Explosion-proof gas-permeable membrane module and battery pack explosion-proof gas-permeable valve thereof

Abstract

The invention relates to the field of explosion-proof gas-permeable valves for batteries, and discloses an explosion-proof gas-permeable membrane module and a battery pack explosion-proof gas-permeable valve thereof. The explosion-proof gas-permeable membrane module comprises an explosion-proof gas-permeable membrane support (200), a composite membrane arranged on the explosion-proof gas-permeablemembrane support (200), a gas-permeable membrane support (100), and a first gas-permeable membrane (110) arranged on the gas-permeable membrane support (100). The shapes of the explosion-proof gas-permeable membrane support (200) and the gas-permeable membrane support (100) are correspondingly arranged, so that the explosion-proof gas-permeable membrane support (200) is fitted into the gas-permeable membrane support (100). The composite membrane and the first gas-permeable membrane (110) are stacked. According to the invention, the double-layer gas-permeable membrane structure combining the composite membrane and the gas-permeable membrane improves the safety and reliability of an explosion-proof gas-permeable valve.

Description

Technical field [0001] The present invention relates to the field of battery explosion-proof breathable valves, in particular to explosion-proof breathable membrane components and explosion-proof breathable valves for battery packs. Background technique [0002] Power battery pack is the main source of power for new energy vehicles, and safety in use is the most important. When the battery pack is used in a southern climate with temperature difference and high humidity, condensation is very easy to occur. Once condensation occurs in the battery pack, if it drops on the battery pack circuit, it will easily cause the battery pack to short-circuit or even cause fire and explosion. This problem needs to be solved by using explosion-proof breathable valves. However, the shape and size of the existing battery packs are ever-changing, and the requirements for explosion-proof ventilation of the battery pack will also change accordingly. The explosion-proof vent valve needs to be formula...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of poor product versatility and potential safety hazards in the single-layer explosion-proof breathable membrane in the prior art, to provide an explosion-proof breathable membrane assembly and its battery pack explosion-proof breathable valve, which adopts a double-layer membrane combined with a breathable membrane. The multi-layer breathable membrane structure improves the safety and reliability of the explosion-proof breathable valve

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