Motor and vehicle

Abstract

The utility model discloses a motor and a vehicle. The motor comprises a stator core, a sealing oil injection ring and a fixing piece. The stator core is provided with a stator groove, and the stator groove penetrates through the two opposite side end faces of the stator core in the axial direction of the stator core. The sealing oil injection ring is arranged on the end face of the stator core in the axial direction and matched with the end face of the stator core to form an oil storage cavity communicated with the stator groove. The fixing piece is inserted into the stator groove, a plurality of fixing cavities for accommodating the windings are formed in the fixing piece, the plurality of fixing cavities are spaced to form a cooling channel, and the cooling channel is communicated with the oil storage cavity, so that cooling liquid in the oil storage cavity flows to the other end of the stator iron core through the cooling channel. An oil storage cavity is formed by the sealing oil injection ring and the end face of the stator iron core, and the fixing piece is inserted into the stator groove and provides a fixing cavity and a cold oil channel so as to fix the winding. The cold oil channel is communicated with the oil storage cavity, so that the cooling liquid in the oil storage cavity enters the cooling channel, the contact area of the cooling liquid and the motor is increased, and the cooling efficiency of the motor is improved.

Description

Technical Field

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

[0002] In order to reduce global carbon emissions, new energy vehicles are being vigorously developed. The motors of new energy vehicles determine the performance of the vehicle to a certain extent.

[0003] When the motor is working, the winding inside the motor will generate a lot of heat. If the winding is not cooled in time or the cooling efficiency is low, it will have a great impact on the motor's operating stability, life and efficiency. Utility Model Content

[0004] The main purpose of this application is to provide a motor and a vehicle, aiming to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above-mentioned problems, the present application provides a motor comprising a stator core, a sealing oil injection ring, and a fixing member. The stator core has stator slots, which extend through the stator core's axial end faces on opposite sides. The sealing oil injection ring is disposed on one axial end face of the stator core and cooperates with the end face of the stator core to form an oil storage cavity connected to the stator slots. The fixing member is inserted into the stator slot and is formed with a plurality of fixed cavities for accommodating windings. The plurality of fixed cavities are separated to form a cooling channel. The cooling channel is connected to the oil storage cavity, so that the coolant in the oil storage cavity flows to the other end of the stator core through the cooling channel.

[0006] In some embodiments, two opposite side walls of the fixing member are correspondingly provided with inwardly protruding fixing portions, and a gap is provided between the two corresponding fixing portions to form a cooling channel.

[0007] In some embodiments, the fixing portion includes a contact arc surface, which is arranged at one end of the fixing portion away from the side wall of the fixing piece, and the center of the contact arc surface is located on a side of the contact arc surface close to the side wall connected to the fixing portion.

[0008] In some embodiments, the fixing cavity and the cooling channel are communicated and alternately arranged.

[0009] In some embodiments, the sealing oil injection ring includes an inner wall and an outer wall, and the inner wall and the outer wall are provided with a plurality of oil injection ports along the circumferential direction, and the oil injection ports communicate with the inside and outside of the oil storage cavity.

[0010] In some embodiments, the sealing oil injection ring also includes a connecting portion, which includes a first sealing ring and a second sealing ring. The first sealing ring is connected to one end of the inner wall close to the stator core, and the second sealing ring is connected to one end of the outer wall close to the stator core.

[0011] In some embodiments, the connecting portion further includes a first mounting groove and a second mounting groove, the first mounting groove being arranged on the inner wall close to one end of the stator core, the second mounting groove being arranged on the outer wall close to one end of the stator core, the first sealing ring being partially located in the first mounting groove, and the second sealing ring being partially located in the second mounting groove.

[0012] In some embodiments, there may be two sealing oil injection rings, which are located at both ends of the stator core in the axial direction.

[0013] In some embodiments, the sealing oil injection ring includes an oil inlet, which is arranged on the outer side wall of the sealing oil injection ring in the direction of gravity, and the oil inlet is connected to the oil storage cavity.

[0014] Compared with the prior art, the motor provided by the present application includes a stator core, a sealing oil spray ring and a fixing member. The stator core has stator slots, which pass through the opposite end faces of the stator core in the axial direction of the stator core; the sealing oil spray ring is arranged on the end face of the stator core in the axial direction and cooperates with the end face of the stator core to form an oil storage cavity connected to the stator slot; the fixing member is inserted into the stator slot, and the fixing member forms a plurality of fixed cavities for accommodating windings, and the plurality of fixed cavities are spaced to form a cooling channel. The cooling channel is connected to the oil storage cavity so that the coolant in the oil storage cavity flows to the other end of the stator core through the cooling channel. Through the above embodiment, the sealing oil spray ring forms an oil storage cavity with the end face of the stator core, and the fixing member is inserted into the stator slot and provides a fixed cavity and a cold oil channel to fix the winding. The cold oil channel is connected to the oil storage cavity, so that the coolant in the oil storage cavity enters the cooling channel, thereby improving the heat exchange between the coolant and the winding and improving the cooling efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 is a structural schematic diagram of an embodiment of a motor provided by the present application;

[0017] Figure 2 yes Figure 1 A first perspective view of an embodiment of a fixing member is shown;

[0018] Figure 3 yes Figure 2 a second perspective view of the fixing member shown;

[0019] Figure 4 yes Figure 1The structural diagram of the sealing oil injection ring shown;

[0020] Figure 5 yes Figure 1 An enlarged schematic diagram of the structure in the dotted circle is shown.

[0021] Figure numbers: motor 10; stator core 100; stator slot 110; sealing oil injection ring 200; oil storage chamber 210; inner wall 220; outer wall 230; connecting part 240; first sealing ring 250; second sealing ring 260; oil inlet 270; first mounting groove 241; second mounting groove 242; oil injection port 280; fixing part 300; fixing part 310; contact arc surface 311; fixing chamber 320; cooling channel 330; winding 340; axial direction X; gravity direction Y; circumferential direction O. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0024] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0025] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0027] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0028] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply 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 embodiments of the present application.

[0029] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0030] To reduce global carbon emissions, new energy vehicles are being vigorously developed. The motors in these vehicles, to a certain extent, determine their performance. During operation, the windings within the motor generate significant heat. Failure to promptly cool the windings or inefficiently cools the windings can significantly impact the motor's operational stability, lifespan, and efficiency. To address these technical issues, the present application provides a motor and vehicle.

[0031] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of an embodiment of the motor provided in this application. Figure 2 yes Figure 1 A first perspective view of an embodiment of a fixing member is shown.

[0032] The motor 10 includes a stator core 100, a sealing oil injection ring 200, and a fixing member 300. The stator core 100 has stator slots 110 that extend through the stator core 100 on opposite sides of the stator core 100 in the axial direction X. The sealing oil injection ring 200 is disposed on one end face of the stator core 100 in the axial direction X and cooperates with the end face of the stator core 100 to form an oil storage chamber 210 that communicates with the stator slots 110. The fixing member 300 is inserted into the stator slot 110 and is formed with a plurality of fixed cavities 320 that accommodate windings 340. The plurality of fixed cavities 320 are separated to form cooling channels 330. The cooling channels 330 are connected to the oil storage chamber 210, allowing coolant in the oil storage chamber 210 to flow through the cooling channels 330 to the other end of the stator core 100.

[0033] The stator core 100 is an important component of the motor 10 and is located inside the motor 10. For better understanding, the stator core 100 can be regarded as a hollow cylinder. The stator core 100 is formed by stacking multiple silicon steel sheets. The stator core 100 has two end faces facing each other in the axial direction X, and stator slots 110 are provided inside the stator core 100 in the axial direction X. The stator slots 110 can extend along the axial direction X of the stator core 100. The notches of the stator slots 110 in the axial direction X are located within the end faces, and the stator slots 110 pass through the two end faces of the stator core 100 in the axial direction X.

[0034] The sealing oil injection ring 200 is located within the motor 10. The sealing oil injection ring 200 can be considered a circular ring with a U-shaped groove in cross section. The sealing oil injection ring 200 extends along the circumferential direction O of the stator core 100 and is disposed at one end face of the stator core 100 in the axial direction X. One end of the groove of the sealing oil injection ring 200 is connected to one end face of the stator core 100, thereby forming an oil reservoir 210 with the end face. The oil reservoir 210 can contain coolant to cool the motor 10. The radial dimension of the U-shaped groove can be larger than the radial dimension of the stator slot 110, so that the stator slot 110 can be surrounded by the sealing oil injection ring 200, thereby connecting the stator slot 110 with the oil reservoir 210.

[0035] The fixing member 300 can extend along the axial direction X and be inserted into the stator slot 110 of the stator core 100. The fixing member 300 has a fixing cavity 320, which can be a unidirectional slot. The contour of the fixing cavity 320 can be the same as the inner contour of the stator slot 110 so that the fixing member 300 can be stably inserted into the stator slot 110. The fixing cavity 320 is used to accommodate the winding 340 inserted into the fixing cavity 320. The winding 340 can be a flat wire winding 340, which can be better inserted into the fixing cavity 320. In addition, the winding 340 is located in the fixing cavity 320 and extends to both ends of the fixing cavity 320. The extended portion is the winding end. The winding end is located in the oil reservoir 210 so that the winding end can be completely immersed in the coolant inside the oil reservoir 210. The fixing cavities 320 are spaced apart, and cooling channels 330 are provided at the intervals between the fixing cavities 320. The cooling channels 330 communicate with the oil reservoir 210, allowing coolant in the oil reservoir 210 to enter the cooling channels 330, increasing the contact area between the coolant and the motor 10 and thereby improving the cooling efficiency of the coolant. The dimensions of the fixing member 300 in the axial direction X can be the same as the dimensions of the stator slots 110 in the axial direction X, thereby allowing the winding ends to contact more coolant and improving the cooling capacity of the winding ends. The material of the fixing member 300 can be an insulating material, replacing the insulating paper inserted in the stator slots 110. If insulating paper is still used, it will still have poor insulation due to the need to reserve space for the insulating paper in the stator slots 110. However, using the fixing member 300 improves the poor insulation problem because the winding 340 is in good contact with the side walls of the fixing member 300, leaving almost no gap. In addition, the fixing cavity 320 of the fixing member 300 can better fix the winding 340 .

[0036] Through the above-described embodiment, the sealing oil injection ring 200 and the end surface of the stator core 100 form an oil reservoir 210. The fixing member 300 is inserted into the stator slot 110 and provides a fixing cavity 320 and a cooling oil channel to secure the winding 340. The cooling oil channel communicates with the oil reservoir 210, allowing coolant in the oil reservoir 210 to enter the cooling channel 330, increasing the contact area between the coolant and the motor 10 and improving the cooling efficiency of the motor 10.

[0037] See also Figure 3 , Figure 3 yes Figure 2 A second perspective view of the fixing member is shown.

[0038] In some embodiments, the fixing member 300 has two opposite side walls in the circumferential direction O, each of which is provided with an inwardly protruding fixing portion 310. The two corresponding fixing portions 310 are spaced apart to form a cooling channel 330. The circumferential direction O can be understood as the direction of rotation about the axial direction X. The fixing member 300 is inserted into the stator slot 110 of the stator core 100. The fixing members 300 are spaced apart in the stator core 100 along the circumferential direction O relative to the axial direction X. The fixing members 300 have two opposite side walls, each of which is provided with a fixing portion 310 that protrudes toward the opposite side wall. The two fixing portions 310 are spaced apart to form a cooling channel 330 between the two fixing portions 310, allowing coolant to enter the fixing member 300. Coolant is present between each fixing cavity 320, thereby improving the cooling effect of the coolant. The cross-section of the fixing portion 310 at one end away from the side wall of the fixing member 300 can be square to fix the winding 340.

[0039] In some embodiments, the fixing portion 310 includes a contact arc surface 311, which is disposed at one end of the fixing portion 310 away from the side wall of the fixing member 300. The center of the contact arc surface 311 is located on the side of the contact arc surface 311 that is close to the side wall connected to the fixing portion 310. The contact arc surface 311 is provided on the end of the fixing portion 310 away from the side wall of the fixing member 300. The contact arc surface 311 protrudes in an opposite direction relative to the fixing portion 310. This means that the center of the contact arc surface 311 is located on the side of the contact arc surface 311 that is close to the side wall of the fixing member 300 connected thereto. This increases the cross-section of the cooling channel 330 and increases the contact area between the motor 10 and the coolant, thereby improving the cooling efficiency of the motor 10.

[0040] In other embodiments, a groove is provided at one end of the fixing portion 310 away from the sidewall of the fixing member 300. The groove extends along the axial direction X within the fixing portion 310, thereby increasing the cross-sectional area of the cooling channel 330, allowing the cooling channel 330 to accommodate more coolant, thereby improving the cooling efficiency of the winding 340. The cross-sectional shape of the groove can be directional or semicircular. The specific shape of the groove can be adjusted according to actual conditions and is not limited in this application. In addition, the groove can also be provided on the contact arc surface 311, that is, a portion of the contact arc surface 311 can be recessed toward one end of the sidewall of the fixing member 300 to which it is connected, thereby further increasing the cooling capacity of the cooling channel 330.

[0041] In some embodiments, the fixing cavities 320 and cooling channels 330 are interconnected and alternately arranged. The fixing portions 310 on the same side wall of the fixing member 300 are spaced apart, and the fixing portions 310 on two opposing side walls of the fixing member 300 are correspondingly arranged, thereby forming the fixing cavities 320. The corresponding fixing portions 310 on the two side walls are spaced apart, and the side surfaces of the flat wire winding 340 in one fixing cavity 320 can be connected to the side walls of two adjacent fixing portions 310, so that the fixing portions 310 and the flat wire cooperate to form cooling channels 330. The cooling channels 330 are interconnected with the fixing cavities 320, allowing the coolant in the cooling channels 330 to directly contact the windings 340 in the fixing cavities 320, thereby improving the cooling efficiency of the windings 340. In addition, the cooling channels 330 and the fixed cavities 320 are arranged alternately, and multiple fixed cavities 320 are arranged at intervals in the fixing member 300, that is, one fixed cavity 320 can correspond to one cooling channel 330, so that one winding 340 can be adjacent to at least one cooling channel 330, thereby improving the cooling efficiency of the winding 340.

[0042] See also Figure 4 , Figure 4 yes Figure 1 The structural diagram of the sealing oil injection ring is shown.

[0043] In some embodiments, the sealing oil injection ring 200 includes an inner sidewall 220 and an outer sidewall 230. The inner sidewall 220 and the outer sidewall 230 are provided with a plurality of oil injection ports 280 along the circumferential direction O. The oil injection ports 280 communicate with the interior and exterior of the oil storage chamber 210. The sealing oil injection ring 200 comprises an inner sidewall 220, an outer sidewall 230, and a bottom wall. The inner sidewall 220 has a smaller radial dimension than the outer sidewall 230 and is located inward of the outer sidewall 230. The inner sidewall 220, the outer sidewall 230, and the bottom wall extend in the circumferential direction O and, together with the end surface of the stator core 100 in the axial direction X, form the oil storage chamber 210. The inner sidewall 220 and the outer sidewall 230 are provided with oil injection ports 280 at intervals along the circumferential direction O, and the oil injection ports 280 communicate with the interior and exterior of the oil storage chamber 210. After exchanging heat with the winding 340, the coolant in the oil reservoir 210 flows from the inside of the oil reservoir 210 to the outside of the oil reservoir 210 through the oil nozzle 280. Furthermore, after flowing out of the oil reservoir 210, the coolant can flow through the stator core 100 along the gravity direction Y to cool the stator core 100. Finally, the coolant flows along the gravity direction Y toward the housing of the motor 10.

[0044] See also Figure 5 , Figure 5 yes Figure 1 An enlarged schematic diagram of the structure in the dotted circle is shown.

[0045] In some embodiments, the sealing oil injection ring 200 further includes a connecting portion 240, which includes a first sealing ring 250 and a second sealing ring 260. The first sealing ring 250 is connected to the end of the inner sidewall 220 proximate to the stator core 100, and the second sealing ring 260 is connected to the end of the outer sidewall 230 proximate to the stator core 100. The connecting portion 240 is provided at the end of the sealing oil injection ring 200 connected to the end surface of the stator core 100. That is, the connecting portion 240 is provided at the end where the inner sidewall 220 and the outer sidewall 230 of the sealing oil injection ring 200 are connected to the end surface of the stator core 100. The second sealing ring 260 is provided at the end where the outer sidewall 230 is connected to the end surface of the stator core 100, and the first sealing ring 250 is provided at the end where the inner sidewall 220 is connected to the end surface of the stator core 100. Specifically, the inner and outer sidewalls 220 and 230 are connected to the end face of the stator core 100 via the first and second sealing rings 250 and 260. This reduces the possibility of coolant within the oil reservoir 210 leaking out from between the sealing oil injection ring 200 and the end face of the stator core 100, thereby improving the sealing performance of the sealing oil injection ring 200. This, in turn, increases the pressure of the coolant within the sealing oil injection ring 200, speeding up the flow of coolant through the cooling channel 330 and improving the cooling efficiency of the coolant. The sealing oil injection ring 200 can be secured to the housing of the motor 10 via bolts, tightly connecting the sealing oil injection ring 200 to the end face of the stator core 100.

[0046] In some embodiments, the connecting portion 240 further includes a first mounting groove 241 and a second mounting groove 242. The first mounting groove 241 is provided at an end of the inner sidewall 220 near the stator core 100, and the second mounting groove 242 is provided at an end of the outer sidewall 230 near the stator core 100. The first sealing ring 250 is partially located within the first mounting groove 241, and the second sealing ring 260 is partially located within the second mounting groove 242. The inner sidewall 220 and the outer sidewall 230 may be provided with a first mounting groove 241 and a second mounting groove 242. The radial dimensions of the openings of the first mounting groove 241 and the second mounting groove 242 may match the radial dimensions of the cross-sections of the first sealing ring 250 and the second sealing ring 260. The groove depths of the first mounting groove 241 and the second mounting groove 242 may be less than the radial dimensions of the cross-sections of the first sealing ring 250 and the second sealing ring 260, thereby ensuring that the first sealing ring 250 is partially located within the first mounting groove 241 and the second sealing ring 260 is partially located within the second mounting groove 242. When the sealing oil spray ring 200 is in close contact with the end face of the stator core 100, the first sealing ring 250 can be interference fit with the first mounting groove 241 and the end face of the stator core 100, and the second sealing ring 260 can be interference fit with the second mounting groove 242 and the end face of the stator core 100, thereby reducing the possibility of the coolant in the oil storage chamber 210 flowing out from between the sealing oil spray ring 200 and the end face of the stator core 100.

[0047] In some embodiments, there may be two sealing oil spray rings 200 , one located at each end of the stator core 100 in the axial direction X. The two end surfaces of the stator core 100 in the axial direction X may each be connected to a sealing oil spray ring 200 , so that both winding ends of the stator core 100 in the axial direction X are located within the oil reservoir 210 . Furthermore, the winding ends at both ends of the stator core 100 in the axial direction X are immersed in the coolant, thereby improving the cooling efficiency of the coolant.

[0048] In some embodiments, the sealing oil injection ring 200 includes an oil inlet 270, which is disposed on the outer wall 230 of the sealing oil injection ring 200 in the direction of gravity Y. The oil inlet 270 communicates with the oil storage chamber 210. The outer wall 230 of the sealing oil injection ring 200 is provided with the oil inlet 270, which communicates with the oil storage chamber 210, allowing coolant to flow from the oil inlet 270 into the oil storage chamber 210. The oil inlet 270 may be disposed on the outer wall of only one of the sealing oil injection rings 200, allowing coolant to flow from one end of the sealing oil injection ring 200 to the other, thereby improving the fluidity of the coolant and the efficiency of heat exchange between the coolant and the motor 10. The radial dimensions of the oil inlet 270 are both larger than the radial dimensions of the oil injection port 280 and the cooling channel 330. Because the radial dimension of the oil injection port 280 is relatively small, and the contact area between the coolant, the stator 300, and the winding 340 within the cooling channel 330 is relatively large, the coolant encounters relatively large resistance. As the coolant continuously enters the oil reservoir 210 from the oil inlet 270, the coolant can simultaneously flow into the cooling channel 330 while filling the oil reservoir 210 within the sealed oil injection ring 200 at one end of the stator core 100. Furthermore, the oil inlet 270 can be disposed on the outer wall 230 in the direction of gravity Y. As the coolant enters the oil reservoir 210 from the oil inlet 270, the coolant level gradually rises from bottom to top in the direction of gravity Y. Since the density of air is lower than that of the coolant, the coolant can expel air from the oil reservoir 210 and the cooling channel 330, thereby increasing the contact area between the coolant and the motor 10 and improving the cooling efficiency of the coolant.

[0049] In some embodiments, the motor 10 further includes a housing having an internal space for accommodating components such as the stator core 100, the sealing oil injection ring 200, and the fixing member 300. The housing is provided with an oil outlet in the direction of gravity Y, and the oil outlet connects the internal and external oil circuits of the motor 10. The oil outlet is used to allow the coolant gathered in the housing to flow to the external oil circuit. It is understandable that the external oil circuit may include components such as a reducer, a radiator, and an oil pump. The reducer has an oil reservoir for storing coolant, the radiator can dissipate heat for the coolant, and the oil pump is connected to the oil inlet 270 to deliver the coolant under pressure into the oil storage chamber 210, thereby realizing the circulation of the coolant to cool the motor 10.

[0050] In summary, the sealing oil injection ring 200 and the end surface of the stator core 100 form an oil reservoir 210. The fixing member 300 is inserted into the stator slot 110 and provides a fixing cavity 320 and a cooling oil channel to secure the winding 340. The cooling oil channel communicates with the oil reservoir 210, allowing coolant in the oil reservoir 210 to enter the cooling channel 330, increasing the contact area between the coolant and the motor 10 and improving the cooling efficiency of the motor 10.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A motor, characterized in that: The motor comprises: A stator core having stator slots, wherein the stator slots penetrate end surfaces of the stator core on opposite sides in the axial direction of the stator core; a sealing oil injection ring, provided on an end face of the stator core in the axial direction and cooperating with the end face of the stator core to form an oil storage cavity communicating with the stator slot; A fixing member is inserted into the stator slot, and the fixing member forms a plurality of fixing cavities for accommodating windings, and the plurality of fixing cavities are spaced apart to form a cooling channel, and the cooling channel is connected to the oil storage cavity, so that the coolant in the oil storage cavity flows to the other end of the stator core through the cooling channel.

2. The motor according to claim 1, characterized in that Two side walls of the fixing member that are opposite to each other in the circumferential direction are correspondingly provided with fixing portions that protrude inwards, and a gap is provided between the two corresponding fixing portions to form the cooling channel.

3. The motor according to claim 2, characterized in that The fixing portion includes a contact arc surface, which is arranged at one end of the fixing portion away from the side wall of the fixing member, and the center of the contact arc surface is located on a side of the contact arc surface close to the side wall connected to the fixing portion.

4. The motor according to claim 2, characterized in that The fixing cavity and the cooling channel are communicated with each other and are alternately arranged.

5. The motor according to claim 1, characterized in that The sealing oil injection ring includes an inner side wall and an outer side wall. The inner side wall and the outer side wall are provided with a plurality of oil injection ports along a circumferential direction. The oil injection ports communicate with the inside and outside of the oil storage cavity.

6. The motor according to claim 5, characterized in that The sealing oil injection ring also includes a connecting portion, which includes a first sealing ring and a second sealing ring. The first sealing ring is connected to the end of the inner wall close to the stator core, and the second sealing ring is connected to the end of the outer wall close to the stator core.

7. The motor according to claim 6, characterized in that The connecting portion also includes a first mounting groove and a second mounting groove, the first mounting groove is arranged on the inner wall close to one end of the stator core, and the second mounting groove is arranged on the outer wall close to one end of the stator core, the first sealing ring portion is located in the first mounting groove, and the second sealing ring portion is located in the second mounting groove.

8. The motor according to claim 1, characterized in that The number of the sealing oil spray rings may be two, and the two sealing oil spray rings are respectively located at two ends of the stator core in the axial direction.

9. The motor according to claim 8, characterized in that The sealing oil injection ring includes an oil inlet, which is arranged on the outer side wall of the sealing oil injection ring in the direction of gravity, and the oil inlet is connected to the oil storage cavity.

10. A vehicle, characterized in that: The vehicle comprises the motor according to any one of claims 1 to 9, and the motor is used to drive the vehicle to move.

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