The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2019
Filed:
Feb. 03, 2016
Applicant:
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/25 (2006.01); H01F 27/26 (2006.01); H01F 30/10 (2006.01); H01F 3/10 (2006.01); H01F 30/12 (2006.01);
U.S. Cl.
CPC ...
H01F 27/25 (2013.01); H01F 3/10 (2013.01); H01F 27/263 (2013.01); H01F 30/10 (2013.01); H01F 27/26 (2013.01); H01F 30/12 (2013.01); H01F 2003/106 (2013.01);
Abstract
A transformer of the invention includes a core which includes a main leg, a side leg, and a yoke, and a winding wire () which is wound around the main leg of the core, inside a tank () which is filled with an insulating medium, the main leg of the core includes a main wound core () having a square cross-section which is formed by winding the amorphous magnetic ribbon and a sub wound core () constituted by silicon steel plates which are stacked with curvatures provided at four sides thereof, and a cross-section of a part, where the winding wire () is disposed, in the main leg is approximately a circular shape.