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Multi-impedance flat cable

A technology of core wire and multi-layer structure, applied in the field of flexible cable, can solve problems such as burden and difficulty in connector assembly

Inactive Publication Date: 2019-05-07
DUJIANGYAN JINXIANG DECORATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Flexible flat cable (FFC, Flexible Flat Cable) is an important part of the connection and signal transmission between electronic devices. It not only makes the connection of devices more compact and regular, thereby improving performance and reliability, but also facilitates design and assembly. Depending on the device, the flexible flat cable must adapt to the characteristic matching requirements of the specific device in order to obtain high transmission efficiency and quality. The traditional flexible flat cable is mainly assembled from an insulating layer and a wire, and the wires with the same width and thickness are equally spaced. The arrangement is wrapped inside the insulating layer, and the characteristics of each wire are the same. To use this kind of flexible flat cable, it is necessary to carry out secondary circuit design on the connectors at both ends of the flexible flat cable, so as to realize the matching between the flexible flat cable and the characteristics of the device. It caused a burden, and finally appeared to directly adjust the geometrical section, width, thickness, and spacing of the wires to form flexible cables with different characteristics. Although the application is more convenient, it is necessary to continuously modify the mold to meet the deformation requirements during production. Causes assembly difficulties when mating with the connector

Method used

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  • Multi-impedance flat cable

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Embodiment Construction

[0009] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0010] like figure 1 As shown, the flexible flat cable adopts a four-layer covering structure and has three impedance characteristics. A plurality of basic core wires 1 with uniform specifications are arranged at equal intervals and wrapped in the insulator 2, and are separated by the insulator 2. The upper and lower surfaces of the insulator There are equal-spaced grooves 4, single grooves and double grooves arranged at intervals, the basic core wire 1 and the insulator 2 form the cable matrix, and the two sides of the cable are covered with metal covering layers 3, of which the left metal covering Layer 3 is composed of two separated pieces of silver foil, which are facing up and down and covering the upper and lower sides of the insulator 2, while the metal covering layer 3 on the right side is covered by an integrated aluminum foil on the side corrugation and exte...

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Abstract

The invention discloses a multi-impedance flat cable. With a multilayer structure, the cable comprises basic core wires (1) and an insulator (2). The basic core wires (1) are uniform in specificationand are arranged in the insulator (2) by wrapping at equal intervals. The cable is characterized in that a metal covering layer (3) covers the outer side of the insulator (2), and the position of themetal covering layer (3) corresponds to the position of the core wires needing impedance adjustment. The flat cable adopts a unified standard core wire base body, impedance adjustment is carried out by additionally arranging the metal covering layer, so that multi-impedance of the flat cable is realized, the transmission effect is excellent, and the flat cable is convenient to produce and assemble.

Description

technical field [0001] The invention relates to a flexible cable, in particular to a multi-impedance cable. Background technique [0002] Flexible flat cable (FFC, Flexible Flat Cable) is an important part of the connection and signal transmission between electronic devices. It not only makes the connection of devices more compact and regular, thereby improving performance and reliability, but also facilitates design and assembly. Depending on the device, the flexible flat cable must adapt to the characteristic matching requirements of the specific device in order to obtain high transmission efficiency and quality. The traditional flexible flat cable is mainly assembled from an insulating layer and a wire, and the wires with the same width and thickness are equally spaced. The arrangement is wrapped inside the insulating layer, and the characteristics of each wire are the same. To use this kind of flexible flat cable, it is necessary to carry out secondary circuit design o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/02H01B7/04H01B7/08
Inventor 曾甫元
Owner DUJIANGYAN JINXIANG DECORATION ENG