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:
Jan. 09, 2018
Filed:
Mar. 19, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Naoki Ohashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A cooling structure for cooling a stator core of a rotating electrical machine includes: a stator core () arranged along an outer periphery of a rotor fixed to a rotary shaft (AX) of a rotating electrical machine; a stator frame () extending along an outer peripheral surface of the stator core (), the stator frame being configured to fix and support the stator core from the outer peripheral surface side thereof; and a motor case () having small-diameter end portions on both sides in an axial direction of the rotary shaft (AX), the small-diameter end portions being welded with airtightness onto an outer peripheral surface of the stator frame so that the motor case forms a space, which is the coolant flow path (CC), together with the outer peripheral surface of the stator frame.