Seat Fire Suppression and Cooling Layout for Passenger Escape
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Solution Overview
Problem
Vehicles, particularly electric vehicles, are at risk of fires due to flammable fuels, heat sources, and electrical malfunctions, posing a threat to passengers who may be unable to quickly escape, leading to severe burns and smoke-related injuries.
Innovation Solution
A vehicle fire-extinguishing and passenger-cooling device with fire-extinguishing fluid and cooling gas systems, including fire detectors, gas and fluid filling bags, spray nozzles, and generators to protect passengers by spraying fire-extinguishing fluid and discharging cooling gas to minimize burns and facilitate escape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fire-extinguishing system is installed in the vehicle, then passenger protection from fire is improved, but device complexity increases
Solution Approach 1:
The gas filling bag is nested inside the fire-extinguishing fluid filling bag, creating a compact integrated structure. When the gas generator inflates the inner gas bag, it automatically pushes the spray nozzles outward to deploy the fire-extinguishing fluid, eliminating the need for separate deployment mechanisms and reducing overall system complexity.
Solution Approach 2:
The patent combines multiple functions into a single integrated device: fire detection, gas generation for nozzle deployment, fire-extinguishing fluid storage and spray, and passenger cooling. This merging of functions reduces the number of separate components and simplifies the overall system architecture while maintaining comprehensive protection capabilities.
2Object-affected harmful factors
If fire-extinguishing fluid is sprayed around the passenger, then burn protection is improved, but device complexity increases
Solution Approach 1:
The spray nozzles are pre-positioned within the fire-extinguishing fluid filling bag in a retracted state. Upon fire detection, the gas filling bag inflates and automatically pushes the nozzles outward into their operational positions, ensuring rapid deployment without requiring complex active control mechanisms for each nozzle.
Solution Approach 2:
The system uses the pressure from the inflating gas filling bag to automatically deploy the spray nozzles and initiate fluid spraying. This self-service mechanism eliminates the need for separate actuators, valves, or control systems for each nozzle, simplifying the spray system while ensuring reliable operation.
3Temperature
If cooling gas is discharged to the passenger, then heat protection is improved, but device complexity increases
Solution Approach 1:
The gas generator serves dual functions: it inflates the gas filling bag to deploy the fire-extinguishing fluid spray nozzles, and simultaneously generates cooling gas that is discharged through ventilation channels to cool the passenger. This multi-functionality reduces the need for separate cooling system components and simplifies the overall system architecture.
Solution Approach 2:
The cooling gas discharge function is integrated with the fire-extinguishing system by utilizing the same gas generator and connecting it to ventilation channels in the seat. This merging of cooling and fire suppression functions into a single system reduces component count and simplifies the device structure while providing comprehensive thermal protection.
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 device effectively protects passengers from flames and encourages safe evacuation by simultaneously spraying fire-extinguishing fluid around the seat and discharging cooling gas through ventilation channels, reducing the risk of burns and securing time for escape.
Implementation Method 1
a first gas generator mounted in the seat and configured to generate gas to fill the first gas filling bag and the second gas filling bag
Implementation Method 2
a second gas generator mounted in the seat and configured to generate cooling gas to be supplied to a ventilation channel formed in a foam pad of each of the seatback and the seat cushion
Implementation Method 3
a plurality of spray nozzles mounted in the first fire-extinguishing fluid filling bag and the second fire-extinguishing fluid filling bag and configured to spray fire-extinguishing fluid to an outside of the seat
Data Source
AI summary
A vehicle fire-extinguishing and passenger-cooling device includes a fire-extinguishing fluid spray device and a cooling gas discharge device. In the event of a vehicle fire occurring in a seat on which a passenger is seated, the fire-extinguishing fluid spray device sprays fire-extinguishing fluid around the passenger, and the cooling gas discharge device discharges, to the passenger, cooling gas to minimize burns caused by flames. As a result, the vehicle fire-extinguishing and passenger-cooling device protects the passenger from the vehicle fire and encourages the passenger to rapidly escape from a vehicle.