CN214476509U

CN214476509U - Electric wire and cable

Info

Publication number: CN214476509U
Application number: CN202120516375.9U
Authority: CN
Inventors: 周露; 马宁; 赵朔; 贾明磊; 李政; 袁航; 侯威; 杜娟
Original assignee: Fangcheng Power Supply Co Of State Grid Henan Electric Power Co
Current assignee: Fangcheng Power Supply Co Of State Grid Henan Electric Power Co
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-10-22
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a wire and cable belongs to cable technical field. Wire and cable, including three conductors, obturator, inner liner, metallic shield layer and outer tegument, the obturator will three conductors keep apart respectively, the inner liner cladding is three the conductor, the obturator with the inner wall of inner liner is connected, the outside of inner liner sets up metallic shield layer, the metallic shield layer outside sets up outer tegument. The utility model provides high wire and cable's isolation shielding effect.

Description

Electric wire and cable

Technical Field

The utility model relates to a cable technical field, concretely relates to wire and cable.

Background

With the continuous and rapid growth of economy in China, the wire and cable industry is greatly developed. There are five major types of products for electric wires and cables: power cables, bare wires, communication cables and optical cables, winding wires, and wire cables for electrical equipment. They are essential basic equipments for transmitting electric energy, transmitting information and manufacturing various electric appliances and meters, and are widely used in the daily life of the people.

The No. CN206075884U discloses a wire and cable, which comprises three conductors, wherein the three conductors comprise polyethylene insulation layers, the three conductors are covered by the polyethylene insulation layers, a metal shielding layer is arranged on the outer side of each polyethylene insulation layer, a polyvinyl chloride insulation layer is arranged on the outer side of each metal shielding layer, a fluorescent layer is arranged on the outer side of each polyvinyl chloride insulation layer, a transparent colloid anti-slip layer is arranged on the outer side of each fluorescent layer, and a plurality of protrusions are arranged on each transparent colloid anti-slip layer; the filling body is arranged in the polyethylene insulating layer and used for respectively isolating the three conductors, the filling body is connected with the inner wall of the polyethylene insulating layer, the conductive paint is arranged in the filling body, and the conductive paint is positioned among the three conductors. Because the utility model discloses well three conductors are only by the cladding of polyethylene insulating layer, do not take further electromagnetic shield measure, so in the use, produce electromagnetic interference easily between adjacent conductor.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a wire cable, which can effectively improve the isolation and shielding effect.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides an electric wire and cable, includes three conductors, obturator, inner liner, metallic shield and outer tegillum, the obturator will three conductors keep apart respectively, the inner liner cladding three conductors, the obturator with the inner wall of inner liner is connected, the outside of inner liner sets up metallic shield, the metallic shield outside sets up outer tegillum.

The conductor includes a copper line at least, the copper line is by conductor shielding layer cladding, the conductor shielding layer outside sets up the XLPE insulating layer, the XLPE insulating layer outside sets up plastics reinforcing protective layer.

The metal shielding layer comprises two layers of metal armors, and an anti-abrasion layer is arranged between the two layers of metal armors.

The obturator is confined cavity structures, cavity structures's lower surface comprises bilateral symmetry's interior arcwall face, cavity structures's upper surface comprises outer arcwall face, the centre of outer arcwall face sets up the recess along its extending direction, interior arcwall face respectively with be connected through the holding surface between outer arcwall face and the recess, interior arcwall face with the outer wall laminating of conductor, outer arcwall face with the inner wall laminating of inner liner.

The inner arc-shaped surface, the outer arc-shaped surface, the groove and the supporting surface are of an integrated structure.

A semi-conductive waterproof layer and an alloy lead sleeve are arranged between the XLPE insulating layer and the plastic reinforcing protective layer, the XLPE insulating layer is coated by the semi-conductive waterproof layer, and the alloy lead sleeve is arranged on the outer side of the semi-conductive waterproof layer.

The utility model has the advantages that: the utility model discloses set up the obturator inside the inside liner, the obturator keeps apart three conductors respectively, and the obturator is connected with the inner wall of inside liner, is provided with conductive paint inside the obturator, and conductive paint is located three conductors each other to form the electromagnetic shield, can not receive electromagnetic interference between the adjacent conductor; a metal shielding layer is arranged between the inner lining layer and the outer layer, the metal shielding layer comprises two layers of metal armors, and an anti-abrasion layer is arranged between the two layers of metal armors to isolate the three conductors, so that the durability of the wire and the cable is improved; the inner arc-shaped surface, the outer arc-shaped surface, the groove and the supporting surface are integrally formed to form a filling body, the inner arc-shaped surface is attached to the outer wall of the conductor, the outer arc-shaped surface is arranged on the circular cross section formed by the lining layer, the filling effect is good, and the roundness, the supporting force and the strength are good; the utility model relates to a rationally, simple structure is fit for extensively promoting.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the cross section of the packing body of the present invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following description will be made with reference to fig. 1 to 3 of the embodiments of the present invention to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

The reference numerals in fig. 1 denote:

1. a conductor; 2. a conductor shield layer; 3. an XLPE insulating layer; 4. a semiconductive water barrier layer; 5. an alloy lead sleeve; 6. a plastic reinforced protective layer; 7. an inner liner layer; 8. metal armor; 9. an anti-wear layer; 10. a tegument layer; 11. a filler; 12. an inner arc-shaped surface; 13. an outer arcuate surface; 14. a support surface; 15. and (4) a groove.

The first embodiment is as follows:

the wire and cable shown in fig. 1 has three conductors 1, each conductor 1 at least comprises a copper wire, a conductor shielding layer 2 is coated on the conductor 1, an XLPE insulating layer 3 is arranged on the outer side of the conductor shielding layer 2, and a plastic reinforcing protective layer 6 is arranged on the outer side of the XLPE insulating layer 3. The conductor shielding layer 2 is made of a semi-conductive material which is formed by taking polyethylene as a base material and adding carbon black, and the conductor shielding layer 2 plays a role in uniformly distributing conductive wire cores and an insulating electric field; the XLPE insulating layer 3 is made of cross-linked polyethylene, the XLPE insulating layer 3 plays a role in balancing an electric field, reducing loss and preventing partial discharge, and the thickness of the XLPE insulating layer is 1 mm; the plastic reinforced protective layer 6 is made of epoxy resin material.

The three conductors 1 are respectively isolated by filling bodies 11, the filling bodies 11 are of a closed cavity structure, as shown in fig. 3, the lower surface of the cavity structure is composed of inner arc-shaped surfaces 12 which are bilaterally symmetrical, the upper surface of the cavity structure is composed of outer arc-shaped surfaces 13, grooves 15 are formed in the middles of the outer arc-shaped surfaces 13 along the extending direction of the outer arc-shaped surfaces 13, the inner arc-shaped surfaces 12 are respectively connected with the outer arc-shaped surfaces 13 and the grooves 15 through supporting surfaces 14, the inner arc-shaped surfaces 12 are attached to the outer walls of the conductors 1, and the outer arc-shaped surfaces 13 are attached to the inner walls of the inner liners 7. The inner arc-shaped surface 12, the outer arc-shaped surface 13, the groove 15 and the supporting surface 14 are of an integrated structure; and the joints among the inner arc-shaped surface 12, the outer arc-shaped surface 13 and the groove 15 are all in fillet transition. The lining layer 7 is made of engineering plastic polyurethane, and the main function of the lining layer is to prevent the plastic reinforced protective layer 6 on the outer side of the conductor 1 from being abraded.

The outside of inner liner 7 sets up the metallic shield layer, the metallic shield layer includes two-layer metal armor 8, set up abrasionproof layer 9 between two-layer metal armor 8, two-layer metal armor 8 comprises the annealed copper wire of two-layer overlapping around the package, and its main objective is in order to completely cut off wire shielding electric field. An outer tegument 10 is arranged on the outer side of the metal shielding layer, and the main material of the outer tegument 10 is cable hemp, so that the cable is protected.

Example two:

as shown in fig. 2, this embodiment is different from the first embodiment in that a semi-conductive waterproof layer 4 and an alloy lead sleeve 5 are arranged between the XLPE insulating layer 3 and the plastic reinforcing protective layer 6, the XLPE insulating layer 3 is coated with the semi-conductive waterproof layer 4, and the alloy lead sleeve 5 is arranged outside the semi-conductive waterproof layer 4; the semiconductive water-resistant layer 4 is made of polyvinyl chloride, and the alloy lead sleeve 5 is made of a lead alloy film.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a wire and cable, includes three conductors, obturator, inner liner, metallic shield layer and tegument, its characterized in that: the filler separates the three conductors respectively, the lining layer coats the three conductors, the filler is connected with the inner wall of the lining layer, the metal shielding layer is arranged on the outer side of the lining layer, and the outer tegument layer is arranged on the outer side of the metal shielding layer; the conductor at least comprises a copper wire, the copper wire is coated by a conductor shielding layer, an XLPE insulating layer is arranged on the outer side of the conductor shielding layer, and a plastic reinforcing protective layer is arranged on the outer side of the XLPE insulating layer; the obturator is confined cavity structures, cavity structures's lower surface comprises bilateral symmetry's interior arcwall face, cavity structures's upper surface comprises outer arcwall face, the centre of outer arcwall face sets up the recess along its extending direction, interior arcwall face respectively with connect through the holding surface between outer arcwall face and the recess, interior arcwall face with the outer wall laminating of conductor, outer arcwall face with the inner wall laminating of inner liner, interior arcwall face, outer arcwall face, recess and holding surface structure as an organic whole.

2. The wire cable of claim 1, wherein: the metal shielding layer comprises two layers of metal armors, and an anti-abrasion layer is arranged between the two layers of metal armors.

3. The wire cable of claim 1, wherein: a semi-conductive waterproof layer and an alloy lead sleeve are arranged between the XLPE insulating layer and the plastic reinforcing protective layer, the XLPE insulating layer is coated by the semi-conductive waterproof layer, and the alloy lead sleeve is arranged on the outer side of the semi-conductive waterproof layer.