Patent ID: 7038349

Claim:
A stator for a dynamo-electric machine, the stator comprising: a cylindrical outer core; and an inner core that includes a plurality of inner core sheets stacked one after the other in an axial direction of the stator, wherein each inner core sheet includes: a plurality of iron core portions, each of which extends radially inward from the outer core to hold a corresponding coil of the dynamo-electric machine; and a plurality of bridges, each of which connects between radially inner ends of corresponding two of the plurality of iron core portions, wherein: each bridge of each inner core sheet includes a thin wall portion, which extends in a circumferential direction of the stator and has a smaller axial thickness in a direction parallel to the axial direction of the stator in comparison to the rest of the inner core sheet; and a circumferential angular extent of at least one of the thin wall portions of the plurality of bridges differs from that of at least another one of the thin wall portions of the plurality of bridges in each inner core sheet.