Photoelectric Composite Cable Jacket for Low-Resistance Pipe Laying
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Solution Overview
Problem
The laying of optical and electrical cables for high-density stub terminals is hindered by limited space and high resistance when passing through pipes, affecting efficiency.
Innovation Solution
A photoelectric composite cable with a convex structure on its outer jacket reduces friction and resistance by integrating optical and electrical units closely, using flexible or rigid ferrules and jackets, and optionally incorporating grooves and suspension wires for improved stability and ease of laying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a photoelectric composite cable is used to connect high-density stub terminals, then laying space utilization improves, but resistance when passing through pipes increases
Solution Approach 1:
The outer jacket is designed with different surface characteristics: smooth sections for most of the length and convex structures at specific locations. The convex structures reduce the friction area locally where it contacts the pipe, while maintaining the protective function of the outer jacket elsewhere. This localized modification reduces resistance during pipe passage without compromising overall cable protection.
2Ease of operation
If optical and electrical cables are laid separately, then installation flexibility improves, but laying efficiency deteriorates due to multiple laying operations
Solution Approach 1:
The patent combines optical cables and electrical cables into a single composite cable structure with a common outer jacket. This merging allows both types of cables to be installed simultaneously through a single laying operation, eliminating the need for separate laying operations while maintaining the functional independence and installation flexibility of both cable types.
Data Source
Figure 1~2
Figure 3(a)~3(b)
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AI summary
An embodiment of this application provides a photoelectric composite cable and a communication system. The photoelectric composite cable includes an optical unit, an electrical unit, and an outer jacket. The optical unit includes an optical fiber and a ferrule, and the ferrule is sleeved on the optical fiber. The electrical unit includes a wire and a wire jacket, and the wire jacket is sleeved on the wire. The outer jacket wraps outside the optical unit and the electrical unit, and the optical unit and the electrical unit are disposed closely adjacent to each other. An extension direction of the optical unit is consistent with an extension direction of the electrical unit, and at least one convex structure is disposed on an outer wall of the outer jacket. Because a convex structure is disposed on an outer wall of an outer jacket of the photoelectric composite cable, a friction area between the outer jacket and a pipe is reduced, resistance when the photoelectric composite cable is laid in the pipe is reduced, and efficiency of laying the photoelectric composite cable is improved.