| 摘要 |
PROBLEM TO BE SOLVED: To increase cooling capacity in the stator while suppressing increase in processing cost.SOLUTION: Between a plurality of magnetic steel sheets 30A, the arrangement pitch of flow path openings 33A arranged along one side 30a and flow path openings 33B arranged along the other side 30b is mutually offset. These magnetic steel sheets 30A are laminated while differentiating the angle from each other. Consequently, in the magnetic steel sheets 30A, 30A located vertically, the bridge 35 of the other magnetic steel sheet 30A is located in the flow path opening 33 of one magnetic steel sheet 30A. In the cross-sectional view of a stator core 14, each flow path opening 33 is subdivided by the bridge 35, as if two cooling passages 20 are formed, respectively. |
