Abstract: A refrigerator having an improved fan which blows air towards a heat exchanger such as an evaporator. The refrigerator has a body having a refrigerating chamber, a freezing chamber, and a chilled air passage which communicates with the refrigerating and freezing chambers. An evaporator for generating a chilled air by heat-exchanging with an air is installed in the body. The evaporator has a spiral-shaped refrigerant pipe which is disposed in a longitudinal direction of the chilled air passage, and a plurality of heat exchange pins disposed around the spiral-shaped refrigerant pipe, for increasing a heat exchange area between the air and the spiral-shaped refrigerant pipe. A fan for blowing the air toward the evaporator and for circulating the chilled air into the refrigerating is installed in the chilled air passage. A motor is fixed to a wall of the body forming the chilled air passage.

Abstract: A refrigerator for improving a cooling efficiency. The refrigerator has a cabinet having a refrigerating chamber, a freezing chamber, and an evaporator chamber which is disposed at a rear portion of the freezing chamber, an evaporators which generates a chilled air and has a helical shape forming a conical space portion therein, a blower assembly coaxially disposed at a rear of the evaporator so as to blow an air towards the evaporator, and a heater installed in the conical space portion of the evaporator so as to remove a frost adhering to the evaporator. The refrigerator can effectively make a heat-exchange between the evaporator and the air so that the cooling efficiency is improved. Since the turbulent air flow is introduced into the freezing chamber, the freezing chamber can be uniformly cooled and since the heater is coaxially disposed in the evaporator, the heater can uniformly heat the evaporator, so the defrosting a frost from the evaporator is effectively carried out.