Fireproof and explosion-proof system based on two-wheeled vehicle battery replacement cabinet and working method

Abstract

The invention relates to the technical field of battery replacement cabinet safety, and discloses a fire-proof and explosion-proof system based on a two-wheeled vehicle battery replacement cabinet and a working method.The fire-proof and explosion-proof system based on the two-wheeled vehicle battery replacement cabinet comprises a sealing mechanism, and the sealing mechanism comprises a first linear driving assembly and a telescopic sealing assembly; the one-way pressure relief mechanism comprises a pressure relief pipe and a non-return mechanism; an energy consumption type cooling mechanism is connected between the pressure relief pipe and the non-return mechanism; the energy consumption type cooling mechanism comprises a combined pipeline, an energy consumption type rotating assembly, a circulating pump liquid cooling assembly and a reciprocating movement assembly; the sealing mechanism can automatically block all the vent holes in the charging bin, so that a sealed space is formed in the charging bin, high-temperature waste gas discharged from the pressure relief pipe is subjected to energy consumption and cooling through the energy consumption type cooling mechanism, and then the high-temperature waste gas is discharged to the outside through the filtering module; therefore, high-temperature and high-flow-rate waste gas is prevented from being directly discharged to influence electronic components in the battery changing cabinet and / or the outside world.

Description

Technical Field

[0001] This invention relates to the field of battery swapping cabinet safety technology, and more specifically, to a fireproof and explosion-proof system and its operating method based on a two-wheeled vehicle battery swapping cabinet. Background Technology

[0002] The intelligent battery swapping cabinet aims to solve the problems of slow charging and charging safety of low-speed electric vehicle batteries, and to solve the transportation capacity problem for high-frequency users of electric vehicles such as food delivery drivers. It can communicate with the battery in real time throughout the process, provide fast charging solutions for the battery, and monitor real-time data of current, voltage, power and the surrounding environment during the charging process.

[0003] The smart battery swapping cabinet resembles a locker in appearance. Inside, there are multiple battery compartments, each used to store and charge a battery. Users can interact with the cabinet and control the opening and closing of the cabinet door to swap batteries.

[0004] Currently, there are air-cooled, liquid-cooled, and combined cooling systems for battery swapping cabinets. However, liquid cooling is more expensive and carries the risk of leakage. Therefore, battery swapping cabinets using air cooling still occupy a large market share. If a battery in an air-cooled battery swapping cabinet experiences a fire or explosion, it can cause significant damage to the entire battery swapping cabinet and its surrounding environment, and may even result in personal injury or death. Summary of the Invention

[0005] The purpose of this invention is to provide a fireproof and explosion-proof system and its operating method based on a battery swapping cabinet for two-wheeled vehicles in order to solve the above-mentioned problems.

[0006] This invention provides a fireproof and explosion-proof system based on a battery swapping cabinet for two-wheeled vehicles, comprising: A sealing mechanism, comprising a linear drive assembly and a telescopic sealing assembly disposed on the linear drive assembly, wherein the linear drive assembly is used to adjust the telescopic state of the telescopic sealing assembly, and when the telescopic sealing assembly is in the extended state, it is used to cover all heat dissipation holes on the surface of the charging compartment. A one-way pressure relief mechanism includes a pressure relief pipe connected to a telescopic sealing assembly and a check mechanism connected to the output end of the pressure relief pipe. The check mechanism is connected to the internal space of the charging compartment through the pressure relief pipe and is used to control the exhaust gas generated inside the charging compartment to be discharged in only one direction.

[0007] As a further optimization of the present invention, an energy-consuming cooling mechanism is connected between the pressure relief pipe and the check valve mechanism. The energy-consuming cooling mechanism includes a combined pipe connected between the pressure relief pipe and the check valve mechanism, an energy-consuming rotating component disposed inside the combined pipe, a circulating pump liquid cooling component fixedly connected to the inner wall of the combined pipe, and a reciprocating moving component connected between the movable end of the circulating pump liquid cooling component and the energy-consuming rotating component. The energy-consuming rotating component is used to drive the reciprocating moving component to move back and forth along the central axis of the combined pipe, and the circulating pump liquid cooling component is used to pump in and out coolant.

[0008] As a further optimization of the present invention, the combined pipeline includes a reducing pipe and a connecting pipe connected to the output end of the reducing pipe. The diameter of the reducing pipe is larger than the diameter of the pressure relief pipe, and the diameter of the connecting pipe is the same as the diameter of the pressure relief pipe.

[0009] As a further optimization of the present invention, the energy-consuming rotating assembly includes a limiting bearing fixedly connected to an inner circular surface of a connecting pipe, a rotating shaft movably connected to the limiting bearing, and a fan blade fixedly connected to the rotating shaft, wherein the fan blade is located on the rotating shaft near the pressure relief pipe.

[0010] As a further optimization of the present invention, the circulating pump liquid cooling assembly includes a fixed ring body fixedly connected to the outer circular surface of a connecting pipe, a movable ring body coaxially arranged with the fixed ring body, a telescopic pipe I and a telescopic pipe II connected between the fixed ring body and the movable ring body, a plurality of guide pipe I connected between the fixed ring body and the variable diameter pipe, and a plurality of guide pipe II connected to the variable diameter pipe. The fixed ring body is provided with a plurality of guide holes I, which are respectively connected to the corresponding guide pipe I. The variable diameter pipe is provided with a plurality of guide holes II, which are connected to the corresponding guide pipe II through the guide holes II. A portion of the inner wall of the guide holes I is provided with a unidirectional guide component I, and another portion of the inner wall of the guide holes I is provided with a unidirectional guide component II. A pump liquid chamber is formed between the fixed ring body, the movable ring body, the telescopic pipe I, and the telescopic pipe II. The unidirectional flow guide assembly includes a blocking plate fixedly connected to the inner wall of the flow guide hole, a plurality of channels provided on the blocking plate, and a plastic sheet connected to the end face of the blocking plate located in the pump liquid chamber. The plastic sheet is fixedly connected to the blocking plate only on one side, and the plastic sheet covers the plurality of channels. The unidirectional flow guide assembly 2 includes a blocking plate 2 fixedly connected to the inner wall of the flow guide hole 1, a plurality of channels 2 provided on the blocking plate 2, and a plastic sheet 2 connected to the end face of the blocking plate 1 located inside the flow guide hole 1. The plastic sheet 2 is fixedly connected to the blocking plate 2 only on one side, and the plastic sheet 2 covers the plurality of channels 2.

[0011] As a further optimization of the present invention, the reciprocating moving component includes a reciprocating threaded groove provided on the rotating shaft and a slider sleeved on the rotating shaft. The slider is configured to cooperate with the reciprocating threaded groove, and the slider is fixedly connected to the moving ring.

[0012] As a further optimization of the present invention, the linear drive assembly includes a first fixed frame plate, a second fixed frame plate, a guide rod fixedly connected between the first fixed frame plate and the second fixed frame plate, a screw rod movably connected between the first fixed frame plate and the second fixed frame plate, and a motor fixedly connected to the second fixed frame plate. The output shaft end of the motor is connected to the screw rod. The guide rod and the screw rod are symmetrically arranged. The first fixed frame plate and the second fixed frame plate are both fixedly connected to the outer wall of the charging compartment.

[0013] As a further optimization of the present invention, the telescopic sealing assembly includes a telescopic cover and a movable frame plate connected to one end of the telescopic cover. The movable frame plate is provided with through holes and screw holes that respectively cooperate with the guide rod and the screw. The other end of the telescopic cover is fixedly connected to a fixed frame plate. Both the telescopic cover and the movable frame plate are in contact with the outer wall of the charging compartment, and the contact area is provided with a sealing element. The input end of the pressure relief pipe is connected to the telescopic cover. When the telescopic cover is in the extended state, the pressure relief pipe is connected to the internal space of the charging compartment.

[0014] As a further optimization of the present invention, the anti-reverse mechanism includes a second connecting pipe, a limiting ring and a limiting rod fixedly connected to the inner wall of the second connecting pipe, a limiting plate fixedly connected to the limiting rod, a plug slidably connected to the limiting plate, and a spring fixedly connected between the plug and the limiting plate. The plug is configured to cooperate with the limiting ring, and the second connecting pipe is connected to the first connecting pipe.

[0015] A working method for a fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet, employing the aforementioned fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet, includes the following steps: Step 100: Real-time acquisition of internal temperature data of the charging compartment. When the internal temperature of the charging compartment exceeds the threshold, the telescopic sealing component is extended by the linear drive component and covers all heat dissipation holes on the charging compartment, so that the charging compartment is in a completely sealed state. Step 200: When the battery burns and generates exhaust gas in the charging compartment, the high-pressure, high-temperature exhaust gas is guided into the combined pipe through the pressure relief pipe. The high-pressure, high-temperature exhaust gas drives the energy-consuming rotating component to rotate in the combined pipe. During the rotation, the energy-consuming rotating component drives the circulating pump liquid cooling component to perform reciprocating extension and retraction motion through the cooperating reciprocating moving component. When the circulating pump liquid cooling component is in the extended state, it is used to pump in external coolant and exchange heat with the high-temperature exhaust gas in the combined pipe. When the circulating pump liquid cooling component is in the contracted state, it is used to pump out the heat-exchanged coolant. Step 300: The exhaust gas flowing through the energy-consuming rotating component and the circulating pump liquid cooling component is discharged from the check mechanism to the exhaust gas filtration module.

[0016] The beneficial effects of this invention are as follows: the sealing mechanism in this invention can automatically seal all the vents on the charging compartment when the internal temperature exceeds the threshold, so that a sealed space is formed inside the charging compartment. The energy-consuming cooling mechanism consumes energy and cools the high-temperature exhaust gas discharged from the pressure relief pipe, so that the high-temperature exhaust gas can be discharged to the filter module at a lower temperature and a lower flow rate. After being treated by the filter module, it is discharged to the outside, so as to prevent the high-temperature, high-flow-rate exhaust gas from being directly discharged and causing a great impact on the electronic components inside the battery swapping cabinet and / or the outside world. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention arranged on the charging compartment; Figure 2 This is a schematic diagram of the sealing mechanism of the present invention; Figure 3 This is a cross-sectional view of the sealing mechanism, pressure relief pipe, energy-consuming cooling mechanism, and check valve mechanism of the present invention. Figure 4 This is a schematic diagram of the energy-consuming cooling mechanism of the present invention; Figure 5 This is the invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is the invention Figure 4 Enlarged view at point B; Figure 7 This is a schematic diagram of the anti-reverse mechanism of the present invention.

[0018] In the diagram: 1. Sealing mechanism; 101. Fixed frame plate one; 102. Telescopic cover; 103. Moving frame plate; 104. Fixed frame plate two; 105. Guide rod; 106. Screw; 107. Motor; 2. Pressure relief pipe; 3. Energy-consuming cooling mechanism; 301. Reducing pipe; 302. Connecting pipe one; 303. Limit bearing; 304. Rotating shaft; 305. Fan blade; 306. Fixed ring; 3060. Guide hole one; 307. Sliding... 308. Moving ring; 309. Telescopic tube one; 310. Telescopic tube two; 311. Guide tube one; 312. Guide tube two; 313. Blocking plate one; 314. Channel one; 315. Plastic sheet one; 316. Blocking plate two; 317. Channel two; 318. Plastic sheet two; 4. Anti-reverse mechanism; 401. Connecting tube two; 402. Limiting ring; 403. Limiting rod; 404. Limiting plate; 405. Block; 406. Spring. Detailed Implementation

[0019] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein. Furthermore, features described in some examples may be combined in other examples.

[0020] like Figures 1 to 7 As shown, a fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet includes: The sealing mechanism 1 includes a linear drive assembly and a telescopic sealing assembly disposed on the linear drive assembly. The linear drive assembly is used to adjust the telescopic state of the telescopic sealing assembly. When the telescopic sealing assembly is in the extended state, it is used to cover all heat dissipation holes on the surface of the charging compartment. The one-way pressure relief mechanism includes a pressure relief pipe 2 connected to the telescopic sealing assembly and a check mechanism 4 connected to the output end of the pressure relief pipe 2. The check mechanism 4 is connected to the internal space of the charging compartment through the pressure relief pipe 2. The check mechanism 4 is used to control the exhaust gas generated in the internal space of the charging compartment to be discharged in only one direction.

[0021] An energy-consuming cooling mechanism 3 is connected between the pressure relief pipe 2 and the check valve 4. The energy-consuming cooling mechanism 3 includes a combined pipe connected between the pressure relief pipe 2 and the check valve 4, an energy-consuming rotating component located inside the combined pipe, a circulating pump liquid cooling component fixedly connected to the inner wall of the combined pipe, and a reciprocating moving component connected between the movable end of the circulating pump liquid cooling component and the energy-consuming rotating component. The energy-consuming rotating component is used to drive the reciprocating moving component to move back and forth along the central axis of the combined pipe, and the circulating pump liquid cooling component is used to pump in and out coolant.

[0022] It should be noted that the system's process for preventing deflagration and explosion in the battery charging compartment of the battery swapping cabinet while it is in operation includes the following steps: Step 1: Real-time acquisition of internal temperature data of the charging compartment. When the internal temperature of the charging compartment exceeds the threshold, the telescopic sealing component is extended by the linear drive component and covers all heat dissipation holes on the charging compartment, so that the charging compartment is in a completely sealed state. Step 2: When the battery burns and generates exhaust gas in the charging compartment, the high-pressure, high-temperature exhaust gas is guided into the combined pipe through the pressure relief pipe 2. The flowing high-pressure, high-temperature exhaust gas drives the energy-consuming rotating component to rotate within the combined pipe. During the rotation, the energy-consuming rotating component, through a cooperating reciprocating moving component, drives the circulating pump liquid cooling component to perform reciprocating extension and retraction. When the circulating pump liquid cooling component is in the extended state, it pumps in external coolant and exchanges heat with the high-temperature exhaust gas in the combined pipe. When the circulating pump liquid cooling component is in the contracted state, it pumps out the heat-exchanged coolant. This process not only effectively converts the kinetic energy generated by the exhaust gas flow into the power source of the reciprocating motion of the circulating pump liquid cooling component, but also allows for sufficient large-area contact heat exchange with the coolant pumped in and out during the reciprocating extension and retraction of the circulating pump liquid cooling component. This effectively reduces the thermal energy of the exhaust gas and mitigates the adverse effects of the exhaust gas discharged into the exhaust gas filtration module. Step 3: The exhaust gas flowing through the energy-consuming rotary component and the circulating pump liquid cooling component is discharged from the check mechanism 4 to the exhaust gas filtration module. The exhaust gas filtration module includes, but is not limited to, bag filters (to remove large particles), HEPA filters (to remove ultrafine particles), chemical adsorption tanks (to specifically adsorb residual acidic gases), and activated carbon adsorbers (to adsorb VOCs, HCN, etc.). After being processed by the filter module, the exhaust gas is discharged into the outside environment, which can effectively prevent high temperature and high flow rate exhaust gas from being directly discharged and causing a great impact on the electronic components inside the battery swapping cabinet and / or the outside environment.

[0023] In an optional embodiment of the present invention, a fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet further includes a fire extinguishing system. The fire extinguishing system includes a fire extinguishing medium storage device, a fire extinguishing medium pump, and a multi-channel delivery pipeline. Multiple ports of the multi-channel delivery pipeline can be connected to corresponding charging compartments, and each port is equipped with an electrically controlled valve. The ports are located near the charging ports. When an abnormal battery combustion occurs, the fire extinguishing medium stored in the fire extinguishing medium storage device can be delivered to the corresponding port by the fire extinguishing medium pump and sprayed evenly onto the battery to achieve efficient fire extinguishing. Since the charging compartment is sealed by a telescopic sealing component, the fire extinguishing medium will not be sprayed into other charging compartment areas, enabling precise and small-scale fire extinguishing.

[0024] In an optional embodiment of the invention, such as Figures 3 to 6 As shown, the combined pipeline includes a reducer 301 and a connecting pipe 302 connected to the output end of the reducer 301. The diameter of the reducer 301 is larger than the diameter of the pressure relief pipe 2, and the diameter of the connecting pipe 302 is the same as the diameter of the pressure relief pipe 2.

[0025] The energy-consuming rotating assembly includes a limiting bearing 303 fixedly connected to the inner circular surface of the connecting pipe 302, a rotating shaft 304 movably connected to the limiting bearing 303, and a fan blade 305 fixedly connected to the rotating shaft 304. The fan blade 305 is located on the rotating shaft 304 near the pressure relief pipe 2.

[0026] The circulating pump liquid cooling assembly includes a fixed ring 306 fixedly connected to the outer circumference of a connecting pipe 302, a movable ring 308 coaxially arranged with the fixed ring 306, a telescopic pipe 309 and a telescopic pipe 310 connected between the fixed ring 306 and the movable ring 308, a plurality of guide pipes 311 connected between the fixed ring 306 and the reducing pipe 301, and a plurality of guide pipes 312 connected to the reducing pipe 301. The fixed ring 306 is provided with a plurality of guide holes 3060. A number of flow guide holes 3060 are connected to corresponding flow guide pipes 311. A number of flow guide holes 2 are provided on the variable diameter pipe 301. The flow guide pipes 311 are connected to the corresponding flow guide pipes 312 through the flow guide holes 2. A unidirectional flow guide component 1 is provided on the inner wall of a portion of the flow guide holes 3060, and a unidirectional flow guide component 2 is provided on the inner wall of another portion of the flow guide holes 3060. A pump liquid chamber is formed between the fixed ring 306, the movable ring 308, the telescopic pipe 309 and the telescopic pipe 310. The unidirectional flow guide assembly includes a blocking plate 313 fixedly connected to the inner wall of the flow guide hole 3060, a plurality of channels 314 provided on the blocking plate 313, and a plastic sheet 315 connected to the end face of the blocking plate 313 located in the pump liquid chamber. Only one side of the plastic sheet 315 is fixedly connected to the blocking plate 313, and the plastic sheet 315 covers the plurality of channels 314. The second unidirectional flow guide assembly includes a second blocking plate 316 fixedly connected to the inner wall of the first flow guide hole 3060, a plurality of second channels 317 provided on the second blocking plate 316, and a second plastic sheet 318 connected to the end face of the first blocking plate 313 located inside the first flow guide hole 3060. The second plastic sheet 318 is fixedly connected to the second blocking plate 316 only on one side, and the second plastic sheet 318 covers the plurality of second channels 317.

[0027] The reciprocating moving assembly includes a reciprocating threaded groove on the rotating shaft 304 and a slider 307 sleeved on the rotating shaft 304. The slider 307 is configured to cooperate with the reciprocating threaded groove, and the slider 307 is fixedly connected to the moving ring 308.

[0028] It should be noted that, as mentioned above, the high-pressure, high-temperature exhaust gas flows from the charging chamber through the pressure relief pipe 2 and enters the reducer pipe 301. At this time, the exhaust gas with a certain flow rate flows through the fan blade 305, which can drive the fan blade 305 to rotate around the central axis of the rotating shaft 304, and drive the rotating shaft 304 to rotate in the same direction and at the same angle. When the rotating shaft 304 rotates, the reciprocating threaded groove provided on it can drive the slider 307 sleeved on the rotating shaft 304 to reciprocate along the central axis of the rotating shaft 304. During the reciprocating movement, it drives the moving ring 308 fixedly connected to it to move in the same direction and at the same distance. When the moving ring 308 moves away from the fixed ring 306, the volume in the pump liquid chamber increases, thereby generating negative pressure, which acts on the plastic sheet 315 and the plastic sheet 318. At this time, the plastic sheet 315 is affected by the negative pressure and bends towards the pump liquid chamber. The passage 314 is in a conductive state, allowing the coolant in the coolant reservoir connected to the guide pipe 312, which is matched with the passage 314, to be pumped into the pump chamber. The plastic sheet 318 is tightly attached to the passage 317. When the reservoir is compressed, the plastic sheets 315 and 318 are in opposite states. The plastic sheet 318 is bent under pressure, and the passage 317 is in a conductive state. This allows the coolant after heat exchange to flow only from the passage 317 to the guide pipe 312, enabling the coolant to circulate between the coolant reservoir and the pump chamber. This ensures that the coolant in the pumping path receives sufficient cooling time and flow path, effectively improving cooling efficiency. The exhaust gas decreases in both velocity and temperature after passing through the connecting pipe 302.

[0029] In an optional embodiment of the invention, such as Figures 1 to 3 As shown, the linear drive assembly includes a first fixed frame plate 101, a second fixed frame plate 104, a guide rod 105 fixedly connected between the first fixed frame plate 101 and the second fixed frame plate 104, a screw rod 106 movably connected between the first fixed frame plate 101 and the second fixed frame plate 104, and a motor 107 fixedly connected to the second fixed frame plate 104. The output shaft end of the motor 107 is connected to the screw rod 106. The guide rod 105 and the screw rod 106 are symmetrically arranged. The first fixed frame plate 101 and the second fixed frame plate 104 are both fixedly connected to the outer wall of the charging compartment.

[0030] The telescopic sealing assembly includes a telescopic cover 102 and a movable frame plate 103 connected to one end of the telescopic cover 102. The movable frame plate 103 is provided with through holes and screw holes that cooperate with the guide rod 105 and the screw 106, respectively. The other end of the telescopic cover 102 is fixedly connected to the fixed frame plate 101. Both the telescopic cover 102 and the movable frame plate 103 are in contact with the outer wall of the charging compartment, and the contact area is provided with a seal. The input end of the pressure relief pipe 2 is connected to the telescopic cover 102. When the telescopic cover 102 is in the extended state, the pressure relief pipe 2 is connected to the internal space of the charging compartment.

[0031] It should be noted that, as mentioned above, when covering the heat dissipation hole area on the charging compartment, the screw 106 is driven to rotate by the motor 107. When the screw 106 rotates, it can drive the movable frame plate 103, which is threaded to it, to move toward the fixed frame plate 104. As the movable frame plate 103 moves, one end of the telescopic cover 102 fixed to it will also move in the same direction and distance as the movable frame plate 103 until the movable frame plate 103 is in close contact with the fixed frame plate 104 and generates a set compressive force. The stretched telescopic cover 102 covers all the heat dissipation holes, thereby forming a sealed cover outside the charging compartment, which isolates the charging compartment from the outside world and forms a sealed space.

[0032] In an optional embodiment of the invention, such as Figure 3 and Figure 7 As shown, the anti-reverse mechanism 4 includes a second connecting pipe 401, a limiting ring 402 and a limiting rod 403 fixedly connected to the inner wall of the second connecting pipe 401, a limiting plate 404 fixedly connected to the limiting rod 403, a plug 405 slidably connected to the limiting plate 404, and a spring 406 fixedly connected between the plug 405 and the limiting plate 404. The plug 405 is configured to cooperate with the limiting ring 402, and the second connecting pipe 401 is connected to the first connecting pipe 302.

[0033] It should be noted that the exhaust gas flowing through the reducer 301 and connecting pipe 302 has a reduced flow rate and temperature. When it flows to the contact area between the blockage 405 and the limiting ring 402, the pressure it generates can exert a thrust on the blockage 405 away from the limiting ring 402 and overcome the tension of the spring 406, so that the blockage 405 and the limiting ring 402 no longer contact each other, and a gap is created for the exhaust gas to flow, which can further reduce the flow rate of the exhaust gas and prevent the exhaust gas from flowing back and into the connecting pipe 401 connected to other charging compartments.

[0034] The above description of this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A fireproof and explosion-proof system based on a battery swapping cabinet for two-wheeled vehicles, characterized in that, include: The sealing mechanism (1) includes a linear drive assembly and a telescopic sealing assembly disposed on the linear drive assembly. The linear drive assembly is used to adjust the telescopic state of the telescopic sealing assembly. When the telescopic sealing assembly is in the extended state, it is used to cover all heat dissipation holes on the surface of the charging compartment. A one-way pressure relief mechanism includes a pressure relief pipe (2) connected to a telescopic sealing assembly and a check mechanism (4) connected to the output end of the pressure relief pipe (2). The check mechanism (4) is connected to the internal space of the charging compartment through the pressure relief pipe (2). The check mechanism (4) is used to control the exhaust gas generated in the internal space of the charging compartment to be discharged in only one direction.

2. The fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 1, characterized in that, An energy-consuming cooling mechanism (3) is connected between the pressure relief pipe (2) and the check valve (4). The energy-consuming cooling mechanism (3) includes a combined pipe connected between the pressure relief pipe (2) and the check valve (4), an energy-consuming rotating component located inside the combined pipe, a circulating pump liquid cooling component fixedly connected to the inner wall of the combined pipe, and a reciprocating moving component connected between the movable end of the circulating pump liquid cooling component and the energy-consuming rotating component. The energy-consuming rotating component is used to drive the reciprocating moving component to move back and forth along the central axis of the combined pipe. The circulating pump liquid cooling component is used to pump in and out coolant.

3. The fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 2, characterized in that, The combined pipeline includes a reducer (301) and a connecting pipe (302) connected to the output end of the reducer (301). The diameter of the reducer (301) is larger than the diameter of the pressure relief pipe (2), and the diameter of the connecting pipe (302) is the same as the diameter of the pressure relief pipe (2).

4. A fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 3, characterized in that, The energy-consuming rotating assembly includes a limiting bearing (303) fixedly connected to the inner circular surface of the connecting pipe (302), a rotating shaft (304) movably connected to the limiting bearing (303), and a fan blade (305) fixedly connected to the rotating shaft (304). The fan blade (305) is located on the rotating shaft (304) near the pressure relief pipe (2).

5. A fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 4, characterized in that, The circulating pump liquid cooling assembly includes a fixed ring (306) fixedly connected to the outer circular surface of the connecting pipe (302), a movable ring (308) coaxially arranged with the fixed ring (306), a telescopic pipe (309) and a telescopic pipe (310) connected between the fixed ring (306) and the movable ring (308), a plurality of guide pipes (311) connected between the fixed ring (306) and the reducing pipe (301), and a plurality of guide pipes (312) connected to the reducing pipe (301). The fixed ring (306) is provided with a plurality of guide holes (311). 060), several flow guide holes 1 (3060) are respectively connected to the corresponding flow guide pipe 1 (311), the variable diameter pipe (301) is provided with several flow guide holes 2, the flow guide pipe 1 (311) is connected to the corresponding flow guide pipe 2 (312) through the flow guide holes 2, a part of the flow guide hole 1 (3060) is provided with a unidirectional flow guide component 1 on the inner wall, and another part of the flow guide hole 1 (3060) is provided with a unidirectional flow guide component 2 on the inner wall, and a pump liquid chamber is formed between the fixed ring body (306), the moving ring body (308), the telescopic pipe 1 (309) and the telescopic pipe 2 (310); The unidirectional flow guide assembly includes a blocking plate (313) fixedly connected to the inner wall of the flow guide hole (3060), a plurality of channels (314) provided on the blocking plate (313), and a plastic sheet (315) connected to the end face of the blocking plate (313) located in the pump liquid chamber. The plastic sheet (315) is fixedly connected to the blocking plate (313) on only one side, and the plastic sheet (315) covers the plurality of channels (314). The second unidirectional flow guide component includes a second blocking plate (316) fixedly connected to the inner wall of the first flow guide hole (3060), a plurality of second channels (317) provided on the second blocking plate (316), and a second plastic sheet (318) connected to the end face of the first blocking plate (313) located in the first flow guide hole (3060). The second plastic sheet (318) is fixedly connected to the second blocking plate (316) on only one side, and the second plastic sheet (318) covers the plurality of second channels (317).

6. A fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 5, characterized in that, The reciprocating moving component includes a reciprocating threaded groove on the rotating shaft (304) and a slider (307) sleeved on the rotating shaft (304). The slider (307) is configured to cooperate with the reciprocating threaded groove, and the slider (307) is fixedly connected to the moving ring (308).

7. A fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 6, characterized in that, The linear drive assembly includes a first fixed frame plate (101), a second fixed frame plate (104), a guide rod (105) fixedly connected between the first fixed frame plate (101) and the second fixed frame plate (104), a screw rod (106) movably connected between the first fixed frame plate (101) and the second fixed frame plate (104), and a motor (107) fixedly connected to the second fixed frame plate (104). The output shaft end of the motor (107) is connected to the screw rod (106). The guide rod (105) and the screw rod (106) are symmetrically arranged. The first fixed frame plate (101) and the second fixed frame plate (104) are both fixedly connected to the outer wall of the charging compartment.

8. A fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 7, characterized in that, The telescopic sealing assembly includes a telescopic cover (102) and a movable frame plate (103) connected to one end of the telescopic cover (102). The movable frame plate (103) is provided with through holes and screw holes that cooperate with the guide rod (105) and the screw (106) respectively. The other end of the telescopic cover (102) is fixedly connected to a fixed frame plate (101). Both the telescopic cover (102) and the movable frame plate (103) are in contact with the outer wall of the charging compartment, and the contact area is provided with a sealing element. The input end of the pressure relief pipe (2) is connected to the telescopic cover (102). When the telescopic cover (102) is in the extended state, the pressure relief pipe (2) is connected to the internal space of the charging compartment.

9. A fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet according to claim 8, characterized in that, The anti-reverse mechanism (4) includes a second connecting pipe (401), a limiting ring (402) and a limiting rod (403) fixedly connected to the inner wall of the second connecting pipe (401), a limiting plate (404) fixedly connected to the limiting rod (403), a plug (405) slidably connected to the limiting plate (404), and a spring (406) fixedly connected between the plug (405) and the limiting plate (404). The plug (405) is configured to cooperate with the limiting ring (402), and the second connecting pipe (401) is connected to the first connecting pipe (302).

10. A working method for a fireproof and explosion-proof system based on a two-wheeled vehicle battery swapping cabinet, characterized in that, The fire and explosion protection system based on a two-wheeled vehicle battery swapping cabinet as described in any one of claims 2-9 includes the following steps: Step 100: Real-time acquisition of internal temperature data of the charging compartment. When the internal temperature of the charging compartment exceeds the threshold, the telescopic sealing component is extended by the linear drive component and covers all heat dissipation holes on the charging compartment, so that the charging compartment is in a completely sealed state. Step 200: When the battery burns and generates exhaust gas in the charging compartment, the high-pressure and high-temperature exhaust gas is guided into the combined pipe through the pressure relief pipe (2), and the high-pressure and high-temperature exhaust gas drives the energy-consuming rotating component to rotate in the combined pipe. During the rotation, the energy-consuming rotating component drives the circulating pump liquid cooling component to perform reciprocating extension and retraction motion through the cooperating reciprocating moving component. When the circulating pump liquid cooling component is in the extended state, it is used to pump in the external coolant and exchange heat with the high-temperature exhaust gas in the combined pipe. When the circulating pump liquid cooling component is in the contracted state, it is used to pump out the heat-exchanged coolant. Step 300: The exhaust gas flowing through the energy-consuming rotating component and the circulating pump liquid cooling component is discharged from the check mechanism (4) to the exhaust gas filtration module.

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