CONSTANT NOISE AIR BLOWER

摘要

The air blower is designed to optimize the set value of the air blower for supplying cooling air to the cooling compartment of a refrigerator for purpose of heat exchange with reduced noise and enhanced performance. The air blower includes a propeller fan rotated with a power transmitted from a driver, and a bell mouth provided at the circumference of the propeller and having design factors applied to the design factors of the propeller at a predetermined ratio. The ratio of the inner diameter to the outer diameter of the bell mouth is 1.15-/+0.02.