Motor and vehicle

Abstract

The invention belongs to the technical field of motors, and particularly relates to a motor and a vehicle. The motor comprises a primary assembly, a secondary assembly, a first supporting part and a second supporting part, the first supporting part is arranged on the primary assembly of the motor, the second supporting part is arranged on the secondary assembly of the motor, and the first supporting part and the second supporting part are inserted into a gap between the primary assembly and the secondary assembly; the first supporting part and the second supporting part at least partially coincide in the central axis direction of the motor. According to the invention, the first supporting part and the second supporting part at least partially coincide along the central axis of the motor, so that the first supporting part and the second supporting part can be ensured to be in contact with each other and abut against each other, radial supporting force is provided, and radial swing is avoided when unbalanced magnetic pulling force exists between the primary assembly and the secondary assembly; the primary component and the secondary component are prevented from contacting the sweep chamber.

Description

Technical Field

[0001] The present invention belongs to the technical field of motors, and in particular relates to a motor and a vehicle. Background Art

[0002] The active suspension system is a new type of suspension system developed in recent years. The permanent magnet linear motor is the electromagnetic actuator of the active suspension. Due to the eccentricity in the assembly of the linear motor, the air gap is uneven, and there is a radial unbalanced magnetic pull between the stator and the mover. During the movement of the mover, it is easy to cause the stator and the mover to contact and sweep the bore. Therefore, how to ensure that the stator and the mover maintain relatively stable operation without radial shaking has become a major problem in the design of linear motors. Summary of the invention

[0003] The technical problem to be solved by the present invention is: to provide a motor and a vehicle for the problem of bore sweeping caused by contact between the stator and the mover in the existing linear motor.

[0004] To solve the above technical problems, on the one hand, an embodiment of the present invention provides a motor, comprising a primary assembly, a secondary assembly, a first support portion and a second support portion, wherein the first support portion is arranged on the primary assembly, the second support portion is arranged on the secondary assembly, and the first support portion and the second support portion are inserted into a gap between the primary assembly and the secondary assembly;

[0005] The first support portion and the second support portion at least partially overlap along the central axis direction of the motor.

[0006] Optionally, the first supporting portion includes a first connecting member and a first abutment member connected to the first connecting member, the second supporting portion includes a second connecting member and a second abutment member connected to the second connecting member, the first connecting member is used to connect the primary component, the second connecting member is used to connect the secondary component, the first abutment member and the second abutment member are arranged in the gap between the primary component and the secondary component, and abut against each other.

[0007] Optionally, the first connecting member and the second connecting member are far away from each other, the first abutting member and the second abutting member extend along the axial direction of the motor, and an extending direction of the first abutting member is opposite to an extending direction of the second abutting member.

[0008] Optionally, the axial length of the first abutment member is greater than or equal to the relative displacement between the secondary assembly and the primary assembly; and / or,

[0009] An axial length of the second abutment member is greater than or equal to a relative displacement between the secondary assembly and the primary assembly.

[0010] Optionally, one of the first abutting member and the second abutting member is a cylindrical structure, and the other is provided in plurality and is arranged at intervals around the central axis of the motor.

[0011] Optionally, the first abutting member has a first wall surface and a second wall surface that are arranged opposite to each other, the first wall surface is connected to the first connecting member, and the second wall surface protrudes from the outer peripheral surface of the first connecting member in a direction toward the second abutting member or is flush with the outer peripheral surface of the first connecting member;

[0012] The second abutment member has a third wall surface and a fourth wall surface that are arranged opposite to each other, the third wall surface is connected to the second connection member, and the fourth wall surface protrudes from the outer peripheral surface of the second connection member toward the first abutment member or is flush with the outer peripheral surface of the second connection member;

[0013] The second wall surface abuts against the fourth wall surface.

[0014] Optionally, the first support portion is made of non-magnetic conductive material, and the second support portion is made of non-magnetic conductive material.

[0015] Optionally, the secondary component includes a support member and a magnetic steel, the second connecting member is connected to the support member, and the magnetic steel is arranged between the support member and the second abutting member;

[0016] The primary component includes a primary core and a coil winding. The primary core is provided with a plurality of core teeth along the axial direction. A tooth slot is provided between two adjacent core teeth. The coil winding is arranged in the tooth slot. The first connecting member is connected to the primary core. The first abutting member abuts against the core teeth and the coil winding.

[0017] Optionally, the motor further comprises a plurality of heat dissipation fins, the plurality of heat dissipation fins are arranged at intervals along the axial direction of the motor, and the heat dissipation fins surround the outer surface of the motor.

[0018] On the other hand, an embodiment of the present invention provides a vehicle, comprising the motor as described above.

[0019] In the motor provided by the embodiment of the present invention, the first support part and the second support part at least partially overlap along the central axis of the motor, which can ensure that the first support part and the second support part can contact and abut each other to provide radial supporting force. When there is an unbalanced magnetic pulling force between the primary component and the secondary component, radial swing will not occur, preventing the primary component and the secondary component from contacting and sweeping the bore. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a first supporting portion provided by an embodiment of the present invention;

[0021] Figure 2is a schematic diagram of a second supporting portion provided by an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the coordination of a first supporting portion and a second supporting portion provided by an embodiment of the present invention;

[0023] Figure 4 is a diagram of the coordination of a first support portion and a primary assembly provided by an embodiment of the present invention;

[0024] Figure 5 is a diagram of the coordination of the second support portion and the secondary assembly provided by one embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of a motor provided in accordance with an embodiment of the present invention.

[0026] The reference numerals in the specification are as follows:

[0027] 1. first supporting portion; 11. first connecting member; 12. first abutting member; 121. first wall surface; 122. second wall surface;

[0028] 2. second supporting portion; 21. second connecting member; 22. second abutting member; 221. third wall surface; 222. fourth wall surface;

[0029] 3. Secondary assembly; 31. Support member; 311. Shoulder boss; 312. Buffer member; 32. Magnetic steel;

[0030] 4. Primary assembly; 41. Primary iron core; 411. Iron core body; 412. Connecting shaft; 42. Coil winding;

[0031] 5. Heat dissipation fins. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] like Figures 1 to 5 As shown, a support assembly provided by an embodiment of the present invention includes a primary assembly 4, a secondary assembly 3, a first support portion 1 and a second support portion 2, wherein the first support portion 1 is arranged on the primary assembly 4 of the motor, and the second support portion 2 is arranged on the secondary assembly 3 of the motor, and the first support portion 1 and the second support portion 2 are inserted in the gap between the primary assembly 4 and the secondary assembly 3, and the first support portion 1 is used to provide radial support force to the primary assembly 4, and the second support portion 2 is used to provide radial support force to the secondary assembly 3. The first support portion 1 and the second support portion 2 at least partially overlap along the central axis of the motor.

[0034] In the motor provided by the embodiment of the present invention, the first support part 1 and the second support part 2 at least partially overlap along the central axis of the motor, which can ensure that the first support part 1 and the second support part 2 can contact and abut each other to provide radial supporting force. When there is an unbalanced magnetic pulling force between the primary component 4 and the secondary component 3, radial swing will not occur, preventing the primary component 4 and the secondary component 3 from contacting and sweeping the bore.

[0035] In one embodiment, the first support portion 1 is sleeved on the outside of the second support portion 2, or the second support portion 2 is sleeved on the outside of the first support portion 1, so that the first support portion 1 and the second support portion 2 are coaxially sleeved together to achieve mutual contact between the first support portion 1 and the second support portion 2.

[0036] In one embodiment, if Figure 1 , Figure 2 As shown, the first support portion 1 includes a first connecting member 11 and a first abutting member 12 connected to the first connecting member 11, the first connecting member 11 is used to connect the primary iron core 41 of the primary assembly 4, one end of the first abutting member 12 extends from the first connecting member 11, and the other end of the first abutting member 12 is a free end. The second support portion 2 includes a second connecting member 21 and a second abutting member 22 connected to the second connecting member 21, the second connecting member 21 is used to connect the support member 31 of the secondary assembly 3, one end of the second abutting member 22 extends from the second connecting member 21, and the other end of the second abutting member 22 is a free end, the first abutting member 12 and the second abutting member 22 are arranged in the gap between the primary assembly and the secondary assembly of the motor, dividing the gap between the secondary assembly 3 and the primary assembly 4 into two parts along the axial direction, and the first abutting member 12 and the second abutting member 22 abut against each other, which can provide radial support force.

[0037] In one embodiment, the first support part 1 is made of non-magnetic conductive material, and the second support part 2 is made of non-magnetic conductive material, so that the first abutment 12 and the second abutment 22 in the air gap will not affect the magnetic field of the secondary component 3 and the primary component 4. Preferably, the first support part 1 and the second support part 2 are made of resin or aluminum alloy.

[0038] In one embodiment, the sum of the thickness of the first abutment 12 and the thickness of the second abutment 22 is equal to the thickness of the air gap. Specifically, the thickness of one of the first abutment 12 and the second abutment 22 is less than or equal to half of the thickness of the air gap, and the thickness of the other is greater than or equal to half of the thickness of the air gap, or the thickness of the first abutment 12 is less than or equal to half of the thickness of the air gap, and the thickness of the second abutment 22 is less than or equal to half of the thickness of the air gap.

[0039] In one embodiment, if Figure 3As shown, the first connecting member 11 and the second connecting member 21 are far away from each other and do not overlap along the central axis direction of the motor. The first abutment member 12 and the second abutment member 22 both extend along the axial direction of the motor, and the extension direction of the first abutment member 12 and the extension direction of the second abutment member 22 are opposite. The first abutment member 12 and the second abutment member 22 are sleeve-connected and at least partially overlap in the axial direction, so that when the first support portion 1 and the second support portion 2 are sleeve-connected, only the first abutment member 12 and the second abutment member 22 abut, which can reduce the contact area and reduce the friction resistance.

[0040] In one embodiment, the axial length of the first abutment 12 is greater than or equal to the relative displacement between the secondary component 3 and the primary component 4, and / or the axial length of the second abutment 22 is greater than or equal to the relative displacement between the secondary component 3 and the primary component 4, so that during the relative movement of the secondary component 3 and the primary component 4, the first abutment 12 and the second abutment 22 always maintain abutment to avoid bore scraping.

[0041] Furthermore, on the secondary component, the second connecting member 21 abuts against one end of the magnetic steel 32, and a shoulder boss 311 is provided at the end of the supporting member 31 of the secondary component 3 away from the second connecting member 21. The axial ends of the magnetic steel 32 abut against the shoulder boss 311 and the second connecting member 21 respectively, and the radial sides of the magnetic steel 32 abut against the second abutting member 22 and the supporting member 31 respectively. The axial length of the second abutting member 22 is greater than or equal to the axial length of the magnetic steel 32 of the secondary component 3, and the axial length of the second abutting member 22 does not exceed the sum of the axial length of the magnetic steel 32 and the axial length of the shoulder boss 311.

[0042] In one embodiment, if Figure 1 , Figure 2 As shown, one of the first abutting member 12 and the second abutting member 22 is a cylindrical structure, and the other is provided with a plurality of them and is arranged at intervals around the central axis of the motor.

[0043] Specifically, a plurality of first abutment members 12 are provided, and are spaced around the outer edge of the first connecting member 11. A plurality refers to two or more. The second abutment member 22 is a cylindrical structure. A plurality of first abutment members 12 are inserted into the cylindrical second abutment member 22, or a plurality of first abutment members 12 are arranged around the second abutment member 22. The first abutment member 12 and the second abutment member 22 can contact each other, and the contact area is small, with small friction resistance. The first connecting member 11 is annular. In order to enable the first abutment member 12 to provide better radial support force, the first abutment member 12 is fan-shaped. On the polyhedral cylindrical primary core 41, the first abutment member 12 is set to be plate-shaped.

[0044] In another embodiment not shown, the first abutment member 12 is a cylindrical structure, and a plurality of second abutment members 22 are provided and are spaced around the outer edge of the second connection member 21. The second connection member 21 is annular, and in order to provide a better radial support force for the second abutment member 22, the second abutment member 22 is fan-shaped. On the multi-faceted cylindrical secondary assembly 3, the second abutment member 22 is set in a plate shape.

[0045] In one embodiment, if Figure 3 As shown, the first abutting member 12 has a first wall surface 121 and a second wall surface 122 that are arranged opposite to each other, the first wall surface 121 is connected to the first connecting member 11, and the second wall surface 122 protrudes from the outer peripheral surface of the first connecting member 11 toward the second abutting member 22 or is flush with the outer peripheral surface of the first connecting member 11. When the second wall surface 122 is flush with the outer peripheral surface of the first connecting member 11, the end of the first abutting member 12 is embedded in the first connecting member 11, and the first wall surface 121 can abut the primary iron core 41. When the second wall 122 protrudes from the outer circumferential surface of the first connecting member 11, the first wall 121 can abut the outer circumferential surface of the first connecting member 11 and the primary iron core 41. When the axial length of the second abutment 22 is greater than or equal to the axial length of the magnetic steel 32 of the secondary component 3, that is, when the second abutment 22 and the first connecting member 11 can overlap in the axial direction, the second wall 122 protrudes, so that the second wall 122 can contact the second abutment 22, and the first abutment 12 is spaced between the first connecting member 11 and the second abutment 22, and the first connecting member 11 and the second abutment 22 cannot contact each other, thereby avoiding the generation of friction resistance between the first connecting member 11 and the second abutment 22.

[0046] like Figure 3 As shown, the second abutting member 22 has a third wall surface 221 and a fourth wall surface 222 that are arranged opposite to each other, the third wall surface 221 is connected to the second connecting member 21, the fourth wall surface 222 protrudes from the outer peripheral surface of the second connecting member 21 toward the direction of the first abutting member 12 or is flush with the outer peripheral surface of the second connecting member 21, and the second wall surface 122 abuts against the fourth wall surface 222. When the axial length of the first abutting member 12 is large, in order to avoid contact between the first abutting member 12 and the second connecting member 21, when the fourth wall surface 222 is arranged to protrude from the outer peripheral surface of the second connecting member 21, the fourth wall surface 222 contacts the first abutting member 12, and the first abutting member 12 and the second connecting member 21 cannot contact each other, thereby avoiding friction resistance between the first abutting member 12 and the second connecting member 21.

[0047] In one embodiment, the motor is a cylindrical linear motor, the primary component 4 is a stator, the secondary component 3 is a mover, the gap between the secondary component 3 and the primary component 4 is an air gap, the air gap is 0.5 to 2 mm, and the secondary component 3 is arranged inside the primary component 4, or the secondary component 3 is arranged on the outside of the primary component 4.

[0048] In one embodiment, if Figure 4 , Figure 5 As shown, the secondary component 3 includes a support member 31 and a magnet 32, the second connecting member 21 is connected to the support member 31, the magnet 32 ​​is arranged between the support member 31 and the second abutment member 22, the second support portion 2 and the secondary component 3 are injection molded as a whole, and the second support portion 2 is connected to the support member 31 and the magnet 32 ​​by injection molding.

[0049] The primary component 4 includes a primary iron core 41 and a coil winding 42. The primary iron core 41 is provided with a plurality of core teeth along the axial direction, and a tooth slot is provided between two adjacent core teeth. The first connecting member 11 is connected to the primary iron core 41, and the first supporting portion 1 abuts against the core teeth and the coil winding 42. The first supporting portion 1 and the primary component 4 are injection molded as a whole, and the first supporting portion is connected to the primary iron core 41 by injection molding. A plurality of coil windings 42 are arranged in the tooth slots, and the connecting wires are connected in series to the coil windings 42 distributed in different tooth slots in one phase. After the series connection, one end of one phase is connected to the wires of other phases, and the other end is led out to connect to the controller. The coil windings 42 in the tooth slots are connected into multiple phases to constitute an armature winding.

[0050] The primary core 41 is made of magnetic steel 32 or magnetic materials such as silicon steel sheets. The material of the magnetic steel 32 is neodymium iron boron material. The material of the support member 31 is non-magnetic heat-treated strengthened aluminum alloy material.

[0051] In one embodiment, the number of tooth slots is determined according to the pole slot matching selected by the motor. The axial length of the tooth slot = (total length of the primary core 41 / number of slots) * (0.3 to 0.7), wherein the total length of the primary core 41 / number of slots is equal to the total length of a tooth slot and a core tooth on the primary core 41, and a tooth slot needs to occupy 0.3 to 0.7 of the total length. The depth of the tooth slot = (outer diameter of the primary core 41 - inner diameter of the primary core 41) * (0.65 to 0.85), the primary core 41 is cylindrical, and the difference between the outer diameter of the primary core 41 and the inner diameter of the primary core 41 is equal to the thickness of the primary core 41, and the tooth slot needs to occupy 0.65 to 0.85 of the thickness of the primary core 41 in the radial direction.

[0052] In one embodiment, if Figure 4 , Figure 5As shown, in the cylindrical permanent magnet linear motor with an outer mover and an inner stator, the secondary component 3 is sleeved on the outside of the primary component 4, the second support part 2, the magnetic steel 32 and the support member 31 are coaxially arranged, and the second connecting member 21 is a cylindrical structure. The second connecting member 21 is arranged inside the support member 31 and is located at one axial end of the magnetic steel 32. In the radial direction away from the center axis, the magnetic steel 32 is sleeved on the outside of the second abutment 22, and the support member 31 is sleeved on the outside of the magnetic steel 32. The second abutment 22 can be cylindrical or strip-shaped, and the second abutment 22 is arranged at the outer edge of the second connecting member 21, where the outer edge refers to the edge of the second connecting member 21 on the side away from the support member 31.

[0053] The primary core 41 includes a core body 411 and a connecting shaft 412, the connecting shaft 412 is connected to one end of the core body 411, the first connecting member 11 is annular, the first connecting member 11 is sleeved on the connecting shaft 412, the first abutment 12 can be cylindrical or strip-shaped, the first wall 121 of the first abutment 12 abuts on the outer peripheral surface of the core body 411, the inner diameter of the ring where the first abutment 12 is located is equal to the outer diameter of the core body 411, the second wall 122 of the first abutment 12 abuts on the fourth wall 222 of the second abutment 22, ensuring that the primary component 4 and the secondary component 3 are in contact, and the outer diameter of the first connecting member 11 is less than or equal to the sum of the outer diameter of the core body 411 and the thickness of the first abutment 12.

[0054] When the outer diameter of the first connecting member 11 is equal to the sum of the outer diameter of the core body 411 and the thickness of the first abutment member 12, the second wall surface 122 is flush with the outer peripheral surface of the first connecting member 11. When the outer diameter of the first connecting member 11 is smaller than the sum of the outer diameter of the core body 411 and the thickness of the first abutment member 12, the second wall surface 122 protrudes from the outer peripheral surface of the first connecting member 11. At this time, preferably, the outer diameter of the first connecting member 11 is consistent with the outer diameter of the core body 411. The first abutment member 12 is connected to the outer peripheral surface of the first connecting member 11, and the outer peripheral surface here is the surface of the first connecting member 11 on the side away from the core body 411.

[0055] Preferably, one of the first abutting member 12 and the second abutting member 22 is cylindrical, and the other is strip-shaped.

[0056] In another embodiment not shown in the figure, in a cylindrical permanent magnet linear motor with an outer stator and an inner mover, the secondary component 3 is arranged inside the primary component 4, the second support part 2, the magnetic steel 32 and the support member 31 are coaxially arranged, the second connecting member 21 is annular, and the magnetic steel 32 is sleeved on the outside of the support member 31 in the radial direction away from the center axis, the second abutment member 22 is sleeved on the outside of the magnetic steel 32, the second connecting member 21 is sleeved on the support member 31, the second abutment member 22 can be cylindrical or strip-shaped, and the second abutment member 22 is connected to the outer edge of the second connecting member 21.

[0057] The first connecting member 11 is cylindrical and is disposed in the primary core 41. The first abutting member 12 abuts against the inner circumference of the core body 411. The first abutting member 12 may be cylindrical or strip-shaped and is connected to the inner circumference of the first connecting member 11. Preferably, one of the first abutting member 12 and the second abutting member 22 is cylindrical and the other is strip-shaped.

[0058] In one embodiment, if Figure 5 As shown, the motor further includes a plurality of heat dissipation fins 5, which are used to increase the contact area between the motor housing and the air, and play a role in heat dissipation by contact with the air. The heat dissipation fins 5 are annular, and a plurality of heat dissipation fins 5 are arranged on the outer surface of the motor at intervals along the axial direction, and the spacing between adjacent heat dissipation fins 5 is greater than 10 mm, and the projections of adjacent heat dissipation fins 5 on the outer surface of the motor do not overlap, and the heat dissipation fins 5 are arranged radially, perpendicular to the outer surface of the motor, and the thickness of the heat dissipation fins 5 is greater than 5 mm.

[0059] In the cylindrical permanent magnet linear motor with an outer rotor and an inner stator, the support member 31 is located at the outermost side and can serve as the housing of the motor, and the heat dissipation fins 5 are arranged on the outer surface of the support member 31. In the cylindrical permanent magnet linear motor with an outer stator and an inner rotor, the motor further includes a housing, which is sleeved on the outer side of the primary component 4, the secondary component 3 is arranged inside the primary component 4, and the heat dissipation fins 5 are arranged on the outer surface of the housing.

[0060] In one embodiment, if Figure 5 As shown, a buffer member 312 is disposed in the support member 31 , and the buffer member 312 is used to provide a buffering effect when the primary assembly 4 and the secondary assembly 3 move relative to each other, so as to prevent the primary assembly and the secondary assembly from colliding.

[0061] On the other hand, an embodiment of the present invention provides a vehicle, comprising the motor of the above embodiment.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor, characterized in that: The invention comprises a primary assembly, a secondary assembly, a first support portion and a second support portion, wherein the first support portion is arranged on the primary assembly, the second support portion is arranged on the secondary assembly, and the first support portion and the second support portion are inserted into a gap between the primary assembly and the secondary assembly; The first support portion and the second support portion at least partially overlap along the central axis direction of the motor.

2. The motor according to claim 1, characterized in that The first supporting portion includes a first connecting member and a first abutting member connected to the first connecting member, the second supporting portion includes a second connecting member and a second abutting member connected to the second connecting member, the first connecting member is used to connect the primary component, the second connecting member is used to connect the secondary component, the first abutting member and the second abutting member are arranged in the gap between the primary component and the secondary component, and abut against each other.

3. The motor according to claim 2, characterized in that The first connecting member and the second connecting member are far away from each other, the first abutting member and the second abutting member extend along the axial direction of the motor, and the extending direction of the first abutting member is opposite to the extending direction of the second abutting member.

4. The motor according to claim 2, characterized in that The axial length of the first abutment member is greater than or equal to the relative displacement between the secondary assembly and the primary assembly; and / or, An axial length of the second abutment member is greater than or equal to a relative displacement between the secondary assembly and the primary assembly.

5. The motor according to claim 2, characterized in that One of the first abutting member and the second abutting member is a cylindrical structure, and the other one is provided with a plurality of them and is arranged at intervals around the central axis of the motor.

6. The motor according to claim 5, characterized in that The first abutment member has a first wall surface and a second wall surface which are arranged opposite to each other, the first wall surface is connected to the first connection member, and the second wall surface protrudes from the outer peripheral surface of the first connection member in the direction of the second abutment member or is flush with the outer peripheral surface of the first connection member; The second abutment member has a third wall surface and a fourth wall surface that are arranged opposite to each other, the third wall surface is connected to the second connection member, and the fourth wall surface protrudes from the outer peripheral surface of the second connection member toward the first abutment member or is flush with the outer peripheral surface of the second connection member; The second wall surface abuts against the fourth wall surface.

7. The motor according to claim 1, characterized in that The first support portion is made of non-magnetic conductive material, and the second support portion is made of non-magnetic conductive material.

8. The motor according to claim 2, characterized in that The secondary assembly includes a support member and a magnetic steel, the second connecting member is connected to the support member, and the magnetic steel is arranged between the support member and the second abutting member; The primary component includes a primary core and a coil winding. The primary core is provided with a plurality of core teeth along the axial direction. A tooth slot is provided between two adjacent core teeth. The coil winding is arranged in the tooth slot. The first connecting member is connected to the primary core. The first abutting member abuts against the core teeth and the coil winding.

9. The motor according to claim 1, characterized in that The motor further comprises a plurality of heat dissipation fins, which are arranged at intervals along the axial direction of the motor and surround the outer surface of the motor.

10. A vehicle, characterized in that: A motor comprising any one of claims 1 to 9.

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