Battery Case Inflow Plug Opening for Early Fire Suppressant Delivery
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Solution Overview
Problem
High voltage battery fires in vehicles are difficult to suppress, especially when parked in enclosed spaces, as they generate toxic gases and smoke, necessitating early and effective fire suppression to prevent contamination and ensure safety.
Innovation Solution
An apparatus that includes a fire detection device, an inflow plug, a fire extinguishing agent supply pipe, and an inflow plug opening device, which uses high temperature gas pressure to open the inflow plug and allow fire extinguishing agents to flow into the battery case, ensuring rapid and controlled delivery of the agent during a fire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inflow plug remains closed to maintain battery case integrity, then structural integrity is preserved, but fire extinguishing agent cannot enter the battery case for suppression
Solution Approach 1:
The system performs preliminary detection of fire conditions through temperature sensors and prepares the inflow plug opening mechanism in advance. When fire is detected, the plug is automatically opened to allow fire extinguishing agent entry, thus preparing the system beforehand to resolve the contradiction between maintaining integrity and enabling suppression.
Solution Approach 2:
The inflow plug acts as an intermediary element that can transition between closed (maintaining integrity) and open (enabling suppression) states. The control system mediates this transition based on fire detection, allowing the system to maintain structural integrity under normal conditions while enabling fire suppression when needed.
2Productivity
If fire extinguishing agent is supplied early to suppress battery fire, then fire suppression effectiveness is improved, but the system complexity increases due to detection and control mechanisms
Solution Approach 1:
The system employs self-service principles by using automatic fire detection sensors and automated inflow plug opening mechanisms. When fire conditions are detected, the system automatically activates the fire extinguishing agent supply without requiring external intervention, thus achieving early suppression while minimizing the need for complex manual control systems.
Solution Approach 2:
The system incorporates feedback mechanisms through temperature sensors that continuously monitor battery conditions. When fire conditions are detected, this feedback triggers the automated opening of the inflow plug and activation of the fire extinguishing agent supply, enabling rapid response while using a relatively simple control architecture based on sensor feedback.
3Speed
If the vehicle is running and fire occurs, then immediate suppression is needed, but the system may not respond quickly enough due to operational constraints
Solution Approach 1:
The system performs preliminary detection of fire conditions through temperature sensors and prepares the inflow plug opening mechanism in advance. When fire is detected during vehicle operation, the plug is automatically opened to allow fire extinguishing agent entry, thus preparing the system beforehand to resolve the contradiction between maintaining integrity and enabling suppression.
Solution Approach 2:
The system replaces complex mechanical control mechanisms with electronic detection and control systems. Temperature sensors and electronic control units monitor battery conditions and automatically activate the fire suppression system when needed, enabling faster and more reliable response during vehicle operation without requiring complex mechanical intervention systems.
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
Facilitates early and effective suppression of high voltage battery fires by smoothly supplying fire extinguishing agents into the battery pack, reducing the risk of contamination and enhancing safety by utilizing an inert gas like Argon for pressure transfer, ensuring efficient operation.
Implementation Method 1
The fire detection device may heat a pressure transfer gas by a high temperature gas which is discharged when a fire occurs in the battery pack
Implementation Method 2
the inflow plug opening device may open the inflow plug by use of a pressure of the pressure transfer gas supplied from the fire detection device
Data Source
AI summary
An apparatus of supplying a fire extinguishing agent to a high voltage battery pack of a vehicle when a fire occurs in a battery case installing a high voltage battery pack includes a fire detection device that is configured to detect an occurrence of the fire in the battery pack, an inflow plug which is formed at the battery case and is configured to allow the fire extinguishing agent to flow into the battery case when open, a fire extinguishing agent supply pipe connected to the inflow plug and guiding the fire extinguishing agent to the inflow plug, and an inflow plug opening device that is configured to open the inflow plug when the fire is detected in the fire detection device.