Flat Conductor Cover Structure for Space-Constrained Locking
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Solution Overview
Problem
Conductive members in power supply circuits face issues where the locking mechanism for covering a flat conductor cannot be provided due to space constraints from peripheral components, leading to potential opening of the cover relative to the protector.
Innovation Solution
A conductive member design featuring a pair of cover members made of insulation resin with an opening prevention unit and a locking mechanism, where the opening prevention unit includes engagement pieces and holding grooves to prevent the cover from lifting, and the locking mechanism ensures integral holding at another end, even in spaces lacking sufficient room for a traditional locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is provided at both ends of the busbar protector, then the cover is securely fixed and cannot open, but there may be insufficient space due to peripheral components at certain locations
Solution Approach 1:
The locking function is segmented into two distinct mechanisms: a locking mechanism at one end and an opening prevention unit at the other end. This segmentation allows each mechanism to be optimized for its specific location, with the opening prevention unit using a simpler structure (engagement pieces and holding grooves) suitable for spaces where a full locking mechanism cannot be installed.
Solution Approach 2:
Instead of using the same locking mechanism at both ends, the patent inverts the approach by using different mechanisms: a traditional locking mechanism at one end and an inverted/simplified opening prevention unit at the other end. The opening prevention unit works by preventing upward movement through engagement pieces that fit into holding grooves, rather than using a conventional locking structure.
2Device complexity
If only a locking mechanism is provided at one end, then the structure is simpler, but the cover may be lifted and opened at the uncovered end
Solution Approach 1:
The protective covering function is segmented into two zones: one end secured by a locking mechanism and the other end secured by an opening prevention unit. This segmentation ensures that both ends of the busbar protector are secured against different failure modes, with each mechanism contributing to overall cover closure reliability.
Solution Approach 2:
Different local qualities are applied at different ends of the busbar protector: a locking mechanism providing strong mechanical coupling at one end, and an opening prevention unit providing resistance to lifting forces at the other end. Each local structure is optimized for the specific forces and requirements at its location.
Data Source
AI summary
A conductive member includes a strip-shaped flat conductor, a pair of cover members made of an insulation resin, the cover members sandwiching and covering an intermediate portion of the flat conductor in a plate thickness direction, an opening prevention unit including a pair of engagement pieces protruding outward of two side edge portions of one of the cover members in a width direction and a pair of holding grooves provided on two side edge portions of the other one of the cover member and holding, in the plate thickness direction, the engagement pieces inserted along a longitudinal direction of the flat conductor, and a locking mechanism provided between the two side edge portions of the one of the cover members and the two side edge portions of the other one of the cover members and coupling the pair of cover members.