Compression device and thermal management integrated assembly

Abstract

The compression device comprises a shell, an electric connection assembly, a protruding structure and a compressor core, the shell is provided with a containing cavity, the compressor core is located in the containing cavity, the containing cavity comprises an oil cavity, the shell comprises a first wall part, the first wall part makes contact with the oil cavity, and the oil cavity is located on the side, facing the compressor core, of the first wall part; the protruding structure is connected with the first wall part, the protruding structure extends from the first wall part to the compressor core, the protruding structure is provided with a first hole, and the electric connection assembly is at least partially located in the first hole. The invention further discloses a heat management integrated assembly. The protruding structure extends from the first wall part to the compressor core, the protruding structure is provided with the first hole, the electric connection assembly is at least partially located in the first hole, the protruding structure can isolate the electric connection assembly from oil in the shell oil cavity to a certain degree, and the negative influence of the oil on the electric connection assembly is reduced; and the compression device has better safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal management, in particular to a compression device and a thermal management integrated assembly. BACKGROUND

[0002] The compression device of the thermal management integrated assembly comprises a shell and an electrical connection assembly, an oil cavity of the shell contains oil liquid used for lubrication, heat dissipation and the like, a first wall portion of the shell is in contact with the oil cavity, when the electrical connection assembly is located at the first wall portion, the oil liquid is easy to have a negative impact on the insulation and the like of the electrical connection assembly, resulting in poor safety of the compression device and the thermal management integrated assembly. SUMMARY

[0003] The present application aims to provide a compression device and a thermal management integrated assembly with good safety.

[0004] In one aspect, the embodiments of the present application provide a compression device, comprising: a shell, an electrical connection assembly, a protruding structure and a compressor core, the shell has a containing cavity, the compressor core is located in the containing cavity, the containing cavity comprises an oil cavity, the shell comprises a first wall portion, the first wall portion is in contact with the oil cavity, the oil cavity is located on a side of the first wall portion facing the compressor core, the protruding structure is connected with the first wall portion, the protruding structure extends from the first wall portion towards the compressor core, the protruding structure has a first hole, the electrical connection assembly is at least partially located in the first hole, and the electrical connection assembly is connected with the protruding structure.

[0005] The protruding structure extends from the first wall portion towards the compressor core, the protruding structure can isolate the oil liquid of the electrical connection assembly and the oil cavity of the shell to a certain extent, reduce the negative impact of the oil liquid on the electrical connection assembly, and make the compression device have good safety.

[0006] In another aspect, the embodiments of the present application also provide a thermal management integrated assembly, comprising: a compression device and a flow channel piece, the compression device and the flow channel piece are sealingly connected, the compression device comprises a shell, an electrical connection assembly, a protruding structure and a compressor core, the shell has a containing cavity, the compressor core is located in the containing cavity, the containing cavity comprises an oil cavity, the shell comprises a first wall portion, the first wall portion is in contact with the oil cavity, the oil cavity is located on a side of the first wall portion facing the compressor core, the protruding structure is connected with the first wall portion, the protruding structure extends from the first wall portion towards the compressor core, the protruding structure has a first hole, the electrical connection assembly is at least partially located in the first hole, the extension direction of the first hole is parallel to the extension direction of the protruding structure, and the electrical connection assembly is connected with the protruding structure.

[0007] The protruding structure extends from the first wall portion towards the compressor core, the protruding structure can isolate the oil liquid of the electrical connection assembly and the oil cavity of the shell to a certain extent, reduce the negative impact of the oil liquid on the electrical connection assembly, and make the thermal management integrated assembly have good safety. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a perspective view of a thermal management integrated assembly of the present application;

[0009] Figure 2 is a perspective view of a compression device of the present application;

[0010] Figure 3 is a cross-sectional view of a compression device of the present application;

[0011] Figure 4 is a mating view of an electrical connector and a protrusion of a compression device of the present application;

[0012] Figure 5 is an exploded view of a compression device of the present application;

[0013] Figure 6 is a bottom view of a compression device of the present application;

[0014] Figure 7 is a bottom view of an alternative embodiment of a compression device of the present application. DETAILED DESCRIPTION

[0015] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. The following description is not limited to the exemplary embodiments, but rather, is applicable to any apparatus and method within the scope of the present application. Accordingly, the exemplary embodiments are merely described below to explain the working of the present application.

[0016] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the description of the embodiments and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0017] It should be understood that the use of "first", "second", and "third" words in the present application specification and claims do not indicate any order, quantity or importance, but only distinguish different components. Similarly, "one" or "a" and similar words do not indicate a quantity limit, but indicate the existence of at least one; "multiple" indicates a quantity of two or more. Unless otherwise indicated, "front", "rear", "lower" and / or "upper" and similar words are only for convenience of description, and are not limited to a position or a spatial orientation. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects.

[0018] The compression device and the heat management integrated assembly of the example embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. The features in the following embodiments and implementation manners can be supplemented or combined with each other without conflict.

[0019] According to one specific embodiment of the compression device and the heat management integrated assembly of the present application, as shown in Figure 1 The heat management integrated assembly includes a compression device 110 and a flow passage piece 200, the compression device 110 and the flow passage piece 200 are sealingly connected, and the compression device 110 can compress the working medium with relatively low temperature and low pressure to form working medium with relatively high temperature and high pressure. The heat management integrated assembly further includes a heat management component 300, which can be a heat exchanger or other components, and the heat management component 300 and the flow passage piece 200 are sealingly connected. In a specific working mode of the heat management integrated assembly, the accommodation cavity 11 of the compression device 110 and the accommodation cavity 11 of the heat management component 300 are in communication, so that the heat management integrated assembly can realize the function of heat exchange and the like.

[0020] As shown in Figures 2 to 4As shown, the compression device 110 includes a housing 1, an electrical connection assembly 2, and a compressor core 5. The housing 1 has a housing chamber 11, and the compressor core 5 is located in the housing chamber 11 of the housing 1. The housing chamber 11 includes an oil chamber 111. The housing 1 includes a first wall portion 12. The first wall portion 12 is in contact with the oil chamber 111. The oil chamber 111 is located on the side of the first wall portion 12 facing the compressor core 5. The compression device 110 contains oil for lubrication, heat dissipation, etc., and the oil is collected in the oil chamber 111. When the electrical connection assembly 2 is located in the first wall portion 12, the oil may penetrate into the position where the electrical connection assembly 2 is located and contact the electrical connection assembly 2, which may easily cause the electrical connection assembly 2 to short-circuit, poor contact, failure, and even cause serious consequences such as sparks, combustion, and explosion. Especially when the compression device 110 is used for air conditioning, the compression device 110 is used to compress relatively low-temperature and low-pressure refrigerant to form relatively high-temperature and high-pressure refrigerant. The local temperature and pressure of the accommodating chamber 11 are high and the refrigerant is usually flammable and explosive. The negative impact of the oil on the insulation of the electrical connection component 2 and other aspects can easily lead to serious accidents.

[0021] like Figures 2 to 4 As shown, in this embodiment, the compression device 110 includes a protruding structure 3 connected to the first wall portion 12 and extending from the first wall portion 12 toward the compressor core 5. The protruding structure 3 has a first hole 31, and the electrical connection assembly 2 is at least partially located in the first hole 31. When the electrical connection assembly 2 is located in the first wall portion, the protruding structure 3 can isolate the electrical connection assembly 2 from the oil in the oil chamber 111 of the housing 1 to a certain extent, thereby reducing the negative impact of the oil on the insulation properties of the electrical connection assembly 2 and improving the safety of the compression device 110 and the thermal management integrated assembly.

[0022] In this embodiment, the first wall portion 12 is located at the lower end of the housing 1 along the direction of gravity. Figure 4 In the direction indicated by G, the thermal management integrated assembly and / or compression device 110 is applied to a vehicle, and the lower end of the shell 1 along the direction of gravity refers to the lower end of the shell 1 along the direction of gravity after the thermal management integrated assembly and / or compression device 110 is installed on the vehicle. When the thermal management integrated assembly and / or compression device 110 is applied to other scenarios, the lower end of the shell 1 along the direction of gravity refers to the lower end of the shell 1 along the direction of gravity when the thermal management integrated assembly and / or compression device 110 and other corresponding components are installed and can work normally. It should be pointed out that when the thermal management integrated assembly and / or compression device 110 has different postures, as long as in any posture, the protruding structure 3 of the compression device 110 is located at the lower end of the shell 1 along the direction of gravity, and the electrical connection assembly 2 is at least partially located in the first hole 31 of the protruding structure 3, so that the protruding structure 3 can isolate the electrical connection assembly 2 and the oil in the accommodating chamber 11 of the shell 1 to a certain extent, the technical solution and its products are all within the scope of protection of this application.

[0023] like Figure 4 As shown, in this embodiment, the first hole 31 passes through between the end of the protruding structure 3 facing away from the compressor core 5 and the end of the protruding structure 3 facing the compressor core 5, and the first wall portion 12 includes a first end face 121, and the first end face 121 is the end face of the first wall portion 12 facing the compressor core 5. The protruding structure 3 includes a second end face 32, and the second end face 32 is the end face of the protruding structure 3 facing the compressor core 5. The distance between the first end face 121 and the second end face 32 is L, and L is greater than or equal to 10 mm. When the compression device 110 is in different working states or a stationary state, the depth of the oil in the oil chamber 111 is generally less than 10 mm. L being greater than or equal to 10 mm can improve the reliability of the protruding structure 3 isolating the oil in the oil chamber 111 of the electrical connection component 2 and the housing 1, thereby reducing the negative impact of the oil on the electrical connection component 2.

[0024] like Figure 3 and Figure 6As shown, in the embodiment, the compression device 110 comprises a compressor component 4, the compressor component 4 is located in the accommodating cavity 11, the compressor component 4 can be a compression mechanism (such as a static scroll and a dynamic scroll, etc.), a driving mechanism (such as a motor, etc.), an oil pump, etc. component, that is, the compressor component 4 can comprise at least part of the compressor core 5, or can be an additional component of the compressor core 5. The shell 1 comprises a second wall portion 13, the second wall portion 13 surrounds the circumferential side of the compressor component 4, the second wall portion 13 is a cylindrical structure, the axis of the compressor component 4 and the axis of the second wall portion 13 are substantially coincident, the cylindrical structure of the second wall portion 13 and the structure of the compressor component 4 are matched and simple in structure, which is convenient for manufacturing. The axis of the second wall portion 13 and the flow channel of the flow channel member 200 are parallel, and the second wall portion 13 and the flow channel member 200 are integrally extruded. The compression device 110 is vertically installed, that is, the axis of the second wall portion 13 extends along the direction of gravity, and the first wall portion 12 is located at the lower end of the second wall portion 13 in the axial direction and is sealingly connected with the second wall portion 13. The electrical connection assembly 2 comprises an electrical connection member 21, the electrical connection member 21 is a long strip structure, and the electrical connection member 21 is electrically connected with the compressor component 4. A first plane 101 is defined, the first plane 101 is perpendicular to the axis of the second wall portion 13, the projection of the electrical connection member 21 on the first plane 101 is a first projection, the projection of the compressor component 4 on the first plane 101 is a second projection, and the projection of the second wall portion 13 on the first plane 101 is a third projection. The first projection is located between the second projection and the third projection, the electrical connection member 21 has a larger size in the axial direction of the second wall portion 13 and a smaller size in the radial direction of the first wall portion 12, which can reduce the size of the compression device 110 in the axial direction of the second wall portion 13 and improve the space utilization of the accommodating cavity 11 of the shell 1. The number of electrical connection members 21 is at least two, the at least two electrical connection members 21 are arranged in a line, and the arrangement direction of the at least two electrical connection members 21 is perpendicular to the radial direction of the first wall portion 12, which can reduce the size of the compression device 110 in the radial direction of the first wall portion 12 and further improve the space utilization of the accommodating cavity 11 of the shell 1.

[0025] As Figure 7As shown, as the first alternative embodiment of the electrical connection 21, the number of the electrical connection 21 is at least three, the electrical connection 21 comprises a first electrical connection 211, a second electrical connection 212 and a third electrical connection 213, the first electrical connection 211 has a first first projection on the first plane 101, the second electrical connection 212 has a second first projection on the first plane 101, and the third electrical connection 213 has a third first projection on the first plane 101. It can be understood that the shape of the first first projection, the shape of the second first projection and the shape of the third first projection are the same. The first first projection has a first point 2111, the second first projection has a second point 2121, and the third first projection has a third point 2131. The positions of the first point 2111 on the first first projection, the second point 2121 on the second first projection and the third point 2131 on the third first projection are the same. The second projection has a fourth point 41, a fifth point 42 and a sixth point 43, which are located at one end of the second projection facing the first projection. The fourth point 41 is located near the first point 2111 on the second projection, the fifth point 42 is located near the second point 2121 on the second projection, and the sixth point 43 is located near the third point 2131 on the second projection. Specifically, the straight line connecting the first point 2111 and the fourth point 41 extends radially along the first wall portion 12, the straight line connecting the second point 2121 and the fifth point 42 extends radially along the first wall portion 12, and the straight line connecting the third point 2131 and the sixth point 43 extends radially along the first wall portion 12. The circular arc connecting the first point 2111, the second point 2121 and the third point 2131 is parallel to the circular arc connecting the fourth point 41, the fifth point 42 and the sixth point 43. This structure adapts the arrangement of the electrical connection 21 to the structure of the compressor part 4, which can reduce the radial dimension of the compression device 110 along the first wall portion 12, and facilitates the arrangement of the electrical connection 21.

[0026] As Figure 7As shown, as a second optional embodiment of the electrical connector 21, the third projection has a seventh point 131, an eighth point 132, and a ninth point 133. The seventh point 131, the eighth point 132, and the ninth point 133 are all located at one end of the third projection facing the first projection. The seventh point 131 is located near the first point 2111 of the third projection, the eighth point 132 is located near the second point 2121 of the third projection, and the ninth point 133 is located near the third point 2131 of the third projection. Specifically, the straight line connecting the first point 2111 and the seventh point 131 extends radially along the first wall portion 12, the straight line connecting the second point 2121 and the eighth point 132 extends radially along the first wall portion 12, and the straight line connecting the third point 2131 and the ninth point 133 extends radially along the first wall portion 12. The arc connecting the first point 2111, the second point 2121 and the third point 2131 is parallel to the arc connecting the seventh point 131, the eighth point 132 and the ninth point 133. This structure makes the arrangement structure of the electrical connector 21 compatible with the structure of the second wall portion 13, which can reduce the radial dimension of the compression device 110 along the first wall portion 12. At the same time, it can make the second wall portion 13 smoother and flatter, and reduce the risk of interference between the second wall portion 13 and other components, thereby facilitating the arrangement and assembly of the compression device 110.

[0027] like Figure 7 As shown, as a third optional embodiment of the electrical connector 21, the arc connecting the first point 2111, the second point 2121 and the third point 2131, the arc connecting the fourth point 41, the fifth point 42 and the sixth point 43 and the arc connecting the seventh point 131, the eighth point 132 and the ninth point 133 are parallel to each other, so that the arrangement structure of the electrical connector 21 is adapted to the structure of the compressor component 4, and at the same time, the arrangement structure of the electrical connector 21 is adapted to the structure of the second wall portion 13, thereby further reducing the radial dimension of the compression device 110 along the first wall portion 12, and further facilitating the arrangement and assembly of the compression device 110.

[0028] It should be noted that the first wall portion 12 is the portion at the lower end of the shell 1 along the direction of gravity. The first wall portion 12 can be a single wall or at least a portion of a single wall, or a combination of at least a portion of a single wall and at least a portion of other single walls. For example, when the compression device 110 is installed vertically, that is, the axis of the second wall portion 13 extends along the direction of gravity, the first wall portion 12 can be located at the axial lower end of the shell 1; when the compression device 110 is installed horizontally, that is, the extension direction of the axis of the second wall portion 13 is perpendicular to the direction of gravity, the first wall portion 12 can be the portion at the lower end of the second wall portion 13 along the direction of gravity; when the compression device 110 is installed at an angle, that is, the angle between the extension direction of the axis of the second wall portion 13 and the direction of gravity is an acute angle or an obtuse angle, the first wall portion 12 can be a combination of at least a portion of the axial lower end of the shell 1 and at least a portion of the lower end of the second wall portion 13 along the direction of gravity.

[0029] like Figure 3 and Figure 4 As shown, in this embodiment, the protruding structure 3 and the first wall portion 12 are integrally formed. The first wall portion 12 is made of aluminum or an aluminum alloy, and the protruding structure 3 is also made of aluminum or an aluminum alloy. The first wall portion 12 is extruded from a sheet material, and the protruding structure 3 is machined. The electrical connection assembly 2 includes a first fixing member 22 and a second fixing member 23. The first fixing member 22 is made of steel, and the second fixing member 23 is also made of steel. The first fixing member 22 and the protruding structure 3 are welded, and the second fixing member 23 and the first fixing member 22 are welded. The first fixing member 22 includes a first connecting surface 221, and the protruding structure 3 includes a second connecting surface 33. The second connecting surface 33 is located on the protruding structure 3 near the first fixing member 22. The first connecting surface 221 is located on the first fixing member 22 near the second connecting surface 33. The first connecting surface 221 and the second connecting surface 33 are brazed together. Alternatively, the second connecting surface 33 may be the surface of the protruding structure 3 surrounding the first hole 31, the end surface of the protruding structure 3 facing the compressor core 5, or the side surface of the protruding structure 3 facing away from the first hole 31. Furthermore, the second connecting surface 33 may be a combination of at least two of the aforementioned end surfaces. The first fixing member 22 includes a third connecting surface 222, and the second fixing member 23 includes a fourth connecting surface 231. The third connecting surface 222 is located near the second fixing member 23 on the first fixing member 22, and the fourth connecting surface 231 is located near the third connecting surface 222 on the second fixing member 23. The third connecting surface 222 and the fourth connecting surface 231 are resistance welded.

[0030] like Figure 3 and Figure 4As shown, the second fixing member 23 has a second hole 232, and the electric connecting member 21 passes through the second hole 232. The electric connecting assembly 2 comprises an insulating member 24, and the electric connecting member 21, the insulating member 24 and the second fixing member 23 are fixed. The insulating member 24 separates the electric connecting member 21 and the second fixing member 23, and the insulating member 24 can be a glass sintered body, so as to electrically insulate the electric connecting member 21 and the second fixing member 23. Since the brazing is easy to cause the insulating member 24 to be damaged, and the reliability of the direct resistance welding between the steel member and the aluminum and aluminum alloy member is poor, the first fixing member 22 plays a transition role. During the assembly of the compression device 110, the first fixing member 22 and the protruding structure 3 are first brazed, and then the electric connecting member 21, the insulating member 24 and the second fixing member 23 are resistance welded with the assembled component and the first fixing member 22, so as to ensure the reliability of the connection between the electric connecting assembly 2 and the protruding structure 3.

[0031] As shown in Figure 3 and Figure 4 In the present embodiment, a second plane 102 is defined, and the second plane 102 is parallel to or coincides with the axis of the second wall portion 13. The electric connecting member 21 comprises a first portion 214, which is the portion of the electric connecting member 21 located at the end of the second fixing member 23 away from the compressor core 5. The projection of the protruding structure 3 on the second plane 102 covers the projection of the first portion 214 on the second plane 102. This structure makes the protruding structure 3 have a protective effect on the electric connecting member 21, and at the same time makes the outer profile of the shell 1 relatively flat, which can reduce the risk of interference between the compression device 110 and other components.

[0032] In the present application, the protruding structure 3 extends from the first wall portion 12 towards the compressor core 5. The protruding structure 3 has a first hole 31, and the extension direction of the first hole 31 is the same as the extension direction of the protruding structure 3. The electric connecting assembly 2 is at least partially located in the first hole 31. When the electric connecting assembly 2 is located in the first wall portion, the protruding structure 3 can isolate the electric connecting assembly 2 and the oil in the oil cavity 111 of the shell 1 to a certain extent, thereby reducing the negative impact of the oil on the insulation of the electric connecting assembly 2 and improving the safety of the compression device 110 and the thermal management integrated assembly.

[0033] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A compression device, characterized in that, The compressor device comprises a housing, an electrical connection assembly, a protruding structure and a compressor core, the housing has a receiving cavity, the compressor core is located in the receiving cavity, the receiving cavity comprises an oil cavity, the housing comprises a first wall portion, the first wall portion is in contact with the oil cavity, the oil cavity is located on a side of the first wall portion facing the compressor core, the protruding structure is connected with the first wall portion, the protruding structure extends from the first wall portion towards the compressor core, the protruding structure has a first hole, and the electrical connection assembly is at least partially located in the first hole. The protruding structure and the first wall portion are an integral structure, the first wall portion is made of aluminum or aluminum alloy, the protruding structure is made of aluminum or aluminum alloy, the electrical connection assembly comprises an electrical connection piece, a first fixing piece and a second fixing piece, the first fixing piece is made of steel, the second fixing piece is made of steel, the first fixing piece and the protruding structure are welded, the second fixing piece and the first fixing piece are welded, and the electrical connection piece and the second fixing piece are fixed.

2. The compression device of claim 1, wherein, The first fixing piece comprises a first connecting surface, the protruding structure comprises a second connecting surface, and the first connecting surface and the second connecting surface are welded.

3. The compression device of claim 2, wherein, The second connecting surface is at least part of the surface of the protruding structure around the circumferential side of the first hole. Or, the second connecting surface is at least part of the end surface of the protruding structure at one end facing the compressor core. Or, the second connecting surface is at least part of the surface of the protruding structure away from the circumferential side of the first hole. Or, the second connecting surface is a combination of at least two of at least part of the surface of the protruding structure around the circumferential side of the first hole, at least part of the end surface of the protruding structure at one end facing the compressor core, and at least part of the surface of the protruding structure away from the circumferential side of the first hole. The housing comprises a second wall portion surrounding the circumferential side of the compressor core, the first wall portion is located at one end of the second wall portion in the axial direction, and the first wall portion and the second wall portion are sealingly connected.

4. The compression device of claim 1, wherein, The compressor device comprises a compressor component, the electrical connection assembly comprises an electrical connection piece, a first plane is defined, the first plane is perpendicular to the axis of the second wall portion, the projection of the electrical connection piece on the first plane is a first projection, the projection of the compressor component on the first plane is a second projection, and the projection of the second wall portion on the first plane is a third projection, and the first projection is located between the second projection and the third projection. The electrical connection assembly comprises a second fixing piece, the second fixing piece is fixed with the protruding structure, the second fixing piece has a second hole, and the electrical connection piece is at least partially located in the second hole.

5. The compression device of claim 4, wherein, The electrical connection piece comprises a first part, the first part is the part of the electrical connection piece located on the side of the second fixing piece away from the receiving cavity, a second plane is defined, the second plane is parallel to or coincides with the axis of the second wall portion, and the projection of the protruding structure on the second plane covers the projection of the first part on the second plane. The electrical connection piece is arranged in a straight line, and the arrangement direction of the electrical connection piece is perpendicular to the radial direction of the first wall portion.

6. The compression device of claim 4, wherein, ​ 7. The compression device of claim 4, wherein, The electric connection comprises a first electric connection, a second electric connection and a third electric connection, the first electric connection has a first first projection in the first plane, the second electric connection has a second first projection in the first plane, the third electric connection has a third first projection in the first plane, the first first projection has a first point, the second first projection has a second point, the third first projection has a third point, the position of the first point in the first first projection, the position of the second point in the second first projection and the position of the third point in the third first projection are all the same; The second projection has a fourth point, a fifth point and a sixth point, the fourth point, the fifth point and the sixth point are all located at one end of the second projection facing the first projection; The third projection has a seventh point, an eighth point and a ninth point, the seventh point, the eighth point and the ninth point are all located at one end of the third projection facing the first projection; The straight line connecting the first point and the fourth point extends radially along the first wall portion, the straight line connecting the second point and the fifth point extends radially along the first wall portion, the straight line connecting the third point and the sixth point extends radially along the first wall portion, and the circular arc connecting the first point, the second point and the third point is parallel to the circular arc connecting the fourth point, the fifth point and the sixth point; Or, the straight line connecting the first point and the seventh point extends radially along the first wall portion, the straight line connecting the second point and the eighth point extends radially along the first wall portion, the straight line connecting the third point and the ninth point extends radially along the first wall portion, and the circular arc connecting the first point, the second point and the third point is parallel to the circular arc connecting the seventh point, the eighth point and the ninth point; Or, the straight line connecting the first point, the fourth point and the seventh point extends radially along the first wall portion, the straight line connecting the second point, the fifth point and the eighth point extends radially along the first wall portion, the straight line connecting the third point, the sixth point and the ninth point extends radially along the first wall portion, and the circular arc connecting the first point, the second point and the third point, the circular arc connecting the fourth point, the fifth point and the sixth point and the circular arc connecting the seventh point, the eighth point and the ninth point are all parallel to each other.

8. The compression device according to any one of claims 1 to 7, characterized in that The first wall portion comprises a first end face, the first end face is an end face of the first wall portion facing one end of the compressor core, the protruding structure comprises a second end face, the second end face is an end face of the protruding structure facing one end of the compressor core, and the distance between the first end face and the second end face is L, wherein L is greater than or equal to 10 mm.

9. A thermal management integrated assembly, comprising: The compressor device and the flow channel piece are sealingly connected, the compressor device comprises a shell, an electric connection assembly, a protruding structure and a compressor core, the shell has a containing cavity, the compressor core is located in the containing cavity, the containing cavity comprises an oil cavity, the shell comprises a first wall part, the first wall part is in contact with the oil cavity, the oil cavity is located on a side of the first wall part facing the compressor core, the protruding structure is connected with the first wall part, the protruding structure extends from the first wall part towards the compressor core, the protruding structure has a first hole, and the electric connection assembly is at least partially located in the first hole.

10. The thermal management integrated assembly of claim 9, wherein, The shell comprises a second wall part surrounding a circumferential side of the compressor core, and the second wall part and the flow channel piece are in an integrated structure.

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