EP1682715A1 - Verfahren zum trocknen von wä sche und wäschetrockner zur durchführung des verfahrens - Google Patents
Verfahren zum trocknen von wä sche und wäschetrockner zur durchführung des verfahrensInfo
- 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
Links
- 238000001035 drying Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000011156 evaluation Methods 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000003134 recirculating effect Effects 0.000 description 7
- 239000004753 textile Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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)
Description
Claims
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 (de) | 2003-10-23 | 2004-10-20 | Verfahren zum trocknen von wäsche und wäschetrockner zur durchführung des verfahrens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1682715A1 true EP1682715A1 (de) | 2006-07-26 |
EP1682715B1 EP1682715B1 (de) | 2007-07-11 |
Family
ID=34485007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04790664A Active EP1682715B1 (de) | 2003-10-23 | 2004-10-20 | Verfahren zum trocknen von wä sche und wäschetrockner zur durchführung des verfahrens |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070039198A1 (de) |
EP (1) | EP1682715B1 (de) |
AT (1) | ATE366840T1 (de) |
DE (2) | DE10349712B4 (de) |
WO (1) | WO2005040483A1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8015726B2 (en) * | 2005-06-23 | 2011-09-13 | Whirlpool Corporation | Automatic clothes dryer |
EP1945849B1 (de) * | 2005-10-25 | 2011-10-12 | Arcelik Anonim Sirketi | 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 (en) * | 2006-09-06 | 2011-05-24 | Lg Electronics Inc. | Dryer with clogging detecting function |
EP1921201A3 (de) * | 2006-11-08 | 2010-07-21 | LG Electronics Inc. | Abluftanlage für einen Wäschetrockner in einem Mehrfamilienhaus |
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 |
EP2155950B1 (de) * | 2007-06-07 | 2013-01-23 | Aktiebolaget Electrolux | Waschmaschine und trockner |
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 (ko) * | 2008-08-01 | 2010-02-04 | 엘지전자 주식회사 | 오븐레인지 |
US7870799B2 (en) | 2008-09-11 | 2011-01-18 | Whirlpool Corporation | Method and apparatus for testing the air flow in a clothes dryer |
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 (de) * | 2009-07-14 | 2013-11-06 | Flavio Pialorsi | Umluftvorrichtung zur Verwendung mit einem Trockner |
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 |
DE102012008193A1 (de) * | 2012-04-26 | 2013-10-31 | Herbert Kannegiesser Gmbh | Verfahren zum Trocknen von Wäschestücken |
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 |
DE102020101575A1 (de) | 2019-02-15 | 2020-08-20 | Miele & Cie. Kg | Wäschepflegegerät, vorzugsweise Trockner |
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 |
DE102020101588A1 (de) | 2020-01-23 | 2021-07-29 | Miele & Cie. Kg | Wäschetrockner |
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 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2676418A (en) * | 1951-02-27 | 1954-04-27 | Gen Motors Corp | Dehumidifier and drier |
US3538614A (en) * | 1968-09-09 | 1970-11-10 | Stearns Roger Corp | Method and apparatus for recycling dryer stack gases |
DE1959207A1 (de) * | 1969-11-26 | 1971-05-27 | Licentia Gmbh | Verfahren zum Trocknen von Waesche und Vorrichtung zur Durchfuehrung des Verfahrens |
DE2220425C3 (de) * | 1972-04-26 | 1987-06-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und Vorrichtung zum Trocknen von Wäsche |
US4133636A (en) * | 1977-06-30 | 1979-01-09 | Blu-Surf, Inc. | Tentor |
US4268247A (en) * | 1979-05-24 | 1981-05-19 | Challenge-Cook Bros., Incorporated | Method for drying fabrics |
US4326342A (en) * | 1980-08-07 | 1982-04-27 | Midland-Ross Corporation | Multi-zone oven with cool air modulation |
US4549362A (en) * | 1982-01-19 | 1985-10-29 | Haried John C | Programmable air recirculator/mixer for a fabric dryer |
DE3202586A1 (de) * | 1982-01-27 | 1983-08-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und vorrichtung zum trocknen von waesche |
DE3819514A1 (de) * | 1988-06-08 | 1989-12-14 | Passat Maschinenbau Gmbh | Steuersystem mit ventilklappen fuer einen trockner |
DE19755916A1 (de) * | 1997-12-10 | 1999-06-17 | Aeg Hausgeraete Gmbh | Wäschetrockner |
DE20010728U1 (de) * | 2000-06-16 | 2000-09-14 | Senkingwerk Gmbh, 31137 Hildesheim | Trockner und Umluftanordnung für denselben |
-
2003
- 2003-10-23 DE DE10349712A patent/DE10349712B4/de not_active Expired - Fee Related
-
2004
- 2004-10-20 US US10/576,455 patent/US20070039198A1/en not_active Abandoned
- 2004-10-20 EP EP04790664A patent/EP1682715B1/de active Active
- 2004-10-20 AT AT04790664T patent/ATE366840T1/de not_active IP Right Cessation
- 2004-10-20 WO PCT/EP2004/011856 patent/WO2005040483A1/de active IP Right Grant
- 2004-10-20 DE DE502004004319T patent/DE502004004319D1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005040483A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20070039198A1 (en) | 2007-02-22 |
DE10349712A1 (de) | 2005-06-09 |
WO2005040483A1 (de) | 2005-05-06 |
DE10349712B4 (de) | 2007-03-01 |
DE502004004319D1 (de) | 2007-08-23 |
ATE366840T1 (de) | 2007-08-15 |
EP1682715B1 (de) | 2007-07-11 |
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