Motor and vehicle

Abstract

The invention relates to the technical field of motors, and provides a motor and a vehicle, and the motor comprises a housing, a plurality of plugging grooves are formed in the circumferential direction of the housing at intervals, and each plugging groove is provided with a first opening in the direction facing a stator core; the stator core is arranged in the shell and is in transition fit with the shell; and a plurality of elastic members, each of which is inserted into the corresponding insertion groove, can deform in the corresponding insertion groove, and abuts against and fits the outer peripheral wall of the stator core through the corresponding first opening. Through the technical scheme of the invention, a vibration reduction effect can be achieved on the motor, so that the noise of the motor is reduced.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular, to a motor and a vehicle. Background Art

[0002] As new energy vehicles continue to improve their requirements for comfort and power, new challenges have been raised for motor noise. The drive motor of a new energy electric vehicle will vibrate when starting, and the vibration process will generate noise. The electromagnetic noise and mechanical noise of the electric vehicle drive motor are relatively large compared to the roar of a fuel engine.

[0003] Currently, there are few passive noise reduction structures for new energy motors through motor structures. Summary of the invention

[0004] The technical problem to be solved by the present application is to provide a motor and a vehicle, which can achieve a vibration reduction effect on the motor, thereby reducing the noise of the motor.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a motor, comprising: a shell, a plurality of plug-in slots are arranged at circumferential intervals on the shell, and the plug-in slots are provided with a first opening facing the stator core; a stator core is arranged in the shell and transitionally matched with the shell; a plurality of elastic members, each of which is inserted into the plug-in slot, the elastic member can be deformed in the plug-in slot, and abut and fit with the outer peripheral wall of the stator core through the corresponding first opening.

[0007] As an implementation manner, the elastic member includes an elastic body and abutment bodies located on both sides of the elastic body in the axial direction, and the thickness of the abutment bodies is greater than the thickness of the elastic body.

[0008] As an embodiment, the shell includes a plurality of groups of abutment portions, and two abutment portions in one group are arranged at intervals to form the first opening.

[0009] As an implementation mode, the elastic body is an arc-shaped sheet structure, and the abutment body is a cylindrical structure;

[0010] Both sides of the plug-in slot are spaces adapted to the abutment body.

[0011] As an implementation manner, a plurality of notches are arranged in the circumferential direction of the stator core, the number of the notches corresponds to the number of the plug-in slots, and the elastic member can fit into the notches.

[0012] As an embodiment, the motor further includes an end cover, which is detachably connected to the housing and is provided with at least one oil inlet hole; the motor is further provided with a first oil injection ring, which is located at one end of the stator core and cooperates with the stator core and the end cover to form a first oil inlet chamber, which is connected to the oil inlet hole, and the first oil injection ring is provided with at least one first oil injection hole opened toward the end of the winding.

[0013] As an embodiment, the first oil injection ring is provided with a first sealing groove and a second sealing groove for accommodating a sealing ring, the first sealing groove is opened in the axial direction and abuts against the stator core, and the second sealing groove is opened in the radial direction and abuts against the end cover.

[0014] As an implementation mode, the plug-in slot is communicated with the oil inlet hole; and two spaced-apart protrusions are provided at one end of the plug-in slot away from the end cover, and the two protrusions are used to abut against the elastic member.

[0015] As an embodiment, the bottom of the shell is also provided with a second annular boss protruding radially, and the second annular boss is provided with a second opening at a position corresponding to the protrusion, and the second opening is communicated with the first opening; the motor also includes a second oil injection ring, the outer periphery of the second oil injection ring is fitted with the second annular boss, and the space between the second oil injection ring and the protrusion forms a second oil inlet chamber, and the second oil injection ring is provided with a plurality of second oil injection holes, and each of the second oil injection holes is communicated with the corresponding second oil inlet chamber.

[0016] As an implementation manner, a third annular boss is further provided at the bottom of the housing, the third annular boss is connected to the second annular boss, and the third annular boss is used to abut against the second oil injection ring.

[0017] As an embodiment, the oil inlet hole includes a main oil inlet hole and a secondary oil inlet hole, the main oil inlet hole extends along the axial direction of the end cover, the secondary oil inlet hole is set at an angle to the main oil inlet hole, the main oil inlet hole is connected to the plug-in slot, and the secondary oil inlet hole is connected to the first oil inlet chamber.

[0018] As an embodiment, the end cover includes a flange connected to the shell, and the main oil inlet hole passes through the flange.

[0019] In a second aspect, the present application provides a vehicle, comprising a motor provided in the first aspect.

[0020] The technical solution of this application has the following effects:

[0021] A plurality of plug-in slots are arranged at intervals in the circumferential direction of the shell, and a first opening is opened on the side of the plug-in slot facing the stator core, and a plurality of elastic members are inserted into the plug-in slot. When the stator core is inserted into the shell, the stator core and the shell are transitionally matched, and the plurality of elastic members can abut against the stator core through the first opening. In this way, the elastic member can absorb the electromagnetic vibration generated by the stator core and generate elastic deformation in the plug-in slot, thereby reducing the vibration of the motor and further reducing the noise of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a motor provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a partial explosion structure of a motor provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the exploded structure of a motor provided in an embodiment of the present application;

[0026] Figure 4 Schematic diagram of the exploded structure of the motor from different perspectives provided in the embodiment of the present application;

[0027] Figure 5 Another exploded structural schematic diagram of a motor provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of a motor from one perspective provided in an embodiment of the present application;

[0029] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure along the AA direction;

[0030] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure along the middle BB direction;

[0031] Fig. 9 A schematic diagram of the changes of the elastic member provided in the embodiment of the present application before being inserted into the plug-in slot and after being inserted into the plug-in slot.

[0032] Icons: 1-housing; 11-plug-in slot; 12-first opening; 13-second opening; 14-bump; 15-abutment; 16-second annular boss; 17-third annular boss; 2-stator core; 21-notch; 3-elastic member; 31-elastic body; 32-abutment; 4-end cover; 41-oil inlet hole; 411-main oil inlet hole; 412-secondary oil inlet hole; 42-first annular boss; 43-flange; 5-first injection ring; 51-first injection hole; 52-first sealing groove; 53-second sealing groove; 6-first oil inlet chamber; 7-second injection ring; 71-second injection hole; 8-second oil inlet chamber. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] like Figure 1 , 2 As shown in Figure 4, in the first aspect, an embodiment of the present application provides a motor, which includes a shell 1, one end of the shell 1 has an opening for connecting with the end cover 4, the shell 1 includes a side wall and a bottom wall, a plurality of plug-in slots 11 are arranged at intervals along the circumference of the side wall, the plug-in slots 11 extend along the axial direction of the side wall, and each plug-in slot 11 is provided with a first opening 12 on the side facing the stator core 2, the shell 1 is also provided with a stator core 2, the stator core 2 and the shell 1 are transitionally matched, each plug-in slot 11 is provided with an elastic member 3, each elastic member 3 can abut and fit with the stator core 2 through the first opening 12, thereby supporting the stator core 2, compared with the prior art in which the outer periphery of the stator core 2 is tightly fitted with the shell 1, the outer surface of the stator core 2 in the embodiment of the present application is supported by a plurality of elastic members 3, the elastic member 3 can absorb the electromagnetic vibration generated by the stator core 2, thereby generating elastic deformation in the plug-in slot 11, so as to reduce the vibration of the motor and further reduce the noise of the motor.

[0036] Optionally, transition fit means that there may be a gap or interference between the stator core 2 and the housing 1 , but the gap and interference obtained are generally relatively small.

[0037] Optionally, a plurality of insertion slots 11 are evenly arranged along the circumference of the side wall, so that the elastic member 3 can evenly provide supporting force to the stator core 2 in multiple directions.

[0038] like Fig. 9 As shown, optionally, the length of the elastic member 3 before being inserted into the plug-in slot 11 is L1, and the length after being inserted into the plug-in slot 11 is L2. The curvature of the elastic member 3 before being inserted into the plug-in slot 11 is greater than the curvature of the elastic member 3 inserted into the plug-in slot 11, so that the elastic member 3 is in an elastically deformed state when inserted into the plug-in slot 11, and when in contact with the stator core 2, it can play a buffering and vibration reduction effect.

[0039] Optionally, the elastic member 3 may generate a small elastic deformation in the plug-in slot 11 to ensure the overall stability of the motor.

[0040] Optionally, the elastic member 3 may be made of carbon spring steel material and may be deformed when assembled in the plug-in slot 11 .

[0041] like Figure 3 As shown, as an embodiment, the elastic member 3 includes an elastic body 31 and abutment bodies 32 located on both sides of the elastic body 31 in the axial direction, the thickness of the abutment bodies 32 is greater than the thickness of the elastic body 31, and since the abutment bodies 32 abut against the plug-in slot 11, the thickness of the abutment bodies 32 is greater than the thickness of the elastic body 31, which can increase the abutment area between the elastic member 3 and the plug-in slot 11, thereby improving the stability of the elastic member 3 in the plug-in slot 11; in addition, it also prevents the elastic member 3 from breaking or plastically deforming the abutment portion 15 between the elastic member 3 and the plug-in slot 11 after being elastically deformed.

[0042] like Figure 3 and 4 As shown, as an embodiment, the shell 1 includes multiple groups of abutment portions 15, and two abutment portions 15 in one group are arranged at intervals to form a first opening 12, so that the two sides of the first opening 12 are abutment portions 15, and the two abutment portions 15 can limit the elastic member 3 to prevent the elastic member 3 from popping out of the plug-in slot 11.

[0043] Optionally, the circumferential length of the first opening 12 is smaller than the circumferential bottom wall length of the insertion slot 11 on the opposite side of the first opening 12, so that a portion of the elastic member 3 can contact the stator core 2 through the first opening 12, and the abutment portions 15 on both sides of the first opening 12 can limit the elastic member 3.

[0044] As an implementation mode, the elastic body 31 is an arc-shaped sheet structure, so that the contact area with the stator core 2 can be increased, and the supporting force for the stator core 2 can be increased. The abutment body 32 is a cylindrical structure, and both sides of the plug-in slot 11 are spaces adapted to the abutment body 32. On the one hand, it can facilitate the assembly of the elastic member 3 into the plug-in slot 11. On the other hand, it also increases the contact area between the abutment body 32 and the plug-in slot 11, increases the abutment force, and improves the stability of the elastic member 3 in the plug-in slot 11.

[0045] like Figure 3 As shown, as an embodiment, a plurality of notches 21 are provided in the circumferential direction of the stator core 2, and the number of the notches 21 corresponds to the number of the plug-in slots 11. The elastic member 3 can be fitted into the notches 21, thereby increasing the contact area between the elastic member 3 and the stator core 2 and improving the stability. At the same time, the elastic member 3 can also absorb more electromagnetic vibrations, improve the vibration reduction effect and reduce noise.

[0046] Optionally, the notch 21 is also formed in an arc-shaped structure, so that the stator core 2 can fit more elastic bodies 31 .

[0047] like Figure 1 , 2 , 6 and 7, as an embodiment, the motor also includes an end cover 4, which is detachably connected to the shell 1, and at least one oil inlet hole 41 is provided on the end cover 4; the motor is also provided with a first oil injection ring 5, which is located at one end of the stator core 2, and cooperates with the stator core 2 and the end cover 4 to form a first oil inlet chamber 6, and the first oil inlet chamber 6 is connected with the oil inlet hole 41, and at least one first oil injection hole 51 opened toward the end of the winding is provided on the first oil injection ring 5, and the first oil inlet chamber 6 is formed by the first oil injection ring 5, the stator core 2 and the end cover 4. In this way, when the oil inlet hole 41 injects oil into the first oil inlet chamber 6, a negative pressure is formed, and the cooling oil of the first oil inlet chamber 6 can be sprayed toward the winding located at the end of the stator core 2 through the first oil injection hole 51, so as to fully cool the winding at the end, thereby improving the cooling efficiency of the end winding.

[0048] Optionally, the end cover 4 is provided with a plurality of oil inlet holes 41, and the plurality of oil inlet holes 41 can be connected to a plurality of pipelines to achieve simultaneous oil inletting into the plurality of oil inlet holes 41, or oil can be inletted through only a few of the oil inlet holes 41, and the other oil inlet holes 41 are blocked by sealing parts. Of course, another oil outlet hole can also be provided on the end cover 4.

[0049] Optionally, the first oil injection ring 5 may be a plastic part, and the first oil injection hole 51 may be a tapered hole, thereby increasing the pressure of the oil injection and improving the cooling effect on the end of the winding.

[0050] Optionally, the first oil injection ring 5 is located outside the end winding of the stator core 2. The stator core 2 is also provided with a plurality of cooling oil passages opened along the axial direction, so as to cool the stator core 2. The cooling oil passages may be connected to the first oil inlet chamber 6, that is, located on the outside of the first oil injection ring 5, or may not be connected to the first oil inlet chamber 6 and be located on the inside of the first oil injection ring 5.

[0051] Optionally, there may be a plurality of first oil injection holes 51 , and the plurality of first oil injection holes 51 may be evenly arranged along the circumferential direction to increase the injection area.

[0052] Optionally, the bottom wall of the housing 1 is further provided with an oil outlet hole; of course, the end cover 4 may also be provided with an oil outlet hole.

[0053] like Figure 5 and 7 As shown, as an embodiment, the first oil injection ring 5 is provided with a first sealing groove 52 and a second sealing groove 53 for accommodating a sealing ring. The first sealing groove 52 is opened in the axial direction and abuts against the stator core 2, and the second sealing groove 53 is opened in the radial direction and abuts against the end cover 4, thereby improving the sealing performance of the first oil inlet chamber 6, ensuring the internal pressure of the first oil inlet chamber 6, and making the cooling oil passing through the first oil injection hole 51 in a jet shape, thereby improving the cooling effect on the winding.

[0054] like Figure 5 As shown, optionally, the end cover 4 also includes a first annular boss 42 for abutting against the first oil injection ring 5. By providing the first annular boss 42, the axial length of the first oil injection ring 5 can be reduced, and the stress of the first oil injection ring 5 can be concentrated, so as to improve the sealing performance of the first oil injection ring 5. In addition, the first annular boss 42 is formed, and the second sealing groove 53 is also oriented in the radial direction, so that one end of the second sealing groove 53 has a certain thickness, which is convenient for abutting against the first annular boss 42, and also convenient for the first oil injection ring 5 to cooperate and seal with the end cover 4.

[0055] like Figure 4 and 7 As shown, as an embodiment, the plug-in slot 11 is connected with the oil inlet hole 41; two spaced protrusions 14 are provided at one end of the plug-in slot 11 away from the end cover 4, and the two protrusions 14 are used to abut against the elastic member 3. By providing two protrusions 14, on the one hand, it can abut against the elastic member 3, and play a supporting role for the elastic member 3 in the plug-in slot 11. In addition, the two protrusions 14 are arranged at intervals, and the oil inlet hole 41 is connected with the plug-in slot 11, so that the cooling oil can flow into the plug-in slot 11 to cool the outer surface of the stator core 2. At the same time, the cooling oil can also flow into the bottom of the housing 1 through the interval between the two protrusions 14 to cool the winding at the other end of the stator core 2, thereby increasing the cooling area of ​​the winding and improving the cooling effect.

[0056] Optionally, the number of the oil inlet holes 41 is consistent with the number of the plug-in slots 11 , and each oil inlet hole 41 is connected to a plurality of corresponding plug-in slots 11 .

[0057] Optionally, the oil inlet hole 41 is arranged as close as possible to the edge of the end cover 4 , so that when the end cover 4 is connected to the housing 1 , the oil inlet hole 41 can be connected to the plug slot 11 to avoid the elastic member 3 blocking the oil inlet hole 41 .

[0058] Optionally, the main oil inlet hole 411 is communicated with the plug-in slot 11 .

[0059] like Figure 4 and 8 As shown, as an embodiment, the bottom of the housing 1 is also provided with a second annular boss 16 protruding radially, and the second annular boss 16 is provided with a second opening 13 at a position corresponding to the protrusion 14, and the second opening 13 is communicated with the first opening 12; the motor also includes a second oil injection ring 7, the outer periphery of the second oil injection ring 7 is fitted with the second annular boss 16, and the space between the second oil injection ring 7 and the protrusion 14 forms a second oil inlet chamber 8, and the second oil injection ring 7 is provided with a plurality of second oil injection holes 71, and each second oil injection hole 71 is communicated with the corresponding second oil inlet chamber 8. By providing the second annular boss 16, and the second oil injection ring 7 being fitted with the second annular boss 16, a certain distance is provided between the second oil injection ring 7 and the bump 14 by utilizing the protruding portion of the second annular boss 16, so as to form a second oil inlet chamber 8, and the second annular boss 16 is provided with a second opening 13 corresponding to the position of the bump 14, so that the cooling oil can pass through the gap between the two bumps 14, and then enter the second oil inlet chamber 8 through the second opening 13, and the second oil inlet chamber 8 forms a negative pressure, and the end winding is spray-cooled through the second oil injection hole 71, so as to achieve sufficient cooling of the end winding, increase the cooling area, and improve the cooling effect.

[0060] Optionally, the second oil injection ring 7 is provided with a third sealing groove and a fourth sealing groove, both of which are used to accommodate sealing rings, the third sealing groove is opened in the axial direction of the second oil injection ring 7, and the fourth sealing groove is opened in the radial direction, the third sealing groove is used to abut against one end of the stator core 2, and the fourth sealing groove is used to fit with the second annular boss 16, thereby forming a sealed connection with the second oil inlet chamber 8.

[0061] Optionally, the second oil injection ring 7 may be a plastic part, and the second oil injection hole 71 may be a tapered hole, thereby increasing the pressure of the oil injection and improving the cooling effect on the end of the winding.

[0062] Optionally, the second oil injection ring 7 is located outside the end winding of the stator core 2, and the cooling oil channel can be connected to the second oil inlet chamber 8, that is, located on the outside of the second oil injection ring 7, or it can be not connected to the second oil inlet chamber 8 and located on the inside of the second oil injection ring 7.

[0063] like Figure 4 As shown, as an embodiment, a third annular boss 17 is further provided at the bottom of the housing 1, and the third annular boss 17 is connected to the second annular boss 16. The third annular boss 17 is used to abut against the axial direction of the second oil injection ring 7. On the one hand, the axial distance of the second oil injection ring 7 can be shortened, thereby reducing the production cost of the second oil injection ring 7; on the other hand, the axial length of the second oil injection ring 7 is reduced, which can concentrate the stress of the second oil injection ring 7 and facilitate improving the sealing performance of the second oil injection ring 7.

[0064] like Figure 5 and 7 As shown, as an embodiment, the oil inlet hole 41 includes a main oil inlet hole 411 and an auxiliary oil inlet hole 412. The main oil inlet hole 411 extends along the axial direction of the end cover 4, and the auxiliary oil inlet hole 412 is set at an angle to the main oil inlet hole 411. The main oil inlet hole 411 is connected to the plug-in slot 11, and the auxiliary oil inlet hole 412 is connected to the first oil inlet chamber 6. By setting the main oil inlet hole 411 and the auxiliary oil inlet hole 412, the oil circuit can be divided into two circuits, which enter the first oil inlet chamber 6 and the plug-in slot 11 respectively, and at the same time, the stator core 2 and the windings at the end are cooled to improve the efficiency of the motor.

[0065] Optionally, the axis of the secondary oil inlet hole 412 and the axis of the main oil inlet hole 411 are perpendicular to each other.

[0066] like Figure 2 As shown, as an embodiment, the end cover 4 includes a flange 43 connected to the shell 1, and the main oil inlet hole 411 passes through the flange 43. Since the flange 43 is connected to the shell 1, the main oil inlet hole 411 can be directly connected to the plug-in slot 11 with the help of the flange 43, thereby avoiding the waste of cooling oil. At the same time, the main oil inlet hole 411 is as close to the edge of the end cover 4 as possible, which can avoid the elastic member 3 from blocking the main oil inlet hole 411.

[0067] In a second aspect, an embodiment of the present application further provides a vehicle, comprising a motor provided in the first aspect, the vehicle being capable of reducing noise while also improving the cooling efficiency of the end windings.

[0068] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0069] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A motor, characterized in that: include: A housing, wherein a plurality of insertion slots are arranged at intervals in the circumferential direction of the housing, and the insertion slots are provided with a first opening toward the stator core; A stator core is disposed in the housing and is transitionally matched with the housing; A plurality of elastic members, each of which is inserted into the insertion slot, can be deformed in the insertion slot, and abut against and fit against the outer peripheral wall of the stator core through the corresponding first opening.

2. The motor according to claim 1, characterized in that The elastic member comprises an elastic body and abutment bodies located at two sides of the elastic body in an axial direction, and the thickness of the abutment bodies is greater than the thickness of the elastic body.

3. The motor according to claim 2, characterized in that The housing includes a plurality of groups of abutment portions, and two of the abutment portions in one group are arranged at intervals to form the first opening.

4. The motor according to claim 3, characterized in that The elastic body is an arc-shaped sheet structure, and the abutment body is a cylindrical structure; Both sides of the plug-in slot are spaces adapted to the abutment body.

5. The motor according to any one of claims 1 to 4, characterized in that: A plurality of notches are arranged in the circumferential direction of the stator core, the number of the notches corresponds to the number of the insertion slots, and the elastic member can be fitted into the notches.

6. The motor according to any one of claims 1 to 4, characterized in that: The motor further comprises an end cover, the end cover is detachably connected to the housing, and the end cover is provided with at least one oil inlet hole; The motor is also provided with a first oil injection ring, which is located at one end of the stator core and cooperates with the stator core and the end cover to form a first oil inlet chamber, the first oil inlet chamber is connected to the oil inlet hole, and the first oil injection ring is provided with at least one first oil injection hole opened toward the end of the winding.

7. The motor according to claim 6, characterized in that The first oil injection ring is provided with a first sealing groove and a second sealing groove for accommodating a sealing ring, the first sealing groove is opened in the axial direction and abuts against the stator core, and the second sealing groove is opened in the radial direction and abuts against the end cover.

8. The motor according to claim 6, characterized in that The plug-in slot is connected to the oil inlet hole; One end of the inserting slot away from the end cover is provided with two spaced protrusions, and the two protrusions are used to abut against the elastic member.

9. The motor according to claim 8, characterized in that The bottom of the housing is also provided with a second annular boss protruding in the radial direction, and the second annular boss is provided with a second opening at a position corresponding to the convex block, and the second opening is connected to the first opening; The motor also includes a second oil injection ring, the outer periphery of which is fitted with the second annular boss, the space between the second oil injection ring and the boss forms a second oil inlet chamber, and the second oil injection ring is provided with a plurality of second oil injection holes, each of which is connected to the corresponding second oil inlet chamber.

10. The motor according to claim 9, characterized in that A third annular boss is also provided at the bottom of the housing, the third annular boss is connected to the second annular boss, and the third annular boss is used to abut against the second oil injection ring.

11. The motor according to claim 8, characterized in that The oil inlet hole includes a main oil inlet hole and a secondary oil inlet hole, the main oil inlet hole extends along the axial direction of the end cover, the secondary oil inlet hole is arranged at an angle with the main oil inlet hole, the main oil inlet hole is connected with the plug-in slot, and the secondary oil inlet hole is connected with the first oil inlet chamber.

12. The motor according to claim 11, characterized in that The end cover comprises a flange connected to the shell, and the main oil inlet hole passes through the flange.

13. A vehicle, characterized in that: The vehicle is equipped with the motor according to any one of claims 1 to 12.

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