Flexible Flat Cable Connection via Planar Relay Bus Bar
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Solution Overview
Problem
The existing technology for connecting flexible flat cables has a limited area for electrical connection, which can lead to a decrease in the reliability of the electrical connection between the cables.
Innovation Solution
A structure that includes a flexible flat trunk cable with a trunk conductor and insulating trunk coating, a flexible flat branch cable with a branch conductor and insulating branch coating, and a conductive relay path for electrically connecting the trunk and branch conductors, with exposed lands and terminal portions for enhanced connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connection member is inserted into the conductive paths of vertically placed flexible flat cables, then the conductive paths are electrically connected, but the connection area is narrow and reliability decreases
Solution Approach 1:
The patent transitions from vertical stacking connection to planar surface mounting connection. The conductive relay path is mounted on the surface of the flexible flat cable rather than inserting through vertically stacked cables, effectively changing the connection dimension from vertical to horizontal/planar, thereby increasing the available connection area and improving reliability
Solution Approach 2:
The patent introduces a conductive relay path as an intermediary component. Instead of directly connecting conductive paths of two cables through insertion, the conductive relay path serves as a mediator that receives electrical connection from one cable and provides connection to another cable, enabling larger area connections through surface mounting
Data Source
AI summary
Power trunk conductors 30 of a trunk cable 12 and power branch conductors 37 of a branch cable 13 are electrically connected to each other by a first trunk-side bus bar 56, fuses, and a first branch-side bus bar 60. Signal trunk conductors 31 of the trunk cable 12 and signal branch conductors 38 of the branch cable 13 are electrically connected to each other by the relay bus bars 64.