EP1581687B1 - A washer/dryer using microwave and its control method - Google Patents

A washer/dryer using microwave and its control method Download PDF

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Publication number
EP1581687B1
EP1581687B1 EP03796256.0A EP03796256A EP1581687B1 EP 1581687 B1 EP1581687 B1 EP 1581687B1 EP 03796256 A EP03796256 A EP 03796256A EP 1581687 B1 EP1581687 B1 EP 1581687B1
Authority
EP
European Patent Office
Prior art keywords
microwave
washer
dryer
metal
detector
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.)
Expired - Lifetime
Application number
EP03796256.0A
Other languages
German (de)
French (fr)
Other versions
EP1581687A1 (en
Inventor
Cem Kural
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 EP1581687A1 publication Critical patent/EP1581687A1/en
Application granted granted Critical
Publication of EP1581687B1 publication Critical patent/EP1581687B1/en
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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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
    • 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
    • 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
    • D06F2103/64—Radiation, e.g. microwaves
    • 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
    • D06F2105/50—Starting machine operation, e.g. delayed start or re-start after power cut
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/74—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • D06F58/266—Microwave heating equipment
    • 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

Definitions

  • This invention relates to a washer/dryer using microwave which reduces the risk of electrical arcing and an operation method providing the safe use of the washer/dryer.
  • microwave is used in the washing/drying cycles of preferably the front loaded washer/dryers in household appliances.
  • the metal accessories left and/or forgotten on the laundry can cause the electrical arcing and scorch the laundry.
  • an arc detection device is defined for the washer/dryers wherein the microwave is used.
  • the object of this invention is to provide a washer/dryer and a control method which use microwave and prevents the loading of the metal objects into the place where the microwave is used.
  • the washer/dryer (1) using microwave comprises a cover (11), which helps the loading and removal of the objects, a microwave applicator (2), which yields and applies the microwave and a control card (6) comprising preferably one or more memories.
  • the microwave applicator (2) comprises a magnetron (3) which yields microwave, an isolator (4) which protects the environment from the reflecting power, a microwave detector (7) either crystal or diode which controls the power of the microwave by detecting the excessive powers on the isolator (4) by means of the control card (6) and a wave guide (5) which leads the applied microwave to the desired direction.
  • the washer/dryer (1) which is the subject of this invention comprises a metal detector (8), which is placed not to be affected by the microwave and provides the detection of the arcing metal objects and one or more warning device (9) wherein the control card (6) informed by the metal detector (8) while the objects containing metal are being placed into the washer/ dryer (1) and warns the user by visual or audio means.
  • the warning device (9) comprises one or more select buttons (10), which provides the user with options such as the continuation of the operation of the warning device and/or applies them.
  • the main object of the microwave detector (7) is to prevent the arcing during the operation when the metal detector (8) does not work, it detects the metal objects by means of the differences in the reflections resulted from the control-targeted low amounts of microwave transmission in the first operation conditions and provides the warning for the user based on the control card (6), end of the operation or continuation of the operation without the use of microwave.
  • a front loaded washer/dryer (1) comprises a drum (21) pivotally rotating around an axis in which the laundry is put and a tub (22) in which the drum (21) moves.
  • Microwave applicator (2) is preferably on the tub (22) and the metal detector (8) is preferably on the tub (22) in a place where it is not affected by the microwave resulted from the microwave applicator (2) and is on the close side of the cover (11). Therefore the metal objects loaded into the device from the cover (11) part can be easily detected.
  • An operation method for the washer/dryer (1) which is the subject of this invention, comprises the steps of;
  • the washer/dryer which is the subject of this invention, can stop the arcing during the operation by detection, it can prevent the arcing by means of the detection of the causative objects prior the operation.

Landscapes

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

Description

  • This invention relates to a washer/dryer using microwave which reduces the risk of electrical arcing and an operation method providing the safe use of the washer/dryer.
  • In the prior art, microwave is used in the washing/drying cycles of preferably the front loaded washer/dryers in household appliances. In case wherein microwave is used in the washer/dryers, the metal accessories left and/or forgotten on the laundry can cause the electrical arcing and scorch the laundry.
  • In International Patent Application WO 01/57457 , an arc detection device is defined for the washer/dryers wherein the microwave is used.
  • In American Patents US5424515 and US 5325600 of the other embodiments, a device and a method is disclosed for the prevention of scorching of the fabric subjected to the microwave by means of the detection of the arcing in the microwave environment.
  • American Patent US5270509 discloses a microwave drying system and method in which arcing is detected by a sudden drop in electric field strength within the drying chamber.
  • The object of this invention is to provide a washer/dryer and a control method which use microwave and prevents the loading of the metal objects into the place where the microwave is used.
  • In order to achieve the object of this invention, a washer/dryer and a control method wherein the microwave is used is described with the attached drawings.
    • Figure 1 is a schematic view of a washer/dryer using microwave,
    • Figure 2 is a flow chart of a control method.
  • In figures each part has been numbered corresponding the following:
    • 1. Washer/dryer
    • 2. Microwave applicator
    • 3. Magnetron
    • 4. Isolator
    • 5. Wave guide
    • 6. Control card
    • 7. Microwave detector
    • 8. Metal detector
    • 9. Warning device
    • 10. Select button
    • 11. Cover
    • 21. Drum
    • 22. Tub
  • The washer/dryer (1) using microwave comprises a cover (11), which helps the loading and removal of the objects, a microwave applicator (2), which yields and applies the microwave and a control card (6) comprising preferably one or more memories. The microwave applicator (2) comprises a magnetron (3) which yields microwave, an isolator (4) which protects the environment from the reflecting power, a microwave detector (7) either crystal or diode which controls the power of the microwave by detecting the excessive powers on the isolator (4) by means of the control card (6) and a wave guide (5) which leads the applied microwave to the desired direction.
  • The washer/dryer (1) which is the subject of this invention comprises a metal detector (8), which is placed not to be affected by the microwave and provides the detection of the arcing metal objects and one or more warning device (9) wherein the control card (6) informed by the metal detector (8) while the objects containing metal are being placed into the washer/ dryer (1) and warns the user by visual or audio means.
  • The warning device (9) comprises one or more select buttons (10), which provides the user with options such as the continuation of the operation of the warning device and/or applies them.
  • However the main object of the microwave detector (7) is to prevent the arcing during the operation when the metal detector (8) does not work, it detects the metal objects by means of the differences in the reflections resulted from the control-targeted low amounts of microwave transmission in the first operation conditions and provides the warning for the user based on the control card (6), end of the operation or continuation of the operation without the use of microwave.
  • In a preferred embodiment of the invention, preferably a front loaded washer/dryer (1) comprises a drum (21) pivotally rotating around an axis in which the laundry is put and a tub (22) in which the drum (21) moves. Microwave applicator (2) is preferably on the tub (22) and the metal detector (8) is preferably on the tub (22) in a place where it is not affected by the microwave resulted from the microwave applicator (2) and is on the close side of the cover (11). Therefore the metal objects loaded into the device from the cover (11) part can be easily detected.
  • An operation method for the washer/dryer (1), which is the subject of this invention, comprises the steps of;
    • Starting the method to apply without the option of the user (200), as the washer/dryer (1) is operated,
    • Controlling the metal detector (8) whether it works or not (201),
      • o Controlling (201) the metal detector (8), if the metal detector (8) does not work or an object comprising a metal is not detected,
      • o Closing (102) the cover (11),
      • o Controlling (201) the metal detector (8), if the metal detector (8) works, objects comprising metals are detected by the metal detector (8) (100),
      • o Controlling the object loaded into the washer/dryer (1) whether it contains metal or not (101),
      • o Controlling (102) the cover (11), if the object loaded into the washer/dryer (1) is detected not to contain metal during its control step (101),
      • o Warning the user by means of an warning device (103) due to the risk of arcing (103), if the object loaded into the washer/dryer (1) is detected to contain metal during its control step (101),
      • o Controlling the select button (10) whether it is used or not (104),
      • o Stopping the machine and returning to the beginning step (200), when the select button (10) is controlled (104), if the select button (104) is used,
      • o Awaiting until the select button (10) is used for the period determined by the producer (105), when the select button (10) is controlled (104), if the select button (104) is not used,
      • o Controlling the cover (11) whether it is closed or not (102),
      • o Restarting the method and the procedures again (200), if the cover (11) is not closed,
      • o Operating (120) microwave detector (7), When the cover (11) is controlled, if it is closed,
      • o Operating (120) microwave detector,
      • o Transmitting microwave to the environment at a low level (121),
      • o Detecting microwave transmitted in the environment (128),
      • o Controlling the detected microwave amount whether it is higher than the values determined by the producer to harm the user or not (122),
      • o Continuing to operate in the way predetermined by the consumer (123), if there is no difference in the reflection of the transmitted microwave,
      • o Stopping (124) the machine and returning to the beginning step (200),
      • o Stopping transmission microwave by the information received in the control card (125), if there is a difference in the reflection of the transmitted microwave in the control step whether the detected microwave amount is higher than the values predetermined by the producer (122),
      • o Warning the user (126),
      • o Detecting whether the metal object is removed or not (127) by metal detector (8),
      • o Continuing to operate in the way selected by the consumer (123), if the metal object is detected to be removed (127),
      • o Awaiting for the period determined by the producer (130), if the metal object is detected not to be removed (127),
      • o Warning the user (131),
      • o Asking to the user to select to operate with or without microwave (132),
      • o Stopping (133) the machine and returning to the beginning step (200), if it is required to operate with microwave,
      • o Operating the machine without microwave (134), if it is required to operate without microwave,
      • o Stopping (135) the machine and returning to the beginning step following the completion of the procedures (200).
  • In addition to the fact that the washer/dryer, which is the subject of this invention, can stop the arcing during the operation by detection, it can prevent the arcing by means of the detection of the causative objects prior the operation.

Claims (5)

  1. A washer/dryer (1) using microwave, comprising a microwave applicator (2), a control card (6) which controls the microwave applicator (2), a microwave detector (7) which detects metal objects by means of the differences in the reflections resulted from the control-targeted low amounts of microwave transmission, a drum (21) pivotally rotating around an axis in which the laundry is put and a tub (22) in which the drum (21) moves,
    characterized by
    a metal detector (8) which detects metal objects, which could cause arcing, while they are being loaded, which also detects whether metal objects are removed, and which warns the user and thus provides safe operation and control of the washer/dryer (1), said metal detector being mounted in a position not to be affected by the transmitted microwave therein, wherein the washer/dryer (1) is configured such that the transmission of microwave is stopped if the microwave amount detected by the microwave detector (7) is higher than the values predetermined by the producer, and such that the operation is only then continued if it is detected by the metal detector (8) that the metal object is removed, wherein the said metal detector (8) is located on the tub (22) in a place where it can detect metal objects being loaded into the drum (21) or removed from the drum (21).
  2. A washer/dryer (1) as defined in Claim 1 characterized in that the microwave applicator (2) comprises the microwave detector (7) which, despite its main function for the prevention of arcing, when the metal detector (8) does not function is controlled by the control card (6) so as to warn the user, stops the operation or provides the operation without microwave option by detecting the metal objects by the differences in the reflections of the control-targeted transmitted microwave at low amounts in the first operation steps.
  3. A washer/dryer (1) as defined in any of the Claims above characterized with one or more warning device (9) in that the control card (6) informed by the metal detector (8) when the metal objects are loaded warns the user by visual and/or audio means.
  4. A washer/dryer as defined in any of the Claims above characterized in that a warning device (9) comprises one or more select button (10) providing the users with options like the continuation of the operation and its application.
  5. A control method for a washer/dryer (1) as defined in any of the Claims above comprising the steps of;
    - Starting the method which is applied (200), as the washer/dryer (1) is operated,
    - Controlling the metal detector (8) whether it works or not (201),
    o Controlling (201) the metal detector (8), if the metal detector (8) does not work,
    Closing the cover (11) of the tub (22) (102),
    Controlling (201) the metal detector (8), if the metal detector (8) works, objects comprising metals are detected by the metal detector (8) (100),
    Controlling the object loaded into the washer/dryer (1) whether it contains metal or not (101),
    o Controlling (102) the cover (11) whether it is closed or not, if the object loaded into the washer/dryer (1) was detected not to contain metal during the above step "Controlling the object loaded into the washer/dryer (1) whether it contains metal or not" (101),
    o Warning the user by means of an warning device (103) due to the risk of arcing (103), if the object loaded into the washer/dryer (1) was detected to contain metal during the above step "Controlling the object loaded into the washer/dryer (1) whether it contains metal or not" (101),
    o Controlling the select button (10) whether it is used or not (104),
    o Stopping the machine and returned to the beginning step (200), when the select button (10) is controlled (104),
    o Awaiting until the select button (10) is used for the period determined by the producer of the washer/dryer (105), if the select button (104) is not used, when the select button (10) is controlled (104),
    o Controlling the cover (11) whether it is closed or not (102),
    o Restarting the method and the procedures again (200), if the cover (11) is not closed,
    o Operating (120) microwave detector (7), if it is closed, when the cover (11) is controlled,
    o Operating (120) microwave detector,
    o Transmitting microwave to the tub at a low level (121),
    o Detecting microwave transmitted in the tub (128),
    o Controlling the detected microwave amount whether it is higher than the values determined by the producer of the washer/dryer to harm the user or not (122),
    o Continuing to operate in the way selected by the user (123), if there is no difference in the reflection of the transmitted microwave,
    o Stopping (124) the machine and returning to the beginning step (200),
    o Stopping transmission microwave by the information received in the control card (125), if there is a difference in the reflection of the transmitted microwave in the control step whether the detected microwave amount is higher than the values predetermined by the producer of the washer/dryer (122),
    o Warning the user (126),
    o Detecting whether the metal object is removed or not (127) by metal detector (8),
    o Continuing to operate in the way selected by the user (123), if the metal object is detected to be removed (127),
    o Awaiting for the period determined by the producer of the washer dryer(130), if the metal object is detected not to be removed (127),
    o Warning the user (131),
    o Asking to the user to select to operate with or without microwave (132),
    o Stopping (133) the machine and returning to the beginning step (200), if it is required to operate with microwave,
    o Operating the machine without microwave (134), if it is required to operate without microwave,
    o Stopping the machine (135) and returning to the beginning step following the completion of the procedures (200).
EP03796256.0A 2002-12-27 2003-12-22 A washer/dryer using microwave and its control method Expired - Lifetime EP1581687B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TR200202746 2002-12-27
TR200202746 2002-12-27
PCT/TR2003/000102 WO2004059071A1 (en) 2002-12-27 2003-12-22 A washer/dryer using microwave and its control method

Publications (2)

Publication Number Publication Date
EP1581687A1 EP1581687A1 (en) 2005-10-05
EP1581687B1 true EP1581687B1 (en) 2016-04-27

Family

ID=32679814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03796256.0A Expired - Lifetime EP1581687B1 (en) 2002-12-27 2003-12-22 A washer/dryer using microwave and its control method

Country Status (4)

Country Link
EP (1) EP1581687B1 (en)
AU (1) AU2003298504A1 (en)
TR (1) TR200502310T1 (en)
WO (1) WO2004059071A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5870239B2 (en) * 2012-03-09 2016-02-24 パナソニックＩｐマネジメント株式会社 High frequency heating device
CN108252025B (en) * 2016-12-28 2020-06-05 青岛胶南海尔洗衣机有限公司 Washing machine control method and washing machine
CN112411114A (en) * 2020-11-30 2021-02-26 安徽信息工程学院 Washing machine based on AI face recognition payment technology
KR20220088117A (en) * 2020-12-18 2022-06-27 엘지전자 주식회사 Laundry drying machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252199A (en) * 1987-04-09 1988-10-19 松下電器産業株式会社 Clothing drier
DE3922122A1 (en) * 1989-07-05 1991-01-17 Siemens Ag Laundry drying plant - comprises mechanical press, HF oven and air turbulence zone
US5270509A (en) * 1991-12-24 1993-12-14 Electric Power Research Institute Microwave clothes drying system and method with improved arc detection
US5325600A (en) 1992-04-06 1994-07-05 Micro Dry, Inc. Method and apparatus for the prevention of scorching of fabric subjected to microwave heating
JPH1190398A (en) * 1997-09-25 1999-04-06 Sanyo Electric Co Ltd Organic matter treating device
AU3853900A (en) 2000-02-07 2001-08-14 Arcelik A.S. Arc detection method and apparatus

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Publication number Publication date
WO2004059071A1 (en) 2004-07-15
EP1581687A1 (en) 2005-10-05
AU2003298504A1 (en) 2004-07-22
TR200502310T1 (en) 2005-09-21

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