Battery Adapter Assembly With Limiting Face for Stress-Controlled Bending
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Solution Overview
Problem
Energy storage devices have a short service life due to stress on the bendable connecting portions during assembly, leading to breakage and potential short circuits from metal chips and welding slag.
Innovation Solution
An adapter assembly with a limiting member and insulating films is introduced, featuring a bendable connecting portion that rotates and bends around a limiting face, absorbing stress and preventing short circuits by shielding metal chips and improving assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bendable connecting portion is folded during assembly, then the adapter can be received between the electrode assembly and the top cover, but the service life of the energy storage device is reduced due to stress and breakage
Solution Approach 1:
The limiting member is positioned beforehand to define a limiting face that the bendable connecting portion rotates around during folding. This pre-positioned structural constraint cushions and distributes the stress that occurs during assembly folding, preventing excessive stress concentration that would otherwise reduce service life and cause breakage.
2Ease of operation
If the bendable connecting portion is folded during assembly, then the adapter can be received between the electrode assembly and the top cover, but metal chips and welding slag may cause short circuits
Solution Approach 1:
The insulating film is introduced as an intermediary protective layer between the bendable connecting portion and the harmful metal chips and welding slag. During the folding assembly process, this insulating film shields the conductive parts from contamination, preventing short circuits while allowing the assembly operation to proceed.
3Reliability
If the bendable connecting portion rotates and bends around the limiting face, then stress is absorbed and service life is extended, but the structure becomes more complex with additional components
Solution Approach 1:
The limiting member serves multiple functions: it defines the rotation axis for the bendable connecting portion, absorbs stress during folding, and positions the insulating film. The insulating film simultaneously provides electrical insulation and protects against metal chips. By making components multi-functional, the patent extends service life without proportionally increasing structural complexity.
4Reliability
If the first insulating film is clamped between the limiting body and the movable rotary cover, then the window is shielded and short circuits are prevented, but the assembly process becomes more complex
Solution Approach 1:
The insulating film is preliminarily positioned and clamped between the limiting body and the movable rotary cover during the assembly process. This preliminary action ensures the film is in place before the bendable connecting portion is folded and before metal chips or welding slag could cause short circuits, preventing problems before they occur rather than requiring additional complex protective mechanisms.
Data Source
AI summary
An adapter assembly, an energy storage device and a power consuming apparatus are provided. The adapter assembly includes an adapter and a limiting member. The adapter includes a first connecting portion, a second connecting portion, and a bendable connecting portion connected between the first connecting portion and the second connecting portion. The limiting member is located between the first connecting portion and the second connecting portion foldable with respect to each other, and is insulated from the adapter. The limiting member has a limiting face configured to abut against the bendable connecting portion, and the bendable connecting portion is configured to rotate and bend around the limiting face.