Electrical Cable Non-Twisted Portion Segmentation Bending
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Solution Overview
Problem
Existing electrical cables with layered conductor structures and parallel wire arrangements face difficulties in bending, particularly in directions orthogonal to the conductor arrangement, due to the rigidity introduced by the insulation members, which limits their flexibility and installation ease.
Innovation Solution
The electrical cable design incorporates a non-twisted portion with spaced linear conductors, where the insulation member fills gaps between the conductors, allowing for easier bending and flexibility by preventing conductor contact and using a flexible insulation member to cover the periphery, while also incorporating a twisted portion for stable terminal connections and a shield for noise shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the insulation member covers the periphery of conductors in a layered or parallel arrangement, then the cable structure is stable and conductors are protected, but the cable becomes difficult to bend and flexibility is reduced
Solution Approach 1:
The cable is divided into multiple independent cable portions, each containing a small number of conductors (one to three conductors per portion). This segmentation allows each portion to bend independently, significantly improving overall cable flexibility while maintaining structural stability through the insulation member that integrates these portions.
Solution Approach 2:
The conductors are arranged in the thickness direction (vertical dimension) rather than side-by-side in the horizontal plane. This vertical stacking allows the cable to bend easily in the horizontal direction while maintaining conductor separation and insulation, effectively using dimensional reorganization to resolve the flexibility-stability contradiction.
2Adaptability or versatility
If multiple wire strands are arranged in parallel contacting each other, then the cable can transmit multiple electrical signals, but the cable becomes difficult to bend in the direction orthogonal to the wire arrangement
Solution Approach 1:
Instead of arranging multiple wire strands in parallel contact in a single plane, the invention segments them into separate cable portions stacked in the thickness direction. Each cable portion contains one to three conductors and can bend independently, maintaining electrical transmission capability while enabling easy bending in the orthogonal direction.
Solution Approach 2:
The conductor arrangement transitions from a two-dimensional parallel layout to a three-dimensional stacked configuration. By placing cable portions containing conductors in the thickness direction, the cable achieves versatility in signal transmission while gaining flexibility for bending in the horizontal plane.
3Reliability
If conductors are arranged in a twisted state, then terminal connections are stable, but the cable loses flexibility and becomes difficult to bend
Solution Approach 1:
The cable is segmented into multiple cable portions, with twisting applied only to individual portions containing one to three conductors rather than the entire cable. This localized twisting maintains terminal connection stability for each portion while the overall segmented structure preserves cable flexibility through the insulation member integrating the portions.
Solution Approach 2:
Different structural characteristics are applied to different parts of the cable: individual cable portions have twisted conductors for stable terminal connections, while the overall cable structure maintains flexibility through the insulation member that covers and integrates these portions. This local differentiation resolves the contradiction between connection stability and cable flexibility.
Data Source
AI summary
An electrical cable including conductors and an insulation member that covers a periphery of the conductors, and a technique of facilitating bending of the electrical cable in a plurality of directions. The electrical cable includes an electrical cable portion having a plurality of linear conductors configured to be connected to a common connection point, and a flexible insulation member configured to cover a periphery of the electrical cable portion. A middle portion between both ends of the electrical cable portion includes a non-twisted portion where at least some among the plurality of linear conductors are provided in a state spaced apart from each other. The insulation member covers a periphery of the non-twisted portion of the electrical cable portion, and fills gaps between the plurality of linear conductors in the non-twisted portion.