EP3025356B1 - Litzenleiter und verfahren zur herstellung von litzenleitern - Google Patents

Litzenleiter und verfahren zur herstellung von litzenleitern Download PDF

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Publication number
EP3025356B1
EP3025356B1 EP14811779.9A EP14811779A EP3025356B1 EP 3025356 B1 EP3025356 B1 EP 3025356B1 EP 14811779 A EP14811779 A EP 14811779A EP 3025356 B1 EP3025356 B1 EP 3025356B1
Authority
EP
European Patent Office
Prior art keywords
wires
stranded conductor
cross
inner wire
section
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.)
Active
Application number
EP14811779.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3025356A1 (de
Inventor
Markus Schill
Wolfgang Stadler
Yücel Sahiner
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.)
Leoni Kabel GmbH
Original Assignee
Leoni Kabel Holding GmbH
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 Leoni Kabel Holding GmbH filed Critical Leoni Kabel Holding GmbH
Priority to PL14811779T priority Critical patent/PL3025356T3/pl
Publication of EP3025356A1 publication Critical patent/EP3025356A1/de
Application granted granted Critical
Publication of EP3025356B1 publication Critical patent/EP3025356B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0036—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/02—Stranding-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or 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
    • H01B7/0009—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
    • H01B7/0045—Cable-harnesses
    • 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

Definitions

  • the invention relates to a stranded conductor comprising a number of individual wires, wherein a plurality of identically configured individual wires are arranged as outer wires around a central inner wire and wherein the individual wires form a composite which is enveloped by an insulation. Furthermore, the invention relates to a method for producing corresponding stranded conductors.
  • gussets gusset-shaped free spaces
  • the lowest possible weight in the stranded conductors used is desired or required, which is why a cross section for the stranded conductor is sought in these cases, which comes as close as possible to a circular shape and accordingly has as few and as small as possible gusset.
  • a cross section for the stranded conductor is sought in these cases, which comes as close as possible to a circular shape and accordingly has as few and as small as possible gusset.
  • Such a compressed stranded wire is for example from the DE 11 2010 004 176 T5 or even the GB 1 336 200 B refer to.
  • the present invention seeks to provide a compact stranded conductor with good bending fatigue resistance and a method for producing such a stranded conductor.
  • a corresponding stranded conductor comprises a number of individual wires, wherein a plurality of identically configured individual wires are arranged as outer wires around a central inner wire and wherein the individual wires form a single wire composite or short a composite, which is enveloped by an insulation.
  • External wires with a non-circular cross-section are used as outer wires, the extension of the outer wires starting from the inner wire increasing radially outward in cross-section.
  • the individual wires which are intended as outer wires for a corresponding stranded conductor, are prefabricated with a non-circular cross section and as such in particular arranged around a central inner wire or an inner layer of individual wires to form the stranded conductor and thus with an already non-circular cross section be stranded.
  • the single-wire composite and thus also the outer wires of the stranded conductor are not pressed in the finished stranded conductor, so are not subsequently deformed by compression or by compacting the single-wire composite of originally round individual wires in the non-circular geometry.
  • the non-circular cross section of the outer wires is chosen so that the given space or space is utilized as completely as possible and that the cross section of the single-wire composite is as circular as possible, at least in the peripheral region.
  • such a non-compressed composite of individual wires has a high resistance to alternating bending, which is advantageous for a large number of applications.
  • a high alternating bending resistance or bending fatigue resistance is understood here to mean that the stranded conductor can withstand relatively many bending change processes, that is to say exhibits low fatigue phenomena during a bending cycle stress.
  • Such a stranded conductor is used in particular as a super-thin line, in particular vehicle line.
  • the number of individual wires, which are arranged as outer wires around a central inner wire is advantageously adapted to the particular application.
  • this preferably consists of the one inner wire and six outer wires.
  • stranded conductors with a plurality of outer layers at least the outermost layer of the outer wires is formed with the non-circular cross-section.
  • the outer wires surrounded in this case, the inner wire indirectly with the interposition of one or more intermediate layers of individual wires, which are round or preferably as well as the expressed outer wires out of round.
  • the preformed individual wires have cross-sectional shapes such that the cross-section of the single-wire composite is as round as possible and thus comes as close as possible to a circle.
  • a cross-sectional shape at least approximated to a triangular cross-sectional shape is selected for the outer wires, the shape of an equilateral triangle being preferred.
  • the outer wires are then arranged such that viewed in cross section, a corner of each outer wire points radially inwards in the direction of the inner wire and thereby abuts virtually point-like on the inner wire or on the individual wire of the intermediate layer.
  • the outer wires and the inner wire thus substantially a point support is realized, due to which a high flexibility and high resistance to bending of the single-wire composite and ultimately the stranded conductor is given.
  • they are linear Contact zones formed.
  • the individual wires are formed approximately in the manner of a trapezoid, wherein in particular the oriented to the inner wire trapezoidal surface is concave and conforms to the rounding of the inner conductor.
  • a triangular cross-sectional shape is selected for the outer wires, in which the corners are rounded.
  • Such a cross-sectional shape can be more easily realized, among other things.
  • the sides of the triangular cross section are curved outwards and thus designed arcuate.
  • the outer wires touch each other quasi selectively, which in turn attracts a high flexibility and high resistance to bending of the single-wire composite.
  • the outer wires have a cross-sectional shape in the manner of a Reuleaux triangle with rounded corners.
  • a shaped cross-sectional shape is characterized by convexly outwardly curved side surfaces and rounded corners. Both at the side surfaces and at the corners, the individual wires are therefore only point-like (viewed in cross-section) on adjacent stranded conductors.
  • This embodiment is particularly advantageous in view of the desired high bending flexibility.
  • the outer wires lie substantially punctually on the inner wire and are also shaped and arranged such that between adjacent outer wires is also given in a good approximation, a point support.
  • the outer wires together form an outer layer enveloping and enclosing the inner wire, which has a substantially circular circumference when viewed in cross-section.
  • This outer layer is then preferably coated with an insulating sheathing or insulation, for example made of plastic, wherein the wall thickness the insulation due to the almost circular periphery of the outer layer in the circumferential direction is almost constant.
  • Corresponding stranded conductors are provided in particular for the motor vehicle sector and are accordingly preferably designed for this application.
  • the stranded conductors are, in particular, super-thin vehicle cables, for example so-called FLRY cables (nomenclature according to ISO 6722).
  • Typical and therefore preferred are stranded conductors, which consist of the central inner wire, several, in particular 6 outer wires (1 + 6 composite) and the insulation.
  • the outer wires are thus arranged in a single outer layer around the central inner wire and this outer layer is coated with the thin-walled insulation.
  • the composite of individual wires advantageously has a cross-sectional area of less than 2.5 mm 2 and in particular less than 1.5 mm 2 . Particularly common are especially with cross-sectional areas of 0.35 mm 2 , 0.75 mm 2 and 1 mm 2 , which are also preferably used here.
  • the stranded conductor expediently has a lay length which is preferably 10 mm to 30 mm.
  • Impact length is understood to be the axial length of the stranded conductor which is required for a 360 ° winding of a respective individual wire.
  • the lay length is significantly lower, in particular approximately by a factor of 2.
  • the lay length is also at least largely independent of the respective diameter of the composite of individual wires.
  • Stranded conductors of different diameters therefore have identical or at least comparable lay lengths, which are within the stated range.
  • the lay length varies with diameters. Investigations have shown that this shortened lay length is of particular advantage and an undesirable impact length Twisting the non-circular individual wires around their center axis from the desired rotational orientation is avoided. This ensures the defined, desired alignment of the individual wires in the composite.
  • the individual wires thus formed are preferably subjected to an annealing procedure (soft annealing) to ensure the desired flexural elastic properties of the individual wires.
  • an annealing procedure soft annealing
  • the individual wires are then stranded or stranded and finally provided with the insulation, for which example, an extruder of a Verlitzmaschine is immediately downstream.
  • a compression of the individual wires or the composite of individual wires and a further annealing procedure after the stranding is not made.
  • FIG. 1 sketched stranded conductor 2 is constructed from seven individual wires, wherein six individual wires are arranged as outer wires 4 around a central inner wire 6.
  • the inner wire 6 in this case has a circular cross-section and the outer wires 4 are positioned around this inner wire 6 in the manner of a common division.
  • the outer wires 4 are designed identically and have a cross-section which shows, to a good approximation, the shape of a Reuleaux triangle with rounded corners.
  • This cross-sectional shape is in FIG. 2 shown enlarged and shown for comparison purposes together with an equilateral triangle with a side length L.
  • the cross section of the outer wires 4 has rounded corners starting from a triangular shape.
  • the sides are arched outwards.
  • the cross-sectional shape of the outer wires 4 is constructed from two different circular segment shapes, wherein the corners of the Reuleaux triangular shape are each formed by a circular segment shape with a radius R E and wherein the sides of the Reuleaux triangle shape each having a circular segment shape with a Radius R S are formed.
  • the side length L is for example in the range of 0.25 mm - 0.6 mm, in particular about 0.4 mm.
  • the radius R S is approximately 10 times the radius R E and is, for example, 0.6 mm to 1 mm, in particular 0.8 mm.
  • the single-wire composite of outer wires 4 and the inner wire 6 is designed such that, viewed in cross-section, a corner of each outer wire 4 selectively applied to the inner wire 6 and that between adjacent outer wires 4 also a point support, so a punctual contact is given.
  • the outer wires 4 together form a closed outer layer 8, through which the inner wire 6 is completely enclosed.
  • the outer layer 8 further has, viewed in cross section, a circular circumference which is circular in a good approximation, but in each case a remaining gusset 10 is formed circumferentially in the intermediate region between two outer wires 4.
  • these gussets 10 are relatively small compared to a prior art stranded conductor in which outer wires having a circular cross section are disposed around an inner wire also having a circular cross section.
  • the stranded conductor 2 also has an outer layer surrounding insulation 12, which is usually applied by extrusion. Due to the selected cross-sectional shape of the outer wires 4 and consequently relatively small size of the gusset 10, the wall thickness 14 of the insulation 12 in the circumferential direction 16 seen in a good approximation consistent and can be set very thin in particular.
  • a stranded conductor 2 ' according to the prior art is also shown, in which the individual wire composite was pressed after the individual wires 4', 6 'had been stranded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Non-Insulated Conductors (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Ropes Or Cables (AREA)
EP14811779.9A 2013-11-06 2014-11-06 Litzenleiter und verfahren zur herstellung von litzenleitern Active EP3025356B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14811779T PL3025356T3 (pl) 2013-11-06 2014-11-06 Przewód licowy i sposób wytwarzania przewodów licowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310222529 DE102013222529A1 (de) 2013-11-06 2013-11-06 Litzenleiter und Verfahren zur Herstellung von Litzenleitern
PCT/EP2014/073973 WO2015067717A1 (de) 2013-11-06 2014-11-06 Litzenleiter und verfahren zur herstellung von litzenleitern

Publications (2)

Publication Number Publication Date
EP3025356A1 EP3025356A1 (de) 2016-06-01
EP3025356B1 true EP3025356B1 (de) 2017-01-11

Family

ID=52023462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14811779.9A Active EP3025356B1 (de) 2013-11-06 2014-11-06 Litzenleiter und verfahren zur herstellung von litzenleitern

Country Status (11)

Country Link
US (1) US9887022B2 (ko)
EP (1) EP3025356B1 (ko)
JP (1) JP6326504B2 (ko)
KR (1) KR101831668B1 (ko)
CN (1) CN105745722B (ko)
DE (1) DE102013222529A1 (ko)
HU (1) HUE031391T2 (ko)
PL (1) PL3025356T3 (ko)
PT (1) PT3025356T (ko)
RU (1) RU2642498C2 (ko)
WO (1) WO2015067717A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3211642A1 (de) * 2016-02-23 2017-08-30 LEONI Kabel Holding GmbH Datenkabel und litzenleiter
CN109979661A (zh) * 2019-05-10 2019-07-05 李秀利 一种便于拼接使用不易扯断的漆包线
CN114164692A (zh) * 2021-12-10 2022-03-11 合肥神马科技集团有限公司 一种三角股钢丝绳生产线

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US6307156B1 (en) * 1997-05-02 2001-10-23 General Science And Technology Corp. High flexibility and heat dissipating coaxial cable
CN2847464Y (zh) * 2005-10-11 2006-12-13 天津金山电线电缆股份有限公司 轨道交通用低烟无卤低毒机车车辆电缆
GB2435124B (en) * 2006-02-13 2008-01-02 Brand Rex Ltd Improvements in and Relating to Electrical Cables
RU64812U1 (ru) * 2006-08-04 2007-07-10 Закрытое акционерное общество "Завод "Людиновокабель" Токопроводящая жила
JP2008166141A (ja) * 2006-12-28 2008-07-17 Auto Network Gijutsu Kenkyusho:Kk 電線導体および絶縁電線
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KR101929582B1 (ko) 2012-04-19 2018-12-14 엘에스전선 주식회사 압축도체, 이를 포함하는 케이블 및 그 제조방법
CN202871327U (zh) * 2012-08-31 2013-04-10 上海福尔欣线缆有限公司 一种汽车用电池电线
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Also Published As

Publication number Publication date
DE102013222529A1 (de) 2015-05-07
PL3025356T3 (pl) 2017-12-29
CN105745722A (zh) 2016-07-06
JP2016539485A (ja) 2016-12-15
RU2016111940A (ru) 2017-12-11
WO2015067717A1 (de) 2015-05-14
KR101831668B1 (ko) 2018-02-23
RU2642498C2 (ru) 2018-01-25
PT3025356T (pt) 2017-04-11
US20160247602A1 (en) 2016-08-25
US9887022B2 (en) 2018-02-06
EP3025356A1 (de) 2016-06-01
JP6326504B2 (ja) 2018-05-16
KR20160083085A (ko) 2016-07-11
HUE031391T2 (en) 2017-07-28
CN105745722B (zh) 2018-03-23

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