Patent ID: 7082776

Claim:
An apparatus for controlling cold air circulation in a refrigerator, comprising: a cold air supply means for supplying cold air, which has been generated by a heat exchanger, to a storage space by using a blower fan, the storage space having an upper portion, a middle portion, and a lower portion; a cold air supply flow passage with a plurality of cold air discharge ports corresponding to respective portions of the storage space so that the cold air supplied from the cold air supply means is delivered to the storage space; a cold air return flow passage for returning the cold air, which has circulated in the storage space, to the heat exchanger by means of suction force of the blower fan; a cold air circulation means comprising a circulation fan positioned at the lower portion of the storage space for causing the cold air, which has been supplied from the cold air supply flow passage to the storage space, to flow from the lower portion of the storage space only toward the lower or middle portion thereof; and a microcomputer for controlling the cold air supply means and the cold air circulation means based on information on temperature of the storage space so as to circulate the cold air in the refrigerator.