Patent ID: 6715306
Filing Date: 2004-04-06
Classification: F24F,F25D

Abstract:
A concentration cooling apparatus of a refrigerator, comprising:housings respectively installed to at least one cold air guide path formed at the side wall of a chilling chamber in order to guide cold air to the side wall of the chilling chamber; a nozzle rotatably supported by the housings and jetting cold air intensively to a high-temperature load occurred region inside the chilling chamber when the high temperature load occurs at the certain region; a nozzle support member arranged with a certain distance from the outer circumference of the nozzle, connected to the nozzle through a connection rod extended from the both sides of the nozzle and supporting the nozzle rotatably; an infrared temperature sensor installed on the front of the nozzle, rotating with the nozzle and sensing the high-temperature load occurred region; a first driving unit for rotating the nozzle in the circumferential direction by rotating the nozzle support member; and a second driving unit for rotating the nozzle up and down by rotating the connection rod interlocked with the rotation of the nozzle and rotated according to the circumferential rotation direction of the nozzle.