Fire extinguishing device special for lithium ion battery
By designing a dedicated fire extinguishing device for lithium-ion batteries, and utilizing components such as control cabinets, chemical tanks, flame detectors, and smoke detectors, automated fire extinguishing is achieved, solving the problem of flame spread after a fire in a new energy vehicle and improving fire extinguishing efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING GUIHUA ELECTRIC POWER TECH CO LTD
- Filing Date
- 2026-02-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing parking lots lack dedicated fire extinguishing equipment for lithium-ion batteries, which makes it easy for fires from new energy vehicles to spread, causing property damage and casualties.
A fire extinguishing device specifically designed for lithium-ion batteries was designed, comprising a control cabinet, a chemical tank, a flame detector, and a smoke detector. It achieves intelligent fire extinguishing by automatically controlling the fireproof roller shutter, sprinkler pipes, and fire protection system to work together.
After a fire breaks out in a new energy vehicle, the fire can be controlled in a timely and effective manner, significantly reducing property damage and the probability of casualties, and improving fire extinguishing efficiency and safety.
Smart Images

Figure CN121819233A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of fire extinguishing device, more particularly, the present application relates to the special fire extinguishing device for lithium ion battery. BACKGROUND
[0002] Lithium ion battery is the power battery used by most new energy vehicles, lithium ion battery has high energy storage per unit weight, longer endurance under the same volume, the existing parking space is not configured with a special fire extinguishing device, after the new energy vehicle accidentally catches fire, the lithium ion battery of the new energy vehicle cannot be extinguished in time and effectively, which causes the fire to spread easily and causes great property loss, even causes casualties.
[0003] Therefore, the special fire extinguishing device for lithium ion battery is needed to solve the above problems. SUMMARY
[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide the special fire extinguishing device for lithium ion battery, which is provided with control cabinet, medicament tank, flame detector and smoke sensor and other structures, when the new energy vehicle accidentally catches fire, the smoke sensor and the flame detector can detect the occurrence of fire, then the control cabinet controls the fireproof curtain to be put down, the parking space is blocked, at the same time, the built-in water pump of the medicament tank is started, the medicament in the medicament tank is pumped into the bottom spray pipe and the top spray pipe, then sprayed out through the spray nozzles on the bottom spray pipe and the top spray pipe, and the fire is extinguished from the top and bottom directions, when the medicament in the medicament tank is exhausted, the battery ball valve between the fire main pipe and the medicament tank is controlled to be closed, at the same time, the battery ball valve between the fire main pipe and the fire hydrant is opened, at this time, the fire hydrant can supply water to the spray nozzles to continue to extinguish the fire and cool down, which makes the present application intelligent and high in automation, can extinguish the fire in time and effectively after the new energy vehicle accidentally catches fire, effectively avoids the spread of fire, greatly reduces the property loss, significantly reduces the probability of casualties, and makes the practical use effect of the present application better, so as to solve the problems proposed in the above background.
[0005] In order to achieve the above object, the present application provides the following technical scheme: the lithium ion battery special fire extinguishing device, including the control cabinet, the control cabinet side is provided with the reagent tank, the control cabinet side is connected with the power distribution cabinet through the wire, the reagent tank side is fixedly installed with the fire main pipeline, the fire main pipeline one end is connected with the fire hydrant through the pipeline, the fire main pipeline one side is provided with the wire slot, the wire slot outside is fixedly installed with the triangular support frame through the screw, the wire slot one side is provided with a plurality of parking spaces, the parking space one side close to the wire slot is provided with the flame detector, the parking space is provided with the smoke sensor, the parking space both sides are provided with the fire shutter, the wall outside the parking space is fixedly installed with the audible and visual alarm, the parking space is fixedly installed with the square steel support frame, the square steel support frame outside is all connected with the rubber slope, the square steel support frame surface is fixedly installed with the antiskid plate, the fire main pipeline is connected with a plurality of bottom spray pipeline and top spray pipeline, the top spray pipeline and the fire shutter are all fixedly installed with the hanging rib, the bottom spray pipeline and the top spray pipeline and the fire main pipeline connection place and the fire main pipeline and the reagent tank and the fire hydrant connection place all are provided with the electromagnetic ball valve, the bottom spray pipeline and the top spray pipeline all are provided with the spray head, the bottom spray pipeline on the spray head number is set to eight, the top spray pipeline on the spray head number is set to six, the bottom spray pipeline on the spray head is connected with the corresponding position antiskid plate, when the new energy automobile is accidentally on fire, the smoke sensor and the flame detector can detect the fire, then the control cabinet controls the fire shutter to put down, the parking space is blocked, at the same time, the built-in water pump of the reagent tank is started, the reagent in the reagent tank is pumped into the bottom spray pipeline and the top spray pipeline, then is sprayed out through the spray head on the bottom spray pipeline and the top spray pipeline, and the fire is extinguished from the top and bottom directions, when the reagent in the reagent tank is empty, the battery ball valve between the fire main pipeline and the reagent tank is controlled to be closed, at the same time, the battery ball valve between the fire main pipeline and the fire hydrant is opened, at this time, the fire hydrant can supply water for the spray head, and the fire is continued to be extinguished and cooled.
[0006] In a preferred embodiment, the wire slot and the fire main pipeline are fixedly installed on the wall through the triangular support frame, and the reagent tank is provided with a water pump.
[0007] In a preferred embodiment, the flame detector is fixedly installed on the wall, and the flame detector is connected with the control cabinet through a wire.
[0008] In a preferred embodiment, the smoke sensor is fixedly installed on the wall, and the smoke sensor is connected with the control cabinet through a wire.
[0009] In a preferred embodiment, the fire shutter is connected with the control cabinet through a wire, and the audible and visual alarm is connected with the control cabinet through a wire.
[0010] In a preferred embodiment, the bottom spray pipe is disposed inside the square steel support frame at the corresponding position, and the top spray pipe is disposed between the two fireproof roller shutters at the corresponding position.
[0011] In a preferred embodiment, the electromagnetic ball valve is connected to the control cabinet via a wire, which is disposed inside a wire trough.
[0012] In a preferred embodiment, the eight spray nozzles on the bottom spray pipe are symmetrically distributed on the anti-slip plate, and the six spray nozzles on the top spray pipe are distributed on both sides of the parking space.
[0013] The technical effects and advantages of this invention are as follows: This invention, with its control cabinet, agent tank, flame detector, and smoke detector, allows for timely and effective fire suppression in the event of an accidental fire in a new energy vehicle. The smoke detector and flame detector detect the fire, and the control cabinet lowers the fireproof roller shutter to block the vehicle. Simultaneously, the built-in water pump in the agent tank activates, pumping the agent into the bottom and top sprinkler pipes. The agent is then sprayed from the sprinkler heads on these pipes, extinguishing the fire from both above and below. Once the agent tank is emptied, the battery-operated ball valve between the main fire hydrant and the agent tank is closed, while the battery-operated ball valve between the main fire hydrant and the fire hydrant opens, allowing the hydrant to supply water to the sprinkler heads for continued fire suppression and cooling. This highly intelligent and automated design enables timely and effective fire suppression in the event of an accidental fire in a new energy vehicle, effectively preventing the fire from spreading, significantly reducing property damage, and substantially lowering the probability of casualties. The practical application of this invention demonstrates its effectiveness. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2 This is a schematic diagram of the arrangement structure of the flame detector of the present invention.
[0016] Figure 3 This is a schematic diagram of the top spray pipe structure of the present invention.
[0017] Figure 4 This is a schematic diagram of the bottom spray pipe structure of the present invention.
[0018] Figure 5 This is a schematic diagram showing the location and structure of the top spray pipe and bottom spray pipe of the present invention.
[0019] Figure 6 This is a schematic diagram of the fireproof roller shutter structure of the present invention.
[0020] Figure 7 This is a schematic diagram of the triangular support frame structure of the present invention.
[0021] Figure 8 This is a schematic diagram of the square steel support frame structure of the present invention.
[0022] The attached diagram is labeled as follows: 1. Control cabinet; 2. Chemical tank; 3. Fire hydrant; 4. Distribution cabinet; 5. Main fire protection pipeline; 6. Cable tray; 7. Triangular support frame; 8. Flame detector; 9. Smoke detector; 10. Fireproof roller shutter; 11. Square steel support frame; 12. Rubber ramp; 13. Anti-slip plate; 14. Bottom sprinkler pipe; 15. Top sprinkler pipe; 16. Hanging rod; 17. Electromagnetic ball valve; 18. Sprinkler head. Detailed Implementation
[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 Appendix Figure 7 and attached Figure 8As shown, this invention provides a dedicated fire extinguishing device for lithium-ion batteries, including a control cabinet 1. A chemical tank 2 is located on one side of the control cabinet 1. A power distribution cabinet 4 is connected to one side of the control cabinet 1 via electrical wires. A main fire hydrant pipe 5 is fixedly installed on one side of the chemical tank 2. A fire hydrant 3 is connected to one end of the main fire hydrant pipe 5 via a pipe. A cable tray 6 is located on one side of the main fire hydrant pipe 5. A triangular support frame 7 is fixedly installed on the outside of the cable tray 6 with screws. Multiple parking spaces are located on one side of the cable tray 6. A flame detector 8 is installed on the side of each parking space closest to the cable tray 6. A fire hydrant 8 is installed on each parking space. The parking space is equipped with a smoke detector 9, fireproof roller shutters 10 on both sides, an audible and visual alarm fixedly installed on the outer wall of the parking space, a square steel support frame 11 fixedly installed on the parking space, rubber ramps 12 glued to the outer side of the square steel support frame 11, and anti-slip plates 13 fixedly installed on the surface of the square steel support frame 11. Multiple bottom sprinkler pipes 14 and top sprinkler pipes 15 are connected to the main fire hydrant pipe 5. Hanging rods 16 are fixedly installed on the top sprinkler pipes 15 and the fireproof roller shutters 10. The bottom sprinkler pipes 14 and the top sprinkler pipes 15 are connected to the fire hydrant pipes 16. Electromagnetic ball valves 17 are installed at the connection points of the main fire-fighting pipeline 5 and the connections between the main fire-fighting pipeline 5 and the chemical tank 2 and fire hydrant 3. Spray nozzles 18 are installed on both the bottom spray pipe 14 and the top spray pipe 15. The bottom spray pipe 14 has eight spray nozzles 18, and the top spray pipe 15 has six spray nozzles 18. The spray nozzles 18 on the bottom spray pipe 14 are installed through the anti-slip plate 13 at corresponding positions. When a new energy vehicle accidentally catches fire, the smoke detector 9 and the flame detector 8 can detect the fire, and then the control cabinet... 1. Control the fireproof roller shutter 10 to lower, blocking the parking space. At the same time, start the built-in water pump of the agent tank 2 to pump the agent in the agent tank 2 into the bottom sprinkler pipe 14 and the top sprinkler pipe 15. Then, the agent is sprayed out through the sprinkler heads 18 on the bottom sprinkler pipe 14 and the top sprinkler pipe 15 to extinguish the fire from both the top and bottom. When the agent in the agent tank 2 is emptied, the battery ball valve 17 between the fire main pipe 5 and the agent tank 2 is controlled to close. At the same time, the battery ball valve 17 between the fire main pipe 5 and the fire hydrant 3 is opened. At this time, the fire hydrant 3 can supply water to the sprinkler heads 18 to continue extinguishing the fire and cooling down.
[0025] The cable tray 6 and the main fire-fighting pipe 5 are both fixedly installed on the wall by the triangular support frame 7, and the medicine tank 2 has a built-in water pump.
[0026] The flame detector 8 is fixedly installed on the wall and is connected to the control cabinet 1 via wires.
[0027] The smoke detector 9 is fixedly installed on the wall and is connected to the control cabinet 1 via a wire.
[0028] The fireproof roller shutter 10 is connected to the control cabinet 1 via a wire, and the audible and visual alarm is also connected to the control cabinet 1 via a wire.
[0029] The bottom spray pipe 14 is installed inside the square steel support frame 11 at the corresponding position, and the top spray pipe 15 is installed between the two fireproof roller shutters 10 at the corresponding position.
[0030] The electromagnetic ball valve 17 is connected to the control cabinet 1 via a wire, which is located inside the wire trough 6.
[0031] The eight spray nozzles 18 on the bottom spray pipe 14 are symmetrically distributed on the anti-slip plate 13, and the six spray nozzles 18 on the top spray pipe 15 are distributed on both sides of the parking space.
[0032] The Flame Detector 8 can quickly detect open flames by identifying the flame spectrum and flicker characteristics. It has a fast response and strong anti-interference capabilities, and is suitable for early fire alarm and linkage cut-off in open or high-ceilinged spaces such as oil depots and charging areas. The smoke detector 9 monitors changes in the concentration of smoke particles in the air, providing timely warnings of smoldering and initial fires. It has a wide coverage area, is easy to install, and is suitable for linkage with smoke exhaust and broadcasting in places such as garages, corridors, and power distribution rooms.
[0033] The specific implementation method is as follows: When using this invention, the top sprinkler pipe 15 and the fireproof roller shutter 10 can be suspended on the top of the parking space using the suspension rod 16. When a new energy vehicle accidentally catches fire, the smoke detector 9 and the flame detector 8 can detect the fire. Then, the control cabinet 1 controls the fireproof roller shutter 10 to be lowered to block the parking space. At the same time, the built-in water pump of the agent tank 2 is activated to pump the agent in the agent tank 2 into the bottom sprinkler pipe 14 and the top sprinkler pipe 15, and then spray it out through the sprinkler heads 18 on the bottom sprinkler pipe 14 and the top sprinkler pipe 15, from above. Firefighting is carried out in the next two directions. After the agent in the agent tank 2 is emptied, the battery ball valve 17 between the main fire pipeline 5 and the agent tank 2 is controlled to close, and at the same time, the battery ball valve 17 between the main fire pipeline 5 and the fire hydrant 3 is opened. At this time, the fire hydrant 3 can supply water to the sprinkler head 18 to continue firefighting and cooling. This makes the invention highly intelligent and automated, and can extinguish fires in a timely and effective manner after a new energy vehicle catches fire. It can effectively prevent the fire from spreading, greatly reduce property losses, and significantly reduce the probability of casualties, making the actual use effect of the invention better.
[0034] Working principle of this invention: Refer to the instruction manual appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 Appendix Figure 7 and attached Figure 8When using this invention, the structure includes a control cabinet 1, a chemical tank 2, a flame detector 8, and a smoke detector 9. When a new energy vehicle catches fire unexpectedly, the smoke detector 9 and the flame detector 8 can detect the fire. Then, the control cabinet 1 controls the fireproof roller shutter 10 to lower, blocking the parking space. At the same time, the built-in water pump of the chemical tank 2 is activated, pumping the chemical agent in the tank 2 into the bottom spray pipe 14 and the top spray pipe 15. The agent is then sprayed out through the spray nozzles 18 on the bottom spray pipe 14 and the top spray pipe 15 from both top and bottom directions. When the agent in the agent tank 2 is emptied, the battery ball valve 17 between the main fire pipeline 5 and the agent tank 2 is closed, and at the same time the battery ball valve 17 between the main fire pipeline 5 and the fire hydrant 3 is opened. At this time, the fire hydrant 3 can supply water to the sprinkler head 18 to continue extinguishing the fire and cooling it down. This makes the invention highly intelligent and automated, and can extinguish fires in a timely and effective manner after a new energy vehicle catches fire, effectively preventing the fire from spreading, greatly reducing property losses, and significantly reducing the probability of casualties. This makes the actual use effect of the invention better.
[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fire extinguishing device specifically for lithium-ion batteries, comprising a control cabinet (1), characterized in that: A chemical tank (2) is provided on one side of the control cabinet (1). A power distribution cabinet (4) is connected to one side of the control cabinet (1) via an electric wire. A fire main pipe (5) is fixedly installed on one side of the chemical tank (2). A fire hydrant (3) is connected to one end of the fire main pipe (5) via a pipe. A cable tray (6) is provided on one side of the fire main pipe (5). A triangular support frame (7) is fixedly installed on the outside of the cable tray (6) with screws. Multiple parking spaces are provided on one side of the cable tray (6). A flame detector (8) is provided on the side of the parking space closest to the cable tray (6). A smoke detector (9) is provided on the parking space. Fireproof roller shutters (10) are provided on both sides of the parking space. A sound and light alarm is fixedly installed on the wall outside the parking space. A square steel support frame (11) is fixedly installed on the parking space. Rubber ramps (12) are glued to the outside of the square steel support frame (11). The support frame (11) is fixedly installed with anti-slip plate (13). Multiple bottom spray pipes (14) and top spray pipes (15) are connected to the main fire pipe (5). Hanging rods (16) are fixedly installed on the top spray pipe (15) and the fireproof roller shutter (10). Electromagnetic ball valves (17) are provided at the connection between the bottom spray pipe (14) and the top spray pipe (15) and the main fire pipe (5), as well as at the connection between the main fire pipe (5) and the agent tank (2) and the fire hydrant (3). Spray nozzles (18) are provided on the bottom spray pipe (14) and the top spray pipe (15). The number of spray nozzles (18) on the bottom spray pipe (14) is set to eight, and the number of spray nozzles (18) on the top spray pipe (15) is set to six. The spray nozzles (18) on the bottom spray pipe (14) are installed through the anti-slip plate (13) at the corresponding position.
2. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The cable tray (6) and the main fire-fighting pipe (5) are both fixedly installed on the wall by a triangular support frame (7), and the medicine tank (2) has a built-in water pump.
3. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The flame detector (8) is fixedly installed on the wall and is connected to the control cabinet (1) via a wire.
4. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The smoke detector (9) is fixedly installed on the wall and is connected to the control cabinet (1) via a wire.
5. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The fireproof roller shutter (10) is connected to the control cabinet (1) via a wire, and the sound and light alarm is connected to the control cabinet (1) via a wire.
6. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The bottom spray pipe (14) is installed inside the square steel support frame (11) at the corresponding position, and the top spray pipe (15) is installed between the two fireproof roller shutters (10) at the corresponding position.
7. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The electromagnetic ball valve (17) is connected to the control cabinet (1) via a wire, which is located inside the wire groove (6).
8. The fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that: The eight spray nozzles (18) on the bottom spray pipe (14) are symmetrically distributed on the anti-slip plate (13), and the six spray nozzles (18) on the top spray pipe (15) are distributed on both sides of the parking space.