CN201556511U - Transformer coil - Google Patents
Transformer coil Download PDFInfo
- Publication number
- CN201556511U CN201556511U CN2009201997958U CN200920199795U CN201556511U CN 201556511 U CN201556511 U CN 201556511U CN 2009201997958 U CN2009201997958 U CN 2009201997958U CN 200920199795 U CN200920199795 U CN 200920199795U CN 201556511 U CN201556511 U CN 201556511U
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- CN
- China
- Prior art keywords
- circle
- low
- coil
- pressure
- high voltage
- 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 - Lifetime
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a transformer coil comprising a high voltage coil wound on the periphery of a low voltage coil, wherein the upper end of the low voltage coil is provided with a low voltage end loop (5); the upper end of the high voltage coil is provided with a high voltage end loop (3); the upper end surface of the high voltage end loop (3) is lower than that of the low voltage end loop (5); the upper end of the high voltage end loop (3) is also provided with a high voltage iron yoke loop (2); and the inner circumferential walls of the high voltage end loop (3) and the high voltage iron yoke loop (2) are respectively provided with an insulating paper board (4). The transformer coil leads the transformer to be relatively small in size and low in cost.
Description
Technical field
The utility model relates to transformer, specifically is a kind of transformer coil.
Background technology
The high-voltage coil and low-voltage coil of 10KV electric pressure mostly is layered structure greatly at present, promptly adopt the coiling of high-voltage coil and low-voltage coil integral type, direct coiling high-tension coil on the good low-voltage coil of coiling, make each group (being phase-splitting) coil turn to an integral body continuously, though can reduce the suit difficulty like this, also can increase the mechanical strength of coil, and in the time of reducing worker, but still have the following disadvantages: owing to be subjected to the constraint of traditional thinking, the axial height of general high-voltage coil and low-voltage coil is consistent, the upper surface that is high-pressure side circle and low-pressure end circle flushes, simultaneously when being subjected to the restriction of main insulation creepage distance, must guarantee that high-low pressure main empty path distance can not be less than 6mm, so just cause the diameter of coil of transformer bigger, thereby cause the transformer size big, cost is also high.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of transformer size that makes less, the transformer coil that cost is low.
The technical solution of the utility model is, a kind of transformer coil with following structure is provided, and comprises the high-tension coil that is wound on the low-voltage coil periphery, and the upper end of described low-voltage coil is provided with the low-pressure end circle, and the upper end of described high-tension coil is provided with the high-pressure side circle; The upper surface of described high-pressure side circle is lower than the upper surface of low-pressure end circle, and the upper end of described high-pressure side circle also is provided with high pressure iron yoke circle, and the internal perisporium of described high-pressure side circle and high pressure iron yoke circle is provided with insulating board.
After adopting above structure, the utility model compared with prior art, have the following advantages: because the upper surface of high-tension coil is lower than the upper surface of low-voltage coil, again because the insulating board of the internal perisporium of high-pressure side circle and high pressure iron yoke circle, so change the air line distance in original creepage path into curve distance, under the prerequisite that guarantees the original creepage distance between the high-low pressure, the distance of high-low pressure main empty path is narrowed down to 3.5mm, thereby can reduce the distance between the high-voltage coil and low-voltage coil, can make the size of transformer less, cost is low.
Description of drawings
Accompanying drawing is the cross-sectional view of transformer coil of the present utility model.
As shown in the figure: 1, cushion block, 2, high pressure iron yoke circle, 3, the high-pressure side circle, 4, insulating board, 5, the low-pressure end circle.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in the figure, transformer coil of the present utility model comprises the high-tension coil that is wound on the low-voltage coil periphery, and the upper end of described low-voltage coil is provided with low-pressure end circle 5, and the upper end of described high-tension coil is provided with high-pressure side circle 3; The upper surface of described high-pressure side circle 3 is lower than the upper surface of low-pressure end circle 5, and promptly the end face of high-pressure side circle 3 is along the end face that axially is lower than low-pressure end circle 5 of transformer coil.The upper end of described high-pressure side circle 3 also is provided with high pressure iron yoke circle 2, and the internal perisporium of described high-pressure side circle 3 and high pressure iron yoke circle 2 is provided with insulating board 4.The same end of described low-pressure end circle 5 and high pressure iron yoke circle 2 also is provided with cushion block 1.The height sum of described high-pressure side circle 3 and high pressure iron yoke circle 2 equates with the height of insulating board 4.
Below only be described, but can not be interpreted as it is restriction claim with regard to the utility model preferred embodiment.Structure of the present utility model can have other variations, is not limited to said structure, and in a word, all various variations of being done in the protection range of the utility model product independent claims are all in protection range of the present utility model.
Claims (2)
1. a transformer coil comprises the high-tension coil that is wound on the low-voltage coil periphery, and the upper end of described low-voltage coil is provided with low-pressure end circle (5), and the upper end of described high-tension coil is provided with high-pressure side circle (3); It is characterized in that: the upper surface of described high-pressure side circle (3) is lower than the upper surface of low-pressure end circle (5), the upper end of described high-pressure side circle (3) also is provided with high pressure iron yoke circle (2), and the internal perisporium of described high-pressure side circle (3) and high pressure iron yoke circle (2) is provided with insulating board (4).
2. transformer coil according to claim 1 is characterized in that: the height sum of described high-pressure side circle (3) and high pressure iron yoke circle (2) equates with the height of insulating board (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997958U CN201556511U (en) | 2009-10-31 | 2009-10-31 | Transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997958U CN201556511U (en) | 2009-10-31 | 2009-10-31 | Transformer coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556511U true CN201556511U (en) | 2010-08-18 |
Family
ID=42616200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201997958U Expired - Lifetime CN201556511U (en) | 2009-10-31 | 2009-10-31 | Transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592796A (en) * | 2012-03-19 | 2012-07-18 | 正泰电气股份有限公司 | End structure of voltage regulating coil of transformer |
-
2009
- 2009-10-31 CN CN2009201997958U patent/CN201556511U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592796A (en) * | 2012-03-19 | 2012-07-18 | 正泰电气股份有限公司 | End structure of voltage regulating coil of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |