EP0703311A1 - Procédé pour détecter l'alimentation en eau dans une machine à laver le linge ou lave-vaisselle - Google Patents

Procédé pour détecter l'alimentation en eau dans une machine à laver le linge ou lave-vaisselle Download PDF

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Publication number
EP0703311A1
EP0703311A1 EP95114853A EP95114853A EP0703311A1 EP 0703311 A1 EP0703311 A1 EP 0703311A1 EP 95114853 A EP95114853 A EP 95114853A EP 95114853 A EP95114853 A EP 95114853A EP 0703311 A1 EP0703311 A1 EP 0703311A1
Authority
EP
European Patent Office
Prior art keywords
water
temperature
washing machine
dishwasher
solenoid valve
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.)
Withdrawn
Application number
EP95114853A
Other languages
German (de)
English (en)
Inventor
Dieter Martin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0703311A1 publication Critical patent/EP0703311A1/fr
Withdrawn legal-status Critical Current

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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
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2105/02—Water supply
    • D06F2105/04—Water supply from separate hot and cold water inlets
    • 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
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid temperature
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the invention relates to a method for determining whether water flows into a program-controlled washing machine or dishwasher, which has a hot water connection and a cold water connection, each having a solenoid valve, and in which an additional device which does not intervene in the control of the washing machine or dishwasher is used, which has a has arranged in the water inlet of the washing machine or dishwasher and is connected to the solenoid valves of the hot water connection and cold water connection.
  • a flow sensor could be installed in the water inlet to determine whether water is entering the washing machine.
  • a sensor is too expensive in practice.
  • the known additional device has a pressure sensor in the water inlet. This registers the pressure changes in the water inlet that occur when opening and closing a solenoid valve that controls the water inlet into the washing machine.
  • a pressure sensor for detecting the Flowing or not flowing water is undesirably expensive and moreover prone to failure.
  • the service life of a pressure sensor is also relatively limited in this application.
  • the reason for the short life of the pressure sensor is, in particular, pressure surges in the water pipe system, which are caused by the rapid closing of water outlets, for example the one-hand mixer for the water inlet into a bathtub.
  • the water flow is relatively high, so that when the actuating lever is suddenly pressed down, a large amount of flow is suddenly stopped, as a result of which a strong pressure surge forms in the entire line system, which also loads the pressure sensor.
  • the invention is based on the problem of developing a method of the type mentioned at the outset by which the flow of water in the water inlet of a washing machine or dishwasher can be determined with as little effort as possible.
  • This problem is solved in accordance with the invention in that a temperature sensor is used as the sensor and the temperature change resulting from the inflow of water is determined in a fixed time unit to determine the flow of water with the additional device.
  • Such a temperature sensor can be obtained far more cost-effectively than a pressure sensor and also works trouble-free in continuous use, since it is not negatively influenced by pressure surges in the water inlet. Since there is often a temperature sensor in the water inlet of washing machines or dishwashers in order to be able to determine the temperature of the water flowing in from the hot water connection, this temperature sensor can be used to carry out the method according to the invention, so that then no changes to the hardware are required to carry out the method according to the invention. All that is required is to program a computer accordingly in the additional device.
  • a component namely the pressure sensor, is omitted and the result is that this does not result in a minor function, but surprisingly results in a lower susceptibility to failure, in addition to cost savings.
  • the method according to the invention could even be used if a washing machine or dishwasher has only one cold water connection. Even then, there would be a drop in temperature in the water inlet when the water flowed because the newly flowing water is usually colder than water that had been in the water inlet for some time and could therefore absorb heat from the environment.
  • the additional device by means of the solenoid valves is used to switch over to the other water inflow state when the temperature changes over time, then the flow of cold water can also be determined under these conditions, because in the case of water flowing into the washing machine or dishwasher Water a short-term opening of the solenoid valve for the hot water would result in a temperature rise at the temperature sensor. If the water inlet were closed on the washing machine or dishwasher side, there would be no water in the water inlet flow, then even when the solenoid valve of the hot water connection was opened, no warm water would reach the temperature sensor and thus no temporal temperature difference would occur.
  • the drawing shows the outline of a washing machine 1, which has a conventional water inlet 2 and a power cord 3 with a power plug 4.
  • a mixer 5 is connected, which has a hot water connection 6 and a cold water connection 7 is connected.
  • Solenoid valves 8, 9 can control the amount of hot and cold water flowing in.
  • water only gets into the washing machine 1 if, in addition to at least one of the solenoid valves 8, 9, a solenoid valve 10 in the water inlet 2 is also open.
  • This solenoid valve 10 is actuated by a control, not shown, of the washing machine 1.
  • This temperature sensor 11 is connected to a control unit 12, which has a mains plug 13 and a plug contact 14.
  • the mains plug 4 of the washing machine 1 can be plugged into this plug contact 14 so that it can be supplied with electrical energy via the control device 12.
  • a computer in the control unit 12 which controls the power supply to the washing machine 1 on the basis of the temperature signals of the temperature sensor 11 and the information about the power consumption of the washing machine 1, which is supplied by a current sensor installed in the control unit 12.
  • control device 12 On the front of the control device 12 there is a selector switch 15, with which one can set the washing process with which the program is to start, in accordance with the setting made on the washing machine 1. Furthermore, the control device 12 has a timer 16 with which the total duration of the interruption of the main washing process can be set. In addition, a temperature switch 17 is provided, which allows the temperature of the water supplied to the washing machine 1 to be adjusted.
  • the temperature in water inlet 2 remains constant or changes only slightly due to the heat given off or absorption of the water inlet to or from the ambient air. If cold water or hot water flows into the water inlet 2 by opening the solenoid valve 10 and one of the solenoid valves 8, 9, then the temperature at the temperature sensor 11 changes very quickly, which serves as an indication of the flow of water in the control unit.
  • the solenoid valve 8 of the cold water connection 7 is opened in order to obtain a steep drop in temperature, and thus a corresponding signal, due to a short-term drop in flowing, cold water only.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP95114853A 1994-09-22 1995-09-21 Procédé pour détecter l'alimentation en eau dans une machine à laver le linge ou lave-vaisselle Withdrawn EP0703311A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433747 1994-09-22
DE4433747A DE4433747A1 (de) 1994-09-22 1994-09-22 Verfahren zum Feststellen des Einlaufens von Wasser in eine Wasch- oder Spülmaschine

Publications (1)

Publication Number Publication Date
EP0703311A1 true EP0703311A1 (fr) 1996-03-27

Family

ID=6528834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114853A Withdrawn EP0703311A1 (fr) 1994-09-22 1995-09-21 Procédé pour détecter l'alimentation en eau dans une machine à laver le linge ou lave-vaisselle

Country Status (2)

Country Link
EP (1) EP0703311A1 (fr)
DE (1) DE4433747A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106617A1 (fr) * 2003-05-28 2004-12-09 Electrolux Home Products Corporation N.V. Machine a laver les vetements a agencement integre de vannes electromagnetiques
EP2301407A3 (fr) * 2009-09-02 2017-01-18 BSH Hausgeräte GmbH Lave-vaisselle et procédé de commande correspondant
EP4134477A1 (fr) * 2021-08-09 2023-02-15 Miele & Cie. KG Procédé et dispositif de commande permettant de déterminer une quantité d'eau et appareil de nettoyage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640934A1 (de) * 1996-10-04 1998-04-09 Jan Kuchta Vorrangschaltung zur sparsamen komfortablen Warmwasserbereitstellung in Warm- und Kaltwassersystemen
DE10014871A1 (de) * 2000-03-24 2001-10-11 Miele & Cie Verfahren zur Sensierung von Restwasser bei einer programmgesteuerten Geschirrspülmaschine oder Waschmaschine, sowie Spül- oder Waschmaschine zur Durchführung des Verfahrens
DE10222406A1 (de) * 2002-05-21 2003-12-11 Bsh Bosch Siemens Hausgeraete Wasserführendes Haushaltgerät, insbesondere Waschmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941337A1 (de) * 1979-10-12 1981-04-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Ueberwachungseinrichtung fuer den wasserzulauf von haushaltmaschinen wie geschirrspuel- und waeschebehandlungsmaschinen
EP0045838A1 (fr) * 1980-08-13 1982-02-17 Bosch-Siemens HausgerÀ¤te GmbH Procédé pour varier le déroulement du programme commandable à la main d'une machine à laver automatique et machine à laver pour la mise en oeuvre du procédé
US4528709A (en) * 1983-12-07 1985-07-16 Whirlpool Corporation Automatic temperature control for automatic washers
FR2558713A1 (fr) * 1984-01-31 1985-08-02 Bosch Siemens Hausgeraete Procede et dispositif de surveillance du deroulement du programme d'un lave-vaisselle commande par programme
DE8809548U1 (de) * 1988-07-27 1988-09-22 Martin, Dieter, 8788 Bad Brückenau Zusatzeinrichtung für Waschmaschinen
EP0355450A2 (fr) * 1988-08-25 1990-02-28 AEG Hausgeräte GmbH Dispositif pour commander l'alimentation en eau chaude et froide des machines à laver
DE4338140A1 (de) * 1993-11-09 1995-05-11 David Long Versorgungs- und Regelsystem für Wasch- und Spülmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941337A1 (de) * 1979-10-12 1981-04-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Ueberwachungseinrichtung fuer den wasserzulauf von haushaltmaschinen wie geschirrspuel- und waeschebehandlungsmaschinen
EP0045838A1 (fr) * 1980-08-13 1982-02-17 Bosch-Siemens HausgerÀ¤te GmbH Procédé pour varier le déroulement du programme commandable à la main d'une machine à laver automatique et machine à laver pour la mise en oeuvre du procédé
US4528709A (en) * 1983-12-07 1985-07-16 Whirlpool Corporation Automatic temperature control for automatic washers
FR2558713A1 (fr) * 1984-01-31 1985-08-02 Bosch Siemens Hausgeraete Procede et dispositif de surveillance du deroulement du programme d'un lave-vaisselle commande par programme
DE8809548U1 (de) * 1988-07-27 1988-09-22 Martin, Dieter, 8788 Bad Brückenau Zusatzeinrichtung für Waschmaschinen
EP0355450A2 (fr) * 1988-08-25 1990-02-28 AEG Hausgeräte GmbH Dispositif pour commander l'alimentation en eau chaude et froide des machines à laver
DE4338140A1 (de) * 1993-11-09 1995-05-11 David Long Versorgungs- und Regelsystem für Wasch- und Spülmaschinen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106617A1 (fr) * 2003-05-28 2004-12-09 Electrolux Home Products Corporation N.V. Machine a laver les vetements a agencement integre de vannes electromagnetiques
US7650765B2 (en) 2003-05-28 2010-01-26 Electrolux Home Products Corporation N.V. Clothes washing machine with an integrated arrangement of electromagnetic valves
EP2301407A3 (fr) * 2009-09-02 2017-01-18 BSH Hausgeräte GmbH Lave-vaisselle et procédé de commande correspondant
EP4134477A1 (fr) * 2021-08-09 2023-02-15 Miele & Cie. KG Procédé et dispositif de commande permettant de déterminer une quantité d'eau et appareil de nettoyage

Also Published As

Publication number Publication date
DE4433747A1 (de) 1996-03-28

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