Refrigerator

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.

1 . A refrigerator, comprising:
 a storing compartment for accommodating an object to be frozen;   a cooler for cooling air supplied to the storing compartment;   a cooling compartment for accommodating the cooler;   a supply air duct for flowing the air cooled by the cooler from the cooling compartment to the storing compartment;   a first supply air duct disposed near a top surface of the storing compartment, wherein the cold air supplied from the supply air duct to the storing compartment passes through the first supply air duct during normal cooling operation; and   a second supply air duct disposed near the top surface of the storing compartment and disposed separately from the first supply air duct, wherein the cold air supplied from the supply air duct and blown toward the object to be frozen passes through the second supply air duct during rapid cooling operation.   
     
     
         2 . The refrigerator according to  claim 1 , comprising a blower for rapid freezing, wherein the blower is used for blowing cold air to the second supply air duct during rapid cooling operation. 
     
     
         3 . The refrigerator according to  claim 2 , wherein the blower for rapid freezing is disposed at a rear end portion of the second supply air duct. 
     
     
         4 . The refrigerator according to  claim 2 , wherein the blower for rapid freezing blows the air from the cooling compartment to the second supply air duct, and circulates the air in the storing compartment via the first supply air duct. 
     
     
         5 . The refrigerator according to  claim 1 , wherein the first supply air duct and the second supply air duct are located at an upper portion of the storing compartment, and are separated by a partition wall extending in the vertical direction. 
     
     
         6 . The refrigerator according to  claim 1 , wherein an indoor blower is disposed inside the storing compartment for blowing cold air to the object to be frozen via the second supply air duct. 
     
     
         7 . The refrigerator according to  claim 1 , wherein an air door is disposed between the first supply air duct and the supply air duct, and the air door is in a closed state during rapid cooling operation to supply the air supplied from the supply air duct to the second supply air duct. 
     
     
         8 . The refrigerator according to  claim 1 , wherein the supply air duct extends toward the side of the first supply air duct close to the first supply air duct and the second supply air duct.