EP1398799B1 - Câble électrique pour la connexion de charges électriques mobiles - Google Patents

Câble électrique pour la connexion de charges électriques mobiles Download PDF

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Publication number
EP1398799B1
EP1398799B1 EP03292034A EP03292034A EP1398799B1 EP 1398799 B1 EP1398799 B1 EP 1398799B1 EP 03292034 A EP03292034 A EP 03292034A EP 03292034 A EP03292034 A EP 03292034A EP 1398799 B1 EP1398799 B1 EP 1398799B1
Authority
EP
European Patent Office
Prior art keywords
layer
conductors
wires
cable
metallic
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
EP03292034A
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German (de)
English (en)
Other versions
EP1398799A3 (fr
EP1398799A2 (fr
Inventor
Ferdinand Grögl
Andreas Rietz
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
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Filing date
Publication date
Application filed by Nexans SA filed Critical Nexans SA
Publication of EP1398799A2 publication Critical patent/EP1398799A2/fr
Publication of EP1398799A3 publication Critical patent/EP1398799A3/fr
Application granted granted Critical
Publication of EP1398799B1 publication Critical patent/EP1398799B1/fr
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
    • H01B7/04—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 an electrical cable for connection of movable electrical consumers, which has at least two insulated conductors consisting of stranded wires, which have a firmly interconnected, superimposed layers existing insulation, of which the inner, applied to the conductor Layer is softer than the outer layer, in which the wires are surrounded by a common, between the wires existingassienzwickel filling inner sheath of insulating material and in which an electrical shield and an outer sheath of insulating material are present ( DE 100 36 610 A1 ).
  • Such cables are intended to be used as flexible cables for connecting portable devices to a voltage or signal source.
  • portable devices may be, for example, cranes, machine tools and robots.
  • the cables must be able to withstand high mechanical loads, with constant bending fatigue strength and flexibility over a wide temperature range, for example between -40 ° C and + 80 ° C.
  • the cores are surrounded by a loose, serving as a filling inner sheath of polyvinyl chloride (PVC) or polyurethane (PUR).
  • PVC polyvinyl chloride
  • PUR polyurethane
  • the wires are thus relatively loose and can be easily damaged during continuous bending around the associated cable. They are also with such inner shells either not halogen-free and contain leaded Stabilizers (PVC) or non-flame resistant (PUR), so that in the event of fire, consequential damage may occur or the cables may no longer be functional.
  • the inner, softer layer of the core insulation is made of a polypropylene-containing rubber-elastic material, while the outer layer is constructed of a polypropylene-based material.
  • the wires are thus resistant to bending even with frequent bending of the cable. They also have a good lubricity, which supports their bending fatigue strength.
  • the material of the inner shell and the nature and arrangement of the electric screen is mentioned in the document nothing.
  • the invention has for its object to improve the cable described above, in particular with respect to its flex life and its torsional ability, with simplified assembly.
  • This cable has a permanently stable bending fatigue strength, so that it is particularly suitable for long travel distances and frequently changing bending directions. Such requirements are often given in machine tools.
  • the cores themselves are constructed with their special two-layer insulation with an inner, softer layer for frequently changing bending directions. Overall, they are immovably fixed in the inner casing in the radial direction, which firmly surrounds the wires like a kind of corset and thus effectively protects them from the mechanical forces that occur during bending.
  • the separating layer applied between the cores and the inner sheath ensures that the inner sheath is movable relative to the cores, so that the good bending behavior of the cable is not impaired. Rather, there is a good compensation movement of the wires between compression and compression zones.
  • the good bending behavior of the cable is also supported by the construction of the inner shell of two differently hard, firmly interconnected layers, of which the softer layer faces the wires.
  • This construction of the inner shell also allows a particularly simple assembly of the cable. If necessary, only the outer, harder layer of the inner shell needs to be severed. He can then be easily demolished at the point of separation without risk of damage to the wires, because between the same and the inner shell, the release layer is present.
  • the inner jacket has, regardless of the number of wires, an approximately circular peripheral surface. It thus provides a firm and uniform underlay for the electrical shield of the cable and its overlying outer jacket made of insulating material.
  • the electric screen consisting of at least one completely closed metallic layer and an adjacent umseilung / braiding is electrically sealed even at higher frequencies. It can therefore emanate from the cable no interference and the cable itself is effectively protected against external fields.
  • Fig. 1 a cross-section through a cable according to the invention in a schematic representation.
  • Fig. 2 one opposite Fig. 1 supplemented embodiment of the cable.
  • Fig. 3 a cross-section of usable in the cable electric screen in an enlarged view.
  • the electric cable K after Fig. 1 has two stranded wires 1.
  • Each wire 1 consists of a metallic electrical conductor 2, which is surrounded by an insulation, which is composed of two superimposed layers 3 and 4.
  • the inner, applied to the conductor 2 layer 3 is made of a softer material than the outer layer 4. Both layers 3 and 4 are firmly connected.
  • the wires 1 can serve for the transmission of energy or signals. They can therefore have different dimensions.
  • the wires 1 and their copper conductors preferably 2 are shown in this sense only generally valid.
  • the layers 3 and 4 of the core insulation are preferably made of materials that connect directly to each other when applying the same to the conductor 2. This can be achieved for example by extrusion in tandem or by coextrusion of the two layers 3 and 4.
  • the inner, softer layer 3 preferably has a higher proportion of elastic material than the outer layer 4. This can basically be rubber-elastic material, such as ethylene-propylene rubber. However, it can also be an elastomer or a material with elastomer-like properties.
  • the wires 1 are surrounded by a release layer 5, which consists for example of stearate or cellulose. Both materials can be in powder form and applied to the insulation of the wires 1, for example, by electrostatic charging. For this purpose, the respective powder can be charged itself. But it is also possible to charge the wires 1 electrostatically. The powder can be applied in this way to form the release layer 5 very evenly on the wires 1.
  • an inner sheath 6 made of insulating material, which is produced by extrusion in conventional technology.
  • the material of the separation layer 5 preferably connects to the inner shell 6, so that the release layer 5 in a possible removal of the Inner sheath 6 is removed with.
  • the material of the separating layer 5 during application of the inner shell 6 is influenced so that the same gets good sliding properties.
  • materials for the inner sheath 6 are, for example, unleaded PVC or a halogen-free Polyolefincompound on the basis of polyethylene or a copolymer thereof.
  • the inner shell 6 should preferably be constructed so elastic that it is compressible in particular when twisting the cable K.
  • the inner shell 6 consists of two superimposed layers 6a and 6b, which firmly connect to each other during application. This can again be achieved by tandem or co-extrusion. Similar to the insulation of the wires 1, the inner layer 6a lying on the separating layer 5 or the wires 1 is softer than the outer layer 6b. It also advantageously has a lower strength than the outer layer 6b. This can be achieved again by appropriate dosage of elastic materials.
  • the outer layer 6b can also be made foamed to improve its compressibility and thus the elastic behavior of the inner shell 6.
  • Such inner jacket 6 can be easily deducted from the wires 1, for example, for connection purposes. It needs - as already mentioned - only the outer layer 6b to be cut with a round cut. The inner shell 6 can then be torn off, including the separating layer 5 at the separation point.
  • the inner shell 6 has, regardless of the number of cores 1 and their more or less uniform envelope an approximately circular peripheral surface.
  • the peripheral surface is thus ideally suited as a contact surface for further layers of the cable K.
  • an electric screen 7 Over the inner shell 6 is an electric screen 7, the structure of, for example Fig. 3 evident.
  • the screen 7 is surrounded by an outer sheath 8 of insulating material, which consists for example of polyurethane. Between screen 7 and outer sheath 8 may be arranged with the same bonded separating layer, for example, a longitudinally overlapping overlapped sliver.
  • the inner shell 6 may have a defined color, which is clearly distinguishable from the colors of the other elements of the cable K. In itself identically constructed cable K can then easily assigned to certain users and / or specific uses, if their inner coats 6 are colored differently.
  • the cable K has more than two wires 1, for example five according to Fig. 2 , then they are suitably stranded around a central support 9, which serves as a support element.
  • the carrier 9 may be a thread or a cord made of plastic. It can also be equipped with a tensile element or self-tensioning.
  • the over the wires 1 lying structure of the cable K after Fig. 2 The same applies as for the cable K after Fig. 1 ,
  • the screen 7 has according to Fig. 3 a band 10, which consists of at least one, with a plastic carrier 11 firmly connected metallic layer 12.
  • a nonwoven fabric is preferably used, which can yield elastically and in particular withstands bending and torsional stresses without risk of damage.
  • the nonwoven is "metallized" to form the layer 12, for example.
  • the band 10 can be laid around the inner casing 6 in a longitudinally running manner with overlapping edges so as to produce a substantially tubular closed casing.
  • a stranding or braiding of metallic wires 13 is attached above the belt 10 with the outer metal layer 12, a stranding or braiding of metallic wires 13 is attached.
  • the wires 13 are preferably made of copper.
  • the Umseilung / braiding should have an optical coverage> 90%.
  • the very narrow gap in the overlap region of the band 10 should be completely electrically tight, it is expedient to use a band whose plastic carrier 11 carries a metallic layer 12 on both sides. Again, a nonwoven fabric for the plastic carrier 11 is preferably used.
  • the band 10 is preferably arranged between two layers of wires 13, which accordingly form two umseilungen or braids in the screen 7. The screen thus receives an increased transverse conductivity.
  • the metallic layers 12 are preferably made of copper.
  • wires 13 for example, tinned copper wires are used.

Landscapes

  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Cable Accessories (AREA)

Claims (8)

  1. Câble électrique pour la connexion de charges électriques mobiles, qui présente au moins deux fils câblés l'un à l'autre constitués de conducteurs isolés, qui présentent une isolation constituée de deux couches superposées connectées fixement l'une à l'autre, dont la couche interne, s'appliquant contre le conducteur, est plus souple que la couche extérieure, les fils étant entouré d'une gaine intérieure commune en matériau isolant remplissant le coin extérieur prévu entre les fils, et un blindage électrique ainsi qu'une gaine extérieure en matériau isolant étant prévus,
    caractérisé en ce que
    - une couche de séparation (5) est prévue entre les fils (1) et la gaine intérieure (6), laquelle garantit une mobilité relative entre les fils (1) et la gaine intérieure (6),
    - la gaine intérieure (6) se compose de deux couches (6a, 6b) superposées connectées fixement l'une à l'autre, dont la couche interne (6a) tournée vers les fils (1) est plus souple que la couche extérieure (6b),
    - la gaine intérieure (6) a une surface périphérique approximativement ronde circulaire et s'applique fixement contre la couche de séparation (5) ou les fils (1), et
    - le blindage électrique (7) disposé par-dessus la gaine intérieure (6) se compose d'au moins une couche métallique (12) fermée essentiellement tubulaire et d'une enveloppe de câble ou d'un tressage s'appliquant sur celle-ci, constitué(e) de fils métalliques (13), la gaine extérieure (8) étant disposée sur le blindage (7).
  2. Câble selon la revendication 1, caractérisé en ce que la couche de séparation (5) se compose de stéarate.
  3. Câble selon la revendication 1, caractérisé en ce que la couche de séparation (5) se compose de cellulose.
  4. Câble selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    - la couche métallique (12) est connectée fixement à un support en plastique (11) pour former une bande (10), qui est façonnée autour de la gaine intérieure (6) avec ses bords se chevauchant de telle sorte que la couche métallique (12) se trouve à l'extérieur, et
    - les fils métalliques (13) sont montés sur la bande (10).
  5. Câble selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    - deux couches métalliques sont connectées fixement à un support en plastique (11) pour former une bande, chacun sur un côté de celui-ci, et
    - la bande (10) est montée entre deux couches façonnées autour de la gaine intérieure (6), constituée de fils métalliques avec les bords se chevauchant.
  6. Câble selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le support en plastique (11) est un voile.
  7. Câble selon l'une quelconque des revendications 1 à 6, caractérisé en ce que dans le cas de trois fils ou plus (1), un support central (9) en matériau isolant est prévu, autour duquel sont câblés les fils (1) .
  8. Câble selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la gaine intérieure (6) a une couleur définie nettement visible.
EP03292034A 2002-09-12 2003-08-18 Câble électrique pour la connexion de charges électriques mobiles Expired - Lifetime EP1398799B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10242254A DE10242254A1 (de) 2002-09-12 2002-09-12 Elektrisches Kabel zum Anschluß von bewegbaren elektrischen Verbrauchern
DE10242254 2002-09-12

Publications (3)

Publication Number Publication Date
EP1398799A2 EP1398799A2 (fr) 2004-03-17
EP1398799A3 EP1398799A3 (fr) 2004-12-08
EP1398799B1 true EP1398799B1 (fr) 2009-09-30

Family

ID=31724671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292034A Expired - Lifetime EP1398799B1 (fr) 2002-09-12 2003-08-18 Câble électrique pour la connexion de charges électriques mobiles

Country Status (4)

Country Link
US (1) US6825419B2 (fr)
EP (1) EP1398799B1 (fr)
AT (1) ATE444559T1 (fr)
DE (2) DE10242254A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1589541B1 (fr) * 2004-04-19 2007-05-30 Nexans Câble électrique flexible de commande et de puissance
DE102005022190B3 (de) * 2005-05-13 2006-10-12 Koch, Ulrike Energie-Bus-Kabel
DE102006036621A1 (de) * 2005-09-22 2007-03-29 Hew-Kabel/Cdt Gmbh & Co. Kg Hochflexible geschirmte elektrische Datenleitung
US7468489B2 (en) * 2006-04-24 2008-12-23 Commscope, Inc. Of North Carolina Cable having internal identifying indicia and associated methods
DE102006025269A1 (de) * 2006-05-31 2007-12-06 Nexans Flexible elektrische Leitung
US7804029B1 (en) * 2008-12-05 2010-09-28 The United States Of America As Represented By The United States Department Of Energy Electromagnetic wrap
US11336058B2 (en) * 2013-03-14 2022-05-17 Aptiv Technologies Limited Shielded cable assembly
JP2015130326A (ja) * 2013-12-10 2015-07-16 デルファイ・テクノロジーズ・インコーポレーテッド 遮蔽ケーブルアセンブリ
EP3109865B1 (fr) 2013-12-20 2021-11-24 LEONI Kabel GmbH Cable hybride et utilisation d'un tel cable hybride
CN105304191A (zh) * 2014-06-25 2016-02-03 江苏海达电缆有限公司 一种改进型防水电缆
DE102014223119B4 (de) * 2014-11-12 2021-01-28 Leoni Kabel Gmbh Datenkabel sowie Verfahren zur Herstellung eines Datenkabels
EP3142125B1 (fr) * 2015-09-09 2021-05-05 Lapp Engineering AG Cable
CN105390190B (zh) * 2015-12-14 2017-03-29 江苏上上电缆集团有限公司 一种工业机器人用电缆及其制造方法
DE102016110571A1 (de) * 2016-06-08 2017-12-14 Coroplast Fritz Müller Gmbh & Co. Kg "Koaxiale elektrische Leitung für automatisierbare Verarbeitungsprozesse"
CN109243687A (zh) * 2018-08-31 2019-01-18 贵州新曙光电缆有限公司 一种用于地下铺设的电缆
DE102019103123A1 (de) * 2019-02-08 2020-08-13 Tesa Se Thermisch erweichbares Klebeband und Verfahren zum Ummanteln von langgestrecktem Gut insbesondere Leitungen
CN112037995B (zh) * 2020-08-31 2022-04-08 安徽国信电缆科技股份有限公司 一种交联聚乙烯绝缘阻燃聚氯乙烯护套变频电力电缆

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151234A1 (de) * 1981-12-21 1983-06-30 Siemens AG, 1000 Berlin und 8000 München Flexible elektrische leitung
DE3326986A1 (de) * 1983-07-27 1985-02-07 kabelmetal electro GmbH, 3000 Hannover Mehradriges flexibles elektrisches energiekabel
DE19717645C2 (de) * 1997-04-25 2001-01-18 Daetwyler Ag Altdorf Keramisierbare flammwidrige Zusammensetzung, Verfahren zur Herstellung und deren Verwendung
DE19729646C2 (de) * 1997-07-10 2001-08-16 Alcatel Sa Elektrisches Kabel
ES2178402T3 (es) * 1998-02-27 2002-12-16 Pirelli Kabel & Systeme Gmbh Cable de energia y control flexible para ambientes con un nivel sonoroelevado.
DE29808657U1 (de) * 1998-05-14 1999-08-12 Siemens Ag Elektrisches Signalübertragungskabel
DE10036610A1 (de) * 2000-07-27 2002-02-07 Alcatel Sa Flexible elektrische Leitung für Schleppketten
DE50104109D1 (de) * 2001-06-15 2004-11-18 Nexans Kabel zur Übertragung elektrischer Signale

Also Published As

Publication number Publication date
ATE444559T1 (de) 2009-10-15
DE10242254A1 (de) 2004-03-25
EP1398799A3 (fr) 2004-12-08
DE50311959D1 (de) 2009-11-12
US20040050582A1 (en) 2004-03-18
US6825419B2 (en) 2004-11-30
EP1398799A2 (fr) 2004-03-17

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