ELECTRIC BLOWER AND VACUUM CLEANER USING IT

摘要

An electric blower comprising an electric motor (12) having a rotating shaft (14) and an impeller (20) fixed to the rotating shaft (14) for rotation, the impeller (20) comprising a rear shroud (35) fixed to the rotating shaft (14), a front shroud (36) which faces the rear shroud (35) and has an inlet hole (25) to take in air, a plurality of blades (23) disposed between the rear shroud (35) and the front shroud (36), and an inducer (24) which streamlines air flowing from the inlet hole (25) and has a three dimensional-shaped vane (27), the inducer (24) being formed separately from the blade (23) and disposed between the rear shroud (35) and the front shroud (36), whereby an electric blower simple in structure, least in clearance between parts, higher in strength, and less in air loss is realized and also a practicable vacuum cleaner high in sucking performance is realized by the utilization of the electric blower.