Vehicle, and battery box, battery module, fire extinguishing component and fire extinguishing container thereof

Abstract

The invention relates to the field of battery modules, in particular to a vehicle, and a battery box, a battery module, a fire extinguishing component and a fire extinguishing container thereof. The battery fire extinguishing container is provided with a fire extinguishing agent containing cavity, wherein a battery explosion-proof structure and a containing cavity explosion-proof structure are arranged on the cavity wall of the fire extinguishing agent containing cavity, wherein the battery explosion-proof structure is arranged corresponding to a battery unit explosion-proof structure on a battery unit and is used for being opened for relieving pressure when the battery unit explosion-proof structure is opened; and the containing cavity explosion-proof structure is used for being opened for relieving pressure when the internal pressure of the fire extinguishing agent containing cavity reaches a set value. After the internal pressure of the battery unit exceeds the set value, the battery unit explosion-proof structure is opened for pressure relief, the sprayed high-pressure fluid breaks the explosion-proof structure of the battery, and the fire extinguishing agent in the fire extinguishing agent containing cavity flows out to extinguish the battery unit. When the instantaneous pressure of the battery unit explosion-proof structure is too large, the containing cavity explosion-proof structure is punched, and the battery unit is prevented from being exploded due to the fact that the internal pressure of the battery unit is too large, so that the problem that an existing battery fire extinguishing container is prone to causing too large internal pressure of the battery unit to cause explosion of a cell is solved.

Description

technical field [0001] The invention relates to the field of battery modules, in particular to vehicles and battery boxes thereof, battery modules, fire extinguishing components and fire extinguishing containers. Background technique [0002] With the rapid growth of the new energy vehicle market, the safety problems of new energy vehicles are becoming more and more serious. At present, there have been many accidents such as smoke and fire of new energy vehicles in the market, which seriously threaten the lives of passengers. Since the existing new energy vehicles all use batteries as the power source of the power system, during the use of the vehicle, such as overcharging, overdischarging, extrusion, etc. during the charging process of the vehicle, the battery is prone to smoke, fire or even explode. security incident. In recent years, there have been many cases of fires, explosions, and even casualties of electric vehicles during operation, vehicle collisions, and natural...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a battery fire extinguishing container to solve the problem that the current battery fire extinguishing container easily causes the internal pressure of the battery unit to be too high and cause the cell to explode

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