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Cyclone vacuum cleaner and cyclone separation device thereof

  • US 9,468,348 B2
  • Filed: 03/19/2014
  • Issued: 10/18/2016
  • Est. Priority Date: 03/19/2014
  • Status: Active Grant
First Claim
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1. A cyclone separation device of a cyclone vacuum cleaner, comprising:

  • a cyclone chamber, comprising;

    an air inlet, allowing an airflow to enter the cyclone chamber;

    an annular sidewall, forming an air receiving region therein communicating with the air inlet, and guiding the airflow to flow spirally in the air receiving region;

    a dust collecting region disposed at one end of the sidewall and communicated with the air receiving region;

    an air outlet disposed at other end opposite to the dust collecting region and along the same axis with the dust collecting region to discharge the airflow; and

    an airflow guiding member, located within the dust collecting region and disposed to a projection position of the air outlet, comprising;

    an airflow guiding chamber;

    at least one airflow entry opening, communicating with the dust collecting region and the airflow guiding chamber, and allowing the airflow in the dust collecting region to enter the airflow guiding chamber;

    an airflow discharge opening, communicating with the airflow guiding chamber, disposed on the axis of the cyclone chamber to face the air outlet;

    a dust limiting surface facing the dust collecting region;

    a dust outlet communicating with the dust collecting region;

    a support section connected to the cyclone chamber, and a connecting section connected to the support section and extended toward the air outlet, and the airflow entry opening is disposed at the connecting section;

    an airflow rebounding surface that encircles the airflow discharge opening and faces the air outlet and is an arched surface and is recessed toward the dust collecting region; and

    a choke slanting surface extended from the airflow rebounding surface toward the air receiving region;

    wherein the airflow rebounding surface and the airflow discharge opening defines an air discharging region therebetween, and the air discharging region allows the airflow discharged from the airflow discharge opening discharging from the airflow rebounding surface to the airflow discharge opening.

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