Fire detection fireproof device for electric automobile
By designing a fire detection and prevention device for electric vehicles, which automatically deploys or lowers fire blankets and fire covers, and combines them with a fire-extinguishing sprinkler system, the problem of uncontrollable electric vehicle fires has been solved, and the fire has been effectively isolated and extinguished.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-22
- Publication Date
- 2026-03-24
AI Technical Summary
When an electric vehicle catches fire, traditional firefighting methods are often ineffective in controlling the fire, which can easily spread to surrounding vehicles. Furthermore, fire trucks cannot enter enclosed spaces such as underground parking garages, making it difficult to extinguish the fire.
Various fire detection and fire prevention devices for electric vehicles were designed, including fire blankets, fire covers, and fire extinguishing devices. The fire detection devices automatically deploy or drop fireproof materials to isolate the fire source and spray water to extinguish the fire and prevent the fire from spreading.
Effectively isolate the burning car from surrounding vehicles, promptly control the fire, reduce fire losses, and improve the safety of electric vehicles.
Smart Images
Figure CN121714869A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of fire fighting and extinguishing, specifically relating to a fire detection and prevention device for electric vehicles. Background Technology
[0002] Electric vehicles are now widely used, and since most of their power batteries are lithium-ion batteries, they are prone to spontaneous combustion during charging or storage. Traditional firefighting methods are often ineffective in extinguishing such fires, and the burning batteries can easily ignite parked cars nearby, causing even greater damage. In underground parking garages, fire trucks cannot access the enclosed space, and other drivers are hesitant to move their vehicles, leaving the fire to burn uncontrollably. This not only causes fires in surrounding vehicles but can also damage buildings.
[0003] Therefore, it is essential for us to technically address the issues of how a fire in an electric vehicle can easily spread to other vehicles nearby, and how to promptly detect and effectively control a fire after it starts. Summary of the Invention
[0004] All descriptions of directions such as front, back, left, right, up, and down are based on the reference frame that the front of the car enters the parking space first, and after the car is parked, the person is in the driver's seat with their face facing forward.
[0005] To address the challenges of rapidly spreading and extinguishing fires in electric vehicles, which are difficult to control using traditional firefighting methods and can easily damage other vehicles, and to solve the technical problems of timely detection and effective control of fires in electric vehicles, a fire detection and prevention device for electric vehicles has been invented. This device can detect fires in a timely manner and take measures to isolate the burning electric vehicle, control the fire, and prevent it from affecting other vehicles.
[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: the electric vehicle fire detection and fire prevention device has three independent technical solutions: electric vehicle fire detection and fire prevention device one, electric vehicle fire detection and fire prevention device two, electric vehicle fire detection and fire prevention device three, and electric vehicle fire detection and fire prevention device four.
[0007] The electric vehicle fire detection and fire prevention device includes a controller A and a fire prevention device. The fire prevention device includes a fire detection device A, a fire blanket tube A, a base for the fire blanket tube A, a positioning shaft for the fire blanket tube A, and a fire blanket A. The base for the fire blanket tube A is a disc. The positioning shaft for the fire blanket tube A is vertically fixed at the center of the base. The fire blanket tube A is in the shape of an I-beam, with a circular hole at its center, connected to the positioning shaft via a bearing. The fire blanket tube A can rotate freely around the positioning shaft. The fire blanket A is a rectangular fire blanket, with its tail fixed to the fire blanket tube A. The fire blanket A is then rolled onto the fire blanket tube A, with the height of the tube A matching that of the fire blanket A. The first end of the fire blanket A is connected to a fixed rod A. A gear is installed at the bottom of the fixed rod A, connecting to a motor A. The motor A, fire detection device A, and controller A are electrically connected. Racks are installed on both sides of the parking space. The motor A drives the gears to rotate and move forward along the racks, thereby causing the fixed rod A and the fire blanket A to unfold forward. A fire protection device is installed on each side of the head of the parking space. When a fire occurs in an electric vehicle, the fire detection device A detects the fire. Under the control of the controller A, the fire blankets A installed in the fire protection devices on both sides of the head of the parking space automatically extend vertically towards the tail of the parking space, automatically pulling the fire blankets A in the fire protection devices to a predetermined position, separating the burning vehicle from other vehicles.
[0008] Fire blanket A is rolled onto fire blanket tube A. When fire blanket A is pulled out, it becomes a rectangular fire blanket, longer than the length of the electric vehicle and taller than the height of the electric vehicle. The base of fire blanket tube A is fixed to the ground on both sides of the head of the car parking space. The fire blanket is made of high-temperature resistant fireproof material, specifically ceramic fiber cloth that can be used for welding gun fireproof cotton, or high-temperature resistant aluminum silicate fiber cloth, or carbon fiber fireproof cotton, which can withstand temperatures up to 1200℃.
[0009] To further facilitate timely fire detection and effective fire control and extinguishing, the electric vehicle fire detection and prevention device also includes a fire extinguishing device, comprising a water pipe, an installation pipe, a fire extinguishing nozzle, and a solenoid valve. The installation pipe is horizontally installed above and in front of the parking space. The fire detection device A is installed on the installation pipe in front of the parking space, with the fire extinguishing nozzle facing the parking space. The fire extinguishing nozzle is connected to the water pipe via the solenoid valve. For fire prevention, the fire extinguishing nozzle and water pipe are made of fire-resistant metal. The solenoid valve is electrically connected to controller A. After the fire extinguishing device is installed, it can detect a fire in time, open the solenoid valve promptly, and the corresponding fire extinguishing nozzle sprays water onto the burning electric vehicle, effectively controlling the fire and cooling and extinguishing it with water.
[0010] Electric vehicle fire detection and fire prevention device 2 includes controller B, fire detection device B, fire blanket tube B, motor B, fire blanket tube B fixing frame, fire blanket drop rod 1, magnetic attractor A, fire blanket drop rod 1 fixing frame, fire blanket drop rod 2, magnetic attractor B, fire blanket drop rod 2 fixing frame, and fire blanket B. Fire detection device B, magnetic attractor A (40), magnetic attractor B and controller B are electrically connected; Fire blanket tube B, used for rolling fire blanket B, has an I-beam shaped middle section. The fire blanket tube B fixing bracket is fixed above the parking space like a fluorescent lamp holder, installed in a back-and-forth direction. The fire blanket tube B is mounted on the tube seat A of the fire blanket tube B fixing bracket in a back-and-forth direction, allowing free rotation. Furthermore, a bearing is installed in tube seat A to ensure smoother rotation of the fire blanket tube B. The head shaft of the fire blanket tube B is connected to motor B. The fire blanket lowering rod one and fire blanket lowering rod two fixing brackets are identical, fixed above the left and right sides of the parking space in a back-and-forth direction, and their shapes are the same as the fire blanket tube B fixing bracket. The two ends of fire blanket lowering rod one are connected to the tube seats B at both ends of the fire blanket lowering rod one fixing bracket via connecting shafts. Fire blanket lowering rod one is divided into two sections: fire blanket lowering rod one section A and fire blanket lowering rod one section B. The head of fire blanket lowering rod one section A is connected to the head tube seat B of the fire blanket lowering rod one fixing bracket. The tail of section B of the fire blanket lowering rod is connected to the tail tube seat B of the fire blanket lowering rod fixing frame. The tail of section A of the fire blanket lowering rod and the head of section B of the fire blanket lowering rod are connected by a magnetic attractor A. The fire blanket lowering rod 2 has the same structure as the fire blanket lowering rod 1. Both ends of the fire blanket lowering rod 2 are connected to the tube seats C at both ends of the fire blanket lowering rod 2 fixing frame by a connecting shaft. The fire blanket lowering rod 2 is divided into two sections: section A and section B. The head of section A of the fire blanket lowering rod 2 is connected to the head of the fire blanket lowering rod 2 fixing frame by a shaft. The tail of section B of the fire blanket lowering rod 2 is connected to the tail of the fire blanket lowering rod 2 fixing frame by a shaft. The tail of section A of the fire blanket lowering rod 2 and the head of section B of the fire blanket lowering rod 2 are connected by a magnetic attractor B. When installing fire blanket B, it is hung approximately symmetrically on fire blanket lowering rod one and fire blanket lowering rod two. At this time, magnetic attractors A and B engage, and fire blanket lowering rod one and fire blanket lowering rod two act like a single rod. Fire blanket tube B is positioned above fire blanket B. Simultaneously, both ends of fire blanket B on one side are lifted upwards and wound onto fire blanket tube B. The rotation of motor B can then be controlled to rotate fire blanket tube B, winding the entire fire blanket B onto it until both ends of fire blanket B almost meet fire blanket lowering rod one and fire blanket lowering rod two. The direction of rotation of fire blanket tube B is determined as follows: if on the right side of fire blanket tube B, when fire blanket B is lifted upwards and wound onto fire blanket tube B, fire blanket tube B... The fire blanket B is rolled up counterclockwise onto the fire blanket tube B. If it is on the left side of the fire blanket tube B, the fire blanket B is lifted up and rolled up onto the fire blanket tube B, and then the fire blanket tube B is rolled up clockwise. Stainless steel tubes B are connected to both ends of the fire blanket B, so that when the fire blanket B is lowered and covers the burning electric vehicle, the sides of the electric vehicle can be covered more tightly.
[0011] The fire prevention process of the electric vehicle fire detection and fire prevention device II is as follows: When the car catches fire, the fire detection device B will detect it, and the controller B will control the corresponding motor B to rotate, driving the fire blanket tube B to rotate. The direction of motor B's rotation is to release the fire blanket B rolled on the fire blanket tube B. The left and right sides of the fire blanket B fall under the gravity of the stainless steel tube B until the fire blanket B is completely released. At this time, the controller B controls the magnetic attractors A and B to open, and the middle connection between fire blanket lowering rod one and fire blanket lowering rod two is released. Section A of fire blanket lowering rod one rotates around the head tube seat B of the fire blanket lowering rod one fixing frame and hangs down, and section B of fire blanket lowering rod one rotates around the tail tube seat B of the fire blanket lowering rod one fixing frame and hangs down; fire blanket lowering rod two is the same as fire blanket lowering rod one, with the middle part separating and hanging down; the left and right sides of the fire blanket B fall under the gravity of the stainless steel tube B. Under the influence of gravity, it continues to descend until it lands on the ground on both sides of the burning car. The fire blanket B falls completely and covers the car, thus preventing the burning car from burning other cars on the left and right sides and preventing the flames from rising upwards. Whether the rotation of motor B has completely released the fire blanket B rolled on the fire blanket tube B can be detected by a photoelectric switch installed on the fixing frame of the fire blanket tube B. The photoelectric switch is electrically connected to the controller B.
[0012] The second electric vehicle fire detection and prevention device also includes an electric fire blanket roller shutter A and an electric fire blanket roller shutter B. Fire blanket roller shutter A is installed at the head of the parking space, and fire blanket roller shutter B is installed at the tail of the parking space. The structure of fire blanket roller shutter A and fire blanket roller shutter B is the same as that of commonly used electric roller shutters. Electric fire blanket roller shutter A, electric fire blanket roller shutter B and controller B are electrically connected. When the car catches fire, the fire detection device B will detect it, and the controller B will control fire blanket roller shutter A and fire blanket roller shutter B to descend to prevent the fire from spreading.
[0013] As an optional further solution, two parallel rollers, roller A and roller B, are installed between the tube seats B at both ends of the first fixing frame of the fire blanket lowering rod and the tube seats C at both ends of the second fixing frame of the fire blanket lowering rod. The two rollers can rotate freely. Rollers A and B are connected to the heads of fire blankets C and D respectively, and fire blankets C and D are rolled onto rollers A and B respectively. The tail ends of fire blankets C and D are connected to two stainless steel tubes A and two stainless steel tubes B, forming a rectangle. In this way, when fire blanket B falls completely, fire blankets C and D fall together, blocking the front and rear of the burning car.
[0014] The electric vehicle fire detection and prevention device is best suited for installation in enclosed parking lots, such as underground parking lots and shopping mall parking lots.
[0015] Electric vehicle fire detection and fire prevention device three, which includes controller C, fire detection device C, car fireproof cover, car fireproof cover lifting mechanism, and motor C; The fire detection device C, motor C, and controller C are electrically connected; motor C is connected to the vehicle fireproof cover lifting mechanism. The car fireproof cover is a rectangular cover made of fire-resistant material. The rectangular base of the cover is the same size as the rectangular parking space, and its height is adapted to the height of the car. The bottom of the cover is surrounded by a rectangular frame made of stainless steel tubing (C). The four corners of this frame are connected to a lifting mechanism via ropes. This lifting mechanism is installed above the parking space. Normally, the fireproof cover is raised by a motor (C), ideally keeping it as close as possible to the mechanism. When a fire occurs in an electric vehicle, the fire detection device (C) detects it, and the controller (C) controls the motor (C) to lower the fireproof cover, placing it over the burning car in the parking space. This effectively prevents the flames from spreading to other cars in adjacent areas. Specifically, two types of car fireproof cover lifting mechanisms were designed here.
[0016] Option 1 for the lifting mechanism of the car fireproof cover: The two left corners of the rectangular stainless steel tube frame of the car fireproof cover are connected by a rope A, and a lifting ring A is fixed to rope A. Similarly, the two right corners of the rectangular stainless steel tube frame of the car fireproof cover are connected by a rope B, and a lifting ring B is fixed to rope B. The lengths of ropes A and B are such that when ropes A and B are taut, lifting rings A and B are tightly pressed together, and the center of gravity of the entire car fireproof cover is between lifting rings A and B. At this time, the upper part of the rectangular stainless steel tube frame of the car fireproof cover is pressed under ropes A and B. Then, lifting rings A and B are hooked by an automatic release hook. The automatic release hook is connected to a pulley A fixed directly above lifting rings A and B by a rope. Pulley A is connected to motor C. The rotation of motor C drives pulley A to rotate, thereby raising and lowering the automatic release hook and the rectangular frame of the stainless steel tube of the car fireproof cover. To ensure smooth release when the automatic release hook reaches the top of the car, a rectangular support cloth A is installed on both sides of the rectangular frame. Iron bars connect to the left and right sides of support cloth A. Magnetic attractors C and D are also installed on both sides of the rectangular frame, corresponding to two iron bars of support cloth A. The rectangular frame of the stainless steel tube for the car fireproof cover is blocked in the middle of both sides; a position switch A is also installed, which is located on the automatic release hook or on the rectangular frame of the stainless steel tube for the car fireproof cover. Position switch A is electrically connected to controller C; the support cloth A also prevents the upper part of the rectangular frame of the stainless steel tube for the car fireproof cover from sinking downwards. In this way, the car fireproof cover is compressed between the support cloth A and ropes A and B under normal circumstances, minimizing its volume. The car fireproof cover is then lifted by the car fireproof cover lifting mechanism. The fireproof cover is hoisted and placed above the car parking space, minimizing its impact on the aesthetics of the parking garage. When a fire breaks out in an electric vehicle, the fire detection device C detects it, and the controller C controls the rotation of the motor C, which in turn rotates the pulley A. This causes the automatic release hook to descend, lowering the rectangular stainless steel frame of the fireproof cover and lowering the fireproof cover. When the support cloth A touches the top of the car, the automatic release hook automatically releases, disengaging from the lifting rings A and B. Simultaneously, the position switch A detects this and releases the magnetic attractors C and D. Under the weight of the rectangular stainless steel frame, the fireproof cover continues to fall until it reaches the ground, completely covering the burning car and preventing the flames from spreading to other cars in adjacent locations. Scheme 2 for the lifting mechanism of the car fireproof cover: Three rotating shafts are set and fixed above the car parking space. The three rotating shafts are: rotating shaft A, rotating shaft B, and rotating shaft C. Rotating shaft A is set above the left side of the car parking space and parallel to the left side line of the car parking space. Rotating shaft B is set above the middle of the car parking space and parallel to rotating shaft A. Rotating shaft C is set above the right side line of the car parking space and parallel to rotating shaft A. Rotating shaft B is connected to motor D. Rotating shaft A and rotating shaft B are connected by two sprockets A and transmission chain A. Rotating shaft C and rotating shaft B are connected by two sprockets B and transmission chain B. At the intersection of rotating shaft A (27) and rotating shaft C (29) At the four corners of the rectangular frame of the stainless steel tube of the car fireproof cover, four pulleys B (32) are respectively set. The four corners of the rectangular frame of the stainless steel tube of the car fireproof cover are connected to the pulleys B above by rope C. The synchronous rotation of the four pulleys B can produce the lifting and lowering of the rectangular frame of the stainless steel tube of the car fireproof cover, and thus the lifting and lowering of the car fireproof cover. The rotating shaft B can be driven by the motor D. At the same time, the two sprockets A, the transmission chain A, the two sprockets B and the transmission chain B The rotating shafts A and C rotate, which in turn drives the four pulleys B to rotate synchronously. To compress the space occupied by the car fireproof cover during the upward movement, a flat plate A is installed below the three rotating shafts to block and compress the upper part of the car fireproof cover's stainless steel rectangular frame. To prevent the upper part of the car fireproof cover's stainless steel rectangular frame from sinking downwards, a rectangular support cloth B is installed on both sides of the rectangular frame. The support cloth B blocks the middle part of the left and right sides of the rectangular frame. Iron strips are connected to the left and right sides of the support cloth B. Magnetic attractors E and F are also installed on both sides of the rectangular frame, corresponding to two iron strips of support cloth B. The car fireproof cover is compressed between the flat plate A and the support cloth B, minimizing its volume. A position switch B is also installed on the rectangular frame of the car fireproof cover's stainless steel frame and is electrically connected to the controller C. When an electric vehicle fire occurs, the fire detection device C detects it, and the controller C controls the rotation of the motor D, driving the rotating shaft B. Simultaneously, rotating shafts A and C rotate, causing the four pulleys B to rotate synchronously. Ultimately, this causes the rectangular stainless steel frame of the fireproof cover to descend, lowering the fireproof cover. When the support cloth B touches the top of the car, it is detected by the position switch B, which then releases the magnetic catchers C and D. Under the weight of the rectangular stainless steel frame, the fireproof cover continues to fall until it reaches the ground, completely covering the burning car and preventing the flames from spreading to other adjacent cars.
[0017] The third type of fire detection and prevention device for electric vehicles is also suitable for installation in enclosed parking lots, such as underground parking lots and shopping mall parking lots.
[0018] The fourth fire detection and fire prevention device for electric vehicles is a car fireproof cover (B). The car fireproof cover B is a rectangular cover made of fire-resistant material, such as a fire blanket. The rectangular base of the cover matches the rectangular size of the parking space, and its height is adapted to the car's height. The bottom of the cover is framed by four stainless steel tubes D, forming a rectangular frame. Furthermore, the bottom of the cover has four holes for the fire blanket, allowing for easy insertion and removal of the stainless steel tubes D. This design allows for space-saving storage when not in use; when needed, the four stainless steel tubes D are simply inserted into the fire blanket holes. In the event of a fire in an electric vehicle, after confirming that no one is inside, the rectangular frame of the car fireproof cover B is placed on the vehicle and pushed forward until it covers the burning vehicle. This prevents injury to the operator and prevents the fire from spreading to other nearby vehicles. Its simple structure and convenient storage and use solve the problem of traditional fire extinguishing methods being insufficient to extinguish electric vehicle fires.
[0019] The electric vehicle fire detection and fire prevention device is suitable for situations where it is convenient to install the previous three electric vehicle fire detection and fire prevention devices.
[0020] The beneficial effects of this invention are: 1. Electric Vehicle Fire Detection and Prevention Device 1: Featuring a vertically deployable fire blanket A, when a fire occurs in an electric vehicle, upon detection, the fire blankets in the fire prevention devices located on both sides of the parking space's head are automatically extended vertically towards the rear of the parking space under the control of controller A. This automatically pulls the high-temperature resistant fire blanket to a predetermined position, separating the burning vehicle from other vehicles and preventing the fire from spreading to other cars. Additionally, a fire extinguishing device 1 is included. Once a fire is detected, the corresponding solenoid valve is activated, and the fire extinguishing nozzle sprays water onto the burning electric vehicle, effectively controlling the fire and cooling and extinguishing it promptly, greatly improving the safety of the electric vehicle.
[0021] 2. The second fire prevention device for electric vehicles is designed with a fire blanket B that can be vertically lowered and deployed. When a car catches fire, the fire detection device B will detect it, and the controller B will control the corresponding motor B to rotate, which will drive the fire blanket tube B to rotate, releasing the fire blanket B rolled on the tube B. The fire blanket B will then fall down and cover the car, thus preventing the burning car from burning other cars on the left and right sides and preventing the flames from burning upwards.
[0022] 3. Electric vehicle fire detection and fire prevention device three: Because it is designed with a vertically descending car fireproof cover, when the car catches fire, the fire detection device C will detect it, and the controller C will control the lifting mechanism of the car fireproof cover to lower the car fireproof cover. The entire car fireproof cover will fall down and cover the car, thus preventing the burning car from burning other cars on the left and right sides and preventing the flames from burning upwards.
[0023] 4. The electric vehicle fire detection and fire prevention device four features a detachable and quickly installable car fireproof cover B. Its simple structure and convenient storage and use solve the problem that traditional fire extinguishing methods are often ineffective in extinguishing fires in electric vehicles, leading to the spread of the fire. Upon detection of a fire, the car fireproof cover B can be quickly installed and placed over the burning electric vehicle to prevent further spread of the fire. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Figure 1 This is a schematic diagram of the fireproof device, fire blanket A, after it has been pulled out.
[0026] Figure 2 This is a schematic diagram of the fireproof device, fire blanket A, after it has been retracted.
[0027] Figure 3 This is a diagram showing that fire prevention device 1 and fire extinguishing device 1 are installed on both sides of a car parking space.
[0028] Figure 4 This is a schematic diagram showing the positioning shaft of fire blanket tube A installed on the base of fire blanket tube A.
[0029] Figure 5 This is a schematic diagram showing the installation of fire blanket tube A on the positioning shaft and the base of fire blanket tube A.
[0030] Figure 6 This is a schematic diagram of fire blanket tube B.
[0031] Figure 7 This is a schematic diagram of the fixing bracket for fire blanket tube B.
[0032] Figure 8 This is a schematic diagram of the electric fire blanket tube B installed on the fire blanket tube B fixing bracket.
[0033] Figure 9 This is a schematic diagram of a fire blanket lowering rod installed on a fire blanket lowering rod mounting bracket.
[0034] Figure 10This is a schematic diagram showing the electric vehicle fire detection and fire prevention device 2 placed on fire blanket lowering rod 1 and fire blanket lowering rod 2 when fire blanket B is not rolled up.
[0035] Figure 11 This is a schematic diagram showing the electric vehicle fire detection and fire prevention device 2 on the right side of the fire blanket tube B, with the fire blanket B lifted up front and back and rolled up counterclockwise half a turn, and placed on the fire blanket lowering rod 1 and fire blanket lowering rod 2.
[0036] Figure 12 This is a schematic diagram showing the electric vehicle fire detection and fire prevention device 2 with the fire blanket B completely rolled up and placed on the fire blanket lowering rod 1 and the fire blanket lowering rod 2.
[0037] Figure 13 This is a schematic diagram of the fireproof cover for the electric vehicle fire detection and fire prevention device 3.
[0038] Figure 14 The diagram shows the connection of the lifting mechanism of the car fireproof cover of the electric vehicle fire detection and fire prevention device 3 in Scheme 1. The car fireproof cover is equipped with ropes A and B, hanging rings A and B, and support cloth A. Support cloth A is connected to iron strips on the left and right sides, and magnetic attractors C and D.
[0039] Figure 15 This is a schematic diagram showing the connection between the car fireproof cover lifting mechanism and the car fireproof cover in Scheme 2 of the electric vehicle fire detection and fire prevention device 3.
[0040] In the diagram: 1. Fire blanket A, 2. Fire blanket tube A, 3. Fixing rod A, 4. Gear, 5. Rack, 6. Mounting pipe, 7. Fire detection device A, 8. Fire extinguishing nozzle, 9. Water pipe, 10. Base of fire blanket tube A, 11. Electric vehicle, 12. Positioning shaft of fire blanket tube A, 13. Fire blanket B, 14. Fire blanket lowering rod one, 15. Fire blanket lowering rod two, 16. Fire blanket tube B ， 17. Stainless steel pipe B ， 18. Stainless steel pipe C 19. Rope A 20. Rope B, 21. Ring A 22. Lifting ring B, 23. Supporting cloth A, 24. Supporting cloth A iron bar, 25. Magnetic attractor C, 26. Magnetic attractor D, 27. Rotating shaft A, 28. Rotating shaft B, 29. Rotating shaft C, 30. Sprocket A, 31. Drive chain A, 32. Pulley B, 33. Rope C, 34. Tube seat A, 35. I-beam wheel in the middle of the fire blanket tube B, 36. Fire blanket tube B fixing bracket, 37. Fire blanket lowering rod fixing bracket, 38. Fire blanket lowering rod section A, 39. Fire blanket lowering rod section B, 40. Magnetic attractor A, 41. Connecting shaft A, 42. Connecting shaft B, 43. Tube seat B, 44. Sprocket B 45. Transmission chain B. Detailed Implementation
[0041] The following is in conjunction with the appendix Figures 1-13 The present invention will be further illustrated by the embodiments.
[0042] See Figures 1-11 This first embodiment is a fire detection and prevention device for electric vehicles. The electric vehicle fire detection and fire prevention device includes a controller A and a fire prevention device A1. The fire prevention device A1 includes a fire detection device A7, a fire blanket tube A2, a base 10 for the fire blanket tube A, a positioning shaft 12 for the fire blanket tube A, and a fire blanket A1. The base 10 for the fire blanket tube A is a disc. The positioning shaft 12 is vertically fixed to the center of the base 10. The fire blanket tube A2 is in the shape of an I-beam, with a circular hole at its center, and is connected to the positioning shaft 12 via a bearing. The fire blanket tube A2 can rotate freely around the positioning shaft 12. The fire blanket A1 is a rectangular fire blanket. The tail of the fire blanket A1 is fixed to the fire blanket tube A2, and then the fire blanket A1 is rolled up onto the fire blanket tube A2. The height of the fire blanket tube A2 and the fire blanket A1 are... 1. A fire blanket A1 is connected to a fixed rod A3 at its head. A gear 4 is installed at the bottom of the fixed rod A3, which is connected to a motor A. The motor A, fire detection device A7, and controller A are electrically connected. Racks 5 are installed on both sides of the car parking space. The motor A drives the gear 4 to rotate and move forward along the racks 5, thereby causing the fixed rod A3 and the fire blanket A1 to unfold forward. A fire protection device A1 is installed on each side of the head of the car parking space. When a fire occurs in an electric vehicle, after the fire detection device A7 detects the fire, under the control of the controller A, the fire blanket A in the fire protection device A1 installed on both sides of the head of the parking space automatically extends and unfolds vertically towards the tail of the parking space, automatically pulling the fire blanket A1 in the fire protection device A1 to the predetermined position, separating the burning car from other vehicles.
[0043] Fire blanket A1 is rolled onto fire blanket tube A2. When fire blanket A1 is pulled out, it becomes a rectangular fire blanket, longer than the length of the electric vehicle and taller than the height of the electric vehicle. Fire blanket tube A base 10 is fixed to the ground on both sides of the head of the car parking space. The fire blanket is made of high-temperature resistant fireproof material, specifically ceramic fiber cloth that can be used for welding gun fireproof cotton, or high-temperature resistant aluminum silicate fiber cloth, or carbon fiber fireproof cotton, which can withstand temperatures up to 1200℃.
[0044] To further facilitate timely and effective fire control and extinguishing, the electric vehicle fire detection and prevention device also includes a fire extinguishing device, comprising a water pipe 9, an installation pipe 6, a fire extinguishing nozzle 8, and a solenoid valve. The installation pipe 6 is horizontally installed above and in front of the parking space. The fire detection device A 7 is installed on the installation pipe 6 in front of the parking space. The fire extinguishing nozzle 8 faces the parking space and is connected to the water pipe 9 via the solenoid valve. For fire prevention, the fire extinguishing nozzle and water pipe are made of fire-resistant metal. The fire detection device A 7, solenoid valve, and controller A are connected. After the fire extinguishing device is installed, it can detect a fire in time, open the solenoid valve, and the corresponding fire extinguishing nozzle 8 sprays water onto the burning electric vehicle, effectively controlling the fire and cooling and extinguishing it with water.
[0045] Example 2 is a fire detection and prevention device for electric vehicles.
[0046] Electric vehicle fire detection and fire prevention device II includes controller B, fire detection device B, fire blanket tube B 16, motor B, fire blanket tube B fixing frame 36, fire blanket lowering rod I 14, magnetic attractor A 40, fire blanket lowering rod I fixing frame 37, fire blanket lowering rod II 15, magnetic attractor B, fire blanket lowering rod II fixing frame, and fire blanket B 13; Fire detection device B, magnetic attractor A 40, magnetic attractor B and controller B are electrically connected; Fire blanket tube B 16 is used to roll the middle part of fire blanket B 13 in an H-beam shape. Fire blanket tube B fixing bracket 36 is fixed above the parking space like a fluorescent lamp holder, installed in a back-and-forth direction. Fire blanket tube B 16 is mounted on tube seat A 34 of fire blanket tube B fixing bracket 36 in a back-and-forth direction, allowing free rotation. Bearings are installed in tube seat A 34 to make the rotation of fire blanket tube B 16 smoother. The head shaft of fire blanket tube B 16 is connected to motor B. Fire blanket lowering rod one fixing bracket 37 and fire blanket lowering rod two fixing brackets are the same, fixed on the left and right sides above the parking space in a back-and-forth direction, with the same shape as fire blanket tube B fixing bracket 36. The two ends of fire blanket lowering rod one 14 are respectively connected to the tube seats B at both ends of fire blanket lowering rod one fixing bracket 37. 43 is connected via connecting shaft 41. The fire blanket lowering rod 14 is divided into two sections: fire blanket lowering rod section A 38 and fire blanket lowering rod section B 39. The head of fire blanket lowering rod section A 38 is connected to the head tube seat B 43 of fire blanket lowering rod fixing frame 37. The tail of fire blanket lowering rod section B 39 is connected to the tail tube seat B 43 of fire blanket lowering rod fixing frame 37. The tail of fire blanket lowering rod section A 38 and the head of fire blanket lowering rod section B 39 are connected via magnetic attraction A. 40 Connection; Fire blanket lowering rod 2 and fire blanket lowering rod 1 have the same structure. The two ends of fire blanket lowering rod 2 are connected to the tube seats C at both ends of the fire blanket lowering rod 2 fixing frame through connecting shafts. Fire blanket lowering rod 2 is divided into two sections, fire blanket lowering rod 2 section A and fire blanket lowering rod 2 section B. The head of fire blanket lowering rod 2 section A is connected to the head of fire blanket lowering rod 2 fixing frame through a shaft, and the tail of fire blanket lowering rod 2 section B is connected to the tail of fire blanket lowering rod 2 fixing frame through a shaft. The tail of fire blanket lowering rod 2 section A and the head of fire blanket lowering rod 2 section B are connected by a magnetic attractor B. When installing fire blanket B 13, it is hung approximately symmetrically on fire blanket lowering rod 14 and fire blanket lowering rod 25. At this time, magnetic attractor A 40 and magnetic attractor B are engaged, and fire blanket lowering rod 14 and fire blanket lowering rod 2 15 are like a single rod. Fire blanket tube B 16 is located above fire blanket B 13. Fire blanket B 13 is simultaneously lifted from both ends around fire blanket tube B 16 and wound onto it. The rotation of motor B can then be controlled to rotate fire blanket tube B 16, winding the entire fire blanket B 13 onto it until both ends of fire blanket B 13 are almost touching fire blanket lowering rod 14 and fire blanket lowering rod 2 15. The direction of rotation of fire blanket tube B 16 is determined as follows: if the fire blanket tube B 13 is in a certain position... On the right side of 16, when fire blanket B 13 is lifted and rolled onto fire blanket tube B 16, fire blanket tube B 16 rotates counterclockwise to roll all of fire blanket B 13 onto fire blanket tube B 16; if on the left side of fire blanket tube B 16, when fire blanket B 13 is lifted and rolled onto fire blanket tube B 16, fire blanket tube B 16 rotates clockwise to roll all of fire blanket B 13 onto fire blanket tube B 16; stainless steel tubes B 17 are connected to both ends of fire blanket B 13, so that when fire blanket B 13 is lowered and covers the burning electric vehicle, the sides of the electric vehicle can be more tightly covered.
[0047] The fire prevention process of the electric vehicle fire detection and fire prevention device is as follows: When the car catches fire, the fire detection device B will detect it. The controller B will control the corresponding motor B to rotate, driving the fire blanket tube B16 to rotate. The direction of motor B's rotation is to release the fire blanket B13 rolled on the fire blanket tube B16. The left and right sides of the fire blanket B13 fall under the gravity of the stainless steel tube B17 until the fire blanket B13 is completely released. At this time, the controller B controls the magnetic attractor A40 and the magnetic attractor B to open, and the middle connection between the fire blanket lowering rod 14 and the fire blanket lowering rod 2 15 is released. The fire blanket lowering rod 1 A section 38 rotates around the head tube seat B43 of the fire blanket lowering rod 1 fixing frame and hangs down. The fire blanket lowering rod 1 B section 39 rotates around the tail tube seat B of the fire blanket lowering rod 1 fixing frame. 43 rotates and drops; the second fire blanket drop bar is the same as the first fire blanket drop bar, with the middle part separated and dropping; the left and right sides of the fire blanket B 13 continue to drop under the gravity of the stainless steel tube B 17 until they land on the ground on both sides of the burning car. The fire blanket B 13 falls completely and covers the car, thus preventing the burning car from burning other cars on the left and right sides and preventing the flames from rising upwards; whether the rotation of motor B has completely released the fire blanket B 13 rolled on the fire blanket tube B 16 is detected by a photoelectric switch installed on the fire blanket tube B fixing bracket 36. The photoelectric switch is electrically connected to the controller B.
[0048] The second electric vehicle fire detection and prevention device also includes an electric fire blanket roller shutter A and an electric fire blanket roller shutter B. Fire blanket roller shutter A is installed at the head of the parking space, and fire blanket roller shutter B is installed at the tail of the parking space. The structure of fire blanket roller shutter A and fire blanket roller shutter B is the same as that of commonly used electric roller shutters. Electric fire blanket roller shutter A, electric fire blanket roller shutter B and controller B are electrically connected. When the car catches fire, the fire detection device B will detect it, and the controller B will control fire blanket roller shutter A and fire blanket roller shutter B to descend to prevent the fire from spreading.
[0049] As an optional further solution, two parallel rollers, roller A and roller B, are installed between the tube seats B43 at both ends of the first fixing frame 37 of the fire blanket lowering rod and the tube seats C at both ends of the second fixing frame of the fire blanket lowering rod. The two rollers can rotate freely. Rollers A and B are connected to the heads of fire blankets C and D respectively, and fire blankets C and D are rolled onto rollers A and B respectively. The tail ends of fire blankets C and D are connected to two stainless steel tubes A respectively. The two stainless steel tubes A and two stainless steel tubes B17 are connected to form a rectangle. In this way, when fire blanket B13 falls completely, fire blankets C and D fall together, blocking the front and rear of the burning car.
[0050] The electric vehicle fire detection and prevention device is more suitable for installation in enclosed parking lots, such as underground parking lots and shopping mall parking lots.
[0051] Example 3 is a fire detection and prevention device for electric vehicles.
[0052] Electric vehicle fire detection and fire prevention device three, which includes controller C, fire detection device C, car fireproof cover, car fireproof cover lifting mechanism, and motor C; The fire detection device C, motor C, and controller C are electrically connected; motor C is connected to the vehicle fireproof cover lifting mechanism. The car fireproof cover is a rectangular cover made of fire-resistant material. The rectangular size of the bottom of the cover matches the rectangular size of the parking space, and the height of the fireproof cover is adapted to the height of the car. The bottom of the fireproof cover is surrounded by a rectangular frame made of stainless steel C18 tubing. The four corners of the rectangular frame are connected to the lifting mechanism of the fireproof cover by ropes. The lifting mechanism is installed above the parking space. Normally, the fireproof cover is raised by the lifting mechanism driven by motor C, and the fireproof cover and the lifting mechanism are kept as close as possible. When a fire occurs in an electric vehicle, the fire detection device C detects it, and the controller C controls the motor C to drive the lifting mechanism to lower the fireproof cover, which covers the burning car parked in the parking space, effectively preventing the flames from spreading to other cars in adjacent locations. Specifically, two types of car fireproof cover lifting mechanisms were designed here.
[0053] Option 1 for the lifting mechanism of the car fireproof cover: The two left corners of the rectangular stainless steel tube frame of the car fireproof cover are connected by a rope A19, and a lifting ring A21 is fixed to rope A19. Similarly, the two right corners of the rectangular stainless steel tube frame of the car fireproof cover are connected by a rope B20, and a lifting ring B22 is fixed to rope B20. The lengths of ropes A19 and B20 are such that when ropes A19 and B20 are tightened, lifting rings A21 and B22 are tightly pressed together, and the center of gravity of the entire car fireproof cover is between lifting rings A21 and B22. At this time, the upper part of the rectangular stainless steel tube frame of the car fireproof cover is pressed under ropes A19 and B20. Then, lifting rings A21 and B22 are hooked on by an automatic release hook, and the automatic release hook connects lifting rings A21 and B22 with ropes. 22. A pulley A is fixed at the top, connected to a motor C. The rotation of motor C drives pulley A, thereby raising and lowering the automatic release hook and the rectangular frame of the stainless steel tube of the car fireproof cover. To ensure smooth release when the automatic release hook reaches the top of the car, a rectangular support cloth A 23 is installed on both sides of the rectangular frame. Support cloth A 23 is connected to iron strips 24 on both sides. Magnetic attractors C 25 and D 26 are also installed on both sides of the rectangular frame, corresponding to the two iron strips 24 of support cloth A. 23 blocks the middle part of the left and right sides of the rectangular frame of the stainless steel tube of the car fireproof cover; a position switch A is also provided, which is set on the automatic release hook or on the rectangular frame of the stainless steel tube of the car fireproof cover. Position switch A and controller C are electrically connected; the support cloth A 23 also prevents the upper part of the rectangular frame of the stainless steel tube of the car fireproof cover from sinking downwards. In this way, the car fireproof cover is compressed by the support cloth A 23, rope A 19 and rope B under normal circumstances. The size is kept to a minimum. The fireproof cover is lifted by a lifting mechanism and placed above the parking space, minimizing its impact on the aesthetics of the parking garage. When a fire occurs in an electric vehicle, the fire detection device C detects it, and the controller C controls the rotation of the motor C, which drives the pulley A to rotate. This causes the automatic release hook to descend, pulling down the rectangular stainless steel frame of the fireproof cover. When the support cloth A touches the top of the car, the automatic release hook automatically releases, disengaging from the lifting rings A and B. Simultaneously, the position switch A detects this and releases the magnetic attractors C and D. Under the weight of the rectangular stainless steel frame, the fireproof cover continues to fall until it reaches the ground, completely covering the burning car and preventing the flames from spreading to other cars in adjacent locations. Option 2 for the lifting mechanism of the car fireproof cover: Three rotating shafts are installed and fixed above the car parking space: rotating shaft A 27, rotating shaft B 28, and rotating shaft C 29. Rotating shaft A 27 is located above the left side of the car parking space and parallel to the left side line of the car parking space. Rotating shaft B 28 is located above the center of the car parking space and parallel to rotating shaft A 27. Rotating shaft C 29 is located above the right side line of the car parking space and parallel to rotating shaft A 27. Rotating shaft B 28 is connected to motor D. Rotating shaft A 27 and rotating shaft B 28 are connected by two sprockets A 30 and a drive chain A 31. Rotating shaft C 29 and rotating shaft B 28 are connected by two sprockets B 44 and a drive chain B 45. On rotating shafts A 27 and C 29, at the four corners of the rectangular stainless steel tube frame of the car fireproof cover, four pulleys B 32 are installed, respectively, and connected by rope C. 33. Connect the four corners of the rectangular frame of the stainless steel tube of the car fireproof cover to the pulleys B 32 at the top. The synchronous rotation of the four pulleys B 32 can produce the raising and lowering of the rectangular frame of the stainless steel tube of the car fireproof cover, and thus the raising and lowering of the car fireproof cover. The motor D can drive the rotating shaft B 28, and at the same time, through the two sprockets A 30, the drive chain A 31, the two sprockets B 44 and the drive chain B 45, drive the rotating shafts A 27 and C 29 to rotate, thereby driving the four pulleys B 32. 32. Synchronous rotation; To compress the space occupied by the car fireproof cover during upward movement, a flat plate A can be installed below the three rotating shafts to block and compress the upper part of the car fireproof cover's stainless steel tube rectangular frame; To prevent the upper part of the car fireproof cover's stainless steel tube rectangular frame from sinking downwards, a rectangular support cloth B is installed on both the left and right sides of the car fireproof cover's stainless steel tube rectangular frame. The support cloth B is blocked in the middle part of the left and right sides of the car fireproof cover's stainless steel tube rectangular frame. Support cloth B is connected to the left and right sides of the support cloth B with iron strips. Magnetic attractors E and F are also installed on the left and right sides of the car fireproof cover's stainless steel tube rectangular frame, corresponding to two support cloth B iron strips; The car fireproof cover is compressed between the flat plate A and the support cloth B, minimizing its volume; A position switch B is also installed on the car fireproof cover's stainless steel tube rectangular frame, and the position switch B is electrically connected to the controller C. When an electric vehicle fire occurs, the fire detection device C detects it, and the controller C controls the rotation of the motor D, driving the rotating shaft B. Simultaneously, the rotating shafts A and C rotate, causing the four pulleys B32 to rotate synchronously. This ultimately causes the rectangular stainless steel frame of the fireproof cover to descend, lowering the fireproof cover. When the support cloth B touches the top of the car, it is detected by the position switch B, which then releases the magnetic attractors C and D. Under the weight of the rectangular stainless steel frame, the fireproof cover continues to fall until it reaches the ground, completely covering the burning car and preventing the flames from spreading to other adjacent cars.
[0054] The third type of fire detection and prevention device for electric vehicles is also more suitable for installation in enclosed parking lots, such as underground parking lots and shopping mall parking lots.
[0055] Example 4 is a fire detection and fire prevention device for electric vehicles, which is a car fireproof cover B; The car fireproof cover B is a rectangular cover made of fire-resistant material, such as a fire blanket. The rectangular base of the cover is the same size as the rectangular area of the parking space, and its height is adapted to the height of the car. The bottom of the cover is surrounded by four stainless steel tubes D forming a rectangular frame. Furthermore, the bottom of the cover has four holes for the fire blanket, allowing the stainless steel tubes D to be easily inserted and removed. This design allows the fireproof cover B to be stored efficiently when not in use, and is easily accessible when needed by simply inserting the four stainless steel tubes D into the fire blanket holes. In the event of a fire in an electric vehicle, after confirming that no one is inside, the rectangular frame of the fireproof cover B is placed on the vehicle and pushed forward until it covers the burning vehicle. This prevents injury to the operator and prevents the fire from spreading to other nearby vehicles. Its simple structure and convenient storage and use solve the problem of electric vehicle fires being difficult to extinguish.
[0056] The electric vehicle fire detection and fire prevention device is suitable for situations where it is convenient to install the previous three electric vehicle fire detection and fire prevention devices.
[0057] The accompanying drawings and embodiments illustrate the principles and design features of this patent, which can be easily replicated by those skilled in the art. This patent is characterized by its simple installation and operation, practicality, and reliability. Mass production and public availability will significantly improve safety when charging electric bicycles and new energy vehicles. It offers both high economic and social benefits.
[0058] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All modifications made according to the spirit and essence of the main technical solution of the present invention should be covered within the scope of protection of the present invention.
Claims
1. A fire detection and prevention device for electric vehicles, characterized in that: It includes controller A and fire protection device 1. Fire protection device 1 includes fire detection device A (7), fire blanket tube A (2), fire blanket tube A base (10), fire blanket tube A positioning shaft (12), and fire blanket A (1). The fire blanket tube A base (10) is a disc. The fire blanket tube A positioning shaft (12) is vertically fixed at the center of the fire blanket tube A base (10). The fire blanket tube A (2) has a round hole at the center of the shaft and is connected to the fire blanket tube A positioning shaft (12) through a bearing. The fire blanket tube A (2) can rotate freely around the fire blanket tube A positioning shaft (12). The fire blanket A (1) is a rectangular fire blanket. The tail of the fire blanket A (1) is fixed on the fire blanket tube A (2). Then the fire blanket A (1) is rolled on the fire blanket tube A (2). (1) The head end is connected to a fixed rod A (3). A gear (4) is set at the bottom of the fixed rod A (3). The gear (4) is connected to the motor A. The motor A, the fire detection device A (7) and the controller A are electrically connected. A rack (5) is set on both sides of the car parking space. The gear (4) is installed on the rack (5) and used in conjunction with the rack (5). The motor A drives the gear (4) to rotate and moves forward along the rack (5), thereby driving the fixed rod A (3) and the fire blanket A (1) to move forward. A fire protection device is set on each side of the head of the car parking space. After the fire detection device A (7) detects the fire, under the control of the controller A and driven by the motor A, it automatically pulls the fire blanket A (1) in the fire protection device to the predetermined position to separate the burning car from other cars.
2. The electric vehicle fire detection and fire prevention device according to claim 1, characterized in that: It also includes a water pipe (9), an installation pipe (6), a fire extinguishing nozzle (8), and a solenoid valve; the installation pipe (6) is installed horizontally above the front of the parking space, the fire detection device A (7) is installed on the installation pipe (6) in front of the parking space, the fire extinguishing nozzle (8) is facing the car parking space, and the fire extinguishing nozzle (8) is connected to the water pipe (9) through the solenoid valve; the solenoid valve is electrically connected to the controller A; once a fire starts, the fire can be detected, and the solenoid valve can be opened in time, and the corresponding fire extinguishing nozzle (8) sprays water onto the burning electric car, which can effectively control the fire; the fire blanket tube A (2) is in the shape of an I-beam.
3. A second type of fire detection and prevention device for electric vehicles, characterized in that: It includes controller B, fire detection device B, fire blanket tube B (16), motor B, fire blanket tube B fixing frame (36), fire blanket lowering rod one (14), magnetic attractor A (40), fire blanket lowering rod one fixing frame (37), fire blanket lowering rod two (15), magnetic attractor B, fire blanket lowering rod two fixing frame, fire blanket B (13); Fire detection device B, magnetic attractor A (40), magnetic attractor B and controller B are electrically connected; Fire blanket tube B (16) is used to roll the middle part of fire blanket B (13) in the shape of an I-beam. Fire blanket tube B fixing bracket (36) is fixed above the parking space like a fluorescent lamp fixing base. It is installed in the front and back direction. Fire blanket tube B (16) is installed in the front and back direction on the tube seat A (34) of fire blanket tube B fixing bracket (36) and can rotate freely. Furthermore, a bearing is installed in tube seat A (34) so that fire blanket tube B (16) rotates more smoothly. The head shaft of fire blanket tube B (16) is connected to motor B. Fire blanket lowering rod one fixing bracket (37) and fire blanket lowering rod two fixing bracket are the same. They are fixed in the front and back direction above the left and right sides of the parking space, and their shapes are the same as fire blanket tube B fixing bracket (36). The two ends of fire blanket lowering rod one (14) are respectively connected to the tube seat B at the two ends of fire blanket lowering rod one fixing bracket (37). (43) Fire blanket drop rod 1 (14) is divided into two sections by connecting shaft (41): fire blanket drop rod 1 section A (38) and fire blanket drop rod 1 section B (39). The head of fire blanket drop rod 1 section A (38) is connected to the head tube seat B (43) of the fire blanket drop rod 1 fixing frame (37) by shaft. The tail of fire blanket drop rod 1 section B (39) is connected to the tail tube seat B (43) of the fire blanket drop rod 1 fixing frame (37) by shaft. The tail of fire blanket drop rod 1 section A (38) and the head of fire blanket drop rod 1 section B (39) are connected by magnetic attractor A (40). Fire blanket drop rod 2 has the same structure as fire blanket drop rod 1. When installing fire blanket B (13), it is hung approximately symmetrically on fire blanket lowering rod one (14) and fire blanket lowering rod two (15). At this time, magnetic attractor A (40) and magnetic attractor B are attracted, and fire blanket lowering rod one (14) and fire blanket lowering rod two (15) are like a single rod. Fire blanket tube B (16) is located above fire blanket B (13). The entire fire blanket B (13) is rolled onto fire blanket tube B (16) until the two ends of fire blanket B (13) are about to meet fire blanket lowering rod one (14) and fire blanket lowering rod two (15). Stainless steel tubes B (17) are connected to the left and right ends of fire blanket B (13). The rotation of motor B moves the fire blanket B (13) rolled onto fire blanket tube B (16). The entire blanket is released, and the photoelectric switch installed on the fire blanket tube B fixing bracket (36) is used to detect whether it is fully released. The photoelectric switch is electrically connected to the controller B. The controller B controls the magnetic attractor A and the magnetic attractor B to open, the middle connection between the fire blanket lowering rod one and the fire blanket lowering rod two is released, and the fire blanket B falls down completely, covering the car to prevent the burning car from burning other cars on the left and right sides.
4. The second electric vehicle fire detection and prevention device according to claim 3, characterized in that: It also includes an electric fire blanket roller shutter A and an electric fire blanket roller shutter B. Fire blanket roller shutter A is installed at the head of the parking space, and fire blanket roller shutter B is installed at the tail of the parking space. The structure of fire blanket roller shutter A and fire blanket roller shutter B is the same as that of the electric roller shutter used in daily life. Electric fire blanket roller shutter A, electric fire blanket roller shutter B and controller B are electrically connected.
5. The second electric vehicle fire detection and prevention device according to claim 3, characterized in that: Two parallel rollers, roller A and roller B, are installed between the tube seat B (43) at both ends of the first fixed frame (37) of the fire blanket lowering rod and the tube seat C at both ends of the second fixed frame of the fire blanket lowering rod. The two rollers can rotate freely. The heads of the fire blanket C and fire blanket D are connected to roller A and roller B respectively, and the fire blanket C and fire blanket D are rolled on roller A and roller B respectively. The tail ends of the fire blanket C and fire blanket D are connected to two stainless steel pipes A respectively. The two stainless steel pipes A and two stainless steel pipes B (17) are connected and form a rectangle. In this way, when the fire blanket B (13) falls completely, the fire blanket C and fire blanket D fall together and block the front and rear of the burning car.
6. A fire detection and prevention device for electric vehicles, characterized in that: It includes controller C, fire detection device C, car fireproof cover, car fireproof cover lifting mechanism, and motor C; The fire detection device C, motor C, and controller C are electrically connected; motor C is connected to the vehicle fireproof cover lifting mechanism. The car fireproof cover is a rectangular cover made of fireproof material. The size of the rectangle at the bottom of the cover is the same as the size of the rectangle of the car parking space. The height of the car fireproof cover is adapted to the height of the car. The bottom of the car fireproof cover is composed of stainless steel pipes C (18) forming a rectangular frame. The four corners of the rectangular frame are connected to the car fireproof cover lifting mechanism by ropes. The car fireproof cover lifting mechanism is installed above the car parking space. Normally, the car fireproof cover is lifted by the car fireproof cover lifting mechanism driven by motor C. When an electric vehicle fire occurs, the fire detection device C detects it and the controller C controls the motor C to drive the car fireproof cover lifting mechanism to lower the car fireproof cover, which covers the burning car parked in the car parking space. This can effectively prevent the flames from spreading to other cars in adjacent locations.
7. The electric vehicle fire detection and fire prevention device three according to claim 6, characterized in that: The technical solution of the lifting mechanism of the car fireproof cover is as follows: the two left corners of the rectangular frame of the stainless steel tube of the car fireproof cover are connected by a rope A (19), and a hanging ring A (21) is fixed on the rope A (19). Similarly, the two right corners of the rectangular frame of the stainless steel tube of the car fireproof cover are connected by a rope B (20), and a hanging ring B (22) is fixed on the rope B (20). The lengths of the ropes A (19) and B (20) are such that after the ropes A (19) and B (20) are tightened, the hanging rings A (21) and B (22) are close together. At this time, the center of gravity of the entire car fireproof cover is between the hanging rings A (21) and B (22). At this time, the upper part of the rectangular frame of the stainless steel tube of the car fireproof cover is pressed under the ropes A (19) and B (20). Then, the hanging ring A is hung by the automatic detachment hook. (21) and lifting ring B (22), the automatic detachment hook is connected by rope to the pulley A fixed above the lifting ring A (21) and lifting ring B (22), and the pulley A is connected to the motor C; At this time, a rectangular support cloth A (23) is also provided on the left and right sides of the rectangular frame of the stainless steel tube of the fireproof cover. The support cloth A (23) is connected to the iron strips (24) of the support cloth A on the left and right sides. Magnetic attractors C (25) and magnetic attractors D (26) are also provided on the left and right sides of the rectangular frame of the stainless steel tube of the fireproof cover. Magnetic attractors C (25) and magnetic attractors D (26) correspond to the two iron strips (24) of the support cloth A. The support cloth A 23 blocks the middle part of the left and right sides of the rectangular frame of the stainless steel tube of the fireproof cover. A position switch A is also provided. The position switch A is set on the automatic detachment hook or on the rectangular frame of the stainless steel tube of the fireproof cover. The position switch A and the controller C are electrically connected. The support cloth A (23) can prevent the upper part of the stainless steel tube rectangular frame of the car fireproof cover from sinking downwards. The car fireproof cover is compressed between the support cloth A (23) and rope A (19) and rope B (20) to minimize its volume. The car fireproof cover is lifted by the car fireproof cover lifting mechanism and placed above the car parking space. When an electric vehicle fire occurs, the fire detection device C detects it and the controller C controls the rotation of the motor C to drive the pulley A to rotate, thereby causing the automatic detachment hook to descend and drive the car fireproof cover stainless steel tube rectangular frame to descend, and put the car fireproof cover down. When the support cloth A encounters the top of the car, the automatic detachment hook automatically releases and automatically detaches from the lifting ring A and lifting ring B. At the same time, the position switch A detects it and then releases the magnetic attractor C and magnetic attractor D. The car fireproof cover continues to fall under the action of the weight of the car fireproof cover stainless steel tube rectangular frame until it reaches the ground, completely covering the burning car and preventing the flames from spreading to other cars in adjacent positions.
8. The electric vehicle fire detection and fire prevention device three according to claim 6, characterized in that: The technical solution of the car fireproof cover lifting mechanism is as follows: three rotating shafts are set and fixed above the car parking space. The three rotating shafts are: rotating shaft A (27), rotating shaft B (28), and rotating shaft C (29). Rotating shaft A (27) is set above the left side of the car parking space and parallel to the left side line of the car parking space. Rotating shaft B (28) is set above the middle of the car parking space and parallel to rotating shaft A (27). Rotating shaft C (29) is set above the right side line of the car parking space and parallel to rotating shaft A (27). Rotating shaft B (28) is connected to motor D. Rotating shaft A (27) and rotating shaft B (28) are connected by two sprockets A (30) and transmission chain A (31). Rotating shaft C (29) and rotating shaft B (28) are connected by two sprockets B (44) and transmission chain B (45). (29) At the four corners of the rectangular frame of the stainless steel tube of the car fireproof cover, four pulleys B (32) are set respectively. The four corners of the rectangular frame of the stainless steel tube of the car fireproof cover are connected to the pulleys B (32) above by rope C (33). The synchronous rotation of the four pulleys B (32) can produce the lifting and lowering of the rectangular frame of the stainless steel tube of the car fireproof cover. The rotating shaft B (28) is driven by the motor D. At the same time, the rotating shaft A (27) and the rotating shaft C (29) are driven to rotate by two sprockets A (30), transmission chain A (31), two sprockets B (44) and transmission chain B (45), thereby driving the four pulleys B (32) to rotate synchronously. After the fire detection device C detects a fire, the controller C controls the rotation of the motor D, which drives the rotating shaft B. At the same time, the rotating shafts A and C rotate, which in turn drive the four pulleys B32 to rotate synchronously. Finally, the rectangular frame of the stainless steel tube of the car fireproof cover is lowered down to the ground, completely covering the burning car with the car fireproof cover.
9. The electric vehicle fire detection and fire prevention device three according to claim 8, characterized in that: In the aforementioned automotive fireproof cover lifting mechanism, a flat plate A is installed below the three rotating shafts to block and compress the upper part of the automotive fireproof cover section of the stainless steel tube rectangular frame. To prevent the upper part of the automotive fireproof cover stainless steel tube rectangular frame from sinking downwards, a rectangular support cloth B is installed on the left and right sides of the automotive fireproof cover stainless steel tube rectangular frame. The support cloth B blocks the middle part of the left and right sides of the automotive fireproof cover stainless steel tube rectangular frame. Support cloth B is connected to iron strips on the left and right sides. Magnetic attractors E and F are also installed on the left and right sides of the automotive fireproof cover stainless steel tube rectangular frame, corresponding to two support cloth B iron strips. The automotive fireproof cover is compressed between the flat plate A and the support cloth B, minimizing its volume. A position switch B is also installed on the automotive fireproof cover stainless steel tube rectangular frame, and the position switch B is electrically connected to the controller C. Controller C controls the rotation of motor D, which ultimately causes the rectangular frame of the stainless steel tube of the car fireproof cover to descend, lowering the car fireproof cover. When the support cloth B touches the top of the car, it is detected by position switch B, which then releases magnetic catchers C and D. Under the weight of the rectangular frame of the stainless steel tube, the car fireproof cover continues to fall until it reaches the ground.
10. A fire detection and prevention device for electric vehicles, characterized in that: It is a car fireproof cover B; The car fireproof cover B is a rectangular cover made of fire-resistant material, such as a fire blanket. The rectangular size of the bottom of the cover matches the rectangular size of the car parking space, and the height of the car fireproof cover B is adapted to the height of the car. The bottom of the car fireproof cover B is surrounded by four stainless steel tubes D forming a rectangular frame. Furthermore, the bottom of the car fireproof cover B has four holes for the fire blanket, allowing the stainless steel tubes D to be easily inserted and removed. This way, the car fireproof cover B does not take up much space when not in use, and when needed, the four stainless steel tubes D are simply inserted into the four holes in the fire blanket.