| 摘要 |
<p>A grille member (130) that can be used, for example, in a cyclone dust-collecting apparatus (100) and a vacuum cleaner comprises a body (103) around which a rotating current is formed, and a plurality of air passages (133) formed at the body (103) to guide the rotating current into the body (103). In an embodiment, the air passages (133) have a leading surface facing toward a flow direction of the rotating air current and a tail surface upstream from the leading surface relative to the rotating air current, such that at least one plane extending along the tail surface and a line along the flow direction of the rotating air current meet at an obtuse angle. In this way, stagnant vortices are not generated in the vicinity of the tail surfaces of the air passages, and dust and the like do not accumulate in the vicinity of the tail surfaces of the air passages when dirt is centrifugally separated from drawn-in air by the rotating current.</p> |
