A vacuum cleaner has a nozzle with an electric motor and a cleaning device driven thereby. A separate suction unit has an electric fan for drawing in air and a collector for separating dust from the drawn-in air. A suction conduit extends between the nozzle and the suction unit so the electric fan draws air and dust in through the nozzle, pulls it through the conduit, and separates the dust from the air in the collector. The conduit further has a rigid pipe having an outer end connected to the nozzle and an opposite inner end and a flexible hose connected between the inner end and the suction unit and opening into the collector. A power unit for the nozzle motor has a housing mounted on the pipe, a lithium-ion battery contained in the housing, and a control contained in the housing and operating the electric motor of the nozzle from the battery.

A vacuum may include a cleaner body including a suction motor for generating suction force, a suction part communicating with the cleaner body and suctioning air and dust, and a battery assembly for supplying a power to the suction motor. The battery assembly may include a battery unit, a battery terminal, a switch for connecting or disconnecting the battery unit and the battery terminal, and a battery case for accommodating the battery unit. The cleaner body may include a body supporting the battery assembly and a switching operation part for operating the switch when the battery assembly is mounted on the cleaner body.

A portable surface cleaning apparatus for a floor surface includes a main housing assembly adapted to be hand carried by a user, the main housing assembly carrying a fluid delivery system adapted for storing cleaning fluid and delivering the cleaning fluid to the surface to be cleaned, and a fluid recovery system adapted for removing the cleaning fluid and debris from the surface to be cleaned and storing the cleaning fluid and debris that was recovered, the main housing assembly comprising a base housing, a supply tank received on the main housing assembly, a recovery tank received on the main housing assembly separately from the supply tank.

A cleaner includes a case having an opening formed in a lower side. The cleaner also includes a brush assembly disposed inside the case. The brush assembly includes a horizontally disposed brush bar and a brush coupled to the brush bar. The cleaner includes a suction port for suctioning dust collected by the brush assembly. The cleaner also includes a motor that provides power to the brush assembly. Further, the cleaner includes an operation assembly, connecting the motor and the brush assembly, and converting a rotational movement of the motor into a translational motion of the brush assembly. The operation assembly includes a rotating member coupled to a shaft of the motor, a link connected to the rotating member, a connecting member connecting the brush bar and the link, and a guide rail for guiding the connecting member in a longitudinal direction.

The present disclosure provides a control method capable of, by using a current value of a nozzle, determining whether a nozzle is separated from a vacuum cleaner and whether the nozzle is reconnected to the vacuum cleaner after separation. To this end, a vacuum cleaner may comprise a nozzle connectable to a suction unit for suctioning dusts. The nozzle may comprise a rotary cleaning unit for applying pressure to a cleaning target surface so as to separate a foreign substance therefrom, and a nozzle motor for driving the rotary cleaning unit. In order to drive the nozzle, a voltage having been controlled by a pulse width modulation (PWM) method is applied, and a measurement unit included in the vacuum cleaner may measure a current value of the nozzle, the current value depending on the applied voltage.

The present invention relates to a modular cleaner which has each constituent component modularized to have the connecting order changed in accordance with a usage condition or be used by selecting and coupling only the necessary constituents, the modular cleaner comprising: a body unit having a motor and an impeller therein to generate a suction force, and having a dust collecting part for storing impurities; a battery unit provided on the body unit and for applying a power source to the motor and impeller; a handle unit which can be detached from the body unit and has a grip part which can be held by a user; and a cleaning unit applying physical force to an object to be cleaned by coming into contact with the object to be cleaned, wherein coupling parts for coupling with the handle unit or cleaning unit are provided on both end parts of the body unit.

Vacuums including a water pan mount coupled to a housing and configured to receive a water pan are provided herein. The housing is operably rotatable around a fulcrum, relative to the water pan mount, to secure the water pan within the housing. At least one latch is coupled to the housing and is operably positionable in an engaged position and in a disengaged position, wherein, in the engaged position, the at least one latch prevents rotation of the housing around the fulcrum.

The present disclosure provides a control method for automatically detecting what kind of nozzle is a nozzle mounted on a cleaner by using different starting current profiles. The cleaner may include a suction unit for suctioning dust, and various nozzles which are detachable from the suction unit. The nozzle may include a rotation cleaning unit which is accommodated in the nozzle to clean a surface to be cleaned, and a nozzle driving unit for driving the rotation cleaning unit. The nozzle may exhibit different starting current profiles depending on the number of rotations or reduction ratio of the nozzle driving unit, or whether an auxiliary control unit is included.

A structure for joining two or more robots to work in concert on a task is provided that includes a frame and an interface for joining the frame to the two or more robots. A remote-control device for controlling at least one robot is further provided that includes a smart device such as a smartphone, tablet, or computer, that is connected to a pedestal base via a pivot connection. A robotic system is further provided that includes a frame having a plurality of bracket arms extending from a hub, a distal end of each bracket arm having at least one of a plurality of interfaces. The robotic system also includes two or more robots each joined to the frame at at least one of the plurality of interfaces. The robotic system may further include a remote-control device, an attachment device connected to the frame, and/or an additional robot.

A canister surface cleaning apparatus comprising a canister body having a recess. The recess comprises a wall and sidewalls that extend away from the wall to define a volume. An air treatment assembly is removably mountable to the canister body. When the air treatment assembly is mounted to the canister body and the canister body is positioned with on the floor, the wall extends generally vertically and one of the sides of the air treatment assembly faces the wall and is positioned in the recess.