Foldable Battery Puncture Lance for Electric Bus Fire Suppression

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for extinguishing electric bus fires are ineffective due to the high capacity and integrated form of batteries, making it difficult to suppress the fire and prevent re-ignition, and traditional methods like submerging the vehicle in water are not feasible for electric buses.

Innovation Solution

A foldable apparatus with a hydraulic system that punctures the battery on the roof of an electric bus and injects fire extinguishing water using a fire water injection lance, securely fixed to the bus via a foldable frame, allowing rapid fire suppression.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the apparatus is made compact for transport, then ease of transport is improved, but the ability to rapidly deploy and puncture the battery is worsened

Engineering Contradiction:

Improveapparatus volumeVSAvoiddeployment speed

Core Design Contradiction:

Volume of moving objectVSSpeed

Solution Approach 1:

The apparatus employs a foldable frame structure that can dynamically transition between a compact folded state for transport and an extended operational state for battery puncture. The frame includes multiple linkages that can be quickly deployed from a compact configuration to a fully extended configuration positioning the puncture needle at the battery, resolving the contradiction between compact storage and rapid deployment capability.

Inventive Principle:

Principle #15Dynamics

2Productivity

If high-pressure water injection is used to penetrate the battery, then fire suppression effectiveness is improved, but the risk of apparatus instability during operation is worsened

Engineering Contradiction:

Improvefire suppression effectivenessVSAvoidapparatus stability

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The apparatus applies local quality by concentrating the high-pressure water injection function specifically at the battery location through a focused needle injection system. The water is injected through a narrow needle directly into the battery cells, allowing high-pressure localized penetration without requiring the entire apparatus structure to withstand or resist high forces, thus maintaining overall apparatus stability while achieving effective fire suppression.

Inventive Principle:

Principle #3Local quality

3Loss of time

If the apparatus is designed for rapid deployment, then response time is improved, but the complexity of the hydraulic and folding mechanisms is worsened

Engineering Contradiction:

Improveresponse timeVSAvoidmechanism complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The apparatus merges multiple functions into integrated components: the foldable frame structure simultaneously provides structural support, positioning capability, and deployment mechanism; the hydraulic system is integrated directly into the frame linkages to drive both the folding and extension motions. This merging reduces the number of separate mechanisms needed, achieving rapid deployment without proportionally increasing overall system complexity.

Inventive Principle:

Principle #5Merging (Combining)

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 apparatus enables swift and stable fire extinguishing by puncturing the battery and injecting high-pressure water, minimizing size for transport and ensuring the apparatus remains fixed during operation.

Implementation Method 1

a folding cylinder 123 connected between the lower frame 121 and the upper frame 122 and configured to control a rotation of the upper frame 122 by using the hydraulic pressure

Methodology Applied