Electric blower and an electric vacuum cleaner having the same

PROBLEM TO BE SOLVED: To solve such problems that a welding part 17a causes air resistance and drop of blasting efficiency since the same projects from a front surface shroud 12 in a welding method of a projection part and that a residual of welding causes turbulence of air and drop of blasting efficiency since the same sticks out from the welding part in an ultrasonic welding method. SOLUTION: A rear surface shroud 13, an inducer 15, and a blade 16 are formed out of resin as one unit. A plurality of projection parts 17 disposed at an upper end part of the blade 16 are inserted in a rectangular hole 18 having a step 19 of a front surface shroud 12. The projection part 17 is melted by heat and is fixed to prevent the projection part 17 from projecting from a surface of the front surface shroud 12. COPYRIGHT: (C)2011,JPO&INPIT