CN201773626U - High and low temperature-resistant composite insulated flexible symmetrical cable - Google Patents
High and low temperature-resistant composite insulated flexible symmetrical cable Download PDFInfo
- Publication number
- CN201773626U CN201773626U CN2010205101646U CN201020510164U CN201773626U CN 201773626 U CN201773626 U CN 201773626U CN 2010205101646 U CN2010205101646 U CN 2010205101646U CN 201020510164 U CN201020510164 U CN 201020510164U CN 201773626 U CN201773626 U CN 201773626U
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- China
- Prior art keywords
- low temperature
- film tape
- polyimide film
- copper wire
- cable
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- Expired - Lifetime
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Abstract
The utility model relates to a high and low temperature-resistant composite insulated flexible symmetrical cable, which comprises insulated conductors consisting of a polytetrafluoroethylene insulating layer outside an inner conductor, and also comprises filling cores molded by a microporous polytetrafluoroethylene film tape, a polyimide film tape isolated layer, a silver plated copper wire braided layer and a PFA sheath, wherein two insulated conductors and two filling cores molded by the microporous polytetrafluoroethylene film tape are stranded, and then are coated with the polyimide film tape isolated layer, the silver plated copper wire braided layer and the PFA sheath in turn. The utility model has the characteristics that: the cable has small DC resistance, excellent electrical property at high frequency, light weight, small dielectric constant, low attenuation, high flexibility and excellent radiation resistance, and ensures the low attenuation performance of a lead at high frequency; and the flexibility is improved by adopting a multi-strand braiding form.
Description
Technical field
The utility model relates to a kind of cable, and particularly a kind of signal transmission that is applicable to device interiors such as aircraft, spacecraft has two-way output characteristic, the high-low temperature resistant that real-time and reliability are high, the soft symmetrical cable of compound inslation.
Background technology
Common symmetrical cable generally adopts single material of planting as insulation, and decay is big down for high frequency, be unfavorable for using, and chemical resistance is poor, and environment for use is restricted.
Summary of the invention
In view of the deficiency that prior art exists, the utility model provides a kind of have high-low temperature resistant, little, in light weight, the anti-irradiation of decay, the high-low temperature resistant of characteristics such as volume is little, chemical resistance good, softness, the soft symmetrical cable of compound inslation.
The utility model for achieving the above object, the scheme of being taked is: a kind of high-low temperature resistant, the soft symmetrical cable of compound inslation, it is characterized in that: the conductor that included is provided with the insulated wire cores that one deck teflon insulation layer constitutes outward, the filled core that also comprises the moulding of expanded microporous polytetra fluoroethylene-EPTEE film band, polyimide film band separator, silver-coated copper wire braid and PFA sheath, the filled core of two described insulated wire cores and the moulding of two described expanded microporous polytetra fluoroethylene-EPTEE film bands is stranded, is provided with one deck polyimide film band separator outside it successively, the silver-coated copper wire braid, the PFA sheath.
Characteristics of the present utility model are: inner wire is the silver-plated copper conductor of electrical property excellence, and D.C. resistance is little, electrical property excellence under the high frequency, than ordinary copper conductor, tin-coated copper conductor easily weld, resistance is little, temperature resistant grade is high.Insulating barrier is a polytetrafluoroethylene, adopts the thin layer expressing technique, has both guaranteed excellent electrical insulation properties, has alleviated weight again.Filled core adopts wrapped the forming of expanded microporous polytetra fluoroethylene-EPTEE film band that a kind of dielectric constant is lower, density is little, the interpolation of filled core makes that the construction of cable is stable and can satisfy the requirement of electric properties such as its impedance, electric capacity and decay, has that dielectric constant is little, decay is low, in light weight, flexibility is good.Separator adopts polyimide film band, radiation-resistant property excellence.Formed compound inslation jointly by teflon insulation layer, expanded microporous polytetra fluoroethylene-EPTEE filled core and polyimide film band separator, not only guaranteed the lead high-low temperature resistant, external diameter is little, density is low, anti-irradiation, flexibility are good, the matching Design of impedance, electric capacity and system, and guaranteed the low fade performance of lead under high frequency.Braid adopts can resistant to elevated temperatures silver-coated copper wire, has not only reduced the influence of external interference under the high frequency, and has adopted the multiply type of weave to increase flexibility.Sheath is PFA (tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer), and it has high-low temperature resistant, good flame resistance, chemical-resistance excellence, adopts the thin layer expressing technique, has both guaranteed excellent electrical insulation properties, has alleviated weight again.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, high-low temperature resistant, the soft symmetrical cable of compound inslation, the conductor 1-1 that included is provided with the insulated wire cores 1 that one deck teflon insulation layer 1-2 constitutes outward, also comprises filled core 2, polyimide film band separator 3, silver-coated copper wire braid 4 and the PFA sheath 5 of expanded microporous polytetra fluoroethylene-EPTEE film band moulding.
Inner wire 1-1 adopts the silver-plated copper conductor, and insulating barrier 1-2 adopts the polytetrafluoroethylene thin layer to extrude form, and filled core 2 adopts the wrapped moulding of expanded microporous polytetra fluoroethylene-EPTEE film band.Inner wire 1-1 and insulating barrier 1-2 constitute insulated wire cores 1, two filled cores 2 that thoroughly do away with edge cores 1 and the moulding of two described expanded microporous polytetra fluoroethylene-EPTEE film bands after stranded, at it outside wrapped successively one deck polyimide film band separator 3, weave one deck silver-coated copper wire braid 4, extrude one deck PFA (tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer) sheath 5 at last.
Claims (1)
1. high-low temperature resistant, the soft symmetrical cable of compound inslation, it is characterized in that: the outer insulated wire cores (1) that is provided with one deck teflon insulation layer (1-2) formation of the conductor that included (1-1), the filled core (2) that also comprises the moulding of expanded microporous polytetra fluoroethylene-EPTEE film band, polyimide film band separator (3), silver-coated copper wire braid (4) and PFA sheath (5), the filled core (2) of two described insulated wire cores (1) and the moulding of two described expanded microporous polytetra fluoroethylene-EPTEE film bands is stranded, is provided with one deck polyimide film band separator (3) outside it successively, silver-coated copper wire braid (4) and PFA sheath (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205101646U CN201773626U (en) | 2010-08-30 | 2010-08-30 | High and low temperature-resistant composite insulated flexible symmetrical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205101646U CN201773626U (en) | 2010-08-30 | 2010-08-30 | High and low temperature-resistant composite insulated flexible symmetrical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773626U true CN201773626U (en) | 2011-03-23 |
Family
ID=43753467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205101646U Expired - Lifetime CN201773626U (en) | 2010-08-30 | 2010-08-30 | High and low temperature-resistant composite insulated flexible symmetrical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434236A (en) * | 2013-08-30 | 2013-12-11 | 广州凯恒特种电线电缆有限公司 | Polyimide/polytetrafluoroethylene composite membrane for insulation of electric wire and cable and preparation method thereof |
| CN104681907B (en) * | 2015-02-09 | 2017-11-21 | 中国电子科技集团公司第二十三研究所 | Overall teflon insulation electroplate outer conductor radio-frequency cable and processing method |
| CN110415871A (en) * | 2019-09-02 | 2019-11-05 | 中天科技装备电缆有限公司 | A kind of high-low temperature resistant radiation resistance multicore watertight cable and processing technology |
-
2010
- 2010-08-30 CN CN2010205101646U patent/CN201773626U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434236A (en) * | 2013-08-30 | 2013-12-11 | 广州凯恒特种电线电缆有限公司 | Polyimide/polytetrafluoroethylene composite membrane for insulation of electric wire and cable and preparation method thereof |
| CN103434236B (en) * | 2013-08-30 | 2015-06-17 | 广州凯恒特种电线电缆有限公司 | Polyimide/polytetrafluoroethylene composite membrane for insulation of electric wire and cable and preparation method thereof |
| CN104681907B (en) * | 2015-02-09 | 2017-11-21 | 中国电子科技集团公司第二十三研究所 | Overall teflon insulation electroplate outer conductor radio-frequency cable and processing method |
| CN110415871A (en) * | 2019-09-02 | 2019-11-05 | 中天科技装备电缆有限公司 | A kind of high-low temperature resistant radiation resistance multicore watertight cable and processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |
|
| CX01 | Expiry of patent term |