Patent ID: 6336244
Filing Date: 2002-01-08
Classification: A47L,F04D

Abstract:
An electric blower comprising:a centrifugal fan; a motor frame; a diffuser interposed between said centrifugal fan and said motor frame; a bracket; a motor drive section mounted in said bracket; said bracket being disposed downstream from said motor frame; a fan cover covering said centrifugal fan and said diffuser; said diffuser and said fan cover redirecting exhaust air discharged radially from said centrifugal fan to said motor drive section; a ventilation opening in said motor frame; said ventilation opening permitting exhaust air passing from said ventilation opening through said bracket to cool said motor drive section; an exhaust opening in said fan cover; and a portion of exhaust air discharged from said centrifugal fan is discharged from said exhaust opening.