Photoelectric Composite Cable with Radial Framework Bulges
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Solution Overview
Problem
Existing photoelectric composite cables have a low capacity and large diameter, making them unsuitable for supporting both 4G and 5G wireless communication, and their high cost and size pose challenges in network construction, especially with the coexistence of 4G and 5G technologies.
Innovation Solution
A photoelectric composite cable design featuring a framework with seven radial side bulges to separate cavities for power wires, wire pairs, and an optical unit, coated with a polyester belt and an outer sheath, including an aramid fiber reinforcing ring for increased capacity and reliability, with an aluminum foil shielding layer for anti-interference, and made from environment-friendly materials to reduce diameter and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the photoelectric composite cable structure is designed to meet 5G capacity requirements, then the transmission capacity is improved, but the cable diameter becomes excessively large
Solution Approach 1:
The cable cross-section is divided into seven radial side bulges that separate the cable cavity into seven framework cavities, allowing efficient spatial organization of different functional elements (power wires, wire pairs, optical unit) to maximize capacity while minimizing overall diameter
Solution Approach 2:
The optical unit employs a nested structure where the aramid fiber reinforcing ring piece is placed inside the flame-retardant sheath, and the optical fiber is arranged in the inner cavity of the aramid fiber reinforcing ring piece, achieving compact packaging that reduces cable diameter while maintaining structural integrity
2Quantity of substance
If more components are added to increase cable capacity for 5G, then the transmission performance is improved, but the cable weight increases
Solution Approach 1:
The optical unit combines flame-retardant sheath material with aramid fiber reinforcing ring piece to achieve both protective and structural functions in a single integrated component, reducing the need for additional separate elements and thereby minimizing weight while maintaining high capacity
3Reliability
If shielding layers and reinforcing structures are added to improve anti-interference ability, then the reliability is improved, but the manufacturing complexity increases
Solution Approach 1:
The aluminum foil shielding layer is integrated into the cable structure by coating it on the polyester belt during the wrapping process, combining the shielding function with the existing protective layering structure, thereby improving anti-interference ability without significantly increasing manufacturing complexity
Data Source
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AI summary
The invention provides a photoelectric composite cable for an indoor wireless distribution system, comprising two power wires (1), four groups of wire pairs (2), an optical unit (3), and a framework (4), which are arranged in a cable cavity of the cable. The framework (4) is provided with seven radial side bulges (41) separating the cable cavity into seven framework cavities (6), in which the two power wires (1), the four groups of wire pairs (2) and the optical unit (3) are arranged respectively to form an integral structure. The integral structure on a periphery thereof is coated with a polyester belt (6), and the polyester belt (6) on a periphery thereof is coated with an outer sheath (7). The optical unit (3) comprises a flame-retardant sheath (8) and an aramid fiber reinforcing ring piece (9) respectively with a circular-ring-shaped cross section and sequentially arranged from outside to inside, and an optical fiber (10) arranged in an inner cavity of the aramid fiber reinforcing ring piece (9).