TWM657847U - Homopolar vector rotation motor - Google Patents

Abstract

A homopolar vector rotary motor includes: a power supply control unit, a stator and a rotor; wherein a plurality of electromagnets are arranged along the circumference of the stator body of the stator, and the electromagnets are intermittently powered by the power supply control unit to generate electromagnetic force; a plurality of magnets are arranged along the circumference of the rotor body of the rotor, and a central axis is coaxially arranged through the rotor body and the stator body; when the rotor body rotates along the central axis until the positions of the magnets correspond to the When the electromagnet is in contact with the electromagnet, the electromagnet is energized to generate an electromagnetic force equal to the magnetism of the corresponding magnet, thereby pushing the rotor body to continue rotating with the repulsive magnetic force; when the rotor body rotates and the position of the magnets no longer corresponds to the electromagnet, the electromagnet is de-energized and does not generate an electromagnetic force, allowing the rotor body to continue rotating with rotational inertia until the magnets correspond to the electromagnet again, and then the electromagnet is energized again to generate an electromagnetic force to push the rotor body to continue rotating, and the cycle continues.

Description

Homopolar vector rotation motor

This invention relates to a motor, in particular a direct current driven, low energy consumption, high torque homopolar vector rotary motor.

There are many types of motors. In terms of basic structure, they are mainly composed of a stator and a rotor. The stator is stationary in space, while the rotor can rotate around the axis and is supported by bearings. There is a certain air gap (air gap) between the stator and the rotor to ensure that the rotor can rotate freely.

Motors can be divided into DC motors and AC motors, and further divided into pulse motors, synchronous motors, induction motors, reversible motors, stepper motors, servo motors, linear motors, etc. Among them, the principle of DC motors is that the stator does not move, and the rotor moves in the direction of the force generated by the interaction. The AC motor is that the stator winding coil is passed through alternating current to generate a rotating magnetic field, which attracts the rotor to rotate together.

For a common three-phase motor, the three-phase AC is composed of three ACs with a phase difference of 120 degrees and equal magnitude and frequency. Under the action of the magnetic field of the wound stator, according to Fleming's right-hand rule, the central conductor generates an induced current. As the AC power changes, the magnetic poles rotate continuously. The movement direction of the conductor in the moving magnetic field will be consistent with the magnetic field, so the rotor rotates accordingly.

Most household AC power sources are single-phase alternating current. Since single-phase alternating current has only one set of currents whose magnitude and direction change over time, the current magnetic field cannot be used directly to drive the rotor. Therefore, compared to the three-phase induction motor which only has a winding for operation, the single-phase induction motor requires an additional starting winding, and the starting winding is 90 degrees ahead of the running winding phase to ensure the rotor movement.

As we know, no matter the motor is three-phase or single-phase, its three coils or single coils are fully energized to drive the rotor.

The purpose of this invention is to provide a DC-driven, low-energy, high-torque homopolar vector rotary motor.

The homopolar vector rotary motor provided by the invention includes: a power supply control unit; a stator having a stator body and a plurality of electromagnets arranged at equal angles along the circumference of the stator body, the stator body being fixedly arranged and movably passed through by a central axis, the electromagnets being electrically connected to the power supply control unit; and a rotor having a rotor body and a plurality of magnets arranged at equal angles along the circumference of the rotor body, the rotor body being fixed to the central axis, wherein the rotor body rotates relative to the stator body along the central axis until the positions of the magnets correspond to the electromagnets, and the power supply control unit controls the electromagnets. The magnets are energized so that the electromagnets generate electromagnetic forces that are the same as the magnetism of the magnets, thereby pushing the rotor body to continue rotating with the repulsive magnetic forces, and wherein, when the rotor body rotates relative to the stator body so that the positions of the magnets do not correspond to the electromagnets, the power supply control unit controls the electromagnets to be de-energized so that the electromagnets do not generate electromagnetic forces. At this time, the rotor body continues to rotate with rotational inertia until the positions of the magnets correspond to the electromagnets again, and the power supply control unit controls the electromagnets to be energized again so that the electromagnets generate electromagnetic forces and push the rotor body to continue rotating, and so on. This invention reduces power consumption by 1/2 by using intermittent power supply and repulsive magnetic force to drive the rotor to rotate.

In one embodiment of the invention, the electromagnets on the stator body can be arranged so that when the electromagnets are energized, each of the electromagnets generates electromagnetic forces of opposite polarities on two opposite sides of the stator body in the radial direction; and wherein the magnets disposed on the rotor body include a plurality of first magnets located on the radial outer side of the rotor body and a plurality of second magnets located on the radial inner side of the rotor body, and the first magnets and the second magnets respectively have magnetic forces that repel the opposite sides of the electromagnets. This invention generates electromagnetic force on opposite sides of the electromagnet, and uses a first magnet on the radially outer side and a second magnet on the radially inner side to amplify the torque by 2 times, achieving approximately 1/4 of the power consumption.

In one embodiment of the invention, the rotor body may be provided with an outer wall located radially outward and an inner wall located radially inward, the first magnets are arranged on the outer wall, and the second magnets are arranged on the inner wall; and the outer periphery of the stator body may be provided with a protruding wall, the first electromagnets are arranged on the outer side of the protruding wall, and the second electromagnets are arranged on the inner side of the protruding wall, and the protruding wall is arranged between the outer wall and the inner wall.

In one embodiment of the invention, the rotor body may include a first rotor body and a second rotor body separated from each other and coaxially fixed to the central axis, the outer periphery of the first rotor body is formed with an outer side wall, the outer diameter of the second rotor body is smaller than the inner diameter of the outer side wall, the first magnets are arranged at the end edge of the outer side wall, and the second magnets are arranged at the outer periphery of the second rotor body; and wherein the first electromagnets are arranged at the outer periphery of the stator body, the second electromagnets are arranged at the inner periphery of the stator body, and the stator body is arranged between the first rotor body and the second rotor body.

Preferably, the first magnet and the second magnet have a side facing the electromagnet formed into an inclined surface, and the first electromagnet and the second electromagnet have a side facing the inclined surface formed into a flat surface. With this structure, when the rotor rotates relative to the stator, the first and second magnets gradually shorten their distances and approach the electromagnet, so that when the distance between them is the shortest, the electromagnet pushes the first and second magnets to drive the rotor body to rotate.

In one embodiment of the present invention, the rotor body may include a first rotor body and a second rotor body which are separated from each other and arranged on opposite sides of the fixed rotor body in the axial direction and coaxially fixed to the central axis; wherein the magnets include a plurality of first magnets disposed on the first rotor body and a plurality of second magnets disposed on the second rotor body; and wherein, when the electromagnets are energized, each of the electromagnets generates an electromagnetic force on opposite sides of the rotor body in the axial direction, and the first magnets and the second magnets have magnetic forces that repel the opposite sides of the electromagnets.

The electromagnets can be arranged into a plurality of rings along different diameter positions of the stator body; the first magnets can be arranged into a plurality of rings along different diameter positions of the first rotor body, so that the first magnets correspond to one side of the electromagnets; and the second magnets can be arranged into a plurality of rings along different diameter positions of the second rotor body, so that the second magnets correspond to the other side of the electromagnets.

10: Power supply control unit

20: Stator

201: Stator body

2011: Protruding Wall

202: Magnet

202A: First Electromagnet

2021A: Plane

202B: Second electromagnetic magnet

30: Rotor

301: Rotor body

301A, 301C: First rotor body

301B, 301D: Second rotor body

3011, 3011A: Outer wall

3012:Inner wall

302A: First magnet

3021A: Inclined surface

302B: Second magnet

40: Center axis

50: Shell

60: Conductive rotor

61: Conductive part

62: Insulation part

P1: First point

P2: The second point

P3: The third point

P4: The fourth point

Figure 1 is a schematic plan view showing the structure of the first embodiment of the present invention; Figure 2 is a schematic plan view along the II-II direction of Figure 1; Figure 3 is a partial enlarged view of the A area of Figure 2; Figure 4 is a schematic view showing the relationship between the electromagnetic iron of Figure 3 pushing the magnet to rotate the rotor; Figure 5 is a schematic plan view showing the state where the first and second magnets on the rotor body of Figure 1 do not have corresponding electromagnetic irons; Figure 6 is a schematic plan view showing the structure of the second embodiment of the present invention; Figure 7 is a schematic plan view showing the structure of the third embodiment of the present invention; and Figure 8 is a schematic plan view showing the axial end surface of the rotor of Figure 7.

The following is a more detailed description of the implementation of this creation with diagrams and component symbols, so that those who are familiar with the technology can implement it after reading this manual.

The terms "first", "second", etc. described in this article are used to distinguish components of the same or similar nature, and are not used to limit the order, sequence, size, etc. of the components.

《Implementation Example 1》

As shown in FIG. 1 and FIG. 2 , the homopolar vector rotary motor provided by the invention includes: a power supply control unit 10, a stator 20 and a rotor 30. The stator 20 has a disc-shaped stator body 201 and a plurality of electromagnets 202 arranged at equal angles along the circumference of the stator body 201. The stator body 201 is fixedly arranged in a housing 50 and cannot rotate, and a central shaft 40 passes through the stator body 201. A bearing is arranged between the central shaft 40 and the stator body 201 so that the central shaft 40 can rotate freely relative to the stator body 201. The central shaft 40 is also arranged in the housing 50 in cooperation with the bearing so that the central shaft 40 can rotate freely on the housing 50, but the stator body 201 cannot rotate because it is fixed. The electromagnets 202 are electrically connected to the power supply control unit 10, and the power supply control unit 10 controls the intermittent supply of direct current to the electromagnets 202 to make the electromagnets 202 generate magnetism. Specifically, the electromagnets 202 are arranged on the stator 20 in such a way that when the power supply control unit 10 supplies direct current to the electromagnets 202 and energizes them, each of the electromagnets 202 generates electromagnetic forces of opposite polarities on opposite sides of the stator body 201 in the radial direction.

More specifically, the electromagnets 202 may include a plurality of first electromagnets 202A and second electromagnets 202B; a protruding wall 2011 may be formed on one side of the outer periphery of the stator body 201, and the first electromagnets 202A are arranged at equal angles along the circumference on the outer side of the protruding wall 2011, and the second electromagnets 202B are arranged at equal angles along the circumference on the inner side of the protruding wall 2011. The first electromagnets 202A and the second electromagnets 202B are connected to the power supply control unit 10 by wires, and the wires may be electrically connected to the first electromagnets 202A and the second electromagnets 202B through a channel (not shown) arranged in the stator body 201.

The rotor 30 has a disc-shaped rotor body 301. A plurality of first magnets 302A are arranged at equal angles along the circumference of the rotor body 301 toward the outside of the diameter. A plurality of second magnets 302B are arranged at equal angles along the circumference of the rotor body 301 toward the inside of the diameter. The first magnet 302A and the second magnet 302B have the same magnetic properties as the electromagnetic forces generated by the opposite sides of the electromagnetic iron 202, that is, the first magnet 302A has a magnetic force that repels the electromagnetic force generated by the first electromagnetic iron 202A, and the second magnet 302B has a magnetic force that repels the electromagnetic force generated by the second electromagnetic iron 202B. More specifically, the rotor body 301 is formed with an outer wall 3011 located on the radially outer side thereof and an inner wall 3012 located on the radially inner side thereof, the first magnets 302A are disposed on the outer wall 3011, and the second magnets 302B are disposed on the inner wall 3012; the rotor body 301 is fixed to the central axis 40, so that the rotor body 301 can rotate freely along the central axis 40. Furthermore, the rotor body 301 and the stator body 201 are coaxially arranged around the central axis 40, and the protruding wall 2011 is located between the outer wall 3011 and the inner wall 3012, and the orbital position of the first magnet 302A rotating along the circumference corresponds to the virtual circumferential position of the first electromagnet 202A, and the orbital position of the second magnet 302B rotating along the circumference corresponds to the virtual circumferential position of the second electromagnet 202B.

As shown in FIG3 , in a preferred embodiment of the present invention, the first electromagnet 202A and the first magnet 302A face each other on a plane 2021A and an inclined plane 3021A, respectively, wherein the opposite ends of the plane 2021A are the first point P1 and the second point P2 of equal height, respectively, and the opposite ends of the inclined plane 3021A are the third point P3 and the fourth point P4 of unequal height, that is, when the plane 2021A and the inclined plane 3021A face each other, the distance between the first point P1 and the third point P3 is smaller than the distance between the second point P2 and the fourth point P4; with this structural form, as shown in FIG4 , when the rotor body 301 rotates clockwise, When the first magnet 302A moves toward the first electromagnet 202A, the fourth point P4 of the inclined plane 3021A gradually decreases in distance from the first point P1 of the plane 2021A in the direction toward the third point P3, so that the first magnet 302A is subjected to a relatively small repulsive force and can smoothly move to the position of the first electromagnet 202A, until the distance between the third point P3 of the inclined plane 3021A and the first point P1 of the plane 2021A is the smallest, the electromagnetic force generated by the first electromagnet 202A is sufficient to repel the first magnet 302A in the clockwise direction and rotate it (as shown in FIG. 4 ), so that the rotor body 301 continues to rotate without stopping. Similarly, the second electromagnetic iron 202B and the second electromagnetic iron 302B also have the same plane and inclined surface as the above-mentioned on the surface facing each other, which also has the same effect as the above-mentioned, and the repeated description is omitted here.

The following is an explanation of the operation of the homopolar vector rotary motor of the present invention: The power supply control unit 10 of the present invention supplies direct current to each electromagnet 202 in an intermittent power supply mode to drive the rotor body 301 to rotate. More specifically, as shown in FIG. 5 , when the rotor body 301 rotates relative to the stator body 201 along the central axis 40, it must wait until the position of each first magnet 302A corresponding to the first electromagnet 202A is reached. When the second magnet 302B corresponds to the position of the second electromagnet 202B, the power supply control unit 10 supplies direct current to each of the first electromagnet 202A and the second electromagnet 202B through a preset computer program control, so that the first electromagnet 202A and the second electromagnet 202B respectively generate electromagnetic forces that are the same as the magnetic properties of the first magnet 302A and the second magnet 302B, thereby pushing the The rotor body 301 continues to rotate; when the rotor body 301 rotates relative to the stator body 201 so that each first magnet 302A does not correspond to the position of the first electromagnet 202A and the second magnet 302B does not correspond to the position of the second electromagnet 202B, the power supply control unit 10 interrupts the supply of direct current to each first electromagnet 202A and the second electromagnet 202B through a pre-set computer program control. Electromagnetic force is generated, and the rotor body 301 continues to rotate with rotational inertia until the positions of the first magnets 302A and the second magnets 302B correspond to the first electromagnetic magnets 202A and the second electromagnetic magnets 202B respectively. The power supply control unit 10 then controls the first electromagnetic magnets 202A and the second electromagnetic magnets 202B to be energized to generate electromagnetic force to push the rotor body 301 to continue rotating, and the cycle continues.

By using the homopolar vector rotating motor of the invention, since the power supply control unit 10 supplies DC power in an intermittent manner, about 1/2 of the power consumption can be saved, and the first electromagnetic iron 202A and the second electromagnetic iron 202B jointly repel the first magnet 302A and the second magnet 302B to drive the rotor body 301 to rotate, the central shaft 40 can obtain double the torque output.

《Implementation Example 2》

FIG6 shows a second embodiment of the homopolar vector rotary motor of the present invention, wherein the rotor body includes a first rotor body 301A and a second rotor body 301B which are separated from each other and coaxially fixed to the central shaft 40, the outer periphery of the first rotor body 301A is formed with an outer side wall 3011A, the outer diameter of the second rotor body 301B is smaller than the inner diameter of the outer side wall 3011A, a plurality of first magnets 302A are circumferentially arranged at the end edge of the outer side wall 3011A, and a plurality of second magnets 302B are circumferentially arranged at the outer periphery of the second rotor body 301B. A plurality of first electromagnets 202A are disposed on the outer periphery of the stator body 201, and a plurality of second electromagnets 202B are disposed on the inner periphery. The stator body 201 is fixed to the housing 50 and disposed between the first rotor body 301A and the second rotor body 301B, so that the orbital position of the first magnet 302A along the circumferential rotation corresponds to the virtual circumferential position of the first electromagnet 202A, and the orbital position of the second magnet 302B along the circumferential rotation corresponds to the virtual circumferential position of the second electromagnet 202B.

Similarly, the power supply control unit 10 supplies direct current to each electromagnet in an intermittent power supply mode to drive the first rotor body 301A to rotate. That is, when the first rotor body 301A and the second rotor body 301B rotate relative to the stator body 201 along the central axis 40, the electric current must be turned on when each first magnet 302A corresponds to the position of the first electromagnet 202A and the second magnet 302B corresponds to the position of the second electromagnet 202B. The power supply control unit 10 supplies direct current to each of the first electromagnet 202A and the second electromagnet 202B through a pre-set computer program control, so that the first electromagnet 202A and the second electromagnet 202B respectively generate electromagnetic forces that are the same as the magnetic forces of the first magnet 302A and the second magnet 302B, thereby pushing the first rotor body 301A and the second rotor body 301B to continue to rotate synchronously with the repulsive magnetic forces; and when the first rotor body 30 When the first rotor body 301A and the second rotor body 301B rotate relative to the stator body 201 so that each first magnet 302A does not correspond to the position of the first electromagnet 202A and the second magnet 302B does not correspond to the position of the second electromagnet 202B, the power supply control unit 10 interrupts the supply of current to each first electromagnet 202A and the second electromagnet 202B through a pre-set computer program control without generating electromagnetic force. At this time, the first rotor body 301A and The second rotor body 301B continues to rotate with rotational inertia until the positions of the first magnets 302A and the second magnets 302B correspond to the first electromagnets 202A and the second electromagnets 202B respectively, and the power supply control unit 10 controls the first electromagnets 202A and the second electromagnets 202B to be energized to generate electromagnetic force to push the first rotor body 301A and the second rotor body 301B to continue rotating, and the cycle continues.

《Implementation Example 3》

FIG. 7 and FIG. 8 show a third embodiment of the homopolar vector rotary motor of the present invention, wherein the rotor body comprises a first rotor body 301C and a second rotor body 301D which are separately arranged on opposite sides of a fixed rotor body 301 in the axial direction of the central axis 40 and coaxially fixed to the central axis 40; and a second rotor body 301C and a second rotor body 301D which are respectively arranged in a plurality of rings at different diameter positions of the first rotor body 301C and the second rotor body 301D. a first magnet 302A and a second magnet 302B; and the first electromagnetic magnets 202A and the second electromagnetic magnets 202B are respectively arranged in a plurality of rings at different diameter positions of the stator body 201, so that the first magnets 302A located in the first rotor body 301C and the second rotor body 301D correspond to the two sides of the first electromagnetic magnets 202A, respectively, and the second magnets 302B correspond to the two sides of the second electromagnetic magnets 202B, respectively. In addition, the central shaft 40 is also provided with a conductive rotor 60, and the circumferential surface of the conductive rotor 60 is formed with a plurality of conductive parts 61 arranged at equal intervals, and the adjacent conductive parts 61 are separated by insulating parts 62, and the angle between the adjacent conductive parts 61 is equal to the angle between the adjacent first magnets 302A or the angle between the adjacent second magnets 302B, and the conductive part 61 is electrically connected to each first electromagnet 202A and the second electromagnet 202B by a wire; the power supply control unit 10 is connected to a power line, and a conductive rod is provided on the power line, and the conductive rod contacts the circumferential surface of the conductive rotor 60.

According to the third embodiment, when the first rotor body 301C and the second rotor body 301D rotate along with the central axis 40, the conductive rotor 60 also rotates synchronously. When the first rotor body 301C and the second rotor body 301D correspond to the first magnet 302A and the second magnet 302B, the conductive rod also contacts the conductive portion 61 of the conductive rotor 60, so that the power supply control unit 10 passes the DC power through the conductive portion 61. To the first electromagnetic irons 202A and the second electromagnetic irons 202B, so that each of the first electromagnetic irons 202A and the second electromagnetic irons 202B in the axial direction generates electromagnetic forces of opposite polarity, and the first magnets 302A and the second magnets 302B have magnetic forces that repel the first electromagnetic irons 202A and the second electromagnetic irons 202B, respectively, thereby driving the first rotor body 301C and the second rotor body 301D to rotate, so that the central shaft 40 outputs torque.

The above is only used to explain the best implementation of this creation, and is not intended to limit this creation in any form. Therefore, any modification or change of this creation made under the same creative spirit should still be included in the scope of protection intended by this creation.

10: Power supply control unit

20: Stator

201: Stator body

2011: Protruding Wall

202: Magnet

202A: First Electromagnet

202B: Second electromagnetic magnet

30: Rotor

301: Rotor body

3011: Outer wall

3012:Inner wall

302A: First magnet

302B: Second magnet

40: Center axis

50: Shell

Claims (7)

A homopolar vector rotary motor comprises: a power supply control unit; a stator having a stator body and a plurality of electromagnets arranged at equal angles along the circumference of the stator body, the stator body being fixedly arranged and movably passed through by a central axis, the electromagnets being electrically connected to the power supply control unit; and a rotor having a rotor body and a plurality of magnets arranged at equal angles along the circumference of the rotor body, the rotor body being fixed to the central axis, wherein the rotor body rotates relative to the stator body along the central axis until the positions of the magnets correspond to the electromagnets, and the power supply control unit controls the electromagnets to rotate. The magnets are energized so that the electromagnets generate electromagnetic forces that are the same as the magnetism of the magnets, thereby pushing the rotor body to continue rotating with the repulsive magnetic forces, and wherein, when the rotor body rotates relative to the stator body so that the positions of the magnets do not correspond to the electromagnets, the power supply control unit controls the electromagnets to be de-energized so that the electromagnets do not generate electromagnetic forces, and the rotor body continues to rotate with rotational inertia until the positions of the magnets correspond to the electromagnets again, and the power supply control unit controls the electromagnets to be energized again so that the electromagnets generate electromagnetic forces and push the rotor body to continue rotating, and the cycle continues. The homopolar vector rotating motor as described in claim 1, wherein when the electromagnets are energized, each of the electromagnets generates electromagnetic forces of opposite polarity on opposite sides of the stator body in the radial direction; and wherein the magnets disposed on the rotor body include a plurality of first magnets located on the radially outer side of the rotor body and a plurality of second magnets located on the radially inner side of the rotor body, and the first magnets and the second magnets respectively have magnetic forces that repel the opposite sides of the electromagnets. A homopolar vector rotating motor as described in claim 2, wherein the rotor body is formed with an outer wall located radially outward and an inner wall located radially inward, the first magnets are arranged on the outer wall, and the second magnets are arranged on the inner wall; and each of the electromagnets includes a first electromagnet and a second electromagnet, wherein a protruding wall is formed on the outer periphery of the stator body, the first electromagnets are arranged on the outer side of the protruding wall, and the second electromagnets are arranged on the inner side of the protruding wall, and the protruding wall is arranged between the outer wall and the inner wall. The homopolar vector rotating motor as described in claim 2, wherein the rotor body includes a first rotor body and a second rotor body separated from each other and coaxially fixed to the central axis, the outer periphery of the first rotor body forms an outer wall, the outer diameter of the second rotor body is smaller than the inner diameter of the outer wall, the first magnets are arranged at the end edge of the outer wall, and the second magnets are arranged at the outer periphery of the second rotor body; and each of the electromagnets includes a first electromagnet and a second electromagnet, wherein the first electromagnets are arranged at the outer periphery of the stator body, the second electromagnets are arranged at the inner periphery of the stator body, and the stator body is arranged between the first rotor body and the second rotor body. The isopolar vector rotating motor as described in claim 3 or 4, wherein the first magnet faces the first electromagnet on one side and the second magnet faces the second electromagnet on one side both form an inclined surface, and the first electromagnet faces the inclined surface of the first magnet on one side and the second electromagnet faces the inclined surface of the second magnet on one side both form a plane. A homopolar vector rotating motor as described in claim 1, wherein the rotor body includes a first rotor body and a second rotor body which are separated from each other and arranged on opposite sides of the fixed rotor body in the axial direction and coaxially fixed to the central axis; wherein the magnets include a plurality of first magnets disposed on the first rotor body and a plurality of second magnets disposed on the second rotor body; and wherein, when the electromagnets are energized, each of the electromagnets generates an electromagnetic force on opposite sides of the rotor body in the axial direction, and the first magnets and the second magnets have magnetic forces that repel the opposite sides of the electromagnets. The homopolar vector rotating motor as described in claim 6, wherein the electromagnets are arranged into a plurality of rings along different diameter positions of the stator body; the first magnets are arranged into a plurality of rings along different diameter positions of the first rotor body, so that the first magnets correspond to one side of the electromagnets; and the second magnets are arranged into a plurality of rings along different diameter positions of the second rotor body, so that the second magnets correspond to the other side of the electromagnets.

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