WO2024041832A1 - Appareil de remplissage, utilisation correspondante et ensemble correspondant - Google Patents

Appareil de remplissage, utilisation correspondante et ensemble correspondant Download PDF

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Publication number
WO2024041832A1
WO2024041832A1 PCT/EP2023/070761 EP2023070761W WO2024041832A1 WO 2024041832 A1 WO2024041832 A1 WO 2024041832A1 EP 2023070761 W EP2023070761 W EP 2023070761W WO 2024041832 A1 WO2024041832 A1 WO 2024041832A1
Authority
WO
WIPO (PCT)
Prior art keywords
filling device
pressure
feed pump
fluid
pump
Prior art date
Application number
PCT/EP2023/070761
Other languages
German (de)
English (en)
Inventor
Christoph Grob
Samuel Baltensperger
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 WO2024041832A1 publication Critical patent/WO2024041832A1/fr

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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
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A47J31/469—Details of hydraulic circuits
    • 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
    • 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
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A47J31/468—Pumping means

Definitions

  • the invention relates to a filling device, with a fluid connection which is set up for connection to a fluid line and/or to a fluid supply, and at least one filling state sensor and a feed pump fluidly coupled to the fluid connection, the feed pump being controllable by the at least one filling state sensor, and with a fluid outlet that is fluidly coupled to the feed pump.
  • Such filling devices can be used, for example, for coupling to a beverage machine, in particular to a coffee machine or a fully automatic coffee machine, in order to supply this coffee machine from a drinking water line or another fluid line. It is therefore possible to dispense with regular refilling of a preferably transportable storage container, for example a water tank. It has been proposed, for example in EP 3 166 458 B1, to provide a connection to the fluid line with a shut-off valve in order to be able to switch off the supply if necessary, for example when the storage container is full. This can be monitored, for example, with a filling level sensor for the storage container.
  • the drinks machine described here can be designed as a coffee machine or fully automatic coffee machine, i.e. in particular with a built-in grinder and/or with a built-in dosing device for the ground material.
  • fully automatic coffee machines there is a desire for automatic refilling of a storage container, especially water tanks, especially since these machines Provision of other ingredients, for example the ground and/or brewed material, can already be carried out in a highly automated manner.
  • the invention is based on the object of creating an alternative to the previously usual structures.
  • the features of claim 1 are provided according to the invention.
  • the feed pump is designed as a positive displacement pump. A separate shut-off valve is therefore unnecessary if the feed pump can seal the fluid line when it is at a standstill.
  • the beverage vending machine is/are, for example, a machine for preparing hot drinks and/or cold drinks and/or a machine for preparing coffee-based drinks, for example coffee preparations and/or coffee-milk-based drinks, hot and/or cold, and/or of coffee-free drinks, for example black tea-based and/or herbal tea-based and/or fruit tea-based drinks, hot and/or cold, and/or synthetic-based drinks, hot and/or cold, can be used with advantage.
  • Filling state sensors of a known type are set up, for example, for detecting and/or monitoring a filled volume and/or for detecting and/or monitoring a water level and/or for detecting and/or monitoring quantities of fluid supplied and/or removed and can determine the relevant size on the storage container record and/or monitor.
  • Positive displacement pumps for example, can be characterized in this way that a medium to be conveyed, here the fluid, is conveyed through self-contained volumes. This can result in a self-acting closure of the medium line when the positive displacement pump is switched off.
  • (drinking) water or another water-containing liquid such as milk can be used as a fluid.
  • the feed pump is designed as a rotating pump, in particular as a gear pump or as a vane pump or as a peristaltic pump, or as a reciprocating piston pump, in particular as a membrane pump.
  • a rotating pump in particular as a gear pump or as a vane pump or as a peristaltic pump, or as a reciprocating piston pump, in particular as a membrane pump.
  • a peristaltic pump for example in the form of a squeeze pump, represents a particularly simple variant in terms of construction.
  • the feed pump has at least a higher blocking pressure than the pressure in the fluid line. This means that a secure closure of the fluid line can be achieved when the pump is at a standstill for the possible operating pressures in the fluid line. Depending on the situation and normative requirements, for example in the case of drinking water pipes, this can correspond to an overpressure of 2-15 bar.
  • a blocking pressure can, for example, be characterized as the pressure on an inlet side of the feed pump up to which the feed pump remains leak-free when at a standstill. At higher pressures, it can happen that the feed pump is driven by the pressure and the conveyed material penetrates unintentionally.
  • the feed pump has a wet suction height of at least has 80cm. This means that suction can be achieved when set up as a table-top device from a fluid supply that is located on the surface of the table (and therefore lower than the filling device).
  • the suction height can, for example, be characterized as a delivery height above which the delivery pump cannot cause the delivery medium to be sucked in.
  • the moist suction height can be characterized, for example, by the fact that any sealing areas are wetted during suction, in particular with the fluid to be pumped, so that leaks compared to a fluid of lower viscosity such as air are negligible.
  • the features of the first independent claim directed to a filling device are provided according to the invention to solve the stated problem.
  • a pressure-controlled valve is arranged fluidly between the water connection and the feed pump.
  • Switching state of the pressure-controlled valve can be predetermined by operation of the feed pump, for example by a running feed pump on the valve generating a pressure reduction on the outlet side or, preferably via a fluidic connection to an outlet side of the feed pump, an increase in pressure on the outlet side, which can lead to an opening of the valve, and /or, for example, by a stationary feed pump at the valve leading to a closure.
  • the pressure-controlled valve preferably has at least one open position and one closed position, which are assumed, for example, depending on the pressure on the outlet side.
  • the pressure-controlled valve can be designed as a non-electrically controlled, in particular mechanically controlled, valve. Electrical supply and/or control lines in the vicinity of the valve are therefore unnecessary.
  • the pressure-controlled valve can have a pressure limiter, in particular for setting a maximum pressure on the outlet side, or a pressure reducer, in particular for reducing an outlet-side pressure relative to an inlet-side pressure. This means that even higher operating pressures of the blocking pressure can be tolerated.
  • the pressure-controlled valve is a pressure-controlled check valve.
  • a pressure-controlled check valve can, for example, be characterized in that a control input is formed which forces the valve to open above a defined pressure or a defined pressure difference across the valve, regardless of the direction of flow.
  • the check valve is arranged in the blocking direction. This makes it easy to close automatically when the feed pump comes to a standstill.
  • a control line of the pressure-controlled valve is fluidly connected to an output side of the feed pump.
  • a simple means of providing the fluidic connection already mentioned can thus be provided.
  • the control line is branched off on the input side to a flow limiter or flow reducer connected downstream of the feed pump.
  • the pressure limiter on the pressure-controlled valve is set below a maximum blocking pressure of the feed pump. This makes it easy to ensure that a blocking pressure of the feed pump is not exceeded.
  • the pressure limiter is designed to be leak-free at least within an operating pressure range, in particular the previously described pressure range for fluid lines. This means that a gradual build-up of pressure can be avoided, even if the feed pump is not in use for long periods of time.
  • the features of the second independent claim directed to a filling device are provided according to the invention to solve the stated problem.
  • the fluid outlet is variable in height.
  • a filling device is thus provided that can be easily adapted to different coffee machines, in particular to different water tanks or storage containers, for example by placing the fluid outlet in such a way that it can be positioned above a filling area of the water tank or storage container.
  • a minimum distance of the fluid outlet from a maximum fill level which can be defined, for example, by an overflow, can also be easily adjusted. This can be a safe means of preventing the fluid supply from being sucked back into a drinking water pipe by the feed pump.
  • the fluid outlet is defined in relation to a coupling means with which the filling device can be attached to a coffee machine, and/or in relation to a footprint and/or in relation to a base body of the filling device.
  • Characteristic variables, in relation to which a container height of a storage container, for example the aforementioned storage container, can be defined, can therefore be used for height adjustment.
  • At least one filling level sensor is height-adjustable. This makes it easy to set a device-specific maximum fill level or a minimum fill level from which refilling is carried out.
  • a maximum fill level can therefore be easily and/or fail-safely adjusted to a position of the fluid outlet. This also enables a simple and/or fail-safe setting of a free path between the fluid outlet and the fill level of the storage container, for example to avoid sucking back.
  • the filling level sensor can be set up as a switch-off sensor.
  • exceeding a maximum fill level can automatically switch off a feed pump, in particular the one already mentioned and/or for automatically closing an input side
  • At least one level sensor preferably set up as a switch-on sensor, is arranged invariably with respect to a coupling means, for example the already mentioned, with which the filling device can be attached to a coffee machine.
  • a coupling means for example the already mentioned, with which the filling device can be attached to a coffee machine.
  • the switch-on sensor can, for example, be set up to automatically switch on a feed pump, in particular the one already mentioned, and/or to open a switch-off valve, in particular the one already mentioned.
  • the features of the third independent claim directed to a filling device are provided according to the invention to solve the stated problem.
  • an overflow is formed which can be coupled to a storage container or water tank of a coffee machine. This means that undesirable amounts of fluid can be removed.
  • the overflow can be arranged to define a maximum fill level of the storage container, in particular water tanks, independently of level sensors or, for safety reasons, in addition to these. This means that overfilling of the fluid supply can be safely ruled out.
  • the overflow can be fluidly coupled to a water collecting tray of the coffee machine and/or to an existing drain system.
  • a water collecting tray of the coffee machine and/or to an existing drain system.
  • the coupling is preferably designed to be valve-free, for example in order to exclude additional sources of error.
  • the overflow can be monitored with an overflow sensor. This means that excess fluid can be seen escaping.
  • This can be used, for example, to automatically switch off the feed pump and/or the water connection. This means error safety can be improved.
  • a preferred application of the invention sees the use of a filling device according to the invention, in particular as described above and/or according to one of the following
  • Filling device claims for refilling a storage container, in particular water tanks, a coffee machine, in particular a fully automatic coffee machine.
  • the water connection is connected to a drinking water pipe and/or a drinking water supply. This enables automatic refilling of drinking water from an unlimited or at least very large supply.
  • an overflow for example the one already mentioned, is connected to an existing drainage system and/or a water collecting tray. This enables easy removal of excess fluid that was conveyed by the feed pump and/or admitted through a shut-off valve.
  • a breakthrough is introduced into the coffee machine, in which an overflow connection is arranged, and that the overflow connection can be fluidly coupled to the overflow. This makes it easy to adapt the coffee machine to the filling device.
  • the coupling is preferably detachable.
  • the storage container can therefore still be removed, for example for manual refilling and/or cleaning.
  • an application of the invention can consist in the formation of a set comprising a coffee machine, in particular a fully automatic coffee machine, and a filling device according to the invention, in particular as described above and/or according to one of the claims directed to a filling device.
  • the filling device is coupled to the coffee machine, at least in the position of use, in such a way that a fluid outlet, for example the one already mentioned, opens into a storage container, for example the one already mentioned, in particular a water tank. This makes it easy to automatically refill the storage container.
  • FIG. 2 shows a schematic sectional view of the filling device from FIG. 1 with the fluid outlet extended
  • FIG. 3 shows a fluid circuit diagram of a filling device according to the invention
  • FIG. 5 shows a fluid circuit diagram of a third filling device.
  • Figure 1 shows one designated as a whole by 1
  • the filling device 1 has a fluid connection 2, which is set up for connection to a fluid line, not shown, and/or to a fluid supply, also not shown.
  • the filling device 1 has at least one filling status sensor 3, which is designed here as a switch-off sensor, for example, and at least one filling status sensor 4, which is designed here as a switch-on sensor, for example.
  • the filling device 1 also has a feed pump 5, which is connected to the fluid connection 2 and can deliver fluid from it.
  • the fluid connection 2 is a water connection that can be connected to a drinking water pipe, for example.
  • the medium being pumped is therefore drinking water.
  • the feed pump 5 can be controlled by the filling state sensors 3, 4 in such a way that the feed pump 5 can be controlled when a maximum fill level 6 monitored by the fill state sensor 3 is exceeded and/or when the fill level falls below a minimum fill level 7 monitored by the fill state sensor 4.
  • the filling state sensor 3 can cause the feed pump 5 to be switched off, while the filling state sensor 4 can cause the feed pump 5 to be switched on.
  • Figure 1 shows the filling device 1 in an operating position in which it is coupled to a storage container 8 of a coffee machine 9, which is only indicated.
  • the maximum fill level 6 or the minimum fill level 7 thus relate to a content 10 of the storage container 8.
  • the coffee machine 9 is designed in a manner known per se as a fully automatic coffee machine with a bean supply, grinder, brewing device, control unit and other components, which are omitted to simplify the illustration in Figure 1.
  • the feed pump 5 is designed as a positive displacement pump, so that the fluid connection 2 does not have to be provided with an additional shutdown.
  • the feed pump 5 is designed as a peristaltic pump, in particular a squeeze pump.
  • other positive displacement pumps in particular rotating pumps such as
  • the feed pump 5 ensures that a water outlet 11 is fluidly separated from the fluid connection 2 when the feed pump 5 is at a standstill.
  • the feed pump 5 delivers fluid, here drinking water, from the fluid connection 2 to the fluid outlet 11.
  • the filling state sensors 3, 4 are each designed as level sensors for detecting and/or monitoring a water level.
  • the filling state sensors 3, 4 are designed to monitor and/or detect a filled volume, for example by detecting weight.
  • the feed pump 5 has a blocking pressure up to which fluid cannot be displaced by the feed pump 5 when the feed pump 5 is at a standstill.
  • this barrier pressure is set so that it is above an operating pressure typically present at the fluid connection 2.
  • an operating pressure typically present at the fluid connection 2 is between 2 bar and 15 bar according to standard specifications.
  • the pressure-controlled valve 13 which is designed as a pressure limiter, is designed to be leak-free, so that the pressure limitation can remain stable over a very long period of time, even if the feed pump 5 blocks.
  • the feed pump 5 is connected via the fluid connection 2 to a fluid supply, for example a water canister.
  • this fluid supply is placed at a different level than the filling device 1.
  • the feed pump 5 has a pumping capacity that includes a moist suction height of at least 80 cm, for example to overcome a difference in height from a table to the footprint of the table.
  • Figure 3 shows a fluid diagram for the filling device 1 according to Figure 1.
  • a fluid section 12 between the fluid connection 2 and the feed pump 5 is designed to be valve-free.
  • Figure 4 shows a variant in which a pressure-controlled valve 13 is arranged in the fluid section 12.
  • This pressure-controlled valve 13 is controlled in such a way that it opens when an outlet pressure drops and closes when this pressure rises above a defined threshold value.
  • the pressure-controlled valve 13 opens when the feed pump 5 leads to a pressure reduction on an output side of the pressure-controlled valve 13, and that the pressure-controlled valve 13 closes when the feed pump 5 is at a standstill and is thus on the output side of the pressure-controlled valve 13 a pressure builds up.
  • This variant is advantageous if, for example, an operating pressure at the fluid connection 2 exceeds a blocking pressure of the feed pump 5.
  • the adjustable pressure-controlled valve 13 can be adjusted so that the pressure-controlled valve 13 closes close to the blocking pressure on its outlet side.
  • the pressure-controlled valve 13 can, for example, be designed purely mechanically, i.e. not electrically controlled.
  • the pressure-controlled valve 13 which is designed as a pressure limiter, is designed to be leak-free, so that the pressure limitation can remain stable over a very long period of time, even if the feed pump 5 blocks.
  • Figure 5 shows another possibility of a fluidic connection in a filling device 1.
  • the exemplary embodiment according to FIG. 5 differs from the previous exemplary embodiments in that there is a further pressure-controlled valve 14 connected upstream of the feed pump 5.
  • This pressure-controlled valve 14 is a check valve that is inserted in the blocking direction.
  • An opening of the pressure-controlled valve 14 can be forced via a control power 15.
  • the control line 15 is branched off from an output side of the feed pump 5.
  • a working pressure can be built up, which is supplied to the pressure-controlled valve 14 via the control line 15 to open it. This ensures that when the feed pump 5 starts, fluid flows automatically via the fluid connection 2.
  • the branch 16 is followed by a preferably adjustable flow limiter or flow reducer 17.
  • a flow rate is set by the flow limiter or flow reducer 17 so that it is below the delivery rate of the feed pump 5, so that sufficient pressure can be built up in the control line 15 to keep the pressure-controlled valve 14 open as long as the feed pump 5 delivers.
  • the filling device 1 also has a coupling means 18 with which it can be docked or coupled to the coffee machine 9 in a flat manner.
  • the fluid outlet 11 is arranged on a carrier 19, which is arranged to be variable in height with respect to a base body 20, in particular displaceable in the vertical direction.
  • Figure 2 shows a position of the carrier 19 relative to the base body 20, in which the fluid outlet 11 is adapted to a higher storage container 8.
  • the filling state sensor 4 designed as a switch-on sensor will remain stationary when the carrier 19 is moved or adjusted vertically.
  • the base body 20 can, for example, be characterized in that the fluid connection 2 is formed on it.
  • the height adjustability of the fluid outlet 11 makes it possible to adapt the filling device 1 to storage containers 8 in which this recess 21 is at a different height.
  • the filling device 1 also has a control device 22 with which the level sensors 3, 4 and the feed pump 5 and any valves 13, 14 that may be present can be controlled.
  • An overflow 23 is formed in the base body 20 and is fluidly connected to a drain connection 24.
  • This drain connection 24 can be connected, for example, to a water collecting tray of the coffee machine 9 or an existing drain system, for example a sink and the like, or a branch in a siphon.
  • a breakthrough 26 is incorporated into the storage container 8, into which an overflow connection 25 is inserted.
  • This overflow connection 25 is tightly connected to the storage container 8 and can be coupled to the overflow 23 when the storage container 8 is inserted.
  • Storage container 8 can be prepared for the use of a filling device 1.
  • the coffee machine 9 can then be coupled to the filling device 1.
  • Filling level sensors 3, 4 monitor fill level 6, 7 of the contents 10 in the storage container 8.
  • Storage container 8 from a fluid connection 2 via a
  • Fluid outlet 11 filled, designed as a positive displacement pump.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

L'invention concerne un dispositif de remplissage (1) pour le remplissage automatique d'un récipient de stockage (8) d'un distributeur de boissons (27). Selon l'invention, une pompe d'alimentation (5) qui remplit le récipient de stockage (8) d'une liaison fluidique (2) par l'intermédiaire d'une sortie de fluide (11) est réalisée sous la forme d'une pompe volumétrique.
PCT/EP2023/070761 2022-08-23 2023-07-26 Appareil de remplissage, utilisation correspondante et ensemble correspondant WO2024041832A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022121340.4 2022-08-23
DE102022121340.4A DE102022121340A1 (de) 2022-08-23 2022-08-23 Befüllvorrichtung, korrespondierende Verwendung und korrespondierendes Set

Publications (1)

Publication Number Publication Date
WO2024041832A1 true WO2024041832A1 (fr) 2024-02-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/070761 WO2024041832A1 (fr) 2022-08-23 2023-07-26 Appareil de remplissage, utilisation correspondante et ensemble correspondant

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DE (1) DE102022121340A1 (fr)
WO (1) WO2024041832A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016057568A1 (fr) * 2014-10-06 2016-04-14 Remington Designs, Llc Systèmes de brassage de boisson et leurs procédés d'utilisation
CN207114467U (zh) * 2017-07-24 2018-03-16 广州检验检测认证集团有限公司 实验室半自动手持加液装置
WO2021055581A1 (fr) * 2019-09-20 2021-03-25 Keurig Green Mountain, Inc. Procédé et appareil pour une boisson glacée
EP3166458B1 (fr) 2014-07-09 2021-05-05 Société des Produits Nestlé S.A. Couplage d'un dispositif de raccordement d'une machine à boisson à un réseau de distribution

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013212163B4 (de) 2013-06-26 2023-05-04 Benninghoven Zweigniederlassung Der Wirtgen Mineral Technologies Gmbh Vorrichtung zur Lagerung von zähflüssigen Medien
DE102018222824A1 (de) 2018-12-21 2020-06-25 BSH Hausgeräte GmbH Wassertankeinrichtung und Getränkeautomat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3166458B1 (fr) 2014-07-09 2021-05-05 Société des Produits Nestlé S.A. Couplage d'un dispositif de raccordement d'une machine à boisson à un réseau de distribution
WO2016057568A1 (fr) * 2014-10-06 2016-04-14 Remington Designs, Llc Systèmes de brassage de boisson et leurs procédés d'utilisation
CN207114467U (zh) * 2017-07-24 2018-03-16 广州检验检测认证集团有限公司 实验室半自动手持加液装置
WO2021055581A1 (fr) * 2019-09-20 2021-03-25 Keurig Green Mountain, Inc. Procédé et appareil pour une boisson glacée

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