Coaxial communication cable with high electromagnetic shielding effectiveness and preparation method thereof

A technology of electromagnetic shielding and communication cables, which is applied in the manufacture of coaxial cables, coaxial cables/analog cables, insulated cables, etc. It can solve the problems of short service life and poor anti-electromagnetic interference ability of cables, and achieve high insulation resistance and shielding The performance is uniform and the effect of reducing relative sliding friction

Pending Publication Date: 2022-05-06
BAOSHENG SCI & TECH INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of short service life and poor anti-electromagnetic interference ability of cables under severe conditions, and propose

Method used

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  • Coaxial communication cable with high electromagnetic shielding effectiveness and preparation method thereof
  • Coaxial communication cable with high electromagnetic shielding effectiveness and preparation method thereof
  • Coaxial communication cable with high electromagnetic shielding effectiveness and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a coaxial communication cable with high electromagnetic shielding efficiency includes a tinned copper conductor 1 (inner conductor 1), an insulating layer 2, an outer conductor layer 3 and an outer protective sheath with a solid core structure arranged sequentially from the inside to the outside 4; the insulating layer 2 is wrapped on the inner conductor 1; the outer conductor layer 3 is wrapped on the insulating layer 2; the outer protective sheath 4 is wrapped on the outer conductor layer 3; The outer conductor layer 3 is an electric shielding-magnetic shielding-electrical shielding-magnetic shielding-electrical shielding multilayer composite structure composed of a metal composite tape, a high magnetic permeability metal tape and a braided layer; specifically, the outer conductor layer 3 From the inside to the outside are the metal composite belt 3-1, the first high magnetic permeability metal belt 3-2, the first braided layer 3-3, the seco...

Embodiment 2

[0047] Such as figure 2 As shown, a coaxial communication cable with high electromagnetic shielding efficiency includes an inner conductor 1 (the inner conductor 1 is formed by twisting 7 silver-plated copper wires), an insulating layer 2, an outer conductor layer 3 and The outer protective sheath 4; the insulating layer 2 is wrapped on the inner conductor 1; the outer conductor layer 3 is wrapped on the insulating layer 2; the outer protective sheath 4 is wrapped on the outer conductor layer 3; The outer conductor layer 3 is an electric shielding-magnetic shielding-electrical shielding-magnetic shielding-electrical shielding multilayer composite structure composed of a metal composite tape, a high magnetic permeability metal tape and a braided layer; specifically, the outer conductor layer 3 From the inside to the outside are the metal composite belt 3-1, the first high magnetic permeability metal belt 3-2, the first braided layer 3-3, the second high magnetic permeability m...

Embodiment 3

[0051] Such as image 3 As shown, a coaxial communication cable with high electromagnetic shielding efficiency includes an inner conductor 1 (the inner conductor 1 is a tinned copper conductor with a tubular structure), an insulating layer 2, an outer conductor layer 3 and an outer protection layer arranged sequentially from the inside to the outside. Cover 4; the insulating layer 2 is wrapped on the inner conductor 1; the outer conductor layer 3 is wrapped on the insulating layer 2; the outer protective sheath 4 is wrapped on the outer conductor layer 3; the The outer conductor layer 3 is an electric shielding-magnetic shielding-electrical shielding-magnetic shielding-electrical shielding multilayer composite structure composed of a metal composite tape, a high magnetic permeability metal tape and a braided layer; specifically, the outer conductor layer 3 is composed of an inner To the outside are the metal composite belt 3-1, the first high magnetic permeability metal belt 3...

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Abstract

The invention discloses a coaxial communication cable with high electromagnetic shielding effectiveness and a preparation method of the coaxial communication cable. The coaxial communication cable comprises an inner conductor, an insulating layer, an outer conductor layer and an outer protective sleeve which are sequentially arranged from inside to outside. The insulating layer is wrapped on the inner conductor; the outer conductor layer is wrapped on the insulating layer; the outer protective sleeve is wrapped on the outer conductor layer; the outer conductor layer is of an electric shielding-magnetic shielding-electric shielding-magnetic shielding-electric shielding multi-layer composite structure composed of a metal composite belt, a high-permeability metal belt and a braid layer. The coaxial communication cable with high electromagnetic shielding effectiveness provided by the invention has excellent electromagnetic shielding effectiveness, and is suitable for being used in a complex interference environment; and the cable also has excellent performances of high mechanical strength, low possibility of damage during installation and laying, low signal attenuation, long transmission distance, good insulation performance and the like.

Description

technical field [0001] The invention relates to the technical field of communication cables, in particular to a coaxial communication cable with high electromagnetic shielding efficiency and a preparation method thereof. Background technique [0002] As an effective transmission method for high-frequency signals, coaxial radio frequency cables are limited to the propagation of electromagnetic energy in the medium between the inner and outer conductors, so they have significant advantages such as small attenuation, high shielding performance, wide frequency bandwidth and stable performance. However, with the development of communication equipment technology, the shielding effectiveness indicators such as signal attenuation, shielding attenuation, and noise value of coaxial communication cables connected between equipment are getting higher and higher, especially in the field of nuclear power, where there are high temperatures, radiation, and harsh working conditions. The envi...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B3/44H01B7/17H01B7/18H01B11/18H01B13/016
CPCH01B7/02H01B3/44H01B11/18H01B7/17H01B7/1805H01B11/1808H01B7/18H01B13/016
Inventor 李昆鹏房权生马彦辉董春顾海东张体振潘爱梅朱旭
Owner BAOSHENG SCI & TECH INNOVATION
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