Thermal management system of vehicle and vehicle

Abstract

The application discloses a heat management system of a vehicle and the vehicle. The heat management system of the vehicle comprises a first heat exchange circuit, in which a first interface of a first three-way valve and a first condensing interface of a water-cooled condenser are communicated, a second interface of the first three-way valve and a heat exchanger inlet of a first heat exchanger are communicated, a second condensing interface of the water-cooled condenser is communicated with a third interface of the first three-way valve and a heat exchanger outlet of the first heat exchanger, one end of a heat exchange circuit is communicated with the first interface, the other end of the heat exchange circuit is communicated with the heat exchanger outlet of the first heat exchanger and the third interface, and the heat exchange circuit has components of the vehicle; in an air conditioning circuit, a third condensing interface of the water-cooled condenser and a fourth condensing interface of the water-cooled condenser are respectively communicated with a compressor and a first expansion valve. Thus, the heat management system can adjust the temperature of a heat exchange medium in the first heat exchange circuit, improve the refrigeration effect of the air conditioning circuit, and the heat management system has a simple structure.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more specifically, to a thermal management system for a vehicle and a vehicle having the thermal management system thereon. Background Technology

[0002] In related technologies, existing thermal management systems have complex structures and cannot adjust the heat exchange mode based on the temperature of the heat exchange medium within the system. This prevents them from effectively regulating the temperature of the heat exchange medium and thus makes them unsuitable for vehicles with multiple operating modes. Furthermore, the air conditioning circuits in existing thermal management systems have poor cooling performance, resulting in inadequate cooling of the passenger compartment and a reduced user experience. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, the present invention proposes a vehicle thermal management system that can regulate the temperature of the heat exchange medium in the first heat exchange circuit while improving the cooling effect of the air conditioning circuit, and the thermal management system has a simple structure.

[0004] The present invention also proposes a vehicle having the above-described thermal management system.

[0005] A vehicle thermal management system according to an embodiment of the present invention includes:

[0006] The first heat exchange circuit includes a first heat exchanger, a first three-way valve, a water-cooled condenser, a first drive pump, and a heat exchange flow path. The first three-way valve has a first port, a second port, and a third port. The water-cooled condenser has a connected first condensing port, a connected second condensing port, a connected third condensing port, and a connected fourth condensing port. The first port is connected to the first condensing port, the second port is connected to the heat exchanger inlet of the first heat exchanger, and the second condensing port is connected to the third port and the heat exchanger outlet of the first heat exchanger. The first drive pump is used to drive the flow of heat exchange medium in the first heat exchange circuit. One end of the heat exchange flow path is connected to the first port, and the other end of the heat exchange flow path is connected to the heat exchanger outlet and the third port of the first heat exchanger. The heat exchange flow path includes vehicle components.

[0007] The air conditioning circuit is used to cool the passenger compartment of the vehicle. The air conditioning circuit has a compressor, a first expansion valve and a second heat exchanger. The compressor, the first expansion valve and the second heat exchanger are connected in series. The third condenser interface and the fourth condenser interface are connected to the compressor and the first expansion valve, respectively.

[0008] According to an embodiment of the present invention, the vehicle thermal management system has the effect of regulating the temperature of the heat exchange medium in the first heat exchange circuit. When applied to a vehicle, the thermal management system can meet the different operating modes of the vehicle, ensuring that the temperature of the components in the heat exchange flow path reaches a suitable operating temperature under different operating conditions. This facilitates the components operating within their high-efficiency range, thereby achieving energy saving and consumption reduction in the vehicle. Furthermore, the first heat exchange circuit exchanges heat with the air conditioning circuit, which helps improve the cooling effect of the air conditioning circuit.

[0009] In some examples of the present invention, there are multiple heat exchange paths, and the multiple heat exchange paths are connected in parallel.

[0010] In some examples of the present invention, the thermal management system of the vehicle further includes: a first air supply element adapted to blow air toward a first heat exchanger.

[0011] In some examples of the present invention, the vehicle's thermal management system further includes: a third heat exchanger, an air conditioning circuit having a first pipe and a second pipe, the first pipe connecting a fourth condenser interface and a first expansion valve, the second pipe connecting a second heat exchanger and a compressor, and the third heat exchanger for exchanging heat between the first pipe and the second pipe.

[0012] In some examples of the present invention, the first pipeline is provided with a first solenoid valve.

[0013] In some examples of the invention, the air conditioning circuit also includes a pressure sensor located between the compressor and the third condenser interface.

[0014] In some examples of the present invention, the vehicle thermal management system further includes: a battery heat exchange circuit and a fourth heat exchanger, wherein the heat exchanger inlet of the fourth heat exchanger is connected to a fourth condensation interface, the heat exchanger outlet of the fourth heat exchanger is connected to a compressor, and the fourth heat exchanger is adapted to exchange heat with the battery heat exchange circuit.

[0015] In some examples of the present invention, the air conditioning circuit also includes a second solenoid valve and a second expansion valve, and the second solenoid valve and the second expansion valve are connected between the fourth heat exchanger and the fourth condenser interface, and the second solenoid valve and the second expansion valve are connected in series.

[0016] In some examples of the present invention, the vehicle's thermal management system further includes a second heat exchange circuit for exchanging heat with the vehicle's engine and is also adapted to exchange heat with a battery heat exchange circuit.

[0017] In some examples of the present invention, the second heat exchange circuit has a fifth heat exchanger, a sixth heat exchanger, a third pipeline, and a thermal management control module. The engine has a cylinder block and a cylinder head. The heat exchanger outlet of the fifth heat exchanger is connected to the third pipeline, and the third pipeline is connected to both the cylinder block and the cylinder head. The heat exchanger inlet of the fifth heat exchanger is selectively connected to the cylinder block. The thermal management control module has a fourth interface, a fifth interface, and a sixth interface. The fourth interface is selectively connected to the sixth heat exchanger and also selectively connected to the third pipeline. The fifth interface is connected to the cylinder head. The sixth interface is connected to the third pipeline. The sixth heat exchanger is also connected to the third pipeline. The sixth heat exchanger is adapted to exchange heat with the battery heat exchange circuit.

[0018] In some examples of the present invention, the second heat exchange circuit also has a third three-way valve, which has a seventh port, an eighth port and a ninth port. The seventh port is connected to the fourth port, the eighth port is connected to the heat exchanger inlet of the sixth heat exchanger, and the ninth port is connected to the third pipeline.

[0019] In some examples of the present invention, the second heat exchange loop also has a seventh heat exchanger connected between the seventh interface and the fourth interface, and the seventh heat exchanger is used to heat the crew compartment.

[0020] In some examples of the present invention, a fourth pipeline is connected between the seventh interface and the fourth interface, a seventh heat exchanger is disposed on the fourth pipeline, and the second heat exchange circuit also has a heating element for heating the fourth pipeline.

[0021] In some examples of the present invention, the fourth pipeline is provided with a second drive pump.

[0022] In some examples of the present invention, the engine also has a turbocharger and an oil cooler, a third pipeline connected to both the turbocharger inlet and the turbocharger outlet, and the oil cooler inlet and outlet connected to the third pipeline and the cylinder block, respectively.

[0023] In some examples of the present invention, the vehicle's thermal management system further includes a second air supply member adapted to blow air toward a fifth heat exchanger.

[0024] In some examples of the present invention, the third pipeline is provided with a third drive pump.

[0025] In some examples of the present invention, the vehicle's thermal management system further includes: a first expansion tank, the first expansion tank being connected to a second heat exchange circuit.

[0026] In some examples of the present invention, the vehicle thermal management system further includes: a second expansion tank, in which a first storage space and a second storage space are formed, the first storage space being connected to a first heat exchange circuit, and the second storage space being connected to a battery heat exchange circuit.

[0027] According to the vehicle proposed in this invention, the vehicle includes the aforementioned vehicle thermal management system.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the thermal management system according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the first heat exchange circuit according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the air conditioning circuit according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the battery heat exchange circuit according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the second heat exchange circuit in an embodiment of the present invention.

[0034] Figure label:

[0035] Thermal Management System 1000;

[0036] First heat exchange loop 100;

[0037] First heat exchanger 1;

[0038] First three-way valve 2; First port 2a; Second port 2b; Third port 2c;

[0039] Water-cooled condenser 3; First condenser port 3a; Second condenser port 3b; Third condenser port 3c; Fourth condenser port 3d;

[0040] 4. First drive pump; 5. Heat exchange flow path; 6. First air supply component;

[0041] Power management module 7a; motor controller 7b; motor oil cooler 7c; gearbox oil cooler 7d; water-cooled intercooler 8;

[0042] Air conditioning circuit 200;

[0043] Compressor 11; First expansion valve 12; Second heat exchanger 13; Third heat exchanger 14;

[0044] First pipe 10a; Second pipe 10b;

[0045] First solenoid valve 15; pressure sensor 16; fourth heat exchanger 17; second solenoid valve 18; second expansion valve 19;

[0046] Battery heat exchange circuit 300; power battery 31;

[0047] Second heat exchange loop 400;

[0048] Fifth heat exchanger 41; Sixth heat exchanger 42; Third pipeline 43;

[0049] Thermal management control module 44; fourth interface 44a; fifth interface 44b; sixth interface 44c; tenth interface 44d; eleventh interface 44e;

[0050] Cylinder block 45a; Cylinder head 45b; Turbocharger 45c; Oil cooler 45d;

[0051] Third three-way valve 46; Seventh port 46a; Eighth port 46b; Ninth port 46c;

[0052] 47. Seventh heat exchanger; 48. Fourth pipeline; 49. Second drive pump; 50. Second air supply unit; 51. Third drive pump;

[0053] First expansion vessel 61; First connecting port 61a; Second connecting port 61b;

[0054] Second expansion pot 62;

[0055] First storage space 621; third connection port 621a; fourth connection port 621b;

[0056] Second storage space 622; Fifth connection port 622a; Sixth connection port 622b;

[0057] Air supply device 70;

[0058] Heater 81; Exhaust gas recirculation heat exchanger 82. Detailed Implementation

[0059] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0060] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] The following is combined with Figures 1-5 The present invention describes in detail a vehicle thermal management system 1000 according to an embodiment of the present invention. The thermal management system 1000 can be applied to a vehicle, but this application is not limited thereto. The thermal management system 1000 can be applied to other equipment that requires the thermal management system 1000. This application uses the application of the thermal management system 1000 to a vehicle as an example for description. The vehicle in the embodiment of the present invention can be a hybrid off-road vehicle. It can be understood that the vehicle in the embodiment of the present invention achieves the effect of driving the vehicle through an engine and an electric motor.

[0064] like Figures 1-3 As shown, the thermal management system 1000 according to an embodiment of the present invention includes a first heat exchange circuit 100 and an air conditioning circuit 200. For example... Figure 2 and Figure 3As shown, the first heat exchange circuit 100 includes a first heat exchanger 1, a first three-way valve 2, a water-cooled condenser 3, a first drive pump 4, and a heat exchange flow path 5. The first three-way valve 2 has a first port 2a, a second port 2b, and a third port 2c. The water-cooled condenser 3 has a connected first condensing port 3a and a second condensing port 3b, a connected third condensing port 3c, and a fourth condensing port 3d. The first port 2a and the first condensing port 3a are connected. The second port 2b is connected to the heat exchanger inlet of the first heat exchanger 1. The second condensing port 3b is connected to the third port 2c and the heat exchanger outlet of the first heat exchanger 1. The first drive pump 4 is used to drive the flow of the heat exchange medium in the first heat exchange circuit 100. The first drive pump 4 can be constructed as a dynamic pump or a positive displacement pump, etc., to achieve the effect of driving the flow of the heat exchange medium in the first heat exchange circuit 100. One end of the heat exchange flow path 5 is connected to the first interface 2a, and the other end of the heat exchange flow path 5 is connected to the heat exchanger outlet of the first heat exchanger 1 and the third interface 2c. The heat exchange flow path 5 has vehicle parts, thereby realizing the effect of the first heat exchange circuit 100 for heat exchange of vehicle parts, so that the temperature of the vehicle parts is at a suitable working temperature.

[0065] like Figure 3 As shown, the air conditioning circuit 200 is used to cool the passenger compartment of the vehicle. The air conditioning circuit 200 has a compressor 11, a first expansion valve 12 and a second heat exchanger 13. The compressor 11, the first expansion valve 12 and the second heat exchanger 13 are connected in series. The third condensing interface 3c and the fourth condensing interface 3d are respectively connected to the compressor 11 and the first expansion valve 12.

[0066] The first heat exchanger 1 can be configured as a radiator for heat exchange with the air. When the temperature of the heat exchange medium inside the radiator is higher than the air temperature, the air absorbs the heat from the heat exchange medium inside the radiator, thus lowering the temperature of the heat exchange medium inside the radiator. When the temperature of the heat exchange medium inside the radiator is lower than the air temperature, the heat exchange medium absorbs the heat from the air, thus lowering the air temperature. It should be noted that during the operation of the thermal management system 1000, the temperature of the heat exchange medium flowing through the first heat exchanger 1 is higher than the air temperature, so that as the heat exchange medium flows through the first heat exchanger 1, the air absorbs the heat from the heat exchange medium flowing through the first heat exchanger 1, thereby lowering the temperature of the heat exchange medium in the first heat exchange loop 100.

[0067] like Figure 2As shown, the first three-way valve 2 can be configured as an electromagnetic three-way valve. When the first port 2a is connected to the second port 2b and disconnected from the third port 2c, the heat exchange flow path 5 is connected to the first heat exchanger 1. When the first port 2a is connected to the third port 2c and disconnected from the second port 2b, the heat exchange flow path 5 is not connected to the first heat exchanger 1. Thus, by controlling the first three-way valve 2 to selectively connect the first port 2a to the second port 2b and the third port 2c, the first three-way valve 2 can control whether the heat exchange medium flowing through the heat exchange flow path 5 flows through the first heat exchanger 1, thereby facilitating the control of the temperature of the heat exchange medium flowing through the heat exchange flow path 5.

[0068] like Figure 2 As shown, for example, when a vehicle is first started, the temperature of the heat exchange medium flowing through the heat exchange path 5 is low (e.g., the temperature of the heat exchange medium is less than 45°C), and the temperature of the vehicle's components has not yet reached a suitable operating temperature. By controlling the first three-way valve 2, the first port 2a is disconnected from the second port 2b, and the first port 2a is connected to the third port 2c. The heat exchange medium flowing through the heat exchange path 5 does not exchange heat with the air, so that the heat exchange path 5 forms a closed loop connection. By circulating the heat exchange medium along the heat exchange path 5, the temperature of the heat exchange medium flowing through the heat exchange path 5 gradually increases, achieving the effect of gradually increasing the temperature of the components installed in the heat exchange path 5. When the thermal management system 1000 is applied to a vehicle, the vehicle can have a cold start warm-up effect, and the temperature of the vehicle's components can quickly reach a suitable operating temperature, so that the components are in the high-efficiency operating range, which plays a role in energy saving and consumption reduction, and at the same time helps to extend the service life of the components.

[0069] like Figure 2 As shown, the temperature of the heat exchange medium flowing through the heat exchange path 5 is relatively high (for example, the temperature of the heat exchange medium is greater than 50°). When the temperature of the vehicle's components exceeds the suitable operating temperature, the first three-way valve 2 is controlled to disconnect the first port 2a from the third port 2c and connect the first port 2a to the second port 2b. The heat exchange path 5 is then connected to the first heat exchanger 1, so that the heat exchange medium flowing through the heat exchange path 5 exchanges heat with the air through the first heat exchanger 1. This reduces the temperature of the heat exchange medium flowing through the heat exchange path 5, allowing the components installed in the heat exchange path 5 to reach a suitable operating temperature. This ensures that the components are always in a high-efficiency operating range during vehicle operation, achieving energy saving and consumption reduction, and also helps extend the service life of the components.

[0070] like Figures 1-3 As shown, the first heat exchange circuit 100 and the air conditioning circuit 200 exchange heat through the water-cooled condenser 3, thereby achieving heat exchange between the heat exchange medium in the first heat exchange circuit 100 and the heat exchange medium in the air conditioning circuit 200. It should be noted that, as... Figure 3As shown, in the air conditioning circuit 200, the heat exchange medium has a higher temperature after being processed by the compressor 11, so that during the heat exchange process between the first heat exchange circuit 100 and the air conditioning circuit 200, such as... Figure 2 and Figure 3 As shown, the temperature of the heat exchange medium flowing into the water-cooled condenser 3 from the third condensing port 3c is higher than the temperature of the heat exchange medium flowing into the water-cooled condenser 3 from the second condensing port 3b. That is, the temperature of the heat medium flowing into the water-cooled condenser 3 from the first heat exchange circuit 100 is higher than the temperature of the heat medium flowing into the water-cooled condenser 3 from the air conditioning circuit 200. This allows the heat exchange medium of the first heat exchange circuit 100 to absorb heat from the heat exchange medium of the air conditioning circuit 200 during the heat exchange process between the first heat exchange circuit 100 and the air conditioning circuit 200, thereby reducing the temperature of the heat exchange medium in the air conditioning circuit 200. This facilitates the delivery of the lower-temperature heat exchange medium to the second heat exchanger 13, allowing the second heat exchanger 13 to exchange heat with the air, thus enabling the air conditioning circuit 200 to cool the passenger compartment of the vehicle.

[0071] like Figure 2 As shown, in the first heat exchange circuit 100, the heat exchange medium absorbs heat from the air conditioning circuit 200 and flows from the first condensing port 3a to the first port 2a. It is selectively connected to the second port 2b and the third port 2c through the first port 2a, thereby enabling the second condensing port 3b to be selectively connected to the heat exchanger outlet of the first heat exchanger 1 and the third port 2c.

[0072] For example, when the first interface 2a is connected to the second interface 2b and the first interface 2a is disconnected from the third interface 2c, the heat exchange medium flows into the first heat exchanger 1 from the first condensing interface 3a and flows from the heat exchanger outlet of the first heat exchanger 1 to the second condensing interface 3b, so that the heat exchange medium circulates between the water-cooled condenser 3 and the first heat exchanger 1. The heat exchange medium exchanges heat with the air through the first heat exchanger 1, so as to reduce the temperature of the heat exchange medium in the first heat exchange circuit 100, avoid the temperature of the heat exchange medium in the first heat exchange circuit 100 being too high, and help the components set in the heat exchange flow path 5 to reach a suitable operating temperature, and also help the first heat exchange circuit 100 and the air conditioning circuit 200 to exchange heat, so that the air conditioning circuit 200 has a better cooling effect.

[0073] When the first interface 2a is connected to the third interface 2c and the first interface 2a is disconnected from the second interface 2b, the heat exchange medium flows into the first interface 2a from the first condensation interface 3a and into the second condensation interface 3b from the third interface 2c. This avoids the heat exchange medium exchanging heat with the air through the first heat exchanger 1, thus avoiding heat loss. This allows the temperature of the heat exchange medium in the first heat exchange circuit 100 to gradually increase, preventing the temperature of the heat exchange medium in the first heat exchanger and second heat exchanger 13 circuit from being too low. This, in turn, helps the components installed in the heat exchange flow path 5 to reach a suitable operating temperature.

[0074] like Figure 3 As shown, in the air conditioning circuit 200, the heat exchange medium flows to the first expansion valve 12 after being cooled by the water-cooled condenser 3. The first expansion valve 12 can be configured as an electromagnetic expansion valve. During the flow of the heat exchange medium through the first expansion valve 12, the first expansion valve 12 converts the heat exchange medium into a lower-temperature heat exchange medium. Therefore, by connecting the first expansion valve 12 between the water-cooled condenser 3 and the second heat exchanger 13, the temperature of the heat exchange medium flowing into the second heat exchanger 13 is further reduced. This allows the heat exchange medium in the second heat exchanger 13 to absorb heat from the air when exchanging heat with it, thus achieving the effect of cooling the air. It should be noted that the air exchanging heat with the second heat exchanger 13 can flow into the vehicle's passenger compartment. Because the air is at a lower temperature after exchanging heat with the second heat exchanger 13, the air conditioning circuit 200 achieves the effect of cooling the vehicle's passenger compartment.

[0075] Therefore, according to the embodiment of the present invention, the thermal management system 1000 has the effect of adjusting the temperature of the heat exchange medium in the first heat exchange circuit 100, so that when the thermal management system 1000 is applied to a vehicle, the thermal management system 1000 can meet the different working modes of the vehicle, so that the temperature of the components set in the heat exchange flow path 5 reaches a suitable working temperature under different working conditions, so that the thermal management system 1000 meets the needs of off-road vehicles, and at the same time, it is conducive to the components being in the high-efficiency working range, thereby achieving the effect of energy saving and consumption reduction in the vehicle.

[0076] Furthermore, the first heat exchange circuit 100 is configured to exchange heat with the air conditioning circuit 200, which helps to improve the cooling effect of the air conditioning circuit 200. Moreover, compared to existing thermal management systems, the thermal management system 1000 of this embodiment has a simple structure, giving it a compact advantage. When applied to a vehicle, this reduces the space required to house the thermal management system 1000, thereby increasing the passenger compartment space.

[0077] In some embodiments of the present invention, such as Figure 2 As shown, there are multiple heat exchange flow paths 5, which are connected in parallel. In this embodiment of the invention, the first heat exchange circuit 100 has two parallel heat exchange flow paths 5 as an example. Both heat exchange flow paths 5 can be equipped with components, which is conducive to the heat dissipation of the components, so that the components are in the high-efficiency working range, thereby achieving the effect of energy saving and consumption reduction in the vehicle.

[0078] In some embodiments of the present invention, such as Figure 2 As shown, the thermal management system 1000 may include a power management module 7a; a motor controller 7b; a motor oil cooler 7c; a gearbox oil cooler 7d; and a water-cooled intercooler 8. Figure 2As shown, this application describes an example where one of the two heat exchange flow paths 5 is equipped with a power management module 7a, a motor controller 7b, a motor oil cooler 7c, and a gearbox oil cooler 7d, and the other of the two heat exchange flow paths 5 is equipped with a water-cooled intercooler 8.

[0079] The heat exchange pipeline of the power management module 7a is adapted to be connected to the heat exchange flow path 5 so that the heat exchange medium in the heat exchange flow path 5 can flow through the heat exchange pipeline of the power management module 7a, thereby achieving the effect of heat exchange between the heat exchange medium and the power management module 7a, so that the power management module 7a is at a suitable operating temperature, which is beneficial to improving the working stability of the power management module 7a, reducing the risk of failure of the power management module 7a, and also beneficial to the application of the thermal management system 1000 in off-road vehicles.

[0080] The heat exchange pipes of the motor oil cooler 7c are adapted to be connected to the heat exchange flow path 5 so that the heat exchange medium in the heat exchange flow path 5 can flow through the heat exchange pipes of the motor oil cooler 7c, thereby achieving the effect of heat exchange between the heat exchange medium and the motor oil cooler 7c, so that the motor oil cooler 7c is at a suitable operating temperature, reducing the risk of motor overheating, which is conducive to the motor operating in a high-efficiency range, thereby achieving the effect of energy saving and consumption reduction in vehicles, and at the same time, it is beneficial for the thermal management system 1000 to be applied to off-road vehicles.

[0081] The heat exchange pipes of the transmission oil cooler 7d are adapted to be connected to the heat exchange flow path 5 so that the heat exchange medium in the heat exchange flow path 5 can flow through the heat exchange pipes of the transmission oil cooler 7d, thereby achieving the effect of heat exchange between the heat exchange medium and the transmission oil cooler 7d, so that the transmission oil cooler 7d is at a suitable operating temperature, which is beneficial to improving the smoothness of the transmission, and thus beneficial to achieving the effect of energy saving and consumption reduction in vehicles. At the same time, it is also beneficial to apply the thermal management system 1000 to off-road vehicles.

[0082] It should be noted that both the motor oil cooler 7c and the gearbox oil cooler 7d can be water-cooled oil coolers. In some embodiments of the present invention, the motor oil cooler 7c and the gearbox oil cooler 7d are two independent oil coolers, so that the motor oil cooler 7c is used for motor cooling and the gearbox oil cooler 7d is used for gearbox cooling, thereby improving the cooling effect of the motor and gearbox and reducing the risk of motor and gearbox failure.

[0083] The water-cooled intercooler 8 is used to exchange heat with the air flowing into the engine, thereby helping to reduce the temperature of the air flowing into the engine. The water-cooled intercooler 8 is connected to the heat exchange flow path 5 so that the heat exchange medium in the heat exchange flow path 5 is suitable for flowing through the water-cooled intercooler 8. When the air exchanges heat with the water-cooled intercooler 8, the air exchanges heat with the heat exchange medium flowing through the water-cooled intercooler 8, thereby achieving the effect of reducing the temperature of the air flowing into the engine. This allows air at a suitable temperature to flow into the engine, which helps to improve the engine's operating performance and thus helps to achieve energy saving and consumption reduction. At the same time, it is also beneficial for the thermal management system 1000 to be applied to off-road vehicles.

[0084] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the thermal management system 1000 may further include: a first air supply component 6, which is adapted to blow air toward the first heat exchanger 1 so as to facilitate heat exchange between the heat exchange medium flowing through the first heat exchanger 1 and the air in the first heat exchange circuit 100, thereby achieving the effect of rapidly reducing the temperature of the heat exchange medium in the first heat exchange circuit 100, which in turn helps the temperature of the components installed in the heat exchange flow path 5 to quickly reach a suitable operating temperature, and also helps to improve the cooling effect of the air conditioning circuit 200 on the passenger compartment.

[0085] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first air supply component 6 can be constructed as an electronic fan or a common cooling fan. In this embodiment of the invention, the first air supply component 6 is constructed as an electronic fan, thereby achieving the effect of the first air supply component 6 blowing air toward the first heat exchanger 1, which is beneficial for the air to exchange heat with the first heat exchanger 1, so that the temperature of the heat exchange medium flowing through the first heat exchanger 1 can be reduced rapidly, which is beneficial for the thermal management system 1000 to be applied to off-road vehicles.

[0086] In some embodiments of the present invention, such as Figure 3 As shown, the thermal management system 1000 may further include: a third heat exchanger 14, and the air conditioning circuit 200 may further have a first pipe 10a and a second pipe 10b, the first pipe 10a being connected to a fourth condensing interface 3d and a first expansion valve 12, the second pipe 10b being connected to a second heat exchanger 13 and a compressor 11, and the third heat exchanger 14 being used to exchange heat between the first pipe 10a and the second pipe 10b.

[0087] It should be noted that, as Figure 3As shown, in the air conditioning circuit 200, the heat exchange medium flows from the fourth condenser interface 3d along the first pipe 10a, sequentially through the third heat exchanger 14 and the first expansion valve 12. When the heat exchange medium flows through the first expansion valve 12, the first expansion valve 12 lowers the temperature of the heat exchange medium, so that the heat exchange medium can absorb heat from the air during its flow through the second heat exchanger 13, thereby achieving the effect of cooling the passenger compartment. However, the heat of the air has little effect on the temperature of the heat exchange medium; even after the heat exchange medium has undergone heat exchange in the second heat exchanger 13, its temperature remains relatively low. After heat exchange in the second heat exchanger 13, the heat exchange medium flows along the second pipe 10b, sequentially through the third heat exchanger 14 and the compressor 11, and then through the compressor 11 to the water-cooled condenser 3, thus achieving the effect of the heat exchange medium flowing along the air conditioning circuit 200.

[0088] Because the temperature of the heat exchange medium in the second pipe 10b is lower than that in the first pipe 10a, when the heat exchange medium in the first pipe 10a and the heat exchange medium in the second pipe 10b flow through the third heat exchanger 14 respectively, the heat exchange medium in the second pipe 10b absorbs the heat of the heat exchange medium in the first pipe 10a, which helps to reduce the temperature of the heat exchange medium in the first pipe 10a. This allows the lower-temperature heat exchange medium to flow into the first expansion valve 12, achieving the effect of delivering the lower-temperature heat exchange medium to the second heat exchanger 13. This allows the heat exchange medium flowing through the second heat exchanger 13 to better absorb the heat of the air, thereby improving the cooling effect of the air conditioning circuit 200 on the passenger compartment.

[0089] In some embodiments of the present invention, such as Figure 3 As shown, the first pipeline 10a may be equipped with a first solenoid valve 15. The first solenoid valve 15 is connected between the third heat exchanger 14 and the second heat exchanger 13. In the first pipeline 10a, the first solenoid valve 15 is used to control the connection and disconnection of the third heat exchanger 14 and the second heat exchanger 13, thereby achieving the effect of selective connection between the third heat exchanger 14 and the second heat exchanger 13, and thus achieving the effect of selectively using the air conditioning circuit 200 to cool the passenger compartment.

[0090] For example, when the crew cabin needs to be cooled, the first solenoid valve 15 is controlled to connect the third heat exchanger 14 and the second heat exchanger 13. The heat exchange medium flows into the second heat exchanger 13 to exchange heat with the air, thereby achieving the effect of exchanging heat with the air through the second heat exchanger 13, and thus achieving the effect of cooling the crew cabin.

[0091] When the occupant cabin does not require cooling, the first solenoid valve 15 is controlled to disconnect the third heat exchanger 14 and the second heat exchanger 13, preventing the heat exchange medium from flowing into the second heat exchanger 13. This stops the second heat exchanger 13 from exchanging air heat, thereby stopping the cooling of the occupant cabin.

[0092] Therefore, by setting a first solenoid valve 15 in the first pipeline 10a and connecting it between the third heat exchanger 14 and the second heat exchanger 13, the air conditioning circuit 200 can be selectively used to cool the passenger compartment, so that the air conditioning circuit 200 can cool and stop cooling the passenger compartment according to the user's needs, thereby improving the user experience.

[0093] In some embodiments of the present invention, such as Figure 3 As shown, the air conditioning circuit 200 may also have a pressure sensor 16, which is located between the compressor 11 and the third condenser interface 3c. The pressure sensor 16 is used to monitor the pressure of the air conditioning circuit 200 so that the air conditioning circuit 200 can control the compressor 11 to operate according to the pressure, thereby maintaining the pressure of the air conditioning circuit 200.

[0094] In the air conditioning circuit 200, the heat exchange medium is converted into a high-pressure state by the compressor 11. The high-pressure heat exchange medium is then transported from the compressor 11 to the water-cooled condenser 3 to achieve heat exchange between the air conditioning circuit 200 and the first heat exchange circuit 100. When the pressure sensor 16 detects that the pressure in the air conditioning circuit 200 is outside the normal range, the pressure sensor 16 generates corresponding pressure information to stop the compressor 11 from working. This ensures that the compressor 11 operates in a stable state in the air conditioning circuit 200, which helps improve the working stability of the air conditioning circuit 200 and reduces the risk of failure.

[0095] For example, when the pressure in the air conditioning circuit 200 is higher than the normal range, to prevent the pressure in the air conditioning circuit 200 from continuing to increase, the compressor 11 is controlled to stop working, so that the compressor 11 stops converting the heat exchange medium, thereby helping to reduce the risk of air conditioning circuit 200 failure. When the pressure in the air conditioning circuit 200 is lower than the normal range, there may be a risk of insufficient heat exchange medium in the air conditioning circuit 200. By controlling the compressor 11 to stop working, the compressor 11 is allowed to operate under normal conditions, thereby helping to reduce the risk of air conditioning circuit 200 failure.

[0096] In some embodiments of the present invention, such as Figure 1 , Figure 3 and Figure 4 As shown, the thermal management system 1000 may further include: a battery heat exchange circuit 300 and a fourth heat exchanger 17, wherein the heat exchanger inlet of the fourth heat exchanger 17 is connected to the fourth condensing interface 3d, the heat exchanger outlet of the fourth heat exchanger 17 is connected to the compressor 11, and the fourth heat exchanger 17 is adapted to exchange heat with the battery heat exchange circuit 300.

[0097] like Figure 1 and Figure 3As shown, the heat exchange medium in the air conditioning circuit 200 exchanges heat with the first heat exchange circuit 100 through the water-cooled condenser 3, so that the temperature of the heat exchange medium flowing through the water-cooled condenser 3 in the air conditioning circuit 200 is reduced, so that the lower temperature heat exchange medium flows into the fourth heat exchanger 17 to exchange heat with the battery heat exchange circuit 300. It should be noted that, compared to the battery heat exchange circuit 300, the temperature of the heat exchange medium in the air conditioning circuit 200 is lower than that in the battery heat exchange circuit 300. During the heat exchange process between the air conditioning circuit 200 and the battery heat exchange circuit 300, the heat exchange medium in the air conditioning circuit 200 absorbs heat from the heat exchange medium in the battery heat exchange circuit 300, thereby reducing the temperature of the heat exchange medium in the battery heat exchange circuit 300. This ensures that the temperature of the heat exchange medium in the battery heat exchange circuit 300 reaches a suitable operating temperature, thus guaranteeing that the vehicle's power battery 31, located in the battery heat exchange circuit 300, is in a suitable temperature environment. This allows the power battery 31 to operate within its efficient range, reducing the risk of power battery 31 failure and extending its service life. This, in turn, facilitates the application of the thermal management system 1000 in off-road vehicles.

[0098] In some embodiments of the present invention, such as Figure 3 As shown, the air conditioning circuit 200 may also have a second solenoid valve 18 and a second expansion valve 19. The second solenoid valve 18 and the second expansion valve 19 are connected between the fourth heat exchanger 17 and the fourth condenser interface 3d, and the second solenoid valve 18 and the second expansion valve 19 are connected in series.

[0099] like Figure 2 As shown, the second solenoid valve 18 is used to control the connection and disconnection of the fourth heat exchanger 17 and the fourth condenser interface 3d, thereby achieving the effect of selective connection between the fourth heat exchanger 17 and the fourth condenser interface 3d, and thus achieving the effect of selective heat exchange between the air conditioning circuit 200 and the battery heat exchange circuit 300. For example, when the temperature of the heat exchange medium in the battery heat exchange circuit 300 reaches a suitable operating temperature, in order to maintain the battery heat exchange circuit 300 at a suitable operating temperature, the second solenoid valve 18 is controlled to disconnect the fourth heat exchanger 17 and the fourth condenser interface 3d, so that the lower-temperature heat exchange medium in the air conditioning circuit 200 cannot flow into the fourth heat exchanger 17, so that the heat exchange medium in the air conditioning circuit 200 stops absorbing heat from the heat exchange medium in the battery heat exchange circuit 300, and prevents the temperature of the heat exchange medium in the battery heat exchange circuit 300 from continuing to decrease.

[0100] When the temperature of the heat exchange medium in the battery heat exchange circuit 300 is higher than the suitable operating temperature, in order to reduce the temperature of the heat exchange medium in the battery heat exchange circuit 300, the second solenoid valve 18 is controlled to connect the fourth heat exchanger 17 and the fourth condenser interface 3d, so that the lower temperature heat exchange medium in the air conditioning circuit 200 flows into the fourth heat exchanger 17, so that the heat exchange medium in the air conditioning circuit 200 absorbs the heat of the heat exchange medium in the battery heat exchange circuit 300, thereby achieving the effect of reducing the temperature of the heat exchange medium in the battery heat exchange circuit 300.

[0101] Therefore, by setting the second solenoid valve 18 between the fourth heat exchanger 17 and the fourth condenser interface 3d, the air conditioning circuit 200 selectively exchanges heat with the battery heat exchange circuit 300, so that the temperature of the heat exchange medium in the battery heat exchange circuit 300 is always maintained at a suitable operating temperature, thereby ensuring that the power battery 31 is always in the high-efficiency operating range, reducing the risk of power battery 31 failure, and also helping to extend the service life of the power battery 31.

[0102] The second expansion valve 19 can be configured as an electromagnetic expansion valve, such as... Figure 2 As shown, after the heat exchange medium flows through the second expansion valve 19, the heat exchange medium can be converted into a lower temperature heat exchange medium. Therefore, by setting the second expansion valve 19 between the fourth heat exchanger 17 and the fourth condenser interface 3d, the temperature of the heat exchange medium flowing into the fourth heat exchanger 17 is further reduced, so that the heat exchange medium in the air conditioning circuit 200 can absorb more heat from the heat exchange medium in the battery heat exchange circuit 300, thereby improving the heat exchange effect between the air conditioning circuit 200 and the battery heat exchange circuit 300. At the same time, it can achieve the effect of rapidly reducing the temperature of the heat exchange medium in the battery heat exchange circuit 300, so that the power battery 31 can quickly reach a suitable operating temperature and reduce the risk of power battery 31 failure.

[0103] The second expansion valve 19 is connected in series between the second solenoid valve 18 and the fourth heat exchanger 17. When the second solenoid valve 18 is open, the heat exchange medium flows through the second solenoid valve 18 into the second expansion valve 19 for conversion, allowing the heat exchange medium to flow into the fourth heat exchanger 17, thus achieving the effect of connecting the fourth heat exchanger 17 and the fourth condenser interface 3d. When the second solenoid valve 18 is closed, the heat exchange medium cannot flow through the second solenoid valve 18 into the second expansion valve 19 for conversion, allowing the heat exchange medium to flow into the fourth heat exchanger 17, thus achieving the effect of disconnecting the fourth heat exchanger 17 and the fourth condenser interface 3d. By setting the second expansion valve 19 in series between the second solenoid valve 18 and the fourth heat exchanger 17, the effect of controlling whether the heat exchange medium flows into the second expansion valve 19 can be achieved. This allows the second solenoid valve 18 to control the flow of the heat exchange medium into the second expansion valve 19 to convert it to a lower temperature heat exchange medium when heat exchange is not required between the air conditioning circuit 200 and the battery heat exchange circuit 300.

[0104] In some embodiments of the present invention, such as Figure 1 , Figure 4 and Figure 5 As shown, the thermal management system 1000 may further include: a second heat exchange circuit 400, which is used to exchange heat with the vehicle's engine and is also suitable for exchanging heat with the battery heat exchange circuit 300, so that the engine is at a suitable operating temperature and the engine is always in the high-efficiency operating range, which is conducive to reducing the engine's fuel consumption, achieving the effect of reducing vehicle fuel consumption, and at the same time, it is conducive to extending the service life of components.

[0105] like Figure 1 As shown, the engine generates significant heat during operation. This heat is exchanged between the second heat exchange circuit 400 and the battery heat exchange circuit 300, thereby heating the heat exchange medium within the battery heat exchange circuit 300 and raising its temperature. This, in turn, heats the power battery 31. For example, in cold environments, when the temperature of the heat exchange medium within the battery heat exchange circuit 300 is below a suitable temperature, the second heat exchange circuit 400 raises the temperature of the heat exchange medium, bringing the power battery 31 to a suitable operating temperature. This ensures that the power battery 31 remains within its efficient operating range, reduces energy loss, and ultimately increases the vehicle's range.

[0106] In some embodiments of the present invention, such as Figure 1 , Figure 4 and Figure 5 As shown, the second heat exchange circuit 400 has a fifth heat exchanger 41, a sixth heat exchanger 42, a third pipeline 43, and a thermal management control module 44. The engine has a cylinder block 45a and a cylinder head 45b. The heat exchanger outlet of the fifth heat exchanger 41 is connected to the third pipeline 43, and the third pipeline 43 is connected to both the cylinder block 45a and the cylinder head 45b. The heat exchanger inlet of the fifth heat exchanger 41 is selectively connected to the cylinder block 45a. The thermal management control module 44 has a fourth interface 44a, a fifth interface 44b, and a sixth interface 44c. The fourth interface 44a is selectively connected to the sixth heat exchanger 42 and also selectively connected to the third pipeline 43. The fifth interface 44b is connected to the cylinder head 45b. The sixth interface 44c is connected to the third pipeline 43. The sixth heat exchanger 42 is also connected to the third pipeline 43. The sixth heat exchanger 42 is adapted to exchange heat with the battery heat exchange circuit 300.

[0107] The fifth heat exchanger 41 can be constructed as a radiator, such as Figure 5As shown, when the heat exchange medium in the second heat exchange circuit 400 flows through the fifth heat exchanger 41, it achieves the effect of heat exchange between the heat exchange medium in the second heat exchange circuit 400 and the air. It should be noted that the temperature of the heat exchange medium flowing through the fifth heat exchanger 41 is higher than the air temperature. During the heat exchange process of the heat exchange medium flowing through the fifth heat exchanger 41, the air absorbs the heat from the heat exchange medium in the fifth heat exchanger 41, thereby reducing the temperature of the heat exchange medium in the fifth heat exchanger 41, and thus reducing the temperature of the heat exchange medium in the second heat exchange circuit 400.

[0108] like Figure 5 As shown, in some embodiments of the present invention, when the heat exchanger inlet of the fifth heat exchanger 41 is connected to the cylinder block 45a, the heat exchange pipeline of the fifth heat exchanger 41 and the cylinder block 45a is connected, so that the heat exchange medium flowing through the cylinder block 45a can flow into the fifth heat exchanger 41 for heat exchange, thereby achieving the effect of reducing engine temperature. Figure 1 and Figure 5 As shown, when the fifth interface 44b of the thermal management control module 44 is connected to the fourth interface 44a, the heat exchange pipe of the cylinder head 45b is connected to the sixth heat exchanger 42. The heat exchange medium flowing through the heat exchange pipe of the cylinder head 45b flows into the sixth heat exchanger 42, and exchanges heat with the battery heat exchange circuit 300 through the sixth heat exchanger 42, thereby achieving the effect of using the heat generated by the engine to heat the heat exchange medium in the battery heat exchange circuit 300. Furthermore, it avoids the need for an additional device for heating the battery heat exchange circuit 300, thus contributing to energy saving and consumption reduction in the vehicle.

[0109] It should be noted that the temperature of the heat exchange medium flowing through the cylinder head 45b is higher than the temperature of the heat exchange medium in the battery heat exchange circuit 300. Therefore, during the heat exchange process between the heat exchange medium flowing through the cylinder head 45b and the sixth heat exchanger 42 and the battery heat exchange circuit 300, the heat exchange medium in the battery heat exchange circuit 300 absorbs the heat of the heat exchange medium flowing through the cylinder head 45b, thereby achieving the effect of using the heat generated by the engine to heat the heat exchange medium in the battery heat exchange circuit 300.

[0110] like Figure 1 and Figure 5 As shown, when the fifth interface 44b and the sixth interface 44c are connected, the heat exchange pipeline of the cylinder head 45b is connected to the third pipeline 43, so that the heat exchange medium flowing through the cylinder head 45b can be returned to the third pipeline 43 through the thermal management control module 44, thereby achieving the effect of circulating the heat exchange medium, which is beneficial to raising the temperature of the heat exchange medium flowing through the cylinder head 45b.

[0111] For example, when the vehicle is first started, the temperature of the heat exchange medium flowing through the cylinder head 45b is low, and the temperature of the cylinder head 45b has not yet reached the appropriate operating temperature. By controlling the connection between the fifth port 44b and the sixth port 44c, the heat exchange medium flowing through the cylinder head 45b can be returned to the third pipe 43, thereby achieving the effect of heat exchange medium circulation and gradually increasing the temperature of the heat exchange medium flowing through the cylinder head 45b. When the thermal management system 1000 is applied to the vehicle, it enables the vehicle to have a cold start warm-up effect, and the temperature of the cylinder head 45b can quickly reach the appropriate operating temperature, which is beneficial for the engine to operate in the high-efficiency range, reducing fuel consumption and extending the service life of the cylinder head 45b.

[0112] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the thermal management control module 44 may also have a tenth interface 44d and an eleventh interface 44e. The tenth interface 44d is connected to the cylinder block 45a, and the eleventh interface 44e is connected to the heat exchanger inlet of the fifth heat exchanger 41. The tenth interface 44d is selectively connected to the fourth interface 44a, the sixth interface 44c and the eleventh interface 44e.

[0113] like Figure 1 and Figure 5 As shown, when the tenth interface 44d is connected to the fourth interface 44a, the heat exchange pipe of the cylinder block 45a is selectively connected to the sixth heat exchanger 42 and also selectively connected to the third pipe 43. When the heat exchange pipe of the cylinder block 45a is connected to the sixth heat exchanger 42, the heat exchange medium flowing through the heat exchange pipe of the cylinder block 45a flows into the sixth heat exchanger 42, and exchanges heat with the battery heat exchange circuit 300 through the sixth heat exchanger 42. This achieves the effect of using the heat generated by the engine to heat the heat exchange medium in the battery heat exchange circuit 300, and avoids the need for additional devices for heating the battery heat exchange circuit 300, thereby contributing to the energy saving and consumption reduction effect of the vehicle.

[0114] It should be noted that the temperature of the heat exchange medium flowing through the cylinder block 45a is higher than the temperature of the heat exchange medium in the battery heat exchange circuit 300. Therefore, during the heat exchange process between the heat exchange medium flowing through the cylinder block 45a and the sixth heat exchanger 42 and the battery heat exchange circuit 300, the heat exchange medium in the battery heat exchange circuit 300 absorbs the heat of the heat exchange medium flowing through the cylinder block 45a, thereby achieving the effect of using the heat generated by the engine to heat the heat exchange medium in the battery heat exchange circuit 300.

[0115] like Figure 5As shown, when the tenth interface 44d is connected to the sixth interface 44c, the heat exchange pipeline of the cylinder 45a is connected to the third pipeline 43, so that the heat exchange medium flowing through the cylinder 45a can flow back to the third pipeline 43 through the thermal management control module 44, thereby achieving the effect of circulating the heat exchange medium, which is beneficial to increasing the temperature of the heat exchange medium flowing through the cylinder 45a.

[0116] For example, when the vehicle is first started, the temperature of the heat exchange medium flowing through the cylinder block 45a is low, and the temperature of the cylinder block 45a has not yet reached the appropriate operating temperature. By controlling the connection between the tenth interface 44d and the sixth interface 44c, the heat exchange medium flowing through the cylinder block 45a is allowed to flow back to the third pipeline 43, thereby achieving the effect of circulating the heat exchange medium. This allows the temperature of the heat exchange medium flowing through the cylinder block 45a to gradually increase. When the thermal management system 1000 is applied to a vehicle, it enables the vehicle to have a cold start warm-up effect, and the temperature of the cylinder block 45a can quickly reach the appropriate operating temperature. This helps the engine to operate in a high-efficiency range, reducing fuel consumption and extending the service life of the cylinder head 45b.

[0117] like Figure 5 As shown, when the tenth interface 44d and the eleventh interface 44e are connected, the heat exchanger inlet of the fifth heat exchanger 41 is connected to the heat exchange pipeline of the cylinder 45a. When the tenth interface 44d and the eleventh interface 44e are disconnected, the heat exchanger inlet of the fifth heat exchanger 41 is disconnected from the heat exchange pipeline of the cylinder 45a. By selectively connecting the tenth interface 44d to the eleventh interface 44e, the heat exchanger inlet of the fifth heat exchanger 41 is selectively connected to the heat exchange pipeline of the cylinder 45a. Thus, the thermal management system 1000 can control the connection and disconnection of the fifth heat exchanger 41 and the cylinder 45a according to the temperature of the heat exchange medium flowing through the cylinder 45a. When the temperature of the heat exchange medium flowing through the cylinder 45a is higher than the preset temperature, the fifth heat exchanger 41 is connected to the cylinder 45a by controlling it so that the heat exchange medium flowing through the cylinder 45a flows into the fifth heat exchanger 41 to exchange heat with the air, thereby reducing the temperature of the heat exchange medium in the second heat exchange circuit 400, which in turn helps the temperature of the heat exchange medium flowing through the cylinder 45a to reach a suitable working temperature.

[0118] In some embodiments of the present invention, taking an off-road vehicle as an example, the vehicle can have a normal mode and an off-road mode. For example, when the vehicle is in normal mode, if the temperature of the heat exchange medium in the second heat exchange circuit 400 is less than 90°C, the thermal management control module 44 controls the tenth interface 44d to disconnect from the eleventh interface 44e, preventing the heat exchange medium flowing through the cylinder block 45a from being dissipated through the fifth heat exchanger 41, thereby avoiding heat loss in the second heat exchange circuit 400. When the temperature of the heat exchange medium in the second heat exchange circuit 400 is greater than 90°C, the thermal management control module 44 controls the tenth interface 44d to connect to the eleventh interface 44e, so that the heat exchange medium flowing through the cylinder block 45a can be dissipated through the fifth heat exchanger 41, thereby reducing the temperature of the heat exchange medium in the second heat exchange circuit 400. This helps the engine operate in a high-efficiency range, reducing fuel consumption and extending engine life.

[0119] When the vehicle is in off-road mode, when the temperature of the heat exchange medium in the second heat exchange circuit 400 is greater than 70°, the thermal management control module 44 can control the connection between the tenth interface 44d and the eleventh interface 44e. The heat exchange medium flowing through the cylinder block 45a is dissipated through the fifth heat exchanger 41, so as to achieve the effect of the second heat exchange circuit 400 entering the cooling state in advance. This ensures that the heat exchange medium in the second heat exchange circuit 400 is maintained at a suitable temperature during off-road driving, reducing the risk of engine overheating and keeping the engine in the high-efficiency operating range, thereby improving the vehicle's off-road performance.

[0120] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the second heat exchange circuit 400 may also have a third three-way valve 46, which has a seventh port 46a, an eighth port 46b and a ninth port 46c. The seventh port 46a is connected to the fourth port 44a, the eighth port 46b is connected to the heat exchanger inlet of the sixth heat exchanger 42, and the ninth port 46c is connected to the third pipeline 43.

[0121] The third three-way valve 46 can be configured as an electromagnetic three-way proportional valve. The seventh port 46a of the third three-way valve 46 is selectively connected to the eighth port 46b and the ninth port 46c, and can control the flow ratio of the heat exchange medium from the seventh port 46a to the eighth port 46b and the ninth port 46c respectively.

[0122] like Figure 5As shown, when the seventh port 46a and the eighth port 46b are connected, both the cylinder head 45b and the cylinder block 45a can be connected to the sixth heat exchanger 42. This allows the heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a to exchange heat with the battery heat exchange circuit 300 through the sixth heat exchanger 42, thereby achieving the effect of using the heat generated by the engine to heat the heat exchange medium in the battery heat exchange circuit 300. It should be noted that by controlling the adjustment ratio of the electromagnetic three-way proportional valve, the seventh port 46a and the eighth port 46b can be connected, while the seventh port 46a and the ninth port 46c can be disconnected. This ensures that the heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a must first pass through the sixth heat exchanger 42 before flowing back into the third pipe 43.

[0123] When the seventh port 46a is connected to the ninth port 46c, both the cylinder head 45b and the cylinder block 45a can be connected to the third pipe 43, so that the heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a can flow back to the third pipe 43 through the third three-way valve 46, thereby achieving the effect of circulating the heat exchange medium, which is beneficial to raising the temperature of the heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a.

[0124] It should be noted that by controlling the adjustment ratio of the third three-way valve 46, the seventh port 46a and the ninth port 46c can be connected, and the seventh port 46a and the eighth port 46b can be disconnected. This allows the heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a to flow back into the third pipeline 43 through the third three-way valve 46. The heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a does not pass through the sixth heat exchanger 42, which helps to avoid heat loss of the heat exchange medium.

[0125] In addition, by controlling the adjustment ratio of the third three-way valve 46, the flow rate of the heat exchange medium through the sixth heat exchanger 42 can be controlled, thereby controlling the amount of heat exchange between the sixth heat exchanger 42 and the battery heat exchange circuit 300, and thus controlling the temperature of the heat exchange medium in the battery heat exchange circuit 300 to be at a suitable operating temperature.

[0126] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the second heat exchange circuit 400 may also have a seventh heat exchanger 47, which is connected between the seventh port 46a and the fourth port 44a. The seventh heat exchanger 47 is used to heat the crew compartment, thereby achieving the effect of heating the crew compartment and improving the user experience.

[0127] like Figure 5As shown, when the seventh heat exchanger 47 is connected to the fourth interface 44a, under the control of the thermal management control module 44, the heat exchange medium flowing through the cylinder head 45b and cylinder block 45a can be transported to the seventh heat exchanger 47, so that the heat exchange medium flowing through the seventh heat exchanger 47 can exchange heat with the air, thereby achieving the effect of heating the passenger compartment using the seventh heat exchanger 47. It should be noted that the air exchanging heat with the seventh heat exchanger 47 can flow into the passenger compartment of the vehicle. Compared with the air, the heat exchange medium flowing through the cylinder head 45b and cylinder block 45a has a higher temperature. When the air exchanges heat with the seventh heat exchanger 47, the heat generated during the engine operation is used to raise the temperature of the air exchanging heat with the seventh heat exchanger 47, thereby achieving the effect of heating the passenger compartment using the seventh heat exchanger 47. Furthermore, by using the heat generated by the engine to heat the passenger compartment, the need for additional devices for heating the passenger compartment is avoided, which is conducive to achieving the effect of energy saving and consumption reduction in the vehicle.

[0128] In addition, by setting a seventh heat exchanger 47 between the seventh port 46a and the fourth port 44a, the heat exchange medium flowing through the cylinder head 45b and the cylinder block 45a must first pass through the seventh heat exchanger 47 before flowing into the sixth heat exchanger 42 through the third three-way valve 46, thereby achieving the effect of prioritizing the heating of the crew compartment.

[0129] In some embodiments of the present invention, such as Figure 5 As shown, a fourth pipe 48 is connected between the seventh interface 46a and the fourth interface 44a. A seventh heat exchanger 47 is disposed in the fourth pipe 48. The second heat exchange circuit 400 also has a heating element for heating the fourth pipe 48. When the temperature of the heat exchange medium flowing through the fourth pipe 48 is low, the heating element can heat the heat exchange medium flowing through the fourth pipe 48, which is beneficial to achieving the effect of the second heat exchange circuit 400 for heating the battery heat exchange circuit 300 and the crew compartment.

[0130] In some embodiments of the present invention, such as Figure 5As shown, the heating element may include a heater 81 and an exhaust gas recirculation heat exchanger 82. The heater 81 may be a device constructed as a PTC (Positive Temperature Coefficient, generally referring to semiconductor materials or components with a large positive temperature coefficient) or a fuel heater, etc., for heating the heat exchange medium flowing through the fourth pipe 48. This allows the heater 81 to be used to heat the heat exchange medium flowing through the fourth pipe 48. In some embodiments of the present invention, taking the heater 81 as a PTC as an example, it is beneficial to improve the effect of the heater 81 in heating the heat exchange medium in the fourth pipe 48. The exhaust gas recirculation heat exchanger 82 has heat exchange pipes, and the fourth pipe 48 is connected to the heat exchange pipes of the exhaust gas recirculation heat exchanger 82, so that the heat exchange medium absorbs heat during the process of flowing through the exhaust gas recirculation heat exchanger 82, thereby realizing the use of the heat from the exhaust gas recirculation heat exchanger 82 to heat the heat exchange medium flowing through the fourth pipe 48, which is beneficial to achieving the effect of energy saving and consumption reduction in vehicles.

[0131] In some embodiments of the present invention, such as Figure 5 As shown, the fourth pipeline 48 is equipped with a second drive pump 49. The second drive pump 49 can be constructed as a dynamic pump or a positive displacement pump, etc. The second drive pump 49 is used to drive the flow of the heat exchange medium in the fourth pipeline 48, which is beneficial to realize the effect of the second heat exchange circuit 400 in heating the battery heat exchange circuit 300 and the crew compartment.

[0132] In some embodiments of the present invention, such as Figure 1 As shown, the thermal management system 1000 may further include an air supply device 70, which is used to exchange heat between the drive air and the second heat exchanger 13 and the seventh heat exchanger 47, thereby achieving the effect of cooling and heating the crew cabin.

[0133] In some embodiments of the present invention, such as Figure 1 As shown, the air supply device 70 can be configured as a blower or a fan. The air supply device 70 is located on the side close to the second heat exchanger 13 and the seventh heat exchanger 47. When the air supply device 70 is working, it drives the air to flow towards the second heat exchanger 13 and the seventh heat exchanger 47 and drives the air to flow into the passenger compartment, so that the air exchanges heat with the second heat exchanger 13 and the seventh heat exchanger 47 before flowing into the passenger compartment, thereby achieving the effect of cooling and heating the passenger compartment, which in turn helps to improve the user experience.

[0134] In some embodiments of the present invention, such as Figure 5As shown, the engine may also include a turbocharger 45c and an oil cooler 45d. A third pipe 43 is connected to both the turbocharger inlet and outlet of the turbocharger 45c. The turbocharger inlet and outlet are connected to the heat exchange pipe of the turbocharger 45c, achieving the effect of connecting the third pipe 43 to the heat exchange pipe of the turbocharger 45c. The heat exchange pipe of the turbocharger 45c is used for heat exchange in the turbocharger 45c. In the second heat exchange circuit 400, when the heat exchange medium flows through the heat exchange pipe of the turbocharger 45c, the heat exchange medium exchanges heat with the turbocharger 45c, thereby helping to reduce the temperature of the turbocharger 45c and keeping it at a suitable operating temperature.

[0135] The inlet and outlet of the oil cooler 45d are connected to the third pipe 43 and the cylinder block 45a, respectively. The inlet and outlet are connected to the heat exchange pipe of the oil cooler 45d, thus connecting the third pipe 43 to the heat exchange pipe of the turbocharger 45c. The heat exchange pipe of the oil cooler 45d is used for heat exchange within the oil cooler 45d. In the second heat exchange circuit 400, when the heat exchange medium flows through the heat exchange pipe of the oil cooler 45d, it exchanges heat with the oil cooler 45d, thereby reducing the oil temperature within the oil cooler 45d and maintaining the oil at a suitable operating temperature. The cooler outlet is connected to the cylinder block 45a, allowing the heat exchange medium to flow into the heat exchange pipe of the cylinder block 45a after heat exchange in the oil cooler 45d, further reducing the temperature of the cylinder block 45a.

[0136] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the thermal management system 1000 may further include: a second air supply component 50, which is adapted to blow air toward the fifth heat exchanger 41 so as to facilitate heat exchange between the heat exchange medium flowing through the fifth heat exchanger 41 and the air in the second heat exchange circuit 400, thereby achieving the effect of rapidly reducing the temperature of the heat exchange medium in the second heat exchange circuit 400, and thus helping the engine temperature to quickly reach a suitable operating temperature.

[0137] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the second air supply component 50 can be constructed as an electrically controlled silicone oil fan or a regular cooling fan. In this embodiment of the invention, the second air supply component 50 is constructed as an electrically controlled silicone oil fan, thereby achieving the effect of the second air supply component 50 blowing air toward the fifth heat exchanger 41, which is beneficial for the air to exchange heat with the fifth heat exchanger 41, so that the temperature of the heat exchange medium flowing through the fifth heat exchanger 41 can be rapidly reduced.

[0138] In some embodiments of the present invention, such as Figure 5As shown, the third pipeline 43 is equipped with a third drive pump 51. The third drive pump 51 can be constructed as a dynamic pump or a positive displacement pump, etc. The third drive pump 51 is used to drive the flow of heat exchange medium in the third pipeline 43, which is conducive to achieving the effect of heat exchange medium flow in the second heat exchange circuit 400, and thus conducive to the heat exchange medium in the second heat exchange circuit 400 being at a suitable temperature.

[0139] In some embodiments of the present invention, such as Figure 1 and Figure 5 As shown, the thermal management system 1000 may further include: a first expansion vessel 61, which is connected to a second heat exchange circuit 400. The first expansion vessel 61 may have a first connection port 61a and a second connection port 61b. The heat exchange medium in the second heat exchange circuit 400 is adapted to flow into the first expansion vessel 61 from the first connection port 61a, and the heat exchange medium in the first expansion vessel 61 is adapted to flow into the second heat exchange circuit 400 from the second connection port 61b, thereby facilitating the maintenance of the pressure in the second heat exchange circuit 400.

[0140] When the pressure in the second heat exchange circuit 400 is too high or the amount of heat exchange medium in the second heat exchange circuit 400 is too large, the heat exchange medium in the second heat exchange circuit 400 flows into the first expansion tank 61 from the first connecting port 61a, thereby reducing the pressure in the second heat exchange circuit 400. When the pressure in the second heat exchange circuit 400 is too low or the amount of heat exchange medium in the second heat exchange circuit 400 is too small, the heat exchange medium in the first expansion tank 61 flows into the second heat exchange circuit 400 from the second connecting port 61b, thereby maintaining the pressure in the second heat exchange circuit 400 and replenishing the heat exchange medium in the second heat exchange circuit 400.

[0141] In some embodiments of the present invention, the first expansion vessel 61 may also have a first exhaust channel, which is used to exhaust the gas in the first expansion vessel 61, thereby achieving the effect of exhausting the gas in the second heat exchange circuit 400, which is beneficial to improving the working reliability of the second heat exchange circuit 400.

[0142] Since the heat exchange medium generates gas during the heat exchange process in the second heat exchange circuit 400, the first expansion vessel 61 is connected to the second heat exchange circuit 400 so that the gas generated in the second heat exchange circuit 400 can flow into the first expansion vessel 61 from the first connection port 61a, and the gas is discharged from the first expansion vessel 61 through the first exhaust channel, thereby achieving the effect of discharging the gas in the second heat exchange circuit 400, which is beneficial to improving the working reliability of the second heat exchange circuit 400.

[0143] In some embodiments of the present invention, such as Figure 5As shown, the thermal management system 1000 may further include: a second expansion vessel 62, in which a first storage space 621 and a second storage space 622 are formed. The first storage space 621 is connected to the first heat exchange circuit 100, and the second storage space 622 is connected to the battery heat exchange circuit 300. By setting the second expansion vessel 62 to have a first storage space 621 and a second storage space 622, the second storage space 622 and the battery heat exchange circuit 300 share a second expansion vessel 62, thereby making the structure of the thermal management system 1000 more compact.

[0144] In some embodiments of the present invention, such as Figure 5 As shown, the second expansion vessel 62 may have a third connecting port 621a, a fourth connecting port 621b, a fifth connecting port 622a, and a sixth connecting port 622b. The third connecting port 621a and the fourth connecting port 621b are both connected to the first storage space 621, so that the heat exchange medium of the first heat exchange circuit 100 is suitable to flow into the first storage space 621 from the third connecting port 621a, and the heat exchange medium in the first storage space 621 is suitable to flow into the first heat exchange circuit 100 from the fourth connecting port 621b, thereby helping to maintain the pressure of the first heat exchange circuit 100.

[0145] Both the fifth connection port 622a and the sixth connection port 622b are connected to the second storage space 622, so that the heat exchange medium of the battery heat exchange circuit 300 is suitable to flow into the second storage space 622 from the fifth connection port 622a, and the heat exchange medium in the second storage space 622 is suitable to flow into the battery heat exchange circuit 300 from the sixth connection port 622b, thereby helping to maintain the pressure of the battery heat exchange circuit 300.

[0146] In some embodiments of the present invention, the second expansion vessel 62 may also have a second exhaust channel and a third exhaust channel. The second exhaust channel is used to exhaust the gas in the first storage space 621, and the third exhaust channel is used to exhaust the gas in the second storage space 622, thereby achieving the effect of exhausting the gas in the first heat exchange circuit 100 and the battery heat exchange circuit 300, which is beneficial to improving the working reliability of the first heat exchange circuit 100 and the battery heat exchange circuit 300.

[0147] According to an embodiment of the present invention, the vehicle includes the thermal management system 1000 described above.

[0148] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0149] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A thermal management system for a vehicle, characterized in that, include: The first heat exchange circuit includes a first heat exchanger, a first three-way valve, a water-cooled condenser, a first drive pump, and a heat exchange flow path. The first three-way valve has a first port, a second port, and a third port. The water-cooled condenser has a first condensing port, a second condensing port, a third condensing port, and a fourth condensing port that are connected. The first port and the first condensing port are connected. The second port is connected to the heat exchanger inlet of the first heat exchanger. The second condensing port is connected to the third port and the heat exchanger outlet of the first heat exchanger. The first drive pump is used to drive the flow of heat exchange medium in the first heat exchange circuit. One end of the heat exchange flow path is connected to the first port, and the other end of the heat exchange flow path is connected to the heat exchanger outlet of the first heat exchanger and the third port. The heat exchange flow path includes components of the vehicle. An air conditioning circuit is used to cool the passenger compartment of the vehicle. The air conditioning circuit has a compressor, a first expansion valve and a second heat exchanger. The compressor, the first expansion valve and the second heat exchanger are connected in series. The third condenser interface and the fourth condenser interface are respectively connected to the compressor and the first expansion valve. A battery heat exchange circuit and a fourth heat exchanger, wherein the heat exchanger inlet of the fourth heat exchanger is connected to the fourth condensation interface, the heat exchanger outlet of the fourth heat exchanger is connected to the compressor, and the fourth heat exchanger is adapted to exchange heat with the battery heat exchange circuit; The second heat exchange circuit is used for heat exchange with the engine of the vehicle and is also adapted to exchange heat with the battery heat exchange circuit. The second heat exchange circuit has a fifth heat exchanger, a sixth heat exchanger, a third pipeline, and a thermal management control module. The engine has a cylinder block and a cylinder head. The heat exchanger outlet of the fifth heat exchanger is connected to the third pipeline, and the third pipeline is connected to both the cylinder block and the cylinder head. The heat exchanger inlet of the fifth heat exchanger is selectively connected to the cylinder block. The thermal management control module has a fourth interface, a fifth interface, and a sixth interface. The fourth interface is selectively connected to the sixth heat exchanger and also selectively connected to the third pipeline. The fifth interface is connected to the cylinder head. The sixth interface is connected to the third pipeline. The sixth heat exchanger is also connected to the third pipeline. The sixth heat exchanger is adapted to exchange heat with the battery heat exchange circuit.

2. The vehicle thermal management system according to claim 1, characterized in that, There are multiple heat exchange flow paths, and the multiple heat exchange flow paths are connected in parallel.

3. The vehicle thermal management system according to claim 1, characterized in that, Also includes: A first air supply component is adapted to blow air toward the first heat exchanger.

4. The vehicle thermal management system according to claim 1, characterized in that, Also includes: The third heat exchanger, the air conditioning circuit also has a first pipeline and a second pipeline, the first pipeline is connected to the fourth condensing interface and the first expansion valve, the second pipeline is connected to the second heat exchanger and the compressor, and the third heat exchanger is used to exchange heat between the first pipeline and the second pipeline.

5. The vehicle thermal management system according to claim 4, characterized in that, The first pipeline is equipped with a first solenoid valve.

6. The vehicle thermal management system according to claim 1, characterized in that, The air conditioning circuit also has a pressure sensor located between the compressor and the third condenser interface.

7. The vehicle thermal management system according to claim 1, characterized in that, The air conditioning circuit also has a second solenoid valve and a second expansion valve. The second solenoid valve and the second expansion valve are connected between the fourth heat exchanger and the fourth condenser interface, and the second solenoid valve and the second expansion valve are connected in series.

8. The vehicle thermal management system according to claim 1, characterized in that, The second heat exchange circuit also has a third three-way valve, which has a seventh port, an eighth port and a ninth port. The seventh port is connected to the fourth port, the eighth port is connected to the heat exchanger inlet of the sixth heat exchanger, and the ninth port is connected to the third pipeline.

9. The vehicle thermal management system according to claim 8, characterized in that, The second heat exchange circuit also has a seventh heat exchanger connected between the seventh port and the fourth port, the seventh heat exchanger being used to heat the crew compartment.

10. The vehicle thermal management system according to claim 9, characterized in that, A fourth pipeline is connected between the seventh interface and the fourth interface. The seventh heat exchanger is located on the fourth pipeline. The second heat exchange circuit also has a heating element, which is used to heat the fourth pipeline.

11. The vehicle thermal management system according to claim 10, characterized in that, The fourth pipeline is equipped with a second drive pump.

12. The vehicle thermal management system according to claim 1, characterized in that, The engine also has a turbocharger and an oil cooler. The third pipeline is connected to both the turbocharger inlet and the turbocharger outlet. The oil cooler inlet and outlet are connected to the third pipeline and the cylinder block, respectively.

13. The vehicle thermal management system according to claim 1, characterized in that, Also includes: A second air supply component is adapted to blow air toward the fifth heat exchanger.

14. The vehicle thermal management system according to claim 1, characterized in that, The third pipeline is equipped with a third drive pump.

15. The vehicle thermal management system according to claim 1, characterized in that, Also includes: The first expansion vessel is connected to the second heat exchange circuit.

16. The vehicle thermal management system according to claim 7, characterized in that, Also includes: The second expansion vessel has a first storage space and a second storage space inside. The first storage space is connected to the first heat exchange circuit, and the second storage space is connected to the battery heat exchange circuit.

17. A vehicle, characterized in that, The vehicle thermal management system includes any one of claims 1-16.

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