CN101950662B - Method for manufacturing wound core of triangular wound core transformer and product - Google Patents
Method for manufacturing wound core of triangular wound core transformer and product Download PDFInfo
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- CN101950662B CN101950662B CN2010102965538A CN201010296553A CN101950662B CN 101950662 B CN101950662 B CN 101950662B CN 2010102965538 A CN2010102965538 A CN 2010102965538A CN 201010296553 A CN201010296553 A CN 201010296553A CN 101950662 B CN101950662 B CN 101950662B
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Abstract
The invention relates to a method for manufacturing the wound core of a triangular wound core transformer and a product. The method comprises the following steps of: more reasonably combining the arrangement modes of cores; splicing three identical single frames to form a three-dimensional equilateral triangular core; winding coil stock into a core single frame by using a three-dimensional wound core winder; dividing a three-dimensional wound core into three single-frame cores and respectively winding, wherein each single frame is formed by continuously winding a plurality of trapezoid tapes with constantly changing widths; and splicing to form the three-dimensional wound core according to a three-dimensional equilateral triangle. After the spliced core is subjected to splicing and annealing treatment again, the three-phase core magnetic circuit of the product is completely symmetrical, magnetic resistance is greatly reduced and excitation current and no-load loss are obviously reduced. The wound core transformer has the advantages of lower running noise, more compact structure, high efficiency, energy and material conservation, low cost and high performance.
Description
Technical field
The present invention relates to a kind of processing and fabricating method and product of power transformer parts, particularly relate to a kind of 3-D triangle reel iron core transformer volume core manufacturing method and product, be mainly used in the making of 3-D triangle power transformer.
Background technology
Power transformer is one of equipment the most key in a kind of electrical power trans mission/distribution system, the whole electrical power trans mission/distribution system of good and bad directly influence of power transformer.Because power transformer mainly is to be used for carrying out according to user's needs the conversion equipment of voltage, thus in service at transformer, can produce some losses.Because mostly present electrical transformer cores be the planar alignment laminated structure, the deficiency of this kind structure be that magnetic circuit is asymmetric, magnetic resistance is big, no-load current is big, no-load loss is high and during operation noise big.In order to reduce the loss of transformer, a kind of 3-D triangle reel iron core transformer has been proposed recently, this triangle reel iron core transformer is that the iron core with transformer changes the iron core that triangle is arranged into.Like Chinese patent 99114376.0 and 00220995.0 a kind of cubic three phase transformer iron core with round section and triangle iron core transformer have been proposed respectively; This kind iron core and transformer magnetic circuit are symmetrical, magnetic resistance is little, no-load current is little, no-load loss is low, the operation noise is low, and it has played a strong progradation to the development of transformer.But the iron core of triangle core iron core transformer has changed triangle into and has arranged; This fabrication and processing for iron core has been brought disadvantageous place; Especially how iron core guarantees that impaction state forms a triangle iron core, has become to guarantee a key of whole transformer performance, and the iron core of present triangle iron core transformer often is difficult for reaching requirement in the manufacturing process of iron core; Cause the performance of whole transformer to be affected, therefore necessary this is solved.Do not find to have the bibliographical information of this respect as yet through the Searches of Patent Literature.
Summary of the invention
The object of the invention is in order to overcome the deficiency of existing triangle iron core transformer core production method; A kind of fabrication of iron core quality that can effectively guarantee the triangle iron core transformer is provided, makes the core manufacturing method and the triangle iron core transformer core of the triangle iron core transformer that the iron core of triangle iron core transformer can fit tightly.
The objective of the invention is to realize through following technical proposals; A kind of core manufacturing method of triangle iron core transformer has carried out rational combination with the arrangement mode of iron core, adopts three identical single frames to piece together three-dimensional equilateral triangle iron core; After iron core after the amalgamation passes through assembly unit and annealing in process again; Make the tri-phase iron core magnetic circuit of product symmetrical fully, magnetic resistance reduces greatly, and exciting curent, no-load loss significantly reduce.Energy-efficient, the material-saving that becomes that running noises is littler, structure is more compact, low cost, high-performance reel iron core transformer.The iron core of described triangle iron core transformer adopts volume iron core technology, and the technological process of volume iron core comprises following operation:
1) the parameter input curve cutting machine computer program of the core design computational chart being confirmed;
2) the silicon steel sheet coiled strip being sent into the slitting main frame through the blowing transfer station shears;
3) according to the inside casing selection of dimension iron core internal mold of the iron core single frame of preparing to roll;
4) with the special-purpose up-coiler of three-dimensional volume iron core coiled strip is turned to the iron core single frame;
5) anchor clamps are tied up in the annealing of iron core clamping;
6) iron core vacuum nitrogen annealing;
7) pull out mould with special-purpose drawing-die device;
8) open the iron core frame;
9) be coated with insulating varnish between iron core assembly unit face, add insulating paper between frame and frame;
10) three the iron core single frames that close; Being assembled in of iron core of volume fixes each single frame on the assembling clamp.
11) colligation plastic tape and deflation strap;
12) be coated with solidified paint on the iron core.
Describedly with the special-purpose up-coiler of three-dimensional volume iron core coiled strip is turned to the iron core single frame and be meant, solid is rolled up iron core be divided into three single frame iron cores and reel respectively, form three-dimensional volume iron core according to three-dimensional equilateral triangle amalgamation again; Said each single frame is to be formed by the trapezoidal strip continuous reeling that several width constantly change.During coiling, special-purpose up-coiler makes strip to one side synchronous shift automatically, carries out asymmetric coiling.Make the cross section be 30 inclinations angle.Thereby when guaranteeing three single frame amalgamations, amalgamation face can good fit.After iron core after the amalgamation passes through assembly unit and annealing in process again, make the tri-phase iron core magnetic circuit of product symmetrical fully, magnetic resistance reduces greatly, and exciting curent, no-load loss significantly reduce.Energy-efficient, the material-saving that becomes that running noises is littler, structure is more compact, low cost, high-performance reel iron core transformer.
3-D triangle reel iron core transformer according to above-mentioned manufacture method made is: a kind of triangle iron core transformer core; Adopt three identical single frames to piece together three-dimensional equilateral triangle iron core, each single frame is to be formed by the trapezoidal strip continuous reeling that several width constantly change.During coiling, up-coiler makes strip to one side synchronous shift automatically, carries out asymmetric coiling.Make the cross section be 30 inclinations angle.Thereby when guaranteeing three single frame amalgamations, amalgamation face can good fit.After iron core after the amalgamation passes through assembly unit and annealing in process again, make the tri-phase iron core magnetic circuit of product symmetrical fully, magnetic resistance reduces greatly, and exciting curent, no-load loss significantly reduce.Energy-efficient, the material-saving that becomes that running noises is littler, structure is more compact, low cost, high-performance reel iron core transformer.Because of iron core single frame four arc chord angles of reeling after accomplishing slightly are out of shape, iron core and pressing plate after the amalgamation have interference, make pressing plate can't be put into assigned address; This problem improves through the iron core technologic improvement, promptly uses mould to reel in the coiling iron core process; Making needs three rectangle frames of amalgamation at the arc chord angle place curve preferably to be arranged; Thereby at last bottom surface comparatively smooth end face is arranged after making three rectangle frame amalgamations, three iron core column of amalgamation make three wooden circular arc pressing plates better be pressed in the iron core top also more near semi arch; The center pressing plate also can finely compress coil through iron core simultaneously, has well solved pressing plate and iron core interference problem.
The invention has the beneficial effects as follows: core annealing technology provided by the present invention and annealing furnace regulations for technical operation are very big to the product quality influence; Sea great transformer company has disposed advanced vacuum annealing furnace apparatus; Through adjustment equipment and production technology; Shortened the annealing time of iron core greatly, and annealing curve fundamental sum design curve is identical, has improved the production efficiency and the performance level of iron core greatly.
Embodiment
To combine embodiment that the present invention is done further description below.
Embodiment one
A kind of core manufacturing method of triangle iron core transformer; The arrangement mode of iron core has been carried out more reasonably combination; Adopt three identical single frames to piece together three-dimensional equilateral triangle iron core, after the iron core after the amalgamation passes through assembly unit and annealing in process again, make the tri-phase iron core magnetic circuit of product symmetrical fully; Magnetic resistance reduces greatly, and exciting curent, no-load loss significantly reduce.Energy-efficient, the material-saving that becomes that running noises is littler, structure is more compact, low cost, high-performance reel iron core transformer.The iron core of described triangle iron core transformer adopts volume iron core technology, and the technological process of volume iron core comprises following operation:
1) the parameter input curve cutting machine computer program of the core design computational chart being confirmed;
2) the silicon steel sheet coiled strip being sent into the slitting main frame through the blowing transfer station shears;
3) according to the inside casing selection of dimension iron core internal mold of the iron core single frame of preparing to roll;
4) with the special-purpose up-coiler of three-dimensional volume iron core coiled strip is turned to the iron core single frame;
5) anchor clamps are tied up in the annealing of iron core clamping;
6) iron core vacuum nitrogen annealing;
7) pull out mould with special-purpose drawing-die device;
8) open the iron core frame;
9) be coated with insulating varnish between iron core assembly unit face, add insulating paper between frame and frame;
10) three the iron core single frames that close; Being assembled in of iron core of volume fixes each single frame on the assembling clamp.
11) colligation plastic tape and deflation strap;
12) be coated with solidified paint on the iron core.
Describedly with the special-purpose up-coiler of three-dimensional volume iron core coiled strip is turned to the iron core single frame and be meant, solid is rolled up iron core be divided into three single frame iron cores and reel respectively, form three-dimensional volume iron core according to three-dimensional equilateral triangle amalgamation again; Said each single frame is to be formed by the trapezoidal strip continuous reeling that several width constantly change.During coiling, special-purpose up-coiler makes strip to one side synchronous shift automatically, carries out asymmetric coiling.Make the cross section be 30 inclinations angle.Thereby when guaranteeing three single frame amalgamations, amalgamation face can good fit.After iron core after the amalgamation passes through assembly unit and annealing in process again, make the tri-phase iron core magnetic circuit of product symmetrical fully, magnetic resistance reduces greatly, and exciting curent, no-load loss significantly reduce.Energy-efficient, the material-saving that becomes that running noises is littler, structure is more compact, low cost, high-performance reel iron core transformer.
3-D triangle reel iron core transformer according to above-mentioned manufacture method made is: a kind of triangle iron core transformer core; Adopt three identical single frames to piece together three-dimensional equilateral triangle iron core, each single frame is to be formed by the trapezoidal strip continuous reeling that several width constantly change.During coiling, up-coiler makes strip to one side synchronous shift automatically, carries out asymmetric coiling.Make the cross section be 30 inclinations angle.Thereby when guaranteeing three single frame amalgamations, amalgamation face can good fit.After iron core after the amalgamation passes through assembly unit and annealing in process again, make the tri-phase iron core magnetic circuit of product symmetrical fully, magnetic resistance reduces greatly, and exciting curent, no-load loss significantly reduce.Energy-efficient, the material-saving that becomes that running noises is littler, structure is more compact, low cost, high-performance reel iron core transformer.Because of iron core single frame four arc chord angles of reeling after accomplishing slightly are out of shape, iron core and pressing plate after the amalgamation have interference, make pressing plate can't be put into assigned address; This problem improves through the iron core technologic improvement, promptly uses mould to reel in the coiling iron core process; Making needs three rectangle frames of amalgamation at the arc chord angle place curve preferably to be arranged; Thereby at last bottom surface comparatively smooth end face is arranged after making three rectangle frame amalgamations, three iron core column of amalgamation make three wooden circular arc pressing plates better be pressed in the iron core top also more near semi arch; The center pressing plate also can finely compress coil through iron core simultaneously, has well solved pressing plate and iron core interference problem.
Because of iron core single frame four arc chord angles of reeling after accomplishing slightly are out of shape, iron core and pressing plate after the amalgamation have interference, make pressing plate can't be put into assigned address; The present invention is through the iron core technologic improvement; Promptly in the coiling iron core process, use the mould that matches with iron core, making needs three rectangle frames of amalgamation at the arc chord angle place curve transition preferably to be arranged, thereby at last bottom surface comparatively smooth end face is arranged after making three rectangle frame amalgamations; Three iron core column of amalgamation are also more near semi arch; Make three wooden circular arc pressing plates better be pressed in the iron core top, the center pressing plate also can finely compress coil through iron core simultaneously, has well solved pressing plate and iron core interference problem.Properties of product standard value, design load and measured value such as following table:
Claims (1)
1. the core manufacturing method of a triangle iron core transformer adopts three identical single frames to piece together three-dimensional equilateral triangle iron core, makes the tri-phase iron core magnetic circuit of triangle iron core transformer symmetrical fully; The iron core of described triangle iron core transformer adopts volume iron core technology, it is characterized in that: the technological process of volume iron core comprises following operation:
1) the parameter input curve cutting machine computer program of the core design computational chart being confirmed;
2) the silicon steel sheet coiled strip being sent into the slitting main frame through the blowing transfer station shears;
3) according to the inside casing selection of dimension iron core internal mold of the iron core single frame of preparing to roll;
4) with the special-purpose up-coiler of three-dimensional volume iron core coiled strip is turned to the iron core single frame;
5) anchor clamps are tied up in the annealing of iron core single frame clamping;
6) iron core single frame vacuum nitrogen annealing;
7) pull out the iron core internal mold with the drawing-die device;
8) open the iron core single frame;
9) be coated with insulating varnish between iron core single frame assembly unit face, add insulating paper between frame and frame;
10) three the iron core single frames that close; On assembling clamp, fix each single frame;
11) colligation plastic tape and deflation strap;
12) be coated with solidified paint on the iron core;
Said each single frame is to be formed by the trapezoidal strip continuous reeling that several width constantly change; During coiling, special-purpose up-coiler makes strip to one side synchronous shift automatically, carries out asymmetric coiling; Make the cross section be the 30o inclination angle, thereby when guaranteeing three single frame amalgamations, amalgamation face can good fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102965538A CN101950662B (en) | 2010-09-29 | 2010-09-29 | Method for manufacturing wound core of triangular wound core transformer and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102965538A CN101950662B (en) | 2010-09-29 | 2010-09-29 | Method for manufacturing wound core of triangular wound core transformer and product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101950662A CN101950662A (en) | 2011-01-19 |
| CN101950662B true CN101950662B (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102965538A Expired - Fee Related CN101950662B (en) | 2010-09-29 | 2010-09-29 | Method for manufacturing wound core of triangular wound core transformer and product |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794340A (en) * | 2013-12-03 | 2014-05-14 | 柳州市五环水暖器材经营部 | Three-phase and five-column planar rolled iron core and manufacturing method for same |
| CN104465058B (en) * | 2014-11-27 | 2017-01-11 | 宁波奥克斯高科技有限公司 | Manufacturing method of transformer body of oil immersion type amorphous alloy transformer |
| CN205595183U (en) * | 2015-11-19 | 2016-09-21 | 齐侠 | Iron core is rolled up to hexagonal foldable triangular prism shape transformer opening in cross -section |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508364Y (en) * | 2001-11-30 | 2002-08-28 | 张明德 | Coiled iron core |
| CN1467761A (en) * | 2001-01-09 | 2004-01-14 | 何方城 | Binding type triangle roll core three-phase transformer |
| CN201204116Y (en) * | 2008-08-28 | 2009-03-04 | 广东海鸿变压器有限公司 | Solid wound core transformer core |
| CN201315229Y (en) * | 2008-12-16 | 2009-09-23 | 广东中电华强变压器有限公司 | Oil immersed 3D triangle rolled iron core transformer |
| CN101599358A (en) * | 2009-04-14 | 2009-12-09 | 无锡希恩电气有限公司 | The processing method of silicon steel ribbon iron core of direct current electric transmission and transformation radio-frequency reactor |
-
2010
- 2010-09-29 CN CN2010102965538A patent/CN101950662B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467761A (en) * | 2001-01-09 | 2004-01-14 | 何方城 | Binding type triangle roll core three-phase transformer |
| CN2508364Y (en) * | 2001-11-30 | 2002-08-28 | 张明德 | Coiled iron core |
| CN201204116Y (en) * | 2008-08-28 | 2009-03-04 | 广东海鸿变压器有限公司 | Solid wound core transformer core |
| CN201315229Y (en) * | 2008-12-16 | 2009-09-23 | 广东中电华强变压器有限公司 | Oil immersed 3D triangle rolled iron core transformer |
| CN101599358A (en) * | 2009-04-14 | 2009-12-09 | 无锡希恩电气有限公司 | The processing method of silicon steel ribbon iron core of direct current electric transmission and transformation radio-frequency reactor |
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| Publication number | Publication date |
|---|---|
| CN101950662A (en) | 2011-01-19 |
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Granted publication date: 20121114 Termination date: 20180929 |