An underwater sealing and automatic fire extinguishing device for a battery car charging pile
Patent Information
- Application Number
- CN202611135914.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-29
- Publication Date
- 2026-10-09
AI Technical Summary
[0003]目前，传统的灭火方式大多依赖干粉灭火器、气体灭火器等，然而，这些方式在应对电瓶车锂电池火灾时，难以深入电池内部，灭火不彻底，极易复燃，因电池内部持续的热失控反应，无法有效阻断反应进程，导致火灾反复发生，不仅会造成电瓶车本身的严重损毁，还可能引燃周边其他车辆和易燃物，导致火灾规模扩大，造成巨大的经济损失；其次，传统灭火方式所采用的灭火材料，如干粉灭火器产生的有毒粉尘，以及部分气体灭火器可能残留的化学物质，不仅对人体健康有害，还会对周边环境造成污染，火灾过后，清理这些有毒粉尘和化学残留需要耗费大量的人力、物力，且清理过程复杂繁琐；另外，传统灭火系统结构复杂，需要铺设复杂的消防管路和供水系统，不仅施工难度大，成本高昂，而且对场地条件要求苛刻，难以适配各类电瓶车充电桩场景
[0017]（一）本发明通过锁定机构、按钮和传感器的组合，并且采用自动和手动的双重触发模式，火情发生后瞬间解锁，电动伸缩插杆和电动推杆迅速回收，将放有起火电瓶车的承载板迅速带入蓄水基坑内，采用水浸密封灭火方式，通过水封隔绝氧气，快速扑灭锂电池明火，同时，利用水的良好热传导性能，对电池进行全面、快速的冷却，有效阻断电池内部的热失控反应，从根源上解决了传统灭火方式灭火不彻底、易复燃的问题，最大限度降低火灾损失；
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Figure CN122874843A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of charging safety protection technology, and in particular to an underwater sealed automatic fire extinguishing device for electric vehicle charging piles. Background Technology
[0002] With the rapid increase in the number of electric bicycles, charging stations, as supporting infrastructure, have also been widely constructed and are widely distributed in densely populated places such as communities, business districts, schools, and hospitals. As a result, the fire safety issues of electric bicycle charging stations have become increasingly prominent.
[0003] Currently, traditional fire extinguishing methods mostly rely on dry powder fire extinguishers and gas fire extinguishers. However, when dealing with lithium battery fires in electric bicycles, these methods are difficult to penetrate deep into the battery, resulting in incomplete extinguishing and a high risk of reignition. Due to the continuous thermal runaway reaction inside the battery, the reaction process cannot be effectively stopped, leading to repeated fires. This not only causes severe damage to the electric bicycle itself but may also ignite other nearby vehicles and flammable materials, causing the fire to expand and resulting in huge economic losses. Secondly, the extinguishing materials used in traditional fire extinguishing methods, such as the toxic dust produced by dry powder fire extinguishers and the chemical residues that may remain in some gas fire extinguishers, are not only harmful to human health but also pollute the surrounding environment. After a fire, cleaning up these toxic dust and chemical residues requires a lot of manpower and resources, and the cleanup process is complex and tedious. In addition, traditional fire extinguishing systems have complex structures, requiring the laying of complex fire pipelines and water supply systems. This is not only difficult and costly to construct but also has stringent requirements for site conditions, making it difficult to adapt to various electric bicycle charging station scenarios. Summary of the Invention
[0004] The purpose of this invention is to provide an underwater sealed automatic fire extinguishing device for electric vehicle charging piles, thereby solving the technical problems existing in the prior art.
[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:
[0006] An underwater sealed automatic fire extinguishing device for electric vehicle charging piles includes: a water storage pit, a support plate installed at the top opening of the water storage pit, and a carrier plate connected to the support plate via a locking mechanism; the water storage pit has a pre-set receiving chamber filled with fire extinguishing water; the support plate has multiple rectangular through holes, which are connected to the carrier plate via the locking mechanism; multiple holes are formed on both sides of the carrier plate; the locking mechanism is provided on the support plate at positions corresponding to the holes, and the locking mechanism can be inserted into the holes; sensors are embedded at both ends of the support plate, which are used to detect fire signals and are electrically connected to the locking mechanism.
[0007] Furthermore, the water storage pit is provided with multiple grids in sequence inside, which divide the accommodating chamber into multiple independent areas, and the area of each independent area is adapted to the area of the rectangular through hole.
[0008] Furthermore, the inner wall of the water storage pit is provided with multiple electric push rods, the telescopic ends of which are connected to the bearing plate and electrically connected to the sensor.
[0009] Furthermore, the locking mechanism includes: a lock body disposed in the mounting chamber of the support plate and an electric telescopic rod connected to the lock body; the mounting chamber is hinged to the cover plate, and one end corresponds to the position of the hole; an electromagnetic actuator is provided on one side of the lock body and is drivenly connected to the electric telescopic rod, the electromagnetic actuator is electrically connected to a signal receiver, and is used to drive the electric telescopic rod to extend or retract; the electric telescopic rod is connected to the lock body through a rod storage cylinder.
[0010] Furthermore, the lock body is equipped with a manual operation fork.
[0011] Furthermore, a support platform is provided on one side of the water storage pit, and multiple columns are provided on the support platform along its axial direction, with charging piles provided between the columns.
[0012] Furthermore, a button is provided on the working surface at the top of the column, and the button is electrically connected to the electromagnetic actuator.
[0013] Furthermore, a camera is installed at one end of the column.
[0014] Furthermore, a drainage pipe is installed on one side of the water storage pit, and a solenoid valve is installed on the drainage pipe.
[0015] Furthermore, limiting holes are provided at the four corners of the water storage pit; a limiting rod is provided at the bottom of the support plate, and the limiting holes can be inserted into the limiting holes.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] (i) This invention combines a locking mechanism, a button, and a sensor, and employs both automatic and manual triggering modes. Upon the occurrence of a fire, the mechanism unlocks instantly, and the electric telescopic rod and electric push rod are quickly retracted. This rapidly brings the support plate containing the burning electric vehicle into the water storage pit. The water immersion sealing method is used to extinguish the fire quickly by isolating oxygen through a water seal. Simultaneously, the excellent thermal conductivity of water is used to cool the battery comprehensively and rapidly, effectively preventing thermal runaway reactions inside the battery. This fundamentally solves the problems of incomplete extinguishing and easy reignition in traditional fire extinguishing methods, minimizing fire losses.
[0018] (ii) The present invention has a simple structure, is easy to construct, has low material costs, and is easy to maintain. It does not require complicated fire-fighting pipelines and water supply systems, and is suitable for various electric vehicle charging pile scenarios.
[0019] (iii) This invention uses water to extinguish fires, without toxic dust or chemical residues, and is easy to clean up afterward, without polluting the surrounding environment; the water used for extinguishing fires can be replaced regularly and reused, thus saving water resources. Attached Figure Description
[0020] Figure 1 This is a perspective view of an underwater sealed automatic fire extinguishing device for an electric vehicle charging pile disclosed in this invention.
[0021] Figure 2 This is a top view of an underwater sealed automatic fire extinguishing device for electric vehicle charging piles disclosed in this invention.
[0022] Figure 3 This is a side view of an underwater sealed automatic fire extinguishing device for electric vehicle charging piles disclosed in this invention.
[0023] Figure 4 This is a partial schematic diagram of the connection between the support plate and the bearing plate of an underwater sealed automatic fire extinguishing device for electric vehicle charging piles disclosed in this invention.
[0024] Figure 5 This is a schematic diagram of the internal structure of the water storage pit of an underwater sealed automatic fire extinguishing device for electric vehicle charging piles disclosed in this invention.
[0025] Figure 6 This is a perspective view of the locking mechanism of an underwater sealed automatic fire extinguishing device for electric vehicle charging piles disclosed in this invention.
[0026] In the diagram: 1. Water storage pit; 101. Receiving chamber; 102. Drainage pipe; 103. Limiting hole; 2. Support plate; 201. Limiting rod; 202. Rectangular through hole; 3. Charging pile; 4. Bearing plate; 5. Locking mechanism; 501. Lock body; 502. Electromagnetic actuator; 503. Signal receiver; 504. Pole storage tube; 505. Electric telescopic pole; 506. Manual operation fork; 507. Cover plate; 6. Column; 7. Button; 8. Camera; 9. Electric vehicle; 10. Grille; 11. Electric push rod; 12. Sensor; 13. Support platform. Detailed Implementation
[0027] To make the content of this invention easier to understand, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0028] like Figure 1-3 As shown, this embodiment provides an underwater sealed automatic fire extinguishing device for electric vehicle charging piles, including: a water storage pit 1, a support plate 2 installed at the top opening of the water storage pit 1, and a carrier plate 4 connected to the support plate 2 via a locking mechanism 5; the water storage pit 1 has a preset receiving chamber 101, which is filled with fire extinguishing water; the depth of the receiving chamber 101 is greater than the height of the electric vehicle 9, and its inner wall and bottom surface are covered with a high-density polyethylene sealing plastic plate, which has excellent waterproof, corrosion resistance and impact resistance; the support plate 2 is integrally cut from hot-rolled steel plate, and the surface is treated with hot-dip galvanizing for corrosion protection; multiple rectangular through holes 202 are opened on the support plate 2, and the rectangular through holes 202 are connected to the carrier plate 4 via the locking mechanism 5; multiple holes are opened on both sides of the carrier plate 4; the surface of the carrier plate 4 is pressed with a diamond-shaped anti-slip texture, which can provide... To effectively prevent the electric vehicle 9 from slipping during parking and charging; the support plate 2 is provided with a locking mechanism 5 at the position corresponding to the hole, and the locking mechanism 5 can be inserted into the hole; the locking mechanism 5 is used to support the bearing plate 4; sensors 12 are embedded at both ends of the support plate 2, and the sensors 12 are used to detect fire signals and are electrically connected to the locking mechanism 5; the sensors 12 are composite sensors, consisting of a smoke sensor, an infrared temperature sensor and an ultraviolet flame sensor, which can simultaneously monitor the smoke concentration, ambient temperature and flame spectral characteristics of the charging area, realize multi-dimensional cross-verification of fire, and effectively reduce the false alarm rate; the above sensors are all existing technologies, and will not be described in detail here; the water storage pit 1 has limiting holes 103 at the four corners; the support plate 2 has a limiting rod 201 at the bottom end, and the limiting holes 103 can be inserted into the limiting holes 103 to provide stable support for the support plate 2.
[0029] like Figure 4-5As shown, the water storage pit 1 is provided with multiple grids 10 in sequence inside. The grids 10 divide the accommodating chamber 101 into multiple independent areas. The area of the independent areas is adapted to the area of the rectangular through hole 202. This ensures that the batteries falling from the corresponding support plate 4 can accurately fall into the dedicated compartment and be completely submerged. This solves the technical problems such as easy drifting and collision after multiple electric vehicles 9 fall into the water, mutual interference of fires in multiple vehicle positions, and insufficient power for the support plate to flip. It significantly improves the fire extinguishing reliability and operational stability of the device. The inner wall of the water storage pit 1 is provided with multiple electric push rods 11. The telescopic ends of the electric push rods 11 are connected to the bearing plate 4 and electrically connected to the sensor 12. When the electric push rod 11 is fully extended, it lifts the bearing plate 4 horizontally and keeps it stable. At this time, the locking mechanism 5 is in a locked state. When the sensor 12 detects a fire signal and transmits it to the locking mechanism 5, the locking mechanism 5 unlocks. Then, it immediately sends a retraction command to the corresponding electric push rod 11, and the electric push rod 11 retracts at maximum speed, quickly pulling the bearing plate 4 into the receiving chamber 101.
[0030] like Figure 6 As shown, the locking mechanism 5 includes: a lock body 501 disposed in the mounting chamber of the support plate 2 and an electric telescopic rod 505 connected to the lock body 501; the mounting chamber is hinged to the cover plate 507, and one end corresponds to the position of the hole; the operator can directly operate the locking mechanism 5 after opening the cover plate 507; an electromagnetic actuator 502 is provided on one side of the lock body 501 and is drivenly connected to the electric telescopic rod 505; the electromagnetic actuator 502 is electrically connected to the signal receiver 503 and is used to drive the electric telescopic rod 505 to extend or retract; the electric telescopic rod 505 is connected to the lock body 501 through a rod storage cylinder 504. The lock body 501 is equipped with a manual operation fork 506. When the sensor 12 detects a fire signal and transmits it to the control unit, the control unit immediately sends an unlocking signal to the signal receiver 503 of the corresponding locking mechanism 5. The electromagnetic actuator 502 is energized and pulls the electric telescopic rod 505 to retract quickly, so that the bearing plate 4 falls vertically into the receiving chamber 101 of the water storage pit 1 under the action of gravity. The manual operation fork 506 is set so that in the event of power failure or sensor 12 failure, the operator can manually operate the fork 506 to drive the electric telescopic rod 505 to retract, thereby achieving manual unlocking and ensuring that the device can be used under any circumstances.
[0031] A support platform 13 is provided on one side of the water storage pit 1. Multiple columns 6 are arranged along the axial direction on the support platform 13, and charging piles 3 are installed between the columns 6. The charging piles 3 are the most common charging devices in existing technology, and their specific structure will not be described in detail here. A button 7 is provided on the working surface at the top of each column 6. The button 7 is electrically connected to the electromagnetic actuator 502. In special circumstances, such as when the sensor 12 malfunctions but a fire hazard is detected, the operator can press this button 7 to send a signal to the electromagnetic actuator 502, thereby controlling the locking mechanism 5 to perform the corresponding operation, unlocking the support plate 4, and ensuring that the fire extinguishing device can function promptly. A camera 8 is provided at one end of each column 6. The camera 8 can monitor the charging area in real time. Whether it is a normal charging process or a potential fire hazard, the camera 8 can clearly capture the situation and transmit the image information in real time, facilitating remote observation and decision-making by relevant personnel, further improving the safety and controllability of the entire device.
[0032] A drainage pipe 102 is provided on one side of the water storage pit 1, and a solenoid valve is provided on the drainage pipe 102.
[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. An underwater sealed automatic fire extinguishing device for electric vehicle charging piles, characterized in that: include: Water storage pit (1), support plate (2) installed at the top opening of the water storage pit (1), and bearing plate (4) connected to the support plate (2) by locking mechanism (5). The water storage pit (1) has a pre-set receiving chamber (101), which is filled with fire extinguishing water; The support plate (2) has multiple rectangular through holes (202), which are connected to the bearing plate (4) through the locking mechanism (5). The bearing plate (4) has multiple holes on both sides. The locking mechanism (5) is provided on the support plate (2) at the position corresponding to the hole, and the locking mechanism (5) can be inserted into the hole; Sensors (12) are embedded at both ends of the support plate (2). The sensors (12) are used to detect fire signals and are electrically connected to the locking mechanism (5).
2. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 1, characterized in that: The water storage pit (1) is provided with multiple grids (10) in sequence. The grids (10) divide the accommodating chamber (101) into multiple independent areas. The area of the independent areas is adapted to the area of the rectangular through hole (202).
3. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 2, characterized in that: The inner wall of the water storage pit (1) is provided with multiple electric push rods (11). The telescopic end of the electric push rod (11) is connected to the bearing plate (4) and electrically connected to the sensor (12).
4. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 1, characterized in that: The locking mechanism (5) includes: a lock body (501) disposed in the mounting chamber of the support plate (2) and an electric telescopic rod (505) connected to the lock body (501); the mounting chamber is hinged to the cover plate (507), and one end corresponds to the position of the hole; an electromagnetic actuator (502) is provided on one side of the lock body (501) and is connected to the electric telescopic rod (505) for transmission; the electromagnetic actuator (502) is electrically connected to the signal receiver (503) and is used to drive the electric telescopic rod (505) to extend and retract; the electric telescopic rod (505) is connected to the lock body (501) through a rod storage tube (504).
5. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 4, characterized in that: The lock body (501) is provided with a manual operation fork (506).
6. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 4, characterized in that: A support platform (13) is provided on one side of the water storage pit (1), and multiple columns (6) are provided on the support platform (13) along its axial direction. Charging piles (3) are provided between the columns (6).
7. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 6, characterized in that: The top working surface of the column (6) is provided with a button (7), which is electrically connected to the electromagnetic actuator (502).
8. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 6 or 7, characterized in that: A camera (8) is provided at one end of the column (6).
9. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 1, characterized in that: A drainage pipe (102) is opened on one side of the water storage pit (1), and a solenoid valve is provided on the drainage pipe (102).
10. The underwater sealed automatic fire extinguishing device for electric vehicle charging piles according to claim 1, characterized in that: The water storage pit (1) has limiting holes (103) at its four corners; the support plate (2) has a limiting rod (201) at its bottom end, and the limiting holes (103) can be inserted into the limiting holes (103).