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:
Mar. 23, 2021
Filed:
Oct. 29, 2015
Denso Corporation, Kariya, JP;
Soken, Inc., Nishio, JP;
National University Corporation Shizuoka University, Shizuoka, JP;
Koji Ito, Kariya, JP;
Masanori Yasuda, Nishio, JP;
Shinji Makita, Kariya, JP;
Jun Yamaoka, Kariya, JP;
Masao Tokunaga, Nishio, JP;
Etsuro Yoshino, Nishio, JP;
Junichi Asama, Hamamatsu, JP;
DENSO CORPORATION, Kariya, JP;
SOKEN, INC., Nisshin, JP;
National University Corporation Shizuoka University, Shizuoka, JP;
Abstract
In an electric motor, a magnetic bearing generates an electromagnetic force between multiple permanent magnets and a coil and rotatably supports an other side of a rotation shaft in an axis line direction. The rotation shaft is configured to be capable of being inclined with a rotation center line using a bearing side of the rotation shaft as a fulcrum. An electronic control device controls a current that flows to the coil such that an axis line of the rotation shaft approaches the rotation center line due to a supporting force which is the electromagnetic force between the multiple permanent magnets and the coil. Accordingly, the rotation shaft is rotatably supported to be freely rotatable by a magnetic bearing and the bearing.