EP3446609A1 - Aspirateur et procédé de fonctionnement d'un aspirateur - Google Patents

Aspirateur et procédé de fonctionnement d'un aspirateur Download PDF

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Publication number
EP3446609A1
EP3446609A1 EP18184175.0A EP18184175A EP3446609A1 EP 3446609 A1 EP3446609 A1 EP 3446609A1 EP 18184175 A EP18184175 A EP 18184175A EP 3446609 A1 EP3446609 A1 EP 3446609A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
power
blower
boost
boost stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18184175.0A
Other languages
German (de)
English (en)
Inventor
Michael Agethen
Martin Behrenswerth
Volker Gerth
Ramona Vahle
Otto Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3446609A1 publication Critical patent/EP3446609A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2821—Pressure, vacuum level or airflow
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof

Definitions

  • the invention relates to a vacuum cleaner for cleaning and maintenance of floor surfaces with a blower for generating a negative pressure for receiving dirt by means of an air flow and a separation system for cleaning the air taken from the dirt, an adjustment for adjusting the performance of the blower, wherein the vacuum cleaner for a continuous operation of the vacuum cleaner via the adjustment adjustable maximum power and adjustable for a short-term operation of the vacuum cleaner via the adjustment boost stage, wherein the adjustable in the booster stage power of the blower is higher than the maximum power, wherein the vacuum cleaner has at least one sensor. Moreover, the invention relates to a method for adjusting a blower power of a vacuum cleaner.
  • vacuum cleaners are used to clean surfaces such as textile floor coverings and smooth floors.
  • a floor nozzle of the vacuum cleaner is continuously pushed back and forth on a floor surface for dust absorption.
  • energy classes are given, in which much lower recording powers are allowed.
  • the aerodynamic performance of the vacuum cleaner goes down, which is quite sufficient for normal sucking, but in a location with a particularly stubborn dirt, especially on smooth floors, but can lead to a limitation in performance.
  • the dust absorption efficiency of the vacuum cleaner depends strongly on the setting of the fan. In the context of reducing energy consumption in vacuum cleaners, the setting of the blower plays an increasingly important role.
  • the dimensioning of vacuum cleaner fans follows a trend towards less power, which initially results in lower volume flows available at the floor nozzle, so that due to the continuity relationship at the floor nozzles, generally lower flow rates result.
  • the floor nozzles are adapted in particular by additional lips on the suction mouths to the lower volume flows.
  • these extra lips increase the shearing forces acting on the bottom jets, making handling difficult for the user.
  • Another possibility is to equip the floor nozzles with agitators such as brush rollers, which actively process the floor surface and thus dissolve adhering dirt particles from the floor surface, in particular from carpet fibers. A satisfactory cleaning especially on smooth floors is with these solutions, however unavailable. Reducing the volume flow leads to inadequate cleaning results when using the vacuum cleaner on even floors.
  • the invention thus presents the problem of providing an improved vacuum cleaner and an improved method for adjusting a fan power of a vacuum cleaner.
  • a vacuum cleaner with the features of claim 1 and a method for adjusting a fan power of a vacuum cleaner according to claim 6.
  • the sensor is adapted to generate a signal dependent on the generated negative pressure signal
  • the adjusting device is adapted to adjust the power of the blower with a set boost stage depending on the signal of the sensor to a boost power
  • the blower power can be increased selectively, so that optimum cleaning results are achieved even on carpets and stubborn dirt on the floor surface to be cleaned, without the increase in performance having a negative effect on the resulting sliding forces.
  • the precise adjustment of the negative pressure generated in the boost stage by the sensor signal dependent adjustment of the boost power prevents seizing the vacuum cleaner connected to the floor nozzle.
  • a floor nozzle connected to the vacuum cleaner can very effectively pick up dissolved dirt particles and so on ensure effective dust absorption, especially on carpeted floors.
  • effective cleaning of the floor surface, both on smooth floors and on textile floor coverings can be achieved with sufficiently high flow speeds with specifically increased fan performance.
  • a vacuum cleaner dust collection efficiency can therefore be advantageously increased, so that even at low recording powers in continuous operation for a short time good dust pickup values can be achieved especially on smooth floors but also on carpets.
  • the volume flow required in continuous operation can be further reduced for effective cleaning, so that more economical blowers can be installed in the vacuum cleaner.
  • the reduction of the volume flows in continuous operation also leads to lower flow losses, especially in bagless separators, so that further energy can be saved here, with a higher volume flow can be adjusted if necessary, if a persistent contamination must be removed from the floor surface.
  • the achievable with the invention advantages are in addition to the possibility of a short-term increase in the blower power of the vacuum cleaner on the maximum performance of the cleaner for the permanent service also in that the power increase can be specifically increased by the boost stage. As a result, the performance increase can be precisely adjusted to the particular application.
  • the adjustment device which provides for a short-term operation of the vacuum cleaner an adjustable boost stage, the boost power is higher than the maximum power in continuous operation, provides an effective power reserve, since the targeted steigerbare performance of the fan provides optimal handling and cleaning options on different ground surfaces.
  • the floor surface may be covered by a textile floor covering such as a carpet or carpet or by a smooth floor such.
  • a textile floor covering such as a carpet or carpet or by a smooth floor such.
  • a wood parquet, laminate or PVC flooring are formed.
  • the vacuum cleaner has a blower for generating a negative pressure, through which the floor nozzle guided via a floor surface to be cleaned receives dust and dirt from the floor surface.
  • the floor nozzle is moved back and forth by the user by means of push and pull movements in the machine direction.
  • the floor nozzle slides over the floor surface to be cleaned.
  • the underside of the floor nozzle slides over the carpet, while the bottom with smooth floors spaced, possibly floated by spacer bristles, over these bottom surfaces away.
  • the user can handle for example a connected to the suction pipe handle of the vacuum cleaner.
  • the suction mouth of the floor nozzle is elongate and extends substantially transversely to the machining direction.
  • Elongated formed in this context means that the preferably substantially rectangular suction mouth has a greater length transversely to the machining direction, as the width in the machine direction.
  • the suction mouth is preferably between 20 and 30 cm across the processing direction long.
  • the vacuum cleaner can also be designed as a self-propelled vacuum cleaner, in particular suction robot, so that the machining direction of the floor nozzle corresponds to the direction of travel of the self-propelled vacuum cleaner.
  • a vacuum cleaner housing of the vacuum cleaner may have a dust receiving chamber in which the dust received via the floor nozzle can be collected, for example, in a dust bag.
  • the increase in performance of the vacuum cleaner fan is preferably at 300 to 400 watts maximum power in continuous operation to 500 to 900 watts boost power in the boost stage.
  • the boost stage is activated for a short-term operation of 5 to 30 minutes, preferably 10 to 15 minutes duration.
  • the sensor for detecting the negative pressure generated by the blower can be arranged in a suction hose connected to the vacuum cleaner or in the dust chamber of the vacuum cleaner.
  • the adjustment device is designed to regulate the boost power in the boost stage in a range above the maximum power.
  • the sensory monitoring of the negative pressure generated by the fan and the regulation of the boost power in the boost stage ensure that switching on the boost stage does not lead to high sliding forces on the floor nozzle or the vacuum cleaner. This effectively prevents the setting of unfavorable operating points.
  • a pressure sensor sensor is provided which is in communication with the adjustment device. The signals of the sensor are intended to ensure that when switching on the boost stage is prevented that the vacuum cleaner or attached to the vacuum cleaner floor sucks on the floor surface to be cleaned.
  • the adjuster prevents, when a predetermined limit value for the negative pressure is exceeded, a tight suction of the floor nozzle and thus increased shift forces by controlling the boost power in a range above the maximum power depending on the signal from the sensor.
  • the limit value for this pressure control is a value in the range of 90 to 120 mbar. This is for the application on carpets and smooth floors and for the application of attached suction accessories, such as upholstery nozzles, crevice nozzles, turbo nozzles or the like advantageous and useful.
  • the adjusting device is adapted to increase the blower power using a request signal to increase the blower power on the boost performance.
  • the request signal may represent an electrical signal.
  • the request signal can be a request of a user or a component of the vacuum cleaner, for example, a special floor nozzle, to increase the fan power on the maximum power of continuous operation.
  • a short-term increase in the fan power on Boost can be done.
  • the request signal can be used to activate a boost function of the vacuum cleaner, in which the blower power of the vacuum cleaner can be briefly increased above the maximum power for continuous operation.
  • a preferred embodiment provides that a user interface is adapted to receive a request signal for increasing the blower power from the user of the vacuum cleaner.
  • the user interface for receiving the request signal by the user of the vacuum cleaner may be formed as a push-button switch or slider or the like.
  • Such a user interface can be attached both to a handle of the vacuum cleaner, as well as to the housing of the vacuum cleaner. It is envisaged to operate the vacuum cleaner so that an increased fan power is accessed by operating the arranged in or on the handle user interface or arranged in or on the device housing of the vacuum cleaner user interface.
  • the signals of the user interface arranged on a handle can be transmitted by radio to the setting device in the device housing of the vacuum cleaner.
  • the user interface in or on the handle preferably has its own power supply in the form of a rechargeable battery or a battery.
  • the invention further relates to a method for adjusting a blower output of a vacuum cleaner already described in greater detail below for cleaning and maintaining floor surfaces, wherein the vacuum cleaner has a maximum power provided for continuous operation of the vacuum cleaner and a boost stage provided for short-term operation of the vacuum cleaner, wherein the power of the fan provided in the boost stage is higher than the maximum power, the vacuum cleaner having at least one sensor, wherein the sensor generates a signal dependent on the generated negative pressure, wherein the power of the blower with activated boost stage depending on the signal of the sensor to a boost power is set.
  • the setting of the fan power should preferably be 300 to 400 watts maximum power in continuous operation to 500 to 900 watts Boost among in the boost stage.
  • the boost stage is activated for a short time of 5 to 30 minutes, preferably 10 to 15 minutes, to prevent the blower from overheating.
  • An advantageous embodiment of the method provides that the adjustment of the fan power using a request signal to increase the fan power on the boost stage takes place.
  • the request signal may represent an electrical signal.
  • a boost function of a so operated vacuum cleaner can be activated, in which the fan power of the vacuum cleaner can be briefly increased above the maximum power for continuous operation.
  • the request signal is activated by the user via a user interface. Via the user interface, the request signal can be triggered by the user of the vacuum cleaner. It is envisaged to operate the vacuum cleaner so that by pressing the user interface is increased compared to the maximum power in continuous operation fan power.
  • a preferred embodiment of the method provides that after a brief operation in the boost stage is automatically switched back to the maximum power.
  • the automatic switch back to maximum power ensures that the vacuum cleaner operated in this way operates energy-efficiently in continuous operation and that requested performance increases do not permanently increase the consumption of the vacuum cleaner.
  • FIG. 1 a vacuum cleaner 1 with floor nozzle 5 is shown purely schematically.
  • the representation according to FIG. 1 shows a vacuum cleaner 1 according to the invention with a connected to the vacuum cleaner 1 floor nozzle 5.
  • the vacuum cleaner 1 shown in the embodiment is a so-called canister vacuum cleaner.
  • the floor nozzle 5 is connected here via its connecting piece 6 with a preferably telescopically designed intake manifold 7.
  • the floor nozzle 5 in this embodiment shown on a separate from the vacuum cleaner housing 8, 8a housing 9.
  • the telescopic suction tube 7 merges into a handle 10, to which a suction hose 11 is connected, which is connected to the vacuum cleaner housing 8, 8a.
  • An electric connection cable 12 is used to operate a fan (not shown) of the vacuum cleaner 1, which is integrated in the vacuum cleaner housing 8, 8a, in order to generate a negative pressure.
  • a fan not shown
  • dirt and dirt are absorbed by the floor surface 30 to be cleaned by an air flow through the suction mouth of the floor nozzle 5 and transported via the suction pipe 7 and the suction hose 11 into the housing 8, 8a of the vacuum cleaner 1.
  • a separation system 2 which in the exemplary embodiment is designed as a dust bag.
  • This separation system 2 is located in a formed by the housing parts 8, 8a and the vacuum cleaner 1 dust chamber 13.
  • This dust chamber 13 is shown by a folding mechanism between the vacuum cleaner housing parts 8 and 8a accessible and open, so that the separation system 2 is visible and removable.
  • the dust chamber 13 is closed and generates a negative pressure.
  • the air flow generated by the negative pressure is freed in the separation system 2 of dirt and dirt and led out of the vacuum cleaner 1 via an exhaust grille 14.
  • this has a user interface 4 in the form of a treadle 4.
  • This treadle 4 includes switches that are large enough for a user to operate with his foot.
  • the treadle circuit 4 usually also has a switch for actuating the automatic winder for the connection cable 12 (not shown) integrated in the vacuum cleaner housing 8, 8a.
  • On the handle 10 is also user interface 3 in the form of a manual circuit 3, with the functions of the vacuum cleaner 1 can be activated.
  • the vacuum cleaner 1 can be switched on and off via the manual circuit 3, and power levels of the fan (not shown) can be selected.
  • a request signal for increasing the blower power to a boost power can be generated by the user.
  • the vacuum cleaner 1 has for this purpose a (not shown) adjusting device for adjusting the performance of the vacuum cleaner fan, which is connected to the user interfaces 3, 4.
  • a boost stage can be selected via the setting device. This boost stage temporarily provides a blower output that is higher than the maximum output for continuous operation.
  • the vacuum cleaner 1 has at least one sensor (not shown) which detects the negative pressure generated by the blower and generates a signal dependent on the generated negative pressure when the booster stage is activated.
  • the adjustment device is configured to adjust the power of the fan in the selectable boost stage depending on the signal from the sensor.
  • the boost power in the boost stage can be regulated in a pressure-dependent manner in a range above the maximum power. After a short-term operation of the blower in the boost stage of about 5 to 30 minutes, preferably 10 to 15 minutes duration switches the setting of the vacuum cleaner 1, the fan power automatically in the maximum power for continuous operation.
  • the invention is not limited to the illustrated embodiment. Further embodiments are possible without departing from the basic idea.
  • the floor nozzle can also be designed as part of a self-propelled vacuum cleaner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP18184175.0A 2017-08-22 2018-07-18 Aspirateur et procédé de fonctionnement d'un aspirateur Withdrawn EP3446609A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017119108.9A DE102017119108A1 (de) 2017-08-22 2017-08-22 Staubsauger und Verfahren zum Betrieb eines Staubsaugers

Publications (1)

Publication Number Publication Date
EP3446609A1 true EP3446609A1 (fr) 2019-02-27

Family

ID=62985951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18184175.0A Withdrawn EP3446609A1 (fr) 2017-08-22 2018-07-18 Aspirateur et procédé de fonctionnement d'un aspirateur

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EP (1) EP3446609A1 (fr)
DE (1) DE102017119108A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019113543A1 (de) 2019-05-21 2020-11-26 Miele & Cie. Kg Staubsauger zur Reinigung von Bodenflächen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370610A1 (fr) * 1988-10-19 1990-05-30 Hoover Limited Aspirateur
EP0506187A1 (fr) * 1991-03-29 1992-09-30 Koninklijke Philips Electronics N.V. Appareil au moins muni d'un moteur électrique de puissance variable
EP2842471A1 (fr) 2013-08-28 2015-03-04 Miele & Cie. KG Aspirateur doté d'une commande destinée à régler la puissance de la soufflante
DE102014108479A1 (de) 2014-06-17 2015-12-17 Miele & Cie. Kg Verfahren und Einstellvorrichtung zum Einstellen einer Betriebsleistung einer Saugvorrichtung, Handgriff zum Führen einer Saugvorrichtung sowie Saugvorrichtung
DE102015106878A1 (de) * 2015-05-04 2016-11-10 Miele & Cie. Kg Staubsauger und Verfahren zum Steuern einer Energieversorgung in einem Staubsauger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016118248A1 (de) * 2015-10-30 2017-05-04 Vorwerk & Co. Interholding Gmbh Reinigungsgerät, insbesondere Haushaltsstaubsauger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370610A1 (fr) * 1988-10-19 1990-05-30 Hoover Limited Aspirateur
EP0506187A1 (fr) * 1991-03-29 1992-09-30 Koninklijke Philips Electronics N.V. Appareil au moins muni d'un moteur électrique de puissance variable
EP2842471A1 (fr) 2013-08-28 2015-03-04 Miele & Cie. KG Aspirateur doté d'une commande destinée à régler la puissance de la soufflante
DE102014108479A1 (de) 2014-06-17 2015-12-17 Miele & Cie. Kg Verfahren und Einstellvorrichtung zum Einstellen einer Betriebsleistung einer Saugvorrichtung, Handgriff zum Führen einer Saugvorrichtung sowie Saugvorrichtung
DE102015106878A1 (de) * 2015-05-04 2016-11-10 Miele & Cie. Kg Staubsauger und Verfahren zum Steuern einer Energieversorgung in einem Staubsauger

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Publication number Publication date
DE102017119108A1 (de) 2019-02-28

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