Patent attributes
A cyclone separation device (102, 202) and a cyclone vacuum cleaner (100, 200) mounted with the device. A first cyclone separation unit in the cyclone separation device (102, 202) comprises a dust bucket (10) and a mesh filter (7) with air holes (7a). Airflow enters the first cyclone separation unit to undergo first gas-solid separation. The airflow after the separation enters a second cyclone separation unit through the air holes (7a) of the mesh filter (7). A filter in the second cyclone separation unit comprises a plurality of cyclone barrels (31). An upper end and a lower end of the cyclone barrel (31) are open. A first air inlet (31a) and a second air inlet (31b) are disposed on a side wall of the cyclone barrel (31). The airflow (41a, 41b) after the gas-solid separation enters the first air inlet (31a) and the second air inlet (31b) through a first airflow passage and a second airflow passage respectively, is mixed in the cyclone barrel (31), and then undergoes second gas-solid separation. The airflow after the gas-solid separation is discharged from an opening at the upper end of the cyclone barrel (31). In the cyclone separation device (102, 202), the direction of travel of the airflow and the cross-sectional area of the air inlet are changed, thereby improving a separation effect. The cyclone vacuum cleaner (100, 200) mounted with the cyclone separation device (102, 202) increases separation efficiency and improves an air purification effect.
