Voltage Detection Unit With Inclined Guide Surfaces
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Solution Overview
Problem
The existing voltage detection systems in stacked power storage devices face challenges in securing space for connection components due to the thin plate shape of power storage modules and conductive plates, leading to complex position alignment and reduced workability during the connection of detection terminals.
Innovation Solution
A voltage detection unit with a plate-shaped housing that accommodates a voltage detection terminal and electric wire, featuring a cover with extension pieces and inclined surfaces to guide and secure the electric wire, allowing for improved alignment and connection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection terminal is inserted into the insertion hole of the conductive plate from the side of the stacked body, then the connection between the conductive plate and the detection terminal is achieved, but the position alignment between the insertion hole and the detection terminal becomes complicated, reducing workability
Solution Approach 1:
The detection terminal is pre-installed in the housing before the cover is attached. The housing includes positioning structures such as guide surfaces and positioning protrusions that ensure correct alignment of the detection terminal with the insertion hole. This preliminary positioning eliminates the need for complex alignment during the connection operation, improving workability while maintaining connection reliability.
Solution Approach 2:
The housing acts as an intermediary structure that holds the detection terminal in a fixed position. The cover with its extension piece and guide surfaces serves as another intermediary that facilitates the connection process by guiding the detection terminal into proper alignment with the insertion hole, simplifying the overall connection operation.
2Volume of moving object
If the power storage module and conductive plate are made as thin plate shapes, then the device is miniaturized, but the space for providing other components for connection becomes difficult to secure
Solution Approach 1:
The detection terminal is nested within the housing structure. The housing contains the detection terminal in its interior space, and the cover with extension pieces integrates with the housing to form a compact assembly. This nesting arrangement allows the connection components to be accommodated within the thin plate structure without increasing the overall device volume, while maintaining simple connection geometry through the guide surfaces and positioning structures.
Data Source
AI summary
A voltage detection unit includes a voltage detection terminal, an electric wire, a housing including a terminal accommodating concave and an electric wire accommodating concave, and a cover. The cover includes an extension piece extending in a first direction in which the cover is attached to the housing. The housing includes an accommodating hole to accommodate the extension piece. The electric wire accommodating concave includes an inclined surface and a guide surface. The inclined surface is inclined with respect to the first direction such that a first thereof end is provided closer to the accommodating hole than a second end thereof in a second direction perpendicular to the first direction and being parallel to the housing. The guide surface is continuous with the inclined surface and continuous with an inner wall surface of the accommodating hole.