CN104795162A - Weather-proof cable for power and data transmission - Google Patents

Abstract

The invention discloses a weather-proof cable for power and data transmission, comprising two power copper conductors, two data copper conductors and a filler cord. Each power copper conductor is covered with an insulating layer; the insulating layers are disposed in parallel and placed in an B form; an inner sheath layer externally covers the surfaces of the insulating layers; a partition is located between the inner sheath layer and a single-side aluminum foil layer; two ends of the partition are provided with a first side tail part and a second side tail part; the partition is in a spiral structure in the lengthwise extension direction; a polyester tape layer covers the surfaces of the single-side aluminum foil layer, the inner sheath layer and the filler cord; a shielding insulating layer comprises, by weight, 100 parts of PVC (polyvinyl chloride) resin, 40 to 60 parts of ethylene-vinyl acetate copolymer, 10 to 12 parts of diisodecyl phthalate, and 15 to 20 parts of polythiophene.

Description

There is the weatherproof cable of electric power and transfer of data

Technical field

The present invention relates to integrated data cable, be specifically related to a kind of weatherproof cable with electric power and transfer of data.

Background technology

In our existing comprehensive wiring system, general use 4 pairs of ordinary numbers cables are surfed the Net, transfer of data etc., use local cable enter wiring can carry out phone, voice etc. transmission, use generic coaxial cable to carry out Web TV, the watching of HDTV (High-Definition Television), above cable, when wiring, needs to influence each other in same pipeline concentric wiring, mutually disturb.

Due to the said structure of cable and the limitation of wiring, therefore along with the impact when low frequency of electromagnetic radiation and capacitive coupling is more and more outstanding, have a strong impact on the electric property of each cable, after causing each cable comprehensive wiring to family, the definition etc. of the networking speed of family, phone call quality, high definition picture all can be subject to impact in various degree, and due to each cable be all separate unit, throughout the year month after month send out temperature, hot after, easily cause each cable sheath inter-adhesive, finally cause broken skin, even leak electricity, burn, final initiation fire.Solve to the electromagnetic reflection of low frequency shield effectiveness and absorption in comprehensive wiring system, and cross-talk and attenuation problem, become the direction that those skilled in the art make great efforts.

Summary of the invention

The object of this invention is to provide a kind of weatherproof cable with electric power and transfer of data, this integrated data cable had both improve the electromagnetic reflection of low frequency shield effectiveness and absorption, enhance the electromagnetic wave shielding performance of data cable, which in turn improve fire resistance.

For achieving the above object, the technical solution used in the present invention is: a kind of weatherproof cable with electric power and transfer of data, comprising: two electric power copper conductors, two data copper conductors and gasket for packings;

Described two electric power copper conductors are all coated with insulating barrier separately, these two parallel placements of insulating barrier and in " ∞ " font place, be overlying on this two surface of insulating layer outside an inner restrictive coating;

Described two data copper conductors are all coated with shield dielectric layer separately, coated two these shield dielectric layer outer surfaces of an one side aluminium foil layer;

One dividing plate is between described inner restrictive coating, one side aluminium foil layer, these dividing plate two ends have the first empennage portion, side, the second empennage portion, side respectively, and the first empennage portion, side, the second side empennage portion are not positioned at left side, the right side of dividing plate, described dividing plate is in its length bearing of trend helically structure, and dividing plate screw pitch is 75 ~ 90mm;

The coated described one side aluminium foil layer of polyester belt, inner restrictive coating and gasket for packing surface;

Flame-retardant layer is coated on described polyester belt outer surface;

One external sheath layer is coated on described flame-retardant layer outer surface;

Described shield dielectric layer is made up of the component of following weight portion:

Polyvinyl chloride resin 100 parts,

Ethylene-vinyl acetate copolymer 40 ~ 60 parts,

Phthalic acid isodecyl ester 10 ~ 12 parts,

Polythiophene 15 ~ 20 parts,

Siloxanes 5 ~ 10 parts,

Fume colloidal silica 20 ~ 25 parts,

Cerium sesquioxide 0.5 ~ 1 part,

Antimonous oxide 5 ~ 10 parts,

Asbestos wool 2 ~ 3 parts,

Antioxidant 1010 0.2 ~ 1 part,

Tissuemat E 1 ~ 2 part,

Titanium dioxide 1.8 ~ 2 parts,

4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.5 part,

Cumyl peroxide 0.5 ~ 1 part,

Triallyl cyanurate 2 ~ 3 parts,

Dilauryl thiodipropionate 3 ~ 4 parts.

In technique scheme, further improved plan is as follows:

1., in such scheme, be provided with between described flame-retardant layer and double-sided aluminum foil layer and weave by several aluminum-magnesium alloy wires the metal screen layer formed.

2. in such scheme, the coated described polyester belt outer surface of a two-sided aluminium foil layer.

Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:

1. the present invention has the weatherproof cable of electric power and transfer of data, it adopts special formulation polyvinyl chloride resin 100 parts, ethylene-vinyl acetate copolymer 40 ~ 60 parts, phthalic acid isodecyl ester 10 ~ 12 parts, siloxanes 5 ~ 10 parts, fume colloidal silica 20 ~ 25 parts, cerium sesquioxide 0.5 ~ 1 part, antimonous oxide 5 ~ 10 parts, antioxidant 1010 0.2 ~ 1 part, Tissuemat E 1 ~ 2 part, titanium dioxide 1.8 ~ 2 parts, 4, 4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.5 part and cumyl peroxide 0.5 ~ 1 part, both improve the electromagnetic reflection of low frequency shield effectiveness and absorption, enhance the electromagnetic wave shielding performance of data cable, which in turn improve fire resistance, secondly, it is positioned at described insulation foaming layer in conjunction with dividing plate, between one side aluminium foil layer, these dividing plate two ends have the first empennage portion, side respectively, second empennage portion, side, and the first empennage portion, side, second side empennage portion is not positioned at the left side of dividing plate, right side, can ensure very well line between physical isolation, and empennage portion, side effectively can resist the impact of mechanical external force, dividing plate not extends along cable parallel direction, but curl, no matter in a pre-installation this structure can ensure, the line be all consistent in installation process or after installing is to separation, thus guarantee better RL and NEXT performance, more surplus, higher cable balancing and reliability, longer life of product.

2. the present invention has the weatherproof cable of electric power and transfer of data, it adds polythiophene 15 ~ 20 parts, asbestos wool 2 ~ 3 parts further in above-mentioned formula, improve the cross-link intensity of base-material, hot strength is increased, the strength physical mechanical performance of there is better stretching, tearing, during burning, the amount of being fuming is low, prevents the second-time burning of material, further improves fire resistance; Secondly, add triallyl cyanurate 2 ~ 3 parts, dilauryl thiodipropionate 3 ~ 4 parts, improve product antioxygenic property, extend product useful life.

Accompanying drawing explanation

Accompanying drawing 1 has the weatherproof cable structural representation of electric power and transfer of data for the present invention.

In above accompanying drawing: 1, electric power copper conductor; 2, flame-retardant layer; 3, data copper conductor; 4, gasket for packing; 5, insulating barrier; 6, inner restrictive coating; 7, shield dielectric layer; 8, one side aluminium foil layer; 9, external sheath layer; 10, metal screen layer; 11, polyester belt; 12, double-sided aluminum foil layer; 13, dividing plate; 141, the first empennage portion, side; 142, the second empennage portion, side.

Embodiment

Embodiment. a kind of weatherproof cable with electric power and transfer of data, comprising: two electric power copper conductors, 1, two data copper conductors 3 and gasket for packing 4;

Described two electric power copper conductors 1 are all coated with insulating barrier 5 separately, this two parallel placements of insulating barrier 5 and placing in " ∞ " font, are overlying on this two insulating barriers 5 surface outside an inner restrictive coating 6;

Described two data copper conductors 3 are all coated with shield dielectric layer 7 separately, coated two these shield dielectric layer 7 outer surfaces of an one side aluminium foil layer 8;

One dividing plate 13 is between described inner restrictive coating 6, one side aluminium foil layer 8, these dividing plate 13 two ends have the first empennage portion, side of empennage portion, side 141, second 142 respectively, and the first empennage portion, side of empennage portion, side 141, second 142 lays respectively at left side, the right side of dividing plate 13, described dividing plate 13 is in its length bearing of trend helically structure, and dividing plate 13 screw pitch is 75 ~ 90mm;

The coated described one side aluminium foil layer 8 of polyester belt 11, inner restrictive coating 6 and gasket for packing 4 surface;

Coated described polyester belt 11 outer surface of double-sided aluminum foil layer 12;

Flame-retardant layer 13 is coated on described double-sided aluminum foil layer 12 outer surface;

One external sheath layer 14 is coated on described flame-retardant layer 13 outer surface;

Described shield dielectric layer 7 is made up of the component of following weight portion:

Table 1

Be provided with between above-mentioned flame-retardant layer 2 and double-sided aluminum foil layer 12 and weave by several aluminum-magnesium alloy wires the metal screen layer 10 formed.

Embodiment 1 ~ 4 to have in the weatherproof cable of electric power and transfer of data shield dielectric layer 7 performance in table 2:

Table 2

Adopt above-mentioned when having the weatherproof cable of electric power and transfer of data, it had both improve the electromagnetic reflection of low frequency shield effectiveness and absorption, enhanced the electromagnetic wave shielding performance of data cable, which in turn improved fire resistance; Secondly, the line that its structure can ensure in a pre-installation, be all consistent in installation process or after installing to separation, thus guarantees better RL and NEXT performance, more surplus, higher cable balancing and reliability, longer life of product; Again, improve the cross-link intensity of base-material, hot strength is increased, the strength physical mechanical performance of have better stretching, tearing, during burning, the amount of being fuming is low, prevents the second-time burning of material, further improves fire resistance; Again, add and improve product antioxygenic property, extend product useful life.

Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims (3)

1. there is a weatherproof cable for electric power and transfer of data, it is characterized in that: comprising: two electric power copper conductors (1), two data copper conductors (3) and gasket for packings (4);

Described two electric power copper conductors (1) are all coated with insulating barrier (5) separately, this parallel placement of two insulating barriers (5) and placing in " ∞ " font, are overlying on this two insulating barriers (5) surface outside an inner restrictive coating (6);

Described two data copper conductors (3) are all coated with shield dielectric layer (7) separately, coated two this shield dielectric layer (7) outer surfaces of an one side aluminium foil layer (8);

One dividing plate (13) is positioned between described inner restrictive coating (6), one side aluminium foil layer (8), this dividing plate (13) two ends have the first empennage portion, side (141), the second empennage portion, side (142) respectively, and the first empennage portion, side (141), the second empennage portion, side (142) lay respectively at left side, the right side of dividing plate (13), described dividing plate (13) is in its length bearing of trend helically structure, and dividing plate (13) screw pitch is 75 ~ 90mm;

The coated described one side aluminium foil layer (8) of polyester belt (11), inner restrictive coating (6) and gasket for packing (4) surface;

Flame-retardant layer (2) is coated on described polyester belt (11) outer surface;

One external sheath layer (9) is coated on described flame-retardant layer (2) outer surface;

Described shield dielectric layer (7) is made up of the component of following weight portion:

Polyvinyl chloride resin 100 parts,

Ethylene-vinyl acetate copolymer 40 ~ 60 parts,

Phthalic acid isodecyl ester 10 ~ 12 parts,

Polythiophene 15 ~ 20 parts,

Siloxanes 5 ~ 10 parts,

Fume colloidal silica 20 ~ 25 parts,

Cerium sesquioxide 0.5 ~ 1 part,

Antimonous oxide 5 ~ 10 parts,

Asbestos wool 2 ~ 3 parts,

Antioxidant 1010 0.2 ~ 1 part,

Tissuemat E 1 ~ 2 part,

Titanium dioxide 1.8 ~ 2 parts,

4,4 ' two (α, α dimethyl benzyl) diphenylamines 1 ~ 1.5 part,

Cumyl peroxide 0.5 ~ 1 part,

Triallyl cyanurate 2 ~ 3 parts,

Dilauryl thiodipropionate 3 ~ 4 parts.

2. weatherproof cable according to claim 1, is characterized in that: be provided with between described flame-retardant layer (2) and double-sided aluminum foil layer (12) and weave by several aluminum-magnesium alloy wires the metal screen layer (10) formed.

3. weatherproof cable according to claim 1, is characterized in that: coated described polyester belt (11) outer surface of a two-sided aluminium foil layer (12).