EP1029962B1 - Verfahren zur Optimierung des Arbeitszyklus einer Spülmaschine und eine dieses Verfahren gebrauchende Spülmaschine - Google Patents

Verfahren zur Optimierung des Arbeitszyklus einer Spülmaschine und eine dieses Verfahren gebrauchende Spülmaschine Download PDF

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Publication number
EP1029962B1
EP1029962B1 EP00400424A EP00400424A EP1029962B1 EP 1029962 B1 EP1029962 B1 EP 1029962B1 EP 00400424 A EP00400424 A EP 00400424A EP 00400424 A EP00400424 A EP 00400424A EP 1029962 B1 EP1029962 B1 EP 1029962B1
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EP
European Patent Office
Prior art keywords
water
cycle
compartment
measuring
remaining
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
EP00400424A
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English (en)
French (fr)
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EP1029962A1 (de
Inventor
Benoít THOMSON-CSF Propriété Intell. Gailledrat
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.)
Brandt Industries SAS
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Brandt Industries SAS
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Publication of EP1029962A1 publication Critical patent/EP1029962A1/de
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4244—Water-level measuring or regulating arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026—Rinsing phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a dishwasher equipped with a washing bath control method of to optimize the rinsing cycle.
  • the invention does not attempt to measure the turbidity of water to wash and even less to rinse next but proposes to measure the residual amount of water at the end of the wash, which exceeds a certain threshold is the unmistakable indicator that the dilution factor (laundry + microdheets) is not enough, to get a product to wash irreproachable. In this case, the rinse is automatically increased by one see several rinses.
  • the subject of the invention is a process optimizing the operating cycle of a dishwasher as described in claim 1.
  • the measurement of the quantity of water remaining at the bottom of the tank is a direct measurement performed by height direct manometer for example by an analog manometer (piezoelectric Or other).
  • the step of measuring the amount of water remaining can be done differentially by volume measurement water at the beginning of the rinsing cycle to reach a volume in the tank bottom, predetermined standard.
  • the measure may relate to the water supply time or be performed using a flowmeter to measure the complementary volume water to bring to reach a standard level.
  • the invention also relates to a dishwasher using the method of the invention.
  • This apparatus includes a filled tank in liquid from a water intake comprising a solenoid valve and means for closing the solenoid valve when the amount of water necessary for the operation of the wash cycle or the rinse cycle is equal to a predetermined amount of water and a cycle timer of washing and rinsing cycle characterized in that it comprises means to measure the quantity of water remaining in the tank after a draining operation at the end of the cycle of washing and means for controlling the programmer to schedule at least one additional rinse in the rinse cycle when said remaining amount of water is greater than a threshold value.
  • any means of precise measurement of level of water which may include a pressure gauge, or a float.
  • the means for closing the solenoid valve may be of the type switch.
  • a dishwasher 1 schematized in Figure 1, comprises a body 2, a tank 3 in which are mounted dish baskets 4, 5, reels 6, 7 and a water level regulating device 10.
  • water level regulating device 10 can be, in known manner, consisting of an air pressure switch whose chamber, delimited by a membrane flexible, is connected to the compression chamber, bell, disposed in the tank of the appliance.
  • the diaphragm of the pressure switch moves under the effect of pressure variations relative to the atmosphere acts on an electrical contactor that gives the level signal reached, to automatism.
  • This level reached is not necessarily chosen necessarily to match a sufficient volume of water at the bottom of the tank to operate the unit in a normal (or nominal) manner.
  • a variant of the invention in this case may be: provided that the detection the water level is fine enough to control a volume of water accurate, compatible with the operating thresholds of the present process, can match the level reached with the volume of water at the bottom of the tank just necessary, and sufficient, to a proper operation of the device.
  • the water level regulating device 10 thus makes it possible to obtain a level well determined, necessary for reasons of safety and economy of water.
  • the dishwasher also has a drain pump to renew the liquid at the bottom of the tank.
  • the bottom part of the tank comprises a recycling pump provided with a pipe of water guidance discharged to the lower sprinkler and a pump drain connected to an evacuation pipe. Filters and microfilters recycle clean water to supply the closed circuit with reels so as to save the volume of water introduced since outside.
  • washing cycles water + laundry
  • Rinsing cycles water only
  • Figure 2 schematizes the main steps of an example of process according to the invention.
  • the first step concerns a standard wash cycle C I.
  • the second step corresponds to a draining operation V of the tank.
  • the third step corresponds to the first phase of the rinsing cycle C R , ie to the first filling operation of the tank with clean rinsing water R 1 .
  • this operation it is measured in parallel the amount of water needed Q n to reach the standard amount of water Q R to bring into the tank to reach a standard level N R predetermined.
  • the rinsing cycle is followed by a drying cycle C s after a new drain V.
  • the rinsing cycle is a standard cycle.
  • the standard rinsing cycle can be limited to either a single rinse R 1 as illustrated in Figure 2, or two rinsing phases R 1 and R 2 . In the latter case, the rinse R 2 will be a hot bath.
  • a second additional rinse R i2 can be programmed.
  • the dishwasher is equipped with a sensor so as to precisely measure the volume of water to be added to the first rinsing bath after draining the last washing bath.
  • the volumes of water corresponding to the preset level N R can for a dishwasher range from 1 to 6 liters
  • the threshold Q S1 can be set to an order of magnitude of 0.5 liter and the cumulative accuracy of two means of measurement must be better than half the value of the threshold, ie for example ⁇ 0.15 liter for each.
  • the information provided by the sensor directly informs the programmer who then automatically selects the optimal number of rinses.
  • the sensor can be a small flow meter placed on the line water supply to the home appliance.
  • Measuring the volume of water to be added during the first rinse to complete the amount of water up to the standard level of the first rinse bath can be performed also through a counter that informs about the water supply time, done at regulated flow on arrival of water. If this time is less than a critical threshold, predefined, the automation of the machine triggers in the course of the cycle at least one rinse additional.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (8)

  1. Verfahren zur Optimierung des Arbeitszyklus eines Geschirrsspülers, mit eine Wanne (3), die mit Flüssigkeit aus einem Wasseranschluss gefüllt wird, wobei das Verfahren einen Waschzyklus (C1), gefolgt von einem Spülzyklus (CR) aufweist, dadurch gekennzeichnet, dass es folgende Schritte enthält:
    Messen der verbleibenden Wassermenge (Qi) in der Wanne nach einem Entleerungsvorgang (V) am Ende des Waschzyklus (C1); und
    Programmieren von mindestens einem zusätzlichen Spülvorgang (Ri1, Ri2) innerhalb des Spülzyklus (CR), wenn die verbleibende Wassermenge (Qi) einen Schwellenwert (QS1) überschreitet.
  2. Verfahren zur Optimierung des Arbeitszyklus eines Geschirrsspülers nach Anspruch 1, dadurch gekennzeichnet, dass der Schritt des Messens der verbleibenden Wassermenge (Qi) differentiell durch Messen des Wasservolumens (QN) durchgeführt wird, das am Anfang des Spülzyklus (CR) aufzubringen ist, um am Boden der Wanne ein vorgegebenes Standardvolumen (QR) zu erreichen.
  3. Verfahren zur Optimierung des Arbeitszyklus eines Geschirrsspülers nach Anspruch 2, dadurch gekennzeichnet, dass der Schritt des differentiellen Messens mit Hilfe eines Druckreglers (10) durchgeführt wird, der eine manometrische Füllhöhe des Wassers misst.
  4. Geschirrspüler (1) mit einer Wanne (3), die mit Flüssigkeit aus einem Wasseranschluss gefüllt wird, der ein Elektroventil sowie Mittel zum Schließen des Elektroventils aufweist, wenn die Wassermenge, die für den Betrieb des Waschzyklus (C1) oder Spülzyklus (CR) erforderlich ist, einer vorgegebenen Wassermenge gleich ist, und ein Programmsteuergerät für den Waschzyklus und den Spülzyklus aufweist, dadurch gekennzeichnet, dass er Mittel zum Messen der verbleibenden Wassermenge (Qi) in der Wanne nach einem Entleerungsvorgang (V) am Ende des Waschzyklus (C1) und Mittel zum Steuern des Programmsteuergeräts aufweist, so dass mindestens ein zusätzlicher Spülvorgang (Ri1, Ri2) innerhalb des Spülzyklus (CR) programmiert wird, wenn die verbleibende Wassermenge (Qi) einen Schwellenwert (QS1) überschreitet.
  5. Geschirrspüler nach Anspruch 4, dadurch gekennzeichnet, dass die Mittel zum Schließen des Elektroventils einen Druckregler (10) aufweisen.
  6. Geschirrspüler nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Mittel zum Messen der verbleibenden Wassermenge (Qi) in der Wanne nach einem Entleerungsvorgang (V) am Ende des Waschzyklus Mittel vom Typ eines analogen Manometer aufweisen.
  7. Geschirrspüler nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Mittel zum Messen der verbleibenden Wassermenge (Qi) in der Wanne nach einem Entleerungsvorgang (V) am Ende des Waschzyklus Mittel zum Messen der Zeit zur Speisung der Wanne mit Wasser bei der ersten Füllung des Spülzyklus aufweisen.
  8. Geschirrspüler nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Mittel zum Messen der verbleibenden Wassermenge (Qi) in der Wanne nach einem Entleerungsvorgang (V) am Ende des Waschzyklus einen Durchflußsensor aufweisen, um das Wasservolumen (QN) zu messen, das zusätzlich zuzuleiten ist, um das Volumen am Boden der Wanne bis auf ein vorgegebenes Niveau (NR) bei der ersten Füllung des Spülzyklus aufzufüllen.
EP00400424A 1999-02-16 2000-02-15 Verfahren zur Optimierung des Arbeitszyklus einer Spülmaschine und eine dieses Verfahren gebrauchende Spülmaschine Expired - Lifetime EP1029962B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9901860A FR2789568B1 (fr) 1999-02-16 1999-02-16 Procede d'optimisation du cycle de fonctionnement d'un appareil electromenager lavant et appareil utilisant ce procede
FR9901860 1999-02-16

Publications (2)

Publication Number Publication Date
EP1029962A1 EP1029962A1 (de) 2000-08-23
EP1029962B1 true EP1029962B1 (de) 2005-08-17

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Application Number Title Priority Date Filing Date
EP00400424A Expired - Lifetime EP1029962B1 (de) 1999-02-16 2000-02-15 Verfahren zur Optimierung des Arbeitszyklus einer Spülmaschine und eine dieses Verfahren gebrauchende Spülmaschine

Country Status (4)

Country Link
EP (1) EP1029962B1 (de)
DE (1) DE60021930T2 (de)
ES (1) ES2245926T3 (de)
FR (1) FR2789568B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045151C2 (de) * 2000-09-13 2002-09-26 Whirlpool Co Verfahren zur Zufuhr von Klarspülmittel bei einer Geschirrspülmaschine
DE10253025B3 (de) * 2002-11-14 2004-07-22 Whirlpool Corp., Benton Harbor Verfahren zum Betreiben einer Geschirrspülmaschine mit zentraler Steuereinheit und Trübungsmessung
DE10253017B4 (de) * 2002-11-14 2004-09-09 Whirlpool Corp., Benton Harbor Verfahren zum Betreiben einer Geschirrspülmaschine mit einer zentralen Steuereinheit
DE10259736A1 (de) * 2002-12-19 2004-07-08 BSH Bosch und Siemens Hausgeräte GmbH Spülverfahren für eine Geschirrspülmaschine sowie Geschirrspülmaschine
CN114145686B (zh) * 2021-11-22 2023-09-12 珠海格力电器股份有限公司 洗涤控制方法、装置及洗碗机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777683A (en) * 1987-12-07 1988-10-18 Pellerin Milnor Corporation Treatment of cloth or other liquid absorbent goods
DE4141213C2 (de) * 1991-12-13 1996-12-12 Bosch Siemens Hausgeraete Verfahren zum Bestimmen der Wäsche-Trockenmasse, des Wasserstands und der gebundenen Flotte in einer Trommelwaschmaschine sowie Waschmaschine zur Durchführung des Verfahrens
EP0686721B1 (de) * 1994-06-09 2000-05-10 Whirlpool Europe B.V. Verfahren zum Optimieren der Wasserausnutzung in Waschmaschinen
KR0176863B1 (ko) * 1995-11-18 1999-05-15 구자홍 중량센서를 이용한 세탁기의 수위 감지방법
DE19641477B4 (de) * 1996-10-09 2005-10-20 Aeg Hausgeraete Gmbh Verfahren zur Steuerung des Spülvorgangs einer Waschmaschine
US5768729A (en) * 1996-12-19 1998-06-23 Maytag Corporation Adaptive fill control for an automatic washer

Also Published As

Publication number Publication date
EP1029962A1 (de) 2000-08-23
DE60021930T2 (de) 2006-06-08
FR2789568B1 (fr) 2001-05-04
ES2245926T3 (es) 2006-02-01
FR2789568A1 (fr) 2000-08-18
DE60021930D1 (de) 2005-09-22

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