EP2019394A1 - Flexible electric cable - Google Patents

Flexible electric cable Download PDF

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Publication number
EP2019394A1
EP2019394A1 EP07290849A EP07290849A EP2019394A1 EP 2019394 A1 EP2019394 A1 EP 2019394A1 EP 07290849 A EP07290849 A EP 07290849A EP 07290849 A EP07290849 A EP 07290849A EP 2019394 A1 EP2019394 A1 EP 2019394A1
Authority
EP
European Patent Office
Prior art keywords
core
cable according
stranding
sliding layer
polytetrafluoroethylene
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.)
Granted
Application number
EP07290849A
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German (de)
French (fr)
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EP2019394B1 (en
Inventor
Ferdinand Grögl
Thomas Mann
Angela Brutler
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Nexans SA
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Nexans SA
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Filing date
Publication date
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Priority to EP07290849A priority Critical patent/EP2019394B1/en
Priority to DE502007004019T priority patent/DE502007004019D1/en
Priority to AT07290849T priority patent/ATE470226T1/en
Publication of EP2019394A1 publication Critical patent/EP2019394A1/en
Application granted granted Critical
Publication of EP2019394B1 publication Critical patent/EP2019394B1/en
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    • 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
    • H01B7/189—Radial force absorbing layers providing a cushioning effect
    • 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

Definitions

  • the invention relates to a flexible electrical line for portable consumers, which has at least two each consisting of an electrical conductor and a surrounding surrounding insulation cores as stranding elements, which are stranded around a core, which is equipped with an existing plastic tensile element which is surrounded by a sheath of insulating material in which there are longitudinally extending dimples in which the stranding elements lie, and which are surrounded by a common sheath of insulating material ( EP 1041585 B 1).
  • Such lines are used for example for connecting mobile devices, in particular robots, with a voltage or signal source.
  • the cables must be mechanically strong, with a constant flexural strength for a long time. They should remain well bendable in a wide temperature range, for example, between -40 ° C and +80 ° C.
  • Of particular importance to such conduits is their torsional strength, as robots must become more and more mobile as technology advances so that they can be moved back and forth along production lines, for example.
  • the lines are especially then constantly twisted in changing directions.
  • cables are required, which survive, for example, up to five million torsional cycles torsional loads by angles of, for example, ⁇ 360 ° and more unscathed.
  • the well-known line after the above-mentioned EP 1041585 B1 is designed as a flexible power line, which has a central core, around the power core, at least one control line and at least one data line are herumversilt.
  • the Core has a central plastic traction element over which a sheath of a cross-linked material is attached, in which for each umversilte element of the contour of the same adapted, extending over the entire axial length of the core indentation is attached.
  • This power line in addition to energy and control commands in addition, for example, also measured data can be transmitted.
  • the good bendability of the power line is supported by the special design of the core, in which the respective stranded element adapted dents these elements can slide when bending the power line.
  • This power line has proven itself in practice. Measures, such as a sliding mobility of the stranded elements to be achieved relative to the core, and the torsional strength of the power line are not mentioned in the document.
  • the invention has for its object to make the line initially described so that it has an increased torsional strength.
  • An essential element of this line is the lubricious coated, elastically compressible and tensile core, through which flexibility and torsional strength of the line are ensured in the long term.
  • the good flexibility of the line is supported by the existing plastic tensile element.
  • the elastically compressible sheath of the core allows a displacement of the stranding elements when they are pressed against the core during rotation of the line.
  • the stranding members are easy to slide on the same in the axial direction because of the sliding layer of the core, damage thereof can be prevented even after many torsional and bending cycles with high safety.
  • Fig. 1 is a flexible electrical line reproduced in the simplest embodiment, which has a tensile core K as a central element.
  • the core K consists of a tensile element 1 made of plastic and a surrounding casing 2 made of an elastically compressible material. Twisted around the core K are two cores 3 and 4, which may be signal cores or energy cores, and filling elements 5 and 6, by which an approximately circular core of the conduit is formed together with the cores 3 and 4.
  • the stranding and filling elements 3 to 6 are surrounded by a jacket 7 made of insulating material, which consists for example of polyurethane.
  • the sheath 2 of the core K is in the stranding of the stranding 3 to 5 pressed by the same in the radial direction.
  • K dents are formed in the core, which are as in the Fig. 1, 3rd and 4 is indicated. The dents extend helically in the axial direction.
  • the kernel K has according to Fig. 2 in its original form an approximately circular cross-section. It can depending on the nature and structure of the stranding 3 to 5 but also have a different geometric shape.
  • the core K can also be oval or rectangular in cross section, for example.
  • the sheath 2 may advantageously consist of a soft, gel-like thermoplastic elastomer (TPE-O) or of silicone or rubber, and also in foamed or cellular form.
  • the tensile element 1 is advantageously made of aramid. An aramid yarn for the element 1 is preferably used.
  • the sheath 2 of the core K is surrounded by a sliding layer 8, the material of which has good sliding properties in relation to the stranding elements 3 to 5.
  • a sliding layer 8 are materials based on polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • the sliding layer 8 produced in this way can subsequently be thermally treated in a heating zone equipped, for example, with infrared radiators. It adheres well to the shell 2 and has a thickness lying between 5 .mu.m and 25 .mu.m.
  • a film of PTFE with a thickness of at least 25 microns can be wrapped around the envelope 2 gapless.
  • a film is advantageously made of foamed PTFE, preferably a low density unsintered PTFE.
  • the sliding layer 8 is designed and arranged around the core K around, that the elastic deformability of the sheath 2 is not affected. On the other hand, the sliding layer 8 can follow any changes in shape of the shell 2 of the core K without problems.
  • the line according to the invention can according to Fig. 3 be equipped with an overall electrical screen 9, which is disposed above the existing of the stranding 3 to 6 soul.
  • a total screen 9 can be designed as a braid or as Umseilung.
  • To build the same tinned copper wires can be used in conventional technology. With particular advantage but wires are used with better resilient properties.
  • Such wires are advantageously tin-plated or nickel-plated copper-clad steel wires or high-strength chrome-nickel steel wires or tinned steel wires individually wrapped with tin-plated copper tapes.
  • a protective cover 10 is formed, which is elastically compressible and advantageously consists of the same materials as the shell 2.
  • the protective cover 10 is preferably again surrounded by a thin, for the sake of clarity not shown with sliding layer on which the overall shield 9 can slide well when twisting the line. She is with Advantage as well as the sliding layer 8 of the core K constructed.
  • the jacket 7 is made of insulating material.
  • the line according to the invention has in a preferred embodiment more than two wires.
  • She can according to Fig. 4
  • the data line 14 consists for example of four wires 15, which can be stranded together to form a so-called "star quad".
  • an electrically effective screen which is designed for example as a braid or braiding of tinned or silver-plated copper wires.
  • a thin sliding layer of a material is expediently formed around the data line 14, on which the screen can glide well.
  • a film of PTFE is preferably used, which is formed around the data line 14 without gaps.
  • Particularly suitable is a foamed, unsintered low density PTFE.

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  • Insulated Conductors (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)

Abstract

The cable has electrical conductors and wires (3, 4) designed as a stranding element and stranded around a core (K). The core is provided with a tension element (1) made of plastic, where the tension element is enclosed by a casing (2). A mantel (7) and the casing are made of an insulation material. The casing of the core is made of elastic material pressed for a period. The casing is enclosed by a sliding layer of a material with good sliding characteristics related to the stranding element. Elastic deformation is not impaired and deformations are carried out in the cable.

Description

Die Erfindung bezieht sich auf eine flexible elektrische Leitung für ortsveränderliche Verbraucher, die mindestens zwei jeweils aus einem elektrischen Leiter und einer denselben umgebenden Isolierung bestehende Adern als Verseilelemente aufweist, welche um einen Kern herum verseilt sind, der mit einem aus Kunststoff bestehenden zugfesten Element ausgerüstet ist, das von einer Hülle aus Isoliermaterial umgeben ist, in welcher in Längsrichtung verlaufende Dellen vorhanden sind, in denen die Verseilelemente liegen, und welche von einem gemeinsamen Mantel aus Isoliermaterial umgeben sind ( EP 1041585 B 1).The invention relates to a flexible electrical line for portable consumers, which has at least two each consisting of an electrical conductor and a surrounding surrounding insulation cores as stranding elements, which are stranded around a core, which is equipped with an existing plastic tensile element which is surrounded by a sheath of insulating material in which there are longitudinally extending dimples in which the stranding elements lie, and which are surrounded by a common sheath of insulating material ( EP 1041585 B 1).

Derartige Leitungen werden beispielsweise zum Verbinden von ortsveränderlichen Geräten, insbesondere von Robotern, mit einer Spannungs- bzw. Signalquelle eingesetzt. Die Leitungen müssen mechanisch belastbar sein, mit einer auf lange Zeit gleichbleibenden Biegefestigkeit. Sie sollen auch in einem weiten Temperaturbereich gut biegbar bleiben, der beispielsweise zwischen -40 °C und +80 °C liegt. Von besonderer Bedeutung für solche Leitungen ist ihre Torsionsfestigkeit, da Roboter mit fortschreitender Technik immer beweglicher werden müssen, damit sie beispielsweise entlang von Fertigungsstraßen hin- und herbewegt werden können. Die Leitungen werden insbesondere dann dauernd in wechselnden Richtungen tordiert. In der Praxis werden Leitungen gefordert, die beispielsweise bis zu fünf Millionen Torsionszyklen Torsionsbelastungen um Winkel von beispielsweise ± 360° und mehr unbeschadet überstehen.Such lines are used for example for connecting mobile devices, in particular robots, with a voltage or signal source. The cables must be mechanically strong, with a constant flexural strength for a long time. They should remain well bendable in a wide temperature range, for example, between -40 ° C and +80 ° C. Of particular importance to such conduits is their torsional strength, as robots must become more and more mobile as technology advances so that they can be moved back and forth along production lines, for example. The lines are especially then constantly twisted in changing directions. In practice, cables are required, which survive, for example, up to five million torsional cycles torsional loads by angles of, for example, ± 360 ° and more unscathed.

Die bekannte Leitung nach der eingangs erwähnten EP 1041585 B1 ist als flexible Starkstromleitung ausgeführt, die einen zentralen Kern aufweist, um den Energieadern, mindestens eine Steuerleitung und mindestens eine Datenleitung herumverseilt sind. Der Kern hat ein aus Kunststoff bestehendes zentrales Zugelement über dem eine Umhüllung aus einem vernetzten Material angebracht ist, in welcher für jedes herumverseilte Element eine der Kontur desselben angepaßte, sich über die ganze axiale Länge des Kerns erstreckende Eindellung angebracht ist. Mit dieser Starkstromleitung können neben Energie und Steuerbefehlen zusätzlich beispielsweise auch Meßdaten übertragen werden. Die gute Biegbarkeit der Starkstromleitung wird durch die spezielle Ausbildung des Kerns unterstützt, in dessen dem jeweiligen herumverseilten Element angepaßte Eindellungen diese Elemente beim Biegen der Starkstromleitung gleiten können. Diese Starkstromleitung hat sich in der Praxis bewährt. Maßnahmen, wie eine gleitende Beweglichkeit der verseilten Elemente relativ zum Kern erreicht werden soll, und zur Torsionsfestigkeit der Starkstromleitung sind in der Schrift nicht erwähnt.The well-known line after the above-mentioned EP 1041585 B1 is designed as a flexible power line, which has a central core, around the power core, at least one control line and at least one data line are herumversilt. The Core has a central plastic traction element over which a sheath of a cross-linked material is attached, in which for each umversilte element of the contour of the same adapted, extending over the entire axial length of the core indentation is attached. With this power line in addition to energy and control commands in addition, for example, also measured data can be transmitted. The good bendability of the power line is supported by the special design of the core, in which the respective stranded element adapted dents these elements can slide when bending the power line. This power line has proven itself in practice. Measures, such as a sliding mobility of the stranded elements to be achieved relative to the core, and the torsional strength of the power line are not mentioned in the document.

Der Erfindung liegt die Aufgabe zugrunde, die eingangs geschilderte Leitung so zu gestalten, daß sie eine erhöhte Torsionsfestigkeit hat.The invention has for its object to make the line initially described so that it has an increased torsional strength.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst,

  • daß die Hülle des Kerns aus einem auf Dauer elastisch bleibenden, eindrückbaren Material besteht und
  • daß die Hülle von einer Gleitschicht aus einem Material mit gegenüber den Verseilelementen guten Gleiteigenschaften umgeben ist.
This object is achieved according to the invention characterized
  • that the shell of the core consists of a permanently elastic, compressible material and
  • that the shell is surrounded by a sliding layer of a material with respect to the stranding good sliding properties.

Wesentliches Element dieser Leitung ist der gleitfähig beschichtete, elastisch komprimierbare und zugfeste Kern, durch welchen Biegbarkeit und Torsionsfestigkeit der Leitung auf Dauer sichergestellt sind. Die gute Biegbarkeit der Leitung wird durch das aus Kunststoff bestehende zugfeste Element unterstützt. Die elastisch komprimierbare Hülle des Kerns gestattet eine Verlagerung bzw. ein Ausweichen der Verseilelemente, wenn dieselben beim Verdrehen der Leitung gegen den Kern gedrückt werden. Da die Verseilelemente außerdem wegen der Gleitschicht des Kerns leicht in axialer Richtung auf demselben gleiten können, kann eine Beschädigung derselben auch nach vielen Torsions- und Biegezyklen mit hoher Sicherheit ausgeschlossen werden.An essential element of this line is the lubricious coated, elastically compressible and tensile core, through which flexibility and torsional strength of the line are ensured in the long term. The good flexibility of the line is supported by the existing plastic tensile element. The elastically compressible sheath of the core allows a displacement of the stranding elements when they are pressed against the core during rotation of the line. In addition, since the stranding members are easy to slide on the same in the axial direction because of the sliding layer of the core, damage thereof can be prevented even after many torsional and bending cycles with high safety.

Ausführungsbeispiele des Erfindungsgegenstandes sind in den Zeichnungen dargestellt.Embodiments of the subject invention are illustrated in the drawings.

Es zeigen:

  • Fig. 1 in schematischer Darstellung einen Querschnitt durch eine Leitung nach der Erfindung.
  • Fig. 2 ein Element der Leitung in vergrößerter Darstellung.
  • Fig. 3 die Leitung nach Fig. 1 in ergänzter Ausführungsform.
  • Fig. 4 eine weitere Ausführungsform der Leitung nach der Erfindung.
Show it:
  • Fig. 1 in a schematic representation of a cross section through a conduit according to the invention.
  • Fig. 2 an element of the line in an enlarged view.
  • Fig. 3 the line after Fig. 1 in a supplemented embodiment.
  • Fig. 4 a further embodiment of the conduit according to the invention.

In Fig. 1 ist eine flexible elektrische Leitung in einfachster Ausführungsform wiedergegeben, die als zentrales Element einen zugfesten Kern K aufweist. Der Kern K besteht aus einem zugfesten Element 1 aus Kunststoff und einer dasselbe umgebenden Hülle 2 aus einem elastisch eindrückbaren Material. Um den Kern K herumverseilt sind zwei Adern 3 und 4, bei denen es sich um Signaladern oder Energieadern handeln kann, und Füllelemente 5 und 6, durch welche zusammen mit den Adern 3 und 4 eine etwa kreisrunde Seele der Leitung gebildet ist. Die Verseilelemente und Füllelemente 3 bis 6 sind von einem Mantel 7 aus Isoliermaterial umgeben, der beispielsweise aus Polyurethan besteht. Die Hülle 2 des Kerns K wird beim Verseilen der Verseilelemente 3 bis 5 durch dieselben in radialer Richtung eingedrückt. Dabei werden im Kern K Dellen gebildet, die so wie es in den Fig. 1, 3 und 4 angedeutet ist. Die Dellen erstrecken sich in axialer Richtung wendelförmig.In Fig. 1 is a flexible electrical line reproduced in the simplest embodiment, which has a tensile core K as a central element. The core K consists of a tensile element 1 made of plastic and a surrounding casing 2 made of an elastically compressible material. Twisted around the core K are two cores 3 and 4, which may be signal cores or energy cores, and filling elements 5 and 6, by which an approximately circular core of the conduit is formed together with the cores 3 and 4. The stranding and filling elements 3 to 6 are surrounded by a jacket 7 made of insulating material, which consists for example of polyurethane. The sheath 2 of the core K is in the stranding of the stranding 3 to 5 pressed by the same in the radial direction. In this case K dents are formed in the core, which are as in the Fig. 1, 3rd and 4 is indicated. The dents extend helically in the axial direction.

Der Kern K hat gemäß Fig. 2 in seiner Ursprungsform einen etwa kreisförmigen Querschnitt. Er kann je nach Art und Aufbau der Verseilelemente 3 bis 5 aber auch eine andere geometrische Form haben. Der Kern K kann im Querschnitt beispielsweise auch oval oder rechteckig sein. Die Hülle 2 kann mit Vorteil aus einem weichen, gelartigen thermoplastischen Elastomer (TPE-O) oder aus Silikon oder Gummi bestehen, und zwar auch in aufgeschäumter bzw. zelliger Form. Das zugfeste Element 1 besteht mit Vorteil aus Aramid. Es wird vorzugsweise ein Aramidgarn für das Element 1 eingesetzt.The kernel K has according to Fig. 2 in its original form an approximately circular cross-section. It can depending on the nature and structure of the stranding 3 to 5 but also have a different geometric shape. The core K can also be oval or rectangular in cross section, for example. The sheath 2 may advantageously consist of a soft, gel-like thermoplastic elastomer (TPE-O) or of silicone or rubber, and also in foamed or cellular form. The tensile element 1 is advantageously made of aramid. An aramid yarn for the element 1 is preferably used.

Die Hülle 2 des Kerns K ist von einer Gleitschicht 8 umgeben, deren Material gute Gleiteigenschaften gegenüber den Verseilelementen 3 bis 5 hat. Geeignet für eine solche Gleitschicht 8 sind Materialien auf Basis von Polytetrafluorethylen (PTFE). Ein entsprechendes, in flüssiger Form vorliegendes Material, in dem PTFE-Nanopartikel enthalten sind, kann beispielsweise rundum auf die Hülle 2 aufgespritzt oder im Tauchverfahren aufgebracht werden. Die so erzeugte Gleitschicht 8 kann anschließend in einer beispielsweise mit Infrarotstrahlern ausgerüsteten Heizstrecke thermisch nachbehandelt werden. Sie haftet gut an der Hülle 2 und hat eine mit Vorteil zwischen 5 µm und 25 µm liegende Dicke.The sheath 2 of the core K is surrounded by a sliding layer 8, the material of which has good sliding properties in relation to the stranding elements 3 to 5. Suitable for such a sliding layer 8 are materials based on polytetrafluoroethylene (PTFE). A corresponding material in liquid form in which PTFE nanoparticles are included, for example, can be sprayed all around the shell 2 or applied by dipping. The sliding layer 8 produced in this way can subsequently be thermally treated in a heating zone equipped, for example, with infrared radiators. It adheres well to the shell 2 and has a thickness lying between 5 .mu.m and 25 .mu.m.

Als Gleitschicht 8 kann auch eine Folie aus PTFE mit einer Dicke von mindestens 25 µm lückenlos um die Hülle 2 herumgewickelt werden. Eine solche Folie besteht mit Vorteil aus geschäumtem PTFE, und zwar vorzugsweise aus einem ungesinterten PTFE niedriger Dichte.As a sliding layer 8, a film of PTFE with a thickness of at least 25 microns can be wrapped around the envelope 2 gapless. Such a film is advantageously made of foamed PTFE, preferably a low density unsintered PTFE.

Die Gleitschicht 8 ist so ausgeführt und um den Kern K herum angeordnet, daß die elastische Verformbarkeit der Hülle 2 nicht beeinträchtigt wird. Andererseits kann die Gleitschicht 8 allen Formänderungen der Hülle 2 des Kerns K ohne Probleme folgen.The sliding layer 8 is designed and arranged around the core K around, that the elastic deformability of the sheath 2 is not affected. On the other hand, the sliding layer 8 can follow any changes in shape of the shell 2 of the core K without problems.

Die Leitung nach der Erfindung kann gemäß Fig. 3 auch mit einem elektrischen Gesamtschirm 9 ausgerüstet sein, der über der aus den Verseilelementen 3 bis 6 bestehenden Seele angeordnet ist. Ein solcher Gesamtschirm 9 kann als Geflecht oder als Umseilung ausgeführt sein. Zum Aufbau desselben können in üblicher Technik verzinnte Kupferdrähte eingesetzt werden. Mit besonderem Vorteil werden aber Drähte mit besseren federnden Eigenschaften eingesetzt. Solche Drähte sind mit Vorteil verzinnte oder vernickelte kupferplattierte Stahldrähte oder hochfeste Chrom-Nickel-Stahldrähte oder verzinnte Stahldrähte, die einzeln mit verzinnten Kupferbändchen umsponnen sind.The line according to the invention can according to Fig. 3 be equipped with an overall electrical screen 9, which is disposed above the existing of the stranding 3 to 6 soul. Such a total screen 9 can be designed as a braid or as Umseilung. To build the same tinned copper wires can be used in conventional technology. With particular advantage but wires are used with better resilient properties. Such wires are advantageously tin-plated or nickel-plated copper-clad steel wires or high-strength chrome-nickel steel wires or tinned steel wires individually wrapped with tin-plated copper tapes.

Es ist sinnvoll, für den Gesamtschirm 9 eine im wesentlichen kreisrunde Auflagefläche um die Seele der Leitung herum zu erzeugen. Dazu kann um die Verseilelemente und Füllelemente 3 bis 6, gegebenenfalls nach vorheriger Bandierung, eine Schutzhülle 10 herumgeformt werden, die elastisch komprimierbar ist und mit Vorteil aus den gleichen Materialien wie die Hülle 2 besteht. Die Schutzhülle 10 ist vorzugsweise wieder von einer dünnen, der Übersichtlichkeit halber nicht mit dargestellten Gleitschicht umgeben, auf welcher der Gesamtschirm 9 beim Tordieren der Leitung gut gleiten kann. Sie ist mit Vorteil ebenso wie die Gleitschicht 8 des Kerns K aufgebaut. Über dem Gesamtschirm 9 ist der Mantel 7 aus Isoliermaterial angebracht.It is useful for the overall screen 9 to produce a substantially circular support surface around the soul of the line around. For this purpose, around the stranding elements and filling elements 3 to 6, optionally after previous banding, a protective cover 10 are formed, which is elastically compressible and advantageously consists of the same materials as the shell 2. The protective cover 10 is preferably again surrounded by a thin, for the sake of clarity not shown with sliding layer on which the overall shield 9 can slide well when twisting the line. She is with Advantage as well as the sliding layer 8 of the core K constructed. Over the overall shield 9, the jacket 7 is made of insulating material.

Die Leitung nach der Erfindung weist in bevorzugter Ausführungsform mehr als zwei Adern auf. Sie kann gemäß Fig. 4 beispielsweise aus drei Energieadern 11, 12 und 13 sowie einer Datenleitung 14 bestehen, die als Verseilelemente so wie für die Adern 3 und 4 geschildert, um den Kern K herum verseilt sind. Die Datenleitung 14 besteht beispielsweise aus vier Adern 15, die zu einem sogenannten "Sternvierer" miteinander verseilt sein können. Bei einer Übertragung von Daten in Frequenzbereichen > 500 kHz ist es außerdem sinnvoll, um die Datenleitung 14 herum einen elektrisch wirksamen Schirm anzuordnen, der beispielsweise als Geflecht oder Umspinnung aus verzinnten oder versilberten Kupferdrähten ausgeführt ist. Vor Anbringung eines solchen Schirms wird zweckmäßig erst eine dünne Gleitschicht aus einem Material um die Datenleitung 14 herumgeformt, auf welcher der Schirm gut gleiten kann. Für eine solche Gleitschicht wird vorzugsweise eine Folie aus PTFE verwendet, die lückenlos um die Datenleitung 14 herumgeformt wird. Besonders geeignet ist ein geschäumtes, ungesintertes PTFE niedriger Dichte.The line according to the invention has in a preferred embodiment more than two wires. She can according to Fig. 4 For example, consist of three energy wires 11, 12 and 13 and a data line 14, which are described as stranding as described for the wires 3 and 4, around the core K are stranded around. The data line 14 consists for example of four wires 15, which can be stranded together to form a so-called "star quad". In a transmission of data in frequency ranges> 500 kHz, it is also useful to arrange around the data line 14 around an electrically effective screen, which is designed for example as a braid or braiding of tinned or silver-plated copper wires. Before attaching such a screen, a thin sliding layer of a material is expediently formed around the data line 14, on which the screen can glide well. For such a sliding layer, a film of PTFE is preferably used, which is formed around the data line 14 without gaps. Particularly suitable is a foamed, unsintered low density PTFE.

Claims (10)

Flexible elektrische Leitung für ortsveränderliche Verbraucher, die mindestens zwei jeweils aus einem elektrischen Leiter und einer denselben umgebenden Isolierung bestehende Adern als Verseilelemente aufweist, welche um einen Kern herum verseilt sind, der mit einem aus Kunststoff bestehenden zugfesten Element ausgerüstet ist, das von einer Hülle aus Isoliermaterial umgeben ist, in welcher in Längsrichtung verlaufende Dellen vorhanden sind, in denen die Verseilelemente liegen, und welche von einem gemeinsamen Mantel aus Isoliermaterial umgeben sind, dadurch gekennzeichnet, - daß die Hülle (2) des Kerns (K) aus einem auf Dauer elastisch bleibenden, eindrückbaren Material besteht und - daß die Hülle (2) von einer Gleitschicht (8) aus einem Material mit gegenüber den Verseilelementen (3,4,5) guten Gleiteigenschaften umgeben ist. Flexible electric cable for portable consumers, comprising at least two each consisting of an electrical conductor and an insulating surrounding the same existing stranding elements, which are stranded around a core, which is equipped with a plastic tensile element, which from a shell Insulating material is surrounded, in which are provided longitudinally extending dents in which the stranding elements lie, and which are surrounded by a common sheath of insulating material, characterized - That the sheath (2) of the core (K) consists of a permanently elastic remaining, crushable material and - That the sheath (2) is surrounded by a sliding layer (8) made of a material with respect to the stranding (3,4,5) good sliding properties. Kabel nach Anspruch 1, dadurch gekennzeichnet, daß für die Gleitschicht (8) ein Material auf der Basis von Polytetrafluorethylen eingesetzt ist.Cable according to claim 1, characterized in that a material based on polytetrafluoroethylene is used for the sliding layer (8). Kabel nach Anspruch 2, dadurch gekennzeichnet, daß die Gleitschicht (8) mit einer Schichtdicke von mindestens 5 µm durch Spritzen oder Tauchen auf die Hülle (2) aufgebracht ist.Cable according to claim 2, characterized in that the sliding layer (8) with a layer thickness of at least 5 microns by spraying or dipping on the shell (2) is applied. Kabel nach Anspruch 2, dadurch gekennzeichnet, daß eine Folie aus Polytetrafluorethylen mit einer Dicke von mindestens 25 µm lückenlos um die Hülle (2) herumgeformt ist.Cable according to Claim 2, characterized in that a film of polytetrafluoroethylene having a thickness of at least 25 μm is formed around the envelope (2) without gaps. Kabel nach Anspruch 4, dadurch gekennzeichnet, daß die Folie aus geschäumtem, ungesintertem Polytetrafluorethylen niedriger Dichte besteht.A cable according to claim 4, characterized in that the film consists of foamed, unsintered low density polytetrafluoroethylene. Kabel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß über der aus Kern (K) und Verseilelementen bestehenden Seele eine Schutzhülle (10) aus einem elastisch eindrückbaren Material angebracht ist.Cable according to one of Claims 1 to 5, characterized in that a protective cover (10) made of an elastically compressible material is applied over the core consisting of core (K) and stranding elements. Kabel nach Anspruch 6, dadurch gekennzeichnet, daß eine als Gleitschicht dienende Folie aus Polytetrafluorethylen über der Schutzhülle (10) angebracht ist.Cable according to Claim 6, characterized in that a film of polytetrafluoroethylene serving as a sliding layer is applied over the protective cover (10). Kabel nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß ein die aus Kern (K) und Verseilelementen sowie gegebenenfalls der Schutzhülle (10) mit Gleitschicht bestehende Seele umgebender Gesamtschirm (9) vorhanden ist.Cable according to one of Claims 1 to 7, characterized in that there is a total shield (9) surrounding the core (K) and stranding elements and optionally the protective cover (10) with a sliding layer. Kabel nach Anspruch 8, dadurch gekennzeichnet, daß der Gesamtschirm (9) als Umseilung aus verzinnten oder vernickelten, kupferplattierten Stahldrähten ausgeführt ist.Cable according to claim 8, characterized in that the overall screen (9) is designed as a stranding of tinned or nickel-plated copper-plated steel wires. Kabel nach Anspruch 8, dadurch gekennzeichnet, daß der Gesamtschirm (9) als Geflecht aus verzinnten oder vernickelten, kupferplattierten Stahldrähten ausgeführt ist.Cable according to Claim 8, characterized in that the overall screen (9) is designed as a mesh of tinned or nickel-plated copper-plated steel wires.
EP07290849A 2007-07-04 2007-07-04 Flexible electric cable Not-in-force EP2019394B1 (en)

Priority Applications (3)

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EP07290849A EP2019394B1 (en) 2007-07-04 2007-07-04 Flexible electric cable
DE502007004019T DE502007004019D1 (en) 2007-07-04 2007-07-04 Flexible electrical cable
AT07290849T ATE470226T1 (en) 2007-07-04 2007-07-04 FLEXIBLE ELECTRICAL CABLE

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Application Number Priority Date Filing Date Title
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EP2019394B1 EP2019394B1 (en) 2010-06-02

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CN102667966A (en) * 2009-11-27 2012-09-12 阿克海底公司 Vulcanised power umbilical
EP2031604A3 (en) * 2007-08-31 2013-12-25 Nexans Flexible electric cable
CN103854784A (en) * 2014-02-24 2014-06-11 安徽华联电缆集团有限公司 Inflaming retarding, heat resisting, high temperature resisting and high elasticity controlling cable
CN103886979A (en) * 2014-02-25 2014-06-25 安徽怡和电缆有限公司 Polyethylene insulation instrument signal cable
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CN105070358A (en) * 2015-08-14 2015-11-18 昆山信昌电线电缆有限公司 High flexibility wear resisting flame retardation industrial chain cable
CN106205791A (en) * 2016-08-30 2016-12-07 无锡江南电缆有限公司 A kind of improved machine people's cable
CN109243676A (en) * 2018-09-28 2019-01-18 新宇电缆集团股份有限公司 A kind of high soft antitorque robot cable
CN109411117A (en) * 2018-11-27 2019-03-01 天津亿鑫通科技股份有限公司 A kind of super soft twist resistant cable of Halogen and preparation method thereof
DE202020102564U1 (en) 2020-05-06 2020-05-28 Offcon GmbH Arrangement with torsion connections
DE102020112329A1 (en) 2020-05-06 2021-11-11 Offcon GmbH Arrangement with torsion connections
CN117198622A (en) * 2023-09-14 2023-12-08 安徽埃克森科技集团有限公司 Robot cable

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2031604A3 (en) * 2007-08-31 2013-12-25 Nexans Flexible electric cable
CN102667966B (en) * 2009-11-27 2014-12-31 阿克海底公司 Vulcanised power umbilical
CN102667966A (en) * 2009-11-27 2012-09-12 阿克海底公司 Vulcanised power umbilical
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WO2015090658A1 (en) 2013-12-20 2015-06-25 Continental Teves Ag & Co. Ohg Hybrid cable, method for producing same, and use of such a hybrid cable
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US9799424B2 (en) 2013-12-20 2017-10-24 Leoni Kabel Holding Gmbh Hybrid cable, method for its manufacture and use of such a hybrid cable
CN105408965A (en) * 2013-12-20 2016-03-16 大陆-特韦斯贸易合伙股份公司及两合公司 Hybrid cable, method for producing same, and use of hybrid cable
CN103854784A (en) * 2014-02-24 2014-06-11 安徽华联电缆集团有限公司 Inflaming retarding, heat resisting, high temperature resisting and high elasticity controlling cable
CN103854784B (en) * 2014-02-24 2016-03-09 安徽华联电缆集团有限公司 A kind of flame-proof heat-resistant fire-resistant high-resiliency control cables
CN103886979A (en) * 2014-02-25 2014-06-25 安徽怡和电缆有限公司 Polyethylene insulation instrument signal cable
CN104715827A (en) * 2015-02-27 2015-06-17 安徽华天电缆有限公司 High-temperature resistant shielding flexible cable
CN104810081A (en) * 2015-04-28 2015-07-29 无锡鑫宏业特塑线缆有限公司 Multi-protection low-smoke zero-halogen high-flame-retardancy direct-current cable for rail transit
CN105070358A (en) * 2015-08-14 2015-11-18 昆山信昌电线电缆有限公司 High flexibility wear resisting flame retardation industrial chain cable
CN106205791A (en) * 2016-08-30 2016-12-07 无锡江南电缆有限公司 A kind of improved machine people's cable
CN109243676A (en) * 2018-09-28 2019-01-18 新宇电缆集团股份有限公司 A kind of high soft antitorque robot cable
CN109411117A (en) * 2018-11-27 2019-03-01 天津亿鑫通科技股份有限公司 A kind of super soft twist resistant cable of Halogen and preparation method thereof
DE202020102564U1 (en) 2020-05-06 2020-05-28 Offcon GmbH Arrangement with torsion connections
DE102020112329A1 (en) 2020-05-06 2021-11-11 Offcon GmbH Arrangement with torsion connections
CN117198622A (en) * 2023-09-14 2023-12-08 安徽埃克森科技集团有限公司 Robot cable

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EP2019394B1 (en) 2010-06-02
ATE470226T1 (en) 2010-06-15

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