CN2906856Y - Thin resin insulated dry-type transformer - Google Patents
Thin resin insulated dry-type transformer Download PDFInfo
- Publication number
- CN2906856Y CN2906856Y CN 200620026228 CN200620026228U CN2906856Y CN 2906856 Y CN2906856 Y CN 2906856Y CN 200620026228 CN200620026228 CN 200620026228 CN 200620026228 U CN200620026228 U CN 200620026228U CN 2906856 Y CN2906856 Y CN 2906856Y
- Authority
- CN
- China
- Prior art keywords
- layer
- cloth
- glass grid
- type transformer
- aluminium foil
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a thin layer resin insulation dry-type transformer, comprising a core, a low-voltage winding and a high-voltage winding. The utility model is characterized in that the high-voltage winding is composed of a plurality of distant aluminum foil conductors and epoxy resin layer which is positioned between the different aluminum foil conductors; an internal glass grid cloth layer and an external glass grid cloth layer are positioned at the inside and outside of the distant aluminum foil conductors; the thin layer of epoxy is positioned at the outside of the external glass grid cloth layer. The utility model has the advantages of simple structure, improvement of the radiation condition of the coil, and saving of the amount of the resin.
Description
(1) field under:
The utility model belongs to a kind of transformer, particularly a kind of pellicular resins insulating dry type transformer.
(2) background technology:
At present, resin-insulated dry power transformer commonly used, in order to guarantee the mechanical strength of coil, the thickness of casting resin must be more than 6～8 millimeters, and the inside and outside wall resin thickness of coil also requires evenly, therefore in special casting mold, finish, manufacturing process is very complicated, because mixture of epoxy resins itself is the non-conductor of heat, resin is thicker, thermal diffusivity is poorer again, coil temperature raises, and must be directed at insulating material and be easy to wear out.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of pellicular resins insulating dry type transformer, and it can overcome above-mentioned shortcoming, and under the requirement that can guarantee the coil mechanical strength, the thickness of attenuate casting resin layer has also been simplified molding process and equipment.
The technical solution of the utility model: a kind of pellicular resins insulating dry type transformer, comprise iron core, low pressure winding and high pressure winding, it is characterized in that the high pressure winding is to be made of aluminium foil conductor at interval and the epoxy resin layer between each section aluminium foil conductor, glass grid layer of cloth and outer glass grid layer of cloth in the aluminium foil conductor medial and lateral at said interval are provided with, the glass grid layer of cloth outside is provided with the epoxy resin thin layer outside.
The inside and outside glass grid layer of cloth that above-mentioned said aluminium foil conductor medial and lateral are provided with is to be made of the fine band braiding of alkali-free glass, and fills up resin in grid.
Superiority of the present utility model is: 1, owing to the molding process of having simplified simple in structure; 2, be that the interior glass grid layout that is soaked with resin is 2.5 millimeters because of reducing to internal layer, outerly avoided the thickness resin, improved the coil radiating condition for the outer glass grid layer of cloth that is soaked with resin adds that the epoxy resin thin layer is 3～4 millimeters; 3, save resin demand.
(4) description of drawings:
Accompanying drawing 1 is the overall structure schematic diagram of the related a kind of pellicular resins insulating dry type transformer of the utility model.
Accompanying drawing 2 is the high pressure winding part section structure enlarged diagram of the related a kind of pellicular resins insulating dry type transformer of the utility model.
Wherein: 1, iron core, 2, the low pressure winding, 3, the high pressure winding, 3-1, conductor foil, 3-2, interior glass grid layer of cloth, 3-3, outer glass grid layer of cloth, 3-4, epoxy resin layer, 3-5, epoxy resin thin layer.
(5) embodiment:
Embodiment: a kind of pellicular resins insulating dry type transformer (seeing Fig. 1-2), comprise iron core 1, low pressure winding 2 and high pressure winding 3, it is characterized in that high pressure winding 3 is to be made of aluminium foil conductor 3-1 at interval and the epoxy resin layer 3-5 between each section aluminium foil conductor, glass grid layer of cloth 3-2 and outer glass grid layer of cloth 3-3 in the aluminium foil conductor 3-1 medial and lateral at said interval are provided with, the glass grid layer of cloth 3-3 outside is provided with epoxy resin thin layer 3-4 outside.
Interior glass grid layer of cloth 3-2 that above-mentioned said aluminium foil conductor 3-1 medial and lateral are provided with and outer glass grid layer of cloth 3-3 are made of the fine band braiding of alkali-free glass, and fill up resin in grid.
Be woven into interior glass grid layer of cloth 3-2 and the outer glass grid layer of cloth 3-3 that equates grid plan by the alkali-free fabric strip, oven dry is the semi-solid preparation shape behind the impregnating resin, owing to fill up grid with resin, has high tensile strength, guarantees the requirement of coil mechanical strength.
Claims (2)
1, a kind of pellicular resins insulating dry type transformer, comprise iron core, low pressure winding and high pressure winding, it is characterized in that the high pressure winding is to be made of aluminium foil conductor at interval and the epoxy resin layer between each section aluminium foil conductor, glass grid layer of cloth and outer glass grid layer of cloth in the aluminium foil conductor medial and lateral at said interval are provided with, the glass grid layer of cloth outside is provided with the epoxy resin thin layer outside.
2,, it is characterized in that the inside and outside glass grid layer of cloth that said aluminium foil conductor medial and lateral are provided with is to be made of the fine band braiding of alkali-free glass, and in grid, fill up resin according to the said a kind of pellicular resins insulating dry type transformer of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026228 CN2906856Y (en) | 2006-05-31 | 2006-05-31 | Thin resin insulated dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026228 CN2906856Y (en) | 2006-05-31 | 2006-05-31 | Thin resin insulated dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906856Y true CN2906856Y (en) | 2007-05-30 |
Family
ID=38115498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620026228 Expired - Fee Related CN2906856Y (en) | 2006-05-31 | 2006-05-31 | Thin resin insulated dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906856Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661838B (en) * | 2009-09-08 | 2011-10-05 | 保定天威集团有限公司 | Preparation method of quadrate foil type coil insulation paper roll |
| CN102254673A (en) * | 2011-01-19 | 2011-11-23 | 江苏宝亨新电气有限公司 | Externally encapsulated insulation structure of transformer coils |
| CN105405608A (en) * | 2015-12-03 | 2016-03-16 | 浙江宝威电气有限公司 | Modulating capacity transformer winding |
-
2006
- 2006-05-31 CN CN 200620026228 patent/CN2906856Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661838B (en) * | 2009-09-08 | 2011-10-05 | 保定天威集团有限公司 | Preparation method of quadrate foil type coil insulation paper roll |
| CN102254673A (en) * | 2011-01-19 | 2011-11-23 | 江苏宝亨新电气有限公司 | Externally encapsulated insulation structure of transformer coils |
| CN105405608A (en) * | 2015-12-03 | 2016-03-16 | 浙江宝威电气有限公司 | Modulating capacity transformer winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIDA ELECTRIC APPLICANCE CO., LTD. Free format text: FORMER OWNER: TIANJIN TAIDA ENERGY-SAVING TECHNOLOGY INVESTMENT ADVISORY CO., LTD. Effective date: 20090522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: No. 70, Ning Ning Road, Tianjin Development Zone, Tianjin, China: 300457 Patentee after: Taida Electric Co Ltd Address before: No. seventh, 36 Avenue, Tianjin Development Zone, Tianjin, China: 300457 Patentee before: Tianjin Taida Energy-saving Technology Investment Consulting Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20140531 |