| 摘要 |
PURPOSE: A concentrated cooling air supply system for refrigerator is provided to achieve a uniform cooling effectiveness throughout the refrigerating compartment by concentrically supplying cooling air to the new load. CONSTITUTION: A system comprises a branch duct(14) branched from a refrigerating compartment cooling air supply path; a door duct mounted at a door(30) so as to allow the cooling air to flow into the door duct from the branch duct, and which has a plurality of cooling air outlet holes formed at the front surface of the door duct; a plurality of temperature sensing units mounted inside of the door; and a selection unit having a sliding plate for selectively opening/shutting cooling air outlet holes formed at the door duct, and a driving member for moving the sliding plate. The selection unit opens/shuts cooling air outlet holes in accordance with the sensed result of the temperature sensing unit. The sliding plate has a plurality of cooling air outlet holes, so that cooling air outlet holes of the door duct are opened by allowing cooling air outlet holes formed at the sliding plate to be communicated to cooling air outlet holes formed at the door duct.
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