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:
Dec. 26, 2017
Filed:
May. 28, 2012
Yukinari Fujisawa, Tokyo, JP;
Masataka Yahara, Tokyo, JP;
Hiroshi Nagase, Sagamihara, JP;
Fumio Tajima, Sagamihara, JP;
Yoshihiro Yamaguchi, Sagamihara, JP;
Yukinari Fujisawa, Tokyo, JP;
Masataka Yahara, Tokyo, JP;
Hiroshi Nagase, Sagamihara, JP;
Fumio Tajima, Sagamihara, JP;
Yoshihiro Yamaguchi, Sagamihara, JP;
AIDA ENGINEERING, LTD., Kanagawa, JP;
Abstract
Torque is improved in a composite torque rotating electric machine that uses permanent magnets having a low residual magnetic flux density such as ferrite magnets, and includes: a stator comprising armature windings arranged at a fixed interval at multiple positions on the inner periphery; a rotor which has a permanent magnet in a cylindrical core comprising laminated magnetic steel sheets and is arranged inside of the stator; and magnetic flux blocking units provided across the circumferential direction on the outer periphery of the rotor that block the closed loop magnetic flux generated around the stator windings. The magnetic flux blocking units can be multiple permanent magnets, with a non-magnetic body such as an air gap disposed between them. The distance between the permanent magnets and the non-magnetic part can be smaller than the interval at which the armature windings are arranged.