Wiring member and method for manufacturing wiring member

Patent metadata

Field	Value
Publication number	US-12463374-B2
Application number	US-202118000575-A
Country	US
Kind code	B2
Filing date	May 18, 2021
Priority date	Jun 3, 2020
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

An object of the present disclosure is to provide a technique for easily suppressing the intrusion of a resin into a cavity. A wiring member includes: a connector housing provided with a cavity; an electric wire in which one end portion is housed in the cavity and the other end portion extends outward from an opening portion of the cavity; a sealing component that is attached to the connector housing or the electric wire to at least partially close off a gap between the connector housing and the electric wire in the opening portion of the cavity; a resin molded part that covers a portion extending from a rear end portion of the connector housing to a position of an intermediate portion of the electric wire on the other end portion side relative to a portion provided with the sealing component.

First claim

The invention claimed is:

1 . A wiring member comprising:
a connector housing provided with a cavity; an electric wire in which one end portion is housed in the cavity and the other end portion extends outward from an opening portion of the cavity; a sealing component that is attached to the connector housing or the electric wire to at least partially close off a gap between the connector housing and the electric wire in the opening portion of the cavity, wherein the sealing component includes a semi-tubular first member that covers the electric wire from one side and a semi-tubular second member that covers the electric wire from another side; and a resin molded part that covers a portion extending from a rear end portion of the connector housing to a position of an intermediate portion of the electric wire on the other end portion side relative to a portion provided with the sealing component; and wherein the sealing component includes an insertion part provided with a hole in a plate-like part through which the electric wire is passed, the hole is formed to be smaller than the cavity, and the plate-like part is formed to be larger than the cavity and positioned on the other end portion side of the electric wire relative to the opening portion of the cavity.

2 . The wiring member according to claim 1 ,
wherein a gate mark is left on an outer surface of the resin molded part, the gate mark being a mark of a gate that is provided in a metal mold for pouring a molten resin into the metal mold at a time of molding of the resin molded part, and the gate mark is positioned on the other end portion side of the electric wire relative to the sealing component.

3 . The wiring member according to claim 1 ,
wherein a gate mark is left on an outer surface of the resin molded part, the gate mark being a mark of a gate that is provided in a metal mold for pouring a molten resin into the metal mold at a time of molding of the resin molded part, and the gate mark is positioned on the other end portion side of the electric wire relative to the sealing component.

4 . The wiring member according to claim 3 ,
wherein a surface of the sealing component facing a front end portion of the connector housing is in contact with the connector housing.

5 . A manufacturing method of a wiring member, comprising:
a preparing step of, for a connector-equipped electric wire in which an end portion of an electric wire is housed in a cavity of a connector housing, providing the connector housing or the electric wire with a sealing component that at least partially closes off a gap between the connector housing and the electric wire in an opening portion of the cavity, and placing the connector-equipped electric wire and the sealing component in a metal mold; and a molding step of pouring a molten resin into the metal mold after the preparation step wherein, in the molding step, an outer circumferential portion of the sealing component is partially pressed by the metal mold.

Assignees

• Sumitomo Wiring Systems

Inventors

• Yamamoto Hironobu
• Kobayashi Toshinari
• Kim Kyungwoo
• Terasaka Yukitoshi

Classifications

• H01R43/005

  for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing · CPC title

• H01R13/5845

  the strain relief being achieved by molding parts around cable and connections · CPC title

• B29L2031/36

  Plugs, connectors, or parts thereof · CPC title

• B29C45/14639

  for obtaining an insulating effect, e.g. for electrical components · CPC title

• B29C45/14549

  Coating rod-like, wire-like or belt-like articles (B29C45/14426 takes precedence) · CPC title