A surface cleaning apparatus has a cyclone chamber and a dirt collection chamber exterior to the cyclone chamber. The cyclone chamber has a sidewall extending from a first end to an axially opposed second end. A dirt outlet communicating with the dirt collection chamber is provided in the sidewall at a location intermediate the first and second ends of the cyclone chamber.

A surface cleaning apparatus has a cyclone chamber. The cyclone chamber has an air inlet at a first end and an air outlet at an opposed end. A screen member extends from the air inlet to the air outlet at the opposed end.

A surface cleaning apparatus has a cyclone chamber and a dirt collection chamber. The cyclone chamber has a sidewall extending from a first end to an axially opposed second end. The dirt collection chamber has first and second axially opposed ends, the second end of the dirt collection chamber is located axially inwardly from the first end of the dirt collection chamber and the second end of the dirt collection chamber has a second end wall that is spaced axially inwardly from the second opposed end of the cyclone chamber.

A robot cleaner comprising: a cleaner body including a wheel unit and a controller controlling driving of the wheel unit a suction unit disposed in 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 the sensing unit includes a first sensing part disposed respectively inclined with respect to side and top surfaces at an upper corner portion of the cleaner body to simultaneously photograph front and upper parts of the cleaner body.

A cyclone type dust collector includes a first cyclone comprising a first cyclone body configured to induce a cyclonic flow of air around a first flow axis extending in a vertical direction, a first air inlet formed in the first cyclone body, a first dust outlet formed in the first cyclone body, and a first air outlet formed in the first cyclone body; and a first dust container configured to communicate with the first dust outlet and collect dust separated from the air, wherein at least a part of the first cyclone body is horizontally adjacent to the first dust container in a first horizontal direction that intersects with the first flow axis.

A cleaner may include a cleaner main body or a main body; a dust container which is accommodated in the cleaner main body; a dust container cover or a cover which covers an upper portion of the dust container; a handle which is coupled to an upper end of the dust container cover; a sensing unit or module which detects information around the cleaner main body; and a rotation module or assembly which rotates the sensing unit relatively with respect to the dust container cover.

A surface cleaning apparatus comprises a hand vacuum cleaner, a surface cleaning head and an air flow conduit extending from the surface cleaning head air outlet to the hand vacuum cleaner air inlet, the air flow conduit comprising a rigid wand and a flexible suction hose positioned downstream of the rigid wand and upstream of the hand vacuum cleaner air inlet.

A vacuum cleaner includes a suction nozzle and a dirt separating and collecting system. The dirt separating and collecting system can include a bagless filter module and a bagged filter module that can be interchanged to convert the dirt separating and collecting system between a bagless configuration and a bagged configuration.

A dust cup, a dust cup assemble and a handheld cleaner are provided and the dust cup for the cleaner having the negative pressure device comprises a base and a cup casing, wherein the cup casing has a non-closed annular cross section with an opening so as to define a dust collecting chamber having a non-closed annular cross section in the cup casing, the cup casing is disposed at a top of the base, a mounting space located outside the dust collecting chamber is defined between an inner-ring wall face of the cup casing and a top wall of the base, a top of the mounting space is directly opened, and a side of the mounting space is opened by an opening, and the negative pressure device is mounted to the mounting space via an opened portion of the mounting space.

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; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to be respectively guided to lower and upper portions thereof.