Thermal management system and vehicle having the same

Abstract

According to the present invention, a thermal management system and a vehicle having the same are disclosed, including: a heat pump module, a battery water circuit, an electric assembly water circuit and an engine water circuit, wherein the engine water circuit is connected in series with the battery water circuit; a first heat exchanger, wherein the first heat exchanger has a first heat exchange path and a second heat exchange path, wherein the first heat exchange path is connected to the heat pump module, and the second heat exchange path is connected to the battery water circuit; a second heat exchanger, wherein the second heat exchanger has a third heat exchange path and a fourth heat exchange path, wherein the third heat exchange path is connected to the heat pump module, and the fourth heat exchange path is connected to the electric assembly water circuit; the engine water circuit can selectively switch between three states: self-circulation conduction, connection in series with the battery water circuit, and connection in series with the electric assembly water circuit. The thermal management system according to an embodiment of the present invention can make full use of the waste heat of the engine assembly, the electric assembly and the battery pack, and has the advantages of high integration and low energy consumption.

Description

Technical Field

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

[0002] The thermal management system in the related technology integrates and controls the electric assembly water circuit, battery water circuit, heat pump module and engine water circuit, so that the various systems coordinate with each other, reduce the energy consumption of the whole vehicle, and realize the heat management and reasonable distribution and utilization of the whole vehicle in hybrid mode.

[0003] However, the thermal management system in the related art cannot meet the complex thermal management requirements of pure electric vehicles (EV) or hybrid electric vehicles (HEV) under driving mode, and cannot fully utilize the waste heat of the engine assembly, electric assembly and battery pack. It has low integration and high energy consumption. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a thermal management system that can fully utilize the waste heat of the engine assembly, the electric assembly and the battery pack, and has the advantages of high integration and low energy consumption.

[0005] The present invention also provides a vehicle having the thermal management system.

[0006] In order to achieve the above-mentioned purpose, a thermal management system is proposed according to a first aspect embodiment of the present invention, comprising: a heat pump module, a battery water circuit, an electric assembly water circuit and an engine water circuit, the engine water circuit being connected in series with the battery water circuit; a first heat exchanger, the first heat exchanger having a first heat exchange passage and a second heat exchange passage, the first heat exchange passage being connected to the heat pump module, and the second heat exchange passage being connected to the battery water circuit; a second heat exchanger, the second heat exchanger having a third heat exchange passage and a fourth heat exchange passage, the third heat exchange passage being connected to the heat pump module, and the fourth heat exchange passage being connected to the electric assembly water circuit; the engine water circuit can selectively switch between three states of self-circulation conduction, series connection with the battery water circuit, and series connection with the electric assembly water circuit.

[0007] The thermal management system according to the embodiment of the present invention can fully utilize the waste heat of the engine assembly, the electric assembly and the battery pack, and has the advantages of high integration and low energy consumption.

[0008] According to some embodiments of the present invention, the thermal management system also includes: a warm air water circuit, which is connected between the engine water circuit and the battery water circuit; the warm air water circuit can be selectively connected in series with or disconnected from the battery water circuit, and the warm air water circuit can be selectively connected in series with or disconnected from the engine water circuit.

[0009] According to some embodiments of the present invention, the warm air water circuit includes: a circulation branch, which can be selectively connected or disconnected in series with the battery water circuit; a first connecting branch, one end of the first connecting branch is connected to the circulation branch and the other end is connected to the engine water circuit; a second connecting branch, one end of the second connecting branch is connected to the circulation branch and the other end is connected to the engine water circuit; a warm air system, which is connected to the circulation branch and is located between the first connecting branch and the second connecting branch; wherein the circulation branch can be selectively connected or disconnected in series with the engine water circuit through the first connecting branch and the second connecting branch.

[0010] According to some embodiments of the present invention, the circulation branch is connected to the battery water circuit through a first three-way valve, the first three-way valve has a first port, a second port and a third port, the first port is connected to one end of the battery water circuit, the second port, the other end of the battery water circuit and one end of the circulation branch are connected to each other, and the third port is connected to the other end of the circulation branch; when the first port and the third port are connected, the circulation branch is connected in series with the battery water circuit.

[0011] According to some embodiments of the present invention, the warm air water circuit further includes: a heater, which is connected to the circulation branch and is connected in series with the warm air system.

[0012] According to some embodiments of the present invention, the heater includes: a PTC and an engine exhaust gas collecting pipe, the PTC and the engine exhaust gas collecting pipe are connected in parallel; the warm air water circuit also includes a second three-way valve, the second three-way valve is connected to the circulation branch and is respectively connected to the PTC, the engine exhaust gas collecting pipe and the warm air system, and is used to control at least one of the PTC and the engine exhaust gas collecting pipe to be connected to the warm air system.

[0013] According to some embodiments of the present invention, the warm air water circuit also includes: a third three-way valve, the third three-way valve having a fourth port, a fifth port and a sixth port, the fourth port and one end of the first connecting branch are connected to each other, the fifth port is connected to one end of the second connecting branch, and the sixth port is connected to the other end of the warm air system; when the fifth port is connected to the sixth port, the circulation branch is connected in series with the engine water circuit.

[0014] According to some embodiments of the present invention, the engine water circuit includes: an engine assembly, a first radiator and a first direct branch, the first radiator is connected in parallel with the first direct branch, and the engine assembly can be selectively connected in series with the first radiator or the first direct branch.

[0015] According to some embodiments of the present invention, the thermal management system also includes: a warm air water circuit, which is connected between the engine water circuit and the battery water circuit, one end of the warm air water circuit is connected to one end of the engine assembly, and the other end of the warm air water circuit is connected to the other end of the engine assembly; the warm air water circuit can be selectively connected in series with or disconnected from the battery water circuit, and the warm air water circuit can be selectively connected in series with or disconnected from the engine assembly.

[0016] According to some embodiments of the present invention, the thermal management system further includes: a third heat exchanger, the third heat exchanger having a fifth heat exchange passage and a sixth heat exchange passage, the fifth heat exchange passage is connected to the electric assembly water circuit, and the sixth heat exchange passage is connected to the engine supercharger.

[0017] According to some embodiments of the present invention, the thermal management system also includes: a four-way valve, the four-way valve having a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port and the second valve port are connected to the electric assembly water circuit, and the third valve port and the fourth valve port are connected to the engine water circuit; when the first valve port is connected to the fourth valve port and the second valve port is connected to the third valve port, the engine water circuit is connected in series with the electric assembly water circuit.

[0018] According to some embodiments of the present invention, the electric assembly water circuit includes: an electric assembly, the fourth heat exchange passage is connected in parallel with the electric assembly; a second radiator and a second direct-connected branch, the second radiator is connected in parallel with the second direct-connected branch, and the electric assembly can be selectively connected in series with the second radiator or the second direct-connected branch.

[0019] According to some embodiments of the present invention, the electric assembly includes: an oil cooler, the oil cooler having a seventh heat exchange passage and an eighth heat exchange passage, the eighth heat exchange passage being connected in parallel with the fourth heat exchange passage; a motor, the motor being connected in series with the seventh heat exchange passage; and an electronic control component, the electronic control component being connected in series with the eighth heat exchange passage.

[0020] According to some embodiments of the present invention, the battery water path includes: a battery pack, and the battery pack is located upstream of the second heat exchange path.

[0021] According to some embodiments of the present invention, the heat pump module includes: a compressor; an indoor condenser, one end of the indoor condenser being connected to one end of the compressor; an outdoor heat exchanger, one end of the outdoor heat exchanger being connected to the other end of the indoor condenser and selectively connected to the one end of the compressor, and the other end of the outdoor heat exchanger being selectively connected to the other end of the compressor; an indoor evaporator, one end of the indoor evaporator being selectively connected to the other end of the outdoor heat exchanger, and the other end of the indoor evaporator being connected to the other end of the compressor.

[0022] According to some embodiments of the present invention, one end of the third heat exchange path can be selectively connected to the other end of the indoor condenser or the other end of the outdoor heat exchanger, and the other end of the third heat exchange path is connected to the other end of the compressor.

[0023] According to some embodiments of the present invention, one end of the third heat exchange path is in communication with the one end of the indoor condenser, and the other end of the third heat exchange path is in communication with the other end of the compressor.

[0024] According to a second aspect of the present invention, a vehicle is provided, comprising a thermal management system according to the first aspect of the present invention.

[0025] The vehicle according to the second aspect of the embodiment of the present invention can fully utilize the waste heat of the engine assembly, the electric assembly and the battery pack by utilizing the thermal management system according to the first aspect of the embodiment of the present invention, and has the advantages of high integration and low energy consumption.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 Schematic diagram of the structure of a thermal management system according to an embodiment of the present invention.

[0029] Figure 2 yes Figure 1 Detailed view of A.

[0030] Figure 3 Schematic diagram of the structure of independent cooling of the passenger compartment of the thermal management system according to an embodiment of the present invention.

[0031] Figure 42 is a schematic diagram of a structure in which a passenger compartment and a battery pack are cooled simultaneously in a thermal management system according to an embodiment of the present invention.

[0032] Figure 5 1 is a schematic diagram of the structure of a battery pack independent cooling system according to an embodiment of the present invention.

[0033] Figure 6 4 is a schematic diagram of the structure of the passenger compartment independent heating of the thermal management system according to an embodiment of the present invention.

[0034] Figure 7 It is a schematic structural diagram of independent heating of the passenger compartment of a thermal management system according to another embodiment of the present invention.

[0035] Figure 8 It is a schematic structural diagram of independent heating of the passenger compartment of a thermal management system according to yet another embodiment of the present invention.

[0036] Fig. 9 It is a schematic structural diagram of independent heating of the passenger compartment of a thermal management system according to another embodiment of the present invention.

[0037] Fig.10 2 is a schematic diagram of a structure in which a passenger compartment and a battery pack are heated simultaneously in a thermal management system according to an embodiment of the present invention.

[0038] Fig.11 2 is a schematic diagram of a structure in which a passenger compartment and a battery pack are heated simultaneously in a thermal management system according to another embodiment of the present invention.

[0039] Fig.12 2 is a schematic structural diagram of a thermal management system according to another embodiment of the present invention for simultaneously heating a passenger compartment and a battery pack.

[0040] Fig.13 1 is a schematic diagram of the structure of a thermal management system for independently heating a battery pack according to an embodiment of the present invention.

[0041] Fig.14 1 is a schematic diagram of the structure of a thermal management system for independently heating a battery pack according to another embodiment of the present invention.

[0042] Fig.15 1 is a schematic diagram of the structure of a thermal management system for independently heating a battery pack according to another embodiment of the present invention.

[0043] Fig.16 Schematic diagram of the structure of passenger compartment dehumidification of a thermal management system according to an embodiment of the present invention.

[0044] Fig.17 2 is a schematic diagram of the structure of a thermal management system according to an embodiment of the present invention for heating the passenger compartment and cooling the battery pack.

[0045] Reference numerals:

[0046] Thermal management system 1.

[0047] Heat pump module 100, compressor 110, indoor condenser 120, outdoor heat exchanger 130, indoor evaporator 140, battery water circuit 200, battery pack 210,

[0048] Electric assembly water circuit 300, electric assembly 310, oil cooler 320, motor 330, electric control component 340, fourth three-way valve 350, second radiator 360, second direct branch 370,

[0049] Engine water circuit 400, engine assembly 410, oil heat exchanger 420, first radiator 430, thermostat 440, first direct branch 450, engine supercharger 460,

[0050] The first heat exchanger 500, the second heat exchanger 510, the third heat exchanger 520,

[0051] Warm air water circuit 600, circulation branch 610, first connecting branch 620, second connecting branch 630, warm air system 640, heater 650, PTC 660, engine exhaust collection pipe 670, second three-way valve 680, third three-way valve 690, fourth port 691, fifth port 692, sixth port 693,

[0052] The first three-way valve 710, the first port 720, the second port 730, the third port 740,

[0053] The first electromagnetic expansion valve 800 , the first two-way valve 810 , the first check valve 820 , the second two-way valve 830 , the second electromagnetic expansion valve 840 , the third electromagnetic expansion valve 850 , the fourth electromagnetic expansion valve 860 , the fifth electromagnetic expansion valve 870 , the four-way valve 880 , and the second check valve 890 . DETAILED DESCRIPTION

[0054] Embodiments of the present invention are described in detail below, examples of which 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.

[0055] 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, rather than indicating or implying 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 limiting the present invention.

[0056] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0057] In the description of the present invention, "plurality" means two or more than two, and "several" means one or more.

[0058] First, a thermal management system 1 according to an embodiment of the present invention will be described with reference to the drawings.

[0059] like Figure 1-Figure 17 As shown, the thermal management system 1 according to the embodiment of the present invention includes a heat pump module 100, a battery water circuit 200, an electric assembly water circuit 300, an engine water circuit 400, a first heat exchanger 500, and a second heat exchanger 510. The first heat exchanger 500 and the second heat exchanger 510 can both be plate heat exchangers, and the cooling medium in the battery water circuit 200, the electric assembly water circuit 300, and the engine water circuit 400 can be the same.

[0060] The engine water circuit 400 is connected in series with the battery water circuit 200, the first heat exchanger 500 has a first heat exchange passage and a second heat exchange passage, the first heat exchange passage is connected to the heat pump module 100, and the second heat exchange passage is connected to the battery water circuit 200, the second heat exchanger 510 has a third heat exchange passage and a fourth heat exchange passage, the third heat exchange passage is connected to the heat pump module 100, and the fourth heat exchange passage is connected to the electric assembly water circuit 300, and the engine water circuit 400 can selectively switch between three states: self-circulation conduction, series connection with the battery water circuit 200, and series connection with the electric assembly water circuit 300.

[0061] The engine water path 400 may be connected in series with the battery water path 200 and the electric assembly water path 300 at the same time.

[0062] For example, the refrigerant of the heat pump module 100 may be R-410A, R-407C, R-134a, etc., and the cooling medium of the battery water circuit 200, the electric assembly water circuit 300, and the engine water circuit 400 may be a mixture of water and ethylene glycol.

[0063] According to the thermal management system 1 of the embodiment of the present invention, the engine water circuit 400 and the battery water circuit 200 are connected in series, and the first heat exchanger 500 has a first heat exchange path and a second heat exchange path. The first heat exchange path is connected to the heat pump module 100, and the second heat exchange path is connected to the battery water circuit 200. The first heat exchange path and the second heat exchange path are not connected. In this way, the engine water circuit 400 and the battery water circuit 200 can form a single water circuit, and the cooling medium can circulate in the engine water circuit 400 and the battery water circuit 200, and the heat of the engine water circuit 400 and the battery water circuit 200 can be heat-exchanged with the heat pump module 100 through the first heat exchanger 500. For example, when the heat pump module 100 is cooling, the heat of the battery water circuit can be taken away through the first heat exchanger 500. 200 and the engine water circuit 400, that is, the temperature of the cooling medium in the battery water circuit 200 is reduced. At this time, the cooling medium can dissipate heat and cool down the battery pack 210 and the engine assembly 410 to avoid the temperature of the battery pack 210 and the engine assembly 410 being too high, so as to ensure the normal operation of the battery pack 210 and the engine assembly 410; when the heat pump module 100 is heating, the heat pump module 100 can absorb the waste heat of the battery water circuit 200 and the engine water circuit 400 through the first heat exchanger 500, and use the waste heat of the battery water circuit 200 and the engine water circuit 400 to heat the heat pump module 100, so as to reduce the heating difficulty of the heat pump module 100, make full use of the waste heat of the battery water circuit 200 and the engine water circuit 400, improve energy utilization rate, and reduce energy consumption.

[0064] Furthermore, the engine water circuit 400 can exchange heat with the battery water circuit 200 , and the preheating of the engine assembly 410 can heat the battery pack 210 , which can ensure the normal operation of the battery pack 210 when the heat pump module 100 is not working.

[0065] In addition, the second heat exchanger 510 has a third heat exchange passage and a fourth heat exchange passage. The third heat exchange passage is connected to the heat pump module 100, and the refrigerant in the heat pump module 100 can flow through the third heat exchange passage. The fourth heat exchange passage is connected to the electric assembly water circuit 300, and the cooling medium in the electric assembly water circuit 300 can flow through the fourth heat exchange passage. The third heat exchange passage and the fourth heat exchange passage are not connected. The second heat exchanger 510 can realize heat exchange between the heat pump module 100 and the electric assembly water circuit 300. In this way, the heat pump module 100 can cool down the electric assembly 310 through the heat exchange between the second heat exchanger 510 and the electric assembly 310 to avoid the electric assembly 310 from being too high. The waste heat of the electric assembly 310 can also be used to heat the heat pump module 100, further reducing the difficulty of heating the heat pump module 100, while making full use of the waste heat of the electric assembly 310 to reduce energy consumption.

[0066] In addition, the engine water circuit 400 can selectively switch between three states: self-circulation conduction, series connection with the battery water circuit 200, and series connection with the electric assembly water circuit 300. When the engine water circuit 400 is connected in series with the electric assembly water circuit 300, the heat pump module 100 can absorb the heat of the engine water circuit 400 through the second heat exchanger 510, and fully utilize the heat of the engine water circuit 400 to heat the heat pump module 100, so that the heat pump module 100 can heat quickly. In addition, the engine water circuit 400 can switch between three states, making the thermal management system more integrated.

[0067] Thus, through the first heat exchanger 500 and the second heat exchanger 510, the heat pump module 100 can absorb the waste heat of the battery water path 200, the electric assembly water path 300 and the engine water path 400 to improve the heating effect of the heat pump module 100, and effectively utilize the heat of the battery water path 200, the electric assembly water path 300 and the engine water path 400, improve the energy efficiency ratio of the thermal management of the whole vehicle, meet the heating and cooling requirements of the whole vehicle and the battery pack 210 in an economical and energy-saving manner, and greatly improve the pure electric driving range of the hybrid vehicle. In addition, the thermal management system 1 has a high degree of integration.

[0068] In this way, the thermal management system 1 according to the embodiment of the present invention can fully utilize the waste heat of the engine assembly 410, the electric assembly 310 and the battery pack 210, and has the advantages of good heating effect and low energy consumption.

[0069] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a warm air water circuit 600 , which can be selectively connected in series with or disconnected from the battery water circuit 200 , and can be selectively connected in series with or disconnected from the engine water circuit 400 .

[0070] Specifically, the warm air water path 600 is connected between the engine water path 400 and the battery water path 200 . The warm air water path 600 is mainly used to provide warm air to the passenger compartment, thereby increasing the temperature of the passenger compartment and enhancing the user's comfort.

[0071] When the battery water path 200 is disconnected from the heater water path 600, and the heater water path 600 is also disconnected from the engine water path 400, Figure 4 As shown, at this time, the battery water circuit 200 circulates alone, and when the heat pump module 100 runs a refrigeration cycle, the cooling medium flows in the battery water circuit 200, the refrigerant flows in the heat pump module 100, and the heat pump module 100 can cool the battery water circuit 200 through the first heat exchanger 500. The heat pump module 100 cools the passenger compartment and the battery pack 210 at the same time, thereby reducing the temperature of the passenger compartment and preventing the temperature of the battery pack 210 from being too high.

[0072] Or, if Figure 6 As shown, when the passenger compartment is heated separately, in the pure electric mode, the heat pump module 100 runs a heating cycle and the heat in the battery water circuit 200 is sufficient or just enough, then the heating demand of the heat pump module 100 can be met only by absorbing the waste heat of the battery water circuit 200. The cooling medium in the battery water circuit 200 takes away the heat of the battery pack 210 and transfers the heat of the battery to the heat pump module 100 through the first heat exchanger 500. The heat pump module 100 heats the passenger compartment by utilizing the heat of the battery water circuit 200.

[0073] In addition, when the warm air water circuit 600 is connected in series with the engine water circuit 400 and the warm air water circuit 600 is disconnected from the battery water circuit 200, the warm air water circuit 600 works inside and can transmit warm air to the passenger compartment, thereby increasing the temperature of the passenger compartment and increasing the user's comfort.

[0074] For example, Figure 7 As shown, the passenger compartment is heated separately. When in pure electric mode, the heat pump module 100 runs a heating cycle when the ambient temperature is lower than -10°C and the heat of the battery pack 210 is insufficient. At this time, the passenger compartment can be auxiliary heated by connecting the warm air water circuit 600 to quickly increase the temperature of the passenger compartment and improve riding comfort.

[0075] Or, if Figure 8 As shown, the passenger compartment is heated separately. In hybrid mode, when the engine assembly 410 is just started and the ambient temperature is lower than -10°C, and the heat in the engine water circuit 400 is insufficient, the heat pump module 100 runs a heating cycle, and the refrigerant is compressed by the compressor 110 and releases heat in the indoor condenser 120. At this time, the passenger compartment can be auxiliary heated by connecting the warm air water circuit 600 to quickly increase the temperature of the passenger compartment.

[0076] Or, if Fig. 9 As shown, the passenger compartment is heated separately. During driving in hybrid mode, the heat of the engine water circuit 400 is sufficient or just right. At this time, the warm air circuit 600 can absorb the heat of the engine water circuit 400 and blow out warm air through the warm air system 640 to heat the passenger compartment.

[0077] Or, if Fig.16 As shown, when dehumidifying the passenger compartment, the heat pump module 100 runs a refrigeration cycle to reduce the humidity in the passenger compartment, and at the same time heats the passenger compartment through the warm air water path 600 to avoid excessive temperature in the passenger compartment. At this time, the passenger compartment can be dehumidified and the temperature in the passenger compartment can be kept comfortable, thereby improving riding comfort.

[0078] In addition, when the battery water path 200 and the heater water path 600 are connected in series and the heater water path 600 is connected in series with the engine water path 400, if the passenger compartment and the battery pack 210 need to be heated at the same time, Fig.10 As shown, in pure electric mode and when the ambient temperature is lower than -10°C, the heat pump module 100 runs a heating cycle and the battery water circuit 200 operates. The battery water circuit 200 can absorb heat from the warm air circuit 600 to increase the temperature of the battery pack 210 so that the battery pack 210 can work normally. At the same time, the warm air circuit 600 can heat the passenger compartment to improve the riding comfort of the passenger compartment.

[0079] like Fig.12 As shown, when the vehicle is driven in hybrid mode and the heat in the engine water circuit 400 is sufficient or just right, the heat pump module 100 may not be running, and the engine water circuit 400, the heater water circuit 600 and the battery water circuit 200 are connected in series, the battery water circuit 200 operates and draws heat from the heater water circuit 600, and the heat in the engine water circuit 400 may be transferred to the battery water circuit 200 through the heater water circuit 600, and then transferred to the passenger compartment through the first heat exchanger 500. In this way, the battery pack 210 and the passenger compartment are heated simultaneously by the waste heat of the engine assembly 410.

[0080] Furthermore, if Figure 1 As shown, the warm air water circuit 600 includes a circulation branch 610 , a first connecting branch 620 , a second connecting branch 630 and a warm air system 640 .

[0081] The circulation branch 610 can be selectively connected in series with or disconnected from the battery water circuit 200, one end of the first connecting branch 620 is connected to the circulation branch 610 and the other end is connected to the engine water circuit 400, one end of the second connecting branch 630 is connected to the circulation branch 610 and the other end is connected to the engine water circuit 400, the warm air system 640 is connected to the circulation branch 610 and is located between the first connecting branch 620 and the second connecting branch 630, and the circulation branch 610 can be selectively connected in series with or disconnected from the engine water circuit 400 through the first connecting branch 620 and the second connecting branch 630.

[0082] Among them, the circulation branch 610 is the main operating passage of the warm air water circuit 600. The warm air system 640 is connected to the circulation branch 610, so that the warm air water circuit 600 can generate warm air through the water circuit operation of the circulation branch 610. The warm air system 640 can heat the passenger compartment, and the circulation branch 610 can be selectively connected or disconnected in series with the battery water circuit 200, so that the temperature of the circulation branch 610 can be transferred to the battery pack 210 through the battery water circuit 200, thereby providing heat to the battery pack 210 when the temperature is low.

[0083] In addition, the first connecting branch 620 and the second connecting branch 630 mainly connect the circulation branch 610, the battery water circuit 300 and the engine water circuit 400. The engine water circuit 400 can form a water circuit circulation with the circulation branch 610 through the first connecting branch 620 and the second connecting branch 630.

[0084] In this way, the heat generated by the engine water circuit 400 can be transferred to the warm air water circuit 600 through the first connecting branch 620 and the second connecting branch 630, and further transferred to the battery water circuit 200 through the warm air water circuit 600, thereby forming multiple modes to cope with different working conditions, and such a setting has a high degree of integration.

[0085] Specifically, the warm air water circuit 600 can be connected in series with the battery water circuit 200 and the circulation branch 610 can be disconnected from the engine water circuit 400, or the circulation branch 610 can be connected in series with the engine water circuit 400 and the circulation branch 610 can be disconnected from the battery water circuit 200, or the battery water circuit 200 and the warm air system 640 can be connected in series and the circulation branch 610 can also be connected in series with the engine water circuit 400. In this way, the connection state of different water circuits can be changed as needed, thereby adjusting various working conditions of the thermal management system 1, and switching is convenient.

[0086] Furthermore, if Figure 1 and Figure 2 As shown, the circulation branch 610 is connected to the battery water circuit 200 through the first three-way valve 710. The first three-way valve 710 has a first port 720, a second port 730 and a third port 740. The first port 720 is connected to one end of the battery water circuit 200, the second port 730, the other end of the battery water circuit 200 and one end of the circulation branch 610 are connected to each other, and the third port 740 is connected to the other end of the circulation branch 610. When the first port 720 and the third port 740 are connected, the circulation branch 610 is connected in series with the battery water circuit 200.

[0087] In this way, the circulation branch 610 and the battery water path 200 can be connected or disconnected by changing the connection state of the first three-way valve 710, thereby controlling the heat exchange between the heating system 640 and the battery water path 200.

[0088] Among them, the first port 720 and the second port 730 are connected, at this time the circulation branch 610 is disconnected from the battery water circuit 200, and the battery water circuit 200 exchanges heat with the heat pump module 100. The heat pump module 100 can be used for cooling to achieve simultaneous cooling of the passenger compartment and the battery pack 210, or, when the battery pack 210 has sufficient or just the right amount of heat, the heat pump module 100 can absorb the waste heat of the battery pack 210 through the first heat exchanger 500, and use the waste heat of the battery pack 210 to heat the passenger compartment.

[0089] The second port 730 is connected to the third port 740, and the circulation branch 610 is disconnected from the battery water circuit 200. The circulation branch 610 exchanges heat with the heat pump module 100. When the heat of the battery pack 210 and the engine assembly 410 is insufficient and the ambient temperature is low, the warm air system 640 can be used to assist in heating the passenger compartment to achieve rapid heating of the passenger compartment.

[0090] The first port 720 is connected to the third port 740, and the circulation branch 610 is connected in series with the battery water circuit 200. At this time, the heat of the engine water circuit 400 and the heating system 640 can be used to heat the battery pack 210 and the passenger compartment, or the waste heat of the engine water circuit 400 can be used alone to heat the battery pack 210. The heating effect of the battery pack 210 is better and the energy consumption is lower.

[0091] In some specific embodiments of the present invention, Figure 1 As shown, the warm air water circuit 600 further includes a heater 650 , which is connected to the circulation branch 610 and is connected in series with the warm air system 640 .

[0092] When in pure electric mode, Figure 7 As shown, when the ambient temperature is lower than -10°C and the heat of the battery pack 210 and the electric assembly 310 is insufficient, the heat pump module 100 runs a heating cycle. At this time, the heater 650 can be turned on to assist in heating the warm air system 640, thereby quickly increasing the temperature of the passenger compartment.

[0093] Or in hybrid mode, such as Figure 8 As shown, the ambient temperature is lower than -10°C, the engine assembly 410 has just been started, the heat of the engine assembly 410 is insufficient, and the heat pump module 100 runs a heating cycle. At this time, the heater 650 can also be turned on to assist in heating the passenger compartment to quickly increase the temperature of the passenger compartment.

[0094] In addition, the heater 650 can be used to heat the battery pack 210 and the passenger compartment at the same time, and the heater 650 can be used to heat the battery pack 210 alone, so that the temperature of the battery pack 210 can be quickly increased when the temperature is low, allowing the vehicle to start normally.

[0095] Furthermore, the heater 650 includes a PTC 660 (Positive Temperature Coefficient thermistor) and an engine exhaust gas collecting pipe 670 .

[0096] The access voltage of the PTC 660 can be adjusted according to the required heating amount. The greater the voltage, the greater the heating amount of the heater 650. When the external environment is cold, it can help increase the temperature of the battery pack 210 and the temperature of the engine assembly 410, and provide heat for the heat pump module 100 to increase the temperature of the passenger compartment. The adjustment is convenient.

[0097] The engine exhaust collection pipe 670 can realize the heat exchange between the exhaust gas and the battery water channel 200. When the required heating amount is large, the flow rate of the exhaust gas recovery can be increased. When the required heating amount is small, the flow rate of the exhaust gas recovery can be reduced accordingly, thereby controlling the heating temperature. The engine exhaust gas can also be reused, further improving energy utilization and reducing energy consumption.

[0098] And, if Figure 1 As shown, PTC660 and the engine exhaust gas collecting pipe 670 are connected in parallel, and the warm air water circuit 600 also includes a second three-way valve 680, which is connected to the circulation branch 610 and is respectively connected to PTC660, the engine exhaust gas collecting pipe 670 and the warm air system 640, and is used to control at least one of PTC660 and the engine exhaust gas collecting pipe 670 to be connected to the warm air system 640.

[0099] Among them, the second three-way valve 680 can also play the role of selecting on and off. The second three-way valve 680 is connected to the circulation branch 610. When the warm air water circuit 600 chooses to be heated through the PTC660, the second three-way valve 680 controls the PTC660 to be connected to the warm air system 640; when the warm air water circuit 600 chooses to be heated through the engine exhaust gas collection pipe 670, the second three-way valve 680 controls the engine exhaust gas collection pipe 670 to be connected to the warm air system 640; when the warm air water circuit 600 chooses to be heated through the PTC660 and the engine exhaust gas collection pipe 670 at the same time, the second three-way valve 680 controls both the PTC660 and the engine exhaust gas collection pipe 670 to be connected to the warm air system 640. In this way, a variety of heating modes can be formed, which are more applicable and can cope with different situations.

[0100] In some specific embodiments of the present invention, Figure 1 As shown, the warm air water circuit 600 also includes a third three-way valve 690, which has a fourth port 691, a fifth port 692 and a sixth port 693. The fourth port 691 and one end of the first connecting branch 620 are connected to one end of the warm air system 640, the fifth port 692 is connected to one end of the second connecting branch 630, and the sixth port 693 is connected to the other end of the warm air system 640. When the fifth port 692 is connected to the sixth port 693, the circulation branch 610 is connected in series with the engine water circuit 400.

[0101] For example, when the fourth port 691 and the fifth port 692 of the third three-way valve 690 are connected and the fourth port 691 and the fifth port 692 are disconnected from the sixth port 693 , the circulation branch 610 is not connected to the engine water circuit 400 through the first connecting branch 620 and the second connecting branch 630 .

[0102] Furthermore, at this time, if the second port 730 and the third port 740 of the first three-way valve 710 are connected, the circulation branch 610 can work independently, and the warm air system 640 can generate warm air and pass it into the passenger compartment to heat the passenger compartment. Moreover, when the ambient temperature is too low, for example, the ambient temperature is lower than -10°C, the warm air system 640 can be heated by turning on the PTC660, or by turning on the engine exhaust gas collection pipe 670, or by turning on the PCT and the engine exhaust gas collection pipe 670 at the same time to heat the warm air system 640, thereby quickly generating heat and heating the passenger compartment.

[0103] If the first port 720 and the third port 740 of the first three-way valve 710 are connected, the heat generated by the circulation branch 610 can be passed into the battery water path 200 to heat the battery pack 210, for example, Fig.13 As shown, in the pure electric mode, heat can be generated by heating through PTC660, and the heat can be transferred to the battery water path 200 through the circulation branch 610, and then transferred to the battery pack 210, so as to achieve independent heating of the battery pack 210.

[0104] Or, if Fig.14 As shown, in the hybrid mode, when the engine assembly 410 is just started and the heat of the engine assembly 410 and the electric assembly 310 is insufficient, the battery water path 200 can be heated simultaneously by the PTC 660 and the engine exhaust collection pipe 670, thereby quickly increasing the heat of the battery pack 210, so that the battery pack 210 can supply power normally and the vehicle can start normally.

[0105] In addition, when the fourth port 691 and the sixth port 693 of the third three-way valve 690 are connected, and the fourth port 691 and the sixth port 693 are both disconnected from the fifth port 692, the circulation branch 610 is connected to the engine water circuit 400 through the first connection branch 620 and the second connection branch 630. Furthermore, if the second port 730 and the third port 740 of the first three-way valve 710 are connected, the heat generated by the engine water circuit 400 can be passed into the circulation branch 610 through the first connection branch 620 and the second connection branch 630, and connected to the heating system 640. At this time, the heating system 640 does not need to perform heating work, but uses the heat of the engine water circuit 400 to generate warm air, and transmits the warm air to the passenger compartment, thereby increasing the temperature of the passenger compartment and improving energy utilization;

[0106] If the first port 720 and the third port 740 of the first three-way valve 710 are connected, the heat of the engine water path 400 can be transferred to the battery water path 200 through the heater water path 600, for example, Fig.15As shown, when the heat of the engine assembly 410 and the electric assembly 310 is sufficient or just right during driving in hybrid mode, the engine water circuit 400 is connected in series with the battery water circuit 200, and the battery pack 210 can absorb the heat of the engine water circuit 400 and the heat of the heater water circuit 600, and use the heat of the engine water circuit 400 and the heat of the heater water circuit 600 to heat the battery pack 210.

[0107] In some specific embodiments of the present invention, Figure 1 As shown, the engine water circuit 400 includes an engine assembly 410, a first radiator 430 and a first direct branch 450. The first radiator 430 is connected in parallel with the first direct branch 450. The engine assembly 410 can be selectively connected in series with the first radiator 430 or the first direct branch 450. When the heat of the engine water circuit 400 is insufficient or just right, the cooling medium can be controlled to flow through the first direct branch 450, thereby avoiding heat loss of the engine assembly 410 and improving energy utilization.

[0108] In addition, the engine water circuit 400 further includes an oil heat exchanger 420, a first radiator 430 and a thermostat 440. One end of the oil heat exchanger 420 is connected to one end of the engine assembly 410, one end of the first radiator 430 is connected to the other end of the oil heat exchanger 420, and the thermostat 440 is connected to the other end of the engine assembly 410, the other end of the oil heat exchanger 420 and the other end of the first radiator 430 respectively.

[0109] The engine assembly 410 can drive the vehicle to move, and the oil heat exchanger 420 mainly exchanges heat for the lubricating oil entering and leaving the engine assembly 410. Specifically, one side passage of the oil heat exchanger 420 is connected in series with the engine water circuit 400, and the other side passage of the oil heat exchanger 420 is connected in series with the lubricating oil circuit of the engine assembly 410. The first radiator 430 can be a high-temperature radiator, mainly used for heat dissipation of the engine assembly 410. When the heat of the engine assembly 410 is too high, it can be released to the air outside the vehicle through the first radiator 430, and the thermostat 440 can control the flow path of the cooling medium, which can play a role in automatic temperature adjustment.

[0110] For example, Fig.15As shown, when the battery pack 210 is heated separately, when the heat of the engine assembly 410 and the electric assembly 310 is sufficient or just right during driving in hybrid mode, the engine water circuit 400 is connected in series with the battery water circuit 200, and the battery pack 210 draws heat from the battery water circuit 200 to utilize the heat of the engine water circuit 400 and the electric assembly water circuit 300 to heat the battery pack 210. If the heat of the engine assembly 410 is excessive, the thermostat 440 can be used to control the cooling medium of the engine water circuit 400 to flow to the first radiator 430, and the first radiator 430 is used to dissipate heat for the engine water circuit 400 to prevent the temperature of the engine assembly 410 from being too high.

[0111] Furthermore, if Figure 1 As shown, the thermal management system 1 also includes a warm air water circuit 600, which is connected between the engine water circuit 400 and the battery water circuit 200, one end of the warm air water circuit 600 is connected to the other end of the engine assembly 410, and the other end of the warm air water circuit 600 is connected to the engine assembly 410, the warm air water circuit 600 can be selectively connected in series with or disconnected from the battery water circuit 200, and the other end of the warm air water circuit 600 can be selectively connected in series with or disconnected from the engine assembly 410.

[0112] In this way, when the heat of the engine assembly 410 is sufficient or just right during driving in hybrid mode, the warm air water circuit 600 can absorb the residual heat of the engine assembly 410 and use the heat of the engine assembly 410 to heat the passenger compartment through the warm air system 640. If the heat of the engine assembly 410 is excessive, the heat pump module 100 can be turned off, and the heat of the engine assembly 410 can be introduced into the passenger compartment only through the warm air system 640.

[0113] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a third heat exchanger 520, and the third heat exchanger 520 has a fifth heat exchange path and a sixth heat exchange path, the fifth heat exchange path is connected to the electric assembly water path 300, the cooling medium in the electric assembly water path 300 can flow through the fifth heat exchange path, and the sixth heat exchange path is connected to the engine supercharger 460. Among them, the third heat exchanger 520 can be a plate heat exchanger, and the fifth heat exchange path and the sixth heat exchange path are not connected, that is, the high-temperature gas after turbocharging of the engine supercharger 460 can exchange heat with the cooling medium in the electric assembly water path 300 through the third heat exchanger 520, and then dissipate heat through the second radiator 360 in the electric assembly water path 300.

[0114] Thus, the electric assembly water circuit 300 and the engine water circuit 400 can exchange heat, and the heat pump module 100 can indirectly absorb the heat of the engine water circuit 400 through the second heat exchanger 510 and the third heat exchanger 520, and make full use of the heat of the engine water circuit 400 to heat the heat pump module 100, so that the heat pump module 100 can quickly generate heat.

[0115] In some specific embodiments of the present invention, Figure 1 As shown, the thermal management system 1 further includes a four-way valve 890, which has a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port and the second valve port are connected to the electric assembly water circuit 300. When the first valve port and the second valve port are connected, the electric assembly water circuit 300 is connected. The third valve port and the fourth valve port are connected to the engine water circuit 400. When the third valve port and the fourth valve port are connected, the engine water circuit 400 is connected. The first valve port and the second valve port are connected to form a first passage, and the third valve port and the fourth valve port are connected to form a second passage.

[0116] Among them, the first passage can be connected or disconnected, and the second passage can also be connected or disconnected. The electric assembly water circuit 300 and the engine water circuit 400 flow in the first passage and the second passage respectively. When the heat of the engine water circuit 400 or the electric assembly water circuit 300 is not needed, the circulation of the electric assembly water circuit 300 and the engine water circuit 400 can be disconnected by the four-way valve 890.

[0117] For example, Figure 3 As shown, when the outdoor heat exchanger 130 is used to realize independent cooling of the passenger compartment, the first passage and the second passage of the four-way valve 890 can be closed, and the refrigerant enters the outdoor heat exchanger 130 after being compressed by the compressor 110. At this time, the outdoor heat exchanger 130 is equivalent to a condenser. After releasing heat outside the vehicle, the refrigerant enters the indoor evaporator 140 to absorb heat inside the vehicle, thereby realizing a refrigeration cycle for the passenger compartment.

[0118] like Figure 5 As shown, when the outdoor heat exchanger 130 is used to cool the battery pack 210 alone, there is no need to use the heat of the electric assembly water circuit 300 and the engine water circuit 400. The refrigerant is compressed by the compressor 110 and enters the outdoor heat exchanger 130. At this time, the outdoor heat exchanger 130 is equivalent to a condenser. After releasing heat outside the vehicle, the refrigerant enters the first heat exchanger 500 through the third electromagnetic expansion valve 850, and exchanges heat with the battery water circuit 200 in the first heat exchanger 500, absorbs the heat of the battery water circuit 200, and then reduces the heat of the battery pack 210, avoids the temperature of the battery pack 210 being too high, and maintains normal power supply of the battery pack 210.

[0119] In addition, when the first valve port is connected with the fourth valve port and the second valve port is connected with the third valve port, the engine water circuit 400 is connected in series with the electric assembly water circuit 300, so that the cooling medium in the engine water circuit 400 and the cooling medium in the electric assembly water circuit 300 can circulate with each other, and the heat of the engine water circuit 400 and the heat of the electric assembly water circuit 300 can be transferred to each other. When the heat of the engine water circuit 400 or the electric assembly water circuit 300 is too high, the first radiator 430 and the second radiator 360 can be used simultaneously to dissipate heat for the engine water circuit 400 or the electric assembly water circuit 300, and the heat dissipation efficiency is high. Alternatively, the waste heat of the engine water circuit 400 and the waste heat of the electric assembly water circuit 300 can be used simultaneously to heat the passenger compartment or the battery pack 210, and the heat exchange efficiency is higher, further improving the energy utilization rate.

[0120] In some specific embodiments of the present invention, Figure 1 As shown, the electric assembly water circuit 300 includes an electric assembly 310, a fourth three-way valve 350, a second radiator 360 and a second direct branch 370. The second radiator 360 is connected in parallel with the second direct branch 370. The electric assembly 310 can be selectively connected in series with the second radiator 360 or the second direct branch 370. When the heat of the electric assembly water circuit 300 is insufficient or just right, the cooling medium can be controlled to flow through the second direct branch 370, thereby avoiding heat loss of the electric assembly 310 and improving energy utilization.

[0121] The fourth heat exchange path is connected in parallel with the electric assembly 310 , the fourth three-way valve 350 is connected to both ends of the electric assembly 310 , one end of the second radiator 360 is connected to the fourth three-way valve 350 and the other end is connected to the electric assembly 310 .

[0122] Among them, the electric assembly 310 mainly plays the role of driving the vehicle to move, and the second radiator 360 can be a low-temperature radiator, which is mainly used for heat dissipation of the electric assembly 310. When the heat of the electric assembly 310 is too high, it can be released into the air outside the vehicle through the second radiator 360. The fourth three-way valve 350 can control the on and off of the second radiator 360, and connect the second radiator 360 to the water circuit when the temperature of the electric assembly 310 is too high.

[0123] For example, Figure 6-Figure 9As shown, when the heat of the engine assembly 410 and the heat of the electric assembly 310 are sufficient or just right during driving in the hybrid mode, the warm air water circuit 600 can absorb the waste heat of the engine assembly 410 and the electric assembly 310, and use the heat of the engine assembly 410 and the electric assembly 310 to heat the passenger compartment through the warm air system 640. When the heat of the electric assembly 310 is excessive, the second radiator 360 can be connected to the electric assembly water circuit 300 through the fourth three-way valve 350, and the second radiator 360 can be used to dissipate the excess heat of the electric assembly 310 to avoid the electric assembly 310 from being overheated and to maintain the electric assembly 310 in normal working condition.

[0124] In some specific embodiments of the present invention, Figure 1 As shown, the electric assembly 310 includes an oil cooler 320 , a motor 330 , and an electronic control component 340 .

[0125] The oil cooler 320 has a seventh heat exchange path and an eighth heat exchange path. The eighth heat exchange path is connected in parallel with the fourth heat exchange path. The motor 330 is connected in series with the seventh heat exchange path. The electronic control component 340 is connected in series with the eighth heat exchange path.

[0126] Since the lubricating oil has thermal conductivity, the oil cooler 320 can cool the engine crankcase, clutch and valve assembly of the vehicle through which the lubricating oil passes. The motor 330 can drive the vehicle to move, and the electronic control component 340 can control the operation of the motor 330.

[0127] When the electric assembly water circuit 300 is running, the heat generated by the motor 330 and the electronic control component 340 can be transferred to the electric assembly water circuit 300. When heating the passenger compartment, the second heat exchanger 510 can absorb the waste heat of the electric assembly 310 and transfer the waste heat of the electric assembly 310 to the heat pump module 100, thereby assisting the heat pump module 100 in heating, increasing the temperature of the passenger compartment, and increasing the user's comfort. In this way, the energy of the electric assembly 310 can be fully utilized, thereby improving energy utilization.

[0128] In some specific embodiments of the present invention, Figure 1 As shown, the battery water path 200 includes a battery pack 210 , and the battery pack 210 is located upstream of the second heat exchange path.

[0129] The battery pack 210 can output electric energy to the electric assembly 310, so that the electric assembly 310 can operate to generate driving force to drive the vehicle. The battery pack 210 is located upstream of the second heat exchange path. After the battery water path 200 is in operation, it can ensure that the cooling medium first passes through the battery pack 210 and then passes through the first heat exchanger 500, so that the heat of the battery pack 210 can be transferred to the heat pump module 100 through the first heat exchanger 500, avoiding the heat loss of the battery pack 210 and further improving the energy utilization rate.

[0130] In some specific embodiments of the present invention, Figure 1 As shown, the heat pump module 100 includes a compressor 110 , an indoor condenser 120 , an outdoor heat exchanger 130 , and an indoor evaporator 140 .

[0131] One end of the indoor condenser 120 is connected to one end of the compressor 110, one end of the outdoor heat exchanger 130 is connected to the other end of the indoor condenser 120, one end of the outdoor heat exchanger 130 can be selectively connected to one end of the compressor 110, and the other end of the outdoor heat exchanger 130 can be selectively connected to the other end of the compressor 110. One end of the indoor evaporator 140 can be selectively connected to the other end of the outdoor heat exchanger 130, and the other end of the indoor evaporator 140 is connected to the other end of the compressor 110.

[0132] For example, one end of the outdoor heat exchanger 130 can be selectively connected to one end of the compressor 110 through the first electromagnetic expansion valve 800 and the first two-way valve 810, and one end of the outdoor heat exchanger 130 can be selectively connected to the other end of the indoor condenser 120 through the first electromagnetic expansion valve 800 and the first one-way valve 820. The first one-way valve 820 allows the refrigerant to flow from the outdoor heat exchanger 130 to the indoor condenser 120, and the first one-way valve 820 prevents the refrigerant from flowing from the indoor condenser 120 to the outdoor heat exchanger 130.

[0133] The other end of the outdoor heat exchanger 130 is connected to the other end of the compressor 110 through the second two-way valve 830, and the other end of the outdoor heat exchanger 130 can be selectively connected to one end of the indoor evaporator 140 through the second electromagnetic expansion valve 840. The other end of the indoor evaporator 140 is connected to the other end of the compressor 110 through the second one-way valve 890. The second one-way valve 890 allows the refrigerant to flow from the indoor evaporator 140 to the compressor 110, and the second one-way valve 890 prevents the refrigerant from flowing from the compressor 110 to the indoor evaporator 140.

[0134] So, like Figure 7 As shown, when the heat pump module 100 runs a heating cycle to heat the passenger compartment, the first electromagnetic expansion valve 800 is opened, the first two-way valve 810 is closed, and the second electromagnetic expansion valve 840 is closed. The refrigerant can be compressed by the compressor 110 and release heat in the indoor condenser 120 to heat the passenger compartment. The refrigerant then exchanges heat with the air outside the vehicle through the outdoor heat exchanger 130, absorbs the heat outside the vehicle, and then directly returns to the compressor 110 through the second two-way valve 830, thereby realizing heat exchange between the inside and outside of the vehicle, and using the heat outside the vehicle to heat the passenger compartment, thereby reducing energy consumption.

[0135] like Figure 3As shown, when the heat pump module 100 runs a refrigeration cycle to cool the passenger compartment, the first electromagnetic expansion valve 800 and the first two-way valve 810 are opened, the second two-way valve 830 is closed and the second electromagnetic expansion valve 840 is opened, and the refrigerant can be compressed by the compressor 110 and release heat in the outdoor heat exchanger 130, and then enter the indoor evaporator 140 through the second electromagnetic expansion valve 840 to absorb heat, thereby realizing heat exchange between the inside and outside of the vehicle, realizing the refrigeration cycle of the passenger compartment, and reducing energy consumption.

[0136] Optionally, one end of the first heat exchange path may selectively communicate with the other end of the indoor condenser 120 or the other end of the outdoor heat exchanger 130 , and the other end of the first heat exchange path may communicate with the other end of the compressor 110 .

[0137] For example, one end of the first heat exchange path is connected to the other end of the indoor condenser 120 through the fourth electromagnetic expansion valve 860, one end of the first heat exchange path is connected to the other end of the outdoor heat exchanger 130 through the third electromagnetic expansion valve 850, and the other end of the first heat exchange path is connected to the other end of the compressor 110 through the second one-way valve 890.

[0138] like Fig.17 As shown, when the passenger compartment needs to be heated, the first electromagnetic expansion valve 800, the second electromagnetic expansion valve 840 and the third electromagnetic expansion valve 850 can be closed, and the fourth electromagnetic expansion valve 860 can be opened. The refrigerant is compressed by the compressor 110 and enters the indoor condenser 120 to release heat to heat the passenger compartment. Then the refrigerant flows to the first heat exchange path and absorbs the waste heat of the battery pack 210 through the first heat exchanger 500, thereby improving the utilization rate of the waste heat of the battery pack 210.

[0139] Alternatively, the fourth electromagnetic expansion valve 860 and the second electromagnetic expansion valve 840 are closed, and the first electromagnetic expansion valve 800, the first two-way valve 810 and the third electromagnetic expansion valve 850 are opened. At this time, the refrigerant is compressed by the compressor 110 and enters the indoor condenser 120 to release heat to heat the passenger compartment, and then flows through the outdoor heat exchanger 130 and the first heat exchange path to achieve heat exchange between the vehicle and the outside and absorb the waste heat of the battery pack.

[0140] When it is necessary to cool the passenger compartment and the battery pack 210, the first electromagnetic expansion valve 800, the first two-way valve 810, the second electromagnetic expansion valve 840 and the third electromagnetic expansion valve 850 can be opened, and the fourth electromagnetic expansion valve 860 can be closed. The refrigerant is compressed by the compressor 110 and enters the outdoor heat exchanger 130 and the first heat exchange path, and then flows through the indoor evaporator 140 to cool the interior of the vehicle. In this way, the battery pack 210 can be cooled through the first heat exchanger 500.

[0141] In some specific embodiments of the present invention, Figure 1As shown, one end of the third heat exchange path is communicated with one end of the indoor condenser 120 , and the other end of the third heat exchange path is communicated with the other end of the compressor 110 .

[0142] Optionally, the thermal management system 1 also includes a fifth electromagnetic expansion valve 870, and the heat pump module 100 is connected to the third heat exchange path through the fifth electromagnetic expansion valve 870. When it is not necessary to use the heat of the electric assembly water circuit 300 to heat the heat pump module 100, the fifth electromagnetic expansion valve 870 can be closed to separate the electric assembly water circuit 300 from the heat pump module 100, so that heat exchange cannot be performed between the electric assembly water circuit 300 and the heat pump module 100.

[0143] For example, when the heat pump module 100 is heated only by the waste heat of the battery pack 210, the fifth electromagnetic expansion valve 870 can be closed and the fourth electromagnetic expansion valve 860 can be opened. In this way, the refrigerant of the heat pump module 100 may not pass through the second heat exchanger 510, but directly flow to the first heat exchanger 500 through the fourth electromagnetic expansion valve 860. The heat pump module 100 and the battery water circuit 200 can achieve heat exchange through the first heat exchanger 500, and the waste heat of the battery pack 210 is transferred to the heat pump module 100 through the first heat exchanger 500, so that the heat of the battery pack 210 can be used to heat the passenger compartment, thereby improving energy utilization.

[0144] 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-described embodiment of the present invention.

[0145] The vehicle according to the embodiment of the present invention can fully utilize the waste heat of the engine assembly 410, the electric assembly 310 and the battery pack 210 by utilizing the thermal management system 1 according to the above-mentioned embodiment of the present invention, and has the advantages of good heating effect and low energy consumption.

[0146] Other configurations and operations of the thermal management system 1 and the vehicle having the same according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0147] 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 present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0148] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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: Heat pump module, battery water circuit, electric assembly water circuit and engine water circuit; A first heat exchanger, wherein the first heat exchanger has a first heat exchange passage and a second heat exchange passage, wherein the first heat exchange passage is connected to the heat pump module, and the second heat exchange passage is connected to the battery water passage; A second heat exchanger, wherein the second heat exchanger has a third heat exchange passage and a fourth heat exchange passage, the third heat exchange passage is connected to the heat pump module, and the fourth heat exchange passage is connected to the electric assembly water circuit; a third heat exchanger, the third heat exchanger having a fifth heat exchange passage and a sixth heat exchange passage, the fifth heat exchange passage being connected to the electric assembly water circuit, and the sixth heat exchange passage being connected to the engine supercharger of the engine water circuit; The engine water circuit can selectively switch between three states: self-circulation conduction, series connection with the battery water circuit, and series connection with the electric assembly water circuit; Wherein, when the engine water circuit is self-circulating, the heat pump module exchanges heat with the engine water circuit through the second heat exchanger and the third heat exchanger; When the engine water circuit is connected in series with the battery water circuit, the engine water circuit and the battery water circuit exchange heat with the heat pump module through the first heat exchanger; When the engine water circuit is connected in series with the electric assembly water circuit, the heat pump module absorbs heat from the engine water circuit through the second heat exchanger.

2. The thermal management system according to claim 1, characterized in that: Also includes: A warm air water path, the warm air water path being connected between the engine water path and the battery water path; The heater water circuit can be selectively connected in series with or disconnected from the battery water circuit, and the heater water circuit can be selectively connected in series with or disconnected from the engine water circuit.

3. The thermal management system according to claim 2, characterized in that: The warm air water circuit comprises: A circulation branch, the circulation branch can be selectively connected in series with the battery water circuit or disconnected; a first connecting branch, one end of which is connected to the circulation branch and the other end of which is connected to the engine water circuit; a second connecting branch, one end of which is connected to the circulation branch and the other end of which is connected to the engine water circuit; a warm air system, the warm air system being connected to the circulation branch and being located between the first connecting branch and the second connecting branch; The circulation branch can be selectively connected or disconnected in series with the engine water circuit through the first connecting branch and the second connecting branch.

4. The thermal management system according to claim 3, characterized in that: The circulation branch is connected to the battery water path through a first three-way valve, the first three-way valve having a first port, a second port and a third port, the first port being connected to one end of the battery water path, the second port, the other end of the battery water path and one end of the circulation branch being connected to each other, and the third port being connected to the other end of the circulation branch; When the first port is connected to the third port, the circulation branch is connected in series with the battery water circuit.

5. The thermal management system according to claim 3, characterized in that: The warm air water circuit also includes: A heater is connected to the circulation branch and is connected in series with the warm air system.

6. The thermal management system according to claim 5, characterized in that: The heater comprises: A PTC and an engine exhaust collection pipe, wherein the PTC and the engine exhaust collection pipe are connected in parallel; The warm air water circuit also includes a second three-way valve, which is connected to the circulation branch and is respectively connected to the PTC, the engine exhaust collection pipe and the warm air system, and is used to control at least one of the PTC and the engine exhaust collection pipe to be connected to the warm air system.

7. The thermal management system according to claim 3, characterized in that: The warm air water circuit also includes: a third three-way valve, the third three-way valve having a fourth port, a fifth port and a sixth port, the fourth port, one end of the first connecting branch and one end of the warm air system are connected to each other, the fifth port is connected to one end of the second connecting branch, and the sixth port is connected to the other end of the warm air system; When the fifth port is connected to the sixth port, the circulation branch is connected to the engine water circuit in series.

8. The thermal management system according to claim 1, characterized in that: The engine water circuit comprises: An engine assembly, a first radiator and a first direct branch, wherein the first radiator is connected in parallel with the first direct branch, and the engine assembly can be selectively connected in series with the first radiator or the first direct branch.

9. The thermal management system according to claim 8, characterized in that: Also includes: A warm air water circuit, the warm air water circuit being connected between the engine water circuit and the battery water circuit, one end of the warm air water circuit being connected to one end of the engine assembly, and the other end of the warm air water circuit being connected to the other end of the engine assembly; The warm air water circuit can be selectively connected in series with or disconnected from the battery water circuit, and the warm air water circuit can be selectively connected in series with or disconnected from the engine assembly.

10. The thermal management system according to claim 1, characterized in that: Also includes: A four-way valve, the four-way valve having a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port and the second valve port being connected to the electric assembly water circuit, the third valve port and the fourth valve port being connected to the engine water circuit; When the first valve port is communicated with the fourth valve port and the second valve port is communicated with the third valve port, the engine water circuit is communicated with the electric assembly water circuit in series.

11. The thermal management system according to claim 1, characterized in that: The electric assembly water circuit includes: The electric assembly, the fourth heat exchange path is connected in parallel with the electric assembly; A second radiator and a second direct-connection branch, wherein the second radiator and the second direct-connection branch are connected in parallel, and the electric assembly can be selectively connected in series with the second radiator or the second direct-connection branch.

12. The thermal management system according to claim 11, characterized in that: The electric assembly comprises: an oil cooler, the oil cooler having a seventh heat exchange passage and an eighth heat exchange passage, the eighth heat exchange passage being connected in parallel with the fourth heat exchange passage; A motor, the motor being connected in series with the seventh heat exchange path; An electric control component is connected in series with the eighth heat exchange path.

13. The thermal management system according to claim 1, characterized in that: The battery water circuit comprises: A battery pack is located upstream of the second heat exchange path.

14. The thermal management system according to claim 1, characterized in that: The heat pump module comprises: compressor; An indoor condenser, one end of the indoor condenser being connected to one end of the compressor; an outdoor heat exchanger, one end of which is in communication with the other end of the indoor condenser and can be selectively in communication with the one end of the compressor, and the other end of which can be selectively in communication with the other end of the compressor; An indoor evaporator, one end of the indoor evaporator can be selectively communicated with the other end of the outdoor heat exchanger, and the other end of the indoor evaporator is communicated with the other end of the compressor.

15. The thermal management system according to claim 14, characterized in that: One end of the first heat exchange path can selectively communicate with the other end of the indoor condenser or the other end of the outdoor heat exchanger, and the other end of the first heat exchange path communicates with the other end of the compressor.

16. The thermal management system according to claim 14, characterized in that: One end of the third heat exchange path is communicated with the one end of the indoor condenser, and the other end of the third heat exchange path is communicated with the other end of the compressor.

17. A vehicle, characterized in that: Comprising a thermal management system according to any one of claims 1-16.

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