Battery Module Fire-Extinguishing Channel for Compact Pack Assembly
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Solution Overview
Problem
Existing battery modules face challenges in being compact, easy to assemble, and effective in automatically extinguishing fires, with previous designs either requiring separate storage of fire extinguishing agents or exposed pipes that are prone to damage and increase module size.
Innovation Solution
A battery module design featuring fire extinguishing slots on the battery cell frames that form a continuous channel, with a fire extinguishing member inside, which bursts to release extinguishing material when triggered by temperature, ensuring comprehensive fire coverage and efficient assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pipes are used for fire extinguishing outside the battery housing, then fire extinguishing function is achieved, but the pipe is prone to compression and damage and requires additional space
Solution Approach 1:
The fire extinguishing channel is nested within the battery cell frame structure itself. The channel is formed by slots arranged on the outer walls of adjacent battery cell frames, integrating the fire extinguishing pathway into the existing structural framework rather than adding separate external pipes.
Solution Approach 2:
The battery cell frame serves multiple functions: it provides structural support for the battery cells and simultaneously forms the fire extinguishing channel through its outer wall slots. This multi-functional design eliminates the need for separate dedicated fire extinguishing pipes.
2Reliability
If pipes are used for fire extinguishing outside the battery housing, then fire extinguishing function is achieved, but the external size of the battery module increases
Solution Approach 1:
The fire extinguishing channel is nested within the battery cell frame structure itself. The channel is formed by slots arranged on the outer walls of adjacent battery cell frames, integrating the fire extinguishing pathway into the existing structural framework rather than adding separate external pipes.
3Reliability
If fire extinguishing agents are stored separately in each storage space, then fire extinguishing coverage is achieved, but the structure becomes cumbersome to operate
Solution Approach 1:
Multiple fire extinguishing slots from adjacent battery cell frames are merged to form a continuous fire extinguishing channel. This allows a single fire extinguishing member to span across multiple frames and release extinguishing agent throughout the entire channel, eliminating the need for separate storage and installation in each frame.
Solution Approach 2:
The fire extinguishing channel is segmented into multiple slots on different battery cell frames, which are then connected to form a continuous pathway. This segmentation allows the channel to be constructed from modular units while maintaining overall continuity for effective fire suppression.
4Reliability
If a continuous fire extinguishing channel is formed, then fire extinguishing efficiency is improved, but the structure becomes more complex
Solution Approach 1:
The battery cell frame serves multiple functions: it provides structural support for the battery cells and simultaneously forms the fire extinguishing channel through its outer wall slots. This multi-functional design eliminates the need for separate dedicated fire extinguishing pipes.
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 design achieves a compact structure, easy assembly, and high fire extinguishing efficiency by utilizing a continuous fire extinguishing channel with a single installation of the extinguishing member, protecting it from damage and ensuring timely fire response across the entire battery cell assembly.
Implementation Method 1
a first fire extinguishing material is provided inside the fire extinguishing member, when a temperature of the fire extinguishing member reaches its melting point, the fire extinguishing member bursts so as to release the first fire extinguishing material inside the fire extinguishing member
Data Source
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AI summary
A battery module includes a battery cell assembly and a fire extinguishing member. The battery cell assembly includes a plurality of battery cell frames and a plurality of battery cells. The plurality of the battery cell frames are arranged sequentially along a length direction of the battery module. At least one battery cell is provided in at least some of the battery cell frames. Each battery cell frame is provided with a fire extinguishing slot, and the fire extinguishing slots on the plurality of the battery cell frames are communicated to each other to form a fire extinguishing channel. The fire extinguishing member is arranged in the fire extinguishing channel. The fire extinguishing channel extends along the length direction of the battery module, and the fire extinguishing member extends along the length direction of the battery module in the fire extinguishing channel.