PROBLEM TO BE SOLVED: To provide a waterproof structure of a wiring harness, capable of visually confirming a filling state of a water cutoff agent from an outer part, surely filling the water cutoff agent into a surround of a splice part, and discharging water even when the water enters to a non-filling region.SOLUTION: A waterproof structure of a wiring harness comprises: electric wires 1 and 2 forming an intermediate splice part 3; an exterior member 5 surrounding the intermediate splice part 3 and a plurality of adjacent end parts 12a, 12b, and 22a adjacent to the intermediate splice part 3 in a whole circumference; and a hardening layer 40 of a water cutoff agent filled between the intermediate splice part 3 and the exterior member 5. The exterior member 5 is formed by a waterproofness sheet material 50 curving so as to surround the splice part 3 and the adjacent end parts 12a, 12b, and 22a. The sheet material 50 allows a part 41 of the hardening layer 40 of the water cutoff agent to be wept in a water cutoff agent filling region so as to be dotted on an outer surface 52, and has a plurality of weeping holes 51 opening so as to discharge a moisture content to the outer surface 52 in a water cutoff agent non-filling region.SELECTED DRAWING: Figure 1
【課題】止水剤の充填状態を外部から目視確認でき、スプライス部の周囲に止水剤を確実に充填でき、非充填領域に水が入ったとしても容易に排水させることができるワイヤハーネスの防水構造を提供する。【解決手段】中間スプライス部3を形成している電線1、2と、中間スプライス部3およびそれに隣接する複数の隣接端部12a、12b、22aを全周で取り囲む外装部材5と、中間スプライス部3と外装部材5の間に充填された止水剤の硬化層40と、を備えたワイヤハーネスの防水構造であって、外装部材5が、スプライス部3および隣接端部12a、12b、22aを取り囲むよう湾曲した防水性のシート素材50によって形成されており、シート素材50は、止水剤充填領域では止水剤の硬化層40の一部41を外表面52上に点在するようにしみ出させる一方、止水剤非充填領域では外表面52上に水分を排出可能に開口する複数のしみ出し孔51を有している。【選択図】図1
WATERPROOF STRUCTURE OF WIRING HARNESS
ワイヤハーネスの防水構造
2016-09-05
Patent
Electronic Resource
Japanese
IPC: | H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES , Verlegen oder Installieren elektrischer Kabel oder Leitungen, Verlegen oder Installieren kombinierter optischer und elektrischer Kabel oder Leitungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01B CABLES , Kabel / H01R Elektrisch leitende Verbindungen , ELECTRICALLY-CONDUCTIVE CONNECTIONS |
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