CN104252955A - Broken-yoke iron core of three-phase amorphous alloy transformer - Google Patents
Broken-yoke iron core of three-phase amorphous alloy transformer Download PDFInfo
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- CN104252955A CN104252955A CN201410290367.1A CN201410290367A CN104252955A CN 104252955 A CN104252955 A CN 104252955A CN 201410290367 A CN201410290367 A CN 201410290367A CN 104252955 A CN104252955 A CN 104252955A
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Abstract
The invention discloses a broken-yoke iron core of a three-phase amorphous alloy transformer. The broken-yoke iron core comprises three unit iron cores, wherein upper unit iron yokes on the unit iron cores can be opened; each unit iron core is formed by nesting multiple single iron cores one by one, the cross section of each single iron core is in a special trapezoid shape with an upper bottom, a lower bottom, a straight waist and an arc waist, and the cross sections of each unit iron core column and each unit iron yoke are enabled to be basically in semicircular shapes. According to the broken-yoke iron core disclosed by the invention, each of three iron core columns is respectively formed by carrying out mutual butt joint between the diameter of the cross section of a left unit iron core column of one unit iron core and the diameter of the cross section of a right unit iron core column of the other unit iron core, the cross sections of the three iron core columns are basically in circular shapes, and an equilateral triangle shape is formed by circle centers of the cross sections of the three iron core columns. The broken-yoke iron core disclosed by the invention has the advantages that the performance is excellent, the noise is low, the materials are saved, and the cost is low; more importantly, transformer coils can be independently coiled, and great convenience is provided for the sleeving of the transformer coils.
Description
Technical field
The present invention relates to a kind of disconnected yoke iron-core of three-phase amorphous alloy transformer.
Background technology
Existing three-phase amorphous alloy (silicon steel) leg rectangular in cross-section, core construction is mostly four frame five posts or three frame three posts.
The cross section of existing three-phase amorphous alloy (silicon steel) leg is all rectangular, and core construction is mostly four frame pentastyle or three-frame and three poles.The core construction of this transformer has many shortcomings, and first the square-section of core limb is than circular cross section when coil turn is identical, consume the copper material of 11.1% more; Secondly every platform transformer single frame many (being made up of single or double) unshakable in one's determination, the mitre of iron yoke gap will increase, magnetic resistance also just increases thereupon, when transformer runs, under the effect of AC magnetic field, these seam crossings very easily cause many places Wow, thus produce very large noise.In addition, the magnetic flux density in the iron yoke of this core construction is 1.155 times of the magnetic flux density in core limb, and therefore it result also in no-load loss unshakable in one's determination increases.In addition, existing triangle Wound iron-core transformer is remains silent, and coil winding needs professional coil winding machine, makes the equipment investment of manufacturing enterprise larger, manufactures efficiency low, and processing technology is complicated, and changing of coils is complicated.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of disconnected yoke iron-core of three-phase amorphous alloy transformer is provided, it not only has the advantage that no-load loss is little, noise is low, save material and low cost of manufacture, the more important thing is that transformer coil can coiling separately, greatly facilitate the suit of transformer coil.
The technical scheme realizing above-mentioned purpose is: a kind of disconnected yoke iron-core of three-phase amorphous alloy transformer, comprise the unit core that three shapes are all identical with size, each unit core is the rectangle frame become with upper lower unit iron yoke piece by highly identical left and right unit core post, wherein
The upper unit iron yoke of each unit core can be opened;
Each unit core is formed according to nested by multiple monomer iron core respectively with left and right monomer core limb and upper and lower monomer iron yoke, the cross section of the monomer core limb of each monomer iron core and the cross section of monomer iron yoke all in one there is upper base, go to the bottom, the abnormity of straight line waist and a camber line waist is trapezoidal, and going to the bottom of the cross section of each monomer iron core is equal with the length of the upper base of adjacent monomer iron core, make the basic semicircular in shape of cross section of unit core post and unit iron yoke;
The disconnected yoke iron-core of described three-phase transformer is assembled into a 3-D triangle structure by three unit core according to the structure of equilateral triangle, three core limbs of the disconnected yoke iron-core of this three-phase transformer are to be docked mutually with the diameter of the cross section of the right unit core post of another unit core by the diameter of the cross section of the left unit core post of a unit core to form respectively, make the cross section of three core limbs all substantially rounded, and the center of circle of the cross section of three core limbs form an equilateral triangle.
The disconnected yoke iron-core of above-mentioned three-phase amorphous alloy transformer, wherein, the cross section of monomer core limb of the monomer iron core of inner side and the cross section of monomer iron yoke are one and have upper base, go to the bottom and the special-shaped isosceles trapezoid of two camber line waists to be positioned at described unit core.
The disconnected yoke iron-core of above-mentioned three-phase amorphous alloy transformer, wherein, each described monomer iron core is reeled by the amorphous alloy strips of Trapezoidal.
The disconnected yoke iron-core of above-mentioned three-phase amorphous alloy transformer, wherein, the extended line of the diameter of the circular cross section of three core limbs of the disconnected yoke iron-core of described three-phase transformer is all by the center of an equilateral triangle.
The technical scheme of the disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention, a 3-D triangle structure is assembled into according to the structure of equilateral triangle by the unit core of three openings, these three each unit core of unit core are formed according to nested by multiple monomer iron core respectively with left and right monomer core limb and upper and lower monomer iron yoke, the cross section of the monomer core limb of each monomer iron core and the cross section of monomer iron yoke are all trapezoidal in abnormity, make the basic semicircular in shape of cross section of unit core post and unit iron yoke, the cross section of three core limbs of assembled good three-phase transformer core is made to be external circle, make core section activity coefficient high, coefficient is between 0.945 ~ 0.955.The disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention not only has the advantage that no-load loss is little, noise is low, save material and low cost of manufacture, the more important thing is because iron core is open type, overcome the shortcoming of closed core coiling difficulty, transformer coil can coiling separately, greatly facilitate the suit of transformer coil, the various distribution oil-immersed type transformer identical with current plane amorphous core capacity and dry-type transformer can be manufactured.
Accompanying drawing explanation
Fig. 1 is the structural representation of the disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention;
Fig. 2 is the structural representation removing upper yoke in Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the cross-sectional view of the core limb of the disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention;
Fig. 5 is the structural representation of the unit core of the disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention.
Embodiment
In order to understand technical scheme of the present invention better, be described in detail by reference to the accompanying drawings below by embodiment particularly:
Refer to Fig. 1 to Fig. 5, the disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention, comprise the unit core 10 that three shapes are all identical with size, each unit core 10 is the rectangle frames be made up of highly identical left and right unit core post 13,13 ' and upper lower unit iron yoke 14,14 ', wherein:
Each unit core 10 there is a unit iron yoke 14 ' can open;
Each unit core 10 is formed according to nested by multiple monomer unshakable in one's determination 100 respectively with left and right monomer core limb and upper and lower monomer iron yoke, makes the basic semicircular in shape of cross section (external semicircle) of left and right unit core post 13,13 ' and upper lower unit iron yoke 14,14 '; The cross section of the monomer core limb of each monomer iron core 100 and the cross section of monomer iron yoke all in one there is upper base, go to the bottom, the abnormity of straight line waist and a camber line waist is trapezoidal, and going to the bottom of the cross section of each monomer iron core 100 is equal with the length of the upper base of adjacent monomer iron core, the cross section of monomer core limb of the monomer iron core 100 ' of inner side and the cross section of monomer iron yoke are one and have upper base, go to the bottom and the special-shaped isosceles trapezoid of two camber line waists to be positioned at unit core 10; Each monomer iron core 100 is reeled by the amorphous alloy strips of Trapezoidal;
Disconnected yoke iron-core 1 is assembled into a 3-D triangle structure according to the structure of equilateral triangle by three unit core 10;
Three core limbs 11 of disconnected yoke iron-core 1 are to be docked mutually with the diameter of the cross section of the right unit core post 13 ' of another unit core 10 by the diameter of the cross section of the left unit core post 13 of a unit core 10 to form respectively, make the cross section of three core limbs 11 all substantially rounded (external circle), and the center of circle of the cross section of three core limbs forms an equilateral triangle; The extended line of the diameter of the circular cross section of these three core limbs is all by the center 0 of an equilateral triangle.Three openable iron yokes 12 ' of disconnected yoke iron-core 1 are the upper unit iron yoke 14 ' of openable three unit core 10.
The disconnected yoke iron-core of three-phase amorphous alloy transformer of the present invention is that open type is unshakable in one's determination, makes transformer coil can coiling separately, greatly facilitates the suit of transformer coil.Three core limbs 11 due to disconnected yoke iron-core of the present invention are assembled by the core limb 13 of two unit core 10, three-phase transformer is broken the cross section substantially rounded (external circle) of three core limbs 11 of yoke iron-core 1, therefore there is the advantage that no-load loss is little, noise is low, save material and low cost of manufacture.The disconnected yoke iron-core magnetic circuit of this three-phase amorphous alloy transformer is completely equal, all symmetrical, overcomes the shortcoming of the three-phase current unbalance caused because magnetic circuit is not identical unshakable in one's determination in the past.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (4)
1. a disconnected yoke iron-core for three-phase amorphous alloy transformer, comprises the unit core that three shapes are all identical with size, and each unit core is the rectangle frame become with upper lower unit iron yoke piece by highly identical left and right unit core post, it is characterized in that,
The upper unit iron yoke of each unit core can be opened;
Each unit core is formed according to nested by multiple monomer iron core respectively with left and right monomer core limb and upper and lower monomer iron yoke, the cross section of the monomer core limb of each monomer iron core and the cross section of monomer iron yoke all in one there is upper base, go to the bottom, the abnormity of straight line waist and a camber line waist is trapezoidal, and going to the bottom of the cross section of each monomer iron core is equal with the length of the upper base of adjacent monomer iron core, make the basic semicircular in shape of cross section of unit core post and unit iron yoke;
The disconnected yoke iron-core of described three-phase transformer is assembled into a 3-D triangle structure by three unit core according to the structure of equilateral triangle, three core limbs of the disconnected yoke iron-core of this three-phase transformer are to be docked mutually with the diameter of the cross section of the right unit core post of another unit core by the diameter of the cross section of the left unit core post of a unit core to form respectively, make the cross section of three core limbs all substantially rounded, and the center of circle of the cross section of three core limbs form an equilateral triangle.
2. the disconnected yoke iron-core of three-phase amorphous alloy transformer according to claim 1, it is characterized in that, the cross section of monomer core limb of the monomer iron core of inner side and the cross section of monomer iron yoke are one and have upper base, go to the bottom and the special-shaped isosceles trapezoid of two camber line waists to be positioned at described unit core.
3. the disconnected yoke iron-core of three-phase amorphous alloy transformer according to claim 1 and 2, is characterized in that, each described monomer iron core is reeled by the amorphous alloy strips of Trapezoidal.
4. the disconnected yoke iron-core of three-phase amorphous alloy transformer according to claim 1, is characterized in that, the extended line of the diameter of the circular cross section of three core limbs of the disconnected yoke iron-core of described three-phase transformer is all by the center of an equilateral triangle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410290367.1A CN104252955A (en) | 2014-06-25 | 2014-06-25 | Broken-yoke iron core of three-phase amorphous alloy transformer |
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| CN201410290367.1A CN104252955A (en) | 2014-06-25 | 2014-06-25 | Broken-yoke iron core of three-phase amorphous alloy transformer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009567A1 (en) * | 1997-08-21 | 1999-02-25 | Alliedsignal Inc. | Segmented transformer core |
| CN1897176A (en) * | 2006-05-08 | 2007-01-17 | 张长增 | Production of sectional scrolling iron core |
| CN102682988A (en) * | 2012-05-28 | 2012-09-19 | 广东海鸿变压器有限公司 | Amorphous alloy transformer iron core of three-dimensional triangle structure |
| CN202487345U (en) * | 2012-01-17 | 2012-10-10 | 广东海鸿变压器有限公司 | Open type stereoscopic triangle amorphous alloy curly iron core |
| WO2013106994A1 (en) * | 2012-01-17 | 2013-07-25 | 广东海鸿变压器有限公司 | Open type stereoscopic triangle amorphous alloy reel iron core |
| WO2013108247A1 (en) * | 2012-01-17 | 2013-07-25 | U.T.T. Unique Transformer Technologies Ltd | Three-phase magnetic cores for magnetic induction devices and methods for manufacturing them |
| CN203966766U (en) * | 2014-06-25 | 2014-11-26 | 上海置信电气非晶有限公司 | A kind of disconnected yoke iron-core of three-phase amorphous alloy transformer |
-
2014
- 2014-06-25 CN CN201410290367.1A patent/CN104252955A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999009567A1 (en) * | 1997-08-21 | 1999-02-25 | Alliedsignal Inc. | Segmented transformer core |
| CN1897176A (en) * | 2006-05-08 | 2007-01-17 | 张长增 | Production of sectional scrolling iron core |
| CN202487345U (en) * | 2012-01-17 | 2012-10-10 | 广东海鸿变压器有限公司 | Open type stereoscopic triangle amorphous alloy curly iron core |
| WO2013106994A1 (en) * | 2012-01-17 | 2013-07-25 | 广东海鸿变压器有限公司 | Open type stereoscopic triangle amorphous alloy reel iron core |
| WO2013108247A1 (en) * | 2012-01-17 | 2013-07-25 | U.T.T. Unique Transformer Technologies Ltd | Three-phase magnetic cores for magnetic induction devices and methods for manufacturing them |
| CN102682988A (en) * | 2012-05-28 | 2012-09-19 | 广东海鸿变压器有限公司 | Amorphous alloy transformer iron core of three-dimensional triangle structure |
| CN203966766U (en) * | 2014-06-25 | 2014-11-26 | 上海置信电气非晶有限公司 | A kind of disconnected yoke iron-core of three-phase amorphous alloy transformer |
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Application publication date: 20141231 |