CN203377029U - Aerial 422 data transmission cable - Google Patents

Abstract

The utility model discloses an aerial 422 data transmission cable. The aerial 422 data transmission cable includes a plurality of groups of conductors; two conductive wire cores coated with tetrafluoroethylene-hexafluoropropylene copolymer insulating layers are stranded with each other and bunched so as to from each group of conductors; each group of conductors is wrapped with a branch shielding wrapping layer; the plurality of groups of conductors which are coated with the branch shielding wrapping layers, with a filling core adopted as a center, are stranded with each other and bunched so as to form a cable core, wherein the filling core is a solid or hollow plastic rope; the exterior of the filling core is provided with a protective player made of an elastic insulating material; the exterior of the cable core is coated with a total shielding combination layer; a bare grounding wire is arranged between the total shielding combination layer and the cable core; and the exterior of the total shielding combination layer is provided with a tetrafluoroethylene-hexafluoropropylene copolymer sheath. According to the aerial 422 data transmission cable of the utility model which is novel in structure design, tetrafluoroethylene-hexafluoropropylene copolymer is selected to make the insulating layers or the sheath, and at the same time, designs such as a multiple-shielding structure, the filling core and the bare grounding wire are adopted; and therefore, the aerial 422 data transmission cable is advantageous in light weight, high and low temperature resistance, corrosion resistance, weather resistance, flame retardance and excellent electrical properties, and can support ultra high-frequency data transmission.

Description

A 422 data transmission cable for aviation

Technical field:

The utility model relates to a data transmission cable, in particular to a 422 data transmission cable for aviation.

Background technique:

For the 422 data transmission cable used in aviation, the previous structural design has defects, which cannot meet the needs of high-speed data transmission in the aviation environment, thus causing immeasurable losses to the aviation industry.

Utility model content:

In order to make up for the existing technical problems, the purpose of this utility model is to provide a 422 data transmission cable for aviation, which has light weight, high and low temperature resistance, corrosion resistance, weather resistance, flame retardancy and excellent electrical performance, and can support ultra-high frequency data transmission. Excellent characteristics such as transmission.

The technical scheme of the utility model is as follows:

The 422 data transmission cable for aviation is characterized in that it includes an array of conductor groups, and each conductor group is composed of two conductive cores wrapped in a polyfluoroethylene propylene insulating layer twisted into bundles, and the polyfluoroethylene propylene insulating layer is wrapped. The outer diameter of the final conductive core is generally 1.22~1.38mm, and each conductor group is covered with a sub-shielding wrapping layer, and the array conductor groups covered with the sub-shielding wrapping layer are twisted into bundles with the filler core as the center to form a cable. core, the filling core is a solid or hollow plastic rope, and the filling core is provided with a protective layer made of elastic insulating material. There is a bare ground wire between them, and a polyperfluoroethylene propylene sheath layer is provided outside the overall shielding composite layer.

The 422 data transmission cable for aviation is characterized in that: the overall shielding combination layer is composed of an inner composite aluminum foil wrapping layer and an outer layer of silver-plated copper wire or tin-plated copper wire braid.

The 422 data transmission cable for aviation is characterized in that: the outer diameter of the cable core covered with a polyperfluoroethylene propylene sheath layer is generally 3.8-4.2 mm after being cabled.

The utility model has the advantages of:

The utility model has a novel structural design, uses perfluoroethylene propylene as the insulating layer or sheath layer, and adopts multiple shielding, filling cores, bare grounding wires and other designs at the same time, so that the cable has light weight, high and low temperature resistance, corrosion resistance, weather resistance, Flame retardant and excellent electrical properties, can support ultra-high frequency data transmission and other excellent characteristics.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Detailed ways:

See Figure 1:

422 data transmission cable for aviation, including array conductor groups, each conductor group has two conductive wire cores 1 wrapped with FEP insulation layer 2 twisted into bundles, after wrapping FEP insulation layer 2 The outer diameter of the conductive wire core 1 is generally 1.22~1.38mm, and each group of conductors is covered with a sub-shielding wrapping layer 3, and the array conductor groups covered with the sub-shielding wrapping layer 3 are stranded with the filling core 4 as the center. The bundle constitutes the cable core, the filling core 4 is a solid or hollow plastic rope, the filling core 4 is provided with a protective layer 5 made of elastic insulating material, the cable core is covered with a total shielding composite layer 6, and the total shielding composite layer A bare ground wire 7 is provided between 6 and the cable core, and a polyperfluoroethylene propylene sheath layer 8 is provided outside the total shielding combination layer 6 .

The total shielding combination layer 6 is composed of an inner composite aluminum foil wrapping layer 6-1 and an outer layer of silver-plated copper wire or tinned copper wire braid 6-2.

The outer diameter of the cable core coated with polyperfluoroethylene propylene sheath layer 8 is generally 3.8 ~ 4.2 mm after being cabled.

Use characteristics of the utility model: rated voltage: the rated voltage of the cable is AC 600V; rated temperature: the rated working temperature of the cable is (-55 ~ +200) ° C; minimum bending radius: 8 times the outer diameter of the product.

Claims (3)

1. A 422 data transmission cable for aviation, characterized in that: it includes an array of conductor groups, each group of conductor groups has two conductive wire cores wrapped in polyperfluoroethylene propylene insulating layers twisted into bundles, and wrapped in polyfluoroethylene The outer diameter of the conductive wire core behind the ethylene propylene insulation layer is generally 1.22~1.38mm, and each conductor group is covered with a sub-shielding wrapping layer, and the array conductor groups covered with the sub-shielding wrapping layer are stranded with the filler core as the center The composite bundle constitutes the cable core, the filling core is a solid or hollow plastic rope, and the filling core is provided with a protective layer made of elastic insulating material. There is a bare ground wire between the core and the cable core, and a polyperfluoroethylene propylene sheath layer outside the overall shielding composite layer. 2. The 422 data transmission cable for aviation according to claim 1, characterized in that: the overall shielding composite layer is braided by the composite aluminum foil of the inner layer around the cladding layer and the silver-plated copper wire or tin-plated copper wire of the outer layer layer composition. 3. The 422 data transmission cable for aviation according to claim 1, characterized in that: the outer diameter of the cable core coated with a polyperfluoroethylene propylene sheath layer is generally 3.8-4.2 mm after being cabled.

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