Fireproof EV Containment Bag That Vents Gas but Blocks Sparks
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Solution Overview
Problem
Existing securing systems for defective or wrecked electric vehicles are inefficient, cumbersome, and unsafe, as they fail to address the risk of battery fires and hazardous substance release, and are not space-efficient for storage and rapid deployment.
Innovation Solution
A fire-resistant, fully sealable bag made of textile material with nonwoven layers, designed to enclose an electric vehicle, allowing gas and fluid permeability to prevent gas accumulation, and equipped with reactive components and hydrogen fluoride neutralizing agents, along with reinforced seams and attachment points for easy handling and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid housing with lid is used to contain hazardous materials, then fire resistance and liquid tightness are improved, but the device becomes cumbersome to deploy and store
Solution Approach 1:
The patent replaces rigid housing with a flexible textile bag that can be rapidly deployed and stored. The textile material provides fire resistance while maintaining flexibility, allowing the bag to be quickly placed over vehicles and compactly stored when not in use.
Solution Approach 2:
The securing system transitions from a static rigid structure to a dynamic flexible bag that can adapt to different vehicle sizes and shapes. The bag can be rapidly deployed by placing it over the vehicle and sealing it, eliminating the need for complex assembly of rigid components.
2Adaptability or versatility
If a large housing is designed to enclose entire electric vehicles, then containment capability is improved, but storage space efficiency deteriorates
Solution Approach 1:
The flexible textile bag can be compactly stored in a small container when not in use, yet expands to enclose entire electric vehicles when deployed. This provides high adaptability with minimal storage space requirement.
Solution Approach 2:
The bag is stored in a compact container that can be kept in vehicles or depots. When needed, the bag is removed and deployed to enclose the vehicle, effectively nesting the large containment structure within a small storage space.
3Reliability
If a sealed enclosure is used to contain hazardous materials, then containment is improved, but gas accumulation and ignition risk increase
Solution Approach 1:
The textile bag is designed to be permeable to gases and vapors, allowing them to pass through the material and escape. This prevents gas accumulation inside the bag while maintaining containment of the vehicle and solid particles, eliminating ignition risk from accumulated gases.
4Strength
If a rigid housing with lifting lid is used, then structural strength is improved, but ease of handling deteriorates
Solution Approach 1:
The flexible textile bag eliminates the need for lifting heavy lids. The bag can be easily maneuvered and positioned over vehicles by pulling and spreading it out, then sealed at the opening, providing superior handling ease compared to rigid structures.
Solution Approach 2:
The bag can be deployed at ground level without requiring lifting to elevated positions. The opening can be sealed at the same level as the vehicle, eliminating the need to lift the bag or vehicle to access closing mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively contains and transports hazardous electric vehicles by preventing gas ignition and enhancing safety, while being compact for storage and easy to deploy, ensuring rapid response to emergencies.
Implementation Method 1
the bag completely encloses the electric vehicle, forming a barrier against solid particles while remaining wholly or partially permeable to gases or fluids
Implementation Method 2
incorporating reactive components into the textile material that release fire-fighting aerosol and/or fire-fighting liquid into the interior of the bag at temperatures above 150°C
Implementation Method 3
impregnating the inside of the bag with one or more hydrogen fluoride neutralizing agents, such as calcium gluconate
Data Source
Figure 1~2
AI summary
A protection system for a hazardous load is presented which comprises the electric vehicle to be protected having rechargeable batteries for the operating current of the drive unit of the electric vehicle and a completely closable bag made of fireproof textile material having an opening for receiving the electric vehicle, wherein the bag in the closed state completely surrounds the electric vehicle, forms a barrier for solid particles and nevertheless is permeable entirely or in regions to gases or fluids. Fires or explosions arise primarily due to flying sparks igniting an inflammable gas or gas mixture. Owing to the fact that the bag retains solid particles while gases or fluids can escape from the bag, it is avoided that a gas or gas mixture that may be set on fire by glowing solid particles is built up and concentrated in the interior of the closed bag. A method for protecting a hazardous load and a safety container used in the method are likewise presented.