Turbo fan and blade thereof

摘要

A turbo fan is provided. The turbo fan includes a plurality of blades (4), a shroud (2), and a circular hub (3). The shroud (2) is provided at ends of the blades (4) to guide a flow of suctioned air. The circular hub (3) guides a discharging of the suctioned air. The blade (4) includes a leading edge (5) formed wider than a trailing edge (7) thereof.