| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dynamo-electric machine capable of suppressing stagnation of a refrigerant on the outer surface of a rotor. <P>SOLUTION: The dynamo-electric machine has a rotating shaft 58 rotatably mounted, a core fixed to the rotating shaft 58, a permanent magnet embedded in the core, and an end plate 29 mounted so as to face an axial end surface of the core. A first refrigerant path in which a refrigerant can flow is formed in the rotating shaft 58. A second refrigerant path communicating with the first refrigerant path is formed between the end plate 29 and the axial end surface of the core. Inside the second refrigerant path, there are formed partition walls 45 for partitioning the second refrigerant path in the circumferential direction and route walls 46 for leading the refrigerant, introduced into the second refrigerant path, up to an outer peripheral edge region of the axial end surface where the permanent magnet is placed. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
