Multi-channel high-speed transmission bus cable used for aerospace, and manufacture method thereof

A high-speed transmission, aerospace technology, used in cable/conductor manufacturing, communication cables, insulated cables, etc., can solve the problems of unstable attenuation, tetrafluoroethylene lamination deformation, etc., to reduce the use of raw materials and reduce the dielectric constant. , the effect of reducing the wrapping angle

Active Publication Date: 2019-04-09
上海传输线研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The problem to be solved by the present invention is to overcome the problems existing in the prior art, and to provide a manufacturing method for multi-channel high-number transmission bus cables used in aerospace. The cables obtained by using the manufact

Method used

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  • Multi-channel high-speed transmission bus cable used for aerospace, and manufacture method thereof
  • Multi-channel high-speed transmission bus cable used for aerospace, and manufacture method thereof
  • Multi-channel high-speed transmission bus cable used for aerospace, and manufacture method thereof

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Embodiment 1

[0044] In the first embodiment, the center-filled rope 1 is made of PTFE with an outer diameter of 1.4mm, the silver-plated copper alloy wire stranded conductor 2 is made of brass or zinc or silver, and the sintered transmission single wire 3 is sintered at a high temperature after a narrow bandwidth package process . The transmission unit PTFE filling rope 4 is made of PTFE material with an outer diameter of 0.7mm, and the transmission unit braided layer 5 is made of silver-plated copper material, with a braiding density ≥95. The inner sheath 6 of the transmission unit is made of PFA, the foam layer 7 of the transmission group is made of PTFE, the braided layer 8 of the transmission group is made of silver-plated copper, and the weaving density is ≥95. The outer sheath 9 of the transmission group can be made of PFA. The final outer diameter of the cable can be 4.0mm, the characteristic impedance of the product is 100±10Ω, and the transmission frequency is 400MHz.

[0045] Figu...

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Abstract

The invention relates to a multi-channel high-speed transmission bus cable used for aerospace, and a manufacture method thereof, and aims to solve the problems of poor structure stability and low compressive strength of an existing transmission bus cable. The manufacture method for the multi-channel high-speed transmission bus cable used for aerospace comprises the following steps of carrying outlapped insulation, sintering insulation, star twisting, weaving, inner sheath extrusion molding, transmission group star twisting, shielding cable manufacture and outer sheath extrusion molding. By use of the manufacture method for the multi-channel high-speed transmission bus cable used for aerospace, the defects that a traditional method needs to determine a lapping pitch through the external diameter of a conductor, lapping bandwidth, lapping band thickness and a target overlapping rate are overcome, the manufactured cable realizes high compatibility among multiple signaling protocols, meanwhile, the problem that attenuation is unstable since low-density tetrafluoroethylene generates laminating deformation during processing can be solved, and the cable can stably work under a severe environment.

Description

Technical field [0001] The invention belongs to the technical field of cable manufacturing, and specifically relates to a multi-channel high-speed transmission bus cable for aerospace and a manufacturing method thereof. Background technique [0002] With the continuous advancement of aerospace science and technology, the field of aerospace technology applications continues to expand, and the functions of spacecraft (spacecraft including satellites, manned and cargo spacecraft, space stations, lunar probes, deep space probes, etc.) are also continuously improved. The intensity of data processing and the amount of information exchanged by the internal equipment system of the spacecraft are increasing. At present, most of the internal equipment connections of the spacecraft are point-to-point transmission by means of a single bus. There are six main disadvantages caused by this: [0003] 1. The existing aerospace transmission bus cables close to the present invention have a large num...

Claims

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Application Information

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IPC IPC(8): H01B11/00H01B11/06H01B7/00H01B7/02H01B7/17H01B7/18H01B13/00H01B13/02H01B13/10H01B13/26H01B13/24
CPCH01B7/00H01B7/02H01B7/17H01B7/1895H01B11/005H01B11/06H01B13/0016H01B13/02H01B13/10H01B13/24H01B13/2606
Inventor 任翔纪延磊张晋
Owner 上海传输线研究所
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