Extended-range vehicle thermal management system and vehicle

Abstract

The utility model relates to an extended-range vehicle thermal management system and an automobile. An engine side exhaust loop comprises a combustion chamber and a heat exchanger, and the heat exchanger communicates with the combustion chamber through an exhaust manifold; the heat pump air conditioner loop comprises a gas-liquid separator, a compressor, a reversing valve assembly, a built-in condensation evaporator, a power battery pack and an external condensation evaporator. The gas-liquid separator is communicated with the compressor through a first pipeline, and the heat exchanger is communicated with the first pipeline; the reversing valve assembly comprises a first reversing valve, and four communication ports of the first reversing valve communicate with the compressor, the built-in condensation evaporator, the external condensation evaporator and the gas-liquid separator correspondingly. The reversing valve assembly further comprises a second reversing valve, and four communication ports of the second reversing valve are communicated with the built-in condensation evaporator, the inlet end of the power battery pack, the outlet end of the power battery pack and the external condensation evaporator respectively. Waste heat of the range extender can be utilized, the heat conversion rate is increased, the low-temperature cruising ability of the automobile is improved, and the cruising mileage anxiety of customers is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat management of extended-range electric vehicles, and particularly relates to a heat management system of an extended-range electric vehicle and a car. BACKGROUND

[0002] In the modern automobile industry, as a kind of hybrid vehicle combining traditional internal combustion engine and electric motor, the extended-range electric vehicle (EREV) has gradually become the focus of the market. The EREV provides driving force through the built-in pure electric motor, and internally installs a small internal combustion engine (also known as a range extender) for generating power for the power battery, so as to prolong the discharge capacity of the power battery and improve the cruising range of the vehicle.

[0003] The existing extended-range electric vehicle rarely adopts a heat management architecture with a heat pump function. Generally, the waste heat of the range extender after starting is utilized in the heat management system for waste heat recovery by the warm air cooling liquid circuit. However, when the vehicle is in the pure electric mode, there is no waste heat of the range extender to be utilized, and the heat of the heat management system of the vehicle can only be heated within the entire temperature threshold. In this working condition, the heat conversion rate is low, the energy efficiency is low, the low-temperature cruising ability of the car is poor, and the cruising range anxiety of the customer is increased. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a heat management system of an extended-range electric vehicle and a car. The heat management system of the extended-range electric vehicle can utilize the waste heat of the range extender, improve the heat conversion rate, improve the energy efficiency, improve the low-temperature cruising ability of the car, and reduce the cruising range anxiety of the customer.

[0005] To this end, in a first aspect, the present application provides a heat management system of an extended-range electric vehicle, comprising: an engine-side exhaust gas circuit, comprising a combustion chamber and a heat exchanger, the heat exchanger being in communication with the combustion chamber through an exhaust manifold; a heat pump air conditioning circuit, comprising a gas-liquid separator, a compressor, a reversing valve assembly, an internal condenser-evaporator, a power battery pack, and an external condenser-evaporator; the gas-liquid separator is in communication with the compressor through a first pipeline, the heat exchanger is in communication with the first pipeline to exchange heat between the exhaust manifold and the first pipeline; the reversing valve assembly comprises a first reversing valve, the first reversing valve is provided with four communication ports, the four communication ports of the first reversing valve are respectively in communication with the compressor, the internal condenser-evaporator, the external condenser-evaporator, and the gas-liquid separator to adjust the flow direction of the fluid in the first reversing valve; the reversing valve assembly further comprises a second reversing valve, the second reversing valve is provided with four communication ports, the four communication ports of the second reversing valve are respectively in communication with the internal condenser-evaporator, an inlet end of the power battery pack, an outlet end of the power battery pack, and the external condenser-evaporator to adjust the flow direction of the fluid in the second reversing valve.

[0006] In one of the embodiments, the first pipeline is further connected with a first three-way valve, an outlet end of the gas-liquid separator is communicated with one connection port of the first three-way valve, an inlet end of the heat exchanger is communicated with one communication port of the first three-way valve, and an inlet end of the compressor is communicated with one connection port of the first three-way valve.

[0007] In one of the embodiments, the first pipeline is further connected with a heater, and the heater is located between the compressor and the first three-way valve.

[0008] In one of the embodiments, the system further comprises an electronic expansion valve assembly, which comprises: a first electronic expansion valve located between the built-in condenser-evaporator and the second reversing valve; a second electronic expansion valve located between the power battery pack and the second reversing valve; and a third electronic expansion valve located between the second reversing valve and the external condenser-evaporator.

[0009] In one of the embodiments, a second three-way valve is further arranged between the exhaust manifold and the heat exchanger, an outlet end of the exhaust manifold is communicated with one communication port of the second three-way valve, an inlet end of the heat exchanger is communicated with one communication port of the second three-way valve, and an outlet end of the heat exchanger is communicated with one communication port of the second three-way valve.

[0010] In one of the embodiments, the exhaust manifold is further communicated with a first turbocharger, a three-way catalyst and an exhaust pipe in sequence.

[0011] In one of the embodiments, the outlet end of the heat exchanger is used to communicate with the three-way catalyst.

[0012] In one of the embodiments, the combustion chamber is further communicated with an intake manifold, an intercooler, a second turbocharger and an intake pipe in sequence.

[0013] In one of the embodiments, a filter is further included, and the filter is connected with the intake pipe.

[0014] In the second aspect, the embodiments of the present application provide an automobile comprising the range-extending vehicle thermal management system according to any one of the above.

[0015] According to the range extended vehicle thermal management system and the automobile provided by the embodiment of the application, the range extended vehicle thermal management system comprises an engine exhaust loop and a heat pump air conditioning loop; the engine side exhaust loop comprises a combustion chamber and a heat exchanger, and the heat exchanger is communicated with the combustion chamber through an exhaust manifold; the heat pump air conditioning loop comprises a gas-liquid separator, a compressor, a reversing valve assembly, an internal condensation evaporator, a power battery pack and an external condensation evaporator; the gas-liquid separator is communicated with the compressor through a first pipeline, and the heat exchanger is communicated with the first pipeline to exchange heat between the exhaust manifold and the first pipeline; the reversing valve assembly comprises a first reversing valve, the first reversing valve is provided with four communication ports, and the four communication ports of the first reversing valve are respectively communicated with the compressor, the internal condensation evaporator, the external condensation evaporator and the gas-liquid separator to adjust the flow direction of the fluid in the first reversing valve; the reversing valve assembly further comprises a second reversing valve, the second reversing valve is provided with four communication ports, and the four communication ports of the second reversing valve are respectively communicated with the internal condensation evaporator, an inlet end of the power battery pack, an outlet end of the power battery pack and the external condensation evaporator to adjust the flow direction of the fluid in the second reversing valve. According to the arrangement of the engine side exhaust loop and the waste heat pump air conditioning loop, the waste heat of the engine side exhaust loop can be reused, the low-temperature endurance capability of the automobile can be improved, the endurance anxiety of the customer can be reduced, and the cost can be reduced. Meanwhile, according to the arrangement of the first reversing valve and the second reversing valve, the complexity of the arrangement of the application can be reduced, most of the parts of the cooling liquid loop can be reduced, the cost advantage is obvious, the arrangement space is small, more storage space can be brought to the vehicle. In addition, the engine side exhaust loop adopts the mode that the exhaust gas is directly exchanged with the fluid in the waste heat pump air conditioning loop, without other heat exchange medium, the temperature difference of the heat exchange medium is improved, and the heat transfer efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure schematic diagram of the range extended vehicle thermal management system provided by the application in the first working mode and the third working mode is shown;

[0017] Figure 2 The structure schematic diagram of the range extended vehicle thermal management system provided by the application in the second working mode is shown.

[0018] Marked for explanation:

[0019] 1, engine side exhaust circuit; 11, combustion chamber; 111, intake manifold; 112, intercooler; 113, second turbocharger; 114, intake pipe; 115, filter; 12, heat exchanger; 121, second pipeline; 13, exhaust manifold; 131, first turbocharger; 132, three-way catalyst; 133, exhaust pipe; 14, second three-way valve; 2, heat pump air conditioning circuit; 21, gas-liquid separator; 211, first pipeline; 212, first three-way valve; 22, compressor; 231, first reversing valve; 232, second reversing valve; 24, built-in condenser-evaporator; 25, power battery pack; 26, external condenser-evaporator; 27, heater; 281, first electronic expansion valve; 282, second electronic expansion valve; 283, third electronic expansion valve. DETAILED DESCRIPTION

[0020] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0021] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concepts of the present application, and only show the components related to the present application in the diagrams, not drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the component layout pattern can also be more complex.

[0022] The structures, proportions, sizes, etc. shown in the diagrams attached to the present specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and are not used to limit the limiting conditions that the present application can be implemented. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the functions and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0023] The orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "intermediate", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc. in the present specification are based on the orientations or positional relationships shown in the drawings, and are only used to simplify the description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for description purposes, and cannot be understood as indicating or implying relative importance.

[0024] The existing range-extending vehicle rarely uses a heat management architecture with a heat pump function. Generally, the warm air cooling liquid circuit utilizes the waste heat after the start of the range extender and incorporates the heat management system for waste heat recovery. However, when the vehicle is in pure electric mode, there is no waste heat utilization of the range extender, and the heat of the vehicle's heat management system is within the entire temperature threshold, which can only use PTC (Positive Temperature Coefficient) heating. In this working condition, the heat conversion rate is low, the energy efficiency is low, the low-temperature endurance capability of the pure electric operation mode is poor, and the customer's endurance mileage anxiety is increased.

[0025] To solve the above problems, with reference to Figure 1 and Figure 2 , Figure 1 show the structure schematic diagram of the range-extending vehicle heat management system provided by the present application in the first working mode and the third working mode, Figure 2 show the structure schematic diagram of the range-extending vehicle heat management system provided by the present application in the second working mode.

[0026] The present application provides a range-extending vehicle heat management system, comprising an engine-side exhaust gas circuit 1 and a heat pump air conditioning circuit 2. The engine-side exhaust gas circuit 1 comprises a combustion chamber 11 and a heat exchanger 12, and the heat exchanger 12 is in communication with the combustion chamber 11 through an exhaust manifold 13. The heat pump air conditioning circuit 2 comprises a gas-liquid separator 21, a compressor 22, a reversing valve assembly, an internal condenser evaporator 24, a power battery pack 25, and an external condenser evaporator 26. The gas-liquid separator 21 is in communication with the compressor 22 through a first pipeline 211, and the heat exchanger 12 is in communication with the first pipeline 211 to exchange heat between the exhaust manifold 13 and the first pipeline 211. The reversing valve assembly comprises a first reversing valve 231, which is provided with four communication ports. The four communication ports of the first reversing valve 231 are respectively in communication with the compressor 22, the internal condenser evaporator 24, the external condenser evaporator 26, and the gas-liquid separator 21 to adjust the flow direction of the fluid in the first reversing valve 231. The reversing valve assembly further comprises a second reversing valve 232, which is provided with four communication ports. The four communication ports of the second reversing valve 232 are respectively in communication with the internal condenser evaporator 24, the inlet end of the power battery pack 25, the outlet end of the power battery pack 25, and the external condenser evaporator 26 to adjust the flow direction of the fluid in the second reversing valve 232.

[0027] It should be understood that the fluids flowing in the engine-side exhaust gas circuit 1 and the heat pump air conditioning circuit 2 are both fluids. In one example, the fluid flowing in the engine-side exhaust gas circuit 1 is a gas, and the fluid flowing in the heat pump air conditioning circuit 2 is a liquid and / or a gas.

[0028] The engine-side exhaust gas loop 1 comprises a combustion chamber 11, an exhaust manifold 13, and a heat exchanger 12. The exhaust manifold 13 is in communication with the combustion chamber 11, and the gas after combustion in the combustion chamber 11 is discharged into the exhaust manifold 13. The exhaust manifold 13 is in communication with the heat exchanger 12, and the gas in the exhaust manifold 13 can enter the heat exchanger 12 for heat exchange. The heat exchanger 12 can be a plate heat exchanger.

[0029] The heat pump air conditioning loop 2 comprises a gas-liquid separator 21 and a compressor 22. The compressor 22 is an air conditioning compressor. The gas-liquid separator 21 is connected to the compressor 22 through a first pipeline 211, so that the fluid can flow between the gas-liquid separator 21 and the compressor 22 through the first pipeline 211. The first pipeline 211 is also in communication with the heat exchanger 12 through a second pipeline 121, i.e., the fluid can flow between the heat exchanger 12 and the first pipeline 211 through the second pipeline 121. The heat exchanger 12 can exchange heat between the gas in the exhaust manifold 13 and the fluid in the first pipeline 211, thereby heating the fluid in the first pipeline 211.

[0030] The reversing valve assembly comprises a first reversing valve 231 provided with four communication ports. The four communication ports of the first reversing valve 231 are in communication with the compressor 22, the built-in condenser-evaporator 24, the external condenser-evaporator 26, and the gas-liquid separator 21, respectively. The fluid can flow from the compressor 22 into the built-in condenser-evaporator 24, and flow from the external condenser-evaporator 26 into the gas-liquid separator 21; or the fluid can flow from the compressor 22 into the external condenser-evaporator 26, and flow from the built-in condenser-evaporator 24 into the gas-liquid separator 21, i.e., the flow direction of the fluid in the first reversing valve 231 can be adjusted.

[0031] The reversing valve assembly further comprises a second reversing valve 232. The four communication ports of the second reversing valve 232 are in communication with the built-in condenser-evaporator 24, the inlet end of the power battery pack 25, the outlet end of the power battery pack 25, and the external condenser-evaporator 26, respectively. The fluid can flow from the built-in condenser-evaporator 24 into the inlet end of the power battery pack 25, and flow from the outlet end of the power battery pack 25 into the external condenser-evaporator 26; or the fluid can flow from the compressor 22 into the external condenser-evaporator 26, and flow from the external condenser-evaporator 26 into the inlet end of the power battery pack 25, and flow from the outlet end of the power battery pack 25 into the built-in condenser-evaporator 24, i.e., the flow direction of the fluid in the second reversing valve 232 can be adjusted.

[0032] Reference Figure 1, when working, the application has multiple working modes. The first working mode is the exhaust heat recovery mode. The gas after combustion in the combustion chamber 11 is discharged into the exhaust manifold 13. The fluid in the first pipeline 211 flows into the second pipeline 121. The fluid in the exhaust manifold 13 exchanges heat with the fluid in the second pipeline 121 through the heat exchanger 12, so as to heat the fluid in the second pipeline 121. The heated fluid flows into the compressor 22 through the first pipeline 211. The fluid flows into the built-in condenser evaporator 24 from the compressor 22 through the first reversing valve 231. The fluid flows into the power battery pack 25 from the built-in condenser evaporator 24 through the second reversing valve 232. The fluid flows into the external condenser evaporator 26 from the power battery pack 25 through the second reversing valve 232. The fluid flows into the gas-liquid separator 21 from the external condenser evaporator 26 through the first reversing valve 231. Finally, the fluid flows into the first pipeline 211 from the gas-liquid separator 21 for recycling.

[0033] Referring to Figure 2 The second working mode is the refrigeration mode. The fluid flows into the external condenser evaporator 26 from the compressor 22 through the first reversing valve 231. The fluid flows into the power battery pack 25 from the external condenser evaporator 26 through the second reversing valve 232. The fluid flows into the built-in condenser evaporator 24 from the power battery pack 25 through the second reversing valve 232. The built-in condenser evaporator 24 flows into the gas-liquid separator 21 through the first reversing valve 231. Finally, the fluid flows into the compressor 22 from the gas-liquid separator 21 through the first pipeline 211 for recycling.

[0034] The application can recycle the waste heat of the engine side exhaust circuit 1 through the setting of the engine side exhaust circuit 1 and the waste heat pump air conditioning circuit 2, can improve the low-temperature endurance of the automobile, reduce the endurance anxiety of the customer, and also reduce the cost. At the same time, the application can reduce the complexity of the arrangement of the application through the setting of the first reversing valve 231 and the second reversing valve 232, reduce most of the parts of the cooling liquid circuit, has obvious cost advantage, needs small arrangement space, and can bring more storage space to the vehicle. The engine side exhaust circuit 1 adopts the mode that the exhaust gas directly exchanges heat with the fluid in the waste heat pump air conditioning circuit 2, does not need other heat exchange medium, improves the temperature difference of the heat exchange medium, and thus improves the heat transfer efficiency.

[0035] In some optional embodiments, the first pipeline 211 is further connected with a first three-way valve 212, the outlet end of the gas-liquid separator 21 is in communication with a connection port of the first three-way valve 212, the inlet end of the heat exchanger 12 is in communication with a communication port of the first three-way valve 212, and the inlet end of the compressor 22 is in communication with a connection port of the first three-way valve 212. The first three-way valve 212 is connected with the heat exchanger 12 through a second pipeline 121. The application can control the amount of fluid entering the second pipeline 121 through the first three-way valve 212, so as to control the heat exchange between the fluid in the waste heat pump air conditioning circuit 2 and the fluid in the engine side exhaust circuit 1, accurately control the utilization of waste heat, and ensure that the temperature of the fluid in the waste heat pump air conditioning circuit 2 is within a normal range, thereby avoiding affecting the automobile.

[0036] With reference to Figure 1 In some optional embodiments, the first pipeline 211 is further connected with a heater 27, and the heater 27 is located between the compressor 22 and the first three-way valve 212. The heater 27 can be a PTC (Positive Temperature Coefficient) heater, that is, the fluid can be heated at the heater 27. The application also has a third working mode, which is a heating mode. The fluid is heated by the heater 27 and then flows into the compressor 22 through the first pipeline 211. The fluid flows into the built-in condenser evaporator 24 from the compressor 22 through the first reversing valve 231. The fluid flows into the power battery pack 25 from the built-in condenser evaporator 24 through the second reversing valve 232. The fluid flows into the external condenser evaporator 26 from the power battery pack 25 through the second reversing valve 232. The fluid flows into the gas-liquid separator 21 from the external condenser evaporator 26 through the first reversing valve 231. Finally, the fluid flows into the first pipeline 211 from the gas-liquid separator 21 to circulate and be utilized. In the first working mode, the heater 27 can also further heat the fluid after heat exchange in the heat exchanger 12, so as to ensure that the temperature of the fluid in the waste heat pump air conditioning circuit 2 is within a normal range.

[0037] With reference to Figure 1 and Figure 2 In some optional embodiments, an electronic expansion valve assembly is further included, and the electronic expansion valve assembly includes a first electronic expansion valve 281, a second electronic expansion valve 282, and a third electronic expansion valve 283. The first electronic expansion valve 281 is located between the built-in condenser evaporator 24 and the second reversing valve 232. The second electronic expansion valve 282 is located between the power battery pack 25 and the second reversing valve 232. The third electronic expansion valve 283 is located between the second reversing valve 232 and the external condenser evaporator 26. The first electronic expansion valve 281, the second electronic expansion valve 282, and the third electronic expansion valve 283 can be used to control the flow and open / close state of each passage, so as to ensure the normal flow of the fluid in the heat pump air conditioning circuit 2.

[0038] In some optional embodiments, a second three-way valve 14 is further arranged between the exhaust manifold 13 and the heat exchanger 12, an outlet end of the exhaust manifold 13 is communicated with one communication port of the second three-way valve 14, an inlet end of the heat exchanger 12 is communicated with one communication port of the second three-way valve 14, and an outlet end of the heat exchanger 12 is communicated with one communication port of the second three-way valve 14. The arrangement of the second three-way valve 14 can facilitate the user to adjust the flow of fluid entering the heat exchanger 12, thereby controlling the heat exchange with the fluid in the second pipeline 121, and avoiding excessive heating of the fluid in the second pipeline 121.

[0039] In some optional embodiments, the exhaust manifold 13 further sequentially communicates a first turbocharger 131, a three-way catalyst 132, and an exhaust pipe 133. The first turbocharger 131 increases the pressure and temperature of the fluid in the exhaust manifold 13, and the gas after being pressurized and heated enters the three-way catalyst 132 and reacts with the catalyst in the three-way catalyst 132, thereby reducing harmful substances in the fluid. The fluid after the reaction is discharged into the atmosphere through the exhaust pipe 133.

[0040] In some optional embodiments, the outlet end of the heat exchanger 12 is used to communicate with the three-way catalyst 132. That is, the fluid passing through the heat exchanger 12 enters the three-way catalyst 132 and reacts with the catalyst, thereby reducing harmful substances in the fluid, and the fluid after the reaction is discharged into the atmosphere through the exhaust pipe 133.

[0041] In some optional embodiments, the combustion chamber 11 further sequentially communicates an intake manifold 111, an intercooler 112, a second turbocharger 113, and an intake pipe 114. The combustion chamber 11 includes a cylinder head combustion chamber and a cylinder body. The inlet of the combustion chamber 11 is sequentially connected with the intake manifold 111, the intercooler 112, the second turbocharger 113, and the intake pipe 114. Fluid enters the intake pipe 114 from the atmosphere, then is pressurized by the second turbocharger 113 to enter the intercooler 112 for cooling, and then enters the intake manifold 111, and finally enters the combustion chamber 11 for combustion.

[0042] In some optional embodiments, a filter 115 is further included, which is connected with the intake pipe 114 to filter the fluid entering the intake pipe 114, reduce the entry of dust and other foreign matters into the intake pipe 114, and avoid affecting combustion.

[0043] The application also includes a car, and the car includes the range-extended vehicle thermal management system described in any of the above. The range-extended vehicle thermal management system includes an engine-side exhaust gas circuit 1 and a heat pump air conditioning circuit 2, the engine-side exhaust gas circuit 1 includes a combustion chamber 11 and a heat exchanger 12, the heat exchanger 12 is communicated with the combustion chamber 11 through an exhaust manifold 13; the heat pump air conditioning circuit 2 includes a gas-liquid separator 21, a compressor 22, a reversing valve assembly, an internal condenser evaporator 24, a power battery pack 25 and an external condenser evaporator 26; the gas-liquid separator 21 is communicated with the compressor 22 through a first pipeline 211, and the heat exchanger 12 is communicated with the first pipeline 211 to exchange heat between the exhaust manifold 13 and the first pipeline 211; the reversing valve assembly includes a first reversing valve 231, the first reversing valve 231 is provided with four communication ports, and the four communication ports of the first reversing valve 231 are respectively communicated with the compressor 22, the internal condenser evaporator 24, the external condenser evaporator 26 and the gas-liquid separator 21 to adjust the flow direction of the fluid in the first reversing valve 231; the reversing valve assembly further includes a second reversing valve 232, the second reversing valve 232 is provided with four communication ports, and the four communication ports of the second reversing valve 232 are respectively communicated with the internal condenser evaporator 24, an inlet end of the power battery pack 25, an outlet end of the power battery pack 25 and the external condenser evaporator 26 to adjust the flow direction of the fluid in the second reversing valve 232.

[0044] By arranging the engine-side exhaust gas circuit 1 and the waste heat pump air conditioning circuit 2, the waste heat of the engine-side exhaust gas circuit 1 can be reused, the low-temperature endurance capability of the car can be improved, the customer's endurance mileage anxiety can be reduced, and the cost can be reduced. Meanwhile, by arranging the first reversing valve 231 and the second reversing valve 232, the complexity of the arrangement of the application can be reduced, most of the parts of the cooling liquid circuit can be reduced, the cost advantage is obvious, the demand for arrangement space is small, and more storage space can be brought to the vehicle. Moreover, the engine-side exhaust gas circuit 1 adopts a mode of directly exchanging heat between exhaust gas and fluid in the waste heat pump air conditioning circuit 2, without other heat exchange medium, the temperature difference of the heat exchange medium is improved, and the heat transfer efficiency is improved.

[0045] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the application.

[0046] The above embodiments only express several implementation manners of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A range extended vehicle thermal management system, characterized by, The application relates to an engine-side exhaust gas circuit (1) comprising a combustion chamber (11) and a heat exchanger (12) which is in communication with the combustion chamber (11) via an exhaust manifold (13); a heat pump air conditioning circuit (2) comprising a gas-liquid separator (21), a compressor (22), a reversing valve assembly, an internal condenser-evaporator (24), a power battery pack (25) and an external condenser-evaporator (26); the gas-liquid separator (21) is in communication with the compressor (22) via a first pipeline (211), and the heat exchanger (12) is in communication with the first pipeline (211) to exchange heat between the exhaust manifold (13) and the first pipeline (211); the reversing valve assembly comprises a first reversing valve (231) which is provided with four communication ports, and the four communication ports of the first reversing valve (231) are respectively in communication with the compressor (22), the internal condenser-evaporator (24), the external condenser-evaporator (26) and the gas-liquid separator (21) to adjust the flow direction of fluid in the first reversing valve (231); the reversing valve assembly further comprises a second reversing valve (232) which is provided with four communication ports, and the four communication ports of the second reversing valve (232) are respectively in communication with the internal condenser-evaporator (24), an inlet end of the power battery pack (25), an outlet end of the power battery pack (25) and the external condenser-evaporator (26) to adjust the flow direction of fluid in the second reversing valve (232). The first pipeline (211) is further connected with a first three-way valve (212), an outlet end of the gas-liquid separator (21) is in communication with one communication port of the first three-way valve (212), an inlet end of the heat exchanger (12) is in communication with one communication port of the first three-way valve (212), and an inlet end of the compressor (22) is in communication with one communication port of the first three-way valve (212). The first pipeline (211) is further connected with a heater (27), and the heater (27) is located between the compressor (22) and the first three-way valve (212). The application further comprises an electronic expansion valve assembly, which comprises: a first electronic expansion valve (281) located between the internal condenser-evaporator (24) and the second reversing valve (232); a second electronic expansion valve (282) located between the power battery pack (25) and the second reversing valve (232); and a third electronic expansion valve (283) located between the second reversing valve (232) and the external condenser-evaporator (26). A second three-way valve (14) is further arranged between the exhaust manifold (13) and the heat exchanger (12), an outlet end of the exhaust manifold (13) is in communication with one communication port of the second three-way valve (14), an inlet end of the heat exchanger (12) is in communication with one communication port of the second three-way valve (14), and an outlet end of the heat exchanger (12) is in communication with one communication port of the second three-way valve (14). ​ 2. The range extended vehicle thermal management system of claim 1, wherein, ​ 3. The range extended vehicle thermal management system of claim 2, wherein, ​ 4. The range extended vehicle thermal management system of claim 1, wherein, ​ ​ ​ ​ 5. The range extended vehicle thermal management system of claim 1, wherein, ​ 6. The range extended vehicle thermal management system of claim 1, wherein, The exhaust manifold (13) further sequentially communicates a first turbocharger (131), a three-way catalyst (132), and an exhaust pipe (133).

7. The range extended vehicle thermal management system of claim 6, wherein, An outlet end of the heat exchanger (12) is configured to communicate with the three-way catalyst (132).

8. The range extended vehicle thermal management system of claim 1, wherein, The combustion chamber (11) further sequentially communicates an intake manifold (111), an intercooler (112), a second turbocharger (113), and an intake pipe (114).

9. The range extended vehicle thermal management system of claim 8, wherein, A filter (115) is further included, which is connected to the intake pipe (114).

10. An automobile characterized by comprising: A range-extended vehicle thermal management system as claimed in any of claims 1-9.

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