Thermal management system for vehicle

Abstract

The utility model belongs to the technical field of thermal management systems, and discloses a thermal management system for a vehicle. The thermal management system for the vehicle comprises a compressor, a first heat exchanger, a water-cooling condenser, a second heat exchanger, a battery cooler, a throttling valve and an integrated valve terminal. The integrated valve terminal comprises a valve assembly and a flow channel set, and the flow channel set is used for communicating valves in the valve assembly and communicating the valves in the valve assembly with an inlet or an outlet of the integrated valve terminal. The valve assembly and the flow channel set are integrated, the flow direction of refrigerants is controlled through on-off of the valve assembly, and different refrigerant circulation loops are formed to achieve different functions such as single passenger compartment refrigeration, single battery refrigeration, simultaneous refrigeration of a passenger compartment and a battery and passenger compartment heating. The thermal management system for the vehicle is diversified in function and high in integration level; and the space utilization rate and the valve assembly rate are high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a thermal management system technical field especially relates to a vehicle thermal management system. BACKGROUND

[0002] With the development of new energy vehicles, the requirements for new energy vehicle air conditioners are getting higher and higher. Due to the development of battery technology and the short board of endurance mileage, the energy saving and high efficiency of the automobile air conditioning system become the primary consideration. The heat pump air conditioner can take into account the heating effect and endurance mileage of new energy vehicles and is widely used. In order to increase the functional diversity of the heat pump system, such as refrigeration, heating, etc., a variety of valve control is required to change the circuit, such as solenoid valve, stop valve and expansion valve, etc. However, the more valves in the system, the more connecting pipelines, the more unfavorable for space layout and vehicle assembly, and thus leading to low space utilization and low assembly efficiency.

[0003] Therefore, it is urgent to provide a vehicle thermal management system to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a vehicle thermal management system, which is diversified in function, high in integration, high in space utilization and high in valve assembly rate.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A vehicle thermal management system, comprising a compressor, a first heat exchanger, a water-cooled condenser, a second heat exchanger, a battery cooler, a throttling valve and an integrated valve island, the integrated valve island comprising a valve assembly and a flow channel group, the flow channel group being used for the communication between each valve in the valve assembly and the communication between each valve in the valve assembly and the inlet or outlet of the integrated valve island, the valve assembly and the flow channel group being integrally arranged, and the flow direction of the refrigerant being controlled by the on-off control of the valve assembly, wherein:

[0007] When single-occupant cabin refrigeration is performed, the refrigerant flows through the first heat exchanger, the integrated valve island, the water-cooled condenser, the integrated valve island, the throttling valve and the second heat exchanger in sequence from the compressor, and the refrigerant returns to the compressor from the second heat exchanger to circulate;

[0008] When single-battery refrigeration is performed, the refrigerant flows through the first heat exchanger, the integrated valve island, the water-cooled condenser, the integrated valve island and the battery cooler in sequence from the compressor, and the refrigerant returns to the compressor from the battery cooler to circulate;

[0009] When the passenger cabin and the battery are cooled simultaneously, the refrigerant flows through the first heat exchanger, the integrated valve island, the water-cooled condenser and the integrated valve island in sequence from the compressor, and the refrigerant is divided into two parts in the integrated valve island, one part flows through the throttling valve and the second heat exchanger in sequence and returns to the compressor, and the other part flows through the battery cooler and returns to the compressor, and the cycle is repeated.

[0010] When the passenger cabin is heated, the refrigerant flows through the first heat exchanger, the integrated valve island and the battery cooler in sequence from the compressor, and the refrigerant returns to the compressor from the battery cooler, and the cycle is repeated.

[0011] As an optional technical solution of the vehicle thermal management system, the valve assembly includes a first electromagnetic valve, a second electromagnetic valve, a first check valve and an electronic expansion valve, the first electromagnetic valve, the water-cooled condenser and the first check valve are connected in series and connected in parallel with the second electromagnetic valve, and the first electromagnetic valve is located upstream of the first check valve, and the electronic expansion valve is connected in series with the first check valve and the second electromagnetic valve, wherein:

[0012] When the single passenger cabin is cooled, the first electromagnetic valve is opened, the second electromagnetic valve is closed, the electronic expansion valve is closed, the throttling valve is opened, the refrigerant flows through the first heat exchanger, the first electromagnetic valve, the water-cooled condenser, the first check valve, the throttling valve and the second heat exchanger in sequence from the compressor, and the refrigerant returns to the compressor from the second heat exchanger, and the cycle is repeated.

[0013] When the single battery is cooled, the first electromagnetic valve is opened, the second electromagnetic valve is closed, the electronic expansion valve is opened, the throttling valve is closed, the refrigerant flows through the first heat exchanger, the first electromagnetic valve, the water-cooled condenser, the first check valve, the electronic expansion valve and the battery cooler in sequence from the compressor, and the refrigerant returns to the compressor from the battery cooler, and the cycle is repeated.

[0014] When the passenger cabin and the battery are cooled simultaneously, the first electromagnetic valve is opened, the second electromagnetic valve is closed, the electronic expansion valve is opened, and the throttling valve is opened, the refrigerant flows through the first heat exchanger, the first electromagnetic valve and the water-cooled condenser in sequence from the compressor, and the refrigerant is divided into two parts from the first check valve, one part flows through the throttling valve and the second heat exchanger in sequence and returns to the compressor, and the other part flows through the electronic expansion valve and the battery cooler in sequence and returns to the compressor, and the cycle is repeated.

[0015] When the passenger compartment is heated, the first electromagnetic valve is closed, the second electromagnetic valve is opened, the electronic expansion valve is opened, the throttle valve is closed, the refrigerant from the compressor flows through the first heat exchanger, the second electromagnetic valve, the electronic expansion valve and the battery cooler in turn, and the refrigerant from the battery cooler returns to the compressor to circulate.

[0016] As an optional technical solution of the vehicle thermal management system, in the valve assembly, the first electromagnetic valve, the second electromagnetic valve and the first one-way valve are arranged in the first direction in turn, the electronic expansion valve and the second electromagnetic valve are arranged in the second direction in turn, and the integrated valve island further comprises a first inlet, a second inlet, a first outlet, a second outlet and a third outlet; the first inlet is located at one end of the first electromagnetic valve close to the electronic expansion valve in the second direction, the valve body inlet of the first electromagnetic valve and the valve body inlet of the second electromagnetic valve are communicated with the first inlet; the second inlet is located at one end of the first one-way valve away from the second electromagnetic valve in the first direction, and is communicated with the valve body inlet of the first one-way valve; the first outlet is located at one end of the first electromagnetic valve in the third direction, and is communicated with the valve body outlet of the first electromagnetic valve; the second outlet is located at one end of the electronic expansion valve away from the second electromagnetic valve in the second direction, and is communicated with the valve body outlet of the electronic expansion valve; the third outlet is located at one end of the electronic expansion valve in the third direction, and is communicated with the valve body outlet of the first one-way valve and the valve body outlet of the second electromagnetic valve respectively.

[0017] The first direction, the second direction and the third direction are perpendicular to each other.

[0018] As an optional technical solution of the vehicle thermal management system, the flow channel group comprises a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, a fifth flow channel, a sixth flow channel and a seventh flow channel; the first flow channel connects the valve body outlet of the first electromagnetic valve and the first outlet; the second flow channel connects the second inlet and the valve body inlet of the first one-way valve; the third flow channel connects the valve body inlet of the first electromagnetic valve and the valve body inlet of the second electromagnetic valve; the fourth flow channel connects the valve body outlet of the second electromagnetic valve and the valve body outlet of the first one-way valve; the fifth flow channel connects the fourth flow channel and the valve body inlet of the electronic expansion valve; the sixth flow channel connects the fourth flow channel and the second outlet; and the seventh flow channel connects the valve body outlet of the electronic expansion valve and the third outlet.

[0019] As an optional technical solution of the vehicle thermal management system, the first electromagnetic valve is a normally open valve.

[0020] As an optional technical solution of the vehicle thermal management system, the second electromagnetic valve is a normally closed valve.

[0021] As an optional technical solution of the vehicle thermal management system, the integrated valve island further comprises a bottom plate, and the valve assembly and the flow channel group are integrally arranged on the bottom plate.

[0022] As an optional technical solution of the vehicle thermal management system, the vehicle thermal management system further comprises a second check valve, the second check valve and the second heat exchanger are connected in series, the second check valve is arranged downstream of the second heat exchanger, and the second check valve is connected in parallel with the battery cooler.

[0023] As an optional technical solution of the vehicle thermal management system, the throttle valve is integrally arranged with the second heat exchanger.

[0024] As an optional technical solution of the vehicle thermal management system, the first heat exchanger is provided with a fan.

[0025] The beneficial effects of the utility model are as follows:

[0026] The vehicle thermal management system provided by the utility model comprises a compressor, a first heat exchanger, a water-cooled condenser, a second heat exchanger, a battery cooler, a throttle valve and an integrated valve island. The integrated valve island comprises a valve assembly and a flow channel group, the flow channel group is used for the communication between valve components in the valve assembly and the communication between the valve components in the valve assembly and the inlet or outlet of the integrated valve island, the flow direction of refrigerant is controlled through the on-off control of the valve assembly, different refrigerant circulation loops are formed to realize different functions, for example, single-occupant cabin refrigeration, single-battery refrigeration, simultaneous refrigeration of the occupant cabin and the battery and occupant cabin heating are realized, and the functions are diversified. A plurality of refrigerant circulation loops are centrally arranged, the integrated degree is high, and the working efficiency is high. The valve assembly and the flow channel group are integrally arranged, the space arrangement of the valve assembly connected with branches and the assembly of the valve components in the valve assembly are solved, and the space utilization and the assembly efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a principle diagram of the vehicle thermal management system provided by the utility model embodiment;

[0028] Figure 2 is a first structure schematic view of the integrated valve island in the vehicle thermal management system provided by the utility model embodiment;

[0029] Figure 3 is a second structure schematic view of the integrated valve island in the vehicle thermal management system provided by the utility model embodiment;

[0030] Figure 4 is a first sectional view of the integrated valve island in the vehicle thermal management system provided by the utility model embodiment;

[0031] Figure 5It is the second sectional view of the integrated valve island provided by the utility model implementation.

[0032] In the drawings:

[0033] 100, integrated valve island; 111, first electromagnetic valve; 112, second electromagnetic valve; 113, first check valve; 114, electronic expansion valve; 115, first inlet; 116, second inlet; 117, first outlet; 118, second outlet; 119, third outlet; 121, first flow channel; 122, second flow channel; 123, third flow channel; 124, fourth flow channel; 125, fifth flow channel; 126, sixth flow channel; 127, seventh flow channel; 200, compressor; 300, first heat exchanger; 400, water-cooled condenser; 500, second heat exchanger; 600, battery cooler; 700, throttle valve; 800, second check valve. DETAILED DESCRIPTION

[0034] The utility model will be further explained in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0035] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] The utility model provides a kind of vehicle thermal management system, the vehicle thermal management system function diversification, integration degree is high;Space utilization is high, valve assembly rate is high.

[0039] Specific as Figure 1 As shown in the drawing, the vehicle thermal management system includes compressor 200, first heat exchanger 300, water-cooled condenser 400, second heat exchanger 500, battery cooler 600, throttling valve 700 and integrated valve island 100. Integrated valve island 100 includes valve assembly and flow channel group, and the flow channel group is used for the communication between each valve in the valve assembly and the communication between each valve in the valve assembly and the inlet or outlet of integrated valve island 100. The valve assembly and the flow channel group are integrally arranged, and the flow direction of the refrigerant is controlled by the on-off control of the valve assembly, wherein: when the single passenger compartment is refrigerated, the refrigerant flows from the compressor 200 to the first heat exchanger 300, the integrated valve island 100, the water-cooled condenser 400, the integrated valve island 100, the throttling valve 700 and the second heat exchanger 500 in turn, and the refrigerant returns to the compressor 200 from the second heat exchanger 500 to circulate; when the single battery is refrigerated, the refrigerant flows from the compressor 200 to the first heat exchanger 300, the integrated valve island 100, the water-cooled condenser 400, the integrated valve island 100 and the battery cooler 600 in turn, and the refrigerant returns to the compressor 200 from the battery cooler 600 to circulate; when the passenger compartment and the battery are refrigerated at the same time, the refrigerant flows from the compressor 200 to the first heat exchanger 300, the integrated valve island 100, the water-cooled condenser 400 and the integrated valve island 100 in turn, and the refrigerant is divided into two parts in the integrated valve island 100, one part flows through the throttling valve 700 and the second heat exchanger 500 to return to the compressor 200, and the other part flows through the battery cooler 600 to return to the compressor 200 to circulate; when the passenger compartment is heated, the refrigerant flows from the compressor 200 to the first heat exchanger 300, the integrated valve island 100 and the battery cooler 600 in turn, and the refrigerant returns to the compressor 200 from the battery cooler 600 to circulate.

[0040] Based on the above design, the integrated valve island 100 comprises a valve assembly and a flow channel group, the flow channel group is used for communication between each valve in the valve assembly and between each valve in the valve assembly and the inlet or outlet of the integrated valve island 100, and the flow direction of the refrigerant is controlled by the on-off of the valve assembly. On the one hand, the integrated valve island 100 can form different refrigerant circulation loops to realize different functions of the vehicle thermal management system, such as realizing single-cabin refrigeration, single-battery refrigeration, simultaneous refrigeration of the cabin and the battery, and cabin heating function diversification, respectively; on the other hand, the integrated valve island 100 can be arranged in multiple refrigerant circulation loops, which has high integration and high working efficiency. Specifically, when single-cabin refrigeration is performed, the compressor 200 is started, the refrigerant enters the compressor 200 to be compressed to form high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 200, enters the integrated valve island 100 through the first heat exchanger 300 (at this time, the first heat exchanger 300 does not work and only acts as a pipeline), and after passing through the integrated valve island 100, the high-temperature and high-pressure gaseous refrigerant enters the water-cooled condenser 400 to be cooled to form high-temperature and high-pressure liquid refrigerant, the high-temperature and high-pressure liquid refrigerant flows through the integrated valve island 100 again, is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and lowWhen the passenger cabin and the battery are cooled simultaneously, the compressor 200 is started, and the refrigerant enters the compressor 200 to be compressed to form high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 200, enters the integrated valve island 100 through the first heat exchanger 300 (at this time, the first heat exchanger 300 does not work and only serves as a pipeline), and then enters the water-cooled condenser 400 to be cooled to form high-temperature and high-pressure liquid refrigerant. The high-temperature and high-pressure liquid refrigerant flows through the integrated valve island 100 again, and is divided into two parts in the integrated valve island 100. One part of the high-temperature and high-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant after being discharged from the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is evaporated and absorbs heat (to cool the passenger cabin) by the second heat exchanger 500 to form gaseous refrigerant. The gaseous refrigerant is discharged from the second heat exchanger 500 and returns to the compressor 200. The other part of the high-temperature and high-pressure liquid refrigerant is throttled to form low-temperature and low-pressure liquid refrigerant in the integrated valve island 100, and then the low-temperature and low-pressure liquid refrigerant is evaporated and absorbs heat (to cool the battery) by the battery cooler 600 to form gaseous refrigerant. The gaseous refrigerant is discharged from the battery cooler 600 and returns to the compressor 200. The above processes are sequentially repeated to realize the simultaneous cooling of the passenger cabin and the battery. When the passenger cabin is heated, the compressor 200 is started, and the refrigerant enters the compressor 200 to be compressed to form high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 200, enters the integrated valve island 100, and is throttled to form low-temperature and low-pressure liquid refrigerant. Then, the low-temperature and low-pressure liquid refrigerant is evaporated and absorbs heat by the battery cooler 600 to form gaseous refrigerant. The gaseous refrigerant is discharged from the battery cooler 600 and returns to the compressor 200. The above processes are sequentially repeated to realize the heating of the passenger cabin.

[0041] In addition, the valve assembly and the flow channel group are integrally arranged, which solves the problems of space arrangement of the valve assembly connecting various branches and assembly of various valve components in the valve assembly, improves space utilization and assembly efficiency.

[0042] It should be noted that the vehicle thermal management system uses the water-cooled condenser 400 instead of the outdoor condenser, which can realize condensation and heat dissipation of the refrigerant and make the system structure more compact.

[0043] Optionally, the integrated valve island 100 further comprises a bottom plate, and the valve assembly and the flow channel group are integrally arranged on the bottom plate, so as to facilitate fixation of the valve assembly and the flow channel group.

[0044] Optionally, the above processes are sequentially repeated to realize the heating of the passenger cabin. Figure 1As shown, the valve assembly includes a first electromagnetic valve 111, a second electromagnetic valve 112, a first check valve 113, and an electronic expansion valve 114, the first electromagnetic valve 111, the water-cooled condenser 400, and the first check valve 113 are connected in series and then connected in parallel with the second electromagnetic valve 112, and the first electromagnetic valve 111 is located upstream of the first check valve 113, and the electronic expansion valve 114 is connected in series with the first check valve 113 and the second electromagnetic valve 112, respectively, wherein: when the single passenger cabin is refrigerated, the first electromagnetic valve 111 is opened, the second electromagnetic valve 112 is closed, the electronic expansion valve 114 is closed, and the throttle valve 700 is opened, and the refrigerant flows from the compressor 200 to the first heat exchanger 300, the first electromagnetic valve 111, the water-cooled condenser 400, the first check valve 113, the throttle valve 700, and the second heat exchanger 500 in turn, and the refrigerant returns to the compressor 200 from the second heat exchanger 500 to circulate; when the single battery is refrigerated, the first electromagnetic valve 111 is opened, the second electromagnetic valve 112 is closed, the electronic expansion valve 114 is opened, and the throttle valve 700 is closed, and the refrigerant flows from the compressor 200 to the first heat exchanger 300, the first electromagnetic valve 111, the water-cooled condenser 400, the first check valve 113, the electronic expansion valve 114, and the battery cooler 600 in turn, and the refrigerant returns to the compressor 200 from the battery cooler 600 to circulate; when the passenger cabin and the battery are refrigerated at the same time, the first electromagnetic valve 111 is opened, the second electromagnetic valve 112 is closed, the electronic expansion valve 114 is opened, and the throttle valve 700 is opened, and the refrigerant flows from the compressor 200 to the first heat exchanger 300, the first electromagnetic valve 111, and the water-cooled condenser 400 in turn, and the refrigerant is divided into two parts from the first check valve 113, one part flows from the throttle valve 700 and the second heat exchanger 500 to the compressor 200 in turn, and the other part flows from the electronic expansion valve 114 and the battery cooler 600 to the compressor 200 in turn to circulate; when the passenger cabin is heated, the first electromagnetic valve 111 is closed, the second electromagnetic valve 112 is opened, the electronic expansion valve 114 is opened, and the throttle valve 700 is closed, and the refrigerant flows from the compressor 200 to the first heat exchanger 300, the second electromagnetic valve 112, the electronic expansion valve 114, and the battery cooler 600 in turn, and the refrigerant returns to the compressor 200 from the battery cooler 600 to circulate.

[0045] In this embodiment, the first electromagnetic valve 111 is a normally open valve, and the second electromagnetic valve 112 is a normally closed valve. Both the normally open valve and the normally closed valve are prior art, and will not be described here.

[0046] Further, as Figure 2 and Figure 3As shown, in the valve assembly, the first electromagnetic valve 111, the second electromagnetic valve 112 and the first one-way valve 113 are arranged in sequence along a first direction, the electronic expansion valve 114 and the second electromagnetic valve 112 are arranged in sequence along a second direction, and the integrated valve island 100 further comprises a first inlet 115, a second inlet 116, a first outlet 117, a second outlet 118 and a third outlet 119; the first inlet 115 is located at one end of the first electromagnetic valve 111 close to the electronic expansion valve 114 along the second direction, and the valve body inlet of the first electromagnetic valve 111 and the valve body inlet of the second electromagnetic valve 112 are both communicated with the first inlet 115; the second inlet 116 is located at one end of the first one-way valve 113 away from the second electromagnetic valve 112 along the first direction, and is communicated with the valve body inlet of the first one-way valve 113; the first outlet 117 is located at one end of the first electromagnetic valve 111 along a third direction, and is communicated with the valve body outlet of the first electromagnetic valve 111; the second outlet 118 is located at one end of the electronic expansion valve 114 away from the second electromagnetic valve 112 along the second direction, and is communicated with the valve body outlet of the electronic expansion valve 114; the third outlet 119 is located at one end of the electronic expansion valve 114 along the third direction, and is communicated with the valve body outlet of the first one-way valve 113 and the valve body outlet of the second electromagnetic valve 112 respectively; the first direction (A direction in the figure), the second direction (B direction in the figure) and the third direction (C direction in the figure) are perpendicular to each other. The valve assembly not only integrates each valve in one body, but also reasonably arranges each valve of the integrated valve island 100 and the inlets and outlets of the integrated valve island 100, so that the structure of the integrated valve island 100 is more compact.

[0047] Further, as shown in the drawings, Figure 5 The flow channel group comprises a first flow channel 121, a second flow channel 122, a third flow channel 123, a fourth flow channel 124, a fifth flow channel 125, a sixth flow channel 126 and a seventh flow channel 127. The first flow channel 121 connects the valve body outlet of the first electromagnetic valve 111 and the first outlet 117; the second flow channel 122 connects the second inlet 116 and the valve body inlet of the first one-way valve 113; the third flow channel 123 connects the valve body inlet of the first electromagnetic valve 111 and the valve body inlet of the second electromagnetic valve 112; the fourth flow channel 124 connects the valve body outlet of the second electromagnetic valve 112 and the valve body outlet of the first one-way valve 113; the fifth flow channel 125 connects the fourth flow channel 124 and the valve body inlet of the electronic expansion valve 114; the sixth flow channel 126 connects the fourth flow channel 124 and the second outlet 118; and the seventh flow channel 127 connects the valve body outlet of the electronic expansion valve 114 and the third outlet 119.

[0048] Specifically, when the single passenger cabin is refrigerated, the refrigerant flows through the compressor 200 and the first heat exchanger 300 in sequence, then enters the integrated valve island 100 from the first inlet 115, passes through the valve body of the first electromagnetic valve 111 and the first flow channel 121 in the integrated valve island 100 in sequence, then exits the integrated valve island 100 from the first outlet 117 and enters the water-cooled condenser 400, then enters the integrated valve island 100 again from the second inlet 116 after exiting the water-cooled condenser 400, passes through the second flow channel 122, the first check valve 113, the fourth flow channel 124, the fifth flow channel 125 and the sixth flow channel 126 in the integrated valve island 100 in sequence, then exits the integrated valve island 100 from the second outlet 118, and finally flows through the second heat exchanger 500 back to the compressor 200 in sequence to circulate; when the single battery is refrigerated, the refrigerant flows through the compressor 200 and the first heat exchanger 300 in sequence, then enters the integrated valve island 100 from the first inlet 115, passes through the valve body of the first electromagnetic valve 111 and the first flow channel 121 in the integrated valve island 100 in sequence, then exits the integrated valve island 100 from the first outlet 117 and enters the water-cooled condenser 400, then enters the integrated valve island 100 again from the second inlet 116 after exiting the water-cooled condenser 400, passes through the second flow channel 122, the first check valve 113, the fourth flow channel 124, the fifth flow channel 125, the electronic expansion valve 114 and the seventh flow channel 127 in the integrated valve island 100 in sequence, then exits the integrated valve island 100 from the third outlet 119, and finally flows through the battery cooler 600 back to the compressor 200 in sequence to circulate; when the passenger cabin and the battery are refrigerated at the same time, the refrigerant flows through the compressor 200 and the first heat exchanger 300 in sequence, then enters the integrated valve island 100 from the first inlet 115, passes through the valve body of the first electromagnetic valve 111 and the first flow channel 121 in the integrated valve island 100 in sequence, then exits the integrated valve island 100 from the first outlet 117 and enters the water-cooled condenser 400, then enters the integrated valve island 100 again from the second inlet 116 after exiting the water-cooled condenser 400, passes through the second flow channel 122, the first check valve 113, the fourth flow channel 124 and the fifth flow channel 125 in the integrated valve island 100 in sequence, the refrigerant is divided into two parts in the fifth flow channel 125, one part enters the sixth flow channel 126, then exits the integrated valve island 100 from the second outlet 118, then flows through the throttle valve 700 and the second heat exchanger 500 back to the compressor 200 in sequence, and the other part flows through the electronic expansion valve 114 and the seventh flow channel 127 in sequence, then exits the integrated valve island 100 from the third outlet 119, and finally flows through the battery cooler 600 back to the compressor 200 to circulate.When the passenger cabin is heated, the refrigerant flows through the compressor 200 and the first heat exchanger 300 in turn, then enters the integrated valve island 100 from the first inlet 115, flows through the third flow channel 123, the second electromagnetic valve 112, the fourth flow channel 124, the fifth flow channel 125, the electronic expansion valve 114 and the seventh flow channel 127 in the integrated valve island 100 in turn, then exits the integrated valve island 100 from the second outlet 118, and finally returns to the compressor 200 through the battery cooler 600 to circulate.

[0049] Optionally, the vehicle thermal management system further comprises a second one-way valve 800, the second one-way valve 800 and the second heat exchanger 500 are connected in series, and the second one-way valve 800 is arranged downstream of the second heat exchanger 500, and the second one-way valve 800 is connected with the battery cooler 600 in parallel.

[0050] Optionally, the throttle valve 700 is integrally arranged with the second heat exchanger 500, further saving space.

[0051] Optionally, a fan is arranged at the first heat exchanger 300, and when the first heat exchanger 300 works, the fan works to promote heat exchange between the refrigerant in the first heat exchanger 300 and air, improving heat exchange efficiency.

[0052] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not limited to the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A vehicle thermal management system, characterized in that, The system includes a compressor (200), a first heat exchanger (300), a water-cooled condenser (400), a second heat exchanger (500), a battery cooler (600), a throttle valve (700), and an integrated valve island (100). The integrated valve island (100) includes a valve assembly and a flow channel assembly. The flow channel assembly is used for communication between the valves in the valve assembly and for communication between the valves in the valve assembly and the inlet or outlet of the integrated valve island (100). The valve assembly and the flow channel assembly are integrated into one unit. The flow direction of the refrigerant is controlled by opening and closing the valve assembly. When the single-occupant cabin is cooled, the refrigerant flows from the compressor (200) through the first heat exchanger (300), the integrated valve island (100), the water-cooled condenser (400), the integrated valve island (100), the throttle valve (700), and the second heat exchanger (500). The refrigerant then returns from the second heat exchanger (500) to the compressor (200), and the cycle continues. When the single battery is used for cooling, the refrigerant flows out of the compressor (200) and sequentially through the first heat exchanger (300), the integrated valve island (100), the water-cooled condenser (400), the integrated valve island (100), and the battery cooler (600). The refrigerant then flows out of the battery cooler (600) and returns to the compressor (200), thus circulating in this way. When the crew compartment and battery are cooled simultaneously, the refrigerant flows from the compressor (200) through the first heat exchanger (300), the integrated valve island (100), the water-cooled condenser (400), and the integrated valve island (100) in sequence. The refrigerant is divided into two parts in the integrated valve island (100). One part flows through the throttle valve (700) and the second heat exchanger (500) in sequence and returns to the compressor (200). The other part flows through the battery cooler (600) and returns to the compressor (200), and so on. When the crew compartment is heated, the refrigerant flows from the compressor (200) through the first heat exchanger (300), the integrated valve island (100) and the battery cooler (600) in sequence, and then flows from the battery cooler (600) back to the compressor (200), thus circulating.

2. The vehicle thermal management system according to claim 1, characterized in that, The valve assembly includes a first solenoid valve (111), a second solenoid valve (112), a first check valve (113), and an electronic expansion valve (114). The first solenoid valve (111), the water-cooled condenser (400), and the first check valve (113) are connected in series and then connected in parallel with the second solenoid valve (112). The first solenoid valve (111) is located upstream of the first check valve (113). The electronic expansion valve (114) is connected in series with both the first check valve (113) and the second solenoid valve (112). When the single-occupant cabin is cooled, the first solenoid valve (111) is open, the second solenoid valve (112) is closed, the electronic expansion valve (114) is closed, and the throttle valve (700) is open. The refrigerant flows from the compressor (200) through the first heat exchanger (300), the first solenoid valve (111), the water-cooled condenser (400), the first check valve (113), the throttle valve (700), and the second heat exchanger (500). The refrigerant then returns from the second heat exchanger (500) to the compressor (200), and the cycle continues. When the single battery is used for cooling, the first solenoid valve (111) is open, the second solenoid valve (112) is closed, the electronic expansion valve (114) is open, and the throttle valve (700) is closed. The refrigerant flows from the compressor (200) through the first heat exchanger (300), the first solenoid valve (111), the water-cooled condenser (400), the first check valve (113), the electronic expansion valve (114), and the battery cooler (600). The refrigerant then returns from the battery cooler (600) to the compressor (200), and the cycle continues. When the crew compartment and battery are cooled simultaneously, the first solenoid valve (111) opens, the second solenoid valve (112) closes, the electronic expansion valve (114) opens, and the throttle valve (700) opens. The refrigerant flows from the compressor (200) through the first heat exchanger (300), the first solenoid valve (111), and the water-cooled condenser (400) in sequence. The refrigerant flows from the first one-way valve (113) and is divided into two parts. One part flows through the throttle valve (700) and the second heat exchanger (500) in sequence and returns to the compressor (200). The other part flows through the electronic expansion valve (114) and the battery cooler (600) in sequence and returns to the compressor (200), and so on. When the crew compartment is heated, the first solenoid valve (111) is closed, the second solenoid valve (112) is open, the electronic expansion valve (114) is open, and the throttle valve (700) is closed. The refrigerant flows from the compressor (200) through the first heat exchanger (300), the second solenoid valve (112), the electronic expansion valve (114), and the battery cooler (600) in sequence. The refrigerant then returns from the battery cooler (600) to the compressor (200), and the cycle continues.

3. The vehicle thermal management system according to claim 2, characterized in that, In the valve assembly, the first solenoid valve (111), the second solenoid valve (112), and the first check valve (113) are arranged sequentially along a first direction, and the electronic expansion valve (114) and the second solenoid valve (112) are arranged at intervals along a second direction. The integrated valve island (100) further includes a first inlet (115), a second inlet (116), a first outlet (117), a second outlet (118), and a third outlet (119). The first inlet (115) is located at the end of the first solenoid valve (111) along the second direction near the electronic expansion valve (114). The valve body inlet of the first solenoid valve (111) and the valve body inlet of the second solenoid valve (112) are both connected to the first inlet (115). The second inlet (116) The first outlet (117) is located at one end of the first solenoid valve (111) along the first direction away from the second solenoid valve (112) and is connected to the valve body inlet of the first one-way valve (113); the first outlet (117) is located at one end of the first solenoid valve (111) along the third direction and is connected to the valve body outlet of the first solenoid valve (111); the second outlet (118) is located at one end of the electronic expansion valve (114) along the second direction away from the second solenoid valve (112) and is connected to the valve body outlet of the electronic expansion valve (114); the third outlet (119) is located at one end of the electronic expansion valve (114) along the third direction and is connected to the valve body outlet of the first one-way valve (113) and the valve body outlet of the second solenoid valve (112) respectively. The first direction, the second direction, and the third direction are perpendicular to each other.

4. The vehicle thermal management system according to claim 3, characterized in that, The flow channel group includes a first flow channel (121), a second flow channel (122), a third flow channel (123), a fourth flow channel (124), a fifth flow channel (125), a sixth flow channel (126), and a seventh flow channel (127); the first flow channel (121) connects the valve body outlet of the first solenoid valve (111) and the first outlet (117); the second flow channel (122) connects the second inlet (116) and the valve body inlet of the first check valve (113); the third flow channel (123) connects the valve body inlet of the first solenoid valve (111). The fourth flow channel (124) connects the valve body outlet of the second solenoid valve (112) and the valve body outlet of the first one-way valve (113); the fifth flow channel (125) connects the fourth flow channel (124) and the valve body inlet of the electronic expansion valve (114); the sixth flow channel (126) connects the fourth flow channel (124) and the second outlet (118); the seventh flow channel (127) connects the valve body outlet of the electronic expansion valve (114) and the third outlet (119).

5. The vehicle thermal management system according to claim 2, characterized in that, The first solenoid valve (111) is a normally open valve.

6. The vehicle thermal management system according to claim 2, characterized in that, The second solenoid valve (112) is a normally closed valve.

7. The vehicle thermal management system according to claim 1, characterized in that, The integrated valve island (100) also includes a base plate, on which the valve assembly and the flow channel assembly are integrated.

8. The vehicle thermal management system according to claim 1, characterized in that, The vehicle thermal management system further includes a second one-way valve (800), which is connected in series with the second heat exchanger (500) and is located downstream of the second heat exchanger (500). The second one-way valve (800) is connected in parallel with the battery cooler (600).

9. The vehicle thermal management system according to claim 1, characterized in that, The throttle valve (700) is integrated with the second heat exchanger (500).

10. The vehicle thermal management system according to claim 1, characterized in that, A fan is provided at the first heat exchanger (300).

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