CN215265683U

CN215265683U - Corona-resistant self-adhesive film sintered copper flat wire

Info

Publication number: CN215265683U
Application number: CN202121433996.7U
Authority: CN
Inventors: 马艳珍
Original assignee: Zhejiang Tianma Wires & Cables Co ltd
Current assignee: Zhejiang Tianma Wires & Cables Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-21
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a corona-resistant autohension film sintering copper flat wire belongs to cable wire field. A corona-resistant self-adhesive film sintered copper flat wire comprises a copper flat wire, a strip, a polyimide film, a paraffin-free glass fiber and self-adhesive paint; the polyimide film is spirally wound on the copper flat wire by adopting 45 percent of overlapping; the strip object is positioned between the polyimide film and the copper flat wire, the strip object is fixedly connected with the copper flat wire, and the length of the strip object is the same as that of the copper flat wire; the paraffin-free glass fiber comprises a first layer of paraffin-free glass fiber and a second layer of paraffin-free glass fiber, wherein the first layer of paraffin-free glass fiber is spirally wound outside the polyimide film, the second layer of paraffin-free glass fiber is spirally wound outside the first layer of paraffin-free glass fiber, and the winding directions of the first layer of paraffin-free glass fiber and the second layer of paraffin-free glass fiber are opposite; the copper flat wire stripping device can rapidly strip the insulating layer outside the copper flat wire and can improve the tensile strength of the copper flat wire.

Description

Corona-resistant self-adhesive film sintered copper flat wire

Technical Field

The utility model relates to a cable wire field, more specifically say, relate to a corona-resistant autohension film sintering copper flat wire.

Background

The flat wire, also called flat wire, flat angle wire or ultra-narrow strip, refers to the metal wire with the opposite shape with the approximate round angle rectangle cross section, compared with the common round wire, the shape of the flat wire has unique advantages in the aspects of heat dissipation, welding contact area, fatigue resistance, hardness control and the like.

The insulating layer is wrapped up to the flat line outside, and when using, when the insulating layer of the outside of flat line was peeled off, it was very difficult quick peel off the insulating layer outside the flat line, and current flat line tensile strength is not strong in addition, when the flat line was very thin, was broken very easily.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a corona-resistant autohension film sintering copper flat wire can peel off the outer insulating layer of copper flat wire fast and can improve the tensile strength of copper flat wire.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A corona-resistant self-adhesive film sintered copper flat wire comprises a copper flat wire, a strip, a polyimide film, a paraffin-free glass fiber and self-adhesive paint; the polyimide film is spirally wound on the copper flat wire by adopting 45 percent of overlapping; the strip object is positioned between the polyimide film and the copper flat wire, the strip object is fixedly connected with the copper flat wire, and the length of the strip object is the same as that of the copper flat wire; the paraffin-free glass fiber comprises a first layer of paraffin-free glass fiber and a second layer of paraffin-free glass fiber, wherein the first layer of paraffin-free glass fiber is spirally wound outside the polyimide film, the second layer of paraffin-free glass fiber is spirally wound outside the first layer of paraffin-free glass fiber, and the winding directions of the first layer of paraffin-free glass fiber and the second layer of paraffin-free glass fiber are opposite; carbon fibers are fixedly arranged between the polyimide film and the paraffin-free glass fiber and are arranged along the length direction of the copper flat wire, and the length of the carbon fibers is the same as that of the copper flat wire; insulating paint is coated between the second layer of paraffin-free glass fiber and the first layer of paraffin-free glass fiber and outside the second layer of paraffin-free glass fiber; the self-adhesive paint is coated outside the paraffin-free glass fiber.

Preferably, the longitudinal section of the strip is rectangular, and two sides of the strip, which are far away from the copper flat wire, are both provided with round corners.

Preferably, the strip is made of the same material as the copper flat wire.

Preferably, the strip and the copper flat wire are in an integrally formed structure.

Preferably, the material of the strip is a refractory material.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) through the arrangement of the strip-shaped objects, the strip-shaped objects are fixedly connected with the copper flat wire, and the insulating layer outside the copper flat wire can be quickly stripped at the fixed connection position of the strip-shaped objects and the copper flat wire.

(2) Through the setting of carbon fiber, the carbon fiber setting is between polyimide film and no paraffin glass silk, and sets up along copper flat wire length direction, and it can improve copper flat wire's tensile strength, makes copper flat wire be difficult for being broken.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

The reference numbers in the figures illustrate:

1 copper flat wire, 2 strips, 3 polyimide films, 4 paraffin-free glass fibers and 5 self-adhesive paint.

Detailed Description

Please refer to fig. 1, which illustrates a corona-resistant self-adhesive film sintered copper flat wire, including a copper flat wire 1, a strip 2, a polyimide film 3, a paraffin-free glass fiber 4, and a self-adhesive paint 5; the polyimide film 3 is spirally wound on the copper flat wire 1 in a 45% overlapping mode, and the polyimide film 3 is used for improving the corona resistance of the copper flat wire 1; the strip 2 is positioned between the polyimide film 3 and the flat copper wire 1, the strip 2 is fixedly connected with the flat copper wire 1, the length of the strip 2 is the same as that of the flat copper wire 1, the strip 2 is convenient for a user to strip an insulating layer outside the flat copper wire 1, and the insulating layer outside the flat copper wire 1 can be stripped and leaked out of the flat copper wire 1 by sliding a knife or a sharp object along the fixed connection position of the strip 2 and the flat copper wire 1; the paraffin-free glass fiber 4 comprises a first layer of paraffin-free glass fiber and a second layer of paraffin-free glass fiber, and the paraffin-free glass fiber 4 is used for improving the mechanical strength of the copper flat wire 1; the first layer of paraffin-free glass fiber is spirally wound outside the polyimide film 3, the second layer of paraffin-free glass fiber is spirally wound outside the first layer of paraffin-free glass fiber, and the winding directions of the first layer of paraffin-free glass fiber and the second layer of paraffin-free glass fiber are opposite; carbon fibers are fixedly arranged between the polyimide film 3 and the paraffin-free glass fiber 4 and are arranged along the length direction of the copper flat wire 1, the length of the carbon fibers is the same as that of the copper flat wire 1, and the carbon fibers are used for improving the tensile strength of the copper flat wire 1 and enabling the copper flat wire 1 to be difficult to break; insulating paint is coated between the second layer of paraffin-free glass fiber and the first layer of paraffin-free glass fiber and outside the second layer of paraffin-free glass fiber, and the insulating paint is used for bonding the first layer of paraffin-free glass fiber and the first layer of paraffin-free glass fiber, so that when the copper flat wire 1 is stripped, the second layer of paraffin-free glass fiber and the first layer of paraffin-free glass fiber are prevented from being scattered; self-adhesion paint 5 coats outside no paraffin glass silk 4, and self-adhesion paint 5 plays insulating flat copper wire 1's effect on the one hand, and on the other hand conveniently connects and fixes two copper flat wires 1.

The longitudinal section of the strip 2 is rectangular, round corners are formed on two sides of the strip 2 far away from the flat copper wire 1, and the polyimide film 3 is not easy to puncture when the polyimide film 3 is spirally wound on the flat copper wire 1 due to the arrangement of the round corners.

The strip 2 is made of the same material as the copper flat wire 1, so that the strip 2 does not influence the connection of the copper flat wire 1, and the processing technology can be reduced.

The strip 2 and the copper flat wire 1 are of an integrated structure, so that the processing technology can be reduced, and the processing cost is saved.

The strip 2 is made of a fireproof material, and when the copper flat wire 1 is subjected to electric spark, the strip 2 is not flammable.

Claims

1. A corona-resistant self-adhesive film sintered copper flat wire is characterized in that: comprises a copper flat wire (1), a strip-shaped object (2), a polyimide film (3), a paraffin-free glass fiber (4) and self-adhesive paint (5);

the polyimide film (3) is spirally wound on the copper flat wire (1) by adopting 45 percent of overlapping;

the strip (2) is positioned between the polyimide film (3) and the copper flat wire (1), the strip (2) is fixedly connected with the copper flat wire (1), and the length of the strip (2) is the same as that of the copper flat wire (1);

the paraffin-free glass fiber (4) comprises a first layer of paraffin-free glass fiber and a second layer of paraffin-free glass fiber, the first layer of paraffin-free glass fiber is spirally wound outside the polyimide film (3), the second layer of paraffin-free glass fiber is spirally wound outside the first layer of paraffin-free glass fiber, and the winding directions of the first layer of paraffin-free glass fiber and the second layer of paraffin-free glass fiber are opposite;

carbon fibers are fixedly arranged between the polyimide film (3) and the paraffin-free glass fiber (4), and are arranged along the length direction of the copper flat wire (1), and the length of the carbon fibers is the same as that of the copper flat wire (1);

insulating paint is coated between the second layer of paraffin-free glass fiber and the first layer of paraffin-free glass fiber and outside the second layer of paraffin-free glass fiber;

the self-adhesive paint (5) is coated outside the paraffin-free glass fiber (4).

2. The corona-resistant self-adhesive thin film sintered copper flat wire of claim 1, wherein: the longitudinal section of the strip (2) is rectangular, and both sides of the strip (2) far away from the flat copper wire (1) are provided with round corners.

3. The corona-resistant self-adhesive thin film sintered copper flat wire of claim 1, wherein: the strip-shaped object (2) is made of the same material as the copper flat wire (1).

4. The corona-resistant self-adhesive thin film sintered copper flat wire of claim 1, wherein: the strip (2) and the flat copper wire (1) are of an integrated structure.

5. The corona-resistant self-adhesive thin film sintered copper flat wire of claim 1, wherein: the strip-shaped object (2) is made of refractory material.