CYCLONE DUST-SEPARATING DEVICE OF VACUUM CLEANER Russian patent published in 2009 - IPC A47L9/20 A47L9/16 

FIELD: personal demand items.

SUBSTANCE: cyclone dust-separating device is intended for vacuum cleaner. Cyclone dust-separating device comprises cyclone unit with cyclone chamber for swirling of the first air sucked from outside for separation of dust or dirt from it, filtering chamber arranged downstream cyclone unit and hosting filtering unit that contains filter intended for filtration of dust or dirt, which was not separated by cyclone chamber from the first air, cleaning unit, which serves for removal of dust or dirt accumulated in filter, with application of the second air sucked from outside, dust-collecting unit for catching and accumulation of dust or dirt separated from the first air by cyclone chamber, and dust or dirt removed from filter by cleaning unit, and element for introduction of discharged dust, which is used for introduction of dust or dirt removed from filter into dust-catching unit with prevention of its repeated sticking to filter. In mode of filter cleaning, cleaning unit closes air duct, through which the first air sucked through suction nozzle of vacuum cleaner, moves through cyclone unit and filtering unit. Cleaning unit comprises component for cleaning of filter, used for removal of dust or dirt from filter, driving part for actuation of component for cleaning of filter by means of the second air, and component for air duct switchover with provision of possibility to actuate the driving part by the second air in mode of filter cleaning.

EFFECT: efficient cleaning of filter and prevention of repeated sticking of dust to it.

11 cl, 13 dwg