EP1236826A2 - Procédé pour changer le programme dans un sèche-linge domestique - Google Patents

Procédé pour changer le programme dans un sèche-linge domestique Download PDF

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Publication number
EP1236826A2
EP1236826A2 EP02003232A EP02003232A EP1236826A2 EP 1236826 A2 EP1236826 A2 EP 1236826A2 EP 02003232 A EP02003232 A EP 02003232A EP 02003232 A EP02003232 A EP 02003232A EP 1236826 A2 EP1236826 A2 EP 1236826A2
Authority
EP
European Patent Office
Prior art keywords
program
laundry
moisture
time
cycle
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.)
Withdrawn
Application number
EP02003232A
Other languages
German (de)
English (en)
Other versions
EP1236826A3 (fr
Inventor
Andrew Charles Patent Dept. Reck
Thomas Patent Dept. Gross
Gabriele Patent Dept. Papi
Ralf Patent Dept. Haselmeier
Luise Patent Dept. Christmann
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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
Priority claimed from DE10200975A external-priority patent/DE10200975C2/de
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP1236826A2 publication Critical patent/EP1236826A2/fr
Publication of EP1236826A3 publication Critical patent/EP1236826A3/fr
Withdrawn legal-status Critical Current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
    • D06F58/32—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
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
    • 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
    • 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
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • D06F2103/10—Humidity expressed as capacitance or resistance
    • 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
    • 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
    • D06F2105/54—Changing between normal operation mode and special operation modes, e.g. service mode, component cleaning mode or stand-by mode
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F34/18—Condition of the laundry, e.g. nature or weight

Definitions

  • the invention relates to a method for changing the program cycle of a household dryer while drying laundry, wherein the program can be changed and canceled depending on the moisture of the laundry and the elapsed time of the selected program, wherein the laundry comes into contact with moisture sensors during the drying process, which moisture sensors measure the contact frequency and moisture of the laundry and provide measured values for changing the program, indicating the remaining drying time and canceling shutting off the initiated program.
  • a specific laundry parameter can be taken from the laundry after it was removed from the washer, that can be used to select the drying program when the laundry is placed in the dryer. This method is very cumbersome.
  • Another method keeps - after the start - at least three widely divergent measurement variables, such as electrical laundry resistance, time characteristic of the temperature at the loading side of the drum, temperature differences/temperature increase at the loading side of the drum in a fixed time frame, ambient temperature to determine the expected drying time of a dryer.
  • This method requires complex sensor and analysis work.
  • the object of the invention is to provide a method of the kind indicated in the preamble that uses simple sensor and circuit configuration to obtain a measuring value for a large range of the laundry load, which measured value can be used with satisfactory reproducibility to change the program cycle, display the remaining drying time and shut off the household dryer.
  • this objective is achieved in that the moisture sensors are attached to lateral grids provided at a level above the lowest point of the laundry drum between door and laundry drum, that the time intervals between the individual contacts with pre-determined minimum moisture are recorded by the moisture sensors and that these time intervals are used to calculated statistical means, and that the changes of the program parameters, the display of the remaining drying time and the shut-off of the program are calculated based on the statistical means of the time intervals calculated in this way.
  • the moisture sensors are disposed outside of the laundry drum and attached to the slanted grid between the door and the laundry drum and are configured in a position to the lowest point of the laundry drum, which is higher. The result of this positioning is that the more frequently pieces of laundry fall laterally on the grid and slide over it, the larger the load volume of laundry .
  • the laundry contacts with the moisture sensors increase in proportion to the load volume.
  • the statistically derived means of the time intervals of the contacts result in uniquely distinguishable and evaluable measurement variables for changing the program cycle, deriving the display for the remaining drying time and shutting-off the household dryer. This method results in a significantly more informational determination of frequency and thus in a more accurate method.
  • One embodiment may provide that - when the machine is switched on - the initial values for the drying cycle are preset by an experimentally determined, designated standard program preset by the user's program selection and device-specific options (such as dryness, cool-down cycle, wrinkle protection).
  • the drying cycle can be initiated with this start program, and then it can be determined that the intervals between the individual contacts with the preset minimum moisture is detected only after the preset time after the program start.
  • the recorded statistical means of the time intervals of the individual contacts is used as a measure for the load volume.
  • the measurement can be performed such that the measured values of the moisture sensors are determined continuously or in intervals and the allocated remaining drying time is displayed accordingly.
  • the remaining moisture of the laundry is measured after a pre-set part of the program cycle time and/or compared with the selected final degree of dryness.
  • the household dryer can be shut off if both values match.
  • the method can be further improved such that the recorded measured values of the moisture sensors are taken into consideration depending on the different fabric types of the loaded laundry with differing weights for changing the program cycle time, whereas the fabric types can be pre-set via the program settings.
  • laundry drum 1 is rotated around an axis 8.
  • Arrow 2 symbolizes an air current that is generated by means of a blower 7 and is guided in an air channel 4 via a heater 3 into the laundry drum 1.
  • the laundry drum 1 is filled with laundry items 16 that are carried by blades 11 that repeatedly drop them into the bottom area of the laundry drum 1.
  • a grid 14 transitions into the outgoing air channel as shown by the arrow 5.
  • the heated air 13 passes into the interior of the laundry drum 1, removes moisture from the moist laundry, and, as shown by the arrow 15, exits the laundry drum 1 via the grid 14.
  • the grid 14 is disposed between the door 6 and the laundry drum 1 and is equipped with two moisture sensors 9 and 10 at a distance from each other.
  • the laundry items 16 falling in the laundry drum 1 are guided increasingly over grid 14 on moisture sensors 9 and 10 - depending on the laundry load - which moisture sensors are used as electrodes to measure resistance, and the laundry falls back into the laundry drum 1.
  • the connection via the laundry items 16 must fall below a resistance value that is determined by the minimum moisture of the laundry item 16. Only then is the contact with the moisture sensors registered and used to change the program cycle time.
  • the preset resistance value and hence the preset minimum moisture can vary depending on the program selection and specific user settings and is contained in the initial value of the designated, experimentally determined standard program, whereas the program cycle is also preset in the standard program, and is changed after a preset time for example, after a few minutes depending on the measured values determined by the moisture sensors. This procedure can be repeated at further intervals.
  • the moisture sensors 9 and 10 are connected with an evaluation circuit in the program control and can thus act directly upon it.
  • the number of times the laundry items 16 contact the moisture sensors 9 and 10 are counted, but only have an effect when the required minimum moisture is measured.
  • the progress of the drying cycle is accordingly monitored and changed, whereby the weighting of the change can be dependent on the selected program.
  • the absolute moisture can be measured after a preset part of the overall program cycle time and compared with a desired degree of drying which the user presets when selecting the program. When the degree of drying is reached, the drying cycle can also be terminated prematurely, and the cooling down and shutting off process of the household dryer can be started.
  • the program cycle time of the designated standard program is displayed at the beginning of the drying cycle and is correspondingly changed when changes in the cycle time occur.
  • the user is constantly informed about the program cycle time at the beginning and after the changes occur.
  • the intervals between the individual contacts of moisture sensors 9 and 10 are measured in the evaluation circuit that is downstream of moisture sensors 9 and 10, and a statistical mean per interval is derived.
  • the course of this statistical mean is almost proportionate to the laundry load, which means that the statistical mean can be used to a large extent as a measurement variable for the change of the program cycle, the derivation of the display of the remaining drying time and the shut-off of the household dryer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP02003232A 2001-03-02 2002-02-20 Procédé pour changer le programme dans un sèche-linge domestique Withdrawn EP1236826A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10110165 2001-03-02
DE10110165 2001-03-02
DE10200975 2002-01-12
DE10200975A DE10200975C2 (de) 2001-03-02 2002-01-12 Verfahren zum Verändern des Programmablaufes bei einem Haushaltswäschetrockner

Publications (2)

Publication Number Publication Date
EP1236826A2 true EP1236826A2 (fr) 2002-09-04
EP1236826A3 EP1236826A3 (fr) 2003-10-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02003232A Withdrawn EP1236826A3 (fr) 2001-03-02 2002-02-20 Procédé pour changer le programme dans un sèche-linge domestique

Country Status (1)

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EP (1) EP1236826A3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473402A1 (fr) * 2003-04-28 2004-11-03 Lg Electronics Inc. Ensemble capteur pour un séchoir automatique
EP1621663A2 (fr) * 2004-06-16 2006-02-01 Samsung Electronics Co., Ltd. Sèche-linge et procédé d'affichage du temps sur celui-ci
EP1736761A1 (fr) * 2005-06-24 2006-12-27 Electrolux Home Products Corporation N.V. Capteur d'humidité et sèche-linge avec capteur d'humidité
CN109267307A (zh) * 2017-07-18 2019-01-25 无锡小天鹅股份有限公司 烘干剩余时间确定方法、设备及衣物处理装置
CN110295490A (zh) * 2019-06-14 2019-10-01 青岛海尔滚筒洗衣机有限公司 一种衣物烘干方法及衣物处理设备
CN113136716A (zh) * 2020-01-19 2021-07-20 青岛海尔滚筒洗衣机有限公司 干衣机负载重量获取方法、装置、干衣机及存储介质
CN113417122A (zh) * 2021-06-25 2021-09-21 无锡飞翎电子有限公司 衣物烘干设备及其控制方法、装置及存储介质
CN114775254A (zh) * 2022-04-13 2022-07-22 Tcl家用电器（合肥）有限公司 干衣机的控制方法、控制装置、存储介质和干衣机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300869A (en) * 1964-02-28 1967-01-31 Maytag Co Clothes drier structure and control
US4738034A (en) * 1985-12-16 1988-04-19 Kabushiki Kaisha Toshiba Drying machine
US4899464A (en) * 1988-11-14 1990-02-13 Whirlpool Corporation Dryer outlet grill with sensor
US5651194A (en) * 1994-04-26 1997-07-29 Kabushiki Kaisha Toshiba Apparatus and method for controlling reversible dryer
WO1997032071A1 (fr) * 1996-02-29 1997-09-04 Southcorp Whitegoods Pty. Ltd. Appareil de sechage
US5764542A (en) * 1996-01-11 1998-06-09 Eaton Corporation Noise filtering utilizing running average
EP0898009A1 (fr) * 1997-08-21 1999-02-24 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour déterminer le chargement d'un sèche -linge
DE19802616A1 (de) * 1998-01-24 1999-07-29 Aeg Hausgeraete Gmbh Wäschetrockenmaschine, insbesondere Haushaltstrockner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300869A (en) * 1964-02-28 1967-01-31 Maytag Co Clothes drier structure and control
US4738034A (en) * 1985-12-16 1988-04-19 Kabushiki Kaisha Toshiba Drying machine
US4899464A (en) * 1988-11-14 1990-02-13 Whirlpool Corporation Dryer outlet grill with sensor
US5651194A (en) * 1994-04-26 1997-07-29 Kabushiki Kaisha Toshiba Apparatus and method for controlling reversible dryer
US5764542A (en) * 1996-01-11 1998-06-09 Eaton Corporation Noise filtering utilizing running average
WO1997032071A1 (fr) * 1996-02-29 1997-09-04 Southcorp Whitegoods Pty. Ltd. Appareil de sechage
EP0898009A1 (fr) * 1997-08-21 1999-02-24 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour déterminer le chargement d'un sèche -linge
DE19802616A1 (de) * 1998-01-24 1999-07-29 Aeg Hausgeraete Gmbh Wäschetrockenmaschine, insbesondere Haushaltstrockner

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473402A1 (fr) * 2003-04-28 2004-11-03 Lg Electronics Inc. Ensemble capteur pour un séchoir automatique
US6941678B2 (en) 2003-04-28 2005-09-13 Lg Electronics Inc. Sensor assembly for automatic dryer
EP1621663A2 (fr) * 2004-06-16 2006-02-01 Samsung Electronics Co., Ltd. Sèche-linge et procédé d'affichage du temps sur celui-ci
EP1621663A3 (fr) * 2004-06-16 2007-07-11 Samsung Electronics Co., Ltd. Sèche-linge et procédé d'affichage du temps sur celui-ci
EP1736761A1 (fr) * 2005-06-24 2006-12-27 Electrolux Home Products Corporation N.V. Capteur d'humidité et sèche-linge avec capteur d'humidité
EP1744152A1 (fr) 2005-06-24 2007-01-17 Electrolux Home Products N.V. Capteur d'humidité et sèche-linge avec capteur d'humidité
CN109267307A (zh) * 2017-07-18 2019-01-25 无锡小天鹅股份有限公司 烘干剩余时间确定方法、设备及衣物处理装置
CN109267307B (zh) * 2017-07-18 2022-07-15 合肥美的洗衣机有限公司 烘干剩余时间确定方法、设备及衣物处理装置
CN110295490A (zh) * 2019-06-14 2019-10-01 青岛海尔滚筒洗衣机有限公司 一种衣物烘干方法及衣物处理设备
CN110295490B (zh) * 2019-06-14 2023-10-27 青岛海尔洗涤电器有限公司 一种衣物烘干方法及衣物处理设备
CN113136716A (zh) * 2020-01-19 2021-07-20 青岛海尔滚筒洗衣机有限公司 干衣机负载重量获取方法、装置、干衣机及存储介质
CN113417122A (zh) * 2021-06-25 2021-09-21 无锡飞翎电子有限公司 衣物烘干设备及其控制方法、装置及存储介质
CN114775254A (zh) * 2022-04-13 2022-07-22 Tcl家用电器（合肥）有限公司 干衣机的控制方法、控制装置、存储介质和干衣机
CN114775254B (zh) * 2022-04-13 2024-03-12 Tcl家用电器（合肥）有限公司 干衣机的控制方法、控制装置、存储介质和干衣机

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