EP1974089B1 - Trockner - Google Patents

Trockner Download PDF

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Publication number
EP1974089B1
EP1974089B1 EP06841311A EP06841311A EP1974089B1 EP 1974089 B1 EP1974089 B1 EP 1974089B1 EP 06841311 A EP06841311 A EP 06841311A EP 06841311 A EP06841311 A EP 06841311A EP 1974089 B1 EP1974089 B1 EP 1974089B1
Authority
EP
European Patent Office
Prior art keywords
thermometer
condenser
wet
dryer
drum
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.)
Not-in-force
Application number
EP06841311A
Other languages
English (en)
French (fr)
Other versions
EP1974089A1 (de
Inventor
Emre Ozturk
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1974089A1 publication Critical patent/EP1974089A1/de
Application granted granted Critical
Publication of EP1974089B1 publication Critical patent/EP1974089B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—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
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • 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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • 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

  • This invention relates to a dryer, which can measure the humidity and make a drying decision according to the measured value.
  • the condenser which is used to remove the moisture in the cycling air circulate for drying the laundry, is cooled by means of a fan and then the condensation of the cycling air is provided.
  • the fan vacuums the cooling air from outer environment and directs it to the condenser by means of a deflector.
  • the dehumidified drying air is sent into the drum as dried and heated by being passed through the heaters.
  • the cooling air exiting the condenser is transferred to the outside of the dryer. Therefore, by means of a condenser with an enhanced moisture condensation, a faster and more efficient operation of the dryer is provided.
  • the humidity is detected by the change in the resistance of a metal strip.
  • a plastic strip wound around the drum and a metal strip wound over the plastic strip are employed.
  • the dryness of the laundry is detected by the change in the resistance measured by a brush contacting the said metal strip.
  • the object of this invention is the realization of a dryer, which measures the relative humidity around the condenser, the drying efficiency of which is enhanced using the measured relative humidity value.
  • the relative humidity of the environment air surrounding the condenser is detected by the difference in temperatures measured by two thermometers, one of which is kept wet by a wetting means as the other directly contacting the environment air is kept dry, which are positioned side by side in the outlet of the channel whereby the drying air coming from the drum to into which the laundry to be dried are placed is directed, before the inlet of the condenser.
  • the amount of moisture is measured by a control card using the formulas determined by the producer with respect to the environment pressure and the measured temperature values and then the dryness of the laundry to be dried is detected.
  • thermometer is kept wet by a wick-like wetting means having one of its ends in a pool where the condensed water is collected as the other parts are wound around the wet thermometer.
  • thermometers one of which is continously kept wet by a wetting means as the other directly contacting the environment air is kept dry, which are positioned side by side in the channel outlet just before the entrance to the condenser and a third thermometer which is kept wet by another wetting means and positioned right after the condenser are employed.
  • the relative humidity of the environment is measured by the two thermometers positioned right before the condenser inlet, one of which is wet the other is dry, while the dehumidification performance of the condenser is detected by the wet thermometers which are positioned right before and after the condenser inlet.
  • the duration of the drying and heating steps is determined due to evaluated condenser performance.
  • Figure 1 - Is the perspective view of a dryer.
  • Figure 2 - Is the schematic view of a dryer comprising two thermometers positioned before the condenser.
  • FIG. 3 - Is the schematic view of a dryer comprising a pool placed before a condenser and two thermometers which are positioned in the pool.
  • Figure 4 - Is the schematic view of a dryer comprising two thermometers positioned before a condenser and a wet thermometer positioned after the condenser.
  • Figure 5 - Is the schematic view of a pool, a thermometer and a wick-like wetting means wound around the thermometer and positioned in a pool.
  • Figure 6 - Is the schematic view of a pool, a thermometer and a pipe-shaped wetting means wound around the thermometer and positioned in a pool.
  • the dryers (1) comprise a drum (2) in which the laundry to be dried is placed, a condenser (3) providing the condensation and thus seperation of the moisture in the wet air inside the drum (2) so as to remove the moisture of the wet laundry inside the drum (2), a channel (5) providing the drying air within the drum (2) to be transferred to the condenser (3), a drying fan (8) positioned inside the channel (5), providing the drying air to be sucked from the drum (2), passed through the condenser (3) and transferred to the outer environment, a thermometer (11) which is kept dry and positioned in the channel (5) right before the condenser (3), measuring the temperature of the environment, a thermometer (22) which is kept wet and positioned in the channel (5) right before the condenser (3), measuring the temperature of the environment, a wetting means (6) providing the thermometer (22) to be kept wet using the accumulated condensed water (N), and a control card (4) which keeps the record of the temperatures measured by the wet thermometer and the dry thermometer,
  • thermometers (11, 22) located next to each other measure the temperature of the environment while the cycling air coming from the drum (2) moves into the condenser (3).
  • the water vaporized on the thermometer (22) which is kept wet using the moisture in the environment decreases the temperature of the thermometer (22).
  • the control card (4) which traces, records the measurement values of these two thermometers (11, 22) and determines the relative humidity of the environment by using the difference between these values, executes the operation steps of the dryer in accordance with the determined relative humidity.
  • the control card (4) determines the relative humidity value by using the atmospheric pressure value and the temperature values measured by the thermometers (11, 22).
  • the atmospheric pressure is used as an average atmospheric pressure value determined by the producer or the environment pressure value which is measured by a barometer located on the dryer (1).
  • the pressure and the temperature values obtained, the correction factors, and the saturated water vapor pressure are all used in the water vapor pressure formulas and the relative humidity value is determined using these formulas.
  • the dryer (1) comprises a pool (7) positioned in the channel (5) right before the condenser (3), providing to collect the condensed water (N) so as to provide the wetting means (6) and thus the thermometer (22) contacting the wetting means (6) to be kept wet.
  • thermometer (22) is provided to be wet during the measurement.
  • a wetting means (6) is employed, having the form of a rope or a wick made of a liquid absorbing material, one end of which is immersed in the collected water (N) condensed, keeping the thermometer (22) wet with the water (N) it absorbs by being wound around the thermometer (22) ( Figure 5 ).
  • a wetting means (6) having the form of a tube is employed, one end of which is immersed in the collected condensed water (N), creating a passage between the thermometer (2) and itself by being wound around the thermometer (2), providing a permanent wet water layer on the surface of the thermometer (22) by the flux created by the vaporized water (N) through the passage ( Figure 6 ).
  • the dryer (1) comprises a third thermometer (33) positioned right after the condenser (3), which is kept wet by being in contact with the accumulated condensed water, providing to measure the air temperature of the environment.
  • the control card (4) evaluates the work efficiency of the condenser (3) by tracing the difference between the values measured by the thermometers (22, 33). In accordance with the work efficiency evaluated, the drying steps and the drying rations of the dryer are determined.
  • the relative humidity in the vicinity of the condenser (3) can be measured in a cheap and precise way, and the efficient working of the dryer is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (6)

  1. Trockner (1), umfassend eine Trommel (2), in die die zu trocknende Wäsche gelegt wird; einen Kondensator (3) zum Abtrennen der Feuchtigkeit in der feuchten Luft im Inneren der Trommel (2) durch Kondensieren derselben, um auf diese Weise die Feuchtigkeit aus der feuchten Wäsche in der Trommel (2) zu entfernen; und einen Kanal (5) zum Übertragen der Trocknungsluft im Inneren der Trommel (2) an den Kondensator (3); dadurch gekennzeichnet, dass er ferner Folgendes umfasst: ein Thermometer (11), das trocken gehalten wird, das unmittelbar vor dem Kondensator (3) im Kanal (5) angeordnet ist, und das dazu dient, die Temperatur der Trocknungsluft zu messen; ein Thermometer (22), das feucht gehalten wird, das unmittelbar vor dem Kondensator (3) im Kanal (5) angeordnet ist, und das dazu dient, die Temperatur der Trocknungsluft zu messen; ein Befeuchtungsmittel zum Feuchthalten des Thermometers (22) unter Verwendung des akkumulierten Kondensationswassers (N); und eine Steuerkarte (4), die die Temperaturwerte, die von dem feuchten Thermometer (22) und dem trockenen Thermometer (11) gemessen wurden sowie die Differenz zwischen diesen Werten aufzeichnet, um die relative Feuchtigkeit der Trocknungsluft zu ermitteln, und um anhand der ermittelten relativen Luftfeuchtigkeitswerte die Trockendauer zu bestimmen.
  2. Trockner (1) nach Anspruch 1, dadurch gekennzeichnet, dass er ferner ein Becken (7) umfasst, das unmittelbar vor dem Kondensator (3) im Kanal (5) angeordnet ist und das Befeuchtungsmittel zum Feuchthalten des Thermometers (22) bereitstellt, indem es das Kondensationswasser (N) auffängt.
  3. Trockner (1) nach Anspruch 1 oder 2, gekennzeichnet durch ein Befeuchtungsmittel (6) in Form einer Schnur oder eines Dochts aus einem absorptionsfähigen Material, dessen eines Ende in das Wasser (N) getaucht ist, das sich durch Kondensation angesammelt hat, und das um das Thermometer (22) gewickelt ist und mittels des von ihm absorbierten Wassers das Thermometer feucht hält.
  4. Trockner (1) nach Anspruch 1 oder 2, gekennzeichnet durch ein Befeuchtungsmittel (6) in Form einer Röhre, deren eines Ende in das angesammelte Kondensationswasser (N) getaucht ist, und die einen Durchlass zwischen dem Thermometer (22) und sich selbst herstellt, indem sie um das Thermometer (22) gewickelt ist, und aufgrund des Fließens des verdampften Wassers (N) durch diesen Durchlass eine permanent feuchte Wasserschicht an der Fläche des Thermometers (22) bereitstellt.
  5. Trockner (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass er ferner ein Thermometer (33) umfasst, das unmittelbar nach dem Kondensator (3) angeordnet ist, und das feucht gehalten wird, indem es mit dem akkumulierten Kondensationswasser in Kontakt gehalten wird, und das dazu dient, die Umgebungstemperatur zu messen.
  6. Trockner (1) nach Anspruch 5, dadurch gekennzeichnet, dass die Steuerkarte (4) die Arbeitseffizienz des Kondensators (3) ermittelt, indem sie die Differenz zwischen den Werten verfolgt, die von den Thermometern (22, 33) gemessen werden.
EP06841311A 2005-12-30 2006-12-08 Trockner Not-in-force EP1974089B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200505408 2005-12-30
PCT/EP2006/069488 WO2007077094A1 (en) 2005-12-30 2006-12-08 A dryer

Publications (2)

Publication Number Publication Date
EP1974089A1 EP1974089A1 (de) 2008-10-01
EP1974089B1 true EP1974089B1 (de) 2009-02-25

Family

ID=37896175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06841311A Not-in-force EP1974089B1 (de) 2005-12-30 2006-12-08 Trockner

Country Status (5)

Country Link
EP (1) EP1974089B1 (de)
AT (1) ATE423865T1 (de)
DE (1) DE602006005399D1 (de)
DK (1) DK1974089T3 (de)
WO (1) WO2007077094A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007061519A1 (de) * 2007-12-20 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrocknungsgerät mit einer Feuchtigkeitsbestimmungseinrichtung und Ver-fahren zum Betreiben eines Wäschetrocknungsgeräts
CN201321571Y (zh) * 2008-11-25 2009-10-07 博西华电器（江苏）有限公司 家用衣物烘干设备
CN201386218Y (zh) * 2009-03-02 2010-01-20 博西华电器（江苏）有限公司 家用衣物烘干设备
CN103662116A (zh) * 2012-09-25 2014-03-26 昆山尚达智机械有限公司 一种干燥物料包装防吸潮装置
CN114182510A (zh) * 2021-12-31 2022-03-15 广东美的白色家电技术创新中心有限公司 干衣机控制方法、装置、干衣机及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331688A1 (de) * 1973-06-22 1975-01-16 Licentia Gmbh Verfahren und vorrichtung zur bestimmung der waeschefeuchte
DE3111426A1 (de) * 1981-03-24 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "waeschetrockner"
DE19842644A1 (de) * 1998-09-17 2000-03-23 Bsh Bosch Siemens Hausgeraete Verfahren zur Überwachung des Trocknungsluftstromes in einem Haushaltwäschetrockner sowie nach diesem Verfahren arbeitender Haushaltwäschetrockner
EP1420104B1 (de) * 2002-11-15 2007-05-16 CANDY S.p.A. Verfahren zum Trocknen von Wäsche in einer Trocknungsvorrichtung
KR100480929B1 (ko) * 2003-08-12 2005-04-07 엘지전자 주식회사 의류건조기의 건조 제어방법

Also Published As

Publication number Publication date
ATE423865T1 (de) 2009-03-15
WO2007077094A1 (en) 2007-07-12
EP1974089A1 (de) 2008-10-01
DE602006005399D1 (de) 2009-04-09
DK1974089T3 (da) 2009-06-02

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