CN212874085U - Ultrahigh-speed high-low temperature resistant data bus cable for aviation - Google Patents
Ultrahigh-speed high-low temperature resistant data bus cable for aviation Download PDFInfo
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- CN212874085U CN212874085U CN202020943754.1U CN202020943754U CN212874085U CN 212874085 U CN212874085 U CN 212874085U CN 202020943754 U CN202020943754 U CN 202020943754U CN 212874085 U CN212874085 U CN 212874085U
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Abstract
The utility model discloses an aviation is with resistant high low temperature data bus cable of hypervelocity, including conductor, insulating layer, filling layer, chromatographic layer, shielding layer and outer jacket, the insulating layer cladding the conductor forms insulated wire, the filling layer cladding the insulated wire, the chromatographic layer cladding the filling layer reaches the insulating layer, the shielding layer cladding the chromatographic layer, the outer jacket cladding the shielding layer, two the insulated wire symmetry sets up, the filling layer symmetry sets up on the symmetry line of insulated wire, is located two insulated wire both sides; wherein the insulating layer is made of a low-density raw material tape. The utility model discloses a component part all uses material resistant high low temperature, high elasticity, and it is low to insulate to adopt relative dielectric constant, dielectric loss angle tangent value, and transmission rate is high temperature resistant 200 ℃ physical foaming fluoroplastic insulating layer material, has guaranteed transmission rate.
Description
Technical Field
The utility model belongs to the technical field of the cable and specifically relates to a resistant high low temperature data bus cable of hypervelocity for aviation is related to.
Background
At present, the domestic aviation field is developed better and better, the demand for cables inside airplanes is increased gradually, the quality requirement for the cables is high, the existing 120-omega aviation wrapped insulation bus is a microporous raw material tape wrapped insulation fluoroplastic extrusion sheath, and due to the fact that the viscosity of the fluoroplastic is high after melting, a nucleating agent is not easy to add, and the like, the fluoroplastic is difficult to extrude, the relative dielectric constant of the fluoroplastic of the raw material tape is 1.60-1.70, and the transmission rate is low.
The insulating layer made of fluoroplastics enables the transmission rate of the cable to be low, and attenuation and capacitance are large, so that the product is difficult to meet the future use requirement along with the continuous improvement of the aviation communication technology.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide an aviation is with resistant high low temperature data bus cable of hypervelocity, solve the technical problem that fluoroplastics leads to the transmission rate of cable low among the prior art.
In order to achieve the technical purpose, the technical scheme of the utility model provides an aviation is with resistant high low temperature data bus cable of hypervelocity, including conductor, insulating layer, filling layer, chromatographic layer, shielding layer and outer jacket, the insulating layer cladding the conductor forms insulated wire, the chromatographic layer cladding the filling layer reaches the insulating layer, the shielding layer cladding the chromatographic layer, the outer jacket cladding the shielding layer, two the insulated wire symmetry sets up, the filling layer symmetry sets up on the symmetrical line of insulated wire, is located two the insulated wire both sides; wherein the insulating layer is made of a low-density raw material tape.
Preferably, the conductor is formed by twisting silver-plated copper alloy.
Preferably, the filling layer is formed by winding a low-density raw material belt.
Preferably, the shielding layer is formed by weaving silver-plated copper wires.
Preferably, the outer protective layer is made of fluoroplastic materials.
Preferably, the color separation layer is made of a polyamide aluminum plastic composite tape.
Compared with the prior art, the beneficial effects of the utility model include: the aviation ultra-high-speed high-low temperature resistant data bus cable comprises a conductor, an insulating layer, a filling layer, a color separation layer, a shielding layer and an outer protective layer, wherein the conductor is coated by an insulator to play an insulating role and prevent conductor current from flowing out of the cable; the filling layer plays a role in filling in the cable, so that the toughness, the braiding performance and the compression strength of the cable are improved; the color separation layer increases the high and low temperature resistance of the cable, the shielding layer increases the anti-interference capability of the cable, and the outer protective layer increases the waterproof and wear-resistant properties of the cable; the insulating layer is made of low-density raw material tape, the micropore can reduce the relative dielectric constant of the material, so that the signal attenuation is small during transmission, meanwhile, the weight of the product is greatly reduced, the mechanical property of the cable is improved, the high and low temperature resistance is realized, the electrical property is excellent, the attenuation and the crosstalk between wire pairs are reduced, and the cable is suitable for high-speed communication transmission in special environments such as an airborne environment or a transport station.
Drawings
Fig. 1 is a schematic cross-sectional view of the ultra-high-speed high-low temperature resistant data bus cable for aviation of 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.
The utility model provides an aviation is with resistant high low temperature data bus cable 100 of hypervelocity, including conductor 11, insulating layer 12, filling layer 2, chromatographic layer 3, shielding layer 4 and outer jacket 5, insulating layer 12 cladding conductor 11 forms insulated wire 1, chromatographic layer 3 cladding filling layer 2 reaches insulating layer 12, shielding layer 4 cladding chromatographic layer 3, outer jacket 5 cladding shielding layer 4, two insulated wire 1 line symmetry sets up, filling layer 2 symmetry sets up on insulated wire 1's symmetry line, is located two insulated wire 1 both sides; wherein the insulating layer 12 is made of a low density raw material tape.
The aviation ultra-high-speed high-low temperature resistant data bus cable 100 comprises a conductor 11, an insulating layer 12, a filling layer 2, a color separation layer 3, a shielding layer 4 and an outer protective layer 5, wherein the insulating layer 12 coats the conductor 11 to play an insulating role and prevent current of the conductor 11 from flowing out of the cable; the filling layer 2 plays a role in filling in the cable, so that the toughness, the braiding performance and the compression strength of the cable are improved; the color separation layer 3 improves the high and low temperature resistance of the cable, the shielding layer 4 improves the anti-interference capability of the cable, and the outer protective layer 5 improves the waterproof and wear-resistant properties of the cable; the insulating layer 12 is made of a low-density raw material tape, and the micropores can reduce the relative dielectric constant of the material, so that the attenuation of signals is small during transmission, meanwhile, the weight of the cable is greatly reduced, the mechanical performance of the cable is improved, the high-temperature and low-temperature resistance is realized, the electrical performance is excellent, the attenuation and crosstalk between wire pairs are reduced, and the cable is suitable for high-speed communication transmission in special environments such as an airborne environment or a transport station.
Specifically, the conductor 11 is formed by twisting silver-plated copper alloy, the silver-plated copper alloy material conforms to the regulation of GJB1640-1993, the chemical stability of silver is high, the silver can resist corrosion of alkali and some organic acids, the silver-plated copper alloy has excellent flame resistance and aging resistance, the tensile strength of the silver-plated copper alloy is more than 2 times that of a common silver-plated copper wire, the electric conductivity is only reduced by about 10%, and the cable has very good electric energy transmission characteristics.
Wherein, filling layer 2 adopts the coiling of low density thread seal area to form, can ensure the rounding of cable structure, has reduced the weight of cable, has improved the mechanical properties of cable, under the circumstances such as crooked, receive pressure, guarantees the stability of the transmission performance of cable.
Specifically, the shielding layer 4 is woven by silver-plated copper wires, the silver-plated copper wires are excellent in oxidation resistance, the weaving density is over 90%, the woven shielding structure can resist electromagnetic induction, poor grounding and power line conduction interference, the inductance is reduced, and the over-large induced electromotive force is prevented; the shielding layer 4 of the silver-plated copper wire not only plays a role in inhibiting electromagnetic waves from being emitted to the outside, but also can be used as a channel of short-circuit current and can play a role in protecting a neutral wire core.
Specifically, the outer protective layer 5 is made of fluoroplastic materials, when the data bus cable is used on an aircraft, part of the cable can work on the cabin control device, and the outer protective layer 5 is a layer of the cable which is in direct contact with the outside, so that the requirements on flame retardance and high temperature resistance of the outer protective layer 5 of the data bus cable are high, the molecular structure of the material is compact, and the material can work in a high-temperature environment for a long time and can be kept from being immersed by water.
The color separation layer 3 of the utility model is made of a polyamide aluminum plastic composite belt; the polyimide aluminum plastic has high-temperature-resistant strength, effectively protects the inner conductor, ensures the conductivity of the conductor and ensures the transmission rate of the conductor.
In conclusion, all the components of the ultrahigh-speed high-low temperature resistant HDRS485 data bus cable 100 for aviation are made of high-low temperature resistant and high-elasticity materials, the insulating materials are made of high-temperature resistant 200 ℃ physical foaming fluoroplastic insulating layer materials with low relative dielectric constant, low dielectric loss tangent value and high transmission rate, the weight is light, the electric transmission rate is guaranteed, the energy loss during electric transmission is saved, the energy saving is greatly increased, and the cable is suitable for being used in the aviation environment of an airborne station or a transport station.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. The ultrahigh-speed high-low temperature resistant data bus cable for aviation is characterized by comprising a conductor, an insulating layer, a filling layer, a color separation layer, a shielding layer and an outer protective layer, wherein the insulating layer coats the conductor to form an insulated wire, the color separation layer coats the filling layer and the insulating layer, the shielding layer coats the color separation layer, the outer protective layer coats the shielding layer, the two insulated wires are symmetrically arranged, and the filling layer is symmetrically arranged on a symmetrical line of the insulated wires and positioned on two sides of the two insulated wires; wherein the insulating layer is made of a low-density raw material tape.
2. The ultra high speed, high temperature and low temperature tolerant aviation data bus cable of claim 1, wherein the conductor is stranded from a silver-plated copper alloy.
3. The ultra-high-speed high-low temperature-resistant data bus cable for aviation according to claim 1, wherein the filling layer is formed by winding a low-density raw material tape.
4. The ultra-high-speed high-low temperature-resistant data bus cable for aviation according to claim 1, wherein the shielding layer is woven by silver-plated copper wires.
5. The ultra-high-speed, high-low-temperature-resistant data bus cable for aviation according to claim 1, wherein the outer sheath is made of a fluoroplastic material.
6. The ultra-high-speed high-low temperature-resistant data bus cable for aviation according to claim 1, wherein the dichroic layer is made of a polyamide aluminum plastic composite tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020943754.1U CN212874085U (en) | 2020-05-28 | 2020-05-28 | Ultrahigh-speed high-low temperature resistant data bus cable for aviation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020943754.1U CN212874085U (en) | 2020-05-28 | 2020-05-28 | Ultrahigh-speed high-low temperature resistant data bus cable for aviation |
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| CN212874085U true CN212874085U (en) | 2021-04-02 |
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| CN202020943754.1U Active CN212874085U (en) | 2020-05-28 | 2020-05-28 | Ultrahigh-speed high-low temperature resistant data bus cable for aviation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420348A (en) * | 2022-01-21 | 2022-04-29 | 湖北航天电缆有限公司 | Aviation ultrahigh frequency low-loss high-low temperature resistant high-speed data bus and preparation method thereof |
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2020
- 2020-05-28 CN CN202020943754.1U patent/CN212874085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420348A (en) * | 2022-01-21 | 2022-04-29 | 湖北航天电缆有限公司 | Aviation ultrahigh frequency low-loss high-low temperature resistant high-speed data bus and preparation method thereof |
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