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EP2120671B1 - Method for implementing a drying program section in washing equipment with a condensation drying device - Google Patents

Method for implementing a drying program section in washing equipment with a condensation drying device Download PDF

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Publication number
EP2120671B1
EP2120671B1 EP08707562A EP08707562A EP2120671B1 EP 2120671 B1 EP2120671 B1 EP 2120671B1 EP 08707562 A EP08707562 A EP 08707562A EP 08707562 A EP08707562 A EP 08707562A EP 2120671 B1 EP2120671 B1 EP 2120671B1
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EP
European Patent Office
Prior art keywords
door
dishwasher
condensation
worktop
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08707562A
Other languages
German (de)
French (fr)
Other versions
EP2120671A1 (en
Inventor
Erik Berends
Martin Kornberger
Dirk Wegener
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Miele und Cie KG
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Miele und Cie KG
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Classifications

    • 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
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • 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
    • A47L15/0034—Drying phases, including dripping-off 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • 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
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
    • 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
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements
    • 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
    • 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
    • A47L2501/22—Loading doors, e.g. door latches, inflatable door seals
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/41—Function thereof for closing
    • E05Y2201/412—Function thereof for closing for the final closing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E05Y2201/426—Function thereof for opening for the initial opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers

Definitions

  • the invention relates to a method for carrying out a drying program section in a dishwasher, in particular a domestic dishwasher, with a washing container, which is closable on its front side by a door pivotally mounted in the lower area, with a device for automatic gap-wise opening of the door and with a Condensation-drying device, which contains means for generating a cooling air flow.
  • a dishwasher with a condensation-drying device is for example from the DE 198 18 812 A1 or from the EP 0 755 652 A2 known.
  • this device following the water-bearing program sections for drying the dishes, cooling air is sucked in through a fan in the lower area of the dishwasher and passed past the side surfaces of the washing compartment.
  • the moisture condenses from the warm moist process air inside the washing container, the condensate accumulates in the lower part of the container.
  • the FR-A 2 039 346 discloses a dishwasher in which an output is provided between the worktop and outlet openings for hot-humid process air through which emerges an air flow generated by natural convection.
  • a dishwasher is known in which the moist air from the washing container mixed with dry fresh air and blown out of the washing up above the door. From the fan, with which the fresh air is sucked in, an air duct is branched off, which opens into a second opening above the exhaust opening. This is to avoid that the moisture from the washing container at the edge a worktop condenses over the dishwasher housing. Since the intake fresh air is cool, the dew point at the edge of the worktop is low. For this reason, a very large amount of fresh air must be blown out of the second opening. This is at the expense of the drying capacity in the Spül matterserinneren.
  • the invention thus raises the problem of improving a method for carrying out a drying program section in a dishwasher in such a way that condensate formation on the underside of a worktop is reliably avoided.
  • the essential advantage of the method according to the invention is that the worktop edge is already exposed to dry, warm air before the gap-wise opening of the door and is thus preheated. This increases the dew point and condensation is reliably avoided.
  • An inventively constructed household dishwasher 1 has, as in FIG. 3 shown, in a known manner a washing container 2, which is closable on its front side by a door 3.
  • the door 3 is pivotally mounted in the lower area about a pivot point 4.
  • On the upper front edge of the washing container 2 is provided for stabilization with a U-shaped metal profile bracket 5, see also FIG. 2 .
  • a U-shaped metal profile bracket 5 see also FIG. 2 .
  • the Applicant dishwashers forms the outer, in the Figures 2 and 3 left leg 6 of the bracket 5, the front boundary line of the machine housing 8. It is provided with a seal 9, against which the upper edge of the door 3.
  • a noise dam 10 is placed for noise and heat insulation.
  • a worktop 11 is arranged as a rule, which is not part of the machine, but belongs to the furniture of a kitchenette, in which the dishwasher 1 is integrated as a single or base unit.
  • the dishwasher 1 also has a condensation-drying device for dehumidifying the warm, moist air, which is present in the Spül organizations-inside after the implementation of the last water-bearing program section.
  • a fan 13 is provided in the lower side region of the dishwasher housing 8, which sucks through an opening 14 in the machine housing 8 below the door 3 cooling air (symbolized by the arrows 15) and this passes on a side wall of the washing.
  • the cooling air flow 15 is in the known dishwasher 1 as in FIG. 3 shown completely blown out in the rear area.
  • the dishwasher 1 is in addition, as from the DE 10 2005 028 448 A1 known, equipped with a device for automatic gap-wise opening of the door at the end of the drying program section.
  • the FIG. 4 shows the upper portion of the open at a gap dishwasher 1, in which the lid, the control panel and the door outer panel were removed for better representation of the closing mechanism.
  • a fork-shaped locking element 16 is arranged on the door 3, which is rotatably mounted in a known manner and engages in its locking position in a arranged on the rinsing container locking bolt 17.
  • a handle 18 is pushed up, while the locking member 16 is rotated via a mechanism not shown in a position in which it is no longer held by the locking pin 17.
  • the locking bolt 17 is fastened to a closing plate 19, which is linearly movable approximately ten centimeters in the opening direction of the door 3.
  • the motor 20 is switched on by the controller 30 of the dishwasher 1 depending on the program.
  • FIG. 1 shows a dishwasher, wherein according to the invention between the upper front edge of the washing and the upper boundary surface of the dishwasher housing a partial air flow 21 along the underside of the worktop overhang 12 is performed.
  • the rear leg 7 of the bracket 5 is perforated and the front leg 6 shortened, so that a gap 25 between this leg 6 and the work surface 11 is formed.
  • the fan 13 runs first with the door closed 3. This occurs in the rear area (see FIG. 3 Since the gap between the washing container 2 and the machine housing 8 is under slight overpressure, occurs even with the door closed 3, a partial air flow 21 at the front. This results in that the underside of the worktop projection 12 is already preheated when opening the door 3 and that this immediately prevents any condensation.
  • the door 3 is automatically opened at a further running fan 13 by a gap 24.
  • the partial air flow 21 at the front deflects the steam leaving the washing compartment (not shown) and keeps it away from the worktop 11.
  • this partial air flow is warmed by passing the warm wash tub outer wall and raises the temperature of the worktop overhang 12. In other words, in the mixing zone below the worktop 11, the dew point temperature is below the worktop temperature and condensation will no longer take place.
  • the blower 13 should run until no more humid steam emerges from the washing container 2. This time can be determined experimentally.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

The invention relates to a method for implementing a drying program section in washing equipment, in particular in a domestic dishwasher (1), with a washing container (2), which can be closed on its front side by a door (3) mounted pivotably in the lower region, with an apparatus (19, 20) for automatically opening the door (3) to form a gap and with a condensation drying device, which contains means (13) for generating a cooling air flow (15). In order to improve the method such that the formation of condensation on the lower side of a worktop is reliably avoided, some (21) of the cooling air flow (15) is guided along part (12) of the lower side of a worktop (11), which covers the washing equipment casing (8) at the top, before and after the door (3) is opened to form a gap.

Description

Die Erfindung betrifft ein Verfahren zur Durchführung eines Trocknungs-Programmabschnitts in einer Spülmaschine, insbesondere einer Haushaltsgeschirrspülmaschine, mit einem Spülbehälter, der auf seiner Frontseite durch eine im unteren Bereich schwenkbar gelagerte Tür verschließbar ist, mit einer Vorrichtung zur automatischen spaltweisen Öffnung der Tür und mit einer Kondensations-Trocknungseinrichtung, welche Mittel zur Erzeugung eines Kühlluftstroms enthält.The invention relates to a method for carrying out a drying program section in a dishwasher, in particular a domestic dishwasher, with a washing container, which is closable on its front side by a door pivotally mounted in the lower area, with a device for automatic gap-wise opening of the door and with a Condensation-drying device, which contains means for generating a cooling air flow.

Eine Spülmaschine mit einer Kondensations-Trocknungseinrichtung ist beispielsweise aus der DE 198 18 812 A1 oder aus der EP 0 755 652 A2 bekannt. Bei diesem Gerät wird im Anschluss an die wasserführenden Programmabschnitte zur Trocknung des Geschirrs Kühlluft durch ein Gebläse im unteren Bereich der Geschirrspülmaschine angesaugt und an den Seitenflächen des Spülbehälters vorbeigeführt. Hierdurch kondensiert die Feuchtigkeit aus der warmfeuchten Prozessluft im Inneren des Spülbehälters, die Kondensflüssigkeit sammelt sich im unteren Bereich des Behälters.A dishwasher with a condensation-drying device is for example from the DE 198 18 812 A1 or from the EP 0 755 652 A2 known. In this device, following the water-bearing program sections for drying the dishes, cooling air is sucked in through a fan in the lower area of the dishwasher and passed past the side surfaces of the washing compartment. As a result, the moisture condenses from the warm moist process air inside the washing container, the condensate accumulates in the lower part of the container.

Es sind auch Geschirrspülmaschinen bekannt, beispielsweise aus der DE 44 04 113 C2 , bei denen die feuchte Prozessluft im Inneren des Spülbehälters mit Kaltluft von außen gemischt wird und dann durch eine Öffnung in der Tür nach außen geblasen wird.There are also known dishwashers, for example from the DE 44 04 113 C2 in which the moist process air inside the washing container is mixed with cold air from the outside and then blown through an opening in the door to the outside.

Trotz der vorgenannten Trocknungseinrichtungen öffnen einige Benutzer nach Beendigung der wasserführenden Programmabschnitte, in der Regel nach dem Klarspülen, die Tür, um eine Trocknung durch Konvektion zu erreichen. Es ist auch bekannt ( DE 44 43 849 A1 ), den Schließkloben einer Spülmaschine mit einer Schließplatte zu versehen, die exzentrisch an einem Motor gelagert ist und hierdurch die Spülbehältertür nach Programmende automatisch einen Spalt öffnen kann. Obwohl das selbsttätige oder automatische Öffnen der Tür für den Trocknungsvorgang eine Verbesserung darstellt, ergeben sich dennoch Probleme, wenn die Geschirrspülmaschine in einer Küchenzeile eingebaut ist und im oberen Bereich durch eine Arbeitsplatte abgedeckt wird. Dann kondensiert die heiße, feuchtigkeitsbeladene Luft an der Unterseite der kalten Arbeitsplatte, was zu deren Zerstörung führen kann.Despite the aforementioned drying facilities, some users open the door after completion of the water-bearing program sections, usually after rinsing, to achieve drying by convection. It is also known ( DE 44 43 849 A1 ), to provide the locking block of a dishwasher with a closing plate which is eccentrically mounted on a motor and thus the Spülbehältertür after opening the program can automatically open a gap. Although the automatic or automatic opening of the door for the drying process is an improvement, problems arise when the dishwasher is installed in a kitchenette and is covered at the top by a worktop. Then the hot, moisture-laden air condenses on the underside of the cold worktop, which can lead to their destruction.

Die FR-A 2 039 346 offenbart eine Geschirrspülmaschine, bei der ein Ausgang zwischen der Arbeitsplatte und Austrittsöffnungen für warmfeuchte Prozessluft vorgesehen ist, durch den eine durch natürliche Konvektion erzeugte Luftströmung austritt.The FR-A 2 039 346 discloses a dishwasher in which an output is provided between the worktop and outlet openings for hot-humid process air through which emerges an air flow generated by natural convection.

Aus der JP 08 052 103 A ist eine Spülmaschine bekannt, bei der die feuchte Luft aus dem Spülbehälter mit trockener Frischluft gemischt und oberhalb der Gerätetür aus dem Spülbehälter ausgeblasen wird. Von dem Gebläse, mit dem die Frischluft angesaugt wird, ist ein Luftkanal abgezweigt, der in eine zweite Öffnung oberhalb der Ausblasöffnung mündet. Hierdurch soll vermieden werden, dass die Feuchtigkeit aus dem Spülbehälter an der Kante einer Arbeitsplatte über dem Spülmaschinengehäuse kondensiert. Da die angesaugte Frischluft kühl ist, ist der Taupunkt an der Arbeitsplattenkante niedrig. Aus diesem Grund muss eine sehr große Frischluftmenge aus der zweiten Öffnung ausgeblasen werden. Dies geht zu Lasten der Trocknungsleistung im Spülbehälterinneren.From the JP 08 052 103 A a dishwasher is known in which the moist air from the washing container mixed with dry fresh air and blown out of the washing up above the door. From the fan, with which the fresh air is sucked in, an air duct is branched off, which opens into a second opening above the exhaust opening. This is to avoid that the moisture from the washing container at the edge a worktop condenses over the dishwasher housing. Since the intake fresh air is cool, the dew point at the edge of the worktop is low. For this reason, a very large amount of fresh air must be blown out of the second opening. This is at the expense of the drying capacity in the Spülbehälterinneren.

Der Erfindung stellt sich somit das Problem, ein Verfahren zur Durchführung eines Trocknungs-Programmabschnitts in einer Spülmaschine dahingehend zu verbessern, dass eine Kondensatbildung an der Unterseite einer Arbeitsplatte sicher vermieden wird.The invention thus raises the problem of improving a method for carrying out a drying program section in a dishwasher in such a way that condensate formation on the underside of a worktop is reliably avoided.

Erfindungsgemäß wird dieses Problem durch Verfahren mit den Merkmalen des Patentanspruchs gelöst.According to the invention, this problem is solved by methods having the features of the patent claim.

Der wesentliche Vorteil des erfindungsgemäßen Verfahrens besteht darin, dass die Arbeitsplattenkante bereits vor dem spaltweisen Öffnen der Tür mit trockener, warmer Luft beaufschlagt und so vorgewärmt wird. Dadurch erhöht sich der Taupunkt und es wird eine Kondensation sicher vermieden.The essential advantage of the method according to the invention is that the worktop edge is already exposed to dry, warm air before the gap-wise opening of the door and is thus preheated. This increases the dew point and condensation is reliably avoided.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt

Figur 1
einen Ausschnitt aus einer Geschirrspülmaschine mit einer erfindungsgemäßen Luftführung;
Figur 2
einen Ausschnitt aus einer Geschirrspülmaschine mit einer Luftführung gemäß dem Stand der Technik;
Figur 3
eine Geschirrspülmaschine mit einer Luftführung nach dem Stand der Technik;
Figur 4
den Schließmechanismus einer Geschirrspülmaschine.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows
FIG. 1
a detail of a dishwasher with an air duct according to the invention;
FIG. 2
a detail of a dishwasher with an air duct according to the prior art;
FIG. 3
a dishwasher with an air duct according to the prior art;
FIG. 4
the closing mechanism of a dishwasher.

Eine erfindungsgemäß aufgebaute Haushalts-Geschirrspülmaschine 1 besitzt, wie in Figur 3 dargestellt, in bekannter Weise einen Spülbehälter 2, welcher auf seiner Frontseite durch eine Tür 3 verschließbar ist. Die Tür 3 ist im unteren Bereich um einen Drehpunkt 4 schwenkbar gelagert. Auf der oberen Frontkante ist der Spülbehälter 2 zur Stabilisierung mit einem u-förmigen Metallprofil-Bügel 5 versehen, siehe auch Figur 2. Bei bekannten, von der Anmelderin hergestellten und vertriebenen Geschirrspülmaschinen bildet der äußere, in den Figuren 2 und 3 linke Schenkel 6 des Bügels 5 die vordere Begrenzungslinie des Maschinengehäuses 8. Er ist mit einer Dichtung 9 versehen, an welcher die Oberkante der Tür 3 anliegt. Auf den Spülbehälter ist zur Geräusch- und Wärmeisolierung eine Dämmmatte 10 aufgelegt. Oberhalb der Geschirrspülmaschine 1 ist in der Regel eine Arbeitsplatte 11 angeordnet, die nicht Bestandteil der Maschine ist, sondern zum Mobiliar einer Küchenzeile gehört, in die die Geschirrspülmaschine 1 als Ein- oder Unterbaugerät integriert ist. Der vordere Rand der Arbeitsplatte 11, im Folgenden als Überstand 12 bezeichnet, überragt die Tür 3, er kann wie gezeigt in der Ebene liegen, welche durch die Türfront gebildet wird oder sogar noch weiter überstehen.An inventively constructed household dishwasher 1 has, as in FIG. 3 shown, in a known manner a washing container 2, which is closable on its front side by a door 3. The door 3 is pivotally mounted in the lower area about a pivot point 4. On the upper front edge of the washing container 2 is provided for stabilization with a U-shaped metal profile bracket 5, see also FIG. 2 , In known, manufactured and marketed by the Applicant dishwashers forms the outer, in the Figures 2 and 3 left leg 6 of the bracket 5, the front boundary line of the machine housing 8. It is provided with a seal 9, against which the upper edge of the door 3. On the washing a noise dam 10 is placed for noise and heat insulation. Above the dishwasher 1, a worktop 11 is arranged as a rule, which is not part of the machine, but belongs to the furniture of a kitchenette, in which the dishwasher 1 is integrated as a single or base unit. The front edge of the worktop 11, hereinafter referred to as overhang 12, surmounted the door 3, he can as shown lying in the plane, which is formed by the door front or survive even further.

Die Geschirrspülmaschine 1 besitzt außerdem eine Kondensations-Trocknungseinrichtung zur Entfeuchtung der warmen, feuchten Luft, welche im Spülbehälter-Inneren nach der Durchführung des letzten wasserführenden Programmabschnitts vorhanden ist. Hierzu ist im unteren Seitenbereich des Spülmaschinen-Gehäuses 8 ein Gebläse 13 vorgesehen, welches durch eine Öffnung 14 im Maschinengehäuse 8 unterhalb der Tür 3 Kühlluft (symbolisiert durch die Pfeile 15) einsaugt und diese an einer Seitenwand des Spülbehälters vorbeiführt. Der Kühlluftstrom 15 wird bei der bekannten Geschirrspülmaschine 1 wie in Figur 3 dargestellt vollständig im hinteren Bereich ausgeblasen.The dishwasher 1 also has a condensation-drying device for dehumidifying the warm, moist air, which is present in the Spülbehälter-inside after the implementation of the last water-bearing program section. For this purpose, a fan 13 is provided in the lower side region of the dishwasher housing 8, which sucks through an opening 14 in the machine housing 8 below the door 3 cooling air (symbolized by the arrows 15) and this passes on a side wall of the washing. The cooling air flow 15 is in the known dishwasher 1 as in FIG. 3 shown completely blown out in the rear area.

Zur Verbesserung der Trocknung ist die Geschirrspülmaschine 1 zusätzlich, wie aus der DE 10 2005 028 448 A1 bekannt, mit einer Vorrichtung zum automatischen spaltweisen Öffnen der Tür am Ende des Trocknungs-Programmabschnitts ausgestattet. Die Figur 4 zeigt den oberen Bereich der um einen Spalt geöffneten Geschirrspülmaschine 1, bei der zur besseren Darstellung des Schließmechanismus der Deckel, die Bedienblende und das Türaußenblech entfernt wurden. Zum Verschließen des Spülbehälters 2 ist an der Tür 3 ein gabelförmiges Verriegelungselement 16 angeordnet, welches in bekannter Weise drehbar gelagert ist und in seiner Verriegelungsstellung in einen auf dem Spülbehälter angeordneten Schließkloben 17 eingreift. Zum Öffnen der Tür wird ein Griff 18 nach oben gedrückt und dabei das Verriegelungselement 16 über einen nicht dargestellten Mechanismus in eine Stellung gedreht, in der es nicht mehr vom Schließkloben 17 gehalten wird. Um nun die Tür 3 ohne Betätigung des Griffs 18 programmgesteuert öffnen zu können, ist der Schließkloben 17 an einer Schließplatte 19 befestigt, welche ca. zehn Zentimeter linear in Öffnungsrichtung der Tür 3 motorisch verfahrbar ist. Der Motor 20 wird über die Steuerung 30 der Geschirrspülmaschine 1 programmabhängig eingeschaltet.To improve the drying, the dishwasher 1 is in addition, as from the DE 10 2005 028 448 A1 known, equipped with a device for automatic gap-wise opening of the door at the end of the drying program section. The FIG. 4 shows the upper portion of the open at a gap dishwasher 1, in which the lid, the control panel and the door outer panel were removed for better representation of the closing mechanism. For closing the rinsing container 2, a fork-shaped locking element 16 is arranged on the door 3, which is rotatably mounted in a known manner and engages in its locking position in a arranged on the rinsing container locking bolt 17. To open the door, a handle 18 is pushed up, while the locking member 16 is rotated via a mechanism not shown in a position in which it is no longer held by the locking pin 17. In order to be able to open the door 3 programmatically without actuating the handle 18, the locking bolt 17 is fastened to a closing plate 19, which is linearly movable approximately ten centimeters in the opening direction of the door 3. The motor 20 is switched on by the controller 30 of the dishwasher 1 depending on the program.

Die Figur 1 zeigt eine Geschirrspülmaschine, bei der erfindungsgemäß zwischen der oberen Vorderkante des Spülbehälters und der oberen Begrenzungsfläche des Spülmaschinengehäuses ein Teilluftstrom 21 entlang der Unterseite des Arbeitsplatten-Überstandes 12 geführt wird. Hierzu ist der hintere Schenkel 7 des Bügels 5 perforiert und der vordere Schenkel 6 verkürzt, so dass sich ein Spalt 25 zwischen diesem Schenkel 6 und der Arbeitsplatte 11 bildet. Das Gebläse 13 läuft zunächst bei geschlossener Tür 3. Dadurch tritt im hinteren Bereich (siehe Figur 3) Kühlluft 15 aus dem Gehäuse 8. Da der Zwischenraum zwischen Spülbehälter 2 und Maschinengehäuse 8 unter leichtem Überdruck steht, tritt auch schon bei geschlossener Tür 3 ein Teilluftstrom 21 an der Vorderseite aus. Dies führt dazu, dass die Unterseite des Arbeitsplatten-Überstandes 12 beim Öffnen der Tür 3 schon vorgewärmt ist und dass dadurch sofort jegliche Kondensation verhindert wird. Nach einer vorgegebenen Zeit wird die Tür 3 bei weiter laufendem Gebläse 13 automatisch um einen Spalt 24 geöffnet. Der Teilluftstrom 21 an der Vorderseite lenkt den aus dem Spülbehälter austretenden Dampf (nicht dargestellt) ab und hält ihn von der Arbeitsplatte 11 fern. Außerdem ist dieser Teilluftstrom durch das Vorbeistreichen an der warmen Spülbehälteraußenwand erwärmt und erhöht die Temperatur des Arbeitsplatten-Überstandes 12. Anders ausgedrückt: In der Durchmischungszone unterhalb der Arbeitsplatte 11 liegt die Taupunkttemperatur unterhalb der Arbeitsplattentemperatur und es findet keine Kondensation mehr statt. Das Gebläse 13 sollte so lange laufen, bis kein feuchter Dampf mehr aus dem Spülbehälter 2 austritt. Diese Zeit kann experimentell ermittelt werden.The FIG. 1 shows a dishwasher, wherein according to the invention between the upper front edge of the washing and the upper boundary surface of the dishwasher housing a partial air flow 21 along the underside of the worktop overhang 12 is performed. For this purpose, the rear leg 7 of the bracket 5 is perforated and the front leg 6 shortened, so that a gap 25 between this leg 6 and the work surface 11 is formed. The fan 13 runs first with the door closed 3. This occurs in the rear area (see FIG. 3 Since the gap between the washing container 2 and the machine housing 8 is under slight overpressure, occurs even with the door closed 3, a partial air flow 21 at the front. This results in that the underside of the worktop projection 12 is already preheated when opening the door 3 and that this immediately prevents any condensation. After a given time, the door 3 is automatically opened at a further running fan 13 by a gap 24. The partial air flow 21 at the front deflects the steam leaving the washing compartment (not shown) and keeps it away from the worktop 11. In addition, this partial air flow is warmed by passing the warm wash tub outer wall and raises the temperature of the worktop overhang 12. In other words, in the mixing zone below the worktop 11, the dew point temperature is below the worktop temperature and condensation will no longer take place. The blower 13 should run until no more humid steam emerges from the washing container 2. This time can be determined experimentally.

Claims (1)

  1. A Method for carrying out a drying step in a dishwasher, in particular a domestic dishwasher (1), including a washing tub (2) which can be closed at its front by a door (3) hinged in the lower region, and further including a device (19, 20) for automatically opening the door (3) to an ajar position, and a condensation drying system having a fan (13) for generating a cooling-air flow (15),
    wherein, before and after the door (3) is opened to an ajar position, a portion (21) of the cooling-air flow (15) generated by the fan is guided along a portion (12) of the underside of a countertop (11) which covers the dishwasher housing (8) at the top.
EP08707562A 2007-02-21 2008-02-06 Method for implementing a drying program section in washing equipment with a condensation drying device Active EP2120671B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007008950A DE102007008950B4 (en) 2007-02-21 2007-02-21 Method for carrying out a drying program section in a dishwasher with a condensation-drying device
PCT/EP2008/000894 WO2008101597A1 (en) 2007-02-21 2008-02-06 Method for implementing a drying program section in washing equipment with a condensation drying device

Publications (2)

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EP2120671A1 EP2120671A1 (en) 2009-11-25
EP2120671B1 true EP2120671B1 (en) 2012-08-22

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EP08707562A Active EP2120671B1 (en) 2007-02-21 2008-02-06 Method for implementing a drying program section in washing equipment with a condensation drying device

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US (1) US8671587B2 (en)
EP (1) EP2120671B1 (en)
DE (1) DE102007008950B4 (en)
WO (1) WO2008101597A1 (en)

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Also Published As

Publication number Publication date
DE102007008950A1 (en) 2008-08-28
US20100043250A1 (en) 2010-02-25
WO2008101597A1 (en) 2008-08-28
US8671587B2 (en) 2014-03-18
DE102007008950B4 (en) 2011-01-05
EP2120671A1 (en) 2009-11-25

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