Wire harness waterproof structure

Abstract

Provided is a wire harness that suppresses the hardening of waterproofing parts and the enlargement of the outer diameter thereof. In a group of cables configuring one wire harness, a plurality of shielded cables provided with waterproofing parts are divided into a plurality of groups, the positions of the waterproofing parts differ for each group, a prescribed distance is provided between waterproofing parts of different groups, and the waterproofing parts are distributed in the axial direction of the wire harness.

Description

technical field [0001] The present invention relates to a wire harness waterproof structure, and in particular, the invention relates to a wire harness waterproof structure that prevents a decrease in flexibility of a waterproof portion and reduces an increase in outer diameter. Background technique [0002] An increasing number of shielded wires are used to prevent noise from wire bundles in wire harnesses that are routed in automobiles. like Figure 5 As shown in , such a shielded wire includes a plurality of core wires 2 each having a strand 2 a covered by an insulating layer 2 b , a shield 3 and an outer casing (sheath) 4 . The core wire 2 is used as a signal wire. The shielding layer 3 is a tube composed of a metal braid covering the outer periphery of the bundled core wires 2 or a metal foil tape wound around the outer periphery. The case 4 is an insulating resin layer provided on the outer periphery of the shield layer 3 . In addition, in the case where the shieldi...

AI Technical Summary

Problems solved by technology

[0004] When water enters between the cut-off end 4a of the housing 4 and the cut-off end of the shielding layer 3, between the cut-off end of the shielding layer 3 and the core wire 2, or between the core wires 2, water is sucked into the shielding wire due to capillary action. 1 inside, and puts water in contact with the shield 3, which may cause corrosion

Images