Flexible Flat Circuit Cable Gapped Section Design
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Solution Overview
Problem
Conventional flexible flat cables face issues with insufficient flexibility and durability, particularly in applications involving hinges with different structures or narrow spaces, affecting the smooth operation of electronic devices.
Innovation Solution
A flexible flat circuit cable with a gapped section is designed, comprising two flexible circuit substrates bonded with a predetermined spacing, forming a cluster section with slitted strips and electromagnetic shielding layers for enhanced flexibility and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional flat cable is used to transmit signals through narrow spaces, then the cable can extend through the space, but the flexibility is insufficient and the operation smoothness of hinges is adversely affected
Solution Approach 1:
The flat cable is divided into multiple flexible ribs that are separated by gaps, allowing each rib to move independently. This segmentation enables the cable to bend more easily and smoothly through hinge structures without compromising structural integrity, directly resolving the contradiction between ease of operation and device complexity.
Solution Approach 2:
Different portions of the cable have different structural characteristics - the flexible ribs provide flexibility in bending regions while the bonded sections maintain structural stability. This local differentiation allows the cable to adapt to different operational requirements along its length, improving hinge operation smoothness without excessive complexity.
2Reliability
If a conventional flat cable is used in hinge structures, then signal transmission is achieved, but the flexibility is insufficient and durability is compromised
Solution Approach 1:
The cable structure segments the continuous flat cable into discrete flexible ribs separated by gaps. This segmentation allows the cable to flex repeatedly without stress concentration at single points, significantly improving durability while maintaining a relatively simple overall structure.
Solution Approach 2:
Multiple flexible ribs are bonded together at specific sections to form a unified cable assembly. This merging provides structural stability and durability while the gaps between ribs maintain flexibility, resolving the contradiction between reliability and device complexity.
3Ease of operation
If the flat cable is made more flexible to improve hinge operation, then the operation smoothness improves, but the structural stability may be compromised
Solution Approach 1:
The cable is segmented into flexible ribs with gaps between them, providing flexibility for smooth hinge operation. The gaps allow each rib to move independently while the bonded sections maintain structural stability, resolving the contradiction between flexibility and structural stability.
Solution Approach 2:
The cable structure is designed to be dynamic - flexible at the rib level for smooth operation but stable at the assembly level through bonding. This dynamic structure adapts to operational requirements while maintaining overall stability, resolving the contradiction between flexibility and structural stability.
Data Source
AI summary
A flexible flat circuit cable includes first and second flexible circuit substrates extending in an extension direction. The first flexible circuit substrate has a first surface forming a first conductor layer and an insulation layer, and the second flexible circuit substrate has a first surface forming a second conductor layer and an insulation layer. A bonding material layer is applied at a predetermined section between the first flexible circuit substrate and the second flexible circuit substrate to bond the first and second flexible circuit substrates together in such a way to maintain a predetermined spacing distance between the first and second flexible circuit substrate and forming a gapped segment at sections where no bonding material is applied. The first and second flexible circuit substrates form a cluster section within the gapped segment, which has opposite ends respectively forming first and second connected sections each of which forms a connection plug or is provided with a connector.