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:
Feb. 21, 2018
Mitsubishi Electric Corporation, Tokyo, JP;
Emi Tsukamoto, Tokyo, JP;
Koji Yabe, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A first coil including a first metal, and a second coil including a second metal having a lower electrical resistivity than the first metal are disposed in a slot of a stator core. The slot includes a slot opening, a curved slot bottom portion connecting to a yoke, and first and second side portions disposed between the slot opening and the slot bottom portion. A first straight line connects borders between the slot bottom portion and either of the side portions. A first region is surrounded by the first straight line and the slot bottom portion. A second region is located between the slot opening and the first straight line in the radial direction. Areas Sand Sof the first and second regions, and total cross-sectional areas Aand Aof the first coil in the first and second regions satisfy (A/S)>(A/S).