Composite Cable Helical Wire Layout for Stress Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing number of wires in composite cables for high-speed communication leads to larger diameters, making them less compatible with smaller connectors, and causes deterioration in transmission properties due to external stress, especially when the cables are configured with a small outer diameter.
Innovation Solution
A composite cable design featuring a power supply wire with a twisted wire pair aggregate, coaxial wires, and signal wires, where the coaxial and signal wires are laid helically over the power supply wire, with the signal wires being smaller in diameter and arranged to avoid contact with the power supply wire, allowing for stress distribution and minimizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of electric wires or cables is increased to meet increasing communication needs, then the communication capability is improved, but the outer diameter of the composite cable increases
Solution Approach 1:
The patent applies nesting by placing smaller signal wires inside the hollow interior of larger power supply wires and coaxial wires. This allows multiple wire types to occupy the same spatial envelope, increasing communication capability while maintaining a compact outer diameter suitable for small connectors.
2Volume of moving object
If the composite cable is configured with a small outer diameter, then the compatibility with small connectors is improved, but the signal wire becomes more susceptible to deformation from external stress
Solution Approach 1:
The patent provides beforehand cushioning by allowing signal wires to move freely within the hollow interior of power supply wires and coaxial wires when external stress is applied. This movement capability acts as a buffer that absorbs deformation forces, preventing stress concentration and protecting transmission properties while maintaining a compact cable diameter.
3Device complexity
If signal wires are laid in direct contact with power supply wires, then the cable structure is simplified, but transmission properties deteriorate due to stress concentration
Solution Approach 1:
The patent applies segmentation by creating distinct spatial zones: signal wires are separated from power supply wires by defining hollow interiors within the power supply and coaxial wires. This segmentation prevents direct contact and stress concentration between different wire types, maintaining transmission properties while managing cable complexity through organized spatial distribution.
Data Source
AI summary
A composite cable is composed of a power supply wire, which includes a twisted wire pair aggregate, which are being formed by laying a plurality of twisted wire pairs together, a plurality of coaxial wires, and a plurality of signal wires, which are each smaller in outer diameter than the power supply wire and the plurality of coaxial wires. The plurality of coaxial wires and the plurality of signal wires are being laid helically over an outer periphery of the power supply wire, and each of the plurality of coaxial wires is being arranged in contact with an outer periphery of the power supply wire, and is being arranged at equally spaced intervals in a circumferential direction of the power supply wire, while each of the plurality of signal wires is being arranged in such a manner as to remain separate from the power supply wire.