CN214671905U - 500 ℃ resistant soft light cable - Google Patents
500 ℃ resistant soft light cable Download PDFInfo
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- CN214671905U CN214671905U CN202121020614.8U CN202121020614U CN214671905U CN 214671905 U CN214671905 U CN 214671905U CN 202121020614 U CN202121020614 U CN 202121020614U CN 214671905 U CN214671905 U CN 214671905U
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Abstract
The utility model relates to a 500 ℃ resistant soft light cable, which comprises a conductor, an insulating layer, a temperature resistant isolating layer, a shielding layer and a sheath layer; an insulating layer, a temperature-resistant isolating layer, a shielding layer and a sheath layer are sequentially arranged outside the conductor; the conductor is formed by stranded nickel-plated copper wires; the insulating layer is a polytetrafluoroethylene and polyimide composite film; the temperature-resistant isolation layer is a calcined mica tape thermal insulation layer; the shielding layer is a polyimide aluminum composite belt; the sheath layer is composed of an inner layer which is a polytetrafluoroethylene polyimide composite film and an outer layer which is a polytetrafluoroethylene raw material belt combination. The utility model has the advantages that: the high-temperature-resistant and flexible cable has the characteristics of high temperature resistance, light weight, flexibility and the like, and is convenient to install and operate.
Description
Technical Field
The utility model relates to a resistant soft light-duty cable of 500 ℃ is the cable that is arranged in the engine system of certain communication equipment signal transmission.
Background
The common temperature-resistant cable conductor structure is in a multi-strand stranded silver-plated copper wire mode, the insulating layer structure is in a wrapped polyimide film mode, the shielding layer is in a woven multi-strand silver-plated copper wire mode, and the sheath layer is in a wrapped raw material belt mode. The common high-temperature-resistant cable has the temperature resistance grade of 300 ℃, large outer diameter, heavy weight and high hardness, and is inconvenient for installation and operation and system work such as an engine.
Disclosure of Invention
In view of the situation that prior art exists, the utility model discloses a reach the requirement that connects between the instrument and signal transmission uses in the engine high temperature system, provide a soft light-duty cable of resistant 500 ℃, this cable has characteristics such as high temperature resistant, light in weight, gentle, easy to assemble the operation.
The utility model discloses a realize above-mentioned purpose, the technical scheme who takes is: a500 ℃ resistant flexible light cable comprises a conductor, an insulating layer, a temperature resistant isolating layer, a shielding layer and a sheath layer;
an insulating layer, a temperature-resistant isolating layer, a shielding layer and a sheath layer are sequentially arranged outside the conductor;
the conductor is formed by stranded nickel-plated copper wires; the insulating layer is a polytetrafluoroethylene and polyimide composite film; the temperature-resistant isolation layer is a calcined mica tape thermal insulation layer; the shielding layer is a polyimide aluminum composite belt; the sheath layer is composed of an inner layer which is a polytetrafluoroethylene polyimide composite film and an outer layer which is a polytetrafluoroethylene raw material belt combination.
The utility model has the advantages that: the common temperature-resistant cable conductor material is a multi-strand stranded silver-plated copper wire, and the material is normally used at a temperature of between 60 ℃ below zero and 200 ℃; the utility model discloses cable conductor adopts stranded nickel-plated copper line, and this material normal use under-80 ℃ -300 ℃ has excellent electric conductivity and weldability, the resistivity of effectual reduction conductor with ordinary temperature resistant cable.
The insulating layer adopts polytetrafluoroethylene and polyimide composite film to wrap the form, and this kind of insulating layer material is made by polytetrafluoroethylene and polyimide two kinds of materials, and polytetrafluoroethylene's degree of crystallinity is high, and the molecule orientation tightly arranges, and the void fraction is little, and voltage resistance is fabulous simultaneously has had polyimide's characteristics such as high temperature resistant, that the bending is good, light in weight, tensile strength height concurrently. The material still has the characteristics of good mechanical property, volatilization resistance, no water absorption, acid and alkali resistance, corrosion resistance of other solvents and the like within the temperature range of-190-500 ℃.
The temperature-resistant isolation layer adopts a wrapped and calcined mica tape form, so that the temperature-resistant grade can be improved. The material has good electrical property after being subjected to a fire resistance test of 950 ℃ for 180min, and has the characteristics of good adhesion, excellent softness, light weight, high temperature resistance level and the like.
The shielding layer adopts a wrapping polyimide aluminum composite tape form, the covering rate of the wrapping polyimide aluminum composite tape reaches 100%, and the covering rate of the common woven silver-plated copper wire is more than 85%, so that the polyimide aluminum composite tape has higher shielding efficiency, and can more effectively prevent the external signal interference on the cable. The polyimide aluminum composite belt is formed by compounding a polyimide belt and an aluminum belt, and the material has the characteristics of tensile strength, flexibility, light weight and the like of the polyimide belt and also has the shielding performance of the aluminum belt. The density of the raw material of the polyimide aluminum composite belt is 1.4-1.6 (g/cm)2) And the density of the woven silver-plated copper wire is 8.9 (g/cm)2) Compared with the silver-plated copper wire woven in the same length, the light and soft cable resistant to 500 ℃ is lighter in weight.
The sheath layer adopts the inlayer to be around packing polytetrafluoroethylene and polyimide composite film, and the skin is around packing polytetrafluoroethylene raw material area combination form. Because the insulativity of the polytetrafluoroethylene raw material tape is not influenced by the environment and the frequency, the dielectric loss is small, and the breakdown voltage is high. The electric performance is good at 190-500 ℃, and the cable has atmospheric aging resistance, irradiation resistance and lower permeability, the surface and the performance of the cable can be kept unchanged after the cable is exposed in the atmosphere for a long time, and the combined sheath layer also has the characteristics of light weight and softness.
In short, the cable has the characteristics of light weight, flexibility, high temperature resistance and the like, and can be used in narrow spaces, high-temperature places, occasions such as engines and the like and occasions with weight control requirements.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a 500 ℃ resistant flexible light cable comprises a conductor 1, an insulating layer 2, a temperature resistant isolation layer 3, a shielding layer 4 and a sheath layer 5;
the conductor 1 is formed by stranded nickel-plated copper wires;
the insulating layer 2 is a film formed by compounding polytetrafluoroethylene and a polyimide material;
the temperature-resistant isolation layer 3 is a calcined mica tape thermal insulation layer;
the shielding layer 4 is a polyimide aluminum composite belt;
the sheath layer 5 is composed of an inner layer which is a polytetrafluoroethylene polyimide composite film and an outer layer which is a polytetrafluoroethylene raw material belt combination.
The conductor 1 is wrapped with the insulating layer 2, the insulating layer 2 is wrapped with the temperature-resistant isolating layer 3, the temperature-resistant isolating layer 3 is wrapped with the shielding layer 4, and the shielding layer 4 is wrapped with the sheath layer 5.
Claims (1)
1. A500 ℃ resistant soft light cable is characterized in that: comprises a conductor (1), an insulating layer (2), a temperature-resistant isolating layer (3), a shielding layer (4) and a sheath layer (5);
an insulating layer (2), a temperature-resistant isolating layer (3), a shielding layer (4) and a sheath layer (5) are sequentially arranged outside the conductor (1);
the conductor (1) is formed by stranded nickel-plated copper wires; the insulating layer (2) is a polytetrafluoroethylene and polyimide composite film; the temperature-resistant isolation layer (3) is a calcined mica tape thermal insulation layer; the shielding layer (4) is a polyimide aluminum composite belt; the sheath layer (5) is composed of an inner layer which is a polytetrafluoroethylene polyimide composite film and an outer layer which is a polytetrafluoroethylene raw material belt combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121020614.8U CN214671905U (en) | 2021-05-13 | 2021-05-13 | 500 ℃ resistant soft light cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121020614.8U CN214671905U (en) | 2021-05-13 | 2021-05-13 | 500 ℃ resistant soft light cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214671905U true CN214671905U (en) | 2021-11-09 |
Family
ID=78487956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121020614.8U Active CN214671905U (en) | 2021-05-13 | 2021-05-13 | 500 ℃ resistant soft light cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214671905U (en) |
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2021
- 2021-05-13 CN CN202121020614.8U patent/CN214671905U/en active Active
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