| 摘要 |
PURPOSE: An axial fan for a refrigerator is provided to minimize the noise generated due to the harsh flow of air and increase the amount of sucked and discharged air by guiding the air to be smoothly sucked and discharged. CONSTITUTION: An axial fan for a refrigerator includes a hub(51) connected with a rotary shaft of a motor to be rotated with the rotary shaft, many blades(55) installed on the hub, wherein the number of the blades are three, the ratio of an inner diameter(ID) to an outer diameter(OD) is 0.21-0.25; and a maximum camber rate is 4.8-5.2% at a blade hub and 6.1-6.5% at a blade tip, the pitch angle of the blade is 43.8-44.2 degrees and 29.8-30.2 degrees at the blade tip, and the sweep angle(theta) of the blade is 0.0-37.0 degrees to the middle point of the blade hub and the blade tip, and 37.0-49.5 degrees from the middle point to the blade tip.
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