Nozzle for fire fighting of lithium battery box and lithium battery with fireproof function

Abstract

The invention relates to the technical field of lithium batteries, in particular to a nozzle for fire fighting of a lithium battery box and a lithium battery with a fireproof function. The nozzle comprises a nozzle body, a nozzle core, an elastic member and a nozzle orifice plate, wherein the nozzle core is arranged in a first flow passage of the nozzle body through the elastic member; under the normal condition, the elastic member abuts against the nozzle core when positioned at a first deformation, so that the nozzle core is in sealing contact with the inner wall of a sealing section of thefirst flow passage so as to enable the interior of a battery box body to be in the sealing state, and the sealing requirement of the lithium battery is met; and when the lithium battery fires, the elastic member is compressed by the pressure generated when a fire extinguishing agent is released, the nozzle core exits from the sealing section of the first flow passage, the sealing effect fails, thefire extinguishing agent can be smoothly conveyed to the nozzle orifice plate through the first flow passage, and the fire extinguishing agent is sprayed to the battery box body through spraying holes in the nozzle orifice plate, so that the automatic fire extinguishing effect is achieved, the occurrence of the fire is avoided, and the personal safety of users is guaranteed.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a fire-fighting nozzle for a lithium battery box and a lithium battery with a fireproof function. Background technique [0002] In recent years, with the continuous development of our country's economy, the continuous progress of society. With the rapid development of the country's new energy industry, more and more new energy power battery vehicles based on lithium batteries, energy storage power stations, and charging piles are changing people's lives. [0003] At present, new energy lithium batteries, as a supplement and replacement of traditional energy sources, are the trend of social development. my country's government also gives strong support to the new energy electric vehicle travel and energy storage power station "shaving peaks and filling valleys". The industry is developing rapidly, the scope of use is becoming wider and wider, and the installed capacity...

AI Technical Summary

Problems solved by technology

Since the design of the lithium battery box takes into account the actual application situation, there are high requirements for the sealing, waterproof, weight and other factors of the lithium battery box, but the existing nozzles cannot automatically release the automatic fire extinguishing agent in the event of a fire. Guarantee the tightness of the lithium battery under normal conditions

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