Voltage Monitoring Module Support Case for Moving Cell Terminals
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Solution Overview
Problem
Existing voltage monitoring modules face complexity in assembly due to the folded connection terminals of flexible printed circuit boards, which complicate the process of following the movement of battery cell terminals during contraction and expansion.
Innovation Solution
A voltage monitoring module with a flexible printed circuit board supported by a support case, featuring a first case and a second case that allows the connection terminal to move relative to the first case, and a movement restrictor to maintain the bent state of the extension, enabling easy alignment with cell terminals despite battery expansion and contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the branch is folded back to allow the connection terminal to follow movement of the cell terminal, then the adaptability to battery expansion and contraction is improved, but the assembly complexity increases
Solution Approach 1:
The support case is designed with two cases that can move relative to each other in the longitudinal direction. The second case is movable relative to the first case, allowing the connection terminal to dynamically adjust its position as the battery expands or contracts, while maintaining a simple flat structure that is easy to assemble
Solution Approach 2:
The support case is divided into two separate cases (first case and second case) that can move independently relative to each other. This segmentation allows the connection terminal to follow battery terminal movement while keeping each case structurally simple and easy to manufacture
2Ease of operation
If the second case is allowed to move relative to the first case to enable connection terminal movement, then the ease of operation is improved, but the stability of connection increases difficulty
Solution Approach 1:
The movement restrictor is pre-configured to automatically restrict the second case to a specific movement range. This preliminary constraint ensures that the connection terminal maintains stable electrical contact with the cell terminal throughout the battery's expansion and contraction cycles, preventing excessive movement that could compromise connection reliability
Solution Approach 2:
The movement restrictor controls the movement range parameter of the second case, allowing it to move within a specific range relative to the first case. This parameter control enables the connection terminal to follow battery terminal movement while maintaining stable electrical connection
Data Source
AI summary
A voltage monitoring module includes a flexible printed circuit board and a support case supporting the flexible printed circuit board. The flexible printed circuit board includes a body and a branch branched from the body and having an extension extending in a first direction which is the longitudinal direction of the body. The branch has, at a tip end portion thereof, a connection terminal to be connected to a cell terminal of a battery cell. The support case includes a first case, a second case on which the body is to be mounted and which is provided movably in the first direction relative to the first case, and a movement restrictor that restricts movement of the second case after the second case has moved to a final set position.