EP1225598B1 - Flexible electrical line - Google Patents

Flexible electrical line Download PDF

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Publication number
EP1225598B1
EP1225598B1 EP01403136A EP01403136A EP1225598B1 EP 1225598 B1 EP1225598 B1 EP 1225598B1 EP 01403136 A EP01403136 A EP 01403136A EP 01403136 A EP01403136 A EP 01403136A EP 1225598 B1 EP1225598 B1 EP 1225598B1
Authority
EP
European Patent Office
Prior art keywords
line according
sheath
armor
braiding
interstices
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
EP01403136A
Other languages
German (de)
French (fr)
Other versions
EP1225598A2 (en
EP1225598A3 (en
Inventor
Ferdinand Grögl
Thomas Mann
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Publication of EP1225598A2 publication Critical patent/EP1225598A2/en
Publication of EP1225598A3 publication Critical patent/EP1225598A3/en
Application granted granted Critical
Publication of EP1225598B1 publication Critical patent/EP1225598B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/221—Longitudinally placed metal wires or tapes
    • H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/302—Polyurethanes or polythiourethanes; Polyurea or polythiourea
    • 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
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting 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
    • H01B7/17—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
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/228—Metal braid

Definitions

  • the invention relates to a flexible electrical line according to claim 1.
  • Such flexible electrical lines are used for example as elevator lines or as so-called drag chain line.
  • the cables are constantly moved, especially in drag chains.
  • the cables are either shielded or unshielded, whereby the shielded version is used if special requirements for electromagnetic compatibility are made.
  • a practiced solution for extreme demands consists in a flat cable construction with laterally arranged steel cables. Such a conduit requires an increased space requirement.
  • Another solution consists in a conventional round construction of the line, wherein the jacket consists of a so-called steel / polyurethane composite construction.
  • the disadvantages of this line consist in a poor connection of the support element to the drag chain and in a difficult assembly.
  • From the DE-C-42 18 707 is a flexible cable for power supply of cutting machines known, which consists of a stranding of three arranged around a central element energy core. The stranding between the energy wires are filled with jute tears. The stranded bandage designed in this way is enclosed by an inner jacket. The inner casing is surrounded by a braided steel braid and an outer jacket made of polychloroprene.
  • the cable for use in operating rooms which has a reinforcement intended to protect the sheath against attack by sharp surgical equipment.
  • the cable consists of a cable core of electrically insulated conductors and a shield surrounding the conductors made of a metallic wire mesh.
  • the cable core is surrounded by an inner sheath, an applied on the inner sheath reinforcement of metal wires and an outer sheath.
  • the outer jacket penetrates the spaces between the metal wires and is connected to the inner jacket.
  • the coverage of the reinforcement is up to 50%.
  • the present invention has set itself the task of providing a flexible electrical cable for extreme loads, for travel distances of over 30 meters with speeds up to 500 m / min and accelerations or
  • each wire bundle is stranded, each consisting of three wires 8, 9 and 10.
  • Each wire consists of a conductor 11, z. B. a stranded conductor and insulation 12 z. B. from a two-layer insulation, as described in the earlier German patent application 100 36 610.4 dated 27. 07. 2000 is described.
  • thermoplastic polyurethane which fills the gusset between the wire bundles.
  • central element 1- in some cases, however, in addition to this - can be provided in the gussets not shown tensile and compression stable elements.
  • the inner jacket 13 is surrounded by a winding 14, which preferably consists of a nonwoven ribbon.
  • a Arm michsgeflecht 15 which is applied with an optical coverage of 30 - 80%, so that the material of the outer shell 16 can penetrate the Arm michsgeflecht 15 and penetrate to the winding 14.
  • Outer jacket 16 and reinforcement mesh 15 form a unit that can be easily lifted off the inner jacket 13 and the winding 14 in the assembly of the cable ends.
  • the reinforcing braiding 15 forming elements 17 are preferably flat elements that are extremely flexible, yet tensile and stably stable.
  • a flat element 17 consists of four juxtaposed elongated objects 18, which are jointly surrounded by a plastic sheath 19, preferably made of polyamide.
  • the objects 18 are either folded steel wires or flat polyamide (Kevlar), glass or carbon fiber fibers or fiber bundles running in a matrix of polyamide.
  • the outer jacket 16 is made with particular advantage of thermoplastic polyurethane by extrusion.

Abstract

A flexible electrical cable is formed of a cable core made of a plurality of insulated conductors (2, 3, 4, 5, 6, 7) that are stranded together, an inner sheath (13) that fills up the interstices between strands, a wrapping (14) resting on the inner sheath (13), armor braiding (15) with a 30%-80% optical coverage, and a plastic outer sheath (16) penetrating the interstices between the braiding (15).

Description

Die Erfindung betrifft eine flexible elektrische Leitung gemäß Patent anspruch 1.The invention relates to a flexible electrical line according to claim 1.

Derartige flexible elektrische Leitungen werden beispielsweise als Aufzugleitungen oder als sogenannte Schleppkettenleitung verwendet. Beim Betrieb entsprechender Anlagen werden die Leitungen speziell in Schleppketten dauernd bewegt. Die Leitungen sind entweder geschirmt oder ungeschirmt, wobei auf die geschirmte Version zurückgegriffen wird, wenn besondere Anforderungen an die elektromagnetische Verträglichkeit gestellt werden.Such flexible electrical lines are used for example as elevator lines or as so-called drag chain line. When operating corresponding systems, the cables are constantly moved, especially in drag chains. The cables are either shielded or unshielded, whereby the shielded version is used if special requirements for electromagnetic compatibility are made.

Die gesamte Energie- und Informationsversorgung von Industrieanlagen und Werkzeugmaschinen erfolgt bislang über Schleppleitungen, die einzeln verlegt in sogenannten Schleppketten eingesetzt werden.The entire energy and information supply of industrial plants and machine tools has hitherto been provided by trailing cables, which are used individually laid in so-called drag chains.

In der Vergangenheit betrug die maximale Kettenlänge 6 Meter bei Bewegungsgeschwindigkeiten von 180 m/min und Beschleunigungen von in der Regel 2m/sec2 . Eine in Extremfällen bereits praktizierte Technik mit stark verbesserten Schleppkettenkonstruktionen ermöglicht Geschwindigkeiten von bis zu 500 m/min bei Bewegungslängen von bis zu 50 m sowie Beschleunigungen von 8 m/sec2 und mehr.In the past, the maximum chain length was 6 meters at moving speeds of 180 m / min and accelerations of usually 2m / sec 2 . A technique already practiced in extreme cases with greatly improved drag chain constructions enables speeds of up to 500 m / min for movement lengths of up to 50 m and accelerations of 8 m / sec 2 and more.

Eine praktizierte Lösung für Extremanforderungen besteht in einer flachen Leitungsbauform mit seitlich angeordneten Stahlseilen. Eine derartige Leitung erfordert einen erhöhten Platzbedarf.A practiced solution for extreme demands consists in a flat cable construction with laterally arranged steel cables. Such a conduit requires an increased space requirement.

Eine andere Lösung besteht in einem üblichen runden Aufbau der Leitung, wobei der Mantel aus einer sogenannten Stahl-/Polyurethanverbundkonstruktion besteht. Die Nachteile dieser Leitung bestehen in einer schlechten Anbindung des Tragelements an die Schleppkette sowie in einer erschwerten Konfektionierung.Another solution consists in a conventional round construction of the line, wherein the jacket consists of a so-called steel / polyurethane composite construction. The disadvantages of this line consist in a poor connection of the support element to the drag chain and in a difficult assembly.

Unter den extrem schwierigen Bedingungen fallen die bekannten Leitungen durch die sogenannte Korkenzieherbildung aus, wodurch es zu größeren Ausfallzeiten der Industrieanlagen kommt.Under the extremely difficult conditions, the known lines fail due to the so-called corkscrew formation, resulting in greater downtime of the industrial plants.

Aus der DE-C-42 18 707 ist eine flexible Leitung zur Stromversorgung von Schrämmaschinen bekannt, welche aus einem Verseilverband aus drei um ein Zentralelement angeordneten Energieadern besteht. Die Verseilzwickel zwischen den Energieadern sind von Jutetrensen ausgefüllt. Der so ausgestaltete Verseilverband ist von einem Innenmantel eingeschlossen. Der Innenmantel ist von einem Stahllitzengeflecht sowie einem Außenmantel aus Polychloropren umgeben.From the DE-C-42 18 707 is a flexible cable for power supply of cutting machines known, which consists of a stranding of three arranged around a central element energy core. The stranding between the energy wires are filled with jute tears. The stranded bandage designed in this way is enclosed by an inner jacket. The inner casing is surrounded by a braided steel braid and an outer jacket made of polychloroprene.

Aus der EP-A-0 718 854 ist ein elektrisches Kabel zum Gebrauch in Operationsräumen bekannt, welches eine Armierung aufweist, die den Mantel gegen den Angriff scharfer chirurgische Geräte schützen soll. Das Kabel besteht aus einer Kabelseele aus elektrisch isolierten Leitern sowie einer die Leiter umgebenden Abschirmung aus einem metallischen Drahtgeflecht. Die Kabelseele ist umgeben von einem Innenmantel, einer auf den Innenmantel aufgelegten Armierung aus Metalldrähten sowie einem Außenmantel. Der Außenmantel durchdringt die zwischen den Metalldrähten befindlichen Zwischenräume und ist mit dem Innenmantel verbunden. Die Bedeckung der Armierung beträgt bis zu 50 %.From the EP-A-0 718 854 there is known an electrical cable for use in operating rooms which has a reinforcement intended to protect the sheath against attack by sharp surgical equipment. The cable consists of a cable core of electrically insulated conductors and a shield surrounding the conductors made of a metallic wire mesh. The cable core is surrounded by an inner sheath, an applied on the inner sheath reinforcement of metal wires and an outer sheath. The outer jacket penetrates the spaces between the metal wires and is connected to the inner jacket. The coverage of the reinforcement is up to 50%.

Die vorliegende Erfindung hat sich zur Aufgabe gestellt, eine flexible elektrische Leitung für extreme Beanspruchungen bereitzustellen, die für Verfahrwege von über 30 Metern mit Geschwindigkeiten bis zu 500 m/min und Beschleunigungen bzw.The present invention has set itself the task of providing a flexible electrical cable for extreme loads, for travel distances of over 30 meters with speeds up to 500 m / min and accelerations or

Verzögerungen bis 10 m/sec2 geeignet ist und die darüber hinaus leicht konfektionierbar ist.Delays to 10 m / sec 2 is suitable and is also easy to assemble.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is solved by the features of patent claim 1.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen erfaßt.Further advantageous embodiments of the invention are covered in the subclaims.

Die Erfindung ist anhand des in der Zeichnung schematisch dargestellten Ausführungsbeispiels näher erläutert.The invention is explained in more detail with reference to the embodiment schematically illustrated in the drawing.

Mit 1 ist ein zentrales Element bezeichnet, welches aus einem Stahlseil 1a sowie einer auf dem Stahlseil 1a befindlichen kompressiblen Hülle 1 b, z. B. einer Umwicklung aus sogenannten Flockgarnen besteht.1 with a central element is referred to, which consists of a steel cable 1a and a located on the steel cable 1a compressible shell 1 b, z. B. a wrap of so-called flock yarns.

Um dieses zentrale Element 1 sind sechs Aderbündel 2, 3, 4, 5, 6 und 7 herumgeseilt, von denen jedes aus drei Adern 8, 9 und 10 besteht. Jede Ader besteht aus einem Leiter 11, z. B. einem Litzenleiter sowie einer Isolierung 12 z. B. aus einer Zweischichtisolierung, wie sie in der älteren deutschen Patentanmeldung 100 36 610.4 vom 27. 07. 2000 beschrieben ist.Around this central element 1, six wire bundles 2, 3, 4, 5, 6 and 7 are stranded, each consisting of three wires 8, 9 and 10. Each wire consists of a conductor 11, z. B. a stranded conductor and insulation 12 z. B. from a two-layer insulation, as described in the earlier German patent application 100 36 610.4 dated 27. 07. 2000 is described.

Über der aus den Aderbündeln 2, 3, 4, 5, 6 und 7 gebildeten Verseillage befindet sich ein Innenmantel 13 z. B. aus thermoplastischem Polyurethan, der die Zwickel zwischen den Aderbündeln ausfüllt.On the Verseillage formed from the core bundles 2, 3, 4, 5, 6 and 7 is an inner shell 13 z. B. of thermoplastic polyurethane, which fills the gusset between the wire bundles.

Anstelle des zentralen Elements 1- in manchen Fällen jedoch auch zusätzlich zu diesem - können in den Zwickeln nicht dargestellte zug- und stauchstabile Elemente vorgesehen sein.Instead of the central element 1- in some cases, however, in addition to this - can be provided in the gussets not shown tensile and compression stable elements.

Der Innenmantel 13 ist von einer Bewicklung 14 umgeben, die vorzugsweise aus einem Faservliesband besteht.The inner jacket 13 is surrounded by a winding 14, which preferably consists of a nonwoven ribbon.

Über der Bewicklung 14 befindet sich ein Armierungsgeflecht 15, welches mit einer optischen Bedeckung von 30 - 80 % aufgebracht ist, so daß der Werkstoff des Außenmantels 16 das Armierungsgeflecht 15 durchdringen und bis zur Bewicklung 14 dringen kann. Außenmantel 16 und Armierungsgeflecht 15 bilden eine Einheit, die bei der Konfektionierung der Leitungsenden leicht von dem Innenmantel 13 bzw. der Bewicklung 14 abgehoben werden kann.About the winding 14 is a Armierungsgeflecht 15, which is applied with an optical coverage of 30 - 80%, so that the material of the outer shell 16 can penetrate the Armierungsgeflecht 15 and penetrate to the winding 14. Outer jacket 16 and reinforcement mesh 15 form a unit that can be easily lifted off the inner jacket 13 and the winding 14 in the assembly of the cable ends.

Die das Armierungsgeflecht 15 bildenden Elemente 17 sind vorzugsweise Flachelemente, die äußerst flexibel, dennoch aber zug- und stauchstabil sind. Ein Flachelement 17 besteht aus vier nebeneinander angeordneten langgestreckten Objekten 18, die gemeinsam von einer Kunststoffhülle 19, vorzugsweise aus Polyamid, umgeben sind.The reinforcing braiding 15 forming elements 17 are preferably flat elements that are extremely flexible, yet tensile and stably stable. A flat element 17 consists of four juxtaposed elongated objects 18, which are jointly surrounded by a plastic sheath 19, preferably made of polyamide.

Die Objekte 18 sind entweder gefachte Stahldrähte oder flache in einer Matrix aus Polyamid laufende Fasern oder Faserbündel aus Polyaramid (Kevlar), Glas oder Kohlefaser. Der Außenmantel 16 ist mit besonderem Vorteil aus thermoplastischem Polyurethan durch Extrusion hergestellt.The objects 18 are either folded steel wires or flat polyamide (Kevlar), glass or carbon fiber fibers or fiber bundles running in a matrix of polyamide. The outer jacket 16 is made with particular advantage of thermoplastic polyurethane by extrusion.

Claims (8)

  1. A flexible electrical line with a core made of a plurality of insulated conductors that are stranded together, an inner sheath (13) filling up the interstices, a wrapping (14) positioned around the inner sheath (13), an armor braiding (15) with an optical coverage of 30 % - 80 % and a plastic outer sheath (16) penetrating the interstices of the armor braiding (15), wherein the armor elements (17) which form the armor braiding are formed by a plurality of steel wires (18) arranged side by side and/or polyaramide fibers (18) which are surrounded by a polyamide sheath (19).
  2. A line according to claim 1, characterized in that the insulated conductors are conductor bundles (2,3,4,5,6,7).
  3. A line according to claim 1 or 2, characterized in that the conductors are stranded onto a central core element (1) which is stable to tensile and compressive stresses.
  4. A line according to one of the claims 1 to 3, characterized in that long extending elements which are stable to tensile and compressive stresses are arranged in the interstices.
  5. A line according to one of the claims 1 to 4, characterized in that the inner sheath (13) is made of thermoplastic polyurethane.
  6. A line according to one of the claims 1 to 5, characterized in the core element (1), which is stable to tensile and compressive stresses, is a steel rope (1 a) with a compressible sheath (1b).
  7. A line according to one of the claim 1 to 6, characterized in that the wrapping (14) is made of a fleece material.
  8. A line according to one of the claims 1 to 7, characterized in that the outer sheath (16) is made of thermoplastic polyurethane.
EP01403136A 2001-01-18 2001-12-06 Flexible electrical line Expired - Lifetime EP1225598B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20100911U DE20100911U1 (en) 2001-01-18 2001-01-18 Flexible electrical wire
DE20100911U 2001-01-18

Publications (3)

Publication Number Publication Date
EP1225598A2 EP1225598A2 (en) 2002-07-24
EP1225598A3 EP1225598A3 (en) 2003-02-12
EP1225598B1 true EP1225598B1 (en) 2008-09-10

Family

ID=7951797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01403136A Expired - Lifetime EP1225598B1 (en) 2001-01-18 2001-12-06 Flexible electrical line

Country Status (5)

Country Link
US (1) US6525271B2 (en)
EP (1) EP1225598B1 (en)
AT (1) ATE408228T1 (en)
DE (2) DE20100911U1 (en)
ES (1) ES2311008T3 (en)

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Publication number Priority date Publication date Assignee Title
ATE327560T1 (en) 2003-03-17 2006-06-15 Nexans FLEXIBLE CABLE WITH AN ABRASION-RESISTANT SHEATH
US20050045366A1 (en) * 2003-08-25 2005-03-03 Michael Wolff Power cord having one or more flexible carbon material sheathings
US7271340B2 (en) * 2005-01-06 2007-09-18 Precision Interconnect, Inc. Flexible interconnect cable with insulated shield and method of manufacturing
US8928449B2 (en) * 2008-05-28 2015-01-06 Flextronics Ap, Llc AC/DC planar transformer
US8119917B2 (en) * 2009-09-11 2012-02-21 Samuel John Edward King Braided cable
US9093195B1 (en) * 2010-02-26 2015-07-28 Southwire Company, Llc Rugged cable
JP6220113B2 (en) 2011-02-17 2017-10-25 矢崎総業株式会社 Manufacturing method of shield sleeve
CH704545A2 (en) * 2011-02-23 2012-08-31 Leoni Studer Ag An electric cable preferably for an operating voltage greater than 1000 volts.
CN203325542U (en) * 2013-04-11 2013-12-04 富士康(昆山)电脑接插件有限公司 Cable
US9589704B2 (en) 2013-08-09 2017-03-07 Belden Inc. Low R, L, and C cable
CN106409408A (en) * 2016-09-30 2017-02-15 昆山信昌电线电缆有限公司 Mechanical arm torsion cable
EP4027355A1 (en) * 2021-01-12 2022-07-13 Gebauer & Griller Kabelwerke Gesellschaft m.b.H. Cable

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Also Published As

Publication number Publication date
DE20100911U1 (en) 2001-04-12
EP1225598A2 (en) 2002-07-24
US20020092668A1 (en) 2002-07-18
ES2311008T3 (en) 2009-02-01
DE50114304D1 (en) 2008-10-23
US6525271B2 (en) 2003-02-25
EP1225598A3 (en) 2003-02-12
ATE408228T1 (en) 2008-09-15

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