Patent ID: 7540169
Filing Date: 2009-06-02
Classification: F25D

Abstract:
1. A cold air supply and control device for a refrigerator, the refrigerator including a heat exchange chamber equipped with a heat exchanger to generate cold air, a storage space that stores goods using the cold air from the heat exchange chamber, and a plurality of shelves installed in the storage space, the cold air supply and control device comprising: a duct main body comprising an inlet that allows the cold air generated in the heat exchange chamber to be introduced thereinto and an outlet that supplies the cold air introduced through the inlet to the storage space, the duct main body being pivotably installed on at least one of side surfaces of the storage space; an opening and closing piece fixed to the at least one of the side surfaces of the storage space so as to selectively open and close the outlet in response to rotation of the duct main body; an opening and closing device that rotates the duct main body in response to a weight of food put on a shelf of the plurality of shelves, adjacent to which the cold air supply and control device is positioned, in a direction in which the outlet is opened by the opening and closing piece; and an elastic device that rotates the duct main body in a direction in which the outlet is closed by the opening and closing piece.