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. 29, 2022
Filed:
Mar. 11, 2020
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki, JP;
Masaru Kano, Ichikawa, JP;
Hideki Hisada, Kuwana, JP;
Masakatsu Matsubara, Mie, JP;
Yusuke Matsuoka, Higashiosaka, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
According to one embodiment, a rotor includes a rotor core including magnetic poles arranged in a circumferential direction, a cavity formed on an axis q and extending toward a central axis, and a flux barrier band formed in the magnetic pole between a pair of the cavities to cross an axis d and including a first bridge part facing one cavity, a second bridge part facing the other cavity, and a magnet embedding hole formed between the first and the second bridge parts, a first permanent magnet formed of a fixed magnetic force magnet and disposed in the magnet embedding hole to be adjacent to the first bridge part, and a second permanent magnet formed of a variable magnetic force magnet and disposed in the magnet embedding hole to be adjacent to the second bridge part.