CN214476467U

CN214476467U - High-heat-conductivity corona-resistant glass fiber copper-clad flat wire

Info

Publication number: CN214476467U
Application number: CN202022799828.1U
Authority: CN
Inventors: 秦凡
Original assignee: Jiangsu Rujie Ind Co ltd
Current assignee: Jiangsu Rujie Ind Co ltd
Priority date: 2020-11-28
Filing date: 2020-11-28
Publication date: 2021-10-22
Anticipated expiration: 2030-11-28

Abstract

The utility model discloses a high-heat-conduction corona-resistant glass fiber covered copper flat wire, including rectangular wire body, rectangular copper flat wire and wear-resistant rubber circle, the outside fixed mounting of rectangular copper flat wire has the polyimide thin layer, and the outside both sides fixed mounting of rectangular copper flat wire has the heat conduction sheetmetal, and the outside fixed mounting of polyimide thin layer has the glass fiber layer, and the outside fixed mounting on glass fiber layer has the mica tape layer, and the outside fixed mounting on mica tape layer has the insulating paint layer, and the outside fixed mounting on insulating paint layer has the self-adhesion paint layer. The intermittent high-frequency pulse current can be effectively prevented by arranging the polyimide film layer, so that the sintered copper flat wire has the characteristics of corona resistance of the polyimide film, excellent heat conducting performance and excellent electrical performance, and the glass fiber layer is arranged to effectively increase electrical and mechanical performance, thereby overcoming the defect of film abrasion caused by bending during winding and enhancing the bending degree and high pressure resistance of the copper flat wire.

Description

High-heat-conductivity corona-resistant glass fiber copper-clad flat wire

Technical Field

The utility model belongs to the technical field of the cable wire, concretely relates to corona-resistant glass fiber covered copper flat wire of high heat conduction.

Background

The copper flat wire is a novel data cable formed by pressing a high-tech automatic equipment production line, has the advantages of softness, random bending and folding, thin thickness, small volume, simple connection, convenient disassembly, easy solution to electromagnetic shielding and the like, and the copper flat wire for the stator winding of a general large or super-large dry-type transformer is required to have good adhesive force, and the surface of the copper flat wire can not be harmful heavy metal ions, so that excellent prerequisite conditions are provided for the impregnated insulating material of the stator.

At present, the conducting wire for the stator coil of the motor mostly follows the standard of GB/T7672-glass fiber wrapped wire assembly, wherein, the double glass fiber wrapped polyimide film wrapped copper flat wire is mainly used for manufacturing the stator winding coil of the high-voltage motor, the wire has the characteristics of high temperature resistance and high pressure resistance, the heat resistance level is F and H level, the withstand voltage standard is more than or equal to 2.5KV, most of the copper flat wires on the market at present have the characteristics of high temperature resistance, high pressure resistance, corona resistance, low resistivity and good electrifying performance, although the traditional copper flat wire can meet the basic requirements of industrial production in heat resistance, flame resistance, severe cold resistance, radiation resistance and chemical resistance, the traditional copper flat wire cannot have comprehensive composite performance, does not have good material performance and has the characteristics of high heat conduction and corona resistance and the problem of inconvenience in the coil winding connection in the using process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-heat-conduction corona-resistant glass fiber-covered copper flat wire, in order to solve and to propose a current copper flat wire in the above-mentioned background art in the use, because most copper flat wires or for high temperature resistant, high pressure resistant on the market at present, or for corona resistance, or for the resistivity is low, the circular telegram performance is good, though traditional copper flat wire is heat-resisting, fire-resistant, cold-resistant, resistant radiation, chemical resistance can satisfy the basic requirement of industrial production, but can not have comprehensively has the combined property, thereby lead to the copper flat wire at the coil inconvenient problem of wraparound in the use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-heat-conduction corona-resistant glass fiber-covered copper flat wire, includes rectangular wire body, rectangular copper flat wire and wear-resistant rubber circle, the outside fixed mounting of rectangular copper flat wire has the polyimide film layer, the outside both sides fixed mounting of rectangular copper flat wire has the heat conduction sheetmetal, the outside fixed mounting of polyimide film layer has the glass fiber layer, the outside fixed mounting on glass fiber layer has the mica tape layer, the outside fixed mounting on mica tape layer has the insulating varnish layer, the outside fixed mounting on insulating varnish layer has the self-adhesive paint layer, circular recess has been seted up to one side of self-adhesive paint layer, one side fixed mounting who keeps away from circular recess on the self-adhesive paint layer has circular lug, spacing recess has been seted up to the bottom of self-adhesive paint layer, the top fixed mounting of self-adhesive paint layer has spacing lug.

Preferably, the rectangular copper flat wire is fixedly provided with a copper wire core inside.

Preferably, two anti-slip pads are fixedly mounted at the top of the self-adhesive paint layer, and the limiting convex block is located between the two anti-slip pads.

Preferably, two reinforcing ribs are fixedly mounted at the bottom of the self-adhesive paint layer.

Preferably, the size specification of the limiting bump is matched with that of the limiting groove.

Preferably, the size specification of the circular bump is matched with that of the circular groove.

Preferably, the wear-resistant rubber ring is sleeved on the outer side of the rectangular wire body.

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

1. the corona-resistant polyimide film layer is formed by sintering a single surface of a corona-resistant polyimide film at high temperature, so that the sintered copper flat wire has the characteristics of corona-resistant performance and heat-conducting performance of the corona-resistant polyimide film and excellent electrical performance.

2. Through setting up wear-resisting rubber circle can alleviate the degree of wear of coil when the use of outside parcel messenger whole coil, also can carry out segmentation parcel or comprehensive parcel, through setting up the outside around the mica tape layer of package and insulating paint layer at the effect of further increase anti-corona, the reinforcing rib can be at the further promotion of intensity of wire rod itself.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic view of the splicing structure of the rectangular wire main body of the present invention;

FIG. 3 is a schematic view of the combined three-dimensional structure of the present invention;

fig. 4 is a schematic view of the combined plane structure of the present invention.

In the figure: 1. a rectangular wire body; 2. a circular bump; 3. a copper wire core; 4. a glass fiber layer; 5. a self-adhesive paint layer; 6. a non-slip mat; 7. a limiting bump; 8. an insulating paint layer; 9. a mica tape layer; 10. a heat conductive metal sheet; 11. a circular groove; 12. a polyimide film layer; 13. rectangular copper flat wires; 14. a limiting groove; 15. reinforcing ribs; 16. wear-resisting rubber circle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a high-heat-conduction corona-resistant glass fiber-covered copper flat wire, including rectangular wire body 1, rectangular copper flat wire 13 and wear-resistant rubber circle 16, the outside fixed mounting of rectangular copper flat wire 13 has polyimide film layer 12, the outside both sides fixed mounting of rectangular copper flat wire 13 has heat conduction sheetmetal 10, the outside fixed mounting of polyimide film layer 12 has glass fiber layer 4, the outside fixed mounting of glass fiber layer 4 has mica tape layer 9, the outside fixed mounting of mica tape layer 9 has insulating varnish layer 8, the outside fixed mounting of insulating varnish layer 8 has self-adhesive paint layer 5, circular recess 11 has been seted up to one side of self-adhesive paint layer 5, one side fixed mounting who keeps away from circular recess 11 of self-adhesive paint layer 5 has circular lug 2, spacing recess 14 has been seted up to the bottom of self-adhesive paint layer 5, the top fixed mounting of self-adhesive paint layer 5 has spacing lug 7.

In the embodiment, the intermittent high-frequency pulse current can be effectively prevented by arranging the polyimide film layer 12, the polyimide film layer 12 is formed by sintering a single side of a corona-resistant polyimide film at a high temperature, so that the sintered copper flat wire has the characteristics of excellent corona-resistant performance, heat-conducting performance and electric performance of the corona-resistant polyimide film, in addition, the glass fiber layer 4 is arranged, the electric and mechanical properties can be effectively increased, the insulating strength is improved, the defect of film abrasion caused by bending in winding is overcome, the flexibility and the pressure resistance of the copper flat wire are enhanced, the cost and the performance can be balanced, the abrasion degree of the whole coil can be reduced when the whole coil is used by arranging the abrasion-resistant rubber ring 16, the segmented wrapping or the comprehensive wrapping can be carried out, and the corona-resistant effect is further improved by arranging the mica tape layer 9 and the insulating paint layer 8 of the outer wrapping, the reinforcing ribs 15 may further increase the strength of the wire itself.

Specifically, the inside of the rectangular copper flat wire 13 is fixedly provided with a copper wire core 3.

In this embodiment, the rectangular copper flat wire 13 is made of copper, zinc, lead, boron, iron, beryllium, bismuth, and silver, and the copper wire core 3 is made of oxygen-free copper.

Specifically, two anti-slip pads 6 are fixedly mounted on the top of the self-adhesive paint layer 5, and the limiting convex block 7 is located between the two anti-slip pads 6.

In this embodiment, the anti-slip pad 6 is used for increasing friction force and preventing dislocation when the coil is wound.

Specifically, two reinforcing ribs 15 are fixedly mounted at the bottom of the self-adhesive paint layer 5.

In this embodiment, the reinforcing ribs 15 may increase the overall strength of the coil, while the reinforcing ribs 15 are preferably soft metal.

Specifically, the dimension of the limit bump 7 is matched with the dimension of the limit groove 14

In this embodiment, the limiting protrusion 7 and the limiting groove 14 can be clamped for limiting.

Specifically, the size of the circular bump 2 is matched with that of the circular groove 11.

In this embodiment, when the coils are wound, the circular protrusion 2 and the circular groove 11 are clamped, and the positions between the coils are pressed.

Specifically, the wear-resistant rubber ring 16 is sleeved on the outer side of the rectangular wire body 1.

In this embodiment, wear-resisting rubber circle 16 can alleviate the degree of wear of coil when the use of outside parcel messenger's whole coil, can carry out segmentation parcel also can wrap up comprehensively at the finished product in-process to correspond different use cases, when not using wear-resisting rubber circle 16 simultaneously, rectangular wire body 1 can cup joint the joint each other spacing, the amalgamation, in order to deal with different service environment.

The utility model discloses a theory of operation and use flow: the intermittent high-frequency pulse current can be effectively prevented by arranging the polyimide film layer 12, the polyimide film layer 12 is formed by sintering a single surface of a corona-resistant polyimide film at high temperature, so that the sintered copper flat wire has the characteristics of corona-resistant performance, heat-conducting performance and excellent electrical performance of the corona-resistant polyimide film, in addition, the electrical and mechanical properties can be effectively improved by arranging the glass fiber layer 4, the insulating strength is improved, the defect of film abrasion caused by bending during winding is overcome, the flexibility and the pressure resistance of the wire are enhanced, meanwhile, the cost and the performance can be balanced, the abrasion degree of the whole coil can be reduced when the whole coil is used by arranging the abrasion-resistant rubber ring 16, the segmented wrapping or the comprehensive wrapping can be carried out, and the corona-resistant effect is further improved by arranging the mica tape layer 9 and the insulating paint layer 8 of the outer wrapping, the reinforcing ribs 15 may further increase the strength of the wire itself.

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

Claims

1. The utility model provides a high resistant corona glass fiber package copper flat wire of heat conduction, includes rectangular wire body (1), rectangular copper flat wire (13) and wear-resisting rubber circle (16), its characterized in that: a polyimide film layer (12) is fixedly arranged outside the rectangular copper flat wire (13), heat conducting metal sheets (10) are fixedly arranged on two sides of the outer part of the rectangular copper flat wire (13), a glass fiber layer (4) is fixedly arranged outside the polyimide film layer (12), a mica tape layer (9) is fixedly arranged outside the glass fiber layer (4), an insulating paint layer (8) is fixedly arranged outside the mica tape layer (9), a self-adhesive paint layer (5) is fixedly arranged outside the insulating paint layer (8), a circular groove (11) is formed in one side of the self-adhesive paint layer (5), a circular convex block (2) is fixedly installed on one side, far away from the circular groove (11), of the self-adhesive paint layer (5), the bottom of the self-adhesive paint layer (5) is provided with a limiting groove (14), and the top of the self-adhesive paint layer (5) is fixedly provided with a limiting convex block (7).

2. The high-thermal-conductivity corona-resistant glass fiber-covered copper flat wire according to claim 1, characterized in that: and the rectangular copper flat wire (13) is internally and fixedly provided with a copper wire core (3).

3. The high-thermal-conductivity corona-resistant glass fiber-covered copper flat wire according to claim 1, characterized in that: the top of the self-adhesive paint layer (5) is fixedly provided with two anti-slip pads (6), and the limiting convex block (7) is positioned between the two anti-slip pads (6).

4. The high-thermal-conductivity corona-resistant glass fiber-covered copper flat wire according to claim 1, characterized in that: the bottom of the self-adhesive paint layer (5) is fixedly provided with two reinforcing ribs (15).

5. The high-thermal-conductivity corona-resistant glass fiber-covered copper flat wire according to claim 1, characterized in that: the size specification of the limiting bump (7) is matched with that of the limiting groove (14).

6. The high-thermal-conductivity corona-resistant glass fiber-covered copper flat wire according to claim 1, characterized in that: the size of the round convex block (2) is matched with that of the round groove (11).

7. The high-thermal-conductivity corona-resistant glass fiber-covered copper flat wire according to claim 1, characterized in that: the wear-resistant rubber ring (16) is sleeved on the outer side of the rectangular wire body (1).