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EP0761864A1 - Verfahren und Maschine zum Trocknen von Wäsche - Google Patents

Verfahren und Maschine zum Trocknen von Wäsche Download PDF

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Publication number
EP0761864A1
EP0761864A1 EP96401864A EP96401864A EP0761864A1 EP 0761864 A1 EP0761864 A1 EP 0761864A1 EP 96401864 A EP96401864 A EP 96401864A EP 96401864 A EP96401864 A EP 96401864A EP 0761864 A1 EP0761864 A1 EP 0761864A1
Authority
EP
European Patent Office
Prior art keywords
speed
drying
drum
laundry
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96401864A
Other languages
English (en)
French (fr)
Other versions
EP0761864B1 (de
Inventor
Daniel Remeur
Pascal Chabanne
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.)
Esswein SA
Original Assignee
Esswein SA
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 Esswein SA filed Critical Esswein SA
Publication of EP0761864A1 publication Critical patent/EP0761864A1/de
Application granted granted Critical
Publication of EP0761864B1 publication Critical patent/EP0761864B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/30—Drying processes 
    • 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
    • D06F2103/28—Air properties
    • D06F2103/34—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
    • D06F2103/44—Current or voltage
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity

Definitions

  • the subject of the present invention is an improved method of drying linen and a machine using it.
  • the subject of the present invention is a method making it possible to improve the drying of the linen of a washer-dryer or drying machine, by reducing, at equal efficiency, the drying time, and this, as simply as possible.
  • the present invention also relates to a machine implementing the method of the invention.
  • the method of the invention consists, in the drying phase of the laundry, of rotating the drum at an "improved drying" speed slightly lower than the speed of centrifugation of its contents.
  • this speed is between 65 and 70 revolutions / mm approximately.
  • the drying phase comprises several stages, during each of which the speed of rotation of the drum is different from one stage to the next, advantageously by alternating stages at higher speed, at equal speed and at a speed lower than the speed of "improved drying".
  • the speed can vary, for example, from a minimum speed of approximately 35 to 50 t / mm to a maximum speed of approximately 70 to 100 t / mm.
  • the present invention relates to washing-drying machines as well as to only drying machines, these machines possibly being front-loading or top-loading. To simplify, in the following description, they will only be called machines.
  • the machine 1 represented in FIGS. 1 and 2, comprises, inter alia, a drum 2 rotating around its axis 3 in a tank 4.
  • the hot air mixing circuit of the machine 1 comprises a turbine 5 whose pipe d air intake 6 is connected to the upper part of the tank 4, and whose air injection pipe 7 is connected to the tank, coaxially with the axis 3.
  • the other parts of the hot air circulation circuit have not been shown.
  • the drum rotates, in drying mode, at the same speed as in washing or rinsing mode (in the case of a washing machine), which simplifies the control of the drum drive motor.
  • This has the effect, when the quantity of laundry to be dried is such that this laundry fills at least half of the drum (when the latter is stopped), to gather the laundry 8 into a relatively compact mass which at least partially clogs the hot air injection pipe 7.
  • the hot air arriving through the pipe 7 in the drum follows a "short-circuit" path between the pipe 7 and the pipe 6, that is to say that it runs along the side wall of the drum 2 close to the pipe 7, barely crossing the linen 8 which is too compacted to provide passage for this hot air.
  • the "pipe” 9 has a diameter which depends on the speed of rotation of the drum, and which is equal to or slightly greater than the diameter of the pipe 7.
  • the drying of the laundry is improved and decreases the drying time for an equal degree of drying, and therefore the consumption of electrical energy is also reduced.
  • the pieces of laundry near the pipe 9 are much less subject to centrifugal force than those that are furthest from this pipe, and can move relative to other pieces of laundry, migrating from the axis towards the periphery of the drum, thus ensuring a mixing of laundry and improving the uniformity of drying.
  • the speed of rotation of the drum in the drying regime is not kept constant. It can vary in stages or gradually around the improved drying speed, between two limits which are for example 35 t / mm and about 100 t / mm, and can alternately increase and decrease between these two limits.
  • short breaks can be provided during the drying phase, allowing the laundry to fall to the bottom of the drum when it stops, and to be distributed differently when the drum resumes its rotation.
  • the different speed levels or the different rotation speeds of the drum can correspond to different stages of drying of the laundry: start, middle and end of drying, and cooling of the laundry. At each stop, the drum can change the direction of rotation, so as not to tangle the laundry, to promote uniformity of drying and to limit wrinkling of this laundry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP96401864A 1995-09-01 1996-08-30 Verfahren und Maschine zum Trocknen von Wäsche Expired - Lifetime EP0761864B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9510300 1995-09-01
FR9510300A FR2738262B1 (fr) 1995-09-01 1995-09-01 Procede de sechage ameliore du linge et machine le mettant en oeuvre

Publications (2)

Publication Number Publication Date
EP0761864A1 true EP0761864A1 (de) 1997-03-12
EP0761864B1 EP0761864B1 (de) 2001-08-08

Family

ID=9482210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401864A Expired - Lifetime EP0761864B1 (de) 1995-09-01 1996-08-30 Verfahren und Maschine zum Trocknen von Wäsche

Country Status (3)

Country Link
EP (1) EP0761864B1 (de)
DE (1) DE69614328D1 (de)
FR (1) FR2738262B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0937810A1 (de) * 1998-02-24 1999-08-25 ANTONIO MERLONI S.p.A. Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen
EP1510612A2 (de) * 2003-08-26 2005-03-02 LG Electronics Inc. Verfahren zum Steuern eines Trocknungszyklus in einer Waschmaschine
EP1577433A2 (de) 2004-02-17 2005-09-21 LG Electronics Inc. Zuführvorrichtung für Heissluft zum Trocknen von Wäsche in einer Trommelwaschmaschine und Verfahren zur Steuerung
EP1916328A1 (de) * 2006-10-25 2008-04-30 Brandt Industries SAS Verfahren zum Trocknen von Wäsche in einem Wäschetrockner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101053580B1 (ko) * 2004-02-17 2011-08-03 엘지전자 주식회사 드럼세탁기의 건조운전제어방법
KR101053581B1 (ko) * 2004-02-17 2011-08-03 엘지전자 주식회사 드럼세탁기의 건조용 열풍 공급구조 및 그에 따른운전제어방법
KR20100095107A (ko) * 2009-02-20 2010-08-30 엘지전자 주식회사 세탁장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017109A1 (de) * 1980-05-03 1981-11-05 Miele & Cie GmbH & Co, 4830 Gütersloh Verfahren zur durchfuehrung des trocknungsprogramms in einer trommelwasch- und trockenmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017109A1 (de) * 1980-05-03 1981-11-05 Miele & Cie GmbH & Co, 4830 Gütersloh Verfahren zur durchfuehrung des trocknungsprogramms in einer trommelwasch- und trockenmaschine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0937810A1 (de) * 1998-02-24 1999-08-25 ANTONIO MERLONI S.p.A. Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen
EP1510612A2 (de) * 2003-08-26 2005-03-02 LG Electronics Inc. Verfahren zum Steuern eines Trocknungszyklus in einer Waschmaschine
EP1510612A3 (de) * 2003-08-26 2006-01-25 LG Electronics Inc. Verfahren zum Steuern eines Trocknungszyklus in einer Waschmaschine
US8196242B2 (en) 2003-08-26 2012-06-12 Lg Electronics Inc. Method of controlling drying cycle in a washing machine based on sensed temperature
EP1577433A2 (de) 2004-02-17 2005-09-21 LG Electronics Inc. Zuführvorrichtung für Heissluft zum Trocknen von Wäsche in einer Trommelwaschmaschine und Verfahren zur Steuerung
EP1577433A3 (de) * 2004-02-17 2008-11-19 LG Electronics Inc. Zuführvorrichtung für Heissluft zum Trocknen von Wäsche in einer Trommelwaschmaschine und Verfahren zur Steuerung
AU2005200711B2 (en) * 2004-02-17 2011-10-06 Lg Electronics Inc. Structure for supplying hot air for drying clothes in drum type washing machine and operation control method thereof
EP1916328A1 (de) * 2006-10-25 2008-04-30 Brandt Industries SAS Verfahren zum Trocknen von Wäsche in einem Wäschetrockner
FR2907806A1 (fr) * 2006-10-25 2008-05-02 Brandt Ind Sas Procede de sechage du linge d'une machine a secher le linge

Also Published As

Publication number Publication date
EP0761864B1 (de) 2001-08-08
DE69614328D1 (de) 2001-09-13
FR2738262B1 (fr) 1997-09-26
FR2738262A1 (fr) 1997-03-07

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