Motor heat exchange structure, motor assembly and vehicle

Abstract

The utility model discloses a motor heat exchange structure, a motor assembly and a vehicle. The motor heat exchange structure comprises a shell, a heat exchange cavity is defined by the shell, an inlet and a first outlet which are communicated with the heat exchange cavity are formed in the shell, the inlet and the first outlet are both communicated with the heat exchange cavity, the first outlet is arranged close to the speed reducer side, and the first outlet is arranged close to the speed reducer side. And the first outlet is used for enabling a heat exchange medium to flow to an auxiliary shaft of the speed reducer. According to the motor heat exchange structure, the design route of the channel on the motor shell can be optimized, so that the processing difficulty is reduced, and the viscous resistance of the channel to the heat exchange medium can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and more specifically, to a motor heat exchange structure, a motor assembly and a vehicle. Background Art

[0002] In the related art, the integrated motor oil cooler is an oil cooler integrated on the motor housing, and the integration of the oil cooler and the housing is achieved through an integrated casting process. However, the oil passages in the existing integrated motor oil coolers are relatively complex, and the overall resistance to the flow of oil is relatively large, which easily leads to low oil pressure, thereby reducing the cooling and lubrication efficiency. In addition, the complex oil passages make the processing technology more difficult and the processing cost higher.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution for a motor heat exchange structure.

[0005] According to a first aspect of the utility model, a motor heat exchange structure is provided. The motor heat exchange structure comprises: a shell, the shell defines a heat exchange cavity, the shell is provided with an inlet and a first outlet communicating with the heat exchange cavity, the inlet and the first outlet are both communicated with the heat exchange cavity, the first outlet is provided close to the reducer side, and the first outlet is used to flow the heat exchange medium to the secondary shaft of the reducer.

[0006] Optionally, the shell is further provided with a second outlet connected to the heat exchange chamber, the second outlet is used to flow the heat exchange medium to the reducer side, the second outlet is arranged close to the reducer side, and the first outlet is located between the inlet and the second outlet.

[0007] Optionally, a third outlet communicating with the heat exchange cavity is further provided on the shell, and the third outlet is arranged close to the motor end cover.

[0008] Optionally, the inlet is arranged close to the reducer side.

[0009] Optionally, the shell has a first side, a second side, a third side and a fourth side which are connected end to end in sequence, the first side is close to the reducer side, and the first outlet is located on the first side.

[0010] Optionally, the second side is close to the motor end cover, the inlet is located at the connection between the first side and the fourth side, the second outlet is located at the connection between the first side and the second side, and the third outlet is located at the connection between the second side and the third side.

[0011] Optionally, a first flow channel is formed in the heat exchange cavity, the first flow channel is suitable for circulating the heat exchange medium, one end of the first flow channel is connected to the inlet, and the other end is connected to the second outlet, and the first outlet is located on the side of the second outlet close to the inlet.

[0012] Optionally, a second flow channel is further formed in the heat exchange cavity, one end of the second flow channel is connected to the inlet, and the other end of the second flow channel is connected to the third outlet, and the first flow channel and the second flow channel are arranged in parallel.

[0013] Optionally, a first flow guide is provided in the heat exchange chamber to divide the heat exchange chamber into the first flow channel and the second flow channel.

[0014] According to a second aspect of the utility model, a motor assembly is provided. The motor assembly includes a motor and a reducer, and the motor heat exchange structure of the above embodiment, wherein the motor heat exchange structure is arranged on the motor housing, and the first outlet is arranged near the reducer side, and the first outlet is used to flow the heat exchange medium to the secondary shaft of the reducer.

[0015] Optionally, the shell of the motor heat exchange structure and the motor casing are integrally arranged.

[0016] According to a third aspect of the utility model, a vehicle is provided, which includes the motor assembly of the above embodiment.

[0017] One of the technical effects of the present application is that after the heat exchange medium flows out from the first outlet, it flows to the reducer through the channel on the motor housing to cool the reducer secondary shaft. The first outlet is arranged close to the reducer side, so that the design route of the channel on the housing can be optimized to reduce the processing difficulty and reduce the viscous resistance of the channel to the heat exchange medium.

[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] Figure 1 It is a schematic diagram of the housing structure of the motor according to an embodiment of the present application.

[0021] Figure 2 yes Figure 1 A cross-sectional view of the housing structure is shown.

[0022] Figure 3 yes Figure 1 A partial cross-sectional view of the housing structure is shown.

[0023] Figure 4 yes Figure 1 A partial cross-sectional view of the housing structure is shown.

[0024] Figure 5 yes Figure 1 A partial cross-sectional view of the housing structure is shown.

[0025] Figure 6 yes Figure 1 A partial cross-sectional view of the housing structure is shown.

[0026] Figure 7 It is a schematic diagram of the structure of the main shaft and the secondary shaft of an embodiment of the present application.

[0027] Reference numerals:

[0028] 1. Shell; 2. Cover plate; 3. Second channel; 4. Third channel; 5. Oil pump outlet; 6. Oil pump inlet; 7. Fourth channel; 8. Inlet; 9. Spoiler; 10. First outlet; 11. Second outlet; 12. Plug; 13. Third outlet; 14. First flow guide; 15. First channel; 16. First oil injection port; 17. Fifth channel; 18. Sixth channel; 19. Countershaft bearing; 20. First main shaft bearing; 21. Transmission connection; 22. Second main shaft bearing; 23. Motor housing; 231. Mounting part; 24. Second flow guide; 25. First flow channel; 26. Second flow channel; 27. First side; 28. Second side; 29. ​​Third side; 30. Fourth side. DETAILED DESCRIPTION

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0032] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0033] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0034] According to one embodiment of the present application, a motor heat exchange structure is provided. Figures 1 to 7 As shown, a shell 1 defines a heat exchange cavity, and an inlet 8 and a first outlet 10 connected to the heat exchange cavity are provided on the shell 1. The inlet 8 and the first outlet 10 are both connected to the heat exchange cavity, and the first outlet 10 is arranged close to the reducer side, and the first outlet 10 is used to flow the heat exchange medium to the secondary shaft of the reducer.

[0035] In this example, after the heat exchange medium flows out from the first outlet 10, it flows to the reducer through the channel on the motor housing 23 to cool the reducer secondary shaft. The first outlet 10 is arranged close to the reducer side, so that the design route of the channel on the motor housing 23 can be optimized to reduce the processing difficulty and reduce the viscous resistance of the channel to the heat exchange medium.

[0036] For example, Figure 5 and Figure 7 As shown, the motor housing 23 is provided with a first channel 15, one end of which is connected to the first outlet 10, and the other end is directed to the secondary shaft bearing 19. That is, a first oil injection port 16 is provided at the other end of the first channel 15, and the first oil injection port 16 is arranged toward the secondary shaft bearing 19. The oil enters the first channel 15 from the first outlet 10, and then sprays out from the first oil injection port 16 after passing through the first channel 15, and sprays toward the secondary shaft bearing 19 to cool and lubricate the secondary shaft bearing 19. The first outlet 10 of the motor heat exchange structure in the present application is arranged close to the reducer side, that is, the position of the first outlet 10 is close to the secondary shaft bearing 19, so that the length of the first channel 15 can be shortened to reduce the difficulty of processing, and the viscous resistance of the first channel 15 to the heat exchange medium can be reduced.

[0037] In this example, the heat exchange structure may be an oil cooler of the motor, and the heat exchange medium may be thermal oil, which can cool and lubricate the secondary shaft of the reducer.

[0038] In this example, the shell 1 is provided with an opening, which is sealed by a cover plate 2 to seal the heat exchange medium in the cavity. The cover body can be fixedly connected to the shell 1 by fasteners such as bolts. The joint surface between the cover body and the shell 1 can be sealed by a special sealing ring, or can also be sealed by a sealant.

[0039] In an example, Figure 4As shown, the shell 1 is also provided with a second outlet 11 connected to the heat exchange chamber, and the second outlet 11 is used to flow the heat exchange medium to the reducer side. The second outlet 11 is arranged close to the reducer side, and the first outlet 10 is located between the inlet 8 and the second outlet 11.

[0040] In this example, if Figure 2 and Figure 6 As shown, the motor housing 23 is provided with a fifth channel 17 and a sixth channel 18. One end of the fifth channel 17 is connected to the second outlet 11, and the other end is connected to one end of the sixth channel 18. The main shaft of the reducer is connected to the secondary shaft by transmission, for example, the main shaft and the secondary shaft are connected by gear meshing. One end of the sixth channel 18 away from the fifth channel 17 extends toward the transmission connection 21 and the first bearing 20 of the main shaft. Two oil spray ports are provided on the sixth channel 18, and the two oil spray ports are respectively arranged toward the transmission connection 21 and the first bearing 20 of the main shaft to spray oil cooling and lubrication to the transmission connection 21 and the first bearing 20 of the main shaft. The second outlet 11 of the motor heat exchange structure of the present application is arranged close to the reducer, so that the overall length of the fifth channel 17 and the sixth channel 18 can be shortened, which is conducive to reducing the difficulty of processing, and can reduce the viscous resistance of the fifth channel 17 and the sixth channel 18 to the heat exchange medium to improve the cooling and lubrication effect.

[0041] like Figure 2 As shown, one end of the sixth channel 18 extends toward the surface of the motor housing 23 and passes through the motor housing 23. That is, when the sixth channel 18 is processed, it is processed inward from the surface of the motor housing 23. A plug 12 is provided at the end of the sixth channel 18 to facilitate sealing of the sixth channel 18 after processing.

[0042] like Figure 4 As shown, the first outlet 10 can be arranged between the inlet 8 and the second outlet 11, so that the first outlet 10 can be located close to the secondary shaft bearing 19, and the second outlet 11 can be located close to the transmission connection 21 of the reducer main shaft and the secondary shaft and the main shaft first bearing 20. This facilitates the optimization of the design route of the channel on the motor housing 23 to reduce the processing difficulty, and can reduce the viscous resistance of each channel to the heat exchange medium.

[0043] In an example, Figure 4 As shown, the housing 1 is also provided with a third outlet 13 connected to the heat exchange chamber, and the third outlet 13 is arranged near the motor end cover. The end of the reducer main shaft near the motor end cover is sleeved with a main shaft second bearing 22, and the third outlet 13 corresponds to the main shaft second bearing 22. That is, the third outlet 13 is used to flow the heat exchange medium to the main shaft second bearing 22.

[0044] In this example, the motor housing 23 is provided with a seventh channel, one end of which is connected to the third outlet 13, and the other end extends toward the second main shaft bearing 22. An oil spray port is provided at one end of the seventh channel away from the third outlet 13, and the oil spray port is arranged toward the second main shaft bearing 22, so as to spray oil to the second main shaft bearing 22 for cooling and lubrication. The third outlet 13 of the present application is arranged close to the motor end cover side, that is, the third outlet 13 can be arranged close to the second main shaft bearing 22. Thereby, the length of the seventh channel can be shortened, which is conducive to reducing the difficulty of processing, and the viscous resistance of the seventh channel to the heat exchange medium can be reduced to improve the cooling and lubrication effects.

[0045] In one example, the inlet 8 is disposed close to the reducer side.

[0046] like Figures 1 to 3 As shown, a mounting portion 231 is provided on the motor housing 23 for mounting an oil pump. And oil can be transported by the oil pump. Among them, the oil pump can be fixedly connected to the mounting portion 231 by fasteners such as bolts, or can also be installed on the mounting portion 231 by a snap-on method. The mounting portion 231 has an oil pump outlet 5, and the oil pump outlet 5 is connected to the inlet 8 of the housing 1 through a fourth channel 7. The motor housing 23 is also provided with a second channel 3 and a third channel 4, one end of the second channel 3 is connected to the third channel 4, and the third channel 4 is also provided with an oil pump inlet 6 for inputting oil to the oil pump. The oil enters the second channel 3 after being filtered by the filter element at the bottom of the heat exchange structure, and then flows into the third channel 4, and the oil is input through the oil pump inlet 6.

[0047] The heat exchange medium flowing from the first outlet 10, the second outlet 11 and the third outlet 13 to the reducer can flow from the end of the second channel 3 away from the third channel 4 and be transported by the oil pump. The inlet 8 is arranged near the reducer side, so that the overall length of the second channel 3 and the third channel 4 can be shortened, which is conducive to reducing the processing difficulty and can reduce the viscous resistance of the second channel 3 and the third channel 4 to the heat exchange medium.

[0048] like Figure 2 As shown, the end of the third channel 4 away from the second channel 3 extends toward the surface of the motor housing 23 and passes through the motor housing 23. That is, when the third channel 4 is processed, it is processed from the surface of the motor housing 23 to the inside. A plug 12 is provided at the end of the third channel 4 to facilitate sealing of the third channel 4 after processing.

[0049] like Figure 2As shown, in this example, the housing 1 is provided with three outlets, and the three outlets are arranged at intervals. The motor housing 23 is provided with a plurality of channels, and each outlet is correspondingly connected to a respective channel. The other ends of the channels extend to the parts to be cooled, for example, the main shaft and the secondary shaft of the reducer, etc., respectively. To cool down the parts to be cooled. Of course, four or five outlets can also be provided. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here.

[0050] The position of each outlet corresponds to the position of the corresponding part to be cooled. This can reduce the length of the channel and the bending section in the motor housing 23, thereby simplifying the arrangement of the channel of the motor housing 23, reducing the difficulty of processing and saving production costs. For example, the three outlets are the first outlet 10, the second outlet 11 and the third outlet 13. The inlet 8, the first outlet 10 and the second outlet 11 are located on the same side of the housing 1, and the first outlet 10 is located between the inlet 8 and the second outlet 11. The third outlet 13 is located on the other side opposite to the second outlet 11. Of course, the positions of the various outlets can be determined by those skilled in the art according to actual conditions, and are not specifically limited here.

[0051] In an example, Figure 4 As shown, the housing 1 has a first side 27 , a second side 28 , a third side 29 and a fourth side 30 which are connected end to end in sequence. The first side 27 is close to the reducer side, and the first outlet 10 is located at the first side 27 .

[0052] The housing 1 has a first side 27, a second side 28, a third side 29 and a fourth side 30. The four sides are connected end to end in sequence to form a square heat exchange cavity. The first side 27 is arranged close to the speed reducer side, and the first outlet 10 is located on the first side 27 so that the first outlet 10 can be close to the speed reducer side.

[0053] Of course, the shell 1 may also be in other shapes, for example, it may also be set to be a cylinder or other irregular shapes, etc. Those skilled in the art may determine it according to actual conditions, and no specific limitation is made here.

[0054] In one example, the second side 28 is close to the motor end cover side, the first side 27 is connected to the second side 28, the inlet 8 is located at the connection between the first side 27 and the fourth side 30, the second outlet 11 is located at the connection between the first side 27 and the second side 28, and the third outlet 13 is located at the connection between the second side 28 and the third side 29.

[0055] In this example, if Figure 4As shown, one end of the second side 28 is connected to one end of the first side 27. The inlet 8 is located at the connection between the first side 27 and the fourth side. The second outlet 11 is located at the connection between the first side 27 and the second side 28, that is, the inlet 8 and the second outlet 11 are respectively located at the two ends of the first side 27. The first inlet 8 can be located in the middle of the first side 27. Or it can also be arranged close to the second outlet 11, or close to the inlet 8. Those skilled in the art can decide according to the actual situation, and no specific limitation is made here. That is, the inlet 8, the first outlet 10 and the second outlet 11 are all arranged on the first side 27, so that the inlet 8, the first outlet 10 and the second outlet 11 can all be arranged close to the reducer side.

[0056] like Figure 4 As shown, the third outlet 13 is arranged at the second side 28. For example, the third outlet 13 is located at the connection between the second side 28 and the third side 29. That is, the third outlet 13 is located at an end of the second side 28 away from the first outlet 10. The second side 28 is arranged close to the motor end cover so that the third outlet 13 can be arranged close to the motor end cover side.

[0057] In an example, Figure 4 As shown, a first flow channel 25 is formed in the heat exchange cavity, and the first flow channel 25 is suitable for circulating the heat exchange medium. One end of the first flow channel 25 is connected to the inlet 8, and the other end is connected to the second outlet 11. The first outlet 10 is located on the side of the second outlet 11 close to the inlet 8.

[0058] like Figure 4 As shown, a first flow channel 25 is provided in the heat exchange cavity, one end of the first flow channel 25 is connected to the inlet 8, and the other end is connected to the second outlet 11. The first outlet 10 is provided on the side of the second outlet 11 close to the inlet 8, and the first outlet 10 is connected to the first flow channel 25. The heat exchange medium flows from the inlet 8 into the first flow channel 25, and then flows to the first outlet 10 and the second outlet 11 respectively through the first flow channel 25.

[0059] In an example, Figure 4 As shown, a second flow channel 26 is further formed in the heat exchange cavity, one end of the second flow channel 26 is connected to the inlet 8, and the other end is connected to the third outlet 13, and the first flow channel 25 and the second flow channel 26 are arranged in parallel.

[0060] In this example, a second flow channel 26 is provided in the heat exchange chamber in parallel with the first flow channel 25. One end of the second flow channel 26 is connected to the inlet 8, and the other end is connected to the third outlet 13. The heat exchange medium flowing in from the inlet 8 flows into the third outlet 13 through the second flow channel 26.

[0061] In this example, the length of the first flow channel 25 is greater than the length of the second flow channel 26. One end of the first flow channel 25 is connected to the inlet 8, and the other end is connected to the second outlet 11. The first flow channel 25 is also provided with a first outlet 10, for example, the first outlet 10 is provided in the middle of the first flow channel 25. By providing the first flow channel 25 to be longer, the position from the inlet 8 to the first outlet 10 can be increased, so as to increase the flow distance of the heat exchange medium in the first flow channel 25, which can play a role in making the heat exchange medium with a higher temperature dissipate heat more fully and evenly.

[0062] In an example, Figure 4 As shown, the heat exchange cavity is provided with a first flow guide 14 to divide the heat exchange cavity into the first flow channel 25 and the second flow channel 26. The first flow guide 14 is provided on the bottom wall of the heat exchange cavity to divide the heat exchange cavity into the first flow channel 25 and the second flow channel 26. That is, the function of the first flow guide 14 is to guide the heat exchange medium entering the heat exchange cavity along a specified route so that it can be fully cooled, and the cooled heat exchange medium is fully diverted to each outlet through the first flow guide 14 to ensure the reasonable distribution of the heat exchange medium.

[0063] like Figure 4 As shown, in this example, the first guide member 14 may be a guide plate, which is disposed in the housing 1 to divide the space in the heat exchange chamber into a plurality of first flow channels 25 and second flow channels 26. The guide plate may be disposed in a curved manner, for example, in an S-shaped arrangement, or in an arc-shaped arrangement, or in combination of multiple structures, etc. Those skilled in the art may determine the configuration according to actual conditions, and no specific limitation is made here.

[0064] In this example, the shell 1 of the heat exchange structure is provided with a heat exchange cavity. The heat exchange cavity is provided with an inlet 8 and a plurality of outlets, and the motor housing 23 is provided with a channel corresponding to each outlet, and the position of each outlet corresponds to the position of the corresponding part to be cooled, so that the length of the channel and the bending section in the shell 1 can be reduced, thereby simplifying the arrangement of the channel in the motor housing 23, reducing the difficulty of processing, and saving production costs.

[0065] Among them, Figure 4 As shown, the third outlet 13 may also be connected to the first flow channel 25 , and part of the heat exchange medium in the first flow channel 25 may flow into the third outlet 13 .

[0066] In an example, Figure 4 As shown, a second flow guide 24 is disposed in the first flow channel 25 , and the second flow guide 24 is located on a side of the first outlet 10 close to the second outlet 11 .

[0067] like Figure 4As shown, a second guide 24 is provided on one side of the first outlet 10 close to the second outlet 11. The second guide 24 can increase the flow distance of the heat exchange medium in the first flow channel 25 to improve the heat exchange effect between the heat exchange medium and the heat conducting medium.

[0068] In an example, Figure 3 and Figure 4 As shown, spoiler columns 9 are provided in the first flow channel 25 and the second flow channel 26 .

[0069] like Figure 3 and Figure 4 As shown, a spoiler column 9 is provided in the heat exchange cavity, which can slow down the flow rate of the heat exchange medium and disperse the heat exchange medium, thereby making the heat exchange medium with a higher temperature dissipate heat more fully and evenly.

[0070] There may be multiple spoiler columns 9, which are arranged at intervals in the heat exchange chamber. The spoiler columns 9 may be cylindrical or prismatic, etc. Those skilled in the art may determine the structure according to actual conditions, and no specific limitation is made here.

[0071] According to another embodiment of the utility model, a motor assembly is provided. The motor assembly includes a motor and a reducer, and the motor heat exchange structure of the above embodiment, wherein the motor heat exchange structure is arranged on the motor housing 23, and the first outlet 10 is arranged close to the reducer side, and the first outlet 10 is used to flow the heat exchange medium to the secondary shaft of the reducer.

[0072] In this example, a water jacket is provided inside the motor housing 23 to match the heat exchange chamber, and the water jacket is used to transport a heat transfer medium. The heat exchange chamber is used to transport a heat transfer medium, and the heat transfer medium refers to a fluid that needs to be heat exchanged. That is, a target fluid that needs to be cooled or heated. The heat transfer medium refers to a fluid used for heat conduction. The heat transfer medium can exchange heat with the heat transfer medium to reduce the temperature of the heat transfer medium.

[0073] For example, the heat exchange medium is lubricating oil, and the temperature of the lubricating oil is reduced after heat exchange through the housing 1. Then it flows out from each outlet and can flow to the main shaft bearing or the secondary shaft bearing 19, or the main shaft and the secondary shaft transmission connection 21. It can not only cool the main shaft bearing or the secondary shaft bearing 19, but also lubricate the main shaft bearing or the secondary shaft bearing 19. The water jacket is nested inside the motor housing 23 and arranged opposite to the heat exchange chamber. The heat transfer medium in the water jacket can be cooling water, and the cooling water can exchange heat with the lubricating oil in the heat exchange chamber to reduce the temperature of the lubricating oil.

[0074] Of course, the types of heat transfer medium and heat exchange medium are not limited to the above embodiments. Heat transfer medium and heat exchange medium include liquid, gas, etc. Those skilled in the art can choose according to actual conditions, and no specific limitation is made here.

[0075] In this example, the shell 1 of the heat exchange structure is arranged on the motor housing 23 of the motor, and the shell 1 is provided with an inlet 8 and a plurality of outlets. The motor housing 23 is provided with a channel corresponding to each outlet, and the position of each outlet corresponds to the position of the corresponding part to be cooled, so that the length of the channel and the bending section in the motor housing 23 can be reduced, thereby simplifying the arrangement of the channel in the motor housing 23, reducing the difficulty of processing, and saving production costs.

[0076] Of course, the heat exchange structure of the present application can also be used to cool or heat the structures of other devices, such as reducers, etc. Those skilled in the art can determine according to actual conditions, and no specific limitation is made here.

[0077] In one example, the housing 1 of the motor heat exchange structure and the motor housing 23 are integrally arranged. The motor has a motor housing 23. The housing 1 of the motor heat exchange structure is integrally formed and arranged on the outer wall of the motor housing 23.

[0078] In one example, the housing 1 is disposed on the outer surface of the motor housing 23, and a water jacket is disposed on the inner surface of the motor housing 23 facing away from the housing 1. That is, the water jacket and the housing 1 are separated by the motor housing 23. A stator assembly is disposed in the motor housing 23, and the stator assembly is located on one side of the water jacket. The water jacket can not only exchange heat with the heat exchange medium in the housing 1, but also take away the heat generated by the stator assembly to cool the stator assembly.

[0079] According to another embodiment of the present application, a vehicle is provided, which includes the motor assembly of the above embodiment.

[0080] In this example, the motor assembly of the vehicle includes the motor heat exchange structure of the above embodiment. The motor heat exchange structure includes a housing 1, the housing 1 defines a heat exchange cavity, and the housing 1 is provided with an inlet 8 and a first outlet 10 connected to the heat exchange cavity, the inlet 8 and the first outlet 10 are both connected to the heat exchange cavity, the first outlet 10 is arranged close to the reducer side, and the first outlet 10 is used to flow the heat exchange medium to the secondary shaft of the reducer. After the heat exchange medium flows out from the first outlet 10, it flows to the reducer through the channel on the motor housing 23 to cool the secondary shaft of the reducer. The first outlet 10 is arranged close to the reducer side, so that the design route of the channel on the motor housing 23 can be optimized to reduce the processing difficulty, and the viscous resistance of the channel to the heat exchange medium can be reduced.

[0081] Of course, the motor assembly can also be used for other devices that require motor drive. Those skilled in the art can determine according to actual conditions, and no specific limitation is made here.

[0082] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0083] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A motor heat exchange structure, characterized in that: include: A shell (1), wherein the shell defines a heat exchange chamber, and the shell (1) is provided with an inlet (8) and a first outlet (10) connected to the heat exchange chamber, the inlet (8) and the first outlet (10) are both connected to the heat exchange chamber, the first outlet is arranged close to the reducer side, and the first outlet is used to flow the heat exchange medium to the secondary shaft of the reducer.

2. The motor heat exchange structure according to claim 1, characterized in that: The shell (1) is also provided with a second outlet (11) connected to the heat exchange chamber, the second outlet (11) is used to flow the heat exchange medium to the reducer side, the second outlet (11) is arranged close to the reducer side, and the first outlet (10) is located between the inlet (8) and the second outlet (11).

3. The motor heat exchange structure according to claim 2, characterized in that: The shell (1) is also provided with a third outlet (13) communicating with the heat exchange chamber, and the third outlet (13) is arranged close to the motor end cover.

4. The motor heat exchange structure according to claim 1, characterized in that: The inlet (8) is arranged close to the reducer side.

5. The motor heat exchange structure according to claim 3, characterized in that: The housing (1) comprises a first side (27), a second side (28), a third side (29) and a fourth side (30) which are connected end to end in sequence, the first side is close to the reducer side, and the first outlet (10) is located on the first side (27).

6. The motor heat exchange structure according to claim 5, characterized in that: The second side (28) is close to the motor end cover, the inlet (8) is located at the connection between the first side (27) and the fourth side, the second outlet (11) is located at the connection between the first side (27) and the second side (28), and the third outlet (13) is located at the connection between the second side (28) and the third side.

7. The motor heat exchange structure according to claim 3, characterized in that: A first flow channel (25) is formed in the heat exchange cavity. The first flow channel (25) is suitable for circulating the heat exchange medium. One end of the first flow channel (25) is connected to the inlet (8), and the other end is connected to the second outlet (11). The first outlet (10) is located on a side of the second outlet (11) close to the inlet (8).

8. The motor heat exchange structure according to claim 7, characterized in that: A second flow channel (26) is also formed in the heat exchange chamber. One end of the second flow channel (26) is connected to the inlet (8), and the other end is connected to the third outlet (13). The first flow channel (25) and the second flow channel (26) are arranged in parallel.

9. The motor heat exchange structure according to claim 8, characterized in that: A first flow guide (14) is provided in the heat exchange cavity to divide the heat exchange cavity into the first flow channel (25) and the second flow channel (26).

10. A motor assembly, characterized in that: A motor heat exchange structure comprising a motor and a reducer as claimed in any one of claims 1 to 9, wherein the motor heat exchange structure is arranged on the motor housing, and a first outlet is arranged close to the reducer side, and the first outlet is used to flow the heat exchange medium to the secondary shaft of the reducer.

11. The motor assembly according to claim 10, characterized in that: The shell of the motor heat exchange structure and the motor casing are integrally arranged.

12. A vehicle, characterized in that: Comprising the motor assembly as claimed in claim 10 or 11.

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