EV Battery Fire Suppression Nozzle for Sealed Pack Access
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Solution Overview
Problem
Conventional technologies face challenges in promptly extinguishing fires in electric vehicle batteries due to their sealing performance, which hinders safety during fires.
Innovation Solution
A vehicle fire suppressing apparatus with a housing containing a fire extinguishing medium and a movable nozzle that ejects the medium into the battery compartment, along with a controller to control the nozzle's movement and ejection, and a system for introducing cooling and extinguishing fluids into the battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing performance is improved to protect battery from external environment, then battery safety against water and dust is improved, but fire suppression capability deteriorates because extinguishing agents cannot penetrate the sealed battery
Solution Approach 1:
The battery case is divided into a sealed outer structure and an internal fire suppression system with separate compartments. The sealing layer maintains environmental protection while the internal structure contains fire suppression agents that can be deployed independently when fire is detected
Solution Approach 2:
A communication mechanism is introduced as an intermediary between the sealed battery structure and the external fire suppression system. This allows the sealed battery to receive fire suppression signals and deploy internal extinguishing agents without compromising its sealing performance
2Ease of manufacture
If conventional sealed battery structure is used to maintain sealing performance, then manufacturing simplicity is improved, but fire response time deteriorates because fire extinguishing agents cannot be promptly delivered to the battery interior
Solution Approach 1:
Fire suppression agents are pre-loaded into the battery case during the manufacturing process, and the system is pre-configured with sensors and delivery mechanisms. When fire is detected, the pre-positioned agents can be immediately deployed without requiring external intervention or complex assembly operations
Solution Approach 2:
The fire suppression system is nested within the battery case structure, with extinguishing agents contained in internal compartments that are integrated into the existing battery manufacturing process, allowing simultaneous production of both sealing and fire suppression components
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 suppresses fires in electric vehicle batteries by directly introducing fire extinguishing chemicals and cooling fluids, enhancing safety by promptly extinguishing fires and preventing explosions.
Implementation Method 1
a controller that performs a control to move the housing to a lower side of a vehicle, in which a fire occurs, and that causes the nozzle part to pass through a lower portion of the vehicle based on a height of the lower side of the vehicle
Data Source
AI summary
Disclosed is a vehicle fire suppressing apparatus includes a housing including a movement part at a lower portion thereof, and including a fire extinguishing medium in an interior thereof; a nozzle part provided in the housing to be movable in an upward or downward direction, and configured to eject the fire extinguishing medium to an outside; and a controller configured to perform a control to move the housing to a lower side of a vehicle, in which a fire occurs, and to cause the nozzle part to pass through the lower portion of the vehicle based on a height of the lower side of the vehicle and control the fire extinguishing medium to be ejected.