EP2598008B1 - Dispositif et métode pour utiliser un aspirateur - Google Patents

Dispositif et métode pour utiliser un aspirateur Download PDF

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Publication number
EP2598008B1
EP2598008B1 EP11731345.2A EP11731345A EP2598008B1 EP 2598008 B1 EP2598008 B1 EP 2598008B1 EP 11731345 A EP11731345 A EP 11731345A EP 2598008 B1 EP2598008 B1 EP 2598008B1
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EP
European Patent Office
Prior art keywords
main filter
vacuum cleaner
detection unit
differential pressure
pressure sensor
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.)
Active
Application number
EP11731345.2A
Other languages
German (de)
English (en)
Other versions
EP2598008A2 (fr
Inventor
Silvio Hamm
Roland Illig
Stefan Kraft
Thomas Strehler
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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
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Publication of EP2598008A2 publication Critical patent/EP2598008A2/fr
Application granted granted Critical
Publication of EP2598008B1 publication Critical patent/EP2598008B1/fr
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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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • 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
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the invention relates to an apparatus and a method for operating a vacuum cleaner.
  • Known vacuum cleaners are usually operated with an insertable into a dust chamber of the vacuum cleaner filter paper filter bag as the main filter.
  • Vacuum cleaners are also known in which reusable dust collecting containers are used as the main filter. If it is forgotten in such vacuum cleaners to use a main filter in the form of a replaceable filter bag or a dust collector, there is a risk that the sucked dirt, especially lint and threads, get into the engine fan and cause damage there. In addition, a dirt-filled dust chamber in the vacuum cleaner is very difficult to empty and clean.
  • various embodiments of mechanical filter locks are known, which are essentially all based on either preventing the starting of the fan motor when the main filter is missing or preventing the dust chamber cover from closing.
  • Such a mechanical filter lock is for example in the DE 101 63 525 A1 described.
  • the present invention seeks to provide a vacuum cleaner and a method for operating a vacuum cleaner, which can be detected easily and safely, whether a main filter is inserted into the vacuum cleaner or not.
  • a vacuum cleaner comprises a pressure sensor system for detecting a variable which characterizes a negative pressure in a first region lying in the suction flow direction to the receiving space, a detection unit which detects depending on the detected size, whether a main filter is used, and a control unit which Preventing a startup of the vacuum cleaner and / or outputs a warning information to an operator of the vacuum cleaner, if it is detected that no main filter is used.
  • the method according to the invention provides that a variable is detected which characterizes a negative pressure in a first region lying in the suction flow direction after the receiving space, is detected as a function of the detected variable, whether a main filter is inserted, and prevents a startup of the vacuum cleaner and / or warning information is issued to an operator of the vacuum cleaner if it is detected that no main filter is inserted.
  • the main filter forms in the inserted state a resistance in the suction air flow (suction flow), which leads to a change in the pressure conditions in the area after the main filter.
  • suction flow suction flow
  • a much higher (absolute) negative pressure in the area after the main filter forms.
  • commissioning can not be allowed.
  • a controllable switching element may be provided, with the aid of an electrical supply line to the fan motor can be interrupted.
  • warning information for example in the form of an advertisement on a display or by activating a warning lamp, can be output, so that the operator of the vacuum cleaner is informed of the missing main filter.
  • the detection by means of a pressure sensor system offers the additional advantage that pressure sensor systems are already present in many vacuum cleaners, e.g. for detecting the degree of filling of the main filter. In this case, no additional hardware components are required for the "electronic filter barrier" realized according to the invention, which leads to considerable cost savings.
  • the pressure sensor system can detect the negative pressure in the first area lying in the suction flow direction after the receiving space directly by means of an analog pressure sensor.
  • the detection unit compares the detected negative pressure with a predefinable negative pressure threshold value and detects that no main filter is used when the negative pressure is below the negative pressure threshold value.
  • a similar functionality of the pressure sensor system is realized according to the invention with the aid of a pressure switch, which transmits an output signal to the detection unit, when the negative pressure in the first region is above a predeterminable negative pressure threshold.
  • the detection unit detects that no main filter is inserted when no output signal is received from the pressure switch.
  • the negative pressure in the area downstream of the receiving space for the main filter need not be detected directly. It is also sufficient to measure a quantity which characterizes the negative pressure in this area. For example, a differential pressure between a lying in Saugstromraum before receiving the second area and the in Suction current direction after the receiving space lying first area to be detected.
  • the detection unit can then compare the detected differential pressure with a predefinable differential pressure threshold value and, depending on the result of the comparison, detect whether or not a main filter has been inserted (differential pressure threshold exceeded).
  • the differential pressure can be determined particularly easily with the aid of an analog differential pressure sensor. Alternatively, however, at least two pressure sensors may be provided, wherein a first pressure sensor measures a first negative pressure in the first region and a second pressure sensor measures a second negative pressure in the second region. An evaluation unit can then determine the differential pressure as the difference between the first and the second negative pressure.
  • a further embodiment of the invention provides that the pressure sensor system comprises at least one differential pressure switch, which transmits an output signal to the detection unit when the differential pressure is above a predefinable differential pressure threshold, and the detection unit detects that no main filter is used when no output signal from the pressure switch is received.
  • FIG. 1 is a vacuum cleaner, in particular a vacuum cleaner, shown schematically and designated by the reference numeral 10.
  • the canister vacuum cleaner 10 has a housing 12. A arranged on the front side of the vacuum cleaner 10 connecting piece 14 is attached to the housing 2. At the connecting piece 14, a suction hose 16 is connected, which is connected to a floor nozzle 18, which is pushed over this for cleaning a bottom surface.
  • a dust chamber 20 In the housing 2 is a dust chamber 20, which also includes a receiving space 22 for a main filter 24 in the form of an exchangeable filter bag or a reusable dust collection container.
  • a non-illustrated fan motor is included in the housing 12. Since the general structure of such a vacuum cleaner is well known, it will not be discussed further.
  • the sucked by the blower motor air passes while sucking on the floor nozzle 18 and the hose 16 in the main filter, which filters out the dust and / or dirt particles, then passes the fan motor and passes through outlet openings, also not shown again from the vacuum cleaner housing 12 to the outside.
  • the vacuum cleaner 10 is therefore equipped with a system that allows to reliably detect whether a main filter 24 is used or not.
  • the vacuum cleaner 10 comprises a pressure sensor system 30, 30 ', 30 "(see. FIGS. 2 to 4 ) for detecting a magnitude, which characterizes a negative pressure in a lying in Saugstromraum after the receiving space 22 first region.
  • FIG. 2 shows a schematic representation of a first embodiment of the device according to the invention.
  • the control device comprises the pressure sensor system 30 which has a pressure sensor 32 which detects the negative pressure in the first region lying in the suction flow direction after the receiving region 22 and thus also in the inserted state of the main filter 24 after the main filter 24.
  • the suction flow direction is represented by corresponding arrows.
  • the pressure sensor 32 is designed as a pressure switch.
  • a detection unit 34 electrically connected to the pressure sensor 32 can compare the detected negative pressure with a predefinable negative pressure threshold value and, in the event that the negative pressure is below the negative pressure threshold value, detect that no main filter 24 has been inserted .
  • a pressure switch is used as the pressure sensor 32, which transmits an output signal to the detection unit 34 when the negative pressure in the first region is above the predeterminable negative pressure threshold value. If the detection unit 34 does not receive an output signal from the pressure switch, it detects that no main filter 24 is inserted.
  • a control unit 36 coupled to the detection unit 34 prevents the start-up of the vacuum cleaner, e.g. by actively interrupting the supply line to the blower motor, and / or outputs a warning information to an operator of the vacuum cleaner.
  • the detection unit 34 is in FIG. 2 shown as part of the control unit 36, but can also be realized separately from this. This also applies to the following further embodiments of the invention.
  • FIG. 3 shows a schematic representation of a second embodiment of the device according to the invention.
  • the control device comprises the pressure sensor system 30 'which comprises a differential pressure sensor 40 which detects a differential pressure between the first region lying in the suction flow direction after the receiving space 22 and a second region lying in the suction flow direction in front of the receiving space 22. As shown, this second region can be in the region between the dust chamber 20 and the outlet openings or even within the dust chamber 20.
  • the differential pressure sensor 40 is designed as a differential pressure switch.
  • a detection unit 34 'coupled to the differential pressure sensor 40 can detect the detected negative pressure with a compare predetermined differential pressure threshold and for the case that the differential pressure is below the differential pressure threshold, detect that no main filter 24 is inserted.
  • a differential pressure switch is used as a pressure sensor 40, which transmits an output signal to the detection unit 34 'when the negative pressure in the first range is above the predefinable differential pressure threshold value. If the detection unit 34 'does not receive an output signal from the differential pressure switch, it detects that no main filter 24 is inserted.
  • Analogous to the first embodiment according to Fig. 2 prevents a control unit 36 'coupled to the detection unit 34' to start up the vacuum cleaner and / or issues warning information to an operator of the vacuum cleaner.
  • FIG. 4 shows a schematic representation of a non-claimed third embodiment.
  • This embodiment differs from the second embodiment according to FIG Fig. 3 only in that the differential pressure is not detected by a single differential pressure sensor 40, but the pressure sensor system 30 "comprises two analog pressure sensors 50 and 52, wherein a first pressure sensor 52 has a first negative pressure in the first range and the second pressure sensor 50 a second negative pressure in the The differential pressure is then determined by an evaluation unit 54 as the difference between the first and the second negative pressure.
  • the evaluation unit 54 is in FIG. 4 shown as part of the control unit 36, but can also be realized separately from this, or also be integrated into the detection unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)

Claims (4)

  1. Aspirateur (10) comprenant un espace de logement (22) pour un filtre principal (24), comprenant
    - un système à capteur de pression (30 ; 30' ; 30") destiné à enregistrer une grandeur qui caractérise une sous-pression dans une première zone située en aval de l'espace de logement (22) dans le sens du courant d'aspiration,
    - une unité de détection (34 ; 34') laquelle détecte en fonction de la grandeur détectée si un filtre principal (24) est inséré, et
    - une unité de commande (36 ; 36') laquelle empêche une mise en marche de l'aspirateur (10) et/ou donne une information d'avertissement à une personne manipulant l'aspirateur (10) au cas où il est détecté qu'aucun filtre principal n'est inséré,
    caractérisé en ce que
    - le système à capteur de pression (30) comprend au moins un interrupteur à pression (32), lequel transmet un signal de sortie à l'unité de détection (34) lorsque la sous-pression dans la première zone est située au-dessus d'une valeur seuil de sous-pression prédéfinie et
    - en ce que l'unité de détection (34) détecte qu'aucun filtre principal (24) n'est inséré si le commutateur à pression (32) ne reçoit pas de signal de sortie.
  2. Aspirateur selon le terme générique de la revendication 1, caractérisé en ce que
    - le système à capteur de pression (30') comprend au moins un commutateur de pression différentielle (40), lequel transmet un signal de sortie à l'unité de détection (34') lorsque la pression différentielle est située au-dessus d'une valeur seuil de pression différentielle prédéfinie, et
    - en ce que l'unité de détection (34') détecte qu'aucun filtre principal (24) n'est inséré si le commutateur de pression différentielle (40) ne reçoit pas de signal de sortie.
  3. Procédé de fonctionnement d'un aspirateur (10) comprenant un espace de logement (22) pour un filtre principal (24), dans lequel
    - une grandeur est enregistrée, laquelle caractérise une sous-pression dans une première zone située en aval de l'espace de logement (22) dans le sens du courant d'aspiration,
    - dans lequel il est détecté, en fonction de la grandeur enregistrée, si un filtre principal (24) est inséré, et
    - dans lequel une mise en marche de l'aspirateur (10) est empêchée et/ou une information d'avertissement est donnée à une personne manipulant l'aspirateur (10), au cas où il est détecté qu'aucun filtre principal (24) n'est inséré,
    caractérisé en ce que
    - le système à capteur de pression (30) comprend au moins un interrupteur à pression (32), lequel transmet un signal de sortie à l'unité de détection (34) lorsque la sous-pression dans la première zone est située au-dessus d'une valeur seuil de sous-pression prédéfinie et
    - en ce que l'unité de détection (34) détecte qu'aucun filtre principal (24) n'est inséré si le commutateur à pression (32) ne reçoit pas de signal de sortie.
  4. Procédé de fonctionnement d'un aspirateur (10) selon le terme générique de la revendication 3,
    caractérisé en ce que
    - le système à capteur de pression (30') comprend au moins un interrupteur de pression différentielle (40), lequel transmet un signal de sortie à l'unité de détection (34') lorsque la pression différentielle dans la première zone est située au-dessus d'une valeur seuil de pression différentielle prédéfinie et
    - en ce que l'unité de détection (34') détecte qu'aucun filtre principal (24) n'est inséré si le commutateur de pression différentielle (40) ne reçoit pas de signal de sortie.
EP11731345.2A 2010-07-28 2011-07-12 Dispositif et métode pour utiliser un aspirateur Active EP2598008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010038577 DE102010038577B4 (de) 2010-07-28 2010-07-28 Vorrichtung und Verfahren zum Betreiben eines Staubsaugers
PCT/EP2011/061809 WO2012013483A2 (fr) 2010-07-28 2011-07-12 Dispositif et procédé pour faire fonctionner un aspirateur

Publications (2)

Publication Number Publication Date
EP2598008A2 EP2598008A2 (fr) 2013-06-05
EP2598008B1 true EP2598008B1 (fr) 2015-03-04

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Application Number Title Priority Date Filing Date
EP11731345.2A Active EP2598008B1 (fr) 2010-07-28 2011-07-12 Dispositif et métode pour utiliser un aspirateur

Country Status (3)

Country Link
EP (1) EP2598008B1 (fr)
DE (1) DE102010038577B4 (fr)
WO (1) WO2012013483A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019025566A1 (fr) 2017-08-03 2019-02-07 Alfred Kärcher SE & Co. KG Procédé de fonctionnement d'un appareil d'aspiration et appareil d'aspiration
US10660497B2 (en) 2017-06-12 2020-05-26 Emerson Electric Co. Upright vacuum cleaner having switch to detect a filter assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2021287162A1 (en) * 2020-06-11 2023-02-02 Husqvarna Ab Filter arrangements for industrial dust extractors
SE545877C2 (en) * 2020-06-11 2024-02-27 Husqvarna Ab Filter arrangements for industrial dust extractors
EP4188176A4 (fr) * 2021-04-05 2024-02-28 Karaca Züccaciye Ticaret ve Sanayi Anonim Sirketi Aspirateur électrique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155885A (en) * 1988-10-07 1992-10-20 Hitachi, Ltd. Vacuum cleaner and method for operating the same
DE8901003U1 (de) * 1989-01-21 1989-04-06 Interlava AG, Lugano Vorrichtung zur automatischen Saugleistungssteuerung eines Staubsaugers
KR0161987B1 (ko) * 1990-04-16 1998-12-01 미다 가쓰시게 진공소제기
US5920043A (en) * 1997-08-19 1999-07-06 Kinergy Industrial Co., Ltd. Circuit breaker control device for a vacuum cleaners dust hopper
DE10163525B4 (de) 2001-12-21 2004-03-25 BSH Bosch und Siemens Hausgeräte GmbH Filtersperre für einen Staubsauger
WO2007084543A2 (fr) * 2006-01-17 2007-07-26 Electrolux Home Care Products North America Aspirateur pour le nettoyage de cage d'escalier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10660497B2 (en) 2017-06-12 2020-05-26 Emerson Electric Co. Upright vacuum cleaner having switch to detect a filter assembly
US11185202B2 (en) 2017-06-12 2021-11-30 Emerson Electric Co. Upright vacuum cleaner having microswitch and filter assembly
WO2019025566A1 (fr) 2017-08-03 2019-02-07 Alfred Kärcher SE & Co. KG Procédé de fonctionnement d'un appareil d'aspiration et appareil d'aspiration
DE102017117684A1 (de) * 2017-08-03 2019-02-07 Alfred Kärcher SE & Co. KG Verfahren zum Betreiben eines Sauggeräts und Sauggerät

Also Published As

Publication number Publication date
WO2012013483A3 (fr) 2012-03-29
WO2012013483A2 (fr) 2012-02-02
DE102010038577B4 (de) 2012-02-23
DE102010038577A1 (de) 2012-02-02
EP2598008A2 (fr) 2013-06-05

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