EP2436294B1 - Aspirateur et procédé destiné au fonctionnement d'un aspirateur - Google Patents

Aspirateur et procédé destiné au fonctionnement d'un aspirateur Download PDF

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Publication number
EP2436294B1
EP2436294B1 EP11182860.4A EP11182860A EP2436294B1 EP 2436294 B1 EP2436294 B1 EP 2436294B1 EP 11182860 A EP11182860 A EP 11182860A EP 2436294 B1 EP2436294 B1 EP 2436294B1
Authority
EP
European Patent Office
Prior art keywords
threshold value
predeterminable
time
period
fill level
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
EP11182860.4A
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German (de)
English (en)
Other versions
EP2436294A3 (fr
EP2436294A2 (fr
Inventor
Alexander Flegler
Peter Lehmann
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 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
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2436294A2 publication Critical patent/EP2436294A2/fr
Publication of EP2436294A3 publication Critical patent/EP2436294A3/fr
Application granted granted Critical
Publication of EP2436294B1 publication Critical patent/EP2436294B1/fr
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    • 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
    • A47L9/19—Means for monitoring filtering operation
    • 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

Definitions

  • the invention relates to a vacuum cleaner and a method for operating a vacuum cleaner according to the preambles of the independent claims.
  • vacuum cleaners are usually operated with an insertable into a dust chamber of the vacuum cleaner replaceable filter bag as the main filter.
  • Vacuum cleaners are also known in which reusable dust collecting containers are used as the main filter.
  • vacuum cleaners are already known which are designed such that the user has the option of using the reusable dust collecting container or the disposable filter bag as needed.
  • Reduced air flow which e.g. can be caused by a filled main filter, a blockage or a sealed suction nozzle, can lead to overheating of the blower motor motor-driven vacuum cleaners.
  • precautions must be taken to avoid such overheating of the fan motor.
  • a vacuum cleaner which is operable either with or without replaceable filter bag in a dusty space, in which an electronics is provided, which compares the negative pressure in the dust chamber with a target value and initiates a fault cycle when the setpoint is exceeded. In this case, it is also provided to check, when the fault cycle is initiated, after a predetermined period of time, whether the negative pressure is still above the desired value and, in this case, to regulate the power of the vacuum cleaner.
  • a device for automatic suction power control of a vacuum cleaner which supplies only as much electrical power of the motor / blower unit, as is needed for optimum cleaning of the upcoming soil surface.
  • the device thus ensures a consistent cleaning effect over the service life of the vacuum cleaner, which dust and dirt particles are always recorded with a constantly fitting suction.
  • a vacuum cleaner is known in which a control device measures the negative pressure in the suction air duct between the dust filter and air inlet of the suction tool and adjusts by adjusting the engine power to a predetermined negative pressure range.
  • the invention has for its object to provide a vacuum cleaner and a method for its operation, in which a fault case in the form of reduced air flow with low cost and installation costs can be reliably detected and a high level of user friendliness reliable protection against overheating of the fan motor is guaranteed.
  • the vacuum cleaner comprises a blower motor, a dust chamber for receiving a main filter and a sensor system for detecting a characterizing an air flow rate.
  • an electronic unit initiates a fault mode in which the blower motor is operated with reduced power when the air flow rate is continuously below a predefinable flow rate limit value for a predefinable first period of time.
  • the electronic unit comprises a timer which, upon first falling below the throughput limit value or at first exceeding a first Gugrad- or first pressure limit value is started and is reset when subsequently exceeding the flow rate limit or falling below the first Gugrad- or first pressure limit.
  • a variable characterizing an air flow rate is detected and a fault mode in which the blower motor is operated at reduced power is initiated when the air flow rate is continuously below a predefinable flow rate limit for a predeterminable first period of time.
  • the air flow rate is characterized by the degree of filling of the main filter.
  • the sensor system detects a variable characterizing the degree of filling of the main filter and the electronics unit initiates the fault mode if the fill level of the main filter is continuously above a predefinable first fill level threshold value for the predeterminable first time duration.
  • the degree of filling in many vacuum cleaners anyway detected, so that the invention can be realized without any additional hardware.
  • the degree of filling of the main filter can be determined particularly easily and reliably on the basis of the vacuum prevailing in the dust chamber. Accordingly, it is provided according to an embodiment of the invention that the sensor system comprises at least one analog or digital pressure sensor which detects the negative pressure in the dust chamber and the electronic unit initiates the fault mode when the negative pressure in the dust chamber for the predetermined first time period continuously above a predetermined first pressure Threshold value.
  • the sensor system comprises at least one analog or digital pressure sensor which detects the negative pressure in the dust chamber and the electronic unit initiates the fault mode when the negative pressure in the dust chamber for the predetermined first time period continuously above a predetermined first pressure Threshold value.
  • other restrictions of the air flow caused by other means e.g. be detected by a blockage in an accessory, such as nozzle, suction tube or suction hose.
  • the timer can also be started when the flow rate limit value is fallen below for the first time or when the first filling level or first pressure limit is exceeded for the first time and then reset if the flow rate limit or the first pressure limit or first pressure limit are exceeded if the throughput limit value is not exceeded during the predeterminable first period of time by more than a predefinable second period of time or if the first filling level or first pressure limit value is not undershot during the predeterminable first time duration by a predefinable second time duration and / or if the throughput limit value Limit value is exceeded by a predetermined amount or the first Gregrad- or first pressure limit is undershot by a predetermined amount.
  • the vacuum cleaner on a filter change display by means of which a need for a change or emptying of the main filter is signaled when the degree of filling of the main filter exceeds a predetermined second Gregrad threshold value or the negative pressure in the dust chamber exceeds a predefinable second pressure threshold.
  • the output signals of the sensor system are used in this way both as a basis for the initiation of the disturbance mode and to display a necessary filter change. It is advantageous if the second filling level threshold value corresponds to the first filling level threshold value or the second pressure threshold value corresponds to the first pressure threshold value.
  • the first and / or second time periods are determined as a function of operating parameters and / or characteristics of the vacuum cleaner.
  • the time of initiation of a disturbance mode can be optimally adapted to the specific conditions, such as e.g. the performance of the blower motor to be adjusted.
  • the associated power reduction of the fan motor may result in the limits on air flow, main filter fill level, or vacuum in the dust chamber no longer being met.
  • the disturbance mode is terminated only when the vacuum cleaner is switched off or disconnected from a power supply.
  • FIG. 1 shows a perspective view of a vacuum cleaner according to the invention.
  • FIG. 1 a vacuum cleaner 1 is shown with a housing 2. In the rear region of the vacuum cleaner 1 two arranged on opposite longitudinal sides of the housing 2 rollers 3 are rotatably mounted. A arranged in the front region of the vacuum cleaner 1 at the top of the connecting piece 4 is attached to the housing 2. At the connecting piece 4, a suction hose 5 is connected, which is connected to a suction nozzle, not shown.
  • a dust chamber 6 In the housing 2 is a dust chamber 6.
  • the vacuum cleaner 1 is optionally operable with a replaceable filter bag 7, preferably a disposable filter ("bag” operation) or a reusable and emptying dust collection container 8 ("bagless” operation) as a main filter in the dust chamber 6.
  • the dust collecting container 8 is combined with a filter system 9. The dust collector 8 can be removed by opening the housing 2.
  • a blower motor 10, a sensor system 11 and an electronic unit 12 are also provided.
  • the sensor system 11 serves to detect a variable characterizing the air flow rate and may e.g. be executed as an analog or digital pressure sensor 13, which detects the negative pressure in the dust chamber 6 and thus indirectly the degree of filling of the replaceable filter bag 7 or the dust collector 8. Without influencing the applicability of the invention, however, the sensor system 11 can also detect another variable characterizing the air flow rate.
  • the electronic unit 12 evaluates the output signals of the sensor system 11. In particular, the detected variable characterizing the air flow rate is thresholded, e.g. the detected negative pressure in the dust chamber 6 compared with a first predetermined pressure threshold.
  • the electronics unit 12 initiates an interference mode in which the fan motor 10 is operated at reduced power.
  • the power is meaningfully set such that the resulting flow rate is just sufficient to ensure safe operation of the vacuum cleaner.
  • the first time period is monitored by a timer, which is an integral part of the electronic unit 12.
  • the filter change indicator 14 On the housing 2 of the vacuum cleaner 1 and a visible from the outside filter change indicator 14 is arranged. This serves to signal to an operator the need for a change of the replaceable filter bag 7 or emptying of the dust collector 8.
  • the detected by the sensor system 11 the degree of filling of the main filter characterizing size, eg the negative pressure in the dust chamber 6, compared with a second Grein- or pressure threshold, which advantageously corresponds to the first Gregrad- or the first pressure threshold. If this second threshold is exceeded, this indicates a degree of filling of the main filter, which is a change or make a drain required, which is signaled via the filter change indicator 14.
  • the interference mode may be provided to initiate the interference mode even if the detected variables in the short term, that is not longer than a predetermined second time period above or are below the corresponding limit value and / or the corresponding limit value is not exceeded or undershot by more than a predefinable value. This may e.g. be achieved in that the timer of the electronic unit 12 is not reset in such short-term fluctuations.
  • the first and / or second time periods may be varied depending on operating and / or characteristic quantities, such as e.g. the performance of the blower motor 10, the vacuum cleaner 1 are set.
  • the interference mode may be e.g. be stopped by the vacuum cleaner 1 off or from a power supply, so e.g. the public power grid, is disconnected.
  • the invention has been explained by way of example with reference to a vacuum cleaner, which can be operated either with an exchangeable filter bag 7 or a dust collector 8.
  • a vacuum cleaner which can be operated either with an exchangeable filter bag 7 or a dust collector 8.
  • the invention is also applicable to vacuum cleaners, which can only be operated with one of these main filter types.

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

Claims (14)

  1. Aspirateur (1) comprenant
    - un moteur de ventilateur (10),
    - un compartiment à poussière (6) servant à loger un filtre principal (7; 8) et
    - un système de capteurs (11) servant à détecter une grandeur caractérisant un débit d'air,
    - une unité électronique (12) qui introduit un mode de dérangement dans lequel le moteur de ventilateur (10) est actionné à puissance réduite, quand le débit d'air, pour une première durée prédéfinissable, est de façon continue au-dessous d'une valeur limite de débit prédéfinissable,
    caractérisé en ce que l'unité électronique (12) comprend un élément de temporisation servant au contrôle de la première durée, élément de temporisation qui est mis en marche lors d'un premier dépassement de la valeur limite inférieure du débit ou lors d'un premier dépassement d'une première valeur limite supérieure du niveau de remplissage ou de la pression, et est remis à zéro lors d'un dépassement suivant de la valeur limite supérieure du débit ou lors d'un dépassement de la première valeur limite inférieure du niveau de remplissage ou de la pression.
  2. Aspirateur selon la revendication 1, caractérisé en ce que
    - le débit d'air est caractérisé par le niveau de remplissage du filtre principal (7; 8)
    - le système de capteurs (11) détecte une grandeur caractérisant le niveau de remplissage du filtre principal (7; 8), et
    - l'unité électronique (12) introduit le mode de dérangement quand le niveau de remplissage du filtre principal (7; 8), pour la première durée prédéfinissable, est de façon continue au-dessus d'une première valeur de seuil du niveau de remplissage prédéfinissable.
  3. Aspirateur selon l'une des revendications 1 ou 2, caractérisé en ce que
    - le débit d'air et/ou le niveau de remplissage du filtre principal (7; 8) est caractérisé par une dépression dans le compartiment à poussière (6),
    - le système de capteurs (11) comprend au moins un capteur de pression (13) analogique ou numérique qui détecte la dépression dans le compartiment à poussière (6), et
    - l'unité électronique (12) introduit le mode de dérangement quand la dépression dans le compartiment à poussière (6), pour la première durée prédéfinissable, est de façon continue au-dessus d'une première valeur de seuil de la pression prédéfinissable.
  4. Aspirateur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'unité électronique (12) comprend un élément de temporisation servant au contrôle de la première durée, élément de temporisation qui est mis en marche lors d'un premier dépassement de la valeur limite inférieure du débit ou lors d'un premier dépassement de la première valeur limite supérieure du niveau de remplissage ou de la pression, et est remis à zéro lors d'un dépassement suivant de la valeur limite supérieure du débit ou lors d'un dépassement de la première valeur limite inférieure du niveau de remplissage ou de la pression, quand la valeur limite supérieure du débit est dépassée au cours de la première durée prédéfinissable pas plus longue qu'une seconde durée prédéfinissable, ou bien la première valeur limite inférieure du niveau de remplissage ou de la pression est dépassée au cours de la première durée prédéfinissable pas plus longue qu'une seconde durée prédéfinissable et/ou quand la valeur limite supérieure du débit est dépassée d'une valeur prédéfinissable, ou bien la première valeur limite inférieure du niveau de remplissage ou de la pression est dépassée d'une valeur prédéfinissable.
  5. Aspirateur selon l'une quelconque des revendications 2 à 4, caractérisé en ce qu'il est prévu un indicateur de remplacement de filtre (14) à l'aide duquel est signalée une nécessité d'un remplacement ou d'un vidage du filtre principal (7; 8), quand le niveau de remplissage du filtre principal (7; 8) dépasse une seconde valeur de seuil du niveau de remplissage prédéfinissable, ou bien la dépression dans le compartiment à poussière (6) dépasse une seconde valeur de seuil de la pression prédéfinissable.
  6. Aspirateur selon la revendication 5, caractérisé en ce que la seconde valeur de seuil du niveau de remplissage correspond à la première valeur de seuil du niveau de remplissage, ou bien la seconde valeur de seuil de la pression correspond à la première valeur de seuil de la pression.
  7. Procédé de fonctionnement d'un aspirateur (1) comprenant un moteur de ventilateur (10) et un compartiment à poussière (6) servant au logement d'un filtre principal (7; 8), procédé dans lequel
    - est détectée une grandeur caractérisant un débit d'air;
    - est introduit un mode de dérangement dans lequel le moteur de ventilateur (10) est actionné à puissance réduite, quand le débit d'air, pour une première durée prédéfinissable, est de façon continue au-dessous d'une valeur limite du débit prédéfinissable,
    caractérisé
    - en ce qu'un élément de temporisation servant au contrôle de la première durée est mis en marche lors d'un premier dépassement de la valeur limite inférieure du débit ou lors d'un premier dépassement d'une première valeur limite supérieure du niveau de remplissage ou de la pression, et est remis à zéro lors d'un dépassement suivant de la valeur limite supérieure du débit ou lors d'un dépassement de la première valeur limite inférieure du niveau de remplissage ou de la pression.
  8. Procédé selon la revendication 7, caractérisé en ce qu'une grandeur caractérisant le niveau de remplissage du filtre principal (7; 8) est détecté, et le mode de dérangement est introduit quand le niveau de remplissage du filtre principal (7; 8), pour la première durée prédéfinissable, est de façon continue au-dessus d'une première valeur de seuil du niveau de remplissage.
  9. Procédé selon l'une des revendications 7 ou 8, caractérisé en ce qu'une dépression est détectée dans le compartiment à poussière (6), et le mode de dérangement est introduit quand la dépression dans le compartiment à poussière (6), pour la première durée prédéfinissable, est de façon continue au-dessus d'une première valeur de seuil de la pression prédéfinissable.
  10. Procédé selon l'une quelconque des revendications 7 à 9, caractérisé en ce que le mode de dérangement est introduit, quand la valeur limite inférieure du débit est dépassée de façon continue, pour la première durée prédéfinissable, ou bien la première valeur limite supérieure du niveau de remplissage ou de la pression est dépassée de façon continue, pour la première durée prédéfinissable.
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que le mode de dérangement est introduit quand la valeur limite supérieure du débit est dépassée au cours de la première durée prédéfinissable pas plus longue qu'une seconde durée prédéfinissable, ou bien la première valeur limite inférieure du niveau de remplissage ou de la pression est dépassée au cours de la première durée prédéfinissable pas plus longue qu'une seconde durée prédéfinissable et/ou la valeur limite supérieure du débit est dépassée, au cours de la première durée, de pas plus qu'une valeur prédéfinissable, ou bien la première valeur limite inférieure du niveau de remplissage ou de la pression est dépassée, au cours de la première durée prédéfinissable, de pas plus qu'une valeur prédéfinissable.
  12. Procédé selon l'une quelconque des revendications 7 à 11, caractérisé en ce que la première durée est fixée en fonction de paramètres de fonctionnement et/ou de grandeurs caractéristiques de l'aspirateur (1).
  13. Procédé selon l'une quelconque des revendications 7 à 12, caractérisé en ce qu'une augmentation manuelle ou automatique de la puissance du moteur de ventilateur (10) est admise seulement après achèvement du mode de dérangement.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le mode de dérangement est achevé quand l'aspirateur (1) est arrêté ou coupé d'une alimentation en énergie.
EP11182860.4A 2010-09-29 2011-09-27 Aspirateur et procédé destiné au fonctionnement d'un aspirateur Active EP2436294B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010041684A DE102010041684A1 (de) 2010-09-29 2010-09-29 Staubsauger und Verfahren zum Betrieb eines Staubsaugers

Publications (3)

Publication Number Publication Date
EP2436294A2 EP2436294A2 (fr) 2012-04-04
EP2436294A3 EP2436294A3 (fr) 2014-03-05
EP2436294B1 true EP2436294B1 (fr) 2015-09-16

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EP11182860.4A Active EP2436294B1 (fr) 2010-09-29 2011-09-27 Aspirateur et procédé destiné au fonctionnement d'un aspirateur

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EP (1) EP2436294B1 (fr)
DE (1) DE102010041684A1 (fr)
ES (1) ES2548530T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016096045A1 (fr) * 2014-12-19 2016-06-23 Aktiebolaget Electrolux Utilisation d'un manostat numérique pour détecter le niveau de remplissage d'un réservoir à poussière
IT201700117795A1 (it) * 2017-10-18 2019-04-18 Erretre Spa Impianto di bottalatura di pelli

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041167A1 (de) * 1980-10-31 1982-05-13 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Staubsauger mit regelung des unterdruckes zwischen dem staubfilter und dem saugwerkzeug
DE102008005150B4 (de) 2008-01-18 2013-09-26 BSH Bosch und Siemens Hausgeräte GmbH Staubsauger und Verfahren zum Betreiben eines Staubsaugers
DE102008010068B4 (de) * 2008-02-20 2013-02-28 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zur automatischen Saugleistungsregelung eines Staubsaugers

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ES2548530T3 (es) 2015-10-19
DE102010041684A1 (de) 2012-03-29
EP2436294A3 (fr) 2014-03-05
EP2436294A2 (fr) 2012-04-04

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