Abstract:
Die Erfindung betrifft ein Reinigungssystem, umfassend ein selbstfahrendes und selbstlenkendes Bodenreinigungsgerät (12) und eine Ladestation (14, 02), wobei das Bodenreinigungsgerät (12) mindestens eine wiederaufladbare elektrische Batterie (34) und zwei mit dieser gekoppelte geräteseitige elektrische Kontaktelemente (54) umfasst, wobei die Ladestation (14, 102) eine Ladeeinheit (74) zum Bereitstellen elektrischer Energie und zwei mit dieser gekoppelte stationsseitige elektrische Kontaktelemente (62) umfasst, und wobei je ein geräteseitiges Kontaktelement (54) und ein stationsseitiges Kontaktelement (62) in einer Ladestellung des Bodenreinigungsgerätes (12) an der Ladestation (14, 102) zum Beaufschlagen der mindestens einen Batterie (34) mit elektrischer Energie zusammenwirken. Um ein derartiges Reinigungssystem bereitzustellen, das eine höhere elektrische Sicherheit aufweist, wird erfindungsgemäß vorgeschlagen, dass die geräteseitigen Kontaktelemente (54) und die stationsseitigen Kontaktelemente (62) erste Kontaktelemente (54) und zweite Kontaktelemente (62) umfassen, dass die ersten Kontaktelemente (54) in mindestens einer Ausnehmung (60) angeordnet sind, die an einem Gehäuse (16) des/der die ersten Kontaktelemente (54) umfassenden Bodenreinigungsgerätes (12) oder Ladestation gebildet ist, wobei die ersten Kontaktelemente (54) gegenüber einer vom Gehäuse (16) gebildeten Außenkontur zurückgesetzt in der mindestens einen Ausnehmung (60) angeordnet sind, und dass die/das die zweiten Kontaktelemente (62) umfassende Ladestation (14, 02) oder Bodenreinigungsgerät mindestens einen elektrisch isolierenden Kontaktelementträger (76) umfasst, an dem die zweiten Kontaktelemente (62) festgelegt sind und bezüglich dessen in der Ladestellung des Bodenreinigungsgerätes (12) in die mindestens eine Ausnehmung (60) eingreifenden Stirnseite (86) die zweiten Kontaktelemente (62) zurückgesetzt sind.
Abstract:
The invention relates to a nozzle (1) for a vacuum cleaner (2), the nozzle (1) comprising - a rotatable member (3) for picking up particles from a surface to be cleaned, the rotatable member (3) being arranged around a longitudinal axis (10) and being actuated by a motor (20) in order to rotate around said longitudinal axis (10), and - a cleaning arrangement for removing articles entangled to the rotatable member (3) in a cleaning procedure comprising at least one cleaning member (5) wherein the distance between the cleaning member (5) and the rotatable member (3) is variable to achieve a first state in which the cleaning member is arranged at a distance from the rotatable member (3) and a second state in which the cleaning member (5), during rotation of the rotatable member (3), cooperates with the rotatable member (3) in order to remove debris from the rotatable member (3), wherein the nozzle (1) comprises a sensor element (30) adapted to detect the temperature of at least one nozzle element in order to avoid an overload situation during the cleaning procedure.
Abstract:
Die Erfindung betrifft ein selbstfahrendes und selbstlenkendes Bodenreinigungsgerät, umfassend ein Gehäuse (26), ein im Gehäuse (26) angeordnetes Saugaggregat (70), einen Schmutzsammelbehälter (38), wobei Saugluft vom Saugaggregat (70) durch den Schmutzsammelbehälter (38) hindurch zum Beaufschlagen desselben mit Unterdruck einsaugbar ist und wobei das Saugaggregat (70) eine Abluftöffnung (79) für Abluft umfasst. Um ein derartiges Bodenreinigungsgerät bereitzustellen, das eine geringere Geräuschentwicklung aufweist, wird erfindungsgemäß vorgeschlagen, dass das Gehäuse (26) einen Abluftraum (58) umfasst, in den hinein die Abluft vom Saugaggregat (70) abgelassen wird und der mit Austrittsöffnungen (68) versehen ist, über die Abluft aus dem Gehäuse (26) austreten kann.
Abstract:
The invention relates to a cleaner head for a vacuum cleaner. The cleaner head has a dirty-air inlet provided in a main suction chamber of the cleaner head, an outlet duct extending from the main suction chamber for connection to a suction source, and a rotating brush bar housed inside the main suction chamber for agitating a floor surface contacted through the dirty-air inlet. The brush bar is driven by an air-cooled motor, which is mounted inside the cleaner head with at least a section of the motor being located inside the brush bar. To cool the motor in use, an external casing of the motor is provided a plurality of air-cooling holes consisting of at least one air intake and at least one air exhaust. These cooling holes are connected –intake to exhaust –to form one or more air-cooling paths through the inside of the motor. In accordance with the invention, each air intake is connected to an upstream clean air inlet by a stationary – not rotating -intake duct, and each air exhaust is similarly connected to a downstream clean air outlet by a stationary –not rotating –exhaust duct. This avoids the problems associated with using the rotating brush bar itself as a duct for carrying cooling air to the motor.
Abstract:
The invention relates to a device for operating a vacuum cleaner (10) having a receiving chamber (22) for a main filter (24), comprising a pressure sensor system (30; 30'; 30") for detecting a parameter which characterizes a vacuum in a first region lying downstream of the receiving chamber (22) in the suction flow direction, a detection unit (34; 34') which detects, in dependence on the detected parameter, whether a main filter (24) is inserted, and a control unit (36; 36') which prevents startup of the vacuum cleaner (10) and/or outputs warning information to an operator of the vacuum cleaner (10) if it is detected that no main filter (24) is inserted.
Abstract:
A portable vacuum cleansing system and method having a variable suction control, multiple cleaning head attachments, and an oscillating mechanism for exfoliating and deep cleaning various body parts. The system also preferably includes a UV LED light source for illumination and antimicrobial treatment. The system may be used for gentle and stimulating removal of dander, dirt, and foreign particles from the body and scalp, without irritation. Interchangeable brush and comb attachments are available for personal use and are distinguishable by color for use between family members. The system may also be used for removal of dander, dirt, and foreign particles from pets.
Abstract:
A method of controlling a single-phase permanent magnet electric machine, the method comprising: sequentially exciting and freewheeling a winding of the electric machine, wherein the winding is excited in advance of zero-crossings of back emf by an advance angle, and the winding is freewheeled over a freewheel angle; and varying the advance angle and the freewheel angle in response to changes in speed of the electric machine. Additionally, a control system for an electric machine, and a vacuum cleaner incorporating the control system and electric machine.
Abstract:
An electric system comprising a single-phase permanent-magnet electric machine and a control system for driving the electric machine under load at speeds in excess of 60 krpm. Additionally, a product comprising the electric system.
Abstract:
Disclosed is a system and method for controlling current in a switched reluctance motor by changing a dwell state including starting the motor in a normal mode, measuring current in the motor, comparing the measured current to a first threshold, triggering an interrupt if the measured current exceeds the first threshold, keeping a count of consecutive readings exceeding the first threshold, changing the dwell state from a first state to a second state if the measured current exceeds the first threshold and the count equals a set value, changing the dwell state from a second state to a third state if the measured current exceeds a second threshold, and triggering a fault condition if the measured current in the third state exceeds a third threshold.