Abstract: A refrigerator comprises: a storage compartment, at least divided into a refrigerating compartment and a freezing compartment a first evaporator, arranged at a cooling compartment connected to the storage compartments through supply air ducts; a second evaporator, arranged inside the freezing compartment a switching valve, used to switch the flow of a refrigerant to a refrigerant channel connected to the second evaporator; a fan, used to enable cooled air in the first evaporator to flow from the cooling compartment to the storage compartments; a first air duct damper, inserted in the supply air duct connected to the refrigerating compartment and a second air duct damper, inserted in the supply air duct connected to the freezing compartment.

Abstract: The present invention provides a refrigerator which shortens the time of passing through a maximum ice crystal generation zone by efficiently blowing cold air to an object to be frozen. With respect to the refrigerator according to the present invention, the upper portion of the upper freezing compartment is provided with: a first supply air duct for supplying cold air during normal cooling operation; and a second supply air duct for supplying cold air during rapid cooling operation. During rapid cooling operation, the blower is operated, and the cold air supplied from the supply air duct is supplied to the upper freezing compartment via the second supply air duct and the air outlet.

Abstract: A refrigerator, provided with: a storage compartment, at least divided into a refrigerating compartment (3) and a freezing compartment (4); a first evaporator (22), provided in a cooling chamber (8) connected to the storage compartment (3, 4) by means of a supply duct (9, 10); a second evaporator (23) provided inside of the freezing compartment (4); a switch valve (25), used for switching a refrigerant to flow or not flow to a refrigerant passage connected to the second evaporator (23); a fan (13), used for flowing air cooled by the first evaporator (22) from the cooling chamber (8) to the storage compartment (3, 4); a first duct shutter (11), inserted in the supply duct (9) connected to the refrigerating compartment (3); and a second duct shutter (12), inserted in the supply duct (9) connected to the freezing compartment (4). The refrigerator may prevent the storage compartment (3, 4) from becoming dry, thereby reducing defrost instances and power consumption.