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:
Oct. 28, 2014
Filed:
Oct. 19, 2010
Ryuichi Nishiura, Chiyoda-ku, JP;
Yasuo Fujiwara, Chiyoda-ku, JP;
Yoshinori Shimizu, Chiyoda-ku, JP;
Tetsuya Matsuda, Chiyoda-ku, JP;
Takeshi Imura, Chiyoda-ku, JP;
Kazuaki Aono, Chiyoda-ku, JP;
Hiroyuki Akita, Chiyoda-ku, JP;
Ryuichi Nishiura, Chiyoda-ku, JP;
Yasuo Fujiwara, Chiyoda-ku, JP;
Yoshinori Shimizu, Chiyoda-ku, JP;
Tetsuya Matsuda, Chiyoda-ku, JP;
Takeshi Imura, Chiyoda-ku, JP;
Kazuaki Aono, Chiyoda-ku, JP;
Hiroyuki Akita, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;
Abstract
A transformer includes a leg iron core including a plurality of magnetic sheets stacked in one direction (Z axis direction), and a coil wound around the leg iron core. A slit is formed in at least a magnetic sheet which faces an inner peripheral surface of the coil in a stacking direction of the plurality of magnetic sheets, of the plurality of magnetic sheets. Since eddy current is divided by the slit, eddy current density can be reduced. By reducing the eddy current density, loss density in an iron core can be reduced. By reducing the loss density in the iron core, loss in the transformer can be reduced.