A thermal management system using r290 refrigerant and vehicle

Abstract

The utility model discloses a kind of heat management system and vehicle of application R290 refrigerant, including agent side integrated module and cooling liquid side integrated module;Agent side integrated module includes series compressor, plate condenser, electronic expansion valve, plate evaporator and gas-liquid separator;Compressor is compressed into high-temperature high-pressure superheated gaseous after refrigerant work, enters plate condenser and is condensed into liquid state by heat release, and then flows through electronic expansion valve throttling and is decompressed into low-temperature low-pressure state, and then evaporates and absorbs heat into gaseous state by plate evaporator, finally flows into gas-liquid separator for avoiding incomplete evaporation to cause compressor liquid strike damage compressor, complete a refrigerant loop circulation;Cooling liquid side integrated module includes at least one water pump and at least one multi-way valve.The heat management system is designed as two modules respectively with refrigerant and cooling liquid circuit in R290 refrigerant heat management system, aims to solve R290 refrigerant heat management system component dispersed arrangement, many pipeline quantity, assembly complex and have refrigerant leakage risk and other problems by integrated design.

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 vehicle using R290 refrigerant. Background Technology

[0002] As the thermal management systems of new energy vehicles become increasingly intelligent and integrated, the design requirements for these systems are becoming more stringent. At the same time, the application of the new environmentally friendly refrigerant R290 further increases the complexity of the thermal management system.

[0003] The numerous components in the existing automotive thermal management system are scattered and the complex piping makes the overall vehicle layout very difficult, occupies a large installation space, and leaks during the refilling of R290 refrigerant can cause flammability risks. Utility Model Content

[0004] The purpose of this utility model is to provide a thermal management system and vehicle that uses R290 refrigerant. The refrigerant and coolant circuits in the R290 refrigerant thermal management system are designed as two separate modules. The aim is to solve the problems of dispersed component layout, large number of pipelines, complex assembly, and risk of refrigerant leakage in the R290 refrigerant thermal management system through integrated design.

[0005] To solve the above-mentioned technical problems, this utility model provides a thermal management system using R290 refrigerant, including a refrigerant-side integrated module and a coolant-side integrated module; The refrigerant-side integrated module includes a compressor, a plate condenser, an electronic expansion valve, a plate evaporator, and a gas-liquid separator connected in series. The compressor compresses the refrigerant into a high-temperature, high-pressure superheated gaseous state, which then enters the plate condenser to release heat and condense into a liquid state. The liquid then flows through the electronic expansion valve to reduce the pressure to a low-temperature, low-pressure state, and then evaporates and absorbs heat in the plate evaporator to become gaseous. Finally, the liquid flows into the gas-liquid separator to prevent incomplete evaporation from causing liquid slugging and damaging the compressor, thus completing a refrigerant loop cycle. The coolant-side integrated module includes at least one water pump and at least one multi-way valve; wherein the water pump provides power for the circulation of coolant, and the multi-way valve switches the flow direction of coolant to achieve different operating modes.

[0006] Preferably, the agent-side integrated module further includes an agent-side flow channel plate, the components of the agent-side integrated module are integrated on the agent-side flow channel plate, and the refrigerant can flow in the flow channel inside the agent-side flow channel plate.

[0007] Preferably, a first high-pressure P / T sensor is provided between the compressor and the plate condenser; a second high-pressure P / T sensor is provided between the plate condenser and the electronic expansion valve; a first low-pressure P / T sensor is provided between the electronic expansion valve and the plate evaporator; and a second low-pressure P / T sensor is provided between the plate evaporator and the gas-liquid separator; these are used to measure the temperature and pressure parameters of the refrigerant during operation.

[0008] Preferably, the coolant-side integrated module further includes a liquid-side flow channel plate, the components in the coolant-side integrated module are integrated on the liquid-side flow channel plate, and the coolant can flow in the flow channel inside the liquid-side flow channel plate.

[0009] Preferably, the multiple water pumps in the coolant-side integrated module include water pump one, water pump two, and water pump three; the multiple multi-way valves include a seven-way valve, a five-way valve one, and a five-way valve two.

[0010] Preferably, the liquid-side flow channel plate is provided with a liquid-side plate evaporator inlet and a liquid-side plate evaporator outlet, which are respectively connected to the agent-side plate evaporator outlet and agent-side plate evaporator inlet in the agent-side integrated module through pipelines; energy exchange between coolant and refrigerant is realized through a water pump and a multi-way valve.

[0011] Preferably, the liquid-side flow channel plate is provided with a liquid-side plate condenser inlet and a liquid-side plate condenser outlet, which are respectively connected to the agent-side plate condenser outlet and agent-side plate condenser inlet in the agent-side integrated module through pipelines; energy exchange between coolant and refrigerant is realized through a water pump and a multi-way valve.

[0012] Preferably, the thermal management system further includes a battery, a motor, an HVAC unit, a WPTC heater, a kettle, and a radiator assembly; the radiator assembly is connected to the radiator inlet and outlet via pipes to dissipate heat from the coolant circuit in a specific mode; the WPTC heater is connected to port 3 of the five-way valve and the heating core of the HVAC unit via pipes to heat the coolant in the heating circuit in a specific mode.

[0013] Preferably, the warm air core in the HVAC air conditioning unit is connected to the warm air core water inlet and the warm air core water outlet via pipes, respectively, for heating the air in the passenger compartment in a specific mode; the cold air core in the HVAC air conditioning unit is connected to the cold air core water inlet and the cold air core water outlet via pipes, respectively, for cooling the air in the passenger compartment in a specific mode. The battery is connected to the battery water inlet and the battery water outlet via pipes, respectively, for heating or cooling the battery in a specific mode; the motor is connected to the motor water inlet and the motor water outlet via pipes, for heating or cooling the motor in a specific mode.

[0014] This utility model also provides a vehicle that adopts the above-mentioned thermal management system.

[0015] Compared with the prior art, the beneficial effects of this utility model are: The thermal management system of this utility model designs the refrigerant and coolant circuits in the R290 refrigerant thermal management system as two separate modules. It aims to solve the problems of dispersed component layout, large number of pipelines, complex assembly, and risk of refrigerant leakage in the R290 refrigerant thermal management system through integrated design. Attached Figure Description

[0016] Figure 1 This utility model provides a diagram of a thermal management system using R290 refrigerant; Figure 2 This is a first-view structural schematic diagram of the agent-side integrated module provided by this utility model; Figure 3 This is a schematic diagram of the agent-side integrated module provided by this utility model from a second perspective. Figure 4 This is a first-view structural schematic diagram of the coolant-side integrated module structure provided by this utility model; Figure 5 This is a second-view structural schematic diagram of the coolant-side integrated module structure provided by this utility model.

[0017] In the diagram: 101, Compressor; 102, Plate condenser; 103, Electronic expansion valve; 104, Plate evaporator; 105, Gas-liquid separator; 106, First high-pressure P / T sensor; 107, Second high-pressure P / T sensor; 108, First low-pressure P / T sensor; 109, Second low-pressure P / T sensor; 110, Base; 111, Agent-side flow channel plate; 112, Agent-side plate evaporator water outlet; 113, Agent-side plate evaporator water inlet; 114, Agent-side plate condenser water inlet; 115, Agent-side plate condenser water outlet; 201, Seven-way valve; 202, Five-way valve one; 203, Five-way valve two; 301, Water pump one; 302, Water pump two; 303, Water pump three; 401 402. Battery; 501. Motor; 602. HVAC unit; 703. WPTC heater; 804. Kettle; 905. Radiator assembly; 906. Liquid-side flow channel plate; 907. Liquid-side plate evaporator inlet; 908. Liquid-side plate evaporator outlet; 909. Radiator inlet; 910. Liquid-side plate condenser inlet; 911. Radiator outlet; 912. Heater core inlet; 913. Heater core outlet; 914. Motor outlet. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances. Example

[0021] This utility model provides a thermal management system using R290 refrigerant. Please refer to [link / reference]. Figure 1 The system includes a refrigerant-side integrated module and a coolant-side integrated module. The refrigerant-side integrated module includes a compressor 101, a plate condenser 102, an electronic expansion valve 103, a plate evaporator 104, and a gas-liquid separator 105 connected in series. The compressor 101 compresses the refrigerant into a high-temperature, high-pressure superheated gaseous state, which then enters the plate condenser 102 to release heat and condense into a liquid state. The liquid then flows through the electronic expansion valve 103 to reduce the pressure to a low-temperature, low-pressure state, and then evaporates and absorbs heat in the plate evaporator 104 to become gaseous. Finally, the liquid flows into the gas-liquid separator 105 to prevent incomplete evaporation from causing liquid slugging and damaging the compressor, thus completing one refrigerant loop cycle. The coolant-side integrated module includes at least one water pump and at least one multi-way valve. The water pump provides the power for the circulation of the coolant, while the multi-way valve switches the flow direction of the coolant to achieve different operating modes.

[0022] For details, please refer to the following: Figure 2 and Figure 3 The agent-side integrated module also includes an agent-side flow channel plate 111, on which the components of the agent-side integrated module are integrated, and the refrigerant can flow in the flow channel inside the agent-side flow channel plate 111.

[0023] In this embodiment, the welding method of the agent-side flow channel plate 111 can be laser welding or friction stir welding.

[0024] Furthermore, a first high-pressure P / T sensor 106 is provided between the compressor 101 and the plate condenser 102; a second high-pressure P / T sensor 107 is provided between the plate condenser 102 and the electronic expansion valve 103; a first low-pressure P / T sensor 108 is provided between the electronic expansion valve 103 and the plate evaporator 104; and a second low-pressure P / T sensor 109 is provided between the plate evaporator 104 and the gas-liquid separator 105; these are used to measure the temperature and pressure parameters of the refrigerant during operation.

[0025] In this embodiment, the compressor is placed on a pre-designed base 110 due to its weight and size to enhance structural stability.

[0026] For details, please refer to the following: Figure 4 and Figure 5 The coolant-side integrated module also includes a liquid-side flow channel plate 900, on which the components of the coolant-side integrated module are integrated, and the coolant can flow in the flow channel inside the liquid-side flow channel plate 900.

[0027] Furthermore, the multiple water pumps in the coolant-side integrated module include water pump one 301, water pump two 302 and water pump three 303; the multiple multi-way valves include seven-way valve 201, five-way valve one 202 and five-way valve two 203.

[0028] In this embodiment, multiple multi-way valves can also be integrated into a five-way valve and a ten-way valve, which can also switch the flow direction of coolant to achieve different working modes.

[0029] Furthermore, the liquid-side flow channel plate 900 is provided with a liquid-side plate evaporator inlet 901 and a liquid-side plate evaporator outlet 902, which are respectively connected to the agent-side plate evaporator outlet 112 and agent-side plate evaporator inlet 113 in the agent-side integrated module through pipelines; the energy exchange between the coolant and the refrigerant is realized through a water pump and a multi-way valve.

[0030] Furthermore, the liquid-side flow channel plate 900 is provided with a liquid-side plate condenser water inlet 904 and a liquid-side plate condenser water outlet 905, which are respectively connected to the agent-side plate condenser water outlet 115 and agent-side plate condenser water inlet 114 in the agent-side integrated module through pipelines; the energy exchange between the coolant and the refrigerant is realized through a water pump and a multi-way valve.

[0031] Furthermore, the thermal management system also includes a battery 401, a motor 402, an HVAC air conditioning unit 501, a WPTC heater 601, a kettle 701, and a radiator assembly 801; the radiator assembly 801 is connected to the radiator inlet 903 and the radiator outlet 906 via pipes, and is used to dissipate heat from the coolant circuit in a specific mode; the WPTC heater 601 is connected to port 3 of the five-way valve 202 and the heating core of the HVAC air conditioning unit 501 via pipes, and is used to heat the coolant in the heating circuit in a specific mode.

[0032] The heating element in the HVAC unit 501 is connected to the heating element water inlet 907 and the heating element water outlet 908 via pipes, and is used to heat the air in the passenger compartment in a specific mode. The cooling element in the HVAC unit 501 is connected to the cooling element water inlet 911 and the cooling element water outlet 912 via pipes, and is used to cool the air in the passenger compartment in a specific mode. The battery 401 is connected to the battery water inlet 909 and the battery water outlet 910 via pipes, and is used to heat or cool the battery 401 in a specific mode. The motor 402 is connected to the motor water inlet 913 and the motor water outlet 914 via pipes, and is used to heat or cool the motor in a specific mode.

[0033] The WPTC heater 601 is an electrothermal conversion system used for heating in new energy vehicles. It mainly provides temperature regulation for the vehicle interior and battery by heating the coolant.

[0034] This utility model also provides a vehicle that adopts the above-mentioned thermal management system, and in actual use of the vehicle, the refrigerant can be either R290 or R134a.

[0035] The thermal management system of this utility model designs the refrigerant and coolant circuits in the R290 refrigerant thermal management system as two separate modules. It aims to solve the problems of dispersed component layout, large number of pipelines, complex assembly, and risk of refrigerant leakage in the R290 refrigerant thermal management system through integrated design.

[0036] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A thermal management system using R290 refrigerant, characterized in that, Includes a liquid-side integrated module and a coolant-side integrated module; The refrigerant-side integrated module includes a compressor (101), a plate condenser (102), an electronic expansion valve (103), a plate evaporator (104), and a gas-liquid separator (105) connected in series. The compressor (101) compresses the refrigerant into a high-temperature, high-pressure superheated gaseous state and then enters the plate condenser (102) to release heat and condense into a liquid state. Then, it flows through the electronic expansion valve (103) to reduce the pressure to a low-temperature, low-pressure state and then evaporates and absorbs heat in the plate evaporator (104) to become gaseous. Finally, it flows into the gas-liquid separator (105) to avoid incomplete evaporation that could cause liquid slugging and damage to the compressor, thus completing a refrigerant loop cycle. The coolant-side integrated module includes at least one water pump and at least one multi-way valve; wherein the water pump provides power for the circulation of coolant, and the multi-way valve switches the flow direction of coolant to achieve different operating modes.

2. A thermal management system using R290 refrigerant as described in claim 1, characterized in that, The agent-side integrated module also includes an agent-side flow channel plate (111), on which the components of the agent-side integrated module are integrated, and the refrigerant can flow in the flow channel inside the agent-side flow channel plate (111).

3. A thermal management system using R290 refrigerant as described in claim 2, characterized in that, A first high-pressure P / T sensor (106) is provided between the compressor (101) and the plate condenser (102); a second high-pressure P / T sensor (107) is provided between the plate condenser (102) and the electronic expansion valve (103); a first low-pressure P / T sensor (108) is provided between the electronic expansion valve (103) and the plate evaporator (104); and a second low-pressure P / T sensor (109) is provided between the plate evaporator (104) and the gas-liquid separator (105); these are used to measure the temperature and pressure parameters of the refrigerant during operation.

4. A thermal management system using R290 refrigerant as described in claim 1, characterized in that, The coolant-side integrated module also includes a liquid-side flow channel plate (900), on which the components of the coolant-side integrated module are integrated, and the coolant can flow in the flow channel inside the liquid-side flow channel plate (900).

5. A thermal management system using R290 refrigerant as described in claim 4, characterized in that, The coolant-side integrated module includes multiple water pumps, including water pump one (301), water pump two (302) and water pump three (303); and multiple multi-way valves, including seven-way valve (201), five-way valve one (202) and five-way valve two (203).

6. A thermal management system using R290 refrigerant as described in claim 5, characterized in that, The liquid-side flow channel plate (900) is provided with a liquid-side plate evaporator inlet (901) and a liquid-side plate evaporator outlet (902), which are respectively connected to the agent-side plate evaporator outlet (112) and agent-side plate evaporator inlet (113) in the agent-side integrated module through pipelines; the energy exchange between the coolant and the refrigerant is realized through a water pump and a multi-way valve.

7. A thermal management system using R290 refrigerant as described in claim 5, characterized in that, The liquid-side flow channel plate (900) is provided with a liquid-side plate condenser inlet (904) and a liquid-side plate condenser outlet (905), which are respectively connected to the agent-side plate condenser outlet (115) and agent-side plate condenser inlet (114) in the agent-side integrated module through pipelines; the energy exchange between the coolant and the refrigerant is realized through a water pump and a multi-way valve.

8. A thermal management system using R290 refrigerant as described in claim 5, characterized in that, It also includes a battery (401), a motor (402), an HVAC air conditioning unit (501), a WPTC heater (601), a kettle (701), and a radiator assembly (801); the radiator assembly (801) is connected to the radiator inlet (903) and the radiator outlet (906) respectively via pipes, and is used to dissipate heat from the coolant circuit in a specific mode; the WPTC heater (601) is connected to the three ports of the five-way valve (202) and the warm air core of the HVAC air conditioning unit (501) respectively via pipes, and is used to heat the coolant in the warm air circuit in a specific mode.

9. A thermal management system using R290 refrigerant as described in claim 8, characterized in that, The warm air core in the HVAC air conditioning unit (501) is connected to the warm air core water inlet (907) and the warm air core water outlet (908) respectively through pipes, and is used to heat the air in the passenger compartment in a specific mode. The cold air core in the HVAC air conditioning unit (501) is connected to the cold air core water inlet (911) and the cold air core water outlet (912) respectively through pipes, and is used to cool the air in the passenger compartment in a specific mode. The battery (401) is connected to the battery water inlet (909) and the battery water outlet (910) respectively through pipes, and is used to heat or cool the battery (401) in a specific mode; the motor (402) is connected to the motor water inlet (913) and the motor water outlet (914) respectively through pipes, and is used to heat or cool the motor in a specific mode.

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

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