EP2006432A2 - Method for operating a laundry handling machine with steam creation device and laundry handling machine - Google Patents
Method for operating a laundry handling machine with steam creation device and laundry handling machine Download PDFInfo
- Publication number
- EP2006432A2 EP2006432A2 EP08010758A EP08010758A EP2006432A2 EP 2006432 A2 EP2006432 A2 EP 2006432A2 EP 08010758 A EP08010758 A EP 08010758A EP 08010758 A EP08010758 A EP 08010758A EP 2006432 A2 EP2006432 A2 EP 2006432A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow rate
- steam
- water
- laundry
- temperature
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 230000003213 activating effect Effects 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000005338 heat storage Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/40—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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
- D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/60—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks
- D06F2103/62—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to auxiliary conditioning or finishing agents, e.g. filling level of perfume tanks related to systems for water or steam used for conditioning or finishing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/26—Heat pumps
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/30—Blowers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/32—Air flow control means
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/34—Filtering, e.g. control of lint removal devices
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/38—Conditioning or finishing, e.g. control of perfume injection
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/42—Detergent or additive supply
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/44—Opening, closing or locking of doors
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
Definitions
- the invention further relates to a laundry treatment machine such as washing machine, washer-dryer or dryer with a housing, with a closable by a door substantially circular housing opening and arranged in the housing, a substantially cylindrical container for receiving the laundry to be treated with a substantially circular container opening a nozzle for spraying steam and a device for generating steam, comprising a radiator, a temperature detecting means, an inlet opening and a steam outlet opening which can be injected via a nozzle in the region of the edge of the container opening into the interior of the container, and a control device for controlling the radiator and the water to be introduced into the steam generating device, for carrying out the method.
- a laundry treatment machine such as washing machine, washer-dryer or dryer with a housing, with a closable by a door substantially circular housing opening and arranged in the housing, a substantially cylindrical container for receiving the laundry to be treated with a substantially circular container opening a nozzle for spraying steam and a device for generating steam, comprising a radiator, a temperature
- 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 generator with a radiator, which can receive the liquid to be evaporated, wherein the radiator for heating and vaporizing the liquid is provided.
- the washing machine has a device for spraying or introducing water into the tub, wherein the device has a nozzle in the edge region of the door opening.
- the heater is heated to a predetermined temperature, for example at least 100 ° C, and then the liquid is admitted into the steam generator. In this way, jerky steam is generated.
- the water supply to the steam generator is stopped again.
- the water supply is switched on again, with this switching on and off of the water supply repeated several times.
- the steam generating device comprises a temperature sensor, by means of which the water supply is controlled. When falling below a predetermined temperature value of the water supply is reduced in the steam generating device. When exceeding the predetermined temperature value of the water supply is increased.
- the washing machine disclosed herein includes a steam generator for treating the laundry with steam.
- the steam generator has a container in which a predetermined amount of water is admitted. The liquid 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. Furthermore, water can also be conducted via the same line and nozzle into the interior of the drum.
- the inflow is directly connected to the water supply and is controlled by a valve.
- the steam exit is controlled via an outlet valve to provide sufficient vapor pressure within the steam generator. When opening the outlet valve, a great deal of steam flows out due to the high pressure, which entrains droplets from the container. However, droplets are undesirable in the treatment of laundry with steam because they moisten the laundry unevenly.
- the essential advantage of the method according to the invention is that the steam is generated predefined. For example, a substantially uniform or, alternatively, a jerky admission of steam into the treatment space and to the laundry to be treated may be provided as required.
- the radiator of the steam generator can be operated at a fairly low power in the range of 0.5 to 1.2 KW, providing an uninterrupted steam inlet throughout the steaming time.
- the reduction of the flow rate is made stepwise by a predetermined value.
- a step reduction for example, to about half the flow rate, is easy to provide.
- the steam generator may heat up again.
- the temperature is raised again to a value which is greater than the lower limit value but less than the upper limit value, the flow rate of the water to be introduced is increased starting from the low value.
- the radiator can be operated continuously with a predetermined power, the regulation of the temperature takes place with the change in the controllable flow rate of the water to be admitted.
- the increase in the flow rate of the water to be introduced can be carried out stepwise by a predetermined value or continuously.
- the predetermined flow rate is 1.6 to 5 ml / sec. and the reduced flow rate 0.3 to 1.5 ml / sec.
- the flow rates are such that when the water inlet with the high flow rate, the steam generating unit cools and heats up at the water inlet with the reduced flow rate when the radiator is switched on with, for example, about 1 KW power continuously.
- the predetermined upper limit for the temperature is about 160 ° C to 200 ° C and the lower limit is about 100 ° C to 140 ° C.
- the flow rate variable by the pump can be adjusted by means of a pulse-width-modulated switching on and off of the pump.
- a stepless change in the flow rate of the incoming Water is possible because the inertia of the water in the line attenuates the pulsating stream into a continuous flow of water.
- the supply of water to the steam generating device takes place directly via a controllable by the control device inlet valve.
- the opening and closing of the inlet valve is controlled so that the flow rate of the incoming water in the range of 0.3 to 5 ml / sec. is changeable.
- the steam generating device for heat storage has a mass which can be heated by the radiator.
- the mass is in this case preferably designed for a heat storage of about 5 KW, so that despite a lower line of the radiator, for example 0, 5 to 1.2 KW, a quantity of steam can be generated for the normally 5 KW would be needed.
- the mass is formed with an aluminum block with a weight of 300 to 800 g.
- An aluminum block can be optimally adapted or shaped to accommodate the radiator, and the surface can directly provide thermal contact with the recessed water.
- a radiator when using the Alublocks with a weight of 300 to 800 g, a radiator is used, which has a higher heating power than 1.2 KW, here about 1.3 to 2.1 KW. With the increased heating power more steam can be generated, or the steam generator can be heated faster. For this application, a higher connected load for the electrical energy must be provided.
- 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 having a plurality of openings for the flow Mistake.
- 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.
- a line 16 is connected, via which the steam or else Cyprusendes water is passed to the nozzle 17.
- the nozzle 17 is in the upper area at the edge of the opening 9 in the treatment chamber, here in the region of the sealing sleeve 6, mounted, the nozzle 17 to the interior of the tub 2 shows, so that a good Dampfbesprühung in the tub 2 and in the drum. 3 located laundry 8 is provided.
- a controller 29 controls operations for performing 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 interacts with the radiator 26 as a heat-storing mass. The increased heat requirement is particularly necessary at the beginning of steam generation, so that an explosive vapor cloud can be generated, which merges into a gentler, continuous steaming.
- the pump 21 receives the water to be delivered 27 from a tank 22 which 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 dip tube 23 is further used, which via the line 28 a direct connection to a further inlet opening 24 of the steam generating device 12 bypassing the pump 21 provides.
- an overflow is provided over the water from the tank 22 overflowing water through the dip tube 23, through the connecting line 28 to the steam generating device 12 and then passed through the line 16 to the nozzle 17 and from there into the interior of the drum 3 , After closing the inlet valve 15, a portion of the water 27 runs out of the tank until it reaches the level of the nozzle 17.
- the steam generating device 12 is arranged in an advantageous embodiment at a gradient to the outlet opening 19 so that it runs at least almost empty, so that a flushing takes place, whereby limescale and dirt deposits in the steam generating device 12 are prevented or at least reduced.
- 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 the timing for steam generation is outlined in a diagram.
- the radiator (heat) is switched on, which converts a power of 1 KW into heat in this example. It can be seen from the temperature curve Temp that the temperature is rising steadily.
- the water inlet is gradually reduced, set in this example to about a fraction and thus reduced to a flow rate 0, 3 ml / sec or slowly decreasing according to the dashed line to the value 0, 3 ml / sec. reduced.
- the temperature does not sink so much until it rises again.
- the water supply with the high, predetermined value, in this case 2 ml / sec is set.
- the process is repeated several times, as long as the Steam injection is activated.
- the radiator remains switched on.
- the time intervals are not absolutely fixed, because it is a temperature-dependent control.
- the steam generation time with the reduced amount of water is about 10 to 30 seconds in this example.
- Other flow rates or other continuous changes in flow rates are also possible if advantageous for the laundry to be treated. Using other flow rates or other continuous changes in flow rates or other heat outputs may result in other times.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Treatment Of Fiber Materials (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betreiben einer Wäschebehandlungsmaschine wie Waschmaschine, Waschtrockner oder Trockner mit einem Gehäuse, mit einer durch eine Tür verschließbaren, im Wesentlichen kreisförmigen Gehäuseöffnung und einem in dem Gehäuse angeordneten, im Wesentlichen zylinderförmigen Behälter zur Aufnahme der zu behandelnden Wäsche mit einer im Wesentlichen kreisförmigen Behälteröffnung und einer Einrichtung zur Erzeugung von Dampf, die einen Heizkörper, eine Eintrittsöffnung und eine Austrittsöffnung für Dampf umfasst und eine im Bereich der Behälteröffnung angeordnete Düse, mit den Schritten
- Aktivieren des Heizkörpers, bis die Temperatur einen vorbestimmten oberen Grenzwert erreicht hat,
- Einlassen von Wasser in den Behälter der Dampferzeugungseinrichtung mit einer vorbestimmten Fließgeschwindigkeit.
- Activating the radiator until the temperature has reached a predetermined upper limit,
- Introducing water into the container of the steam generator at a predetermined flow rate.
Die Erfindung betrifft ferner eine Wäschebehandlungsmaschine wie Waschmaschine, Waschtrockner oder Trockner mit einem Gehäuse, mit einer durch eine Tür verschließbaren, im Wesentlichen kreisförmigen Gehäuseöffnung und einem in dem Gehäuse angeordneten, im Wesentlichen zylinderförmigen Behälter zur Aufnahme der zu behandelnden Wäsche mit einer im Wesentlichen kreisförmigen Behälteröffnung, einer Düse zum Einsprühen von Dampf und einer Einrichtung zur Erzeugung von Dampf, die einen Heizkörper, ein Temperaturerfassungsmittel, eine Eintrittsöffnung und eine Austrittsöffnung für Dampf umfasst, der über eine Düse im Bereich des Randes der Behälteröffnung in den Innenraum des Behälters einspritzbar ist, und einer Steuereinrichtung zum Steuern des Heizkörpers und des in die Dampferzeugungseinrichtung einzulassenden Wassers, zur Durchführung des Verfahrens.The invention further relates to a laundry treatment machine such as washing machine, washer-dryer or dryer with a housing, with a closable by a door substantially circular housing opening and arranged in the housing, a substantially cylindrical container for receiving the laundry to be treated with a substantially circular container opening a nozzle for spraying steam and a device for generating steam, comprising a radiator, a temperature detecting means, an inlet opening and a steam outlet opening which can be injected via a nozzle in the region of the edge of the container opening into the interior of the container, and a control device for controlling the radiator and the water to be introduced into the steam generating device, for carrying out the method.
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.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.
Aus der
Aus der
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Es ist Aufgabe der vorliegenden Erfindung, die Dampfeinspritzung in einer Wäschebehandlungsmaschine mit einer Dampferzeugungseinrichtung der bekannten Art zu verbessern.It is an object of the present invention to improve the steam injection in a laundry treatment machine with a steam generating device of the known type.
Die Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 und mit einer Wäschebehandlungsmaschine mit den Merkmalen des Anspruchs 8 gelöst. Bevorzugte Ausführungen ergeben sich aus den abhängigen Ansprüchen 2 bis 7 und 9 bis 16.The object is achieved by a method having the features of
Der wesentliche Vorteil des erfindungsgemäßen Verfahrens ist, dass der Dampf vordefiniert erzeugt wird. Beispielsweise kann, je nach Anforderung, ein im Wesentlichen gleichmäßiges oder alternativ ein stoßartiges Einlassen von Dampf in den Behandlungsraum und auf die zu behandelnde Wäsche bereitgestellt werden. Ein weiterer Vorteil ist, dass der Heizkörper der Dampferzeugungseinrichtung mit einer recht geringen Leistung im Bereich von 0,5 bis 1,2 KW betrieben werden kann, wobei ein ununterbrochener Dampfeinlass über die gesamte Zeit der Dampfbehandlung bereitgestellt wird.The essential advantage of the method according to the invention is that the steam is generated predefined. For example, a substantially uniform or, alternatively, a jerky admission of steam into the treatment space and to the laundry to be treated may be provided as required. Another advantage is that the radiator of the steam generator can be operated at a fairly low power in the range of 0.5 to 1.2 KW, providing an uninterrupted steam inlet throughout the steaming time.
Erfindungsgemäß ist bei dem Verfahren zum Betreiben der Wäschebehandlungsmaschine vorgesehen, dass die Temperatur der Dampferzeugungseinrichtung während des Wassereinlassens erfasst und von der Steuereinrichtung ausgewertet wird. Beim Erhitzen und Verdampfen des eingelassenen Wassers kühlt sich die Dampferzeugungseinrichtung ab, da die Heizleistung des Heizkörpers eine geringere Leistung hat, als das eingelassene Wasser zum Verdampfen benötigt. Beim Unterschreiten eines unteren Grenzwertes wird die vorbestimmte Fließgeschwindigkeit des eingelassenen Wassers vermindert, so dass sich die Dampferzeugungseinrichtung nicht weiter abkühlt, wobei dann mit der geringeren eingelassenen Wassermenge Dampf erzeugt wird. Es wird auf diese Weise eine ununterbrochene, modulierende Dampferzeugung bereitgestellt, die eine besonders gleichmäßige und schonende Behandlung der Wäsche bietet.According to the invention, it is provided in the method for operating the laundry treatment machine that the temperature of the steam generating device is detected during water intake and evaluated by the control device. When heating and evaporating the water taken in, the steam generating device cools down, since the heating power of the radiator has a lower power than the recessed water needed for evaporation. When falling below a lower limit, the predetermined flow rate of the recessed water is reduced, so that the steam generating device does not cool further, in which case with the lower amount of water introduced steam is generated. It is provided in this way an uninterrupted, modulating steam generation, which provides a particularly uniform and gentle treatment of the laundry.
Beim Einsatz der Dampferzeugungseinrichtung in einer Waschmaschine mit einem in dem Gehäuse angeordneten, schwingbeweglich befestigten Laugenbehälter mit einer darin horizontal oder geneigt angeordneten, drehbaren Trommel und einer im Wesentlichen kreisförmigen Laugenbehälteröffnung und einer Dichtungsmanschette, die zur Verbindung zwischen der Gehäuseöffnung und der Laugenbehälteröffnung angeordnet ist, ist es zweckmäßig, die Düse zum Einspülen von Wasser und Einsprühen von Dampf in der Dichtungsmanschette anzuordnen. Somit ist eine gleichmäßige und zuverlässige Dampfbehandlung der Wäsche von der Einfüllöffnung aus sichergestellt, insbesondere, wenn die Düse im oberen Bereich des Dichtrings oder der Einfüllöffnung der Trommel angebracht ist. Die Richtungsangaben beziehen sich auf die betriebsgemäße Aufstellposition der Wäschebehandlungsmaschine.When using the steam generating device in a washing machine with a arranged in the housing, swingably mounted tub with a horizontally or inclined arranged therein, rotatable drum and a substantially circular tub opening and a sealing sleeve, which is arranged for connection between the housing opening and the tub opening it is convenient to arrange the nozzle for rinsing water and spraying steam in the gasket. Thus, a uniform and reliable steam treatment of the laundry from the filling opening is ensured, in particular when the nozzle is mounted in the upper region of the sealing ring or the filling opening of the drum. The directional information refers to the operational installation position of the laundry treatment machine.
In einer zweckmäßigen Ausführung wird die Verminderung der Fließgeschwindigkeit um einen vorbestimmten Wert stufenförmig vorgenommen. Eine stufenförmige Verminderung, beispielsweise auf die in etwa halbe Fließgeschwindigkeit, ist einfach bereitzustellen.In an expedient embodiment, the reduction of the flow rate is made stepwise by a predetermined value. A step reduction, for example, to about half the flow rate, is easy to provide.
In einer anderen Ausführung wird die Fließgeschwindigkeit kontinuierlich in Abhängigkeit des Temperaturverlaufs vermindert. Mit dieser kontinuierlichen Verminderung der Fließgeschwindigkeit, die einen geringeren Wassereinlass zur Folge hat, kann die Dampfmenge sehr genau und fein eingestellt werden.In another embodiment, the flow rate is continuously reduced as a function of the temperature profile. With this continuous reduction of the flow rate, which results in a lower water inlet, the amount of steam can be adjusted very accurately and finely.
Bei dem Wassereinlass mit niedrigerer Fließgeschwindigkeit kann sich die Dampferzeugungseinrichtung wieder aufheizen. Hierbei ist es zweckmäßig, dass bei einem erneuten Anstieg der Temperatur auf einen Wert, der größer ist als der untere Grenzwert, aber kleiner als der obere Grenzwert, die Fließgeschwindigkeit des einzulassenden Wassers vom niedrigen Wert ausgehend erhöht wird. Somit kann der Heizkörper kontinuierlich mit einer vorbestimmten Leistung betrieben werden, die Regelung der Temperatur erfolgt mit der Veränderung der steuerbaren Fließgeschwindigkeit des einzulassenden Wassers.At the lower flow rate water inlet, the steam generator may heat up again. In this case, it is expedient that, when the temperature is raised again to a value which is greater than the lower limit value but less than the upper limit value, the flow rate of the water to be introduced is increased starting from the low value. Thus, the radiator can be operated continuously with a predetermined power, the regulation of the temperature takes place with the change in the controllable flow rate of the water to be admitted.
Die Erhöhung der Fließgeschwindigkeit des einzulassenden Wassers kann hierbei stufenförmig um einen vorbestimmten Wert oder kontinuierlich vorgenommen werden.The increase in the flow rate of the water to be introduced can be carried out stepwise by a predetermined value or continuously.
In einer zweckmäßigen Ausführung beträgt die vorbestimmte Fließgeschwindigkeit 1,6 bis 5 ml / sek. und die verminderte Fließgeschwindigkeit 0,3 bis 1,5 ml / sek. Die Fließgeschwindigkeiten sind so bemessen, dass sich beim Wassereinlauf mit der hohen Fließgeschwindigkeit die Dampferzeugungseinheit abkühlt und beim Wassereinlauf mit der verminderten Fließgeschwindigkeit aufheizt, wenn der Heizkörper mit beispielsweise etwa 1 KW Leistung dauernd eingeschaltet ist.In a preferred embodiment, the predetermined flow rate is 1.6 to 5 ml / sec. and the reduced flow rate 0.3 to 1.5 ml / sec. The flow rates are such that when the water inlet with the high flow rate, the steam generating unit cools and heats up at the water inlet with the reduced flow rate when the radiator is switched on with, for example, about 1 KW power continuously.
Für die Dimensionierung der Grenzwerte für die Temperatur ist es vorteilhaft, dass der vorbestimmte obere Grenzwert für die Temperatur etwa 160 °C bis 200 °C und der untere Grenzwert etwa 100 °C bis 140 °C beträgt. Mit diesen Werten ist sichergestellt, dass die Dampferzeugung kontinuierlich erfolgt, wobei unerwünschte Tröpfchenbildung weitestgehend vermieden wird.For the dimensioning of the limit values for the temperature, it is advantageous that the predetermined upper limit for the temperature is about 160 ° C to 200 ° C and the lower limit is about 100 ° C to 140 ° C. These values ensure that steam generation is continuous, avoiding unwanted droplet formation as much as possible.
Bei der Wäschebehandlungsmaschine, die dazu geeignet ist, das vorstehend beschriebene Verfahren durchzuführen, ist es zweckmäßig, eine durch die Steuereinrichtung steuerbare Pumpe, mit der das Wasser zur Dampferzeugungseinrichtung förderbar ist und wobei die Fließgeschwindigkeit im Bereich von 0,3 bis 5 ml / sek veränderbar ist, einzusetzen. Mit dieser gesteuerten Pumpe können die Fließgeschwindigkeiten für das einlaufende Wasser bereitgestellt werden, bei denen das Wasser kontinuierlich verdampft wird.In the laundry treating machine capable of carrying out the above-described process, it is desirable to be able to control a pump controllable by the controller, with which the water can be conveyed to the steam generating means, and the flow rate can be varied in the range of 0.3 to 5 ml / sec is to use. With this controlled pump, the flow rates can be provided for the incoming water, in which the water is continuously evaporated.
In einer vorteilhaften Weiterbildung ist die durch die Pumpe veränderbare Fließgeschwindigkeit mittels eines pulsweitenmodulierten Ein- und Ausschaltens der Pumpe einstellbar. Hierbei ist auf einfache Weise eine stufenlose Veränderung der Fließgeschwindigkeit des einlaufenden Wassers möglich, da durch die Trägheit des Wassers in der Leitung der pulsierende Strom in einen kontinuierlichen Wasserstrom gedämpft wird.In an advantageous development, the flow rate variable by the pump can be adjusted by means of a pulse-width-modulated switching on and off of the pump. Here, in a simple manner, a stepless change in the flow rate of the incoming Water is possible because the inertia of the water in the line attenuates the pulsating stream into a continuous flow of water.
In einer anderen Ausführung erfolgt die Zuführung des Wassers zur Dampferzeugungseinrichtung direkt über ein durch die Steuereinrichtung steuerbares Einlassventil. Hierbei wird das Öffnen und Schließen des Einlassventils so gesteuert, dass die Fließgeschwindigkeit des einlaufenden Wassers im Bereich von 0,3 bis 5 ml / sek. veränderbar ist.In another embodiment, the supply of water to the steam generating device takes place directly via a controllable by the control device inlet valve. Here, the opening and closing of the inlet valve is controlled so that the flow rate of the incoming water in the range of 0.3 to 5 ml / sec. is changeable.
In einer zweckmäßigen Weiterbildung ist das Einlassventil oder die Pumpe so ausgelegt, dass die Fließgeschwindigkeit stufenförmig oder kontinuierlich veränderbar ist.In an expedient development, the inlet valve or the pump is designed so that the flow rate can be varied stepwise or continuously.
In einer vorteilhaften Ausführung besitzt die Dampferzeugungseinrichtung zur Wärmespeicherung eine Masse, die vom Heizkörper erhitzbar ist. Die Masse ist hierbei vorzugsweise für eine Wärmespeicherung von etwa 5 KW ausgelegt, so dass trotz einer geringeren Leitung des Heizkörpers, beispielsweise 0, 5 bis 1,2 KW eine Dampfmenge erzeugt werden kann, für die normalerweise 5 KW benötigt würden. Es ist hierbei zweckmäßig, dass die Masse mit einem Alublock mit einem Gewicht von 300 bis 800 g gebildet ist. Ein Alublock kann optimal für die Aufnahme des Heizkörpers angepasst oder geformt werden und die Oberfläche kann direkt den Wärmekontakt mit dem eingelassenen Wasser bereitstellen.In an advantageous embodiment, the steam generating device for heat storage has a mass which can be heated by the radiator. The mass is in this case preferably designed for a heat storage of about 5 KW, so that despite a lower line of the radiator, for example 0, 5 to 1.2 KW, a quantity of steam can be generated for the normally 5 KW would be needed. It is expedient that the mass is formed with an aluminum block with a weight of 300 to 800 g. An aluminum block can be optimally adapted or shaped to accommodate the radiator, and the surface can directly provide thermal contact with the recessed water.
In einer anderen Ausführung wird bei der Verwendung des Alublocks mit einem Gewicht von 300 bis 800 g ein Heizkörper eingesetzt, der eine höhere Heizleistung als 1,2 KW, hierbei etwa 1,3 bis 2,1 KW besitzt. Mit der erhöhten Heizleistung kann mehr Dampf erzeugt, oder die Dampferzeugungseinrichtung schneller aufgeheizt werden. Für diese Anwendung muss ein höherer Anschlusswert für die elektrische Energie bereitgestellt werden.In another embodiment, when using the Alublocks with a weight of 300 to 800 g, a radiator is used, which has a higher heating power than 1.2 KW, here about 1.3 to 2.1 KW. With the increased heating power more steam can be generated, or the steam generator can be heated faster. For this application, a higher connected load for the electrical energy must be provided.
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 und
- Fig. 2:
- die Temperatur, den Wasserzulauf und die Heizaktivität in zeitlichem Verlauf.
- Fig. 1:
- a laundry treatment machine with a steam generating device in a sketched sectional view and
- Fig. 2:
- the temperature, water supply and heating activity over time.
In
Zur Förderung des Wassers 27 in die Dampferzeugungseinrichtung 12 umfasst die Wäschebehandlungsmaschine 1 eine Pumpe 21, die an ihrer Druckseite für das zu fördernde Wasser 27 ein Rückschlagventil 20 besitzt. Das Rückschlagventil verhindert, dass in der Dampferzeugungseinrichtung 12 erzeugter Dampf aus der Öffnung 18 über die Pumpe 21 zurückströmt.To convey the
An der Austrittsöffnung 19 ist eine Leitung 16 angeschlossen, über die der Dampf oder einzuspülendes Wasser 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 zu Beginn der Dampferzeugung erforderlich, damit eine explosionsartige Dampfwolke erzeugt werden kann, die in ein sanfteres, kontinuierliches Bedampfen übergeht.At the outlet opening 19, a line 16 is connected, via which the steam or einzuspülendes water is passed to the
Die Pumpe 21 erhält das zu fördernde Wasser 27 aus einem Tank 22, der über das steuerbare Einlassventil 15 befüllt wird. Zur Bereitstellung der Hygieneanforderungen ist zwischen dem Einlassventil 15 und dem Tank 22 im Bereich des Einspülkastens 11 eine freie Fließstrecke 11a angeordnet. In den Tank 22 ist ferner ein Tauchrohr 23 eingesetzt, welches über die Leitung 28 eine direkte Verbindung zu einer weiteren Einlassöffnung 24 der Dampferzeugungseinrichtung 12 unter Umgehung der Pumpe 21 bereitstellt. Mit diesem Bypass wird ein Überlauf bereitgestellt, über den aus dem Tank 22 überlaufendes Wasser durch das Tauchrohr 23, durch die Verbindungsleitung 28 zur Dampferzeugungseinrichtung 12 und dann durch die Leitung 16 zur Düse 17 geführt und von dort aus in den Innenraum der Trommel 3 eingelassen wird. Nach dem Schließen des Einlassventils 15 läuft ein Teil des Wassers 27 aus dem Tank heraus, bis es das Niveau der Düse 17 erreicht hat. Die Dampferzeugungseinrichtung 12 ist in einer vorteilhaften Ausführung unter einem Gefälle zur Austrittsöffnung 19 angeordnet, so dass sie zumindest fast leerläuft, so dass eine Durchspülung erfolgt, wodurch Kalk- und Schmutzablagerungen in der Dampferzeugungseinrichtung 12 verhindert bzw. zumindest vermindert werden.The
Während der Dampferzeugung wird durch das Tauchrohr der Dampfaustritt aus der weiteren Einlassöffnung 24 verhindert, wobei diese Anordnung wie ein Siphon wirkt, der bei einem zu hohen Druck den Dampf zurück in den Tank 22 strömen lässt. Mit der Anordnung wird ein Überdruckventil bereitgestellt, das einen zu hohen Druck in der Dampferzeugungseinrichtung 12 verhindert.During the generation of steam, the steam outlet from the further inlet opening 24 is prevented by the dip tube, this arrangement acting like a siphon, which allows the steam to flow back into the
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
In
Claims (16)
dass die Temperatur der Dampferzeugungseinrichtung (12) während des Wassereinlassens erfasst wird und beim Unterschreiten eines unteren Grenzwertes (TI) die vorbestimmte Fließgeschwindigkeit des eingelassenen Wassers vermindert wird und dass bei einem erneuten Anstieg der Temperatur auf einen Wert, der größer ist als der untere Grenzwert (TI), aber kleiner als der obere Grenzwert (Th), die Fließgeschwindigkeit des einzulassenden Wassers (27) vom niedrigen Wert ausgehend erhöht wird, wobei der Heizkörper (26) kontinuierlich mit einer vorbestimmten Leistung betrieben wird.Method for operating a laundry treatment machine (1) such as a washing machine, washer-dryer or dryer, having a housing (4) with a substantially circular housing opening (10) which can be closed by a door (5), and one arranged in the housing (4) Substantially cylindrical container (2, 3) for receiving the laundry (8) to be treated with a substantially circular container opening (9) and a device (12) for generating steam, comprising a heating body (26), an inlet opening (18) and an outlet opening (19) for steam, and a nozzle (17) arranged in the area of the container opening (9), with the steps
in that the temperature of the steam generating device (12) is detected during the water intake and that, when a lower limit value (TI) is undershot, the predetermined flow rate of the introduced water is reduced and if the temperature rises again to a value which is greater than the lower limit value (TI) TI), but less than the upper limit (Th), the flow rate of the water (27) to be introduced is increased from the low value, the heater (26) is continuously operated at a predetermined power.
dadurch gekennzeichnet,
dass die Verminderung der Fließgeschwindigkeit um einen vorbestimmten Wert stufenförmig vorgenommen wird.A method of operating a laundry treating machine (1) according to claim 1,
characterized,
that the reduction of the flow rate by a predetermined value is performed stepwise.
dadurch gekennzeichnet,
dass die Fließgeschwindigkeit kontinuierlich in Abhängigkeit des Temperaturverlaufs vermindert wird.A method of operating a laundry treating machine (1) according to claim 1,
characterized,
that the flow rate is continuously reduced as a function of the temperature profile.
dadurch gekennzeichnet,
dass bei einem weiteren Temperaturanstieg die Erhöhung der Fließgeschwindigkeit des einzulassenden Wassers (27) um einen vorbestimmten Wert stufenförmig vorgenommen wird.A method of operating a laundry treating machine (1) according to claim 1,
characterized,
that at a further increase in temperature, the increase of the flow velocity of the To be admitted water (27) is made stepwise by a predetermined value.
dadurch gekennzeichnet,
dass bei einem weiteren Temperaturanstieg die Fließgeschwindigkeit des einzulassenden Wassers (27) kontinuierlich erhöht wird.A method of operating a laundry treating machine (1) according to claim 1,
characterized,
that the flow rate of the water to be introduced (27) is continuously increased in a further increase in temperature.
dadurch gekennzeichnet,
dass die vorbestimmte Fließgeschwindigkeit 1,6 bis 5 ml / sek. und die verminderte Fließgeschwindigkeit 0,3 bis 1,5 ml / sek. beträgt.Method for operating a laundry treatment machine (1) according to one of claims 1 to 5
characterized,
that the predetermined flow rate sec 1.6 to 5 ml /. and the reduced flow rate 0.3 to 1.5 ml / sec. is.
dadurch gekennzeichnet,
dass der vorbestimmte obere Grenzwert (Th) für die Temperatur etwa 160 °C bis 200°C und der untere Grenzwert (TI) etwa 100 °C bis 140 °C beträgt.Method for operating a laundry treatment machine (1) according to one of claims 1 to 5
characterized,
that the predetermined upper limit value (Th) of the temperature of about 160 ° C to 200 ° C and the lower limit value (TI) is about 100 ° C to 140 ° C.
gekennzeichnet durch eine durch die Steuereinrichtung (29) steuerbare Pumpe (21), mit der das Wasser zur Dampferzeugungseinrichtung (12) förderbar ist, wobei die Fließgeschwindigkeit im Bereich von 0,3 bis 5 ml / sek. veränderbar ist.Laundry treatment machine (1) according to claim 8,
characterized by a controllable by the control device (29) pump (21), with which the water to the steam generating means (12) is conveyed, wherein the flow rate in the range of 0.3 to 5 ml / sec. is changeable.
dadurch gekennzeichnet,
dass die durch die Pumpe (21) veränderbare Fließgeschwindigkeit mittels eines pulsweitenmodulierten Ein- und Ausschaltens der Pumpe (21) einstellbar ist.Laundry treating machine (1) according to claim 9,
characterized,
that by the pump (21) variable flow rate by means of a pulse-width modulated on and off the pump (21) is adjustable.
gekennzeichnet durch ein durch die Steuereinrichtung (29) steuerbares Einlassventil (15), mit dem das Wasser zur Dampferzeugungseinrichtung (12) zuführbar ist, wobei die Fließgeschwindigkeit im Bereich von 0,3 bis 5 ml / sek. veränderbar ist.Laundry treatment machine (1) according to claim 8,
characterized by an inlet valve (15) controllable by the control device (29), with which the water can be supplied to the steam generating device (12), the flow rate being in the range from 0.3 to 5 ml / sec. is changeable.
dadurch gekennzeichnet,
dass die Fließgeschwindigkeit stufenförmig veränderbar ist.Laundry treating machine (1) according to claim 9 or 11,
characterized,
that the flow rate is changeable stepwise.
dadurch gekennzeichnet,
dass die Fließgeschwindigkeit kontinuierlich veränderbar ist.Laundry treating machine (1) according to claim 9 or 11,
characterized,
that the flow rate is continuously variable.
dadurch gekennzeichnet,
dass die Dampferzeugungseinrichtung (12) zur Wärmespeicherung eine Masse (26a) besitzt, die vom Heizkörper (26) erhitzbar ist.Laundry treatment machine (1) according to claim 8,
characterized,
that the steam generating means (12) for heat storage mass (26a) which the radiator (26) is heatable.
dadurch gekennzeichnet,
dass die Masse aus einem Alublock (26a) mit einem Gewicht von 300 bis 800 g gebildet ist und dass der Heizkörper (26) eine Heizleistung von etwa 0, 5 bis 1,2 KW besitzt.Laundry treating machine (1) according to claim 14,
characterized,
in that the mass is formed from an aluminum block (26a) with a weight of 300 to 800 g and that the heating body (26) has a heating power of approximately 0.5 to 1.2 KW.
dadurch gekennzeichnet,
dass die Masse 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.Laundry treating machine (1) according to claim 14,
characterized,
in that the mass is formed from an aluminum block (26a) with a weight of 300 to 800 g and that the heating body (26) has a heating power of approximately 1.3 to 2.1 KW.
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EP (1) | EP2006432B1 (en) |
AT (1) | ATE530693T1 (en) |
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JP3936639B2 (en) * | 2002-06-05 | 2007-06-27 | 松下電器産業株式会社 | High frequency heating device |
KR101215347B1 (en) * | 2005-08-29 | 2012-12-26 | 엘지전자 주식회사 | steam generator for drum washing machine and control method as the same |
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2007
- 2007-06-19 DE DE102007028618A patent/DE102007028618A1/en not_active Withdrawn
-
2008
- 2008-06-13 AT AT08010758T patent/ATE530693T1/en active
- 2008-06-13 EP EP08010758A patent/EP2006432B1/en active Active
- 2008-06-13 PL PL08010758T patent/PL2006432T3/en unknown
- 2008-06-13 ES ES08010758T patent/ES2371788T3/en active Active
- 2008-06-17 US US12/140,536 patent/US8161662B2/en not_active Expired - Fee Related
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EP1464751A1 (en) | 2003-03-31 | 2004-10-06 | Lg Electronics Inc. | Steam jet drum washing machine |
EP1655408A1 (en) | 2004-11-05 | 2006-05-10 | Samsung Electronics Co., Ltd. | Washing machine |
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EP1813709A2 (en) | 2006-01-26 | 2007-08-01 | Samsung Electronics Co., Ltd. | Washing machine having steam generator and method for controlling the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2267209A1 (en) | 2009-06-25 | 2010-12-29 | Miele & Cie. KG | Steam production device for a laundry treatment machine and laundry treatment machine |
EP2826909A1 (en) * | 2013-07-19 | 2015-01-21 | Electrolux Appliances Aktiebolag | Method for operating a steam generation unit in a laundry dryer and method of operating a laundry dryer |
EP2883992A1 (en) * | 2013-12-12 | 2015-06-17 | LG Electronics Inc. | Fabric treatment apparatus and control method thereof |
US9809920B2 (en) | 2013-12-12 | 2017-11-07 | Lg Electronics Inc. | Fabric treatment apparatus and control method thereof |
Also Published As
Publication number | Publication date |
---|---|
PL2006432T3 (en) | 2012-02-29 |
DE102007028618A1 (en) | 2009-01-02 |
US20080313920A1 (en) | 2008-12-25 |
EP2006432A3 (en) | 2010-12-22 |
ATE530693T1 (en) | 2011-11-15 |
EP2006432B1 (en) | 2011-10-26 |
ES2371788T3 (en) | 2012-01-10 |
US8161662B2 (en) | 2012-04-24 |
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