EP2598682A1 - Household appliance comprising an ozone generator - Google Patents

Household appliance comprising an ozone generator

Info

Publication number
EP2598682A1
EP2598682A1 EP11733862.4A EP11733862A EP2598682A1 EP 2598682 A1 EP2598682 A1 EP 2598682A1 EP 11733862 A EP11733862 A EP 11733862A EP 2598682 A1 EP2598682 A1 EP 2598682A1
Authority
EP
European Patent Office
Prior art keywords
ozone
steam
treatment area
generator
domestic appliance
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.)
Granted
Application number
EP11733862.4A
Other languages
German (de)
French (fr)
Other versions
EP2598682B1 (en
Inventor
Hans Eglmeier
Andreas Hanau
Hartmut Schaub
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL11733862T priority Critical patent/PL2598682T3/en
Publication of EP2598682A1 publication Critical patent/EP2598682A1/en
Application granted granted Critical
Publication of EP2598682B1 publication Critical patent/EP2598682B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/001—Washing machines, apparatus, or methods not otherwise provided for using ozone
    • D06F39/40—
    • 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 

Definitions

  • the invention relates to a domestic appliance, in particular a water-conducting domestic appliance, for example a laundry treatment appliance for washing and / or drying laundry.
  • a domestic appliance in particular a water-conducting domestic appliance, for example a laundry treatment appliance for washing and / or drying laundry.
  • the invention relates to the field of washing machines, tumble dryers and washer dryers.
  • a device for the treatment of dyed textiles with ozone is known. Specifically, the device relates to the treatment of blue-dyed jeans during manufacture to delicately effect fashion through partial decolorization. In contrast to a treatment of textiles with sand or stones, the fashionable effect can then be done without damaging the fabric, which has a favorable effect on the life of the jeans.
  • an ozone generator which generates ozone, which is guided to a Venturi tube.
  • Liquid from a housing of the device which delimits the treatment area is guided out of the housing via a pumping system and then passes back into the treatment area.
  • the pumping system leads the liquid through the Venturi tube, so that the generated ozone is taken along with the liquid.
  • the liquid and ozone are then passed through a pumping system which includes a pair of mixers which mix the circulated liquid with the ozone. Since ozone mainly with the Dye of textiles reacts when the fabric is wet, a targeted bleaching of the textile can be achieved in order to achieve the desired optical effect. As a result, fashionable effects can be achieved by bleaching, without mechanically abusing the tissue.
  • the object of the invention is to provide a domestic appliance, in particular a water-conducting domestic appliance, in which a germicidal effect with reduced energy consumption is made possible.
  • a domestic appliance in particular a water-conducting domestic appliance, for example a laundry treatment appliance for washing and / or drying laundry, in which a treatment area and a steam generator are provided, wherein a water-based steam generated by the steam generator enters the treatment area feasible, wherein an ozone generator is provided and wherein an ozone generated by the ozone generator can be guided with the steam in the treatment area.
  • the ozone generator is on the one hand connected to the steam generator and that the steam generated by the steam generator can be guided via the ozone generator into the treatment area.
  • the ozone generator can be connected to the treatment area, for example via a connecting piece. In this way, the steam can be conducted from the steam generator via the ozone generator in the treatment area to take the ozone generated in the ozone generator directly. This results in a simplified and compact design.
  • the ozone generator has a UV lamp and that the vapor is guided along the UV lamp.
  • the UV lamp can be configured as a UVC lamp which generates at least substantially electromagnetic radiation from a subarea of the ultraviolet radiation, namely in the range from 100 nm to 280 nm. Specifically, it is advantageous that the UV lamp generates electromagnetic radiation at least substantially in the range around 185 nm.
  • the UVC lamp is able to split di-oxygen molecules. The resulting oxygen radicals react with molecular di-oxygen to form ozone.
  • the steam guided by the ozone generator is thereby enriched with ozone.
  • Ozone has a strong germicidal effect, so that even small amounts and short exposure times are sufficient to damage the cell walls of microorganisms. Thus, the germicidal effect of the steam can be promoted and improved by the addition of ozone.
  • a door is provided for the treatment area, and that the UV lamp is arranged so that the radiation of the UV lamp through the door is perceptible. This allows a user to check from the outside, whether the UV lamp is functional. In addition, in addition to the steam carried into the treatment area, the user can also recognize the bluish glow of the UV lamp, so that the perceptible effect of the steam application is supported.
  • the door is at least partially translucent, using a suitable translucent material is used, which filters harmful radiation. Specifically, the escape of harmful ultraviolet radiation from a range of 100 nm to 280 nm is prevented.
  • the ozone from the ozone generator can be generated by a silent discharge from the air and that the ozone generated can be supplied to the steam conducted to the treatment area. This allows the ozone to be generated directly from the air and fed to the vapor stream.
  • the steam generator and the ozone generator are connected to the treatment area via an insulated piping system.
  • the treatment area may be limited, for example, by a container, in particular a tub.
  • the steam is specifically guided into the treatment area.
  • a targeted germicidal effect can be achieved with respect to the laundry to be treated.
  • the ozone-enriched vapor may be passed over components connected to the treatment area by generating a correspondingly large amount of vapor.
  • the ozone-enriched vapor can also be passed through a dispenser tray.
  • At least one treatment program has a germ-reducing treatment, in particular a germ-reducing treatment step, and that the ozone generator is activated during the germ-reducing treatment in such a way that an ozone concentration of the ozone generator is controlled ozone-containing steam even at a steam temperature of the steam of less than 60 ° C has a germ-reducing effect.
  • the ozone generator is activated during the germ-reducing treatment in such a way that an ozone concentration of the ozone generator is controlled ozone-containing steam even at a steam temperature of the steam of less than 60 ° C has a germ-reducing effect.
  • the steam introduced into the treatment area is enriched with the ozone just before it enters the treatment area. This results in relation to the amount of ozone produced a particularly favorable efficacy for the germ killing.
  • Fig. 1 shows a water-conducting domestic appliance in a schematic representation according to an embodiment
  • Fig. 2 is a schematic representation of an interior of the water-bearing
  • Fig. 1 shows a water-conducting domestic appliance 1 in a schematic representation according to an embodiment.
  • the water-bearing domestic appliance 1 can in particular be configured as a laundry treatment appliance and serve for washing and / or drying laundry.
  • the water-bearing domestic appliance 1 can be configured as a washing machine, washer-dryer or tumble dryer.
  • the water-bearing domestic appliance 1 is also suitable for other applications.
  • the domestic appliance 1 has a steam generator 2, which serves to generate water-based steam.
  • the steam generator 2 can in particular convert water into steam.
  • the steam generated by the steam generator 2 is guided to an ozone generator 4 as illustrated by an arrow 3.
  • the ozone generator 4 has an input 5 which is connected to an output 6 of the steam generator 2.
  • the ozone generator 4 has an output 7.
  • the steam generated by the steam generator 2 is guided via the input 5 into an interior 8 of the ozone generator 4.
  • the steam flows through the cylindrical interior 8 to the outlet 7.
  • From the outlet 7, the steam is passed on to a treatment area 9, as illustrated by the arrow 10.
  • the outlet 7 is connected, for example, to a tub or other container 11 ( Figure 2).
  • the container 1 1 limits the treatment area.
  • the ozone generator 4 serves to generate ozone.
  • a UV lamp 12 is arranged in the interior 8 of the ozone generator 4 in this embodiment.
  • the UV lamp 12 is preferably configured as a UVC lamp 12, which generates electromagnetic radiation in the range from about 100 nm to about 280 nm.
  • the wavelength of the electromagnetic radiation generated by the UV lamp 12 in this case is preferably in the range of about 185 nm.
  • the steam flowing through the interior space 8 is guided along the rod-shaped UV lamp 12.
  • the energy of the UV lamp 12 is able to split di-oxygen molecules.
  • the resulting oxygen radicals react with molecular di-oxygen to form ozone.
  • the guided through the inner space 8 steam is enriched with ozone.
  • Ozone-enriched vapor thus enters the treatment area 9.
  • Ozone has a strong germicidal effect. In this case, even relatively small amounts and short exposure times are sufficient to damage the cell walls of microorganisms.
  • surfaces that are provided in particular in the treatment area 9 can be treated.
  • laundry or the like can also be treated in the treatment area 9 by means of the ozone-added steam.
  • Fig. 2 shows the water-bearing domestic appliance 1 of the embodiment, wherein an interior is shown schematically.
  • the domestic appliance 1 has a housing 15, in the container 11 is suspended.
  • the container 11 surrounds the treatment area 9.
  • the container 1 1 may be configured as a tub 11.
  • an insulated line system 17 is arranged next to the container 11, which comprises the steam generator 2 and the ozone generator 4.
  • the steam generator 2 is connected via a pipe section 18 with the ozone generator 4.
  • the ozone generator 4 is connected via a flexible pipe section 19 with the container 1 1.
  • the pipe section 19 is preferably designed as a relatively short pipe section 19.
  • the pipe section 19 can also be omitted.
  • the domestic appliance 1 also has a door 20, which is partially formed of a glass. As a result, the door 20 is designed as a transparent door 20.
  • the treatment area 9 is during a treatment program laundry or the like, which is washed and / or dried, for example. This may be germs on the fabric of the laundry.
  • an inner side 22 of the container 11 may also be populated with germs.
  • a germ reducing treatment may be performed at a temperature of less than 60 ° C with a treatment time of about 20 minutes. Due to the ozone added water vapor, a germ-reducing effect is achieved. Here, the ozone amount that can be generated by the ozone generator 4 is limited so that a bleaching effect of the ozone-containing steam in the treatment area 9 is prevented.
  • the ozone generator 4 can also generate ozone in other ways.
  • ozone can also be generated directly from the air by means of a silent discharge and fed to the steam flow from the steam generator 2 to the treatment area 9.

Abstract

The invention relates to a household appliance (1) designed especially as a water-bearing household appliance (1), such as a laundry treatment appliance (1) for washing and/or drying laundry, comprising a treatment area (9) and a steam generator (2). Steam generated by the steam generator (2) can be guided into the treatment area (9). An ozone generator (4) is also provided, ozone generated by the ozone generator (4) being guided with the steam into the treatment area (9).

Description

Hausgerät mit einem Ozongenerator  Domestic appliance with an ozone generator
Die Erfindung betrifft ein Hausgerät, insbesondere ein wasserführendes Hausgerät, beispielsweise ein Wäschebehandlungsgerät zum Waschen und/oder Trocknen von Wäsche. Speziell betrifft die Erfindung das Gebiet der Waschmaschinen, Wäschetrockner und Waschtrockner. The invention relates to a domestic appliance, in particular a water-conducting domestic appliance, for example a laundry treatment appliance for washing and / or drying laundry. Specifically, the invention relates to the field of washing machines, tumble dryers and washer dryers.
In wasserführenden Hausgeräten kann es unter anderem aufgrund der relativ hohen Luftfeuchtigkeit zur Bildung von Keimen auf Oberflächen des wasserführenden Hausgeräts kommen. Außerdem können Keime auch auf Textilien, insbesondere einer Wäsche, sein. Der Einsatz von Dampf im wasserführenden Hausgerät ermöglicht eine Keimtötung. Hierfür sind allerdings eine hohe Dampftemperatur und eine lange Einwirkzeit erforderlich. Um eine messbare Keimreduktion auf einer Wäsche bzw. auf Oberflächen zu erreichen, ist es beispielsweise erforderlich, alle Flächen auf mehr als 60°C zu erwärmen und die Temperatur von über 60°C über eine längere Zeit von beispielsweise 10 bis 20 Minuten zu halten. Hierdurch können sich Programmlaufzeiten von etwa einer Stunde ergeben. Die erforderliche Dampfmenge und Einwirkdauer führt zwangsläufig zu einem hohen Energiebedarf, denn die Erzeugung von Dampf ist aufgrund der hohen Verdampfungsenthalpie des Wassers sehr energieaufwändig. In water-bearing household appliances, it may come to surfaces of the water-bearing household appliance, among other things, due to the relatively high humidity for the formation of germs. In addition, germs can also be on textiles, especially a laundry. The use of steam in the water-bearing household appliance allows a germ killing. However, this requires a high steam temperature and a long exposure time. For example, in order to achieve measurable germ reduction on a laundry or on surfaces, it is necessary to heat all surfaces to more than 60 ° C and to maintain the temperature above 60 ° C for a longer time of, for example, 10 to 20 minutes. This may result in program durations of about one hour. The required amount of steam and exposure time inevitably leads to a high energy requirement, because the generation of steam is very energy-consuming due to the high enthalpy of enthalpy of the water.
Aus der US 5,313,81 1 A ist eine Vorrichtung zur Behandlung von gefärbten Textilien mit Ozon bekannt. Speziell betrifft die Vorrichtung die Behandlung von blau gefärbten Jeans während der Herstellung, um auf schonende Weise modische Effekte durch teilweises Entfärben zu erzielen. Im Unterschied zu einer Bearbeitung der Textilien mit Sand oder Steinen kann der modische Effekt dann ohne Beschädigung des Gewebes erfolgen, was sich günstig auf die Lebensdauer der Jeans auswirkt. From US 5,313,811A a device for the treatment of dyed textiles with ozone is known. Specifically, the device relates to the treatment of blue-dyed jeans during manufacture to delicately effect fashion through partial decolorization. In contrast to a treatment of textiles with sand or stones, the fashionable effect can then be done without damaging the fabric, which has a favorable effect on the life of the jeans.
Bei der bekannten Vorrichtung ist ein Ozongenerator vorgesehen, der Ozon erzeugt, das zu einem Venturirohr geführt wird. Flüssigkeit aus einem Gehäuse der Vorrichtung, das den Behandlungsbereich begrenzt, wird über ein Umpumpsystem aus dem Gehäuse geführt und gelangt dann wieder zurück in den Behandlungsbereich. Das Umpumpsystem führt die Flüssigkeit durch das Venturirohr, so dass das erzeugte Ozon mit der Flüssigkeit mitgenommen wird. Die Flüssigkeit und das Ozon werden anschließend noch durch eine Einrichtung des Umpumpsystems geführt, die ein Paar von Mischern aufweist, die die umgepumpte Flüssigkeit mit dem Ozon mischen. Da Ozon hauptsächlich mit dem Farbstoff der Textilien reagiert, wenn die Textilie nass ist, kann ein gezieltes Bleichen der Textilie erzielt werden, um den gewünschten optischen Effekt zu erzielen. Hierdurch können modische Effekte durch Bleichen erzielt werden, ohne das Gewebe mechanisch abzunutzen. In the known device, an ozone generator is provided which generates ozone, which is guided to a Venturi tube. Liquid from a housing of the device which delimits the treatment area is guided out of the housing via a pumping system and then passes back into the treatment area. The pumping system leads the liquid through the Venturi tube, so that the generated ozone is taken along with the liquid. The liquid and ozone are then passed through a pumping system which includes a pair of mixers which mix the circulated liquid with the ozone. Since ozone mainly with the Dye of textiles reacts when the fabric is wet, a targeted bleaching of the textile can be achieved in order to achieve the desired optical effect. As a result, fashionable effects can be achieved by bleaching, without mechanically abusing the tissue.
Aufgabe der Erfindung ist es, ein Hausgerät, insbesondere ein wasserführendes Hausgerät, zu schaffen, bei dem eine keimtötende Wirkung mit verringertem Energieverbrauch ermöglicht ist. Die Aufgabe wird durch ein Hausgerät, insbesondere ein wasserführendes Hausgerät, beispielsweise ein Wäschebehandlungsgerät zum Waschen und/oder Trocknen von Wäsche, gelöst, bei dem ein Behandlungsbereich und ein Dampfgenerator vorgesehen sind, wobei ein von dem Dampfgenerator erzeugter, auf Wasser basierender Dampf in den Behandlungsbereich führbar ist, wobei ein Ozongenerator vorgesehen ist und wobei ein von dem Ozongenerator erzeugbares Ozon mit dem Dampf in den Behandlungsbereich führbar ist. The object of the invention is to provide a domestic appliance, in particular a water-conducting domestic appliance, in which a germicidal effect with reduced energy consumption is made possible. The object is achieved by a domestic appliance, in particular a water-conducting domestic appliance, for example a laundry treatment appliance for washing and / or drying laundry, in which a treatment area and a steam generator are provided, wherein a water-based steam generated by the steam generator enters the treatment area feasible, wherein an ozone generator is provided and wherein an ozone generated by the ozone generator can be guided with the steam in the treatment area.
Durch die in den abhängigen Patentansprüchen aufgeführten Maßnahmen sind bevorzugte Weiterbildungen des erfindungsgemäßen Hausgeräts möglich. The measures listed in the dependent claims preferred developments of the household appliance according to the invention are possible.
Bevorzugt ist es, dass der Ozongenerator einerseits mit dem Dampfgenerator verbunden ist und dass der von dem Dampfgenerator erzeugte Dampf über den Ozongenerator in den Behandlungsbereich führbar ist. Andererseits kann der Ozongenerator mit dem Behandlungsbereich verbunden sein, beispielsweise über ein Verbindungsstück. Hierdurch kann der Dampf von dem Dampfgenerator über den Ozongenerator in den Behandlungsbereich geführt werden, um das im Ozongenerator erzeugte Ozon direkt mitzunehmen. Hierdurch ergibt sich ein vereinfachter und kompakter Aufbau. Vorteilhaft ist es hierbei ferner, dass der Ozongenerator eine UV-Lampe aufweist und dass der Dampf an der UV-Lampe entlanggeführt ist. Speziell kann die UV-Lampe als UVC-Lampe ausgestaltet sein, die zumindest im Wesentlichen elektromagnetische Strahlung aus einem Teilbereich der ultravioletten Strahlung, nämlich im Bereich von 100 nm bis 280 nm, erzeugt. Speziell ist es vorteilhaft, dass die UV-Lampe elektromagnetische Strahlung zumindest im Wesentlichen im Bereich um 185 nm erzeugt. Die UVC-Lampe ist in der Lage, di-Sauerstoffmoleküle zu spalten. Die entstandenen Sauerstoffradikale reagieren mit molekularem di-Sauerstoff zu Ozon. Der durch den Ozongenerator geführte Dampf wird dadurch mit Ozon angereichert. Ozon hat eine stark keimtötende Wirkung, so dass schon geringe Mengen und kurze Einwirkzeiten genügen, um die Zellwände von Mikroorganismen zu schädigen. Somit kann die keimtötende Wirkung des Dampfes durch die Zugabe von Ozon unterstützt und verbessert werden. It is preferred that the ozone generator is on the one hand connected to the steam generator and that the steam generated by the steam generator can be guided via the ozone generator into the treatment area. On the other hand, the ozone generator can be connected to the treatment area, for example via a connecting piece. In this way, the steam can be conducted from the steam generator via the ozone generator in the treatment area to take the ozone generated in the ozone generator directly. This results in a simplified and compact design. It is also advantageous here that the ozone generator has a UV lamp and that the vapor is guided along the UV lamp. Specifically, the UV lamp can be configured as a UVC lamp which generates at least substantially electromagnetic radiation from a subarea of the ultraviolet radiation, namely in the range from 100 nm to 280 nm. Specifically, it is advantageous that the UV lamp generates electromagnetic radiation at least substantially in the range around 185 nm. The UVC lamp is able to split di-oxygen molecules. The resulting oxygen radicals react with molecular di-oxygen to form ozone. The steam guided by the ozone generator is thereby enriched with ozone. Ozone has a strong germicidal effect, so that even small amounts and short exposure times are sufficient to damage the cell walls of microorganisms. Thus, the germicidal effect of the steam can be promoted and improved by the addition of ozone.
Bevorzugt ist es auch, dass eine Tür für den Behandlungsbereich vorgesehen ist, und dass die UV-Lampe so angeordnet ist, dass die Strahlung der UV-Lampe durch die Tür wahrnehmbar ist. Hierdurch kann ein Benutzer von außen überprüfen, ob die UV-Lampe funktionsfähig ist. Außerdem kann der Benutzer neben dem in den Behandlungsbereich geführten Dampf auch das bläuliche Leuchten der UV-Lampe erkennen, so dass der wahrnehmbare Effekt der Dampfanwendung unterstützt wird. Die Tür ist zumindest teilweise lichtdurchlässig ausgestaltet, wobei ein geeignetes lichtdurchlässiges Material zum Einsatz kommt, das schädliche Strahlung filtert. Speziell wird der Austritt von schädlicher ultravioletter Strahlung aus einem Bereich von 100 nm bis 280 nm verhindert. It is also preferred that a door is provided for the treatment area, and that the UV lamp is arranged so that the radiation of the UV lamp through the door is perceptible. This allows a user to check from the outside, whether the UV lamp is functional. In addition, in addition to the steam carried into the treatment area, the user can also recognize the bluish glow of the UV lamp, so that the perceptible effect of the steam application is supported. The door is at least partially translucent, using a suitable translucent material is used, which filters harmful radiation. Specifically, the escape of harmful ultraviolet radiation from a range of 100 nm to 280 nm is prevented.
Bevorzugt ist es allerdings auch, dass das Ozon von dem Ozongenerator durch eine stille Entladung aus der Luft erzeugbar ist und dass das erzeugte Ozon dem zu dem Behandlungsbereich geführten Dampf zuführbar ist. Hierdurch kann das Ozon direkt aus der Luft erzeugt werden und dem Dampfstrom zugeführt werden. However, it is also preferred that the ozone from the ozone generator can be generated by a silent discharge from the air and that the ozone generated can be supplied to the steam conducted to the treatment area. This allows the ozone to be generated directly from the air and fed to the vapor stream.
Ferner ist es bevorzugt, dass der Dampfgenerator und der Ozongenerator über ein isoliertes Leitungssystem mit dem Behandlungsbereich verbunden sind. Der Behandlungsbereich kann beispielsweise durch einen Behälter, insbesondere einen Laugenbehälter, begrenzt sein. Dadurch wird der Dampf gezielt in den Behandlungsbereich geführt. Hierdurch kann beispielsweise eine gezielte keimtötende Wrkung in Bezug auf die zu behandelnde Wäsche erzielt werden. Allerdings kann der mit Ozon angereicherte Dampf über mit dem Behandlungsbereich verbundene Komponenten geführt werden, indem eine entsprechend große Menge an Dampf erzeugt wird. Beispielsweise kann der mit Ozon angereicherte Dampf auch durch eine Einspülschale geführt werden. Furthermore, it is preferred that the steam generator and the ozone generator are connected to the treatment area via an insulated piping system. The treatment area may be limited, for example, by a container, in particular a tub. As a result, the steam is specifically guided into the treatment area. In this way, for example, a targeted germicidal effect can be achieved with respect to the laundry to be treated. However, the ozone-enriched vapor may be passed over components connected to the treatment area by generating a correspondingly large amount of vapor. For example, the ozone-enriched vapor can also be passed through a dispenser tray.
Ferner ist es bevorzugt, dass zumindest ein Behandlungsprogramm eine keimreduzierende Behandlung, insbesondere einen keimreduzierenden Behandlungsschritt, aufweist und dass der Ozongenerator während der keimreduzierenden Behandlung so angesteuert ist, dass eine Ozonkonzentration des ozonhaltigen Dampfes auch bei einer Dampftemperatur des Dampfes von weniger als 60°C eine keimreduzierende Wirkung aufweist. Durch die Anreicherung des Dampfes mit Ozon wird die keimreduzierende Wirkung des Dampfes unterstützt. Die herzustellende Dampfmenge und dessen Einwirkzeit können dadurch deutlich verringert werden. Eine durchgängige Erwärmung der Textilien und/oder Oberflächen auf mehr als 60°C ist somit nicht mehr erforderlich. Je nach Beladungsmenge des Behandlungsbereichs kann die gewünschte keimtötende Wrkung dadurch auch nach einer reduzierten Behandlungszeit erreicht werden. Beispielsweise kann durch das Ozon die Behandlungszeit von 1 Stunde auf 20 Minuten reduziert werden. Furthermore, it is preferred that at least one treatment program has a germ-reducing treatment, in particular a germ-reducing treatment step, and that the ozone generator is activated during the germ-reducing treatment in such a way that an ozone concentration of the ozone generator is controlled ozone-containing steam even at a steam temperature of the steam of less than 60 ° C has a germ-reducing effect. By enriching the steam with ozone, the germ-reducing effect of the steam is supported. The amount of steam to be produced and its exposure time can thereby be significantly reduced. A continuous heating of the textiles and / or surfaces to more than 60 ° C is therefore no longer necessary. Depending on the loading amount of the treatment area, the desired germicidal effect can be achieved even after a reduced treatment time. For example, the treatment time can be reduced from 1 hour to 20 minutes by the ozone.
In bevorzugter Weise wird der in den Behandlungsbereich geführte Dampf kurz vor seinem Eintritt in den Behandlungsbereich mit dem Ozon angereichert. Hierdurch ergibt sich in Bezug auf die erzeugte Ozonmenge eine besonders günstige Wrksamkeit für die Keimtötung. Preferably, the steam introduced into the treatment area is enriched with the ozone just before it enters the treatment area. This results in relation to the amount of ozone produced a particularly favorable efficacy for the germ killing.
Bei der Erzeugung von Ozon durch den Ozongenerator ist die erzeugbare Ozonmenge so begrenzt, dass eine Bleichwirkung des ozonhaltigen Dampfes in dem Behandlungsbereich verhindert ist. Bevorzugte Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung anhand der Figuren der beigefügten Zeichnung, in denen sich entsprechende Elemente mit übereinstimmenden Bezugszeichen versehen sind, näher erläutert. Es zeigen: In the generation of ozone by the ozone generator, the producible amount of ozone is limited so as to prevent a bleaching effect of the ozone-containing vapor in the treatment area. Preferred embodiments of the invention are explained in more detail in the following description with reference to the figures of the accompanying drawing, in which corresponding elements are provided with corresponding reference numerals. Show it:
Fig. 1 ein wasserführendes Hausgerät in einer schematischen Darstellung entsprechend einem Ausführungsbeispiel und Fig. 1 shows a water-conducting domestic appliance in a schematic representation according to an embodiment and
Fig. 2 eine schematische Darstellung eines Innenraums des wasserführenden Fig. 2 is a schematic representation of an interior of the water-bearing
Hausgeräts des Ausführungsbeispiels. Fig. 1 zeigt ein wasserführendes Hausgerät 1 in einer schematischen Darstellung entsprechend einem Ausführungsbeispiel. Das wasserführende Hausgerät 1 kann insbesondere als Wäschebehandlungsgerät ausgestaltet sein und zum Waschen und/oder Trocknen von Wäsche dienen. Speziell kann das wasserführende Hausgerät 1 als Waschmaschine, Waschtrockner oder Wäschetrockner ausgestaltet sein. Das wasserführende Hausgerät 1 eignet sich allerdings auch für andere Anwendungsfälle. Das Hausgerät 1 weist einen Dampfgenerator 2 auf, der zur Erzeugung von auf Wasser basierendem Dampf dient. Der Dampfgenerator 2 kann insbesondere Wasser in Wasserdampf umwandeln. Der von dem Dampfgenerator 2 erzeugte Dampf wird, wie es durch einen Pfeil 3 veranschaulicht ist, zu einem Ozongenerator 4 geführt. Der Ozongenerator 4 weist einen Eingang 5 auf, der mit einem Ausgang 6 des Dampfgenerators 2 verbunden ist. Außerdem weist der Ozongenerator 4 einen Ausgang 7 auf. Der vom Dampfgenerator 2 erzeugte Dampf wird über den Eingang 5 in einen Innenraum 8 des Ozongenerators 4 geführt. Der Dampf strömt durch den zylinderförmigen Innenraum 8 zu dem Ausgang 7. Von dem Ausgang 7 wird der Dampf in einen Behandlungsbereich 9 weitergeleitet, wie es durch den Pfeil 10 veranschaulicht ist. In diesem Ausführungsbeispiel ist der Ausgang 7 beispielsweise mit einem Laugenbehälter oder einem anderen Behälter 11 (Fig. 2) verbunden. Der Behälter 1 1 begrenzt den Behandlungsbereich 9. Domestic appliance of the embodiment. Fig. 1 shows a water-conducting domestic appliance 1 in a schematic representation according to an embodiment. The water-bearing domestic appliance 1 can in particular be configured as a laundry treatment appliance and serve for washing and / or drying laundry. Specifically, the water-bearing domestic appliance 1 can be configured as a washing machine, washer-dryer or tumble dryer. However, the water-bearing domestic appliance 1 is also suitable for other applications. The domestic appliance 1 has a steam generator 2, which serves to generate water-based steam. The steam generator 2 can in particular convert water into steam. The steam generated by the steam generator 2 is guided to an ozone generator 4 as illustrated by an arrow 3. The ozone generator 4 has an input 5 which is connected to an output 6 of the steam generator 2. In addition, the ozone generator 4 has an output 7. The steam generated by the steam generator 2 is guided via the input 5 into an interior 8 of the ozone generator 4. The steam flows through the cylindrical interior 8 to the outlet 7. From the outlet 7, the steam is passed on to a treatment area 9, as illustrated by the arrow 10. In this embodiment, the outlet 7 is connected, for example, to a tub or other container 11 (Figure 2). The container 1 1 limits the treatment area. 9
Der Ozongenerator 4 dient zum Erzeugen von Ozon. Hierfür ist in diesem Ausführungsbeispiel eine UV-Lampe 12 in dem Innenraum 8 des Ozongenerators 4 angeordnet. Die UV-Lampe 12 ist vorzugsweise als UVC-Lampe 12 ausgestaltet, die eine elektromagnetische Strahlung im Bereich von etwa 100 nm bis etwa 280 nm erzeugt. Die Wellenlänge der von der UV-Lampe 12 erzeugten elektromagnetischen Strahlung liegt hierbei vorzugsweise im Bereich von etwa 185 nm. Der durch den Innenraum 8 strömende Dampf wird hierbei entlang der stabförmig ausgestalteten UV-Lampe 12 geführt. Die Energie der UV-Lampe 12 ist in der Lage, di-Sauerstoffmoleküle zu spalten. Die entstehenden Sauerstoffradikale reagieren mit molekularem di-Sauerstoff zu Ozon. Hierdurch wird der durch den Innenraum 8 geführte Dampf mit Ozon angereichert. The ozone generator 4 serves to generate ozone. For this purpose, a UV lamp 12 is arranged in the interior 8 of the ozone generator 4 in this embodiment. The UV lamp 12 is preferably configured as a UVC lamp 12, which generates electromagnetic radiation in the range from about 100 nm to about 280 nm. The wavelength of the electromagnetic radiation generated by the UV lamp 12 in this case is preferably in the range of about 185 nm. The steam flowing through the interior space 8 is guided along the rod-shaped UV lamp 12. The energy of the UV lamp 12 is able to split di-oxygen molecules. The resulting oxygen radicals react with molecular di-oxygen to form ozone. As a result, the guided through the inner space 8 steam is enriched with ozone.
Der mit Ozon angereicherte Dampf gelangt somit in den Behandlungsbereich 9. Ozon hat eine stark keimtötende Wrkung. Hierbei genügen schon relativ geringe Mengen und kurze Einwirkzeiten, um die Zellwände von Mikroorganismen zu schädigen. Somit können Oberflächen, die insbesondere im Behandlungsbereich 9 vorgesehen sind, behandelt werden. Ferner kann auch Wäsche oder dergleichen im Behandlungsbereich 9 mittels des mit Ozon versetzten Dampfes behandelt werden. The ozone-enriched vapor thus enters the treatment area 9. Ozone has a strong germicidal effect. In this case, even relatively small amounts and short exposure times are sufficient to damage the cell walls of microorganisms. Thus, surfaces that are provided in particular in the treatment area 9 can be treated. Furthermore, laundry or the like can also be treated in the treatment area 9 by means of the ozone-added steam.
Fig. 2 zeigt das wasserführende Hausgerät 1 des Ausführungsbeispiels, wobei schematisch ein Innenraum dargestellt ist. Das Hausgerät 1 weist ein Gehäuse 15 auf, in dem der Behälter 11 aufgehängt ist. Der Behälter 11 umschließt den Behandlungsbereich 9. Speziell kann der Behälter 1 1 als Laugenbehälter 11 ausgestaltet sein. In einem Innenraum 16 des Gehäuses 15 ist neben dem Behälter 11 ein isoliertes Leitungssystem 17 angeordnet, das den Dampfgenerator 2 und den Ozongenerator 4 umfasst. Hierbei ist der Dampfgenerator 2 über ein Rohrstück 18 mit dem Ozongenerator 4 verbunden. Der Ozongenerator 4 ist über ein flexibles Rohrstück 19 mit dem Behälter 1 1 verbunden. Das Rohrstück 19 ist vorzugsweise als relativ kurzes Rohrstück 19 ausgestaltet. Gegebenenfalls kann das Rohrstück 19 auch entfallen. Das Hausgerät 1 weist ferner eine Tür 20 auf, die teilweise aus einem Glas gebildet ist. Dadurch ist die Tür 20 als transparente Tür 20 ausgestaltet. Fig. 2 shows the water-bearing domestic appliance 1 of the embodiment, wherein an interior is shown schematically. The domestic appliance 1 has a housing 15, in the container 11 is suspended. The container 11 surrounds the treatment area 9. Specifically, the container 1 1 may be configured as a tub 11. In an inner space 16 of the housing 15, an insulated line system 17 is arranged next to the container 11, which comprises the steam generator 2 and the ozone generator 4. Here, the steam generator 2 is connected via a pipe section 18 with the ozone generator 4. The ozone generator 4 is connected via a flexible pipe section 19 with the container 1 1. The pipe section 19 is preferably designed as a relatively short pipe section 19. Optionally, the pipe section 19 can also be omitted. The domestic appliance 1 also has a door 20, which is partially formed of a glass. As a result, the door 20 is designed as a transparent door 20.
Wenn die UV-Lampe 12 angeschaltet ist, dann gelangt ein Teil der Strahlung über das kurze Rohrstück 19 in den Behandlungsbereich 9, wie es durch die Pfeile 21 veranschaulicht ist. Der ebenfalls über das Rohrstück 19 austretende Dampf, der mit Ozon angereichert ist, ist durch das bläuliche Leuchten gut sichtbar. Außerdem wird auch der Innenraum des Behälters 11 , d.h. der Behandlungsbereich 9, bläulich erleuchtet. Durch die transparente Tür 20 kann ein Benutzer somit den Dampfaustritt und das bläuliche Leuchten der UV-Lampe 12 beobachten. Der wahrnehmbare Effekt der Dampfanwendung wird dadurch unterstützt. Hierbei verhindert das in der Tür 20 verwendete Glas einen Austritt schädlicher UV-Strahlung, insbesondere UVC-Strahlung. When the UV lamp 12 is turned on, a portion of the radiation passes through the short pipe section 19 into the treatment area 9, as illustrated by the arrows 21. The likewise exiting via the pipe section 19 steam, which is enriched with ozone, is clearly visible through the bluish glow. In addition, the interior of the container 11, i. the treatment area 9, bluish light. Through the transparent door 20, a user can thus observe the steam outlet and the bluish glow of the UV lamp 12. The perceptible effect of the steam application is thereby supported. In this case, the glass used in the door 20 prevents escape of harmful UV radiation, in particular UVC radiation.
Im Behandlungsbereich 9 befindet sich während eines Behandlungsprogramms Wäsche oder dergleichen, die beispielsweise gewaschen und/oder getrocknet wird. Hierbei können sich auf dem Gewebe der Wäsche Keime befinden. Außerdem kann aufgrund der feuchten Atmosphäre innerhalb des Behandlungsbereichs 9 auch eine Innenseite 22 des Behälters 11 mit Keimen besiedelt sein. Durch das Einleiten des mit Ozon versetzten Dampfes während eines Behandlungsschritts des Behandlungsprogramms wird eine keimreduzierende Behandlung der Wäsche sowie der Innenseite 22 des Behälters 1 1 erreicht. Da die keimreduzierende Wirkung des Dampfes durch das Ozon wesentlich unterstützt ist, können die Temperatur und die Einwirkzeit reduziert werden. Beispielsweise ist eine durchgängige Erwärmung der Textilien und/oder der Oberflächen, insbesondere der Innenseite 22, auf mehr als 60°C nicht erforderlich. Aufgrund der geringeren erforderlichen Temperatur und der reduzierten Einwirkzeit kommt es zu einer erheblichen Verringerung der für die keimreduzierende Behandlung erforderlichen Energie. Beispielsweise kann eine keimreduzierende Behandlung bei einer Temperatur von weniger als 60°C mit einer Behandlungszeit von etwa 20 Minuten durchgeführt werden. Durch den mit Ozon versetzten Wasserdampf wird eine keimreduzierende Wirkung erzielt. Hierbei ist die von dem Ozongenerator 4 erzeugbare Ozonmenge so begrenzt, dass eine Bleichwirkung des ozonhaltigen Dampfes in dem Behandlungsbereich 9 verhindert ist. In the treatment area 9 is during a treatment program laundry or the like, which is washed and / or dried, for example. This may be germs on the fabric of the laundry. In addition, due to the moist atmosphere within the treatment area 9, an inner side 22 of the container 11 may also be populated with germs. By introducing the ozone-added steam during a treatment step of the treatment program, a germ-reducing treatment of the laundry and the inside 22 of the container 1 1 is achieved. Since the germ-reducing effect of the steam is substantially supported by the ozone, the temperature and the exposure time can be reduced. For example, a continuous heating of the textiles and / or the surfaces, in particular the inside 22, to more than 60 ° C is not required. Due to the lower required temperature and the reduced exposure time, there is a significant reduction required for the germ-reducing treatment Energy. For example, a germ reducing treatment may be performed at a temperature of less than 60 ° C with a treatment time of about 20 minutes. Due to the ozone added water vapor, a germ-reducing effect is achieved. Here, the ozone amount that can be generated by the ozone generator 4 is limited so that a bleaching effect of the ozone-containing steam in the treatment area 9 is prevented.
Der Ozongenerator 4 kann auch auf andere Weise Ozon erzeugen. Beispielsweise kann Ozon auch mittels einer stillen Entladung direkt aus der Luft erzeugt werden und dem Dampfstrom von dem Dampfgenerator 2 zu dem Behandlungsbereich 9 zugeführt werden. The ozone generator 4 can also generate ozone in other ways. For example, ozone can also be generated directly from the air by means of a silent discharge and fed to the steam flow from the steam generator 2 to the treatment area 9.
Die Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt. The invention is not limited to the described embodiments.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Wasserführendes Hausgerät 1 water-carrying household appliance
2 Dampfgenerator  2 steam generator
3 Pfeil  3 arrow
4 Ozongenerator  4 ozone generator
5 Eingang  5 entrance
6 Ausgang  6 output
7 Ausgang  7 output
8 Innenraum  8 interior
9 Behandlungsbereich  9 treatment area
10 Pfeil  10 arrow
11 Behälter  11 containers
12 UV-Lampe  12 UV lamp
15 Gehäuse 15 housing
16 Innenraum  16 interior
17 isoliertes Leitungssystem  17 insulated pipe system
18, 19 Rohrstück 18, 19 piece of pipe
20 Tür  20 door
21 Pfeile 21 arrows
22 Innenseite  22 inside

Claims

PATENTANSPRÜCHE
1. Hausgerät (1), insbesondere ein wasserführendes Hausgerät, beispielsweise ein Wäschebehandlungsgerät zum Waschen und/oder Trocknen von Wäsche, mit einem Behandlungsbereich (9) und einem Dampfgenerator (2), wobei ein von dem Dampfgenerator (2) erzeugter Dampf in den Behandlungsbereich (9) führbar ist, wobei ein Ozongenerator (4) vorgesehen ist und wobei ein von dem Ozongenerator (4) erzeugbares Ozon mit dem Dampf in den Behandlungsbereich (9) führbar ist. 1. domestic appliance (1), in particular a water-conducting domestic appliance, for example, a laundry treatment appliance for washing and / or drying laundry, with a treatment area (9) and a steam generator (2), wherein one of the steam generator (2) generated steam in the treatment area (9) is feasible, wherein an ozone generator (4) is provided and wherein an ozone generated by the ozone generator (4) can be guided with the steam in the treatment area (9).
2. Hausgerät nach Anspruch 1 , dadurch gekennzeichnet, dass der Ozongenerator (4) einerseits mit dem Dampfgenerator (2) verbunden ist und dass der von dem Dampfgenerator (2) erzeugte Dampf über den Ozongenerator (4) in den Behandlungsbereich (9) führbar ist. 2. Domestic appliance according to claim 1, characterized in that the ozone generator (4) on the one hand with the steam generator (2) is connected and that of the steam generator (2) generated steam via the ozone generator (4) in the treatment area (9) is feasible ,
3. Hausgerät nach Anspruch 2, dadurch gekennzeichnet, dass der Ozongenerator (4) eine UV-Lampe (12) aufweist und dass der Dampf an der UV-Lampe (12) entlanggeführt ist. 3. Domestic appliance according to claim 2, characterized in that the ozone generator (4) has a UV lamp (12) and that the vapor is guided along the UV lamp (12).
4. Hausgerät nach Anspruch 3, dadurch gekennzeichnet, dass die UV-Lampe (12) als UVC-Lampe (12) ausgestaltet ist und/oder dass die UV-Lampe (12) elektromagnetische Strahlung aussendet, die zumindest im Wesentlichen in einem Bereich um 185 nm liegt. 4. Domestic appliance according to claim 3, characterized in that the UV lamp (12) is designed as a UVC lamp (12) and / or that the UV lamp (12) emits electromagnetic radiation which is at least substantially in an area around 185 nm.
5. Hausgerät nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass eine Tür (20) für den Behandlungsbereich (9) vorgesehen ist und dass die UV-Lampe (12) so angeordnet ist, dass die Strahlung der UV-Lampe (12) durch die Tür (20) wahrnehmbar ist. 5. Domestic appliance according to claim 3 or 4, characterized in that a door (20) for the treatment area (9) is provided and that the UV lamp (12) is arranged so that the radiation of the UV lamp (12) through the door (20) is perceptible.
6. Hausgerät nach Anspruch 1 , dadurch gekennzeichnet, dass das Ozon von dem Ozongenerator (4) durch eine stille Entladung aus der Luft erzeugbar ist und dass das erzeugte Ozon dem zu dem Behandlungsbereich (9) geführten Dampf zuführbar ist. 6. Domestic appliance according to claim 1, characterized in that the ozone from the ozone generator (4) by a silent discharge from the air can be generated and that the generated ozone to the treatment area (9) guided steam is supplied.
7. Hausgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Dampfgenerator (2) und der Ozongenerator (4) über ein isoliertes Leitungssystem (17) mit dem Behandlungsbereich (9) verbunden sind. 7. Domestic appliance according to one of claims 1 to 6, characterized in that the steam generator (2) and the ozone generator (4) via an insulated line system (17) are connected to the treatment area (9).
8. Hausgerät nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zumindest ein Behandlungsprogramm eine keimreduzierende Behandlung umfasst und dass der Ozongenerator (4) während der keimreduzierenden Behandlung so angesteuert ist, dass eine Ozonkonzentration des ozonhaltigen Dampfes auch bei einer Dampftemperatur des Dampfes von weniger als 60°C eine keimreduzierende Wirkung aufweist. 8. domestic appliance according to one of claims 1 to 7, characterized in that at least one treatment program comprises a germ-reducing treatment and that the ozone generator (4) is controlled during the germ-reducing treatment so that an ozone concentration of the ozone-containing vapor at a steam temperature of the steam less than 60 ° C has a germ-reducing effect.
9. Hausgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der in den Behandlungsbereich (9) führbare Dampf kurz vor seinem Eintritt in den Behandlungsbereich (9) mit Ozon anreicherbar ist. 9. domestic appliance according to one of claims 1 to 8, characterized in that in the treatment area (9) feasible steam just before its entry into the treatment area (9) is enriched with ozone.
10. Hausgerät nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass eine von dem Ozongenerator (4) erzeugbare Ozonmenge so begrenzt ist, dass eine Bleichwirkung des ozonhaltigen Dampfes in dem Behandlungsbereich (9) verhindert ist. 10. domestic appliance according to one of claims 1 to 9, characterized in that one of the ozone generator (4) producible amount of ozone is limited so that a bleaching effect of the ozone-containing vapor in the treatment area (9) is prevented.
EP11733862.4A 2010-07-29 2011-07-19 Household appliance comprising an ozone generator Active EP2598682B1 (en)

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EA201291430A1 (en) 2013-07-30
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CN103038409B (en) 2018-11-16
PL2598682T3 (en) 2016-02-29
CN103038409A (en) 2013-04-10
EA021957B1 (en) 2015-10-30

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