Fe-based amorphous transformer magnetic core, production method therefor, and transformer

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United States of America Patent

PATENT NO 9881735
SERIAL NO

14911798

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Abstract

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The present invention provides an Fe-based amorphous transformer magnetic core formed by stacking Fe-based amorphous alloy thin strips and satisfying the following (1) to (3) in a direct current B-H curve measured by applying a magnetic field of 80 A/m to the magnetic core:

description='In-line Formulae' end='lead'B80≧1.1 T  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.5 T≦Br≦0.7 T  (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'B80−Br≧0.6 T  (3)description='In-line Formulae' end='tail'

wherein B80 represents a magnetic flux density (T) obtained when magnetization is performed in the magnetic field of 80 A/m, and Br represents a residual magnetic flux density (T) obtained when a magnetic field is changed to 0 A/m after magnetization is performed in a magnetic field of 80 A/m.

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PROTERIAL LTD6-36 TOYOSU 5-CHOME KOTO-KU TOKYO 1350061

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Azuma, Daichi Yasugi, JP 19 59
Nagata, Yuji Osaka, JP 22 411
Takahashi, Kengo Yasugi, JP 21 138

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