EP3135178B1 - Dishwasher and method for operating such a dishwasher - Google Patents

Dishwasher and method for operating such a dishwasher Download PDF

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Publication number
EP3135178B1
EP3135178B1 EP16183682.0A EP16183682A EP3135178B1 EP 3135178 B1 EP3135178 B1 EP 3135178B1 EP 16183682 A EP16183682 A EP 16183682A EP 3135178 B1 EP3135178 B1 EP 3135178B1
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EP
European Patent Office
Prior art keywords
time
dishwasher
door
period
point
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EP16183682.0A
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German (de)
French (fr)
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EP3135178A1 (en
Inventor
Elmar Weishaupt
Martin Scham
Stephan Wild
Bernd Geser
Sandra Riegger
Klaus Bühl
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Winterhalter Gastronom GmbH
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Winterhalter Gastronom GmbH
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Priority to PL16183682T priority Critical patent/PL3135178T3/en
Publication of EP3135178A1 publication Critical patent/EP3135178A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • 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
    • A47L15/0076—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals
    • A47L15/0078—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals with a plurality of fluid recirculation arrangements, e.g. with separated washing liquid and rinsing liquid recirculation circuits
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/20—Time, e.g. elapsed operating time
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/26—Loading door status, e.g. door latch opened or closed state
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/28—Machine starting, e.g. normal start, restart after electricity cut-off or start scheduling
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit

Definitions

  • the present invention relates to a dishwasher, in particular a commercial dishwasher, with a washing compartment for receiving items to be washed and a method for operating such a dishwasher.
  • a dishwasher and such a method are for example FR 2 717 670 A1 known.
  • reliable cleaning is difficult, especially in cases where heavily soiled items, such as pots and pans, or items to be cleaned with baked, burned or dried-on impurities.
  • a dishwasher comprises a washing compartment, wherein the dishwasher further comprises a door for opening and closing the washing compartment.
  • the user can open the door of the dishwasher to put items to be washed in the washroom, the door after filling or partial filling of the washing compartment can be closed again, or to remove cleaned items again.
  • the dishwasher comprises a start switch for starting a wash program and a selector switch for selecting a first operating mode or a second operating mode, preferably combined, for example, in an operating unit.
  • the dishwasher according to the invention further comprises a sensor for detecting a time t C , to which the door is closed, and a timer, which is designed so that it measures a period .DELTA.t C , from a time t C , to the Door is closed, has passed.
  • the dishwasher according to the invention comprises a control device which is designed so that in the event that the first operating mode is selected via the selector switch and that within a predetermined period .DELTA.t 1 after closing the door of the start switch is not actuated automatically a soaking program Dishwasher is started.
  • a dishwasher according to the invention has the advantage that the user can choose between a first operating mode and a second operating mode, wherein the second operating mode is, for example, a standard operating mode in which the user desires to select different washing programs that the dishwasher has available in which the user can manually and at any time select the appropriate washing program (s) and then start the washing program (s) by means of the start switch.
  • the second operating mode is, for example, a standard operating mode in which the user desires to select different washing programs that the dishwasher has available in which the user can manually and at any time select the appropriate washing program (s) and then start the washing program (s) by means of the start switch.
  • the user also has the option, basically, not only of selecting a particular process or a rinse program to be set, for example the next rinse program, to select a first operating mode which is set over several rinses, several hours or days remains. At least in this first mode of operation is measured by a sensor and a timer, the time elapses after closing the door, according to the invention when choosing the first mode of operation, a soaking program of the dishwasher is automatically started when a predetermined, preferably adjustable, time .DELTA.t. 1 has passed.
  • the dishwasher starts the selected wash program.
  • the user does not start a washing program within the predetermined time period ⁇ t 1 , it can be assumed that the dishwasher is not yet ready, for example is completely filled with items to be washed or the user does not want to start the wash program for another reason yet.
  • the dishwasher will automatically start a soaking program without the user manually selecting and / or starting this soaking program or performing any other operation than closing the door of the dishwasher.
  • the dishwashing machine according to the invention therefore has the advantage that, when it is in the first operating mode, it automatically starts an additional soaking program depending on the user behavior or does not start, namely if the user already has the actual washing program within a predetermined period ⁇ t 1 actual wash programs starts.
  • a soaking program is started, but only if this soaking program is also necessary, namely in particular in cases in which loaded in the washing compartment remains there even longer, without the actual washing program of Dishwasher is started, so that prevents the dirt on the items to dry or so that already dried dirt are soaked in order to achieve a better dishwashing result after the start of the actual wash program.
  • a soaking program is not necessarily preceded when, within a predetermined period of time, the predetermined period .DELTA.t 1 , the wash program is started, so that the dishwasher can work in these cases particularly energy efficient.
  • the dishwasher according to the invention preferably comprises a washing system for dispensing a fluid medium during the execution of the soaking program.
  • This washing system may be a washing system which is also used for one of the normal washing programs, but it is also possible to provide a separate washing system intended exclusively for the soaking program.
  • the dishwasher according to the invention comprises a tank for receiving a fluid medium, which is used to carry out the soaking program, and a pump device, by means of which the fluid medium from the tank is supplied to the at least one washing system.
  • the dishwasher according to the invention further comprises a reservoir for a composition, in particular a composition in fluid form, and a Dosierpumpenvoriques, which is designed so that the composition of a fluid medium, which is at least one washing system supplied, at least temporarily added can.
  • a composition in particular a composition in fluid form
  • a Dosierpumpenvorraum which is designed so that the composition of a fluid medium, which is at least one washing system supplied, at least temporarily added can.
  • the dishwasher comprises at least one washing system and at least one post-rinse system, wherein preferably the at least one washing system is adapted to be used during the execution of the soaking program, wherein the at least one washing system supplies the fluid medium from a tank to the dishwasher can be.
  • at least one Vietnamese hymnsystem is also provided, which is used in particular during a Vietnamese Vietnameseprogramms and on the also a fluid medium can be dispensed, wherein this at least one Vietnamesesystem preferably fresh water can be supplied, optionally with at least temporary admixtures of a rinse aid.
  • washing or rinsing systems in such a particularly preferred dishwashing machine are therefore separate in two ways, with a washing system essentially serving to execute the soaking program and wash program (s) while a post-rinse system is used substantially during a rinse off program.
  • the control device of a dishwasher according to the invention is designed so that the predetermined period .DELTA.t 1 in a range of 1 second to 15 minutes, preferably in a period of 1 second to 5 minutes, more preferably in a period of 1 second to 2 minutes ,
  • These periods have, depending on the field of application of the dishwasher, in particular the commercial dishwasher, the advantage that the period .DELTA.t 1 is selected so that a soaking program is only started for a, if it is necessary, on the other hand, the period .DELTA.t 1 selected so is that this period is not so long that dirt on the dishes to dry before a wash program is started manually.
  • the senor is designed such that it can additionally detect a point in time t 0 at which the door of the dishwasher is opened, wherein the timer is preferably designed such that it measures a period .DELTA.t O since a time t o , to which the door is open, until a time t C , to which the door has been closed again, has passed.
  • control device is designed so that the soaking program of the dishwasher is only started when the last measured period .DELTA.t O between the time t O of the last opening and the time t C of the last closing of the door longer than a predetermined period .DELTA.t 2 is.
  • Such an embodiment has the advantage that in cases where the user sees, for example, only briefly in the washing compartment, for example, to check how high the level of the dishwasher with dishes is already without giving new items to be washed, not automatically started a soaking program becomes.
  • the period .DELTA.t 2 is therefore preferably selected so that it comprises a maximum period in which typically no new items to be washed is inserted into the washing chamber, preferably a period from 0 to 120 seconds, particularly preferably in a period of 0 to 30 seconds, in particular preferably in a period of 0 to 10 seconds. This avoids that a soaking program is started, although this is actually not required after no new items to be washed has been inserted into the washing compartment.
  • a composition which is provided in a storage container of the dishwasher according to the invention and which can be fed to a washing system by means of a metering pump device comprises at least one nonionic surfactant, at least one anionic surfactant, at least one emulsifier, at least one setting agent, and at least one enzyme , wherein the composition is free of phosphates, bleaching agents and alkaline substances.
  • This particular composition significantly increases the desired soaking effect or the effect of preparing for a subsequent rinse program, so that in cases where this composition is at least temporarily supplied to the fluid medium during the soaking program, the subsequent rinse result is significantly improved.
  • the invention further relates to a method for operating a dishwasher, as set forth in claim 11.
  • a method for operating a dishwasher as set forth in claim 11.
  • Fig. 1 schematically shows an embodiment of a dishwasher 10 according to the invention, which comprises a washing container or washing chamber 100.
  • the dishwasher 10 is supplied externally, for example via a connection, drinking water or fresh water, which can be supplied to a boiler 230 via a solenoid valve 210 and water technical safety devices 220.
  • the boiler 230 includes a heating element 235 so that the supplied fresh water can be heated.
  • the dishwasher 10 comprises a storage container 225, in particular for a rinse aid, wherein the contents of this storage container 225 by means of a metering pump 227 can also be supplied to the boiler 230.
  • the dishwasher 10 further comprises a rinsing pump 240, by means of which the fluid medium, usually fresh water, optionally mixed with rinse aid, which is located in the boiler 230, a Vietnamese Pattersonsystem 250 can be supplied so that this Nach Hughessystem 250, the fluid medium on the Can deliver dishes that is located in a Spülkorb 120.
  • a rinsing pump 240 by means of which the fluid medium, usually fresh water, optionally mixed with rinse aid, which is located in the boiler 230, a Vietnamese Craftsystem 250 can be supplied so that this Nach Hughessystem 250, the fluid medium on the Can deliver dishes that is located in a Spülkorb 120.
  • the dishwasher 10 further comprises a tank 300 for receiving a fluid medium, in particular washing liquid, which is discharged in particular via the washing system 360 of the dishwasher 10 in the washing compartment.
  • the dishwasher 10 comprises a screen system 310 for filtering the fluid medium and a heating element 305 which is arranged in the tank 300 in order to heat the fluid medium in the tank.
  • the dishwasher 10 further comprises a container 335 for receiving a fluid medium, in particular a cleaning liquid, wherein the fluid medium via a metering pump 337 can be supplied to the tank 300.
  • the fluid discharged by the washing system 360 is filtered by the aforesaid screen system 310 before entering the tank 300, whereby the retentate can be removed by means of a suds pump 340 while the filtrate enters the tank and by means of a washing pump 320 to a washing system 360 can be supplied.
  • the embodiment of the dishwasher 10 according to the invention shown here further comprises a container 325 for receiving a composition in fluid form, in particular a composition as described above, which can be supplied by means of a metering pump 327 and discharged via the washing system 360 into the washing compartment.
  • This washing system 360 is used in this embodiment, inter alia, for a soaking program in which a fluid medium, in particular water, optionally with at least temporary admixture of the present in the container 325 composition, in particular the enzyme solution, discharged into the washing 100 and in particular to a wash can be, which may preferably be provided in the washing basket 120 or in several washing baskets.
  • the rinsing systems, the rinse-up system 250 and the washing system 360 are shown here as separate systems, but it should be noted that both systems may be provided, for example, in the same rinse arms, either with common dispensing elements or dispensing nozzles or with separate dispensing elements or dispensing nozzles for every system.
  • the dishwasher as in FIG. 1 is shown comprises a door (in Fig. 1 not explicitly shown), which can be opened or closed, so that the washing compartment 100 is accessible and can be used by the user ware in the or the washing baskets 120.
  • the dishwasher further comprises a sensor 420, which can detect a time t C , to which the door is closed, can also detect a time t O , at which the door is opened.
  • the dishwasher 10 further comprises a timer (430) adapted to measure a time period ⁇ t C that has elapsed since a time t C when the door was closed is, has elapsed, and may further measure a time period ⁇ t O that has elapsed from a time t 0 at which the door has been opened to a time t C at which the door has been closed again.
  • a timer 430 adapted to measure a time period ⁇ t C that has elapsed since a time t C when the door was closed is, has elapsed, and may further measure a time period ⁇ t O that has elapsed from a time t 0 at which the door has been opened to a time t C at which the door has been closed again.
  • the dishwasher 10 further includes a start switch 440 for starting a wash program and a selector switch 450 for selecting a first mode of operation or a second mode of operation.
  • the dishwasher 10 further comprises a control device 460, which is designed so that in the event that the selector switch 450, the first operating mode is selected and that within a predetermined period of time .DELTA.t 1 after closing the door, the start switch 440 is not actuated automatically a soaking program of the dishwasher 10 is started.
  • a fluid medium is supplied from the tank 300 via the washing pump 320 to the washing system 360 with the addition of the composition contained in the container 325, the admixture being controlled by the metering pump 327.
  • control device 460 is further configured such that after the prescribed period of time ⁇ t 1 the soaking program of the dishwasher is started only if the last measured period ⁇ t O between the time t O of the last opening and the time t C of the last Closing the door is longer than a predetermined period .DELTA.t 2 .
  • control device 460 is configured such that the period ⁇ t 1 is 4 seconds while the period ⁇ t 2 is 6 seconds.

Description

Die vorliegende Erfindung betrifft eine Geschirrspülmaschine, insbesondere eine gewerbliche Geschirrspülmaschine, mit einem Spülraum zur Aufnahme von Spülgut sowie ein Verfahren zum Betreiben einer solchen Geschirrspülmaschine. Eine solche Geschirrspülmaschine sowie ein solches Verfahren sind beispielsweise aus FR 2 717 670 A1 bekannt. Je nach Verschmutzungsgrad des in eine Geschirrspülmaschine einzubringenden Spülguts ist eine zuverlässige Reinigung schwierig, insbesondere in den Fällen, in denen stark verschmutzte Gegenstände, wie zum Beispiel Töpfe und Pfannen, oder Spülgut mit angebackenen, angebrannten oder angetrockneten Verunreinigungen, gereinigt werden müssen.The present invention relates to a dishwasher, in particular a commercial dishwasher, with a washing compartment for receiving items to be washed and a method for operating such a dishwasher. Such a dishwasher and such a method are for example FR 2 717 670 A1 known. Depending on the degree of soiling of the dishes to be introduced into a dishwasher reliable cleaning is difficult, especially in cases where heavily soiled items, such as pots and pans, or items to be cleaned with baked, burned or dried-on impurities.

In solchen Fällen ist es bekannt, entweder die Gegenstände vorab von Hand zu reinigen oder Einweichbehälter zur Vorbehandlung vorzusehen.In such cases, it is known to either pre-clean the articles by hand or to provide soaking containers for pretreatment.

Basierend auf diesem Stand der Technik ist es eine Aufgabe der vorliegenden Erfindung, eine Geschirrspülmaschine, insbesondere eine gewerbliche Geschirrspülmaschine, und ein Verfahren zum Betreiben einer Geschirrspülmaschine zur Verfügung zu stellen, das zum einen gute Spülergebnisse liefert und zum anderen die Bedienung für den Nutzer vereinfacht.Based on this prior art, it is an object of the present invention to provide a dishwasher, in particular a commercial dishwasher, and a method for operating a dishwasher, which on the one hand provides good dishwashing results and on the other hand simplifies the operation for the user.

Diese Aufgabe wird durch eine Geschirrspülmaschine nach Anspruch 1 und ein Verfahren gemäß Anspruch 11 gelöst. Die Ansprüche 2 bis 10 betreffen besonders bevorzugte Ausführungsformen der erfindungsgemäßen Geschirrspülmaschine nach Anspruch 1, die Ansprüche 12 bis 18 betreffen besonders vorteilhafte Ausführungsformen des Verfahrens gemäß Anspruch 11.This object is achieved by a dishwasher according to claim 1 and a method according to claim 11. The claims 2 to 10 relate to particularly preferred embodiments of the dishwasher according to the invention according to claim 1, the claims 12 to 18 relate to particularly advantageous embodiments of the method according to claim 11.

Gemäß der Erfindung umfasst eine Geschirrspülmaschine einen Spülraum, wobei die Geschirrspülmaschine ferner eine Tür zum Öffnen und Schließen des Spülraumes umfasst. Der Nutzer kann die Tür der Geschirrspülmaschine öffnen, um Spülgut in den Spülraum zu stellen, wobei die Tür nach dem Füllen oder teilweisen Füllen des Spülraums wieder geschlossen werden kann, oder um gereinigtes Spülgut wieder zu entnehmen.According to the invention, a dishwasher comprises a washing compartment, wherein the dishwasher further comprises a door for opening and closing the washing compartment. The user can open the door of the dishwasher to put items to be washed in the washroom, the door after filling or partial filling of the washing compartment can be closed again, or to remove cleaned items again.

Gemäß der Erfindung umfasst die Geschirrspülmaschine einen Startschalter zum Starten eines Spülprogramms und einen Wahlschalter zur Auswahl eines ersten Betriebsmodus oder eines zweiten Betriebsmodus umfasst, bevorzugt beispielsweise in einer Bedieneinheit zusammengefasst. Die Geschirrspülmaschine gemäß der Erfindung umfasst ferner einen Sensor zum Erfassen eines Zeitpunkts tC, zu dem die Tür geschlossen wird, sowie einen Timer, der so ausgebildet ist, dass er einen Zeitraum ΔtC misst, der ab einem Zeitpunkt tC, zu dem die Tür geschlossen wird, vergangen ist. Ferner umfasst die erfindungsgemäße Geschirrspülmaschine eine Steuervorrichtung, die so ausgebildet ist, dass in dem Falle, dass über den Wahlschalter der erste Betriebsmodus gewählt ist und dass innerhalb eines vorbestimmten Zeitraums Δt1 nach einem Schließen der Tür der Startschalter nicht betätigt wird, automatisch ein Einweichprogramm der Geschirrspülmaschine gestartet wird.According to the invention, the dishwasher comprises a start switch for starting a wash program and a selector switch for selecting a first operating mode or a second operating mode, preferably combined, for example, in an operating unit. The dishwasher according to the invention further comprises a sensor for detecting a time t C , to which the door is closed, and a timer, which is designed so that it measures a period .DELTA.t C , from a time t C , to the Door is closed, has passed. Furthermore, the dishwasher according to the invention comprises a control device which is designed so that in the event that the first operating mode is selected via the selector switch and that within a predetermined period .DELTA.t 1 after closing the door of the start switch is not actuated automatically a soaking program Dishwasher is started.

Eine erfindungsgemäße Geschirrspülmaschine hat den Vorteil, dass der Nutzer zwischen einem ersten Betriebsmodus und einem zweiten Betriebsmodus wählen kann, wobei es sich bei dem zweiten Betriebsmodus beispielsweise um einen standardüblichen Betriebsmodus handelt, bei dem der Nutzer wunschgemäß verschiedene Spülprogramme wählt, die die Geschirrspülmaschine zur Verfügung hat, wobei der Nutzer manuell und zu jedem beliebigen Zeitpunkt das oder die entsprechenden Spülprogramme wählen kann und dann mittels des Startschalters das oder die Spülprogramme starten kann.A dishwasher according to the invention has the advantage that the user can choose between a first operating mode and a second operating mode, wherein the second operating mode is, for example, a standard operating mode in which the user desires to select different washing programs that the dishwasher has available in which the user can manually and at any time select the appropriate washing program (s) and then start the washing program (s) by means of the start switch.

Der Nutzer hat bei der erfindungsgemäßen Geschirrspülmaschine jedoch auch die Möglichkeit, grundsätzlich, das heißt nicht nur für einen bestimmten Vorgang oder ein gerade einzustellendes Spülprogramm, beispielsweise das nächstfolgende Spülprogramm, einen ersten Betriebsmodus zu wählen, der insbesondere über mehrere Spülvorgänge, mehrere Stunden oder Tage eingestellt bleibt. Zumindest bei diesem ersten Betriebsmodus wird durch einen Sensor und einen Timer die Zeit gemessen, die nach einem Schließen der Tür vergeht, wobei erfindungsgemäß bei Wahl des ersten Betriebsmodus ein Einweichprogramm der Geschirrspülmaschine automatisch gestartet wird, wenn eine vorbestimmte, bevorzugt auch einstellbare, Zeit Δt1 vergangen ist.In the dishwasher according to the invention, however, the user also has the option, basically, not only of selecting a particular process or a rinse program to be set, for example the next rinse program, to select a first operating mode which is set over several rinses, several hours or days remains. At least in this first mode of operation is measured by a sensor and a timer, the time elapses after closing the door, according to the invention when choosing the first mode of operation, a soaking program of the dishwasher is automatically started when a predetermined, preferably adjustable, time .DELTA.t. 1 has passed.

Wird durch den Nutzer Spülgut in den Spülraum der Geschirrspülmaschine gestellt, die Tür wieder geschlossen und direkt nachfolgend durch den Benutzer der Startschalter zum Starten eines Spülprogramms betätigt, beginnt die Geschirrspülmaschine das gewählte Spülprogramm. Startet der Nutzer jedoch nicht innerhalb des vorbestimmten Zeitraums Δt1 ein Spülprogramm, ist davon auszugehen, dass die Geschirrspülmaschine beispielsweise noch nicht vollständig mit Spülgut gefüllt ist oder der Nutzer aus einem anderen Grund das Spülprogramm noch nicht starten will.If the user places items to be washed in the dishwasher's dishwasher compartment, closes the door again and actuates the start switch for starting a wash program directly afterwards by the user, the dishwasher starts the selected wash program. However, if the user does not start a washing program within the predetermined time period Δt 1 , it can be assumed that the dishwasher is not yet ready, for example is completely filled with items to be washed or the user does not want to start the wash program for another reason yet.

Befindet sich nun die Geschirrspülmaschine in dem ursprünglich gewählten ersten Betriebsmodus, startet die Spülmaschine in diesem Falle automatisch ein Einweichprogramm, ohne dass der Nutzer dieses Einweichprogramm manuell auswählt und/oder startet oder einen anderen Bedienschritt ausführt, außer dem Schließen der Tür der Geschirrspülmaschine.In this case, if the dishwasher is in the originally selected first operating mode, the dishwasher will automatically start a soaking program without the user manually selecting and / or starting this soaking program or performing any other operation than closing the door of the dishwasher.

Die erfindungsgemäße Geschirrspülmaschine hat daher den Vorteil, dass sie, wenn sie sich im ersten Betriebsmodus befindet, automatisch in Abhängigkeit vom Benutzerverhalten ein zusätzliches Einweichprogramm startet oder aber eben nicht startet, nämlich wenn der Nutzer innerhalb eines vorbestimmten Zeitraums Δt1 bereits das eigentliche Spülprogramm oder die eigentlichen Spülprogramme startet.The dishwashing machine according to the invention therefore has the advantage that, when it is in the first operating mode, it automatically starts an additional soaking program depending on the user behavior or does not start, namely if the user already has the actual washing program within a predetermined period Δt 1 actual wash programs starts.

Daher wird sichergestellt, dass ohne zusätzliche Aktivitäten des Nutzers automatisch ein Einweichprogramm gestartet wird, allerdings nur, wenn dieses Einweichprogramm auch notwendig ist, nämlich insbesondere in den Fällen, in denen in den Spülraum eingeladenes Spülgut noch länger dort verbleibt, ohne dass das eigentliche Spülprogramm der Geschirrspülmaschine gestartet wird, so dass verhindert wird, dass die Verschmutzungen an dem Spülgut antrocknen oder so dass bereits angetrocknete Verschmutzung eingeweicht werden, um nach dem Start des eigentlichen Spülprogrammes ein besseres Spülergebnis zu erzielen. Auf der anderen Seite wird ein Einweichprogramm nicht zwangsweise vorgeschaltet, wenn innerhalb einer vorbestimmten Zeitspanne, des vorbestimmten Zeitraums Δt1, das Spülprogramm gestartet wird, so dass die Geschirrspülmaschine in diesen Fällen besonders energieeffizient arbeiten kann.Therefore, it is ensured that without additional activities of the user automatically a soaking program is started, but only if this soaking program is also necessary, namely in particular in cases in which loaded in the washing compartment remains there even longer, without the actual washing program of Dishwasher is started, so that prevents the dirt on the items to dry or so that already dried dirt are soaked in order to achieve a better dishwashing result after the start of the actual wash program. On the other hand, a soaking program is not necessarily preceded when, within a predetermined period of time, the predetermined period .DELTA.t 1 , the wash program is started, so that the dishwasher can work in these cases particularly energy efficient.

Bevorzugt umfasst die erfindungsgemäße Geschirrspülmaschine ein Waschsystem zur Abgabe eines fluiden Mediums während des Durchführens des Einweichprogramms. Dieses Waschsystem kann ein Waschsystem sein, das auch für eines der normalen Spülprogramme verwendet wird, es ist jedoch auch möglich, ein davon getrenntes Waschsystem vorzusehen, das ausschließlich für das Einweichprogramm vorgesehen ist.The dishwasher according to the invention preferably comprises a washing system for dispensing a fluid medium during the execution of the soaking program. This washing system may be a washing system which is also used for one of the normal washing programs, but it is also possible to provide a separate washing system intended exclusively for the soaking program.

Bevorzugt umfasst die erfindungsgemäße Geschirrspülmaschine einen Tank zur Aufnahme eines fluiden Mediums, das zur Durchführung des Einweichprogramms verwendet wird, und eine Pumpenvorrichtung, mittels derer das fluide Medium aus dem Tank dem mindestens einen Waschsystem zugeführt wird.Preferably, the dishwasher according to the invention comprises a tank for receiving a fluid medium, which is used to carry out the soaking program, and a pump device, by means of which the fluid medium from the tank is supplied to the at least one washing system.

Bei einer besonders bevorzugten Ausführungsform umfasst die erfindungsgemäße Geschirrspülmaschine ferner einer Vorratsbehälter für eine Zusammensetzung, insbesondere eine Zusammensetzung in fluider Form, und eine Dosierpumpenvorrichtung, die so ausgebildet ist, dass die Zusammensetzung einem fluiden Medium, das wenigstens einem Waschsystem zuführbar ist, zumindest zeitweise beigemengt werden kann.In a particularly preferred embodiment, the dishwasher according to the invention further comprises a reservoir for a composition, in particular a composition in fluid form, and a Dosierpumpenvorrichtung, which is designed so that the composition of a fluid medium, which is at least one washing system supplied, at least temporarily added can.

Dies hat den Vorteil, dass dem fluiden Medium, das während des Einweichprogramms verwendet wird, zumindest teilweise ein Zusatz, die Zusammensetzung, beigemengt wird, was die Einweichwirkung oder andere, reinigende Wirkungen oder vorbereitende Wirkungen für die Reinigung unterstützt.This has the advantage that, at least in part, an additive, the composition, is added to the fluid medium used during the soaking program, which aids soaking or other cleansing or preparatory effects for cleaning.

Bei einer besonders bevorzugten Ausführungsform umfasst die Geschirrspülmaschine mindestens ein Waschsystem und mindestens ein Nachspülsystem, wobei bevorzugt das mindestens eine Waschsystem so ausgebildet ist, dass es während des Durchführens des Einweichprogramms verwendet wird, wobei dem mindestens einen Waschsystem das fluide Medium aus einem Tank der Spülmaschine zugeführt werden kann. Bei einer besonders bevorzugten Ausführungsform ist auch mindestens ein Nachspülsystem vorgesehen, das insbesondere während eines Nachspülprogramms verwendet wird und über das ebenfalls ein fluides Medium abgegeben werden kann, wobei diesem mindestens einen Nachspülsystem bevorzugt Frischwasser zugeführt werden kann, gegebenenfalls unter zumindest zeitweiser Beimischungen eines Klarspülmittels.In a particularly preferred embodiment, the dishwasher comprises at least one washing system and at least one post-rinse system, wherein preferably the at least one washing system is adapted to be used during the execution of the soaking program, wherein the at least one washing system supplies the fluid medium from a tank to the dishwasher can be. In a particularly preferred embodiment, at least one Nachspülsystem is also provided, which is used in particular during a Nachspülprogramms and on the also a fluid medium can be dispensed, wherein this at least one Nachspülsystem preferably fresh water can be supplied, optionally with at least temporary admixtures of a rinse aid.

Die Wasch- oder Spülsysteme in einer solchen, besonders bevorzugten Geschirrspülmaschine, sind daher in zwei Arten getrennt, wobei ein Waschsystem im Wesentlichen der Durchführung des Einweichprogramms und des oder der Spülprogramme dient, während ein Nachspülsystem im Wesentlichen während eines Nachspülprogramms verwendet wird.The washing or rinsing systems in such a particularly preferred dishwashing machine are therefore separate in two ways, with a washing system essentially serving to execute the soaking program and wash program (s) while a post-rinse system is used substantially during a rinse off program.

Bevorzugt ist die Steuervorrichtung einer erfindungsgemäßen Geschirrspülmaschine so ausgebildet, dass der vorbestimmte Zeitraum Δt1 in einen Bereich von 1 Sekunde bis 15 Minuten, bevorzugt in einem Zeitraum von 1 Sekunde bis 5 Minuten, insbesondere bevorzugt in einem Zeitraum von 1 Sekunde bis 2 Minuten, liegt. Diese Zeiträume haben, je nach Anwendungsgebiet der Geschirrspülmaschine, insbesondere der gewerblichen Geschirrspülmaschine, den Vorteil, dass der Zeitraum Δt1 so gewählt ist, dass ein Einweichprogramm zum einen nur dann gestartet wird, wenn es erforderlich ist, zum anderen der Zeitraum Δt1 so gewählt wird, dass dieser Zeitraum nicht so lange ist, dass Verschmutzungen an dem Spülgut antrocknen, bevor ein Spülprogramm manuell gestartet wird.Preferably, the control device of a dishwasher according to the invention is designed so that the predetermined period .DELTA.t 1 in a range of 1 second to 15 minutes, preferably in a period of 1 second to 5 minutes, more preferably in a period of 1 second to 2 minutes , These periods have, depending on the field of application of the dishwasher, in particular the commercial dishwasher, the advantage that the period .DELTA.t 1 is selected so that a soaking program is only started for a, if it is necessary, on the other hand, the period .DELTA.t 1 selected so is that this period is not so long that dirt on the dishes to dry before a wash program is started manually.

Bei einer besonders bevorzugten Ausführungsform der Geschirrspülmaschine ist der Sensor so ausgelegt, dass er zusätzlich einen Zeitpunkt tO erfassen kann, zu dem die Tür der Geschirrspülmaschine geöffnet wird, wobei der Timer bevorzugt so ausgebildet ist, dass er einen Zeitraum ΔtO misst, der seit einem Zeitpunkt tO, zu dem die Tür geöffnet ist, bis zu einem Zeitpunkt tC, zu dem die Tür wieder geschlossen worden ist, vergangen ist.In a particularly preferred embodiment of the dishwasher, the sensor is designed such that it can additionally detect a point in time t 0 at which the door of the dishwasher is opened, wherein the timer is preferably designed such that it measures a period .DELTA.t O since a time t o , to which the door is open, until a time t C , to which the door has been closed again, has passed.

Bevorzugt ist dabei die Steuervorrichtung so ausgebildet, dass das Einweichprogramm der Geschirrspülmaschine nur dann gestartet wird, wenn der zuletzt gemessene Zeitraum ΔtO zwischen dem Zeitpunkt tO des letzten Öffnens und dem Zeitpunkt tC des letzten Schließens der Tür länger als ein vorbestimmter Zeitraum Δt2 ist.Preferably, the control device is designed so that the soaking program of the dishwasher is only started when the last measured period .DELTA.t O between the time t O of the last opening and the time t C of the last closing of the door longer than a predetermined period .DELTA.t 2 is.

Eine solche Ausführungsform hat den Vorteil, dass in den Fällen, in denen der Nutzer beispielsweise nur kurz in den Spülraum sieht, um beispielsweise zu prüfen, wie hoch der Füllstand der Geschirrspülmaschine mit Spülgut bereits ist, ohne neues Spülgut einzuräumen, nicht automatisch ein Einweichprogramm gestartet wird.Such an embodiment has the advantage that in cases where the user sees, for example, only briefly in the washing compartment, for example, to check how high the level of the dishwasher with dishes is already without giving new items to be washed, not automatically started a soaking program becomes.

Der Zeitraum Δt2 wird daher bevorzugt so gewählt, dass er einen maximalen Zeitraum umfasst, in dem typischerweise kein neues Spülgut in den Spülraum eingesetzt wird, bevorzugt einem Zeitraum von 0 bis 120 Sekunden, insbesondere bevorzugt in einem Zeitraum von 0 bis 30 Sekunden, insbesondere bevorzugt in einem Zeitraum von 0 bis 10 Sekunden. Dadurch wird vermieden, dass ein Einweichprogramm gestartet wird, obwohl dies eigentlich nicht erforderlich ist, nachdem kein neues Spülgut in den Spülraum eingesetzt worden ist.The period .DELTA.t 2 is therefore preferably selected so that it comprises a maximum period in which typically no new items to be washed is inserted into the washing chamber, preferably a period from 0 to 120 seconds, particularly preferably in a period of 0 to 30 seconds, in particular preferably in a period of 0 to 10 seconds. This avoids that a soaking program is started, although this is actually not required after no new items to be washed has been inserted into the washing compartment.

Bei einer besonders bevorzugten Ausführungsform umfasst eine Zusammensetzung, die in einem Vorratsbehälter der erfindungsgemäßen Geschirrspülmaschine vorgesehen ist und die mittels einer Dosierpumpenvorrichtung einem Waschsystem zuführbar ist, mindestens ein nichtionisches Tensid, mindestens ein anionisches Tensid, mindestens einen Emulgator, mindestens ein Stellmittel, und mindestens ein Enzym, wobei die Zusammensetzung frei von Phosphaten, Bleichmitteln und alkalisch wirkenden Substanzen ist.In a particularly preferred embodiment, a composition which is provided in a storage container of the dishwasher according to the invention and which can be fed to a washing system by means of a metering pump device comprises at least one nonionic surfactant, at least one anionic surfactant, at least one emulsifier, at least one setting agent, and at least one enzyme , wherein the composition is free of phosphates, bleaching agents and alkaline substances.

Diese besondere Zusammensetzung erhöht deutlich den gewünschten Einweicheffekt beziehungsweise den Effekt zur Vorbereitung auf ein später folgendes Spülprogramm, so dass in den Fällen, in denen diese Zusammensetzung zumindest zeitweise dem fluiden Medium während des Einweichprogramms zugeführt wird, das nachfolgende Spülergebnis deutlich verbessert wird.This particular composition significantly increases the desired soaking effect or the effect of preparing for a subsequent rinse program, so that in cases where this composition is at least temporarily supplied to the fluid medium during the soaking program, the subsequent rinse result is significantly improved.

Die Erfindung betrifft ferner ein Verfahren zum Betreiben einer Geschirrspülmaschine, wie es in Anspruch 11 dargestellt ist. Im Hinblick auf die Vorteile des Verfahrens gemäß den Ansprüchen 11 bis 17 wird insbesondere auf die obige Beschreibung verwiesen.The invention further relates to a method for operating a dishwasher, as set forth in claim 11. With regard to the advantages of the method according to claims 11 to 17, reference is made in particular to the above description.

Diese und weitere Merkmale und Vorteile der erfindungsgemäßen Geschirrspülmaschine und des erfindungsgemäßen Verfahrens werden anhand der nachfolgenden Beschreibung einer bevorzugten Ausführungsform deutlich.

Fig. 1
zeigt schematisch eine Ausführungsform einer erfindungsgemäßen Geschirrspülmaschine.
These and other features and advantages of the dishwasher according to the invention and the method according to the invention will become apparent from the following description of a preferred embodiment.
Fig. 1
shows schematically an embodiment of a dishwasher according to the invention.

Fig. 1 zeigt schematisch eine Ausführungsform einer erfindungsgemäßen Spülmaschine 10, die einen Spülbehälter beziehungsweise Spülraum 100 umfasst. Fig. 1 schematically shows an embodiment of a dishwasher 10 according to the invention, which comprises a washing container or washing chamber 100.

Der Geschirrspülmaschine 10 wird von extern, beispielsweise über einen Anschluss, Trinkwasser oder Frischwasser zugeführt, das über ein Magnetventil 210 und wassertechnische Sicherungseinrichtungen 220 einem Boiler 230 zugeführt werden kann. Der Boiler 230 umfasst ein Heizelement 235, so dass das zugeführte Frischwasser erhitzt werden kann.The dishwasher 10 is supplied externally, for example via a connection, drinking water or fresh water, which can be supplied to a boiler 230 via a solenoid valve 210 and water technical safety devices 220. The boiler 230 includes a heating element 235 so that the supplied fresh water can be heated.

Zusätzlich umfasst die Geschirrspülmaschine 10 einen Vorratsbehälter 225, insbesondere für ein Klarspülmittel, wobei der Inhalt dieses Vorratsbehälters 225 mittels einer Dosierpumpe 227 ebenfalls dem Boiler 230 zugeführt werden kann.In addition, the dishwasher 10 comprises a storage container 225, in particular for a rinse aid, wherein the contents of this storage container 225 by means of a metering pump 227 can also be supplied to the boiler 230.

Die Geschirrspülmaschine 10 umfasst ferner eine Nachspülpumpe 240, mittels derer das fluide Medium, in der Regel Frischwasser, gegebenenfalls mit Klarspülmittel versetzt, das sich in dem Boiler 230 befindet, einem Nachspülsystem 250 zugeführt werden kann, so dass dieses Nachspülsystem 250 das fluide Medium auf das Spülgut abgeben kann, das sich in einem Spülkorb 120 befindet.The dishwasher 10 further comprises a rinsing pump 240, by means of which the fluid medium, usually fresh water, optionally mixed with rinse aid, which is located in the boiler 230, a Nachspülsystem 250 can be supplied so that this Nachspülsystem 250, the fluid medium on the Can deliver dishes that is located in a Spülkorb 120.

Die Geschirrspülmaschine 10 umfasst ferner einen Tank 300 zur Aufnahme eines fluiden Mediums, insbesondere Waschflüssigkeit, die insbesondere über das Waschsystem 360 der Geschirrspülmaschine 10 in den Spülraum abgegeben wird. Die Geschirrspülmaschine 10 umfasst dabei ein Siebsystem 310 zum Filtern des fluiden Mediums sowie ein Heizelement 305, das in dem Tank 300 angeordnet ist, um das im Tank befindliche fluide Medium aufzuheizen.The dishwasher 10 further comprises a tank 300 for receiving a fluid medium, in particular washing liquid, which is discharged in particular via the washing system 360 of the dishwasher 10 in the washing compartment. The dishwasher 10 comprises a screen system 310 for filtering the fluid medium and a heating element 305 which is arranged in the tank 300 in order to heat the fluid medium in the tank.

Die Geschirrspülmaschine 10 umfasst ferner einen Behälter 335 zur Aufnahme eines fluiden Mediums, insbesondere einer Reinigungsflüssigkeit, wobei das fluide Medium über eine Dosierpumpe 337 dem Tank 300 zugeführt werden kann.The dishwasher 10 further comprises a container 335 for receiving a fluid medium, in particular a cleaning liquid, wherein the fluid medium via a metering pump 337 can be supplied to the tank 300.

Das durch das Waschsystem 360 abgegebene fluide Medium wird, bevor es in den Tank 300 gelangt, durch das vorgenannte Siebsystem 310 gefiltert, wobei das Retentat mittels einer Laugenpumpe 340 abgeführt werden kann, während das Filtrat in den Tank gelangt und mittels einer Waschpumpe 320 einem Waschsystem 360 zugeführt werden kann. Hierdurch entsteht ein Kreislauf des fluiden Mediums, wobei Verunreinigungen und das Retentat mittels einer Laugenpumpe 340 als Abwasser abgeführt werden kann, so dass das für den jeweiligen Spülvorgang genutzte Medium, das Waschwasser, immer einen gewünschten Reinheitsgrad aufweist.The fluid discharged by the washing system 360 is filtered by the aforesaid screen system 310 before entering the tank 300, whereby the retentate can be removed by means of a suds pump 340 while the filtrate enters the tank and by means of a washing pump 320 to a washing system 360 can be supplied. This creates a circulation of the fluid medium, wherein impurities and the retentate can be removed by means of a drain pump 340 as waste water, so that the medium used for the respective flushing process, the wash water, always has a desired degree of purity.

Die hier gezeigte Ausführungsform der erfindungsgemäßen Geschirrspülmaschine 10 umfasst ferner einen Behälter 325 zur Aufnahme einer Zusammensetzung in fluider Form, insbesondere einer Zusammensetzung, wie sie oben beschrieben ist, die mittels einer Dosierpumpe 327 zugeführt und über das Waschsystem 360 in den Spülraum abgegeben werden kann.The embodiment of the dishwasher 10 according to the invention shown here further comprises a container 325 for receiving a composition in fluid form, in particular a composition as described above, which can be supplied by means of a metering pump 327 and discharged via the washing system 360 into the washing compartment.

Dieses Waschsystem 360 wird bei dieser Ausführungsform unter anderem für ein Einweichprogramm verwendet, bei dem ein fluides Medium, insbesondere Wasser, gegebenenfalls mit zumindest zeitweiser Beimengung der in dem Behälter 325 befindlichen Zusammensetzung, insbesondere der Enzymlösung, in den Spülraum 100 und insbesondere auf ein Spülgut abgegeben werden kann, das bevorzugt in dem Spülkorb 120 oder in mehreren Spülkörben vorgesehen sein kann.This washing system 360 is used in this embodiment, inter alia, for a soaking program in which a fluid medium, in particular water, optionally with at least temporary admixture of the present in the container 325 composition, in particular the enzyme solution, discharged into the washing 100 and in particular to a wash can be, which may preferably be provided in the washing basket 120 or in several washing baskets.

Die Spülsysteme, das Nachspülsystem 250 und das Waschsystem 360, sind hier als getrennte Systeme dargestellt, es soll jedoch darauf hingewiesen werden, dass beide Systeme beispielsweise in gleichen Spülarmen vorgesehen sein können, entweder mit gemeinsamen Abgabeelementen beziehungsweise Abgabedüsen oder aber auch mit getrennten Abgabeelementen beziehungsweise Abgabedüsen für jedes System.The rinsing systems, the rinse-up system 250 and the washing system 360 are shown here as separate systems, but it should be noted that both systems may be provided, for example, in the same rinse arms, either with common dispensing elements or dispensing nozzles or with separate dispensing elements or dispensing nozzles for every system.

Die Geschirrspülmaschine, wie sie in Figur 1 gezeigt ist, umfasst eine Tür (in Fig. 1 nicht explizit gezeigt), die geöffnet oder geschlossen werden kann, so dass der Spülraum 100 zugänglich ist und vom Benutzer Spülgut in den oder die Spülkörbe 120 eingesetzt werden kann.The dishwasher, as in FIG. 1 is shown comprises a door (in Fig. 1 not explicitly shown), which can be opened or closed, so that the washing compartment 100 is accessible and can be used by the user ware in the or the washing baskets 120.

Die Geschirrspülmaschine umfasst ferner einen Sensor 420, der einen Zeitpunkt tC erfassen kann, zu dem die Tür geschlossen wird, ferner einen Zeitpunkt tO erfassen kann, zu dem die Tür geöffnet wird.The dishwasher further comprises a sensor 420, which can detect a time t C , to which the door is closed, can also detect a time t O , at which the door is opened.

Die Geschirrspülmaschine 10 umfasst ferner einen Timer (430), der so ausgebildet ist, dass er einen Zeitraum ΔtC messen kann, der ab einem Zeitpunkt tC, zu dem die Tür geschlossen worden ist, vergangen ist, und der ferner einen Zeitraum ΔtO messen kann, der seit einem Zeitpunkt tO, zu dem die Tür geöffnet worden ist, bis zu einem Zeitpunkt tC, zu dem die Tür wieder geschlossen worden ist, vergangen ist.The dishwasher 10 further comprises a timer (430) adapted to measure a time period Δt C that has elapsed since a time t C when the door was closed is, has elapsed, and may further measure a time period Δt O that has elapsed from a time t 0 at which the door has been opened to a time t C at which the door has been closed again.

Die Geschirrspülmaschine 10 umfasst ferner einen Startschalter 440 zum Starten eines Spülprogramms und einen Wahlschalter 450 zur Auswahl eines ersten Betriebsmodus oder eines zweiten Betriebsmodus.The dishwasher 10 further includes a start switch 440 for starting a wash program and a selector switch 450 for selecting a first mode of operation or a second mode of operation.

Die Geschirrspülmaschine 10 umfasst ferner eine Steuervorrichtung 460, die so ausgebildet ist, dass in dem Falle, dass über den Wahlschalter 450 der erste Betriebsmodus gewählt ist und dass innerhalb eines vorbestimmten Zeitraumes Δt1 nach einem Schließen der Tür der Startschalter 440 nicht betätigt wird, automatisch ein Einweichprogramm der Geschirrspülmaschine 10 gestartet wird.The dishwasher 10 further comprises a control device 460, which is designed so that in the event that the selector switch 450, the first operating mode is selected and that within a predetermined period of time .DELTA.t 1 after closing the door, the start switch 440 is not actuated automatically a soaking program of the dishwasher 10 is started.

Bei dieser Ausführungsform wird beim Einweichprogramm ein fluides Medium aus dem Tank 300 über die Waschpumpe 320 dem Waschsystem 360 zugeführt, unter Beimengung der Zusammensetzung, die sich in dem Behälter 325 befindet, wobei die Beimengung mittels der Dosierpumpe 327 gesteuert wird.In this embodiment, in the soaking program, a fluid medium is supplied from the tank 300 via the washing pump 320 to the washing system 360 with the addition of the composition contained in the container 325, the admixture being controlled by the metering pump 327.

Die Steuervorrichtung 460 ist bei dieser Ausführungsform ferner so ausgebildet, dass nach Ablauf des vorgeschriebenen Zeitraums Δt1 das Einweichprogramm der Geschirrspülmaschine nur dann gestartet wird, wenn der zuletzt gemessene Zeitraum ΔtO zwischen dem Zeitpunkt tO des letzten Öffnens und dem Zeitpunkt tC des letzten Schließens der Tür länger als ein vorbestimmter Zeitraum Δt2 ist.In this embodiment, the control device 460 is further configured such that after the prescribed period of time Δt 1 the soaking program of the dishwasher is started only if the last measured period Δt O between the time t O of the last opening and the time t C of the last Closing the door is longer than a predetermined period .DELTA.t 2 .

Bei dieser Ausführungsform ist die Steuervorrichtung 460 so ausgebildet, dass der Zeitraum Δt1 4 Sekunden beträgt, während der Zeitraum Δt2 6 Sekunden beträgt.In this embodiment, the control device 460 is configured such that the period Δt 1 is 4 seconds while the period Δt 2 is 6 seconds.

Claims (18)

  1. A dishwasher (10) with a washing compartment (100) for accommodating items to be washed and with a door for opening and closing the washing compartment (100), wherein the dishwasher (10) further comprises:
    - a start switch (440) for starting a washing program and a selector switch (450) for selecting a first operating mode or a second operating mode,
    - a sensor (420) for detecting a point in time tC, at which the door is closed,
    - a timer (430) which is designed so that it can measure a period of time ΔtC which has elapsed since the point in time tC when the door was closed,
    - a control device (460) which is designed so that, in the event that the first operating mode is selected using the selector switch (450) and that the starter switch (440) is not operated within a given time period Δt1 after the door was closed, the dishwasher's (10) soaking program is automatically started.
  2. The dishwasher according to claim 1, characterised in that it comprises at least one washer system (250, 360) for dispensing a fluid medium during the course of the soaking program.
  3. The dishwasher according to claim 2, characterised in that the dishwasher (10) comprises a tank (300), for accommodating the fluid medium, and a pumping device (320) by means of which the fluid medium may be drawn out of the tank and fed into the at least one washer system (360).
  4. The dishwasher according to one of the preceding claims, characterised in that it comprises a storage tank (325) for a compound, in particular a fluid compound, and a dosing pump device (325) which is designed so that the fluid medium compound which can be fed into the at least one washer system (360) may, at least from time to time, be added.
  5. The dishwasher according to one of the preceding claims, characterised in that it comprises at least one washer system (360) and at least one rinse system (250), wherein the at least one washer system (360) is designed so that a fluid medium may be dispensed from it during the course of a soaking program, wherein the fluid medium may be fed into the at least one washer system (360) from a tank (300) of the dishwasher (10), preferably at least, from time to time, with admixtures of a compound provided in a reservoir (325), wherein the at least one rinse system (250) is designed so that a fluid medium may be dispensed from it during a rinsing program, wherein fresh water may be fed into the at least one rinse system (250), preferably at least, from time to time, with admixtures of a rinsing aid provided in a reservoir (225).
  6. The dishwasher according to one of the preceding claims, characterised in that the control device is designed so that the prescribed time period Δt1 lies in a range from 1 second to 15 minutes, preferably in a time period from 1 second to 5 minutes, particularly preferably in a period from 1 second to 2 minutes.
  7. The dishwasher according to one of the preceding claims, characterised in that the sensor (420) is designed so that it may, in addition, detect a point in time tO at which the dishwasher door is opened, wherein the timer (430) is designed so that it measures a time period ΔtO which has elapsed from a point in time to when the dishwasher door was opened, to a point in time tC when the door was closed again.
  8. The dishwasher according to claim 7, characterised in that the control device (460) is designed so that after the prescribed period of time Δt1 has elapsed following the closing of the door, the dishwasher's (10) soaking program will only be started if the last measured time period ΔtO between the point in time tO of the last door-opening and the point in time tC of the last door-closing is longer than a prescribed period of time Δt2.
  9. The dishwasher according to claim 8, characterised in that the control device (460) is designed so that the prescribed time period Δt2 lies in a range from 0 seconds to 10 seconds, preferably in a time period from 0 seconds to 5 seconds, particularly preferably in a time period from 0 seconds to 3 seconds.
  10. The dishwasher according to one of claims 4 to 9, characterised in that the compound comprises:
    - at least one non-ionic tenside,
    - at least one anionic tenside,
    - at least one emulsifier,
    - at least one suspending agent, and
    - at least one enzyme,
    wherein the compound is free of phosphates, bleaching agents and alkaline substances.
  11. A method for operating a dishwasher (10) with a washing compartment (100) for accommodating items to be washed and with a door for opening and closing the washing compartment (100), wherein the method comprises the following steps:
    - detecting whether the dishwasher (10) is in a first operating mode of at least two operating modes which may be selected by the user,
    - detecting a point in time tC at which the dishwasher door is closed,
    - determining a period of time ΔtC which has elapsed from the point in time tC at which the door was closed,
    - comparing the period of time ΔtC with a prescribed period of time Δt1,
    - starting a soaking program of the dishwasher (10) if the user does not start a wash program within the prescribed period of time Δt1 after closing the door.
  12. The method according to claim 11, characterised in that a fluid medium is dispensed from the dishwasher's washer system (360) during the course of the soaking program.
  13. The method according to claim 12, characterised in that the fluid medium is, at least from time to time, mixed with a fluid compound before the fluid medium is dispensed by the at least one washer system (360).
  14. The method according to claim 13, characterised in that the compound comprises:
    - at least one non-ionic tenside,
    - at least one anionic tenside,
    - at least one emulsifier,
    - at least one suspending agent, and
    - at least one enzyme,
    wherein the compound is free of phosphates, bleaching agents and alkaline substances.
  15. The method according to one of claims 11 to 14, characterised in that the prescribed time period Δt1 lies in a range from 1 second to 15 minutes, preferably in a time period from 1 second to 5 minutes, particularly preferably in a time period from 1 second to 2 minutes.
  16. The method according to one of claims 11 to 15, characterised in that, in addition, a point in time to is detected at which the dishwasher (10) door is opened, wherein, in addition, a time period ΔtO is measured, which has elapsed from the point in time tO at which the door was opened, to the point in time tC at which the door was closed again.
  17. The method according to one of claims 11 to 15, characterised in that, after the prescribed time period Δt1 has elapsed, a soaking program is only started if the last measured time period ΔtO between the point in time tO of the last door-opening and the point in time tC of the last door-closing is longer than a prescribed time period Δt2.
  18. The method according to one of claims 11 to 16, characterised in that the control device (460) is designed so that the prescribed time period Δt2 lies in a range from 0 seconds to 10 seconds, preferably in a time period from 0 seconds to 5 seconds, particularly preferably in a time period from 0 seconds to 3 seconds.
EP16183682.0A 2015-08-27 2016-08-11 Dishwasher and method for operating such a dishwasher Active EP3135178B1 (en)

Priority Applications (1)

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PL16183682T PL3135178T3 (en) 2015-08-27 2016-08-11 Dishwasher and method for operating such a dishwasher

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DE102015114267.8A DE102015114267A1 (en) 2015-08-27 2015-08-27 Dishwasher and method for operating such a dishwasher

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EP3135178B1 true EP3135178B1 (en) 2017-09-20

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EP (1) EP3135178B1 (en)
DE (1) DE102015114267A1 (en)
ES (1) ES2645655T3 (en)
PL (1) PL3135178T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108803382B (en) * 2017-05-02 2022-04-05 博西华电器（江苏）有限公司 Household appliance and control method thereof
CN108803381B (en) 2017-05-02 2022-04-05 博西华电器（江苏）有限公司 Household appliance and control method thereof
DE102018109332A1 (en) * 2018-04-19 2019-10-24 Miele & Cie. Kg Method and device for operating a household appliance and household appliance with a device
CH718027B1 (en) * 2020-11-02 2023-06-15 V Zug Ag Dishwasher with pre-wash program.
BE1030327B1 (en) * 2022-03-11 2023-10-09 Miele & Cie Method for operating a dishwasher

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2634116B2 (en) * 1992-01-31 1997-07-23 株式会社ハーマン Dishwasher
FR2717670A1 (en) * 1994-03-25 1995-09-29 Beauchamp Bruno Soaking and rinsing appts. in dishwashing machine
DE19650971A1 (en) * 1996-12-09 1998-06-18 Willi Kranen Tubular levelling piece for connectors plastered into walls
DK2868251T3 (en) * 2015-01-12 2017-07-10 V-Zug Ag Dishwasher with starter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
ES2645655T3 (en) 2017-12-07
DE102015114267A1 (en) 2017-03-02
PL3135178T3 (en) 2018-02-28
EP3135178A1 (en) 2017-03-01

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