Drill Lance Water Injection for EV Battery Fire Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electric vehicle battery fires are difficult to extinguish due to high energy density and require large amounts of water, and existing methods like crane-lifting into a water tank are impractical.
Innovation Solution
A drill lance apparatus with a height-adjustable cart and drill module that uses hydraulic pressure to automatically drill a fire extinguishing hole in the battery and spray water internally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large amounts of water are poured for a long time to suppress electric vehicle battery fire, then the fire can be suppressed, but the response time is delayed and the operation becomes complex
Solution Approach 1:
The drill module automatically drills a hole into the battery lower plate before water spraying begins, creating a direct water injection path in advance. This preliminary action eliminates the need for slow manual positioning and setup, enabling immediate fire suppression upon water supply activation.
Solution Approach 2:
The system replaces manual mechanical positioning and large-scale water tank operations with an automated drill module that uses hydraulic pressure to drill holes and inject water directly into the battery. This substitution dramatically reduces operational complexity and response time.
2Reliability
If crane lifting and water tank mounting methods are used to suppress battery fire, then fire suppression can be achieved, but the device complexity and operational difficulty increase significantly
Solution Approach 1:
The fire suppression system is segmented into a portable drill module that can be independently operated. This module separates the drilling and water injection functions from the complex crane lifting and large water tank systems, making the equipment simpler to deploy and operate while maintaining fire suppression effectiveness.
Solution Approach 2:
The drill module is designed to be self-contained with automatic drilling capability using hydraulic pressure. The system performs its own positioning and drilling operations without requiring external crane assistance or complex setup procedures, enabling firefighters to operate it independently and efficiently.
3Quantity of substance
If manual water spraying is used on the battery surface, then fire suppression can be attempted, but the water penetration efficiency is low and large amounts of water are required
Solution Approach 1:
The drill module extracts a portion of water and directs it through a newly created hole directly into the battery's internal structure. This extraction approach allows water to bypass the external battery casing and thermal management system, delivering water precisely where needed to suppress thermal runaway with minimal water consumption.
Solution Approach 2:
The drilled hole acts as an intermediary channel that connects the external water source directly to the battery's internal compartments. This intermediary path enables efficient water delivery to the core battery cells, dramatically improving water penetration efficiency and reducing the total water quantity required for effective fire suppression.
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
Rapid suppression of electric vehicle battery fires by drilling and injecting water into the battery, enhancing fire extinguishing efficiency.
Implementation Method 1
the drill module 120 being configured to drill a hole into the electric vehicle battery by using water injected from outside
Implementation Method 2
an impeller 122 provided in the housing 121 and configured to generate a rotational force by being rotated by water that is injected
Implementation Method 3
an elastic body 124 provided on a lower portion of the hole cutter 123, wherein a state in which the hole cutter 123 is brought into close contact with the electric vehicle battery is maintained by an elastic force of the elastic body 124
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
Proposed is a drill lance apparatus for suppressing an electric vehicle battery fire, the drill lance apparatus being capable of rapidly suppressing the fire by spraying water after automatically drilling a fire extinguishing hole in a lower portion of an electric vehicle battery by using the hydraulic pressure when an electric vehicle battery fire occurs.