Thermal management system and vehicle

Abstract

A thermal management system (100) and a vehicle. The thermal management system (100) comprises a first refrigerant loop (L1) and a second refrigerant loop (L2); the first refrigerant loop (L1) comprises a compressor (101) and a refrigerant flow channel of a first condenser (102); the second refrigerant loop (L2) comprises the compressor (101) and a first passage (103); the outlet of the compressor (101) is further connected to the inlet of the first passage (103), and the outlet of the first passage (103) is connected to the inlet of the compressor (101). The vehicle comprises the thermal management system. The thermal management system can implement normal use of an air conditioning system in low-temperature environments.

Description

Thermal management system and vehicle

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 17, 2024, with application number 202410069512.7, and priority to the Chinese patent application entitled “Thermal Management System and Vehicle,” all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of thermal management technology, and in particular to thermal management systems and vehicles. Background Art

[0003] Vehicles are widely used as convenient means of transportation. Air conditioning systems, a crucial component of vehicles, regulate the cabin temperature and provide a comfortable riding environment for passengers. However, in temperatures of -18°C or lower, the low temperature and pressure of the coolant at the compressor inlet can cause the compressor to malfunction, rendering the air conditioning system inoperable. Therefore, further research is needed into thermal management in electric vehicles. Summary of the Invention

[0004] The present application provides a thermal management system and a vehicle to enable normal use of an air-conditioning system in a low-temperature environment.

[0005] In a first aspect, the present application provides a thermal management system, the thermal management system comprising a first refrigerant circuit and a second refrigerant circuit;

[0006] The aforementioned first refrigerant circuit includes a refrigerant flow path of the compressor and the first condenser;

[0007] The second refrigerant circuit includes the compressor and a first passage. The outlet of the compressor is also connected to the inlet of the first passage, and the outlet of the first passage is connected to the inlet of the compressor.

[0008] In the above scheme, the above-mentioned second refrigerant circuit can send the high-pressure and high-temperature refrigerant output by the compressor back to the inlet of the compressor to increase the temperature and pressure of the refrigerant at the inlet of the compressor, ensure the temperature and pressure required for the operation of the compressor, so as to achieve normal operation of the compressor at low temperatures, and thus achieve normal use of the air-conditioning system in low temperature environments.

[0009] For example, since the compressor can be started and operated briefly in a low-temperature environment, in the above solution, the second refrigerant circuit can return the high-pressure and high-temperature refrigerant output by the compressor to the compressor inlet during this brief operation period to increase the temperature and pressure of the refrigerant at the compressor inlet, thereby prompting the compressor to continue operating, thereby achieving normal operation of the compressor in low-temperature environments and further ensuring normal use of the air-conditioning system in low-temperature environments.

[0010] In a possible implementation, the second refrigerant circuit further includes a first valve device, an inlet of the first valve device is connected to the inlet of the first passage, and an outlet of the first valve device is connected to the outlet of the first passage.

[0011] In the above solution, a first valve device is provided in the first passage, and the flow rate and / or pressure of the refrigerant sent back to the compressor inlet can be controlled by adjusting the first valve device, so that the compressor can operate normally.

[0012] In a possible implementation, the first refrigerant circuit further includes a second valve device, the inlet of the second valve device is connected to the outlet of the compressor, and the outlet of the second valve device is connected to the inlet of the refrigerant flow channel of the first condenser.

[0013] In the above scheme, a second valve device is set between the first condenser and the compressor. The pressure of the refrigerant sent back to the compressor inlet can be increased by reducing the opening of the second valve device or closing the second valve device, thereby quickly increasing the pressure at the compressor inlet.

[0014] In one possible implementation, the first condenser is an air-cooled condenser for heating the passenger compartment.

[0015] The existing heater core heating method uses the high-temperature refrigerant output by the compressor to transfer heat to the coolant, which then flows to the heater core to heat the air to heat the passenger compartment. This requires secondary heating and reduces heat exchange efficiency. In the above solution, the air is directly heated by the air-cooled condenser to heat the passenger compartment, which improves heat exchange efficiency and heat utilization.

[0016] In one possible implementation, the thermal management system further includes a third refrigerant circuit and a first coolant circuit. The third refrigerant circuit includes the refrigerant flow path of the compressor and the second condenser, while the first coolant circuit includes the coolant flow path of the second condenser, a heater core, and a first water pump. This solution, combined with the first condenser, provides passenger compartment heating, rapidly increasing the cabin temperature.

[0017] In a possible implementation, the third refrigerant circuit further includes a third valve device, the inlet of the third valve device is connected to the outlet of the compressor, and the outlet of the third valve device is connected to the inlet of the refrigerant flow channel of the second condenser.

[0018] In the above solution, a third valve device is provided between the second condenser and the compressor. The pressure of the refrigerant sent back to the compressor inlet can be increased by reducing the opening of the third valve device, thereby quickly increasing the pressure at the compressor inlet.

[0019] In a possible implementation, the thermal management system further includes a fourth refrigerant circuit; the fourth refrigerant circuit includes the compressor, the refrigerant flow channel of the third condenser, and the evaporator.

[0020] In the above solution, the fourth refrigerant circuit can also be used to cool, dehumidify or other operations to adjust the temperature of the passenger compartment.

[0021] In one possible implementation, the aforementioned thermal management system further includes a fifth refrigerant circuit and a second coolant circuit;

[0022] The fifth refrigerant circuit includes the compressor, the refrigerant flow path of the third condenser, and the evaporator;

[0023] The second coolant circuit includes the coolant flow channel of the first condenser, the heater core and the first water pump.

[0024] In the above solution, the fifth refrigerant circuit can be used to achieve passenger compartment temperature control (such as cooling) or humidity control or not perform heat exchange operation. The above second coolant circuit can be used to achieve passenger compartment heating.

[0025] In a possible implementation, the thermal management system further includes a fourth valve device, the inlet of the fourth valve device is connected to the outlet of the compressor, and the outlet of the fourth valve device is connected to the inlet of the refrigerant flow channel of the third condenser.

[0026] In the above solution, a fourth valve device is provided between the third condenser and the compressor. The pressure of the refrigerant sent back to the compressor inlet can be increased by reducing the opening of the fourth valve device, thereby quickly increasing the pressure at the compressor inlet.

[0027] In a possible implementation, the outlet of the refrigerant flow channel of the first condenser is connected to the outlet of the refrigerant flow channel of the third condenser.

[0028] In the above solution, the low-temperature refrigerant output from the first and third condensers can flow to the evaporator to cool the passenger compartment, improving cooling efficiency. Furthermore, for solutions that include a heat dissipation circuit, whether heating or cooling the passenger compartment, the low-temperature refrigerant output from the condensers can be used to cool the battery or electric drive.

[0029] In a possible implementation, the thermal management system further includes a fifth valve device, the inlet of the fifth valve device is connected to the outlet of the refrigerant flow channel of the first condenser, and the outlet of the fifth valve device is connected to the inlet of the compressor.

[0030] In the above solution, a fifth valve device is provided between the refrigerant flow outlet of the first condenser and the inlet of the compressor 101. The pressure of the refrigerant returning to the compressor can be adjusted by changing the opening of the fifth valve device. In addition, the fifth valve device also has the function of adjusting the flow rate.

[0031] In a possible implementation, the first refrigerant circuit further includes an evaporator.

[0032] In the above solution, the first refrigerant circuit further includes an evaporator that can be used to cool or dehumidify the passenger compartment of the vehicle or not perform heat exchange operations.

[0033] In one possible implementation, the aforementioned first refrigerant circuit further includes a refrigerant flow channel of the cooler;

[0034] The thermal management system further includes a heat dissipation circuit, which includes a coolant flow channel of the cooler, a target device and a second water pump. The target device includes one or more of the following: an electric drive, a battery and a radiator.

[0035] In the above solution, the thermal management system further includes a heat dissipation circuit to achieve heat dissipation of the target device and ensure normal operation of the target device.

[0036] In a possible implementation, the first refrigerant circuit further includes a refrigerant container, and the refrigerant container is disposed at the outlet of the refrigerant flow channel of the first condenser, or the refrigerant container is disposed at the inlet of the compressor.

[0037] In the above solution, the refrigerant container can be used to store the refrigerant in the refrigerant circuit. Optionally, it can also realize functions such as drying the refrigerant and performing enterprise separation.

[0038] In a second aspect, the present application provides a vehicle comprising a thermal management system as described in any one of the first aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figures 1 to 4 are schematic diagrams of the structure of a thermal management system provided in an embodiment of the present application;

[0040] 4A and 4B are schematic structural diagrams of another thermal management system provided in an embodiment of the present application;

[0041] 5 to 21 are schematic structural diagrams of another thermal management system provided in an embodiment of the present application;

[0042] Figure 22 is a schematic structural diagram of the vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] In the embodiment of the present application, "multiple" refers to two or more. In the embodiment of the present application, "and / or" is used to describe the association relationship of associated objects, indicating three relationships that can exist independently. For example, A and / or B can be expressed as follows: A exists alone, B exists alone, or A and B exist at the same time. The description methods such as "at least one of a1, a2, ... and an" used in the embodiment of the present application include the situation where any one of a1, a2, ... and an exists alone, and also include any combination of any multiple of a1, a2, ... and an, each of which can exist alone; for example, the description method of "at least one of a, b and c" includes the situation where a is alone, b is alone, c is alone, a and b combination, a and c combination, b and c combination, or abc combination.

[0044] In this application, the terms "first," "second," and the like are used to distinguish between identical or similar items having substantially the same function or effect. It should be understood that "first," "second," and "nth" do not have a logical or temporal dependency, nor do they limit the quantity or order of execution. It should also be understood that although the following description uses the terms "first," "second," and the like to describe various elements, these elements should not be limited by these terms. These terms are simply used to distinguish one element from another.

[0045] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between the various embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0046] For example, the connection described in the embodiments of the present application refers to the connectivity of the coolant channel or the refrigerant channel, or the connectivity achieved by adjusting the relevant valve device, etc.

[0047] In order to achieve the normal use of the air-conditioning system in a low-temperature environment, the existing solution is to use a heater to preheat the coolant or refrigerant so that the compressor can work normally in a low-temperature environment. However, the heater is expensive and requires additional electricity consumption, which reduces the cruising range. In order to achieve the normal use of the air-conditioning system in a low-temperature environment at a low cost, after in-depth analysis, it was found that the compressor can be started and run briefly even in a low-temperature environment. Based on this, an embodiment of the present application provides a thermal management system. The thermal management system can use this short running time to return the high-temperature and high-pressure refrigerant output by the compressor to the inlet of the compressor to increase the temperature and pressure of the refrigerant at the inlet of the compressor, thereby prompting the compressor to continue running to achieve the normal operation of the compressor at low temperatures.

[0048] The embodiments of the present application are applicable to vehicles, and are also applicable to thermal management scenarios with other cooling (heat dissipation) and / or heating requirements. This application is mainly introduced by taking the application scenario of a vehicle as an example. For example, the embodiments of the present application can be applied to traditional fuel vehicles and electric vehicles. Among them, the electric vehicle is a vehicle suitable for driving by an electric drive. The electric vehicle can be a pure electric vehicle (pure electric vehicle / battery electric vehicle, pure EV / battery EV), a hybrid electric vehicle (hybrid electric vehicle, HEV), a range extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV) or a new energy vehicle (NEV), etc.

[0049] The thermal management system of the embodiment of the present application can use water to heat or dissipate heat from the managed object. In some possible implementations, the managed object may be a passenger compartment, a battery, an electric drive, and a control system, etc. In the present application, water is used to transfer heat energy. In some possible implementations, the thermal management system of the present application can also use coolants such as water and refrigerants to heat or dissipate heat from the managed object. Among them, the refrigerant can transfer heat through evaporation and condensation. It should be understood that water can also be replaced by other coolants to transfer heat energy, and the embodiment of the present application does not specifically limit this.

[0050] In a specific implementation, the thermal management system 100 provided in an embodiment of the present application includes a refrigerant circuit L1 and a refrigerant circuit L2. Refrigerant circuit L1 includes a compressor 101 and a refrigerant flow path for a first condenser 102. The refrigerant flow path is used to circulate refrigerant. Refrigerant circuit L2 includes the compressor 101 and a first passage 103. For ease of understanding, the following exemplary description is provided with reference to the accompanying drawings.

[0051] In a possible implementation, please refer to FIG1 , which shows a schematic diagram of a thermal management system 100 provided in an embodiment of the present application. As shown in FIG1 , the first condenser 102 includes a refrigerant flow channel, d 11 represents the inlet of the refrigerant flow channel of the first condenser 102, d 12 The heat management system 100 includes a refrigerant circuit L1, which includes a compressor 101 and a refrigerant flow path of the first condenser 102. For example, the outlet of the compressor 101 and the inlet d 11 Connection; outlet d 12The first passage 103 is connected to the inlet of the compressor 101. In addition, the thermal management system 100 further includes a refrigerant circuit L2, which includes the compressor 101 and a first passage 103. For example, the outlet of the compressor 101 is also connected to the inlet of the first passage 103, and the outlet of the first passage 103 is connected to the inlet of the compressor 101. For example, the first passage 103 can be a pipeline or a flow channel integrated on a substrate, etc., and this embodiment of the present application does not limit this.

[0052] For example, the first condenser 102 shown in FIG1 is used to heat the passenger compartment of the vehicle. The first condenser 102 can be, for example, an air-cooled condenser. In a specific implementation, a refrigerant is provided in the refrigerant circuit L1. After the compressor 101 starts working, the compressor 101 outputs a high-temperature and high-pressure refrigerant. A portion of the high-temperature and high-pressure refrigerant flows back to the compressor 101 through the first passage 103 to increase the temperature and pressure of the refrigerant at the inlet of the compressor 101. Another portion of the high-temperature and high-pressure refrigerant is input into the first condenser 102 for heat exchange, so as to be used to heat the air in the passenger compartment to heat the passenger compartment. After heat exchange, the refrigerant output from the first condenser 102 flows back to the compressor 101.

[0053] In one possible implementation, the first condenser 102 shown in FIG1 may be a condenser inside the passenger compartment, for example, it may be provided in the air conditioning box of the passenger compartment.

[0054] In one possible implementation, the refrigerant circuit L2 may further include a first valve device 104, as shown in FIG2 , for example. The inlet of the first valve device 104 is connected to the inlet of the first passage 103, and the outlet of the first valve device 104 is connected to the outlet of the first passage 103. For example, the first valve device 104 can adjust the opening. The first valve device 104 may be, for example, an expansion valve, etc. Alternatively, the first valve device 104 may be a valve with a switching function, such as a shut-off valve (SOV), etc. It will be understood that the description of the type of the first valve device 104 here is only an example and does not constitute a limitation on the embodiments of the present application. The first valve device 104 is provided in the first passage 103, and the flow rate and / or pressure of the refrigerant sent back to the inlet of the compressor 101 can be controlled by adjusting the first valve device 104 so that the compressor 101 can operate normally.

[0055] In a possible implementation, the refrigerant circuit L1 may further include a second valve device 105, as shown in FIG3 or FIG4. The inlet of the second valve device 105 is connected to the outlet of the compressor 101, and the outlet of the second valve device 105 is connected to the inlet of the refrigerant flow channel of the first condenser 102. 11connection. Exemplarily, the second valve device 105 can adjust the opening. The second valve device 105 can be, for example, an expansion valve, etc. Alternatively, the second valve device 105 can be a valve with a switching function, such as a stop valve, etc. It can be understood that the description of the type of the second valve device 105 here is only an example and does not constitute a limitation on the embodiments of the present application. The second valve device 105 is arranged between the first condenser 102 and the compressor 101. The pressure of the refrigerant sent back to the inlet of the compressor 101 can be increased by reducing the opening of the second valve device 105 or closing the second valve device 105, thereby quickly increasing the pressure at the inlet of the compressor 101. In addition, the second valve device 105 also has the function of adjusting the flow rate.

[0056] In a possible implementation, the refrigerant circuit L1 shown in Figures 1 to 4 may further include a valve device 1A. For example, see Figure 4A for example. Figure 4A is mainly taken as an example of the refrigerant circuit L1 shown in Figure 4. The position of the valve device 1A in the refrigerant circuit L1 in Figures 1 to 3 is similar and will not be described in detail. As shown in Figure 4A, the inlet of the valve device 1A is connected to the outlet d of the refrigerant flow channel of the first condenser 102. 12 connection. The outlet of the valve device 1A is connected to the inlet of the compressor 101. Exemplarily, the valve device 1A can adjust the opening. The valve device 1A can be, for example, an expansion valve, etc. It can be understood that the description of the type of valve device 1A here is only an example and does not constitute a limitation on the embodiments of the present application. A valve device 1A is provided between the refrigerant flow channel outlet of the first condenser 102 and the inlet of the compressor 101, and the pressure of the refrigerant returning to the compressor 101 can be adjusted by changing the opening of the valve device 1A. In addition, the valve device 1A also has the function of adjusting the flow rate.

[0057] In a possible implementation, the refrigerant circuit L1 shown in Figures 1 to 4 may further include an evaporator 1B. For example, see Figure 4B. Figure 4B is mainly taken as an example of the refrigerant circuit L1 shown in Figure 4. The position of the evaporator 1B in the refrigerant circuit L1 in Figures 1 to 3 is similar and will not be described in detail. As shown in Figure 4B, for example, the inlet of the evaporator 1B is connected to the outlet d of the refrigerant flow channel of the first condenser 102. 12 The outlet of the evaporator 1B is connected to the inlet of the compressor 101 .

[0058] For example, the evaporator 1B shown in FIG4B can be used to cool or dehumidify the passenger compartment of the vehicle or not to perform heat exchange operation. In a specific implementation, after the compressor 101 starts working, the compressor 101 outputs a high-temperature and high-pressure refrigerant. The high-temperature and high-pressure refrigerant is input into the first condenser 102 for heat exchange, so as to heat the air in the passenger compartment for heating the passenger compartment. After heat exchange, what is output from the first condenser 102 is a high-temperature and high-pressure liquid refrigerant. The high-temperature and high-pressure liquid refrigerant passes through the evaporator 1B to cool or dehumidify the passenger compartment and then flows back to the compressor 101. Alternatively, in another possible implementation, after the compressor 101 starts working, the evaporator 1B may not perform cooling or dehumidification, but mainly serves as a container for the refrigerant.

[0059] In a possible implementation, the refrigerant circuit L1 may further include a valve device 1C. The valve device 1C may be provided at the inlet of the evaporator 1B. The inlet of the valve device 1C is connected to the outlet of the refrigerant flow channel of the first condenser 102. 12 The outlet of the valve device 1C is connected to the inlet of the evaporator 1B. For example, the valve device 1C can adjust the opening. The valve device 1C can be, for example, an expansion valve. It can be understood that the description of the type of valve device 1C here is only an example and does not constitute a limitation on the embodiments of the present application. The valve device 1C can be used to cool and reduce the pressure of the high-temperature and high-pressure liquid refrigerant from the first condenser 102 to obtain a low-temperature and low-pressure refrigerant input to the evaporator 1B. In addition, the valve device 1C can adjust the flow rate.

[0060] In one possible implementation, the thermal management system 100 provided in the embodiment of the present application further includes a refrigerant circuit L3 and a coolant circuit L4. The refrigerant circuit L3 includes the refrigerant flow channel of the compressor 101 and the second condenser 106. The coolant circuit L4 includes the coolant flow channel of the second condenser 106, the heater core 107, and the first water pump 108. The coolant flow channel is used to circulate the coolant. For ease of understanding, see Figure 5 for an example. Figure 5 is shown in combination with Figure 4 as an example, and Figures 1 to 3 are the same and will not be repeated.

[0061] For example, as shown in the thermal management system 100 in FIG5 , the second condenser 106 includes a refrigerant flow channel and a coolant flow channel. 21 Indicates the inlet of the refrigerant flow channel, d 22 Indicates the outlet of the refrigerant flow channel. 23 Indicates the inlet of the coolant channel, d 24 The heat management system 100 includes a refrigerant circuit L3, which includes a refrigerant flow path of the compressor 101 and the second condenser 106. For example, the outlet of the compressor 101 and the inlet d 21 Connection; outlet d 22Connected to the inlet of the compressor 101. In addition, the thermal management system 100 also includes a coolant circuit L4, and the refrigerant circuit L2 includes a coolant flow channel of the second condenser 106, a heater core 107 and a first water pump 108. For example, the outlet d of the coolant flow channel 24 The outlet of the first water pump 108 is connected to the inlet of the heater core 107. The outlet of the heater core 107 is connected to the inlet of the coolant flow channel. 23 It is understood that the position of the first water pump 108 in the coolant circuit L4 is only an example. The first water pump 108 can be set at any position in the coolant circuit L4, and the embodiment of the present application does not limit this.

[0062] For example, the second condenser 106 shown in FIG. 5 can be used to perform heat exchange to heat the vehicle's passenger compartment. The second condenser 106 can be, for example, a water-cooled condenser. In a specific implementation, refrigerant is provided in the refrigerant circuit L3. Coolant is provided in the coolant circuit L4. After the compressor 101 starts operating, it outputs high-temperature, high-pressure refrigerant. A portion of this high-temperature, high-pressure refrigerant flows back to the compressor 101 through the first passage 103, raising the temperature and pressure of the refrigerant at the compressor 101 inlet. A portion of this high-temperature, high-pressure refrigerant is input into the second condenser 106 for heat exchange. The coolant in the coolant circuit L4 absorbs heat and increases its temperature. This heated coolant is driven by the first water pump 108 to flow to the heater core 107. The heater core 107 heats the air in the passenger compartment, providing heating for the passenger compartment. Furthermore, after heat exchange, the second condenser 106 outputs high-temperature, high-pressure liquid refrigerant, which flows back to the compressor 101.

[0063] In one possible implementation, as shown in Figure 5 , after compressor 101 is activated, refrigerant circuit L1 can also operate to heat the passenger compartment. The specific operational implementation can be found in the description of Figure 1 and will not be repeated here. In this implementation, both circuits can be used to heat the passenger compartment, rapidly increasing the cabin temperature.

[0064] In one possible implementation, in the thermal management system 100 shown in FIG5 , the refrigerant circuit L1 and the coolant circuit L4 may work simultaneously, or only one circuit may work. The working circuit may be selected as needed, and this embodiment of the present application does not impose any restrictions on this.

[0065] In a possible implementation, as shown in FIG5 , the outlet d of the first condenser 102 12 The outlet d of the second condenser 106 22 The flow connections are then connected together to the compressor inlet.

[0066] In a possible implementation, the refrigerant circuit L3 may further include a third valve device 109, as shown in FIG5 . The inlet of the third valve device 109 is connected to the outlet of the compressor 101 , and the outlet of the third valve device 109 is connected to the inlet of the refrigerant flow channel of the second condenser 106 . 21 connection. Exemplarily, the third valve device 109 can adjust the opening. The third valve device 109 can be, for example, an expansion valve, etc. Alternatively, the third valve device 109 can be a valve with a switching function, such as a stop valve, etc. It can be understood that the description of the type of the third valve device 109 here is only an example and does not constitute a limitation on the embodiments of the present application. The third valve device 109 is arranged between the second condenser 106 and the compressor 101. The pressure of the refrigerant sent back to the inlet of the compressor 101 can be increased by reducing the opening of the third valve device 109 or closing the third valve device 109, thereby quickly increasing the pressure at the inlet of the compressor 101. In addition, the third valve device 109 also has the function of adjusting the flow rate.

[0067] In a possible implementation, the thermal management system 100 provided in the embodiment of the present application further includes a refrigerant circuit L5, for example, as shown in FIG6 . As shown in FIG6 , the refrigerant circuit L5 includes a compressor 101, a refrigerant flow channel of the second condenser 106, and an evaporator 110. For example, the inlet of the evaporator 110 is connected to the outlet d of the refrigerant flow channel of the second condenser 106. 22 The outlet of the evaporator 110 is connected to the inlet of the compressor 101 .

[0068] For example, the evaporator 110 shown in FIG. 6 can be used to cool or regulate the temperature of a vehicle's passenger compartment. In a specific implementation, after the compressor 101 starts operating, it outputs high-temperature, high-pressure refrigerant. This high-temperature, high-pressure refrigerant is input into the second condenser 106 for heat exchange. After heat exchange, the second condenser 106 outputs high-temperature, high-pressure liquid refrigerant. This refrigerant flows to the evaporator 110. The evaporator 110 cools or dehumidifies the passenger compartment. The evaporator 110 discharges low-temperature, low-pressure gaseous refrigerant, which flows back to the compressor 101. Alternatively, the refrigerant circuit L5 can operate in conjunction with the refrigerant circuit L1 (or the coolant circuit L4). In this case, the refrigerant circuit L5 can cooperate with the refrigerant circuit L1 (or the coolant circuit L4) to regulate the temperature of the passenger compartment. Alternatively, in another possible implementation, after compressor 101 starts operating, refrigerant circuit L5 primarily functions to circulate the refrigerant or serve as a refrigerant container, meaning that evaporator 110 may not perform heat exchange. In this case, evaporator 110 does not regulate the temperature or humidity of the passenger compartment. For example, when compressor 101 is started in a low-temperature environment, evaporator 110 may not perform heat exchange.

[0069] In a possible implementation, the refrigerant circuit L5 may further include a fourth valve device 111, as shown in FIG6 . The fourth valve device 111 may be provided at the inlet of the evaporator 110 . The inlet of the fourth valve device 111 is connected to the outlet d of the refrigerant flow channel of the second condenser 106 . 22 The outlet of the fourth valve device 111 is connected to the inlet of the evaporator 110. Exemplarily, the fourth valve device 111 can adjust the opening. The fourth valve device 111 can be, for example, an expansion valve, etc. Alternatively, the fourth valve device 111 can be a valve with a switching function, such as a stop valve, etc. It can be understood that the description of the type of the fourth valve device 111 here is only an example and does not constitute a limitation on the embodiments of the present application. The fourth valve device 111 can be used to cool and reduce the pressure of the high-temperature and high-pressure liquid refrigerant from the second condenser 106 to obtain a low-temperature and low-pressure refrigerant to be input into the evaporator 110. In addition, the fourth valve device 111 can adjust the flow rate.

[0070] In one possible implementation, in the thermal management system 100 shown in FIG. 5 or FIG. 6 , the heater core 107 and the first water pump 108 in the coolant circuit L4 may be omitted. In other words, the coolant circuit L4 does not exist. The passenger compartment can be heated by the first condenser 102 instead of the heater core 107.

[0071] For example, the refrigerant circuit L1 and the refrigerant circuit L2 are not limited to those shown in Figures 1 to 6 above, and may also be implemented in other ways. In one possible implementation, please refer to Figure 7, which shows a schematic diagram of another thermal management system 100 provided in an embodiment of the present application. As shown in Figure 7, the first condenser 102 includes a refrigerant flow channel and a coolant flow channel. 11 represents the inlet of the refrigerant flow channel of the first condenser 102, d 12 Indicates the outlet of the refrigerant flow channel of the first condenser 102. 13 Indicates the inlet of the coolant channel, d 14 Indicates the outlet of the coolant flow channel. In addition, the thermal management system 100 includes a refrigerant circuit L1 and a refrigerant circuit L2. For the introduction of the two refrigerant circuits, please refer to the relevant introduction of Figure 1 above, which will not be repeated here. The thermal management system 100 also includes a coolant circuit L6. The coolant circuit L6 may include the coolant flow channel of the first condenser 102, the heater core 107 and the first water pump 108. For example, the outlet d of the coolant flow channel 14 The outlet of the first water pump 108 is connected to the inlet of the heater core 107. The outlet of the heater core 107 is connected to the inlet of the coolant flow channel. 13It is understood that the position of the first water pump 108 in the coolant circuit L6 is only an example. The first water pump 108 can be set at any position in the coolant circuit L6, and the embodiment of the present application does not limit this.

[0072] For example, the first condenser 102 shown in FIG. 7 can be a water-cooled condenser. In a specific implementation, refrigerant is provided in the refrigerant circuit L1. Coolant is provided in the coolant circuit L6. After the compressor 101 starts operating, it outputs high-temperature, high-pressure refrigerant. A portion of this high-temperature, high-pressure refrigerant flows back to the compressor 101 through the first passage 103, raising the temperature and pressure of the refrigerant at the compressor 101 inlet. Another portion of this high-temperature, high-pressure refrigerant is input into the first condenser 102 for heat exchange. The coolant in the coolant circuit L6 absorbs heat and increases its temperature. This heated coolant is driven by the first water pump 108 to flow to the heater core 107. The heater core 107 heats the passenger compartment air, providing heating for the passenger compartment. Furthermore, after heat exchange, the first condenser 102 outputs high-temperature, high-pressure liquid refrigerant, which flows back to the compressor 101.

[0073] In a possible implementation, the refrigerant circuit L2 may further include a first valve device 104, as shown in Figure 8. The description of the first valve device 104 in Figure 8 may refer to the description of Figure 2, and will not be repeated here.

[0074] In one possible implementation, the refrigerant circuit L1 may further include a second valve device 105, as shown in Figure 9 or Figure 10. The description of the second valve device 105 in Figure 9 or Figure 10 can refer to the description of Figure 3 or Figure 4 above, and is not repeated here.

[0075] In a possible implementation, the thermal management system 100 provided in the embodiment of the present application further includes a refrigerant circuit L7, for example, as shown in FIG11 . As shown in FIG11 , the refrigerant circuit L7 includes a compressor 101, a refrigerant flow channel of the first condenser 102, and an evaporator 110. For example, the inlet of the evaporator 110 is connected to the outlet d of the refrigerant flow channel of the first condenser 102. 12 The outlet of the evaporator 110 is connected to the inlet of the compressor 101. For example, the evaporator 110 shown in FIG11 can be used to adjust the temperature or humidity of the passenger compartment of the vehicle or not to perform heat exchange operation. The specific implementation process can be referred to the relevant description of FIG6 above and will not be repeated here.

[0076] In a possible implementation, the refrigerant circuit L7 may further include a fourth valve device 111, as shown in Figure 11. The description of the fourth valve device 111 in Figure 11 can refer to the description of Figure 6 above, and will not be repeated here.

[0077] In one possible implementation, the thermal management system 100 provided in the embodiment of the present application may further include a refrigerant circuit L8. This refrigerant circuit L8 comprises a compressor 101, a refrigerant flow path of a third condenser 112, and an evaporator 110. This refrigerant circuit L8 can be used to regulate the temperature or humidity of the passenger compartment or to perform no heat exchange. For ease of understanding, please refer to Figures 12 and 13 for illustrative purposes.

[0078] For example, Figure 12 is taken as an example in combination with Figure 4. The thermal management system 100 shown in Figures 1 to 3 may also include a refrigerant circuit L8. The connection relationship of the refrigerant circuit L8 in the thermal management system 100 shown in Figures 1 to 3 can be referred to Figure 12 and will not be described in detail. Figure 13 is taken as an example in combination with Figure 10. The thermal management system 100 shown in Figures 7 to 9 may also include a refrigerant circuit L8. The connection relationship of the refrigerant circuit L8 in the thermal management system 100 shown in Figures 7 to 9 can be referred to Figure 13 and will not be described in detail.

[0079] As shown in FIG12 or FIG13, the third condenser 112 includes a refrigerant flow channel, d 31 represents the inlet of the refrigerant flow channel of the third condenser 112, d 32 The outlet of the refrigerant flow channel of the third condenser 112 is represented by . The thermal management system 100 includes a refrigerant circuit L8, which includes a compressor 101, a refrigerant flow channel of the third condenser 112, and an evaporator 110. For example, the outlet of the compressor 101 and the inlet d of the refrigerant flow channel of the third condenser 112 are connected. 31 Connection; outlet d of the refrigerant flow channel 32 Connected to the inlet of the evaporator 110. Optionally, if there is a fourth valve device 111, then the outlet d of the refrigerant flow channel 32 The inlet of the fourth valve device 111 is connected, and the outlet of the fourth valve device 111 is connected to the inlet of the evaporator 110. The outlet of the evaporator 110 is connected to the inlet of the compressor 101.

[0080] In a possible implementation, the refrigerant circuit L8 may further include a fifth valve device 113, as shown in FIG12 or FIG13 . The inlet of the fifth valve device 113 is connected to the outlet of the compressor 101, and the outlet of the fifth valve device 113 is connected to the inlet of the refrigerant flow channel of the third condenser 112. 31connection. Exemplarily, the fifth valve device 113 can adjust the opening. The fifth valve device 113 can be, for example, an expansion valve, etc. Alternatively, the fifth valve device 113 can be a valve with a switching function, such as a stop valve, etc. It can be understood that the description of the type of the fifth valve device 113 here is only an example and does not constitute a limitation on the embodiments of the present application. The fifth valve device 113 is arranged between the third condenser 112 and the compressor 101. The pressure of the refrigerant sent back to the inlet of the compressor 101 can be increased by reducing the opening of the fifth valve device 113 or closing the fifth valve device 113, thereby quickly increasing the pressure at the inlet of the compressor 101. In addition, the fifth valve device 113 also has the function of adjusting the flow rate.

[0081] For example, the third condenser 112 shown in Figures 12 or 13 is used to cool the high-temperature refrigerant output by the compressor 101. The cooled refrigerant is then delivered to the evaporator 110 for use in regulating the temperature or humidity of the vehicle's passenger compartment, or without heat exchange. The third condenser 112 can be, for example, an air-cooled condenser. In a specific implementation, refrigerant is provided in the refrigerant circuit L8. After the compressor 101 starts operating, it outputs high-temperature, high-pressure refrigerant. This high-temperature, high-pressure refrigerant is input into the third condenser 112 for heat exchange and cooling. After heat exchange, the third condenser 112 outputs high-temperature, high-pressure liquid refrigerant. This high-temperature, high-pressure liquid refrigerant passes through the fourth valve assembly 111 and flows to the evaporator 110. The evaporator 110 evaporates the refrigerant, absorbing heat from the passenger compartment air to regulate the temperature or humidity of the passenger compartment. After evaporation and absorption of heat, the refrigerant flows out of the evaporator 110 as a low-temperature, low-pressure gaseous refrigerant, which then flows back to the compressor 101. Alternatively, the refrigerant circuit L8 can operate in conjunction with the coolant circuit L6. In this case, the refrigerant circuit L8 can cooperate with the coolant circuit L6 to regulate the temperature of the passenger compartment. Alternatively, in another possible implementation, after the compressor 101 starts operating, the refrigerant circuit L8 is primarily used to circulate the refrigerant or act as a container for the refrigerant, meaning that the evaporator 110 does not perform heat exchange. In this case, the evaporator 110 does not cool the passenger compartment or regulate the temperature of the passenger compartment. For example, when the compressor 101 is started in a low-temperature environment, the evaporator 110 does not perform heat exchange.

[0082] In a possible implementation, as shown in FIG12 or FIG13, the outlet d of the first condenser 102 12 The outlet d of the third condenser 112 32 The flow connections are then connected together to the inlet of the evaporator 110 .

[0083] In a possible implementation, the third condenser 112 may be a condenser outside the passenger compartment, that is, may be disposed outside the passenger compartment. It is understood that this is merely an example and does not constitute a limitation to the embodiments of the present application.

[0084] In one possible implementation, both refrigerant circuits L7 and L8 shown in Figure 13 can be used to cool the passenger compartment. In a specific implementation, refrigerant circuits L7 and L8 can simultaneously cool the passenger compartment, improving cooling efficiency. Alternatively, one of the two circuits can be selected to cool the passenger compartment, saving energy. The specific choice depends on the actual application and is not limited in this embodiment of the present application.

[0085] In a possible implementation, in the thermal management system 100 shown in FIG. 11 or FIG. 13 , the heater core 107 and the first water pump 108 in the coolant circuit L6 may not be provided, that is, the coolant circuit L6 does not exist.

[0086] In one possible implementation, the refrigerant circuit L1 shown in Figures 5 to 13 may also include a valve device 1A. The position, connection method, and function of the valve device 1A in the refrigerant circuit L1 can be exemplified by referring to the relevant description in Figure 4A above and will not be repeated here.

[0087] In one possible implementation, the thermal management system 100 may further include a heat dissipation circuit L9. The heat dissipation circuit L9 may include a coolant flow channel of a cooler 114, a target device 115, and a second water pump 116. The target device 115 may, for example, include one or more of the following: an electric drive, a battery, and a radiator. The electric drive is a device that drives the vehicle. The electric drive may, for example, include a power distribution unit (PDU), a microcontroller unit (MCU), a modular drivetrain concept (MDC), an electric drive unit (EDU), or a motor. In addition, the refrigerant flow channel of the cooler 114 is located in the refrigerant circuit L1. For ease of understanding, please refer to Figures 14 and 15 for examples.

[0088] For example, Figure 14 is used in conjunction with Figure 12, and Figure 15 is used in conjunction with Figure 13. The thermal management system 100 shown in Figures 1 to 11 may also include a heat dissipation circuit L9. The connection relationship of the heat dissipation circuit L9 in the thermal management system 100 shown in Figures 1 to 11 can be referred to in Figures 14 or 15, and will not be repeated here.

[0089] As shown in FIG14 or FIG15, the cooler 114 includes a refrigerant flow channel and a coolant flow channel.41 Indicates the inlet of the refrigerant flow channel, d 42 Indicates the outlet of the refrigerant flow channel, d 43 Indicates the inlet of the coolant channel, d 44 Indicates the outlet of the coolant flow channel. The refrigerant flow channel is located in the refrigerant circuit L1. For example, the inlet d of the refrigerant flow channel of the cooler 114 41 The outlet d of the refrigerant flow channel of the first condenser 102 12 The outlet d of the refrigerant flow channel of the cooler 114 42 Connect to the compressor inlet.

[0090] In a possible implementation, as shown in FIG14 or FIG15, the inlet d of the refrigerant flow channel of the cooler 114 41 Also connected to the refrigerant flow outlet d of the third condenser 112 32 connect.

[0091] Optionally, the refrigerant circuit L1 may further include a sixth valve device 117. The sixth valve device 117 may be provided at the inlet of the cooler 114. Specifically, the inlet of the sixth valve device 117 is connected to the outlet of the first condenser 102. 12 Optionally, the inlet of the sixth valve device 117 is also connected to the outlet of the third condenser 112. 32 The outlet of the sixth valve device 117 is connected to the inlet d of the refrigerant flow channel of the cooler 114. 41 For example, the sixth valve device 117 can reduce the temperature and pressure of the high-temperature and high-pressure liquid refrigerant from the first condenser 102 and / or the third condenser 112 , and output the low-temperature and low-pressure refrigerant to the cooler 114 .

[0092] As shown in FIG14 or FIG15, the thermal management system 100 may further include a heat dissipation circuit L9. The heat dissipation circuit L9 may include a coolant flow channel of a cooler 114, a target device 115, and a second water pump 116. Specifically, the outlet d of the coolant flow channel of the cooler 114 is 44 The outlet of the target device 115 is connected to the inlet of the second water pump 116. The outlet of the second water pump 116 is connected to the inlet of the coolant flow channel of the cooler 114. 43 It is understood that the position of the second water pump 116 in the heat dissipation circuit L9 is only an example. The second water pump 116 can be set at any position in the heat dissipation circuit L9, and the embodiment of the present application does not limit this.

[0093] Exemplarily, the cooler 114 can remove heat from the heat dissipation circuit L9 through heat exchange to achieve heat dissipation for the target device. Exemplarily, in a specific implementation, the coolant in the heat dissipation circuit L9. After the compressor 101 starts operating, the compressor 101 outputs high-temperature, high-pressure refrigerant. The high-temperature, high-pressure refrigerant is input into the first condenser 102 and / or the third condenser 112 for heat exchange. After heat exchange, the output from the first condenser 102 and / or the third condenser 112 is high-temperature, high-pressure liquid refrigerant. This refrigerant is input into the cooler 114 for heat exchange. In addition, in the heat dissipation circuit L9, the second water pump 116 drives the coolant to flow into the coolant flow channel of the cooler 114. The coolant flowing out of the coolant flow channel flows back to the second water pump 116 through the target device 115. During this process, the low-temperature refrigerant in the coolant flow channel of the cooler 114 absorbs heat from the coolant flowing through the coolant flow channel of the cooler 114. That is, the heat of the heat dissipation circuit L9 is absorbed, thereby achieving heat dissipation of the target device 115. In addition, the refrigerant that has absorbed the heat flows back to the compressor 101.

[0094] In one possible implementation, the heat dissipation circuit L9 may include a battery heat dissipation circuit and / or an electric drive heat dissipation circuit. The battery heat dissipation circuit and the electric drive heat dissipation circuit may be controlled by a multi-way valve. For ease of understanding, please refer to Figures 16 to 18 for example. Figures 16 to 18 are mainly taken as an example in conjunction with Figure 13. The thermal management system 100 shown in Figures 1 to 12 may also include a battery heat dissipation circuit and / or an electric drive heat dissipation circuit. Battery heat dissipation circuit and / or electric drive heat dissipation circuit. The connection relationship in the thermal management system 100 shown in Figures 1 to 12 can be referred to Figures 16 to 18 and will not be repeated here.

[0095] As shown in FIG16 , the thermal management system 100 further includes a nine-way valve 118, a battery 119, an electric driver 120, a radiator 121, a water pump 122, a water pump 123, a one-way valve 124, a three-way valve 125, and a kettle 126. The nine-way valve 118 includes nine interfaces, as shown in FIG16 , where 1 to 9 represent the nine interfaces. The three-way valve 125 includes three interfaces, where the three interfaces are represented by d 51 d 52 and d 53 . The connection relationship between the nine-way valve 118, battery 119, electric driver 120, radiator 121, water pump 122, water pump 123, one-way valve 124, three-way valve 125 and kettle 126 in the thermal management system 100 is shown in Figure 16 and will not be described one by one. In a specific implementation, the above-mentioned thermal management system 100 may also include a controller (not shown in Figure 16). The controller can control the connectivity and closure of each interface of the nine-way valve 118. By controlling the connectivity of the interfaces in the nine-way valve 118, various cooling modes, heating modes or heat dissipation modes can be achieved.

[0096] In one possible implementation, the thermal management system 100 shown in FIG. 16 can connect port 1 and port 8 of the nine-way valve 118. Coolant in the coolant circuit L6 then flows through port 8 and port 1, and is then driven by the first water pump 108 to flow to the heater core 107. Heater core 107 heats the passenger compartment air, providing warmth for the passenger compartment.

[0097] In one possible implementation, the thermal management system 100, such as that shown in FIG16 , can control the connection between interface 3 and interface 4 of the nine-way valve 118, and control the connection between interface 6 and interface 7. This forms a heat dissipation circuit for the battery 119. Specifically, the high-temperature coolant flowing through the battery 119 flows through interfaces 4 and 3 of the nine-way valve 118 to the coolant flow channel of the cooler 114, where it is exchanged and removed by the cooler 114. The low-temperature coolant flowing out of the coolant flow channel of the cooler 114 flows back to the battery 119 through interfaces 6 and 7 of the nine-way valve 118, thereby dissipating heat from the battery 119. The heat dissipation circuit of the battery 119 is driven by a water pump 122. In the heat dissipation circuit of the battery 119, the battery 119 is equivalent to the target device 115 in the heat dissipation circuit L9, and the water pump 122 is equivalent to the second water pump 116 in the heat dissipation circuit L9.

[0098] In one possible implementation, the thermal management system 100, such as that shown in FIG16 above, can control the connection between interface 2 and interface 5 of the nine-way valve 118. Then, a heat dissipation circuit of the electric driver 120 can be formed. Specifically, the high-temperature coolant flowing through the electric driver 120 flows to the radiator 121 through the interface 2 and interface 5 of the nine-way valve 118, and is cooled and dissipated by the radiator 121. The low-temperature coolant flowing out of the radiator 121 flows back to the electric driver 120, thereby realizing the heat dissipation of the electric driver 120. The heat dissipation circuit of the electric driver 120 is driven by a water pump 123.

[0099] In one possible implementation, the electric driver 120 can be cooled by the cooler 114, for example, see FIG17 for an example. The interface 2 and the interface 3 of the nine-way valve 118 can be controlled to be connected, and the interface 5 and the interface 6 of the nine-way valve 118 can be controlled to be connected. Then, a heat dissipation circuit of the electric driver 120 can be formed. Specifically, the high-temperature coolant flowing through the electric driver 120 flows to the coolant flow channel of the cooler 114 through the interface 2 and the interface 3 of the nine-way valve 118, and the heat is removed by heat exchange through the cooler 114. The low-temperature coolant flowing out of the coolant flow channel of the cooler 114 flows to the radiator 121 through the interface 4 and the interface 6 of the nine-way valve 118. The coolant flowing out of the radiator 121 flows back to the electric driver 120, thereby realizing the heat dissipation of the electric driver 120. The heat dissipation circuit of the electric driver 120 is driven by the water pump 123. In the heat dissipation circuit of the electric driver 120 , the electric driver 120 is equivalent to the target device 115 in the heat dissipation circuit L9 , and the water pump 123 is equivalent to the second water pump 116 in the heat dissipation circuit L9 .

[0100] Another possible implementation is shown in FIG18 . As shown in FIG18 , the thermal management system 100 further includes a five-way valve 127, a four-way valve 128, a battery 119, an electric driver 120, a radiator 121, a water pump 122, a water pump 123, a three-way valve 129, a kettle 126, and a kettle 130. The five-way valve 127 includes five interfaces, which are represented by d 61 d 62 d 63 d 64 and d 65 The four-way valve 128 includes four interfaces, which are represented by d 71 d 72 d 73 and d 74 The three-way valve 129 includes three interfaces, wherein the three interfaces are represented by d 81 d 82 and d 83 . The connection relationship between the five-way valve 127, the four-way valve 128, the battery 119, the electric driver 120, the radiator 121, the water pump 122, the water pump 123, the three-way valve 129, the kettle 126 and the kettle 130 in the thermal management system 100 is shown in Figure 18 and will not be described one by one. In a specific implementation, the above-mentioned thermal management system 100 may also include a controller (not shown in Figure 18). The controller can control the connectivity and closing of each interface of the five-way valve 127 and the four-way valve 128. By controlling the connectivity of the interfaces in the five-way valve 127 and the four-way valve 128, various cooling modes, heating modes or heat dissipation modes can be achieved.

[0101] In one possible implementation, the thermal management system 100 shown in FIG. 18 may control the interface d of the five-way valve 127.61 and interface d 63 Then, the coolant in the coolant circuit L6 flows through the interface d under the drive of the first water pump 108. 63 and interface d 61 , and then flows through the coolant flow channel of the first condenser 102 to the heater core 107. The coolant flowing out of the heater core 107 flows back to the first water pump 108 to form a loop. Optionally, the coolant loop L6 can also include a kettle 130 for replenishing the coolant.

[0102] In one possible implementation, the thermal management system 100 shown in FIG. 18 may control the interface d of the five-way valve 127. 62 and interface d 65 Connecting and controlling the port d of the four-way valve 128 71 and interface d 74 Then, a heat dissipation circuit of the electric driver 120 can be formed. Specifically, the high-temperature coolant flowing through the electric driver 120 passes through the interface d of the four-way valve 128. 74 and interface d 71 The coolant flows to the cooler 114. After heat exchange in the cooler 114, it passes through the interface d of the five-way valve 127. 62 and interface d 65 Flows back to the electric driver 120. Thus, heat dissipation of the electric driver 120 is achieved. The heat dissipation circuit of the electric driver 120 is driven by the water pump 123. In addition, the kettle 126 can be used to replenish the coolant. It is also possible to control whether the coolant flowing back to the electric driver 120 flows through the radiator 121 by controlling the three-way valve 129. The embodiment of the present application is not limited to this. In the heat dissipation circuit of the electric driver 120, the electric driver 120 is equivalent to the target device 115 in the above-mentioned heat dissipation circuit L9, and the water pump 123 is equivalent to the second water pump 116 in the heat dissipation circuit L9.

[0103] In one possible implementation, the thermal management system 100 shown in FIG. 18 may control the interface d of the five-way valve 127. 65 and interface d 64 Connecting and controlling the port d of the four-way valve 128 72 and interface d 71 Then, a heat dissipation circuit of the battery 119 can be formed. Specifically, the high-temperature coolant flowing through the battery 119 passes through the interface d of the four-way valve 128. 72 and interface d 71 The coolant flows to the cooler 114 and removes heat through the cooler 114. The low-temperature coolant flowing out of the coolant flow channel of the cooler 114 passes through the interface d of the five-way valve 127. 65 and interface d 64The water flows back to the battery 119, thereby dissipating heat from the battery 119. The heat dissipation circuit of the battery 119 is driven by a water pump 122. In the heat dissipation circuit of the battery 119, the battery 119 is equivalent to the target device 115 in the heat dissipation circuit L9, and the water pump 122 is equivalent to the second water pump 116 in the heat dissipation circuit L9.

[0104] It will be appreciated that the description of the thermal management system 100 shown in Figures 16 to 18 above primarily illustrates the implementation of a partial passenger compartment heating mode, a battery cooling mode, and an electric drive cooling mode. However, in a specific implementation, a controller can be connected to various valves in the thermal management system 100 and, by controlling the opening and closing of each valve, implement any of the following modes: simultaneous passenger compartment and battery cooling, separate passenger compartment cooling, separate battery cooling, battery cooling and passenger compartment heating, natural battery cooling, automatic drive cooling, simultaneous passenger compartment and battery heating, battery heating and passenger compartment dehumidification, separate passenger compartment heating, separate battery heating, and complete vehicle dehumidification. This design allows electric vehicles to freely switch between cooling or heating modes for one or more of the passenger compartment, battery, and drive, helping to meet the diverse needs of various users and enhance the driving experience.

[0105] In a possible implementation, the thermal management system further includes a refrigerant container, which may be, for example, a liquid storage tank or a gas-liquid separator.

[0106] For example, if the refrigerant container is a liquid storage tank, the liquid storage tank can be arranged at the outlet of the refrigerant flow channel of the first condenser 102. For example, see FIG19. Specifically, the outlet d of the refrigerant flow channel of the first condenser 102 is 12 The outlet of the liquid storage tank can be connected to the outlet of the refrigerant flow channel of the third condenser 112. 32 After being merged, the flows are connected to the evaporator 110 and the cooler 114 .

[0107] For example, if the refrigerant container is a gas-liquid separator, the gas-liquid separator can be installed at the inlet of the compressor 101. For example, see Figure 20. Specifically, the outlet of the gas-liquid separator is connected to the inlet of the compressor 101. The inlet of the gas-liquid separator can be connected to the outlet of the refrigerant flow channel of the first passage 103, the evaporator 110, and the cooler 114.

[0108] In another possible implementation, the gas-liquid separator can be positioned at the intersection of the inlet of the compressor 101 and the outlet of the first passage 103. For example, see Figure 21. Specifically, the outlet of the gas-liquid separator is connected to the inlet of the compressor 101 and the outlet of the first passage 103. The inlet of the gas-liquid separator can also be connected to the outlet of the refrigerant flow channel of the evaporator 110 and the cooler 114.

[0109] It is understood that Figures 19 to 21 are used as examples in conjunction with Figure 16. In a specific implementation, the thermal management system 100 shown in Figures 1 to 15 and 18 may also include the refrigerant container. The connection relationship of the refrigerant container in the thermal management system 100 shown in Figures 1 to 15 and 18 can be exemplified by referring to Figures 19, 20, or 21 above, and will not be further described.

[0110] It is understood that the components included in each circuit in the various possible thermal management systems 100 shown above are merely examples and do not constitute a limitation on the embodiments of the present application. In specific implementations, each circuit may include more or fewer components, and the embodiments of the present application do not impose any limitation on this.

[0111] The present application also provides a vehicle, as shown in FIG22 . The vehicle 2200 may include the thermal management system 100 described in any of the possible embodiments described above. For details, please refer to the above description and will not be repeated here.

[0112] In summary, in a specific implementation, since the compressor 101 can also be started and operated briefly in a low-temperature environment, based on this, in the embodiment of the present application, during this brief operation period, the high-pressure and high-temperature refrigerant output by the compressor 101 can be sent back to the inlet of the compressor 101 through the refrigerant circuit L2 to increase the temperature and pressure of the refrigerant at the inlet of the compressor 101. This in turn encourages the compressor 101 to continue operating, thereby achieving normal operation of the compressor 101 in low-temperature environments, and further achieving normal use of the air-conditioning system in low-temperature environments.

[0113] It should be understood that in the various embodiments of the present application, the size of the serial number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0114] It will also be understood that the term “comprise” (also known as “includes,” “including,” “comprises,” and / or “comprising”) when used in this specification specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0115] It should also be understood that references throughout this specification to "one embodiment," "an embodiment," or "one possible implementation" mean that specific features, structures, or characteristics associated with that embodiment or implementation are included in at least one embodiment of the present application. Therefore, the appearance of "in one embodiment," "in an embodiment," or "one possible implementation" throughout this specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A thermal management system, characterized in that, The thermal management system includes a first refrigerant circuit and a second refrigerant circuit; The first refrigerant circuit includes a compressor and a refrigerant flow passage of a first condenser; The second refrigerant circuit includes the compressor and a first passage. The outlet of the compressor is also connected to the inlet of the first passage, and the outlet of the first passage is connected to the inlet of the compressor.

2. The thermal management system according to claim 1, wherein The second refrigerant circuit further includes a first valve device. The inlet of the first valve device is connected to the inlet of the first passage, and the outlet of the first valve device is connected to the outlet of the first passage.

3. The thermal management system according to claim 1 or 2, characterized in that The first refrigerant circuit further includes a second valve device. The inlet of the second valve device is connected to the outlet of the compressor, and the outlet of the second valve device is connected to the inlet of the refrigerant flow passage of the first condenser.

4. The thermal management system according to any one of claims 1-3, characterized in that, The first condenser is an air-cooled condenser for heating the passenger compartment.

5. The thermal management system according to claim 4, wherein, The thermal management system further includes a third refrigerant circuit and a first coolant circuit; The third refrigerant circuit includes the compressor and a refrigerant flow passage of a second condenser; The first coolant circuit includes a coolant flow passage of the second condenser, a heater core, and a first water pump.

6. The thermal management system according to claim 5, characterized in that, The third refrigerant circuit further includes a third valve device. The inlet of the third valve device is connected to the outlet of the compressor, and the outlet of the third valve device is connected to the inlet of the refrigerant flow passage of the second condenser.

7. The thermal management system according to any one of claims 4-6, characterized in that, The thermal management system further includes a fourth refrigerant circuit; the fourth refrigerant circuit includes the compressor, a refrigerant flow passage of a third condenser, and an evaporator.

8. The thermal management system according to any one of claims 1-3, characterized in that, The thermal management system further includes a fifth refrigerant circuit and a second coolant circuit; The fifth refrigerant circuit includes the compressor, a refrigerant flow passage of a third condenser, and an evaporator; The second coolant circuit includes a coolant flow passage of the first condenser, a heater core, and a first water pump.

9. The thermal management system according to claim 7 or 8, characterized in that, The thermal management system further includes a fourth valve device. The inlet of the fourth valve device is connected to the outlet of the compressor, and the outlet of the fourth valve device is connected to the inlet of the refrigerant flow passage of the third condenser.

10. The thermal management system according to any one of claims 7-9, characterized in that, The outlet of the refrigerant flow passage of the first condenser is connected in a converging manner to the outlet of the refrigerant flow passage of the third condenser.

11. The thermal management system according to any one of claims 1-10, characterized in that, The thermal management system further includes a fifth valve device. The inlet of the fifth valve device is connected to the outlet of the refrigerant flow passage of the first condenser, and the outlet of the fifth valve device is connected to the inlet of the compressor.

12. The thermal management system according to claim 4, characterized in that, The first refrigerant circuit further includes an evaporator.

13. The thermal management system according to any one of claims 1-12, characterized in that, The first refrigerant circuit further includes a refrigerant flow passage of a cooler; The thermal management system further includes a heat dissipation circuit. The heat dissipation circuit includes a coolant flow passage of the cooler, a target device, and a second water pump. The target device includes one or more of the following: an electric drive, a battery, and a radiator.

14. The thermal management system according to any one of claims 1-13, characterized in that, The first refrigerant circuit further includes a refrigerant container. The refrigerant container is provided at the outlet of the refrigerant flow passage of the first condenser, or the refrigerant container is provided at the inlet of the compressor.

15. A vehicle, characterized in that, The vehicle includes the thermal management system according to any one of claims 1-14.

Images