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:
Apr. 28, 2020
Filed:
Jul. 10, 2018
Coreless Motor Co., Ltd., Yamato-shi, Kanagawa, JP;
Manabu Shiraki, Yamato, JP;
Tsutomu Shiraki, Yamato, JP;
CORELESS MOTOR CO., LTD., Yamato-shi, JP;
Abstract
Present invention relates to a high performance rotating electrical machine which aims at downsizing, and challenges inevitable technical problems such as deterioration of efficiency η caused by copper loss and temperature rise inside the rotating electrical machine due to heat generation induced by eddy current generated in magnetic body. Such technical problem may be solved by: opposingly arranging a rotorwith a cup-type mount, the rotorbeing integrated with magnetsequipped on an outer cylindrical air-channel forming body and an inner cylindrical air-channel forming body which forms an air gap where one of end faces of a cylindrical coil is arranged and being coupled to a driveshaft which penetrates a lid-type mount, with respect to a statorwith a lid-type mount rotatably coupled with the driveshaft, to which one of end faces of a cylindrically-shaped energizeable coreless cylindrical coil cylindrically formed using a laminate structure consisting of a few overlapping conductive metal sheets; feeding or intaking cooling medium or cooling air to an air gap formed in an inner surface of the cylindrical coil; and directly cooling an inner surface and outer surface of the cylindrical coil arranged in the air gap.