| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator cooling structure capable of ensuring a large flow passage area by providing a cooling passageway between a stator core tightly fastened in the axial direction and a holding cylinder or a pressing member.SOLUTION: A stator cooling structure includes: cylindrical stator cores 30 to 32; holding cylinders 20 to 23 each of which has a cylindrical body with a bottom surface at one end in the axial direction, and into which the stator cores 30 to 32 are inserted so that the end surfaces of one sides of the stator cores 30 to 32 in the axial direction are in contact with the inner surfaces of the bottom surfaces; pressing members 10 to 13 being in contact with the end surfaces of the other sides of the stator cores 30 to 32 in the axial direction and fixed to a housing 1 along with the holding cylinders 20 to 23, for tightly fastening the stator cores 30 to 32 in the axial direction; and cooling passageways 40 to 44 formed between the holding cylinders 20, 22, and 23, or an inner peripheral surface of the pressing member 11, and the outer peripheral surfaces of the stator cores 30 to 32. |
