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:
Oct. 30, 2018
Filed:
Oct. 22, 2013
Mitsubishi Electric Corporation, Tokyo, JP;
Tetsuya Iwata, Tokyo, JP;
Isao Sonoda, Tokyo, JP;
Satoru Akutsu, Tokyo, JP;
Masatsugu Nakano, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A rotor () for a rotary electric machine includes a rotor core () including a first core portion () having a plurality of core pieces () joined together through caulking portions () and a hollow first lightening portion (), and a second core portion () having a plurality of core pieces () joined together through caulking portions () and a press-fit portion (). A radial magnetic path width of a ring-shaped outer circumferential portion formed by laminating the first core portion () and the second core portion () changes along a circumferential direction of the rotor core (). Therefore, a weight and an inertia can be reduced.