Filling apparatus, corresponding use and corresponding set
Patent Information
- Application Number
- EP2023748268
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-08-23
- Filing Date
- 2023-07-26
- Publication Date
- 2025-07-02
AI Technical Summary
Fully automatic coffee machines require frequent refilling of water tanks, and existing solutions often rely on shut-off valves and level sensors, which can be complex and prone to leaks, especially under high operating pressures.
A filling device with a positive displacement feed pump that seals the fluid line when idle, eliminating the need for a separate shut-off valve, and incorporating a pressure-controlled valve and adjustable fluid outlet to ensure secure closure and adaptability to different tank sizes, along with an overflow system for excess fluid management.
Enables automatic, leak-free refilling of coffee machines without the need for regular shut-off valves, ensuring secure closure under high pressures and preventing overfilling, while allowing for easy adaptation to various tank sizes and safe fluid management.
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Figure 1.1
Abstract
Description
[0001] Filling device, corresponding use and corresponding set
[0002] The invention relates to a filling device, comprising a fluid connection which is designed for connection to a fluid line and / or to a fluid supply, and at least one filling state sensor and a feed pump fluidically coupled to the fluid connection, wherein the feed pump can be controlled by the at least one filling state sensor, and comprising a fluid outlet which is fluidically coupled to the feed pump.
[0003] Such filling devices can be used, for example, for coupling to a beverage vending machine, in particular to a coffee machine or a fully automatic coffee machine, in order to supply this coffee machine from a drinking water pipe or another fluid line. This makes it possible to dispense with the regular refilling of a preferably portable 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 shut off the supply as needed, for example when the storage container is full. This can be monitored, for example, with a fill level sensor for the storage container.
[0004] In general, the beverage vending 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 a built-in dosing device for the ground coffee. With fully automatic coffee machines, there is a desire for automatic refilling of a storage container, especially water tanks, especially since these machines already offer a highly automated approach to dispensing other ingredients, such as ground coffee and / or brewed coffee.
[0005] The invention is based on the object of creating an alternative to the previously conventional structures.
[0006] To achieve the stated object, the features of claim 1 are provided according to the invention. In particular, to achieve the stated object, in a filling device of the type described above, the invention proposes that the feed pump be designed as a positive displacement pump. Thus, a separate shut-off valve is unnecessary if the feed pump can seal the fluid line when at a standstill.
[0007] As a drinks vending machine, for example, a vending machine for preparing hot drinks and / or cold drinks and / or a vending machine for preparing coffee-based drinks, for example coffee preparations and / or coffee-milk-based drinks, hot and / or cold, and / or 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.
[0008] Fill level sensors of known type are designed, for example, to detect and / or monitor a filled volume and / or to detect and / or monitor a water level and / or to detect and / or monitor quantities of fluid added and / or removed and can detect and / or monitor the relevant quantity on the storage container.
[0009] Positive displacement pumps can be characterized, for example, by the fact that a medium to be pumped, in this case the fluid, is conveyed through self-contained volumes. This can result in the medium line being automatically closed when the positive displacement pump is switched off.
[0010] The fluid used can be, for example, (drinking) water or another water-containing liquid such as milk.
[0011] In an advantageous embodiment, the feed pump can be designed as a rotating pump, in particular as a gear pump, a vane pump, a peristaltic pump, or a reciprocating piston pump, in particular as a diaphragm pump. Thus, various positive displacement pumps can be used. A peristaltic pump, for example in the form of a squeeze pump, represents a particularly simple variant.
[0012] In an advantageous embodiment, the feed pump can be provided with a barrier pressure at least higher than the pressure in the fluid line. This ensures a secure closure of the fluid line when the pump is stopped, for the possible operating pressures in the fluid line. Depending on the situation and regulatory requirements, for example, in drinking water pipes, this can correspond to an overpressure of 2-15 bar.
[0013] A barrier pressure can, for example, be characterized as the pressure on the inlet side of the feed pump up to which the feed pump remains leak-free when not in operation. At higher pressures, the feed pump may be driven by the pressure, causing the material to be pumped to pass through unintentionally.
[0014] In an advantageous embodiment, the feed pump can be provided with a wet suction height of at least 80 cm. This allows suction from a fluid reservoir located on a tabletop surface (and thus lower than the filling device) when installed as a tabletop device.
[0015] The suction head can be characterized, for example, as a delivery head above which the feed pump cannot suck in the pumped medium. The moist suction head can be characterized, for example, by the fact that any sealing areas are wetted during suction, particularly with the fluid to be pumped, so that leaks are negligible compared to a fluid of lower viscosity, such as air.
[0016] Alternatively or additionally, the features of the first independent claim directed to a filling device are provided according to the invention to achieve the stated object. In particular, to achieve the stated object, in a filling device of the type described above, it is proposed according to the invention that a pressure-controlled valve is arranged fluidically between the water connection and the feed pump. Thus, a
[0017] The switching state of the pressure-controlled valve can be predetermined by operation of the feed pump, for example by a running feed pump at the valve producing a pressure reduction on the output side or, preferably via a fluidic connection with an output side of the feed pump, a pressure increase on the output side, which can lead to an opening of the valve, and / or by a standstill feed pump at the valve producing a closure.
[0018] The pressure-controlled valve preferably has at least one open position and one closed position, which are assumed, for example, depending on the outlet pressure. For example, the pressure-controlled valve can be designed as a non-electrically controlled, in particular mechanically controlled, valve. Thus, electrical supply and / or control lines in the vicinity of the valve are dispensable.
[0019] For example, the pressure-controlled valve can have a pressure limiter, in particular for setting a maximum outlet-side pressure, or a pressure reducer, in particular for reducing an outlet-side pressure relative to an inlet-side pressure. Thus, even higher operating pressures of the barrier pressure can be tolerated.
[0020] In an advantageous embodiment, the pressure-controlled valve can be a pressure-controlled check valve. This allows the use of a particularly simple, readily available valve. A pressure-controlled check valve can be characterized, for example, by having a control input that forces the valve to open above a defined pressure or a defined pressure difference across the valve, regardless of the direction of flow.
[0021] The check valve can be arranged in the blocking direction. This allows for automatic closure when the feed pump stops.
[0022] In an advantageous embodiment, it can be provided that a control line of the pressure-controlled valve is fluidically connected to an output side of the feed pump. This provides a simple means for providing the aforementioned fluidic connection. It can be provided that the control line is branched off on the input side to a flow limiter or flow reducer connected downstream of the feed pump. Thus, during operation of the feed pump, a pressure that keeps the check valve open can be easily maintained in the control line, for example, by adjusting the flow limiter or flow reducer to the feed pump's delivery capacity.
[0023] In an advantageous embodiment, the pressure limiter on the pressure-controlled valve can be set below a maximum blocking pressure of the feed pump. This makes it easy to ensure that the blocking pressure of the feed pump is not exceeded.
[0024] In an advantageous embodiment, the pressure limiter can be designed to be leak-free at least within an operating pressure range, in particular the previously described pressure range for fluid lines. This prevents a gradual pressure buildup even during extended downtimes of the feed pump.
[0025] Alternatively or additionally, to achieve the stated object, the features of the second independent claim directed to a filling device are provided according to the invention. In particular, to achieve the stated object, in a filling device of the type described above, it is proposed according to the invention that the fluid outlet is height-adjustable. Thus, a filling device is provided which is easily adaptable to different coffee machines, in particular to different water tanks or storage containers, for example by positioning the fluid outlet such that it can be positioned above a filling area of the water tank or storage container. For example, a minimum distance of the fluid outlet from a maximum fill level, which can be defined, for example, by an overflow, can thus also be easily adjusted.This can be a reliable means of preventing the fluid supply from being sucked back into a drinking water pipe by the feed pump.
[0026] In this case, it can be provided that the fluid outlet is defined with respect to a coupling means with which the filling device can be attached to a coffee machine, and / or with respect to a support surface and / or with respect to a base body of the filling device. Thus, characteristic dimensions with respect to which a container height of, for example, the aforementioned storage container can be defined can be used for height adjustment.
[0027] In an advantageous embodiment, at least one fill level sensor can be height-adjustable. This makes it easy to set a device-specific maximum fill level or minimum fill level at which refilling is initiated.
[0028] This can be achieved, for example, by coupling the fill level sensor to the fluid outlet. This allows a maximum fill level to be easily and / or fail-safely set 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 reservoir, for example, to prevent backflow.
[0029] For example, the fill level sensor can be configured as a shutdown sensor. Thus, for example, exceeding a maximum fill level can lead to the automatic shutdown of a feed pump, in particular the one already mentioned, and / or the automatic closure of an inlet-side
[0030] shut-off valve.
[0031] In an advantageous embodiment, it can be provided that at least one water level sensor, preferably configured as a switch-on sensor, is arranged in a fixed manner with respect to a coupling means, for example, the one already mentioned, with which the filling device can be attached to a coffee machine. Thus, device-specific adjustment of the switch-on sensor is unnecessary. The switch-on sensor can, for example, be configured to automatically switch on a feed pump, in particular the one already mentioned, and / or to open a shut-off valve, in particular the one already mentioned.
[0032] Alternatively or additionally, the features of the third independent claim directed to a filling device are provided according to the invention to achieve the stated object. In particular, to achieve the stated object, in a filling device of the type described above, the invention proposes that an overflow be formed that can be coupled to a storage container or water tank of a coffee machine. This allows for the drainage of unwanted fluid quantities.
[0033] For example, the overflow can be arranged to define a maximum fill level of the storage container, especially water tanks, independently of level sensors or, for safety reasons, in addition to them. This reliably prevents overfilling of the fluid supply.
[0034] The overflow can be fluidically connected to a water collecting tray of the coffee machine and / or to an existing drainage system. Thus, commonly available methods for draining excess fluid are described.
[0035] Preferably, the coupling is designed without a valve, for example to exclude additional sources of error.
[0036] In an advantageous embodiment, the overflow can be monitored with an overflow sensor. This allows any leakage of excess fluid to be detected.
[0037] This can be used, for example, to automatically shut off the feed pump and / or the water connection. This improves fault tolerance.
[0038] A preferred application of the invention provides for the use of a filling device according to the invention, in particular as described above and / or according to one of the
[0039] Filling device claims for refilling a storage container, in particular a water tank, of a coffee machine, in particular a fully automatic coffee machine.
[0040] For example, the water connection can be connected to a drinking water pipe and / or a drinking water supply. This allows for automatic refilling of drinking water from an unlimited or at least very large supply.
[0041] Alternatively or additionally, an overflow, such as the one already mentioned, can be connected to an existing drainage system and / or a water collecting tray. This allows for easy drainage of excess fluid pumped by the feed pump and / or admitted through a shut-off valve.
[0042] In one embodiment of the use, it can be provided that an opening is made in a storage container, in particular the water tank, of the coffee machine, in which an overflow connection is arranged, and that the overflow connection can be fluidically coupled to the overflow. This provides a simple way of adapting the coffee machine to the filling device.
[0043] Preferably, the coupling is detachable. This allows the reservoir to be removed, for example, for manual refilling and / or cleaning.
[0044] Alternatively or additionally, an application of the invention may 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.
[0045] In this case, it can be provided that the filling device is coupled to the coffee machine, at least in the use position, in such a way that a fluid outlet, for example the one already mentioned, opens into a storage container, in particular a water tank. This makes automatic refilling of the storage container easy to achieve.
[0046] The invention will now be described in more detail using exemplary embodiments, but is not limited to these exemplary embodiments. Further exemplary embodiments arise from combining the features of one or more claims with one another and / or with one or more features of the exemplary embodiment.
[0047] It shows: Fig. 1 a schematic sectional view through a filling device according to the invention on a fluid reservoir,
[0048] Fig. 2 is a schematic sectional view of the filling device from Figure 1 with the fluid outlet extended,
[0049] Fig. 3 is a fluid circuit diagram of a filling device according to the invention,
[0050] Fig. 4 shows a fluid circuit diagram of another filling device, and
[0051] Fig. 5 shows a fluid circuit diagram of a third filling device.
[0052] Figure 1 shows a generally designated 1
[0053] Filling device. The filling device 1 has a fluid connection 2, which is designed for connection to a fluid line (not shown in detail) and / or to a fluid supply (also not shown in detail).
[0054] The filling device 1 has at least one filling state sensor 3, which is designed here as a switch-off sensor, for example, and at least one filling state sensor 4, which is designed here as a switch-on sensor, for example.
[0055] The filling device 1 also has a feed pump 5 which is connected to the fluid connection 2 and can pump fluid from this.
[0056] In the example, fluid connection 2 is a water connection that can be connected to a drinking water pipe, for example.
[0057] The pumped medium is thus drinking water. The feed pump 5 can be controlled by the fill level sensors 3, 4 in such a way that the feed pump 5 can be activated when a maximum fill level 6 monitored by the fill level sensor 3 is exceeded and / or when a minimum fill level 7 monitored by the fill level sensor 4 is undershot. For example, the fill level sensor 3 can cause the feed pump 5 to be switched off, while the fill level sensor 4 can cause the feed pump 5 to be switched on.
[0058] 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.
[0059] The maximum fill level 6 and the minimum fill level 7 thus refer to a content 10 of the storage container 8.
[0060] 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 in Figure 1 to simplify the illustration.
[0061] The feed pump 5 is designed as a positive displacement pump, so that the fluid connection 2 does not need to be provided with an additional shut-off device.
[0062] In the exemplary embodiment, the feed pump 5 is designed as a peristaltic pump, in particular a squeeze pump. However, in further exemplary embodiments, other displacement pumps, in particular rotating pumps such as
[0063] Gear pumps, vane pumps, or reciprocating piston pumps, such as diaphragm pumps, are used. 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.
[0064] During operation, the feed pump 5 pumps fluid, here drinking water, from the fluid connection 2 to the fluid outlet 11. The fill level sensors 3, 4 are each designed as level sensors for detecting and / or monitoring a water level. Alternatively, in further embodiments, the fill level sensors 3, 4 are designed to monitor and / or detect a filled volume, for example, by weight detection.
[0065] In order to achieve the fluidic separation of the fluid connection 2 from the fluid outlet 11, 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.
[0066] In the exemplary embodiment, this blocking pressure is set so that it is above the operating pressure typically present at fluid connection 2. In the example, such an operating pressure for drinking water pipes according to standard specifications is between 2 bar and 15 bar.
[0067] 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 is blocked.
[0068] In a further embodiment, not shown, the feed pump 5 is connected via the fluid connection 2 to a fluid supply, for example a water canister.
[0069] Typically, this fluid supply is placed at a different level than the filling device 1. For this purpose, the feed pump 5 has a pumping capacity which includes a wet suction height of at least 80 cm in order to overcome, for example, a height difference from a table to the surface of the table.
[0070] Figure 3 shows a fluid diagram for the filling device 1 according to Figure 1.
[0071] It can be seen that a fluid section 12 between the fluid connection 2 and the feed pump 5 is designed without a valve.
[0072] Figure 4 shows a variant in which a pressure-controlled valve 13 is arranged in the fluid section 12.
[0073] 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.
[0074] It is thus possible for the pressure-controlled valve 13 to open when the feed pump 5 leads to a pressure reduction on an output side of the pressure-controlled valve 13, and for the pressure-controlled valve 13 to close when the feed pump 5 is stationary and thus a pressure builds up on the output side of the pressure-controlled valve 13.
[0075] This variant is advantageous if, for example, an operating pressure at the fluid connection 2 exceeds a blocking pressure of the feed pump 5.
[0076] The adjustable pressure-controlled valve 13 can be adjusted so that the pressure-controlled valve 13 closes close to the barrier pressure on its outlet side. The pressure-controlled valve 13 can, for example, be designed purely mechanically, i.e., not electrically controlled.
[0077] 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 is blocked.
[0078] In this way, a pressure limiter or at least a pressure reducer can be created.
[0079] Figure 5 shows another possibility of a fluidic connection in a filling device 1.
[0080] Functionally and / or structurally similar or identical components and functional units are designated by the same reference numerals and are not described separately again. The explanations for the preceding embodiments therefore apply to this
[0081] Implementation example accordingly.
[0082] The embodiment according to Figure 5 differs from the preceding embodiments by a further pressure-controlled valve 14 connected upstream of the feed pump 5.
[0083] This pressure-controlled valve 14 is a check valve that is installed in the blocking direction.
[0084] An opening of the pressure-controlled valve 14 can be forced via a control power 15.
[0085] The control line 15 is branched off from an output side of the feed pump 5. This allows a working pressure to build up during feed operation of the feed pump 5, which is fed via the control line 15 to the pressure-controlled valve 14, causing it to open. This ensures that when the feed pump 5 starts up, fluid automatically flows through the fluid connection 2.
[0086] In order to maintain the working pressure in the control line 15, a preferably adjustable flow limiter or flow reducer 17 is connected downstream of the branch 16.
[0087] Preferably, a flow rate through the flow limiter or flow reducer 17 is set so that it is below the delivery capacity 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 is delivering.
[0088] The filling device 1 further has a coupling means 18 with which it can be docked or coupled flatly to the coffee machine 9.
[0089] The fluid outlet 11 is arranged on a support 19 which is arranged so as to be height-adjustable with respect to a base body 20, in particular displaceable in the vertical direction.
[0090] 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.
[0091] It can be seen that the filling level sensors 3, 4 and the corresponding filling level gauges 6, 7 are also shifted.
[0092] In an alternative embodiment, the fill level sensor 4, designed as a switch-on sensor, will remain stationary when the carrier 19 is displaced or vertically adjusted. The base body 20 can be characterized, for example, by the fact that the fluid connection 2 is formed on it.
[0093] In Figure 1 it can also be seen that a recess 21 is incorporated into the storage container 8, through which the fluid outlet 11 passes.
[0094] 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.
[0095] The filling device 1 also has a control device 22 with which the water level sensors 3, 4 and the feed pump 5 and possibly present valves 13, 14 can be controlled.
[0096] An overflow 23 is formed in the base body 20 and is fluidly connected to a drain connection 24.
[0097] This drain connection 24 can be connected, for example, to a water collecting tray of the coffee machine 9 or an existing drainage system, for example a sink and the like or a branch in a siphon.
[0098] An opening 26 is incorporated into the storage container 8, into which an overflow connection 25 is inserted.
[0099] 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.
[0100] This creates an overflow system that safely drains excess fill volume above the maximum fill level. By forming the opening 26 and the recess 21 and by inserting the overflow connection 25, the
[0101] Storage container 8 can be prepared for use with a filling device 1.
[0102] The coffee machine 9 can then be coupled to the filling device 1.
[0103] In the coupled position according to Figure 1, the
[0104] Fluid outlet 11 into the reservoir 8 and the
[0105] Fill level sensors 3, 4 monitor fill level 6, 7 of the contents 10 in the storage container 8.
[0106] In a filling device 1 for an automatic
[0107] Refilling a storage container 8 of a coffee machine 9, it is proposed to use a feed pump 5, which
[0108] Reservoir 8 from a fluid connection 2 via a
[0109] Fluid outlet 11 filled, designed as a positive displacement pump.
[0110] / List of reference symbols
[0111] List of reference symbols
[0112] 1 filling device
[0113] 2 fluid connection
[0114] 3 Fill level sensor
[0115] 4 Fill level sensor
[0116] 5 Feed pump
[0117] 6 maximum fill level
[0118] 7 minimum fill level
[0119] 8 storage containers
[0120] 9 coffee machine
[0121] 10 Contents
[0122] 11 Fluid outlet
[0123] 12 Fluid section
[0124] 13 pressure-controlled valve, pressure limiter
[0125] 14 pressure-controlled valve, check valve
[0126] 15 Control line
[0127] 16 Junction
[0128] 17 Flow limiter or flow reducer
[0129] 18 couplants
[0130] 19 carriers
[0131] 20 basic bodies
[0132] 21 Recess
[0133] 22 Control device
[0134] 23 Overflow
[0135] 24 Expiration at the end
[0136] 25 Overflow connection
[0137] 26 Breakthrough
[0138] 27 Vending machine
[0139] / Claims
Claims
Claims Filling device (1), in particular for coupling to a drinks vending machine (27), with a fluid connection (2) which is designed for connection to a fluid line and / or to a fluid supply, and at least one fill level sensor (3, 4) and a feed pump (5) fluidically coupled to the fluid connection (2), wherein the feed pump (5) can be controlled by the at least one fill level sensor (3, 4), and with a fluid outlet (11) which is fluidically coupled to the feed pump (5), characterized in that the feed pump (5) is designed as a positive displacement pump. Filling device (1) according to the preceding claim, characterized in that the feed pump (5) 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 diaphragm pump.Filling device (1) according to one of the preceding claims, characterized in that the feed pump (5) has a barrier pressure at least higher than the pressure in the fluid line. Filling device (1) according to one of the preceding claims, characterized in that the feed pump (5) has a moist suction height of at least 80 cm. Filling device (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that a pressure-controlled valve (13), preferably non-electrically, is fluidically connected between a water connection and the feed pump (5). controlled valve and / or a pressure limiter is arranged. Filling device (1) according to one of the preceding claims, characterized in that the pressure-controlled valve (14) is a pressure-controlled check valve, in particular wherein the check valve is arranged in the blocking direction, and / or that a control line (15) of the pressure-controlled valve (14) is fluidically connected to an output side of the feed pump (5), in particular on the input side to a flow limiter or flow reducer (17) connected downstream of the feed pump (5). Filling device (1) according to one of the preceding claims, characterized in that the pressure limiter is set below a maximum blocking pressure of the feed pump (5). Filling device (1) according to one of the preceding claims, characterized in that the pressure limiter is designed to be leak-free at least within an operating pressure range.Filling device (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the fluid outlet (11), in particular with respect to a coupling means (18) with which the filling device (1) can be fastened to a drinks machine (27), in particular to a coffee machine (9) or a fully automatic coffee machine, and / or with respect to a mounting surface and / or with respect to a base body (20) of the filling device (1), is height-adjustable. Filling device (1) according to one of the preceding claims, characterized in that at least one, preferably as a switch-off sensor, the filling state sensor (3, 4) is height-adjustable, in particular is coupled to the fluid outlet (11).
11. Filling device (1) according to one of the preceding claims, characterized in that at least one level sensor (6, 7), preferably designed as a switch-on sensor, is arranged in a fixed manner with respect to the coupling means (18) with which the filling device (1) can be fastened to a beverage vending machine (27).
12. Filling device (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that an overflow (23) is formed which can be coupled to a storage container (8), in particular a water tank, of a drinks machine (27), in particular a coffee machine (9) or a fully automatic coffee machine, in particular in order to define at least a maximum filling level (6) of the storage container (8), in particular wherein the overflow (23) can be fluidically coupled to a water collecting tray of the drinks machine (27) and / or to an existing drainage system, in particular without a valve.
13. Filling device (1) according to one of the preceding claims, characterized in that the overflow (23) can be monitored with an overflow sensor, in particular for automatically switching off the feed pump (5) and / or the water connection.
14. Use of a filling device (1) according to one of the preceding claims for refilling a fluid supply, in particular a water tank of a drinks machine (27), in particular a coffee machine (9) or a Fully automatic coffee machines, in particular wherein the water connection is connected to a drinking water pipe and / or a drinking water supply and / or wherein the or an overflow (23) is connected to an existing drainage system and / or a water collecting tray.
15. Use according to claim 14, characterized in that in one or the storage container (8), in particular water tank, of the drinks machine an opening (26) is introduced, in which an overflow connection (25) is arranged, and that the overflow connection (25) can be fluidically coupled to the overflow (23), in particular detachably.
16. Set, comprising a drinks machine (27), in particular a coffee machine (9) or a fully automatic coffee machine, and a filling device (1) according to one of the preceding claims, in particular wherein the filling device (1) is coupled to the drinks machine (27) at least in the position of use in such a way that the or a fluid outlet (11) opens into a storage container (8), in particular a water tank. / Summary