Fire extinguishing device of power battery box and automobile

Abstract

The invention discloses a fire extinguishing device of a power battery box. The fire extinguishing device comprises a cover plate, a liquid inlet, a pipeline and a nozzle, wherein the liquid inlet isformed in an automobile body, the cover plate is hinged to the automobile body and can rotate between the position of opening the liquid inlet and the position of closing the liquid inlet, one end ofthe pipeline communicates with the liquid inlet, the other end of the pipeline communicates with the nozzle, the nozzle is arranged on a battery box body, and a liquid outlet of the nozzle extends into the battery box body. The high-efficiency fire extinguishing and cooling on the battery box body can be realized through the device, so that reburning or explosion of the battery box is effectivelyavoided, and the disaster and the other property loss can be reduced as much as possible. The invention further discloses an automobile. The automobile comprises the fire extinguishing device of the power battery box.

Description

technical field [0001] The invention relates to the fire safety of a power battery box, in particular to a fire extinguishing device for a power battery box and an automobile. Background technique [0002] With the development of my country's automobile industry, more and more attention has been paid to its emission regulations, economy, and safety. Green, environmentally friendly and energy-saving battery vehicles and their supporting industries have become a sunrise industry in the automobile industry. Traditional car companies and new car manufacturers have emerged Committed to the research and development and sales of electric vehicles. With the continuous high growth of new energy vehicle production and sales, the rapid expansion of power battery production, and the uneven production and manufacturing levels of enterprises, the recent safety accidents of electric vehicles have become prominent, posing a great threat to personal and property safety. development had a neg...

AI Technical Summary

Problems solved by technology

[0006] In order to ensure personal and property safety, currently, existing electric vehicles are only equipped with traditional hand-held small dry powder fire extinguishers, and some models are only equipped with fire detection and alarm devices such as smoke and temperature sensors, but there is no effective fire extinguishing system and supporting implementation devices

On the one hand, for the fire caused by the thermal runaway or thermal diffusion of the battery box, since most of the battery boxes are arranged under the vehicle floor and are protected by IP67, there are uncertainties in the direction of combustion (such as deflagration, explosion, etc.) and burning persistence. , poor operability of fire extinguishing and many other problems

On the other hand, due to the small space inside the battery box, it is difficult to pre-install a large fire extinguishing agent tank. Short and other issues, can not fully and effectively achieve the purpose of fire extinguishing

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