AXIAL FLOW FAN OF REFRIGERATOR

摘要

PURPOSE: An axial flow fan of a refrigerator is provided to reduce a noise while maintaining the same efficiency by optimizing design values of design factors of the axial flow fan of the refrigerator. CONSTITUTION: In an axial fan used for circulating cool air in a refrigerator, a pitch angle(21) of a blade is not less than 30 deg. and not more than 40 deg.. A sweep angle(22) of the blade is not less than 51 deg. and not more than 61 deg.. An amount of camber(23) of the blade is not less than 3.5% and not more than 4.5%, wherein the number of the blades is 7.