| 摘要 |
PROBLEM TO BE SOLVED: To reduce weight of a centrifugal blower without changing capacity of a case for accommodating cooling blades by installing cooling blades for cooling a motor of the centrifugal blower along an inner periphery of a boss part. SOLUTION: Cooling blades 50 are arranged along an inner periphery of a boss part 38 of a fan 22. A plurality of the cooling blades 50 are spaced from each other at constant angles on an inner curve of the boss part 38 opposite to blowing blades 42 along a perimeter direction. COPYRIGHT: (C)2004,JPO
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