Extended-range new energy vehicle thermal management system and vehicle

Abstract

The utility model relates to the field of automobile technology discloses a kind of heat management system and vehicle of range-extended new energy automobile. Range-extended new energy automobile heat management system includes compressor, water-cooled condenser, liquid storage tank, expansion valve, cooler, ten-way valve, PTC electric heater, warm air core, water-cooled core, battery, first radiating water tank, motor, second radiating water tank and engine. Refrigerant passage of compressor, water-cooled condenser, liquid storage tank, expansion valve and cooler are communicated by first circuit;First radiating water tank, motor and water-cooled condenser second circuit communication;Second radiating water tank and engine are communicated by third circuit;Engine and ten-way valve are communicated by fourth circuit;Battery and ten-way valve are communicated by fifth circuit;Water-cooled core and ten-way valve are communicated by sixth circuit;Warm air core, PTC electric heater and ten-way valve are communicated by seventh circuit;Ten-way valve and the water passage of cooler are communicated.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a thermal management system and vehicle for a range-extended new energy vehicle. Background Technology

[0002] With the development of new energy vehicle technology, range-extended electric vehicles (REEVs) have attracted widespread attention due to their longer driving range. However, current REEV thermal management systems still have shortcomings in terms of system integration and waste heat utilization, mainly manifested in complex and dispersed system structures and insufficient waste heat recovery efficiency.

[0003] Therefore, there is an urgent need for a range-extended electric vehicle thermal management system and vehicle to solve the above problems. Utility Model Content

[0004] One objective of this invention is to provide a thermal management system for range-extended new energy vehicles that can solve the problems of complex and dispersed system structure and insufficient waste heat recovery efficiency.

[0005] Based on the above concept, the technical solution adopted by this utility model is as follows: A range-extended new energy vehicle thermal management system is provided, including a compressor, a water-cooled condenser, a liquid storage tank, an expansion valve, a cooler, a ten-way valve, a PTC electric heater, a heater core, a water-cooled core, a battery, a first radiator, a motor, a second radiator, and an engine. The cooler has a refrigerant channel and a water channel capable of heat exchange. The compressor, the water-cooled condenser, the liquid storage tank, the expansion valve, and the refrigerant passage of the cooler are connected through a first circuit; the first radiator, the motor, and the water-cooled condenser are connected through a second circuit; the second radiator and the engine are connected through a third circuit; the engine and the ten-way valve are connected through a fourth circuit. The battery is connected to the ten-way valve via a fifth circuit; the water-cooled core is connected to the ten-way valve via a sixth circuit; the warm air core, the PTC electric heater, and the ten-way valve are connected to the ten-way valve via a seventh circuit; and the ten-way valve is connected to the water channel of the cooler.

[0006] Optionally, the ten-way valve has ten ports. When operating in engine waste heat recovery mode, port a is connected to port b and port c respectively, and port f is connected to port e and port d respectively. The engine outlet is connected to interface a via the fourth circuit, and interface f is connected to the engine inlet via the fourth circuit; interface b is connected to the battery water-cooling inlet via the fifth circuit, and the battery water-cooling outlet is connected to interface e via the fifth circuit; interface c is connected to the heater core water-cooling inlet via the seventh circuit, and the PTC electric heater water-cooling outlet is connected to interface d via the seventh circuit.

[0007] Optionally, the ten-way valve has ten ports. When operating in dehumidification mode, port a is connected to port e and port h respectively, port j is connected to port b and port g respectively, and port d is connected to port c. The water-cooled inlet of the cooler is connected to interface i, and the water-cooled outlet of the cooler is connected to interface j; interface b is connected to the water-cooled inlet of the battery through the fifth circuit, and the water-cooled outlet of the battery is connected to interface e through the fifth circuit; interface g is connected to the water-cooled inlet of the water-cooled core through the sixth circuit, and the water-cooled outlet of the water-cooled core is connected to interface h through the sixth circuit; interface c is connected to the water-cooled inlet of the heater core through the seventh circuit, and the water-cooled outlet of the PTC electric heater is connected to interface d through the seventh circuit.

[0008] Optionally, the ten-way valve has ten ports. When operating in heating mode, port a is connected to port f, port d is connected to ports b and c respectively, and port e is connected to port c. The engine outlet is connected to interface a via the fourth circuit, and interface f is connected to the engine inlet via the fourth circuit; the water-cooled outlet of the PTC electric heater is connected to interface d via the seventh circuit, and interface c is connected to the water-cooled inlet of the heater core via the seventh circuit; interface b is connected to the water-cooled inlet of the battery via the fifth circuit, and the water-cooled outlet of the battery is connected to interface e via the fifth circuit.

[0009] Optionally, the ten-way valve has ten ports. When operating in cooling mode, port i is connected to port e and port h, respectively, and port j is connected to port b and port g, respectively. The water-cooling inlet of the cooler is connected to interface i, and the water-cooling outlet of the cooler is connected to interface j; interface b is connected to the water-cooling inlet of the battery through the fifth circuit, and the water-cooling outlet of the battery is connected to interface e through the fifth circuit; interface g is connected to the water-cooling inlet of the water-cooling core through the sixth circuit, and the water-cooling outlet of the water-cooling core is connected to interface h through the sixth circuit.

[0010] Optionally, a first water pump is installed on the second circuit; And / or, a second water pump is provided on both the third circuit and the fourth circuit; And / or, a third water pump is installed on the fifth circuit; And / or, a fourth water pump is provided on the sixth circuit; And / or, a fifth water pump is installed on the seventh circuit.

[0011] Optionally, the range-extended electric vehicle thermal management system further includes a fan, which drives air to exchange heat with the first radiator and the second radiator.

[0012] Optionally, the range-extended new energy vehicle thermal management system further includes a blower, which drives air to exchange heat with the heating core and the water-cooling core.

[0013] Optionally, the range-extended new energy vehicle thermal management system further includes a three-way valve, wherein the engine is connected to the second radiator through the first passage of the three-way valve to form the third circuit, and the engine is connected to the ten-way valve through the second passage of the three-way valve to form the fourth circuit, and the second water pump is disposed between the engine and the three-way valve.

[0014] Another objective of this invention is to provide a vehicle that can solve the problems of complex and dispersed structure and insufficient waste heat recovery efficiency in the thermal management system of range-extended new energy vehicles.

[0015] Based on the above concept, the technical solution adopted by this utility model is as follows: A vehicle is provided, including the aforementioned range-extended electric vehicle thermal management system.

[0016] The beneficial effects of this utility model are as follows: This utility model proposes a range-extended new energy vehicle thermal management system, including a compressor, a water-cooled condenser, a liquid receiver, an expansion valve, a cooler, a ten-way valve, a PTC electric heater, a heater core, a water-cooled core, a battery, a first radiator, a motor, a second radiator, and an engine. The cooler has refrigerant and water channels for heat exchange. On the refrigerant side, the compressor, water-cooled condenser, liquid receiver, expansion valve, and cooler's refrigerant channels are sequentially connected through a first loop, and the refrigerant circulates within the first loop. The first radiator, motor, and water-cooled condenser are sequentially connected through a second loop. The engine is connected to the second radiator through a third loop and also to the ten-way valve through a fourth loop. On the water side, the battery and ten-way valve are connected through a fifth loop, the water-cooled core and ten-way valve through a sixth loop, and the heater core, PTC electric heater, and ten-way valve through a seventh loop. The ten-way valve is connected to the cooler's water channel. By coupling the battery, water-cooled core, heater core, and engine to the system using a ten-way valve, and in conjunction with the aforementioned integrated refrigerant-side components, the system can meet a wide range of usage scenarios. Besides cooling and heating the vehicle's passenger compartment, it can also connect the engine to the ten-way valve to recover waste heat from the engine to the water side, improving waste heat recovery efficiency. Furthermore, due to the ten-way valve and water-cooled core, the second radiator and engine no longer need to be connected to the evaporator; instead, they are directly connected to the ten-way valve and coupled to the water side. This simplifies the refrigerant-side component structure and increases its integration.

[0017] The vehicle proposed in this utility model includes the aforementioned range-extended new energy vehicle thermal management system, which can solve the problems of complex and dispersed system structure and insufficient waste heat recovery efficiency of range-extended new energy vehicle thermal management systems. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the thermal management system for a range-extended new energy vehicle provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the thermal management system for a range-extended new energy vehicle provided in an embodiment of the present invention (in engine waste heat recovery mode). Figure 3 This is a schematic diagram of the thermal management system for a range-extended new energy vehicle provided in this embodiment of the utility model (in dehumidification mode). Figure 4 This is a schematic diagram of the thermal management system for a range-extended new energy vehicle provided in this embodiment of the utility model (in heating mode). Figure 5 This is a schematic diagram of the thermal management system for a range-extended new energy vehicle provided in an embodiment of this utility model (in cooling mode).

[0019] In the picture: 1. Compressor; 2. Water-cooled condenser; 3. Liquid receiver; 4. Expansion valve; 5. Cooler; 6. 10-way valve; 7. PTC electric heater; 8. Heater core; 9. Water-cooled core; 10. Blower; 11. Battery; 12. First radiator; 13. Motor; 14. Second radiator; 15. Fan; 16. Engine; 101. First circuit; 102. Second circuit; 103. Third circuit; 104. Fourth circuit; 105. Fifth circuit; 106. Sixth circuit; 107. Seventh circuit; 201. First water pump; 202. Second water pump; 203. Third water pump; 204. Fourth water pump; 205. Fifth water pump. Detailed Implementation

[0020] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 As shown, this embodiment provides a thermal management system for a range-extended new energy vehicle, including a compressor 1, a water-cooled condenser 2, a liquid receiver 3, an expansion valve 4, a cooler 5, a ten-way valve 6, a PTC electric heater 7, a heater core 8, a water-cooled core 9, a battery 11, a first radiator 12, a motor 13, a second radiator 14, and an engine 16. The cooler 5 has a refrigerant passage and a water passage for heat exchange. On the refrigerant side, the refrigerant passages of the compressor 1, water-cooled condenser 2, liquid receiver 3, expansion valve 4, and cooler 5 are sequentially connected through a first circuit 101, and the refrigerant circulates within the first circuit 101. The first radiator 12, motor 13, and water-cooled condenser 2 are sequentially connected through a second circuit 102. The engine 16 is not only connected to the second radiator 14 through a third circuit 103, but also connected to the ten-way valve 6 through a fourth circuit 104. On the water side, battery 11 is connected to ten-way valve 6 via fifth circuit 105, water-cooled core 9 is connected to ten-way valve 6 via sixth circuit 106, and heater core 8, PTC electric heater 7, and ten-way valve 6 are connected via seventh circuit 107. Ten-way valve 6 is connected to the water channel of cooler 5. By setting ten-way valve 6 to couple battery 11, water-cooled core 9, heater core 8, and engine 16 into the system, and in conjunction with the aforementioned integrated refrigerant-side components, the system can meet a wide range of usage scenarios. In addition to cooling and heating the vehicle's passenger compartment, it can also connect engine 16 to ten-way valve 6 to recover waste heat from engine 16 to the water side, improving waste heat recovery efficiency. Furthermore, due to the setting of ten-way valve 6 and water-cooled core 9, the second radiator 14 and engine 16 no longer need to be connected to the evaporator, but are directly connected to ten-way valve 6 and coupled to the water side through ten-way valve 6. This simplifies the structure of refrigerant-side components and increases integration.

[0026] In this embodiment, the ten-way valve 6 has ten ports, such as... Figure 1 As shown, the ten interfaces are interface a, interface b, interface c, interface d, interface e, interface f, interface g, interface h, interface i, and interface j.

[0027] like Figure 2 As shown, when the range-extended electric vehicle's thermal management system operates in engine waste heat recovery mode, of the ten ports of the ten-way valve 6, port a is connected to ports b and c respectively, and port f is connected to ports e and d respectively. When the water-cooled outlet of engine 16 is connected to port a through the fourth circuit 104, port f is connected to the water-cooled inlet of engine 16 through the fourth circuit 104. Port b is connected to the water-cooled inlet of battery 11 through the fifth circuit 105, and the water-cooled outlet of battery 11 is connected to port e through the fifth circuit 105. Port c is connected to the water-cooled inlet of heater core 8 through the seventh circuit 107, and the water-cooled outlet of PTC electric heater 7 is connected to port d through the seventh circuit 107.

[0028] In this mode, the waste heat from engine 16 is transferred via ten-way valve 6 to the seventh circuit 107 containing heater core 8 and the fifth circuit 105 containing battery 11. The high-temperature coolant flowing through engine 16 flows through the engine 16's water-cooled outlet channel to interface a of ten-way valve 6. A portion of the high-temperature coolant flows out from interface c of ten-way valve 6 and enters heater core 8, then is further heated by PTC electric heater 7 and returns to ten-way valve 6 via interface d. Another portion of the high-temperature coolant flows out from interface b of ten-way valve 6 and enters battery 11, heating battery 11 before returning to ten-way valve 6 via interface e. The two coolant streams converge at ten-way valve 6 and return to engine 16 via interface f, forming a coolant circulation. In this embodiment, a second water pump 202 is also installed on the fourth circuit 104. The second water pump 202 drives the high-temperature coolant from the engine 16's water-cooled outlet channel to interface a. A third water pump 203 is also installed on the fifth circuit 105. The third water pump 203 is used to drive the coolant after heating the battery 11 to flow to the interface e. A fifth water pump 205 is also installed on the seventh circuit 107. The fifth water pump 205 is used to drive the coolant from the water-cooled outlet of the heater core 8 to the PTC electric heater 7.

[0029] In this mode, high-temperature coolant flows through the heater core 8 to enhance the heat exchange efficiency of the heater core 8 with the air and improve the heating effect on the passenger compartment. In this embodiment, the range-extended electric vehicle thermal management system also includes a blower 10, which is used to drive air to exchange heat with the heater core 8 so as to bring the heated gas into the passenger compartment.

[0030] In this mode, the coolant in the second circuit 102 circulates between the motor 13, the water-cooled condenser 2, and the first heat dissipation tank 12. In this embodiment, a first water pump 201 is also provided on the second circuit 102, which is used to drive the coolant in the second circuit 102 to continuously circulate.

[0031] like Figure 3As shown, when the range-extended electric vehicle's thermal management system operates in dehumidification mode, interface i is connected to interfaces e and h respectively, interface j is connected to interfaces b and g respectively, and interface d is connected to interface c. The water-cooling inlet of cooler 5 is connected to interface i, and the water-cooling outlet of cooler 5 is connected to interface j. Interface b is connected to the water-cooling inlet of battery 11 through the fifth circuit 105, and the water-cooling outlet of battery 11 is connected to interface e through the fifth circuit 105. Interface g is connected to the water-cooling inlet of water-cooled core 9 through the sixth circuit 106, and the water-cooling outlet of water-cooled core 9 is connected to interface h through the sixth circuit 106. Interface c is connected to the water-cooling inlet of heater core 8 through the seventh circuit 107, and the water-cooling outlet of PTC electric heater 7 is connected to interface d through the seventh circuit 107.

[0032] In this mode, the low-temperature superheated refrigerant gas is drawn into compressor 1 and compressed into a high-temperature, high-pressure gaseous refrigerant. It then enters the water-cooled condenser 2 to condense and release heat. After passing through the liquid storage tank 3 and being throttled by the expansion valve 4, it enters the cooler 5 to absorb heat. The refrigerant becomes a superheated gas and flows into the suction port of compressor 1 to enter the next cycle. Meanwhile, the low-temperature coolant cooled in the water channel of cooler 5 enters the ten-way valve 6 through interface j, and is divided into two parts, flowing into the fifth circuit 105 where battery 11 is located and the sixth circuit 106 where the water-cooled core 9 is located, respectively. After cooling is completed, it returns to the water channel of cooler 5. A fourth water pump 204 is also installed on the sixth circuit 106, which drives the coolant to flow from the water-cooled outlet of the water-cooled core 9 to interface h. A third water pump 203 is also installed on the fifth circuit 105, which drives the coolant cooled from battery 11 to flow to interface e.

[0033] In this mode, the low-temperature coolant from the water channel outlet of the cooler 5 enters the ten-way valve 6 via interface j, and then enters the water-cooled core 9 through the sixth circuit 106 via interface g. The coolant in the water-cooled core 9 exchanges heat with the air, so that the cold energy released by the water-cooled core 9 can cool the passenger cabin. The high-humidity air will condense and precipitate moisture after cooling, thereby achieving the purpose of dehumidification in the passenger cabin. In this embodiment, the blower 10 is used to drive the air to exchange heat with the water-cooled core 9. In addition, the seventh circuit 107 where the heater core 8 is located is also connected to the ten-way valve 6 via interfaces c and d. The coolant can then enter the PTC electric heater 7 in the seventh circuit 107 for heating. The cooled air is also heated and flows into the heater core 8, so that the low-temperature air after dehumidification is heated by the heater core 8 before being delivered to the passenger cabin to meet the comfort requirements of the passenger cabin. In this embodiment, a fifth water pump 205 is also provided on the seventh circuit 107. The fifth water pump 205 is used to drive the coolant to flow from the water-cooled outlet of the heater core 8 to the PTC electric heater 7.

[0034] In this mode, the coolant in the second circuit 102 circulates between the motor 13, the water-cooled condenser 2, and the first radiator 12. The range-extended new energy vehicle thermal management system provided in this embodiment also includes a fan 15, which drives air to exchange heat with the first radiator 12. The heat of the coolant is carried away, and the coolant returns to the water-cooling inlet of the motor 13 via the first water pump 201 to cool the motor 13 and continuously circulate.

[0035] In this mode, the coolant in the third circuit 103 circulates between the engine 16 and the second radiator 14. In this embodiment, a second water pump 202 is also installed on the third circuit 103. The second water pump 202 drives the high-temperature coolant from the water-cooled outlet of the engine 16 into the second radiator 14. The range-extended electric vehicle thermal management system provided in this embodiment also includes a fan 15. The fan 15 drives air to exchange heat with the second radiator 14, carrying away the heat from the coolant. The coolant then returns to the water-cooled inlet of the engine 16 via the second water pump 202 to cool the engine 16 and continues to circulate.

[0036] like Figure 4 As shown, when the range-extended electric vehicle's thermal management system is running in heating mode, interface a is connected to interface f, interface d is connected to interfaces b and c respectively, and interface e is connected to interface c. The water-cooled outlet of engine 16 is connected to interface a through the fourth circuit 104, and interface f is connected to the water-cooled inlet of engine 16 through the fourth circuit 104. The water-cooled outlet of PTC electric heater 7 is connected to interface d through the seventh circuit 107, and interface c is connected to the water-cooled inlet of heater core 8 through the seventh circuit 107. Interface b is connected to the water-cooled inlet of battery 11 through the fifth circuit 105, and the water-cooled outlet of battery 11 is connected to interface e through the fifth circuit 105.

[0037] In this mode, the fifth water pump 205 drives the coolant into the PTC electric heater 7 in the seventh circuit 107. After being heated, the coolant enters the ten-way valve 6 through interface d and splits into two paths. One path of coolant flows into the heater core 8 through interface c and then returns to the fifth water pump 205. The other path of coolant flows into the fifth circuit 105 containing the battery 11 through interface b to heat the battery 11. Then, it is driven by the third water pump 203 through interfaces e and c to return to the heater core 8. In this embodiment, the blower 10 drives the air to exchange heat with the heater core 8. After the air is heated, the warm air is carried into the passenger compartment by the blower 10, thereby heating the passenger compartment.

[0038] In this mode, the coolant in the fourth circuit 104 is driven by the second water pump 202 to circulate between the water-cooled outlet of the engine 16 and the water-cooled inlet of the engine 16 to achieve heat storage in the engine 16.

[0039] In this mode, the coolant in the second circuit 102 circulates between the motor 13, the water-cooled condenser 2, and the first radiator 12. The fan 15 drives the air to exchange heat with the first radiator 12, and the heat of the coolant is carried away. The coolant returns to the water-cooling inlet of the motor 13 via the first water pump 201 to cool the motor 13 and continue to circulate.

[0040] like Figure 5 As shown, when the range-extended electric vehicle's thermal management system operates in cooling mode, interface i is connected to interfaces e and h, respectively, and interface j is connected to interfaces b and g, respectively. The water-cooling inlet of cooler 5 is connected to interface i, and the water-cooling outlet of cooler 5 is connected to interface j. Interface b is connected to the water-cooling inlet of battery 11 through the fifth circuit 105, and the water-cooling outlet of battery 11 is connected to interface e through the fifth circuit 105. Interface g is connected to the water-cooling inlet of water-cooled core 9 through the sixth circuit 106, and the water-cooling outlet of water-cooled core 9 is connected to interface h through the sixth circuit 106.

[0041] In this mode, the low-temperature superheated refrigerant gas is drawn into the compressor 1 and compressed into a high-temperature, high-pressure gaseous refrigerant. It then enters the water-cooled condenser 2 to condense and release heat. After passing through the liquid receiver 3 and being throttled by the expansion valve 4, it enters the cooler 5 to absorb heat. The refrigerant becomes a superheated gas and flows into the suction port of the compressor 1 to enter the next cycle. Meanwhile, the low-temperature coolant cooled in the water channel of the cooler 5 enters the ten-way valve 6 through interface j, and is divided into two parts, flowing into the fifth circuit 105 where the battery 11 is located and the sixth circuit 106 where the water-cooled core 9 is located, respectively. After cooling is completed, it returns to the water channel of the cooler 5.

[0042] In this mode, the low-temperature coolant from the water channel outlet of cooler 5 enters the ten-way valve 6 via interface j. A portion passes through interface g and the sixth circuit 106 into the water-cooled core 9. The coolant in the water-cooled core 9 then exchanges heat with the air, allowing the cooling energy released by the water-cooled core 9 to cool the passenger cabin. It is then driven back to interface h by the fourth water pump 204. Another portion passes through interface b and the fifth circuit 105 into the battery 11, cooling the battery. It is then driven back to interface e by the third water pump 203. The two portions of coolant converge at the ten-way valve 6 and then return to the water channel of cooler 5 via interface i. In this embodiment, blower 10 is used to drive air to exchange heat with the water-cooled core 9. The cooling energy released by the water-cooled core 9 is carried into the passenger cabin by blower 10, thereby cooling the passenger cabin.

[0043] In this mode, the coolant in the second circuit 102 circulates between the motor 13, the water-cooled condenser 2, and the first radiator 12. The fan 15 drives the air to exchange heat with the first radiator 12, and the heat of the coolant is carried away. The coolant returns to the water-cooling inlet of the motor 13 via the first water pump 201 to cool the motor 13 and continue to circulate.

[0044] In this mode, the coolant in the third circuit 103 circulates between the engine 16 and the second radiator 14. The fan 15 drives air to exchange heat with the second radiator 14, and the heat of the coolant is carried away. The coolant is then returned to the water-cooled inlet of the engine 16 via the second water pump 202 to cool the engine 16 and continues to circulate.

[0045] Optionally, the range-extended new energy vehicle thermal management system also includes a three-way valve. The engine 16 is connected to the second radiator 14 through the first passage of the three-way valve to form a third circuit 103. The engine 16 is connected to the ten-way valve 6 through the second passage of the three-way valve to form a fourth circuit 104. The second water pump 202 is located between the engine 16 and the three-way valve, so that the second water pump 202 can be in the third circuit 103 and the fourth circuit 104.

[0046] This embodiment also provides a vehicle including the above-mentioned range-extended electric vehicle thermal management system, which can solve the problems of complex and dispersed system structure and insufficient waste heat recovery efficiency of range-extended electric vehicle thermal management systems.

[0047] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thermal management system for range-extended electric vehicles, characterized in that, The system includes a compressor (1), a water-cooled condenser (2), a liquid storage tank (3), an expansion valve (4), a cooler (5), a ten-way valve (6), a PTC electric heater (7), a warm air core (8), a water-cooled core (9), a battery (11), a first heat dissipation tank (12), a motor (13), a second heat dissipation tank (14), and an engine (16). The cooler (5) has a refrigerant passage and a water passage for heat exchange. The refrigerant passages of the compressor (1), the water-cooled condenser (2), the liquid storage tank (3), the expansion valve (4), and the cooler (5) are connected through a first circuit (101); the first heat sink (12), the motor (13), and the water-cooled condenser (2) are connected through a second circuit (102); the second heat sink (14) and the engine (16) are connected through a third circuit (103); the engine (16) and the ten-way valve (6) are connected through a fourth circuit (104). The battery (11) is connected to the ten-way valve (6) through the fifth circuit (105); the water-cooled core (9) is connected to the ten-way valve (6) through the sixth circuit (106); the warm air core (8), the PTC electric heater (7) and the ten-way valve (6) are connected to the seventh circuit (107); the ten-way valve (6) is connected to the water channel of the cooler (5).

2. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, The ten-way valve (6) has ten ports. When running in engine waste heat recovery mode, port a is connected to port b and port c respectively, and port f is connected to port e and port d respectively. The outlet of the engine (16) is connected to interface a through the fourth circuit (104), and interface f is connected to the inlet of the engine (16) through the fourth circuit (104); interface b is connected to the water-cooled inlet of the battery (11) through the fifth circuit (105), and the water-cooled outlet of the battery (11) is connected to interface e through the fifth circuit (105); interface c is connected to the water-cooled inlet of the heater core (8) through the seventh circuit (107), and the water-cooled outlet of the PTC electric heater (7) is connected to interface d through the seventh circuit (107).

3. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, The ten-way valve (6) has ten ports. When it is running in dehumidification mode, port a is connected to port e and port h respectively, port j is connected to port b and port g respectively, and port d is connected to port c. The water-cooled inlet of the cooler (5) is connected to interface i, and the water-cooled outlet of the cooler (5) is connected to interface j; interface b is connected to the water-cooled inlet of the battery (11) through the fifth circuit (105), and the water-cooled outlet of the battery (11) is connected to interface e through the fifth circuit (105); interface g is connected to the water-cooled inlet of the water-cooled core (9) through the sixth circuit (106), and the water-cooled outlet of the water-cooled core (9) is connected to interface h through the sixth circuit (106); interface c is connected to the water-cooled inlet of the warm air core (8) through the seventh circuit (107), and the water-cooled outlet of the PTC electric heater (7) is connected to interface d through the seventh circuit (107).

4. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, The ten-way valve (6) has ten ports. When running in heating mode, port a is connected to port f, port d is connected to ports b and c respectively, and port e is connected to port c. The outlet of the engine (16) is connected to interface a through the fourth circuit (104), and interface f is connected to the inlet of the engine (16) through the fourth circuit (104); the water-cooled outlet of the PTC electric heater (7) is connected to interface d through the seventh circuit (107), and interface c is connected to the water-cooled inlet of the heater core (8) through the seventh circuit (107); interface b is connected to the water-cooled inlet of the battery (11) through the fifth circuit (105), and the water-cooled outlet of the battery (11) is connected to interface e through the fifth circuit (105).

5. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, The ten-way valve (6) has ten ports. When running in cooling mode, port i is connected to port e and port h respectively, and port j is connected to port b and port g respectively. The water-cooled inlet of the cooler (5) is connected to interface i, and the water-cooled outlet of the cooler (5) is connected to interface j; interface b is connected to the water-cooled inlet of the battery (11) through the fifth circuit (105), and the water-cooled outlet of the battery (11) is connected to interface e through the fifth circuit (105); interface g is connected to the water-cooled inlet of the water-cooled core (9) through the sixth circuit (106), and the water-cooled outlet of the water-cooled core (9) is connected to interface h through the sixth circuit (106).

6. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, A first water pump (201) is installed on the second circuit (102); And / or, a second water pump (202) is provided on both the third circuit (103) and the fourth circuit (104). And / or, a third water pump (203) is provided on the fifth circuit (105); And / or, a fourth water pump (204) is provided on the sixth circuit (106). And / or, a fifth water pump (205) is provided on the seventh circuit (107).

7. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, The range-extended new energy vehicle thermal management system also includes a fan (15), which is used to drive air to exchange heat with the first radiator (12) and the second radiator (14).

8. The range-extended electric vehicle thermal management system according to claim 1, characterized in that, The range-extended new energy vehicle thermal management system also includes a blower (10), which is used to drive air to exchange heat with the heating core (8) and the water-cooled core (9).

9. The range-extended electric vehicle thermal management system according to claim 6, characterized in that, The range-extended new energy vehicle thermal management system also includes a three-way valve. The engine (16) is connected to the second radiator (14) through the first passage of the three-way valve to form the third circuit (103). The engine (16) is connected to the ten-way valve (6) through the second passage of the three-way valve to form the fourth circuit (104). The second water pump (202) is located between the engine (16) and the three-way valve.

10. A vehicle, characterized in that, The thermal management system for range-extended new energy vehicles as described in any one of claims 1 to 9.

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