CN211828261U - Ultra-light soft high-temperature-resistant flat cable for aircraft - Google Patents
Ultra-light soft high-temperature-resistant flat cable for aircraft Download PDFInfo
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- CN211828261U CN211828261U CN202020729609.3U CN202020729609U CN211828261U CN 211828261 U CN211828261 U CN 211828261U CN 202020729609 U CN202020729609 U CN 202020729609U CN 211828261 U CN211828261 U CN 211828261U
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Abstract
The utility model discloses an ultra-light soft high temperature resistant flat cable for an aircraft, which comprises a plurality of high temperature resistant wires, a braided sheath layer, a wrapping shielding layer and a polyimide wrapping fixing layer; wherein, many high temperature resistant wires make up into the multicore cable, weave the restrictive coating cladding in the multicore cable, wrap the restrictive coating cladding in weaving the restrictive coating around the package shielding layer, and polyimide wraps the fixed packet cladding in wrapping the shielding layer. The ultra-light soft high-temperature-resistant flat cable for the aircraft has a double-shielding structure, is excellent in shielding performance and free from interference of external signals and electromagnetic fields, is made of high-temperature-resistant, soft and light materials, reduces the overall weight of the cable, and improves the high-temperature resistance and the cable bending performance.
Description
Technical Field
The utility model relates to a power cable technical field, in particular to aircraft is with soft high temperature resistant flat cable of ultralight-duty.
Background
The ultra-light flexible high-temperature resistant flat cable for the aircraft is mainly used for signal control and power output in an engine compartment of the aircraft, and due to the structure of the engine compartment of the aircraft, the requirements on the structure and performance of the cable which is used for transmitting electric energy are extremely high. On the one hand, due to the structural limitations of aircraft engine compartments, cable structures are required that are flat, lightweight and flexible, making it easier to route within the engine compartment and saving space, while better controlling the overall weight of the aircraft accessory. On the other hand, the cable needs to have excellent shielding and high temperature resistance performances, the excellent shielding performance can effectively reduce electromagnetic signal interference of the cable in the environment during signal transmission, and the excellent high temperature resistance can effectively avoid the situation that the cable is damaged due to overhigh temperature and long-time working temperature accumulation caused by high working state temperature of the engine, closed and narrow environment in the engine cabin.
However, the cable developed for the closed environment in the current market has poor temperature resistance and shielding performance, and the use requirement of products for aircrafts is difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome above-mentioned technique not enough, provide an aircraft is with soft high temperature resistant flat cable of ultralight-duty, temperature resistance and the relatively poor technical problem of shielding property among the solution prior art.
In order to achieve the technical purpose, the utility model provides an ultra-light soft high temperature resistant flat cable for an aircraft, which comprises a plurality of high temperature resistant wires, a braided sheath layer, a wrapping shielding layer and a polyimide wrapping fixing layer; wherein the content of the first and second substances,
many high temperature resistant wires make up into the multicore cable, weave the restrictive coating cladding in the multicore cable, wrap the covering shielding layer cladding in weaving the restrictive coating, polyimide wraps the covering fixed coat cladding in wrapping the covering shielding layer.
Compared with the prior art, the beneficial effects of the utility model are that:
the ultra-light soft high-temperature-resistant flat cable for the aircraft has a double-shielding structure, is excellent in shielding performance and free from interference of external signals and electromagnetic fields, is made of high-temperature-resistant, soft and light materials, reduces the overall weight of the cable, and improves the high-temperature resistance and the cable bending performance.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the ultra-light soft high-temperature resistant flat cable for the aircraft provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model provides an ultra-light soft high temperature resistant flat cable for an aircraft, which comprises a plurality of high temperature resistant wires 1, a braided sheath layer 2, a lapping shielding layer 3 and a polyimide lapping fixing layer 4; wherein, many high temperature resistant wires 1 make up into the multicore cable, weave restrictive coating 2 cladding in the multicore cable, wrap 3 cladding in weaving restrictive coating 2 around the covering shielding layer, polyimide wraps the covering fixed bed 4 cladding in wrapping shielding layer 3 around.
In the utility model, a double-layer shielding structure of 'braided shielding layer + wrapping shielding layer' is adopted, and the 'braided shielding' structure can ensure that the wire core is not interfered by electric fields generated by other wire cores in the cable and external electromagnetic fields; "can guarantee around package shielding" structure that whole cable does not receive the interference of external electromagnetic field, can also shield the electromagnetic field that whole cable produced, prevent to produce cross interference, outer shielding layer can also act as the effect of armor in addition, can protect the cable core not receive external force to a certain extent and harm.
The utility model discloses in, polyimide adopts the polyimide sticky tape around package fixed bed 4, mainly plays the fixed effect around package shielding layer 3 to this is high temperature resistant material, is favorable to improving the temperature resistant grade of cable itself.
Preferably, the plurality of high temperature resistant wires 1 include a first wire 11, a second wire 12, a third wire 13, a fourth wire 14 and a fifth wire 15; wherein the content of the first and second substances,
the first lead 11, the second lead 12, the third lead 13 and the fourth lead 14 are all composed of a first conductor 1A, a first wrapping insulating layer 1B, a first braided shielding layer 1C and a first wrapping sheath layer 1D which are sequentially coated on the outer side of the first conductor 1A from inside to outside;
the fifth lead 15 comprises a second conductor 1E, a second lapping insulation layer 1F, a filler 1G, a second braided shielding layer 1H and a second lapping sheath layer 1I; the second is around the cladding of package insulating layer 1F in second conductor 1E, forms insulating heart yearn, and shielding layer 1H cladding is woven in insulating heart yearn to the second, and the packing has filler 1G between the two, and the second is around the cladding of package restrictive coating 1I cladding in second woven shielding layer 1H. Specifically, a crosslinked tetrafluoroethylene-ethylene copolymer (XETFE) is used as the filler 1G. The utility model discloses in, adopt around package type insulating sheath to replace extruding type insulation and sheath, greatly reduced product weight to the compliance of product has been improved.
Specifically, the number of the first wires 11 is 3 to 6, the number of the first conductors 1A in the first wires is 4, and the cross-sectional area of the first conductors 1A is 0.30 to 0.40mm2(ii) a The number of the second wires 12 is 1-3, the number of the first conductors 1A in the second wires is 4, and the cross-sectional area of the first conductors 1A is 0.15-0.25 mm2(ii) a Third stepThe number of the wires 13 is 1-2, the number of the first conductors 1A in the third wire is 3, and the cross-sectional area of the first conductors 1A is 0.15-0.25 mm2(ii) a The number of the fourth wires 14 is 2-6, the number of the first conductors 1A in the fourth wires is 2, and the cross-sectional area of the first conductors 1A is 0.10-0.20 mm2(ii) a The number of the fifth wires 15 is 1-3, the number of the second conductors 11E in the fifth wires is 2, and the cross-sectional area of the second conductors 1E is 0.15-0.25 mm2。
Furthermore, the first conductor 1A and the second conductor 1E are both made of silver-plated copper stranded wires, the silver-plated copper stranded wires are required to meet the regulation of JB/T3135, the thickness of a silver layer is not less than 1 mu m, and the stranded conductors are smooth and flat in appearance and good in bending performance.
Further, the first lapping insulating layer 1B comprises an inner insulating layer and an outer insulating layer; the inner insulating layer is a polytetrafluoroethylene/polyimide/polytetrafluoroethylene (F4/PI/F4) composite tape wrapping layer wrapping the first conductor 1A, and the outer insulating layer is a polytetrafluoroethylene (F4) raw material tape wrapping layer wrapping the inner insulating layer, so that the cable has high temperature resistance.
Furthermore, silver-plated soft copper wires are adopted as the first braided shielding layer 1C, the specification of JB/T3135 is met, the thickness of the silver layer is not less than 1 μm, and the braiding density is not less than 85%.
Further, the first wrapping sheath layer 1D adopts a perfluorinated ethylene propylene/polyimide/perfluorinated ethylene propylene (F46/PI/F46) composite tape, and the requirements of light weight, high temperature resistance and flexibility of the cable are met.
Further, the second lapping insulating layer 1F and the second lapping sheath layer 1I both adopt cross-linked ethylene-tetrafluoroethylene copolymer materials.
Further, the second braided shielding layer 1H is made of copper alloy, and the braiding density is not less than 90%.
Specifically, the performance indexes of the F4/PI/F4 composite tape, the F4 raw material tape and the F46/PI/F46 composite tape are shown in Table 1.
TABLE 1 Performance indices of F4/PI/F4 composite tape, F4 raw material tape and F46/PI/F46 composite tape
Specifically, the first conductor 11, the second conductor 12, the third conductor 13, the fourth conductor 14 and the fifth conductor 15 are FY4 series polyimide/teflon composite insulated wire cables, and the compositions thereof are shown in table 2.
TABLE 2 ultra-light soft high-temperature resistant flat cable core wire composition for aircraft
Preferably, the braided sheath layer 2 uses golden yellow polyimide fiber filaments. The utility model discloses in, weave into the flat line with multiunit FY4 cable through adopting golden yellow polyimide fiber filament, not only guarantee the pleasing to the eye of cable, also guaranteed the holistic temperature resistant grade of cable.
Preferably, adopt the mesh number to be the copper alloy net more than 363 meshes around package shielding layer 3, make the cable be double-deck shielding structure, improved the shielding performance of cable, can effectively shield external signal interference, also can play the effect of certain protection sinle silk as the armor.
The utility model discloses an adopt golden yellow polyimide fibre long filament to weave side by side with a plurality of wires and form wire unit 1, the outward appearance after weaving levels, inseparable, and weave the silk and arrange evenly, and the copper alloy net shielding more than the package 363 mesh is lapped to the back, adopts the polyimide sticky tape to obtain around the package protection at last. According to the ultra-light soft high-temperature-resistant flat cable core wire for the aircraft, the wrapping type insulating sheath is adopted to replace an extrusion type insulating sheath and a sheath, so that the weight of a product is greatly reduced, and the softness of the product is improved; because the shielding layers are respectively arranged inside the core wire and outside the whole cable, the cable is of a double-shielding structure, has excellent shielding performance and is not interfered by external signals and electromagnetic fields; the core wire insulating sheath material, the weaving material and the outer sheath material are made of high-temperature resistant polyimide composite films and adhesive tape materials, the rated service temperature of the cable can reach-65 ℃ to +250 ℃, and the cable can resist the temperature of 350 ℃ and 120 seconds in a short time.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. An ultra-light soft high-temperature-resistant flat cable for an aircraft is characterized by comprising a plurality of high-temperature-resistant wires, a braided sheath layer, a wrapping shielding layer and a polyimide wrapping fixing layer; wherein the content of the first and second substances,
the multi-core cable is formed by combining the high-temperature-resistant wires, the braided sheath layer is coated on the multi-core cable, the braided sheath layer is coated on the wrapping shielding layer, and the polyimide is coated on the wrapping shielding layer in a wrapping mode.
2. The ultra-light soft high temperature resistant flat cable for the aircraft according to claim 1, wherein the plurality of high temperature resistant wires comprises a first wire, a second wire, a third wire, a fourth wire and a fifth wire; wherein the content of the first and second substances,
the first lead, the second lead, the third lead and the fourth lead are all composed of a first conductor, a first wrapping insulating layer, a first braided shielding layer and a first wrapping sheath layer, wherein the first wrapping insulating layer, the first braided shielding layer and the first wrapping sheath layer are sequentially coated on the outer side of the first conductor from inside to outside;
the fifth lead comprises a second conductor, a second wrapping insulating layer, a filler, a second braided shielding layer and a second wrapping sheath layer; the second is around the cladding insulating layer cladding in the second conductor forms the insulating heart yearn, the second is woven the shielding layer cladding in the insulating heart yearn, just it has the filler to weave the shielding layer with the insulating heart yearn space-filling, the second is around the cladding restrictive coating cladding in the second is woven the shielding layer.
3. The ultra-light flexible high temperature resistant flat cable for aircraft according to claim 2, wherein the first conductor is a metal wireThe number of the wires is 3-6, the number of the first conductors in the first lead is 4, and the cross-sectional area of each first conductor is 0.30-0.40 mm2；
The number of the second wires is 1-3, the number of the first conductors in the second wires is 4, and the cross-sectional area of each first conductor is 0.15-0.25 mm2；
The number of the third wires is 1-2, the number of the first conductors in the third wires is 3, and the cross-sectional area of each first conductor is 0.15-0.25 mm2；
The number of the fourth conducting wires is 2-6, the number of the first conductors in the fourth conducting wires is 2, and the cross-sectional area of each first conductor is 0.10-0.20 mm2；
The number of the fifth wires is 1-3, the number of the second conductors in the fifth wires is 2, and the cross-sectional area of each second conductor is 0.15-0.25 mm2。
4. The ultra-light soft high temperature resistant flat cable for the aircraft as claimed in claim 2, wherein the first wrapped insulating layer comprises an inner insulating layer and an outer insulating layer; the inner insulating layer is a polytetrafluoroethylene/polyimide/polytetrafluoroethylene composite tape wrapping layer wrapping the first conductor, and the outer insulating layer is a polytetrafluoroethylene raw material tape wrapping layer wrapping the inner insulating layer.
5. The ultra-light soft high-temperature-resistant flat cable for the aircraft according to claim 2, wherein the first braided shielding layer is made of silver-plated soft copper wires, the thickness of a silver layer is not less than 1 μm, and the braiding density is not less than 85%.
6. The ultra-light soft high-temperature-resistant flat cable for the aircraft as claimed in claim 2, wherein the first wrapping sheath layer is a fluorinated ethylene propylene/polyimide/fluorinated ethylene propylene composite tape.
7. The ultra-light soft high temperature resistant flat cable for the aircraft according to claim 2, wherein the second lapping insulating layer and the second lapping sheath layer are both made of a cross-linked ethylene-tetrafluoroethylene copolymer material.
8. The ultra-light flexible high-temperature resistant flat cable for the aircraft according to claim 2, wherein the second braided shielding layer is made of copper alloy, and the braiding density is not less than 90%.
9. The ultra-light soft high temperature resistant flat cable for the aircraft as claimed in claim 1, wherein the woven sheath layer is made of golden yellow polyimide fiber filaments.
10. The ultra-light soft high temperature resistant flat cable for the aircraft as claimed in claim 1, wherein the lapping shielding layer is made of copper alloy mesh with mesh number of 363 mesh or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020729609.3U CN211828261U (en) | 2020-05-06 | 2020-05-06 | Ultra-light soft high-temperature-resistant flat cable for aircraft |
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| CN202020729609.3U CN211828261U (en) | 2020-05-06 | 2020-05-06 | Ultra-light soft high-temperature-resistant flat cable for aircraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116206805A (en) * | 2023-03-07 | 2023-06-02 | 江苏通光电子线缆股份有限公司 | Aviation cable and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116206805A (en) * | 2023-03-07 | 2023-06-02 | 江苏通光电子线缆股份有限公司 | Aviation cable and preparation method thereof |
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