EP3381346B1 - Short washing program for a dish rack - Google Patents

Short washing program for a dish rack Download PDF

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Publication number
EP3381346B1
EP3381346B1 EP17000538.3A EP17000538A EP3381346B1 EP 3381346 B1 EP3381346 B1 EP 3381346B1 EP 17000538 A EP17000538 A EP 17000538A EP 3381346 B1 EP3381346 B1 EP 3381346B1
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EP
European Patent Office
Prior art keywords
process water
washing program
minutes
control device
heating
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EP17000538.3A
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German (de)
French (fr)
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EP3381346A1 (en
Inventor
Vanja HARTER
Ingo Gau
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V-Zug AG
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V-Zug AG
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Priority to SI201731233T priority Critical patent/SI3381346T1/en
Priority to EP17000538.3A priority patent/EP3381346B1/en
Publication of EP3381346A1 publication Critical patent/EP3381346A1/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
    • A47L15/0057—Cleaning of machines parts, e.g. removal of deposits like lime scale or proteins from piping or tub
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4276—Arrangements to detect or remove bad smells or odours
    • 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
    • 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
    • A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
    • 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
    • A47L2501/06—Water heaters
    • 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
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • 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
    • 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
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/02—Pressurised cleaning liquid delivered by a pump

Definitions

  • the dishwasher can have a door with a door opener, the controller is designed to push open the door immediately or indirectly after the end of the heating phase by means of the door opener, and/or wherein the controller is designed to clean only one floor area in the short cleaning program.
  • the controller can be configured to output a recommendation for starting the short cleaning program via an output device depending on a number of registered door openings, a measured length of time since the last operation of a dishwashing program, in particular the short cleaning program, and/or an odor level detected by means of an odor sensor system .
  • the user is informed via a visual display that he should carry out the short cleaning program.
  • the short cleaning program it is also possible for the short cleaning program to be started automatically by the control.
  • the process water in the short cleaning program is at least partially heated to at least 45°C, in particular at least 50°C, during the heating phase.
  • the short cleaning program can have a single heating phase and/or a temperature of the process water being increased monotonically, in particular strictly monotonically, during the heating phase.
  • the short cleaning program can last a maximum of 20 minutes, in particular a maximum of 15 minutes, in particular a maximum of 10 minutes, and/or the heating device can be used in the short cleaning program for at least 5 minutes, in particular at least 7 minutes, and/or for a maximum of 10 minutes, in particular a maximum of 8 minutes operate.

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  • Washing And Drying Of Tableware (AREA)

Description

Gebiet der Erfindungfield of invention

Die Erfindung betrifft einen Geschirrspüler, insbesondere einen Haushaltsgeschirrspüler, sowie ein Verfahren gemäss dem Oberbegriff der unabhängigen Ansprüche. Der Geschirrspüler umfasst einen Bottich zur Aufnahme von Geschirr und eine Heizvorrichtung zur Erwärmung von Prozesswasser. Weiter umfasst der Geschirrspüler eine Steuerung aufweisend ein Kurzreinigungsprogramm mit einer Heizphase zur Reinigung des Geschirrs.The invention relates to a dishwasher, in particular a household dishwasher, and a method according to the preamble of the independent claims. The dishwasher includes a tub for holding dishes and a heater for heating process water. The dishwasher also includes a controller having a short cleaning program with a heating phase for cleaning the dishes.

Hintergrundbackground

In einem Einpersonenhaushalt können mehrere Tage vergehen bis der Geschirrspüler mit Geschirr vollständig beladen ist, sodass der Benutzer das Reinigungsprogramm auslöst. Bei einer solch langen Zeitspanne führt angeschmutztes Geschirr zu hygienischen Problemen. Im Allgemeinen zeigt sich, dass nach ca. zwei Tagen die mikrobielle Aktivität soweit fortgeschritten ist, dass deutliche Geruchsbildung entsteht und Schimmelbildung langsam sichtbar werden kann. Diesem Problem kann teilweise abgeholfen werden, indem der Benutzer die Türe des Geschirrspülers geöffnet lässt, damit ein Luftaustausch mit dem Raum stattfindet. Dies kann allerdings auch vergessen gehen oder gewisse Benutzer schliessen die Türe nach dem Einfüllen von neuem verschmutztem Geschirr immer.In a one-person household, it can take several days for the dishwasher to be fully loaded with dishes so that the user initiates the cleaning program. With such a long period of time, soiled dishes lead to hygienic problems. In general, it can be seen that after about two days the microbial activity has progressed to such an extent that a clear odor develops and mold formation can slowly become visible. This problem can be partially solved by allowing the user to leave the dishwasher door open to allow air exchange with the dishwasher space takes place. However, this can also be forgotten or certain users always close the door after loading new dirty dishes.

WO 2006/082552 offenbart ein Kurzreinigungsprogramm, welches alle oder nur einige Schritte des Hauptwaschprogramms aufweist und mit einem Minimum an Energieverbrauch auskommt. Das Reinigungswasser kann während des Kurzreinigungsprogramms auf eine tiefe Temperatur aufgeheizt werden. WO 2006/082552 discloses a short cleaning program which has all or only a few steps of the main wash program and manages with a minimum of energy consumption. The cleaning water can be heated to a low temperature during the short cleaning program.

Darstellung der ErfindungPresentation of the invention

Es ist Aufgabe der Erfindung, in einem Geschirrspüler eine geeignete Massnahme zur Verbesserung der Hygiene vorzusehen.The object of the invention is to provide a suitable measure for improving hygiene in a dishwasher.

Diese Aufgabe wird vom Geschirrspüler gemäss dem unabhängigen Vorrichtungsanspruch erfüllt. Demgemäss umfasst der Geschirrspüler einen Bottich zur Aufnahme von Geschirr, eine Heizvorrichtung zum Heizen von Prozesswasser und eine Steuerung aufweisend ein Kurzreinigungsprogramm mit einer Heizphase zur Reinigung des Geschirrs. Die Steuerung ist dazu ausgestaltet, während des gesamten Kurzreinigungsprogramms das Prozesswasser nicht zu ersetzen und mittels der Heizvorrichtung das Prozesswasser während der Heizphase zu heizen. Die Steuerung ist dazu ausgestaltet, das Prozesswasser in der Heizphase zumindest teilweise auf mindestens 35°C aufzuheizen.This task is fulfilled by the dishwasher according to the independent device claim. Accordingly, the dishwasher includes a tub for accommodating dishes, a heating device for heating process water and a controller having a short cleaning program with a heating phase for cleaning the dishes. The controller is designed not to replace the process water during the entire short cleaning program and to heat the process water during the heating phase by means of the heating device. The controller is designed to at least partially heat the process water to at least 35° C. during the heating phase.

Unter einem Programm ist eine in sich geschlossene Einheit einer Folge von Anweisungen zu verstehen. Bei einem Geschirrspüler wird ein Programm insbesondere durch den Benutzer ausgelöst. Ein Programm stellt somit nicht eine Phase eines längeren und übergeordneten Programms dar. Vor und nach der Durchführung des Programms steht der Geschirrspüler normalerweise still.A program is a self-contained unit of a sequence of instructions. In a dishwasher, a program is triggered in particular by the user. A program is therefore not a phase of a longer and higher-level program. Before and after the program has been carried out, the dishwasher is normally idle.

Unter dem Merkmal "das Prozesswasser nicht zu ersetzen" ist grundsätzlich gemeint, dass sobald Prozesswasser aus dem Prozesswasserkreislauf abgelassen wird, darf kein neues Prozesswasser dem Prozesswasserkreislauf zugeführt werden. Wenn hiervon in geringen Wassermengen abgewichen wird, ist das Merkmal trotzdem noch erfüllt.The feature "not to replace the process water" basically means that as soon as process water is drained from the process water cycle, no new process water may be added to the process water cycle. If there is a deviation from this in small amounts of water, the feature is still fulfilled.

Die Heizphase entspricht derjenigen Phase, während derer die Heizvorrichtung aktiviert ist. Sie ist Bestandteil des Kurzreiniungsprogramms.The heating phase corresponds to the phase during which the heating device is activated. It is part of the short cleaning program.

Mittels diesem Kurzreinigungsprogramm kann die Hygiene im Geschirrspüler verbessert werden. Ohne dass ein umfassendes Reinigungsprogramm durchlaufen werden muss, kann das Geschirr von Zeit zu Zeit mit aufgeheiztem Wasser grob abgewaschen werden, sodass der grösste Teil des Schmutzes mit verhältnismässig geringem Energieaufwand entfernt werden kann. Der Benutzer kann dieses Programm beispielsweise im Abstand von zwei bis drei Tagen durchführen, wobei das Geschirr nach Beendigung des Kurzreinigungsprogramms im Bottich verbleibt. Das umfassende, energieaufwändige Reinigungsprogramm führt der Benutzer erst dann durch, wenn der Geschirrspüler vollständig mit Geschirr beladen ist. Das Heizen des Prozesswassers ermöglicht auch, hartnäckigeren Schmutz vom Geschirr zu lösen.This short cleaning program can improve hygiene in the dishwasher. Without having to go through a comprehensive cleaning program, the dishes can be roughly washed with heated water from time to time, so that most of the dirt can be removed with relatively little energy expenditure. The user can carry out this program, for example, at intervals of two to three days, with the dishes remaining in the tub after the end of the short cleaning program. The user only carries out the comprehensive, energy-intensive cleaning program when the dishwasher is fully loaded with dishes. Heating the process water also makes it possible to loosen more stubborn dirt from the dishes.

Das Prozesswasser wird während des Kurzreinigungsprogramms nicht ausgewechselt. Damit handelt es sich um ein sogenanntes Ein-Bad Verfahren.The process water is not replaced during the short cleaning program. This is a so-called one-bath process.

Auf eine nachgeschaltete Klarspülphase mit frischem Prozesswasser wird beim Kurzreinigungsprogramm verzichtet. Die Verschmutzung am Geschirr kann deshalb nicht vollständig entfernt werden. Dies ist auch nicht nötig, zumal das Kurzreinigungsprogramm lediglich dazu dient, den groben Schmutz vom Geschirr zu entfernen, um Geruchsbildungen im Bottich möglichst zu verhindern. Das Kurzreinigungsprogramm ist dafür im Verhältnis zum umfassenden Reinigungsprogramm energiesparender.There is no subsequent rinsing phase with fresh process water in the short cleaning program. The dirt on the dishes can therefore not be completely removed. This is also not necessary, especially since the short cleaning program only serves to remove the coarse dirt from the dishes in order to prevent odors from forming in the tub as far as possible. The short cleaning program is more energy-efficient than the comprehensive cleaning program.

Die Steuerung ist dazu ausgestaltet, das Prozesswasser in der Heizphase zumindest teilweise auf mindestens 35°C, insbesondere mindestens 45°C, insbesondere mindestens 50°C, aufzuheizen. Je höher die Temperatur gewählt wird, umso einfacher lassen sich auch Fette am Geschirr entfernen. Dadurch kann die Geruchs- und Schimmelbildung noch besser vermieden werden.The controller is designed to the process water in the heating phase at least partially to at least 35 ° C, in particular at least 45 ° C, in particular at least 50°C. The higher the temperature selected, the easier it is to remove grease from the dishes. As a result, the formation of odors and mold can be avoided even better.

Im Weiteren kann das Kurzreinigungsprogramm eine einzige Heizphase aufweisen. D.h. die Heizvorrichtung wird während des Kurzreinigungsprogramm nur einmal an- und ausgeschaltet. Kurze Unterbrechungen sind möglich. Dadurch wird das Prozesswasser mit einem möglichst geringen Energieaufwand geheizt.Furthermore, the short cleaning program can have a single heating phase. This means that the heating device is only switched on and off once during the short cleaning program. Brief interruptions are possible. As a result, the process water is heated with as little energy as possible.

In einer bevorzugten Ausführung kann die Steuerung derart ausgestaltet sein, dass während der Heizphase eine Temperatur des Prozesswassers monoton, insbesondere streng monoton, erhöht wird.In a preferred embodiment, the controller can be designed in such a way that a temperature of the process water is increased monotonically, in particular strictly monotonically, during the heating phase.

Mit Vorteil kann die Steuerung dazu ausgestaltet sein, dem Prozesswasser im Kurzreinigungsprogramm Reinigungsmittel zuzusetzen. Dadurch kann die Verschmutzung des Geschirrs noch besser entfernt werden.Advantageously, the controller can be designed to add cleaning agents to the process water in the short cleaning program. This allows the dirt on the dishes to be removed even better.

Im Weiteren kann das Kurzreinigungsprogramm eine Betriebslänge von maximal 20 Minuten, insbesondere maximal 15 Minuten, insbesondere maximal 10 Minuten, aufweisen, und/oder die Steuerung kann dazu ausgestaltet sein, die Heizvorrichtung im Kurzreinigungsprogramm während mindestens 5 Minuten, insbesondere mindestens 7 Minuten, und/oder während maximal 10 Minuten, insbesondere maximal 8 Minuten zu betreiben. Aufgrund der kurzen Betriebslänge und durch den kurzen Betrieb der Heizvorrichtung verbraucht das Kurzreinigungsprogramm verhältnismässig wenig Energie.Furthermore, the short cleaning program can have an operating length of a maximum of 20 minutes, in particular a maximum of 15 minutes, in particular a maximum of 10 minutes, and/or the controller can be designed to switch the heating device on in the short cleaning program for at least 5 minutes, in particular at least 7 minutes, and/or or to operate for a maximum of 10 minutes, in particular a maximum of 8 minutes. Due to the short operating time and the short operation of the heating device, the short cleaning program consumes relatively little energy.

In einer bevorzugten Ausführung kann der Geschirrspüler eine Frischwasserzufuhr aufweisen, wobei die Steuerung derart ausgestaltet ist, dass die Frischwasserzufuhr im Kurzreinigungsprogramm während eines einzigen Zeitabschnitts, insbesondere zu Beginn des Kurzreinigungsprogramms, geöffnet ist.In a preferred embodiment, the dishwasher can have a fresh water supply, with the controller being designed in such a way that the fresh water supply is open during a single time segment in the short cleaning program, in particular at the beginning of the short cleaning program.

Mit Vorteil kann der Geschirrspüler eine Türe mit einem Türaufstosser aufweisen, wobei die Steuerung dazu ausgestaltet ist, die Türe unmittelbar oder mittelbar nach Beendigung der Heizphase mittels dem Türaufstosser aufzustossen, und/oder wobei die Steuerung dazu ausgestaltet ist, im Kurzreinigungsprogramm nur einen Bodenbereich zu reinigen.Advantageously, the dishwasher can have a door with a door opener, the controller is designed to push open the door immediately or indirectly after the end of the heating phase by means of the door opener, and/or wherein the controller is designed to clean only one floor area in the short cleaning program.

Wird im Kurzreinigungsprogramm nur der Bodenbereich des Geschirrspülers gereinigt, so wird darauf verzichtet, das Geschirr über Sprüharme zu besprühen. Dabei wird davon ausgegangen, dass der grösste Teil der Verschmutzung von selbst vom Geschirr abfällt und im Bodenbereich landet. Deshalb genügt eine Reinigung des Bodenbereichs, um die Geruchs- und Schimmelbildung möglichst zu verhindern.If only the bottom area of the dishwasher is cleaned in the short cleaning program, the dishes are not sprayed with spray arms. It is assumed that most of the dirt falls off the dishes by itself and ends up on the floor. It is therefore sufficient to clean the floor area in order to prevent the formation of odors and mold as much as possible.

Im Weiteren kann die Steuerung dazu ausgestaltet sein, über eine Ausgabevorrichtung in Abhängigkeit einer Anzahl registrierter Türöffnungen, einer gemessenen Zeitdauer seit einem letzten Betrieb eines Geschirrspülprogramms, insbesondere des Kurzreinigungsprogramms, und/oder eines mittels einer Geruchssensorik detektierten Geruchsniveaus, eine Empfehlung zum Starten des Kurzreinigungsprogramms auszugeben. Beispielsweise wird dem Benutzer über eine optische Anzeige mitgeteilt, dass er das Kurzreinigungsprogramm durchführen soll. Optional ist es auch möglich, dass das Kurzreinigungsprogramm von der Steuerung automatisch gestartet wird.Furthermore, the controller can be configured to output a recommendation for starting the short cleaning program via an output device depending on a number of registered door openings, a measured length of time since the last operation of a dishwashing program, in particular the short cleaning program, and/or an odor level detected by means of an odor sensor system . For example, the user is informed via a visual display that he should carry out the short cleaning program. Optionally, it is also possible for the short cleaning program to be started automatically by the control.

In einer besonderen Ausführung kann die Steuerung neben dem Kurzreinigungsprogramm ein Hauptreinigungsprogramm aufweisen, welches eine Hauptreinigungsphase und eine Klarspülphase umfasst. Die Steuerung ist dazu ausgestaltet, zwischen Hauptreinigungsphase und Klarspülphase das Prozesswasser zu ersetzen, und insbesondere während der Klarspülphase dem Prozesswasser Klarspülmittel beizumischen.In a special embodiment, the controller can have a main cleaning program in addition to the short cleaning program, which includes a main cleaning phase and a final-rinse phase. The controller is designed to replace the process water between the main cleaning phase and the final-rinse phase, and in particular to add final-rinse agent to the process water during the final-rinse phase.

Im Weiteren kann die Steuerung dazu ausgestaltet sein, in einem letzten Schritt im Kurzreinigungsprogramm mittels einer Trocknungsvorrichtung zu trocknen.Furthermore, the controller can be designed to dry in a last step in the short cleaning program using a drying device.

Die eingangs erwähnte Aufgabe wird auch von einem Verfahren gemäss dem unabhängigen Verfahrensanspruch gelöst. Demgemäss handelt es sich um ein Verfahren zur Reinigung von Geschirr in einem Geschirrspüler. Das Verfahren umfasst einen Bottich zur Aufnahme des Geschirrs, eine Heizvorrichtung zum Heizen von Prozesswasser und eine Steuerung aufweisend ein Kurzreinigungsprogramm zur Reinigung des Geschirrs. Das Prozesswasser wird während des gesamten Kurzreinigungsprogramms nicht ersetzt und es wird mittels der Heizvorrichtung während einer Heizphase geheizt. Das Prozesswasser wird im Kurzreinigungsprogramm während der Heizphase zumindest teilweise auf mindestens 35° geheizt.The object mentioned at the outset is also achieved by a method according to the independent method claim. Accordingly, it is a method for cleaning dishes in a dishwasher. The method includes a tub for accommodating the dishes, a heating device for heating process water and a controller having a short cleaning program for cleaning the dishes. The process water is not replaced during the entire short cleaning program and it is heated by the heating device during a heating phase. In the short cleaning program, the process water is at least partially heated to at least 35° during the heating phase.

Insbesondere wird das Prozesswasser im Kurzreinigungsprogramm während der Heizphase zumindest teilweise auf mindestens 45°C, insbesondere mindestens 50°C, aufgeheizt.In particular, the process water in the short cleaning program is at least partially heated to at least 45°C, in particular at least 50°C, during the heating phase.

In einer bevorzugten Ausführungsform kann das Kurzreinigungsprogramm eine einzige Heizphase aufweisen und/oder wobei während der Heizphase eine Temperatur des Prozesswassers monoton, insbesondere streng monoton, erhöht wird.In a preferred embodiment, the short cleaning program can have a single heating phase and/or a temperature of the process water being increased monotonically, in particular strictly monotonically, during the heating phase.

Im Weiteren kann das Kurzreinigungsprogramm maximal 20 Minuten, insbesondere maximal 15 Minuten, insbesondere maximal 10 Minuten, dauern und/oder die Heizvorrichtung kann im Kurzreinigungsprogramm während mindestens 5 Minuten, insbesondere mindestens 7 Minuten, und/oder während maximal 10 Minuten, insbesondere maximal 8 Minuten betrieben werden.Furthermore, the short cleaning program can last a maximum of 20 minutes, in particular a maximum of 15 minutes, in particular a maximum of 10 minutes, and/or the heating device can be used in the short cleaning program for at least 5 minutes, in particular at least 7 minutes, and/or for a maximum of 10 minutes, in particular a maximum of 8 minutes operate.

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 den Verlauf eines Kurzreinigungsprogramms.
Further configurations, advantages and applications of the invention result from the dependent claims and from the following description based on the figures. show:
  • 1 a schematic representation of some components of a dishwasher and
  • 2 the course of a short cleaning program.

Weg zur Ausführung der Erfindungway of carrying out the invention

Der Haushalt-Geschirrspüler in Fig. 1 besitzt in bekannter Weise einen Bottich 1 zur Aufnahme von Geschirr. Im Innern des Bottichs 1 sind verschiedene Sprühmittel angeordnet, wie z.B. ein unteres Sprühmittel 2 und ein mittleres Sprühmittel 3 in Form von Sprüharmen und ein oberes Sprühmittel 4, um das Geschirr mit Prozesswasser zu besprühen bzw. zu beaufschlagen. Eine Zirkulationspumpe 5 dient dazu, das Prozesswasser über eine Zirkulationsleitung aus einem Bodenbereich 6 des Bottichs 1 zu den Sprühmitteln 2, 3 und 4 zu fördern. An der Zirkulationsleitung ist eine Heizvorrichtung 7 vorgesehen, um das Prozesswasser auf eine gewünschte Temperatur aufzuheizen.The household dishwasher in 1 has in a known manner a vat 1 for receiving crockery. Various spraying means are arranged inside the tub 1, such as a lower spraying means 2 and a middle spraying means 3 in the form of spray arms and an upper spraying means 4, in order to spray or apply process water to the dishes. A circulation pump 5 is used to convey the process water via a circulation line from a bottom area 6 of the tub 1 to the spraying means 2, 3 and 4. A heater 7 is provided on the circulation line to heat the process water to a desired temperature.

Weiter weist das Gerät eine Ablaufpumpe 8 auf, mit welcher nicht mehr benötigtes Prozesswasser aus dem Bodenbereich 6 des Bottichs 1 abgepumpt werden kann, sowie eine Frischwasserzufuhr 11, um dem Haushalt-Geschirrspüler Frischwasser zuzuführen.The device also has a drain pump 8, with which process water that is no longer required can be pumped out of the bottom area 6 of the tub 1, and a fresh water supply 11, in order to supply fresh water to the domestic dishwasher.

Die verschiedenen Aktoren des Geräts, insbesondere die Pumpen 5 und 8 sowie die Heizvorrichtung 7, werden von einer Steuerung 9 des Geräts gesteuert. Mit der Steuerung 9 ist ein Eingabemittel 10 verbunden, über welches der Benutzer dem Gerät Befehle erteilen und dessen Status einsehen kann. Weiterhin kann der Haushalt-Geschirrspüler eine Geruchssensorik 12 aufweisen, zum Detektieren eines Geruchsniveaus innerhalb des Bottichs, und/oder auch einen Reinigungsmitteltank 13, um dem Prozesswasser Reinigungsmittel zuzuführen.The various actuators of the device, in particular the pumps 5 and 8 and the heating device 7, are controlled by a controller 9 of the device. An input means 10 is connected to the controller 9, via which the user can issue commands to the device and view its status. Furthermore, the household dishwasher can have an odor sensor system 12 for detecting an odor level inside the tub, and/or also a cleaning agent tank 13 in order to add cleaning agent to the process water.

Die Steuerung 9 besitzt mehrere Programme, über welche Verfahrensabläufe gesteuert werden können, beispielsweise ein Hauptreinigungsprogramm, ein wassersparendes, ein geschirrschonendes oder ein intensives Reinigungsprogramm sowie das nachfolgend beschriebene Kurzzeitprogramm.The controller 9 has several programs that can be used to control the process sequences, For example, a main cleaning program, a water-saving, a dishwashing-friendly or an intensive cleaning program as well as the short-time program described below.

Fig. 2 zeigt ein beispielhaft zu verstehendes Kurzreinigungsprogramm, gemäss welchem die Steuerung 10 die Komponenten des Geräts steuert. Das obere Diagramm zeigt die Prozesswassertemperatur T und das untere Diagramm zeigt die sich im Bottich befindliche Prozesswassermenge M.

  • In einer ersten Phase des Kurzreinigungsprogramms, ca. während der ersten Minute, wird das Prozesswasser dem Bottich über die Frischwasserzufuhr 11 zugeführt. Die Gesamtwassermenge beträgt beispielsweise zwischen 2.5 bis 6 Liter.
  • Sobald das Prozesswasser fertig eingelassen wurde, aktiviert die Steuerung 9 die Heizvorrichtung 7, um das Prozesswasser zu heizen. Gleichzeitig pumpt die Pumpe 5 das Prozesswasser im Prozesswasserkreislauf, sodass das Prozesswasser einerseits an der Heizvorrichtung 7 vorbeigeführt wird und andererseits das Prozesswasser auf das Geschirr mittels den Sprühmitteln 2, 3, 4 aufgesprüht wird. Zu diesem Zeitpunkt kann auch vom Reinigungsmitteltank 13 dem Prozesswasser Reinigungsmittel zugeführt werden.
  • Das Prozesswasser wird ca. während 8 bis 10 Minuten geheizt bis eine Prozesswassertemperatur von 50°C erreicht ist. Die Prozesswassertemperatur wird dabei monoton bzw. kontinuierlich erhöht.
  • Unmittelbar nach Erreichen der Maximaltemperatur aktiviert die Steuerung 9 die Ablaufpumpe 8, um das Prozesswasser aus dem Bottich abzulassen.
  • Nachdem das Prozesswasser vollständig abgelassen wurde, wird die Türe des Geschirrspülers aufgestossen und das Kurzreinigungsprogramm ist beendet. Alternativ könnte die Türe auch geschlossen bleiben und das Geschirr würde mittels einer Trocknungsvorrichtung getrocknet werden.
2 shows a short cleaning program to be understood as an example, according to which the controller 10 controls the components of the device. The upper diagram shows the process water temperature T and the lower diagram shows the process water volume M in the vat.
  • In a first phase of the short cleaning program, approximately during the first minute, the process water is fed to the tub via the fresh water supply 11 . The total amount of water is between 2.5 and 6 liters, for example.
  • Once the process water has finished being admitted, the controller 9 activates the heater 7 to heat the process water. At the same time, the pump 5 pumps the process water in the process water circuit so that the process water is guided past the heating device 7 on the one hand and the process water is sprayed onto the dishes by the spray means 2, 3, 4 on the other. At this point in time, cleaning agent can also be supplied to the process water from the cleaning agent tank 13 .
  • The process water is heated for approx. 8 to 10 minutes until a process water temperature of 50°C is reached. The process water temperature is increased monotonically or continuously.
  • Immediately after reaching the maximum temperature, the controller 9 activates the drain pump 8 to drain the process water from the tub.
  • After the process water has been completely drained, the dishwasher door is pushed open and the short cleaning program ends. Alternatively, the door could remain closed and that Dishes would be dried by means of a drying device.

In einer besonderen Ausführung des Geschirrspülers, bei welchem während des Kurzreinigungsprogramms nur der Bodenbereich 6, aber nicht das Geschirr, gereinigt wird, kann das Prozesswasser mit geringer Geschwindigkeit lediglich durch das untere Sprühmittel 2 geführt werden.In a special embodiment of the dishwasher, in which only the bottom area 6 but not the dishes is cleaned during the short cleaning program, the process water can only be guided through the lower spray means 2 at a low speed.

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 the present application describes preferred embodiments of the invention, it is to be understood that the invention is not limited thereto and may be otherwise embodied within the scope of the following claims.

Claims (15)

  1. Dishwasher, in particular a domestic dishwasher, comprising
    - a tub (1) for holding dishes,
    - a heating device (7) for heating process water,
    - a control device (9) having a short washing program with a heating phase for washing the dishes,
    the control device(9) being designed not to replace the process water during the entire short washing program and to heat the process water during the heating phase by means of the heating device (7),
    characterised in that the control device (9) is designed to heat the process water at least partially to at least 35°C during the heating phase.
  2. Dishwasher according to claim 1, wherein the control device (9) is designed to heat the process water at least partially to at least 45°C, in particular at least 50°C, during the heating phase.
  3. Dishwasher according to one of the preceding claims, wherein the short washing program has a single heating phase.
  4. Dishwasher according to one of the preceding claims, wherein the control device (9) is designed to increase a temperature of the process water monotonously, in particular strictly monotonously, during the heating phase.
  5. Dishwasher according to one of the preceding claims, wherein the control device (9) is designed to add washing agents to the process water in the short washing program.
  6. Dishwasher according to one of the preceding claims, wherein the short washing program has an operating duration of at most 20 minutes, in particular at most 15 minutes, in particular at most 10 minutes,
    and/or wherein the control device (9) is configured to operate the heating device (7) in the short washing program for at least 5 minutes, in particular at least 7 minutes, and/or for a maximum of 10 minutes, in particular a maximum of 8 minutes.
  7. Dishwasher according to one of the preceding claims, comprising a fresh water supply (11) and wherein the control device (9) is designed such that the fresh water supply (11) is opened in the short washing program during a single period of time, in particular at the beginning of the short washing program.
  8. Dishwasher according to one of the preceding claims,
    - comprising a door with a door push, wherein the control device (9) is designed to push the door open directly or indirectly after the end of the heating phase by means of the door push, and/or
    - wherein the control device (9) is designed to wash only one bottom area (6) in the short washing program.
  9. Dishwasher according to one of the preceding claims, wherein the control device (9) is designed to output a recommendation for starting the short washing program in dependence on
    - a number of registered door openings,
    - a measured duration of time since a dishwashing program, in particular the short-washing program, was last operated, and/or
    - an odour level detected by means of an odour sensor (12).
  10. Dishwasher according to one of the preceding claims, wherein the control device (9) has a main washing program with a main washing phase and a clear rinsing phase, wherein the control device (9) is designed to replace the process water between the main washing phase and the clear rinsing phase, and in particular to add clear rinsing agent to the process water during the clear rinsing phase.
  11. Dishwasher according to one of the preceding claims, wherein the control device is designed to dry in a final step in the short washing program by means of a drying device.
  12. Method for washing dishes in a dishwasher, comprising a tub (1) for receiving the dishes, a heating device (7) for heating process water and a control device (9) comprising a short washing program for washing the dishes, wherein the process water is not replaced during the entire short washing program and, by means of the heating device (9), the process water is heated during a heating phase, characterised in that the process water is at least partially heated to at least 35° during the heating phase of the short washing program.
  13. Method according to claim 12, wherein the process water is at least partially heated to at least 45°C, in particular at least 50°C, during the heating phase of the short washing program.
  14. Method according to claim 12 or 13, wherein the short washing program has a single heating phase and/or wherein a temperature of the process water is increased monotonously, in particular strictly monotonously, during the heating phase.
  15. Method according to any one of claims 12 to 14, wherein the short washing program lasts a maximum of 20 minutes, in particular a maximum of 15 minutes, in particular a maximum of 10 minutes,
    and/or wherein the heating device (7) is operated in the short washing program for at least 5 minutes, in particular at least 7 minutes, and/or for a maximum of 10 minutes, in particular a maximum of 8 minutes.
EP17000538.3A 2017-03-31 2017-03-31 Short washing program for a dish rack Active EP3381346B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201731233T SI3381346T1 (en) 2017-03-31 2017-03-31 Short washing program for a dish rack
EP17000538.3A EP3381346B1 (en) 2017-03-31 2017-03-31 Short washing program for a dish rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17000538.3A EP3381346B1 (en) 2017-03-31 2017-03-31 Short washing program for a dish rack

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EP3381346A1 EP3381346A1 (en) 2018-10-03
EP3381346B1 true EP3381346B1 (en) 2022-07-06

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006082552A1 (en) * 2005-02-04 2006-08-10 Arcelik Anonim Sirketi A dishwasher and the control method
US20090110594A1 (en) * 2005-08-19 2009-04-30 Dong Hoon Shin Dish washer with uv sterilization device therein
EP2762052B1 (en) * 2013-02-01 2018-12-26 Rheinische Friedrich-Wilhelms-Universität Bonn A method of operating a household appliance, and a household appliance, in particular a dishwasher

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EP3381346A1 (en) 2018-10-03

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