Title:
IRON CORE FOR STATIONARY INDUCTION APPARATUS, AND STATIONARY INDUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/121691
Kind Code:
A1
Abstract:
The iron core (1, 11, 31) for a stationary induction apparatus according to the present embodiment is formed by laminating a plurality of electromagnetic steel plates (5, 16, 33), wherein: the electromagnetic steel plates are laminated so that joint parts (6, 17, 18, 32), at which the end parts of the electromagnetic steel plates abut one another, are disposed in a staggered manner; and the electromagnetic steel plates are provided with a magnetic domain fine differentiation processed part (7, 19, 34), which is located on the portion, of the surface of the end parts of each of the electromagnetic steel plates, lapped with the joint part of another electromagnetic steel plate, and which has been subjected to warping-derived magnetic domain fine differentiation.
Inventors:
ENOKIZONO MASATO (JP)
MASUDA TSUYOSHI (JP)
SHIMOMURA EIJI (JP)
MASUDA TSUYOSHI (JP)
SHIMOMURA EIJI (JP)
Application Number:
PCT/JP2019/043459
Publication Date:
June 18, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
TOSHIBA IND PRODUCTS & SYSTEMS CORP (JP)
ENOKIZONO MASATO (JP)
ENOKIZONO MASATO (JP)
International Classes:
H01F41/02; H01F27/245
Domestic Patent References:
| WO2018131613A1 | 2018-07-19 |
Foreign References:
| JPH0362007B2 | 1991-09-24 | |||
| JP2015106631A | 2015-06-08 | |||
| JPH0138898Y2 | 1989-11-21 | |||
| JP2015106631A | 2015-06-08 |
Other References:
See also references of EP 3896706A4
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
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