| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric blower which can reduce fan noise generated from a rotating fan without deteriorating performance, and is low in noise.SOLUTION: An electric blower is composed of a fan having a plurality of pieces of fan blades attached to an output shaft extending from a rotor, and an air guide having a plurality of pieces of guide blades which are arranged between the fan and a rectifier electric motor so as to oppose the external periphery of the fan. Blade pieces of the fan blades, the guide blades and return blades are made to be a common multiple of different prime numbers. |
