CN202720961U

CN202720961U - Bending-resistance high-frequency communication cable

Info

Publication number: CN202720961U
Application number: CN 201220392507
Authority: CN
Inventors: 王存良; 陈虹校; 叶亚军; 张道卿
Original assignee: Jiangsu Hengtong Wire and Cable Technology Co Ltd
Current assignee: Jiangsu Hengtong Wire and Cable Technology Co Ltd
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2013-02-06
Anticipated expiration: 2022-08-09

Abstract

The utility model discloses a bending-resistance high-frequency communication cable. The cable comprises 8 conductor single wires. The two of the 8 conductor single wires are intertwisted with each other so that the 8 conductor single wires form four groups of twisted wire pairs. The conductor single wire is formed by 7 lead filaments which are intertwisted with each other. The lead filament is formed by a steel wire located at the center and a copper layer located on an outer surface. The outer surface of the twisted wire pairs is wrapped with an insulating layer. An outer sheath layer wraps an outer side of the four groups of the twisted wire pairs. A diameter of the lead filament is 0.16mm-0.2mm. The outer sheath layer is a polyethylene layer or a polyvinyl chloride layer. The high-frequency communication cable of the utility model forms a new conductor structure possessing a characteristic which is the same as a pure copper conductor transmission characteristic, is applied in a digital cable and is used to transmit an electrical signal. A product satisfies transmission performance of the digital cable. The good bending-resistance performance is possessed. Product cost is greatly reduced. Considerable economic benefits and social benefits are possessed.

Description

Resistant to bending high frequency communication cable

Technical field

The utility model relates to the transmission conductor field of telecommunication cable, is specifically related to a kind of resistant to bending high frequency communication cable.

Background technology

The existing conductor of conventional digital cable is pure cu conductor, through the oxygen-free copper bar of up-drawing method fabrication process or through the low-oxygen copper pole of continuous casting and rolling fabrication process by 1# electrolysis copper coin, after large, medium and small all kinds of wire drawing machinees draw, anneal, become the copper conductor of digital cable, this copper conductor requires copper content more than 99.95%.

As everyone knows, existence due to the kelvin effect phenomenon, trend towards material outer surface transmission along the line during electric signal transmission, this electric current concentrates on the phenomenon that conductive line surfaces flows in high-frequency circuit, along with the higher kelvin effect phenomenon of frequency is more serious, during as transmission frequency 1MHz, kelvin effect is at 60 μ m thick-layer faces, and during the 500MHz collection, skin effect is at 3.0 μ m thick-layer faces, during 1GHz, kelvin effect is at 2.1 μ m thick-layer faces, and during 10GHz, kelvin effect is at 0.7 μ m thick-layer face.

Summary of the invention

The utility model purpose is to provide a kind of resistant to bending high frequency communication cable, this high frequency communication cable forms has the new conductor structure that is equal to the pure cu conductor transmission feature, be applied to conducting electrical signals in digital cable, product satisfies the transmission performance of digital cable, and has good resistance to bend(ing) energy, product cost reduces greatly, has considerable economic benefit and social benefit.

For achieving the above object, the technical solution adopted in the utility model is: a kind of resistant to bending high frequency communication cable, comprise 8 strands of conductor single lines, thus these 8 strands of conductor single lines stranded four groups of twisted wires pair of forming in twos; Described conductor single line is comprised of the wire stylet that is positioned at the center and the insulating barrier that is positioned at its outer surface, and this wire stylet is comprised of the steel wire that is positioned at the center and the copper layer that is positioned at its outer surface, and an external sheath layer is coated on described four groups of twisted wires to the outside.

It is as follows that technique scheme is further improved technical scheme:

In such scheme, described external sheath layer is polyethylene layer or polyvinyl chloride layer.

Because technique scheme is used, the utility model compared with prior art has following advantages and effect:

The resistant to bending high frequency communication cable of the utility model, it utilizes the copper covered steel composite construction, has the advantageous feature such as good, the good electrical property of mechanical and physical performance, low cost of manufacture, is applied to conducting electrical signals in digital cable, copper plays the effect of conduction weak electric signal, and steel wire is played a supporting role.Product satisfies the transmission performance of digital cable, and has good flexibility and resistance to bend(ing) energy, and product cost reduces greatly, only has considerable economic benefit and social benefit for 55% of fine copper cost.

Description of drawings

Accompanying drawing 1 is the resistant to bending high frequency communication cable structural representation of the utility model;

Accompanying drawing 2 is the utility model wire stylet structural representation.

In above accompanying drawing: 1, conductor single line; 2, twisted wire pair; 3, wire stylet; 31, steel wire; 32, copper layer; 4, insulating barrier; 5, external sheath layer.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described:

Embodiment 1: a kind of resistant to bending high frequency communication cable, comprise 8 strands of conductor single lines 1, and form four groups of twisted wires to 2 thereby these 8 strands of conductor single lines 1 are stranded in twos; Described conductor single line 1 is comprised of the wire stylet 3 that is positioned at the center and the insulating barrier 4 that is positioned at its outer surface, and this wire stylet 3 is comprised of the steel wire 31 that is positioned at the center and the copper layer 32 that is positioned at its outer surface, and an external sheath layer 5 is coated on described four groups of twisted wires to 2 outsides.

Above-mentioned external sheath layer 5 is the polyvinyl chloride layer.

The present embodiment production process is as follows:

(1) select the producing steel-in-copper wires meet the demands:

Product operative norm: SJ/T 11411-2010

Range of product size: Φ 0.10mm～1.0mm

The key technical indexes: select soft attitude copper covered steel material, conductance 〉=30%, copper content 〉=10%.

Main technical requirements: copper covered steel material copper layer adopts the smart copper of 99.97% above purity, and copper layer density is high, good conductivity; Realize metallurgical binding between copper layer and steel wire, adaptation is preferably arranged, guarantee not ftracture in use procedure, good concentricity, tensile strength is higher, percentage elongation is lower; The copper layer along the circumferential direction reaches vertically and is evenly distributed;

(2) adopt glomerocryst wire drawing die or rough diamond wire drawing die in production process, adopt conventional communication cable insulating extrusion apparatus to produce insulated single wire;

(3) insulated single wire forms cable conductor by strand to, stranding operation;

(4) cable core extrudes one deck PE outward or PVC namely completes the utility model.

Embodiment 2: a kind of resistant to bending high frequency communication cable is characterized in that: comprise 8 strands of conductor single lines 1, form four groups of twisted wires to 2 thereby these 8 strands of conductor single lines 1 are stranded in twos; Described conductor single line 1 is comprised of the wire stylet 3 that is positioned at the center and the insulating barrier 4 that is positioned at its outer surface, and this wire stylet 3 is comprised of the steel wire 31 that is positioned at the center and the copper layer 32 that is positioned at its outer surface, and an external sheath layer 5 is coated on described four groups of twisted wires to 2 outsides.

Above-mentioned external sheath layer polyethylene layer.

Adopt the resistant to bending high frequency communication cable of above execution mode, it utilizes the copper covered steel composite construction, have the advantageous feature such as good, the good electrical property of mechanical and physical performance, low cost of manufacture, be applied to conducting electrical signals in digital cable, copper plays the effect of conduction weak electric signal, and steel wire is played a supporting role.Product satisfies the transmission performance of digital cable, and has good flexibility and resistance to bend(ing) energy, and product cost reduces greatly, only has considerable economic benefit and social benefit for 55% of fine copper cost.

Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.

Claims

1. resistant to bending high frequency communication cable is characterized in that: comprise 8 strands of conductor single lines (1), these 8 strands of conductor single lines (1) thus strandedly in twos form four groups of twisted wires to (2); Described conductor single line (1) is comprised of the wire stylet that is positioned at the center (3) and the insulating barrier (4) that is positioned at its outer surface, this wire stylet (3) is comprised of the steel wire that is positioned at the center (31) and the copper layer (32) that is positioned at its outer surface, and an external sheath layer (5) is coated on described four groups of twisted wires to (2) outside.

2. high frequency communication cable according to claim 1, it is characterized in that: described external sheath layer (5) is polyethylene layer or polyvinyl chloride layer.