Voltage Detection Terminal Cover for Easier Battery Module Assembly
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Solution Overview
Problem
In stacked power storage devices, the existing method of connecting a detection terminal to a conductive plate is cumbersome due to the thin plate shape, leading to difficulties in securing space for other connection components and complicating position alignment, thereby reducing workability.
Innovation Solution
A voltage detection unit with a plate-shaped housing and a cover that can be locked at temporary and final positions, allowing the voltage detection terminal to be exposed for connection and then covered for protection, facilitating easier alignment and connection with the conductive plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection terminal is inserted into the insertion hole from the side of the stacked body, then the connection between the conductive plate and detection terminal is achieved, but the position alignment becomes complicated and workability deteriorates
Solution Approach 1:
The detection terminal is pre-installed in the housing before the cover is attached, and the cover is designed with a temporary locking position that allows the terminal to be exposed for connection. This preliminary arrangement of components enables easy alignment and connection operations without requiring complex positioning during assembly.
2Object-affected harmful factors
If the cover covers the entire accommodating concave portion, then the connection portion is protected, but the connection operation becomes difficult
Solution Approach 1:
The cover is designed to be movable between a temporary locking position (where the connection portion is exposed for connection operations) and a final locking position (where the connection portion is covered for protection). This dynamic repositioning capability allows the cover to adapt to different operational requirements, facilitating easy connection while providing protection when needed.
3Volume of moving object
If the power storage module and conductive plate have thin plate shape, then the stacked power storage device is compact, but space for other connection components cannot be secured
Solution Approach 1:
The detection terminal is nested within the housing structure, with the connection portion accommodated in the accommodating concave portion. The cover then covers this nested arrangement, allowing the connection components to be integrated within the existing thin plate structure without increasing overall device volume, thus maintaining compactness while enabling connection functionality.
Data Source
AI summary
A voltage detection unit includes a voltage detection terminal, a housing having an accommodating concave portion to accommodate the voltage detection terminal and a cover to be attached to the housing while covering the accommodating concave portion. The cover is locked to the housing at a temporary locking position at which the cover covers a part of the accommodating concave portion and at a final locking position at which the cover covers an entirety of the accommodating concave portion. The cover includes a main body portion including a locking portion, and a locking piece. The housing includes a locked portion to be locked to the locking portion, a locking hole to accommodate the locking piece and an extending portion formed by a part of an edge of the locking hole. The locking piece is accommodated in the locking hole when the cover is at the temporary locking position.