Screen-Type EV Fire Suppression System
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Solution Overview
Problem
Conventional fire suppression systems for electric vehicles are ineffective due to rapid flashover and inability of fire extinguishing agents to reach batteries, and existing solutions have complex installation structures and high production costs.
Innovation Solution
A screen-type fire suppression system that unfolds a screen around the electric vehicle to prevent fire spread and increases water concentration for effective suppression, using a frame, screen, cooler, and embedded tube to direct and concentrate water spray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional water tank formation apparatus is used to immerse the battery in water, then the battery can be cooled, but the installation structure becomes complex and production costs increase
Solution Approach 1:
The patent extracts the water tank formation function from a complex conventional apparatus and implements it through a simple screen structure that unfolds to surround the vehicle. The screen creates a confined space for water without requiring complex tank formation mechanisms, thereby reducing installation structure complexity while maintaining battery cooling effectiveness.
Solution Approach 2:
The patent uses a screen structure that can unfold and surround the electric vehicle to create a confined water space. This flexible screen approach replaces rigid complex tank formation apparatus, reducing installation complexity while still providing effective battery immersion cooling.
2Reliability
If a large quantity of water is used to fill the entire tube in conventional apparatus, then the battery can be fully immersed, but production costs and water consumption increase
Solution Approach 1:
The patent segments the water space creation function by using a screen structure that unfolds to surround only the necessary area for battery immersion. This segmented approach allows water to be confined to the specific region needed for cooling rather than filling the entire vehicle space, reducing water consumption while maintaining complete battery immersion.
3Reliability
If the conventional water tank is filled to immerse the battery, then cooling can be achieved, but the time taken makes the apparatus ineffective for rapid fire suppression
Solution Approach 1:
The patent implements preliminary action by pre-installing the screen structure and water supply system in the parking garage before a fire occurs. The screen is positioned and ready to unfold immediately upon fire detection, eliminating the time-consuming tank filling process required in conventional apparatus. This allows rapid deployment of water cooling to the battery upon fire incident.
4Reliability
If conventional fire extinguishing systems are used, then fire can be suppressed in general, but they cannot reach batteries mounted on lower portions of vehicle bodies
Solution Approach 1:
The patent applies dimensionality change by unfolding the screen structure vertically and horizontally to surround the entire electric vehicle, including the lower battery portion. This three-dimensional screen enclosure creates a confined space that allows water to be delivered to the battery level, overcoming the accessibility limitation of conventional fire extinguishing systems that operate primarily at upper levels.
5Reliability
If a screen is unfolded to surround the electric vehicle, then fire spread is prevented and water concentration is increased, but device complexity increases
Solution Approach 1:
The patent uses a dynamic screen structure that can unfold from a compact state to a full surrounding configuration upon fire detection. This dynamic deployment allows the screen to adapt its shape and size according to the fire situation, creating an effective confined space for water concentration while using a relatively simple unfolding mechanism compared to rigid complex structures.
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 achieves effective fire suppression by directly spraying water onto the electric vehicle, concentrating water through a double partition wall effect, and reducing installation costs and space requirements.
Implementation Method 1
creates a configuration similar to spraying water into a partition wall formed by the screen, resulting in the concentrated spraying of water onto the electric vehicle and the blocking of oxygen by the partition wall
Implementation Method 2
water is sprayed through the cooler to suppress the fire in the electric vehicle
Data Source
AI summary
Embodiments relate to a screen-type fire suppression system for an electric vehicle, and more particularly, to a screen-type fire suppression system for an electric vehicle which, in the event of a fire in a parked electric vehicle, unfolds a screen on the sides of the electric vehicle to prevent the spread of the fire and simultaneously increase the concentration of water sprayed onto the electric vehicle, thereby maximizing fire suppression efficiency.