Thermal management integrated module, thermal management system and vehicle

Abstract

The utility model discloses a thermal management integration module, a thermal management system and a vehicle, and relates to the technical field of vehicles. The heat management integration module comprises a refrigerant heat exchange unit, an air-supplementing enthalpy-increasing heat exchange mechanism, a cooling liquid heat exchange unit and a heat exchanger. A plurality of refrigerant flow channels are arranged in the refrigerant heat exchange unit. The air supplementing and enthalpy increasing heat exchange mechanism is installed in the refrigerant heat exchange unit, communicates with the refrigerant flow channel and is used for conducting air supplementing and enthalpy increasing on the refrigerant flowing through the air supplementing and enthalpy increasing heat exchange mechanism; the cooling liquid heat exchange unit and the refrigerant heat exchange unit are oppositely arranged; the heat exchanger communicates with the refrigerant flow channel and the cooling liquid heat exchange unit and is used for enabling the refrigerant heat exchange unit and the cooling liquid heat exchange unit to conduct heat exchange. Therefore, on one hand, the integration degree is improved, installation simplification is facilitated, on the other hand, the discharge temperature of the compressor can be reduced, loss is reduced, and the service life of the compressor is prolonged.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and specifically relates to a thermal management integrated module, a thermal management system and a vehicle. Background Art

[0002] The thermal management system is an important component of the vehicle. As the functions of the vehicle become more and more diverse, the usage scenarios and components of the thermal management system increase, resulting in an increasing number of parts, pipes and flow channels in the thermal management system. In related technologies, the connection of the thermal management system is cumbersome and the layout is complex. Utility Model Content

[0003] The present application aims to provide a thermal management integrated module, a thermal management system and a vehicle. The thermal management system has a higher degree of integration and is convenient for simplifying installation. In addition, it can solve the problem in the related art that the exhaust temperature of the compressor is high, the energy consumption is large, and the life of the compressor is short.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application proposes a thermal management integrated module, comprising: a refrigerant heat exchange unit, the refrigerant heat exchange unit being provided with a plurality of refrigerant flow channels; an air-supplementing and enthalpy-increasing heat exchange mechanism, the air-supplementing and enthalpy-increasing heat exchange mechanism being installed in the refrigerant heat exchange unit and being connected to the refrigerant flow channels, for performing air-supplementing and enthalpy-increasing on the refrigerant flowing therethrough; a coolant heat exchange unit, the coolant heat exchange unit being arranged opposite to the refrigerant heat exchange unit; and a heat exchanger, the heat exchanger being connected to both the refrigerant flow channels and the coolant heat exchange unit, for enabling the refrigerant heat exchange unit to exchange heat with the coolant heat exchange unit.

[0006] Optionally, the refrigerant heat exchange unit includes a first plate body, the refrigerant flow channel is arranged on the first plate body, and the refrigerant flow channel includes a first refrigerant flow channel, a second refrigerant flow channel and a third refrigerant flow channel; one end of the first refrigerant flow channel is suitable for connecting with the in-vehicle condenser, and the other end is connected with the first high-pressure port of the air-supplementing enthalpy-increasing heat exchange mechanism; one end of the second refrigerant flow channel is connected with the second low-pressure port of the air-supplementing enthalpy-increasing heat exchange mechanism, and the other end is suitable for connecting with the compressor; one end of the third refrigerant flow channel is connected with the second high-pressure port of the air-supplementing enthalpy-increasing heat exchange mechanism, and the other end is connected with the heat exchanger.

[0007] Optionally, the refrigerant heat exchange unit also includes a valve assembly, which is arranged on the first plate body. The valve assembly includes a first solenoid valve, and a first channel and a second channel are provided in the first plate body. The first channel is connected to the second channel through the first solenoid valve to form the first refrigerant flow channel; the first channel is suitable for connecting with the in-vehicle condenser, and the second channel is connected to the first high-pressure port of the air-increasing enthalpy heat exchange mechanism.

[0008] Optionally, the third refrigerant flow channel includes a third channel and a fifth channel, the valve assembly also includes a second expansion valve, the third channel is connected to the second high-pressure port, the fifth channel is connected to the heat exchanger, and the third channel is connected to the fifth channel through the second expansion valve.

[0009] Optionally, the valve assembly further includes a third solenoid valve, and the third channel is connected to the fifth channel through the third solenoid valve.

[0010] Optionally, the valve assembly further includes a third expansion valve, and the first channel is connected to the second channel through the third expansion valve to form the first refrigerant flow channel.

[0011] Optionally, the first channel is connected to the heat exchanger through the first solenoid valve; the valve assembly further includes a fourth solenoid valve, and the first channel is connected to the heat exchanger through the fourth solenoid valve and the third expansion valve in sequence.

[0012] Optionally, the valve assembly further includes a first expansion valve; the first low-pressure port of the air-supplying enthalpy-increasing heat exchange mechanism is connected to the second high-pressure port through the first expansion valve.

[0013] Optionally, the first low-pressure port of the air-supplementing and enthalpy-increasing heat exchange mechanism is connected to the first refrigerant flow channel through the first expansion valve.

[0014] Optionally, the refrigerant flow channel also includes a fourth refrigerant flow channel; the third refrigerant flow channel is connected to the first end of the heat exchanger, the fourth refrigerant flow channel is connected to the second end of the heat exchanger, and the fourth refrigerant flow channel is also used to connect to the gas-liquid separator.

[0015] Optionally, the fourth refrigerant flow channel includes a sixth channel and a seventh channel, and the valve assembly further includes: a third one-way valve and a second solenoid valve; the sixth channel is connected to the second end, and the sixth channel is suitable for connecting to the external heat exchanger through the third one-way valve; the seventh channel is connected to the sixth channel through the second solenoid valve, and the seventh channel is used to connect to the gas-liquid separator.

[0016] Optionally, the refrigerant heat exchange unit includes a first plate body and a valve assembly, the valve assembly is arranged on the first plate body, the refrigerant flow channel also includes an eighth channel and a fourth refrigerant flow channel, the fourth refrigerant flow channel includes a sixth channel, and the valve assembly also includes a fourth solenoid valve; the first refrigerant flow channel includes a second channel, the eighth channel is connected to the second channel through the fourth solenoid valve, the eighth channel is used to connect one end of the external heat exchanger; the sixth channel is used to connect the other end of the external heat exchanger.

[0017] Optionally, the valve assembly further includes a fourth expansion valve, and the fourth expansion valve is used to connect the sixth channel and the evaporator.

[0018] Optionally, the refrigerant flow channel also includes a fourth refrigerant flow channel, a fifth refrigerant flow channel and a sixth refrigerant flow channel, the fourth refrigerant flow channel includes a sixth channel and a seventh channel, one end of the fifth refrigerant flow channel is connected to the sixth channel, and the other end is suitable for connecting to the first connection end of the battery pack heat exchanger, one end of the sixth refrigerant flow channel is suitable for connecting to the second connection end of the battery pack heat exchanger, and the other end is connected to the seventh channel.

[0019] Optionally, the fifth refrigerant flow channel includes a ninth channel and a thirteenth channel, and the valve assembly includes a first one-way valve and a fifth expansion valve; the ninth channel is connected to the sixth channel through the first one-way valve, and the thirteenth channel is connected to the ninth channel through the fifth expansion valve, and the thirteenth channel is suitable for connecting to the first connection end of the battery pack heat exchanger.

[0020] Optionally, the fifth refrigerant flow channel further includes a fifteenth channel, the valve assembly further includes a seventh solenoid valve, and the fifteenth channel is connected to the thirteenth channel through the seventh solenoid valve.

[0021] Optionally, the sixth refrigerant flow channel includes an eleventh channel and a twelfth channel, and the valve assembly includes a fifth solenoid valve and a sixth expansion valve; the eleventh channel is suitable for connecting to the second connection end of the battery pack heat exchanger, and the twelfth channel is connected to the eleventh channel through the sixth expansion valve; the seventh channel is connected to the twelfth channel through the fifth solenoid valve.

[0022] Optionally, the sixth refrigerant flow channel further includes a fourteenth channel, the valve assembly includes a sixth solenoid valve, the fourteenth channel is suitable for communicating with a compressor, and the fourteenth channel is communicated with the twelfth channel through the sixth solenoid valve.

[0023] Optionally, the valve assembly further includes a fourth one-way valve, and the fifteenth channel is further connected to the first refrigerant flow channel through the fourth one-way valve.

[0024] Optionally, the valve assembly further includes a second one-way valve, which is disposed between the seventh solenoid valve and the fifteenth channel, and is connected to the first refrigerant flow channel.

[0025] Optionally, the coolant heat exchange unit includes a second plate, a four-way valve and a water pump; the coolant heat exchange unit is provided with a sixteenth channel, a seventeenth channel and a third channel, the sixteenth channel is provided with a ninth interface, the ninth interface is used to communicate with the first end of the heat exchanger, the sixteenth channel is also communicated with one end of the four-way valve, and the output end of the water pump is communicated with the sixteenth channel; the second plate is arranged opposite to the first plate, and is provided with a tenth interface communicated with the seventeenth channel, the tenth interface is used to communicate with the second end of the heat exchanger, and the seventeenth channel is also communicated with the other end of the four-way valve; the eighteenth channel is communicated with the input end of the water pump, the second plate is provided with an eleventh interface communicated with the eighteenth channel, the eleventh interface is used to be connected to the water cooling pipe of the refrigerant heat exchange unit, and the four-way valve is provided with a twelfth interface, and the twelfth interface is used to communicate with one end of the motor radiator.

[0026] Optionally, the four-way valve is provided with a thirteenth interface, and the thirteenth interface is used to communicate with the other end of the motor radiator.

[0027] In a second aspect, an embodiment of the present application proposes a thermal management system, comprising a thermal management integrated module as described in any one of the above items.

[0028] In a third aspect, an embodiment of the present application proposes a vehicle, comprising a thermal management system as described above, or comprising a thermal management integrated module as described in any one of the above.

[0029] In an embodiment of the present application, a thermal management integrated module includes a refrigerant heat exchange unit, an air-supply and enthalpy-increasing heat exchange mechanism, a coolant heat exchange unit, and a heat exchanger. The refrigerant heat exchange unit is provided with a plurality of refrigerant flow channels. The air-supply and enthalpy-increasing heat exchange mechanism is installed in the refrigerant heat exchange unit and is connected to the refrigerant flow channels for supplying air and increasing enthalpy to the refrigerant flowing therethrough. The coolant heat exchange unit is arranged relative to the refrigerant heat exchange unit. The heat exchanger is connected to both the refrigerant flow channels and the coolant heat exchange unit for enabling the refrigerant heat exchange unit to exchange heat with the coolant heat exchange unit. In this way, on the one hand, by integrating the refrigerant heat exchange unit, the air-supply and enthalpy-increasing heat exchange mechanism, and the coolant heat exchange unit, the degree of integration is improved, which facilitates the simplification of installation and layout. On the other hand, the air-supply and enthalpy-increasing heat exchange mechanism can effectively reduce the discharge temperature of the compressor, reduce losses, thereby increasing the life of the compressor, and at the same time increase the heat exchange capacity of the thermal management integrated module, thereby improving the performance of the thermal management integrated module.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 is an exploded schematic diagram of a thermal management integrated module according to an embodiment of the present application;

[0033] Figure 2 is a structural schematic diagram of a refrigerant heat exchange unit according to an embodiment of the present application;

[0034] Figure 3 is a structural schematic diagram of a first plate according to an embodiment of the present application;

[0035] Figure 4 According to the embodiment of this application Figure 3 Cross-sectional view along line AA;

[0036] Figure 5 According to the embodiment of this application Figure 3 Cross-sectional view along the midline BB;

[0037] Figure 6 According to the embodiment of this application Figure 3 Cross-sectional view along the mid-CC line;

[0038] Figure 7 is a structural schematic diagram of a second substrate according to an embodiment of the present application;

[0039] Figure 8 is a structural schematic diagram of a coolant heat exchange unit according to an embodiment of the present application;

[0040] Figure 9 is a schematic structural diagram of the second plate body from one viewing angle according to an embodiment of the present application;

[0041] Figure 10 is a structural schematic diagram of the second plate body from another perspective according to an embodiment of the present application;

[0042] Figure 11 is a cross-sectional view of a second plate according to an embodiment of the present application;

[0043] Figure 12 Schematic diagram of the structure of a gas-supplementing and enthalpy-increasing heat exchange mechanism according to an embodiment of the present application;

[0044] Figure 13 is a schematic diagram of the system principle of the thermal management integrated module according to an embodiment of the present application;

[0045] Figure 14 is another system principle schematic diagram of a thermal management integrated module according to an embodiment of the present application;

[0046] Figure 15 1 is another system principle diagram of a thermal management integrated module according to an embodiment of the present application;

[0047] Figure 16 Schematic diagram of the refrigerant flow path of the thermal management integrated module in air conditioning and heating mode 1 according to an embodiment of the present application;

[0048] Figure 17 Schematic diagram of the refrigerant flow path of the thermal management integrated module in air conditioning and heating mode 2 according to an embodiment of the present application;

[0049] Figure 18 Schematic diagram of the refrigerant flow path of the thermal management integrated module in air conditioning cooling mode according to an embodiment of the present application;

[0050] Figure 19 Schematic diagram of the refrigerant flow path of the thermal management integrated module in battery cooling mode according to an embodiment of the present application;

[0051] Figure 20 This is a schematic diagram of the refrigerant flow path when the air conditioning cooling and battery cooling modes are both turned on in the thermal management integrated module according to an embodiment of the present application;

[0052] Figure 21 2 is a schematic diagram of the flow path of the refrigerant in the battery heating mode 1 of the thermal management integrated module according to an embodiment of the present application;

[0053] Figure 22 2 is a schematic diagram of the refrigerant flow path of the thermal management integrated module in battery heating mode 2 according to an embodiment of the present application;

[0054] Figure 23 This is a schematic diagram of the refrigerant flow path when the air conditioning heating mode 1 and the battery heating mode 1 are both turned on in the thermal management integrated module according to an embodiment of the present application;

[0055] Figure 24 This is a schematic diagram of the flow path of the refrigerant when the air conditioning heating mode 2 and the battery heating mode 2 are both turned on according to the thermal management integrated module of an embodiment of the present application.

[0056] Reference numerals:

[0057] 10: Refrigerant heat exchange unit;

[0058] 101: first channel; 102: second channel; 103: third channel; 104: second refrigerant flow channel; 105: fifth channel; 106: sixth channel; 107: seventh channel; 108: eighth channel; 109: ninth channel; 11: first plate; 111: eleventh channel; 112: twelfth channel; 113: thirteenth channel; 114: fourteenth channel; 115: fifteenth channel;

[0059] 12: first substrate; 121: first interface; 122: second interface; 123: third interface; 124: fourth interface; 125: fifth interface; 126: sixth interface; 127: seventh interface; 128: eighth interface; 129: fourteenth interface;

[0060] 13: second substrate; 130: first welding point; 131: second welding point;

[0061] 20: valve assembly; 21: first one-way valve; 22: second one-way valve; 23: third one-way valve; 24: fourth one-way valve;

[0062] 201: first solenoid valve; 202: second solenoid valve; 203: third solenoid valve; 204: fourth solenoid valve; 205: fifth solenoid valve; 206: sixth solenoid valve; 207: seventh solenoid valve;

[0063] 211: first expansion valve; 212: second expansion valve; 213: third expansion valve; 214: fourth expansion valve; 215: fifth expansion valve; 216: sixth expansion valve;

[0064] 30: Cooling liquid heat exchange unit; 300: Second plate;

[0065] 301: 16th channel; 302: 17th channel; 303: 18th channel;

[0066] 311: ninth interface; 312: tenth interface; 313: eleventh interface; 314: twelfth interface; 315: thirteenth interface;

[0067] 31: Four-way valve; 32: Water pump; 33: Sensor; 34: Water tank;

[0068] 40: air supply and enthalpy increase heat exchange mechanism; 401: first high pressure port; 402: second high pressure port; 403: first low pressure port; 404: second low pressure port;

[0069] 50: heat exchanger; 501: first end; 502: second end; 60: gas-liquid separator;

[0070] 1: Compressor; 2: In-vehicle condenser; 25: Air-heated PTC; 3: Out-vehicle heat exchanger; 4: Motor radiator; 5: Evaporator; 6: Battery pack heat exchanger; 61: First connection end; 62: Second connection end. DETAILED DESCRIPTION

[0071] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0072] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0073] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0074] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0075] Below, in conjunction with the accompanying drawings, a thermal management integrated module, a thermal management system and a vehicle provided by the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0076] refer to Figure 1 and Figure 13-24 The thermal management system includes a thermal management integrated module. According to some embodiments of the present application, the thermal management integrated module includes a refrigerant heat exchange unit 10, an air-supplying and enthalpy-increasing heat exchange mechanism 40, a coolant heat exchange unit 30 and a heat exchanger 50. The refrigerant heat exchange unit 10 is provided with a plurality of refrigerant flow channels. The air-supplying and enthalpy-increasing heat exchange mechanism 40 is installed in the refrigerant heat exchange unit 10 and is connected to the refrigerant flow channels for supplementing air and increasing enthalpy of the refrigerant flowing therethrough; the coolant heat exchange unit 30 is arranged opposite to the refrigerant heat exchange unit 10; the heat exchanger 50 is connected to both the refrigerant flow channels and the coolant heat exchange unit 30 for enabling the refrigerant heat exchange unit 10 to exchange heat with the coolant heat exchange unit 30.

[0077] In the embodiment of the present application, the refrigerant heat exchange unit 10 is provided with a plurality of refrigerant flow channels, the air-supplying and enthalpy-increasing heat exchange mechanism 40 is installed in the refrigerant heat exchange unit 10 and is connected to the refrigerant flow channels, and is used to supplement air and increase enthalpy of the refrigerant flowing through; the coolant heat exchange unit 30 is arranged opposite to the refrigerant heat exchange unit 10; the heat exchanger 50 is connected to both the refrigerant flow channels and the coolant heat exchange unit 30, and is used to exchange heat between the refrigerant heat exchange unit 10 and the coolant heat exchange unit 30. In this way, on the one hand, by integrating the refrigerant heat exchange unit 10, the air-supplying and enthalpy-increasing heat exchange mechanism 40, the coolant heat exchange unit 30 and the heat exchanger 50 into the thermal management integrated module, the degree of integration is improved, and it is convenient to simplify installation and layout; on the other hand, the air-supplying and enthalpy-increasing heat exchange mechanism 40 can effectively reduce the discharge temperature of the compressor, reduce losses, thereby increasing the life of the compressor and facilitating the application of new refrigerants; in addition, the heat exchange capacity of the thermal management integrated module is increased, and the performance of the thermal management integrated module is improved.

[0078] In specific applications, such as Figure 1 and Figure 13 As shown, the dotted box is the thermal management integrated module of the present application, and the compressor 1 is connected to the refrigerant heat exchange unit 10, which is used to compress and transport the refrigerant to the refrigerant heat exchange unit 10, so that the refrigerant entering the refrigerant heat exchange unit 10 has a higher pressure.

[0079] It should be noted that the refrigerant flowing in the refrigerant flow channel is a refrigerant used in the vehicle thermal management system to transfer heat through processes such as evaporation, compression, condensation, and expansion. Specifically, it can be any one of tetrafluoroethane (R134a) and fluoroolefin (R1234yf). Those skilled in the art can select the refrigerant according to their needs, and this application does not impose any restrictions on this. The coolant flowing in the coolant heat exchange unit 30 is specifically a mixture of water and an antifreeze agent (such as ethylene glycol or propylene glycol).

[0080] It can be understood that the air-supplying and enthalpy-increasing heat exchange mechanism 40 is specifically an economizer. The economizer absorbs heat by throttling and evaporating a part of the refrigerant, thereby supercooling the other part of the refrigerant. In this way, more cooling capacity and a higher energy efficiency ratio can be added to the thermal management integrated module, and the system can be stabilized, the exhaust temperature of the compressor 1 can be reduced, the compression ratio can be improved, and the problem of the compressor ratio being too large and not being able to work normally under low-temperature conditions of the unit can be avoided; in addition, the economizer increases the supercooling of the refrigerant and increases the cooling capacity of the evaporator 5.

[0081] It can be understood that the main function of the heat exchanger 50 is to dissipate or absorb heat through heat exchange, that is, to exchange heat between the refrigerant heat exchange unit 10 and the coolant heat exchange unit 30 to maintain the optimal operating temperature of the system, thereby improving the performance and efficiency of the vehicle.

[0082] refer to Figure 6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the refrigerant heat exchange unit 10 includes a first plate body 11, and the refrigerant flow channel is arranged in the first plate body 11, and the refrigerant flow channel includes a first refrigerant flow channel, a second refrigerant flow channel 104 and a third refrigerant flow channel; one end of the first refrigerant flow channel is suitable for communicating with the in-vehicle condenser 2, and the other end is connected to the first high-pressure port 401 of the air-supplying enthalpy-increasing heat exchange mechanism 40; one end of the second refrigerant flow channel 104 is connected to the second low-pressure port 404 of the air-supplying enthalpy-increasing heat exchange mechanism 40, and the other end is suitable for communicating with the compressor 1; one end of the third refrigerant flow channel is connected to the second high-pressure port 402 of the air-supplying enthalpy-increasing heat exchange mechanism 40, and the other end is connected to the heat exchanger 50.

[0083] In the embodiment of the present application, refrigerant flows out of compressor 1 through an external pipeline and enters the in-vehicle condenser 2. The refrigerant from in-vehicle condenser 2 enters the refrigerant heat exchange unit 10 through a pipeline, then enters the first high-pressure port 401 of the air-compensating heat exchange mechanism 40 through the first refrigerant flow channel, where it is connected. Thus, the refrigerant enters the air-compensating heat exchange mechanism 40. At the second high-pressure port 402 of the air-compensating heat exchange mechanism 40, the refrigerant is split into two paths: one path, which flows through the second low-pressure port 404, absorbs heat and evaporates into a low-temperature, low-pressure gaseous refrigerant, which then enters compressor 1 through the second refrigerant flow channel 104; the other path, which flows through the third refrigerant flow channel, enters the heat exchanger 50 for heat exchange. This forms a refrigerant flow cycle, and the refrigerant completes heat exchange through the cycle.

[0084] In a specific application, the refrigerant flows from the compressor 1 into the in-vehicle condenser 2, releases heat in the in-vehicle condenser 2, heats the air through the wind heating PTC (Positive Temperature Coefficient) 25, and is then blown into the vehicle by the fan to heat the vehicle. The refrigerant after releasing heat enters the air replenishment and enthalpy increase heat exchange mechanism 40 through the first refrigerant flow channel.

[0085] It needs to be explained that the air-supplementing and reheat-increasing heat exchange mechanism 40 can work or not work. When it is not working, the refrigerant enters the air-supplementing and reheat-increasing heat exchange mechanism 40 from the first high-pressure port 401 of the air-supplementing and reheat-increasing heat exchange mechanism 40, and then comes out from the second high-pressure port 402 of the air-supplementing and reheat-increasing heat exchange mechanism 40. At this time, the refrigerant only passes through the air-supplementing and reheat-increasing heat exchange mechanism 40, and no heat exchange is performed in the air-supplementing and reheat-increasing heat exchange mechanism 40.

[0086] During operation, the refrigerant enters the air-supplying and reheat-increasing heat exchange mechanism 40 from the first high-pressure port 401 of the air-supplying and reheat-increasing heat exchange mechanism 40, and then is diverted at the second high-pressure port 402 of the air-supplying and reheat-increasing heat exchange mechanism 40. One path of the refrigerant flowing through the second low-pressure port 404 absorbs heat and evaporates to become a low-temperature and low-pressure gaseous refrigerant, and then enters the compressor 1 through the second refrigerant flow channel 104; the other path enters the heat exchanger 50 through the third refrigerant flow channel for heat exchange.

[0087] In some embodiments of the present application, a second interface 122 communicating with the second refrigerant flow channel 104 is provided on the first plate 11 , and the second interface 122 is suitable for communicating with the compressor 1 .

[0088] In an embodiment of the present application, a second interface 122 connected to the second refrigerant flow channel 104 is provided on the first plate 11, thereby facilitating the connection between the compressor 1 and the refrigerant heat exchange unit 10 through an external pipeline, and further improving the integration of the refrigerant heat exchange unit 10, thereby enriching the refrigerant circulation path.

[0089] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the refrigerant heat exchange unit 10 also includes a valve assembly 20, which is arranged on the first plate body 11. The valve assembly 20 includes a first solenoid valve 201. A first channel 101 and a second channel 102 are provided in the first plate body 11. The first channel 101 is connected to the second channel 102 through the first solenoid valve 201 to form a first refrigerant flow channel; the first channel 101 is suitable for connecting with the in-vehicle condenser 2, and the second channel 102 is connected to the first high-pressure port 401 of the air-supplying and enthalpy-increasing heat exchange mechanism 40.

[0090] In the embodiment of the present application, a first channel 101 and a second channel 102 are provided in the first plate 11. The first channel 101 is connected to the second channel 102 via a first solenoid valve 201 to form a first refrigerant flow path. The first channel 101 is adapted to communicate with the in-vehicle condenser 2, while the second channel 102 is connected to the first high-pressure port 401 of the air-compensating heat exchange mechanism 40. Thus, the refrigerant in the in-vehicle condenser 2 enters the air-compensating heat exchange mechanism 40 through the first channel 101, the first solenoid valve 201, and the second channel 102. This allows the refrigerant to be replenished and enthalpy increased in the air-compensating heat exchange mechanism 40, thereby reducing the compression ratio of the compressor 1.

[0091] In some embodiments of the present application, the first plate body 11 is provided with a first interface 121 communicating with the first channel 101 , and the first interface 121 is suitable for communicating with the in-vehicle condenser 2 .

[0092] In an embodiment of the present application, a first interface 121 connected to the first channel 101 is provided on the first plate 11, thereby facilitating the connection between the in-vehicle condenser 2 and the refrigerant heat exchange unit 10 through an external pipeline, and further improving the integration of the refrigerant heat exchange unit 10, thereby enriching the circulation path of the refrigerant.

[0093] It should be explained that the valve assembly 20 specifically includes multiple valve body types, such as one or more of a solenoid valve (SOV), a one-way valve, and an expansion valve (EXV). The solenoid valve is used to control the flow of the refrigerant in the refrigerant flow channel and adjust its flow rate and flow velocity; the expansion valve is used to respond to load changes and optimize the refrigerant flow according to different working conditions to achieve precise control. Those skilled in the art can make settings according to their needs, and this application does not impose any restrictions on this.

[0094] In a specific application, the first solenoid valve 201 is provided between the first channel 101 and the second channel 102 , so as to connect or block the first channel 101 and the second channel 102 .

[0095] It can be understood that a through hole is provided on the second channel 102 , which is in communication with the first high-pressure port 401 of the air-supplementing enthalpy-increasing heat exchange mechanism 40 , thereby achieving communication between the second channel 102 and the first high-pressure port 401 .

[0096] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15According to some embodiments of the present application, the third refrigerant flow channel includes a third channel 103 and a fifth channel 105, the valve assembly 20 also includes a second expansion valve 212, the third channel 103 is connected to the second high-pressure port 402, the fifth channel 105 is connected to the heat exchanger 50, and the third channel 103 is connected to the fifth channel 105 through the second expansion valve 212.

[0097] In the embodiment of the present application, after the refrigerant flows out from the second high-pressure port 402 of the air-supplying enthalpy-increasing heat exchange mechanism 40 , one path flows into the third channel 103 , then passes through the second expansion valve 212 into the fifth channel 105 , and then enters the heat exchanger 50 .

[0098] In a specific application, the third channel 103 and the fifth channel 105 are both provided in the first plate body 11 , thereby forming independent and different flow channels in the first plate body 11 , thereby improving the integration of the refrigerant heat exchange unit 10 .

[0099] It needs to be explained that when the air-supplying and reheat-increasing heat exchange mechanism 40 is working, that is, when the refrigerant flows out from the second high-pressure port 402 and is divided into two paths, the refrigerant enters the first high-pressure port 401 of the air-supplying and reheat-increasing heat exchange mechanism 40 from the vehicle condenser 2 through the first channel 101, the first solenoid valve 201 and the second channel 102.

[0100] refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 13 and Figure 14 According to some embodiments of the present application, the valve assembly 20 further includes a third solenoid valve 203 , and the third channel 103 is connected to the fifth channel 105 through the third solenoid valve 203 .

[0101] In an embodiment of the present application, the third solenoid valve 203 connects the third channel 103 and the fifth channel 105, so that when the air-supplying enthalpy-increasing heat exchange mechanism 40 is not working, the refrigerant flowing out of the second high-pressure port 402 can directly flow into the fifth channel 105 through the third channel 103 and the third solenoid valve 203, thereby meeting different working modes and forming another refrigerant flow path.

[0102] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the valve assembly 20 further includes a third expansion valve 213 , and the first channel 101 is connected to the second channel 102 through the third expansion valve 213 to form a first refrigerant flow channel.

[0103] In the embodiment of the present application, by providing the third expansion valve 213 , the first channel 101 and the second channel 102 can be connected via the third expansion valve 213 according to different working modes of the thermal management system.

[0104] In a specific application, when the air-supplying and reheat-increasing heat exchange mechanism 40 is not working, that is, the refrigerant flows in from the first high-pressure port 401 and then flows out from the second high-pressure port 402 (at this time the refrigerant only passes through the air-supplying and reheat-increasing heat exchange mechanism 40), the refrigerant enters the first high-pressure port 401 of the air-supplying and reheat-increasing heat exchange mechanism 40 from the in-vehicle condenser 2 through the first channel 101, the third expansion valve 213 and the second channel 102.

[0105] like Figure 15 As shown, in some embodiments of the present application, the first channel 101 is connected to the heat exchanger 50 through the first solenoid valve 201; the valve assembly 20 also includes a fourth solenoid valve 204, and the first channel 101 is connected to the first low-pressure port 403 through the fourth solenoid valve 204 and the third expansion valve 213 in sequence.

[0106] In an embodiment of the present application, after the refrigerant flows out of the vehicle condenser 2, it can be divided into two paths. One path is connected to the heat exchanger 50 through the first channel 101 and the first solenoid valve 201; the other path enters the heat exchanger 50 through the fourth solenoid valve 204 and the third expansion valve 213; thereby meeting the refrigerant circulation requirements under different working modes of the thermal management system.

[0107] It should be explained that in actual processing, Figure 15 The system schematic diagram shown is Figure 6 The flow channel structure diagram shown is changed to meet the corresponding flow relationship.

[0108] refer to Figure 2-6 、 Figure 13 and Figure 15 In some embodiments of the present application, the valve assembly further includes a first expansion valve 211 ; the first low-pressure port 403 of the air-supplementing enthalpy-increasing heat exchange mechanism 40 is connected to the second high-pressure port 402 through the first expansion valve 211 .

[0109] In an embodiment of the present application, by setting a first expansion valve 211, the first low-pressure port 403 is connected to the second high-pressure port 402, so that the refrigerant flowing out of the second high-pressure port 402 can flow into the first low-pressure port 403 under the control of the first expansion valve 211, and then flow into the second low-pressure port 404, and finally flow back to the compressor 1.

[0110] It should be explained that the air-compensating and enthalpy-increasing heat exchange mechanism 40 has a first high-pressure port 401, a second high-pressure port 402, a first low-pressure port 403, and a second low-pressure port 404. The first high-pressure port 401 and the second high-pressure port 402 are internally connected to each other, and the first low-pressure port 403 and the second low-pressure port 404 are internally connected to each other. The second high-pressure port 402 is connected to the first low-pressure port 403 via the third channel 103 and the first expansion valve 211. The first expansion valve 211 can control the flow of refrigerant from the second high-pressure port 402 to the first low-pressure port 403.

[0111] like Figure 14 As shown, the first low-pressure port 403 of the air-supplying and enthalpy-increasing heat exchange mechanism 40 is connected to the first refrigerant flow channel through the first expansion valve 211 .

[0112] In the embodiment of the present application, a first expansion valve 211 may be provided to connect the first low-pressure port 403 and the first refrigerant flow channel, thereby forming another refrigerant flow channel to meet different working modes of the thermal management system.

[0113] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the refrigerant flow channel also includes a fourth refrigerant flow channel; one end of the third refrigerant flow channel is connected to the second high-pressure port 402, and the other end is connected to the first end 501 of the heat exchanger 50, and the fourth refrigerant flow channel is connected to the second end 502 of the heat exchanger 50, and the fourth refrigerant flow channel is also used to connect to the gas-liquid separator 60.

[0114] In an embodiment of the present application, the refrigerant in the air-supplementing and enthalpy-increasing heat exchange mechanism 40 flows into the first end 501 of the heat exchanger 50 through the third refrigerant flow channel, and after heat exchange in the heat exchanger 50, flows out from the second end 502, and then flows into the gas-liquid separator 60 through the fourth refrigerant flow channel. The gas-liquid separator 60 is connected to the compressor 1 through an external pipeline, thereby forming a refrigerant circulation loop.

[0115] Specifically, after the refrigerant flows out from the second high-pressure port 402 of the air-supplying and enthalpy-increasing heat exchange mechanism 40, it flows into the first low-pressure port 403 through the third channel 103 and the first expansion valve 211, then flows out from the second low-pressure port 404, and then flows into the compressor 1 through the second refrigerant flow channel 104 and the second interface 122; the other path flows into the fifth channel 105 through the third channel 103 and the second expansion valve 212, and then flows into the first end 501 of the heat exchanger 50. After heat exchange inside the heat exchanger 50, it flows out from the second end 502, and then flows into the gas-liquid separator 60 through the fourth refrigerant flow channel.

[0116] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the fourth refrigerant flow channel includes a sixth channel 106 and a seventh channel 107, and the valve assembly 20 also includes a third one-way valve 23 and a second solenoid valve 202; the sixth channel 106 is connected to the second end 502, and the sixth channel 106 is suitable for connecting with the external heat exchanger 3 through the third one-way valve 23; the seventh channel 107 is connected to the sixth channel 106 through the second solenoid valve 202, and the seventh channel 107 is used to connect with the gas-liquid separator 60.

[0117] In an embodiment of the present application, the sixth channel 106 is connected to the second end 502, and the sixth channel 106 is suitable for connecting to the external heat exchanger 3 through the third one-way valve 23; the seventh channel 107 is connected to the sixth channel 106 through the second solenoid valve 202, and the seventh channel 107 is used to connect to the gas-liquid separator 60, so that after the refrigerant flows out from the second end 502 of the heat exchanger 50, it flows into the seventh channel 107 through the sixth channel 106 and the second solenoid valve 202, and then flows into the gas-liquid separator 60; or the refrigerant in the external heat exchanger 3 flows back into the sixth channel 106 through the third one-way valve 23 to meet the different working modes of the thermal integration module.

[0118] like Figure 2 As shown, in some embodiments of the present application, a fifth interface 125 communicating with the sixth channel 106 and a third interface 123 communicating with the seventh channel 107 are provided on the first plate body 11 , wherein the third one-way valve 23 is disposed in the fifth interface 125 .

[0119] In an embodiment of the present application, after the refrigerant flows out from the second high-pressure port 402 of the air-supplying and enthalpy-increasing heat exchange mechanism 40, it flows into the first low-pressure port 403 through the third channel 103 and the first expansion valve 211, then flows out from the second low-pressure port 404, and then flows into the compressor 1 through the second refrigerant flow channel 104 and the second interface 122; the other path flows into the fifth channel 105 through the third channel 103 and the second expansion valve 212, and then flows into the first end 501 of the heat exchanger 50. After heat exchange inside the heat exchanger 50, it flows out from the second end 502, and then flows into the seventh channel 107 through the sixth channel 106 and the second solenoid valve 202, and then flows back into the gas-liquid separator 60 through the third interface 123 and the external pipeline, forming a flow cycle of the refrigerant.

[0120] It needs to be explained that the refrigerant exchanges heat in the external heat exchanger 3. Generally speaking, the high-temperature and high-pressure refrigerant at the outlet of the compressor 1 is expanded by the electronic expansion valve and then enters the external heat exchanger 3 to release heat, melting the frost layer on the surface of the heat exchanger; or the high-temperature refrigerant discharged by the compressor 1 directly defrosts the external heat exchanger 3, and then flows through the expansion valve, and then enters the external supercooler to evaporate into a low-temperature and low-pressure refrigerant, and finally enters the compressor 1 to complete the cycle.

[0121] It can be understood that after completing the heat exchange, the refrigerant in the external heat exchanger 3 is connected to the third one-way valve 23 in the fifth interface 125 through the external pipeline and flows back into the sixth channel 106 for circulation.

[0122] In some embodiments of the present application, the refrigerant heat exchange unit 10 can implement the air conditioning and heating mode of the thermal management system, as follows:

[0123] Air conditioning and heating (air supply enthalpy increase heat exchange mechanism 40 does not work):

[0124] The flow path of the refrigerant is as follows Figure 16 As shown, the refrigerant flowing out of the compressor 1 enters the condenser 2 in the vehicle through the external pipeline. The refrigerant releases heat in the condenser 2 in the vehicle, and then the hot air is blown into the vehicle through the fan to heat the vehicle. The refrigerant flowing out of the vehicle condenser 2 enters the first interface 121 through the external pipeline, and then enters the second channel 102 through the first channel 101 and the third expansion valve 213. The refrigerant flows along the second channel 102 into the first high-pressure port 401 of the air-supplying and enthalpy-increasing heat exchange mechanism 40, flows out from the second high-pressure port 402, enters the third channel 103, passes through the third solenoid valve 203, enters the fifth channel 105, enters the first end 501 of the heat exchanger 50, and after heat exchange in the heat exchanger 50, flows out from the second end 502, enters the sixth channel 106, and then passes through the second solenoid valve 202 to enter the seventh channel 107, and finally enters the gas-liquid separator 60 through the third interface 123 and the external pipeline, and then returns to the compressor 1 through the external pipeline, forming a complete refrigerant cycle for air conditioning and heating.

[0125] Air conditioning and heating (air supply and enthalpy increase heat exchange mechanism 40 works):

[0126] The flow path of the refrigerant is as follows Figure 17As shown, the refrigerant flowing out of the compressor 1 enters the condenser 2 in the vehicle through an external pipeline. The refrigerant releases heat in the condenser 2 in the vehicle, and then the hot air is blown into the vehicle through the fan to heat the vehicle. The refrigerant flowing out of the condenser 2 in the vehicle enters the first interface 121 through an external pipeline, and then enters the second channel 102 through the first channel 101 and the third expansion valve 213. The refrigerant flows along the second channel 102 into the first high-pressure port 401 of the air-supplying and enthalpy-increasing heat exchange mechanism 40, and flows out from the second high-pressure port 402. Here, it is divided into two paths. The first path passes through the third channel 103 and the first expansion valve 211 and flows into the first low-pressure port 403. Then, it passes through the internal channel of the air-supplying and enthalpy-increasing heat exchange mechanism 40 and enters the second low-pressure port 404. After flowing out from the second low-pressure port 404, it flows into the second refrigerant flow channel 1 04, and then re-enters the compressor 1 through the second interface 122 and the external pipeline; after the second path flows into the third channel 103, it passes through the second expansion valve 212 and the fifth channel 105 and flows into the first end 501 of the heat exchanger 50. After heat exchange in the heat exchanger 50, it flows out from the second end 502, enters the sixth channel 106, passes through the second solenoid valve 202 and enters the seventh channel 107, and then flows into the gas-liquid separator 60 through the third interface 123 and the external pipeline, and then re-flows into the compressor 1 through the external pipeline, forming another complete refrigerant cycle for air conditioning and heating.

[0127] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the refrigerant heat exchange unit 10 includes a first plate body 11 and a valve assembly 20, the valve assembly 20 is arranged on the first plate body 11, the refrigerant flow channel also includes an eighth channel 108 and a fourth refrigerant flow channel, the fourth refrigerant flow channel includes a sixth channel 106, and the valve assembly 20 also includes a fourth solenoid valve 204; the first refrigerant flow channel includes a second channel 102, the eighth channel 108 is connected to the second channel 102 through the fourth solenoid valve 204, the eighth channel 108 is used to connect one end of the outdoor heat exchanger; the sixth channel 106 is used to connect the other end of the outdoor heat exchanger.

[0128] In the embodiment of the present application, the eighth channel 108 is connected to the second channel 102 through the fourth solenoid valve 204, and the eighth channel 108 is used to connect one end of the external heat exchanger 3; the sixth channel 106 is used to connect the other end of the external heat exchanger 3, so that the refrigerant forms a communication relationship with the two ends of the external heat exchanger 3 through the eighth channel 108 and the sixth channel 106, respectively, so that the refrigerant completes the circulation circuit in the external heat exchanger 3.

[0129] like Figure 2 、 Figure 13 、 Figure 14 and Figure 15As shown, in some embodiments of the present application, a fourth interface 124 communicating with the eighth channel 108 is provided on the first plate 11 , and the fourth interface 124 is suitable for communicating with the external heat exchanger 3 .

[0130] In an embodiment of the present application, the refrigerant flows from the first interface 121 into the first channel 101, then flows into the second channel 102 through the first solenoid valve 201, then flows into the eighth channel 108 through the fourth solenoid valve 204, and flows into one end of the external heat exchanger 3 through the fourth interface 124 and the external pipeline. After the heat exchange is completed in the external heat exchanger 3, the other end of the external heat exchanger 3 passes through the external pipeline, and in turn passes through the third one-way valve 23 and the fifth interface 125 to enter the sixth channel 106, forming a flow loop of the refrigerant in the external heat exchanger 3.

[0131] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the valve assembly further includes a fourth expansion valve 214 , which is used to connect the sixth channel 106 and the evaporator 5 .

[0132] In the embodiment of the present application, the refrigerant flowing into the sixth channel 106 enters the evaporator 5 through the fourth expansion valve 214, and then absorbs heat and evaporates in the evaporator 5, absorbing heat inside the vehicle, thereby reducing the temperature inside the vehicle.

[0133] It should be explained that the evaporator 5 is generally used to convert the refrigerant from liquid to gas, thereby absorbing heat from the external air to achieve a cooling effect.

[0134] In some embodiments of the present application, the refrigerant heat exchange unit 10 can implement the air conditioning and cooling mode of the thermal management system, specifically as follows:

[0135] Air conditioning and refrigeration:

[0136] The flow path of the refrigerant is as follows Figure 18As shown, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 1 enters the vehicle condenser 2 through the external pipeline (at this time, the refrigerant only passes through the vehicle condenser 2 without heat exchange). The refrigerant flowing out of the vehicle condenser 2 enters the first interface 121 through the external pipeline, then enters the second channel 102 through the first channel 101 and the first solenoid valve 201, enters the eighth channel 108 through the fourth solenoid valve 204, passes through the fourth interface 124 and the external pipeline, and enters one end of the vehicle external heat exchanger 3. The refrigerant generates heat and liquefies in the vehicle external heat exchanger 3, and is converted into a medium-temperature and high-pressure liquid. Then, the other end of the vehicle external heat exchanger 3 is connected to the fifth interface 125 through the external pipeline, and then enters the sixth channel 106 through the third one-way valve 23, and is connected to the evaporator 5 through the fourth expansion valve 214 and the external pipeline. The refrigerant absorbs heat and evaporates in the evaporator 5, reducing the temperature inside the vehicle. Then, it enters the gas-liquid separator 60 through the external pipeline and flows back to the compressor 1 through the external pipeline, forming the entire refrigerant cycle during air conditioning cooling.

[0137] In some embodiments of the present application, Figure 2 As shown, a fourteenth interface 129 is further provided in the first plate body 11 , the fourteenth interface 129 is connected to the evaporator 5 , and the sixth channel 106 is communicated with the fourteenth interface 129 through the fourth expansion valve 214 .

[0138] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the refrigerant flow channel also includes a fourth refrigerant flow channel, a fifth refrigerant flow channel and a sixth refrigerant flow channel. The fourth refrigerant flow channel includes a sixth channel 106 and a seventh channel 107. One end of the fifth refrigerant flow channel is connected to the sixth channel 106, and the other end is suitable for connecting to the first connection end 61 of the battery pack heat exchanger 6. One end of the sixth refrigerant flow channel is suitable for connecting to the second connection end 62 of the battery pack heat exchanger 6, and the other end is connected to the seventh channel 107.

[0139] In an embodiment of the present application, the thermal management integrated module is also used to heat or cool the battery pack heat exchanger 6, connecting the first connection end 61 of the battery pack heat exchanger 6 through the fifth refrigerant flow channel, and connecting the second connection end 62 of the battery pack heat exchanger 6 through the sixth refrigerant flow channel, thereby completing the refrigerant flow circuit in the battery pack heat exchanger 6.

[0140] It should be explained that the battery pack heat exchanger 6 effectively removes heat from the battery cells through physical contact, thereby maintaining the battery at an optimal temperature. In this application, specifically, heat is removed through the circulation of a refrigerant.

[0141] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15According to some embodiments of the present application, the fifth refrigerant flow channel includes a ninth channel 109 and a thirteenth channel 113, and the valve assembly 20 includes a first one-way valve 21 and a fifth expansion valve 215; the ninth channel 109 is connected to the sixth channel 106 through the first one-way valve 21, and the thirteenth channel 113 is connected to the ninth channel 109 through the fifth expansion valve 215, and the thirteenth channel 113 is suitable for connecting to the first connection end 61 of the battery pack heat exchanger 6.

[0142] In an embodiment of the present application, the refrigerant in the external heat exchanger 3 flows into the sixth channel 106 , flows into the ninth channel through the first one-way valve 21 , then enters the thirteenth channel 113 through the fifth expansion valve 215 , and then flows into the first connection end 61 of the battery pack heat exchanger 6 .

[0143] In some embodiments of the present application, Figure 3 and Figure 4 As shown, the first plate 11 is provided with a seventh port 127 that communicates with the thirteenth channel 113. The seventh port 127 is adapted to connect to the first connection end 61 of the battery pack heat exchanger 6. This facilitates connection between the battery pack heat exchanger 6 and the refrigerant heat exchange unit 10 via external piping, thereby improving the integration of the refrigerant heat exchange unit 10.

[0144] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the fifth refrigerant flow channel further includes a fifteenth channel 115 , and the valve assembly 20 further includes a seventh solenoid valve 207 , and the fifteenth channel 115 is connected to the thirteenth channel 113 through the seventh solenoid valve 207 .

[0145] In an embodiment of the present application, the fifteenth channel 115 and the thirteenth channel 113 are connected by setting the seventh solenoid valve 207, thereby realizing another flow channel for the refrigerant, so that when the battery is heated and cooled, refrigerants of different temperatures and pressures can flow into the battery pack heat exchanger 6 through different flow channels.

[0146] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the sixth refrigerant flow channel includes an eleventh channel 111 and a twelfth channel 112, and the valve assembly 20 includes a fifth solenoid valve 205 and a sixth expansion valve 216; the eleventh channel 111 is suitable for connecting to the second connection end 62 of the battery pack heat exchanger 6, and the twelfth channel 112 is connected to the eleventh channel 111 through the sixth expansion valve 216; the seventh channel 107 is connected to the twelfth channel 112 through the fifth solenoid valve 205.

[0147] In an embodiment of the present application, the refrigerant flows into the first connection end 61 of the battery pack heat exchanger 6, and after heat exchange in the battery pack heat exchanger 6, flows out from the second connection end 62 of the battery pack heat exchanger 6, flows into the eleventh channel 111 through the external pipeline, flows into the twelfth channel 112 through the sixth expansion valve 216, and then flows into the seventh channel 107 through the fifth solenoid valve 205, enters the gas-liquid separator 60 through the third interface 123 and the external pipeline, and finally enters the compressor 1, forming a circulation loop of the refrigerant at the battery pack heat exchanger 6.

[0148] like Figure 3 and Figure 4 As shown, in some embodiments of the present application, the first plate 11 is provided with a sixth port 126 that communicates with the eleventh channel 111. The sixth port 126 is adapted to communicate with the second connection end 62 of the battery pack heat exchanger 6. This facilitates connection between the battery pack heat exchanger 6 and the refrigerant heat exchange unit 10, thereby improving the integration of the refrigerant heat exchange unit 10.

[0149] In some embodiments of the present application, the refrigerant heat exchange unit 10 can implement a battery cooling mode of the thermal management system, specifically as follows:

[0150] Battery Cooling:

[0151] The flow path of the refrigerant is as follows Figure 19 As shown, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 1 enters the in-vehicle condenser 2 through the external pipeline (at this time, the refrigerant only passes through the in-vehicle condenser 2 without heat exchange), and the refrigerant flowing out of the in-vehicle condenser 2 enters the first interface 121 through the external pipeline, and then enters the second channel 102 through the first channel 101 and the first solenoid valve 201, enters the eighth channel 108 through the fourth solenoid valve 204, and enters one end of the external heat exchanger 3 through the fourth interface 124 and the external pipeline. The refrigerant generates heat and liquefies in the external heat exchanger 3 and is converted into a medium-temperature and high-pressure liquid. Then, the other end of the external heat exchanger 3 is connected to the fifth interface 125 through the external pipeline, and then enters the sixth channel 106 through the third one-way valve 23, and enters the first one-way valve 21. It enters the ninth channel 109, then passes through the fifth expansion valve 215 into the thirteenth channel 113, passes through the seventh interface 127 and the external pipeline into the first connection end 61 of the battery pack heat exchanger 6. At this time, the low-temperature and low-pressure gas-liquid mixed refrigerant absorbs the heat of the battery and evaporates, thereby achieving cooling when the power battery temperature is too high. It then enters the eleventh channel 111 from the second connection end 62 of the battery pack heat exchanger 6 through the external pipeline and the sixth interface 126, passes through the sixth expansion valve 216 into the twelfth channel 112, passes through the fifth solenoid valve 205 into the seventh channel 107, then passes through the third interface 123 and the external pipeline into the gas-liquid separator 60, and finally enters the compressor 1 through the external pipeline, forming the entire refrigerant cycle when the battery is cooled.

[0152] In some embodiments of the present application, the refrigerant heat exchange unit 10 can implement the air conditioning cooling + battery cooling mode of the thermal management system, as follows:

[0153] Air conditioning cooling + battery cooling:

[0154] The flow path of the refrigerant is as follows Figure 20 As shown, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 1 enters the in-vehicle condenser 2 through the external pipeline (at this time, the refrigerant only passes through the in-vehicle condenser 2 without heat exchange). The refrigerant flowing out of the in-vehicle condenser 2 enters the first interface 121 through the external pipeline, and then enters the second channel 102 through the first channel 101 and the first solenoid valve 201, enters the eighth channel 108 through the fourth solenoid valve 204, and enters one end of the external heat exchanger 3 through the fourth interface 124 and the external pipeline. The refrigerant generates heat and liquefies in the external heat exchanger 3 to be converted into a medium-temperature and high-pressure liquid. Then, the other end of the external heat exchanger 3 is connected to the fifth interface 125 through the external pipeline, and then enters the sixth channel 106 through the third one-way valve 23. Then, the refrigerant in the sixth channel 106 is divided into two paths:

[0155] The first path passes through the fourth expansion valve 214 and the external pipeline to the evaporator 5. The refrigerant absorbs heat and evaporates in the evaporator 5, reducing the temperature inside the vehicle. The refrigerant then enters the gas-liquid separator 60 through the external pipeline and then flows back to the compressor 1 through the external pipeline, forming the entire refrigerant cycle for air conditioning refrigeration.

[0156] The second path passes through the first one-way valve 21 into the ninth channel 109, and then passes through the fifth expansion valve 215 into the thirteenth channel 113, and is connected to the first connection end 61 of the battery pack heat exchanger 6 through the seventh interface 127 and the external pipeline. At this time, the low-temperature and low-pressure gas-liquid mixed refrigerant absorbs the heat of the battery and evaporates, thereby cooling the power battery when the temperature is too high. Then, it enters the eleventh channel 111 from the second connection end 62 of the battery pack heat exchanger 6 through the external pipeline and the sixth interface 126, enters the twelfth channel 112 through the sixth expansion valve 216, and then enters the seventh channel 107 through the fifth solenoid valve 205, and then enters the gas-liquid separator 60 through the third interface 123 and the external pipeline, and finally enters the compressor 1 through the external pipeline, forming the entire refrigerant cycle for battery cooling.

[0157] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the sixth refrigerant flow channel also includes a fourteenth channel 114, the valve assembly 20 includes a sixth solenoid valve 206, the fourteenth channel 114 is suitable for communicating with the compressor 1, and the fourteenth channel 114 is connected to the twelfth channel 112 through the sixth solenoid valve 206.

[0158] In the embodiment of the present application, by providing the fourteenth channel 114 and the sixth solenoid valve 206, the compressor 1 is also connected to the battery pack heat exchanger 6 through the fourteenth channel 114 and the sixth solenoid valve 206, thereby satisfying the refrigerant flow through the channel when heating the battery.

[0159] In some embodiments of the present application, Figure 3 and Figure 5 As shown, the first plate 11 is further provided with an eighth port 128 communicating with the fourteenth channel 114. The eighth port 128 is adapted to communicate with the compressor 1. This facilitates the connection between the compressor 1 and the refrigerant heat exchange unit 10 and improves the integration of the refrigerant heat exchange unit 10.

[0160] Specifically, after the high-temperature and high-pressure refrigerant in the compressor 1 flows out, it enters the fourteenth channel 114 through the external pipeline and the eighth interface 128, then passes through the sixth solenoid valve 206 to enter the twelfth channel 112, then passes through the sixth expansion valve 216 to enter the eleventh channel 111, and then passes through the sixth interface 126 and the external pipeline to enter the second connection end 62 of the battery pack heat exchanger 6. After entering the battery pack heat exchanger 6, the refrigerant releases heat to heat the battery, thereby achieving battery heating, and then flows out from the first connection end 61 of the battery pack heat exchanger 6, enters the thirteenth channel 113 through the external pipeline and the seventh interface 127, completing the flow loop of the refrigerant at the battery pack heat exchanger 6 when the battery is heated.

[0161] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15 According to some embodiments of the present application, the fifth refrigerant flow channel further includes a fifteenth channel 115 , the valve assembly 20 further includes a fourth one-way valve 24 , and the fifteenth channel 115 is further connected to the first refrigerant flow channel through the fourth one-way valve 24 .

[0162] In the embodiment of the present application, the fifteenth channel 115 is also connected to the first refrigerant flow channel through the fourth one-way valve 24, so that the refrigerant that has released heat in the battery pack heat exchanger 6 to heat the battery re-enters the first refrigerant flow channel through the fifteenth channel 115 and the fourth one-way valve 24, and then circulates again.

[0163] In a specific application, the fifteenth channel 115 is connected to the second channel 102 through the fourth one-way valve 24 , so that the refrigerant re-enters the second channel 102 for circulation.

[0164] refer to Figure 2-6 、 Figure 13 、 Figure 14 and Figure 15According to some embodiments of the present application, the fifth refrigerant flow channel also includes a fifteenth channel 115, and the valve assembly 20 also includes a second one-way valve 22, which is arranged between the seventh solenoid valve 207 and the fifteenth channel 115, and the second one-way valve 22 is connected to the first refrigerant flow channel.

[0165] In an embodiment of the present application, the second one-way valve 22 is arranged between the seventh solenoid valve 207 and the fifteenth channel 115, and the second one-way valve 22 is connected to the first refrigerant flow channel, so that the refrigerant that has completed heat release in the battery pack heat exchanger 6 to heat the battery re-enters the first refrigerant flow channel through the fifteenth channel 115 and the second one-way valve 22, and then re-circulates.

[0166] In a specific application, the second one-way valve 22 is connected to the second channel 102 , so that the refrigerant re-enters the second channel 102 for circulation. At this time, the second one-way valve 22 ensures the one-way flow of the refrigerant.

[0167] In some embodiments of the present application, the refrigerant heat exchange unit 10 can realize the battery heating mode of the thermal management system (the air supply enthalpy increase heat exchange mechanism 40 is not working), specifically as follows:

[0168] Battery heating (air supply enthalpy increase heat exchange mechanism 40 does not work):

[0169] The flow path of the refrigerant is as follows Figure 21 As shown, after the high-temperature and high-pressure refrigerant in the compressor 1 flows out, it enters the fourteenth channel 114 through the external pipeline and the eighth interface 128, then enters the twelfth channel 112 through the sixth solenoid valve 206, then enters the eleventh channel 111 through the sixth expansion valve 216, and then enters the second connection end 62 of the battery pack heat exchanger 6 through the sixth interface 126 and the external pipeline. After entering the battery pack heat exchanger 6, the refrigerant releases heat to heat the battery, thereby achieving battery heating, and then flows out from the first connection end 61 of the battery pack heat exchanger 6, enters the thirteenth channel 113 through the external pipeline and the seventh interface 127, enters the fifteenth channel 115 through the fifth expansion valve 215, and then enters the second The one-way valve 22 enters the second channel 102, flows into the first high-pressure port 401 (the refrigerant only passes through the air-supplying enthalpy-increasing heat exchange mechanism 40, and no heat exchange is performed), flows out from the second high-pressure port 402, enters the third channel 103, and then flows into the fifth channel 105 through the third solenoid valve 203, and then flows into the first end 501 of the heat exchanger 50. After absorbing heat and evaporating in the heat exchanger 50, it flows out from the second end 502, enters the sixth channel 106, flows into the seventh channel 107 through the second solenoid valve 202, and then flows into the gas-liquid separator 60 through the third interface 123 and the external pipeline, and finally flows back to the compressor 1 through the external pipeline, forming a cycle of the entire refrigerant for battery heating.

[0170] In some embodiments of the present application, the refrigerant heat exchange unit 10 can implement a battery heating mode (operation of the air-supply enthalpy-increasing heat exchange mechanism 40 ) of the thermal management system, specifically as follows:

[0171] Battery heating (air supply enthalpy increase heat exchange mechanism 40 works):

[0172] The flow path of the refrigerant is as follows Figure 24 As shown, after the high-temperature and high-pressure refrigerant in the compressor 1 flows out, it enters the fourteenth channel 114 through the external pipeline and the eighth interface 128, then passes through the sixth solenoid valve 206 to enter the twelfth channel 112, then passes through the sixth expansion valve 216 to enter the eleventh channel 111, and then passes through the sixth interface 126 and the external pipeline to enter the second connection end 62 of the battery pack heat exchanger 6. After entering the battery pack heat exchanger 6, the refrigerant releases heat to heat the battery, thereby achieving battery heating, and then flows out from the first connection end 61 of the battery pack heat exchanger 6, enters the thirteenth channel 113 through the external pipeline and the seventh interface 127, enters the fifteenth channel 115 through the seventh solenoid valve 207 and the fourth one-way valve 24, and then enters the second channel 102 through the second one-way valve 22, flows into the first high-pressure port 401, and flows out from the second high-pressure port 402, where it is divided into There are two routes. The first route flows into the first low-pressure port 403 through the third channel 103 and the first expansion valve 211, and then enters the second low-pressure port 404 through the internal channel of the air-increasing enthalpy-increasing heat exchange mechanism 40. After flowing out from the second low-pressure port 404, it flows into the second refrigerant flow channel 104, and then re-enters the compressor 1 through the second interface 122 and the external pipeline; the second route flows into the third channel 103, passes through the second expansion valve 212 and the fifth channel 105, and flows into the first end 501 of the heat exchanger 50. After absorbing heat and evaporating in the heat exchanger 50, it flows out from the second end 502, enters the sixth channel 106, passes through the second solenoid valve 202 and enters the seventh channel 107, and then flows into the gas-liquid separator 60 through the third interface 123 and the external pipeline, and then re-flows into the compressor 1 through the external pipeline, forming another complete refrigerant cycle for battery heating.

[0173] In some embodiments of the present application, the refrigerant heat exchange unit 10 can realize the air conditioning heating + battery heating (air supply enthalpy increase heat exchange mechanism 40 is not working) mode of the thermal management system, specifically as follows:

[0174] Air conditioning heating + battery heating (air supply enthalpy increase heat exchange mechanism 40 does not work):

[0175] The flow path of the refrigerant is as follows Figure 23 As shown, after the high-temperature and high-pressure refrigerant flows out of compressor 1, it is divided into two paths:

[0176] First route: The refrigerant enters the vehicle's condenser 2 through an external pipeline. The refrigerant releases heat in the condenser 2 and is then blown into the vehicle by a fan to heat the interior. The refrigerant flowing out of the condenser 2 enters the first port 121 through an external pipeline, then passes through the first channel 101 and the third expansion valve 213 into the second channel 102.

[0177] Second route: After the high-temperature and high-pressure refrigerant flows out of the compressor 1, it enters the fourteenth channel 114 through the external pipeline and the eighth interface 128, then passes through the sixth solenoid valve 206 to enter the twelfth channel 112, then passes through the sixth expansion valve 216 to enter the eleventh channel 111, and then passes through the sixth interface 126 and the external pipeline to enter the second connection end 62 of the battery pack heat exchanger 6. After entering the battery pack heat exchanger 6, the refrigerant releases heat to heat the batteries, thereby achieving battery heating. It then flows out from the first connection end 61 of the battery pack heat exchanger 6, passes through the external pipeline and the seventh interface 127 to enter the thirteenth channel 113, passes through the fifth expansion valve 215 to enter the fifteenth channel 115, and then passes through the second one-way valve 22 to enter the second channel 102;

[0178] The first refrigerant and the second refrigerant converge in the second channel 102, and then flow in from the first high-pressure port 401 (at this time the refrigerant only passes through the air-supplying enthalpy-increasing heat exchange mechanism 40, and no heat exchange is performed), and flows out from the second high-pressure port 402, enters the third channel 103, passes through the third solenoid valve 203, enters the fifth channel 105, enters the first end 501 of the heat exchanger 50, and after endothermic evaporation in the heat exchanger 50, flows out from the second end 502, enters the sixth channel 106, and then passes through the second solenoid valve 202 to enter the seventh channel 107, and finally enters the gas-liquid separator 60 through the third interface 123 and the external pipeline, and then returns to the compressor 1 through the external pipeline, forming the entire refrigerant cycle of air conditioning heating + battery heating (air-supplying enthalpy-increasing heat exchange mechanism 40 is not working) mode.

[0179] In some embodiments of the present application, the refrigerant heat exchange unit 10 can realize the air conditioning heating + battery heating (air supply enthalpy increase heat exchange mechanism 40 working) mode of the thermal management system, specifically as follows:

[0180] Air conditioning heating + battery heating (air supply enthalpy increase heat exchange mechanism 40 works):

[0181] The flow path of the refrigerant is as follows Figure 22 As shown, after the high-temperature and high-pressure refrigerant flows out of compressor 1, it is divided into two paths:

[0182] First route: The refrigerant enters the vehicle's condenser 2 through an external pipeline. The refrigerant releases heat in the condenser 2 and is then blown into the vehicle by a fan to heat the interior. The refrigerant flowing out of the condenser 2 enters the first port 121 through an external pipeline, then passes through the first channel 101 and the first solenoid valve 201 and enters the second channel 102.

[0183] Second route: After the high-temperature and high-pressure refrigerant flows out of the compressor 1, it enters the fourteenth channel 114 through the external pipeline and the eighth interface 128, then passes through the sixth solenoid valve 206 to enter the twelfth channel 112, then passes through the sixth expansion valve 216 to enter the eleventh channel 111, and then passes through the sixth interface 126 and the external pipeline to enter the second connection end 62 of the battery pack heat exchanger 6. After entering the battery pack heat exchanger 6, the refrigerant releases heat to heat the batteries, thereby achieving battery heating. It then flows out from the first connection end 61 of the battery pack heat exchanger 6, passes through the external pipeline and the seventh interface 127 to enter the thirteenth channel 113, passes through the seventh solenoid valve 207, the fourth one-way valve 24, the fifteenth channel 115, and the second one-way valve 22 to enter the second channel 102;

[0184] The first refrigerant and the second refrigerant converge in the second channel 102, then flow into the first high-pressure port 401 and out of the second high-pressure port 402. They then split into two paths, one of which flows through the third channel 103 and the first expansion valve 211 into the first low-pressure port 403, then passes through the internal channel of the air-supplying enthalpy-increasing heat exchange mechanism 40 and enters the second low-pressure port 404. After flowing out of the second low-pressure port 404, it flows into the second refrigerant flow channel 104, and then passes through the second interface 122 and the external pipeline to re-enter the compressor 1. The other path flows into the third channel 103, passes through the second expansion valve 212 and the fifth channel 105, and flows into the first end 501 of the heat exchanger 50. After absorbing heat and evaporating in the heat exchanger 50, it flows out from the second end 502, enters the sixth channel 106, passes through the second solenoid valve 202, enters the seventh channel 107, and then flows into the gas-liquid separator 60 through the third interface 123 and the external pipeline, and then flows back into the compressor 1 through the external pipeline, forming a complete refrigerant cycle of air conditioning heating + battery heating (the air replenishment and enthalpy increase heat exchange mechanism 40 is working).

[0185] refer to Figure 6 and Figure 7 In some embodiments of the present application, the first plate body 11 includes a first substrate 12 and a second substrate 13, and the first welding point 130 of the first substrate 12 is welded to the second welding point 131 of the second substrate 13, so that the first substrate 12 and the second substrate 13 are enclosed to form a plurality of channels.

[0186] refer to Figure 1 、 Figures 8-12The coolant heat exchange unit includes a second plate 300, a four-way valve 31 and a water pump 32; the coolant heat exchange unit 30 is provided with a sixteenth channel 301, a seventeenth channel 302 and an eighteenth channel 303, the second plate 300 is provided with a ninth interface 311 communicating with the sixteenth channel 301, the ninth interface 311 is used to communicate with the first end 501 of the heat exchanger 50, the sixteenth channel 301 is communicated with one end of the four-way valve 31, and the output end of the water pump 32 is communicated with the sixteenth channel 301; the second plate 300 is provided with a ninth interface 311 communicating with the seventeenth channel The tenth interface 312 is connected to 302, and the tenth interface 312 is used to communicate with the second end 502 of the heat exchanger 50. The seventeenth channel 302 is also connected to the other end of the four-way valve 31; the eighteenth channel 303 is connected to the input end of the water pump 32, and the second plate 300 is provided with an eleventh interface 313 connected to the eighteenth channel 303. The eleventh interface 313 is used to be connected to the water cooling pipe of the refrigerant heat exchange unit 10, and the four-way valve 31 is provided with a twelfth interface 314. The twelfth interface 314 is used to communicate with one end of the motor radiator 4.

[0187] In an embodiment of the present application, the coolant pipeline of the refrigerant heat exchange unit 10 and the heat dissipation module of the electronic control system is connected to the eleventh interface 313. The coolant enters the eighteenth channel 303 from the eleventh interface 313, enters the water pump from the input end of the water pump 32, and then enters the four-way valve 31 through the seventeenth channel 302. The coolant enters the coolant pipeline of the refrigerant heat exchange unit 10 and the heat dissipation module of the electronic control system from the twelfth interface 314, dissipates heat to the refrigerant heat exchange unit 10 and the heat dissipation module of the electronic control system, and realizes the circulation operation of the high-temperature heat dissipation mode.

[0188] In an embodiment of the present application, the coolant pipeline of the heat dissipation module of the electronic control system is connected to the eleventh interface 313. The coolant enters the eighteenth channel 303 from the eleventh interface 313, enters the water pump from the input end of the water pump 32, and then enters the four-way valve 31 through the seventeenth channel 302. It enters the heat exchanger 50 of the refrigerant heat exchange unit 10 through the seventeenth channel 302. In the heat exchanger 50, the coolant exchanges heat with the refrigerant in the refrigerant heat exchange unit 10, and then re-enters the four-way valve 31. Finally, it enters the coolant heat exchange unit 10 and the coolant pipeline of the heat dissipation module of the electronic control system through the thirteenth interface 315, thereby realizing the circulation operation of the heat pump working mode below -10°C.

[0189] In some embodiments of the present application, the coolant heat exchange unit 30 can implement at least the following working modes:

[0190] 1. High temperature heat dissipation mode:

[0191] After cooling the corresponding components, the coolant in the coolant pipeline of the heat dissipation module of the electronic control system is connected to the eleventh interface 313 through the external pipeline, enters the eighteenth channel 303, enters the water pump from the input end of the water pump 32, and then enters the four-way valve 31 through the seventeenth channel 302, and enters the heat exchanger 50 of the refrigerant heat exchange unit 10 through the seventeenth channel 302. In the heat exchanger 50, the coolant exchanges heat with the refrigerant in the refrigerant heat exchange unit 10, and then re-enters the four-way valve 31. After entering the four-way valve 31, it passes through the internal flow channel of the four-way valve 31, passes through the thirteenth interface 315, and re-enters the coolant pipeline of the heat dissipation module of the electronic control system through the external pipeline, thereby realizing the coolant circulation operation in the high-temperature heat dissipation mode.

[0192] 2. Heat pump working mode below -10℃:

[0193] The coolant pipeline of the heat dissipation module of the electronic control system is connected to the eleventh interface 313. The coolant enters the eighteenth channel 303 from the eleventh interface 313, enters the water pump from the input end of the water pump 32, and then enters the four-way valve 31 through the seventeenth channel 302. It enters the heat exchanger 50 of the refrigerant heat exchange unit 10 through the seventeenth channel 302. In the heat exchanger 50, the coolant exchanges heat with the refrigerant in the refrigerant heat exchange unit 10, and then re-enters the four-way valve 31. Finally, it enters the refrigerant heat exchange unit 10 and the coolant pipeline of the heat dissipation module of the electronic control system through the thirteenth interface 315, realizing the circulation operation of the heat pump working mode below -10°C.

[0194] 3. Heat pump working mode between -10℃ and 10℃:

[0195] The coolant in the coolant pipeline of the heat dissipation module of the electronic control system is connected to the eleventh interface 313 through the external pipeline, enters the eighteenth channel 303, enters the water pump from the input end of the water pump 32, and then enters the four-way valve 31 through the seventeenth channel 302, and enters the heat exchanger 50 of the refrigerant heat exchange unit 10 through the sixteenth channel 301. In the heat exchanger 50, the coolant exchanges heat with the refrigerant in the refrigerant heat exchange unit 10, and re-enters the four-way valve 31 through the seventeenth channel 302. After entering the four-way valve 31, it passes through the internal flow channel of the four-way valve 31, passes through the thirteenth interface 315, and re-enters the coolant pipeline of the heat dissipation module of the electronic control system through the external pipeline, realizing the coolant circulation operation of the heat pump working mode between -10℃ and 10℃.

[0196] 4. Heat absorption and heat dissipation working mode:

[0197] The coolant in the coolant pipeline of the heat dissipation module of the electronic control system is connected to the eleventh interface 313 through an external pipeline, enters the eighteenth channel 303, enters the water pump from the input end of the water pump 32, then enters the four-way valve 31 through the seventeenth channel 302, enters the heat exchanger 50 of the refrigerant heat exchange unit 10 through the sixteenth channel 301, and in the heat exchanger 50, the coolant exchanges heat with the refrigerant in the refrigerant heat exchange unit 10, re-enters the four-way valve 31 through the seventeenth channel 302, and after entering the four-way valve 31, passes through the internal flow channel of the four-way valve 31, passes through the twelfth interface 314 and the thirteenth interface 315, and re-enters the coolant pipeline of the heat dissipation module of the electronic control system through the external pipeline, thereby realizing the coolant circulation operation in the heat absorption and heat dissipation working modes.

[0198] refer to Figure 1 and Figure 8 In some embodiments of the present application, the coolant heat exchange unit 30 also includes a sensor 33 and a water tank 34. The sixteenth channel 301 is connected to the sensor 33, and the sensor 33 is used to sense the temperature of the coolant in the coolant heat exchange unit 30; the water tank 34 is connected to the eighteenth channel 303 to provide coolant to the coolant heat exchange unit 30.

[0199] In some embodiments of the present application, a thermal management system is further provided, comprising the thermal management integrated module in any one of the above embodiments.

[0200] In the embodiment of the present application, the refrigerant heat exchange unit 10 is provided with a plurality of refrigerant flow channels, the air-supplying and enthalpy-increasing heat exchange mechanism 40 is installed in the refrigerant heat exchange unit 10 and is connected to the refrigerant flow channels, and is used to supplement air and increase enthalpy of the refrigerant flowing through; the coolant heat exchange unit 30 is arranged opposite to the refrigerant heat exchange unit 10; the heat exchanger 50 is connected to both the refrigerant flow channels and the coolant heat exchange unit 30, and is used to exchange heat between the refrigerant heat exchange unit 10 and the coolant heat exchange unit 30. In this way, on the one hand, by integrating the refrigerant heat exchange unit 10, the air-supplying and enthalpy-increasing heat exchange mechanism 40, the coolant heat exchange unit 30 and the heat exchanger 50 into the thermal management integrated module, the degree of integration is improved, and it is convenient to simplify installation and layout; on the other hand, the air-supplying and enthalpy-increasing heat exchange mechanism 40 can effectively reduce the discharge temperature of the compressor, reduce losses, thereby increasing the life of the compressor and facilitating the application of new refrigerants; in addition, the heat exchange capacity of the thermal management integrated module is increased, and the performance of the thermal management integrated module is improved.

[0201] In some embodiments of the present application, a vehicle is further provided, comprising the above-mentioned thermal management integrated module, or the thermal management integrated module in any one of the above-mentioned embodiments.

[0202] In the embodiment of the present application, the refrigerant heat exchange unit 10 is provided with a plurality of refrigerant flow channels, the air-supplying and enthalpy-increasing heat exchange mechanism 40 is installed in the refrigerant heat exchange unit 10 and is connected to the refrigerant flow channels, and is used to supplement air and increase enthalpy of the refrigerant flowing through; the coolant heat exchange unit 30 is arranged opposite to the refrigerant heat exchange unit 10; the heat exchanger 50 is connected to both the refrigerant flow channels and the coolant heat exchange unit 30, and is used to exchange heat between the refrigerant heat exchange unit 10 and the coolant heat exchange unit 30. In this way, on the one hand, by integrating the refrigerant heat exchange unit 10, the air-supplying and enthalpy-increasing heat exchange mechanism 40, the coolant heat exchange unit 30 and the heat exchanger 50 into the thermal management integrated module, the degree of integration is improved, and it is convenient to simplify installation and layout; on the other hand, the air-supplying and enthalpy-increasing heat exchange mechanism 40 can effectively reduce the discharge temperature of the compressor, reduce losses, thereby increasing the life of the compressor and facilitating the application of new refrigerants; in addition, the heat exchange capacity of the thermal management integrated module is increased, and the performance of the thermal management integrated module is improved.

[0203] refer to Figure 13 and Figure 14 In a specific application, the vehicle further includes a motor radiator 4 ; the motor radiator 4 in the vehicle is connected to the coolant heat exchange unit 30 for cooling the motor in the vehicle.

[0204] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0205] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A thermal management integrated module, characterized in that: include: A refrigerant heat exchange unit (10), wherein the refrigerant heat exchange unit (10) is provided with a plurality of refrigerant flow channels; An air-supplementing and enthalpy-increasing heat exchange mechanism (40), the air-supplementing and enthalpy-increasing heat exchange mechanism (40) being installed in the refrigerant heat exchange unit (10) and being in communication with the refrigerant flow channel, for performing air-supplementing and enthalpy-increasing on the refrigerant flowing therethrough; a coolant heat exchange unit (30), the coolant heat exchange unit (30) being arranged opposite to the refrigerant heat exchange unit (10); A heat exchanger (50) is connected to the refrigerant flow channel and the coolant heat exchange unit (30), and is used to enable the refrigerant heat exchange unit (10) to exchange heat with the coolant heat exchange unit (30).

2. The thermal management integrated module according to claim 1, characterized in that: The refrigerant heat exchange unit (10) includes a first plate body (11), the refrigerant flow channel is provided in the first plate body (11), and the refrigerant flow channel includes a first refrigerant flow channel, a second refrigerant flow channel (104), and a third refrigerant flow channel; One end of the first refrigerant flow channel is suitable for communicating with the in-vehicle condenser (2), and the other end is connected to the first high-pressure port (401) of the air-supplying enthalpy-increasing heat exchange mechanism (40); one end of the second refrigerant flow channel (104) is connected to the second low-pressure port (404) of the air-supplying enthalpy-increasing heat exchange mechanism (40), and the other end is suitable for communicating with the compressor (1); one end of the third refrigerant flow channel is connected to the second high-pressure port (402) of the air-supplying enthalpy-increasing heat exchange mechanism (40), and the other end is connected to the heat exchanger (50).

3. The thermal management integrated module according to claim 2, characterized in that: The refrigerant heat exchange unit (10) further includes a valve assembly (20), the valve assembly (20) being arranged on the first plate body (11), the valve assembly (20) including a first solenoid valve (201), a first channel (101) and a second channel (102) being provided in the first plate body (11), the first channel (101) being connected to the second channel (102) via the first solenoid valve (201) to form the first refrigerant flow channel; the first channel (101) is suitable for being connected to the in-vehicle condenser (2), and the second channel (102) is connected to the first high-pressure port (401) of the air-supplying enthalpy-increasing heat exchange mechanism (40).

4. The thermal management integrated module according to claim 3, characterized in that: The third refrigerant flow channel includes a third channel (103) and a fifth channel (105), and the valve assembly (20) further includes a second expansion valve (212). The third channel (103) is connected to the second high-pressure port (402), and the fifth channel (105) is connected to the heat exchanger (50). The third channel (103) is connected to the fifth channel (105) through the second expansion valve (212).

5. The thermal management integrated module according to claim 4, characterized in that: The valve assembly (20) further comprises a third solenoid valve (203), and the third channel (103) is connected to the fifth channel (105) via the third solenoid valve (203).

6. The thermal management integrated module according to claim 3, characterized in that: The valve assembly (20) further includes a third expansion valve (213), and the first channel (101) is connected to the second channel (102) through the third expansion valve (213) to form the first refrigerant flow channel.

7. The thermal management integrated module according to claim 6, characterized in that: The first channel (101) is connected to the heat exchanger (50) through the first solenoid valve (201); the valve assembly (20) further includes a fourth solenoid valve (204), and the first channel (101) is connected to the heat exchanger (50) through the fourth solenoid valve (204) and the third expansion valve (213) in sequence.

8. The thermal management integrated module according to claim 3, characterized in that: The valve assembly further comprises a first expansion valve (211); the first low-pressure port (403) of the air-supplementing enthalpy-increasing heat exchange mechanism (40) is connected to the second high-pressure port (402) via the first expansion valve (211).

9. The thermal management integrated module according to claim 8, characterized in that: The first low-pressure port (403) of the air-supplementing enthalpy-increasing heat exchange mechanism (40) is connected to the first refrigerant flow channel through the first expansion valve (211).

10. The thermal management integrated module according to any one of claims 3 to 8, characterized in that: The refrigerant flow channel also includes a fourth refrigerant flow channel; the third refrigerant flow channel is connected to the first end (501) of the heat exchanger (50), the fourth refrigerant flow channel is connected to the second end (502) of the heat exchanger (50), and the fourth refrigerant flow channel is also used to connect to the gas-liquid separator (60).

11. The thermal management integrated module according to claim 10, characterized in that: The fourth refrigerant flow channel includes a sixth channel (106) and a seventh channel (107), and the valve assembly (20) further includes a third one-way valve (23) and a second solenoid valve (202); The sixth channel (106) is in communication with the second end (502), and the sixth channel (106) is adapted to be in communication with the off-vehicle heat exchanger (3) via the third one-way valve (23); the seventh channel (107) is in communication with the sixth channel (106) via the second solenoid valve (202), and the seventh channel (107) is adapted to be in communication with the gas-liquid separator (60).

12. The thermal management integrated module according to claim 2, characterized in that: The refrigerant heat exchange unit (10) includes a first plate (11) and a valve assembly (20), wherein the valve assembly (20) is arranged on the first plate (11), the refrigerant flow channel further includes an eighth channel (108) and a fourth refrigerant flow channel, the fourth refrigerant flow channel includes a sixth channel (106), and the valve assembly (20) further includes a fourth solenoid valve (204); The first refrigerant flow channel includes a second channel (102), the eighth channel (108) is connected to the second channel (102) through the fourth solenoid valve (204), the eighth channel (108) is used to connect to one end of the off-vehicle heat exchanger (3); the sixth channel (106) is used to connect to the other end of the off-vehicle heat exchanger (3).

13. The thermal management integrated module according to claim 11, characterized in that: The valve assembly further comprises a fourth expansion valve (214), wherein the fourth expansion valve (214) is used to connect the sixth channel (106) and the evaporator (5).

14. The thermal management integrated module according to claim 11, characterized in that: The refrigerant flow channel also includes a fourth refrigerant flow channel, a fifth refrigerant flow channel and a sixth refrigerant flow channel. The fourth refrigerant flow channel includes a sixth channel (106) and a seventh channel (107). One end of the fifth refrigerant flow channel is connected to the sixth channel (106), and the other end is suitable for connecting to the first connection end (61) of the battery pack heat exchanger (6). One end of the sixth refrigerant flow channel is suitable for connecting to the second connection end (62) of the battery pack heat exchanger (6), and the other end is connected to the seventh channel (107).

15. The thermal management integrated module according to claim 14, characterized in that: The fifth refrigerant flow channel includes a ninth channel (109) and a thirteenth channel (113), and the valve assembly (20) includes a first one-way valve (21) and a fifth expansion valve (215); The ninth channel (109) is connected to the sixth channel (106) through the first one-way valve (21), the thirteenth channel (113) is connected to the ninth channel (109) through the fifth expansion valve (215), and the thirteenth channel (113) is suitable for connecting to the first connection end (61) of the battery pack heat exchanger (6).

16. The thermal management integrated module according to claim 15, characterized in that: The fifth refrigerant flow channel further includes a fifteenth channel (115), and the valve assembly (20) further includes a seventh solenoid valve (207). The fifteenth channel (115) is connected to the thirteenth channel (113) through the seventh solenoid valve (207).

17. The thermal management integrated module according to claim 14, characterized in that: The sixth refrigerant flow channel includes an eleventh channel (111) and a twelfth channel (112), and the valve assembly (20) includes a fifth solenoid valve (205) and a sixth expansion valve (216); The eleventh channel (111) is suitable for connecting to the second connection end (62) of the battery pack heat exchanger (6); the twelfth channel (112) is connected to the eleventh channel (111) through the sixth expansion valve (216); and the seventh channel (107) is connected to the twelfth channel (112) through the fifth solenoid valve (205).

18. The thermal management integrated module according to claim 17, characterized in that: The sixth refrigerant flow channel also includes a fourteenth channel (114), the valve assembly (20) includes a sixth solenoid valve (206), the fourteenth channel (114) is suitable for communicating with the compressor (1), and the fourteenth channel (114) is connected to the twelfth channel (112) through the sixth solenoid valve (206).

19. The thermal management integrated module according to claim 16, wherein: The valve assembly (20) further includes a fourth one-way valve (24), and the fifteenth channel (115) is also connected to the first refrigerant flow channel through the fourth one-way valve (24).

20. The thermal management integrated module according to claim 16, wherein: The valve assembly (20) further includes a second one-way valve (22), which is arranged between the seventh solenoid valve (207) and the fifteenth channel (115), and the second one-way valve (22) is connected to the first refrigerant flow channel.

21. The thermal management integrated module according to claim 1, characterized in that: The refrigerant heat exchange unit (10) includes a first plate (11), and the coolant heat exchange unit includes a second plate (300), a four-way valve (31) and a water pump (32); The coolant heat exchange unit (30) is provided with a sixteenth channel (301), a seventeenth channel (302) and an eighteenth channel (303); the second plate (300) is provided with a ninth interface (311) in communication with the sixteenth channel (301); the ninth interface (311) is used to communicate with the first end (501) of the heat exchanger (50); the sixteenth channel (301) is in communication with one end of the four-way valve (31); and the output end of the water pump (32) is in communication with the sixteenth channel (301); The second plate (300) is arranged opposite to the first plate (11) and is provided with a tenth interface (312) communicating with the seventeenth channel (302), the tenth interface (312) being used to communicate with the second end (502) of the heat exchanger (50), and the seventeenth channel (302) is also communicated with the other end of the four-way valve (31); The eighteenth channel (303) is communicated with the input end of the water pump (32); the second plate (300) is provided with an eleventh interface (313) communicated with the eighteenth channel (303); the eleventh interface (313) is used to be connected to the water cooling pipe of the refrigerant heat exchange unit (10); the four-way valve (31) is provided with a twelfth interface (314); the twelfth interface (314) is used to be communicated with one end of the motor radiator.

22. The thermal management integrated module according to claim 21, characterized in that: The four-way valve (31) is provided with a thirteenth interface (315), and the thirteenth interface (315) is used to communicate with the other end of the motor radiator.

23. A thermal management system, characterized in that: include: The thermal management integrated module according to any one of claims 1 to 22.

24. A vehicle, characterized in that: Includes the thermal management system as claimed in claim 23, or includes the thermal management integrated module as claimed in any one of claims 1-22.

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