CN218958730U

CN218958730U - Oil-cooled motor

Info

Publication number: CN218958730U
Application number: CN202223038072.4U
Authority: CN
Inventors: 李素文
Original assignee: Human Horizons Shanghai New Energy Drive Technology Co Ltd
Current assignee: Human Horizons Shanghai New Energy Drive Technology Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-05-02
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to the technical field of oil cooling motors, and particularly provides an oil cooling motor which comprises a core body, a first oil ring and a second oil ring, wherein the core body is provided with an oil inlet oil way, a plurality of first oil way groups and a plurality of second oil way groups; the first oil ring is provided with a first oil cavity along the circumferential direction of the first oil ring, and the first oil cavity is respectively communicated with one end of an oil inlet oil way and one end of a first oil way group; the first oil ring is provided with a first oil spraying cavity which is communicated with one end of the second oil way group; the first oil injection cavity is provided with a first oil injection hole; the second oil ring is provided with a second oil cavity which is respectively communicated with the other end of the oil inlet oil way and the other end of the second oil way group; the second oil ring is provided with a second oil spraying cavity which is communicated with the other end of the first oil way group; the second oil injection cavity is provided with a second oil injection hole. The utility model can uniformly distribute the cooling oil to the oil ring and the stator core, and ensure the structure of the stator core to be simplified and the cooling effect of the subsequent winding to be ensured.

Description

Oil-cooled motor

Technical Field

The utility model relates to the technical field of oil-cooled motors, in particular to an oil-cooled motor.

Background

The prior stator oil way mainly establishes a circumferential converging structure at the iron core to realize the oil way distribution of the iron core and the oil way conduction of the oil ring, but in order to meet the cooling and converging requirements of the oil way, all the oil ways of the stator iron core are required to be communicated, so that the cooling oil can flow through the whole iron core, the stator iron core is complex in structure, the flow resistance of the oil way is increased, and the cooling oil entering the oil ring flows through most positions of the iron core, so that the temperature of the cooling oil flowing into the oil ring is higher, and the cooling of subsequent windings is not facilitated.

Disclosure of Invention

The object of the present utility model is to provide an oil-cooled motor which can uniformly distribute cooling oil to an oil ring and a stator core, and which ensures a simplified structure of the stator core and also ensures a cooling effect of a subsequent winding.

In order to solve the above technical problems, the present utility model provides an oil-cooled motor, comprising:

a core having a first sidewall and a second sidewall on both sides thereof; the core body is provided with an oil inlet oil way, a plurality of first oil way groups and a plurality of second oil way groups; the oil inlet oil way, the first oil way group and the second oil way group extend from the first side wall to the second side wall respectively;

the first oil ring is connected with the first side wall, and is provided with a first oil cavity along the circumferential direction of the first oil ring, and the first oil cavity is respectively communicated with one end of the oil inlet oil way and one end of the first oil way group; the first oil ring is provided with first oil spraying cavities corresponding to the second oil way groups one by one, and the first oil spraying cavities are communicated with one end of the second oil way groups; the first oil injection cavity is provided with a first oil injection hole;

the second oil ring is connected with the second side wall, a second oil cavity is formed in the second oil ring along the circumferential direction of the second oil ring, and the second oil cavity is respectively communicated with the other end of the oil inlet oil way and the other end of the second oil way group; the second oil ring is provided with second oil spraying cavities corresponding to the first oil way groups one by one, and the second oil spraying cavities are communicated with the other end of the first oil way groups; and the second oil injection cavity is provided with a second oil injection hole.

According to the oil-cooled motor, the utility model has at least the following beneficial effects:

the stator core of the oil cooling motor is simple in structure, only the oil inlet oil way, the first oil way group and the second oil way group are needed to be arranged, the oil rings are arranged on the two side walls of the core body, the oil is conveyed to the corresponding first oil way group and the corresponding second oil way group through the first oil cavity and the second oil cavity of the oil rings, the oil is conveyed to the corresponding second oil spraying cavity and the corresponding first oil spraying cavity through the first oil way group and the second oil way group, the flow resistance of the oil way is small in the whole process and the cooling oil is distributed and cooled uniformly.

Preferably, the first oil path group and the second oil path group are staggered along the circumferential direction of the core body.

Preferably, the first oil spraying cavity and the second oil spraying cavity are staggered along the circumferential direction of the core body.

Preferably, the first oil path group and the second oil path group are disposed along an axial direction of the core.

Preferably, the first oil spraying cavity and the second oil spraying cavity are both in a triangular structure; the first oil spraying hole and the second oil spraying hole are respectively arranged at the vertex angle position of the triangular structure.

Preferably, the core is provided with a plurality of protruding keys, and a plurality of the protruding keys are provided along a circumferential direction of the core.

Preferably, the second oil ring is provided with a cover plate, and the cover plate is arranged along Zhou Xianggai of the second oil ring in the second oil spraying cavity.

Preferably, the first oil path group and the second oil path group each include two adjacent oil paths.

Preferably, the core body has an outer peripheral wall, and the oil passage is opened in the outer peripheral wall.

Preferably, the oil cooling motor further comprises a shell, the shell is sleeved on the core, and an oil inlet hole corresponding to the oil inlet oil way is formed in the shell.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic structural diagram of an oil-cooled motor according to an embodiment of the present utility model;

fig. 2 is a schematic view of another angle structure of an oil-cooled motor according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional structure of an oil-cooled motor according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a core according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a first oil ring according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of a second oil ring according to an embodiment of the present utility model.

Reference numerals:

1. a core; 11. a first sidewall; 12. a second sidewall; 13. an oil inlet oil path; 14. a first oil path group; 15. a second oil path group; 16. a protruding key; 17. an oil path; 2. a first oil ring; 21. a first oil chamber; 22. a first oil spraying cavity; 3. a second oil ring; 31. a second oil chamber; 32. a second oil spraying cavity; 33. a cover plate; 4. a housing; 41. and an oil inlet hole.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 to 3, a preferred embodiment of the present utility model provides an oil-cooled motor including a core 1, a first oil ring 2 and a second oil ring 3, the core 1 having a first side wall 11 and a second side wall 12 on both sides thereof; the core body 1 is provided with an oil inlet oil path 13, a plurality of first oil path groups 14 and a plurality of second oil path groups 15; the oil intake passage 13, the first oil passage group 14, and the second oil passage group 15 extend from the first side wall 11 to the second side wall 12, respectively; the first oil ring 2 is connected with the first side wall 11, the first oil ring 2 is provided with a first oil cavity 21 along the circumferential direction thereof, and the first oil cavity 21 is respectively communicated with one end of the oil inlet oil path 13 and one end of the first oil path group 14; the first oil ring 2 is provided with first oil spraying cavities 22 which are in one-to-one correspondence with the second oil way groups 15, and the first oil spraying cavities 22 are communicated with one end of the second oil way groups 15; the first oil injection cavity 22 is provided with a first oil injection hole; the second oil ring 3 is connected with the second side wall 12, the second oil ring 3 is provided with a second oil cavity 31 along the circumferential direction thereof, and the second oil cavity 31 is respectively communicated with the other end of the oil inlet oil path 13 and the other end of the second oil path group 15; the second oil ring 3 is provided with second oil spraying cavities 32 which are in one-to-one correspondence with the first oil way groups 14, and the second oil spraying cavities 32 are communicated with the other end of the first oil way groups 14; the second oil injection chamber 32 is provided with a second oil injection hole.

The working process of the oil cooling motor comprises the following steps: cooling oil is introduced into the oil inlet oil passage 13, and flows into the first oil chamber 21 and the second oil chamber 31 through the oil inlet oil passage 13, respectively; the cooling oil in the first oil cavity 21 flows into the second oil spraying cavity 32 through the first oil path group 14, and the cooling oil in the second oil spraying cavity 32 is sprayed into the winding through the second oil spraying hole; the cooling oil of the second oil chamber 31 flows into the first oil spraying chamber 22 through the second oil path group 15, and the cooling oil of the first oil spraying chamber 22 is sprayed into the winding through the first oil spraying hole; uniform distribution of cooling oil and cooling of the stator core and windings are achieved.

In some preferred embodiments of the present utility model, the first oil passage group 14 and the second oil passage group 15 are staggered in the circumferential direction of the core 1. In this way, the first oil path group 14 and the second oil path group 15 can supply oil in a staggered manner, the same time period for supplying the first oil injection cavity 22 and the second oil injection cavity 32 is ensured, and the uniformity of the cooling effect is ensured.

In some preferred embodiments of the present utility model, the first oil-injecting cavities 22 and the second oil-injecting cavities 32 are staggered in the circumferential direction of the core 1. In this way, the first oil-spraying cavity 22 and the second oil-spraying cavity 32 can be correspondingly arranged with the second oil-spraying channel group 15 and the first oil-spraying channel group 14 which are arranged in a staggered way, so that the flow resistance is reduced, and the distribution efficiency of the cooling oil is improved.

In some preferred embodiments of the present utility model, the first oil passage group 14 and the second oil passage group 15 are disposed along the axial direction of the core 1. In this way, the distance between the first oil passage group 14 and the second oil passage group 15 arranged in the axial direction is the shortest, and the cooling efficiency is improved.

Referring to fig. 5, in some preferred embodiments of the present utility model, both the first and second oil-

spraying chambers

22 and 32 have a triangular structure; the first oil spray hole and the second oil spray hole are respectively arranged at the vertex angle position of the triangular structure. Therefore, when the cooling oil enters the first oil injection cavity 22 and the second oil injection cavity 32, the cooling oil can be quickly concentrated at the top points of the triangular structure, so that the oil injection speed of the first oil injection hole and the second oil injection hole is accelerated, and the cooling efficiency of the cooling oil is improved.

Referring to fig. 4, in some preferred embodiments of the present utility model, the core 1 is provided with a plurality of protruding keys 16, and the plurality of protruding keys 16 are arranged along the circumferential direction of the core 1. So, protruding key 16 can guarantee to fix a position stator core, avoids stator core dislocation and rotation, guarantees the structural stability and the installation convenience of oil cooling motor.

Referring to fig. 6, in some preferred embodiments of the present utility model, the second oil ring 3 is provided with a cover plate 33, and the cover plate 33 is provided to the second oil injection chamber 32 along a periphery Xiang Gai of the second oil ring 3. Thus, the cover plate 33 can ensure that the second oil injection cavity 32 has a top wall thereof, thereby improving stability.

In some preferred embodiments of the present utility model, the first oil passage group 14 and the second oil passage group 15 each include two adjacent oil passages 17. Therefore, the two oil ways 17 are adopted to form an oil way group, so that the flow of cooling oil can be ensured, a plurality of large oil ways 17 are prevented from being arranged on the stator core, and further the rigidity of the stator core is prevented from being reduced.

In some preferred embodiments of the utility model, the core 1 has a peripheral wall, and the oil passage 17 is opened in the peripheral wall. Therefore, the oil way is arranged on the peripheral wall, the manufacturing of the core body 1 is facilitated, the production process is reduced, and the production efficiency is improved.

When the oil passage is opened in the outer peripheral wall, the oil passage needs to be matched with the housing 4 to ensure that the cooling oil is smooth in the oil passage. The oil path can also be arranged in the core body 1, and if the oil path is arranged in the core body 1, the oil path does not need to be by the shell 4.

In some preferred embodiments of the present utility model, the oil-cooled motor further includes a housing 4, the housing 4 is sleeved on the core 1, and the housing 4 is provided with an oil inlet hole 41 corresponding to the oil inlet path 13.

The preferred embodiment of the utility model provides an oil-cooled motor, which is compared with the prior art:

the stator core of the oil-cooled motor has a simple structure, only needs to be provided with the oil inlet oil way 13, the first oil way group 14 and the second oil way group 15, and oil rings are arranged on two side walls of the core body 1, and are conveyed to the corresponding first oil way group 14 and the corresponding second oil way group 15 through the first oil way group 14 and the second oil way group 15, and are conveyed to the corresponding second oil spraying cavity 32 and the corresponding first oil spraying cavity 22 through the second oil spraying hole and the first oil spraying hole, so that the flow resistance of the oil way is small in the whole process, and the cooling oil distribution and the cooling effect are uniform.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. An oil-cooled motor, comprising:

a core (1), the core (1) having a first side wall (11) and a second side wall (12) on both sides thereof; the core body (1) is provided with an oil inlet oil way (13), a plurality of first oil way groups (14) and a plurality of second oil way groups (15); the oil inlet oil passage (13), the first oil passage group (14) and the second oil passage group (15) extend from the first side wall (11) to the second side wall (12) respectively;

the first oil ring (2) is connected with the first side wall (11), a first oil cavity (21) is formed in the first oil ring (2) along the circumferential direction of the first oil ring, and the first oil cavity (21) is respectively communicated with one end of the oil inlet oil path (13) and one end of the first oil path group (14); the first oil ring (2) is provided with first oil spraying cavities (22) which are in one-to-one correspondence with the second oil way groups (15), and the first oil spraying cavities (22) are communicated with one end of the second oil way groups (15); the first oil spraying cavity (22) is provided with a first oil spraying hole;

the second oil ring (3), the second oil ring (3) is connected with the second side wall (12), the second oil ring (3) is provided with a second oil cavity (31) along the circumference of the second oil ring, and the second oil cavity (31) is respectively communicated with the other end of the oil inlet oil path (13) and the other end of the second oil path group (15); the second oil ring (3) is provided with second oil spraying cavities (32) which are in one-to-one correspondence with the first oil way groups (14), and the second oil spraying cavities (32) are communicated with the other end of the first oil way groups (14); the second oil injection cavity (32) is provided with a second oil injection hole.

2. The oil-cooled motor of claim 1, wherein: the first oil way groups (14) and the second oil way groups (15) are arranged in a staggered mode along the circumferential direction of the core body (1).

3. An oil-cooled motor as set forth in claim 2, wherein: the first oil spraying cavities (22) and the second oil spraying cavities (32) are staggered along the circumferential direction of the core body (1).

4. The oil-cooled motor of claim 1, wherein: the first oil path group (14) and the second oil path group (15) are arranged along the axial direction of the core body (1).

5. The oil-cooled motor of claim 1, wherein: the first oil spraying cavity (22) and the second oil spraying cavity (32) are of triangular structures; the first oil spraying hole and the second oil spraying hole are respectively arranged at the vertex angle position of the triangular structure.

6. The oil-cooled motor of claim 1, wherein: the core body (1) is provided with a plurality of protruding keys (16), and the plurality of protruding keys (16) are arranged along the circumferential direction of the core body (1).

7. The oil-cooled motor of claim 1, wherein: the second oil ring (3) is provided with a cover plate (33), and the cover plate (33) is arranged on the second oil spraying cavity (32) along Zhou Xianggai of the second oil ring (3).

8. The oil-cooled motor of claim 1, wherein: the first oil path group (14) and the second oil path group (15) comprise two adjacent oil paths (17).

9. The oil-cooled motor of claim 8, wherein: the core body (1) is provided with an outer peripheral wall, and the oil path (17) is arranged on the outer peripheral wall.

10. The oil-cooled motor of claim 1, wherein: the oil cooling motor further comprises a shell (4), the shell (4) is sleeved on the core body (1), and the shell (4) is provided with an oil inlet hole (41) corresponding to the oil inlet oil way (13).