EP3414387A1 - Domestic appliance and method for operating a domestic appliance - Google Patents

Domestic appliance and method for operating a domestic appliance

Info

Publication number
EP3414387A1
EP3414387A1 EP16819949.5A EP16819949A EP3414387A1 EP 3414387 A1 EP3414387 A1 EP 3414387A1 EP 16819949 A EP16819949 A EP 16819949A EP 3414387 A1 EP3414387 A1 EP 3414387A1
Authority
EP
European Patent Office
Prior art keywords
condensate
level
household appliance
tray
designed
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
EP16819949.5A
Other languages
German (de)
French (fr)
Other versions
EP3414387B1 (en
Inventor
Ralf BÖMMELS
Oliver Despang
Gerhard Pleban
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
Priority to PL16819949T priority Critical patent/PL3414387T3/en
Publication of EP3414387A1 publication Critical patent/EP3414387A1/en
Application granted granted Critical
Publication of EP3414387B1 publication Critical patent/EP3414387B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or pumps
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the present invention relates to a household appliance, in particular a Wäschetrock- ner, and a method for operating a household appliance, in particular for operating a clothes dryer or for monitoring a drying process of a clothes dryer.
  • the filling level of a condensate collecting tank is monitored in order then to generate a signal as an indication for carrying out a condensate removal process when a fill level threshold value is exceeded.
  • this information alone may not be sufficient to allow further safe operation without interrupting the drying process.
  • a domestic appliance in particular a tumble dryer
  • a method for operating a domestic appliance in particular a tumble dryer
  • This object is achieved by a household appliance and by a method according to respective independent claim. Further developments of the invention and optional features will be apparent from the dependent claims and the description and the figures of the accompanying drawing. Developments of the household appliance correspond, unless excluded for technical reasons, developments of the method and vice versa, and this even if it is not explicitly stated herein.
  • a domestic appliance in particular a tumble dryer, comprises a condensate collecting tank and a condensate tray and a control device which is designed to detect a filling level of the condensate collecting tank and / or the condensate tray, wherein the control unit comprises at least one comparison value and wherein the control device is designed to control the or to compare the levels with the at least one comparison value, and wherein the control device is designed on reaching, exceeding or falling below the at least one comparison value to output a discharge time window for the condensate collector.
  • the household appliance is preferably a laundry treatment appliance.
  • the laundry treatment device is z. B. a tumble dryer, for example, an exhaust air dryer, a condensation dryer or a heat pump dryer.
  • the household appliance may also be a combination device, which combines a washing machine function and a dryer function in itself.
  • the household appliance is a device in which condensation occurs.
  • the condensate pan and the condensate collection are provided for collecting the condensate.
  • the condensate tray represents a first collecting vessel, which is permanently installed in the household appliance and which serves the direct / first recording of the condensate.
  • the condensate tray is suitably fluidly connected to the condensate collecting tank, wherein according to a preferred embodiment, the household appliance comprises a pump which is designed to pump the condensate from the condensate tray to the condensate collecting tank.
  • the condensate tray is expediently arranged in a lower part of the domestic appliance, for example below the rotating drum of the dryer, while the condensate collecting container is arranged higher up.
  • the condensate collection container is designed and arranged such that it can be removed and emptied by a user.
  • the control device is expediently an electrical unit which is designed to operate the domestic appliance. According to a preferred embodiment, the control device has corresponding input and output means, via which the household appliance z. B. can be served.
  • a corresponding display device is provided which is intended to display certain information to a user.
  • the control device is designed to detect a level of the condensate collection tank and / or the condensate pan and to calculate on this basis the emptying time window, which indicates, so to speak, the remaining period to the condensate.
  • the detected level or the detected levels are compared with a comparison value, which also represents a certain level.
  • the controller may calculate the discharge time window, ie, the period of time still available to empty the condensate collector.
  • the at least one comparison value is a limit level of the condensate collection tank.
  • the limit level is a level that is below a maximum level of the condensate collection tank.
  • several levels / water levels are preferably measured or detected. If the maximum level of the condensate collection tank is reached, this leads to the termination of the drying process (condensate drop). That is, it may happen that the drying process ends before it is terminated by the sensing of the final moisture content desired by the user. Consequently, if necessary, the desired final moisture content is not reached, which can lead to dissatisfaction with the dry result.
  • the emptying time window now advantageously indicates the period of time within which it is still possible to "react.”
  • the limit level is about 50% to 90%, preferably about 60% to 80% of the maximum fill level of the condensate collection container.
  • the control device is designed to transmit the emptying time window to a user or to send.
  • the control device advantageously comprises a display device or the like.
  • the household appliance or its control device comprises an extended user interface, preferably a mobile terminal.
  • the display can be extended with a down-counting clock to clarify when the possibility of avoiding the delayed error event ends.
  • the down-counting clock corresponds to the emptying time window, ie the period is available until a maximum level of the condensate collection tank is reached.
  • the control device comprises a switching level, which is a filling level of the condensate tray, wherein the control unit is designed to control the pump when the switching level is reached or exceeded.
  • This designation is called “event-controlled.”
  • Event-controlled means that the pump triggers at a certain amount of water, the switching level, so that in the case of "event-driven" pumps, the condensate pump generally operates only when a certain predetermined amount of water is available a predetermined constant capacity works. If the specified amount of water is exceeded, the pump is switched off.
  • the control device is parameterized such that, after the emptying time window has expired, pumping is again carried out and it is checked whether the pumping cycle was successful.
  • the switching level which represents a level of the condensate tray, for example in a range of about 50% to 90% below a maximum level of the condensate tray, suitably in a range of about 60% to 80%.
  • the pump can also be timed. Time-controlled in this case means a control based on predetermined time values z. B. in the program sequence of the household appliance / tumble dryer.
  • the at least one comparison value may be a minimum fill level of the condensate tray. From the condensate tray, if this one specific Level has reached (see switching level), pumped via a pump, the collected or accumulated condensate in the condensate collection tank, which is usually located above the condensate tray.
  • the controller is adapted to recognize if the pumping process was successful. The level is evaluated at a specified time after the pumping cycle. If there is no water, the pumping cycle is considered successful. Otherwise, the cycle was unsuccessful and, for example, the system sends a corresponding error or initiates appropriate measures.
  • the emptying time window can now be started.
  • the condensate tray in particular based on a minimum level of the condensate tray, issued a discharge time window for the condensate collection or started.
  • the minimum level is to be understood as meaning that it is checked whether the condensate tray z. B. is empty. Thus, the conclusion can be drawn whether the pumping cycle was successful.
  • control device comprises a timer, which is designed to control the pump after the emptying time window.
  • the timing circuit thus makes it possible to check whether the pumping cycle was successful.
  • the household appliance comprises a first measuring device, which is designed to detect the fill level of the condensate collecting container, wherein the first measuring device expediently comprises at least two electrodes, which are arranged in the condensate collecting container along a vertical axis at a distance from one another.
  • the measuring device determines the conductance between two electrodes. In the case of two water levels, three electrodes suffice.
  • the first measuring device can also be a continuous measuring system which operates with at least two threshold values.
  • the use of two reed contacts with a float magnet can also be used.
  • the household appliance also includes a second measuring device, which is designed to include the level of the condensate tray. Again, the above possibilities for the realization of the measurement apply.
  • the invention also provides a method for operating a domestic appliance, in particular for monitoring a drying process of a tumble dryer, the household appliance having a condensate collecting tank and a condensate tray, comprising the steps:
  • the minimum length of the emptying time window results from the vertical distance of the measuring points and the maximum condensation speed of the dryer.
  • This design has other advantages that can be used in device operation.
  • One advantage is the separation of the event-driven pumping element from the security element, which initiates fault management.
  • Another advantage is the measurement of the condensation rate. Since the volume between the two measuring points is known, the condensation rate can be calculated over the time between reaching the two water levels. This parameter is dependent on the time within the drying and can be used to harden the identification of the drying phase. Thus, the condensation rate in the so-called plateau phase is constant. Before and after, however, it assumes lower values.
  • the method further comprises the step:
  • the transmission can take place, for example, via a display device of the control device, or via an extended user interface, for example in the form of an app.
  • the method further comprises the step:
  • the two existing storage volumes are used as best as possible. If the condensate collection tank is full, this does not yet have to lead to condensation, as the volume of the condensate tray can still be completely exhausted. Only when both levels have reached their maximum value, the operation of the household appliance, in this case in particular the drying process of the clothes dryer, ended.
  • the emptying time window which refers to the still remaining volume of the condensate collection container still available, can therefore be extended by the volume of the condensate tray, whereby the termination of the drying process can be further delayed.
  • the method further comprises the step:
  • a residual maturity is calculated in advance.
  • This precalculation is expediently based on the condensation rate mentioned.
  • the end of the drying process can expediently be related to the emptying time window or to the length of the emptying time window. If the emptying time window is longer than the period until the end of the drying process or the remaining running time, it is expediently also possible for this information to be transmitted to a user. The user then knows that, at least after the end of the drying process, he should empty the condensate collector, but he also knows that there is no need to do it during operation.
  • the method further comprises the steps: - Pumping condensate from the condensate pan to the condensate collector, when a switching level in the condensate pan is reached or exceeded;
  • the method expediently comprises the step:
  • Figure 1 is a sectional view of a tumble dryer.
  • Fig. 1 shows in a sectional view an embodiment of a household appliance 10, in particular a tumble dryer. Shown in the embodiment shown here is a sectional view through a condensation dryer, this embodiment being only an example.
  • the dryer 10 comprises in its upper region a controller 30, which comprises an operating unit or input / output means 32 and a display device 34.
  • the display device 34 may be formed optically and / or acoustically.
  • the controller is also designed to provide an enhanced user interface in the form of a mobile application such. For example, to include an app.
  • the dryer 10 comprises a rotatably mounted drum 12, which can be filled via a door 16. Process air heated by a heater 68 can flow through a process air channel 14 and through the drum 12.
  • the arrangements tion of an evaporator 62, a condenser 64, a pump 66 and a compressor 70 are basically known from the prior art.
  • the focus is on the condensate tray 40, which is connected via a line 22 to a condensate collecting tank 20 arranged above it. Liquid or condensate can be transported from the condensate tray 40 to the condensate collecting tank 20 via a pump 60.
  • the condensate collector 20 is suitably designed to be interchangeable, so that it can be emptied by a user if necessary.
  • the condensate collecting tank 20 is also arranged in an upper region, for example above the drum 12, for example on a plane or in the region of the control device 30.
  • the control device is now preferably via first and second measuring devices (not shown here) designed to detect the levels of the condensate pan 40 and the condensate collection tank 20.
  • a limit level G in the condensate collection container 20 is indicated in which a discharge time window is started or output. This limit fill level G is below a maximum fill level M at which the condensate collection container 20 should be emptied, at least when the condensate pan 40 is completely filled.
  • a switching level S is indicated, which represents a level of the condensate pan 40, when it reaches or exceeds the pump 60 is driven to transport condensate from the condensate pan 40 to the condensate collection tank 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

A domestic appliance 10, in particular a tumble dryer, comprising a condensate-collecting tank 20 and a condensate drip tray 40 as well as a control device 30, which is designed to sense a filling level of the condensate-collecting tank 20 and/or of the condensate drip tray 40, wherein the control device 30 incorporates at least one comparison value, and wherein the control device 30 is designed to compare the filling level or filling levels with the at least one comparison value, and wherein the control device 30 is designed so that, when the filling level reaches, exceeds or falls below the at least one comparison value, the control device gives out a time slot for emptying the condensate-collecting tank 20.

Description

Haushaltsgerät und Verfahren zum Betreiben eines  Household appliance and method for operating a
Haushaltsgeräts  household appliance
Die vorliegende Erfindung betrifft ein Haushaltsgerät, insbesondere einen Wäschetrock- ner, sowie ein Verfahren zum Betreiben eines Haushaltsgeräts, insbesondere zum Betreiben eines Wäschetrockners bzw. zum Überwachen eines Trocknungsprozesses eines Wäschetrockners. The present invention relates to a household appliance, in particular a Wäschetrock- ner, and a method for operating a household appliance, in particular for operating a clothes dryer or for monitoring a drying process of a clothes dryer.
Es gibt in einem Haushaltswäschetrocknern einen Fehler, der einen Trocknungsprozess vorzeitig abbricht, nämlich einen sogenannten „Kondensatfall". Dabei führt ein als voll erkannter Kondensatbehälter zum Abbruch des Trocknungsprozesses, bevor dieser durch die Sensierung der vom Benutzer gewünschten Endrestfeuchte beendet werden kann. Folglich ist die gewünschte Endrestfeuchte nicht erreicht, was zur Unzufriedenheit mit dem Trockenergebnis führen kann. Weiteren Fehler werden erst nach Abschluss des Trocknungsprozesses angezeigt, wie z. B. die Flusensiebanzeige etc., ohne dass ihretwegen der Trocknungsprozess trotz eventueller Beeinträchtigung abgebrochen wurde. There is a mistake in a household tumble drier that prematurely terminates a drying process, namely a so-called "condensate drop." A fully recognized condensate tank stops the drying process before it can be stopped by sensing the final moisture content desired by the user The desired final moisture content is not reached, which can lead to dissatisfaction with the dry result Further errors are only displayed after completion of the drying process, such as the lint screen etc., without the drying process being interrupted despite possible impairment.
Gemäß der DE 10 2007 062 863 A1 wird der Füllstand eines Kondensatsammelbehälters überwacht, um dann bei einem Überschreiten eines Füllstand-Schwellwerts ein Signal als Hinweis zum Durchführen eines Kondensatentsorgungsvorgangs zu erzeugen. Diese Information alleine kann unter Umständen allerdings nicht ausreichend sein, um einen weiteren sicheren Betrieb ohne einen Abbruch des Trocknungsprozesses zu ermöglichen. According to DE 10 2007 062 863 A1, the filling level of a condensate collecting tank is monitored in order then to generate a signal as an indication for carrying out a condensate removal process when a fill level threshold value is exceeded. However, this information alone may not be sufficient to allow further safe operation without interrupting the drying process.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Haushaltsgerät, insbesondere einen Wäschetrockner, sowie ein Verfahren zum Betreiben eines Haushaltsgeräts, insbesondere eines Wäschetrockners, anzugeben, welche jeweils die frühzeitige Erkennung eines Fehlerfalls ermöglichen sowie Mittel bereitstellen, um den Fehlerfall während des Betriebs zu vermeiden. Diese Aufgabe wird durch ein Haushaltsgerät sowie durch ein Verfahren gemäß jeweiligem unabhängigem Patentanspruch gelöst. Weiterbildungen der Erfindung und fakultative Merkmale ergeben sich aus den abhängigen Patentansprüchen sowie der Beschreibung und den Figuren der beigefügten Zeichnung. Weiterbildungen des Haushaltsgerätes entsprechen dabei, soweit nicht aus technischen Gründen ausgeschlossen, Weiterbildungen des Verfahrens und umgekehrt, und dies auch dann, wenn darauf hierin nicht explizit hingewiesen ist. Erfindungsgemäß umfasst ein Haushaltsgerät, insbesondere ein Wäschetrockner, einen Kondensatsammelbehälter und eine Kondensatwanne sowie eine Steuereinrichtung, welche ausgelegt ist, einen Füllstand des Kondensatsammelbehälters und/oder der Kondensatwanne zu erfassen, wobei die Steuereinrichtung zumindest einen Vergleichswert umfasst und wobei die Steuereinrichtung ausgelegt ist, den oder die Füllstände mit dem zumindest einen Vergleichswert zu vergleichen, und wobei die Steuereinrichtung bei Erreichen, Überschreiten oder Unterschreiten des zumindest einen Vergleichswerts ausgelegt ist, ein Entleerungszeitfenster für den Kondensatsammelbehälter auszugeben. It is therefore an object of the present invention to provide a domestic appliance, in particular a tumble dryer, and a method for operating a domestic appliance, in particular a tumble dryer, which each allow the early detection of a fault and provide means to avoid the fault during operation. This object is achieved by a household appliance and by a method according to respective independent claim. Further developments of the invention and optional features will be apparent from the dependent claims and the description and the figures of the accompanying drawing. Developments of the household appliance correspond, unless excluded for technical reasons, developments of the method and vice versa, and this even if it is not explicitly stated herein. According to the invention, a domestic appliance, in particular a tumble dryer, comprises a condensate collecting tank and a condensate tray and a control device which is designed to detect a filling level of the condensate collecting tank and / or the condensate tray, wherein the control unit comprises at least one comparison value and wherein the control device is designed to control the or to compare the levels with the at least one comparison value, and wherein the control device is designed on reaching, exceeding or falling below the at least one comparison value to output a discharge time window for the condensate collector.
Bei dem Haushaltsgerät handelt es sich bevorzugt um ein Wäschebehandlungsgerät. Gemäß verschiedenen Ausführungsformen ist das Wäschebehandlungsgerät z. B. ein Wäschetrockner, beispielsweise ein Ablufttrockner, ein Kondensationstrockner oder ein Wärmepumpentrockner. Das Haushaltsgerät kann auch ein Kombinationsgerät sein, welches eine Waschmaschinenfunktion und eine Trocknerfunktion in sich vereint. Grundsätzlich handelt es sich bei dem Haushaltsgerät um ein Gerät, bei welchem Kondenswasser anfällt. Zweckmäßigerweise sind zum Sammeln des Kondenswassers die Kondensatwanne und der Kondensatsammelbehälter vorgesehen. Die Kondensatwanne stellt dabei ein erstes Auffanggefäß dar, das fest im Haushaltsgerät verbaut ist und welches der direkten/ersten Aufnahme des Kondensats dient. Die Kondensatwanne ist zweckmäßigerweise fluidleitend mit dem Kondensatsammelbehälter verbunden, wobei gemäß einer bevorzugten Ausführungsform das Haushaltsgerät eine Pumpe umfasst, welche ausgelegt ist, das Kondensat von der Kondensatwanne zum Kondensatsammelbehälter zu pumpen. Zweckmäßigerweise ist die Kondensatwanne in einem unteren Teil des Haushaltsgeräts, beispielsweise unterhalb der sich drehenden Trommel des Trockners angeordnet, während der Kondensatsammelbehälter weiter oben angeordnet ist. Zweckmäßigerweise ist der Kondensatsammelbehälter derart ausgebildet und angeordnet, dass er von einem Benutzer herausgenommen und entleert werden kann. Bei der Steuereinrichtung handelt es sich zweckmäßigerweise um eine elektrische Einheit, welche ausgelegt ist, das Haushaltsgerät zu betreiben. Gemäß einer bevorzugten Ausführungsform weist die Steuereinrichtung entsprechende Eingabe- und Ausgabemittel auf, worüber das Haushaltsgerät z. B. bedient werden kann. Bevorzugt ist z. B. auch eine entsprechende Anzeigevorrichtung vorgesehen, welche dazu bestimmt ist, einem Benut- zer bestimmte Informationen anzuzeigen. Der große Vorteil liegt nun darin, dass die Steuereinrichtung ausgelegt ist, einen Füllstand des Kondensatsammelbehälters und/oder auch der Kondensatwanne zu erfassen und auf dieser Basis das Entleerungszeitfenster zu berechnen, welches sozusagen den verbleibenden Zeitraum bis zum Kondensatfall angibt. Der erfasste Füllstand bzw. die erfassten Füllstände werden mit einem Ver- gleichswert verglichen, welcher ebenfalls einen bestimmten Füllstand darstellt. Wenn der Füllstand des Kondensatsammelbehälters oder der Kondensatwanne den Vergleichswert erreicht hat, kann die Steuereinrichtung das Entleerungszeitfenster berechnen, d. h. den Zeitraum, welcher noch zur Verfügung steht, um den Kondensatsammelbehälter zu entleeren. The household appliance is preferably a laundry treatment appliance. According to various embodiments, the laundry treatment device is z. B. a tumble dryer, for example, an exhaust air dryer, a condensation dryer or a heat pump dryer. The household appliance may also be a combination device, which combines a washing machine function and a dryer function in itself. Basically, the household appliance is a device in which condensation occurs. Conveniently, the condensate pan and the condensate collection are provided for collecting the condensate. The condensate tray represents a first collecting vessel, which is permanently installed in the household appliance and which serves the direct / first recording of the condensate. The condensate tray is suitably fluidly connected to the condensate collecting tank, wherein according to a preferred embodiment, the household appliance comprises a pump which is designed to pump the condensate from the condensate tray to the condensate collecting tank. The condensate tray is expediently arranged in a lower part of the domestic appliance, for example below the rotating drum of the dryer, while the condensate collecting container is arranged higher up. Conveniently, the condensate collection container is designed and arranged such that it can be removed and emptied by a user. The control device is expediently an electrical unit which is designed to operate the domestic appliance. According to a preferred embodiment, the control device has corresponding input and output means, via which the household appliance z. B. can be served. Preferably z. For example, a corresponding display device is provided which is intended to display certain information to a user. The great advantage lies in the fact that the control device is designed to detect a level of the condensate collection tank and / or the condensate pan and to calculate on this basis the emptying time window, which indicates, so to speak, the remaining period to the condensate. The detected level or the detected levels are compared with a comparison value, which also represents a certain level. When the level of the condensate collector or condensate tray has reached the comparison value, the controller may calculate the discharge time window, ie, the period of time still available to empty the condensate collector.
Zweckmäßigerweise ist der zumindest eine Vergleichswert ein Grenz-Füllstand des Kondensatsammelbehälters. Der Grenz-Füllstand ist ein Füllstand, welcher unterhalb eines maximalen Füllstandes des Kondensatsammelbehälters liegt. Bevorzugt werden also mehrere Füllstände/Wasserpegel gemessen bzw. erfasst. Ist der maximale Füllstand des Kondensatsammelbehälters erreicht, führt dies zum Abbruch des Trocknungsprozesses (Kondensatfall). D. h., es kann dazu kommen, dass der Trocknungsprozess endet, bevor dieser durch die Sensierung der vom Benutzer gewünschten Endrestfeuchte beendet wird. Folglich ist ggf. die gewünschte Endrestfeuchte nicht erreicht, was zur Unzufriedenheit mit dem Trockenergebnis führen kann. Das Entleerungszeitfenster gibt aber nun mit Vorteil den Zeitraum an, innerhalb dessen noch„reagiert" werden kann. Beispielsweise beträgt der Grenz-Füllstand etwa 50 % bis 90 %, bevorzugt etwa 60 % bis 80 % des maximalen Füllstandes des Kondensatsammelbehälters. Conveniently, the at least one comparison value is a limit level of the condensate collection tank. The limit level is a level that is below a maximum level of the condensate collection tank. Thus, several levels / water levels are preferably measured or detected. If the maximum level of the condensate collection tank is reached, this leads to the termination of the drying process (condensate drop). That is, it may happen that the drying process ends before it is terminated by the sensing of the final moisture content desired by the user. Consequently, if necessary, the desired final moisture content is not reached, which can lead to dissatisfaction with the dry result. However, the emptying time window now advantageously indicates the period of time within which it is still possible to "react." For example, the limit level is about 50% to 90%, preferably about 60% to 80% of the maximum fill level of the condensate collection container.
Zweckmäßigerweise ist die Steuereinrichtung ausgelegt, das Entleerungszeitfenster an einen Benutzer zu übermitteln bzw. zu übersenden. Erwähnt wurde bereits, dass die Steuereinrichtung mit Vorteil eine Anzeigevorrichtung oder dergleichen umfasst. Gemäß einer bevorzugten Ausführungsform umfasst das Haushaltsgerät bzw. dessen Steuereinrichtung eine erweiterte Benutzerschnittstelle, bevorzugt ein mobiles Endgerät. Eine der- artige mobile Benutzerschnittstelle in Form einer mobilen Anwendung, bevorzugt einer App, bietet die Möglichkeit, die Vorankündigung des Fehlerfalls anzuzeigen. Dies kann in Form eines Textes erfolgen, z. B.:„Ihr Kondenswasser-Behälter ist fast voll. Bitte entleeren Sie diesen, um einen unerwünschten Trocknungsabbruch zu vermeiden". Die Anzeige kann durch eine herunterzählende Uhr erweitert werden, um zu verdeutlichen, wann die Möglichkeit endet, den verzögerten Fehlerfall zu vermeiden. Die herunterzählende Uhr entspricht dem Entleerungszeitfenster, also dem Zeitraum, welcher zur Verfügung steht, bis ein maximaler Füllstand des Kondensatsammelbehälters erreicht ist. Appropriately, the control device is designed to transmit the emptying time window to a user or to send. It has already been mentioned that the control device advantageously comprises a display device or the like. According to a preferred embodiment, the household appliance or its control device comprises an extended user interface, preferably a mobile terminal. One of the- Such mobile user interface in the form of a mobile application, preferably an app, offers the opportunity to display the advance notice of the error case. This can be done in the form of a text, eg. B.: "Your condensate tank is almost full. Please empty this to avoid unwanted drying abort. "The display can be extended with a down-counting clock to clarify when the possibility of avoiding the delayed error event ends.The down-counting clock corresponds to the emptying time window, ie the period is available until a maximum level of the condensate collection tank is reached.
Zweckmäßigerweise umfasst die Steuereinrichtung einen Schaltpegel, welcher ein Füll- stand der Kondensatwanne ist, wobei die Steuereinrichtung ausgelegt ist, bei Erreichen oder Überschreiten des Schaltpegels die Pumpe anzusteuern. Diese Ausgestaltung wird „ereignisgesteuert" bezeichnet. Ereignisgesteuert bedeutet, dass die Pumpe bei einer bestimmten Wassermenge, dem Schaltpegel, auslöst. Bei„ereignisgesteuerten" Pumpen arbeitet die Kondensatpumpe im Allgemeinen also erst bei Vorhandensein einer bestimmten vorgegebenen Wassermenge, wobei im Allgemeinen die Pumpe dann mit einer vorgegebenen konstanten Förderleistung arbeitet. Wird die vorgegebene Wassermenge unterschritten, wird die Pumpe abgeschaltet. Zweckmäßigerweise ist die Steuereinrichtung dahingehend parametriert, dass nach Ablauf des Entleerungszeitfensters erneut gepumpt und geprüft wird, ob der Pumpzyklus erfolgreich war. Ist dies der Fall, ist davon auszugehen, dass der Benutzer die Vorankündigung wahrgenommen hat. Im andern Fall ist der Fehler weiter vorhanden und der Trockner kann in sein Fehlermanagement springen. Da im laufenden Trocknungsprozess weiterhin Kondensat anfällt, muss das System so ausgelegt werden, dass der Gerätebetrieb auch bei dem deutlich gegenüber dem Schaltpegel erhöhten Wasserpegel sicher ist. Zweckmäßigerweise liegt also auch der Schaltpegel, welcher einen Füllstand der Kondensatwanne darstellt, beispielsweise in einem Bereich von etwa 50 % bis 90 % unterhalb eines maximalen Füllstandes der Kondensatwanne, zweckmäßigerweise in einem Bereich von etwa 60 % bis 80 %. Alternativ kann die Pumpe auch zeitlich gesteuert sein. Zeitlich gesteuert bedeutet hierbei eine Steuerung anhand vorbestimmter Zeitwerte z. B. im Programmablauf des Haushalts- geräts/des Wäschetrockners. Expediently, the control device comprises a switching level, which is a filling level of the condensate tray, wherein the control unit is designed to control the pump when the switching level is reached or exceeded. This designation is called "event-controlled." Event-controlled means that the pump triggers at a certain amount of water, the switching level, so that in the case of "event-driven" pumps, the condensate pump generally operates only when a certain predetermined amount of water is available a predetermined constant capacity works. If the specified amount of water is exceeded, the pump is switched off. Expediently, the control device is parameterized such that, after the emptying time window has expired, pumping is again carried out and it is checked whether the pumping cycle was successful. If this is the case, it can be assumed that the user has carried out the advance notice. Otherwise, the error persists and the dryer may jump into its fault management. Since condensate still accumulates in the course of the drying process, the system must be designed in such a way that the operation of the device is safe even when the water level is markedly higher than the switching level. Conveniently, therefore, the switching level, which represents a level of the condensate tray, for example in a range of about 50% to 90% below a maximum level of the condensate tray, suitably in a range of about 60% to 80%. Alternatively, the pump can also be timed. Time-controlled in this case means a control based on predetermined time values z. B. in the program sequence of the household appliance / tumble dryer.
Alternativ oder zusätzlich kann der zumindest eine Vergleichswert ein minimaler Füllstand der Kondensatwanne sein. Von der Kondensatwanne wird, wenn diese einen bestimmten Füllstand (vgl. Schaltpegel) erreicht hat, über eine Pumpe das aufgefangene bzw. angefallene Kondensat in den Kondensatsammelbehälter, welcher in der Regel oberhalb der Kondensatwanne angeordnet ist, gepumpt. Zweckmäßigerweise ist die Steuereinrichtung dahingehend ausgelegt, zu erkennen, ob der Pumpprozess erfolgreich war. Dabei wird der Füllstand zu einem festgelegten Zeitpunkt nach dem Pumpzyklus ausgewertet. Ist kein Wasser vorhanden, wird der Pumpzyklus als erfolgreich gewertet. Andernfalls war der Zyklus nicht erfolgreich und das System sendet beispielsweise einen entsprechenden Fehler bzw. leitet geeignete Maßnahmen ein. Vorteilhafterweise kann nun nach Erkennung des nicht erfolgreichen Pumpens das Entleerungszeitfenster gestartet werden. Zweckmäßigerweise wird also anhand eines Füllstands der Kondensatwanne, insbesondere anhand eines minimalen Füllstands der Kondensatwanne, ein Entleerungszeitfenster für den Kondensatsammelbehälter ausgegeben bzw. gestartet. Der minimale Füllstand ist dabei dahingehend zu verstehen, dass überprüft wird, ob die Kondensatwanne z. B. leer ist. Damit kann der Rückschluss gezogen werden, ob der Pumpzyklus erfolgreich war. Alternatively or additionally, the at least one comparison value may be a minimum fill level of the condensate tray. From the condensate tray, if this one specific Level has reached (see switching level), pumped via a pump, the collected or accumulated condensate in the condensate collection tank, which is usually located above the condensate tray. Conveniently, the controller is adapted to recognize if the pumping process was successful. The level is evaluated at a specified time after the pumping cycle. If there is no water, the pumping cycle is considered successful. Otherwise, the cycle was unsuccessful and, for example, the system sends a corresponding error or initiates appropriate measures. Advantageously, after the unsuccessful pump has been detected, the emptying time window can now be started. Appropriately, therefore, based on a level of the condensate tray, in particular based on a minimum level of the condensate tray, issued a discharge time window for the condensate collection or started. The minimum level is to be understood as meaning that it is checked whether the condensate tray z. B. is empty. Thus, the conclusion can be drawn whether the pumping cycle was successful.
Ein weiterer Vorteil, welcher sich ergibt, ist, dass die Erkennung des nicht erfolgreichen Pumpzyklus zweimal erhärtet wird, was eine deutlich bessere Absicherung des Kondensatfalls bedeutet. Zweckmäßigerweise umfasst die Steuereinrichtung eine Zeitschaltung, welche ausgelegt ist, nach Ablauf des Entleerungszeitfensters die Pumpe anzusteuern. Die Zeitschaltung ermöglicht also, zu überprüfen, ob der Pumpzyklus erfolgreich war. Another advantage that results is that the detection of the unsuccessful pumping cycle is hardened twice, which means a much better protection of the condensate. Conveniently, the control device comprises a timer, which is designed to control the pump after the emptying time window. The timing circuit thus makes it possible to check whether the pumping cycle was successful.
Zweckmäßigerweise umfasst das Haushaltsgerät eine erste Messeinrichtung, welche ausgelegt ist, den Füllstand des Kondensatsammelbehälters zu erfassen, wobei die erste Messeinrichtung zweckmäßigerweise zumindest zwei Elektroden umfasst, welche in dem Kondensatsammelbehälter entlang einer Hochachse in einem Abstand zueinander angeordnet sind. Dies stellt eine äußerst einfache und effektive Bauform dar. Die Messeinrichtung ermittelt den Leitwert zwischen zwei Elektroden. Im Fall von zwei Wasserpegeln reichen drei Elektroden aus. Expediently, the household appliance comprises a first measuring device, which is designed to detect the fill level of the condensate collecting container, wherein the first measuring device expediently comprises at least two electrodes, which are arranged in the condensate collecting container along a vertical axis at a distance from one another. This represents an extremely simple and effective design. The measuring device determines the conductance between two electrodes. In the case of two water levels, three electrodes suffice.
Die erste Messeinrichtung kann aber auch ein kontinuierliches Messsystem sein, welches mit zumindest zwei Schwellwerten arbeitet. Um mindestens zwei Wasserpegel zu realisie- ren, kann auch die Verwendung von zwei Reed-Kontakten mit einem Schwimmermagnet verwendet werden. However, the first measuring device can also be a continuous measuring system which operates with at least two threshold values. To realize at least two water levels The use of two reed contacts with a float magnet can also be used.
Zweckmäßigerweise umfasst das Haushaltsgerät auch eine zweite Messeinrichtung, welche ausgelegt ist, den Füllstand der Kondensatwanne zu umfassen. Auch hier gelten die vorgenannten Möglichkeiten zur Realisierung der Messung. Conveniently, the household appliance also includes a second measuring device, which is designed to include the level of the condensate tray. Again, the above possibilities for the realization of the measurement apply.
Erfindungsgemäß ist auch ein Verfahren zum Betreiben eines Haushaltsgeräts vorgesehen, insbesondere zum Überwachen eines Trocknungsprozesses eines Wäschetrockners, wobei das Haushaltsgerät einen Kondensatsammelbehälter und eine Kondensat- wanne aufweist, umfassend die Schritte: The invention also provides a method for operating a domestic appliance, in particular for monitoring a drying process of a tumble dryer, the household appliance having a condensate collecting tank and a condensate tray, comprising the steps:
Erfassen eines Füllstandes des Kondensatsammelbehälters und/oder der Kondensatwanne;  Detecting a fill level of the condensate collection tank and / or the condensate pan;
Vergleich des/der Füllstände mit zumindest einem Vergleichswert;  Comparison of the level (s) with at least one comparison value;
Ausgabe oder Erzeugen eines Entleerungszeitfensters für den Kondensat- Sammelbehälter bei Erreichen, Überschreiten oder Unterschreiten des zumindest einen Vergleichswerts.  Output or generation of an emptying time window for the condensate collecting tank upon reaching, exceeding or falling below the at least one comparison value.
Die minimale Länge des Entleerungszeitfensters ergibt sich aus dem vertikalen Abstand der Messpunkte und der maximalen Kondensationsgeschwindigkeit des Trockners. Diese Gestaltung hat weitere Vorteile, die im Gerätebetrieb genutzt werden können. Ein Vorteil ist die Trennung des Schaltelements für ereignisgesteuertes Pumpen von dem Sicherheitselement, welches das Fehlermanagement einleitet. Ein anderer Vorteil ist die Messung der Kondensationsrate. Da das Volumen zwischen den beiden Messpunkten bekannt ist, kann über die Zeit zwischen dem Erreichen der beiden Wasserpegel die Kon- densationsgeschwindigkeit berechnet werden. Diese Kenngröße ist abhängig vom Zeitpunkt innerhalb der Trocknung und kann zur Erhärtung der Kennung der Trocknungsphase herangezogen werden. So ist die Kondensationsgeschwindigkeit in der sog. Plateauphase konstant. Davor und danach jedoch nimmt sie niedrigere Werte an. Zweckmäßigerweise umfasst das Verfahren weiterhin den Schritt: The minimum length of the emptying time window results from the vertical distance of the measuring points and the maximum condensation speed of the dryer. This design has other advantages that can be used in device operation. One advantage is the separation of the event-driven pumping element from the security element, which initiates fault management. Another advantage is the measurement of the condensation rate. Since the volume between the two measuring points is known, the condensation rate can be calculated over the time between reaching the two water levels. This parameter is dependent on the time within the drying and can be used to harden the identification of the drying phase. Thus, the condensation rate in the so-called plateau phase is constant. Before and after, however, it assumes lower values. Conveniently, the method further comprises the step:
Übermittlung des Entleerungszeitfensters an einen Benutzer. Die Übermittlung kann beispielsweise über eine Anzeigevorrichtung der Steuereinrichtung geschehen, oder über eine erweiterte Benutzerschnittstelle, beispielsweise in Form einer App. Transmission of the emptying time window to a user. The transmission can take place, for example, via a display device of the control device, or via an extended user interface, for example in the form of an app.
Zweckmäßigerweise umfasst das Verfahren weiter den Schritt: Conveniently, the method further comprises the step:
- Beenden des Betreibens des Haushaltsgeräts erst dann, wenn der Füllstand des Kondensatsammelbehälters und der Kondensatwanne einen Maximalwert erreicht haben. - End of the operation of the household appliance only when the level of the condensate collection tank and the condensate pan have reached a maximum value.
Mit Vorteil werden also die beiden vorhandenen Speichervolumina bestmöglich genutzt. Sollte der Kondensatsammelbehälter voll sein, muss dies noch nicht zum Kondensatfall führen, da noch das Volumen der Kondensatwanne vollständig ausgereizt werden kann. Erst wenn beide Füllstände ihren Maximalwert erreicht haben, wird der Betrieb des Haushaltsgeräts, vorliegend also insbesondere der Trocknungsprozess des Wäschetrockners, beendet. Das Entleerungszeitfenster, welches sich auf das noch verbleibende noch zur Verfügung stehende Volumen des Kondensatsammelbehälters bezieht, kann also noch um das Volumen der Kondensatwanne erweitert werden, wodurch der Abbruch des Trocknungsprozesses weiter hinausgezögert werden kann. Advantageously, therefore, the two existing storage volumes are used as best as possible. If the condensate collection tank is full, this does not yet have to lead to condensation, as the volume of the condensate tray can still be completely exhausted. Only when both levels have reached their maximum value, the operation of the household appliance, in this case in particular the drying process of the clothes dryer, ended. The emptying time window, which refers to the still remaining volume of the condensate collection container still available, can therefore be extended by the volume of the condensate tray, whereby the termination of the drying process can be further delayed.
Zweckmäßigerweise umfasst das Verfahren zudem den Schritt: Conveniently, the method further comprises the step:
- Vorausberechnen eines Endes des Trocknungsprozesses. - predicting an end of the drying process.
Mit anderen Worten wird zweckmäßigerweise also eine Restlaufzeit vorausberechnet. Diese Vorausberechnung basiert zweckmäßigerweise auf der genannten Kondensationsgeschwindigkeit. Das Ende des Trocknungsprozesses kann zweckmäßigerweise in Rela- tion gesetzt werden zum Entleerungszeitfenster bzw. zur Länge des Entleerungszeitfensters. Ist das Entleerungszeitfenster länger als der Zeitraum bis zum Ende des Trocknungsprozesses bzw. der Restlaufzeit, kann zweckmäßigerweise auch diese Information an einen Benutzer übermittelt werden. Der Benutzer weiß dann, dass er zumindest nach dem Ende des Trocknungsprozesses den Kondensatsammelbehälter ausleeren sollte, er weiß aber auch, dass keine Notwendigkeit besteht, dies noch im laufenden Betrieb durchzuführen. In other words, expediently, therefore, a residual maturity is calculated in advance. This precalculation is expediently based on the condensation rate mentioned. The end of the drying process can expediently be related to the emptying time window or to the length of the emptying time window. If the emptying time window is longer than the period until the end of the drying process or the remaining running time, it is expediently also possible for this information to be transmitted to a user. The user then knows that, at least after the end of the drying process, he should empty the condensate collector, but he also knows that there is no need to do it during operation.
Zweckmäßigerweise umfasst das Verfahren weiter die Schritte: - Pumpen von Kondensat von der Kondensatwanne zum Kondensatsammelbehälter, wenn ein Schaltpegel in der Kondensatwanne erreicht oder überschritten ist; Conveniently, the method further comprises the steps: - Pumping condensate from the condensate pan to the condensate collector, when a switching level in the condensate pan is reached or exceeded;
Erfassen des Füllstandes der Kondensatwanne nach dem Durchführen des Pumpvorganges;  Detecting the level of the condensate tray after performing the pumping operation;
Übermittlung des Entleerungszeitfensters an den Benutzer, wenn der Füllstand der Kondensatwanne größer als ein minimaler Füllstand ist.  Transmission of the emptying time window to the user when the level of the condensate tray is greater than a minimum level.
Weiter umfasst das Verfahren zweckmäßigerweise den Schritt: Furthermore, the method expediently comprises the step:
Erneutes Pumpen nach Ablauf des Entleerungszeitfensters.  Re-pumping after expiration of the emptying time window.
Nach Erkennen des nicht erfolgreichen Pumpens beginnt zweckmäßigerweise also das Entleerungszeitfenster, an dessen Ende wird erneut gepumpt und geprüft, ob der Pumpzyklus erfolgreich war. After recognition of the unsuccessful pumping thus expediently begins the emptying window, at the end of which pumped again and checked whether the pumping cycle was successful.
Es gelten für das Verfahren die bereits in Bezug auf das Haushaltsgerät erwähnten Vorteile und Merkmale analog und entsprechend. Für das Haushaltsgerät gelten die im Zusammenhang mit dem Verfahren genannten Merkmale analog und entsprechend. The advantages and features already mentioned in relation to the domestic appliance apply analogously and accordingly to the method. For the domestic appliance, the features mentioned in connection with the method apply analogously and accordingly.
Weitere Vorteile und Merkmale ergeben sich aus der nachfolgenden Beschreibung einer bevorzugten Ausführungsform des erfindungsgemäßen Haushaltsgerätes mit Bezug auf die Figur der beigefügten Zeichnung. Es zeigt: Further advantages and features will become apparent from the following description of a preferred embodiment of the household appliance according to the invention with reference to the figure of the accompanying drawings. It shows:
Figur 1 eine Schnittdarstellung eines Wäschetrockners. Figure 1 is a sectional view of a tumble dryer.
Fig. 1 zeigt in einer Schnittdarstellung eine Ausführungsform eines Haushaltsgerätes 10, insbesondere eines Wäschetrockners. Dargestellt ist in der hier gezeigten Ausfüh- rungsform eine Schnittdarstellung durch einen Kondensationstrockner, wobei diese Ausgestaltung nur ein Beispiel darstellt. Der Trockner 10 umfasst in seinem oberen Bereich eine Steuerung 30, welche eine Bedieneinheit bzw. Ein-/Ausgabemittel 32 und eine Anzeigevorrichtung 34 umfasst. Die Anzeigevorrichtung 34 kann optisch und/oder akustisch ausgebildet sein. Zweckmäßigerweise ist die Steuereinrichtung auch dahingehend ausgelegt, eine erweiterte Benutzerschnittstelle in Form einer mobilen Anwendung wie z. B. eine App zu umfassen. Der Trockner 10 umfasst eine drehbar gelagerte Trommel 12, welche über eine Tür 16 befüllt werden kann. Durch eine Heizung 68 erwärmte Prozessluft kann durch einen Prozessluftkanal 14 und durch die Trommel 12 strömen. Die Anord- nung eines Verdampfers 62, eines Verflüssigers 64, eines Pumpe 66 sowie eines Kompressors 70 sind grundsätzlich aus dem Stand der Technik bekannt. Der Fokus liegt auf der Kondensatwanne 40, welche über eine Leitung 22 mit einem darüber angeordneten Kondensatsammelbehälter 20 verbunden ist. Flüssigkeit bzw. Kondensat kann von der Kondensatwanne 40 zum Kondensatsammelbehälter 20 über eine Pumpe 60 transportiert werden. Der Kondensatsammelbehälter 20 ist zweckmäßigerweise austauschbar gestaltet, sodass er von einem Benutzer bei Bedarf entleert werden kann. Gemäß eine anderen Ausführungsform ist der Kondensatsammelbehälter 20 auch in einem oberen Bereich, beispielsweise oberhalb der Trommel 12, angeordnet, beispielsweise auf einer Ebene bzw. im Bereich der Steuereinrichtung 30. Zweckmäßigerweise ist die Steuereinrichtung nun bevorzugt über (hier nicht dargestellte) erste und zweite Messeinrichtungen ausgelegt, die Füllstände der Kondensatwanne 40 und des Kondensatsammelbehälters 20 zu erfassen. Angedeutet ist ein Grenz-Füllstand G im Kondensatsammelbehälter 20, bei welchem ein Entleerungszeitfenster beginnt bzw. ausgegeben wird. Dieser Grenz-Füllstand G liegt unterhalb eines maximalen Füllstands M, bei welchem der Kondensatsammelbe- hälter 20 ausgeleert werden sollte, zumindest dann, wenn auch die Kondensatwanne 40 vollständig gefüllt ist. In der Kondensatwanne 40 ist ein Schaltpegel S angedeutet, welcher einen Füllstand der Kondensatwanne 40 darstellt, bei dessen Erreichen oder Überschreiten die Pumpe 60 angesteuert wird, um Kondensat von der Kondensatwanne 40 zum Kondensatsammelbehälter 20 zu transportieren. Die Auswertung bzw. die Erfassung beider Füllstände, sowohl der Kondensatwanne 40 als auch des Kondensatsammelbehälters 20, ermöglicht, den Trocknungsprozess so weit wie möglich zu verlängern bzw. den Fehlerfall/Kondensatfall zu vermeiden bzw. nach hinten zu verschieben. Fig. 1 shows in a sectional view an embodiment of a household appliance 10, in particular a tumble dryer. Shown in the embodiment shown here is a sectional view through a condensation dryer, this embodiment being only an example. The dryer 10 comprises in its upper region a controller 30, which comprises an operating unit or input / output means 32 and a display device 34. The display device 34 may be formed optically and / or acoustically. Conveniently, the controller is also designed to provide an enhanced user interface in the form of a mobile application such. For example, to include an app. The dryer 10 comprises a rotatably mounted drum 12, which can be filled via a door 16. Process air heated by a heater 68 can flow through a process air channel 14 and through the drum 12. The arrangements tion of an evaporator 62, a condenser 64, a pump 66 and a compressor 70 are basically known from the prior art. The focus is on the condensate tray 40, which is connected via a line 22 to a condensate collecting tank 20 arranged above it. Liquid or condensate can be transported from the condensate tray 40 to the condensate collecting tank 20 via a pump 60. The condensate collector 20 is suitably designed to be interchangeable, so that it can be emptied by a user if necessary. According to another embodiment, the condensate collecting tank 20 is also arranged in an upper region, for example above the drum 12, for example on a plane or in the region of the control device 30. Expediently, the control device is now preferably via first and second measuring devices (not shown here) designed to detect the levels of the condensate pan 40 and the condensate collection tank 20. A limit level G in the condensate collection container 20 is indicated in which a discharge time window is started or output. This limit fill level G is below a maximum fill level M at which the condensate collection container 20 should be emptied, at least when the condensate pan 40 is completely filled. In the condensate tray 40, a switching level S is indicated, which represents a level of the condensate pan 40, when it reaches or exceeds the pump 60 is driven to transport condensate from the condensate pan 40 to the condensate collection tank 20. The evaluation or the detection of both levels, both the condensate pan 40 and the condensate collection tank 20, allows to extend the drying process as much as possible or to avoid the error case / condensate case or move to the rear.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
10 Haushaltsgerät, Wäschetrockner 10 appliances, tumble dryer
12 Trommel  12 drum
14 Prozessluftkanal  14 process air duct
16 Tür  16 door
20 Kondensatsammelbehälter  20 condensate collector
22 Leitung  22 line
30 Steuereinrichtung  30 control device
32 Bedieneinheit, Ein-/Ausgabemittel  32 Control unit, input / output means
34 Anzeigevorrichtung  34 display device
40 Kondensatwanne  40 condensate tray
60 Pumpe  60 pump
62 Verdampfer  62 evaporator
64 Verflüssiger  64 liquefier
66 Prozessluftgebläse  66 process air blower
68 Heizung  68 heating
70 Kompressor  70 compressor
M (maximaler) Füllstand  M (maximum) level
S Schaltpegel  S switching level
G Grenz-Füllstand  G limit level

Claims

PATENTANSPRÜCHE
Haushaltsgerät (10), insbesondere Wäschetrockner, Domestic appliance (10), in particular tumble dryer,
umfassend einen Kondensatsammelbehälter (20) und eine Kondensatwanne (40), sowie eine Steuereinrichtung (30), welche ausgelegt ist, einen Füllstand des Kondensatsammelbehälters (20) und/oder der Kondensatwanne (40) zu erfassen, wobei die Steuereinrichtung (30) zumindest einen Vergleichswert umfasst, und wobei die Steuereinrichtung (30) ausgelegt ist, den oder die Füllstände mit dem zumindest einen Vergleichswert zu vergleichen, und comprising a condensate collecting container (20) and a condensate tray (40), and a control device (30) which is designed to detect a filling level of the condensate collecting container (20) and / or the condensate tray (40), wherein the control device (30) comprises at least one Comparative value comprises, and wherein the control device (30) is designed to compare the level or levels with the at least one comparison value, and
wobei die Steuereinrichtung (30) bei Erreichen, Überschreiten oder Unterschreiten des zumindest einen Vergleichswerts ausgelegt ist, ein Entleerungszeitfenster für den Kondensatsammelbehälter (20) auszugeben. wherein the control device (30) is designed on reaching, exceeding or falling below the at least one comparison value to output an emptying time window for the condensate collecting tank (20).
Haushaltsgerät (10) nach Anspruch 1 , Household appliance (10) according to claim 1,
wobei der zumindest eine Vergleichswert ein Grenz-Füllstand (G) des Kondensatsammelbehälters (20) ist. wherein the at least one comparison value is a limit level (G) of the condensate collecting tank (20).
Haushaltsgerät (10) nach Anspruch 1 oder 2, Household appliance (10) according to claim 1 or 2,
wobei der zumindest eine Vergleichswert ein minimaler Füllstand der Kondensatwanne (40) ist. wherein the at least one comparison value is a minimum fill level of the condensate tray (40).
Haushaltsgerät (10) nach einem der vorhergehenden Ansprüche, Household appliance (10) according to one of the preceding claims,
wobei die Kondensatwanne (40) ein erstes Auffanggefäß darstellt, das fest im Haushaltsgerät (10) verbaut ist und welches der direkten/ersten Aufnahme des Kondensats dient. wherein the condensate pan (40) constitutes a first collecting vessel, which is permanently installed in the domestic appliance (10) and which serves for the direct / first absorption of the condensate.
Haushaltsgerät (10) nach einem der vorhergehenden Ansprüche, Household appliance (10) according to one of the preceding claims,
wobei die Kondensatwanne (40) fluidleitend mit dem Kondensatsammelbehälter (20) verbunden ist, wobei bevorzugt das Haushaltsgerät (10) eine Pumpe (60) umfasst, welche ausgelegt ist, das Kondensat von der Kondensatwanne (40) zum Kondensatsammelbehälter (20) zu pumpen. Haushaltsgerät (10) nach einem der vorhergehenden Ansprüche, wherein the condensate tray (40) is fluidly connected to the condensate receiver (20), wherein preferably the domestic appliance (10) comprises a pump (60) adapted to pump the condensate from the condensate tray (40) to the condensate receiver (20). Household appliance (10) according to one of the preceding claims,
wobei die Kondensatwanne (40) in einem unteren Teil des Haushaltsgeräts (10), beispielsweise unterhalb einer sich drehenden Trommel des Trockners angeordnet, ist, während der Kondensatsammelbehälter (20) weiter oben angeordnet ist, beispielsweise oberhalb der Kondensatwanne (40) angeordnet ist. wherein the condensate pan (40) is arranged in a lower part of the domestic appliance (10), for example below a rotating drum of the dryer, while the condensate collecting tank (20) is arranged higher up, for example above the condensate pan (40).
Haushaltsgerät (10) nach einem der vorhergehenden Ansprüche, Household appliance (10) according to one of the preceding claims,
wobei die Steuereinrichtung (30) eine Zeitschaltung umfasst, welche ausgelegt ist, nach Ablauf des Entleerungszeitfensters eine Pumpe (60) anzusteuern. wherein the control device (30) comprises a timer circuit, which is designed to control a pump (60) after the expiration of the emptying time window.
Haushaltsgerät (10) nach einem der vorhergehenden Ansprüche, Household appliance (10) according to one of the preceding claims,
umfassend eine erste Messeinrichtung, welche ausgelegt ist, den Füllstand descomprising a first measuring device, which is designed, the level of the
Kondensatsammelbehälters (20) zu erfassen, To capture condensate collection tank (20)
wobei die erste Messeinrichtung zumindest zwei Elektroden umfasst, wherein the first measuring device comprises at least two electrodes,
welche in dem Kondensatsammelbehälter (20) entlang einer Hochachse (H) in einem Abstand zueinander angeordnet sind. which are arranged in the condensate collecting container (20) along a vertical axis (H) at a distance from each other.
Haushaltsgerät (10) nach einem der vorhergehenden Ansprüche, Household appliance (10) according to one of the preceding claims,
umfassend eine zweite Messeinrichtung, welche ausgelegt ist, den Füllstand dercomprising a second measuring device, which is designed, the level of the
Kondensatwanne (40) zu erfassen. Condensate tray (40) to detect.
Verfahren zum Betreiben eines Haushaltsgeräts (10), insbesondere zum Überwachen eines Trocknungsprozesses eines Wäschetrockners, Method for operating a domestic appliance (10), in particular for monitoring a drying process of a tumble dryer,
wobei das Haushaltsgerät (10) einen Kondensatsammelbehälter (20) und eine Kondensatwanne (40) aufweist, wherein the domestic appliance (10) has a condensate collecting container (20) and a condensate tray (40),
umfassend die Schritte: comprising the steps:
- Erfassen eines Füllstandes des Kondensatsammelbehälters (20) und/oder der Kondensatwanne (40);  - Detecting a level of the condensate collection tank (20) and / or the condensate pan (40);
- Vergleich des oder der Füllstände mit zumindest einem Vergleichswert;  - Comparison of the level or levels with at least one comparison value;
- Ausgabe oder Erzeugen eines Entleerungszeitfensters für den Kondensatsammelbehälter (20) bei Erreichen, Überschreiten oder Unterschreiten des zumindest einen Vergleichswerts. 1 1 Verfahren nach Anspruch 10, - Issuing or generating a discharge time window for the condensate collection container (20) upon reaching, exceeding or falling below the at least one comparison value. 1 1 method according to claim 10,
weiter umfassend den Schritt:  further comprising the step:
- Übermittlung des Entleerungszeitfensters an einen Benutzer.  - Transmission of the emptying time window to a user.
12. Verfahren nach einem der Ansprüche 10 und 1 1 , 12. The method according to any one of claims 10 and 1 1,
wobei der zumindest eine Vergleichswert ein Grenz-Füllstand (G) des Kondensatsammelbehälters (20) ist.  wherein the at least one comparison value is a limit level (G) of the condensate collecting tank (20).
13. Verfahren nach einem der Ansprüche 10 bis 12, 13. The method according to any one of claims 10 to 12,
weiter umfassend den Schritt:  further comprising the step:
- Beenden des Betreibens des Haushaltsgeräts (10) erst dann, wenn der Füllstand des Kondensatsammelbehälters (20) und der Kondensatwanne (40) einen Maximalwert erreicht haben.  - End of the operation of the household appliance (10) only when the level of the condensate collection container (20) and the condensate pan (40) have reached a maximum value.
14. Verfahren nach einem der Ansprüche 10 bis 13, 14. The method according to any one of claims 10 to 13,
weiter umfassend der Schritt:  further comprising the step:
- Pumpen von Kondensat von der Kondensatwanne (40) zum Kondensatsammelbehälter (20), wenn ein Schaltpegel in der Kondensatwanne (40) erreicht oder überschritten ist;  - pumping condensate from the condensate pan (40) to the condensate receiver (20) when a switching level in the condensate pan (40) is reached or exceeded;
- Erfassen des Füllstandes der Kondensatwanne (40) nach dem Durchführen des Pumpvorgangs;  - Detecting the level of the condensate pan (40) after performing the pumping operation;
- Übermittlung des Entleerungszeitfensters an den Benutzer, wenn der Füllstand der Kondensatwanne (40) größer als ein minimaler Füllstand ist.  - Transmission of the emptying time window to the user when the level of the condensate tray (40) is greater than a minimum level.
15. Verfahren nach Anspruch 14, 15. The method according to claim 14,
weiter umfassend den Schritt:  further comprising the step:
- Erneutes Pumpen nach Ablauf des Entleerungszeitfensters.  - Re-pump after expiration of the emptying time window.
EP16819949.5A 2016-02-12 2016-12-29 Domestic appliance and method for operating a domestic appliance Active EP3414387B1 (en)

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CN110820286A (en) * 2018-07-23 2020-02-21 青岛海尔滚筒洗衣机有限公司 Anti-overflow method and clothes dryer
DE102020111031A1 (en) 2020-04-23 2021-08-05 Miele & Cie. Kg Cooking device for preparing food and a method for operating such a cooking device

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PL3414387T3 (en) 2021-04-19
PL230853B1 (en) 2018-12-31
CN108699758A (en) 2018-10-23
CN108699758B (en) 2020-09-11
DE102016202114A1 (en) 2017-08-17

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