EP2267209A1 - Steam production device for a laundry treatment machine and laundry treatment machine - Google Patents

Steam production device for a laundry treatment machine and laundry treatment machine Download PDF

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Publication number
EP2267209A1
EP2267209A1 EP09008296A EP09008296A EP2267209A1 EP 2267209 A1 EP2267209 A1 EP 2267209A1 EP 09008296 A EP09008296 A EP 09008296A EP 09008296 A EP09008296 A EP 09008296A EP 2267209 A1 EP2267209 A1 EP 2267209A1
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EP
European Patent Office
Prior art keywords
steam
generating device
steam generating
nozzle
chamber
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
EP09008296A
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German (de)
French (fr)
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EP2267209B1 (en
Inventor
Ulrich Dreier
Michael Finke
Nils-Sebastian Föllmer
Stefan Herzel
Friedrich-Wilhelm Kramme
Hartmut Linnemann
Ulrich Martin
Robert Müther
Dirk Sieding
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Miele und Cie KG
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Miele und Cie KG
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to PL09008296T priority Critical patent/PL2267209T3/en
Priority to ES09008296T priority patent/ES2377039T3/en
Priority to EP09008296A priority patent/EP2267209B1/en
Priority to AT09008296T priority patent/ATE541980T1/en
Publication of EP2267209A1 publication Critical patent/EP2267209A1/en
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Publication of EP2267209B1 publication Critical patent/EP2267209B1/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
    • 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/203—Laundry conditioning arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K5/00—Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type
    • F01K5/02—Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type used in regenerative installation

Definitions

  • the invention relates to a steam generating device for the treatment of laundry with steam in a laundry treatment machine such as washing machine, washer dryer, comprising a radiator and a heated by the radiator chamber to provide the boiling process, with an inlet for water and an outlet for steam.
  • a front loadable washing machine with a tub for holding washing liquid and the laundry to be treated.
  • the washing machine further comprises a steam generating device with a radiator, which can receive the water to be evaporated, wherein the radiator is provided for heating and evaporating the water.
  • the device further comprises a mass block for heat storage through which a water-carrying pipe is guided.
  • the heater or the mass block is at a predetermined temperature, for example at least 100 ° C, whereby the guided through the conduit water is heated and evaporated in the manner of a water heater.
  • the steam thus generated is conducted from the outlet port of the block by means of a conduit to an injection nozzle, so that the steam can be introduced in the predetermined direction in the drum.
  • the washing machine disclosed herein includes a steam generating means for treating the laundry with steam.
  • the steam generating device comprises a container in which a predetermined Amount of water is admitted. The water is heated with a radiator until it evaporates. Via a line and a nozzle, the steam is fed into the treatment room or into the interior of the drum.
  • the inflow is directly connected to the water supply and is controlled by a valve. Also, the steam exit is controlled via an outlet valve to provide sufficient vapor pressure within the steam generator. When the exhaust valve is opened, a large amount of steam flows out due to the high pressure, which may entrain droplets from the tank.
  • the essential advantage of the steam generating device according to the invention is that in a simple manner, the formation of droplets by condensing steam in a steam generating device is largely avoided. Furthermore, it is ensured that the steam leaves the steam generating device very hot, so that condensation does not occur in a downstream line or nozzle.
  • a second heated chamber which is connected downstream of the heated chamber for generating steam.
  • the steam already generated is further heated or maintained at least at a temperature above the boiling point of water, so that it can then pass through the outlet opening via lines to the treatment room for the laundry.
  • the chambers are separated by means of a partition, which contains at least one opening for connection.
  • the inlet opening is provided with a nozzle which is designed to atomize the water flowing into the steam generating device.
  • a nozzle which is designed to atomize the water flowing into the steam generating device.
  • the walls or the bottom of the heated chamber are not cooled as much as it occurs in an inflowing water surge.
  • Sputtering results in a distribution of droplets, resulting in good and rapid evaporation as the droplets reach the heated wall. Due to the pressure rise within the heated chamber, caused by the boiling process, the steam thus generated passes into the second chamber, in which it is further heated and guided to the outlet opening.
  • the nozzle consists of an elastic, heat-resistant material, wherein it can change its opening cross-section by means of the water flowing through the nozzle.
  • nozzle lime deposits Due to the provided mobility of the nozzle lime deposits are blasted or they are prevented from arising. Also, a valve function is achieved so that the nozzle is opened during the water supply and as soon as the water supply is stopped, the cross-section narrows so that no or almost no steam penetrates through the nozzle opening in the direction of the pump. It is expedient to use as a material a silicone material which has both properties and largely or permanently retains its elastic properties during the entire life cycle of a laundry treatment machine.
  • the nozzle For the dimensioning of the nozzle, it is expedient that it has a cross section which is 10 to 40 times smaller than the cross section of the outlet opening for the steam. This always ensures that the steam generated does not penetrate back through the inlet opening and reliably out through the outlet opening.
  • the second chamber is provided with walls for forming a labyrinth-like channel.
  • At least one bottom-elevation elevation is mounted in the channel. This survey prevents limescale deposits or even droplets on the ground from becoming entrained.
  • the heated chamber for the boiling process comprises at least one baffle wall, which extends transversely to the inflow direction of the inlet opening.
  • the heated chamber for the boiling process comprises a plurality of peg-shaped elevations, which are adapted to distribute the heat within the chamber at least almost evenly. An additional turbulence is achieved by these peg-shaped elevations.
  • the steam generating device comprises a metal block, in which the chambers are formed and the outside provides the receptacle for the radiator, wherein the chambers formed in the metal block are closed by a lid, wherein the metal block is adapted to the heat generated by the radiator to store and / or distribute.
  • the radiator is designed as a multi-curved tubular heater, wherein the receptacle is formed in the metal block as a formed on the underside of the metal block, the curvature of the tubular heater corresponding groove. This provides a good heat transfer from the tubular heater to the metal block.
  • the metal block of an aluminum block with a weight of 300 to 800 g and to provide the radiator with a heating power of about 0.5 to 1.5 KW.
  • the sufficient amount of steam can be reliably generated without overloading the electrical connections in the normal household.
  • the invention further relates to a laundry treating machine, such as washing machine, washer-dryer or dryer, comprising a housing, a substantially cylindrical container arranged in the housing for receiving the laundry to be treated, a steam generating device as described above, a nozzle for introducing steam into the interior the container, wherein the water to the inlet opening of the steam generating means is conveyed by means of a pump, and a control device which is adapted to control the pump and the radiator depending on a program sequence.
  • a laundry treating machine such as washing machine, washer-dryer or dryer, comprising a housing, a substantially cylindrical container arranged in the housing for receiving the laundry to be treated, a steam generating device as described above, a nozzle for introducing steam into the interior the container, wherein the water to the inlet opening of the steam generating means is conveyed by means of a pump, and a control device which is adapted to control the pump and the radiator depending on a program sequence.
  • the laundry treatment machine is designed as a front-loading laundry treating machine, comprising a substantially circular housing opening closable by a door, and a substantially circular container opening, wherein the nozzle for introducing the steam is arranged in the cylindrical container in the upper edge region of the container opening.
  • the arrangement of the nozzle to the treatment room is particularly easy to arrange in the region of the opening edge, wherein in a transparent door, the steam treatment can be very well observed from the outside.
  • Fig. 1 is a purely schematic representation of a laundry treatment machine 1, here a washing machine, shown with a tub 2.
  • the position and direction information refer to the operational installation position of the laundry treatment machine.
  • a rotatably mounted and driven by an electric motor 13 drum 3 is arranged, which moves the washing 8 located in the tub 2 and in the drum 3.
  • the drum 3 is made in the present embodiment of stainless steel and provided with a plurality of openings for the flooding.
  • the washing liquid 7 or water is introduced, which is / s needed for cleaning or treating the laundry 8.
  • a radiator (not shown) is arranged in the lower region of the tub 2.
  • an inlet valve 15 is sketched, which controls the entry of the water from the supply network.
  • the water is passed through the connecting pipe 14 in the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2.
  • the laundry treating machine 1 has a device 12 for generating steam, which is injected via a line 16 and a nozzle 17 connected thereto in the interior of the tub 2 and in the interior of the drum 3.
  • the nozzle 17 is in the upper region of the gasket 6, which provides the connection between the opening 9 in the tub 2 and the closable by the door 5 opening 10 in the housing 4, attached.
  • the laundry treatment machine 1 For conveying the water 27 into the steam generating device 12, the laundry treatment machine 1 comprises a pump 21, which is adapted to convey the water from the tank 22 to the inlet opening 18 of the steam generating device 12.
  • the tank 22 is filled via the controllable inlet valve 15.
  • a free flow path 11a is arranged between the inlet valve 15 and the tank 22 in the region of the induction box 11.
  • a line 16 is connected, via which the steam is passed to the nozzle 17.
  • the nozzle 17 is in the upper area at the edge of the opening 9 in the treatment room, here in the region of the sealing sleeve 6, with the nozzle 17 pointing towards the interior of the tub 2, so that a good steam spraying of the laundry 8 located in the tub 2 or in the drum 3 is provided.
  • a controller 29 controls operations for executing a laundry treatment program or program and performing steam generation, particularly, driving the inlet valve 15 of the heater 26 and the pump 21.
  • the steam generator 12 has one Alublock 26a, which cooperates as a heat-storing mass with the radiator 26. The increased heat requirement is particularly necessary when an explosive vapor cloud is to be generated.
  • the inlet opening 18 is provided with a nozzle 24 which atomises the incoming water so that very even evaporation of the small droplets on the hot surface of the aluminum block 26a is achieved. Further, the nozzle 24 is configured to prevent the steam generated in the steam generating device 12 from flowing back out of the opening 18 via the pump 21 into the tank 22. Furthermore, the nozzle 24 is made of heat-insulating material to avoid calcifications at the water inlet, since the inflowing water is not preheated by an undesirable heat transfer from the aluminum block 26 to the nozzle 24.
  • a dryer with a rotatable drum 3 can be used, which contains no tub 2 and no sealing sleeve 6.
  • the nozzle 17 is arranged in the edge region of the housing opening, so that the steam can be injected into the interior of the drum 3.
  • Fig. 2 shows the metal block 26a with lid 26b and radiator 16 of the steam generating device 12 according to the invention in an exploded view.
  • the metal block 26a two chambers are formed or arranged, a first, heatable chamber 20a for generating steam and a second chamber 20b, which is connected downstream of the first chamber 20a.
  • the inlet opening 18 is provided for the supplied water.
  • at least one baffle 28 is provided, which causes a deflection or turbulence of the water supplied.
  • the first chamber has a total of two adjacent baffles 28.
  • the second chamber 20b is connected downstream of the first chamber and formed by means of additional walls 32 to a labyrinth-like channel 31. This second chamber 20b is also set up so that it can be heated by means of the heating element 26.
  • the radiator 26 is formed as a multiple S-shaped bent tubular heater, which in a corresponding channel-shaped or channel-shaped receptacle on the underside of the metal block 26a, based on the operating position of the steam generating device 12, is received or attached.
  • the heater 26 is hereby shaped so that it extends both below the first chamber 20a for generating steam and below the second chamber 20b for steam heating and thus can heat both chambers simultaneously.
  • the inlet opening is provided with a nozzle 24, which causes a sputtering of the incoming water.
  • the heated steam outlet 19 is disposed in a side wall 34b of the second chamber 20b.
  • Fig. 3 shows an embodiment of the metal block 26a, in which the first chamber 20a is provided with peg-shaped projections 30 for improved heat distribution and turbulence of the atomized water.
  • the downstream second chamber 20b is arranged oblong transversely to the inlet direction of the inlet water, without a labyrinth.
  • Fig. 4 shows an embodiment in which the first chamber 20a is provided with peg-shaped elevations 30 and baffles 28.
  • the baffles 28 are curved, so that the incoming water or the water dust is divided into different main streams and distributed better within the first chamber 20a.
  • the second chamber 20b is formed as a labyrinthine channel 31.
  • the inlet opening 18 and the outlet opening 19 are each provided on the outside with a nozzle 18a, 19a, which provides the connection of a hose or a conduit.
  • the metal block 26a is provided on the outside with a indentation 35, which serves for improved conditioning or recording of the radiator 26.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

The device has a chamber (20a) heated by a heating body (26) for provision of a boiling process. An inlet opening (18) is provided for water, and an outlet opening (19) is provided for steam. Another chamber (20b) is provided downstream to the former chamber for heating and/or maintaining temperature of the steam. The inlet opening is provided with a nozzle (24) of silicon material for atomizing water flowing into the device. The nozzle is made of elastic, heat-resistant material. A cross section of an opening of the nozzle is changed by the water flowing through the nozzle. An independent claim is also included for a laundry treatment machine comprising a steam generation device and a container.

Description

Die Erfindung betrifft eine Dampferzeugungseinrichtung zur Behandlung von Wäsche mit Dampf in einer Wäschebehandlungsmaschine wie Waschmaschine, Waschtrockner oder Trockner, umfassend einen Heizkörper und eine mittels des Heizkörpers beheizte Kammer zur Bereitstellung des Siedevorganges, mit einer Eintrittsöffnung für Wasser und einer Austrittsöffnung für Dampf.The invention relates to a steam generating device for the treatment of laundry with steam in a laundry treatment machine such as washing machine, washer dryer, comprising a radiator and a heated by the radiator chamber to provide the boiling process, with an inlet for water and an outlet for steam.

Zur verbesserten Wäschebehandlung, insbesondere zur Nachbehandlung nach dem Waschen, ist es zur Beseitigung von Knitter vorteilhaft, die Wäsche in der Waschmaschine mit Dampf zu behandeln. So sind bereits verschiedene Verfahren und Maschinen bekannt, bei denen die Wäsche mit Dampf behandelt werden kann. Eine Beaufschlagung mit Dampf ist auch für eine Auffrischung von Textilien oder Wäsche geeignet.For improved laundry treatment, especially for post-treatment after washing, it is advantageous to eliminate wrinkles to treat the laundry in the washing machine with steam. Thus, various methods and machines are already known in which the laundry can be treated with steam. Steaming is also suitable for refreshing textiles or linen.

Aus der EP 1 655 408 A1 ist eine frontbeschickbare Waschmaschine mit einem Laugenbehälter zur Aufnahme von Waschflüssigkeit und der zu behandelnden Wäsche bekannt. Die Waschmaschine umfasst ferner eine Dampferzeugungseinrichtung mit einem Heizkörper, die das zu verdampfende Wasser aufnehmen kann, wobei der Heizkörper zum Erhitzen und Verdampfen des Wassers vorgesehen ist. Die Einrichtung umfasst ferner einen Masseblock zur Wärmespeicherung, durch den eine wasserführende Leitung geführt ist. Zur Erzeugung des Dampfes wird der Heizkörper bzw. der Masseblock auf eine vorbestimmte Temperatur, beispielsweise zumindest 100 °C, wodurch das durch die Leitung geführte Wasser in der Art eines Durchlauferhitzers erhitzt und verdampft wird. Der so erzeugte Dampf wird von der Auslassöffnung des Blocks mittels einer Leitung zu einer Einspritzdüse geleitet, so dass der Dampf in die vorbestimmte Richtung in die Trommel eingelassen werden kann. Hierbei ist es nachteilig, dass der Wasserzulauf exakt geregelt werden muss, damit keine Tröpfchen entstehen, wenn zu viel Wasser durch den Block geführt wird. Ferner ist bei der bekannten Dampferzeugungseinrichtung eine hohe Heizleistung und ein großer Hitzebedarf an der durch den Block geführten Leitung notwendig, um während des Wasserdurchlaufs Dampf zu erzeugen.From the EP 1 655 408 A1 is known a front loadable washing machine with a tub for holding washing liquid and the laundry to be treated. The washing machine further comprises a steam generating device with a radiator, which can receive the water to be evaporated, wherein the radiator is provided for heating and evaporating the water. The device further comprises a mass block for heat storage through which a water-carrying pipe is guided. To generate the steam, the heater or the mass block is at a predetermined temperature, for example at least 100 ° C, whereby the guided through the conduit water is heated and evaporated in the manner of a water heater. The steam thus generated is conducted from the outlet port of the block by means of a conduit to an injection nozzle, so that the steam can be introduced in the predetermined direction in the drum. It is disadvantageous that the water supply must be controlled exactly so that no droplets arise when too much water is passed through the block. Furthermore, in the known steam generating device, a high heating power and a large heat demand on the guided through the block line is necessary to generate steam during the water flow.

Aus der EP 1 464 751 A1 ist eine Waschmaschine mit einem Laugenbehälter zur Aufnahme von Waschflüssigkeit und der zu behandelnden Wäsche bekannt. Die hier offenbarte Waschmaschine umfasst eine Dampferzeugungseinrichtung, um die Wäsche mit Dampf zu behandeln. Die Dampferzeugungseinrichtung umfasst einen Behälter, in dem eine vorbestimmte Menge Wasser eingelassen wird. Das Wasser wird mit einem Heizkörper erhitzt, bis es verdampft. Über eine Leitung und eine Düse wird der Dampf in den Behandlungsraum bzw. in das Innere der Trommel geführt. Der Zufluss ist direkt mit der Wasserversorgung verbunden und wird über ein Ventil gesteuert. Auch der Dampfaustritt wird über ein Auslassventil gesteuert, um einen ausreichenden Dampfdruck innerhalb der Dampferzeugungseinrichtung bereitzustellen. Beim Öffnen des Auslassventils strömt aufgrund des hohen Drucks ein starker Dampfstoß aus, wodurch Tröpfchen aus dem Behälter mitgerissen werden können.From the EP 1 464 751 A1 is a washing machine with a tub for holding washing liquid and the laundry to be treated known. The washing machine disclosed herein includes a steam generating means for treating the laundry with steam. The steam generating device comprises a container in which a predetermined Amount of water is admitted. The water is heated with a radiator until it evaporates. Via a line and a nozzle, the steam is fed into the treatment room or into the interior of the drum. The inflow is directly connected to the water supply and is controlled by a valve. Also, the steam exit is controlled via an outlet valve to provide sufficient vapor pressure within the steam generator. When the exhaust valve is opened, a large amount of steam flows out due to the high pressure, which may entrain droplets from the tank.

Es ist Aufgabe der vorliegenden Erfindung, eine einfach aufgebaute Dampferzeugungseinrichtung mit einer verbesserten Dampfqualität für eine Wäschebehandlungsmaschine bereit zu stellen.It is an object of the present invention to provide a simply constructed steam generating device with an improved steam quality for a laundry treatment machine.

Die Aufgabe wird mit einer Dampferzeugungseinrichtung mit den Merkmalen des Anspruchs 1 und mit einer Wäschebehandlungsmaschine mit den Merkmalen des Anspruchs 14 gelöst. Bevorzugte Ausführungen ergeben sich aus den jeweils abhängigen Ansprüchen.The object is achieved with a steam generating device with the features of claim 1 and with a laundry treatment machine having the features of claim 14. Preferred embodiments will be apparent from the respective dependent claims.

Der wesentliche Vorteil der erfindungsgemäßen Dampferzeugungseinrichtung ist, dass auf einfache Weise die Tröpfchenbildung durch kondensierenden Dampf in einer Dampferzeugungseinrichtung weitgehend vermieden wird. Ferner wird sichergestellt, dass der Dampf sehr heiß die Dampferzeugungseinrichtung verlässt, so dass es in einer nachgeschalteten Leitung oder Düse nicht zur Kondensation kommt.The essential advantage of the steam generating device according to the invention is that in a simple manner, the formation of droplets by condensing steam in a steam generating device is largely avoided. Furthermore, it is ensured that the steam leaves the steam generating device very hot, so that condensation does not occur in a downstream line or nozzle.

Dies wird mittels einer zweiten beheizten Kammer erreicht, die der beheizten Kammer zur Dampferzeugung nachgeschaltet ist. In der zweiten Kammer wird der bereits erzeugte Dampf weiter erhitzt bzw. zumindest auf eine Temperatur oberhalb des Siedepunktes von Wasser gehalten, so dass er anschließend durch die Austrittsöffnung über Leitungen zum Behandlungsraum für die Wäsche gelangen kann. Die Kammern sind mittels einer Trennwand voneinander getrennt, die zur Verbindung zumindest eine Öffnung enthält.This is achieved by means of a second heated chamber, which is connected downstream of the heated chamber for generating steam. In the second chamber, the steam already generated is further heated or maintained at least at a temperature above the boiling point of water, so that it can then pass through the outlet opening via lines to the treatment room for the laundry. The chambers are separated by means of a partition, which contains at least one opening for connection.

In einer vorteilhaften Ausführung ist die Eintrittsöffnung mit einer Düse versehen, die dazu ausgebildet ist, das in die Dampferzeugungseinrichtung einströmende Wasser zu zerstäuben. Dadurch werden die Wandungen bzw. der Boden der erhitzten Kammer nicht so stark abgekühlt, wie es bei einem einfließenden Wasserschwall auftritt. Durch die Zerstäubung erfolgt eine Verteilung der Tröpfchen, was zu einer guten und schnellen Verdampfung führt, sobald die Tröpfchen die erhitzte Wandung erreichen. Der so erzeugte Dampf gelangt aufgrund des Druckanstiegs innerhalb der erhitzten Kammer, verursacht durch den Siedevorgang, in die zweite Kammer, in der er weiter erhitzt und zur Austrittsöffnung geführt wird. In einer vorteilhaften Weiterbildung besteht die Düse aus einem elastischen, hitzebeständigen Material, wobei sie ihren Öffnungsquerschnitt mittels des durch die Düse strömenden Wassers verändern kann. Durch die bereitgestellte Beweglichkeit der Düse werden Kalkablagerungen abgesprengt bzw. sie werden am Entstehen gehindert. Auch eine Ventilfunktion wird erreicht, so dass die Düse während der Wasserzufuhr geöffnet ist und sobald die Wasserzufuhr gestoppt ist, verengt sich der Querschnitt derart, dass kein oder nahezu kein Dampf durch die Düsenöffnung in Richtung der Pumpe dringt. Hierbei ist es zweckmäßig, als Material ein Silikonmaterial einzusetzen, welches beide Eigenschaften besitzt und dauerhaft bzw. während des gesamten Lebenszyklus einer Wäschebehandlungsmaschine seine elastischen Eigenschaften weitgehend beibehält.In an advantageous embodiment, the inlet opening is provided with a nozzle which is designed to atomize the water flowing into the steam generating device. As a result, the walls or the bottom of the heated chamber are not cooled as much as it occurs in an inflowing water surge. Sputtering results in a distribution of droplets, resulting in good and rapid evaporation as the droplets reach the heated wall. Due to the pressure rise within the heated chamber, caused by the boiling process, the steam thus generated passes into the second chamber, in which it is further heated and guided to the outlet opening. In an advantageous development, the nozzle consists of an elastic, heat-resistant material, wherein it can change its opening cross-section by means of the water flowing through the nozzle. Due to the provided mobility of the nozzle lime deposits are blasted or they are prevented from arising. Also, a valve function is achieved so that the nozzle is opened during the water supply and as soon as the water supply is stopped, the cross-section narrows so that no or almost no steam penetrates through the nozzle opening in the direction of the pump. It is expedient to use as a material a silicone material which has both properties and largely or permanently retains its elastic properties during the entire life cycle of a laundry treatment machine.

Für die Dimensionierung der Düse ist es zweckmäßig, dass sie einen Querschnitt aufweist, der um das 10 bis 40 fache kleiner ist, als der Querschnitt der Austrittsöffnung für den Dampf. Dadurch wird stets sichergestellt, dass der erzeugte Dampf nicht durch die Eintrittsöffnung zurückdringt und zuverlässig durch die Austrittsöffnung herausgelangt.For the dimensioning of the nozzle, it is expedient that it has a cross section which is 10 to 40 times smaller than the cross section of the outlet opening for the steam. This always ensures that the steam generated does not penetrate back through the inlet opening and reliably out through the outlet opening.

In einer weiteren, vorteilhaften Ausführung ist die zweite Kammer mit Wänden zur Ausbildung eines labyrinthartigen Kanals ausgestattet. Dadurch wird trotz kompakter Abmaße der zweiten Kammer ein längerer Kanal bereitgestellt, in dem der bereits erzeugte Dampf während des Durchströmens zusätzlich erhitzt werden kann.In a further advantageous embodiment, the second chamber is provided with walls for forming a labyrinth-like channel. As a result, despite the compact dimensions of the second chamber, a longer channel is provided, in which the steam already generated can be additionally heated during the flow through.

In einer zweckmäßigen Weiterbildung ist im Kanal zumindest eine bodenseitge Erhebung angebracht. Diese Erhebung verhindert, dass Kalkablagerungen oder doch am Boden befindliche Tröpfchen mitgerissen werden.In an expedient development, at least one bottom-elevation elevation is mounted in the channel. This survey prevents limescale deposits or even droplets on the ground from becoming entrained.

In einer weiteren, zweckmäßigen Ausführung umfasst die beheizte Kammer für den Siedevorgang zumindest eine Prallwand, die sich quer zur Einströmrichtung der Eintrittsöffnung erstreckt. Dadurch wird eine zusätzliche Verwirbelung des eingesprühten Wasserstaubes erreicht.In a further expedient embodiment, the heated chamber for the boiling process comprises at least one baffle wall, which extends transversely to the inflow direction of the inlet opening. As a result, an additional turbulence of the sprayed water dust is achieved.

In einer anderen, zweckmäßigen Ausführung umfasst die beheizte Kammer für den Siedevorgang mehrere zapfenförmige Erhebungen, die dazu eingerichtet sind, die Wärme innerhalb der Kammer zumindest nahezu gleichmäßig zu verteilen. Auch eine zusätzliche Verwirbelung wird durch diese zapfenförmigen Erhebungen erreicht.In another expedient embodiment, the heated chamber for the boiling process comprises a plurality of peg-shaped elevations, which are adapted to distribute the heat within the chamber at least almost evenly. An additional turbulence is achieved by these peg-shaped elevations.

Insgesamt ist es für eine kompakte Ausführung der Dampferzeugungseinrichtung vorteilhaft, die Eintrittsöffnung an einer seitlichen Wand der beheizten Kammer für den Siedevorgang und die Austrittsöffnung an einer seitlichen Wand der zweiten Kammer anzuordnen.Overall, it is advantageous for a compact design of the steam generating device to arrange the inlet opening on a side wall of the heated chamber for the boiling process and the outlet opening on a side wall of the second chamber.

In einer vorteilhaften Ausführung umfasst die Dampferzeugungseinrichtung einen Metallblock, in den die Kammern eingeformt sind und der außenseitig die Aufnahme für den Heizkörper bereitstellt, wobei die im Metallblock eingeformten Kammern mittels eines Deckels verschlossen sind, wobei der Metallblock dazu geeignet ist, die vom Heizkörper erzeugte Wärme zu speichern und/oder zu verteilen. Damit werden auf einfache Weise mit einem Bauteil sowohl die wärmespeichernde Masse als auch die Kammern bereitgestellt.In an advantageous embodiment, the steam generating device comprises a metal block, in which the chambers are formed and the outside provides the receptacle for the radiator, wherein the chambers formed in the metal block are closed by a lid, wherein the metal block is adapted to the heat generated by the radiator to store and / or distribute. Thus, both the heat-storing mass and the chambers are provided in a simple manner with a component.

In einer zweckmäßigen Weiterbildung ist der Heizkörper als ein mehrfach gekrümmter Rohrheizkörper ausgebildet, wobei die Aufnahme im Metallblock als eine an der Unterseite des Metallblocks eingeformte, der Krümmung des Rohrheizkörpers entsprechende Rinne ausgebildet ist. Damit wird ein guter Wärmeübergang vom Rohrheizkörper zum Metallblock bereitgestellt.In an expedient development of the radiator is designed as a multi-curved tubular heater, wherein the receptacle is formed in the metal block as a formed on the underside of the metal block, the curvature of the tubular heater corresponding groove. This provides a good heat transfer from the tubular heater to the metal block.

Für die in einem Haushalt übliche zu behandelnde Wäschemenge ist es zweckmäßig, den Metallblock aus einem Alublock mit einem Gewicht von 300 bis 800 g auszubilden und den Heizkörper mit einer Heizleistung von etwa 0,5 bis 1,5 KW zu versehen. Damit kann die ausreichende Dampfmenge zuverlässig erzeugt werden, ohne die elektrischen Anschlüsse im normalen Haushalt zu überlasten.For the customary in a household laundry to be treated, it is expedient to form the metal block of an aluminum block with a weight of 300 to 800 g and to provide the radiator with a heating power of about 0.5 to 1.5 KW. Thus, the sufficient amount of steam can be reliably generated without overloading the electrical connections in the normal household.

Die Erfindung betrifft ferner eine Wäschebehandlungsmaschine, wie Waschmaschine, Waschtrockner oder Trockner, mit einem Gehäuse, einem in dem Gehäuse angeordneten, im Wesentlichen zylinderförmigen Behälter zur Aufnahme der zu behandelnden Wäsche, einer Dampferzeugungseinrichtung wie vorstehend beschrieben, einer Düse zum Einlassen von Dampf in das Innere des Behälters, wobei das Wasser zur Eintrittsöffnung der Dampferzeugungseinrichtung mittels einer Pumpe förderbar ist, und einer Steuereinrichtung, die dazu eingerichtet ist, die Pumpe und den Heizkörper abhängig von einem Programmablauf zu steuern.The invention further relates to a laundry treating machine, such as washing machine, washer-dryer or dryer, comprising a housing, a substantially cylindrical container arranged in the housing for receiving the laundry to be treated, a steam generating device as described above, a nozzle for introducing steam into the interior the container, wherein the water to the inlet opening of the steam generating means is conveyed by means of a pump, and a control device which is adapted to control the pump and the radiator depending on a program sequence.

In einer zweckmäßigen Ausführung ist die Wäschebehandlungsmaschine als frontbeschickbare Wäschebehandlungsmaschine ausgebildet, umfassend eine durch eine Tür verschließbare im Wesentlichen kreisförmige Gehäuseöffnung, und eine im Wesentlichen kreisförmige Behälteröffnung, wobei die Düse zum Einlassen des Dampfes in den zylindrischen Behälter im oberen Randbereich der Behälteröffnung angeordnet ist. Die Anordnung der Düse zum Behandlungsraum ist besonders einfach im Bereich des Öffnungsrandes anzuordnen, wobei bei einer durchsichtigen Tür die Dampfbehandlung sehr gut von außen beobachtet werden kann.In an expedient embodiment, the laundry treatment machine is designed as a front-loading laundry treating machine, comprising a substantially circular housing opening closable by a door, and a substantially circular container opening, wherein the nozzle for introducing the steam is arranged in the cylindrical container in the upper edge region of the container opening. The arrangement of the nozzle to the treatment room is particularly easy to arrange in the region of the opening edge, wherein in a transparent door, the steam treatment can be very well observed from the outside.

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

Fig. 1:
eine Wäschebehandlungsmaschine mit einer Dampferzeugungseinrichtung in einer schematischen Schnittdarstellung;
Fig. 2:
die Dampferzeugungseinrichtung bzw. den Metallblock in einer detaillierten Explosionsansicht;
Fig. 3, 4:
den Metallblock in einer detaillierten Ansicht in verschiedenen Ausführungen und
Fig. 5
den Metallblock in einer seitlichen Ansicht.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it:
Fig. 1:
a laundry treatment machine with a steam generating device in a schematic sectional view;
Fig. 2:
the steam generating device or the metal block in a detailed exploded view;
3, 4:
the metal block in a detailed view in different versions and
Fig. 5
the metal block in a side view.

In Fig. 1 ist in rein schematischer Darstellung eine Wäschebehandlungsmaschine 1, hier eine Waschmaschine, mit einem Laugenbehälter 2 dargestellt. Die Positions- und Richtungsangaben beziehen sich auf die betriebsgemäße Aufstellposition der Wäschebehandlungsmaschine. Innerhalb des Laugenbehälters 2 ist eine drehbar gelagerte und über einen elektrischen Motor 13 angetriebene Trommel 3 angeordnet, die die im Laugenbehälter 2 bzw. in der Trommel 3 befindliche Wäsche 8 bewegt. Die Trommel 3 ist im vorliegenden Ausführungsbeispiel aus Edelstahl hergestellt und mit einer Vielzahl an Öffnungen für die Durchflutung versehen. Im unteren Bereich des Laugenbehälters 2 ist die Waschflüssigkeit 7 oder Wasser eingebracht, welche/s zum Reinigen oder Behandeln der Wäsche 8 benötigt wird. Zur Erwärmung oder zum Erhitzen der Flüssigkeit 7 ist im unteren Bereich des Laugenbehälters 2 ein Heizkörper (nicht dargestellt) angeordnet. Im oberen Bereich der Maschine 1 ist ein Einlassventil 15 skizziert, welches das Einlaufen des Wassers aus dem Versorgungsnetz steuert. Über den Einspülkasten 11 wird das Wasser über das Verbindungsrohr 14 in den Laugenbehälter 2 geleitet, wobei im Einspülkasten 11 eingegebenes Waschmittel mit in den Laugenbehälter 2 gespült wird. Zusätzlich besitzt die Wäschebehandlungsmaschine 1 eine Einrichtung 12 zur Erzeugung von Dampf, der über eine Leitung 16 und eine daran angeschlossene Düse 17 in das Innere des Laugenbehälters 2 bzw. in das Innere der Trommel 3 eingeblasen wird. Die Düse 17 ist im oberen Bereich der Dichtungsmanschette 6, welche die Verbindung zwischen der Öffnung 9 im Laugenbehälter 2 und der durch die Tür 5 verschließbaren Öffnung 10 im Gehäuse 4 bereitstellt, angebracht.In Fig. 1 is a purely schematic representation of a laundry treatment machine 1, here a washing machine, shown with a tub 2. The position and direction information refer to the operational installation position of the laundry treatment machine. Within the tub 2 a rotatably mounted and driven by an electric motor 13 drum 3 is arranged, which moves the washing 8 located in the tub 2 and in the drum 3. The drum 3 is made in the present embodiment of stainless steel and provided with a plurality of openings for the flooding. In the lower region of the tub 2, the washing liquid 7 or water is introduced, which is / s needed for cleaning or treating the laundry 8. For heating or for heating the liquid 7, a radiator (not shown) is arranged in the lower region of the tub 2. In the upper part of the machine 1, an inlet valve 15 is sketched, which controls the entry of the water from the supply network. About the Einspülkasten 11, the water is passed through the connecting pipe 14 in the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2. In addition, the laundry treating machine 1 has a device 12 for generating steam, which is injected via a line 16 and a nozzle 17 connected thereto in the interior of the tub 2 and in the interior of the drum 3. The nozzle 17 is in the upper region of the gasket 6, which provides the connection between the opening 9 in the tub 2 and the closable by the door 5 opening 10 in the housing 4, attached.

Zur Förderung des Wassers 27 in die Dampferzeugungseinrichtung 12 umfasst die Wäschebehandlungsmaschine 1 eine Pumpe 21, die dazu eingerichtet ist, das Wasser aus dem Tank 22 zur Eintrittsöffnung 18 der Dampferzeugungseinrichtung 12 zu fördern. Der Tank 22 wird über das steuerbare Einlassventil 15 befüllt. Zur Bereitstellung der Hygieneanforderungen ist zwischen dem Einlassventil 15 und dem Tank 22 im Bereich des Einspülkastens 11 eine freie Fließstrecke 11a angeordnet.For conveying the water 27 into the steam generating device 12, the laundry treatment machine 1 comprises a pump 21, which is adapted to convey the water from the tank 22 to the inlet opening 18 of the steam generating device 12. The tank 22 is filled via the controllable inlet valve 15. To provide the hygiene requirements, a free flow path 11a is arranged between the inlet valve 15 and the tank 22 in the region of the induction box 11.

An der Austrittsöffnung 19 ist eine Leitung 16 angeschlossen, über die der Dampf zur Düse 17 geleitet wird. Die Düse 17 ist im oberen Bereich am Rand der Öffnung 9 im Behandlungsraum, hier im Bereich der Dichtungsmanschette 6, angebracht, wobei die Düse 17 zum Inneren des Laugenbehälters 2 zeigt, so dass eine gute Dampfbesprühung der im Laugenbehälter 2 bzw. in der Trommel 3 befindlichen Wäsche 8 bereitgestellt wird. Eine Steuerung 29 steuert die Vorgänge für die Durchführung eines Wäschebehandlungsprogramms oder Waschprogramms und die Durchführung der Dampferzeugung, insbesondere das Ansteuern des Einlassventils 15 des Heizkörpers 26 und der Pumpe 21. Um mehr Wärme bereitzuhalten, als der Heizkörper 26 liefern kann, besitzt die Dampferzeugungseinrichtung 12 einen Alublock 26a, der als wärmespeichernde Masse mit dem Heizkörper 26 zusammenwirkt. Der erhöhte Wärmebedarf ist insbesondere dann erforderlich, wenn eine explosionsartige Dampfwolke erzeugt werden soll. Auch ein sanftes, kontinuierliches Bedampfen kann auf einfache Weise durch die Beeinflussung der Wasserzufuhr bereitgestellt werden. Die Eintrittsöffnung 18 ist mit einer Düse 24 ausgestattet, die das einlassende Wasser zerstäubt bzw. verteilt, so dass eine sehr gleichmäßige Verdampfung der kleinen Tröpfchen auf der heißen Oberflache des Alublocks 26a erreicht wird. Ferner ist die Düse 24 dazu ausgebildet, zu verhindern, dass der in der Dampferzeugungseinrichtung 12 erzeugte Dampf aus der Öffnung 18 über die Pumpe 21 in den Tank 22 zurückströmen kann. Ferner ist die Düse 24 aus wärmeisolierendem Material dazu ausgebildet, Verkalkungen am Wassereintritt zu vermeiden, da das einströmende Wasser durch einen unerwünschten Wärmeübergang vom Alublock 26 zur Düse 24 nicht vorgeheizt wird.At the outlet opening 19, a line 16 is connected, via which the steam is passed to the nozzle 17. The nozzle 17 is in the upper area at the edge of the opening 9 in the treatment room, here in the region of the sealing sleeve 6, with the nozzle 17 pointing towards the interior of the tub 2, so that a good steam spraying of the laundry 8 located in the tub 2 or in the drum 3 is provided. A controller 29 controls operations for executing a laundry treatment program or program and performing steam generation, particularly, driving the inlet valve 15 of the heater 26 and the pump 21. In order to provide more heat than the heater 26 can supply, the steam generator 12 has one Alublock 26a, which cooperates as a heat-storing mass with the radiator 26. The increased heat requirement is particularly necessary when an explosive vapor cloud is to be generated. Even a gentle, continuous steaming can be provided in a simple manner by influencing the water supply. The inlet opening 18 is provided with a nozzle 24 which atomises the incoming water so that very even evaporation of the small droplets on the hot surface of the aluminum block 26a is achieved. Further, the nozzle 24 is configured to prevent the steam generated in the steam generating device 12 from flowing back out of the opening 18 via the pump 21 into the tank 22. Furthermore, the nozzle 24 is made of heat-insulating material to avoid calcifications at the water inlet, since the inflowing water is not preheated by an undesirable heat transfer from the aluminum block 26 to the nozzle 24.

Als Wäschebehandlungsmaschine 1 kann anstelle einer Waschmaschine auch ein Trockner mit einer drehbaren Trommel 3 verwendet werden, der keinen Laugenbehälter 2 und keine Dichtungsmanschette 6 enthält. Hierbei ist die Düse 17 im Randbereich der Gehäuseöffnung angeordnet, damit der Dampf in das Innere der Trommel 3 eingespritzt werden kann.As a laundry treatment machine 1, instead of a washing machine, a dryer with a rotatable drum 3 can be used, which contains no tub 2 and no sealing sleeve 6. In this case, the nozzle 17 is arranged in the edge region of the housing opening, so that the steam can be injected into the interior of the drum 3.

Fig. 2 zeigt den Metallblock 26a mit Deckel 26b und Heizkörper 16 der erfindungsgemäßen Dampferzeugungseinrichtung 12 in einer Explosionsansicht. Im Metallblock 26a sind zwei Kammern eingeformt bzw. angeordnet, eine erste, beheizbare Kammer 20a zur Dampferzeugung und eine zweite Kammer 20b, die der ersten Kammer 20a nachgeschaltet ist. Fig. 2 shows the metal block 26a with lid 26b and radiator 16 of the steam generating device 12 according to the invention in an exploded view. In the metal block 26a, two chambers are formed or arranged, a first, heatable chamber 20a for generating steam and a second chamber 20b, which is connected downstream of the first chamber 20a.

In einer Seitenwand 34a der ersten Kammer 20a ist die Eintrittsöffnung 18 für das zugeführte Wasser vorgesehen. Innerhalb der ersten Kammer 20a ist zumindest eine Prallwand 28 vorgesehen, die eine Umlenkung oder Verwirbelung des zugeführten Wassers bewirkt. In der gezeigten Ausführung besitzt die erste Kammer insgesamt zwei nebeneinander liegende Prallwände 28. Die zweite Kammer 20b ist der ersten Kammer nachgeschaltet und mittels zusätzlicher Wände 32 zu einem labyrinthartigen Kanal 31 ausgebildet. Auch diese zweite Kammer 20b ist dazu eingerichtet, dass sie mittels des Heizkörpers 26 beheizt werden kann. Der Heizkörper 26 ist als mehrfach S-förmig gebogener Rohrheizkörper ausgebildet, der in eine korrespondierende kanalförmige oder rinnenförmige Aufnahme an der Unterseite des Metallblocks 26a, bezogen auf die betriebsgemäße Position der Dampferzeugungseinrichtung 12, aufgenommen wird bzw. angebracht ist. Der Heizkörper 26 ist hierbei so geformt, dass er sich sowohl unterhalb die ersten Kammer 20a zur Dampferzeugung als auch unterhalb der zweiten Kammer 20b zur Dampferhitzung erstreckt und somit beide Kammern gleichzeitig beheizen kann.In a side wall 34a of the first chamber 20a, the inlet opening 18 is provided for the supplied water. Within the first chamber 20a, at least one baffle 28 is provided, which causes a deflection or turbulence of the water supplied. In the embodiment shown, the first chamber has a total of two adjacent baffles 28. The second chamber 20b is connected downstream of the first chamber and formed by means of additional walls 32 to a labyrinth-like channel 31. This second chamber 20b is also set up so that it can be heated by means of the heating element 26. The radiator 26 is formed as a multiple S-shaped bent tubular heater, which in a corresponding channel-shaped or channel-shaped receptacle on the underside of the metal block 26a, based on the operating position of the steam generating device 12, is received or attached. The heater 26 is hereby shaped so that it extends both below the first chamber 20a for generating steam and below the second chamber 20b for steam heating and thus can heat both chambers simultaneously.

Die Einlassöffnung ist mit einer Düse 24 versehen, die ein Zerstäuben des einlassenden Wassers bewirkt. Die Austrittsöffnung 19 für den erhitzten Dampf ist in einer Seitenwand 34b der zweiten Kammer 20b angeordnet.The inlet opening is provided with a nozzle 24, which causes a sputtering of the incoming water. The heated steam outlet 19 is disposed in a side wall 34b of the second chamber 20b.

Fig. 3 zeigt eine Ausführung des Metallblocks 26a, bei der die erste Kammer 20a mit zapfenförmigen Erhebungen 30 zur verbesserten Wärmeverteilung und Verwirbelung des zerstäubten Wassers versehen ist. Hier ist die nachgeschaltete zweite Kammer 20b länglich quer zur Eintrittsrichtung des einlassenden Wassers angeordnet, ohne Labyrinth. Fig. 3 shows an embodiment of the metal block 26a, in which the first chamber 20a is provided with peg-shaped projections 30 for improved heat distribution and turbulence of the atomized water. Here, the downstream second chamber 20b is arranged oblong transversely to the inlet direction of the inlet water, without a labyrinth.

Fig. 4 zeigt eine Ausführung, bei der die erste Kammer 20a mit zapfenförmigen Erhebungen 30 und Prallwänden 28 versehen ist. Hierbei sind die Prallwände 28 gekrümmt ausgebildet, so dass das einströmende Wasser bzw. der Wasserstaub in unterschiedliche Hauptströmungen aufgeteilt und innerhalb der ersten Kammer 20a besser verteilt wird. Auch hier ist die zweite Kammer 20b als labyrinthartiger Kanal 31 ausgebildet. Fig. 4 shows an embodiment in which the first chamber 20a is provided with peg-shaped elevations 30 and baffles 28. Here, the baffles 28 are curved, so that the incoming water or the water dust is divided into different main streams and distributed better within the first chamber 20a. Again, the second chamber 20b is formed as a labyrinthine channel 31.

In der Seitenansicht gemäß Fig. 5 ist zu erkennen, dass die Eintrittsöffnung 18 und die Austrittsöffnung 19 jeweils außenseitig mit einem Stutzen 18a, 19a versehen sind, der den Anschluss eines Schlauches oder einer Leitung bereitstellt. An der Unterseite, bezogen auf die betriebsgemäße Position der Wäschebehandlungsmaschine bzw. der Dampferzeugungseinrichtung, ist der Metallblock 26a außenseitig mit einer Einformung 35 versehen, die zur verbesserten Anlage oder Aufnahme des Heizkörpers 26 dient.In the side view according to Fig. 5 It can be seen that the inlet opening 18 and the outlet opening 19 are each provided on the outside with a nozzle 18a, 19a, which provides the connection of a hose or a conduit. At the bottom, based on the operating position of the laundry treatment machine or the steam generating device, the metal block 26a is provided on the outside with a indentation 35, which serves for improved conditioning or recording of the radiator 26.

Claims (15)

Dampferzeugungseinrichtung (12) zur Behandlung von Wäsche mit Dampf in einer Wäschebehandlungsmaschine wie Waschmaschine, Waschtrockner oder Trockner, umfassend einen Heizkörper (26), eine mittels des Heizkörpers (26) beheizte Kammer (20a) zur Bereitstellung des Siedevorganges, mit einer Eintrittsöffnung (18) für Wasser und einer Austrittsöffnung (19) für Dampf,
dadurch gekennzeichnet,
dass der beheizten Kammer (20a) eine zweite beheizte Kammer (20b) zur weiteren Erhitzung und/oder zur Aufrechterhaltung der Temperatur des Dampfes nachgeschaltet ist.Steam generating device (12) for treating laundry with steam in a laundry treatment machine such as a washing machine, washer-dryer or dryer, comprising a heating element (26), a chamber (20a) heated by means of the heating element (26) for providing the boiling process, having an inlet opening (18) for water and a discharge opening (19) for steam,
characterized,
in that the heated chamber (20a) is followed by a second heated chamber (20b) for further heating and / or for maintaining the temperature of the steam. Dampferzeugungseinrichtung (12) nach Anspruch 1,
dadurch gekennzeichnet,
dass die Eintrittsöffnung mit einer Düse (24) versehen ist, die dazu ausgebildet ist, das in die Dampferzeugungseinrichtung (12) einströmende Wasser zu zerstäuben.Steam generating device (12) according to claim 1,
characterized,
in that the inlet opening is provided with a nozzle (24) which is designed to atomize the water flowing into the steam generating device (12). Dampferzeugungseinrichtung (12) nach Anspruch 2,
dadurch gekennzeichnet,
dass die Düse (24) aus einem elastischen, hitzebeständigen Material besteht und ihren Öffnungsquerschnitt mittels des durch die Düse (24) strömenden Wassers verändern kann.Steam generating device (12) according to claim 2,
characterized,
in that the nozzle (24) consists of an elastic, heat-resistant material and can change its opening cross section by means of the water flowing through the nozzle (24). Dampferzeugungseinrichtung (12) nach Anspruch 3,
dadurch gekennzeichnet,
dass die Düse (24) aus einem Silikonmaterial besteht.Steam generating device (12) according to claim 3,
characterized,
that the nozzle (24) consists of a silicone material. Dampferzeugungseinrichtung (12) nach Anspruch 2,
dadurch gekennzeichnet,
dass die Düse (24) einen Querschnitt aufweist, der um das 10 bis 40 fache kleiner ist, als der Querschnitt der Austrittsöffnung (19) für den Dampf.Steam generating device (12) according to claim 2,
characterized,
that the nozzle (24) has a cross section which is smaller by the 10 to 40 times, than the cross section of the outlet opening (19) for the steam. Dampferzeugungseinrichtung (12) nach Anspruch 1,
dadurch gekennzeichnet,
dass die zweite Kammer (20b) mit Wänden (32) zur Ausbildung eines labyrinthartigen Kanals (31) versehen ist.Steam generating device (12) according to claim 1,
characterized,
in that the second chamber (20b) is provided with walls (32) for forming a labyrinthine channel (31). Dampferzeugungseinrichtung (12) nach Anspruch 6,
dadurch gekennzeichnet,
dass im Kanal (31) zumindest eine bodenseitge Erhebung (33) angebracht ist.Steam generating device (12) according to claim 6,
characterized,
that in the channel (31) at least one bottom elevation (33) is mounted. Dampferzeugungseinrichtung (12) nach Anspruch 1,
dadurch gekennzeichnet,
dass die beheizte Kammer (20a) für den Siedevorgang zumindest eine Prallwand (28) umfasst, die sich quer zur Einströmrichtung der Eintrittsöffnung (18) erstreckt.Steam generating device (12) according to claim 1,
characterized,
in that the heated chamber (20a) for the boiling process comprises at least one baffle wall (28) which extends transversely to the inlet direction of the inlet opening (18). Dampferzeugungseinrichtung (12) nach Anspruch 1,
dadurch gekennzeichnet,
dass die beheizte Kammer (20a) für den Siedevorgang mehrere zapfenförmige Erhebungen (30) umfasst, die dazu eingerichtet sind, die Wärme innerhalb der Kammer (20a) zumindest nahezu gleichmäßig zu verteilen.Steam generating device (12) according to claim 1,
characterized,
in that the heated chamber (20a) for the boiling process comprises a plurality of peg-shaped elevations (30) which are adapted to distribute the heat within the chamber (20a) at least approximately evenly. Dampferzeugungseinrichtung (12) nach Anspruch 1,
dadurch gekennzeichnet,
dass die Eintrittsöffnung (18) an einer seitlichen Wand (34a) der beheizten Kammer (20a) für den Siedevorgang und die Austrittsöffnung (19) an einer seitlichen Wand (34b) der zweiten Kammer (20b) angeordnet ist.Steam generating device (12) according to claim 1,
characterized,
in that the inlet opening (18) is arranged on a lateral wall (34a) of the heated chamber (20a) for the boiling process and the outlet opening (19) on a lateral wall (34b) of the second chamber (20b). Dampferzeugungseinrichtung (12) nach einem der Ansprüche 1 bis 10,
gekennzeichnet durch
einen Metallblock (26a), in den die Kammern (20a, 20b) eingeformt sind und der außenseitig die Aufnahme (35) für den Heizkörper (26) bereitstellt, wobei die im Metallblock (26a) eingeformten Kammern (20a, 20b) mittels eines Deckels (26b) verschlossen sind, wobei der Metallblock (26a) dazu geeignet ist, die vom Heizkörper (26) erzeugte Wärme zu speichern und/oder zu verteilen.Steam generating device (12) according to one of claims 1 to 10,
marked by
a metal block (26a), in which the chambers (20a, 20b) are formed and the outside of the receptacle (35) for the radiator (26) provides, wherein the in the metal block (26a) molded chambers (20a, 20b) by means of a lid (26b) are closed, wherein the metal block (26a) is adapted to store and / or distribute the heat generated by the radiator (26). Dampferzeugungseinrichtung (12) nach Anspruch 11,
dadurch gekennzeichnet,
dass der Heizkörper (26) ein mehrfach gekrümmter Rohrheizkörper ist, und dass die Aufnahme (35) im Metallblock (26a) als eine an der Unterseite des Metallblocks eingeformte, der Krümmung des Rohrheizkörpers (26) entsprechende Rinne (35a) ausgebildet ist.Steam generating device (12) according to claim 11,
characterized,
in that the heating element (26) is a multiply curved tubular heating element, and in that the receptacle (35) in the metal block (26a) is formed as a groove (35a) formed on the underside of the metal block and corresponding to the curvature of the tubular heating element (26). Dampferzeugungseinrichtung (12) nach Anspruch 11,
dadurch gekennzeichnet,
dass der Metallblock aus einem Alublock (26a) mit einem Gewicht von 300 bis 800 g gebildet ist und dass der Heizkörper (26) eine Heizleistung von etwa 1,3 bis 2,1 KW besitzt.Steam generating device (12) according to claim 11,
characterized,
in that the metal block is formed from an aluminum block (26a) with a weight of 300 to 800 g and in that the heating body (26) has a heating power of approximately 1.3 to 2.1 KW. Wäschebehandlungsmaschine (1), wie Waschmaschine, Waschtrockner oder Trockner, mit einem Gehäuse (4), einem in dem Gehäuse (4) angeordneten, im Wesentlichen zylinderförmigen Behälter (2, 3) zur Aufnahme der zu behandelnden Wäsche (8), einer Dampferzeugungseinrichtung (12) nach einem der Ansprüche 1 bis 13, einer Düse (17) zum Einlassen von Dampf in den Innenraum des Behälters (2, 3), wobei das Wasser zur Eintrittsöffnung (18) der Dampferzeugungseinrichtung (12) mittels einer Pumpe (21) förderbar ist, und einer Steuereinrichtung, die dazu eingerichtet ist, die Pumpe (21) und den Heizkörpers (26) abhängig von einem Programmablauf zu steuern.Laundry treatment machine (1), such as a washing machine, washer-dryer or dryer, with a housing (4), a substantially cylindrical container (2, 3) arranged in the housing (4) for receiving the laundry (8) to be treated, a steam generator ( 12) according to one of claims 1 to 13, a nozzle (17) for introducing steam into the interior of the container (2, 3), wherein the water to the inlet opening (18) of the steam generating means (12) by means of a pump (21) conveyed is and a control device which is adapted to control the pump (21) and the radiator (26) depending on a program sequence. Wäschebehandlungsmaschine (1) nach Anspruch 14, welche als frontbeschickbare Wäschebehandlungsmaschine ausgebildet ist, umfassend eine durch eine Tür (5) verschließbare im Wesentlichen kreisförmige Gehäuseöffnung (10), und eine im Wesentlichen kreisförmigen Behälteröffnung (9), wobei die Düse (17) zum Einlassen des Dampfes in den zylindrischen Behälter (2,3) im oberen Randbereich der Behälteröffnung (9) angeordnet ist.A laundry treating machine (1) according to claim 14, which is formed as a front loadable laundry treating machine comprising a substantially circular housing opening (10) closable by a door (5), and a substantially circular container opening (9), said inlet inlet nozzle (17) of the vapor in the cylindrical container (2,3) in the upper edge region of the container opening (9) is arranged.
EP09008296A 2009-06-25 2009-06-25 Steam production device for a laundry treatment machine and laundry treatment machine Active EP2267209B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL09008296T PL2267209T3 (en) 2009-06-25 2009-06-25 Steam production device for a laundry treatment machine and laundry treatment machine
ES09008296T ES2377039T3 (en) 2009-06-25 2009-06-25 Steam generation device for a clothes treatment machine and clothes treatment machine
EP09008296A EP2267209B1 (en) 2009-06-25 2009-06-25 Steam production device for a laundry treatment machine and laundry treatment machine
AT09008296T ATE541980T1 (en) 2009-06-25 2009-06-25 STEAM GENERATING DEVICE FOR A LAUNDRY TREATMENT MACHINE AND LAUNDRY TREATMENT MACHINE

Applications Claiming Priority (1)

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EP09008296A EP2267209B1 (en) 2009-06-25 2009-06-25 Steam production device for a laundry treatment machine and laundry treatment machine

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EP2267209A1 true EP2267209A1 (en) 2010-12-29
EP2267209B1 EP2267209B1 (en) 2012-01-18

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AT (1) ATE541980T1 (en)
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US9964299B2 (en) * 2011-09-02 2018-05-08 Sharkninja Operating Llc Steam generator
US20130058635A1 (en) * 2011-09-02 2013-03-07 Euro-Pro Operating Llc Steam generator
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EP2832915A1 (en) * 2012-03-30 2015-02-04 Panasonic Corporation Clothes treatment device
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CN103443345B (en) * 2012-03-30 2016-04-13 松下电器产业株式会社 Device for clothing processing
EP2832914A4 (en) * 2012-03-30 2015-04-29 Panasonic Corp Clothes treatment device
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CN103502520A (en) * 2012-03-30 2014-01-08 松下电器产业株式会社 Clothes treatment device
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CN103534398B (en) * 2012-03-30 2016-03-09 松下电器产业株式会社 Device for clothing processing
EP2832915A4 (en) * 2012-03-30 2015-03-25 Panasonic Corp Clothes treatment device
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EP2832913A4 (en) * 2012-03-30 2015-04-29 Panasonic Corp Clothes treatment device
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CN104395521B (en) * 2012-06-22 2017-06-30 松下知识产权经营株式会社 Device for clothing processing
CN104395521A (en) * 2012-06-22 2015-03-04 松下知识产权经营株式会社 Clothing treatment device
EP2883989A4 (en) * 2012-08-09 2015-08-12 Panasonic Ip Man Co Ltd Clothes treatment device
EP2703542A3 (en) * 2012-09-04 2015-08-05 LG Electronics, Inc. Steam spraying apparatus and clothing drying machine including the same
AU2013222056B2 (en) * 2012-09-04 2016-02-25 Lg Electronics Inc. Steam spraying apparatus and clothing drying machine including the same
US20140069152A1 (en) * 2012-09-04 2014-03-13 Sungho Song Steam spraying apparatus and clothing drying machine including the same
US9347169B2 (en) 2012-09-04 2016-05-24 Lg Electronics Inc. Additive injecting apparatus and laundry treatment machine including the same
EP2703543A1 (en) * 2012-09-04 2014-03-05 LG Electronics, Inc. Additive injecting apparatus and laundry treatment machine including the same
US9752772B2 (en) 2012-09-04 2017-09-05 Lg Electronics Inc. Steam spraying apparatus and clothing drying machine including the same
EP3000927A1 (en) * 2014-09-29 2016-03-30 LG Electronics Inc. Steam generator and laundry treatment apparatus including the same
RU2623907C2 (en) * 2014-09-29 2017-06-29 ЭлДжи ЭЛЕКТРОНИКС ИНК. Steam generator and device for linen processing, including steam generator
US9689109B2 (en) 2014-09-29 2017-06-27 Lg Electronics Inc. Steam generator and laundry treatment apparatus including the same
US9683323B2 (en) 2014-09-29 2017-06-20 Lg Electronics Inc. Steam generator and laundry treatment apparatus including the same
EP3467186A1 (en) * 2014-09-29 2019-04-10 LG Electronics Inc. Steam generator and laundry treatment apparatus including the same
DE102015102252A1 (en) 2015-02-17 2016-08-18 Miele & Cie. Kg Steam unit for a laundry treatment machine such as a washing machine, washer-dryer or dryer
US11970813B2 (en) 2021-12-16 2024-04-30 Whirlpool Corporation Mating interface assembly between a dispenser hose and wash unit tub of a washer and dryer combination appliance

Also Published As

Publication number Publication date
EP2267209B1 (en) 2012-01-18
ATE541980T1 (en) 2012-02-15
ES2377039T3 (en) 2012-03-22
PL2267209T3 (en) 2012-05-31

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