Motor and vehicle

Abstract

The embodiment of the utility model discloses a motor and a vehicle, and the motor comprises a housing which is internally provided with an installation cavity, and the interior of the installation cavity is provided with a conductive structure; one end of the motor shaft is located in the mounting cavity, and the motor shaft is rotatably supported on the shell through a bearing; and the conductive assembly is connected to the end part of the motor shaft and is separated from the bearing, and the conductive assembly is suitable for being elastically pressed towards the conductive structure along the axial direction of the motor shaft. According to the motor provided by the embodiment of the utility model, the conductive assembly is arranged at the end part of the motor shaft and is separated from the bearing, so that the shaft current can be directly conducted to the conductive assembly from the motor shaft, the current leading-out efficiency can be improved, the operation reliability of the bearing is ensured, the service life of the motor is prolonged, the NVH performance of the whole vehicle can be improved, and the use comfort of a user is improved; and the bearing is a common bearing and is simple in structure, so that the arrangement cost can be reduced, the use effect is better, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to an electric motor and a vehicle having the same. Background Art

[0002] With the development of the national economy and the continuous improvement of living standards, vehicles are becoming more and more important in people's daily travel. With the development of new energy vehicle technology and the high-speed operation of motor speed, new technologies such as silicon carbide modules are commonly used in the electronic control of existing vehicles. However, with the development of new technologies, problems such as shaft voltage have also emerged in the motor shaft. The common-mode shaft voltage, circulating shaft voltage, etc. generated on the motor shaft will break down the oil film between the bearings and discharge after accumulating for a period of time. During the repeated conduction and discharge process, it will cause electro-corrosion damage to the bearing balls, etc. The prior art usually uses structures such as fiber conductive brushes, conductive carbon brushes, and conductive bearings to conduct out the shaft voltage. However, this setting results in a high cost for bearing installation, and the shaft voltage will conduct electricity from the bearing, affecting the operating reliability of the bearing, and there is room for improvement. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an electric motor, which can reduce the installation cost, has a simple structure, can improve the current conduction efficiency, ensure the operating reliability of the bearing, and further can extend the service life of the motor and improve the NVH performance of the whole vehicle to ensure the user's comfort.

[0004] The electric motor according to an embodiment of the utility model includes: a housing, an installation cavity is formed in the housing, and a conductive structure is arranged in the installation cavity; a motor shaft, one end of the motor shaft is located in the installation cavity, and the motor shaft is rotatably supported by the housing through a bearing; a conductive component, the conductive component is connected to the end of the motor shaft and is spaced apart from the bearing, and the conductive component is adapted to elastically press towards the conductive structure along the axial direction of the motor shaft.

[0005] In the electric motor according to an embodiment of the utility model, the conductive component is arranged at the end of the motor shaft and is spaced apart from the bearing, so that the shaft current can be directly conducted from the motor shaft to the conductive component, which can improve the current conduction efficiency, ensure the operating reliability of the bearing, extend the service life of the motor, and further can improve the NVH performance of the whole vehicle to improve the user's comfort. Moreover, the bearing is a common bearing with a simple structure, and thus the installation cost can be reduced, the use effect is better, and the applicable range is wider.

[0006] In the electric motor according to some embodiments of the utility model, the conductive component includes an elastic member and a conductive ball, one end of the elastic member is relatively fixed to the motor shaft, the conductive ball is located at the other end of the elastic member, and the elastic member is used to press the conductive ball towards the conductive structure.

[0007] According to the motor of some embodiments of the present utility model, the conductive component further includes a mounting shell, the motor shaft is formed with an axial through hole, the mounting shell is mounted at the axial hole, a mounting groove is formed in the mounting shell, the mounting groove is formed with a mounting opening, the elastic member and the conductive ball are both located in the mounting groove and the elastic member is used to push at least a part of the conductive ball out of the mounting opening to press against the conductive structure.

[0008] According to the motor of some embodiments of the present utility model, the conductive component further includes a mounting shell, the motor shaft is formed with an axially open hole, the mounting shell is mounted at the end of the motor shaft, a mounting groove communicating with the axial hole is formed in the mounting shell, the mounting groove is formed with a mounting opening at one end facing away from the axial hole, the elastic member is mounted in the axial hole, the conductive ball is located in the mounting groove, and the elastic member is used to push at least a part of the conductive ball out of the mounting opening to press against the conductive structure.

[0009] According to the motor of some embodiments of the present utility model, the inner diameter of the mounting opening is smaller than the diameter of the conductive ball.

[0010] According to the motor of some embodiments of the present utility model, the housing includes a main housing and a top cover, the top cover is connected to the end of the main housing to jointly define the mounting cavity, the motor shaft is rotatably supported by the main housing through a bearing, and the conductive structure is arranged on the top cover and is axially opposite to the motor shaft.

[0011] According to the motor of some embodiments of the present utility model, the top cover is provided with a fixing groove facing the motor shaft, and the conductive structure is press-fitted into the fixing groove.

[0012] According to the motor of some embodiments of the present utility model, the top cover is provided with a fixing hole, the conductive structure includes a conductive part and a limiting part, the conductive part is detachably connected in the fixing hole and contacts the conductive component, and the limiting part is connected to the side of the conductive part facing away from the conductive component and is in limiting abutment with the top cover.

[0013] According to the motor of some embodiments of the present utility model, the top cover is provided with a fixing hole, the conductive structure includes a conductive member and a stop member, the conductive member is located in the fixing hole and contacts the conductive component, and the stop member is connected to the top cover and is in limiting pressure on the side of the conductive member facing away from the motor shaft.

[0014] The present utility model also proposes a vehicle.

[0015] According to the vehicle of the embodiment of the present utility model, it includes the motor described in any one of the above.

[0016] The vehicle and the above-mentioned motor have the same advantages as those of the prior art, which will not be elaborated here.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a partial cross-section of the motor according to an embodiment of the present utility model Figure 1 ;

[0020] Figure 2 is a cross-section of the conductive component according to an embodiment of the present utility model Figure 1 ;

[0021] Figure 3 is a partial cross-section of the motor according to an embodiment of the present utility model Figure 2 ;

[0022] Figure 4 is a cross-section of the conductive component according to an embodiment of the present utility model Figure 2 ;

[0023] Figure 5 is a partial cross-section of the motor according to an embodiment of the present utility model Figure 3 ;

[0024] Figure 6 is a partial cross-section of the motor according to an embodiment of the present utility model Figure 4 .

[0025] Reference Numerals:

[0026] housing 1, main housing 11, intermediate housing 111, end cap 112, top cover 12, fixing groove 121, fixing hole 122, installation cavity 13, motor shaft 14, shaft hole 141, bearing 15,

[0027] conductive component 2, elastic member 21, conductive ball 22, mounting shell 23, mounting groove 231, mounting opening 232,

[0028] conductive structure 3, conductive portion 31, limiting portion 32, conductive member 33, abutting member 34, connecting member 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Unless otherwise specified, the front-to-back direction in the present application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0033] Reference below Figures 1 - 6 Description: The motor according to the embodiment of the utility model can reduce the installation cost, has a simple structure, and can improve the current extraction efficiency, ensure the operating reliability of the bearing 15, thereby extending the service life of the motor and improving the NVH performance of the whole vehicle to ensure user comfort.

[0034] like Figures 1 - 6 As shown, a motor according to an embodiment of the present utility model includes: a housing 1 , a motor shaft 14 and a conductive component 2 .

[0035] An installation cavity 13 is formed inside the housing 1. A conductive structure 3 is provided inside the installation cavity 13. One end of the motor shaft 14 is located inside the installation cavity 13, and the motor shaft 14 is rotatably supported by the housing 1 through a bearing 15. The conductive component 2 is connected to the end of the motor shaft 14 and is spaced apart from the bearing 15. The conductive component 2 is adapted to be elastically pressed towards the conductive structure 3 along the axial direction of the motor shaft 14.

[0036] Among them, the motor is arranged inside the vehicle and can be used as the power source of the vehicle's electric drive system, and thus can drive the vehicle. The motor shaft 14 is provided inside the motor. During operation, the motor shaft 14 rotates at a high speed around its axis. An axial voltage is formed on the motor shaft 14. As the charge accumulated in the motor rotor continuously increases, the axial voltage generates an axial current through the conduction path. A conductive component is provided inside the motor so that the current can flow through the set path, thereby avoiding the electric corrosion and damage of the bearing 15 by the current, ensuring the reliable operation of the bearing 15, extending the service life of the motor, and ensuring the NVH performance of the vehicle and improving the user's comfort.

[0037] Specifically, the motor is provided with a housing 1. The housing 1 is arranged on the outermost side of the motor, which can support and protect the internal components of the motor, isolate the internal components of the motor from the external environment, thereby ensuring the stable operation of the internal components of the motor and avoiding the pollution of the external environment by the internal components of the motor. The housing 1 can also provide an installation position for the internal components of the motor. An installation cavity 13 is formed inside the housing 1, and a conductive structure 3 can be arranged inside the installation cavity 13. The conductive structure 3 can be set as a steel block, etc., and the conductive structure 3 is arranged in contact with the inner wall of the housing 1, so that the current inside the motor can be led out of the motor through the conductive structure 3, ensuring the reliable operation of the motor.

[0038] Furthermore, the motor is provided with a motor shaft 14. One end of the motor shaft 14 is located inside the installation cavity 13 of the motor. The motor is also provided with a bearing 15. The bearing 15 is arranged between the motor shaft 14 and the housing 1, which can support the motor shaft 14 and enable the motor shaft 14 to rotate relative to the housing 1, ensuring the normal operation of the motor shaft 14. A conductive component 2 is also provided inside the motor. The conductive component 2 is installed at the end of the motor shaft 14 and can be connected to the end of the motor shaft 14 through clamping or connecting parts, etc. While the conductive component 2 is connected to the end of the motor shaft 14, it is spaced apart from the bearing 15. When the conductive component 2 is installed at the end of the motor shaft 14, the conductive component 2 can be elastically pressed towards the conductive structure 3 along the axial direction of the motor shaft 14, so that the current generated during the operation of the motor shaft 14 can be conducted along the motor shaft 14 to the conductive component 2, and then conducted to the conductive structure 3 through the conductive component 2, so as to be conducted to the outside of the motor through the conductive structure 3.

[0039] Conducting the current generated by the motor shaft 14 to the outside of the motor can ensure the reliability of the motor operation, extend the service life of the motor, and further improve the NVH performance of the entire vehicle to improve user comfort. The bearing 15 is separated from the conductive component 2, which can reduce the flow of current toward the bearing 15, ensure the reliability of the bearing 15 operation, extend the service life of the bearing 15, shorten the current flow path, and improve the current extraction efficiency. At the same time, the bearing 15 is a common bearing 15 with a simple structure, which can reduce the installation cost.

[0040] According to the motor of the embodiment of the utility model, the conductive component 2 is arranged at the end of the motor shaft 14 and is spaced apart from the bearing 15, so that the shaft current can be directly transmitted from the motor shaft 14 to the conductive component 2, which can improve the current extraction efficiency, ensure the operating reliability of the bearing 15, and extend the service life of the motor, thereby improving the NVH performance of the whole vehicle to improve the user comfort. The bearing 15 is a common bearing 15 with a simple structure, which can reduce the installation cost, improve the use effect, and have a wider range of applications.

[0041] In some embodiments, the conductive component 2 includes an elastic member 21 and a conductive ball 22 , one end of the elastic member 21 is fixed relative to the motor shaft 14 , the conductive ball 22 is located at the other end of the elastic member 21 , and the elastic member 21 is used to press the conductive ball 22 toward the conductive structure 3 .

[0042] Specifically, a conductive component 2 is disposed at the end of the motor shaft 14. The current generated by the motor shaft 14 can be conducted to the conductive structure 3 through the conductive component 2, and then conducted to the outside of the motor, which can ensure the reliability of the motor operation. Figures 1 - 6 As shown, the conductive component 2 is provided with an elastic member 21 and a conductive ball 22. The elastic member 21 can be set as a spring, etc., and the conductive ball 22 can be set as a steel ball, etc., so that the conductive component 2 has a simple structure and can reduce the setting cost and subsequent maintenance cost. One end of the elastic member 21 can be relatively fixed to the motor shaft 14, and the conductive ball 22 is located at the other end of the elastic member 21, that is, the conductive ball 22 is located at the end of the elastic member 21 away from the motor shaft 14.

[0043] Furthermore, the conductive structure 3 is also arranged at one end of the elastic member 21 away from the motor shaft 14. When the conductive component 2 is installed at the end of the motor shaft 14, one end of the elastic member 21 is exerted with force by the conductive ball 22, so that the elastic member 21 is compressed. At this time, the elastic member 21 can exert a reaction force on the conductive ball 22, that is, an elastic force, so that the conductive ball 22 can be elastically pressed toward the conductive structure 3, so that the conductive ball 22 can be in close contact with the conductive structure 3, thereby ensuring the reliability of current conduction. The structure is simple and the setting cost can be reduced.

[0044] In some embodiments, the conductive component 2 further includes a mounting shell 23. The motor shaft 14 is formed with an axial through-hole 141. The mounting shell 23 is mounted at the through-hole 141. An installation groove 231 is formed inside the mounting shell 23. The installation groove 231 is formed with an installation opening 232. Both the elastic member 21 and the conductive ball 22 are located inside the installation groove 231, and the elastic member 21 is used to push at least a part of the conductive ball 22 out of the installation opening 232 to press against the conductive structure 3.

[0045] Specifically, the conductive component 2 is provided with an elastic member 21 and a conductive ball 22. The elastic member 21 can apply an elastic force to the conductive ball 22 to press against the conductive structure 3, thereby ensuring the reliability of current conduction. And as Figures 1 - 2 shown, the conductive component 2 is further provided with a mounting shell 23. The mounting shell 23 is also made of a conductive material. An installation groove 231 is formed inside the mounting shell 23. Both the elastic member 21 and the conductive ball 22 are arranged inside the installation groove 231. The motor shaft 14 is formed with a shaft hole 141. The shaft hole 141 extends along the axial direction of the motor shaft 14 and penetrates the motor shaft 14. And the conductive component 2 is arranged at the end of the motor shaft 14, so that the mounting shell 23 can be mounted at the shaft hole 141 by interference fit or the like, and the installation is convenient.

[0046] Furthermore, as Figure 2 shown, both the elastic member 21 and the conductive ball 22 are arranged inside the installation groove 231. And the installation groove 231 is formed with an installation opening 232. The installation opening 232 is arranged on the side of the mounting shell 23 away from the motor shaft 14, that is, the installation opening 232 is arranged to open towards the conductive structure 3. The elastic member 21 is arranged on the side of the installation groove 231 away from the installation opening 232. The conductive ball 22 is arranged close to the installation opening 232. And the elastic member 21 can push at least a part of the conductive ball 22 out of the installation opening 232 to press against the conductive structure 3, thereby ensuring the reliability of the contact between the conductive ball 22 and the conductive structure 3, and the structure is simple.

[0047] At the same time, the conductive ball 22 is arranged in a spherical structure. The mounting shell 23 is in a cylindrical structure. The shaft hole 141 is coaxially arranged with the motor shaft 14. The conductive ball 22 is connected to the motor shaft 14 through the mounting shell 23. And the mounting shell 23 is mounted at the shaft hole 141, so that the center of the conductive ball 22 and the axis of the motor shaft 14 are located on the same straight line. And the conductive ball 22 is a sphere, the conductive structure 3 is a block structure, and the conductive ball 22 and the conductive structure 3 are in point contact. When the motor shaft 14 rotates, the linear velocity at the contact point is zero or small, so that there is no frictional loss or small frictional loss between the conductive ball 22 and the conductive structure 3, and the service life of the conductive component 2 and the conductive structure 3 can be prolonged.

[0048] In some embodiments, the conductive component 2 further includes a mounting shell 23, the motor shaft 14 is formed with an axially open axial hole 141, the mounting shell 23 is mounted on the end of the motor shaft 14, a mounting groove 231 connected to the axial hole 141 is formed in the mounting shell 23, the mounting groove 231 is formed with a mounting opening 232 at the end away from the axial hole 141, the elastic member 21 is mounted in the axial hole 141, the conductive ball 22 is located in the mounting groove 231, and the elastic member 21 is used to push at least a portion of the conductive ball 22 out of the mounting opening 232 to be pressed against the conductive structure 3.

[0049] Specifically, the conductive component 2 is provided with an elastic member 21 and a conductive ball 22. The elastic member 21 can apply an elastic force to the conductive ball 22 to press toward the conductive structure 3, thereby ensuring the reliability of current conduction. Figures 3 - 6 As shown, the conductive component 2 is also provided with a mounting shell 23, and the mounting shell 23 is also made of conductive material. A mounting groove 231 is formed inside the mounting shell 23, and an axial hole 141 is formed on the motor shaft 14. The axial hole 141 is arranged at the end of the motor shaft 14 and is open axially toward the conductive structure 3, and the conductive component 2 is arranged at the end of the motor shaft 14. The mounting shell 23 of the conductive component 2 is installed at the end of the motor shaft 14 and can be connected to the end face of the motor shaft 14 by means of a connecting member 4 or the like. The connecting member 4 can be set to a bolt or the like, and the connection method is simple and the installation is convenient.

[0050] Furthermore, if Figures 3 - 4 As shown, the mounting shell 23 is formed with a mounting groove 231. When the mounting shell 23 is installed at the end of the motor shaft 14, the mounting groove 231 is connected to the shaft hole 141, the elastic member 21 is arranged in the shaft hole 141, the conductive ball 22 is located in the mounting groove 231, and the mounting groove 231 is formed with a mounting opening 232. The mounting opening 232 is arranged on the side of the mounting shell 23 away from the shaft hole 141, that is, the mounting opening 232 is open toward the conductive structure 3, the elastic member 21 is arranged on the side away from the mounting opening 232, the conductive ball 22 is arranged close to the mounting opening 232, and the elastic member 21 can push at least part of the conductive ball 22 out of the mounting opening 232 to be pressed against the conductive structure 3, thereby ensuring the reliability of the contact between the conductive ball 22 and the conductive structure 3, and the structure is simple.

[0051] At the same time, the conductive ball 22 is set to a spherical structure, the mounting shell 23 is a cylindrical structure, the axial hole 141 is coaxially arranged with the motor shaft 14, and the conductive ball 22 is installed on the motor shaft 14 through the mounting shell 23, so that the center of the conductive ball 22 and the axis of the motor shaft 14 are located in the same straight line, and the conductive ball 22 is a sphere, and the conductive structure 3 is a block structure. The conductive ball 22 and the conductive structure 3 are in point contact. When the motor shaft 14 rotates, the linear velocity at the contact point is zero or small, so that there is no friction loss or small friction loss between the conductive ball 22 and the conductive structure 3, which can extend the service life of the conductive component 2 and the conductive structure 3.

[0052] In some embodiments, the inner diameter of the installation opening 232 is smaller than the diameter of the conductive ball 22. As Figures 1 - 6 shown, the conductive assembly 2 is provided with an installation shell 23. The installation shell 23 is installed at the end of the motor shaft 14 and forms an installation groove 231. The installation groove 231 forms an installation opening 232. The installation opening 232 is formed on the side of the installation shell 23 close to the conductive structure 3 and is arranged to open towards the conductive structure 3. The conductive ball 22 is arranged close to the installation opening 232. The elastic member 21 can push at least a part of the conductive ball 22 out of the installation opening 232 to press against the conductive structure 3, thereby ensuring the reliability of the contact between the conductive ball 22 and the conductive structure 3. And the inner diameter of the installation opening 232 is set to be smaller than the diameter of the conductive ball 22, so that the conductive ball 22 cannot slide out of the installation groove 231 from the installation opening 232 after being installed in the installation groove 231, thereby ensuring the installation reliability.

[0053] Wherein, the elastic force of the elastic member 21 can be adjusted according to the usage situation, so that the conductive ball 22 can always fit against the conductive structure 3, and it can also avoid excessive acting force during contact, thereby reducing wear and extending the service life.

[0054] When the motor is running, the motor shaft 14 rotates rapidly, thereby generating an axial voltage. As the charge accumulated in the motor rotor increases continuously, the axial voltage generates an axial current through the conduction path. In this embodiment, the axial current can be transmitted to the installation shell 23 of the conductive assembly 2 through the motor shaft 14, conducted to the elastic member 21 and the conductive ball 22 through the installation shell 23. The current at the elastic member 21 can also be conducted to the conductive ball 22, and then conducted to the conductive structure 3 through the conductive ball 22, so as to be conducted to the outside of the motor through the conductive structure 3, thereby ensuring the reliability of the motor operation, and avoiding the influence of the current on the bearing 15 and extending the service life of the bearing 15. And at this time, the bearing 15 in the motor can be set as a common bearing, with a simple structure and reduced motor setting cost.

[0055] In some embodiments, the housing 1 includes a main housing 11 and a top cover 12. The top cover 12 is connected to the end of the main housing 11 to jointly define an installation cavity 13. The motor shaft 14 is rotatably supported by the main housing 11 through a bearing 15. The conductive structure 3 is arranged on the top cover 12 and is axially opposite to the motor shaft 14.

[0056] Specifically, as Figures 1 - 6As shown in the figure, the motor is provided with a motor housing, which is arranged on the outermost side of the motor, can support and protect the internal parts of the motor, and can provide an installation position for the internal parts of the motor. The housing 1 is provided with a main housing 11 and a top cover 12. The top cover 12 is connected to the end of the main housing 11 and can jointly define an installation cavity 13 with the main housing 11. Among them, the main housing 11 can be provided with a connected intermediate housing 111 and an end cover 112. The end cover 112 is connected to one end of the intermediate housing 111, and the top cover 12 is connected to the side of the end cover 112 facing away from the intermediate housing 111.

[0057] Moreover, the intermediate housing 111, the end cover 112 and the top cover 12 jointly define an installation cavity 13. The motor shaft 14 can be rotatably supported on the main housing 11 through a bearing 15, that is, the motor shaft 14 can pass through the end cover 112 of the main housing 11, and a bearing 15 is arranged between the end cover 112 and the motor shaft 14 to support the motor shaft 14. At the same time, the conductive structure 3 is arranged on the top cover 12, and the conductive structure 3 is installed in the middle of the top cover 12, so that the conductive structure 3 and the motor shaft 14 can be axially opposed to each other, and further the conductive ball 22 can be in contact with the conductive structure 3 to ensure the reliability of current conduction.

[0058] In some embodiments, the top cover 12 is provided with a fixing groove 121 that opens towards the motor shaft 14, and the conductive structure 3 is press-fitted into the fixing groove 121.

[0059] Specifically, the top cover 12 is connected to one end of the main housing 11, and the inner side wall of the top cover 12 is provided with a fixing groove 121 that opens towards the motor shaft 14. The conductive structure 3 can be set as a circular sheet structure or a rectangular block, etc. The structure of the conductive structure 3 matches the shape of the fixing groove 121, so that the conductive structure 3 can be arranged in the fixing groove 121, and the conductive structure 3 and the fixing groove 121 are in an interference fit, so that the conductive structure 3 can be clamped in the fixing groove 121 to ensure the connection reliability and convenient installation. In actual use, the conductive structure 3 can partially protrude from the fixing groove 121 or be located in the fixing groove 121. Just adjust the elastic member 21 to make the conductive ball 22 contact the conductive structure 3.

[0060] In some embodiments, the top cover 12 is provided with a fixing hole 122. The conductive structure 3 includes a conductive part 31 and a limiting part 32. The conductive part 31 is detachably connected in the fixing hole 122 and contacts the conductive component 2, and the limiting part 32 is connected to the side of the conductive part 31 facing away from the conductive component 2 and is limited and abutted against the top cover 12.

[0061] Specifically, as Figure 6As shown in the figure, the top cover 12 is connected to one end of the main housing 11, and a fixing hole 122 is provided in the middle of the top cover 12. A boss protruding towards the motor shaft 14 is provided at the fixing hole 122, which can ensure the structural strength at the fixing hole 122 and extend the service life of the top cover 12. The conductive structure 3 is provided with a conductive part 31 and a limiting part 32. The conductive part 31 and the limiting part 32 are connected and integrated, and both can be made of conductive materials. The conductive part 31 is located on the side of the conductive structure 3 close to the motor shaft 14. The conductive part 31 is detachably connected to the fixing hole 122. Threads can be provided on the outer peripheral wall of the conductive part 31, and threads are also provided on the inner peripheral wall of the fixing hole 122. When the conductive part 31 is placed in the fixing hole 122, the conductive part 31 can be in threaded cooperation with the fixing hole 122, so that the conductive structure 3 is installed on the top cover 12. In actual use, the conductive structure 3 can also be connected to the top cover 12 through a connecting part 4 or the like.

[0062] Furthermore, the conductive part 31 is connected to the fixing hole 122 and can be in contact with the conductive component 2, so that the conductive component 2 can transmit current to the outside of the motor through the conductive part 31, ensuring the reliability of the motor operation. The limiting part 32 is connected to the side of the conductive part 31 facing away from the conductive component 2. The outer diameter of the limiting part 32 is larger than the inner diameter of the fixing hole 122. When the conductive part 31 is placed in the fixing hole 122, the limiting part 32 can be in limiting abutment with the top cover 12, ensuring the installation reliability of the conductive structure 3. The conductive part 31 is detachably connected to the fixing hole 122, so that the user can remove the conductive structure 3 from the outside of the motor and observe the wear and corrosion conditions of the conductive ball 22 through the fixing hole 122, which is convenient for later maintenance and the like.

[0063] In some embodiments, the top cover 12 is provided with a fixing hole 122, and the conductive structure 3 includes a conductive member 33 and a abutting member 34. The conductive member 33 is located in the fixing hole 122 and is in contact with the conductive component 2, and the abutting member 34 is connected to the top cover 12 and is in limiting pressure on the side of the conductive member 33 facing away from the motor shaft 14.

[0064] Specifically, as Figure 5 shown in the figure, the top cover 12 is connected to one end of the main housing 11, and a fixing hole 122 is provided in the middle of the top cover 12. A boss protruding towards the motor shaft 14 is provided at the fixing hole 122, which can ensure the structural strength at the fixing hole 122 and extend the service life of the top cover 12. The conductive structure 3 is provided with a conductive member 33 and a abutting member 34. The conductive member 33 and the abutting member 34 are connected. The conductive member 33 can be made of conductive material. The conductive member 33 is located on the side of the conductive structure 3 close to the motor shaft 14. The conductive member 33 is located in the fixing hole 122 and can be in contact with the conductive component 2, so that the conductive component 2 can transmit current to the outside of the motor through the conductive part 31, ensuring the reliability of the motor operation.

[0065] Further, the abutting member 34 is connected to the side of the conductive member 33 facing away from the conductive assembly 2. The outer diameter of the abutting member 34 is larger than the inner diameter of the fixing hole 122. When the conductive member 33 is placed in the fixing hole 122, the abutting member 34 can be limited and pressed against the side of the conductive member 33 facing away from the motor shaft 14, and the abutting member 34 can be fixedly connected to the top cover 12 through a connecting member 4 or the like. Thus, the conductive structure 3 is connected to the top cover 12. The connecting member 4 can be set as a bolt or the like to ensure reliable connection and simple and convenient installation. In actual use, threads can be provided on the outer peripheral wall of the conductive member 33, and threads are also provided on the inner peripheral wall of the fixing hole 122. Thus, when the conductive member 33 is placed in the fixing hole 122, the conductive member 33 can be in threaded cooperation with the fixing hole 122, and the user can remove the conductive structure 3 from outside the motor and observe the wear condition of the conductive ball 22 through the fixing hole 122, which is convenient for later maintenance and the like.

[0066] The present utility model also proposes a vehicle.

[0067] The vehicle according to the embodiment of the present utility model includes the motor according to any one of the above.

[0068] In the vehicle according to the embodiment of the present utility model, the conductive assembly 2 is arranged at the end of the motor shaft 14 and is spaced apart from the bearing 15, so that the shaft current can be directly conducted from the motor shaft 14 to the conductive assembly 2, which can improve the current conduction efficiency, ensure the operation reliability of the bearing 15, extend the service life of the motor, and further improve the NVH performance of the whole vehicle to improve the user's comfort. Moreover, the bearing 15 is a common bearing 15 with a simple structure, so that the setting cost can be reduced, the use effect is better, and the applicable range is wider.

[0069] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0070] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A motor, characterized in that, include: A housing, wherein a mounting cavity is formed in the housing, and a conductive structure is disposed in the mounting cavity; A motor shaft, one end of which is located in the mounting cavity, and the motor shaft is rotatably supported on the housing through a bearing; a conductive component, the conductive component is connected to the end of the motor shaft and is spaced apart from the bearing, the conductive component is suitable for elastically pressing toward the conductive structure along the axial direction of the motor shaft, the conductive component comprises an elastic member, a conductive ball and a mounting shell, one end of the elastic member is relatively fixed to the motor shaft, the conductive ball is located at the other end of the elastic member, the mounting shell is mounted on the motor shaft, a mounting groove is formed in the mounting shell, the mounting groove is formed with a mounting opening, the conductive ball is located in the mounting groove, and the elastic member is used to push at least part of the conductive ball out of the mounting opening to press the conductive ball toward the conductive structure; Wherein, the inner diameter of the mounting opening is smaller than the diameter of the conductive ball.

2. The motor according to claim 1, characterized in that, The motor shaft is formed with an axial hole which penetrates along the axial direction, the mounting shell is mounted at the axial hole, and the elastic member is located in the mounting groove.

3. The motor according to claim 1, characterized in that, The motor shaft is formed with an axially open axial hole, the mounting shell is installed at the end of the motor shaft, the mounting groove is connected to the axial hole, the mounting groove is formed with the mounting opening at one end away from the axial hole, and the elastic member is installed in the axial hole.

4. The motor according to claim 1, characterized in that, The shell includes a main shell and a top cover, the top cover is connected to the end of the main shell to jointly define the installation cavity, the motor shaft is rotatably supported on the main shell through a bearing, and the conductive structure is arranged on the top cover and is distributed axially opposite to the motor shaft.

5. The motor according to claim 4, wherein The top cover is provided with a fixing groove which is open toward the motor shaft, and the conductive structure is interference-engaged in the fixing groove.

6. The motor according to claim 4, wherein The top cover is provided with a fixing hole, and the conductive structure includes a conductive part and a limiting part. The conductive part is detachably connected to the fixing hole and contacts the conductive component, and the limiting part is connected to a side of the conductive part away from the conductive component and stops against the top cover.

7. The motor according to claim 4, wherein, The top cover is provided with a fixing hole, and the conductive structure includes a conductive member and a stop member, wherein the conductive member is located in the fixing hole and contacts the conductive component, and the stop member is connected to the top cover and is limitedly pressed against a side of the conductive member away from the motor shaft.

8. A vehicle, characterized in that, A motor comprising any one of claims 1-7.

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