CENTRIFUGAL BLOWER FOR VACUUM CLEANER

摘要

PURPOSE: A centrifugal blower for a vacuum cleaner is provided to reduce the flow resistance of air and to improve blowing efficiency by forming an inclined air passage. CONSTITUTION: A suction port(52a) is formed at the upper center of a cone-shaped impeller cover(52). An impeller(54) is rotatably installed at the inside of the impeller cover. A blade(54c) inclines to a rotary shaft, and the impeller sucks air obliquely and reduces the flow resistance of air. A motor(60) is connected to the impeller by the rotary shaft, and rotates the impeller. A diffuser(56) is installed at the outer circumference of the impeller, and supplies air passed through the impeller. A guide vane(58) is located at the lower part of the diffuser, and guides the air into the motor.