Title:
IRON CORE OF TRANSFORMER, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/260448
Kind Code:
A1
Abstract:
The present invention relates to an iron core of a transformer having low no-load loss and no-load noise and a manufacturing method therefor, and the iron core of a transformer comprises: a pair of yokes, which are formed by stacking a plurality of electrical steel sheets and are parallel to each other; and a leg, which is formed by stacking a plurality of electrical steel sheets and connects the pair of yokes, wherein, in a coupling part in which the yokes and the leg are connected, the ends of the electrical steel sheets constituting the yokes and the ends of the electrical steel sheets constituting the leg have inclined surfaces corresponding to each other, the inclined surfaces are shape-fitted, one electrical steel sheet constituting the yokes is stacked, through step lapping, on another electrical steel sheet constituting the yokes, and one electrical steel sheet constituting the leg can be stacked, through step lapping, on another electrical steel sheet constituting the leg.
Inventors:
SHIM HO-KYUNG (KR)
Application Number:
PCT/KR2022/008124
Publication Date:
December 15, 2022
Filing Date:
June 09, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
H01F27/245; H01F27/33; H01F41/02
Foreign References:
| KR102109279B1 | 2020-05-11 | |||
| KR20130076930A | 2013-07-09 | |||
| JPH06151218A | 1994-05-31 | |||
| JP2008211002A | 2008-09-11 | |||
| KR100284516B1 | 2001-04-02 | |||
| KR101302830B1 | 2013-09-02 | |||
| KR102109279B1 | 2020-05-11 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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