Thermal management system assembly for multi-channel electronic water valve

Abstract

This application provides a multi-channel electronic water valve thermal management system assembly, relating to the field of thermal management system technology. The multi-channel electronic water valve thermal management system includes: a coolant system, a battery system, an air conditioning system, and an electric drive system. The multi-channel valve is equipped with a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, and a ninth connection port. Connecting pipes are respectively connected to the sixth and seventh connection ports. The battery system and the electric drive system are both connected to the coolant system, and the air conditioning system is coupled to the coolant system, satisfying the cooling, heating, and temperature equalization functions of each system. Under various ambient temperatures and different operating conditions, the system can operate in its most efficient mode, simplifying the system, reducing costs, and improving vehicle assembly efficiency.

Description

Technical Field

[0001] This application relates to the field of thermal management system technology, and more specifically, to a thermal management system assembly with a multi-channel electronic water valve. Background Technology

[0002] A typical electric vehicle thermal management system comprises three independent systems: an electric drive cooling system, a power battery temperature control system (including heating and cooling systems), and a passenger compartment air conditioning system (including cooling and heat pump modes). To achieve energy savings in the overall vehicle thermal management system, these systems are often interconnected via a water-cooling system, commonly referred to as an integrated thermal management system. Under different operating conditions, systems that generate and dissipate heat (or require heating) are linked to achieve a reasonable energy flow, reducing overall vehicle energy consumption while meeting the heat dissipation or heating needs of components. A water-cooling system is typically used to connect the systems, enabling heat flow between them, i.e., heat transfer through the flow of coolant. In engineering, water valves are used to switch the coolant flow mode. To reduce energy consumption for passenger compartment heating, a heat pump mode in the air conditioning system is typically used. This mode absorbs heat from the low-temperature environment or heat-generating components inside the vehicle (such as the drive motor) to heat the passenger compartment, achieving more efficient heating. When the heat pump mode is insufficient, the water-cooling system's heaters heat the coolant, which then flows through the heater core for auxiliary heating.

[0003] In related technologies, to achieve complex water-cooling circuit switching, it is usually necessary to design a complex water-cooling system and switch modes using multiple electronic water valves, with three-way valves and four-way valves being the most commonly used. Current systems typically include multiple three-way and four-way valves, resulting in system complexity, high cost, and low vehicle assembly efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a thermal management system assembly with a multi-channel electronic water valve, which replaces multiple three-way valves or four-way valves with a multi-way valve to achieve coupling of multiple systems, thereby simplifying the system, reducing costs, and improving the assembly efficiency of the whole vehicle.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] In a first aspect, this application provides a thermal management system assembly for a multi-channel electronic water valve, comprising: a coolant system including a multi-way valve, a battery cooler, a heating component, a radiator, and connecting pipes; the multi-way valve being configured with a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, and a ninth connection port; the connecting pipes being connected to the sixth connection port and the seventh connection port respectively; the battery cooler being configured with a first port, a second port, a third port, and a fourth port; the first port being connected to the second connection port; and the heating component being connected to the third connection port and the second port respectively for heat exchange with the passenger compartment. The radiator is equipped with a first port and a second port. The first port is connected to the ninth connection port, and the second port is connected to the eighth connection port for heat exchange between the coolant system and the outside environment. The battery system is configured to be connected to the fourth and fifth connection ports respectively for heat exchange with the coolant system. The electric drive system is configured to be connected to the first and eighth connection ports respectively. The air conditioning system includes an air conditioning unit and a front cabin heat exchanger. The air conditioning unit is connected to the third and fourth ports respectively for heat exchange with the passenger compartment and / or the coolant system. The front cabin heat exchanger is connected to the air conditioning unit for heat exchange between the air conditioning unit and the outside environment.

[0007] In the above implementation process, the first port of the battery cooler is connected to the second connection port, the battery system is connected to the fourth and fifth connection ports respectively, the heating component is connected to the third connection port and the second port respectively, the electric drive system is connected to the first and eighth connection ports respectively, the air conditioning component is connected to the third and fourth ports respectively, the front compartment heat exchanger is connected to the air conditioning component, the first pipe port of the radiator is connected to the ninth connection port, and its second pipe port is connected to the pipeline between the electric drive system and the eighth connection port. The entire thermal management system controls the flow direction of the coolant by switching the multi-way valve, realizing the coupling of the electric drive system, the air conditioning system and the battery system, satisfying the cooling, heating and temperature equalization functions of each system. Under various ambient temperatures and different operating conditions, the system can be in the most efficient operating mode, which can simplify the system, reduce costs, and improve the assembly efficiency of the whole vehicle.

[0008] In some embodiments, the heating assembly includes a second electronic water pump, a heater, a warm air core, and a proportional valve. The second electronic water pump is connected to the heater and the third connection port. The proportional valve is configured with a first channel port, a second channel port, and a third channel port. The second channel port is connected to the second port. The third channel port is connected between the second electronic water pump and the third connection port through a first pipeline. The warm air core is connected to the heater and the first channel port.

[0009] In the above process, the second electronic water pump is connected to the heater and the third connection port respectively, so that the coolant is heated by the heater through the action of the second electronic water pump and flows to the heater core to exchange heat with the air in the passenger compartment. This not only heats the passenger compartment, but also achieves heat exchange with the battery system under the action of the multi-way valve, meeting the functional requirements of each system, ensuring that the system is in the most efficient operating mode, and improving the vehicle's energy efficiency and range.

[0010] In some embodiments, the heating assembly further includes a second conduit, one end of which is connected between the second channel opening and the second port, and the other end of which is connected between the second electric water pump and the third connection port. By connecting the second conduit to both the second port and the third connection port, the multi-way valve can switch between the battery system and the battery cooler or between the battery system and the heating assembly, thereby achieving heat exchange in the battery system, meeting the needs under different operating conditions, ensuring the system operates in its most efficient mode, and improving the vehicle's energy efficiency and range.

[0011] In some embodiments, the battery system includes a power battery, a third electronic water pump, and a third temperature sensor. The power battery is connected to both the fourth connection port and the third temperature sensor, and the third electronic water pump is connected to both the fifth connection port and the third temperature sensor. By connecting the third electronic water pump to both the fifth connection port and the third temperature sensor, after the multi-way valve is switched, coolant can be transferred to the power battery for heat exchange via the third electronic water pump, and the temperature can be detected by the third temperature sensor. This ensures the operating temperature requirements of the power battery, achieves the most efficient operating mode, and thus improves the range and energy efficiency of the power battery.

[0012] In some embodiments, the air conditioning assembly includes a gas-liquid separator, a compressor, an indoor condenser, and an evaporator. The gas-liquid separator is connected to the compressor and the third port, respectively. The compressor is connected to the indoor condenser and the front compartment heat exchanger, respectively. The indoor condenser is connected to the front compartment heat exchanger, respectively. The evaporator is connected to the front compartment heat exchanger and the gas-liquid separator, respectively. By connecting the indoor condenser to the compressor, the evaporator to the gas-liquid separator, and the gas-liquid separator to the compressor, the air conditioning assembly can provide heating or cooling according to the needs of the passenger compartment. It can also exchange heat with the coolant system, ensuring the system operates at its most efficient level, thus improving vehicle energy efficiency and range.

[0013] In some embodiments, a first solenoid valve is provided on the pipeline between the indoor condenser and the compressor, and a second solenoid valve is provided on the pipeline between the front compartment heat exchanger and the compressor, so that the indoor condenser and the front compartment heat exchanger are connected to the compressor in parallel.

[0014] In some embodiments, a second refrigerant check valve and a second electronic expansion valve are provided on the pipeline between the evaporator and the front compartment heat exchanger, and a first electronic expansion valve is provided on the pipeline between the indoor condenser and the front compartment heat exchanger. The first and second electronic expansion valves enable active control of the pressure reduction and expansion of the passing refrigerant.

[0015] In some embodiments, the air conditioning assembly further includes a first branch pipe, which is connected to the pipe between the evaporator and the front compartment heat exchanger. One end of the first branch pipe is connected between the indoor condenser and the front compartment heat exchanger, and the other end is connected to the fourth port. A third solenoid valve, a first refrigerant check valve, and a third electronic expansion valve are respectively installed on the first branch pipe. By providing the first branch pipe, and by installing the third solenoid valve, the first refrigerant check valve, and the third electronic expansion valve on the first branch pipe, the system can adapt to different operating conditions, ensuring heating of the passenger compartment.

[0016] In some embodiments, the air conditioning assembly further includes a second branch pipe, one end of which is connected to the pipe between the front compartment heat exchanger and the second refrigerant check valve, and the other end of which is connected to the gas-liquid separator, and a fourth solenoid valve is disposed on the second branch pipe.

[0017] In some embodiments, the coolant system further includes an expansion assembly connected to the radiator, the heating assembly, and the electric drive system. By providing the expansion assembly, it can be used to store and fill coolant, accommodate overflowing air within the system, and regulate the system's ultimate pressure. Furthermore, integrating the expansion assembly into the system saves on piping and supports, resulting in a more compact layout and weight reduction.

[0018] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing embodiments of this application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For users of ordinary skills in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the first mode of a thermal management system assembly for a multi-channel electronic water valve disclosed in the embodiments of this application.

[0021] Figure 2 This is a schematic diagram of the second mode of a thermal management system assembly for a multi-channel electronic water valve disclosed in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the third mode of a thermal management system assembly for a multi-channel electronic water valve disclosed in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the fourth mode of a thermal management system assembly for a multi-channel electronic water valve disclosed in an embodiment of this application.

[0024] Figure Labels

[0025] 100. Coolant system; 101. Multi-way valve; 1011. First connection port; 1012. Second connection port; 1013. Third connection port; 1014. Fourth connection port; 1015. Fifth connection port; 1016. Sixth connection port; 1017. Seventh connection port; 1018. Eighth connection port; 1019. Ninth connection port; 102. Connecting pipeline; 200. Battery system; 201. Battery cooler; 202. Power battery; 203. Third electronic water pump; 204. Third temperature sensor; 205. Second electronic water pump; 206. Heater; 207. Heater core; 208. Proportional valve; 209. Second temperature sensor; 210. Second pipeline; 300. Air conditioning system; 301, gas-liquid separator; 302, compressor; 303, indoor condenser; 304, evaporator; 305, first solenoid valve; 306, second solenoid valve; 307, second refrigerant check valve; 308, second electronic expansion valve; 309, first electronic expansion valve; 310, third solenoid valve; 311, first refrigerant check valve; 312, third electronic expansion valve; 313, fourth solenoid valve; 314, front compartment heat exchanger; 315, radiator; 316, third refrigerant check valve; 400, expansion tank; 401, check valve body; 402, on / off valve; 500, electric drive system; 501, electric drive assembly; 502, first electronic water pump; 503, first temperature sensor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by users of ordinary skill in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this solution is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example

[0033] In this application, the multi-channel electronic water valve thermal management system assembly can be applied to vehicles, such as pure electric vehicles and hybrid electric vehicles. The battery system 200, air conditioning system 300 and electric drive system 500 are integrated into one unit through the coolant system 100, so that reasonable energy flow between the various systems can be achieved when the vehicle is working, so as to improve energy utilization and reduce the energy consumption of the whole vehicle.

[0034] like Figures 1-4 As shown, in a first aspect, this application provides a multi-channel electronic water valve thermal management system assembly, including: a coolant system 100, a battery system 200, an air conditioning system 300, and an electric drive system 500. The battery system 200 and the electric drive system 500 are both connected to the coolant system 100. The air conditioning system 300 is coupled to the coolant system 100 through a battery cooler 201 to achieve heat exchange between the refrigerant and the coolant. The coolant system 100 is equipped with a multi-way valve. By switching the multi-way valve, not only is the integration between the various systems achieved, but the rational flow of energy is also facilitated.

[0035] Specifically, the coolant system 100 includes a multi-way valve 101, a battery cooler 201, a heating assembly, a radiator 315, and connecting pipes 102. The multi-way valve 101 is equipped with a first connection port 1011, a second connection port 1012, a third connection port 1013, a fourth connection port 1014, a fifth connection port 1015, a sixth connection port 1016, a seventh connection port 1017, an eighth connection port 1018, and a ninth connection port 1019. The connecting pipes 102 are respectively connected to the sixth connection port 1016 and the seventh connection port 1017. The battery cooler 201 is equipped with a first port, a second port, a third port, and a fourth port. The first port is connected to the second connection port 1012. The heating assembly is respectively connected to the third connection port 1013 and the second port for connection with the battery system and / or the passenger compartment. Heat exchange: The radiator 315 is equipped with a first port and a second port. The first port is connected to the ninth connection port 1019, and the second port is connected to the pipeline between the electric drive system 500 and the eighth connection port 1018 for heat exchange between the coolant system 100500 and the outside environment; Battery system 200 is configured to be connected to the fourth connection port 1014 and the fifth connection port 1015 respectively; Electric drive system 500 is configured to be connected to the first connection port 1011 and the eighth connection port 1018 respectively; Air conditioning system 300 includes an air conditioning component and a front cabin heat exchanger 314. The air conditioning component is connected to the third port and the fourth port respectively for heat exchange with the crew cabin and / or the battery system. The front cabin heat exchanger 314 is connected to the air conditioning component for heat exchange between the air conditioning component and the outside environment.

[0036] For example, the multi-way valve 101 includes, but is not limited to, a nine-way valve. Its sixth connection port 1016 and seventh connection port 1017 are configured as closed via the connecting pipe 102, allowing communication only through the internal channel of the valve core. The first connection port 1011, the second connection port 1012, the third connection port 1013, the fourth connection port 1014, the fifth connection port 1015, the eighth connection port 1018, and the ninth connection port 1019 are connected to external components. This application uses a butterfly valve as an example to illustrate the working principle of the multi-way valve 101 and its role in the system. However, the specific implementation of the multi-way valve 101 can be of other types. The valve core can rotate around its axis, changing the communication mode after rotation, thereby changing the communication mode of the entire system.

[0037] The electric drive system 500 includes an electric drive assembly 501, a first electric water pump 502, and a first temperature sensor 503. The first electric water pump 502 is connected to the electric drive assembly 501 and the first connection port 1011. The electric drive assembly 501 is connected to the eighth connection port 1018. The first temperature sensor 503 is disposed between the electric drive assembly 501 and the first electric water pump 502. The first electric water pump 502 can drive the coolant to flow in the electric drive system. The first temperature sensor 503 is used to detect the temperature of the coolant. The controller of the thermal management system controls the system based on the data detected by the first temperature sensor 503, the second temperature sensor 209, and the third temperature sensor 204.

[0038] The battery cooler 201 enables heat exchange between the refrigerant and the coolant. After flowing through the battery cooler 201, the refrigerant absorbs heat from the coolant and its temperature rises, while the coolant temperature decreases. The cooled coolant can then flow into the power battery 202 to cool it. The front compartment heat exchanger 314 is used for heat exchange between the external ambient air and the refrigerant flowing inside the vehicle, so as to achieve heat dissipation and heat absorption of the air conditioning system 300. The radiator 315 includes, but is not limited to, a gas-liquid heat exchanger, which can transfer the heat of the coolant inside the radiator to the air flowing over its surface, thereby cooling the coolant.

[0039] In the above implementation process, the first port of the battery cooler 201 is connected to the second connection port 1012, the battery system is connected to the fourth connection port 1014 and the fifth connection port 1015 respectively, the heating component is connected to the third connection port 1013 and the second port respectively, the electric drive system 500 is connected to the first connection port 1011 and the eighth connection port 1018 respectively, the air conditioning component is connected to the third port and the fourth port respectively, the front compartment heat exchanger 314 is connected to the air conditioning component, the first pipe port of the radiator 315 is connected to the ninth connection port 1019, and its second pipe port is connected to the pipeline between the electric drive system 500 and the eighth connection port 1018. The entire thermal management system controls the flow direction of the coolant by switching the multi-way valve 101, realizing the coupling of the electric drive system 500, the air conditioning system 300 and the battery system 200, satisfying the cooling, heating and temperature equalization functions of each system. Under various ambient temperatures and different operating conditions, the system can be in the most efficient operating mode, which can simplify the system, reduce costs, and improve the assembly efficiency of the whole vehicle.

[0040] In some embodiments, the heating assembly includes a second electronic water pump 205, a heater 206, a warm air core 207, a second temperature sensor 209, and a proportional valve 208. The second electronic water pump 205 is connected to the heater 206 and the third connection port 1013. The proportional valve 208 is configured with a first channel port, a second channel port, and a third channel port. The second channel port is connected to the second port. The third channel port is connected between the second electronic water pump 205 and the third connection port 1013 through a first pipeline. The warm air core 207 is connected to the heater 206 and the first channel port. The second temperature sensor 209 is configured in the pipeline between the second channel port and the second port.

[0041] In the above process, the second electronic water pump 205 is connected to the heater 206 and the third connection port 1013 respectively, so that the coolant is heated by the heater 206 through the action of the second electronic water pump 205 and flows to the heater core 207 to exchange heat with the air in the passenger compartment. This not only heats the passenger compartment, but also achieves heat exchange with the battery system 200 under the action of the multi-way valve 101, meeting the functional requirements of each system, ensuring that the system is in the most efficient operating mode, and improving the overall vehicle energy efficiency and range.

[0042] In some embodiments, the heating assembly further includes a second pipe 210, one end of which is connected between the second channel opening and the second port, and the other end of which is connected between the second electronic water pump 205 and the third connection port 1013. By connecting the second pipe 210 to both the second port and the third connection port 1013, the multi-way valve 101 can switch between the battery system and the battery cooler 201 or between the battery system and the heating assembly, thereby achieving heat exchange in the battery system, meeting the needs under different operating conditions, ensuring the system operates in its most efficient mode, and improving the vehicle's energy efficiency and range.

[0043] In some embodiments, the battery system includes a power battery 202, a third electronic water pump 203, and a third temperature sensor 204. The power battery 202 is connected to the fourth connection port 1014 and the third temperature sensor 204, respectively. The third electronic water pump 203 is connected to the fifth connection port 1015 and the third temperature sensor 204, respectively. By connecting the third electronic pump to the fifth connection port 1015 and the third temperature sensor 204, after the multi-way valve 101 is switched, coolant can be transferred to the power battery 202 for heat exchange via the third electronic water pump 203, and detected by the third temperature sensor 204. This ensures the operating temperature requirements of the power battery 202, achieves the most efficient operating mode, and thus improves the range and energy efficiency of the power battery 202.

[0044] In some embodiments, the air conditioning assembly includes a gas-liquid separator 301, a compressor 302, an indoor condenser 303, and an evaporator 304. The gas-liquid separator 301 is connected to the compressor 302 and the third port, respectively. The compressor 302 is connected to the indoor condenser 303 and the front compartment heat exchanger 314, respectively. The indoor condenser 303 is connected to the front compartment heat exchanger 314, and the evaporator 304 is connected to the front compartment heat exchanger 314 and the gas-liquid separator 301, respectively. The compressor 302 compresses the refrigerant and propels it within the air conditioning system 300. The indoor condenser 303 condenses the refrigerant flowing through it. During condensation, heat from the refrigerant is transferred to the air in the passenger compartment, thus heating the passenger compartment. The evaporator 304 is where the refrigerant absorbs heat through evaporation, cooling the air in the passenger compartment and achieving cooling. The gas-liquid separator 301 ensures the refrigerant superheat at the compressor 302's suction port, preventing liquid slugging. By connecting the indoor condenser 303 to the compressor 302, the evaporator 304 to the gas-liquid separator 301, and the gas-liquid separator 301 to the compressor 302, the air conditioning components can provide heating or cooling according to the passenger compartment's needs. Simultaneously, they can exchange heat with the coolant system 100, ensuring the system operates at its most efficient level, improving overall vehicle energy efficiency and range.

[0045] In some embodiments, a first solenoid valve 305 is provided on the pipeline between the indoor condenser 303 and the compressor 302, and a second solenoid valve 306 is provided on the pipeline between the front compartment heat exchanger 314 and the compressor 302, so that the indoor condenser 303 and the front compartment heat exchanger 314 are connected to the compressor 302 in parallel.

[0046] In some embodiments, a second refrigerant check valve 307 and a second electronic expansion valve 308 are configured on the pipeline between the evaporator 304 and the front compartment heat exchanger 314, and a first electronic expansion valve 309 is configured on the pipeline between the indoor condenser 303 and the front compartment heat exchanger 314. The first electronic expansion valve 309 and the second electronic expansion valve 308 enable active control of the pressure reduction and expansion of the passing refrigerant.

[0047] In some embodiments, the air conditioning assembly further includes a first branch pipe, which is connected to the pipe between the evaporator 304 and the front compartment heat exchanger 314. One end of the first branch pipe is connected between the indoor condenser 303 and the front compartment heat exchanger 314, and the other end is connected to the fourth port. A third solenoid valve 310, a first refrigerant check valve 311, and a third electronic expansion valve 312 are respectively installed on the first branch pipe. By providing the first branch pipe, and installing the third solenoid valve 310, the first refrigerant check valve 311, and the third electronic expansion valve 312 on the first branch pipe, the system can adapt to different operating conditions, ensuring heating of the passenger compartment.

[0048] In some embodiments, the air conditioning assembly further includes a second branch pipe, one end of which is connected to the pipe between the front compartment heat exchanger 314 and the second refrigerant check valve 307, and the other end is connected to the gas-liquid separator 301, and a fourth solenoid valve 313 is disposed on the second branch pipe.

[0049] like Figures 1-4 As shown, the coolant system 100 also includes an expansion assembly, which includes an expansion tank 400, a one-way valve body 401, and a switching valve 402. The expansion tank 400 is connected to the radiator 315 and the heater core 207, respectively. The switching valve 402 is installed in the pipeline between the expansion tank 400 and the heater core 207. One end of the expansion tank 400 is connected to the third connection port 1013 and the second electronic water pump 205 through a pipeline. The one-way valve body 401 is installed on this pipeline. The expansion tank 400 is also connected to the first electronic water pump 502 through a pipeline. By setting up the expansion assembly, it can be used to store and add coolant, accommodate air overflowing from the system, and regulate the system's ultimate pressure. At the same time, integrating the expansion assembly into the system can save pipelines and supports, making the space layout more compact and achieving weight reduction.

[0050] The working principle of this application is as follows:

[0051] like Figure 1As shown, when the thermal management system assembly of the multi-channel electronic water valve is in the first mode, the first connection port 1011 is connected to the ninth connection port 1019, the second connection port 1012 is connected to the fifth connection port 1015, the third connection port 1013 is connected to the fourth connection port 1014, and the sixth connection port 1016 is connected to the seventh connection port 1017. This mode can be used in the following conditions, such as when the passenger compartment needs to be cooled in a high-temperature environment, the power battery 202 needs to be cooled by the battery cooler 201, and the electric drive system 500 needs to be cooled by the radiator 315. That is, the battery system is connected in series with the battery cooler 201 through the multi-way valve 101, and the electric drive system 500 is connected in series with the radiator 315. The second electronic water pump 205 and heater 206 in the heating assembly are not working, and the third channel of its proportional valve 208 is fully open. The air conditioning assembly is in the cooling mode.

[0052] Specifically, in the electric drive system 500, the first electronic water pump 502 drives the coolant to pass through the first water temperature sensor and then flows through the electric drive assembly 501 to absorb the heat released by it. The coolant, after its temperature rises, flows to the radiator 315. The heat in the coolant is carried away by the ambient air flowing over the surface of the radiator 315. The cooled coolant returns to the inlet of the first electronic water pump 502 through the ninth connection port 1019 and the first connection port 1011 of the multi-way valve 101, completing the circulation.

[0053] In the battery system 200, the third electronic water pump 203 drives the coolant through the third water temperature sensor, and then flows through the power battery 202 to absorb the heat released by it. The heated coolant passes through the fourth connection port 1014 and the third connection port 1013 of the multi-way valve 101. Since the second electronic water pump 205 is not working, the first and third channels of the proportional valve 208 are connected. Therefore, the coolant flows entirely through the second pipe 210 through the second temperature sensor 209 and then into the battery cooler 201. The heat in the coolant is carried away by the refrigerant flowing through the battery cooler 201. The cooled coolant returns to the inlet of the third electronic water pump 203 through the second connection port 1012 and the fifth connection port 1015 of the multi-way valve 101, completing the circulation. It should be noted that since the second electronic water pump 205 is not working, no coolant flows through the heater 206 and the warm air core 207.

[0054] In the air conditioning system 300, the low-temperature, low-pressure refrigerant is compressed by the compressor 302 into a high-temperature, high-pressure gas. After flowing through the second solenoid valve 306, it enters the front compartment heat exchanger 314, where it condenses and releases heat. The heat is carried away by the ambient air flowing over the surface of the front compartment heat exchanger 314. The cooled refrigerant becomes a medium-temperature, high-pressure liquid. After passing through the second refrigerant check valve 307, it is divided into two parts: the first part enters the second electronic expansion valve 308, undergoes expansion and decompression, and then enters the evaporator 304 to vaporize and absorb heat, cooling the passenger compartment air flowing over its surface. Then, it enters the gas-liquid separator 301 through the third refrigerant check valve 316. The second part enters the third electronic expansion valve 312, undergoes expansion and decompression, and then enters the battery cooler 201 to vaporize and absorb heat, cooling the coolant flowing inside. The second part then mixes with the first part. The refrigerant undergoes gas-liquid separation in the gas-liquid separator 301, and the gaseous refrigerant flows back to the inlet of the compressor 302, completing the cycle.

[0055] like Figure 2 As shown, when the thermal management system assembly of the multi-channel electronic water valve is in the second mode, the first connection port 1011 is connected to the eighth connection port 1018, the second connection port 1012 is connected to the fifth connection port 1015, the third connection port 1013 is connected to the fourth connection port 1014, and the sixth connection port 1016 is connected to the seventh connection port 1017. This mode can be used in the following conditions: in extremely low temperature environments, the passenger compartment needs heating, the power battery 202 needs heating, and the electric drive system needs heat storage or has no need for it. That is, the battery system is connected in series with the battery cooler 201 through the multi-port valve 101 and connected to the heating component through the proportional valve 208 (whose first channel port is proportionally connected to the second channel port and the third large port respectively). The electric drive system 500 circulates independently and is not connected in series with the radiator 315. The air conditioning system 300 does not work.

[0056] Specifically, in the electric drive system 500, when there is no demand, the first electronic water pump 502 does not work and the coolant does not flow; when the electric drive system 500 needs to store heat, the first electronic water pump 502 drives the coolant to pass through the first water temperature sensor and then through the electric drive assembly 501 to absorb the heat released by it. After the temperature rises, the coolant returns to the inlet of the first electronic water pump 502 through the eighth connection port 1018 and the first connection port 1011 of the multi-way valve 101, completing the circulation.

[0057] In the battery system 200, the third electronic water pump 203 drives the coolant to pass through the third water temperature sensor and then flows through the power battery 202 to heat it. After the temperature drops, the coolant passes through the fourth connection port 1014 and the third connection port 1013 of the multi-way valve 101 and is divided into two parts. One part flows directly through the second pipe 210 and the second temperature sensor 209 into the battery cooler 201. The other part passes through the second electronic water pump 205, is heated by the heater 206, flows through the heater core 207 and the proportional valve 208 (from the first channel port to the second channel port), and then passes through the second temperature sensor 209 into the battery cooler. After mixing with the first part, it passes through the second connection port 1012 and the fifth connection port 1015 of the multi-way valve 101 and returns to the inlet of the third electronic water pump 203 to complete the circulation.

[0058] It should be noted that the second electronic water pump 205 drives the coolant, which enters the heater 206 for heating, and then enters the heater core 207 to heat the air in the passenger compartment flowing over its surface. The coolant then enters the proportional valve 208 and flows from the first channel port to the second and third channel ports according to the proportion set by the whole vehicle. The coolant flowing through the third channel port returns to the inlet of the second electronic water pump 205 to complete the circulation.

[0059] In the air conditioning system 300, the refrigerant does not flow because the compressor 302 is not working.

[0060] like Figure 3 As shown, when the thermal management system assembly of the multi-channel electronic water valve is in the third mode, the first connection port 1011 is connected to the fourth connection port 1014, the second connection port 1012 is connected to the third connection port 1013, the fifth connection port 1015 is connected to the sixth connection port 1016, and the seventh connection port 1017 is connected to the eighth connection port 1018. This mode can be used in the following conditions: in low-temperature environments, the passenger compartment needs heating, the power battery 202 needs heating, the electric drive system 500 can provide waste heat to heat the power battery 202, and the environment can provide heat to the air conditioning system 300. That is, the battery system is connected in series with the electric drive system 500 through the multi-way valve 101, the heating component completes circulation through the first and third channels of the proportional valve 208, and the air conditioning component is in heat pump mode, absorbing heat from the environment to heat the passenger compartment.

[0061] Specifically, in the electric drive system 500 and battery system 200, the first electronic water pump 502 drives the coolant to pass through the first water temperature sensor, and then flows through the electric drive assembly 501 to absorb the heat released by it. The coolant, after its temperature rises, enters the inlet of the third electronic water pump 203 through the eighth connection port 1018, the seventh connection port 1017, the sixth connection port 1016 and the fifth connection port 1015 of the multi-way valve 101. Driven by the third electronic water pump 203, it enters the power battery 202 after passing through the third temperature sensor 204 to heat it. After releasing heat to the power battery 202, it returns to the inlet of the first electronic water pump 502 through the fourth connection port 1014 and the first connection port 1011 of the multi-way valve 101, completing the cycle.

[0062] In the heating assembly, the second electronic water pump 205 drives the coolant, which enters the heater 206 for heating, then enters the warm air core 207 to heat the air in the passenger compartment flowing over its surface, and then enters the proportional valve 208, passing through the first channel port and the third channel port back to the inlet of the second electronic water pump 205 to complete the circulation.

[0063] In the air conditioning system 300, the low-temperature, low-pressure refrigerant is compressed by the compressor 302 into a high-temperature, high-pressure gas. After flowing through the first solenoid valve 305, it enters the indoor condenser 303, where it condenses and releases heat, heating the passenger cabin air flowing over its surface. The cooled refrigerant becomes a medium-temperature, high-pressure liquid. After passing through the first electronic expansion valve 309, it expands and depressurizes, then enters the front cabin heat exchanger 314 to vaporize and absorb heat, absorbing the heat from the ambient air flowing over its surface. Then, after passing through the fourth solenoid valve 313 of the second branch pipe, it enters the gas-liquid separator 301. After gas-liquid separation in the gas-liquid separator 301, the gaseous refrigerant flows back to the inlet of the compressor 302, completing the cycle.

[0064] like Figure 4 As shown, when the thermal management system assembly of the multi-channel electronic water valve is in the fourth mode, the first connection port 1011 is connected to the second connection port 1012, the third connection port 1013 is connected to the eighth connection port 1018, the fourth connection port 1014 is connected to the fifth connection port 1015, and the sixth connection port 1016 is connected to the seventh connection port 1017. This mode can be used in the following conditions: in low-temperature environments, the passenger compartment needs heating, the power battery 202 is at a constant temperature or has no need, the electric drive system 500 can provide waste heat to heat the passenger compartment, that is, the battery system 200 circulates independently, the electric drive system is connected in series with the battery cooler 201 through the multi-way valve 101, the heating component completes circulation through the first channel port to the third channel port of the proportional valve 208, and the air conditioning system 300 is in heat pump mode.

[0065] Specifically, in the electric drive system 500, the first electronic water pump 502 drives the coolant to flow through the first water temperature sensor and then through the electric drive assembly 501 to absorb the heat released by it. The coolant, after its temperature rises, passes through the eighth connection port 1018 and the third connection port 1013 of the multi-way valve 101, and then enters the battery cooler 201 through the second pipeline 210 and the second temperature sensor 209, releasing heat to the refrigerant flowing through the battery cooler 201. The cooled coolant then passes through the second connection port 1012 and the first connection port 1011 of the multi-way valve 101 and returns to the inlet of the first electronic water pump 502, completing the circulation.

[0066] In the battery system 200, when the power battery 202 has no demand, the third electronic water pump 203 does not work and there is no coolant flow in the circuit; when the power battery 202 needs to be evenly heated, the third electronic water pump 203 drives the coolant to flow through the power battery 202 after passing through the third water temperature sensor, and then through the fourth connection port 1014 and the fifth connection port 1015 of the multi-way valve 101 back to the inlet of the third electronic water pump 203 to complete the cycle.

[0067] It should be noted that when the heat pump mode of the air conditioning system 300 can meet the heating needs of the passenger compartment (i.e., the indoor condenser 303 of the air conditioning system 300 is providing heating), the second electronic water pump 205 and the heater 206 do not work, and there is no coolant flow in the circuit; when the heat pump mode of the air conditioning system 300 cannot fully meet the heating needs of the passenger compartment, the second electronic water pump 205 drives the coolant, which enters the heater 206 for heating, then enters the warm air core 207 to heat the air in the passenger compartment flowing over its surface, and then enters the proportional valve 208. After passing through the first channel port and the third channel port, it returns to the inlet of the second electronic water pump 205 to complete the circulation.

[0068] In the air conditioning system 300, the low-temperature, low-pressure refrigerant is compressed by the compressor 302 into a high-temperature, high-pressure gas. After flowing through the first solenoid valve 305, it enters the indoor condenser 303, where it condenses and releases heat, heating the air in the passenger compartment flowing over its surface. The cooled refrigerant becomes a medium-temperature, high-pressure liquid, which then passes through the third solenoid valve 310 and the first refrigerant check valve 311 before flowing through the third electronic expansion valve 312. After expansion and decompression, it enters the battery cooler 201, where it vaporizes and absorbs heat from the coolant flowing inside. The refrigerant then passes through the gas-liquid separator 301, where it undergoes gas-liquid separation. The gaseous refrigerant flows back to the inlet of the compressor 302, completing the cycle.

[0069] It is understandable that the thermal management system assembly of the multi-channel electronic water valve operates in modes including, but not limited to, the four modes mentioned above. Only typical modes are described above.

[0070] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A thermal management system assembly for a multi-channel electronic water valve, characterized in that, include: A coolant system includes a multi-way valve, a battery cooler, a heating element, a radiator, and connecting pipes. The multi-way valve is equipped with a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, and a ninth connection port. The connecting pipes are respectively connected to the sixth connection port and the seventh connection port. The battery cooler is equipped with a first port, a second port, a third port, and a fourth port. The first port is connected to the second connection port. The heating element is respectively connected to the third connection port and the second port for heat exchange with the passenger compartment. The radiator is equipped with a first pipe port and a second pipe port. The first pipe port is connected to the ninth connection port, and the second pipe port is connected to the eighth connection port for heat exchange between the coolant system and the outside environment. A battery system configured to connect to the fourth and fifth connection ports respectively for heat exchange with the coolant system; An electric drive system is configured to be connected to the first connection port and the eighth connection port respectively, and the electric drive system is connected to the heat sink; An air conditioning system includes an air conditioning unit and a front cabin heat exchanger. The air conditioning unit is connected to the third port and the fourth port respectively for heat exchange with the passenger compartment and / or the coolant system. The front cabin heat exchanger is connected to the air conditioning unit for heat exchange between the air conditioning unit and the outside environment. The air conditioning assembly includes a gas-liquid separator, a compressor, an indoor condenser, and an evaporator. The gas-liquid separator is connected to the compressor and the third port, respectively. The compressor is connected to the indoor condenser and the front compartment heat exchanger, respectively. The indoor condenser is connected to the front compartment heat exchanger, respectively. The evaporator is connected to the front compartment heat exchanger and the gas-liquid separator, respectively. A first solenoid valve is installed on the pipeline between the indoor condenser and the compressor, and a second solenoid valve is installed on the pipeline between the front compartment heat exchanger and the compressor, so that the indoor condenser and the front compartment heat exchanger are connected to the compressor in parallel.

2. The thermal management system assembly for the multi-channel electronic water valve according to claim 1, characterized in that, The heating assembly includes a second electronic water pump, a heater, a warm air core, and a proportional valve. The second electronic water pump is connected to the heater and the third connection port. The proportional valve is equipped with a first channel port, a second channel port, and a third channel port. The second channel port is connected to the second port. The third channel port is connected between the second electronic water pump and the third connection port through a first pipeline. The warm air core is connected to the heater and the first channel port.

3. The thermal management system assembly for the multi-channel electronic water valve according to claim 2, characterized in that, The heating assembly further includes a second pipeline, one end of which is connected between the second channel opening and the second port, and the other end of which is connected between the second electronic water pump and the third connection port.

4. The thermal management system assembly for the multi-channel electronic water valve according to claim 1, characterized in that, The battery system includes a power battery, a third electronic water pump, and a third temperature sensor. The power battery is connected to the fourth connection port and the third temperature sensor, respectively, and the third electronic water pump is connected to the fifth connection port and the third temperature sensor, respectively.

5. The thermal management system assembly for the multi-channel electronic water valve according to claim 1, characterized in that, A second refrigerant check valve and a second electronic expansion valve are installed on the pipeline between the evaporator and the front compartment heat exchanger, and a first electronic expansion valve is installed on the pipeline between the indoor condenser and the front compartment heat exchanger.

6. The thermal management system assembly for the multi-channel electronic water valve according to claim 5, characterized in that, The air conditioning assembly also includes a first branch pipe, which is connected to the pipe between the evaporator and the front compartment heat exchanger. One end of the first branch pipe is connected between the indoor condenser and the front compartment heat exchanger, and the other end is connected to the fourth port. A third solenoid valve, a first refrigerant check valve, and a third electronic expansion valve are respectively installed on the first branch pipe.

7. The thermal management system assembly for the multi-channel electronic water valve according to claim 5, characterized in that, The air conditioning assembly also includes a second branch pipe, one end of which is connected to the pipe between the front compartment heat exchanger and the second refrigerant check valve, and the other end is connected to the gas-liquid separator. A fourth solenoid valve is also provided on the second branch pipe.

8. The thermal management system assembly for the multi-channel electronic water valve according to claim 1, characterized in that, The coolant system also includes an expansion assembly, which is connected to the radiator, the heating assembly and the electric drive system respectively.

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