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

FIELD OF THE INVENTION[0001]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[0002]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.[0003]Recently, flexible circuit board technology has also been applied to construct flat cables. The flexible circuit-board flat cables that are commonly used currently are constructed in different configurations that are either a single-sided board, a double-sided board, or a multiple-layered board, in order to meet the needs of applications that require different numbers of conductors for signal transmission.[0004]Adopting a flat cab...

AI Technical Summary

Benefits of technology

[0006]In view of the drawbacks of the known techniques, an objective of the present invention is to provide a bundled flexible flat circuit cable having a stack structure, whereby the stack structure allows the flat cable to reduce a width dimension of an end of the flat cable so that the end of the flexible flat circuit cable can easily extend through a bore defined in a hinge.

[0007]Another objective of the present invention is to provide a bundled flexible flat circuit cable that exhibits excellent electromagnetic shielding characteristics, which when combined with the features of stacking and bundling of the flat cable of the present invention, allows for the formation of an electromagnetic shielding layer on a flexible substrate of the flat cable and may also allow for forming a bundled structure with electromagnetic shielding material.

[0010]According to the present invention, a stacked arrangement is selectively formed so that the configuration of a signal transmission flat cable can be made to reduce the width dimension of an end of the flexible flat circuit cable. Thus, the sized reduced end of the flexible flat circuit cable can be easily extended through a small diameter of a bore defined in a hinge when the flexible flat circuit cable is being mounted to the hinge structure. 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 of the flexible substrate 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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