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:
Jun. 30, 2015
Filed:
Jun. 17, 2010
Masatsugu Takemoto, Sapporo, JP;
Hiroyuki Mitani, Kobe, JP;
Hirofumi Hojo, Takasago, JP;
Koji Inoue, Kobe, JP;
Osamu Ozaki, Kobe, JP;
Masatsugu Takemoto, Sapporo, JP;
Hiroyuki Mitani, Kobe, JP;
Hirofumi Hojo, Takasago, JP;
Koji Inoue, Kobe, JP;
Osamu Ozaki, Kobe, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo-shi, JP;
KABUSHIKI KAISHA KOBE SEIKO SHO, Kobe-shi, JP;
Abstract
An axial motor includes a rotor arranged between a pair of stators with coils. In the rotor, a plurality of permanent magnets sandwiched between pairs of first magnetic materials and a plurality of second magnetic materials are alternately arranged in a rotation direction while gaps are provided therebetween. Since the permanent magnets are sandwiched by the first magnetic materials in the thus constructed axial motor, a field-weakening control can be performed. Since the second magnetic materials are provided, a reluctance torque can be generated. Further, since the gaps are provided, more magnetic fluxes generated from the permanent magnets can be caused to flow toward the coils. Therefore, the thus constructed axial motor can achieve a higher output, higher torque, higher efficiency, and miniaturization.