Thermal management system

Abstract

The thermal management system includes a fluid management component. In one operating mode, the refrigerant is throttled and depressurized by the fluid management component, and after gas-liquid separation, it enters the second heat exchanger. In another operating mode, after gas-liquid separation by the fluid management component, the gaseous refrigerant enters the compressor, and the liquid refrigerant enters the third heat exchanger for heat exchange. The thermal management system can achieve gas-liquid separation in both modes, which can improve the performance of the thermal management system.

Description

Technical Field

[0001] This invention relates to the field of thermal management technology, and more specifically to a thermal management system. Background Technology

[0002] Thermal management systems are used to regulate the temperature of controlled objects, keeping them within a relatively suitable temperature range. Improving the performance of thermal management systems is a technical issue. Summary of the Invention

[0003] The purpose of this application is to provide a thermal management system that improves the performance of the thermal management system.

[0004] One embodiment of this application provides a thermal management system, including a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fluid management component. The fluid management component has a gas-liquid separation chamber, a first port, a second port, a third port, a fourth port, and a fifth port. The outlet of the compressor is connected to the first port of the fluid management component through the first heat exchanger. The fifth port of the fluid management component is connected to the gas-liquid separation chamber, and the fifth port of the fluid management component is connected to the inlet of the compressor.

[0005] In the first operating mode of the thermal management system, the refrigerant, after being throttled and depressurized by the fluid management component, enters the gas-liquid separation chamber and flows into the first port of the second heat exchanger through the second port of the fluid management component. The second port of the second heat exchanger is connected to the inlet of the compressor. In the second operating mode of the thermal management system, the fluid management component connects the first heat exchanger and the second heat exchanger, and the second port of the second heat exchanger is connected to the third port of the fluid management component. The fluid management component allows the throttled and depressurized refrigerant to enter the gas-liquid separation chamber and flow into the third heat exchanger through the fourth port of the fluid management component. The third heat exchanger is connected to the inlet of the compressor.

[0006] Another embodiment of this application provides a thermal management system including a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fluid management component. The fluid management component includes a valve device and a gas-liquid separator. The valve device includes a first valve device and a second valve device. The gas-liquid separator has two inlets and two outlets. The valve device has one inlet and two outlets. The outlet of the compressor is connected to the inlet of the first valve device through the first heat exchanger. The first outlet of the gas-liquid separator is connected to the inlet of the compressor. The second outlet of the gas-liquid separator can be connected to the first port of the second heat exchanger and / or the first port of the third heat exchanger. The first outlet of the first valve device is connected to the first port of the second heat exchanger, the second outlet of the first valve device is connected to the first inlet of the gas-liquid separator, the second port of the second heat exchanger can be connected to the inlet of the compressor or the inlet of the second valve device, the first outlet of the second valve device can be connected to the first port of the third heat exchanger, the second outlet of the second valve device is connected to the second inlet of the gas-liquid separator, the second outlet of the gas-liquid separator can be connected to at least one of the first ports of the second heat exchanger and the first ports of the third heat exchanger, and the second port of the third heat exchanger is connected to the inlet of the compressor.

[0007] The first valve device has a first conducting channel and a first throttling cavity. The inlet of the first valve device can be connected to the first outlet of the first valve device through the first conducting channel, and the inlet of the first valve device can be connected to the second outlet of the first valve device through the first throttling cavity. The second valve device has a second conducting channel and a second throttling cavity. The inlet of the second valve device can be connected to the first outlet of the second valve device through the second conducting channel, and the inlet of the second valve device can be connected to the second outlet of the second valve device through the second throttling cavity.

[0008] The thermal management system of this application includes a fluid management component, which has a gas-liquid separation function. In one operating mode, the refrigerant after being throttled by the fluid management component undergoes gas-liquid separation in a gas-liquid separator. The relatively gaseous refrigerant enters the compressor, while the relatively liquid refrigerant enters the second heat exchanger for heat exchange. In another operating mode, after the refrigerant after being throttled by the fluid management component passes through the gas-liquid separator, the relatively gaseous refrigerant enters the compressor, while the relatively liquid refrigerant enters the third heat exchanger for heat exchange. The thermal management system can replenish gas and increase enthalpy in both operating modes, thereby improving the performance of the thermal management system. Attached Figure Description

[0009] Figure 1 This is a connection diagram of the first embodiment of the thermal management system;

[0010] Figure 2 yes Figure 1 Connection diagram of the central heat management system in its first working mode;

[0011] Figure 3 yes Figure 1 Connection diagram of the central heat management system in the second working mode;

[0012] Figure 4 yes Figure 1 A connection diagram of the first embodiment of the first valve device in the diagram;

[0013] Figure 5 yes Figure 1 A schematic diagram of the connection of the first embodiment of the second valve device in the diagram;

[0014] Figure 6 yes Figure 1 A connection diagram of the second embodiment of the first valve device in the diagram;

[0015] Figure 7 yes Figure 1 A connection diagram of the second embodiment of the second valve device in the diagram;

[0016] Figure 8 yes Figure 1 A connection diagram of the third embodiment of the first valve device in the diagram;

[0017] Figure 9 yes Figure 1 A schematic diagram of the interface of the gas-liquid separator in the diagram;

[0018] Figure 10 This is a connection diagram of one embodiment of the third valve device;

[0019] Figure 11 This is a connection diagram of the second embodiment of the thermal management system;

[0020] Figure 12 This is a connection diagram of the third embodiment of the thermal management system;

[0021] Figure 13 yes Figure 1 A schematic diagram of the fourth embodiment of the first valve device in the diagram;

[0022] Figure 14 This is a connection diagram of the fourth implementation of the thermal management system;

[0023] Figure 15 This is a connection diagram of the fifth implementation of the thermal management system;

[0024] Figure 16 yes Figure 14 A schematic diagram of the working status of the fluid management device when the central thermal management system is in its first working mode;

[0025] Figure 17 yes Figure 14 A schematic diagram of the working status of the fluid management device when the central thermal management system is in the second working mode;

[0026] Figure 18 yes Figure 14 A schematic diagram of the working status of the fluid management device when the central thermal management system is in the third working mode;

[0027] Figure 19 yes Figure 14 A schematic diagram of the working status of the fluid management device when the central thermal management system is in the fourth working mode;

[0028] Figure 20 yes Figure 14 A schematic diagram of the working status of the fluid management device when the central thermal management system is in the fifth working mode;

[0029] Figure 21 yes Figure 14 Schematic diagram of the working status of the fluid management device when the central thermal management system is in the sixth working mode;

[0030] Figure 22 This is a connection diagram of the sixth implementation of the thermal management system. Detailed Implementation

[0031] The thermal management system of the present invention can have multiple implementations, and at least one implementation can be applied to other thermal management systems such as automotive thermal management systems, household thermal management systems, or commercial thermal management systems. The following description takes the application to a vehicle thermal management system as an example and is illustrated with reference to the accompanying drawings. The fluid is a refrigerant, including R134a, CO2, or other forms of refrigerant.

[0032] Please see Figure 22The thermal management system includes a compressor 10, a first heat exchanger 100, a second heat exchanger 200, a third heat exchanger 300, and a fluid management component 50'. The fluid management component 50' has a gas-liquid separation chamber 3212, a first port 1001, a second port 1002, a third port 1003, a fourth port 1004, and a fifth port 1005. The outlet of the compressor 10 is connected to the first port 1001 of the fluid management component through the first heat exchanger 100. The fifth port of the fluid management component is connected to the gas-liquid separation chamber 3212 and the inlet of the compressor 10. In the first operating mode of the thermal management system, after the fluid management component 50' reduces pressure by throttling... The refrigerant enters the gas-liquid separation chamber 3212 and flows into the first port of the second heat exchanger 200 through the second port 1002 of the fluid management component. The second port of the second heat exchanger 200 is connected to the inlet of the compressor. In the second working mode of the thermal management system, the fluid management component 50' connects the first heat exchanger 100 and the second heat exchanger 200. The second port of the second heat exchanger 200 is connected to the third port 1003 of the fluid management component. The fluid management component 50' allows the refrigerant after throttling and depressurization to enter the gas-liquid separation chamber 3212 and flow into the third heat exchanger 300 through the fourth port 1004 of the fluid management component. The third heat exchanger 300 is connected to the inlet of the compressor 10.

[0033] Please see Figures 1-10In the first embodiment shown, the fluid management component includes a valve device and a gas-liquid separator 800. The valve device includes a first valve device 600, a second valve device 700, and a third valve device 900. The gas-liquid separator 800 has two inlets and two outlets. The valve device has one inlet and two outlets. The first outlet of the first valve device is connected to the second port of the fluid management component, and the first outlet of the second valve device is connected to the third port of the fluid management component. The inlet of the first valve device is either the first port of the fluid management component or is connected to the first port of the fluid management component. The inlet of the second valve device is either the third port of the fluid management component or is connected to the third port of the fluid management component. The first outlet of the gas-liquid separator is either the fifth port of the fluid management component or is connected to the fifth port of the fluid management component. The second outlet of the gas-liquid separator can be connected to the second port and / or the fourth port of the fluid management component. The outlet of the compressor 10 is connected to the first valve device through a first heat exchanger 100. The inlet 601 of the gas-liquid separator 800 is connected to the inlet 804 of the gas-liquid separator 800, the first outlet 602 of the first valve device 600 is connected to the first port of the second heat exchanger 200, the second outlet 603 of the first valve device 600 is connected to the first inlet 801 of the gas-liquid separator, the second port of the second heat exchanger 200 can be connected to the inlet of the compressor 10 through a switching valve 20, the second port of the second heat exchanger 200 can also be connected to the inlet 703 of the second valve device, the first outlet 702 of the second valve device can be connected to the first port of the third heat exchanger 300, the second outlet 701 of the second valve device is connected to the second inlet of the gas-liquid separator 800, the second outlet 803 of the gas-liquid separator can be connected to the first port of the second heat exchanger 200 and / or the first port of the third heat exchanger 300 through the third valve device 900, and the second port of the third heat exchanger 300 is connected to the inlet of the compressor 10. The first valve device 600 and the second valve device 700 have conduction and throttling functions. Taking the first valve device 600 as an example, the first valve device 600 can make the inlet 601 of the first valve device open to the first outlet 602 of the first valve device 600, and the first valve device 600 can make the refrigerant entering the first valve device 600 throttle and reduce its pressure before flowing out from the second outlet 603 of the first valve device.

[0034] In this embodiment, the first heat exchanger 100 is a dual-channel heat exchanger. The refrigerant channel of the first heat exchanger 100 is connected to the outlet of the compressor 10. The heat exchanger connected to the coolant channel of the first heat exchanger 100 is located in the vehicle's air conditioning unit. The third heat exchanger 300 is also located in the vehicle's air conditioning unit. Along the airflow direction within the air conditioning unit, the heat exchanger connected to the coolant channel of the first heat exchanger 100 is located downwind of the third heat exchanger 300. The second heat exchanger 200 is used for ambient air heat exchange.

[0035] The thermal management system includes at least a first operating mode and a second operating mode. In the first operating mode of the thermal management system, that is, the first heating mode of the thermal management system, the high-temperature and high-pressure refrigerant discharged by the compressor 10 releases heat in the first heat exchanger 100. The first valve device 600 causes the refrigerant after throttling and depressurization to enter the gas-liquid separator 800 through the first inlet of the gas-liquid separator 800. The refrigerant is separated into gas and liquid in the gas-liquid separator 800. The relatively gaseous refrigerant enters the inlet of the compressor 10 through the first outlet 804 of the gas-liquid separator, and the relatively liquid refrigerant enters the second heat exchanger 200 through the second outlet 803 of the gas-liquid separator. The refrigerant evaporates and absorbs heat in the second heat exchanger 200, and then enters the inlet of the compressor 10. In the second operating mode of the thermal management system, which is also the first refrigeration mode of the thermal management system, the first heat exchanger 100 is connected to the second heat exchanger 200 through the first valve device 600. The high-temperature and high-pressure refrigerant releases heat in the second heat exchanger 200. The second port of the second heat exchanger 200 is connected to the inlet 703 of the second valve device. The second valve device 700 allows the throttled and depressurized refrigerant to enter the gas-liquid separator 800. The relatively gaseous refrigerant enters the inlet of the compressor 10 from the first outlet 804 of the gas-liquid separator, and the relatively liquid refrigerant enters the third heat exchanger 300 from the second outlet 803 of the gas-liquid separator. The refrigerant evaporates and absorbs heat in the third heat exchanger 300, and then enters the inlet of the compressor 10. In the first operating mode of the thermal management system, after throttling and depressurization, the refrigerant undergoes gas-liquid separation. The relatively gaseous refrigerant enters the compressor 10, while the relatively liquid refrigerant evaporates and absorbs heat in the corresponding heat exchanger. This allows more gaseous refrigerant to enter the compressor 10 earlier, effectively increasing the refrigerant flow rate into the first heat exchanger 100, which is beneficial for improving the system's heating capacity. In the second operating mode, more gaseous refrigerant enters the compressor 10 earlier, effectively increasing the refrigerant flow rate into the second heat exchanger 200, increasing the refrigerant's subcooling. The enthalpy difference between the inlet and outlet of the third heat exchanger 300 also increases accordingly, thereby improving the system's cooling capacity. In summary, the heating and cooling performance of the thermal management system is improved.

[0036] In this embodiment, the compressor 10 has an inlet and an outlet. In other embodiments, the inlet of the compressor 10 includes a first inlet and a second inlet. The first inlet 12 of the compressor is a relatively high-pressure inlet, and the second inlet 13 of the compressor is a relatively low-pressure inlet. Specifically, the first outlet 804 of the gas-liquid separator is connected to the first inlet 12 of the compressor, the second port of the second heat exchanger 200 is connected to the second inlet 13 of the compressor, and the second port of the third heat exchanger 300 is connected to the second inlet 13 of the compressor.

[0037] In this embodiment, the gas-liquid separator 800 includes two inlets and two outlets. The gas-liquid separator 800 includes a cylinder and a conduit assembly. The cylinder and the conduit assembly are fixedly connected or limitedly connected and sealed at the connection. The two inlets and the second outlet 803 of the gas-liquid separator are located in the cylinder, and the first outlet 804 of the gas-liquid separator is located in the conduit assembly. The two inlets of the gas-liquid separator 800 do not face the conduit of the conduit assembly. In this way, the refrigerant entering the gas-liquid separator 800 through the inlets rotates and separates in its gas-liquid separation chamber, which can accelerate the gas-liquid separation.

[0038] The first valve device and the second valve device have the same structure. The first valve device will be used as an example for explanation. Please refer to [link / reference]. Figure 13 The first embodiment of the first valve device 600 is shown. The first valve device 600 includes a first valve body, a first valve core 610, and a valve seat. The first valve body has a first receiving cavity, and the first valve core 610 and the valve seat are located in the first receiving cavity. The first valve device 600 has a first conducting channel 611 and a first throttling cavity. The first conducting channel 611 is located in the first valve core 610 and has two openings in the first valve core 610. The first valve core 610 has a first throttling groove 612, which mates with the mating surface of the valve seat to form the first throttling cavity. The inlet 601, the first outlet 602, and the second outlet 603 of the first valve device are located in the first valve body or in a pipe or block connected to the first valve body. The first valve core 610 includes multiple operating positions. In the first operating position, the inlet 601 of the first valve device is connected to the first outlet 602 of the first valve device through the first conducting channel 611. In the second operating position, the inlet 601 of the first valve device is connected to the second outlet 603 of the first valve device through the first throttling chamber. In the first operating mode of the thermal management system, the first valve core 610 is located in the first operating position, that is, the inlet 601 of the first valve device is connected to the second outlet 603 of the first valve device through the first throttling chamber. Similarly, the second valve device includes a second valve body, a second valve core, and a valve seat. The second valve device has a second conducting channel and a second throttling chamber, which will not be described in detail. In the first operating position of the second valve core, the inlet of the second valve device is connected to the first outlet of the second valve device through the second conducting channel. In the second operating position of the second valve core, the inlet of the second valve device is connected to the second outlet of the second valve device through the second throttling chamber. In the second operating mode of the thermal management system, the second valve core is located in the second operating position, and the inlet of the second valve device is connected to the second outlet of the second valve device through the second throttling chamber.

[0039] Please see Figure 6 and Figure 7The second embodiment of the first valve device 600 and the second valve device 700 shown herein includes a first shut-off valve 610 and a first throttle valve 620. The valve body of the first throttle valve 620 and the first shut-off valve 610 can be separately configured or integrated. One port of the first shut-off valve 610 and one port of the first throttle valve 620 are connected to the inlet 601 of the first valve device. The other port of the first shut-off valve 610 is connected to the first outlet of the first valve device 600, and the other port of the first throttle valve 620 is connected to the second outlet 603 of the first valve device. The second valve device 700 may also include a second shut-off valve 610' and a first throttle valve 620, with the specific connection method being the same as that of the first valve device 600, and will not be described in detail further.

[0040] In other embodiments, the first valve core may also include a third operating position. When the first valve core is in the third operating position, the inlet 601 of the first valve device can be connected to the first outlet of the first valve device 600 through the first throttling chamber. At this time, the thermal management system is in a third operating mode. The first valve device 600 causes the refrigerant after throttling and depressurization to enter the second heat exchanger 200 from the first outlet of the first valve device 600. The second port of the second heat exchanger 200 is connected to the inlet of the compressor 10. Compared with the first operating mode, the refrigerant does not undergo gas-liquid separation by the gas-liquid separator 800, and the third operating mode can be used when the ambient temperature is relatively high.

[0041] The second valve core may also include a third working position. When the second valve core is in the third working position, the inlet 703 of the second valve device can be connected to the first outlet 702 of the second valve device through the second conductive channel. At this time, the thermal management system is in the fourth working mode. The refrigerant releases heat in the first heat exchanger 100. The first valve device 600 causes the refrigerant after throttling and depressurization to enter the second heat exchanger 200 through the second outlet 603 of the first valve device. The refrigerant evaporates and absorbs heat in the second heat exchanger 200. The second port of the second heat exchanger 200 is connected to the inlet 703 of the second valve device. The second outlet 701 of the second valve device is connected to the third heat exchanger 300. The refrigerant further evaporates and absorbs heat in the third heat exchanger 300 and then enters the inlet of the compressor 10. The fourth working mode of the thermal management system can also be called the heating and dehumidification mode of the thermal management system.

[0042] The thermal management system may also include a fifth operating mode. In the fifth operating mode of the thermal management system, the first valve device 600 causes the refrigerant after throttling and depressurization to enter the second heat exchanger 200 from the first outlet of the first valve device 600. The second port of the second heat exchanger 200 is connected to the inlet 703 of the second valve device. The first outlet 702 of the second valve device is connected to the first port of the third heat exchanger 300 through the gas-liquid separator 800.

[0043] The thermal management system may also include a sixth operating mode. In the sixth operating mode of the thermal management system, the first valve device 600 causes the refrigerant after throttling and depressurization to enter the gas-liquid separator 800 through the first inlet of the gas-liquid separator 800. The second outlet 803 of the gas-liquid separator is connected to the inlet of the compressor 10 through the second heat exchanger 200 and the third heat exchanger 300.

[0044] Please see Figure 8 The first valve device 600 includes a first shut-off valve 610, a second shut-off valve 610', a first throttle valve 620, and a second throttle valve 620'. The valve bodies of the throttle valves and the shut-off valves can be separately installed or integrated. One port of the first shut-off valve 610 and one port of the first throttle valve 620 are connected to the inlet 601 of the first valve device, and the other ports of the first shut-off valve 610 and the first throttle valve 620 are connected to the first outlet of the first valve device 600. One port of the second shut-off valve 610' and one port of the second throttle valve 620' are connected to the inlet 601 of the first valve device. The first valve device 600 has one port connected to the inlet of the valve assembly. The other port of the second shut-off valve 610' and the other port of the second throttle valve 620' are connected to the second outlet 603 of the first valve assembly. When the first valve assembly 600 is operating, by controlling the on / off state of the first shut-off valve 610 and the second shut-off valve 610', and adjusting the opening degree of the first throttle valve 620 and the second throttle valve 620', throttling or opening is achieved between the inlet 601 and the first outlet of the first valve assembly 600, and between the inlet 601 and the second outlet 603 of the first valve assembly. Similarly, the second valve assembly 700 can also employ... Figure 8 The connection method shown is not described in detail here.

[0045] The third valve device 900 has one inlet and two outlets. The third valve device 900 enables communication between the inlet 901 and at least one of the two outlets. The second outlet 803 of the gas-liquid separator is connected to the inlet 901 of the third valve device. One outlet 902 of the third valve device is connected to the first port of the second heat exchanger 200, and the other outlet 903 of the third valve device is connected to the first port of the third heat exchanger 300. In one specific embodiment, the first valve device 600 may include two shut-off valves, such as... Figure 10 The stop valves 910 and 920 shown are connected as follows: Figure 10 As shown in the illustration, no further detailed description is needed. In another specific embodiment, the third valve device can also be a three-way ball valve or a three-way flow regulating valve.

[0046] The thermal management system may also include a throttling section. In one specific embodiment, the throttling section may be located in the gas-liquid separator 800, forming a throttling orifice within the cylinder of the gas-liquid separator 800. The diameter of the throttling orifice is between 1 mm and 2 mm. The throttling section is located upstream of the second outlet 803 of the gas-liquid separator. In other words, after gas-liquid separation, the relatively liquid refrigerant flows out of the gas-liquid separator 800 through the second outlet after being throttled by the throttling section. This improves the integration of the gas-liquid separator 800. In another embodiment, the throttling section is separately arranged from the gas-liquid separator 800. The second outlet 803 of the gas-liquid separator is connected to the inlet 901 of the third valve device through the throttling section. In this case, the throttling section may be a capillary tube or a throttling valve, which will not be described in detail here. In another specific embodiment, the throttling section is part of the third valve device. The structure of the third valve device can be the same as that of the first valve device 600, thus achieving a high degree of integration. Alternatively, the throttling section includes a first throttling section 51 and a second throttling section 52. The first throttling section 51 is located within the third valve device, between the inlet 901 and one outlet 902 of the third valve device. The second throttling section 52 is located between the inlet 901 and the second outlet 903 of the third valve device. In this case, the third valve device can be an integration of a three-way ball valve and a throttling orifice, or an integration of a throttling valve, which will not be described in detail here. The thermal management system incorporates a throttling section. After secondary throttling and pressure reduction, the refrigerant enters the second heat exchanger 200, improving the heat absorption performance of the second heat exchanger 200, which in turn helps improve the heating performance of the first heat exchanger 100.

[0047] In a more specific embodiment, the third valve device includes a first check valve, a second check valve, a first throttling section, a second throttling section, and a solenoid valve. The first check valve and the first throttling section are located between the inlet 901 and one outlet 902 of the third valve device. The first check valve allows the inlet 901 to unidirectionally connect to one outlet 902. The second check valve, the second throttling section, and the solenoid valve are located between the inlet 901 and another outlet 903 of the third valve device. The first check valve allows the inlet 901 to unidirectionally connect to the other outlet 903. The solenoid valve is located upstream of the second check valve. Using check valves in the third valve device can reduce the cost of the third valve device 900.

[0048] Please see Figure 12 The thermal management system also includes a throttling element 30 and a fourth heat exchanger 400. The throttling element 30 can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger 400. The second port of the second heat exchanger 200 can be connected to the second inlet of the compressor through the throttling element 30 and the fourth heat exchanger 400. The fourth heat exchanger 400 can be a dual-flow heat exchanger, and its coolant flow channel can be used to regulate the temperature of heat-generating components such as batteries in the vehicle.

[0049] Please see Figure 14 In the fourth embodiment of the illustrated thermal management system, the fluid management component 50' is a fluid management device 50. The fluid management device 50 has at least a first inlet 103, a second inlet 104, a first outlet 102, a second outlet 105, and a third outlet 101. The first inlet 103 is the first port of the fluid management component or is connected to the first port of the fluid management component. The second inlet 104 is the third port of the fluid management component or is connected to the third port of the fluid management component. The first outlet 102 is the second port of the fluid management component or is connected to the second port of the fluid management component. The second outlet 105 is the fourth port of the fluid management component or is connected to the fourth port of the fluid management component. The third outlet 101 is the fifth port of the fluid management component or is connected to the fifth port of the fluid management component. The compressor outlet 11 can be connected to the first outlet of the fluid management device 50 through the first heat exchanger 100. The refrigerant discharged from the compressor 10 at high pressure and high temperature is connected to the first heat exchanger 100, where it releases heat. The third outlet 101 of the fluid management device 50 is connected to the first inlet 12 of the compressor, and the second outlet 105 of the fluid management device 50 is connected to the first port of the second heat exchanger 200. Thus, the refrigerant flowing out of the fluid management device 50 can enter the second heat exchanger 200. The second port of the second heat exchanger 200 can be connected to the second inlet 13 of the compressor through the switching valve 20 or through the gas-liquid separator. The second port of the second heat exchanger 200 can also be connected to the second inlet 104 of the fluid management device 50. The second outlet 105 of the fluid management device 50 is connected to the second inlet 13 of the compressor through the third heat exchanger 300 or through the gas-liquid separator.

[0050] In this embodiment, the first heat exchanger 100 is a dual-channel heat exchanger. The refrigerant channel of the first heat exchanger 100 is connected to the compressor outlet. The heat exchanger connected to the coolant channel of the first heat exchanger 100 is located in the vehicle's air conditioning unit. The third heat exchanger 300 is also located in the vehicle's air conditioning unit. Along the airflow direction within the air conditioning unit, the heat exchanger connected to the coolant channel of the first heat exchanger 100 is located downwind of the third heat exchanger 300. Alternatively, the third heat exchanger 300 may also include a refrigerant channel and a coolant channel. The refrigerant channel of the third heat exchanger 300 is connected to the compressor inlet, and the heat exchanger connected to the coolant channel is located within the vehicle's air conditioning unit. The second heat exchanger 200 is used for ambient air heat exchange. In other embodiments, the first heat exchanger 100 can exchange heat with the airflow flowing through it. The first heat exchanger 100 may be a microchannel heat exchanger, in which case the first heat exchanger 100 is located in the air conditioning unit.

[0051] The thermal management system includes a first operating mode and a second operating mode. For the first operating mode of the thermal management system, please refer to [link / reference]. Figure 16 The first valve core 100 connects the first inlet 103 to the gas-liquid separation chamber 3212 through the first throttling chamber 120'. Specifically, the high-temperature and high-pressure refrigerant releases heat in the first heat exchanger 100, and the fluid management device 50 is in the first working state. At this time, the first valve core 100 is in the first working position, that is, the first inlet 103 is connected to the gas-liquid separation chamber 3212 through the first throttling chamber 120'. At this time, the first throttling chamber 120' connects the first receiving chamber 3211 and the first channel 3201, and the second channel 3202 connects to the first outlet 102. The refrigerant after throttling is separated into gas and liquid in the gas-liquid separator. The relatively gaseous refrigerant enters the first inlet 12 of the compressor through the third outlet 101 to participate in the next cycle. In this way, more gaseous refrigerant enters the first heat exchanger 100 to release heat, which can improve the heating effect. The relatively liquid refrigerant enters the second heat exchanger 200 through the first outlet 102, evaporates and absorbs heat in the second heat exchanger 200, and then the refrigerant enters the second inlet 13 of the compressor. At this time, the second valve core 200 disconnects the second inlet 104 from the third outlet 101, and also disconnects the second inlet 13 of the compressor from the gas-liquid separation chamber 3212. The first operating mode can also be called the first heating mode of the thermal management system.

[0052] For the second operating mode of the thermal management system, please refer to [link / reference]. Figure 17 When the fluid management device 50 is in the second working state, the first valve core 100 is in the second working position, and the first conducting channel 110 connects the second receiving cavity 3111 and the first outlet 102. In other words, the first valve core 100 connects the first inlet 103 to the first port of the second heat exchanger 200 through the first conducting channel 110. The second port of the second heat exchanger 200 is connected to the second inlet 104 of the fluid management device 50. At this time, the second valve core 200 is in the first working position, and the second throttling cavity 220' connects the third receiving cavity 3311 and the third channel 3203. That is, the second valve core 200 connects the second throttling cavity 220' to the gas-liquid separation cavity 3212, and the second channel 3202 connects to the second outlet 105. Specifically, the high-temperature, high-pressure refrigerant enters the second heat exchanger 200 through the first heat exchanger 100 and the fluid management device 50. In the second heat exchanger 200, heat is released. After being throttled by the second throttling chamber 220', the refrigerant undergoes gas-liquid separation in the gas-liquid separator. The relatively gaseous refrigerant enters the first inlet 12 of the compressor to participate in the next cycle, while the relatively liquid refrigerant enters the third heat exchanger 300 to evaporate and absorb heat. The higher liquid content of the refrigerant improves the cooling effect. The refrigerant then enters the second inlet 13 of the compressor to participate in the next cycle. This first operating mode can also be called the first cooling mode of the thermal management system.

[0053] The thermal management system may also include at least one of the following operating modes. For the third operating mode of the thermal management system, please refer to [link / reference]. Figure 18 The high-temperature, high-pressure refrigerant releases heat in the first heat exchanger 100. At this time, the first valve core 100 is in the third operating position, allowing the first inlet 103 to connect to the first outlet 102 through the first throttling chamber 120'. The refrigerant, after throttling and pressure reduction, evaporates and absorbs heat in the second heat exchanger 200. The second port of the second heat exchanger 200 is connected to the second inlet 13 of the compressor. The third operating mode of the thermal management system can also be called the second heating mode.

[0054] For the fourth operating mode of the thermal management system, please refer to [link / reference]. Figure 19 In the first heat exchanger 100, the high-temperature, high-pressure refrigerant releases heat. The first valve core 100 is in its third operating position, allowing the first inlet 103 to connect to the first outlet 102 via the first throttling chamber 120'. The refrigerant, after throttling and pressure reduction, evaporates and absorbs heat in the second heat exchanger 200. The second port of the second heat exchanger 200 is connected to the second inlet 104 of the fluid management device 50. The second valve core 200 is in its second operating position, allowing the second conducting channel 210 to connect the second inlet 104 and the second outlet 105. The refrigerant then enters the third heat exchanger 300 via the fluid management device 50 to continue evaporating and absorbing heat. The fourth operating mode of the thermal management system can also be called the first dehumidification mode.

[0055] For the fifth operating mode of the thermal management system, please refer to [link / reference]. Figure 20 In the first heat exchanger 100, the high-temperature and high-pressure refrigerant releases heat. The first valve core 100 is in the first operating position. The first throttling chamber 120' connects the first receiving chamber 3211 and the first channel 3201. The second channel 3202 connects to the first outlet. The refrigerant, after throttling and depressurization, evaporates and absorbs heat in the second heat exchanger 200. The second port of the second heat exchanger 200 connects to the second inlet 104 of the fluid management device 50. The second valve core 200 is in the second operating position. The second valve core 200 connects the second conducting channel 210 to the second inlet 104 and the second outlet 105. The refrigerant enters the third heat exchanger 300 through the fluid management device 50 to continue evaporating and absorbing heat. The fifth operating mode of the thermal management system can also be called the second dehumidification mode.

[0056] For the sixth operating mode of the thermal management system, please refer to [link / reference]. Figure 21The high-temperature, high-pressure refrigerant releases heat in the first heat exchanger 100. The first valve core 100 is in the first working position. The first throttling chamber 120' connects to the first receiving chamber 3211 and the first channel 3201. The second channel 3202 connects to the second outlet 105 and the first outlet 102. The second port of the second heat exchanger 200 connects to the second inlet 13 of the compressor. The second port of the third heat exchanger 300 connects to the second inlet 13 of the compressor. The refrigerant, after throttling and pressure reduction, evaporates and absorbs heat in the second heat exchanger 200 and the third heat exchanger 300. The sixth working mode of the thermal management system can also be called the third dehumidification mode.

[0057] In one specific embodiment, the fluid management device 50 may further include a throttling section that can throttle the relatively liquid refrigerant a second time to improve the evaporation heat absorption capacity of the refrigerant entering the second heat exchanger 200 and / or the evaporation heat absorption capacity of the refrigerant entering the third heat exchanger 300.

[0058] In another specific embodiment, the block assembly includes a second channel portion 3220, the second channel portion 3220 having a second channel 3202, the second channel 3202 having an outlet in the block assembly, the second channel portion 3220 including a throttling section, the thermal management system including a first switching valve and a second switching valve, the outlet of the second channel 3202 being connected to a first port of a second heat exchanger 200 through the second switching valve, and the outlet of the second channel 3202 being connected to a first port of a third heat exchanger 300 through the second switching valve.

[0059] Please see Figure 15 The fourth embodiment is illustrated. The thermal management system also includes a throttling valve 30 and a fourth heat exchanger 400. The throttling valve 30 is located upstream of the fourth heat exchanger 400. The refrigerant, after being throttled and depressurized by the throttling valve 30, evaporates and absorbs heat in the fourth heat exchanger 400. Another port of the second heat exchanger 200 is connected to the compressor inlet through the throttling valve 30 and the fourth heat exchanger 400, or through a gas-liquid separator. The fourth heat exchanger 400 can be a plate heat exchanger or a microchannel heat exchanger. The fourth heat exchanger 400 can be used to regulate heat-generating components in the vehicle, such as the battery.

[0060] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A thermal management system, comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fluid management component, wherein the fluid management component has a gas-liquid separation chamber, a first port, a second port, a third port, a fourth port, and a fifth port; the outlet of the compressor is connected to the first port of the fluid management component through the first heat exchanger; the fifth port of the fluid management component is connected to the gas-liquid separation chamber; and the fifth port of the fluid management component is connected to the inlet of the compressor. In the first operating mode of the thermal management system, the refrigerant, after being throttled and depressurized by the fluid management component, enters the gas-liquid separation chamber and flows into the first port of the second heat exchanger through the second port of the fluid management component. The second port of the second heat exchanger is connected to the inlet of the compressor. In the second operating mode of the thermal management system, the fluid management component connects the first heat exchanger and the second heat exchanger, and the second port of the second heat exchanger is connected to the third port of the fluid management component. The fluid management component allows the throttled and depressurized refrigerant to enter the gas-liquid separation chamber and flow into the third heat exchanger through the fourth port of the fluid management component. The third heat exchanger is connected to the inlet of the compressor.

2. The thermal management system according to claim 1, characterized in that, The fluid management component includes a valve device and a gas-liquid separator. The valve device includes a first valve device and a second valve device. The gas-liquid separator has two inlets and two outlets. The valve device has one inlet and two outlets. The inlet of the first valve device is the first port of the fluid management component or is connected to the first port of the fluid management component. The inlet of the second valve device is the third port of the fluid management component or is connected to the third port of the fluid management component. The first outlet of the gas-liquid separator is the fifth port of the fluid management component or is connected to the fifth port of the fluid management component. The outlet of the compressor is connected to the inlet of the first valve device through the first heat exchanger. The first outlet of the gas-liquid separator is connected to the inlet of the compressor. The second outlet of the gas-liquid separator can be connected to the second port and / or the fourth port of the fluid management component. In the first operating mode of the thermal management system, the refrigerant, after being throttled and depressurized by the first valve device, enters the gas-liquid separator through the first inlet, and the second outlet of the gas-liquid separator is connected to the inlet of the compressor through the second heat exchanger. In the second operating mode of the thermal management system, the first heat exchanger is connected to the second heat exchanger through the first valve device, the second port of the second heat exchanger is connected to the inlet of the second valve device, the second valve device allows the throttled and depressurized refrigerant to enter the gas-liquid separator through the second inlet, and the second outlet of the gas-liquid separator is connected to the inlet of the compressor through the third heat exchanger.

3. The thermal management system according to claim 2, characterized in that, The thermal management system also includes at least one of the following operating modes: In the third operating mode of the thermal management system, the first valve device allows the refrigerant after throttling and depressurization to enter the second heat exchanger from the second outlet of the first valve device, and the second port of the second heat exchanger is connected to the inlet of the compressor. In the fourth operating mode of the thermal management system, the first valve device allows the refrigerant after throttling and depressurization to enter the second heat exchanger from the second outlet of the first valve device. The second port of the second heat exchanger is connected to the inlet of the second valve device, and the second outlet of the second valve device is connected to the inlet of the compressor through the third heat exchanger. In the fifth operating mode of the thermal management system, the first valve device allows the refrigerant after throttling and depressurization to enter the second heat exchanger from the second outlet of the first valve device. The second port of the second heat exchanger is connected to the inlet of the second valve device, and the first outlet of the second valve device is connected to the first port of the third heat exchanger through the gas-liquid separator. In the sixth operating mode of the thermal management system, the first valve device allows the refrigerant after throttling and pressure reduction to enter the gas-liquid separator through the first inlet of the gas-liquid separator, and the second outlet of the gas-liquid separator is connected to the inlet of the compressor through the second heat exchanger and the third heat exchanger.

4. The thermal management system according to claim 2 or 3, characterized in that, The first outlet of the first valve device is connected to the second port of the fluid management component, and the first outlet of the second valve device is connected to the third port of the fluid management component. The first valve device has a first conducting channel and a first throttling chamber. The inlet of the first valve device can be connected to the first outlet of the first valve device through the first conducting channel or the first throttling chamber. The inlet of the first valve device can be connected to the second outlet of the first valve device through the first conducting channel or the first throttling chamber. The second valve device has a second conducting channel and a second throttling chamber. The inlet of the second valve device can be connected to the first outlet of the second valve device through the second conducting channel or the second throttling chamber. The inlet of the second valve device can be connected to the second outlet of the second valve device through the second conducting channel or the second throttling chamber. The first outlet of the first valve device is connected to the first port of the second heat exchanger, the second outlet of the first valve device is connected to the first inlet of the gas-liquid separator, the second port of the second heat exchanger can be connected to the inlet of the compressor or the inlet of the second valve device, the first outlet of the second valve device can be connected to the first port of the third heat exchanger, the second outlet of the second valve device is connected to the second inlet of the gas-liquid separator, the second outlet of the gas-liquid separator can be connected to at least one of the first port of the second heat exchanger and the first port of the third heat exchanger, and the second port of the third heat exchanger is connected to the inlet of the compressor.

5. The thermal management system according to claim 4, characterized in that, The valve device includes a valve seat, a valve body, and a valve core. The inlet and outlet of the valve device are located in the valve body or in a pipe or block connected to the valve body. The valve body has a receiving cavity, and the valve seat and the valve core are located in the receiving cavity. The valve device has a throttling cavity, and the valve core has a guiding channel and a throttling groove. The throttling groove and the mating surface of the valve seat form the throttling cavity.

6. The thermal management system according to claim 4, characterized in that, The valve device includes a shut-off valve and a throttle valve. The valve body of the throttle valve and the shut-off valve are either separate or integrated. One port of the shut-off valve and one port of the throttle valve are connected to the inlet of the valve device. The other port of the shut-off valve is connected to the first outlet of the valve device. The other port of the throttle valve is connected to the second outlet of the valve device.

7. The thermal management system according to claim 4, characterized in that, The valve device includes two shut-off valves and two throttle valves. The valve bodies of the throttle valves and the shut-off valves are either separate or integrated. The two shut-off valves are a first shut-off valve and a second shut-off valve, and the two throttle valves are a first throttle valve and a second throttle valve. One port of the first shut-off valve and one port of the first throttle valve are connected to the inlet of the valve device, and the other port of the first shut-off valve and the other port of the first throttle valve are connected to the first outlet of the valve device. One port of the second shut-off valve and one port of the second throttle valve are connected to the inlet of the valve device, and the other port of the second shut-off valve and the other port of the second throttle valve are connected to the second outlet of the valve device.

8. The thermal management system according to claim 2 or 3, characterized in that, The thermal management system includes a third valve device having one inlet and two outlets. The third valve device is capable of communicating with at least one of the inlet and the two outlets of the third valve device. The second outlet of the gas-liquid separator is connected to the inlet of the third valve device. One outlet of the third valve device is connected to the first port of the second heat exchanger, and the other outlet of the third valve device is connected to the first port of the third heat exchanger.

9. The thermal management system according to claim 4, characterized in that, The thermal management system includes a third valve device having one inlet and two outlets. The third valve device is capable of communicating with at least one of the inlet and the two outlets of the third valve device. The second outlet of the gas-liquid separator is connected to the inlet of the third valve device. One outlet of the third valve device is connected to the first port of the second heat exchanger, and the other outlet of the third valve device is connected to the first port of the third heat exchanger.

10. The thermal management system according to claim 5, characterized in that, The thermal management system includes a third valve device having one inlet and two outlets. The third valve device is capable of communicating with at least one of the inlet and the two outlets of the third valve device. The second outlet of the gas-liquid separator is connected to the inlet of the third valve device. One outlet of the third valve device is connected to the first port of the second heat exchanger, and the other outlet of the third valve device is connected to the first port of the third heat exchanger.

11. The thermal management system according to claim 6, characterized in that, The thermal management system includes a third valve device having one inlet and two outlets. The third valve device is capable of communicating with at least one of the inlet and the two outlets of the third valve device. The second outlet of the gas-liquid separator is connected to the inlet of the third valve device. One outlet of the third valve device is connected to the first port of the second heat exchanger, and the other outlet of the third valve device is connected to the first port of the third heat exchanger.

12. The thermal management system according to claim 7, characterized in that, The thermal management system includes a third valve device having one inlet and two outlets. The third valve device is capable of communicating with at least one of the inlet and the two outlets of the third valve device. The second outlet of the gas-liquid separator is connected to the inlet of the third valve device. One outlet of the third valve device is connected to the first port of the second heat exchanger, and the other outlet of the third valve device is connected to the first port of the third heat exchanger.

13. The thermal management system according to claim 8, characterized in that, The thermal management system further includes a throttling section located upstream of the second outlet of the gas-liquid separator; or the second outlet of the gas-liquid separator is connected to the inlet of the third valve device through the throttling section; or the throttling section is part of the third valve device, including a first throttling section and a second throttling section, the first throttling section being located between the inlet of the third valve device and the first outlet of the third valve device, and the second throttling section being located between the inlet of the third valve device and the second outlet of the third valve device.

14. The thermal management system according to claim 13, characterized in that, The third valve device includes a first check valve, a second check valve, a first throttling section, a second throttling section, and a solenoid valve. The first check valve and the first throttling section are located between the inlet and the first outlet of the third valve device. The first check valve allows the inlet of the third valve device to unidirectionally connect to the first outlet of the third valve device. The second check valve, the second throttling section, and the solenoid valve are located between the inlet and the second outlet of the third valve device. The first check valve allows the inlet of the third valve device to unidirectionally connect to the second outlet of the third valve device. The solenoid valve is located upstream of the second check valve.

15. The thermal management system according to any one of claims 2 or 3, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

16. The thermal management system according to claim 4, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

17. The thermal management system according to claim 5, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

18. The thermal management system according to claim 6, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

19. The thermal management system according to claim 7, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

20. The thermal management system according to claim 8, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

21. The thermal management system according to claim 9, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

22. The thermal management system according to claim 10, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

23. The thermal management system according to claim 11, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

24. The thermal management system according to claim 12, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

25. The thermal management system according to claim 13, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

26. The thermal management system according to claim 14, characterized in that, The compressor inlet includes a first inlet and a second inlet, the first outlet of the gas-liquid separator is connected to the first inlet, the second port of the second heat exchanger is connected to the second inlet of the compressor, and the second port of the third heat exchanger is connected to the second inlet. The thermal management system further includes a throttling element and a fourth heat exchanger. The throttling element can throttle and reduce the pressure of the refrigerant entering the fourth heat exchanger. The second port of the second heat exchanger can be connected to the second inlet of the compressor through the throttling element and the fourth heat exchanger.

27. A thermal management system, comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fluid management component, wherein the fluid management component includes a valve device and a gas-liquid separator, the valve device including a first valve device and a second valve device, the gas-liquid separator having two inlets and two outlets, the valve device having one inlet and two outlets, the outlet of the compressor being connected to the inlet of the first valve device via the first heat exchanger, the first outlet of the gas-liquid separator being connected to the inlet of the compressor, and the second outlet of the gas-liquid separator being capable of connecting to a first port of the second heat exchanger and / or the first port of the third heat exchanger; the first heat exchanger... The first outlet of the valve device is connected to the first port of the second heat exchanger, the second outlet of the first valve device is connected to the first inlet of the gas-liquid separator, the second port of the second heat exchanger can be connected to the inlet of the compressor or the inlet of the second valve device, the first outlet of the second valve device can be connected to the first port of the third heat exchanger, the second outlet of the second valve device is connected to the second inlet of the gas-liquid separator, the second outlet of the gas-liquid separator can be connected to at least one of the first port of the second heat exchanger and the first port of the third heat exchanger, and the second port of the third heat exchanger is connected to the inlet of the compressor. The first valve device has a first conducting channel and a first throttling cavity. The inlet of the first valve device can be connected to the first outlet of the first valve device through the first conducting channel, and the inlet of the first valve device can be connected to the second outlet of the first valve device through the first throttling cavity. The second valve device has a second conducting channel and a second throttling cavity. The inlet of the second valve device can be connected to the first outlet of the second valve device through the second conducting channel, and the inlet of the second valve device can be connected to the second outlet of the second valve device through the second throttling cavity.

Images