EP1506553B1 - Flexible band or flat cable and method of manufacturing - Google Patents

Flexible band or flat cable and method of manufacturing Download PDF

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Publication number
EP1506553B1
EP1506553B1 EP03706514A EP03706514A EP1506553B1 EP 1506553 B1 EP1506553 B1 EP 1506553B1 EP 03706514 A EP03706514 A EP 03706514A EP 03706514 A EP03706514 A EP 03706514A EP 1506553 B1 EP1506553 B1 EP 1506553B1
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EP
European Patent Office
Prior art keywords
flat cable
band
cable according
electric current
binder
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
EP03706514A
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German (de)
French (fr)
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EP1506553A1 (en
Inventor
Denis Reibel
Horst Kober
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP1506553A1 publication Critical patent/EP1506553A1/en
Application granted granted Critical
Publication of EP1506553B1 publication Critical patent/EP1506553B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0838—Parallel wires, sandwiched between two insulating layers
    • 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
    • H01B7/08—Flat or ribbon 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

Definitions

  • the invention relates to a flexible ribbon or flat cable consisting of at least one embedded between at least two nonwoven fabric layers signal conductor.
  • US Pat. No. 5,744,756 discloses a cable insulated with melt-blown microfibers.
  • the object of the invention has been found to provide a simple and inexpensive to manufacture, flexible ribbon or flat cable.
  • the object is achieved by a flexible ribbon cable or flat cable comprising at least one electrical conductor embedded between at least two nonwoven fabric layers and provided with an insulating layer, the nonwoven fabric layers comprising only polyester, polyamide, polyolefin, syndiotactic polystyrene, polysulfone and / or glass fibers and are interconnected by a binder.
  • the band or flat cables according to the invention also show a dielectric strength and a dimensional stability in accordance with the requirements of the industry, even without the use of polyaromatic amides.
  • electrical conductors with different cross-sections are present in the ribbon or flat cables.
  • the electrical conductors advantageously have a thickness of 5 to 200 microns and the distance from each other is ⁇ its thickness.
  • the pitch of the signal conductors to each other 1.25; 1.27; 2.5 or 2.54 mm.
  • Flame retardants are preferably contained in the strip or flat cable according to the invention for improving the flame resistance, which are introduced either together with the binder or during nonwoven laying.
  • leather fibers are particularly preferably contained, which are in particular leather fiber residues of the manufacture of chrome leather.
  • the invention further relates to a method for producing a ribbon or flat cable, wherein nonwoven fabrics are used with an air permeability of 20 to 8000 mm / s at a pressure difference of 200 Pa, between which at least one signal conductor is introduced and connected with a binder.
  • the binder is applied to the nonwoven fabric layers in liquid, powdery or fibrous form or as a film.
  • the binders used according to the invention are thermoplastic polymers such as, for example, polyolefins, polyesters, polyimides, polyamides, polyurethanes, polyacrylates or nitrilobutyl rubber, or crosslinkable systems such as, for example, polyurethanes, epoxy resin systems or UV-crosslinkable products.
  • thermoplastic polymers such as, for example, polyolefins, polyesters, polyimides, polyamides, polyurethanes, polyacrylates or nitrilobutyl rubber
  • crosslinkable systems such as, for example, polyurethanes, epoxy resin systems or UV-crosslinkable products.
  • the ribbon or flat cable according to the invention are used for wiring in vehicles or household electrical appliances.
  • a flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is produced by laminating between the spunbonded nonwovens the electrical signal conductors having a thickness of 35 ⁇ m with a spacing of the signal conductors from each other of 2.5 mm with the aid of a copolyamide adhesive tape at 120 ° C. ,
  • a flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is prepared by powdering the spunbond webs with a blend of a copolyamide and an epoxy, laying several electrical signal conductors 35 ⁇ m thick with a 2.54 mm pitch of the signal conductors to each other and laminated at 160 ° C.
  • a flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is prepared by powdering the spunbonded nonwoven fabrics with a polyurethane hot melt adhesive, laying electrical signal conductors 35 ⁇ m thick with the signal conductors spaced 2.5 mm apart and at 165 ° C laminated.
  • a flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is prepared by powdering the spunbonded nonwoven fabrics with a mixture of a copolyester and an epoxy resin, laying a plurality of electrical signal conductors having a thickness of 30 ⁇ m with a pitch of the signal conductors of 2.54 mm to each other and laminated at 175 ° C.

Landscapes

  • Insulated Conductors (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

A flexible ribbon or flat cable which is made of at least one electric current conductor provided with an insulating layer and embedded between at least two non-woven fabric layers. The non-woven fabric layers are made purely of polyester, polyamide, polyolefin, syndiotactic polystyrene, polysulphone and/or glass fibers and are joined together by means of a binding agent.

Description

Die Erfindung betrifft ein flexibles Band- oder Flachkabel bestehend aus mindestens einem zwischen mindestens zwei Vliesstoffschichten eingebetteten Signalleiter.The invention relates to a flexible ribbon or flat cable consisting of at least one embedded between at least two nonwoven fabric layers signal conductor.

Aus dem Dokument US-A 5,049,435 sind flexible Leiterplatten bekannt, die mit aus polyaromatischen Amiden bestehenden Vliesstoffen verstärkt sind und als Flachkabel eingesetzt werden können. Die aus polyaromatischen Amiden bestehenden Vliesstoffe werden dazu mit einem hitze- und/oder lichthärtbaren Harz imprägniert.From the document US-A 5,049,435 flexible printed circuit boards are known which are reinforced with non-woven fabrics consisting of polyaromatic amides and can be used as flat cables. The nonwovens consisting of polyaromatic amides are impregnated with a heat- and / or photocurable resin for this purpose.

Weiterhin ist aus dem Dokument US-A 5,744,756 ein mit schmelzgeblasenen Mikrofasern isoliertes Kabel bekannt.Furthermore, US Pat. No. 5,744,756 discloses a cable insulated with melt-blown microfibers.

Die Erfindung hat sich die Aufgabe gestellt, ein einfach und kostengünstig herzustellendes, flexibles Band- oder Flachkabel anzugeben.The object of the invention has been found to provide a simple and inexpensive to manufacture, flexible ribbon or flat cable.

Erfindungsgemäß wird die Aufgabe durch ein flexibles Band- oder Flachkabel gelöst, dass aus mindestens einem zwischen mindestens zwei Vliesstoffschichten eingebetteten und mit einer Isolierschicht versehenen elektrischen Stromleiter, wobei die Vliesstoffschichten lediglich aus Polyester-, Polyamid-, Polyolefin-, syndiotaktischen Polystyren-, Polysulfon- und/oder Glasfasern bestehen und durch ein Bindemittel miteinander verbunden sind. Überraschenderweise zeigen die verbindungsgemäßen Band- oder Flachkabel auch ohne Verwendung von polyaromatischen Amiden eine Durchschlagsfestigkeit und eine Dimensionsstabilität gemäß den Anforderungen der Industrie.According to the invention, the object is achieved by a flexible ribbon cable or flat cable comprising at least one electrical conductor embedded between at least two nonwoven fabric layers and provided with an insulating layer, the nonwoven fabric layers comprising only polyester, polyamide, polyolefin, syndiotactic polystyrene, polysulfone and / or glass fibers and are interconnected by a binder. Surprisingly, the band or flat cables according to the invention also show a dielectric strength and a dimensional stability in accordance with the requirements of the industry, even without the use of polyaromatic amides.

Vorzugsweise sind in den Band- oder Flachkabeln elektrische Stromleiter mit verschiedenen Querschnitten vorhanden. Die elektrischen Stromleiter weisen vorteilhafterweise eine Dicke von 5 bis 200 µm auf und der Abstand voneinander ist ≥ ihrer Dicke. Vorteilhafterweise beträgt das Rastermaß der Signalleiter zueinander 1,25; 1,27; 2,5 oder 2,54 mm.Preferably, electrical conductors with different cross-sections are present in the ribbon or flat cables. The electrical conductors advantageously have a thickness of 5 to 200 microns and the distance from each other is ≥ its thickness. Advantageously, the pitch of the signal conductors to each other 1.25; 1.27; 2.5 or 2.54 mm.

Vorzugsweise sind in dem erfindungsgemäßen Band- oder Flachkabel zur Verbesserung der Flammbeständigkeit Flammschutzmittel enthalten, die entweder zusammen mit dem Bindemittel oder bei der Vlieslegung eingebracht werden.Flame retardants are preferably contained in the strip or flat cable according to the invention for improving the flame resistance, which are introduced either together with the binder or during nonwoven laying.

Besonders bevorzugt sind als Flammschutzmittel Lederfasern enthalten, die insbesondere Lederfaserrückstände der Chromlederherstellung sind.As flame retardants leather fibers are particularly preferably contained, which are in particular leather fiber residues of the manufacture of chrome leather.

Die Erfindung betrifft weiterhin ein Verfahren zur Herstellung eines Band- oder Flachkabels, wobei Vliesstoffe mit einer Luftdurchlässigkeit von 20 bis 8000 mm/s bei einer Druckdifferenz von 200 Pa verwendet werden, zwischen die mindestens ein Signalleiter eingebracht wird und mit einem Bindemittel verbunden werden.The invention further relates to a method for producing a ribbon or flat cable, wherein nonwoven fabrics are used with an air permeability of 20 to 8000 mm / s at a pressure difference of 200 Pa, between which at least one signal conductor is introduced and connected with a binder.

Vorteilhafterweise wird das Bindemittel vor dem Verbinden der Vliesstoffschichten mit dem Signalleiter auf die Vliesstoffschichten in flüssiger, pulvriger oder faseriger Form oder als Folie aufgebracht.Advantageously, before the bonding of the nonwoven fabric layers to the signal conductor, the binder is applied to the nonwoven fabric layers in liquid, powdery or fibrous form or as a film.

Als Bindemittel werden erfindungsgemäß thermoplastische Polymere wie zum Beispiel Polyolefine, Polyester, Polyimide, Polyamide, Polyurethane, Polyacrylate oder Nitrilbutylkautschuk eingesetzt oder venetzbare Systeme wie zum Beispiel Polyurethane, Epoxydharzsysteme oder UV venetzbare Produkte eingesetzt.The binders used according to the invention are thermoplastic polymers such as, for example, polyolefins, polyesters, polyimides, polyamides, polyurethanes, polyacrylates or nitrilobutyl rubber, or crosslinkable systems such as, for example, polyurethanes, epoxy resin systems or UV-crosslinkable products.

Besonders bevorzugt ist ein Verfahren, bei dem die Vliesstoffschichten mit dem Signalleiter zu einem Verbund zusammenlaminiert werden.Particularly preferred is a method in which the nonwoven fabric layers are laminated together with the signal conductor to form a composite.

Die erfindungsgemäßen Band- oder Flachkabel werden zur Verkabelung in Fahrzeugen oder in Haushaltselektrogeräten eingesetzt.The ribbon or flat cable according to the invention are used for wiring in vehicles or household electrical appliances.

Die Erfindung wird nachfolgend anhand von Beispielen näher erläutert.The invention will be explained in more detail by way of examples.

Beispiel 1example 1

Ein flexibles Flachkabel, bestehend aus zwei Polyethylenterephthalat-Spinnvliesstoffen, wird hergestellt, indem man zwischen die Spinnvliesstoffe die elektrischen Signalleiter mit eine Dicke von 35 µm mit einem Abstand der Signalleiter zueinander von 2,5 mm mit Hilfe eines Copolyamid-Klebevliess bei 120°C einlaminiert.A flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is produced by laminating between the spunbonded nonwovens the electrical signal conductors having a thickness of 35 μm with a spacing of the signal conductors from each other of 2.5 mm with the aid of a copolyamide adhesive tape at 120 ° C. ,

Beispiel 2Example 2

Ein flexibles Flachkabel, bestehend aus zwei Polyethyleneterephthalat-Spinnvliesstoffen, wird hergestellt, indem man die Spinnvliesstoffe mit einer Mischung aus einem Copolyamid und einem Epoxydharz bepudert, mehrere elektrischen Signalleiter mit eine Dicke von 35 µm mit einem Abstand der Signalleiter zueinander von 2,54 mm auflegt und bei 160°C laminiert.A flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is prepared by powdering the spunbond webs with a blend of a copolyamide and an epoxy, laying several electrical signal conductors 35 μm thick with a 2.54 mm pitch of the signal conductors to each other and laminated at 160 ° C.

Beispiel 3Example 3

Ein flexibles Flachkabel, bestehend aus zwei Polyethylenterephthalat-Spinnvliesstoffen, wird hergestellt, indem man die Spinnvliesstoffe mit einem Polyurethan-Schmelzkleber bepudert, elektrischen Signalleiter mit einer Dicke von 35 µm mit einem Abstand der Signalleiter zueinander von 2,5 mm auflegt und bei 165°C laminiert.A flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is prepared by powdering the spunbonded nonwoven fabrics with a polyurethane hot melt adhesive, laying electrical signal conductors 35 μm thick with the signal conductors spaced 2.5 mm apart and at 165 ° C laminated.

Beispiel 4Example 4

Ein flexibles Flachkabel, bestehend aus zwei Polyethylenterephthalat-Spinnvliesstoffen, wird hergestellt, indem man die Spinnvliesstoffe mit einer Mischung eines Copolyesters und eines Epoxydharzes bepudert, mehrere elektrischen Signalleiter mit einer Dicke von 30 µm mit einem Abstand der Signalleiter zueinander von 2,54 mm auflegt und bei 175°C laminiert.A flexible flat cable consisting of two polyethylene terephthalate spunbonded fabrics is prepared by powdering the spunbonded nonwoven fabrics with a mixture of a copolyester and an epoxy resin, laying a plurality of electrical signal conductors having a thickness of 30 μm with a pitch of the signal conductors of 2.54 mm to each other and laminated at 175 ° C.

Die Dimensionsstabilität nach einer thermischen Behandlung bei 140°C für 30 Minuten und 24 Stunden wurde beurteilt im Vergleich mit einem Standard-Flachkabel aus Folie. Die Ergebnisse sind in der folgenden Tabelle zusammengefaßt: Materialbezeichnung Schrumpf in % 30 Minuten bei 140°C 24 Stunden bei 140°C Standard Kabel -0.03 -0.30 Beispiel 1 0.03 0.05 Beispiel 2 -0.04 -0.02 Beispiel 3 0.04 0.05 Beispiel 4 0.01 -0.03 The dimensional stability after thermal treatment at 140 ° C for 30 minutes and 24 hours was evaluated in comparison with a standard flat film cable. The results are summarized in the following table: Material Shrinkage in% 30 minutes at 140 ° C 24 hours at 140 ° C Standard cable -0.03 -0.30 example 1 12:03 12:05 Example 2 -0.04 -0.02 Example 3 12:04 12:05 Example 4 12:01 -0.03

Claims (13)

  1. Flexible band or flat cable comprising at least one electric current conductor embedded between at least two layers of nonwoven fabric and provided with an insulating layer, the layers of nonwoven fabric merely consisting of polyester, polyamide, polyolefin, syndiotactic polystyrene, polysulphone and/or glass fibres and joined to one another by a binder.
  2. Band or flat cable according to Claim 1, characterized in that current conductors with different cross sections are present.
  3. Band or flat cable according to either of Claims 1 and 2, characterized in that the electric current conductors have a thickness of from 5 µm to 200 µm and a spacing ≥ their thickness.
  4. Band or flat cable according to one of Claims 1 to 3, characterized in that the electric current conductors are arranged with grid dimensions of 1.25; 1.27; 2.5 or 2.54 mm.
  5. Band or flat cable according to one of Claims 1 to 4, characterized in that flame retardants are contained.
  6. Band or flat cable according to Claim 5, characterized in that leather fibres are contained as flame retardants.
  7. Band or flat cable according to Claim 6, characterized in that leather fibre remains from chrome leather manufacture are contained as flame retardants.
  8. Method for manufacturing a band or flat cable according to one of Claims 1 to 7, characterized in that nonwoven fabrics with an air permeability of from 20 to 8000 mm/s under a pressure differential of 200 Pa are used, between which at least one electric current conductor is introduced, and which are joined by a binder.
  9. Method according to Claim 8, characterized in that the binder is applied to the layers of nonwoven fabric in liquid, powder or fibre form or as a film before the layers of nonwoven fabric are joined to the electric current conductor.
  10. Method according to Claim 8, characterized in that thermoplastic polyolefins, polyesters, polyimides, polyamides, polyacrylates, polyurethanes or nitrile-butadiene rubber is used as the binder.
  11. Method according to Claim 8, characterized in that, as binders, polymers are selected from the group that includes polymers with reactive chemical functions which can crosslink with one another, this taking place when energy is supplied in the form of heat and/or UV radiation and/or by electron bombardment, which initiates, suppresses or promotes this reaction.
  12. Use of a band or flat cable according to one of Claims 1 to 7 for the cabling in motor vehicles.
  13. Use of a band or flat cable according to one of Claims 1 to 7 for the cabling in domestic electric appliances.
EP03706514A 2002-05-21 2003-02-15 Flexible band or flat cable and method of manufacturing Expired - Lifetime EP1506553B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10222832 2002-05-21
DE10222832A DE10222832B3 (en) 2002-05-21 2002-05-21 Flexible ribbon or flat cable
PCT/EP2003/001536 WO2003098642A1 (en) 2002-05-21 2003-02-15 Flexible band or flat cable

Publications (2)

Publication Number Publication Date
EP1506553A1 EP1506553A1 (en) 2005-02-16
EP1506553B1 true EP1506553B1 (en) 2007-03-28

Family

ID=29432234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03706514A Expired - Lifetime EP1506553B1 (en) 2002-05-21 2003-02-15 Flexible band or flat cable and method of manufacturing

Country Status (12)

Country Link
US (1) US20060090924A1 (en)
EP (1) EP1506553B1 (en)
JP (1) JP2005526360A (en)
KR (1) KR100650242B1 (en)
AT (1) ATE358321T1 (en)
AU (1) AU2003208859B2 (en)
BR (1) BR0311219A (en)
CZ (1) CZ297427B6 (en)
DE (2) DE10222832B3 (en)
MX (1) MXPA04011509A (en)
PL (1) PL373459A1 (en)
WO (1) WO2003098642A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004061472A1 (en) * 2004-12-21 2006-07-06 Carl Freudenberg Kg Assembly unit with a flat cable made of a multi-core flexible ribbon cable
JP5108228B2 (en) * 2006-01-10 2012-12-26 住友電気工業株式会社 Electrical component, non-aqueous electrolyte battery, lead conductor with insulating coating layer and enclosure used for them
US20110120748A1 (en) * 2006-01-17 2011-05-26 Beru F1 Systems Limited Wiring component
GB0600878D0 (en) 2006-01-17 2006-02-22 Beru F1 Systems Ltd Multiple wires array
GB2461017B (en) 2008-03-28 2010-04-28 Beru F1 Systems Ltd A connector and electrical tracks assembly
JP6257883B2 (en) * 2012-07-10 2018-01-10 大日本印刷株式会社 Covering material for flexible flat cable
JP5995142B2 (en) * 2012-11-06 2016-09-21 大日本印刷株式会社 Flat cable and manufacturing method thereof
JP6304101B2 (en) * 2015-03-31 2018-04-04 株式会社オートネットワーク技術研究所 Exterior wire harness and electrical equipment with harness

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Publication number Priority date Publication date Assignee Title
GB1342716A (en) * 1970-07-11 1974-01-03 Rists Wires & Cables Ltd Wiring harnesses
USRE31477E (en) * 1972-03-17 1983-12-27 Thomas & Betts Corporation Flat multi-signal transmission line cable with plural insulation
US4468089A (en) * 1982-07-09 1984-08-28 Gk Technologies, Inc. Flat cable of assembled modules and method of manufacture
US4862922A (en) * 1983-01-18 1989-09-05 The Bentley-Harris Manufacturing Company Abrasion resistant sleeve for flat substrates
DE3688798T2 (en) * 1985-01-23 1993-12-23 Toyo Boseki Flexible sheet reinforced with a non-woven polyaramide fabric and use thereof.
DD283008B5 (en) * 1989-05-05 2003-08-07 Hufnagel Evelin Low voltage cable and method for its manufacture
US5276759A (en) * 1992-01-09 1994-01-04 Raychem Corporation Flat cable
JPH08171819A (en) * 1994-12-15 1996-07-02 Tokai Rubber Ind Ltd Water-proofing material for layer twisted-type communication cable and layer twisted-type communication cable using it
US5744756A (en) * 1996-07-29 1998-04-28 Minnesota Mining And Manufacturing Company Blown microfiber insulated cable
DE10030078A1 (en) * 1999-11-30 2001-05-31 Haensel Verbundtechnik Gmbh & Protective sleeve for elongated bodies, especially cable trees in vehicles, has surface path, especially foil path on whose first side, hook elements are located and on opposite side, corresponding loop elements
US6730622B2 (en) * 1999-12-21 2004-05-04 The Procter & Gamble Company Electrical cable
DE10227890A1 (en) * 2002-06-21 2004-01-29 Carl Freudenberg Kg Flexible ribbon or flat cable

Also Published As

Publication number Publication date
EP1506553A1 (en) 2005-02-16
AU2003208859B2 (en) 2007-01-04
JP2005526360A (en) 2005-09-02
CZ20041143A3 (en) 2006-09-13
CZ297427B6 (en) 2006-12-13
ATE358321T1 (en) 2007-04-15
KR100650242B1 (en) 2006-11-27
MXPA04011509A (en) 2005-02-14
AU2003208859A1 (en) 2003-12-02
DE50306909D1 (en) 2007-05-10
PL373459A1 (en) 2005-08-22
WO2003098642A1 (en) 2003-11-27
DE10222832B3 (en) 2004-01-22
US20060090924A1 (en) 2006-05-04
KR20040104751A (en) 2004-12-10
BR0311219A (en) 2005-03-01

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