A coupled thermal management system and vehicle

Abstract

The utility model discloses a kind of coupled heat management systems.The coupled heat management system includes compressor, condenser, air conditioner evaporator, battery cooler, battery pack and refrigerator, compressor and condenser are connected in series, one end of air conditioner evaporator and battery cooler parallel connection is connected with condenser, the other end is connected with compressor, first control valve is arranged on the pipeline of air conditioner evaporator and battery cooler parallel connection, second control valve is arranged on the pipeline of battery cooler and air conditioner evaporator parallel connection, battery cooler is further connected with water pump, water pump is connected with three-way water valve, interface one of three-way water valve is connected with water pump, interface two of three-way water valve is connected with battery pack, interface three of three-way water valve is connected with refrigerator, electric heater is arranged on the pipeline of refrigerator and battery pack parallel connection to battery cooler.The utility model solves the problem that prior art is not conducive to low temperature environment use, and high cost.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a coupled thermal management system and vehicle. Background Technology

[0002] There is an existing Chinese utility model patent application with publication number CN120134895A, entitled "Refrigerant Circuit, Thermal Management System, Control Method and Vehicle". It aims to reduce costs by connecting the refrigerator evaporator, battery cooler, and refrigerator evaporator in parallel and sharing a single compressor. However, the compressor is also used to provide the heat transfer medium when heating the battery and refrigerator, resulting in slow heating, which is not conducive to use in low-temperature environments. Furthermore, the inclusion of an expansion valve on each branch circuit increases costs. Utility Model Content

[0003] The purpose of this invention is to provide a coupled thermal management system that is advantageous for use in low-temperature environments and has low cost.

[0004] To achieve the above-mentioned objectives of this utility model, the coupled thermal management system adopts the following technical solution: A coupled thermal management system includes a compressor, a condenser, an air conditioning evaporator, a battery cooler, a battery pack, and a refrigerator. The compressor and condenser are connected in series. One end of the air conditioning evaporator and battery cooler connected in parallel is connected to the condenser, and the other end is connected to the compressor. A first control valve is installed on the parallel connection line between the air conditioning evaporator and the battery cooler, and a second control valve is installed on the parallel connection line between the battery cooler and the air conditioning evaporator. The battery cooler is also connected to a water pump, which is connected to a three-way water valve. One port of the three-way water valve is connected to the water pump, and the other port is connected to the battery pack. The water valve's interface three is connected to the refrigerator. An electric heater is installed on the pipeline connecting the refrigerator and the battery pack in parallel to the battery cooler. The refrigerator includes a cabinet, and a cold storage heat exchanger is installed on one side of the cabinet. One end of the cold storage heat exchanger is connected to interface three of the three-way water valve, and the other end is connected in parallel to the battery pack through a pipeline. A cold storage assembly is installed on the outside of the cold storage heat exchanger. A semiconductor refrigeration chip is installed on the side of the cold storage assembly facing the cabinet's storage cavity. An air-cooled heat exchange fin is installed on the outside of the end of the semiconductor refrigeration chip facing the cabinet's storage cavity. A fan is installed on the top of the air-cooled heat exchange fin. A thermoelectric cooler is installed on the inner wall of the cabinet.

[0005] Preferably, the cold storage assembly includes a metal shell fitted onto the outside of the cold storage heat exchanger, a cold storage liquid is injected into the metal shell, and the cold storage heat exchanger is completely immersed in the cold storage liquid.

[0006] Preferably, the first control valve is a thermostatic expansion valve or an electronic expansion valve.

[0007] Preferably, the second control valve is an electronic expansion valve.

[0008] To achieve the aforementioned objectives of this utility model, the vehicle of this utility model adopts the following technical solution: A vehicle that employs a coupled thermal management system.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Add an electric heater. The electric heater is not affected by the ambient temperature and heats up immediately when powered on. It can quickly fill the initial heat gap and allow the system to operate stably in low-temperature environments.

[0010] 2. Reducing the number of control valves and pipeline interfaces not only simplifies the vehicle assembly process and reduces costs, but also reduces the risk of leakage caused by assembly errors.

[0011] 3. Adding a thermoelectric cooler (TEC) inside the refrigerator allows for reverse conduction of the TEC to achieve heating, saving the need for the refrigerator's built-in heater. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the coupled thermal management system of this utility model.

[0013] Figure 2 This is a schematic diagram of the refrigerator's structure.

[0014] Figure 3 This diagram illustrates the working principle of the battery pack and the refrigerator's cooling mode.

[0015] Figure 4 This is a schematic diagram illustrating the working principle of the battery pack and the refrigerator's heating mode.

[0016] Figure 5 The diagram shows the working principle of the refrigerator in battery pack cooling mode when it is not working.

[0017] Figure 6 The diagram shows the working principle of the refrigerator not working and the battery pack heating mode.

[0018] Figure 7 This is a diagram illustrating the working principle of a refrigerator in a non-operating mode (refrigeration and battery pack not working).

[0019] Figure 8 This is a diagram illustrating the working principle of a refrigerator in heating mode when the battery pack is not in operation.

[0020] Among them, 10 is the compressor, 20 is the condenser, 30 is the air conditioner evaporator, 40 is the battery cooler, 50 is the first control valve, 60 is the second control valve, 70 is the water pump, 80 is the three-way water valve, 801 is the interface one of the three-way water valve, 802 is the interface two of the three-way water valve, 803 is the interface three of the three-way water valve, 90 is the battery pack, 100 is the refrigerator, 1001 is the cabinet, 1002 is the cold storage heat exchanger, 1003 is the cold storage assembly, 1004 is the semiconductor refrigeration chip, 1005 is the air-cooled heat exchange fins, 1006 is the fan, and 110 is the electric heater. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0022] like Figure 1-2 As shown, a coupled thermal management system includes a compressor 10. The compressor 10 is connected in series with a condenser 20 via piping. The condenser 20 is connected to an air conditioner evaporator 30 and a battery cooler 40 via piping. One end of the air conditioner evaporator 30 and the battery cooler 40 connected in parallel is connected to the condenser 20, and the other end is connected to the compressor 10. A first control valve 50, which is a thermal expansion valve, is installed on the parallel piping between the air conditioner evaporator 30 and the battery cooler 40. A second control valve 60, which is an electronic expansion valve, is installed on the parallel piping between the battery cooler 40 and the air conditioner evaporator 30. The battery cooler 60 is also connected to a water pump 70 via piping. The water pump 70 is connected to a three-way water valve 80 via piping. Interface 1 801 of the three-way water valve is connected to the water pump 70. Interface 2 802 of the three-way water valve is connected to a battery pack 90 via piping. Interface 3 803 of the three-way water valve is connected to a refrigerator 100 via piping. The refrigerator 100 includes a cabinet 1001. A cold storage heat exchanger 1002 is installed on the left side of 1001. One end of the cold storage heat exchanger 1002 is connected to the interface 803 of a three-way water valve, and the other end is connected in parallel to the battery pack 90 through a pipeline. A cold storage assembly 1003 is installed on the outside of the cold storage heat exchanger 1001. The cold storage assembly includes a metal shell fitted onto the outside of the cold storage heat exchanger. Cold storage liquid is injected into the metal shell, and the cold storage heat exchanger is completely immersed in the cold storage liquid. A semiconductor is installed on the side of the cold storage assembly 1003 facing the storage cavity of the housing 1001. The refrigeration chip 1004, a semiconductor refrigeration chip 1004, has an air-cooled heat exchange fin 1005 installed on the outer side of the end facing the storage cavity of the cabinet 1001. A fan 1006 is installed on the top of the air-cooled heat exchange fin 1005. A thermoelectric cooler (TEC) is installed on the inner wall of the cabinet 1001. The TEC can be used for reverse conduction to achieve the heating function, saving the refrigerator's built-in heater. An electric heater 110 is installed on the pipe that connects the cold storage heat exchanger 1001 and the battery pack 90 in parallel to the battery cooler 40.

[0023] like Figure 3-8 As shown, the specific working process and principle of the coupled thermal management system of this utility model are as follows: In battery pack and refrigerator cooling mode: the compressor works, the electric heater does not work, and the three-way water valve has ports one, two, and three open. The battery water pump draws out the refrigerant that has been cooled by the compressor in the battery cooler. The refrigerant completes the refrigerant circulation through the cold storage heat exchanger, battery pack, and electric heater. In battery pack and refrigerator heating mode: the compressor does not work, the electric heater works, and the three-way water valve ports one, two, and three are all open. The battery water pump extracts the heat medium heated by the electric heater in the battery cooler. The heat medium completes the heat medium circulation through the cold storage heat exchanger, battery pack, and electric heater. When the refrigerator is not working and the battery pack is in cooling mode: the compressor is working, the electric heater is not working, the first and second ports of the three-way water valve are open, and the battery water pump draws out the refrigerant that has been cooled by the compressor in the battery cooler. The refrigerant then completes the refrigerant circulation through the battery pack and the electric heater. When the refrigerator is not working and the battery pack is in heating mode: the compressor is not working, the electric heater is working, the first and second ports of the three-way water valve are open, and the battery water pump draws out the heat medium heated by the electric heater in the battery cooler. The heat medium completes the heat medium circulation through the battery pack and the electric heater. In the refrigerator's cooling and battery pack non-working mode: the compressor works, the electric heater does not work, the three-way water valve's ports one and three are open, and the battery water pump draws out the refrigerant that has been cooled by the compressor from the battery cooler. The refrigerant then completes its circulation through the cold storage heat exchanger and the electric heater. In the refrigerator's heating and battery pack non-operating mode: the compressor does not work, the electric heater works, the three-way water valve's ports one and three are open, and the battery water pump extracts the heat medium heated by the electric heater from the battery cooler. The heat medium completes its circulation through the cold storage heat exchanger and the electric heater.

[0024] A vehicle that employs a coupled thermal management system.

[0025] The detailed description listed above is merely a specific description of feasible implementation methods of this utility model and is not intended to limit the scope of protection of this utility model.

Claims

1. A coupled thermal management system, comprising a compressor, a condenser, an air conditioning evaporator, a battery cooler, a battery pack, and a refrigerator, wherein the compressor and condenser are connected in series, and one end of the air conditioning evaporator and battery cooler connected in parallel is connected to the condenser, and the other end is connected to the compressor, characterized in that: A first control valve is installed on the parallel pipeline connecting the air conditioner evaporator and the battery cooler. A second control valve is installed on the same pipeline. The battery cooler is also connected to a water pump, which is connected to a three-way water valve. One port of the three-way water valve is connected to the water pump, the second port is connected to the battery pack, and the third port is connected to the refrigerator. An electric heater is installed on the pipeline connecting the refrigerator and the battery pack to the battery cooler. The refrigerator includes a cabinet. A cold storage heat exchanger is installed on one side of the cabinet. One end of the cold storage heat exchanger is connected to the third port of the three-way water valve, and the other end is connected to the battery pack in parallel through a pipeline. A cold storage assembly is installed on the outside of the cold storage heat exchanger. A semiconductor refrigeration chip is installed on the side of the cold storage assembly facing the storage cavity of the cabinet. An air-cooled heat exchange fin is installed on the outside of the end of the semiconductor refrigeration chip facing the storage cavity of the cabinet. A fan is installed on the top of the air-cooled heat exchange fin. A thermoelectric cooler is installed on the inner wall of the cabinet.

2. The coupled thermal management system according to claim 1, characterized in that: The cold storage assembly includes a metal shell fitted onto the outside of the cold storage heat exchanger, with cold storage liquid injected into the metal shell, and the cold storage heat exchanger completely immersed in the cold storage liquid.

3. The coupled thermal management system according to claim 1, characterized in that: The first control valve is a thermostatic expansion valve or an electronic expansion valve.

4. The coupled thermal management system according to claim 1, characterized in that: The second control valve is an electronic expansion valve.

5. A vehicle, characterized in that: The vehicle employs a coupled thermal management system as described in any one of claims 1-4.

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