A surface cleaning apparatus has a cyclone chamber provided in an air flow path. The cyclone chamber has a screen assembly with an outlet section, a longitudinally spaced apart distal section and a longitudinally extending porous section. The outlet section includes a non-porous member extending longitudinally inwardly an outlet section length from an outlet end of the outlet section to a longitudinally inwardly positioned inlet end of the outlet section. The outlet end of the outlet section overlies a cyclone air outlet. The porous section extends longitudinally inwardly from an outlet end of the porous section that is located at the inlet end of the outlet section. The distal section has a distal section length in the longitudinal direction that is greater than the cyclone outlet port length.

A cyclone assembly for a surface cleaning apparatus has two cyclonic stages wherein the second cyclonic cleaning stage comprises a second stage dirt collection region and at least a portion of the second stage dirt collection region is positioned longitudinally above and overlying a first stage cyclone chamber.

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner including a case detachably provided at a cleaner body to accommodate dust and of which an upper surface and a lower surface are opened; a cyclone provided inside the case to separate the dust; an upper cover configured to shield the upper surface of the case and having a suction port through which the dust is suctioned and a discharge port through which air separated from the dust is discharged; an upper locker rotatably installed at an outer surface of the case and configured to selectively restrict the upper cover; a lower cover configured to shield the lower surface of the case; and a lower locker slidably installed at the outer surface of the case and configured to selectively push and open the lower cover.

A robot cleaner comprising: a first housing including a controller and a driving wheel of which driving is controlled by the controller; a second housing provided at one side of the first housing, the second housing having a brush module or mop module mounted thereto; a front bumper provided at a front portion of the second housing, the front bumper configured to be movable to the inside of the second housing when the front bumper is in contact with an obstacle; at least one sensing means provided at the inside of the front bumper to sense a movement of the front bumper to the inside of the second housing; side bumpers respectively provided at left and right side portions of the second housing, the side bumpers each being configured to movable to the inside of the second housing when the side bumper is in contact with an obstacle; and a link member provided at the inside of the side bumper to allow the side bumper and the front bumper to interlock with each other such that, when the side bumper is moved to the inside of the second housing, at least one portion of the front bumper is moved together with the side bumper to the inside of the second housing.

A robot cleaner comprising: a cleaner body including a wheel unit and a controller controlling driving of the wheel unit; a suction unit disposed to protrude from the cleaner body, the suction unit sucking air containing dust; and a sensing unit disposed at the front of the cleaner body in which the suction unit is disposed, wherein at least one portion of the sensing unit is disposed to overlap with the suction unit in the top-bottom direction of the cleaner body.

A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; a suction unit mounted in the cleaner body to suck air containing dust; a dust container detachably coupled to the dust container accommodation part, the dust container filtering and collecting dust from sucked air; and a dust container cover including a hinge part rotatably coupled to the cleaner body, the dust container cover detachably coupled to the dust container to cover a top surface of the dust container.

A autonomous cleaner includes: a cleaner body including a wheel unit for autonomous traveling; a suction unit provided to protrude from one side of the cleaner body, the suction unit sucking air containing dust; a sensing unit provided at the one side of the cleaner body; a dust container accommodated in a dust container accommodation part formed at the other side of the cleaner body, the dust container collecting dust filtered from sucked air; and a dust container cover hinge-coupled to the cleaner body to be rotatable, the dust container cover being provided to cover a top surface of the dust container when the dust container cover is coupled to the dust container.

A vacuum cleaner includes a hand-held device and the hand-held device has a housing defining an air inlet and an air blowing port at a front end thereof, the air blowing port being disposed adjacent to the air inlet; a dust cup disposed in the housing and connected to the air inlet; and an electric motor defining a motor chamber in communication with the dust cup, in which an airflow entering through the air inlet flows out of the air blowing port after flowing through the dust cup and the electric motor.

A hand-held vacuum cleaner (100) is provided, including a dust cup (2), the dust cup includes a first cyclone, a cyclone assembly, and a filtration member. The cyclone assembly includes a plurality of second cyclones (22), a guiding channel (23) is defined between two of the plurality of the second cyclones (22), the guiding channel (23) is in communication with the first air vent and an airflow is guided to an outer circumference of the cyclone assembly by the guiding channel (23) along a tangent line to a circumferential wall of the second cyclone (22) adjacent to the guiding channel (23), each second cyclone (22) has an air inducing notch (222), each second cyclone (22) is provided with an air guiding pipe (221), the filtration member is disposed along the outer circumference of the cyclone assembly, and the airflow in the outer circumference of the cyclone assembly tangentially enters the second cyclone (22) through the filtration member and the air inducing notch (222).

A cleaner includes: a main body that receives a suction motor; and a filter unit that is detachably coupled to the main body to filter air discharged from the suction motor and includes a ring-shaped filter and a filter frame that receives the ring-shaped filter, wherein the filter frame includes: an inner frame; an outer frame that defines a filter space for receiving the filter in cooperation with the inner frame; and a ring-shaped filter cover that connects the outer frame and the inner frame to each other and has one or more air openings.