Operational structure of impeller assembly for air cooler

Abstract

An operational structure of an impeller assembly for an air cooler is provided. The operational structure of an impeller assembly for an air cooler includes: a casing having a water collector provided on the bottom thereof; a moisture absorption pad provided in the casing, for absorbing water; an air blowing fan which is disposed in front of the moisture absorption pad and rotates; a water spreader provided in the upper portion of the casing, spraying water to the moisture absorption pad; a connection tube connecting the water spreader and the water collector with each other; and an impeller assembly supplying water contained in the water collector to the water spreader through the connection tube. The impeller assembly includes: impeller wings rotatably provided in the water collector; a rotational shaft whose one end is combined with the impeller wings to rotate the impeller wings and other end is disposed in the casing; a driven gear combined with the other end of the rotational shaft; and a driving gear integrally installed on the driving shaft of a driving motor rotating the air blowing fan, and mutually combined with the driven gear to rotate the driven gear. Accordingly, an air cooler adopting the operational structure of the impeller assembly can rotate impeller wings consistently irrespective of the temperature change in the atmosphere, which is advantageous for high-speed rotation of impeller wings, and which thus remarkably suppress its durability from lowering due to wear of the parts.

What is claimed is:  
     
         1 . An operational structure of an impeller assembly for an air cooler comprising: a casing having a water collector provided on the bottom thereof; a moisture absorption pad provided in the casing, for absorbing water; an air blowing fan which is disposed in front of the moisture absorption pad and rotates; a water spreader provided in the upper portion of the casing, spraying water to the moisture absorption pad; a connection tube connecting the water spreader and the water collector with each other; and an impeller assembly supplying water contained in the water collector to the water spreader through the connection tube, 
 wherein said impeller assembly comprises: 
 impeller wings rotatably provided in the water collector;  
 a rotational shaft whose one end is combined with the impeller wings to rotate the impeller wings and other end is disposed in the casing;  
 a driven gear combined with the other end of the rotational shaft; and  
 a driving gear integrally installed on the driving shaft of a driving motor rotating the air blowing fan, and mutually combined with the driven gear to rotate the driven gear.  
   
     
     
         2 . The operational structure of an impeller assembly for an air cooler as claimed in  claim 1 , wherein the driving gear on the driving shaft and the driven gear on the rotational shaft are made of a pair of bevel gears combined with each other so as to rotate mutually and whose rotational direction varies.  
     
     
         3 . The operational structure of an impeller assembly for an air cooler as claimed in  claim 1 , wherein a worm is provided in one side of the driving gear on the driving shaft and the driven gear on the rotational shaft, and a worm gear is provided in the other side thereof.