Thermal management system and vehicle

Abstract

The invention discloses a thermal management system and a vehicle, an eleven-way valve is provided with a first interface to an eleventh interface which can be selectively communicated, the first interface to the eleventh interface are correspondingly communicated with a first flow path to an eleventh flow path, and a battery cooler is connected between the first flow path and a second flow path; the cold plate and the cooling core body are arranged between the third flow path and the fourth flow path in parallel, the heating core body and the battery cooler are sequentially connected between the fifth flow path and the sixth flow path, the low-temperature radiator is connected between the seventh flow path and the eighth flow path, and the power assembly cooling piece is connected between the ninth flow path and the tenth flow path; wherein a first proportional three-way valve is arranged on the third flow path, a first opening of the first proportional three-way valve is connected with the third flow path, a second opening and a third opening of the first proportional three-way valve are connected with the cold plate and the cooling core body respectively, and an outlet of the cold plate and an outlet of the cooling core body are connected with the fourth flow path. Therefore, high integration of the control valve and reuse of at least part of flow paths can be achieved, and rapid heating of the passenger compartment can be achieved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a thermal management system and a vehicle. Background Art

[0002] In the related art, in the thermal management system, the temperature regulation requirements of the passenger compartment, power battery, powertrain, etc. are achieved through a cooling medium (such as a cooling medium). There are a large number of components that need to be temperature regulated, and the temperature regulation requirements between different components may be different. For example, some components need to be cooled, while some components need to be heated, resulting in a large number of thermal management system pipelines, complex pipelines, high costs, difficulty in layout, and poor user experience. Summary of the invention

[0003] 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, which has a high degree of integration, a simple structure and a good user experience.

[0004] The present application further proposes a vehicle adopting the above thermal management system.

[0005] In the first aspect, the present application proposes a thermal management system, including: a refrigerant side component, a cooling medium side component and an eleven-way valve, wherein the refrigerant side component has a condenser and a battery cooler, and the cooling medium side component includes: a heating core, a cooling core, a cold plate, a low-temperature radiator and a powertrain cooling component, and the eleven-way valve has a first interface to an eleventh interface that can be selectively connected, and the first interface to the eleventh interface are correspondingly connected with a first flow path to the eleventh flow path, the battery cooler is connected between the first flow path and the second flow path, and the cold plate and the cooling core are connected. It is arranged in parallel between the third flow path and the fourth flow path, the heating core and the condenser are connected in sequence between the fifth flow path and the sixth flow path, the low-temperature radiator is connected between the seventh flow path and the eighth flow path, and the powertrain cooling component is connected between the ninth flow path and the tenth flow path; wherein a first proportional three-way valve is arranged on the third flow path, the first port of the first proportional three-way valve is connected to the third flow path, the second port and the third port of the first proportional three-way valve are connected to the cold plate and the cooling core respectively, and the cold plate outlet and the cooling core outlet are connected to the fourth flow path.

[0006] According to the thermal management system of the embodiment of the present application, by providing an eleven-way valve and a first proportional three-way valve, and connecting the cooling core and the cold plate in parallel, the third flow path and the fourth flow path can be reused, and a high degree of integration of the control valve can be achieved, so as to reduce the number and length of pipelines in the thermal management system, improve the degree of integration, and reduce costs. The cooling core and the heating core can be connected in series to achieve heating, increase the heat exchange area, improve the heat exchange efficiency, achieve rapid heating of the passenger compartment, and also improve the user experience.

[0007] According to some embodiments of the present application, one end of the eleventh flow path is connected to the eleventh interface, the other end of the eleventh flow path is connected to the seventh flow path, the eleventh interface is connected to the powertrain outlet to form a bypass flow path, and a second proportional three-way valve is provided on the eighth flow path, the fourth port of the second proportional three-way valve is connected to the low-temperature radiator, the fifth port is connected to the ninth flow path, and the sixth port is connected to the eighth interface.

[0008] According to some embodiments of the present application, a first pump is disposed in the first flow path or the second flow path, a second pump is disposed in the fifth flow path or the sixth flow path, and a third pump is disposed in the ninth flow path or the tenth flow path.

[0009] Furthermore, a heater is provided in the fifth flow path or the sixth flow path, and the heater is provided at one end of the heating core adjacent to the condenser, and the fifth flow path can be selectively connected to the fourth flow path so that the cooling core and the heating core are connected in series.

[0010] According to some embodiments of the present application, the thermal management system further includes: a self-circulating flow path, one end of which is connected to the inlet of the cold plate, and the other end of which is connected to the inlet of the cold plate to achieve self-circulation of the cold plate.

[0011] Furthermore, a fourth pump and a first one-way valve are provided in the self-circulating flow path, and the first one-way valve unidirectionally conducts the outlet of the cold plate to the inlet of the cold plate.

[0012] According to some embodiments of the present application, the cooling medium side component also includes: an overflow pot, a first branch of the overflow pot is connected to the fourth flow path, a second branch is connected to the rehydration exhaust port on the low-temperature radiator, and a third branch is connected to the ninth flow path, and a second one-way valve is arranged in the second branch, and the second one-way valve unidirectionally guides the low-temperature radiator to the overflow pot.

[0013] According to some embodiments of the present application, the refrigerant side component also includes: a compressor, a heat exchanger, a liquid storage tank and a first electronic expansion valve, the outlet of the compressor, the condenser, the liquid storage tank, the high-pressure refrigerant inlet of the heat exchanger, the high-pressure refrigerant outlet, the first electronic expansion valve, the battery cooler, the low-pressure refrigerant inlet of the heat exchanger, the low-pressure refrigerant outlet, and the inlet of the compressor are connected in sequence, the heat exchanger has a high-pressure refrigerant pipeline and a low-pressure refrigerant pipeline, one of the high-pressure refrigerant pipeline and the low-pressure refrigerant pipeline is constructed as a coaxial tube or a capillary tube, and the refrigerant medium flowing in the refrigerant side component includes but is not limited to: R290, R134a, R1234yf.

[0014] Furthermore, the refrigerant side component also includes: a second electronic expansion valve and a refrigerator cooler, the inlet of the second electronic expansion valve is connected to the outlet of the first electronic expansion valve, the outlet of the second electronic expansion valve is connected to the refrigerator cooler, and the refrigerator cooler is connected to the heat exchanger; the cooling medium side component also includes: a refrigerator, a third proportional three-way valve and a fifth pump, the seventh port of the third proportional three-way valve is connected to the refrigerator and the fifth pump in sequence, the eighth port is connected to the refrigerator cooler, and the ninth port is connected to the condenser, and the refrigerator cooler, the third proportional three-way valve, the refrigerator and the fifth pump constitute a refrigerator refrigeration circuit, and the condenser, the third proportional three-way valve, the refrigerator and the fifth pump constitute the refrigerator heating circuit.

[0015] In some embodiments, the valve body of the eleven-way valve is integrated with a first valve system and a second valve system, the first valve system has eight interfaces, the second valve system has seven interfaces, and the two interfaces in the first valve system are connected with the two interfaces in the second valve system, so that the first valve system defines the first interface to the sixth interface, and the second valve system defines the seventh interface to the eleventh interface, or a seven-way valve is combined with an eight-way valve, and the eight-way valve defines the first interface to the sixth interface, and the seven-way valve defines the seventh interface to the eleventh interface.

[0016] In a second aspect, an embodiment of the present application proposes a vehicle, comprising: a thermal management system as described in any one of the above embodiments.

[0017] 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

[0018] 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:

[0019] Figure 1is a schematic diagram of a thermal management system according to an embodiment of the present application;

[0020] Figure 2-Figure 7 is a schematic diagram of a thermal management system in first to sixth modes according to an embodiment of the present application;

[0021] Figure 8 is a comparison diagram of the connecting pipelines of the eleven-way valve in the first mode to the sixth mode according to the embodiment of the present application;

[0022] Fig. 9 is a schematic diagram of an eleven-way valve according to an embodiment of the present application;

[0023] Fig.10 is a schematic diagram of an eleven-way valve according to another embodiment of the present application;

[0024] Fig.11 It is a schematic diagram of the coordination between the refrigerator, the third proportional three-way valve, the fifth pump and the refrigerant side components according to an embodiment of the present application.

[0025] Reference numerals:

[0026] Thermal management system 100,

[0027] Refrigerant side component 10, condenser 11, battery cooler 12, compressor 13, heat exchanger 14, first electronic expansion valve 15, liquid storage tank 16, second electronic expansion valve 17, refrigerator cooler 18, first temperature and pressure sensor 191, second temperature and pressure sensor 192, third temperature and pressure sensor 193,

[0028] Cooling medium side component 20, heating core 21, cooling core 22, cold plate 23, low temperature radiator 24, powertrain cooling element 25, first pump 261, second pump 262, third pump 263, fourth pump 264, heater 27, first check valve 281, second check valve 282, overflow pot 29,

[0029] Eleven-way valve 30, first interface 301, second interface 302, third interface 303, fourth interface 304, fifth interface 305, sixth interface 306, seventh interface 307, eighth interface 308, ninth interface 309, tenth interface 310, eleventh interface 311,

[0030] The first valve system 30a, the second valve system 30b, the seven-way valve 30c, and the eight-way valve 30d.

[0031] A first proportional three-way valve 40, a second proportional three-way valve 50, a third proportional three-way valve 601, a refrigerator 602, a fifth pump 603,

[0032] The first flow path 101, the second flow path 102, the third flow path 103, the fourth flow path 104, the fifth flow path 105, the sixth flow path 106, the seventh flow path 107, the eighth flow path 108, the ninth flow path 109, the tenth flow path 110, the eleventh flow path 111, the self-circulating flow path 112, the first branch 113, the second branch 114, and the third branch 115. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0035] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0038] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0039] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “cooling medium flat”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0040] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0041] In the description of the present invention, a first feature “on”, “above” and “over” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the cooling medium level of the first feature is higher than that of the second feature.

[0042] The term "plurality" used in the present application refers to two or more (including two).

[0043] First of all, it should be pointed out that according to regulatory requirements, in the research on new generation refrigerant alternatives, R290 has become a popular alternative refrigerant for automotive air conditioners due to its advantages such as low GWP, high latent heat of vaporization, high evaporation pressure and low price. However, due to the flammability of R290 refrigerant and the restrictions on the filling amount of flammable refrigerants in regulations, it has many limitations in actual promotion and application.

[0044] In the thermal management mode, the needs of the passenger compartment, power battery and powertrain are fully met by the cooling medium circuit, and in some modes, the cooling medium flow rate needs to be proportionally adjusted to meet the thermal management needs of the components. Usually, multiple control valves are required to switch the working mode, which is complex in structure and costly. Or an integrated control valve is used, which is composed of several three-way, four-way and five-way valves combined with a valve island. In essence, it is not "a valve". It is bulky and the control strategy of multiple valves is relatively complicated. Or a multi-way valve with more than ten valve ports is used, but there are many modes and its internal flow channel structure is difficult to achieve.

[0045] Therefore, in the thermal management system, how to ensure the safe use of refrigerants and improve the integration of cooling medium circuits, save occupied space, manage decentralized thermal management systems to reduce energy waste, and simplify control strategies have become technical problems that technical personnel in this field urgently need to solve.

[0046] Based on this, the present application proposes a thermal management system. The thermal management system of the embodiment of the present application, in view of the above-mentioned shortcomings of the prior art, reduces the risk of refrigerant leakage, reduces the refrigerant filling amount, and improves the safety of the thermal management system through the design of a single refrigerant circuit. All cooling medium circuits are connected through eleven-way valves. While having the multi-functions of refrigeration, heating, dehumidification, and defrosting, the multi-way valve has fewer switching modes, which is conducive to simplifying the control strategy. It is also highly integrated in structure and saves space.

[0047] That is to say, in the embodiment of the present application, through the setting of the eleven-way valve and the related flow path, a more efficient refrigerant (such as R290) can be used, and the safety requirements can be met, while the functions are richer and the integration is higher.

[0048] Reference below Figure 1-Figure 11 A thermal management system 100 and a vehicle according to an embodiment of the present invention are described.

[0049] like Figure 1As shown, the present application proposes a thermal management system 100, including: a refrigerant side component 10, a cooling medium side component 20 and an eleven-way valve 30, the refrigerant side component 10 has a condenser 11 and a battery cooler 12, the cooling medium side component 20 includes: a heating core 21, a cooling core 22, a cold plate 23, a low-temperature radiator 24 and a powertrain cooling member 25, the eleven-way valve 30 has a first interface 310 to an eleventh interface 311 that can be selectively connected, and the first interface 310 to the eleventh interface 311 correspond to The first flow path 101 to the eleventh flow path 111 are connected, the battery cooler 12 is connected between the first flow path 101 and the second flow path 102, the cold plate 23 and the cooling core 22 are arranged in parallel between the third flow path 103 and the fourth flow path 104, the heating core 21 and the condenser 11 are connected between the fifth flow path 105 and the sixth flow path 106 in sequence, the low-temperature radiator 24 is connected between the seventh flow path 107 and the eighth flow path 108, and the powertrain cooling component 25 is connected between the ninth flow path 109 and the tenth flow path 110.

[0050] Among them, the refrigerant side component 10 constitutes a refrigerant side loop, and the cooling medium side component 20 constitutes a cooling medium side loop. The refrigerant side loop can heat the cooling medium through the condenser 11, and the heated cooling medium can participate in the temperature increase regulation process of the refrigerant side component 10, such as: heating of the battery, heating of the passenger compartment, etc., and can also be cooled by the battery cooler 12, and the cooling medium that has completed cooling can participate in the temperature decrease regulation process of the refrigerant side component 10, such as: cooling of the passenger compartment, cooling of the battery, cooling of the powertrain, etc., and through the heat exchange between the refrigerant and the cooling medium, the internal temperature of the passenger compartment is regulated. During the temperature regulation process of the entire passenger compartment, the refrigerant no longer enters the side of the passenger compartment, so that the refrigerant is away from the passenger compartment, which can improve the system safety and enable the thermal management system 100 of the embodiment of the present application to meet the use requirements of the new refrigerant.

[0051] It should be noted that the refrigerant side component 10 can be integrated and packaged in the cabin to reduce the risk of refrigerant leakage, reduce the refrigerant filling amount, and improve safety. The refrigerant side module and the cooling medium side module are designed independently, and can be divided or assembled as a whole according to the vehicle layout requirements, increasing the flexibility of vehicle layout.

[0052] In other words, the cooling medium side component 20 and the refrigerant side component 10 can be independently arranged, and the passenger compartment, power battery and powertrain are all temperature-regulated by the cooling medium. The cooling medium side component 10 (i.e., a plurality of loads) is connected to the eleven-way valve 30, and the integration is higher.

[0053] Specifically, the battery cooler 12, the first flow path 101, the first interface 310, the second interface 302, and the second flow path 102 constitute a low-temperature medium circuit, the third interface 303, the third flow path 103, the cold plate 23, the fourth flow path 104, and the fourth interface 304 can constitute a cold plate circuit, the third interface 303, the third flow path 103, the cooling core 22, the fourth flow path 104, and the fourth interface 304 can constitute a cooling core circuit, the fifth interface 305, the fifth flow path 105, the heating core 21, the condenser 11, the sixth flow path 106, and the sixth interface 306 can constitute a high-temperature medium circuit, the seventh interface 307, the seventh flow path 107, the low-temperature radiator 24, the eighth flow path 108, and the eighth interface 308 can constitute a low-temperature radiator circuit, and the ninth interface 309, the ninth flow path 109, the powertrain cooling component 25, the tenth flow path 110, and the tenth interface 310 can constitute a powertrain circuit.

[0054] The low-temperature medium circuit is connected with one or more of the cold plate circuit, the cooling core circuit, the low-temperature radiator circuit, and the power assembly circuit to achieve cooling of the corresponding circuit. The high-temperature medium circuit is connected with one or more of the cold plate circuit, the cooling core circuit, the low-temperature radiator circuit, and the power assembly circuit to achieve cooling of the corresponding circuit. By simultaneously controlling two or more of the cold plate circuit, the cooling core circuit, the low-temperature radiator circuit, and the power assembly circuit to be connected in series, waste heat recovery can be achieved.

[0055] Furthermore, a first proportional three-way valve 40 is provided on the third flow path 103, a first port of the first proportional three-way valve 40 is connected to the third flow path 103, a second port and a third port of the first proportional three-way valve 40 are respectively connected to the cold plate 23 and the cooling core 22, and the outlet of the cold plate 23 and the outlet of the cooling core 22 are connected to the fourth flow path 104.

[0056] Thus, the cooling core 22 and the cold plate 23 (i.e., the cooling structure for cooling the power battery) are connected in parallel through the first proportional three-way valve 40, and the cooling core 22 and the cold plate 23 can reuse the first flow path 101 and the second flow path 102 to simplify the structure of the thermal management system 100 and reduce costs.

[0057] It should be pointed out that a first proportional three-way valve 40 is arranged between the cold plate 23 and the cooling core 22. Through the setting of the first proportional three-way valve 40, the flow control between the cold plate circuit and the cooling core circuit can be accurately controlled to accurately control the different temperature requirements of the cold plate and the passenger compartment. Compared with the prior art, the structure of the cold plate circuit and the cooling core circuit can be simplified, for example, the use of one three-way valve can be reduced, thereby reducing costs.

[0058] According to the thermal management system 100 of the embodiment of the present application, by providing an eleven-way valve 30 and a first proportional three-way valve 40, and connecting the cooling core 22 and the cold plate 23 in parallel, the third flow path 103 and the fourth flow path 104 can be reused, and a high degree of integration of the control valve can be achieved, so as to reduce the number and length of pipelines of the thermal management system 100, improve the degree of integration, and reduce costs. The cooling core 22 and the heating core 21 can be connected in series to achieve heating, increase the heat exchange area, improve the heat exchange efficiency, achieve rapid heating of the passenger compartment, and also improve the user experience.

[0059] According to some embodiments of the present application, one end of the eleventh flow path 111 is connected to the eleventh interface 311, the other end of the eleventh flow path 111 is connected to the seventh flow path 107, the eleventh interface 311 is connected to the powertrain outlet to form a bypass flow path, and a second proportional three-way valve 50 is provided on the eighth flow path 108, the fourth port of the second proportional three-way valve 50 is connected to the low-temperature radiator 24, the fifth port is connected to the ninth flow path 109, and the sixth port is connected to the eighth interface 308.

[0060] Specifically, an eleventh flow path 111 is further provided, and the eleventh flow path 111 can bypass the seventh flow path 107, so that the cooling medium flowing out of the powertrain can be refluxed through the tenth flow path 110, and can also bypass to the seventh flow path 107 through the eleventh flow path 111. The second proportional three-way valve 50 is provided so that the part of the eighth flow path 108 located at the sixth port and the eighth interface 308 can be a two-way flow path, which can realize the cooling medium flowing from the sixth port to the eighth interface 308, and can also realize the flow of the eighth interface 308 to the sixth port.

[0061] Therefore, under extreme cooling conditions, the powertrain circuit can be connected in parallel with the low-temperature radiator circuit to dissipate heat to the outside through the low-temperature radiator 24, and through the bypass circuit, the cooling medium at the powertrain outlet and the cooling medium at the condenser 11 outlet are mixed and enter the low-temperature radiator 24, so as to avoid the high-temperature cooling medium entering the low-temperature radiator 24 first and then entering the powertrain, causing the return water temperature of the condenser 11 to be too high, resulting in a decrease in the heat dissipation effect, and ensuring the refrigeration stability and reliability of the powertrain circuit under the premise of meeting the greater heat dissipation requirements under extreme cooling conditions; and under heating conditions, the second proportional three-way valve 50 is set so that the fourth port can be selectively connected to the fifth port, and / or the sixth port, so as to switch between the heat pump and waste heat recovery. When the heat pump mode is running, the third pump 263 is running, and the powertrain circuit stores heat. When the heat storage temperature reaches the level where waste heat recovery can be performed, the waste heat recovery mode is switched to improve the energy efficiency ratio of the thermal management system 100. In the embodiment of the present application, the low-temperature radiator 24 serves as an air source heat pump, and the powertrain circuit serves as a water source heat pump. There is a difference in the heat absorption temperature, which may cause the power consumption of the compressor 13 to increase. After the heat storage temperature reaches the required temperature, the waste heat is recovered in the present application, which can reduce the energy consumption of the thermal management system 100 and simplify the complexity of the thermal management system 100.

[0062] At the same time, it should be pointed out that, with the setting of the second proportional three-way valve 50, at least a portion of the eighth flow path 108 can be formed as a two-way flow channel. During defrosting, the cooling medium in the powertrain can flow back into the low-temperature radiator 24 to achieve defrosting of the low-temperature radiator 24 by the waste heat of the powertrain. In other modes, the cooling medium in the low-temperature radiator 24 can flow back to the eleven-way valve 30.

[0063] Furthermore, by setting up the bypass flow path, the powertrain circuit can be connected to the bypass flow path while reducing the complexity of integration, facilitating the realization of complex flow channel design on the water side, and enriching the thermal management function mode of the whole vehicle, so that the powertrain flow path can be self-circulated through the third pump 263, and the powertrain can be controlled to work within the optimal temperature range, thereby avoiding local overheating damage of the powertrain, and the high-temperature cooling medium can be switched to the condenser 11 through the eleven-way valve 30. It can enter the low-temperature radiator 24 in parallel, which can realize rapid cooling of the powertrain, simplify the control difficulty under the extreme cooling condition of the powertrain, and quickly realize the waste heat recovery of the low-temperature radiator 24 and the powertrain (motor). The waste heat recovery is carried out after the powertrain stores heat, which can meet the refined management of the power battery and the passenger compartment heating conditions and reduce energy consumption.

[0064] like Figure 1As shown, according to some embodiments of the present application, a first pump 261 is disposed in the first flow path 101 or the second flow path 102 , a second pump 262 is disposed in the fifth flow path 105 or the sixth flow path 106 , and a third pump 263 is disposed in the ninth flow path 109 or the tenth flow path 110 .

[0065] Thus, the first pump 261 , the second pump 262 and the third pump 263 can provide power for the corresponding circuits to realize the circulation of the cooling medium, and the circulation efficiency of the cooling medium can be improved to improve the temperature regulation effect and temperature regulation efficiency of the thermal management system 100 .

[0066] Furthermore, a heater 27 is provided in the fifth flow path 105 or the sixth flow path 106 . The heater 27 is provided at one end of the heating core 21 adjacent to the condenser 11 , and the fifth flow path 105 can be selectively connected to the fourth flow path 104 so that the cooling core 22 and the heating core 21 are connected in series.

[0067] Among them, the cooling core 22 is connected to the third flow path 103 and the fourth flow path 104, and the heating core 21 is connected to the fifth flow path 105 and the sixth flow path 106, so that the cooling core 22 and the heating core 21 can be connected in series. When heating the passenger compartment, the heating core circuit, the cooling core circuit and the high-temperature medium circuit can be connected to realize the dual-core heating function of the heating core 21 and the cooling core 22. For the indirect heat exchange of the thermal management system, by increasing the heat exchange area, the energy loss caused by the secondary heat exchange can be compensated, that is, the heat exchange area is increased to improve the heating efficiency and achieve faster heating. Therefore, through the setting of the heater 27, the condenser 11 and the heater 27 can cooperate to heat the cooling medium flowing through the heating core 21, so that the temperature of the cooling medium can be higher, so as to further improve the efficiency of the heating core 21 in regulating the temperature in the passenger compartment and improve the user experience.

[0068] like Figure 1 As shown, according to some embodiments of the present application, the thermal management system 100 also includes: a self-circulation flow path 112, one end of the self-circulation flow path 112 is connected to the inlet of the cold plate 23, and the other end of the self-circulation flow path 112 is connected to the inlet of the cold plate 23 to achieve self-circulation of the cold plate 23.

[0069] Therefore, by adding a self-circulation loop and controlling the first proportional three-way valve 40, the cold plate loop and the cooling core loop can be adjusted separately to meet the different cooling requirements of the passenger compartment and the power battery, and then by opening the self-circulation flow path 112, the self-circulation temperature regulation of the power battery is achieved to maintain a uniform temperature of the power battery.

[0070] It should be noted that the fourth pump 264 and the first one-way valve 281 are disposed in the self-circulating flow path 112 , and the first one-way valve 281 unidirectionally conducts the flow from the outlet of the cold plate 23 to the inlet of the cold plate 23 .

[0071] More importantly, the fourth pump 264 and the first one-way valve 281 can realize self-circulation of the cold plate circuit, so that the power battery can maintain a uniform temperature. The existing cold plate circuit and the cooling core circuit are non-parallel structures, and a three-way valve needs to be separately set up to establish a self-circulation circuit with the fourth pump 264. The present application can save the more expensive three-way valve structure and replace it with the first one-way valve 281, and can also further simplify the circuit and reduce costs.

[0072] According to some embodiments of the present application, the cooling medium side component 20 also includes: an overflow pot 29, the first branch 113 of the overflow pot 29 is connected to the fourth flow path 104, the second branch 114 is connected to the rehydration exhaust port of the low-temperature radiator 24, the third branch 115 is connected to the ninth flow path 109, and a second one-way valve 282 is arranged in the second branch 114, and the second one-way valve 282 unidirectionally guides the low-temperature radiator 24 to the overflow pot 29.

[0073] Specifically, the low-temperature radiator 24 has a refilling and exhaust port, which is connected to the second branch 114, and the first branch 113 is connected to the fourth flow path 104, and the third branch 115 is connected to the ninth flow path 109, so that the refilling port of the overflow pot 29 can be connected to the fourth flow path 104 and the ninth flow path 109 respectively, and then according to the cooling or heating requirements, one refilling port of the overflow pot 29 can be controlled to replenish the first pump 261 and the second pump 262 (to replenish the high-temperature cooling medium or the low-temperature cooling medium), while the other refilling port can be used to replenish the third pump 263, so as to replenish the powertrain circuit when the powertrain circuit is self-circulating. The refilling port of the overflow pot 29 connected to the refilling and exhaust port can be used to replenish the low-temperature radiator circuit, so as to realize the refilling requirements under the conditions of waste heat recovery and high-temperature heat dissipation.

[0074] In this way, by setting the overflow pot 29, the pressure of the entire cooling medium side component 20 can be kept balanced, the gaseous cooling medium can be discharged in time, and the stability and reliability of the cooling medium side component 20 can be improved.

[0075] like Fig. 9 As shown, in some embodiments, the valve body of the eleven-way valve 30 is integrated with a first valve system 30a and a second valve system 30b, the first valve system 30a has eight interfaces, the second valve system 30b has seven interfaces, and two interfaces in the first valve system 30a are connected with two interfaces in the second valve system 30b, so that the first valve system 30a defines a first interface 310 to a sixth interface 306, and the second valve system 30b defines a seventh interface 307 to an eleventh interface 311; as shown in FIG. Fig.10As shown, in other embodiments, a seven-way valve 30c is combined with an eight-way valve 30d, and the eight-way valve 30d defines the first interface 310 to the sixth interface 306, and the seven-way valve 30c defines the seventh interface 307 to the eleventh interface 311.

[0076] In this way, on the one hand, under the premise of satisfying the above functions and effectively enriching the working mode of the thermal management system 100, the control of the thermal management system 100 can be achieved through two valve systems or two valve bodies, and the switching difficulty is lower, which is conducive to simplifying the control strategy, further improving the degree of integration, and reducing the space occupancy of the thermal management system 100. On the other hand, the eleven-way valve 30 can be a composite valve system or a combined multi-way valve. The processing difficulty of the eleven-way valve 30 is lower and the cost is lower.

[0077] It should be pointed out that the eleven-way valve 30 can be a composite valve system or a combined multi-way valve, which has a higher degree of integration, and the internal flow channel space of the eleven-way valve 30 is less difficult to construct and process, which can reduce the difficulty of development.

[0078] In some embodiments, the refrigerant side component 10 also includes: a compressor 13, a heat exchanger 14, a liquid storage tank 16 and a first electronic expansion valve 15. The outlet of the compressor 13, the condenser 11, the liquid storage tank 16, the high-pressure refrigerant inlet of the heat exchanger 14, the high-pressure refrigerant outlet, the first electronic expansion valve 15, the battery cooler 12, the low-pressure refrigerant inlet of the heat exchanger 14, the low-pressure refrigerant outlet, and the inlet of the compressor 13 are connected in sequence. The heat exchanger 14 has a high-pressure refrigerant pipeline and a low-pressure refrigerant pipeline, and one of the high-pressure refrigerant pipeline and the low-pressure refrigerant pipeline is constructed as a coaxial tube or a capillary tube.

[0079] Specifically, the heat exchanger 14 includes a high-pressure refrigerant pipeline and a low-pressure refrigerant pipeline, and one of the high-pressure refrigerant pipeline and the low-pressure refrigerant pipeline is configured as a coaxial tube or a capillary tube.

[0080] That is to say, by setting up the heat exchanger 14, heat exchange can be achieved between the high-temperature and high-pressure refrigerant and the low-temperature and low-pressure refrigerant during the flow of the refrigerant in the refrigerant side circuit, so as to increase the subcooling degree before the refrigerant is throttled and the superheating degree before the compressor 13 is sucked in, so as to improve the energy efficiency of the thermal management system 100, reduce the system performance degradation caused by the refrigerant not directly participating in the heat dissipation of the cooling medium side component 20, and ensure that the thermal management system 100 has a good temperature regulation effect and temperature regulation efficiency, that is, by increasing the subcooling degree and the superheating degree, while increasing the cooling capacity of the system, the probability of liquid refrigerant entering the compressor 13 can be reduced, so as to improve the liquid hammer phenomenon and improve reliability and safety.

[0081] Furthermore, the refrigerant medium flowing in the refrigerant side component in the embodiment of the present application includes, but is not limited to: R290, R134a, R1234yf, etc., which has a higher energy efficiency ratio and can improve the temperature regulation capability of the thermal management system 100.

[0082] like Fig.11 As shown, the refrigerant side component also includes: a second electronic expansion valve 17 and a refrigerator cooler 18, the inlet of the second electronic expansion valve 17 is connected to the outlet of the first electronic expansion valve 15, the outlet of the second electronic expansion valve 17 is connected to the refrigerator cooler 18, and the refrigerator cooler 18 is connected to the heat exchanger 14;

[0083] The cooling medium side components also include: a refrigerator 602, a third proportional three-way valve 601 and a fifth pump 603. The seventh port of the third proportional three-way valve 601 is connected to the refrigerator 602 and the fifth pump 603 in sequence, the eighth port is connected to the refrigerator cooler 18, and the ninth port is connected to the condenser 11. The refrigerator cooler 18, the third proportional three-way valve 601, the refrigerator 602 and the fifth pump 603 constitute a refrigerator refrigeration circuit, and the condenser 11, the third proportional three-way valve 601, the refrigerator 602 and the fifth pump 603 constitute a refrigerator heating circuit.

[0084] Specifically, the setting of the second electronic expansion valve 17 and the refrigerator cooler 18 can make the refrigerant flowing through the first electronic expansion valve 15 further flow through the second electronic expansion valve 17 and the refrigerator cooler 18, and can realize heat exchange with the cooling medium in the refrigerator cooler 18. At the same time, it can realize secondary throttling of the refrigerant and reduce the evaporation temperature to meet the refrigeration demand of the refrigerator 602.

[0085] Furthermore, by setting up a refrigerator refrigeration circuit, a cooling medium is used to enter the refrigerator 602 for refrigeration, thereby avoiding the use of flammable refrigerants to enter the passenger compartment; adding a branch circuit at the water outlet of the condenser 11 (i.e., setting up a refrigerator heating circuit) can also meet the heating needs of the refrigerator 602, and different temperature adjustment requests of the refrigerator 602 in summer and winter can be quickly realized. Compared with the existing independent refrigerator refrigeration cycle system, the present application is highly integrated with the thermal management system 100, which can reduce the number of parts and has a greater cost advantage; and using a cooling medium to meet the temperature adjustment requirements of the refrigerator 602, avoiding the refrigerant from entering the passenger compartment, can also improve driving safety and comfort. It should be pointed out that a first temperature and pressure sensor 191 is arranged between the outlet of the compressor 13 and the condenser 11, a second temperature and pressure sensor 191 is arranged between the inlet of the compressor 13 and the low-pressure refrigerant outlet of the heat exchanger 14, and a third temperature and pressure sensor 193 is arranged between the refrigerant outlet of the refrigerator cooler 18 and the low-pressure refrigerant inlet of the heat exchanger 14, so as to respectively measure the temperature and pressure of the refrigerant flowing out of the compressor 13, the temperature and pressure of the refrigerant entering the compressor 13, and the temperature and pressure of the refrigerant flowing from the refrigerator cooler 18 to the heat exchanger 14, so as to facilitate the regulation of the entire refrigerant side components.

[0086] In a second aspect, an embodiment of the present application provides a vehicle, including: the thermal management system 100 in the above embodiment.

[0087] The thermal management system 100 and other components and operations of the vehicle according to the embodiment of the present application are well known to those skilled in the art and will not be described in detail here.

[0088] Below, refer to Figure 2-Figure 8 , the six working modes of the embodiments of the present application are specifically described.

[0089] First, the interface connection relationship of the nine-way valve 30 in the six working modes is as follows:

[0090] Mode 1: the first interface 310 is connected to the third interface 303, the second interface 302 is connected to the fourth interface 304, the fifth interface 305 is connected to the eighth interface 308, the sixth interface 306 is connected to the seventh interface 307, the tenth interface 310 is connected to the eleventh interface 311, and the ninth interface 309 is closed;

[0091] Mode 2: the first interface 310 is connected to the third interface 303, the second interface 302 is connected to the fourth interface 304, the fifth interface 305 is connected to the eighth interface 308, the sixth interface 306 is connected to the seventh interface 307, the tenth interface 310 is connected to the ninth interface 309, and the eleventh interface 311 is closed;

[0092] Mode 3: the first interface 310 is connected to the third interface 303, the second interface 302 is connected to the fourth interface 304, the fifth interface 305 is connected to the sixth interface 306, the seventh interface 307 is connected to the tenth interface 310, the eighth interface 308 is connected to the ninth interface 309, and the eleventh interface 311 is closed;

[0093] Mode 4: the first interface 310 is connected to the seventh interface 307, the second interface 302 is connected to the eighth interface 308, the third interface 303 is connected to the sixth interface 306, the fourth interface 304 is connected to the fifth interface 305, the ninth interface 309 is connected to the tenth interface 310, and the eleventh interface 311 is closed;

[0094] Mode 5: the first interface 310 is connected to the ninth interface 309, the second interface 302 is connected to the tenth interface 310, the third interface 303 is connected to the sixth interface 306, the fourth interface 304 is connected to the fifth interface 305, the seventh interface 307 is connected to the eighth interface 308, and the eleventh interface 311 is closed;

[0095] Mode six: the first interface 310 is connected to the third interface 303 , the fourth interface 304 is connected to the fifth interface 305 , the second interface 302 is connected to the eighth interface 308 , the sixth interface 306 is connected to the seventh interface 307 , the tenth interface 310 is connected to the eleventh interface 311 , and the ninth interface 309 is closed.

[0096] Combination Figure 2 and Figure 8 As shown, the first mode:

[0097] To realize the heat dissipation function of the powertrain while cooling the passenger compartment, close the third port of the first proportional three-way valve 40, open the first port and the second port, and open the fourth port, the fifth port and the sixth port of the second proportional three-way valve 50. The compressor 13 is started, and the second pump 262 is turned on to provide cooling medium circulation power, and the heat is sent to the low-temperature radiator 24. At the same time, the heat generated by the powertrain is sent to the low-temperature radiator 24 through the eleventh flow path 111, and the heat is dissipated to the external environment through the operation of the electronic fan. Finally, the fourth port and the fifth port, or the fifth port and the sixth port are adjusted by the second proportional three-way valve 50 so that the cooling medium circulates to the condenser 11 and the powertrain respectively to continue to absorb heat.

[0098] Among them, the first pump 261 is turned on to provide cooling medium circulation power, the cooling medium cooled by the battery cooler 12 is sent to the cooling core 22, and the cold air is sent into the passenger compartment with the assistance of the blower to absorb the air heat, and finally the cooling medium circulates to the battery cooler 12 for cooling again, thereby achieving a cooling effect for the passenger compartment.

[0099] Combination Figure 3 and Figure 8 As shown, the second mode:

[0100] The power battery is fast charged and cooled, and the powertrain maintains the realization of the self-circulating cooling function. Close the second port of the first proportional three-way valve 40, open the first and third ports, close the sixth port of the second proportional three-way valve 50, and open the fourth and fifth ports. The compressor 13 starts to complete the refrigerant circuit. Turn on the second pump 262 to provide cooling medium circulation power, send heat to the low-temperature radiator 24, and can dissipate heat to the external environment through the fan that cooperates with the low-temperature radiator 24. Finally, the cooling medium circulates to the condenser 11 to continue to absorb heat; turn on the first pump 261 to provide cooling medium circulation power, send the cooling medium cooled by the battery cooler 12 to the cold plate circuit, and finally the cooling medium circulates to the battery cooler 12 for cooling again, so as to achieve the cooling effect of the power battery. The third pump 263 is turned on, and the ninth interface 309, the ninth flow path 109, the tenth interface 310, and the tenth flow path 110 are connected to form a powertrain circuit to meet the powertrain temperature requirement. Once heat dissipation is required, the eleventh flow path 111 and the sixth port of the second proportional three-way valve 50 can be opened to enter the low-temperature radiator 24, and the heat can be dissipated to the external environment when the electronic fan is working.

[0101] The passenger compartment and the power battery are both cooled, and the powertrain circuit self-circulation function is realized. When the eleven-way valve 30 is in mode 2, the first, second and third ports of the first proportional three-way valve 40 are opened, the sixth port of the second proportional three-way valve 50 is closed, and the fourth and fifth ports are opened. The compressor 13 is started to complete the refrigerant circuit. The second pump 262 is turned on to provide power for the circulation of the cooling medium, and the heat is sent to the low-temperature radiator 24. The heat is dissipated to the external environment through the operation of the electronic fan, and finally the cooling medium is circulated to the condenser 11 to continue to absorb heat; the first pump 261 is turned on to provide power for the circulation of the cooling medium, and the cooling medium cooled by the battery cooler 12 is sent to the passenger compartment cooling core circuit and the cold plate circuit through the first proportional three-way valve 40 respectively. The cooling medium flow rate is proportionally adjusted by the first proportional three-way valve 40 to meet the different cooling requirements of the passenger compartment and the power battery. At the same time, the fourth pump 264 is turned on to ensure that the self-circulation flow path 112 is opened to avoid the high temperature of the cooling medium refluxed by the cold plate 23, which affects the temperature of the cooling medium refluxed by the battery cooler 12, thereby increasing the cooling capacity of the cold plate 23 and reducing the power consumption of the compressor 13.

[0102] Finally, the cooling medium circulates to the battery cooler 12 for further cooling, achieving dual cooling effects for the passenger compartment and the power battery. The third pump 263 is turned on, and the powertrain circuit self-circulates to meet the powertrain temperature requirements. Once cooling is required, the eleventh interface 311 and the sixth port of the second proportional three-way valve 50 are opened to enter the low-temperature radiator 24, and the electronic fan works to dissipate heat to the external environment.

[0103] Combination Figure 4 and Figure 8 As shown, the third mode:

[0104] Implementation of dehumidification function and power battery cooling function. When the eleven-way valve 30 is in mode three, close the third port of the first proportional three-way valve 40, open the second port and the first port, close the sixth port of the second proportional three-way valve 50, and open the fourth port and the fifth port. The compressor 13 starts to complete the refrigerant circuit. Turn on the second pump 262 to provide cooling medium circulation power and send heat to the passenger compartment heating core. Turn on the first pump 261 to provide cooling medium circulation power, and send the cooling medium cooled by the battery cooler 12 to the cooling core 22 through the first proportional three-way valve 40, and dehumidify the passenger compartment with the assistance of the blower.

[0105] Finally, the cooling medium circulates to the battery cooler 12 for cooling again. Turn on the fourth pump 264, the cold plate 23 forms a self-circulation to maintain uniform temperature. If the cold plate 23 needs to be cooled, just open the third port of the first proportional three-way valve 40, and adjust the cooling medium flow rate by the first proportional three-way valve 40 to meet the different cooling requirements of the passenger compartment and the power battery. Turn on the third pump 263 to achieve uniform temperature of the powertrain. Once cooling is required, open the eleventh interface 311 and the sixth port of the second proportional three-way valve 50 to enter the low-temperature radiator 24, and dissipate heat to the external environment when the electronic fan is working.

[0106] Realization of defrosting function. When the eleven-way valve 30 is in mode three, the first, second and third ports of the first proportional three-way valve 40 are opened, the sixth port of the second proportional three-way valve 50 is closed, and the fourth and fifth ports are opened. The compressor 13 does not work. The third pump 263 is turned on to provide cooling medium circulation power, and the waste heat of the powertrain is sent to the low-temperature radiator 24 for defrosting. If there is a heating demand in the passenger compartment, it can be heated by the heater 27 to meet the comfort of the passengers.

[0107] Combination Figure 5 and Figure 8 As shown, the fourth mode:

[0108] The passenger compartment heating and power battery heating functions are realized. When the eleven-way valve 30 is in mode four, the second port of the first proportional three-way valve 40 is closed, the first port and the third port are opened, the sixth port of the second proportional three-way valve 50 is closed, and the fifth port and the fourth port are opened. The compressor 13 is started. The first pump 261 is turned on to provide cooling medium circulation power, and the cooling medium cooled by the battery cooler 12 enters the low-temperature radiator 24 through the eleven-way valve 30. Under the action of the electronic fan, it absorbs the heat in the low-temperature air and returns to the battery cooler 12 for cooling again. The second pump 262 is turned on to provide cooling medium circulation power, and the heat is sent to the passenger compartment heating core 21. With the assistance of the blower, the hot air is sent into the passenger compartment to heat the indoor air, and then enters the cold plate 23 for heating. The third pump 263 is turned on, and the powertrain circuit is self-circulated to maintain the uniform temperature of the powertrain. In this mode, when the cold plate 23 does not need to be heated, the first proportional three-way valve 40 closes the third port, opens the second port, and turns on the fourth pump 264 to keep the power battery at a uniform temperature and realize the dual-core heating function.

[0109] Combination Figure 6 and Figure 8 As shown, the fifth mode:

[0110] It can meet the function of recovering waste heat from the powertrain to heat the passenger compartment and the power battery, as well as the passive heat dissipation of the powertrain when the vehicle is idling. If the power battery is in a slow charging state, it can also meet the passive heat dissipation of the power battery, or meet the passive heat dissipation of the power battery and the powertrain at the same time.

[0111] The powertrain waste heat recovery, passenger compartment heating and power battery heating functions are realized. When the eleven-way valve 30 is in mode five, the first, second and third ports of the first proportional three-way valve 40 are opened, the sixth port of the second proportional three-way valve 50 is closed, and the fourth and fifth ports are opened. The compressor 13 is started. The first pump 261 is turned on to provide cooling medium circulation power, and the cooling medium cooled by the battery cooler 12 enters the powertrain circuit through the eleven-way valve 30, absorbs waste heat, and returns to the battery cooler 12 for cooling again. The second pump 262 is turned on to provide cooling medium circulation power, and the heat is sent to the passenger compartment heating core 21. With the assistance of the blower, the hot air is sent into the passenger compartment to heat the indoor air, and then enters the cold plate 23 for heating. In this mode, when the cold plate 23 does not need to be heated, the first proportional three-way valve 40 closes the third port, opens the second port, and turns on the fourth pump 264 to keep the power battery at a uniform temperature, while realizing the dual-core heating function.

[0112] Implementation of the passive cooling function of the powertrain. When the eleven-way valve 30 is in mode six, close the second port of the first proportional three-way valve 40, open the first port and the third port, close the fifth port of the second proportional three-way valve 50, and open the fourth port and the sixth port. The compressor 13 is not started. Turn on the third pump 263 to provide cooling medium circulation power. The heat of the powertrain passes through the battery cooler 12 and then enters the low-temperature radiator 24 through the eleventh flow path 111. When the electronic fan is working, the heat is dissipated to the environment, completing the passive heat dissipation of the powertrain. Turn on the third pump 263 to provide cooling medium circulation power. The heat of the powertrain enters the low-temperature radiator 24 through the eleventh flow path 111. When the electronic fan is working, the heat is dissipated to the environment, completing the passive heat dissipation of the powertrain.

[0113] Combination Figure 7 and Figure 8 As shown, the sixth mode:

[0114] Implementation of passive cooling function for power battery and powertrain. When the eleven-way valve 30 is in mode six, close the second port of the first proportional three-way valve 40, open the first port and the third port, close the fifth port of the second proportional three-way valve 50, and open the third port and the sixth port. The compressor 13 does not start. Turn on the third pump 263 to provide cooling medium circulation power, which enters the low-temperature radiator 24 through the eleventh flow path 111 of the multi-way valve. Turn on the second pump 262 to provide cooling medium circulation power, and the heat of the power battery enters the low-temperature radiator 24 after passing through the cooling medium cold condenser 11. When the electronic fan is working, the heat is dissipated to the environment to complete the passive heat dissipation of the power battery and the powertrain. If the battery is slowly charged, only the power battery needs to be passively cooled, and the third cooling medium pump can be turned off.

[0115] In other words, the second pump 262 is turned on to provide cooling medium circulation power, and the heat of the power battery passes through the condenser 11 and is mixed with the cooling medium of the power assembly circuit and enters the low-temperature radiator 24. Under the action of the electronic fan, the heat is dissipated to the environment, completing the passive heat dissipation of the power battery and the power assembly. Under the regulation of the three-way valve, the cooling medium returns to the power assembly and the power battery respectively. If the battery is slowly charged, only the power assembly needs to be passively cooled, and the third cooling medium pump can be turned off)

[0116] Other structures and operations of the thermal management system 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0117] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0118] 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 (100), characterized in that: include: A refrigerant side component (10), wherein the refrigerant side component (10) comprises a condenser (11) and a battery cooler (12); A cooling medium side component (20), the cooling medium side component (20) comprising: a heating core (21), a cooling core (22), a cold plate (23), a low-temperature radiator (24) and a powertrain cooling element (25); An eleven-way valve (30), the eleven-way valve (30) having a first interface (310) to an eleventh interface (311) that can be selectively connected, and the first interface (310) to the eleventh interface (311) are correspondingly connected to a first flow path (101) to an eleventh flow path (111), the battery cooler (12) is connected between the first flow path (101) and the second flow path (102), the cold plate (23) and the cooling core (22) are arranged in parallel between the third flow path (103) and the fourth flow path (104), the heating core (21) and the condenser (11) are connected between the fifth flow path (105) and the sixth flow path (106), the low-temperature radiator (24) is connected between the seventh flow path (107) and the eighth flow path (108), and the powertrain cooling element (25) is connected between the ninth flow path (109) and the tenth flow path (110); wherein A first proportional three-way valve (40) is provided on the third flow path (103); a first port of the first proportional three-way valve (40) is connected to the third flow path (103); a second port and a third port of the first proportional three-way valve (40) are respectively connected to the cold plate (23) and the cooling core (22); and an outlet of the cold plate (23) and an outlet of the cooling core (22) are connected to the fourth flow path (104).

2. The thermal management system (100) according to claim 1, characterized in that: One end of the eleventh flow path (111) is connected to the eleventh interface (311), the other end of the eleventh flow path (111) is connected to the seventh flow path (107), the eleventh interface (311) is connected to the powertrain outlet to form a bypass flow path, and a second proportional three-way valve (50) is provided on the eighth flow path (108), the fourth port of the second proportional three-way valve (50) is connected to the low-temperature radiator (24), the fifth port is connected to the ninth flow path (109), and the sixth port is connected to the eighth interface (308).

3. The thermal management system (100) according to claim 1, characterized in that: A first pump (261) is provided in the first flow path (101) or the second flow path (102), a second pump (262) is provided in the fifth flow path (105) or the sixth flow path (106), and a third pump (263) is provided in the ninth flow path (109) or the tenth flow path (110).

4. The thermal management system (100) according to claim 3, characterized in that: A heater (27) is also provided in the fifth flow path (105) or the sixth flow path (106), and the heater (27) is provided at one end of the heating core (21) adjacent to the condenser (11), and the fifth flow path (105) can be selectively connected to the fourth flow path (104) so ​​that the cooling core (22) and the heating core (21) are connected in series.

5. The thermal management system (100) according to claim 1, characterized in that: The thermal management system (100) further comprises: a self-circulating flow path (112), one end of the self-circulating flow path (112) being connected to the inlet of the cold plate (23), and the other end of the self-circulating flow path (112) being connected to the inlet of the cold plate (23), so as to realize self-circulation of the cold plate (23).

6. The thermal management system (100) according to claim 5, characterized in that: A fourth pump (264) and a first one-way valve (281) are provided in the self-circulating flow path (112), and the first one-way valve (281) unidirectionally conducts the outlet of the cold plate (23) to the inlet of the cold plate (23).

7. The thermal management system (100) according to claim 1, characterized in that: The cooling medium side component (20) further includes: an overflow pot (29), wherein a first branch (113) of the overflow pot (29) is connected to the fourth flow path (104), a second branch (114) is connected to a liquid replenishment exhaust port on the low-temperature radiator (24), and a third branch (115) is connected to the ninth flow path (109), and a second one-way valve (282) is provided in the second branch (114), and the second one-way valve (282) unidirectionally conducts the low-temperature radiator (24) to the overflow pot (29).

8. The thermal management system (100) according to claim 1, characterized in that: The refrigerant side component (10) also includes: a compressor (13), a heat exchanger (14), a liquid storage tank (16) and a first electronic expansion valve (15). The outlet of the compressor (13), the condenser (11), the liquid storage tank (16), the high-pressure refrigerant inlet and high-pressure refrigerant outlet of the heat exchanger (14), the first electronic expansion valve (15), the battery cooler (12), the low-pressure refrigerant inlet and low-pressure refrigerant outlet of the heat exchanger (14), and the inlet of the compressor (13) are connected in sequence. The heat exchanger (14) has a high-pressure refrigerant pipeline and a low-pressure refrigerant pipeline. One of the high-pressure refrigerant pipeline and the low-pressure refrigerant pipeline is constructed as a coaxial tube or a capillary tube. The refrigerant medium flowing in the refrigerant side component includes but is not limited to: R290, R134a, and R1234yf.

9. The thermal management system (100) according to claim 8, characterized in that: The refrigerant side component further comprises: a second electronic expansion valve (17) and a refrigerator cooler (18), wherein the inlet of the second electronic expansion valve (17) is connected to the outlet of the first electronic expansion valve (15), the outlet of the second electronic expansion valve (17) is connected to the refrigerator cooler (18), and the refrigerator cooler (18) is connected to the heat exchanger (14); The cooling medium side component also includes: a refrigerator (602), a third proportional three-way valve (601) and a fifth pump (603); the seventh port of the third proportional three-way valve (601) is connected to the refrigerator (602) and the fifth pump (603) in sequence; the eighth port is connected to the refrigerator cooler (18); and the ninth port is connected to the condenser (11); the refrigerator cooler (18), the third proportional three-way valve (601), the refrigerator (602) and the fifth pump (603) constitute a refrigerator refrigeration circuit; and the condenser (11), the third proportional three-way valve (601), the refrigerator (602) and the fifth pump (603) constitute a refrigerator heating circuit.

10. The thermal management system (100) according to any one of claims 1 to 9, characterized in that: The valve body of the eleven-way valve (30) is integrated with a first valve system (30a) and a second valve system (30b), wherein the first valve system (30a) has eight interfaces and the second valve system (30b) has seven interfaces, and two interfaces in the first valve system (30a) are connected with two interfaces in the second valve system (30b), so that the first valve system (30a) defines a first interface (310) to a sixth interface (306), and the second valve system (30b) defines a seventh interface (307) to an eleventh interface (311), or a seven-way valve (30c) is combined with an eight-way valve (30d), and the eight-way valve (30d) defines the first interface (310) to the sixth interface (306), and the seven-way valve (30c) defines the seventh interface (307) to the eleventh interface (311).

11. A vehicle, characterized in that: include: The thermal management system (100) according to any one of claims 1 to 10.

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