CN220964924U

CN220964924U - Foldable electronic device

Info

Publication number: CN220964924U
Application number: CN202320603072.XU
Authority: CN
Inventors: 于卫东; 毛维华; 黄波; 钟鼎; 谢小飞; 查鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2024-05-14
Anticipated expiration: 2033-03-17

Abstract

The embodiment of the application provides foldable electronic equipment, which comprises a first middle frame, a second middle frame and a third middle frame, wherein the first middle frame and the second middle frame are in running fit through a first folding device, and the second middle frame and the third middle frame are in running fit through a third folding device. The folding device also comprises a driving mechanism which is respectively matched with the second middle frame, the third middle frame and the first folding device, when the first middle frame and the second middle frame rotate to enable the first folding device to be unfolded, the first folding device enables the second middle frame and the third middle frame to rotate relatively to be unfolded through the driving mechanism to respectively pull the third middle frame and the first middle frame, just can make the relative second center of first center, the relative second center of third center expand to the exhibition flat simultaneously, realize the disposable exhibition of complete machine, the expansion process is simple coherent and convenient, has showing the smoothness that has promoted the expansion process, realizes folding state to the quick switch of exhibition flat state, promotes the use experience.

Description

Foldable electronic device

Technical Field

The application relates to the technical field of terminals, in particular to foldable electronic equipment.

Background

Along with the gradual maturity of flexible display screen technique, promote electronic equipment's display mode to take place very huge change, one of them is collapsible cell-phone, the emergence of electronic equipment such as computer, but flexible display screen of collapsible electronic equipment can change the switching mode in a flexible way according to different service scenarios, still has high duty cycle and definition simultaneously, for example, can only traditional cell-phone size after the cell-phone is folded, conveniently carry, but can have flat display size after flattening, these characteristics make collapsible equipment become one of the products that is far touted by people.

Currently, two foldable electronic devices with three middle frames folded or unfolded for two times have gradually appeared, and the electronic device may include three middle frames and two folding devices, for example, the three middle frames may be a first middle frame, a second middle frame and a third middle frame, and a rotation fit between the first middle frame and the second middle frame may be achieved through a rotation mechanism, so that the first middle frame and the second middle frame may rotate relatively, and thus fold or unfold each other, and a rotation fit between the second middle frame and the third middle frame may be achieved through another rotation mechanism, so that the second middle frame and the third middle frame may rotate relatively, and may fold or unfold each other. When the first middle frame and the second middle frame are folded, and the second middle frame and the third middle frame are folded, the electronic device can be in a folded state, and when the first middle frame and the second middle frame are unfolded, and the second middle frame and the third middle frame are unfolded, the electronic device can be in a flattened state.

The electronic device needs to be unfolded twice when being flattened, for example, the first middle frame and the second middle frame are relatively rotated to be unfolded, and then the third middle frame and the second middle frame are relatively rotated to be unfolded, so that the process of unfolding the electronic device from a folded state to a flattened state is complicated, and the opening and closing smoothness of the foldable electronic device is affected.

Disclosure of utility model

The application provides a foldable electronic device, which can realize the switching of the electronic device with three folds or more than three folds from a folded state to a flattened state through one unfolding operation, simplify the unfolding process of the foldable electronic device and promote the opening and closing smoothness of the electronic device.

The application provides foldable electronic equipment, which at least comprises a first middle frame, a second middle frame, a third middle frame, a first folding device and a second folding device, wherein the first middle frame and the second middle frame are respectively positioned at two sides of the first folding device, and the first middle frame and the second middle frame are in running fit through the first folding device so as to realize relative rotation between the first middle frame and the second middle frame. The second middle frame and the third middle frame are respectively positioned at two sides of the second folding device, and are in running fit through the second folding device, so that the relative rotation between the second middle frame and the third middle frame is realized, and the electronic equipment can be opened and closed.

The electronic equipment further comprises a driving mechanism which is respectively matched with the second middle frame and the third middle frame, the driving mechanism is also matched with the first folding device, when the first middle frame and the second middle frame relatively rotate to be unfolded, the first folding device is unfolded along with the first middle frame, the unfolding action of the first folding device acts on the driving mechanism to enable the driving mechanism to change (such as the matching state, the matching relation and the like of all parts in the driving mechanism are changed under the unfolding action of the first folding device), and then the second middle frame and the third middle frame relatively rotate to be unfolded through the driving mechanism. That is, when the electronic device is unfolded from the folded state to the flattened state, only the first middle frame is required to be forced to rotate relative to the second middle frame (for example, the third middle frame is held), and then the third middle frame and the first middle frame are respectively pulled, so that the first middle frame can be unfolded to be flattened relative to the second middle frame, and meanwhile, the third middle frame is unfolded to be flattened relative to the second middle frame, so that the electronic device is in the flattened state, the one-time flattening of the whole machine is realized, the unfolding process is simple, consistent and convenient, the smoothness of the unfolding process is obviously improved, the rapid switching from the folded state to the flattened state is realized, and the use experience is improved.

And the linkage between the unfolding of the first folding device and the driving mechanism is realized, so that the second middle frame and the third middle frame relatively rotate to unfold, the driving mechanism is not required to be additionally arranged to drive the driving mechanism to realize the rotation between the third middle frame and the second middle frame, the cost of the electronic equipment is reduced under the condition of realizing the one-time quick flattening of the whole electronic equipment, the space layout in the middle frame of the electronic equipment is convenient, and the light and thin design of the electronic equipment is facilitated.

In one possible implementation, the drive mechanism includes a first magnet structure and a second magnet structure, the first magnet structure being located on one of the second and third midsoles, the second magnet structure being located on the other of the second and third midsoles.

The first folding device is connected with the first magnet structure, the first folding device drives the first magnet structure to move when being unfolded, the movement of the first magnet structure can change the position relation between the first magnet structure and the second magnet structure, and the interaction between the first magnet structure and the second magnet structure can be changed, for example, the interaction between the first magnet structure and the second magnet structure is reduced, or the interaction between the first magnet structure and the second magnet structure is increased, for example, the second middle frame and the third middle frame can be relatively rotated to be unfolded under the rebound force of the bent flexible display screen and/or the repulsive force of the first magnet structure and the second magnet structure.

In one possible implementation manner, the first magnet structure includes a first magnetic pole end, the second magnet structure includes a second magnetic pole end, polarities of the first magnetic pole end and the second magnetic pole end are opposite, when the electronic device is in a folded state, projections of the first magnetic pole end and the second magnetic pole end in a vertical direction at least partially overlap, the vertical direction is perpendicular to a surface of the second middle frame facing the third middle frame, the first magnet structure and the second magnet structure attract each other, and attractive forces of the first magnet structure and the second magnet structure can be used for counteracting reactive force of the bent flexible display screen, so that the electronic device stably maintains the folded state.

When the first folding device is unfolded, the first folding device drives the first magnet structure to move so as to stretch the distance between the first magnetic pole end and the second magnetic pole end, so that the mutual attraction between the first magnet structure and the second magnet structure is weakened or eliminated, and the third middle frame can rotate relative to the second middle frame to be unfolded under the rebound effect of the bent flexible display screen.

In one possible implementation manner, the second magnetic structure further includes a third magnetic pole end, the third magnetic pole end and the second magnetic pole end are respectively located at two sides of the second magnetic structure along a horizontal direction, when the electronic device is in a folded state, the horizontal direction is parallel to a surface of the second middle frame facing the third middle frame, and polarities of the third magnetic pole end and the first magnetic pole end are the same.

When the first folding device is unfolded, the first folding device drives the first magnet structure to move along the horizontal direction, so that the projection of the first magnet end and the third magnet end in the vertical direction is at least partially overlapped, and the first magnet structure and the second magnet structure are mutually repelled. Under the combined action of mutual repulsive interaction and the rebound force of the bent flexible display screen, the third middle frame can be better rotated relative to the second middle frame to be sprung, so that when the first middle frame rotates relative to the second middle frame, the third middle frame can be well driven to rotate relative to the second middle frame, and the smoothness of the whole machine unfolding is further improved.

In one possible implementation manner, the first folding device includes a main shaft mechanism, a first rotating mechanism and a second rotating mechanism respectively located at two sides of the main shaft mechanism, the first middle frame is in rotating fit with the main shaft mechanism through the first rotating mechanism, and the second middle frame is in rotating fit with the main shaft mechanism through the second rotating mechanism, so that the rotating fit between the first middle frame and the second middle frame is achieved.

The first rotating mechanism and the second rotating mechanism are in linkage fit, and the second rotating mechanism is matched with the first magnet structure. When the first rotating mechanism rotates relative to the main shaft mechanism, the first rotating mechanism can drive the second rotating mechanism to rotate relative to the main shaft mechanism, and the second rotating mechanism can drive the first magnet structure to move, so that the interaction between the first magnet structure and the second magnet structure is changed, the third middle frame and the second middle frame are further rotated relative to each other, the unfolding control between the first middle frame and the second middle frame is conveniently realized, and the electronic equipment is more beneficial to realizing one-time rapid flattening.

And the first magnet structure is driven to move through the rotation of the first rotating mechanism, other linkage structures and the like are not required to be added, the whole structure is simple in design and convenient to realize, the cost is reduced, and the thinning of the electronic equipment is realized.

In one possible implementation, the second rotation mechanism includes a linkage member and a connecting member, the connecting member is connected with the second middle frame, and the linkage member is in rotation fit with the first rotation mechanism.

The linkage piece comprises a rotating end and a sliding end, the rotating end is in rotating fit with the spindle mechanism, the sliding end is in sliding fit with the connecting piece along the axis direction perpendicular to the spindle mechanism, and the sliding end is connected with the first magnet structure. The first magnet structure is moved by utilizing the relative sliding between the linkage piece and the connecting piece when the second rotating mechanism rotates, the structural design is simple, the realization is convenient, the first magnet structure has higher moving stability, and the electronic equipment can be flattened rapidly at one time.

In one possible implementation manner, the connecting piece is provided with a coordination groove, the coordination groove extends from one end of the connecting piece facing the main shaft mechanism to one end facing away from the main shaft mechanism, and the sliding end is arranged in the coordination groove in a sliding manner, so that sliding fit between the linkage piece and the connecting piece is realized. The coordination groove can also play a limiting role on the sliding of the linkage piece, and further ensure the unfolding smoothness of the first folding device.

In one possible implementation, the second rotation mechanism further includes a swinging member located on a side of the connection member facing the spindle mechanism, a first end of the swinging member being in rotational engagement with the spindle mechanism, and a second end of the swinging member being in rotational engagement with the connection member. When the linkage piece drives the connecting piece to rotate, the connecting piece and the second end of the swinging piece rotate relatively, and meanwhile, the first end of the swinging piece and the main shaft mechanism are driven to rotate relatively, so that the stability and smoothness of the rotation of the second rotation mechanism are improved.

In one possible implementation, the second middle frame is provided with a receiving groove, and the first magnet structure moves in the receiving groove. The accommodating groove can be used for realizing the fixed assembly of the first magnet structure on the second middle frame, and can also be used for limiting the moving track of the first magnet structure so as to further improve the unfolding smoothness of the electronic equipment.

In one possible implementation manner, the second magnet structure comprises a first magnet and a second magnet which are parallel, the two ends of the first magnet and the second magnet, which are positioned on the same side, respectively form a second magnetic pole end and a third magnetic pole end, the structural design is simple, the strength of interaction between the first magnet structure and the second magnet structure is improved, and the stability of the folding state and the smoothness of the electronic equipment during unfolding are further improved.

In one possible implementation, the first magnet structure includes a first booster magnet, a first magnetic body, and a second booster magnet juxtaposed, the first booster magnet and the second booster magnet being located on either side of the first magnetic body, respectively.

The direction of the magnetic induction line inside the first enhancement magnet is opposite to the direction of the magnetic induction line inside the second enhancement magnet, the direction of the magnetic induction line inside the first magnetic main body is perpendicular to the direction of the magnetic induction line inside the first enhancement magnet and the direction of the magnetic induction line inside the second enhancement magnet, and one end of the first magnetic main body forms a first magnetic pole end. The first enhancement magnet, the second enhancement magnet and the first magnetic body are arranged in the mode, so that the magnetic field intensity of the first magnet structure can be improved, and the interaction intensity between the first magnet structure and the second magnet structure is further enhanced.

In one possible implementation, the second magnet structure includes a third enhancement magnet, a second magnetic body, and a third magnetic body in parallel, the second magnetic body and the third magnetic body being located on either side of the third enhancement magnet, respectively.

The magnetic induction line direction in the third enhanced magnet is perpendicular to the magnetic induction line direction in the second magnetic body and the magnetic induction line direction in the third magnetic body, the magnetic induction line direction in the second magnetic body is parallel and opposite to the magnetic induction line direction in the third magnetic body, and the two ends of the first magnetic body and the second magnetic body, which are positioned on the same side, respectively form a second magnetic pole end and a third magnetic pole end. The third enhancement magnet, the second magnetic body and the third magnetic body are arranged in the mode, so that the magnetic field intensity of the second magnet structure can be improved, and the interaction intensity between the first magnet structure and the second magnet structure is enhanced.

In one possible implementation, the first magnet structure further includes a first metal plate, the first reinforcing magnet, the first magnetic body and the second reinforcing magnet are respectively fixed on the first metal plate, the first magnetic pole end is located on a side of the first magnetic body facing away from the first metal plate, and the first metal plate can facilitate the fixed arrangement of the first magnetic body, the first reinforcing magnet and the second reinforcing magnet and the assembly thereof in the middle frame.

The second magnetic structure further comprises a second metal plate, the third enhancement magnet, the second magnetic body and the third magnetic body are respectively fixed on the second metal plate, the second magnetic pole end and the third magnetic pole end are respectively located on one side, back to the second metal plate, of the second magnetic body and the third magnetic body, and the second metal plate can facilitate the fixation of the third enhancement magnet, the second magnetic body and the third magnetic body and the assembly of the third enhancement magnet, the second magnetic body and the third magnetic body in the middle frame. And the first metal plate and the second metal plate can be beneficial to further enhancing the magnetic field intensity of the first magnetic pole end, the second magnetic pole end and the third magnetic pole end, so as to enhance the interaction intensity between the first magnetic structure and the second magnetic structure.

In one possible implementation, the first magnet structure and the second magnet structure each comprise a plurality of fourth magnetic bodies and a plurality of fourth booster magnets. The fourth enhancement magnets and the fourth magnetic bodies are staggered, the direction of magnetic induction lines in the fourth magnetic bodies is perpendicular to that in the fourth enhancement magnets, and the directions of magnetic induction lines in the two fourth enhancement magnets positioned on two sides of the fourth magnetic bodies are opposite.

One end of a fourth magnetic main body of the first magnetic structure forms a first magnetic pole end, and one ends of two adjacent fourth magnetic main bodies positioned on the same side in the second magnetic structure form a second magnetic pole end and a third magnetic pole end respectively. The magnetic field intensity of the first magnetic structure and the second magnetic structure is enhanced, and the interaction intensity of the first magnetic structure and the second magnetic structure is enhanced.

In a possible implementation manner, the electronic device further comprises a third magnet structure and a fourth magnet structure, wherein the third magnet structure and the fourth magnet structure are respectively positioned on the first middle frame and the second middle frame, when the electronic device is in a folded state, projections of the third magnet structure and the fourth magnet structure in the vertical direction are at least partially overlapped, the third magnet structure and the fourth magnet structure are mutually attracted, attractive force between the third magnet structure and the fourth magnet structure can be used for counteracting rebound force of bending of a part of the flexible display screen corresponding to the first folding device, and the first middle frame and the second middle frame can be ensured to be stably kept in the folded state.

In a possible implementation manner, the electronic device further comprises a fifth magnet structure, the fifth magnet structure is located on the third middle frame, when the electronic device is in a folded state, projections of the fifth magnet structure and the fourth magnet structure in the vertical direction are at least partially overlapped, the fifth magnet structure and the fourth magnet structure are attracted to each other, attractive force between the fifth magnet structure and the fourth magnet structure can be used for counteracting the reactive force of bending of a part of the flexible display screen corresponding to the second folding device, and the second middle frame and the third middle frame can be ensured to stably keep the folded state.

In one possible implementation, the electronic device further includes a flexible display screen, where the flexible display screen is laid on a same side of the first middle frame, the second middle frame, the third middle frame, the first folding device, and the second folding device when the electronic device is in the flattened state.

When electronic equipment is in a folding state, part of flexible display screens are tiled on the first middle frame, the second middle frame and the third middle frame, and are respectively arranged in a bending mode relative to the first folding device and the second folding device, so that the flexible display screens can realize the display requirements of the electronic equipment and can meet the bending requirements of the electronic equipment so as to realize the opening and closing of the electronic equipment.

Drawings

Fig. 1 is a schematic structural diagram of a foldable electronic device in a folded state according to an embodiment of the present application;

Fig. 2 is a schematic structural diagram of a foldable electronic device in an intermediate state according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a foldable electronic device in a flattened state according to an embodiment of the present application;

Fig. 4 is a schematic side view of an electronic device in a flattened state according to an embodiment of the present application;

Fig. 5 is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the present application;

Fig. 6 is a schematic diagram of matching a first magnet and a second magnet when an electronic device provided by an embodiment of the present application is in a folded state;

fig. 7 is a schematic cross-sectional view of an electronic device in an intermediate state according to an embodiment of the present application;

FIG. 8 is a schematic cross-sectional view of an electronic device in a flattened state according to an embodiment of the present application;

fig. 9 is a schematic diagram of a split structure of an electronic device in a folded state according to an embodiment of the present application;

Fig. 10a is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the present disclosure;

Fig. 10b is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the present disclosure;

Fig. 11 is a schematic diagram illustrating the cooperation of a first magnet and a second magnet when another electronic device provided in an embodiment of the present application is in a folded state;

fig. 12 is a schematic diagram illustrating the cooperation of a first magnet and a second magnet when still another electronic device provided in an embodiment of the present application is in a folded state;

fig. 13 is a schematic diagram illustrating the cooperation of the first magnet and the second magnet when still another electronic device provided in the embodiment of the present application is in a folded state;

fig. 14 is a schematic diagram of the cooperation of the first magnet and the second magnet when still another electronic device provided in the embodiment of the present application is in a folded state;

FIG. 15 is a schematic view illustrating a part of an internal structure of an electronic device in a flattened state according to an embodiment of the present application;

Fig. 16 is a schematic cross-sectional structure of an electronic device in a folded state according to an embodiment of the present application;

Fig. 17 is a schematic diagram of a split structure of a first folding device in an electronic apparatus according to an embodiment of the present application;

FIG. 18 is an enlarged view of a portion of the structure of FIG. 16;

FIG. 19 is a schematic cross-sectional view of another electronic device according to an embodiment of the present application in a flattened state;

FIG. 20 is a schematic cross-sectional view of another electronic device according to an embodiment of the present application in an intermediate state;

FIG. 21 is a schematic cross-sectional view of another electronic device according to an embodiment of the present application in a flattened state;

fig. 22 is a schematic sectional partial structure of another electronic device according to an embodiment of the present application in a folded state;

FIG. 23 is a schematic partial view showing an internal structure of another electronic device according to an embodiment of the present application in a flattened state;

Fig. 24 is a schematic view of a first magnet structure and a second magnet structure in another electronic device according to an embodiment of the present application;

fig. 25 is a schematic diagram of a first magnet structure and a second magnet structure in still another electronic device according to an embodiment of the present application.

Reference numerals illustrate:

100-an electronic device;

10-a first middle frame;

20-a second middle frame;

21-a receiving groove;

30-a third middle frame;

40-first folding means;

41-a spindle mechanism;

42-a first rotation mechanism;

43-a second rotation mechanism;

421. 431-connector; 431 a-coordination groove;

422. 432-linkage; 432 a-a sliding end; 432 b-a rotating end;

423. 433-a swinging member;

50-a second folding device;

60-flexible display screen;

70-a driving mechanism;

71-a first magnet structure; 71 a-a first pole end;

711-a first magnetic body; 712-a first booster magnet; 713-a second reinforcement magnet; 714—a first metal plate;

72-a second magnet structure; 72 a-a second pole end; 72 b-a third pole end;

721-a first magnet; 722-a second magnet; 723-a third reinforcement magnet; 724-a second magnetic body; 725-a third magnetic body; 726-a second metal plate;

80-a third magnet structure;

90-fourth magnet structure;

110-fifth magnet structure.

Detailed Description

The terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application.

The foldable electronic device provided by the embodiment of the application may include, but is not limited to, a foldable fixed terminal or mobile terminal such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a touch television, an interphone, a netbook, a POS (point of sale) device, a Personal Digital Assistant (PDA), a wearable device, a virtual reality device, and the like.

In the embodiment of the application, the foldable electronic device is taken as a foldable mobile phone for illustration.

Fig. 1 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in a folded state, fig. 2 is a schematic structural diagram of the foldable electronic device provided in an embodiment of the present application in an intermediate state, and fig. 3 is a schematic structural diagram of the foldable electronic device provided in an embodiment of the present application in a flattened state.

The foldable electronic device may include a middle frame and a folding device, and the number of middle frames may be three, for example, as shown in fig. 1, such as a first middle frame 10, a second middle frame 20, and a third middle frame 30, respectively, and the first middle frame 10 and the third middle frame 30 may be located at two sides of the second middle frame 20. The number of folding devices may be two, such as the first folding device 40 and the second folding device 50, respectively, and the folding devices may be hinges or the like, which enable relative rotation between the two components.

The first middle frame 10 and the second middle frame 20 may be respectively located at two sides of the first folding device 40, and the first middle frame 10 and the second middle frame 20 may be respectively connected with the first folding device 40, so that the first middle frame 10 and the second middle frame 20 may be rotatably matched through the first folding device 40, and a relative rotation between the first middle frame 10 and the second middle frame 20 is achieved.

The second middle frame 20 and the third middle frame 30 may be respectively located at two sides of the second folding device 50, and the second middle frame 20 and the third middle frame 30 may be respectively connected with the second folding device 50, so that the second middle frame 20 and the third middle frame 30 can be in running fit through the second folding device 50, and relative rotation between the second middle frame 20 and the third middle frame 30 is achieved.

Wherein, the middle frame can be including medium plate and frame, and the frame can be enclosed to establish on the peripheral edge of medium plate, and folding device can be connected rather than the medium plate of two frames of both sides respectively. For example, taking the first middle frame and the second middle frame as an example, the first middle frame may include a first middle plate and a first frame, and the first frame is enclosed on an outer peripheral edge of the first middle plate. The second middle frame may also include a second middle plate and a second frame, where the second frame is enclosed on the peripheral edge of the second middle plate. The first folding device may be connected to the first middle plate and the second middle plate, respectively.

Referring to fig. 1, the first middle frame 10 and the second middle frame 20 can be relatively folded to a closed state, the second middle frame 20 and the third middle frame 30 can be relatively folded to a closed state, and when the two middle frames are in the closed state, the two middle frames can be completely folded to be parallel to each other (a small deviation is allowed to exist), and at this time, the electronic device 100 is in the closed state, which is also called a folded state. Accordingly, the first folding means 40 and the second folding means 50 are also in a closed state (folded state).

At least one of the first middle frame 10 and the third middle frame 30 rotates (folds or unfolds) to an intermediate state with respect to the second middle frame 20, so that the electronic device 100 is in the intermediate state, for example, as shown in fig. 2, the first middle frame 10 and the second middle frame 20 rotate with respect to each other to unfold, and the third middle frame 30 and the second middle frame 20 rotate with respect to each other to unfold, so that the electronic device 100 is in the intermediate state. It will be appreciated that the first folding means 40 will be unfolded when the first middle frame 10 and the second middle frame 20 are rotated relative to each other to be unfolded, and correspondingly, the second folding means 50 will be unfolded when the second middle frame 20 and the third middle frame 30 are rotated relative to each other to be unfolded.

Referring to fig. 3, the first and second middle frames 10 and 20 can be relatively unfolded to an open state, and the third and second middle frames 30 and 20 can be relatively unfolded to an open state. For example, when the two center frames are in the open state, they may be approximately 180 ° (allowing for a slight deviation), at which point the electronic device 100 is in the open state, also referred to as the flattened state. Accordingly, the first folding means (not shown) and the second folding means (not shown) are also in an open state (flattened state), respectively.

It will be appreciated that the intermediate state shown in fig. 2 may be any state between an open state and a closed state, i.e. the electronic device 100 may be switched between an open state (i.e. a flattened state) and a closed state (i.e. a folded state) by movement of two folding means.

In the embodiment of the present application, as shown in fig. 1 and 3, when the electronic device 100 is in a flattened state or a folded state, the width direction of the electronic device 100 is the x direction, the length direction of the electronic device 100 is the y direction, and the thickness direction of the electronic device 100 is the z direction.

The length, width, and thickness in the embodiments of the present application are merely for convenience of description, and are not meant to limit the size. For example, the length may be greater than, equal to, or less than the width.

It should be noted that, the electronic device 100 may include only three middle frames and two folding devices, that is, the number of the first middle frame 10, the second middle frame 20, the third middle frame 30, the first folding device 40 and the second folding device 50 may be one, so that when the electronic device 100 is in a folded state, the three middle frames are relatively folded into three layers.

As shown in fig. 1, the electronic device 100 includes a first middle frame 10, a second middle frame 20, a third middle frame 30, a first folding device 40 and a second folding device 50, where the first middle frame 10 and the second middle frame 20 are rotatably connected by the first folding device 40, the second middle frame 20 and the third middle frame 30 are rotatably connected by the second folding device 50, and the first middle frame 10 and the second middle frame 20 are folded relatively, and the third middle frame 30 and the second middle frame 20 are folded relatively, so that the electronic device 100 is in a three-layer middle frame lamination form.

Or the electronic device 100 may include three or more middle frames and two or more folding devices, and the number of at least one of the first middle frame 10, the second middle frame 20, the third middle frame 30, the first folding device 40 and the second folding device 50 may be plural, and adjacent first middle frames 10 and second middle frames 20 may be connected by the first folding device 40, and adjacent second middle frames 20 and third middle frames 30 may be connected by the second folding device 50, so that the electronic device 100 may be in a form of a multi-layer middle frame stack after being folded.

In the embodiment of the present application, the electronic device 100 includes three middle frames as an example.

Referring to fig. 3, the electronic device 100 may further include a foldable flexible display screen 60, wherein the flexible display screen 60 may be laid on the folding apparatus and the center frame. When the electronic device 100 is in the flattened state, the flexible display screen 60 may be tiled on the same side surface of the first middle frame 10, the second middle frame 20, the third middle frame 30, the first folding means (not shown in the figure), and the second folding means (not shown in the figure).

When the electronic device 100 is in the folded state, a part of the flexible display screen may be tiled on the surfaces of the first middle frame 10, the second middle frame 20 and the third middle frame 30, and the part of the flexible display screen opposite to the first folding device and the second folding device is bent and folded.

It can be appreciated that when the electronic device 100 is in the folded state, a portion of the flexible display corresponding to the first folding device and the second folding device is folded, and the folded flexible display forms a rebound force to act on the middle frame and the folding device.

The part of the flexible display screen opposite to the first folding device can be folded outwards, and the part of the flexible display screen opposite to the second folding device can be folded inwards. For example, when the electronic apparatus 100 is in the folded state (refer to fig. 5), a part of the flexible display 60 is located on two opposite sides of the first middle frame 10 and the second middle frame 20 and on the outer side of the first folding device 40, and a part of the flexible display 60 is located on two opposite sides of the second middle frame 20 and the third middle frame 30 and on the inner side of the second folding device 50.

The outer side of the first folding device 40 is a surface on the same side as two opposite sides of the first middle frame 10 and the second middle frame 20, and the inner side of the second folding device 50 is a surface on the same side as two opposite sides of the second middle frame 20 and the third middle frame 30.

Or the portion of the flexible display opposite the first folding means may be folded in, and the portion of the flexible display opposite the second folding means may be folded out, for example, when the electronic device 100 is in a folded state (refer to fig. 19), the portion of the flexible display 60 is located on two sides of the first middle frame 10 and the second middle frame 20 that are adjacent and opposite, and on an inner side of the first folding means 40, and the portion of the flexible display 60 is located on two sides of the second middle frame 20 and the third middle frame 30 that are opposite, and on an outer side of the second folding means 50.

The inner side of the first folding device 40 is a surface on the same side as two opposite sides adjacent to the first middle frame 10 and the second middle frame 20, and the outer side of the second folding device 50 is a surface on the same side as two opposite sides of the second middle frame 20 and the third middle frame 30.

Or in some other examples, the portion of the flexible display screen opposite the first folding device and the portion of the flexible display screen opposite the second folding device may be folded outwards, for example, when the electronic apparatus is in a folded state, the portion of the flexible display screen is located on two opposite sides of the first middle frame and the second middle frame, and on an outer side of the first folding device, and the portion of the flexible display screen is located on two opposite sides of the second middle frame and the third middle frame, and on an outer side of the second folding device, respectively.

Or in other examples, the portion of the flexible display screen opposite the first folding device and the portion of the flexible display screen opposite the second folding device may be folded inwards, for example, when the electronic apparatus is in a folded state, the portion of the flexible display screen is located on two sides of the first middle frame and the second middle frame that are adjacent and opposite, and on an inner side of the first folding device, and the portion of the flexible display screen is located on two sides of the second middle frame and the third middle frame that are adjacent and opposite, and on an inner side of the second folding device, respectively.

The electronic equipment can further comprise a plurality of rear covers, each middle frame can be correspondingly fixed with one rear cover, the flexible display screen can be located on one side of the middle frame, the rear covers can be located on the other side of the middle frame, the rear covers can play a role in protecting the internal structure of the electronic equipment, and when the electronic equipment is in a flattening state, the rear covers can also serve as appearance covers on the back of the electronic equipment, so that the attractiveness of the electronic equipment is improved.

It should be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the electronic device. In other embodiments of the application, the electronic device may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. For example, the electronic device may also include cameras (e.g., front and rear cameras), sensors, flash lights, and the like.

In the use process of the foldable electronic device, under the condition of ensuring that the electronic device is held stably, when the electronic device is unfolded from a folded state to a flattened state, the electronic device often needs to be respectively unfolded twice or even more times (for example, when the number of the middle frames is more than three). For example, the first middle frame (holding the second middle frame and/or the third middle frame) needs to be forced to be first, so that the first middle frame rotates relative to the second middle frame, the first middle frame and the second middle frame relatively expand to be flattened, then the third middle frame (holding the second middle frame and/or the first middle frame) needs to be forced to be third, so that the third middle frame and the second middle frame relatively expand to be flattened, and therefore the electronic device is in a flattened state.

Based on the above, according to the foldable electronic device provided by the embodiment of the application, when the first middle frame and the second middle frame rotate relatively, the third middle frame can be driven to rotate relatively to the second middle frame, and the electronic device can be switched from a folded state to a flattened state through one-time unfolding operation, so that the smoothness and the efficiency of unfolding are obviously improved, and the optimal folding and unfolding use experience is realized.

Fig. 4 is a schematic side view of an electronic device in a flattened state according to an embodiment of the present application.

Referring to fig. 4, the electronic device 100 may include a driving mechanism 70, and the driving mechanism 70 may achieve the purpose of relatively rotating the second middle frame 20 and the third middle frame 30 when the first folding device 40 is unfolded.

Specifically, the driving mechanism 70 may be respectively engaged with the second middle frame 20 and the third middle frame 30, and the driving mechanism 70 may also be engaged with the first folding device 40, so that when the first middle frame 10 and the second middle frame 20 are relatively rotated to be unfolded by applying force, the first folding device 40 is unfolded accordingly. The unfolding action of the first folding device 40 acts on the driving mechanism 70, so that the driving mechanism 70 is changed (such as the matching state, the matching relation and the like of all the components in the driving mechanism 70 are changed under the unfolding action of the first folding device), and further the third middle frame 30 and the second middle frame 20 can rotate relatively to unfold, that is, the third middle frame 30 can spring away relative to the second middle frame 20.

That is, when the electronic device 100 is unfolded from the folded state to the flattened state, only the first middle frame 10 (the third middle frame 30 is held) is needed to rotate the first middle frame 10 relative to the second middle frame 20, and then the third middle frame 30 and the first middle frame 10 are pulled respectively, so that the first middle frame 10 can be unfolded to the flattened state relative to the second middle frame 20, and meanwhile, the third middle frame 30 can be unfolded to the flattened state relative to the second middle frame 20, so that the electronic device 100 is in the flattened state, the one-time flattening of the whole machine is realized, the unfolding process is simple, consistent and convenient, the smoothness of the unfolding process is obviously improved, the rapid switching from the folded state to the flattened state can be realized, and the use experience is improved.

Moreover, the unfolding of the first folding device 40 acts on the driving mechanism 70, so that the second middle frame 20 and the third middle frame 30 relatively rotate to unfold, that is, the unfolding of the first folding device 40 and the linkage between the driving mechanism 70 are realized, a driving structure is not needed to be additionally arranged to drive the driving mechanism 70, so that the rotation between the third middle frame 30 and the second middle frame 20 is realized, the cost of the electronic device 100 is reduced under the condition that the whole electronic device 100 is quickly flattened at one time, the excessive space occupied by the driving mechanism in the middle frames (such as the second middle frame 20 and the third middle frame 30) is reduced or avoided, the space layout in the middle frames is facilitated, and the light and thin design of the electronic device 100 is facilitated.

Fig. 5 is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the present application, and fig. 6 is a schematic mating view of a first magnet structure and a second magnet structure of the electronic device in a folded state according to an embodiment of the present application.

Therein, shown in fig. 5 is a cross-sectional view of the electronic device in a folded state formed at the first and second magnet structures along the x-z plane.

Taking a part of the flexible display screen opposite to the first folding device as an outer fold, and taking a part of the flexible display screen opposite to the second folding device as an inner fold as an example. Referring to fig. 5, that is, when the electronic apparatus 100 is in the folded state, the first folding device 40 is in the folded state, and a portion of the flexible display screen (e.g., the flexible display screen 60a in fig. 5) opposite to the first folding device 40 is folded and tiled on the outer side surface of the first folding device 40. The second folding device 50 is also in a folded state, the second folding device 50 is closed to form a screen accommodating space, and a part of the flexible display screen (such as the flexible display screen 60b in fig. 5) opposite to the second folding device 50 is folded and arranged in the screen accommodating space.

The drive mechanism 70 may include a first magnet structure 71 and a second magnet structure 72, wherein the first magnet structure 71 may be located within one of the second middle frame 20 and the third middle frame 30 and the second magnet structure 72 may be located within the other of the second middle frame 20 and the third middle frame 30. As shown in fig. 5, the first magnet structure 71 is located in the second middle frame 20, the second magnet structure 72 is located in the third middle frame 30, and by way of example, the first magnet structure 71 may be disposed on the second middle plate of the second middle frame 20, and the second magnet structure 72 may be disposed on the third middle plate of the third middle frame 30.

Of course, in some other examples, the first magnet structure 71 may also be located within the third midframe 30 and the second magnet structure 72 may also be located within the second midframe 20.

Based on the properties of the magnets themselves, interactions, such as mutual attraction or mutual repulsion, may occur between the first magnet structure 71 and the second magnet structure 72. For example, the first magnet structure 71 may include a first magnetic pole end 71a, the second magnet structure 72 may include a second magnetic pole end 72a, and the polarity of the first magnetic pole end 71a and the polarity of the second magnetic pole end 72a may be opposite. When the first pole tip 71a and the second pole tip 72a are opposed, for example, when projections of the first pole tip 71a and the second pole tip 72a in the z direction at least partially overlap, the first magnet structure 71 and the second magnet structure 72 attract each other.

The second magnet structure 72 may further include a third pole end 72b, and the polarity of the third pole end 72b may be the same as the polarity of the first pole end 71 a. When the first pole end 71a and the third pole end 72b are opposite, the first magnet structure 71 and the second magnet structure 72 repel each other.

Wherein the first magnet structure 71 may be movably disposed in the second middle frame 20, as shown in fig. 5, when the first middle frame 10 rotates relative to the second middle frame 20 to unfold the first folding device 40, the first folding device 40 may drive the first magnet structure 71 to move, and the movement of the first magnet structure 71 may change the relative positional relationship between the first magnet structure 71 and the second magnet structure 72, so that the interaction between the first magnet structure 71 and the second magnet structure 72 may be changed, for example, the attraction between the two may be reduced or the repulsion between the two may be increased, and the second middle frame 20 and the third middle frame 30 may be relatively rotated to unfold, for example, the second middle frame 20 and the third middle frame 30 may be relatively rotated under the repulsive force of the bent flexible display screen 60 and/or the repulsive force of the first magnet structure 71 and the second magnet structure 72.

Wherein movement of the first magnet structure 71 changes the interaction between the first magnet structure 71 and the second magnet structure 72 to effect relative rotation of the third intermediate frame 30 and the second intermediate frame 20, which may be implemented in a variety of ways.

For example, referring to fig. 5, when the electronic device 100 is in the folded state, the first folding device 40 and the second folding device 50 are respectively in the folded state, and the first magnet structure 71 and the second magnet structure 72 have an attractive interaction therebetween, at this time, a portion of the flexible display screen (such as the flexible display screen 60 a) opposite to the first folding device 40 is in the folded state, and a portion of the flexible display screen (such as the flexible display screen 60 b) opposite to the second folding device 50 is also in the folded state, so that the attractive force of the first magnet structure 71 and the second magnet structure 72 can be used to counteract the elastic force generated by the folded flexible display screen, so as to ensure that the electronic device can stably maintain the folded state.

When the first middle frame 10 rotates relative to the second middle frame 20 to unfold the first folding device 40, the first folding device 40 can drive the first magnet structure 71 to move, for example, the first magnet structure 71 moves away from the second magnet structure 72, so that the mutual attraction between the first magnet structure 71 and the second magnet structure 72 is weakened or eliminated, and the third middle frame 30 can rotate relative to the second middle frame 20 to unfold under the rebound effect of the bent flexible display screen.

Illustratively, as shown in fig. 6, the first pole end 71a of the first magnet structure 71 is an N pole end, the second pole end 72a of the second magnet structure 72 is an S pole end, and the third pole end 72b of the second magnet structure 72 is an N pole. When the electronic device 100 is in the folded state, as shown in fig. 5, with a side of the second middle frame 20 facing the third middle frame 30 perpendicular to the vertical direction, for example, the z direction in the drawing, the first magnetic pole end 71a of the first magnetic structure 71 may be opposite to the second magnetic pole end 72a of the second magnetic structure 72, that is, the projections of the first magnetic pole end 71a and the second magnetic pole end 72a in the vertical direction at least partially overlap, so that an attractive force is generated between the first magnetic structure 71 and the second magnetic structure 72, and the attractive force may be used to offset the repulsive force generated by the bent flexible display screen 60b, so as to ensure that the second middle frame 20 and the third middle frame 30 are stably in the folded state.

Taking the arrow direction shown in fig. 6 as the horizontal direction, taking the example that the first magnet structure 71 can move in the horizontal direction, the first magnet structure 71 moves to be able to lengthen the distance between the first magnet pole end 71a and the second magnet pole end 72a (the straight line distance between the center of the end face of the first magnet pole end 71a and the center of the end face of the second magnet pole end 72 a), for example, the overlapping portion of the projections of the first magnet pole end 71a and the second magnet pole end 72a in the vertical direction may be reduced or even not overlapped, and the mutual attraction between the first magnet pole end 71a and the second magnet pole end 72a is weakened or eliminated.

Referring to fig. 5, when the first middle frame 10 is rotated relative to the second middle frame 20, the first folding device 40 expands and drives the first magnet structure 71 to move along the horizontal direction (the direction of the straight arrow in fig. 5), so that the distance between the first magnetic pole end 71a and the second magnetic pole end 72a is increased, the mutual attraction between the first magnetic pole end 71a and the second magnetic pole end 72a is weakened or eliminated, and the third middle frame 30 can be pushed to rotate relative to the second middle frame 20 to spring away under the rebound action of the flexible display screen (the flexible display screen 60 b), so as to realize the expansion between the third middle frame 30 and the second middle frame 20.

It will be appreciated that in this example, the direction of movement of the first magnet structure 71 may be varied such that the distance between the first pole end 71a and the second pole end 72a is increased, and the attractive force between the first pole end 71a and the second pole end 72a is reduced or eliminated.

For example, when the electronic device is in the folded state, the first magnet structure 71 may move in the horizontal direction parallel to the surface of the second middle frame 20 facing the third middle frame 30, so that the movement of the first magnet structure 71 can be reduced or avoided to occupy the space in the thickness z direction (vertical direction) of the electronic device 100, which is convenient for the thinning design of the electronic device 100.

The horizontal direction may be a width direction (e.g., an x direction in fig. 5) of the electronic device 100, and when the electronic device 100 is in a folded state, as shown in fig. 5, the first magnetic pole end 71a of the first magnetic structure 71 and the second magnetic pole end 72a of the second magnetic structure 722 are opposite, and the first magnetic structure 71 and the second magnetic structure 72 attract each other.

When the first middle frame 10 and the second middle frame 20 are rotated to unfold the first folding device 40, the first magnet structure 71 may move towards the first folding device 40 along the horizontal direction (i.e. the x direction), or the first magnet structure 71 may also move away from the first folding device 40 along the horizontal direction, so that the distance between the first magnet end 71a and the second magnet end 72a can be pulled away, and the mutual attraction between the first magnet structure 71 and the second magnet structure 72 is weakened or eliminated, so that the third middle frame 30 and the second middle frame 20 can relatively rotate to unfold.

To ensure that the third middle frame 30 can be well rotated relative to the second middle frame 20 when the first folding device 40 is unfolded, two ends of the second magnet structure 72 along the horizontal direction may be respectively a second magnetic pole end 72a and a third magnetic pole end 72b, as shown in fig. 5, taking the horizontal direction parallel to the width direction of the electronic device 100 as an example, when the electronic device 100 is in a folded state, the first magnetic pole end 71a of the first magnet structure 71 is opposite to the second magnetic pole end 72a of the second magnet structure 72.

When the first middle frame 10 and the second middle frame 20 are rotated to unfold the first folding device 40, the first folding device 40 drives the first magnet structure 71 to move along the horizontal direction.

Taking the example that the third magnetic pole end 72b is disposed closer to the first folding device 40 than the second magnetic pole end 72a, the first magnetic pole structure 71 can be moved towards the first folding device 40 along the horizontal direction, so that the projections of the first magnetic pole end 71a and the third magnetic pole end 72b in the vertical direction (z direction) can be at least partially overlapped, that is, the first magnetic pole end 71a and the third magnetic pole end 72b are opposite, the attractive force of the first magnetic pole end 71a and the second magnetic pole end 72a is reduced, the first magnetic pole end 71a and the third magnetic pole end 72b repel each other, that is, the first magnetic pole end 71a and the second magnetic pole end 72b generate a mutual repulsive interaction, and under the combined action of the mutual repulsive interaction and the repulsive force of the bent flexible display screen 60b, the third middle frame 30 can be rotated and sprung out relative to the second middle frame 20 better, so that when the first middle frame 10 is rotated relative to the second middle frame 20, the third middle frame 30 can be driven to rotate relatively to the second middle frame 20, and the whole machine is further unfolded is guaranteed.

Of course, in some other examples, the third magnetic pole end may be further away from the first folding device than the second magnetic pole end, and when the first folding device is unfolded, the first magnetic pole end of the first magnetic structure and the third magnetic pole end of the second magnetic structure may be opposite, so that the first magnetic structure and the second magnetic structure repel each other, and under the combined action of the repulsive interaction and the folded flexible display screen, the third middle frame may well rotate relative to the second middle frame to be unfolded.

With continued reference to fig. 5, the first magnet structure 71 may be disposed adjacent to the first folding device 40, so as to facilitate a mating arrangement between the first folding device 40 and the first magnet structure 71, so that the first folding device 40 can drive the first magnet structure 71 to move.

When the electronic device 100 is in the folded state, the positions of the first magnet structure 71 and the second magnet structure 72 may correspond (the projections in the z direction at least partially overlap), so that the first magnetic pole end 71a and the second magnetic pole end 72a are opposite, and the attraction effect of the two is ensured. Therefore, the second magnet structure 72 may be disposed adjacent to the outer edge (the edge facing away from the second folding device 50) of the third middle frame 30, so that the third middle frame 30 can rotate relative to the second middle frame 20 to spring away under relatively small repulsive force, which is convenient for implementation and further improves the unfolding smoothness.

Fig. 7 is a schematic cross-sectional view of an electronic device in an intermediate state according to an embodiment of the present application, and fig. 8 is a schematic cross-sectional view of the electronic device in a flattened state according to an embodiment of the present application.

Wherein, the cross-section schematic view formed along the x-z plane when the electronic device is in the intermediate state is shown in fig. 7, and the cross-section schematic view formed along the x-z plane when the electronic device is in the flattened state is shown in fig. 8.

As shown in fig. 7, after the third middle frame 30 rotates relative to the second middle frame 20 to be unfolded, the first middle frame 10 can be unfolded continuously to be flattened relative to the second middle frame 20 by pulling the third middle frame 30 and the first middle frame 10 respectively, and meanwhile, the third middle frame 30 can be unfolded continuously to be flattened relative to the second middle frame 20. Referring to fig. 8, the electronic device 100 is put in a flattened state as a whole.

Fig. 9 is a schematic diagram of a split structure of an electronic device in a folded state according to an embodiment of the present application.

Referring to fig. 9, in order to facilitate the movement of the first magnet structure 71, a receiving groove 21 may be formed in the second middle frame 20, the first magnet structure 71 may be received in the receiving groove 21, and the first magnet structure 71 may be moved in the receiving groove 21 under the driving of the first folding device 40.

The accommodating groove 21 can be used for realizing the fixed assembly of the first magnet structure 71 on the second middle frame 20, and the accommodating groove 21 can also play a role in limiting the moving track of the first magnet structure 71 so as to further improve the smoothness of one-time unfolding of the electronic equipment.

To enable stable retention of the electronic device in the folded state, with continued reference to fig. 9, the electronic device may further include a third magnet structure 80, a fourth magnet structure 90, and a fifth magnet structure 110.

The third magnet structure 80 may be fixed on the first middle frame 10, for example, a mounting groove (not shown) may be formed on the first middle plate of the first middle frame 10, and the first magnet structure 71 may be fixed in the mounting groove by bonding, a fixing element connection, a clamping element clamping connection, or the like.

The fourth magnet structure 90 may be fixed to the second middle frame 20, and illustratively, a mounting groove may be formed in the second middle plate of the second middle frame 20, and the fourth magnet structure 90 is fixed in the mounting groove.

The fifth magnet structure 110 may be fixed to the third middle frame 30, and illustratively, a mounting groove may be formed in the third middle plate of the third middle frame 30, and the fifth magnet structure 110 may be fixed in the mounting groove.

The fourth and fifth magnet structures 90 and 110 may be fixed in the mounting groove by referring to the first magnet structure.

Fig. 10a is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the present application. Therein, shown in fig. 10a is a cross-sectional view of the electronic device in a folded state formed at the third magnet structure along the x-z plane.

Referring to fig. 10a, when the electronic device 100 is in the folded state, the third magnet structure 80 may be opposite to the fourth magnet structure 90 (e.g., the fourth magnet structure 90a in the drawing), that is, the projections of the third magnet structure 80 and the fourth magnet structure 90 in the vertical direction (z direction) at least partially overlap, so that the third magnet structure 80 and the fourth magnet structure 90 attract each other, and the interaction between the third magnet structure 80 and the fourth magnet structure 90 may be used to counteract the repulsive force generated by bending a portion of the flexible display screen (the flexible display screen 60 a) opposite to the first folding device 40, so as to ensure that the first middle frame 10 and the second middle frame 20 can remain in the folded state.

The fourth magnet structure 90 may also be opposite to the fifth magnet structure 110, where the projections of the fourth magnet structure 90 (e.g., the fourth magnet structure 90b in the figures) and the fifth magnet structure 110 in the vertical direction (z-direction) at least partially overlap, so that the fourth magnet structure 90 and the fifth magnet structure 110 attract each other, and the interaction between the fourth magnet structure 90 and the fifth magnet structure 110 may be used to counteract the repulsive force generated by bending a portion of the flexible display screen 60 (the flexible display screen 60 b) corresponding to the second folding device 50, so as to ensure that the second middle frame 20 and the third middle frame 30 can be kept in the folded state.

In addition, damping structures may be further disposed in the first folding device 40 and the second folding device 50, respectively, so as to provide damping force during the opening and closing process of the electronic device 100, and improve the opening and closing experience. When the electronic device 100 is in the folded state, the damping action of the damping structure, the mutual attraction between the first magnet structure 71 and the second magnet structure 72, the mutual attraction between the third magnet structure 80 and the fourth magnet structure 90, and the mutual attraction between the fourth magnet structure 90 and the fifth magnet structure 110 can overcome the rebound force of the bent flexible display screen together, so that the electronic device as a whole can be stably maintained in the folded state.

Wherein the number of the third magnet structure 80, the fourth magnet structure 90 and the fifth magnet structure 110 may be one or more, it is understood that the fourth magnet structure 90 may be opposite to the third magnet structure 80 and the fourth magnet structure 90 may be opposite to the fifth magnet structure 110 when the electronic device 100 is in the folded state. In some examples, the fourth magnet structure 90 may be a plurality, a portion of the fourth magnet structure 90 may be opposite the third magnet structure 80, and a portion of the fourth magnet structure may be opposite the fifth magnet structure 110. For example, referring to fig. 10a, the fourth magnet structure 90 may include a fourth magnet structure 90a and a fourth magnet structure 90b, the fourth magnet structure 90a and the third magnet structure 80 being stacked in sequence in the z-direction with their projections at least partially overlapping, the fourth magnet structure 90b and the fifth magnet structure 110 being stacked in sequence in the z-direction with their projections at least partially overlapping.

Fig. 10b is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the present application.

Or in some other examples, the fourth magnet structure 90 may be opposite the third magnet structure 80 and the fifth magnet structure 110, respectively, e.g., as shown with reference to fig. 10b, the third magnet structure 80, the fourth magnet structure 90 and the fifth magnet structure 110 may be stacked in sequence in the z-direction, with the projections of the three in the z-direction at least partially overlapping.

Fig. 11 is a schematic diagram illustrating the cooperation of the first magnet structure and the second magnet structure when another electronic device provided in the embodiment of the application is in a folded state.

Of course, in some other examples, the horizontal direction may also be a length direction (i.e., a y direction) of the electronic device, and when the electronic device is in the folded state, as shown in fig. 11, the first magnetic pole end 71a of the first magnetic structure 71 and the second magnetic pole end 72a of the second magnetic structure 72 are opposite, and the first magnetic structure 71 and the second magnetic structure 72 attract each other.

When the first middle frame rotates relative to the second middle frame to enable the first folding device to be unfolded, the first magnet structure 71 can move towards the top end or the bottom end of the second middle frame along the y direction, and the distance between the first magnet end 71a and the second magnet end 72a can be further lengthened, so that the attraction between the first magnet structure 71 and the second magnet structure 72 is weakened or eliminated, and the third middle frame rotates relative to the second middle frame to be unfolded under the rebound effect of the flexible display screen.

Accordingly, the second pole end 72a and the third pole end 72b of the second magnet structure 72 may be respectively distributed along the y direction, when the first folding device 40 is unfolded, the first magnet structure 71 moves along the y direction, and the first pole end 71a of the first magnet structure 71 and the third pole end 72b of the second magnet structure 72 may be opposite, the first magnet structure 71 and the second magnet structure 72 repel each other, and the third middle frame rotates and is unfolded relative to the second middle frame under the combined action of the repulsive force and the repulsive force of the flexible display screen.

Of course, in some other examples, the first magnet structure may also be moved in a vertical direction, such as the vertical direction may be the thickness direction (z-direction) of the electronic device.

Fig. 12 is a schematic diagram illustrating the cooperation of the first magnet structure and the second magnet structure when the electronic device is in a folded state according to another embodiment of the present application.

When the electronic device is in the folded state, referring to fig. 12, the first pole end 71a of the first magnet structure 71 and the second pole end 72a of the second magnet structure 72 are opposite, and the first magnet structure 71 and the second magnet structure 72 attract each other to ensure that the second middle frame and the third middle frame are in a stable folded state.

When the first middle frame and the second middle frame are rotated to enable the first folding device to be unfolded, the first folding device can drive the first magnet structure 71 to move away from the second magnet structure 72 (namely away from the third middle frame) along the vertical direction (namely in the z direction), so that the first magnet end 71a and the second magnet end 72a are far away, the attraction effect between the first magnet end 71a and the second magnet end 72a is reduced, and the third middle frame and the second middle frame are relatively rotated to be unfolded under the rebound effect of the flexible display screen, so that primary unfolding of the electronic equipment is achieved.

In another possible example, when the electronic device is in a folded state (i.e., the first folding device is in a folded state), the first magnet structure and the second magnet structure may be disposed at a relatively large distance, there may be no interaction between the first magnet structure and the second magnet structure, or there may be a small mutual repulsive interaction between the two, but insufficient to drive the third middle frame to rotate relative to the second middle frame.

When the first middle frame rotates relative to the second middle frame to enable the first folding device to be unfolded, the first folding device can drive the first magnet structure to move, for example, the first magnetic pole end of the first magnet structure is close to the third magnetic pole end of the second magnet structure to move, so that larger mutual repulsive interaction is generated between the first magnet structure and the second magnet structure, and the third middle frame can rotate relative to the second middle frame under the combined action of repulsive interaction and the resilience of the flexible display screen.

Fig. 13 is a schematic diagram illustrating the cooperation of the first magnet structure and the second magnet structure when still another electronic device according to the embodiment of the present application is in a folded state.

For example, referring to fig. 13, the first pole end 71a of the first magnet 721 is taken as an N pole, and the third pole end 72b of the second magnet 722 is taken as an N pole.

When the electronic device is in a folded state, the first magnet structure 71 and the second magnet structure 72 may be disposed relatively far apart, with no interaction between the first pole end 71a and the second pole end 72a, or with less mutual repulsion between the first pole end 71a and the second pole end 72 a.

Taking the example that the first magnet structure 71 may be moved in the horizontal direction (such as the x direction in fig. 13), the first magnet structure 71 may be moved to close the distance between the first magnet pole end 71a and the third magnet pole end 72b of the second magnet structure 72, for example, the first magnet pole end 71a and the third magnet pole end 72b are opposite, so that the projections of the first magnet pole end 71a and the third magnet pole end 72b in the vertical direction at least partially overlap, and a larger repulsive effect is generated between the first magnet pole end and the third magnet pole end 72 b.

That is, when the first middle frame rotates relative to the second middle frame, the first folding device is unfolded, and the first folding device drives the first magnet structure 71 to move along the horizontal direction, so that the first magnet structure 71a and the third magnet structure 72b are opposite, the first magnet structure 71 and the second magnet structure 72 repel each other, and the third middle frame rotates relative to the second middle frame to be unfolded under the combined action of the rebound force and the repulsive force of the bent flexible display screen.

It will be appreciated that in this example, the direction of movement of the first magnet structure 71 may be varied, such that the first and third magnet ends 71a, 72b are drawn closer together, while increasing the mutual repulsion between the first and second magnet structures 71, 72.

For example, the first magnet structure 71 can move along a horizontal direction, and the horizontal direction can be parallel to the surface of the second middle frame facing the third middle frame, so that the space occupied by the movement of the first magnet structure 71 in the thickness direction of the electronic device can be reduced or avoided, and the thinning design of the electronic device is facilitated.

The horizontal direction may be the width direction (i.e., x direction) of the electronic device, or the horizontal direction may be the length direction (i.e., y direction) of the electronic device 1.

Fig. 14 is a schematic diagram illustrating the cooperation of the first magnet structure and the second magnet structure when the electronic device is in a folded state according to another embodiment of the present application.

Of course, in some other examples, the first magnet structure 71 may also move in a vertical direction, which may be perpendicular to a face of the second middle frame facing the third middle frame, e.g., the vertical direction may be a thickness direction (i.e., z-direction) of the electronic device.

For example, when the electronic device is in a folded state, the first pole end 71a of the first magnet structure 71 and the third pole end 72b of the second magnet structure 72 are distributed in the z-direction with a relatively large distance therebetween.

When the first middle frame rotates relative to the second middle frame, the first folding device is unfolded, and referring to fig. 14, the first folding device drives the first magnet structure 71 to move towards the second magnet structure 72 (towards the third middle frame) along the z direction, so that the first magnetic pole end 71a of the first magnet structure 71 and the second magnetic pole end 72a of the second magnet structure 72 are pulled to be mutually repulsive, that is, the first magnet structure 71 and the second magnet structure 72 can have a relatively large mutual repulsive interaction, and the third middle frame and the second middle frame relatively rotate to be unfolded under the combined action of the mutual repulsive interaction and the reactive force of the flexible display screen.

In the embodiment of the present application, the first folding device may be configured to drive the first magnet structure to move when being unfolded, where the first magnet structure may be directly connected to a component structure (such as a linkage member) in the first folding device to drive the first magnet structure to move. That is, the first folding device can directly drive the first magnet structure to move when being unfolded, other linkage structures and the like are not required to be added, the whole structural design is simple, the realization is convenient, the cost is reduced, and the thinning design of the electronic equipment is realized.

Or the electronic device may further comprise a linkage structure by which the first magnet structure may be connected with a component structure (e.g. a linkage member, as described below) within the first folding means. When the first folding device is unfolded, the first folding device can drive the first magnet structure to move through the linkage structure.

The linkage structure can be any structural member or component formed by a plurality of structures and the like capable of realizing power transmission, so that the moving design of the first magnet structure can be enriched, the first magnet structure can conveniently move along a plurality of directions, and different requirements of electronic equipment are met.

The following describes a matching relationship between the first folding device and the first magnet structure, taking an example that the first magnet structure can move along the width direction (i.e., the x direction) of the electronic device, and the first folding device can directly drive the first magnet structure to move.

Fig. 15 is a schematic partial view of an internal structure of an electronic device in a flattened state according to an embodiment of the present application.

Referring to fig. 15, the first folding device 40 may include a main shaft mechanism 41, a first rotation mechanism 42, and a second rotation mechanism 43.

The first rotating mechanism 42 and the second rotating mechanism 43 may be located at two sides of the spindle mechanism 41, and the first rotating mechanism 42 may be connected to the first middle frame 10 and the spindle mechanism 41, respectively, so that the first middle frame 10 may be in rotating fit with the spindle mechanism 41 through the first rotating mechanism 42.

The second rotating mechanism 43 may be connected to the second middle frame 20 and the spindle mechanism 41, respectively, so that the second middle frame 20 may be in rotating fit with the spindle mechanism 41 through the second rotating mechanism 43, thereby enabling the first middle frame 10 and the second middle frame 20 to relatively rotate.

It is understood that the structure of the second folding device 50 may be the same as that of the first folding device 40, and the second folding device 50 may also include a spindle mechanism and two rotating mechanisms located at two sides of the spindle mechanism, and specific reference may be made to the first folding device, which is not described in detail in this example.

Of course, in some other examples, the structure of the second folding device 50 may also be different from the structure of the first folding device 40.

In this example, the first folding device 40 and the second folding device 50 are the same in structure. Taking the first folding device 40 as an example, when the electronic apparatus is in a folded state (closed state), the first rotating mechanism 42 and the second rotating mechanism 43 are relatively folded to a closed state (see fig. 16), and are folded and substantially parallel to each other, and the first folding device 40 is in the folded state (closed state).

When the electronic apparatus is in the intermediate state, at least one of the first rotating mechanism 42 and the second rotating mechanism 43 is rotated (folded or unfolded) with respect to the main shaft mechanism 41, respectively, and the first folding device 40 is in the intermediate state. For example, the first rotating mechanism 42 and the second rotating mechanism 43 are rotated with respect to the main shaft mechanism 41, respectively, to be unfolded, and the first folding device 40 is unfolded to an intermediate state.

When the electronic apparatus is in the flattened state, the first rotating mechanism 42 and the second rotating mechanism 43 are rotated to the open state with respect to the spindle mechanism 41, respectively, and as shown in fig. 15, adjacent two of the first rotating mechanism 42, the spindle mechanism 41 and the second rotating mechanism 43 may be substantially 180 ° (a small deviation is allowed) therebetween, and the first folding device 40 is in the flattened state (open state).

The first rotating mechanism 42 and the second rotating mechanism 43 may implement linkage fit, that is, when the first middle frame rotates relative to the main shaft mechanism 41, the first rotating mechanism 42 will rotate relative to the main shaft mechanism 41, and the first rotating mechanism 42 can drive the second rotating mechanism 43 to rotate relative to the main shaft mechanism 41, that is, the second middle frame rotates relative to the main shaft mechanism, so that the first folding device 40 is unfolded.

The second rotating mechanism 43 may be matched with the first magnet structure 71, for example, the second rotating mechanism 43 may be fixedly connected with the first magnet structure 71, and when the second rotating mechanism 43 rotates, the first magnet structure 71 may be driven to move, so as to change interaction between the first magnet structure 71 and the second magnet structure 72, and further enable the third middle frame and the second middle frame to relatively rotate, so that the unfolding control between the first middle frame and the second middle frame is convenient to realize, and one-time rapid flattening of the electronic device is more facilitated.

Fig. 16 is a schematic cross-sectional structure diagram of an electronic device in a folded state according to an embodiment of the present application. Therein, shown in fig. 16 is a cross-sectional view of the electronic device in a folded state formed at the first folding means along the x-z plane.

Specifically, referring to fig. 16, when the electronic apparatus is in the folded state, the first folding means is in the folded state, the first pole end 71a of the first magnet structure 71 and the second pole end 72a of the second magnet structure 72 are opposite, and the first magnet structure 71 and the second magnet structure 72 are attracted to each other.

When the first middle frame 10 rotates relative to the second middle frame 20, the first middle frame 10 drives the first rotating mechanism 42 to rotate relative to the main shaft mechanism 41, and the first rotating mechanism 42 drives the second rotating mechanism 43 to rotate relative to the main shaft mechanism 41, so that the first folding device 40 is unfolded.

The rotation of the second rotating mechanism 43 moves the first magnet structure 71 along the x direction, for example, taking the flexible display screen (the flexible display screen 60 a) of the portion opposite to the first folding device 40 as an example, the rotation of the second rotating mechanism 43 drives the first magnet structure 71 to move along the x direction towards the spindle mechanism 41, so that the first magnetic pole end 71a of the first magnet structure 71 is opposite to the third magnetic pole end 72b of the second magnet structure 72, and the first magnet structure 71 and the second magnet structure 72 repel each other, so that the third middle frame 30 rotates relative to the second middle frame 20 to be unfolded.

Fig. 17 is a schematic diagram of a split structure of a first folding device in an electronic apparatus according to an embodiment of the present application, and fig. 18 is an enlarged view of a partial structure in fig. 16.

The first rotating mechanism 42 and the second rotating mechanism 43 in the first folding device 40 may have the same structure.

For example, the first rotating mechanism 42 and the second rotating mechanism 43 may include a connecting member, as shown in fig. 17, such as a connecting member 421 and a connecting member 431, respectively, where the connecting member 421 is fixedly connected to the first middle frame 10, and the connecting member 431 is fixedly connected to the second middle frame 20.

The first and second rotation mechanisms 42, 43 may also include linkages, such as linkage 422 and linkage 432, respectively.

Taking the linkage member 432 as an example, the linkage member 432 may include a rotating end 432b and a sliding end 432a, where the rotating end 432b is in rotating fit with the spindle mechanism 41, the sliding end 432a is in sliding fit with the connecting member 431, and the sliding end 432a can slide along the x direction relative to the connecting member 431.

The sliding end 432a may be fixedly connected to the first magnet structure 71, and the rotation of the connecting member 431 may drive the rotation end 432b of the linking member 432 to rotate, and meanwhile, the sliding end 432a of the linking member 432 and the connecting member 431 slide relatively in the x direction, so that the sliding end 432a may drive the first magnet structure 71 to move in the x direction. That is, the first magnet 721 is driven to move by the relative sliding between the sliding member and the connecting member when the second rotating mechanism 43 rotates, so that the structure is simple and convenient to implement. And compared with the connection of the first magnet structure 71 and other structural members in the second rotating mechanism 43 (such as a swinging member, etc.), the movement of the linkage member has higher stability, which is beneficial to ensuring the movement stability of the first magnet structure 71 and further beneficial to one-time quick flattening of the electronic equipment 100.

It will be appreciated that when the portion of the flexible display screen opposite to the first folding device 40 is folded outwards, the first folding device 40 is unfolded from the folded state to the flattened state, the sliding end 432a of the linkage 432 moves towards the spindle mechanism 41 along the x direction relative to the connecting member 431, and the linkage 432 drives the first magnet structure 71 to move towards the spindle mechanism 41 (the first folding device 40) along the x direction.

In contrast, when the portion of the flexible display screen opposite to the first folding device 40 is folded, the first folding device 40 is unfolded from the folded state to the flattened state, the sliding end 432a of the linkage member 432 moves away from the spindle mechanism 41 along the x direction relative to the connecting member 431, and the linkage member 432 drives the first magnet structure 71 to move away from the spindle mechanism 41 (the first folding device 40) along the x direction.

With continued reference to fig. 17, the connection member 431 may be provided with a coordination groove 431a, and the coordination groove 431a may extend from an end of the connection member 431 facing the spindle mechanism 41 to an end facing away from the spindle mechanism 41. For example, the coordination groove 431a may extend in the x-direction, so that an end of the coordination groove 431a closer to the spindle mechanism 41 may be a leading end, and an end of the coordination groove 431a farther from the spindle mechanism 41 may be a trailing end.

The sliding end 432a of the linkage member 432 may be disposed through the coordination groove 431a and coupled to the first magnet structure 71, and the sliding end 432a may slide along the coordination groove 431a with respect to the connection member 431 to achieve a sliding fit between the linkage member 432 and the connection member 431. And the coordination groove 431a can play a role of limiting the sliding of the linkage 432, so that the unfolding smoothness of the first folding device 40 is further ensured.

The rotational end 432b of the linkage 432 may be in rotational engagement with the rotational end of the linkage 422 to effect linkage of the first and second rotary mechanisms 42, 43.

For example, the rotating end 432b of the linkage member 432 may have a first tooth structure thereon, the rotating end of the linkage member 422 may have a second tooth structure thereon, and the first tooth structure and the second tooth structure may be engaged with each other to rotate the linkage member 432 when the linkage member 422 rotates.

Wherein the first tooth structure and the second tooth structure may be in direct meshing engagement. Or the two may be engaged with each other through other transmission structures, for example, the spindle mechanism 41 may include a gear assembly, the gear assembly may include a plurality of gears engaged with each other, and the gear assembly may be engaged with the first tooth structure and the second tooth structure respectively, so as to implement linkage engagement between the first tooth structure and the second tooth structure.

As shown in fig. 18, when the electronic device is in the folded state, the first magnet structure 71 may be located at the rear end of the receiving groove 21, the first magnet end 71a of the first magnet structure 71 and the second magnet end 72a of the second magnet structure 72 are opposite, and the first magnet structure 71 and the second magnet structure 72 are attracted to each other.

When the first middle frame 10 is forced to rotate relative to the spindle mechanism 41, the first middle frame 10 can drive the connecting piece 421 to rotate relative to the spindle mechanism 41, the connecting piece 421 drives the linkage piece 422 to rotate, the linkage piece 422 drives the linkage piece 432 to rotate, the linkage piece 432 drives the connecting piece 431 to rotate, and the second middle frame 20 can also rotate relative to the spindle mechanism 41, so that the first folding device is unfolded.

Meanwhile, the linkage member 432 and the connecting member 431 relatively slide along the x direction, and the linkage member 432 can drive the first magnet structure 71 to slide along the x direction towards the spindle mechanism 41, that is, the first magnet structure 71 slides towards the head end of the accommodating groove 21, so that the first magnet end 71a of the first magnet structure 71 is opposite to the third magnet end 72b of the second magnet structure 72, the first magnet structure 71 and the second magnet structure 72 repel each other, and the third middle frame 30 can rotate relative to the second middle frame 20 under the repulsive action and the rebound action of the bent flexible display screen so as to be unfolded.

When the electronic device 100 is in the flattened state, the first magnet structure 71 may be located at the head end of the accommodation groove 21 (shown with reference to fig. 15).

The manner of the rotational fit between the link and the spindle mechanism 41 is not limited in this embodiment. Illustratively, the linkage member and the spindle mechanism may be rotatably disposed through shaft hole matching, taking the linkage member 432 as an example, a first shaft hole may be formed on a rotating end 432b of the linkage member 432, a first rotating shaft may be disposed on the spindle mechanism 41, and the rotating end 432b may be rotatably disposed on the first rotating shaft through the first shaft hole, thereby implementing the running fit between the linkage member 432 and the spindle mechanism 41.

The first rotation mechanism 42 and the second rotation mechanism 43 may further include a swinging member (see fig. 17), such as a swinging member 423 and a swinging member 433, respectively.

Taking the swing member 433 as an example, the swing member 433 may be located at a side of the connection member 431 facing the spindle unit 41, a first end of the swing member 433 may be rotatably fitted with the spindle unit 41, and a second end of the swing member 433 may be rotatably fitted with the connection member 431. When the linkage member 432 drives the connection member 431 to rotate, the connection member 431 and the second end of the swing member 433 rotate relatively, and simultaneously drive the first end of the swing member 433 and the spindle mechanism 41 to rotate relatively, so that the stability and smoothness of the rotation of the second rotation mechanism 43 are improved.

The implementation manner of the running fit between the first end of the swinging member and the spindle mechanism 41 is not limited in this embodiment, for example, the spindle mechanism 41 may have an arc-shaped track, the first end of the swinging member may have an arc-shaped structure, and the first end of the swinging member may be inserted into the arc-shaped track and slide along the arc-shaped track, so as to implement the running fit between the first end of the swinging member and the spindle mechanism 41.

In this embodiment, the implementation manner of the rotation fit between the second end of the swinging member and the connecting member is not limited, and by way of example, the swinging member and the connecting member may also be rotatably set through shaft hole fit, for example, a second shaft hole may be formed in the second end of the swinging member, a second rotating shaft may be disposed in the connecting member, and the second end of the swinging member may be rotatably set on the second rotating shaft through the second shaft hole, so that the rotation fit between the swinging member and the connecting member is implemented.

Fig. 19 is a schematic cross-sectional view of another electronic device in a flattened state, and fig. 19 is a cross-sectional view of another electronic device in a folded state, where the cross-sectional view is formed along an x-z plane at a first magnet structure and a second magnet structure.

In some other examples, referring to fig. 19, the portion of the flexible display opposite the first folding device 40 may be folded out and the portion of the flexible display opposite the second folding device 50 may be folded in. That is, when the electronic device 100 is in the folded state, the first folding device 40 is closed to form a screen accommodating space, and a portion of the flexible display screen (e.g., the flexible display screen 60 a) corresponding to the first folding device 40 is folded and disposed in the screen accommodating space. The second folding device 50 is in a folded state, and a part of the flexible display screen (such as the flexible display screen 60 b) corresponding to the second folding device 50 is folded and tiled on the outer side surface of the second folding device 50.

Accordingly, when a force is applied to the first middle frame 10 to rotate relative to the second middle frame 20, the first folding device 40 is opened accordingly, and the first folding device 40 can drive the first magnet structure 71 to move, so as to change the interaction between the first magnet structure 71 and the second magnet structure 72, thereby enabling the third middle frame 30 to rotate relative to the second middle frame 20 to be unfolded.

For example, with continued reference to fig. 19, when the electronic device 100 is in the folded state, the first pole end 71a of the first magnet structure 71 may be opposite the second pole end 72a of the second magnet structure 72, and the first magnet structure 71 and the second magnet structure 72 may be attracted to each other.

Taking the horizontal direction as the x direction as an example, the second magnet structure 72 may have two ends in the horizontal direction, namely, the second magnet end 72a and the third magnet end 72b, and when the first middle frame 10 and the second middle frame 20 are rotated to unfold the first folding device 40, the first folding device 40 drives the first magnet 721 to move in the horizontal direction.

Taking the case that the third magnetic pole end 72b is disposed more adjacent to the first folding device 40, when the first folding device 40 is unfolded, the first magnetic pole structure 71 can be driven to move towards the first folding device 40 along the horizontal direction, so that the first magnetic pole end 71a and the third magnetic pole end 72b are opposite, mutual repulsion action is generated between the first magnetic pole structure 71 and the second magnetic pole structure 72, and the third middle frame 30 can be rotated to be sprung off better relative to the second middle frame 20 under the combined action of the mutual repulsion action and the resilience force of the bent flexible display screen.

Fig. 20 is a schematic cross-sectional view of another electronic device provided in an embodiment of the present application in an intermediate state, and fig. 21 is a schematic cross-sectional view of another electronic device provided in an embodiment of the present application in a flattened state.

In which, fig. 20 shows a schematic cross-sectional view along the x-z plane when the electronic device is in an intermediate state, and fig. 21 shows a schematic cross-sectional view along the x-z plane when the electronic device is in a flattened state.

As shown in fig. 20, after the third middle frame 30 rotates relative to the second middle frame 20 to spring open, the third middle frame 30 and the first middle frame 10 are pulled respectively, so that the first middle frame 10 can be further unfolded relative to the second middle frame 20 until the first middle frame is flattened, and the third middle frame 30 is further unfolded relative to the second middle frame 20 until the second middle frame is flattened, as shown in fig. 21, the whole electronic device 100 is in a flattened state, and one-time flattening of the electronic device 100 is realized.

It can be appreciated that the first folding device 40 drives the first magnet structure 71 to move to change the interaction between the first magnet structure 71 and the second magnet structure 72, so that the relative rotation of the third middle frame 30 and the second middle frame 20 to be unfolded can also be achieved in other manners, and reference is made to the foregoing, which is not repeated in this example.

The first folding device 40 moves the first magnet structure 71 when unfolded, and the first magnet structure 71 may be directly connected with a component structure in the first folding device 40, or the first magnet structure 71 may also be connected with the first folding device 40 through a linkage structure.

The matching relationship between the first magnet structure 71 and the first folding device 40 can also be referred to above, and will not be described in detail in this example.

Fig. 22 is a schematic sectional partial structure of another electronic device provided in an embodiment of the present application in a folded state, and fig. 23 is a schematic sectional partial structure of another electronic device provided in an embodiment of the present application in a flattened state.

For example, the first magnet structure 71 moves along the width direction (i.e. x direction) of the electronic device 100, and the first folding device 40 directly drives the first magnet structure 71 to move.

Referring to fig. 22, the first magnet structure 71 is connected to the link 432 of the second rotating mechanism, and when the electronic device is in a folded state, the first magnet end 71a of the first magnet 721 is opposite to the second magnet end 72a of the second magnet structure 72, for example, the first magnet structure 71 may be located at the head end of the receiving groove 21.

When the first middle frame 10 rotates relative to the second middle frame 20, the first middle frame 10 drives the connecting piece 421 and the linkage piece 422 of the first rotating mechanism to rotate, the linkage piece 422 drives the linkage piece 432 of the second rotating mechanism to rotate, and the linkage piece 432 drives the connecting piece 431 to rotate, so that the second middle frame 20 can rotate relative to the main shaft mechanism 41, and the first folding device is unfolded.

Meanwhile, the linkage member 432 and the connecting member 431 slide along the x direction back to the spindle mechanism 41, and the linkage member 432 drives the first magnet structure 71 to slide towards the tail end of the accommodating groove 21, so that the first magnetic pole end 71a of the first magnet structure 71 can be opposite to the third magnetic pole end 72b of the second magnet structure 72, and further the third middle frame 30 can rotate relative to the second middle frame 20 to be unfolded.

Referring to fig. 23, when the electronic device 100 is in a flattened state, for example, the first magnet structure 71 may be located at the rear end of the accommodating groove 21.

In the embodiment of the application, the first magnet structure and the second magnet structure may be respectively single magnets, one end of the first magnet structure along the internal magnetic induction line may be a first magnetic pole end, and two ends of the second magnet structure along the internal magnetic induction line may be respectively a second magnetic pole end and a third magnetic pole end. The magnetic induction line inside the magnet is in a direction from the S-pole to the N-pole of the magnet.

Or the first magnet structure and the second magnet structure may be composed of a plurality of magnets, respectively. For example, in one possible example, the first magnet structure 71 may be a single magnet (as shown with reference to fig. 6), and the first magnet structure 71 may form a first magnetic pole end, such as an N-pole end, along one end of its inner magnetic induction line.

The second magnet structure 72 may include a first magnet 721 and a second magnet 722 in parallel, and a direction of a magnetic induction line inside the first magnet 721 may be opposite to that inside the second magnet 722, and one end of the first magnet 721 along the direction of the magnetic induction line forms a second magnetic pole end 72a, such as an S pole end. The second magnet 722 forms a third magnetic pole end 72b along the inner magnetic induction line direction, such as an N pole end, and the second magnetic pole end and the third magnetic pole end 72b are located on the same side, which is favorable for improving the strength of interaction between the first magnet structure 71 and the second magnet structure 72, and further improving the stability of the folding state and the smoothness of the electronic device during unfolding.

The first magnet 721 and the second magnet 722 may be juxtaposed along the moving direction (e.g., the x-direction) of the first magnet structure 71, so that after the first magnet structure 71 moves, the first magnet structure 71 and the second magnet structure 72 repel each other, and the unfolding smoothness of the third middle frame 30 and the second middle frame 20 is ensured.

Fig. 24 is a schematic diagram of a first magnet structure and a second magnet structure in another electronic device according to an embodiment of the present application.

Or in another possible example, referring to fig. 24, the first magnet structure 71 may include a first reinforcing magnet 712, a first magnetic body 711, and a second reinforcing magnet 713 arranged in parallel, the first reinforcing magnet 712 and the second reinforcing magnet 713 may be located at both sides of the first magnetic body 711, and the first reinforcing magnet 712, the first magnetic body 711, and the second reinforcing magnet 713 may also be arranged in parallel along the moving direction of the first magnet structure 71, and each of the magnetic bodies may be a single magnet.

In order to ensure the magnetic strength of the first magnetic structure 71, the first magnetic body 711, the first enhancement magnet 712, and the second enhancement magnet 713 may be magnetized to form the first magnetic structure 71, where the magnetizing direction is shown by a dashed arrow in fig. 24, and the magnetizing direction of the magnet is parallel to and opposite to the internal magnetization direction of the magnet. The magnetizing directions of the first booster magnet 712 and the second booster magnet 713 may be opposite, for example, the magnetizing directions may all point to the first magnetic body 711, that is, the direction of the magnetization line inside the first booster magnet 712 after magnetizing is opposite to the direction of the magnetization line inside the second booster magnet 713, for example, the direction of the magnetization line is opposite to the direction of the magnetization line inside the second booster magnet 713, respectively, facing away from the first magnetic body 711.

The magnetizing direction of the first magnetic body 711 may be perpendicular to the magnetizing directions of the first booster magnet 712 and the second booster magnet 713, so that the magnetic induction line direction inside the first magnetic body 711 after magnetizing is perpendicular to the magnetic induction line direction inside the first booster magnet 712 and the magnetic induction line direction inside the second booster magnet 713, the magnetic induction line direction inside the first magnetic body 711 may be perpendicular to the arrangement directions of the first booster magnet 712, the first magnetic body 711 and the second booster magnet 713, and the first magnetic pole end 71a is one end of the first magnetic body 711 along the magnetic induction line direction, as shown in the S-pole end of the first magnetic body 711 in fig. 24. The first reinforcing magnet 712, the second reinforcing magnet 713 and the first magnetic body 711 are arranged in the above manner, so that the magnetic field strength of the first magnet structure 71 can be increased, and the interaction strength between the first magnet structure 71 and the second magnet structure 72 can be further enhanced.

To facilitate the fixing of the first magnetic body 711, the first reinforcing magnet 712, and the second reinforcing magnet 713, the first magnet structure 71 may further include a first metal plate 714, and the first magnetic body 711, the first reinforcing magnet 712, and the second reinforcing magnet 713 may be fixed to the first metal plate 714, wherein the first magnetic pole end 71a is located on a side of the first magnetic body 711 facing away from the first metal plate 714. The provision of the first metal plate 714 facilitates the fixed arrangement of the first magnetic body 711, the first reinforcing magnet 712, and the second reinforcing magnet 713 and the assembly thereof within the middle frame. But also to further enhance the magnetic field strength of the first pole end 71 a.

With continued reference to fig. 24, the second magnetic structure 72 may include a third enhancement magnet 723, a second magnetic body 724, and a third magnetic body 725, wherein the second magnetic body 724 and the third magnetic body 725 may be located on two sides of the third enhancement magnet 723, respectively, and the third enhancement magnet 723, the second magnetic body 724, and the third magnetic body 725 may also be disposed in parallel along the moving direction of the first magnetic structure 71, and two ends of the second magnetic body 724 and the third magnetic body 725 on the same side are the second magnetic pole end 72a and the third magnetic pole end 72b, respectively, as in fig. 24, the S-pole end of the second magnetic body 724 and the N-pole end of the third magnetic body 725.

The magnetization direction of the third enhancement magnet 723 may be perpendicular to the magnetization direction of the second magnetic body 724 and the magnetization direction of the third magnetic body 725, respectively, that is, the magnetization direction inside the second magnetic body 724 and the magnetization direction inside the third magnetic body 725 are perpendicular to the magnetization direction inside the third enhancement magnet 723, respectively.

The magnetizing directions of the second and third magnetic bodies 724 and 725 may be perpendicular to the arrangement directions of the third enhancement magnet 723, the second magnetic body 724 and the third magnetic body 725, respectively, one end of the second magnetic body 724 along the magnetization line direction and one end of the third magnetic body 725 along the magnetization line direction form the second and third magnetic poles 72a and 72b, respectively, and the magnetizing direction of the second magnetic body 724 may be opposite to the magnetizing direction of the third magnetic body 725, that is, the magnetization line direction inside the second magnetic body 724 and the magnetization line direction inside the third magnetic body 725 are opposite, so that the polarities of the second and third magnetic poles 72a and 72b located on the same side are opposite. The third reinforcement magnet 723, the second magnetic body 724, and the third magnetic body 725 are arranged in the above-described manner, and can increase the magnetic field strength of the second magnet structure 72, thereby enhancing the strength of interaction between the first magnet structure 71 and the second magnet structure 72.

Correspondingly, the second magnetic structure 72 may also include a second metal plate 726, the third enhancement magnet 723, the second magnetic body 724 and the third magnetic body 725 are respectively fixed on the second metal plate 726, the second magnetic pole end 72a is located at an end of the second magnetic body 724 opposite to the second metal plate 726, and the third magnetic pole end 72b is located at an end of the third magnetic body 725 opposite to the second metal plate 726, so as to facilitate the fixing of the third enhancement magnet 723, the second magnetic body 724 and the third magnetic body 725 and the assembly thereof in the middle frame, and also facilitate the further enhancement of the magnetic field strength of the second magnetic pole end 72a and the third magnetic pole end 72 b.

Or in yet another possible example, the first magnet structure 71 and the second magnet structure 72 may be magnet assembly structures formed by arranging a Halbach Array (Halbach Array) for a plurality of magnets, respectively. It is advantageous to enhance the magnetic field strength of the first and second magnet structures 71, 72, thereby enhancing the interaction strength of the first and second magnet structures 71, 72.

For example, the first magnet structure 71 and the second magnet structure 72 may each include a plurality of fourth magnetic bodies and a plurality of fourth booster magnets. Referring to fig. 25, taking an example in which the first magnet structure 71 includes three fourth magnetic bodies and three fourth reinforcing magnets, there may be a fourth magnetic body 715a, a fourth magnetic body 715b, a fourth magnetic body 715c, and fourth reinforcing magnets 716a, 716b, 716c, respectively. The second magnet structure 72 includes three fourth booster magnets and three fourth magnetic bodies, such as may be fourth magnetic body 727a, fourth magnetic body 727b, fourth magnetic body 727c, and fourth booster magnet 728a, fourth booster magnet 728b, fourth booster magnet 728c, respectively.

Wherein the fourth plurality of booster magnets and the fourth plurality of magnetic bodies are staggered, e.g., the fourth plurality of booster magnets and the fourth plurality of magnetic bodies may be aligned along a direction (e.g., x-direction in the drawing) in which the first magnet structure 71 moves. The magnetizing directions of the two fourth enhancement magnets positioned on two sides of the fourth magnetic main body can be opposite, the magnetizing direction of the fourth magnetic main body can be perpendicular to the magnetizing direction of the fourth enhancement magnets, and the direction of a magnetic induction line inside the fourth magnetic main body can be perpendicular to the arrangement directions of the fourth magnetic main body and the fourth enhancement magnets. That is, the directions of the magnetic induction lines inside the two reinforcing magnets located on both sides of the same fourth magnetic body are opposite, so that the directions of the magnetic induction lines inside the two adjacent fourth magnetic bodies are opposite, and the polarities of the two ends of the two adjacent fourth magnetic bodies located on the same side (in the direction perpendicular to the arrangement direction) are opposite. Wherein, the distance between two adjacent fourth magnetic bodies is the minimum value of the intervals between the plurality of fourth magnetic bodies, and no other fourth magnetic bodies exist between the two adjacent fourth magnetic bodies.

For example, taking the first magnet structure 71 in fig. 25 as an example, the fourth enhancement magnet 716a and the fourth enhancement magnet 716b are respectively located at two sides of the fourth magnetic body 715a, the magnetizing directions of the fourth enhancement magnet 716a and the fourth enhancement magnet 716b (the dotted line direction in fig. 25) are opposite, the fourth enhancement magnet 716b and the fourth enhancement magnet 716c are respectively located at two sides of the fourth magnetic body 715b, the magnetizing directions of the fourth enhancement magnet 716b and the fourth enhancement magnet 716c are opposite, and one end of the fourth magnetic body 715a along the magnetic induction line direction may form the first magnetic pole end 71a (e.g., the S-pole end of the fourth magnetic body 715a in fig. 25).

Taking the second magnet structure 72 in fig. 25 as an example, the fourth booster magnet 728a and the fourth booster magnet 728b are respectively located at two sides of the fourth magnetic body 727a, the magnetizing direction of the fourth booster magnet 728a is opposite to the magnetizing direction of the fourth booster magnet 728b, the fourth booster magnet 728b and the fourth booster magnet 728c are located at two sides of the fourth magnetic body 727b, the magnetizing directions of the fourth booster magnet 28b and the fourth booster magnet 728c are opposite, one end of the fourth magnetic body 727a along the magnetic induction line direction forms a second magnetic pole end 72a (such as the N-pole end of the fourth magnetic body 727a in fig. 25), one end of the fourth magnetic body 727b along the magnetic induction line direction on the same side as the second magnetic pole end 72a forms a third magnetic pole end 72b (such as the S-pole end of the fourth magnetic body 727b in fig. 25), and the magnetism of the third magnetic pole end 72b is guaranteed to be opposite to that of the second magnetic pole end 72 a.

It will be appreciated that since the first and second magnet structures 71, 72 include a plurality of fourth magnetic bodies, a plurality of first magnet poles 71a may be formed in the first magnet structure 71, and a plurality of staggered second and third magnet poles 72a, 72b may be formed in the second magnet structure 72, which is advantageous for further enhancing the strength of interaction between the first and second magnet structures 71, 72.

For example, when the electronic device is in the folded state, the plurality of first magnetic poles 71a may correspond to the plurality of second magnetic poles 72a one by one, which is advantageous for enhancing the strength of the mutual attraction between the first magnetic structure 71 and the second magnetic structure 72. As shown in fig. 25, the S-pole end of the fourth magnetic body 715a is opposite to the N-pole end of the fourth magnetic body 727a, the N-pole end of the fourth magnetic body 715b is opposite to the S-pole end of the fourth magnetic body 727b, and the S-pole end of the fourth magnetic body 715c is opposite to the N-pole end of the fourth magnetic body 727c, enhancing the attraction between the first and second magnet structures 71 and 72.

When the first middle frame and the second middle frame are unfolded, the first magnet structure 71 moves, so that the first magnet ends 71a and the third magnet ends 72b can be in one-to-one correspondence, and the strength of mutual repulsion between the first magnet structure 71 and the second magnet structure 72 is enhanced. If the first magnet structure 71 is moved in the direction (x-direction) in which the fourth magnetic body and the fourth reinforcing magnet are aligned, the S-pole end of the fourth magnetic body 715a may be opposite to the S-pole end of the fourth magnetic body 727b, and the N-pole end of the fourth magnetic body 715b may be opposite to the N-pole end of the fourth magnetic body 727c, thereby reinforcing the repulsive interaction between the first magnet structure 71 and the second magnet structure 72.

In describing embodiments of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly coupled, indirectly coupled through an intermediary, in communication between two elements, or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances. The terms "first," "second," "third," "fourth," and the like, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present application, and are not limited thereto; although embodiments of the present application have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The foldable electronic equipment is characterized by at least comprising a first middle frame (10), a second middle frame (20), a third middle frame (30), a first folding device (40) and a second folding device (50), wherein the first middle frame (10) and the second middle frame (20) are respectively positioned at two sides of the first folding device (40), the first middle frame (10) and the second middle frame (20) are in running fit through the first folding device (40), the second middle frame (20) and the third middle frame (30) are respectively positioned at two sides of the second folding device (50), and the second middle frame (20) and the third middle frame (30) are in running fit through the second folding device (50);

the folding device further comprises a driving mechanism (70), wherein the driving mechanism (70) is respectively matched with the second middle frame (20) and the third middle frame (30), the driving mechanism (70) is also matched with the first folding device (40), and when the first middle frame (10) and the second middle frame (20) relatively rotate to enable the first folding device (40) to be unfolded, the first folding device (40) enables the second middle frame (20) and the third middle frame (30) to relatively rotate to be unfolded through the driving mechanism (70).

2. The foldable electronic device according to claim 1, wherein the drive mechanism (70) comprises a first magnet structure (71) and a second magnet structure (72), the first magnet structure (71) being located on one of the second middle frame (20) and the third middle frame (30), the second magnet structure (72) being located on the other of the second middle frame (20) and the third middle frame (30);

The first folding device (40) is connected with the first magnet structure (71), and the first folding device (40) drives the first magnet structure (71) to move when being unfolded so as to change interaction between the first magnet structure (71) and the second magnet structure (72).

3. The foldable electronic device according to claim 2, wherein the first magnet structure (71) comprises a first magnet extremity (71 a), the second magnet structure (72) comprises a second magnet extremity (72 a), the first magnet extremity (71 a) and the second magnet extremity (72 a) being of opposite polarity;

When the electronic device is in a folded state, projections of the first magnetic pole end (71 a) and the second magnetic pole end (72 a) in a vertical direction at least partially overlap, the vertical direction is perpendicular to one surface of the second middle frame (20) facing the third middle frame (30), and the first magnet structure (71) and the second magnet structure (72) attract each other;

when the first folding device (40) is unfolded, the first folding device (40) drives the first magnet structure (71) to move so as to pull the distance between the first magnetic pole end (71 a) and the second magnetic pole end (72 a) far.

4. A foldable electronic device according to claim 3, characterized in that the second magnet structure (72) further comprises a third magnet extremity (72 b), the third magnet extremity (72 b) and the second magnet extremity (72 a) being located on respective sides of the second magnet structure (72) in a horizontal direction, which is parallel to a face of the second middle frame (20) facing the third middle frame (30) when the electronic device is in a folded state, the third magnet extremity (72 b) and the first magnet extremity (71 a) being of the same polarity;

When the first folding device (40) is unfolded, the first folding device (40) drives the first magnet structure (71) to move along the horizontal direction, the projection of the first magnet end (71 a) and the projection of the third magnet end (72 b) in the vertical direction are at least partially overlapped, and the first magnet structure (71) and the second magnet structure (72) are mutually repelled.

5. The foldable electronic device according to any one of claims 2-4, wherein the first folding means (40) comprises a spindle mechanism (41), a first rotation mechanism (42) and a second rotation mechanism (43) respectively located at both sides of the spindle mechanism (41), the first middle frame (10) is in rotation fit with the spindle mechanism (41) through the first rotation mechanism (42), and the second middle frame (20) is in rotation fit with the spindle mechanism (41) through the second rotation mechanism (43);

the first rotating mechanism (42) and the second rotating mechanism (43) are in linkage fit, and the second rotating mechanism (43) is connected with the first magnet structure (71).

6. The foldable electronic device according to claim 5, wherein the second rotation mechanism (43) comprises a linkage member (432) and a connecting member (431), the connecting member (431) being connected with the second middle frame (20), the linkage member (432) and the first rotation mechanism (42) being in a rotation fit;

The linkage piece (432) comprises a rotating end (432 b) and a sliding end (432 a), the rotating end (432 b) is in rotating fit with the main shaft mechanism (41), the sliding end (432 a) is in sliding fit with the connecting piece (431) along the axis direction perpendicular to the main shaft mechanism (41), and the sliding end (432 a) is connected with the first magnet structure (71).

7. The foldable electronic device according to claim 6, wherein the connection member (431) is provided with a coordination groove (431 a), the coordination groove (431 a) extends from an end of the connection member (431) facing the spindle mechanism (41) to an end facing away from the spindle mechanism (41), and the sliding end (432 a) is slidably disposed along an extending direction of the coordination groove (431 a).

8. The foldable electronic device according to claim 6, wherein the second rotating mechanism (43) further comprises a swinging member (433), the swinging member (433) being located at a side of the connection member (431) facing the spindle mechanism (41), a first end of the swinging member (433) being in rotating engagement with the spindle mechanism (41), and a second end of the swinging member (433) being in rotating engagement with the connection member (431).

9. Foldable electronic device according to any of claims 2-4, characterized in that the second middle frame (20) is provided with a receiving slot (21), the first magnet structure (71) moving in the receiving slot (21).

10. The foldable electronic device of claim 4, wherein the second magnet structure (72) comprises a first magnet (721) and a second magnet (722) juxtaposed, both ends of the first magnet (721) and the second magnet (722) located on the same side forming the second magnetic pole end (72 a) and the third magnetic pole end (72 b), respectively.

11. The foldable electronic device of claim 4, wherein the first magnet structure (71) comprises a first reinforcement magnet (712), a first magnetic body (711) and a second reinforcement magnet (713) in parallel, the first reinforcement magnet (712) and the second reinforcement magnet (713) being located on either side of the first magnetic body (711), respectively;

The direction of the magnetic induction line inside the first enhancement magnet (712) is opposite to the direction of the magnetic induction line inside the second enhancement magnet (713), the direction of the magnetic induction line inside the first magnetic body (711) is perpendicular to the direction of the magnetic induction line inside the first enhancement magnet (712) and the direction of the magnetic induction line inside the second enhancement magnet (713), and one end of the first magnetic body (711) forms the first magnetic pole end (71 a).

12. The foldable electronic device of claim 11, wherein the second magnet structure (72) comprises a third enhancement magnet (723), a second magnetic body (724) and a third magnetic body (725) in parallel, the second magnetic body (724) and the third magnetic body (725) being located on either side of the third enhancement magnet (723), respectively;

The direction of the magnetic induction line inside the third enhancement magnet (723) is perpendicular to the direction of the magnetic induction line inside the second magnetic body (724) and the direction of the magnetic induction line inside the third magnetic body (725), the direction of the magnetic induction line inside the second magnetic body (724) is opposite to the direction of the magnetic induction line inside the third magnetic body (725), and the two ends of the first magnetic body (711) and the second magnetic body (724) which are positioned on the same side respectively form the second magnetic pole end (72 a) and the third magnetic pole end (72 b).

13. The foldable electronic device of claim 12, wherein the first magnet structure (71) further comprises a first metal plate (714), the first reinforcement magnet (712), the first magnetic body (711) and the second reinforcement magnet (713) being fixed to the first metal plate (714), respectively, the first magnetic pole end (71 a) being located on a side of the first magnetic body (711) facing away from the first metal plate (714);

The second magnet structure (72) further comprises a second metal plate (726), the third reinforcement magnet (723), the second magnetic body (724) and the third magnetic body (725) are respectively fixed on the second metal plate (726), and the second magnetic pole end (72 a) and the third magnetic pole end (72 b) are respectively located on one side, facing away from the second metal plate (726), of the second magnetic body (724) and the third magnetic body (725).

14. The foldable electronic device of claim 4, wherein the first magnet structure (71) and the second magnet structure (72) each comprise a plurality of fourth magnetic bodies and a plurality of fourth enhancement magnets;

The fourth enhancement magnets and the fourth magnetic bodies are staggered, the direction of magnetic induction lines in the fourth magnetic bodies is perpendicular to the direction of magnetic induction lines in the fourth enhancement magnets, and the directions of magnetic induction lines in the two fourth enhancement magnets positioned on two sides of the fourth magnetic bodies are opposite;

One end of the fourth magnetic body of the first magnetic structure (71) forms the first magnetic pole end (71 a), and two adjacent ends of the fourth magnetic body on the same side in the second magnetic structure (72) respectively form the second magnetic pole end (72 a) and the third magnetic pole end (72 b).

15. The foldable electronic device according to any of claims 1-4, further comprising a third magnet structure (80) and a fourth magnet structure (90), the third magnet structure (80) and the fourth magnet structure (90) being located on the first middle frame (10) and the second middle frame (20), respectively;

when the electronic device is in a folded state, projections of the third magnet structure (80) and the fourth magnet structure (90) in a vertical direction at least partially overlap, and the third magnet structure (80) and the fourth magnet structure (90) attract each other.

16. The foldable electronic device of claim 15, further comprising a fifth magnet structure (110), the fifth magnet structure (110) being located on the third center (30);

When the electronic device is in a folded state, projections of the fifth magnet structure (110) and the fourth magnet structure (90) in a vertical direction at least partially overlap, and the fifth magnet structure (110) and the fourth magnet structure (90) attract each other.

17. The foldable electronic device according to any of claims 1-4, further comprising a flexible display screen (60);

When the electronic equipment is in a flattened state, the flexible display screen (60) is paved on the same side surface of the first middle frame (10), the second middle frame (20), the third middle frame (30), the first folding device (40) and the second folding device (50);

When the electronic equipment is in a folding state, part of the flexible display screen (60) is tiled on the first middle frame (10), the second middle frame (20) and the third middle frame (30), and the part opposite to the first folding device (40) and the second folding device (50) is respectively bent and arranged on the flexible display screen (60).