Cooling shell

Abstract

The utility model discloses a cooling shell which comprises the following components: a first shell which comprises a first side and a second side which are oppositely arranged along a first direction, the first shell is provided with a liquid inlet part and a liquid outlet part, the liquid inlet part is positioned on the first side, and the liquid outlet part is positioned on the second side; the first spiral channel and the second spiral channel are both arranged on the outer wall of the first shell, the first spiral channel and the second spiral channel are alternately arranged in a spaced mode, and the first spiral channel and the second spiral channel are communicated between the same liquid inlet part and the same liquid outlet part; the first spiral channel and the second spiral channel respectively comprise inclined channels, each inclined channel extends towards the second side in the second direction, and the second direction intersects with the first direction. According to the utility model, the cooling loop is shortened by adopting the double spiral channels, the flow resistance is reduced, the cooling effect is effectively improved, the inclined channel in each spiral channel can shorten the cooling loop again, the heat exchange area is increased, and the cooling effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor cooling, and particularly relates to a cooling housing. Background Art

[0002] The motor is an important component of new energy vehicles. With the development of the new energy vehicle industry, the market has higher and higher requirements for the power density of motors and higher and higher requirements for motor cooling. At present, water cooling is often used for heat dissipation of new energy vehicle motors. In the field of new energy vehicles, this cooling method has good heat dissipation performance. Usually, the water channels are designed to be straight or single spiral. Multiple straight water channels usually extend along the axial direction of the motor housing respectively, and the cooling medium in each straight water channel flows from one end of the motor housing to the other end, with a large flow resistance; the single spiral water channel can reduce the flow resistance to a certain extent, but the cooling circuit of the single spiral is too long, which will reduce the cooling effect. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the technical problem that the water channel design of the existing motor housing cannot balance the flow resistance and the cooling effect. The utility model provides a cooling housing, which adopts a double spiral channel to shorten the cooling circuit and reduce the flow resistance, effectively improving the cooling effect. Moreover, the inclined channels in each spiral channel can shorten the cooling circuit again and increase the heat exchange area, further improving the cooling effect.

[0004] To solve the above technical problems, an embodiment of the utility model discloses a cooling housing, including:

[0005] A first housing, including a first side and a second side arranged opposite to each other in a first direction. The first housing is provided with a liquid inlet part and a liquid outlet part. The liquid inlet part is located on the first side, and the liquid outlet part is located on the second side;

[0006] A first spiral channel and a second spiral channel, both arranged on the outer wall of the first housing. The first spiral channel and the second spiral channel are spaced apart from each other and arranged alternately, and are respectively communicated between the same liquid inlet part and the same liquid outlet part; the first spiral channel and the second spiral channel respectively include inclined channels, and each inclined channel extends in a direction towards the second side along a second direction, and the second direction intersects with the first direction.

[0007] By adopting the above technical solution, a compact double spiral channel (the first spiral channel and the second spiral channel) is arranged on the outer wall of the first housing. On the one hand, compared with the traditional straight water channel, the spiral structure design of the first spiral channel and the second spiral channel in the embodiment of the present application can reduce the flow resistance and reduce the cooling loss.

[0008] On the other hand, compared with the traditional single-spiral water channel, the liquid inlet part and the liquid outlet part are respectively located on both sides of the first housing instead of the same side, which can provide a design basis for reducing the cooling path of the double-spiral channel. That is, each spiral channel does not need to wind from the first side to the second side and then wind back to the first side again. Moreover, the cooling medium can flow in the first spiral channel and the second spiral channel respectively to take away the heat of the housing. However, if the cooling medium only flows in a single-spiral water channel, if the single-spiral water channel is short (i.e., not arranged tightly enough on the outer wall of the housing), the cooling effect is not good. If the single-spiral water channel is long (i.e., arranged more tightly on the outer wall of the housing), the temperature of the cooling medium in the latter part of the single-spiral water channel rises higher, affecting the cooling effect. Therefore, the cooling paths of the first spiral channel and the second spiral channel in the embodiment of the present application are relatively short, which can reduce the residence time of the cooling medium in the first spiral channel and the second spiral channel, effectively improving the cooling effect.

[0009] On the other hand, the liquid outlet part is provided on the second side of the first housing, and the inclined channel in the embodiment of the present application extends in the direction towards the second side along the second direction. That is to say, the inclined channel can further shorten the overall path of the first spiral channel, and at the same time, can further shorten the overall path of the second spiral channel, further improving the cooling effect. At the same time, compared with other parts of the first spiral channel (or, compared with other parts of the second spiral channel), the inclined channel can provide a larger heat exchange area, further improving the cooling effect.

[0010] According to another specific embodiment of the present invention, the inclined channel includes at least one first inclined channel, and the first spiral channel includes a first channel, the at least one first inclined channel, and a second channel; the first channel is communicated with the liquid inlet part, the second channel is communicated with the liquid outlet part, the at least one first inclined channel is communicated between the first channel and the second channel, and each first inclined channel is arranged at an obtuse angle with the first channel.

[0011] According to another specific embodiment of the present invention, the first spiral channel includes two first inclined channels and a third channel. One end of one first inclined channel is communicated with the first channel, the other end of the one first inclined channel is communicated with one end of the third channel, the other end of the third channel is communicated with one end of the other first inclined channel, and the other end of the other first inclined channel is communicated with the second channel.

[0012] According to another specific embodiment of the present utility model, the inclined channel includes at least one second inclined channel, and the second spiral channel includes a fourth channel, the at least one second inclined channel, and a fifth channel; the fourth channel communicates with the liquid inlet part, the fifth channel communicates with the liquid outlet part, the at least one second inclined channel is communicated between the fourth channel and the fifth channel, and each second inclined channel is arranged at an obtuse angle with the fourth channel, and the at least one second inclined channel and the at least one first inclined channel are spaced apart from each other.

[0013] According to another specific embodiment of the present utility model, along the first direction, the fourth channel is spaced apart from the first channel, the second channel is spaced apart from a part of the fifth channel, and the second channel and another part of the fifth channel are located on both sides of the liquid outlet part.

[0014] According to another specific embodiment of the present utility model, the cooling housing further includes a rotary channel, one end of the rotary channel is communicated with the part of the fifth channel, and the other end of the rotary channel is communicated with the other part of the fifth channel.

[0015] According to another specific embodiment of the present utility model, the first spiral channel and the second spiral channel are respectively provided with a plurality of flow guiding ribs, and the extending direction of the flow guiding ribs is the same as the flowing direction of the cooling medium in the corresponding first spiral channel and second spiral channel.

[0016] By adopting the above technical solution, a plurality of flow guiding ribs are respectively arranged in the first spiral channel and the second spiral channel, which can enhance the guiding effect on the cooling medium, and at the same time can also increase the heat exchange area of the first spiral channel and the second spiral channel, effectively improving the cooling performance of the first spiral channel and the second spiral channel.

[0017] According to another specific embodiment of the present utility model, the liquid inlet part includes a shunt cavity, the first spiral channel is communicated with a part of the shunt cavity, and the second spiral channel is communicated with another part of the shunt cavity.

[0018] By adopting the above technical solution, the liquid inlet part is provided with a shunt cavity, and when the cooling medium flows into the shunt cavity, the pressure drop can be reduced and the cooling effect can be enhanced.

[0019] According to another specific embodiment of the present utility model, the shunt cavity is provided with a plurality of guiding partitions.

[0020] By adopting the above technical solution, a plurality of partitions are arranged in the shunt cavity, which can guide the flowing trend of the cooling medium and improve the guiding ability for the cooling medium.

[0021] According to another specific embodiment of the present utility model, the cooling housing further includes a second housing, the second housing is disposed around the first housing, an inner wall of the second housing and the first spiral channel form a closed first cooling channel, and an inner wall of the second housing and the second spiral channel form a closed second cooling channel; the second housing is provided with a liquid inlet hole and a liquid outlet hole, the liquid inlet hole corresponds to the liquid inlet part of the first housing, and the liquid outlet hole corresponds to the liquid outlet part of the first housing. Description of the Drawings

[0022] Figure 1 Showing a perspective view of the cooling housing according to an embodiment of the present utility model Figure 1 ; wherein, the second housing and the liquid inlet hole are shown in the figure.

[0023] Figure 2 Showing a perspective view of the cooling housing according to an embodiment of the present utility model Figure 2 ; wherein, the second housing and the liquid outlet hole are shown in the figure.

[0024] Figure 3 Showing a cross-sectional view of the cooling housing according to an embodiment of the present utility model; wherein, the first cooling channel and the second cooling channel are shown in the figure.

[0025] Figure 4 Showing a perspective view of the first housing in the cooling housing according to an embodiment of the present utility model Figure 1 ; wherein, the first spiral channel and the second spiral channel are shown in the figure.

[0026] Figure 5 Showing a perspective view of the first housing in the cooling housing according to an embodiment of the present utility model Figure 2 ; wherein, what is shown in the figure is Figure 4 the perspective view after the first housing in

[0027] Figure 6 Showing a perspective view of the first housing in the cooling housing according to an embodiment of the present utility model Figure 3 ; wherein, what is shown in the figure is Figure 5 the perspective view after the first housing in

[0028] Figure 7 Showing a perspective view of the first housing in the cooling housing according to an embodiment of the present utility model Figure 4 ; wherein, what is shown in the figure is Figure 6 the perspective view after the first housing in

[0029] Figure 8 Showing a partial enlarged view of the liquid inlet part in the cooling housing according to an embodiment of the present utility model. Detailed Embodiment

[0030] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Although the description of the present utility model will be introduced in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this implementation manner. On the contrary, the purpose of introducing the utility model in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0031] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0033] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0034] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0035] To make the purpose, technical solutions, and advantages of the present utility model clearer, the implementation manners of the present utility model will be further described in detail below with reference to the drawings.

[0036] Referring to Figures 1 to 4 , the embodiment of the present application provides a cooling housing, Figure 1 , Figure 2Exemplarily shown respectively are perspective views of a cooling housing, wherein the cooling housing includes a first housing 1 and a second housing 7; Figure 3 Exemplarily shown is a cross-sectional view of the cooling housing, Figure 4 Exemplarily shown is a perspective view of the first housing 1.

[0037] As Figure 1 and Figure 2 shown, the second housing 7 is disposed around the first housing 1. It can be seen that the second housing 7 is provided with a liquid inlet hole 71 (as Figure 1 shown) and a liquid outlet hole 72 (as Figure 2 shown).

[0038] As Figure 3 shown, a first cooling channel 20 and a second cooling channel 30 are provided between the first housing 1 and the second housing 7. That is, in the embodiment of the present application, a first spiral channel and a second spiral channel to be described later are opened on the outer wall of the first housing 1. The first spiral channel and the inner wall of the second housing 7 form a closed first cooling channel 20, and the second spiral channel and the inner wall of the second housing 7 form a closed second cooling channel 30. It should be noted that the above "closed" means that the cooling medium in the first cooling channel and the second cooling channel will not overflow from the cooling housing, while the two ends of the first cooling channel and the second cooling channel for liquid inlet and outlet are not closed.

[0039] As Figure 4 shown, it can be seen that a first spiral channel 2 and a second spiral channel 3 are opened on the outer wall of the first housing 1. In addition, the first housing 1 is cylindrical in Figure 4 , but the embodiment of the present application does not limit this. For example, the first housing 1 can also be set in a rectangular shape or the like. In addition, it should be noted that the embodiment of the present application takes the cooling housing as an example of a motor housing for description, but the cooling housing can also be applied to cooling solutions for electronic components such as inverters.

[0040] Referring to Figure 4 and Figure 6 , the first housing 1 includes a first side 11 and a second side 12 that are oppositely arranged along a first direction (such as the Z direction shown in Figure 4 and Figure 6 ). The first side 11 is the side pointed by the Z2 direction in Figure 4 , and the second side 12 is the side pointed by the Z1 direction in Figure 4 . The first housing 1 is provided with a liquid inlet part 13 for introducing a cooling medium and a liquid outlet part 14 for allowing the cooling medium to flow out. As Figure 4 shown, the liquid inlet part 13 is located on the first side 11, and as Figure 6 shown, the liquid outlet part 14 is located on the second side 12.

[0041] Referring to Figure 1 andFigure 4 , the liquid inlet part 13 of the first housing 1 corresponds to the liquid inlet hole 71 of the second housing 7. Refer to Figure 2 and Figure 6 , the liquid outlet part 14 of the first housing 1 corresponds to the liquid outlet hole 72 of the second housing 7.

[0042] Refer to Figures 1 to 6 , exemplarily, pipelines (not shown in the figure) are respectively connected to the liquid inlet hole 71 and the liquid outlet hole 72. A water pump (not shown in the figure) can be used to introduce the cooling medium into the liquid inlet hole 71 so that it flows into the corresponding liquid inlet part 13. Then, the cooling medium flows in the first cooling channel 20 and the second cooling channel 30 to cool the electronic components (such as the motor rotor) assembled inside the cooling housing. Finally, the cooling medium in the first cooling channel 20 and the cooling medium in the second cooling channel 30 flow out of the first housing 1 from the same liquid outlet part 14, and then are led out of the motor by the pipeline provided at the liquid outlet hole 72 of the second housing 7.

[0043] Next, the first spiral channel 2 corresponding to the first cooling channel 20 and the second spiral channel 3 corresponding to the second cooling channel 30 will be described in detail in this article.

[0044] Refer to Figures 4 to 7 , the first housing of the embodiment of the present application is provided with a first spiral channel 2 and a second spiral channel 3. As described above, both are opened on the outer wall of the first housing 1. It can be seen that the first spiral channel 2 and the second spiral channel 3 are spaced apart from each other and arranged alternately. The head end of the first spiral channel 2 communicates with the liquid inlet part 13 (as Figure 4 shown), the tail end of the first spiral channel 2 communicates with the liquid outlet part 14 (as Figure 6 shown). At the same time, the head end of the second spiral channel 3 communicates with the same liquid inlet part 13, and the tail end of the second spiral channel 3 communicates with the same liquid outlet part 14.

[0045] Refer to Figure 4 , it can be seen that the first spiral channel 2 and the second spiral channel 3 respectively include inclined channels. Each inclined channel extends in the direction towards the second side 12 along the second direction (such as the A direction shown in Figure 4 ), and the second direction intersects with the first direction (such as the Z direction shown in Figure 4 ). That is to say, each inclined channel extends towards the liquid outlet part at a certain inclination angle (for example, 40°), so as to provide a certain flow gradient for the cooling medium flowing into the inclined channel, increase the heat exchange area, and improve the cooling effect; at the same time, the inclined channel can also shorten the overall path of the first spiral channel and the second spiral channel respectively, further improving the cooling effect.

[0046] Refer to Figures 4 to 7 , it should be noted that Figures 5 to 7In order Figure 4 A stereogram during clockwise rotation along the R direction. In a possible implementation, the inclined channel includes at least one first inclined channel 22. In the embodiment of the present application, the inclined channel includes two first inclined channels 22, but the embodiment of the present application does not limit the number. For example, the number may be one, three, four, etc. The first inclined channel 22 is arranged in the first spiral channel 2.

[0047] That is, the first spiral channel 2 includes two first inclined channels 22 , a first channel 21 , and a second channel 23 .

[0048] The first channel 21 of the first spiral channel 2 is connected to the liquid inlet 13 located on the second side 12 (eg Figure 4 The second channel 23 of the first spiral channel 2 is connected to the liquid outlet 14 located on the first side 11 (as shown in FIG. Figure 6 As shown), the two first inclined channels 22 are connected between the first channel 21 and the second channel 23 (as shown in sequence). Figure 4 , Figure 5 , Figure 7 As shown), each first inclined channel 22 is arranged at a first obtuse angle α with the first channel 21, such as Figure 4 As shown, the first obtuse angle α is 140°, but the embodiment of the present application does not limit the value of the first obtuse angle α, for example, it can also be 120°, 135°, 161°, etc.

[0049] See also Figures 4 to 7 In a possible implementation, specifically, when the number of the first inclined channels 22 in the first spiral channel 2 is two, the two first inclined channels 22 are connected via the third channel 24. Figure 7 One end of the first inclined channel 22) close to the Z2 direction (i.e. Figure 7 The end indicated by the direction a in the figure) is connected to the first channel 21, and the other end of one of the first inclined channels 22 (i.e. Figure 7 The end indicated by the direction b in the figure) is connected to one end of the third channel 24, and the other end of the third channel 24 (i.e. Figure 7 The end indicated by the c direction in the middle) and the other first inclined channel 22 (i.e. Figure 7 One end of the first inclined channel 22 close to the Z1 direction is connected, and the other end of the other first inclined channel 22 is connected to the second channel 23 (such as Figure 5 shown).

[0050] See also Figures 4 to 7, in a possible implementation, the inclined channel includes at least one second inclined channel 32. In the embodiment of the present application, the inclined channel includes one second inclined channel 32, but the embodiment of the present application does not limit the quantity. For example, the quantity can also be two, three, four, etc. The second inclined channel 32 is disposed in the second spiral channel 3.

[0051] That is to say, the second spiral channel 3 includes one second inclined channel 32, a fourth channel 31, and a fifth channel 33.

[0052] The fourth channel 31 of the second spiral channel 3 communicates with the liquid inlet part 13 located on the second side 12 (as Figure 4 shown). Exemplarily, along the first direction (such as the Z direction shown in Figure 4 ), the fourth channel 31 is spaced from the above-mentioned first channel 21 of the first spiral channel 2.

[0053] The fifth channel 33 of the second spiral channel 3 communicates with the liquid outlet part 14 located on the first side 11 (as Figure 6 shown), and one second inclined channel 32 communicates between the fourth channel 31 and the fifth channel 33 (successively as Figure 4 , Figure 5 , Figure 7 shown). Each second inclined channel 32 is disposed at a second acute angle θ with the fourth channel 31. As Figure 4 shown, the second obtuse angle θ is 140°, but it can also be 120°, 135°, 161°, etc.; in addition, the value of the second obtuse angle θ can be the same as or different from the above-mentioned first obtuse angle α. The embodiment of the present application does not limit the value of the second obtuse angle θ.

[0054] As Figure 4 shown, the second inclined channel 32 in the second spiral channel 3 is located between the above two first inclined channels 22, and the three are spaced from each other.

[0055] Referring to Figure 6 and Figure 7 and combining with Figure 4 , in a possible implementation, the fifth channel of the second spiral channel 3 includes a connected lower part 331 and an upper part 332.

[0056] The upper part 332 communicates with the liquid outlet part 14 of the cooling housing. It can be clearly seen from Figure 6 that the upper part 332 and the above-mentioned second channel 23 of the first spiral channel 2 are respectively located on both sides of the liquid outlet part 14. That is to say, the cooling medium in the upper part 332 and the cooling medium in the second channel 23 flow towards the liquid outlet part 14 in opposite directions. The lower part 331 is spaced from the second channel 23 of the first spiral channel 2 in the first direction (such as the Z direction shown in Figure 4 ).

[0057] Refer to Figure 4 and Figure 7 In a possible implementation, the cooling housing further includes a rotary channel 4. Exemplarily, the rotary channel 4 is in a semi-circular arc shape, but the shape of the rotary channel 4 is not limited in the embodiments of the present application. It can be seen that one end of the rotary channel 4 communicates with the lower part 331 of the fifth channel 33, and the other end of the rotary channel 4 communicates with the upper part 332 of the fifth channel 33.

[0058] Refer to Figure 6 and Figure 7 In the above-mentioned first channel 21, second channel 23, third channel 24, fourth channel 31, and fifth channel 33 of the embodiments of the present application, they all extend circumferentially along the outer wall of the first housing (such as the W direction shown in Figure 6 ).

[0059] Refer to Figure 8 and in combination with Figure 4 In a possible implementation, the first spiral channel 2 is provided with three guide ribs 5, and the extending direction of each guide rib 5 is the same as the flowing direction of the cooling medium in the first spiral channel 2. The second spiral channel 3 is also correspondingly provided with three guide ribs 5, and the extending direction of each guide rib 5 is the same as the flowing direction of the cooling medium in the second spiral channel 3. The number of the guide ribs 5 in the first spiral channel 2 and the second spiral channel 3 is not limited in the embodiments of the present application.

[0060] By adopting the above technical solutions, multiple guide ribs 5 are respectively arranged in the first spiral channel 2 and the second spiral channel 3, which can enhance the guiding effect on the cooling medium, and at the same time can also increase the heat exchange area of the first spiral channel 2 and the second spiral channel 3, effectively improving the cooling performance of the first spiral channel 2 and the second spiral channel 3.

[0061] Continue to refer to Figure 8 and in combination with Figure 4 In a possible implementation, the liquid inlet part 13 includes a flow splitting cavity 131. It can be seen that the flow splitting cavity 131 includes a first part 1311 and a second part 1312. The first spiral channel 2 communicates with the first part 1311 of the flow splitting cavity 131, and the second spiral channel 3 communicates with the second part 1312 of the flow splitting cavity 131. The cooling medium will first flow into the overlapping part of the first part 1311 and the second part 1312 (as shown by the dashed box S in Figure 8 ), and then be split into the first part 1311 and the second part 1312.

[0062] Continue to refer to Figure 8 and in combination with Figure 4, in a possible implementation, the flow diversion cavity 131 is provided with a plurality of guiding partition plates 6. It can be seen that the guiding partition plates 6 are inclined. With this technical solution, the guiding partition plates 6 can guide the flow trend of the cooling medium and improve the guiding ability of the cooling medium.

[0063] Although the present invention has been illustrated and described by referring to some preferred embodiments of the present invention, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A cooling housing, characterized in that, Comprising: A first housing, including a first side and a second side oppositely arranged in a first direction, the first housing being provided with a liquid inlet part and a liquid outlet part, the liquid inlet part being located on the first side, and the liquid outlet part being located on the second side; A first spiral channel and a second spiral channel, both arranged on the outer wall of the first housing, the first spiral channel and the second spiral channel being spaced apart and alternately arranged, and respectively communicating between the same liquid inlet part and the same liquid outlet part; the first spiral channel and the second spiral channel respectively include inclined channels, and each inclined channel extends in a direction towards the second side along a second direction, and the second direction intersects with the first direction.

2. The cooling housing according to claim 1, characterized in that, The inclined channel includes at least one first inclined channel, the first spiral channel includes a first channel, the at least one first inclined channel and a second channel; the first channel communicates with the liquid inlet part, the second channel communicates with the liquid outlet part, the at least one first inclined channel communicates between the first channel and the second channel, and each first inclined channel is arranged at an obtuse angle with the first channel.

3. The cooling housing according to claim 2, characterized in that, The first spiral channel includes two first inclined channels and a third channel, one end of one first inclined channel communicates with the first channel, the other end of the one first inclined channel communicates with one end of the third channel, the other end of the third channel communicates with one end of the other first inclined channel, and the other end of the other first inclined channel communicates with the second channel.

4. The cooling housing according to claim 2 or 3, characterized in that, The inclined channel includes at least one second inclined channel, the second spiral channel includes a fourth channel, the at least one second inclined channel and a fifth channel; the fourth channel communicates with the liquid inlet part, the fifth channel communicates with the liquid outlet part, the at least one second inclined channel communicates between the fourth channel and the fifth channel, each second inclined channel is arranged at an obtuse angle with the fourth channel, and the at least one second inclined channel and the at least one first inclined channel are spaced apart.

5. The cooling housing according to claim 4, characterized in that, Along the first direction, the fourth channel is spaced apart from the first channel, a part of the second channel is spaced apart from the fifth channel, and the other part of the second channel and the fifth channel are located on both sides of the liquid outlet part.

6. The cooling housing according to claim 5, characterized in that, The cooling housing further includes a rotary channel, one end of the rotary channel communicates with the part of the fifth channel, and the other end of the rotary channel communicates with the other part of the fifth channel.

7. The cooling housing according to claim 1, characterized in that, The first spiral channel and the second spiral channel are respectively provided with a plurality of flow guiding ribs, and the extending direction of the flow guiding ribs is the same as the flowing direction of the cooling medium in the corresponding first spiral channel and second spiral channel.

8. The cooling housing according to claim 1, characterized in that, The liquid inlet part includes a shunt cavity, the first spiral channel communicates with a part of the shunt cavity, and the second spiral channel communicates with another part of the shunt cavity.

9. The cooling housing according to claim 8, characterized in that, The shunt cavity is provided with a plurality of guiding partitions.

10. The cooling housing according to claim 1, characterized in that, The cooling housing further includes a second housing, which is disposed around the first housing. The inner wall of the second housing and the first spiral channel form a closed first cooling channel, and the inner wall of the second housing and the second spiral channel form a closed second cooling channel. The second housing is provided with a liquid inlet hole and a liquid outlet hole. The liquid inlet hole corresponds to the liquid inlet part of the first housing, and the liquid outlet hole corresponds to the liquid outlet part of the first housing.

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