| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress drop of air tightness around a diffuser, and to reduce noise.SOLUTION: An electric blower includes: an electric motor; a diffuser 42; a fan casing 43; and a ring-shaped member 48. In the ring-shaped member, one surface is fixed to the diffuser and the other surface comes into contact with an inner surface of the fan casing. The inner surface of the fan casing comes into contact with the other surface of the ring-shaped member in the vicinity of an outer periphery, and it has a shape in which, as it goes from the outer peripheral side to the inner peripheral side, it separates from the other surface of the ring-shaped member. A separation part 51 in which the inner surface of the fan casing and the other surface of the ring-shaped member are separated is at least provided corresponding to an inlet part 47a of an air flow passage 47 so as to cover the inlet part 47a of the air flow passage 47 provided in the diffuser.</p> |
