Impeller for electric blower

Abstract

Disclosed herein is an impeller for an electric blower including: an upper plate; a lower plate; and a blade positioned between the upper plate and the lower plate, wherein the lower plate includes a burring part formed at an inner diameter portion thereof to which a shaft is insertedly coupled. In addition, disclosed herein is an impeller for an electric blower including: an upper plate; a lower plate; and a blade positioned between the upper plate and the lower plate, wherein the lower plate includes a burring part formed at an inner diameter portion thereof to which a shaft is insertedly coupled and a washer part extended in a direction perpendicular to the burring part.

What is claimed is: 
     
         1 . An impeller for an electric blower comprising:
 an upper plate;   a lower plate; and   a blade positioned between the upper plate and the lower plate,   wherein the lower plate includes a burring part formed at an inner diameter portion thereof to which a shaft is insertedly coupled.   
     
     
         2 . The impeller as set forth in  claim 1 , wherein the burring part is protruded so that the inner diameter portion of the lower plate into which the shaft is inserted stands up vertically toward the upper plate. 
     
     
         3 . The impeller as set forth in  claim 1 , wherein the shaft is insertedly coupled to the burring part of the lower plate, and the nut is screw-coupled to an upper end portion of the shaft so as to be positioned at an upper end portion of the burring part. 
     
     
         4 . The impeller as set forth in  claim 1 , further comprising auxiliary members positioned at an inner diameter portion of the impeller to which the shaft is coupled. 
     
     
         5 . The impeller as set forth in  claim 4 , wherein the auxiliary members are coupled to both surfaces of the lower plate, having the lower plate therebetween, and an upper surface of the auxiliary member positioned on an upper surface of the lower plate is fixed by the nut. 
     
     
         6 . An impeller for an electric blower comprising:
 an upper plate;   a lower plate; and   a blade positioned between the upper plate and the lower plate,   wherein the lower plate includes a burring part formed at an inner diameter portion thereof to which a shaft is insertedly coupled and a washer part extended in a direction perpendicular to the burring part.   
     
     
         7 . The impeller as set forth in  claim 6 , wherein the burring part is protruded so that the inner diameter portion of the lower plate into which the shaft is inserted stands up vertically toward the upper plate, and the washer part is extended in the direction perpendicular to the burring part so as to contact the lower plate. 
     
     
         8 . The impeller as set forth in  claim 6 , wherein the shaft is insertedly coupled to the burring part of the lower plate, and the nut is screw-coupled to an upper end portion of the shaft so as to be positioned at an upper end portion of the burring part. 
     
     
         9 . The impeller as set forth in  claim 6 , further comprising auxiliary members positioned at an inner diameter portion of the impeller to which the shaft is coupled. 
     
     
         10 . The impeller as set forth in  claim 9 , wherein the auxiliary member is coupled to one surface of the lower plate facing the washer part.