Cable Core Segmented Fillers Flex Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Twisted pair cables with cross-shaped fillers fail to provide sufficient flex resistance and experience increased crosstalk when used in moving or swinging applications, leading to unstable transmission characteristics.
Innovation Solution
A cable design featuring a linear filler at the center and multiple second fillers arranged around it in a cross-section, with core wires and second fillers spirally twisted to alternate in the circumferential direction, enhancing flex resistance and reducing crosstalk by dispersing bending stress and maintaining wire position stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a cross-shaped filler is used in the cable structure, then the cable maintains structural stability, but the cable exhibits poor flex resistance and is easily broken when repeatedly bent
Solution Approach 1:
The cross-shaped filler is segmented into multiple independent linear fillers arranged in a cross pattern. This segmentation allows each filler to independently absorb bending stresses without forcing the entire cross structure to bend rigidly, thereby improving flex resistance while maintaining structural stability.
Solution Approach 2:
The filler structure is designed to allow dynamic adjustment during bending. The linear fillers can shift positions and rotate relative to each other when the cable bends, enabling the structure to adapt to bending movements rather than resisting them rigidly, which prevents breakage and improves flex resistance.
2Stability of the object's composition
If a cross-shaped filler is used in the cable structure, then the cable maintains structural stability, but crosstalk increases when the filler is broken or deformed
Solution Approach 1:
By dividing the cross-shaped filler into separate linear fillers, the structure can maintain its geometric configuration without requiring the fillers to be rigidly connected. This segmentation prevents the filler from breaking as a unified structure, thereby avoiding crosstalk issues that would result from filler breakage or deformation.
Solution Approach 2:
The linear fillers act as intermediaries between the twisted pair wires, maintaining proper spacing and positioning without rigid constraints. This allows the fillers to accommodate cable bending and movement while continuing to provide electrical isolation between wire pairs, preventing crosstalk even during deformation.
3Stability of the object's composition
If a cross-shaped filler is used in the cable structure, then the cable maintains structural stability, but transmission characteristics decrease due to unstable twisted pair wire positions
Solution Approach 1:
The segmented linear filler structure provides flexible support for the twisted pair wires, allowing each wire to maintain its position relative to the filler center without being constrained by rigid connections between fillers. This ensures stable transmission characteristics even when the cable bends or moves.
Solution Approach 2:
The filler structure allows for parameter changes in the form of linear fillers with different orientations and positions. This flexibility enables the fillers to adapt to cable deformation while maintaining the twisted pair wire positions within acceptable tolerances, thereby preserving transmission characteristics.
Data Source
AI summary
A cable includes a cable core including a linear filler, and a plurality of core wires for signal transmission, a shield layer covering around the cable core, and a sheath covering around the shield layer. The filler includes a first filler provided at a cable center, and a plurality of second fillers provided around the first filler to form a cross-shape with the first filler in a cross-section perpendicular to a cable longitudinal direction. The cable core is configured in such a manner that the plurality of core wires and the plurality of second fillers are spirally twisted around the first filler to be alternately arranged in a circumferential direction.