CN202523519U - Coil structure for dry-type transformer - Google Patents
Coil structure for dry-type transformer Download PDFInfo
- Publication number
- CN202523519U CN202523519U CN2012201257014U CN201220125701U CN202523519U CN 202523519 U CN202523519 U CN 202523519U CN 2012201257014 U CN2012201257014 U CN 2012201257014U CN 201220125701 U CN201220125701 U CN 201220125701U CN 202523519 U CN202523519 U CN 202523519U
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- Prior art keywords
- voltage coil
- low
- coil
- dry
- type transformer
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- 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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- Insulating Of Coils (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a coil structure for a dry-type transformer. The coil structure for the dry-type transformer comprises a low-voltage coil and a high-voltage coil which is wound outside the low-voltage coil; a low-voltage coil inner membrane is arranged on the inner surface of the low-voltage coil; a high-voltage coil outer membrane is arranged on the outer surface of the high-voltage coil; and radiating air channels are formed in both the low-voltage coil and the high-voltage coil. The coil structure for the dry-type transformer is characterized in that an epoxy resin layer is arranged between the low-voltage coil and the high-voltage coil. According to the coil structure for the dry-type transformer, the epoxy resin layer and grid are filled between the high-voltage coil and the low-voltage coil and then the high-voltage coil and the low-voltage coil are poured together; each of the high-voltage coil and the low-voltage coil only needs to adopt one inner membrane and one outer membrane, and a mould is reduced from each phase, so that the moulding and assembling time are reduced correspondingly; the utilization rate of a pouring tank and the utilization rate of a drying room are improved; the electricity and the labor are saved; meanwhile, the high consistency of the high-voltage coil and the low-voltage coil can be ensured; and the assembly and the noise reduction are facilitated.
Description
Technical field
The utility model relates to dry-type transformer, and it relates to a kind of dry-type transformer coil structure in particular.
Background technology
Existing dry-type transformer is adopted by large-scale popularization in electrical network at present; But in manufacture course of products; Every kind of product high-voltage coil and low-voltage coil all need be made interior outer mold, and dress mould and cast separately also need be polished behind the casting complete; The forming height of high-voltage coil and low-voltage coil is difficult to be consistent, and makes troubles to the manufacturing.The upper end of high-voltage coil and low-voltage coil compresses through cushion block in use in addition, and the lower end is supported through cushion block, is air between high-tension coil and the low-voltage coil.
Summary of the invention
The purpose of the utility model is to overcome the weak point of above-mentioned prior art and a kind of dry-type transformer coil structure is provided.
The purpose of the utility model reaches through following measure: the dry-type transformer coil structure; It comprises low-voltage coil, the high-tension coil of cover outside low-voltage coil; Said low-voltage coil inner surface is provided with the low-voltage coil inner membrance; Said high-tension coil outer surface is provided with the high-tension coil adventitia, and said low-voltage coil and high-tension coil inside are equipped with heat dissipation wind channel, it is characterized in that: be provided with epoxy resin layer between said low-voltage coil and the high-tension coil.
In technique scheme, said epoxy resin layer thickness is 10mm
In technique scheme, be provided with the grid that is used to fill in the said epoxy resin layer.
In technique scheme, the heat dissipation wind channel in the said low-voltage coil is 1 to 3.
In technique scheme, the heat dissipation wind channel in the said high-tension coil is 1 to 2.
The utlity model has following advantage: this dry-type transformer coil structure, by being cast in together after epoxy resin layer and the grid filling, each high-voltage coil and low-voltage coil only need adopt an inner membrance and an adventitia between the high-voltage coil and low-voltage coil; Every mold that reduces mutually; Mould and installation time are adorned in corresponding minimizing, also can improve the utilance of pouring can and drying room, save the electricity charge and manual work; The height that also can guarantee high-voltage coil and low-voltage coil simultaneously is consistent, is convenient to assembling and reduces noise.
Description of drawings
Fig. 1 is the structural representation of traditional low-voltage coil of dry type transformer.
Fig. 2 is the structural representation of traditional dry-type transformer high-tension coil.
Fig. 3 is the structural representation of the utility model.
Among the figure: 1. low-voltage coil, 2. high-tension coil, 3. low-voltage coil inner membrance, 4. high-tension coil adventitia, 5. heat dissipation wind channel, 6. epoxy resin layer, 7. low-voltage coil adventitia, 8. high-tension coil inner membrance.
Embodiment
Below in conjunction with the performance of accompanying drawing detailed description the utility model, but they do not constitute the qualification to the utility model, only do for example.The clear more and understanding easily that will become through the advantage that the utility model is described simultaneously.
Consulting accompanying drawing can know: dry-type transformer new coil structure; It comprises low-voltage coil 1, the high-tension coil 2 of cover outside low-voltage coil 1; Low-voltage coil 1 inner surface is provided with low-voltage coil inner membrance 3, and high-tension coil 2 outer surfaces are provided with high-tension coil adventitia 4, and low-voltage coil 1 inside is provided with 1 to 3 heat dissipation wind channel 5; High-tension coil 2 inside are provided with 1 to 2 heat dissipation wind channel 5, are used for increasing heat radiation.Be provided with epoxy resin layer 6 between low-voltage coil 1 and the high-tension coil 2, thickness is 10mm.
During use, epoxy resin layer 6 is filled with multi-layer net (do not have among the figure and indicate) when coiling, uses resin-cast again behind the dress mould, low-voltage coil 1 is cast in, every mold that reduces mutually with high-tension coil 2.Reduce the dress mould time, improve pouring can and drying room utilance.
Claims (5)
1. dry-type transformer coil structure; It comprises low-voltage coil (1), the high-tension coil (2) of cover outside low-voltage coil (1); Said low-voltage coil (1) inner surface is provided with low-voltage coil inner membrance (3); Said high-tension coil (2) outer surface is provided with high-tension coil adventitia (4), and said low-voltage coil (1) is equipped with heat dissipation wind channel (5) with high-tension coil (2) inside, it is characterized in that: the epoxy resin layer (6) that is provided with between said low-voltage coil (1) and the high-tension coil (2).
2. dry-type transformer coil structure according to claim 1 is characterized in that: said epoxy resin layer (6) thickness is 10mm.
3. dry-type transformer coil structure according to claim 2 is characterized in that: said epoxy resin layer is provided with the grid that is used to fill in (6).
4. dry-type transformer coil structure according to claim 1 is characterized in that: the heat dissipation wind channel (5) in the said low-voltage coil (1) is 1 to 3.
5. dry-type transformer coil structure according to claim 1 is characterized in that: the heat dissipation wind channel (5) in the said high-tension coil (2) is 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201257014U CN202523519U (en) | 2012-03-29 | 2012-03-29 | Coil structure for dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201257014U CN202523519U (en) | 2012-03-29 | 2012-03-29 | Coil structure for dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523519U true CN202523519U (en) | 2012-11-07 |
Family
ID=47106457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201257014U Expired - Fee Related CN202523519U (en) | 2012-03-29 | 2012-03-29 | Coil structure for dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982971A (en) * | 2012-11-26 | 2013-03-20 | 王奉瑾 | High voltage winding of transformer |
| CN102982981A (en) * | 2012-12-04 | 2013-03-20 | 江苏亚威变压器有限公司 | Epoxy resin insulating transformer |
-
2012
- 2012-03-29 CN CN2012201257014U patent/CN202523519U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982971A (en) * | 2012-11-26 | 2013-03-20 | 王奉瑾 | High voltage winding of transformer |
| CN102982981A (en) * | 2012-12-04 | 2013-03-20 | 江苏亚威变压器有限公司 | Epoxy resin insulating transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20180329 |