Integrated thermal management system

Abstract

This application provides an integrated thermal management system, including an integrated heat pump, functional components, a battery, an air conditioning assembly, and a compressor. The integrated heat pump allows the flow of coolant and refrigerant. The integrated heat pump includes a first water pump, a second water pump, a four-way reversing valve, an integrated water valve, a first electronic expansion valve, a condenser, and a chiller. The integrated water valve is connected to both the chiller and the condenser. The four-way reversing valve is connected to the condenser. The first electronic expansion valve is connected between the condenser and the chiller. The functional components, battery, air conditioning assembly, and compressor are all connected to the integrated heat pump. This design ensures the normal operation of the cooling and air conditioning systems of the thermal management system while reducing the number of components, thereby reducing the number of external pipes between components. This avoids energy loss caused by excessive and long external pipes, and helps improve the heat exchange efficiency of the thermal management system.

Description

Technical Field

[0001] This application relates to the field of vehicle thermal management technology, and in particular to an integrated thermal management system. Background Technology

[0002] New energy vehicles are widely used in the market due to their energy-saving and high-efficiency advantages.

[0003] Compared to traditional gasoline vehicles, the thermal management system of new energy vehicles adds components such as batteries, electric heaters, heat pumps, motors, three-in-one assemblies, autonomous driving controllers, and electronic water pumps. It not only needs to meet the cooling and heating requirements of the passenger compartment but also needs to manage the temperature of components such as batteries, motors, three-in-one assemblies, and autonomous driving controllers. Furthermore, to bring greater economic benefits to users and improve driving range, it needs to frequently switch operating modes to facilitate heat exchange between different components.

[0004] Due to the addition of many components and the increasing number of operating modes, the piping of the air conditioning and cooling systems in existing new energy vehicles is quite complex, resulting in an increase in the size and weight of the vehicle. In addition, the large number and length of the piping affect the heat exchange efficiency of the air conditioning and cooling systems. Summary of the Invention

[0005] Therefore, this application provides an integrated thermal management system that can optimize the piping composition of the thermal management system and improve heat exchange efficiency.

[0006] Specifically, the following technical solutions are included:

[0007] This application provides an integrated thermal management system, including an integrated heat pump, functional components, a battery, an air conditioning assembly, and a compressor;

[0008] The integrated heat pump allows the flow of water coolant and air conditioning refrigerant. The integrated heat pump includes a first water pump, a second water pump, a four-way reversing valve, an integrated water valve, a first electronic expansion valve, a condenser, and a chiller. The integrated water valve is connected to the chiller and the condenser respectively. The four-way reversing valve is connected to the condenser. The first electronic expansion valve is connected between the condenser and the chiller.

[0009] The functional components, the battery, the air conditioning assembly, and the compressor are all connected to the integrated heat pump.

[0010] In an optional embodiment, the integrated thermal management system further includes a radiator and a fan, the radiator being connected to the functional component and the integrated water valve respectively, and the fan being used to dissipate heat from the functional component.

[0011] In an optional embodiment, the condenser is a water-cooled condenser.

[0012] In an optional embodiment, the integrated thermal management system further includes a three-way water valve, which includes an inlet, a first outlet, and a second outlet. The inlet is connected to the air conditioning assembly, the first outlet is connected to the second water pump and the integrated water valve, and the second outlet is connected to the condenser.

[0013] In an optional embodiment, the integrated thermal management system further includes a first check valve and a second check valve;

[0014] The inlet end of the first check valve is connected to the integrated water valve, and the outlet end of the first check valve is connected to the inlet end of the second water pump and the inlet end of the second check valve, respectively.

[0015] The liquid outlet of the second one-way valve is connected to the condenser.

[0016] In an optional embodiment, the integrated water valve includes a first input terminal, a second input terminal, a third input terminal, a first output terminal, a second output terminal, and a third output terminal, wherein the first input terminal is connected to the first output terminal, the second input terminal is connected to the second output terminal, and the third input terminal is connected to the third output terminal.

[0017] The first input terminal is connected to the refrigerator, and the first output terminal is connected to the liquid inlet of the first one-way valve.

[0018] The second input terminal is connected to the refrigerator, and the second output terminal is connected to the functional component;

[0019] The third input terminal is connected to the battery, and the third output terminal is connected to the refrigerator.

[0020] In an optional embodiment, the inlet end of the first water pump is connected to the functional component, and the outlet end of the first water pump is connected to the air conditioning assembly.

[0021] The integrated thermal management system also includes an electric heater, which is connected to the outlet of the second water pump and the battery, respectively.

[0022] In an optional embodiment, the integrated thermal management system further includes a second electronic expansion valve and a three-way air conditioning connector;

[0023] The second electronic expansion valve is connected between the refrigeration unit and the air conditioning assembly;

[0024] The first end of the three-way air conditioning connector is connected to the four-way reversing valve, the second end of the three-way air conditioning connector is connected to the air conditioning assembly, and the third end of the three-way air conditioning connector is connected to the refrigeration unit and the condenser, respectively.

[0025] In an optional embodiment, the four-way directional valve has a first state and a second state;

[0026] In the first state, the output end of the compressor is connected to the condenser through the four-way reversing valve, and the input end of the compressor is connected to the first end of the three-way air conditioner connector through the four-way reversing valve.

[0027] In the second state, the output end of the compressor is connected to the first end of the three-way air conditioner connector through the four-way reversing valve, and the input end of the compressor is connected to the condenser through the four-way reversing valve.

[0028] In an optional embodiment, the integrated thermal management system has a first cooling circuit, a second cooling circuit, and a third cooling circuit;

[0029] When the first cooling circuit is open, the first water pump is turned on, the first outlet of the three-way water valve is closed, and the second outlet of the three-way water valve is opened.

[0030] When the second cooling circuit is open, both the first and second water pumps are turned on, the first outlet of the three-way water valve is opened, and the second outlet of the three-way water valve is closed.

[0031] When the third cooling circuit is open, the second water pump is turned on, and the first outlet of the three-way water valve is closed.

[0032] In an optional embodiment, the integrated thermal management system has a first air conditioning circuit, a second air conditioning circuit, a third air conditioning circuit, and a fourth air conditioning circuit;

[0033] When the first air conditioning circuit is connected, the first electronic expansion valve opens, the second electronic expansion valve closes, the four-way reversing valve is in the first state, and the air conditioning assembly stops operating.

[0034] When the second air conditioning circuit is open, both the first electronic expansion valve and the second electronic expansion valve are open, the four-way reversing valve is in the first state, and the air conditioning assembly is running;

[0035] When the third air conditioning circuit is connected, the first electronic expansion valve opens, the second electronic expansion valve closes, the four-way reversing valve is in the second state, and the air conditioning assembly stops operating.

[0036] When the fourth air conditioning circuit is activated, both the first electronic expansion valve and the second electronic expansion valve are open, the four-way reversing valve is in the second state, and the air conditioning assembly is in operation.

[0037] In an optional embodiment, the integrated thermal management system has at least one of the following operating modes:

[0038] In the first operating mode, the first cooling circuit is activated;

[0039] In the second operating mode, the second cooling circuit is turned on and the electric heater is turned off.

[0040] In the third operating mode, the first cooling circuit, the third cooling circuit, and the first air conditioning circuit are connected, and the electric heater is turned off.

[0041] In the fourth operating mode, the first cooling circuit, the third cooling circuit, and the second air conditioning circuit are connected, and the electric heater is turned off.

[0042] In the fifth operating mode, the second cooling circuit is activated and the fan is deactivated.

[0043] In the sixth operating mode, the second cooling circuit and the third air conditioning circuit are connected, and the fan is turned on or off according to the temperature of the coolant in the water circuit.

[0044] In the seventh operating mode, the second cooling circuit and the fourth air conditioning circuit are connected, and the fan is turned on or off according to the temperature of the coolant in the water circuit.

[0045] In the eighth operating mode, the second cooling circuit is activated and the electric heater is turned on.

[0046] In the ninth operating mode, the first cooling circuit and the third cooling circuit are connected, and the electric heater is turned on.

[0047] The beneficial effects of the technical solution provided in this application embodiment include at least the following: by integrating the first water pump, the second water pump, the four-way reversing valve, the integrated water valve, the first electronic expansion valve, the condenser, and the refrigeration unit into a whole, the number of components in the thermal management system is reduced while ensuring the normal operation of the cooling system and the air conditioning system of the thermal management system. This reduces the number of external pipes between the components, avoids system energy loss caused by too many or too long external pipes, and helps to improve the heat exchange efficiency of the thermal management system. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the structure of the integrated thermal management system provided in the embodiments of this application;

[0050] Figure 2 This is a schematic diagram of the structure of an integrated heat pump provided in an embodiment of this application;

[0051] Figure 3 A schematic diagram of the water coolant flow direction of the first cooling circuit provided in the embodiments of this application, and a schematic diagram of the integrated thermal management system in the first working mode;

[0052] Figure 4 A schematic diagram of the water coolant flow direction of the second cooling circuit provided in the embodiments of this application, and a schematic diagram of the integrated thermal management system in the second working mode;

[0053] Figure 5 A schematic diagram of the coolant flow direction in the third cooling circuit provided in this application embodiment;

[0054] Figure 6 A schematic diagram of the refrigerant flow direction of the first air conditioning circuit provided in this application embodiment;

[0055] Figure 7 This is a schematic diagram of the refrigerant flow direction of the second air conditioning circuit provided in an embodiment of this application;

[0056] Figure 8 A schematic diagram of the refrigerant flow direction of the third air conditioning circuit provided in this application embodiment;

[0057] Figure 9 A schematic diagram of the refrigerant flow direction of the fourth air conditioning circuit provided in this application embodiment;

[0058] Figure 10 A schematic diagram of the integrated thermal management system provided in the embodiments of this application in a third working mode;

[0059] Figure 11 A schematic diagram of the integrated thermal management system provided in the embodiments of this application in the fourth operating mode;

[0060] Figure 12 A schematic diagram of the integrated thermal management system provided in the embodiments of this application in the fifth working mode;

[0061] Figure 13 A schematic diagram of the integrated thermal management system provided in the embodiments of this application in the sixth working mode;

[0062] Figure 14 A schematic diagram of the integrated thermal management system provided in the embodiments of this application in the seventh working mode;

[0063] Figure 15 A schematic diagram of the integrated thermal management system provided in the embodiments of this application in the eighth working mode;

[0064] Figure 16 This is a schematic diagram of the integrated thermal management system provided in the ninth operating mode according to an embodiment of this application.

[0065] The reference numerals in the figure are respectively:

[0066] 1-Integrated heat pump; 11-First water pump; 12-Second water pump; 13-Four-way reversing valve; 14-Integrated water valve; 141-First input terminal; 142-Second input terminal; 143-Third input terminal; 144-First output terminal; 145-Second output terminal; 146-Third output terminal; 15-First electronic expansion valve; 16-Condenser; 17-Refrigeration unit; 2-Functional component; 21-Autopilot controller; 22-Three-in-one assembly; 23-Electric drive assembly; 3-Battery; 4-Air conditioning assembly; 5-Compressor; 6-Three-way water valve; 61-Inlet; 62-First outlet; 63-Second outlet; 71-First check valve; 72-Second check valve; 8-Electric heater; 91-Radiator; 92-Fan; 101-Second electronic expansion valve; 102-Three-way air conditioning connector; 103-Expansion tank.

[0067] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0068] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0069] In the embodiments of this application, directional terms such as "upper," "lower," and "side" are generally used in the following ways: Figure 1The relative positions shown are based on the given information, and these directional terms are used only to more clearly describe the relationships between structures, not to describe absolute positions. Positions may change when the product is placed in different orientations; for example, "up" and "down" may be interchanged.

[0070] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art. Some technical terms appearing in the embodiments of this application are described below.

[0071] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0072] This application provides an integrated thermal management system applicable to new energy vehicles such as hybrid electric vehicles, pure electric vehicles, and fuel cell vehicles.

[0073] like Figure 1 As shown, the integrated thermal management system includes an integrated heat pump 1, a functional component 2, a battery 3, an air conditioning assembly 4, and a compressor 5.

[0074] The integrated heat pump 1 allows the flow of water coolant and air conditioning refrigerant. The integrated heat pump 1 includes a first water pump 11, a second water pump 12, a four-way reversing valve 13, an integrated water valve 14, a first electronic expansion valve 15, a condenser 16, and a refrigerator 17. The integrated water valve 14 is connected to the refrigerator 17 and the condenser 16 respectively. The four-way reversing valve 13 is connected to the condenser 16. The first electronic expansion valve 15 is connected between the condenser 16 and the refrigerator 17.

[0075] Functional component 2, battery 3, air conditioning assembly 4 and compressor 5 are all connected to integrated heat pump 1.

[0076] The integrated thermal management system has a cooling system and an air conditioning system. The water coolant flows in the cooling system loop and exchanges heat with the functional components 2, battery 3 and other cooling elements, thereby cooling the elements.

[0077] For example, the integrated thermal management system cools down the element to be cooled by the cooling system, or by using both the cooling system and the air conditioning system to cool down the element to be cooled, so as to ensure the normal operation of the element to be cooled and prevent the element to be cooled from being damaged due to overheating.

[0078] The refrigerant flows in the air conditioning system circuit to achieve the vehicle's cooling and heating functions, and to regulate the air in the passenger compartment.

[0079] The four-way reversing valve 13 is used to change the flow direction of the refrigerant, thereby switching the cooling and heating modes of the air conditioning system.

[0080] One end of the first electronic expansion valve 15 is connected to the condenser 16, and the other end is connected to the refrigeration unit 17. The first electronic expansion valve 15 is used to control the flow of air conditioning refrigerant between the condenser 16 and the refrigeration unit 17.

[0081] For example, functional component 2 includes an autonomous driving controller 21, a three-in-one assembly 22, and an electric drive assembly 23. The three-in-one assembly 22 refers to an on-board charging and distribution assembly that integrates an on-board charger (OBC), an on-board DC / DC converter, and a power distribution unit (PDU).

[0082] For example, the integrated heat pump (1) includes a housing containing cooling pipes and air conditioning pipes. A first water pump 11, a second water pump 12, a four-way reversing valve 13, an integrated water valve 14, and a first electronic expansion valve 15 are all built into the housing. A condenser 16 and a chiller 17 are externally located outside the housing. By integrating multiple components into a single module, the number of scattered components in the integrated thermal management system is significantly reduced, the number of external pipes is reduced, and the size and weight of the integrated thermal management system are lowered.

[0083] For example, the air conditioning assembly 4 is an HVAC (Heating, Ventilation and Air Conditioning) module. The air conditioning assembly 4 includes components such as a heater core, an evaporator, and a blower. The air conditioning assembly 4 can deliver suitable air to the passenger compartment to create a comfortable environment for the passenger compartment.

[0084] The integrated thermal management system provided in this application integrates the first water pump 11, the second water pump 12, the four-way reversing valve 13, the integrated water valve 14, the first electronic expansion valve 15, the condenser 16, and the chiller 17 into a whole. While ensuring the normal operation of the cooling system and the air conditioning system of the thermal management system, it reduces the number of components in the thermal management system, thereby reducing the number of external pipelines between the components. This avoids the energy loss caused by too many or too long external pipelines and helps to improve the heat exchange efficiency of the thermal management system.

[0085] In a further embodiment, the condenser 16 is a water-cooled condenser.

[0086] Compared to the air-cooled condensers commonly used in the prior art, the water-cooled condenser used in this application embodiment has a smaller volume and weight, which is beneficial for reducing the volume and weight of the integrated thermal management system and helps to achieve lightweight vehicle design.

[0087] In a further embodiment, the integrated thermal management system also includes a three-way water valve 6, which includes an inlet 61, a first outlet 62, and a second outlet 63. The inlet 61 is connected to the air conditioning assembly 4, the first outlet 62 is connected to the second water pump 12 and the integrated water valve 14, and the second outlet 63 is connected to the condenser 16.

[0088] The three-way water valve 6 is used to regulate the flow direction of coolant in the cooling system. For example... Figure 1 As shown, the right-side interface of the three-way water valve 6 is the inlet 61, and the water coolant can flow into the inlet 61 from the air conditioning assembly 4 and flow out from the first outlet 62 or the second outlet 63.

[0089] like Figure 1 As shown, the upper interface of the three-way water valve 6 is the first outlet 62. The first outlet 62 is connected to the pipeline between the integrated water valve 14 and the second water pump 12. That is, the first outlet 62 and the integrated water valve 14 are connected in parallel to the inlet end of the second water pump 12.

[0090] like Figure 1 As shown, the left-side interface of the three-way water valve 6 is the second outlet 63, which is connected to one liquid inlet of the condenser 16. Optionally, the pipeline between the integrated water valve 14 and the second water pump 12 is further provided with a branch, which connects the integrated water valve 14 and the second outlet 63 respectively. The coolant flowing from the integrated water valve 14 can merge with the coolant flowing from the second outlet 63 and flow together into the liquid inlet of the condenser 16.

[0091] In a further embodiment, the integrated thermal management system further includes a first check valve 71 and a second check valve 72. The inlet of the first check valve 71 is connected to the integrated water valve 14, and the outlet of the first check valve 71 is connected to the inlet of the second water pump 12 and the inlet of the second check valve 72, respectively. The outlet of the second check valve 72 is connected to the condenser 16.

[0092] The first check valve 71 is used to limit the unidirectional flow of coolant from one of the outlets of the integrated water valve 14, preventing backflow of coolant. Under the limitation of the first check valve 71, the coolant flowing out of the outlet of the integrated water valve 14 connected to the first check valve 71 can flow to the inlet of the second water pump 12 and the inlet of the second check valve 72.

[0093] like Figure 1 As shown, after the liquid outlet of the second one-way valve 72 is connected to the second outlet 63 of the three-way water valve 6, they are connected to the condenser 16 together. The water coolant flowing out of the second one-way valve 72 can merge with the water coolant flowing out of the second outlet 63 and flow into the liquid inlet of the condenser 16 together.

[0094] Optionally, the integrated thermal management system also includes an expansion tank 103, which is connected between the integrated water valve 14 and the first check valve 71. The expansion tank 103 is used to replenish the coolant in the water circuit and to remove gas.

[0095] In a further embodiment, such as Figure 2 As shown, the integrated water valve 14 includes a first input terminal 141, a second input terminal 142, a third input terminal 143, a first output terminal 144, a second output terminal 145, and a third output terminal 146. The first input terminal 141 is connected to the first output terminal 144, the second input terminal 142 is connected to the second output terminal 145, and the third input terminal 143 is connected to the third output terminal 146.

[0096] The first input terminal 141 is connected to the refrigerator 17, and the first output terminal 144 is connected to the liquid inlet of the first check valve 71.

[0097] The second input terminal 142 is connected to the refrigerator 17, and the second output terminal 145 is connected to the functional component 2.

[0098] The third input terminal 143 is connected to the battery 3, and the third output terminal 146 is connected to the refrigerator 17.

[0099] Specifically, the integrated water valve 14 integrates three mutually separated flow channels, which helps to reduce the number of connecting pipes in the integrated heat pump 1, making the structure of the integrated thermal management system more compact and efficient.

[0100] The first input terminal 141 and the first output terminal 144 are connected to form a first flow channel; the second input terminal 142 and the second output terminal 145 are connected to form a second flow channel; and the third input terminal 143 and the third output terminal 146 are connected to form a third flow channel.

[0101] In a further embodiment, the inlet of the first water pump 11 is connected to the functional component 2, and the outlet of the first water pump 11 is connected to the air conditioning assembly 4. The integrated thermal management system also includes an electric heater 8, which is connected to the outlet of the second water pump 12 and the battery 3, respectively.

[0102] Both the first water pump 11 and the second water pump 12 are used to drive the coolant in the water circuit. For example... Figure 1 As shown, the left end of the first water pump 11 and the left end of the second water pump 12 are the liquid inlet ends, and the right end of the first water pump 11 and the right end of the second water pump 12 are the liquid outlet ends. The water coolant circulates in the cooling system under the drive of the first water pump 11 and the second water pump 12.

[0103] For example, such as Figure 1As shown, the automatic driving controller 21 and the three-in-one assembly 22 are connected in parallel and then connected in series with the electric drive assembly 23. The electric drive assembly 23 is connected to the liquid inlet of the first water pump 11.

[0104] The electric heater 8 is used to heat the battery 3 to prevent the battery 3 from losing activity and capacity under low temperature conditions. For example, the electric heater 8 is a PTC (Positive Temperature Coefficient) heater, which has the advantages of low thermal resistance and high heat exchange efficiency.

[0105] In a further embodiment, the integrated thermal management system also includes a radiator 91 and a fan 92, the radiator 91 being connected to the second output terminal 145 of the functional component 2 and the integrated water valve 14, respectively, and the fan 92 being used to dissipate heat for the functional component 2.

[0106] For example, such as Figure 1 As shown, the radiator 91 is connected upstream of the autopilot controller 21 and the three-in-one assembly 22. The radiator 91 can cool the water coolant and improve the cooling effect of the cooling system on the heat dissipation components.

[0107] Fan 92 can accelerate heat exchange and improve heat exchange efficiency. For example, a temperature detection element is provided upstream of functional component 2. The temperature detection element is used to detect the temperature of the water coolant. When the temperature of the water coolant exceeds the temperature threshold, fan 92 runs; when the temperature of the water coolant is below the temperature threshold, fan 92 stops running.

[0108] In a further embodiment, the integrated thermal management system also includes a second electronic expansion valve 101 and a three-way air conditioning connector 102. The second electronic expansion valve 101 is connected between the refrigeration unit 17 and the air conditioning assembly 4. The first end of the three-way air conditioning connector 102 is connected to a four-way reversing valve 13, the second end of the three-way air conditioning connector 102 is connected to the air conditioning assembly 4, and the third end of the three-way air conditioning connector 102 is connected to the refrigeration unit 17 and the condenser 16, respectively.

[0109] like Figure 1 As shown, one end of the second electronic expansion valve 101 is connected to the refrigeration unit 17, and the other end is connected to the air conditioning assembly 4. The second electronic expansion valve 101 is used to control the flow of air conditioning refrigerant between the refrigeration unit 17 and the air conditioning assembly 4, so as to realize the opening or closing of the cooling and heating modes of the air conditioning assembly 4.

[0110] like Figure 1As shown, the left end of the three-way air conditioning connector 102 is the first end, the upper end of the three-way air conditioning connector 102 is the second end, and the right end of the three-way air conditioning connector 102 is the third end. The third end of the three-way air conditioning connector 102 is connected to two parallel branches. The first branch is connected to the refrigeration unit 17, and the second branch is connected to the air conditioning pipe where the first electronic expansion valve 15 is located. That is, the second branch is connected between the refrigeration unit 17 and the condenser 16.

[0111] The three-way air conditioning connector 102 can connect the four-way reversing valve 13, air conditioner, refrigeration unit 17 and condenser 16 to ensure the normal circulation of air conditioning refrigerant.

[0112] In one specific embodiment, the four-way directional valve 13 has a first state and a second state.

[0113] In the first state, the output end of the compressor 5 is connected to the condenser 16 through the four-way reversing valve 13, and the input end of the compressor 5 is connected to the first end of the three-way air conditioning connector 102 through the four-way reversing valve 13.

[0114] In the second state, the output end of the compressor 5 is connected to the first end of the three-way air conditioning connector 102 through the four-way reversing valve 13, and the input end of the compressor 5 is connected to the condenser 16 through the four-way reversing valve 13.

[0115] Specifically, when the air conditioning system is in cooling mode, the four-way reversing valve 13 is in the first state, the condenser 16 releases heat, and the refrigeration unit 17 absorbs heat; when the air conditioning system is in heating mode, the four-way reversing valve 13 is in the second state, the condenser 16 absorbs heat, and the refrigeration unit 17 releases heat.

[0116] In a further embodiment, the integrated thermal management system has a first cooling circuit, a second cooling circuit, and a third cooling circuit.

[0117] With the first cooling circuit open, the first water pump 11 is turned on, the first outlet 62 of the three-way water valve 6 is closed, and the second outlet 63 of the three-way water valve 6 is opened.

[0118] Specifically, such as Figure 3 As shown, when the first cooling circuit is open, the water coolant flows from the outlet of the first water pump 11 through the air conditioning assembly 4, the second outlet 63 of the three-way water valve 6, the condenser 16, the second input end 142 and the second output end 145 of the integrated water valve 14, the radiator 91, the functional component 2, and the inlet end of the first water pump 11.

[0119] With the second cooling circuit in operation, both the first water pump 11 and the second water pump 12 are turned on, the first outlet 62 of the three-way water valve 6 is opened, and the second outlet 63 of the three-way water valve 6 is closed.

[0120] Specifically, such as Figure 4 As shown, with the second cooling circuit open, the coolant flows sequentially from the outlet of the first water pump 11 through the air conditioning assembly 4, the first outlet 62 of the three-way water valve 6, the second water pump 12, the electric heater 8, the battery 3, the third input 143 and the third output 146 of the integrated water valve 14, the refrigerator 17, the first input 141 and the first output 144 of the integrated water valve 14, the first check valve 71, the second check valve 72, the condenser 16, the second input 142 and the second output 145 of the integrated water valve 14, the radiator 91, the functional component 2, and the inlet of the first water pump 11. The coolant flowing from the first outlet 62 of the three-way water valve 6 also flows to the inlet of the second check valve 72.

[0121] With the third cooling circuit in operation, the second water pump 12 is turned on, and the first outlet 62 of the three-way water valve 6 is closed.

[0122] Specifically, such as Figure 5 As shown, when the third cooling circuit is open, the water coolant flows from the outlet of the second water pump 12 through the electric heater 8, the battery 3, the third input terminal 143 and the third output terminal 146 of the integrated water valve 14, the refrigerator 17, the first input terminal 141 and the first output terminal 144 of the integrated water valve 14, the first check valve 71, and the inlet of the second water pump 12.

[0123] The first and third cooling circuits can be switched on simultaneously.

[0124] In one specific embodiment, the integrated thermal management system has a first air conditioning circuit, a second air conditioning circuit, a third air conditioning circuit, and a fourth air conditioning circuit.

[0125] With the first air conditioning circuit connected, the first electronic expansion valve 15 opens, the second electronic expansion valve 101 closes, the four-way reversing valve 13 is in the first state, and the air conditioning assembly 4 stops operating.

[0126] Specifically, such as Figure 6 As shown, when the first air conditioning circuit is open, the air conditioning refrigerant flows from the output end of the compressor 5 through the condenser 16, the first electronic expansion valve 15, the refrigeration unit 17, the third and first ends of the three-way air conditioning connector 102, the four-way reversing valve 13, and the input end of the compressor 5.

[0127] With the second air conditioning circuit in operation, both the first electronic expansion valve 15 and the second electronic expansion valve 101 are open, the four-way reversing valve 13 is in the first state, and the air conditioning assembly 4 is running.

[0128] Specifically, such as Figure 7As shown, when the second air conditioning circuit is open, the air conditioning refrigerant flows from the output end of the compressor 5 through the condenser 16, the first electronic expansion valve 15, and the refrigeration unit 17 in sequence. After the air conditioning refrigerant flows out of the refrigeration unit 17, it is divided into two paths. The first path flows through the third and first ends of the three-way air conditioning connector 102, the four-way reversing valve 13, and the input end of the compressor 5. The second path flows through the second electronic expansion valve 101, the evaporator of the air conditioning assembly 4, the second and first ends of the three-way air conditioning connector 102, the four-way reversing valve 13, and the input end of the compressor 5.

[0129] With the third air conditioning circuit connected, the first electronic expansion valve 15 opens, the second electronic expansion valve 101 closes, the four-way reversing valve 13 is in the second state, and the air conditioning assembly 4 stops operating.

[0130] Specifically, such as Figure 8 As shown, when the third air conditioning circuit is open, the air conditioning refrigerant flows from the output end of the compressor 5 through the four-way reversing valve 13, the first and third ends of the three-way air conditioning connector 102, the refrigeration unit 17, the first electronic expansion valve 15, the condenser 16, the four-way reversing valve 13, and the input end of the compressor 5.

[0131] With the fourth air conditioning circuit in operation, both the first electronic expansion valve 15 and the second electronic expansion valve 101 are open, the four-way reversing valve 13 is in the second state, and the air conditioning assembly 4 is running.

[0132] Specifically, such as Figure 9 As shown, when the fourth air conditioning circuit is open, the air conditioning refrigerant flows from the output end of the compressor 5 through the four-way reversing valve 13 and the first end of the three-way air conditioning connector 102, and then splits into two paths. The first path flows through the second end of the three-way air conditioning connector 102, the heating core of the air conditioning assembly 4, and the second electronic expansion valve 101. The second path flows out from the third end of the three-way air conditioning connector 102 and merges with the first path of air conditioning refrigerant flowing out from the second electronic expansion valve 101. They then flow together into the refrigeration unit 17, the first electronic expansion valve 15, the condenser 16, the four-way reversing valve 13, and the input end of the compressor 5.

[0133] Specifically, when the first and second air conditioning circuits are connected, the air conditioning system is in cooling mode; when the third and fourth air conditioning circuits are connected, the air conditioning system is in heating mode.

[0134] In a further embodiment, the integrated thermal management system has at least one of the first to ninth operating modes.

[0135] like Figure 3 As shown, in the first operating mode, the first cooling circuit is activated.

[0136] Specifically, in the first operating mode, cooling of functional component 2 is primarily achieved through fan 92 and radiator 91. Optionally, in the first operating mode, ventilation of the passenger compartment can be achieved through the blower of air conditioning assembly 4. The first operating mode is suitable for operating scenarios with lower cooling requirements.

[0137] like Figure 4 As shown, in the second operating mode, the second cooling circuit is turned on and the electric heater 8 is turned off.

[0138] Specifically, in the second operating mode, the first water pump 11 and the second water pump 12 are connected in series, and the fan 92 and the radiator 91 cool the functional component 2 and the battery 3. The coolant in the cooling system exchanges heat with the battery 3, thereby reducing the temperature of the battery 3. The second operating mode is suitable for operating scenarios where the cooling requirements are higher than those of the first operating mode.

[0139] like Figure 10 As shown, in the third working mode, the first cooling circuit, the third cooling circuit and the first air conditioning circuit are connected, and the electric heater 8 is turned off.

[0140] Specifically, in the third operating mode, the fan 92 and the radiator 91 cool the functional component 2 and the condenser 16, and the air conditioning system cools the battery 3.

[0141] In the third operating mode, the air conditioning system operates in cooling mode. The heat released by the condenser 16 is transferred to the water coolant, which flows to the radiator 91 and dissipates heat through the fan 92 and the radiator 91. The refrigerator 17 acts as an evaporator, absorbing heat and lowering the temperature of the antifreeze in the battery 3 through the water coolant in the third cooling circuit, thus cooling the battery 3. The third operating mode is suitable for operating scenarios with higher temperatures and cooling requirements than the second operating mode.

[0142] like Figure 11 As shown, in the fourth operating mode, the first cooling circuit, the third cooling circuit, and the second air conditioning circuit are connected, and the electric heater 8 is turned off.

[0143] Specifically, in the fourth operating mode, the air conditioning system and air conditioning assembly 4 are in cooling mode. Fan 92 and radiator 91 cool the functional components 2 and condenser 16, while the air conditioning system cools the battery 3 and the passenger compartment. The integrated thermal management system cools the passenger compartment through the air conditioning assembly 4. The third operating mode is suitable for operating scenarios with higher temperatures and cooling requirements than the third operating mode.

[0144] like Figure 12 As shown, in the fifth operating mode, the second cooling circuit is activated and fan 92 is deactivated.

[0145] Specifically, in the fifth operating mode, the residual heat generated when functional component 2 is in operation heats battery 3 and the crew compartment.

[0146] In this mode, fan 92 is turned off, and the coolant flows out from functional component 2 and then through the second cooling circuit to the air conditioning assembly 4 and battery 3, thereby heating battery 3 and the passenger compartment. The fifth operating mode is suitable for operating scenarios with low temperatures and certain heating requirements.

[0147] like Figure 13 As shown, in the sixth working mode, the second cooling circuit and the third air conditioning circuit are connected, and the fan 92 turns on or off according to the temperature of the water coolant.

[0148] Specifically, in the sixth operating mode, the air conditioning system is in heating mode. The air conditioning system uses the compressor 5 to transfer the waste heat collected by the condenser 16 from the functional component 2 to the refrigerator 17 to heat the battery 3, and the fan 92 is turned on as needed for heat dissipation. The sixth operating mode is suitable for working scenarios where the temperature is low and the heating demand is higher than that of the fifth operating mode.

[0149] When the air conditioning system is in heating mode, the condenser 16 absorbs heat. The coolant flows out of the functional component 2 and is absorbed by the condenser 16. The condenser 16 transfers the waste heat to the refrigerator 17 through the air conditioning refrigerant. The refrigerator 17 exchanges heat with the battery 3 through the coolant, thereby increasing the temperature of the battery 3.

[0150] Optionally, the integrated thermal management system also includes a temperature sensor and a fan 92 controller connected in communication. The temperature sensor is located upstream of the functional component 2. When the temperature of the coolant in the water circuit exceeds the temperature threshold, the fan 92 controller controls the fan 92 to run; when the temperature of the coolant in the water circuit is lower than the temperature threshold, the fan 92 controller controls the fan 92 to stop running, thereby achieving on-demand cooling of the functional component 2 and preventing the functional component 2 from overheating.

[0151] like Figure 14 As shown, in the seventh operating mode, the second cooling circuit and the fourth air conditioning circuit are connected, and the fan 92 turns on or off according to the temperature of the water coolant.

[0152] Specifically, in the seventh operating mode, the air conditioning system and air conditioning assembly 4 are in heating mode. The air conditioning system uses compressor 5 to transfer the waste heat collected by condenser 16 from functional component 2 to refrigerator 17 to heat battery 3; the air conditioning system also uses compressor 5 to transfer the waste heat collected by condenser 16 from functional component 2 to the warm air core of air conditioning assembly 4 to heat the passenger compartment; fan 92 is turned on as needed for heat dissipation. The seventh operating mode is suitable for operating scenarios where the temperature is low and the heating demand is higher than that of the seventh operating mode.

[0153] The operating logic of fan 92 in the seventh operating mode is the same as that in the sixth operating mode, and will not be repeated here.

[0154] like Figure 15 As shown, in the eighth operating mode, the second cooling circuit is turned on and the electric heater 8 is activated.

[0155] Specifically, in the eighth operating mode, the waste heat of functional component 2 is transferred to air conditioning assembly 4, and the waste heat of functional component 2 preheats electric heater 8, which in turn heats battery 3. The eighth operating mode is suitable for working scenarios that require battery 3 heating.

[0156] For example, in the eighth operating mode, the first water pump 11 and the second water pump 12 are connected in series, the compressor 5 does not perform work, the air conditioning refrigerant in the air conditioning system does not circulate, and the waste heat generated when the functional component 2 is working is transferred to the air conditioning assembly 4 through the flow of coolant in the second cooling circuit. The air conditioning assembly 4 does not provide heating, and the blower of the air conditioning assembly 4 promotes heat exchange between the coolant and the air, thereby blowing hot air into the passenger compartment. The waste heat generated when the functional component 2 is working is transferred to the electric heater 8 through the flow of coolant in the second cooling circuit, which helps to improve the heat exchange effect between the electric heater 8 and the battery 3.

[0157] like Figure 16 As shown, in the ninth operating mode, the first cooling circuit and the third cooling circuit are connected, and the electric heater 8 is turned on.

[0158] Specifically, in the ninth operating mode, the waste heat of functional component 2 is transferred to air conditioning assembly 4 through the first cooling circuit, and electric heater 8 heats battery 3. The ninth operating mode is suitable for working scenarios that require battery 3 heating.

[0159] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0160] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0161] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An integrated thermal management system, characterized by, Includes integrated heat pump, functional components, battery, air conditioning assembly, compressor, radiator, fan, three-way water valve, first check valve and second check valve; The integrated heat pump includes a first water pump, a second water pump, a four-way reversing valve, an integrated water valve, a first electronic expansion valve, a condenser, and a chiller. The integrated water valve is connected to the chiller and the condenser respectively. The four-way reversing valve is connected to the condenser. The first electronic expansion valve is connected between the condenser and the chiller. The functional components, the battery, the air conditioning assembly, and the compressor are all connected to the integrated heat pump; The radiator is connected to the functional component and the integrated water valve respectively, and the fan is used to dissipate heat from the functional component; The three-way water valve includes an inlet connected to the air conditioning assembly, a first outlet connected to the second water pump and the integrated water valve, and a second outlet connected to the condenser; The inlet end of the first check valve is connected to the integrated water valve, and the outlet end is connected to the inlet end of the second water pump and the inlet end of the second check valve, respectively. The liquid outlet of the second one-way valve is connected to the condenser; The integrated water valve includes a first input terminal and a first output terminal connected together, a second input terminal and a second output terminal connected together, and a third input terminal and a third output terminal connected together. The first input terminal is connected to the refrigerator, and the first output terminal is connected to the liquid inlet of the first one-way valve. The second input terminal is connected to the refrigerator, and the second output terminal is connected to the functional component; The third input terminal is connected to the battery, and the third output terminal is connected to the refrigerator.

2. The integrated thermal management system according to claim 1, characterized in that, The condenser is a water-cooled condenser.

3. The integrated thermal management system according to claim 1, characterized in that, The inlet end of the first water pump is connected to the functional component, and the outlet end of the first water pump is connected to the air conditioning assembly. The integrated thermal management system also includes an electric heater, which is connected to the outlet of the second water pump and the battery, respectively.

4. The integrated thermal management system according to claim 3, characterized in that, The integrated thermal management system also includes a second electronic expansion valve and a three-way air conditioning connector; The second electronic expansion valve is connected between the refrigeration unit and the air conditioning assembly; The first end of the three-way air conditioning connector is connected to the four-way reversing valve, the second end of the three-way air conditioning connector is connected to the air conditioning assembly, and the third end of the three-way air conditioning connector is connected to the refrigeration unit and the condenser, respectively.

5. The integrated thermal management system according to claim 4, characterized in that, The four-way directional valve has a first state and a second state; In the first state, the output end of the compressor is connected to the condenser through the four-way reversing valve, and the input end of the compressor is connected to the first end of the three-way air conditioner connector through the four-way reversing valve. In the second state, the output end of the compressor is connected to the first end of the three-way air conditioner connector through the four-way reversing valve, and the input end of the compressor is connected to the condenser through the four-way reversing valve.

6. The integrated thermal management system according to claim 5, characterized in that, The integrated thermal management system has a first cooling circuit, a second cooling circuit, and a third cooling circuit; When the first cooling circuit is open, the first water pump is turned on, the first outlet of the three-way water valve is closed, and the second outlet of the three-way water valve is opened. When the second cooling circuit is open, both the first and second water pumps are turned on, the first outlet of the three-way water valve is opened, and the second outlet of the three-way water valve is closed. When the third cooling circuit is open, the second water pump is turned on, and the first outlet of the three-way water valve is closed.

7. The integrated thermal management system according to claim 6, characterized in that, The integrated thermal management system has a first air conditioning circuit, a second air conditioning circuit, a third air conditioning circuit, and a fourth air conditioning circuit; When the first air conditioning circuit is connected, the first electronic expansion valve opens, the second electronic expansion valve closes, the four-way reversing valve is in the first state, and the air conditioning assembly stops operating. When the second air conditioning circuit is open, both the first electronic expansion valve and the second electronic expansion valve are open, the four-way reversing valve is in the first state, and the air conditioning assembly is running; When the third air conditioning circuit is connected, the first electronic expansion valve opens, the second electronic expansion valve closes, the four-way reversing valve is in the second state, and the air conditioning assembly stops operating. When the fourth air conditioning circuit is activated, both the first electronic expansion valve and the second electronic expansion valve are open, the four-way reversing valve is in the second state, and the air conditioning assembly is in operation.

8. The integrated thermal management system according to claim 7, characterized in that, The integrated thermal management system has at least one of the following operating modes: In the first operating mode, the first cooling circuit is activated; In the second operating mode, the second cooling circuit is turned on and the electric heater is turned off. In the third operating mode, the first cooling circuit, the third cooling circuit, and the first air conditioning circuit are connected, and the electric heater is turned off. In the fourth operating mode, the first cooling circuit, the third cooling circuit, and the second air conditioning circuit are connected, and the electric heater is turned off. In the fifth operating mode, the second cooling circuit is activated and the fan is deactivated. In the sixth operating mode, the second cooling circuit and the third air conditioning circuit are connected, and the fan is turned on or off according to the temperature of the coolant in the water circuit. In the seventh operating mode, the second cooling circuit and the fourth air conditioning circuit are connected, and the fan is turned on or off according to the temperature of the coolant in the water circuit. In the eighth operating mode, the second cooling circuit is activated and the electric heater is turned on. In the ninth operating mode, the first cooling circuit and the third cooling circuit are connected, and the electric heater is turned on.

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