Thermal management system and vehicle with same

Abstract

The utility model discloses a thermal management system and a vehicle with the thermal management system, the thermal management system comprises a compressor, a heat exchanger outside the vehicle and a heat exchanger inside the vehicle, the compressor, the heat exchanger outside the vehicle and the heat exchanger inside the vehicle are connected to form a refrigerant loop; the water storage tank module comprises a water storage tank and a water storage tank heat exchanger, the water storage tank heat exchanger is connected into the refrigerant loop, and the water storage tank heat exchanger exchanges heat with the water storage tank. According to the heat management system, waste heat in the heat management system can be stored through the water storage tank, heat can be released to the heat management system through the water storage tank, and the energy utilization rate is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a thermal management system and a vehicle with the same. Background Art

[0002] The thermal management system in the related art can usually perform heating and cooling for the vehicle interior. In some vehicles, such as heavy trucks, the motor has sufficient waste heat under high-speed conditions. The heat in the thermal management system can meet the heating needs of the vehicle interior while still having surplus waste heat. In other words, the heat in the thermal management system is sufficient. However, the thermal management system in the related art cannot store this part of the heat, which will cause energy waste when the motor has sufficient waste heat, resulting in high energy consumption. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a thermal management system that can use a water storage tank to store waste heat in the thermal management system and can use the water storage tank to release heat to the thermal management system, thereby achieving higher energy utilization.

[0004] The utility model also provides a vehicle with the thermal management system.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect embodiment of the utility model, a thermal management system is proposed, and the thermal management system includes: a compressor, an external heat exchanger and an internal heat exchanger, and the compressor, the external heat exchanger and the internal heat exchanger are connected to form a refrigerant circuit; a water tank module, and the water tank module includes a water tank and a water tank heat exchanger, and the water tank heat exchanger is connected to the refrigerant circuit, and the water tank heat exchanger exchanges heat with the water tank.

[0006] The thermal management system according to the embodiment of the utility model can utilize the water storage tank to store the waste heat in the thermal management system, and can utilize the water storage tank to release heat into the thermal management system, so that the energy utilization rate is higher.

[0007] According to some embodiments of the present utility model, the water tank heat exchanger includes a heat exchange pipe, which is connected to the refrigerant circuit and exchanges heat with the water tank.

[0008] According to some embodiments of the utility model, the thermal management system further includes: a four-way valve, which is respectively connected to the compressor, the external heat exchanger, the internal heat exchanger and the water tank heat exchanger to adjust the flow direction of the refrigerant in the refrigerant circuit and the water tank heat exchanger.

[0009] According to some embodiments of the present utility model, the refrigerant circuit includes: a summing branch, which is respectively connected to one end of the external heat exchanger, one end of the internal heat exchanger and one end of the water tank heat exchanger.

[0010] According to some embodiments of the present utility model, the in-vehicle heat exchanger includes: a passenger compartment heat exchanger, one end of which is connected to the aggregate branch, and the other end is connected to the four-way valve and the inlet or outlet of the compressor; a living compartment heat exchanger, one end of which is connected to the aggregate branch, and the other end is connected to the four-way valve.

[0011] According to some embodiments of the present invention, the passenger compartment heat exchanger includes: a first heat exchanger, one end of which is connected to the aggregate branch, and the other end is connected to the inlet of the compressor; a second heat exchanger, one end of which is connected to the aggregate branch, and the other end is connected to the outlet of the compressor.

[0012] According to some embodiments of the present utility model, the thermal management system also includes: a first electronic expansion valve, which is connected between the one end of the first heat exchanger and the aggregation branch; a second electronic expansion valve, which is connected between the one end of the second heat exchanger and the aggregation branch; and a third electronic expansion valve, which is connected between the one end of the living cabin heat exchanger and the aggregation branch.

[0013] According to some embodiments of the utility model, the four-way valve includes: a first interface, which is connected to the outlet of the compressor; a second interface, which is connected to one end of the external heat exchanger; a third interface, which is respectively connected to the inlet of the compressor; and a fourth interface, which is connected to the living cabin heat exchanger; wherein the four-way valve has a cooling state and a heating state, and when the four-way valve is in the cooling state, the first interface is connected to the second interface, and the third interface is connected to the fourth interface; when the four-way valve is in the heating state, the first interface is connected to the fourth interface, and the second interface is connected to the third interface.

[0014] According to some embodiments of the present invention, the thermal management system further includes: a first on-off valve connected between the other end of the second heat exchanger and the outlet of the compressor.

[0015] According to some embodiments of the present utility model, the thermal management system also includes: a second on-off valve, which is connected between the other end of the water tank heat exchanger and the outlet of the compressor; and a third on-off valve, which is connected between the other end of the water tank heat exchanger and the inlet of the compressor.

[0016] According to some embodiments of the present utility model, the thermal management system has switchable air-cooling heat storage mode, air-heat heat storage mode and air-heat heat release mode; when the thermal management system is in the air-cooling heat storage mode, the four-way valve is in the cooling state, the first on-off valve is closed, the second on-off valve is opened, and the third on-off valve is closed; when the thermal management system is in the air-heat heat storage mode, the four-way valve is in the heating state, the first on-off valve is opened, the second on-off valve is opened, and the third on-off valve is closed; when the thermal management system is in the air-heat heat release mode, the four-way valve is in the heating state, the first on-off valve is opened, the second on-off valve is opened, and the third on-off valve is closed.

[0017] According to some embodiments of the utility model, the thermal management system has a defrost mode. When the thermal management system is in the defrost mode, the four-way valve is in the refrigeration state, the first on-off valve is closed, the second on-off valve is closed, and the third on-off valve is opened.

[0018] According to some embodiments of the present utility model, the thermal management system further includes: a battery thermal management circuit, which is connected to the refrigerant circuit and is used to exchange heat with the battery pack.

[0019] According to some embodiments of the utility model, the thermal management system also includes: a fourth on-off valve, which is connected between one end of the battery thermal management circuit and the fourth interface; and a fifth on-off valve, which is connected between the one end of the battery thermal management circuit and the inlet of the compressor.

[0020] According to some embodiments of the present utility model, the thermal management system has a switchable air-cooling-electric cooling mode, an air-heating-electric heating mode and an air-heating-electric cooling mode; when the thermal management system is in the air-cooling-electric cooling mode, the four-way valve is in the cooling state, the first on-off valve is closed, the fourth on-off valve is closed and the fifth on-off valve is opened; when the thermal management system is in the air-heating-electric heating mode, the four-way valve is in the heating state, the first on-off valve is opened, the fourth on-off valve is opened and the fifth on-off valve is closed; when the thermal management system is in the air-heating-electric cooling mode, the four-way valve is in the heating state, the first on-off valve is opened, the fourth on-off valve is opened and the fifth on-off valve is closed; when the thermal management system is in the air-heating-electric cooling mode, the four-way valve is in the heating state, the first on-off valve is opened, the fourth on-off valve is closed and the fifth on-off valve is opened.

[0021] According to some embodiments of the utility model, the battery thermal management circuit includes: a plurality of battery direct cooling plates, the plurality of battery direct cooling plates are arranged in parallel, one end of the battery direct cooling plate is connected to the aggregation branch, and the other end is respectively connected to the fourth interface and the inlet of the compressor.

[0022] According to some embodiments of the utility model, the battery thermal management circuit also includes: a plurality of fourth electronic expansion valves, one end of the fourth electronic expansion valve is connected to the one end of the battery direct cooling plate, and the other end of the fourth electronic expansion valve is connected to the aggregation branch, and the plurality of fourth electronic expansion valves correspond one-to-one to the plurality of battery direct cooling plates; a plurality of fifth electronic expansion valves, one end of the fifth electronic expansion valve is connected to the other end of the battery direct cooling plate, and the other end of the fifth electronic expansion valve is respectively connected to the fourth interface and the inlet of the compressor, and the plurality of fifth electronic expansion valves correspond one-to-one to the plurality of battery direct cooling plates.

[0023] According to some embodiments of the utility model, the battery thermal management circuit includes: a battery heat exchanger, the battery heat exchanger having a first heat exchange channel and a second heat exchange channel for mutual heat exchange, one end of the first heat exchange channel is connected to the aggregation branch, and the other end is respectively connected to the fourth interface and the inlet of the compressor, and the second heat exchange channel is connected to the battery pack.

[0024] According to some embodiments of the present invention, the thermal management system further includes: a heater, which is connected to the second heat exchange channel and is connected in series with the battery pack.

[0025] According to some embodiments of the present utility model, the thermal management system further includes: an electrically controlled direct cooling plate, one end of which is connected to the aggregation branch, and the other end of which is connected to the inlet of the compressor.

[0026] According to some embodiments of the present utility model, the thermal management system further includes: a sixth electronic expansion valve, wherein the sixth electronic expansion valve is connected between the one end of the electric-controlled direct cooling plate and the aggregation branch.

[0027] According to some embodiments of the present utility model, the thermal management system further includes: a motor heat exchange module, which is connected to the refrigerant circuit and is used for exchanging heat with the motor.

[0028] According to some embodiments of the present utility model, the motor heat exchange module includes: a motor heat exchanger, the motor heat exchanger having a third heat exchange channel and a fourth heat exchange channel for mutual heat exchange, one end of the third heat exchange channel is connected to the aggregation branch, and the other end is connected to the inlet of the compressor, and the fourth heat exchange channel is connected to the motor.

[0029] According to some embodiments of the utility model, the motor heat exchange module also includes: a motor radiator; a three-way valve, the three-way valve having a first port, a second port and a third port, the first port being connected to one end of the motor radiator, the second port being connected to the one end of the fourth heat exchange channel, and the third port being respectively connected to the other end of the motor radiator and the motor; wherein the three-way valve controls the second port to be connected to the first port or the third port.

[0030] According to some embodiments of the present utility model, the thermal management system further includes: a seventh electronic expansion valve, wherein the seventh electronic expansion valve is connected between the one end of the third heat exchange channel and the aggregation branch.

[0031] According to some embodiments of the present utility model, the thermal management system also includes: an eighth electronic expansion valve, which is connected between the external heat exchanger and the aggregation branch; and a sixth on-off valve, which is connected between the external heat exchanger and the aggregation branch and is connected in parallel with the eighth electronic expansion valve.

[0032] According to some embodiments of the present utility model, the thermal management system further includes: a ninth electronic expansion valve, wherein the ninth electronic expansion valve is connected between the one end of the water tank heat exchanger and the aggregation branch.

[0033] According to a second aspect of the present invention, a vehicle is provided. The vehicle includes a thermal management system according to the first aspect of the present invention.

[0034] The vehicle according to the second aspect of the present invention can utilize the thermal management system according to the first aspect of the present invention to store waste heat in the thermal management system using a water tank, and can also utilize the water tank to release heat to the thermal management system, thereby achieving higher energy utilization.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0037] Figure 1 It is a schematic diagram of the structure of the thermal management system of an embodiment of the utility model;

[0038] Figure 2 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the air cooling heat storage mode;

[0039] Figure 3 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the air-heat storage mode;

[0040] Figure 4 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the air-heat release mode;

[0041] Figure 5 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the defrosting mode;

[0042] Figure 6 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the air cooling and electric cooling mode;

[0043] Figure 7 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the air-heating and electric-heating mode;

[0044] Figure 8 It is a structural schematic diagram of the thermal management system of the embodiment of the utility model in the air-heating and electric-cooling mode;

[0045] Fig. 9 It is a schematic structural diagram of a thermal management system of another embodiment of the utility model;

[0046] Fig.10 It is a structural schematic diagram of a thermal management system of another embodiment of the utility model.

[0047] Reference numerals:

[0048] 1. Thermal management system;

[0049] 101, aggregation branch; 110, compressor; 120, external heat exchanger; 131, passenger compartment heat exchanger; 132, first heat exchanger; 133, second heat exchanger; 134, living compartment heat exchanger;

[0050] 200, water storage tank module; 210, water storage tank; 220, heat exchange pipe;

[0051] 300, four-way valve; 310, first interface; 320, second interface; 330, third interface; 340, fourth interface;

[0052] 400, battery thermal management circuit; 410, battery direct cooling plate; 420, battery heat exchanger; 421, first heat exchange channel; 422, second heat exchange channel; 430, heater; 440, battery pack;

[0053] 500, electric controlled direct cooling plate;

[0054] 600, motor heat exchange module; 610, motor heat exchanger; 611, third heat exchange channel; 612, fourth heat exchange channel; 620, motor radiator; 630, three-way valve; 631, first port; 632, second port; 633, third port; 640, motor;

[0055] 710, first electronic expansion valve; 720, second electronic expansion valve; 730, third electronic expansion valve; 740, fourth electronic expansion valve; 750, fifth electronic expansion valve; 760, sixth electronic expansion valve; 770, seventh electronic expansion valve; 780, eighth electronic expansion valve; 790, ninth electronic expansion valve;

[0056] 810, first on-off valve; 820, second on-off valve; 830, third on-off valve; 840, fourth on-off valve; 850, fifth on-off valve; 860, sixth on-off valve. DETAILED DESCRIPTION

[0057] The embodiments of the present invention are described in detail below, and 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 invention, and cannot be understood as limiting the present invention.

[0058] In the description of the present invention, 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", "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 invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0059] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0060] In the description of the present invention, "multiple" means two or more, and "several" means one or more.

[0061] A thermal management system 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0062] like Figure 1-Figure 10 As shown, the thermal management system 1 according to the embodiment of the present utility model includes a compressor 110 , an external heat exchanger 120 , an internal heat exchanger and a water tank module 200 .

[0063] The compressor 110 , the external heat exchanger 120 and the internal heat exchanger are connected to form a refrigerant circuit. The water tank module 200 includes a water tank 210 and a water tank heat exchanger. The water tank heat exchanger is connected to the refrigerant circuit, and the water tank heat exchanger exchanges heat with the water tank 210 .

[0064] It should be noted that, Figure 2-Figure 8 As shown in the figure, the solid line indicates that the refrigerant or coolant in the pipeline is in a circulation state, and the dotted line indicates that the valve on the pipeline is closed and the refrigerant or coolant in the pipeline is not circulating.

[0065] In addition, the water tank heat exchanger in the embodiment of the utility model can be arranged outside the water tank 210 to perform heat exchange with the water tank 210, or the water tank heat exchanger can also be arranged inside the water tank 210, that is, the water tank heat exchanger can directly contact the water in the water tank 210 and perform heat exchange.

[0066] According to the thermal management system 1 of the embodiment of the utility model, the water tank heat exchanger is connected to the refrigerant circuit, and the water tank heat exchanger performs heat exchange with the water tank 210. That is to say, the water tank module 200 can selectively release heat to the water tank 210 or absorb heat from the water tank 210 through the water tank heat exchanger. In this way, when the thermal management system 1 cools or heats the vehicle, the refrigerant can flow through the water tank heat exchanger to release heat to the water tank 210 through the water tank heat exchanger, thereby reducing the temperature of the refrigerant. Not only can the heat in the thermal management system 1 be stored in the water tank 210 to avoid heat waste, but the heat in the thermal management system 1 can also be used to heat the domestic water in the water tank 210, which is convenient for daily use.

[0067] Moreover, when there is sufficient heat in the thermal management system 1, for example, when there is sufficient waste heat in the motor 640, the heat of the motor 640 can be transferred to the refrigerant circuit, and the heat can be transferred to the water tank 210 through the refrigerant, so that the water tank 210 can be used to store the excess waste heat of the motor 640, thereby avoiding energy waste and further improving the energy utilization rate of the thermal management system 1.

[0068] In addition, when the heat demand of the thermal management system 1 is large, for example, when it is necessary to defrost the outdoor heat exchanger 120 or quickly heat the interior of the vehicle and the battery, the water tank module 200 can use the water tank heat exchanger to absorb the heat of the water tank 210 so that the heat in the water tank 210 can be transferred to the refrigerant circuit, that is, the water tank 210 can release heat to the refrigerant circuit, which is convenient for realizing rapid defrosting of the outdoor heat exchanger 120, and the heat in the water tank 210 can be used to heat the interior of the vehicle and the battery, thereby realizing rapid heating of the interior of the vehicle and the battery.

[0069] In this way, the thermal management system 1 according to the embodiment of the utility model can use the water tank 210 to store the waste heat in the thermal management system 1, and can use the water tank 210 to release heat into the thermal management system 1, so that the energy utilization rate is higher.

[0070] In some specific embodiments of the present invention, Figure 1-Figure 10 As shown, the water tank heat exchanger includes a heat exchange pipe 220 , which is connected to the refrigerant circuit and exchanges heat with the water tank 210 .

[0071] That is, the water tank module 200 can directly exchange heat with the water tank 210 through the heat exchange pipe 220, which is conducive to simplifying the structure of the water tank heat exchanger and facilitating the arrangement and connection of the water tank module 200. Specifically, the heat exchange pipe 220 can be directly wound around the outer peripheral surface of the water tank 210 to increase the contact area between the heat exchange pipe 220 and the water tank 210. When the refrigerant flows through the heat exchange pipe 220, it can exchange heat with the water tank 210, thereby releasing heat to the water tank 210 or absorbing heat in the water tank 210.

[0072] In some specific embodiments of the present invention, Figure 1-Figure 10 As shown, the thermal management system 1 further includes a four-way valve 300 .

[0073] The four-way valve 300 is respectively connected to the compressor 110 , the external heat exchanger 120 , the internal heat exchanger and the water tank heat exchanger to adjust the flow direction of the refrigerant in the refrigerant circuit and the water tank heat exchanger.

[0074] Therefore, the four-way valve 300 can control the order in which the refrigerant flows through the external heat exchanger 120, the internal heat exchanger and the water tank heat exchanger, and then can control the external heat exchanger 120 and the internal heat exchanger to act as an evaporator or a condenser to realize the switching of the cooling and heating modes in the vehicle. At the same time, the water tank module 200 can be controlled to absorb the heat of the water tank 210 through the water tank heat exchanger or release heat to the water tank 210, so as to realize the switching of multiple modes of the thermal management system 1.

[0075] In some specific embodiments of the present invention, Figure 1 As shown, the refrigerant circuit includes a summing branch 101, which is respectively connected to one end of the external heat exchanger 120, one end of the internal heat exchanger and one end of the water tank heat exchanger.

[0076] With this arrangement, the refrigerant in the outdoor heat exchanger 120, the indoor heat exchanger and the water tank heat exchanger can all flow to the collecting branch 101, or the refrigerant can be respectively directed to the outdoor heat exchanger 120, the indoor heat exchanger and the water tank heat exchanger through the collecting branch 101, so as to realize the switching of the refrigerant flow direction in different modes. In addition, by setting the collecting branch 101, it is helpful to reduce the number of refrigerant branches between components, thereby simplifying the structure of the thermal management system 1, facilitating the flow of refrigerant and making the layout more convenient.

[0077] In some specific embodiments of the present invention, Figure 1 As shown, the in-vehicle heat exchanger includes a passenger compartment heat exchanger 131 and a living compartment heat exchanger 134 .

[0078] One end of the passenger compartment heat exchanger 131 is connected to the collecting branch 101, and the other end is connected to the four-way valve 300 and the inlet or outlet of the compressor 110. One end of the living compartment heat exchanger 134 is connected to the collecting branch 101, and the other end is connected to the four-way valve 300.

[0079] Therefore, heat exchange can be performed with the passenger compartment through the passenger compartment heat exchanger 131, that is, the passenger compartment heat exchanger 131 can be used to cool or heat the passenger compartment, and heat exchange can be performed with the living compartment through the living compartment heat exchanger 134, that is, the living compartment heat exchanger 134 can be used to cool or heat the living compartment. In this way, the cooling and heating of the passenger compartment and the living compartment can be independent of each other and do not affect each other, which is beneficial to reducing the energy consumption of the thermal management system 1.

[0080] Furthermore, if Figure 1 As shown, the passenger compartment heat exchanger 131 includes a first heat exchanger 132 and a second heat exchanger 133 .

[0081] One end of the first heat exchanger 132 is connected to the summing branch 101 , and the other end is connected to the inlet of the compressor 110 . One end of the second heat exchanger 133 is connected to the summing branch 101 , and the other end is connected to the outlet of the compressor 110 .

[0082] It can be understood that, in this embodiment, the first heat exchanger 132 acts as an evaporator, and the second heat exchanger 133 acts as a condenser.

[0083] In this way, when cooling the passenger compartment, the refrigerant flowing out of the compressor 110 can first pass through the outdoor heat exchanger 120 and the water tank module 200 to release heat, and then the refrigerant flows to the first heat exchanger 132 through the summing branch 101 to absorb the heat of the passenger compartment through the first heat exchanger 132, and finally flows back to the compressor 110, thereby realizing the refrigeration cycle of the passenger compartment; when heating the passenger compartment, the refrigerant flowing out of the compressor 110 can flow directly to the second heat exchanger 133, and then can release heat to the passenger compartment through the second heat exchanger 133, and then the refrigerant flows to the outdoor heat exchanger 120 and the water tank module 200 through the summing branch 101, and the refrigerant absorbs heat through the outdoor heat exchanger 120 and the water tank module 200 and then flows back to the compressor 110, thereby realizing the heating cycle of the passenger compartment.

[0084] In addition, it should be noted that Fig.10 As shown, there may be only one passenger compartment heat exchanger 131, that is, one passenger compartment heat exchanger 131 is used to switch between cooling and heating of the passenger compartment, which is helpful to simplify the structure of the thermal management system 1 and save costs.

[0085] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a first electronic expansion valve 710 , a second electronic expansion valve 720 and a third electronic expansion valve 730 .

[0086] The first electronic expansion valve 710 is connected between one end of the first heat exchanger 132 and the aggregation branch 101, the second electronic expansion valve 720 is connected between one end of the second heat exchanger 133 and the aggregation branch 101, and the third electronic expansion valve 730 is connected between one end of the living cabin heat exchanger 134 and the aggregation branch 101.

[0087] Thus, the on-off connection between the first heat exchanger 132 and the aggregation branch 101 can be controlled by the first electronic expansion valve 710, and the flow rate of the refrigerant flowing through the first heat exchanger 132 can be controlled by the first electronic expansion valve 710, and then the refrigerant flowing to the first heat exchanger 132 can be throttled by the first electronic expansion valve 710 to facilitate the refrigerant to evaporate and absorb heat through the first heat exchanger 132.

[0088] In addition, the second electronic expansion valve 720 can control the on-off connection between the second heat exchanger 133 and the aggregation branch 101, and the flow rate of the refrigerant flowing through the second heat exchanger 133 can be controlled by the second electronic expansion valve 720, and the flow rate of the refrigerant flowing to the second heat exchanger 133 can be adjusted by the second electronic expansion valve 720 to facilitate the condensation and heat release of the refrigerant through the second heat exchanger 133.

[0089] In addition, the on-off connection between the living cabin heat exchanger 134 and the aggregation branch 101 can be controlled by the third electronic expansion valve 730, and the flow rate of the refrigerant flowing through the living cabin heat exchanger 134 can be controlled by the third electronic expansion valve 730. Furthermore, the refrigerant flowing to the living cabin heat exchanger 134 can be throttled or flow-regulated by the third electronic expansion valve 730, so that the refrigerant can evaporate and absorb heat or condense and release heat through the living cabin heat exchanger 134.

[0090] In addition, by providing the first electronic expansion valve 710, the second electronic expansion valve 720 and the third electronic expansion valve 730, not only can the flow through the first heat exchanger 132, the second heat exchanger 133 and the living compartment heat exchanger 134 be controlled according to the needs of the first heat exchanger 132, the second heat exchanger 133 and the living compartment heat exchanger 134 to achieve a reasonable distribution of the flow in the refrigerant circuit, but also the first heat exchanger 132, the second heat exchanger 133 and the living compartment heat exchanger 134 can be independently opened and closed, for example, cooling or heating only the passenger compartment, or cooling or heating only the living compartment can be achieved.

[0091] In some specific embodiments of the present invention, Figure 1 As shown, the four-way valve 300 includes a first port 310 , a second port 320 , a third port 330 and a fourth port 340 .

[0092] The first interface 310 is connected to the outlet of the compressor 110 , the second interface 320 is connected to one end of the external heat exchanger 120 , the third interface 330 is respectively connected to the inlet of the compressor 110 , and the fourth interface 340 is connected to the living cabin heat exchanger 134 .

[0093] Among them, the four-way valve 300 has a cooling state and a heating state. When the four-way valve 300 is in the cooling state, the first interface 310 and the second interface 320 are connected, and the third interface 330 and the fourth interface 340 are connected; when the four-way valve 300 is in the heating state, the first interface 310 and the fourth interface 340 are connected, and the second interface 320 and the third interface 330 are connected.

[0094] The number of interfaces of the four-way valve 300 can also be increased according to demand, so that by switching the different states of the four-way valve 300, the switching of the refrigerant flow direction in the thermal management system 1 can be realized, thereby realizing the switching of different modes of the thermal management system 1. Moreover, by setting the four-way valve 300, the integration of the four-way valve 300 is higher, which is conducive to reducing the number of valves in the thermal management system 1, thereby reducing the complexity of the flow channel connection of the thermal management system 1, and thereby reducing the cost of the thermal management system 1.

[0095] In addition, it should be noted that Fig.10As shown, when there is only one passenger compartment heat exchanger 131, the passenger compartment heat exchanger 131 can be connected to the fourth interface 340. When cooling the passenger compartment, the fourth interface 340 and the third interface 330 are connected, and the refrigerant absorbs the heat of the passenger compartment through the passenger compartment heat exchanger 131 and then flows back to the compressor 110 through the fourth interface 340 and the third interface 330; when heating the passenger compartment, the first interface 310 and the fourth interface 340 are connected, and the refrigerant flowing out of the compressor 110 flows to the passenger compartment heat exchanger 131 through the first interface 310 and the fourth interface 340, and then releases heat to the passenger compartment through the passenger compartment heat exchanger 131 and then flows to the aggregation branch 101.

[0096] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a first on-off valve 810 .

[0097] The first on-off valve 810 is connected between the other end of the second heat exchanger 133 and the outlet of the compressor 110. Thus, when the second heat exchanger 133 is needed to heat the passenger compartment, the first on-off valve 810 can be opened to allow the refrigerant to flow through the second heat exchanger 133.

[0098] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a second on-off valve 820 and a third on-off valve 830 .

[0099] The second on-off valve 820 is connected between the other end of the water storage tank heat exchanger and the outlet of the compressor 110 , and the third on-off valve 830 is connected between the other end of the water storage tank heat exchanger and the inlet of the compressor 110 .

[0100] In this way, when it is necessary to release heat to the water tank 210 through the water tank heat exchanger, the second on-off valve 820 can be opened and the third on-off valve 830 can be closed, so that the refrigerant can flow directly to the water tank module 200 through the compressor 110, and release heat to the water tank 210 through the water tank heat exchanger; and when it is necessary to absorb the heat of the water tank 210 through the water tank module 200, the second on-off valve 820 can be closed and the third on-off valve 830 can be opened. After the refrigerant flows out of the compressor 110, it will not flow directly to the water tank module 200, and the refrigerant can absorb the heat of the water tank 210 through the water tank heat exchanger and then flow back to the compressor 110 through the third on-off valve 830.

[0101] In some specific embodiments of the present invention, Figure 2 -like Figure 4 As shown, the thermal management system 1 has switchable air-cooling heat storage mode, air-heat storage mode and air-heat release mode.

[0102] like Figure 2As shown, when the thermal management system 1 is in the air-cooling heat storage mode, the four-way valve 300 is in the cooling state, the first on-off valve 810 is closed, the second on-off valve 820 is opened, and the third on-off valve 830 is closed.

[0103] In this way, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 110 can be divided into two paths. The first path flows to the external heat exchanger 120 through the first interface 310 and the second interface 320 of the four-way valve 300, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the outside of the vehicle through the external heat exchanger 120, and enters the aggregation branch 101; the second path flows to the water tank module 200 through the second on-off valve 820, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the water tank 210 through the water tank heat exchanger, and enters the aggregation branch 101. Then, the two refrigerants merge in the aggregation branch 101 and flow to the first heat exchanger 132 and the living cabin heat exchanger 134, so as to absorb the heat of the passenger cabin through the first heat exchanger 132 after throttling and reducing the pressure through the first electronic expansion valve 710, and to absorb the heat of the living cabin through the living cabin heat exchanger 134 after throttling and reducing the pressure through the third electronic expansion valve 730, and then become a low-temperature and low-pressure gaseous refrigerant. Finally, the refrigerant passing through the living cabin heat exchanger 134 passes through the fourth interface 340 and the third interface 330 to merge with the refrigerant flowing through the first heat exchanger 132, and then flows back to the compressor 110, realizing the cycle of the air-cooling heat storage mode.

[0104] Therefore, the thermal management system 1 can not only realize the cooling of the passenger compartment and the living compartment, but also can utilize the water tank module 200 to heat the water tank 210, and further heat the domestic water, so that the water tank 210 can be used to store heat.

[0105] In addition, if Figure 3 As shown, when the thermal management system 1 is in the air-heat storage mode, the four-way valve 300 is in the heating state, the first on-off valve 810 is opened, the second on-off valve 820 is opened, and the third on-off valve 830 is closed.

[0106] In this way, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 110 can be divided into two paths. Part of the first refrigerant flows to the second heat exchanger 133 through the first on-off valve 810, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the passenger compartment through the second heat exchanger 133, and enters the aggregation branch 101, and another part of the first refrigerant flows to the water tank module 200 through the second on-off valve 820, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the water tank 210 through the water tank heat exchanger, and enters the aggregation branch 101; the second refrigerant flows to the living cabin heat exchanger 134 through the first interface 310 and the fourth interface 340 of the four-way valve 300, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the living cabin through the living cabin heat exchanger 134, and enters the aggregation branch 101. Then, the first refrigerant and the second refrigerant merge in the aggregation branch 101 and flow to the external heat exchanger 120, and then pass through the eighth electronic expansion valve 780 to throttle and reduce the pressure, and then pass through the external heat exchanger 120 to absorb the heat outside the vehicle and become a low-temperature and low-pressure gaseous refrigerant. Finally, the refrigerant flows back to the compressor 110 through the second interface 320 and the third interface 330, realizing the circulation of the air-heat storage mode.

[0107] Therefore, the thermal management system 1 can not only realize heating for the passenger compartment and the living compartment, but also can utilize the water tank module 200 to heat the water tank 210, and further heat the domestic water, so that the water tank 210 can be used to store heat.

[0108] In addition, if Figure 4 As shown, when the thermal management system 1 is in the air-heat release mode, the four-way valve 300 is in the heating state, the first on-off valve 810 is opened, the second on-off valve 820 is closed, and the third on-off valve 830 is opened.

[0109] In this way, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 110 can be divided into two paths. The first path of refrigerant flows to the second heat exchanger 133 through the first on-off valve 810, and after releasing heat to the passenger compartment through the second heat exchanger 133, it becomes a medium-temperature and high-pressure liquid refrigerant, and enters the aggregation branch 101; the second path of refrigerant flows to the living cabin heat exchanger 134 through the first interface 310 and the fourth interface 340 of the four-way valve 300, and after releasing heat to the living cabin through the living cabin heat exchanger 134, it becomes a medium-temperature and high-pressure liquid refrigerant, and enters the aggregation branch 101. Then, the first refrigerant and the second refrigerant merge in the collecting branch 101 and flow to the external heat exchanger 120 and the water tank module 200 respectively, so as to be converted into a low-temperature and low-pressure gaseous refrigerant after being throttled and reduced in pressure by the eighth electronic expansion valve 780 and then absorbing the heat outside the vehicle through the external heat exchanger 120, and to be converted into a low-temperature and low-pressure gaseous refrigerant after being throttled and reduced in pressure by the ninth electronic expansion valve 790 and then absorbing the heat of the water tank 210 through the water tank heat exchanger. Finally, the refrigerant flowing through the external heat exchanger 120 passes through the second interface 320 and the third interface 330 and merges with the refrigerant flowing through the water tank module 200 and flows back to the compressor 110, thereby realizing the circulation of the air-heat release mode.

[0110] Therefore, the thermal management system 1 can not only heat the passenger compartment and the living compartment, but also use the water tank module 200 to absorb the heat of the water tank 210, and then use the heat of the water tank 210 to quickly heat the passenger compartment or the living compartment, thereby achieving rapid heating of the vehicle interior and the battery.

[0111] In some specific embodiments of the present invention, Figure 5 As shown, the thermal management system 1 has a defrost mode. When the thermal management system 1 is in the defrost mode, the four-way valve 300 is in a refrigeration state, the first on-off valve 810 is closed, the second on-off valve 820 is closed, and the third on-off valve 830 is opened.

[0112] In this way, the high-temperature and high-pressure refrigerant flowing out of the compressor 110 can flow directly to the outdoor heat exchanger 120, and then the high-temperature and high-pressure refrigerant can be used to release heat in the outdoor heat exchanger 120 to achieve defrosting of the outdoor heat exchanger 120, and the refrigerant can flow through the water tank module 200, and then the water tank heat exchanger can be used to absorb the heat of the water tank 210, so that the heat in the water tank 210 can be used to achieve rapid defrosting of the outdoor condenser.

[0113] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a battery thermal management circuit 400 , which is connected to the refrigerant circuit and is used for exchanging heat with the battery pack 440 .

[0114] In this way, the thermal management system 1 can utilize the battery thermal management circuit 400 and the battery pack 440 for heat exchange, and then can utilize the battery thermal management circuit 400 to heat the battery pack 440 to prevent the temperature of the battery pack 440 from being too low, or can utilize the battery thermal management circuit 400 to absorb the heat of the battery pack 440 to cool the battery pack 440 to prevent the temperature of the battery pack 440 from being too high, so that the temperature of the battery pack 440 can be maintained in an efficient working temperature range, and the charging and discharging efficiency is higher.

[0115] Of course, in certain specific modes, the thermal management system 1 can also use the waste heat of the battery pack 440 to heat other components, that is, the battery pack 440 transfers its own heat to the refrigerant circuit through the battery thermal management circuit 400, and then transfers the heat to other components through the refrigerant circuit.

[0116] Furthermore, if Figure 1 As shown, the thermal management system 1 further includes a fourth on-off valve 840 and a fifth on-off valve 850 .

[0117] The fourth on-off valve 840 is connected between one end of the battery thermal management loop 400 and the fourth interface 340 , and the fifth on-off valve 850 is connected between one end of the battery thermal management loop 400 and the inlet of the compressor 110 .

[0118] Therefore, when it is necessary to heat the battery pack 440, the fourth on-off valve 840 can be opened and the fifth on-off valve 850 can be closed, so that the refrigerant flowing out of the compressor 110 can flow directly to the battery thermal management circuit 400 through the first interface 310 and the fourth interface 340; and when it is necessary to cool the battery pack 440, the fourth on-off valve 840 can be closed and the fifth on-off valve 850 can be opened, so that the refrigerant flowing out of the compressor 110 can flow through the battery thermal management circuit 400 after releasing heat, and absorb the heat of the battery pack 440 through the battery thermal management circuit 400 and then flow back to the compressor 110 through the fifth on-off valve 850.

[0119] In some specific embodiments of the present invention, Figure 6-Figure 8 As shown, the thermal management system 1 has switchable air-cooling and electric-cooling modes, air-heating and electric-heating modes, and air-heating and electric-cooling modes.

[0120] like Figure 6 As shown, when the thermal management system 1 is in the air-cooling and electric-cooling mode, the four-way valve 300 is in the cooling state, the first on-off valve 810 is closed, the fourth on-off valve 840 is closed, and the fifth on-off valve 850 is opened.

[0121] In this way, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 110 can be divided into two paths. The first path flows to the external heat exchanger 120 through the first interface 310 and the second interface 320 of the four-way valve 300, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the outside of the vehicle through the external heat exchanger 120, and enters the aggregation branch 101; the second path flows to the water tank module 200 through the second on-off valve 820, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the water tank 210 through the water tank module 200, and enters the aggregation branch 101. Then, the two refrigerant paths are merged in the aggregation branch 101 and then divided into three paths, and flow to the first heat exchanger 132, the living cabin heat exchanger 134 and the battery thermal management circuit 400 respectively, and then can absorb the heat of the passenger compartment through the first heat exchanger 132, the living cabin heat exchanger 134, and the battery pack 440 through the battery thermal management circuit 400 to become a low-temperature and low-pressure gaseous refrigerant. Finally, the refrigerant passing through the living cabin heat exchanger 134 passes through the fourth interface 340 and the third interface 330 to first merge with the refrigerant flowing through the first heat exchanger 132, and then merge with the refrigerant flowing through the battery thermal management circuit 400 and then flow back to the compressor 110, realizing the cycle of the air-cooling and electric-cooling modes.

[0122] Therefore, the thermal management system 1 can not only realize the cooling of the passenger compartment and the living compartment, but also can cool the battery pack 440 to prevent the temperature of the battery pack 440 from being too high.

[0123] like Figure 7 As shown, when the thermal management system 1 is in the air-heating and electric-heating mode, the four-way valve 300 is in the heating state, the first on-off valve 810 is opened, the fourth on-off valve 840 is opened, and the fifth on-off valve 850 is closed;

[0124] In this way, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 110 can be divided into two paths. Part of the refrigerant in the first path flows to the second heat exchanger 133 through the first on-off valve 810, and after releasing heat to the passenger compartment through the second heat exchanger 133, it becomes a medium-temperature and high-pressure liquid refrigerant and enters the aggregation branch 101, and the other part of the refrigerant in the first path flows to the water storage tank module 200 through the second on-off valve 820, and after releasing heat to the water storage tank 210 through the water storage tank module 200, it becomes a medium-temperature and high-pressure liquid. The first refrigerant is a refrigerant that flows into the summary branch 101; the second refrigerant flows to the living cabin heat exchanger 134 and the battery thermal management circuit 400 respectively after passing through the first interface 310 and the fourth interface 340 of the four-way valve 300, so that part of the second refrigerant can release heat to the living cabin through the living cabin heat exchanger 134, and another part of the second refrigerant can release heat to the battery pack 440 through the battery thermal management circuit 400, and then become a medium-temperature and high-pressure liquid refrigerant, and enter the summary branch 101. Then, the first refrigerant and the second refrigerant merge in the summary branch 101 and flow to the external heat exchanger 120, so as to absorb the external heat through the external heat exchanger 120 and become a low-temperature and low-pressure gaseous refrigerant. Finally, the refrigerant flows back to the compressor 110 through the second interface 320 and the third interface 330, realizing the circulation of the air-heat and electric-heat mode.

[0125] Therefore, the thermal management system 1 can not only heat the passenger compartment and the living compartment, but also heat the battery pack 440 to prevent the temperature of the battery pack 440 from being too low.

[0126] like Figure 8 As shown, when the thermal management system 1 is in the air-heating and electric-cooling mode, the four-way valve 300 is in the heating state, the first on-off valve 810 is opened, the fourth on-off valve 840 is closed, and the fifth on-off valve 850 is opened.

[0127] In this way, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 110 can be divided into two paths. Part of the first refrigerant flows to the second heat exchanger 133 through the first on-off valve 810, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the passenger compartment through the second heat exchanger 133, and enters the aggregation branch 101. Another part of the first refrigerant flows to the water tank module 200 through the second on-off valve 820, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the water tank 210 through the water tank module 200, and enters the aggregation branch 101; the second refrigerant flows to the living cabin heat exchanger 134 through the first interface 310 and the fourth interface 340 of the four-way valve 300, and becomes a medium-temperature and high-pressure liquid refrigerant after releasing heat to the living cabin through the living cabin heat exchanger 134, and enters the aggregation branch 101. Then, the first refrigerant and the second refrigerant merge in the collecting branch 101 and flow to the external heat exchanger 120 and the battery thermal management circuit 400 respectively, so as to absorb the external heat through the external heat exchanger 120, and absorb the heat of the battery pack 440 through the battery thermal management circuit 400 to become a low-temperature and low-pressure gaseous refrigerant. Finally, the refrigerant flowing through the external heat exchanger 120 flows back to the compressor 110 through the second interface 320 and the third interface 330, and the refrigerant flowing through the battery thermal management circuit 400 flows back to the compressor 110 through the fifth on-off valve 850, thereby realizing the circulation of the air-heat-electric-cooling mode.

[0128] Therefore, the thermal management system 1 can not only heat the passenger compartment and the living compartment, but also cool the battery pack 440 to prevent the temperature of the battery pack 440 from being too low.

[0129] It can be understood that the above-mentioned air-cooling-electric cooling mode does not conflict with the air-cooling heat storage mode or the air-cooling heat release mode, the air-heat-electric heating mode does not conflict with the air-heat heat storage mode or the air-heat heat release mode, and the air-heat-electric cooling mode does not conflict with the air-heat heat storage mode or the air-heat heat release mode.

[0130] It should be noted that the thermal management system 1 in the embodiment of the utility model not only has the above-mentioned multiple modes, but can also combine other multiple modes by adjusting the opening and closing of the electronic expansion valve and the on-off valve to achieve a flexible combination of multiple different functions and meet the heat recovery function in different scenarios.

[0131] In some specific embodiments of the present invention, Figure 1 As shown, the battery thermal management loop 400 includes a plurality of battery direct cooling plates 410 .

[0132] Multiple battery direct cooling plates 410 are arranged in parallel, one end of the battery direct cooling plate 410 is connected to the aggregation branch 101, and the other end is respectively connected to the fourth interface 340 and the inlet of the compressor 110. Among them, the multiple battery direct cooling plates 410 can be respectively attached to different sides of the battery pack 440, or the multiple battery direct cooling plates 410 can exchange heat with multiple different battery packs 440.

[0133] In this way, when the refrigerant flows through the battery thermal management circuit 400 , it can directly exchange heat with the battery pack 440 through the battery direct cooling plate 410 , and then the battery direct cooling plate 410 can be used to heat or cool the battery pack 440 .

[0134] In some specific embodiments of the present invention, Figure 1 As shown, the battery thermal management circuit 400 further includes a plurality of fourth electronic expansion valves 740 and a plurality of fifth electronic expansion valves 750 .

[0135] One end of the fourth electronic expansion valve 740 is connected to one end of the battery direct cooling plate 410, and the other end of the fourth electronic expansion valve 740 is connected to the aggregation branch 101, multiple fourth electronic expansion valves 740 correspond one-to-one to multiple battery direct cooling plates 410, the fifth electronic expansion valve 750 is connected to the other end of the battery direct cooling plate 410, and the other end of the fifth electronic expansion valve 750 is respectively connected to the fourth interface 340 and the inlet of the compressor 110, and multiple fifth electronic expansion valves 750 correspond one-to-one to multiple battery direct cooling plates 410.

[0136] In this way, when it is necessary to cool the battery pack 440, the flow rate and pressure of the refrigerant flowing to each battery direct cooling plate 410 can be adjusted by adjusting the opening of the fourth electronic expansion valve 740; and when it is necessary to heat the battery pack 440, the flow rate and pressure of the refrigerant flowing to each battery direct cooling plate 410 can be adjusted by adjusting the opening of the fifth electronic expansion valve 750, so that the heating and cooling capacity of the battery pack 440 can be more accurately controlled, which is conducive to accurately regulating the temperature of the battery pack 440 so that the battery pack 440 can be in a more efficient working range.

[0137] In other specific embodiments of the present invention, Fig. 9 As shown, the battery thermal management loop 400 includes a battery heat exchanger 420 .

[0138] The battery heat exchanger 420 has a first heat exchange channel 421 and a second heat exchange channel 422 for mutual heat exchange. One end of the first heat exchange channel 421 is connected to the aggregation branch 101, and the other end is respectively connected to the fourth interface 340 and the inlet of the compressor 110. The second heat exchange channel 422 is connected to the battery pack 440.

[0139] Therefore, when the refrigerant flows through the first heat exchange channel 421, the refrigerant in the first heat exchange channel 421 and the coolant in the second heat exchange channel 422 can perform heat exchange, and then the refrigerant in the first heat exchange channel 421 can transfer heat to the coolant in the second heat exchange channel 422, so that the coolant in the second heat exchange channel 422 can be used to heat the battery pack 440, thereby increasing the temperature of the battery pack 440, or the refrigerant in the first heat exchange channel 421 can be used to absorb the heat of the coolant in the second heat exchange channel 422, so that the coolant in the second heat exchange channel 422 can be used to cool the battery pack 440, thereby cooling the battery pack 440.

[0140] In some specific embodiments of the present invention, Fig. 9 As shown, the thermal management system 1 further includes a heater 430 , which is connected to the second heat exchange channel 422 and is connected in series with the battery pack 440 .

[0141] By setting up the heater 430, when the heat in the refrigerant circuit is insufficient to meet the heating demand of the battery pack 440, the heater 430 can be turned on to utilize the heater 430 to assist in heating the battery pack 440, thereby achieving rapid heating of the battery pack 440 and more effectively avoiding the battery pack 440 from being too cold.

[0142] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes an electrically controlled direct cooling plate 500 .

[0143] One end of the electric control direct cooling plate 500 is connected to the aggregation branch 101, and the other end is connected to the inlet of the compressor 110. In this way, when the refrigerant flows through the electric control direct cooling plate 500, it can directly exchange heat with the electric control through the electric control direct cooling plate 500, and then the electric control can be cooled by the electric control direct cooling plate 500, and the waste heat of the electric control can be recycled.

[0144] Among them, it should be noted that the thermal management system 1 only cools the electric control through the electric control direct cooling plate 500, that is, in the above-mentioned multiple modes, the refrigerant in the summary branch 101 can flow to the electric control direct cooling plate 500, so as to utilize the electric control direct cooling plate 500 to absorb the heat of the electric control to achieve cooling of the electric control.

[0145] Furthermore, if Figure 1 As shown, the thermal management system 1 further includes a sixth electronic expansion valve 760, which is connected between one end of the electric control direct cooling plate 500 and the aggregation branch 101. In this way, when cooling the electric control, by adjusting the opening of the sixth electronic expansion valve 760, the flow of the refrigerant flowing to the electric control direct cooling plate 500 can be adjusted, so that the temperature of the electric control can be controlled more accurately to avoid the temperature of the electric control being too high.

[0146] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a motor heat exchange module 600 , which is connected to the refrigerant circuit and is used for exchanging heat with the motor 640 .

[0147] In this way, when the waste heat of the motor 640 is high, heat exchange can be performed through the motor heat exchange module 600 and the refrigerant circuit to transfer the waste heat of the motor 640 to the refrigerant circuit, thereby fully utilizing the waste heat of the motor 640 and avoiding energy waste.

[0148] In some specific embodiments of the present invention, Figure 1 As shown, the motor heat exchange module 600 includes a motor heat exchanger 610 .

[0149] The motor heat exchanger 610 has a third heat exchange channel 611 and a fourth heat exchange channel 612 for mutual heat exchange. One end of the third heat exchange channel 611 is connected to the aggregation branch 101 and the other end is connected to the inlet of the compressor 110. The fourth heat exchange channel 612 is connected to the motor 640.

[0150] Therefore, when the refrigerant flows through the third heat exchange channel 611, the refrigerant in the third heat exchange channel 611 and the coolant in the fourth heat exchange channel 612 can perform heat exchange, and then the refrigerant in the third heat exchange channel 611 can absorb the heat of the coolant in the fourth heat exchange channel 612, and the temperature of the coolant in the fourth heat exchange channel 612 drops, so that the coolant in the fourth heat exchange channel 612 can be used to cool the motor 640, thereby achieving the cooling of the motor 640. At the same time, the heat of the motor 640 can be transferred to the refrigerant circuit to make full use of the waste heat of the motor 640 and avoid energy loss.

[0151] In some specific embodiments of the present invention, Figure 1 As shown, the motor heat exchange module 600 further includes a motor radiator 620 and a three-way valve 630 .

[0152] The three-way valve 630 has a first port 631, a second port 632 and a third port 633, wherein the first port 631 is connected to one end of the motor radiator 620, the second port 632 is connected to one end of the fourth heat exchange channel 612, and the third port 633 is respectively connected to the other end of the motor radiator 620 and the motor 640; wherein the three-way valve 630 controls the second port 632 to be connected to the first port 631 or the third port 633.

[0153] Specifically, when the ambient temperature is high and the thermal management system 1 is used for cooling the interior of the vehicle, the three-way valve 630 can control the connection between the second port 632 and the first port 631, so that the coolant can flow through the motor 640, the motor heat exchanger 610 and the motor radiator 620 in sequence, and then the motor radiator 620 can be used to cool the motor 640. At this time, the heat of the motor 640 is not transferred to the refrigerant circuit through the motor heat exchanger 610.

[0154] When the thermal management system 1 is heating the interior of the vehicle, the three-way valve 630 can control the connection between the second port 632 and the third port 633, so that the coolant can flow through the motor 640 and the motor heat exchanger 610 in sequence, and then the motor heat exchanger 610 can be used to transfer the heat of the motor 640 to the refrigerant circuit to fully utilize the waste heat of the motor 640 and avoid the temperature of the motor 640 being too high.

[0155] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a seventh electronic expansion valve 770, which is connected between one end of the third heat exchange channel 611 and the aggregation branch 101. In this way, when the motor heat exchanger 610 is used to realize the heat exchange between the motor 640 and the motor heat exchange module 600, the flow rate of the refrigerant flowing to the motor heat exchanger 610 can be adjusted by adjusting the opening of the seventh electronic expansion valve 770, so that the heat exchange amount of the motor 640 and the motor heat exchange module 600 can be controlled more accurately.

[0156] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes an eighth electronic expansion valve 780 and a sixth on-off valve 860 .

[0157] The eighth electronic expansion valve 780 is connected between the off-vehicle heat exchanger 120 and the aggregation branch 101, and the sixth on-off valve 860 is connected between the off-vehicle heat exchanger 120 and the aggregation branch 101 and is connected in parallel with the eighth electronic expansion valve 780. Thus, the flow of the refrigerant flowing through the off-vehicle heat exchanger 120 can be adjusted by adjusting the opening of the eighth electronic expansion valve 780 after closing the sixth on-off valve 860, and when the flow of the refrigerant flowing through the off-vehicle heat exchanger 120 does not need to be adjusted, the sixth on-off valve 860 is opened to ensure that the circuit is unobstructed without pressure loss. In addition, when heat exchange with the outside of the vehicle through the off-vehicle heat exchanger 120 is not needed, the eighth electronic expansion valve 780 and the sixth on-off valve 860 can be closed at the same time to block the refrigerant from flowing to the off-vehicle heat exchanger 120.

[0158] In some specific embodiments of the present invention, Figure 1As shown, the thermal management system 1 further includes a ninth electronic expansion valve 790, which is connected between one end of the water storage tank heat exchanger and the aggregation branch 101. In this way, the flow of the refrigerant flowing through the water storage tank heat exchanger can be adjusted by adjusting the opening of the ninth electronic expansion valve 790, and the heat exchange amount between the refrigerant circuit and the water storage tank 210 can be adjusted.

[0159] A vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings. The vehicle includes a thermal management system 1 according to the above embodiment of the present invention.

[0160] According to the vehicle of the embodiment of the utility model, by utilizing the thermal management system 1 according to the above embodiment of the utility model, the water tank 210 can be used to store the waste heat in the thermal management system 1, and the water tank 210 can be used to release heat to the thermal management system 1, so that the energy utilization rate is higher.

[0161] Other structures and operations of the thermal management system 1 and the vehicle having the same according to the embodiment of the present utility model are known to those skilled in the art and will not be described in detail here.

[0162] In the description of this specification, the description with reference to the terms "specific embodiment", "specific example", etc. 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0163] Although the embodiments of the present invention 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thermal management system, characterized in that: include: A compressor, an external heat exchanger and an internal heat exchanger, wherein the compressor, the external heat exchanger and the internal heat exchanger are connected to form a refrigerant circuit; A water tank module, the water tank module includes a water tank and a water tank heat exchanger, the water tank heat exchanger is connected to the refrigerant circuit, and the water tank heat exchanger exchanges heat with the water tank.

2. The thermal management system according to claim 1, characterized in that: The water tank heat exchanger includes a heat exchange pipe, which is connected to the refrigerant circuit and exchanges heat with the water tank.

3. The thermal management system according to claim 1, characterized in that: Also includes: A four-way valve is connected to the compressor, the external heat exchanger, the internal heat exchanger and the water tank heat exchanger respectively to adjust the refrigerant flow direction in the refrigerant circuit and the water tank heat exchanger.

4. The thermal management system according to claim 3, characterized in that: The refrigerant circuit comprises: A summing branch is connected to one end of the external heat exchanger, one end of the internal heat exchanger and one end of the water tank heat exchanger respectively.

5. The thermal management system according to claim 4, characterized in that: The in-vehicle heat exchanger comprises: A passenger compartment heat exchanger, one end of which is connected to the aggregation branch, and the other end of which is connected to the four-way valve and the inlet or outlet of the compressor; A living cabin heat exchanger, one end of which is connected to the collecting branch, and the other end of which is connected to the four-way valve.

6. The thermal management system according to claim 5, characterized in that: The passenger compartment heat exchanger comprises: A first heat exchanger, one end of which is connected to the aggregation branch, and the other end of which is connected to the inlet of the compressor; A second heat exchanger, one end of which is connected to the collecting branch, and the other end of which is connected to the outlet of the compressor.

7. The thermal management system according to claim 6, characterized in that: Also includes: a first electronic expansion valve, the first electronic expansion valve being connected between the one end of the first heat exchanger and the summing branch; a second electronic expansion valve, the second electronic expansion valve being connected between the one end of the second heat exchanger and the summing branch; A third electronic expansion valve is connected between the one end of the living cabin heat exchanger and the aggregation branch.

8. The thermal management system according to claim 6, characterized in that: The four-way valve comprises: a first interface connected to the outlet of the compressor; a second interface, the second interface being connected to one end of the external heat exchanger; a third interface, wherein the third interface is respectively connected to the inlet of the compressor; A fourth interface, the fourth interface being connected to the living cabin heat exchanger; The four-way valve has a cooling state and a heating state. When the four-way valve is in the cooling state, the first interface is connected to the second interface, and the third interface is connected to the fourth interface. When the four-way valve is in the heating state, the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface.

9. The thermal management system according to claim 8, characterized in that: Also includes: A first on-off valve is connected between the other end of the second heat exchanger and the outlet of the compressor.

10. The thermal management system according to claim 9, characterized in that: Also includes: a second on-off valve connected between the other end of the water storage tank heat exchanger and the outlet of the compressor; A third on-off valve is connected between the other end of the water storage tank heat exchanger and the inlet of the compressor.

11. The thermal management system according to claim 10, characterized in that: The thermal management system has a switchable air-cooling heat storage mode, an air-heat storage mode and an air-heat release mode; When the thermal management system is in the air-cooling heat storage mode, the four-way valve is in the cooling state, the first on-off valve is closed, the second on-off valve is opened, and the third on-off valve is closed; When the thermal management system is in the air-heat storage mode, the four-way valve is in the heating state, the first on-off valve is opened, the second on-off valve is opened, and the third on-off valve is closed; When the thermal management system is in the air-heat release mode, the four-way valve is in the heating state, the first on-off valve is opened, the second on-off valve is closed, and the third on-off valve is opened.

12. The thermal management system according to claim 10, characterized in that: The thermal management system has a defrost mode. When the thermal management system is in the defrost mode, the four-way valve is in the refrigeration state, the first on-off valve is closed, the second on-off valve is closed, and the third on-off valve is opened.

13. The thermal management system according to claim 9, characterized in that: Also includes: A battery thermal management circuit is connected to the refrigerant circuit and is used to exchange heat with the battery pack.

14. The thermal management system according to claim 13, characterized in that: Also includes: a fourth on-off valve connected between one end of the battery thermal management circuit and the fourth interface; A fifth on-off valve is connected between the one end of the battery thermal management loop and the inlet of the compressor.

15. The thermal management system according to claim 14, characterized in that: The thermal management system has a switchable air-cooling and electric-cooling mode, an air-heating and electric-heating mode, and an air-heating and electric-cooling mode; When the thermal management system is in the air-cooling and electric-cooling mode, the four-way valve is in the cooling state, the first on-off valve is closed, the fourth on-off valve is closed, and the fifth on-off valve is opened; When the thermal management system is in the air-heating and electric-heating mode, the four-way valve is in the heating state, the first on-off valve is opened, the fourth on-off valve is opened, and the fifth on-off valve is closed; When the thermal management system is in the air-heating and electric-cooling mode, the four-way valve is in the heating state, the first on-off valve is opened, the fourth on-off valve is closed, and the fifth on-off valve is opened.

16. The thermal management system according to claim 13, characterized in that: The battery thermal management circuit comprises: A plurality of battery direct cooling plates are arranged in parallel, one end of each battery direct cooling plate is connected to the aggregation branch, and the other end is respectively connected to the fourth interface and the inlet of the compressor.

17. The thermal management system according to claim 16, characterized in that: The battery thermal management circuit also includes: A plurality of fourth electronic expansion valves, one end of each of the fourth electronic expansion valves being connected to the one end of each of the battery direct cooling plates, and the other end of each of the fourth electronic expansion valves being connected to the aggregation branch, and the plurality of fourth electronic expansion valves corresponding to the plurality of battery direct cooling plates; A plurality of fifth electronic expansion valves, one end of the fifth electronic expansion valve is connected to the other end of the battery direct cooling plate, and the other end of the fifth electronic expansion valve is respectively connected to the fourth interface and the inlet of the compressor, and the plurality of fifth electronic expansion valves correspond one to one to the plurality of battery direct cooling plates.

18. The thermal management system according to claim 13, characterized in that: The battery thermal management circuit comprises: A battery heat exchanger, wherein the battery heat exchanger has a first heat exchange channel and a second heat exchange channel for exchanging heat with each other, one end of the first heat exchange channel is connected to the aggregation branch, and the other end is respectively connected to the fourth interface and the inlet of the compressor, and the second heat exchange channel is connected to the battery pack.

19. The thermal management system according to claim 18, characterized in that: Also includes: A heater is connected to the second heat exchange channel and is connected in series with the battery pack.

20. The thermal management system according to claim 4, characterized in that: Also includes: An electrically controlled direct cooling plate, one end of which is connected to the aggregation branch, and the other end is connected to the inlet of the compressor.

21. The thermal management system according to claim 20, characterized in that: Also includes: A sixth electronic expansion valve is connected between the one end of the electric-controlled direct cooling plate and the aggregation branch.

22. The thermal management system according to claim 4, characterized in that: Also includes: A motor heat exchange module is connected to the refrigerant circuit and is used for exchanging heat with the motor.

23. The thermal management system according to claim 22, characterized in that: The motor heat exchange module comprises: The motor heat exchanger has a third heat exchange channel and a fourth heat exchange channel for mutual heat exchange, one end of the third heat exchange channel is connected to the aggregation branch, and the other end is connected to the inlet of the compressor, and the fourth heat exchange channel is connected to the motor.

24. The thermal management system according to claim 23, characterized in that: The motor heat exchange module also includes: Motor radiator; A three-way valve, the three-way valve having a first port, a second port and a third port, the first port being connected to one end of the motor radiator, the second port being connected to the one end of the fourth heat exchange channel, and the third port being connected to the other end of the motor radiator and the motor respectively; The three-way valve controls the second port to communicate with the first port or the third port.

25. The thermal management system according to claim 23, characterized in that: Also includes: A seventh electronic expansion valve is connected between the one end of the third heat exchange channel and the aggregation branch.

26. The thermal management system according to claim 4, characterized in that Also includes: an eighth electronic expansion valve, the eighth electronic expansion valve being connected between the off-vehicle heat exchanger and the aggregation branch; A sixth on-off valve is connected between the off-vehicle heat exchanger and the aggregation branch and is connected in parallel with the eighth electronic expansion valve.

27. The thermal management system according to claim 4, characterized in that: Also includes: A ninth electronic expansion valve, wherein the ninth electronic expansion valve is connected between the one end of the water storage tank heat exchanger and the aggregation branch.

28. A vehicle, characterized in that: Comprising a thermal management system according to any one of claims 1-27.

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