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Fire extinguishing device and fire extinguishing method for electric vehicle and power battery

A technology for power batteries and electric vehicles, applied in fire rescue and other directions, can solve problems such as inability to cool the fire source to extinguish fire, and achieve the effects of reducing the risk of electric shock, high fire extinguishing efficiency, and reducing fire water consumption

Pending Publication Date: 2022-07-26
FAW VOLKSWAGEN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the continuous high pressure inside the power battery during a fire, the pressure is released through the damaged gap, and the released smoke will block the cooling water from entering, so it cannot effectively cool and extinguish the fire inside the power battery.

Method used

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  • Fire extinguishing device and fire extinguishing method for electric vehicle and power battery
  • Fire extinguishing device and fire extinguishing method for electric vehicle and power battery
  • Fire extinguishing device and fire extinguishing method for electric vehicle and power battery

Examples

Experimental program
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Effect test

Embodiment 1

[0038] figure 1 It is a schematic structural diagram of the fire extinguishing device in this embodiment; figure 2 This is a schematic diagram of the connection between the introduction rod and the fire hydrant interface in this embodiment. like figure 1 , figure 2 As shown, this embodiment provides a fire extinguishing device, which includes a puncturing end 1 , an introduction rod 2 and a knocking end 3 that are connected in sequence.

[0039] The top end of the piercing end 1 has a sharp structure 12 for piercing the power battery casing, and the strength of the sharp structure 12 is sufficient to pierce the FRP or aluminum casing of the power battery. The puncture end 1 is provided with a water injection hole 11, and the water injection hole 11 is used for injecting fire fighting water into the power battery to cool the fire source inside the power battery and extinguish the fire. The puncture end 1 is provided with a passage communicating with the water injection ho...

Embodiment 2

[0043] Figure 4 is a schematic diagram of the structure of the fire extinguishing device in this embodiment, such as Figure 4 As shown, the difference between Embodiment 2 and Embodiment 1 is that the puncture end 1 and the introduction rod 2 are integrated, and the hydrant interface 23 on the introduction rod 2 and the water injection hole 11 on the puncture end 1 pass through the puncture end 1 and the introduction rod 2 Internal waterways are connected.

[0044] like Figure 5 As shown, the method for extinguishing fire using the fire extinguishing device of the present invention is:

[0045] First, establish an information base for the penetration position and direction of different electric vehicles and power batteries, and the penetration position and direction are determined based on the internal structure of the power battery.

[0046] When a fire occurs in an electric vehicle or power battery, identify whether the electric vehicle or power battery exists in the i...

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PUM

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Abstract

The invention provides a fire extinguishing device and a fire extinguishing method for an electric vehicle and a power battery. The fire extinguishing device comprises a puncture end, a guide-in rod and a knocking end which are sequentially connected. The top end of the puncture end is provided with a sharp structure used for puncturing a power battery shell, and the puncture end is further provided with a water injection hole. A water path is arranged in the guide-in rod, a fire hydrant connector used for being connected with an external fire hydrant is connected to the guide-in rod, and the fire hydrant connector, the water path and the water injection hole are communicated. The problem that in an existing fire extinguishing scheme, fire fighting water cannot effectively act on a fire source in the power battery is solved, and the cooling and fire extinguishing efficiency is effectively improved. When the fire extinguishing device is used for extinguishing fire, the piercing position and direction of the fire extinguishing device are determined in advance by identifying the structures of different electric vehicles and power batteries, and the problem that people get an electric shock or internal elements of the power batteries are damaged in the fire extinguishing process can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a fire extinguishing device and a fire extinguishing method for an electric vehicle and a power battery. Background technique [0002] At present, the main method for extinguishing electric vehicle and power battery fires is to use a large amount of water for cooling. The fire source inside the power battery is cooled and extinguished, resulting in poor fire extinguishing effect, waste of a large amount of fire fighting water, and a large amount of fire fighting water with fire combustion products is not easy to recover, which is easy to cause pollution to the environment. [0003] In addition, the creator of the present invention has tried to use a method of injecting water into the interior of the power battery for cooling through the damaged gap caused by the fire. However, since a large pressure will continue to be generated inside the power battery during a fire, th...

Claims

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Application Information

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IPC IPC(8): A62C3/07A62C3/16A62C37/00
CPCA62C3/07A62C3/16A62C37/04
Inventor 张塬野赵宏宇陈波李香山沙文杰曾庆瑞刘学明牟林桐
Owner FAW VOLKSWAGEN AUTOMOTIVE CO LTD