EP2439325B1 - Water-transporting domestic appliance with an automatic metering system and method for automatic metering - Google Patents
Water-transporting domestic appliance with an automatic metering system and method for automatic metering Download PDFInfo
- Publication number
- EP2439325B1 EP2439325B1 EP11191927.0A EP11191927A EP2439325B1 EP 2439325 B1 EP2439325 B1 EP 2439325B1 EP 11191927 A EP11191927 A EP 11191927A EP 2439325 B1 EP2439325 B1 EP 2439325B1
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- EP
- European Patent Office
- Prior art keywords
- water
- household appliance
- pump
- treatment agent
- carrying household
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- 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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- 238000000034 method Methods 0.000 title claims description 8
- 238000005406 washing Methods 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims 10
- 239000003795 chemical substances by application Substances 0.000 description 26
- 238000003860 storage Methods 0.000 description 15
- 239000003599 detergent Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000013505 freshwater Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/42—Detergent or additive supply
Definitions
- the present invention relates to a water-conducting household appliance with an automatic dosing system.
- liquid treatment agents are increasingly used (see, eg EP 1959045 ), because unlike detergent powder, they can not clump together and their quantity can be better adapted to the different washing tasks.
- liquid treatment agents have the disadvantage that they can be retained less well in their designated containers.
- Conventional washing machines have so-called Ein Stammschalen, which are intended for manual filling with powdered treatment agent. These have a bottom and side walls, but no back wall so that incoming water can flush the dispenser trays.
- the fresh water inlet for the washing machine is guided over the dispensing trays, so that filled detergent powder is rinsed only at water inlet into the tub.
- liquid treatment would start immediately, even before it is planned and useful. For this reason, dispensing trays for the usually liquid softener are provided with a siphoning device which allows the softener to be flushed into the softener tray only with the water inlet.
- Dosing options have also been proposed which avoid filling into the conventional dispenser tray, e.g. Dosing containers, which are placed directly in the drum to the laundry.
- a washing machine has been put on the market, which can be automatically supplied with treatment agent via a separate, to be placed on the washing machine storage container and an outside of the container metering device with treatment (see DE 100 62 111 C1 ).
- a separate container takes up additional space, and the necessary long hoses are susceptible to interference, since they can stick together by viscous detergent.
- the object of the present invention was thus to provide a domestic appliance which at least partially eliminates the disadvantages of the prior art.
- a water-conducting domestic appliance having a housing and a treatment chamber and an automatic dosing system arranged within the housing and controllable via a control unit, wherein the dosing system comprises at least one storage container and at least one delivery pump arranged within the storage container and designed as a submersible pump.
- the invention is based on the external dimensions of a currently common water-conducting household appliance, but is not limited to such.
- the water-bearing domestic appliance is preferably a washing machine or a washer-dryer, however, the invention is also suitable e.g. for dishwashers or other cleaning equipment for which automatic dosing of liquid treatment agent is suitable.
- the water-conducting household appliance is a front-loading washing machine.
- Such Frontladerwaschmaschine has in their conventional, non-inventive form a so-called Ein istschublade with usually two to four manual Ein effetschalen on.
- the drawer is located at the top of the washing machine behind a panel. Since the manual dispensing trays do not utilize the entire available space, in a preferred embodiment the dispensing system according to the invention can be arranged in this area and utilize this space.
- the metering system comprises at least one, preferably at least two storage containers. However, there may also be more than two reservoirs if several types of treatment agents are to be provided, e.g. three or four or more. It is advantageous if a plurality of storage containers are present, since then several types of treatment agents can be stored and metered.
- detergent components such as enzymes, bleach, detergents, etc.
- various ready-made detergents may be available, e.g. Heavy-duty detergent, softener, wool detergent, black laundry detergent and the like.
- the storage containers are located in the dispensing drawer of a washing machine, then they are preferably adapted to the dimensions of these.
- the drawer is extended to the rear and extends to the back of the device.
- the dosing system - optionally in addition to the storage containers - still contains at least one manual dosing or Ein istschublade. If the dosing system is arranged in the dispensing drawer of a washing machine, it is advantageous if the storage container or containers are arranged in the rear region and the at least one manual dispenser tray in the front region.
- the metering system is detachably mounted within the device and removable from the device. It is advantageous, but not essential, for the metering system to be removable as a whole, but it is particularly advantageous if the storage containers can be removed. This allows easy cleaning of the reservoir.
- the removability can be realized in various ways become.
- the reservoir are preferably in the drawer. This then preferably has approximately the dimensions of a condensate tank of a tumble dryer and can be partially extended or removed completely. To fill the reservoir, it is sufficient if the drawer is only partially pulled out. It is also possible that the reservoir itself can be removed separately from the drawer.
- the storage containers are thus preferably designed so that they can be filled manually.
- they can have a filling opening on their upper side or can also be closed with a lid.
- the lid is preferably detachable and removable.
- the lid may be provided with locking elements, which allows attachment to the storage containers.
- the reservoirs additionally comprise a drain opening for removing liquid treatment agent in case of erroneous filling.
- At least one conveying pump for liquid treatment agent is arranged in each case. This is designed so that it dips into the existing medium in the reservoir to promote it.
- the use of submersible pumps, which are arranged directly in the reservoir and can dive into the treatment agent, is advantageous because it can be completely dispensed with hose connections. This facilitates maintenance and simplifies assembly.
- the suction side of such a pump designed as a submersible pump is suitably arranged as far to the bottom of the respective reservoir, as it is structurally possible.
- the delivery side of the feed pump is preferably outside of the reservoir. In a washing machine, it is particularly preferred if the feed pump promotes directly into a flushable downcomer, since then the subsidized treatment agent can be rinsed in with water and so diluted meets the laundry.
- the type of pump is not critical, it is preferably a gear pump.
- a removable lid for the reservoir is provided in which run in particular the lines.
- a lid is designed such that the at least one feed pump is connected to it.
- the at least one feed pump is preferably releasably and removably mounted in the reservoir. It can be mounted in the reservoir on a reservoir wall. It is particularly preferred that it is fastened under the lid so that the contacting of the lines is as high as possible above the liquid level.
- the feed pump may be mounted via catches or other releasable fasteners, or may be permanently attached, e.g. by gluing, welding or the like.
- the lines are arranged in the lid. This has the advantage that they can be protected from moisture.
- the at least one feed pump is preferably linked to a control unit which activates all feed pumps, and which in an advantageous embodiment can also calculate the amount to be dispensed and drives the feed pumps accordingly.
- the feed pumps have a rotating delivery unit, more preferably gear pumps. These have the advantage that the volumes delivered are easily controllable.
- the determination of the desired amount of a treatment agent is known per se and depends on various parameters, e.g. the load, the type of laundry, the type of wash program selected, the water hardness, the degree of soiling and the like.
- the feed pump is driven.
- the pump is preferably operated at a fixed voltage and controlled the amount delivered over time.
- the delivery rate can also be varied differently, e.g. by the speed of the drive.
- the detection of the actual amount of the treatment agent is preferably carried out via the measurement of the revolutions of the delivery unit of the feed pump.
- the detection of the actual amount can also be derived from the number of revolutions of the pump drive.
- the feed pump has a DC drive, and therefore, the number of revolutions of a DC drive can be measured to detect the actual amount of the treatment agent.
- the DC drive preferably operates with an electrical voltage from the low voltage range, in particular with an electrical voltage between 3 volts and 15 volts. Yet another possibility is to determine the number of revolutions of the pump drive from the waveform of the drive. This has the great advantage that then no additional sensors are necessary.
- the supplied actual amount of treatment agent is, for example, detected several times, and this value is compared with the setpoint value until the actual value has reached the setpoint value. Then the feed pump is switched off. The comparisons are made by a control unit arranged in the device.
- Fig. 1 shows a washing machine 1 with a housing 2, a door 13 and a detergent drawer 10 in the upper left portion of the panel 11.
- the drawer 10 is shown in a partially extended state and gives the view of a left-hand and reaching up to the panel part manual dosing chamber 22nd , as well as two reservoir 24 with filling openings 25 in the lid 26 free.
- both reservoirs 24 are covered by a common releasably arranged cover 26. Through the filling openings 25, the user can fill a larger amount of treatment agent in the reservoir 24.
- control unit 40 which controls the submersible pumps 30 serving as feed pumps 30 and covers the flow rate.
- the control unit 40 is supplied by the usual sensors with information about pollution, load, type of laundry and the like and calculates from this the optimal dosage for the respective treatment agent, which is then funded by submersible pumps 30 and metered accurately.
- Fig. 2 shows the washing machine 1 off Fig. 1 , but in a lateral sectional view.
- the submersible pumps 30 are shown in the interior of the reservoir 24.
- the Ein Hugheszutechnisch 14 which includes both the manual metering chamber 22, and a Run-down shaft 34 for the reservoir 24 supplied by the fresh water supply line 12 with fresh water.
- the two submersible pumps 30 both convey into the downcomer 34, which opens into an inlet hose 38 which communicates directly with the tub 8.
- the washing machine further comprises conventional equipment features, such as a laundry drum 6, which is rotatably mounted in a tub 8 and closed with the door 13. Within the tub is thus the treatment room 4.
- the drum 6 is driven by the drive motor 16.
- Fig. 3 shows details of the dosing 20.
- the submersible pumps 30 are shown in dashed lines in de representation of the dosing system 20 to show at what position they are in the interior of the reservoir 24. In the illustration of the lid 26, the submersible pumps 30 are attached directly to the cover 26.
- the two submersible pumps 30 both convey into a downcomer 34. In this embodiment, only a single downcomer 34 is provided for both submersible pumps 30. This has the advantage that the Ein Hugheszutechnisch 14 can be designed simply.
- the submersible pumps 30 each have two contacts 36 on the upper side. With these, the pump drive (not visible) via lines running in the cover 26 (also not visible) driven.
- the submersible pumps 30 each have a spout 33 on the delivery side 32, which opens into the downcomer.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Devices For Dispensing Beverages (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Domestic Plumbing Installations (AREA)
Description
Die vorliegende Erfindung betrifft ein wasserführendes Haushaltsgerät mit einem automatischen Dosiersystem.The present invention relates to a water-conducting household appliance with an automatic dosing system.
In modernen wasserführenden Haushaltsgeräten, insbesondere Waschmaschinen, werden vermehrt flüssige Behandlungsmittel verwendet (siehe z.B.
Es wurden auch bereits Dosierungsmöglichkeiten vorgeschlagen, die das Einfüllen in die herkömmliche Einspülschale vermeiden, z.B. Dosierbehälter, die direkt in die Trommel zu der Wäsche gelegt werden.Dosing options have also been proposed which avoid filling into the conventional dispenser tray, e.g. Dosing containers, which are placed directly in the drum to the laundry.
Neben Lösungen für die manuelle Dosierung wurde im Stand der Technik auch schon versucht, eine automatische Dosierung für flüssige Behandlungsmittel bereitzustellen, um Fehldosierungen durch den Benutzer zu vermeiden. So offenbaren
In jüngerer Zeit wurde eine Waschmaschine auf den Markt gebracht, welche über einen separaten, auf der Waschmaschine zu platzierenden Vorratsbehälter für Behandlungsmittel und eine außerhalb des Behälters angeordnete Dosiereinrichtung mit Behandlungsmittel automatisch versorgt werden kann (siehe
Aus
Die Aufgabe der vorliegenden Erfindung bestand somit darin, ein Haushaltsgerät bereitzustellen, welches die Nachteile des Stands der Technik zumindest teilweise beseitigt.The object of the present invention was thus to provide a domestic appliance which at least partially eliminates the disadvantages of the prior art.
Die Aufgabe wird gelöst durch ein wasserführendes Haushaltsgerät mit einem Gehäuse und einem Behandlungsraum und einem innerhalb des Gehäuses angeordneten und über eine Steuereinheit steuerbaren automatischen Dosiersystem, wobei das Dosiersystem mindestens einen Vorratsbehälter und mindestens eine innerhalb des Vorratsbehälters angeordnete und als Tauchpumpe ausgestaltete Förderpumpe umfasst.The object is achieved by a water-conducting domestic appliance having a housing and a treatment chamber and an automatic dosing system arranged within the housing and controllable via a control unit, wherein the dosing system comprises at least one storage container and at least one delivery pump arranged within the storage container and designed as a submersible pump.
Die Erfindung geht von den Außenmaßen eines derzeit üblichen wasserführenden Haushaltsgerätes aus, ist jedoch nicht auf solche beschränkt. Das wasserführende Haushaltsgerät ist vorzugsweise eine Waschmaschine oder ein Waschtrockner, die Erfindung eignet sich jedoch auch z.B. für Geschirrspülmaschinen oder andere Reinigungsgeräte, für die eine automatische Dosierung von flüssigem Behandlungsmittel geeignet ist.The invention is based on the external dimensions of a currently common water-conducting household appliance, but is not limited to such. The water-bearing domestic appliance is preferably a washing machine or a washer-dryer, however, the invention is also suitable e.g. for dishwashers or other cleaning equipment for which automatic dosing of liquid treatment agent is suitable.
In einer besonders bevorzugten Ausführungsform ist das wasserführende Haushaltsgerät eine Frontladerwaschmaschine. Eine solche Frontladerwaschmaschine weist in ihrer herkömmlichen, nicht erfindungsgemäßen Form eine sogenannte Einspülschublade mit in der Regel zwei bis vier manuellen Einspülschalen auf. Die Schublade befindet sich im oberen Bereich der Waschmaschine hinter einem Blendenteil. Da die manuellen Einspülschalen nicht den gesamten zur Verfügung stehenden Raum ausnutzen, kann in einer bevorzugten Ausführungsform das erfindungsgemäße Dosiersystem in diesem Bereich angeordnet sein und diesen Raum ausnutzen.In a particularly preferred embodiment, the water-conducting household appliance is a front-loading washing machine. Such Frontladerwaschmaschine has in their conventional, non-inventive form a so-called Einspülschublade with usually two to four manual Einspülschalen on. The drawer is located at the top of the washing machine behind a panel. Since the manual dispensing trays do not utilize the entire available space, in a preferred embodiment the dispensing system according to the invention can be arranged in this area and utilize this space.
Das erfindungsgemäße Dosiersystem umfasst mindestens einen, vorzugsweise mindestens zwei Vorratsbehälter. Es können aber auch mehr als zwei Vorratsbehälter vorhanden sein, wenn mehrere Arten von Behandlungsmitteln bereitgestellt werden sollen, z.B. drei oder vier oder noch mehr. Es ist vorteilhaft, wenn mehrere Vorratsbehälter vorhanden sind, da dann mehrere Arten von Behandlungsmitteln bevorratet und zudosiert werden können. Beispielsweise können Waschmittelkomponenten, wie etwa Enzyme, Bleiche, Detergentien etc. separat dosiert werden, oder aber es können verschiedene fertig konfektionierte Reinigungsmittel zur Verfügung stehen, z.B. Vollwaschmittel, Weichspüler, Wollwaschmittel, Spezialmittel für schwarze Wäsche und dergleichen.The metering system according to the invention comprises at least one, preferably at least two storage containers. However, there may also be more than two reservoirs if several types of treatment agents are to be provided, e.g. three or four or more. It is advantageous if a plurality of storage containers are present, since then several types of treatment agents can be stored and metered. For example, detergent components, such as enzymes, bleach, detergents, etc., may be dosed separately, or various ready-made detergents may be available, e.g. Heavy-duty detergent, softener, wool detergent, black laundry detergent and the like.
Befinden sich die Vorratsbehälter in der Einspülschublade einer Waschmaschine, so sind sie vorzugsweise von den Ausmaßen an diese angepasst. In einer besonders vorteilhaften Ausführungsform ist die Schublade nach hinten verlängert und erstreckt sich bis hin an die Geräterückwand.If the storage containers are located in the dispensing drawer of a washing machine, then they are preferably adapted to the dimensions of these. In a particularly advantageous embodiment, the drawer is extended to the rear and extends to the back of the device.
Zweckmäßigerweise enthält das Dosiersystem - gegebenenfalls zusätzlich zu den Vorratsbehältern - noch mindestens eine manuelle Dosierkammer oder Einspülschublade. Wenn das Dosiersystem in der Einspülschublade einer Waschmaschine angeordnet ist, ist es vorteilhaft, wenn der oder die Vorratsbehälter im hinteren Bereich angeordnet sind und die mindestens eine manuelle Einspülschale im vorderen Bereich.Conveniently, the dosing system - optionally in addition to the storage containers - still contains at least one manual dosing or Einspülschublade. If the dosing system is arranged in the dispensing drawer of a washing machine, it is advantageous if the storage container or containers are arranged in the rear region and the at least one manual dispenser tray in the front region.
Vorzugsweise ist das Dosiersystem innerhalb des Geräts lösbar angeordnet und aus dem Gerät entnehmbar. Es ist vorteilhaft, aber nicht unbedingt erforderlich, dass das Dosiersystem als ganzes entnehmbar ist, besonders vorteilhaft ist es aber, wenn die Vorratsbehälter entnehmbar sind. Dies ermöglicht ein leichtes Reinigen der Vorratsbehälter. Die Entnehmbarkeit kann auf verschiedene Art und Weise realisiert werden. Im Fall einer Waschmaschine oder eines Waschtrockners, die mit einer Einspülschublade ausgestattet sind, befinden sich die Vorratsbehälter vorzugsweise in der Schublade. Diese hat dann vorzugsweise in etwa die Abmessungen eines Kondenswasserbehälters eines Wäschetrockners und kann teilweise ausgezogen oder auch komplett entnommen werden. Zur Befüllung der Vorratsbehälter genügt es, wenn die Schublade lediglich teilweise ausgezogen wird. Es ist auch möglich, dass die Vorratsbehälter selbst separat aus der Schublade entnehmbar sind.Preferably, the metering system is detachably mounted within the device and removable from the device. It is advantageous, but not essential, for the metering system to be removable as a whole, but it is particularly advantageous if the storage containers can be removed. This allows easy cleaning of the reservoir. The removability can be realized in various ways become. In the case of a washing machine or a washer-dryer, which are equipped with a Einspülschublade, the reservoir are preferably in the drawer. This then preferably has approximately the dimensions of a condensate tank of a tumble dryer and can be partially extended or removed completely. To fill the reservoir, it is sufficient if the drawer is only partially pulled out. It is also possible that the reservoir itself can be removed separately from the drawer.
Die Vorratsbehälter sind so vorzugsweise so gestaltet, dass sie manuell befüllbar sind. Beispielsweise können sie an ihrer Oberseite eine Befüllöffnung aufweisen oder auch mit einem Deckel verschließbar sein. Auch der Deckel ist vorzugsweise lösbar und abnehmbar. Der Deckel kann mit Rastelementen versehen sein, welche ein Befestigen mit den Vorratsbehältern ermöglicht. Vorzugsweise umfassen die Vorratsbehälter zusätzlich eine Entleerungsöffnung zum Entfernen von flüssigem Behandlungsmittel im Fall eines irrtümlichen Befüllens.The storage containers are thus preferably designed so that they can be filled manually. For example, they can have a filling opening on their upper side or can also be closed with a lid. Also, the lid is preferably detachable and removable. The lid may be provided with locking elements, which allows attachment to the storage containers. Preferably, the reservoirs additionally comprise a drain opening for removing liquid treatment agent in case of erroneous filling.
Innerhalb des Vorratsbehälters ist jeweils mindestens eine Förderpumpe für flüssiges Behandlungsmittel angeordnet. Diese ist so ausgestaltet, dass sie in das im Vorratsbehälter vorhandene Medium eintaucht, um es zu fördern. Die Verwendung von Tauchpumpen, die direkt im Vorratsbehälter angeordnet sind und in das Behandlungsmittel eintauchen können, ist von Vorteil, da auf Schlauchverbindungen vollständig verzichtet werden kann. Dies erleichtert die Wartung und vereinfacht die Montage.Within the reservoir, at least one conveying pump for liquid treatment agent is arranged in each case. This is designed so that it dips into the existing medium in the reservoir to promote it. The use of submersible pumps, which are arranged directly in the reservoir and can dive into the treatment agent, is advantageous because it can be completely dispensed with hose connections. This facilitates maintenance and simplifies assembly.
Die Saugseite einer solchen als Tauchpumpe ausgestalteten Förderpumpe ist zweckmäßigerweise so weit am Boden des jeweiligen Vorratsbehälters angeordnet, wie es konstruktiv möglich ist. Die Förderseite der Förderpumpe liegt vorzugsweise außerhalb des Vorratsbehälters. In einer Waschmaschine ist es besonders bevorzugt, wenn die Förderpumpe direkt in einen spülbaren Ablaufschacht fördert, da dann das geförderte Behandlungsmittel zusammen mit Wasser eingespült werden kann und so verdünnt auf die Wäsche trifft.The suction side of such a pump designed as a submersible pump is suitably arranged as far to the bottom of the respective reservoir, as it is structurally possible. The delivery side of the feed pump is preferably outside of the reservoir. In a washing machine, it is particularly preferred if the feed pump promotes directly into a flushable downcomer, since then the subsidized treatment agent can be rinsed in with water and so diluted meets the laundry.
Die Art der Förderpumpe ist nicht entscheidend, vorzugsweise handelt es sich um eine Zahnradpumpe. Die Steuerung und Stromversorgung der Förderpumpe erfolgt über eine elektrische Kontaktierung.The type of pump is not critical, it is preferably a gear pump. The control and power supply of the feed pump via an electrical contact.
Vorzugsweise ist ein abnehmbarer Deckel für den Vorratsbehälter vorgesehen, in dem insbesondere die Leitungen verlaufen. Vorzugsweise ist ein solcher Deckel so ausgestaltet, dass die zumindest eine Förderpumpe mit ihm verbunden ist.Preferably, a removable lid for the reservoir is provided in which run in particular the lines. Preferably, such a lid is designed such that the at least one feed pump is connected to it.
Die zumindest eine Förderpumpe ist vorzugsweise lösbar und entnehmbar in dem Vorratsbehälter befestigt. Sie kann dabei im Vorratsbehälter an einer Vorratsbehälterwand montiert sein. Besonders bevorzugt ist sie unter dem Deckel befestigt, so dass die Kontaktierung der Leitungen möglichst oberhalb des Flüssigkeitspegels liegt. Die Förderpumpe kann über Verrastungen oder andere lösbare Befestigungen montiert oder auch unlösbar befestigt sein, z.B. durch Verkleben, Verschweißen oder dergleichen.The at least one feed pump is preferably releasably and removably mounted in the reservoir. It can be mounted in the reservoir on a reservoir wall. It is particularly preferred that it is fastened under the lid so that the contacting of the lines is as high as possible above the liquid level. The feed pump may be mounted via catches or other releasable fasteners, or may be permanently attached, e.g. by gluing, welding or the like.
Die Versorgung der zumindest einen Förderpumpe mit Strom erfolgt über Kontaktierungen vorzugsweise an der Oberseite einer Förderpumpe, und über Leitungen, welche zweckmäßigerweise an der Oberseite der Vorratsbehälter geführt sind. Vorzugsweise sind die Leitungen im Deckel angeordnet. Dies hat den Vorteil, dass sie vor Feuchtigkeit geschützt werden können.The supply of the at least one feed pump with power via contacts preferably at the top of a feed pump, and via lines which are suitably guided at the top of the reservoir. Preferably, the lines are arranged in the lid. This has the advantage that they can be protected from moisture.
Die zumindest eine Förderpumpe ist vorzugsweise mit einer Steuereinheit verknüpft, welche alle Förderpumpen ansteuert, und welche in einer vorteilhaften Ausgestaltung auch die zu dosierende Menge berechnen kann und die Förderpumpen entsprechend antreibt.The at least one feed pump is preferably linked to a control unit which activates all feed pumps, and which in an advantageous embodiment can also calculate the amount to be dispensed and drives the feed pumps accordingly.
Die vorliegende Erfindung betrifft weiterhin ein Verfahren zum automatischen Dosieren von Behandlungsmittel in einem wasserführenden Haushaltsgerät der oben beschriebenen Art, wobei das Verfahren die folgenden Schritte umfasst:
- i) Ermitteln der Art und einer Soll-Menge des zu dosierenden Behandlungsmittels,
- ii) Antreiben einer dem zu dosierenden Behandlungsmittel zugeordneten Förderpumpe,
- iii) Bestimmen einer zugeführten Ist-Menge des zu dosierenden Behandlungsmittels während Schritt ii),
- iv) Vergleichen der zugeführten Ist-Menge an Behandlungsmittel mit der in Schritt i) bestimmten Soll-Menge,
- v) Abschalten der Tauchpumpe bei Erreichen der in Schritt i) bestimmten Sollmenge.
- i) determining the type and a target amount of the treatment agent to be metered,
- ii) driving a delivery pump associated with the treatment agent to be metered,
- iii) determining a supplied actual amount of the treatment agent to be metered during step ii),
- iv) comparing the supplied actual amount of treatment agent with the target quantity determined in step i),
- v) switching off the submersible pump when reaching the setpoint determined in step i).
Wie bereits erwähnt, weisen die Förderpumpen eine rotierende Fördereinheit auf, besonders bevorzugt handelt es sich um Zahnradpumpen. Diese haben den Vorteil, dass die geförderten Volumina gut steuerbar sind.As already mentioned, the feed pumps have a rotating delivery unit, more preferably gear pumps. These have the advantage that the volumes delivered are easily controllable.
Die Ermittlung der Soll-Menge eines Behandlungsmittels ist an sich bekannt und hängt von verschiedenen Parametern ab, z.B. der Beladung, der Art der Wäsche, der Art des gewählten Waschprogramms, der Wasserhärte, dem Verschmutzungsgrad und dergleichen. Nachdem die Soll-Menge an Behandlungsmittel bestimmt wurde, wird die Förderpumpe angetrieben. Hierbei wird die Pumpe vorzugsweise mit einer festgelegten Spannung betrieben und die geförderte Menge über die Zeit gesteuert. Die Fördermenge kann jedoch auch anders variiert werden, z.B. durch die Geschwindigkeit des Antriebs.The determination of the desired amount of a treatment agent is known per se and depends on various parameters, e.g. the load, the type of laundry, the type of wash program selected, the water hardness, the degree of soiling and the like. After the target amount of treatment agent has been determined, the feed pump is driven. In this case, the pump is preferably operated at a fixed voltage and controlled the amount delivered over time. However, the delivery rate can also be varied differently, e.g. by the speed of the drive.
Die Erfassung der Ist-Menge des Behandlungsmittels erfolgt vorzugsweise über die Messung der Umdrehungen der Fördereinheit der Förderpumpe. Alternativ oder zusätzlich kann die Erfassung der Ist-Menge auch aus der Anzahl der Umdrehungen des Pumpenantriebs abgeleitet werden. Besonders bevorzugt hat die Förderpumpe einen Gleichstromantrieb, und daher kann zur Erfassung der Ist-Menge des Behandlungsmittels auch die Anzahl der Umdrehungen eines Gleichstromantriebs gemessen werden. Der Gleichstromantrieb arbeitet vorzugsweise mit einer elektrischen Spannung aus dem Kleinspannungsbereich, insbesondere mit einer elektrischen Spannung zwischen 3 Volt und 15 Volt. Noch eine weitere Möglichkeit besteht darin, die Anzahl der Umdrehungen des Pumpenantriebs aus dem Signalverlauf des Antriebs zu ermitteln. Dies hat den großen Vorteil, dass dann keine zusätzlichen Sensoren notwendig sind.The detection of the actual amount of the treatment agent is preferably carried out via the measurement of the revolutions of the delivery unit of the feed pump. Alternatively or additionally, the detection of the actual amount can also be derived from the number of revolutions of the pump drive. Particularly preferably, the feed pump has a DC drive, and therefore, the number of revolutions of a DC drive can be measured to detect the actual amount of the treatment agent. The DC drive preferably operates with an electrical voltage from the low voltage range, in particular with an electrical voltage between 3 volts and 15 volts. Yet another possibility is to determine the number of revolutions of the pump drive from the waveform of the drive. This has the great advantage that then no additional sensors are necessary.
Die zugeführte Ist-Menge an Behandlungsmittel wird beispielsweise mehrfach erfasst, und dieser Wert wird solange mit dem Soll-Wert verglichen, bis der Ist-Wert den Soll-Wert erreicht hat. Dann wird die Förderpumpe abgeschaltet. Die Vergleiche erfolgen durch eine im Gerät angeordnete Steuereinheit.The supplied actual amount of treatment agent is, for example, detected several times, and this value is compared with the setpoint value until the actual value has reached the setpoint value. Then the feed pump is switched off. The comparisons are made by a control unit arranged in the device.
Ausführungsbeispiele der Erfindung werden nun anhand der Zeichnung näher erläutert, wobei diese die folgenden Ansichten zeigt:
-
Fig. 1 zeigt eine Waschmaschine in einer perspektivischen Ansicht. -
Fig. 2 zeigt dieselbe Waschmaschine ausFig.1 , jedoch schematisch und in einer seitlichen Schnittansicht. -
Fig. 3 zeigt einen Teil des Dosiersystems umfassend eine Einspülschaublade mit einer manuellen Dosierkammer und zwei Vorratsbehälter mit Tauchpumpen in einer perspektivischen Ansicht von oben. Ebenfalls dargestellt ist ein Deckel für das Dosiersystem in einer perspektivischen Ansicht auf die Innenseite.
-
Fig. 1 shows a washing machine in a perspective view. -
Fig. 2 shows the same washing machineFig.1 but schematically and in a side sectional view. -
Fig. 3 shows a portion of the dosing system comprising a Einspülschaublade with a manual dosing and two reservoirs with submersible pumps in a perspective view from above. Also shown is a lid for the dosing in a perspective view of the inside.
Ebenfalls gestrichelt dargestellt ist eine Steuereinheit 40, welche die hier als Förderpumpen 30 dienenden Tauchpumpen 30 steuert und die Fördermenge überdacht. Die Steuereinheit 40 wird von den üblichen Sensoren mit Informationen über Verschmutzung, Beladung, Wäscheart und dergleichen versorgt und berechnet daraus die optimale Dosierung für das jeweilige Behandlungsmittel, welches dann von Tauchpumpen 30 gefördert und exakt dosiert wird.Also shown in dashed lines is a
Die Waschmaschine umfasst weiterhin herkömmliche Ausstattungsmerkmale, wie etwa eine Wäschetrommel 6, welche drehbar gelagert in einem Laugenbehälter 8 angeordnet und mit der Tür 13 verschließbar ist. Innerhalb des Laugenbehälters befindet sich somit der Behandlungsraum 4. Angetrieben wird die Trommel 6 über den Antriebsmotor 16.The washing machine further comprises conventional equipment features, such as a laundry drum 6, which is rotatably mounted in a
- 11
- wasserführendes Haushaltsgerät, Waschmaschinewater-conducting household appliance, washing machine
- 22
- Gehäusecasing
- 44
- Behandlungsraumtreatment room
- 66
- Wäschetrommelwashing drum
- 88th
- Laugenbehältertub
- 1010
- BehandlungsmittelschubladeTreatment agent drawer
- 1111
- Blendecover
- 1212
- FrischwasserzuleitungFresh water supply
- 1414
- EinspülzuleitungEinspülzuleitung
- 1313
- Türdoor
- 1616
- Antriebsmotor für die WäschetrommelDrive motor for the laundry drum
- 2020
- Dosiersystemdosing
- 2222
- manuelle Dosierkammermanual dosing chamber
- 2424
- Vorratsbehälterreservoir
- 2525
- Einfüllöffnungfill opening
- 2626
- Deckel des VorratsbehältersCover of the storage container
- 3030
- Förderpumpe, TauchpumpeFeed pump, submersible pump
- 3131
- Saugseitesuction
- 3232
- Förderseiteconveying side
- 3333
- Ausgussspout
- 3434
- Ablaufschacht für VorratsbehälterDowncomer for storage tank
- 3636
- Kontaktierung PumpeContacting the pump
- 3838
- Einlaufschlauchinlet hose
- 4040
- Steuereinheitcontrol unit
Claims (18)
- Water-carrying household appliance (1) having a housing (2) and a treatment chamber (4) and an automatic dosing system (20) which is arranged within the housing (2) and which can be controlled by way of a control unit (40), the dosing system (20) comprising:- at least one reservoir (24) for a liquid treatment agent,- at least one delivery pump (30) arranged within the reservoir (24), characterised in that the delivery pump is embodied as an immersion pump (30).
- Water-carrying household appliance (1) according to claim 1, characterised in that the dosing system (20) additionally features at least one manual dosing chamber (22).
- Water-carrying household appliance (1) according to claim 1 or 2, characterised in that the dosing system (20) comprises at least two reservoirs (24).
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that the dosing system (20) is arranged in a detachable manner within the housing (2) and can be removed.
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that the immersion pump (30) is arranged in a detachable manner within the reservoir (24) and can be removed.
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that the reservoir (24) features a removable lid (26).
- Water-carrying household appliance (1) according to claim 6, characterised in that the at least one immersion pump (30) is connected to the lid.
- Water-carrying household appliance (1) according to claim 7, characterised in that each immersion pump (30) can be removed individually.
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that the household appliance (1) is a washing machine having a treatment agent drawer (10) and the dosing system (20) is arranged in the treatment agent drawer (10).
- Water-carrying household appliance (1) according to claim 9, characterised in that the dosing system (20) comprises at least one manual dosing chamber and at least two reservoirs (24).
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that each immersion pump (30) features a suction side (31), which is positioned in the interior of the respective reservoir (24), and a delivery side (32), which opens into an outlet duct (34).
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that each immersion pump (30) is a gear pump (30).
- Water-carrying household appliance (1) according to one of the preceding claims, characterised in that each immersion pump (30) has a direct current drive.
- Water-carrying household appliance (1) according to claim 13, characterised in that the direct current drive can be operated in a low-voltage range.
- Method for the automatic dosing of treatment agent in a water-carrying household appliance (1) according to one of the preceding claims, the method comprising the following steps:i) determining the type and a desired quantity of treatment agent to be dosed,ii) driving a immersion pump (30) assigned to the treatment agent to be dosed,iii) determining a supplied actual quantity of the treatment agent to be dosed during step ii),iv) comparing the actual quantity of treatment agent supplied with the desired quantity determined in step i),v) switching off the immersion pump (30) when the desired quantity determined in step i) is reached.
- Method according to claim 15, characterised in that each delivery pump (30) features a rotationally operated delivery unit and in step iii) the actual quantity of treatment agent is detected by measuring the rotations of the delivery unit of the immersion pump (30).
- Method according to claim 16, characterised in that the number of rotations of a direct current drive is measured in step iii).
- Method according to one of claims 15 to 17, characterised in that the number of rotations of the pump drive is determined from the signal profile of the drive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11191927T PL2439325T3 (en) | 2008-10-07 | 2009-09-30 | Water-transporting domestic appliance with an automatic metering system and method for automatic metering |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008042655A DE102008042655A1 (en) | 2008-10-07 | 2008-10-07 | Water-conducting household appliance with an automatic dosing system and method for automatic dosing |
EP09783606.8A EP2340326B1 (en) | 2008-10-07 | 2009-09-30 | Water-carrying household appliance having an automatic dosing system, and method for automatic dosing |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09783606.8A Division EP2340326B1 (en) | 2008-10-07 | 2009-09-30 | Water-carrying household appliance having an automatic dosing system, and method for automatic dosing |
EP09783606.8 Division | 2009-09-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2439325A2 EP2439325A2 (en) | 2012-04-11 |
EP2439325A3 EP2439325A3 (en) | 2014-08-20 |
EP2439325B1 true EP2439325B1 (en) | 2016-03-23 |
Family
ID=41202615
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09783606.8A Active EP2340326B1 (en) | 2008-10-07 | 2009-09-30 | Water-carrying household appliance having an automatic dosing system, and method for automatic dosing |
EP11191927.0A Active EP2439325B1 (en) | 2008-10-07 | 2009-09-30 | Water-transporting domestic appliance with an automatic metering system and method for automatic metering |
EP11191930.4A Active EP2428607B1 (en) | 2008-10-07 | 2009-09-30 | Water-conducting household appliance with an automatic detergent dosing system |
EP11191928.8A Active EP2439326B1 (en) | 2008-10-07 | 2009-09-30 | Water-transporting domestic appliance with an automatic metering system and method for automatic metering |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09783606.8A Active EP2340326B1 (en) | 2008-10-07 | 2009-09-30 | Water-carrying household appliance having an automatic dosing system, and method for automatic dosing |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11191930.4A Active EP2428607B1 (en) | 2008-10-07 | 2009-09-30 | Water-conducting household appliance with an automatic detergent dosing system |
EP11191928.8A Active EP2439326B1 (en) | 2008-10-07 | 2009-09-30 | Water-transporting domestic appliance with an automatic metering system and method for automatic metering |
Country Status (8)
Country | Link |
---|---|
US (1) | US9334602B2 (en) |
EP (4) | EP2340326B1 (en) |
KR (4) | KR101287745B1 (en) |
CN (1) | CN102741472B (en) |
DE (2) | DE202008017876U1 (en) |
EA (1) | EA018881B1 (en) |
PL (4) | PL2428607T3 (en) |
WO (1) | WO2010040674A1 (en) |
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2008
- 2008-10-07 DE DE202008017876U patent/DE202008017876U1/en not_active Expired - Lifetime
- 2008-10-07 DE DE102008042655A patent/DE102008042655A1/en not_active Withdrawn
-
2009
- 2009-09-30 KR KR1020117007915A patent/KR101287745B1/en active IP Right Grant
- 2009-09-30 US US13/119,531 patent/US9334602B2/en active Active
- 2009-09-30 PL PL11191930T patent/PL2428607T3/en unknown
- 2009-09-30 PL PL11191928T patent/PL2439326T3/en unknown
- 2009-09-30 EP EP09783606.8A patent/EP2340326B1/en active Active
- 2009-09-30 KR KR1020137001578A patent/KR101466523B1/en active IP Right Grant
- 2009-09-30 KR KR1020137001575A patent/KR101466522B1/en active IP Right Grant
- 2009-09-30 PL PL11191927T patent/PL2439325T3/en unknown
- 2009-09-30 EP EP11191927.0A patent/EP2439325B1/en active Active
- 2009-09-30 EP EP11191930.4A patent/EP2428607B1/en active Active
- 2009-09-30 EA EA201170487A patent/EA018881B1/en not_active IP Right Cessation
- 2009-09-30 CN CN200980139670.9A patent/CN102741472B/en active Active
- 2009-09-30 KR KR1020137001574A patent/KR101466521B1/en active IP Right Grant
- 2009-09-30 EP EP11191928.8A patent/EP2439326B1/en active Active
- 2009-09-30 PL PL09783606T patent/PL2340326T3/en unknown
- 2009-09-30 WO PCT/EP2009/062698 patent/WO2010040674A1/en active Application Filing
Also Published As
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EP2439326A3 (en) | 2013-03-13 |
KR101466521B1 (en) | 2014-11-27 |
US20110186098A1 (en) | 2011-08-04 |
KR20130020928A (en) | 2013-03-04 |
EA018881B1 (en) | 2013-11-29 |
EP2428607A3 (en) | 2014-08-13 |
EP2428607B1 (en) | 2015-12-02 |
EP2340326B1 (en) | 2013-12-11 |
EP2439325A2 (en) | 2012-04-11 |
DE202008017876U1 (en) | 2010-09-23 |
EP2340326A1 (en) | 2011-07-06 |
EA201170487A1 (en) | 2011-12-30 |
PL2439325T3 (en) | 2016-08-31 |
KR101466522B1 (en) | 2014-11-27 |
CN102741472B (en) | 2015-03-11 |
KR20130020930A (en) | 2013-03-04 |
KR101287745B1 (en) | 2013-07-19 |
CN102741472A (en) | 2012-10-17 |
PL2439326T3 (en) | 2014-09-30 |
KR20110081180A (en) | 2011-07-13 |
PL2428607T3 (en) | 2016-05-31 |
US9334602B2 (en) | 2016-05-10 |
EP2439325A3 (en) | 2014-08-20 |
EP2439326A2 (en) | 2012-04-11 |
EP2439326B1 (en) | 2014-04-02 |
WO2010040674A1 (en) | 2010-04-15 |
PL2340326T3 (en) | 2014-04-30 |
EP2428607A2 (en) | 2012-03-14 |
KR101466523B1 (en) | 2014-11-27 |
DE102008042655A1 (en) | 2010-04-08 |
KR20130020929A (en) | 2013-03-04 |
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