Shell assembly of motor, motor and vehicle

Abstract

The utility model provides a housing assembly of a motor, the motor and a vehicle. The housing assembly of the motor comprises a support and a cover body. The support is provided with an inner cavity, and the inner cavity is used for installing a circuit board of the motor and filling pouring sealant. The support is provided with a first fixing piece. The cover body is provided with a second fixing piece, and the second fixing piece is matched with the first fixing piece and used for fixing the cover body to the support. The cover body is provided with a protruding part, and the protruding part extends into the inner cavity and makes contact with the pouring sealant in the inner cavity. The shell assembly has the advantages of being simple in installation operation, low in assembly cost and large in connection strength of the cover body and the support.

Description

Technical Field

[0001] The utility model generally relates to the technical field of motors, and more specifically to a housing component of a motor, a motor and a vehicle. Background Art

[0002] At present, the back cover of existing motors is generally a metal cover or a plastic cover. In the installation process of the back cover, the back cover is bonded to the bracket by room temperature curing glue, and then the back cover is buckled onto the bracket. The connection strength between the back cover and the bracket is insufficient, which can easily cause the back cover to detach from the bracket. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the utility model provides a housing assembly of a motor in a first aspect, wherein the housing assembly of the motor comprises:

[0005] A bracket, wherein the bracket is provided with an inner cavity, the inner cavity is used to install the circuit board of the motor and to be filled with potting glue, and the bracket is provided with a first fixing member; and

[0006] The cover body is provided with a second fixing piece, the second fixing piece cooperates with the first fixing piece and is used to fix the cover body to the bracket, and the cover body is provided with a protrusion, the protrusion extends into the inner cavity and contacts with the potting glue in the inner cavity.

[0007] According to the housing assembly of the motor of the first aspect of the utility model, the cover body is fixed to the bracket by the cooperation of the second fixing piece and the first fixing piece on the bracket, and the inner cavity of the bracket is filled with potting glue, so that the cover body and the bracket are bonded and fixed. There is no need for the installer to apply glue along the circumference of the bracket and fix the cover body with fasteners. The installation operation is simpler and the assembly cost is reduced. In addition, the setting of the sink groove of the cover body strengthens the bonding between the cover body and the bracket, ensures the connection strength between the cover body and the bracket, and helps prevent the cover body from detaching from the bracket.

[0008] Optionally, the bracket is provided with a guide groove, the guide groove cooperates with the second fixing member, and the guide groove is used to guide the second fixing member to cooperate with the first fixing member.

[0009] Optionally, the bracket is provided with fins, and two of the fins adjacent to the first fixing member form the guide groove.

[0010] Optionally, fins are provided on the peripheral side of the bracket, and the fins are arranged along the peripheral side edge of the bracket.

[0011] Optionally, the second fixing member is provided with a clamping groove, and the clamping groove cooperates with the first fixing member to clamp the first fixing member.

[0012] Optionally, the second fixing member is provided with a guide groove, and the clamping groove is located in the guide groove; when the cover body is clamped to the bracket, the first fixing member is slidably connected to the guide groove.

[0013] Optionally, a plurality of the first fixing members are arranged along a circumferential direction of the bracket, and each of the second fixing members is disposed corresponding to one of the first fixing members.

[0014] Optionally, the second fixing member is provided with a bending portion, and the bending portion abuts against the first fixing member.

[0015] Optionally, the cover body protrudes toward the bracket to form the protrusion.

[0016] Optionally, at least part of the protrusion extends along the peripheral edge of the cover body.

[0017] A second aspect of the utility model provides a motor, comprising a housing assembly of the motor described above.

[0018] According to the motor of the second aspect of the utility model, the installation operation of the cover body and the bracket is simple, the assembly cost is low, and the connection strength between the cover body and the bracket is high.

[0019] Optionally, it also includes:

[0020] A circuit board, wherein the circuit board is disposed in the inner cavity;

[0021] a wiring harness assembly connected to the circuit board; and

[0022] A guide plate is connected to the circuit board.

[0023] Optionally, the guide plate is provided with a hook, a first end of the hook is connected to the guide plate, a second end of the hook extends to the outside of the guide plate, and the hook is used for welding the wire.

[0024] Optionally, the hook is provided with a pressure rib, and the pressure rib protrudes from a side of the hook close to the guide plate; and / or

[0025] The guide plate is provided with a pressure rib, and the pressure rib protrudes from a side of the guide plate close to the hook.

[0026] Optionally, the guide plate is provided with a convex bulge, the convex bulge is located on a side of the guide plate close to the hook, and the convex bulge is provided corresponding to the second end of the hook; and / or

[0027] The second end of the hook is provided with a convex bump.

[0028] Optionally, the bracket is provided with a mounting hole, an insulating plug is passed through the mounting hole, and the guide plate is passed through the insulating plug.

[0029] Optionally, a stator assembly is further included, wherein the stator assembly includes:

[0030] an iron core, the iron core being sleeved on the bracket and fixed relative to the bracket; and

[0031] The winding is arranged on the iron core and connected to the guide plate, and the winding is arranged at intervals around the axis of the bracket.

[0032] Optionally, a rotor assembly is further included, wherein the rotor assembly includes:

[0033] A rotating shaft, the rotating shaft is passed through the bracket and is rotatably arranged relative to the bracket around the axis of the bracket;

[0034] a rotor shell, wherein the rotor shell is sleeved on the bracket and fixed to the rotating shaft, and the stator assembly is located in the rotor shell; and

[0035] Magnetic sheets are arranged on the rotor shell and spaced apart around the axis of the bracket.

[0036] Optionally, the bracket is provided with a limiting tube shell, at least two rotating bearings are provided in the limiting tube shell, and the rotating shaft passes through the at least two rotating bearings.

[0037] Optionally, the rotor shell is provided with an elastic member, a first end of the elastic member is connected to the rotor shell, and a second end of the elastic member is connected to the rotating bearing.

[0038] A third aspect of the utility model provides a vehicle, comprising the motor according to the above.

[0039] The vehicle according to the third aspect of the utility model has a motor that is easy to install and has a low assembly cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0041] Figure 1A three-dimensional schematic diagram of a housing assembly of a motor according to a preferred embodiment of the utility model;

[0042] Figure 2 for Figure 1 An exploded view of the shell assembly in FIG.

[0043] Figure 3 for Figure 2 A bottom view of the cover body, at which the second fixing member of the cover body has been riveted and stamped;

[0044] Figure 4 A three-dimensional schematic diagram of a motor according to a preferred embodiment of the utility model;

[0045] Figure 5 for Figure 4 A top view of the motor in FIG.

[0046] Figure 6 For along Figure 5 Schematic diagram of the cross section taken along the midline AA;

[0047] Figure 7 for Figure 4 An exploded view of the motor along the axis direction;

[0048] Figure 8 is a three-dimensional schematic diagram of a stator assembly; and

[0049] Fig. 9 It is a three-dimensional schematic diagram of the guide vane.

[0050] Description of Reference Numerals

[0051] 100: bracket 101: inner cavity

[0052] 102: first fixing member 103: fin

[0053] 104: Limiting tube shell 105: Mounting hole

[0054] 106: Rotating bearing 107: Insulation plug

[0055] 108: Thermal conductive pad 110: Cover

[0056] 111: second fixing member 112: sink

[0057] 109: guide groove 113: protrusion

[0058] 121: Iron core 122: Winding

[0059] 131: Rotating shaft 132: Rotor case

[0060] 133: Magnetic sheet 134: Elastic member

[0061] 140: Circuit board 141: Fastener

[0062] 150: Wire harness assembly 160: Guide plate

[0063] 161: Hook 162: Rib

[0064] 163: Convex Hull DETAILED DESCRIPTION

[0065] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0066] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0067] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0068] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0069] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0070] Figures 1 to 3 A housing assembly of a motor according to the utility model is shown, and the housing assembly of the motor includes a bracket 100 and a cover 110. The bracket 100 is provided with an inner cavity 101, and the inner cavity 101 is used to install the circuit board 140 of the motor and to fill the potting glue. The bracket 100 is provided with a first fixing member 102. The cover 110 is provided with a second fixing member 111, and the second fixing member 111 cooperates with the first fixing member 102 to fix the cover 110 to the bracket 100. The cover 110 is provided with a protrusion 113, and the protrusion 113 extends into the inner cavity 101 and contacts with the potting glue in the inner cavity 101.

[0071] According to the housing assembly of the motor of the utility model, the cover 110 is fixed to the bracket 100 by the cooperation of the second fixing member 111 and the first fixing member 102 on the bracket 100, and the inner cavity 101 of the bracket 100 is filled with potting glue, so that the cover 110 and the bracket 100 are bonded and fixed, and there is no need for the installer to apply glue along the circumference of the bracket 100 and fix the cover 110 by the fastener 141, so the installation operation is simpler and the assembly cost is reduced. In addition, the setting of the sink groove 112 of the cover 110 strengthens the bonding between the cover 110 and the bracket 100, ensures the connection strength between the cover 110 and the bracket 100, and helps prevent the cover 110 from detaching from the bracket 100.

[0072] Reference Figure 2 A guide groove 109 is provided on the peripheral side of the bracket 100, and the guide groove 109 cooperates with the second fixing member 111 to guide the second fixing member 111 to cooperate with the first fixing member 102, so that the cover body 110 is accurately engaged with the bracket 100.

[0073] Reference Figure 2 The bracket 100 is provided with a plurality of fins 103, which are arranged along the peripheral edge of the bracket 100, and the first fixing member 102 is located between two adjacent fins 103. The provision of the fins 103 has a certain protective effect on the first fixing member 102, preventing the first fixing member 102 from being damaged, and the fins 103 also have a heat dissipation effect on the bracket 100.

[0074] Furthermore, the two fins 103 adjacent to the first fixing member 102 form a guide groove 109, so the fins 103 also have the function of guiding the second fixing member 111. In detail, the two fins 103 adjacent to the first fixing member 102 guide the second fixing member 111 corresponding to the cover body 110, so that the cover body 110 can be accurately snapped onto the correct position of the bracket 100, and the installation is convenient.

[0075] Further, the first fixing member 102 is a clamping block, and the second fixing member 111 is provided with a clamping groove (not shown in the figure). When the cover body 110 is clamped to the bracket 100, the clamping groove of the second fixing member 111 cooperates with the first fixing member 102, so that the first fixing member 102 and the second fixing member 111 are clamped, so that the cover body 110 is fixed to the bracket 100. Optionally, the second fixing member 111 is provided with a guide groove, and the clamping groove is located in the guide groove. The first end of the second fixing member 111 is connected to the side of the cover body 110, and the second end of the second fixing member 111 protrudes from the cover body 110. During the process of installing the cover body 110 onto the bracket 100, the second fixing member 111 is correspondingly inserted between the two adjacent fins 103 where the first fixing member 102 is located. At the same time, the first fixing member 102 slides along the guide groove of the second fixing member 111 until the cover body 110 is in place. The first fixing member 102 is embedded in the snap-fit ​​groove of the second fixing member 111, thereby realizing the snap-fit ​​and fixed installation of the cover body 110 and the bracket 100.

[0076] Furthermore, after the second fixing member 111 is clamped with the first fixing member 102, the second fixing member 111 is stamped to form a bending portion of the second fixing member 111, and the bending portion abuts against the first fixing member 102, so that the second fixing member 111 and the first fixing member 102 are stamped and riveted together, making the connection between the cover body 110 and the bracket 100 more secure.

[0077] Reference Figure 2 The bracket 100 is provided with four first fixing members 102, and correspondingly, the cover body 110 is provided with four second fixing members 111. The four first fixing members 102 are arranged along the circumferential direction of the bracket 100, and the four second fixing members 111 are arranged along the circumferential direction of the cover body 110, and each second fixing member 111 is arranged corresponding to a first fixing member 102, so that the cover body 110 can be accurately mounted on the bracket 100. More preferably, the first fixing members 102 and the second fixing members 111 can be arranged in an unequal distance, so that when the first fixing members 102 and the second fixing members 111 correspond one by one, the cover body 110 is clamped to the bracket 100 in a unique and correct orientation.

[0078] Further, see Figures 1 to 3 , the cover 110 protrudes toward the bracket 100 to form a protrusion 113. In other words, the surface of the cover 110 close to the bracket 100 forms the protrusion 113, and the protrusion 113 protrudes into the inner cavity 101, while the surface of the cover 110 away from the bracket 100 forms a recess 112 due to the processing of the protrusion 113. The protrusion 113 can be formed by stamping, which will not increase the mass of the cover 110 and can also enhance the structural strength of the cover 110.

[0079] Reference Figure 2 and Figure 3 The cover 110 is provided with two protrusions 113 (i.e., the back of the sink 112), one of which extends along the arc-shaped peripheral edge of the cover 110. The provision of the protrusions 113 enhances the connection strength of the edge of the cover 110 with the bracket 100.

[0080] Figures 4 to 9 A motor according to the utility model is shown, comprising the housing assembly of the motor according to the above. According to the motor of the utility model, the installation of the cover 110 and the bracket 100 is simple, the assembly cost is low, and the connection strength between the cover 110 and the bracket 100 is high.

[0081] In detail, the motor further includes a stator assembly, a rotor assembly, a circuit board 140, a wiring harness assembly 150 and a guide plate 160. The stator assembly is arranged on the bracket 100. The rotor assembly is rotatably arranged relative to the stator assembly. The circuit board 140 is arranged in the inner cavity 101 and is fixed to the bracket 100 by a fastener 141. The wiring harness assembly 150 is connected to the circuit board 140 and is fixed by the buckle of the bracket 100 and the cover body 110. The first end of the guide plate 160 is plugged into the stator assembly, and the second end of the guide plate 160 is connected to the circuit board 140. A thermal conductive pad 108 is also arranged in the bracket 100, and the thermal conductive pad 108 is arranged between the circuit board 140 and the cover body 110, and combined with the heat dissipation effect of the fins 103 on the cover body 110, it is conducive to enhancing the heat dissipation effect on the circuit board 140. The wiring harness assembly 150 connects the external power source to the circuit board 140 , and the stator assembly is connected to the circuit board 140 via the guide plate 160 , so that the stator assembly is energized to generate a magnetic field, and the rotor assembly rotates under the magnetic field of the stator assembly.

[0082] Further, the stator assembly includes an iron core 121 and a winding 122. A limiting tube shell 104 is provided on one side of the bracket 100 away from the cover body 110. The limiting tube shell 104 is hollow inside and is integrally formed with the bracket 100. The iron core 121 is sleeved to the limiting tube shell 104 of the bracket 100 and fixed relative to the bracket 100. The winding 122 is provided on the iron core 121 and connected to the guide vane 160, and the winding 122 is arranged at intervals around the axis of the bracket 100. The winding 122 is wound by an enameled wire, and the enameled wire of the winding 122 is connected to the guide vane 160, so that the winding 122 is energized to form a magnetic field on the iron core 121.

[0083] The rotor assembly includes a rotating shaft 131, a rotor shell 132, and a magnetic sheet 133. The rotating shaft 131 is inserted into the bracket 100 and is rotatably arranged around the axis of the bracket 100 relative to the bracket 100. The rotor shell 132 is sleeved on the bracket 100 and fixed to the rotating shaft 131, and the stator assembly is located in the rotor shell 132. The magnetic sheets 133 are arranged on the inner side of the rotor shell 132 and are arranged at intervals around the axis of the bracket 100. The magnetic field of the iron core 121 interacts with the magnetic sheet 133, and drives the rotating shaft 131 to rotate through the rotor shell 132.

[0084] Further, see Figure 6 and Figure 7 , two rotating bearings 106 are arranged in the limiting tube shell 104, and the rotating shaft 131 is passed through the two rotating bearings 106, so that the rotating shaft 131 can rotate relative to the bracket 100. The first end of the rotating shaft 131 extends into the limiting tube shell 104, and the second end of the rotating shaft 131 is passed through the rotor shell 132 and fixed to the rotor shell 132. The rotor shell 132 is provided with an elastic member 134, and the elastic member 134 can be a spring, and the elastic member 134 is sleeved on the rotating shaft 131. The first end of the elastic member 134 abuts against the rotor shell 132, and the second end of the elastic member 134 abuts against the rotating bearing 106 near the outside of the limiting tube shell 104, which makes up for the gap between the second end of the rotating shaft 131 and the rotating bearing 106, thereby preventing the axial movement of the rotating shaft 131.

[0085] Reference Figure 6 and Figure 7 The bracket 100 is provided with a mounting hole 105, an insulating plug 107 is passed through the mounting hole 105, and the guide plate 160 is passed through the insulating plug 107. The guide plate 160 is fixed to the mounting hole 105 of the bracket 100 through the insulating plug 107, which is beneficial to prevent the guide plate 160 from short-circuiting with the bracket 100 and improve safety.

[0086] Reference Figure 8 and Fig. 9 The guide plate 160 is provided with a hook 161, a first end of the hook 161 is connected to the guide plate 160, a second end of the hook 161 extends to the outside of the guide plate 160, and the hook 161 is used to weld the wire. In detail, the enameled wire of the winding 122 passes between the hook 161 and the guide plate 160, and the hook 161 and the guide plate 160 are pressed together and welded to the enameled wire, thereby realizing the connection between the winding 122 and the guide plate 160. The setting of the hook 161 facilitates the formation of a stable connection between the guide plate 160 and the enameled wire of the winding 122.

[0087] Reference Fig. 9The hook 161 is provided with a rib 162, which protrudes from the side of the hook 161 close to the guide plate 160. The guide plate 160 is provided with a rib 162, which protrudes from the side of the guide plate 160 close to the hook 161. The rib 162 is made by stamping, and the setting of the rib 162 can assist in flattening the enameled wire, so that the enameled wire connected to the guide plate 160 can more easily meet the requirements of the pull-out force and the flattening rate.

[0088] Optionally, refer to Fig. 9 , the guide plate 160 is provided with a convex bump 163, which is located on the side of the guide plate 160 close to the hook 161, and the convex bump 163 is provided corresponding to the second end of the hook 161. The provision of the convex bump 163 enables the hook 161 to be pressed and contacted with the convex bump 163 when the welding gun welds the enameled wire, and the current is connected to the guide plate 160 through the hook 161 and the convex bump 163 respectively, so that the guide plate 160 as a whole shunts the welding current, thereby effectively preventing the guide plate 160 from breaking when welding the enameled wire. Optionally, the second end of the hook 161 may also be provided with a convex bump 163, so that when welding the enameled wire, the hook 161 and the guide plate 160 form a new passage to prevent the guide plate 160 from breaking.

[0089] The utility model also provides a vehicle, comprising the motor according to the above. According to the vehicle of the utility model, the motor used is easy to install, has low assembly cost, and has a stable structure.

[0090] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0091] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A housing assembly of a motor, characterized in that: The housing assembly of the motor comprises: A bracket, wherein the bracket is provided with an inner cavity, the inner cavity is used to install the circuit board of the motor and to be filled with potting glue, and the bracket is provided with a first fixing member; and The cover body is provided with a second fixing piece, the second fixing piece cooperates with the first fixing piece and is used to fix the cover body to the bracket, and the cover body is provided with a protrusion, the protrusion extends into the inner cavity and contacts with the potting glue in the inner cavity.

2. The housing assembly of the motor according to claim 1, characterized in that: The bracket is provided with a guide groove, the guide groove matches with the second fixing member, and the guide groove is used to guide the second fixing member to match with the first fixing member.

3. The housing assembly of the motor according to claim 2, characterized in that: The bracket is provided with fins, and two of the fins adjacent to the first fixing member form the guide groove.

4. The housing assembly of the motor according to claim 1, characterized in that: The peripheral side of the bracket is provided with fins, and the fins are arranged along the peripheral side edge of the bracket.

5. The housing assembly of the motor according to claim 1, characterized in that: The second fixing member is provided with a clamping groove, and the clamping groove cooperates with the first fixing member and is used for clamping the first fixing member.

6. The housing assembly of the motor according to claim 5, characterized in that: The second fixing member is provided with a guide groove, and the clamping groove is located in the guide groove; when the cover body is clamped to the bracket, the first fixing member is slidably connected to the guide groove.

7. The housing assembly of the motor according to claim 1, characterized in that: A plurality of the first fixing members are arranged along the circumferential direction of the bracket, and each of the second fixing members is arranged corresponding to one of the first fixing members.

8. The housing assembly of the motor according to claim 5, characterized in that: The second fixing member is provided with a bending portion, and the bending portion abuts against the first fixing member.

9. The housing assembly of the motor according to claim 1, characterized in that: The cover body protrudes toward the bracket to form the protruding portion.

10. The housing assembly of the motor according to claim 1, characterized in that: At least part of the protrusion extends along the peripheral edge of the cover body.

11. A motor, characterized in that: A housing assembly comprising an electric machine according to any one of claims 1 to 10.

12. The motor according to claim 11, characterized in that Also includes: A circuit board, wherein the circuit board is disposed in the inner cavity; A wiring harness assembly connected to the circuit board; as well as A guide plate is connected to the circuit board.

13. The motor according to claim 12, characterized in that The guide plate is provided with a hook, a first end of the hook is connected to the guide plate, a second end of the hook extends to the outside of the guide plate, and the hook is used for welding the wire.

14. The motor according to claim 13, characterized in that The hook is provided with a pressure rib, and the pressure rib protrudes from a side of the hook close to the guide plate; and / or The guide plate is provided with a pressure rib, and the pressure rib protrudes from a side of the guide plate close to the hook.

15. The motor according to claim 14, characterized in that The guide plate is provided with a convex bulge, the convex bulge is located on a side of the guide plate close to the hook, and the convex bulge is provided corresponding to the second end of the hook; and / or The second end of the hook is provided with a convex bump.

16. The motor according to claim 12, characterized in that The bracket is provided with a mounting hole, an insulating plug is passed through the mounting hole, and the guide plate is passed through the insulating plug.

17. The motor according to claim 12, characterized in that Also included is a stator assembly, the stator assembly comprising: an iron core, the iron core being sleeved on the bracket and fixed relative to the bracket; and The winding is arranged on the iron core and connected to the guide plate, and the winding is arranged at intervals around the axis of the bracket.

18. The electric machine according to claim 17, characterized in that Also included is a rotor assembly, the rotor assembly comprising: A rotating shaft, the rotating shaft is passed through the bracket and is rotatably arranged relative to the bracket around the axis of the bracket; a rotor shell, wherein the rotor shell is sleeved on the bracket and fixed to the rotating shaft, and the stator assembly is located in the rotor shell; and Magnetic sheets are arranged on the rotor shell and spaced apart around the axis of the bracket.

19. The electric machine according to claim 18, characterized in that The support is provided with a limiting tube shell, at least two rotating bearings are provided in the limiting tube shell, and the rotating shaft passes through the at least two rotating bearings.

20. The electric machine according to claim 19, characterized in that The rotor case is provided with an elastic member, a first end of the elastic member is connected to the rotor case, and a second end of the elastic member is connected to the rotary bearing.

21. A vehicle, characterized in that: Comprising an electric machine according to any one of claims 11 to 20.

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