| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve rigidity of a stator against an external force in an axial direction.SOLUTION: By folding a yoke part 33 of each laminated layer steel plate 31 constituting a stator core 21, a reinforcement rib 43 rising in a stator axial direction is provided at a yoke 23 along a stator circumferential direction. Thereby, cross section secondary moment of the yoke 23 can be improved and warpage in the stator axial direction can be reduced by improving rigidity in the stator axial direction of the yoke 23 against an external force in the stator axial direction.</p> |
