EP2183422B1 - Verfahren zur behandlung von wäsche sowie hierzu geeignete programmgesteuerte waschmaschine - Google Patents

Verfahren zur behandlung von wäsche sowie hierzu geeignete programmgesteuerte waschmaschine Download PDF

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Publication number
EP2183422B1
EP2183422B1 EP08774740A EP08774740A EP2183422B1 EP 2183422 B1 EP2183422 B1 EP 2183422B1 EP 08774740 A EP08774740 A EP 08774740A EP 08774740 A EP08774740 A EP 08774740A EP 2183422 B1 EP2183422 B1 EP 2183422B1
Authority
EP
European Patent Office
Prior art keywords
drum
laundry
rotational speed
water
foam
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.)
Active
Application number
EP08774740A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2183422A1 (de
Inventor
Harald MOSCHÜTZ
Christoph Oertel
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL08774740T priority Critical patent/PL2183422T3/pl
Publication of EP2183422A1 publication Critical patent/EP2183422A1/de
Application granted granted Critical
Publication of EP2183422B1 publication Critical patent/EP2183422B1/de
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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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • 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 method for treating laundry in a program-controlled washing machine and to a washing machine which is particularly suitable for carrying out this method.
  • the laundry to be washed only with a wash liquor also referred to as "liquor” comprising treated an amount of water sufficient that the laundry to be washed is saturated with water and a remaining, the smallest possible free fleet , generally 2 to 3 liters, an exchange between the heating and the wash liquor for heating the wash liquor and the laundry allows.
  • a wash liquor also referred to as "liquor” comprising treated an amount of water sufficient that the laundry to be washed is saturated with water and a remaining, the smallest possible free fleet , generally 2 to 3 liters
  • an exchange between the heating and the wash liquor for heating the wash liquor and the laundry allows.
  • This is ensured by a suitable method for controlling the water level in the drum and adjusting the amount of water to the suction capacity of the laundry.
  • the free liquor results after deduction of the amount of water bound in the laundry of the amount of water filled in the washing machine.
  • Cotton fabric binds about 200% of its own weight, so that a load of 6 kg of cotton fabric binds
  • a program-controlled washing machine with a wetting process is described, which can be adjusted to the required amount of water in a tub in a tub rotatably mounted about a non-vertical axis laundry drum by means of a water supply system and a control device, the supply of water in the tub is timed and the Wetting process in as many phases (Ph1 to Ph3) is divided, as quantity levels (small, medium, large) are provided for the laundry to be treated.
  • the energy consumption of a washing machine is essentially determined by the energy required for the heating of the water. A reduction in the amount of water in the washing machine would therefore be desirable, in particular a reduction in the amount of free liquor. However, the heat transfer from the heater to the laundry must be effected by the free liquor. A further reduction of the fleet and thus a reduction in energy consumption are thus difficult to achieve.
  • the object of the invention is therefore to provide a method for treating laundry in a program-controlled washing machine, in which energy can be saved compared to known methods.
  • the object is also to show a suitable for carrying out this process washing machine.
  • the application speed U A of the laundry is the rotational speed of the drum at which the laundry can rest against an inner wall of the drum, for example a speed in the range of 300 to 500 revolutions per minute.
  • a loading amount (a1) of 6 kg with cotton cloth laundry a water amount (a2) of 10 liters could be used.
  • the saturation amount (a3) of water is about twice a loading amount (a1).
  • the saturation amount (a3) may be significantly lower.
  • the values for the saturation amount (a3) are known per se, so that the amount of water (a2) can be specified in a wash program.
  • the loading amount (a1) or the type of laundry to be treated, or both, can be determined by a measure known per se.
  • a hydrostatic pressure p measured with the aid of the sensor can be compared with the filled-in amount of water.
  • the laundry in the drum absorbs water, which therefore can not contribute to an increase in the hydrostatic pressure.
  • the amount of laundry (load (a1)) and its degree of wetness (degree of wetting) determine.
  • the duration of wetting in step a) can be matched very precisely to the predetermined amount of laundry.
  • step a) is completed and step b) can be started.
  • the amount of water (a2), based on the weight of the loading amount (a1) is 90 to 170%, particularly preferably 130 to 150%.
  • step b) of the process a portion of the wash liquor is spun off and conveyed into a gap between the drum and the tub. If the amount of water increases so much that the rotating drum dips into the wash liquor, the wash liquor is beaten to foam due to the high mechanical action of the drum. As a result, the volume of the wash liquor can increase so much that the entire space between the drum and the tub is filled.
  • the foam is then introduced through a front gap between the drum and the tub in the Interior of the drum crowded. There, the foam is subjected to the centrifugal force of the drum, pressed through the laundry and transported back into the space between the drum and the tub. This forms a cycle of the laundry enforcing foam.
  • the complete filling of the tub with foam can be determined by suitable sensors.
  • a sensor for determining the amount of a liquid in the tub or a foam whose sensor signal is tracked during the process a conventional sensor can be used for the determination of the water level.
  • Such a sensor generally measures a hydrostatic pressure p and / or the time gradient ( ⁇ p / ⁇ t) 1 of the hydrostatic pressure p.
  • Completely filled with foam generally shows a sudden increase in pressure on the sensor. This circumstance can be taken as a reason for the introduction of step c).
  • the speed U 2 can vary within wide ranges. Preferably, a speed U 2 in the range of 30 to 80, in particular 40 to 60, for example 50 revolutions per minute is used.
  • a speed U 2 in the range of 30 to 80, in particular 40 to 60, for example 50 revolutions per minute is used.
  • the then total present Amount of water can correspond to the amount of water of a conventional washing program.
  • the laundry Due to the mechanical action due to the reversing operation of the drum, the laundry is flooded with the wash liquor. The dissolved dirt can be rinsed out and transferred to the wash liquor.
  • step c) upon reaching a predetermined temperature T Z , which is less than the wash temperature T W (for example 30 or 40 ° C), the heating is interrupted and the drum at a speed U 2 , which is smaller than the application speed U A , reversing operated.
  • T Z a predetermined temperature
  • T W wash temperature
  • the drum is preferably rotated during a period of 60 seconds to 3.5 minutes, in particular 90 to 150 seconds, for example 120 seconds, with a rotational speed U 1 which is greater than an application speed U A of the laundry.
  • the speed U 1 may be, for example, 250 to 600 revolutions per minute, in particular 300 to 500 revolutions per minute.
  • step f the washing process is generally completed.
  • the laundry can then be rinsed and spun as in a conventional washing program.
  • the invention also relates to a washing machine with a program control for controlling the program flow, a rotatably mounted in a tub drum, one at the bottom of the tub arranged Laugenablaufsystem with a drain pump, a drive motor for the drum, a heater, a sensor for determining a quantity of in the tub liquid or a foam, and switching means for rotating and stopping the drum, wherein the switching means and the sensor are adapted to carry out the method according to the invention described above.
  • the invention has numerous advantages. When carrying out the process according to the invention, a significantly smaller amount of water is heated compared to conventional processes. As a result, a significant saving of energy is possible.
  • FIG. 1 Figure 3 is a schematic representation of the parts of a washing machine that are relevant to the following explanation in which a method as described herein can be performed. Other embodiments are conceivable.
  • the washing machine of the FIG. 1 embodiment shown has a tub 1, in which a drum 2 is rotatably mounted and can be operated by a drive motor 14.
  • step a) of the process fills in particular a space between the drum 2 and the tub 1.
  • step e) water is introduced in an amount sufficient that a space between the tub 1 and the drum 2 at a lower end of the drum is filled with water and can wet the laundry.
  • the washing machine also has a liquor inlet system comprising a water connection fitting for the domestic water network 8, an electrically controllable valve 9 and a supply line 10 to the tub 1, which may optionally also be guided via a Waschstoffein Kunststoff Anlagen Maschinene ("Ein Stammschale") 11, from which the feed water Can transport detergent into the tub.
  • a heater 13 in the tub 1, a heater 13.
  • the valve 9 as well as the heater 13 can be controlled by a control device (“program control”) 12 in response to a program flowchart, the to a time program and / or to the achievement of certain measurements of Parameters such as liquor level, liquor temperature, speed of the drum 2, etc. may be bound within the washing machine.
  • 15 means a sensor for measuring the hydrostatic pressure p in the tub 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP08774740A 2007-07-18 2008-07-03 Verfahren zur behandlung von wäsche sowie hierzu geeignete programmgesteuerte waschmaschine Active EP2183422B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08774740T PL2183422T3 (pl) 2007-07-18 2008-07-03 Sposób obróbki wsadu oraz nadająca się do niego, sterowana programowo pralka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007033493A DE102007033493A1 (de) 2007-07-18 2007-07-18 Verfahren zur Behandlung von Wäsche sowie hierzu geeignete programmgesteuerte Waschmaschine
PCT/EP2008/058628 WO2009010404A1 (de) 2007-07-18 2008-07-03 Verfahren zur behandlung von wäsche sowie hierzu geeignete programmgesteuerte waschmaschine

Publications (2)

Publication Number Publication Date
EP2183422A1 EP2183422A1 (de) 2010-05-12
EP2183422B1 true EP2183422B1 (de) 2012-09-12

Family

ID=40029008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08774740A Active EP2183422B1 (de) 2007-07-18 2008-07-03 Verfahren zur behandlung von wäsche sowie hierzu geeignete programmgesteuerte waschmaschine

Country Status (7)

Country Link
US (1) US9080273B2 (pl)
EP (1) EP2183422B1 (pl)
CN (1) CN101755085B (pl)
DE (1) DE102007033493A1 (pl)
EA (1) EA015830B1 (pl)
PL (1) PL2183422T3 (pl)
WO (1) WO2009010404A1 (pl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013225113B4 (de) 2013-12-06 2019-01-31 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäsche mit verbesserter Benetzungsphase und hierzu geeignete Waschmaschine
DE102014108591B4 (de) * 2014-06-18 2016-10-20 Miele & Cie. Kg Verfahren zum Feuchtwaschen
EP3320137B1 (de) * 2015-07-08 2020-07-29 BSH Hausgeräte GmbH Wäschepflegegerät und wäschepflegeverfahren
AU2016234990B2 (en) 2015-10-02 2018-12-06 Lg Electronics Inc. Washing machine and method for controlling the same
AU2016234984B2 (en) * 2015-10-02 2018-11-08 Lg Electronics Inc. Washing machine
US20170096769A1 (en) 2015-10-02 2017-04-06 Lg Electronics Inc. Method for controlling washing machine
KR102587227B1 (ko) * 2016-05-30 2023-10-11 엘지전자 주식회사 세탁기의 제어 방법
DE102019119096A1 (de) * 2019-07-15 2021-01-21 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine mit Umfluteinrichtung und Waschmaschine
US11028527B2 (en) 2019-09-27 2021-06-08 Whirlpool Corporation Laundry treating appliance for drying laundry

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221448A1 (de) * 1971-04-29 1972-11-09 Pegg S & Son Ltd Verfahren zum Reinigen von Textilmaterialien
DE3703917A1 (de) * 1987-02-09 1988-08-18 Bosch Siemens Hausgeraete Verfahren zum automatischen waschen von waesche
US5167722A (en) * 1990-01-05 1992-12-01 Whirlpool Corporation Spray rinse process for vertical axis automatic washer
US4987627A (en) * 1990-01-05 1991-01-29 Whirlpool Corporation High performance washing process for vertical axis automatic washer
DE4104450A1 (de) * 1991-02-14 1992-08-20 Manfred Stoll Verfahren und einrichtung zum waschen von textilien in einem waschvollautomaten nach dem doppeltrommelprinzip und recyclingbehaelter zum speichern von flotten
US5345637A (en) * 1993-04-27 1994-09-13 Whirlpool Corporation High performance washing system for a horizontal axis washer
ES2146130B1 (es) 1995-12-27 2001-02-16 Fagor S Coop Metodo de lavado de ropa en una lavadora domestica.
JP2001087592A (ja) * 1999-09-20 2001-04-03 Hitachi Ltd ドラム式洗濯機
KR100565251B1 (ko) * 2004-07-19 2006-03-30 엘지전자 주식회사 드럼세탁기의 절수세탁방법
DE102004039662A1 (de) 2004-08-16 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Programmgesteuerte Waschmaschine
JP3781047B2 (ja) * 2004-11-09 2006-05-31 松下電器産業株式会社 ドラム式洗濯機
KR101095555B1 (ko) * 2005-05-04 2011-12-19 삼성전자주식회사 세탁기 및 그 거품제거방법
US7765628B2 (en) * 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash

Also Published As

Publication number Publication date
PL2183422T3 (pl) 2013-02-28
US20100306925A1 (en) 2010-12-09
CN101755085A (zh) 2010-06-23
EA015830B1 (ru) 2011-12-30
EP2183422A1 (de) 2010-05-12
US9080273B2 (en) 2015-07-14
DE102007033493A1 (de) 2009-01-22
EA201070154A1 (ru) 2010-06-30
WO2009010404A1 (de) 2009-01-22
CN101755085B (zh) 2012-02-22

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