| 摘要 |
PURPOSE: A blower fan assembly for refrigerator is provided to achieve improved quality of refrigerator by using an axial flow fan with reduced air flow noise. CONSTITUTION: A blower fan assembly comprises an axial flow fan constituted by a hub and seven blades arranged at the outer periphery of the hub, and a motor for rotating the axial flow fan. The ratio of the diameter(d) of the hub to the outer diameter(D) of the axial flow fan, is 35 to 40 percent, and each of blades has a sweeping angle(a) of 50 to 55 degrees. The radio of the width(b) of each blade to the outer diameter of the axial flow fan is 27 to 28 percent. The outer diameter of the axial flow fan is 100 ± 1mm, the diameter of the hub is 40 ± 1mm, the sweeping angle of the blade is 51.8 ± 1 degree, and the width of the blade is 27.8 ± 1mm.
|
