| 摘要 |
PURPOSE: A guide vane structure is provided, in which guide vane is arranged separately rather than being coupled to the fan blade, to thereby suppress noises caused during the driving of fan and improve air flow. CONSTITUTION: A fan(30) has a casing(32) in which a motor(34) is arranged and connected to a fan blade(38) through a connection shaft(36) connected to the center of the motor. A guide vane(40) is installed at the inner side surface of the casing of the fan, in such a manner that the guide vane independently controls angle of the vane from outside of the casing. Since the guide vane is spaced apart from the fan blade, it is possible to reduce noises when the fan blade coupled with the motor rotates.
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