Flexible circuit cable with at least two bundled wire groups

Abstract

Disclosed is a flexible circuit cable with at least two bundled wire groups (34A, 34B). The circuit cable (3) has first and second ends (31, 32) respectively connected to first and second connection sections (1, 2). The circuit cable (3) includes a cluster section (33), which is formed of a plurality of cluster wires (331) formed by slitting the circuit cable (3). The cluster section (33) includes at least two independent bundles (34A, 34B), which are formed by dividing the cluster wires (331) of the circuit cable (3) into different signal groups (L, G, S, SH, SL) according to electrical signals transmitted therethrough. Bundling members (4A, 4B) are used to the cluster wires (331) of the independent bundles (34A, 34B) according to predetermined bundling modes. Further, the circuit cable (3) has a surface forming a shielding conductive layer (37) for electromagnetic interference protection and impedance control for internal signals of the circuit cable (3).

Description

technical field [0001] The invention relates to a structural design of a signal transmission cable, in particular to a flexible circuit cable with more than two groups of groups. Background technique [0002] In various electronic devices used today, as the amount of data transmitted by signal lines is increasing, the number of signal transmission lines required is not only increasing, but also the frequency of transmission signals is getting higher and higher, so that in high-frequency transmission The differential mode (Differtial Mode) is often designed to reduce electromagnetic interference (EMI). For example, USB or LVDS signals use this transmission technology extensively to reduce electromagnetic interference. However, after the assembly of these signal transmission lines is completed, it is generally necessary to bundle each signal transmission line together, on the one hand for positioning, and on the other hand for protection. In today's signal transmission line b...

AI Technical Summary

Problems solved by technology

However, the technology of clustering and wiring will make the circuit board design subject to many restrictions on the layout

Because when each signal transmission line in the bundled cable is connected to the signal contact position of the circuit board, each signal contact needs to be arranged on the circuit board at a certain interval, not all in the same block, but because all the lines are common. Because of the same reason, the extension length of each signal transmission line is longer, resulting in an increase in the cost of the wire

And all the signal transmission lines are rolled together in a single bundle structure, which will form a large bundle, so that it will occupy a huge space on the circuit board, making it impossible for electronic products to meet the requirements of thinner and thinner. The design of the space configuration of the board will also be limited due to the inability to effectively use it, increasing the difficulty of the design