Elektrisches Gebläse und damit ausgerüsteter Staubsauger

摘要

An electric blower (1) includes an electric motor (8) including a stator (19) and a rotor (17). The impeller (4) is rotated by the electric motor (8). An air guide (5) having a plurality of guide blades (24) is disposed around the impeller (4), and a casing (6) encloses the impeller (4) and the air guide (5). The casing (6) is provided with a number of exhaust openings (7) through which a part of an air stream suctioned by the impeller (4) is discharged, and a circumferential length of each of the exhaust openings (7) is substantially identical to a circumferential distance between outer peripheral ends of adjacent guide blades (24). Alternatively, the circumferential length of each of the exhaust openings (7) may be less or greater than the circumferential distance between outer peripheral ends of adjacent guide blades (24).