EP0522302B1 - Dispositif de commande pour machines à laver - Google Patents

Dispositif de commande pour machines à laver Download PDF

Info

Publication number
EP0522302B1
EP0522302B1 EP92109789A EP92109789A EP0522302B1 EP 0522302 B1 EP0522302 B1 EP 0522302B1 EP 92109789 A EP92109789 A EP 92109789A EP 92109789 A EP92109789 A EP 92109789A EP 0522302 B1 EP0522302 B1 EP 0522302B1
Authority
EP
European Patent Office
Prior art keywords
electric
actuator means
relay
washing
windings
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
EP92109789A
Other languages
German (de)
English (en)
Other versions
EP0522302A1 (fr
Inventor
Daniele Bravin
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 Zanussi Elettrodomestici SpA
Original Assignee
Zanussi Elettrodomestici SpA
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 Zanussi Elettrodomestici SpA filed Critical Zanussi Elettrodomestici SpA
Publication of EP0522302A1 publication Critical patent/EP0522302A1/fr
Application granted granted Critical
Publication of EP0522302B1 publication Critical patent/EP0522302B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D06F34/08—Control circuits or arrangements thereof
    • 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 

Definitions

  • the present invention relates to a control arrangement for washing machines, which is very simple in its construction and is capable of selectively switching on and off various functional component parts of said machines, while making use of a reduced number of semiconductor switching means, such as Triacs or the like, for this purpose.
  • Washing machines such as in particular clothes washing machines or combined clothes washing and drying machines equipped with electronic programme control means, are currently provided with a respective semiconductor switching means (Triac or the like) included in the electrical circuit of each power-assisted functional component part of the machine (ie. the electromagnetic water inlet valves for hot and cold water fill, the drum driving motor, etc.), so as to switch on and off each one of said component parts at the right time, or according to an appropriate sequence, when any selected washing cycle is being performed (see by example EP-A-38 671)
  • Triac or the like included in the electrical circuit of each power-assisted functional component part of the machine (ie. the electromagnetic water inlet valves for hot and cold water fill, the drum driving motor, etc.), so as to switch on and off each one of said component parts at the right time, or according to an appropriate sequence, when any selected washing cycle is being performed (see by example EP-A-38 671)
  • the above cited washing machines are usually provided with at least a relay with electrical contacts of the break-before-make type, which are electrically connected with the electric windings of the drum driving motorin such a way as to reverse said direction of rotation of the motor according to traditional principles (for instance, by reversing the flow of the electric current through said motor windings).
  • FIGS. 1-10 are schematics showing the electric wiring diagram of the control arrangement according to the present invention, such as it is installed in a washing machine, particularly a clothes washing machine or a combined clothes washing and drying machine with an electronic programme control means, comprising a wash tub containing a rotating clothes holding drum that is rotatably driven, in both of its directions of alternate rotation, by an electric motor of a traditional type (none of the above cited component parts is shown).
  • FIG. 1 is shows a condition in which the control arrangement according to the invention is set in its rest state and is electrically connected with a series of power-assisted functional component parts of the machine, which in this case include the electric driving motor 5 comprising an electric winding of the stator 6 and an electric winding of the rotor 7, as well as two electromagnetic water inlet valves 8 and 9 that are separated from each other and are provided to ensure cold and hot water supply to the machine, respectively, and an outlet or drain pump 10 for emptying the wash tub of the machine upon completion of the various pre-wash, main wash and rinse phases of the selected washing cycle, said electromagnetic water inlet valves 8 and 9 and said drain pump 10 being connected with the main conductor 11 of the electric power supply circuit of the machine through respective electrical conductors 12, 13 and 14.
  • the electric driving motor 5 comprising an electric winding of the stator 6 and an electric winding of the rotor 7, as well as two electromagnetic water inlet valves 8 and 9 that are separated from each other and are provided to ensure cold and hot water supply to the machine, respectively,
  • the afore cited control arrangement essentially includes two relay-type actuators 15 and 16 that are associated with the electric windings of the stator 6 and the rotor 7, respectively, to cause the electric driving motor 5 to be driven in its two alternate directions of rotation by the reversal of the flow of the electric current through said windings, said relay-type actuators being provided with a respective pair of electric contacts 17a, 17b and 18a, 18b which are movable and concurrently switchable to either of two different operational positions in the way and for the purposes that will be further described hereinafter.
  • the control arrangement according to the present invention further comprises a series of traditional-type semiconductor switching means to energize and de-energize in the due sequence the various functional component parts of the machine, which in this case include two Triacs 19 and 20 or similar devices that are electrically associated with said relay-type actuators 15 and 16 and are so arranged as to be supplied across the main conductors 11 and 21 of the electric power supply circuit of the machine in the way and for the purposes that will be described hereinafter.
  • the moving contact 17a of the relay-type actuator means 15 is switchable to either one of the fixed contacts 22 and 23, which are in turn connected with the respective electromagnetic water inlet valves 8 and 9 through the conductors 12 and 13, whereas the remaining fixed contact portion 24 of said moving contact 17a is connected through an electric conductor 25 with a fixed contact 26 of the other relay-type actuator means 16.
  • the remaining movable contact 17b of said relay-type actuator means 15 is switchable to either one of the fixed contacts 27 and 28, which are in turn connected with the main conductor 11 through a conductor 29 and with a further fixed contact 30 of said relay-type actuator means 16 through a conductor 31, respectively, whereas the remaining fixed contact portion 32 of said movable contact 17b is connected through a conductor 33, which is in series with the winding of the rotor 7 of said electric drive motor 5, with a further fixed contact 34 of said relay-type actuator means 16.
  • the movable contact 18a of said relay-type actuator means 16 is in turn connected with the fixed contact 34 and is switchable to either one of its other fixed contacts 30 and 35, the latter being further connected through a conductor 36 with the afore described conductor 29.
  • the remaining movable contact 18b of said relay-type actuator means 16 is switchable to either one of the fixed contacts 26 and 37, the latter of which being connected with the drain pump 10 through the conductor 14, whereas the remaining fixed contact portion 38 of said movable contact 18b is connected with the main conductor 21 through a conductor 39, wherein the semiconductor switching means 20 is installed.
  • winding of the stator 6 of said electric drive motor 5 is connected in series with the other semiconductor switching means 19 through a conductor 40 which is connected between the conductor 31 and the main conductor 21.
  • the electronic programme sequence control device (not shown) of the machine is switched off, so that it keeps all the afore cited functional component parts of the machine de-energized, while the washing cycle to be performed is not allowed to start or progress.
  • FIG 2 shows a condition reflecting a functional state of the machine in which the movable contacts 17a and 17b of the relay-type actuator means 15 are switched to establish a connection with the fixed contacts 23 and 28, respectively, whereas the movable contacts 18a and 18b of the relay-type actuator means 16 are switched to establish a connection with the fixed contacts 35 and 37, respectively, said electronic programme sequence control device of the machine being active in triggering both said semiconductor switching means 19 and 20.
  • said semiconductor switching means 19 causes then both electric windings of the rotor 7 and the stator 6 of said electric drive motor 5 to be connected in series and energized, so that they are therefore supplied with power by the main conductors 11 and 21 through the conductors 29 and 36, the movable contact 18a, the conductor 33, the movable contact 17b, the conductor 40 and said semiconductor switching means 19, with a resulting flow of the electric current in the direction indicated by the arrow A through said electric circuit, so that the rotor of said electric drive motor 5 is caused to rotate in a given direction.
  • both relay-type actuator means 15 and 16 are switched over to their other operative position, in which the movable contacts 17a and 17b of the relay-type actuator means 15 are switched over to establish a connection with the fixed contacts 22 and 27, respectively, of said relay-type actuator means 15, whereas the movable contacts 18a and 18b of the other relay-type actuator means 16 are switched over to establish a connection with the fixed contacts 30 and 26, respectively, of said relay-type actuator means 16, while the electronic programme sequence control device of the machine is active in keeping both semiconductor switching means 19 and 20 triggered.
  • said semiconductor switching means 19 causes both the electrical rotor and stator windings 7 and 6 of said electric drive motor 5 to be connected in series and energized accordingly, so that they are now supplied with power by the main conductors 11 and 21 through the conductor 29, the movable contact 17b of the relay-type actuator means 15, the conductor 33, the movable contact 18a of the relay-type actuator means 16, the conductor 40 and said semiconductor switching means 19.
  • the electric current starts flowing in the direction shown by the arrow B through this electric circuit, so that the rotor of said electric drive motor is caused to rotate in the opposite direction as compared to the previous one.
  • the semiconductor switching means 20 no longer causes the drain pump 10 to be energized, as it did in the previous case. It on the contrary starts energizing the electromagnetic cold-water inlet valve 8 through the conductor 12, the movable contact 17a of the relay-type actuator means 15, the conductor 25, the movable contact 18b of the relay-type actuator means 16, the conductor 39 and said semiconductor switching means 20, so that cold water is filled from the mains into the washing tub of the machine until the pre-determined filling level of said water in said washing tub is reached.
  • relay-type actuator means 15 is switched over to its other operative condition as opposed to the operative condition illustrated in Figure 3, whereas the relay-type actuator means 16 is kept in the same operative condition as described for the previously illustrated case.
  • both electric rotor and stator windings 7 and 6 of said electric drive motor 5 are de-energized along with the electromagnetic cold-water inlet valve 8 and the drain pump 10, whereas the electromagnetic hot-water inlet valve 9 is on the contrary energized through the conductor 13, the movable contact 17a of the relay-type actuator means 15, the conductor 25, the movable contact 18b of the relay-type actuator means 16, the conductor 39 and the semiconductor switching means 20, said electromagnetic hot-water inlet valve being then kept switched on by the microprocessor control means of the machine until the hot water filled into the washing tub of the machine has reached its pre-determined filling level.
  • each relay-type actuator means 15 and 16 has, apart from a respective movable contact 17b and 18a for energizing and de-energizing the windings of the electric drive motor, also at least a respective electric movable contact 17a and 18b for switching on and off one or more functional component parts of the machine, so that said relay-type actuator means actually perform a twofold function in controlling at the same time the switching state of both the windings of the electric drive motor of the machine, as it is currently the case, and one or more functional component parts of the same machine through a corresponding semiconductor switching means 20.
  • control arrangement enables the number of control means (which are constituted by the semiconductor switching means 19 and 20) used to switch on and off the various functional component parts of the afore considered machines to be appreciably reduced owing substantially to the fact that a reduced number of such control means are used in combination with the electrical break-before-make contacts of the relay-type actuator means that are normally provided to control the energization and de-energization of the drive motor of the machines, thereby doing away with the need of using a special control means in connection with each one of the functional component parts to be switched on and off, as it is usually done in current machines, and providing an electrical circuit which is both simpler and less expensive in its construction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Control Of Multiple Motors (AREA)

Claims (2)

  1. Dispositif de commande pour machines à laver, en particulier pour les machines à laver le linge ou les machines combinées à laver et à sécher le linge, comprenant au moins un dispositif électronique de commande de séquence de programme pour commander les différents programmes de lavage qui peuvent être sélectionnés, un moteur électrique (5) pour entraîner en rotation le tambour contenant le linge dans l'un ou l'autre de ses sens de rotation, au moins un premier et un second moyens électromécaniques (15, 16) de mise en action, tels que des relais ou analogues, respectivement associés aux enroulements électriques du stator (6) et du rotor (7) dudit moteur électrique d'entraînement et munis d'au moins un contact électrique mobile respectif (17b, 18a) conçu pour relier électriquement lesdits enroulements l'un à l'autre par l'intermédiaire d'au moins un moyen de commutation à semi-conducteur (19, 20), tel qu'un Triac ou dispositif de commutation similaire de type classique, comprenant également une pluralité d'éléments constitutifs fonctionnels électriques, tels que des Vannes électromagnétiques d'admission d'eau (8, 9) pour le remplissage chaud et froid, qu'une pompe de vidange (10), etc., agencés pour être mis en et hors fonction sous la commande dudit dispositif électronique de commande de séquence de programme lorsque n'importe lequel des programmes de lavage sélectionné est en train d'être exécuté, caractérisé en ce que lesdits premier et second moyens électromécaniques (15, 16) de mise en action sont munis d'au moins un contact électrique mobile respectif supplémentaire (17a, 18b) qui est électriquement séparé du contact électrique mobile respectif correspondant (17b, 18a) et qui est manoeuvrable en même temps que celui-ci, lesdits contacts électriques mobiles supplémentaires (17a, 18b) étant conçus pour exciter, de manière sélective, chacun desdits éléments constitutifs fonctionnels (8, 9, 10) de la machine, séparément desdits enroulements électriques du stator (6) et du rotor (7) par l'intermédiaire d'au moins un moyen de commutation à semi-conducteur supplémentaire (20) ou dispositif de commutation similaire.
  2. Dispositif de commande selon la revendication 1, caractérisé en ce que ledit contact mobile supplémentaire (17a) dudit premier moyen électromagnétique (15) de mise en action est commutable, de manière sélective, pour relier électriquement l'une ou l'autre desdites vannes électromagnétiques d'admission d'eau (8, 9) pour le remplissage d'eau froide ou d'eau chaude, et en ce que ledit contact mobile supplémentaire (18b) dudit second moyen électromécanique (16) de mise en action peut être relié, de manière sélective, à l'un ou l'autre dudit contact mobile supplémentaire (17a) ou à ladite pompe de vidange (10).
EP92109789A 1991-06-26 1992-06-11 Dispositif de commande pour machines à laver Expired - Lifetime EP0522302B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN910037 1991-06-26
ITPN910037A IT1250395B (it) 1991-06-26 1991-06-26 Dispositivo di controllo per macchine lavatrici

Publications (2)

Publication Number Publication Date
EP0522302A1 EP0522302A1 (fr) 1993-01-13
EP0522302B1 true EP0522302B1 (fr) 1994-12-14

Family

ID=11394546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109789A Expired - Lifetime EP0522302B1 (fr) 1991-06-26 1992-06-11 Dispositif de commande pour machines à laver

Country Status (4)

Country Link
EP (1) EP0522302B1 (fr)
DE (1) DE69200902T2 (fr)
ES (1) ES2068645T3 (fr)
IT (1) IT1250395B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1267583B1 (it) * 1994-09-13 1997-02-07 Zanussi Elettrodomestici Macchina lavabiancheria con dispositivi perfezionati di comando e controllo
CA2190307A1 (fr) * 1995-11-21 1997-05-22 Alan G. Outcalt Lave-vaisselle et la commande correspondante
DE102005058899A1 (de) 2005-12-09 2007-06-14 BSH Bosch und Siemens Hausgeräte GmbH Schaltungsanordnung zum Verriegeln und/oder Entriegeln eines Türschlosses, insbesondere in einem elektrischen Hausgerät
CN106133229A (zh) * 2013-11-29 2016-11-16 阿塞里克股份有限公司 家用电器排水泵及其控制电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1204181B (de) * 1960-04-08 1965-11-04 Constructa Werke Ges Mit Besch Steuervorrichtung fuer eine automatische Stroemungs-Waschmaschine
DE1588274A1 (de) * 1967-01-31 1970-05-14 Walter Holzer Anordnung zur programmabhaengigen Steuerung,insbesondere einer vollautomatischen Waschmaschine
DE1815705B2 (de) * 1968-12-13 1975-09-25 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Wasch- oder Geschirrspuelmaschine mit einem Programmsteuergeraet
GB2074612B (en) * 1980-04-16 1985-11-20 Servis Domestic Appliances Ltd Washing textile articles

Also Published As

Publication number Publication date
ITPN910037A1 (it) 1992-12-27
EP0522302A1 (fr) 1993-01-13
ITPN910037A0 (it) 1991-06-26
DE69200902T2 (de) 1995-04-13
IT1250395B (it) 1995-04-07
ES2068645T3 (es) 1995-04-16
DE69200902D1 (de) 1995-01-26

Similar Documents

Publication Publication Date Title
US4528485A (en) Electronically commutated motor, method of operating such, control circuit, laundry machine and drive therefor
US5146146A (en) Method and device for operating electric drives
US5253494A (en) Arrangement for controlling detergent addition in washing machines
US2579598A (en) Control for automatic washing machines
EP0522302B1 (fr) Dispositif de commande pour machines à laver
US5211037A (en) Controller for washing machine with alternately reversing drive motor
EP0702103B1 (fr) Dispositif de commande d'une machine à laver
US3872694A (en) Washing machine
US7047770B2 (en) Washing machine agitation action control
US3140595A (en) Control circuit for clothes washing machine
US3049654A (en) Electric motor driven domestic appliance
US3295038A (en) Reversing mechanism and circuit for reversing an electric motor and controlling its functions
US3134385A (en) Article washing and drying machine having reversing single-phase induction motor
US2955448A (en) Clothes washer with an improved water level control system
US3552156A (en) Washing and spin-drying machine
US3005328A (en) Automatic washing machines
US3286149A (en) Control means for electric motor start winding
US4286443A (en) Assured slow speed spin for fabric washing machine
EP0654720A1 (fr) Programmateur pour machine à laver comprenant un microprocesseur qui détecte l'état de contacts électro-mécaniques
US2987066A (en) Electric control arrangement for appliances
US3138724A (en) Washing machine timer
US3320778A (en) Washing machine having multiple elective cycles
US3934433A (en) Switching control for a reversing motor of a washing machine
US3530306A (en) Dishwasher control circuit
EP0080268B1 (fr) Séchoir à tambour

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19930514

17Q First examination report despatched

Effective date: 19940525

ITF It: translation for a ep patent filed

Owner name: PROPRIA PROT. PROPRIETA' IND.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 69200902

Country of ref document: DE

Date of ref document: 19950126

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: ELECTROLUX ZANUSSI ELETTRODOMESTICI, S.P.A.

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020513

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020520

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020523

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020610

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040227

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050611