CN210777877U

CN210777877U - Electric wire

Info

Publication number: CN210777877U
Application number: CN201922086162.2U
Authority: CN
Inventors: 朱宝成; 李伟; 徐殿生; 徐英达; 朱宝华; 许占伟; 李明
Original assignee: Changchun Baocheng Weiye Auto Parts Co ltd
Current assignee: Changchun Baocheng Weiye Auto Parts Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-06-16
Anticipated expiration: 2029-11-28

Abstract

The utility model belongs to the technical field of the electric wire, concretely relates to electric wire. The technical problems that in the prior art, a two-core insulated wire is poor in roundness, unstable in structure, easy to deform, high in cost and the like, and materials are wasted are solved. The utility model discloses an electric wire, which consists of a protective layer, an insulation wrapping layer, an insulation isolation layer and two wire cores; the two wire cores are symmetrically arranged on two sides of the insulating isolation layer to form a cylinder; the insulation isolation layer is composed of an isolation layer and an insulation layer, the isolation layer is flat, the size of the isolation layer is matched with the size of the plane of the wire core, and the insulation layer wraps the outer surface of the isolation layer; the insulating wrapping layer wraps the outer surface of the cylinder; the protective layer is wrapped on the outer surface of the insulating wrapping layer. The wire is good in roundness, stable in size and not easy to deform, and the diameter of the wire is reduced.

Description

Electric wire

Technical Field

The utility model belongs to the technical field of the electric wire, concretely relates to electric wire.

Background

The electric wire refers to a wire for transmitting electric energy. And can be classified into bare wires, electromagnetic wires, and insulated wires. The bare wires have no insulating layer and comprise copper, aluminum flat wires, overhead stranded wires and various profiles (such as molded lines, buses, copper bars, aluminum bars and the like). It is mainly used for outdoor overhead and indoor bus bars and switch boxes. Magnet wires are insulated wires that, when energized, produce a magnetic field or induce a current in a magnetic field. It is mainly used for motor and transformer coils and other relevant electromagnetic equipment. Insulated wires are generally composed of a conductive wire core, an insulating layer, and a protective layer. The wire core can be divided into a hard type, a soft type, a movable type and an ultra-soft type according to the use requirement. The wire cores are four types, namely a single core, a two-core, a three-core and a four-core. The insulating layer is generally made of rubber, plastic or the like. It is mainly used for various instruments and meters with AC voltage below 500V and DC voltage below 1000V, telecommunication equipment, power lines and lighting lines.

In the prior art, the cross section of an insulated wire is generally circular, when the wire core adopts two cores, a plurality of larger gaps are arranged between the wire core and between the wire core and an insulating layer, so that the roundness of the wire is difficult to ensure on one hand, the structure is unstable and easy to deform on the other hand, and on the other hand, in order to improve the roundness, the local uneven stress is reduced as much as possible, the thicknesses of the insulating layer and the protective layer are inevitably increased, the material waste is caused, the cost is improved, and the flexibility is reduced; in addition, the wire core and the wire core need to be respectively wrapped by insulating layers, and the insulating layers of the overlapped parts can also cause material waste and increase the cost.

SUMMERY OF THE UTILITY MODEL

In view of this, for solving among the prior art two core insulated wire circularity poor, the structure unstable, easy deformation, extravagant material, technical problem such as with high costs, the utility model provides an electric wire.

The utility model provides a technical scheme as follows that above-mentioned technical problem took.

The utility model discloses an electric wire, which consists of a protective layer, an insulation wrapping layer, an insulation isolation layer and two wire cores;

the wire cores are semi-cylindrical and made of stranded and compressed copper wires, and the two wire cores are symmetrically arranged on two sides of the insulating isolation layer to form a cylinder;

the insulation isolation layer is composed of an isolation layer and an insulation layer, the isolation layer is flat and matched with the planar size of the wire core, the insulation layer wraps the outer surface of the isolation layer, the isolation layer is made of a thermoplastic elastomer with the heat-resistant temperature of more than 120 ℃, and the thickness of the isolation layer is 0.2-0.4 mm; the insulating layer is made of insulating materials, and the thickness of the insulating layer is 0.2-0.5 mm;

the insulating wrapping layer wraps the outer surface of the cylinder, the insulating wrapping layer is made of insulating materials, and the thickness of the insulating wrapping layer is 0.6-1.25 mm;

the protective layer wraps the outer surface of the insulating wrapping layer, and the protective layer is made of thermoplastic elastomer with heat resistance temperature of more than 120 ℃.

Furthermore, the copper wire is an oxygen-free copper wire or a tinned copper wire.

Furthermore, the diameter of the copper wire is 0.2-0.3 mm.

Further, the insulating material is polyvinyl chloride resin, polyethylene resin or polypropylene resin.

Further, the thickness of the protective layer is 0.5-1 mm.

Furthermore, a flame-retardant layer is arranged between the insulating wrapping layer and the protective layer, the flame-retardant layer is made of polyamide fiber mesh cloth, and the thickness of the flame-retardant layer is 0.05-0.1 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the wire of the utility model adopts the combination of two semi-cylindrical pressed wire cores as the round wire core, the roundness of the wire is good, the diameter of the wire is reduced, and the wire has stable size and is not easy to deform; the two semi-cylindrical wire cores are isolated by an insulating isolation layer, and the isolation layer has good elasticity and does not influence the overall flexibility of the electric wire; the insulating layer and the insulating wrapping layer are matched to provide a new setting mode of the insulating layer, so that the relative positions of the two wire cores are more stable, materials are saved, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an electric wire according to the present invention;

fig. 2 is a schematic structural view of an insulating layer of an electric wire according to the present invention;

fig. 3 is a schematic structural view of the electric wire according to the present invention (including the flame retardant layer);

in the figure, 1, an insulation wrapping layer, 2, an insulation isolation layer, 2-1, an insulation layer, 2-2, an isolation layer, 3, a wire core, 4, a protection layer, 5 and a flame retardant layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the electric wire of the present invention comprises a protective layer 4, an insulation coating layer 1, an insulation isolation layer 2 and two wire cores 3.

The wire core 3 is semi-cylindrical, and is made of stranded and compacted multi-strand copper wires, namely, the stranded and compacted multi-strand copper wires which are stranded into a cylinder are compacted into the semi-cylindrical shape through stranding and compacting. Two sinle silk 3 symmetries set up in the both sides of insulating isolation layer 2, and the plane of two sinle silks 3 contacts with the upper and lower surface contact of insulating isolation layer 2 respectively, forms a cylinder. The copper wire is a common material in the field, can be an oxygen-free copper wire or a tin-plated copper wire, and preferably has a diameter of 0.2-0.3 mm.

As shown in fig. 2, the insulating isolation layer 2 is composed of an isolation layer 2-2 and an insulating layer 2-1, the isolation layer 2-2 is flat and has a size matched with the size of the plane of the wire core 3, the insulating layer 2-1 is wrapped on the outer surface of the isolation layer 2-2, the isolation layer 2-2 is made of a thermoplastic elastomer with heat resistance temperature above 120 ℃, and the thickness of the isolation layer 2-2 is 0.2-0.4 mm; the insulating layer 2-1 is made of insulating materials, and the thickness of the insulating layer 2-1 is 0.2-0.5 mm. The insulating material is typically polyvinyl chloride resin, polyethylene resin, or polypropylene resin.

The insulating wrapping layer 1 wraps the outer surface of the cylinder, the material of the insulating wrapping layer 1 is insulating material, and the thickness of the insulating wrapping layer 1 is 0.6-1.25 mm. The insulating material is typically polyvinyl chloride resin, polyethylene resin, or polypropylene resin.

The protective layer 4 is wrapped on the outer surface of the insulating wrapping layer 1, and the material of the protective layer 4 is a thermoplastic elastomer with the heat-resistant temperature of more than 120 ℃. The thickness of the protective layer 4 is preferably 0.5 to 1 mm.

As shown in fig. 3, a flame retardant layer 5 may be disposed between the insulation wrapping layer 1 and the protective layer 4, and the flame retardant layer 5 is made of polyamide fiber mesh cloth with a thickness of 0.05-0.1 mm.

In the utility model, the thermoplastic elastomer with the heat-resisting temperature of more than 120 ℃ is a resin material in the field, and can be obtained by commercial purchase or self-preparation.

Claims

1. The electric wire is characterized by consisting of a protective layer (4), an insulation wrapping layer (1), an insulation isolation layer (2) and two wire cores (3);

the wire cores (3) are semi-cylindrical and made of stranded and compacted copper wires, and the two wire cores (3) are symmetrically arranged on two sides of the insulating isolation layer (2) to form a cylinder;

the insulation isolation layer (2) is composed of an isolation layer (2-2) and an insulation layer (2-1), the isolation layer (2-2) is flat, the size of the isolation layer is matched with the size of the plane of the wire core (3), the insulation layer (2-1) wraps the outer surface of the isolation layer (2-2), the isolation layer (2-2) is made of a thermoplastic elastomer with the heat resistance temperature of more than 120 ℃, and the thickness of the isolation layer (2-2) is 0.2-0.4 mm; the insulating layer (2-1) is made of insulating materials, and the thickness of the insulating layer (2-1) is 0.2-0.5 mm;

the insulating wrapping layer (1) wraps the outer surface of the cylinder, the insulating wrapping layer (1) is made of insulating materials, and the thickness of the insulating wrapping layer (1) is 0.6-1.25 mm;

the protective layer (4) wraps the outer surface of the insulating wrapping layer (1), and the protective layer (4) is made of a thermoplastic elastomer with the heat-resistant temperature of more than 120 ℃.

2. The electrical wire according to claim 1, wherein said copper wire is an oxygen-free copper wire or a tin-plated copper wire.

3. The electrical wire according to claim 1, wherein said copper wire has a diameter of 0.2-0.3 mm.

4. The electric wire according to claim 1, wherein the insulating material is a polyvinyl chloride resin, a polyethylene resin, or a polypropylene resin.

5. The wire according to claim 1, characterized in that the thickness of the protective layer (4) is 0.5-1 mm.

6. The electric wire according to claim 1, wherein a flame retardant layer (5) is arranged between the insulation covering layer (1) and the protective layer (4), and the flame retardant layer (5) is made of polyamide fiber mesh cloth with a thickness of 0.05-0.1 mm.