TWO-CORE TWISTED SHIELDED CABLE AND WIRE HARNESS

• Main Authors: HANDA YUTAKA, INOUE SHUICHI
• Format: Patent
• Language: English; Japanese
• Published: 18.03.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

To provide a two-core twisted shielded cable and a wire harness which are inexpensive, can be easily trimmed, and can prevent the deterioration of the transmission characteristics.SOLUTION: A two-core twisted shielded cable 1 includes two insulated wires 10 being twisted together, a metal foil shield 20, a metal braid 30, and a sheath 40. The relationship between an ellipse E circumscribing the two insulated wires 10 and a width of the metal foil shield 20 is: width=elliptical circumference/(1-α), and 0.20≤α≤0.40. The metal foil shield 20 has a thickness of 15 μm or more and 120 μm or less, includes a metal layer and a PET film layer, and 0.10≤(metal layer thickness/PET film layer thickness)≤1.25.SELECTED DRAWING: Figure 3 【課題】より安価でトリミングし易く、伝送特性の悪化を抑制することが可能な２芯ツイストシールドケーブル及びワイヤーハーネスを提供する。【解決手段】撚り合わされた２本の絶縁電線１０と、金属箔シールド２０と、金属編組３０と、シース４０とを備えた２芯ツイストシールドケーブル１において、２本の絶縁電線１０に外接する楕円Ｅと、金属箔シールド２０の幅とは、幅＝楕円周／（１－α）の関係とされ、０．２０≦α≦０．４０であり、金属箔シールド２０は、厚さが１５μｍ以上１２０μｍ以下であって、金属層とＰＥＴフィルム層とを有し、０．１０≦（金属層厚／ＰＥＴフィルム層厚）≦１．２５である。【選択図】図３