Defrosting systems and vehicles

Abstract

This invention relates to a defrosting system and a vehicle. The defrosting system includes: a storage device for storing defrosting agent; a heating unit, the inlet of which is connected to the outlet of the storage device, for heating the defrosting agent; a driving component located in the fluid path of the defrosting agent flowing into or out of the storage device, for driving the defrosting agent to flow out or back into the storage device; a spraying unit connected to the heating unit, for spraying the heated defrosting agent onto the windshield; and a switching unit including a first switching device, a second switching device, and a third switching device. The defrosting system, by using the heating unit to heat the defrosting agent to increase its temperature and thus improve its defrosting efficiency, and by using the switching unit to change the connection relationship between the storage device, the heating unit, the driving component, and the spraying unit, thereby changing the flow path of the defrosting agent, the defrosting system can meet different usage needs and save energy.

Description

Technical Field

[0001] This invention relates to the field of defrosting equipment for vehicle windshields, and in particular to a defrosting system and vehicle. Background Technology

[0002] In winter, due to the low temperature, the windshields of vehicles are prone to frost, which can affect the driver's vision. Therefore, all vehicles are equipped with defrosting equipment.

[0003] In related technologies, defrosting equipment is mostly electric heating defrosting mechanism, air heating defrosting mechanism or mechanical defrosting mechanism. All of these defrosting mechanisms have the problems of low defrosting efficiency and large energy consumption. Summary of the Invention

[0004] Therefore, it is necessary to provide a defrosting system and vehicle that can both improve defrosting efficiency and save energy.

[0005] According to one aspect of this application, a defrosting system for a vehicle windshield is provided, the defrosting system comprising:

[0006] Storage device for storing defrosting agent;

[0007] A heating unit, the inlet of which is connected to the outlet of the storage device, is used to heat the defrosting agent;

[0008] A driving element, located in the fluid path of the defrosting agent flowing into or out of the storage device, is used to drive the defrosting agent to flow out or back into the storage device;

[0009] A spray unit, connected to the heating unit, is used to spray heated defrosting agent onto the windshield; and

[0010] The switching unit includes a first switching device, a second switching device, and a third switching device; the first switching device is configured to connect or disconnect the inlet of the drive unit and the outlet of the storage device or the inlet of the spray unit; the second switching device is configured to connect or disconnect the outlet of the heating unit and the inlet of the spray unit or the first inlet of the storage device, the inlet of the spray unit, and the inlet of the drive unit; the third switching device is configured to connect or disconnect the outlet of the drive unit and the second inlet of the storage device.

[0011] The aforementioned defrosting system improves defrosting efficiency by heating the defrosting agent with a heating unit to increase its temperature; it also improves efficiency by driving the defrosting agent to flow out or back to the storage device; a spray unit sprays the defrosting agent onto the windshield to remove frost; and a switching unit, including a first, second, and third switching device, alters the connection between the storage device, heating unit, driving unit, and spray unit, thereby changing the flow path of the defrosting agent. This allows the defrosting system to meet different usage needs and save energy. Furthermore, the defrosting system of this application saves energy by removing frost from the windshield using the defrosting agent.

[0012] In one embodiment, the defrosting system has a spray state, a standby state, and a recirculation state;

[0013] In the spraying state, the first switching device is configured to connect the inlet of the driving member and the outlet of the storage device, and the second switching device is configured to connect the outlet of the heating unit and the inlet of the spraying unit, and the driving member drives the defrosting agent to flow out of the storage device.

[0014] In the standby state, the first switching device is configured to connect the inlet of the driving member and the outlet of the storage device, and the second switching device is configured to connect the outlet of the heating unit and the first inlet of the storage device, and the driving member drives the defrosting agent to flow out of the storage device.

[0015] In the reflux state, both the first switching device and the second switching device are configured to connect the inlet of the drive unit and the inlet of the spray unit, and the third switching device is configured to connect the outlet of the drive unit and the second inlet of the storage device, and the drive unit drives the defrosting agent to reflux back to the storage device.

[0016] In one embodiment, the first switching device includes a first conductive element and a second conductive element;

[0017] The first conductive element is disposed between the outlet of the storage device and the inlet of the drive element, and is used to control the connection and disconnection of the storage device and the drive element;

[0018] The second conductive element is located between the first inlet of the storage device and the outlet of the storage device, and is used to control the connection and disconnection of the spray unit and the drive element.

[0019] In one embodiment, the second switching device includes a third conductor and a fourth conductor;

[0020] The third conductive element is located between the outlet of the heating unit and the inlet of the spray unit, and is used to control the connection and disconnection of the heating unit and the spray unit;

[0021] The fourth conductive element is located between the first inlet of the storage device and the outlet of the heating unit, and is used to control the connection and disconnection of the storage device and the heating unit.

[0022] In one embodiment, the storage device is further provided with a viewing window for observing the liquid level within the storage device.

[0023] In one embodiment, the viewing window is made of a transparent or semi-transparent material.

[0024] In one embodiment, the spray unit includes a nozzle and a spray pipe;

[0025] One end of the spray pipe is connected to the outlet of the heating unit;

[0026] One end of the nozzle is connected to the spray pipe, and the other end faces the front windshield.

[0027] In one embodiment, there are multiple nozzles, all of which are spaced apart along the extension direction of the spray pipe; one end of each nozzle is connected to the spray pipe, and the other end faces the windshield.

[0028] In one embodiment, the spray unit further includes a first control element located at one end of the spray pipe away from the heating unit, for controlling the air pressure in the spray pipe.

[0029] According to another aspect of this application, this application also provides a vehicle including a windshield and a defrosting system as described in any of the above embodiments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the defrosting system from one angle in one embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the defrosting system from another angle in one embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of the storage device and the driving component in one embodiment of this application;

[0033] Figure 4 This is a schematic diagram showing the flow of defrosting agent when the defrosting system of this application is in spray mode;

[0034] Figure 5This is a schematic diagram showing the flow of defrosting agent when the defrosting system of this application is in standby mode;

[0035] Figure 6 This is a schematic diagram of the flow of defrosting agent when the defrosting system of this application is in a reflux state.

[0036] Explanation of icon numbers:

[0037] 10. Defrosting system; 11. Storage device; 111. Device body; 112. Cover; 113. Viewing window; 12. Drive unit; 13. Heating unit; 131. Mounting bracket; 132. Heat exchanger; 133. Air conditioner; 14. Spray unit; 141. Spray nozzle; 142. Spray pipeline; 15. First switching device; 151. First conductive element; 152. Second conductive element; 16. Second switching device; 161. Third conductive element; 162. Fourth conductive element; 17. Third switching device; 21. Front windshield; 22. Windshield wiper;

[0038] Entrances: a1, a2, a3, a4, a5; Exits: b1, b2, b3, b4, b5.

[0039] It should be noted that the inlets a1, a2, a3, a4, and a5 mentioned above refer to the first inlet of the storage device, the second inlet of the storage device, the inlet of the heating unit, the inlet of the driving component, and the inlet of the spray unit, respectively; and the outlets b1, b2, b3, and b4 mentioned above refer to the outlets of the storage device, the heating unit, the driving component, and the spray unit, respectively. Detailed Implementation

[0040] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, 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 invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] In related technologies, defrosting equipment is mostly composed of electric heating defrosting mechanisms, air heating defrosting mechanisms, or mechanical defrosting mechanisms. Electric heating defrosting mechanisms require the implantation of heating wires on the inside of the windshield or the use of screen-printed conductive ink, which affects the overall light transmittance and aesthetics of the windshield. Furthermore, they require electric heating, consuming vehicle power, which puts a significant burden on the battery in winter when its performance is poor. Using the engine to generate electricity at idle speed results in high fuel consumption and overall high energy consumption. Air heating equipment requires air circulation from the vehicle's air conditioning system to heat the windshield for defrosting, resulting in low defrosting efficiency, long start-up time, and high energy consumption. It also suffers from energy consumption issues and requires specialized design for the air conditioning ducts, leading to a certain amount of airflow loss during normal operation. Mechanical defrosting mechanisms use mechanical force to scrape the windshield, causing significant damage. Moreover, the mechanical structure is difficult to operate in cold conditions, easily damaging the windshield.

[0047] To address at least one of the aforementioned problems, this application provides a defrosting system and a vehicle.

[0048] Figure 1 This is a schematic diagram of the defrosting system from one angle in one embodiment of this application; Figure 2 This is a schematic diagram of the defrosting system from another angle in one embodiment of this application; Figure 3 This is a schematic diagram of the structure of the storage device and the driving component in one embodiment of this application.

[0049] See Figure 1 and Figure 2 This application provides a defrosting system 10 for a vehicle's windshield 21. The vehicle includes a windshield 21, and the defrosting system 10 includes a storage device 11, a heating unit 13, a drive unit 12, a spray unit 14, and a switching unit. The storage device 11 stores defrosting agent, the heating unit 13 heats the defrosting agent, the drive unit 12 drives the defrosting agent to flow out of or back to the storage device 11, the spray unit 14 sprays the heated defrosting agent onto the windshield 21, and the switching unit switches the flow path of the defrosting agent.

[0050] Thus, by setting up a heating unit 13 to heat the defrosting agent, the temperature of the defrosting agent is increased, thereby improving the defrosting efficiency; by setting up a driving component 12, the defrosting agent is driven to flow out or back to the storage device 11; by setting up a spraying unit 14, the defrosting agent is sprayed onto the windshield 21 to remove frost from the windshield 21, improving defrosting efficiency; by setting up a switching unit, which includes a first switching device 15, a second switching device 16, and a third switching device 17, the connection relationship between the storage device 11, the heating unit 13, the driving component 12, and the spraying unit 14 is changed, thereby changing the flow path of the defrosting agent. This allows the defrosting system 10 to meet different usage needs and save energy. Furthermore, the defrosting system 10 of this application uses a defrosting agent for defrosting, which saves energy.

[0051] See Figures 1 to 3 The storage device 11 includes a device body 111 and a cover 112. The device body 111 has a receiving cavity (not shown in the figure) in which the defrosting agent is contained. The device body 111 also has a first inlet a1, a second inlet a2, and an outlet b1 communicating with the receiving cavity to facilitate the flow of the defrosting agent. The cover 112 is disposed on the device body 111 to seal the device body 111, and opening the cover 112 allows the addition of defrosting agent into the receiving cavity, making operation simple.

[0052] In some embodiments, the first inlet a1 and outlet b1 of the storage body are respectively provided with a second control element and a third control element (not shown in the figure). The first inlet a1 of the storage body is configured to open or close in response to a control signal received by the second control element, and the outlet b1 of the storage body is configured to open or close in response to a control signal received by the third control element.

[0053] In some embodiments, the storage device 11 is further provided with a viewing window 113 for observing the liquid level inside the storage device 11. Optionally, the viewing window 113 is made of a transparent or translucent material.

[0054] Thus, by providing a viewing window 113, the liquid level in the storage chamber of the storage device 11 can be observed, thereby allowing defrosting agent to be added to the storage chamber in a timely manner.

[0055] See Figures 1 to 3 The inlet a3 of the heating unit 13 is connected to the outlet b1 of the storage device 11 for heating the defrosting agent. Optionally, the heating unit 13 and the storage device 11 are connected by a pipe.

[0056] In some embodiments, the inlet a3 and outlet b2 of the heating unit 13 are respectively provided with a fourth control element and a fifth control element (not shown in the figure). The inlet a3 of the heating unit 13 is configured to be turned on or off in response to a control signal received by the fourth control element, and the outlet b2 of the heating unit 13 is configured to be turned on or off in response to a control signal received by the fifth control element.

[0057] In some embodiments, the heating unit 13 includes a mounting frame 131, a plurality of heat exchange elements 132 spaced apart from the mounting frame 131, and an air conditioner 133 disposed on one side of the mounting frame 131. The inlet a3 and outlet b2 of the heating unit 13 are respectively disposed on opposite sides of the mounting frame 131. The heat exchange elements 132 are provided with heat exchange channels (not shown in the figure) that communicate with both the inlet a3 and outlet b2 of the heating unit 13, so that the defrosting agent exchanges heat with the heat exchange elements 132 when passing through the heat exchange channels, thereby increasing the temperature of the defrosting agent. The hot air from the air conditioner 133 can also heat the defrosting agent. Thus, by setting the heating unit 13 to heat the defrosting agent, the temperature of the defrosting agent can be increased, which is beneficial to improving the defrosting effect and defrosting efficiency.

[0058] It should be noted that the specific composition of the heating unit 13 is not limited to the above description in this application. The heating unit 13 only needs to provide a defrost agent flow path and be able to heat the defrost agent, such as heating the defrost agent through an electric heating wire or heating the defrost agent through engine water temperature. No further limitations are made here, and it can be set as needed.

[0059] See Figures 1 to 3 The drive unit 12 is located in the fluid path of the defrost agent flowing into or out of the storage device 11, and is used to drive the defrost agent to flow out or back into the storage device 11. That is, the drive unit 12 is located between the storage device 11 and the heating unit 13. Optionally, the storage device 11 and the drive unit 12 are connected by a pipe, and the drive unit 12 and the heating unit 13 are connected by a pipe; the drive unit 12 is a pump body, specifically a water pump or other pump body that can meet the usage requirements.

[0060] See Figures 1 to 3 The spray unit 14 is connected to the heating unit 13, and the spray unit 14 is used to spray the heated defrost agent onto the windshield 21. Optionally, the spray unit 14 and the heating unit 13 are connected by a pipe.

[0061] In some embodiments, the spray unit 14 includes a nozzle 141 and a spray pipe 142. One end of the spray pipe 142 is connected to the outlet b2 of the heating unit 13, and one end of the nozzle 141 is connected to the spray pipe 142, with the other end facing the front windshield 21. The spray pipe 142 and the heating unit 13 are connected by a pipe.

[0062] In some embodiments, multiple nozzles 141 are provided, and all nozzles 141 are spaced apart along the extension direction of the spray pipe 142. One end of each nozzle 141 is connected to the spray pipe 142, and the other end faces the front window 21.

[0063] Thus, by installing multiple nozzles 141 in the spray pipe 142 to spray the defrosting agent onto the windshield 21, spraying time can be saved and defrosting efficiency can be improved.

[0064] In some embodiments, the spray unit 14 further includes a first control element (not shown in the figure), which is located at the end of the spray pipe 142 away from the heating unit 13, and is used to control the air pressure within the spray pipe 142. The first control element is configured to allow outside air to enter and exit the defrosting system 10, while preventing defrosting agent from flowing out of the first control element. It should be noted that the first control element can be opened or closed in response to a received control signal, thereby connecting or disconnecting the spray pipe 142 from the outside atmosphere, thus controlling the air pressure within the spray pipe 142 to ensure the defrosting system 10 meets operational requirements.

[0065] Figure 4 This is a schematic diagram showing the flow of defrosting agent when the defrosting system of this application is in spray mode; Figure 5 This is a schematic diagram showing the flow of defrosting agent when the defrosting system of this application is in standby mode; Figure 6 This is a schematic diagram of the flow of defrosting agent when the defrosting system of this application is in a reflux state. Figures 4 to 6 The arrows in the diagram indicate the flow direction of the defrosting agent under different conditions.

[0066] See Figures 4 to 6 The switching unit includes a first switching device 15, a second switching device 16, and a third switching device 17. The first switching device 15 is configured to connect or disconnect the inlet a4 of the drive unit 12 and the outlet b1 of the storage device 11 or the inlet a5 of the spray unit 14; the second switching device 16 is configured to connect or disconnect the outlet b2 of the heating unit 13 and the inlet a5 of the spray unit 14 or the first inlet a1 of the storage device 11, the inlet a5 of the spray unit 14, and the inlet a4 of the drive unit 12; the third switching device 17 is configured to connect or disconnect the outlet b3 of the drive unit 12 and the second inlet a2 of the storage device 11.

[0067] The defrosting system 10 has a spray state, a standby state, and a recirculation state. In the spray state, the first switching device 15 is configured to connect the inlet a4 of the drive unit 12 and the outlet b1 of the storage device 11, and the second switching device 16 is configured to connect the outlet b2 of the heating unit 13 and the inlet a5 of the spray unit 14. The drive unit 12 drives the defrosting agent to flow out of the storage device 11, that is, the outlet b1 of the storage device 11 is opened, and the pump body can drive the defrosting agent to flow out of the storage device 11, and flow through the water pump, the heating unit 13 and the spray unit 14 in sequence, and spray it onto the windshield 21 from the spray unit 14. In standby mode, the first switching device 15 is configured to connect the inlet a4 of the drive unit 12 and the outlet b1 of the storage device 11, and the second switching device 16 is configured to connect the outlet b2 of the heating unit 13 and the first inlet a1 of the storage device 11. The drive unit 12 drives the defrost agent to flow out of the storage device 11. That is, both the outlet b1 and the first inlet a1 of the storage device 11 are open, and the pump body can drive the defrost agent to flow out of the storage device 11 and circulate through the water pump, the heating unit 13 and the storage device 11. In the reflux state, both the first switching device 15 and the second switching device 16 are configured to connect the inlet a4 of the drive member 12 and the inlet a5 of the spray unit 14, and the third switching device 17 is configured to connect the outlet b3 of the drive member 12 and the second inlet a2 of the storage device 11. The drive member 12 drives the defrosting agent to flow back to the storage device 11. That is, the outlet b1 and the first inlet a1 of the storage device 11 are both closed, and the pump body can drive the defrosting agent in the spray unit 14 to flow back to the water pump and flow back to the storage device 11 from the second inlet a2 of the storage device 11.

[0068] The inlet a5 of the spray unit 14 is the end of the spray pipe 142 that connects to the heating unit 13, and the outlet b4 of the spray unit 14 is the channel of the nozzle 141 that sprays defrost agent out of the front window 21 (not shown in the figure).

[0069] It should be noted that in the spraying state and standby state, the first control unit closes in response to the received control signal. Since the pump can drive the defrosting agent to flow out of the storage device 11, the defrosting agent can be circulated as needed by switching the switching unit. In the return state, the first control unit opens in response to the received control signal. Since both the first inlet a1 and outlet b1 of the storage device 11 are closed, the opening of the drive unit 12 causes the pressure inside the defrosting system 10 to be lower than the external atmospheric pressure, thereby causing the external atmosphere and the defrosting agent inside the defrosting system 10 to flow back towards the drive unit 12. The defrosting agent can be returned to the storage device 11 by switching the switching unit.

[0070] In some embodiments, the first switching device 15 includes a first conductive element 151 and a second conductive element 152. The first conductive element 151 is disposed between the outlet b1 of the storage device 11 and the inlet a4 of the drive element 12, and is used to control the connection and disconnection of the storage device 11 and the drive element 12; the second conductive element 152 is disposed between the first inlet a1 of the storage device 11 and the outlet b1 of the storage device 11, and is used to control the connection and disconnection of the spray unit 14 and the drive element 12.

[0071] In some embodiments, the second switching device 16 includes a third conductor 161 and a fourth conductor 162. The third conductor 161 is disposed between the outlet b2 of the heating unit 13 and the inlet a5 of the spray unit 14, and is used to control the connection and disconnection of the heating unit 13 and the spray unit 14; the fourth conductor 162 is disposed between the first inlet a1 of the storage device 11 and the outlet b2 of the heating unit 13, and is used to control the connection and disconnection of the storage device 11 and the heating unit 13.

[0072] In some embodiments, a third switching device 17 is disposed between the outlet b3 of the drive member 12 and the second inlet a2 of the storage device 11, for controlling the connection and disconnection of the storage device 11 and the drive member 12.

[0073] In the spraying state, the first conductive element 151 and the third conductive element 161 are both connected, while the second conductive element 152, the fourth conductive element 162 and the third switching device 17 are all disconnected.

[0074] In standby mode, the first conductive element 151 and the fourth conductive element 162 are both connected, while the second conductive element 152, the third conductive element 161 and the third switching device 17 are all disconnected.

[0075] In the recirculation state, the first conductive element 151, the second conductive element 152, the third conductive element 161, the fourth conductive element 162 and the third switching device 17 are all connected.

[0076] It should be noted that in this application, both the control element and the connecting element are solenoid valves, and the first switching device 15 and the second switching device 16 can also be three-way solenoid valves, which can be selected as needed. It is understood that the function of the control element is to control the opening and closing of the inlet or outlet, and the function of the connecting element is to control the connection and disconnection of the pipeline. Other structures or components that can meet the requirements are also used to replace the control element and / or connecting element in this application, and are not further limited here.

[0077] This application also provides a vehicle including a windshield 21 and a defrosting system 10 as described in any of the above embodiments.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A defrosting system for the windshield of a vehicle, characterized in that, The defrosting system includes: Storage device for storing defrosting agent; A heating unit, the inlet of which is connected to the outlet of the storage device, is used to heat the defrosting agent; A driving element, located in the fluid path of the defrosting agent flowing into or out of the storage device, is used to drive the defrosting agent to flow out or back into the storage device; A spray unit, connected to the heating unit, is used to spray heated defrosting agent onto the windshield; and The switching unit includes a first switching device, a second switching device, and a third switching device; the first switching device is configured to connect or disconnect the inlet of the drive unit and the outlet of the storage device or the inlet of the spray unit; the second switching device is configured to connect or disconnect the outlet of the heating unit and the inlet of the spray unit or the first inlet of the storage device, the inlet of the spray unit, and the inlet of the drive unit; the third switching device is configured to connect or disconnect the outlet of the drive unit and the second inlet of the storage device. The defrosting system has a spray state, a standby state, and a reflux state. In the spraying state, the first switching device is configured to connect the inlet of the driving member and the outlet of the storage device, and the second switching device is configured to connect the outlet of the heating unit and the inlet of the spraying unit, and the driving member drives the defrosting agent to flow out of the storage device. In the standby state, the first switching device is configured to connect the inlet of the driving member and the outlet of the storage device, and the second switching device is configured to connect the outlet of the heating unit and the first inlet of the storage device, and the driving member drives the defrosting agent to flow out of the storage device. In the reflux state, both the first switching device and the second switching device are configured to connect the inlet of the drive unit and the inlet of the spray unit, and the third switching device is configured to connect the outlet of the drive unit and the second inlet of the storage device, and the drive unit drives the defrosting agent to reflux back to the storage device.

2. The defrosting system according to claim 1, characterized in that, The first switching device includes a first conductive element and a second conductive element; The first conductive element is disposed between the outlet of the storage device and the inlet of the drive element, and is used to control the connection and disconnection of the storage device and the drive element; The second conductive element is located between the first inlet of the storage device and the outlet of the storage device, and is used to control the connection and disconnection of the spray unit and the drive element.

3. The defrosting system according to claim 1, characterized in that, The second switching device includes a third conductive element and a fourth conductive element; The third conductive element is located between the outlet of the heating unit and the inlet of the spray unit, and is used to control the connection and disconnection of the heating unit and the spray unit; The fourth conductive element is located between the first inlet of the storage device and the outlet of the heating unit, and is used to control the connection and disconnection of the storage device and the heating unit.

4. The defrosting system according to any one of claims 1-3, characterized in that, The storage device is also provided with a viewing window for observing the liquid level inside the storage device.

5. The defrosting system according to claim 4, characterized in that, The viewing window is made of a transparent or semi-transparent material.

6. The defrosting system according to any one of claims 1-3, characterized in that, The spray unit includes a spray head and a spray pipeline; One end of the spray pipe is connected to the outlet of the heating unit; One end of the nozzle is connected to the spray pipe, and the other end faces the front windshield.

7. The defrosting system according to claim 6, characterized in that, The spray nozzles are provided in multiples, and all the spray nozzles are spaced apart along the extension direction of the spray pipe; one end of each spray nozzle is connected to the spray pipe, and the other end faces the front windshield.

8. The defrosting system according to claim 6, characterized in that, The spray unit also includes a first control element, which is located at the end of the spray pipe away from the heating unit, and is used to control the air pressure in the spray pipe.

9. A vehicle, characterized in that, Includes the windshield and the defrosting system as described in any one of claims 1-8.

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