Connector with built-in ferrite core

Patent metadata

Field	Value
Publication number	US-2025372926-A1
Application number	US-202318875162-A
Country	US
Kind code	A1
Filing date	Jun 5, 2023
Priority date	Jun 17, 2022
Publication date	Dec 4, 2025
Grant date	—

Abstract

A connector with a built-in ferrite core is disclosed which suppresses the damage of the ferrite core and has an excellent degree of freedom in selecting a resin material to be used. A connector 10 with a built-in ferrite core includes a terminal fitting 12, a ferrite core 14 to be arranged to surround the terminal fitting 12 and a connector housing 16 for accommodating the terminal fitting 12 and the ferrite core. The connector housing 16 includes a first resin portion 18 for holding the terminal fitting 12 in an embedded state and a second resin portion 20 for holding the first resin portion 18 and the ferrite core 14 in an embedded state.

First claim

1 . A connector with a built-in ferrite core, comprising:
a terminal fitting; a ferrite core arranged to surround the terminal fitting; and a connector housing for accommodating the terminal fitting and the ferrite core, the connector housing including a first resin portion for holding the terminal fitting in an embedded state and a second resin portion for holding the first resin portion and the ferrite core in an embedded state.

2 . The connector of claim 1 , wherein the second resin portion is made of a resin material higher in heat resistance than PVC.

3 . The connector of claim 1 , wherein:
the ferrite core is annularly arranged to surround the first resin portion, and the second resin portion integrally includes a filling portion for filling between an inner peripheral surface of the ferrite core and a facing surface of the first resin portion and an outer surface covering portion for covering an outer peripheral surface and a pair of axial end surfaces of the ferrite core.

4 . The connector of claim 3 , wherein a projection projecting toward the inner peripheral surface of the ferrite core is provided on a surface of the first resin portion.

5 . The connector of claim 4 , wherein a plurality of the projections are distributed and arranged on the surface of the first resin portion while being spaced apart from each other in a circumferential direction.

6 . The connector of claim 3 , wherein the outer surface covering portion includes an exposure hole for exposing the ferrite core.

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries

Inventors

• Hashimoto Yuki
• Nishijima Seido
• Kimura Akio

Classifications

• H01R2201/26

  for vehicles · CPC title

• H01R13/46

  Bases; Cases · CPC title

• H01R13/7193 Primary

  with ferrite filters · CPC title

• H01R13/405 Primary

  Securing in non-demountable manner, e.g. moulding, riveting · CPC title

• H01F17/06

  with core substantially closed in itself, e.g. toroid · CPC title