Title:
IRON CORE FOR ELECTRIC POWER EQUIPMENT AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2010/140381
Kind Code:
A1
Abstract:
Disclosed is an iron core for electric power equipment which has a coil wound thereupon for use and is provided with: a plurality of vertical members configured from a first magnetic body and extending in the axial direction of the aforementioned coil; and a plurality of horizontal members configured from a second magnetic body, positioned so as to be magnetically coupled with each of the aforementioned vertical members, and extending in a direction other than the axial direction of the aforementioned coil. Further, the core loss of the second magnetic body is smaller than the core loss of the first magnetic body when the rotary magnetic field that is defined by the inclination angle (inc), which is the angle of the magnetic flux density vector having the greatest magnitude of the magnetic flux density variation in the first cycle relative to the magnetic easy axis of a magnetic body, and the axial ratio (α), which is a value obtained by dividing the average value of the magnitude of two magnetic flux density vectors that are perpendicular to the aforementioned magnetic flux density vector having the greatest magnitude by the magnitude of the aforementioned magnetic flux density vector having the greatest magnitude, and that has an axial ratio (α) that is greater than zero is generated within the first magnetic body and the second magnetic body.
Inventors:
FUJISAKI, Keisuke (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
藤崎敬介 (〒71 東京都千代田区丸の内二丁目６番１号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
藤崎敬介 (〒71 東京都千代田区丸の内二丁目６番１号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
Application Number:
JP2010/003739
Publication Date:
December 09, 2010
Filing Date:
June 04, 2010
Export Citation:
Assignee:
NIPPON STEEL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
FUJISAKI, Keisuke (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
FUJISAKI, Keisuke (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
International Classes:
H01F27/245; H01F27/24
Attorney, Agent or Firm:
SHIGA, Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)