CN102456473A - Detachable silicon-steel sheet coiled iron core - Google Patents
Detachable silicon-steel sheet coiled iron core Download PDFInfo
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- CN102456473A CN102456473A CN2010105285930A CN201010528593A CN102456473A CN 102456473 A CN102456473 A CN 102456473A CN 2010105285930 A CN2010105285930 A CN 2010105285930A CN 201010528593 A CN201010528593 A CN 201010528593A CN 102456473 A CN102456473 A CN 102456473A
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Abstract
An iron core for manufacturing a coiled iron core transformer is disclosed. The iron core is formed by coiling an iron core material; the iron core 5 is provided with a joint seam 6 in the thickness extension direction thereof; and the joint seam is a W-shaped joint seam. The W-shaped joint seam is located in any direction within the circumference of 360 degrees of the iron core leg of the transformer. The area of the jointed part of the iron core jointed by the W-shaped joint seam is greatly increased so that the magnetic resistance of the iron core at the jointed part is obviously reduced; an open type coiled iron core transformer formed by the iron core is capable of effectively reducing the no-load loss of the transformer and reducing noises; as a result, the working efficiency of the transformer is improved; and the influence of the transformer noises on the environment is reduced.
Description
Technical field:
The present invention relates to a kind of transformer core, be specifically related to a kind of iron core of Wound iron-core transformer, especially a kind of removable volume is unshakable in one's determination.
Background technology
Transformer extensive use city electric power, metallurgy, chemical industry, increasing along with China's rapid economy development to the demand of transformer, require also increasingly highly, especially the no-load loss and the noise of transformer are had higher requirement especially.
No matter existing transformer core is single-phase or three-phase structure, and a kind of is plane laminated core structure, and a kind of is the volume core construction.Plane stacked existence seam unshakable in one's determination causes the loss height more, no-load current is big, noise is big, need a lot of process equipment investments, the utilance too low (about about 92%) of silicon steel sheet or the like some problems.So beginning to put into volume manufacturing unshakable in one's determination to sight, people come up.Volume jointless structure unshakable in one's determination has reduced no-load loss and noise.When making transformer coil, must use special coil winding machine coiling on core limb but closed volume is unshakable in one's determination, complex process is made difficulty; And it is big to take up room, and cost receives process technology limit than high during coiling; Be difficult to take up, bad mechanical strength, thus cause anti-short circuit capability poor; It is more difficult to want molded coil to make dry-type transformer, and can't keep in repair, and efficient is very low.So Wound iron-core transformer can not get wideling popularize in China's transformer industry.
Fig. 1 is the core construction sketch map of the Wound iron-core transformer of a kind of three-phase three-column in the prior art.
This iron core is made up of two identical inside casings 1 and a housing 2, and each iron core all is made up of two different frame posts.
Fig. 2 is a structural representation unshakable in one's determination in the prior art.
Fig. 3 is a side schematic view shown in Figure 2.
In order to simplify the manufacturing processing technic of Wound iron-core transformer, improve the Wound iron-core transformer working (machining) efficiency, some developed countries have adopted open type volume unshakable in one's determination 3; Its coil and iron core can separately be made, and at last coil volume opening part 4 unshakable in one's determination are inserted in core limb, accomplish the assembling of device body; Improved operating efficiency; But because iron core need be taken apart, being inserted in the coil back core needs overlap joint again, and technology extremely bothers.
With respect to closed Wound iron-core transformer, the manufacturing process of open type Wound iron-core transformer is simple relatively, but its iron core is to form through the mode that straight line splices, and magnetic resistance unshakable in one's determination is increased, thereby causes that volume no-load loss unshakable in one's determination increases, the noise increasing; According to relevant data statistics, the open type volume is unshakable in one's determination after the mode through the straight line splicing forms iron core, and it is about 10% that its no-load loss increases, and its noise increases the 5-8 decibel, and the efficient of Wound iron-core transformer is reduced.
How solving open type and roll up the magnetic resistance between Mosaic face unshakable in one's determination, reduce the no-load loss of Wound iron-core transformer, reduce noise, improve the operational efficiency of Wound iron-core transformer, reduce the influence of transformer to surrounding environment, is the problem that patent of the present invention need solve.
Summary of the invention:
The purpose of this invention is to provide a kind of iron core that is used for Wound iron-core transformer; Its iron core magnetic resistance when work is little; Utilize the Wound iron-core transformer of this iron core manufacturing can reduce the no-load loss of Wound iron-core transformer greatly; Reduce noise, thereby improve the operating efficiency of transformer, reduce pollution environment.
In order to address the above problem; The present invention provides a kind of iron core (comprising three-phase and single-phase), and this iron core rolls with silicon steel sheet and forms, and cross section unshakable in one's determination can be circle, ellipse, square; And should have splicing seams along its thickness bearing of trend by iron core, said splicing seams is " W " shape seam.
Said splicing seams is " W " shape seam.
Said splicing seams is " W " shape seam, and angle is α.
The position of said " W " shape splicing seams is 360 ° of arbitrary directions of transformer stem.
Said core material is a silicon steel sheet.
Iron core provided by the invention, its jointing positions adopt " W " shape seam to connect, and the splicing area of jointing positions is increased greatly, have reduced the magnetic resistance between Mosaic face, thus reduced no-load loss unshakable in one's determination, reduced noise.Add up according to test data; The iron core that adopts the mode of " W " shape seam splicing to form has only increased approximately 4% than the volume no-load loss unshakable in one's determination of remaining silent, noise has also only increased the 1-2 decibel; And copper consumption has reduced 10%, has had greatly with the performance unshakable in one's determination of splicing through straight line and has improved.
Description of drawings:
Fig. 1 is the core construction sketch map of the Wound iron-core transformer of a kind of three-phase three-column in the prior art.
Fig. 2 is a structural representation unshakable in one's determination in the prior art.
Fig. 3 is a side schematic view shown in Figure 2.
Fig. 4 is the structural representation of a practical implementation example unshakable in one's determination provided by the present invention.
Fig. 5 is the side schematic view shown in the figure.
Fig. 6 is the structural representation of a practical implementation example of Mosaic face unshakable in one's determination provided by the present invention.
Fig. 7 is the structural representation of another practical implementation example of Mosaic face unshakable in one's determination provided by the present invention.
Fig. 8 and Fig. 9 are the structural representation of a practical implementation example of three-phase three-limb transformer core provided by the present invention.
Embodiment:
Core of the present invention provides a kind of iron core that is used for Wound iron-core transformer; Its iron core magnetic resistance when work is little; Utilize the Wound iron-core transformer of this iron core manufacturing can reduce the no-load loss of Wound iron-core transformer greatly; Reduce noise, thereby improve the operating efficiency of transformer, reduce pollution environment.
For a better understanding of the present invention, below in conjunction with accompanying drawing and embodiment the present invention is further described.
Volume provided by the present invention is unshakable in one's determination, and its Mosaic face unshakable in one's determination is " W " shape Mosaic face, with respect to the straight line Mosaic face, adopts " W " shape Mosaic face that its splicing area is increased greatly.Because the size of iron-loss per unit weight is relevant with the magnetic resistance size, magnetic resistance is big more, and iron-loss per unit weight is big more.Otherwise magnetic resistance is more little, and iron-loss per unit weight is more little.When the splicing area increases, reduce at magnetic resistance on the Mosaic face, thereby specific loss unshakable in one's determination is reduced, the no-load loss of Wound iron-core transformer reduces, and the efficient of transformer improves.
Fig. 4 is the structural representation of a practical implementation example unshakable in one's determination provided by the present invention, and its splicing seams is " W " shape seam, and angle is α." W " shape seam can effectively increase substantially the splicing area between two Mosaic faces, thereby has reduced magnetic resistance, has reduced the no-load loss of transformer.
Fig. 5 is the structural representation of a practical implementation example of Mosaic face unshakable in one's determination provided by the present invention; The size of the angle of its splicing seams can be any angle in 0 ° of-180 ° of angle, and by convention, angle is more little; The contact area of splicing seams is big more; Magnetic resistance is more little, but angle is more little, and difficulty of processing and cost are high more.Through overtesting, when angle was 90 °, splicing area unshakable in one's determination was bigger, and manufacture craft is fairly simple and can reach the object of the invention, helps making the higher iron core of cost performance.
Fig. 6 and Fig. 7 are the structural representation of four practical implementation examples of Mosaic face unshakable in one's determination provided by the present invention, and its splicing seams is " W " shape seam or approximate " W " shape seam, all in the protection range of patent of the present invention.
Fig. 8 and Fig. 9 are the structural representation of a practical implementation example of three-phase three-limb transformer core provided by the present invention; In the three-phase three-limb transformer, adopt " W " shape seam can further increase the splicing area; Reduce magnetic resistance; Reduce no-load loss and noise, improve the operating efficiency of transformer and reduced the influence of transformer noise environment.
Claims (4)
1. an iron core is used for Wound iron-core transformer, and this iron core rolls with core material and forms, and has splicing seams along its thickness bearing of trend, it is characterized in that, said splicing seams is " W " shape seam.
2. iron core according to claim 1 is characterized in that, said splicing seams is in " W " shape seam, and angle is 20 °-160 °.
3. according to any described iron core of claim 1 to 2, it is characterized in that said " W " shape seam is positioned at 360 ° of arbitrary directions of circumference of transformer core stem.
4. according to any described iron core of claim 1 to 3, it is characterized in that said core material is a silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105285930A CN102456473A (en) | 2010-11-02 | 2010-11-02 | Detachable silicon-steel sheet coiled iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105285930A CN102456473A (en) | 2010-11-02 | 2010-11-02 | Detachable silicon-steel sheet coiled iron core |
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| Publication Number | Publication Date |
|---|---|
| CN102456473A true CN102456473A (en) | 2012-05-16 |
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| CN2010105285930A Pending CN102456473A (en) | 2010-11-02 | 2010-11-02 | Detachable silicon-steel sheet coiled iron core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680887A (en) * | 2012-09-07 | 2014-03-26 | 苏州安泰变压器有限公司 | Novel three-phase three-dimensional wound core distribution transformer and assembly method thereof |
| CN103680886A (en) * | 2012-09-07 | 2014-03-26 | 苏州安泰变压器有限公司 | Novel three-phase wound core distribution transformer and assembly method thereof |
| CN103794339A (en) * | 2014-03-06 | 2014-05-14 | 无锡希恩电气有限公司 | CO electric reactor iron core |
-
2010
- 2010-11-02 CN CN2010105285930A patent/CN102456473A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680887A (en) * | 2012-09-07 | 2014-03-26 | 苏州安泰变压器有限公司 | Novel three-phase three-dimensional wound core distribution transformer and assembly method thereof |
| CN103680886A (en) * | 2012-09-07 | 2014-03-26 | 苏州安泰变压器有限公司 | Novel three-phase wound core distribution transformer and assembly method thereof |
| CN103680886B (en) * | 2012-09-07 | 2016-05-25 | 苏州安泰变压器有限公司 | A kind of three-phase is rolled up distribution transformer unshakable in one's determination and assembly method thereof |
| CN103680887B (en) * | 2012-09-07 | 2016-09-14 | 苏州安泰变压器有限公司 | A kind of three-phase stereo wound core distribution transformer and assembly method thereof |
| CN103794339A (en) * | 2014-03-06 | 2014-05-14 | 无锡希恩电气有限公司 | CO electric reactor iron core |
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| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Liming Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |