| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the tightening force of a stator core drops due to torsion generated at a through bolt caused by torque while tightening the stator core. SOLUTION: In this dynamo-electric machine, a plurality of through bolts 25 are penetrated at prescribed positions of the stator core 21 where a plurality of insulated flat rolled magnetic steel sheets and strip are laminated, and the stator core 21 is tightened with the through bolts 25. The cross-section shape of the through bolt 25 and a hole 24 in the stator core 21 through which the through bolt 26 passes is formed so as to be capable of inhibiting the rotation of the through bolt 25. |
