EP1682715A1 - Procede pour secher du linge et seche-linge pour mettre en oeuvre le procede - Google Patents

Procede pour secher du linge et seche-linge pour mettre en oeuvre le procede

Info

Publication number
EP1682715A1
EP1682715A1 EP04790664A EP04790664A EP1682715A1 EP 1682715 A1 EP1682715 A1 EP 1682715A1 EP 04790664 A EP04790664 A EP 04790664A EP 04790664 A EP04790664 A EP 04790664A EP 1682715 A1 EP1682715 A1 EP 1682715A1
Authority
EP
European Patent Office
Prior art keywords
air
drying
drying chamber
dry
pressure
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
EP04790664A
Other languages
German (de)
English (en)
Other versions
EP1682715B1 (fr
Inventor
Hans-Werner Böttcher
Eckhard Nave
Holger Wagner
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 EP1682715A1 publication Critical patent/EP1682715A1/fr
Application granted granted Critical
Publication of EP1682715B1 publication Critical patent/EP1682715B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/30—Pressure
    • 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
    • D06F2103/36—Flow or velocity
    • 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
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/32—Air flow control means
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature

Definitions

  • the invention relates to a method for drying laundry and a clothes dryer for carrying out the method with a drying chamber and a process air duct, in which a blower for conveying the dry air through the drying chamber and a heating device are arranged, the process air duct being designed with a fresh air supply and an exhaust air discharge and in the process air duct means for separating the dry air flow into an exhaust air component and a recirculated air component are arranged, the clothes dryer having sensors for recording process parameters and, depending on the detected parameters, controlling the means for separating the dry air flow for changing the exhaust air / recirculated air component he follows.
  • Such a method is known from DE 2220425 A1 for a clothes dryer with a water-cooled condenser.
  • the dry air flow is guided through the process air duct with the blower, the heating device and the water-cooled condenser and through the drying chamber.
  • the process air duct is designed with a fresh air supply and an exhaust air duct.
  • the process air duct has flaps which open or close the fresh air opening and the exhaust air opening in whole or in part.
  • a first drying section in which the laundry is still wet or relatively moist, the dry air is conducted in a closed circuit. The flaps are closed in this first drying section.
  • the tumble dryer can be operated in a partially open circuit after a predetermined degree of drying of the laundry has been reached. Part of the dry air is returned to the drying chamber as part of the recirculated air and part as part of the exhaust air from the device. The residual moisture content in the laundry is evaluated as a process parameter for controlling the flaps.
  • the water-cooled condenser remains switched on and the flaps partially open their openings to the fresh air inlet or exhaust air outlet. If the laundry has reached an advanced level of dryness, it is intended to switch off the condenser and to operate the tumble dryer as an exhaust air dryer with the fresh air supply open and the exhaust air opening open.
  • DE 200 10728 U1 discloses a tumble dryer with a circulating air arrangement, in which the heater, blower and a circulating air box with a controllable flap for setting an exhaust air / circulating air portion of the dry air are combined to form a structural unit and are arranged on the top of the tumble dryer.
  • the operating mode exhaust air / recirculating air or the position of the flap for the exhaust air / recirculating air portion must be done manually to get voted.
  • a control of the flap depending on process parameters is not provided.
  • a tumble dryer (Miele T 6251) with a constantly set exhaust air / recirculation system is known, in which part of the drying air is passed back into the drying chamber as recirculating air over the entire drying process.
  • this tumble dryer has a rotatably mounted drying drum with a drum volume of 250 liters.
  • the drying drum is followed by a process air guide section with a filter device, which is referred to as a filter chamber.
  • the blower area with the blower is arranged after the filter chamber.
  • a baffle is arranged in the direction of flow, which divides the air flow into the exhaust air component and the recirculating air component.
  • the exhaust air portion is led out of the device via the exhaust air opening.
  • the circulating air portion is mixed with fresh air, which is sucked in through the fresh air opening due to the negative pressure in the drying drum.
  • the fresh air portion and the recirculated air portion are warmed up again via the heating and fed again into the drying drum.
  • the still wet, heavy laundry is optimally moved in the air flow in the drying drum.
  • the laundry fills the drying drum almost completely. Due to the arrangement and design as well as the dimensioning of the blower for a large-volume drying drum, the laundry items can be sucked in at the air outlet of the drying drum.
  • the laundry When drying duvets, pillows and down comforters, the laundry can be sucked before the drying air escapes from the drying drum due to the negative pressure and when the laundry filling is at an advanced level of dryness. This problem can also arise when drying airtight textiles e.g. B. Outdoor clothing occur. Due to the textiles adhering to the suction opening, the air flow through the drying drum is interrupted and the laundry in the drum overheats or does not dry gently.
  • the invention thus presents the problem of avoiding laundry damage which can occur as a result of an interruption in the drying air flow in the drying drum and of achieving an optimal drying result.
  • the advantages achievable with the invention also consist in particular in that the pressure sensor is directly assigned to the drying chamber.
  • the pressure sensor is advantageously arranged in the area of the air inlet opening to the drying chamber, as a result of which it is possible to react directly to the pressure conditions present in the drying chamber.
  • the dry air volume flow in the drying chamber is reduced by actuating a shut-off damper arranged in the process air duct for the circulating air path of the circulating air portion in the dry air.
  • the air circulation path can be completely or partially closed.
  • the suction effect on the textiles adhering to the suction opening or the air outlet opening is reduced and these fall back into the drying chamber. It has proven to be advantageous to continue the drying process afterwards with the reduced dry air volume flow in order to avoid a further interruption of the dry air flow through the textiles.
  • FIG. 1 schematically shows a tumble dryer according to the invention for carrying out the method in a side view in section
  • FIG. 2 schematically shows the exhaust air / circulating air separation in a front view
  • FIG. 1 schematically shows a tumble dryer according to the invention for carrying out the method in a side view in section
  • FIG. 2 schematically shows the exhaust air / circulating air separation in a front view
  • FIG. 1 schematically shows a tumble dryer according to the invention for carrying out the method in a side view in section
  • FIG. 2 schematically shows the exhaust air / circulating air separation in a front view
  • the drying chamber of a clothes dryer is designed as a rotatably mounted drying drum (1).
  • the air outlet opening (2) of the drying drum (1) which is arranged in the area of the front filling opening (3) for the laundry, is a
  • Process air guide section which can be referred to as a filter chamber (4), connected downstream with a filter device (5).
  • the dry air is conveyed from the filter chamber (4) into the blower area (7) with the exhaust air / circulating air distribution by means of a fan (6) via the filter device (5).
  • the blower area (7) with the exhaust air / circulating air distribution is opposite the filter chamber (4) by a partition (8) with one to rotate Drying drum (1) facing sealing arrangement (9) completed.
  • the dry air is directed axially to the fan (6) via an inflow nozzle (10) formed in the partition (8).
  • the blower area (7) with the means (baffle 11, flap 14) for separating the dry air flow into an exhaust air portion and a recirculating air portion is shown schematically in the front view.
  • the baffle (11) is arranged on the pressure side of the blower (6) and divides the radially emerging air flow into the exhaust air portion and the recirculating air portion.
  • the baffle (11) is arranged approximately parallel to the direction of flow of the emerging dry air.
  • the exhaust air portion is led out of the device via the exhaust air opening (12).
  • the recirculated air portion is directed into the recirculated air path (13), which can be completely or partially closed via a flap (14) shown in more detail in FIG. 1.
  • the circulating air portion is mixed with fresh air, which is sucked in due to the negative pressure in the drying drum (1) via the fresh air opening (15) on the back of the device.
  • the fresh air portion and the recirculated air portion are heated again via the heater (17) arranged in the heating duct section (16) of the dry air duct and are conducted again into the drying drum (1).
  • a further sealing arrangement (18) is arranged between the heating duct section (16) and the rotating drying drum (1).
  • a pressure sensor (20) is arranged in the air inlet area (19) of the drying air to the drying drum (1), which detects the pressure curve in the drying drum (1).
  • the pressure curve is evaluated by the program control (21) of the tumble dryer to control the flap (14) arranged in the air circulation path (13). It happens in the course of
  • the drying air flow in the drying drum (1) is interrupted.
  • the flap (14) arranged in the air circulation path (13) is actuated.
  • the proportion of circulating air in the dry air is reduced or set to zero by closing the flap (14) in whole or in part via an adjusting device (22).
  • the drying process is continued with a reduced volume flow through the drying drum (1).
  • the flap (14) is completely closed, the volume flow of the dry air is reduced to the fixed portion of the exhaust air volume flow specified by the arrangement of the guide plate (11).
  • the heating output can be reduced or switched off completely.
  • FIG. 3 shows the structure of the clothes dryer with the details essential to the invention described in FIGS. 1 and 2 in a perspective view.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP04790664A 2003-10-23 2004-10-20 Procede pour secher du linge et seche-linge pour mettre en oeuvre le procede Active EP1682715B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349712A DE10349712B4 (de) 2003-10-23 2003-10-23 Verfahren zum Trocknen von Wäsche und Wäschetrockner zur Durchführung des Verfahrens
PCT/EP2004/011856 WO2005040483A1 (fr) 2003-10-23 2004-10-20 Procede pour secher du linge et seche-linge pour mettre en oeuvre le procede

Publications (2)

Publication Number Publication Date
EP1682715A1 true EP1682715A1 (fr) 2006-07-26
EP1682715B1 EP1682715B1 (fr) 2007-07-11

Family

ID=34485007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04790664A Active EP1682715B1 (fr) 2003-10-23 2004-10-20 Procede pour secher du linge et seche-linge pour mettre en oeuvre le procede

Country Status (5)

Country Link
US (1) US20070039198A1 (fr)
EP (1) EP1682715B1 (fr)
AT (1) ATE366840T1 (fr)
DE (2) DE10349712B4 (fr)
WO (1) WO2005040483A1 (fr)

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ATE528434T1 (de) * 2005-10-25 2011-10-15 Arcelik As Trockner
DE102006003817A1 (de) * 2006-01-26 2007-08-02 BSH Bosch und Siemens Hausgeräte GmbH Trockner sowie Verfahren zur Behandlung eines Gutes
DE102006016294A1 (de) * 2006-04-06 2007-10-11 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät zur Pflege von Wäschestücken
CA2599353C (fr) * 2006-09-06 2011-05-24 Lg Electronics Inc. Secheuse avec fonction de detection de bouchage
US8024871B2 (en) * 2006-11-08 2011-09-27 Lg Electronics Inc. Exhaust structure for clothes dryer in apartment building
DE102006060031A1 (de) * 2006-12-19 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Vorrichtung zum Trocknen von Wäsche mittels eines Luftstromes sowie eine solche Vorrichtung enthaltendes Hausgerät
JP2008220817A (ja) * 2007-03-15 2008-09-25 Sanyo Electric Co Ltd 洗濯乾燥機
DE102007018410B3 (de) * 2007-04-17 2008-07-24 Miele & Cie. Kg Dichtung für einen Wäschetrockner
JP5226780B2 (ja) * 2007-06-07 2013-07-03 アクティエボラゲット エレクトロラックス 洗濯機と乾燥器
KR100930567B1 (ko) * 2007-10-15 2009-12-09 엘지전자 주식회사 의류 건조기
DE102008014305A1 (de) * 2008-03-14 2009-09-17 BSH Bosch und Siemens Hausgeräte GmbH Ablufttrockner mit Umluftanteil sowie Verfahren zu seinem Betrieb
DE102008020556A1 (de) * 2008-04-24 2009-10-29 BSH Bosch und Siemens Hausgeräte GmbH Ablufttrockner mit verminderter Kondensatbildung sowie Verfahren zu seinem Betrieb
DE102008021376A1 (de) * 2008-04-29 2009-11-05 BSH Bosch und Siemens Hausgeräte GmbH Ablufttrockner mit Gegenlufterkennung sowie Verfahren zu seinem Betrieb
WO2010013964A2 (fr) * 2008-08-01 2010-02-04 엘지전자 주식회사 Cuisinière avec four
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DE102008055087A1 (de) * 2008-12-22 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit Wärmepumpe und Umluftanteil sowie Verfahren zu seinem Betrieb
US20110283557A1 (en) * 2009-07-13 2011-11-24 Pellerin Milnor Corporation Modulated air flow clothes dryer and method
EP2278060B1 (fr) * 2009-07-14 2013-11-06 Flavio Pialorsi Dispositif de recirculation d'air pour une utilisation avec un séchoir
US20120090190A1 (en) * 2010-10-19 2012-04-19 Tai-Her Yang Tumble type drying device with thermal flow returning structure
US8572865B2 (en) 2010-10-29 2013-11-05 General Electric Company Apparatus and method for using a hybrid dryer tub for airflow improvement
JP2012125352A (ja) * 2010-12-14 2012-07-05 Samsung Electronics Co Ltd 衣類乾燥機
DE102012005199A1 (de) * 2012-03-16 2013-09-19 Herbert Kannegiesser Gmbh Verfahren zum Trocknen von Wäsche und Trockner
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US9574298B2 (en) 2013-06-07 2017-02-21 Electrolux Appliances Aktiebolag Laundry dryer with accessible recirculation air filter
DE102018201257A1 (de) 2018-01-29 2019-08-01 BSH Hausgeräte GmbH Gerät zum Trocknen von Wäsche und Verfahren zum Betreiben einer Wärmepumpe eines solchen Geräts
DE102018203158A1 (de) 2018-03-02 2019-09-05 BSH Hausgeräte GmbH Gerät zum Trocknen von Wäsche
EP3696313A1 (fr) 2019-02-15 2020-08-19 Miele & Cie. KG Appareil de traitement du linge, de préférence sèche-linge
DE102019207225A1 (de) * 2019-05-17 2020-11-19 BSH Hausgeräte GmbH Gerät zum Trocknen von Wäsche und Verfahren zum Betreiben einer Wärmepumpe eines solchen Geräts
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DE102020101597A1 (de) 2020-01-23 2021-07-29 Miele & Cie. Kg Wäschetrockner
DE102021202230A1 (de) 2021-03-09 2022-09-15 BSH Hausgeräte GmbH Kondensationstrockner mit Wärmepumpe und Umluftanteil sowie Verfahren zu seinem Betrieb

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Also Published As

Publication number Publication date
DE10349712A1 (de) 2005-06-09
US20070039198A1 (en) 2007-02-22
EP1682715B1 (fr) 2007-07-11
ATE366840T1 (de) 2007-08-15
DE10349712B4 (de) 2007-03-01
WO2005040483A1 (fr) 2005-05-06
DE502004004319D1 (de) 2007-08-23

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