Oil guide structure of oil-cooled motor, motor and vehicle

Abstract

The utility model provides an oil cooling motor oil guide structure, a motor and a vehicle, and relates to the technical field of vehicle parts, the oil cooling motor oil guide structure comprises an oil guide ring, the oil guide ring is used for being arranged at the axial end part of a stator iron core, the oil guide ring is used for forming an oil cavity with a motor shell, a section of arc-shaped wall body of the oil guide ring is provided with a plurality of oil spraying holes, and the oil spraying holes are communicated with the oil cavity. The multiple oil spraying holes are formed in the circumferential direction of the oil guide ring at intervals and communicate with the oil cavity. When the axis of the motor is horizontally arranged, namely the axis of the stator core is horizontally arranged, the section of arc-shaped wall body, provided with the oil spraying holes, of the oil guide ring can be located above the arc-shaped wall body not provided with the oil spraying holes, cooling oil sprayed out of the upper oil spraying holes flows to the lower winding under the action of gravity after cooling the upper winding, and therefore the cooling effect of the motor is improved. Therefore, the cooling of the lower winding is realized, excessive cooling oil can be effectively prevented from gathering at the lower part of the stator winding, the upper part and the lower part of the stator winding can be uniformly cooled, and the performance of the motor is better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and particularly relates to an oil-cooling motor oil guiding structure, a motor and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, people have higher and higher requirements for the performance of the electric drive system. As an important part of the electric drive system, the performance of the motor has an important impact on the electric drive system. A large amount of heat is generated during the operation of the motor. In order to prevent the motor from reducing its operating efficiency or even burning out due to overheating, the existing motors are generally provided with an oil injection cooling system to cool the motor. Specifically, an oil ring is provided at the axial end of the stator core, and oil injection holes are evenly distributed along the circumferential direction of the oil ring. The oil liquid is sprayed onto the stator winding through the oil injection holes to achieve the cooling of the stator winding. However, the inventor found that in actual application, the cooling of the stator winding is not uniform, resulting in the influence on the motor performance. Summary of the Utility Model

[0003] The utility model aims to solve the technical problem of uneven cooling of the stator winding.

[0004] In a first aspect, the utility model provides an oil-cooling motor oil guiding structure, which includes an oil guiding ring. The oil guiding ring is used to be arranged at the axial end of the stator core, and the oil guiding ring is used to form an oil cavity with the motor housing. A plurality of oil injection holes are provided on an arc-shaped wall of the oil guiding ring, and the plurality of oil injection holes are arranged at intervals along the circumferential direction of the oil guiding ring. The oil injection holes are communicated with the oil cavity.

[0005] Optionally, there are two oil guiding rings, and the two oil guiding rings are respectively used to be arranged at the axial two ends of the stator core, and the two oil guiding rings are respectively used to form corresponding oil cavities with the motor housing.

[0006] Optionally, at least one oil guiding ring includes an oil guiding ring body and an oil guiding plate. The oil guiding ring body is in a ring shape and is provided with the oil injection holes. The oil guiding ring body is used to form the oil cavity with the motor housing. The oil guiding plate is arranged at one end of the oil guiding ring body far away from the stator core. The oil guiding plate is connected to the oil guiding ring body and extends radially along the oil guiding ring body to the inner side of the oil guiding ring body.

[0007] Optionally, the oil guiding plate is an arc-shaped plate and extends along an arc-shaped wall of the oil guiding ring body where the oil injection holes are provided.

[0008] Optionally, reinforcing ribs are arranged on the surface of the oil guiding plate facing the stator core; and / or, the oil guiding plate is made of an insulating material.

[0009] Optionally, the oil guiding ring is provided with a positioning boss for fitting and installing with the motor housing;

[0010] And / or, an annular groove is provided on the outer peripheral wall of the oil guiding ring;

[0011] And / or, the oil cooling motor oil guiding structure further includes a sealing ring, and the oil guiding ring is used for sealing and assembling with the stator core or the motor housing through the corresponding sealing ring.

[0012] In a second aspect, the present invention provides a motor, including a stator core, a motor housing, and the above-mentioned oil cooling motor oil guiding structure. The stator core is arranged inside the motor housing, and the oil guiding ring of the oil cooling motor oil guiding structure is arranged at the axial end of the stator core.

[0013] Optionally, the stator core is provided with an oil guiding channel extending axially, and both ends of the oil guiding channel are communicated with the oil cavities corresponding to the two oil guiding rings respectively.

[0014] Optionally, the motor housing is provided with an installation hole at a position corresponding to the positioning boss of the oil cooling motor oil guiding structure, and the motor housing is fitted and installed with the oil cooling motor oil guiding structure through the positioning boss and the installation hole.

[0015] In a third aspect, the present invention provides a vehicle, including the above-mentioned motor. The axis of the motor is horizontally arranged, and an arc-shaped wall body of the oil guiding ring of the motor provided with an oil injection hole is located above an arc-shaped wall body without an oil injection hole.

[0016] The oil cooling motor oil guiding structure, the motor, and the vehicle of the present invention have at least the following advantages compared with the prior art:

[0017] The oil guiding ring is located at the axial end of the stator core. An oil cavity is formed between the circumferential outside of the oil guiding ring and the motor housing. The end of the stator winding is located inside the oil guiding ring. The cooling medium such as cooling oil in the oil cavity can be sprayed onto the end of the stator winding through the oil injection hole of the oil guiding ring to realize the cooling of the motor. At the same time, when the axis of the motor is horizontally arranged, that is, the axis of the stator core is horizontally arranged, an arc-shaped wall body of the oil guiding ring provided with an oil injection hole can be located above an arc-shaped wall body without an oil injection hole. The cooling oil sprayed from the upper oil injection hole flows to the lower winding under the action of gravity after cooling the upper winding, so as to realize the cooling of the lower winding. Compared with uniformly arranging oil injection holes in the entire circumference of the oil guiding ring, it can effectively avoid excessive cooling oil from gathering at the lower part of the stator winding, ensure that the upper and lower parts of the stator winding can be evenly cooled, the motor cooling is more uniform, the service life is longer, and the performance is more guaranteed. Description of the Drawings

[0018] Figure 1Cross-sectional view of the motor according to an embodiment of the present utility model;

[0019] Figure 2 Exploded structural schematic diagram of the motor according to an embodiment of the present utility model;

[0020] Figure 3 Structural schematic diagram of the oil guiding structure of the oil-cooled motor according to an embodiment of the present utility model;

[0021] Figure 4 Structural schematic diagram of the oil guiding structure of the oil-cooled motor according to an embodiment of the present utility model from another perspective.

[0022] Explanation of reference numerals:

[0023] 1. Oil guiding ring; 11. Oil guiding ring body; 12. Oil guiding plate; 121. Arc-shaped opening; 122. Reinforcing rib; 13. Oil injection hole; 14. Positioning boss; 15. Annular groove; 2. Oil cavity; 3. Sealing ring; 4. Stator core; 41. Oil guiding channel; 5. Motor housing; 6. Stator winding. Detailed implementation manners

[0024] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the specific embodiments of the present utility model in detail with reference to the accompanying drawings.

[0025] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "matching" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] In addition, it should be noted that in the description of the present utility model, it should be stated that the terms indicating directions such as "upper", "lower", "front", "rear" in each embodiment are only for simplifying the description of the positional relationship based on the drawings of the specification, and do not represent that the indicated elements and devices must operate according to the specific directions and limited operations and methods and structures in the specification. Such terms indicating directions do not constitute a limitation to the present utility model.

[0027] An XZ coordinate system is established herein. Among them, the X-axis can represent the front-back or left-right direction, the Z-axis represents the up-down direction, the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side. At the same time, it should be noted that the meanings represented by the foregoing X-axis and Z-axis are only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0028] In the related art, an oil ring is provided at the axial end of the stator core. The oil ring is evenly distributed with oil injection holes along its circumferential direction, and the oil liquid is sprayed onto the stator winding through the oil injection holes to achieve cooling of the stator winding. However, the inventor has recognized that since the motor is usually horizontally installed on the vehicle chassis, that is, the central axes of the stator core and the oil ring are horizontally arranged, the cooling oil sprayed from the oil injection holes of the oil ring flows to the lower space of the oil ring under the action of gravity, resulting in more cooling oil contacting the lower stator winding than the upper stator winding, and the stator winding is cooled unevenly, affecting the performance of the motor.

[0029] As Figure 1 - Figure 2 shown, an oil guiding structure of an oil-cooled motor according to an embodiment of the present invention includes an oil guiding ring 1. The oil guiding ring 1 is used to be arranged at the axial end of the stator core 4. The oil guiding ring 1 is used to form an oil chamber 2 with the motor housing 5. A plurality of oil injection holes 13 are provided on an arc-shaped wall of the oil guiding ring 1. The plurality of oil injection holes 13 are arranged at intervals along the circumferential direction of the oil guiding ring 1. The oil injection holes 13 communicate with the oil chamber 2.

[0030] Specifically, the oil guiding ring 1 is located at the axial end of the stator core 4. The oil guiding ring 1 is annular, and the axis of the oil guiding ring 1 coincides with the axis of the stator core 4, both are arranged substantially horizontally, or extend along the direction shown by the X axis. The motor housing 5 is usually cylindrical, including a side wall part and an end face part. An annular oil chamber 2 is formed between the outer peripheral wall of the oil guiding ring 1 and the side wall part of the motor housing 5. The two axial ends of the oil guiding ring 1 can be respectively in contact with the axial end face of the stator core 4 and the end face part of the motor housing 5, so that the oil chamber 2 is in a closed structure. The oil chamber 2 can store cooling media such as cooling oil. The oil chamber 2 can be directly communicated with the oil inlet on the motor housing 5, or can be communicated with the oil inlet through the relevant oil circuits inside the motor. The oil guiding ring 1 surrounds the end of the stator winding 6. A plurality of oil injection holes 13 are provided at intervals on an arc-shaped wall of the oil guiding ring 1, that is, the oil guiding ring 1 does not have oil injection holes 13 distributed along its entire circumferential direction, but only has oil injection holes 13 distributed on an arc-shaped wall extending along the circumferential direction. One end of the oil injection hole 13 communicates with the oil chamber 2, and the other end points to the end of the stator winding 6.

[0031] In this embodiment, the cooling medium in the oil chamber 2, such as cooling oil, can be sprayed through the oil injection holes 13 of the oil guiding ring 1 towards the ends of the stator winding 6 to achieve cooling and temperature reduction of the motor. Meanwhile, when the axis of the motor is horizontally arranged, that is, the axis of the stator core 4 is horizontally arranged, a section of the arc wall body of the oil guiding ring 1 provided with the oil injection holes 13 can be located above the arc wall body without the oil injection holes 13. The cooling oil sprayed from the upper oil injection holes 13 flows to the lower winding under the action of gravity after cooling the upper winding, so as to achieve cooling of the lower winding. Compared with uniformly arranging the oil injection holes 13 in the entire circumference of the oil guiding ring 1, it can effectively prevent excessive cooling oil from accumulating at the lower part of the stator winding 6, ensure that the upper and lower parts of the stator winding 6 can be evenly cooled, the motor cooling is more uniform, the service life is longer, and the performance is more guaranteed.

[0032] As Figure 1 - Figure 2 shown, optionally, two oil guiding rings 1 are provided, and the two oil guiding rings 1 are respectively used to be arranged at the axial two ends of the stator core 4, and the two oil guiding rings 1 are respectively used to form the corresponding oil chambers 2 with the motor housing 5.

[0033] Specifically, oil guiding rings 1 are respectively arranged at the axial two ends of the stator core 4, and the two oil guiding rings 1 respectively form oil chambers 2 with the two ends of the motor housing 5. The cooling oil in each oil chamber 2 can be sprayed through the oil injection holes 13 on the corresponding oil guiding ring 1 towards the ends of the stator winding 6 to achieve cooling and temperature reduction of the two ends of the stator winding 6. Here, the two oil chambers 2 can be communicated with each other, and one of the oil chambers 2 is communicated with an oil inlet (not shown in the figure) on the motor housing 5; alternatively, two oil inlets can be arranged on the motor housing 5 to supply oil to the two oil chambers 2 respectively.

[0034] Both of the two oil guiding rings 1 are provided with oil injection holes 13 in the upper region and no oil injection holes 13 in the lower region to ensure uniform cooling of the two ends of the stator winding 6.

[0035] As Figure 3 - Figure 4 shown, optionally, at least one of the oil guiding rings 1 includes an oil guiding ring body 11 and an oil guiding plate 12. The oil guiding ring body 11 is annular and provided with the oil injection holes 13. The oil guiding ring body 11 is used to form the oil chamber 2 with the motor housing 5. The oil guiding plate 12 is arranged at one end of the oil guiding ring body 11 away from the stator core 4. The oil guiding plate 12 is connected to the oil guiding ring body 11 and extends radially along the oil guiding ring body 11 to the inside of the oil guiding ring body 11.

[0036] Specifically, the oil guiding ring body 11 is annular, and an annular oil cavity 2 is formed between its outer peripheral wall and the motor housing 5. The oil guiding plate 12 can be an arc-shaped plate or an annular plate, and is coaxially arranged with the oil guiding ring body 11. The outer edge of the oil guiding plate 12 is connected to the inner wall of the oil guiding ring body 11. The oil guiding plate 12 extends from the outside to the inside along the radial direction of the oil guiding ring body 11. When the axis of the motor is horizontally arranged, the oil guiding plate 12 is an overall vertically arranged thin plate.

[0037] Specifically, if there is an oil inlet on the motor housing 5, and the oil inlet is communicated with the oil cavity 2 corresponding to one of the oil guiding rings 1, the oil cavities 2 corresponding to the two oil guiding rings 1 are communicated with each other through relevant oil circuits inside the motor. At this time, the oil guiding ring 1 corresponding to the oil cavity 2 communicated with the oil inlet can be set to include the oil guiding ring body 11 and the oil guiding plate 12, and the other oil guiding ring 1 can only include the oil guiding ring body 11 and does not have an oil guiding plate 12; if there are two oil inlets on the motor housing 5, and the two oil inlets are respectively communicated with the oil cavities 2 corresponding to the two oil guiding rings 1, at this time, both oil guiding rings 1 can be set to include the oil guiding ring body 11 and the oil guiding plate 12.

[0038] Specifically, since the cooling oil is pumped into the oil inlet of the motor housing 5 after being pressurized by the electronic oil pump, the oil pressure at the oil inlet is relatively high, and the pressure at the oil injection hole 13 of the oil cavity 2 communicated with the oil inlet is also relatively high, and it often sprays. By setting the oil guiding ring 1 corresponding to the oil cavity 2 communicated with the oil inlet to include the oil guiding ring body 11 and the oil guiding plate 12, and the oil guiding plate 12 is located at one end of the oil guiding ring body 11 away from the stator core 4, the oil guiding plate 12 can block the oil to prevent the oil from overflowing in the direction away from the stator core 4. At the same time, the cooling oil can flow downward under the guiding action of the oil guiding plate 12 to achieve oil drainage.

[0039] As Figure 3 shown, optionally, the oil guiding plate 12 is an arc-shaped plate and extends along an arc-shaped wall body of the oil guiding ring body 11 where the oil injection hole 13 is provided.

[0040] Specifically, the oil guiding plate 12 is an arc-shaped plate, which can save materials on the premise of realizing oil guiding; in addition, the oil guiding plate 12 extends along an arc-shaped wall body of the oil guiding ring body 11 where the oil injection hole 13 is provided, that is, a section of the oil guiding ring body 11 corresponding to the arc-shaped opening 121 of the oil guiding plate 12 is not provided with an oil injection hole 13. When the axis of the motor is horizontally arranged, the arc-shaped opening 121 is arranged downward. Furthermore, when there is more cooling oil, the oil can flow out from the arc-shaped opening 121 under the guiding action of the oil guiding plate 12, avoiding uneven cooling caused by the lower part of the stator winding 6 contacting too much oil.

[0041] As Figure 3As shown, optionally, the oil guiding plate 12 is provided with reinforcing ribs 122 on the side facing the stator core 4; and / or, the oil guiding plate 12 is made of an insulating material.

[0042] Specifically, the reinforcing ribs 122 on the side of the oil guiding plate 12 facing the stator core 4 can not only strengthen the strength of the oil guiding plate 12, but also regulate the flow rate of the oil, so that the oil ejected from the oil injection holes 13 can flow downward at a slower speed, avoiding the lower part of the stator winding from being cooled too quickly due to the rapid downward flow of the oil, which is beneficial to improving the cooling consistency of the upper and lower parts of the stator winding. In addition, a reinforcing structure can also be provided on the side of the oil guiding plate 12 facing away from the stator core 4 to improve the strength of the oil guiding plate 12.

[0043] The surface of the oil guiding plate 12 can be fitted with the motor housing 5. The oil guiding plate 12 is made of an insulating material, which can play an insulating role between the stator winding 6 and the end face part of the motor housing 5.

[0044] As Figure 3 - Figure 4 shown, optionally, the oil guiding ring 1 is provided with positioning bosses 14 for fitting and installing with the motor housing 5; and / or, an annular groove 15 is provided on the outer peripheral wall of the oil guiding ring 1; and / or, the oil cooling motor oil guiding structure further includes a sealing ring 3, and the oil guiding ring 1 is used for sealing and assembling with the stator core 4 or the motor housing 5 through the corresponding sealing ring 3.

[0045] Specifically, the positioning bosses 14 can be provided at one end of the oil guiding ring 1 away from the stator core 4 to facilitate the assembly with the end of the motor housing 5 and realize the anti-misalignment assembly design of the oil guiding ring 1 in the circumferential direction. For example, in the oil guiding ring 1 provided with the oil guiding plate 12, positioning bosses 14 can be respectively provided at the arc-shaped two ends of the oil guiding plate 12 for positioning and assembling with the end of the motor housing 5.

[0046] Annular grooves 15 can be respectively provided on the outer walls of the two oil guiding rings 1. The oil injection holes 13 are provided at the bottom of the annular grooves 15. An oil cavity 2 is formed by enclosing between the annular grooves 15 and the motor housing 5. By providing the annular grooves 15, the accommodation space of the oil cavity 2 is increased.

[0047] The sealing ring 3 can be an O-ring. Sealing rings 3 can be respectively provided at both ends of each oil guiding ring 1, so that the oil guiding ring 1 can be sealed and assembled with the stator core 4 and the motor housing 5 through the corresponding sealing rings 3 to avoid oil leakage.

[0048] As Figure 1 - Figure 2As shown in the figure, another embodiment of the present utility model provides a motor, which includes a stator core 4, a motor housing 5, and the above-mentioned oil-cooled motor oil guiding structure. The stator core 4 is arranged inside the motor housing 5, and the oil guiding ring 1 of the oil-cooled motor oil guiding structure is arranged at the axial end of the stator core 4. The advantages of this motor compared with the prior art are the same as those of the above-mentioned oil-cooled motor oil guiding structure, and will not be repeated here.

[0049] As Figure 1 - Figure 2 shown, optionally, the stator core 4 is provided with an oil guiding channel 41 extending axially, and both ends of the oil guiding channel 41 are respectively communicated with the oil cavities 2 corresponding to the two oil guiding rings 1.

[0050] Specifically, one or more oil guiding channels 41 are provided. The oil guiding channels 41 are arranged at intervals along the circumferential direction of the stator core 4. Both ends of the oil guiding channel 41 respectively penetrate through the two axial end faces of the stator core 4, and the two oil cavities 2 are communicated through the oil guiding channel 41, so that only one oil inlet and one oil outlet need to be arranged on the motor housing 5 to realize the cooling circulation inside the entire motor, and the cooling system is simpler.

[0051] Optionally, the motor housing 5 is provided with an installation hole (not shown in the figure) at a position corresponding to the positioning boss 14 of the oil-cooled motor oil guiding structure. The motor housing 5 is cooperatively installed with the oil-cooled motor oil guiding structure through the positioning boss 14 and the installation hole. By inserting the positioning boss 14 into the corresponding installation hole, the anti-misassembly between the oil-cooled motor oil guiding structure and the motor housing 5 can be realized, and the installation is simple and convenient.

[0052] Another embodiment of the present utility model further provides a vehicle, which includes the above-mentioned motor. The axis of the motor is horizontally arranged, and an arc-shaped wall body of the oil guiding ring 1 of the motor, which is provided with an oil injection hole 13, is located above the arc-shaped wall body without the oil injection hole 13.

[0053] In this embodiment, since the axis of the motor is horizontally arranged, that is, the axis of the stator core 4 is horizontally arranged, and an arc-shaped wall body of the oil guiding ring 1 of the motor, which is provided with the oil injection hole 13, is located above the arc-shaped wall body without the oil injection hole 13, the cooling oil sprayed out from the upper oil injection hole 13 flows to the lower winding under the action of gravity after cooling the upper winding of the motor, so as to realize the cooling of the lower winding. Compared with the uniform arrangement of oil injection holes 13 in the entire circumferential direction of the oil guiding ring 1, it can effectively avoid excessive cooling oil from accumulating at the lower part of the stator winding 6, ensure that the upper and lower parts of the stator winding 6 can be evenly cooled, the motor cooling is more uniform, the service life is longer, and the performance is more guaranteed.

[0054] The other advantages of this vehicle compared with the prior art are the same as those of the above-mentioned motor, and will not be repeated here.

[0055] Although the present utility model is disclosed as above, the protection scope of the present utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims

1. An oil-cooled motor oil guiding structure, characterized in that, It includes an oil guiding ring (1). The oil guiding ring (1) is used to be arranged at the axial end of the stator core (4). The oil guiding ring (1) is used to form an oil cavity (2) with the motor housing (5). A plurality of oil injection holes (13) are provided on an arc-shaped wall body of the oil guiding ring (1). The plurality of oil injection holes (13) are arranged at intervals along the circumferential direction of the oil guiding ring (1). The oil injection holes (13) communicate with the oil cavity (2).

2. The oil guiding structure of the oil-cooled motor according to claim 1, characterized in that, There are two oil guiding rings (1). The two oil guiding rings (1) are respectively used to be arranged at the two axial ends of the stator core (4), and the two oil guiding rings (1) are respectively used to form the corresponding oil cavity (2) with the motor housing (5).

3. The oil cooling motor oil guiding structure according to claim 2, characterized in that, At least one of the oil guiding rings (1) includes an oil guiding ring body (11) and an oil guiding plate (12). The oil guiding ring body (11) is in a ring shape and is provided with the oil injection holes (13). The oil guiding ring body (11) is used to form the oil cavity (2) with the motor housing (5). The oil guiding plate (12) is arranged at one end of the oil guiding ring body (11) far from the stator core (4). The oil guiding plate (12) is connected to the oil guiding ring body (11) and extends radially along the oil guiding ring body (11) to the inner side of the oil guiding ring body (11).

4. The oil guiding structure of the oil-cooled motor according to claim 3, characterized in that, The oil guiding plate (12) is an arc-shaped plate and extends along an arc-shaped wall body of the oil guiding ring body (11) where the oil injection holes (13) are provided.

5. The oil-cooling motor oil guiding structure according to claim 3, wherein, The side of the oil guiding plate (12) facing the stator core (4) is provided with reinforcing ribs (122); and / or, the oil guiding plate (12) is made of an insulating material.

6. The oil guiding structure of the oil-cooled motor according to claim 1, characterized in that, The oil guiding ring (1) is provided with a positioning boss (14) for fitting and installing with the motor housing (5); and / or, an annular groove (15) is arranged on the outer peripheral wall of the oil guiding ring (1); and / or, the oil cooling motor oil guiding structure further includes a sealing ring (3). The oil guiding ring (1) is used to be hermetically assembled with the stator core (4) or the motor housing (5) through the corresponding sealing ring (3).

7. A motor, characterized in that, It includes a stator core (4), a motor housing (5) and the oil cooling motor oil guiding structure according to any one of claims 1-6. The stator core (4) is arranged inside the motor housing (5). The oil guiding ring (1) of the oil cooling motor oil guiding structure is arranged at the axial end of the stator core (4).

8. The motor according to claim 7, characterized in that, The stator core (4) is provided with an oil guiding channel (41) extending axially. Both ends of the oil guiding channel (41) communicate with the corresponding oil cavities (2) of the two oil guiding rings (1).

9. The motor according to claim 7, characterized in that, The motor housing (5) is provided with an installation hole at a position corresponding to the positioning boss (14) of the oil cooling motor oil guiding structure. The motor housing (5) is fitted and installed with the oil cooling motor oil guiding structure through the positioning boss (14) and the installation hole.

10. A vehicle, characterized in that, It includes a motor according to any one of claims 7-9. The axis of the motor is horizontally arranged. An arc-shaped wall body of the oil guiding ring (1) of the motor where the oil injection holes (13) are provided is located above an arc-shaped wall body without the oil injection holes (13).

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