Motor, power assembly and motor driving equipment
By setting conductive parts at the conductive oil blockage of the motor, the conductive path between the motor shaft and the housing is simplified, and the problems of long and high cost in the prior art are solved, and stability is improved and costs are reduced.
Patent Information
- Application Number
- CN202421917893.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In the existing motor conductivity scheme, the transmission path is long and special parts are added, resulting in no advantages in stability and cost.
The conductive parts are arranged at the conductive oil block of the motor. The conductive parts electrically connect the conductive oil block with the oil nozzle, thereby electrically connecting the motor shaft and the casing, simplifying the conductive path.
Reduces the delivery path, reduces the delivery component, improves the delivery stability, and reduces the cost.
Smart Images
Figure CN222966847U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of motors, and in particular, to a motor, a powertrain, and a motor drive device. Background Art
[0002] With the rapid development of electric vehicle technology, higher requirements are put forward for the motors of electric vehicles. Generally, shaft voltage will be generated when the motor works. At present, the current conduction solutions mostly use a combination of conductive bearings, conductive shrapnel, grounding posts, etc. to realize the connection of the conduction loop. The shaft voltage will be transmitted to the inner ring of the motor bearing through the rotating shaft of the motor, and then sequentially pass through the rolling elements between the inner and outer rings of the motor bearing, the outer ring of the motor bearing, the conductive shrapnel, the grounding post to the motor housing, and then go to the ground through the housing.
[0003] This solution has more special parts added, a longer transmission path, and is not advantageous in terms of stability and cost. Utility Model Content
[0004] Based on this, a motor, a powertrain, and a motor drive device are provided. A conductive member is provided at the conductive oil plug of the motor. The conductive member electrically connects the conductive oil plug and the oil nozzle, thereby electrically connecting the motor shaft and the housing. Compared with the existing conduction through conductive bearings, conductive single pieces, grounding posts, etc., the transmission path is reduced, the transmission components are also reduced, the transmission stability is improved, and the cost is reduced.
[0005] To this end, in a first aspect, an embodiment of the present application provides a motor, including: a motor shaft provided with an oil passage; a housing having an oil nozzle extending into the oil passage at one end and a guide oil pipe communicating with the oil nozzle at the other end to input oil into the oil passage; a conductive oil plug located in the oil passage, the conductive oil plug including a body portion, the body portion being annularly arranged and the peripheral side wall of the body portion being connected to the inner wall of the motor shaft, a blocking portion being provided at one end of the body portion away from the housing, the blocking portion being used to block the oil in the oil passage from flowing back into the inner cavity of the body portion, and a through hole for the oil nozzle to extend into being provided in the blocking portion; and a conductive member provided in the inner cavity of the body portion, the conductive member extending along the radial direction of the body portion, one end of the conductive member abutting against the conductive oil plug and the other end abutting against the oil nozzle.
[0006] In one embodiment, the body portion is provided with a mounting hole, and one end of the conductive member extends into the mounting hole and is connected to the body portion.
[0007] In one embodiment, the conductive member includes a carbon fiber bundle and a conductive ring. The conductive ring sleeves one end of the carbon fiber bundle to fix the carbon fiber bundle. The conductive ring extends into the mounting hole and is connected to the body portion. The other end of the carbon fiber bundle abuts against the oil nozzle.
[0008] In one embodiment, a positioning step is provided in the mounting hole, and one end of the conductive ring facing the center of the body portion abuts against the positioning step.
[0009] In one embodiment, a plurality of the conductive members are provided and arranged at intervals along the inner peripheral side of the body portion, and a plurality of the mounting holes are provided and arranged at intervals along the inner peripheral side of the body portion.
[0010] In one embodiment, a blocking member is further included. The blocking member is annularly arranged and mounted on the outer peripheral side of the oil nozzle, and the blocking member is located between the blocking portion and the conductive member.
[0011] In one embodiment, the outer diameter of one end of the oil nozzle for extending into the through hole gradually decreases in a direction away from the machine housing.
[0012] In one embodiment, the oil guide pipe fits against the machine housing and extends along the radial direction of the oil nozzle.
[0013] In a second aspect, an embodiment of the present application provides a power assembly, which includes a motor controller and the motor according to any one of the above. The motor controller is used to control the operation of the motor.
[0014] In a third aspect, an embodiment of the present application provides a motor driving device, which includes a mounting bracket and the power assembly as described above. The power assembly is mounted on the mounting bracket.
[0015] According to the motor, power assembly and motor driving device provided by the embodiments of the present application, the motor includes a motor shaft, a machine housing, a conductive oil plug and a conductive member; an oil passage is provided in the motor shaft; one end of the machine housing is provided with an oil nozzle extending into the oil passage, and the other end is provided with an oil guide pipe communicating with the oil nozzle to input oil into the oil passage; the conductive oil plug is located in the oil passage. The oil plug includes a body portion, the body portion is annularly arranged and the peripheral side wall of the body portion is connected to the inner wall of the motor shaft. One end of the body portion away from the machine housing is provided with a blocking portion, and the blocking portion is used to block the oil in the oil passage from flowing back into the inner cavity of the body portion. A through hole for the oil nozzle to extend into is provided in the blocking portion; the conductive member is arranged in the inner cavity of the body portion, the conductive member extends along the radial direction of the body portion, one end of the conductive member abuts against the conductive oil plug and the other end abuts against the oil nozzle. The shaft voltage at the motor shaft is transmitted to the conductive oil plug, then transmitted to the oil nozzle through the conductive oil plug, and finally transmitted to the machine housing through the oil nozzle, and then grounded through the machine housing. Compared with the existing conduction through conductive bearings, conductive single chips, grounding posts, etc., the present application reduces the transmission path, reduces the transmission components, improves the transmission stability and reduces the cost. Description of the Drawings
[0016] Figure 1Shows a schematic structural diagram of a motor provided by an embodiment of the present application;
[0017] Figure 2 Shows a cross-sectional view of a motor provided by an embodiment of the present application;
[0018] Figure 3 Shows Figure 2 An enlarged view of part A shown;
[0019] Figure 4 Shows an exploded view of a conductive oil plug and a conductive member provided by an embodiment of the present application;
[0020] Figure 5 Shows a schematic structural diagram of a housing provided by an embodiment of the present application.
[0021] Explanation of reference numerals:
[0022] 1. Motor shaft; 11. Oil passage; 12. Motor bearing; 2. Housing; 21. Oil nozzle; 22. Oil guide pipe; 3. Conductive oil plug; 31. Body part; 311. Mounting hole; 312. Positioning step; 32. Sealing part; 321. Through hole; 4. Conductive member; 41. Carbon fiber bundle; 42. Conductive ring. Detailed implementation manners
[0023] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0024] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape and size of the components in actual implementation. The types, quantities and proportions of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.
[0025] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present invention.
[0026] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential", etc. cited in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of simplified 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 construed as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0027] Currently, most of the conductive solutions use a combination of conductive bearings, conductive shrapnel, grounding posts, etc. to achieve the connection of the conductive loop. The shaft voltage will be transmitted through the rotating shaft of the motor to the inner ring of the motor bearing, and then successively through the rolling elements between the inner and outer rings of the motor bearing, the outer ring of the motor bearing, the conductive shrapnel, the grounding post to the motor housing, and then to the ground through the housing. This solution has more special parts added, a longer transmission path, and is not advantageous in terms of stability and cost.
[0028] To solve the above technical solution, Figure 1 The structural schematic diagram of a motor provided by an embodiment of the present application is shown. Figure 2 The cross-sectional view of a motor provided by an embodiment of the present application is shown. Figure 3 Shown Figure 2 The enlarged view of part A shown Figure 4 The exploded view of a conductive oil plug and a conductive part provided by an embodiment of the present application is shown.
[0029] The present application includes a motor, which includes a motor shaft 1, a housing 2, a conductive oil plug 3, and a conductive part 4. The motor shaft 1 is provided with an oil passage 11; one end of the housing 2 is provided with an oil nozzle 21 extending into the oil passage 11, and the other end is provided with an oil guide pipe 22 communicated with the oil nozzle 21 to input oil liquid into the oil passage 11; the conductive oil plug 3 is located in the oil passage 11. The conductive oil plug 3 includes a body part 31, the body part 31 is arranged in a ring shape and the circumferential side wall of the body part 31 is connected to the inner wall of the motor shaft 1. One end of the body part 31 away from the housing 2 is provided with a blocking part 32, and the blocking part 32 is used to block the oil liquid in the oil passage 11 from flowing back into the inner cavity of the body part 31. The blocking part 32 is provided with a through hole 321 for the oil nozzle 21 to extend into; the conductive part 4 is arranged in the inner cavity of the body part 31, the conductive part 4 extends along the radial direction of the body part 31, one end of the conductive part 4 abuts against the conductive oil plug 3 and the other end abuts against the oil nozzle 21.
[0030] It should be understood that the motor includes a motor shaft 1 and motor bearings 12. There are two motor bearings 12, which are respectively sleeved at both ends of the motor shaft 1 along the length direction to ensure the stable installation of the motor shaft 1 in the housing 2. The material of the motor shaft 1 is a conductive material, such as a metal material. The motor shaft 1 is arranged in a hollow tubular shape to form an oil passage 11. The hollow setting can reduce the weight of the motor shaft 1, and thus reduce the weight of the motor. Oil is introduced into the oil passage 11, and the oil flows in the oil passage 11, thereby taking out the heat generated by the rotor of the motor and the rotation of the motor shaft 1. Among them, the central axis of the oil passage 11 coincides with the central axis of the motor shaft 1.
[0031] The material of the housing 2 is a conductive material, such as metal. The housing 2 includes a resolver cover plate. The resolver cover plate is in a disc shape. One end of the resolver cover plate is provided with an oil nozzle 21. The material of the oil nozzle 21 is the same as that of the resolver cover plate, that is, the oil nozzle 21 and the resolver cover plate are integrally formed. The end of the resolver cover plate facing away from the oil nozzle is provided with an oil guide pipe 22. The material of the oil guide pipe 22 is the same as that of the resolver cover plate, and the oil guide pipe 22 and the resolver cover plate are integrally formed. The oil guide pipe 22 is communicated with the oil nozzle 21, that is, the oil can flow from the oil guide pipe 22 into the oil nozzle 21.
[0032] The material of the conductive oil plug 3 is a conductive material, such as metal or other materials, which is not limited in this application. The conductive oil plug 3 includes a body part 31 and a plugging part 32. The material of the body part 31 is the same as that of the plugging part 32, and the body part 31 and the plugging part 32 are integrally formed. The body part 31 is arranged in a ring shape, and the outer peripheral side of the body part 31 is attached to and connected with the inner wall of the motor shaft 1. When the motor shaft 1 rotates, the body part 31 rotates along with the rotation of the motor shaft 1. One end of the body part 31 away from the housing 2 extends towards the inside of the body part 31 to form a plugging part 32. The plugging part 32 can block the oil in the oil passage 11 from flowing back into the inner cavity of the body part 31. The plugging part 32 is also provided with a through hole 321, and the aperture of the through hole 321 is slightly larger than the outer diameter of the oil nozzle 21 to facilitate the insertion of the oil nozzle 21.
[0033] One end of the oil nozzle 21 of the housing 2 away from the oil guide pipe 22 extends into the body part 31 and partially extends into the oil passage 11 through the through hole 321. The oil flows from the oil guide pipe 22 into the oil nozzle 21, and then from the oil nozzle 21 into the oil passage 11. During operation, the motor shaft 1 rotates around its own central axis so that the oil adheres to the inner wall of the motor shaft 1, that is, the oil in the motor shaft 1 will not flow into the body part 31 through the through hole 321.
[0034] The material of the conductive member 4 is a conductive material, such as metal, carbon fiber, etc., and this application does not limit it. This application does not limit the shape of the conductive member 4. The conductive member 4 can be in the shape of a cuboid or a cylinder. The conductive member 4 is located inside the body portion 31 and extends along the radial direction of the body portion 31. One end of the conductive member 4 along its own length direction is used to abut against the outer wall of the nozzle 21, and the other end of the conductive member along its own length direction is used to abut against the conductive oil plug 3. That is, the shaft voltage at the motor shaft 1 is transmitted to the conductive oil plug 3, then transmitted to the nozzle 21 through the conductive oil plug 3, and finally transmitted from the nozzle 21 to the machine shell 2 and then to the ground through the machine shell 2. Compared with the existing conduction through conductive bearings, conductive single pieces, grounding posts, etc., this application reduces the transmission path, reduces the transmission components, improves the transmission stability and reduces the cost.
[0035] Refer to Figure 4 , in some optional embodiments, the body portion 31 is provided with a mounting hole 311, and one end of the conductive member 4 extends into the mounting hole 311 and is connected to the body portion 31. The peripheral wall of the body portion 31 is provided with a mounting hole 311. This application does not limit the shape of the mounting hole 311, and the shape of the mounting hole 311 conforms to the shape of the conductive member 4. One end of the conductive member 4 extends into the mounting hole 311 and is connected to the body portion 31. The conductive member 4 can be fixedly connected to the body portion 31, such as by welding, etc. The conductive member 4 and the body portion 31 can be detachably connected to the body portion 31, such as by plugging, etc. When the conductive member 4 is detachably connected to the body portion 31, if either the conductive member 4 or the conductive oil plug 3 is damaged, the damaged one can be replaced, thereby reducing the cost.
[0036] In some optional embodiments, the conductive member 4 includes a carbon fiber bundle 41 and a conductive ring 42. The conductive ring 42 is sleeved on one end of the carbon fiber bundle 41 to fix the carbon fiber bundle 41. The conductive ring 42 extends into the mounting hole 311 and is connected to the body portion 31. The other end of the carbon fiber bundle 41 abuts against the nozzle 21. Carbon fiber is a conductive material, so the carbon fiber bundle 41 can conduct electricity. The carbon fiber bundle 41 includes multiple carbon fiber strips, and the carbon fiber strips can be deformed, so that the carbon fiber bundle 41 can also be deformed. In order to improve the conductive effect between the body portion 31 and the nozzle 21, the conductive ring 42 sleeved and fixes the multiple carbon fiber strips to form the carbon fiber bundle 41. The conductive ring 42 is arranged in a circular ring shape, and the mounting hole 311 is arranged in a circular hole shape. The material of the conductive ring 42 is a metal material, such as copper material. The conductive ring 42 is located in the mounting hole 311 and is connected to the body portion 31, so that the conductive ring 42 is electrically connected to the body portion 31. In order to improve the conductive effect between the conductive ring 42 and the body portion 31, a conductive adhesive can be provided between the conductive ring 42 and the body portion 31, and the connection stability between the conductive ring 42 and the body portion 31 can also be improved.
[0037] One end of the carbon fiber bundle 41 away from the conductive ring 42 is in interference fit with the nozzle 21. That is, when the motor shaft 1 rotates, the conductive oil plug 3 rotates, thereby driving the carbon fiber bundle 41 to rotate relative to the nozzle 21. Since the carbon fiber bundle 41 can be deformed and is in interference fit with the nozzle 21, the carbon fiber bundle 41 always adheres to the nozzle 21, thereby improving the conductive effect between the conductive member 4 and the nozzle 21, and further improving the stability of conductive transmission.
[0038] In some alternative embodiments, a positioning step 312 is provided in the mounting hole 311, and one end of the conductive ring 42 facing the center of the body portion 31 abuts against the positioning step 312. The positioning step 312 is made of the same material as the body portion 31, and the positioning step 312 and the body portion 31 are integrally formed. When the conductive member 4 rotates with the body portion 31, a frictional force is generated between the carbon fiber bundle 41 and the nozzle 21, which drives the carbon fiber bundle 41 to move towards the center of the body portion 31, and further drives the conductive ring 42 to move towards the center of the body portion 31. One end of the conductive ring 42 facing the center of the body portion 31 abuts against the positioning step 312, which can block the movement of the conductive ring 42, thereby reducing the probability of the conductive ring 42 separating from the body portion 31, improving the stability of the installation of the conductive ring 42 and the body portion 31, and improving the conductive effect between the conductive ring 42 and the body portion 31.
[0039] In some alternative embodiments, a plurality of conductive members 4 are provided and arranged at intervals along the inner peripheral side of the body portion 31, and a plurality of mounting holes 311 are provided and arranged at intervals along the inner peripheral side of the body portion 31. A plurality of conductive members 4 are provided, and the number of the conductive members 4 can be two, three, four or other numbers. The number of the mounting holes 311 corresponds to the number of the conductive members 4. The provision of a plurality of conductive members 4 can improve the conductive effect between the conductive oil plug 3 and the nozzle 21. The plurality of conductive members 4 are arranged at intervals along the inner peripheral side of the body portion 31, and the positions of the plurality of mounting holes 311 correspond to the positions of the plurality of conductive members 4.
[0040] In one example, four conductive members 4 are provided, and the angle between the centers of two adjacent conductive members 4 is 90°, and four mounting holes 311 are provided and correspond to the conductive members 4.
[0041] In some alternative embodiments, it further includes a blocking member (not shown in the figure). The blocking member is arranged in a ring shape and installed on the outer peripheral side of the nozzle 21. The blocking member is located between the sealing portion 32 and the conductive member 4. Since the blocking member is arranged in a ring shape and the nozzle 21 is arranged as a circular tube, the blocking member is arranged as a circular ring. The blocking member is installed on the outer peripheral side of the nozzle 21, that is, the inner wall of the blocking member fits the outer peripheral wall of the nozzle 21, thereby preventing the oil from moving along the length direction of the outer peripheral wall of the nozzle 21. Since the blocking member is located between the sealing portion 32 and the conductive member 4, it can block the oil flow in the oil passage 11 of the motor shaft 1 from flowing to the conductive member 4, thereby improving the conductive effect between the conductive member 4 and the nozzle 21.
[0042] This application does not limit the connection method between the blocking member and the nozzle 21. In one example, the material of the blocking member is the same as that of the nozzle 21, and the blocking member protrudes from the nozzle 21. In one example, the material of the blocking member is different from that of the nozzle 21. The blocking member can be an elastic sealing ring, thereby improving the installation stability between the blocking member and the nozzle 21. The blocking member can also be made of metal. After the blocking member is sleeved on the outer peripheral side of the nozzle 21, the blocking member is welded to the nozzle 21.
[0043] Refer to Figures 2 - 3 and Figure 5 , Figure 5 which shows a schematic structural diagram of a housing provided by an embodiment of the present application. In some alternative embodiments, the outer diameter of one end of the nozzle 21 for extending into the through hole 321 gradually decreases in a direction away from the housing 2. The setting of the outer diameter of the nozzle 21 facilitates the insertion of the nozzle 21 into the through hole 321, thereby improving the installation convenience between the nozzle 21 and the conductive oil plug 3.
[0044] In some alternative embodiments, the oil guide pipe 22 fits the housing 2 and extends along the radial direction of the nozzle 21. That is, the oil guide pipe 22 is perpendicular to the nozzle 21. The oil guide pipe 22 fits the housing 2, which can further reduce the volume occupied by the oil guide pipe 22, thereby reducing the volume occupied by the motor.
[0045] Refer to Figures 1 - 5, the present application further includes a powertrain, which includes a motor controller and the motor described in any one of the above. The motor controller is used to control the operation of the motor. The motor includes a motor shaft 1, a housing 2, a conductive oil plug 3, and a conductive member 4. The motor shaft 1 is provided with an oil passage 11; one end of the housing 2 is provided with an oil nozzle 21 extending into the oil passage 11, and the other end is provided with an oil guide pipe 22 communicating with the oil nozzle 21 to input oil into the oil passage 11; the conductive oil plug 3 is located in the oil passage 11. The conductive oil plug 3 includes a body portion 31, the body portion 31 is annularly arranged and the peripheral side wall of the body portion 31 is connected to the inner wall of the motor shaft 1. One end of the body portion 31 away from the housing 2 is provided with a blocking portion 32 for blocking the oil in the oil passage 11 from flowing back into the inner cavity of the body portion 31. The blocking portion 32 is provided with a through hole 321 for the oil nozzle 21 to extend into; the conductive member 4 is arranged in the inner cavity of the body portion 31, the conductive member 4 extends along the radial direction of the body portion 31, one end of the conductive member 4 abuts against the conductive oil plug 3 and the other end abuts against the oil nozzle 21.
[0046] The shaft voltage at the motor shaft 1 is transmitted to the conductive oil plug 3, then transmitted to the oil nozzle 21 through the conductive oil plug 3, and finally transmitted from the oil nozzle 21 to the housing 2 and then to the ground through the housing 2. Compared with the existing conduction through conductive bearings, conductive single pieces, grounding posts, etc., the present application reduces the transmission path, reduces the transmission components, improves the transmission stability and reduces the cost.
[0047] The present application further includes a motor driving device, which includes a mounting bracket and the powertrain as described above, and the powertrain is mounted on the mounting bracket.
[0048] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0049] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.
Claims
1. A motor, characterized in that: include: The motor shaft (1) is provided with an oil passage (11); The casing (2) is provided with an oil nozzle (21) extending into the oil passage (11) at one end, and an oil guide pipe (22) communicating with the oil nozzle (21) at the other end so as to input oil into the oil passage (11); a conductive oil plug (3) located in the oil passage (11), the conductive oil plug (3) comprising a main body (31), the main body (31) being arranged in an annular shape and the peripheral side wall of the main body (31) being connected to the inner wall of the motor shaft (1), a sealing portion (32) being arranged at one end of the main body (31) away from the housing (2), the sealing portion (32) being used to prevent the oil in the oil passage (11) from flowing back to the inner cavity of the main body (31), and the sealing portion (32) being provided with a through hole (321) for the oil nozzle (21) to extend into; and A conductive member (4) is arranged in the inner cavity of the main body (31), the conductive member (4) extends radially along the main body (31), one end of the conductive member (4) abuts against the conductive oil plug (3) and the other end abuts against the oil nozzle (21).
2. The motor according to claim 1, characterized in that The main body (31) is provided with a mounting hole (311), and one end of the conductive member (4) extends into the mounting hole (311) and is connected to the main body (31).
3. The motor according to claim 2, characterized in that The conductive member (4) comprises a carbon fiber bundle (41) and a conductive ring (42); the conductive ring (42) is sleeved on one end of the carbon fiber bundle (41) to fix the carbon fiber bundle (41); the conductive ring (42) extends into the mounting hole (311) and is connected to the main body (31); the other end of the carbon fiber bundle (41) is in contact with the oil nozzle (21).
4. The motor according to claim 3, characterized in that A positioning step (312) is provided in the mounting hole (311), and one end of the conductive ring (42) facing the center of the main body (31) abuts against the positioning step (312).
5. The motor according to claim 2, characterized in that: A plurality of the conductive members (4) are provided and are arranged at intervals along the inner circumference of the main body (31); a plurality of the mounting holes (311) are provided and are arranged at intervals along the inner circumference of the main body (31).
6. The motor according to claim 1, characterized in that It also includes a blocking member, which is arranged in an annular shape and is installed on the outer peripheral side of the oil nozzle (21), and the blocking member is located between the blocking portion (32) and the conductive member (4).
7. The motor according to claim 1, characterized in that The outer diameter of one end of the oil nozzle (21) that is used to extend into the through hole (321) gradually decreases in a direction away from the housing (2).
8. The motor according to claim 1, characterized in that The oil guide pipe (22) is fitted to the housing (2) and extends in the radial direction of the oil nozzle (21).
9. A powertrain, characterized in that: The powertrain includes a motor controller and a motor as described in any one of claims 1 to 8, wherein the motor controller is used to control the operation of the motor.
10. A motor drive device, comprising a mounting bracket and the power assembly according to claim 9, wherein the power assembly is mounted on the mounting bracket.