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A multi-channel high-speed transmission bus cable for aerospace and its manufacturing method

A high-speed transmission, aerospace technology, applied in the direction of cable/conductor manufacturing, communication cables, insulating cables, etc., can solve the problems of tetrafluoroethylene lamination deformation, attenuation instability, etc., to reduce the dielectric constant and reduce the use of raw materials , the effect of reducing the size of the space

Active Publication Date: 2020-12-11
THE 23RD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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  • 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 manufacturing method can solve the compatibility between multi-signal protocols, and can Stable work in harsh environments; at the same time solve the problem of unstable attenuation due to lamination deformation of low-density tetrafluoroethylene during cable processing

Method used

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  • A multi-channel high-speed transmission bus cable for aerospace and its manufacturing method
  • A multi-channel high-speed transmission bus cable for aerospace and its manufacturing method
  • A multi-channel high-speed transmission bus cable for aerospace and its manufacturing method

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Embodiment 1

[0044] Embodiment 1, wherein the central filling rope 1 is made of PTFE material, the outer diameter is 1.4 mm, 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 using a narrow bandwidth wrapping process . The PTFE filling rope 4 of the transmission unit is made of PTFE with an outer diameter of 0.7 mm, and the braided layer 5 of the transmission unit is made of silver-plated copper with a braiding density of ≥95. The inner sheath 6 of the transmission unit is made of PFA material, the foam layer 7 of the transmission group is made of PTFE material, the braided layer 8 of the transmission group is made of silver-plated copper material, and the weaving density is ≥ 95, and the outer sheath 9 of the transmission group can be made of PFA material. The final outer diameter of the cable can be 4.0mm, the characteristic impedance of the product is 100±10Ω, a...

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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 production, and in particular 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 technology, the fields of aerospace technology applications continue to expand, and the functions of spacecraft (spacecraft including satellites, manned and cargo spacecraft, space stations, lunar probes, deep space probes, etc.) 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 use a single bus for point-to-point transmission. There are mainly six disadvantages caused by this: [0003] 1. The number of existing aerospace transmission bus cables close to the present invention is installed inside the spacecraft, which ultimatel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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 THE 23RD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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