| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device of a motor excellent in assemblability, which prevents a power loss resulting from the viscosity resistance of a lubricant oil and heat generation caused by stirring, for efficient cooling.SOLUTION: Outer flanges 15 formed at the end of a rotor 5 are a plurality of protrusions which are arranged in the circumferential direction at the outer periphery thereof, and protruded outward in the radial direction. Inner flanges 17 formed at the end of a stator 6 are a plurality of protrusions which are arranged in the circumferential direction at the inner periphery thereof, and protruded inward in the radial direction. Outer recesses 18 into which the inner flanges 17 can be inserted and slid are formed between the adjacent outer flanges 15 on the outer periphery of the end of the rotor 5. Inner recesses 19 into which the outer flanges 15 can be inserted and slid are formed between the adjacent inner flanges 17 on the inner periphery of the end of the stator 6. |
