The present application relates to a cleaning appliance including: a hollow cylindrical housing; a housing wall dividing an internal space of the housing into a first space and a second space; a wall through-hole defined to pass through the housing wall; an intake port communicating the first space with an exterior of the housing; an exhaust including a cover through-hole and an exhaust hole defined to pass through a top face of the housing; a fan fixed to the wall or the second space and positioned in the wall through-hole, wherein the fan flows air in the first space to the exhaust hole; a separator disposed in the first space to form a flow path for guiding air flowed into the intake port to the fan, wherein the separator separates a foreign matter from the air using a centrifugal force; and a display including: a display panel exposed to the exterior of the housing through the cover through-hole; a display housing fixing the display panel thereto; and a housing fastening portion for fixing the display housing to the wall or an inner circumferential face of the housing.

A bag-based filtering device for collecting debris from a cleaning robot via a debris evacuation station includes a filter bag configured to separate at least the portion of the evacuated debris from a flow of air generated by the evacuation station. The filtering device includes a conduit extending inward from an opening of the filter bag into the receptacle. The conduit is configured to pneumatically connect a receptacle of the filtering device with an inlet of the filtering device to direct the flow of air generated by the evacuation station through the filter bag to separate at least the portion of the evacuated debris from the flow of air.

An inflation mechanism adapted to a robotic device is provided. The inflation mechanism includes a regulating unit and a control unit. The regulating unit includes an inflatable air bag, a pressure detecting unit and a pressure adjusting unit. The inflatable air bag is arranged on a body surface of the robotic device. The pressure detecting unit is coupled to the inflatable air bag for detecting an internal pressure of the inflatable air bag. The pressure adjusting unit is coupled to the inflatable air bag for adjusting the internal pressure of the inflatable air bag. The control unit is coupled to the regulating unit. The control unit processes a signal received from the pressure detecting unit, and determines and controls the pressure adjusting unit to adjust the internal pressure of the inflatable air bag according to a set condition.

An evacuation station for collecting debris from a cleaning robot includes a controller configured to execute instructions to perform one or more operations. The one or more operations includes initiating an evacuation operation such that an air mover draws air containing debris from the cleaning robot, through an intake of the evacuation station, and through a canister of the evacuation station and such that a receptacle received by the evacuation station receives at least a portion of the debris drawn from the cleaning robot. The one or more operations includes ceasing the evacuation operation in response to a pressure value being within a range. The pressure value is determined based at least in part on data indicative of an air pressure, and the range is set based at least in part on a number of evacuation operations initiated before the evacuation operation.

The present disclosure relate to a cleaner and a controlling method, more particularly, to a vacuum cleaner that is configured to control a suction power and a duct pickup performance based on the material of the floor and the amount of the dust and foreign substances placed on the floor, and a controlling method of the same.

The present disclosure relates to a cleaner according to one embodiment, which includes a main body, a grip unit provided on the main body to be gripped by a user, a pressure sensor unit provided on the grip unit to detect pressure applied by the user to a part of an outer surface of the grip unit, a driving unit provided at a lower portion of the main body to move the main body, and a controller to control the driving unit based on the detected pressure.

A vacuum cleaner that includes a suction source configured to generate a suction airflow, a dirt collector in fluid communication with the suction source and configured to separate debris from the suction airflow and the dirt collector is configured to store the debris separated from the suction airflow. The vacuum further includes an infrared sensor operable to output a signal corresponding to a distance to an amount of debris stored in the dirt collector, a controller that receives the signal, and the controller is operable to determine a fill level stored in the dirt collector based on the signal. A visual display displays the fill level stored in the dirt collector.

A cleaning system comprising a vacuum source, a current sensor, a recovery tank having a shutoff float configured to float on a surface of fluid within the recovery tank, and a controller. The vacuum source is in fluid communication with a suction inlet via first and second air paths within the recovery tank. The shutoff float is further configured to block the first air path upon the fluid within the recovery tank reaching a desired level. The controller is configured to receive, from the current sensor, a signal indicative of the current drawn by the vacuum source. The controller is further configured to determine, based on the current drawn by the vacuum source crossing a threshold, the fluid within the recovery tank has reached the desired level and control an operating element of the cleaning system upon determining the fluid within the recovery tank has reached the desired level.

In general, the present disclosure is directed to nozzle control circuitry for use in surface cleaning devices that preferably reduces overall power consumption of a surface cleaning device by detecting the start of a cleaning operation by a user before energizing one or more components such as an agitator. The nozzle control circuitry can detect a cleaning operation based on data output from one or more sensors (also referred to herein as operation sensors). For example, the nozzle control circuitry can communicate with at least one of a motion sensor such as an accelerometer, an orientation sensor such as gyroscope, and/or an air pressure sensor operatively coupled within a dirty air inlet to detect the presence of generated suction.

The invention relates to a method for cleaning a filter of a vacuum cleaning apparatus, wherein in operation of the vacuum cleaning apparatus the filter has suction air flowing therethrough, said suction air being generated by a fan, the method including measuring a first pressure at an inflow section of the filter, measuring a second pressure at an outflow section of the filter, determining a pressure drop at the filter as a pressure difference between the first pressure and the second pressure, determining a quantity characterizing a volume flow of the suction air in the outflow section of the filter, determining, from the pressure difference and the quantity that characterizes the volume flow, a quantity characterizing a flow resistance of the filter, and initiating a filter cleaning operation in dependence upon the determined quantity that characterizes the flow resistance of the filter.