Battery Module Terminal Structure for Visible Connection Inspection
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Solution Overview
Problem
Existing battery modules lack effective visual inspection methods to determine the connection state between the conductive metal plate and second electrode, leading to the risk of defective products being released and potential short-circuiting due to electrical connections between the lid and other components.
Innovation Solution
The battery module design includes a conductive metal plate with connecting pieces and locking pieces that are visibly inspectable, ensuring proper connection and electrical insulation, allowing for easy identification of defects and reducing short-circuit risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the conductive metal plate is used to press the battery and provide electrical connection, then power extraction efficiency is improved, but the risk of short-circuiting between the lid and other components increases
Solution Approach 1:
The patent introduces an insulating frame portion as an intermediary element between the conductive metal plate and the lid. This frame portion provides electrical insulation while maintaining mechanical support, allowing the conductive metal plate to efficiently extract power from the battery without creating a short-circuit path to the lid or other components.
2Device complexity
If the connection state between conductive metal plate and second electrode is not visually inspectable, then device complexity is reduced, but the ability to detect defective products deteriorates
Solution Approach 1:
The patent employs visual distinguishability (analogous to color changes in TRIZ) by designing the conductive metal plate and its connecting pieces with visible features that allow inspection of the connection state. The connecting pieces have specific shapes or positions that can be visually confirmed to ensure proper connection between the conductive metal plate and the second electrode, enabling quality control without complex inspection equipment.
3Reliability
If the lid is electrically connected to the second electrode, then electrical connectivity is improved, but the risk of short-circuiting with other components increases
Solution Approach 1:
The insulating frame portion serves as a mediator that allows the lid to be electrically connected to the second electrode while preventing unwanted electrical connections to other components. The frame portion provides a controlled electrical pathway that maintains reliability while isolating potential short-circuit risks.
Solution Approach 2:
The patent applies local quality by providing electrical insulation specifically at critical locations where the lid approaches other conductive components. The insulating frame portion is positioned to provide localized protection against short-circuiting while maintaining electrical connectivity where needed, rather than insulating the entire lid structure.
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
Enables easy visual inspection to confirm non-defective products, enhances assemblability, reduces short-circuiting, and improves power extraction efficiency while maintaining a compact size.
Implementation Method 1
the conductive metal plate pressing the battery to the bottom surface side of the recessed portion by an elastic force
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
To realize easy checking of a connection state. A receiving portion is located on a frame portion or an insulation substrate, and a conductive metal plate is located on an opening side of a recessed portion. The conductive metal plate includes a connecting portion configured to electrically connect to a second electrode from above and a locking portion configured to lock to the receiving portion. A lid is electrically insulated from the conductive metal plate.