EP2813614A1 - Procédé de lavage pour un lave-linge - Google Patents

Procédé de lavage pour un lave-linge Download PDF

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Publication number
EP2813614A1
EP2813614A1 EP20140170896 EP14170896A EP2813614A1 EP 2813614 A1 EP2813614 A1 EP 2813614A1 EP 20140170896 EP20140170896 EP 20140170896 EP 14170896 A EP14170896 A EP 14170896A EP 2813614 A1 EP2813614 A1 EP 2813614A1
Authority
EP
European Patent Office
Prior art keywords
drum
phase
washing
acceleration
tub
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.)
Withdrawn
Application number
EP20140170896
Other languages
German (de)
English (en)
Inventor
Frank Heisenberger
Florian Koch
Carsten Haarhaus
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 EP2813614A1 publication Critical patent/EP2813614A1/fr
Withdrawn legal-status Critical Current

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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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only

Definitions

  • the invention relates to a washing method for a washing machine, which has a tub and a drum rotatably arranged in the tub.
  • a washing method for a washing machine which has a tub and a drum rotatably arranged in the tub.
  • the laundry is moved in the rotating drum, whereby the wetting of the laundry with the washing liquid is effected.
  • washing liquid is in the tub or in the drum, which is flushed out of the laundry by the movement of dirt.
  • the washing method therefore comprises a washing step in which laundry arranged in the drum is washed by rotating the drum in a washing liquid arranged in the tub.
  • the drum can be rotated at a constant drum speed, and when the washing process is completed, be braked.
  • the drum speed is ramped up during an acceleration phase, for example, and decreased during a subsequent brake phase at the completion of the wash step.
  • Washing processes are generally influenced by four factors, which are summarized under the term Sinnerscher circle. These four factors are temperature, time, chemistry and mechanics. A coordinated combination of these factors can increase the washing effect. In an energetically optimized washing process using, for example, less water, this is particularly true because the transferring role of the water is minimized. The optimal interaction of the factors of the Sinner circle is thus more difficult to fulfill.
  • the disadvantage is that in washing process, the washing time is relatively high, the mechanics in the inner wash area is relatively low and the heat and water entry into the laundry from outside to inside, resulting in a relatively inhomogeneous temperature profile in the laundry and thereby to a more irregular washing effect leads.
  • the invention thus raises the problem of providing an improved washing effect.
  • the acceleration phase and the braking phase are cyclically repeated during the washing step.
  • the achievable with the present invention consist in addition to a more uniform washing action in more washing action per time.
  • an optimized laundry distribution and thus a better spin cycle can be achieved.
  • the laundry may behave differently depending on the increasing drum speed.
  • the laundry drops during one drum revolution from the drum shell.
  • the laundry is in the form of a ring on the drum shell.
  • the temperature and chemistry factors of Sinner's circle are favored, as a lower drum speed means the introduction of the washing liquid favored via scoop ribs of the drum in the laundry. If the drum speed is so high that forms a washing ring on the drum shell, the factors temperature and chemistry of the Sinner circle are favored.
  • the Sinner's Circle mechanism is favored until the drum speed is so low that the temperature and chemistry factors of the Sinner's circle are favored, as a lower drum speed means that the washing liquid is introduced via the bowl's scooping ribs favors in the laundry.
  • a lower drum speed means that the washing liquid is introduced via the bowl's scooping ribs favors in the laundry.
  • the acceleration phase and the braking phase are repeated cyclically with a cycle duration of less than 300 seconds, between 10 seconds and 180 seconds, or between 15 seconds and 90 seconds. The more frequently the acceleration and braking phases are carried out alternately, the more intense the interaction of the factors of the Sinner circle becomes.
  • the drum speed is increased from a minimum speed of less than 20 revolutions per minute (RPM), less than 10 RPM, or less than 5 RPM.
  • the drum speed is reduced to the minimum speed during the braking phase.
  • the minimum speed is preferably substantially zero, more preferably zero. The lower the minimum speed is, the better the washing liquid can be introduced into the laundry via scoop ribs of the drum.
  • a low minimum speed at the beginning of the acceleration phase and at the end of the braking phase is for the factors temperature and chemistry of the Sinner's Circle advantageous.
  • the variation of the drum speed in the acceleration phase and the braking phase is such that the time course of the drum speed in a cycle is bell-shaped.
  • the drum speed is increased during the acceleration phase up to a maximum speed at which acts on the laundry, a centrifugal acceleration greater than or equal to the gravitational acceleration.
  • a centrifugal acceleration greater than or equal to the gravitational acceleration.
  • the centrifugal acceleration is greater than the gravitational acceleration, the garment wraps itself in the form of a ring on the drum shell. As a result, falling movements of the laundry and possibly rubbing of the laundry on a door glass are prevented.
  • the higher the drum speed the greater the centrifugal acceleration that acts on the laundry. The centrifugal acceleration can become so great that washing liquid is expelled from the laundry.
  • the maximum speed represents the drum speed to which the desired effect between the concern of the laundry on the drum shell and the expulsion of the washing liquid is ensured from the laundry.
  • the maximum speed is selected such that a spin-on of the laundry can take place. That is, the maximum speed is less than a drum speed commonly used for spinning the laundry because the washing liquid should not be completely expelled from the laundry to develop its washing effect.
  • the maximum speed is in the range of 50 to 80 rpm, more preferably 60 to 70 rpm.
  • Each cycle of acceleration phase and braking phase preferably has a tunnel phase.
  • the drum speed is so high that acts on the laundry, a centrifugal acceleration greater than or equal to the gravitational acceleration.
  • the tunneling phase occupies less than 50%, 40%, 30% or 25% of a cycle time of the cycle of acceleration phase and braking phase. In the tunnel phase, a better mixing is achieved and continue to affect the factor mechanics of Sinner circle evenly over the laundry.
  • a flooding device is preferably operated in order to remove washing liquid from a lower region of the tub and to introduce it into a middle or upper region of the tub.
  • the laundry wraps itself in the form of a wreath on the drum shell.
  • washing liquid is fed into the forming ring in parallel via the flooding device, the temperature and chemistry factors of the Sinner circle can be effective, so that a more uniform moisture penetration, a higher circulation of the washing liquid and a more homogeneous temperature course in the laundry are achieved.
  • the Feeding of washing liquid through the circulating device can be counteracted the expulsion of washing liquid from the laundry.
  • a heater is operated throughout the cycle to heat wash liquid in the tub.
  • the proportion of the temperature of the Sinner circle can be increased.
  • the direction of rotation of the drum is changed. This causes a better mixing of the laundry. For example, if the wash step begins with a cycle in which the drum is rotated to the right, then the drum is rotated leftward on the subsequent cycle, the drum is rotated to the right on the following cycle, and so on, with the terms “right” and “left” each refer to the operating position of the washing machine. By changing the direction of rotation of the drum better mixing of the laundry is achieved.
  • the invention further relates to a household or commercial washing machine with a tub, a drum rotatably mounted in the tub and a controller which is adapted to perform the washing process described above.
  • the term washing machine should also tumble dryer for washing and drying laundry fall.
  • a commercial washing machine is a washing machine whose drum can hold laundry with a dry weight of 8 to 32 kilograms (kg).
  • a commercial washing machine has a drum diameter of 0.59 to 0.8 meters (m), the drum volume is 80 to 320 liters (l).
  • a household washing machine is a washing machine whose drum holds laundry having a dry weight of less than 8 kg.
  • the method described is preferably designed for a commercial washing machine.
  • Fig. 1 shows a washing machine in a sketched sectional view. Position and direction information refer to the operational installation position of the washing machine.
  • Fig. 1 is shown a sketched sectional view of a washing machine.
  • the washing machine has a tub 1 and a rotatably mounted in the tub 1 drum 2.
  • the drum 2 For washing, the drum 2 to be washed laundry. 3 filled.
  • the drum 2 is driven by means of a drum drive motor 21, so that the drum 2 rotates and the laundry 3 is moved into it.
  • the drum drive motor 21 can be controlled by a controller (not shown) such that the drum 2 can change the direction of rotation, if desired.
  • a drain pump 5 is arranged, which directs wash liquid from the tub 1 and preferably in a sewer or other water drain when activated.
  • a heating element 6 is arranged, which can heat the washing liquid in the tub 1.
  • the washing machine has a circulating device 4 with a circulating pump 41 and a circulating line 42. Upon activation of the circulating pump 41, washing liquid located in the lower region of the liquor container 1 is conveyed through the circulating line 42 into the upper region of the liquor container 1.
  • washing machine is designed to be in Fig. 2 Carry out the washing process described.
  • Fig. 2 shows a timing of setting a drum speed in a washing process.
  • laundry arranged in the drum is washed by rotating the drum in a washing liquid disposed in the tub.
  • the washing process comprises a washing step 100.
  • a drum speed is increased during an acceleration phase 101 and reduced during a subsequent braking phase 102.
  • the acceleration phase 101 and the braking phase 102 are cyclically repeated during the washing step 100.
  • the timing of the acceleration phase 101 and the braking phase 102 is in total Fig. 2 a total of 32 s, but is purely exemplary and may take longer or shorter.
  • the acceleration phase 101 comprises a first acceleration section, in which the drum speed is increased from 0 rpm to 20 rpm within 1 s. In the first accelerating section, it is possible to introduce the washing liquid into the laundry through the scooping ribs of the drum and to favor the factors of temperature and chemistry of the Sinner's circle.
  • the first acceleration section is followed by a second acceleration section, in which the drum speed is increased from 20 rpm to 52 rpm within 12 s. In the second acceleration section increases the proportion of the factor mechanics of Sinner circle with increasing drum speed.
  • the second acceleration section serves as a preparation step for the subsequent third acceleration section.
  • the drum speed is increased from 52 rpm to 60 rpm within 1 second.
  • the drum speed is increased faster compared to the second acceleration section.
  • the increase of the drum speed is slower to allow better distribution of the laundry before a tunneling phase 103 described below enable.
  • the third acceleration section is followed by a fourth acceleration section, in which the drum speed is increased from 60 rpm to 70 rpm within 1 second.
  • the laundry increasingly engages the drum shell with increasing drum speed. With increasing drum speed but also increasingly washing fluid is expelled from the laundry.
  • the braking phase 102 begins.
  • the braking phase 102 has a first braking section, in which the drum speed is reduced within 1 s from 70 rpm to 60 rpm.
  • the first brake section is adjoined by a second brake section, in which the drum speed is reduced from 60 rpm to 20 rpm within 12 s.
  • the washing mechanism In the first and second brake sections begins with increasing drum speed reduction, the washing mechanism.
  • the second brake section is adjoined by a third brake section, in which the drum speed is reduced from 20 rpm to 0 rpm within 3 seconds.
  • the washing liquid level in the tub increases because free liquor forms.
  • the forming free liquor flowing out of the laundry flows into the sump where it can be heated by the heating element.
  • the drum speed is lowered so that the washing liquid can be introduced via the scoop ribs in the laundry, which increases the proportion of factors temperature and chemistry of Sinner's circle.
  • the third brake section is followed by a 1 second settling phase at which the drum speed is 0 rpm before a new cycle is started, as in FIG FIG. 2 from the time of 33 s is indicated.
  • the direction of rotation of the drum is changed. For example, if the drum is rotated to the right in the cycle lasting from 0 s to 32 s, the drum is turned to the left in the cycle starting at 33 s. This causes a better mixing of the laundry.
  • the third acceleration section, the fourth acceleration section, the maximum acceleration section, the first brake section and partially the second brake section together form the tunneling phase 103.
  • the tunneling phase 103 a good mixing of washing liquid and laundry is achieved and in addition, the mechanics factor of the Sinner circle works evenly over the laundry.
EP20140170896 2013-06-12 2014-06-03 Procédé de lavage pour un lave-linge Withdrawn EP2813614A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310106089 DE102013106089A1 (de) 2013-06-12 2013-06-12 Waschverfahren für eine Waschmaschine

Publications (1)

Publication Number Publication Date
EP2813614A1 true EP2813614A1 (fr) 2014-12-17

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Family Applications (1)

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EP20140170896 Withdrawn EP2813614A1 (fr) 2013-06-12 2014-06-03 Procédé de lavage pour un lave-linge

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EP (1) EP2813614A1 (fr)
DE (1) DE102013106089A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037538A1 (fr) * 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Appareil de soin du linge équipé d'une unité de commande
CN114341420B (en) * 2019-08-29 2024-04-30 Bsh家用电器有限公司 Washware care implement with controller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1410174A1 (de) * 1958-07-28 1970-05-06 Constructa Werke Gmbh Verfahren zum mechanischen Behandeln von Waschgut und danach arbeitende Waschmaschine
EP0369933A1 (fr) * 1988-11-14 1990-05-23 Miele & Cie. GmbH & Co. Procédé de lavage pour une machine à laver à tambour commandée par un programme
DE4337943A1 (de) * 1992-11-19 1994-05-26 Miele & Cie Trommelwaschmaschine
EP0781881A1 (fr) * 1995-12-27 1997-07-02 FAGOR, S.Coop Procédé pour laver le ligne dans une machine à laver domestique
DE10054947A1 (de) * 2000-11-06 2002-05-08 Bsh Bosch Siemens Hausgeraete Verfahren und Vorrichtung zum Behandeln von Wäsche
EP1477606A1 (fr) * 2001-12-21 2004-11-17 Kabushiki Kaisha Toshiba Machine a laver

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310595A1 (de) * 1993-03-31 1994-10-06 Bosch Siemens Hausgeraete Waschmaschine mit einer reversierend betriebenen Wäschetrommel
DE102011007141A1 (de) * 2011-04-11 2012-10-11 Gottlob Stahl Wäschereimaschinenbau GmbH Waschmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1410174A1 (de) * 1958-07-28 1970-05-06 Constructa Werke Gmbh Verfahren zum mechanischen Behandeln von Waschgut und danach arbeitende Waschmaschine
EP0369933A1 (fr) * 1988-11-14 1990-05-23 Miele & Cie. GmbH & Co. Procédé de lavage pour une machine à laver à tambour commandée par un programme
DE4337943A1 (de) * 1992-11-19 1994-05-26 Miele & Cie Trommelwaschmaschine
EP0781881A1 (fr) * 1995-12-27 1997-07-02 FAGOR, S.Coop Procédé pour laver le ligne dans une machine à laver domestique
DE10054947A1 (de) * 2000-11-06 2002-05-08 Bsh Bosch Siemens Hausgeraete Verfahren und Vorrichtung zum Behandeln von Wäsche
EP1477606A1 (fr) * 2001-12-21 2004-11-17 Kabushiki Kaisha Toshiba Machine a laver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037538A1 (fr) * 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Appareil de soin du linge équipé d'une unité de commande
CN114341420A (zh) * 2019-08-29 2022-04-12 Bsh家用电器有限公司 具有控制器的洗涤物护理器具
CN114341420B (en) * 2019-08-29 2024-04-30 Bsh家用电器有限公司 Washware care implement with controller

Also Published As

Publication number Publication date
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