EV Battery Drill Lance Water Injection for Fire Suppression
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Solution Overview
Problem
Existing methods for extinguishing electric vehicle battery fires are inefficient and require large-scale water tanks or cranes, making them impractical and dangerous for firefighters.
Innovation Solution
A motorized drill lance apparatus that automatically drills a fire extinguishing hole in the bottom of an electric vehicle battery using a motor-powered drill module and injects water to extinguish the fire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large amounts of fire extinguishing water are continuously injected for a long period of time, then the fire can be extinguished, but the response time is delayed and the operation becomes complex
Solution Approach 1:
The apparatus performs preliminary action by automatically drilling a hole into the battery pack before water injection begins. The drill module pre-creates the water injection pathway, so that when water is supplied, it can immediately reach the battery cells without delay. This preliminary hole creation eliminates the time loss associated with manual hole creation or positioning.
Solution Approach 2:
The system performs self-service through automatic drilling. The drill module automatically positions and drills into the battery pack without requiring manual intervention for hole creation. The apparatus serves itself by integrating the drilling function directly into the water injection system, eliminating the need for separate manual operations.
2Reliability
If a crane and water tank are used to submerge the vehicle, then fire extinguishing effectiveness is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The invention extracts the essential fire extinguishing function from the complex crane-and-tank system. Instead of requiring full vehicle submersion, the apparatus extracts only the critical action of delivering water directly to the battery pack through a drilled hole. This simplifies the equipment requirements while maintaining extinguishing effectiveness.
Solution Approach 2:
The drill module acts as an intermediary between the water supply system and the battery pack. Rather than requiring direct vehicle submersion, the intermediary drill creates a controlled pathway for water injection. This mediator enables effective fire suppression without the complexity of crane and large tank operations.
3Reliability
If a crane and large water tank are deployed, then fire suppression capability is improved, but ease of operation and safety for firefighters deteriorate
Solution Approach 1:
The apparatus performs self-service through automatic drilling, eliminating the need for firefighters to manually create holes or position complex equipment. The automated drill module handles the dangerous task of penetrating the battery pack, reducing firefighter exposure to heat and chemical risks while maintaining effective fire suppression capability.
4Reliability
If continuous water injection is used for long periods, then fire extinguishing is achieved, but water consumption increases
Solution Approach 1:
The preliminary automatic drilling creates an efficient water injection pathway that delivers water directly to the battery cells. This pre-created channel enables more effective water utilization, reducing the total quantity of water needed compared to surface spraying methods that require continuous large-volume injection.
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
Effectively extinguishes electric vehicle battery fires by drilling a hole and injecting water directly into the battery, preventing re-ignition and minimizing thermal damage to the drill, applicable even with low-pressure water supplies.
Implementation Method 1
a motor 122 disposed on a side of the housing 121; a first bevel gear 123 connected to the motor 122 and inserted into the housing 121 to rotate by the power of the motor 122
Implementation Method 2
an elastic body 126 disposed below the hole cutter 125 and lifting the hole cutter 125 upward using elastic force
Implementation Method 3
when the hole cutter 125 is rotated by the power of the motor 122 while an upper side of the hole cutter 125 is in close contact with a bottom of the electric vehicle battery, a fire extinguishing hole for injecting the water may be drilled into the bottom of the electric vehicle battery
Data Source
AI summary
Proposed is a motorized d drill lance apparatus for extinguishing vehicle fires, the apparatus including a height-adjustable cart configured to move and be located underneath an electric vehicle battery, and a drill module configured to drill a hole into the electric vehicle battery using the power of a motor while in close contact with the electric vehicle battery, and then inject water into the electric vehicle battery through the drilled hole to extinguish a fire occurring in the electric vehicle battery.