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:
Sep. 15, 2020
Filed:
Apr. 08, 2019
Toshiba Industrial Products and Systems Corporation, Kawasaki-shi, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;
Masaaki Matsumoto, Mie, JP;
Takashi Araki, Mie, JP;
Makoto Matsushita, Fuchu, JP;
Katsutoku Takeuchi, Kokubunji, JP;
Toshio Hasebe, Hachioji, JP;
Toshiba Industrial Products and Systems Corporation, Kawasaki-shi, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki-shi, JP;
Abstract
A synchronous reluctance type rotary electric machine of an embodiment includes a shaft and a rotor core. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. Then, when a center in a circumferential direction of one pole is a pole center, a hollow part closest to the shaft among the plurality of hollow parts is a first hollow part, a hollow part positioned next to the first hollow part is a second hollow part, and a hollow part positioned on a side opposite to the first hollow part with respect to the second hollow part is a third hollow part, a width Wbetween the first hollow part and the second hollow part on the pole center and a width Wbetween the second hollow part and the third hollow part on the pole center are set to satisfy W≤W