An explosion-proof valve assembly with smoke absorption function and explosion-proof valve

By introducing smoke absorption components and venting and pressure relief components into the explosion-proof valve, a labyrinthine exhaust path is formed, which solves the problem of smoke not being absorbed when the battery pack experiences thermal runaway, ensuring the safety of passengers.

CN224502220UActive Publication Date: 2026-07-14WASI ELECTRONIC TECH DONGGAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WASI ELECTRONIC TECH DONGGAN CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing explosion-proof valves cannot effectively absorb smoke when the battery pack experiences thermal runaway, resulting in smoke emissions that could endanger the safety of passengers.

Method used

Design an explosion-proof valve assembly with smoke absorption function, comprising a smoke absorption component and a ventilating and pressure-relief component. It absorbs smoke through a labyrinthine exhaust path and a smoke absorption material layer, and separates the exhaust path for explosion-proof pressure relief and ventilating functions.

Benefits of technology

While ensuring explosion-proof, waterproof and breathable functions, it effectively absorbs the smoke generated when the battery pack thermally runs away, avoids the impact of smoke discharge on the driver and passengers, and reduces the risk of breathing difficulties and suffocation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of explosion-proof valve assembly and explosion-proof valve with smoke absorption function, its explosion-proof valve assembly includes smoke absorption component and breathable pressure relief component;Smoke absorption component includes two or more than pressure plate, pressure plate is stacked up and down and is provided with smoke absorption material layer between two adjacent pressure plates;Breathable pressure relief component includes cover plate, gland, film paper and umbrella valve;Cover plate has a breathable outlet and a pressure relief outlet;Gland is compressed film paper installation at breathable outlet with interference mode;Umbrella valve is installed at pressure relief outlet;Smoke absorption component and breathable pressure relief component are installed on preset valve main body, and make the exhaust path of preset valve main body pass through smoke absorption component and breathable pressure relief component in turn.The technical scheme provided by the utility model can not only prevent silt, dust, water, particles and other substances from entering the cavity, but also prevent the generated smoke from overflowing when the battery pack is in thermal runaway.
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