Automobile thermal management system, control method and vehicle

Abstract

The present application relates to an automotive thermal management system, comprising: a valve island, a battery cooler assembly, and a thermal management integrated component. The valve island comprises a first expansion valve and a second expansion valve arranged in parallel, the first expansion valve and the second expansion valve being connected in series with a third expansion valve, a first temperature and pressure sensor being provided at the connection between the third expansion valve, the first expansion valve, and the second expansion valve, wherein the first expansion valve is connected in series with an evaporator, and the second expansion valve is connected in series with a built-in condenser. The air inlet of the thermal management integrated component is connected to the valve island. By providing a first temperature and pressure sensor at the connection between the first, second, and third expansion valves in the valve island, the first temperature and pressure sensor is used to monitor the temperature and pressure of the refrigerant in the valve island under different operating modes, thereby reducing the number of sensors used. This solves the problem of the automotive thermal management system in the related art being bulky and having a low degree of integration, which results in long connecting pipes between various electrical components and reduces the heat exchange efficiency of the automotive thermal management system.

Description

Technical Field

[0001] The present application relates to the field of automotive thermal management technology, and in particular to an automotive thermal management system, a control method, and a vehicle. Background Art

[0002] With the continuous development of new energy vehicles, automotive thermal management systems are becoming increasingly important. Automotive thermal management systems are an important guarantee for vehicle driving safety, efficiency and comfort.

[0003] In related technologies, the automotive thermal management system has many pipelines, and each pipeline is installed with a corresponding sensor, which makes the automotive thermal management system relatively large and has a low degree of integration. In addition, the connecting pipelines between various electrical components are long, which reduces the heat exchange efficiency of the automotive thermal management system.

[0004] Therefore, it is necessary to design a new automotive thermal management system to overcome the above problems. Summary of the Invention

[0005] The present application provides an automobile thermal management system, a control method, and a vehicle, which can solve the technical problems in related technologies such as the automobile thermal management system being relatively large in size, having a low degree of integration, and having long connecting pipes between various electrical components, thereby reducing the heat exchange efficiency of the automobile thermal management system.

[0006] In the first aspect, an embodiment of the present application provides an automotive thermal management system, which includes: a valve island, a battery cooler assembly and a thermal management integrated component, the valve island includes a first expansion valve and a second expansion valve arranged in parallel, the first expansion valve and the second expansion valve are connected in series with a third expansion valve, and a first temperature and pressure sensor is provided at the connection between the third expansion valve and the first expansion valve and the second expansion valve, wherein the first expansion valve is connected in series with an evaporator, and the second expansion valve is connected in series with a built-in condenser; the battery cooler assembly includes a battery cooler and a fourth expansion valve connected in series, and the fourth expansion valve is connected to the valve island through a first pipeline; the air inlet of the thermal management integrated component is connected to the valve island, and the air inlet of the thermal management integrated component is also connected to the battery cooler assembly, a compressor is connected in series between one side of the thermal management integrated component and the valve island, and a heat exchanger is connected in series between the other side of the thermal management integrated component and the valve island.

[0007] Among them, the first expansion valve and the second expansion valve are controlled on and off by the third expansion valve, the evaporator is controlled on and off and flow regulation is performed by the first expansion valve, the built-in condenser is controlled on and off and flow regulation is performed by the second expansion valve, and the battery cooler is controlled on and off and flow regulation is performed by the fourth expansion valve. The valve island and the battery cooler assembly can be arranged in parallel or in series. The first temperature and pressure sensor is arranged at the connection between the third expansion valve and the first expansion valve and the second expansion valve, so that a temperature and pressure sensor monitors the temperature and pressure of the refrigerant in the valve island under different working modes, reducing the number of sensors used. The battery cooler assembly can be integrated with the valve island or arranged in a dispersed manner according to the layout to improve the flexibility of the layout. The thermal management integrated component reduces the number of connecting pipes used by integrating each valve with the internal components. The thermal management integrated component is arranged at a position close to the compressor to reduce the length of the connecting pipe.

[0008] In combination with the first aspect, in one embodiment, the valve island also includes a base, a first flow channel is provided in the base, the first expansion valve, the second expansion valve and the third expansion valve are all fixed to the base, and the first expansion valve, the second expansion valve and the third expansion valve are connected through the first flow channel of the base, and the first temperature and pressure sensor is arranged at the intersection of the first flow channel.

[0009] Wherein, the first expansion valve is arranged above the base, and the second expansion valve and the third expansion valve are arranged on both sides of the base. Figure 4-6 As shown, the base is provided with a first interface at a position corresponding to the first expansion valve, and the first expansion valve is plugged into the base through the first interface, the base is provided with a second interface at a position corresponding to the second expansion valve, and the second expansion valve is plugged into the base through the second interface, the base is provided with a third interface at a position corresponding to the third expansion valve, and the third expansion valve is plugged into the base through the third interface, the first interface, the second interface and the third interface are connected through the first flow channel, so that the pipelines between the first expansion valve, the second expansion valve and the third expansion valve are integrated, the pipeline setting between the first expansion valve, the second expansion valve and the third expansion valve is reduced, the length of the refrigerant flow channel is minimized, and the air-conditioning performance is improved, the first temperature and pressure sensor is plugged into the intersection of the first flow channel to monitor the temperature and pressure of the refrigerant in the valve island under different working modes.

[0010] In combination with the first aspect, in one embodiment, the thermal management integrated component includes a gas-liquid separator, the air inlet of the gas-liquid separator is connected to the battery cooler through the first pipeline, the first pipeline is provided with a fifth expansion valve, and the air outlet of the gas-liquid separator is connected to the compressor and the heat exchanger through a second pipeline, and the second pipeline is provided with a water-cooled condenser and a sixth expansion valve.

[0011] Among them, the fifth expansion valve controls the on-off of the first pipeline, the sixth expansion valve controls the on-off of the second pipeline, the second pipeline is also connected to the third pipeline, and the third pipeline is provided with the built-in condenser. When the compressor is in cooling mode, the fifth expansion valve and the sixth expansion valve are opened, and the valve island and the battery cooler are respectively connected to the gas-liquid separator through the first pipeline. When the compressor is in heating mode, the fifth expansion valve and the sixth expansion valve are closed, and the valve island and the gas-liquid separator are connected through the third pipeline.

[0012] In combination with the first aspect, in one embodiment, the gas-liquid separator is further connected to the heat exchanger via a stop valve, and the stop valve is connected in parallel with the sixth expansion valve.

[0013] The gas-liquid separator is also connected to the heat exchanger through the stop valve to switch between different working modes. When the compressor is in cooling mode, the stop valve is closed, and when the compressor is in heating mode, the stop valve is opened.

[0014] In combination with the first aspect, in one embodiment, a second temperature and pressure sensor is provided at the air inlet of the gas-liquid separator.

[0015] The second temperature and pressure sensor is arranged at the air inlet of the gas-liquid separator, so that one temperature and pressure sensor can monitor the temperature and pressure of the refrigerant in the thermal management integrated component under different working modes, thereby reducing the number of sensors used.

[0016] In combination with the first aspect, in one embodiment, the gas-liquid separator and the compressor are further connected in series with a seventh expansion valve, the air inlet of the seventh expansion valve is connected between the compressor and the water-cooled condenser, and the air outlet of the seventh expansion valve is connected between the fifth expansion valve and the gas-liquid separator.

[0017] When the compressor is in the process of temperature rise, the seventh expansion valve is opened, and the compressor and the gas-liquid separator form a series circuit, so that the compressor can quickly rise in temperature.

[0018] In combination with the first aspect, in one embodiment, the thermal management integrated component also includes a flow channel plate assembly, the flow channel plate assembly is provided with a second flow channel, the gas-liquid separator, the fifth expansion valve and the sixth expansion valve are all fixed to the flow channel plate assembly, and the gas-liquid separator is connected to the fifth expansion valve and the sixth expansion valve through the second flow channel of the flow channel plate assembly.

[0019] Wherein, the flow channel plate assembly includes a flow channel plate and a support plate, the flow channel plate and the support plate are welded to form a whole, the support plate is fixed to the gas-liquid separator, and is communicated with the air inlet of the gas-liquid separator, the flow channel plate is provided with a fourth interface corresponding to the position of the fifth expansion valve, the fifth expansion valve is plugged into the flow channel plate through the fourth interface, the flow channel plate is provided with a fifth interface corresponding to the position of the sixth expansion valve, the sixth expansion valve is plugged into the flow channel plate through the fifth interface, the gas-liquid separator, the fifth expansion valve and the sixth expansion valve are integrated together through the flow channel plate, and the flow channel plate is provided with a second flow channel which is communicated with each other. The second flow channel connects the air inlet and the air outlet of the gas-liquid separator and the fourth interface and the fifth interface, thereby reducing the number of pipelines used between the gas-liquid separator, the fifth expansion valve and the sixth expansion valve and the connection length of the pipelines between the gas-liquid separator, the fifth expansion valve and the sixth expansion valve, reducing the flow resistance of the air-conditioning system and improving the air-conditioning efficiency. The stop valve and the seventh expansion valve are both plugged into the flow channel plate, so that the stop valve and the seventh expansion valve are integrated with the gas-liquid separator, the fifth expansion valve and the sixth expansion valve, reducing the number of pipelines used between the valves and the connection length of the pipelines.

[0020] In a second aspect, an embodiment of the present application provides a control method for an automotive thermal management system, the control method comprising the following steps: when the battery needs cooling, controlling the compressor, the first expansion valve, the third expansion valve and the fourth expansion valve to open, and controlling the second expansion valve to close, so that the thermal management integrated component is connected to the evaporator and the battery cooler.

[0021] Among them, when the battery needs to be cooled, the compressor outputs high-temperature and high-pressure refrigerant, and the refrigerant output by the compressor enters the heat exchanger through the water-cooled condenser, and exchanges heat with the outside air in the heat exchanger, condensing the gaseous refrigerant into hydraulic refrigerant, and then enters the gas-liquid separator through the valve island and the battery cooler assembly respectively, and finally flows back to the compressor, wherein the first expansion valve, the third expansion valve and the fourth expansion valve are opened, and the second expansion valve is closed, the heat exchanger is connected to the evaporator and the battery cooler, the liquid refrigerant passes through the heat exchanger and the battery cooler, and is vaporized and absorbs heat in the heat exchanger and the battery cooler to cool the vehicle's battery, and the gaseous refrigerant flows back to the gas-liquid separator.

[0022] In combination with the second aspect, in one embodiment, the control method further includes the following steps: when the battery needs to be heated, controlling the second expansion valve and the third expansion valve to open, and controlling the first expansion valve and the fourth expansion valve to close, so that the thermal management integrated component is connected to the built-in condenser.

[0023] Among them, when the battery needs to be heated, the compressor outputs high-temperature and high-pressure refrigerant, and the refrigerant output by the compressor enters the built-in condenser through the water-cooled condenser, and then flows back to the compressor through the heat exchanger and the gas-liquid separator, wherein the second expansion valve and the third expansion valve are opened, and the first expansion valve and the fourth expansion valve are closed, and the heat exchanger is connected to the built-in condenser, and the refrigerant with higher temperature is first heat-exchanged through the water-cooled condenser, and the heat exchanged enters the battery to heat the battery, and then heat-exchanged through the built-in condenser, and then the heat-exchanged liquefied refrigerant is vaporized through the heat exchanger, and finally the gaseous refrigerant flows back to the gas-liquid separator through the shut-off valve.

[0024] In a third aspect, an embodiment of the present application provides a vehicle comprising the above-mentioned automotive thermal management system.

[0025] Among them, the vehicle adopts the automotive thermal management system, and the first temperature and pressure sensor is arranged at the connection between the third expansion valve and the first expansion valve and the second expansion valve, so that one temperature and pressure sensor can monitor the temperature and pressure of the refrigerant in different working modes, reducing the number of sensors used. The battery cooler assembly can be integrated with the valve island or arranged in a dispersed manner according to the layout to improve the flexibility of the layout. The thermal management integrated component is arranged near the compressor to reduce the number of connecting pipes.

[0026] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0027] By arranging a first temperature and pressure sensor at the connection between the first expansion valve, the second expansion valve and the third expansion valve in the valve island, the first temperature and pressure sensor is used to monitor the temperature and pressure of the refrigerant in the valve island under different working modes, thereby reducing the number of sensors used. By arranging a thermal management integrated component on one side of the compressor, the number of connecting pipes used is reduced, thereby solving the problem of the automobile thermal management system in the related technology being relatively large in size and low in integration, which results in longer connecting pipes between various electrical components and reduces the heat exchange efficiency of the automobile thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 A schematic diagram of the principle of an automotive thermal management system provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the structure of the valve island provided in an embodiment of the present application;

[0031] Figure 3 An exploded view of the valve island provided in an embodiment of the present application;

[0032] Figure 4 A top view of the valve island provided in an embodiment of the present application;

[0033] Figure 5 for Figure 4 AA section view in;

[0034] Figure 6 for Figure 4 BB cross-sectional view in;

[0035] Figure 7 A schematic diagram of the structure of the thermal management integrated assembly provided in an embodiment of the present application;

[0036] Figure 8 An exploded diagram of a thermal management integrated assembly provided in an embodiment of the present application;

[0037] Figure 9 A schematic structural diagram of the flow channel plate assembly provided in an embodiment of the present application;

[0038] Figure 10 This is a front view of the flow channel plate assembly provided in an embodiment of the present application.

[0039] In the figure: 1. Valve island; 11. First expansion valve; 12. Second expansion valve; 13. Third expansion valve; 14. First temperature and pressure sensor; 15. Base; 2. Evaporator; 3. Built-in condenser; 4. Battery cooler assembly; 41. Battery cooler; 42. Fourth expansion valve; 5. Thermal management integrated component; 51. Gas-liquid separator; 52. Fifth expansion valve; 53. Sixth expansion valve; 54. Stop valve; 55. Second temperature and pressure sensor; 56. Seventh expansion valve; 57. Flow channel plate assembly; 571. Flow channel plate; 572. Support plate; 6. Compressor; 7. Heat exchanger; 8. Water-cooled condenser. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] The embodiments of the present application provide an automotive thermal management system, a control method, and a vehicle, which can solve the technical problems that the automotive thermal management system is relatively large in size, has a low degree of integration, and has long connecting pipes between various electrical components, which reduces the heat exchange efficiency of the automotive thermal management system.

[0042] See also Figure 1 As shown, an embodiment of the present application provides an automobile thermal management system, which includes: a valve island 1, a battery cooler assembly 4 and a thermal management integrated component 5, the valve island 1 includes a first expansion valve 11 and a second expansion valve 12 arranged in parallel, the first expansion valve 11 and the second expansion valve 12 are connected in series with a third expansion valve 13, and a first temperature and pressure sensor 14 is provided at the connection between the third expansion valve 13 and the first expansion valve 11 and the second expansion valve 12, wherein the first expansion valve 11 is connected in series with an evaporator 2, and the second expansion valve 12 is connected in series with a built-in condenser 3; the battery cooler assembly 4 includes a battery cooler 41 and a fourth expansion valve 42 connected in series, and the fourth expansion valve 42 is connected to the valve island 1 through a first pipeline; the air inlet of the thermal management integrated component 5 is connected to the valve island 1, and the air inlet of the thermal management integrated component 5 is also connected to the battery cooler assembly 4, a compressor 6 is connected in series between one side of the thermal management integrated component 5 and the valve island 1, and a heat exchanger 7 is connected in series between the other side of the thermal management integrated component 5 and the valve island 1.

[0043] In this embodiment, the first expansion valve 11 and the second expansion valve 12 are controlled on and off by the third expansion valve 13, the evaporator 2 is controlled on and off and flow regulation is performed by the first expansion valve 11, the built-in condenser 3 is controlled on and off and flow regulation is performed by the second expansion valve 12, and the battery cooler 41 is controlled on and off and flow regulation is performed by the fourth expansion valve 42. The valve island 1 and the battery cooler assembly 4 can be arranged in parallel or in series. The first temperature and pressure sensor 14 is arranged at the connection between the third expansion valve 13 and the first expansion valve 11 and the second expansion valve 12, so that one temperature and pressure sensor monitors the temperature and pressure of the refrigerant in the valve island 1 under different working modes, reducing the number of sensors used. The battery cooler assembly 4 can be integrated or dispersed with the valve island 1 according to the layout situation to improve the flexibility of the layout. The thermal management integrated component 5 reduces the number of connecting pipelines used by integrating each valve with the internal components. The thermal management integrated component 5 is arranged at a position close to the compressor 6 to reduce the length of the connecting pipeline.

[0044] This embodiment arranges the first temperature and pressure sensor 14 at the connection between the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13 in the valve island 1, and utilizes the first temperature and pressure sensor 14 to monitor the temperature and pressure of the refrigerant in the valve island 1 under different working modes, thereby reducing the number of sensors used, and arranges the thermal management integrated component 5 on one side of the compressor 6 to reduce the number of connecting pipes used, thereby solving the problem of the automobile thermal management system in the related art being relatively large in size and low in integration, which results in longer connecting pipes between various electrical components and reduces the heat exchange efficiency of the automobile thermal management system.

[0045] Further, see Figure 2 and Figure 3 As shown, in some embodiments, the valve island 1 also includes a base 15, a first flow channel is provided in the base 15, the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13 are all fixed to the base 15, and the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13 are connected through the first flow channel of the base 15, and the first temperature and pressure sensor 14 is provided at the intersection of the first flow channel.

[0046] In this embodiment, the first expansion valve 11 is disposed above the base 15, and the second expansion valve 12 and the third expansion valve 13 are disposed on both sides of the base 15. Figure 4-6As shown, the base 15 is provided with a first interface corresponding to the position of the first expansion valve 11, and the first expansion valve 11 is plugged into the base 15 through the first interface. The base 15 is provided with a second interface corresponding to the position of the second expansion valve 12, and the second expansion valve 12 is plugged into the base 15 through the second interface. The base 15 is provided with a third interface corresponding to the position of the third expansion valve 13, and the third expansion valve 13 is plugged into the base 15 through the third interface. The first interface, the second interface and the third interface are connected through the first flow channel, so that the pipelines between the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13 are integrated, the pipeline setting between the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13 is reduced, the length of the refrigerant flow channel is minimized, and the air-conditioning performance is improved. The first temperature and pressure sensor 14 is plugged into the intersection of the first flow channel to monitor the temperature and pressure of the refrigerant in the valve island 1 under different working modes.

[0047] Further, see Figure 1 、 Figure 7 and Figure 8 As shown, in some embodiments, the thermal management integrated component 5 includes a gas-liquid separator 51, the air inlet of the gas-liquid separator 51 is connected to the battery cooler 41 through the first pipeline, the first pipeline is provided with a fifth expansion valve 52, and the air outlet of the gas-liquid separator 51 is connected to the compressor 6 and the heat exchanger 7 through a second pipeline, the second pipeline is provided with a water-cooled condenser 8 and a sixth expansion valve 53.

[0048] In this embodiment, the fifth expansion valve 52 controls the on-off of the first pipeline, and the sixth expansion valve 53 controls the on-off of the second pipeline. The second pipeline is also connected to a third pipeline, and the third pipeline is provided with the built-in condenser 3. When the compressor 6 is in the cooling mode, the fifth expansion valve 52 and the sixth expansion valve 53 are opened, and the valve island 1 and the battery cooler 41 are respectively connected to the gas-liquid separator 51 through the first pipeline. When the compressor 6 is in the heating mode, the fifth expansion valve 52 and the sixth expansion valve are closed, and the valve island 1 is connected to the gas-liquid separator 51 through the third pipeline.

[0049] Further, see Figure 1 As shown, in some embodiments, the gas-liquid separator 51 is further connected to the heat exchanger 7 via a stop valve 54 , and the stop valve 54 is connected in parallel with the sixth expansion valve 53 .

[0050] In this embodiment, the gas-liquid separator 51 is also connected to the heat exchanger 7 through the stop valve 54 to switch different working modes. When the compressor 6 is in the cooling mode, the stop valve 54 is closed, and when the compressor 6 is in the heating mode, the stop valve 54 is opened.

[0051] Further, see Figure 1 and Figure 7 As shown, in some embodiments, a second temperature and pressure sensor 55 is provided at the air inlet of the gas-liquid separator 51 .

[0052] In this embodiment, the second temperature and pressure sensor 55 is arranged at the air inlet of the gas-liquid separator 51, so that one temperature and pressure sensor can monitor the temperature and pressure of the refrigerant in the thermal management integrated component 5 in different working modes, thereby reducing the number of sensors used.

[0053] Further, see Figure 1 As shown, in some embodiments, the gas-liquid separator 51 and the compressor 6 are also connected in series with a seventh expansion valve 56, the air inlet of the seventh expansion valve 56 is connected between the compressor 6 and the water-cooled condenser 8, and the air outlet of the seventh expansion valve 56 is connected between the fifth expansion valve 52 and the gas-liquid separator 51.

[0054] In this embodiment, when the compressor 6 is in the process of temperature rise, the seventh expansion valve 56 is opened, and the compressor 6 and the gas-liquid separator 51 form a series circuit, so that the temperature of the compressor 6 can rise quickly.

[0055] Further, see Figure 1 and Figure 8 As shown, in some embodiments, the thermal management integrated component 5 also includes a flow channel plate assembly 57, the flow channel plate assembly 57 is provided with a second flow channel, the gas-liquid separator 51, the fifth expansion valve 52 and the sixth expansion valve 53 are all fixed to the flow channel plate assembly 57, and the gas-liquid separator 51 is connected to the fifth expansion valve 52 and the sixth expansion valve 53 through the second flow channel of the flow channel plate assembly 57.

[0056] In this embodiment, Figure 9 and Figure 10As shown, the flow channel plate assembly 57 includes a flow channel plate 571 and a support plate 572, the flow channel plate 571 and the support plate 572 are welded to form a whole, the support plate 572 is fixed to the gas-liquid separator 51, and is communicated with the air inlet of the gas-liquid separator 51, the flow channel plate 571 is provided with a fourth interface corresponding to the position of the fifth expansion valve 52, the fifth expansion valve 52 is plugged into the flow channel plate 571 through the fourth interface, the flow channel plate 571 is provided with a fifth interface corresponding to the position of the sixth expansion valve 53, the sixth expansion valve 53 is plugged into the flow channel plate 571 through the fifth interface, the gas-liquid separator 51, the fifth expansion valve 52, and the sixth expansion valve 53 are integrated together through the flow channel plate, and the flow channel plate 571 is provided with a There is a second flow channel that is interconnected, and the second flow channel connects the air inlet and air outlet of the gas-liquid separator 51 and the fourth interface and the fifth interface, thereby reducing the number of pipelines used between the gas-liquid separator 51, the fifth expansion valve 52 and the sixth expansion valve 53 and the connection length of the pipelines between the gas-liquid separator 51, the fifth expansion valve 52 and the sixth expansion valve 53, reducing the flow resistance of the air-conditioning system and improving the air-conditioning efficiency. The stop valve 54 and the seventh expansion valve 56 are both plugged into the flow channel plate 571, so that the stop valve 54 and the seventh expansion valve 56 are integrated with the gas-liquid separator 51, the fifth expansion valve 52 and the sixth expansion valve 53, reducing the number of pipelines used between the valves and the connection length of the pipelines.

[0057] See also Figure 1 As shown, an embodiment of the present application provides a control method for an automobile thermal management system, which includes the following steps: when the battery needs to be cooled, controlling the compressor 6, the first expansion valve 11, the third expansion valve 13 and the fourth expansion valve 42 to open, and controlling the second expansion valve 12 to close, so that the thermal management integrated component 5 is connected to the evaporator 2 and the battery cooler 41.

[0058] In this embodiment, when the battery needs to be cooled, the compressor 6 outputs high-temperature and high-pressure refrigerant. The refrigerant output by the compressor 6 enters the heat exchanger 7 through the water-cooled condenser 8, and exchanges heat with the outside air in the heat exchanger 7, condensing the gaseous refrigerant into a hydraulic refrigerant, and then enters the gas-liquid separator 51 through the valve island 1 and the battery cooler assembly 4 respectively, and finally flows back to the compressor 6, wherein the first expansion valve 11, the third expansion valve 13 and the fourth expansion valve 42 are opened, and the second expansion valve 12 is closed, and the heat exchanger 7 is connected to the evaporator 2 and the battery cooler 41, and the liquid refrigerant passes through the heat exchanger 7 and the battery cooler 41, and is vaporized and absorbs heat in the heat exchanger 7 and the battery cooler 41, thereby cooling the vehicle's battery, and the gaseous refrigerant flows back to the gas-liquid separator 51.

[0059] Further, see Figure 1 As shown, in some embodiments, the control method further includes the following steps: when the battery needs to be heated, the second expansion valve 12 and the third expansion valve 13 are controlled to be open, and the first expansion valve 11 and the fourth expansion valve 42 are controlled to be closed, so that the thermal management integrated component 5 is connected to the built-in condenser 3.

[0060] In this embodiment, when the battery needs to be heated, the compressor 6 outputs a high-temperature and high-pressure refrigerant. The refrigerant output by the compressor 6 enters the built-in condenser 3 through the water-cooled condenser 8, and then flows back to the compressor 6 through the heat exchanger 7 and the gas-liquid separator 51, wherein the second expansion valve 12 and the third expansion valve 13 are opened, and the first expansion valve 11 and the fourth expansion valve 42 are closed, and the heat exchanger 7 is connected to the built-in condenser 3. The refrigerant with a higher temperature first exchanges heat through the water-cooled condenser 8, and the heat exchanged enters the battery to heat the battery, and then exchanges heat through the built-in condenser 3. The heat-exchanged liquefied refrigerant is then vaporized through the heat exchanger 7, and finally the gaseous refrigerant flows back to the gas-liquid separator 51 through the stop valve 54.

[0061] See also Figure 1 As shown, an embodiment of the present application provides a vehicle, which includes the above-mentioned automobile thermal management system.

[0062] In this embodiment, the vehicle adopts the automotive thermal management system, and the first temperature and pressure sensor 14 is arranged at the connection between the third expansion valve 13 and the first expansion valve 11 and the second expansion valve 12, so that one temperature and pressure sensor monitors the temperature and pressure of the refrigerant in different working modes, reducing the number of sensors used. The battery cooler assembly 4 can be integrated or dispersed with the valve island 1 according to the layout to improve the flexibility of the layout. The thermal management integrated component 5 is arranged near the compressor 6 to reduce the number of connected pipelines.

[0063] When the compressor 6 is in cooling mode, the first expansion valve 11, the third expansion valve 13, the fourth expansion valve 42, the fifth expansion valve 52 and the sixth expansion valve 53 are opened, and the second expansion valve 12, the seventh expansion valve 56 and the stop valve 54 are closed. The refrigerant output by the compressor 6 enters the heat exchanger 7 through the water-cooled condenser 8, and then enters the gas-liquid separator 51 through the evaporator 2 and the battery cooler 41 respectively, and finally flows back to the compressor 6; when the compressor 6 is in heating mode, the second expansion valve 12, the third expansion valve 13 and the stop valve 54 are opened, and the first expansion valve 11, the fourth expansion valve 42, the fifth expansion valve 52, the sixth expansion valve 53 and the seventh expansion valve are closed. The refrigerant output by the compressor 6 enters the built-in condenser 3 through the water-cooled condenser 8, and then flows back to the compressor 6 through the heat exchanger 7 and the gas-liquid separator 51.

[0064] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0065] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0066] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An automotive thermal management system, characterized in that: It includes: A valve island (1), the valve island (1) comprising a first expansion valve (11) and a second expansion valve (12) arranged in parallel, the first expansion valve (11) and the second expansion valve (12) being connected in series with a third expansion valve (13), a first temperature and pressure sensor (14) being provided at a connection between the third expansion valve (13) and the first expansion valve (11) and the second expansion valve (12), wherein the first expansion valve (11) is connected in series with an evaporator (2), and the second expansion valve (12) is connected in series with a built-in condenser (3); A battery cooler assembly (4), the battery cooler assembly (4) comprising a battery cooler (41) and a fourth expansion valve (42) connected in series, the fourth expansion valve (42) being connected to the valve island (1) via a first pipeline; A thermal management integrated component (5), wherein the air inlet of the thermal management integrated component (5) is connected to the valve island (1), and the air inlet of the thermal management integrated component (5) is also connected to the battery cooler assembly (4), a compressor (6) is connected in series between one side of the thermal management integrated component (5) and the valve island (1), and a heat exchanger (7) is connected in series between the other side of the thermal management integrated component (5) and the valve island (1).

2. The automotive thermal management system according to claim 1, wherein: The valve island (1) further includes a base (15), wherein a first flow channel is provided in the base (15), the first expansion valve (11), the second expansion valve (12) and the third expansion valve (13) are all fixed to the base (15), and the first expansion valve (11), the second expansion valve (12) and the third expansion valve (13) are connected through the first flow channel of the base (15), and the first temperature and pressure sensor (14) is provided at the intersection of the first flow channel.

3. The automotive thermal management system according to claim 1, wherein: The thermal management integrated component (5) includes a gas-liquid separator (51), an air inlet of the gas-liquid separator (51) is connected to the battery cooler (41) via the first pipeline, the first pipeline is provided with a fifth expansion valve (52), and an air outlet of the gas-liquid separator (51) is connected to the compressor (6) and the heat exchanger (7) via a second pipeline, the second pipeline is provided with a water-cooled condenser (8) and a sixth expansion valve (53).

4. The automotive thermal management system according to claim 3, wherein: The gas-liquid separator (51) is also connected to the heat exchanger (7) via a stop valve (54), and the stop valve (54) is connected in parallel with the sixth expansion valve (53).

5. The automotive thermal management system according to claim 3, wherein: A second temperature and pressure sensor (55) is provided at the air inlet of the gas-liquid separator (51).

6. The automotive thermal management system according to claim 3, wherein: The gas-liquid separator (51) and the compressor (6) are further connected in series with a seventh expansion valve (56), the air inlet of the seventh expansion valve (56) is connected between the compressor (6) and the water-cooled condenser (8), and the air outlet of the seventh expansion valve (56) is connected between the fifth expansion valve (52) and the gas-liquid separator (51).

7. The automotive thermal management system according to claim 3, wherein: The thermal management integrated component (5) further includes a flow channel plate assembly (57), wherein the flow channel plate assembly (57) is provided with a second flow channel, the gas-liquid separator (51), the fifth expansion valve (52) and the sixth expansion valve (53) are all fixed to the flow channel plate assembly (57), and the gas-liquid separator (51) is connected to the fifth expansion valve (52) and the sixth expansion valve (53) through the second flow channel of the flow channel plate assembly (57).

8. A control method for an automotive thermal management system according to claim 1, characterized in that: The control method comprises the following steps: When the battery needs to be cooled, the compressor (6), the first expansion valve (11), the third expansion valve (13) and the fourth expansion valve (42) are controlled to be opened, and the second expansion valve (12) is controlled to be closed, so that the thermal management integrated component (5) is connected to the evaporator (2) and the battery cooler (41).

9. The control method according to claim 8, wherein: The control method further comprises the following steps: When the battery needs to be heated, the second expansion valve (12) and the third expansion valve (13) are controlled to be opened, and the first expansion valve (11) and the fourth expansion valve (42) are controlled to be closed, so that the thermal management integrated component (5) is connected to the built-in condenser (3).

10. A vehicle, characterized in that: It comprises the automotive thermal management system as claimed in claim 1 .

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