Thermal management integrated module assembly, thermal management system, and vehicle

Abstract

The application discloses a kind of thermal management integrated module assembly, including battery water pump, refrigerant four-way valve, water side flow channel plate, three-way water valve, battery cooler, gas-liquid separator, first valve block and second valve block, battery cooler is connected with battery cooling circuit and passenger compartment circuit, battery water pump, battery cooler, gas-liquid separator, refrigerant four-way valve and three-way water valve are set on water side flow channel plate, gas-liquid separator is connected with refrigerant four-way valve and first valve block, first valve block and second valve block are set on battery cooler and battery cooler is connected with the refrigerant road of second valve block, cooling water road is arranged inside water side flow channel plate, cooling water road is connected with battery cooler, three-way water valve and battery water pump, gas-liquid separator, refrigerant four-way valve, first valve block and second valve block are connected with passenger compartment circuit.The thermal management integrated module assembly of the application is connected by valve block, refrigerant four-way valve is simultaneously arranged to replace single-way valve, degree of integration is high, can save mold cost, reduce the energy consumption of whole vehicle, reduce volume, reduce cost.The application also discloses a kind of thermal management system and a kind of vehicle.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology. Specifically, this invention relates to a thermal management integrated module assembly, a thermal management system, and a vehicle. Background Technology

[0002] With the rapid development of the global new energy vehicle industry, the market penetration rate of new energy vehicles continues to rise, placing higher demands on the performance, efficiency, and integration level of vehicle thermal management systems. Currently, the thermal management architecture of new energy vehicles is becoming increasingly complex. To improve the integration of components, existing technologies often adopt thermal management integrated modules composed of single-channel refrigerant valves and flow channels. At the same time, two cores, an evaporator and an indoor condenser, are set in the HVAC (heating, ventilation, and air conditioning) system to achieve cooling and heating functions.

[0003] However, this traditional structure has many limitations: on the one hand, due to the control method of the single-channel refrigerant valve and the dual-core design, the heat exchange efficiency of the HVAC system is low, and the two cores not only increase the system size but also raise manufacturing and assembly costs; on the other hand, the lower limit of the operating temperature of existing heat pump systems is -15°C, making it difficult to operate stably in lower temperature environments and failing to meet the needs of cold regions. In addition, the combination structure of the single-channel refrigerant valve and the flow channel plate requires a separate mold design, resulting in high mold costs, and the overall thermal management module is large, which is not conducive to optimizing the overall vehicle space layout. At the same time, the high energy consumption also affects the vehicle's range.

[0004] A thermal management integrated module assembly is provided, particularly regarding how to reduce its size. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a thermal management integrated module assembly with the aim of reducing its size.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a thermal management integrated module assembly, including a battery water pump, a refrigerant four-way valve, a water-side flow channel plate, a three-way water valve, a battery cooler, a gas-liquid separator, a first valve block, and a second valve block. The battery cooler is connected to the battery cooling circuit and the passenger compartment circuit. The battery water pump, battery cooler, gas-liquid separator, refrigerant four-way valve, and three-way water valve are disposed on the water-side flow channel plate. The gas-liquid separator is connected to the refrigerant four-way valve and the first valve block. The first valve block and the second valve block are disposed on the battery cooler, and the refrigerant circuit of the battery cooler and the second valve block are connected. A cooling water circuit is disposed inside the water-side flow channel plate. The cooling water circuit is connected to the battery cooler, the three-way water valve, and the battery water pump. The gas-liquid separator, refrigerant four-way valve, first valve block, and second valve block are connected to the passenger compartment circuit.

[0007] The passenger compartment circuit is equipped with a first refrigerant solenoid valve and a refrigerant temperature sensor. The first valve block is connected to the first refrigerant solenoid valve, and the first refrigerant solenoid valve and the refrigerant temperature sensor are mounted on the first valve block.

[0008] The passenger compartment circuit is equipped with a second refrigerant solenoid valve and an electronic expansion valve. The second valve block is connected to the second refrigerant solenoid valve and the electronic expansion valve, and the first refrigerant solenoid valve and the electronic expansion valve are mounted on the second valve block.

[0009] The passenger compartment circuit is equipped with a compressor, an indoor heat exchanger, and an outdoor heat exchanger. The refrigerant four-way valve is connected to the compressor, the indoor heat exchanger, and the outdoor heat exchanger. The refrigerant four-way valve is located between the compressor and the indoor heat exchanger, and between the compressor and the outdoor heat exchanger. The indoor heat exchanger is connected to the outdoor heat exchanger, and the outdoor heat exchanger is connected to the liquid separator.

[0010] When the thermal management system is operating in winter heating mode, the refrigerant flow direction is: compressor - refrigerant four-way valve - indoor heat exchanger - outdoor heat exchanger - refrigerant four-way valve - gas-liquid separator - compressor.

[0011] When the thermal management system is operating in summer cooling mode, the refrigerant flow direction is: compressor - refrigerant four-way valve - outdoor heat exchanger - indoor heat exchanger - gas-liquid separator - compressor.

[0012] A first heater is installed between the indoor heat exchanger and the blower.

[0013] A second heater is provided in the battery cooling circuit. The battery cooler is located between the battery water pump and the second heater and is connected to the battery water pump and the second heater. The three-way water valve is located between the battery water pump and the second heater and is connected to the power battery pack, the battery water pump and the second heater.

[0014] The present invention also provides a thermal management system, including the aforementioned thermal management integrated module assembly.

[0015] The present invention also provides a vehicle including the aforementioned thermal management system.

[0016] The thermal management integrated module assembly of the present invention is connected by a valve block, and a refrigerant four-way valve is set to replace the single-way valve. It has a high degree of integration, which can save mold costs, reduce vehicle energy consumption, reduce size, and reduce costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the thermal management integrated module assembly of the present invention;

[0018] Figure 2 This is another structural schematic diagram of the thermal management integrated module assembly of the present invention;

[0019] Figure 3 This is a schematic diagram of the working principle of the thermal management system of this invention;

[0020] Figure 4 This is a schematic diagram of the refrigerant flow in air conditioning during winter heating mode;

[0021] Figure 5 This is a schematic diagram of the refrigerant flow in the air conditioner during summer cooling mode;

[0022] Figure 6 This is a top view of the thermal management integrated module assembly of the present invention;

[0023] Figure 7 This is a side view of the thermal management integrated module assembly of the present invention;

[0024] Figure 8 This is a schematic diagram of the water-side flow channel plate;

[0025] Figure 9 This is a cross-sectional view of the water-side flow channel plate;

[0026] Figure 10 This is a schematic diagram of the structure of the first valve block;

[0027] Figure 11 This is a cross-sectional view of the first valve block;

[0028] Figure 12 This is a schematic diagram of the second valve block;

[0029] Figure 13 This is a cross-sectional view of the second valve block;

[0030] The markings in the above diagrams are as follows: 1. Second refrigerant solenoid valve; 2. First refrigerant solenoid valve; 3. Refrigerant four-way valve; 4. Water temperature sensor; 5. First air conditioning pipe; 6. Water-side flow channel plate; 7. Gas-liquid separator; 8. Second air conditioning pipe; 9. Refrigerant temperature sensor; 10. First valve block; 11. Electronic expansion valve; 12. Battery water pump; 13. Three-way water valve; 14. Second valve block; 15. Battery cooler; 16. Compressor; 17. First heater; 18. Second heater; 19. Indoor heat exchanger; 20. Outdoor heat exchanger; 21. Blower; 22. Cooling fan; 23. Power battery pack. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.

[0033] It should be noted that in the following embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution; they are merely for the convenience of description.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Firstly, such as Figures 1 to 13 As shown, this embodiment of the invention provides a thermal management integrated module assembly for a vehicle thermal management system, including a battery water pump 12, a refrigerant four-way valve 3, a water-side flow channel plate 6, a three-way water valve 13, a battery cooler 15, a gas-liquid separator 7, a first valve block 10, and a second valve block 14. The water-side flow channel plate 6 is used to install onto the vehicle body. The battery cooler 15 is connected to the battery cooling circuit and the passenger compartment circuit. The battery water pump 12, battery cooler 15, gas-liquid separator 7, refrigerant four-way valve 3, and three-way water valve 13 are configured with... The gas-liquid separator 7 is placed on the water-side flow channel plate 6 and is connected to the refrigerant four-way valve 3 and the first valve block 10. The first valve block 10 and the second valve block 14 are set on the battery cooler 15 and the battery cooler 15 is connected to the refrigerant circuit of the first valve block 10 and the refrigerant circuit of the second valve block 14. The water-side flow channel plate 6 is provided with a cooling water circuit, which is connected to the battery cooler 15, the three-way water valve 13 and the battery water pump 12. The gas-liquid separator 7, the refrigerant four-way valve 3, the first valve block 10 and the second valve block 14 are connected to the passenger compartment circuit.

[0036] Specifically, in the embodiments of the present invention, such as Figure 1 and Figure 2As shown, the battery cooler 15 is located on the water-side flow channel plate 6, and is connected to the water-side flow channel plate 6 by a water passage. The first valve block 10 is located to the right of the battery cooler 15, and is connected to the refrigerant passage of the first valve block 10. The second valve block 14 is located to the right of the battery cooler 15, and is connected to the refrigerant passage of the second valve block 14. The refrigerant four-way valve 3 is fixedly installed on the water-side flow channel plate 6, and is connected to the refrigerant passage of the first valve block 10. The gas-liquid separator 7 is fixedly installed on the water-side flow channel plate 6, and is connected to the refrigerant four-way valve 3 via the first air conditioning pipe 5, and to the first valve block 10 via the second air conditioning pipe 8.

[0037] In embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the three-way water valve 13 is fixedly installed on the water-side flow channel plate 6, and the three-way water valve 13 is connected to the water-side flow channel plate 6 by a water passage. The battery-powered water pump 12 is fixedly installed on the water-side flow channel plate 6, and the battery-powered water pump 12 is connected to the water-side flow channel plate 6 by a water passage.

[0038] In embodiments of the present invention, such as Figure 8 and Figure 9 As shown, three external water pipes are provided on the water-side flow channel plate 6. The three external water pipes are used to connect to the vehicle's water circuit and to the internal cooling water circuit.

[0039] In embodiments of the present invention, such as Figure 10 and Figure 11 As shown, the first valve block 10 is provided with an external refrigerant interface, which is used to connect to the second air conditioning pipe 8. The second air conditioning pipe 8 is connected to the refrigerant circuit inside the first valve block 10 through the external refrigerant interface.

[0040] In embodiments of the present invention, such as Figure 12 and Figure 13 As shown, the second valve block 14 is provided with two external refrigerant interfaces. The two external refrigerant interfaces are used to connect to two external pipes. The two external pipes are connected to the refrigerant circuit inside the second valve block 14 through the external refrigerant interfaces. The refrigerant circuit of the second valve block 14 is connected to the refrigerant circuit of the battery cooler 15 through the external refrigerant interfaces.

[0041] In this embodiment of the invention, the refrigerant four-way valve 3 has four external refrigerant ports, which are used to connect to the passenger compartment circuit. The gas-liquid separator 7 has one external refrigerant port, which is connected to the passenger compartment circuit. Figure 3As shown, the refrigerant four-way valve 3 is equipped with four external refrigerant interfaces, namely the first refrigerant interface, the second refrigerant interface, the third refrigerant interface and the fourth refrigerant interface. The first refrigerant interface is connected to the compressor 16, the second refrigerant interface is connected to the indoor heat exchanger 19, the third refrigerant interface is connected to the outdoor heat exchanger 20, and the fourth refrigerant interface is connected to the gas-liquid separator 7 through the first air conditioning pipe 5.

[0042] In embodiments of the present invention, such as Figures 1 to 3 As shown, the passenger compartment circuit includes a first refrigerant solenoid valve 2, a second refrigerant solenoid valve 1, a refrigerant temperature sensor 9, and an electronic expansion valve 11. A first valve block 10 is connected to the first refrigerant solenoid valve 2, and the first refrigerant solenoid valve 2 and the refrigerant temperature sensor 9 are mounted on the first valve block 10. A second valve block 14 is connected to the second refrigerant solenoid valve 1 and the electronic expansion valve 11, and the second refrigerant solenoid valve 1 and the electronic expansion valve 11 are fixedly mounted on the second valve block 14. The electronic expansion valve 11 is located between the second refrigerant solenoid valve 1 and the second valve block 14, with both ends connected to the second refrigerant solenoid valve 1 and the second valve block 14, respectively. The second valve block 14 is connected to the battery cooler 15. The second refrigerant solenoid valve 1 is located between the outdoor heat exchanger 20 and the electronic expansion valve 11, with one end connected between the outdoor heat exchanger 20 and the indoor heat exchanger 19, and the other end connected to the electronic expansion valve 11. The first refrigerant solenoid valve 2 is located between the refrigerant four-way valve 3 and the first valve block 10. One end of the first refrigerant solenoid valve 2 is directly connected to the refrigerant four-way valve 3, and the other end of the first refrigerant solenoid valve 2 is directly connected to the first valve block 10. The two end faces of the first refrigerant solenoid valve 2 are directly attached to the end face of the refrigerant four-way valve 3 and the end face of the first valve block 10, respectively.

[0043] In embodiments of the present invention, such as Figures 1 to 3 As shown, a compressor 16, an indoor heat exchanger 19, and an outdoor heat exchanger 20 are installed in the passenger compartment circuit. A refrigerant four-way valve 3 is connected to the compressor 16, the indoor heat exchanger 19, and the outdoor heat exchanger 20. The refrigerant four-way valve 3 is located between the compressor 16 and the indoor heat exchanger 19, and between the compressor 16 and the outdoor heat exchanger 20. The indoor heat exchanger 19 is connected to the outdoor heat exchanger 20, and the outdoor heat exchanger 20 is connected to the liquid separator.

[0044] In this embodiment of the invention, when the thermal management system is operating in winter heating mode, the compressor 16 operates, and the refrigerant flow direction is: compressor 16 - refrigerant four-way valve 3 - indoor heat exchanger 19 - outdoor heat exchanger 20 - refrigerant four-way valve 3 - gas-liquid separator 7 - compressor 16, thus achieving the winter air conditioning heating effect.

[0045] In this embodiment of the invention, when the thermal management system is operating in summer cooling mode, the compressor 16 operates, and the air conditioning refrigerant flows as follows: compressor 16 - refrigerant four-way valve 3 - outdoor heat exchanger 20 - indoor heat exchanger 19 - first refrigerant solenoid valve 2 - first valve block 10 - gas-liquid separator 7 - compressor 16, thereby achieving the summer air conditioning cooling effect.

[0046] In embodiments of the present invention, such as Figure 3 As shown, a first heater 17 is provided between the indoor heat exchanger 19 and the blower 21. The first heater 17 is used to start working after the preset conditions are met and can generate heat. After the blower 21 starts working, it generates airflow that blows towards the first heater 17 and the indoor heat exchanger 19. The heat generated by the first heater 17 heats the refrigerant flowing through the indoor heat exchanger 19. The first heater 17 is an APTC (Air PTC, positive temperature coefficient thermistor heater).

[0047] In this embodiment of the invention, the indoor heat exchanger 19, the blower 21, and the first heater 17 form an HVAC assembly. A refrigerant four-way valve 3 replaces the single-way valve. The HVAC assembly eliminates the indoor condenser. The indoor heat exchanger can be used as an evaporator for cooling or as a condenser for heating. Eliminating one core improves energy utilization efficiency and makes the system more efficient. The heat pump system can operate at an ambient temperature of -15°C.

[0048] Furthermore, in this embodiment of the invention, by setting two valve blocks with flow channels inside, which function as pipelines, some electronic valves and sensors can be installed. Through the water-side flow channel plate 6 and the flow channels inside the valve blocks, the external pipeline connection is reduced, the system structure is simplified, the integration is improved, and the thermal management integrated module assembly structure is more compact, the volume of the thermal management integrated module assembly can be reduced, and the thermal management integrated module assembly occupies less layout space.

[0049] In embodiments of the present invention, such as Figure 3 As shown, a second heater 18 is provided in the battery cooling circuit. The second heater 18 is a WPTC (Water PTC, Water Positive Temperature Coefficient Thermistor Heater). The outlet of the battery cooler 15 is connected to the inlet of the battery water pump 12 through a cooling water passage provided inside the water-side flow channel plate 6. The outlet of the battery water pump 12 is connected to the inlet of the three-way water valve 13 through a cooling water passage provided inside the water-side flow channel plate 6. The battery water pump 12 and the three-way water valve 13 are directly connected to the cooling water passage of the water-side flow channel plate 6. The first outlet of the three-way water valve 13 is connected to the inlet of the power battery pack 23. The outlet of the power battery pack 23 is connected to the inlet of the second heater 18. The outlet of the second heater 18 is connected to the inlet of the battery cooler 15. The second outlet of the three-way water valve 13 is connected to the inlet of the second heater 18.

[0050] like Figure 1 and Figure 2 As shown, the battery water pump 12 and the three-way water valve 13 are arranged adjacent to each other, and are located on the same side of the water-side flow channel plate 6. The battery water pump 12 and the three-way water valve 13 do not need to be connected to the cooling water circuit of the water-side flow channel plate 6 through a separate pipeline. The battery cooler 15, the first valve block 10 and the second valve block 14 are located on the same side of the water-side flow channel plate 6.

[0051] Secondly, such as Figure 3 As shown, this embodiment of the invention also provides a thermal management system, including the thermal management integrated module assembly with the above-described structure. This thermal management integrated module assembly can be referred to... Figures 1 to 13 Further details will not be elaborated here. Since the thermal management system of the present invention includes the thermal management integrated module assembly described above, it possesses all the advantages of the aforementioned thermal management integrated module assembly.

[0052] Thirdly, embodiments of the present invention also provide a vehicle including a thermal management system with the above-described structure, the thermal management system including a thermal management integrated module assembly with the above-described structure. The vehicle is an electric vehicle, and this thermal management integrated module assembly can be referred to... Figures 1 to 13 Further details will not be elaborated here. Since the vehicle of the present invention includes the thermal management integrated module assembly described above, it possesses all the advantages of the aforementioned thermal management integrated module assembly.

[0053] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A thermal management integrated module assembly, characterized in that: The device includes a battery water pump, a refrigerant four-way valve, a water-side flow channel plate, a three-way water valve, a battery cooler, a gas-liquid separator, a first valve block, and a second valve block. The battery cooler is connected to the battery cooling circuit and the passenger compartment circuit. The battery water pump, battery cooler, gas-liquid separator, refrigerant four-way valve, and three-way water valve are mounted on the water-side flow channel plate. The gas-liquid separator is connected to the refrigerant four-way valve and the first valve block. The first and second valve blocks are mounted on the battery cooler, and the battery cooler is connected to the refrigerant circuit of the second valve block. A cooling water circuit is provided inside the water-side flow channel plate, and the cooling water circuit is connected to the battery cooler, the three-way water valve, and the battery water pump. The gas-liquid separator, refrigerant four-way valve, first valve block, and second valve block are connected to the passenger compartment circuit.

2. The thermal management integrated module assembly according to claim 1, characterized in that: The passenger compartment circuit is equipped with a first refrigerant solenoid valve and a refrigerant temperature sensor. The first valve block is connected to the first refrigerant solenoid valve, and the first refrigerant solenoid valve and the refrigerant temperature sensor are mounted on the first valve block.

3. The thermal management integrated module assembly according to claim 1, characterized in that: The passenger compartment circuit is equipped with a second refrigerant solenoid valve and an electronic expansion valve. The second valve block is connected to the second refrigerant solenoid valve and the electronic expansion valve, and the first refrigerant solenoid valve and the electronic expansion valve are mounted on the second valve block.

4. The thermal management integrated module assembly according to any one of claims 1 to 3, characterized in that: The passenger compartment circuit is equipped with a compressor, an indoor heat exchanger, and an outdoor heat exchanger. The refrigerant four-way valve is connected to the compressor, the indoor heat exchanger, and the outdoor heat exchanger. The refrigerant four-way valve is located between the compressor and the indoor heat exchanger, and between the compressor and the outdoor heat exchanger. The indoor heat exchanger is connected to the outdoor heat exchanger, and the outdoor heat exchanger is connected to the liquid separator.

5. The thermal management integrated module assembly according to claim 4, characterized in that: When the thermal management system is operating in winter heating mode, the refrigerant flow direction is: compressor - refrigerant four-way valve - indoor heat exchanger - outdoor heat exchanger - refrigerant four-way valve - gas-liquid separator - compressor.

6. The thermal management integrated module assembly according to claim 5, characterized in that: When the thermal management system is operating in summer cooling mode, the refrigerant flow direction is: compressor - refrigerant four-way valve - outdoor heat exchanger - indoor heat exchanger - gas-liquid separator - compressor.

7. The thermal management integrated module assembly according to claim 5, characterized in that: A first heater is installed between the indoor heat exchanger and the blower.

8. The thermal management integrated module assembly according to any one of claims 1 to 7, characterized in that: A second heater is provided in the battery cooling circuit. The battery cooler is located between the battery water pump and the second heater and is connected to the battery water pump and the second heater. The three-way water valve is located between the battery water pump and the second heater and is connected to the power battery pack, the battery water pump and the second heater.

9. A thermal management system, characterized in that: Includes the thermal management integrated module assembly as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: Includes the thermal management system as described in claim 9.

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