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EP0366046A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Shielded flat cable

Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1989-10-23
•
Granted: —
•
Expires: 2009-10-23
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Abstract

Abstract A shielded flat transmission cable for use in wiring electronic appliances having consistent low resistance and a high shielding effect. The cable comprises a plurality of insulated parallel conductors including a grounding conductor and signal transmitting conductors. The conductors and insulation layer are surrounded by a thin metal shielding material. An insulating film surrounds the outer surface of the shielding material. The shielding material is directly and metallically connected to the grounding conductor providing a good electrical contact between the shielding material and the grounding conductor. The connecting means employed can be a spot weld or any other equivalent means directly connecting said grounding conductor and said shielding material. In a first embodiment of the invention the insulation layer, shielding material, and insulating film are formed through lamination. In a second embodiment of the invention they are formed through winding.

Inventors

  • 👤 Yutaka C/O Kantoh Works Of Sumitomo Elec. Fujii
  • 👤 Taiji C/O Kantoh Works Of Sumitomo Elec. Oku
  • 👤 Haruo C/O Kantoh Works Of Sumitomo Elec. Saen

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 01:01
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/08; H01B7/0861; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4403; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0216; H05K1/0218

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 74 words
A flat transmission cable comprising: a plurality of separate parallel conductors including a grounding conductor and a signal transmitting conductor; an insulation layer covering the outer circumference of said conductors and separating each conductor; electrically conductive shielding material, surrounding said insulation layer, for shielding externally induced noise and interference; insulating film surrounding the outer circumference of said shielding material; and connecting means for joining said grounding conductor directly and metallically to said shielding material.
Claim 2
Dependent Claim 74 words
A flat transmission cable comprising: a plurality of separate parallel conductors including a grounding conductor and a signal transmitting conductor; an insulation layer covering the outer circumference of said conductors and separating each conductor; electrically conductive shielding material, surrounding said insulation layer, for shielding externally induced noise and interference; insulating film surrounding the outer circumference of said shielding material; and connecting means for joining said grounding conductor directly and metallically to said shielding material.
Claim 3
Dependent Claim 17 words
A flat transmission cable as recited in Claim 1 wherein said conductors are flat type conductive wires.
Claim 4
Dependent Claim 25 words
A flat transmission cable as recited in Claim 1 wherein said insulation layer comprises an insulating material laminated on the outer circumference of said conductors.
Claim 5
Dependent Claim 24 words
A flat transmission cable as recited in Claim 1 wherein said insulation layer comprises an insulating material wound on the circumferences of the conductors.
Claim 6
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 further comprising an adhesive layer formed on the inner surface of said shielding material.
Claim 7
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 wherein said shielding material is laminated on the outer circumference of said insulation layer.
Claim 8
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 further comprising an adhesive layer formed on the inner surface of said shielding material.
Claim 9
Dependent Claim 18 words
A flat transmission cable as recited in Claim 1 wherein said shielding material comprises a thin metal tape.
Claim 10
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 wherein said shielding material is wound on the outer circumference of said insulation layer.
Claim 11
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 wherein said insulating film is laminated on the outer circumference of said shielding material.
Claim 12
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 further comprising an adhesive layer formed on the inner surface of said insulating film.
Claim 13
Dependent Claim 23 words
A flat transmission cable as recited in Claim 1 wherein said insulating film is wound on the outer circumference of said shielding means.
Claim 14
Dependent Claim 25 words
A flat transmission cable as recited in Claim 1 wherein said connecting means comprises a spot weld joining said grounding conductor with said shielding material.

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