• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

In the current invention flat conductor cable having multiple flat conductors disposed in spaced, parallel association in a flat strip of insulating material is shielded by a metallic layer utilized by electroless and electrolytic plating. Flat cables, which have a number of ribbonlike conductors disposed in parallel, spaced arrangement within a strip of insulating material, are often made by laminating the conductors between thin, flexible insulating films. It needs to be noted that the cable for carrying a signal and the cable for carrying electric power are repeated alternately in the one flat cable formed by the fixture means. Conventionally, the flat cables have been designed such that signal cables for carrying signals and energy cables for supplying the electric energy have been disposed alternately for avoiding crosstalk between the indicators. It needs to be noted that the cables 41 of FIG. 5A are used for carrying the signals and designated in FIG. 5A as "S." FIG. 5B, on the other hand, exhibits the flat cable 24b within the state that the cables 41 are bonded to the fusible tape forty three at the underside apex. However, the electrical efficiency of the shield isn't affected by having the shield being relatively movable with respect to the tape cable.

Within the foregoing SCSI-II interface, then again, it's prescribed such that two rows of pins are offered in the connector and such that the pins for alerts are only in one of many foregoing two rows of the pins. The ensuing cable construction is extra flexible than round cable and it is thus advantageous to be used as an interconnecting medium between parts which move in relation to each other. Cable connecting sensitive digital components operating in proximity to tools which produces radio frequency energy or electrical noise must be surrounded with a protective steel sheath or shield to avoid transmission of spurious signals or "spikes." If essential, the shield may be connected with a floor conductor along the size of the cable to guarantee proper grounding of any interfering currents. In the course of the transmission of excessive-frequency alerts, the ground conductors located between adjacent sign-carrying conductors (which could also be each different or every third, fourth, etc. conductor within the tape cable) are controlling a significant portion of the characteristic impedance. A major goal of the bottom conductors within the flat cable is impedance management.

For such instances the h/D dimensions--by means of the current system--may be selected to control the shield's impact on the characteristic impedance inside a few (1-4) % only, thus nonetheless holding the advantages this invention represents. Copper is deposited at a rate of approximately 0.0001 inch per 2.1 minutes at a present density of fifty amperes per square foot and at 100 p.c efficiency. The flat conductors eleven might be made from any electrically conductive metal similar to copper. The number of conductors, the width and thickness thereof and the spacing between conductors will be different extensively, relying on the necessities for the actual cable. The thickness of height of the flat versatile tape cable, and accordingly the minimal spacing between the periphery of the shield (i.e., in cross section), is indicated in FIG. 2 by the reference character h. In addition, the extra efficient heat dissipation proven by flat cables allows larger currents to be carried per equal conductor cross part.

This invention relates to flat conductor cables and extra significantly to shielded flat cables. Connection of the shield to a floor conductor in such shielded cable has been obtained by exposing the flat surface of a number of of the conductors so that the shield is pressed in opposition to the conductor throughout lamination. Continuous and dependable contact between he shielding layer and a ground conductor is obtained by exposing a portion of the floor of the conductor alongside the length of the cable. The kind of shield structure and the jacket selected for different designs may be such that when the cable flexes the shield does not follow the surface of the dielectric extraordinarily tightly. The shield just isn't essentially bonded to the tape cable thereby enhancing the flexibility of the composite construction. FIG. 5 is an isometric view, partially damaged away, of a shielded cable having a perforated shield. FIGS.3A-3E present the connector 22 intimately, wherein FIG. 3A exhibits the contact part 25 of the connector 22 in a entrance view, FIG. 3B exhibits the contact half 25 in a plan view, and FIG. 3C reveals the contact half 25 in a side view.