Fire suppression system for electric bicycle charging station

Abstract

The utility model relates to the technical field of charging station fire fighting, and discloses a fire suppression system for an electric bicycle charging station, which comprises a plurality of groups of fixed frames (1) positioned at the top of a charging position, a detection temperature acquisition system for acquiring a temperature value of an electric bicycle, and a fire extinguishing device mounted on the fixed frames (1) and positioned right above the charging position, the detection temperature acquisition system comprises first thermocouples (2) located right above the charging positions and second thermocouples (3) located between two adjacent groups of charging positions, and the first thermocouples (2) and the second thermocouples (3) jointly acquire temperature change data of each electric bicycle being charged at the charging position; the system can quickly find the electric bicycle with abnormal temperature rise and control the fire extinguishing devices on the two sides of the electric bicycle to carry out targeted fire extinguishing work.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology for charging stations, specifically to a fire suppression system for electric bicycle 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 fire extinguishers, which pose certain risks to firefighters. Furthermore, fire extinguishers (such as the fire sprinkler system for charging stations described in application number 202322242315.4) cannot quickly suppress a fire in the event of thermal runaway. Therefore, this paper proposes a fire suppression system for electric bicycle 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 a fire suppression system for electric bicycle charging stations. This system can quickly detect electric bicycles with abnormally high temperatures and control the fire extinguishing devices on both sides of the electric bicycle to carry out targeted fire extinguishing work.

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

[0006] The electric bicycle charging station fire suppression system includes several sets of fixed frames located at the top of the charging positions, a temperature acquisition system for collecting the temperature values ​​of electric bicycles, and fire extinguishing devices installed on the fixed frames and located directly above the charging positions. The temperature acquisition system includes a first thermocouple located directly above the charging positions and a second thermocouple located between two adjacent sets of charging positions. The first thermocouple and the second thermocouple jointly collect temperature change data of each electric bicycle charging at each charging position and control the fire extinguishing devices on both sides of the electric bicycle to carry out targeted fire extinguishing work.

[0007] Preferably, the fire extinguishing device includes a mounting assembly installed on a fixed frame and a fire extinguisher detachably connected to the mounting assembly. A separation actuator is provided between the mounting assembly and the fire extinguisher. When a fire occurs, the separation actuator separates the fire extinguisher from the mounting assembly, and the fire extinguisher falls to both sides of the charging electric bicycle.

[0008] Preferably, a steel wire rope is provided between the mounting assembly and the fire extinguisher, and the steel wire rope is suspended to both sides of the charging electric bicycle.

[0009] Preferably, the mounting assembly includes a mounting base mounted on the fire extinguisher and a base connected to a fixing frame. 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.

[0010] 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.

[0011] 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 after another.

[0012] Preferably, the fire extinguisher includes an outer shell, with a nozzle on the side facing the electric bicycle and an impact port facing the mounting components. Inside the outer shell, on the side facing the nozzle, a main aerosol propellant column and a cooling ball are arranged in sequence. The main aerosol propellant column burns to generate high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses, and is cooled by the cooling ball to maintain high pressure inside the outer shell. Under high pressure, the gas is ejected from the nozzle to achieve rapid fire extinguishing.

[0013] Preferably, the separation initiator includes a secondary aerosol propellant column located inside the outer casing and facing the impact port. Both the main aerosol propellant column and the secondary aerosol propellant column are connected to a temperature sensor and an igniter. The temperature sensor is connected to a first thermocouple and a second thermocouple and receives temperature signals from them, igniting the igniter. The igniter sequentially activates the secondary aerosol propellant column and the main aerosol propellant column. The secondary aerosol propellant column undergoes a chemical reaction and ejects reactive gas from the impact port, impacting the base and causing the first connector and the second connector to separate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The system of this utility model uses a first thermocouple located directly above the charging position and a second thermocouple located between two adjacent charging positions. The first thermocouple and the second thermocouple jointly collect temperature change data of each electric bicycle charging at the charging position, which can quickly detect electric bicycles with abnormal temperature rise and control the fire extinguishing devices on both sides of the electric bicycle to carry out targeted fire extinguishing work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fire suppression system for this electric bicycle charging station.

[0017] Figure 2 This is a cross-sectional view of the fire suppression system for this electric bicycle charging station.

[0018] Figure 3 This is a schematic diagram of the fire suppression device in the fire suppression system of this electric bicycle charging station.

[0019] Figure 4 This is a cross-sectional view of the fire extinguishing device in the fire suppression system of this electric bicycle charging station.

[0020] In the attached diagram: 1-fixed frame, 2-first thermocouple, 3-second thermocouple, 4-mounting assembly, 41-mounting base, 42-base, 43-first connector, 44-second connector, 45-winding groove, 5-fire extinguisher, 51-outer shell, 52-nozzle, 53-impact nozzle, 54-main aerosol charge, 55-cooling ball, 56-secondary aerosol charge, 57-temperature detector, 58-ignition agent, 6-steel wire rope. Detailed Implementation

[0021] Example 1: A preferred embodiment of this utility model provides a fire suppression system for electric bicycle charging stations, including several sets of fixed frames 1 located at the top of the charging positions, a temperature acquisition system for collecting the temperature values ​​of electric bicycles, and fire extinguishing devices installed on the fixed frames 1 and located directly above the charging positions. The temperature acquisition system includes a first thermocouple 2 located directly above the charging positions and a second thermocouple 3 located between two adjacent sets of charging positions. The first thermocouple 2 and the second thermocouple 3 jointly collect temperature change data of each electric bicycle charging at a charging position and control the fire extinguishing devices on both sides of the electric bicycle to perform targeted fire extinguishing work.

[0022] Example 2: A preferred embodiment of this utility model provides a fire suppression system for electric bicycle charging stations, which differs from the above embodiments only in that:

[0023] The fire extinguishing device includes an installation assembly 4 mounted on a fixed frame 1 and a fire extinguisher 5 detachably connected to the installation assembly 4. A separation starter is provided between the installation assembly 4 and the fire extinguisher 5. When a fire occurs, the separation starter separates the fire extinguisher 5 from the installation assembly 4, and the fire extinguisher 5 falls to both sides of the charging electric bicycle.

[0024] A steel wire rope 7 is provided between the mounting assembly 4 and the fire extinguisher 5, and is suspended to both sides of the charging electric bicycle by the steel wire rope 7; the mounting assembly 4 includes a mounting base 41 mounted on the fire extinguisher 5 and a base 42 connected to the fixing frame 1. The base 42 has a receiving cavity, and a first connector 43 is provided at the bottom of the receiving cavity. The mounting base 41 has a second connector 44 that matches the first connector 43. The first connector 43 and the second connector 44 are detachably connected; the side wall of the receiving cavity has a winding groove 45, and the steel wire rope 7 is wound around the winding groove 45 one turn at a time.

[0025] The fire extinguisher 5 is an aerosol fire extinguisher. When the aerosol extinguishing agent inside is ignited by the fuse, a chemical reaction occurs. It has a highly efficient activation method, producing 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.

[0026] Specifically, the fire extinguisher 5 includes an outer shell 51. The outer shell 51 has a nozzle 52 facing the electric bicycle and an impact port 53 facing the mounting component 4. Inside the outer shell 51, on the side facing the nozzle 52, there are a main aerosol propellant column 54 and a cooling ball 55 arranged in sequence. The main aerosol propellant column 54 burns to generate high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses. It is cooled by the cooling ball 55 to keep the pressure inside the outer shell continuously high. Under high pressure, it is sprayed out from the nozzle 52 to achieve rapid fire extinguishing. The separation initiator includes a secondary aerosol propellant column 56 located inside the outer casing 51 and facing the impact port 53. Both the main aerosol propellant column 54 and the secondary aerosol propellant column 56 are connected to a temperature sensor 57 and an igniter 58. The temperature sensor 57 is connected to a first thermocouple 2 and a second thermocouple 3 and receives temperature signals from them, igniting the igniter 58. The igniter 58 sequentially activates the secondary aerosol propellant column 56 and the main aerosol propellant column 54. The secondary aerosol propellant column 56 undergoes a chemical reaction and ejects reactive gas from the impact port 53, impacting the base 42 and causing the first connector 43 and the second connector 44 to separate. The main aerosol propellant column 54 undergoes a chemical reaction and ejects reactive gas from the nozzle 52 to extinguish the fire.

[0027] The combustion of the aerosol extinguishing agent in the main aerosol charge 54 generates high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses, and is cooled by the cooling ball 55. The cooling ball 55 occupies a large space, which limits the gas passage space in the cooling zone, thereby maintaining a continuous high pressure inside the outer shell 51 and improving the combustion effect of the aerosol extinguishing agent.

[0028] Example 3: A preferred embodiment of this utility model provides a fire suppression system for electric bicycle charging stations. The only difference between this system and the above embodiment is that the first connector 43 is a plug-in buckle and the second connector 44 is a slot. In the initial state, the plug-in buckle is inserted into the slot. After a fire occurs and the system is subjected to impact, the plug-in buckle disengages from the slot.

[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. A fire suppression system for electric bicycle charging stations, characterized in that, It includes several sets of fixed frames (1) located at the top of the charging position, a temperature acquisition system for collecting the temperature value of electric bicycles, and a fire extinguishing device installed on the fixed frame (1) and located directly above the charging position. The temperature acquisition system includes a first thermocouple (2) located directly above the charging position and a second thermocouple (3) located between two adjacent sets of charging positions. The first thermocouple (2) and the second thermocouple (3) jointly collect the temperature change data of each electric bicycle charging at the charging position and control the fire extinguishing devices on both sides of the electric bicycle to carry out targeted fire extinguishing work.

2. The fire suppression system for electric bicycle charging stations according to claim 1, characterized in that, The fire extinguishing device includes an installation assembly (4) mounted on a fixed frame (1) and a fire extinguisher (5) detachably connected to the installation assembly (4). A separation starter is provided between the installation assembly (4) and the fire extinguisher (5). When a fire occurs, the separation starter separates the fire extinguisher (5) from the installation assembly (4), and the fire extinguisher (5) falls to both sides of the charging electric bicycle.

3. The fire suppression system for electric bicycle charging stations according to claim 2, characterized in that, A steel wire rope (6) is provided between the installation component (4) and the fire extinguisher (5), and the steel wire rope (6) is suspended to both sides of the charging electric bicycle.

4. The fire suppression system for electric bicycle charging stations according to claim 2, characterized in that, The mounting assembly (4) includes a mounting base (41) mounted on the fire extinguisher (5) and a base (42) connected to the fixing frame (1). The base (42) has a receiving cavity, and a first connector (43) is provided at the bottom of the receiving cavity. The mounting base (41) has a second connector (44) that matches the first connector (43). The first connector (43) and the second connector (44) are detachably connected.

5. The fire suppression system for electric bicycle charging stations according to claim 4, characterized in that, The first connector (43) is a plug-in buckle, and the second connector (44) 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.

6. The fire suppression system for electric bicycle charging stations according to claim 4, characterized in that, The side wall of the receiving cavity is provided with a winding groove (45), and the steel wire rope (6) is wound around the winding groove (45) one turn at a time.

7. The fire suppression system for electric bicycle charging stations according to any one of claims 2-6, characterized in that, The fire extinguisher (5) includes an outer shell (51). The outer shell (51) has a nozzle (52) facing the electric bicycle and an impact port (53) facing the mounting assembly (4). Inside the outer shell (51), facing the nozzle (52), there are a main aerosol propellant column (54) and a cooling ball (55). The main aerosol propellant column (54) burns to generate high-pressure gas and aerosol particles. The high-pressure gas carries the aerosol particles and diffuses. The cooling ball (55) cools the outer shell to maintain high pressure. Under high pressure, the gas is ejected from the nozzle (52) to achieve rapid fire extinguishing.

8. The fire suppression system for electric bicycle charging stations according to claim 7, characterized in that, The separation initiator includes a secondary aerosol propellant column (56) located inside the outer shell (51) and facing the impact port (53). Both the main aerosol propellant column (54) and the secondary aerosol propellant column (56) are connected to a temperature sensor (57) and an igniter (58). The temperature sensor (57) is connected to a first thermocouple (2) and a second thermocouple (3) and receives the temperature signals from both, igniting the igniter (58). The igniter (58) sequentially activates the secondary aerosol propellant column (56) and the main aerosol propellant column (54). The secondary aerosol propellant column (56) undergoes a chemical reaction and ejects reactive gas from the impact port (53) to impact the base (42), causing the first connector (43) and the second connector (44) to separate.

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