Battery Module Conductive Member Surface Placement
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Solution Overview
Problem
Conventional battery modules are prone to short circuits due to the positioning of positive and negative electro conductive members on the same surface, which can lead to issues when the module is crushed or when metal parts contact these members.
Innovation Solution
The battery module design positions the positive electro conductive member on one surface and the negative electro conductive member on another, with these surfaces crossing each other, ensuring that they extend in different directions and reducing the likelihood of short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the positive electro conductive member and negative electro conductive member are positioned on the same cell terminal surface, then the connection structure is simplified, but the risk of short circuit increases when the cell unit is crushed or contacted by metal parts
Solution Approach 1:
The patent positions the positive electro conductive member and negative electro conductive member on different surfaces of the cell unit. Specifically, the positive electro conductive member is arranged on a first side surface of the cell unit, while the negative electro conductive member is arranged on a second side surface of the cell unit. This spatial separation in different dimensions prevents both members from being contacted simultaneously by external metal objects, thereby reducing short circuit risk while maintaining connection simplicity.
2Reliability
If the positive electro conductive member and negative electro conductive member are positioned on different surfaces, then the short circuit risk is reduced, but the device complexity increases
Solution Approach 1:
The patent utilizes the three-dimensional space of the cell unit by arranging conductive members on different side surfaces. The positive electro conductive member extends along a first side surface, while the negative electro conductive member extends along a second side surface. This dimensional arrangement naturally separates the conductive paths without requiring additional insulating structures or complex routing, thus achieving short circuit prevention with minimal increase in device complexity.
Data Source
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AI summary
A battery module has a cell unit 2 including battery cells 20, a positive external terminal 5 electrically connected to a positive side of the battery cells 20 through a positive electro conductive member 51, and a negative external terminal electrically connected to a negative side of the batterry cells 20. The positive electro conductive member 51 extends a first surface which is one of surfaces of the cell unit 20. The negative electro conductive member 52 extends of a second surface which is one of surfaces of the cell unit 20 other than the first surface.