Thermal management system and vehicle

Abstract

The utility model discloses a heat management system and a vehicle. The heat management system comprises an air conditioner loop, a heat exchanger and a controller, the adjusting unit comprises a refrigerating module and a heating module, the adjusting unit comprises a two-position eight-way valve, and the two-position eight-way valve comprises a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port and an eighth valve port; when the adjusting unit is located in the refrigeration module, the first valve port is communicated with the eighth valve port, and the third valve port is communicated with the sixth valve port; when the adjusting unit is in the heating module, the first valve port is communicated with the fifth valve port, the fourth valve port is communicated with the sixth valve port, the seventh valve port is communicated with the third valve port, and the eighth valve port is communicated with the second valve port. The heat management system is provided with the two-position eight-way valve for switching the refrigerating module and the heating module, so that the heat management requirement of an air conditioner loop is met, the energy efficiency ratio of the system is improved, meanwhile, the structure of the heat management system is simplified, and the integration degree of the heat management system is improved.

Description

Technical Field

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

[0002] Currently, the integration of thermal management system architecture and thermal management components in the industry is inseparable. The industry's heat pump thermal management systems have not yet fully resolved the issue of short operating time at low temperatures, and the integration level of thermal management modules is low, with the water side and refrigerant side mostly separate. Utility Model Content

[0003] The purpose of this invention is to provide a thermal management system and a vehicle to solve the problems in the prior art.

[0004] In a first aspect, this utility model provides a thermal management system, comprising:

[0005] An air conditioning circuit, used to regulate the temperature of the passenger compartment;

[0006] The regulating unit includes a refrigeration module and a heating module. The regulating unit includes a two-position eight-way valve, which includes a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port.

[0007] in:

[0008] When the regulating unit is in the refrigeration module, the first valve port is connected to the eighth valve port, the third valve port is connected to the sixth valve port, and the refrigeration module is connected to the air conditioning circuit;

[0009] When the regulating unit is in the heating module, the first valve port is connected to the fifth valve port, the fourth valve port is connected to the sixth valve port, the seventh valve port is connected to the third valve port, the eighth valve port is connected to the second valve port, and the heating module is connected to the air conditioning circuit.

[0010] In the thermal management system described above, preferably, when the regulating unit is in the refrigeration module, the air conditioning circuit includes a compressor, a first condenser, a heat exchanger, a four-way valve, a first three-way valve, a first evaporator, a second evaporator, and a gas-liquid separator, wherein:

[0011] The compressor's outlet is connected to the inlet of the first condenser; the first condenser's outlet is connected to the first valve port; the second valve port is connected to the inlet of the heat exchanger; the heat exchanger's outlet is connected to the third valve port; the sixth valve port is connected to the first port of the four-way valve; the second port of the four-way valve is connected to the inlet of the first evaporator; the first evaporator's outlet is connected to the inlet of the gas-liquid separator; the fourth port of the four-way valve is connected to the first port of the first three-way valve; the second port of the first three-way valve is connected to the inlet of the second evaporator; the second evaporator's outlet is connected to the inlet of the gas-liquid separator; and the gas-liquid separator's outlet is connected to the compressor's inlet.

[0012] In the thermal management system described above, preferably, a first electronic expansion valve is provided on the connection pipeline between the four-way valve and the first evaporator.

[0013] In the thermal management system described above, preferably, a second electronic expansion valve is provided on the connecting pipeline between the four-way valve and the first three-way valve.

[0014] In the thermal management system described above, preferably, a shut-off valve is provided on the connecting pipeline between the first three-way valve and the second evaporator.

[0015] In the thermal management system described above, preferably, when the regulating unit is in the heating module, the air conditioning circuit includes a compressor, a first condenser, a heat exchanger, a second condenser, a four-way valve, a first three-way valve, a cooler, and a gas-liquid separator;

[0016] The compressor's outlet is connected to the inlet of the first condenser; the first condenser's outlet is connected to the first valve port; the fifth valve port is connected to the water-side inlet of the second condenser; the second condenser's water-side outlet is connected to the fourth valve port; the sixth valve port is connected to the first port of the four-way valve; the four-way valve's third port is connected to the first port of the first three-way valve; the first three-way valve's third port is connected to the seventh valve port; the third valve port is connected to the inlet of the heat exchanger; the heat exchanger's outlet is connected to the eighth valve port; the second valve port is connected to the inlet of the gas-liquid separator; the four-way valve's fourth port is connected to the water-side inlet of the cooler; the cooler's water-side outlet is connected to the inlet of the gas-liquid separator; and the gas-liquid separator's outlet is connected to the compressor's inlet.

[0017] In the thermal management system described above, preferably, a third electronic expansion valve is provided on the connection pipe between the four-way valve and the water side of the cooler.

[0018] In a thermal management system as described above, preferably, the thermal management system further includes a battery circuit, and the air conditioning circuit can heat or keep the battery circuit warm.

[0019] In the thermal management system described above, preferably, the battery circuit includes a power battery, a second three-way valve, a cooler, a second condenser, and an electric water pump, wherein:

[0020] The outlet end of the cooler on the refrigerant side is connected to the inlet end of the first port of the second three-way valve. The outlet end of the first port of the second three-way valve is connected to the inlet end of the power battery. The outlet end of the power battery is connected to the inlet end of the second condenser on the refrigerant side. The outlet end of the second condenser on the refrigerant side is connected to the inlet end of the electronic water pump. The outlet end of the electronic water pump is connected to the inlet end of the second port of the second three-way valve. The outlet end of the second port of the second three-way valve is connected to the inlet end of the cooler on the refrigerant side.

[0021] Secondly, this utility model provides a vehicle including the aforementioned thermal management system.

[0022] Compared with the prior art, the thermal management system of this utility model is equipped with a two-position eight-way valve to switch between the refrigeration module and the heating module to adapt to the thermal management requirements of the air conditioning circuit, thereby improving the energy efficiency ratio of the system. At the same time, it simplifies the structure of the thermal management system, improves the integration level of the thermal management system, reduces the space occupied, facilitates the layout, and effectively reduces costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the adjustment unit provided in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the thermal management system structure provided in the refrigeration module according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the thermal management system structure when in the heating module according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100-Air conditioning circuit, 200-Regulating unit, 210-Refrigeration module, 220-Heating module, 230-Two-position eight-way valve, 231-First valve port, 232-Second valve port, 233-Third valve port, 234-Fourth valve port, 235-Fifth valve port, 236-Sixth valve port, 237-Seventh valve port, 238-Eighth valve port, 300-Battery circuit;

[0028] 1-Compressor, 2-First condenser, 3-Heat exchanger, 4-Four-way valve, 5-First three-way valve, 6-First evaporator, 7-Second evaporator, 8-Gas-liquid separator, 9-First electronic expansion valve, 10-Second electronic expansion valve, 11-Stop valve, 12-Second condenser, 121-Water side of the second condenser, 122-Refrigerant side of the second condenser, 13-Cooler, 131-Water side of the cooler, 132-Refrigerant side of the cooler, 14-Third electronic expansion valve, 15-Power battery, 16-Second three-way valve, 17-Electronic water pump. Detailed Implementation

[0029] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] Firstly, referring to Figures 1 to 3 As shown, this utility model provides a thermal management system, including an air conditioning circuit 100 and a regulating unit 200, wherein:

[0031] The air conditioning circuit 100 is used to regulate the temperature of the passenger compartment so that the passenger compartment has a suitable temperature.

[0032] Reference Figure 1 As shown, the regulating unit 200 includes a refrigeration module 210 and a heating module 220. The regulating unit 200 includes a two-position eight-way valve 230, which includes a first valve port 231 (A port), a second valve port 232 (E port), a third valve port 233 (G port), a fourth valve port 234 (C port), a fifth valve port 235 (B port), a sixth valve port 236 (F port), a seventh valve port 237 (H port), and an eighth valve port 238 (D port).

[0033] When the air conditioning circuit 100 needs to cool, adjust the two-position eight-way valve 230 so that the first valve port 231 and the eighth valve port 238 are connected, and the third valve port 233 and the sixth valve port 236 are connected. Switch the adjustment unit 200 to the refrigeration module 210, and then connect the air conditioning circuit 100 to the corresponding valve port to achieve the desired cooling effect.

[0034] When the air conditioning circuit 100 needs heating, adjust the two-position eight-way valve 230 so that the first valve port 231 is connected to the fifth valve port 235, the fourth valve port 234 is connected to the sixth valve port 236, the seventh valve port 237 is connected to the third valve port 233, and the eighth valve port 238 is connected to the second valve port 232. Switch the adjustment unit 200 to the heating module 220, and then connect the air conditioning circuit 100 to the corresponding valve ports to achieve the desired result.

[0035] Compared to existing thermal management methods, this invention achieves rapid switching between the cooling module 210 and the heating module 220 through the adjustment unit 200. The switching method between the cooling module 210 and the heating module 220 is simple and easy to operate. Furthermore, it eliminates the need for numerous control valves in the system to switch between cooling and heating modes, reducing the number of system components, simplifying the system structure, improving the integration level of the thermal management system, lowering manufacturing costs, and saving layout space.

[0036] Reference Figure 2 As shown, when the regulating unit 200 switches to the refrigeration module 210, the air conditioning circuit 100 includes a compressor 1, a first condenser 2, a heat exchanger 3, a four-way valve 4, a first three-way valve 5, a first evaporator 6, a second evaporator 7, and a gas-liquid separator 8, wherein:

[0037] The outlet end of compressor 1 is connected to the inlet end of the first condenser 2. The outlet end of the first condenser 2 is connected to the first valve port 231. The second valve port 232 is connected to the inlet end of heat exchanger 3. The outlet end of heat exchanger 3 is connected to the third valve port 233. The sixth valve port 236 is connected to the first port of four-way valve 4. The second port of four-way valve 4 is connected to the inlet end of the first evaporator 6. The outlet end of the first evaporator 6 is connected to the inlet end of gas-liquid separator 8. The third port of four-way valve 4 is connected to the first port of the first three-way valve 5. The second port of the first three-way valve 5 is connected to the inlet end of the second evaporator 7. The outlet end of the second evaporator 7 is connected to the inlet end of gas-liquid separator 8. The outlet end of gas-liquid separator 8 is connected to the inlet end of compressor 1.

[0038] In the embodiments provided in this application, the first evaporator 6 is the front evaporator and the second evaporator 7 is the rear evaporator. When the passenger compartment needs to be cooled, the coolant flows through the first condenser 2 and the heat exchanger 3 after being acted upon by the compressor 1 to form a low-temperature coolant. After flowing to the four-way valve 4, it splits into two paths and flows to the front evaporator and the rear evaporator respectively for heat exchange to achieve cooling of the passenger compartment. The coolant after heat exchange flows back to the compressor 1 through the gas-liquid separator 8 for circulation.

[0039] In one feasible implementation, a first electronic expansion valve 9 is provided on the connecting pipe between the four-way valve 4 and the first evaporator 6; a second electronic expansion valve 10 is provided on the connecting pipe between the four-way valve 4 and the first three-way valve 5; and a shut-off valve 11 is provided on the connecting pipe between the first three-way valve 5 and the second evaporator 7.

[0040] When cooling the passenger compartment, the flow rate of the coolant can be precisely controlled by the first electronic expansion valve 9 according to the coolant demand of the front evaporator, so that the coolant flow rate meets the cooling requirements of the front evaporator and prevents the coolant from being too much or too little, which would affect the cooling effect of the front evaporator.

[0041] Similarly, in order to meet the cooling requirements of the rear evaporator, the flow rate of the coolant flowing through the rear evaporator also needs to be precisely controlled. Therefore, the second electronic expansion valve 10 is used to control the flow rate of the coolant flowing to the rear evaporator, so that the temperature of the passenger compartment can be precisely controlled under the combined action of the first electronic expansion valve 9 and the second electronic expansion valve 10.

[0042] The shut-off valve 11 is designed to further regulate the flow rate of coolant to the rear evaporator in order to meet the cooling requirements of the rear evaporator.

[0043] Reference Figure 3 As shown, when the regulating unit 200 is in the heating module 220, the air conditioning circuit 100 includes a compressor 1, a first condenser 2, a heat exchanger 3, a second condenser 12, a four-way valve 4, a first three-way valve 5, a cooler 13, and a gas-liquid separator 8, wherein;

[0044] The outlet end of compressor 1 is connected to the inlet end of the first condenser 2. The outlet end of the first condenser 2 is connected to the first valve port 231. The fifth valve port 235 is connected to the inlet end of the water side 121 of the second condenser. The outlet end of the water side 121 of the second condenser is connected to the fourth valve port 234. The sixth valve port 236 is connected to the first port of the four-way valve 4. The third port of the four-way valve 4 is connected to the first port of the first three-way valve 5. The third port of the first three-way valve 5 is connected to the seventh valve port 237. The third valve port 233 is connected to the inlet end of the heat exchanger 3. The outlet end of the heat exchanger 3 is connected to the eighth valve port 238. The second valve port 232 is connected to the inlet end of the gas-liquid separator 8. The fourth port of the four-way valve 4 is connected to the inlet end of the water side 131 of the cooler. The outlet end of the water side 131 of the cooler is connected to the inlet end of the gas-liquid separator 8. The outlet end of the gas-liquid separator 8 is connected to the inlet end of compressor 1.

[0045] In the embodiments provided in this application, the second condenser 12 is a liquid-cooled condenser. After being acted upon by the compressor 1, the coolant flows sequentially to the first condenser 2 and the second condenser 12. Under the action of the second condenser 12, the coolant can be fully liquefied. Part of the coolant flowing out of the second condenser 12 flows to the heat exchanger 3 for heat exchange, and another part flows to the water side 131 of the cooler for heat exchange. During heat exchange, more heat can be absorbed from the outside, thereby improving the heating effect.

[0046] In order to control the flow rate of coolant to cooler 13, a third electronic expansion valve 14 is provided on the connection pipe between the four-way valve 4 and the water side 131 of the cooler. The third electronic expansion valve 14 can control the flow rate of coolant flowing into cooler 13 according to heating demand. At the same time, the second electronic expansion valve 10 can adjust the flow rate of coolant to heat exchanger 3. Under the combined action of the second electronic expansion valve 10 and the third electronic expansion valve 14, the flow rate of coolant to different components is controlled to meet the heating demand of the system.

[0047] In one feasible implementation, the thermal management system further includes a battery circuit 300, which can heat or keep warm the battery circuit 300 when the regulating unit 200 switches to the heating module 220.

[0048] Specifically, the battery circuit 300 includes a power battery 15, a second three-way valve 16, a cooler 13, a second condenser 12, and an electric water pump 17, wherein:

[0049] The outlet end of the refrigerant side 132 of the cooler is connected to the inlet end of the first port of the second three-way valve 16. The outlet end of the first port of the second three-way valve 16 is connected to the inlet end of the power battery 15. The outlet end of the power battery 15 is connected to the inlet end of the refrigerant side 122 of the second condenser. The outlet end of the refrigerant side 122 of the second condenser is connected to the inlet end of the electric water pump 17. The outlet end of the electric water pump 17 is connected to the inlet end of the second port of the second three-way valve 16. The outlet end of the second port of the second three-way valve 16 is connected to the inlet end of the refrigerant side 132 of the cooler.

[0050] When the regulating unit 200 switches to the heating module 220, the coolant in the air conditioning circuit 100 flows through the second condenser 12, where the coolant on the water side 121 of the second condenser exchanges heat with the coolant on the refrigerant side of the second condenser 12, thereby transferring heat to the battery circuit 300. When the coolant in the air conditioning circuit 100 flows through the cooler 13, the coolant on the water side 131 of the cooler exchanges heat with the coolant on the refrigerant side 132 of the cooler, further transferring heat to the battery circuit 300. The battery circuit 300 receives the heat transferred from the air conditioning circuit 100, causing the power battery 15 to be heated or kept warm.

[0051] Secondly, this utility model provides a vehicle including the aforementioned thermal management system. Because the thermal management system of this application has a high degree of integration, it is easy to place in a suitable space within the vehicle, and it has a significant effect on the waste heat recovery of high-power water pumps, which is beneficial for improving driving range.

[0052] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A thermal management system, characterized in that, include: An air conditioning circuit, used to regulate the temperature of the passenger compartment; The regulating unit includes a refrigeration module and a heating module. The regulating unit includes a two-position eight-way valve, which includes a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port. in: When the regulating unit is in the refrigeration module, the first valve port is connected to the eighth valve port, the third valve port is connected to the sixth valve port, and the refrigeration module is connected to the air conditioning circuit; When the regulating unit is in the heating module, the first valve port is connected to the fifth valve port, the fourth valve port is connected to the sixth valve port, the seventh valve port is connected to the third valve port, the eighth valve port is connected to the second valve port, and the heating module is connected to the air conditioning circuit.

2. The thermal management system according to claim 1, characterized in that, When the regulating unit is in the refrigeration module mode, the air conditioning circuit includes a compressor, a first condenser, a heat exchanger, a four-way valve, a first three-way valve, a first evaporator, a second evaporator, and a gas-liquid separator, wherein: The compressor's outlet is connected to the inlet of the first condenser; the first condenser's outlet is connected to the first valve port; the second valve port is connected to the inlet of the heat exchanger; the heat exchanger's outlet is connected to the third valve port; the sixth valve port is connected to the first port of the four-way valve; the second port of the four-way valve is connected to the inlet of the first evaporator; the first evaporator's outlet is connected to the inlet of the gas-liquid separator; the fourth port of the four-way valve is connected to the first port of the first three-way valve; the second port of the first three-way valve is connected to the inlet of the second evaporator; the second evaporator's outlet is connected to the inlet of the gas-liquid separator; and the gas-liquid separator's outlet is connected to the compressor's inlet.

3. The thermal management system according to claim 2, characterized in that, A first electronic expansion valve is provided on the connecting pipe between the four-way valve and the first evaporator.

4. The thermal management system according to claim 2, characterized in that, A second electronic expansion valve is provided on the connecting pipeline between the four-way valve and the first three-way valve.

5. The thermal management system according to claim 2, characterized in that, A shut-off valve is provided on the connecting pipe between the first three-way valve and the second evaporator.

6. The thermal management system according to claim 1, characterized in that, When the regulating unit is in the heating module, the air conditioning circuit includes a compressor, a first condenser, a heat exchanger, a second condenser, a four-way valve, a first three-way valve, a cooler, and a gas-liquid separator, wherein; The compressor's outlet is connected to the inlet of the first condenser; the first condenser's outlet is connected to the first valve port; the fifth valve port is connected to the water-side inlet of the second condenser; the second condenser's water-side outlet is connected to the fourth valve port; the sixth valve port is connected to the first port of the four-way valve; the four-way valve's third port is connected to the first port of the first three-way valve; the first three-way valve's third port is connected to the seventh valve port; the third valve port is connected to the inlet of the heat exchanger; the heat exchanger's outlet is connected to the eighth valve port; the second valve port is connected to the inlet of the gas-liquid separator; the four-way valve's fourth port is connected to the water-side inlet of the cooler; the cooler's water-side outlet is connected to the inlet of the gas-liquid separator; and the gas-liquid separator's outlet is connected to the compressor's inlet.

7. The thermal management system according to claim 6, characterized in that, A third electronic expansion valve is provided on the connecting pipe between the four-way valve and the water side of the cooler.

8. The thermal management system according to claim 6, characterized in that, The thermal management system also includes a battery circuit, and the air conditioning circuit can heat or keep the battery circuit warm.

9. The thermal management system according to claim 8, characterized in that, The battery circuit includes a power battery, a second three-way valve, a cooler, a second condenser, and an electric water pump, wherein: The outlet end of the cooler on the refrigerant side is connected to the inlet end of the first port of the second three-way valve. The outlet end of the first port of the second three-way valve is connected to the inlet end of the power battery. The outlet end of the power battery is connected to the inlet end of the second condenser on the refrigerant side. The outlet end of the second condenser on the refrigerant side is connected to the inlet end of the electronic water pump. The outlet end of the electronic water pump is connected to the inlet end of the second port of the second three-way valve. The outlet end of the second port of the second three-way valve is connected to the inlet end of the cooler on the refrigerant side.

10. A vehicle, characterized in that, The thermal management system includes any one of claims 1 to 9.

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