Vehicle Battery Ejection Mechanism to Contain Fire Spread
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Solution Overview
Problem
Conventional fire extinguishing systems are ineffective in preventing the spread of fires originating from batteries in environmentally friendly vehicles, such as electric vehicles, due to the unique characteristics of battery fires, which are difficult to extinguish using conventional methods.
Innovation Solution
A fire spreading prevention system that includes a battery state detector, a controller, and a battery removal apparatus, which senses a battery fire and automatically removes the battery from the vehicle, spatially separating it to prevent the fire from spreading, using a battery removal apparatus that mounts and releases the battery from the vehicle body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional fire extinguishing system is used to extinguish a battery fire, then the fire extinguishing agent can be sprayed onto the battery, but the fire cannot be completely extinguished and may spread throughout the vehicle
Solution Approach 1:
The patent extracts the battery (the source of fire) from the vehicle by automatically removing it to the outside. This is achieved through a battery removal apparatus that includes a mounting structure with locking mechanisms, which can be activated to detach and eject the battery from the vehicle when a fire is detected, thereby preventing fire spread to the vehicle interior.
Solution Approach 2:
Instead of trying to extinguish the fire by spraying agents onto the battery (conventional approach), the patent inverts the approach by removing the battery itself from the vehicle. This fundamental reversal of the fire suppression strategy addresses the limitation that conventional extinguishing agents are ineffective against battery fires.
2Reliability
If a fire extinguishing agent is sprayed into the engine compartment or battery space, then the fire may be suppressed, but the system complexity and potential for incomplete extinguishment increase
Solution Approach 1:
The patent removes the battery from the vehicle using an automated removal apparatus, eliminating the need for complex fire extinguishing agent delivery systems. The apparatus includes mounting structures with locking mechanisms and ejection capabilities, simplifying the overall fire safety system by avoiding the complexity of high-pressure nitrogen systems, fire extinguishing agent storage, and delivery mechanisms required in conventional systems.
3Stability of the object's composition
If the battery is securely mounted to the vehicle body, then the battery remains stable during normal operation, but rapid removal becomes difficult when fire occurs
Solution Approach 1:
The patent implements a dynamic mounting system where the battery mounting structure can transition between a locked stable state during normal operation and an unlocked removable state when fire is detected. The mounting structure includes locking mechanisms that can be rapidly actuated by a control unit upon receiving fire detection signals, enabling the battery to be quickly ejected from the vehicle while maintaining stability during normal use.
Solution Approach 2:
The patent introduces a control unit as an intermediary between the fire detection system and the battery removal apparatus. When the detection unit senses battery fire, the control unit activates the removal apparatus, which then executes the battery ejection. This intermediary control mechanism coordinates the transition from stable mounting to rapid removal, ensuring both stability during normal operation and speed during emergency removal.
Data Source
AI summary
A fire spreading prevention system for a vehicle can prevent a fire breaking out in a battery mounted in the vehicle from spreading throughout the vehicle. The fire spreading prevention system includes a battery state detector that detects battery state information for sensing a battery fire in the vehicle; a controller that outputs a control signal for removing a battery upon determining that the battery fire breaks out; and a battery removal apparatus installed in the vehicle to fix the battery to a vehicle body, and configured to release the battery from the vehicle body and simultaneously to remove the battery from the vehicle in response to the control signal from the controller. When a fire is sensed, the fire spreading prevention system removes the battery from the vehicle and separates and discharges the battery to outside of the vehicle, thereby preventing the fire from spreading throughout the vehicle.