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. 09, 2021
Filed:
Feb. 16, 2017
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Yuji Takizawa, Tokyo, JP;
Yu Hirotani, Tokyo, JP;
Masafumi Okazaki, Tokyo, JP;
Satoru Akutsu, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/12 (2006.01); H02P 21/22 (2016.01); H02P 25/098 (2016.01); H02K 1/22 (2006.01); H02K 3/47 (2006.01);
U.S. Cl.
CPC ...
H02P 21/22 (2016.02); H02K 1/223 (2013.01); H02K 3/47 (2013.01); H02P 25/098 (2016.02);
Abstract
Provided is a rotary electrical machine, which is reduced in size of a motor through use of reluctance torque being a feature of an IPM motor, and in which, in driving in times other than a rated time, a current phase angle is shifted from an angle at which a total torque is maximized so that an increase in torque ripple is suppressed even when the current phase angle changes, to thereby provide characteristics of small size, high output, and low torque ripple.