CN201689767U - Criss-cross seven-step seamed iron core used for dry-type transformer - Google Patents
Criss-cross seven-step seamed iron core used for dry-type transformer Download PDFInfo
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- CN201689767U CN201689767U CN2010201601239U CN201020160123U CN201689767U CN 201689767 U CN201689767 U CN 201689767U CN 2010201601239 U CN2010201601239 U CN 2010201601239U CN 201020160123 U CN201020160123 U CN 201020160123U CN 201689767 U CN201689767 U CN 201689767U
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Abstract
The utility model provides a criss-cross seven-step seamed iron core used for a dry-type transformer comprising an iron core, wherein the iron core is formed by connecting multiple layers of overlapped electrical steel sheets, both ends of the overlapped electrical steel sheets are respectively provided with a seaming area, and the electrical steel sheets at the seaming area are arranged in the 45-degree full tapered criss-cross seven-step mode; and the criss-cross seven-step arrangement is as follows: each seven electrical steel sheets are gathered in one group and each two sheets are overlapped to form the criss-cross seven-step mode. After adopting the 45-degree full tapered criss-cross seven-step seaming mode, the iron core lowers the magnetic flux density of the adjacent electrical steel sheets with air gaps, and reduces the times of magnetic lines of force horizontally traversing the air gaps; and compared with the traditional dry-type transformer with a transverse three-step iron core, the no-load loss is reduced by nearly 10 percent on average, and the noise is reduced by 2 to 3 dB on average; and the magnetic property of seamed parts of the traditional seamed iron core is improved, environmental noise pollution is alleviated, stock utilization is increased, and the magnetic saturation at crossed parts is reduced, therefore the criss-cross seven-step seamed iron core reduces the no-load loss and the noise of the transformer and plays the roles of saving energies and improving the quality of power supply.
Description
Technical field:
The utility model relates to the distribution transformer technical field, refers in particular to a kind of seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer.
Background technology:
Transformer is the device of conversion alternating voltage, electric current and impedance, and transformer is made up of iron core or magnetic core and coil, and coil has two or more windings, and the winding that wherein connects power supply is primary coil, and remaining winding is secondary coil.When being connected with alternating current in the elementary coil, just produce exchange flux in iron core or the magnetic core, make and induce voltage or electric current in the secondary coil.During at present traditional transformer was made, lamination was the stack mode that adopts horizontal three steppings, and the close BG of magnetic of the electrical sheet by the adjacent neighbour of air gap is 1.414 times of close B of iron core column magnetic, and the number of times that the magnetic line of force of average every layer of electrical sheet passes through air gap is 2 times.In this structure, the electrical sheet of the magnetic line of force by seam crossing laterally passes through produces eddy current and magnetic saturation, forms high loss zone and strong noise district.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of low-loss of dry-type transformer, low noise seven stepping staged seam iron cores in length and breadth of being used for are provided.
For achieving the above object, the scheme that provides provided by the utility model is: a kind of seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer, it includes iron core, iron core connects to form after by multilayer electrical sheet stack, electrical sheet two ends behind the stack are provided with seam region, the electrical sheet in the seam region adopt 45 ° entirely tiltedly in length and breadth seven stepping ladders arrange, it is to be one group by per seven electrical sheets that the described ladder of seven steps is in length and breadth arranged, a slice one is folded, seven steppings in length and breadth.
Described seven steppings in length and breadth are that the seam with the 4th electrical sheet of center is the center, three, the 5th seam is based on the 4th seam, laterally, vertically respectively advance 4mm, the second, the 6th seam laterally, is vertically respectively advanced 8mm on the basis of the 4th seam, and the first, the 7th seam then laterally, is vertically respectively advanced 12mm on the basis of the 4th seam.
Angle between described seven electrical sheet jointing lines of first electrical sheet jointing line to the after overlapping is 45 °.
Described electrical sheet after overlapping is provided with location hole.
Iron core of the present utility model adopts 45 ° entirely tiltedly in length and breadth after the seven stepping step-lap laminated modes, it is close to reduce the adjacent electrical sheet magnetic of air gap, reduce the magnetic line of force and cross the number of times of air gap more, compare with the horizontal three stepping iron core dry-type transformers of tradition, no-load loss on average reduces about 10%, noise on average reduces by 2～3dB, improve the magnetic property of conventional seams iron core at seam crossing, alleviate the noise circumstance pollution and increase stock utilization, reduced the magnetic saturation of staggered place, thereby reduced the no-load loss and the noise of transformer, played energy savings, improved power supply quality.
Description of drawings:
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is an A place enlarged diagram in the utility model.
Fig. 3 is a B place enlarged diagram in the utility model.
Reference numeral: 1-iron core, 2-seam region, 3-location hole.
Embodiment:
The utility model is described in further detail to accompanying drawing 3 below in conjunction with accompanying drawing 1, preferred embodiment of the present utility model is: a kind of seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer, it includes iron core 1, iron core 1 connects to form after by multilayer electrical sheet stack, electrical sheet two ends behind the stack are provided with seam region 2 and location hole 3, the electrical sheet that location hole 3 and keeper will stack after finishing is fixed, electrical sheet in the seam region 2 adopts 45 ° of tiltedly seven stepping ladders arrangements in length and breadth entirely, it is to be one group by per seven electrical sheets that described seven steps in length and breadth ladder is arranged, a slice one is folded, seven steppings in length and breadth.Described seven steppings in length and breadth are that the seam with the 4th electrical sheet of center is the center, three, the 5th seam is based on the 4th seam, laterally, vertically respectively advance 4mm, the second, the 6th seam laterally, is vertically respectively advanced 8mm on the basis of the 4th seam, and the first, the 7th seam then laterally, is vertically respectively advanced 12mm on the basis of the 4th seam.Angle between seven electrical sheet jointing lines of first electrical sheet jointing line to the after overlapping is 45 °.Iron core of the present utility model adopts 45 ° entirely tiltedly in length and breadth after the seven stepping step-lap laminated modes, it is close to reduce the adjacent electrical sheet magnetic of air gap, reduce the magnetic line of force and cross the number of times of air gap more, compare with the horizontal three stepping iron core dry-type transformers of tradition, no-load loss on average reduces about 10%, noise on average reduces by 2～3dB, improve the magnetic property of conventional seams iron core at seam crossing, alleviate the noise circumstance pollution and increase stock utilization, reduced the magnetic saturation of staggered place, thereby reduced the no-load loss and the noise of transformer, played energy savings, improved power supply quality.
The embodiment of the above is the preferred embodiment of the utility model only, is not to limit practical range of the present utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection range of the present utility model.
Claims (4)
1. seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer, it includes iron core (1), iron core (1) connects to form after by multilayer electrical sheet stack, it is characterized in that: the electrical sheet two ends behind the stack are provided with seam region (2), electrical sheet in the seam region (2) adopts 45 ° of tiltedly seven stepping ladders arrangements in length and breadth entirely, it is to be one group by per seven electrical sheets that described seven steps in length and breadth ladder is arranged, and a slice one is folded, seven steppings in length and breadth.
2. a kind of seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer according to claim 1, it is characterized in that: described seven steppings in length and breadth are that the seam with the 4th electrical sheet of center is the center, three, the 5th seam is based on the 4th seam, laterally, vertically respectively advance 4mm, the second, the 6th seam laterally, is vertically respectively advanced 8mm on the basis of the 4th seam, and the first, the 7th seam then laterally, is vertically respectively advanced 12mm on the basis of the 4th seam.
3. a kind of seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer according to claim 2, it is characterized in that: the angle between the seven electrical sheet jointing lines of first electrical sheet jointing line to the behind the stack is 45 °.
4. a kind of seven stepping staged seam iron cores in length and breadth that are used for dry-type transformer according to claim 1, it is characterized in that: the electrical sheet behind the stack is provided with location hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201601239U CN201689767U (en) | 2010-04-15 | 2010-04-15 | Criss-cross seven-step seamed iron core used for dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201601239U CN201689767U (en) | 2010-04-15 | 2010-04-15 | Criss-cross seven-step seamed iron core used for dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689767U true CN201689767U (en) | 2010-12-29 |
Family
ID=43378046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201601239U Expired - Lifetime CN201689767U (en) | 2010-04-15 | 2010-04-15 | Criss-cross seven-step seamed iron core used for dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689767U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851565A (en) * | 2014-02-15 | 2015-08-19 | 无锡巨龙硅钢片有限公司 | Filling type stepping transformer core |
| CN104851567A (en) * | 2014-02-15 | 2015-08-19 | 无锡巨龙硅钢片有限公司 | Comprehensive stepping joint iron core for transformer |
| CN109524230A (en) * | 2018-11-28 | 2019-03-26 | 沈阳工业大学 | A kind of control method and device of transformer core silicon-steel precision positioning |
-
2010
- 2010-04-15 CN CN2010201601239U patent/CN201689767U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851565A (en) * | 2014-02-15 | 2015-08-19 | 无锡巨龙硅钢片有限公司 | Filling type stepping transformer core |
| CN104851567A (en) * | 2014-02-15 | 2015-08-19 | 无锡巨龙硅钢片有限公司 | Comprehensive stepping joint iron core for transformer |
| CN109524230A (en) * | 2018-11-28 | 2019-03-26 | 沈阳工业大学 | A kind of control method and device of transformer core silicon-steel precision positioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528225 Guangdong city in Foshan province north of the town of Nanhai District Economic Development Zone, the industrial section of the North South China Sea Patentee after: GUANGDONG GUANGTE ELECTRIC CO. LTD. Address before: 528225 Guangdong city in Foshan province north of the town of Nanhai District Economic Development Zone, the industrial section of the North South China Sea Patentee before: Guangdong Guangte Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
|
| CX01 | Expiry of patent term |