EP1411164A1 - Method for filling the workspace of a domestic appliance and domestic appliance - Google Patents

Method for filling the workspace of a domestic appliance and domestic appliance Download PDF

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Publication number
EP1411164A1
EP1411164A1 EP03017024A EP03017024A EP1411164A1 EP 1411164 A1 EP1411164 A1 EP 1411164A1 EP 03017024 A EP03017024 A EP 03017024A EP 03017024 A EP03017024 A EP 03017024A EP 1411164 A1 EP1411164 A1 EP 1411164A1
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EP
European Patent Office
Prior art keywords
pump
speed
water
rotational speed
filling
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.)
Granted
Application number
EP03017024A
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German (de)
French (fr)
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EP1411164B1 (en
Inventor
Winfried Steiner
Karlheinz Kohles
Rolf Stahlmann
Stefan Füglein
Klaus-Martin Forst
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Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Publication of EP1411164A1 publication Critical patent/EP1411164A1/en
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Classifications

    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • 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
    • D06F39/088—Liquid supply arrangements

Definitions

  • the invention relates to a method for filling the Working space of a household machine, especially one Dishwasher or washing machine, with water, where the water is pumped into the work area the household machine is promoted. Furthermore concerns the invention a household machine.
  • Household machines such as dishwashers or Washing machines need water to run by means of a pump the working area of the household machine is fed.
  • a pump the working area of the household machine is fed.
  • An exact filling volume of the work area Domestic machine can be achieved in that a static state a certain volume of water that is stored in appropriate tanks in the machine, in the machine runs in (static filling). there can only be a multiple of the tank volume be filled in.
  • Another method uses dynamic Filling water with a predetermined pump speed at which the Filling process by a pressure switch or pressure sensor is monitored. With the help of an impeller counter, the Water flow rate from a pipe measured and thus determined the duration of filling become (dynamic filling).
  • the object of the invention is to propose a method for filling the work space of a generic household machine and a household machine with which it is possible to ensure improved running behavior of the pump; in particular, it is intended to prevent undesired noises from occurring when the pump is operating.
  • this object is achieved in that the rotational speed or speed of the pump is adapted to the inflow speed, that is to say the volume flow per time, of the water in the area upstream of the pump.
  • the rotational speed of the Pump filling the work area from zero to one maximum rotational speed is essentially linear is increased.
  • the course can then in particular the resulting ramp function of the speed of rotation the pump should be selected so that the pump is on sufficient water supply for an operation almost without Air bubbles are available.
  • the course of the function is advantageously determined the speed of rotation of the pump based on the water inlet velocity measured once the area upstream of the pump.
  • the speed of rotation of the pump depending on the Water inlet speed is adjusted by arranged in an area upstream of the pump Inlet velocity measuring element, in particular one Impeller counter, is determined.
  • the household machine in which the work space by means of Pump can be filled, is characterized in that the pump as one in its speed of rotation according to one Predeterminable functional curve of a controllable pump is.
  • Inlet velocity measuring element can be arranged, which for Determination of the feed rate of the water in the Pump is suitable; as inlet speed measuring element an impeller meter is preferably used.
  • Control or regulating means can also be provided be used to control the speed of rotation of the pump are suitable and as an input signal from Inlet velocity measuring element determined inlet velocity receive.
  • Fig. 1 is a household machine 2 in the form of a Washing machine outlined, which has a work space 1, which has to be filled with water for washing.
  • the water is from a faucet 7 via a hose 8 Washer 2 fed.
  • a hose 8 Washer 2 At the end of the hose 8 it will Water through an unspecified pipe section of a pump 3 fed, which is electrically operated. It supports a predeterminable rotational speed or speed n das Water in the work area 1.
  • the pump 3 is designed as a controllable pump, ie the course of the rotational speed n as a function of the time t can be predetermined for the pump 3. This makes it possible to apply a rotational speed-time profile to the pump, as is shown by way of example in FIG. 3.
  • the rotational speed n of the pump 3 is ramped up linearly starting at time zero until a maximum rotational speed n max is reached; there is a "ramp function".
  • a desired start-up behavior ie a desired “ramp function”
  • this takes place as a function of the inflow speed Q of the water in the area 4 upstream of the pump 3, as seen in the flow direction of the water.
  • a critical area 9 is outlined in FIG is to indicate that the pump 3 when the Rotational speed n is ramped up too quickly in the "snorkeling" operation would be what it to avoid according to the invention.
  • the control or regulating means 6 is therefore in the Able to control the pump 3 so that the permissible Operating area is not left, d. H. that in particular the critical area 9 outlined in FIG. 3 is not reached.
  • the feed rate Q can be direct to determine the starting speed or the Spin acceleration of the pump 3 can be used.

Abstract

The method involves supplying water into the working volume (1) of the domestic machine (2) with a pump (3). The revolution rate of the pump is matched to the speed of movement of the water in the region (4) before the pump. The revolution rate of the pump is increased in an essentially linear manner from null to a maximum speed when filling the working volume. AN Independent claim is also included for the following: (a) a domestic machine, especially a dishwasher or a washing machine.

Description

Die Erfindung betrifft ein Verfahren zum Füllen des Arbeitsraumes einer Haushaltsmaschine, insbesondere einer Geschirrspülmaschine oder einer Waschmaschine, mit Wasser, bei dem das Wasser mittels.einer Pumpe in den Arbeitsraum der Haushaltsmaschine gefördert wird. Des weiteren betrifft die Erfindung eine Haushaltsmaschine.The invention relates to a method for filling the Working space of a household machine, especially one Dishwasher or washing machine, with water, where the water is pumped into the work area the household machine is promoted. Furthermore concerns the invention a household machine.

Haushaltsmaschinen, wie Geschirrspülmaschinen oder Waschmaschinen, benötigen für ihren Betrieb Wasser, das mittels einer Pumpe dem Arbeitsraum der Haushaltsmaschine zugeführt wird. Um einer solchen Maschine ausreichend Wasser zur Verfügung zu stellen, sind im Stand der Technik im wesentlichen zwei verschiedene Füllstrategien bekannt:Household machines, such as dishwashers or Washing machines need water to run by means of a pump the working area of the household machine is fed. Sufficient for such a machine Providing water is state of the art essentially two different filling strategies are known:

Ein exaktes Füllvolumen des Arbeitsraumes der Haushalsmaschine kann dadurch erreicht werden, dass man in einem statischen Zustand ein bestimmtes Wasservolumen, das in der Maschine in entsprechenden Tanks bevorratet wird, in die Maschine einlaufen lässt (statisches Füllen). Dabei kann allerdings nur ein Vielfaches des Tankvolumens eingefüllt werden.An exact filling volume of the work area Domestic machine can be achieved in that a static state a certain volume of water that is stored in appropriate tanks in the machine, in the machine runs in (static filling). there can only be a multiple of the tank volume be filled in.

Ein anderes Verfahren bedient sich des dynamischen Wasserfüllens mit vorgegebener Pumpendrehzahl, bei dem der Füllvorgang durch einen Druckwächter oder Drucksensor überwacht wird. Mit Hilfe eines Flügelradzählers kann die Zulaufgeschwindigkeit des Wassers aus einer Leitung gemessen und damit die Zeitdauer des Füllens ermittelt werden (dynamisches Füllen).Another method uses dynamic Filling water with a predetermined pump speed at which the Filling process by a pressure switch or pressure sensor is monitored. With the help of an impeller counter, the Water flow rate from a pipe measured and thus determined the duration of filling become (dynamic filling).

Bekannt ist auch, die beiden vorgenannten Füllstrategien miteinander zu kombinieren.The two aforementioned filling strategies are also known to combine with each other.

Nachteilig ist beim rein statischen Füllen, dass dieses sehr stark von der Durchflussrate des Wassers abhängig ist, was ein genaues bedarfsabhängiges Füllen sehr stark beeinflusst. Befindet sich zuwenig Wasser in der Maschine, zieht die Umwälzpumpe Luft und fährt in einen lauten "schnorchelnden" Betrieb. Füllt man mehr Wasser ein, um dieses Geräusch zu unterbinden, beeinflusst man dadurch andere Betriebsparameter - insbesondere die Verbrauchswerte für Energie und Wasser - in negativer Weise. Ein optimales Füllen ist damit nur selten möglich.The disadvantage of purely static filling is that this is very much dependent on the flow rate of the water, which is an exact need-based filling very strong affected. If there is not enough water in the machine, the circulation pump draws air and runs into a loud one "snorkeling" operation. If you fill in more water to This affects the prevention of this noise other operating parameters - especially the consumption values for energy and water - in a negative way. An optimal one Filling is rarely possible.

Beim dynamischen Füllen benutzt man einen Druckwächter oder Drucksensor, um ein bestimmtes Wasserniveau zu erreichen. Solange der Schaltpunkt einer bestimmten Fülldrehzahl nicht erreicht wurde, bleibt das Wasserventil der Maschine geöffnet. Damit ist die benötigte Wassermenge sehr genau einstellbar.A pressure switch or is used for dynamic filling Pressure sensor to reach a certain water level. As long as the switching point of a certain filling speed is not the machine's water valve remains open. The amount of water required is very precise adjustable.

Allerdings hat diese Füllstrategie folgenden Nachteil:

  • Bekannte Pumpen werden stets nur im Ein/Aus-Betrieb gefahren, d. h. die Pumpe wird immer so angesteuert, dass sie im aktivierten Zustand stets mit ihrer vorgegebenen Maximaldrehzahl arbeitet. Dabei ergibt sich, dass die Pumpe beim Einschalten schneller auf die gewünschte Maximaldrehzahl hoch beschleunigt, als es der Wasserstand für einen nicht "schnorchelnden" Betrieb zulassen würde.
    • However, this filling strategy has the following disadvantage:
  • Known pumps are always operated only in the on / off mode, ie the pump is always controlled in such a way that, in the activated state, it always works at its predetermined maximum speed. The result of this is that the pump accelerates to the desired maximum speed faster than the water level would permit for non-"snorkeling" operation.

    • Dabei einsteht ein unerwünschtes Geräusch, das als sehr störend empfunden wird.There is an undesirable noise, which is very is perceived as disturbing.

    Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zum Füllen des Arbeitsraums einer gattungsgemäßen Haushaltsmaschine sowie eine Haushaltsmaschine vorzuschlagen, mit dem bzw. mit der es möglich ist, ein verbessertes Laufverhalten der Pumpe sicherzustellen; insbesondere soll verhindert werden, dass unerwünschte Geräusche beim Betrieb der Pumpe entstehen.Proceeding from this, the object of the invention is to propose a method for filling the work space of a generic household machine and a household machine with which it is possible to ensure improved running behavior of the pump; in particular, it is intended to prevent undesired noises from occurring when the pump is operating.

    Die Lösung dieser Aufgabe durch die Erfindung ist verfahrensgemäß dadurch gekennzeichnet, dass die Drehgeschwindigkeit bzw. Drehzahl der Pumpe der Zulaufgeschwindigkeit, also dem Volumenstrom pro Zeit, des Wassers in den der Pumpe vorgelagerten Bereich angepasst wird.According to the method, this object is achieved in that the rotational speed or speed of the pump is adapted to the inflow speed, that is to say the volume flow per time, of the water in the area upstream of the pump.

    Bevorzugt ist vorgesehen, dass die Drehgeschwindigkeit der Pumpe beim Füllen des Arbeitsraumes von Null bis zu einer maximalen Drehgeschwindigkeit im wesentlichen linear gesteigert wird. Dabei kann dann insbesondere der Verlauf der sich ergebenden Rampenfunktion der Drehgeschwindigkeit der Pumpe so gewählt werden, dass der Pumpe ein ausreichendes Wasserangebot für einen Betrieb nahezu ohne Luftblasen zur Verfügung steht.It is preferably provided that the rotational speed of the Pump filling the work area from zero to one maximum rotational speed is essentially linear is increased. The course can then in particular the resulting ramp function of the speed of rotation the pump should be selected so that the pump is on sufficient water supply for an operation almost without Air bubbles are available.

    Mit Vorteil erfolgt die Festlegung des Funktionsverlaufs der Drehgeschwindigkeit der Pumpe unter Zugrundelegung der einmalig gemessenen Zulaufgeschwindigkeit des Wassers in den der Pumpe vorgelagerten Bereich.The course of the function is advantageously determined the speed of rotation of the pump based on the water inlet velocity measured once the area upstream of the pump.

    Weiterhin hat es sich als sehr vorteilhaft erwiesen, dass die Drehgeschwindigkeit der Pumpe in Abhängigkeit der Zulaufgeschwindigkeit des Wassers angepasst wird, die von einem im der Pumpe vorgelagerten Bereich angeordneten Zulaufgeschwindigkeitsmesselement, insbesondere einem Flügelradzähler, ermittelt wird.Furthermore, it has proven to be very advantageous that the speed of rotation of the pump depending on the Water inlet speed is adjusted by arranged in an area upstream of the pump Inlet velocity measuring element, in particular one Impeller counter, is determined.

    Die Haushaltsmaschine, in der der Arbeitsraum mittels der Pumpe befüllt werden kann, zeichnet sich dadurch aus, dass die Pumpe als eine in ihrer Drehgeschwindigkeit gemäß einem vorgebbaren Funktionsverlauf regelbare Pumpe ausgebildet ist.The household machine, in which the work space by means of Pump can be filled, is characterized in that the pump as one in its speed of rotation according to one Predeterminable functional curve of a controllable pump is.

    Dabei kann im der Pumpe vorgelagerten Bereich ein Zulaufgeschwindigkeitsmesselement angeordnet sein, das zur Bestimmung der Zulaufgeschwindigkeit des Wassers in die Pumpe geeignet ist; als Zulaufgeschwindigkeitsmesselement kommt bevorzugt ein Flügelradzähler zum Einsatz.This can be in the area upstream of the pump Inlet velocity measuring element can be arranged, which for Determination of the feed rate of the water in the Pump is suitable; as inlet speed measuring element an impeller meter is preferably used.

    Ferner können Steuerungs- oder Regelungsmittel vorgesehen sein, die zur Ansteuerung der Drehgeschwindigkeit der Pumpe geeignet sind und als Eingangssignal die vom Zulaufgeschwindigkeitsmesselement ermittelte Zulaufgeschwindigkeit erhalten.Control or regulating means can also be provided be used to control the speed of rotation of the pump are suitable and as an input signal from Inlet velocity measuring element determined inlet velocity receive.

    In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:

    Fig. 1
    schematisch eine Waschmaschine in der Vorderansicht,
    Fig. 2
    eine zu Fig. 1 alternative Ausgestaltung und
    Fig. 3
    beispielhaft den Verlauf der Drehgeschwindigkeit n der Pumpe über der Zeit t.
    Exemplary embodiments of the invention are shown in the drawing. Show it:
    Fig. 1
    schematically a washing machine in the front view,
    Fig. 2
    an alternative to Fig. 1 and
    Fig. 3
    the course of the speed of rotation n of the pump over time t.

    In Fig. 1 ist eine Haushaltsmaschine 2 in Form einer Waschmaschine skizziert, die einen Arbeitsraum 1 aufweist, der zum Waschen mit Wasser gefüllt werden muss. Das Wasser wird von einem Wasserhahn 7 über einen Schlauch 8 der Waschmaschine 2 zugeführt. Am Ende des Schlauchs 8 wird das Wasser über ein nicht bezeichnetes Rohrstück einer Pumpe 3 zugeleitet, die elektrisch betrieben ist. Sie fördert mit einer vorgebbaren Drehgeschwindigkeit bzw. Drehzahl n das Wasser in den Arbeitsraum 1.In Fig. 1 is a household machine 2 in the form of a Washing machine outlined, which has a work space 1, which has to be filled with water for washing. The water is from a faucet 7 via a hose 8 Washer 2 fed. At the end of the hose 8 it will Water through an unspecified pipe section of a pump 3 fed, which is electrically operated. It supports a predeterminable rotational speed or speed n das Water in the work area 1.

    Zur Vermeidung unerwünschter Geräusche beim Fördern von Wasser durch die Pumpe 3 wird wie folgt vorgegangen:To avoid unwanted noise when conveying Water through pump 3 is operated as follows:

    Zunächst lässt man statisch Wasser bis zum Schaltpunkt eines nicht dargestellten Druckwächters bzw. Drucksensors zulaufen und misst die Zeit bis zum Erreichen desselben. Dadurch ermittelt man eine durch die Festlegung des Schaltpunktes relativ genaue Wassermenge und die zum Füllen dieser Menge benötige Zeit. Hieraus lässt sich wiederum die Zulaufgeschwindigkeit Q (Volumen pro Zeit) des Wassers errechnen.First, static water is left up to the switching point a pressure switch or pressure sensor, not shown run and measure the time to reach it. This determines one by defining the Switching point of relatively precise amount of water and that for filling this amount of time. From this you can in turn Feed rate Q (volume per time) of the water calculate.

    Die Pumpe 3 ist als regelbare Pumpe ausgebildet, d. h. der Verlauf der Drehgeschwindigkeit n als Funktion der Zeit t kann der Pumpe 3 gezielt vorgegeben werden. Damit ist es möglich, die Pumpe mit einem Drehgeschwindigkeits-Zeit-Profil zu beaufschlagen, wie es beispielhaft in Fig. 3 skizziert ist. Wie hier zu erkennen ist, wird die Drehgeschwindigkeit n der Pumpe 3 zum Zeitpunkt Null beginnend linear hochgefahren, bis eine maximale Drehgeschwindigkeit nmax erreicht ist; es ergibt sich eine "Rampenfunktion". Beim Anlauf der Pumpe 3 kann also ein gewünschtes Anlaufverhalten, d. h. eine gewünschte "Rampenfunktion", vorgegeben werden, bis die Zieldrehzahl nmax erreicht ist. Dies erfolgt erfindungsgemäß in Abhängigkeit der Zulaufgeschwindigkeit Q des Wassers in den der Pumpe 3 - in Fließrichtung des Wassers gesehen - vorgelagerten Bereich 4.The pump 3 is designed as a controllable pump, ie the course of the rotational speed n as a function of the time t can be predetermined for the pump 3. This makes it possible to apply a rotational speed-time profile to the pump, as is shown by way of example in FIG. 3. As can be seen here, the rotational speed n of the pump 3 is ramped up linearly starting at time zero until a maximum rotational speed n max is reached; there is a "ramp function". When the pump 3 starts up, a desired start-up behavior, ie a desired “ramp function”, can be specified until the target speed n max is reached. According to the invention, this takes place as a function of the inflow speed Q of the water in the area 4 upstream of the pump 3, as seen in the flow direction of the water.

    Dabei wird die Steigung der in Fig. 3 skizzierten "Anlauframpe" so festgelegt, dass ein kritisches Wasserniveau, bei dem die Pumpe 3 Luft ziehen und fördern würde - was die unerwünschten Geräusche verursacht -, vermieden wird.The slope of the sketched in Fig. 3 "Startup ramp" set so that a critical Water level at which the pump 3 draws and delivers air would - which causes the unwanted noise - is avoided.

    Somit wird der Anstieg der Pumpen-Drehgeschwindigkeit n geräuschoptimiert an die Wasserzulaufgeschwindigkeit Q angepasst.Thus, the increase in pump rotation speed n noise optimized to the water inlet speed Q customized.

    In Fig. 3 ist ein kritischer Bereich 9 skizziert, der andeuten soll, dass die Pumpe 3 dann, wenn die Drehgeschwindigkeit n zu schnell hochgefahren wird, in den "schnorchelnden" Betrieb geraten würde, was es erfindungsgemäß zu vermeiden gilt.A critical area 9 is outlined in FIG is to indicate that the pump 3 when the Rotational speed n is ramped up too quickly in the "snorkeling" operation would be what it to avoid according to the invention.

    In Fig. 2 ist eine weitergehende Ausgestaltung der Erfindung skizziert. Am Ende des Schlauchs 8 ist ein Zulaufgeschwindigkeitsmesselement 5 in Form eines Flügelradzählers angeordnet. Mit diesem kann die. Zulaufgeschwindigkeit Q des Wassers in die Waschmaschine 2 direkt gemessen werden. Das vom Flügelradzähler 5 gemessene Signal für die Zulaufgeschwindigkeit Q wird einem Steuerung- oder Regelungsmittel 6 zugeleitet. In diesem ist der zulässige Funktionsverlauf der Drehgeschwindigkeit n als Funktion der Zeit t in Abhängigkeit der Zulaufgeschwindigkeit Q hinterlegt, d. h. abgespeichert. 2 is a further development of the Invention outlined. At the end of the hose 8 is a Inlet velocity measuring element 5 in the form of a Impeller meter arranged. With this the. Feed rate Q of the water into the washing machine 2 can be measured directly. The measured by the impeller counter 5 Signal for the feed rate Q is one Control or regulating means 6 fed. In this is the permissible function curve of the rotational speed n as a function of time t as a function of Feed rate Q stored, d. H. stored.

    Das Steuerungs- oder Regelungsmittel 6 ist daher in der Lage, die Pumpe 3 so anzusteuern, dass der zulässige Betriebsbereich nicht verlassen wird, d. h. dass insbesondere der in Fig. 3 skizzierte kritische Bereich 9 nicht erreicht wird.The control or regulating means 6 is therefore in the Able to control the pump 3 so that the permissible Operating area is not left, d. H. that in particular the critical area 9 outlined in FIG. 3 is not reached.

    Bei der Ausgestaltung der Drehgeschwindigkeit-Zeit-Funktion gemäß Fig. 3 kann also die Zulaufgeschwindigkeit Q direkt zur Bestimmung der Anlaufgeschwindigkeit bzw. der Drehbeschleunigung der Pumpe 3 verwendet werden. When designing the rotational speed-time function 3, the feed rate Q can be direct to determine the starting speed or the Spin acceleration of the pump 3 can be used.

    BezugszeichenlisteLIST OF REFERENCE NUMBERS

    11
    Arbeitsraumworking space
    22
    Haushaltsmaschine (Geschirrspülmaschine, Waschmaschine)Household machine (dishwasher, Washing machine)
    33
    Pumpepump
    44
    der Pumpe vorgelagerter Bereicharea upstream of the pump
    55
    Flügelradzähler (Zulaufgeschwindigkeitsmesselement)jet impeller (Flow rate measuring element)
    66
    Steuerungs- oder RegelungsmittelControl means
    77
    Wasserhahnwater tap
    88th
    Schlauchtube
    99
    kritischer Bereichcritical area
    n(t)n (t)
    Drehgeschwindigkeit/DrehzahlRotational speed / speed
    tt
    Zeittime
    QQ
    Zulaufgeschwindigkeit (Volumenstrom)Inlet speed (volume flow)
    nmax n max
    maximale Drehgeschwindigkeit/Drehzahlmaximum rotation speed / speed

    Claims (9)

    Verfahren zum Füllen des Arbeitsraumes (1) einer Haushaltsmaschine (2), insbesondere einer Geschirrspülmaschine oder einer Waschmaschine, mit Wasser, bei dem das Wasser mittels einer Pumpe (3) in den Arbeitsraum (1) der Haushaltsmaschine (2) gefördert wird, dadurch gekennzeichnet, dass die Drehgeschwindigkeit (n(t)) der Pumpe (3) der Zulaufgeschwindigkeit (Q) des Wassers in den der Pumpe (3) vorgelagerten Bereich (4) angepasst wird.A method of filling of the working space (1) in a domestic appliance (2), in particular a dishwasher or a washing machine with water, wherein the water is conveyed by means of a pump (3) into the working space (1) of the domestic appliance (2), characterized that the speed of rotation (n (t)) of the pump (3) is adapted to the inflow speed (Q) of the water in the area (4) upstream of the pump (3). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Drehgeschwindigkeit (n(t)) der Pumpe (3) beim Füllen des Arbeitsraumes (1) von Null bis zu einer maximalen Drehgeschwindigkeit (nmax) im wesentlichen linear gesteigert wird.A method according to claim 1, characterized in that the rotational speed (n (t)) of the pump (3) when filling the working space (1) from zero to a maximum rotational speed (n max ) is increased substantially linearly. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass der Verlauf der sich ergebenden Rampenfunktion der Drehgeschwindigkeit (n(t)) der Pumpe (3) so gewählt wird, dass der Pumpe (3) ein ausreichendes Wasserangebot für einen kavitationsfreien Betrieb zur Verfügung steht.A method according to claim 2, characterized in that the course of the resulting ramp function of the rotational speed (n (t)) of the pump (3) is selected so that the pump (3) has sufficient water available for cavitation-free operation. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Festlegung des Funktionsverlaufs der Drehgeschwindigkeit (n(t)) der Pumpe (3) unter Zugrundelegung der einmalig gemessenen Zulaufgeschwindigkeit (Q) des Wassers in den der Pumpe (3) vorgelagerten Bereich (4) erfolgt.Method according to one of claims 1 to 3, characterized in that the definition of the functional profile of the rotational speed (n (t)) of the pump (3) on the basis of the once measured inlet speed (Q) of the water in the area upstream of the pump (3) (4) is done. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Drehgeschwindigkeit (n(t)) der Pumpe (3) in Abhängigkeit der Zulaufgeschwindigkeit (Q) des Wassers angepasst wird, die von einem im der Pumpe (3) vorgelagerten Bereich (4) angeordneten Zulaufgeschwindigkeitsmesselement (5), insbesondere einem Flügelradzähler, ermittelt wird.Method according to one of claims 1 to 4, characterized in that the speed of rotation (n (t)) of the pump (3) is adapted as a function of the inflow speed (Q) of the water, which is from an area () upstream of the pump (3). 4) arranged inlet speed measuring element (5), in particular an impeller counter, is determined. Haushaltsmaschine (2), insbesondere Geschirrspülmaschine oder Waschmaschine, in der ein Arbeitsraum (1) mittels einer Pumpe (3) befüllt werden kann, dadurch gekennzeichnet, dass die Pumpe (3) als eine in ihrer Drehgeschwindigkeit (n(t)) gemäß einem vorgebbaren Funktionsverlauf regelbare Pumpe ausgebildet ist.Household machine (2), in particular dishwasher or washing machine, in which a work space (1) can be filled by means of a pump (3), characterized in that the pump (3) as a rotational speed (n (t)) according to a predeterminable one Functional course adjustable pump is formed. Haushaltsmaschine nach Anspruch 6, dadurch gekennzeichnet, dass im der Pumpe (3) vorgelagerten Bereich (4) ein Zulaufgeschwindigkeitsmesselement (5) angeordnet ist, das zur Bestimmung der Zulaufgeschwindigkeit (Q) des Wassers in die Pumpe (3) geeignet ist.Domestic machine according to claim 6, characterized in that in the area (4) upstream of the pump (3) an inlet speed measuring element (5) is arranged which is suitable for determining the inlet speed (Q) of the water into the pump (3). Haushaltsmaschine nach Anspruch 7, dadurch gekennzeichnet, dass das Zulaufgeschwindigkeitsmesselement (5) ein Flügelradzähler ist.Domestic machine according to claim 7, characterized in that the inlet speed measuring element (5) is an impeller counter. Haushaltsmaschine nach Anspruch 7 oder 8, gekennzeichnet durch Steuerungs- oder Regelungsmittel (6), die zur Ansteuerung der Drehgeschwindigkeit (n(t)) der Pumpe (3) geeignet sind und als Eingangssignal die vom Zulaufgeschwindigkeitsmesselement (5) ermittelte Zulaufgeschwindigkeit (Q) des Wassers erhalten.Domestic machine according to claim 7 or 8, characterized by control or regulating means (6) which are suitable for controlling the rotational speed (n (t)) of the pump (3) and as the input signal the inlet speed (Q) determined by the inlet speed measuring element (5) Water.
    EP03017024A 2002-10-16 2003-07-26 Method for filling the workspace of a domestic appliance and domestic appliance Expired - Fee Related EP1411164B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10248268A DE10248268A1 (en) 2002-10-16 2002-10-16 Method for filling the working space of a household machine and household machine
    DE10248268 2002-10-16

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    EP1411164A1 true EP1411164A1 (en) 2004-04-21
    EP1411164B1 EP1411164B1 (en) 2011-12-21

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    DE (2) DE10248268A1 (en)
    ES (1) ES2378230T3 (en)

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    US10335012B2 (en) 2015-10-19 2019-07-02 Electrolux Home Products, Inc. Dishwasher spray fill

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    DE102011000287B4 (en) * 2011-01-24 2014-09-11 Miele & Cie. Kg Method for adjusting a volume flow delivered by a circulating pump in a water-conducting domestic appliance

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    Cited By (10)

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    EP1783264A2 (en) * 2005-11-04 2007-05-09 Fisher & Paykel Appliances Ltd. Improvements relating to washing machines
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    WO2011032247A3 (en) * 2009-09-18 2011-06-03 Whirlpool S.A. Pressurizer device for a clothes washing machine and clothes washing machine
    US10335012B2 (en) 2015-10-19 2019-07-02 Electrolux Home Products, Inc. Dishwasher spray fill
    US11071436B2 (en) 2015-10-19 2021-07-27 Electrolux Home Products, Inc. Dishwasher spray fill

    Also Published As

    Publication number Publication date
    ES2378230T3 (en) 2012-04-10
    EP1411164B1 (en) 2011-12-21
    DE10248268A1 (en) 2004-04-29
    DE20321884U1 (en) 2012-02-08

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