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WO2024165631A1 - Machine de préparation de boisson avec mesure de niveau - Google Patents

Machine de préparation de boisson avec mesure de niveau Download PDF

Info

Publication number
WO2024165631A1
WO2024165631A1 PCT/EP2024/053077 EP2024053077W WO2024165631A1 WO 2024165631 A1 WO2024165631 A1 WO 2024165631A1 EP 2024053077 W EP2024053077 W EP 2024053077W WO 2024165631 A1 WO2024165631 A1 WO 2024165631A1
Authority
WO
WIPO (PCT)
Prior art keywords
preparation machine
sensor arrangement
liquid
liquid tank
machine according
Prior art date
Application number
PCT/EP2024/053077
Other languages
German (de)
English (en)
Inventor
Christoph Grob
Original Assignee
Jura Elektroapparate Ag
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 Jura Elektroapparate Ag filed Critical Jura Elektroapparate Ag
Publication of WO2024165631A1 publication Critical patent/WO2024165631A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A47J31/4457—Water-level indicators
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J2203/00—Devices having filling level indicating means

Definitions

  • the invention relates to a beverage preparation machine with a liquid tank and a sensor arrangement that reacts to a fill level in the liquid tank.
  • the invention further relates to a method for monitoring a fill level of a liquid in a liquid tank, wherein a first signal is generated for a fill level.
  • German patent application DE 10 2006 043 906 A1 discloses a brewed beverage machine with a water tank, a sensor for detecting the fill level of the water tank and a display device for displaying a fill level detected by the sensor, which is further developed in that the fill level is indicated in the display as the remaining number of cups to be obtained from the available water.
  • the European patent application EP 1 472 963 A1 describes that in a device for dispensing milk and/or milk foam from a container containing milk, the container is placed in a coolable cabinet.
  • the milk is fed via a discharge line and another line into an emulsifying device arranged outside the coolable cabinet. From this emulsifying device, the product is dispensed via the dispensing nozzle.
  • the Steam can be introduced into the emulsifying device, with which the milk passed through the emulsifying device can be heated and/or foamed.
  • the other line consists of a flexible hose which is inserted into a peristaltic pump.
  • This peristaltic pump is equipped with changeover devices with which the peristaltic pump can be changed from a closed pumping state to an open state which allows the flexible hose to pass through.
  • This device can be used to optimally dispense milk of different temperatures or milk foam, and it can also be cleaned optimally.
  • This device is advantageously integrated into a coffee machine, whereby different types of coffee with added milk can be dispensed automatically.
  • DE 10 2018 112 304 A1 describes a method for indicating a required water change of a water container for a beverage preparation device.
  • the method comprises a step of reading in an insertion signal, a step of determining a change parameter and a step of outputting a change signal.
  • the insertion signal which represents an insertion time of the water container in the beverage preparation device, is read in.
  • the change parameter of the water container is determined using the insertion signal.
  • the change signal for indicating the water change is output using the change parameter.
  • DE 10 2015 203 744 A1 further discloses a water-conducting household appliance, in particular a fully automatic coffee machine or washing machine or dishwasher, comprising a container for storing a consumable with walls of the container, wherein the walls comprise electrically conductive plates with electrical connections, and electronics for signal detection, in particular for detecting a fill level, is further developed in that the walls (3) comprise conductive plastic as plates (4).
  • EP 2 702 908 A1 describes a device for providing liquid for a drinks machine, in particular for a coffee machine or a coffee machine, with a water tank with at least one water inlet that can be controlled to fill the water tank with a water connection, in particular with an overpressure water connection and preferably with a drinking water network, a control device for controlling the controllably connectable water inlet and at least one fill level sensor for generating a signal that at least indicates whether or not a first fill level of liquid within the water tank has been reached or exceeded.
  • the solution according to the invention provides that the at least one fill level sensor can be connected or is connected to the control device for transmitting the signal, and that the control device is designed to control the water inlet depending on the signal from the at least one fill level sensor and at least one operating mode.
  • the invention is based on the object of enabling continuous or discrete level measurements on a liquid tank via a sensor arrangement.
  • the invention proposes the features of claim 1.
  • the invention thus provides In a beverage preparation machine, to achieve the above-mentioned object, it is proposed that the sensor arrangement is designed to distinguish between a plurality of fill levels.
  • the beverage preparation machine can, for example, be a coffee machine with a manually fillable liquid tank or a coffee machine with automatic refilling of the liquid tank via a fixed water connection.
  • the liquid can be water or milk, for example.
  • Such a device is particularly advantageous because, depending on the level of the liquid in the liquid tank, various machine-specific parameters can be identified and predicted, which in turn creates an opportunity for the operator to take action.
  • the sensor arrangement is designed for continuous level measurement.
  • a fill level is sufficient to activate an operating process
  • a continuous level measurement can be used to determine whether liquid is being added to or removed from the liquid tank, or whether liquid needs to be added to or removed. It can therefore be detected in which direction a change in the level is taking place.
  • the sensor arrangement is designed to measure at least one physical property that correlates with the fill level.
  • the fill level can be defined using a variety of physical properties, which means that different measuring principles and/or measuring devices of the sensor arrangement can be used.
  • the correlation makes it easy to carry out continuous or very finely graduated measurements of the fill level.
  • the physical property which correlates with the fill level is preferably a mass, a length, a time and/or an electrical current strength.
  • a measured value can be determined and assigned to a fill level, for example by means of weight sensors, whereby a change in a fill level, which is proportional to a change in the weight of the liquid in the liquid tank, can also be determined via a weight measurement.
  • Another possibility is to measure a fill level and/or a change in fill levels preferably by means of displacement or
  • sensors that determine a fill level and/or a change in the fill levels via a time-dependent component.
  • the use of optical sensors can be provided to determine the fill level and/or the change in the fill level, whereby the characteristic physical property for determining the fill level is the time that a pulse emitted by a light source requires to return to the light source via the reflection of the fill level.
  • the use of ultrasonic sensors is possible, which realize a fill level measurement over the time span of a sent and received ultrasonic pulse.
  • the fill level and/or a change in the fill levels can be determined by means of electrical methods. For example, the electrical conductivity of two electrodes through the liquid can be measured, whereby the electrical resistance between the electrodes changes depending on the fill level of the liquid in the liquid tank.
  • a drainage funnel can be formed in the liquid tank. This makes it possible to recognize, for example in the case of a rapid change in the fill level, that the liquid tank must soon be refilled.
  • the sensor arrangement has at least two sensors.
  • One of the advantages here is the possibility of measuring discrete measured values.
  • a combination of different sensors can be provided.
  • the senor arrangement is provided with a conductive float and an electrode, in particular the float is electrically contacted. It is particularly advantageous that the level measurement can be carried out using two different measuring methods. The level can thus be determined, for example, via the electrical conductivity, which depends on the position of the float, using an electrode above the liquid.
  • the sensor arrangement can be and/or is positioned at different positions of the liquid tank.
  • the sensor arrangement can, for example, be or will be placed outside and/or inside the liquid tank.
  • the sensor arrangement can be and/or is positioned above and/or below the liquid tank.
  • the sensor used to record the physical property can be positioned outside and/or inside the liquid tank.
  • a displacement sensor can be mounted outside the liquid tank, with a float sensor lying in the liquid being positioned inside the liquid tank.
  • the sensor arrangement is not restricted to the use of liquid-tight sensors and that the liquid tank can be removed without any problems.
  • a further development according to the invention provides that a testing device is set up to compare a quantity of liquid required for an activated operating process with a quantity of liquid detected by the sensor arrangement, in particular to issue a warning signal before the operating process is carried out.
  • an operating process can be the release for carrying out a maintenance process, whereby it is advantageous that by comparing a liquid quantity required for this activated operating process with a liquid quantity in the liquid tank detected by the sensor arrangement, it is ensured that the entire maintenance process can be carried out without interruption.
  • warning signal can be issued, for example, as an optical, digital and/or acoustic signal, although a combination of signals is also possible.
  • a test device for example the one already mentioned, is set up to compare a temporal change in the filling level with a target value, in particular to issue a warning signal in the event of a deviation outside a tolerance range.
  • a target value in particular to issue a warning signal in the event of a deviation outside a tolerance range.
  • a sudden reduction in the change in the fill level can be an indication that the fill level is above a filter unit placed in the liquid tank and is therefore almost completely full.
  • the advantage here is that, if there is a deviation from the target value, machine-specific parameters can be detected, and the operator is given an opportunity to take action by issuing a warning signal.
  • a deviation in the temporal change of the fill level can have various causes, such as malfunctions in the pump or the brewing unit.
  • a reduction in the amount of liquid pumped by a pump caused by increased flow resistance in the lines e.g. calcification, blocked filter unit
  • the operator can therefore be suggested a maintenance procedure or a change of the filter unit, for example. This can also be used to check whether a filter unit is actually used, since a missing filter unit also influences the temporal change of the fill level.
  • the temporal change can be processed as a temporal progression or as a temporal derivative.
  • a testing device for example the one already mentioned, is set up to check whether a change of the liquid is necessary using a time target specification.
  • a hygiene function can be created, which checks whether the change in the level of the liquid in the liquid tank over a period of time determined by the target specification is too small, whereby the operator is informed, for example by issuing a warning signal, before an activated operating process that the liquid may be stale and should be replaced in order to achieve a high standard of hygiene.
  • a time measuring device is set up to assign time measured values to fill level measured values of the sensor arrangement.
  • One advantage here is that a link between a current fill level measured value and a time measured value enables a variety of applications.
  • the time for an activated operating process can be linked to a fill level measured value, which in turn can create the target time specified above and a tolerance range for a change in a fill level over time for an operating process.
  • the amount of liquid available for carrying out a cleaning process is checked and/or displayed.
  • an amount of liquid can be set that is appropriate for the cleaning tablets used in the cleaning process. It is particularly advantageous in this case that it is ensured that the cleaning tablets are completely dissolved and mixed with a sufficient amount of liquid in order to prevent excessive dosing and to achieve a high standard of hygiene.
  • the necessary The amount of liquid is therefore checked before the activated operating process is output and shown, for example, on a mobile display on the drinks preparation machine.
  • the dosage of cleaning tablets required for the current fill level is calculated.
  • the fill level is used to calculate how many cleaning tablets are required for a cleaning process.
  • the senor arrangement has a mobile and/or local data storage device and/or is designed to communicate with it.
  • the various physical properties measured by the sensor arrangement can thus be stored in a data storage device and called up at any time, with the measured values that lead to the output of a warning signal being advantageously stored.
  • the data storage device can advantageously be used and evaluated if a defect occurs in the drinks preparation machine in order to carry out an analysis of the operating state using the stored physical measured values recorded by the sensor arrangement, which allows the cause to be found quickly.
  • a local data storage device can be, for example, an internal hard drive, while a mobile data storage device can be, for example, a USB stick and/or a smartphone.
  • the sensor arrangement is designed to measure the relative orientation of the fill level to at least one sensor of the sensor arrangement.
  • the alignment of the water level can also be determined, with the advantage that this prevents the drinks preparation machine from becoming tilted due to improper positioning of the drinks preparation machine at the installation location. This also ensures that the drinks preparation machine can be used properly and prevents the drinks preparation machine from tipping over.
  • the liquid tank can be provided with a permanent water connection. This is particularly advantageous because the operator is relieved of the burden and does not have to fill the liquid tank manually.
  • a refilling process via the fixed water connection can be regulated and/or controlled by the sensor arrangement.
  • the fill level of the liquid tank is, for example, constantly adjusted to an activated operating process, thus making operation easier for the operator.
  • the sensor arrangement can possibly initiate that liquid should be refilled if a target value assigned to a fill level is not reached.
  • the invention further relates to a method for monitoring a filling level, in particular using one of the above-mentioned beverage preparation machines, wherein a first signal is generated for a filling level, characterized in that a second signal is generated for a second filling level and that a test device is used to A comparison of a liquid quantity required for an activated operating procedure with a liquid quantity in a liquid tank detected by a sensor arrangement is carried out, in particular by means of which a warning signal is issued before the operating procedure is carried out. In this way, a comparison of the signals can be achieved.
  • the method described can be used with particular advantage in coffee machines or fully automatic coffee machines which have a liquid tank which can be filled manually and/or automatically, for example via a permanent water connection.
  • emptying of a liquid tank is detected via a discharge funnel through which a liquid flows.
  • a level can be monitored, for example via the flow rate of the liquid from the discharge funnel.
  • an increase in the flow rate can be determined and an impending emptying of the liquid tank can be detected via a radial reduction in the flow cross-section relating to the diameter of the discharge funnel.
  • the generated level signals are continuously and thus time-independently transmitted via physical properties of the levels such as preferably mass, length, time or electric current are defined and can possibly be compared with each other in a further process step.
  • a continuous measurement enables, for example, a permanent monitoring of a fill level, for example the one already mentioned, and/or the fill level change.
  • a particular advantage is that the continuous measurement process allows different measuring methods to be applied.
  • the first fill level is determined based on the physical property.
  • the advantage here is that, for example, a direct measured value can be assigned to the signal generated.
  • a comparison of the first fill level is carried out with at least one second fill level.
  • the generated signals associated with the fill levels can be directly compared with one another via the physical properties.
  • a first signal generated by a fill level is compared with a second signal generated by a second fill level, whereby the operator can be informed that the fill level required for an activated operating process has been reached and that the liquid tank must be refilled.
  • a comparison of a first signal generated at a first fill level with a second signal generated at a second fill level results in the fill level being automatically adjusted to an activated operating process via a fixed water connection.
  • the comparison can be used to determine whether regular operation of the beverage preparation machine is possible and/or whether complications exist or may arise soon.
  • the at least one physical property is detected by a sensor arrangement with at least two sensors.
  • a warning signal is emitted.
  • the operator can be made aware that the level of liquid in the liquid tank is too low and should be filled up to carry out an operating procedure. Furthermore, the operator can be informed, for example, that the amount of liquid pumped by the pump is not sufficient to carry out an activated operating procedure due to flow resistance in the lines, whereby the warning signal can be output, for example, with a Recommendations for possible troubleshooting options can be linked, e.g. maintenance, descaling, cleaning, filter replacement. In addition, the output of a warning signal can provide information, for example, as to whether the fluid should be changed or whether a certain fill level has been reached.
  • the warning signal can be shown as a visual signal on a display, be designed as an indicator light and/or be an acoustically perceptible noise.
  • the warning signal can also be a control signal which is coupled to an actuator via a driver stage, with this actuator processing the control signal and enabling and/or blocking an operating process.
  • time measurement values are recorded and/or the time measurement values are assigned to measured fill levels.
  • it can be determined, for example, how long no operating process has been carried out and whether a change of liquid is necessary.
  • a particular advantage is that an operating process is only released if it is ensured that the liquid has a high hygiene standard.
  • the measurement of a physical property is carried out at different positions of the
  • the level can therefore be monitored independently of the position of the sensor arrangement.
  • the sensor used to record the physical property can be positioned outside and/or inside the liquid tank.
  • a displacement sensor can be attached above the liquid tank, with a float sensor lying in the liquid being positioned inside the liquid tank.
  • the sensor arrangement when using a displacement sensor, it does not matter whether the sensor arrangement is positioned above and/or below the liquid tank. This means that two spatially separated sensors can also be positioned, for example when using a float sensor in combination with an optical sensor.
  • At least one measured value of the physical property is stored, in particular together with an associated time measured value.
  • the stored measured values can be used, for example, to identify possible causes of defects that occur. analyse, detect and/or predict .
  • Fig. 1 is a two-dimensional sectional view of a liquid tank with drain funnel, fill level, filter unit, optical sensor unit and ultrasonic sensor,
  • Fig. 2 is a two-dimensional sectional view of a liquid tank from Fig. 1 without filter unit
  • Fig. 3 is a two-dimensional sectional view of a liquid tank from Fig. 1 without optical sensor unit
  • Fig. 4 is a two-dimensional sectional view of a liquid tank from Fig. 3 without filter unit
  • Fig. 5 is a two-dimensional sectional view of a liquid tank with discharge funnel, filling level, filter unit and a device for measuring the electrical conductivity and
  • Fig. 6 is a two-dimensional sectional view of a liquid tank from Fig. 5 without filter unit.
  • Fig. 1 shows a liquid tank 1 with drain funnel 2 , Filter unit 3 and a liquid 4 located in the liquid tank 1, whereby a fill level 5 is present in the liquid tank 1.
  • the sensor arrangement 6 consists of a combination of two sensors, one of these sensors being designed as an optical sensor unit 7 and another sensor as an ultrasonic sensor 8.
  • the sensors can be implemented separately from one another.
  • the underlying physical measuring principle enables measurement of a wide range of different fill levels up to a continuous measurement of fill levels, in particular as a function of a time variable.
  • the drain funnel 2 is located at the bottom of the liquid tank 1 so that the liquid 4 can completely flow out of the liquid tank 1 and be emptied.
  • the optical sensor unit 7 comprises a transmitter and receiver unit 9 , which is arranged above and outside the liquid tank 1 , and a reflector 10 , which is arranged below and outside the liquid tank 1 .
  • the transmitter and receiver unit 9 sends a light beam (not shown in this figure) through the liquid 4, which is reflected by the reflector 10 and sent back to the transmitter and receiver unit 9 as a reflected light beam, wherein the fill level 5 of the liquid 4 in the liquid tank 1 is determined via the time period between the transmitted and received light beam.
  • an ultrasonic sensor 8 is positioned outside the liquid tank 1. The ultrasonic sensor 8 emits ultrasonic pulses 11 which are reflected by the liquid 4 in the liquid tank 1, whereby the fill level 5 is in turn determined and monitored over the time period from the transmission to the reception of the ultrasonic pulses 11.
  • a sensor arrangement 6 is realized with which the different filling levels 5 can be compared with each other via the same physical property and whereby the creation of temporal target specifications and tolerance ranges of the change in the filling levels 5 for activated operating processes is possible.
  • the sensor arrangement 6 can therefore also detect via the drain funnel 2 an approaching empty state of the liquid tank 1 over the time period between the sending and receiving of the signals, since the flow rate of the liquid 4 increases as it passes through the drain funnel 2 due to the reduced flow cross-section and deviates from the target specification of the activated operating process.
  • Fig. 2 shows the liquid tank 1 from Fig. 1 with the filter unit 3 missing.
  • the liquid volume which is proportional to the fill level 5 of the liquid 4 in the liquid tank 1, is larger in comparison with an inserted filter unit 3, since the liquid volume is not displaced by the filter unit 3.
  • the fill level 5 drops more slowly with the pump output remaining the same than would be the case with the filter unit 3.
  • Fig. 3 shows the liquid tank 1 from Fig. 1, wherein the ultrasonic sensor 8 is positioned above and outside the liquid tank 1 and wherein the sensor arrangement does not have an optical sensor unit 7.
  • the fill level 5 is determined via the time period between the sending and receiving of the ultrasonic pulses 11 of an ultrasonic sensor 8.
  • Fig. 4 shows the liquid tank 1 and the sensor arrangement 6 from Fig. 3, with the difference that the filter unit 3 is missing, which is why the time period between the transmission and reception of the ultrasonic pulses 11 is different from the time specified for an activated operating process with the filter unit 3 inserted.
  • the sensor arrangement 6 enables the operator to insert the missing filter unit 3 via a warning signal.
  • Fig. 5 shows a liquid tank 1 with a liquid 4, a filter unit 3, a fill level 5, a drain funnel 2 and an electrical circuit 12, the fill level 5 being determined conductively via the electrical conductivity using electrodes which are connected in series at one end via a positive line 13 and at the other end via a negative line 14 to a voltage source 15.
  • the electrodes and the voltage source 15 are arranged spatially separated. Since the liquid 4 is electrically conductive, the resistance of the electrodes changes proportionally to the fill level 5 of the liquid 4 in the liquid tank 1.
  • a further embodiment not shown in this figure for the conductive determination of the fill level 5 via the electrical conductivity involves the use of a conductive float which is in contact with an electrode.
  • an electrical target specification can be Tolerance ranges can be created for different filling levels 5 and changes in the filling levels 5 during operating procedures, whereby the filling levels 5 are defined via the electrical conductivity of the electrode.
  • Fig. 6 shows the sensor arrangement 6 from Fig. 5, with the difference that the filter unit 3 is not installed in the liquid tank 1. Due to the lack of displacement of the liquid volume of the liquid 4 in the liquid tank 1, the change in the fill level 5 during an activated operating process does not correspond to the regular change in the fill level 5. The electrical conductivity therefore does not correspond to the target specification.
  • the sensor arrangement 6 thus detects a missing filter unit 3 and can inform the operator that the filter unit 3 must be inserted in order to enable a regular operating state.
  • the invention therefore proposes, in a beverage preparation machine, to design a sensor arrangement 6 such that a plurality of different filling levels 5 can be distinguished by sensor signals.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'invention concerne une machine de préparation de boisson comportant un réservoir de liquide. Selon l'invention, un ensemble capteur est prévu et permet une mesure de niveau de remplissage continue et/ou discrète afin de faire la distinction entre une pluralité de niveaux de remplissage. L'invention concerne également un procédé de surveillance des niveaux de remplissage.
PCT/EP2024/053077 2023-02-08 2024-02-07 Machine de préparation de boisson avec mesure de niveau WO2024165631A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023103064.7A DE102023103064A1 (de) 2023-02-08 2023-02-08 Getränkezubereitungsmaschine mit Pegelmessung
DE102023103064.7 2023-02-08

Publications (1)

Publication Number Publication Date
WO2024165631A1 true WO2024165631A1 (fr) 2024-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/053077 WO2024165631A1 (fr) 2023-02-08 2024-02-07 Machine de préparation de boisson avec mesure de niveau

Country Status (2)

Country Link
DE (1) DE102023103064A1 (fr)
WO (1) WO2024165631A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1472963A1 (fr) 2003-05-02 2004-11-03 M. Schaerer AG Dispositif pour distribuer du lait et/ou de la mousse de lait
DE102006043906A1 (de) 2006-09-19 2008-03-27 BSH Bosch und Siemens Hausgeräte GmbH Signalisierungseinrichtung für eine verbleibende Tassenzahl
DE102010030362A1 (de) * 2010-06-22 2011-12-22 Endress + Hauser Gmbh + Co. Kg Vorrichtung und Verfahren zur kapazitiven Bestimmung eines Füllstandes einer Flüssigkeit in einem Behälter
US8327753B2 (en) * 2007-06-21 2012-12-11 Breville Pty Limited Reservoir level sensing
EP2702908A1 (fr) 2012-08-30 2014-03-05 Jura Elektroapparate AG Dispositif destiné à préparer un liquide pour un automate de boissons et son utilisation
DE102015203744A1 (de) 2015-03-03 2016-09-08 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit Füllstandserfassung
US9476750B2 (en) * 2011-07-01 2016-10-25 Breville Pty Ltd Method and apparatus for water level sensing
EP3090663A1 (fr) * 2015-05-06 2016-11-09 Qbo Coffee GmbH Machine de préparation de boissons
EP3409153A1 (fr) * 2017-05-30 2018-12-05 BSH Hausgeräte GmbH Appareil à boisson à mesure de niveau de remplissage
DE102018112304A1 (de) 2018-05-23 2019-11-28 Miele & Cie. Kg Verfahren und Vorrichtung zum Anzeigen eines erforderlichen Wasserwechsels eines Wasserbehälters für ein Getränkezubereitungsgerät und Getränkezubereitungsgerät
US20200008609A1 (en) * 2016-12-20 2020-01-09 Koninklijke Douwe Egberts B.V. Drainage connector unit and assembly for the drainage of liquid waste of beverage dispensing devices
US20210330119A1 (en) * 2018-09-07 2021-10-28 Starship Technologies Oü System and method for beverage dispensing

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1472963B1 (fr) * 2003-05-02 2008-12-10 M. Schaerer AG Dispositif pour distribuer du lait et/ou de la mousse de lait
EP1472963A1 (fr) 2003-05-02 2004-11-03 M. Schaerer AG Dispositif pour distribuer du lait et/ou de la mousse de lait
DE102006043906A1 (de) 2006-09-19 2008-03-27 BSH Bosch und Siemens Hausgeräte GmbH Signalisierungseinrichtung für eine verbleibende Tassenzahl
US8327753B2 (en) * 2007-06-21 2012-12-11 Breville Pty Limited Reservoir level sensing
DE102010030362A1 (de) * 2010-06-22 2011-12-22 Endress + Hauser Gmbh + Co. Kg Vorrichtung und Verfahren zur kapazitiven Bestimmung eines Füllstandes einer Flüssigkeit in einem Behälter
US9476750B2 (en) * 2011-07-01 2016-10-25 Breville Pty Ltd Method and apparatus for water level sensing
EP2702908A1 (fr) 2012-08-30 2014-03-05 Jura Elektroapparate AG Dispositif destiné à préparer un liquide pour un automate de boissons et son utilisation
DE102015203744A1 (de) 2015-03-03 2016-09-08 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit Füllstandserfassung
EP3090663A1 (fr) * 2015-05-06 2016-11-09 Qbo Coffee GmbH Machine de préparation de boissons
US20200008609A1 (en) * 2016-12-20 2020-01-09 Koninklijke Douwe Egberts B.V. Drainage connector unit and assembly for the drainage of liquid waste of beverage dispensing devices
EP3409153A1 (fr) * 2017-05-30 2018-12-05 BSH Hausgeräte GmbH Appareil à boisson à mesure de niveau de remplissage
DE102018112304A1 (de) 2018-05-23 2019-11-28 Miele & Cie. Kg Verfahren und Vorrichtung zum Anzeigen eines erforderlichen Wasserwechsels eines Wasserbehälters für ein Getränkezubereitungsgerät und Getränkezubereitungsgerät
US20210330119A1 (en) * 2018-09-07 2021-10-28 Starship Technologies Oü System and method for beverage dispensing

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