Water-Driven Fire Nozzle Mobility for EV Battery Pack Suppression
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Solution Overview
Problem
Conventional fire extinguishing water discharge devices for electric vehicles are cumbersome to operate, pose safety risks, and are inefficient in delivering water to the battery pack due to fixed discharge direction, especially when vehicles are densely packed, and require separate driving units that incur additional costs and inconveniences.
Innovation Solution
A fire extinguishing water spraying apparatus that operates using hydraulic pressure from fire extinguishing water supply pipes to rotate wheels and adjust discharge direction, incorporating a rotation module and nozzles to directly target the battery pack, eliminating the need for a separate driving device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional fire extinguishing water discharge devices are manually pushed or pulled by an operator, then the device can be moved to the fire site, but operator safety is compromised and operation becomes cumbersome
Solution Approach 1:
The fire extinguishing device moves itself using a water-driven wheel mechanism that utilizes the flow of fire extinguishing water to rotate the wheels, eliminating the need for manual pushing or pulling by operators. This self-propulsion capability resolves the contradiction by making the device easy to operate while ensuring operator safety through remote operation.
Solution Approach 2:
The device employs hydraulic principles by using the kinetic energy of flowing fire extinguishing water to drive the wheels. The water flow itself becomes the propulsion mechanism, converting the water's mechanical energy into wheel rotation, thereby enabling automatic movement without external mechanical input from operators.
2Ease of operation
If separate driving apparatus such as motors are equipped in fire extinguishing devices, then the device can move automatically, but cost and device complexity increase
Solution Approach 1:
Instead of using electrical motors or complex mechanical driving apparatus, the invention utilizes the hydraulic energy of the fire extinguishing water flow itself to propel the device. The water-driven wheel mechanism directly converts water flow kinetic energy into motion, eliminating the need for separate power sources and reducing overall device complexity.
Solution Approach 2:
The fire extinguishing water serves dual purposes: it both extinguishes the fire and provides the propulsion force for moving the device. This multi-functionality eliminates the need for separate driving systems, reducing complexity while maintaining automatic movement capability.
3Device complexity
If fire extinguishing water is discharged in a fixed forward direction, then the discharge mechanism is simple, but water cannot be effectively delivered to the battery pack located at the bottom of electric vehicles
Solution Approach 1:
The fire extinguishing device incorporates rotatable nozzles that can dynamically adjust the discharge direction of water. This dynamic capability allows the nozzles to orient water discharge toward the battery pack located at the bottom of the vehicle, significantly improving fire suppression effectiveness while maintaining relatively simple nozzle structure.
Solution Approach 2:
The discharge direction parameter of the water jet is made variable through rotatable nozzles. By changing the orientation angle of the nozzles, the system can adapt the water discharge direction to target different locations, particularly the bottom-mounted battery pack, without requiring complex multi-directional discharge mechanisms.
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
Enables efficient and safe fire suppression in electric vehicles by directly delivering water to the battery pack, reducing operational inconveniences and costs associated with separate driving units, and allowing for flexible discharge direction adjustment.
Implementation Method 1
the wheels of the first and second driving units rotate by hydraulic pressure caused by the flow of fire extinguishing water supplied through the second and third fire extinguishing water supply pipes
Implementation Method 2
a rotation module that operates by the hydraulic pressure of fire extinguishing water supplied through the first fire extinguishing water supply pipe
Data Source
AI summary
A fire extinguishing water discharge device includes a support part in which a plurality of support pieces are arranged at intervals in the front-rear direction; a fire extinguishing water discharge part hingedly coupled to any one of the support pieces of the support part and having a plurality of nozzles arranged at intervals on its upper surface; a first driving unit connected between one end of any one of the support pieces and one end of the other, and provided with a plurality of wheels in contact with the ground at one side; a second driving unit connected between the other end of any one of the support pieces and the other end of the other, and provided with a plurality of wheels in contact with the ground at one side; and a control part spaced from the support part and configured to control the flow of fire extinguishing water.