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. 03, 2024
Filed:
Feb. 28, 2020
Mitsubishi Electric Corporation, Tokyo, JP;
Hiroki Aso, Tokyo, JP;
Ryogo Takahashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A motor includes a rotor having a shaft, a rotor core, and a permanent magnet, and a stator surrounding the rotor. The permanent magnet forms a magnet magnetic pole, a part of the rotor core forms a virtual magnetic pole. The motor includes first and second bearings support the shaft, and further includes first and second bearing support portions. Of the first and second bearings, the first bearing is located on the load side. A distance Dfrom the center axis to the inner circumferential surface of the first bearing support portion, a distance Dfrom the center axis to the inner circumferential surface of the second bearing support portion, a distance dfrom the center axis to the outer circumferential surface of the first bearing, and a distance dfrom the center axis to the outer circumferential surface of the second bearing satisfy D−d<D−d