High-Voltage Battery Housing Access for Targeted Fire Suppression
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Solution Overview
Problem
In electric and hybrid vehicles, severe accidents can lead to internal cell short-circuiting in high-voltage stores, potentially causing pressure and temperature increases, off-gassing, and battery fires, posing significant safety risks.
Innovation Solution
A vehicle with a high-voltage store featuring an 'extinguishing route' that allows for the directed supply of a fire-extinguishing agent to the high-voltage store housing, with the route being closed by a covering element in a regulation state but accessible in emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the high-voltage store housing is sealed to protect against environmental damage, then protection against harmful factors is improved, but accessibility for fire-extinguishing agent supply deteriorates
Solution Approach 1:
The housing is segmented into a sealed main body and a separate accessible region (such as a cover or access panel) that can be opened to reveal the extinguishing route. This allows the housing to maintain its protective sealing while providing a designated access point for fire-extinguishing operations.
Solution Approach 2:
An intermediary structure (such as a removable cover, access panel, or valve mechanism) is introduced between the sealed housing and the external environment. This intermediary element can be opened or activated to allow fire-extinguishing agent supply while maintaining the overall sealed protection of the housing.
2Reliability
If the high-voltage store housing provides comprehensive fire protection, then safety is improved, but accessibility for targeted fire-extinguishing agent application deteriorates
Solution Approach 1:
The housing design incorporates a specific local region (such as a wall section, cover, or access panel) that provides controlled access for fire-extinguishing agent supply. This localized access point enables targeted application of extinguishing agents to the fire risk area while the rest of the housing maintains comprehensive fire protection and sealing.
Data Source
AI summary
A vehicle with a high-voltage store which has a high-voltage-store housing in which a plurality of electrical storage cells are arranged, wherein the vehicle is provided with a fire-extinguishing route which is provided and intended to permit fire-extinguishing agent to be supplied in the event of a fire or in the event of risk of a fire to the high-voltage-store housing and/or into the interior of the high-voltage-store housing, wherein, when in the correct state of the high-voltage store, the fire-extinguishing route is closed or covered by a covering element which is arranged on an outer side of the vehicle.