Thermal management system and vehicle

Abstract

The utility model discloses a thermal management system and vehicle, thermal management system includes: first heat exchange pipeline, fuel heater and first circulating pump, first heat exchange pipeline is suitable for being arranged in battery pack, fuel heater includes heating unit, hot water pipeline and hot air pipeline, the heating unit is used for heating hot water pipeline and hot air pipeline, and the first circulating pump is used for heating the hot water pipeline and hot air pipeline. The hot water pipeline is suitable for communicating with the first heat exchange pipeline, the hot air pipeline is suitable for communicating with a passenger cabin, the first heat exchange pipeline and the hot water pipeline are both connected with the first circulating pump, and the first circulating pump is used for driving liquid to circularly flow between the first heat exchange pipeline and the hot water pipeline. According to the thermal management system disclosed by the utility model, the battery pack and the passenger cabin are heated by the fuel heater, so that the adaptive capacity of the thermal management system in a low-temperature environment can be improved while the electric quantity attenuation and the electric heating power consumption of the battery pack in the low-temperature environment are reduced, and the electric automobile can better adapt to a low-temperature area; and popularization of the electric automobile is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a thermal management system and vehicle. BACKGROUND

[0002] The global new energy automobile industry generally faces the problem of low temperature adaptability. At present, the power battery of the new energy automobile mostly adopts lithium ion battery, but under the low temperature environment, the diffusion capacity of lithium ion in the electrolyte will be reduced, which easily causes the increase of current loss, resulting in the mileage reduction of the new energy automobile. The winter time in the northern region of China, especially in the northeast and northwest regions, is long, and the problems of mileage attenuation, frequent charging and increased faults greatly reduce the performance-price ratio of the new energy automobile. Therefore, the problem of low temperature adaptability of the power battery needs to be solved urgently. SUMMARY

[0003] The utility model discloses a thermal management system in the first aspect, the thermal management system has the advantage that the adaptability is strong under low temperature environment.

[0004] According to the thermal management system of the utility model first aspect embodiment, including: first heat exchange pipeline, be suitable for being located in battery pack;Fuel heater, including heating unit, hot water pipeline and hot air pipeline, the heating unit is used for heating the hot water pipeline and the hot air pipeline, the hot water pipeline is suitable for communicating with the first heat exchange pipeline, the hot air pipeline is suitable for communicating with the passenger cabin;First circulating pump, the first heat exchange pipeline and hot water pipeline are connected with the first circulating pump, and the first circulating pump is used for driving liquid circulation flow between the first heat exchange pipeline and the hot water pipeline.

[0005] According to the thermal management system of the utility model first aspect embodiment, through fuel heater heating battery pack and passenger cabin, while reducing the power attenuation and the electric heating power consumption of battery pack under low temperature environment, the adaptability of the thermal management system under low temperature environment can be improved, so that the electric automobile can better adapt to the low temperature area, such as the low temperature use scene of northeast and northwest regions of China, and the electric automobile is conducive to the promotion in the northern region.

[0006] According to some embodiments of the utility model, the thermal management system further includes a switching valve, the first heat exchange pipeline and the hot water pipeline are connected with the switching valve, and the switching valve is used for switching the communication or interruption between the hot water pipeline and the first heat exchange pipeline.

[0007] According to some embodiments of the present application, the heat management system further comprises: a second heat exchange pipeline, adapted to be arranged in the motor and the motor control system; a heat exchanger, formed with a first heat exchange cavity, the first heat exchange cavity is provided with a third heat exchange pipeline and a fourth heat exchange pipeline, the third heat exchange pipeline is adapted to communicate with the second heat exchange pipeline, the fourth heat exchange pipeline is connected with the switching valve, and the switching valve is used for controlling the communication or interruption between the first heat exchange pipeline and the fourth heat exchange pipeline.

[0008] According to some embodiments of the present application, the heat management system further comprises a first radiator, a first stop valve and a second stop valve, the first stop valve is connected between the first radiator and the second heat exchange pipeline and is used for controlling the communication or interruption of the first radiator and the second heat exchange pipeline, and the second stop valve is connected between the second heat exchange pipeline and the third heat exchange pipeline and is used for controlling the communication or interruption of the second heat exchange pipeline and the third heat exchange pipeline.

[0009] According to some embodiments of the present application, the heat management system further comprises an air conditioning assembly, and the air conditioning assembly comprises a first evaporator, and the first evaporator is arranged in the first heat exchange cavity.

[0010] According to some embodiments of the present application, the heat management system further comprises an air supply assembly for supplying air to the passenger cabin, and a second heat exchange cavity is formed in the air supply assembly, the hot air pipeline communicates with the second heat exchange cavity, the air conditioning assembly further comprises a second evaporator connected in parallel with the first evaporator, the second evaporator is arranged in the second heat exchange cavity, a third stop valve is arranged between the second evaporator and the condenser of the air conditioning assembly, and the third stop valve is used for controlling the communication or interruption between the second evaporator and the condenser of the air conditioning assembly.

[0011] According to some embodiments of the present application, the heat management system further comprises a second radiator, the second radiator is connected with the switching valve, and the switching valve is further used for controlling the communication or interruption between the first heat exchange pipeline and the second radiator.

[0012] According to some embodiments of the present application, the heat management system further comprises an electric heater and an air supply assembly for supplying air to the passenger cabin, a second heat exchange cavity is formed in the air supply assembly, the electric heater is arranged in the second heat exchange cavity, and the hot air pipeline communicates with the second heat exchange cavity.

[0013] According to some embodiments of the present application, the heat management system further comprises an air supply assembly for supplying air to the passenger cabin, a second heat exchange cavity is formed in the air supply assembly, and the fuel heater is arranged in the second heat exchange cavity.

[0014] The utility model discloses a second aspect proposes a kind of vehicles.

[0015] According to the vehicle of the second aspect embodiment of the utility model, comprising: above-mentioned heat management system.

[0016] According to the vehicle of the second aspect embodiment of the utility model, battery pack and passenger cabin are heated by fuel heater, while reducing the power attenuation of battery pack in low temperature environment and electric heating power consumption, the adaptability of heat management system in low temperature environment can be improved, so that electric vehicle can better adapt to low temperature area, such as the low temperature use scene of northeast and northwest area of our country, benefit the promotion of electric vehicle in northern region.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of heat management system according to the embodiment of the utility model.

[0019] Reference signs:

[0020] 100, heat management system;11, first heat exchange pipeline;12, fuel heater;13, first circulating pump;14, switching valve;15, second heat exchange pipeline;16, heat exchanger;161, first heat exchange cavity;162, third heat exchange pipeline;163, fourth heat exchange pipeline;171, first temperature sensor;172, second temperature sensor;181, first expansion tank;182, second expansion tank;21, first radiator;22, second radiator;23, cooling fan;24, first stop valve;25, second stop valve;31, first evaporator, 32, second evaporator;33, condenser;34, third stop valve;35, compressor;36, gas phase separator;37, filter;38, expansion valve;4, air supply assembly;41, second heat exchange cavity;42, electric heater;43, inner circulation air inlet;44, outer circulation air inlet;45, air supply port;46, switching baffle. DETAILED DESCRIPTION

[0021] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0023] A thermal management system 100 according to a first aspect embodiment of the present invention will now be described with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the thermal management system 100 according to the first aspect of the present invention includes: a first heat exchange pipeline 11, a fuel heater 12 and a first circulation pump 13. The first heat exchange pipeline 11 is adapted to be disposed in the battery pack. That is, the battery pack can achieve temperature regulation by exchanging heat with the heat exchange medium in the first heat exchange pipeline 11. For example, the first heat exchange pipeline 11 can be the flow path of the heat exchange medium in the liquid cooling plate of the battery pack.

[0025] The fuel heater 12 includes a heating unit, a hot water pipe, and a hot air pipe. The heating unit is used to heat the hot water pipe and the hot air pipe. The hot water pipe is adapted to be connected to the first heat exchange pipe 11, and the hot air pipe is adapted to be connected to the passenger cabin. The first heat exchange pipe 11 and the hot water pipe are both connected to the first circulation pump 13. The first circulation pump 13 is used to drive the liquid to circulate between the first heat exchange pipe 11 and the hot water pipe. It is understood that a liquid heat exchange medium is filled into the hot water pipe, and the heating unit can generate fuel by burning fuel such as gaseous fuel to heat the hot water pipe and the hot air pipe. In other words, the heating unit can heat the liquid heat exchange medium in the hot water pipe and the airflow in the hot air pipe. Since the hot water pipe can be connected to the first heat exchange pipe 11, the hot water in the hot water pipe can flow into the first heat exchange pipe 11 to heat the battery pack under the drive of the first circulation pump 13, so as to reduce the power decay of the battery pack in the low temperature environment. Furthermore, the heated airflow in the hot air pipe can be delivered to the passenger cabin to create a warm and comfortable passenger environment.

[0026] In other words, the fuel heater 12 can simultaneously heat the battery pack and the passenger cabin, wherein the fuel heater 12 has strong adaptability to low-temperature environments, and thus, by heating the battery pack and the passenger cabin through the fuel heater 12, the adaptability of the thermal management system 100 to low-temperature environments can be improved while reducing the power attenuation of the battery pack in a low-temperature environment and the power consumption of electric heating, so that the electric vehicle can better adapt to low-temperature regions, such as low-temperature use scenarios in the northeast and northwest regions of China, and thus facilitate the promotion of electric vehicles in northern regions.

[0027] According to the thermal management system 100 of the first aspect of the present application, by heating the battery pack and the passenger cabin through the fuel heater 12, the adaptability of the thermal management system 100 to low-temperature environments can be improved while reducing the power attenuation of the battery pack in a low-temperature environment and the power consumption of electric heating, so that the electric vehicle can better adapt to low-temperature regions, such as low-temperature use scenarios in the northeast and northwest regions of China, and thus facilitate the promotion of electric vehicles in northern regions.

[0028] According to some embodiments of the present application, the thermal management system 100 further comprises a switching valve 14, the first heat exchange pipeline 11 and the hot water pipeline are connected with the switching valve 14, and the switching valve 14 is used to switch the communication or interruption between the hot water pipeline and the first heat exchange pipeline 11. That is, when it is needed to heat the battery pack through the fuel heater 12, the hot water pipeline can be communicated with the first heat exchange pipeline 11 through the switching valve 14, so that the hot water in the hot water pipeline can enter the first heat exchange pipeline 11 to heat the battery pack under the drive of the first circulating pump 13. When it is needed to heat the battery pack through the fuel heater 12, the hot water pipeline can be communicated with the first heat exchange pipeline 11 through the switching valve 14 to prevent the heat exchange medium in the hot water pipeline from affecting the heat exchange between the heat exchange medium in the first heat exchange pipeline 11 and the battery pack. Therefore, by arranging the switching valve 14, different heat exchange requirements of the battery pack can be met.

[0029] According to some embodiments of the present application, the thermal management system 100 further comprises a second heat exchange pipeline 15 and a heat exchanger 16, the second heat exchange pipeline 15 is adapted to be arranged in the motor and the motor control system, that is, the motor and the motor control system can realize temperature regulation of the motor and the motor control system through heat exchange with the heat exchange medium in the second heat exchange pipeline 15, the heat exchanger 16 is formed with a first heat exchange cavity 161, the first heat exchange cavity 161 is provided with a third heat exchange pipeline 162 and a fourth heat exchange pipeline 163, the third heat exchange pipeline 162 is adapted to be communicated with the second heat exchange pipeline 15, the fourth heat exchange pipeline 163 is connected with the switching valve 14, and the switching valve 14 is used to control the communication or interruption between the first heat exchange pipeline 11 and the fourth heat exchange pipeline 163.

[0030] That is, the heat exchange medium in the third heat exchange pipeline 162 and the fourth heat exchange pipeline 163 can exchange heat in the first heat exchange pipeline 11, wherein it can be understood that the heat generated by the motor and the motor control system during operation can heat the heat exchange medium in the second heat exchange pipeline 15, therefore, through the communication of the second heat exchange pipeline 15 and the third heat exchange pipeline 162, the heated heat exchange medium enters the third heat exchange pipeline 162 and can heat the heat exchange medium in the fourth heat exchange pipeline 163, at the same time, through the control of the switching valve 14 to control the communication of the first heat exchange pipeline 11 and the fourth heat exchange pipeline 163, the heat exchange medium in the fourth heat exchange pipeline 163 can flow to the first heat exchange pipeline 11 to heat the battery pack, that is, the heat generated by the motor and the motor control system during operation can be used to heat or keep warm the battery pack, so as to save the electricity and the fuel of the fuel heater 12. When it is needed to heat or keep warm the battery pack by the fuel heater 12, the first heat exchange pipeline 11 is communicated with the hot water pipeline through the control of the switching valve 14, which will not be described here.

[0031] According to some embodiments of the present application, the heat management system 100 further comprises a first radiator 21, a first stop valve 24 and a second stop valve 25, the first stop valve 24 is connected between the first radiator 21 and the second heat exchange pipeline 15 for controlling the communication or interruption of the first radiator 21 and the second heat exchange pipeline 15, and the second stop valve 25 is connected between the second heat exchange pipeline 15 and the third heat exchange pipeline 162 for controlling the communication or interruption of the second heat exchange pipeline 15 and the third heat exchange pipeline 162.

[0032] Therefore, when the motor and the motor control system need to be cooled, the first radiator 21 can be communicated with the second heat exchange pipeline 15 through the control of the first stop valve 24, so that the heat generated by the motor and the motor control system can be transferred to the first radiator 21 through the medium of the second heat exchange pipeline 15 for cooling, so as to control the heat of the motor and the motor control system within a safe working range. When it is needed to heat or keep warm the battery pack by the heat generated by the motor and the motor control system, the second stop valve 25 can be controlled to communicate the second heat exchange pipeline 15 and the third heat exchange pipeline 162, which will not be described here.

[0033] According to some embodiments of the present application, the heat management system 100 further comprises an air conditioner assembly, the air conditioner assembly comprises a first evaporator 31, and the first evaporator 31 is arranged in the first heat exchange cavity 161. When the air conditioner assembly is in a cooling mode, the first evaporator 31 can release cold energy outwardly, so that the cold energy released outwardly by the first evaporator 31 can reduce the temperature of the medium in the third heat exchange pipeline 162, and through the communication between the third heat exchange pipeline 162 and the second heat exchange pipeline 15, the cooling of the motor and the motor control system can be realized. When the air conditioner assembly is in a heating mode, the first evaporator 31 can release heat outwardly, so that the medium in the fourth heat exchange pipeline 163 can be heated by the first evaporator 31, and through the communication between the fourth heat exchange pipeline 163 and the first heat exchange pipeline 11, the battery pack can be heated or insulated. Therefore, by arranging the first evaporator 31 in the first heat exchange cavity 161, the cooling of the motor and the motor control system can be realized through the switching in the cooling and heating modes, and the heating or insulation of the battery pack can be realized at the same time, so as to improve the flexibility of the heat management system 100.

[0034] According to some embodiments of the present application, the heat management system 100 further comprises an air supply assembly 4 for supplying air to the passenger cabin, a second heat exchange cavity 41 is formed in the air supply assembly 4, a hot air pipeline is in communication with the second heat exchange cavity 41, the air conditioner assembly further comprises a second evaporator 32 connected in parallel with the first evaporator 31, the second evaporator 32 is arranged in the second heat exchange cavity 41, a third stop valve 34 is arranged between the second evaporator 32 and the condenser 33 of the air conditioner assembly, and the third stop valve 34 is used for controlling the communication or interruption between the second evaporator 32 and the condenser 33 of the air conditioner assembly. Therefore, when the passenger cabin needs to be heated, the third stop valve 34 can be closed and the fuel heater 12 can be turned on, the hot air in the hot air pipeline enters the second heat exchange cavity 41, and the gas in the second heat exchange cavity 41 is driven to flow towards the passenger cabin, so as to improve the temperature in the passenger cabin; when the passenger cabin needs to be cooled, the second evaporator 32 can be controlled to communicate with the condenser 33 through the third stop valve 34, so that the refrigerant entering the second evaporator 32 can absorb the heat in the second heat exchange cavity 41 through vaporization, and the gas in the second heat exchange cavity 41 is driven to flow towards the passenger cabin, so as to reduce the temperature in the passenger cabin.

[0035] In one specific example, the air supply assembly 4 is a blower for conveying air flow into the passenger cabin, and the second heat exchange cavity 41 is a machine box of the blower.

[0036] According to some embodiments of the present application, the heat management system 100 further comprises a second radiator 22, the second radiator 22 is connected with the switching valve 14, and the switching valve 14 is further used for controlling the communication or interruption of the first heat exchange pipeline 11 and the second radiator 22. That is to say, when it is needed to dissipate heat of the battery pack, for example, a large amount of heat can be generated in the battery pack during a long time operation, the first heat exchange pipeline 11 and the second radiator 22 can be communicated and the first heat exchange pipeline 11 and the hot water pipeline can be interrupted at the same time by the switching valve 14, so that the heat exchange medium in the first heat exchange pipeline 11 for absorbing heat of the battery pack can flow to the second radiator 22 for heat dissipation, so as to avoid the safety hazard caused by overheating of the battery pack during a long time operation; when it is needed to heat the battery pack, the first heat exchange pipeline 11 and the hot water pipeline can be communicated and the first heat exchange pipeline 11 and the second radiator 22 can be interrupted at the same time by the switching valve 14, so that the battery pack can be heated by the hot water in the hot water pipeline. Therefore, by arranging the second radiator 22, the battery pack can be prevented from overheating, and at the same time, the fuel heater 12 can heat and keep warm the battery pack, so that the battery pack can be controlled in an efficient temperature range, so as to ensure the safety and endurance of the battery pack.

[0037] According to some embodiments of the present application, the heat management system 100 further comprises an electric heater 42 and an air supply assembly 4 for supplying air to the passenger cabin, a second heat exchange cavity 41 is formed in the air supply assembly 4, the electric heater 42 is arranged in the second heat exchange cavity 41, and a hot air pipeline is in communication with the second heat exchange cavity 41. The electric heater 42 can release heat to heat the gas in the second heat exchange cavity 41. That is to say, the hot air pipeline can be used to supply hot air to the second heat exchange cavity 41 to heat the gas in the second heat exchange cavity 41, and the electric heater 42 can also be used to heat the gas in the second heat exchange cavity 41, so that the flexibility of the heat management system 100 in selecting the mode of supplying hot air to the passenger cabin can be improved.

[0038] According to some embodiments of the present application, the heat management system 100 further comprises an air supply assembly 4 for supplying air to the passenger cabin, a second heat exchange cavity 41 is formed in the air supply assembly 4, and the fuel heater 12 is arranged in the second heat exchange cavity 41. By arranging the fuel heater 12 in the second heat exchange cavity 41, the communication structure of the hot air pipeline and the second heat exchange cavity 41 can be omitted. For example, under the driving of the air supply fan, the gas in the second heat exchange cavity 41 can directly enter the hot air pipeline through the inlet of the hot air pipeline to be heated, and then be discharged back to the second heat exchange cavity 41 through the outlet of the hot air pipeline, and finally enter the passenger cabin.

[0039] In one specific example, the switching valve 14 is a four-way valve, which is connected with the first heat exchange pipeline 11, the hot water pipeline, the fourth heat exchange pipeline 163 and the second radiator 22 respectively. The first stop valve 24, the second stop valve 25 and the third stop valve 34 are all solenoid valves.

[0040] The following is for reference. Figure 1 The present invention describes a thermal management system 100 according to a specific embodiment of the present invention. It is to be understood that the following description is merely exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] The thermal management system 100 includes a first heat exchange pipeline 11, a fuel heater 12, a first circulation pump 13, a second circulation pump, a switching valve 14, a second heat exchange pipeline 15, a heat exchanger 16, a first temperature sensor 171, a second temperature sensor 172, a first expansion tank 181, a second expansion tank 182, a first radiator 21, a second radiator 22, a cooling fan 23, a first shut-off valve 24, a second shut-off valve 25, an air conditioning assembly, and an air supply assembly 4. Specifically, the fuel heater 12 includes a heating unit, a hot water pipe, and a hot air pipe. The inlet of the first heat exchange pipe 11 is directly connected to the outlet of the hot water pipe. A first temperature sensor 171 is installed at the inlet of the first heat exchange pipe 11 to obtain the temperature of the liquid entering the first heat exchange pipe 11. A switching valve 14 has a first valve port, a second valve port, a third valve port, and a fourth valve port. A first circulation pump 13 is connected between the first valve port and the outlet of the first heat exchange pipe 11. A first expansion tank 181 is located at the outlet of the first heat exchange pipe 11. The inlet of the hot water pipe is connected to the second valve port. The inlet of the second radiator 22 is connected to the fourth valve port, and the outlet of the second radiator 22 is directly connected to the inlet of the first heat exchange pipe 11.

[0042] A first heat exchange chamber 161 is formed inside the heat exchanger 16. The first heat exchange chamber 161 is provided with a third heat exchange pipe 162 and a fourth heat exchange pipe 163. A first shut-off valve 24 is connected between the outlet of the second heat exchange pipe 15 and the inlet of the third heat exchange pipe 162. The inlet of the second heat exchange pipe 15 is directly connected to the outlet of the third heat exchange pipe 162. A second temperature sensor 172 is set at the inlet of the second heat exchange pipe 15 to obtain the temperature of the liquid entering the second heat exchange pipe 15. The outlet of the fourth heat exchange pipe 163 is directly connected to the inlet of the first heat exchange pipe 11. The inlet of the fourth heat exchange pipe 163 is connected to the third valve port. The second shut-off valve 25 is connected between the outlet of the second heat exchange pipeline 15 and the inlet of the first radiator 21. The second expansion tank 182 is located between the second shut-off valve 25 and the inlet of the first radiator 21. The outlet of the first radiator 21 is directly connected to the inlet of the second heat exchange pipeline 15. The second radiator 22 is located in front of the first radiator 21. The cooling fan 23 is located behind the first radiator 21 and blows air forward.

[0043] The air conditioning assembly comprises a first evaporator 31, a second evaporator 32, a condenser 33, a third stop valve 34, a compressor 35, a gas phase separator 36, a filter 37 and an expansion valve 38, the first evaporator 31 is located in the first heat exchange cavity 161, the condenser 33 is located between the first radiator 21 and the cooling fan 23, the compressor 35 and the gas phase separator 36 are connected in series between the outlet of the first evaporator 31 and the inlet of the condenser 33, the filter 37 and the expansion valve 38 are connected in series between the inlet of the first evaporator 31 and the outlet of the condenser 33, the second evaporator 32 is connected in parallel with the first evaporator 31, and the third stop valve 34 is arranged between the inlet of the first evaporator 31 and the inlet of the second evaporator 32 to control the flow of refrigerant to the second evaporator 32.

[0044] The second heat exchange cavity 41 is formed in the air supply assembly 4, and an air inlet and an air outlet 45 are in communication with the second heat exchange cavity 41, the air outlet 45 is in communication with the passenger cabin, the air inlet comprises an inner circulation air inlet 43 and an outer circulation air inlet 44, the inner circulation air inlet 43 is in communication with the passenger cabin, and the outer circulation air inlet 44 is in communication with the external space of the vehicle, the air supply assembly 4 comprises a switching baffle 46, the switching baffle 46 is used for switching the communication of the second heat exchange cavity 41 with the inner circulation air inlet 43 or the outer circulation air inlet 44, and the fuel heater 12 and the second evaporator 32 are arranged in the second heat exchange cavity 41.

[0045] The vehicle according to the second aspect of the present application will be described below with reference to the drawings.

[0046] The vehicle according to the second aspect of the present application comprises a thermal management system 100.

[0047] According to the vehicle according to the second aspect of the present application, the battery pack and the passenger cabin are heated by the fuel heater 12, the power attenuation of the battery pack in a low-temperature environment and the power consumption of the electric heating are reduced, the adaptability of the thermal management system 100 in a low-temperature environment is improved, and therefore the electric vehicle can better adapt to a low-temperature region, such as a low-temperature use scenario in the northeast and northwest regions of China, and the electric vehicle is conducive to popularization in northern regions.

[0048] In the present application, unless otherwise clearly specified and limited, the terms such as "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without mutual contradiction.

[0050] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A thermal management system, characterized in that, include: The first heat exchange pipeline is suitable for installation inside the battery pack; A fuel heater includes a heating unit, a hot water pipe, and a hot air pipe. The heating unit is used to heat the hot water pipe and the hot air pipe. The hot water pipe is adapted to be connected to a first heat exchange pipe, and the hot air pipe is adapted to be connected to the passenger cabin. The first circulation pump is connected to both the first heat exchange pipeline and the hot water pipeline. The first circulation pump is used to drive the liquid to circulate between the first heat exchange pipeline and the hot water pipeline.

2. The thermal management system according to claim 1, characterized in that, It also includes a switching valve, to which both the first heat exchange pipeline and the hot water pipeline are connected. The switching valve is used to switch the connection or disconnection between the hot water pipeline and the first heat exchange pipeline.

3. The thermal management system according to claim 2, characterized in that, Also includes: The second heat exchange pipeline is suitable for installation within the motor and motor control system. A heat exchanger has a first heat exchange chamber, in which a third heat exchange pipe and a fourth heat exchange pipe are provided. The third heat exchange pipe is adapted to communicate with a second heat exchange pipe, and the fourth heat exchange pipe is connected to a switching valve. The switching valve is used to control the connection or disconnection between the first heat exchange pipe and the fourth heat exchange pipe.

4. The thermal management system according to claim 3, characterized in that, It also includes a first radiator, a first shut-off valve, and a second shut-off valve. The first shut-off valve is connected between the first radiator and the second heat exchange pipeline to control the connection or disconnection of the first radiator and the second heat exchange pipeline. The second shut-off valve is connected between the second heat exchange pipeline and the third heat exchange pipeline to control the connection or disconnection of the second heat exchange pipeline and the third heat exchange pipeline.

5. The thermal management system according to claim 3, characterized in that, It also includes an air conditioning component, which includes a first evaporator disposed within the first heat exchange chamber.

6. The thermal management system according to claim 5, characterized in that, It also includes an air supply assembly for supplying air toward the passenger cabin, the air supply assembly having a second heat exchange chamber formed therein, the hot air duct being connected to the second heat exchange chamber, the air conditioning assembly also including a second evaporator connected in parallel with the first evaporator, the second evaporator being disposed in the second heat exchange chamber, a third shut-off valve being provided between the second evaporator and the condenser of the air conditioning assembly, the third shut-off valve being used to control the connection or disconnection between the second evaporator and the condenser of the air conditioning assembly.

7. The thermal management system according to claim 2, characterized in that, It also includes a second radiator, which is connected to the switching valve. The switching valve is also used to control the connection or disconnection between the first heat exchange pipeline and the second radiator.

8. The thermal management system according to claim 1, characterized in that, It also includes an electric heater and an air supply assembly for supplying air toward the passenger cabin, wherein a second heat exchange chamber is formed within the air supply assembly, the electric heater is disposed within the second heat exchange chamber, and the hot air duct is connected to the second heat exchange chamber.

9. The thermal management system according to claim 1, characterized in that, It also includes an air supply assembly for supplying air toward the occupant cabin, wherein a second heat exchange chamber is formed within the air supply assembly, and the fuel heater is disposed within the second heat exchange chamber.

10. A vehicle, characterized in that, include: The thermal management system according to any one of claims 1-9.

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