Fire prevention and control device and method for radial non-pressure storage electric vehicle

Abstract

The invention relates to a fire prevention and control device for a radial non-pressure storage electric vehicle. The fire prevention and control device comprises a barrel-shaped shell, and a gas generator coaxially arranged in the barrel-shaped shell; the surface of the barrel-shaped shell is provided with fire extinguishing agent nozzles, and fire extinguishing agents are arranged in the barrel-shaped shell; each fire extinguishing agent nozzle is provided with sealing materials which can be pressed to crack; the gas generator comprises an outer shell of which the surface is provided with spouts, and an igniter which is arranged in the outer shell, and the surface, coaxially arranged with the outer shell, of the igniter is provided with igniter spouts; ignition powder is filled in the igniter; gas generating agents are filled in the outer shell; each igniter spout is provided with sealing materials which can be pressed to crack; and trigger lines penetrate out from the igniter upwards, and are exposed outside. When thermal runaway occurs to power batteries, solid gas generating agents in the gas generator are triggered to act, so that high pressure gas is generated, and the fireextinguishing agents are promoted to achieve radial quick spray; the fire of the power batteries can be suppressed effectively, and the thermal expansion of the power batteries is avoided; and the fire prevention and control device has the higher application value in the field of fire prevention and control of the power batteries on the electric vehicle.

Description

technical field [0001] The invention relates to a fire prevention and control device, in particular to a radial non-storage electric vehicle fire prevention and control device and method, belonging to the technical field of electric vehicle fire prevention and control. Background technique [0002] With the rapid development of the new energy vehicle industry, it is also facing severe fire safety issues. The fire safety issue of new energy vehicles has attracted widespread attention from the society, and has also aroused concerns from the industry and consumers. National fire emergency management and new energy vehicles Industrial development has brought severe challenges. [0003] Most electric vehicle fire accidents are related to the on-board power battery system. Traditional power battery system fire prevention and control devices mainly include gas fire extinguishing devices and hot aerosol fire extinguishing devices. Among them, due to the high storage pressure of the...

AI Technical Summary

Problems solved by technology

However, in the existing non-pressure storage fire extinguishing and prevention and control devices, the ignition powder, gas generating agent, and fire extinguishing agent are located in the axial direction, so the injection direction is also in the axial direction, which is not ideal for the fire extinguishing effect of the vehicle battery, and for Difficult to set up in vehicles with limited space

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