Vacuum cleaner dust collecting apparatus with dual parallel cyclone and conventional filtering

摘要

A dust-collecting apparatus for use in a vacuum cleaner includes a main body (100) having an inlet port (110) through which dust-carrying air is drawn, and first and second discharge ports (101 and 102) through which filtered air is discharged. A filter unit (130) is disposed between the inlet port (110) and the first discharge port (101) for filtering out dust from the air. A parallel cyclone unit (140), disposed between the inlet port (110) and the second discharge port (102), removes dust from the air by centrifugal force. The first discharge port (101) is larger in sectional area than the second discharge port (102), and so the filter unit (130) has higher dust removal rate than the cyclone unit (140) in the initial stage of operation. Accordingly, the dust-collecting apparatus can provide greater initial cleaning efficiency than a dust-collecting apparatus having only a cyclone unit.