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UHF digital communication cable and its preparation method

A digital communication, UHF technology, applied in communication cables, cable/conductor manufacturing, insulated cables, etc., to avoid leakage of electromagnetic signal radiation, reduce contact stress, and avoid wrinkles

Active Publication Date: 2016-11-30
JIANGSU DONGQIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is often fatal to the electrical performance and signal transmission safety of digital signal cables with high operating frequency and broadband

Method used

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  • UHF digital communication cable and its preparation method
  • UHF digital communication cable and its preparation method

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Embodiment Construction

[0027] Such as figure 1 For the UHF digital communication cable shown, the core of the cable is covered with a total shielding layer 6. The total shielding layer 6 is made of 96 tinned copper wires with a diameter of 0.1mm for cross braiding. The braiding coverage Up to 60%, the weaving pitch is 28mm. The outer sheath 7 composed of low-smoke halogen-free cable sheath material is extruded on the overall shielding layer 6. The wall thickness of the outer sheath 7 is controlled at 0.55±0.1mm, and the outer diameter of the cable after the outer sheath is not Greater than 8.20mm. The cable core of the cable is formed by twisting four pairs of twisted wires 3, and each pair of twisted wires 3 is twisted by two insulated single wires, and each pair of twisted wires 3 is wrapped with Sub-shielding layer 4, the sub-shielding layer 4 is formed by wrapping an aluminum foil tape formed by fusing a polyester film with an aluminum layer, and the sub-shielding layer 4 can also be made of a...

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Abstract

An ultra-high frequency digital communication cable, comprising a cable core, a total shielding layer (6), an outer protection layer (7) and branch shielding layers (4) on twisted pair wire groups (3), wherein overlapping sides of the branch shielding layers (4) are clamped between two adjacent insulated single wires to form a branch shielding overlapping wire (8); the branch shielding overlapping wires (8) corresponding to two adjacent pairs of twisted pair wire groups (3) are arranged in a staggered manner; and the length for overlapping, outward-stretching sides of the branch shielding layers (4) to extend outwards from the branch shielding overlapping wires (8) is L1, L1 being 10%-15% of the width of a clad foil band of the branch shielding layers (4). The preparation method comprises the following steps: (1), drawing a copper conductor (1); (2), extruding an insulation layer; (3), twisting twisted pair wire groups (3); (4), cladding branch shielding layers (4); (5), twisting same into a cable; (6), weaving a total shielding layer (6); and (7), extruding an outer protection layer (7) into a finished cable. The communication cable not only has a good shielding effect and can effectively prevent intrusion and leakage of an electromagnetic wave, but also has a firm cable structure and stable transmission performance, and is particularly applicable to transmitting an ultra-high frequency band digital signal.

Description

technical field [0001] The invention relates to a digital communication cable, in particular to a communication cable used for transmitting ultra-high frequency digital signals such as Category 7 and Category 8 on the Internet. Background technique [0002] With the continuous development of digital communication networks in the direction of large capacity, high frequency, and high speed, the technology of multi-service transmission platforms has gradually matured and has been promoted in metropolitan area networks; the construction of my country's "three-in-one" communication network In full swing. With the rapid development of structured cabling systems, Gigabit Ethernet can no longer meet the user's broadband requirements, and 10 Gigabit Ethernet will become the mainstream technology. Corresponding digital communication cables need to develop from Category 6 and Category 7 to Category 8 and higher transmission frequency communication cable products. [0003] The increase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B11/00H01B11/06H01B7/02H01B13/00
CPCH01B7/02H01B11/00H01B11/06H01B13/00
Inventor 王子纯吴荣美唐秀芹
Owner JIANGSU DONGQIANG
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