EP2123819A1 - Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür - Google Patents

Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür Download PDF

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Publication number
EP2123819A1
EP2123819A1 EP08156770A EP08156770A EP2123819A1 EP 2123819 A1 EP2123819 A1 EP 2123819A1 EP 08156770 A EP08156770 A EP 08156770A EP 08156770 A EP08156770 A EP 08156770A EP 2123819 A1 EP2123819 A1 EP 2123819A1
Authority
EP
European Patent Office
Prior art keywords
electric
household appliance
electric household
access door
electronic control
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Withdrawn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
EP08156770A
Other languages
English (en)
French (fr)
Inventor
Ivan Monticco
Mirko Cenedese
Roberto Bottos
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP08156770A priority Critical patent/EP2123819A1/de
Priority to PL09006501T priority patent/PL2123820T3/pl
Priority to ES09006501T priority patent/ES2372659T3/es
Priority to AT09006501T priority patent/ATE521748T1/de
Priority to EP09006501A priority patent/EP2123820B1/de
Priority to RU2009119294/12A priority patent/RU2497989C2/ru
Publication of EP2123819A1 publication Critical patent/EP2123819A1/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • D06F2103/40—Opening or locking status of doors
    • 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
    • D06F34/08—Control circuits or arrangements thereof

Definitions

  • the present invention relates to an electronic control device for an electric household appliance with an access door.
  • the present invention relates to an electronic control device for use in an electric household appliance, such as a washing machine and/or drier or any similar household appliance, to disable operation of the appliance in the event electric power supply to the appliance is cut off; to which application the following description refers purely by way of example.
  • an electric household appliance such as a washing machine and/or drier or any similar household appliance
  • electric household appliances particularly washing machines or driers, normally comprise a casing; a laundry drum housed inside the casing and communicating with the outside through a drum access opening formed in the casing; and an access door closing the opening.
  • opening the access door opens a safety switch in the main power supply circuit of the appliance, which cuts off power supply to stop the appliance; and, when the access door is closed, the main power supply circuit safety switch closes to power and so restart the appliance.
  • Appliances of the above type have the major drawback of restarting automatically when the access door is in the closed position closing the safety switch.
  • the main power supply circuit safety switch fails to provide for all-round safety. That is, during a power cut, the access door may be opened, thus allowing a child to climb into the laundry drum. In which case, accidental closure of the door closes the safety switch, thus enabling the appliance to restart automatically when power is restored, with obvious disastrous consequences to the child inside the drum.
  • Number 1 in Figure 1 indicates as a whole an electric household appliance substantially comprising a casing 2; a laundry drum 3 mounted inside casing 2 to hold a given amount of laundry, and directly facing a laundry loading/unloading opening 4 formed in casing 2; and an access door 5 fitted to casing 2 to move, e.g. rotate, between an open position and a closed position opening and closing opening 4 respectively.
  • Electric household appliance 1 may be a drier or washing machine or any similar appliance, and comprises an electronic control device 6 for determining a hazard condition - corresponding to door 5 being opened when electric power supply to the appliance is cut off, i.e. during a power cut - or a safety condition - corresponding to door 5 not being opened during the power cut.
  • Electronic control device 6 is also designed to selectively disable or enable operation of appliance 1 upon detecting the hazard or safety condition respectively.
  • the appliance comprises various internal electric equipment 7, such as an electric motor, pumps, and various known electric devices; and a main power circuit 8 connecting internal electric equipment 7 to a main power source 9 comprising, for example, an electric line at a predetermined supply potential V1 of preferably, though not necessarily, about 230 V.
  • V1 a predetermined supply potential
  • Main power circuit 8 comprises a power branch 10 connecting the external electric power source to electric equipment 7; an electronic switch 11 located along power branch 10, and which switches to off or on to respectively disconnect or connect appliance 1 to power source 9; and an electromechanical switch 14 located along power branch 10 and connected to door 5 to open and close when door 5 is moved into the open and closed position respectively.
  • electronic switch 11 may preferably, though not necessarily, comprise a TRIAC which receives a control signal SCOM and, depending on control signal SCOM, switches to on or off to respectively enable or cut off electric power supply to electric equipment 7.
  • TRIAC which receives a control signal SCOM and, depending on control signal SCOM, switches to on or off to respectively enable or cut off electric power supply to electric equipment 7.
  • Control device 6 comprises a detecting module 12 for detecting the hazard or safety condition; and a control module 13 for selectively disabling or enabling electronic switch 11 on detecting the hazard or safety condition respectively.
  • Detecting module 12 also comprises a mechanism 18, which cooperates with door 5 to move electric contact 16 mechanically from the work position to the rest position when door 5 is moved from the closed to the open position. More specifically, mechanism 18 is designed not to move electric contact 16 in any way when door 5 moves from the open to the closed position.
  • Detecting module 12 also comprises an electromagnetic device 19 which, when excited, generates a magnetic field to move electric contact 16 from the rest position, i.e. opening, to the work position, i.e. closing electric detecting branch 15.
  • electromagnetic device 19 may comprise a coil which receives an excitation signal SE to generate a magnetic field to move electric contact 16 from the rest to the work position.
  • Control module 13 comprises a microprocessor having a first input connected to the second terminal of electric detecting branch 15 to receive status signal ST; a second input receiving a priority enabling signal SA; a first output supplying control signal SCOM to electronic switch 11; and a second output supplying excitation signal SE to electromagnetic device 19.
  • control module 13 when signal ST indicates the hazard condition, control module 13 generates control signal SCOM which disables electronic switch 11; and, when signal ST indicates the safety condition, control module 13 generates control signal SCOM to enable electronic switch 11.
  • Priority enabling signal SA may be generated by a control interface 21 on casing 2, to allow user consent to start appliance 1 after a power cut.
  • control interface 21 comprises a button which is pressed by the user to supply priority enabling signal SA to the control module.
  • control module 13 receiving status signal ST indicating the safety condition, therefore generates control signal SCOM to enable the TRIAC and so allow the appliance to continue the wash cycle interrupted by the power cut.
  • mechanism 18 moves electric contact 16 from the work position to the rest position.
  • electromagnetic device 19 receiving no excitation signal from the control module, generates no magnetic field, so electric contact 16 remains in the rest position. Closure of door 5 produces no movement of electric contact 16, which therefore remains in the rest position, thus generating a status signal ST indicating the hazard condition.
  • control module 13 When power is restored, control module 13 acquires the hazard condition indicated in status signal ST, and generates control signal SCOM to keep electronic switch 11 disabled and so cut off power supply to electric equipment 7. In which case, control module 13 keeps the TRIAC and, hence, appliance 1 disabled, and remains on standby awaiting priority enabling signal SA from the user. The standby condition terminates when the user presses the button to generate priority enabling signal SA. More specifically, on receiving priority enabling signal SA, control module 13 enables the TRIAC to allow appliance 1 to start operating again, and at the same time supplies excitation signal SE to electromagnetic device 19 which moves electric contact 16 into the work position.
  • Electronic control device 6 described above has the advantage of eliminating the hazard posed by the appliance starting up automatically after a power cut during which the appliance door has been opened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Safety Devices In Control Systems (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Electric Ovens (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP08156770A 2008-05-22 2008-05-22 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür Withdrawn EP2123819A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP08156770A EP2123819A1 (de) 2008-05-22 2008-05-22 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür
PL09006501T PL2123820T3 (pl) 2008-05-22 2009-05-14 Elektroniczny układ zabezpieczający do elektrycznego urządzenia gospodarstwa domowego z drzwiczkami dostępowymi
ES09006501T ES2372659T3 (es) 2008-05-22 2009-05-14 Sistema electrónico de seguridad para un electrodoméstico con una puerta de acceso.
AT09006501T ATE521748T1 (de) 2008-05-22 2009-05-14 Elektronische steuervorrichtung für ein elektrisches haushaltsgerät mit zugangstür
EP09006501A EP2123820B1 (de) 2008-05-22 2009-05-14 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür
RU2009119294/12A RU2497989C2 (ru) 2008-05-22 2009-05-21 Электронная предохранительная система для электрического бытового прибора с дверцей

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08156770A EP2123819A1 (de) 2008-05-22 2008-05-22 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür

Publications (1)

Publication Number Publication Date
EP2123819A1 true EP2123819A1 (de) 2009-11-25

Family

ID=39769527

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08156770A Withdrawn EP2123819A1 (de) 2008-05-22 2008-05-22 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür
EP09006501A Active EP2123820B1 (de) 2008-05-22 2009-05-14 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09006501A Active EP2123820B1 (de) 2008-05-22 2009-05-14 Elektronische Steuervorrichtung für ein elektrisches Haushaltsgerät mit Zugangstür

Country Status (5)

Country Link
EP (2) EP2123819A1 (de)
AT (1) ATE521748T1 (de)
ES (1) ES2372659T3 (de)
PL (1) PL2123820T3 (de)
RU (1) RU2497989C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000530A1 (en) * 2013-07-05 2015-01-08 Arcelik Anonim Sirketi Laundry treatment appliance having improved door safety
WO2020228941A1 (en) * 2019-05-13 2020-11-19 Electrolux Appliances Aktiebolag Laundry-treating machine and method for controlling such a laundry-treating machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386675B1 (de) 2010-05-14 2014-07-16 Electrolux Home Products Corporation N.V. Heizschaltung mit Überwachungsanordnung für ein Haushaltsgerät

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056891A (en) * 1975-05-23 1977-11-08 Billy R. Rayburn Sequential switching device
US20030197387A1 (en) * 2002-04-23 2003-10-23 Albert Dirnberger Door lock

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5743135A (en) * 1980-08-29 1982-03-11 Matsushita Electric Ind Co Ltd High frequency heating device
US5276284A (en) * 1992-02-28 1994-01-04 Square D Company Power switch disabler
IT1309106B1 (it) * 1999-10-13 2002-01-16 Merloni Elettrodomestici Spa Utenza elettrica domestica a controllo elettronico e relativo sistemadi controllo e programmazione.
EP1340870B1 (de) * 2002-02-27 2009-11-18 emz-Hanauer GmbH & Co. KGaA Einheit mit Memory-Metall-Aktuator für Türverriegelungen von Haushaltsgeräten
EP1619287B1 (de) * 2004-07-13 2007-01-03 C.R.F. Società Consortile per Azioni Maschine zum Waschen und/oder Trocknen von Wäsche, mit einer elektrisch betätigbaren Verriegelungs-/Entriegelungsvorrichtung der Tür
SI21888A (sl) * 2004-10-06 2006-04-30 Itw Metalflex D.O.O. Tolmin Varnostna zapora vrat gospodinjskih aparatov
ITTO20060736A1 (it) * 2006-10-13 2008-04-14 Itw Metalflex Druzba Za Proizvodnjo Delov Za ... Dispositivo di bloccaggio per una porta di un elettrodomestico, in particolare un oblo' di una lavatrice

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056891A (en) * 1975-05-23 1977-11-08 Billy R. Rayburn Sequential switching device
US20030197387A1 (en) * 2002-04-23 2003-10-23 Albert Dirnberger Door lock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015000530A1 (en) * 2013-07-05 2015-01-08 Arcelik Anonim Sirketi Laundry treatment appliance having improved door safety
WO2020228941A1 (en) * 2019-05-13 2020-11-19 Electrolux Appliances Aktiebolag Laundry-treating machine and method for controlling such a laundry-treating machine
CN113811648A (zh) * 2019-05-13 2021-12-17 伊莱克斯家用电器股份公司 衣物处理机以及用于控制这种衣物处理机的方法
CN113811648B (zh) * 2019-05-13 2024-01-02 伊莱克斯家用电器股份公司 衣物处理机以及用于控制这种衣物处理机的方法

Also Published As

Publication number Publication date
RU2497989C2 (ru) 2013-11-10
ATE521748T1 (de) 2011-09-15
PL2123820T3 (pl) 2012-01-31
EP2123820B1 (de) 2011-08-24
EP2123820A1 (de) 2009-11-25
RU2009119294A (ru) 2010-11-27
ES2372659T3 (es) 2012-01-25

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