CN218214963U

CN218214963U - High-voltage winding interlayer insulation paper AFA insulation structure

Info

Publication number: CN218214963U
Application number: CN202222155967.XU
Authority: CN
Inventors: 林观成
Original assignee: Shenzhen Meihong Electronic Technology Co ltd
Current assignee: Shenzhen Meihong Electronic Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-01-03
Anticipated expiration: 2032-08-16

Abstract

The utility model relates to a transformer winding insulation technical field just discloses a high voltage winding interlamination insulating paper AFA insulation system, including the iron core, the fixed cover of outer wall of iron core is equipped with and ends a position end ring, the last lateral wall that ends a position end ring is equipped with the cover and establishes the coil outside the iron core, the iron core overcoat is equipped with insulating assembly, the top cover of coil is equipped with the C type and ends a ring, the cavity has all been seted up to the left and right sides of iron core, two springs of the inner wall fixedly connected with of cavity, two the same root U type pole of lateral wall fixedly connected with of cavity is kept away from to the spring, the lateral wall that the spring was kept away from to the cavity is seted up two trompils that match each other with U type pole. The utility model discloses can end the position ring to the C type and carry out spacing fixed after installing the C type, improve the C type and end the position ring to the fixed ability of coil and insulating group.

Description

High-voltage winding interlayer insulation paper AFA insulation structure

Technical Field

The utility model relates to a transformer winding insulation technical field especially relates to a high-voltage winding interlaminar insulation paper AFA insulation system.

Background

The insulating paper is a generic name of paper for electrical insulation. The insulating material is used as the insulating material of various electric appliances such as cables, coils and the like. Besides good insulating properties and mechanical strength, the insulating material also has thermal stability, chemical compatibility, insensitivity to moisture and radiation resistance. But better insulation and stability are required for the transformers of the state, south and short circuit tests. Because the voltage surge generated by the short circuit is very large in the short circuit test. The high voltage winding can generate axial force, so that the winding is deformed and insulation is damaged.

A high-voltage winding interlaminar insulating paper AFA insulation system who proposes in patent grant publication No. CN 213242211U's patent, affiliated transformer winding insulation technical field, including the iron core, the iron core on be equipped with the coil that cup joints with iron core looks wound form, the coil lower extreme be equipped with iron core looks inlay the formula cup joint fixed end position bottom ring, the coil upper end be equipped with iron core looks inlay the formula cup joint fixed C type and end the position ring, coil and C type end position ring, coil and end all be equipped with insulating assemblies between position bottom ring, coil and iron core. The cable has the characteristics of simple structure, good tensile strength, high short-circuit resistance and long service life. The problem of transformer long-term operation poor stability is solved. The device is used, the coil and the insulating assembly are fixed through the C-shaped stop ring, the C-shaped stop ring is fixed outside the iron core in a friction mode, and the coil and the insulating assembly are not firmly fixed due to the fact that the surface of the iron core is smooth, friction is small, and the coil and the insulating assembly are not firmly fixed enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art C type and ending the position ring and fix coil and insulating assemblies, the C type ends the position ring and fixes outside the iron core through frictional mode, because the iron core surface is comparatively smooth, and frictional force is less, fixes not firm problem inadequately to coil and insulating assemblies, and the insulating paper AFA insulation system between a high-voltage winding layer that provides.

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

the utility model provides an insulating paper AFA insulation system between high voltage winding layer, includes the iron core, the fixed cover of outer wall of iron core is equipped with ends a position end ring, the last lateral wall that ends a position end ring is equipped with the cover and establishes the coil outside the iron core, the iron core overcoat is equipped with insulating assembly, the top cover of coil is equipped with the C type and ends a ring, the cavity has all been seted up to the left and right sides of iron core, two springs of inner wall fixedly connected with of cavity, two the same root U type pole of lateral wall fixedly connected with of cavity is kept away from to the spring, the cavity is kept away from the lateral wall of spring and is seted up two trompils that match each other with U type pole.

Preferably, the insulation assembly comprises AFA insulation paper and winding insulation paper.

Preferably, the AFA insulating paper comprises a polyester film and full-face offset paper.

Preferably, the PVD wear-resistant coating is sprayed on the left side and the right side of the AFA insulating paper and the winding insulating paper.

Preferably, the rod wall of the U-shaped rod is fixedly connected with a guide block, and the inner wall of the cavity is provided with a guide groove matched with the guide block.

Preferably, the spring is a copper alloy spring.

Compared with the prior art, the utility model provides a high-voltage winding interlaminar insulation paper AFA insulation system possesses following beneficial effect:

this high-voltage winding interlaminar insulation paper AFA insulation system ends position ring, cavity, spring, U type pole, trompil through the iron core that sets up, ends position end ring, coil, insulating assemblies, C type, can end the position ring back, carry out spacing fixed to C type, improved the C type and ended the fixed ability that the position ring was organized to coil and insulation.

Drawings

Fig. 1 is a schematic structural diagram of an AFA insulation structure of high-voltage winding interlayer insulation paper according to the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is the utility model provides an insulating assembly's internal structure schematic diagram among high voltage winding interlaminar insulation paper AFA insulation system.

In the figure: 1. an iron core; 2. a stop bottom ring; 3. a coil; 4. an insulating assembly; 5. a C-shaped stop ring; 6. a cavity; 7. a spring; 8. a U-shaped rod; 9. opening a hole; 10. AFA insulating paper; 11. winding insulating paper; 12. a polyester film; 13. full-adhesive paper; 14. PVD wear-resistant coatings; 15. a guide block; 16. a guide groove.

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.

Referring to fig. 1-3, a high voltage winding interlamination insulating paper AFA insulation system, including iron core 1, the fixed cover of outer wall of iron core 1 is equipped with ends position end ring 2, the last lateral wall that ends position end ring 2 is equipped with the cover and establishes coil 3 outside

iron core

1, 1 overcoat of iron core is equipped with insulating assembly 4, the top cover of coil 3 is equipped with the C type and ends position ring 5, cavity 6 has all been seted up to the left and right sides of iron core 1, two springs 7 of inner wall fixedly connected with of cavity 6, the same U type pole 8 of lateral wall fixedly connected with of cavity 6 is kept away from to two springs 7, cavity 6 is kept away from the lateral wall of spring 7 and is seted up two trompils 9 that match each other with U type pole 8.

The insulation assembly 4 comprises AFA insulation paper 10 and winding insulation paper 11, the AFA insulation paper 10 comprises a polyester film 12 and full adhesive paper 13, PVD wear-resistant coatings 14 are sprayed on the left side and the right side of the AFA insulation paper 10 and the left side and the right side of the winding insulation paper 11, the wear resistance of the insulation assembly 4 is improved, and the problem that the insulation assembly 4 is abraded due to friction is avoided.

The pole wall fixedly connected with guide block 15 of U type pole 8, the guide way 16 that matches each other with guide block 15 is seted up to the inner wall of cavity 6, through mutually supporting of guide block 15 and guide way 16, has increased the stability that U type pole 8 removed.

The spring 7 is a copper alloy spring which has excellent corrosion resistance and wear resistance and long service life.

The utility model discloses in, during the use, when installing the C type stop ring, press the lower extreme of U type pole 8 to the direction that is close to iron core 1, then stop 5 covers of ring with the C type and establish outside iron core 1, then the C type of gliding stops ring 5, stop ring 5 and remove back between the U type pole 8 both ends when the C type, loosen the lower extreme of U type pole 8, then press down U type pole 8's upper end, thereby stop ring 5 with the C type and slide below and coil 3 and the contact of insulating module 4 of U type pole 8, then loosen U type pole 8, the lower extreme that utilizes U type pole 8 stops ring 5's upper side wall to the C type and blocks spacingly, can compress tightly C type stop ring 5, the device can stop the ring after installing the C type, stop ring to the C type and carry out spacing fixed, the fixity of C type stop ring to coil and insulating group has been improved.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an insulating paper AFA insulation system between high voltage winding layer, includes iron core (1), its characterized in that, the fixed cover of outer wall of iron core (1) is equipped with ends position end ring (2), the last lateral wall that ends position end ring (2) is equipped with the cover and establishes coil (3) outside iron core (1), iron core (1) overcoat is equipped with insulating subassembly (4), the top cover of coil (3) is equipped with the C type and ends position ring (5), cavity (6) have all been seted up to the left and right sides of iron core (1), two springs (7) of inner wall fixedly connected with of cavity (6), two same U type pole (8) of lateral wall fixedly connected with that cavity (6) were kept away from in spring (7), cavity (6) are kept away from the lateral wall of spring (7) and are seted up trompil (9) that two and U type pole (8) match each other.

2. An AFA insulation structure of high voltage winding interlayer insulation paper, according to claim 1, characterized in that the insulation assembly (4) comprises AFA insulation paper (10) and winding insulation paper (11).

3. The AFA insulation structure of high voltage winding interlayer insulation paper according to claim 2, wherein the AFA insulation paper (10) comprises polyester film (12) and all-purpose adhesive paper (13).

4. The AFA insulation structure of the high-voltage winding interlayer insulation paper is characterized in that the PVD wear-resistant coating (14) is sprayed on the left side and the right side of the AFA insulation paper (10) and the winding insulation paper (11).

5. The AFA insulation structure of the high-voltage winding interlayer insulation paper according to claim 1, wherein a guide block (15) is fixedly connected to the rod wall of the U-shaped rod (8), and a guide groove (16) matched with the guide block (15) is formed in the inner wall of the cavity (6).

6. An AFA insulation structure of high voltage winding interlayer insulation paper according to claim 1, characterized in that the spring (7) is a copper alloy spring.