Title:
AMORPHOUS TRANSFORMER FOR ELECTRIC POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2007/099931
Kind Code:
A1
Abstract:
This invention provides an amorphous transformer for electric power supply,
using a magnetic core formed of an amorphous alloy material, which, as compared
with the conventional amorphous alloy material, has a lower annealing temperature
and a higher level of magnetic properties. The amorphous transformer for electric
power supply is provided with a magnetic core of a thin band of an amorphous alloy
and a winding wire. The iron core has been annealed under such conditions that
the iron core center part temperature during annealing after iron core molding
is 300 to 340ºC and the holding time is not less than 0.5 hr. Further, for
the iron core, the magnetic field intensity during annealing after the iron core
molding is not less than 800 A/m.
Inventors:
FUKUI, Kazuyuki (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
福井 和元 (〒08 新潟県胎内市富岡４６番地１ 株式会社日立産機システム内 Niigata, 9592608, JP)
YAMASHITA, Koji (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
山下 晃司 (〒08 新潟県胎内市富岡４６番地１ 株式会社日立産機システム内 Niigata, 9592608, JP)
OGAWA, Yuichi (2-1, Shibaura 1-chome, Minato-k, Tokyo 14, 1058614, JP)
福井 和元 (〒08 新潟県胎内市富岡４６番地１ 株式会社日立産機システム内 Niigata, 9592608, JP)
YAMASHITA, Koji (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
山下 晃司 (〒08 新潟県胎内市富岡４６番地１ 株式会社日立産機システム内 Niigata, 9592608, JP)
OGAWA, Yuichi (2-1, Shibaura 1-chome, Minato-k, Tokyo 14, 1058614, JP)
Application Number:
JP2007/053581
Publication Date:
September 07, 2007
Filing Date:
February 27, 2007
Export Citation:
Assignee:
Hitachi Industrial Equipment Systems Co., Ltd. (3 Kanda Neribeicho, Chiyoda-ku Tokyo, 22, 1010022, JP)
株式会社日立産機システム (〒22 東京都千代田区神田練塀町３番地 Tokyo, 1010022, JP)
HITACHI METALS, LTD. (2-1 Shibaura 1-chome, Minato-ku Tokyo, 14, 1058614, JP)
日立金属株式会社 (〒14 東京都港区芝浦一丁目２番１号 Tokyo, 1058614, JP)
FUKUI, Kazuyuki (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
福井 和元 (〒08 新潟県胎内市富岡４６番地１ 株式会社日立産機システム内 Niigata, 9592608, JP)
YAMASHITA, Koji (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
株式会社日立産機システム (〒22 東京都千代田区神田練塀町３番地 Tokyo, 1010022, JP)
HITACHI METALS, LTD. (2-1 Shibaura 1-chome, Minato-ku Tokyo, 14, 1058614, JP)
日立金属株式会社 (〒14 東京都港区芝浦一丁目２番１号 Tokyo, 1058614, JP)
FUKUI, Kazuyuki (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
福井 和元 (〒08 新潟県胎内市富岡４６番地１ 株式会社日立産機システム内 Niigata, 9592608, JP)
YAMASHITA, Koji (46-1, Tomioka, Tainai-sh, Niigata 08, 9592608, JP)
International Classes:
H01F27/24; H01F1/153; H01F30/00; H01F27/24; H01F1/12; H01F30/00
Attorney, Agent or Firm:
ASAMURA, Kiyoshi et al. (Room 331, New Ohtemachi Bldg. 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, 1000004, JP)