Low-temperature starting system for vehicle and vehicle

Abstract

The utility model discloses a low-temperature starting system for a vehicle and the vehicle. The low-temperature starting system comprises a battery; the gas supply device is communicated with the inlet end of the battery and is suitable for supplying gas to the battery; the discharging device is communicated with the outlet end of the battery and is suitable for discharging liquid generated by working of the battery to the outside; and the pump component selectively communicates the battery with the discharge device so as to extract the liquid in the battery and guide the liquid to the discharge device. Therefore, the starting time of the system can be shortened, the overall efficiency is better improved, and the energy loss of the system is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular, to a low-temperature starting system for a vehicle and a vehicle. Background Art

[0002] When a fuel cell operates under low-temperature conditions, the water generated by the electrochemical reaction in the fuel cell freezes, reducing the electrochemically active area of the catalyst layer and blocking the reaction gas channels, thereby affecting the battery performance and ultimately resulting in the failure of the battery to start at low temperature and unable to operate normally. To this end, a heater is usually provided on the coolant delivery pipeline, and the heater is used to heat the coolant to shorten the time of low-temperature cold start. However, in a low-temperature environment, even if the coolant is heated by the heater, the system still has problems of long start-up time and start-up failure. Summary of the Utility Model

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the present application is to provide a low-temperature starting system for a vehicle, which can shorten the system start-up time, better improve the overall efficiency of the machine, and reduce the energy loss of the system.

[0004] The low-temperature starting system for a vehicle according to an embodiment of the present application includes: a battery; a gas supply device; a discharge device and a pump component. The gas supply device is communicated with the inlet end of the battery and is adapted to supply gas to the battery. The discharge device is communicated with the outlet end of the battery and is adapted to discharge the liquid generated by the operation of the battery to the outside. The pump component selectively communicates the battery and the discharge device to pump the liquid inside the battery and direct it to the discharge device.

[0005] The low-temperature starting system for a vehicle according to an embodiment of the present application pumps the water generated by the electrochemical reaction inside the battery through the pump component and directs the water inside the battery to the discharge device to prevent the residual water in the battery from freezing in a low-temperature environment, thereby shortening the system start-up time, improving the overall efficiency, and reducing the energy loss of the system.

[0006] According to some embodiments of the present application, the battery has a first heat exchange port and a second heat exchange port. The low-temperature starting system further includes: a heat exchange device, which is respectively communicated with the first heat exchange port and the second heat exchange port and is adapted to exchange heat with the battery.

[0007] A low-temperature starting system for a vehicle according to some embodiments of the present application. The heat exchange device includes: a driving member, an inlet end of the driving member being in communication with the first heat exchange port; a liquid storage member, an inlet end of the liquid storage member being in communication with an outlet end of the driving member, a cavity adapted to store a coolant being formed inside the liquid storage member; a heat exchanger, an inlet end of the heat exchanger being in communication with an outlet end of the liquid storage member, an outlet end of the heat exchanger being in communication with the second heat exchange port; wherein the driving member is configured as the pump component.

[0008] A low-temperature starting system for a vehicle according to some embodiments of the present application. The pump component has a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet is selectively in communication with an outlet end of the battery, and the first outlet is in communication with the discharge device; the second inlet is in communication with the first heat exchange port, and the second outlet is in communication with an inlet end of the liquid storage member.

[0009] A low-temperature starting system for a vehicle according to some embodiments of the present application further includes: a first valve body disposed between the first inlet of the pump component and the outlet end of the battery and selectively connecting or disconnecting the first inlet and the outlet end.

[0010] A low-temperature starting system for a vehicle according to some embodiments of the present application further includes: a second valve body disposed between the outlet end of the battery and the discharge device and selectively connecting or disconnecting the outlet end of the battery and the discharge device.

[0011] A low-temperature starting system for a vehicle according to some embodiments of the present application. The air supply device includes an air filter, an air compressor, an intercooler, and a humidifier connected in sequence. An outlet end of the humidifier is selectively in communication with an inlet end of the battery.

[0012] A low-temperature starting system for a vehicle according to some embodiments of the present application further includes: a third valve body disposed between the outlet end of the humidifier and the inlet end of the battery and selectively connecting or disconnecting the outlet end of the humidifier and the inlet end of the battery.

[0013] A low-temperature starting system for a vehicle according to some embodiments of the present application further includes: a fourth valve body, one end of the fourth valve body being in communication with an outlet end of the air filter, the other end of the fourth valve body being in communication with an inlet end of the battery, and the fourth valve body selectively connecting or disconnecting the outlet end of the air filter and the inlet end of the battery.

[0014] The present application also proposes a vehicle.

[0015] A vehicle according to an embodiment of the present application includes the low-temperature starting system for a vehicle described in any of the above embodiments.

[0016] The vehicle according to an embodiment of the present application pumps the water generated by the electrochemical reaction inside the battery through a pump component and guides the water inside the battery to a discharge device, so as to avoid the water remaining in the battery from freezing in a low-temperature environment, thereby shortening the system startup time, improving the overall efficiency, reducing the energy loss of the system, and improving the vehicle performance.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic connection block diagram of a low-temperature starting system according to an embodiment of the present application;

[0020] Figure 2 is Figure 1 a schematic connection block diagram of the low-temperature starting system in the first working mode;

[0021] Figure 3 is Figure 1 a schematic connection block diagram of the low-temperature starting system in the second working mode.

[0022] REFERENCE SIGNS:

[0023] 100, low-temperature starting system;

[0024] 1, battery; 11, first heat exchange port; 12, second heat exchange port;

[0025] 2, air supply device; 21, air filter; 22, air compressor; 23, intercooler; 24, humidifier;

[0026] 3, discharge device;

[0027] 4, pump component; 41, first inlet; 42, second inlet; 43, first outlet; 44, second outlet;

[0028] 5, heat exchange device; 51, liquid storage member; 52, heat exchanger;

[0029] 6, first valve body; 7, second valve body; 8, third valve body; 9, fourth valve body;

[0030] 101, control unit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0032] Next, with reference to the accompanying drawings, a low-temperature starting system 100 according to an embodiment of the present application will be described.

[0033] As Figures 1-3 shown, the low-temperature starting system 100 for a vehicle according to an embodiment of the present application includes: a battery 1, a gas supply device 2, a discharge device 3, and a pump component 4. The gas supply device 2 can be communicated with the inlet end of the battery 1, and the gas supply device 2 is adapted to supply gas to the battery 1. The discharge device 3 can be communicated with the outlet end of the battery 1, and the discharge device 3 is adapted to discharge the liquid generated by the operation of the battery 1 to the outside. The pump component 4 selectively connects the battery 1 and the discharge device 3. The pump component 4 can extract the liquid inside the battery 1 and direct it to the discharge device 3.

[0034] Thereby, the system starting time can be shortened, the overall machine efficiency can be better improved, and the system energy loss can be reduced.

[0035] First, as Figure 1 shown, the low-temperature starting system 100 includes a battery 1, a gas supply device 2, a discharge device 3, and a pump component 4. The gas supply device 2 can be communicated with the inlet end of the battery 1, the discharge device 3 can be communicated with the outlet end of the battery 1, and the pump component 4 can connect the battery 1 and the discharge device 3 under different working conditions. Optionally, the pump component 4 can only be connected to the power supply, or the pump component 4 can only be connected to the discharge device 3, or the pump component 4 can be connected to the power supply and the discharge device 3.

[0036] It can be understood that in the normal operation condition of the battery 1, external air can enter the battery 1 after being processed by the gas supply device 2 and react with hydrogen to generate water, and the generated water can be discharged into the external environment through the discharge device 3, so as to realize discharging water from the battery 1 to the outside in the normal operation condition.

[0037] In the water removal condition, since the pump component 4 can selectively connect the battery 1 and the discharge device 3, after the pump component 4 connects the battery 1 and the discharge device 3, the pump component 4 operates and realizes the air extraction function, so that the passage section connecting the pump component 4 and the battery 1 is a negative pressure passage, and the water and water vapor in the battery 1 can be inhaled into the pump component 4 under the influence of negative pressure. The pump component 4 is communicated with the exhaust device, and then the inhaled water and water vapor are discharged into the external environment through the discharge device 3.

[0038] It should be noted that there are various ways for the pump component 4 to selectively connect the battery 1 and the discharge device 3. For example, an electromagnetic valve can be installed on the pipeline between the battery 1 and the discharge device 3 and between the battery 1 and the pump component 4. When connection is required, the electromagnetic valve receives a control signal and opens, enabling the pump component 4 to extract the liquid inside the battery 1 and direct it to the discharge device 3. Or, connection can be achieved through a combination of a mechanical link and a slider. Or, compressed air can be used to drive the movement of the diaphragm valve, thereby controlling the connection between the pump component 4, the battery 1, and the discharge device 3.

[0039] According to the low-temperature startup system 100 of the embodiment of the present application, the pump component 4 extracts the water generated by the electrochemical reaction inside the battery 1 and directs the water inside the battery 1 to the discharge device 3, so as to prevent the residual water in the battery 1 from freezing in a low-temperature environment, thereby shortening the system startup time, improving the overall efficiency, and reducing the energy loss of the system.

[0040] As Figure 1 shown, in some embodiments of the present application, the battery 1 has a first heat exchange port 11 and a second heat exchange port 12. The low-temperature startup system 100 may further include a heat exchange device 5. The heat exchange device 5 can be respectively connected to the first heat exchange port 11 and the second heat exchange port 12, and the heat exchange device 5 can be used to exchange heat with the battery 1. The heat exchange device 5 can be used to dissipate heat or heat the battery 1. Since the heat exchange device 5 is respectively connected to the first heat exchange port 11 and the second heat exchange port 12, it helps to achieve the temperature balance inside the battery 1, reduce the performance difference caused by uneven temperature, and timely heat exchange can prevent the battery 1 from malfunctioning or causing a safety accident due to overheating. The heat exchange device 5 mainly exchanges heat with the battery 1 to achieve the cooling of the battery 1.

[0041] As Figure 1 shown, in some embodiments of the present application, the heat exchange device 5 includes a driving member, a liquid storage member 51, and a heat exchanger 52. The inlet end of the driving member can be connected to the first heat exchange port 11. Among them, the driving member can be configured as the pump component 4. The pump component 4 can provide power for the flow of the coolant inside the heat exchange device 5. The inlet end of the liquid storage member 51 can be connected to the outlet end of the pump component 4, and a cavity is formed inside the liquid storage member 51. The cavity can be used to store the coolant. The liquid storage member 51 can stabilize the pressure of the coolant inside the heat exchange device 5, and reduce the pressure fluctuation by storing the excess coolant. At the same time, the liquid storage member 51 can also play a role in balancing the coolant flow rate.

[0042] In a specific embodiment, the liquid storage member 51 can be configured as an overflow tank. The inlet end of the heat exchanger 52 can be communicated with the outlet end of the liquid storage member 51, and the outlet end of the heat exchanger 52 can be communicated with the second heat exchange port 12. When the coolant flows through the battery 1, heat exchange occurs between the coolant and the battery 1, thereby absorbing the heat of the battery 1. The high-temperature coolant after absorbing heat can be cooled when flowing through the heat exchanger 52, and the cooled coolant can continue to exchange heat with the battery 1, thereby realizing the circulation of the coolant. In a specific embodiment, the heat exchanger 52 can be configured as a radiator.

[0043] As Figure 1 shown, in some embodiments of the present application, the pump component 4 has a first inlet 41, a second inlet 42, a first outlet 43, and a second outlet 44. The first inlet 41 is selectively communicated with the outlet end of the battery 1, the first outlet 43 is communicated with the discharge device 3, the second inlet 42 is communicated with the first heat exchange port 11, and the second outlet 44 is communicated with the inlet end of the liquid storage member 51. The pump component 4 realizes the dual functions of draining water and circulating the coolant through different inlets and outlets. The combination of the first inlet 41 and the first outlet 43 is used for the draining function, while the combination of the second inlet 42 and the second outlet 44 is used for the coolant circulation function.

[0044] At the same time, the first inlet 41 is selectively communicated with the outlet end of the battery 1, and it can be selected whether the pump component 4 is communicated with the battery 1 outlet according to actual needs. This design enables a single pump component 4 to undertake multiple functions, reducing the number of pumps required in the system, thereby simplifying the system structure. Reducing the number of pump components 4 and simplifying the system structure helps to reduce the manufacturing cost and procurement cost. In some embodiments, the pump component 4 can be configured as two water pumps, and the two water pumps can be integrated into an integrated structure.

[0045] As Figure 1 shown, in some embodiments of the present application, the air supply device 2 includes an air filter 21, an air compressor 22, an intercooler 23, and a humidifier 24 connected in sequence. The outlet end of the humidifier 24 can be communicated with the inlet end of the battery 1 or can be disconnected from the inlet end of the battery 1.

[0046] The main function of the air filter 21 is to filter out impurities and dust in the air entering the system, including physical particulate matters and gases (such as nitric oxide, sulfur dioxide, etc.) that may be adsorbed and harmful to the proton exchange membrane. This can provide pure air for the fuel cell 1 and protect important components such as the air compressor and the fuel cell stack 1 from pollution and damage.

[0047] The air compressor 22 is connected after the air filter 21 and is responsible for pressurizing the filtered air. In the fuel cell 1 system, the air compressor 22 needs to supply air with sufficient flow rate to the fuel cell stack to ensure that the electrochemical reaction can proceed fully. It should be noted that the air compressor used in the fuel cell 1 needs to be completely oil-free to prevent poisoning of the fuel cell 1 catalyst and affect the output performance of the fuel cell 1. At the same time, the air compressor 22 also needs to have the characteristics of high flow rate and high pressure ratio to meet the requirements of the fuel cell 1 system.

[0048] After the air is pressurized by the air compressor 22, its temperature will rise sharply and may exceed the applicable temperature range of the fuel cell 1 stack. Therefore, it is necessary to cool the compressed air through the intercooler 23. The function of the intercooler 23 is to cool the high-temperature air to the temperature range suitable for entering the fuel cell 1 stack to ensure that the fuel cell 1 stack can operate efficiently and stably.

[0049] The humidifier 24 is located at the end of the air supply device 2, and its main function is to humidify the air cooled by the intercooler 23. In the fuel cell 1 system, the air needs to maintain a certain humidity to meet the requirements of the electrochemical reaction. The humidifier 24 humidifies the fresh compressed air by using the water generated after the reaction, so that the air entering the stack has an appropriate humidity. This can not only improve the performance and efficiency of the fuel cell 1, but also extend its service life.

[0050] The air filter 21, the air compressor 22, the intercooler 23 and the humidifier 24 are connected in sequence. These four devices each undertake the tasks of filtering, pressurizing, cooling and humidifying in the air supply system of the battery 1, and jointly provide high-quality reaction gas for the fuel cell 1 to improve the performance and efficiency of the battery 1. At the same time, the outlet end of the humidifier 24 can be selectively connected to the inlet end of the battery 1 to flexibly adjust different working conditions of the low-temperature starting system 100.

[0051] Such as Figure 1As shown, in some embodiments of the present application, the low-temperature starting system 100 further includes a first valve body 6, a second valve body 7, a third valve body 8, and a fourth valve body 9. The first valve body 6 can be disposed between the first inlet 41 of the pump component 4 and the outlet end of the battery 1, and the first valve body 6 can selectively connect or disconnect the first inlet 41 and the outlet end. The second valve body 7 can be disposed between the outlet end of the battery 1 and the discharge device 3, and the second valve body 7 can selectively connect or disconnect the outlet end of the battery 1 and the discharge device 3. The third valve body 8 can be disposed between the outlet end of the humidifier 24 and the inlet end of the battery 1, and the third valve body 8 can selectively connect or disconnect the outlet end of the humidifier 24 and the inlet end of the battery 1. One end of the fourth valve body 9 can be connected to the outlet end of the air filter 21, and the other end of the fourth valve body 9 can be connected to the inlet end of the battery 1. The fourth valve body 9 can selectively connect or disconnect the outlet end of the air filter 21 and the inlet end of the battery 1.

[0052] Thus, through different connection methods of the four valve bodies, the low-temperature starting system 100 is divided into two operating conditions:

[0053] As Figure 2 shown, the first operating mode is that the first valve body 6 is disconnected, the second valve body 7 is connected, the third valve body 8 is connected, and the fourth valve body 9 is disconnected. At this time, it is the normal operating condition of the battery 1. In this operating condition, after being filtered by the air filter 21, the external air is pressurized by the air compressor 22 and then enters the intercooler 23, and then enters the battery 1 after being humidified by the humidifier 24 to chemically react with hydrogen. The generated water is discharged into the external environment through the exhaust device. At the same time, in the heat exchange device 5, the inlet end of the pump component 4 can be connected to the first heat exchange port 11 of the battery 1. The pump component 4 pumps the coolant out of the liquid storage member 51. The inlet end of the liquid storage member 51 can be connected to the outlet end of the pump component 4 to send the pumped coolant back to the liquid storage member 51. The inlet end of the heat exchanger 52 can be connected to the outlet end of the liquid storage member 51 to send the coolant in the liquid storage device into the heat exchanger 52 to process the temperature of the coolant. The outlet end of the heat exchanger 52 can be connected to the second heat exchange port 12 to send the coolant into the battery 1 through the second heat exchanger 52, forming a complete closed loop, ensuring that the coolant can circulate continuously and efficiently, thereby improving the heat exchange efficiency.

[0054] As Figure 3As shown, the second working mode is that the first valve body 6 is connected, the second valve body 7 is disconnected, the third valve body 8 is disconnected, and the fourth valve body 9 is connected. At this time, it is the water removal condition of the battery 1. This condition operates after the fuel cell 1 stops running, that is, under the condition of the whole machine shutting down. The air filter is directly connected to the battery 1 to form a gas channel, preventing the pump component 4 from being unable to pump air due to air pressure. The first inlet 41 of the pump component 4 is connected to the outlet end of the battery 1, and is used to discharge the water and water vapor sucked by the pump component 4 into the external environment through the exhaust module, thereby completing the liquid guiding inside the battery 1 to the discharge device 3, thus avoiding the problem that the residual water in the battery 1 freezes in a low-temperature environment, resulting in a long low-temperature start-up time and start-up failure of the battery 1. At the same time, replacing the original heater can improve the overall efficiency of the whole machine and reduce system energy loss.

[0055] It should be noted that the first valve body 6, the second valve body 7, the third valve body 8, the fourth valve body 9 and the pump component 4 can all be controlled by the control unit 101, which simplifies the operation process. At the same time, the first valve body 6, the second valve body 7, the third valve body 8 and the fourth valve body 9 are preferably electromagnetic valves, which is convenient for the control unit 101 to conduct unified management and respond quickly.

[0056] This application also proposes a vehicle.

[0057] The vehicle according to the embodiment of the present application includes the low-temperature start-up system 100 for vehicles described in any of the above embodiments.

[0058] The vehicle according to the embodiment of the present application extracts the water generated by the electrochemical reaction inside the battery 1 through the pump component 4, and guides the water inside the battery 1 to the discharge device 3, so as to avoid the residual water in the battery 1 from freezing in a low-temperature environment, thereby shortening the system start-up time, improving the overall efficiency, reducing the energy loss of the system, and improving the vehicle performance.

[0059] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0060] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0061] In the description of the present application, the meaning of "a plurality" is two or more.

[0062] In the description of the present application, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, or may include contact between the first and second features through additional features therebetween rather than direct contact.

[0063] In the description of the present application, a first feature being "on", "above", or "over" a second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature.

[0064] In the description of this specification, descriptions with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean 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 this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] 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, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A low-temperature starting system (100) for a vehicle, characterized in that, Comprising: A battery (1); An air supply device (2), the air supply device (2) being in communication with the inlet end of the battery (1) and adapted to supply gas to the battery (1); A discharge device (3), the discharge device (3) being in communication with the outlet end of the battery (1) and adapted to discharge the liquid generated during the operation of the battery (1) to the outside; A pump component (4), the pump component (4) selectively connecting the battery (1) and the discharge device (3) to extract the liquid inside the battery (1) and direct it to the discharge device (3).

2. The low-temperature starting system (100) for a vehicle according to claim 1, characterized in that, The battery (1) has a first heat exchange port (11) and a second heat exchange port (12), and the low-temperature start-up system (100) further comprises: A heat exchange device (5), the heat exchange device (5) being in communication with the first heat exchange port (11) and the second heat exchange port (12) respectively and adapted to exchange heat with the battery (1).

3. The low-temperature starting system (100) for a vehicle according to claim 2, characterized in that, The heat exchange device (5) comprises: A driving member, the inlet end of the driving member being in communication with the first heat exchange port (11); A liquid storage member (51), the inlet end of the liquid storage member (51) being in communication with the outlet end of the driving member, and a cavity adapted to store a coolant being formed inside the liquid storage member (51); A heat exchanger (52), the inlet end of the heat exchanger (52) being in communication with the outlet end of the liquid storage member (51), and the outlet end of the heat exchanger (52) being in communication with the second heat exchange port (12); wherein The driving member is configured as the pump component (4).

4. The low-temperature starting system (100) for a vehicle according to claim 3, characterized in that, The pump component (4) has a first inlet (41), a second inlet (42), a first outlet (43) and a second outlet (44), the first inlet (41) selectively communicating with the outlet end of the battery (1), and the first outlet (43) communicating with the discharge device (3); The second inlet (42) communicates with the first heat exchange port (11), and the second outlet (44) communicates with the inlet end of the liquid storage member (51).

5. The low-temperature starting system (100) for a vehicle according to claim 4, characterized in that, Further comprising: A first valve body (6), the first valve body (6) being disposed between the first inlet (41) of the pump component (4) and the outlet end of the battery (1) and selectively connecting or disconnecting the first inlet (41) and the outlet end.

6. The low-temperature starting system (100) for a vehicle according to claim 4, characterized in that, Further comprising: A second valve body (7), the second valve body (7) being disposed between the outlet end of the battery (1) and the discharge device (3) and selectively connecting or disconnecting the outlet end of the battery (1) and the discharge device (3).

7. The low-temperature starting system (100) for a vehicle according to claim 1, characterized in that, The air supply device (2) comprises an air filter (21), an air compressor (22), an intercooler (23) and a humidifier (24) connected in sequence, and the outlet end of the humidifier (24) selectively communicates with the inlet end of the battery (1).

8. The low-temperature starting system (100) for a vehicle according to claim 7, characterized in that, Further comprising: A third valve body (8), the third valve body (8) being disposed between the outlet end of the humidifier (24) and the inlet end of the battery (1) and selectively connecting or disconnecting the outlet end of the humidifier (24) and the inlet end of the battery (1).

9. The low-temperature starting system (100) for a vehicle according to claim 8, characterized in that, Further comprising: Fourth valve body (9), one end of the fourth valve body (9) is communicated with the outlet end of the air filter (21), the other end of the fourth valve body (9) is communicated with the inlet end of the battery (1), and the fourth valve body (9) selectively communicates or disconnects the outlet end of the air filter (21) and the inlet end of the battery (1).

10. A vehicle, characterized in that, Comprising a low-temperature starting system (100) for a vehicle according to any one of claims 1-9.

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