EP1345525B1 - Method for operating a dish washing machine, and a corresponding dish washing machine - Google Patents
Method for operating a dish washing machine, and a corresponding dish washing machine Download PDFInfo
- Publication number
- EP1345525B1 EP1345525B1 EP01271171A EP01271171A EP1345525B1 EP 1345525 B1 EP1345525 B1 EP 1345525B1 EP 01271171 A EP01271171 A EP 01271171A EP 01271171 A EP01271171 A EP 01271171A EP 1345525 B1 EP1345525 B1 EP 1345525B1
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- EP
- European Patent Office
- Prior art keywords
- pump
- rinsing
- rinsing chamber
- rinsing liquid
- spray
- 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.)
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Classifications
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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
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
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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
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4219—Water recirculation
- A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
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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
- 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
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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
- 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
- A47L2501/04—Water pressure or flow rate
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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
- 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
- A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
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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
- 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
Definitions
- the invention relates to a method for operating a dishwasher according to the preamble of claim 1 and a dishwasher according to the preamble of claim 6.
- a dishwashing machine in which in the housing of the dishwasher two superimposed and pulled out of the housing, the same size receptacle are provided with trough-like washrooms.
- the liquid supply to spray is interrupted as quickly as possible for the above reason.
- a dishwasher with rotating spray arms known, which allows to set in at least a portion of a spray level a lower spray pressure than in other areas.
- a diaphragm control is provided, which causes a reduction of the inlet cross-section in selected areas, so that irrigation fluid is supplied unhindered or in a throttled amount as a function of the angular position of the spray arm.
- a dishwashing machine which has a pressure sensor which is arranged in a line, is circulated in the washing liquid. If the measured pressure exceeds a predetermined limit, it is assumed that the spray nozzles are clogged and the circulation pump is stopped and an error signal is displayed or an acoustic signal is generated.
- dishwashers are known in which the ware to be cleaned through a tunnel-like wash compartment by means of a conveyor, so-called continuous dishwashers. Even when opening an access to this washing the liquid supply to sprayers for the above reason is interrupted as quickly as possible.
- the invention has for its object to make the user of a dishwasher of any kind clogging of the spray openings easily recognizable.
- the solution of the object is achieved in a method for operating a dishwasher according to the invention according to claim 1.
- the user of a dishwasher can thus observe the spraying device accessible dish and recognize whether at all spray holes flushing liquid exits, or determine whether at different spray openings different amount of flushing liquid emerges. This is a sign that there is at least a partial blockage of the respective spray openings.
- this test program with the door open, in dishwashers with pull-out receptacles with the receptacle pulled out, in continuous dishwashers with accessible dishwashing eg by partially open, lifted or tipped tunnel-shaped cover of the sink.
- the user can then specifically purify the respective spray openings, so that again a perfect flow of the rinsing liquid is ensured by the spray openings. It is with the invention managed to make the user of a dishwasher of any kind clogging of the spray openings easily recognizable.
- a simple way of reducing the flow rate according to the invention is that, depending on the open position of the washing compartment, the pump speed is lowered, so that its delivery rate is reduced to such an extent that no spraying of washing liquid into the free environment occurs.
- the electrical control circuit of the pump so as to reduce their flow rate. It can be switched back first to a certain minimum capacity. It is then possible by means of a control circuit arranged in the pump, manually adjustable control member, for example a potentiometer, to regulate a suitable for the review of the pump delivery capacity.
- a reduction of the flow rate can also be achieved according to the invention in that, depending on the open position of the washing compartment, at least one throttle element reducing the flow rate is activated in the feed line from the pump to the spray unit.
- the pump can be operated at normal power and the throttle body provides for the reduction of the flow rate. It may again be advantageous that the flow rate of the throttle body is adjustable.
- a pressure reducing valve can be used as a throttle body. It is also possible to provide a throttle element as an orifice element whose aperture is adjusted by means of a driven depending on the open position of the Spülraums drive member in the direction of reduced transmissibility or to use a controlled in two-stroke valve, the two-stroke control function of the open position of the washing compartment in Gear is set.
- a dishwashing machine which can be operated according to the above-described method in that a control unit is provided by which the pump can be switched on and the flushing liquid can be opened directly or indirectly when the washing compartment is accessible Open position of the Spülraums detecting sensor is present, through which a throttling of the flow rate of rinsing liquid is triggered by the spray openings with accessible Spülraum.
- a test program can be activated by the pump is switched on and the supply of rinsing liquid is released even with accessible Spülraum.
- the flow rate at the spray openings is reduced by the sensor detecting the open position of the flushing chamber. This is a check of the permeability of the spray holes possible without the risk of leakage of rinsing fluid from the washing.
- the sensor can be turned on in response to the actuation of the control program activating the test program.
- the electrical control circuit of the pump is influenced by a control signal of the sensor in the sense of a reduction in the delivery rate of the pump.
- the pump in their speed and thus in their capacity will be shut down so far that no spraying of flushing fluid out of the washing out to the outside.
- Another possibility for reducing the flow rate is that in the supply line from the pump to the spray device is arranged in its flow rate adjustable by a control signal of the sensor throttle member.
- a throttling device can advantageously be provided a pressure reducing valve or an orifice element whose aperture is adjustable by a control signal of the sensor in the sense of reducing the flow rate. If such throttling devices are used, then the pump can also be operated at its normal capacity while carrying out a check on the permeability of the spray orifices.
- a dishwasher which in the embodiment shown, a pull-out receptacle 2 with a trough-shaped washing compartment.
- a spraying device 4 is mounted, which has spray arms 6 provided with spray openings 5.
- the spray arms 6 are rotatably arranged in the embodiment shown.
- the spray arms 6 is supplied via a connected to the pump outlet 9 supply pipe 10 rinsing liquid.
- the rinsing liquid then exits via the spray openings 5 and is sprayed onto the dishes to be cleaned placed in the rinsing chamber 3.
- an adjustable throttle body 12 is arranged in the illustrated embodiment.
- the throttle member 12 is controlled by one of the open position of the Spülraums 2 detecting sensor 13 outgoing control signal in such a way that is supplied by this only in the open position of the washing compartment 2 from the sensor 13 control signal, the throttle body 12 to minimum flow.
- the promotion of rinsing liquid can be initiated. If the receptacle 2 is pulled out at the same time, that is, the flushing space 3 is accessible, the flow rate of flushing liquid through the spraying openings 5 is reduced by the sensor 13 so far that no strong jet occurs at the spraying openings 5, which could escape from the flushing space 3.
- the user of the dishwasher can therefore watch the individual spray holes 5 and check their perfect permeability with accessible washing compartment 3, without the risk of being splashed wet. If a lack of permeability is detected then the respective spray openings 5 can be cleaned in a targeted manner.
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betrieb einer Geschirrspülmaschine gemäß dem Oberbegriff des Anspruches 1 und eine Geschirrspülmaschine gemäß dem Oberbegriff des Anspruches 6.The invention relates to a method for operating a dishwasher according to the preamble of
Es sind Geschirrspülmaschinen bekannt, bei denen ein Spülbehälter durch eine Tür dicht verschlossen werden kann. Beim Öffnen dieser Tür während des Betriebes wird die Flüssigkeitszufuhr zu Sprüheinrichtungen möglichst schnell unterbrochen, damit der Benutzer und die Umgebung nicht mit Spülflüssigkeit bespritzt wird.There are known dishwashers in which a rinse tank can be sealed by a door. When opening this door during operation, the liquid supply to sprayers is interrupted as quickly as possible, so that the user and the environment is not splashed with rinsing liquid.
Weiterhin ist durch die
Aus der
Aus der
Ferner sind Geschirrspülmaschinen bekannt, bei denen das zu reinigende Spülgut einen tunnelartigen Spülraum mittels eines Fördermittels durchlaufen, sogenannte Durchlaufgeschirrspülmaschinen. Auch beim Öffnen eines Zugangs zu diesem Spülraum wird die Flüssigkeitszufuhr zu Sprüheinrichtungen aus dem oben genannten Grund möglichst schnell unterbrochen.Furthermore, dishwashers are known in which the ware to be cleaned through a tunnel-like wash compartment by means of a conveyor, so-called continuous dishwashers. Even when opening an access to this washing the liquid supply to sprayers for the above reason is interrupted as quickly as possible.
Bei sämtlichen Arten von Geschirrspülmaschinen kommt es immer wieder vor, dass die Sprühöffnungen der Sprüheinrichtung sich im Laufe der Zeit durch Ablagerungen, insbesondere Kalkablagerungen, teilweise oder ganz zusetzen, so dass nicht, mehr genügend oder gar keine Spülflüssigkeit mehr durch die Sprühöffnungen hindurchtreten kann. Dies führt zu schlechten Reinigungsergebnissen. Derartige Verstopfungen der Sprühöffnungen sind für den Benutzer der Geschirrspülmaschine kaum oder gar nicht erkennbar, so dass auch keine Abhilfe vorgenommen werden kann.In all types of dishwashers, it happens again and again that the spray openings of the sprayer over time by deposits, especially calcium deposits, partially or completely clogging, so that no more, enough or no rinsing liquid can pass through the spray holes. This leads to poor cleaning results. Such blockages of the spray openings are hardly or not recognizable to the user of the dishwasher, so that no remedy can be made.
Der Erfindung liegt die Aufgabe zugrunde, für den Benutzer einer Geschirrspülmaschine jeglicher Art Verstopfungen der Sprühöffnungen leicht erkennbar zu machen.The invention has for its object to make the user of a dishwasher of any kind clogging of the spray openings easily recognizable.
Die Lösung der gestellten Aufgabe gelingt bei einem Verfahren zum Betrieb einer Geschirrspülmaschine nach der Erfindung gemäß Anspruch 1. Der Benutzer einer Geschirrspülmaschine kann somit bei zugänglichem Spülraum die Sprüheinrichtung beobachten und erkennen, ob an allen Sprühöffnungen Spülflüssigkeit austritt, bzw. feststellen ob an verschiedenen Sprühöffnungen eine unterschiedliche Menge an Spülflüssigkeit austritt. Dies ist ein Zeichen dafür, dass zumindest eine teilweise Verstopfung der jeweiligen Sprühöffnungen vorliegt. Bei Geschirrspülmaschinen mit Tür kann dieses Prüfprogramm bei geöffneter Tür, bei Geschirrspülmaschinen mit herausziehbaren Aufnahmebehältern bei herausgezogenem Aufnahmebehälter, bei Durchlaufgeschirrspülmaschinen bei zugänglichen Spülraum z.B. durch teilweise geöffnete, abgehobene oder abgekippte tunnelförmige Abdeckung des Spülraums. Der Benutzer kann dann gezielt die betreffenden Sprühöffnungen reinigen, so dass wieder ein einwandfreier Durchfluss der Spülflüssigkeit durch die Sprühöffnungen gewährleistet ist. Mit der Erfindung ist es gelungen, für den Benutzer einer Geschirrspülmaschine jeglicher Art Verstopfungen der Sprühöffnungen leicht erkennbar zu machen.The solution of the object is achieved in a method for operating a dishwasher according to the invention according to
Eine einfache Möglichkeit zum Reduzieren der Durchflussmenge gemäß der Erfindung besteht darin, dass in Abhängigkeit von der Offenstellung des Spülraums eine Absenkung der Pumpendrehzahl erfolgt, so dass deren Förderleistung soweit reduziert wird, dass kein Abspritzen von Spülflüssigkeit in die freie Umgebung eintritt. In Abhängigkeit von der Offenstellung des Spülraums kann auf den elektrischen Steuerkreis der Pumpe eingewirkt werden, um so deren Förderleistung zu vermindern. Dabei kann zunächst auf eine bestimmte Mindestförderleistung zurückgeschaltet werden. Es besteht dann die Möglichkeit mittels eines im Steuerkreis der Pumpe angeordneten, von Hand verstellbaren Steuergliedes, beispielweise eines Potentiometers, eine für die Überprüfung geeignete Förderleistung der Pumpe einzuregulieren.A simple way of reducing the flow rate according to the invention is that, depending on the open position of the washing compartment, the pump speed is lowered, so that its delivery rate is reduced to such an extent that no spraying of washing liquid into the free environment occurs. Depending on the open position of the washing compartment can be acted upon the electrical control circuit of the pump so as to reduce their flow rate. It can be switched back first to a certain minimum capacity. It is then possible by means of a control circuit arranged in the pump, manually adjustable control member, for example a potentiometer, to regulate a suitable for the review of the pump delivery capacity.
Eine Reduzierung der Durchflussmenge kann auch gemäß der Erfindung dadurch erreicht werden, dass in Abhängigkeit von der Offenstellung des Spülraums mindestens ein in der Zuleitung von der Pumpe zu der Sprüheinheit angeordnetes, die Durchflussmenge reduzierendes Drosselorgan aktiviert wird. In diesem Falle kann die Pumpe mit normaler Leistung betrieben werden und das Drosselorgan sorgt für die Minderung der Durchflussmenge. Dabei kann es wiederum von Vorteil sein, dass die Durchflussmenge des Drosselorganes regulierbar ist.A reduction of the flow rate can also be achieved according to the invention in that, depending on the open position of the washing compartment, at least one throttle element reducing the flow rate is activated in the feed line from the pump to the spray unit. In this case, the pump can be operated at normal power and the throttle body provides for the reduction of the flow rate. It may again be advantageous that the flow rate of the throttle body is adjustable.
Als Drosselorgan kann ein Druckminderungsventil zum Einsatz kommen. Es besteht auch die Möglichkeit als Drosselorgan ein Blendenelement vorzusehen, dessen Blendenöffnung mittels eines in Abhängigkeit von der Offenstellung des Spülraums angesteuerten Antriebsgliedes in Richtung verminderter Durchlassfähigkeit verstellt wird oder ein im Zweitaktverfahren gesteuertes Ventil zu verwenden, wobei die Zweitaktsteuerung in Abhängigkeit von der Offenstellung des Spülraums in Gang gesetzt wird.As a throttle body, a pressure reducing valve can be used. It is also possible to provide a throttle element as an orifice element whose aperture is adjusted by means of a driven depending on the open position of the Spülraums drive member in the direction of reduced transmissibility or to use a controlled in two-stroke valve, the two-stroke control function of the open position of the washing compartment in Gear is set.
Die eingangs genannte Aufgabe wird bei einer nach dem vorbeschriebenen Verfahren betreibbaren Geschirrspülmaschine dadurch gelöst, dass ein Steuerelement vorgesehen ist, durch das bei zugänglichem Spülraum direkt oder indirekt sowohl die Pumpe einschaltbar als auch die Zufuhr von Spülflüssigkeit freigebbar ist, dass ferner ein die Offenstellung des Spülraums erfassender Sensor vorhanden ist, durch den eine Drosselung der Durchflussmenge von Spülflüssigkeit durch die Sprühöffnungen bei zugänglichem Spülraum ausgelöst ist. Mittels des Steuerelementes kann ein Prüfprogramm aktiviert werden, durch das auch bei zugänglichem Spülraum die Pumpe eingeschaltet und die Zufuhr von Spülflüssigkeit freigegeben wird. Gleichzeitig wird durch den die Offenstellung des Spülraums erfassenden Sensor die Durchflussmenge an den Sprühöffnungen reduziert. Damit ist ohne die Gefahr des Austretens von Spülflüssigkeit aus dem Spülraum eine Überprüfung der Durchlässigkeit der Sprühöffnungen möglich.The above-mentioned object is achieved in a dishwashing machine which can be operated according to the above-described method in that a control unit is provided by which the pump can be switched on and the flushing liquid can be opened directly or indirectly when the washing compartment is accessible Open position of the Spülraums detecting sensor is present, through which a throttling of the flow rate of rinsing liquid is triggered by the spray openings with accessible Spülraum. By means of the control, a test program can be activated by the pump is switched on and the supply of rinsing liquid is released even with accessible Spülraum. At the same time, the flow rate at the spray openings is reduced by the sensor detecting the open position of the flushing chamber. This is a check of the permeability of the spray holes possible without the risk of leakage of rinsing fluid from the washing.
Der Sensor kann in Abhängigkeit vom Betätigen des das Prüfprogramm aktivierenden Steuerelementes eingeschaltet werden.The sensor can be turned on in response to the actuation of the control program activating the test program.
Zweckmäßig ist es, wenn durch ein Steuersignal des Sensors der elektrische Steuerkreis der Pumpe im Sinne einer Verminderung der Förderleistung der Pumpe beeinflusst ist. Über ihren elektrischen Steuerkreis kann die Pumpe in ihrer Drehzahl und damit in ihrer Förderleistung soweit heruntergefahren werde, dass kein Abspritzen von Spülflüssigkeit aus dem Spülraum heraus nach außen erfolgt.It is expedient if the electrical control circuit of the pump is influenced by a control signal of the sensor in the sense of a reduction in the delivery rate of the pump. About their electrical control circuit, the pump in their speed and thus in their capacity will be shut down so far that no spraying of flushing fluid out of the washing out to the outside.
Eine weitere Möglichkeit zum Reduzieren der Durchflussmenge besteht darin, dass in der Zuleitung von der Pumpe zu der Sprüheinrichtung ein in seiner Durchflussmenge durch ein Steuersignal des Sensors regulierbares Drosselorgan angeordnet ist.Another possibility for reducing the flow rate is that in the supply line from the pump to the spray device is arranged in its flow rate adjustable by a control signal of the sensor throttle member.
Als Drosselorgan kann vorteilhafterweise ein Druckminderungsventil oder ein Blendenelement vorgesehen sein, dessen Blendenöffnung durch ein Steuersignal des Sensors im Sinne einer Verminderung der Durchflussmenge verstellbar ist. Werden solche Drosselorgane verwendet, dann kann die Pumpe auch während der Durchführung einer Überprüfung der Durchlässigkeit der Sprühöffnungen mit ihrer normalen Leistung betrieben werden.As a throttling device can advantageously be provided a pressure reducing valve or an orifice element whose aperture is adjustable by a control signal of the sensor in the sense of reducing the flow rate. If such throttling devices are used, then the pump can also be operated at its normal capacity while carrying out a check on the permeability of the spray orifices.
Anhand eines in der Zeichnung in schematischer Form dargestellten Ausführungsbeispieles wird die Erfindung nachfolgend noch näher erläutert.Reference to an embodiment shown in schematic form in the drawing, the invention will be explained in more detail below.
Mit 1 ist eine Geschirrspülmaschine bezeichnet, die im gezeigten Ausführungsbeispiel einen herausziehbaren Aufnahmebehälter 2 mit einem wannenförmigen Spülraum 3 aufweiset In dem Spülraum 3 ist eine Sprüheinrichtung 4 angebracht, die mit Sprühöffnungen 5 versehene Sprüharme 6 besitzt. Die Sprüharme 6 sind im gezeigten Ausführungsbeispiel drehbar angeordnet. Mittels einer unter dem Aufnahmebehälter 2 eingebauten, durch einen Elektromotor 7 angetriebenen Pumpe 8 wird den Sprüharmen 6 über ein mit dem Pumpenauslass 9 verbundenes Zuleitungsrohr 10 Spülflüssigkeit zugeführt. Die Spülflüssigkeit tritt dann über die Sprühöffnungen 5 aus und wird auf das in dem Spülraum 3 eingebrachte zu reinigende Geschirr gesprüht. Die Zufuhr der Spülflüssigkeit zur Pumpe 8 erfolgt über eine Zuflussleitung 11.1 denotes a dishwasher, which in the embodiment shown, a pull-
Im Zuge des Zuleitungsrohres 10 ist im gezeigten Ausführungsbeispiel ein regulierbares Drosselorgan 12 angeordnet. Das Drosselorgan 12 wird durch ein von einem die Offenstellung des Spülraums 2 erfassenden Sensor 13 ausgehendes Steuersignal gesteuert und zwar derart, dass durch dieses nur in der Offenstellung des Spülraums 2 von dem Sensor 13 abgegebene Steuersignal das Drosselorgan 12 auf minimale Durchflussmenge zugesteuert wird.In the course of the
Um bei zugänglichem Spülraum 3 die Überprüfung der Durchlässigkeit der Sprühöffnungen 5 durchführen zu können, ist ein Steuerelement 14, z.B. ein Taster, vorgesehen, durch dessen Betätigung sowohl der Elektromotor 7 eingeschaltet als auch ein im Zuge der Zuflussleitung 11 angeordnetes Ventil 15 freigeschaltet werden kann. Somit ist auch bei zugänglichem Spülraum 3, nämlich bei herausgezogenem Aufnahmebehälter 2, eine Förderung von Spülflüssigkeit möglich.In order to be able to carry out the checking of the permeability of the
Durch Betätigen des Steuerelementes 14 kann die Förderung von Spülflüssigkeit eingeleitet werden. Ist dann gleichzeitig der Aufnahmebehälter 2 herausgezogen also der Spülraum 3 zugänglich, wird durch den Sensor 13 die Durchflussmenge von Spülflüssigkeit durch die Sprühöffnungen 5 soweit reduziert, dass an den Sprühöffnungen 5 kein starker Strahl auftritt, der aus dem Spülraum 3 austreten könnte. Der Benutzer der Geschirrspülmaschine kann daher bei zugänglichem Spülraum 3, ohne die Gefahr nassgespritzt zu werden, die einzelnen Sprühöffnungen 5 beobachten und deren einwandfreie Durchlässigkeit überprüfen. Bei festgestellter mangelnder Durchlässigkeit können dann die betreffenden Sprühöffnungen 5 gezielt gereinigt werden.By pressing the
Bei einer Geschirrspülmaschine, bei der ein Spülbehälter durch eine Tür dicht verschlossen werden kann, wird bei Anwahl des Prüfprogramms durch den Benutzer und gleichzeitig geöffneter Tür ebenso die Durchflussmenge von Spülflüssigkeit durch die Sprühöffnungen soweit reduziert, dass an den Sprühöffnungen kein starker Strahl auftritt, der durch die geöffnete Türöffnung aus dem Spülbehälter austreten könnte, so dass die einzelnen Sprühöffnungen beobachtet und bei Bedarf gezielt gereinigt werden können. Bei einer Durchlaufgeschirrspülmaschine, bei der der Spülraum unter einer tunnelförmigen Abdeckung liegt, wird bei Anwahl des Prüfprogramms durch den Benutzer und gleichzeitig zugänglichen Spülraum z.B. durch teilweise geöffnete, abgehobene oder abgekippte tunnelförmigen Abdeckung des Spülraums ebenso die Durchflussmenge von Spülflüssigkeit durch die Sprühöffnungen soweit reduziert, dass an den Sprühöffnungen kein starker Strahl auftritt, der aus dem Spülraum austreten könnte, so dass die einzelnen Sprühöffnungen beobachtet und bei Bedarf gezielt gereinigt werden können.In a dishwasher in which a rinse tank can be sealed by a door, the flow rate of rinsing fluid through the spray holes is so far reduced when selecting the test program by the user while the door is open, that at the spray openings no strong jet occurs through the opened door opening could escape from the washing compartment, so that the individual spray openings can be observed and specifically cleaned if necessary. In a continuous dishwashing machine with the washing compartment under a tunnel-shaped cover, when the test program is selected by the user and at the same time the washing compartment is accessible, e.g. also reduces the flow rate of rinsing liquid through the spray holes by partially opened, lifted or tilted tunnel-shaped cover of the washing so that no strong jet occurs at the spray holes, which could escape from the washing so that the individual spray holes are observed and selectively cleaned if necessary can.
Mit der Erfindung ist es gelungen, für den Benutzer von Geschirrspülmaschinen jeglicher Art Verstopfungen der Sprühöffnungen leicht erkennbar zu machen.With the invention, it has been possible to make the user of dishwashers of any kind clogging of the spray openings easily recognizable.
Claims (11)
- Method of operating a dishwashing machine which has in a rinsing chamber at least one spray device supplied by a pump with rinsing liquid and provided with spray openings through which the rinsing liquid is sprayed into the rinsing chamber, characterised in that even when the rinsing chamber is accessible the pump is switched on and rinsing liquid can be fed, but wherein at the same time the throughflow quantity of the rinsing liquid through the spray openings is reduced to such an extent that no spraying of rinsing liquid from the open rinsing chamber outwardly into the free surrounding area takes place, wherein depending on the open setting of the rinsing chamber a reduction of the pump rotational speed is effected so that the conveying performance thereof is reduced to such an extent that no spraying of rinsing liquid into the free surrounding area takes place or depending on the open setting of the rinsing chamber at least one throttle element which is arranged in the feed from the pump to the spray unit and which reduces the throughflow quantity is activated.
- Method according to claim 1, characterised in that the throughflow quantity of the throttle element can be regulated.
- Method according to claim 1 or 2, characterised in that a pressure reducing valve is used as throttle element.
- Method according to claim 1 or 2, characterised in that an aperture element is provided as throttle element, the aperture opening of which aperture element is adjusted by means of a drive element, which is controlled in dependence on the open setting of the rinsing chamber, in the direction of reduced throughflow capability.
- Method according to claim 1 or 2, characterised in that a valve controlled in the two-cycle method is used as throttle element, wherein the two-cycle control is set in motion in dependence on the open setting of the rinsing chamber.
- Dishwashing machine which is operable in accordance with the method of any one of claims 1 to 5 and which has in a rinsing chamber (3) at least one spray device (4) supplied by a pump (8) with rinsing liquid and provided with spray openings (5) through which the rinsing liquid can be sprayed into the rinsing chamber (3), characterised in that a control element (14) is provided, by which when the rinsing chamber (3) is accessible directly or indirectly not only the pump (8) can be switched on, but also the feed of rinsing liquid can be freed, that in addition a sensor (13), which detects the open setting of the rinsing chamber (2) and by which a throttling of the throughflow quantity of rinsing liquid through the spray openings (5) is triggered when the rinsing chamber (3) is accessible, is present.
- Dishwashing machine according to claim 6, characterised in that the sensor (13) is activated in dependent on the actuation of the control element (14).
- Dishwashing machine according to claim 6 or 7, characterised in that the electrical control circuit of the pump (8) is influenced by a control signal of the sensor (13) in the sense of a reduction of the conveying performance of the pump (8).
- Dishwashing machine according to claim 6 or 7, characterised in that a throttle element (12), which can be regulated in its throughflow quantity by a control signal of the sensor (13), is arranged in the feed (10) from the pump (8) to the spray device (4).
- Dishwashing machine according to claim 8, characterised in that the throttle element (12) is a pressure reducing valve.
- Dishwashing machine according to claim 8, characterised in that an aperture element is provided as throttle element (12), the aperture opening of which aperture element is adjustable by a control signal of the sensor (13) in the sense of a reduction in the throughflow quantity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10064120 | 2000-12-21 | ||
| DE10064120A DE10064120A1 (en) | 2000-12-21 | 2000-12-21 | Method for operating a dishwasher and dishwasher |
| PCT/EP2001/013846 WO2002049494A1 (en) | 2000-12-21 | 2001-11-27 | Method for operating a dish washing machine, and a corresponding dish washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1345525A1 EP1345525A1 (en) | 2003-09-24 |
| EP1345525B1 true EP1345525B1 (en) | 2009-03-25 |
Family
ID=7668346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01271171A Expired - Lifetime EP1345525B1 (en) | 2000-12-21 | 2001-11-27 | Method for operating a dish washing machine, and a corresponding dish washing machine |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US6994098B2 (en) |
| EP (1) | EP1345525B1 (en) |
| AT (1) | ATE426352T1 (en) |
| DE (2) | DE10064120A1 (en) |
| ES (1) | ES2322886T3 (en) |
| WO (1) | WO2002049494A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101414634B1 (en) * | 2008-03-26 | 2014-08-06 | 엘지전자 주식회사 | device for cloth treating |
| CN111568329A (en) * | 2020-05-25 | 2020-08-25 | 上海明略人工智能(集团)有限公司 | Cleaning method and system for slag removal bin |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2529021C2 (en) * | 1974-07-11 | 1983-05-11 | Euro Hausgeräte GmbH, 6680 Neunkirchen | Dishwasher with adjustable rinsing liquor flow for at least two spray devices |
| DE2102572A1 (en) * | 1971-01-20 | 1972-08-03 | Resulta Kg | Automatic dishwasher |
| AT332043B (en) * | 1973-04-06 | 1976-09-10 | Bosch Hausgeraete Gmbh | DISHWASHER |
| US3888269A (en) * | 1973-07-17 | 1975-06-10 | Whirlpool Co | Control system for dishwasher |
| US4277290A (en) * | 1980-01-25 | 1981-07-07 | American Sterilizer Company | Low temperature washing and chemical sanitizing of foodware |
| SG120126A1 (en) | 1991-12-20 | 2006-03-28 | Fisher & Paykel Appliances Ltd | Dishwasher |
| JPH05176874A (en) * | 1991-12-27 | 1993-07-20 | Hoshizaki Electric Co Ltd | Controller for dish washer |
| US5151884A (en) * | 1992-03-02 | 1992-09-29 | Maytag Corporation | Control system for appliance indicator light and method for using same |
| DE4404369C2 (en) * | 1994-02-11 | 1997-04-30 | Miele & Cie | Inlet valve for the spray arm of a dishwasher |
| JPH10165913A (en) * | 1996-12-13 | 1998-06-23 | Sanyo Electric Co Ltd | Spray type cleaner |
| DE19732856C2 (en) * | 1997-07-30 | 2000-05-18 | Bht Hygiene Technik Ing H Bier | Cleaning machine and monitoring method |
| DE19736919B4 (en) * | 1997-08-25 | 2007-08-09 | AEG Hausgeräte GmbH | Dishwasher with at least one washing level |
| US6666219B2 (en) * | 2002-03-07 | 2003-12-23 | Maytag Corporation | Fast interrupt of dishwasher hand sensor |
-
2000
- 2000-12-21 DE DE10064120A patent/DE10064120A1/en not_active Withdrawn
-
2001
- 2001-11-27 DE DE50114797T patent/DE50114797D1/en not_active Expired - Lifetime
- 2001-11-27 AT AT01271171T patent/ATE426352T1/en not_active IP Right Cessation
- 2001-11-27 EP EP01271171A patent/EP1345525B1/en not_active Expired - Lifetime
- 2001-11-27 WO PCT/EP2001/013846 patent/WO2002049494A1/en active Application Filing
- 2001-11-27 ES ES01271171T patent/ES2322886T3/en not_active Expired - Lifetime
-
2003
- 2003-06-12 US US10/459,815 patent/US6994098B2/en not_active Expired - Lifetime
-
2005
- 2005-10-26 US US11/259,579 patent/US7320330B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US20040050403A1 (en) | 2004-03-18 |
| ATE426352T1 (en) | 2009-04-15 |
| EP1345525A1 (en) | 2003-09-24 |
| US20060102203A1 (en) | 2006-05-18 |
| DE10064120A1 (en) | 2002-06-27 |
| US7320330B2 (en) | 2008-01-22 |
| WO2002049494A1 (en) | 2002-06-27 |
| US6994098B2 (en) | 2006-02-07 |
| ES2322886T3 (en) | 2009-07-01 |
| DE50114797D1 (en) | 2009-05-07 |
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