| 摘要 |
A turbo fan and a blade thereof are provided to reduce noise in operating the turbo fan by stably flowing air and restricting separation of air flow, and to improve performance of the turbo fan by restricting vortex. A turbo fan includes a shroud(2), plural blades(4) formed in a lower part of the shroud to forcibly blow air and placed between a hub(3) and the blade, the hub formed in a lower part of the blade to guide discharge direction of air, and a motor placing part formed in a center of the hub and connected to a rotating shaft. An upper part(6) of the blade is rounded, and the blade is smoothly bent. Air is stably moved into a blowing surface(8) by smoothly rounding an inlet end of air. A leading edge(5) of the blade is rounded with the narrow width to stably move air through a second air passage. The upper part of the blade is connected successively and smoothly to the blowing surface to move air into the blowing surface. |
