CN219696201U - Foil coil structure supported by metal pipe air passage of dry-type transformer - Google Patents
Foil coil structure supported by metal pipe air passage of dry-type transformer Download PDFInfo
- Publication number
- CN219696201U CN219696201U CN202320482075.2U CN202320482075U CN219696201U CN 219696201 U CN219696201 U CN 219696201U CN 202320482075 U CN202320482075 U CN 202320482075U CN 219696201 U CN219696201 U CN 219696201U
- Authority
- CN
- China
- Prior art keywords
- stay
- air passage
- coil
- metal tube
- foil coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 64
- 239000002184 metal Substances 0.000 title claims abstract description 64
- 239000011888 foil Substances 0.000 title claims abstract description 36
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 230000032683 aging Effects 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The foil coil structure comprises a foil coil, wherein an air passage stay is annularly arranged inside a coil conductor inside the foil coil, the air passage stay is a metal tube air passage stay, the shape of the metal tube air passage stay is a rectangular strip pipe, the side edges of the metal tube air passage stay are annularly arranged inside the coil conductor, air passages are respectively arranged on the front side and the rear side of the metal tube air passage stay, the air passage insulation is realized, the shielding of the low-voltage foil coil air passage stay on the heat dissipation area of the low-voltage coil is reduced by changing the material and the structure of the low-voltage coil air passage stay, the low-voltage coil air passage has enough heat dissipation area, the heat inside the coil is taken away by the flow of air, the coil is kept at reasonable temperature, the operation accident caused by high-temperature aging of insulating materials is avoided, and the manufacturing cost can be reduced.
Description
Technical Field
The present disclosure relates to a foil coil structure for supporting an air passage of a metal tube of a dry-type transformer, and more particularly to a foil coil structure with an air passage for dissipating heat
Background
The dry-type transformer is widely applied to various industries because of the advantages of energy conservation, safety, reliability, good flame retardant property and the like, and a large amount of loss can be generated in the coil when the transformer operates, the loss can be transmitted in a heat form, the temperature of the coil of the transformer can be increased, and even the temperature exceeds the temperature which can be born by insulating materials used in the coil, so that the quality accident is caused by insulation aging. To avoid such faults, an axial air passage is provided inside most transformer coils to improve heat dissipation.
At present, a copper strip or an aluminum strip is used as a conductor for producing a low-voltage coil of a dry-type transformer, in order to improve heat dissipation capability, a heat dissipation air passage is arranged in the coil along the axial direction, and the air passage is supported by an insulated stay, so that the stay is made of an insulating material and is solid and is a heat poor conductor, the existence of the stay can block one fifth of the heat dissipation area of the coil, the heat dissipation effect of the air passage is reduced, the influence of the factors is considered, the size of the air passage is often increased during design, the temperature design allowance is increased, the increased material cost is increased, the volume of the transformer is increased, and in addition, the local temperature of a coil part contacted with the air passage stay is too high because of heat dissipation, the hidden danger of local insulation advanced ageing exists, and the operation reliability of the transformer is reduced.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides a foil coil structure supported by a metal tube air passage of a dry-type transformer, an air passage stay is annularly disposed inside a coil conductor inside the foil coil, the air passage stay is a metal tube air passage stay, the metal tube air passage stay is rectangular, the side edges of the metal tube air passage stay are annularly disposed inside the coil conductor, air passages are respectively disposed at the front and rear sides of the metal tube air passage stay, and the air passage insulation is provided.
The shape of the foil coil is a cylindrical hollow coil, a coil conductor is arranged in the foil coil, the coil conductor is a column coil wound in the foil coil, a metal pipe air passage stay is annularly arranged in the coil conductor, the coil is designed according to the temperature of an insulating stay structure, the size of an air passage can be reduced, the volume of a transformer coil is reduced, and the consumption of materials such as copper or aluminum, silicon steel sheets and the like of a main material of the transformer is reduced.
The cross-section shape of metal tube air flue stay is rectangular pipe, and the inside of metal tube air flue stay is equipped with the hollow heat conduction chamber from top to bottom of rectangle, and the broadside side of metal tube air flue stay links to each other with the broadside side of adjacent metal tube air flue stay, and metal tube air flue stay not only can not reduce the heat radiating area of foil coil, because it has increased the heat radiating surface for hollow tube shape moreover, under the same air flue size, has improved nearly 25% heat radiating area than originally with insulating stay's structure, makes the transformer coil operation at lower temperature, has improved the reliability of transformer operation.
The air passage insulation is insulation paint, the air passage insulation spraying is arranged on the front side and the rear side of the air passage stay of the metal pipe,
the metal pipe airway stay is made of aluminum, the adopted metal pipe is made of aluminum, compared with the original used insulating solid stay, the weight of the metal pipe airway stay is reduced, the metal pipe airway stay is more economical than the insulating stay under the condition that the airway stay is more expensive, the metal pipe airway stay has no pollution to the environment in the whole service period, and the metal pipe airway stay can be recycled after the service life, so that the manufacturing cost of the transformer can be reduced by about three percent by using the metal pipe airway stay, and the product of the utility model is produced in batches, thereby bringing considerable benefits for enterprises and having good social benefits.
The beneficial effects are that:
through changing the material and the structure of low-voltage foil coil air flue stay, reduce its shielding to low-voltage coil heat radiating area, make low-voltage coil air flue have sufficient heat radiating area, take away the inside heat of coil through the flow of air, make the coil keep at reasonable temperature, avoid insulating material high temperature ageing to cause the operation accident to can reduce manufacturing cost.
The metal pipe air passage stay not only can not reduce the heat dissipation area of the foil coil, but also improves the heat dissipation area by nearly 25% compared with the original structure of the insulating stay under the same air passage size because the air passage stay is hollow and tubular, so that the transformer coil operates at a lower temperature, and the operation reliability of the transformer is improved.
Compared with the prior insulating solid stay, the weight of the adopted metal pipe is reduced, the metal pipe air passage stay is more economical than the insulating stay under the condition that the price of the air passage stay is almost the same, and the metal pipe air passage stay has no pollution to the environment in the whole service period and can be recycled after the service life, so the manufacturing cost of the transformer can be reduced by about three percent by using the metal pipe air passage stay, and the product of the utility model is produced in batches, thereby bringing considerable benefit for enterprises and having good social benefit.
If the coil is designed according to the temperature of the insulating stay structure, the size of the air passage can be reduced, the volume of the transformer coil can be reduced, the consumption of materials such as copper or aluminum, silicon steel sheets and the like of the main materials of the transformer can be reduced,
drawings
FIG. 1 is a top view of a foil coil structure of a dry-type transformer metal tube airway support;
FIG. 2 is a front view of a foil coil structure of a dry-type transformer metal tube airway support;
FIG. 3 is a cross-sectional view of a metal tube airway stay;
in the figure; 1. foil coil, 2, metal tube airway stay, 3, coil conductor, 4, airway insulation.
Detailed Description
In order to enhance the understanding of the present utility model, the present utility model will be further described in detail with reference to the following examples and drawings, which are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.
Foil coil 1, metal tube airway stay 2, coil conductor 3, airway insulation 4.
As shown in fig. 1, 2 and 3;
the utility model provides a foil coil 1 structure that dry-type transformer metal pipe air flue supported, the inside annular of coil conductor 3 inside foil coil 1 is equipped with the air flue stay, the air flue stay be metal pipe air flue stay 2, metal pipe air flue stay 2 shape be rectangular strip pipe, the inside of establishing coil conductor 3 of annular arrangement that metal pipe air flue stay 2 side links to each other, both sides all are equipped with air flue insulation 4 around the metal pipe air flue stay 2, the shape of foil coil 1 is cylindrical hollow coil, the inside of foil coil 1 is equipped with coil conductor 3, coil conductor 3 is the column coil that twines inside foil coil 1, the inside annular arrangement of conductor of coil conductor 3 is equipped with metal pipe air flue stay 2, the cross-section shape of metal pipe air flue stay 2 is rectangular strip pipe, the inside of metal pipe air flue stay 2 is equipped with the hollow heat conduction chamber from top to bottom, the broadside of metal pipe air flue stay 2 links to each other with the broadside of adjacent metal pipe air flue stay 2, air flue insulation 4 is insulating paint, air flue insulation 4 is established in the front and back both sides of metal pipe air flue stay 2, the material of spraying metal pipe air flue stay 2 is aluminium.
Implementation examples;
the foil coil 1 structure supported by the metal pipe air passage of the dry-type transformer improves the solid insulating air passage stay used originally into a hollow tubular metal stay capable of conducting heat rapidly, and the material of the air passage insulation 4 is placed between the metal pipe air passage stay 2 and the conductors inside and outside the coil conductor 3, so that the metal pipe air passage stay 2 is not conducted with the conductors of the coil conductor 3, electricity is not conducted, and coil operation burnout caused by coil turn-to-turn wire short circuit is avoided.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a foil coil structure that dry-type transformer metal pipe air flue supported, the inside annular of coil conductor of foil coil inside is equipped with the air flue stay, its characterized in that, the air flue stay be the metal pipe air flue stay, the metal pipe air flue stay shape be rectangular strip pipe, the inside of establishing the coil conductor is arranged to the annular that the metal pipe air flue stay side links to each other, both sides all are equipped with the air flue insulation around the metal pipe air flue stay.
2. The foil coil structure of claim 1, wherein the foil coil is a cylindrical hollow coil, and the coil conductor is disposed inside the foil coil.
3. The foil coil structure of claim 1, wherein the coil conductor is a cylindrical coil wound inside the foil coil, and the inner part of the coil conductor is provided with a metal tube air passage stay in a ring shape.
4. The foil coil structure of claim 1, wherein the cross section of the metal tube air passage stay is a rectangular strip tube, a rectangular heat conducting cavity with upper and lower hollow parts is arranged in the metal tube air passage stay, and the broadside side of the metal tube air passage stay is connected with the broadside of the adjacent metal tube air passage stay.
5. The foil coil structure of claim 1, wherein the air passage insulation is an insulating paint, and the air passage insulation is sprayed on the front side and the rear side of the air passage stay of the metal tube.
6. The foil coil structure of claim 1, wherein the metal tube airway support is aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320482075.2U CN219696201U (en) | 2023-03-14 | 2023-03-14 | Foil coil structure supported by metal pipe air passage of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320482075.2U CN219696201U (en) | 2023-03-14 | 2023-03-14 | Foil coil structure supported by metal pipe air passage of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696201U true CN219696201U (en) | 2023-09-15 |
Family
ID=87967099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320482075.2U Active CN219696201U (en) | 2023-03-14 | 2023-03-14 | Foil coil structure supported by metal pipe air passage of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696201U (en) |
-
2023
- 2023-03-14 CN CN202320482075.2U patent/CN219696201U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105845378B (en) | A kind of high-power oil-immersed transformer | |
| CN202855498U (en) | Amorphous alloy oil immersed type transformer | |
| CN201638633U (en) | Low-voltage high-current high frequency water-cooled transformer | |
| CN219696201U (en) | Foil coil structure supported by metal pipe air passage of dry-type transformer | |
| CN102682962B (en) | Heat dissipation method for intermediate frequency amorphous alloy shell type transformer | |
| CN102682961A (en) | Shell-type transformer with improved heat dissipation performance | |
| CN203312733U (en) | Intensive-type enclosed bus groove provided with high-strength aluminum-magnesium alloy shell | |
| CN211016701U (en) | Air passage stay bar used in low-voltage coil of dry-type transformer | |
| CN214279763U (en) | Axial double-split single-phase dry-type transformer | |
| JP2007287956A (en) | Reactor | |
| CN202487357U (en) | Dry type transformer for explosion suppression type mobile substation for amorphous alloy mining | |
| CN109786072B (en) | Dry-type transformer | |
| CN209232563U (en) | A kind of three dimensional wound core natural grease Insulation Oil Transformer | |
| CN204966232U (en) | Energy -efficient type metallic glass power transformer | |
| CN205104326U (en) | Coil winding and high transformer that transships thereof | |
| CN211404257U (en) | Environment-friendly flame-retardant dry-type power transformer | |
| CN205104343U (en) | Photovoltaic power generation dry -type transformer | |
| CN204857414U (en) | Oil formula transformer | |
| CN212230203U (en) | Transformer oil tank body with novel magnetic shielding structure | |
| CN210606942U (en) | Low-power three-phase transformer | |
| CN211957387U (en) | Folding type planar open coiled iron core dry type transformer | |
| CN212676064U (en) | DC electric arc furnace, DC reactor for DC ore-smelting furnace | |
| CN215183440U (en) | High-voltage winding half-air-passage structure dry-type transformer | |
| CN2610461Y (en) | Flame-proof type air-immersed transformer | |
| CN211181905U (en) | Permalloy transformer iron core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |