Battery Module Voltage Detection with Insulated Lead Separation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery modules face issues with electrical insulation between lead portions, which can lead to short circuits due to deformation under impact, especially when battery cells are bonded via lead portions.
Innovation Solution
A voltage detection device is introduced, comprising voltage detection portions connected to lead portions of battery cells, held by a holding body with an insulator between different lead portions, ensuring electrical insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery cells are bonded via lead portions, then electrical connection between cells is achieved, but electrical insulation between different lead portions cannot be secured, leading to potential short circuits under impact
Solution Approach 1:
An insulator is introduced as an intermediary component between different lead portions to prevent electrical short circuits. The insulator is positioned to contact adjacent lead portions and electrically insulate them from each other, directly resolving the insulation problem without complicating the overall battery module structure
Solution Approach 2:
The holding body is divided into multiple segments, with each segment holding a voltage detection portion and incorporating insulators to electrically insulate adjacent lead portions. This segmentation approach allows for modular assembly and effective electrical insulation while maintaining structural organization
2Reliability
If lead portions are used to bond battery cells, then electrical connectivity is established, but the lead portions may deform under large impact, causing adjacent lead portions to contact and create short circuits
Solution Approach 1:
The insulator is positioned beforehand between adjacent lead portions to cushion and prevent direct contact between them. When impact occurs and lead portions deform, the insulator acts as a protective barrier that prevents short circuits, providing beforehand cushioning against the harmful effect of deformation
Solution Approach 2:
The insulator serves as a protective intermediary between lead portions, preventing direct contact even when lead portions deform under impact. This intermediary component ensures that deformation does not lead to short circuits, enhancing reliability without requiring the lead portions themselves to have higher deformation resistance
Data Source
AI summary
A first voltage detection device includes a plurality of first voltage detection portions connected to a plurality of lead portions of a plurality of battery cells, a first holding body holding the plurality of first voltage detection portions, and an insulator provided at the first holding body, at least a portion of the insulator being located between the different lead portions.