Magnetic Buffer Pad Jig for Variable Compression Rigidity Testing
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Solution Overview
Problem
There is a need for a technology to measure the dynamic rigidity of buffer pads in battery modules while varying the compression rate, as the rigidity of buffer pads affects the protection of battery cells from impacts and vibrations.
Innovation Solution
A jig comprising a first and second metal plate with a magnet member positioned between them, where recessed portions on the plates allow for adjustable compression of the buffer pad, enabling evaluation of dynamic rigidity at varying compression rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a buffer pad is compressed to increase protection performance, then the rigidity and impact resistance are improved, but the compression rate becomes difficult to adjust and control
Solution Approach 1:
The invention changes the physical state and parameters of the buffer pad by controlling compression rate. Different compression rates (10%, 20%, 30%, etc.) are applied to evaluate dynamic rigidity at various states, transforming the evaluation from a single-state test to a multi-parameter assessment that captures the buffer pad's performance across its operational range.
Solution Approach 2:
The invention introduces dynamic evaluation by measuring dynamic rigidity at multiple compression rates rather than a fixed state. This dynamic approach allows the buffer pad's protective performance to be assessed under varying compression conditions, reflecting real-world operational variability and enabling optimization of both protection performance and space utilization.
2Measurement precision
If a complex jig structure is used to precisely control compression rate, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The evaluation process is segmented into multiple discrete compression rate levels (10%, 20%, 30%, etc.), with dynamic rigidity measured at each segment. This segmentation allows precise measurement at each stage while using a relatively simple jig structure, avoiding the need for a single complex continuously-adjustable system.
Solution Approach 2:
The jig is designed with universal applicability to evaluate buffer pads at multiple compression rates using the same basic structure. By maintaining constant compression force while varying compression rate through controlled deformation, the same jig can perform multiple evaluation functions across different compression states, reducing overall device complexity.
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 jig allows for easy adjustment of compression rates, minimizing interference and providing accurate evaluation of buffer pad rigidity, essential for dynamic structure analysis of battery modules.
Implementation Method 1
a magnet member (13) which is positioned between the first plate (11) and the second plate (12)
Data Source
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AI summary
The present invention relates to a jig for evaluating a buffer pad, and the jig includes: a first plate which is positioned on one surface of the buffer pad and presses the buffer pad; a second plate which is positioned on an other surface of the buffer pad and presses the buffer pad from the other surface; and a magnet member which is positioned between the first plate and the second plate, in which a recessed portion, which is recessed to allow the magnet member to be disposed, is formed at an edge of at least one of the first plate and the second plate.