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Cyclone dust collecting apparatus and vacuum cleaner having the same

  • US 20120117753A1
  • Filed: 05/31/2011
  • Published: 05/17/2012
  • Est. Priority Date: 11/16/2010
  • Status: Active Grant
First Claim
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1. A cyclone dust collecting apparatus for a vacuum cleaner comprising:

  • a first chamber;

    an entering passage disposed above the first chamber, the entering passage guiding outer air to form a downwardly whirling air current in the first chamber;

    a second chamber formed at a position higher than that of an outlet of the entering passage above the first chamber, the second chamber in which the outer air entering from the first chamber whirls;

    a contaminants-blocking member disposed at a center of the first chamber and spaced apart from a bottom surface of the first chamber to prevent contaminants and water separated in the first chamber from moving into the second chamber; and

    a grill disposed inside the second chamber to be in fluid communication with an air discharging port through which clean air is discharged,wherein the entering passage is formed in a helical pipe shape wound at least one turn along the first chamber, andwherein the outlet of the entering passage is formed at a position that is lower than that of an inlet of the entering passage and that is the same as or lower than that of the contaminants-blocking member.

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