Heat management system and hybrid vehicle having the same

Abstract

The utility model provides a kind of heat management system and the hybrid vehicle with it, wherein, heat management system is used for hybrid vehicle, heat management system includes: engine intake pipeline is connected with engine and is used to pass into gas to engine;Intercooler is arranged on engine intake pipeline and intercooler circulation loop;Intercooler circulation loop exchanges heat with the gas in engine intake pipeline by intercooler;Battery heat exchange circulation loop is used to exchange heat with battery;First switching structure is arranged between intercooler circulation loop and battery heat exchange circulation loop and has first working state and second working state.The technical scheme of the utility model can solve the problem that the mode of cooling engine intake in hybrid vehicle in related technology cannot meet the demand of cooling engine intake during the operation of hybrid vehicle under high temperature working condition in summer.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, and more specifically, to a thermal management system and a hybrid vehicle having the same. Background Technology

[0002] Hybrid vehicles are vehicles that use both gasoline and electric power. Their advantage lies in the fact that during start-up and stop, only the electric motor drives the vehicle; the engine stops working until a certain speed is reached, thus keeping the engine in optimal operating condition, resulting in good power and very low emissions. Furthermore, the electricity is generated entirely by the engine, requiring only gasoline. The key to hybrid vehicles is the hybrid powertrain, whose performance directly affects the overall vehicle performance. After more than a decade of development, hybrid powertrain assemblies have evolved from a discrete structure of engine and electric motor to an integrated structure of engine, electric motor, and transmission—the integrated hybrid powertrain system. Hybrid vehicles offer high fuel economy and superior driving performance. While the engine in a hybrid vehicle still uses gasoline, the electric motor assists during start-up and acceleration, reducing fuel consumption. Simply put, compared to a similarly sized pure gasoline-powered vehicle, fuel costs are lower.

[0003] In existing hybrid vehicles, in addition to the engine, there is also a battery. When the vehicle is running, if the battery temperature exceeds a certain limit, it needs to be cooled by the vehicle's onboard air conditioning system. In summer conditions, when the engine is running, the turbocharged intake air, even after passing through a water-cooled intercooler, remains at a relatively high temperature, thus reducing engine power. Similarly, when the intake air temperature of a naturally aspirated engine is high, its power will also decrease. In other words, the current methods of cooling the engine intake air in hybrid vehicles cannot meet the cooling needs of hybrid vehicles operating under high-temperature conditions in summer. Utility Model Content

[0004] The main objective of this invention is to provide a thermal management system and a hybrid vehicle having the same, in order to solve the problem that the cooling methods for engine intake air in hybrid vehicles in the related art cannot meet the cooling requirements of engine intake air during operation of hybrid vehicles under high-temperature conditions in summer.

[0005] To achieve the above objectives, according to one aspect of the present invention, a thermal management system is provided for a hybrid vehicle. The thermal management system includes: an engine intake manifold connected to the engine and used to introduce gas into the engine; an intercooler disposed on the engine intake manifold; an intercooler circulation loop, wherein the intercooler is also disposed on the intercooler circulation loop, and the intercooler circulation loop exchanges heat with the gas in the engine intake manifold through the intercooler; a battery heat exchange circulation loop for exchanging heat with the battery; and a first switching structure disposed between the intercooler circulation loop and the battery heat exchange circulation loop and having a first operating state and a second operating state. When the first switching structure is in the first operating state, the intercooler circulation loop and the battery heat exchange circulation loop are independent of each other. When the first switching structure is in the second operating state, the intercooler circulation loop and the battery heat exchange circulation loop are connected in series.

[0006] Furthermore, the first switching structure includes a first valve body disposed in the battery heat exchange circulation loop, a second valve body disposed in the intercooler circulation loop, a first connecting pipe connecting the first valve body and the intercooler circulation loop, and a second connecting pipe connecting the second valve body and the battery heat exchange circulation loop. When the first switching structure is in a first operating state, the first valve body connects the battery heat exchange circulation loop and blocks the battery heat exchange circulation loop and the first connecting pipe; the second valve body connects the intercooler circulation loop and blocks the intercooler circulation loop and the second connecting pipe. When the first switching structure is in a second operating state, the first valve body blocks the battery heat exchange circulation loop and connects the battery heat exchange circulation loop and the first connecting pipe; the second valve body blocks the intercooler circulation loop and connects the intercooler circulation loop and the second connecting pipe.

[0007] Furthermore, the intercooler circulation loop includes a first pump body and a radiator.

[0008] Furthermore, the intercooler circulation loop also includes a second switching structure, which has a third working state and a fourth working state. When the second switching structure is in the third working state, the two ends of the radiator are connected to the first pump body and the intercooler respectively. When the second switching structure is in the fourth working state, the second switching structure blocks the radiator from the first pump body or blocks the radiator from the intercooler, and makes the intercooler and the first pump body directly connected through the second switching structure.

[0009] Furthermore, the second switching structure includes a third valve body disposed between the first end of the radiator and the first pump body, and a third connecting pipe connected between the second end of the radiator and the third valve body. When the second switching structure is in the third working state, the third valve body connects the first end of the radiator and the first pump body and blocks the third connecting pipe. When the second switching structure is in the fourth working state, the third valve body blocks the first end of the radiator and the first pump body and connects the third connecting pipe and the first pump body.

[0010] Furthermore, the battery heat exchange circulation loop includes a second pump body, and the battery is located within the battery heat exchange circulation loop; the first switching structure includes a fourth valve body and a fourth connecting pipe, the fourth valve body being disposed between the first end of the radiator and the first pump body, and between the second pump body and the battery, the first end of the fourth connecting pipe being connected to the fourth valve body, and the second end of the fourth connecting pipe being connected between the second end of the radiator and the intercooler; when the first switching structure is in a first working state, the fourth valve body connects the second pump body and the battery, connects the first pump body and the radiator, blocks the battery and the first pump body, blocks the second pump body and the radiator, and blocks the fourth connecting pipe; when the first switching structure is in a second working state, the fourth valve body connects the battery and the first pump body, connects the second pump body and the radiator, blocks the second pump body and the battery, blocks the first pump body and the radiator, and blocks the fourth connecting pipe; the first switching structure also includes a fifth working state, when the first switching structure is in a fifth working state, the fourth valve body connects the battery and the first pump body, connects the fourth connecting pipe and the second pump body, blocks the battery and the second pump body, and blocks the radiator.

[0011] Furthermore, the thermal management system also includes a refrigeration circuit, on which a battery heat exchanger is installed. The battery heat exchanger is also installed on the battery heat exchange circulation circuit, and the battery heat exchange circulation circuit exchanges heat with the refrigeration circuit through the battery heat exchanger.

[0012] Furthermore, the refrigeration circuit includes a refrigeration branch, a crew compartment heat exchange branch, and a battery heat exchange branch. The two ends of the crew compartment heat exchange branch are respectively connected to the two ends of the refrigeration branch, and the battery heat exchange branch is set in parallel with the crew compartment heat exchange branch.

[0013] Furthermore, an evaporator and a fifth valve are provided on the crew compartment heat exchange branch, the fifth valve being able to block or connect the crew compartment heat exchange branch; and / or, a battery heat exchanger and a sixth valve are provided on the battery heat exchange branch, the sixth valve being able to block or connect the battery heat exchange branch.

[0014] Furthermore, the battery heat exchange loop includes a second pump and a heater.

[0015] According to another aspect of the present invention, a hybrid vehicle is provided, including a thermal management system, wherein the thermal management system is the thermal management system described above.

[0016] By applying the technical solution of this utility model, the intercooler circulation loop can cool the gas in the engine intake pipe, keeping the temperature of the gas entering the engine within a suitable range to improve engine efficiency and power performance. A first switching structure is positioned between the intercooler circulation loop and the battery heat exchange circulation loop, controlling their connection state. When the engine intake air temperature is low, the first switching structure can be controlled in a first operating state, meaning the intercooler circulation loop and the battery heat exchange circulation loop operate independently. In this case, cooling the engine intake air solely through the intercooler circulation loop is sufficient to meet the engine's intake air temperature requirements. When the engine intake air temperature is high, the first switching structure can be controlled in a second operating state, meaning the intercooler circulation loop and the battery heat exchange circulation loop are connected in series. In this case, both the intercooler circulation loop and the battery heat exchange circulation loop work together to cool the engine intake air and meet the engine's intake air temperature requirements. By setting the first switching structure, effective cooling of the engine intake air can be achieved under different operating conditions (especially high-temperature conditions in summer), thereby improving engine efficiency and power performance. Therefore, the technical solution of this utility model can solve the problem that the cooling method for engine intake air in hybrid vehicles in related technologies cannot meet the cooling requirements of engine intake air during operation of hybrid vehicles under high-temperature conditions in summer. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of a thermal management system according to an embodiment of the present invention is shown, wherein the first switching structure is in a first working state and the battery heat exchange loop does not exchange heat with the refrigeration loop;

[0019] Figure 2 It shows Figure 1 A schematic diagram of the thermal management system, wherein the first switching structure is in the second working state and the battery heat exchange loop does not exchange heat with the cooling loop;

[0020] Figure 3 It shows Figure 1 A schematic diagram of the thermal management system, wherein the first switching structure is in the second working state and the battery heat exchange loop exchanges heat with the cooling loop;

[0021] Figure 4A schematic diagram of an embodiment of the thermal management system according to the present invention is shown, wherein the first switching structure is in a first working state, the second switching structure is in a third working state, and the battery heat exchange loop does not exchange heat with the refrigeration loop.

[0022] Figure 5 It shows Figure 4 A schematic diagram of the thermal management system, wherein the first switching structure is in the second working state, the second switching structure is in the third working state and the battery heat exchange loop does not exchange heat with the refrigeration loop.

[0023] Figure 6 It shows Figure 4 A schematic diagram of the thermal management system, wherein the first switching structure is in the second working state, the second switching structure is in the fourth working state, and the battery heat exchange loop and the refrigeration loop exchange heat.

[0024] Figure 7 A schematic diagram of the system structure of one embodiment of the thermal management system according to the present invention is shown;

[0025] Figure 8 A schematic diagram of the system structure of one embodiment of the thermal management system according to the present invention is shown;

[0026] Figure 9 A schematic diagram of the system structure of one embodiment of the thermal management system according to the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Engine; 20. Intercooler; 30. Battery; 40. First switching structure; 41. First valve body; 42. Second valve body; 43. First connecting pipe; 44. Second connecting pipe; 45. Fourth valve body; 46. Fourth connecting pipe; 47. Seventh valve body; 50. Battery heat exchanger;

[0029] 100. Engine intake manifold; 101. Air filter; 102. Air compressor; 103. Throttle valve;

[0030] 200. Intercooler circulation loop; 201. First pump body; 202. Radiator; 203. Second switching structure; 2031. Third valve body; 2032. Third connecting pipe;

[0031] 300. Battery heat exchange circulation loop; 301. Second pump body; 302. Heater;

[0032] 400, Refrigeration circuit; 410, Refrigeration branch; 411, Condenser; 412, Compressor; 420, Passenger compartment heat exchange branch; 421, Evaporator; 422, Fifth valve body; 430, Battery heat exchange branch; 431, Sixth valve body. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] like Figure 1 and Figure 2As shown, this application provides a thermal management system for hybrid vehicles. One embodiment of the thermal management system of this application includes: an engine intake manifold 100, an intercooler 20, an intercooler circulation loop 200, a battery heat exchange circulation loop 300, and a first switching structure 40. The engine intake manifold 100 is connected to the engine 10 and is used to supply gas to the engine 10; the intercooler 20 is disposed on the engine intake manifold 100; the intercooler 20 is also disposed on the intercooler circulation loop 200, and the intercooler circulation loop 200 exchanges heat with the gas in the engine intake manifold 100 through the intercooler 20; the battery heat exchange circulation loop 300 is used to exchange heat with the battery 30; the first switching structure 40 is disposed between the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 and has a first working state and a second working state. When the first switching structure 40 is in the first working state, the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 are independent of each other. When the first switching structure 40 is in the second working state, the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 are connected in series.

[0037] By applying the technical solution of this embodiment, the intercooler circulation loop 200 can cool the gas in the engine intake pipe 100, so that the temperature of the gas entering the engine 10 is kept within a suitable temperature range, thereby improving the working efficiency and power performance of the engine 10. The first switching structure 40 is positioned between the intercooler circulation loop 200 and the battery heat exchange circulation loop 300. It controls the connection state of these two loops. When the engine intake air temperature is low, the first switching structure 40 is in a first operating state, meaning the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 operate independently. In this case, cooling the engine intake air solely through the intercooler circulation loop 200 is sufficient to meet the engine 10's intake air temperature requirements. When the engine intake air temperature is high, the first switching structure 40 is in a second operating state, meaning the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 are connected in series. In this case, both loops work together to cool the engine intake air, meeting the engine 10's intake air temperature requirements. By setting the first switching structure 40, effective cooling of the engine intake air can be achieved under different operating conditions (especially high-temperature conditions in summer), thereby improving the engine 10's operating efficiency and power performance. Therefore, the technical solution of this embodiment can solve the problem that the cooling method for engine intake air in hybrid vehicles in related technologies cannot meet the cooling requirements of engine intake air during operation of hybrid vehicles under high-temperature conditions in summer.

[0038] Specifically, the engine intake manifold 100 includes an air filter 101, a compressor 102, and a throttle valve 103. The air filter 101 effectively filters dust, sand, impurities, and other solid particles from the air entering the engine intake manifold 100, preventing these particles from entering the engine 10 and scratching its inner walls. The compressor 102 compresses the air entering the engine intake manifold 100 to increase its pressure and density, improving the engine 10's charging efficiency, thereby enhancing its power output and fuel economy. Adjusting the opening of the throttle valve 103 controls the amount of air entering the engine 10, effectively controlling its output power and speed.

[0039] Specifically, the intercooler 20 can be a water-cooled intercooler, an air-cooled intercooler, or other types of intercoolers.

[0040] like Figures 1 to 3 As shown, the first switching structure 40 includes a first valve body 41 disposed in the battery heat exchange circulation loop 300, a second valve body 42 disposed in the intercooler circulation loop 200, a first connecting pipe 43 connecting the first valve body 41 and the intercooler circulation loop 200, and a second connecting pipe 44 connecting the second valve body 42 and the battery heat exchange circulation loop 300. When the first switching structure 40 is in a first working state, the first valve body 41 connects the battery heat exchange circulation loop 300 and blocks the battery heat exchange circulation loop 300 and the first connecting pipe 43, and the second valve body 42 connects the intercooler circulation loop 200 and blocks the intercooler circulation loop 200 and the second connecting pipe 44. When the first switching structure 40 is in a second working state, the first valve body 41 blocks the battery heat exchange circulation loop 300 and connects the battery heat exchange circulation loop 300 and the first connecting pipe 43, and the second valve body 42 blocks the intercooler circulation loop 200 and connects the intercooler circulation loop 200 and the second connecting pipe 44.

[0041] like Figure 1 As shown, controlling the first valve body 41 and the second valve body 42 puts the first switching structure 40 into a first working state, blocking the first connecting pipe 43 and the second connecting pipe 44, thereby making the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 independent of each other; as Figure 2 and Figure 3 As shown, controlling the first valve body 41 and the second valve body 42 causes the first switching structure 40 to be in the second working state, blocking the battery heat exchange circulation loop 300 between the first valve body 41 and the second connecting pipe 44, and blocking the intercooler circulation loop 200 between the second valve body 42 and the first connecting pipe 43, so that the coolant flows through the battery heat exchange circulation loop 300, the second connecting pipe 44, the intercooler circulation loop 200 and the first connecting pipe 43, realizing the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 in series.

[0042] Specifically, the first valve body 41 and the second valve body 42 are three-way valves. For example... Figure 7 and Figure 8 As shown, in one embodiment, the first valve body 41, the second valve body 42, the first connecting pipe 43, and the second connecting pipe 44 are replaced by a seventh valve body 47, wherein the seventh valve body 47 is a four-way valve. The above arrangement can further simplify the structure of the thermal management system.

[0043] like Figures 1 to 3 As shown, the intercooler circulation loop 200 includes a first pump body 201 and a radiator 202. The first pump body 201 pressurizes the coolant in the pipes to drive the coolant flow in the intercooler circulation loop 200. When the coolant flows through the intercooler 20, it exchanges heat with the gas in the engine intake pipe 100. The radiator 202 then dissipates the heat from the coolant into the outside air, thus enabling the intercooler circulation loop 200 to continuously cool the engine intake air.

[0044] like Figures 4 to 6 and Figure 8 As shown, the intercooler circulation loop 200 also includes a second switching structure 203. The second switching structure 203 has a third working state and a fourth working state. When the second switching structure 203 is in the third working state, the two ends of the radiator 202 are connected to the first pump body 201 and the intercooler 20, respectively. When the second switching structure 203 is in the fourth working state, the second switching structure 203 blocks the radiator 202 from the first pump body 201 or blocks the radiator 202 from the intercooler 20, and makes the intercooler 20 and the first pump body 201 directly connected through the second switching structure 203.

[0045] When the ambient temperature is low, the first switching structure 40 is controlled to be in the first working state to cool the gas in the engine intake pipe 100. Since the temperature of the outside air is lower than the temperature after the coolant exchanges heat with the gas in the engine intake pipe 100, the second switching structure 203 is controlled to be in the third working state. The coolant after exchanging heat with the gas in the engine intake pipe 100 can be cooled through the radiator 202. When the ambient temperature is high, the first switching structure 40 is controlled to be in the second working state to cool the gas in the engine intake pipe 100. Since the temperature of the outside air is higher than the temperature after the coolant exchanges heat with the gas in the engine intake pipe 100, the second switching structure 203 is controlled to switch to the fourth working state so that the coolant flowing through the intercooler 20 does not pass through the radiator 202, so as to prevent the outside air from heating the coolant flowing through it by passing through the radiator 202.

[0046] like Figures 4 to 6 and Figure 8As shown, the second switching structure 203 includes a third valve body 2031 disposed between the first end of the radiator 202 and the first pump body 201, and a third connecting pipe 2032 connected between the second end of the radiator 202 and the third valve body 2031. When the second switching structure 203 is in the third working state, the third valve body 2031 connects the first end of the radiator 202 and the first pump body 201 and blocks the third connecting pipe 2032. When the second switching structure 203 is in the fourth working state, the third valve body 2031 blocks the first end of the radiator 202 and the first pump body 201 and connects the third connecting pipe 2032 and the first pump body 201.

[0047] The above settings enable free switching of the intercooler circulation loop 200 under different ambient temperature conditions, offering advantages such as simple structure and convenient operation. The third valve body 2031 is a three-way valve, including a seventh valve port, an eighth valve port, and a ninth valve port. The seventh valve port is connected to the pipeline between the second valve body 42 and the third valve body 2031; the eighth valve port is connected to the pipeline near the radiator 202; and the ninth valve port is connected to the third connecting pipe 2032. For example... Figure 4 As shown, the seventh and eighth valve ports of the control third valve body 2031 are connected, and the ninth valve port is closed, so that the second switching structure 203 is in the third working state. At this time, the coolant flows through the intercooler 20 and then through the radiator 202 to complete the heat exchange with the outside air. Then it flows through the third valve body 2031 and the second valve body 42 and flows into the first pump body 201, realizing continuous cooling of the gas in the engine intake pipe 100. Figure 5 As shown, the seventh and eighth valve ports of the control third valve body 2031 are connected, and the ninth valve port is closed, so that the second switching structure 203 is in the third working state. At this time, the coolant flows through the intercooler 20, then through the radiator 202, the third valve body 2031, the first connecting pipe 43, and the first valve body 41, and enters the battery heat exchange circulation loop 300. After that, it flows through the second connecting pipe 44 and the second valve body 42 into the first pump body 201, thereby continuously cooling the gas in the engine intake pipe 100. Figure 6 As shown, the seventh and ninth valve ports of the control third valve body 2031 are connected and the eighth valve port is closed, so that the second switching structure 203 is in the fourth working state. At this time, the coolant flows through the intercooler 20 and then directly through the third connecting pipe 2032, the third valve body 2031, the first connecting pipe 43, and the first valve body 41. After entering the battery heat exchange circulation loop 300, it flows through the second connecting pipe 44 and the second valve body 42 into the first pump body 201, so as to continuously cool the gas in the engine intake pipe 100.

[0048] Specifically, the thermal management system can control the working state of the first switching structure 40 and the second switching structure 203 according to the ambient temperature and the battery temperature, so as to meet the different cooling requirements of the gas in the engine intake pipe 100.

[0049] Specifically, "the first end of radiator 202" refers to the end where coolant flows into radiator 202, and "the second end of radiator 202" refers to the end where coolant flows out of radiator 202.

[0050] like Figures 1 to 9 As shown, the thermal management system also includes a refrigeration circuit 400, on which a battery heat exchanger 50 is installed. The battery heat exchanger 50 is also installed on a battery heat exchange circulation loop 300, through which the battery heat exchange circulation loop 300 exchanges heat with the refrigeration circuit 400. The refrigeration circuit 400 can cool the coolant in the battery heat exchange circulation loop 300 through the battery heat exchanger 50, thereby achieving cooling of the battery 30 in the working state.

[0051] like Figure 3 As shown, when the ambient temperature is too high and the intercooler circulation loop 200 is insufficient to cool the gas in the engine intake pipe 100, the first switching structure 40 is controlled to be in the second working state, so that the battery heat exchange circulation loop 300 and the intercooler circulation loop 200 are connected in series. At this time, the coolant in the connected pipe passes through the second pump body 301, battery heat exchanger 50, battery 30, second connecting pipe 44, second valve body 42, first pump body 201, intercooler 20, radiator 202, first connecting pipe 43 and first valve body 41 to cool the gas in the engine intake pipe 100. When the hybrid vehicle is only driven by the engine 10, in order to better cool the gas in the engine intake pipe 100, the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 can also be connected in series and cooled by the refrigeration loop 400. In other words, the cooling circuit 400 can cool the gas in the engine intake pipe 100 when the battery heat exchange circulation circuit 300 and the intercooler circulation circuit 200 are connected in series, thereby improving the working efficiency and power performance of the engine 10.

[0052] like Figure 6 As shown, when the temperature of the outside air is higher than the temperature after the coolant exchanges heat with the gas in the engine intake pipe 100, the second switching structure 203 can be put into the fourth working state, so that the coolant flows directly from the intercooler 20 through the third connecting pipe 2032 to the third valve body 2031 in the intercooler circulation loop 200, that is, the coolant does not flow through the radiator 202, so as to prevent the outside air from affecting the cooling effect.

[0053] Specifically, in one embodiment, such as Figures 1 to 3As shown, the first switching structure 40 includes a first valve body 41, a second valve body 42, a first connecting pipe 43, and a second connecting pipe 44. The first valve body 41 and the second valve body 42 are three-way valves. The first valve body 41 includes a first valve port, a second valve port, and a third valve port. The first valve port is connected to a pipe near the second pump body 301, the second valve port is connected to a pipe between the second connecting pipe 44 and the first valve body 41, and the third valve port is connected to the first connecting pipe 43. The second valve body 42 includes a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port is connected to a pipe near the first pump body 201, the fifth valve port is connected to a pipe between the second connecting pipe 44 and the second valve body 42, and the sixth valve port is connected to the second connecting pipe 44. Figure 1 As shown, the first valve port and the second valve port of the first valve body 41 are connected, and the third valve port is closed. The fourth and fifth valve ports of the second valve body are connected, and the sixth valve port is closed, putting the first switching structure 40 in a first working state. At this time, the battery heat exchange circulation loop 300 and the intercooler circulation loop 200 run in parallel. The coolant in the intercooler circulation loop 200 passes sequentially through the first pump body 201, the intercooler 20, the radiator 202, and the second valve body 42. The coolant in the battery heat exchange circulation loop 300 passes sequentially through the second pump body 301, the battery heat exchanger 50, the battery 30, and the first valve body 41. Figure 2 As shown, the first valve port and the third valve port of the first valve body 41 are connected, and the second valve port is closed. Furthermore, the fourth valve port and the sixth valve port of the second valve body are connected, and the fifth valve port is closed, placing the first switching structure 40 in the second working state. At this time, the battery heat exchanger circulation loop 300 and the intercooler circulation loop 200 are connected in series. The coolant in the series loop flows sequentially through the second pump body 301, the battery heat exchanger 50, the battery 30, the second connecting pipe 44, the second valve body 42, the first pump body 201, the intercooler 20, the radiator 202, the first connecting pipe 43, and the first valve body 41. Figure 3 As shown, while the first switching structure 40 is in the second working state, the cooling circuit 400 cools the coolant in the battery heat exchange circulation circuit 300 and the intercooler circulation circuit 200 connected in series through the battery heat exchanger 50.

[0054] Specifically, in one embodiment, such as Figures 4 to 6 As shown, based on the above embodiment, a second switching structure 203 is provided on the intercooler circulation loop 200 to reduce the influence of the external ambient temperature on the cooling effect. The specific cooling process has been described in the above text and will not be repeated here.

[0055] Specifically, in one embodiment, such as Figure 7 and Figure 8As shown, the first switching structure 40 can be replaced with a seventh valve body 47, which is a four-way valve. The function of the seventh valve body 47 is the same as the combination of the first valve body 41, the second valve body 42, the first connecting pipe 43 and the second connecting pipe 44. The specific cooling process will not be described in detail.

[0056] like Figures 1 to 9 As shown, the refrigeration circuit 400 includes a refrigeration branch 410, a passenger compartment heat exchange branch 420, and a battery heat exchange branch 430. The two ends of the passenger compartment heat exchange branch 420 are connected to the two ends of the refrigeration branch 410, respectively. The battery heat exchange branch 430 is connected in parallel with the passenger compartment heat exchange branch 420. The coolant in the refrigeration branch 410 can flow through the passenger compartment heat exchange branch 420 and the battery heat exchange branch 430 respectively to cool the passenger compartment and the battery 30.

[0057] Specifically, the refrigeration branch 410 includes a condenser 411 and a compressor 412. The low-pressure gaseous refrigerant, after exchanging heat with the crew compartment and / or battery heat exchange loop 300, is compressed into a high-temperature and high-pressure gaseous refrigerant by the compressor 412. The high-temperature and high-pressure gaseous refrigerant is cooled in the condenser 411 and transformed into a low-temperature liquid refrigerant. Then, the low-temperature liquid refrigerant flows into the crew compartment heat exchange branch 420 and / or battery heat exchange branch 430 and becomes a low-pressure gaseous refrigerant after heat exchange, and the cycle continues.

[0058] like Figures 1 to 9 As shown, the crew compartment heat exchange branch 420 is equipped with an evaporator 421 and a fifth valve body 422. The fifth valve body 422 can block or connect the crew compartment heat exchange branch 420. When the crew compartment needs cooling, the fifth valve body 422 can be controlled to connect the crew compartment heat exchange branch 420, so that the coolant in the cooling branch 410 flows through the fifth valve body 422 and the evaporator 421, and exchanges heat with the crew compartment through the evaporator 421; when the crew compartment does not need cooling, the fifth valve body 422 can be controlled to block the crew compartment heat exchange branch 420.

[0059] like Figures 1 to 9 As shown, the battery heat exchange branch 430 is equipped with a battery heat exchanger 50 and a sixth valve body 431. The sixth valve body 431 can block or connect the battery heat exchange branch 430. When the battery 30 or the engine intake manifold 100 requires further cooling, the sixth valve body 431 can be controlled to connect the battery heat exchange branch 430, allowing the coolant in the cooling branch 410 to flow through the sixth valve body 431 and the battery heat exchanger 50, and cool the coolant in the battery heat exchange circulation loop 300 through the battery heat exchanger 50, thereby cooling the battery 30. When neither the battery 30 nor the engine intake manifold 100 requires further cooling, the sixth valve body 431 can be controlled to block the battery heat exchange branch 430, preventing the cooling branch 410 from connecting to the battery heat exchange branch 430.

[0060] Specifically, when cooling the passenger compartment is required to cool the battery 30 or the engine intake pipe 100, the fifth valve body 422 can be controlled to connect to the passenger compartment heat exchange branch 420 and the sixth valve body 431 can be controlled to connect to the battery heat exchange branch 430. The distribution of coolant flow through the passenger compartment heat exchange branch 420 and the battery heat exchange branch 430 can be achieved by controlling the opening degree of the fifth valve body 422 and the sixth valve body 431 respectively.

[0061] like Figures 1 to 9 As shown, the battery heat exchange circulation loop 300 includes a second pump 301 and a heater 302. The second pump 301 pressurizes the coolant in the pipeline to promote the flow of coolant in the battery heat exchange circulation loop 300. In winter, when the ambient temperature is too low, the battery 30 needs to be heated. The first switching structure 40 can be controlled to make the intercooler circulation loop 200 run in parallel with the battery heat exchange circulation loop 300, and the heater 302 can be controlled to heat the coolant in the battery heat exchange circulation loop 300, so as to keep the battery 30 at an appropriate temperature and not affect the operation of the hybrid vehicle in low-temperature conditions.

[0062] like Figure 9 As shown, in one embodiment, the battery heat exchange circulation loop 300 includes a second pump body 301, and the battery 30 is located within the battery heat exchange circulation loop 300; the first switching structure 40 includes a fourth valve body 45 and a fourth connecting pipe 46. The fourth valve body 45 is disposed between the first end of the radiator 202 and the first pump body 201, and between the second pump body 301 and the battery 30. The first end of the fourth connecting pipe 46 is connected to the fourth valve body 45, and the second end of the fourth connecting pipe 46 is connected between the second end of the radiator 202 and the intercooler 20; when the first switching structure 40 is in a first working state, the fourth valve body 45 connects the second pump body 301 and the battery 30, connects the first pump body 201 and the radiator 202, and blocks the battery. The first switching structure 40 connects the battery 30 and the first pump body 201, blocks the second pump body 301 and the radiator 202, and blocks the fourth connecting pipe 46. When the first switching structure 40 is in the second working state, the fourth valve body 45 connects the battery 30 and the first pump body 201, connects the second pump body 301 and the radiator 202, blocks the second pump body 301 and the battery 30, blocks the first pump body 201 and the radiator 202, and blocks the fourth connecting pipe 46. The first switching structure 40 also includes a fifth working state. When the first switching structure 40 is in the fifth working state, the fourth valve body 45 connects the battery 30 and the first pump body 201, connects the fourth connecting pipe 46 and the second pump body 301, blocks the battery 30 and the second pump body 301, and blocks the radiator 202.

[0063] The fourth valve body 45 is a five-way valve, which further simplifies the structure of the thermal management system and has the advantages of simple structure and convenient operation. The fourth valve body 45 has a tenth valve port, an eleventh valve port, a twelfth valve port, a thirteenth valve port, and a fourteenth valve port. The tenth valve port is connected to the pipeline near the battery 30, the eleventh valve port is connected to the pipeline near the first pump body 201, the twelfth valve port is connected to the pipeline near the radiator 202, the thirteenth valve port is connected to the pipeline near the second pump body 301, and the fourteenth valve port is connected to the fourth connecting pipe 46. When the first switching structure 40 is in the first working state, the tenth valve port of the fourth valve body 45 is connected to the thirteenth valve port, the eleventh valve port is connected to the twelfth valve port, and the fourteenth valve port is closed. At this time, the intercooler circulation loop 200 and the battery heat exchange circulation loop 300 run in parallel. The coolant in the intercooler circulation loop 200 passes sequentially through the first pump body 201, the intercooler 20, the radiator 202, and the fourth valve body 45, and the coolant in the battery heat exchange circulation loop 300 passes sequentially through the second pump body 301, the battery 30, and the fourth valve body 45. When the first switching structure 40 is in the second working state, the tenth valve port of the fourth valve body 45 is connected to the eleventh valve port, the twelfth valve port is connected to the thirteenth valve port, and the fourteenth valve port is closed. When the circuit is closed, the intercooler circulation loop 200 is connected in series with the battery heat exchange circulation loop 300. The coolant in the connected pipes passes through the second pump body 301, the battery 30, the first pump body 201, the intercooler 20, and the radiator 202 in sequence. When the first switching structure 40 is in the fifth working state, the tenth valve port of the fourth valve body 45 is connected to the eleventh valve port, the thirteenth valve port is connected to the fourteenth valve port, and the twelfth valve port is closed. At this time, the intercooler circulation loop 200 is connected in series with the battery heat exchange circulation loop 300, and the radiator 202 is not connected to the intercooler circulation loop 200. The coolant in the connected pipes passes through the second pump body 301, the battery 30, the first pump body 201, the intercooler 20, and the fourth connecting pipe 46 in sequence.

[0064] Specifically, "the first end of radiator 202" refers to the end where coolant flows into radiator 202, and "the second end of radiator 202" refers to the end where coolant flows out of radiator 202. "The first end of the fourth connecting pipe 46" refers to the end where coolant flows out of the fourth connecting pipe 46, and "the second end of the fourth connecting pipe 46" refers to the end where coolant flows into the fourth connecting pipe 46.

[0065] This application also provides a hybrid vehicle. An embodiment of the hybrid vehicle includes a thermal management system, wherein the thermal management system is the aforementioned thermal management system. The aforementioned thermal management system effectively solves the problem that the cooling methods for engine intake air in related art hybrid vehicles cannot meet the cooling requirements of hybrid vehicles operating under high-temperature conditions in summer. The hybrid vehicle with the aforementioned thermal management system also has the aforementioned advantages.

[0066] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0067] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0068] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0069] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A thermal management system for hybrid vehicles, characterized in that, The thermal management system includes: An engine intake manifold (100) is connected to the engine (10) and used to supply gas to the engine (10); An intercooler (20) is installed on the engine intake manifold (100); Intercooler circulation loop (200), wherein the intercooler (20) is also provided on the intercooler circulation loop (200), and the intercooler circulation loop (200) exchanges heat with the gas in the engine intake pipe (100) through the intercooler (20); A battery heat exchange circulation loop (300) is used for heat exchange with the battery (30); The first switching structure (40) is disposed between the intercooler circulation loop (200) and the battery heat exchange circulation loop (300) and has a first working state and a second working state. When the first switching structure (40) is in the first working state, the intercooler circulation loop (200) and the battery heat exchange circulation loop (300) are independent of each other. When the first switching structure (40) is in the second working state, the intercooler circulation loop (200) and the battery heat exchange circulation loop (300) are connected in series.

2. The thermal management system according to claim 1, characterized in that, The first switching structure (40) includes a first valve body (41) disposed in the battery heat exchange circulation loop (300), a second valve body (42) disposed in the intercooler circulation loop (200), a first connecting pipe (43) connecting the first valve body (41) and the intercooler circulation loop (200), and a second connecting pipe (44) connecting the second valve body (42) and the battery heat exchange circulation loop (300), wherein, When the first switching structure (40) is in the first working state, the first valve body (41) connects the battery heat exchange circulation loop (300) and blocks the battery heat exchange circulation loop (300) and the first connecting pipe (43), and the second valve body (42) connects the intercooler circulation loop (200) and blocks the intercooler circulation loop (200) and the second connecting pipe (44); When the first switching structure (40) is in the second working state, the first valve body (41) blocks the battery heat exchange circulation loop (300) and connects the battery heat exchange circulation loop (300) and the first connecting pipe (43), and the second valve body (42) blocks the intercooler circulation loop (200) and connects the intercooler circulation loop (200) and the second connecting pipe (44).

3. The thermal management system according to claim 1, characterized in that, The intercooler circulation loop (200) includes a first pump body (201) and a radiator (202).

4. The thermal management system according to claim 3, characterized in that, The intercooler circulation loop (200) further includes a second switching structure (203), which has a third working state and a fourth working state. When the second switching structure (203) is in the third working state, the two ends of the radiator (202) are connected to the first pump body (201) and the intercooler (20) respectively. When the second switching structure (203) is in the fourth working state, the second switching structure (203) blocks the radiator (202) from the first pump body (201) or blocks the radiator (202) from the intercooler (20), and makes the intercooler (20) and the first pump body (201) directly connected through the second switching structure (203).

5. The thermal management system according to claim 4, characterized in that, The second switching structure (203) includes a third valve body (2031) disposed between the first end of the radiator (202) and the first pump body (201) and a third connecting pipe (2032) connecting the second end of the radiator (202) and the third valve body (2031), wherein, When the second switching structure (203) is in the third working state, the third valve body (2031) connects the first end of the radiator (202) and the first pump body (201) and blocks the third connecting pipe (2032); When the second switching structure (203) is in the fourth working state, the third valve body (2031) blocks the first end of the radiator (202) and the first pump body (201) and connects the third connecting pipe (2032) and the first pump body (201).

6. The thermal management system according to claim 3, characterized in that, The battery heat exchange circulation loop (300) includes a second pump body (301), and the battery (30) is located within the battery heat exchange circulation loop (300); The first switching structure (40) includes a fourth valve body (45) and a fourth connecting pipe (46). The fourth valve body (45) is disposed between the first end of the radiator (202) and the first pump body (201) and between the second pump body (301) and the battery (30). The first end of the fourth connecting pipe (46) is connected to the fourth valve body (45), and the second end of the fourth connecting pipe (46) is connected between the second end of the radiator (202) and the intercooler (20). When the first switching structure (40) is in the first working state, the fourth valve body (45) connects the second pump body (301) and the battery (30), connects the first pump body (201) and the radiator (202), blocks the battery (30) and the first pump body (201), blocks the second pump body (301) and the radiator (202), and blocks the fourth connecting pipe (46); When the first switching structure (40) is in the second working state, the fourth valve body (45) connects the battery (30) and the first pump body (201), connects the second pump body (301) and the radiator (202), blocks the second pump body (301) and the battery (30), blocks the first pump body (201) and the radiator (202), and blocks the fourth connecting pipe (46); The first switching structure (40) also has a fifth working state. When the first switching structure (40) is in the fifth working state, the fourth valve body (45) connects the battery (30) and the first pump body (201), connects the fourth connecting pipe (46) and the second pump body (301), blocks the battery (30) and the second pump body (301), and blocks the radiator (202).

7. The thermal management system according to any one of claims 1 to 5, characterized in that, The thermal management system further includes a refrigeration circuit (400), on which a battery heat exchanger (50) is provided. The battery heat exchanger (50) is also provided on the battery heat exchange circulation circuit (300), and the battery heat exchange circulation circuit (300) exchanges heat with the refrigeration circuit (400) through the battery heat exchanger (50).

8. The thermal management system according to claim 7, characterized in that, The refrigeration circuit (400) includes a refrigeration branch (410), a crew compartment heat exchange branch (420), and a battery heat exchange branch (430). The two ends of the crew compartment heat exchange branch (420) are respectively connected to the two ends of the refrigeration branch (410), and the battery heat exchange branch (430) is arranged in parallel with the crew compartment heat exchange branch (420).

9. The thermal management system according to claim 8, characterized in that, An evaporator (421) and a fifth valve body (422) are provided on the crew compartment heat exchange branch (420). The fifth valve body (422) can block or connect the crew compartment heat exchange branch (420); and / or, The battery heat exchange branch (430) is provided with the battery heat exchanger (50) and the sixth valve body (431), and the sixth valve body (431) can block or connect the battery heat exchange branch (430).

10. The thermal management system according to claim 7, characterized in that, The battery heat exchange circulation loop (300) includes a second pump body (301) and a heater (302).

11. A hybrid vehicle, comprising a thermal management system, characterized in that, The thermal management system is the thermal management system according to any one of claims 1 to 10.

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