| 摘要 |
A dust collecting unit is provided to secure the moving path of the impurities and preclude the impurities from being moved backwardly by forming the air current interference ribs with height difference. A dust collecting unit comprises an upper cover(110); a dust collecting body(120) whose upper part is sealed by the upper cover, and formed with a suction guide to suck the air; a filter member(140) containing a filter part(150) combined with the upper cover to filter the impurities in the air and plural air current interference ribs(172) preventing the impurities filtered by the filter from being splashed; and a lower cover(130) sealing the lower side of the dust collecting body. The air current interference rib formed at the position opposed to the suction guide is at least one time formed with height difference. The current interference rib with the height difference is longitudinally longer than the other current interference ribs. The filter member contains a combining rib formed with plural combining parts to be combined with the upper cover.
|
