EP4258969A1 - Method for operating a water-conducting electrical appliance and water-conducting electrical appliance - Google Patents

Method for operating a water-conducting electrical appliance and water-conducting electrical appliance

Info

Publication number
EP4258969A1
EP4258969A1 EP21823527.3A EP21823527A EP4258969A1 EP 4258969 A1 EP4258969 A1 EP 4258969A1 EP 21823527 A EP21823527 A EP 21823527A EP 4258969 A1 EP4258969 A1 EP 4258969A1
Authority
EP
European Patent Office
Prior art keywords
electrochemical cell
water
conductance
liquid
washing
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.)
Pending
Application number
EP21823527.3A
Other languages
German (de)
French (fr)
Inventor
Werner Strothoff
Daniel Ebke
Rainer Bicker
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4258969A1 publication Critical patent/EP4258969A1/en
Pending legal-status Critical Current

Links

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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/003—Washing machines, apparatus, or methods not otherwise provided for using electrochemical cells
    • 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
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
    • A47L15/4238—Arrangements to sterilize or disinfect dishes or washing liquids by using electrolytic cells
    • 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
    • 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 
    • D06F39/04—Heating arrangements
    • 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
    • D06F2103/20—Washing liquid condition, e.g. turbidity
    • 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
    • D06F2103/44—Current or voltage
    • 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
    • D06F2103/52—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to electric heating means, e.g. temperature or voltage
    • 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
    • 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
    • D06F2105/28—Electric heating
    • 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
    • D06F2105/42—Detergent or additive supply
    • 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 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs

Definitions

  • the invention relates to a method for operating a water-carrying electrical device and a water-carrying electrical device.
  • WO2018226706A1 describes a heating device that can be connected to water-carrying electrical devices in order to provide hot water.
  • the heating device is designed as a flow heater and has a reservoir, a cold water connection, an inlet and outlet, a pump and a hot water return.
  • this system is complex and requires a lot of space.
  • the invention therefore addresses the problem of providing a method for operating a water-carrying electrical device and a water-carrying electrical device that are simple and require little installation space.
  • the advantages that can be achieved with the invention consist in the fact that standardized conditions for operating the electrochemical cell are provided.
  • the standardized conditions are achieved by adjusting the conductance of the liquid in the electrochemical cell to the predetermined conductance.
  • the invention solves this problem by setting the conductance of the liquid in the electrochemical cell to the predetermined conductance so that this design and control effort is eliminated or at least minimized since the electrochemical cell can always work under the same conditions.
  • the water-carrying electrical device is compact.
  • the invention relates to a method for operating a water-bearing electrical device with a water intake element, an electrochemical cell, a Dosing device for dosing a detergent and/or cleaning agent containing a conductivity indicator into the electrochemical cell, comprising a) conducting water into the electrochemical cell; b) Dosing the washing and/or cleaning agent containing the conductivity sensor into the electrochemical cell or into the water flowing through it; c) determining a conductance of the liquid located in the electrochemical cell following steps a) and b); and d) setting the determined conductance to a predetermined conductance.
  • the power required to heat the liquid depends on the conductivity of the liquid to be heated.
  • the electrochemical cell can be operated under the same conditions, regardless of the conductivity, by adjusting the electrical conductivity or conductivity of the liquid resulting from the supply of water and the washing and/or cleaning agent containing conductivity sensors to the predetermined conductivity or the electrical conductivity of the water fed into the electrochemical cell.
  • This system can be used particularly advantageously in regions with low water hardness and therefore low water conductivity.
  • Drinking water is preferably fed to the electrochemical cell T in step a).
  • the conductivity of drinking water differs regionally.
  • step d) comprises
  • the determined conductance can be set in a simple manner to the predetermined conductance value of the liquid in the electrochemical cell.
  • Step c) preferably comprises applying a predetermined voltage to the electrochemical cell, measuring a current flow in the electrochemical cell and determining the conductance based on the measured current flow.
  • the electrochemical cell is preferably designed for a working range which is above a conductance which is present at a water hardness above 14° dH, more preferably above 17° dH, even more preferably above 21° dH.
  • the predetermined conductance is preferably stored in the water-carrying electrical device.
  • the electrochemical cell when the determined conductance is equal to the predetermined conductance, the electrochemical cell is put into operation in such a way that the liquid in it is heated.
  • the electrochemical cell is put into operation, for example, by applying an alternating voltage to its electrodes.
  • the liquid is conducted from the electrochemical cell into the water receiving element during and/or subsequent to the heating. There, the liquid can then wash and/or clean the water absorption element and/or objects located therein.
  • the liquid is preferably conducted from the electric cell into the water absorption element and from there again into the electric cell, so that it is circulated through the electric cell and the water absorption element.
  • the liquid is circulated from a first region of the water receiving member through the electrochemical cell to a second region of the water receiving member. This further improves the washing and/or cleaning performance of the liquid.
  • Steps c) and d) are preferably carried out during the heating of the liquid in the electrochemical cell. This ensures that the electrochemical cell is operated under constant conditions during heating.
  • the conductance transmitter is selected from the group consisting of alkali carrier, inorganic or organic acid, salt of organic acid, phosphonate, surfactant and/or mixtures thereof.
  • the conductivity transmitter can represent part of the washing and/or cleaning agent, in which case the washing and/or cleaning agent then contains, for example, further washing and/or cleaning-active substances.
  • the washing and/or cleaning agent can alternatively consist of the conductivity sensor.
  • the conductivity generated by the conductivity sensor is higher than that of the water that is available for diluting the washing and/or cleaning agent containing the conductivity sensor.
  • the invention also relates to a water-carrying electrical device, having a water intake element, an electrochemical cell, a metering device that is designed to meter a detergent and/or cleaning agent containing a conductor into the electrochemical cell or into the water flowing through it, and a control unit that is configured to use a method according to one or more of the preceding to carry out described embodiments.
  • the electrochemical cell has electrodes in the form of an anode and a cathode to which a voltage can be applied.
  • the electrochemical cell is preferably designed to heat the liquid located in it when an AC voltage is applied to the anode and the cathode.
  • the water-carrying electrical device is preferably designed as a washing machine or dishwasher.
  • the device preferably also has a flooding system which is designed to convey water from a first area of the water holding element through the electrochemical cell into a second area of the water holding element.
  • FIG. 1 shows a partial flow chart of a method according to the invention.
  • FIG. 1 shows a partial flow chart of a method according to the invention.
  • the method is carried out in a water-carrying electrical device which has an electrochemical cell into which water is conducted and a washing and/or cleaning agent containing a conductivity sensor is metered in, so that there is a liquid in the electrochemical cell.
  • a conductivity of the liquid located in the electrochemical cell is determined from water and detergent and/or cleaning agent containing a conductivity sensor.
  • Step 2 is then carried out, in which the determined conductance is compared with a predetermined conductance.
  • step 1 If, in a determination 3, the determined conductance is greater than the predetermined conductance, water is introduced into the electrochemical cell to adjust the conductance of the liquid to the predetermined conductance. If, in a determination 5, the determined conductance is equal to the predetermined conductance, the electrochemical cell is put into operation in a step 6, so that the liquid in it is heated. If in a finding 7 the determined conductance is less than the predetermined conductance, in in a step 8 detergent and/or cleaning agent containing a conductivity sensor is metered into the electrochemical cell in order to set the conductivity of the liquid to the predetermined conductivity. After steps 4, 6 and 8, step 1 can be repeated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention relates to a method for operating a water-conducting electrical appliance comprising a water-receiving element, an electrochemical cell, a metering device for metering a washing and/or cleaning agent that contains a conductance-modifier into the electrochemical cell, the method comprising: a) conducting water into the electrochemical cell; b) metering the washing and/or cleaning agent that contains the conductance-modifier into the electrochemical cell or into the water flowing therethrough; c) determining a conductance of the liquid located in the electrochemical cell following steps a) and b); and d) adjusting the determined conductance to a predefined conductance. The invention also relates to a corresponding water-conducting electrical appliance.

Description

Beschreibung description
Verfahren zum Betreiben eines wasserführenden elektrischen Geräts und wasserführendes elektrisches Gerät Method for operating a water-carrying electrical device and water-carrying electrical device
Die Erfindung betrifft ein Verfahren zum Betreiben eines wasserführenden elektrischen Geräts und ein wasserführendes elektrisches Gerät. The invention relates to a method for operating a water-carrying electrical device and a water-carrying electrical device.
WO2018226706A1 beschreibt eine Heizeinrichtung, die an wasserführende elektrische Geräte angeschlossen werden kann, um Warmwasser bereitzustellen. Die Heizeinrichtung ist als Durchlauferhitzer ausgebildet und weist ein Reservoir, einen Kaltwasseranschluss, einen Ein- und Auslass, eine Pumpe und einen Warmwasserrücklauf auf. Dieses System ist jedoch komplex und benötigt viel Bauraum. WO2018226706A1 describes a heating device that can be connected to water-carrying electrical devices in order to provide hot water. The heating device is designed as a flow heater and has a reservoir, a cold water connection, an inlet and outlet, a pump and a hot water return. However, this system is complex and requires a lot of space.
Der Erfindung stellt sich somit das Problem, ein Verfahren zum Betreiben eines wasserführenden elektrischen Geräts und ein wasserführendes elektrisches Gerät bereitzustellen, die einfach sind und wenig Bauraum benötigen. The invention therefore addresses the problem of providing a method for operating a water-carrying electrical device and a water-carrying electrical device that are simple and require little installation space.
Erfindungsgemäß wird dieses Problem durch ein Verfahren mit den Merkmalen des Patentanspruchs 1 und ein wasserführendes elektrisches Gerät mit den Merkmalen des Patentanspruchs 9 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen. According to the invention, this problem is solved by a method having the features of patent claim 1 and a water-carrying electrical device having the features of patent claim 9 . Advantageous refinements and developments of the invention result from the following dependent claims.
Die mit der Erfindung erreichbaren Vorteile bestehen neben einer Reduzierung der Komplexität des Systems und einer Verkleinerung des Bauraums darin, dass standardisierte Bedingungen zum Betreiben der elektrochemischen Zelle bereitgestellt werden. Die standardisierten Bedingungen werden dadurch erreicht, dass der Leitwert der Flüssigkeit in der elektrochemischen Zelle auf den vorbestimmten Leitwert eingestellt wird. In addition to reducing the complexity of the system and reducing the installation space, the advantages that can be achieved with the invention consist in the fact that standardized conditions for operating the electrochemical cell are provided. The standardized conditions are achieved by adjusting the conductance of the liquid in the electrochemical cell to the predetermined conductance.
Da Wasser regional unterschiedliche Leitwerte aufweist, ist das Aufheizen des Wassers üblicherweise mit unterschiedlichen Parametern durchzuführen. Dies führt zu einem erhöhten konstruktiven Aufwand beispielsweise von benötigten Elektrodenflächen und Regelaufwand, um dies zu kompensieren. Die Erfindung löst dieses Problem, in dem der Leitwert der sich in der elektrochemischen Zelle befindenden Flüssigkeit auf den vorbestimmten Leitwert eingestellt wird, so dass dieser konstruktive und regeltechnische Aufwand entfällt oder zumindest minimiert ist, da die elektrochemische Zelle immer unter gleichen Bedingungen arbeiten kann. Das wasserführende elektrische Gerät ist kompakt ausgebildet. Since water has different conductance values from region to region, the water is usually heated with different parameters. This leads to an increased design effort, for example in terms of the required electrode surfaces and control effort, in order to compensate for this. The invention solves this problem by setting the conductance of the liquid in the electrochemical cell to the predetermined conductance so that this design and control effort is eliminated or at least minimized since the electrochemical cell can always work under the same conditions. The water-carrying electrical device is compact.
Die Erfindung betrifft ein Verfahren zum Betreiben eines wasserführenden elektrischen Geräts mit einem Wasseraufnahmeelement, einer elektrochemischen Zelle, einer Dosiereinrichtung zum Dosieren von einem Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittel in die elektrochemische Zelle, aufweisend a) Leiten von Wasser in die elektrochemische Zelle; b) Dosieren des Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittels in die elektrochemische Zelle oder in das sie durchströmende Wasser; c) Ermitteln eines Leitwerts der sich im Anschluss an die Schritte a) und b) in der elektrochemischen Zelle befindenden Flüssigkeit; und d) Einstellen des ermittelten Leitwerts auf einen vorbestimmten Leitwert. The invention relates to a method for operating a water-bearing electrical device with a water intake element, an electrochemical cell, a Dosing device for dosing a detergent and/or cleaning agent containing a conductivity indicator into the electrochemical cell, comprising a) conducting water into the electrochemical cell; b) Dosing the washing and/or cleaning agent containing the conductivity sensor into the electrochemical cell or into the water flowing through it; c) determining a conductance of the liquid located in the electrochemical cell following steps a) and b); and d) setting the determined conductance to a predetermined conductance.
Die zum Heizen der Flüssigkeit benötigte Leistung ist abhängig von der Leitfähigkeit der zu erhitzenden Flüssigkeit. Durch Einstellen der elektrischen Leitfähigkeit bzw. des Leitwerts der Flüssigkeit, die aus der Zufuhr von Wasser und des Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittels resultiert, auf den vorbestimmten Leitwert, kann die elektrochemische Zelle unter gleichen Bedingungen betrieben werden, unabhängig von dem Leitwert bzw. der elektrischen Leitfähigkeit des in die elektrochemische Zelle zugeführten Wassers. Besonders vorteilhaft ist dieses System in Regionen mit niedrigen Wasserhärten und somit niedrigen Leitwerten des Wassers einsetzbar. The power required to heat the liquid depends on the conductivity of the liquid to be heated. The electrochemical cell can be operated under the same conditions, regardless of the conductivity, by adjusting the electrical conductivity or conductivity of the liquid resulting from the supply of water and the washing and/or cleaning agent containing conductivity sensors to the predetermined conductivity or the electrical conductivity of the water fed into the electrochemical cell. This system can be used particularly advantageously in regions with low water hardness and therefore low water conductivity.
Bevorzugt wird der elektrochemischen Zelle T in dem Schritt a) Trinkwasser zugeführt. Der Leitwert von Trinkwasser unterscheidet sich regional. Drinking water is preferably fed to the electrochemical cell T in step a). The conductivity of drinking water differs regionally.
In einer bevorzugten Ausführungsform weist der Schritt d) auf In a preferred embodiment, step d) comprises
Vergleichen des vorbestimmten Leitwerts mit dem ermittelten Leitwert; und Comparing the predetermined conductance with the determined conductance; and
Leiten von Wasser in die elektrochemische Zelle, wenn der ermittelte Leitwert größer ist als der vorbestimmte Leitwert, und Dosieren des Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittels in die elektrochemische Zelle, wenn der ermittelte Leitwert kleiner ist als der vorbestimmte Leitwert. Conducting water into the electrochemical cell when the determined conductance is greater than the predetermined conductance, and dosing the washing and/or cleaning agent containing the conductance indicator into the electrochemical cell if the determined conductance is less than the predetermined conductance.
Dadurch kann der ermittelte Leitwert auf einfache Weise auf den vorbestimmten Leiterwert der sich in der elektrochemischen Zelle befindenden Flüssigkeit eingestellt werden. As a result, the determined conductance can be set in a simple manner to the predetermined conductance value of the liquid in the electrochemical cell.
Bevorzugt weist der Schritt c) Anlegen einer vorbestimmten Spannung an die elektrochemische Zelle, Messen eines Stromflusses in der elektrochemischen Zelle und Ermitteln des Leitwerts anhand des gemessenen Stromflusses auf. Dadurch kann der Leitwert, der sich in der elektrochemischen Zelle befindenden Flüssigkeit auf einfache Weise bestimmt werden. Bevorzugt ist die elektrochemische Zelle für einen Arbeitsbereich ausgelegt, der oberhalb eines Leitwerts liegt, der bei einer Wasserhärte oberhalb von 14°dH, bevorzugter oberhalb von 17°dH, noch bevorzugter oberhalb von 21°dH vorliegt. Der vorbestimmte Leitwert ist bevorzugt in dem wasserführenden elektrischen Gerät hinterlegt. Step c) preferably comprises applying a predetermined voltage to the electrochemical cell, measuring a current flow in the electrochemical cell and determining the conductance based on the measured current flow. As a result, the conductance of the liquid in the electrochemical cell can be determined in a simple manner. The electrochemical cell is preferably designed for a working range which is above a conductance which is present at a water hardness above 14° dH, more preferably above 17° dH, even more preferably above 21° dH. The predetermined conductance is preferably stored in the water-carrying electrical device.
In einer bevorzugten Ausführungsform wird, wenn der ermittelte Leitwert gleich zu dem vorbestimmten Leitwert ist, die elektrochemische Zelle derart in Betrieb genommen, dass die sich in ihr befindende Flüssigkeit erhitzt wird. Die elektrochemische Zelle wird beispielsweise dadurch in Betrieb genommen, dass an ihre Elektroden eine Wechselspannung angelegt wird. Bevorzugt wird die Flüssigkeit während und/oder im Anschluss an das Erhitzen aus der elektrochemischen Zelle in das Wasseraufnahmeelement geleitet. Dort kann die Flüssigkeit dann das Wasseraufnahmeelement und/oder sich darin befindende Gegenstände waschen und/oder reinigen. In a preferred embodiment, when the determined conductance is equal to the predetermined conductance, the electrochemical cell is put into operation in such a way that the liquid in it is heated. The electrochemical cell is put into operation, for example, by applying an alternating voltage to its electrodes. Preferably, the liquid is conducted from the electrochemical cell into the water receiving element during and/or subsequent to the heating. There, the liquid can then wash and/or clean the water absorption element and/or objects located therein.
Bevorzugt wird die Flüssigkeit aus der elektrischen Zelle in das Wasseraufnahmeelement geleitet und von dort wieder in die elektrische Zelle geleitet, so dass es im Kreislauf durch die elektrische Zelle und das Wasseraufnahmeelement gefördert wird. In einer bevorzugten Ausführungsform wird während und/oder nach dem Erhitzen der Flüssigkeit in der elektrochemischen Zelle die Flüssigkeit im Kreislauf von einem ersten Bereich des Wasseraufnahmeelements durch die elektrochemische Zelle zu einem zweiten Bereich des Wasseraufnahmeelements geleitet. Dadurch wird die Wasch- und/oder Reinigungsleistung der Flüssigkeit weiterhin verbessert. The liquid is preferably conducted from the electric cell into the water absorption element and from there again into the electric cell, so that it is circulated through the electric cell and the water absorption element. In a preferred embodiment, during and/or after the heating of the liquid in the electrochemical cell, the liquid is circulated from a first region of the water receiving member through the electrochemical cell to a second region of the water receiving member. This further improves the washing and/or cleaning performance of the liquid.
Bevorzugt werden während des Erhitzens der Flüssigkeit in der elektrochemischen Zelle die Schritte c) und d) durchgeführt. Dadurch wird sichergestellt, dass die elektrochemische Zelle während des Erhitzens unter konstanten Bedingungen betrieben wird. Steps c) and d) are preferably carried out during the heating of the liquid in the electrochemical cell. This ensures that the electrochemical cell is operated under constant conditions during heating.
In einer bevorzugten Ausführungsform ist der Leitwertgeber ausgewählt aus der Gruppe, bestehend aus Alkaliträger, anorganischer oder organischer Säure, Salz von organischer Säure, Phosphonat, Tensid und/oder deren Mischungen. Der Leitwertgeber kann einen Teil des Wasch- und/oder Reinigungsmittels darstellen, dann enthält das Wasch- und/oder Reinigungsmittel beispielsweise weiterhin wasch- und/oder reinigungsaktive Substanzen. Das Wasch- und/oder Reinigungsmittel kann alternativ aus dem Leitwertgeber bestehen. Der durch den Leitwertgeber erzeugte Leitwert ist höher als der des Wassers, das zur Verdünnung des Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittels zur Verfügung steht. In a preferred embodiment, the conductance transmitter is selected from the group consisting of alkali carrier, inorganic or organic acid, salt of organic acid, phosphonate, surfactant and/or mixtures thereof. The conductivity transmitter can represent part of the washing and/or cleaning agent, in which case the washing and/or cleaning agent then contains, for example, further washing and/or cleaning-active substances. The washing and/or cleaning agent can alternatively consist of the conductivity sensor. The conductivity generated by the conductivity sensor is higher than that of the water that is available for diluting the washing and/or cleaning agent containing the conductivity sensor.
Die Erfindung betrifft ferner ein wasserführendes elektrisches Gerät, aufweisend ein Wasseraufnahmeelement, eine elektrochemische Zelle, eine Dosiereinrichtung, die ausgebildet ist, ein Leitwergeber-haltiges Wasch- und/oder Reinigungsmittel in die elektrochemische Zelle oder in das sie durchströmende Wasser zu dosieren, und eine Steuereinheit, die konfiguriert ist, ein Verfahren nach einer oder mehreren der vorangehend beschriebenen Ausführungsformen auszuführen. The invention also relates to a water-carrying electrical device, having a water intake element, an electrochemical cell, a metering device that is designed to meter a detergent and/or cleaning agent containing a conductor into the electrochemical cell or into the water flowing through it, and a control unit that is configured to use a method according to one or more of the preceding to carry out described embodiments.
Die elektrochemische Zelle weist Elektroden in Form einer Anode und einer Kathode auf, an die eine Spannung anlegbar ist. Bevorzugt ist die elektrochemische Zelle ausgebildet, die sich in ihr befindende Flüssigkeit zu erhitzen, wenn an die Anode und die Kathode eine Wechselspannung angelegt ist. The electrochemical cell has electrodes in the form of an anode and a cathode to which a voltage can be applied. The electrochemical cell is preferably designed to heat the liquid located in it when an AC voltage is applied to the anode and the cathode.
Bevorzugt ist das wasserführende elektrische Gerät als Waschmaschine oder Geschirrspüler ausgelegt. The water-carrying electrical device is preferably designed as a washing machine or dishwasher.
Bevorzugt weist das Gerät weiterhin ein Umflutungssystem auf, das ausgebildet ist, Wasser aus einem ersten Bereich des Wasseraufnahmeelements durch die elektrochemische Zelle in einen zweiten Bereich des Wasseraufnahmeelements zu fördern. The device preferably also has a flooding system which is designed to convey water from a first area of the water holding element through the electrochemical cell into a second area of the water holding element.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows
Fig. 1 ein Teil-Ablaufdiagramm eines erfindungsgemäßen Verfahrens. 1 shows a partial flow chart of a method according to the invention.
Fig. 1 zeigt ein Teil-Ablaufdiagramm eines erfindungsgemäßen Verfahrens. Das Verfahren wird in einem wasserführenden elektrischen Gerät durchgeführt, das eine elektrochemische Zelle aufweist, in die Wasser geleitet und ein Leitwertgeber-haltiges Wasch- und/oder Reinigungsmittels dosiert ist, so dass sich eine Flüssigkeit in der elektrochemischen Zelle befindet. In einem Schritt 1 wird ein Leitwert der sich in der elektrochemischen Zelle befindenden Flüssigkeit aus Wasser und Leitwertgeber-haltigem Wasch- und/oder Reinigungsmittel ermittelt. Anschließend wird ein Schritt 2 durchgeführt, in dem der ermittelte Leitwert mit einem vorbestimmten Leitwert verglichen wird. 1 shows a partial flow chart of a method according to the invention. The method is carried out in a water-carrying electrical device which has an electrochemical cell into which water is conducted and a washing and/or cleaning agent containing a conductivity sensor is metered in, so that there is a liquid in the electrochemical cell. In a step 1, a conductivity of the liquid located in the electrochemical cell is determined from water and detergent and/or cleaning agent containing a conductivity sensor. Step 2 is then carried out, in which the determined conductance is compared with a predetermined conductance.
Wenn in einer Feststellung 3 der ermittelte Leitwert größer ist als der vorbestimmte Leitwert, wird Wasser in die elektrochemische Zelle geleitet, um den Leitwert der Flüssigkeit auf den vorbestimmten Leitwert einzustellen. Wenn in einer Feststellung 5 der ermittelte Leitwert gleich zu dem vorbestimmten Leitwert ist, wird die elektrochemische Zelle in einem Schritt 6 in Betrieb genommen, so dass die sich in ihr befindende Flüssigkeit erhitzt wird. Wenn in einer Feststellung 7 der ermittelte Leitwert kleiner ist als der vorbestimmte Leitwert, wird in einem Schritt 8 Leitwertgeber-haltiges Wasch- und/oder Reinigungsmittel in die elektrochemische Zelle dosiert, um den Leitwert der Flüssigkeit auf den vorbestimmten Leitwert einzustellen. Nach den Schritten 4, 6 und 8 kann weiterhin der Schritt 1 erneut durchgeführt werden. If, in a determination 3, the determined conductance is greater than the predetermined conductance, water is introduced into the electrochemical cell to adjust the conductance of the liquid to the predetermined conductance. If, in a determination 5, the determined conductance is equal to the predetermined conductance, the electrochemical cell is put into operation in a step 6, so that the liquid in it is heated. If in a finding 7 the determined conductance is less than the predetermined conductance, in in a step 8 detergent and/or cleaning agent containing a conductivity sensor is metered into the electrochemical cell in order to set the conductivity of the liquid to the predetermined conductivity. After steps 4, 6 and 8, step 1 can be repeated.

Claims

6 Patentansprüche 6 patent claims
1. Verfahren zum Betreiben eines wasserführenden elektrischen Geräts mit einem Wasseraufnahmeelement, einer elektrochemischen Zelle, einer Dosiereinrichtung zum Dosieren von einem Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittel in die elektrochemische Zelle, aufweisend a) Leiten von Wasser in die elektrochemische Zelle; b) Dosieren des Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittels in die elektrochemische Zelle oder in das sie durchströmende Wasser; c) Ermitteln eines Leitwerts der sich im Anschluss an die Schritte a) und b) in der elektrochemischen Zelle befindenden Flüssigkeit; und d) Einstellen des ermittelten Leitwerts auf einen vorbestimmten Leitwert. 1. A method for operating a water-carrying electrical device with a water absorption element, an electrochemical cell, a dosing device for dosing a conductivity sensor-containing washing and/or cleaning agent into the electrochemical cell, comprising a) conducting water into the electrochemical cell; b) Dosing the washing and/or cleaning agent containing the conductivity sensor into the electrochemical cell or into the water flowing through it; c) determining a conductance of the liquid located in the electrochemical cell following steps a) and b); and d) setting the determined conductance to a predetermined conductance.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der Schritt d) aufweist 2. The method according to claim 1, characterized in that step d) comprises
- Vergleichen des vorbestimmten Leitwerts mit dem ermittelten Leitwert; und - Comparing the predetermined conductance with the determined conductance; and
- Leiten von Wasser in die elektrochemische Zelle, wenn der ermittelte Leitwert größer ist als der vorbestimmte Leitwert und Dosieren des Leitwertgeber-haltigen Wasch- und/oder Reinigungsmittels in die elektrochemische Zelle oder in das sie durchströmende Wasser, wenn der ermittelte Leitwert kleiner ist als der vorbestimmte Leitwert. - Conducting water into the electrochemical cell if the determined conductance is greater than the predetermined conductance and dosing the washing and/or cleaning agent containing the conductance indicator into the electrochemical cell or into the water flowing through it if the determined conductance is less than the predetermined conductance.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schritt c) Anlegen einer vorbestimmten Spannung an die elektrochemische Zelle, Messen eines Stromflusses in der elektrochemischen Zelle und Ermitteln des Leitwerts anhand des gemessenen Stromflusses aufweist. 3. The method according to claim 1 or 2, characterized in that step c) comprises applying a predetermined voltage to the electrochemical cell, measuring a current flow in the electrochemical cell and determining the conductance based on the measured current flow.
4. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die elektrochemische Zelle für einen Arbeitsbereich ausgelegt ist, der oberhalb eines Leitwertes liegt, der bei einer Wasserhärte oberhalb von 14°dH, bevorzugter oberhalb von 17°dH, noch bevorzugter oberhalb von 21°dH vorliegt. 4. The method according to any one of the preceding claims, characterized in that the electrochemical cell is designed for a working range that is above a conductance that occurs at a water hardness above 14° dH, preferably above 17° dH, even more preferably above 21 °dH is present.
5. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass, wenn der ermittelte Leitwert gleich zu dem vorbestimmten Leitwert ist, die elektrochemische Zelle derart in Betrieb genommen wird, dass die sich in ihr befindende Flüssigkeit erhitzt wird. 7 5. The method according to any one of the preceding claims, characterized in that when the determined conductance is equal to the predetermined conductance, the electrochemical cell is put into operation in such a way that the liquid located in it is heated. 7
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass während und/oder nach dem Erhitzen der Flüssigkeit in der elektrochemischen Zelle die Flüssigkeit im Kreislauf von einem ersten Bereich des Wasseraufnahmeelements durch die elektrochemische Zelle zu einem zweiten Bereich des Wasseraufnahmeelements geleitet wird. 6. The method according to claim 5, characterized in that during and/or after the heating of the liquid in the electrochemical cell the liquid is circulated from a first region of the water receiving element through the electrochemical cell to a second region of the water receiving element.
7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass während des Erhitzens der Flüssigkeit in der elektrochemischen Zelle die Schritte c) und d) durchgeführt werden. 7. The method according to claim 5 or 6, characterized in that steps c) and d) are carried out during the heating of the liquid in the electrochemical cell.
8. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Leitwertgeber ausgewählt ist aus der Gruppe, bestehend aus Alkaliträger, anorganischer oder organischer Säure, Salz von organischer Säure, Phosphonat, Tensid und/oder deren Mischungen. 8. The method according to any one of the preceding claims, characterized in that the conductivity transmitter is selected from the group consisting of alkali carrier, inorganic or organic acid, salt of organic acid, phosphonate, surfactant and / or mixtures thereof.
9. Wasserführendes elektrisches Gerät, aufweisend 9. Water-carrying electrical device, having
- ein Wasseraufnahmeelement, - a water absorbing element,
- eine elektrochemische Zelle, - an electrochemical cell,
- eine Dosiereinrichtung, die ausgebildet ist, ein Leitwertgeber-haltiges Wasch- und/oder Reinigungsmittel in die elektrochemische Zelle zu dosieren, - a metering device that is designed to meter a conductivity sensor-containing washing and/or cleaning agent into the electrochemical cell,
- eine Steuereinheit, die konfiguriert ist, ein Verfahren nach einem der vorangehenden Ansprüche auszuführen. - a control unit configured to carry out a method according to any one of the preceding claims.
10. Wasserführendes elektrisches Gerät, dadurch gekennzeichnet, dass es als Waschmaschine oder Geschirrspüler ausgebildet ist. 10. Water-carrying electrical device, characterized in that it is designed as a washing machine or dishwasher.
EP21823527.3A 2020-12-14 2021-11-30 Method for operating a water-conducting electrical appliance and water-conducting electrical appliance Pending EP4258969A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE20205917A BE1028882B1 (en) 2020-12-14 2020-12-14 Method for operating a water-carrying electrical device and water-carrying electrical device
PCT/EP2021/083510 WO2022128438A1 (en) 2020-12-14 2021-11-30 Method for operating a water-conducting electrical appliance and water-conducting electrical appliance

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EP4258969A1 true EP4258969A1 (en) 2023-10-18

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EP (1) EP4258969A1 (en)
KR (1) KR20230118837A (en)
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WO (1) WO2022128438A1 (en)

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CN1163314C (en) * 1998-01-22 2004-08-25 水株式会社 Washing process and washing unit
KR100477196B1 (en) * 2003-04-18 2005-03-21 경원엔터프라이즈 주식회사 Electolyte generating system for noncleanser washing machine
GB2437957A (en) * 2006-04-11 2007-11-14 Dyson Technology Ltd An electrolytic cell for the production of hydrogen peroxide
WO2008096350A2 (en) * 2007-02-06 2008-08-14 Lev Gurevich Laundering method system
CA3066086A1 (en) 2017-06-06 2018-12-13 Heatworks Technologies, Inc. Recirculating fluid heating systems

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BE1028882A1 (en) 2022-07-06
US20240044066A1 (en) 2024-02-08
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KR20230118837A (en) 2023-08-14
BE1028882B1 (en) 2022-07-12

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