CN101546643B - Novel iron core for electromagnetic voltage transformator and building method thereof - Google Patents
Novel iron core for electromagnetic voltage transformator and building method thereof Download PDFInfo
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- CN101546643B CN101546643B CN2008100351750A CN200810035175A CN101546643B CN 101546643 B CN101546643 B CN 101546643B CN 2008100351750 A CN2008100351750 A CN 2008100351750A CN 200810035175 A CN200810035175 A CN 200810035175A CN 101546643 B CN101546643 B CN 101546643B
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Abstract
The invention relates to a iron core for an electromagnetic voltage transformator and a building method thereof. The iron core comprises bar-shaped silicon-steel sheets, and is characterized in that the iron core is formed by stacking U-shaped silicon-steel sheets and the bar-shaped silicon-steel sheets, the U-shaped silicon-steel sheets comprise long ends and short ends, the bar-shaped silicon-steel sheets seal openings of the U-shaped silicon-steel sheets to form a layer of the iron core, the same two layers form a stack, and two adjacent stacks of U-shaped silicon-steel sheets are opposite. The widths of the bar-shaped silicon-steel sheets gradually increase toward the inside from outermost layers at both sides. Firstly, the U-shaped silicon-steel sheets are crosswise overlapped according to a mode of two for each stack, the two U-shaped silicon-steel sheets in each stack are same, the two adjacent stacks of the U-shaped silicon-steel sheets are opposite, the iron core is placed into the U-shaped silicon-steel sheets, each stack of bar-shaped silicon-steel sheets stacked at indentations of the U-shaped silicon-steel sheets are same, and the two adjacent stacks of bar-shaped silicon-steel sheets are opposite. The invention has the advantages that the invention has high building efficiency, reduces the distortion of magnetic circuits, and greatly improves the performance of the electromagnetic voltage transformator.
Description
Technical field
It is unshakable in one's determination to the present invention relates to a kind of instrument transformer, particularly a kind of iron core for electromagnetic voltage transformator and building method thereof.
Background technology
The laminated iron core that the iron core of at present general voltage transformer adopts is to dock from beginning to end with four stripe shape silicon steel sheets to surround a rectangular layer, and every layer is one folded, and adjacent two fold center in the opposite direction; Stack up according to this then, building an iron core for electromagnetic voltage transformator needs 1,000 multi-disc silicon steel sheets, and an experienced operator need build with three hours time; Because used silicon steel sheet is more, the time is longer, is easy to take mistake; And in case wrong just must dismantling build again, when the assembler body also will with the iron core of putting up wherein one side dismantle, wait that part of that first and second winding and barricade etc. will pull down after cover on the core limb is got well again to build again in order; And the difficulty of building again is bigger; Occur mistake more easily, inefficiency also causes damage to the plane of silicon steel sheet so repeatedly; The air gap that increases can make near the magnetic flux distribution it produce distortion; Thereby the voltage transformer no-load current is increased, and no-load error strengthens, and therefore how inventing a kind of novel iron core is a problem demanding prompt solution.
Summary of the invention
The objective of the invention is to solve and utilize four stripe shape silicon steel sheets to dock from beginning to end in the prior art to carry out unshakable in one's determination existing the problems referred to above that stack is built voltage transformer, a kind of iron core for electromagnetic voltage transformator and building method thereof are provided.The present invention designs a kind of iron core for electromagnetic voltage transformator; Comprise the bar shaped silicon steel sheet, it is characterized in that: piled up by U font silicon steel sheet and bar shaped silicon steel sheet and constitute, one is long and the other is short at the two ends of U font silicon steel sheet; The opening of bar shaped silicon steel sheet sealing U font silicon steel sheet; Constitute one deck unshakable in one's determination, identical two-layer be one folded, adjacent two U font silicon steel sheet reverse side each other between folded.The width of bar shaped silicon steel sheet is past interior gradually wide from the outermost layer of both sides.At first with U font silicon steel sheet according to every folded two juxtapositions; Whenever two folded U font silicon steel sheets are identical, and adjacent two U font silicon steel sheet reverse side each other between folded are installed first and second winding and barricade then on the U font silicon steel sheet of having built; Iron core is put into U font silicon steel sheet; At the bar shaped silicon steel sheet that the indentation, there of U font silicon steel sheet stacks, whenever folded bar shaped silicon steel sheet is identical, adjacent two bar shaped silicon steel sheet reverse side each other between folded.Advantage of the present invention is that the efficient of building is high, and in assembling, need not tear open repeatedly and take,
And it is half that the air gap unshakable in one's determination after building has reduced, and the less distortion of magnetic circuit has also reduced no-load current unshakable in one's determination and no-load error, has improved the performance of electromagnetic potential transformer greatly.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Below in conjunction with accompanying drawing and instance the present invention is elaborated.
Embodiment
Comprise bar shaped silicon steel sheet 1 among the figure; It is characterized in that: pile up by U font silicon steel sheet 2 and bar shaped silicon steel sheet 1 and constitute; One is long and the other is short at the two ends of U font silicon steel sheet 2, and the opening of bar shaped silicon steel sheet 1 sealing U font silicon steel sheet 2 constitutes one deck unshakable in one's determination; Identical two-layer be one folded, adjacent two U font silicon steel sheet 2 reverse side each other between folded.The width of bar shaped silicon steel sheet 1 is past interior gradually wide from the outermost layer of both sides.
At first with U font silicon steel sheet 2 according to every folded two juxtapositions; Whenever two folded U font silicon steel sheets 2 are identical, and adjacent two U font silicon steel sheet 2 reverse side each other between folded are installed first and second winding and barricade then on the U font silicon steel sheet of having built 2; Iron core is put into U font silicon steel sheet 2; At the bar shaped silicon steel sheet 1 that the indentation, there of U font silicon steel sheet 2 stacks, whenever folded bar shaped silicon steel sheet 1 is identical, adjacent two bar shaped silicon steel sheet 1 reverse side each other between folded.
Because toward interior gradually wide, so its cross section is one to be similar to circle from the outermost layer of both sides for bar shaped silicon steel sheet 1 width that stacks, on this is similar to the bar shaped silicon steel sheet 1 of cylinder, coil 3 is installed, can reduce magnetic resistance, improve the performance of whole electromagnetic potential transformer.The present invention greatly reduces labour intensity; Reduced error rate, made the operating efficiency of building iron core improve nearly four times, and the air gap of the iron core of building has reduced half the; Reduce no-load current unshakable in one's determination and no-load error, improved the performance of electromagnetic potential transformer greatly.
Claims (3)
1. iron core for electromagnetic voltage transformator; Comprise the bar shaped silicon steel sheet, it is characterized in that: piled up by U font silicon steel sheet and bar shaped silicon steel sheet and constitute, one is long and the other is short at the two ends of U font silicon steel sheet; The opening of bar shaped silicon steel sheet sealing U font silicon steel sheet; Constitute one deck unshakable in one's determination, identical two-layer be one folded, adjacent two U font silicon steel sheet reverse side each other between folded.
2. by the described a kind of iron core for electromagnetic voltage transformator of claim 1, it is characterized in that: the width of bar shaped silicon steel sheet is past interior gradually wide from the outermost layer of both sides.
3. the building method of an iron core for electromagnetic voltage transformator; It is characterized in that: at first with U font silicon steel sheet according to every folded two juxtapositions; Whenever two folded U font silicon steel sheets are identical, and adjacent two U font silicon steel sheet reverse side each other between folded are installed first and second winding and barricade then on the U font silicon steel sheet of having built; Iron core is put into U font silicon steel sheet; At the bar shaped silicon steel sheet that the indentation, there of U font silicon steel sheet stacks, whenever folded bar shaped silicon steel sheet is identical, adjacent two bar shaped silicon steel sheet reverse side each other between folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100351750A CN101546643B (en) | 2008-03-26 | 2008-03-26 | Novel iron core for electromagnetic voltage transformator and building method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100351750A CN101546643B (en) | 2008-03-26 | 2008-03-26 | Novel iron core for electromagnetic voltage transformator and building method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101546643A CN101546643A (en) | 2009-09-30 |
| CN101546643B true CN101546643B (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100351750A Active CN101546643B (en) | 2008-03-26 | 2008-03-26 | Novel iron core for electromagnetic voltage transformator and building method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101546643B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0353029A2 (en) * | 1988-07-27 | 1990-01-31 | Linton And Hirst Limited | Improvements in laminations |
| KR20020081564A (en) * | 2002-06-27 | 2002-10-28 | 신한코아 주식회사 | ballast stabilizer core |
| CN2528090Y (en) * | 2002-02-28 | 2002-12-25 | 峻达电子有限公司 | Transformer with parallel through slot magnetic conductor |
| CN2724168Y (en) * | 2004-08-06 | 2005-09-07 | 上海邦士利电子科技有限公司 | Low consumption material energy saving type inductive ballast |
| CN201054297Y (en) * | 2007-05-30 | 2008-04-30 | 上海吴淞电气实业有限公司 | A novel electromagnetic voltage mutual inductor iron core |
-
2008
- 2008-03-26 CN CN2008100351750A patent/CN101546643B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0353029A2 (en) * | 1988-07-27 | 1990-01-31 | Linton And Hirst Limited | Improvements in laminations |
| CN2528090Y (en) * | 2002-02-28 | 2002-12-25 | 峻达电子有限公司 | Transformer with parallel through slot magnetic conductor |
| KR20020081564A (en) * | 2002-06-27 | 2002-10-28 | 신한코아 주식회사 | ballast stabilizer core |
| CN2724168Y (en) * | 2004-08-06 | 2005-09-07 | 上海邦士利电子科技有限公司 | Low consumption material energy saving type inductive ballast |
| CN201054297Y (en) * | 2007-05-30 | 2008-04-30 | 上海吴淞电气实业有限公司 | A novel electromagnetic voltage mutual inductor iron core |
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| Publication number | Publication date |
|---|---|
| CN101546643A (en) | 2009-09-30 |
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