EP4211299A1 - Method for operating an automatic washing machine, and automatic washing machine - Google Patents

Method for operating an automatic washing machine, and automatic washing machine

Info

Publication number
EP4211299A1
EP4211299A1 EP21772747.8A EP21772747A EP4211299A1 EP 4211299 A1 EP4211299 A1 EP 4211299A1 EP 21772747 A EP21772747 A EP 21772747A EP 4211299 A1 EP4211299 A1 EP 4211299A1
Authority
EP
European Patent Office
Prior art keywords
drum
laundry
control
washing machine
regulating device
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.)
Pending
Application number
EP21772747.8A
Other languages
German (de)
French (fr)
Inventor
Dirk Sieding
Rainer Bicker
Magnus Kortenjann
Markus Drücker
Steffen Lasner
Benedikt Fechtel
Marcel Zielke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4211299A1 publication Critical patent/EP4211299A1/en
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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
    • D06F33/65—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing phases, e.g. for smoothing or removing creases
    • 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 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206—Mounting of motor
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/06—Type or material
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2103/68—Operation mode; Program phase
    • 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
    • D06F2105/40—Conditioning or finishing, e.g. control of perfume injection using water or steam
    • 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
    • D06F2105/48—Drum speed
    • 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
    • D06F2105/54—Changing between normal operation mode and special operation modes, e.g. service mode, component cleaning mode or stand-by mode

Definitions

  • the invention relates to a method for operating a washing machine and a washing machine.
  • the invention relates to a method for operating a washing machine with a tub for holding water, a drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device, the method including a pre-ironing phase for Pre-ironing of the laundry located in the drum, and the corresponding washing machines.
  • the pre-ironing phase the laundry is de-creased by exposing it to steam.
  • the pre-ironing phase ensures that the laundry is de-creased.
  • the degree of wrinkling subjectively perceived by a user of the wrinkled laundry i.e. laundry subjected to the pre-ironing phase
  • this form of wrinkle removal is very energy-intensive, because the desired effect can only be achieved with high temperatures and long exposure times.
  • the invention therefore addresses the problem of providing a method for operating an automatic washing machine and an automatic washing machine that minimizes or avoids the degree of creases in laundry with minimal energy consumption.
  • the advantages that can be achieved with the invention consist in the fact that this leads to a considerable simplification and minimization of the ironing effort.
  • the process is optimized in such a way that the laundry is wearable again after a relatively short preparation time.
  • the laundry is one or more textiles such as shirts or blouses.
  • the invention relates to a method for operating a washing machine with a tub for holding water, a ribless drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device, the method including a pre-ironing phase for Pre-ironing of the laundry in the drum, in which steam is fed into the drum and in which the drum is set in a right-left oscillating movement with the aid of the motor, the oscillating rhythm of which is controlled or regulated with the aid of the control or regulating device that the drum is at least temporarily untouched by the laundry.
  • the laundry can include one or more textiles.
  • the textile or textiles such as one or more shirts, are made to fly by the rhythm of the pendulum.
  • the steam can flow through the laundry and keep it suspended.
  • the significantly reduced idle times or breaks prevent or reduce the formation of creases, which are mainly caused by long idle times.
  • the barrier-free drum which is ribless and has no laundry catches, ensures a perfect trajectory of the laundry.
  • the use of steam also promotes the decrease of the laundry, so that the laundry relaxes on a heated air flow, so to speak. Because the drum is ribless, the creasing effect caused by the tangs commonly found in the drum is avoided. Rather, since the drum is designed without ribs or drivers, it is barrier-free for a floating condition of the laundry in the drum.
  • a ribless drum is a drum that does not have a rib or flight inside it. However, it can have other elevations and/or depressions that do not have the shape of the plate-shaped rib or driver.
  • the drum preferably the drum casing, preferably has indentations and/or elevations other than a rib. It preferably has honeycombs, each of which is designed as an elevation or depression.
  • the pre-ironing phase can be implemented, for example, by means of a selectable “pre-ironing” option, which treats the laundry after a washing program has been carried out, in order to minimize subsequent ironing effort.
  • the “pre-ironing” option is preferably stored in the washing machine and can be selected by the user together with a washing program stored in the washing machine.
  • the pre-ironing phase can be implemented by means of a washing program stored in the automatic washing machine, in which laundry is refreshed and uncreased when it is dry, so that the laundry is wearable again after the program has been carried out.
  • a washing program is stored in the washing machine, for example, with the designation “Refresh” and can be selected by the user.
  • the expression “that the drum is at least temporarily untouched by the laundry” should preferably be understood to mean that the laundry does not touch the drum for a predetermined time, but instead floats in the drum without being touched. This prevents the laundry from lying on the drum. This floating condition of the laundry is achieved in particular by the combination of the ribless drum, the oscillating movement of the drum and the introduction of steam.
  • the control or regulating device preferably controls or regulates the oscillation rhythm as a function of the type of laundry.
  • the trajectory of the laundry depends on the weight of the laundry and thus also on the type of laundry.
  • Relatively heavy types of laundry, such as jeans, are preferably operated with a higher pendulum deflection than relatively light types of laundry. This ensures that the laundry items are always kept in a certain floating state.
  • the control or regulating device can, for example, determine the type of laundry based on the selected and started washing program. For example, a type of laundry is assigned to each of the washing programs stored in the washing machine.
  • the wash program "Whites 60°C” or “Cottons 90°C” is assigned the laundry type cotton
  • the wash program "Delicates 30°C” is assigned the laundry type shirt and/or blouse.
  • the control or regulating device can also prompt the user to enter the type of laundry via a keyboard or a touch display before starting the washing program and/or to select a type of laundry displayed to him by the washing machine.
  • control or regulating device controls or regulates the pendulum rhythm in such a way that it is varied as a function of a period of time. It is preferably taken into account here that the residual moisture content of the laundry varies over the period of time. For example, the variation in residual moisture over time can be determined using model tests, so that a predetermined variation in the pendulum rhythm over time is stored in the control or regulating device.
  • the control or regulating device preferably controls or regulates the oscillation rhythm as a function of the residual moisture in the laundry.
  • the trajectory of the laundry depends on the relative humidity, and the oscillating rhythm is adjusted to the residual moisture in order to achieve an optimal trajectory.
  • the laundry becomes heavier over the course of the pre-ironing phase, and the residual moisture content of the laundry increases. This increase in weight has a preferential effect on the deflection of the pendulum rhythms.
  • control or regulating device controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater is, the heavier a type of laundry is. This further optimizes the trajectory of the laundry, taking into account the type of laundry and its dependent weight.
  • control or regulating device controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater, the longer the period of time.
  • control or regulating device controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater, the greater the residual moisture content of the laundry. This further ensures that the laundry is always kept in a predetermined floating state. The residual moisture increases during the pre-ironing phase and over time due to the steaming of the laundry, which therefore becomes heavier and heavier.
  • the control or regulating device preferably determines the residual moisture as a function of time. This increase is generally linear and depends on the type of laundry.
  • the steam is fed into the drum from below, based on an operational set-up position of the washing machine.
  • the warm air flowing up from below flows through the laundry and continues to support its floating state in the drum.
  • the control or regulating device preferably controls or regulates a maximum pendulum deflection of the pendulum rhythm as a function of a maximum speed of the drum, with which the drum is rotated to the maximum during the pre-ironing phase.
  • the maximum speed is preferably in the range from 60 to 120 rpm .
  • a relatively high temperature of the steam is not necessary, especially for textiles with a high synthetic content, the creasing of the laundry is largely reduced by the pendulum rhythm.
  • the disordered fiber state or creases are brought back to their original order by the laundry floating in the drum during the pre-ironing phase. It was found that a steam temperature of ⁇ 50°C is sufficient to decrease the laundry.
  • a steam temperature of ⁇ 50° C. is preferred during the pre-ironing phase. Due to this relatively low temperature, there is no condensation on a door sight glass of the washing machine in the case of a front loader with a door sight glass. This is particularly advantageous for dry laundry that is undergoing refreshment because water stains will not form on it. Furthermore, less energy is required for steaming the laundry during the pre-ironing phase.
  • a steam module for example, can be used to generate the steam.
  • the steam generation can be realized by a heater below the drum is arranged and is designed to generate steam during the pre-ironing phase via a T also boiler principle. This is realized, for example, in that a water level in the tub is appropriately controlled or regulated during the pre-ironing phase.
  • the invention also relates to a washing machine with a tub for holding water, a ribless drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device that is set up and designed according to a method to control or regulate one or more of the embodiments described above.
  • the washing machine can be designed as a washing machine or as a combination device such as a washer-dryer. Preferred embodiments and advantages described for the method apply correspondingly to the washing machine.
  • FIG. 1 shows a partial cross-sectional view of an automatic washing machine according to the invention
  • FIG. 2 shows a wash program stored in the automatic washing machine shown in FIG. 1 as a diagram over time.
  • Fig. 1 shows a partial cross-sectional view of a washing machine according to the invention.
  • the washing machine has a tub 1 for holding water (not shown), a ribless drum 2 rotatably mounted in the tub 1 for holding laundry 8 and a motor 3 for driving the drum 2 .
  • the washing machine also has a dispenser 6, which can optionally contain a treatment agent such as washing powder, and which is connected to the tub 1 so that water can be let into the tub 1 and into the drum 2 via it.
  • the drum 2 has a large number of drum openings (not shown) for perfusion.
  • the washing machine also has a drain device 5 in order to be able to remove the water 7 from the tub 1 .
  • the drain device 5 has a drain pipe 5a, which connects the tub 1 to a drain pump 5b, which in turn is connected to a drain line 5c, which usually opens into a sewer.
  • the washing machine also has a control or regulating device 4 which is designed to control or regulate the motor 3, a water inlet and outlet, the execution of a washing program and the like.
  • a washing program shown in FIG. 2 is used to wash and unwrinkle laundry 8 located in drum 2 accomplished.
  • the laundry 8 can also be treated for unwrapping using a washing program in which the dry laundry 8 placed by the user in the drum 2 is steamed by directing steam into the drum and in which the drum 2 is rotated with the aid of the motor 3 in a Right-left pendulum movement is offset, the pendulum rhythm of which is controlled or regulated with the aid of the control or regulating device 4 in such a way that the drum 2 is at least temporarily unaffected by the laundry 8.
  • FIG. 2 shows a wash program stored in the automatic washing machine shown in FIG. 1 as a diagram over time.
  • the individual phases within the washing program ms Wp are shown on the time axis t.
  • the program sequence Wp shown here includes a detection phase Er, a washing phase Wa, a rinsing phase Sp, a spin phase Sc and a pre-ironing phase Vb.
  • the batch of laundry is recorded in the detection phase Er, in which a load quantity of laundry in the drum is recorded.
  • water is let in via the flush-in dispenser, as a result of which a treatment agent stored therein, such as washing powder, is let into the tub.
  • a heating section Hz in which the water is heated by means of a switched-on heater of the washing machine to a temperature that is specified by the control or regulating device from the selected washing program Wp.
  • the heating element is switched off and a so-called post-wash section Na follows.
  • this post-wash section Na the laundry is moved by means of a rotating drum, with the water cooling down.
  • the washing phase Wa ends with the pumping out, with the drain device, in particular the drain pump, being activated.
  • the rinsing phase Sp in which water is again let into the tub and the laundry is moved therein in order to rinse the laundry.
  • the rinsing water is pumped out, followed by the final spin cycle Sc for draining the laundry.
  • the drum is rotated at a higher speed than in the washing process, at which the laundry rests against the drum shell and the water is thrown out of the laundry through the drum openings due to the centrifugal force.
  • the drain device is activated here, so that the water is removed from the tub.
  • steam is fed into the drum and the drum is set in a right-left oscillating motion with the aid of the motor, the oscillating rhythm of which is controlled or regulated with the aid of the control or regulating device in such a way that the drum is at least temporarily clear of the laundry is untouched. This dewrinkles the laundry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention relates to a method for operating an automatic washing machine comprising an outer tub (1) for receiving water, a rib-free drum (2) which is rotatably mounted in the outer tub (1) for receiving laundry (8), a motor (3) for driving the drum (2), and a control or regulating device (4). The method has a pre-ironing phase (Vb) for pre-ironing the laundry (8) located in the drum (2), wherein vapor is conducted into the drum (2), and the drum (2) is displaced in a right-left pendular movement using the motor (3), the pendular rhythm of said movement being controlled or regulated by the control or regulating device (4) such that the drum (2) is at least temporarily not in contact with the laundry (8). The invention also relates to a corresponding automatic washing machine.

Description

Beschreibung description
Verfahren zum Betreiben eines Waschautomaten und Waschautomat Method for operating a washing machine and automatic washing machine
Die Erfindung betrifft ein Verfahren zum Betreiben eines Waschautomaten und einen Waschautomaten. Insbesondere betrifft die Erfindung ein Verfahren zum Betreiben eines Waschautomaten mit einem Laugenbehälter zur Aufnahme von Wasser, einer in dem Laugenbehälter drehbar gelagerten T rommel zur Aufnahme von Wäsche, einem Motor zum Antreiben der Trommel und einer Steuer- oder Regeleinrichtung, wobei das Verfahren eine Vorbügelphase zum Vorbügeln der sich in der Trommel befindenden Wäsche aufweist, und den entsprechenden Waschautomaten. In der Vorbügelphase wird die Wäsche entknittert, wobei sie Dampf ausgesetzt wird. The invention relates to a method for operating a washing machine and a washing machine. In particular, the invention relates to a method for operating a washing machine with a tub for holding water, a drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device, the method including a pre-ironing phase for Pre-ironing of the laundry located in the drum, and the corresponding washing machines. In the pre-ironing phase, the laundry is de-creased by exposing it to steam.
Die Vorbügelphase sorgt für eine Entknitterung der Wäsche. Nach der Entknitterung ist der von einem Nutzer subjektiv wahrgenommene Verknitterungsgrad der entknitterten Wäsche d.h. der Vorbügelphase unterzogenen Wäsche im Vergleich zu nicht entknitterter Wäsche d.h. Wäsche, die nicht der Vorbügelphase unterzogen worden ist, deutlich reduziert. Doch ist diese Form der Entknitterung sehr energieaufwändig, denn nur durch hohe Temperaturen und lange Einwirkzeiten ist der gewünschte Effekt zu erreichen. The pre-ironing phase ensures that the laundry is de-creased. After the wrinkle removal, the degree of wrinkling subjectively perceived by a user of the wrinkled laundry, i.e. laundry subjected to the pre-ironing phase, is significantly reduced in comparison to non-wrinkled laundry, i.e. laundry which has not been subjected to the pre-ironing phase. However, this form of wrinkle removal is very energy-intensive, because the desired effect can only be achieved with high temperatures and long exposure times.
Der Erfindung stellt sich somit das Problem, ein Verfahren zum Betreiben eines Waschautomaten und einen Waschautomaten bereit zu stellen, die den Verknitterungsgrad von Wäsche bei minimalem Energieaufwand minimiert oder vermeidet. The invention therefore addresses the problem of providing a method for operating an automatic washing machine and an automatic washing machine that minimizes or avoids the degree of creases in laundry with minimal energy consumption.
Erfindungsgemäß wird dieses Problem durch ein Verfahren mit den Merkmalen des Patentanspruchs 1 und einen Waschautomaten mit den Merkmalen des Patentanspruchs 10 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen. According to the invention, this problem is solved by a method having the features of patent claim 1 and a washing machine having the features of patent claim 10 . Advantageous refinements and developments of the invention result from the following dependent claims.
Die mit der Erfindung erreichbaren Vorteile bestehen neben einer Vermeidung oder Minimierung einer Entstehung von verknitterten Textilien in einem Waschprozess darin, dass dies zu einer erheblichen Erleichterung und Minimierung eines Bügelaufwandes führt. Bei einer Auffrischung von Wäsche ist der Prozess so optimiert, dass die Wäsche nach einer relativ kurzen Aufbereitungszeit wieder tragefähig ist. Bei der Wäsche handelt es sich um ein oder mehrere Textilien wie beispielsweise Hemden oder Blusen. In addition to avoiding or minimizing the formation of creased textiles in a washing process, the advantages that can be achieved with the invention consist in the fact that this leads to a considerable simplification and minimization of the ironing effort. When freshening up laundry, the process is optimized in such a way that the laundry is wearable again after a relatively short preparation time. The laundry is one or more textiles such as shirts or blouses.
Die Erfindung betrifft ein Verfahren zum Betreiben eines Waschautomaten mit einem Laugenbehälter zur Aufnahme von Wasser, einer in dem Laugenbehälter drehbar gelagerten, rippenlosen Trommel zur Aufnahme von Wäsche, einem Motor zum Antreiben der Trommel und einer Steuer- oder Regeleinrichtung, wobei das Verfahren eine Vorbügelphase zum Vorbügeln der sich in der Trommel befindenden Wäsche aufweist, bei dem Dampf in die Trommel geleitet wird und bei dem die Trommel mit Hilfe des Motors in eine Rechts-Links- Pendelbewegung versetzt wird, deren Pendelrhythmus mit Hilfe der Steuer- oder Regeleinrichtung derart gesteuert oder geregelt wird, dass die Trommel zumindest zeitweise von der Wäsche unberührt ist. The invention relates to a method for operating a washing machine with a tub for holding water, a ribless drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device, the method including a pre-ironing phase for Pre-ironing of the laundry in the drum, in which steam is fed into the drum and in which the drum is set in a right-left oscillating movement with the aid of the motor, the oscillating rhythm of which is controlled or regulated with the aid of the control or regulating device that the drum is at least temporarily untouched by the laundry.
Durch die Einführung des Pendelwaschrhythmus ist es möglich einen schnellen Richtungswechsel der Trommel zu generieren. Dadurch können Liegezeiten der Wäsche in der Trommel minimiert und die Wäsche in einen "schwebenden" Zustand versetzt werden. Die Wäsche kann ein oder mehrere Textilien umfassen. Das oder die Textilien wie ein oder mehrere Hemden werden durch den Pendelrhythmus zum Fliegen gebracht. Die Wäsche kann durch den Dampf durchströmt und in Schwebe gehalten werden. Die deutlich reduzierten Liegezeiten bzw. Pausen verhindern oder vermindern die Entstehung von Knitter, die hauptsächlich durch lange Liegezeiten entstehen. Durch die barrierefreie Trommel, die rippenlos ist und keine Wäschemitnehmer aufweist, wird eine einwandfreie Flugbahn der Wäsche gewährleistet. Durch den Einsatz von Dampf wird die Entknitterung der Wäsche zusätzlich gefördert, so dass die Wäsche auf einem aufgewärmten Luftstrom sozusagen entspannt. Dadurch, dass die Trommel rippenlos ist, wird eine zu mehr Knitter führende Wirkung, die von den üblicherweise in der Trommel vorhandenen Mitnehmern hervorgerufen wird, verhindert. Vielmehr ist die Trommel, da rippen- bzw. mitnehmerlos ausgestaltet, für einen schwebenden Zustand der Wäsche in der Trommel barrierefrei ausgebildet. With the introduction of the pendulum washing rhythm, it is possible to generate a quick change in direction of the drum. This minimizes the time the laundry lies in the drum and puts the laundry in a "floating" state. The laundry can include one or more textiles. The textile or textiles, such as one or more shirts, are made to fly by the rhythm of the pendulum. The steam can flow through the laundry and keep it suspended. The significantly reduced idle times or breaks prevent or reduce the formation of creases, which are mainly caused by long idle times. The barrier-free drum, which is ribless and has no laundry catches, ensures a perfect trajectory of the laundry. The use of steam also promotes the decrease of the laundry, so that the laundry relaxes on a heated air flow, so to speak. Because the drum is ribless, the creasing effect caused by the tangs commonly found in the drum is avoided. Rather, since the drum is designed without ribs or drivers, it is barrier-free for a floating condition of the laundry in the drum.
Eine rippenlose Trommel ist eine Trommel, die keine Rippe bzw. Mitnehmer in ihrem Inneren aufweist. Sie kann aber andere Erhebungen und/oder Vertiefungen aufweisen, die nicht die Form der plattenförmigen Rippe bzw. des Mitnehmers aufweisen. Die Trommel bevorzugt der Trommelmantel weist bevorzugt andere als eine Rippe ausgebildete Vertiefungen und/oder Erhebungen auf. Bevorzugt weist sie Waben auf, die jeweils als Erhöhung oder Vertiefung ausgebildet sind. A ribless drum is a drum that does not have a rib or flight inside it. However, it can have other elevations and/or depressions that do not have the shape of the plate-shaped rib or driver. The drum, preferably the drum casing, preferably has indentations and/or elevations other than a rib. It preferably has honeycombs, each of which is designed as an elevation or depression.
Die Vorbügelphase kann beispielsweise mittels einer anwählbaren Option "Vorbügeln" realisiert sein, die Wäsche nach der Durchführung eines Waschprogramms nachbehandelt, um einen im Anschluss folgenden Bügelaufwand zu minimieren. Die Option „Vorbügeln“ ist bevorzugt in dem Waschautomaten hinterlegt und kann vom Nutzer zusammen mit einem in dem Waschautomaten hinterlegten Waschprogramm angewählt werden. The pre-ironing phase can be implemented, for example, by means of a selectable “pre-ironing” option, which treats the laundry after a washing program has been carried out, in order to minimize subsequent ironing effort. The “pre-ironing” option is preferably stored in the washing machine and can be selected by the user together with a washing program stored in the washing machine.
Alternativ oder zusätzlich kann die Vorbügelphase mittels eines in dem Wachautomaten hinterlegten Waschprogramms realisiert sein, bei dem Wäsche in trockenem Zustand aufgefrischt und entknittert wird, so dass die Wäsche nach Programmdurchführung wieder tragefähig ist. Solch ein Waschprogramm ist beispielsweise mit der Bezeichnung „Auffrischen“ im Waschautomaten hinterlegt und von Nutzer anwählbar. Unter dem Ausdruck „dass die Trommel zumindest zeitweise von der Wäsche unberührt ist“ ist bevorzugt zu verstehen, dass die Wäsche die Trommel über eine vorbestimmte Zeit nicht berührt, sondern in der Trommel diese unberührend schwebt. Dadurch wird ein Aufliegen der Wäsche auf der Trommel unterbunden. Dieser Schwebezustand der Wäsche wird insbesondere durch die Kombination der rippenlosen Trommel, der Pendelbewegung der Trommel und des Einleitens von Dampf erreicht. Alternatively or additionally, the pre-ironing phase can be implemented by means of a washing program stored in the automatic washing machine, in which laundry is refreshed and uncreased when it is dry, so that the laundry is wearable again after the program has been carried out. Such a washing program is stored in the washing machine, for example, with the designation “Refresh” and can be selected by the user. The expression “that the drum is at least temporarily untouched by the laundry” should preferably be understood to mean that the laundry does not touch the drum for a predetermined time, but instead floats in the drum without being touched. This prevents the laundry from lying on the drum. This floating condition of the laundry is achieved in particular by the combination of the ribless drum, the oscillating movement of the drum and the introduction of steam.
Bevorzugt steuert oder regelt die Steuer- oder Regeleinrichtung den Pendelrhythmus in Abhängigkeit von einer Art der Wäsche. Die Flugbahn der Wäsche ist abhängig von einem Wäschegewicht und damit auch von einer Wäscheart. Relativ schwere Wäschearten, wie z.B. Jeans, werden bevorzugt mit einer höheren Pendelauslenkung betrieben als relativ leichte Wäschearten. Dadurch wird gewährleistet, dass die Wäschestücke immer in einem gewissen schwebenden Zustand gehalten werden. Wenn der Nutzer ein Waschprogramm zum Waschen der sich in der Trommel befindlichen Wäsche anwählt und startet, kann die Steueroder Regeleinrichtung beispielsweise die Wäscheart anhand des angewählten und gestarteten Waschprogramms bestimmen. Beispielsweise sind den in der Waschmaschine hinterlegten Waschprogrammen jeweils eine Wäscheart zugeordnet. Z.B. ist dem Waschprogramm „Kochwäsche 60°C“ oder „Baumwolle 90°C“ die Wäscheart Baumwolle zugeordnet, während dem Waschprogramm „Feinwäsche 30°C“ die Wäscheart Hemd und/oder Bluse zugeordnet ist. Optional kann die Steuer- oder Regeleinrichtung den Nutzer auch auffordern, die Wäscheart vor Starten des Waschprogramms über eine Tastatur oder ein Touchdisplay einzugeben und/oder eine ihm vom Waschautomaten angezeigte Wäscheart auszuwählen. The control or regulating device preferably controls or regulates the oscillation rhythm as a function of the type of laundry. The trajectory of the laundry depends on the weight of the laundry and thus also on the type of laundry. Relatively heavy types of laundry, such as jeans, are preferably operated with a higher pendulum deflection than relatively light types of laundry. This ensures that the laundry items are always kept in a certain floating state. If the user selects and starts a washing program for washing the laundry located in the drum, the control or regulating device can, for example, determine the type of laundry based on the selected and started washing program. For example, a type of laundry is assigned to each of the washing programs stored in the washing machine. For example, the wash program "Whites 60°C" or "Cottons 90°C" is assigned the laundry type cotton, while the wash program "Delicates 30°C" is assigned the laundry type shirt and/or blouse. Optionally, the control or regulating device can also prompt the user to enter the type of laundry via a keyboard or a touch display before starting the washing program and/or to select a type of laundry displayed to him by the washing machine.
In einer bevorzugten Ausführungsform steuert oder regelt die Steuer- oder Regeleinrichtung den Pendelrhythmus derart, dass er in Abhängigkeit von einer Zeitdauer variiert wird. Hierbei wird bevorzugt berücksichtigt, dass die Restfeuchte der Wäsche über die Zeitdauer variiert. Beispielsweise kann die Variation der Restfeuchte über die Zeitdauer anhand von Modellversuchen festgestellt worden sein, so dass eine vorbestimmte Variation des Pendelrhythmus über die Zeitdauer in der Steuer- oder Regeleinrichtung hinterlegt ist. In a preferred embodiment, the control or regulating device controls or regulates the pendulum rhythm in such a way that it is varied as a function of a period of time. It is preferably taken into account here that the residual moisture content of the laundry varies over the period of time. For example, the variation in residual moisture over time can be determined using model tests, so that a predetermined variation in the pendulum rhythm over time is stored in the control or regulating device.
Bevorzugt steuert oder regelt die Steuer- oder Regeleinrichtung den Pendelrhythmus in Abhängigkeit von einer Restfeuchte der Wäsche. Die Flugbahn der Wäsche hängt von der Rechtfeuchte ab, und der Pendelrhythmus wird an die Restfeuchte angepasst, um eine optimale Flugbahn zu erreichen. Durch die Bedampfung wird die Wäsche im zeitlichen Verlauf der Vorbügelphase schwerer, und die Restfeuchte der Wäsche steigt. Diese Gewichtszunahme wirkt sich bevorzugt auf die Auslenkung der Pendelrhythmen aus. The control or regulating device preferably controls or regulates the oscillation rhythm as a function of the residual moisture in the laundry. The trajectory of the laundry depends on the relative humidity, and the oscillating rhythm is adjusted to the residual moisture in order to achieve an optimal trajectory. As a result of the steaming, the laundry becomes heavier over the course of the pre-ironing phase, and the residual moisture content of the laundry increases. This increase in weight has a preferential effect on the deflection of the pendulum rhythms.
In einer bevorzugten Ausführungsform steuert oder regelt die Steuer- oder Regeleinrichtung den Pendelrhythmus derart, dass eine Pendelauslenkung des Pendelrhythmus desto größer ist, je schwerer eine Art der Wäsche ist. Dadurch wird die Flugbahn der Wäsche weiterhin optimiert, wobei die Wäscheart und deren von ihr abhängiges Gewicht berücksichtigt werden.In a preferred embodiment, the control or regulating device controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater is, the heavier a type of laundry is. This further optimizes the trajectory of the laundry, taking into account the type of laundry and its dependent weight.
Alternativ oder zusätzlich bevorzugt steuert oder regelt die Steuer- oder Regeleinrichtung den Pendelrhythmus derart, dass eine Pendelauslenkung des Pendelrhythmus desto größer ist, je länger die Zeitdauer ist. Alternativ oder zusätzlich bevorzugt steuert oder regelt die Steueroder Regeleinrichtung den Pendelrhythmus derart, dass eine Pendelauslenkung des Pendelrhythmus desto größer ist, desto größer die Restfeuchte der Wäsche ist. Dadurch wird weiterhin gewährleistet, dass die Wäsche immer in einem vorbestimmten schwebenden Zustand gehalten wird. Die Restfeuchte steigt während der Vorbügelphase und über die Zeitdauer aufgrund der Bedampfung der Wäsche, die daher immer schwerer wird. Alternatively or additionally preferably, the control or regulating device controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater, the longer the period of time. Alternatively or additionally preferably, the control or regulating device controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater, the greater the residual moisture content of the laundry. This further ensures that the laundry is always kept in a predetermined floating state. The residual moisture increases during the pre-ironing phase and over time due to the steaming of the laundry, which therefore becomes heavier and heavier.
Bevorzugt bestimmt die Steuer- oder Regeleinrichtung die Restfeuchte über eine Funktion der Zeit. Diese Erhöhung ist im Allgemeinen linear und abhängig von der Wäscheart. The control or regulating device preferably determines the residual moisture as a function of time. This increase is generally linear and depends on the type of laundry.
In einer bevorzugten Ausführungsform wird der Dampf von unten in die Trommel geleitet, bezogen auf eine betriebsgemäße Aufstellposition des Waschautomaten. Dadurch wird die Wäsche durch die von unten aufströmende warme Luft durchströmt und ihr Schwebezustand in der Trommel weiterhin unterstützt. In a preferred embodiment, the steam is fed into the drum from below, based on an operational set-up position of the washing machine. As a result, the warm air flowing up from below flows through the laundry and continues to support its floating state in the drum.
Bevorzugt steuert oder regelt die Steuer- oder Regeleinrichtung eine maximale Pendelauslenkung des Pendelrhythmus in Abhängigkeit einer maximalen Drehzahl der Trommel, mit der die Trommel während der Vorbügelphase maximal gedreht wird. Die maximale Drehzahl liegt bevorzugt im Bereich von 60 bis 120 min-1. The control or regulating device preferably controls or regulates a maximum pendulum deflection of the pendulum rhythm as a function of a maximum speed of the drum, with which the drum is rotated to the maximum during the pre-ironing phase. The maximum speed is preferably in the range from 60 to 120 rpm .
Eine relativ hohe Temperatur des Dampfes ist insbesondere für Textilien mit hohem synthetischen Anteil nicht erforderlich, die Verknitterung der Wäsche wird schon durch den Pendelrhythmus größtenteils reduziert. Der ungeordnete Faserzustand bzw. Knitter wird durch das Schweben der Wäsche in der Trommel während der Vorbügelphase wieder in den geordneten Ausgangszustand gebracht. Es wurde festgestellt, dass eine Temperatur des Dampfes < 50°C zur Entknitterung der Wäsche ausreichend ist. Bevorzugt ist eine Temperatur des Dampfes < 50°C während der Vorbügelphase. Durch diese relativ niedrige Temperatur kommt es zu keiner Kondensation an einem Türschauglas des Waschautomaten im Fall eines Frontladers mit Türschauglas. Das ist insbesondere für trockene Wäsche von Vorteil, die dem Auffrischen unterzogen wird, weil sich dann keine Wasserflecken auf ihr bilden. Desweiteren wird ein niedriger Energieaufwand für die Bedampfung der Wäsche während der Vorbügelphase benötigt. A relatively high temperature of the steam is not necessary, especially for textiles with a high synthetic content, the creasing of the laundry is largely reduced by the pendulum rhythm. The disordered fiber state or creases are brought back to their original order by the laundry floating in the drum during the pre-ironing phase. It was found that a steam temperature of < 50°C is sufficient to decrease the laundry. A steam temperature of <50° C. is preferred during the pre-ironing phase. Due to this relatively low temperature, there is no condensation on a door sight glass of the washing machine in the case of a front loader with a door sight glass. This is particularly advantageous for dry laundry that is undergoing refreshment because water stains will not form on it. Furthermore, less energy is required for steaming the laundry during the pre-ironing phase.
Zur Erzeugung des Dampfes kann beispielsweise ein Dampfmodul eingesetzt werden. A steam module, for example, can be used to generate the steam.
Alternativ kann die Dampferzeugung durch einen Heizkörper realisiert werden, der unterhalb der T rommel angeordnet ist und ausgebildet ist, über ein T auchsiederprinzip Dampf während er Vorbügelphase zu erzeugen. Dies wird beispielsweise dadurch realisiert, dass ein Wasserstand im Laugenbehälter während der Vorbügelphase entsprechend gesteuert oder geregelt wird. Alternatively, the steam generation can be realized by a heater below the drum is arranged and is designed to generate steam during the pre-ironing phase via a T also boiler principle. This is realized, for example, in that a water level in the tub is appropriately controlled or regulated during the pre-ironing phase.
Die Erfindung betrifft ferner einen Waschautomaten mit einem Laugenbehälter zur Aufnahme von Wasser, einer in dem Laugenbehälter drehbar gelagerten, rippenlosen Trommel zur Aufnahme von Wäsche, einem Motor zum Antreiben der Trommel und einer Steuer- oder Regeleinrichtung, die eingerichtet und ausgebildet ist, ein Verfahren nach einer oder mehreren der vorangehend beschriebenen Ausführungsformen zu steuern oder zu regeln.The invention also relates to a washing machine with a tub for holding water, a ribless drum rotatably mounted in the tub for holding laundry, a motor for driving the drum and a control or regulating device that is set up and designed according to a method to control or regulate one or more of the embodiments described above.
Der Waschautomat kann als Waschmaschine oder als Kombigerät wie ein Waschtrockner ausgebildet sein. Zu dem Verfahren beschriebene bevorzugte Ausführungsformen und Vorteile gelten für den Waschautomaten entsprechend. The washing machine can be designed as a washing machine or as a combination device such as a washer-dryer. Preferred embodiments and advantages described for the method apply correspondingly to the washing machine.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows
Fig. 1 eine Teil-Querschnittsansicht eines erfindungsgemäßen Waschautomaten; und Fig. 2 ein in dem in Fig. 1 gezeigten Waschautomaten hinterlegtes Waschprogramm als Diagramm im zeitlichen Ablauf. 1 shows a partial cross-sectional view of an automatic washing machine according to the invention; and FIG. 2 shows a wash program stored in the automatic washing machine shown in FIG. 1 as a diagram over time.
Fig. 1 zeigt eine Teil-Querschnittsansicht eines erfindungsgemäßen Waschautomaten. Der Waschautomat weist einen Laugenbehälter 1 zur Aufnahme von Wasser (nicht gezeigt), eine in dem Laugenbehälter 1 drehbar gelagerte, rippenlose Trommel 2 zur Aufnahme von Wäsche 8 und einen Motor 3 zum Antreiben der T rommel 2 auf. Der Waschautomat weist ferner einen Einspülkasten 6 auf, der ggf. ein Behandlungsmittel wie Waschpulver, enthalten kann und der mit dem Laugenbehälter 1 verbunden ist, so dass über ihn Wasser in den Laugenbehälter 1 und in die Trommel 2 eingelassen werden kann. Die Trommel 2 weist eine Vielzahl von Trommelöffnungen (nicht gezeigt) zur Durchflutung auf. Ferner weist der Waschautomat eine Ablaufeinrichtung 5 auf, um das Wasser 7 aus dem Laugenbehälter 1 entfernen zu können. Die Ablaufeinrichtung 5 weist ein Ablaufrohr 5a auf, das den Laugenbehälter 1 mit einer Ablaufpumpe 5b verbindet, die wiederum mit einer Ablaufleitung 5c verbunden ist, die in der Regel in einen Abwasserkanal mündet. Der Waschautomat weist ferner eine Steuer- oder Regeleinrichtung 4 auf, die ausgebildet ist, den Motor 3, einen Wasserzulauf und -ablauf, eine Durchführung eines Waschprogramms und dgl. zu steuern oder zu regeln. Fig. 1 shows a partial cross-sectional view of a washing machine according to the invention. The washing machine has a tub 1 for holding water (not shown), a ribless drum 2 rotatably mounted in the tub 1 for holding laundry 8 and a motor 3 for driving the drum 2 . The washing machine also has a dispenser 6, which can optionally contain a treatment agent such as washing powder, and which is connected to the tub 1 so that water can be let into the tub 1 and into the drum 2 via it. The drum 2 has a large number of drum openings (not shown) for perfusion. The washing machine also has a drain device 5 in order to be able to remove the water 7 from the tub 1 . The drain device 5 has a drain pipe 5a, which connects the tub 1 to a drain pump 5b, which in turn is connected to a drain line 5c, which usually opens into a sewer. The washing machine also has a control or regulating device 4 which is designed to control or regulate the motor 3, a water inlet and outlet, the execution of a washing program and the like.
Bei Betrieb des Waschautomaten wird zum Waschen und Entknittern einer sich in der Trommel 2 befindenden Wäsche 8 beispielsweise ein in Fig. 2 gezeigtes Waschprogramm durchgeführt. Alternativ kann die Wäsche 8 zum Entknittern auch unter Verwendung eines Waschprogramms behandelt werden, bei dem die vom Nutzer in die Trommel 2 gelegte trockene Wäsche 8 mittels Leiten von Dampf in die Trommel bedampft wird und bei dem die Trommel 2 mit Hilfe des Motors 3 in eine Rechts-Links-Pendelbewegung versetzt wird, deren Pendelrhythmus mit Hilfe der Steuer- oder Regeleinrichtung 4 derart gesteuert oder geregelt wird, dass die Trommel 2 zumindest zeitweise von der Wäsche 8 unberührt ist. When the washing machine is in operation, a washing program shown in FIG. 2, for example, is used to wash and unwrinkle laundry 8 located in drum 2 accomplished. Alternatively, the laundry 8 can also be treated for unwrapping using a washing program in which the dry laundry 8 placed by the user in the drum 2 is steamed by directing steam into the drum and in which the drum 2 is rotated with the aid of the motor 3 in a Right-left pendulum movement is offset, the pendulum rhythm of which is controlled or regulated with the aid of the control or regulating device 4 in such a way that the drum 2 is at least temporarily unaffected by the laundry 8.
Fig. 2 zeigt ein in dem in Fig. 1 gezeigten Waschautomaten hinterlegtes Waschprogramm als Diagramm im zeitlichen Ablauf. Auf der Zeitachse t sind die einzelnen Phasen innerhalb des Wasch program ms Wp aufgezeigt. Der hier dargestellte Programmablauf Wp umfasst eine Erfassungsphase Er, eine Waschphase Wa, eine Spülphase Sp, eine Schleuderphase Sc und ein Vorbügelphase Vb. Zu Beginn des Waschprogramms Wp wird in der Erfassungsphase Er der Wäscheposten erfasst, in dem eine Beladungsmenge an Wäsche in der T rommel erfasst wird. Danach wird Wasser über den Einspülkasten eingelassen, wodurch ggf. ein darin bevorratetes Behandlungsmittel, wie Waschpulver, in den Laugenbehälter eingelassen wird. Anschließend folgt in der Waschphase Wa ein Aufheizabschnitt Hz, in dem das Wasser mittels eines eingeschalteten Heizkörpers des Waschautomaten auf eine Temperatur erhitzt wird, die von der Steuer- oder Regeleinrichtung vom ausgewählten Waschprogramm Wp vorgegeben wird. Nach Erreichen der vorgegebenen Temperatur wird der Heizkörper abgeschaltet und ein sogenannter Nachwaschabschnitt Na folgt. In diesem Nachwaschabschnitt Na wird die Wäsche mittels rotierender Trommel bewegt, wobei sich das Wasser abkühlt. FIG. 2 shows a wash program stored in the automatic washing machine shown in FIG. 1 as a diagram over time. The individual phases within the washing program ms Wp are shown on the time axis t. The program sequence Wp shown here includes a detection phase Er, a washing phase Wa, a rinsing phase Sp, a spin phase Sc and a pre-ironing phase Vb. At the beginning of the washing program Wp, the batch of laundry is recorded in the detection phase Er, in which a load quantity of laundry in the drum is recorded. Thereafter, water is let in via the flush-in dispenser, as a result of which a treatment agent stored therein, such as washing powder, is let into the tub. Then follows in the washing phase Wa a heating section Hz, in which the water is heated by means of a switched-on heater of the washing machine to a temperature that is specified by the control or regulating device from the selected washing program Wp. After the specified temperature has been reached, the heating element is switched off and a so-called post-wash section Na follows. In this post-wash section Na, the laundry is moved by means of a rotating drum, with the water cooling down.
Die Waschphase Wa wird mit dem Abpumpen beendet, wobei die Ablaufeinrichtung, insbesondere die Ablaufpumpe aktiviert wird. Beim Abpumpen kann auch geschleudert werden, damit das mit dem Behandlungsmittel versetzte Wasser aus der Wäsche entfernt wird. Anschließend folgt die Spülphase Sp, bei der erneut Wasser in den Laugenbehälter eingelassen und die Wäsche darin bewegt wird, um die Wäsche zu spülen. Zum Ende der Spülphase Sp wird das Spülwasser abgepumpt, wobei anschließend das Endschleudern Sc zum Entwässern der Wäsche folgt. Beim Endschleudern Sc wird die Trommel mit einer gegenüber dem Waschvorgang erhöhten Drehzahl gedreht, bei der die Wäsche am Trommelmantel anliegt und das Wasser aufgrund der Zentrifugalkraft aus der Wäsche nach außen durch die Trommelöffnungen geschleudert wird. Die Ablaufeinrichtung ist hierbei aktiviert, so dass das Wasser aus dem Laugenbehälter entfernt wird. In der Vorbügelphase Vb wird Dampf in die Trommel geleitet und die Trommel mit Hilfe des Motors in eine Rechts- Links-Pendelbewegung versetzt, deren Pendelrhythmus mit Hilfe der Steuer- oder Regeleinrichtung derart gesteuert oder geregelt wird, dass die T rommel zumindest zeitweise von der Wäsche unberührt ist. Dadurch wird die Wäsche entknittert. Bezugszeichenliste The washing phase Wa ends with the pumping out, with the drain device, in particular the drain pump, being activated. When draining, you can also spin the laundry so that the water mixed with the treatment agent is removed from the laundry. This is followed by the rinsing phase Sp, in which water is again let into the tub and the laundry is moved therein in order to rinse the laundry. At the end of the rinsing phase Sp, the rinsing water is pumped out, followed by the final spin cycle Sc for draining the laundry. In the final spin Sc, the drum is rotated at a higher speed than in the washing process, at which the laundry rests against the drum shell and the water is thrown out of the laundry through the drum openings due to the centrifugal force. The drain device is activated here, so that the water is removed from the tub. In the pre-ironing phase Vb, steam is fed into the drum and the drum is set in a right-left oscillating motion with the aid of the motor, the oscillating rhythm of which is controlled or regulated with the aid of the control or regulating device in such a way that the drum is at least temporarily clear of the laundry is untouched. This dewrinkles the laundry. reference list
Er Erfassungsphase He capture phase
Hz Heizphase Hz heating phase
Na Nachwaschphase Well post-wash phase
Sc Schleuderphase Sc spin phase
Sp Spülphase Sp rinse phase
Vb Vorbügelphase Vb pre-ironing phase
Wa Waschphase Wa washing phase
Wp Waschprogramm Wp washing program
1 Laugenbehälter 1 tub
2 Trommel 2 drum
3 Motor 3 engine
4 Steuer- oder Regeleinrichtung4 control or regulating device
5 Ablaufsystem 5 drainage system
5a Ablaufrohr 5a drain pipe
5b Ablaufpumpe 5b drain pump
5c Ablaufleitung 5c drain line
6 Einspülkasten 6 flushing cistern
8 Wäsche 8 laundry

Claims

8 Patentansprüche 8 patent claims
1 . Verfahren zum Betreiben eines Waschautomaten mit einem Laugenbehälter (1) zur Aufnahme von Wasser, einer in dem Laugenbehälter (1) drehbar gelagerten, rippenlosen Trommel (2) zur Aufnahme von Wäsche (8), einem Motor (3) zum Antreiben der Trommel (2) und einer Steuer- oder Regeleinrichtung (4), wobei das Verfahren eine Vorbügelphase (Vb) zum Vorbügeln der sich in der Trommel (2) befindenden Wäsche (8) aufweist, bei dem Dampf in die Trommel (2) geleitet wird und bei dem die Trommel (2) mit Hilfe des Motors (3) in eine Rechts-Links-Pendelbewegung versetzt wird, deren Pendelrhythmus mit Hilfe der Steuer- oder Regeleinrichtung (4) derart gesteuert oder geregelt wird, dass die T rommel (2) zumindest zeitweise von der Wäsche (8) unberührt ist. 1 . Method for operating a washing machine with a tub (1) for holding water, a ribless drum (2) rotatably mounted in the tub (1) for holding laundry (8), a motor (3) for driving the drum (2 ) and a control or regulating device (4), the method having a pre-ironing phase (Vb) for pre-ironing the laundry (8) located in the drum (2), in which steam is fed into the drum (2) and in which the drum (2) is set in a right-left pendulum motion with the aid of the motor (3), the pendulum rhythm of which is controlled or regulated with the aid of the control or regulating device (4) in such a way that the drum (2) at least temporarily the laundry (8) is unaffected.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die Steuer- oder Regeleinrichtung (4) den Pendelrhythmus in Abhängigkeit von einer Art der Wäsche (8) steuert oder regelt. 2. The method according to claim 1, characterized in that the control or regulating device (4) controls or regulates the pendulum rhythm depending on a type of laundry (8).
3. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Steuer- oder Regeleinrichtung (4) den Pendelrhythmus derart steuert oder regelt, dass er in Abhängigkeit von einer Zeitdauer variiert wird. 3. The method according to any one of the preceding claims, characterized in that the control or regulating device (4) controls or regulates the pendulum rhythm in such a way that it is varied as a function of a period of time.
4. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Steuer- oder Regeleinrichtung (4) den Pendelrhythmus in Abhängigkeit von einer Restfeuchte der Wäsche (8) steuert oder regelt. 4. The method according to any one of the preceding claims, characterized in that the control or regulating device (4) controls or regulates the pendulum rhythm depending on a residual moisture content of the laundry (8).
5. Verfahren nach einem der vorangehenden Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Steuer- oder Regeleinrichtung (4) den Pendelrhythmus derart steuert oder regelt, dass eine Pendelauslenkung des Pendelrhythmus desto größer ist, je schwerer die Art der Wäsche (8) ist und/oder je länger die Zeitdauer und/oder desto größer die Restfeuchte ist. 5. The method according to any one of the preceding claims 2 to 4, characterized in that the control or regulating device (4) controls or regulates the pendulum rhythm in such a way that a pendulum deflection of the pendulum rhythm is greater, the heavier the type of laundry (8). and/or the longer the period of time and/or the greater the residual moisture.
6. Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Steuer- oder Regeleinrichtung (4) die Restfeuchte über eine Funktion der zeit bestimmt. 6. The method according to claim 4 or 5, characterized in that the control or regulating device (4) determines the residual moisture via a function of time.
7. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Dampf von unten in die Trommel (2) geleitet wird, bezogen auf eine betriebsgemäße Aufstellposition des Waschautomaten. 7. The method according to any one of the preceding claims, characterized in that the steam is passed from below into the drum (2), based on an operational set-up position of the washing machine.
8. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Steuer- oder Regeleinrichtung (4) eine maximale Pendelauslenkung des Pendelrhythmus in Abhängigkeit einer maximalen Drehzahl der Trommel (2) steuert oder regelt, mit der die Trommel (2) während der Vorbügelphase (Vb) maximal gedreht wird. 9 Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass eine Temperatur des Dampfes < 50°C ist. Waschautomat mit einem Laugenbehälter (1) zur Aufnahme von Wasser, einer in dem Laugenbehälter (1) drehbar gelagerten, rippenlosen Trommel (2) zur Aufnahme von Wäsche (8), einem Motor (3) zum Antreiben der Trommel (2) und einer Steuer- oder Regeleinrichtung (4), die eingerichtet und ausgebildet ist, ein Verfahren nach einem der vorangehenden Ansprüche zu steuern oder zu regeln. 8. The method according to any one of the preceding claims, characterized in that the control or regulating device (4) controls or regulates a maximum pendulum deflection of the pendulum rhythm depending on a maximum speed of the drum (2) with which the drum (2) during the pre-ironing phase (Vb) is turned to the maximum. 9 Method according to one of the preceding claims, characterized in that a temperature of the steam is <50°C. Automatic washing machine with a tub (1) for holding water, a ribless drum (2) rotatably mounted in the tub (1) for holding laundry (8), a motor (3) for driving the drum (2) and a control - or control device (4), which is set up and designed to control or regulate a method according to one of the preceding claims.
EP21772747.8A 2020-09-11 2021-08-31 Method for operating an automatic washing machine, and automatic washing machine Pending EP4211299A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020123724.3A DE102020123724A1 (en) 2020-09-11 2020-09-11 Method for operating a washing machine and automatic washing machine
PCT/EP2021/073983 WO2022053351A1 (en) 2020-09-11 2021-08-31 Method for operating an automatic washing machine, and automatic washing machine

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EP4211299A1 true EP4211299A1 (en) 2023-07-19

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US (1) US20230349086A1 (en)
EP (1) EP4211299A1 (en)
KR (1) KR20230065313A (en)
CN (1) CN116249810A (en)
DE (1) DE102020123724A1 (en)
WO (1) WO2022053351A1 (en)

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Publication number Priority date Publication date Assignee Title
US7941885B2 (en) * 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
DE102007041906B4 (en) * 2007-09-04 2017-01-19 BSH Hausgeräte GmbH Method for introducing water into a laundry treatment machine and to this suitable laundry treatment machine
DE102008008645B3 (en) 2008-02-11 2009-06-10 Miele & Cie. Kg Process for treating laundry in a washing machine
US9822473B2 (en) * 2009-07-27 2017-11-21 Lg Electronics Inc. Control method of a laundry machine

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US20230349086A1 (en) 2023-11-02
CN116249810A (en) 2023-06-09
WO2022053351A1 (en) 2022-03-17
DE102020123724A1 (en) 2022-03-17

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