DE3050943C2 - Ribbon cable - Google Patents

Ribbon cable

Info

Publication number
DE3050943C2
DE3050943C2 DE19803050943 DE3050943A DE3050943C2 DE 3050943 C2 DE3050943 C2 DE 3050943C2 DE 19803050943 DE19803050943 DE 19803050943 DE 3050943 A DE3050943 A DE 3050943A DE 3050943 C2 DE3050943 C2 DE 3050943C2
Authority
DE
Germany
Prior art keywords
insulating layer
conductors
polytetrafluoroethylene
ribbon cable
porous expanded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE19803050943
Other languages
German (de)
Inventor
Bernd 8022 Grünwald Sieberling
Ralph 8835 Pleinfeld Tillmanns
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WL Gore and Associates Inc
Original Assignee
WL Gore and Associates Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WL Gore and Associates Inc filed Critical WL Gore and Associates Inc
Priority to DE19803050943 priority Critical patent/DE3050943C2/en
Priority claimed from DE3020622A external-priority patent/DE3020622C2/en
Application granted granted Critical
Publication of DE3050943C2 publication Critical patent/DE3050943C2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4403—Optical cables with ribbon structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0233—Cables with a predominant gas dielectric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0838—Parallel wires, sandwiched between two insulating layers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Description

Hierzu 1 Biatt ZeichnungenIn addition 1 Biatt drawings

Die Erfindung betrifft ein Bandkabel mit mindestens einer Isolierschicht aus vollverdichtetem Polytetrafluoräthylen. The invention relates to a ribbon cable with at least one insulating layer made of fully compressed polytetrafluoroethylene.

Aus der US-PS 32 19 752 ist ein Duplex-Kabel mit einer Zweischichtisolierung bekannt, welche eine innere, KupferleiKT unmittelbar umgebende Isolierschicht aus geschlossenzelligem Polyäthylenschaumstoff und eine äußere, die innere Isolierschicht umgebende und die Leiter untereinander verbindende Isolierschicht aus Polyäthylen hoher Dichte aufweist Da bereits eine Temperaturbelastung von 1500C die Zweischichtisolierung zerstören würde, kommt eine Beschädigung der reinen Kupferieiter durch Wärmebelastung hier nicht in Betracht. From US-PS 32 19 752 a duplex cable with a two-layer insulation is known, which has an inner, KupferleiKT immediately surrounding insulating layer made of closed-cell polyethylene foam and an outer, the inner insulating layer surrounding and interconnecting the conductors insulating layer made of high density polyethylene a thermal stress would destroy 150 0 C, the two-layer insulation, damage to the pure Kupferieiter not come by thermal stress into consideration here.

Bei bekannten Bandkabeln dieser Art müssen wegen der hohen Sintertemperatur von über 327°C kostspielige versilberte Kupferleiter verwendet werden, um Beschädigungen dieser Leiter während des Sintervorgangs zu vermeiden.In known ribbon cables of this type, because of the high sintering temperature of over 327 ° C, expensive Silver plated copper conductors are used to prevent damage to these conductors during the sintering process to avoid.

Die Aufgabe der vorliegtnd£n Erfindung besteht darin, ein Bandkabel der in Frage stehenden Art mit kostengünstigen Leitern zu schaffen.The object of the present invention is to a ribbon cable of the type in question with inexpensive To create ladders.

Diese Aufgabe wird erfindungsgemäß durch ein Bandkabel gemäß Patentanspruch gelöst Durch die gute Wärmeisolation der inneren Isolierschicht aus porösem expandiertem Polytetrafluoräthylen mit über 50Vol.-°/o Luftanteil können beim erfindungsgemäßen Bandkabel kostengünstige reine oder verzinnte Kupferleiter verwendet werden. Die nur relativ kurze Beaufschlagung des erfindungsgemäßen Bandkabels mit der Sintertemperatur des porösen expandierten Polytetrafluoräthylen von über ca. 327° C, was außerdem die Fertigungszeit des Bandkabels vorteilhaft verkürzt, hat insoweit keinerlei schädliche Folgen für die Leiter.This object is achieved according to the invention by a ribbon cable according to patent claim Thermal insulation of the inner insulating layer made of porous expanded polytetrafluoroethylene with over In the case of the ribbon cable according to the invention, inexpensive pure or tinned copper conductors can be used for 50% by volume of air be used. The only relatively short application of the ribbon cable according to the invention with the Sintering temperature of the porous expanded polytetrafluoroethylene of about 327 ° C, which also reduces the production time of the ribbon cable is advantageously shortened, has no harmful consequences for the conductor.

Gas poröse expandierte Polytetrafluoräthylen besteht aus einer offenen Struktur aus Knoten und Fibril- so Ien, die nach einem Verfahren gemäß DE-AS 21 23 316 hergestellt wird.Gas porous expanded polytetrafluoroethylene consists of an open structure of knots and fibrils Ien, which is produced by a method according to DE-AS 21 23 316.

Das erfindungsgemäße Bandkabel kann in vorteilhafter Weise in einem einstufigen kontinuierlichen Verfahren dadurch hergestellt werden, daß die Leiter zwischen zwei inneren Folien aus porösem expandiertem Polytetrafluoräthylen und zwischen zwei äußeren Folien aus vollverdichtetem Polytetrafluoräthylen durch Zusammenführen dieser Elemente in einem Walzenspalt unter Pressen eingebettet werden und das Kabel anschließend gesintert wird. Hierbei wird durch das Pressen im Walzenspalt und das anschließende Sintern ein einheitlicher Verbindungssteg zwischen den einzelnen Leitern aus voll verdichtetem Polytetrafluoräthylen hergestellt. Nähere Einzelheiten dieser Herstellungstechnik von Bandkabeln sind z. B. in der DE-PS 16 40 163 beschrieben.The ribbon cable according to the invention can advantageously be used in a one-step continuous process be made by placing the conductors between two inner sheets of porous expanded polytetrafluoroethylene and between two outer foils made of fully compressed polytetrafluoroethylene by bringing them together these elements are embedded in a nip with pressing and then the cable is sintered. The pressing in the nip and the subsequent sintering result in a more uniform The connecting bar between the individual conductors is made of fully compressed polytetrafluoroethylene. Closer Details of this manufacturing technique of ribbon cables are e.g. B. in DE-PS 16 40 163 described.

In der einzigen Figur ist schematisch der Querschnitt des erfindungsgemäßen Bandkabels gezeigt. Das Band-In the single figure, the cross section is schematic of the ribbon cable according to the invention shown. The ribbon-

Claims (1)

Patentanspruch:Claim: Bandkabel mit mindestens einer Isolierschicht aus vollverdichtetem Polytetrafluorethylen, gekennzeichnet durch eine weitere innere, die Leiter unmittelbar umgebende Isolierschicht (3) aus porösem expandiertem Polytetrafluorethylen mit über 50 Vol.-°/o Luftanteii und durch reine oder verzinnte Kupferleiter (2).Ribbon cable with at least one insulating layer made of fully compressed polytetrafluoroethylene, characterized by a further inner layer, the conductor immediately surrounding insulating layer (3) made of porous expanded polytetrafluoroethylene with over 50 vol.% Air and through pure or tinned copper conductors (2). kabel 1 weist Leiter 2 auf, die z. B. einen Rasterabstand untereinander von 1,27 ± 0,05 mm aufweisen. Die Leiter 2 sind reine oder verzinnte Kupferieiter. Die Leiter 2 sind jeweils von einer inneren weichen Isolierschicht 3 aus porösem expandiertem Polytetrafluoräthylen umgeben. Diese innere Isolierschicht Z wird von einer äußeren relativ harten Isolierschicht 4 aus vollverdichtetem Polytetrafluoräthylen umgeben, welche Verbindungsstege 5 zwischen den Leitern 2 bildet.cable 1 has conductor 2, the z. B. have a grid spacing from one another of 1.27 ± 0.05 mm. The conductors 2 are pure or tinned copper conductors. The conductors 2 are each surrounded by an inner soft insulating layer 3 made of porous expanded polytetrafluoroethylene. This inner insulating layer Z is surrounded by an outer, relatively hard insulating layer 4 made of fully compressed polytetrafluoroethylene, which forms connecting webs 5 between the conductors 2.
DE19803050943 1980-05-30 1980-05-30 Ribbon cable Expired DE3050943C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803050943 DE3050943C2 (en) 1980-05-30 1980-05-30 Ribbon cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3020622A DE3020622C2 (en) 1980-05-30 1980-05-30 Ribbon cable and process for its manufacture
DE19803050943 DE3050943C2 (en) 1980-05-30 1980-05-30 Ribbon cable

Publications (1)

Publication Number Publication Date
DE3050943C2 true DE3050943C2 (en) 1986-07-24

Family

ID=25785772

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803050943 Expired DE3050943C2 (en) 1980-05-30 1980-05-30 Ribbon cable

Country Status (1)

Country Link
DE (1) DE3050943C2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219752A (en) * 1965-02-17 1965-11-23 Columbia Wire And Supply Compa High frequency electrical lead-in cable
DE2123316B2 (en) * 1970-05-21 1975-07-31 W.L. Gore And Associates Inc., Newark, Del. (V.St.A.) Porous material made from a tetrafluoroethylene polymer and method for its preparation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219752A (en) * 1965-02-17 1965-11-23 Columbia Wire And Supply Compa High frequency electrical lead-in cable
DE2123316B2 (en) * 1970-05-21 1975-07-31 W.L. Gore And Associates Inc., Newark, Del. (V.St.A.) Porous material made from a tetrafluoroethylene polymer and method for its preparation

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