CN219124059U

CN219124059U - Electric drive system housing for vehicle and vehicle

Info

Publication number: CN219124059U
Application number: CN202320205463.6U
Authority: CN
Inventors: 汪常洋; 张策; 任传委; 赵江浩
Original assignee: Weilai Power Technology Hefei Co Ltd
Current assignee: Weilai Power Technology Hefei Co Ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-06-02
Anticipated expiration: 2033-01-31
Also published as: WO2024159936A1

Abstract

The present utility model relates to an electric drive system housing for a vehicle. The housing includes: the motor comprises a body, wherein the body comprises an inner side surface and an outer side surface, and a mounting area suitable for mounting a motor stator is arranged on the inner side surface; and a heat exchanger mounted on the outer side face, a heat absorbing chamber being formed between the heat exchanger and the outer side face, the heat absorbing chamber being opposite to the mounting region; and a cooling liquid discharge hole is arranged on the heat exchanger and is communicated with the heat absorption cavity, so that the cooling liquid flowing out of the cooling liquid discharge hole flows into the heat absorption cavity to cool the motor stator. The shell of the electric drive system can add cooling for the motor stator, so that the cooling effect of the motor stator is improved; and the heat absorption cavity and the motor stator are oppositely arranged at the inner side and the outer side of the body, and have larger heat exchange areas, so that a better heat exchange effect can be obtained, and the motor stator is cooled more effectively.

Description

Electric drive system housing for vehicle and vehicle

Technical Field

The utility model relates to the field of automobiles, in particular to an electric drive system shell for a vehicle and the vehicle.

Background

The new energy electric drive system is a core component of a new energy automobile, has the function equivalent to an engine and a gearbox of a fuel oil automobile, and mainly comprises a motor, a controller and a transmission assembly. In the working process of the new energy electric drive system, a large amount of heat can be generated due to the resistance loss of a motor stator winding, the switching loss and on-state loss of an Insulated Gate Bipolar Transistor (IGBTs) and a diode in a controller, the friction loss of a transmission part and the like, the heat cannot be timely dissipated, the working efficiency of the new energy electric drive system is not only influenced, but also the service life of the new energy electric drive system is shortened.

In order to dissipate heat of the electric drive system, the existing electric drive system is often provided with an oil cooling system and a heat exchanger, and the oil cooling system takes away heat in the electric drive system through the flowing of oil in the electric drive system, so that the electric drive system is cooled. The heat exchanger is used for cooling the oil with higher temperature in the oil cooling system in a heat exchange mode so as to recycle the oil. Although the temperature of the electric drive system can be reduced to a certain extent by the technical scheme, the heat dissipation effect of the motor stator generating more heat is still poor.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

In order to improve or solve the technical problem of poor heat dissipation effect of a motor stator in the prior art, the utility model provides an electric drive system shell for a vehicle. The housing includes: the motor comprises a body, wherein the body comprises an inner side surface and an outer side surface, and a mounting area suitable for mounting a motor stator is arranged on the inner side surface; and a heat exchanger mounted on the outer side surface, a heat absorbing chamber being formed between the heat exchanger and the outer side surface, the heat absorbing chamber being opposite to the mounting area, a coolant discharge hole being provided on the heat exchanger, the coolant discharge hole being in communication with the heat absorbing chamber such that a coolant flowing out of the coolant discharge hole flows into the heat absorbing chamber to cool the motor stator.

The electric drive system housing for a vehicle of the present utility model includes a body and a heat exchanger mounted (or integrated) on the body, and a heat absorbing chamber is formed between the body and the heat exchanger. The heat exchanger and the heat absorption cavity are communicated through the cooling liquid discharge hole, so that the cooling liquid in the heat exchanger can flow into the heat absorption cavity. The heat absorption cavity is arranged on the outer side surface of the body, the motor stator is arranged in the installation area of the inner side surface of the body, and cooling liquid flowing into the heat absorption cavity can cool the motor stator. Through the arrangement, the shell of the electric drive system can add cooling for the motor stator, so that the cooling effect of the motor stator is improved; and the heat absorption cavity and the motor stator are oppositely arranged at the inner side and the outer side of the body, and have larger heat exchange area, so that a better heat exchange effect can be obtained, and the motor stator is cooled more effectively.

In the above-described electric drive system housing for a vehicle, the heat exchanger includes an adapter, an outer housing mounted on the adapter, and a plurality of partition plates located within the outer housing, the plurality of partition plates extending between the outer housing and the adapter and being spaced apart from each other in parallel so as to form coolant passages and oil passage passages alternately arranged and isolated from each other within the outer housing; the cooling liquid discharge hole is formed in the adapter and communicated with the cooling liquid passage; and the heat absorbing cavity is formed between the outer side surface and the adapter seat. Through the arrangement, the cooling liquid cools the oil in the cooling liquid passage, and then cools the motor stator in the heat absorption cavity, so that the utilization efficiency of the cooling liquid can be improved.

In the above-mentioned electric drive system housing for a vehicle, the adapter includes a first side perpendicular to the coolant passage, a first flow passage extending along the first side is provided in the adapter, the first flow passage has a first inlet and a first outlet, the first inlet is adapted to be communicated with a coolant supply device, and the first outlet is provided on the adapter and serves as an inlet of the coolant passage. With the above arrangement, the first flow passage is used to communicate the coolant supply device and the coolant passage.

In the above-described electric drive system housing for a vehicle, the coolant passages may be plural, each of the coolant passages may be in communication with the first flow passage through a corresponding one of the first outlets and in communication with the heat absorbing chamber through a corresponding one of the coolant discharge holes, and the coolant discharge holes may be located away from the first outlets. Through foretell setting, the export is kept away from to the coolant liquid discharge hole, and the import is kept away from to the export of coolant liquid passageway promptly for the coolant liquid has longer stroke in the coolant liquid passageway, can improve the utilization efficiency of coolant liquid.

In the above-described electric drive system housing for a vehicle, a plurality of outwardly extending needle structures are provided on a side of the adapter facing the heat absorbing chamber. When the oil flows in the oil path, the heat of the oil can be transferred to the adapter, so that the temperature of the adapter is higher. Through the arrangement, the needle-shaped structure is used as an additional heat dissipation structure, so that the surface area of the adapter can be increased, the heat dissipation performance of the adapter is enhanced, and oil liquid is cooled better. Further, the needle-shaped structure can be matched with cooling liquid in the heat absorption cavity, so that the heat dissipation performance of the adapter is further enhanced, and the oil liquid can obtain a better cooling effect.

In the above electric drive system housing for a vehicle, a coolant inlet pipe is provided on an outer side surface of the body, an inlet of the coolant inlet pipe is adapted to be communicated with the coolant supply device, and an outlet of the coolant inlet pipe is in sealing abutment with the first inlet. Through the arrangement, the cooling liquid inlet pipeline is integrated on the body to replace peripheral pipelines surrounding the body, so that the pipelines outside the body are simpler; meanwhile, the pipeline is integrated on the shell to replace an external throwing pipeline, so that the use of oil pipes, connectors and sealing elements can be reduced, sealing butt joint of an outlet of a cooling liquid inlet pipeline and a first inlet can be conveniently realized, and the sealing performance of a liquid passage is greatly improved.

In the above electric drive system housing for a vehicle, the adapter includes a second side opposite to the first side, a second flow passage extending along the second side is provided on the adapter, the second flow passage has a second inlet and a second outlet, the second inlet is adapted to be communicated with an oil supply device, and the second outlet is provided on the adapter and serves as an inlet of the oil path. With the above arrangement, the second flow passage is used to communicate the oil supply device and the oil passage.

In the above-described electric drive system housing for a vehicle, the oil passage may be plural, each of the oil passages may be in communication with the second flow passage through a corresponding one of the second outlets; an oil outlet hole is arranged on the outer shell and positioned above each oil path, and the oil outlet hole is positioned away from the second outlet. Through the arrangement, the inlet of the oil path is arranged on the adapter seat, so that the oil path is arranged below the oil path, the outlet of the oil path is arranged above the oil path, and the oil outlet is far away from the second outlet, namely the outlet of the oil path is far away from the inlet, so that the oil has a longer stroke in the oil path, and the oil can obtain a better cooling effect.

In the above-described electric drive system housing for a vehicle, a circulation pipe adapted to communicate with the oil supply device is provided on the body; the adapter is provided with a total oil outlet which is in sealing butt joint with an inlet of the circulating pipeline, and an oil outlet cavity is arranged between the total oil outlet and the oil outlet hole so that the oil leaving the oil path flows into the circulating pipeline. By the technical scheme, the circulating pipeline is integrated on the body to replace peripheral pipelines surrounding the body, so that the pipeline outside the body is simpler; meanwhile, the circulating pipeline is integrated on the shell to replace an external throwing pipeline, so that the use of oil pipes, connectors and sealing elements can be reduced, the sealing butt joint of the circulating pipeline and a total oil outlet can be realized more conveniently, and the sealing performance of a liquid passage is improved greatly.

In order to solve the technical problem of poor heat dissipation effect of the motor stator in the prior art, the utility model further provides a vehicle, and the vehicle uses the electric drive system shell for the vehicle. By adopting the electric drive system shell in any scheme, the heat dissipation effect of the motor stator of the vehicle is improved.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic illustration of an embodiment of an electric drive system housing for a vehicle of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of an electric drive system housing for a vehicle of the present utility model;

FIG. 3 is an exploded schematic view of an embodiment of a heat exchanger in an electric drive system housing for a vehicle of the present utility model;

FIG. 4 is a schematic view of the internal structure of an embodiment of a heat exchanger in an electric drive system housing for a vehicle of the present utility model;

FIG. 5 is a schematic view of another cross-sectional structure of an embodiment of an electric drive system housing for a vehicle of the present utility model;

fig. 6 is a schematic cross-sectional structure of a heat exchanger in an electric drive system housing for a vehicle of the present utility model.

List of reference numerals:

100. an electric drive system housing.

1. A body; 11. an outer side surface; 111. a connecting wall; 1111. a cooling liquid total outlet; 112. cooling liquid enters the pipeline; 1121. an inlet for the cooling fluid to enter the conduit; 113. an oil inlet pipe; 1131. an inlet of the oil inlet pipeline; 114. a circulation pipe; 1141. an inlet of the circulation pipe; 115. a first needle structure; 12. an inner side surface; 121. a mounting area; 2. a heat exchanger; 21. an adapter; 210. a fourth side; 211. a first side; 212. a second side; 213. a third side; 214. bolt holes; 215. a first flow passage; 2151. a first inlet; 2152. a first outlet; 216. a coolant discharge hole; 217. a second needle structure; 218. a second flow passage; 2181. a second inlet; 2182. a second outlet; 219. a total oil outlet; 22. an outer housing; 221. an oil outlet hole; 23. a partition plate; 24. a cooling liquid passage; 25. an oil passage; 26. an oil outlet cavity; 261. a bottom plate; 2611. a connection part; 26111. a first through hole; 2612. a first end; 26121. a second through hole; 262. a top cover; 263. a connecting cylinder; 3. a heat absorbing chamber.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

In order to improve or solve the technical problem of poor heat dissipation effect of a motor stator in the prior art, the utility model provides an electric drive system shell for a vehicle. The housing includes: the motor comprises a body 1, wherein the body 1 comprises an outer side surface 11 and an inner side surface 12, and a mounting area 121 suitable for mounting a motor stator is arranged on the inner side surface 12; and a heat exchanger 2 mounted on the outer side 11, a heat absorbing chamber 3 being formed between the heat exchanger 2 and the outer side 11, the heat absorbing chamber 3 being opposite to the mounting region 121, a coolant discharge hole 216 being provided on the heat exchanger 2, the coolant discharge hole 216 being in communication with the heat absorbing chamber 3 such that the coolant flowing out of the coolant discharge hole 216 flows into the heat absorbing chamber 3 to cool the motor stator.

FIG. 1 is a schematic view of an embodiment of an electric drive system housing for a vehicle of the present utility model. As shown in fig. 1, the electric drive system housing of the present utility model includes a body 1 and a heat exchanger 2 integrated on the body 1. A heat absorbing chamber 3 is formed between the body 1 and the heat exchanger 2, the heat absorbing chamber 3 being in communication with the heat exchanger 2.

Fig. 2 is a schematic cross-sectional structure of an embodiment of an electric drive system housing for a vehicle of the present utility model. Referring to fig. 1 and 2, the body 1 has opposite outer and

inner sides

11, 12. The inner side 12 faces the interior of the housing. A mounting region 121 for mounting the stator of the electric motor is provided on the inner side 12. The mounting area 121 is opposite the heat absorbing chamber 3. The outer surface 11 is provided with a connecting wall 111 extending from the outer surface 11 to the outside of the body 1. The connecting wall 111 extends substantially around the outer periphery of the heat exchanger 2 for mounting the heat exchanger 2 to the body 1. In one or more embodiments, a plurality of first needle-like structures 115 extending from the outer side 11 into the heat absorbing chamber 3 are provided on the portion of the outer side 11 surrounded by the connecting wall 111. The first plurality of needle structures 115 are spaced apart from one another and are distributed on lateral side 11.

Referring to fig. 1 and 2, in one or more embodiments, the connecting wall 111 has a left side wall, a right side wall, a front side wall, and a rear side wall based on the orientation shown in fig. 1. A coolant inlet pipe 112 is provided outside and near the left side wall of the connection wall 111. The coolant inlet line 112 is integrated on the outer side 11. The coolant inlet conduit 112 has an inlet 1121 and an opposite outlet (not labeled in the figures). The inlet 1121 of the coolant inlet duct 112 is adapted to communicate with a coolant supply. The portion of the coolant inlet duct 112 near its outlet extends into the heat absorption chamber 3. The outlet of the coolant inlet conduit 112 is disposed below the heat exchanger 2 and is in fluid communication with the heat exchanger 2.

With continued reference to fig. 1, an oil inlet duct 113 is provided outside and near the front side wall of the connection wall 111. The oil inlet pipe 113 is integrated on the outer side 11. The oil feed pipe 113 has an inlet and an outlet (not shown) opposite to each other. The inlet of the oil feed pipe 113 is adapted to communicate with an oil supply. The portion of the oil feed pipe 113 near the outlet thereof extends into the heat absorbing chamber 3. An outlet of the oil feed line 113 is disposed below the heat exchanger 2 and is in fluid communication with the heat exchanger 2.

With continued reference to fig. 1, a total coolant outlet 1111 is provided in the right side wall of the connecting wall 111. The coolant total outlet 1111 is located near the rear side wall. The cooling liquid total outlet 1111 is adapted to be in communication with a cooling liquid supply device. A circulation duct 114 is provided at the junction of the right side wall and the rear side wall of the connection wall 111. The circulation duct 114 is located outside the connection wall. The inlet 1141 of the circulation duct 114 is in fluid communication with the heat exchanger 2. The outlet of the circulation duct 114 is adapted to communicate with an oil supply.

Referring to fig. 1 and 2, the coolant flows from the coolant supply device into the coolant inlet pipe 112, flows into the heat exchanger 2 along the coolant inlet pipe 112 (see a flow direction indicated by an arrow at the coolant inlet pipe 112 in fig. 1), then flows from the heat exchanger 2 into the heat absorbing chamber 3 (see a flow direction indicated by an arrow in fig. 2), and finally flows back from the coolant total outlet 1111 to the coolant supply device. The oil flows from the oil supply into the oil feed pipe 113, then flows from the oil feed pipe 113 into the heat exchanger 2 (see the flow direction of the arrow at the oil feed pipe 113 in fig. 1), then flows into the circulation pipe 114, and finally flows back to the oil supply. The oil and the cooling liquid exchange heat in the heat exchanger 2.

Referring to fig. 1 and 2, in one or more embodiments, the cooling fluid includes, but is not limited to, water and oil. In one or more embodiments, the cooling fluid is water. The coolant supply device includes an automobile tank, and the coolant total outlet 1111 and the coolant inlet pipe 112 are both communicated with the automobile tank for recycling of the coolant. In one or more embodiments, the controller of the electric drive system is integrated on the body 1, and the inlet 1121 of the coolant inlet pipe 112 communicates with the outlet of the coolant channel of the I GBT (insulated gate bipolar transistor) in the controller. The coolant flows from the coolant supply to the coolant channels of the GBT, and then flows from the coolant channels of the GBT into the coolant inlet pipe 112. In one or more embodiments, the coolant inlet conduit 112 extends from the outlet of the coolant channel of the GBT to the heat exchanger 2. The inlet of the coolant inlet pipe 112 is in sealed butt joint with the outlet of the coolant channel of the GBT, and the outlet is in sealed butt joint with the heat exchanger 2. In one or more embodiments, the sealing interface may be achieved using a seal, which may be a sealing ring. Alternatively, the sealing butt joint can be realized by adopting a welding plugging mode. Through foretell setting, with coolant liquid entering pipeline 112 integration on body 1, can cancel the outer pipeline of getting rid of, reduce oil pipe, connect and sealing member's use, the sealed butt joint of coolant liquid entering pipeline 112 and I GBT's coolant liquid passageway, heat exchanger 2 that can be comparatively convenient promotes the sealing performance of liquid passageway by a wide margin.

Referring to fig. 1, in one or more embodiments, the oil supply device is an oil cooling system, and the oil supply device extracts oil in the electric drive system housing 100 and delivers the oil to the oil inlet pipe 113, and simultaneously, the oil returned from the circulation pipe 114 is thrown into the electric drive system housing 100, so that the oil can be recycled. In one or more embodiments, the oil feed conduit 113 extends from the oil supply to the heat exchanger 2. The inlet of the oil inlet pipeline 113 is in sealing butt joint with the outlet of the oil supply device; the outlet of the oil inlet pipe 113 is in sealing butt joint with the heat exchanger 2 so as to reduce the use of oil pipes, joints and sealing elements and improve the sealing performance of the liquid passage.

Fig. 3 is an exploded schematic view of an embodiment of the heat exchanger 2 in an electric drive system housing for a vehicle of the present utility model, and fig. 4 is an internal structural schematic view of an embodiment of the heat exchanger 2 in an electric drive system housing for a vehicle of the present utility model. Referring to fig. 2 and 3, in one or more embodiments, the heat exchanger 2 includes an adapter 21, an outer housing 22 mounted on the adapter 21, and a plurality of baffles 23 within the outer housing 22.

Referring to fig. 2 and 4, in one or more embodiments, the adapter 21 has an outer periphery (not labeled in the figures). The outer periphery is supported on the top of the connecting wall 111 and forms a fixed and sealed connection with the top. Therefore, a gap is formed between the adaptor 21 and the outer side surface 11 of the body 1. By means of the connecting wall 111, the gap between the adapter 21 and the outer side 11 of the body 1 is closed as a heat absorbing chamber 3. In other words, the adapter 21, the connecting wall 111 and the outer side 11 of the body 1 together enclose the heat absorbing chamber 3 opposite the mounting area 121, and the heat absorbing chamber 3 is located below the adapter 21.

In one or more embodiments, the adapter 21 is a generally rectangular plate-like structure. As shown in fig. 1 and 4, the outer periphery of the adapter 21 includes a first side 211, a second side 212, a third side 213, and a fourth side 210 that are sequentially connected. The first side 211 forms a fixed connection with the top of the rear side wall of the connecting wall 111; the second side 212 forms a fixed connection with the top of the front side wall of the connecting wall 111; the third side 213 forms a fixed connection with the top of the left side wall of the connecting wall 111; the fourth side 210 forms a fixed connection with the top of the right side wall of the connecting wall 111. In one or more embodiments, at least one bolt hole 214 is provided on each of the first side 211, the second side 212, the third side 213, and the fourth side 210 to detachably secure the adapter 21 to the connection wall 111 via bolts or other threaded connections. Alternatively, the adapter 21 and the connecting wall 111 are fixed together by welding or the like.

As shown in fig. 2, in one or more embodiments, a plurality of second needle-like structures 217 are distributed on the surface of the adaptor base 21 facing the heat absorbing chamber 3, spaced apart from each other. The second needle-like structure 217 extends towards the interior of the heat absorbing chamber 3. In one or more embodiments, a portion of the top of the second needle structure 217 in the heat absorption chamber 3 abuts against a portion of the top of the first needle structure 115 in the heat absorption chamber 3, so that heat from the interior of the body 1 is transferred to the second needle structure 217 through the first needle structure 115, thereby better cooling the body 1 and better cooling the motor stator. In one or more embodiments, the extended end of the first needle structure 115 extends onto the adapter 21 and forms a fixed connection with the adapter 21. Alternatively, the extended end of the second needle-like structure 217 extends onto the outer side 11 and forms a fixed connection with the outer side 11. In one or more embodiments, first needle structures 115 and second needle structures 217 may be replaced with other raised structures. The first needle-like structures 115 increase the heat exchange area of the body 1 and the coolant, thereby enhancing the cooling effect of the motor stator. The second needle-like structure 217 increases the heat exchange area of the adapter 21, thereby better cooling the oil in the heat exchanger 2.

Referring to fig. 2 and 4, in one or more embodiments, a coolant drain hole 216 is provided in the adaptor 21 proximate to the second side 212. A coolant discharge hole 216 penetrates the adapter 21 to communicate the heat exchanger 2 and the heat absorbing chamber 3. The plurality of coolant discharge holes 216 are provided, and the plurality of coolant discharge holes 216 are uniformly arranged along the length direction of the second side 212.

Referring to fig. 3, in one or more embodiments, a total oil outlet 219 is provided on the fourth side 210 of the adapter 21. The aggregate outlet 219 is adjacent the first side 211 and sealingly interfaces with the inlet 1141 of the circulation duct 114.

Referring to fig. 2 and 4, flow path portions are provided on the adapter 21 near the first side 211 and the second side 212, respectively, the flow path portions being provided on the surface of the adapter 21 facing the outer side 11. Both flow gate portions extend in the length direction of the first side edge 211. A first flow channel 215 is provided in the flow channel portion adjacent to the first side edge 211. The first flow channel 215 extends along the length of the gate and has a first inlet 2151 and a first outlet 2152. The first inlet 2151 is open on the side of the gate facing the outer side 11 and close to the third side 213, so that the first inlet 2151 sealingly interfaces with the outlet of the coolant inlet duct 112. The first outlet 2152 is provided in the adapter 21, i.e. above the first flow channel 215. The first outlets 2152 are provided in plurality, and the plurality of first outlets 2152 are uniformly arranged along the length direction of the first flow path 215. In one or more embodiments, the coolant discharge holes 216 are in one-to-one correspondence with the first outlets 2152 and are aligned along the length of the third side 213.

Fig. 5 is a schematic view showing another cross-sectional structure of an embodiment of the electric drive system housing for a vehicle of the present utility model, and fig. 6 is a schematic view showing a cross-sectional structure of a heat exchanger in the electric drive system housing for a vehicle of the present utility model. Referring to fig. 5 and 6, in one or more embodiments, a second flow channel 218 is provided in the flow conduit portion proximate the second side edge 212. The second flow channel 218 extends along the length of the flow gate and has a second inlet 2181 and a second outlet 2182. The second inlet 2181 opens on the side of the gate facing the outer side 11 and close to the third side 213 so that the second inlet 2181 sealingly interfaces with the outlet of the oil inlet duct 113. The second outlet 2182 is disposed on the adapter 21, i.e. above the second flow channel 218. The second outlets 2182 are provided in plurality, and the plurality of second outlets 2182 are uniformly arranged.

Referring to fig. 2 and 3, in one or more embodiments, the outer housing 22 is generally rectangular box-shaped and encloses a heat exchange chamber with the surface of the adapter 21 facing away from the outer side 11. A plurality of oil outlet holes 221 are formed in the top wall of the outer case 22. The plurality of oil outlet holes 221 are adjacent to the first side 211 and are uniformly arranged along the length direction of the first side 211. In one or more embodiments, the oil outlet holes 211 are in one-to-one correspondence with the second outlets 2182 of the second flow channels 218, and are located on the same line along the length direction of the third side 213.

Referring to fig. 3, in one or more embodiments, an oil outlet chamber 26 is provided on one side of the outer housing 22. The oil outlet chamber 26 communicates the total oil outlet 219 and the oil outlet hole 221. In one or more embodiments, oil outlet chamber 26 is enclosed by a bottom plate 261, a top cover 262, and a connecting barrel 263. The base plate 261 includes a connection portion 2611 and a first end portion 2612. The connection portion 2611 covers on the top wall of the outer case 22, and a plurality of first through holes 26111 spaced apart from each other are opened on the connection portion 2611. The first through holes 26111 are in one-to-one correspondence with the oil outlet holes 221. Alternatively, the first through hole 26111 may be provided as one, and the first through hole 26111 is provided in an elongated shape above each oil outlet hole 221. The first end 2612 is disposed above the aggregate outlet 219, and a second through hole 26121 is opened in the first end 2612. The second through hole 26121 is approximately the same size as the total oil outlet 219. In one or more embodiments, top cover 262 overlies base plate 261 and encloses a lateral flow path with base plate 261 for oil chamber 26. The oil in the heat exchanger 2 may flow from the oil outlet 221 into the lateral flow passage through the first through hole 26111. In one or more embodiments, the connecting cylinder 263 has a hollow cylinder, and forms a vertical flow passage of the oil outlet chamber 26 with the first end 2612, and the oil flowing into the lateral flow passage flows from the second through hole 26121 into the total oil outlet 219 through the hollow cylinder of the connecting cylinder 263, and then flows into the circulation pipe 114.

Referring to fig. 3 and 4, in one or more embodiments, the separator 23 is a generally rectangular plate and is provided with a plurality of blocks. A plurality of baffles 23 are spaced apart along the length of the first side 211 within the heat exchange chamber, and each baffle 23 extends between two opposing side walls of the outer shell 22 perpendicular to the first side 211. The upper side surface of the partition plate 23 is propped against and fixed with the upper wall of the outer shell 22, and the lower side surface of the partition plate 23 is propped against and fixed with the adapter 21; the left and right sides of the partition 23 are fixed against the two opposite side walls of the outer case 22, thereby enclosing a plurality of passages isolated from each other. In one or more embodiments, the partition 23 is in a sealed connection with the adapter 21 and the outer housing 22 by brazing, so as to ensure mutual isolation between the passages.

Referring to fig. 3 and 4, the passages include a coolant passage 24 for flowing coolant and an oil passage 25 for flowing oil. The coolant passages 24 and the oil passages 25 are alternately arranged. In one or more embodiments, each coolant passage 24 is in communication with the first flow channel 215 through a first outlet 2152 and with the heat absorption chamber 3 through a coolant drain hole 216. Alternatively, 2 or other suitable numbers of

first outlets

2152 and 2 or other suitable numbers of coolant drain holes 216 may be provided per coolant passage 24. As indicated by the arrow in fig. 2, the coolant flows from the coolant inlet pipe 112 into the first flow passage 215 through the first inlet 2151, flows into the coolant passage 24 through the first outlet 2152, flows into the heat absorbing chamber 3 through the coolant discharge hole 216, and finally is discharged from the coolant total outlet 1111.

Referring to fig. 4 and 6, in one or more embodiments, each oil passage 25 is in communication with the second flow passage 218 through a second outlet 2182 and with the oil outlet chamber 26 through an oil outlet 221. Alternatively, 2 or other suitable numbers of

second outlets

2182 and 2 or other suitable numbers of oil outlet holes 221 may be provided per oil passage 25. As shown by the arrow in fig. 6, the oil flows from the oil intake pipe 113 into the second flow passage 218 through the second inlet 2181, flows from the second outlet 2182 into the oil passage 25, is discharged into the oil discharge chamber 26 through the oil outlet 221, and flows from the total oil outlet 219 into the circulation pipe 114.

The vehicle of the utility model uses the electric drive system housing for the vehicle. The vehicle may be any suitable electric vehicle, hybrid electric vehicle, or the like.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will be within the scope of the present utility model.

Claims

1. An electric drive system housing for a vehicle, the housing comprising:

the motor comprises a body, wherein the body comprises an inner side surface and an outer side surface, and a mounting area suitable for mounting a motor stator is arranged on the inner side surface; and

and a heat exchanger mounted on the outer side surface, a heat absorbing cavity formed between the heat exchanger and the outer side surface, the heat absorbing cavity being opposite to the mounting area, a coolant discharge hole being provided on the heat exchanger, the coolant discharge hole being in communication with the heat absorbing cavity such that a coolant flowing out of the coolant discharge hole flows into the heat absorbing cavity to cool the motor stator.

2. An electric drive system housing for a vehicle as set forth in claim 1, wherein,

the heat exchanger includes an adapter, an outer housing mounted on the adapter, and a plurality of partitions within the outer housing, the plurality of partitions extending between the outer housing and the adapter and being spaced apart from each other in parallel so as to form alternately arranged and mutually isolated coolant passages and oil passages within the outer housing;

the cooling liquid discharge hole is formed in the adapter and communicated with the cooling liquid passage; and is also provided with

The heat absorbing cavity is formed between the outer side face and the adapter seat.

3. An electric drive system housing for a vehicle as set forth in claim 2, wherein,

the adapter comprises a first side edge perpendicular to the cooling liquid passage, a first runner extending along the first side edge is arranged in the adapter, the first runner is provided with a first inlet and a first outlet, the first inlet is suitable for being communicated with the cooling liquid supply device, and the first outlet is arranged on the adapter and serves as an inlet of the cooling liquid passage.

4. The electric drive system housing for a vehicle of claim 3, wherein the coolant passages are plural, each of the coolant passages is in communication with the first flow passage through a corresponding one of the first outlets and is in communication with the heat absorbing chamber through a corresponding one of the coolant discharge holes, and the coolant discharge holes are positioned away from the first outlets.

5. An electric drive system housing for a vehicle according to claim 3, characterized in that a plurality of outwardly extending needle-like structures are provided on the side of the adapter facing the heat absorbing chamber.

6. An electric drive system housing for a vehicle according to claim 3, characterized in that a coolant inlet duct is provided on the outer side of the body, the inlet of the coolant inlet duct being adapted to communicate with the coolant supply means, and the outlet of the coolant inlet duct being in sealing abutment with the first inlet.

7. An electric drive system housing for a vehicle as set forth in claim 3 wherein said adapter includes a second side opposite said first side, a second flow passage extending along said second side being open on said adapter, said second flow passage having a second inlet adapted to communicate with an oil supply means and a second outlet open on said adapter as an inlet to said oil passage.

8. The electric drive system housing for a vehicle of claim 7, wherein the housing is configured to receive the electric motor,

the oil passage is provided with a plurality of oil passages, and each oil passage is communicated with the second flow passage through a corresponding second outlet;

an oil outlet hole is arranged on the outer shell and positioned above each oil path, and the oil outlet hole is positioned away from the second outlet.

9. The electric drive system housing for a vehicle of claim 8, wherein the housing is configured to receive the electric motor,

the body is provided with a circulating pipeline which is suitable for being communicated with the oil supply device;

the adapter is provided with a total oil outlet which is in sealing butt joint with an inlet of the circulating pipeline, and an oil outlet cavity is arranged between the total oil outlet and the oil outlet hole so that oil leaving the oil path flows into the circulating pipeline.

10. A vehicle, characterized in that it comprises an electric drive system housing for a vehicle according to any one of claims 1-9.