Refrigerant refrigeration cycle device, thermal management system and vehicle

Abstract

According to the refrigerant refrigeration cycle device, the heat management system and the vehicle, the structure of the refrigerant refrigeration cycle device is improved, so that the refrigerant entering the air suction side of the compressor is gasified more completely, the compressor is effectively protected, and the durability of the refrigerant refrigeration cycle device is improved. The refrigerant refrigeration cycle device comprises a compressor shell with an inner cavity, the compressor shell is provided with a second refrigerant flow channel, the second refrigerant flow channel comprises a third refrigerant sub-flow channel and a fourth refrigerant sub-flow channel which are spaced, the third refrigerant sub-flow channel is used for containing high-pressure liquid refrigerants, and the fourth refrigerant sub-flow channel is used for containing high-pressure liquid refrigerants. The fourth refrigerant sub-runner is used for accommodating a low-pressure liquid refrigerant; and a refrigerant located in the third refrigerant sub-flow channel can exchange heat with a refrigerant located in the fourth refrigerant sub-flow channel. Therefore, the refrigerant entering the low-pressure side is heated, and complete gasification of the refrigerant entering the low-pressure side is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of vehicle thermal management technology, specifically to a refrigerant refrigeration cycle device, a thermal management system, and a vehicle. Background Technology

[0002] In modern automotive manufacturing, with consumers increasingly demanding higher levels of vehicle comfort, the performance and efficiency of automotive air conditioning systems, as key components for enhancing the driving experience, have become a focus for automakers. The refrigerant refrigeration circuit, as the core component of an automotive air conditioning system, typically consists of four main parts: a compressor, a condenser, an evaporator, and a throttle valve. In traditional solutions, these components are usually installed as independent units and interconnected through a complex air conditioning piping system to achieve refrigerant circulation and heat exchange.

[0003] However, in traditional refrigerant refrigeration circuits, there is a situation where the refrigerant on the compressor suction side is not completely vaporized, which can damage the compressor. Utility Model Content

[0004] The purpose of this invention is to provide a refrigerant refrigeration cycle device, a thermal management system, and a vehicle. By improving the structure of the refrigerant refrigeration cycle device, the refrigerant entering the compressor suction side is vaporized more completely, thereby effectively protecting the compressor and increasing the durability of the refrigerant refrigeration cycle device.

[0005] This application provides a refrigerant refrigeration cycle device, including a compressor housing with an inner cavity. The compressor housing is configured with a second refrigerant flow channel, which includes a third refrigerant sub-flow channel and a fourth refrigerant sub-flow channel spaced apart from each other. The third refrigerant sub-flow channel is used to contain high-pressure liquid refrigerant, and the fourth refrigerant sub-flow channel is used to contain low-pressure liquid refrigerant. The refrigerant located in the third refrigerant sub-flow channel can exchange heat with the refrigerant located in the fourth refrigerant sub-flow channel.

[0006] By setting up a third and fourth refrigerant sub-channels that can exchange heat, the refrigerant entering the low-pressure side is heated, thereby ensuring the complete vaporization of the refrigerant entering the low-pressure side.

[0007] Optionally, the compressor housing includes a low-pressure housing section, the low-pressure housing section includes a low-pressure pipe housing and a third protrusion connected to the low-pressure pipe housing, and the third refrigerant sub-channel and the fourth refrigerant sub-channel are both disposed on the third protrusion.

[0008] Optionally, the portion of the third protrusion that has the third refrigerant sub-channel and the fourth refrigerant sub-channel is defined as the first sub-part;

[0009] The low-pressure shell section also includes a cover plate. The first sub-section has a sub-section outer wall. The sub-section outer wall is provided with a second groove and a third groove. The cover plate is radially attached to the sub-section outer wall. The second groove and part of the cover plate form part of the third refrigerant sub-channel. The third groove and part of the cover plate form part of the fourth refrigerant sub-channel.

[0010] Optionally, the second tank has a fifth opening and a sixth opening, which are located at two ends of the second tank, respectively.

[0011] The second tank is connected to the liquid storage chamber via the fifth port; the second tank is connected to the evaporation inlet via the sixth port.

[0012] Optionally, the third tank has a seventh port and a refrigerant inlet, the seventh port being located at one end of the third tank in the extending direction of the third tank, and the refrigerant inlet being located at the other end;

[0013] The seventh port is used to connect to the evaporator outlet, and the refrigerant inlet is used to connect to the refrigerant inlet.

[0014] Optionally, the first sub-section has a first region that extends radially beyond the low-pressure housing;

[0015] The first region is provided with a valve channel that penetrates the first sub-part and forms a ninth opening on the outer wall of the sub-part and a tenth opening on the inner wall of the sub-part opposite to the outer wall of the sub-part.

[0016] The refrigerant refrigeration cycle device also includes a throttling valve, a portion of which is inserted into the valve channel through the tenth port. The throttling valve has a valve inlet and a valve outlet, both of which are located within the valve channel.

[0017] The second tank is connected to the valve inlet of the throttling valve via the sixth port; the valve outlet of the throttling valve is connected to the evaporation inlet via the ninth port.

[0018] Optionally, the low-pressure shell section further includes a low-pressure rear end face; the portion of the low-pressure rear end face located in the first sub-section has a tenth port, which is connected to the third groove via the seventh port;

[0019] The tenth port is equipped with a second sensor.

[0020] Optionally, the third groove extends in a straight line along the height direction; or,

[0021] The third trough extends in a wave-like shape along the height direction.

[0022] Optionally, the second groove extends in an S-shape, spiraling along the height direction; or,

[0023] The second groove extends in an S-shape, spiraling along the axial direction of the inner cavity; or,

[0024] The second trough extends in a wave-like shape along the height direction.

[0025] Optionally, the wavy third groove and the wavy second groove are at least partially identical in shape.

[0026] Optionally, the compressor housing further includes a scroll shell section, the low-pressure shell section having a low-pressure front end face, a portion of the low-pressure front end face being recessed axially toward the direction close to the refrigerant inlet to form a cavity;

[0027] The vortex shell section has a moving shell rear end face, which abuts against the low-pressure front end face axially, and part of the moving shell rear end face and the concave cavity together form the liquid storage cavity.

[0028] Optionally, a portion of the third protrusion and a portion of the outer wall of the low-pressure pipe shell form the cavity;

[0029] The portion of the third protrusion that forms the cavity is defined as the second sub-part; the first sub-part and the second sub-part are distributed sequentially along the axial direction.

[0030] Optionally, the fourth refrigerant sub-channel is located on the side of the third refrigerant sub-channel away from the second sub-section in the axial direction.

[0031] A thermal management system, including a refrigerant refrigeration cycle device.

[0032] A vehicle including a thermal management system. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0034] Figure 1 This is a schematic diagram of the refrigerant refrigeration cycle device in an embodiment of this utility model;

[0035] Figure 2 yes Figure 1 An explosion diagram;

[0036] Figure 3 yes Figure 1 Cross-sectional view;

[0037] Figure 4 yes Figure 1 A radial side view;

[0038] Figure 5 This is a schematic diagram of the heat exchange component.

[0039] Figure 6 This is a schematic diagram of the structure after the heat exchange components are connected to the high-pressure shell section, showing the first refrigerant sub-channel;

[0040] Figure 7 This is an axial side view of the front side of the moving scroll housing;

[0041] Figure 8 This is an axial side view of the rear side of the moving scroll housing.

[0042] Figure 9 yes Figure 1 A partial structural explosion diagram, mainly showing the low-pressure shell section and the moving vortex disk shell;

[0043] Figure 10 This is a rear axonometric view of the low-pressure shell section.

[0044] Figure 11 This is the front axonometric view of the low-pressure shell section.

[0045] Figure 12 This is a side view of the radial side of the low-pressure shell section;

[0046] Figure 13 This is an explosion diagram of the low-pressure shell section and the cover plate;

[0047] Figure 14 yes Figure 13 A schematic diagram of the structure after the medium and low pressure shell section and cover plate are combined;

[0048] Figure 15 This is a schematic diagram of the flow channel in the low-pressure shell section;

[0049] Figure 16 This is one of the schematic diagrams showing the flow direction between the fourth and fifth tanks;

[0050] Figure 17 This is the second schematic diagram showing the flow direction between the fourth and fifth tanks;

[0051] Figure 18 This is the third schematic diagram showing the flow direction of the fourth and fifth tanks;

[0052] Figure 19 This invention presents a schematic diagram of the flow channel connection of the refrigerant refrigeration cycle device in an embodiment of the present invention.

[0053] in, Figures 1-19 The accompanying figure labels are as follows:

[0054] 1-Compressor housing; 1a-Inner cavity; 1a-1-High pressure side; 1a-2-Low pressure side; 11-High pressure housing section; 11a-First connecting plate; 11a-1-Outer wall of plate; 11b-First flow channel pipe; 11b-1-First pipe section; 11b-1a-Outlet; 11b-1b-Second outlet; 11b-2-Second pipe section; 11b-3-First refrigerant sub-flow channel; 11c-First protrusion; 12-Vortex 121-Stationary vortex disc shell; 121a-Stationary shell rear end face; 122-Moving vortex disc shell; 122a-Moving vortex coil section; 122b-Second protrusion; 122b-1-First groove; 122b-1a-Fourth opening; 122b-1b-Third opening; 122b-1c-Second refrigerant flow channel; 122c-Moving shell rear end face; 122d-Moving shell front end face; 122e-Insulation cavity; 13- Low-pressure shell section; 131-Low-pressure front end face; 132-Low-pressure rear end face; 133-Low-pressure tube shell; 134-Heat exchange plate section; 134a-First sub-section; 134a-1-Sub-section outer wall; 134a-2-First region; 134a-3-Valve passage; 134a-3a-Ninth port; 134a-3b-Tenth port; 134a-4-Second tank; 134a-4a-Fifth port; 134a-4 b-Sixth port; 134a-4c-Third refrigerant sub-channel; 134a-5-Third tank; 134a-5a-Seventh port; 134a-5b-Air inlet; 134a-5c-Fourth refrigerant sub-channel; 134a-5d-Eleventh port; 134b-Second sub-section; 134b-1-Liquid storage chamber; 134b-1a-Concave cavity; 135-Cover plate; 135a-One hole; 135b-Two holes;

[0055] 2-Heat exchange assembly; 21-Condenser; 21a-Condenser shell; 22-Evaporator; 22a-Evaporator shell; 23-Sealing plate; 231-First plate wall; 231a-Condenser inlet; 231b-Condenser outlet; 231c-Evaporator outlet; 231d-Evaporator inlet; 232-Second plate wall;

[0056] 3-Throttle valve;

[0057] 41-First sealing structure; 42-Second sealing structure; 43-Third sealing structure;

[0058] 51-First connecting component; 51a-First connector; 52-Second connecting component; 52a-Second connector;

[0059] 61 - First sensor; 62 - Second sensor. Detailed Implementation

[0060] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application. To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0061] like Figures 1-19 , Figure 1 This is a schematic diagram of the refrigerant refrigeration cycle device in an embodiment of this utility model; Figure 2 yes Figure 1 An explosion diagram; Figure 3 yes Figure 1 Cross-sectional view; Figure 4 yes Figure 1 A radial side view; Figure 5 This is a schematic diagram of the heat exchange component. Figure 6 This is a schematic diagram of the structure after the heat exchange components are connected to the high-pressure shell section, showing the first refrigerant sub-channel; Figure 7 This is an axial side view of the front side of the moving scroll housing; Figure 8 This is an axial side view of the rear side of the moving scroll housing. Figure 9 yes Figure 1 A partial structural explosion diagram, mainly showing the low-pressure shell section and the moving vortex disk shell; Figure 10 This is a rear axonometric view of the low-pressure shell section. Figure 11 This is the front axonometric view of the low-pressure shell section. Figure 12 This is a side view of the radial side of the low-pressure shell section; Figure 13 This is an explosion diagram of the low-pressure shell section and the cover plate; Figure 14 yes Figure 13 A schematic diagram of the structure after the medium and low pressure shell section and cover plate are combined; Figure 15 This is a schematic diagram of the flow channel in the low-pressure shell section; Figure 16 This is one of the schematic diagrams showing the flow direction between the fourth and fifth tanks; Figure 17 This is the second schematic diagram showing the flow direction between the fourth and fifth tanks; Figure 18 This is the third schematic diagram showing the flow direction of the fourth and fifth tanks; Figure 19 This invention presents a schematic diagram of the flow channel connection of the refrigerant refrigeration cycle device in an embodiment of the present invention.

[0062] like Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 15 as well as Figure 19As shown, this application provides a refrigerant refrigeration cycle device, which includes a heat exchange assembly 2 and a compressor housing 1 with an inner cavity 1a. The heat exchange assembly 2 includes a condenser 21 and an evaporator 22. The compressor housing 1 forms the inner cavity 1a, which accommodates the moving scroll and stationary scroll of the compressor, thereby forming a low-pressure side 1a-2 and a high-pressure side 1a-1. The low-pressure side 1a-2 is located on the side of the moving scroll away from the stationary scroll, and the high-pressure side 1a-1 is located on the side of the stationary scroll away from the moving scroll. Before the gas is compressed, the low-pressure gas enters the inner cavity 1a from the low-pressure side 1a-2. As the moving scroll moves, the gas is gradually compressed and pushed towards the high-pressure side 1a-1.

[0063] The inner cavity 1a has an approximately cylindrical structure. The low-pressure side 1a-2 and the high-pressure side 1a-1 are arranged opposite each other along the axial direction of the inner cavity 1a. The moving scroll and the stationary scroll are distributed sequentially along the axial direction of the inner cavity 1a. Specifically, the inner cavity 1a has an air outlet 11b-1a and an air inlet 134a-5b. The air outlet 11b-1a is connected to the high-pressure side 1a-1, and the air inlet 134a-5b is connected to the low-pressure side.

[0064] Please combine Figure 2 as well as Figures 11-14 In this embodiment, the compressor housing 1 integrates a liquid storage chamber 134b-1 spaced apart from the inner cavity 1a. The liquid storage chamber 134b-1 stores the high-pressure coolant discharged from the condenser 21. This coolant is converted from a gaseous state to a liquid state or a gas-liquid mixture by the condenser 21 and then stored in the liquid storage chamber 134b-1. In conventional solutions, the liquid storage chamber 134b-1 and the compressor housing 1 are separate structures connected by pipes. However, this increases the overall volume of the refrigerant refrigeration cycle device. In this embodiment, by integrating the liquid storage chamber 134b-1 into the compressor housing 1, the volume of the refrigerant refrigeration cycle device can be significantly reduced, and the integration level of the refrigerant refrigeration cycle device can be improved.

[0065] In this embodiment, the traditional external piping scheme is changed, and the structure of integrated piping in the compressor housing 1 is adopted to further reduce the volume and liquid charge of the refrigerant refrigeration cycle device. Specifically, the compressor housing 1 is constructed with a first refrigerant flow channel, and the high-pressure side 1a-1 of the inner cavity 1a is connected to the liquid storage cavity 134b-1 through the first refrigerant flow channel. A condenser 21 is provided between the high-pressure side 1a-1 and the liquid storage cavity 134b-1.

[0066] Specifically, the first refrigerant flow channel includes a first refrigerant sub-flow channel 11b-3 and a second refrigerant sub-flow channel 122b-1c. The high-pressure side 1a-1 is connected to the condenser inlet 231a of the condenser 21 through the first refrigerant sub-flow channel 11b-3, and the condenser outlet 231b of the condenser 21 is connected to the liquid storage chamber 134b-1 through the second refrigerant sub-flow channel 122b-1c. The high-temperature gaseous refrigerant from the high-pressure side 1a-1 enters the condenser 21 through the first refrigerant sub-flow channel 11b-3 and the condenser inlet 231a and undergoes heat exchange within the condenser 21. A heat exchange medium flows within the condenser 21, which can be a heat exchange medium such as an aqueous solution of ethylene glycol. The improvement focus of this application is not on the specific structure within the condenser 21, and will not be elaborated here. After the high-temperature gaseous refrigerant undergoes its first cooling process in the condenser 21, it forms a high-pressure liquid refrigerant. This high-pressure liquid refrigerant enters the liquid storage chamber 134b-1 from the condenser outlet 231b through the second refrigerant sub-channel 122b-1c for storage.

[0067] The compressor housing 1 is also constructed with a second refrigerant flow channel. The liquid storage chamber 134b-1 is connected to the low-pressure side 1a-2 through the second refrigerant flow channel. The second refrigerant flow channel is connected to the expansion valve 3 and the evaporator 22. In the direction of refrigerant flow, the position of the expansion valve 3 connected to the second refrigerant flow channel is located upstream of the connection position of the evaporator 22.

[0068] The second refrigerant flow path includes an upstream medium-temperature flow section and a downstream low-temperature flow section. The portion of the second refrigerant flow path between the outlet of the liquid storage chamber 134b-1 and the inlet of the evaporator 22 is defined as the upstream medium-temperature flow section, and the portion of the second refrigerant flow path between the outlet of the evaporator 22 and the low-pressure side 1a-2 is defined as the downstream low-temperature flow section. The throttling valve 3 is located in the upstream medium-temperature flow section.

[0069] The compressor housing 1 includes a heat exchange plate section 134. A third refrigerant sub-channel 134a-4c and a fourth refrigerant sub-channel 134a-5c are both located within the heat exchange plate section 134. The heat exchange plate section 134 is made of a material such as metal that can conduct heat quickly. The liquid storage chamber 134b-1 is connected to the evaporation inlet 231d via the third refrigerant sub-channel 134a-4c, and the evaporation outlet 231c is connected to the low-pressure side 1a-2 via the fourth refrigerant sub-channel 134a-5c. The refrigerant located in the third refrigerant sub-channel 134a-4c can exchange heat with the refrigerant located in the fourth refrigerant sub-channel 134a-5c.

[0070] Therefore, in the technical solution of this application, the refrigerant in the upstream medium-temperature flow section and the fourth refrigerant sub-channel 134a-5c can exchange heat through the heat exchange plate 134 during the flow process, which further improves the cooling efficiency of the refrigerant.

[0071] In actual operation, the medium-temperature, high-pressure liquid refrigerant from the storage chamber 134b-1 has a relatively high temperature. This portion of the medium-temperature, high-pressure liquid refrigerant passes through the upstream medium-temperature flow section, successively through the throttling valve 3 and the evaporation inlet 231d, and then enters the evaporator 22 for further cooling and depressurization, thus forming a low-pressure, low-temperature gaseous refrigerant. Specifically, the medium-temperature, high-pressure liquid refrigerant from the upstream medium-temperature flow section is transformed into a low-temperature, low-pressure liquid refrigerant after passing through the throttling valve 3, and then enters the evaporator for evaporation and phase change, becoming a low-temperature, low-pressure gaseous refrigerant. The low-temperature, low-pressure gaseous refrigerant flows back to the low-pressure side 1a-2 of the inner cavity 1a after passing through the fourth refrigerant sub-channel 134a-5c. During the refrigerant flow, the low-pressure, low-temperature gaseous refrigerant flowing through the fourth refrigerant sub-channel 134a-5c can also exchange heat with the medium-temperature, high-pressure liquid refrigerant flowing in the upstream medium-temperature section. After heat exchange, the temperature of the medium-temperature, high-pressure liquid refrigerant is further reduced, increasing its subcooling. The increase in subcooling can improve the efficiency of the throttling valve. This improves the efficiency of the entire compression refrigeration cycle while ensuring that the refrigerant entering the compressor is gaseous, which can reduce the compressor's compression power to a certain extent.

[0072] like Figures 4 to 6 The content shown and combined Figure 7 and Figure 9 In some embodiments of this application, the condenser 21 and the evaporator 22 are integrated into a complete module, and the heat exchange assembly 2 is fixedly connected to one side of the compressor housing 1 along the radial direction of the inner cavity 1a.

[0073] Specifically, the heat exchange assembly 2 includes a sealing plate 23, a condenser shell 21a, and an evaporator shell 22a. The condenser shell 21a houses the components of the condenser 21, and the evaporator shell 22a houses the components of the evaporator 22. The sealing plate 23 has a first plate wall 231 and a second plate wall 232 that are radially opposite each other. The first plate wall 231 abuts radially against the compressor housing 1, and both the condenser shell 21a and the evaporator shell 22a are fixedly connected to the second plate wall 232.

[0074] In the example shown, the condenser 21 and evaporator 22 are sequentially distributed along the axial direction of the inner cavity 1a. The condenser 21 is closer to the high-pressure side 1a-1 than the evaporator 22, and the evaporator 22 is closer to the low-pressure side 1a-2 than the condenser 21. That is, the condenser shell 21a and the evaporator shell 22a are distributed along the axial direction, with the condenser shell 21a closer to the high-pressure side 1a-1 and the evaporator shell 22a closer to the low-pressure side 1a-2, which further simplifies the flow channel length.

[0075] In this embodiment, the portion of the compressor housing 1 with the first refrigerant flow channel and the second refrigerant flow channel is located between the portion of the compressor housing 1 with the inner cavity 1a and the heat exchange component 2, thereby further improving the space utilization of the refrigerant refrigeration cycle device.

[0076] To improve the overall strength of the refrigerant refrigeration cycle device, the first plate wall 231 is a straight wall, and the portion of the compressor housing 1 that radially abuts against the first plate wall 231 is in close contact with the first plate wall 231. In this way, the compressor housing 1 and the sealing plate 23 are in radial contact and abut against each other, thereby ensuring the relative radial position of the compressor housing 1 and the sealing plate 23.

[0077] The structure of the compressor housing 1 in this application will be described in detail below.

[0078] like Figure 2 , Figure 3 and Figure 4 As shown, the compressor housing 1 in this application includes a high-pressure housing section 11, a scroll housing section 12, and a low-pressure housing section 13. The scroll housing section 12 is used to accommodate the aforementioned moving scroll and stationary scroll. The low-pressure housing section 13 defines the low-pressure side 1a-2 of the inner cavity 1a, and the high-pressure housing section 11 defines the high-pressure side 1a-1 of the inner cavity 1a. The high-pressure housing section 11, the scroll housing section 12, and the low-pressure housing section 13 are sealed and fixedly connected.

[0079] In the example shown, the high-pressure housing section 11 includes a first connecting plate 11a and a first flow channel pipe 11b. A portion of the first connecting plate 11a protrudes axially forward to form a first protrusion 11c. "Front" refers to the side axially further away from the center of the inner cavity 1a, and vice versa. The terms "front" and "rear" in this application can be understood by referring to the directions shown in the accompanying drawings. The inner wall of the first protrusion 11c defines a portion of the inner cavity 1a and serves as the high-pressure side 1a-1. The first flow channel pipe 11b is disposed on the axial end face of the compressor housing 1, and has an outlet 11b-1a; a condenser inlet 231a is connected to the outlet 11b-1a. By disposing the first flow channel pipe 11b on the end face of the inner cavity 1a, the first flow channel pipe 11b can be adapted to the location of the condenser inlet 231a, further reducing the length of the pipeline.

[0080] The first flow channel 11b is disposed on the first connecting plate 11a; the first flow channel 11b defines the first refrigerant sub-flow channel 11b-3, and the first flow channel 11b, the first protrusion 11c and the first connecting plate 11a are integrally formed structures.

[0081] The first connecting plate 11a has an outer wall 11a-1, where "outer" refers to a position that is radially opposite to the inner cavity 1a and away from the side where the inner cavity 1a is located. The outer wall 11a-1 radially abuts against a portion of the side wall of the heat exchange assembly 2.

[0082] As shown in the example, the first flow channel 11b includes a first pipe segment 11b-1 and a second pipe segment 11b-2, which are arranged at an angle. The first pipe segment 11b-1 extends radially and is located at the top of the first connecting plate 11a in the height direction of the heat exchange assembly 2. The second pipe segment 11b-2 is arranged perpendicular to the first pipe segment 11b-1, and its bottom end is connected to the first protrusion 11c. Of course, the first pipe segment 11b-1 and the second pipe segment 11b-2 can also be arranged at an acute angle or an obtuse angle, which can be determined by those skilled in the art.

[0083] Among them, the air outlet 11b-1a is located at the top of the outer wall 11a-1 of the plate, radially facing the sealing plate 23, and is inserted opposite to the inlet of the condenser 21 located on the sealing plate 23.

[0084] Of course, the first flow channel pipe 11b can also be set at the bottom of the first connecting plate 11a, that is, the outlet 11b-1a is located at the bottom of the first connecting plate 11a and radially toward the sealing plate 23, and the inlet of the condenser 21 can be set accordingly.

[0085] Combination Figure 6 In the axial direction, the first protrusion 11c extends beyond the surface of the first connecting plate 11a. The top and bottom ends of the outer wall 11a-1 of the plate are respectively provided with bolt connection grooves, which can be adapted to the sealing plate 23 and extend radially.

[0086] In the example shown in the figure, one bolt connection groove is located on the top side wall of the first flow channel 11b, and the other bolt connection groove is located on the bottom of the first connecting plate 11a.

[0087] Therefore, by extending the first protrusion 11c beyond the surface of the first connecting plate 11a and using the first connecting plate 11a to radially abut against the heat exchange assembly 2 and form a bolt connection, the part connecting the high-pressure shell section 11 and the sealing plate 23 can be moved axially inward, thereby providing more space for the layout of the first flow channel pipe 11b and improving the utilization rate of the axial space of the refrigerant refrigeration cycle device.

[0088] In the example shown, the first flow channel 11b also has a second port 11b-1b, and a first sensor 61 is provided in the second port 11b-1b. The first sensor 61 is a temperature and pressure sensor, and the compression efficiency of the compressor is adjusted according to the temperature and pressure values ​​collected by the first sensor 61 in the first flow channel 11b.

[0089] Optionally, the first flow channel 11b has a second opening 11b-1b, located at the junction of the first pipe segment 11b-1 and the second pipe segment 11b-2. Specifically, the second opening 11b-1b is axially located on the side of the first flow channel 11b opposite to the first protrusion 11c. This further utilizes the existing axial space and improves the axial space utilization rate of the refrigerant refrigeration cycle device.

[0090] Combined Figure 3 In other embodiments, the compressor housing 1 includes a scroll housing section 12 fixedly connected to the high-pressure housing section 11, and a second refrigerant sub-channel 122b-1c is constructed in the scroll housing section 12. Axially, the scroll housing section 12 is closer to the low-pressure side 1a-2 than the high-pressure housing section 11, thus the temperature of the refrigerant flowing through the scroll housing section 12 is lower than the temperature of the refrigerant in the high-pressure housing section 11. The second refrigerant sub-channel 122b-1c connects to the condenser outlet 231b, and the temperature of the refrigerant within it is lower than the temperature within the first refrigerant sub-channel 11b-3. By placing the second refrigerant sub-channel 122b-1c in the scroll housing section 12, the refrigerant within the second refrigerant sub-channel 122b-1c can be further cooled, increasing the liquid content of the refrigerant entering the liquid storage chamber 134b-1.

[0091] Combination Figure 4 , Figure 6 and Figure 7 The volute shell section 12 includes a stationary volute shell 121 and a moving volute shell 122 connected axially. The moving volute shell 122 also includes a moving volute tube section 122a and a second protrusion 122b fixedly connected to the moving volute tube section 122a. The moving volute tube section 122a defines a portion of the inner cavity 1a. The second protrusion 122b extends from the moving volute tube section 122a toward the side closer to the heat exchange assembly 2 until the second protrusion 122b radially abuts against a portion of the sidewall of the heat exchange assembly 2.

[0092] The second protrusion 122b is provided with at least a portion of the second refrigerant sub-channel 122b-1c. The second refrigerant sub-channel 122b-1c has a third port 122b-1b and a fourth port, both of which are located in the moving volute housing 122. The third port 122b-1b is located at the portion of the second protrusion 122b that radially abuts against the heat exchange assembly 2. The third port 122b-1b is used to connect with the condenser outlet 231b, which is located on the sealing plate 23.

[0093] In such Figure 4 , Figure 7 and Figure 8In the example shown, the third port 122b-1b is located below the second protrusion 122b in the height direction. Thus, on the side where the compressor housing 1 is located, the third port 122b-1b and the outlet 11b-1a are respectively located on the upper and lower sides of the compressor housing 1 in the height direction. Correspondingly, the condenser shell 21a is projected in a direction perpendicular to the sealing plate 23 to form a first projection on the sealing plate 23, the first projection being a quadrilateral; the condenser inlet 231a and the condenser outlet 231b are arranged along the diagonal of the first projection.

[0094] The moving vortex shell 122 includes a front face 122d, and the stationary vortex shell 121 also has a rear face 121a that is axially fitted with the front face 122d. Here, "front" and "rear" are defined with reference to the axial direction of the inner cavity 1a, with the direction pointing towards the high-pressure side 1a-1 being defined as front and the opposite direction as rear.

[0095] Continue to combine Figure 3 , Figure 4 and Figure 8 The area belonging to the second protrusion 122b on the front end face 122d of the moving shell is axially recessed to form the first groove 122b-1. The third opening 122b-1b is connected to the first groove 122b-1. The first groove 122b-1 is spaced apart from the inner cavity 1a. The first groove 122b-1 and part of the rear end face 121a of the stationary shell form part of the second refrigerant sub-channel 122b-1c.

[0096] In the example shown, the first tank 122b-1 extends along the height direction. A third port 122b-1b is connected to one end of the first tank 122b-1 along its extension direction, and a fourth port is connected to the other end. The fourth port communicates with the liquid storage chamber 134b-1. Specifically, the moving vortex shell 122 also has a moving shell rear end face 122c that is axially opposite to the moving shell front end face 122d, and the fourth port is located on the moving shell rear end face 122c.

[0097] In other words, in this embodiment, the second refrigerant sub-channel 122b-1c utilizes the axial and radial space of the second protrusion 122b, thereby integrating the second refrigerant sub-channel 122b-1c into the volute housing. In the above embodiment, the liquid storage chamber 134b-1 is located axially behind the second protrusion 122b, where "rearly" refers to the direction axially pointing towards the low-pressure side 1a-2. That is, the liquid storage chamber 134b-1 corresponds axially to the rear side of the volute housing section 12. This further optimizes the distribution of the flow channels and further reduces the size of the refrigerant refrigeration cycle device.

[0098] In the embodiments of this application, a heat-insulating cavity 122e is provided between the radial moving vortex section 122a and the second protrusion 122b. This prevents the refrigerant in the cavity from exchanging heat with the refrigerant in the second refrigerant sub-channels 122b-1c.

[0099] In the above implementation method, please refer to Figure 6 , Figure 7 , Figure 9 and Figure 14 A first sealing structure 41 is provided between the front end face 122d of the moving shell and the rear end face 121a of the stationary shell. Part of the first sealing structure 41 surrounds the inner cavity 1a and part surrounds the first groove 122b-1. In the scheme where a heat insulation cavity 122e is provided, part of the first sealing structure 41 also surrounds the heat insulation cavity 122e, thereby achieving a seal between the heat insulation cavity 122e, the inner cavity 1a, and part of the second refrigerant sub-channels 122b-1c.

[0100] In the solution of this application, in addition to the above-mentioned implementation, the first groove 122b-1 can also be located on the rear end face of the mirror disk, or a portion of the first groove 122b-1 can be located on the front end face of the moving disk and a portion of the first groove 122b-1 can be located on the rear end face of the stationary disk. Solutions that are the same or equivalent to these are all within the protection scope of this patent.

[0101] In other embodiments, the compressor housing 1 further includes a low-pressure housing section 13 connected to the scroll housing section 12. Axially, the low-pressure housing section 13 is connected to the side of the scroll housing section 12 away from the high-pressure housing section 11, and defines a low-pressure side 1a-2. In this embodiment, a liquid storage chamber 134b-1 is integrated into the low-pressure housing section 13, thereby enabling the high-temperature, high-pressure liquid refrigerant in the liquid storage chamber 134b-1 to exchange heat with the medium drawn into the low-pressure housing section 13, ensuring the gaseous state of the refrigerant drawn into the low-pressure housing section 13.

[0102] The low-pressure housing section 13 includes a low-pressure tube shell 133 and a third protrusion connected to the low-pressure tube shell 133. The low-pressure tube shell 133 forms a defined partial cavity 1a. The third protrusion and the second protrusion 122b are located on the same side and protrude radially outward from the low-pressure housing section 13 until they directly or indirectly abut against the heat exchange assembly 2 on the surface of the third protrusion that is radially away from the low-pressure tube shell 133. Thus, the low-pressure housing section 13 also abuts against the sealing plate 23 in the radial direction, which can ensure the support of the compressor housing 1 for the heat exchange assembly 2.

[0103] In the scheme of this application, the second refrigerant flow channel is disposed on the third protrusion, that is, the third refrigerant sub-flow channel 134a-4c and the fourth refrigerant sub-flow channel 134a-5c are both disposed on the third protrusion, and at least a portion of the liquid storage cavity 134b-1 is also disposed on the third protrusion. The portion of the third protrusion in which the second refrigerant flow channel is disposed is defined as the first sub-part 134a, and the portion in which a portion of the liquid storage cavity 134b-1 is disposed is defined as the second sub-part 134b. The first sub-part 134a and the second sub-part 134b are distributed sequentially along the axial direction, and in the axial direction, the first sub-part 134a is located behind the second sub-part 134b.

[0104] In the radial direction, the projection ranges of the first sub-part 134a, the second sub-part 134b, and the inner cavity 1a are aligned. The projection ranges of the first sub-part 134a and the inner cavity 1a coincide, and the projection ranges of the second sub-part 134b also coincide. In the axial direction, the projection ranges of the first sub-part 134a and the second sub-part 134b are adjacent. That is to say, in this scheme, in the axial direction, the fourth refrigerant sub-channel 134a-5c is located on the side of the third refrigerant sub-channel 134a-4c away from the second sub-part 134b.

[0105] Since the refrigerant in the third refrigerant sub-channel 134a-4c of the second refrigerant flow channel comes from the liquid storage chamber 134b-1, its temperature is relatively high. When the medium flows along the third refrigerant sub-channel 134a-4c, it can also exchange heat with the refrigerant drawn into the low-pressure side 1a-2.

[0106] Optionally, in the axial direction, the fourth refrigerant sub-channel 134a-5c is located on the side of the third refrigerant sub-channel 134a-4c away from the liquid storage chamber 134b-1. This not only further reduces the pipeline length, but also allows the third refrigerant sub-channel 134a-4c to exchange heat with the refrigerant on the low-pressure side 1a-2, while also exchanging heat with the medium in the fourth refrigerant sub-channel 134a-5c.

[0107] In this embodiment, the aforementioned heat exchange plate portion 134 belongs to the low-pressure shell section 13. Specifically, the third protrusion serves as the aforementioned heat exchange plate portion 134.

[0108] The specific structure of the liquid storage chamber 134b-1 is described below.

[0109] In some specific embodiments, the low-pressure shell section 13 has a low-pressure front end face 131, and a portion of the low-pressure front end face 131 is recessed axially toward the direction close to the low-pressure side 1a-2 to form a cavity 134b-1a. That is, the low-pressure front end face 131 is recessed axially backward to form the cavity 134b-1a. The cavity 134b-1a has a certain depth in the axial direction and is located in the aforementioned second sub-section 134b.

[0110] The moving scroll shell 122 of the scroll shell section 12 has a moving shell rear end face 122c, which axially abuts against the low-pressure front end face 131. A portion of the moving shell rear end face 122c and the recessed cavity 134b-1a together form a liquid storage cavity 134b-1. The aforementioned fourth opening is located within the recessed cavity 134b-1a of the moving shell rear end face 122c. In this application, the recessed cavity 134b-1a constitutes the entire accommodating space of the liquid storage cavity 134b-1, meaning that the liquid storage cavity 134b-1 is not opposite to the scroll shell section 12. This avoids heat exchange between the high-temperature, high-pressure liquid refrigerant in the liquid storage cavity 134b-1 and the refrigerant in the scroll shell section 12.

[0111] A portion of the third protrusion and a portion of the outer wall of the low-pressure housing 133 form a cavity 134b-1a. That is, in the radial direction, a portion of the wall of the cavity 134b-1a is formed by a portion of the outer wall of the low-pressure housing 133, that is, a portion of the wall of the cavity 134b-1a conforms to the inner cavity 1a, thereby increasing the contact area between the liquid storage cavity 134b-1 and the inner cavity 1a.

[0112] The specific structure of the second refrigerant channel in this application will be further described below with reference to some specific embodiments.

[0113] The surface of the first sub-section 134a facing the heat exchange assembly 2 is defined as the sub-section outer wall 134a-1, and the sub-section outer wall 134a-1 is provided with a second groove 134a-4 and a third groove 134a-5. The low-pressure shell section 13 also includes a cover plate 135, which is radially covered on the sub-section outer wall 134a-1.

[0114] The cover plate 135 is radially attached to the outer wall 134a-1 of the sub-section. The second tank 134a-4 and part of the cover plate 135 form a partial third refrigerant sub-channel 134a-4c. The third tank 134a-5 and part of the cover plate 135 form a partial fourth refrigerant sub-channel 134a-5c.

[0115] Specifically, the second tank 134a-4 has a fifth port 134a-4a and a sixth port 134a-4b, which are located at the ends of corresponding sides in its extension direction. The second tank 134a-4 is connected to the liquid storage chamber 134b-1 via the fifth port 134a-4a. That is, a portion of the third refrigerant sub-channel 134a-4c extends axially through the wall shared by the cavity 134b-1a and the second tank 134a-4. The fifth port 134a-4a is located in the second tank 134a-4, and this portion of the channel penetrates the cavity wall of the cavity 134b-1a to form a corresponding opening (not shown in the figure).

[0116] The second tank 134a-4 is connected to the evaporation inlet 231d via the sixth port 134a-4b. The cover plate 135 has two holes 135b that are adapted to the sixth port 134a-4b and the evaporation inlet 231d. The sixth port 134a-4b is connected to the evaporation inlet 231d via the two holes 135b. The evaporation inlet 231d is also located on the aforementioned sealing plate 23.

[0117] In this embodiment, the third refrigerant sub-channel 134a-4c is also provided with a throttle valve 3. The first sub-section 134a has a first region 134a-2, which is used to integrate the throttle valve 3. The first region 134a-2 extends radially beyond the low-pressure pipe shell 133. The first region 134a-2 is provided with a valve channel 134a-3, which penetrates the first sub-section 134a. A ninth port 134a-3a is formed on the outer wall 134a-1 of the sub-section, and a tenth port 134a-3b is formed on the inner wall of the sub-section opposite to the outer wall 134a-1. A portion of the throttle valve 3 is inserted into the valve channel 134a-3 through the tenth port 134a-3b. The throttle valve 3 has a valve inlet and a valve outlet, both of which are located within the valve channel 134a-3.

[0118] The second tank 134a-4 is connected to the valve inlet of the throttle valve 3 via the sixth port 134a-4b; the valve outlet of the throttle valve 3 is connected to the evaporation inlet 231d via the ninth port 134a-3a.

[0119] In this embodiment, please refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 as well as Figure 10 , Figure 16 As shown, the high-temperature and high-pressure liquid refrigerant from the storage chamber 134b-1 enters the second tank 134a-4 through the fifth port 134a-4a, flows along the second tank 134a-4 to the sixth port 134a-4b, and enters the valve inlet of the throttle valve 3 through the sixth port 134a-4b, and then enters the valve chamber through the valve inlet of the throttle valve 3. After passing through the valve chamber and the valve outlet, it enters the evaporator 22 through the seventh port 134a-5a and the evaporation inlet 231d, thereby reducing the temperature and pressure.

[0120] The third tank 134a-5 has a seventh port 134a-5a and an air inlet 134a-5b. The seventh port 134a-5a is located at one end of the third tank 134a-5 along its extension direction, and the air inlet 134a-5b is located at the other end. The cover plate 135 has a hole 135a that matches the seventh port 134a-5a. The seventh port 134a-5a is used to connect with the evaporator outlet 231c through this hole, and the air inlet 134a-5b is used to connect with the low-pressure side 1a-2. In the example shown in the figure, the seventh port 134a-5a is located at the top of the third tank 134a-5, and the air inlet 134a-5b is located at the bottom. In the height direction of the heat exchange assembly 2, the sixth port 134a-4b and the seventh port 134a-5a are located on the same side. This facilitates the layout of the evaporation inlet 231d and the evaporation outlet 231c, while the fifth port 134a-4a located at the bottom also enables better communication with the liquid storage chamber 134b-1.

[0121] The low-pressure housing section 13 also includes a low-pressure rear end face 132; the portion of the low-pressure rear end face 132 located in the first sub-section 134a has an eleventh port 134a-5d, which is connected to the third tank 134a-5 via a seventh port 134a-5a; the eleventh port 134a-5d is provided with a second sensor 62, which is also a temperature and pressure sensor to detect the temperature and pressure of the refrigerant entering the low-pressure side 1a-2.

[0122] The following three specific embodiments illustrate the structures of the second groove 134a-4 and the third groove 134a-5 in this application. Any scheme that is the same as or equivalent to the embodiments described below falls within the protection scope of this application. The structures of the second groove 134a-4 and the third groove 134a-5 in the different embodiments described below can be arbitrarily combined, and the combined schemes also fall within the protection scope of this patent.

[0123] In one example, such as Figure 16 As shown, the third tank 134a-5 extends in a straight line along the height direction of the heat exchange component 2, and the second tank 134a-4 extends in an S-shape along the height direction of the heat exchange component 2.

[0124] In another example, such as Figure 17 As shown, unlike the previous example, the second groove 134a-4 extends in an S-shape along the axial direction.

[0125] In the third example, such as Figure 18As shown, the third tank 134a-5 extends in a wavy shape along the height direction of the heat exchange assembly 2. The second tank 134a-4 also extends in a wavy shape along the height direction of the heat exchange assembly 2. Optionally, at least a portion of the wavy third tank 134a-5 and the wavy second tank 134a-4 are conforming to each other. This can shorten the axial distance between the second tank 134a-4 and the third tank 134a-5.

[0126] By adopting these methods, the heat exchange rate between the second tank 134a-4, the third tank 134a-5, the inner cavity 1a, and the liquid storage cavity 134b-1 can be increased.

[0127] In a specific example, the third refrigerant sub-channel 134a-4c is a high-pressure liquid refrigerant with a temperature range of 50℃-70℃, while the fourth refrigerant sub-channel 134a-5c is a low-pressure liquid refrigerant with a temperature range of 0℃-10℃. In this way, heat exchange can occur between the third and fourth refrigerant sub-channels 134a-4c and 134a-5c.

[0128] In any of the foregoing embodiments, the refrigerant refrigeration cycle device includes a first connecting component 51 and a second connecting component 52. The first connecting component 51 includes a plurality of first connecting members 51a, and the second connecting component 52 includes a plurality of second connecting members 52a. Each connecting member includes a connecting rod and a locking device. The connecting rod extends axially, and the locking device locks the connecting rod axially.

[0129] Specifically, the first connecting assembly 51 is used to fix the high-pressure shell section 11, the vortex shell section 12, and the low-pressure shell section 13 axially, and a plurality of first connecting members 51a are distributed around the inner cavity 1a. The second connecting assembly 52 fixes the vortex shell section 12 and the low-pressure shell section 13 axially, and a plurality of second connecting members 52a and some of the first connecting members 51a are arranged around the liquid storage cavity 134b-1.

[0130] In some more specific embodiments, the refrigerant refrigeration cycle device also includes a second sealing structure 42 and a third sealing structure 43. The second sealing structure 42 is disposed on the end face of the stationary scroll housing 121 away from the moving scroll housing 122, that is, between the front end face of the stationary housing and the first connecting plate 11a, and surrounds the inner cavity 1a; the first connecting pieces 51a all pass through the outer side of the second sealing structure 42, which can play a limiting role during installation and also prevent the second sealing structure 42 from radially shifting during use.

[0131] The third sealing structure 43 is disposed between the low-pressure front end face 131 and the moving shell rear end face 122c. Part of the third sealing structure 43 surrounds the inner cavity 1a, and part of the third sealing structure 43 surrounds the recessed cavity 134b-1a. The first connecting member 51a passes through the part of the third sealing structure 43 surrounding the inner cavity 1a, and the second connecting member 52a passes through the part of the third sealing structure 43 surrounding the recessed cavity 134b-1a. The third sealing structure 43 is a one-piece molded structure, which facilitates processing and installation.

[0132] Of course, the first connector 51a passes through the portion of the first sealing structure 41 surrounding the inner cavity 1a, and the second connector 52a passes through the portion of the first sealing structure 41 surrounding the first groove 122b-1.

[0133] This method enables axial locking of each sealing structure, achieving cooling and sealing of the refrigerant refrigeration cycle device in this application.

[0134] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A refrigerant refrigeration cycle device, characterized in that, The compressor housing (1) includes a compressor housing (1) having an inner cavity (1a), the compressor housing (1) being configured with a second refrigerant flow channel, the second refrigerant flow channel including a third refrigerant sub-flow channel (134a-4c) and a fourth refrigerant sub-flow channel (134a-5c) spaced apart, the third refrigerant sub-flow channel (134a-4c) being used to contain high-pressure liquid refrigerant, and the fourth refrigerant sub-flow channel (134a-5c) being used to contain low-pressure liquid refrigerant; The refrigerant located in the third refrigerant sub-channel (134a-4c) can exchange heat with the refrigerant located in the fourth refrigerant sub-channel (134a-5c).

2. The refrigerant refrigeration cycle device according to claim 1, characterized in that, The compressor housing (1) includes a low-pressure housing section (13), which includes a low-pressure pipe housing (133) and a third protrusion (134) connected to the low-pressure pipe housing (133). The third refrigerant sub-channel (134a-4c) and the fourth refrigerant sub-channel (134a-5c) are both located on the third protrusion (134).

3. The refrigerant refrigeration cycle device according to claim 2, characterized in that, The portion of the third protrusion (134) having the third refrigerant sub-channel (134a-4c) and the fourth refrigerant sub-channel (134a-5c) is defined as the first sub-part (134a); The low-pressure shell section (13) further includes a cover plate (135). The first sub-section (134a) has a sub-section outer wall (134a-1). The sub-section outer wall (134a-1) is provided with a second groove (134a-4) and a third groove (134a-5). The cover plate (135) is radially attached to the sub-section outer wall (134a-1). The second groove (134a-4) and part of the cover plate (135) form part of the third refrigerant sub-channel (134a-4c). The third groove (134a-5) and part of the cover plate (135) form part of the fourth refrigerant sub-channel (134a-5c).

4. The refrigerant refrigeration cycle device according to claim 3, characterized in that, The second tank (134a-4) has a fifth opening (134a-4a) and a sixth opening (134a-4b), the fifth opening (134a-4a) and the sixth opening (134a-4b) being located at the two ends of the second tank (134a-4), respectively. The second tank (134a-4) is connected to the liquid storage chamber (134b-1) via the fifth port (134a-4a); the second tank (134a-4) is connected to the evaporation inlet (231d) via the sixth port (134a-4b).

5. The refrigerant refrigeration cycle device according to claim 4, characterized in that, The third tank (134a-5) has a seventh port (134a-5a) and a refrigerant inlet (134a-5b). The seventh port (134a-5a) is located at one end of the third tank (134a-5) in the extension direction of the third tank (134a-5), and the refrigerant inlet (134a-5b) is located at the other end. The seventh port (134a-5a) is used to connect with the evaporation outlet (231c), and the refrigerant inlet (134a-5b) is used to connect with the refrigerant inlet (134a-5b).

6. The refrigerant refrigeration cycle device according to claim 5, characterized in that, The first sub-part (134a) has a first region (134a-2) that extends radially beyond the low-pressure housing (133); The first region (134a-2) is provided with a valve channel (134a-3), which penetrates the first sub-part (134a) and forms a ninth opening (134a-3a) on the outer wall (134a-1) of the sub-part, and a tenth opening (134a-3b) on the inner wall of the sub-part opposite to the outer wall (134a-1). The refrigerant refrigeration cycle device also includes a throttle valve (3), a portion of which is inserted into the valve channel (134a-3) through the tenth port (134a-3b). The throttle valve (3) has a valve inlet and a valve outlet, both of which are located within the valve channel (134a-3). The second tank (134a-4) is connected to the valve inlet of the throttle valve (3) via the sixth port (134a-4b); the valve outlet of the throttle valve (3) is connected to the evaporation inlet (231d) via the ninth port (134a-3a).

7. The refrigerant refrigeration cycle device according to claim 5, characterized in that, The low-pressure shell section (13) further includes a low-pressure rear end face (132); the portion of the low-pressure rear end face (132) located in the first sub-section (134a) has a tenth port (134a-3b), and the tenth port (134a-3b) is connected to the third groove (134a-5) via the seventh port (134a-5a); The tenth port (134a-3b) is equipped with a second sensor (62).

8. The refrigerant refrigeration cycle device according to any one of claims 3-7, characterized in that, The third groove (134a-5) extends in a straight line along the height direction; or, The third groove (134a-5) extends in a wave-like shape along the height direction.

9. The refrigerant refrigeration cycle device according to any one of claims 3-7, characterized in that, The second trough (134a-4) extends in an S-shape, spiraling along the height direction; or, The second groove (134a-4) extends in an S-shape, spiraling along the axial direction of the inner cavity (1a); or, The second trough (134a-4) extends in a wave-like shape along the height direction.

10. The refrigerant refrigeration cycle device according to any one of claims 3-7, characterized in that, At least a portion of the wavy third groove (134a-5) and the wavy second groove (134a-4) are symmetrical.

11. The refrigerant refrigeration cycle device according to any one of claims 4-7, characterized in that, The compressor housing (1) further includes a scroll housing section (12), and the low-pressure housing section (13) has a low-pressure front end face (131), and a portion of the low-pressure front end face (131) is recessed along the axial direction toward the location of the refrigerant inlet (134a-5b) to form a cavity (134b-1a). The vortex shell section (12) has a moving shell rear end face (122c), which abuts against the low-pressure front end face (131) in the axial direction. Part of the moving shell rear end face (122c) and the cavity (134b-1a) together form the liquid storage cavity (134b-1).

12. The refrigerant refrigeration cycle device according to claim 11, characterized in that, Part of the third protrusion (134) and part of the outer wall of the low-pressure shell (133) form the cavity (134b-1a); The portion of the third protrusion (134) that forms the cavity (134b-1a) is defined as the second sub-part (134b); the first sub-part (134a) and the second sub-part (134b) are distributed sequentially along the axial direction.

13. The refrigerant refrigeration cycle device according to claim 12, characterized in that, The fourth refrigerant sub-channel (134a-5c) is located on the side of the third refrigerant sub-channel (134a-4c) away from the second sub-section (134b).

14. A thermal management system, characterized in that, Includes the refrigerant refrigeration cycle device according to any one of claims 1-13.

15. A vehicle, characterized in that, Includes the thermal management system as described in claim 14.

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