Signal transmission cable with connector

• US 20050133245A1
• Filed: 12/28/2004
• Published: 06/23/2005
• Est. Priority Date: 06/28/2002
• Status: Active Grant

• Current Assignee: FDK Corporation (Fujitsu Limited)
• Original Assignee: FDK Corporation (Fujitsu Limited)
• Inventors: Katsuyama, Yoshiro, Teranishi, Manabu, Konda, Junji
• Granted Patent: US 7,173,182 B2
• Time in Patent Office: Days
• US Class Current: 174/74.R
• CPC Class Codes: H01R 13/65912 for shielded multiconductor cable coaxial cables with one conductor surrounded by shield H01R9/05; flat shielded cables H01R12/594
• CPC Class Codes: H01R 13/6592 the conductive member being a shielded cable
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: H01R 9/031 for multiphase cables, e.g. with contact members penetrating insulation of a plurality of conductors insulation penetrating contact members in general H01R4/24
• CPC Class Codes: H01R 9/0524 Connection to outer conductor by action of a clamping member, e.g. screw fastening means H01R9/0515 takes precedence

Abstract

Provided is a signal transmission cable with a connector, including: a shielded cable having a shielding layer and an insulating coating layer, which cover a periphery of a plurality of insulated wires, and a magnetic powder compound layer interposed between the shielding layer and the insulating coating layer; a connector which is electrically and mechanically connected to at least one end of the shielded cable, and which has a shielding metal cover extending from a housing part to a cable end, the housing part holding terminals to be connected to the insulated wires; and a closed magnetic path core which is fitted on a separated part of the insulating coating layer at the end of the shielded cable. The shielding layer is folded back so as to cover outside of the closed magnetic path core, an insulating tape is wound around the shielding layer in a peripheral portion of the closed magnetic path core, and a tip portion of the shielding layer is connected to the shielding metal cover in a state where the closed magnetic path core is housed in the shielding metal cover. Thus, a coil of one turn is formed.

Claims

1. A signal transmission cable with a connector, comprising:

a shielded cable having a plurality of insulated wires, a shielding layer, and an insulating coating layer, said shielding layer and insulating coating layer covering a periphery of said insulated wires, said shielded cable further having a magnetic powder compound layer interposed between the shielding layer and the insulating coating layer;

a connector which is electrically and mechanically connected to at least one end of said shielded cable, and which has a shielding metal cover extending from a housing part to a cable end, the housing part holding terminals to be connected to said insulated wires; and

a closed magnetic path core which is fitted on a separated part of said insulating coating layer at the end of said shielded cable,

wherein a coil of one turn is formed in such a manner that said shielding layer is folded back so as to cover outside of said closed magnetic path core, an insulating tape is wound around said shielding layer in a peripheral portion of said closed magnetic path core, and a tip portion of said shielding layer is connected to said shielding metal cover in a state where said closed magnetic path core is housed in said shielding metal cover.

2. A signal transmission cable with a connector according to claim 1, wherein said closed magnetic path core is fitted on a part of said shielding layer, in which said insulating coating layer and said magnetic powder compound layer at the end of said shielded cable are separated.

3. A signal transmission cable with a connector according to claim 1, wherein a metal tape is wound around the tip portion of said shielding layer, which is folded back to be laid on said insulating coating layer, to fix the tip portion, the tip portion of said shielding layer is connected to said shielding metal cover through the metal tape, and at least a base side of said shielding metal cover is resin-molded.

4. A signal transmission cable with a connector according to claim 1, wherein said closed magnetic path core is a ferrite toroidal core.

5. A signal transmission cable with a connector according to claim 4, wherein said toroidal core has a divided structure.

6. A signal transmission cable with a connector according to claim 1, wherein said closed magnetic path core is a toroidal core having an insulating coat provided on its surface.

7. A signal transmission cable with a connector according to claim 6, wherein said toroidal core has a divided structure.

8. A signal transmission cable with a connector according to claim 1, wherein said closed magnetic path core is a toroidal core obtained by rolling a magnetic foil and providing an insulating coat on its surface.

9. A signal transmission cable with a connector according to claim 1, wherein said closed magnetic path core is a toroidal core obtained by rolling a magnetic foil having an insulating coat provided on its surface.

10. A signal transmission cable with a connector according to claim 1, wherein a pair of said connectors is connected to said shielded cable at each end thereof so as to form the same electrical and mechanical connection structure.