Air conditioner

Abstract

An air conditioner includes: a constituent part in which dusts taken into an indoor device ( 1 ) from the room air are accumulated; and a cleaning device ( 20 ) which sucks in the dusts from the constituent part. The cleaning device ( 20 ) includes: a fan ( 22 ) having a plurality of blades and rotating; a housing ( 21 ) containing the fan ( 22 ) and having an intake opening ( 21 a ) and an exhaust opening ( 21 c ); and an intake channel ( 25 ) having an intake opening facing the constituent part and connected to the intake opening ( 21 a ). An air current is introduced into the housing ( 21 ) from the intake opening ( 21 a ) along the rotation surface of the blades ( 23 ). The blades ( 23 ) have end brims ( 21 b ) of the upstream side of the air current introduced from the intake opening ( 21 a ).

1 . An air conditioner equipped with a cleaning apparatus with which dust contained in air taken inside an indoor unit and accumulated on a component of the indoor unit is sucked and removed from the component,
 the cleaning apparatus comprising:
 a fan foisted with a plurality of blades, and rotating; 
 a housing accommodating the fan, and formed with an air inflow port thereof and an air outflow port thereof; and 
 a suction passage formed with a suction port thereof facing the component, and connected to the air inflow port, 
   wherein   a stream of air is made to flow inside the housing along a rotation plane of the plurality of blades through the air inflow port, and   the plurality of blades are formed such that side edges thereof, on an upper stream side, of the stream of air flowing through the air inflow port extend in a radius direction of the fan.   
     
     
         2 . The air conditioner according to  claim 1 , wherein
 the fan is formed with a centrifugal fan.   
     
     
         3 . The air conditioner according to  claim 1 , wherein
 the side edges of the blades are substantially parallel to the rotation plane of the fan, or descend from an inner circumferential side thereof to an outer circumferential side thereof with an increased distance from the air inflow port as observed in an axial direction of the fan.   
     
     
         4 . The air conditioner according to  claim 1 , wherein
 the fan is formed with a boss around a rotation axis of the fan and in a vicinity of the air inflow port, and   the plurality of blades are so formed as to extend from a circumferential surface of the boss to an outer edge of the air inflow port.   
     
     
         5 . The air conditioner according to  claim 4 , wherein
 the plurality of blades are interconnected to one another, at side surfaces thereof on a side opposite to a side where the air inflow port is present, by an annular ring.   
     
     
         6 . The air conditioner according to  claim 1 , wherein
 the housing is provided with a disk on an axial line of the fan to thereby form the air inflow port in a ring-like shape, and   the plurality of blades are so formed as to extend from an inner edge of the air inflow port to an outer edge of the air inflow port.   
     
     
         7 . The air conditioner according to  claim 6 , wherein
 the plurality of blades are interconnected to one another, at side surfaces thereof on a side opposite to a side where the air inflow port is present, by an annular ring.   
     
     
         8 . The air conditioner according to any one of  claim 1 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.   
     
     
         9 . The air conditioner according to  claim 2 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.   
     
     
         10 . The air conditioner according to  claim 3 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.   
     
     
         11 . The air conditioner according to  claim 4 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.   
     
     
         12 . The air conditioner according to  claim 5 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.   
     
     
         13 . The air conditioner according to  claim 6 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.   
     
     
         14 . The air conditioner according to  claim 7 , wherein
 the component includes a filter that collects dust contained in the air taken inside the indoor unit.