CN213339711U - Ultra-light aerospace cable - Google Patents
Ultra-light aerospace cable Download PDFInfo
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- CN213339711U CN213339711U CN202021999856.1U CN202021999856U CN213339711U CN 213339711 U CN213339711 U CN 213339711U CN 202021999856 U CN202021999856 U CN 202021999856U CN 213339711 U CN213339711 U CN 213339711U
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Abstract
An ultra-light aerospace cable comprises 0.35mm composite insulated single wires, 0.75mm composite insulated single wires, an ultra-light silver-plated copper-clad aluminum alloy single wire braided inner shielding layer, a silver-plated copper out-of-band shielding layer, an aramid braided reinforcing layer and a cross-linked ethylene-tetrafluoroethylene copolymer sheath; outer of two 0.35mm compound insulating single lines and two 0.75mm compound insulating single lines, be equipped with ultra-light silver-plated copper clad aluminum alloy single line in proper order and weave inner shield layer, silver-plated copper out-of-band shielding layer, aramid fiber weave enhancement layer, crosslinked ethylene-tetrafluoroethylene copolymer sheath. The ultra-light aerospace cable is resistant to high and low temperatures, strong in tensile strength, excellent in insulation and pressure resistance, flame-retardant and light in weight.
Description
Technical Field
The utility model relates to an ultra-light aerospace cable is applied to the circuit connection between electrical equipment and the instrument circuit among communication fields such as aviation, space flight, boats and ships, is one kind and is suitable for weak current power and signal transmission and has resistant high low temperature, high strength, fire-retardant, ultra-light aerospace cable.
Background
Ordinary aerospace cable in the existing market, silver-plated copper wire core that density is about 8.9g/cm is selected for use more to conductor material, shielding material, insulating, sheath material select for use more that density is at 2.1g/cm ~2.3g/cm fortune polyperfluorinated ethylene propylene or polytetrafluoroethylene that weighs down, these material density are great, cause finished cable weight to be bigger partially, and aerospace cable generally uses in the environment that space is restricted, weight requirement is strict, can't satisfy the user requirement if cable weight is too big, the increase of each gram of cable weight all brings high research and development cost and the production degree of difficulty for aerospace.
The existing common aerospace cable does not have a high voltage-resistant grade, the volume and the weight of the cable are considered when the common aerospace cable is designed and manufactured, a single-layer thin layer or a structure with two layers of thin layers made of the same materials is generally selected as an insulating layer, and the voltage-resistant grade of the cable is not high. When the use voltage is higher and the upper limit of the withstand voltage of the insulation is reached, the insulation layer of the cable breaks down, so that the cable fails.
The existing common aerospace cable generally does not have tensile property, and when a large tensile force is applied to the cable in the using process, conductors and insulation of the cable can be broken and damaged due to the fact that the cable bears the excessive tensile force, so that the cable cannot be used under the conditions of no power on, power connection, reduced transmission performance and the like.
At present, in common aerospace cables in the market, the shielding mostly adopts a silver-plated copper wire or tin-plated copper wire braided structure, the shielding efficiency is general, and the cables are easy to be interfered and influence transmission when being bundled with other electric power or signal wires and cables.
Disclosure of Invention
In view of the deficiencies in the prior art, the utility model provides a resistant high low temperature, tensile good, the insulating resistance to pressure good, fire-retardant, ultra-light aerospace cable.
The utility model discloses a realize above-mentioned purpose, the technical scheme who takes is: an ultra-light aerospace cable, which is characterized in that: the composite insulating single wire with the thickness of 0.35mm, the composite insulating single wire with the thickness of 0.75mm, the ultra-light silver-plated copper-clad aluminum alloy single wire braided inner shielding layer, the silver-plated copper out-of-band shielding layer, the aramid braided reinforcing layer and the cross-linked ethylene-tetrafluoroethylene copolymer sheath are included;
outer of two 0.35mm compound insulating single lines and two 0.75mm compound insulating single lines, be equipped with ultra-light silver-plated copper clad aluminum alloy single line in proper order and weave inner shield layer, silver-plated copper out-of-band shielding layer, aramid fiber weave enhancement layer, crosslinked ethylene-tetrafluoroethylene copolymer sheath.
The utility model has the advantages that:
the utility model discloses the conductor adopts the transposition of ultra-light type silvering copper alclad alloy monofilament to form, and conductor weight is light, and the electrical performance is excellent, and it is obvious to subtract heavy effect. The polyvinylidene fluoride and crosslinked ethylene-tetrafluoroethylene copolymer composite structure is adopted as the cable insulation layer outside the conductor, the cable has higher voltage resistance grade and excellent irradiation resistance due to the structure, and meanwhile, the density of the material is smaller than that of other fluoroplastics, so that the overall weight of the cable is lighter. The shielding adopts an ultra-light silver-plated copper-clad aluminum alloy single wire weaving and silver-plated copper strip wrapping combined structure, the ultra-light silver-plated copper-clad aluminum alloy single wire is used as a shielding material, the weight reduction effect provided for the cable is obvious, and meanwhile, the shielding efficiency is more superior to that of a common silver-plated copper wire and a tinned copper wire because the material is an alloy of various metals; the silver-plated copper strip is used as a wrapping type external shield, and is relatively braided with the shielding, so that the cable has the characteristics of light weight, small volume, large coverage rate, high shielding efficiency and the like. The reinforced layer adopts a woven aramid structure, has the advantages of small volume, light weight, high strength and the like, and improves the tensile property of the cable. The sheath adopts a cross-linked ethylene-tetrafluoroethylene copolymer extrusion structure, the structure ensures that the cable has the characteristics of light weight, flame retardance, chemical corrosion resistance, acid and alkali oil resistance, organic solvent corrosion resistance and the like, and simultaneously provides excellent radiation resistance for the cable, so that the cable meets the use requirements in the fields of aviation and aerospace
The ultra-light aerospace cable is resistant to high and low temperatures, strong in tensile strength, excellent in insulation and pressure resistance, flame-retardant and light in weight.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the 0.35mm composite insulating single wire of the present invention;
fig. 3 is the utility model discloses 0.75mm compound insulation single line's structure schematic diagram.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, an ultra-light aerospace cable is characterized in that: including 0.35mm compound insulated single wire 1, 0.75mm compound insulated single wire 2, inner shield layer 3, outer shield layer 4, reinforcing layer 5, sheath 6.
The 0.35mm composite insulated single wire 1 is formed by stranding a plurality of ultra-light silver-plated copper-clad aluminum alloy single wires to form a conductor I1-1, a polyvinylidene fluoride inner layer insulating layer I1-2 is arranged outside the conductor I1-1, and a cross-linked ethylene-tetrafluoroethylene copolymer outer layer insulating layer I1-3 is arranged outside the polyvinylidene fluoride inner layer insulating layer I1-2.
The 0.75mm composite insulated single wire 2 is formed by stranding a plurality of ultra-light silver-plated copper-clad aluminum alloy single wires to form a conductor II 2-1, a polyvinylidene fluoride inner layer insulating layer II 2-2 is arranged outside the polyvinylidene fluoride inner layer insulating layer II 2-2, and a cross-linked ethylene-tetrafluoroethylene copolymer outer layer insulating layer II 2-3 is arranged outside the polyvinylidene fluoride inner layer insulating layer II 2-2.
Outside two 0.35mm compound insulating single lines 1 and two 0.75mm compound insulating single lines 2, be equipped with in proper order that ultra-light type silver-plated copper clad aluminum alloy single line weaves inner shield layer 3, silver-plated copper strips outer shield layer 4, aramid weave enhancement layer 5, crosslinked ethylene-tetrafluoroethylene copolymer sheath 6.
Claims (3)
1. An ultra-light aerospace cable, which is characterized in that: the composite insulated single wire (1) with the thickness of 0.35mm, the composite insulated single wire (2) with the thickness of 0.75mm, the ultra-light silver-plated copper-clad aluminum alloy single wire braided inner shielding layer (3), the silver-plated copper-clad aluminum alloy outer shielding layer (4), the aramid fiber braided reinforcing layer (5) and the cross-linked ethylene-tetrafluoroethylene copolymer sheath (6) are included;
outside two 0.35mm compound insulating single lines (1) and two 0.75mm compound insulating single lines (2), be equipped with ultralight silver-plated copper clad aluminum alloy single line woven inner shield layer (3), silver-plated copper out-of-band shield layer (4), aramid woven reinforcement layer (5), crosslinked ethylene-tetrafluoroethylene copolymer sheath (6) in proper order.
2. An ultra-light aerospace cable according to claim 1, wherein: the 0.35mm composite insulated single wire (1) is formed by stranding a plurality of ultra-light silver-plated copper-clad aluminum alloy single wires to form a conductor I (1-1), and a polyvinylidene fluoride inner layer insulating layer I (1-2) is arranged outside the polyvinylidene fluoride inner layer insulating layer I (1-2), and a crosslinked ethylene-tetrafluoroethylene copolymer outer layer insulating layer I (1-3) is arranged outside the polyvinylidene fluoride inner layer insulating layer I (1-2).
3. An ultra-light aerospace cable according to claim 1, wherein: the 0.75mm composite insulated single wire (2) is formed by stranding a plurality of ultra-light silver-plated copper-clad aluminum alloy single wires to form a conductor II (2-1), and a polyvinylidene fluoride inner layer insulating layer II (2-2) is arranged outside the polyvinylidene fluoride inner layer insulating layer II (2-2), and a cross-linked ethylene-tetrafluoroethylene copolymer outer layer insulating layer II (2-3) is arranged outside the polyvinylidene fluoride inner layer insulating layer II (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021999856.1U CN213339711U (en) | 2020-09-14 | 2020-09-14 | Ultra-light aerospace cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021999856.1U CN213339711U (en) | 2020-09-14 | 2020-09-14 | Ultra-light aerospace cable |
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| Publication Number | Publication Date |
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| CN213339711U true CN213339711U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021999856.1U Active CN213339711U (en) | 2020-09-14 | 2020-09-14 | Ultra-light aerospace cable |
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| CN (1) | CN213339711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116844753A (en) * | 2022-12-22 | 2023-10-03 | 湖北航天电缆有限公司 | Photoelectric composite cable for unmanned aerial vehicle and preparation method thereof |
-
2020
- 2020-09-14 CN CN202021999856.1U patent/CN213339711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116844753A (en) * | 2022-12-22 | 2023-10-03 | 湖北航天电缆有限公司 | Photoelectric composite cable for unmanned aerial vehicle and preparation method thereof |
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