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EP0452942A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Electromagnetically shielded wire or cable

Assignee: Yazaki Corp
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Filing: 1991-04-18
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Granted: —
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Expires: 2011-04-18
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Abstract

Abstract A shield wire comprising: a conductor, an insulation layer provided around an outer periphery of the conductor; an electrically-conductive resin layer provided around an outer periphery of the insulation layer; a covering insulation layer formed around an outer periphery of the electrically-conductive resin layer; and shield device for shielding the shield cable from electromagnetic interference, the means formed to electrically contact the electrically-conductive resin layer. <IMAGE>

Inventors

  • 👤 Makoto C/O Yazaki Parts Co. Ltd. Katsumata
  • 👤 Akira C/O Yazaki Parts Co. Ltd. Ikegaya
  • 👤 Hidenori C/O Yazaki Parts Co. Ltd. Yamanashi
  • 👤 Hitoshi C/O Yazaki Parts Co. Ltd. Ushijima

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 14:14
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/08; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1058; H01B11/1066; H01B11/1091; H01B7/0861

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 65 words
A shield wire comprising: a conductor: an insulation layer provided around an outer periphery of said conductor; an electrically-conductive resin layer provided around an outer periphery of said insulation layer; a covering insulation layer formed around an outer periphery of said electrically-conductive resin layer; and shield means for shielding said shield wire from electromagnetic interference, said means formed to electrically contact said electrically-conductive resin layer.
Claim 2
Dependent Claim 16 words
A shield wire as claimed in claim 1, wherein said shield means includes a drain wire.
Claim 3
Dependent Claim 19 words
A shield wire as claimed in claim 2, wherein said drain wire is turned at least twice per meter.
Claim 4
Dependent Claim 24 words
A shield wire as claimed in claim 2, wherein said drain wire is spirally wound around said outer periphery of said electrically-conductive resin layer.
Claim 5
Dependent Claim 21 words
A shield wire as claimed in claim 2, wherein said drain wire is spirally disposed inwardly of said electrically-conductive resin layer.
Claim 6
Dependent Claim 24 words
A shield wire as claimed in claim 2, wherein said drain wire is spirally embedded in the inner surface of said electrically-conductive resin layer.
Claim 7
Dependent Claim 21 words
A shield wire as claimed in claim 1, wherein said electrically-conductive layer has a volume resistivity of 10⁻³ to 10⁻⁵ Ω·cm.
Claim 8
Dependent Claim 27 words
A shield wire as claimed in claim 1, wherein said electrically-conductive layer includes vapor phase-growing carbon fiber and graphitized carbon fiber made of said phase-growing carbon fiber.
Claim 9
Dependent Claim 20 words
A shield wire as claimed in claim 2, wherein said drain wire is shaped as flatness in a cross section.
Claim 10
Dependent Claim 26 words
A shield wire as claimed in claim 9, wherein the ratio of the width to the thickness of said drain wire is not less than 1.
Claim 11
Dependent Claim 54 words
A shield wire as claimed in claim 2, wherein the ratio of the cross-sectional area of said electrically-conductive resin layer to that of said drain wire is meet to express the following condition: S₁/S₂ < 1500 where S₁: cross sectional area of said electrically-conductive resin layer; S₂: cross sectional ares of said shield means.
Claim 12
Dependent Claim 43 words
A shield cable comprising: a plurality of conductors disposed in parallel to each other by a predetermined gap; an induction prevention member provided between any two adjacent ones of said conductors; and a covering insulation member provided to cover said induction prevention member.
Claim 13
Dependent Claim 25 words
A shield cable as claimed in claim 12, further comprising: drain wire disposed in said induction prevention member to electrically contact said induction prevention member.
Claim 14
Dependent Claim 28 words
A shield cable as claimed in claim 12, further comprising: shield means for shielding said shield cable from electromagnetic interference to cover periphery of said induction preventation member.
Claim 15
Dependent Claim 35 words
A shield wire as claimed in claim 13, wherein said drain wire is disposed to electrically contact with said induction prevention member at the central portion of said shield cable in parallel to said conductor.
Claim 16
Dependent Claim 28 words
A shield wire as claimed in claim 12, wherein said induction prevention member is provided to cover at lease one of upper and lower surfaces of each conductor.
Claim 17
Dependent Claim 21 words
A shield wire as claimed in claim 12, wherein said electrically-conductive layer has a volume resistivity of 10⁻³ to 10⁻⁵ Ω·cm.
Claim 18
Dependent Claim 27 words
A shield wire as claimed in claim 12, wherein said electrically-conductive layer includes vapor phase-growing carbon fiber and graphitized carbon fiber made of said phase-growing carbon fiber.
Claim 19
Dependent Claim 19 words
A shield wire as claimed in claim 13, wherein said drain wire is rectangularly shaped in a cross section.
Claim 20
Dependent Claim 26 words
A shield wire as claimed in claim 19, wherein the ratio of the width to the thickness of said drain wire is not less than 1.
Claim 21
Dependent Claim 63 words
A shield cable comprising: a conductor; an electrically-conductive resin layer provided around an outer periphery of said conductor, said electrically-conductive layer having a volume resistivity of 10⁻³ to 10⁻⁵ Ω·cm, said electrically-conductive layer including vapor phase-growing carbon fiber and graphitized carbon fiber made of said phase-growing carbon fiber; and a covering insulation layer formed around an outer periphery of said electrically-conductive resin layer.

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