EP0553645B1 - Steuerungsvorrichtung zum Schleudern in Waschmaschinen - Google Patents

Steuerungsvorrichtung zum Schleudern in Waschmaschinen Download PDF

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Publication number
EP0553645B1
EP0553645B1 EP93100428A EP93100428A EP0553645B1 EP 0553645 B1 EP0553645 B1 EP 0553645B1 EP 93100428 A EP93100428 A EP 93100428A EP 93100428 A EP93100428 A EP 93100428A EP 0553645 B1 EP0553645 B1 EP 0553645B1
Authority
EP
European Patent Office
Prior art keywords
clothes
electronic
tub
drain pump
microcontroller
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
EP93100428A
Other languages
English (en)
French (fr)
Other versions
EP0553645A1 (de
Inventor
Giuseppe Frucco
Silvano Cimetta
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 EP0553645A1 publication Critical patent/EP0553645A1/de
Application granted granted Critical
Publication of EP0553645B1 publication Critical patent/EP0553645B1/de
Anticipated expiration legal-status Critical
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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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • 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 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/06—Timing arrangements

Definitions

  • said electronic comparator means 5 is connected through its output 8 with the microcontroller means 1, whereas two different levels of signal can occur at said output 8 of the comparator means 5, such as for instance a zero level and a pre-set level in accordance with the comparison of the time applied to the input 6 with the time applied to the input 7 of said comparator means.
  • said microcontroller means causes said drain pump 3 to be switched off after a pre-determined period of time, which is considered to be adequate to allow the largest possible amount of the water contained in the tub to be pumped outside.
  • the signal occurring at the output 8 of said comparator means emphasizes another pre-determined level causing the microcontroller means 1 to generate the electrical signal 12 that is arranged to keep the drain pump 3 in its de-energized condition, ie.
  • said electronic counter means 4 and said electronic comparator means 5 can be directly included in the structure of said microcontroller means 1.
  • the control arrangement for the spin-extraction phase of the washing process of a clothes washing machine does in this way enable the duration of the final spin-extraction phase to be each time adapted automatically to both the actual characteristics of the different types of clothes and the actual amount of clothes in the washload, and therefore to the actual water adsorbing capacity of the same washload, while ensuring effective water extraction from the clothes and optimizing the way in which the whole washing process is ultimately performed.

Claims (4)

  1. Steuerungsvorrichtung zum Schleudern in Waschmaschinen für Wäsche, insbesondere Waschmaschinen oder kombinierte Waschmaschinen mit Wäschetrockner, welche umfaßt: einen Waschbehälter mit einer die Wäsche aufnehmenden Rotationstrommel, welche durch eine an sich bekannte Motorantriebseinrichtung drehbar angetrieben werden kann, eine elektronische Mikrosteuerungs-Vorrichtung zum Einstellen und Steuern des Fortgangs jedes vom Benutzer gewählten Waschprogramms, mindestens einen Druckschalter oder eine ähnliche Füllstands-Steuerungsvorrichtung zum Erfassen eines vorbestimmten Füllstands der Lauge im Waschbehälter sowie eine Wasserablaßpumpe, die zur Abgabe der der Wäsche entzogenen und sich während der abschließenden Schleuderphase im Behälter ansammelnden Lauge mit dem Behälter verbunden ist, gekennzeichnet durch eine Zähleinrichtung (4) und einen Vergleicher (5), die zusammen mit dem Druckschalter (2) und der Wasserablaßpumpe (3) funktionell an die Mikrosteuerungs-Vorrichtung 1 angeschlossen sind, wobei die Zähleinrichtung (4), gesteuert von dem Druckschalter (2), die Zeitspannen zwischen dem Moment, in dem die Wasserablaßpumpe (3) durch die Mikrosteuerungs-Vorrichtung (1) von der Stromquelle getrennt wird, und dem Moment mißt, in welchem der vorbestimmte Füllstand der Lauge in dem Behälter erreicht wird, und wobei der Vergleicher (5) die mittels der Zähleinrichtung (4) gezählte Zeit mit der vorbestimmten Bezugszeit (Trif) vergleicht, welche dem Zustand entspricht, in dem die Wäsche in der Trommel nach dem angemessenen Schleudern keine nennenswerte Menge an Restwasser mehr enthält, und wobei der Vergleicher weiterhin die Wasserablaßpumpe (3) entweder wieder anschaltet oder in einem stromlosen Zustand beläßt, während die Stromversorgung für den Motorantrieb unterbrochen und dadurch die Schleuderphase beendet wird, gesteuert von der Mikrosteuerungs-Vorrichtung (1), wenn die durch die Zähleinrichtung (4) gezählte Zeit kürzer, identisch bzw. länger als die jeweilige vorbestimmte Bezugszeit (Trif) ist.
  2. Steuerungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Zähleinrichtung einen elektronischen Zähler (4) umfaßt, der über die Mikrosteuerungs-Vorrichtung (1) mit dem Vergleicher (5), dem Druckschalter (2) und der Wasserablaßpumpe (3) verbunden ist, wobei der elektronische Zähler (4) von der Mikrosteuerungs-Vorrichtung (1) ein Aktivierungssignal (10) und ein Entaktivierungssignal (9) für den Start bzw. den Stopp der Zeitzählfunktion empfangen kann, wenn die Mikrosteuerungs-Vorrichtung (1) die Wasserablaßpumpe (3) abschaltet bzw. der Druckschalter (2) das Erreichen des vorbestimmten Füllstands durch die Lauge im Behälter feststellt.
  3. Steuerungsvorrichtung nach Anspruch 2, gekennzeichnet dadurch, daß die Vergleichsvorrichtung einen elektronischen Vergleicher (5) umfaßt mit: einem ersten und einem zweiten Eingang (6, 7), welche mit dem zeitzählenden elektronischen Zähler (4) bzw. der Mikrosteuerungs-Vorrichtung (1) verbunden sind, wobei die Mikrosteuerungs-Vorrichtung die Bezugszeit- (Trif)-lnformation bereitstellt, sowie mit einem Ausgang (8), der an die Mikrosteuerungs-Vorrichtung (1) angeschlossen ist und zwei unterschiedliche Signalpegel aufweist, um entsprechend dem Ergebnis des Vergleichs der von dem elektronischen Zähler (4) gezählten Zeit mit der vorbestimmten Bezugszeit (Trif), wie an den ersten bzw. den zweiten Eingang (6, 7) angelegt, entweder die Wasserablaßpumpe (3) zu betätigen bzw. sie ausgeschaltet zu lassen.
  4. Steuerungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der elektronische Zähler (4) und der elektronische Vergleicher (5) in die Mikrosteuerungs-Vorrichtung (1) integriert werden können.
EP93100428A 1992-01-28 1993-01-14 Steuerungsvorrichtung zum Schleudern in Waschmaschinen Expired - Lifetime EP0553645B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN920006A IT1259201B (it) 1992-01-28 1992-01-28 Dispositivo di controllo della fase di centrifugazione per macchina lavatrice di biancheria
ITPN920006 1992-01-28

Publications (2)

Publication Number Publication Date
EP0553645A1 EP0553645A1 (de) 1993-08-04
EP0553645B1 true EP0553645B1 (de) 1996-01-10

Family

ID=11394615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100428A Expired - Lifetime EP0553645B1 (de) 1992-01-28 1993-01-14 Steuerungsvorrichtung zum Schleudern in Waschmaschinen

Country Status (4)

Country Link
EP (1) EP0553645B1 (de)
DE (1) DE69301247T2 (de)
ES (1) ES2085057T3 (de)
IT (1) IT1259201B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1267594B1 (it) * 1994-11-08 1997-02-07 Zanussi Elettrodomestici Lavabiancheria con fase di centrifuga perfezionata
US6609264B2 (en) 2001-09-21 2003-08-26 Maytag Corporation Pump cycling control system for a washing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1138600B (it) * 1981-09-14 1986-09-17 Eurodomestici Ind Riunite Perfezionamenti relativi alle macchine lavabiancheria
US4662193A (en) * 1984-05-18 1987-05-05 Sanyo Electric Co., Ltd. Washing machine
DE3445877A1 (de) * 1984-12-15 1986-06-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Programmsteuervorrichtung fuer eine waschmaschine
DE4012115A1 (de) * 1990-04-14 1991-10-17 Licentia Gmbh Verfahren zum schleudern von waesche in einer programmgesteuerten haushaltsmaschine

Also Published As

Publication number Publication date
ITPN920006A0 (it) 1992-01-28
DE69301247T2 (de) 1996-08-22
ES2085057T3 (es) 1996-05-16
EP0553645A1 (de) 1993-08-04
ITPN920006A1 (it) 1993-07-28
IT1259201B (it) 1996-03-11
DE69301247D1 (de) 1996-02-22

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