EP0644556B1 - Geräuschunterdruckendes hochspannungsfestes Kabel mit gewundenem Widerstand - Google Patents

Geräuschunterdruckendes hochspannungsfestes Kabel mit gewundenem Widerstand Download PDF

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Publication number
EP0644556B1
EP0644556B1 EP19940105235 EP94105235A EP0644556B1 EP 0644556 B1 EP0644556 B1 EP 0644556B1 EP 19940105235 EP19940105235 EP 19940105235 EP 94105235 A EP94105235 A EP 94105235A EP 0644556 B1 EP0644556 B1 EP 0644556B1
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EP
European Patent Office
Prior art keywords
winding
type high
voltage resistant
layer
resistive
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
EP19940105235
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English (en)
French (fr)
Other versions
EP0644556A3 (de
EP0644556A2 (de
Inventor
Makoto C/O Sumitomo Wiring Systems Higashikozono
Terutsugu C/O Sumitomo Wiring Systems Fujimoto
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Filing date
Publication date
Application filed by Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Publication of EP0644556A2 publication Critical patent/EP0644556A2/de
Publication of EP0644556A3 publication Critical patent/EP0644556A3/de
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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
    • H01B7/0063—Ignition cables

Definitions

  • the present invention relates to a winding-type high-voltage resistant, resistive cord for preventing noise which is used as an ignition cable in an internal combustion engine of an automotive vehicle or the like and, more particularly, to a winding-type high-voltage resistant, resistive cord for preventing noises which is sufficiently resistant to voltage.
  • High-voltage resistant, resistive cords for transmitting a high voltage generated at an ignition coil to a spark plug directly or through a distributer are of two types: a string-type wherein fibers are impregnated with carbon; and a winding-type wherein a metal small-gage wire having a high specific resistance is wound about a core made of a magnetic material or the like. Both two types of high-voltage resistant, resistive cords are required to have reduced electric transmission losses, excellent noise prevention effects, and good resistance to heat and voltage.
  • winding-type high-voltage resistant, resistive cords are disclosed in, for example, Japanese Patent Application Laid-Open No. 63-168915 (1988) and Japanese Patent Application Laid-Open No. 60-3809 (1985).
  • the former as shown in Fig. 7, comprises a tension member 51 made of aramid fibers, glass fibers or the like, a core 52 formed by coating the tension member 51 with extruded fluorocarbon rubber in which a magnetic material such as ferrite powder is mixed, a resistance wire 53 wound about the core 52, an insulating layer 54 extruded and coating the core wire 52 and the resistance wire 53, a braid 55 coating the insulating layer 54, and an outermost sheath 56 coating the braid 55.
  • the latter as shown in Fig. 8, comprises string-like fibers 61 formed by twisting glass fibers like the former, a core bundled layer 62 made of a synthetic resin such as silicone resin or the like and coating the string-like fibers 61, a metal resistance wire 63 such as a nichrome wire which is coiled around the core bundled layer 62, a conductive silicone rubber layer 64 extruded and coating the metal resistance wire 63, an insulating layer 65 coating the conductive silicone rubber layer 64, a braid 66 coating the insulating layer 65, and a sheath layer 67 coating the braid 66.
  • a metal resistance wire 63 such as a nichrome wire which is coiled around the core bundled layer 62
  • a conductive silicone rubber layer 64 extruded and coating the metal resistance wire 63
  • an insulating layer 65 coating the conductive silicone rubber layer 64
  • a braid 66 coating the insulating layer 65
  • a sheath layer 67 coating the braid 66.
  • the former can prevent the resistance wire 53 from shifting since the resistance wire 53 is buried in the surface of the core 52.
  • the conductive silicone rubber layer 64 extruded and coating the metal resistance wire 63 allows the metal resistance wire 63 to have a stable resistance.
  • the silicone rubber layer 64 serving as the internal layer does not cause the foregoing problem.
  • the insulating layer 65 covering the silicone rubber layer 64 is made of a material such as crosslinked polyethylene (PEX), ethylene-propylene-diene copolymer (EPDM) or the like, which is different from the material of the silicone rubber layer 64. This results in poor adhesion between the insulating layer 65 and the silicone rubber layer 64 and a gap generated therebetween, which lowers the resistance to voltage due to the corona discharge.
  • PEX crosslinked polyethylene
  • EPDM ethylene-propylene-diene copolymer
  • the core is not removed from the fiber bundle by a pressure of extrusion of the hard internal layer.
  • the internal layer and the insulating layer which are made of the same base material, have good adhesion to each other and form no gap therebetween.
  • the fluorocarbon rubber coating may contain either or both of the conductive material and magnetic material.
  • the provision of the removal layer between the conductor and the internal layer facilitates the stripping of the coating layers including the internal layer outside the conductor during cutting and stripping operation.
  • a winding-type high-voltage resistant, resistive cord for preventing noises of the preferred embodiment comprises a fiber bundle 11, a core 12, a metal small-gage wire 13, a removal layer 15, an internal layer 16, an insulating layer 17, a braid 18, and a sheath 19.
  • the fiber bundle 11 is made of 2250 denier aramid fibers (DuPont-made Kevlar fibers) and is twisted (100 T/m) for flexibility.
  • the fiber bundle 11 is immersed in and impregnated with a fluorocarbon rubber coating 21 formed by filling fluorocarbon rubber with carbon and ferrite and regulating it by a solvent which is methyl ethyl ketone (MEK), and is then dried in a drying furnace 22, to form the core 12 on the outer periphery of the fiber bundle 11 as shown in Fig. 2.
  • a fluorocarbon rubber coating 21 formed by filling fluorocarbon rubber with carbon and ferrite and regulating it by a solvent which is methyl ethyl ketone (MEK), and is then dried in a drying furnace 22, to form the core 12 on the outer periphery of the fiber bundle 11 as shown in Fig. 2.
  • MEK methyl ethyl ketone
  • the metal small-gage wire 13 having a high specific resistance is wound about the core 12 formed on the outer periphery of the fiber bundle 11 by means of a horizontal winding machine 23 as shown in Fig. 3.
  • the horizontal winding machine 23 includes a bobbin 23a around which a 40 ⁇ m nichrome wire serving as the metal small-gage wire 13 is wound for passing the fiber bundle 11 therethrough, a guide 23b rotating for winding the metal small-gage wire 13 onto the core 12, and a reel 23c for reeling a winding conductor 14.
  • the removal layer 15 made of graphite or silicone is formed on the outer periphery of the winding conductor 14 by means of a removal layer forming machine 24 as shown in Fig. 4.
  • the semiconductive, polyethylene (PE) based internal layer 16 filled with carbon and the insulating layer 17 in which a flexible PEX containing blended PEX and EP and a vulcanizing agent are mixed are sequentially made by extrusion by means of an internal layer extruding machine 25 and an insulating layer extruding machine 26.
  • the insulating layer 17 which is non-vulcanized passes through a vulcanizing tube 27 to be vulcanized.
  • the removal layer 15 is provided between the winding conductor 14 and the internal layer 16 for ease of stripping of coating layers including the internal layer 16 outside the winding conductor 14 during cutting and stripping operation.
  • the insulating layer 17 is covered with the braid 18 made of glass fibers by means of a braiding machine 28.
  • the sheath 19 made of silicone rubber in which a vulcanizing agent is mixed is extruded to coat the braid 18 by means of a sheath extruding machine 29, and is vulcanized through a vulcanizing tube 30, thereby completing the winding-type high-voltage resistant, resistive cord for preventing noises as shown in Fig. 1.

Landscapes

  • Insulated Conductors (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (7)

  1. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen, enthaltend:
    einen Leiter (14) mit einem Kern (12), der durch Imprägnieren eines Faserbündels (11) mit einem Fluorkohlenstoff-Kautschukbelag hergestellt ist, der ein leitfähiges Material und/oder ein magnetisches Material enthält, sowie mit einem Metalldraht (13) dünnen Durchmessers, welcher hohen Widerstand aufweist, und um den Kern gewickelt ist;
    eine halbleitende Innenschicht (16) auf Polyäthylenbasis mit einer Füllung aus leitfähigen Partikeln, wobei die Innenschicht den genannten Leiter (14) umkleidet; und
    eine Isolationsschicht (17), welche die Innenschicht (16) umgibt, wobei die genannte Isolationsschicht (17) aus Polyäthylen besteht.
  2. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen nach Anspruch 1, bei welchem eine Trennschicht (15) zwischen dem genannten Leiter (14) und der genannten Innenschicht (16) vorgesehen ist.
  3. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen nach Anspruch 1 oder 2, bei welchem die genannte Isolationsschicht (17) mit einer Umflechtung (18) umgeben ist, die mit einer Ummantelung (19) beschichtet ist.
  4. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen nach Anspruch 1 oder 2, bei welchem das Faserbündel (11) aus Aramidfasern gebildet ist.
  5. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen nach Anspruch 1 oder 2, bei welchem die genannte Fluorkohlenstoff-Kautschukbeschichtung Fluorkohlenstoff-Kautschuk mit einem leitfähigen Material, beispielsweise Kohlenstoff und Ferrit als Füllung, eingestellt durch ein Lösungsmittel, welches Methyläthylketon ist, enthält.
  6. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen nach Anspruch 2, bei welchem die genannte Trennschicht (15) aus Graphit oder Silikon gebildet ist.
  7. Gewickeltes, hochspannungsfestes, Widerstand aufweisendes Kabel zum Verhindern von Störungen nach Anspruch 1 oder 2, bei welchem die genannte Isolierschicht (17) durch Mischen eines Vulkanisationsmittels mit flexiblem, kreuzvernetzem Polyäthylen und Äthylenpropylen-Kautschuk gebildet ist.
EP19940105235 1993-04-06 1994-04-05 Geräuschunterdruckendes hochspannungsfestes Kabel mit gewundenem Widerstand Expired - Lifetime EP0644556B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10516693A JPH06295622A (ja) 1993-04-06 1993-04-06 巻線型雑音防止用高圧抵抗電線
JP105166/93 1993-04-06

Publications (3)

Publication Number Publication Date
EP0644556A2 EP0644556A2 (de) 1995-03-22
EP0644556A3 EP0644556A3 (de) 1995-06-21
EP0644556B1 true EP0644556B1 (de) 1997-08-06

Family

ID=14400106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940105235 Expired - Lifetime EP0644556B1 (de) 1993-04-06 1994-04-05 Geräuschunterdruckendes hochspannungsfestes Kabel mit gewundenem Widerstand

Country Status (3)

Country Link
EP (1) EP0644556B1 (de)
JP (1) JPH06295622A (de)
DE (1) DE69404791T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07153318A (ja) * 1993-11-25 1995-06-16 Sumitomo Wiring Syst Ltd 巻線型雑音防止用高圧抵抗電線
US6054028A (en) * 1996-06-07 2000-04-25 Raychem Corporation Ignition cables
JP2000030539A (ja) * 1998-07-13 2000-01-28 Sumitomo Wiring Syst Ltd 設置型機器の高圧回路用電線及びその製造方法
DE502007004252D1 (de) 2007-05-25 2010-08-12 Siemens Ag Endenglimmschutzanordnung
US20130133921A1 (en) * 2011-11-28 2013-05-30 Prestolite Wire Llc Anti-capillary resistor wire
CN104700960B (zh) * 2015-02-02 2017-12-22 河北瑞光线缆有限公司 一种高速列车用电缆的生产工艺
CN108666048A (zh) * 2018-03-19 2018-10-16 南通智博电子线缆有限公司 汽车电缆生产工艺
CN109712749A (zh) * 2018-12-27 2019-05-03 深圳市合丰嘉大科技有限公司 一种耐高频耐高压的柔性电缆及其制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700171A (en) * 1986-12-04 1987-10-13 United Technologies Corporation Ignition wire
JPH01211807A (ja) * 1988-02-19 1989-08-25 Yazaki Corp 巻線型高圧抵抗電線

Also Published As

Publication number Publication date
EP0644556A3 (de) 1995-06-21
JPH06295622A (ja) 1994-10-21
EP0644556A2 (de) 1995-03-22
DE69404791T2 (de) 1998-02-05
DE69404791D1 (de) 1997-10-30

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