Special Cat-5e cable structure for aerospace and preparation method of cable structure

Abstract

The invention discloses a special Cat-5e cable structure for aerospace. The cable structure comprises a white-blue twisted wrapping core, a white-orange twisted wrapping core and control wires; the white-blue twisted wrapping core, white-orange twisted wrapping core and control wires are twisted to form a cable body structure; the innermost layers of the white-blue twisted wrapping core and the white-orange twisted wrapping core include a first cable core pair and a second cable core pair respectively, and the first cable core pair and the second cable core pair are wrapped in microporous polytetrafluoroethylene tapes respectively; each microporous polytetrafluoroethylene tape is wrapped in a polyimide tape; each polyimide tape is wrapped in a single-side plastic-aluminum composite tape; the cable body structure is wrapped in a double-side metal plastic-aluminum composite tape; a silvering copper wire braided shielding layer is arranged outside the double-side metal plastic-aluminum composite tape; and a fluorinated ethylene propylene sheath is extruded outside the silvering copper wire braided shielding layer. The cable structure of the invention is anti-oxidation, resistant to high and low temperature, low in weight, low in structural echo loss, resistant to radiation and capable of transmitting control signals.

Description

technical field [0001] The invention relates to the technical fields of category five super network cables and aerospace, in particular to a structure and a preparation method of a special category five super cable for aerospace. Background technique [0002] Category 5e network cable, that is, Category 5e twisted pair, refers to Category 5e unshielded twisted pair (UTP—Unshielded Twisted Pair) and Category 5e shielded twisted pair. Unshielded twisted pair cables are made up of twisted pairs and a plastic sheath. Category 5 refers to five different quality levels defined by the International Electrical Industries Association for twisted-pair cables. The UTP currently in use can be divided into Category 3, Category 4, Category 5, Category 5e, Category 6, and Category 6e. [0003] At present, ordinary Category 5e cables have the following situations: ordinary products use polyethylene or polyfluoroethylene propylene as insulation materials, polyethylene is not resistant to h...

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Problems solved by technology

[0003] At present, ordinary Category 5e cables have the following situations: ordinary products use polyethylene or polyfluoroethylene propylene as insulation materials, polyethylene is not resistant to high temperatures, and polyfluoroethylene propylene has a relatively high density (2.17g / cm3), resulting in products The weight is heavy, which reduces the carrying capacity of the aircraft. In the aerospace field, the self-importance of the equipment is strictly controlled, and the high-altitude environment is harsh. It is also necessary for the network cable to withstand the extreme temperature, which cannot be done by the existing ordinary super five cables. At this point, the problem needs to be solved

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