Bundled flexible flat circuit cable

Abstract

A bundled flexible flat circuit cable includes a flexible substrate that forms at least one cluster section having an end forming at least one first connection section and an opposite end forming at least one second connection section. Both the first and second connection sections or one of the first and second connection sections form a stack structure. The flexible substrate can be of a structure of single-sided or double-sided substrate and may additionally include an electromagnetic shielding layer. A bundling structure is provided to bundle the cluster section at a predetermined location to form a bundled structure. The bundling structure can be made of a shielding material, an insulation material, or a combination of shielding material and insulation material.

Description

RELATED APPLICATIONS[0001]This application is a Divisional patent application of co-pending application Ser. No. 12 / 729,677, filed on 23 Mar. 2010, now pending. The entire disclosure of the prior application, Ser. No. 12 / 729,677, from which an oath or declaration is supplied, is considered a part of the disclosure of the accompanying Divisional application and is hereby incorporated by reference.FIELD OF THE INVENTION[0002]The present invention relates to a single transmission flat cable, and in particular to a bundled flexible flat circuit cable with a stack structure.BACKGROUND OF THE INVENTION[0003]A conventional flat cable comprises a plurality of conductors covered with insulation arranged to joint each other in a side-by-side fashion to form a cable having a flat structure. The flat cable is commonly used for transmission of signal in a variety of electrical appliances, electronic facility, computer facility, and communication facility.[0004]Recently, flexible circuit board te...

AI Technical Summary

Benefits of technology

"The present invention provides a solution for the problems of conventional techniques by providing a flexible flat circuit cable with a stack structure that allows for easy extension through a small diameter of a hinge. The cable has a bundle structure that reduces the width dimension of the end of the cable and exhibits excellent electromagnetic shielding characteristics. The flexible substrate has a cluster section that includes plural cluster strips that are formed by slitting the flexible substrate along an extension direction of the flexible substrate. The cluster section has an end forming at least one first connection section and an opposite end forming at least one second connection section. Both the first and second connection sections or one of the first and second connection sections comprises a stack structure, which is formed by folding two opposite side stacking zones or one of the two opposite side stacking zones of the connection section along a respective fold line to have the side stacking zone stacked on at least a portion of a central zone of the connection section that is located between the two opposite side stacking zones. The flexible substrate can be of a single-sided or double-sided structure and may additionally comprise an electromagnetic shielding layer. The bundling structure that bundles the cluster section of the flexible flat circuit cable together provides a function to restrict flexing of each cluster strip of the cluster section and also offers electromagnetic shielding to the cluster section."

Problems solved by technology

However, certain problems exist.

For example, in an attempt to set a flexible flat circuit cable in a hinge of an electronic device, extending a connection socket or a terminal plug provided at an end of the flat cable through the small diameter of the bore of the hinge becomes a problem that is hard to handle.

Further, even though the connection socket or the terminal plug can readily extend through the small diameter of the hinge bore, the cluster of strips is susceptible to arbitrary distortion and external electromagnetic interference.

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