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Piece-separating type central framework cable

A central skeleton and sliced ​​technology, which is applied in the field of wires and cables, can solve the problems of voice communication that cannot satisfy users and the impact of crosstalk, and achieve the effects of improving crosstalk, good electrical performance, and convenient production

Inactive Publication Date: 2010-04-14
上海汉欣电线电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to the development of information technology, great changes have taken place in the way users transmit and obtain information. Traditional voice communication is far from meeting the needs of users, and more digital communication is used.
Digital communication has relatively high requirements on various electrical properties of transmission cables, especially for crosstalk between pairs of cables. The existing cat5e cables require a transmission frequency of 100MHz and need to support duplex applications, cat6 Cables are required to reach a transmission frequency of 250MHz. These cables are generally composed of 24 pairs or 25 pairs of twisted cable core wires. Due to the large number of cable core pairs, the crosstalk between them is relatively large.

Method used

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  • Piece-separating type central framework cable
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  • Piece-separating type central framework cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] See attached figure 1 , attached image 3 , the present invention includes a cable core 6 and a sheath 5. The cable core 6 is composed of a sub-unit cable core 2 arranged on a central skeleton 3, and the sub-unit cable core 2 is composed of four pairs of twisted wires 1 all arranged on a "ten"-shaped skeleton 8; the twisted wire 1 is formed by twisting two insulated core wires 7; the central frame 3 is a sleeve 10 with six segments 9, and the segments 9 are radially fixed on the circumference of the outer wall of the sleeve 10 , the end face of the central skeleton 3 is in the shape of seven honeycombs, and the sub-unit cable core 2 is arranged in the honeycombs.

[0011] The above-mentioned seven groups of sub-unit cable cores 2 composed of four pairs of twisted wires 1 are fed into the cable forming machine together with the piece-type central skeleton 3 and the "ten"-shaped skeleton 8, and then form a stable structure after cable formation. The cable extruder unifo...

Embodiment 2

[0013] See attached figure 2 ~ attached image 3 , the cable core 6 of the present invention is composed of a sub-unit cable core 2 arranged on a sliced ​​central frame 3, the sub-unit cable core 2 is four pairs of twisted wires 1, and the twisted wire 1 is twisted by two insulated core wires 7 combined; the central frame 3 is a sleeve 10 with six segments 9, the segments 9 are radially fixed on the circumference of the outer wall of the sleeve 10, the end faces of the central frame 3 are seven honeycomb-shaped, and the sub-unit cable core 2 are set inside the cell.

[0014] The above-mentioned seven sets of core wire groups 2 composed of four pairs of twisted wires 1 are sent to the cable forming machine together with the split central frame 3, and after forming a stable structure by cable extruder, the cable core 6 A layer of sheath 5 is uniformly extruded outside, and the sheath 5 and the cable core 6 are tightly bundled into one. In this case, the shielded cable only n...

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Abstract

The invention discloses a piece-separating type central framework cable, comprising a cable core and a sheath; and the piece-separating type central framework cable is characterized in that the cable core consists of a subunit cable core arranged on a central framework, and the subunit cable core is composed of a plurality of pairs of stranded wires or a plurality of pairs of stranded wires provided with cross-shaped framework; the central framework is a sleeve provided with a plurality of separated pieces which are fixedly arranged on the circumference of the outer wall of the sleeve in a radial manner; the end surface of the central framework is in the shape of honeycomb, in which the subunit cable core is arranged; and the sheath is arranged outside the cable core which is probably provided with a shielding layer, and the sheath is tightly bound with the cable core as a whole. The piece-separating type central framework cable greatly improves the performance of near-end crosstalk and far-end crosstalk of the cable by means of the effective separation of the honeycomb-shaped piece-separating type central framework, has simple structure and convenient manufacture, and meets the increasing transmission requirement of modern communication better.

Description

technical field [0001] The invention relates to cables and electric wires, in particular to a split-type center skeleton cable. Background technique [0002] In recent years, due to the development of information technology, great changes have taken place in the way users transmit and obtain information. Traditional voice communication is far from meeting the needs of users, and more digital communication is used. Digital communication has relatively high requirements on various electrical properties of transmission cables, especially for crosstalk between pairs of cables. The existing cat5e cables require a transmission frequency of 100MHz and need to support duplex applications, cat6 Cables are required to reach a transmission frequency of 250MHz. These cables are generally composed of 24 or 25 twisted cable core pairs. Since there are many pairs of cable cores, the crosstalk between them is relatively large. Contents of the invention [0003] The object of the present ...

Claims

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Application Information

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IPC IPC(8): H01B11/04
Inventor 汪家克朱世伟任卫平张坤明
Owner 上海汉欣电线电缆有限公司
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