CN202258702U - Coil poured air duct structure - Google Patents
Coil poured air duct structure Download PDFInfo
- Publication number
- CN202258702U CN202258702U CN2011202742703U CN201120274270U CN202258702U CN 202258702 U CN202258702 U CN 202258702U CN 2011202742703 U CN2011202742703 U CN 2011202742703U CN 201120274270 U CN201120274270 U CN 201120274270U CN 202258702 U CN202258702 U CN 202258702U
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- CN
- China
- Prior art keywords
- coil
- air duct
- duct structure
- resin layer
- poured
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- Expired - Lifetime
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Abstract
The utility model relates to a coil poured air duct structure, and belongs to the technical field of production of transformers. The technical scheme is that: the coil poured air duct structure comprises a coil, a plurality of air channels (4), and a cylindrical resin layer, wherein the cylindrical resin layer is formed outside the coil by pouring; the plurality of the air channels are formed between the cylindrical resin layer and the coil; the cylindrical resin layer comprises an epoxy resin and a mixed layer which consists of a glass fiber mesh and a glass fiber cotton tape; the lead of the coil is led out by coil lead inserts (1) on a window (2); and an end insulation part (8) forms an insulation part at the end of the wire part (6) of the coil. Compared with the air duct structure of an impregnated dry-type transformer, the utility model has the advantages that: the coil poured air duct structure is neat and attractive in appearance, convenient to process, and does not scatter or drop. Simultaneously, the resin layer is a very good insulative material, and when the air duct is wound outside the poured coil, namely an insulative barrel is arranged outside the coil, so that the insulative structure of the coil is reinforced, and the insulation level of the transformer is improved.
Description
Technical field
The utility model relates to a kind of ventilating duct structure of molded coil, belongs to the transformer production technical field.
Background technology
In recent years, in the Dry-Transformer Technology field, the forced air cooling impregnated dry-type transformer of band ventilating duct structure has presented the trend of continuous rising.The forced air cooling transformer has increased corresponding deep bead and ventilating duct, is equipped with top blower fan and bottom blower fan again, can strengthen the heat-sinking capability of impregnated dry-type transformer greatly.The air-flow that blower fan produces all passes from have the ventilating duct than small air gap, thereby this air-flow just had very high blast and wind speed, and the heat that distributes on transformer coil surface carries out the exchange of heat through this high velocity air with extraneous.In impregnated dry-type transformer, be that online cake is directly put outward to the insulating part stay, outside stay, wind to have the insulating material of preimpregnation effect, the oven dry heating just can form ventilating duct again, and existing problems are: processing is inconvenient, scatters easily or comes off etc.And; In the cast-type dry-type transformer, still there is not the ventilating duct structure; Can not how simple in structure being used in the cast-type dry-type transformer of the ventilating duct of impregnated dry-type transformer better be used the ventilating duct structure in the cast-type dry-type transformer, be this area problem demanding prompt solution.
The utility model content
The purpose of the utility model provides a kind of ventilating duct structure of molded coil, improves heat-sinking capability, and is rational in infrastructure, improves the quality of products, and solves the problems referred to above that background technology exists.
The technical scheme of the utility model is: a kind of ventilating duct structure of molded coil, comprise coil, a plurality of air flue, tubular resin bed, and coil forms the tubular resin bed through cast outward, between tubular resin bed and coil, is provided with a plurality of air flues.
Said tubular resin bed comprises that the mixed layer that epoxy resin and glass fiber grid and glass fiber strap are formed constitutes jointly.
Lifting one's head of coil drawn through the winding protruding head inserts on the window, and the wire segment end of coil constitutes insulated part by the end insulation.
The manufacture method of the utility model, after the wire segment coiling of coil was accomplished, a plurality of air flue plates were placed in the outside, outside the air flue plate, directly twined the outer mixed layer that glass fiber grid and glass fiber strap are formed, and carried out the poured with epoxy resin of coil again; Behind the casting complete, extract the air flue plate out, will form the tubular resin bed of a band air passage structure like this in the coil outside.
The good effect of the utility model is: the utility model is compared with the ventilating duct structure of impregnated dry-type transformer, and it is beautiful clean and tidy, easy to process to have outward appearance; Advantages such as can not scattering or come off, simultaneously, because resin bed is good insulating material; Outside molded coil during this ventilating duct of coiling; Be equivalent to add and adorned a cover insulating cylinder, strengthened the insulation system of coil, strengthened the insulation level of transformer at coil.
Description of drawings
Fig. 1 looks cutaway view for the master of the utility model;
Fig. 2 is the vertical view of the utility model;
Fig. 3 and the utility model etc. axle survey view;
Among the figure: 1-winding protruding head inserts; The 2-window; The outer mixed layer of 3-; The 4-air flue; Mixed layer in the middle of the 5-; The 6-wire segment; Mixed layer in the 7-; 8-holds insulation; 9-air flue plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified through embodiment.
A kind of ventilating duct structure of molded coil comprises coil, a plurality of air flue 4, tubular resin bed, and coil forms the tubular resin bed through cast outward, between tubular resin bed and coil, is provided with a plurality of air flues.
Said tubular resin bed comprises that the mixed layer that epoxy resin and glass fiber grid and glass fiber strap are formed constitutes jointly.
Lifting one's head of coil drawn through the winding protruding head inserts 1 on the window 2, and wire segment 6 ends of coil constitute insulated part by end insulation 8.
The ventilating duct construction manufacturing method of molded coil:
Coil carries out coiling on loose tool; The interior mixed layer 7 that elder generation's coiling glass fiber grid and glass fiber strap are formed; Continue the wire segment 6 of coiling, the middle mixed layer 5 (molded coil of background technology is to just having poured into a mould at this moment) formed of coiling glass fiber grid and glass fiber strap again is placed into air flue plate 9 in the outside of coil wire segment; Outside air flue plate 9,, carry out the cast of coil more directly around the outer mixed layer 3 of glass fiber grid and glass fiber strap composition; Behind the casting complete, extract the air flue plate out, will form the tubular resin bed of a band air passage structure like this in the coil outside.
Claims (2)
1. the ventilating duct structure of a molded coil is characterized in that comprising coil, a plurality of air flue (4), tubular resin bed, and coil forms the tubular resin bed through cast outward, between tubular resin bed and coil, is provided with a plurality of air flues.
2. according to the ventilating duct structure of the said molded coil of claim 1, it is characterized in that lifting one's head of coil draw through the winding protruding head inserts (1) on the window (2), the wire segment of coil (6) end constitutes insulated part by end insulation (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202742703U CN202258702U (en) | 2011-08-01 | 2011-08-01 | Coil poured air duct structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202742703U CN202258702U (en) | 2011-08-01 | 2011-08-01 | Coil poured air duct structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258702U true CN202258702U (en) | 2012-05-30 |
Family
ID=46119908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202742703U Expired - Lifetime CN202258702U (en) | 2011-08-01 | 2011-08-01 | Coil poured air duct structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806955A (en) * | 2018-05-29 | 2018-11-13 | 保定天威保变电气股份有限公司 | It is a kind of to pour type power extraction coil with high anti-short circuit capability |
-
2011
- 2011-08-01 CN CN2011202742703U patent/CN202258702U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806955A (en) * | 2018-05-29 | 2018-11-13 | 保定天威保变电气股份有限公司 | It is a kind of to pour type power extraction coil with high anti-short circuit capability |
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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: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131119 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071051 BAODING, HEBEI PROVINCE TO: 071056 BAODING, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131119 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Patentee after: Baoding Tianwei Shunda Transformer Co., Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: Baoding Tianwei Group Co., Ltd. Patentee before: Baoding Tianwei Shunda Transformer Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |