| 摘要 |
At least some embodiment of the present invention relates to a centrifugal fan for a refrigerator including multiple impellers arranged around the center of the shaft in all directions; a ring-shaped shroud having a curvature portion having a preset radius or curvature and an inclined portion extended from the curvature portion at a preset inclination while connecting the impellers from the upper side of the impellers; a lower surface positioned on one side of the impellers opposite to the shroud. The present invention is capable of provide the centrifugal fan for the refrigerator characterized by a fact that a rate of an inner radius (r), which is shortest length of the impeller from the center of the shaft formed by the impellers, with respect to an outer radius (R), which is the longest length of the impeller from the center of the shaft, is 0.69 ± 0.01. |
