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:
Feb. 21, 2023
Filed:
Oct. 19, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
Kazuchika Tsuchida, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A rotor has magnetic poles and a stator has the same number of teeth. Each tooth has first and second side portions in first and second directions in a circumferential direction, and a tooth tip facing the rotor. First and second protruding portions protrude in the first and second directions from the first and second side portions on the tooth tip side. The tooth tip has a first end having a gap Gwith the rotor and a second end having a gap G(>G) with the rotor. A reference line passes through a rotation axis and perpendicular to a radial straight line passing through a middle position between both side portions. From the reference line, a distance Da border between the first protruding portion and the first side portion is longer than a distance Dto a border between the second protruding portion and the second side portion.