CN212032754U - Light flexible high-temperature coaxial cable - Google Patents
Light flexible high-temperature coaxial cable Download PDFInfo
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- CN212032754U CN212032754U CN202020727672.3U CN202020727672U CN212032754U CN 212032754 U CN212032754 U CN 212032754U CN 202020727672 U CN202020727672 U CN 202020727672U CN 212032754 U CN212032754 U CN 212032754U
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Abstract
The utility model discloses a soft high-temperature coaxial cable, which comprises a first conductor, and an insulating layer, a second conductor, a shielding layer and an outer sheath which are arranged outside the first conductor in sequence from inside to outside along the radial direction of the first conductor; the second conductor comprises a woven structure layer formed by weaving a plurality of carbon nanotube conductive fibers, and the shielding layer comprises a carbon nanotube film wrapped on the outer side of the second conductor. The embodiment of the utility model provides a gentle high temperature coaxial cable, has effectively alleviateed coaxial cable's weight and has improved the flexibility of cable to coaxial cable's performance has greatly been improved; and, compare in traditional copper silver cable, the embodiment of the utility model provides a unit weight of gentle high temperature coaxial cable has reduced 20 ~ 40%, has both satisfied coaxial cable's operation requirement, satisfies light, resistant crooked requirement again.
Description
Technical Field
The utility model relates to a coaxial cable, in particular to gentle high temperature coaxial cable belongs to mechanical technical field.
Background
The traditional radio frequency coaxial cable structure consists of an inner conductor and an outer conductor which are arranged on the same axis, an insulating layer with low dielectric constant and low loss and a sheath which is positioned on the outermost layer and has a protection function; while the weight and rigidity for the coaxial cable comes primarily from the inner and outer conductors and the shield. In fields such as naval vessels and unmanned aerial vehicle, need use coaxial cable in a large number, the electric conductivity of traditional copper, silver conductor is very good, but the quality of copper, silver conductor is big, the price is high, greatly increased cost and the burden of using, restricted its scope of use even.
SUMMERY OF THE UTILITY MODEL
The main objective of the utility model is to provide a high temperature coaxial cable of gentle mollisation of nanometer carbon outer conductor and shielding layer to overcome not enough among the prior art.
For realizing the purpose of the utility model, the utility model discloses a technical scheme include:
the embodiment of the utility model provides a gentle high temperature coaxial cable, it includes first conductor and sets gradually insulating layer, second conductor, shielding layer and the oversheath outside first conductor from inside to outside along the radial direction of first conductor; the second conductor comprises a woven structure layer formed by weaving a plurality of carbon nanotube conductive fibers, and the shielding layer comprises a carbon nanotube film wrapped on the outer side of the second conductor.
Furthermore, the carbon nanotube conductive fiber is formed by compounding the carbon nanotube fiber and metal.
Further, the weaving density of the second conductor is more than 90%.
Further, the carbon nanotube conductive fiber includes a carbon nanotube fiber and a metal layer formed on a surface of the carbon nanotube fiber.
Further, the density of the carbon nano tube conductive fiber is 0.5-1.0 g/cm3。
Furthermore, the diameter of the carbon nano tube conductive fiber is 0.1-200 mu m.
Furthermore, the thickness of the metal layer is 0.2-5 μm.
Further, the weaving structure layer is formed by weaving 16-48 carbon nanotube conductive fibers.
Further, the thickness of weaving the structural layer is 0.1 ~ 300 um.
Furthermore, the thickness of the carbon nanotube film is 5 um-100 um.
Further, the density of the carbon nano tube film is 0.5-1.0 g/cm3。
Furthermore, the thickness of the shielding layer is 5 um-200 um.
Further, the first conductor comprises a silver-plated copper conductor.
Furthermore, the insulating layer comprises a microporous polytetrafluoroethylene film wrapped on the outer side of the first conductor.
Further, the thickness of the microporous polytetrafluoroethylene film is 0.086mm or 0.027 mm.
Further, the thickness of the insulating layer is 0.086mm or 0.027 mm.
Further, the outer jacket comprises a layer of fluoroplastic.
Further, the thickness of the fluorine-containing plastic layer is 0.25 +/-0.01 mm.
Furthermore, the unit mass length of the soft high-temperature coaxial cable is 20g/m, and the bending resistance is more than 10000 times.
Compared with the prior art, the utility model has the advantages that:
1) the embodiment of the utility model provides a gentle high temperature coaxial cable, has effectively alleviateed coaxial cable's weight and has improved the flexibility of cable to coaxial cable's performance has greatly been improved;
2) compared with the traditional copper-silver cable, the unit weight of the light and high-temperature coaxial cable provided by the embodiment of the utility model is reduced by 20-40%, which not only meets the use requirement of the coaxial cable, but also meets the requirements of light weight and bending resistance;
3) the embodiment of the utility model provides a pair of gentle high temperature coaxial cable to the outer conductor that many carbon nanotube conductive fiber woven the formation can enough guarantee coaxial cable's transmission performance, satisfies again that density is little, the quality is light, flexible requirement such as big.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a soft high temperature coaxial cable according to an exemplary embodiment of the present invention.
Detailed Description
In view of the deficiencies in the prior art, the inventor of the present invention has made extensive studies and practices to provide the technical solution of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.
The embodiment of the utility model provides a gentle high temperature coaxial cable, it includes first conductor and sets gradually insulating layer, second conductor, shielding layer and the oversheath outside first conductor from inside to outside along the radial direction of first conductor; the second conductor comprises a woven structure layer formed by weaving a plurality of carbon nanotube conductive fibers, and the shielding layer comprises a carbon nanotube film wrapped on the outer side of the second conductor.
Specifically, referring to fig. 1, a soft high-temperature coaxial cable includes an inner conductor (i.e., the first conductor, the same below) 1, and an insulating layer 2, an outer conductor (i.e., the second conductor, the same below) 3, a shielding layer 4 and an outer sheath 5, which are sequentially stacked on the outer side of the inner conductor 1 from inside to outside along a radial direction of the inner conductor 1.
Specifically, the inner conductor 1 may be a silver-plated copper conductor; this insulating layer 2 can be micropore polytetrafluoroethylene film, and micropore polytetrafluoroethylene film directly wraps the package in the inner conductor 1 outside, and wherein this micropore polytetrafluoroethylene film's thickness is 0.086mm or 0.027mm, and insulating layer 2's thickness is 0.086mm or 0.027 mm.
Specifically, the outer conductor 3 may be a woven structure layer formed by weaving a plurality of carbon nanotube conductive fibers, and the woven structure layer is directly coated on the outer side of the insulating layer 2; the carbon nanotube conductive fiber is formed by compounding carbon nanotube fibers and metal, for example, the carbon nanotube conductive fiber comprises carbon nanotube fibers and a metal layer formed on the surface of the carbon nanotube fibers, and the metal layer may comprise any one or more than two metals of Cu, Ni, Au, Ag, Fe, and Co.
Specifically, the thickness of the woven structure layer is 0.1-300 um, the diameter of the carbon nano tube conductive fiber is 0.1-200 μm, and the thickness of the metal layer is 0.2-1 μm; and the density of the carbon nano tube conductive fiber is 0.5 to 1.0g/cm3。
Specifically, the outer conductor 3 may be formed by weaving 16 to 48 carbon nanotube conductive fibers.
Specifically, the shielding layer 4 may be a low-density carbon nanotube film, and the low-density carbon nanotube film is directly wrapped around the outer side of the outer conductor 3; wherein the thickness of the low-density carbon nanotube film is 3-200 μm, and the density of the low-density carbon nanotube film is 0.5-1.0 g/cm3And the thickness of the shielding layer 4 is 5 um-200 um.
In particular, the outer sheath 5 may be a layer of fluoroplastic formed by direct extrusion of fluoroplastic on the outside of the shielding layer, the layer of fluoroplastic having a thickness of 0.25 ± 0.01 mm.
In some more specific embodiments, a soft high temperature coaxial cable according to an exemplary embodiment of the present invention can be obtained by:
silver-plated copper wires are used as inner conductors 1, polytetrafluoroethylene tapes (or polytetrafluoroethylene films) are wrapped on the inner conductors 1 to serve as insulating layers 2, and then high-temperature cable cores are obtained;
weaving a plurality of carbon nano tube conductive fibers under the tension of 0.3-0.5N to form an outer conductor 3 coated on the insulating layer 2;
wrapping the carbon nanotube film on the outer side of the outer conductor 3 under the tension of 0.3-1N to form a shielding layer 4;
the outer sheath 5 is formed by extruding the fluorine-containing plastic outside the shielding layer 4 in an extrusion molding mode, and then the soft high-temperature coaxial cable is formed.
Specifically, the density of the carbon nanotube conductive fiber is 1/4 of the density of the silver-plated copper, the density of the carbon nanotube film is less than 15% of the density of the original silver-plated copper strip, and the whole of the soft high-temperature coaxial cable is reduced by 30% compared with the coaxial cable adopting the silver-plated copper as the outer conductor under the same specification condition (such as the same volume).
Specifically, the unit mass of the coaxial cable using the conductors such as copper and silver as the outer conductor and the shielding layer in the prior art is about 52.53g/m, and the unit mass of the soft high-temperature coaxial cable provided by the utility model is 31.51% of the unit mass of the coaxial cable using the conductors such as copper and silver as the outer conductor and the shielding layer, and the total mass reduction amount is up to 40%.
Specifically, the unit mass length of the soft high-temperature coaxial cable is 20g/m, while the weight of the cable in the prior art is 33 g/m.
The embodiment of the utility model provides a gentle high temperature coaxial cable, has effectively alleviateed coaxial cable's weight and has improved the flexibility of cable to coaxial cable's performance has greatly been improved; compared with the traditional copper-silver cable, the unit weight of the light high-temperature coaxial cable provided by the embodiment of the utility model is reduced by 20-40%, which not only meets the use requirement of the coaxial cable, but also meets the requirements of light weight and bending resistance; additionally, the embodiment of the utility model provides a pair of gentle high temperature coaxial cable to the outer conductor (being the second conductor) that many carbon nanotube conductive fiber woven the formation can enough guarantee coaxial cable's transmission performance, satisfies again that density is little, the quality is light, the flexibility is big etc. requires.
It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and therefore, the protection scope of the present invention should not be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (15)
1. A soft high-temperature coaxial cable is characterized by comprising a first conductor, and an insulating layer, a second conductor, a shielding layer and an outer sheath which are sequentially arranged on the outer side of the first conductor from inside to outside along the radial direction of the first conductor; the second conductor comprises a woven structure layer formed by weaving a plurality of carbon nanotube conductive fibers, and the shielding layer comprises a carbon nanotube film wrapped on the outer side of the second conductor.
2. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the second conductor has a braiding density of 90% or more.
3. The lightly-softened high-temperature coaxial cable of claim 2, wherein: the carbon nanotube conductive fiber comprises a carbon nanotube fiber and a metal layer formed on the surface of the carbon nanotube fiber.
4. The lightly-softened high-temperature coaxial cable of claim 3, wherein: the density of the carbon nano tube conductive fiber is 0.5-1.0 g/cm3。
5. The lightly-softened high-temperature coaxial cable of claim 3, wherein: the diameter of the carbon nanotube conductive fiber is 0.1-200 μm.
6. The lightly-softened high-temperature coaxial cable of claim 3, wherein: the thickness of the metal layer is 0.2-5 μm.
7. The lightly-softened high-temperature coaxial cable of claim 3, wherein: the woven structure layer is formed by weaving 16-48 carbon nanotube conductive fibers.
8. The lightly-softened high-temperature coaxial cable of claim 3, wherein: the thickness of weaving the structural layer is 0.1 ~ 300 um.
9. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the thickness of the carbon nanotube film is 3-200 μm.
10. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the density of the carbon nano tube film is 0.5-1.0 g/cm3。
11. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the thickness of the shielding layer is 5 um-200 um.
12. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the first conductor comprises a silver-plated copper conductor.
13. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the insulating layer includes the micropore polytetrafluoroethylene film around the package in the first conductor outside, the thickness of micropore polytetrafluoroethylene film is 0.086mm or 0.027 mm.
14. The lightly-softened high-temperature coaxial cable of claim 13, wherein: the thickness of the insulating layer is 0.086mm or 0.027 mm.
15. The lightly-softened high-temperature coaxial cable of claim 1, wherein: the unit mass of the light softening high-temperature coaxial cable is 20g/m, and the bending resistance is more than 10000 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020727672.3U CN212032754U (en) | 2020-05-07 | 2020-05-07 | Light flexible high-temperature coaxial cable |
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| CN202020727672.3U CN212032754U (en) | 2020-05-07 | 2020-05-07 | Light flexible high-temperature coaxial cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380175A (en) * | 2019-07-16 | 2019-10-25 | 芜湖航天特种电缆厂股份有限公司 | Anti-interference steady phase radio-frequency cable and preparation method thereof |
| CN112820455A (en) * | 2021-04-19 | 2021-05-18 | 江苏中天科技股份有限公司 | Low-noise flexible cable and manufacturing method thereof |
-
2020
- 2020-05-07 CN CN202020727672.3U patent/CN212032754U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380175A (en) * | 2019-07-16 | 2019-10-25 | 芜湖航天特种电缆厂股份有限公司 | Anti-interference steady phase radio-frequency cable and preparation method thereof |
| CN112820455A (en) * | 2021-04-19 | 2021-05-18 | 江苏中天科技股份有限公司 | Low-noise flexible cable and manufacturing method thereof |
| CN112820455B (en) * | 2021-04-19 | 2021-07-16 | 江苏中天科技股份有限公司 | Low-noise flexible cable and manufacturing method thereof |
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