EP0422626B1 - Coaxial cable - Google Patents

Coaxial cable Download PDF

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Publication number
EP0422626B1
EP0422626B1 EP90119452A EP90119452A EP0422626B1 EP 0422626 B1 EP0422626 B1 EP 0422626B1 EP 90119452 A EP90119452 A EP 90119452A EP 90119452 A EP90119452 A EP 90119452A EP 0422626 B1 EP0422626 B1 EP 0422626B1
Authority
EP
European Patent Office
Prior art keywords
coaxial cable
conductor
outer conductor
inner conductor
dielectric
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 - Lifetime
Application number
EP90119452A
Other languages
German (de)
French (fr)
Other versions
EP0422626A3 (en
EP0422626A2 (en
Inventor
Paul Gregor
Peter Zamzow
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.)
Kabel Rheydt AG
Original Assignee
Kabel Rheydt AG
AEG Kabel AG
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 Kabel Rheydt AG, AEG Kabel AG filed Critical Kabel Rheydt AG
Publication of EP0422626A2 publication Critical patent/EP0422626A2/en
Publication of EP0422626A3 publication Critical patent/EP0422626A3/en
Application granted granted Critical
Publication of EP0422626B1 publication Critical patent/EP0422626B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1869—Construction of the layers on the outer side of the outer conductor
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths
    • H01B7/188—Inter-layer adherence promoting means

Definitions

  • a coaxial cable As is well known in cable technology, there are coaxial cables that are used when higher-frequency signals are to be transmitted.
  • a coaxial cable according to DE-OS-2.537.873 has an inner conductor and an outer conductor. There is a dielectric between the inner conductor and the outer conductor.
  • the inner conductor is, for example, a tube or a solid wire.
  • the outer conductor is, for example, a tube which is arranged coaxially with the inner conductor.
  • the outer conductor and inner conductor can be made of copper or aluminum, for example.
  • the dielectric can, for example, fill the entire space between the inner conductor and the outer conductor. In this case, the dielectric has the shape of a tubular body.
  • disk-shaped bodies as dielectric which are located on the inner conductor and are arranged at a distance from one another.
  • plastics such. B. polyethylene.
  • the outer conductor is surrounded by an outer jacket or protective jacket.
  • the invention is based on the knowledge that, in the case of known cables, when they are bent, ridges or corrugations arise which have to be smoothed out again when fittings are to be attached.
  • the invention has for its object to provide a coaxial cable which does not have this disadvantage and which avoids the formation of beads. This object is achieved by a coaxial cable with the features of claim 1.
  • the invention is preferably applied to a coaxial cable which has a grid belt to increase the tensile strength, which consists, for example, of glass or glass fiber bundles.
  • FIG. 1 shows a preliminary product of a coaxial cable, which consists of an inner conductor 1, a dielectric 2 and an outer conductor 3.
  • an adhesive layer 4 is applied to the outer conductor 3 of the arrangement of FIG. 1 and then an outer jacket 5 is extruded onto the arrangement of FIG. 2 according to FIG.
  • the adhesive layer 4 ensures that the outer conductor 3 is glued to the outer jacket 5 in the finished coaxial cable of FIG. 3.
  • FIG. 4 shows an exemplary embodiment of the invention, in which a tubular body 7 is produced from an adhesive tape 6 and is then applied to the arrangement in FIG. 1 in accordance with FIG.
  • a grid-shaped, tubular body 8 which is produced from a grid belt, is applied to the tubular body 7 in the same way as the tubular body 7.
  • the tubular body 8, which consists, for example, of glass bundles, increases the Tensile strength of the coaxial cable.
  • FIG. 7 shows the finished coaxial cable with the outer jacket 5, which is extruded onto the arrangement of FIG. 6, for example.
  • the figure's coaxial cable 7 the essential condition is met that the outer jacket 5 passes through the grid body 8 on the adhesive layer.
  • Figures 8 and 9 show a further embodiment of the invention, in which no separate adhesive layer or adhesive body is used, but in which 8 adhesive material is applied to the inner surface of the lattice body provided, so that on a separate adhesive layer on the outer conductor or on a separate adhesive body can be dispensed with in this case.

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  • Communication Cables (AREA)

Abstract

In a coaxial cable having an inner conductor, an outer conductor, a dielectric between the inner conductor and the outer conductor, and having an outer jacket, which surrounds the outer conductor, it is provided that the outer jacket is bonded to the outer conductor. <IMAGE>

Description

In der Kabeltechnik gibt es bekanntlich Koaxialkabel, die eingesetzt werden, wenn höherfrequente Signale übertragen werden sollen. Ein Koaxialkabel gemäß der DE-OS-2.537.873 weist bekanntlich einen Innenleiter und einen Außenleiter auf. Zwischen dem Innenleiter und dem Außenleiter befindet sich ein Dielektrikum. Der Innenleiter ist beispielsweise ein Rohr oder ein massiver Draht. Der Außenleiter ist beispielsweise ein Rohr, welches koaxial zum Innenleiter angeordnet ist. Außenleiter und Innenleiter können beispielsweise aus Kupfer oder Aluminium bestehen. Das Dielektrikum kann beispielsweise den gesamten Raum zwischen dem Innenleiter und dem Außenleiter ausfüllen. In diesem Fall hat das Dielektrikum die Gestalt eines rohrförmigen Körpers. Es besteht auch die Möglichkeit, als Dielektrikum scheibenförmige Körper zu verwenden, die sich auf dem Innenleiter befinden und im Abstand voneinander angeordnet sind. Als Material für das Dielektrikum eignen sich beispielsweise Kunststoffe wie z. B. Polyäthylen. Der Außenleiter ist von einem Außenmantel bzw. Schutzmantel umgeben.As is well known in cable technology, there are coaxial cables that are used when higher-frequency signals are to be transmitted. As is known, a coaxial cable according to DE-OS-2.537.873 has an inner conductor and an outer conductor. There is a dielectric between the inner conductor and the outer conductor. The inner conductor is, for example, a tube or a solid wire. The outer conductor is, for example, a tube which is arranged coaxially with the inner conductor. The outer conductor and inner conductor can be made of copper or aluminum, for example. The dielectric can, for example, fill the entire space between the inner conductor and the outer conductor. In this case, the dielectric has the shape of a tubular body. It is also possible to use disk-shaped bodies as dielectric which are located on the inner conductor and are arranged at a distance from one another. As a material for the dielectric, for example, plastics such. B. polyethylene. The outer conductor is surrounded by an outer jacket or protective jacket.

Der Erfindung liegt die Erkenntnis zugrunde, daß bei bekannten Kabeln, wenn sie gebogen werden, Wülste bzw. Wellungen entstehen, die wieder geglättet werden müssen, wenn Garnituren angebracht werden sollen. Der Erfindung liegt die Aufgabe zugrunde, ein Koaxialkabel anzugeben, welches diesen Nachteil nicht aufweist und welches die Bildung von Wülsten vermeidet. Diese Aufgabe wird durch ein Koaxialkabel mit den Merkmalen des Anspruchs 1 gelöst.The invention is based on the knowledge that, in the case of known cables, when they are bent, ridges or corrugations arise which have to be smoothed out again when fittings are to be attached. The invention has for its object to provide a coaxial cable which does not have this disadvantage and which avoids the formation of beads. This object is achieved by a coaxial cable with the features of claim 1.

Die Erfindung findet vorzugsweise bei einem Koaxialkabel Anwendung, welches zur Erhöhung der Zugfestigkeit ein Gitterband aufweist, welches beispielsweise aus Glas oder Glasfaserbündeln besteht.The invention is preferably applied to a coaxial cable which has a grid belt to increase the tensile strength, which consists, for example, of glass or glass fiber bundles.

Die Figur 1 zeigt ein Vorprodukt eines Koaxialkabels, welches aus einem Innenleiter 1, einem Dielektrikum 2 und aus einem Außenleiter 3 besteht. Gemäß der Figur 2 wird auf den Außenleiter 3 der Anordnung der Figur 1 eine Klebeschicht 4 aufgebracht und anschließend gemäß der Figur 3 auf die Anordnung der Figur 2 ein Außenmantel 5 aufextrudiert. Durch die Klebeschicht 4 ist gewährleistet, daß beim fertigen Koaxialkabel der Figur 3 der Außenleiter 3 mit dem Außenmantel 5 verklebt ist.FIG. 1 shows a preliminary product of a coaxial cable, which consists of an inner conductor 1, a dielectric 2 and an outer conductor 3. According to FIG. 2, an adhesive layer 4 is applied to the outer conductor 3 of the arrangement of FIG. 1 and then an outer jacket 5 is extruded onto the arrangement of FIG. 2 according to FIG. The adhesive layer 4 ensures that the outer conductor 3 is glued to the outer jacket 5 in the finished coaxial cable of FIG. 3.

Die Figur 4 zeigt ein Ausführungsbeispiel der Erfindung, bei dem aus einem Klebeband 6 ein rohrförmiger Körper 7 hergestellt wird, der dann gemäß der Figur 5 auf die Anordnung der Figur 1 aufgebracht wird. Auf den rohrförmigen Körper 7 wird gemäß der Figur 6 ein gitterförmiger, rohrförmiger Körper 8 aufgebracht, der aus einem Gitterband hergestellt wird, und zwar in der gleichen Weise wie der rohrförmige Körper 7. Der rohrförmige Körper 8, der beispielsweise aus Glasbündeln besteht, erhöht die Zugfestigkeit des Koaxialkabels.FIG. 4 shows an exemplary embodiment of the invention, in which a tubular body 7 is produced from an adhesive tape 6 and is then applied to the arrangement in FIG. 1 in accordance with FIG. According to FIG. 6, a grid-shaped, tubular body 8, which is produced from a grid belt, is applied to the tubular body 7 in the same way as the tubular body 7. The tubular body 8, which consists, for example, of glass bundles, increases the Tensile strength of the coaxial cable.

Die Figur 7 zeigt das fertige Koaxialkabel mit dem Außenmantel 5, der beispielsweise auf die Anordnung der Figur 6 aufextrudiert wird. Beim Koaxialkabel der Figur 7 ist die wesentliche Bedingung erfüllt, daß der Außenmantel 5 durch den Gitterkörper 8 auf die Klebeschicht durchgreift.FIG. 7 shows the finished coaxial cable with the outer jacket 5, which is extruded onto the arrangement of FIG. 6, for example. The figure's coaxial cable 7 the essential condition is met that the outer jacket 5 passes through the grid body 8 on the adhesive layer.

Die Figuren 8 und 9 zeigen ein weiteres Ausführungsbeispiel der Erfindung, bei dem keine gesonderte Klebeschicht oder Klebekörper verwendet wird, sondern bei dem auf die Innenfläche des vorgesehenen Gitterkörpers 8 Klebematerial aufgebracht wird, so daß auf eine gesonderte Klebeschicht auf dem Außenleiter oder auf einem gesonderten Klebekörper in diesem Fall verzichtet werden kann. Das fertige Koaxialkabel, bei dessen Herstellung gemäß der Figur 8 ein mit Klebematerial versehener Gitterkörper 8 verwendet wird, zeigt die Figur 9.Figures 8 and 9 show a further embodiment of the invention, in which no separate adhesive layer or adhesive body is used, but in which 8 adhesive material is applied to the inner surface of the lattice body provided, so that on a separate adhesive layer on the outer conductor or on a separate adhesive body can be dispensed with in this case. The finished coaxial cable, in the manufacture of which, according to FIG. 8, a grid body 8 provided with adhesive material is used, is shown in FIG. 9.

Claims (3)

  1. Coaxial cable having an inner conductor (1), a tubular outer conductor (3), a dielectric (2) between the inner conductor (1) and the outer conductor (3) and having an outer sheath (5), which surrounds the outer conductor (3) and is adhesively bonded thereto, characterized in that a perforated strip is arranged as a tubular body (8) between the outer conductor (3) and the outer sheath (5), for the purpose of increasing the tensile strength of the cable, the adhesive bonding between the outer conductor (3) and the outer sheath (5) being carried out through the meshes of the body (8).
  2. Coaxial cable according to Claim 1, characterized in that the adhesive bond comprises a synthetic copolymer adhesive material.
  3. Coaxial cable according to Claim 1 or 2, characterized in that adhesive material is applied to the perforated strip.
EP90119452A 1989-10-13 1990-10-11 Coaxial cable Expired - Lifetime EP0422626B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3934213A DE3934213A1 (en) 1989-10-13 1989-10-13 COAXIAL CABLE
DE3934213 1989-10-13

Publications (3)

Publication Number Publication Date
EP0422626A2 EP0422626A2 (en) 1991-04-17
EP0422626A3 EP0422626A3 (en) 1992-07-29
EP0422626B1 true EP0422626B1 (en) 1997-01-02

Family

ID=6391408

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Application Number Title Priority Date Filing Date
EP90119452A Expired - Lifetime EP0422626B1 (en) 1989-10-13 1990-10-11 Coaxial cable

Country Status (5)

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EP (1) EP0422626B1 (en)
AT (1) ATE147189T1 (en)
DE (2) DE3934213A1 (en)
DK (1) DK0422626T3 (en)
ES (1) ES2095230T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9310993U1 (en) * 1993-07-22 1994-11-17 W.L. Gore & Associates Gmbh, 85640 Putzbrunn Broadband radio frequency-compatible electrical coaxial cable
ES2257207B1 (en) * 2004-12-16 2008-01-01 Nordix, S.A. DOUBLE SCREEN COAXIAL CABLE.
CN109036667B (en) * 2018-08-03 2020-05-01 阳谷鑫辉电缆有限公司 Energy-concerving and environment-protective resistant environment fracture polyethylene cable structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1993574U (en) * 1968-04-29 1968-09-12 Erich Spielmann Fa HIGH PERFORMANCE COAXIAL ANTENNA CABLE, IN PARTICULAR FOR TELEVISION PURPOSES.
CH573651A5 (en) * 1973-12-18 1976-03-15 Schweizerische Isolawerke
DE2525149A1 (en) * 1975-06-06 1976-12-30 Felten & Guilleaume Carlswerk REMOTE CABLE WITH CONSTRUCTION ELEMENTS MADE OF COMPOSITE FILM
DE2529520A1 (en) * 1975-06-30 1977-01-27 Siemens Ag Coaxial electric cable with sealing compsn. - with sufficient water repellency without affecting transmission properties
DE2537873A1 (en) * 1975-08-26 1977-03-03 Felten & Guilleaume Carlswerk Coaxial HF cable with longitudinal water barrier - includes adhesion promoting layer of copolymer
DE3234730A1 (en) * 1982-09-18 1984-03-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Communications cable
GB2163285B (en) * 1984-08-16 1988-06-29 Volex Group Plc Cable

Also Published As

Publication number Publication date
DE3934213A1 (en) 1991-04-18
EP0422626A3 (en) 1992-07-29
ATE147189T1 (en) 1997-01-15
DE59010622D1 (en) 1997-02-13
DK0422626T3 (en) 1997-06-16
ES2095230T3 (en) 1997-02-16
EP0422626A2 (en) 1991-04-17

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