EP2325374B1 - Laundry treatment machine with steam creation device - Google Patents

Laundry treatment machine with steam creation device Download PDF

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Publication number
EP2325374B1
EP2325374B1 EP09401041.0A EP09401041A EP2325374B1 EP 2325374 B1 EP2325374 B1 EP 2325374B1 EP 09401041 A EP09401041 A EP 09401041A EP 2325374 B1 EP2325374 B1 EP 2325374B1
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EP
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Prior art keywords
line
steam
washing machine
container
laundry treatment
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EP09401041.0A
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German (de)
French (fr)
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EP2325374A1 (en
Inventor
Dirk Sieding
Robert Müther
Hartmut Linnemann
Friedrich-Wilhelm Kramme
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Miele und Cie KG
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Miele und Cie KG
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Priority to ES09401041T priority Critical patent/ES2432801T3/en
Priority to EP09401041.0A priority patent/EP2325374B1/en
Publication of EP2325374A1 publication Critical patent/EP2325374A1/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 

Definitions

  • the invention relates to a laundry treatment machine, such as washing machine, washer dryer or dryer, with a housing, with a arranged in the housing, substantially cylindrical, mounted by a horizontal or inclined axis of rotation container for receiving the laundry to be treated, and a steam generating device with a radiator for Generation of steam, and a conduit for supplying the vapor into the interior of the container (see EP-A-1 865 099 ).
  • a laundry treatment machine such as washing machine, washer dryer or dryer
  • a housing with a arranged in the housing, substantially cylindrical, mounted by a horizontal or inclined axis of rotation container for receiving the laundry to be treated, and a steam generating device with a radiator for Generation of steam, and a conduit for supplying the vapor into the interior of the container (see EP-A-1 865 099 ).
  • 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 heated to 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.
  • water evaporates it often comes to the inner walls of the steam generating device to limescale that entrained after spalling at a subsequent evaporation and get into the laundry and thereby pollute.
  • a washing machine which comprises a further outlet at the bottom of the heating tank of the steam generating device, which opens into the drainage device of the washing machine by means of a line.
  • the heating tank can be flushed as needed or regularly.
  • This arrangement is quite complex due to the additional valve with the appropriate control. Furthermore, it can happen that despite intensive rinsing not all limescale residues are dissolved in the tank. In the The next evaporation they dissolve and thus arrive as lime particles to the laundry.
  • the present invention is therefore based on the object to provide a laundry treatment machine with an improved steam generating device, get as possible no lime particles for washing.
  • the essential advantage of the laundry treatment machine according to the invention is that reliably prevents in a simple manner that lime particles, which can not be avoided within the steam generating device, reach the laundry.
  • the results of the Wäschefinishing be significantly improved by this treatment with steam.
  • the control of the steam supply need not be changed compared to the known measures, so that a simple retrofitting of the steam lines existing laundry treatment machines with a steam generating device is possible.
  • the line for conducting the steam starting from the steam generating device is first guided downwards, based on the operational installation position of the laundry treatment machine, and a branching line is coupled to this line, which is guided to the container, said after Run down the line section extending from the branch down.
  • a branching line is coupled to this line, which is guided to the container, said after Run down the line section extending from the branch down.
  • the steam generating device in a washing machine, comprising a arranged in the housing, swingably attached tub with a horizontally or inclined arranged, rotatable drum and a drain device for discharging the washing liquid, the steam line is guided so that the branching line inside the tub or the drum opens.
  • the lower line section opens into the lower region of the tub below the drum. This also gets steam from down into the drum, whereby the laundry in the drum is steamed very quickly and evenly. Lime particles, which pass through this line into the tub, do not come into contact with the laundry, so that no special measures for the separation of lime particles must be made here. Lime particles accumulated in the tub are flushed out by the draining device after the next wash or rinse cycle.
  • a further, branching line is coupled to the line section, which opens into the lower region of the tub below the drum.
  • the branched line is free of lime particles.
  • the downwardly guided line section is formed as a blind line ending.
  • the bag line end In the bag line end, the deposited lime, and / or dirt particles collect.
  • the downwardly guided line section opens into the drainage device.
  • the accumulated limescale or dirt particles are regularly flushed out by means of the drainage device, so that no contamination or other inconvenience can occur.
  • the downwardly guided line section opens into the drainage device or into a component of this device
  • washing machine as a front-loadable washing machine with a substantially circular housing opening closable by a door, a substantially circular tub opening and a sealing sleeve, which is arranged for connection between the housing opening and the tub opening, it is advantageous to the line of the Steam generator to be opened in a arranged in the upper region of the gasket nozzle which is adapted to direct the steam into the drum. This ensures a good and uniform steaming of the laundry within the drum.
  • the nozzle is designed for the connection of two lines, wherein a line for the supply of steam and a line for the supply of water is intended.
  • a separate branch can be arranged above the nozzle, which provides the connection of the steam line and a water pipe.
  • the nozzle component itself can be provided with two terminals, so that only a single, already existing component is needed.
  • Fig. 1 is a purely schematic representation of a laundry treatment machine, here a washing machine 1, shown with a housing 4 arranged in the 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.
  • 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 or water is introduced, which / is required 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 into the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2.
  • the laundry treatment machine 1 has a device 12 for generating steam, which is blown via a line 16 and from there via the branched line 16a through a nozzle 17 connected thereto into the interior of the tub 2 and into the interior of the drum 3.
  • the steam generating device is supplied via the water supply means 15, 11 with water, which is heated with the radiator 26 and thereby evaporated.
  • 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 steam is introduced by means of the line 16a in the lower region of the tub 2.
  • the branched line section 16a is horizontally or obliquely upwardly coupled to the downwardly guided line 16.
  • a so-called Y-shaped connector can be used.
  • branching line 16 c is coupled, which opens into the lower region of the tub 2, below the drum 3.
  • the vertical line section 16b extends a little further down and then ends as a blind line.
  • This line section 16b forms the collecting volume for detached from the steam generating device 12 lime particles or dirt particles.
  • Fig. 2 an embodiment of a washing machine is sketched in which the downwardly guided line section 16b is guided to the discharge device 18.
  • the line section 16b opens into a component, in this case the drain pump 19.
  • the drain device 18 comprises a line 20a from the drain opening 2a in the tub to the drain pump 19 and starting therefrom an outlet line 20b, which leads to the outside to be drained washing liquid.
  • the lime particles or dirt particles entrained in the steam reach the so-called pump sump due to their mass inertia and their gravitational force. The next time you pump out these particles are flushed out.
  • an attenuator is arranged in the area of the discharge device or between the pump and the branch of the lines 16a to the tub 2, which prevents due to a recoil lye or water from the discharge area 18 to the nozzle 17 or in the steam lines 16a, 16c arrives.
  • the attenuator 22 is designed here as a valve or labyrinth, which offers a high flow resistance for the liquid in a recoil.
  • Fig. 3 are the components for the steam generation and the supply to the tub 2 ( Fig. 1 ) shown in detail in perspective.
  • the steam generating device 12 is in this case supplied by means of a pump 12b with water, which is temporarily stored in a tank 24a.
  • the tank 24a is filled by the water supply, which comprises at least one inlet valve 15 and a detergent dispenser 11.
  • the incoming water is at least partially guided via the line 24 to the nozzle 17.
  • the nozzle 17 is mounted in the gasket 6 and adapted to introduce both the incoming water and the steam into the drum 3 and the tub 2 (FIG. Fig. 1 ).
  • the steam-carrying line 16 is connected, which is passed down to the tub 2.
  • the line 16a is branched off to direct the steam to the nozzle.
  • the further downwardly extending line section 16b then get lime particles or dirt particles that come loose from the interior of the steam generating device 12 or are taken with the incoming fresh water with.
  • the lines 16, 16 a, 16 b are arranged in this embodiment at the front, frontal end of the tub 2 within the housing 4.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Description

Die Erfindung betrifft eine Wäschebehandlungsmaschine, wie Waschmaschine, Waschtrockner oder Trockner, mit einem Gehäuse, mit einem in dem Gehäuse angeordneten, im Wesentlichen zylinderförmigen, mittels einer horizontalen oder geneigten Drehachse gelagerten Behälter zur Aufnahme der zu behandelnden Wäsche, und einer Dampferzeugungseinrichtung mit einem Heizkörper zur Erzeugung von Dampf, und einer Leitung zum Zuführen des Dampfes in den Innenraum des Behälters (siehe EP-A-1 865 099 ).The invention relates to a laundry treatment machine, such as washing machine, washer dryer or dryer, with a housing, with a arranged in the housing, substantially cylindrical, mounted by a horizontal or inclined axis of rotation container for receiving the laundry to be treated, and a steam generating device with a radiator for Generation of steam, and a conduit for supplying the vapor into the interior of the container (see EP-A-1 865 099 ).

Zur verbesserten Wäschebehandlung, insbesondere zur Nachbehandlung nach dem Waschen, ist es zur Beseitigung von Knitter vorteilhaft, die Wäsche in einer Waschmaschine oder einem Trockner 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 geeignetFor improved laundry treatment, especially for after-treatment after washing, it is advantageous to eliminate wrinkles to treat the laundry in a washing machine or dryer 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 erhitzt, 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. Beim Wasserverdampfen kommt es an den Innenwandungen der Dampferzeugungseinrichtung häufig zu Kalkablagerungen, die nach dem Abplatzen bei einer nächstfolgenden Bedampfung mitgerissen und in die Wäsche gelangen und dadurch verschmutzen.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 heated to 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. When water evaporates it often comes to the inner walls of the steam generating device to limescale that entrained after spalling at a subsequent evaporation and get into the laundry and thereby pollute.

Aus der EP 1 544 345 A2 ist eine Waschmaschine bekannt, die einen weiteren Auslass an der Unterseite des Heiztanks der Dampferzeugungseinrichtung umfasst, der mittels einer Leitung in die Ablaufeinrichtung der Waschmaschine mündet. Dadurch kann der Heiztank bedarfsweise oder regelmäßig gespült werden. Diese Anordnung ist aufgrund des zusätzlichen Ventils mit der entsprechenden Ansteuerung recht aufwändig. Ferner kann es vorkommen, dass trotz intensiver Spülung nicht alle Kalkreste im Tank gelöst werden. Bei der nächstfolgenden Bedampfung lösen sie sich und gelangen dadurch als Kalkpartikel zur Wäsche.From the EP 1 544 345 A2 a washing machine is known, which comprises a further outlet at the bottom of the heating tank of the steam generating device, which opens into the drainage device of the washing machine by means of a line. As a result, the heating tank can be flushed as needed or regularly. This arrangement is quite complex due to the additional valve with the appropriate control. Furthermore, it can happen that despite intensive rinsing not all limescale residues are dissolved in the tank. In the The next evaporation they dissolve and thus arrive as lime particles to the laundry.

Der vorliegenden Erfindung liegt somit die Aufgabe zu Grunde, eine Wäschebehandlungsmaschine mit einer verbesserten Dampferzeugungseinrichtung bereit zu stellen, bei der möglichst keine Kalkpartikel zur Wäsche gelangen.The present invention is therefore based on the object to provide a laundry treatment machine with an improved steam generating device, get as possible no lime particles for washing.

Die Aufgabe wird durch eine Wäschebehandlungsmaschine mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte und zweckmäßige Ausführungen ergeben sich aus den nachfolgenden abhängigen Ansprüchen.The object is achieved by a laundry treatment machine with the features of claim 1. Preferred and expedient embodiments will become apparent from the following dependent claims.

Der wesentliche Vorteil der erfindungsgemäßen Wäschebehandlungsmaschine ist, dass auf einfache Weise zuverlässig verhindert wird, dass Kalkpartikel, die innerhalb der Dampferzeugungseinrichtung nicht zu vermeiden sind, zur Wäsche gelangen. Die Ergebnisse des Wäschefinishing werden durch diese Nachbehandlung mit Dampf erheblich verbessert. Die Steuerung der Dampfzuführung braucht gegenüber den bekannten Maßnahmen nicht verändert werden, so dass eine einfache Nachrüstung der Dampfleitungen bestehender Wäschebehandlungsmaschinen mit einer Dampferzeugungseinrichtung möglich ist.The essential advantage of the laundry treatment machine according to the invention is that reliably prevents in a simple manner that lime particles, which can not be avoided within the steam generating device, reach the laundry. The results of the Wäschefinishing be significantly improved by this treatment with steam. The control of the steam supply need not be changed compared to the known measures, so that a simple retrofitting of the steam lines existing laundry treatment machines with a steam generating device is possible.

Erfindungsgemäß ist hierbei vorgesehen, dass die Leitung zum Leiten des Dampfes, ausgehend von der Dampferzeugungseinrichtung zunächst nach unten geführt ist, bezogen auf die betriebsgemäße Aufstellposition der Wäschebehandlungsmaschine, und an dieser Leitung eine abzweigende Leitung angekoppelt ist, die zum Behälter geführt ist, wobei der nach unten geführte Leitungsabschnitt sich vom Abzweig ausgehend nach unten erstreckt. Dadurch gelangen mitgerissene Kalkpartikel aufgrund der Massenträgheit und der Schwerkraft in den nach unten erstreckenden Leitungsabschnitt, während der Dampf aufgrund des in der Leitung herrschenden Gas-Staudrucks in die abzweigende Leitung und durch diese Leitung in den Behälter zur Wäschebehandlung gelangt. Der Abzweig fungiert hierbei als Abscheider für Partikel, die mit dem in der Dampferzeugungseinrichtung erzeugten Dampf mit in die Dampfleitung gelangen.According to the invention, it is provided that the line for conducting the steam, starting from the steam generating device is first guided downwards, based on the operational installation position of the laundry treatment machine, and a branching line is coupled to this line, which is guided to the container, said after Run down the line section extending from the branch down. As a result entrain entrained lime particles due to the inertia and gravity in the downwardly extending line section, while the steam passes due to the prevailing in the line gas back pressure in the branching line and through this line in the container for laundry treatment. The branch acts as a separator for particles that get into the steam line with the steam generated in the steam generating device.

Beim Einsatz der Dampferzeugungseinrichtung in einer Waschmaschine, umfassend einen in dem Gehäuse angeordneten, schwingbeweglich befestigten Laugenbehälter mit einer darin horizontal oder geneigt angeordneten, drehbaren Trommel und einer Ablaufeinrichtung zum Ablassen der Waschflüssigkeit, ist die Dampfleitung derart geführt, dass die abzweigende Leitung im Inneren des Laugenbehälters oder der Trommel mündet.When using the steam generating device in a washing machine, comprising a arranged in the housing, swingably attached tub with a horizontally or inclined arranged, rotatable drum and a drain device for discharging the washing liquid, the steam line is guided so that the branching line inside the tub or the drum opens.

In einer vorteilhaften Weiterbildung mündet der untere Leitungsabschnitt in den unteren Bereich des Laugenbehälters unterhalb der Trommel. Damit gelangt zusätzlich Dampf von unten in die Trommel, wodurch die Wäsche in der Trommel sehr schnell und gleichmäßig bedampft wird. Kalkpartikel, die durch diese Leitung in den Laugenbehälter gelangen, kommen mit der Wäsche nicht in Berührung, so dass hier keine besonderen Maßnahmen zum Abscheiden der Kalkpartikel getroffen werden müssen. Im Laugenbehälter angesammelte Kalkpartikel werden nach dem nächsten Wasch- oder Spülgang mittels der Ablaufeinrichtung ausgeschwemmt.In an advantageous embodiment, the lower line section opens into the lower region of the tub below the drum. This also gets steam from down into the drum, whereby the laundry in the drum is steamed very quickly and evenly. Lime particles, which pass through this line into the tub, do not come into contact with the laundry, so that no special measures for the separation of lime particles must be made here. Lime particles accumulated in the tub are flushed out by the draining device after the next wash or rinse cycle.

In einer weiteren zweckmäßigen Ausführung ist am Leitungsabschnitt eine weitere, abzweigende Leitung angekoppelt, die in den unteren Bereich des Laugenbehälters unterhalb der Trommel mündet. In den nach unten weiter fortgesetzten Leitungsabschnitt gelangen dann lose Kalkpartikel, so dass die abgezweigte Leitung frei von Kalkpartikeln ist. Somit ist auch der in den unteren Bereich des Laugenbehälters zugeführte Dampf frei von Kalk- und/oder Schmutzpartikeln.In a further expedient embodiment, a further, branching line is coupled to the line section, which opens into the lower region of the tub below the drum. In the down further continued line section then loose lime particles, so that the branched line is free of lime particles. Thus, even in the lower region of the tub supplied steam is free of lime and / or dirt particles.

In einer zweckmäßigen Weiterbildung ist der nach unten geführte Leitungsabschnitt als Sackleitung endend ausgebildet. In dem Sackleitungsende sammeln sich die abgeschiedenen Kalk, und/oder Schmutzpartikel.In an expedient development of the downwardly guided line section is formed as a blind line ending. In the bag line end, the deposited lime, and / or dirt particles collect.

In einer alternativen, vorteilhaften Ausführung mündet der nach unten geführte Leitungsabschnitt in die Ablaufeinrichtung. Somit werden die angesammelten Kalk,- oder Schmutzpartikel regelmäßig mittels der Ablaufeinrichtung ausgespült, so dass keine Verkeimung oder sonstige Unannehmlichkeiten auftreten können.In an alternative, advantageous embodiment, the downwardly guided line section opens into the drainage device. Thus, the accumulated limescale or dirt particles are regularly flushed out by means of the drainage device, so that no contamination or other inconvenience can occur.

In der Ausführung, bei der der nach unten geführte Leitungsabschnitt in die Ablaufeinrichtung oder in eine Komponente dieser Einrichtung mündet ist es zweckmäßig, in den Leitungsabschnitt zwischen dem Abzweig der Leitung zum Laugenbehälter und der Ablaufeinrichtung ein Dämpfungsglied anzuordnen, das dazu ausgebildet ist, einen Rückstoß von Flüssigkeit aus der Ablaufeinrichtung in die Dampfleitungen zu unterbinden.In the embodiment in which the downwardly guided line section opens into the drainage device or into a component of this device, it is expedient to arrange in the line section between the branch of the line to the tub and the drainage means an attenuator, which is adapted to a recoil of To prevent liquid from the drainage device in the steam pipes.

Bei einer Ausführung der oben beschriebenen Waschmaschine als frontbeschickbare Waschmaschine mit einer durch eine Tür verschließbaren im Wesentlichen kreisförmigen Gehäuseöffnung, einer im Wesentlichen kreisförmigen Laugenbehälteröffnung und einer Dichtungsmanschette, die zur Verbindung zwischen der Gehäuseöffnung und der Laugenbehälteröffnung angeordnet ist, ist es vorteilhaft, die Leitung von der Dampferzeugungseinrichtung in eine im oberen Bereich der Dichtungsmanschette angeordnete Düse münden zu lassen die dazu eingerichtet ist, den Dampf in die Trommel zu leiten. Damit wird eine gute und gleichmäßige Bedampfung der Wäschestücke innerhalb der Trommel erreicht.In one embodiment of the above-described washing machine as a front-loadable washing machine with a substantially circular housing opening closable by a door, a substantially circular tub opening and a sealing sleeve, which is arranged for connection between the housing opening and the tub opening, it is advantageous to the line of the Steam generator to be opened in a arranged in the upper region of the gasket nozzle which is adapted to direct the steam into the drum. This ensures a good and uniform steaming of the laundry within the drum.

In einer zweckmäßigen Weiterbildung ist die Düse für die Anbindung von zwei Leitungen ausgebildet, wobei eine Leitung für die Zuführung von Dampf und eine Leitung für die Zuführung von Wasser bestimmt ist. Hierbei kann oberhalb der Düse eine separate Verzweigung angeordnet sein, die den Anschluss der Dampfleitung und einer Wasserleitung bereitstellt. Alternativ kann auch das Düsenbauteil selbst mit zwei Anschlüssen versehen werden, so dass nur ein einziges, ohnehin vorhandenes Bauteil benötigt wird.In an expedient development, the nozzle is designed for the connection of two lines, wherein a line for the supply of steam and a line for the supply of water is intended. Here, a separate branch can be arranged above the nozzle, which provides the connection of the steam line and a water pipe. Alternatively, the nozzle component itself can be provided with two terminals, so that only a single, already existing component is needed.

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 skizzierten Schnittdarstellung,
Fig. 2:
eine vorteilhafte Ausführung einer Waschmaschine mit einer Dampferzeugungseinrichtung und
Fig. 3:
Einzelteile der Dampferzeugungseinrichtung in einer perspektivischen 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 sketched sectional view,
Fig. 2:
an advantageous embodiment of a washing machine with a steam generating device and
3:
Individual parts of the steam generating device in a perspective view.

In Fig. 1 ist in rein schematischer Darstellung eine Wäschebehandlungsmaschine, hier eine Waschmaschine 1, mit einem im Gehäuse 4 angeordneten 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 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 oder Wasser eingebracht, die/das zum Reinigen oder Behandeln der Wäsche 8 benötigt wird.
Zur Erwärmung oder zum Erhitzen der Flüssigkeit 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, welcher über eine Leitung 16 und hiervon ausgehend über die abgezweigte Leitung 16a durch eine daran angeschlossene Düse 17 in das Innere des Laugenbehälters 2 bzw. in das Innere der Trommel 3 eingeblasen wird. Die Dampferzeugungseinrichtung wird über die Wasserzufuhreinrichtung 15, 11 mit Wasser versorgt, das mit dem Heizkörper 26 erhitzt und dadurch verdampft wird.In Fig. 1 is a purely schematic representation of a laundry treatment machine, here a washing machine 1, shown with a housing 4 arranged in the 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. 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 or water is introduced, which / is required for cleaning or treating the laundry 8.
For heating or for heating the liquid, 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 into the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2. In addition, the laundry treatment machine 1 has a device 12 for generating steam, which is blown via a line 16 and from there via the branched line 16a through a nozzle 17 connected thereto into the interior of the tub 2 and into the interior of the drum 3. The steam generating device is supplied via the water supply means 15, 11 with water, which is heated with the radiator 26 and thereby evaporated.

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 einer weiteren Ausführung wird der Dampf mittels der Leitung 16a in den unteren Bereich des Laugenbehälters 2 eingelassen.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. In a further embodiment, the steam is introduced by means of the line 16a in the lower region of the tub 2.

Der abgezweigte Leitungsabschnitt 16a ist waagerecht bzw. schräg nach oben weisend an die nach unten geführte Leitung 16 angekoppelt. Hierzu kann ein sogenanntes Y-förmiges Verbindungstück verwendet werden. Unterhalb dieses Abzweiges ist eine weitere, abzweigende Leitung 16c angekoppelt, die in den unteren Bereich des Laugenbehälters 2, unterhalb der Trommel 3 mündet. Der senkrechte Leitungsabschnitt 16b erstreckt sich noch etwas weiter nach unten und endet dann als Sackleitung. Dieser Leitungsabschnitt 16b bildet das Auffangvolumen für aus der Dampferzeugungseinrichtung 12 abgelöste Kalkpartikel oder Schmutzteilchen.The branched line section 16a is horizontally or obliquely upwardly coupled to the downwardly guided line 16. For this purpose, a so-called Y-shaped connector can be used. Below this branch another, branching line 16 c is coupled, which opens into the lower region of the tub 2, below the drum 3. The vertical line section 16b extends a little further down and then ends as a blind line. This line section 16b forms the collecting volume for detached from the steam generating device 12 lime particles or dirt particles.

In Fig. 2 ist eine Ausführung einer Waschmaschine skizziert, bei der der nach unten geführte Leitungsabschnitt 16b zur Ablaufeinrichtung 18 geführt ist. Hierbei mündet der Leitungsabschnitt 16b in einer Komponente, hier der Laugenpumpe 19. Die Ablaufeinrichtung 18 umfasst eine Leitung 20a von der Ablauföffnung 2a im Laugenbehälter zur Laugenpumpe 19 und davon ausgehend eine Austrittsleitung 20b, die die abzulassende Waschflüssigkeit nach außen führt. Die im Dampf mitgerissenen Kalkpartikel oder Schmutzteilchen gelangen aufgrund der Massenträgheit und der Schwerkraft in den sogenannten Pumpensumpf. Beim nächstfolgenden Abpumpen werden diese Teilchen mit ausgeschwemmt. In dem Leitungsabschnitt 16b ist im Bereich der Ablaufeinrichtung bzw. zwischen Pumpe und dem Abzweig der Leitungen 16a zum Laugenbehälter 2 ein Dämpfungsglied angeordnet, das verhindert, dass aufgrund eines Rückstoßes Lauge oder Wasser aus dem Ablaufbereich 18 zur Düse 17 oder in die Dampfleitungen 16a, 16c gelangt. Das Dämpfungsglied 22 ist hierbei als Ventil oder Labyrinth ausgeführt, das bei einem Rückstoß einen hohen Strömungswiderstand für die Flüssigkeit bietet.In Fig. 2 an embodiment of a washing machine is sketched in which the downwardly guided line section 16b is guided to the discharge device 18. In this case, the line section 16b opens into a component, in this case the drain pump 19. The drain device 18 comprises a line 20a from the drain opening 2a in the tub to the drain pump 19 and starting therefrom an outlet line 20b, which leads to the outside to be drained washing liquid. The lime particles or dirt particles entrained in the steam reach the so-called pump sump due to their mass inertia and their gravitational force. The next time you pump out these particles are flushed out. In the line section 16b, an attenuator is arranged in the area of the discharge device or between the pump and the branch of the lines 16a to the tub 2, which prevents due to a recoil lye or water from the discharge area 18 to the nozzle 17 or in the steam lines 16a, 16c arrives. The attenuator 22 is designed here as a valve or labyrinth, which offers a high flow resistance for the liquid in a recoil.

In Fig. 3 sind die Komponenten für die Dampferzeugung und die Zuführung zum Laugenbehälter 2 (Fig. 1) im Detail perspektivisch dargestellt. Die Dampferzeugungseinrichtung 12 wird hierbei mittels einer Pumpe 12b mit Wasser versorgt, das in einem Tank 24a zwischengespeichert wird. Der Tank 24a wird von der Wasserzuführung befüllt, die zumindest ein Einlassventil 15 und einen Einspülkasten 11 für Waschmittel umfasst. Das einlaufende Wasser wird zumindest teilweise über die Leitung 24 zur Düse 17 geführt. Die Düse 17 ist in der Dichtungsmanschette 6 angebracht und dazu eingerichtet, sowohl das einlaufende Wasser als auch den Dampf in die Trommel 3 bzw. den Laugenbehälter 2 (Fig. 1) einzulassen. An der Dampferzeugungseinrichtung ist die dampfführende Leitung 16 angeschlossen, die nach unten an den Laugenbehälter 2 vorbeigeführt ist. An dieser Leitung 16 ist abzweigend die Leitung 16a angeschlossen, um den Dampf zur Düse zu leiten. In den weiter nach unten erstreckenden Leitungsabschnitt 16b gelangen dann Kalkpartikel oder Schmutzteilchen, die sich aus dem Inneren der Dampferzeugungseinrichtung 12 lösen oder die mit dem einlaufenden Frischwasser mit eingelassen werden. Die Leitungen 16, 16a, 16 b sind in dieser Ausführung am vorderen, stirnseigen Ende des Laugenbehälters 2 innerhalb des Gehäuses 4 angeordnet.In Fig. 3 are the components for the steam generation and the supply to the tub 2 ( Fig. 1 ) shown in detail in perspective. The steam generating device 12 is in this case supplied by means of a pump 12b with water, which is temporarily stored in a tank 24a. The tank 24a is filled by the water supply, which comprises at least one inlet valve 15 and a detergent dispenser 11. The incoming water is at least partially guided via the line 24 to the nozzle 17. The nozzle 17 is mounted in the gasket 6 and adapted to introduce both the incoming water and the steam into the drum 3 and the tub 2 (FIG. Fig. 1 ). At the steam generating device, the steam-carrying line 16 is connected, which is passed down to the tub 2. On this line 16, the line 16a is branched off to direct the steam to the nozzle. In the further downwardly extending line section 16b then get lime particles or dirt particles that come loose from the interior of the steam generating device 12 or are taken with the incoming fresh water with. The lines 16, 16 a, 16 b are arranged in this embodiment at the front, frontal end of the tub 2 within the housing 4.

Claims (9)

  1. Laundry treatment appliance (1) such as a washing machine, washer-dryer or tumble dryer, comprising a housing (4), comprising a substantially cylindrical container (2, 3) for receiving laundry (8) to be treated, which container is arranged in the housing (4) and is supported by a horizontal or inclined rotary shaft, and a steam generation means (12) comprising a heating member (26) for generating steam, and a line (16, 16a) for supplying steam to the interior of the container (2, 3),
    characterised in that
    the line (16), starting from the steam generation means (12), is firstly guided downwards relative to the operational upright position of the laundry treatment appliance, and a branching line (16a) being coupled into this line (16), which branching line is guided to the container (2, 3), the downwardly guided line portion (16b) extending further downwards starting from the branch.
  2. Laundry treatment appliance (1) according to claim 1, wherein the laundry treatment appliance is a washing machine comprising a suds container (2) which is fastened so as to move in an oscillating manner, is arranged in the housing (4) and comprises a rotatable drum (3) arranged horizontally or in an inclined manner therein and a discharge means (18) for draining the washing liquid, the branched line (16a) discharging inside the suds container (2).
  3. Washing machine (1) according to claim 2, characterised in that the lower line portion (16b) discharges underneath the drum (3) into the lower region of the suds container (2).
  4. Washing machine (1) according to claim 2, characterised in that an additional branching line (16c) is coupled with the line portion (16b), which additional branching line discharges underneath the drum (3) into the lower region of the suds container (2).
  5. Laundry treatment appliance (1) according to claim 1, 2 or 4, characterised in that the downwardly guided line portion (16b) ends as a blind line.
  6. Washing machine (1) according to either claim 2 or claim 3, characterised in that the downwardly guided line portion (16b) discharges into the discharge means (18).
  7. Washing machine (1) according to claim 6, characterised in that a damping member (22) is arranged between the branch of the line (16a, 16c) which leads to the suds container (2) and the discharge means (18), which damping member is configured to suppress a backflow of liquid from the discharge means (18) into the steam lines (16, 16a, 16b, 16c).
  8. Washing machine (1) according to any of claims 2 to 6, which is configured as a front-loading washing machine comprising a substantially circular housing opening (10) which can be closed by a door (5), a substantially circular suds container opening (9) and a sealing sleeve (6), which is arranged so as to connect the housing opening (10) and the suds container opening (9), the line (16a) from the steam generation means (12) discharging into a nozzle (17) arranged in the upper region of the sealing sleeve (6), which nozzle is configured to convey the steam into the drum (3) or to the suds container.
  9. Washing machine (1) according to claim 8, characterised in that the nozzle (17) is configured to connect two lines (16, 24), one line (16a) being specified for supplying steam and another line (24) being specified for supplying water into the drum (3) or to the suds container (2).
EP09401041.0A 2009-11-23 2009-11-23 Laundry treatment machine with steam creation device Active EP2325374B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES09401041T ES2432801T3 (en) 2009-11-23 2009-11-23 Machine for the treatment of laundry with steam generating equipment
EP09401041.0A EP2325374B1 (en) 2009-11-23 2009-11-23 Laundry treatment machine with steam creation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09401041.0A EP2325374B1 (en) 2009-11-23 2009-11-23 Laundry treatment machine with steam creation device

Publications (2)

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EP2325374A1 EP2325374A1 (en) 2011-05-25
EP2325374B1 true EP2325374B1 (en) 2013-10-09

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ID=42126422

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EP09401041.0A Active EP2325374B1 (en) 2009-11-23 2009-11-23 Laundry treatment machine with steam creation device

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ES (1) ES2432801T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103058B4 (en) 2013-03-26 2015-03-19 Miele & Cie. Kg Laundry appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060096333A1 (en) * 2004-11-05 2006-05-11 Samsung Electronics Co., Ltd. Steam generating device and washing machine having the same
US20070283728A1 (en) * 2006-06-09 2007-12-13 Nyik Siong Wong Prevention of scale and sludge in a steam generator of a fabric treatment appliance
US20070283509A1 (en) * 2006-06-09 2007-12-13 Nyik Siong Wong Draining liquid from a steam generator of a fabric treatment appliance

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ES2432801T3 (en) 2013-12-05

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