Aerosol fire extinguishing device matched with charging station

Abstract

The utility model relates to the technical field of charging station fire fighting, and discloses an aerosol fire extinguishing device matched with a charging station, which comprises a plurality of groups of mounting components (1) positioned at the top of the charging station and aerosol fire extinguishers (2) detachably connected with the mounting components (1), and steel wire ropes (3) are arranged between the mounting components (1) and the aerosol fire extinguishers (2). The aerosol fire extinguisher (2) is separated from the mounting assembly (1) and is suspended to the two sides of the charging electric bicycle through the steel wire rope (3); the fire extinguishing device is suspended to the two sides of the charging electric bicycle through the steel wire rope to conduct targeted fire extinguishing work, and efficient starting and rapid fire suppression are achieved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology for charging stations, specifically to an aerosol fire extinguishing device for charging stations. Background Technology

[0002] Electric bicycles primarily use lithium-ion batteries. Insufficient negative electrode capacity, excessive moisture content, and reactions with lithium can lead to overcharging of the battery cell, generating gas, causing internal short circuits and high-current discharge, resulting in excessive heat, burning the separator, and ultimately, fire or explosion. When an electric bicycle catches fire due to battery thermal runaway, the extinguishing agent must be continuously sprayed for at least 10 minutes under the suppression of the fire, and the battery must not reignite for 30 minutes after the extinguishing agent has been completely sprayed.

[0003] Currently, fire suppression systems for electric bicycles primarily rely on manual aerosol fire extinguishers, which pose certain risks to firefighters. Furthermore, conventional fire extinguishers (such as the one described in application number 201310554901.0) cannot quickly extinguish fires in the event of thermal runaway. Therefore, this paper proposes an aerosol fire suppression device for charging stations to address these issues. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an aerosol fire extinguishing device for charging stations. The fire extinguishing device is suspended to both sides of the charging electric bicycle by steel wire ropes to carry out targeted fire extinguishing work, and can quickly suppress the fire by activating efficiently.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The charging station is equipped with an aerosol fire extinguishing device, which includes several sets of mounting components located at the top of the charging position and aerosol fire extinguishers that can be detachably connected to the mounting components. A steel wire rope is provided between the mounting components and the aerosol fire extinguishers. In the event of a fire, the aerosol fire extinguishers are separated from the mounting components and suspended by the steel wire rope to both sides of the charging electric bicycle.

[0007] Preferably, the mounting assembly includes a mounting base mounted on the aerosol fire extinguisher and a base connected to the mounting base. The base has a receiving cavity, and a first connector is provided at the bottom of the receiving cavity. The mounting base has a second connector that matches the first connector, and the first connector and the second connector are detachably connected.

[0008] Preferably, the first connector is a snap-fit ​​fastener and the second connector is a slot. In the initial state, the snap-fit ​​fastener is inserted into the slot. After a fire occurs and the fastener is subjected to an impact, the snap-fit ​​fastener is disengaged from the slot.

[0009] Preferably, the side wall of the receiving cavity is provided with a winding groove, and the steel wire rope is wound around the winding groove one turn at a time.

[0010] Preferably, the aerosol fire extinguisher includes an outer shell, with a nozzle on the side facing the electric bicycle and an impact port facing the mounting components. A main aerosol propellant column is arranged sequentially inside the outer shell on the side facing the nozzle, and a secondary aerosol propellant column is arranged inside the outer shell on the side facing the impact port. Both the main aerosol propellant column and the secondary aerosol propellant column are connected to a temperature sensor and an ignition agent.

[0011] Preferably, the temperature sensor receives a temperature signal from the heat source or an open flame signal, ignites the ignition agent, and the ignition agent sequentially activates the secondary aerosol column and the main aerosol column. The secondary aerosol column undergoes a chemical reaction and ejects reactive gas from the impact port to impact the base, causing the first connector and the second connector to separate. The main aerosol column undergoes a chemical reaction and ejects reactive gas from the nozzle to extinguish the fire.

[0012] Preferably, a plurality of cooling balls are provided between the main aerosol propellant column and the nozzle. The combustion of the main aerosol propellant column generates high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses, and is cooled by the cooling balls to maintain high pressure inside the shell. Under high pressure, the gas is ejected from the nozzle to achieve rapid fire extinguishing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The fire extinguishing device of this utility model is suspended to both sides of the charging electric bicycle by steel wire rope for targeted fire extinguishing; at the same time, the aerosol fire extinguisher's temperature detector ignites the ignition agent and quickly starts the aerosol column, which is highly efficient in starting, has a short ignition time, and can quickly suppress the fire. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the aerosol fire extinguishing system used in this charging station.

[0016] Figure 2 A schematic diagram showing the disassembled structure of the aerosol fire extinguishing device used in this charging station.

[0017] Figure 3 This is a side view of the aerosol fire extinguishing system used in this charging station.

[0018] Figure 4 This is a cross-sectional view of the aerosol fire extinguishing system used in this charging station.

[0019] In the attached diagram: 1-installation component, 11-mounting base, 12-base, 13-receiving cavity, 14-first connector, 15-second connector, 16-winding groove, 2-aerosol fire extinguisher, 21-outer shell, 22-nozzle, 23-impact nozzle, 24-main aerosol propellant, 25-secondary aerosol propellant, 26-temperature detector, 27-ignition agent, 28-cooling ball, 3-steel wire rope. Detailed Implementation

[0020] Example 1: A preferred embodiment of this utility model provides an aerosol fire extinguishing device for charging stations, including several sets of mounting components 1 located at the top of the charging position and aerosol fire extinguishers 2 detachably connected to the mounting components 1. A steel wire rope 3 is provided between the mounting components 1 and the aerosol fire extinguishers 2. When a fire occurs, the aerosol fire extinguishers 2 are separated from the mounting components 1 and suspended by the steel wire rope 3 to both sides of the charging electric bicycle for targeted fire extinguishing.

[0021] When the aerosol extinguishing agent inside the aerosol fire extinguisher 2 is ignited by the fuse, a chemical reaction occurs. This highly efficient activation method produces a large amount of inert gas, water vapor, and aerosol particles. The dense aerosol particles provide a large surface reaction area, removing the OH- carrier required for the combustion chain. - and H + The fire cannot continue to burn, thus achieving a rapid fire extinguishing effect and quickly suppressing the fire.

[0022] The installation assembly 1 includes an installation base 11 mounted on the aerosol fire extinguisher 2 and a base 12 connected to the installation base 11. The base 12 has a receiving cavity 13, and the bottom of the receiving cavity 13 has a first connector 14. The installation base 11 has a second connector 15 that matches the first connector 14. The first connector 14 and the second connector 15 are detachably connected.

[0023] The aerosol fire extinguisher 2 includes an outer shell 21. The outer shell 21 has a nozzle 22 facing the electric bicycle and an impact port 23 facing the mounting component 1. The main aerosol propellant column 24 is arranged sequentially inside the outer shell 21 on the side facing the nozzle 22, and a secondary aerosol propellant column 25 is arranged inside the outer shell 21 on the side facing the impact port 23. Both the main aerosol propellant column 24 and the secondary aerosol propellant column 25 are connected to a temperature detector 26 and an ignition agent 27.

[0024] The temperature sensor 26 receives a temperature signal or an open flame signal from the heat source and ignites the ignition agent 27. The ignition agent 27 sequentially activates the secondary aerosol column 25 and the main aerosol column 24. The secondary aerosol column 25 undergoes a chemical reaction and ejects reactive gas from the impact port 23 to impact the base 12, causing the first connector 14 and the second connector 15 to separate. The main aerosol column 24 undergoes a chemical reaction and ejects reactive gas from the nozzle 22 to extinguish the fire.

[0025] A plurality of cooling balls 28 are provided between the main aerosol propellant column 24 and the nozzle 22. The combustion of the main aerosol propellant column 24 generates high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses, and is cooled by the cooling balls 28 to keep the pressure inside the shell continuously high. Under high pressure, it is ejected from the nozzle 22 to achieve rapid fire extinguishing.

[0026] Upon receiving a temperature signal from a heat source or an open flame signal, the temperature detector 26 ignites the ignition agent 27. The ignition agent 27 triggers the ignition of the secondary aerosol column 25, which in turn activates the main aerosol column 24. The combustion of the aerosol extinguishing agent within the main aerosol column 24 generates high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses, where they are cooled by the cooling ball 28. The cooling ball 28 occupies a large amount of space, limiting the gas passage space within the cooling zone, thereby maintaining continuous high pressure within the outer shell 1 and improving the combustion effect of the aerosol extinguishing agent.

[0027] Example 2: A preferred embodiment of this utility model provides an aerosol fire extinguishing device for charging stations. The only difference between this embodiment and the one described above is that the first connector 14 is a plug-in buckle and the second connector 15 is a slot. In the initial state, the plug-in buckle is inserted into the slot. After a fire occurs and the device is subjected to an impact, the plug-in buckle is disengaged from the slot.

[0028] Example 3: A preferred embodiment of this utility model provides an aerosol fire extinguishing device for charging stations. The only difference between this embodiment and the one described above is that the side wall of the receiving cavity 13 is provided with a winding groove 16, and the steel wire rope 3 is wound around the winding groove 16 one turn at a time.

[0029] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An aerosol fire extinguishing device for charging stations, characterized in that, It includes several sets of mounting components (1) located at the top of the charging position and aerosol fire extinguishers (2) that can be detachably connected to the mounting components (1). A steel wire rope (3) is provided between the mounting components (1) and the aerosol fire extinguishers (2). When a fire occurs, the aerosol fire extinguishers (2) are separated from the mounting components (1) and suspended by the steel wire rope (3) to both sides of the charging electric bicycle.

2. The aerosol fire extinguishing device for charging stations according to claim 1, characterized in that, The installation assembly (1) includes an installation base (11) installed on the aerosol fire extinguisher (2) and a base (12) connected to the installation base (11). The base (12) has a receiving cavity (13) and a first connector (14) at the bottom of the receiving cavity (13). The installation base (11) has a second connector (15) that matches the first connector (14). The first connector (14) and the second connector (15) are detachably connected.

3. The aerosol fire extinguishing device for charging stations according to claim 2, characterized in that, The first connector (14) is a plug-in buckle, and the second connector (15) is a slot. In the initial state, the plug-in buckle is inserted into the slot. After a fire occurs and the buckle is subjected to impact, the plug-in buckle is dislodged from the slot.

4. The aerosol fire extinguishing device for charging stations according to claim 2, characterized in that, The side wall of the receiving cavity (13) is provided with a winding groove (16), and the steel wire rope (3) is wound around the winding groove (16) one turn at a time.

5. The aerosol fire extinguishing device for charging stations according to claim 2, 3, or 4, characterized in that, The aerosol fire extinguisher (2) includes an outer shell (21). The outer shell (21) has a nozzle (22) facing the electric bicycle and an impact port (23) facing the mounting assembly (1). The inner side of the outer shell (21) facing the nozzle (22) is provided with a main aerosol column (24) and the inner side of the outer shell (21) facing the impact port (23) is provided with a secondary aerosol column (25). Both the main aerosol column (24) and the secondary aerosol column (25) are connected to a temperature detector (26) and an ignition agent (27).

6. The aerosol fire extinguishing device for charging stations according to claim 5, characterized in that, The temperature sensor (26) receives the temperature signal or open flame signal from the heat source and ignites the ignition agent (27). The ignition agent (27) sequentially activates the secondary aerosol column (25) and the main aerosol column (24). The secondary aerosol column (25) undergoes a chemical reaction and ejects reactive gas from the impact port (23) to impact the base (12), causing the first connector (14) and the second connector (15) to separate. The main aerosol column (24) undergoes a chemical reaction and ejects reactive gas from the nozzle (22) to extinguish the fire.

7. The aerosol fire extinguishing device for charging stations according to claim 5, characterized in that, Several cooling balls (28) are provided between the main aerosol propellant column (24) and the nozzle (22). The main aerosol propellant column (24) burns to generate high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses. The cooling balls (28) cool the gas to keep the shell under high pressure. The gas is then ejected from the nozzle (22) under high pressure to achieve rapid fire extinguishing.

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