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EP2427595B1 - Laundry treatment device having a steam generator and method for treating items to be washed - Google Patents

Laundry treatment device having a steam generator and method for treating items to be washed Download PDF

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Publication number
EP2427595B1
EP2427595B1 EP10719925.9A EP10719925A EP2427595B1 EP 2427595 B1 EP2427595 B1 EP 2427595B1 EP 10719925 A EP10719925 A EP 10719925A EP 2427595 B1 EP2427595 B1 EP 2427595B1
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EP
European Patent Office
Prior art keywords
treatment
laundry
steam
treatment chamber
steam generator
Prior art date
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EP10719925.9A
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German (de)
French (fr)
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EP2427595A1 (en
Inventor
Thomas Koch
Ingo Schulze
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Priority to PL10719925T priority Critical patent/PL2427595T3/en
Publication of EP2427595A1 publication Critical patent/EP2427595A1/en
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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/203—Laundry conditioning 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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 
    • D06F39/40—Steam generating 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/30—Drying processes 

Definitions

  • the invention relates to a laundry treatment appliance comprising a treatment room for receiving laundry, a steam generator, which can be fed via a source of water by a pump with water, a line connecting the steam generator with the treatment chamber, and an inlet for introducing steam into the treatment room.
  • the invention also relates to a method for treating laundry in such a laundry treatment appliance.
  • the DE 103 02 866 A1 describes a clothes dryer with a laundry drum and arranged at an air outlet and / or a loading opening of the laundry drum spraying device for spraying at least one additive in the laundry drum, and a control device for controlling the drying process.
  • the delivery rate of the fan can be reduced, the air flow can be switched off or the conveying direction can be reversed.
  • water vapor can be generated by heating water.
  • the DE 34 08 136 A1 describes a process for treating textile material such as fibers, textiles, hides, furs and the like, in which the material is treated with a liquid mist and dried by supplying warm air, wherein the liquid mist is formed by atomizing the liquid by means of a gas jet.
  • a gas jet a steam jet can be used.
  • the liquid is sucked directly from a container via a suction nozzle to the atomizing device, wherein the atomizing device is advantageously designed as a gas jet / liquid pump.
  • the invention was in particular the object of providing an improved laundry treatment device with a steam generator.
  • the invention relates to a laundry treatment appliance comprising a treatment room for receiving laundry, a steam generator which can be supplied with water via a water source by a pump, a conduit connecting the steam generator to the treatment room, and an inlet for introducing steam in the treatment room.
  • a nebulizer device is additionally connected via lines to the treatment space between the steam generator and the treatment room via a switching valve, wherein the Nebulizer is able to mix the vapor treatment agent in the form of an aerosol.
  • the switching valve it is possible to introduce only the generated water vapor or the mixture of the treatment agent aerosol and the generated water vapor in the treatment room.
  • the invention has the advantage that, in contrast to the methods and devices of the prior art, water vapor is not used alone as a treatment agent, but rather as a carrier medium for other, usually not be applied via steam media, for example in the household textile care.
  • the generated vapor is preferably 100% water and should be condensable in the presence of condensation nuclei. In general, it will therefore be so-called saturated steam, which is preferably heated.
  • saturated steam which is preferably heated.
  • the temperature of the steam can be selected depending on the application and treatment and the corresponding steam generator can also be selected or adjusted accordingly.
  • the steam generator is preferably arranged outside the treatment room and connected via a line to the interior of the treatment room.
  • the steam generator may be in the simplest case a device for generating hot water or a closed heated vessel or a pressure pipe system.
  • nebulizer for the treatment agent is preferably outside the treatment room, so that steam and Agent aerosol first mixed and can be introduced as a mixture in the treatment room.
  • nebulizer all known
  • Nebulizers for liquids or solid substances may be spray nebulizers, pressure nebulizers, ultrasonic nebulizers or even a Venturi nozzle.
  • the nebulizer is connected via a line to the interior of the treatment room, preferably so that the line that carries the steam, even outside the treatment room on the line that leads the treatment agent aerosol hits, so that both to to combine a mixture. Now, if this mixture is introduced into the treatment room, the aerosol particles in the steam serve as condensation nuclei, and small homogeneous water droplets are formed in the vapor stream, which consist of water and the atomized treatment agent.
  • the steam flow is conducted past the suction area of the nozzle at a high speed.
  • the to be atomized treatment agent is sucked from a reservoir and entrained finely atomized in the steam.
  • liquid substances from the fields of textile cleaning, textile care, health, wellness, cosmetics and other areas in the laundry treatment appliance can be applied to the material to be treated.
  • solid substances can be aerosolized or atomized, for example, dispersed as fine powders in the vapor.
  • the speed of the steam flow and thus the amount of substance to be atomized can be regulated. This can be done in the simplest case by switching the steam outlet paths. Equally, this can also be done via a regulation of the water supply to the steam generator or via a control of the evaporator capacity.
  • the treatment room of the laundry treatment appliance if it is a washing machine, the tub, and, if it is a conventional tumble dryer, the drum. It is advantageous to choose the supply air flow for the steam and the aerosol treatment agent so that the mixture distributed as evenly as possible in the treatment room.
  • this inlet can in Area of the drum rear wall, or in the area between the dryer heater and the drum rear wall. Likewise, however, steam generation and atomization of the medium in the vapor stream can also take place directly in the area between the dryer heater and the drum rear wall.
  • the inlet is located directly on the treatment room designed as a laundry drum, in particular in the region of a sleeve, or in the case of a washing machine or a washer-dryer also in the area between the tub and the laundry drum.
  • the inlet for the mixture can also be selected so that it is passed through the wash liquor present in the tub or by the incoming fresh water. This offers the advantage that a treatment agent can be supplied in this way via steam during the washing process to the laundry to be treated.
  • the treatment agent is advantageously provided in a storage container for a single or multiple use, wherein this container may be configured as a replaceable cartridge or as a refillable container.
  • An advantage of the invention lies in the use of steam as a carrier medium for nebulized or atomized substances, which are otherwise difficult to disperse evenly in a laundry to be treated.
  • steam mixed with a treatment agent aerosol is passed through the wash water, even low concentrations of treatment agent can be evenly distributed in the wash water and applied even after washing.
  • This can in particular circumvent the disadvantage that contained in the detergent fragrances and the like within the washing or rinsing are largely flushed out of the material to be treated or evaporate quickly due to low boiling temperatures during the treatment in the dryer and thus the material to be treated no lasting Give scent.
  • the material to be treated is usually a laundry or dry matter, which is treated in a household laundry treatment device, ie usually all laundry Types of textiles and fabrics.
  • the laundry treatment appliances for which the present invention is suitable are in particular washing machines, dryers and washer-dryers.
  • FIG. 1 schematically shows the structure of a laundry treatment appliance.
  • FIG. 1 illustrated is the treatment room 1 of a laundry treatment appliance 100, which is connected to a water source 2.
  • the treatment room 1 is here a rotatable laundry drum 1, which receives the material to be treated, in particular laundry or dry material.
  • a line 6 passes water through a pump 3 in a steam generator 4. There, steam is generated, which can be introduced under pressure via a switching valve 5 and through a line 7 through the inlet 11 into the treatment tank 1.
  • This inlet 11 is arranged directly on the treatment tank 1; In the case of a washing machine, the inlet 11 could be arranged in a sleeve which seals a gap between a closed door and the treatment room 1, so that the steam from the inlet 11 can enter the laundry drum 1 directly.
  • a nebulizer 9 in this case in the form of a venturi 9, which is fed via the line 8 and via the switching valve 5 with the steam.
  • a line 12 At the suction side of the Venturi nozzle 9 is a line 12 which sucks 10 treatment agent from a reservoir.
  • the atomized treatment agent is also supplied via the line 13 via the inlet 11 to the treatment vessel.
  • the switching valve 5 it is possible to introduce only steam via the line 7 in the treatment vessel, or to introduce steam, which was mixed with the treatment agent aerosol by means of the venturi 9, via line 13.
  • This embodiment is particularly advantageous because it allows both the advantages of conventional steam treatment, as well as the additional application of other treatment agents in the form of aerosols, which are formed in particular by the Venturi principle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung betrifft ein Wäschebehandlungsgerät umfassend einen Behandlungsraum für die Aufnahme von Waschgut, einen Dampferzeuger, der über eine Wasserquelle durch eine Pumpe mit Wasser gespeist werden kann, einer Leitung, die den Dampferzeuger mit dem Behandlungsraum verbindet, sowie einem Einlass zum Einbringen von Dampf in den Behandlungsraum. Die Erfindung betrifft auch ein Verfahren zum Behandeln von Waschgut in einem solchen Wäschebehandlungsgerät.The invention relates to a laundry treatment appliance comprising a treatment room for receiving laundry, a steam generator, which can be fed via a source of water by a pump with water, a line connecting the steam generator with the treatment chamber, and an inlet for introducing steam into the treatment room. The invention also relates to a method for treating laundry in such a laundry treatment appliance.

Es ist bekannt, in Haushaltswäschebehandlungsgeräten, insbesondere Wäschetrocknern, aber auch Waschmaschinen oder Waschtrocknern, verschiedene Zusatzfunktionen anzubieten. Dazu gehören unter anderem das Glätten von Textilien, die Minderung von Knitterfalten, Geruchsbeseitigung, z.B. über Wasserdampfextraktion, das Aufheizen mit Dampf zusätzlich oder alternativ zum herkömmlichen Aufheizen bis hin zu hygienischen Maßnahmen sowohl für die Wäschepflege als auch für die Gerätepflege.It is known to offer various additional functions in household laundry treatment appliances, especially dryers, but also washing machines or dryers. These include, but are not limited to, texturing smoothing, wrinkle reduction, odor removal, e.g. About steam extraction, heating with steam in addition to or as an alternative to conventional heating up to hygienic measures both for the laundry care and for the care of the equipment.

So offenbart die EP 1 275 767 A1 einen Wäschetrockner oder Waschautomaten mit einer Bedampfungsvorrichtung, bei der nach dem Entzug von Wasser der Wäsche Dampf zugeführt wird, indem das unten im Laugenbehälter befindliche Wasser so weit erhitzt wird, dass es zu einer Dampfentwicklung kommt. Der Dampf dringt in die Trommel ein und beaufschlagt das darin befindliche Waschgut.So revealed the EP 1 275 767 A1 a clothes dryer or automatic washing machine with a steamer in which after the withdrawal of water of the laundry steam is supplied by the bottom of the tub water is heated so far that it comes to a vapor development. The steam penetrates into the drum and acts on the laundry contained therein.

In der DE 102 60 151 A1 ist ein Wäschebehandlungsgerät beschrieben, bei dem eine Verarbeitungseinheit für eine Flüssigkeit zum Erzeugen von Nebel oder Dampf mit dem Prozessluftkanal verbunden ist, so dass über die Zuführung von Prozessluft Dampf in die Wäschetrommel eingeführt werden kann. Dadurch sollen Geruchsstoffe aus Textilien entfernt werden. Ein ähnliches Verfahren ist auch in DE 10 2005 046 163 A1 beschrieben.In the DE 102 60 151 A1 a laundry treatment apparatus is described in which a processing unit for a liquid for generating mist or steam is connected to the process air duct, so that via the supply of process air steam can be introduced into the laundry drum. This should remove odors from textiles. A similar procedure is also in DE 10 2005 046 163 A1 described.

Die DE 103 02 866 A1 beschreibt einen Wäschetrockner mit einer Wäschetrommel und einer an einem Luftauslass und/oder einer Ladeöffnung der Wäschetrommel angeordneten Sprüheinrichtung zum Einsprühen zumindest eines Zusatzstoffes in die Wäschetrommel, sowie einer Steuereinrichtung zum Steuern des Trocknungsvorgangs.The DE 103 02 866 A1 describes a clothes dryer with a laundry drum and arranged at an air outlet and / or a loading opening of the laundry drum spraying device for spraying at least one additive in the laundry drum, and a control device for controlling the drying process.

Dabei ist mittels der Steuereinrichtung während des Einsprühens des zumindest einen Zusatzstoffes die Förderleistung des Lüfters reduzierbar, der Luftstrom abstellbar oder die Förderrichtung umkehrbar. Als Zusatzstoff, der dann zum Desinfizieren der Wäsche oder zum Aktivieren eines weiteren Zusatzstoffes nutzbar ist, ist durch Erhitzen von Wasser Wasserdampf erzeugbar.In this case, by means of the control device during the spraying of the at least one additive, the delivery rate of the fan can be reduced, the air flow can be switched off or the conveying direction can be reversed. As an additive, which can then be used to disinfect the laundry or to activate a further additive, water vapor can be generated by heating water.

Die DE 34 08 136 A1 beschreibt ein Verfahren zum Behandeln von textilem Gut wie Fasern, Textilien, Fellen, Pelzen und dergleichen, bei dem das Gut mit einem Flüssigkeitsnebel behandelt und durch Zuführen warmer Luft getrocknet wird, wobei der Flüssigkeitsnebel durch Zerstäuben der Flüssigkeit mittels eines Gasstrahles gebildet wird. Als Gasstrahl kann ein Dampfstrahl verwendet werden. Gemäß einer Ausgestaltung wird die Flüssigkeit aus einem Behälter über einen Saugstutzen an der Zerstäubungseinrichtung direkt angesaugt, wobei die Zerstäubungseinrichtung vorteilhafterweise als Gasstrahl/Flüssigkeitspumpe ausgebildet ist.The DE 34 08 136 A1 describes a process for treating textile material such as fibers, textiles, hides, furs and the like, in which the material is treated with a liquid mist and dried by supplying warm air, wherein the liquid mist is formed by atomizing the liquid by means of a gas jet. As a gas jet, a steam jet can be used. According to one embodiment, the liquid is sucked directly from a container via a suction nozzle to the atomizing device, wherein the atomizing device is advantageously designed as a gas jet / liquid pump.

Der Erfindung lag insbesondere die Aufgabe zugrunde, ein verbessertes Wäschebehandlungsgerät mit einem Dampferzeuger bereitzustellen.The invention was in particular the object of providing an improved laundry treatment device with a steam generator.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Vorrichtung und ein Verfahren mit den Merkmalen der jeweiligen unabhängigen Patentansprüche. Die abhängigen Patentansprüche betreffen bevorzugte Ausführungsformen, welche einzeln oder in Kombination miteinander eingesetzt werden können. Bevorzugten Ausführungsformen der Vorrichtung entsprechen dabei bevorzugte Ausführungen des Verfahrens und umgekehrt, und dies im Rahmen des technisch sinnvollen auch dann, wenn darauf hierin nicht explizit hingewiesen ist. Bevorzugte Ausführungsformen sind auch in der nachfolgenden Beschreibung aufgeführt.This object is achieved by a device and a method having the features of the respective independent claims. The dependent claims relate to preferred embodiments which can be used individually or in combination with each other. Preferred embodiments of the device thereby correspond to preferred embodiments of the method and vice versa, and this in the context of the technically reasonable even if it is not explicitly indicated herein. Preferred embodiments are also listed in the following description.

Die Erfindung betrifft insbesondere ein Wäschebehandlungsgerät, umfassend einen Behandlungsraum für die Aufnahme von Waschgut, einen Dampferzeuger, der über eine Wasserquelle durch eine Pumpe mit Wasser gespeist werden kann, einer Leitung, die den Dampferzeuger mit dem Behandlungsraum verbindet, sowie einem Einlass zum Einbringen von Dampf in den Behandlungsraum. Dabei ist zwischen dem Dampferzeuger und dem Behandlungsraum über ein Schaltventil zusätzlich eine Vernebelungseinrichtung über Leitungen mit dem Behandlungsraum verbunden angeordnet, wobei die Vernebelungseinrichtung in der Lage ist, dem Dampf Behandlungsmittel in Form eines Aerosols beizumischen. Durch das Schaltventil ist es möglich, lediglich den erzeugten Wasserdampf oder das Gemisch aus dem Behandlungsmittel-Aerosol und dem erzeugten Wasserdampf in den Behandlungsraum einzubringen.In particular, the invention relates to a laundry treatment appliance comprising a treatment room for receiving laundry, a steam generator which can be supplied with water via a water source by a pump, a conduit connecting the steam generator to the treatment room, and an inlet for introducing steam in the treatment room. In this case, a nebulizer device is additionally connected via lines to the treatment space between the steam generator and the treatment room via a switching valve, wherein the Nebulizer is able to mix the vapor treatment agent in the form of an aerosol. By the switching valve, it is possible to introduce only the generated water vapor or the mixture of the treatment agent aerosol and the generated water vapor in the treatment room.

Weiterhin betrifft die vorliegende Erfindung ein Verfahren zum Behandeln von Waschgut in einem Wäschebehandlungsgerät, welches Verfahren folgende Schritte umfasst:

  • Bereitstellen von Waschgut in dem Wäschebehandlungsgerät,
  • Erzeugen von Wasserdampf,
  • Erzeugen eines Behandlungsmittel-Aerosols,
  • Erzeugen eines Gemischs aus dem Behandlungsmittel-Aerosol und dem erzeugten Wasserdampf,
  • Behandeln des Waschguts mit dem Gemisch.
Furthermore, the present invention relates to a method for treating laundry in a laundry treatment appliance, which process comprises the following steps:
  • Providing laundry in the laundry treating appliance,
  • Generating water vapor,
  • Generating a treatment agent aerosol,
  • Generating a mixture of the treatment agent aerosol and the generated water vapor,
  • Treat the laundry with the mixture.

Vorzugsweise wir dieses Verfahren in dem erfindungsgemäßen Wäschebehandlungsgerät durchgeführt.Preferably, we carried out this method in the laundry treatment appliance according to the invention.

Die Erfindung hat den Vorteil, dass im Gegensatz zu den Verfahren und Geräten aus dem Stand der Technik Wasserdampf nicht allein als Behandlungsmittel verwendet wird, sondern vielmehr als Trägermedium für andere, üblicherweise nicht über Dampf applizierbaren Medien eingesetzt wird, beispielsweise in der Haushaltstextilpflege. Der erzeugte Dampf besteht vorzugsweise zu 100% aus Wasser und sollte in Gegenwart von Kondensationskernen kondensationsfähig sein. In der Regel wird es sich daher um so genannten Sattdampf handeln, der vorzugsweise erwärmt ist. Die Temperatur des Dampfes kann je nach Anwendung und Behandlungsmittel gewählt und der dazugehörige Dampferzeuger ebenfalls entsprechend ausgewählt oder eingestellt werden.The invention has the advantage that, in contrast to the methods and devices of the prior art, water vapor is not used alone as a treatment agent, but rather as a carrier medium for other, usually not be applied via steam media, for example in the household textile care. The generated vapor is preferably 100% water and should be condensable in the presence of condensation nuclei. In general, it will therefore be so-called saturated steam, which is preferably heated. The temperature of the steam can be selected depending on the application and treatment and the corresponding steam generator can also be selected or adjusted accordingly.

Der Dampferzeuger ist vorzugsweise außerhalb des Behandlungsraums angeordnet und über eine Leitung mit dem Inneren des Behandlungsraums verbunden. Der Dampferzeuger kann im einfachsten Fall eine Vorrichtung zum Erzeugen von Heißwasser oder ein geschlossenes beheiztes Gefäß oder ein Druckrohrsystem sein.The steam generator is preferably arranged outside the treatment room and connected via a line to the interior of the treatment room. The steam generator may be in the simplest case a device for generating hot water or a closed heated vessel or a pressure pipe system.

Ebenso wie der Dampferzeuger befindet sich auch der Vernebler für das Behandlungsmittel vorzugsweise außerhalb des Behandlungsraumes, damit Dampf und Behandlungsmittel-Aerosol zunächst gemischt und als Gemisch in den Behandlungsraum eingebracht werden können. Als Vernebelungseinrichtung eignen sich alle bekanntenLike the steam generator and the nebulizer for the treatment agent is preferably outside the treatment room, so that steam and Agent aerosol first mixed and can be introduced as a mixture in the treatment room. As nebulizer all known

Vernebelungseinrichtungen für Flüssigkeiten oder feste Substanzen. Hierbei kann es sich um Sprühvernebler, Druckvernebler, Ultraschallvernebler oder auch eine Venturidüse handeln. Auch der Vernebler ist über eine Leitung mit dem Innern des Behandlungsraums verbunden, und zwar vorzugsweise so, dass die Leitung, die den Dampf führt, noch außerhalb des Behandlungsraumes auf die Leitung, die das Behandlungsmittel-Aerosol führt, trifft, so dass sich beide zu einem Gemisch vereinigen. Wird nun dieses Gemisch in den Behandlungsraum eingeführt, so dienen die Aerosolpartikel im Dampf als Kondensationskerne, und es bilden sich im Dampfstrom kleine homogene Wassertröpfchen, die aus Wasser und dem vernebelten Behandlungsmittel bestehen.Nebulizers for liquids or solid substances. This may be spray nebulizers, pressure nebulizers, ultrasonic nebulizers or even a Venturi nozzle. Also, the nebulizer is connected via a line to the interior of the treatment room, preferably so that the line that carries the steam, even outside the treatment room on the line that leads the treatment agent aerosol hits, so that both to to combine a mixture. Now, if this mixture is introduced into the treatment room, the aerosol particles in the steam serve as condensation nuclei, and small homogeneous water droplets are formed in the vapor stream, which consist of water and the atomized treatment agent.

Es ist auch möglich, den Dampferzeuger und die Vernebelungseinrichtung so miteinander zu koppeln, dass der Dampf die Vernebelung fördert. Dies kann beispielsweise über eine durch den Dampf betriebene Venturidüse erfolgen. Dabei wird der Dampfstrom mit einer hohen Geschwindigkeit am Ansaugbereich der Düse vorbeigeleitet. Das zu vernebelnde Behandlungsmittel wird dabei aus einem Vorratsbehälter angesaugt und fein zerstäubt im Dampf mitgerissen.It is also possible to couple the steam generator and the nebulizer together so that the steam promotes nebulisation. This can be done for example via a steam-driven venturi. The steam flow is conducted past the suction area of the nozzle at a high speed. The to be atomized treatment agent is sucked from a reservoir and entrained finely atomized in the steam.

Als Behandlungsmittel können nahezu alle flüssigen Substanzen aus den Bereichen der Textilreinigung, Textilpflege, Gesundheit, Wellness, Kosmetik und anderen Bereichen im Wäschebehandlungsgerät auf das zu behandelnde Gut aufgebracht werden. Auch feste Substanzen können zu Aerosolen vernebelt oder zerstäubt, zum Beispiel als feine Pulver in dem Dampf verteilt werden.As a treatment agent almost all liquid substances from the fields of textile cleaning, textile care, health, wellness, cosmetics and other areas in the laundry treatment appliance can be applied to the material to be treated. Also, solid substances can be aerosolized or atomized, for example, dispersed as fine powders in the vapor.

In einer speziellen Ausprägung der Erfindung kann die Geschwindigkeit des Dampfstromes und damit die Menge der zu vernebelnden Substanz geregelt werden. Dies kann im einfachsten Fall über eine Umschaltung der Dampfaustrittswege erfolgen. Gleichermaßen kann dies aber auch über eine Regelung des Wasserzulaufs zum Dampferzeuger oder über eine Regelung der Verdampferleistung erfolgen.In a specific embodiment of the invention, the speed of the steam flow and thus the amount of substance to be atomized can be regulated. This can be done in the simplest case by switching the steam outlet paths. Equally, this can also be done via a regulation of the water supply to the steam generator or via a control of the evaporator capacity.

Der Behandlungsraum des Wäschebehandlungsgerätes ist, sofern es sich um eine Waschmaschine handelt, der Laugenbehälter, und, sofern es sich um einen üblichen Wäschetrockner handelt, die Trommel. Es ist vorteilhaft, den Zuluftstrom für den Dampf und das Behandlungsmittel-Aerosol so zu wählen, dass sich das Gemisch möglichst gleichmäßig im Behandlungsraum verteilt. Vorteilhafterweise kann sich dieser Einlass im Bereich der Trommelrückwand befinden, oder auch im Bereich zwischen der Trocknerheizung und der Trommelrückwand. Ebenso kann aber auch die Dampferzeugung und die Vernebelung des Mediums im Dampfstrom direkt im Bereich zwischen Trocknerheizung und Trommelrückwand erfolgen.The treatment room of the laundry treatment appliance, if it is a washing machine, the tub, and, if it is a conventional tumble dryer, the drum. It is advantageous to choose the supply air flow for the steam and the aerosol treatment agent so that the mixture distributed as evenly as possible in the treatment room. Advantageously, this inlet can in Area of the drum rear wall, or in the area between the dryer heater and the drum rear wall. Likewise, however, steam generation and atomization of the medium in the vapor stream can also take place directly in the area between the dryer heater and the drum rear wall.

Besonders bevorzugt befindet sich der Einlass direkt an dem als Wäschetrommel gestalteten Behandlungsraum, insbesondere im Bereich einer Manschette, oder im Falle einer Waschmaschine oder eines Waschtrockners auch im Bereich zwischen Laugenbehälter und Wäschetrommel.Particularly preferably, the inlet is located directly on the treatment room designed as a laundry drum, in particular in the region of a sleeve, or in the case of a washing machine or a washer-dryer also in the area between the tub and the laundry drum.

In einer besonderen Ausführungsform kann der Einlass für das Gemisch auch so gewählt sein, dass es durch die im Laugenbehälter vorhandene Waschflotte oder durch das zulaufende Frischwasser geleitet wird. Dies bietet den Vorteil, dass ein Behandlungsmittel auf diese Weise über Dampf auch während des Waschprozesses zu dem zu behandelnden Waschgut zugeführt werden kann.In a particular embodiment, the inlet for the mixture can also be selected so that it is passed through the wash liquor present in the tub or by the incoming fresh water. This offers the advantage that a treatment agent can be supplied in this way via steam during the washing process to the laundry to be treated.

Das Behandlungsmittel wird vorteilhafterweise in einem Vorratsbehälter für eine einmalige oder mehrmalige Anwendung bereitgestellt, wobei dieser Behälter als auswechselbare Kartusche oder als wiederbefüllbarer Behälter ausgestaltet sein kann.The treatment agent is advantageously provided in a storage container for a single or multiple use, wherein this container may be configured as a replaceable cartridge or as a refillable container.

Ein Vorteil der Erfindung liegt in dem Einsatz von Dampf als Trägermedium für vernebelte oder zerstäubte Substanzen, die ansonsten nur schwer gleichmäßig in einem zu behandelnden Waschgut verteilbar sind. Dadurch, dass Dampf, der mit einem Behandlungsmittel-Aerosol gemischt ist, durch das Waschwasser geleitet wird, können auch geringe Konzentrationen an Behandlungsmittel gleichmäßig im Waschwasser verteilt und auch noch nach der Wäsche aufgetragen werden. Damit lässt sich insbesondere der Nachteil umgehen, dass im Waschmittel befindliche Duftstoffe und dergleichen innerhalb des Waschens oder Spülens zum großen Teil aus dem zu behandelnden Gut wieder ausgespült werden oder aufgrund niedriger Siedetemperaturen während der Behandlung im Wäschetrockner schnell verdampfen und somit dem zu behandelnden Gut keinen dauerhaften Duft verleihen.An advantage of the invention lies in the use of steam as a carrier medium for nebulized or atomized substances, which are otherwise difficult to disperse evenly in a laundry to be treated. The fact that steam mixed with a treatment agent aerosol is passed through the wash water, even low concentrations of treatment agent can be evenly distributed in the wash water and applied even after washing. This can in particular circumvent the disadvantage that contained in the detergent fragrances and the like within the washing or rinsing are largely flushed out of the material to be treated or evaporate quickly due to low boiling temperatures during the treatment in the dryer and thus the material to be treated no lasting Give scent.

Das zu behandelnde Gut ist in der Regel ein Waschgut oder Trockengut, welches in einem Haushaltswäschebehandlungsgerät behandelt wird, d.h. in der Regel Wäsche aller Arten von Textilien und Geweben. Die Wäschebehandlungsgeräte, für die die vorliegende Erfindung geeignet ist, sind insbesondere Waschmaschinen, Trockner und Waschtrockner.The material to be treated is usually a laundry or dry matter, which is treated in a household laundry treatment device, ie usually all laundry Types of textiles and fabrics. The laundry treatment appliances for which the present invention is suitable are in particular washing machines, dryers and washer-dryers.

Die Erfindung wird nun anhand von bevorzugten Ausführungsbeispielen und unter Bezugnahme auf die Zeichnung näher erläutert.The invention will now be described with reference to preferred embodiments and with reference to the drawings.

Figur 1 zeigt schematisch den Aufbau eines Wäschebehandlungsgerätes. FIG. 1 schematically shows the structure of a laundry treatment appliance.

In Figur 1 dargestellt ist der Behandlungsraum 1 eines Wäschebehandlungsgeräts 100, welches an eine Wasserquelle 2 angeschlossen ist. Der Behandlungsraum 1 ist hier eine drehbare Wäschetrommel 1, die das zu behandelnde Gut, insbesondere Waschgut oder Trockengut, aufnimmt. Eine Leitung 6 leitet Wasser durch eine Pumpe 3 in einen Dampferzeuger 4. Dort wird Dampf erzeugt, welcher unter Druck über ein Schaltventil 5 und durch eine Leitung 7 durch den Einlass 11 in den Behandlungsbehälter 1 eingeleitet werden kann. Dieser Einlass 11 ist direkt am Behandlungsbehälter 1 angeordnet; im Falle einer Waschmaschine könnte der Einlass 11 in einer Manschette, die einen Spalt zwischen einer geschlossenen Tür und dem Behandlungsraums 1 abdichtet, angeordnet sein, so dass der Dampf aus dem Einlass 11 direkt in die Wäschetrommel 1 gelangen kann. Ebenfalls dargestellt ist eine Vernebelungseinrichtung 9, in diesem Fall in Form einer Venturidüse 9, welche über die Leitung 8 und über das Schaltventil 5 mit dem Dampf gespeist wird. An der Ansaugseite der Venturidüse 9 befindet sich eine Leitung 12, welche aus einem Vorratsbehälter 10 Behandlungsmittel ansaugt. Das vernebelte Behandlungsmittel wird über die Leitung 13 ebenfalls über den Einlass 11 dem Behandlungsbehälter zugeführt. Durch das Schaltventil 5 ist es möglich, lediglich Dampf über die Leitung 7 in den Behandlungsbehälter einzubringen, oder Dampf, der mit dem Behandlungsmittel-Aerosol mittels der Venturidüse 9 gemischt wurde, über die Leitung 13 einzubringen. Diese Ausführungsform ist besonders vorteilhaft, da sie sowohl die Vorteile der herkömmlichen Dampfbehandlung ermöglicht, als auch die zusätzliche Applikation weiterer Behandlungsmittel in Form von Aerosolen, die insbesondere durch das Venturiprinzip gebildet werden.In FIG. 1 illustrated is the treatment room 1 of a laundry treatment appliance 100, which is connected to a water source 2. The treatment room 1 is here a rotatable laundry drum 1, which receives the material to be treated, in particular laundry or dry material. A line 6 passes water through a pump 3 in a steam generator 4. There, steam is generated, which can be introduced under pressure via a switching valve 5 and through a line 7 through the inlet 11 into the treatment tank 1. This inlet 11 is arranged directly on the treatment tank 1; In the case of a washing machine, the inlet 11 could be arranged in a sleeve which seals a gap between a closed door and the treatment room 1, so that the steam from the inlet 11 can enter the laundry drum 1 directly. Also shown is a nebulizer 9, in this case in the form of a venturi 9, which is fed via the line 8 and via the switching valve 5 with the steam. At the suction side of the Venturi nozzle 9 is a line 12 which sucks 10 treatment agent from a reservoir. The atomized treatment agent is also supplied via the line 13 via the inlet 11 to the treatment vessel. Through the switching valve 5, it is possible to introduce only steam via the line 7 in the treatment vessel, or to introduce steam, which was mixed with the treatment agent aerosol by means of the venturi 9, via line 13. This embodiment is particularly advantageous because it allows both the advantages of conventional steam treatment, as well as the additional application of other treatment agents in the form of aerosols, which are formed in particular by the Venturi principle.

Claims (5)

  1. Laundry treatment apparatus (100) comprising a treatment chamber (1 for receiving articles of laundry, a steam generator (4), which can be supplied with water by a pump (3) by way of a water source (2), a line (7), which connects the steam generator (4) with the treatment chamber (1), and an inlet (11) for introduction of steam into the treatment chamber (1), characterised in that between the steam generator (4) and the treatment chamber (1) an atomisation device (9) is in addition arranged to be connected with the treatment chamber (1) by way of lines (8, 13) via a switching valve (5), wherein the atomisation device (9) is in a position of admixing treatment agent in the form of an aerosol to the steam so that it is possible by way of the switching valve (5) to introduce into the treatment chamber (1) merely the generated water steam or the mixture of the treatment agent aerosol and the generated water steam.
  2. Laundry treatment apparatus (100) according to claim 1, characterised in that the treatment agent is stored in a storage container (10) and can be fed by way of a line (12) to the atomisation device (9).
  3. Laundry treatment apparatus (100) according to one of the preceding claims, characterised in that the atomisation device (9) is a Venturi nozzle (9).
  4. Laundry treatment apparatus (100) according to any one of the preceding claims, characterised in that the inlet (11) is arranged directly at the treatment chamber (1) formed as a laundry drum (1).
  5. Method for treatment of laundry in laundry treatment apparatus (100), comprising the steps:
    - providing laundry in the laundry treatment apparatus (100),
    - generating water steam,
    - generating a treatment agent aerosol and
    - producing a mixture from the treatment agent aerosol and the generated water steam as well as treating the laundry in a treatment chamber (1) with the mixture, wherein it is possible by a switching valve (5) to introduce merely the generated water steam into the treatment chamber (1) or to introduce the produced mixture from the treatment agent aerosol and the generated water steam into the treatment chamber.
EP10719925.9A 2009-05-05 2010-04-22 Laundry treatment device having a steam generator and method for treating items to be washed Active EP2427595B1 (en)

Priority Applications (1)

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DE102009002814 2009-05-05
PCT/EP2010/055343 WO2010145869A1 (en) 2009-05-05 2010-04-22 Laundry treatment device having a steam generator and method for treating items to be washed

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EP2427595B1 true EP2427595B1 (en) 2014-01-15

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PL2427595T3 (en) 2014-06-30
WO2010145869A1 (en) 2010-12-23
US9493904B2 (en) 2016-11-15
US20120047662A1 (en) 2012-03-01
CN102405315B (en) 2014-07-09
EA018893B1 (en) 2013-11-29
EP2427595A1 (en) 2012-03-14
EA201171334A1 (en) 2012-05-30
CN102405315A (en) 2012-04-04

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