Patent ID: 8581468

Claim:
A stator for an electric rotating machine, the stator comprising: an annular stator core comprised of a plurality of stator core segments that are arranged in a circumferential direction of the stator core to adjoin one another in the circumferential direction; an outer ring that is fitted on radially outer surfaces of the stator core segments so as to fasten the stator core segments together; and a stator coil mounted on the stator core, wherein each of the stator core segments is formed of a plurality of stator core sheets that are laminated in an axial direction of the stator core, each of the stator core sheets has a pair of major surfaces perpendicular to the axial direction of the stator core and a reinforcement portion that includes a recess formed in one of the major surfaces of the stator core sheet and a protrusion formed on the other major surface, the stator core sheets are laminated so that for each adjoining pair of the stator core sheets, the protrusion of one of the stator core sheets is fitted in the recess of the other stator core sheet, and a clearance is provided between each facing pair of side surfaces of the recesses and protrusions of the stator core sheets.