EP1630825A2 - Conducteur électrique - Google Patents

Conducteur électrique Download PDF

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Publication number
EP1630825A2
EP1630825A2 EP05291643A EP05291643A EP1630825A2 EP 1630825 A2 EP1630825 A2 EP 1630825A2 EP 05291643 A EP05291643 A EP 05291643A EP 05291643 A EP05291643 A EP 05291643A EP 1630825 A2 EP1630825 A2 EP 1630825A2
Authority
EP
European Patent Office
Prior art keywords
wires
layer
conductor
diameter
core
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.)
Withdrawn
Application number
EP05291643A
Other languages
German (de)
English (en)
Other versions
EP1630825A3 (fr
Inventor
Ferdinand Grögl
Thomas Mann
Günter Lottner
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 EP1630825A2 publication Critical patent/EP1630825A2/fr
Publication of EP1630825A3 publication Critical patent/EP1630825A3/fr
Withdrawn legal-status Critical Current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
    • H01B7/0009—Details relating to the conductive cores
    • 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

Definitions

  • the invention relates to an electrical line having at least one electrical conductor, which has a non-metallic core designed as a tensile element, around which are arranged a completely closed layer forming metallic wires of good electrical conductivity material, which is insulated from are surrounded (EP 0 477 982 A2).
  • Such lines are used for example in motor vehicles, both as electrical conductors and as heating conductors, for example in the seats of passenger cars. They must be very bendable and tensile and also be able to withstand high mechanical loads. This already applies to their packaging, their further processing and their laying, but especially during operation. The lines are constantly exposed in the vehicle vibrations and vibrations and possibly also stone chipping. Another possible field of application is the medical technology, in which in addition to good flexibility in particular also low weight and small dimensions are of importance.
  • EP 1 089 299 A2 discloses a tension-resistant conductor in which a plurality of wires made of electrically highly conductive material are wound around a central, tensile core. Over the wires a common insulation is attached.
  • the high-tensile core consists of several stranded threads that are stranded together and embedded in metallic base material that fills all the spaces between the threads and surrounds them as a whole.
  • Such a tensile core is not only expensive to produce, but also relatively stiff. As a result, the conductor itself is limited in its flexibility and it has a reduced alternating bending strength.
  • U 1 describes a flexible electrical line which has at least one electrical conductor which consists of a tensile, non-metallic element and a multiplicity of metallic wires arranged around it and of electrically highly conductive material.
  • the metallic wires are insulated.
  • the tensile element is a loose composite of a large number of aramid threads whose cross section corresponds to the cross section of a single metallic wire.
  • This cable is highly flexible and tensile. It also has sufficient bending resistance. The tensile element is easily deformed in the radial direction and flexible overall, so that the line is particularly well suited for connecting a crimped connector.
  • a conductor which has a bundle or braid of aramid fibers as a tensile core.
  • metallic wires are arranged in close proximity to one another.
  • the ladder is surrounded by insulation.
  • the wires must have a relatively large cross-section. As a result, and by the compression of the conductor is relatively stiff and he has a low bending resistance.
  • the invention has for its object to make the line described above so that their head has the smoothest possible outer peripheral surface and is also flexible and resistant to bending.
  • This conductor has with its two layers of metallic wires for all applications sufficient electrically conductive cross-section.
  • the wires are twisted in a known technique around the core or first layer and left in position without additional treatment.
  • the conductor or a line equipped with the same is therefore highly flexible and resistant to bending. Since at least the wires of the second layer of the conductor are very thin, arise between the individual wires only insignificant dents (gusset) in the surface of the conductor.
  • the thickness of the applied to the conductor insulation can be kept small, with a correspondingly low cost of materials.
  • the outer diameter of the line or the insulated conductor can thus also be kept small. Furthermore, the weight of the line per unit length is reduced.
  • the number of wires with respect to the core of substantially smaller diameter must be sufficiently high. This is achieved, for example, when the diameter of the core is larger than the diameter of a wire of the second layer by a factor of "2" to "3".
  • the second layer of wires should be arranged at least 12 wires, with a corresponding diameter of the core.
  • the conductor of the tensile core and two concentric wire layers is also advantageous when three or more such conductors are stranded into a bundle around which a common insulation is applied. Due to the smooth outer surface of the ladder they are very close together. It can also be used in such a bundle insulation with reduced wall thickness, because their contact surfaces on the bundle of conductors i. w. are smooth.
  • the line L according to FIGS. 1 and 2 has an electrical conductor with a central tensile element formed, consisting of non-metallic material core 1, which extends over the entire length of the line L.
  • the core 1 is preferably made of aramid. It is designed in this embodiment as a multifilament thread and may have a diameter which is, for example, between 0.12 mm and 0.37 mm.
  • the individual filaments of such a multifilament yarn have a thickness of about 10 microns.
  • the core 1 is a substantially circular, well-bendable structure which allows a concentric structure of the conductor 4 of the line L.
  • the core 1 To the core 1 are preferably made of copper existing metallic wires 2, lying close together in a first layer. Due to the close-lying wires 2 results in a nearly 100% optical coverage of the core 1.
  • the wires 2 have a circular cross-section with a diameter which is preferably much smaller than the diameter of the core 1. This results in a very uniform, quiet outer surface for the first layer of wires 2.
  • the diameter of the core 1 is larger than the diameter of a wire 2 by a factor of "2" to "3", for example.
  • a second layer of metallic wires 3 is wound around, which likewise preferably consist of copper. They give a nearly 100% optical coverage of the first layer.
  • the wires 3 have a circular cross section with a diameter which is also substantially smaller than the diameter of the core 2.
  • the diameter of the core 1 is also here, for example, by the factor “2" to "3" greater than the diameter of a wire 3.
  • the wires 3 of the second, outer layer should be deliberately made so thin that a nearly smooth outer Surface of the second layer and thus the conductor 4 total results.
  • the recesses 5 (FIG. 3) lying between the individual wires 3, which are also referred to as gussets, are thus so flat that they hardly appear optically. Its depth is about 0.02 mm for a diameter of the wires 3 of 0.1 mm and 0.01 mm for a diameter of 0.05 mm. It should be present with preference at least 12 wires 3 in the second layer of the conductor 4.
  • the wires 2 and 3 of the two wound around the core 1 of the conductor 4 layers thereof - as already mentioned - preferably made of copper. They can be blank. However, it is also possible to tin, silver or nickel them.
  • the wires 2 and 3 are preferably the same diameter. But they can also have different diameters.
  • the wires 2 and 3 are preferably roped in the same direction and with the same lay length around the core 1 on the one hand and the first layer on the other hand in so-called "unilay technique".
  • the lay length of the wires 3 in the second layer should be in the range between 7 x D and 11 x D, with the diameter D of the conductor 4 in total.
  • the winding direction and lay length in the two layers of wires 2 and 3 can also be different.
  • an insulation 6 is arranged, the wall thickness of which can be kept small because of the almost smooth surface of the second layer of wires 3, in accordance with the electrical voltage for which the line is to be used.
  • the insulation 6 may consist of different materials depending on the desired electrical, thermal and / or mechanical properties. These materials must be usable for extruding small wall thicknesses. Suitable materials include polyolefins such as polypropylene, and thermoplastic elastomers. Also, radiation-crosslinkable polyolefin-based materials such as polyethylene, and high-temperature materials such as polytetrafluoroethylene and polyetheretherketone are usable.
  • the wall thickness of the insulation 6 should be greater than the diameter of a wire 3 of the second layer.
  • the core 1 is designed as a multifilament thread of aramid. It has a diameter of 0.12 to 0.13 mm.
  • the core 1 is surrounded in a first layer of 10 wires 2 of tinned copper with a diameter of 0.05 mm.
  • the wires 3 of the second layer are made as well as the wires 2.
  • the conductor 4 thus has a diameter lying between 0.32 mm and 0.34 mm. Its geometric cross section is 0.05 mm 2 . With a wall thickness of the insulation 6 of 0.12 mm results in a diameter of the line L between 0.56 mm and 0.60 mm.
  • At least three conductors 4 consisting of core 1 and the two layers of wires 2 and 3 can advantageously be stranded together as shown in FIG. 4 to form a bundle B, which is surrounded by a common insulation 7.
  • Their material may correspond to the material of the insulation 6. Even with the bundle B makes the almost smooth outer surface of the conductor 4 advantageously noticeable. They are very much so close together and the wall thickness of the insulation 7 can then be minimized.
  • the line L has at least one insulated conductor 4 with the structure described above. Also, two or more such insulated conductors 4 may be included in a conduit L surrounded by a common jacket of insulating material such as polyurethane. Such lines are usable, for example, as sensor lines in the automotive industry.

Landscapes

  • Insulated Conductors (AREA)
  • Non-Insulated Conductors (AREA)
  • Communication Cables (AREA)
EP05291643A 2004-08-27 2005-08-01 Conducteur électrique Withdrawn EP1630825A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410041452 DE102004041452A1 (de) 2004-08-27 2004-08-27 Elektrische Leitung

Publications (2)

Publication Number Publication Date
EP1630825A2 true EP1630825A2 (fr) 2006-03-01
EP1630825A3 EP1630825A3 (fr) 2008-07-09

Family

ID=35414765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291643A Withdrawn EP1630825A3 (fr) 2004-08-27 2005-08-01 Conducteur électrique

Country Status (2)

Country Link
EP (1) EP1630825A3 (fr)
DE (1) DE102004041452A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2647015A1 (fr) * 2010-11-29 2013-10-09 Yazaki Corporation Fil conducteur isolé électrique toronné
CN113454378A (zh) * 2019-02-22 2021-09-28 山特维克原料技术德国公开股份有限公司 管结构和用于制造这种管结构的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006015878B4 (de) * 2006-04-05 2015-12-17 Nexans Flexible elektrische Steuerleitung
EP2096645B1 (fr) 2008-02-26 2010-09-29 Nexans Conducteur électrique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477982A2 (fr) 1990-09-28 1992-04-01 Sumitomo Electric Industries, Limited Fil conducteur pour faisceau de câblage
EP1089299A2 (fr) 1999-09-30 2001-04-04 Yazaki Corporation Conducteur à haute résistance mécanique et à faible poids et conducteur tordu et comprimé
DE20118713U1 (de) 2001-11-16 2002-01-17 Nexans Flexible elektrische Leitung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193429A (en) * 1937-01-06 1940-03-12 Anaconda Wire & Cable Co Conductor with spun glass core
US2900437A (en) * 1954-11-04 1959-08-18 Kaiser Aluminium Chem Corp Portable electric cord
US3717720A (en) * 1971-03-22 1973-02-20 Norfin Electrical transmission cable system
DE2339676C3 (de) * 1973-08-04 1979-08-16 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Hochspannungs-Freileitungsseil zur elektrischen Energieübertragung sowie Verfahren zu dessen Herstellung
JPS63126118A (ja) * 1986-11-14 1988-05-30 株式会社　メツクラボラトリ−ズ 電線
ATE71766T1 (de) * 1987-04-13 1992-02-15 Schweizerische Isolawerke Nachrichten-oder steuerkabel mit tragelement.
JPH066115B2 (ja) * 1987-08-27 1994-01-26 新技術事業団 生体内埋込用電極
CA2016130A1 (fr) * 1989-05-04 1990-11-04 Larry W. Oden Cordon souple a ame monofilament de fibre organique a module eleve
US6140589A (en) * 1997-04-04 2000-10-31 Nextrom, Ltd. Multi-wire SZ and helical stranded conductor and method of forming same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0477982A2 (fr) 1990-09-28 1992-04-01 Sumitomo Electric Industries, Limited Fil conducteur pour faisceau de câblage
EP1089299A2 (fr) 1999-09-30 2001-04-04 Yazaki Corporation Conducteur à haute résistance mécanique et à faible poids et conducteur tordu et comprimé
DE20118713U1 (de) 2001-11-16 2002-01-17 Nexans Flexible elektrische Leitung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2647015A1 (fr) * 2010-11-29 2013-10-09 Yazaki Corporation Fil conducteur isolé électrique toronné
EP2647015A4 (fr) * 2010-11-29 2014-12-24 Yazaki Corp Fil conducteur isolé électrique toronné
CN113454378A (zh) * 2019-02-22 2021-09-28 山特维克原料技术德国公开股份有限公司 管结构和用于制造这种管结构的方法
CN113454378B (zh) * 2019-02-22 2023-07-28 山特维克原料技术德国公开股份有限公司 管结构和用于制造这种管结构的方法

Also Published As

Publication number Publication date
EP1630825A3 (fr) 2008-07-09
DE102004041452A1 (de) 2006-03-02

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