Rechargeable Battery Insulating Member Mesh for Connection Detection
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Solution Overview
Problem
Existing rechargeable battery connection structures and protective circuit modules face challenges in accurately detecting the connection status of terminals, leading to difficulties in identifying defective bonds and ensuring proper operation.
Innovation Solution
Incorporating a mesh-form insulating member with multiple openings between the terminal and connecting members, which are bonded through welding or soldering, allows for easy detection of connection status by preventing contact and allowing soldering material inside openings, facilitating the identification of fixed or unfixed connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a solid insulating member is used between the terminal and connecting member, then electrical insulation is improved, but detection of connection status becomes difficult
Solution Approach 1:
The insulating member is designed with a mesh structure containing multiple openings, allowing it to maintain electrical insulation while enabling visual detection of connection status. The porous/mesh structure permits soldering material to be visible through the openings, solving the contradiction between insulation and detectability.
2Reliability
If the insulating member is made opaque, then electrical insulation is improved, but visual detection of soldering material becomes impossible
Solution Approach 1:
The mesh structure with openings allows the insulating member to be visually transparent while maintaining insulation properties. The openings enable direct visual inspection of soldering material position and connection status without compromising electrical insulation between terminal and connecting member.
3Ease of manufacture
If a simple solid insulating member is used, then manufacturing is simpler, but connection status detection requires additional complex inspection procedures
Solution Approach 1:
The mesh structure can be manufactured using standard techniques while providing built-in visual inspection capability. The openings in the mesh allow connection status to be detected during assembly without requiring additional complex inspection equipment or procedures, improving both manufacturing ease and inspection efficiency.
Data Source
AI summary
A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly comprising a positive electrode and a negative electrode, a case accommodating the electrode assembly and a terminal electrically connected to the electrode assembly and exposed from the case. The battery further includes a protective circuit module comprising a connecting member electrically connected to the terminal and an insulating member interposed between the terminal and the connecting member, wherein a plurality of openings are formed in the insulating member.