CN218918495U - 4-core communication cable - Google Patents

Abstract

The utility model discloses a 4-core communication cable, which comprises four groups of mutually twisted wire cores, wherein the outer sides of the wire cores are coated with polypropylene resin insulating layers, the outer sides of the polypropylene resin insulating layers are provided with aramid yarn twisting winding layers, the outer sides of the aramid yarn twisting winding layers are provided with copper-plastic composite tape wrapping layers, the outer sides of the copper-plastic composite tape wrapping layers are provided with net-shaped shielding layers, the outer sides of the net-shaped shielding layers are provided with polytetrafluoroethylene layers, the outer sides of the wire cores are provided with PFA layers, the outer sides of the PFA layers are provided with polypropylene resin insulating layers, each group of wire cores, each PFA layer and each polypropylene resin insulating layer are of an integrated structure, a nylon rope is arranged between the integrated structures, and the inner sides of the polytetrafluoroethylene layers are coated with ceramic powder layers.

Description

4-core communication cable

Technical Field

The utility model relates to the technical field of communication cables, in particular to a 4-core communication cable.

Background

Communication cables are cables that transmit telephone, telegram, facsimile documents, television and radio programs, data and other electrical signals. Is formed by twisting more than one pair of mutually insulated wires. Compared with overhead open wires, the communication cable has the advantages of large communication capacity, high transmission stability, good confidentiality, less influence of natural conditions and external interference, and the like.

Along with the development of the age, the four-core communication cable is widely applied, and in the use process of the cable, due to the conditions of extrusion, tensile signal interference and the like, the traditional cable which is simply combined by a wire core, a copper-plastic composite tape wrapping layer and an insulating material cannot meet some extreme conditions, and based on the traditional cable, the 4-core communication cable is better in tensile effect, stronger in anti-interference capability and more stable in structure.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the 4-core communication cable which has the advantages of improving the stretching resistance, meeting the requirements of good high temperature resistance, improving the anti-interference capability of the cable and having a more stable internal structure, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a core communication cable, includes four groups of sinle silk of intertwisting each other, the cladding of sinle silk outside has the polypropylene resin insulating layer, the polypropylene resin insulating layer outside is equipped with aramid yarn winding layer, the aramid yarn winding layer outside is equipped with copper and moulds the compound area around the covering, copper and mould the compound area around the covering outside is equipped with netted shielding layer, netted shielding layer outside is equipped with polytetrafluoroethylene layer, the sinle silk outside is equipped with the PFA layer, the PFA layer outside is equipped with the polypropylene resin insulating layer, and every group sinle silk, PFA layer and polypropylene resin insulating layer structure as an organic whole, establishes to have a nylon rope between the integral structure, polytetrafluoroethylene in situ side scribbles 1-3 mm's ceramic powder layer.

Further, the copper-plastic composite tape wrapping layer is 2-3 layers.

Further, the thickness of the ceramic powder layer is 2.2mm.

Compared with the prior art, the utility model has the beneficial effects that: the present 4-core communication cable is provided,

1. the PFA layer is arranged on the outer side of the wire core, the polypropylene resin insulating layer is arranged on the outer side of the PFA layer, and each group of wire cores, the PFA layer and the polypropylene resin insulating layer are of an integrated structure, the PFA layer has good corrosion resistance and certain high temperature resistance, and besides, the arrangement of the integrated structure also increases the stability of the inside of the cable.

2. And a nylon rope is arranged between the wire core and the outer coating layer, so that the overall tensile resistance of the cable is improved, and the excessive stretching of the wire core is avoided.

3. The ceramic powder layer is coated on the inner side of the polytetrafluoroethylene layer, so that the insulation capacity and the high temperature resistance of the cable are improved, and the installation and use of the cable under severe conditions are improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model.

In the figure: 1 wire core, 2 PFA layer, 3 polypropylene resin insulating layer, 4 nylon rope, 5 aramid fiber twisted winding layer, 6 copper plastic composite tape winding layer, 7 netted shielding layer, 8 ceramic powder layer, 9 polytetrafluoroethylene layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a 4 core communication cable, includes four groups of sinle silk 1 of intertwisting each other, the cladding of sinle silk 1 outside has polypropylene resin insulating layer 3, polypropylene resin insulating layer 3 outside is equipped with aramid yarn twist winding layer 5, has improved the inside stability of cable, has satisfied certain high temperature resistance, aramid yarn twist winding layer 5 outside is equipped with copper plastic composite tape and winds the covering 6, copper plastic composite tape winds the covering 6 and is 2-3 layers, copper plastic composite tape winds the covering 6 outside and is equipped with netted shielding layer 7, has played good cladding effect and shielding effect, has satisfied the needs of signal transmission and shielding, netted shielding layer 7 outside is equipped with polytetrafluoroethylene layer 9, has played good insulating effect, sinle silk 1 outside is equipped with PFA layer 2, PFA layer 2 outside is equipped with polypropylene resin insulating layer 3, and every group's sinle silk 1, PFA layer 2 and polypropylene resin insulating layer 3 are integrated into one structure, establish to have a nylon rope 4 between the integrated structure, have promoted the stretch resistance of cable, polytetrafluoroethylene layer 9 inboard scribbles 1-3 mm's ceramic powder.

When in use: the cable core 1 outside is equipped with PFA layer 2, PFA layer 2 outside is equipped with polypropylene resin insulating layer 3, and every group of cable core 1, PFA layer 2 and polypropylene resin insulating layer 3 are integrated into one piece structure, PFA layer 2 has played good corrosion resistance and has played certain high temperature resistance, in addition, the setting of integrated structure has also increased the inside stability of cable, be equipped with nylon rope 4 between the cladding of cable core 1 and outside, the holistic stretch-proofing performance of cable has been improved, the overstretching of cable core has been avoided, the inboard application of polytetrafluoroethylene layer 9 has ceramic powder layer 8, insulating ability and the high temperature resistant effect of cable have been improved, the installation of cable under adverse condition has been improved and has been used.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a 4 core communication cable, includes four groups of sinle silk of intertwisting each other, the cladding of sinle silk outside has the polypropylene resin insulating layer, the polypropylene resin insulating layer outside is equipped with aramid yarn twine winding layer, the aramid yarn twine winding layer outside is equipped with copper and moulds the compound area around the covering, copper is moulded the compound area around the covering outside is equipped with netted shielding layer, netted shielding layer outside is equipped with polytetrafluoroethylene layer, its characterized in that: the novel cable comprises a cable core, and is characterized in that a PFA layer is arranged on the outer side of the cable core, a polypropylene resin insulating layer is arranged on the outer side of the PFA layer, each group of cable core, the PFA layer and the polypropylene resin insulating layer are of an integrated structure, a nylon rope is arranged between the integrated structures, and a ceramic powder layer with the thickness of 1-3mm is coated on the inner side of the polytetrafluoroethylene layer.

2. A 4-core communication cable according to claim 1, wherein: the copper-plastic composite tape is provided with 2-3 layers of wrapping layers.

3. A 4-core communication cable according to claim 1, wherein: the thickness of the ceramic powder layer is 2.2mm.

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