A surface cleaning apparatus has an air flow path from a dirty air inlet to a clean air outlet. The air flow path comprising an air inlet conduit which extends downstream from the dirty air inlet. The Surface cleaning apparatus has a first stage cyclone and a second stage cyclone downstream from the first stage cyclone, the second stage cyclone having a plurality of air inlets. The cyclone axis of rotation of the first stage cyclone extends through the air outlet of the second stage cyclone. the first stage cyclone, the second stage cyclone having a plurality of air inlets, an air outlet and a cyclone axis of rotation. A plane that is transverse to the axis of rotation of the second stage cyclone extends through the inlet conduit and the air outlet of the second stage cyclone.

A robot cleaner provided with a shutter to open or close an inlet of a dust box when the dust box is separated from a body of the robot cleaner. Another robot cleaner, which docks with an automatic exhaust station, is also disclosed, together with the automatic exhaust station. The latter robot cleaner includes a shutter to be automatically opened by air discharged from the automatic exhaust station in a docked state of the robot cleaner to exhaust dust from the dust box, in order to allow even heavy dust to be easily exhausted.

A cleaner that includes: a main body; a suction assembly; and a coupling hose, wherein the main body includes: an air suctioning device, a case, a driving motor that is coupled to a first surface of the case and that is configured to generate driving force, a traveling wheel that is coupled to the first surface of the case and that is configured to rotate based on driving force generated by the driving motor, a motor cover that is configured to cover the driving motor such that the driving motor is located in a space between the first surface of the case and the motor cover, a rotating shaft that is coupled to the driving motor and that is configured to transfer driving force generated by the driving motor to the traveling wheel, and a coupling unit that couples the rotating shaft to the traveling wheel is disclosed.

Provided are cleaning robot and robot system, the cleaning robot includes robot main body and cleaning box assembly, the robot main body is provided with debris inlet channel, the cleaning box assembly is detachably mounted at one side of robot main body, and includes debris storage box and liquid storage box detachably connected thereto, the debris inlet channel, the debris storage box, and the liquid storage box are sequentially arranged in advancing direction of robot main body, the debris storage box is provided with air inlet and debris collection cavity, the air inlet is butted with the debris inlet channel, the debris collection cavity communicates with the debris inlet channel via the air inlet, the liquid storage box is provided with debris discharge port, the debris discharge port pneumatically communicates with the debris collection cavity, and the debris discharge port discharges debris in it with vacuum negative pressure.

A cleaning device and a method therefor are provided. The cleaning device includes a vacuum cleaner including a dust collecting container and a docking station to which the dust collecting container is coupled. The docking station includes a suction device configured to move air from the dust collecting container to inside of the docking station, a collector configured to collect a foreign substance that is moved together with the air by driving of the suction device, a suction flow path along which air moves inside the docking station, a flow adjusting device configured to open or close the suction flow path, and at least one processor configured to control the suction device to operate based on the dust collecting container being coupled to the docking station, and control the flow adjusting device to periodically open and close the suction flow path in a state in which the suction device operates.

The present disclosure relates to an autonomous cleaning device and a wind path structure for use in the autonomous cleaning device. The wind path structure includes: a cleaning component for cleaning cleaned objects, a cleaned object storage container for storing the cleaned objects, and a power component for generating a wind, the cleaning component, the cleaned object storage container, and the power component being arranged sequentially in a moving direction of the autonomous cleaning device; a first-level wind duct located between the cleaning component and the cleaned object storage container, wherein the first-level wind duct is coupled with the power component such that the cleaned objects are delivered to the cleaned object storage container by the wind generated by the power component; and a second-level wind duct located between the cleaned object storage container and the power component, wherein the second-level wind duct has a bell-mouth shape and includes an inner wall, the inner wall including an arc-shaped segment facing toward the wind coming from the cleaned object storage container to direct the wind to an air inlet of the power component.

A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.

A cleaner includes: a suction motor that generates suction force; a dust separation unit disposed under the suction motor and separates dust from air; a handle disposed behind the suction motor; and a battery disposed under the handle and behind the dust separation unit to supply power to the suction motor.

A cleaner includes: a suction motor that generates suction force; a dust separation unit that is disposed behind the suction motor and separates dust from air sucked by the suction force of the suction motor; a dust container that stores dust separated by the dust separation unit; a handle disposed behind the dust separation unit; a battery housing disposed under the handle; and a battery that is detachably coupled to the battery housing and is separable downward from the battery housing.

A vacuum cleaner comprising: a housing; a fan; a dirt collection chamber having an opening for emptying dirt from the dirt collection chamber; and a cover movable between a closed position, in which the cover seals the opening, and an open position, wherein the vacuum cleaner is configured to operate: in a suction mode in which the fan generates a suction airflow from an air inlet to an air outlet; and in a blow mode in which the fan generates a blowing airflow from the air outlet to the opening when cover is in the open position.