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    • 2. 发明专利
    • BRPI0815570A2
    • 2015-02-18
    • BRPI0815570
    • 2008-08-25
    • TOSHIBA KK TOSHIBA CORP
    • HASHIDATE YOSHIONAMBA SATOSHIMUKAI KAZUMA
    • H02K9/22H02K1/20
    • Provided is a cooled casing type electric motor, which is cooled by dipping the casing of a stator frame (2) in a coolant. A thermally conductive member layer (15) is formed in a clearance (13) between the back of a stator iron core (1), which is obtained by bringing an electromagnetic steel plate (11) into contact with the inner wall face of the stator frame (2) to fix the plate in the laminated state, and the inner wall face of the stator frame (2). The thermally conductive member layer (15) is made mainly of a graphite sheet, and may be mounted on either the back of the stator iron core (1) or the inner wall face of the stator frame (2). The clearance (13), which might otherwise exist between the back of the stator iron core (1) and the inner wall face of the stator frame (2) so that it would obstruct the radiation of the heat generated in the operation by the stator iron core (1) and transferred to the stator frame (2), thereby to drop the cooling performance of a stator winding (3), can be eliminated to provide the cooled casing type electric motor having an excellent cooling performance.