CN216053959U

CN216053959U - Aluminum alloy core overhead insulated cable

Info

Publication number: CN216053959U
Application number: CN202121318063.3U
Authority: CN
Inventors: 王正阳; 游学明; 武志斌
Original assignee: Sichuan Mingda Wire And Cable Technology Co ltd
Current assignee: Sichuan Mingda Wire And Cable Technology Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-03-15
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses an aluminum alloy core overhead insulated cable which comprises a plurality of cable cores, wherein inner jackets are coated outside the cable cores, all the cable cores are coated with a belting layer, outer jackets are coated outside the belting layer, and filling materials are arranged between the belting layer and the cable cores; the material of inner sheath is crosslinked polyethylene, the inner wall of inner sheath is the circular with the cable core laminating, the outer wall of inner sheath is regular hexagon, and the inner sheath of all cable cores is cellular inseparable laminating. According to the aluminum alloy core aerial insulated cable, the outer surface of the inner sheath of the cable core is designed to be hexagonal, so that the cable core forms a honeycomb structure, the inner sheaths of adjacent cable cores are in surface contact, the stress can be uniformly dispersed, and the cable has the advantages of longer service life, better extrusion resistance, better abrasion resistance and the like by combining the filler, the belting layer and the outer sheath.

Description

Aluminum alloy core overhead insulated cable

Technical Field

The utility model relates to the technical field of cables, in particular to an aluminum alloy core overhead insulated cable.

Background

A plurality of circular cable cores are extruded at the center of a traditional aerial cable, a sheath is coated on the periphery of the traditional aerial cable, and no matter how the sheath is arranged, when the traditional aerial cable is applied to the cable cores positioned on the inner side from the outside, the cable cores are in line contact, and the mutual acting force of the cable cores is large, so that the cable cores are easy to deform, extrude and damage and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the aluminum alloy core overhead insulated cable, the outer surface of the inner sheath of the cable core is designed into a hexagon, so that the cable core forms a honeycomb structure, the inner sheaths of adjacent cable cores are in surface contact, the stress can be uniformly dispersed, and the cable has longer service life, better extrusion resistance, better abrasion resistance and other effects by combining the filler, the belting layer and the outer sheath.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an aluminum alloy core overhead insulated cable which comprises a plurality of cable cores, wherein inner jackets are coated outside the cable cores, all the cable cores are coated with a belting layer, outer jackets are coated outside the belting layer, and filling materials are arranged between the belting layer and the cable cores;

the material of inner sheath is crosslinked polyethylene, the inner wall of inner sheath is the circular with the cable core laminating, the outer wall of inner sheath is regular hexagon, and the inner sheath of all cable cores is cellular inseparable laminating.

According to the aluminum alloy core aerial insulated cable, the outer surface of the inner sheath of the cable core is designed to be hexagonal, so that the cable core forms a honeycomb structure, the inner sheaths of adjacent cable cores are in surface contact, the stress can be uniformly dispersed, and the cable has the advantages of longer service life, better extrusion resistance, better abrasion resistance and the like by combining the filler, the belting layer and the outer sheath.

In a further technical scheme, the outer sheath sequentially comprises a shielding layer, an armor layer and a wear-resistant layer from inside to outside.

The shielding layer, the armor layer and the wear-resistant layer can effectively improve the overall protection performance of the cable.

In a further technical scheme, the armor layer sequentially comprises a steel belt armored polyethylene sheath layer and a tinned copper wire armored sheath layer from inside to outside.

The double-layer armor of the steel-tape armored polyethylene sheath layer and the tinned copper wire armored sheath layer is adopted, so that the protection effect on the cable core is better.

In a further technical scheme, the filling material is a polypropylene reticular filling rope.

The polypropylene has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property and good wear resistance, the service life and the safety of the cable core can be effectively improved by adopting polypropylene for filling, and the polypropylene reticular filling rope is soft, light in specific gravity and good in elasticity and can ensure the roundness of the cable structure.

Has the advantages that:

1. according to the aluminum alloy core aerial insulated cable, the outer surface of the inner sheath of the cable core is designed to be hexagonal, so that the cable core forms a honeycomb structure, the inner sheaths of adjacent cable cores are in surface contact, the stress can be uniformly dispersed, and the cable has the advantages of longer service life, better extrusion resistance, better abrasion resistance and the like by combining the filler, the belting layer and the outer sheath.

2. The shielding layer, the armor layer and the wear-resistant layer can effectively improve the overall protection performance of the cable.

3. The double-layer armor of the steel-tape armored polyethylene sheath layer and the tinned copper wire armored sheath layer is adopted, so that the protection effect on the cable core is better.

4. The polypropylene has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property and good wear resistance, the service life and the safety of the cable core can be effectively improved by adopting polypropylene for filling, and the polypropylene reticular filling rope is soft, light in specific gravity and good in elasticity and can ensure the roundness of the cable structure.

Drawings

Fig. 1 is a schematic view of the internal structure of an aluminum alloy core overhead insulated cable according to an embodiment of the present invention.

Reference numerals:

10. a cable core; 11. an inner sheath; 20. a filler; 30. a belting layer; 40. an outer sheath.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

example 1:

as shown in fig. 1, the aluminum alloy core overhead insulated cable comprises a plurality of cable cores 10, wherein inner sheaths 11 are respectively coated outside the cable cores 10, all the cable cores 10 are jointly coated with a belting layer 30, the belting layer 30 is coated with an outer sheath 40, and filling materials 20 are arranged between the belting layer 30 and the cable cores 10; the filling material 20 is arranged to enable the external pressure to be more uniformly applied to the agglomerated cable core 10. The band layer 30 is the non-woven fabrics around the package, and non-woven fabrics intensity is high, thickness is suitable, tensile good, high temperature resistant, can improve production efficiency around the package process.

The inner sheath 11 is made of cross-linked polyethylene, the inner wall of the inner sheath 11 is circular and is attached to the cable cores 10, the outer wall of the inner sheath 11 is in a regular hexagon, and the inner sheaths 11 of all the cable cores 10 are in a honeycomb shape and are closely attached to each other.

According to the aluminum alloy core aerial insulated cable, the outer surface of the inner sheath 11 of the cable core 10 is designed to be hexagonal, so that the cable core 10 forms a honeycomb structure, the inner sheaths 11 of adjacent cable cores 10 are in surface contact, the stress can be uniformly dispersed, and the filler 20, the belting layer 30 and the outer sheath 40 are combined, so that the cable is longer in service life, and better in effects such as extrusion resistance, abrasion resistance and the like.

In another embodiment, the outer sheath 40 includes a shielding layer, an armor layer, and a wear layer in order from the inside to the outside.

In another embodiment, the armor layer comprises a steel tape armored polyethylene sheath layer and a tinned copper wire armored sheath layer from inside to outside.

The double-layer armor of the steel-tape armored polyethylene sheath layer and the tinned copper wire armored sheath layer is adopted, so that the protection effect on the cable core 10 is better.

In another embodiment, the fill material 20 is a polypropylene mesh fill rope.

The polypropylene has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property and good wear resistance, the service life and the safety of the cable core 10 can be effectively improved by adopting polypropylene for filling, and the polypropylene reticular filling rope is soft, light in specific gravity and good in elasticity and can ensure the roundness of the cable structure.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The aluminum alloy core overhead insulated cable is characterized by comprising a plurality of cable cores, wherein inner jackets are respectively coated outside the cable cores, all the cable cores are coated with a belting layer, outer jackets are coated outside the belting layer, and fillers are arranged between the belting layer and the cable cores;

2. The aluminum alloy core overhead insulated cable of claim 1, wherein the outer sheath comprises a shielding layer, an armor layer and a wear layer in sequence from inside to outside.

3. The aluminum alloy core overhead insulated cable of claim 2, wherein the armor layer comprises a steel tape armored polyethylene sheath layer and a tinned copper wire armored sheath layer in sequence from inside to outside.

4. The aluminum alloy core overhead insulated cable of claim 1, wherein the filler is a polypropylene mesh filler rope.