EP2868251A2 - Dishwasher with start delay - Google Patents

Dishwasher with start delay Download PDF

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Publication number
EP2868251A2
EP2868251A2 EP20150000051 EP15000051A EP2868251A2 EP 2868251 A2 EP2868251 A2 EP 2868251A2 EP 20150000051 EP20150000051 EP 20150000051 EP 15000051 A EP15000051 A EP 15000051A EP 2868251 A2 EP2868251 A2 EP 2868251A2
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EP
European Patent Office
Prior art keywords
phase
controller
dishes
wetting
process water
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Granted
Application number
EP20150000051
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German (de)
French (fr)
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EP2868251A3 (en
EP2868251B1 (en
Inventor
Ingo Gau
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V-Zug AG
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V-Zug AG
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Priority to EP15000051.1A priority Critical patent/EP2868251B1/en
Priority to PL15000051T priority patent/PL2868251T3/en
Priority to SI201530066A priority patent/SI2868251T1/en
Priority to DK15000051.1T priority patent/DK2868251T3/en
Publication of EP2868251A2 publication Critical patent/EP2868251A2/en
Publication of EP2868251A3 publication Critical patent/EP2868251A3/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
    • A47L15/0047—Energy or water consumption, e.g. by saving energy or water
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0005—Rinsing phases, e.g. pre-rinsing, intermediate rinsing, final rinsing
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0007—Washing phases
    • 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
    • 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

Definitions

  • the invention relates to a dishwasher with delayed start according to the preamble of claim 1.
  • the controller of the device advances the cleaning program to a waiting phase in order to start the cleaning program at a later time, e.g. during the night, to start.
  • the controller of the apparatus is configured to wet the dishes in the tub at least once upon activation of the startup suspension during the waiting period. As a result, the dishes are moistened, which dissolves dirt later in the actual cleaning program better.
  • the controller is designed to wet the dishes in the tub during the waiting phase in several wetting steps, so that it remains moist. Between the wetting steps are provided rest steps in which the dishes are not wetted, whereby the energy consumption can be reduced.
  • the cleaning program may in a conventional manner have a pre-rinse phase and a cleaning phase, wherein the controller is configured to replace the process water between the pre-rinse phase and the cleaning phase at least partially, in particular at least 80%.
  • the controller may be advantageously configured not to replace the process water between the waiting phase and the pre-rinsing phase, so that the same water is used for wetting in the waiting phase as in the process phase, so that the water consumption is not unnecessarily increased.
  • control is designed to heat the process water in the pre-rinse phase and / or main rinse phase to a lower temperature when the startup delay is activated than in the pre-rinse phase and / or main rinse phase without delayed start.
  • the dishwasher according to Fig. 1 has in a known manner a tub 1 for receiving items to be washed. Inside the tub 1, various spraying means, such as a lower spray arm 2, an upper spray arm 3, and a ceiling nozzle 4 are provided to apply process water to the dishes.
  • a circulation pump 5 serves to convey the process water from a sump 6 of the device below the tub 1 to the spraying means 2, 3 and 4. Between the circulation pump 5 and the spraying means 2, 3, 4, a switching valve 7 is provided, with which the process water can be selectively guided to individual or more of the spray.
  • the device has a drain pump 8, which no longer required process water can be pumped out of the sump 6, and a fresh water supply comprising a valve 9 and a treatment plant 10 to supply the device fresh water.
  • the various actuators of the device in particular the pumps 5, 8, the valves 7 and 9 and the treatment plant 10 are controlled by a controller 11 of the device. Connected to the controller 11 is an input and output unit 12 via which the user can issue commands to the device and view its status.
  • these phases can be varied, e.g. by repeating individual phases or omitting individual phases, etc.
  • the user is normally provided with a plurality of such cleaning programs with slightly different operating parameters for selection, which he can select via the input and output unit 12.
  • the various cleaning programs may be e.g. in the durations of the individual phases, the process water temperatures and other parameters.
  • the user can continue to activate a "start delay" via the input and output unit 12 in order to delay the start of the cleaning program.
  • the user can specify, for example, that the cleaning program does not start until a certain time has elapsed should be, which is usually at least 30 minutes. Additionally or alternatively, the user may also indicate the time at which the cleaning program is to be finished, in which case the controller 11 automatically calculates the length of the startup suspension based on the current time and the expected program duration.
  • Steps (c) and (d) are repeated without changing the process water got to.
  • the sequence of steps (c) and (d) is terminated when it becomes time for the start of the purge phase B of the cleaning program.
  • This pre-rinse phase B is advantageously carried out with the same process water that was also used in the waiting phase for wetting the dishes. If necessary, additional water is added.
  • the spray pressure for wetting and soaking the dishes in the waiting phase A may be lower than that in the pre-rinse and / or the main rinse phase B or C.
  • the rotational speed at the circulation pump in the wetting steps 20-1, 20-2, 20-3 may be lower than a maximum rotational speed in the pre-purge phase B and / or main purge phase C. This reduces energy consumption and noise emissions.
  • the controller 11 may thus be configured to use a lower injection pressure for the process water for wetting the dishes in the waiting phase A than in the pre-rinsing and / or main rinsing phases B, C following the waiting phase A.
  • the cleaning program with upstream waiting phase A or with delayed start is basically carried out with approximately the same parameters as the cleaning program without a delayed start.
  • the temperatures TB, TC of the pre-rinsing and / or main rinsing phase may be somewhat lower because the dirt is ready to be partially dissolved or softened upon entering the pre-rinse phase.
  • the controller 11 is thus configured to control the temperature of the process water in the pre-purge phase B and / or the main purge phase C with deferred startup relative to the corresponding temperature in the pre-purge phase B and / or main purge phase C without a delayed start by a length of the waiting phase A. Reduce size.
  • pre-rinsing and / or main rinsing phase can also be varied depending on the presence and the duration of the waiting phase A.
  • the controller 11 is designed to use at least the same amount of process water in the pre-rinse phase with delayed start as in the pre-rinse phase without delayed start.
  • the wetting of the dishes in the waiting phase A can be activated or deactivated by the user via the input and output unit 12. If it is deactivated, there is no wetting of the dishes during the waiting phase A.

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  • Washing And Drying Of Tableware (AREA)

Abstract

Ein Geschirrspüler bietet die Möglichkeit, das Reinigungsprogramm mit einem Startaufschub zu starten. In diesem Falle wird in einer Wartephase (A) vor dem Reinigungsprogramm das Geschirr in Benetzungsschritten (20-1, 20-2, ...) regelmässig benetzt, um so den Schmutz aufzuweichen oder mindestens teilweise aufzulösen.A dishwasher offers the possibility to start the cleaning program with a delayed start. In this case, in a waiting phase (A) before the cleaning program, the dishes in wetting steps (20-1, 20-2, ...) regularly wetted so as to soften the dirt or at least partially dissolve.

Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft einen Geschirrspüler mit Startaufschub gemäss Oberbegriff von Anspruch 1.The invention relates to a dishwasher with delayed start according to the preamble of claim 1.

Hintergrundbackground

Es ist bekannt, Geschirrspüler mit einem Startaufschub auszustatten. Wenn der Benutzer den Startaufschub aktiviert, stellt die Steuerung des Geräts dem Reinigungsprogramm eine Wartephase voran, um das Reinigungsprogramm erst zu einem späteren Zeitpunkt, z.B. während der Nacht, zu starten.It is known to equip dishwashers with a delayed start. If the user activates the start-up delay, the controller of the device advances the cleaning program to a waiting phase in order to start the cleaning program at a later time, e.g. during the night, to start.

Darstellung der ErfindungPresentation of the invention

Es ist Aufgabe der Erfindung, die Reinigungswirkung eines Geschirrspülers dieser Art zu verbessern.It is an object of the invention to improve the cleaning effect of a dishwasher of this type.

Diese Aufgabe wird vom Geschirrspüler gemäss Anspruch 1 erfüllt. Demgemäss ist die Steuerung des Geräts dazu ausgestaltet, bei Aktivieren des Startaufschubs während der Wartephase das Geschirr im Bottich wenigstens einmal zu benetzen. Dadurch wird das Geschirr angefeuchtet, wodurch sich Schmutz später im eigentlichen Reinigungsprogramm besser löst.This object is achieved by the dishwasher according to claim 1. Accordingly, the controller of the apparatus is configured to wet the dishes in the tub at least once upon activation of the startup suspension during the waiting period. As a result, the dishes are moistened, which dissolves dirt later in the actual cleaning program better.

Vorteilhaft ist die Steuerung dazu ausgestaltet, das Geschirr im Bottich während der Wartephase in mehreren Benetzungsschritten zu benetzen, so dass es feucht bleibt. Zwischen den Benetzungsschritten sind Ruheschritte vorgesehen sind, in welchen das Geschirr nicht benetzt wird, wodurch der Energieverbrauch reduziert werden kann.Advantageously, the controller is designed to wet the dishes in the tub during the waiting phase in several wetting steps, so that it remains moist. Between the wetting steps are provided rest steps in which the dishes are not wetted, whereby the energy consumption can be reduced.

Das Reinigungsprogramm kann in an sich bekannter Weise eine Vorspülphase und eine Reinigungsphase besitzen, wobei die Steuerung dazu ausgestaltet ist, das Prozesswasser zwischen der Vorspülphase und der Reinigungsphase mindestens teilweise, insbesondere zu mindestens zu 80%, zu ersetzen.The cleaning program may in a conventional manner have a pre-rinse phase and a cleaning phase, wherein the controller is configured to replace the process water between the pre-rinse phase and the cleaning phase at least partially, in particular at least 80%.

In diesem Fall kann die Steuerung vorteilhaft dazu ausgestaltet sein, das Prozesswasser zwischen der Wartephase und der Vorspülphase nicht zu ersetzen, so dass dasselbe Wasser zum Benetzen in der Wartephase verwendet wird wie in der Prozessphase, so dass sich der Wasserverbrauch nicht unnötig erhöht.In this case, the controller may be advantageously configured not to replace the process water between the waiting phase and the pre-rinsing phase, so that the same water is used for wetting in the waiting phase as in the process phase, so that the water consumption is not unnecessarily increased.

In einer anderen vorteilhaften Ausführung ist die Steuerung dazu ausgestaltet, bei aktiviertem Startaufschub das Prozesswasser in der Vorspülphase und/oder Hauptspülphase auf eine geringere Temperatur zu erwärmen als in der Vorspülphase und/oder Hauptspülphase ohne Startaufschub. Dadurch wird ausgenutzt, dass der Schmutz dank dem Benetzen in der Wartephase schon aufgeweicht ist und deshalb die Intensität der Reinigung in der Vorspül- bzw. Hauptspülphase reduziert werden kann.In another advantageous embodiment, the control is designed to heat the process water in the pre-rinse phase and / or main rinse phase to a lower temperature when the startup delay is activated than in the pre-rinse phase and / or main rinse phase without delayed start. This makes use of the fact that the dirt is already softened thanks to wetting in the waiting phase and therefore the intensity of the cleaning in the pre-rinsing or main rinsing phase can be reduced.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Ausgestaltungen, Vorteile und Anwendungen der Erfindung ergeben sich aus den abhängigen Ansprüchen und aus der nun folgenden Beschreibung anhand der Figuren. Dabei zeigen:

  • Fig. 1 eine schematische Darstellung einiger Komponenten eines Geschirrspülers und
  • Fig. 2 die Phasen eines Reinigungsprogramms ohne Startaufschub und
  • Fig. 3 die Phasen eines Reinigungsprogramms mit Startaufschub.
Further embodiments, advantages and applications of the invention will become apparent from the dependent claims and from the following description with reference to FIGS. Showing:
  • Fig. 1 a schematic representation of some components of a dishwasher and
  • Fig. 2 the phases of a cleaning program without a delayed start and
  • Fig. 3 the phases of a cleaning program with delayed start.

Wege zur Ausführung der ErfindungWays to carry out the invention

Der Geschirrspüler gemäss Fig. 1 besitzt in bekannter Weise einen Bottich 1 zur Aufnahme von Spülgut. Im Innern des Bottichs 1 sind verschiedene Sprühmittel, wie z.B. ein unterer Sprüharm 2, ein oberer Sprüharm 3 sowie eine Deckendüse 4 vorgesehen, um das Geschirr mit Prozesswasser zu beaufschlagen. Eine Zirkulationspumpe 5 dient dazu, das Prozesswasser aus einem Sumpf 6 des Geräts unterhalb des Bottichs 1 zu den Sprühmitteln 2, 3 und 4 zu fördern. Zwischen der Zirkulationspumpe 5 und den Sprühmitteln 2, 3, 4 ist ein Umschaltventil 7 vorgesehen, mit welchem das Prozesswasser wahlweise zu einzelnen oder mehreren der Sprühmittel geführt werden kann.The dishwasher according to Fig. 1 has in a known manner a tub 1 for receiving items to be washed. Inside the tub 1, various spraying means, such as a lower spray arm 2, an upper spray arm 3, and a ceiling nozzle 4 are provided to apply process water to the dishes. A circulation pump 5 serves to convey the process water from a sump 6 of the device below the tub 1 to the spraying means 2, 3 and 4. Between the circulation pump 5 and the spraying means 2, 3, 4, a switching valve 7 is provided, with which the process water can be selectively guided to individual or more of the spray.

Weiter besitzt das Gerät eine Ablaufpumpe 8, mit welcher nicht mehr benötigtes Prozesswasser aus dem Sumpf 6 abgepumpt werden kann, sowie eine Frischwasserzufuhr umfassend ein Ventil 9 sowie eine Aufbereitungsanlage 10, um dem Gerät Frischwasser zuzuführen.Next, the device has a drain pump 8, which no longer required process water can be pumped out of the sump 6, and a fresh water supply comprising a valve 9 and a treatment plant 10 to supply the device fresh water.

Die verschiedenen Aktoren des Geräts, insbesondere die Pumpen 5, 8 die Ventile 7 und 9 und die Aufbereitungsanlage 10 werden von einer Steuerung 11 des Geräts gesteuert. Mit der Steuerung 11 ist eine Ein- und Ausgabeeinheit 12 verbunden, über welche der Benutzer dem Gerät Befehle erteilen und dessen Status einsehen kann.The various actuators of the device, in particular the pumps 5, 8, the valves 7 and 9 and the treatment plant 10 are controlled by a controller 11 of the device. Connected to the controller 11 is an input and output unit 12 via which the user can issue commands to the device and view its status.

Fig. 2 zeigt die Phasen eines beispielhaft zu verstehenden, normalen Reinigungsprogramms des Geräts, gemäss welchem die Steuerung 11 die Komponenten des Geräts steuert:

  • In einer Vorspülphase B wird Prozesswasser in das Gerät eingelassen, und sodann wird das Geschirr vorgespült, normalerweise ohne Zugabe von Spülmitteln. In der Vorspülphase B kann das Prozesswasser ungeheizt verwendet werden, es kann aber auch geheizt werden, z.B. auf 50°C, beispielsweise wenn der Benutzer eine intensive Reinigung verlangt hat. Am Schluss der Vorspülphase wird das Prozesswasser in den meisten Fällen mindestens teilweise abgelassen.
  • In einer Hauptspülphase C wird neues Prozesswasser in das Gerät eingelassen, und sodann wird das Geschirr unter Zugabe von Spülmittel gereinigt. In der Hauptspülphase C wird das Prozesswasser wiederum geheizt, z.B. auf eine Temperatur TC = 50°C. Am Schluss der Hauptspülphase C wird das Prozesswasser mindestens teilweise abgelassen.
  • In der Zwischenspülphase D wird wiederum neues Prozesswasser in das Gerät eingelassen, und das Geschirr wird ohne Zugabe von Spülmittel gespült, meist ohne Heizen. Sodann wird mindestens ein Teil des Prozesswassers wieder abgelassen.
  • In der Klarspülphase E wird neues Prozesswasser in das Gerät eingelassen und das Geschirr wird unter Zugabe von Klarspülmittel gespült. In der Klarspülphase wird das Prozesswasser z.B. auf eine Temperatur TD = 60°C geheizt. Am Schluss der Klarspülphase E wird das Prozesswasser abgelassen.
  • In der Trockenphase F wird das noch heisse Geschirr getrocknet und zudem langsam abgekühlt.
Fig. 2 Fig. 12 shows the phases of an exemplary routine cleaning program of the apparatus according to which the controller 11 controls the components of the apparatus:
  • In a pre-rinse phase B process water is introduced into the appliance, and then the dishes are pre-rinsed, usually without the addition of detergent. In the pre-rinse phase B, the process water can be used unheated, but it can also be heated, for example to 50 ° C, for example, if the user has requested an intensive cleaning. At the end of the pre-rinse phase the process water is at least partially drained in most cases.
  • In a main purging C new process water is introduced into the device, and then the dishes are cleaned with the addition of detergent. In the main purge phase C, the process water is again heated, for example to a temperature TC = 50 ° C. At the end of the main purging phase C, the process water is at least partially drained.
  • In the intermediate rinsing phase D, new process water is again introduced into the device and the dishes are rinsed without the addition of detergent, usually without heating. Then at least a portion of the process water is drained again.
  • In the rinse phase E new process water is introduced into the device and the dishes are rinsed with the addition of rinse aid. In the rinse phase, the process water is heated, for example to a temperature TD = 60 ° C. At the end of the final rinse phase E, the process water is drained off.
  • In the dry phase F, the still hot dishes are dried and also cooled slowly.

Dem Fachmann ist bekannt, dass diese Phasen variiert werden können, z.B. durch Wiederholung einzelner Phasen oder Weglassen einzelner Phasen, etc. Weiter stehen dem Benutzer normalerweise mehrere solche Reinigungsprogramme mit etwas unterschiedlichen Betriebsparametern zur Auswahl zur Verfügung, welche er über die Ein- und Ausgabeeinheit 12 auswählen kann. Die verschiedenen Reinigungsprogramme können sich z.B. in den Dauern der einzelnen Phasen, den Prozesswassertemperaturen und anderen Parametern unterscheiden.It is known to those skilled in the art that these phases can be varied, e.g. by repeating individual phases or omitting individual phases, etc. Furthermore, the user is normally provided with a plurality of such cleaning programs with slightly different operating parameters for selection, which he can select via the input and output unit 12. The various cleaning programs may be e.g. in the durations of the individual phases, the process water temperatures and other parameters.

Wie erwähnt, kann der Benutzer über die Ein- und Ausgabeeinheit 12 weiter einen "Startaufschub" aktivieren, um den Start des Reinigungsprogramms zu verzögern. Hierzu kann der z.B. angeben, dass das Reinigungsprogramm erst nach Ablauf einer gewissen Zeit gestartet werden soll, wobei diese Zeit normalerweise mindestens 30 Minuten beträgt. Zusätzlich oder alternativ hierzu kann der Benutzer auch den Zeitpunkt angeben, zu welchem das Reinigungsprogramm fertig sein soll, in welchem Falle die Steuerung 11 die Zeitdauer des Startaufschubs selbständig aufgrund der aktuellen Zeit sowie der erwarteten Programmdauer errechnet.As mentioned, the user can continue to activate a "start delay" via the input and output unit 12 in order to delay the start of the cleaning program. For this purpose, the user can specify, for example, that the cleaning program does not start until a certain time has elapsed should be, which is usually at least 30 minutes. Additionally or alternatively, the user may also indicate the time at which the cleaning program is to be finished, in which case the controller 11 automatically calculates the length of the startup suspension based on the current time and the expected program duration.

Fig. 3 zeigt den Ablauf des Prozesses, wie ihn die Steuerung 11 festlegt, wenn der Benutzer auf der Ein- und Ausgabeeinheit 12 die Option "Startaufschub mit Benetzen" auswählt:

  • Zunächst durchläuft der Prozess eine Wartephase A, welche dem gewählten Startaufschub entspricht. Diese umfasst mehrere Schritte:
    1. (a) Zu Beginn der Wartephase A wird Prozesswasser in den Bottich 1 eingelassen. Sodann schaltet die Steuerung 11 in einem ersten Benetzungsschritt 20-1 die Zirkulationspumpe 5 ein, um Prozesswasser auf das Geschirr zu bringen und es so zu benetzen. Der erste Benetzungsschritt dauert z.B. 2 bis 3 Minuten.
    2. (b) An den ersten Benetzungsschritt 20-1 schliesst ein erster Ruheschritt 21-1 an, in welchem die Zirkulationspumpe 5 ausgeschaltet ist. Dieser erste Ruheschritt dauert vorzugsweise mindestens 10 Minuten, z.B. 30 Minuten.
    3. (c) Auf den ersten Ruheschritt 21-1 folgt ein zweiter Benetzungsschritt 20-2. Dieser zweite Benetzungsschritt, sowie alle folgenden Benetzungsschritte dauert z.B. lediglich eine Minute. Da die Benetzung des Geschirrs lediglich aufgefrischt werden muss, dauert der Erste der Benetzungsschritte vorteilhaft länger als die späteren Benetzungsschritte.
    4. (d) Sodann folgt ein zweiter Ruheschritt 21-2, von wiederum vorzugsweise mindestens 10 Minuten, z.B. 30 Minuten.
Fig. 3 shows the flow of the process, as determined by the controller 11, when the user selects on the input and output unit 12 the option "delayed start with wetting":
  • First, the process goes through a waiting phase A, which corresponds to the selected start delay. This includes several steps:
    1. (a) At the beginning of the waiting phase A, process water is introduced into the tub 1. Then, in a first wetting step 20-1, the controller 11 turns on the circulation pump 5 to bring process water onto the dishes and so wet them. The first wetting step lasts for example 2 to 3 minutes.
    2. (b) The first wetting step 20-1 is followed by a first rest step 21-1 in which the circulation pump 5 is turned off. This first resting step preferably lasts at least 10 minutes, eg 30 minutes.
    3. (c) The first rest step 21-1 is followed by a second wetting step 20-2. This second wetting step, as well as all subsequent wetting steps, for example, takes only one minute. Since the wetting of the dishes only needs to be refreshed, the first of the wetting steps takes advantageously longer than the subsequent wetting steps.
    4. (d) Then follows a second rest step 21-2, again preferably at least 10 minutes, for example 30 minutes.

Die Schritte (c) und (d) wiederholen sich, und zwar ohne dass das Prozesswasser gewechselt werden muss. Die Abfolge der Schritte (c) und (d) wird beendet, wenn es Zeit wird für den Start der Vorspülphase B des Reinigungsprogramms. Diese Vorspülphase B wird vorteilhaft mit dem gleichen Prozesswasser durchgeführt, das auch in der Wartephase zum Benetzen des Geschirrs verwendet wurde. Allenfalls wird zusätzlich Wasser hinzugefügt.Steps (c) and (d) are repeated without changing the process water got to. The sequence of steps (c) and (d) is terminated when it becomes time for the start of the purge phase B of the cleaning program. This pre-rinse phase B is advantageously carried out with the same process water that was also used in the waiting phase for wetting the dishes. If necessary, additional water is added.

Der Spritzdruck zum Benetzen und Einweichen des Geschirrs in der Wartephase A kann tiefer sein als jener in der Vorspül- und/oder der Hauptspülphase B bzw. C. Beispielsweise kann am Sprühmittel 3, d.h. am mittleren Sprüharm, in den Benetzungsschritten 20-1, 20-2, 20-3 ein Druck von z.B. 40 mbar anstatt 70 mbar verwendet werden, und am Sprühmittel 2, d.h. am unteren Sprüharm, ein Druck von z.B. 80 mbar anstatt 160 mbar. Hierzu kann die Drehzahl an der Zirkulationspumpe in den Benetzungsschritten 20-1, 20-2, 20-3 tiefer sein als eine maximale Drehzahl in der Vorspülphase B und/oder Hauptspülphase C. Dadurch werden der Energieverbrauch und die Lärmemissionen reduziert.The spray pressure for wetting and soaking the dishes in the waiting phase A may be lower than that in the pre-rinse and / or the main rinse phase B or C. For example, the spraying means 3, i. at the middle spray arm, in the wetting steps 20-1, 20-2, 20-3 a pressure of e.g. 40 mbar instead of 70 mbar, and spray 2, i. at the lower spray arm, a pressure of e.g. 80 mbar instead of 160 mbar. For this purpose, the rotational speed at the circulation pump in the wetting steps 20-1, 20-2, 20-3 may be lower than a maximum rotational speed in the pre-purge phase B and / or main purge phase C. This reduces energy consumption and noise emissions.

Mit anderen Worten kann die Steuerung 11 also dazu ausgestaltet sein, zum Benetzen des Geschirrs in der Wartephase A einen geringeren Spritzdruck für das Prozesswasser zu verwenden als in der auf die Wartephase A folgende Vorspül- und/oder Hauptspülphase B, C.In other words, the controller 11 may thus be configured to use a lower injection pressure for the process water for wetting the dishes in the waiting phase A than in the pre-rinsing and / or main rinsing phases B, C following the waiting phase A.

Das Reinigungsprogramm mit vorgeschalteter Wartephase A bzw. mit Startaufschub wird grundsätzlich mit ungefähr den gleichen Parametern durchgeführt wie das Reinigungsprogramm ohne Startaufschub. Die Temperaturen TB, TC der Vorspül- und/oder Hauptspülphase können jedoch etwas geringer sein, da der Schmutz beim Eintritt in die Vorspülphase bereit teilweise gelöst oder aufgeweicht ist.The cleaning program with upstream waiting phase A or with delayed start is basically carried out with approximately the same parameters as the cleaning program without a delayed start. However, the temperatures TB, TC of the pre-rinsing and / or main rinsing phase may be somewhat lower because the dirt is ready to be partially dissolved or softened upon entering the pre-rinse phase.

Beispielsweise können die Temperaturen TB und/oder TC im Vergleich zu jenen ohne Startaufschub jeweils um einen Betrag ΔT reduziert werden. Die Temperaturreduktion ΔT steigt vorteilhaft mit zunehmender Dauer der Wartephase A an, z.B. wie folgt:

  • Wartephase bis 2 Stunden: ΔT = -2K
  • Wartephase 2 bis 4 Stunden: ΔT = -4K,
  • Wartephase 4 bis 8 Stunden: ΔT = -6K,
  • Wartephase > 8 Stunden: ΔT = -8K,
wobei jedoch die Temperatur TB bzw. TC der Vorspül- und/oder der Hauptspülphase gegen unten auf mindestens 45°C beschränkt wird.For example, the temperatures TB and / or TC can be reduced by an amount ΔT in comparison to those without a delayed start. The temperature reduction ΔT advantageously increases with increasing duration of the waiting phase A, for example as follows:
  • Waiting phase up to 2 hours: ΔT = -2K
  • Waiting phase 2 to 4 hours: ΔT = -4K,
  • Waiting phase 4 to 8 hours: ΔT = -6K,
  • Waiting phase> 8 hours: ΔT = -8K,
however, the temperature TB or TC of the pre-rinse and / or the Hauptpülphase is limited to below at least 45 ° C.

Mit anderen Worten ist die Steuerung 11 also dazu ausgestaltet, die Temperatur des Prozesswassers in der Vorspülphase B und/oder Hauptspülphase C mit Startaufschub gegenüber der entsprechenden Temperatur in der Vorspülphase B und/oder Hauptspülphase C ohne Startaufschub um einen von der Länge der Wartephase A abhängige Grösse zu reduzieren.In other words, the controller 11 is thus configured to control the temperature of the process water in the pre-purge phase B and / or the main purge phase C with deferred startup relative to the corresponding temperature in the pre-purge phase B and / or main purge phase C without a delayed start by a length of the waiting phase A. Reduce size.

Es können auch weitere Parameter der Vorspül- und/oder Hauptspülphase abhängig vom Vorhandensein und der Dauer der Wartephase A variiert werden.Other parameters of the pre-rinsing and / or main rinsing phase can also be varied depending on the presence and the duration of the waiting phase A.

Vorteilhaft ist die Steuerung 11 jedoch dazu ausgestaltet, in der Vorspülphase mit Startaufschub mindestens gleichviel Prozesswasser einzusetzen wie in der Vorspülphase ohne Startaufschub.Advantageously, however, the controller 11 is designed to use at least the same amount of process water in the pre-rinse phase with delayed start as in the pre-rinse phase without delayed start.

Das Benetzen des Geschirrs in der Wartephase A kann vom Benutzer über die Ein- und Ausgabeeinheit 12 aktiviert oder deaktiviert werden. Wird es deaktiviert, so erfolgt keine Benetzung des Geschirrs während der Wartephase A.The wetting of the dishes in the waiting phase A can be activated or deactivated by the user via the input and output unit 12. If it is deactivated, there is no wetting of the dishes during the waiting phase A.

Ist das Benetzen des Geschirrs in der Wartephase A aktiviert, kann dies an der Ein- und Ausgabeeinheit 12 dargestellt werden, z.B. in Form einer Statusmeldung "Einweichen...".If the wetting of the dishes in the waiting phase A is activated, this can be displayed on the input and output unit 12, e.g. in the form of a status message "Soaking ...".

Während in der vorliegenden Anmeldung bevorzugte Ausführungen der Erfindung beschrieben sind, ist klar darauf hinzuweisen, dass die Erfindung nicht auf diese beschränkt ist und in auch anderer Weise innerhalb des Umfangs der folgenden Ansprüche ausgeführt werden kann.While preferred embodiments of the invention are described in the present application, it is to be understood that the invention is not limited thereto and may be embodied otherwise within the scope of the following claims.

Claims (12)

Geschirrspüler mit
einem Bottich (1) zur Aufnahme von zu reinigendem Geschirr,
einer Steuerung (11), welche dazu ausgestaltet ist, das Geschirr im Bottich (1) entsprechend mindestens einem Reinigungsprogramm zu reinigen,
einer Eingabevorrichtung (12), über welche ein Startaufschub aktivierbar ist, wobei die Steuerung (11) dazu ausgestaltet ist, bei Aktivierung des Startaufschubs dem Reinigungsprogramm eine Wartephase (A) voranzustellen,
dadurch gekennzeichnet, dass die Steuerung (11) dazu ausgestaltet ist, während der Wartephase (A) das Geschirr im Bottich (1) mindestens einmal zu benetzen.Dishwasher with
a tub (1) for receiving dishes to be cleaned,
a controller (11) which is designed to clean the dishes in the tub (1) according to at least one cleaning program,
an input device (12), via which a start delay can be activated, wherein the controller (11) is designed to precede the cleaning program with a waiting phase (A) when the start delay is activated,
characterized in that the controller (11) is adapted to wet the dishes in the tub (1) at least once during the waiting phase (A). Geschirrspüler nach Anspruch 1, wobei die Steuerung (11) dazu ausgestaltet ist, während der Wartephase (A) das Geschirr im Bottich (1) in mehreren Benetzungsschritten (20-1, 20-2, ...) zu benetzen, wobei zwischen den Benetzungsschritten (20-1, 20-2, ...) Ruheschritte (21-1, 21-2, ...) vorgesehen sind, in welchen das Geschirr nicht benetzt wird.The dishwasher according to claim 1, wherein the controller (11) is adapted to wet the dishes in the tub (1) during the waiting phase (A) in a plurality of wetting steps (20-1, 20-2, Wetting steps (20-1, 20-2, ...) Resting steps (21-1, 21-2, ...) are provided, in which the dishes are not wetted. Geschirrspüler nach Anspruch 2, wobei ein Erster der Benetzungsschritte (20-1, 20-2, ...) länger dauert als spätere Benetzungsschritte (20-1, 20-2, ...).The dishwasher of claim 2, wherein a first one of the wetting steps (20-1, 20-2, ...) lasts longer than later wetting steps (20-1, 20-2, ...). Geschirrspüler nach einem der Ansprüche 2 oder 3, wobei der Geschirrspüler eine Zirkulationspumpe (5) aufweist, um Wasser aus einem Sumpf unterhalb des Bottichs (1) in Sprühmittel (2, 3, 4) im Bottich (1) des Geräts zu fördern, wobei die Zirkulationspumpe (5) während den Benetzungsschritten (20-1, 20-2, ...) eingeschaltet und während den Ruheschritten ausgeschaltet ist.Dishwasher according to one of claims 2 or 3, wherein the dishwasher comprises a circulation pump (5) to convey water from a sump below the tub (1) into spraying means (2,3,4) in the tub (1) of the appliance the circulation pump (5) is switched on during the wetting steps (20-1, 20-2, ...) and switched off during the rest steps. Geschirrspüler nach einem der Ansprüche 2 bis 4, wobei mindestens ein Teil der Benetzungsschritte (20-1, 20-2, ...) kürzer als mindestens ein Teil der Ruheschritte (21-1, 21-2, ...) ist.Dishwasher according to one of claims 2 to 4, wherein at least a part of the wetting steps (20-1, 20-2, ...) is shorter than at least part of the rest steps (21-1, 21-2, ...). Geschirrspüler nach einem der Ansprüche 2 bis 5, wobei mindestens ein Teil der Benetzungsschritte (20-1, 20-2, ...) weniger als 5 Minuten dauert und/oder mindestens ein der Ruheschritte (21-1, 21-2, ...) mindestens 10 Minuten dauert.Dishwasher according to one of claims 2 to 5, wherein at least a part of the wetting steps (20-1, 20-2, ...) lasts less than 5 minutes and / or at least one of the rest steps (21-1, 21-2,. ..) takes at least 10 minutes. Geschirrspüler nach einem der vorangehenden Ansprüche, wobei das Reinigungsprogramm eine Vorspülphase (B) und eine Hauptspülphase (C) aufweist, wobei die Steuerung (11) dazu ausgestaltet ist, Prozesswasser im Bottich (1) zwischen der Vorspülphase (B) und der Hauptspülphase (C) mindestens teilweise zu ersetzen.A dishwasher according to any one of the preceding claims, wherein the cleaning program comprises a pre-rinse phase (B) and a main rinse phase (C), the controller (11) being adapted to process water in the tub (1) between the pre-rinse phase (B) and the main rinse phase (C ) at least partially. Geschirrspüler nach Anspruch 7, wobei die Steuerung (11) dazu ausgestaltet ist, das Prozesswasser zwischen der Wartephase (A) und der Vorspülphase (B) nicht zu ersetzen.A dishwasher according to claim 7, wherein the controller (11) is adapted to not replace the process water between the waiting phase (A) and the pre-wash phase (B). Geschirrspüler nach einem der Ansprüche 7 oder 8, wobei die Steuerung (11) dazu ausgestaltet ist, in der Vorspülphase (B) mit Startaufschub mindestens gleichviel Prozesswasser einzusetzen wie in der Vorspülphase (B) ohne Startaufschub.Dishwasher according to one of claims 7 or 8, wherein the controller (11) is adapted to use at least as much process water in the pre-rinse phase (B) with delayed start as in the pre-rinse phase (B) without a delayed start. Geschirrspüler nach einem der Ansprüche 7 bis 9, wobei die Steuerung (11) dazu ausgestaltet ist, in der Vorspülphase (B) und/oder Hauptspülphase (C) mit Startaufschub das Prozesswasser auf eine geringere Temperatur zu erwärmen als in der Vorspülphase (B) und/oder Hauptspülphase (C) ohne Startaufschub.Dishwasher according to one of claims 7 to 9, wherein the controller (11) is adapted to heat the process water to a lower temperature in the pre-wash phase (B) and / or Hauptpülphase (C) with a delayed start than in the pre-wash phase (B) and / or main rinse phase (C) without a delayed start. Geschirrspüler nach Anspruch 10, wobei die Steuerung (11) dazu ausgestaltet ist, die Temperatur des Prozesswassers in der Vorspülphase (B) und/oder Hauptspülphase (C) mit Startaufschub gegenüber der entsprechenden Temperatur ohne Startaufschub um einen von der Länge der Wartephase (A) abhängige Grösse zu reduzieren.Dishwasher according to claim 10, wherein the controller (11) is adapted to the temperature of the process water in the pre-wash phase (B) and / or Hauptpülphase (C) with delayed start compared to the corresponding temperature without a start delay by one of the length of the waiting phase (A) reduce dependent size. Geschirrspüler nach einem der Ansprüche 7 bis 11, wobei die Steuerung (11) dazu ausgestaltet ist, zum Benetzen des Geschirrs in der Wartephase (A) einen geringeren Spritzdruck für das Prozesswasser zu verwenden als in der Vorspül- und/oder Hauptspülphase (B, C).Dishwasher according to one of claims 7 to 11, wherein the controller (11) is designed to for wetting the dishes in the waiting phase (A) to use a lower injection pressure for the process water than in the pre-rinsing and / or Hauptspülphase (B, C).
EP15000051.1A 2015-01-12 2015-01-12 Dishwasher with start delay Active EP2868251B1 (en)

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EP15000051.1A EP2868251B1 (en) 2015-01-12 2015-01-12 Dishwasher with start delay
PL15000051T PL2868251T3 (en) 2015-01-12 2015-01-12 Dishwasher with start delay
SI201530066A SI2868251T1 (en) 2015-01-12 2015-01-12 Dishwasher with start delay
DK15000051.1T DK2868251T3 (en) 2015-01-12 2015-01-12 Dishwasher with starter

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EP3135178A1 (en) * 2015-08-27 2017-03-01 Winterhalter Gastronom Gmbh Dishwasher and method for operating such a dishwasher
EP3153086A1 (en) * 2015-10-09 2017-04-12 BSH Hausgeräte GmbH Pre-soak option for dishwashers
CN110623619A (en) * 2019-09-23 2019-12-31 珠海格力电器股份有限公司 Dish washing machine associated control method and device, storage medium and dish washing machine

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DE102022201954A1 (en) * 2022-02-25 2023-08-31 BSH Hausgeräte GmbH Process, computer program product and dishwasher

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DE4021574A1 (en) * 1990-07-06 1992-01-09 Licentia Gmbh Program control for dishwashers - permits low-energy program parts to be carried out during pre-selection time
DE29610371U1 (en) * 1996-06-13 1997-10-16 AEG Hausgeräte GmbH, 90429 Nürnberg Dishwasher with time-delayed wash program start setting option
IT1297274B1 (en) * 1997-09-03 1999-08-09 Smeg Spa DISHWASHER THAT REALIZES A PERFECTED OPERATING CYCLE

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3135178A1 (en) * 2015-08-27 2017-03-01 Winterhalter Gastronom Gmbh Dishwasher and method for operating such a dishwasher
EP3153086A1 (en) * 2015-10-09 2017-04-12 BSH Hausgeräte GmbH Pre-soak option for dishwashers
US9661980B2 (en) 2015-10-09 2017-05-30 Bsh Home Appliances Corporation Pre-soak option for dishwashers
CN110623619A (en) * 2019-09-23 2019-12-31 珠海格力电器股份有限公司 Dish washing machine associated control method and device, storage medium and dish washing machine

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EP2868251A3 (en) 2015-07-29
PL2868251T3 (en) 2017-10-31
EP2868251B1 (en) 2017-04-19
SI2868251T1 (en) 2017-07-31

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