CN103871559A - Cable used for aerospace - Google Patents
Cable used for aerospace Download PDFInfo
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- CN103871559A CN103871559A CN201410063353.6A CN201410063353A CN103871559A CN 103871559 A CN103871559 A CN 103871559A CN 201410063353 A CN201410063353 A CN 201410063353A CN 103871559 A CN103871559 A CN 103871559A
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Abstract
The invention discloses a cable used for aerospace. The cable comprises one central insulation cable core, four first outer insulation cable cores and four second outer insulation cable cores, wherein the four first outer insulation cable cores are longitudinally arranged on the outer side of the central insulation cable core in parallel and are in contact with the central insulation cable core; a copper braid shielding layer, a soft copper belt wrapping shielding layer, a fluoropolymer sheath layer wrap the central insulation cable core and the four first outer insulation cable cores in sequence; the four second outer insulation cable cores are arranged between the copper braid shielding layer and the soft copper belt wrapping shielding layer. The cable is widely applied to aircrafts, satellites, rockets and other aerocrafts, has the advantages of small outer diameter, light weight, high temperature resistance, oil proofness, inflaming retarding, other chemicals and the like, and is suitable for occasions with higher environment temperature and hostile conditions; the requirements of more safety and more insulation performance of aircraft cables are met, and the cable is suitable for hostile environments of high temperature, high voltage, explosion, magnetic field and the like.
Description
Technical field
The present invention relates to technical field of electric wires and cables, relate in particular to a kind of aerospace line cable.
Background technology
Electric wire is to transmit electricity (magnetic) energy, information and the wire product of realizing electromagnetic energy conversion.According to the regulation of International Electrotechnical Commission (IEC), high temperature-resistant cable refers to the electric wire that can normally work at 180 DEG C and above temperature, but the long-term work ambient temperature of general fire resistant electric wire cable is 65～200 DEG C of left and right.
But, the electric wire using under aerospace hot environment, cable antijamming capability is not strong, easily causes signal transmission disorder, even causes casualties or property loss.In addition, its weight can not meet aerospace requirement.At present, the transmission electric wire in the fields such as Aero-Space mainly adopts F46 insulated conductor, and that this class wire cable insulating extrudes is thick, volume large, Heavy Weight and aging in the easy cracking that stands to insulate after the high energy electron irradiation of outer space, and safety and reliability are poor.
Along with the development of Aero-Space science and technology, the requirement of the indexs such as the security performance to electric wire wiring system in aircraft, resistance to irradiation and insulation property and volume weight is more and more higher, and existing F46 insulated conductor has been difficult to meet the requirement of Aerospace Products to miniaturization, lightweight, high reliability future development.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of aerospace line cable, have advantages of that little, lightweight, the resistance to irradiation of volume, high-low temperature resistant, reliability are high.
A kind of aerospace line cable that the present invention proposes, comprise a central insulation core, four the first external insulation cores and four the second external insulation cores, central insulation core is made up of center conductor and the fluoropolymer insulating barrier that is coated on outside center conductor, the first external insulation core is made up of the first outer conductor and the fluoropolymer insulating barrier that is coated on outside the first outer conductor, the second external insulation core is made up of the second outer conductor and the fluoropolymer insulating barrier that is coated on outside the second outer conductor, wherein four the first external insulation core parallel vertical centre insulated wire cores outsides contacting with central insulation core, at central insulation core, four the first external insulation cores coated copper wire woven shield successively outward, soft copper band lapped shielding layer, fluoropolymer restrictive coating, wherein four the second external insulation cores are arranged between proof copper-wire braided screen and soft copper band lapped shielding layer, proof copper-wire braided screen is pressed into the space between two the first external insulation cores of arbitrary neighborhood by the second external insulation core, and the second external insulation core contacts with soft copper band lapped shielding layer.
Preferably, between two the first external insulation cores of arbitrary neighborhood, be equipped with hollow gap-filler shall bar, hollow gap-filler shall bar contacts with central insulation core, the first external insulation core and proof copper-wire braided screen respectively.In the time that cable is subject to external force extruding or distortion, hollow gap-filler shall bar provides the effect of an elastic buffer, avoids causing under external force the dislocation of central insulation core, the first external insulation core and the second external insulation core, has improved the quality of cable.
Preferably, the cross section of hollow gap-filler shall bar is oval.
Preferably, 50～80% of the excircle sectional area of the hollow area sectional area duty heart gap-filler shall bar of hollow gap-filler shall bar.
Preferably, center conductor, the first outer conductor, the second outer conductor are tinned copper wire or the silver-gilt copper wire of strands.
Preferably, the diameter of center conductor is greater than the diameter of the first outer conductor, and the diameter of the first outer conductor is greater than the diameter of the second outer conductor.
Preferably, the fluoropolymer Insulation Material that fluoropolymer insulating barrier, fluoropolymer restrictive coating adopt, comprise following weight portion raw material: polytetrafluoroethylene: 20～35 parts, Kynoar: 25～35 parts, fluorinated ethylene propylene copolymer: 40～65 parts, polyvinyl fluoride: 20～30 parts, polyphenylene sulfide: 10～18 parts.The fluoropolymer Insulation Material be made up of above-mentioned raw materials, has improved the chemical resistance, dielectric property, electric insulation of fluoropolymer insulating barrier, fluoropolymer restrictive coating, high temperature resistant, solderability, moisture resistance and mechanical strength etc.
Preferably, the fluoropolymer Insulation Material that fluoropolymer insulating barrier, fluoropolymer restrictive coating adopt, comprise following weight portion raw material: polytetrafluoroethylene: 25～30 parts, Kynoar: 28～31 parts, fluorinated ethylene propylene copolymer: 50～55 parts, polyvinyl fluoride: 15～16 parts, polyphenylene sulfide: 14～15 parts.
The present invention is widely used in aircraft, satellite, rocket and other aircraft, has that external diameter is little, lightweight, high temperature resistant, an advantage such as oil resistant, fire-retardant and other chemicals, is applicable to that ambient temperature is higher, the place of inclement condition.The present invention adopts fluoropolymer insulating barrier, fluoropolymer restrictive coating, solves the requirement that aircraft electric wire is provided to safer and better insulation property, is applicable under the rugged environments such as high temperature, high pressure, blast, magnetic field.In the present invention, central insulation core is for transferring high voltage alternating current, the first external insulation core is for transmission of control signals, the second external insulation core is for reception control signal, proof copper-wire braided screen is pressed into the space between two the first external insulation cores of arbitrary neighborhood by the second external insulation core, ensure the roundness of cable, and proof copper-wire braided screen separates the first insulated wire cores and the second insulated wire cores, has avoided signal transmission interference; Center conductor, the first outer conductor, the second outer conductor are zinc-plated silver-gilt copper wire, reduce conductive line surfaces resistance, have improved on the whole the conductive capability of wire.The present invention is provided with hollow gap-filler shall bar, under any external influence power, all can significantly not change the relative position between core, and hollow gap-filler shall bar plays the effect of buffering simultaneously.
Brief description of the drawings
Fig. 1 is the cross section structure schematic diagram of a kind of aerospace line cable of proposing of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the cross section structure schematic diagram of a kind of aerospace line cable of proposing of the present invention.
With reference to Fig. 1, a kind of aerospace line cable that the present invention proposes, comprise a central insulation core 1, four the first external insulation cores 2 and four the second external insulation cores 3, central insulation core 1 is made up of center conductor 11 and the fluoropolymer insulating barrier 12 that is coated on outside center conductor 11, the first external insulation core 2 is made up of the first outer conductor 21 and the fluoropolymer insulating barrier 22 that is coated on outside the first outer conductor 21, the second external insulation core 3 is made up of the second outer conductor 31 and the fluoropolymer insulating barrier 32 that is coated on outside the second outer conductor 31, wherein four the first external insulation core 2 parallel vertical centre insulated wire cores 1 outsides contacting with central insulation core 1, at central insulation core 1, four outer coated copper wire woven shields 5 successively of the first external insulation core 2, soft copper band lapped shielding layer 6, fluoropolymer restrictive coating 7, wherein four the second external insulation cores 3 are arranged between proof copper-wire braided screen 5 and soft copper band lapped shielding layer 6, proof copper-wire braided screen 5 is pressed into the space between two the first external insulation cores 2 of arbitrary neighborhood by the second external insulation core 3, and the second external insulation core 3 contacts with soft copper band lapped shielding layer 6.
Wherein, between two the first external insulation cores 2 of arbitrary neighborhood, being equipped with cross section is oval-shaped hollow gap-filler shall bar 4, and hollow gap-filler shall bar 4 contacts with central insulation core 1, the first external insulation core 2 and proof copper-wire braided screen 5 respectively.50～80% of the excircle sectional area of the hollow area sectional area duty heart gap-filler shall bar 4 of hollow gap-filler shall bar 4.In the time that cable is subject to external force extruding or distortion, hollow gap-filler shall bar provides the effect of an elastic buffer, avoids causing under external force the dislocation of central insulation core, the first external insulation core and the second external insulation core, has improved the quality of cable.
Wherein, center conductor 11, the first outer conductor 21, the second outer conductor 31 are tinned copper wire or the silver-gilt copper wire of strands, and the diameter of center conductor 11 is greater than the diameter of the first outer conductor 21, and the diameter of the first outer conductor 21 is greater than the diameter of the second outer conductor 31.
In the present invention, the fluoropolymer Insulation Material that fluoropolymer insulating barrier, fluoropolymer restrictive coating 7 adopt, comprise following weight portion raw material: polytetrafluoroethylene: 20～35 parts, Kynoar: 25～35 parts, fluorinated ethylene propylene copolymer: 40～65 parts, polyvinyl fluoride: 20～30 parts, polyphenylene sulfide: 10～18 parts.The fluoropolymer Insulation Material be made up of above-mentioned raw materials, has improved the chemical resistance, dielectric property, electric insulation of fluoropolymer insulating barrier, fluoropolymer restrictive coating, high temperature resistant, solderability, moisture resistance and mechanical strength etc.
In specific embodiment, the fluoropolymer Insulation Material that fluoropolymer insulating barrier, fluoropolymer restrictive coating 7 adopt, comprise following weight portion raw material: polytetrafluoroethylene: 28 parts, Kynoar: 29 parts, fluorinated ethylene propylene copolymer: 52 parts, polyvinyl fluoride: 15 parts, polyphenylene sulfide: 14 parts.
The present invention is widely used in aircraft, satellite, rocket and other aircraft, has that external diameter is little, lightweight, high temperature resistant, an advantage such as oil resistant, fire-retardant and other chemicals, is applicable to that ambient temperature is higher, the place of inclement condition.The present invention adopts fluoropolymer insulating barrier, fluoropolymer restrictive coating 7, solves the requirement that aircraft electric wire is provided to safer and better insulation property, is applicable under the rugged environments such as high temperature, high pressure, blast, magnetic field.In the present invention, central insulation core 1 is for transferring high voltage alternating current, the first external insulation core 2 is for transmission of control signals, the second external insulation core 3 is for reception control signal, proof copper-wire braided screen 5 is pressed into the space between two the first external insulation cores 2 of arbitrary neighborhood by the second external insulation core 3, ensure the roundness of cable, and proof copper-wire braided screen 5 separates the first insulated wire cores 2 and the second insulated wire cores 3, has avoided signal transmission interference; Center conductor 11, the first outer conductor 21, the second outer conductor 31 are zinc-plated silver-gilt copper wire, can reduce conductive line surfaces resistance, have improved on the whole the conductive capability of wire.The present invention arranges antifriction adhesive-layer 13 on central insulation core, under any external influence power, all can significantly not change the relative position between core, hollow gap-filler shall bar 4 plays the effect of buffering simultaneously, prevents that 13 inefficacies of antifriction adhesive-layer from causing the dislocation of the position between core.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. an aerospace line cable, it is characterized in that, comprise a central insulation core (1), four the first external insulation cores (2) and four the second external insulation cores (3), central insulation core (1) is by center conductor (11) and be coated on outer fluoropolymer insulating barrier (12) formation of center conductor (11), the first external insulation core (2) is by the first outer conductor (21) and be coated on outer fluoropolymer insulating barrier (22) formation of the first outer conductor (21), the second external insulation core (3) is by the second outer conductor (31) and be coated on outer fluoropolymer insulating barrier (32) formation of the second outer conductor (31), wherein four the first parallel vertical centre insulated wire cores of external insulation core (2) (1) outsides contacting with central insulation core (1), in central insulation core (1), four outer coated copper wire woven shields (5) successively of the first external insulation core (2), soft copper band lapped shielding layer (6), fluoropolymer restrictive coating (7), wherein four the second external insulation cores (3) are arranged between proof copper-wire braided screen (5) and soft copper band lapped shielding layer (6), proof copper-wire braided screen (5) is pressed into the space between two the first external insulation cores (2) of arbitrary neighborhood by the second external insulation core (3), and the second external insulation core (3) contacts with soft copper band lapped shielding layer (6).
2. aerospace line cable according to claim 1, it is characterized in that, between two the first external insulation cores (2) of arbitrary neighborhood, be equipped with hollow gap-filler shall bar (4), hollow gap-filler shall bar (4) contacts with central insulation core (1), the first external insulation core (2) and proof copper-wire braided screen (5) respectively.
3. aerospace line cable according to claim 2, is characterized in that, the cross section of hollow gap-filler shall bar (4) is oval.
4. aerospace line cable according to claim 2, is characterized in that, 50～80% of the excircle sectional area of the hollow area sectional area duty heart gap-filler shall bar (4) of hollow gap-filler shall bar (4).
5. aerospace line cable according to claim 1, is characterized in that, center conductor (11), the first outer conductor (21), the second outer conductor (31) are tinned copper wire or the silver-gilt copper wire of strands.
6. aerospace line cable according to claim 1 or 5, is characterized in that, the diameter of center conductor (11) is greater than the diameter of the first outer conductor (21), and the diameter of the first outer conductor (21) is greater than the diameter of the second outer conductor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063353.6A CN103871559B (en) | 2014-02-24 | 2014-02-24 | A kind of aerospace line cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063353.6A CN103871559B (en) | 2014-02-24 | 2014-02-24 | A kind of aerospace line cable |
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| Publication Number | Publication Date |
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| CN103871559A true CN103871559A (en) | 2014-06-18 |
| CN103871559B CN103871559B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410063353.6A Expired - Fee Related CN103871559B (en) | 2014-02-24 | 2014-02-24 | A kind of aerospace line cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485161A (en) * | 2014-12-22 | 2015-04-01 | 特变电工(德阳)电缆股份有限公司 | Oil-proof and dragging-resistant coiled control cable |
| CN107230529A (en) * | 2017-05-24 | 2017-10-03 | 晋源电气集团股份有限公司 | A kind of flame-resistant high-temperature-resistant controls cable |
| CN107910109A (en) * | 2017-10-19 | 2018-04-13 | 芜湖缆胜电缆新材料有限公司 | A kind of anti-twist power cable |
| CN113488238A (en) * | 2021-06-10 | 2021-10-08 | 安徽凌宇电缆科技有限公司 | Metal shielding wrapping braided reinforced rubber jacketed flexible cable of coal mining machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003346572A (en) * | 2002-05-28 | 2003-12-05 | Fujikura Ltd | Lan cable |
| CN1691212A (en) * | 2004-04-19 | 2005-11-02 | 尼克桑斯公司 | Flexible control electrical wire |
| CN201327736Y (en) * | 2008-12-08 | 2009-10-14 | 赵振海 | Mine cable also for fiber communication |
| CN102314962A (en) * | 2011-08-24 | 2012-01-11 | 宝胜科技创新股份有限公司 | Special composite branch cable used for railway tunnels |
| CN203826035U (en) * | 2014-02-24 | 2014-09-10 | 安徽华联电缆集团有限公司 | Wire cable for aerospace |
-
2014
- 2014-02-24 CN CN201410063353.6A patent/CN103871559B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003346572A (en) * | 2002-05-28 | 2003-12-05 | Fujikura Ltd | Lan cable |
| CN1691212A (en) * | 2004-04-19 | 2005-11-02 | 尼克桑斯公司 | Flexible control electrical wire |
| CN201327736Y (en) * | 2008-12-08 | 2009-10-14 | 赵振海 | Mine cable also for fiber communication |
| CN102314962A (en) * | 2011-08-24 | 2012-01-11 | 宝胜科技创新股份有限公司 | Special composite branch cable used for railway tunnels |
| CN203826035U (en) * | 2014-02-24 | 2014-09-10 | 安徽华联电缆集团有限公司 | Wire cable for aerospace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485161A (en) * | 2014-12-22 | 2015-04-01 | 特变电工(德阳)电缆股份有限公司 | Oil-proof and dragging-resistant coiled control cable |
| CN107230529A (en) * | 2017-05-24 | 2017-10-03 | 晋源电气集团股份有限公司 | A kind of flame-resistant high-temperature-resistant controls cable |
| CN107910109A (en) * | 2017-10-19 | 2018-04-13 | 芜湖缆胜电缆新材料有限公司 | A kind of anti-twist power cable |
| CN113488238A (en) * | 2021-06-10 | 2021-10-08 | 安徽凌宇电缆科技有限公司 | Metal shielding wrapping braided reinforced rubber jacketed flexible cable of coal mining machine |
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| Publication number | Publication date |
|---|---|
| CN103871559B (en) | 2015-12-30 |
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Granted publication date: 20151230 Termination date: 20190224 |