CN104036868A - Communication cable - Google Patents
Communication cable Download PDFInfo
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- CN104036868A CN104036868A CN201310073484.8A CN201310073484A CN104036868A CN 104036868 A CN104036868 A CN 104036868A CN 201310073484 A CN201310073484 A CN 201310073484A CN 104036868 A CN104036868 A CN 104036868A
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- silver
- cable
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- emulsion
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Abstract
Disclosed in the invention is a communication cable. Silver-plated copper conductors are used as conductors; the outsides of the conductors are extruded by tetrafluoroethylene insulating layers; and semi-conductive shielding layers are arranged outside the tetrafluoroethylene insulating layers to form insulated wire cores. After the pair insulated wire cores are twisted; and tetrafluoroethylene microporous membranes are arranged in a filling mode, thereby forming a cable core. Besides, the cable core is wrapped with a polytetrafluoroethylene semi-conductive wrapping belt; the outside of the semi-conductive wrapping belt is wound with a silver-plated flat copper belt; and a sheath layer is arranged outside the silver-plated flat copper belt. According to the invention, other electrical performances and mechanical performance index requirements are met. Moreover, the communication cable has advantages of high and low temperature, low noise, light weight, and small external diameter.
Description
Technical field
The present invention relates to a kind of telecommunication cable, belong to electric wire field.
Background technology
Develop rapidly along with various Aero-Space and various basic industries, the application of cable is more and more wider, service condition is more and more harsher, simultaneously more and more to the requirement of performance index, the invention of this kind of cable is mainly that serviceability temperature is in-60～260 degrees Celsius of environment for using under adverse circumstances, lighter weight is being pursued, less external diameter in cable weight aspect simultaneously.In electric signal transmission process, under the extraneous factor effects such as bending, vibration, impact, variations in temperature, the pulse signal that cable itself produces is less than the low noise requirement of 5mV.
Summary of the invention
Patent of the present invention provides a kind of telecommunication cable, when meeting other electrical property and mechanical performance index requirement, can also meet cable high-low temperature resistant, and low noise is lightweight, the requirement that external diameter is little.
The solution of the present invention is as follows: a kind of telecommunication cable, and its conductor adopts silver-plated copper conductor, and conductor extrudes four fluorine ethylene insulating barriers outward, and four fluorine ethylene insulating barriers arrange semiconductive shielding layer outward and form insulated wire cores; After a pair of insulated wire cores pair twist, fill polytetrafluoroethylene microporous barrier and form cable core; The outer wrapped polytetrafluoroethylene semiconductive band of cable core is wound around silver-plated flat copper band outside semiconductive band, at silver-plated flat copper band, restrictive coating is set outward.
Described semi-conductive screen layer material is mixed by polytetrafluoroethyl-ne dilute emulsion and graphite emulsion.
Between described graphite emulsion and polytetrafluoro emulsion, proportioning is between 1:1～1:1.5.
The thickness of described silver-plated flat copper band is 0.05mm.
Described restrictive coating consists of two layers, polyimide composite film and tetrafluoroethene layer.
Beneficial effect of the present invention:
1, high temperature resistant, external diameter is little, lightweight.Cable all adopts exotic material, and the long-term serviceability temperature of cable, at-55-260 ℃, has improved electric environment for use temperature range.Cable shield adopts the form shielding of wrapped silver-plated flat copper band, this kind of shielding form benefit is lightweight, shield effectiveness can reach 100%, external diameter is than more than the little 0.2mm of braid shielded, the 2*20AWG cable model of take is example, finished cable external diameter can accomplish below 5.0mm, and this is almost to meet the outside diameter of cable limit minimum value of cable electrical performance indexes and mechanical performance index.Meanwhile, the inner expanded microporous polytetra fluoroethylene-EPTEE film that adopts of cable is filled, and when reducing cable attenuation, can greatly alleviate cable weight, and the 2*20AWG cable model of take is example, and cable weight can be accomplished below 47g/m.Above indices is very high for being applied on aerospace communications cable earning rate.
2, cable low noise properties is good: owing to adopting and applying graphite semi-conductive layer at cable insulation, wrapped semi-conductive screen band before shielding, cable is through test, using frequency range 1KHz in 100KHz frequency range, under the highest serviceability temperature, the pulse signal peak value that cable produces is less than 2.7mV, and the noise performance index that can reach cable is completely not more than the requirement of 5mV.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
A telecommunication cable, its conductor 1 adopts silver-plated copper conductor, and outer four fluorine ethylene insulating barrier 2, the four fluorine ethylene insulating barriers outer 2 that extrude of conductor 1 arrange semiconductive shielding layer 3 formation insulated wire cores; After a pair of insulated wire cores pair twist, fill polytetrafluoroethylene microporous barrier 4 and form cable core; The outer wrapped polytetrafluoroethylene semiconductive band 5 of cable core, at the silver-plated flat copper band 6 of the outer winding of semiconductive band 5, at the outer restrictive coating that arranges of silver-plated flat copper band 6.
Described semiconductive shielding layer 3 materials are mixed by polytetrafluoroethyl-ne dilute emulsion and graphite emulsion.
Between described graphite emulsion and polytetrafluoro emulsion, proportioning is between 1:1～1:1.5.
Described restrictive coating consists of 8 two layers, polyimide composite film 7 and tetrafluoroethene layer.
In concrete enforcement, with strand winder, restraint out in the same way silver-plated copper conductor, at silver-plated copper conductor skin, with extruder, extrude teflon insulation layer, at teflon insulation layer film outward ptfe emulsion and graphite mixed emulsion, wherein graphite and ptfe emulsion proportioning at 1:1 between 1:1.5 and stir, after the emulsion of filming, cross mould by sintering furnace sintering, sintering temperature is controlled between 140-170 degree Celsius, sintering furnace is no less than 6 joints, every joint length is not less than 1 meter, after sintering, form semiconductive shielding layer, two insulating core pair twists, and fill polytetrafluoroethylene microporous barrier stranding.Wrapped polytetrafluoroethylene semiconductive band after stranding, at the outer thick silver-plated flat copper band of 0.05mm that is wound around of polytetrafluoroethylene semiconductive band, the silver-plated flat copper band rate of putting up is not less than 10%, outer wrapped polyimide composite film and raw material band respectively, after high temperature sintering, form restrictive coating.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and revise; when its function producing does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (5)
1. a telecommunication cable, is characterized in that conductor adopts silver-plated copper conductor, and conductor extrudes four fluorine ethylene insulating barriers outward, and four fluorine ethylene insulating barriers arrange semiconductive shielding layer outward and form insulated wire cores; After a pair of insulated wire cores pair twist, fill polytetrafluoroethylene microporous barrier and form cable core; The outer wrapped polytetrafluoroethylene semiconductive band of cable core is wound around silver-plated flat copper band outside semiconductive band, at silver-plated flat copper band, restrictive coating is set outward.
2. a kind of telecommunication cable according to claim 1, is characterized in that described semi-conductive screen layer material is mixed by polytetrafluoroethyl-ne dilute emulsion and graphite emulsion.
3. a kind of telecommunication cable according to claim 2, is characterized in that between described graphite emulsion and polytetrafluoro emulsion, proportioning is between 1:1～1:1.5.
4. a kind of telecommunication cable according to claim 1, is characterized in that the thickness of described silver-plated flat copper band is 0.05mm.
5. a kind of telecommunication cable according to claim 1, is characterized in that described restrictive coating consists of two layers, polyimide composite film and tetrafluoroethene layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073484.8A CN104036868B (en) | 2013-03-07 | 2013-03-07 | A kind of communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073484.8A CN104036868B (en) | 2013-03-07 | 2013-03-07 | A kind of communication cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104036868A true CN104036868A (en) | 2014-09-10 |
| CN104036868B CN104036868B (en) | 2017-09-26 |
Family
ID=51467607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310073484.8A Active CN104036868B (en) | 2013-03-07 | 2013-03-07 | A kind of communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104036868B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900327A (en) * | 2015-06-27 | 2015-09-09 | 深州市远征氟塑料有限公司 | Integrated dry-insulated tubular busbar and manufacturing method thereof |
| CN110379549A (en) * | 2019-06-18 | 2019-10-25 | 芜湖航天特种电缆厂股份有限公司 | Aerospace light-duty low noise data cable and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477011A (en) * | 1994-03-03 | 1995-12-19 | W. L. Gore & Associates, Inc. | Low noise signal transmission cable |
| EP1076343A1 (en) * | 1999-08-13 | 2001-02-14 | W.L. GORE & ASSOCIATES GmbH | Cable shielding |
| CN201465649U (en) * | 2009-07-10 | 2010-05-12 | 天津六○九电缆有限公司 | Refractory low-attenuation balanced twin-twisted signal transmission line |
| CN201594413U (en) * | 2009-09-27 | 2010-09-29 | 天津安讯达科技有限公司 | LVDS balanced twisted-pair conductor |
| CN202210431U (en) * | 2011-09-21 | 2012-05-02 | 辽宁金环电缆有限公司 | Signal transmission cable characterized by low noise and high thermostability |
-
2013
- 2013-03-07 CN CN201310073484.8A patent/CN104036868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477011A (en) * | 1994-03-03 | 1995-12-19 | W. L. Gore & Associates, Inc. | Low noise signal transmission cable |
| EP1076343A1 (en) * | 1999-08-13 | 2001-02-14 | W.L. GORE & ASSOCIATES GmbH | Cable shielding |
| CN201465649U (en) * | 2009-07-10 | 2010-05-12 | 天津六○九电缆有限公司 | Refractory low-attenuation balanced twin-twisted signal transmission line |
| CN201594413U (en) * | 2009-09-27 | 2010-09-29 | 天津安讯达科技有限公司 | LVDS balanced twisted-pair conductor |
| CN202210431U (en) * | 2011-09-21 | 2012-05-02 | 辽宁金环电缆有限公司 | Signal transmission cable characterized by low noise and high thermostability |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900327A (en) * | 2015-06-27 | 2015-09-09 | 深州市远征氟塑料有限公司 | Integrated dry-insulated tubular busbar and manufacturing method thereof |
| CN104900327B (en) * | 2015-06-27 | 2016-09-28 | 深州市远征氟塑料有限公司 | The manufacture method of integral type dry type insulating tube type busbar |
| CN110379549A (en) * | 2019-06-18 | 2019-10-25 | 芜湖航天特种电缆厂股份有限公司 | Aerospace light-duty low noise data cable and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104036868B (en) | 2017-09-26 |
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