| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator cooling structure of a double shaft multilayer motor which can be improved in cooling performance and increased in output power. SOLUTION: The stator cooling structure of the multiple shaft multilayer motor is constituted so that an inner rotor 102 and an outer rotor 103 are concentrically arranged interposing a stator 101, and air gap parts of the rotor and the stator are composed of oil chambers, an oil drawing hole 207 penetrating the air gap part 206 of the inner rotor side and the air gap part 205 of the outer rotor side is formed to cool stator teeth 201, around which an coil is wound, from the inside and outside (the first invention). And also, it is constituted so that clearance is arranged between a stator core and coils, and a coolant is introduced into the clearance communicating with the outside from the inside of the stator (the second invention). COPYRIGHT: (C)2005,JPO&NCIPI
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