EP1029962B1 - Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle et lave-vaisselle utilisant ce procédé - Google Patents
Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle et lave-vaisselle utilisant ce procédé Download PDFInfo
- 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
- Authority
- 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
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Classifications
-
- 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
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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
- A47L15/0018—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
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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
- A47L15/4214—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)
Description
- la Figure 1 représente une vue schématique et partielle d'un lave-vaisselle ;
- la Figure 2 illustre les principales étapes d'un exemple de procédé selon l'invention.
Claims (8)
- Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle comportant une cuve (3) remplie en liquide à partir d'une prise d'arrivée d'eau, comprenant un cycle de lavage (CI), suivi d'un cycle de rinçage (CR) caractérisé en ce qu'il comprend les étapes suivantes :mesure de la quantité d'eau restante (Qi) dans la cuve après une opération de vidange (V) en fin de cycle de lavages (CI); etprogrammation d'au moins un rinçage supplémentaire (Ri1, Ri2) dans le cycle de rinçage (CR) lorsque ladite quantité d'eau restante (Qi) est supérieure à une valeur de seuil (QS1).
- Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle selon la revendication 1, caractérisé en ce que l'étape de mesure de la quantité d'eau restante (Qi) est effectuée de manière différentielle par mesure du volume d'eau (QN) à apporter en début de cycle de rinçage (CR) pour atteindre un volume prédéterminé standard (QR) en fond de cuve.
- Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle selon la revendication 2, caractérisé en ce que l'étape de mesure différentielle est effectuée en présence d'un pressostat (10) qui mesure une hauteur manométrique d'eau.
- Lave-vaisselle (1) comprenant une cuve (3) remplie en liquide à partir d'une prise d'arrivée d'eau comprenant une électrovanne et des moyens pour fermer l'électrovanne lorsque la quantité d'eau nécessaire au fonctionnement du cycle de lavage (CI) ou du cycle de rinçage (CR) est égale à une quantité d'eau prédéterminée et un programmateur de cycle de lavage et de cycle de rinçage caractérisé en ce qu'il comprend des moyens pour mesurer la quantité d'eau restante (Qi) dans la cuve après une opération de vidange (V) en fin de cycle de lavage (CI) et des moyens pour commander le programmateur de manière à programmer au moins un rinçage supplémentaire (Ri1, Ri2) dans le cycle de rinçage (CR) lorsque ladite quantité d'eau restante (Qi) est supérieure à une valeur de seuil (QS1).
- Lave-vaisselle selon la revendication 4, caractérisé en ce que les moyens pour fermer l'électrovanne comprennent un pressostat (10).
- Lave-vaisselle selon l'une des revendications 4 ou 5, caractérisé en ce que les moyens pour mesurer la quantité d'eau restante (Qi) dans la cuve après une opération de vidange (V) en fin de cycle de lavage comprennent des moyens de type manomètre analogique.
- Lave-vaisselle selon l'une des revendications 4 ou 5, caractérisé en ce que les moyens pour mesurer la quantité d'eau restante (Qi) dans la cuve après une opération de vidange (V) en fin de cycle de lavage comprennent des moyens pour mesurer le temps d'alimentation en eau de la cuve lors du premier bain du cycle de rinçage.
- Lave-vaisselle selon l'une des revendications 4 ou 5, caractérisé en ce que les moyens pour mesurer la quantité d'eau restante (Qi) dans la cuve après une opération de vidange (V) en fin de cycle de lavage comprennent un capteur débimétrique pour mesurer le volume complémentaire d'eau (Qn) à amener pour compléter le volume de fond de cuve à un niveau prédéterminé (NR), lors du premier bain du cycle de rinçage.
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 (fr) | 2000-08-23 |
EP1029962B1 true EP1029962B1 (fr) | 2005-08-17 |
Family
ID=9542080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00400424A Expired - Lifetime EP1029962B1 (fr) | 1999-02-16 | 2000-02-15 | Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle et lave-vaisselle utilisant ce procédé |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1029962B1 (fr) |
DE (1) | DE60021930T2 (fr) |
ES (1) | ES2245926T3 (fr) |
FR (1) | FR2789568B1 (fr) |
Families Citing this family (5)
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)
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 (fr) * | 1994-06-09 | 2000-05-10 | Whirlpool Europe B.V. | Procédé pour optimiser l'utilisation de l'eau dans les machines à laver |
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 |
-
1999
- 1999-02-16 FR FR9901860A patent/FR2789568B1/fr not_active Expired - Lifetime
-
2000
- 2000-02-15 DE DE60021930T patent/DE60021930T2/de not_active Expired - Lifetime
- 2000-02-15 ES ES00400424T patent/ES2245926T3/es not_active Expired - Lifetime
- 2000-02-15 EP EP00400424A patent/EP1029962B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2789568B1 (fr) | 2001-05-04 |
FR2789568A1 (fr) | 2000-08-18 |
ES2245926T3 (es) | 2006-02-01 |
DE60021930T2 (de) | 2006-06-08 |
DE60021930D1 (de) | 2005-09-22 |
EP1029962A1 (fr) | 2000-08-23 |
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