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WO2008148788A2 - Machine à laver séchante - Google Patents

Machine à laver séchante Download PDF

Info

Publication number
WO2008148788A2
WO2008148788A2 PCT/EP2008/056896 EP2008056896W WO2008148788A2 WO 2008148788 A2 WO2008148788 A2 WO 2008148788A2 EP 2008056896 W EP2008056896 W EP 2008056896W WO 2008148788 A2 WO2008148788 A2 WO 2008148788A2
Authority
WO
WIPO (PCT)
Prior art keywords
triac
voltage
door lock
relay
washer
Prior art date
Application number
PCT/EP2008/056896
Other languages
English (en)
Other versions
WO2008148788A3 (fr
Inventor
Hakan Ozkahraman
Namik Yilmaz
Bulent Efecik
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to AT08760478T priority Critical patent/ATE475739T1/de
Priority to EP08760478A priority patent/EP2162580B1/fr
Priority to DE602008001988T priority patent/DE602008001988D1/de
Publication of WO2008148788A2 publication Critical patent/WO2008148788A2/fr
Publication of WO2008148788A3 publication Critical patent/WO2008148788A3/fr

Links

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

Definitions

  • the present invention relates to a washer/dryer wherein the drum is not rotated when the door is opened.
  • the doors of washer/dryers are automatically locked during the washing process for the safety of the user.
  • the door is allowed to be opened by the user.
  • various types of door safety circuits are used that permit the door lock to be opened or closed and the operation of the circuits are controlled by an electronic control system.
  • a microprocessor is provided in the electronic control system, and the open -closed status of the door and the operation of the motor rotating the drum are controlled by a software in the microprocessor.
  • the aim of the present invention is the realization of a washer/dryer wherein user safety is provided by stopping the rotation of the drum when an error is detected in the circuit energizing the door lock.
  • the washer/dryer comprises a relay that operates, halts or changes the operating direction of the motor that rotates the drum, a door lock that is locked up during washing preventing the opening of the door and allows the door to be opened at the end of the washing process, a triac that energizes the door lock and a micro processor that regulates the functioning of the electric motor and the door lock.
  • the control circuit guarantees that the electric motor is halted.
  • One end of the control circuit is connected to the line between the triac and the door lock, and the other end to the relay of the electric motor and the control circuit measures the voltage on the triac or the door lock by taking the mains voltage as reference.
  • the control circuit decides whether or not the triac is in error depending on the measured voltage and if the triac is decided to be in error, then cuts off the feed current of the relay and halts the electric motor.
  • control circuit detects a low voltage on the triac by detecting the voltage difference between the neutral line (0 Volt) of the mains voltage and the triac outlet, decides that the triac is in transmission and delivers energy to the relay.
  • control circuit detects a voltage close to the mains voltage on the triac, decides that the triac is open circuit, that is in error, and cuts off the energy that feeds the relay.
  • the control circuit detects the voltage difference between the door lock inlet and the door lock outlet in the phase side (220 - 230 V) of the mains voltage, and if a voltage is detected on the door lock, decides that the triac is in transmission and delivers energy to the relay.
  • the control circuit does not detect a voltage on the door lock, decides that a triac error is causing the door lock not to be driven and cuts off the energy that feeds the relay.
  • Figure 1 - is the schematic view of a control circuit in a washer/dryer.
  • the washer/dryer (1) comprises an electric motor (2) that moves the drum wherein the laundry is emplaced, one or more relays (3) that changes to the active - passive mode by being energized with the control signals received and maintains the electric motor (2) to be operated, halted or the operational direction changed, a door for accessing the drum, a door lock (4), for example the electromagnetic type, that prevents the door to be opened by being locked during the washing and allows the door to be opened after the washing process, a triac (5) connected to the main power supply that energizes the door lock (4) by functioning as a switching device and a microprocessor (6) that regulates the operation of the electric motor (2) and the door lock (4) for maintaining user safety, for example before the door is opened by the user after the washing process, gives the command for opening the door lock (4) after the completion of inertial rotation of the electric motor (2).
  • a door lock (4) for example the electromagnetic type
  • the washer/dryer (1) of the present invention comprises a control circuit
  • control circuit (7) decides that the triac (5) is in transmission
  • control circuit (7) detects that the triac (5) is open circuit and not functioning, cuts off the energy feeding the relay (3) maintaining thereof to change to passive mode and halts the electric motor (2) without taking notice of the microprocessor (6) commands.
  • the triac (5) is controlled by the microprocessor (6) under normal work conditions and the control circuit (7) is activated when the triac (5) does not operate as a result of a microprocessor (6) error, providing an additional security.
  • the control circuit (7) comprises a voltage divider (8) that measures and evaluates the voltage on the triac (5) or the door lock (4), a rectifier (9) that converts AC voltage to DC voltage and furthermore transistors are provided in the control circuit (7) that function as switches for delivering energy to the relay (3) or cut off the energy to the relay (3) as a result of evaluating the measured voltage.
  • the control circuit (7) detects the voltage difference between the triac (5) inlet and triac (5) outlet on the side of the mains voltage (L1 ), for example when a low voltage like 1 - 2 V close to the voltage generated by the triac (5) is detected, decides that the triac (5) is in transmission (not in error) and delivers energy to the relay (3) , and if a voltage like the 220 - 230 V close to the mains voltage is detected on the triac (5), then cuts off the energy feeding the relay (3) by deciding that the triac (5) is in error.
  • the transistors are selected such that energy is delivered to the relay (3) when a low voltage that has to be generated at the triac (5) is detected, and to cut off the energy delivered to the relay (3) when a voltage close to mains voltage is measured.
  • the voltage difference between the triac (5) outlet and the neutral line (zero voltage) of the mains voltage is reduced by means of the voltage divider (8) and is converted to DC voltage by means of the rectifier (9).
  • the DC voltage is then delivered to the relay (3) by means of the transistors.
  • control circuit (7) detects the voltage difference between the door lock (4) inlet and door lock
  • the control circuit (7) comprises an opto-isolator (10) that transmits the voltage in suitable values since the reference of the door lock (4) is the phase line (L2) of the mains voltage having 220 - 230 V voltage and the reference of the control circuit (7) is the neutral line (0 Volt) (L1) of the mains voltage.
  • the opto-isolator (10) is in the passive mode.
  • the opto-isolator (10) is in the active mode since mains voltage is measured on the triac (5) and by the voltage it delivers, maintains the transistors to cut off the energy transmitted to the relay (3).
  • the control circuit (7) of the present invention is activated when the microprocessor (6) controlling operation of the door lock (4) and the electric motor (2) is in error thereby maintaining to halt the electric motor (2) when the door of the washer/dryer (1) is opened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Solid Materials (AREA)
  • Centrifugal Separators (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

La présente invention porte sur une machine à laver séchante (1) dans laquelle la sécurité de l'utilisateur est conservée par la garantie que le moteur électrique (2) entraînant en rotation le tambour est arrêté lorsque la porte est ouverte ou qu'une instruction d'ouverture est émise. La machine à laver séchante (1) comprend un microprocesseur (6) qui permet au verrou de porte (4) d'être ouvert seulement après s'être assuré que le moteur électrique (2) est arrêté avant que la porte ne soit ouverte, et un circuit de commande supplémentaire (7) qui coupe l'énergie du relais (3) actionnant le moteur électrique (2) dans le cas où le microprocesseur (6) est dans un état d'erreur.
PCT/EP2008/056896 2007-06-05 2008-06-04 Machine à laver séchante WO2008148788A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT08760478T ATE475739T1 (de) 2007-06-05 2008-06-04 Waschmaschine/trockner
EP08760478A EP2162580B1 (fr) 2007-06-05 2008-06-04 Machine à laver séchante
DE602008001988T DE602008001988D1 (de) 2007-06-05 2008-06-04 Waschmaschine/trockner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2007/03867 2007-06-05
TR200703867 2007-06-05

Publications (2)

Publication Number Publication Date
WO2008148788A2 true WO2008148788A2 (fr) 2008-12-11
WO2008148788A3 WO2008148788A3 (fr) 2009-04-09

Family

ID=39941886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/056896 WO2008148788A2 (fr) 2007-06-05 2008-06-04 Machine à laver séchante

Country Status (5)

Country Link
EP (1) EP2162580B1 (fr)
AT (1) ATE475739T1 (fr)
DE (1) DE602008001988D1 (fr)
ES (1) ES2348274T3 (fr)
WO (1) WO2008148788A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376750A (zh) * 2012-04-23 2013-10-30 海尔集团公司 门开关控制电路及使用其的干衣机
WO2015000530A1 (fr) * 2013-07-05 2015-01-08 Arcelik Anonim Sirketi Appareil de traitement du linge comportant une sécurité de porte améliorée
WO2016013037A1 (fr) * 2014-07-21 2016-01-28 Bitron S.P.A. Système de verrouillage de porte pour appareil électroménager doté dudit système et procédé de fonctionnement associé
CN113741345A (zh) * 2021-08-27 2021-12-03 安徽新诺精工股份有限公司 一种数控铣床安全检测控制系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023086068A2 (fr) * 2021-11-15 2023-05-19 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi Procédé de fonctionnement pour séchoirs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167720A (en) * 1966-12-29 1969-10-22 Holzer Patent Ag An improved safety device for a door lock on washing machines
EP0702103A1 (fr) * 1994-09-13 1996-03-20 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Dispositif de commande d'une machine à laver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167720A (en) * 1966-12-29 1969-10-22 Holzer Patent Ag An improved safety device for a door lock on washing machines
EP0702103A1 (fr) * 1994-09-13 1996-03-20 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Dispositif de commande d'une machine à laver

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376750A (zh) * 2012-04-23 2013-10-30 海尔集团公司 门开关控制电路及使用其的干衣机
CN103376750B (zh) * 2012-04-23 2015-08-26 海尔集团公司 门开关控制电路及使用其的干衣机
WO2015000530A1 (fr) * 2013-07-05 2015-01-08 Arcelik Anonim Sirketi Appareil de traitement du linge comportant une sécurité de porte améliorée
WO2016013037A1 (fr) * 2014-07-21 2016-01-28 Bitron S.P.A. Système de verrouillage de porte pour appareil électroménager doté dudit système et procédé de fonctionnement associé
US11001959B2 (en) 2014-07-21 2021-05-11 Bitron S.P.A. Door-lock system for household appliance provided with such system and operation method thereof
CN113741345A (zh) * 2021-08-27 2021-12-03 安徽新诺精工股份有限公司 一种数控铣床安全检测控制系统

Also Published As

Publication number Publication date
ATE475739T1 (de) 2010-08-15
WO2008148788A3 (fr) 2009-04-09
EP2162580B1 (fr) 2010-07-28
ES2348274T3 (es) 2010-12-02
EP2162580A2 (fr) 2010-03-17
DE602008001988D1 (de) 2010-09-09

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