Indoor unit of air conditioner

Abstract

An indoor unit of a ceiling-embedded type or ceiling-suspended type air conditioner with an improved flexibility of the design of a bottom panel is provided. An indoor unit includes a bottom panel, an inlet disposed to the bottom panel, a movable panel that closes the inlet during non-operation, and a driving unit. The driving unit moves or rotates the movable panel. During operation, the movable panel moves or rotates and recedes above a bottom surface of the bottom panel.

1 . An indoor unit of a ceiling-embedded air conditioner or ceiling-suspended air conditioner comprising:
 a bottom panel constituting a bottom surface;   an inlet disposed on the bottom panel;   a movable panel configured to close the inlet during non-operation; and   a driving unit configured to move or rotate the movable panel,   wherein   during operation, the movable panel moves or rotates and recedes above the bottom surface of the bottom panel.   
     
     
         2 . The indoor unit of an air conditioner according to  claim 1 , further comprising
 a fan configured to suck air in through the inlet; and   a filter configured to remove dust sucked in by the inlet, wherein   the filter is connected to the movable panel and moves therewith to a predetermined mounting position.   
     
     
         3 . The indoor unit of an air conditioner according to  claim 1 ,
 wherein
 the movable panel is formed by a plurality of smaller movable panels, and 
 during operation, the plurality of smaller movable panels move and are arranged in a pyramid shape above the bottom surface of the bottom panel. 
   
     
     
         4 . The indoor unit of an air conditioner according to  claim 1 , wherein
 the movable panel is formed by at least a first movable panel and a second movable panel, and   during operation, the first movable panel and the second movable panel rotate and open upwardly above the bottom surface of the bottom panel.   
     
     
         5 . The indoor unit of an air conditioner according to  claim 1 , further comprising:
 an outlet disposed in the bottom panel; and   a second movable panel configured to close the outlet during non-operation,   wherein   during operation the movable panel moves or rotates and recedes above the bottom surface of the bottom panel, and   the second movable panel moves or rotates away from the outlet.   
     
     
         6 . The indoor unit of an air conditioner according to  claim 5 , wherein
 during operation, the second movable panel moves in a parallel manner toward a center of the bottom panel.   
     
     
         7 . The indoor unit of an air conditioner according to  claim 1 , wherein
 the driving unit uses a motor as a driving source.   
     
     
         8 . The indoor unit of an air conditioner according to  claim 1 , wherein
 the bottom panel and the driving unit are provided as an assembly.