CN212182009U

CN212182009U - Fire-resistant flame-retardant aviation cable

Info

Publication number: CN212182009U
Application number: CN202020995062.1U
Authority: CN
Inventors: 戴显尧; 邵立双; 韦玮; 张立; 姚智博; 王超; 曹亚飞
Original assignee: TIANJIN 609 CABLE CO Ltd
Current assignee: TIANJIN 609 CABLE CO Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-18
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to a fire-resistant flame-retardant aviation cable, comprising a twisted pair shielding wire, 1.0mm insulating single wires, a fire-resistant cotton blanket filling layer, a silver-plated copper wire braided outer shielding layer and a glass wire braided sheath; the twisted-pair shielded wire is formed by arranging a layer of silver-plated copper wire braided inner shielding layer outside two 0.20mm insulated single wires; be equipped with two 1.0mm insulating single lines transposition outside twisted pair shielded wire and constitute the cable core, weave outer shielding layer and glass silk around package fire-resistant cotton blanket filling layer, silver-plated copper wire in proper order outside the cable core and weave the sheath, weave the sheath at glass silk and coat a layer organosilicon lacquer outward. The aviation cable is good in flexibility, small in bending radius, capable of being normally installed and practical in a narrow space and strong in tensile property; has excellent fire resistance and fire retardance and can resist high and low temperature.

Description

Fire-resistant flame-retardant aviation cable

Technical Field

The utility model relates to a fire-resistant fire-retardant aviation cable is applied to electric control system in the aviation field, is one kind and is suitable for light current power and signal transmission and has fire-resistant, soft, tensile aviation cable.

Background

Common aviation cables in the current market have high hardness, large bending radius of corresponding leads, large occupied space during use and storage, and incapability of being normally used or installed under the condition of narrow use space or installation space; insulating shrinkage easily appears when ordinary wire is buckled or is crooked, and aerial cable all uses with the connector is supporting when generally using, and insulating shrinkage may cause the connector to glue or pyrocondensation department damage connector and drop, leads to the unable normal work of wire when causing the potential safety hazard.

The existing common aviation cable is low in breaking force and generally has no tensile property, and when a large tensile force is applied to a lead in the use process, a conductor of the lead is broken due to the fact that the lead bears the overlarge tensile force, so that the lead cannot be used under the conditions of no power on, power connection, reduced transmission property and the like.

The existing common aviation cable does not have good fire resistance, the fire resistance of a lead is not considered when the common aviation cable is designed and manufactured, a fire-resistant heat insulation layer is not arranged in the lead, when the common aviation cable meets the combustion condition, the direct current resistance of the lead can be changed rapidly, the lead insulation and a protective layer can be softened and even burnt to lose efficacy, and the product cannot be used and even has potential safety hazards.

Disclosure of Invention

In view of the deficiencies in the prior art, the utility model provides a fire-resistant fire-retardant aviation cable that is soft, possesses the pull resistance, has better refractiveness.

The utility model discloses a realize above-mentioned purpose, the technical scheme who takes is: a fire-resistant fire-retardant aviation cable which characterized in that: the fireproof insulation shield comprises a twisted pair shield wire, 1.0mm insulated single wires, a fireproof cotton blanket filling layer, a silver-plated copper wire braided outer shield layer and a glass fiber braided sheath;

the twisted-pair shielded wire is formed by arranging a layer of silver-plated copper wire braided inner shielding layer outside two 0.20mm insulated single wires;

be equipped with two 1.0mm insulating single lines transposition outside twisted pair shielded wire and constitute the cable core, weave outer shielding layer and glass silk around package fire-resistant cotton blanket filling layer, silver-plated copper wire in proper order outside the cable core and weave the sheath, weave the sheath at glass silk and coat a layer organosilicon lacquer outward.

The utility model has the advantages that: the conductor of the utility model is formed by twisting the alloy monofilaments with high nickel content, the conductor has high strength, excellent tensile resistance and excellent fire resistance, and the direct current resistance variation of the conductor is small when the lead is exposed to a fire source for a short time; the composite white mica tape is adopted outside the conductor as a fireproof heat-insulating layer, and the structure ensures that the lead has excellent fire resistance and heat insulation, and simultaneously gives consideration to the flexibility of the lead, so that the lead can be normally used under the condition of limited installation and use space; the insulating layer adopts a polyimide film and raw material belt combined structure, and the structure enables the lead to have the characteristics of light weight, excellent flexibility, flame retardance, chemical corrosion resistance, electric arc resistance, acid and alkali oil resistance, organic solvent corrosion resistance and the like; the protective layer and the sheath are made of woven glass filaments and coated with organic silicon paint, and the structure enables the wire to have the advantages of small size, light weight, high temperature resistance, flame retardance and the like, and improves the fire resistance and the flame retardance of the wire. The inner shielding layer and the outer shielding layer are formed by weaving silver-plated copper wires, and the silver-plated copper wires have excellent conductivity and shielding effects, so that the anti-electromagnetic crosstalk between signal transmission and weak current supply is improved, and the capability of resisting external electromagnetic interference is also improved. The filling layer is filled with the fireproof cotton blanket, so that the integral roundness of the cable is improved, and the integral fireproof and heat insulation effects of the cable are improved.

The aviation cable is good in flexibility, small in bending radius, capable of being normally installed and practical in a narrow space and strong in tensile property; has excellent fire resistance and fire retardance and can resist high and low temperature.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of a twisted pair shielded wire according to the present invention;

fig. 3 is a schematic structural diagram of the 0.20mm insulated single wire of the present invention;

fig. 4 is the utility model discloses 1.0mm insulated single line's structure schematic diagram.

Detailed Description

As shown in figures 1 to 4 of the drawings,

a fire-resistant flame-retardant aviation cable comprises a twisted pair shielding wire 1, 1.0mm insulating single wires 2, a fire-resistant cotton blanket filling layer 3, a silver-plated copper wire braided outer shielding layer 4 and a glass wire braided sheath 5.

The twisted-pair shielded wire 1 is formed by arranging a layer of silver-plated copper wire braided inner shielding layer 1-2 outside two 0.20mm insulated single wires 1-1.

The 0.20mm insulating single wire 1-1 is formed by sequentially arranging a composite white mica tape fire-resistant heat insulation layer I1-1-2, a polyimide film insulation layer I1-1-3, a raw material tape insulation layer I1-1-4 and a glass yarn woven protective layer I1-1-5 outside a high-nickel-content alloy single wire stranded conductor I1-1-1, and coating a layer of organic silicon paint outside the glass yarn woven protective layer I1-1-5.

The 1.0mm insulated single wire 2 is formed by sequentially arranging a composite white mica tape fire-resistant heat-insulating layer II 2-2, a polyimide film insulating layer II 2-3, a raw material tape insulating layer II 2-4 and a glass silk woven protective layer II 2-5 outside a high-nickel-content alloy single wire stranded conductor II 2-1, and coating a layer of organic silicon paint outside the glass silk woven protective layer II 2-5.

Be equipped with two 1.0mm insulating single lines 2 transposition outside twisted pair shielded wire 1 and constitute the cable core, around package fire-resistant cotton blanket filling layer 3, silver-plated copper wire woven outer shield layer 4 and glass silk woven sheath 5 outside the cable core in proper order, scribble a layer organosilicon lacquer outside glass silk woven sheath 5.

Claims

1. A fire-resistant fire-retardant aviation cable which characterized in that: the device comprises a twisted pair shielding wire (1), a 1.0mm insulating single wire (2), a refractory cotton blanket filling layer (3), a silver-plated copper wire braided outer shielding layer (4) and a glass fiber braided sheath (5);

the twisted pair shielding wire (1) is formed by arranging a layer of silver-plated copper wire braided inner shielding layer (1-2) outside two 0.20mm insulated single wires (1-1);

be equipped with two insulating single lines of 1.0mm (2) transposition outside twisted pair shielded wire (1) and constitute the cable core, have wrapped fire-resistant cotton blanket filling layer (3), silver-plated copper wire woven outer shield layer (4) and glass silk woven sheath (5) outward in proper order outside the cable core, scribble a layer organosilicon lacquer outside glass silk woven sheath (5).

2. The fire-resistant and flame-retardant aircraft cable of claim 1, wherein: the 0.20mm insulated single wire (1-1) is formed by sequentially arranging a composite white mica tape fire-resistant heat-insulating layer I (1-1-2), a polyimide film insulating layer I (1-1-3), a raw material tape insulating layer I (1-1-4) and a glass wire woven protective layer I (1-1-5) outside a high-nickel-content alloy single wire stranded conductor I (1-1-1), and coating a layer of organic silicon paint outside the glass wire woven protective layer I (1-1-5).

3. The fire-resistant and flame-retardant aircraft cable of claim 1, wherein: the 1.0mm insulated single wire (2) is formed by sequentially arranging a composite white mica tape fire-resistant heat insulation layer II (2-2), a polyimide film insulation layer II (2-3), a raw material tape insulation layer II (2-4) and a glass silk woven protective layer II (2-5) outside a high-nickel content alloy single wire stranded conductor II (2-1), and coating a layer of organic silicon paint outside the glass silk woven protective layer II (2-5).