CN201562557U - Coil interturn oil passage - Google Patents
Coil interturn oil passage Download PDFInfo
- Publication number
- CN201562557U CN201562557U CN2009203140677U CN200920314067U CN201562557U CN 201562557 U CN201562557 U CN 201562557U CN 2009203140677 U CN2009203140677 U CN 2009203140677U CN 200920314067 U CN200920314067 U CN 200920314067U CN 201562557 U CN201562557 U CN 201562557U
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- CN
- China
- Prior art keywords
- oil passage
- interturn
- coil
- heat
- dissipation
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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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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a transformer coil interturn oil passage, which belongs to the technical field of transformer manufacturing. The technical scheme includes that the transformer coil interturn oil passage comprises an insulating paper board (1) and insulating cushion blocks (2) which are arranged in a coil wire cake interturn; and the insulating cushion blocks are adhered onto the insulating paper board at certain intervals through insulating glue to form an interturn oil passage of a transformer coil. In the process of winding the coil, the interturn oil passage is placed into a winding interturn to form a heat-dissipation oil passage, and the heat-dissipation oil passage is simple in structure, convenient in operation and capable of effectively enlarging winding heat-dissipation area. The transformer coil interturn oil passage has the advantages of solving the problem that a large-capacity transformer winding is comparatively small in heat-dissipation area and low in heat-dissipation efficiency when in an OFAF cooling mode, facilitating realization, being capable of effectively increasing heat-dissipation passages and enlarging heat-dissipation area. The transformer coil interturn oil passage is suitable for being applied to a large-capacity transformer in a non-guide cooling mode.
Description
Affiliated technical field:
The utility model relates to a kind of transformer coil turn-to-turn oil duct, belongs to technical field of transformer manufacturing.
Background technology:
In transformer, overheated in the middle of operation in order to prevent coil, outside diameter is provided with axial oil duct in coil, and oil duct between cake is set between the line cake, to increase oil flow channel, increases area of dissipation.In the middle of the high-power transformer development, in order to prevent oil flow electrification, reduce to enter the oily flow velocity degree of device body, adopt the non-guiding type of cooling.Because oil is not directly imported in the middle of the device body, winding cools off by oily thermal siphon natural circulation, and the oil mass that flows through coil in the unit interval is corresponding to be reduced, and cooling effect is more far short of what is expected than forced oil-circulation guiding air cooling mode.For products with larger capacity, how more effective prevention winding is overheated, and this just need increase heat dissipation channel under the situation of the performance parameter that satisfies winding, increase area of dissipation.Axially increasing oil duct between coil turn between oil duct, cake on the basis of oil duct, to satisfy the requirement of heat radiation.
The utility model content:
The utility model purpose provides oil duct between a kind of coil turn, is convenient to realize, can effectively increase heat dissipation channel, increases area of dissipation, solves the problems referred to above that exist in the background technology.
The technical solution of the utility model is:
Oil duct comprises insulating board, cross-over block between coil turn, is arranged at winding wire cake turn-to-turn, and cross-over block is kept at a certain distance away with insulating cement to be bonded on the insulating board, constitutes the turn-to-turn oil duct of transformer coil.
The width of insulating board is narrower slightly than line cake, and thickness generally is no more than 1mm.
In the coil winding process this turn-to-turn oil duct is put in winding inter-turn and constitutes heat radiation oil duct, this heat radiation oil duct is simple in structure, is convenient to operation, can effectively increase the winding area of dissipation.
The beneficial effects of the utility model: it is less relatively to overcome under the OFAF type of cooling high-power transformer winding area of dissipation, the problem that radiating efficiency is low, be convenient to realize, can effectively increase heat dissipation channel, increase area of dissipation, the utility model suits adopting on the high-power transformer under the non-guiding type of cooling.
Description of drawings:
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is that the utility model is placed schematic diagram.
Among the figure: insulating board 1, cross-over block 2, coil 3.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
In an embodiment, oil duct comprises insulating board 1, cross-over block 2 between coil turn, is arranged at winding wire cake turn-to-turn, and cross-over block is kept at a certain distance away with insulating cement to be bonded on the insulating board, constitutes the turn-to-turn oil duct of transformer coil.
Use: at first cross-over block 2 usefulness insulating cements being kept at a certain distance away is bonded on the insulating board 1, with turn-to-turn oil duct dried, during coiling 3, the turn-to-turn oil duct is wound between the suitable wire turn after completing.
Claims (2)
1. oil duct between a coil turn is characterized in that comprising insulating board (1), cross-over block (2), is arranged at winding wire cake turn-to-turn, and cross-over block is kept at a certain distance away with insulating cement to be bonded on the insulating board, constitutes the turn-to-turn oil duct of transformer coil.
2. according to oil duct between the described coil turn of claim 1, it is characterized in that the width of insulating board is narrower slightly than line cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203140677U CN201562557U (en) | 2009-11-05 | 2009-11-05 | Coil interturn oil passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203140677U CN201562557U (en) | 2009-11-05 | 2009-11-05 | Coil interturn oil passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562557U true CN201562557U (en) | 2010-08-25 |
Family
ID=42627709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203140677U Expired - Fee Related CN201562557U (en) | 2009-11-05 | 2009-11-05 | Coil interturn oil passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420351A (en) * | 2020-10-30 | 2021-02-26 | 国网江苏省电力有限公司电力科学研究院 | High-voltage winding of ultrahigh-voltage high-capacity phase-shifting transformer and winding method |
-
2009
- 2009-11-05 CN CN2009203140677U patent/CN201562557U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420351A (en) * | 2020-10-30 | 2021-02-26 | 国网江苏省电力有限公司电力科学研究院 | High-voltage winding of ultrahigh-voltage high-capacity phase-shifting transformer and winding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20131105 |