Electric blower and vacuum cleaner using the same

摘要

An electric blower (1) includes a stator (19) and a rotor (17). An impeller (4) is fixedly installed on a rotation shaft (3) of the rotor. A casing (6) encloses the impeller (4). The casing is provided with a number of exhaust openings (7) through which a part of an air stream suctioned by the impeller (4) is discharged, wherein each of the exhaust openings (7) is a form of a hole.