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. 05, 2023
Filed:
May. 29, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Keisuke Kato, Tokyo, JP;
Koji Masumoto, Tokyo, JP;
Yuki Tamura, Tokyo, JP;
Nobukazu Kosone, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A motor includes a stator unit formed by coupling plural stators to one another into an annular shape. Each of the stators has: an iron core having an arc-shaped core-back portion and a tooth portion protruding from the core-back portion, the iron core forming slot portions between the iron core and adjacent ones of the stators; insulating members disposed on both end portions, in the axial direction, of the iron core; insulating films disposed so as to be in contact with inner walls of the slot portions of the iron core; and a winding disposed in the slot portions and wound over the iron core with the insulating members and the insulating films interposed therebetween. In a portion of each of the insulating films that is in contact with the inner wall of the slot portion, at least a portion that is in contact with an outer circumferential surface of the tooth tip portion has a length in the axial direction longer than the length of the iron core in the axial direction. Each of the insulating members has position fixing portions that are engaged with the iron core to fix the position of the insulating member.