Automatic fire suppression device and method

Automatic battery pack fire suppression system using a rolling fire blanket and agent injection

This technology features an automatic fire suppression mechanism that senses the temperature of a battery pack, deploys a rolled-up fire blanket via a motor when a fire risk is detected to seal the pack, and subsequently injects a fire extinguishing agent through a nozzle.

Due to the structural characteristics of electric vehicles and similar systems, suppressing battery pack fires is difficult, creating a critical need for immediate fire suppression and the prevention of fire spread.

This technology utilizes an integrated automatic fire suppression system that moves a fire blanket stored in a rolling unit on one side of the battery pack to the other side using a drive motor to cover the battery, followed by the injection of a fire extinguishing agent through a nozzle connected to a high-pressure chamber and hose. This can be incorporated into battery thermal management and safety systems, contributing to process simplification and cost reduction.

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Key Features:

• A sensor configured to detect the temperature of the battery pack, and a control unit electrically connected to the sensor and the fire suppression unit.
• A fire suppression unit equipped with a movable fire blanket designed to cover and seal the top of the battery pack.
• A storage unit installed on one side of the battery pack to store the fire blanket in a rolled-up state.
• A drive unit installed on the other side of the battery pack configured to move the fire blanket in the deployment direction.

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