CN111092324A

CN111092324A - A kind of interface unit

Info

Publication number: CN111092324A
Application number: CN202010067588.8A
Authority: CN
Inventors: 吴亚蕾; 王芹; 付金辉
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-05-01

Abstract

The invention relates to a connector, which belongs to the technical field of connectors and comprises a connector shell and a contact component, wherein the connector shell comprises a shell side plate with a clamping window, elastic cantilever arms are arranged on the shell side plate, each elastic cantilever arm is provided with the clamping window, the contact component comprises a mounting base body and a contact element, the contact element is fixed on the mounting base body, a latch is arranged on the mounting base body, and a clamping block is arranged on the latch. In the process of assembling the connector, the contact part can be smoothly inserted into the connector shell, and the elastic cantilever arm and the latch can elastically deform, so that the requirement on the maximum deformation of the latch is low, and the requirement on the process of assembling the contact fixing piece is low as long as the elastic cantilever arm and the latch can smoothly insert the contact part into the connector shell after being matched.

Description

A kind of interface unit

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a connector.

Background

The connector is a key node in electrical and transmission communication equipment and is an important component for ensuring stable connection and transmission of electrical signals and electric energy.

When designing the assembling structure of the connector, it is a conventional way to realize the assembling and fixing of the contact parts by interference fitting of the convex ribs or bonding with an adhesive. However, for a connector with a shell of a thin-wall insulator structure, adverse effects such as insulator bulging and deformation are easily caused by the interference assembly mode of the convex ribs, and products with more contact parts are bonded, because of the existence of various factors such as small size of the connector, high node density, small gaps between rows and the like, the bonding process is difficult, the complexity is high, and the bonding efficiency is low.

The chinese utility model patent with granted publication number CN201369435Y as application date 2009.11.9 discloses an LRM electric connector module and a pin component thereof, wherein a back plate of an insulator of the connector module is provided with a guide groove and a window, the guide groove is used for being inserted and matched with a guide key and a latch key on the back of a pin fixing body of the pin component, and the window is used for being clamped and matched with a barb on the latch key to prevent the pin component from being separated from the insulator. However, the window is directly arranged on the back plate, so that the window is not easy to elastically deform, in order to ensure that the pin fixing bodies can be smoothly inserted into the insulator, the elastic deformation of all the elastic keys on the pin fixing bodies must reach a specific elastic deformation amount, if the elastic deformation amount of one of the elastic keys does not meet the requirement, the process of inserting the pin fixing bodies into the insulator is not smooth, and the assembly efficiency of the connector is affected, so that the connector has higher requirements on the manufacturing process of the pin fixing bodies.

Disclosure of Invention

The invention aims to provide a connector, which solves the problems that the connector is not smoothly assembled and the manufacturing process requirement on a pin fixing body is high in the prior art.

In order to achieve the purpose, the connector adopts the following technical scheme:

a connector includes:

the connector shell comprises a shell side plate, wherein the shell side plate is provided with a plurality of clamping windows which are sequentially arranged at intervals along the length direction of the shell side plate;

the contact component comprises a mounting base body and a contact element, wherein the contact element is fixed on the mounting base body, a latch is arranged on the mounting base body, and a clamping block is arranged on the latch;

the case side plate includes:

a plurality of elastic suspension arms are sequentially arranged at intervals along the length direction of the shell side plate, and each elastic suspension arm is provided with the clamping window;

defining the length direction of the shell side plate as the left-right direction, and defining that the contact component is inserted into the connector shell from bottom to top;

when the contact part is inserted into the connector shell from bottom to top, the clamping block on the elastic key pushes the elastic overhanging arm outwards to enable the elastic overhanging arm to swing outwards, and the elastic key and the elastic overhanging arm are elastically deformed until the clamping block is inserted into the clamping window in a clamping mode, so that the contact part is prevented from being separated from the connector shell.

The invention has the technical effects that: according to the connector, when the contact part is inserted into the connector shell, the clamping block of the latch on the contact part pushes the elastic cantilever arm on the side plate of the shell outwards, the latch connected with the clamping block is elastically deformed due to mutual pushing of the latch and the elastic cantilever arm in the process, and the elastic cantilever arm has elasticity, so that the elastic cantilever arm is elastically deformed outwards under the pushing of the latch, the space on the moving path of the clamping block is enlarged, the clamping block moves more smoothly, when the clamping block moves to the position of the clamping window on the elastic cantilever arm, the clamping block on the latch is clamped into the clamping window because the clamping block and the elastic cantilever arm are not pushed mutually any more, and the elastic deformation of the latch and the elastic cantilever arm disappears. Because the elastic suspension arm has elasticity, the contact part can be smoothly inserted into the connector shell in the process of assembling the connector, and because the elastic suspension arm and the latch can elastically deform, the requirement on the maximum deformation of the latch is low, and the requirement on the process of assembling the contact fixing piece is low as long as the contact part can be smoothly inserted into the connector shell after the elastic suspension arm and the latch are matched.

Furthermore, the lower end of the shell side plate extends from bottom to top to form dividing seams, the dividing seams are more than two and are sequentially arranged at intervals along the left-right direction, and any two adjacent dividing seams form one elastic overhanging arm on the shell side plate.

The beneficial effects are that: the dividing seams can increase the distance between the adjacent elastic overhanging arms, so that the roots of two adjacent edges of the adjacent elastic overhanging arms are not easy to tear when the elastic overhanging arms elastically deform.

Further, the bottom surface of the dividing seam is connected with the side wall of the seam in an arc transition mode.

The beneficial effects are that: the seam bottom surface and the seam lateral wall arc transition of dividing the seam meet, can avoid seam bottom surface and the meeting department of seam lateral wall to produce the burr, in addition, when elastic deformation takes place for the elasticity cantilever arm, the meeting department of seam bottom surface and seam lateral wall is difficult to take place to tear because of stress concentration.

Furthermore, the length of the dividing seam is the length in the vertical direction of the dividing seam, a long dividing seam area and a short dividing seam area are arranged on the shell side plate, the long dividing seam area and the short dividing seam area are alternately arranged one by one, at least one long dividing seam is arranged in each long dividing seam area, and at least one short dividing seam is arranged in each short dividing seam area.

The beneficial effects are that: the long dividing seams and the short dividing seams are arranged in a matched and alternating mode, the maximum elastic deformation amount of the elastic overhanging arm can be improved, and the problem that the structural strength of the elastic overhanging arm is low due to the fact that the overhanging amount is too large can be solved.

Further, the connector shell comprises a shell bottom plate, separation blocks are arranged on the shell bottom plate, the separation blocks extend along the front and back direction, the separation blocks are sequentially arranged on the left side and the right side at intervals, positioning slots are formed in the shell bottom plate and used for allowing the contact parts to be inserted, the positioning slots are sequentially arranged on the left side and the right side, and the front ends and the back ends of the positioning slots are respectively provided with the elastic overhanging arms.

The beneficial effects are that: the positioning slot can guide and limit the contact part, so that the insertion process of the contact part is smoother and more accurate, and the contact part is not easy to deflect after being inserted.

Furthermore, the contact parts and the positioning slots are in one-to-one corresponding insertion fit.

The beneficial effects are that: the contact parts and the positioning slots are correspondingly spliced one by one, so that the side walls of two adjacent separation blocks can guide and position the same contact part, and the guide and positioning effects of the positioning slots on the contact parts are improved.

Furthermore, each elastic suspension arm is provided with one clamping window.

The beneficial effects are that: the elastic suspension arms correspond to the clamping windows one to one, so that each elastic suspension arm is pushed by only one latch, the jacking force applied to a single elastic suspension arm is reduced, and the risk of damage of the elastic suspension arm due to overlarge jacking force is reduced.

Furthermore, the fixture block is provided with a fixture block bottom plane, the latch is provided with a latch bottom plane, the fixture block bottom plane is flush with the latch bottom plane, the fixture block is clamped into the clamping window, and the fixture block bottom plane and the elastic bottom plane are both used for being matched with the corresponding clamping window in a blocking mode.

The beneficial effects are that: the top plane of the clamping block is flush with the top plane of the latch, so that the area of a blocking surface for blocking the contact component and the clamping window is increased, the clamping block is not easy to separate from the clamping window, and the contact component is more reliably fixed in the connector shell.

Furthermore, the fixture block is provided with an inclined surface, the inclined surface is inclined from top to bottom in the direction away from the latch, and the inclined surface is used for pushing the elastic suspension arm outwards.

The beneficial effects are that: due to the existence of the inclined plane on the clamping block, the elastic overhanging wall can be slowly elastically deformed in the process of inserting the contact component into the connector, and the risk of damage of the elastic overhanging wall due to sudden increase of elastic deformation is reduced.

Further, the contact is a pin contact or a socket contact.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the connector of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A in FIG. 2;

FIG. 4 is a schematic structural view of the pin assembly of FIG. 1;

FIG. 5 is a schematic structural view of the pin member of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the connector housing of FIG. 1;

FIG. 7 is a schematic view of the connector housing of FIG. 6 from another perspective;

fig. 8 is a partial enlarged view at B in fig. 7;

FIG. 9 is a schematic view of the bottom of the connector housing of FIG. 6;

fig. 10 is a partial enlarged view at C in fig. 9;

in the drawings: 1-a connector housing; 11-shell side plate; 12-a housing floor; 121-a spacer block; 122-positioning slots; 13-dividing the seam; 131-long dividing seam; 132-short dividing slit; 14-an elastic cantilever arm; 15-clamping the window; 2-a pin member; 21-mounting a substrate; 22-pin contact; 23-mounting the base body; 24-a latch; 241-latch bottom plane; 25-avoiding space; 26-a fixture block; 261-fixture block bottom plane; 262-fixture block inclined plane.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to fig. 1 and an embodiment. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The features and properties of the present invention are described in further detail below with reference to examples.

Embodiment 1 of the connector of the present invention:

as shown in fig. 1 to 3, the connector includes a connector housing 1 and a contact member, the contact member and the connector housing are inserted and assembled together, the connector in this embodiment is a plug connector, and the contact member is a pin member 2.

As shown in fig. 4 and 5, the pin member 2 includes a mounting base 21 and pin contacts 22 fixed to the mounting base 21, and six pin contacts 22 are sequentially inserted at intervals in the longitudinal direction of the mounting base 21. The mounting base body 21 comprises a mounting base body main body 23 and two latch keys 24, the latch keys 24 are respectively arranged at two ends of the mounting base body main body 23 in a suspending mode, an avoiding space 25 is formed between the latch keys 24 and the mounting base body main body 23, the avoiding space 25 is used for avoiding the latch keys 24 which are elastically deformed due to extrusion, and a clamping block 26 is arranged on the side face, far away from the avoiding space 25, of each latch key 24. In other embodiments, the connector is a receptacle connector, the contact member is a receptacle member, and the mounting base of the contact member holds a receptacle contact.

As shown in fig. 6, the connector housing 1 is a thin-walled insulator structure, the connector housing 1 includes a housing side plate 11 and a housing bottom plate 12, the length direction of the housing side plate 11 is defined as the left-right direction, the thickness direction of the housing side plate 11 is defined as the front-back direction, the thickness direction of the housing bottom plate 12 is the up-down direction, the upper end of the connector housing 1 is an annular groove, the front-back groove wall of the annular groove forms the housing side plate 11, the groove bottom wall of the annular groove forms the housing bottom plate 12, the left and right ends of the connector housing are respectively provided with a fixing edge, the fixing edge is provided with a mounting hole, and the mounting hole is used for mounting.

As shown in fig. 6 to 8, the lower end of the side plate 11 of the housing is provided with dividing slits 13 arranged at intervals in sequence along the left-right direction, the dividing slits 13 extend from bottom to top, the solid part between two adjacent dividing slits 13 forms an elastic overhanging arm 14, each elastic overhanging arm 14 is provided with a clamping window 15, the clamping window 15 is used for clamping and matching with a clamping block 26 on a latch 24, the bottom plate 12 of the housing is provided with insulating jacks corresponding to the pin contacts 22 one by one, and the insulating jacks are used for inserting the pin contacts 22 of the pin component 2. When the pin member 2 is inserted into the connector housing 1 from bottom to top, the latch 26 on the latch 24 pushes the elastic cantilever 14 outwards, so that the elastic cantilever 14 swings outwards, and in the process, the latch 24 and the elastic cantilever 14 connected with the latch 26 elastically deform in opposite directions, so that the space on the moving path of the latch 24 and the latch 26 is increased, and the process of inserting the pin member 2 into the connector housing 1 is smoother. When the latch 24 moves to the position of the latch window 15, the latch 26 and the elastic cantilever arm 14 are not pushed against each other, and the elastic deformation of the latch 24 and the elastic cantilever arm 14 begins to disappear, so that the latch 26 on the latch 24 is latched into the latch window 15, thereby preventing the pin member 2 from being separated from the connector housing 1.

In order to avoid tearing of the slit bottom surface and the slit side wall of the dividing slit 13 due to stress concentration when the elastic cantilever arm is elastically deformed, in the present embodiment, the slit bottom surface and the slit side wall of the dividing slit 13 are connected in an arc transition manner. In addition, adopt the arc transition to meet and compare with adopting the right angle transition, not only can avoid appearing the tearing condition of dividing seam 13, can also reduce the production of burr in the dividing seam 13.

Since the larger the overhanging amount of the elastic overhanging arm 14 is, the larger the maximum elastic deformation amount of the elastic overhanging arm 14 is, and further, the smoother the insertion of the pin member 2 and the connector housing 1 is, the length of the dividing slit is the length of the dividing slit in the up-down direction, therefore theoretically, the length of the dividing slit 13 is lengthened, that is, the overhanging length of the elastic overhanging arm 14 can be increased to increase the smooth degree of the insertion, but the longer the dividing slit 13 is, accordingly, the structural strength of the whole housing side plate 11 is worse. Therefore, in order to improve the smoothness of the insertion of the pin member 2 and the connector housing 1 and ensure that the housing side plate 11 has high structural strength, as shown in fig. 8, in the present embodiment, the housing side plate 11 is provided with a long parting line region and a short parting line region, the long parting line region and the short parting line region are alternately arranged one by one, specifically, one long parting line 131 is arranged in each long parting line region, and two short parting lines 132 are sequentially arranged in each short parting line region at intervals, that is, an arrangement manner of "001001001001 … …" is adopted, wherein "0" represents the short parting line 132, and "1" represents the long parting line 131, and mechanical simulation results show that the arrangement manner greatly improves the smoothness of the insertion of the pin member and the connector, and at the same time, the housing side plate 11 can have high structural strength. In other embodiments, one long slit 131 is disposed in each long slit region, and one short slit 132 is disposed in each short slit region at intervals in turn, that is, in the arrangement of "01010101 … …", where "0" represents a short slit and "1" represents a long slit.

As shown in fig. 9 and 10, on the housing bottom plate 12 of the connector housing 1, there are further provided separating blocks 121 extending in the front-rear direction and arranged at intervals in the left-right direction in sequence, each of the separating blocks 121 has a separating block side wall on each of the left and right sides, the side walls of the connector housing 1 and the separating blocks 121 form a positioning insertion groove 122 on the housing bottom plate 12, and the insulating insertion holes are provided on the groove bottom of the positioning insertion groove 122. When the contact pin component 2 is inserted into the insulator housing 1, the positioning slot 122 can guide and position the contact pin component 2, so that the insertion process of the contact pin component 2 is smoother and more accurate, and the contact pin component is not easy to deflect and shake after being inserted.

As shown in fig. 4 and 5, the latch 26 has a latch bottom plane 261, the latch 24 has a latch bottom plane 241, and after the latch 26 is engaged with the engaging window 15, the latch bottom plane 261 of the latch 26 is blocked with the engaging window 15 so as to prevent the plug member 2 from being separated from the connector housing 1, in order to more reliably fix the plug member 2 in the connector housing 1, in this embodiment, the latch bottom plane 261 is flush with the latch top plane 241, so that the area of the blocking surface for blocking the contact member 2 with the engaging window 15 is increased, and the latch is not easily separated from the engaging window.

As shown in fig. 5, in the present embodiment, the latch 26 has a latch inclined plane 262 inclined from top to bottom in a direction away from the latch 24, and due to the presence of the latch inclined plane 262 of the latch 26, the elastic deformation amount of the elastic cantilever arm 14 can be gradually increased in the process of inserting the pin member 2 into the connector housing, so as to reduce the risk of damage to the elastic cantilever arm 14 due to the sudden increase of the elastic deformation amount.

In assembling the pin members 2 and the connector housing 1, the pin contacts 22 of the pin members 1 are first inserted into the insulating insertion holes on the groove bottoms of the positioning insertion grooves 122 one by one from the bottom up, and then inserted further upward at an appropriate speed, in the process, the latch 26 on the latch 24 will start to press the elastic cantilever 14 outwards, and both the latch 24 and the elastic cantilever 14 will deform elastically, so that the space on the moving path of the latch 26 is increased and the insertion of the pin member 2 can be performed more smoothly, since the latch 26 has the latch inclined surface 262 inclined from the top to the bottom in a direction away from the latch 24, the elastic deformation amount of the elastic cantilever arm 14 can be gradually increased rather than abruptly increased, in this process, the mounting base body 23 of the pin member 2 is gradually inserted into the positioning insertion groove 122 on the housing bottom plate 12, so that the positioning insertion groove 122 can guide and limit the pin member 2. When the clamping block 26 moves to the position of the clamping window 15 on the elastic overhanging arm 14, the clamping block 26 and the elastic overhanging arm 14 are not pushed against each other, the elastic deformation of the latch 24 and the elastic overhanging arm 14 begins to disappear, so that the clamping block 26 on the latch 24 is clamped into the clamping window 15, and the pin component 2 can be prevented from being separated from the connector housing 1, meanwhile, the pin component 2 is completely inserted into the positioning slot 122, and the pin component 2 is not easy to shake in the connector housing 1 due to the limitation of the positioning slot 122, so that the insertion process of the single pin component 2 is completed, and after all the pin components 2 are inserted into the connector housing 1, the assembly process of the pin connector is completed. Because the elastic suspension arm has elasticity, the contact part can be smoothly inserted into the connector shell in the process of assembling the connector, and because the elastic suspension arm and the latch can elastically deform, the requirement on the maximum deformation of the latch is low, and the requirement on the process of assembling the contact fixing piece is low as long as the contact part can be smoothly inserted into the connector shell after the elastic suspension arm and the latch are matched.

Embodiment 2 of the connector of the present invention:

the connector in this embodiment differs from the connector in embodiment 1 described above only in that: in the embodiment 1, the groove bottom and the groove wall of the dividing slit are in arc transition connection, and in the embodiment, the slit bottom and the slit side wall of the dividing slit are in right-angle or obtuse-angle transition connection.

Embodiment 3 of the connector of the present invention:

the connector in this embodiment differs from the connector in embodiment 1 described above only in that: the dividing slits in example 1 include long dividing slits and short dividing slits, and in this example, all the dividing slits are the same length.

Embodiment 4 of the connector of the present invention:

the connector in this embodiment differs from the connector in embodiment 1 described above only in that: the fixture block in embodiment 1 has an inclined plane inclined from top to bottom in a direction away from the latch, and in this embodiment, the fixture block is a cuboid fixture block without an inclined plane, and when the pin component is inserted into the connector housing from bottom to top, the elastic overhanging arm is pushed outwards by the surface of the fixture block attached to the elastic overhanging arm.

It is to be understood that the above examples are illustrative only for the purpose of clarity of description and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention. The protection scope of the present invention is defined by the claims, and all structural changes equivalent to the content of the description and drawings of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A connector, comprising:

characterized in that, the casing curb plate includes:

2. The connector of claim 1, wherein the lower end of the shell side plate extends from bottom to top to form a dividing slit, the dividing slit has more than two dividing slits and is sequentially arranged at intervals along the left-right direction, and any two adjacent dividing slits form one elastic cantilever arm on the shell side plate.

3. The connector of claim 2, wherein the slot floor and slot sidewall transitions of the split slot.

4. The connector according to claim 3, wherein the length of the dividing slit is a length in an up-down direction of the dividing slit, the housing side plate is provided with a long dividing slit region and a short dividing slit region, the long dividing slit region and the short dividing slit region are alternately arranged one by one, each long dividing slit region is provided with at least one long dividing slit, and each short dividing slit region is provided with at least one short dividing slit.

5. The connector according to any one of claims 1 to 4, wherein the connector housing includes a housing bottom plate, a plurality of partition blocks are disposed on the housing bottom plate, each partition block extends in a front-rear direction, the plurality of partition blocks are sequentially arranged in a left-right direction at intervals, the connector housing and the partition blocks form a positioning slot on the housing bottom plate, the positioning slot is used for the contact member to be inserted, the plurality of positioning slots are sequentially arranged in the left-right direction, and the front end and the rear end of each positioning slot are respectively provided with the elastic cantilever arm.

6. The connector of claim 5, wherein the contact members are in one-to-one mating engagement with the retention slots.

7. A connector according to any one of claims 1 to 4, wherein one said snap-fit window is provided on each resiliently cantilevered arm.

8. The connector according to any one of claims 1 to 4, wherein the latch has a latch bottom plane, the latch bottom plane is flush with the latch bottom plane, and after the latch is latched into the latching window, the latch bottom plane and the elastic bottom plane are both adapted to be engaged with the corresponding latching window in a retaining manner.

9. The connector according to any one of claims 1 to 4, wherein the latch has a slope, the slope is inclined from top to bottom in a direction away from the latch, and the slope is used for pushing the elastic cantilever arm outwards.

10. The connector according to any one of claims 1 to 4, wherein the contact is a pin contact or a socket contact.