| 摘要 |
PURPOSE: A micro fan is provided to maximize flow rate and wind pressure with reducing a noise and vibration by improving an angle of inclination, thereby improving the cooling efficiency and to reduce the electricity necessary for driving the fan. CONSTITUTION: A micro fan includes a hub(10) rotatably installed in a motor, a blade(21) attached to the outer peripheral surface of the hub and having a large angle of inclination to increase flow rate, and a blade(22) attached to the outer peripheral surface of the hub and having a small angle of inclination to increase wind pressure of air guided into the inside, wherein the blades are arranged by turns and the number of blades(20) becomes an even number.
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