Compressor assembly and vehicle

Abstract

The invention relates to the technical field of compressors, and discloses a compressor assembly and a vehicle, the compressor assembly comprises a compressor body and a controller, the compressor body comprises a shell, a crankshaft and a bearing, the shell comprises a bottom wall, a side wall and a bearing chamber, the bottom wall and the side wall define a containing cavity, and the side wall is provided with an air inlet; the bottom end of the crankshaft is rotatably connected to the bearing chamber through a bearing, a cavity is formed between the bottom end of the crankshaft and the bottom wall in a spaced mode, and a first channel is formed in the side direction of the bearing chamber and communicates with the containing cavity and the cavity; the controller is arranged below the shell and is in heat conduction connection with the bottom wall. During operation, a refrigerant can be introduced into the accommodating cavity through the air inlet, the refrigerant exchanges heat for the area, located outside the bearing chamber, of the bottom wall, and a part of the refrigerant can enter the cavity through the first channel and exchanges heat for the area, located inside the bearing chamber, of the bottom wall, so that the controller is fully cooled, the cooling effect is improved, and the service life of the controller is prolonged. The operation stability of the compressor is improved, and the service life of the controller is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a compressor assembly and a vehicle. Background Art

[0002] The electric scroll compressor of the related technology introduces refrigerant through an air inlet connected to the inside of the shell. The refrigerant contacts the bottom wall of the shell to dissipate heat to the controller installed on the outside of the bottom wall of the shell. However, the bottom wall of the shell is also equipped with structures such as a crankshaft, which makes it difficult for some areas of the bottom wall of the shell to contact the refrigerant. Therefore, in actual operation, the heat dissipation effect of the controller is not ideal, which can easily trigger the over-temperature protection of the controller or even burn it. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a compressor assembly that can improve heat dissipation performance, and the present application also proposes a vehicle having the compressor assembly.

[0004] In a first aspect, a compressor assembly of an embodiment of the present application comprises a compressor body and a controller, wherein the compressor body comprises a shell, a crankshaft and a bearing, the shell comprises a bottom wall, a side wall and a bearing chamber, the bottom wall and the side wall enclose a accommodating cavity, the side wall is provided with an air inlet connected to the accommodating cavity for supplying refrigerant to enter the accommodating cavity, the bearing chamber is protruded from the side of the bottom wall facing the accommodating cavity, the bottom end of the crankshaft is rotatably connected to the bearing chamber through the bearing, a cavity is formed between the bottom end of the crankshaft and the bottom wall, a first channel is opened laterally in the bearing chamber, the first channel connects the accommodating cavity with the cavity for supplying refrigerant in the accommodating cavity to enter the cavity; the controller is arranged below the shell and is thermally conductively connected to the bottom wall of the shell.

[0005] The compressor assembly according to the embodiment of the present application has at least the following beneficial effects: when in use, a refrigerant can be introduced into the accommodating chamber through the air inlet, and after the refrigerant enters the accommodating chamber, it can contact the area of ​​the bottom wall of the shell located outside the bearing chamber for heat exchange, and a part of the refrigerant in the accommodating chamber can enter the cavity through the first channel of the bearing chamber, and heat the area of ​​the bottom wall located inside the bearing chamber, thereby achieving heat dissipation of the area of ​​the bottom wall corresponding to the cavity. Therefore, the compressor assembly of the embodiment of the present application can not only dissipate heat for the area of ​​the bottom wall located outside the bearing chamber, but also dissipate heat for the area of ​​the bottom wall located inside the bearing chamber, effectively improving the overall heat dissipation performance of the bottom wall, thereby improving the heat dissipation effect on the controller, which is beneficial to improving the operating stability of the compressor and extending the service life of the controller.

[0006] According to some embodiments of the compressor assembly of the present application, the air inlet extends obliquely from the wall of the accommodating cavity opposite to the side wall toward the bottom wall to the wall of the accommodating cavity facing the side wall; and / or, the air inlet is arranged close to the bottom wall.

[0007] According to some embodiments of the compressor assembly of the present application, a second channel is provided inside the crankshaft, the second channel connects the cavity and the accommodating chamber, the second channel is used for allowing the refrigerant entering the cavity from the first channel to flow back to the accommodating chamber through the second channel; and / or, the second channel is used for allowing the lubricating oil in the cavity to flow to the outer peripheral wall of the crankshaft through the second channel.

[0008] According to the compressor assembly of some embodiments of the present application, the second passage includes a first guide hole extending along the axial direction of the crankshaft and a second guide hole extending from the outer peripheral wall of the crankshaft and connected to the first guide hole.

[0009] According to the compressor assembly of some embodiments of the present application, the number of the second guide holes is multiple, and at least two of the multiple second guide holes are distributed at intervals in the circumferential direction of the crankshaft; and / or at least two of the multiple second guide holes are distributed at intervals in the axial direction of the crankshaft.

[0010] According to some embodiments of the compressor assembly of the present application, the first guide hole extends along the axial direction of the crankshaft and is arranged at the center of the crankshaft, and the first guide hole passes through the end surface of the bottom end of the crankshaft, and the second guide hole extends along the radial direction of the crankshaft.

[0011] According to the compressor assembly of some embodiments of the present application, the first passage is located on a side of the bearing chamber facing the air inlet.

[0012] According to the compressor assembly of some embodiments of the present application, the shell also includes a heat dissipation rib, which is protruded from the side of the bottom wall facing the accommodating cavity, and the heat dissipation rib surrounds at least a partial circumference of the bearing chamber, and the heat dissipation rib forms a heat dissipation channel between the bearing chamber and the side wall.

[0013] According to the compressor assembly of some embodiments of the present application, the heat dissipation rib extends from a side of the bearing chamber toward the air inlet to a side of the bearing chamber away from the air inlet, so that the heat dissipation channel has an inlet toward the air inlet and an outlet away from the air inlet.

[0014] On the second aspect, the vehicle according to the embodiment of the present application, including the compressor assembly of the embodiment of the first aspect mentioned above, is conducive to improving the stability of the vehicle's refrigeration system and enhancing the user experience.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of a compressor assembly according to an embodiment of the present application; Figure 2 A schematic cross-sectional view of a compressor assembly according to an embodiment of the present invention along the axial direction of the crankshaft; Figure 3 A schematic diagram of a portion of the internal structure of an embodiment of the present application; Figure 4 A cross-sectional view of a housing along the radial direction of a crankshaft in an embodiment of the present application; Figure 5 for Figure 2 A local enlarged schematic diagram of point A in FIG. Figure 6 It is a schematic diagram of the structure of a crankshaft in one embodiment of the present application; Figure 7 A cross-sectional view of a crankshaft along the axial direction in one embodiment of the present application; Figure 8 This is a cross-sectional view of a crankshaft along the axial direction in another embodiment of the present application.

[0017] Reference numerals: Compressor body 10; Housing 100; accommodating cavity 101; air inlet 102; cavity 103; Bottom wall 110; side wall 120; bearing chamber 130; first channel 131; guide surface 140; first air channel 150; second air channel 160; heat dissipation rib 170; heat dissipation channel 171; inlet 172; outlet 173; heat dissipation area 174; air inlet pipe 180; Crankshaft 200; second channel 201; first guide hole 202; second guide hole 203; bottom end 210; top end 220; Bearing 300; Controller 400; Heating element 410; Pin shaft 500; scroll disk 600; motor 700. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the concept of the present application and the technical effects produced in combination with the embodiments, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present application.

[0019] In the description of the embodiments of the present application, if orientation descriptions are involved, the orientations or positional relationships indicated by "up", "down", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or device referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0020] In the description of the embodiments of the present application, if a feature is referred to as being “set,” “fixed,” “connected,” or “installed” on another feature, it may be directly set, fixed, or connected to another feature, or it may be indirectly set, fixed, connected, or installed on another feature. In the description of the embodiments of the present application, if “several” is involved, it means more than one; if “multiple” is involved, it means more than two; if “greater than,” “less than,” or “exceeds” is involved, it should be understood as not including the number itself; if “above,” “below,” or “within” is involved, it should be understood as including the number itself. If “first” or “second” is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In some compressors, the crankshaft assembly is arranged inside the shell, and the bottom wall of the shell is provided with a bearing chamber for connecting the crankshaft and the bearing of the crankshaft assembly. The controller is installed outside the bottom wall, so that the part of the bottom wall corresponding to the crankshaft and the bearing chamber is difficult to contact the refrigerant, which affects the heat dissipation effect and is not conducive to the stable operation of the controller and the compressor. The embodiment of the present application proposes a compressor that can dissipate heat from the area of ​​the bottom wall of the shell located inside and outside the bearing chamber, so that the controller arranged outside the bottom wall can be fully dissipated to improve the heat dissipation performance.

[0022] refer to Figures 1 to 3The compressor assembly of the embodiment of the present application includes a compressor body 10 and a controller 400. The compressor body 10 includes a housing 100. The housing 100 includes a bottom wall 110, a side wall 120 and a bearing chamber 130. The bottom wall 110 and the side wall 120 enclose a receiving chamber 101. The side wall 120 is provided with an air inlet 102 connected to the receiving chamber 101 for supplying refrigerant to enter the receiving chamber 101. The bearing chamber 130 is convexly arranged on a side of the bottom wall 110 facing the receiving chamber 101. The compressor body 10 also includes a crankshaft 200 and a bearing 300. The crankshaft 200 and the bearing 300 are located in the receiving chamber 101 of the housing 100. The bottom end 210 of the crankshaft 200 is rotatably connected to the bearing chamber 130 through the bearing 300. The bottom end 210 of the crankshaft 200 and the bottom wall 110 are spaced to form a cavity 103. The bearing chamber 130 has a first channel 131 formed laterally therein, the first channel 131 connecting the cavity 103 and the receiving chamber 101, so as to allow the refrigerant in the receiving chamber 101 to enter the cavity 103. The controller 400 is disposed below the housing 100 and is thermally connected to the bottom wall 110 of the housing 100.

[0023] During operation, a refrigerant can be introduced into the accommodating chamber 101 through the air inlet 102, thereby cooling the structural parts inside the accommodating chamber 101 and the bottom wall 110 of the housing 100. After entering the accommodating chamber 101, the refrigerant can contact the area of ​​the bottom wall 110 of the housing 100 outside the bearing chamber 130 for heat exchange, and a part of the refrigerant in the accommodating chamber 101 can enter the cavity 103 between the bottom end 210 of the crankshaft 200 and the bottom wall 110 through the first channel 131 of the bearing chamber 130, thereby contacting the area of ​​the bottom wall 110 inside the bearing chamber 130 for heat exchange, thereby achieving heat dissipation of the bottom wall 110 corresponding to the area in the cavity 103.

[0024] Therefore, the compressor of the embodiment of the present application can not only dissipate heat for the area of ​​the bottom wall 110 of the housing 100 outside the bearing chamber 130, but also dissipate heat for the area of ​​the bottom wall 110 inside the bearing chamber 130, effectively improving the heat dissipation capacity of the bottom wall 110, and then improving the heat dissipation capacity of the controller 400 installed outside the bottom wall 110, which is conducive to improving the operating stability of the compressor and extending the service life of the controller 400. At the same time, the bearing 300 in the cavity 103 can also be fully cooled to reduce the impact of the heating of the bearing 300 on the controller 400.

[0025] refer to Figure 2In some embodiments, the compressor body 10 further includes a scroll 600 and a motor 700 built into the accommodating chamber 101, the rotor of the motor 700 is connected to the outer peripheral wall of the crankshaft 200, the top end 220 of the crankshaft 200 is rotatably connected to the housing 100 through another bearing, and is connected to the scroll 600 through a pin 500 and other structures, thereby driving the crankshaft 200 to rotate and drive the scroll 600 to work (the working principle refers to the working principle of the existing scroll compressor). Among them, the housing 100 can also be provided with an air outlet, for example, the side wall 120 of the housing 100 is provided with an air outlet, or the housing 100 can also include a top wall, the top wall is arranged opposite to the bottom wall 110, and the top wall can be provided with an air outlet. The air outlet is used to lead out the refrigerant in the accommodating chamber 101, so as to take out the heat inside the accommodating chamber 101. The air outlet can be provided on the side of the housing 100 opposite to the air inlet 102 to form convection in the accommodating chamber 101. The air outlet can be arranged at a position farther from the bottom wall 110 than the air inlet 102, and the air inlet 102 is arranged close to the bottom wall 110. For example, the air outlet can be located in the upper half or the top wall of the side wall 120, and the air inlet 102 can be located in the lower half of the side wall 120. The air inlet 102 is arranged close to the bottom wall 110, so that the refrigerant can form convection and flow from bottom to top, and after flowing through the structure inside the accommodating cavity 101, it brings the heat out of the accommodating cavity 101.

[0026] refer to Figures 2 to 4 In some embodiments, the air inlet 102 extends obliquely from the wall surface of the accommodating cavity 101 opposite to the side wall 120 toward the bottom wall 110 to the wall surface of the accommodating cavity 101 facing the side wall 120, so as to guide the refrigerant toward the bottom wall 110. The refrigerant reaches the bottom wall 110 of the housing 100 through the guiding effect of the air inlet 102, which can reduce the refrigerant that flows out without contacting the bottom wall 110 and improve the utilization rate of the refrigerant. Among them, the air inlet 102 can be set close to the bottom wall 110, which can shorten the path of the refrigerant to the bottom wall 110, so that the refrigerant can quickly contact the bottom wall 110 after entering the accommodating cavity 101.

[0027] In one example, the air inlet 102 may extend to the inner wall surface of the bottom wall 110, and the refrigerant flows downward through the guide of the air inlet 102 to directly reach the inner wall surface of the bottom wall 110. Alternatively, the air inlet 102 and the bottom wall 110 may be spaced apart, and the downwardly inclined air inlet 102 allows the refrigerant to flow downward from the top of the bottom wall 110 to the inner wall surface of the bottom wall 110 after entering the air inlet 102.

[0028] refer to Figure 4 and Figure 5In some embodiments, a guide surface 140 is provided on the inner wall of the air inlet 102, and the guide surface 140 extends from the outside to the inside to the wall surface of the accommodating chamber 101 facing the side wall 120, and is obliquely extended toward the bottom wall 110. Alternatively, in some embodiments, the side wall 120 includes a wall body and an air inlet pipe 180, and the air inlet pipe 180 is connected to the outer wall surface of the wall body. The air inlet pipe 180 has an air inlet 102 inside, and the air inlet 102 conducts the wall body of the side wall 120 toward the wall surface of the accommodating chamber 101. The guide surface 140 is provided on the side of the inner wall of the air inlet pipe 180 facing the bottom wall 110, and there is a gap between the guide surface 140 and the bottom wall 110. The downwardly inclined guide surface 140 allows the refrigerant to flow downward from the top of the bottom wall 110 to the inner wall surface of the bottom wall 110 after entering the air inlet 102. Alternatively, the guide surface 140 is disposed on a side of the inner wall of the air inlet pipe 180 away from the bottom wall 110, and the refrigerant can flow toward the bottom wall 110 after entering the air inlet 102 through the guiding effect of the guide surface 140. Alternatively, the air inlet 102 of the air inlet pipe 180 can be a structure that is inclined from the outside to the inside toward the bottom wall 110, or the air inlet 102 of the air inlet pipe 180 includes a first air channel 150 and a second air channel 160 that are connected from the outside to the inside, and the second air channel 160 is inclined from the outside to the inside toward the bottom wall 110, so that the inner wall of the second air channel 160 forms an inclined guide surface 140, and the refrigerant can flow toward the bottom wall 110 after entering the second air channel 160 from the first air channel 150.

[0029] refer to Figure 2 and Figure 5 ,in, Figure 4 and Figure 5 In some embodiments, a second channel 201 is provided inside the crankshaft 200 to connect the cavity 103 and the accommodating chamber 101, so that the refrigerant entering the cavity 103 from the first channel 131 can flow back to the accommodating chamber 101 through the second channel 201. Therefore, after the refrigerant enters the cavity 103 for heat exchange, it can also enter the second channel 201 and flow back to the accommodating chamber 101 through the centrifugal effect of the rotation of the crankshaft 200, and at the same time take out the refrigerant after heat exchange in the cavity 103. Figure 5 The dotted arrows indicate the flow of refrigerant through the air inlet 102, the accommodating chamber 101, the first channel 131, the cavity 103, and the second channel 201. The negative pressure formed in the cavity 103 can help introduce the refrigerant in the accommodating chamber 101 into the cavity 103, so that the bottom wall 110 of the internal area of ​​the bearing chamber 130 can be circulated to dissipate heat.

[0030] In some embodiments, the second channel 201 can be used to allow the lubricating oil in the cavity 103 to flow to the outer peripheral wall of the crankshaft 200 through the second channel 201. The lubricating oil mixed in the refrigerant has a refrigeration and lubrication effect. After the lubricating oil enters the accommodating cavity 101 with the refrigerant, part of the lubricating oil can contact and conduct heat with the area of ​​the bottom wall 110 located outside the bearing chamber 130, and part of the lubricating oil enters the cavity 103 with the refrigerant, and can exchange heat with the part of the bottom wall 110 located in the cavity 103, and then flow to the outer peripheral wall of the crankshaft 200 through the second channel 201, thereby taking away part of the heat while also achieving lubrication of the outer peripheral wall of the crankshaft 200.

[0031] The air inlet 102 continuously introduces refrigerant, and the air outlet is used to lead out the refrigerant in the accommodating chamber 101 and return the refrigerant from the cavity 103 to the accommodating chamber 101, thereby circulating heat dissipation to the bottom wall 110 in the inner and outer areas of the bearing chamber 130.

[0032] It is understandable that in the scheme where the crankshaft 200 is not provided with the second channel 201, the refrigerant entering the cavity 103 can partially return to the accommodating cavity 101 through the gap between the inner and outer rings of the bearing 300, taking away some heat. Providing the second channel 201 on the crankshaft 200 can effectively enhance the flow circulation of the refrigerant in the cavity 103 and further improve the heat dissipation effect.

[0033] refer to Figure 2 , Figure 5 and Figure 6 , the end of the crankshaft 200 extending into the bearing chamber 130 and installed with the bearing 300 can be defined as the bottom end 210, the surface of the bottom end 210 of the crankshaft 200 along the axial direction is the end face, the outer surface of the crankshaft 200 around the axis is the outer peripheral wall, and the other end of the crankshaft 200 along the axial direction is the top end 220, and the top end 220 is used to connect the scroll 600. In some embodiments, a portion of the second channel 201 penetrates the end face of the bottom end 210 of the crankshaft 200 from the inside to form a first guide hole 202; or, a portion of the second channel 201 penetrates the outer peripheral wall of the bottom end 210 of the crankshaft 200 located in the cavity 103 to form the first guide hole 202. The refrigerant entering the cavity 103 can enter the first guide hole 202. Another part of the second channel 201 passes through the outer wall of the crankshaft 200 on the side of the bearing 300 away from the cavity 103 to form a second guide hole 203. Therefore, the refrigerant entering the first guide hole 202 can be dispersed to the surrounding of the crankshaft 200 outside the cavity 103 through the second guide hole 203 and return to the accommodating cavity 101.

[0034] refer to Figure 6 and Figure 7In some embodiments, the second channel 201 includes a first guide hole 202 extending along the axial direction of the crankshaft 200 and a second guide hole 203 extending from the outer peripheral wall of the crankshaft 200 and connected to the first guide hole 202. The first guide hole 202 passes through the end face of the bottom end 210 of the crankshaft 200 to form the first guide hole 202, which is convenient for processing. Compared with passing through the outer peripheral wall of the bottom end 210 of the crankshaft 200, the first guide hole 202 passing through the end face of the bottom end 210 of the crankshaft 200 can reduce the length of the crankshaft 200 located inside the cavity 103. While ensuring the stable installation of the bearing 300, only the end face of the crankshaft 200 needs to be located in the cavity 103. The second guide hole 203 extends along the radial direction of the crankshaft 200 and is connected to the first guide hole 202, thereby forming a radial channel. As the crankshaft 200 rotates, the refrigerant is discharged from the second guide hole 203 extending radially under the action of centrifugal force, which can improve the discharge efficiency.

[0035] In one example, the first guide hole 202 is arranged at the center of the crankshaft 200 to form a center hole structure, which can balance the force of the crankshaft 200 and facilitate positioning and processing. In other examples, the first guide hole 202 can also be set eccentrically relative to the axis of the crankshaft 200, and can also form an internal channel to guide the refrigerant. The second guide hole 203 can also be set obliquely relative to the axial direction of the crankshaft 200 to form an inclined channel, which can also effectively discharge the refrigerant.

[0036] In one example, the second guide hole 203 can be arranged in the lower half of the crankshaft 200 (i.e., the middle part of the crankshaft 200 closer to the bearing chamber 130). For example, the second guide hole 203 is closer to the bottom end 210 relative to the top end 220 of the crankshaft 200, which can reduce the length of the first guide hole 202, thereby shortening the refrigerant flow path. At the same time, the shorter first guide hole 202 is also conducive to reducing processing difficulty.

[0037] In another example, the second guide hole 203 can be arranged in the upper half of the crankshaft 200 (i.e., the middle part of the crankshaft 200 is farther away from the bearing chamber 130). For example, the second guide hole 203 is closer to the top end 220 relative to the bottom end 210 of the crankshaft 200, so as to avoid structures such as the rotor installed on the crankshaft 200 and reduce obstacles to the discharge of refrigerant.

[0038] In some embodiments, the first guide hole 202 may penetrate one or more locations of the bottom end 210 of the crankshaft 200, and increasing the number of penetration locations may facilitate rapid discharge of the refrigerant inside the cavity 103. The multiple locations may be two, three, four or more. For example, the first guide hole 202 may penetrate one or more locations of the end surface of the bottom end 210 of the crankshaft 200, and the first guide hole 202 may also penetrate one or more locations of the peripheral wall of the bottom end 210 of the crankshaft 200 located in the cavity 103, which may improve the efficiency of the refrigerant in the cavity 103 entering the second channel 201, and is conducive to enhancing the heat exchange efficiency.

[0039] refer to Figures 6 to 8 In some embodiments, the number of the second flow guide holes 203 may be one or more, and the number of the second flow guide holes 203 may be two, three, four or more. Increasing the number of the second flow guide holes 203 may help improve the discharge efficiency of the refrigerant in the second channel 201, thereby improving the discharge efficiency of the refrigerant in the cavity 103.

[0040] refer to Figure 7 In one example, at least two of the multiple second guide holes 203 can be distributed circumferentially around the axis of the crankshaft 200. When the refrigerant enters the second channel 201 and flows to the position where the second guide holes 203 are arranged, it can be discharged through the multiple second guide holes 203, which can improve the discharge efficiency of the refrigerant in the second channel 201.

[0041] refer to Figure 8 In another example, at least two of the plurality of second guide holes 203 may be spaced apart along the axial direction of the crankshaft 200, and the coolant may be partially discharged when it enters the first guide hole 202 and flows to the second guide hole 203 closest to the bearing chamber 130, and the remaining coolant in the first guide hole 202 may continue to flow to the second guide hole 203 away from the bearing chamber 130 and be discharged, thereby dispersing the coolant around different axial positions of the crankshaft 200. Part of the second guide holes 203 may be disposed in the lower half of the crankshaft 200, and part of the second guide holes 203 may be disposed in the upper half of the crankshaft 200, or all of the second guide holes 203 may be disposed in the lower half of the crankshaft 200, or all of the second guide holes 203 may be disposed in the upper half of the crankshaft 200.

[0042] It is understandable that even if the second guide hole 203 is equipped with a rotor or other structure, the refrigerant can escape outward through the crankshaft 200 and the gaps between these structures, and can also effectively flow back into the accommodating chamber 101 .

[0043] refer to Figures 2 to 4 In some embodiments, the first channel 131 on the bearing chamber 130 may be provided on the side of the bearing chamber 130 facing the air inlet 102, or the first channel 131 may also be provided on other sides of the bearing chamber 130 away from the air inlet 102, as long as the first channel 131 connects the cavity 103 and the accommodating chamber 101 so that the refrigerant part entering the accommodating chamber 101 can enter the cavity 103 through the first channel 131 for heat exchange. As an example, the first channel 131 may be a notch opened in the bearing chamber 130 along the radial direction of the crankshaft 200, or the first channel 131 may be one or more through holes opened in the bearing chamber 130 along the radial direction of the crankshaft 200.

[0044] Among them, the first channel 131 is arranged on the side of the bearing chamber 130 facing the air inlet 102, so that the first channel 131 can correspond to the position of the air inlet 102. Therefore, the refrigerant entering the accommodating cavity 101 from the air inlet 102 can enter the cavity 103 through the first channel 131, which is beneficial to ensure that the refrigerant enters the cavity 103 and improves the heat dissipation efficiency.

[0045] refer to Figures 3 to 5 In some embodiments, the housing 100 further includes a heat dissipation rib 170, which is protruding from the side of the bottom wall 110 facing the accommodating cavity 101. The heat dissipation rib 170 can conduct heat with the bottom wall 110 and contact with the refrigerant in the accommodating cavity 101 for heat exchange, thereby improving the heat dissipation efficiency of the area of ​​the bottom wall 110 outside the cavity 103.

[0046] refer to Figures 3 to 5 In some embodiments, the heat dissipation ribs 170 surround at least a portion of the outer circumference of the bearing chamber 130, thereby forming a heat dissipation channel 171 between the bearing chamber 130 and the side wall 120 of the housing 100. The number of heat dissipation ribs 170 may be one or more. One heat dissipation rib 170 may separate two heat dissipation channels 171 between the bearing chamber 130 and the side wall 120 of the housing 100. The number of heat dissipation ribs 170 may be two, three or more. At least two of the multiple heat dissipation ribs 170 are arranged at intervals along the radial direction of the crankshaft 200, thereby separating multiple heat dissipation channels 171 between the bearing chamber 130 and the side wall 120 of the housing 100. Among them, Figure 4 The dotted arrows indicate that the refrigerant flowing in from the air inlet 102 flows through the heat dissipation channel 171 . The refrigerant distributed in each heat dissipation channel 171 can maintain a stable flow to a certain extent, reducing the turbulence of the refrigerant in different areas of the bottom wall 110 , which is beneficial to improving the uniformity of heat dissipation.

[0047] refer to Figures 3 to 5 In some embodiments, at least two of the multiple heat dissipation ribs 170 are semi-arc-shaped, arranged at intervals along the radial direction of the crankshaft 200, and extend from the side of the bearing chamber 130 facing the air inlet 102 to the side of the bearing chamber 130 away from the air inlet 102, so that the heat dissipation channel 171 has an inlet 172 facing the air inlet 102 and an outlet 173 away from the air inlet 102. Therefore, after the refrigerant enters the accommodating cavity 101 from the air inlet 102, part of the refrigerant can enter each heat dissipation channel 171 through the inlet 172 of the heat dissipation channel 171, effectively ensuring that the refrigerant is evenly distributed. In the process of flowing along the heat dissipation channel 171, heat exchange can be performed on the heat dissipation ribs 170 and the bottom wall 110 corresponding to the heat dissipation channel 171 area at the same time, so that the refrigerant can effectively dissipate heat from the bottom wall 110 corresponding to the area of ​​each heat dissipation channel 171, and the refrigerant in the heat dissipation channel 171 flows out from the outlet 173 located on the other side of the bearing chamber 130, taking away the heat generated by the operation of the controller 400.

[0048] refer to Figures 3 to 5 In some embodiments, at least one of the plurality of heat dissipation ribs 170 is located on the opposite side of the at least two semi-arc heat dissipation ribs 170 relative to the bearing chamber 130, and a heat dissipation area 174 is formed outside the bearing chamber 130, wherein: Figure 4 The dotted arrows indicate that the refrigerant flowing in from the air inlet 102 flows through the heat dissipation channel 171 and the heat dissipation area 174. At least part of the heating elements 410 of the controller 400 are opposite to the heat dissipation area 174. Part of the refrigerant entering the accommodating cavity 101 from the air inlet 102 can enter the heat dissipation area 174. The heat dissipation ribs 170 form a heat dissipation area 174 on the other side of the bearing chamber 130 relative to the heat dissipation channel 171, which can help to gather the refrigerant inside to dissipate the heat of the heating elements 410 opposite to the heat dissipation area, thereby reducing the probability of the refrigerant flowing to other areas.

[0049] refer to Figures 3 to 5 In some embodiments, the inlet 172 of the heat dissipation channel 171 and the first channel 131 of the bearing chamber 130 are both arranged toward the air inlet 102. Thus, a portion of the refrigerant entering through the air inlet 102 can enter the heat dissipation channel 171 through the inlet 172 of the heat dissipation channel 171, and a portion can continue to flow inward into the cavity 103, thereby reducing the obstruction of the first channel 131 by the heat dissipation ribs 170.

[0050] It is understandable that the development trend of electric scroll compressors is large displacement and high voltage, which increases the heat generated by the power module of the controller 400. If the heat dissipation is not good, it is easy to trigger the over-temperature protection of the controller 400 or even burn it, resulting in failure to operate normally. The compressor assembly of the embodiment of the present application can effectively improve the heat dissipation performance of the controller 400, so that the controller 400 can fully dissipate heat, which is conducive to the development of large displacement and high voltage of the compressor.

[0051] refer to Figures 2 to 5As an example, when the compressor assembly of the embodiment of the present application is used, under the premise of ensuring the strength of the bearing chamber 130 of the housing 100, a first channel 131 is set on its side so that the refrigerant (refrigeration gas and / or lubricating oil) can enter the inner wall cavity 103 of the bearing chamber 130 and exchange heat with the bottom wall 110 located in the bottom area of ​​the cavity 103. On the basis of this structural design, in order to improve the cooling performance of the controller 400, a first guide hole 202 is provided on the bottom end face of the crankshaft 200 while ensuring the strength of the crankshaft 200, and three second guide holes 203 are opened in the middle of the crankshaft 200. A second channel 201 is provided inside the crankshaft 200 to connect the first guide hole 202 and the second guide hole 203, so that the refrigerant accumulated inside the cavity 103 can flow upward along the second channel 201 of the crankshaft 200. Under the high-speed rotation of the crankshaft 200, the refrigerant inside the crankshaft 200 is thrown out by the action of centrifugal force, and the pressure inside the crankshaft 200 is reduced. Therefore, the refrigerant gas will flow back into the cavity 103 and the crankshaft 200 under the action of pressure to form a cycle.

[0052] refer to Figures 2 to 5 As an example, when the compressor of the embodiment of the present application is used, the outer wall of the bottom wall 110 of the housing 100 is connected to the controller 400. If there is a gap between the outer surface of the bottom wall 110 and the top 220 of the controller 400, it can be filled with thermal conductive silicone grease. The heating element 410 of the controller 400 can be an IGBT (insulated gate bipolar transistor). As the core component of the motor control module of the electric compressor, the IGBT can ensure the normal operation of the compressor and the stability of the system through efficient energy conversion and precise control.

[0053] In the embodiment of the present application, the controller 400 has a heating element 410, and the heating element 410 of the controller 400 is thermally connected to the outer side of the bottom wall 110. During operation, the heat generated by the heating element 410 can be thermally conducted through the bottom wall 110. By dissipating the heat in the areas outside and inside the bearing chamber 130 of the bottom wall 110, the overall heat dissipation capacity of the bottom wall 110 can be effectively improved, thereby improving the thermal conductivity efficiency of the bottom wall 110 to the heating element 410, which is beneficial to fully dissipate the heat of the heating element 410.

[0054] In some embodiments, the controller 400 has a heating element 410 that is directly opposite to the cavity 103, and part of the heating element 410 is connected to the outer side of the bottom wall 110 directly opposite to the cavity 103 between the bottom end 210 of the crankshaft 200 and the bottom wall 110, so that by introducing refrigerant into the cavity 103, the heat generated by the operation of the heating element 410 of the controller 400 that is directly opposite to the cavity 103 is brought out of the cavity 103 through the refrigerant, thereby effectively improving the heat dissipation efficiency of the heating element 410 that is directly opposite to the cavity 103, allowing the controller 400 to fully dissipate heat, reducing the risk of local overheating or burning of the controller 400, not only improving the heat dissipation efficiency, but also improving the stability of the compressor operation and the life of the controller 400.

[0055] The compressor assembly of the embodiment of the present application can be used in the refrigeration system of the vehicle, can be used to cool and dehumidify the air in the vehicle, or can be used as part of the thermal management system of the new energy vehicle for temperature regulation. By improving the heat dissipation capacity of the controller 400 installed on the outside of the bottom wall 110 of the housing 100, the operating stability of the compressor is improved, and the service life of the controller 400 is extended, thereby ensuring the stable operation of the refrigeration system.

[0056] The vehicle of the embodiment of the present application includes the refrigeration system of the above embodiment, and the vehicle can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle. The compressor assembly of the embodiment of the present application can improve the stability of the vehicle's refrigeration system, which is conducive to improving the user experience.

[0057] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A compressor assembly, characterized in that: include: A compressor body, the compressor body comprising a shell, a crankshaft and a bearing, the shell comprising a bottom wall, a side wall and a bearing chamber, the bottom wall and the side wall enclose a receiving chamber, the side wall is provided with an air inlet connected to the receiving chamber for supplying refrigerant into the receiving chamber, the bearing chamber is convexly arranged on a side of the bottom wall facing the receiving chamber, the bottom end of the crankshaft is rotatably connected to the bearing chamber through the bearing, a cavity is formed between the bottom end of the crankshaft and the bottom wall, a first channel is opened laterally of the bearing chamber, the first channel connects the receiving chamber with the cavity for supplying refrigerant in the receiving chamber into the cavity; A controller is disposed below the housing and is thermally connected to the bottom wall.

2. The compressor assembly according to claim 1, characterized in that: The air inlet extends obliquely from the wall surface of the accommodating cavity opposite to the side wall toward the bottom wall to the wall surface of the accommodating cavity facing the side wall; And / or, the air inlet is arranged close to the bottom wall.

3. The compressor assembly according to claim 1, characterized in that: A second channel is provided inside the crankshaft, and the second channel connects the cavity and the accommodating chamber. The second channel is used for allowing the refrigerant entering the cavity from the first channel to flow back to the accommodating chamber through the second channel; and / or, the second channel is used for allowing the lubricating oil in the cavity to flow to the outer peripheral wall of the crankshaft through the second channel.

4. The compressor assembly according to claim 3, characterized in that: The second passage includes a first guide hole extending in the axial direction of the crankshaft and a second guide hole extending from the outer peripheral wall of the crankshaft and communicating with the first guide hole.

5. The compressor assembly according to claim 4, characterized in that: There are multiple second guide holes, and at least two of the multiple second guide holes are distributed at intervals around the circumference of the crankshaft; and / or at least two of the multiple second guide holes are distributed at intervals along the axial direction of the crankshaft.

6. The compressor assembly according to claim 4, characterized in that: The first guide hole extends along the axial direction of the crankshaft and is arranged at the center of the crankshaft. The first guide hole passes through the end surface of the bottom end of the crankshaft, and the second guide hole extends along the radial direction of the crankshaft.

7. The compressor assembly according to claim 1, characterized in that: The first passage is located at a side of the bearing chamber facing the air inlet.

8. The compressor assembly according to claim 1, characterized in that: The shell also includes a heat dissipation rib, which is protruding from the side of the bottom wall facing the accommodating cavity, and surrounds at least a portion of the outer circumference of the bearing chamber, and forms a heat dissipation channel between the bearing chamber and the side wall.

9. The compressor assembly according to claim 8, characterized in that: The heat dissipation ribs extend from a side of the bearing chamber facing the air inlet to a side of the bearing chamber facing away from the air inlet, so that the heat dissipation channel has an inlet facing the air inlet and an outlet facing away from the air inlet.

10. A vehicle, characterized in that A compressor assembly comprising any one of claims 1 to 9.

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