EP2383383A1 - Method for operating a washing machine and washing machine - Google Patents

Method for operating a washing machine and washing machine Download PDF

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Publication number
EP2383383A1
EP2383383A1 EP11401057A EP11401057A EP2383383A1 EP 2383383 A1 EP2383383 A1 EP 2383383A1 EP 11401057 A EP11401057 A EP 11401057A EP 11401057 A EP11401057 A EP 11401057A EP 2383383 A1 EP2383383 A1 EP 2383383A1
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Prior art keywords
sensor
tub
machine
washing machine
sensors
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EP11401057A
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German (de)
French (fr)
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EP2383383B1 (en
Inventor
Marion Fechler
Dirk Sieding
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Miele und Cie KG
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Miele und Cie KG
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Publication of EP2383383A1 publication Critical patent/EP2383383A1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices

Definitions

  • the invention relates to a method for operating a washing machine with a housing and a tub disposed therein for receiving washing liquid for treating laundry, wherein a sensor arrangement for detecting a water level is disposed within the tub.
  • the laundry For washing laundry in a drum washing machine, the laundry is moved in the rotating drum, whereby the wetting of the laundry with the washing liquid and the washing mechanism are effected. In this case, there is water in the tub or in the drum, wherein the dirt is flushed out by the movement of the laundry.
  • the laundry After the washing and rinsing phases, the laundry is usually dewatered by a spin phase in which the drum is rotated at a speed at which the laundry rests against the drum shell and by centrifugal effect, the water from the laundry penetrates. For the proper operation of the washing machine, it is necessary that the machine is aligned exactly in the correct operating position.
  • the Panasonic National NA-VR 1100 as an alignment aid to a display means of a spirit level, a so-called “dragonfly", which is attached to the housing and must be considered by the user when setting up.
  • the known display which includes a bubble in a liquid, is not always clearly legible.
  • the handling when setting up is cumbersome, because on the one hand to make adjustments to the underside of the machine on the height-adjustable feet and on the other hand, the display means must be observed at the top.
  • the invention is therefore based on the object to provide a method that provides good assistance for the exact alignment of the washing machine in the operating position.
  • the main advantage of the method according to the invention is that with simple sensors in the washing machine, the orientation of the washing machine can be detected, so that the user is reliably informed on the basis of the detected position as soon as the machine has reached the exact operational installation position.
  • an initial program must be started, which constantly determines the position of the machine, while the user aligns the machine by changing the height-adjustable feet.
  • the sensor arrangement comprises at least two sensors, wherein a first sensor is mounted at a distance from a second sensor on or in the tub, wherein the predetermined amount of water is such that with exact alignment of the machine, both sensors just below the Water surface are located and protrudes at inadequate alignment of at least one of the sensors above the water surface. Due to the spaced arrangement an accurate detection of the always horizontally aligning water surface is possible with respect to the machine.
  • the sensor arrangement comprises four sensors which are each mounted at a distance from each other on or in the tub, wherein the predetermined amount of water is such that with exact alignment of the machine, all sensors are below the water surface and at least one inexact alignment Sensor is located above the water surface.
  • step c it is expedient to provide the message by means of a display or a light display in step c).
  • an already existing display can be used in the initial phase for the alignment.
  • the message is output in step c) by means of an acoustic output.
  • This can also be done in combination with the message on the display.
  • the user does not need to constantly watch the display as he makes adjustments to the bottom of the washing machine on his feet. Once the machine reaches the exact orientation, an audible signal, such as sound or sound, is emitted which the user can easily perceive.
  • step b) during the orientation of the machine, a continuous message to the user with directional information is provided as an indication of the orientation of the machine.
  • directional information can be different sounds or speech issues. So the user constantly hears on which foot he has to screw to reach the proper orientation of the washing machine.
  • the water can be used for machine cleaning or it is pumped out so that the machine is available for its intended use.
  • the invention further relates to a washing machine having a housing and a tub disposed therein for receiving washing liquid for treating laundry, a horizontally or inclined rotatably mounted drum in the tub, a motor for rotating the drum, a radiator, and a control device for controlling a selected Washing program, a sensor arrangement for detecting a water level within the tub, and further an output device for outputting messages to the user, wherein the control device is configured to determine an orientation of the machine in the operating position and a statement based on the determined result by means of Generate output device.
  • the control device which is advantageously a microprocessor with a Memory means and a computer program stored therein, programmed so that the method described above can be performed.
  • the sensor device comprises at least two sensors, wherein the first sensor is mounted on one side close to the tub bottom or on the tub bottom and the second sensor close to the tub cap or on the tub cap.
  • the sensors are mounted on the maximum possible distance from each other on or in the tub, whereby a very accurate detection of the position of the water surface relative to the tub is possible.
  • the sensor device comprises four sensors, the first sensor and the third sensor being mounted on one side close to the suds container cap or on the suds container cap, and the second sensor and the fourth sensor being close to the suds container bottom or on the suds container bottom, the first one Sensor to the third sensor and the second sensor to the fourth sensor are arranged spaced.
  • the sensors comprise electrodes or optical means for detecting the water surface. These sensors are very reliable and inexpensive to procure.
  • the output device is expedient to form the output device as a display or as a light indicator.
  • These types of displays are already present on most washing machines for the display of parameters or states anyway.
  • the output device comprises an acoustic output device, such as a loudspeaker.
  • the acoustic support facilitates the alignment process for the user or service person.
  • Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2.
  • the position and direction data relate to the operational installation position of the washing machine 1.
  • a rotatably mounted and driven by an electric motor 13 drum 3 is arranged, the laundry items located in a washing process in the tub 2 moves.
  • the drum 3 is made in the present embodiment of stainless steel and provided with a plurality of openings for the flooding.
  • the housing 4 has a loading opening 9, via which the interior of the drum 3 can be reached through the sealing sleeve 6.
  • the loading opening 9 can be closed by means of a door 5.
  • a radiator 7 is arranged, which can heat the washing liquid in the tub.
  • an inlet valve 15 is sketched, which provides the running in of the water from the supply network.
  • the water is passed through the connecting pipe 14 in the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2.
  • a drain device 12 is arranged, which leads the spent washing liquid or the rinse water from the tub 2 to the drain line 12c, which usually opens into a sewer.
  • the control device 18 controls the inlet valve 15, the activity of the drain device 12, the drive motor 13, which is energized via the power unit or a frequency converter 16, and the radiator 7th
  • Fig. 1 is also shown that the level of the washing liquid 19 is just below the drum 3, so that it does not come into contact with water. Furthermore, it can be seen that at the level G, the first sensor 17a and the second sensor 17b are located at or below the water surface 19, as occurs for an exact alignment of the machine in the upright installation position.
  • the signals detected by the two sensors are supplied to the control device 18, which determines the exact alignment on the basis of the sensor values and accordingly outputs a predetermined information to the user by means of an output device, in this case a display 18a.
  • an output device in this case a display 18a.
  • a pressure sensor 17b By means of a pressure sensor 17b, the water level and pressure fluctuations with moving drum is detected.
  • the intake valve 15 is controlled by the controller 18 in response to these detected values of the sensors 17a, 17b configured as level sensors and the pressure sensor 8.
  • Fig. 2 shows in a schematic view of the tub 2, are attached to the four sensors.
  • the sensors are each arranged at a distance from each other, so that an accurate detection of the horizontal water surface 19 is made possible almost at its outer contour 19a.
  • the above-mentioned method can also be used for level control for other phases of the washing process, for example for supplying the fresh water for the Washing phase or rinsing phase.
  • the method can also be used to accurately meter the amount of water for steam production.

Abstract

The method involves inserting a predetermined amount of water in a suds container (2). The alignment of the washing machine (1) is assessed by a sensor assembly with the help of the detected surface of the inserted water. The sensor assembly is arranged within the suds container. A notification to the user takes place after obtaining the predetermined alignment in the setup position of the machine. An independent claim is also included for a washing machine with a drum.

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Waschmaschine mit einem Gehäuse und einem darin angeordneten Laugenbehälter zur Aufnahme von Waschflüssigkeit zum Behandeln von Wäsche, wobei innerhalb des Laugenbehälters eine Sensoranordnung zur Erfassung eines Wasserstandes angeordnet ist.The invention relates to a method for operating a washing machine with a housing and a tub disposed therein for receiving washing liquid for treating laundry, wherein a sensor arrangement for detecting a water level is disposed within the tub.

Zum Waschen von Wäsche in einer Trommelwaschmaschine wird die Wäsche in der drehenden Trommel bewegt, wodurch die Benetzung bzw. Durchfeuchtung der Wäsche mit der Waschflüssigkeit und die Waschmechanik bewirkt werden. Hierbei befindet sich Wasser im Laugenbehälter bzw. in der Trommel, wobei durch die Bewegung der Wäsche der Schmutz ausgespült wird. Nach den Wasch- und Spülphasen wird die Wäsche meistens durch eine Schleuderphase entwässert, in dem die Trommel mit einer Drehzahl gedreht wird, bei der die Wäsche am Trommelmantel anliegt und durch Zentrifugalwirkung das Wasser aus der Wäsche herausdringt. Für den ordnungsgemäßen Betrieb der Waschmaschine ist es notwendig, dass die Maschine exakt in die betriebsgemäße Aufstellposition ausgerichtet ist. Hierzu bietet die Panasonic National NA-VR 1100 als Ausrichthilfe ein Anzeigemittel einer Wasserwaage an, eine sogenannte "Libelle", die am Gehäuse angebracht ist und vom Benutzer beim Aufstellen betrachtet werden muss. Die bekannte Anzeige, die eine Luftblase in einer Flüssigkeit umfasst, ist jedoch nicht immer eindeutig ablesbar. Ferner ist die Handhabung beim Aufstellen umständlich, da einerseits an der Unterseite der Maschine an den höhenverstellbaren Füßen Einstellungen vorzunehmen sind und andererseits an der Oberseite das Anzeigemittel beobachtet werden muss.For washing laundry in a drum washing machine, the laundry is moved in the rotating drum, whereby the wetting of the laundry with the washing liquid and the washing mechanism are effected. In this case, there is water in the tub or in the drum, wherein the dirt is flushed out by the movement of the laundry. After the washing and rinsing phases, the laundry is usually dewatered by a spin phase in which the drum is rotated at a speed at which the laundry rests against the drum shell and by centrifugal effect, the water from the laundry penetrates. For the proper operation of the washing machine, it is necessary that the machine is aligned exactly in the correct operating position. For this purpose, the Panasonic National NA-VR 1100 as an alignment aid to a display means of a spirit level, a so-called "dragonfly", which is attached to the housing and must be considered by the user when setting up. However, the known display, which includes a bubble in a liquid, is not always clearly legible. Furthermore, the handling when setting up is cumbersome, because on the one hand to make adjustments to the underside of the machine on the height-adjustable feet and on the other hand, the display means must be observed at the top.

Aus der US 2003 / 0 037 383 A1 ist es bekannt, die Ausrichtung einer Waschmaschine mittels eines Beschleunigungssensors anzuzeigen. Hierbei wird anhand des Sensorsignals die Lage auf einem Display angezeigt.From the US 2003/0 037 383 A1 It is known to indicate the orientation of a washing machine by means of an acceleration sensor. In this case, the position is displayed on a display based on the sensor signal.

Aus der DE 101 39 388 A1 ist es bekannt, anhand einer Temperarturerfassung innerhalb eines abgeschlossenen Raumes eine Erfassung oder Erkennung von Unwuchten durchgeführt wird.From the DE 101 39 388 A1 It is known that detection or detection of imbalances is carried out on the basis of a temperature detection within a closed space.

Um eine vorbestimmte Wassermenge zum Waschen und Spülen in den Laugenbehälter einzulassen, ist es aus der DE 41 38 636 A1 bekannt, anhand des Drucksignals eines Drucksensors die in den Laugenbehälter eingelassene Wassermenge zu erfassen. Anhand des zeitlichen Druckverlaufs wird der Wassereinlauf gesteuert. Für die Erfassung von sehr kleinen Wassermengen, bezogen auf die Wassermenge, die zu Waschen verwendet wird, ist dieses Verfahren zu ungenau.To admit a predetermined amount of water for washing and rinsing in the tub, it is from the DE 41 38 636 A1 known to detect the amount of water taken into the tub on the basis of the pressure signal of a pressure sensor. Based on the temporal pressure curve of the water inlet is controlled. For the capture of very small amounts of water, based on the amount of water used for washing, this method is too imprecise.

Aus der EP 1 507 031 B1 ist es bekannt, in einem separaten Behälter zur Dampferzeugung den Wasserstand mit Hilfe eines Wasserpegelsensors zu erfassen, der mehrere sogenannte Stabelektroden enthält, die je nach Länge für jeweils einen vorgegebenen Pegel bestimmt sind.From the EP 1 507 031 B1 It is known to detect the water level in a separate container for generating steam by means of a water level sensor which contains a plurality of so-called stick electrodes, which are determined depending on the length for each of a predetermined level.

Der Erfindung liegt deshalb die Aufgabe zu Grunde, ein Verfahren bereitzustellen, das eine gute Hilfestellung zum exakten Ausrichten der Waschmaschine in die betriebsgemäße Aufstellposition bietet.The invention is therefore based on the object to provide a method that provides good assistance for the exact alignment of the washing machine in the operating position.

Die Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 und durch eine Waschmaschine mit den Merkmalen des Anspruchs 7 gelöst. Vorteilhafte Ausführungen ergeben sich aus den jeweils abhängigen Ansprüchen.The object is achieved by a method having the features of claim 1 and by a washing machine having the features of claim 7. Advantageous embodiments will be apparent from the respective dependent claims.

Der wesentliche Vorteil des erfindungsgemäßen Verfahrens ist, dass mit einfachen Sensoren in der Waschmaschine die Ausrichtung der Waschmaschine erfasst werden kann, so dass anhand der erfassten Lage dem Benutzer zuverlässig mitgeteilt wird, sobald die Maschine die exakte betriebsgemäße Aufstellposition erreicht hat. So muss beim Aufstellen der Maschine nur ein Initialprogramm gestartet werden, das ständig die Lage der Maschine ermittelt, während der Benutzer durch Veränderung der höhenverstellbaren Füße die Maschine ausrichtet.The main advantage of the method according to the invention is that with simple sensors in the washing machine, the orientation of the washing machine can be detected, so that the user is reliably informed on the basis of the detected position as soon as the machine has reached the exact operational installation position. Thus, when setting up the machine only an initial program must be started, which constantly determines the position of the machine, while the user aligns the machine by changing the height-adjustable feet.

Das erfindungsgemäße Verfahren umfasst hierzu eine Initialphase, in der

  1. a) eine vorbestimmte Menge Wasser in den Laugenbehälter eingelassen wird, und
  2. b) anschließend anhand der Lage der erfassten Oberfläche des eingelassenen Wassers mittels der Sensoranordnung die Ausrichtung der Waschmaschine beurteilt wird,
  3. c) wobei beim Erreichen der vorgegeben Ausrichtung in die betriebsgemäße Aufstellposition der Maschine eine Mitteilung an den Benutzer erfolgt.
For this purpose, the method according to the invention comprises an initial phase in which
  1. a) a predetermined amount of water is introduced into the tub, and
  2. b) the orientation of the washing machine is subsequently assessed on the basis of the position of the detected surface of the introduced water by means of the sensor arrangement,
  3. c) wherein upon reaching the predetermined orientation in the operational installation position of the machine is a message to the user.

Hierbei ist es zweckmäßig, dass die Sensoranordnung zumindest zwei Sensoren umfasst, wobei ein erster Sensor beabstandet von einem zweiten Sensor am oder im Laugenbehälter angebracht ist, wobei die vorgegebene Menge Wasser so bemessen ist, dass bei exakter Ausrichtung der Maschine sich beide Sensoren soeben unterhalb der Wasseroberfläche befinden und bei nicht exakter Ausrichtung zumindest einer der Sensoren oberhalb der Wasseroberfläche herausragt. Durch die beabstandete Anordnung ist eine genaue Erfassung der sich stets waagerecht ausrichtenden Wasseroberfläche in Bezug auf die Maschine möglich.Here, it is expedient that the sensor arrangement comprises at least two sensors, wherein a first sensor is mounted at a distance from a second sensor on or in the tub, wherein the predetermined amount of water is such that with exact alignment of the machine, both sensors just below the Water surface are located and protrudes at inadequate alignment of at least one of the sensors above the water surface. Due to the spaced arrangement an accurate detection of the always horizontally aligning water surface is possible with respect to the machine.

In einer vorteilhaften Weiterbildung umfasst die Sensoranordnung vier Sensoren, die jeweils beabstandet voneinander am oder im Laugenbehälter angebracht sind, wobei die vorgegebene Menge Wasser so bemessen ist, dass bei exakter Ausrichtung der Maschine sich alle Sensoren unterhalb der Wasseroberfläche befinden und bei nicht exakter Ausrichtung zumindest ein Sensor sich oberhalb der Wasseroberfläche befindet. Dadurch können alle Neigerichtungen, sehr genau erfasst werden, so dass eine exakte Ausrichtung sowohl seitlich als auch front- oder rückseitig bereitgestellt wird.In an advantageous development, the sensor arrangement comprises four sensors which are each mounted at a distance from each other on or in the tub, wherein the predetermined amount of water is such that with exact alignment of the machine, all sensors are below the water surface and at least one inexact alignment Sensor is located above the water surface. As a result, all directions Neigeichtungen can be detected very accurately, so that an exact alignment is provided both side and front or back.

Insgesamt ist es zweckmäßig, im Schritt c) die Mitteilung mittels eines Displays oder einer Leuchtanzeige bereitzustellen. Damit kann ein ohnehin vorhandenes Display in der Initialphase für das Ausrichten genutzt werden.Overall, it is expedient to provide the message by means of a display or a light display in step c). Thus, an already existing display can be used in the initial phase for the alignment.

In einer zweckmäßigen Ausführung erfolgt im Schritt c) die Mitteilung mittels einer akustischen Ausgabe. Dies kann auch in Kombination mit der Mitteilung über das Display erfolgen. Dadurch braucht der Benutzer nicht ständig das Display zu beobachten, während er am Boden der Waschmaschine an den Füßen Einstellungen vornimmt. Sobald die Maschine die exakte Ausrichtung erreicht, wird ein akustisches Signal, beispielsweis ein Ton oder ein Klang ausgegeben, den der Benutzer leicht wahrnehmen kann.In an expedient embodiment, the message is output in step c) by means of an acoustic output. This can also be done in combination with the message on the display. As a result, the user does not need to constantly watch the display as he makes adjustments to the bottom of the washing machine on his feet. Once the machine reaches the exact orientation, an audible signal, such as sound or sound, is emitted which the user can easily perceive.

In einer vorteilhaften Weiterbildung erfolgt im Schritt b) während der Ausrichtung der Maschine eine ständige Mitteilung an den Benutzer mit Richtungsangaben als Hinweis zur Ausrichtung der Maschine. Dies können unterschiedliche Klänge oder Sprachausgaben sein. So hört der Benutzer ständig, an welchem Fuß er schrauben muss, um die betriebsgemäße Ausrichtung der Waschmaschine zu erreichen.In an advantageous development, in step b), during the orientation of the machine, a continuous message to the user with directional information is provided as an indication of the orientation of the machine. These can be different sounds or speech issues. So the user constantly hears on which foot he has to screw to reach the proper orientation of the washing machine.

Nach Beendigung der Ausrichtung kann das Wasser zur Maschinenreinigung verwendet werden oder es wird abgepumpt, so dass die Maschine für die bestimmungsgemäße Benutzung zur Verfügung steht.After completion of the alignment, the water can be used for machine cleaning or it is pumped out so that the machine is available for its intended use.

Die Erfindung betrifft ferner eine Waschmaschine mit einem Gehäuse und einem darin angeordneten Laugenbehälter zur Aufnahme von Waschflüssigkeit zum Behandeln von Wäsche, einer im Laugenbehälter horizontal oder geneigt drehbar gelagerten Trommel, einem Motor zum Drehen der Trommel, einem Heizkörper, und einer Steuereinrichtung zum Steuern eines ausgewählten Waschprogramms, einer Sensoranordnung zur Erfassung eines Wasserstandes innerhalb des Laugenbehälters, und ferner einer Ausgabeeinrichtung zur Ausgabe von Mitteilungen an den Benutzer, wobei die Steuereinrichtung dafür konfiguriert ist, eine Ausrichtung der Maschine in die betriebsgemäße Aufstellposition zu ermitteln und eine Mitteilung anhand des ermittelten Ergebnisses mittels der Ausgabeeinrichtung zu erzeugen. Somit ist die Steuereinrichtung, die vorteilhafterweise einen Mikroprozessor mit einem Speichermittel und einem darin gespeicherten Computerprogramm umfasst, so programmiert, dass das oben beschriebene Verfahren durchgeführt werden kann.The invention further relates to a washing machine having a housing and a tub disposed therein for receiving washing liquid for treating laundry, a horizontally or inclined rotatably mounted drum in the tub, a motor for rotating the drum, a radiator, and a control device for controlling a selected Washing program, a sensor arrangement for detecting a water level within the tub, and further an output device for outputting messages to the user, wherein the control device is configured to determine an orientation of the machine in the operating position and a statement based on the determined result by means of Generate output device. Thus, the control device, which is advantageously a microprocessor with a Memory means and a computer program stored therein, programmed so that the method described above can be performed.

In einer vorteilhaften Ausführung umfasst die Sensoreinrichtung zumindest zwei Sensoren, wobei der erste Sensor an einer Seite nah zum Laugenbehälterboden oder an dem Laugenbehälterboden und der zweitem Sensor nah zur Laugenbehälterkappe bzw. an der Laugenbehälterkappe angebracht ist. Somit sind die Sensoren auf den maximal möglichen Abstand zueinander am oder im Laugenbehälter angebracht, wodurch eine sehr genaue Erfassung der Lage der Wasseroberfläche relativ zum Laugenbehälter möglich ist.In an advantageous embodiment, the sensor device comprises at least two sensors, wherein the first sensor is mounted on one side close to the tub bottom or on the tub bottom and the second sensor close to the tub cap or on the tub cap. Thus, the sensors are mounted on the maximum possible distance from each other on or in the tub, whereby a very accurate detection of the position of the water surface relative to the tub is possible.

In einer vorteilhaften Weiterbildung umfasst die Sensoreinrichtung vier Sensoren, wobei der erste Sensor und der dritte Sensor an einer Seite nah zur Laugenbehälterkappe oder an der Laugenbehälterkappe und der zweite Sensor und der vierte Sensor nah zum Laugenbehälterboden bzw. an dem Laugenbehälterboden angebracht ist, wobei der erste Sensor zum dritten Sensor und der zweite Sensor zum vierten Sensor beabstandet angeordnet sind. Durch die Auswertung der erfassten Werte aller vier Sensoren ist eine noch genauere Bestimmung der Lage der Waschmaschine möglich.In an advantageous development, the sensor device comprises four sensors, the first sensor and the third sensor being mounted on one side close to the suds container cap or on the suds container cap, and the second sensor and the fourth sensor being close to the suds container bottom or on the suds container bottom, the first one Sensor to the third sensor and the second sensor to the fourth sensor are arranged spaced. By evaluating the recorded values of all four sensors, an even more accurate determination of the position of the washing machine is possible.

In einer zweckmäßigen Ausführung umfassen die Sensoren Elektroden oder optische Mittel zur Erfassung der Wasseroberfläche. Diese Sensoren sind sehr zuverlässig und preiswert zu beschaffen.In an expedient embodiment, the sensors comprise electrodes or optical means for detecting the water surface. These sensors are very reliable and inexpensive to procure.

Insgesamt ist es zweckmäßig, die Ausgabeeinrichtung als Display oder als eine Leuchtanzeige auszubilden. Diese Arten von Anzeigen sind ohnehin bei den meisten Waschmaschinen für die Anzeige von Parametern oder Zuständen vorhanden.Overall, it is expedient to form the output device as a display or as a light indicator. These types of displays are already present on most washing machines for the display of parameters or states anyway.

In einer vorteilhaften Weiterbildung umfasst die Ausgabeeinrichtung ein akustisches Ausgabemittel, wie einen Lautsprecher. Die akustische Unterstützung erleichtert dem Benutzer bzw. der Serviceperson den Ausrichtvorgang.In an advantageous development, the output device comprises an acoustic output device, such as a loudspeaker. The acoustic support facilitates the alignment process for the user or service person.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen

Fig. 1:
eine Waschmaschine in einer skizzierten Schnittdarstellung und
Fig. 2:
eine skizzierte perspektivische Ansicht des Laugenbehälters.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it
Fig. 1:
a washing machine in a sketched sectional view and
Fig. 2:
a sketched perspective view of the tub.

In Fig. 1 ist in rein schematischer Darstellung eine Waschmaschine 1, mit einem Laugenbehälter 2 dargestellt. Die Positions- und Richtungsangaben beziehen sich auf die betriebsgemäße Aufstellposition der Waschmaschine 1. Innerhalb des Laugenbehälters 2 ist eine drehbar gelagerte und über einen elektrischen Motor 13 angetriebene Trommel 3 angeordnet, die bei einem Waschgang im Laugenbehälter 2 befindliche Wäschestücke bewegt. Die Trommel 3 ist im vorliegenden Ausführungsbeispiel aus Edelstahl hergestellt und mit einer Vielzahl an Öffnungen für die Durchflutung versehen. Das Gehäuse 4 hat eine Beladungsöffnung 9, über die das Innere der Trommel 3 durch die Dichtungsmanschette 6 hindurch erreichbar ist. Die Beladungsöffnung 9 ist mittels einer Tür 5 verschließbar. Im unteren Bereich des Laugenbehälters 2 ist ein Heizkörper 7 angeordnet, der die Waschflüssigkeit im Laugenbehälter erhitzen kann. Im oberen Bereich der Maschine 1 ist ein Einlassventil 15 skizziert, welches das Einlaufen des Wassers aus dem Versorgungsnetz bereitstellt. Über den Einspülkasten 11 wird das Wasser über das Verbindungsrohr 14 in den Laugenbehälter 2 geleitet, wobei im Einspülkasten 11 eingegebenes Waschmittel mit in den Laugenbehälter 2 gespült wird. Unterhalb des Laugenbehälters 2 ist eine Ablaufeinrichtung 12 angeordnet, die die verbrauchte Waschflüssigkeit oder das Spülwasser aus dem Laugenbehälter 2 zur Ablaufleitung 12c herausführt, die in der Regel in einen Abwasserkanal mündet. Die Steuereinrichtung 18 steuert das Einlassventil 15, die Aktivität der Ablaufeinrichtung 12 den Antriebsmotor 13, der über das Leistungsteil oder einen Frequenzumrichter 16 bestromt wird, und den Heizkörper 7.In Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2. The position and direction data relate to the operational installation position of the washing machine 1. Within the tub 2 a rotatably mounted and driven by an electric motor 13 drum 3 is arranged, the laundry items located in a washing process in the tub 2 moves. The drum 3 is made in the present embodiment of stainless steel and provided with a plurality of openings for the flooding. The housing 4 has a loading opening 9, via which the interior of the drum 3 can be reached through the sealing sleeve 6. The loading opening 9 can be closed by means of a door 5. In the lower region of the tub 2, a radiator 7 is arranged, which can heat the washing liquid in the tub. In the upper part of the machine 1, an inlet valve 15 is sketched, which provides the running in of the water from the supply network. About the Einspülkasten 11, the water is passed through the connecting pipe 14 in the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2. Below the tub 2, a drain device 12 is arranged, which leads the spent washing liquid or the rinse water from the tub 2 to the drain line 12c, which usually opens into a sewer. The control device 18 controls the inlet valve 15, the activity of the drain device 12, the drive motor 13, which is energized via the power unit or a frequency converter 16, and the radiator 7th

In Fig. 1 ist ferner dargestellt, dass sich der Pegel der Waschflüssigkeit 19 knapp unterhalb der Trommel 3 befindet, so dass diese nicht mit Wasser in Berührung kommt. Ferner ist zu erkennen, dass beim Pegel G der erste Sensor 17a und der zweite Sensor 17b an oder unterhalb der Wasseroberfläche 19 liegt, wie es für eine exakte Ausrichtung der Maschine in der bertriebsgemäßen Aufstellposition vorkommt. Die von den beiden Sensoren erfassten Signale werden der Steuereinrichtung 18 zugeführt, die anhand der Sensorwerte die exakte Ausrichtung ermittelt und entsprechend eine vorbestimmte Information mittels Ausgabeeinrichtung, hier ein Display 18a, an den Benutzer ausgibt. Mittels eines Drucksensors 17b wird der Wasserstand und Druckschwankungen bei bewegter Trommel erfasst. Das Einlassventil 15 wird in Abhängigkeit dieser erfassten Werte der Sensoren 17a, 17b, die als Füllstandsmessfühler ausgebildet sind, und des Drucksensors 8 von der Steuereinrichtung 18 gesteuert.In Fig. 1 is also shown that the level of the washing liquid 19 is just below the drum 3, so that it does not come into contact with water. Furthermore, it can be seen that at the level G, the first sensor 17a and the second sensor 17b are located at or below the water surface 19, as occurs for an exact alignment of the machine in the upright installation position. The signals detected by the two sensors are supplied to the control device 18, which determines the exact alignment on the basis of the sensor values and accordingly outputs a predetermined information to the user by means of an output device, in this case a display 18a. By means of a pressure sensor 17b, the water level and pressure fluctuations with moving drum is detected. The intake valve 15 is controlled by the controller 18 in response to these detected values of the sensors 17a, 17b configured as level sensors and the pressure sensor 8.

Fig. 2 zeigt in einer schematischen Ansicht den Laugenbehälter 2, an den vier Sensoren angebracht sind. Hier befinden sich zwei Sensoren 17a, 17c an der Laugenbehälterkappe 2a und zwei weitere Sensoren 17b und 17d am Laugenbehälterboden 2b. Die Sensoren sind jeweils beabstandet voneinander angeordnet, so dass eine genaue Erfassung der waagerechten Wasseroberfläche 19 nahezu an ihrer Außenkontur 19a ermöglicht wird. Fig. 2 shows in a schematic view of the tub 2, are attached to the four sensors. Here are two sensors 17a, 17c on the tub container cap 2a and two other sensors 17b and 17d on the tub bottom 2b. The sensors are each arranged at a distance from each other, so that an accurate detection of the horizontal water surface 19 is made possible almost at its outer contour 19a.

Das oben genannte Verfahren kann auch zur Wasserstandsregelung für andere Phasen des Waschprozesses verwendet werden, beispielsweise zum Zuführen des Frischwassers für die Waschphase oder Spülphase. Das Verfahren kann auch zur genauen Dosierung der Wassermenge zur Dampferzeugung verwendet werden.The above-mentioned method can also be used for level control for other phases of the washing process, for example for supplying the fresh water for the Washing phase or rinsing phase. The method can also be used to accurately meter the amount of water for steam production.

Claims (12)

Verfahren zum Betreiben einer Waschmaschine (1) mit einem Gehäuse (4) und einem darin angeordneten Laugenbehälter (2) zur Aufnahme von Waschflüssigkeit (19) zum Behandeln von Wäsche, wobei innerhalb des Laugenbehälters (2) eine Sensoranordnung (17) zur Erfassung eines Wasserstandes (G) angeordnet ist, umfassend eine Initialphase, in der a) eine vorbestimmte Menge Wasser in den Laugenbehälter (2) eingelassen wird, und b) anschließend anhand der Lage der erfassten Oberfläche (19) des eingelassenen Wassers mittels der Sensoranordnung (17) die Ausrichtung der Waschmaschine (1) beurteilt wird, c) wobei nach Erreichen der vorgegeben Ausrichtung in die betriebsgemäße Aufstellposition der Maschine (1) eine Mitteilung an den Benutzer erfolgt. Method for operating a washing machine (1) having a housing (4) and a tub (2) arranged therein for receiving washing liquid (19) for treating laundry, wherein inside the tub (2) a sensor arrangement (17) for detecting a water level (G) is arranged, comprising an initial phase, in the a) a predetermined amount of water in the tub (2) is inserted, and b) the orientation of the washing machine (1) is subsequently assessed on the basis of the position of the detected surface (19) of the introduced water by means of the sensor arrangement (17), c) wherein after reaching the predetermined orientation in the operating position of the installation of the machine (1) is a message to the user. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Sensoranordnung zumindest zwei Sensoren (17a. 17b) umfasst, wobei ein erster Sensor (7a) beabstandet von einem zweiten Sensor (17b) am oder im Laugenbehälter (2) angebracht ist, wobei die vorgegebene Menge Wasser so bemessen ist, dass bei exakter Ausrichtung der Maschine (1) sich beide Sensoren (17a, 17b) unterhalb der Wasseroberfläche (19) befinden und bei nicht exakter Ausrichtung zumindest einer der Sensoren (17a, 17b) oberhalb der Wasseroberfläche (19) herausragt.Method according to claim 1,
characterized,
in that the sensor arrangement comprises at least two sensors (17a, 17b), wherein a first sensor (7a) is mounted at a distance from a second sensor (17b) on or in the tub (2), wherein the predetermined amount of water is dimensioned to be more accurate Orientation of the machine (1), both sensors (17a, 17b) are located below the water surface (19) and protrudes above the water surface (19) in the case of inaccurate alignment of at least one of the sensors (17a, 17b). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Sensoranordnung vier Sensoren (17a, 17b, 17c, 17d) umfasst, die jeweils beabstandet voneinander am oder im Laugenbehälter (2) angebracht sind, wobei die vorgegebene Menge Wasser so bemessen ist, dass bei exakter Ausrichtung der Maschine (1) sich alle Sensoren (17a, 17b, 17c, 17d) unterhalb der Wasseroberfläche (19) befinden und bei nicht exakter Ausrichtung zumindest ein Sensor (17a, 17b, 17c, 17d) oberhalb der Wasseroberfläche herausragt.Method according to claim 1,
characterized,
in that the sensor arrangement comprises four sensors (17a, 17b, 17c, 17d), which are each mounted at a distance from one another on or in the tub (2), the predetermined amount of water being such that with exact alignment of the machine (1) all Sensors (17a, 17b, 17c, 17d) are located below the water surface (19) and at least one sensor (17a, 17b, 17c, 17d) protrudes above the water surface in the case of inaccurate alignment. Verfahren nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet,
dass im Schritt c) die Mitteilung mittels eines Displays (18a) oder einer Leuchtanzeige erfolgt.Method according to claim 1, 2 or 3,
characterized,
that in step c) the notification is effected by means of a display (18a) or a light-emitting display. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass im Schritt c) die Mitteilung mittels einer akustischen Ausgabe erfolgt.Method according to one of claims 1 to 4,
characterized,
that in step c) the notification takes place by means of an acoustic output. Verfahren nach Anspruch 1, 2 oder 3
dadurch gekennzeichnet,
dass im Schritt b) während der Ausrichtung der Maschine (1) eine ständige Mitteilung an den Benutzer mit Richtungsangaben als Hinweis zur Ausrichtung der Maschine (1) erfolgt.A method according to claim 1, 2 or 3
characterized,
that in step b) during the alignment of the machine (1) is a continuous message to the user with directions as an indication of the orientation of the machine (1). Waschmaschine (1) mit einem Gehäuse (4) und einem darin angeordneten Laugenbehälter (2) zur Aufnahme von Waschflüssigkeit (19) zum Behandeln von Wäsche (8), einer im Laugenbehälter (2) horizontal oder geneigt drehbar gelagerten Trommel (3), einem Motor (13) zum Drehen der Trommel (3), einem Heizkörper (7), und einer Steuereinrichtung (16, 18) zum Steuern eines ausgewählten Waschprogramms, einer Sensoranordnung (17) zur Erfassung eines Wasserstandes (G) innerhalb des Laugenbehälters (2), und ferner einer Ausgabeeinrichtung (18a) zur Ausgabe von Mitteilungen an den Benutzer, wobei die Steuereinrichtung (18) einen Mikroprozessor mit einem Speichermittel und einem darin gespeicherten Computerprogramm umfasst und zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 6 programmiert ist, wodurch die Steuereinrichtung (18) dafür konfiguriert ist, eine Ausrichtung der Maschine (1) in die betriebsgemäße Aufstellposition zu ermitteln und eine Mitteilung anhand des ermittelten Ergebnisses mittels der Ausgabeeinrichtung (18a) zu erzeugen.Washing machine (1) having a housing (4) and a tub (2) arranged therein for receiving washing liquid (19) for treating laundry (8), a drum (3) mounted horizontally or inclined in the tub (2) Motor (13) for rotating the drum (3), a heating element (7), and a control device (16, 18) for controlling a selected washing program, a sensor arrangement (17) for detecting a water level (G) within the tub (2) , and further output means (18a) for issuing messages to the user, the control means (18) comprising a microprocessor having a memory means and a computer program stored therein and programmed to carry out the method of any one of claims 1 to 6, whereby the Control device (18) is configured to determine an orientation of the machine (1) in the operating installation position and a message based on the determined n produce results by means of the output device (18a). Waschmaschine (1) nach Anspruch 7,
dadurch gekennzeichnet
dass die Sensoreinrichtung zumindest zwei Sensoren (17a, 17b) umfasst, wobei der erste Sensor (17a) an einer Seite nah zur Laugenbehälterkappe (2a) oder an der Laugenbehälterkappe (2a) und der zweite Sensor nah zum Laugenbehälterboden (2b) oder an dem Laugenbehälterboden (2b) angebracht ist.Washing machine (1) according to claim 7,
characterized
in that the sensor device comprises at least two sensors (17a, 17b), wherein the first sensor (17a) is close to the suds container cap (2a) or to the suds container cap (2a) and the second sensor is close to the suds container bottom (2b) or to the suds container bottom (2b) is attached. Waschmaschine (1) nach Anspruch 7 oder 8,
dadurch gekennzeichnet
dass die Sensoreinrichtung vier Sensoren (17a, 17b, 17c, 17d) umfasst, wobei der erste Sensor (17a) und der dritte Sensor (17c) an einer Seite nah zur Laugenbehälterkappe (2a) oder an der Laugenbehälterkappe (2a) und der zweite Sensor (17b) und der vierte Sensor (17d) nah zum Laugenbehälterboden (2b) oder an dem Laugenbehälterboden (2b) angebracht ist, wobei der erste Sensor (17a) zum dritten Sensor (17c) und der zweite Sensor (17b) zum vierten Sensor (17d) beabstandet angeordnet ist.Washing machine (1) according to claim 7 or 8,
characterized
in that the sensor device comprises four sensors (17a, 17b, 17c, 17d), wherein the first sensor (17a) and the third sensor (17c) are located on one side close to the suds container cap (2a) or on the suds container cap (2a) and the second sensor (17b) and the fourth sensor (17d) is mounted close to the tub bottom (2b) or to the tub base (2b), wherein the first sensor (17a) to the third sensor (17c) and the second sensor (17b) to the fourth sensor (17b) 17d) is arranged at a distance. Waschmaschine (1) nach Anspruch 8 oder 9,
dadurch gekennzeichnet
dass die Sensoren (17a, 17b, 17c, 17d) Elektroden oder optische Mittel zur Erfassung der Wasseroberfläche (19) umfassenWashing machine (1) according to claim 8 or 9,
characterized
that the sensors (17a, 17b, 17c, 17d) comprise electrodes or optical means for detecting the water surface (19) Waschmaschine (1) nach Anspruch 7,
dadurch gekennzeichnet
dass die Ausgabeeinrichtung ein Display (18a) oder eine Leuchtanzeige umfasst.Washing machine (1) according to claim 7,
characterized
in that the output device comprises a display (18a) or a light display. Waschmaschine (1) nach Anspruch 7,
dadurch gekennzeichnet
dass die Ausgabeeinrichtung ein akustisches Ausgabemittel, wie einen Lautsprecher, umfasst.Washing machine (1) according to claim 7,
characterized
in that the output device comprises an acoustic output device, such as a loudspeaker.
EP11401057A 2010-04-28 2011-04-06 Method for operating a washing machine and washing machine Active EP2383383B1 (en)

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