A thermal management integrated module

Abstract

The present invention discloses a thermal management integrated module, aiming to solve the deficiencies of the existing thermal management integrated module, such as complex structure, large number of system pipelines, large layout space, large flow resistance, and heavy mass. The invention includes a refrigerant-side valve plate on which a plurality of connecting pipelines are formed, and the refrigerant-side valve plate is configured as a bearing connecting member of the thermal management integrated system; there are at least two mounting ports on the refrigerant-side valve plate, and the two mounting ports are communicated through the connecting pipelines, and thermal management components are arranged in the mounting ports; the present invention highly integrates all components in the thermal management integrated system except the compressor, the front-end module, and the air-conditioning box module through the existing process solutions and assembly methods to develop a thermal management integrated module. Through the internal design of the flow channels of components such as the valve plate and the gas-liquid separator, the purposes of fewer pipelines in the thermal management system, smaller layout space, lower flow resistance, lighter weight, and lower cost are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and more specifically, it relates to a thermal management integrated module. Background Art

[0002] With the increasing popularity of new energy electric vehicles, the research on electric vehicle thermal management has received more and more attention. Compared with the thermal management of traditional fuel vehicles, it is much more complex. The traditional thermal management system includes powertrain thermal management and an air conditioning system. The thermal management of its powertrain is mainly cooling, and it is cooled by oil cooling, water cooling, air cooling and other methods. The air conditioning system is relatively simple. For heating, the waste heat of the engine is introduced into the passenger compartment, and the air conditioning system only needs a single refrigeration mode;

[0003] The current electric vehicle thermal management includes battery thermal management, passenger compartment air conditioning system, motor and electronic control thermal management. Its design needs to meet the heat demand distribution under various working conditions. Therefore, the complexity of its entire thermal management system is relatively high, and the components of thermal management also increase significantly;

[0004] In the prior art, these components are arranged dispersedly or with low integration, resulting in: First, it occupies a large layout space. Second, a large number of pipelines and pressing plates are required to connect between components. A large number of pipelines bring intricate pipelines, difficult layout, increased costs, risks in identification and error prevention, and the distribution of pipelines will cause long flow paths and large flow resistances, increasing the risk of leakage.

[0005] Chinese Patent Publication No. CN211764805U, Publication Date: October 27, 2020. This application discloses a thermal management integrated module, which relates to the technical field of vehicle thermal management. The thermal management integrated module includes a mounting bracket, a heat exchanger and at least one flow distribution component. The heat exchanger and the flow distribution component are both mounted on the mounting bracket; a flow distribution cavity is provided in the mounting bracket, and the heat exchanger and the flow distribution component are respectively communicated with the flow distribution cavity. The flow distribution component is used to divide the coolant after passing through the heat exchanger. This thermal management integrated module has the functions of heat exchange and water flow distribution, with a simple and compact structure, small occupied space and convenient installation. It has the disadvantages of many pipelines, large weight and relatively high cost. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned drawbacks in the prior art and provide a thermal management integrated module, which can achieve the advantages of fewer pipelines, smaller layout space, lower flow resistance, lighter weight and lower cost in the thermal management system.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions: A thermal management integrated module includes a refrigerant side valve plate, on which a plurality of connecting pipelines are formed. The refrigerant side valve plate is configured as a load-bearing connecting member of the thermal management integrated system; there are at least two mounting ports on the refrigerant side valve plate, which are connected through the connecting pipelines, and thermal management components are arranged in the mounting ports.

[0008] The present invention highly integrates all components except the compressor, front-end module, and air-conditioning box module in the thermal management integrated system through existing process schemes and assembly methods to develop a thermal management integrated module. Through the internal design of the flow channels of components such as the refrigerant side valve plate and the gas-liquid separator, the purposes of fewer pipelines, smaller layout space, lower flow resistance, lighter weight, and lower cost in the thermal management system are achieved; the abbreviation of the gas-liquid separator is "gas-liquid separator".

[0009] Preferably, the thermal management components include at least two of the following components: gas-liquid separator, electronic expansion valve, SOV valve, PT sensor, temperature sensor, evaporator (Chiller), water-cooled condenser (LCC). Combining with the schematic diagram of the thermal management system, this thermal management integrated module solution focuses on highly integrating the gas-liquid separator, 3 electronic expansion valves, 4 SOV valves, 2 PT sensors, 2 temperature sensors, 1 chiller, and 1 LCC. Through the internal design of the flow channels of components such as the valve plate and the gas-liquid separator, the purposes of fewer pipelines, smaller layout space, lower flow resistance, lighter weight, and lower cost in the thermal management system are achieved.

[0010] Preferably, the refrigerant side valve plate includes a first refrigerant side valve plate and a second refrigerant side valve plate, which are connected through the connecting pipelines arranged at the back; the first refrigerant side valve plate and the second refrigerant side valve plate are welded to the gas-liquid separator. The refrigerant side valve plate adopts a modular design. The main purposes of the first refrigerant side valve plate and the second refrigerant side valve plate are to achieve heat insulation between high and low temperature regions; since the thermal conductivity of air is relatively low, after filling the space between the two plates with air, natural heat insulation can be achieved between the two plates; at the same time, large-area wire cutting is avoided, reducing the process cost; the refrigerant side valve plate is realized through a forging process, and then through a brazing process, it is welded to the gas-liquid separator, and the connecting pipes at the back realize the connection between the upper and lower plates; the refrigerant side valve plate is connected to the refrigerant side assembly module through an assembly process; the PT sensor is connected to the electronic expansion valve through the connecting pipe welded to the back.

[0011] Preferably, the gas-liquid separator includes an outer cylinder body, an end cover arranged at the end of the outer cylinder body, and a gas-liquid separation component arranged in the outer cylinder body. The upper cover plate and the lower cover plate are arranged at the end of the cylinder body to form a sealed cavity for the outer cylinder body; the gas-liquid separation component is used for gas-liquid separation.

[0012] Preferably, a circular cylinder and a special-shaped cylinder are provided inside the outer cylinder. A vapor-liquid separation chamber is provided inside the circular cylinder, and a special-shaped chamber is provided inside the special-shaped cylinder. One side of the outer wall of the outer cylinder is stepped, and a vapor-liquid mixture inlet and a gas outlet are respectively provided on the stepped outer wall surface. The vapor-liquid mixture inlet is communicated with the vapor-liquid separation chamber, and the gas outlet is communicated with the special-shaped chamber. A vapor-liquid separation component is arranged on the circular cylinder for vapor-liquid separation, and the gap between the component and the outer end cover is used for the communication between the vapor-liquid separation chamber and the special-shaped chamber. The outer cylinder of the vapor-liquid separator is formed by profile stretching; the vapor-liquid separator is integrally formed by planar welding with the agent-side valve plate; the inside of the vapor-liquid separation chamber is divided into two chambers, which are independent of each other, and the purpose of the vapor-liquid separation chamber is vapor-liquid separation and liquid storage, and the special-shaped chamber is the outlet flow channel for the separated gas.

[0013] Preferably, there is a certain height difference between the circular cylinder and the special-shaped cylinder. This structure mills a certain height difference between the circular cylinder and the special-shaped cylinder through a precision machining process; the purpose is to form a chamber required for changing the gas outlet direction.

[0014] Preferably, the vapor-liquid separation component includes an inner cylinder cover arranged at the end of the circular cylinder, an umbrella cap and a return air pipe arranged in the vapor-liquid separation chamber. Both the umbrella cap and the return air pipe are connected to the inner cylinder cover. The umbrella cap has an umbrella-shaped structure, and an umbrella opening facing the vapor-liquid mixture inlet is provided on the umbrella cap. The return air pipe enables the gas separated from the vapor-liquid separation chamber to be communicated with the special-shaped chamber. An air outlet pipe for communicating the vapor-liquid separation chamber with the special-shaped cavity is fixedly arranged on the inner cylinder cover. The air outlet pipe in the vapor-liquid separation chamber is connected with the umbrella cap and is integrally welded and assembled to the circular cylinder; the two phases in the vapor-liquid separation chamber impact the umbrella cap at the inlet. Due to the difference in density, the gas can be considered to have a very small mass and can be ignored, having only velocity and no momentum, while the liquid has both velocity and momentum. After the impact, the momentum of the liquid becomes zero and it flows along the wall surface, and the gas enters the special-shaped chamber through the return pipe and flows out of the vapor-liquid separator.

[0015] Preferably, the return air pipe includes a U-shaped pipe and a connecting pipe. The connecting pipe is fixedly connected to the inner cylinder cover, and the gas enters the special-shaped chamber through the U-shaped pipe inlet and flows out of the vapor-liquid separator.

[0016] Preferably, a compressor outlet is provided on the agent-side valve plate. The compressor outlet is connected to a water-cooled condenser. The water-cooled condenser is respectively connected to SOV valve 1 and SOV valve 2. SOV valve 1 is connected to the inlet of the outdoor heat exchanger; SOV valve 2 is connected to the inlet of the indoor condenser. When considering the layout of the flow channels on the agent-side valve plate, both compactness and hot and cold zone design should be considered, such as Figure 9 , Figure 9 In the working process of the system, most of the described process is in the high-temperature and high-pressure region (high temperature and high pressure at the inlet of the outdoor heat exchanger under the refrigeration condition, and low temperature and low pressure under the heat pump condition).

[0017] Preferably, an outdoor heat exchanger outlet is also provided on the agent side valve plate. The outdoor heat exchanger outlet is respectively connected to SOV valve three and SOV valve four. SOV valve three is connected to the inlet of the gas-liquid separator; SOV valve four is connected to the PT2 temperature and pressure sensor; the PT2 temperature and pressure sensor is respectively connected to the first electronic expansion valve, the second electronic expansion valve, the third electronic expansion valve and the outlet of the indoor condenser; the first electronic expansion valve is connected to the inlet of the outdoor heat exchanger; the second electronic expansion valve is connected to the evaporator of the air handling unit; the third electronic expansion valve is connected to the chiller. When considering the compactness of the flow path layout on the agent side valve plate, the design of cold and heat zoning should also be considered. For example Figure 10 , Figure 10 the above process is in the medium temperature or low temperature condition under different working condition switches; therefore, the design of large-area cold and heat zones is realized through two valve plates. Considering factors such as the weight and vibration of the two valve plates, the first expansion valve is arranged on the refrigerant side valve plate two, and the PT2 temperature and pressure sensor is connected to the first expansion valve through an externally welded connecting pipe; there are installation ports on both the upper and lower plates, which can be adjusted according to the specific position and are not limited by the current position.

[0018] Compared with the prior art, the beneficial effects of the present invention are: (1) By highly integrating the agent side valve plate, gas-liquid separator, plate heat exchanger, and PT sensor, the present invention can achieve the purposes of fewer system pipelines, smaller layout space, lower flow resistance, lighter weight, and lower cost while ensuring the realization of each function; (2) The agent side valve plate adopts a modular design, which can achieve heat insulation, avoid large-area wire cutting, and reduce the process cost; (3) The gas-liquid separator adopts multiple chambers, which can meet various installation requirements and switches in different positions, and has strong versatility; (4) The external interface connection positions are concentrated, which is beneficial to the design and installation of the pipeline layout; (5) The installation orientations of all valve parts, PT sensors, etc. are consistent, which is beneficial to the later industrial realization. Description of the Drawings

[0019] Figure 1 is an axonometric schematic diagram of a thermal management integration module of the present invention;

[0020] Figure 2 is an exploded view of a thermal management integration module of the present invention;

[0021] Figure 3 is a front view of a thermal management integration module of the present invention;

[0022] Figure 4 is a rear view of a thermal management integration module of the present invention;

[0023] Figure 5 is a structural schematic diagram of the combination of the agent side valve plate and the gas-liquid separator of the present invention;

[0024] Figure 6 is an axonometric schematic diagram of the gas-liquid separator of the present invention;

[0025] Figure 7 is the explosion diagram of the vapor-liquid separator of the present invention;

[0026] Figure 8 is the structural schematic diagram of the outer cylinder of the present invention;

[0027] Figure 9 is the flow chart under operating condition 1 in Embodiment 1 of the present invention;

[0028] Figure 10 is the flow chart under operating condition 2 in Embodiment 1 of the present invention;

[0029] In the figure: agent-side valve plate 1; outdoor heat exchanger outlet 101; indoor condenser outlet 102; indoor evaporator inlet 103; indoor evaporator outlet 104; compressor inlet 105; compressor outlet 106; outdoor heat exchanger inlet 107; indoor condenser inlet 108; refrigerant-side valve plate one 2; refrigerant-side valve plate two 3; vapor-liquid separator 4; outer cylinder 401; end cover 402; vapor-liquid separation assembly 403; circular cylinder 404; special-shaped cylinder 405; vapor-liquid separation cavity 406; special-shaped cavity 407; vapor-liquid combined inlet 408; gas outlet 409; inner cylinder cover 410; umbrella cap 411; return air pipe 412; umbrella opening 413; U-shaped pipe 414; connecting pipe 415; electronic expansion valve one 5; electronic expansion valve two 6; electronic expansion valve three 7; SOV valve one 8; SOV valve two 9; SOV valve three 10; SOV valve four 11; low-pressure PT1 sensor 12; low-pressure PT2 sensor 13; high-pressure PT1 sensor 14; high-pressure PT2 sensor 15; evaporator (Chiller) 16; water-cooled condenser 17. Detailed implementation manners

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The technical solutions of the present invention will be further specifically described below through specific embodiments in conjunction with the drawings:

[0032] A thermal management integrated module, see the attached Figures 1-5 , including an agent-side valve plate 1, multiple connecting pipelines are formed on the agent-side valve plate 1, and the agent-side valve plate 1 is configured as a bearing connecting member of the thermal management integrated system; the agent-side valve plate 1 includes a refrigerant-side valve plate one 2 and a refrigerant-side valve plate two 3, the refrigerant-side valve plate one 2 and the refrigerant-side valve plate two 3 are connected by welding and are communicated through connecting pipelines at the back; there are at least two installation ports on the agent-side valve plate 1, the two installation ports are communicated through connecting pipelines, and thermal management components are arranged in the installation ports. The thermal management components include at least two of the following components: vapor-liquid separator, electronic expansion valve, SOV valve, PT sensor, evaporator (Chiller), water-cooled condenser (LCC).

[0033] Embodiment 1: Refer to the appendix Figures 1-8 , in the heat management integration module solution of the present invention, 1 gas-liquid separator 4, 3 electronic expansion valves (i.e., electronic expansion valve 1 5, electronic expansion valve 2 6, and electronic expansion valve 3 7), 4 SOV valves (i.e., SOV valve 1 8, SOV valve 2 9, SOV valve 3 10, and SOV valve 4 11), 2 low-pressure PT sensors (low-pressure PT1 sensor 12 and low-pressure PT2 sensor 13), 2 high-pressure PT sensors (high-pressure PT1 sensor 14 and high-pressure PT2 sensor 15), 1 evaporator (Chiller) 16, 1 water-cooled condenser 17 (LCC), etc. are highly integrated together; among them, refrigerant-side valve plate 1 and refrigerant-side valve plate 2 are both welded to the gas-liquid separator 4; the evaporator 16 (Chiller) and the water-cooled condenser 17 (LCC) are respectively installed on the refrigerant-side valve plate 1 and the refrigerant-side valve plate 2 by means of assembly, and are fixed to each other by tightening. The agent-side valve plate 1 adopts a modular design, which can achieve heat insulation, avoid large-area wire cutting, and reduce the process cost; the agent-side valve plate 1 is realized by a forging process, and then through a brazing process, it is welded to the gas-liquid separator 4, and the connecting pipes behind realize the connection between the upper and lower plates; the agent-side valve plate 1 is connected to the agent-side assembly module by an assembly process.

[0034] Refer to the appendix Figures 1-5 , on the refrigerant-side valve plate 1, the SOV valve 3 10, the SOV valve 4 11, the electronic expansion valve 3 7, and the electronic expansion valve 2 6 are installed in sequence from left to right. The high-pressure PT2 sensor 15 is provided at the lower side position between the SOV valve 4 11 and the electronic expansion valve 3 7, and the low-pressure PT1 sensor 12 is provided on the right side of the electronic expansion valve 2 6. The evaporator 16 (Chiller) is installed on the upper side of the refrigerant-side valve plate 1; the outdoor heat exchanger outlet 101 is provided at the lower side of the refrigerant-side valve plate 1 between the SOV valve 3 10 and the SOV valve 4 11, and the indoor condenser outlet 102, the indoor evaporator inlet 103, and the indoor evaporator outlet 104 are provided in sequence from left to right on the refrigerant-side valve plate 1 below the electronic expansion valve 2 6.

[0035] Refer to the appendix Figures 1-5, on the refrigerant side valve plate two 3, an electronic expansion valve one 5, an SOV valve one 8, and an SOV valve two 9 are installed in sequence from left to right. The water-cooled condenser 17 (LCC) is installed on the lower side of the refrigerant side valve plate two 3. A low-pressure PT2 sensor 13 and a high-pressure PT1 sensor 14 are sequentially arranged between the gas-liquid separator 4 and the water-cooled condenser 17 (LCC) from left to right; the compressor inlet 105 is provided above the low-pressure PT2 sensor 13, the compressor outlet 106 is provided above the high-pressure PT1 sensor 14, and the indoor condenser inlet 108 is provided above the refrigerant side valve plate two 3 between the SOV valve one 8 and the SOV valve two 9. The high-pressure PT2 sensor 15 is connected to the electronic expansion valve one 5 through a connecting pipeline welded to the back. The indoor condenser inlet 108 is provided on the right side of the refrigerant side valve plate two 3.

[0036] In the present invention, all components except the compressor, the front-end module, and the air-conditioning box module in the thermal management integrated system are highly integrated together through existing process schemes and assembly methods to develop a thermal management integrated module. Through the internal design of the flow channels of components such as the refrigerant side valve plate and the gas-liquid separator, the purposes of fewer pipelines, smaller layout space, lower flow resistance, lighter weight, and lower cost in the thermal management system are achieved; the gas-liquid separator 4 is simply referred to as "gas separation".

[0037] See the appendix Figure 1 See the appendix Figures 6-8The vapor-liquid separator 4 includes an outer cylinder body 401, an end cover 402 arranged at the end of the outer cylinder body 401, and a vapor-liquid separation component 403 arranged inside the outer cylinder. There are an upper cover plate and a lower cover plate at the end of the outer cylinder body, so that the outer cylinder body forms a sealed cavity; the vapor-liquid separation component 403 is used for vapor-liquid separation. A circular cylinder 404 and a special-shaped cylinder 405 are arranged inside the outer cylinder body 401. A vapor-liquid separation cavity 406 is arranged inside the circular cylinder 404, and a special-shaped cavity 407 is arranged inside the special-shaped cylinder 405. One side of the outer wall of the outer cylinder is stepped. A vapor-liquid mixture inlet 408 and a gas outlet 409 are respectively arranged on the stepped L-shaped outer wall surface. The vapor-liquid mixture inlet is communicated with the vapor-liquid separation cavity, and the gas outlet is communicated with the special-shaped cavity. The vapor-liquid separation component is arranged on the circular cylinder for vapor-liquid separation, and the gap between the component and the outer end cover is used for the communication between the vapor-liquid separation cavity and the special-shaped cavity. The outer cylinder body of the vapor-liquid separator is formed by the method of profile stretching; the vapor-liquid separator 4 is integrally formed by flat welding with the agent-side valve plate 1; the interior is divided into two chambers, which are independent of each other, and the purpose of the vapor-liquid separation cavity is vapor-liquid separation and liquid storage, and the special-shaped cavity is the outlet flow channel for the separated gas. There is a certain height difference between the circular cylinder and the special-shaped cylinder. This structure mills out a certain height difference between the circular cylinder and the special-shaped cylinder through a precision machining process; the purpose is to form a chamber required for changing the gas outlet direction. The vapor-liquid separation component 403 includes an inner cylinder cover 410 arranged at the end of the circular cylinder, a canopy 411 arranged in the vapor-liquid separation cavity, and a return air pipe 412. Both the canopy and the return air pipe are connected to the inner cylinder cover. The canopy is in an umbrella-shaped structure, and an umbrella opening 413 with an opening direction facing the vapor-liquid mixture inlet is arranged on the canopy. The return air pipe communicates the vapor-liquid mixture inlet with the special-shaped cavity. The end cover of the inner cylinder cover fixes the outlet pipe and the canopy, and the whole is welded and assembled to the inner cylinder cover; the two phases in the vapor-liquid separation cavity impact the canopy at the inlet. Due to the difference in density, the gas can be considered to have a very small mass and can be ignored, only having speed and no momentum, while the liquid has both speed and momentum. After the impact, the momentum of the liquid is zero and it flows along the wall surface, and the gas enters the special-shaped cavity through the return pipe and flows out of the vapor-liquid separator. The return air pipe 412 includes a U-shaped pipe 414 and a connecting pipe 415. The connecting pipe is fixedly connected to the inner cylinder cover, and the gas enters the special-shaped cavity through the U-shaped pipe inlet and flows out of the vapor-liquid separator.

[0038] See Appendix Figures 9-10 , Condition 1, when arranging the flow channels on the agent-side valve plate, while considering compactness, the design of cold and heat zoning should also be considered. The outlet of the compressor is connected to the water-cooled condenser, and the water-cooled condenser is respectively connected to SOV valve 1 and SOV valve 2. SOV valve 1 is connected to the inlet of the outdoor heat exchanger; SOV valve 2 is connected to the inlet of the indoor condenser. In the above process during the operation of the system, most are in the high-temperature and high-pressure region (high temperature and high pressure at the inlet of the outdoor heat exchanger under the refrigeration condition, low temperature and low pressure under the heat pump condition).

[0039] See Appendix Figures 9-10, Under operating condition two, while considering the compactness of the flow path arrangement on the agent side valve plate, the cold and heat zoning design should also be considered. There is also an outdoor heat exchanger outlet on the agent side valve plate. The outdoor heat exchanger outlet is respectively connected to SOV valve three and SOV valve four. SOV valve three is connected to the inlet of the gas-liquid separator; SOV valve four is connected to the PT2 temperature and pressure sensor; the PT2 temperature and pressure sensor is respectively connected to the inlet of the electronic expansion valve one, the electronic expansion valve two, the electronic expansion valve three and the outlet of the indoor condenser; the electronic expansion valve one is connected to the inlet of the outdoor heat exchanger; the electronic expansion valve two is sequentially connected to the air handling unit evaporator and the gas-liquid separator, and the electronic expansion valve three is sequentially connected to the evaporator (Chiller) and the gas-liquid separator. The above process is in the medium temperature or low temperature condition under different operating condition switches; therefore, the large-area cold and heat zone design is realized through two valve plates. Considering factors such as the weight and vibration of the two valve plates, the expansion valve one is arranged on the refrigerant side valve plate two, and the PT2 temperature and pressure sensor is connected to the expansion valve one through an externally welded connecting pipe; there are installation ports on both the upper and lower plates, which can be adjusted according to the specific position and are not restricted by the current position.

[0040] The above-described embodiments are only preferred solutions of the present invention and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions recorded in the claims.

Claims

1. A thermal management integrated module, characterized in that, It includes a reagent-side valve plate, on which a plurality of connecting pipelines are formed. The reagent-side valve plate is configured as a load-bearing connecting member of the thermal management integrated system; there are at least two mounting ports on the reagent-side valve plate, which are connected through the connecting pipelines, and thermal management components are arranged in the mounting ports; The reagent-side valve plate includes a refrigerant-side valve plate 1 and a refrigerant-side valve plate 2, and the backs of the refrigerant-side valve plate 1 and the refrigerant-side valve plate 2 are connected through the connecting pipelines; The reagent-side valve plate is connected with a gas-liquid separator; On the refrigerant-side valve plate 2, there are an electronic expansion valve 1, an SOV valve 1, an SOV valve 2, a water-cooled condenser, a compressor outlet, an outdoor heat exchanger inlet, and an indoor condenser inlet; the compressor outlet is connected to the water-cooled condenser, the water-cooled condenser is respectively connected to the SOV valve 1 and the SOV valve 2, the SOV valve 1 is connected to the outdoor heat exchanger inlet; the SOV valve 2 is connected to the indoor condenser inlet; On the refrigerant-side valve plate 1, there are an electronic expansion valve 2, an electronic expansion valve 3, an SOV valve 3, an SOV valve 4, an evaporator, a PT2 temperature and pressure sensor, an outdoor heat exchanger outlet, and an indoor condenser outlet; the outdoor heat exchanger outlet is respectively connected to the SOV valve 3 and the SOV valve 4, the SOV valve 3 is connected to the gas-liquid separator inlet; the SOV valve 4 is connected to the PT2 temperature and pressure sensor; the PT2 temperature and pressure sensor is respectively connected to the electronic expansion valve 1, the electronic expansion valve 2, the electronic expansion valve 3 and the indoor condenser outlet; the electronic expansion valve 1 is connected to the outdoor heat exchanger inlet; the electronic expansion valve 2 is sequentially connected to the evaporator and the gas-liquid separator; the electronic expansion valve 3 is sequentially connected to the water-cooled condenser and the gas-liquid separator.

2. The thermal management integrated module according to claim 1, characterized in that, The refrigerant-side valve plate 1 and the refrigerant-side valve plate 2 are welded to the gas-liquid separator.

3. The thermal management integrated module according to claim 1, characterized in that The gas-liquid separator includes an outer cylinder body, an end cover arranged at the end of the outer cylinder body, and a gas-liquid separation component arranged in the outer cylinder body.

4. The thermal management integration module according to claim 3, characterized in that, Inside the outer cylinder body, there are a circular cylinder body and a special-shaped cylinder body. Inside the circular cylinder body, there is a gas-liquid separation cavity, and inside the special-shaped cylinder body, there is a different-side cavity. One side of the outer wall of the outer cylinder body is in a stepped shape, and a gas-liquid mixture inlet and a gas outlet are respectively arranged on the stepped outer wall surface. The gas-liquid mixture inlet is communicated with the different-side cavity, and the gas outlet is communicated with the gas-liquid separation cavity. The gas-liquid separation component is arranged on the circular cylinder body for communicating the gas-liquid separation cavity and the different-side cavity.

5. The thermal management integration module according to claim 4, characterized in that, There is a certain height difference between the circular cylinder body and the special-shaped cylinder body.

6. The thermal management integration module according to claim 5, characterized in that, The gas-liquid separation component includes an inner cylinder body arranged at the end of the circular cylinder body, an umbrella cap and a return air pipe arranged in the gas-liquid separation cavity. The umbrella cap and the return air pipe are both connected to the inner cylinder body. The umbrella cap is in an umbrella-shaped structure, and there is an umbrella opening on the umbrella cap with an opening direction towards the gas-liquid mixture inlet. The return air pipe makes the gas-liquid mixture inlet communicate with the different-side cavity.

7. The thermal management integrated module according to claim 6, characterized in that, The return air pipe includes a U-shaped pipe and a connecting pipe.

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