Space-level nuclear electromagnetic interference resistant data bus cable and manufacturing method thereof

Abstract

The invention relates to a space-level nuclear electromagnetic interference resistant data bus cable and a manufacturing method thereof. The space-level nuclear electromagnetic interference resistant data bus cable comprises two insulated wire sets, two tubular filling cores, a shielding layer and a sheath, wherein the insulated wire sets are formed by wrapping an insulating layer outside multiple conductors in an extruded manner, the two insulated wire sets and the two tubular filling cores are stranded to form a cable, and the shielding layer is arranged outside the cable and wrapped by the sheath in an extruded manner. The shielding layer is in a three-layer structure, both an inner shielding layer and an outer shielding layer are weaved silver-plated copper wire shielding layers, a middle shielding layer is a wrapped nuclear electromagnetic interference resistant nickel-based alloy composite tape shielding layer in a three-layer structure, both a first layer and a third layer are polyimide film shielding layers, and a second layer is the nuclear electromagnetic interference resistant nickel-based alloy composite tape shielding layer. The manufacturing method includes steps: firstly, conductor processing; secondly, insulation processing; thirdly, tubular filling core processing; fourthly, stranded cable processing; fifthly, shielding layer processing; and sixthly, sheath processing. The space-level nuclear electromagnetic interference resistant data bus cable has the advantages of light weight, high nuclear electromagnetic interference resistance, radiation resistance, atomic oxygen resistance and good thermal vacuum outgassing.

Description

technical field [0001] The invention relates to a space-level anti-nuclear electromagnetic interference data bus cable and a manufacturing method. The cable is suitable for digital time-division system command / response multiplex composite signal transmission data bus for aerospace systems, ground vehicle systems, ship systems and other weaponry systems, and is a high-end product in the field of data bus cable technology. Background technique [0002] With the rapid development of the communication electronics industry such as aerospace systems, ground vehicle systems, ship systems and other weaponry systems, the requirements for informatization and integration continue to increase, and the requirements for 1553B data bus cables are also getting higher and higher. Lightweight, miniaturized, high temperature resistance, atomic oxygen resistance, radiation resistance, good thermal vacuum outgassing performance, and higher resistance to nuclear electromagnetic interference. Exi...

AI Technical Summary

Problems solved by technology

Existing ordinary data bus cables generally use polyfluoroethylene propylene and polytetrafluoroethylene as insulation and filling core, the filling core adopts solid structure, and the outer shielding layer is braided with tinned copper wire, silver plated copper wire or aluminum-plastic composite With wrapping structure, this kind of data bus cable is heavy, not resistant to atomic oxygen, not resistant to radiation, and generally resistant to nuclear electromagnetic interference, which cannot meet the working requirements of the system

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