Beverage dispensing module, preparation apparatus comprising such a dispensing module, and method for dispensing a beverage

Abstract

The invention relates to a beverage distribution module (15) for an apparatus (1) for preparing the beverage from a mixture of a powdered food product and an aqueous liquid, the module comprising a mixing chamber (17), of central axis (A), comprising an opening (20) through which the powdered food product is introduced and an outlet orifice (22) through which the mixture is distributed, the outlet orifice (22) being disposed opposite the opening (20) along the central axis (A). According to the invention, the distribution module (15) comprises a mixing element (36) equipped with a drive element configured to be driven in rotation, and mixing elements (37) extending inside the mixing chamber (17) and connected to the drive element to mix the mixture and retain the mixture within the mixing chamber (17) during the rotation of the mixing element (36). Figure 11 for the abstract

Description

Title of the invention: BEVERAGE DISPENSING MODULE, PREPARATION APPARATUS COMPRISING SUCH A DISPENSING MODULE AND METHOD FOR DISTRIBUTING A BEVERAGE Scope of the invention

[0001] The present invention relates to the field of beverage preparation, particularly for infant nutrition, using a powdered food product and an aqueous liquid. The invention specifically relates to a nutritional beverage dispensing module, an apparatus comprising such a beverage dispensing module, and a method for dispensing the beverage. Technical background

[0002] Various apparatuses or devices exist for preparing and dispensing a beverage such as reconstituted milk from milk powder for use in a baby bottle. These devices generally comprise a mixing chamber into which milk powder and water are added to dilute the milk powder and obtain a mixture forming the reconstituted milk. This milk is dispensed through an outlet in the mixing chamber and flows into the baby bottle.

[0003] However, the dispensed reconstituted milk may contain lumps that can obstruct the flow of milk through a teat and hinder milk absorption. These lumps can occur due to the presence of moisture in the milk powder stored in a storage tank, an unsuitable water temperature, and / or a certain particle size or granular rheology of the milk powder that results in poor dissolution of the milk powder in water. In most cases, one solution is to shake the bottle to homogenize the mixture of milk powder and water. Another solution is to mix the milk in the bottle with a mechanical mixer before closing the bottle with a teat, for example. Yet another solution is to place the bottle on another device that rotates a magnet located at the bottom of the bottle.

[0004] However, all these solutions can lead to additional handling and a loss of valuable time when feeding a child, especially a young child.

[0005] There is therefore a need to overcome all or part of the aforementioned disadvantages. Summary of the invention

[0006] The object of the present invention is to provide a simple, reliable and economical solution for eliminating lumps when preparing a drink, in particular for children.

[0007] We achieve this objective in accordance with the invention by means of a beverage distribution module for a beverage preparation apparatus from a mixture of a powdered food product and an aqueous liquid, the module comprising a centrally axisd mixing chamber, including an opening through which the powdered food product is introduced and an outlet through which the mixture is distributed, the outlet being disposed opposite the opening along the central axis, the distribution module comprising a stirring member equipped with a drive element configured to be driven in rotation and stirring elements extending inside the mixing chamber and connected to the drive element to stir the mixture and retain the mixture in the mixing chamber during the rotation of the stirring member.

[0008] Thus, this solution makes it possible to achieve the aforementioned objective. In particular, the mixing element integrated into the mixing chamber, into which the powdered food product and the aqueous liquid are introduced to be mixed and to prepare the beverage, makes it possible to obtain a homogenized beverage, free of lumps and ready to be consumed by a child, for example. The integration of the mixing element into the mixing chamber also saves time during the preparation of the beverage because it is not necessary to implement another external device to homogenize the beverage. Furthermore, the mixing element is simple to implement and economical.

[0009] The distribution module comprises the following features, taken alone or in combination:

[0010] - the mixing element comprises a ring centered on an axis of revolution of the mixing organ and equipped with teeth projecting radially outwards relative to the axis of revolution, the teeth meshing with a toothed wheel connected to an electric motor of the device.

[0011] - the mixing organ comprises several rods, each of which is connected on the one hand to the crown at one end, and on the other hand each connected to a base, at a second end, the base being in the form of a disc arranged opposite the outlet of the mixing chamber and at a distance from it so that the mixture flows through the outlet when the mixing element is stationary in rotation.

[0012] - the mixing element includes an element for obstructing the outlet orifice during of its rotation within the mixing chamber.

[0013] - the base forms the obstruction element during the rotation of the mixing organ.

[0014] - the mixing chamber comprises a side wall centered on the axis of revolution and an inlet orifice for the volume of aqueous liquid formed in the side wall.

[0015] - the mixing chamber includes a surface for guiding the aqueous liquid at the outlet of the inlet orifice which is supported by at least part of an internal surface of the side wall around the axis of revolution.

[0016] — the mixing organ comprises several rods, each connected on the one hand to the crown at one end, and on the other hand connected to each other at a second end, at the level of the axis of revolution.

[0017] — the mixing element comprises a base connecting the second end of each stem and in the form of a disc positioned opposite the outlet of the mixing chamber and at a distance from it so that the beverage flows through the outlet when the mixing element is stationary in rotation, the base forming the obstruction element during the rotation of the mixing element.

[0018] The invention also relates to an apparatus for preparing a beverage based on a food product, the apparatus comprising a frame receiving the beverage distribution module as above, and an electric motor capable of rotating the stirring element via the ring, the electric motor comprising an output shaft on which is mounted the toothed wheel meshing with the ring of the stirring element.

[0019] The device comprises the following features taken alone or in combination:

[0020] - the device comprises elastic prestressing means intended to maintain teeth of the gear engaged with the teeth of the crown.

[0021] - the device includes a movable support which is pivotally mounted relative to the frame around a pivot axis and on which the electric motor is mounted, the elastic prestressing means being mounted around the pivot axis.

[0022] — the device includes a storage tank for the aqueous liquid.

[0023] — the device includes a storage tank for the powdered food product.

[0024] — the apparatus includes a device for heating the aqueous liquid.

[0025] — the device includes an aqueous liquid supply circuit connected to the orifice inlet and to the liquid storage tank.

[0026] The invention further relates to a method of dispensing a beverage from a powdered food product and an aqueous liquid, and by means of a dispensing module as mentioned above, the method comprising the following steps of: -introducing a powdered food product through the opening of the mixing chamber, - introduction of the volume of aqueous liquid into the mixing chamber, - mixing of the mixture comprising the food product and the aqueous liquid using the mixing device, - retention of the mixture within the mixing chamber during the rotation of the mixing element, immobilization of the mixing element, and - distribution of the mixture through the outlet of the mixing chamber at the end of the immobilization step.

[0027] The process comprises the following features and / or steps taken alone or in combination:

[0028] - - a step of supplying a food product prior to the step of introducing the food product into the mixing chamber.

[0029] - - a weighing step of a predetermined mass of the product prior to the step of introducing the food product into the mixing chamber.

[0030] — the food product includes milk powder.

[0031] — the aqueous liquid is introduced into the mixing chamber via an inlet orifice which is separate from the opening allowing the introduction of the food product.

[0032] - - the inlet orifice is formed in the side wall of the mixing chamber.

[0033] — the aqueous liquid includes water. Brief description of the figures

[0034] The invention will be better understood, and other objects, details, features and advantages thereof will become more apparent upon reading the following detailed explanatory description, of embodiments of the invention given by way of purely illustrative and non-limiting examples, with reference to the accompanying schematic drawings in which:

[0035] Fig. 1 is a perspective view of an apparatus for preparing a nutritional or food drink, in particular for children, according to the invention;

[0036] Fig. 2 is an exploded perspective view of an example of a beverage dispensing module intended to equip an apparatus according to Fig. 1;

[0037] Figure 3 illustrates in perspective an example of a mixing chamber of a distribution module according to the invention;

[0038] Fig. 4 is a cross-sectional view, along a longitudinal axis, and in perspective of an example of a beverage distribution module according to the invention;

[0039] Fig. 5 is a detailed view of a portion of the mixing unit installed in the distribution module according to Fig. 4;

[0040] Figure 6 illustrates in perspective an example of a mixing device according to the invention;

[0041] Fig. 7 is a perspective and top view of the distribution module according to Fig. 4;

[0042] Fig. 8 is a detailed view of the bottom of a mixing chamber in which a mixing device according to the invention is installed;

[0043] Fig. 9 represents a perspective and detail view of an electric motor cooperating with a mixing element according to the invention;

[0044] Figure 10 illustrates a flowchart of the different stages of a process for preparing a beverage according to the invention;

[0045] Fig. 11 illustrates a brewing step of a process for preparing a beverage according to the invention. Detailed description of the invention

[0046] Figure 1 illustrates an apparatus 1 for preparing and dispensing a beverage based on a food product. The food product is preferably, but not exclusively, a powder such as infant formula. This powdered food product is advantageously mixed with an aqueous liquid, preferably water, to obtain the beverage. The apparatus 1 is preferably for domestic use but could, of course, be intended for professional use.

[0047] With reference to Figures 1 and 2, the apparatus 1 of [Fig. 1] advantageously, but not limited to, comprises a frame 2, a food storage tank 3, and an aqueous liquid storage tank 4. The frame 2 has a base 5 configured to receive a receptacle 6 into which the beverage is poured. The receptacle 6 may be a baby bottle. Of course, the receptacle 6 could be a bottle, a cup, etc.

[0048] According to an example of an embodiment, the food product storage tank 3 is advantageously arranged above the base 5 along a longitudinal axis X (here vertical in reference to the plane of [Fig.1] and according to a situation of use of the device placed on a work surface).

[0049] The device 1 includes, for example, a first recess 7, the bottom of which is formed by the base 5 to receive the receptacle 6. The first recess 7 opens onto an upstream side 8 of the device 1 with respect to a first transverse axis Y (here horizontal and perpendicular to the plane of [Fig. 1]). The first transverse axis Y is perpendicular to the longitudinal axis X.

[0050] Advantageously, but not limitingly, the aqueous liquid storage tank 4 is arranged in a second recess (not shown) of the frame 2 formed at one of the first and second sides 10, 11 of the frame 2 along a second transverse axis T. The second transverse axis T is perpendicular to the longitudinal axis X and also to the first transverse axis Y.

[0051] The device 1 may include a selection panel 12 for selecting the water temperature and / or the type of food product, etc. The selection panel 12 is located on the upstream side 8 of the device 1, but it could be located on another side of the device 1 provided that it is easily accessible.

[0052] The device 1 includes a beverage dispensing module 15 for preparing a baby bottle, for example. The dispensing module 15 is advantageously, but not exclusively, arranged between the storage reservoir 3 and the first recess 7 intended to receive the receptacle 6 along the longitudinal axis X. In other words, the storage reservoir 4 is advantageously located in the upper part of the frame 2 and preferably above the dispensing module 15.

[0053] The distribution module 15 is preferably removable. This allows access to the various components of the distribution module 15. The device 1 advantageously includes a compartment (not shown) for receiving the distribution module 15. The compartment is optionally located in line with the first recess 7.

[0054] With reference to [Fig. 2], the dispensing module 15 includes a mixing chamber 17 suitable for receiving at least one aqueous liquid. The mixing chamber 17 is advantageously suitable for receiving, in particular, at least one volume of aqueous liquid and food product which will mix to form the beverage to be dispensed. In the following description, the food product considered is milk powder and the aqueous liquid is water, without being limiting.

[0055] The mixing chamber 17 advantageously comprises a shape of revolution about a central axis A, which is its axis of revolution. The mixing chamber 17 advantageously has a side wall 18 having, for example, a circular and generally cylindrical cross-section about the central axis A. The mixing chamber 17 advantageously extends between a first end 19a and a second end 19b along the central axis A. The mixing chamber 17 advantageously comprises an opening 20, which is located, for example, at the first end 19a. The opening 20 is delimited by a free edge 21 of the side wall 18. The food product is received inside the mixing chamber 17, for example, through the opening 20.

[0056] The mixing chamber 17 advantageously comprises an outlet 22 (visible in [Fig. 3]) for the prepared and mixed / brewed water and / or beverage. The outlet 22 is advantageously arranged opposite the opening 20 along the central axis A. The outlet 22 and the opening 20 are centered on the central axis A. Advantageously, the outlet 22 is located at the second end 19b of the mixing chamber 17. Advantageously, but not exclusively, the mixing chamber 17 includes a bottom 23 which is opposite along the central axis A to the opening 20 and which includes the outlet orifice 22.

[0057] In the embodiment example of [Fig.3], the outlet orifice 22 has a non-limiting circular cross-section.

[0058] In [Fig. 3], the mixing chamber 17 advantageously, but not exclusively, comprises an inlet port 24 through which water is introduced into the mixing chamber 17. The inlet port 24 is optionally fluidly connected to the storage tank 4 containing water. The apparatus 1 is advantageously equipped with a supply circuit (not shown) that connects the water storage tank 4 to the inlet port 24. The supply circuit may include a pump for extracting water from the storage tank 3 and a water heating device.

[0059] The inlet orifice 24 is for example formed on the side wall 18 of the mixing chamber 17, and opens into the inside of the mixing chamber 17. The inlet orifice 24 has an axis B whose direction is different from the central axis A of the mixing chamber 17. Advantageously, the axis B is substantially orthogonal (with possibly an inclination of plus or minus 10°) to the central axis A of the mixing chamber 17 (in a radial plane (perpendicular to the central axis A of revolution)). In other words, the inlet orifice 24 is, in this example, distinct from the opening 20. According to one embodiment, the axis B is advantageously parallel (or coincident) with a line tangent to the lateral wall 18 and contained in a radial plane (perpendicular to the longitudinal axis X) of the mixing chamber 17. The axis B is preferably located as close as possible to an internal surface 25 of the lateral wall 18 and oriented towards said internal surface 25.

[0060] Advantageously, the inlet orifice 24 is connected to a nozzle 62 which extends from the wall of the enclosure. The nozzle 62 is, for example, connected to the water supply circuit.

[0061] According to an advantageous, but not limiting, feature, the mixing chamber 17 includes a water guidance surface 26 at the outlet of the inlet orifice 24. The guidance surface 26 extends from the internal surface 25 of the side wall 18 and follows a portion of the side wall 18 around the central axis A. Such a configuration allows optimal orientation of the water inside the mixing chamber 17 and optimizes the mixing of the milk powder and water. The guiding surface 26 advantageously extends along a circle or a portion of a circle centered on the central axis A. Alternatively, the guiding surface 26 extends helically around the central axis A. In particular, the lateral wall 18 includes, for example, a bulge 27 which extends radially towards the central axis A and which forms the guiding surface 26. The bulge 27 also extends at least partially around the central axis A of the mixing chamber 17.

[0062] Advantageously, but not limitingly, the axis B of the outlet orifice 24 is located at approximately one-fifth of the height H of the mixing chamber 17 (measured from the free edge 21). Such a configuration makes it possible to avoid overflows depending on the volume of water distributed, the volume of the mixing chamber 17, and the rotational speed of the mixing element 36 described later.

[0063] Advantageously, but not limitingly, the guiding surface 26 is flush with the perimeter of the inlet orifice 24 and is located substantially at the same height H. This allows the water to cover the milk powder well when it is introduced into the mixing chamber 17.

[0064] The distribution module 15 advantageously includes a support 28 configured to hold the mixing chamber 17. For this purpose, and optionally, the support 28 includes a recess 29 for receiving the mixing chamber 17. The mixing chamber 17 is advantageously removable to facilitate cleaning, for example, in a dishwasher. The recess 29 is delimited by a side wall 30 that is substantially frame-shaped. This can, of course, have another shape. The side wall 30 advantageously, but not exclusively, has an external shape that substantially corresponds to that of the compartment of the appliance 1 into which the support 28 is inserted.

[0065] The side wall 30 may include, on an external surface 31 (facing outwards), guiding and retaining elements for the distribution module 15 that cooperate with corresponding elements of the device. These guiding elements may include ribs 32 intended to rest, for example, on corresponding ribs (not shown) of the device 1. These guiding and retaining elements facilitate the insertion, guiding, and retention of the distribution module 15 by its support 28 in the compartment of the device 1. The support 28 may include an upstream wall 33 intended to cover a portion of the upstream side 8 of the device 1.

[0066] In [Fig. 4], retention elements are provided to retain the mixing chamber 17 in the support 28. The retention elements may include an extension 34 on which a shoulder 35 rests. The extension 34 may be supported by the support 28 and the shoulder 35 may be supported by the mixing chamber 17, or vice versa. The extension 34 extends, for example, along an axis parallel to an axis of the housing 29 of the support 28. The extension 34 is, for example, annular or semi-circular around the axis of the housing 29.

[0067] Advantageously, but not limitingly, the housing 29 passes through the side wall of the support 28 on both sides, along the longitudinal axis, in the installation situation.

[0068] According to an advantageous, but not limiting, feature, the distribution module 15 comprises a mixing element 36 which is arranged at least in The mixing unit 36 ​​is located in the mixing chamber 17. Preferably, it is removable. This allows for thorough cleaning, for example. The mixing unit 36 ​​is configured to be driven, at least partially, within the mixing chamber 17 by an electric motor to mix the food product, in this case milk powder, and water. This homogenizes the mixture and eliminates any lumps.

[0069] Figure 6 shows the mixing element 36 in detail. In this embodiment, the mixing element 36 comprises a shape of revolution about an axis of revolution C. When the mixing element 36 is mounted at least partially within the mixing chamber 17, the central axis A and the axis of revolution C advantageously coincide. The axis of revolution C is preferably parallel to the longitudinal axis X of the apparatus 1 in its installed position.

[0070] The mixing unit 36 ​​is equipped with mixing elements 37 that interact with the water and milk powder. Advantageously, the mixing elements 37 extend inside the mixing chamber 17. These mixing elements 37 may include blades, fins, rods, or any similar element. Of course, the mixing elements 37 are advantageously free of sharp edges. Indeed, the aim is to mix or blend the ingredients for homogenization and not to damage them by chopping, for example, particularly the food product within the mixing chamber 17.

[0071] Preferably, the mixing element 36 comprises several rods 38 that are distinct and distributed around the axis of revolution C. The rods 38 advantageously form the mixing elements 37. The number of rods 38 can be between 2 and 6. Each rod 38 extends globally along the axis of revolution C, and preferably between a first end 39a and a second end 39b. The mixing elements 37, for example, have an outer periphery whose shape is substantially complementary to the inner surface 25 of the mixing chamber 17. Advantageously, the outer periphery of the set of rods lies within a circle in a given plane perpendicular to the axis of revolution C. The diameter of the circle is smaller than the inner diameter of the mixing chamber 17. The rods 38 are, for example, close to the inner surface 25 of the mixing chamber. The rods 38 have, for example, a curved profile. In this way, the mixture is optimized.The rods 38 each have a height corresponding approximately (plus or minus 10%) to the height H of the mixing chamber 17.

[0072] With reference to Figures 4 to 7, the mixing element 36 is advantageously equipped with a drive element which is connected to the mixing elements 37. The drive element is configured to be driven in rotation so as to also drive the mixing elements 37 in rotation. Advantageously, the element The mixing element 36 comprises a ring 40 centered on the axis of revolution C. The ring 40 acts as a drive element, for example. The ring 40 is advantageously provided with teeth 41 projecting radially outwards from the axis of revolution C. The teeth 41 are designed to mesh with a gear 42 connected, for example, to an electric motor 43 to drive the mixing element 36 in rotation. The teeth 41 advantageously extend outside the mixing chamber 17. In this example, the teeth 41 of the ring 40 are straight. This simplifies the manufacture of the ring 40. Of course, the teeth 41 of the ring 40 can be helical or herringbone.

[0073] The ring 40 comprises, for example, a side skirt 44 extending along the axis of revolution C and a collar 45 extending radially from the side skirt 44. The side skirt 44 extends, in the installed position, inside the mixing chamber 17. In other words, the side skirt 44 has an external diameter that is smaller than the internal diameter of the side wall 18 of the mixing chamber 17. The collar 45 advantageously extends outside the mixing chamber 17.

[0074] The crown 40 advantageously, but not exclusively, comprises a leg 46 (visible in [Fig.4]) which extends parallel along the axis of revolution C to the lateral skirt 44 and which is connected to the lateral skirt 44 for example by means of the collar 45. The leg 46 carries, in a non-limiting manner here, the teeth 41 of the crown 40.

[0075] As shown in [Fig.4], the tab 46 advantageously extends away from the side skirt 44 so as to form a groove 47 in which the free edge 21 of the side wall 18 of the mixing chamber 17 is received. The tab 46 allows better positioning of the mixing element 36 in the mixing chamber 17.

[0076] With reference to [Fig. 5] and optionally, the lug 46 includes a surface in contact with at least a portion of a guide bearing 49. Preferably, the lug 46 includes a lateral surface 46a in contact with a cylindrical surface 49aa of the guide bearing 49. The lug 46 further optionally includes a free end 48 facing a flat surface 49bb of the guide bearing 49. The free end 48 is at a distance from the flat surface 49bb. Such an arrangement makes it easier to position the mixing element 36 in the mixing chamber 17 and more particularly to center the disc 51 (described later) directly on the pin 52 of the mixing chamber 17. This also makes it possible to keep the collar 45 away from the free edge 21 of the side wall 18 of the mixing chamber so as not to hinder the rotation of the mixing element 36.

[0077] Advantageously, but not limitingly, the guide bearing 49 comprises a cylindrical body 49a having an axis parallel to the axis of the mixing chamber 17 and a base 49b extending radially outwards from one end of the body Cylindrical 49a. The cylindrical body 49a advantageously comprises the cylindrical surface 49aa. The base 49b preferably comprises the flat surface 49bb. The guide bearing 49 is mounted, for example, on a finger 59 extending along an axis E. This axis forms the axis of rotation of the guide bearing. The finger 59 is supported, for example, by the support 28.

[0078] According to one embodiment, there are three guide bearings 49. The guide bearings 49 are distributed at different locations on the support 28 and each cooperate with the mixing element 36.

[0079] Each rod 38 is connected to the crown 40 at one of its first and second ends 39a, 39b. In the example shown in [Fig. 6], the first end 39a of each rod 38 is connected to the crown 40. The first end 39a is connected, for example, to one of the ends of the side skirt 44. Each rod 38 optionally has a constant cross-section between the first end 38a and the second end 38b. A thickening 50 can be provided on each rod 38. The thickening 50 flares out, for example, towards the crown 40. Each thickening 50 can provide reinforcement for a rod 38.

[0080] With reference to [Fig.6], the rods 38 are also, for example, connected to each other at their second end 39b and at the axis of revolution C of the mixing organ 36.

[0081] Preferably, each rod 38 is connected to a base 51 at its second end 39b. The base 51 advantageously, but not exclusively, takes the form of a disk centered on the axis of revolution C. The base 51 is arranged opposite the ring 40 along the axis of revolution C.

[0082] According to one embodiment, the stirring element 36 includes an obstruction element for the outlet orifice 22 of the mixing chamber 17 only when it is rotating within the mixing chamber 17. This ensures that all the beverage is stirred before it flows through the outlet orifice 22. In this embodiment, the base 51 forms this obstruction element. The base 51 is, for example, positioned opposite the outlet orifice 22 of the mixing chamber 17 and at a distance from it so as to allow the stirred beverage to flow through the outlet orifice 22 when the stirring element 36 is stationary within the mixing chamber 17.

[0083] Advantageously, but not limitingly, the distance between the base 51 and the edge delimiting the outlet orifice 22, along the axis of revolution, is between 2 mm and 10 mm, and preferably between 2 mm and 5 mm.

[0084] With reference to [Fig. 8], optionally, the base 51 has an external diameter DI that is greater than the internal diameter D2 of the outlet orifice 22. This allows the base to slightly cover the outlet orifice 22 and prevent the flow of the mixture when the mixing element 36 is driven in rotation.

[0085] Still on [Fig. 8], the mixing chamber 17 advantageously, but not exclusively, includes a pin 52 which is intended to be housed in a recess 53 in the base 51. The pin 52 is, for example, centered on the central axis A and is positioned at the outlet orifice 22. However, the pin 52 does not obstruct the outlet orifice 22. The pin 52 allows the mixing element 36 to be centered in the mixing chamber 17 and also guides the rotation of the mixing element 36. According to an optional embodiment, the pin 52 is connected to the bottom 23 of the mixing chamber 17 via blades 61, visible in [Fig. 3]. These extend from an inner face of the outlet 22 to the pin 52 and are arranged at regular intervals from each other, leaving passages for the flow of the drink or water.

[0086] At least one of the mixing chamber 17, the support 28, and the stirring element 36 is made of a polymer material or a composite material with a polymer matrix. An example of such a material is Polypropylene (PP) or Acrylonitrile Butadiene Styrene (ABS), or a mixture thereof. These polymer materials have the advantage of being very lightweight yet robust. The material may also be a styrene-acrylonitrile resin (SAN), Polyoxymethylene (POM), Polyamide (PA), etc. Advantageously, the mixing chamber 17, the support 28, and the stirring element 36 are made of the above-mentioned examples of materials.

[0087] With reference to [Fig. 9], the apparatus 1 comprises an electric motor 43 which drives the stirring element 36 in rotation. The electric motor 43 is advantageously connected to the frame 2. Advantageously, the electric motor 43 comprises an output shaft (not shown) which is parallel to the longitudinal axis X. A gear 42 is advantageously mounted on the output shaft. In other words, the axis of the gear 42 and the axis of the ring gear 40 are parallel.

[0088] The electric motor 43 is advantageously connected to an electronic control unit 60, which is designed to control the motor. This unit is shown as a dashed line in the device in [Fig. 1]. The electronic control unit 60 also provides power to the electric motor 43. For this purpose, the electronic control unit 60 may include a power supply module for supplying voltage to the electric motor 43 and a module for controlling the rotation of the output shaft of the electric motor 43. The electronic control unit 60 is advantageously connected to an electrical power source, such as the household network, for example, via electrical cables from the device 1 (not shown).

[0089] According to one embodiment, the apparatus 1 advantageously comprises elastic prestressing means 53 intended to retain teeth of the gear 42 engaged with the teeth 41 of the ring 40. According to one embodiment, the elastic preload means 53 include at least one torsion spring. For this purpose, the device 1 includes, for example, a movable support 54 which is pivotally mounted relative to the frame 2. The electric motor 43 is mounted on the movable support 54. More specifically, the device 1 optionally includes a base 55 which is fixed to a longitudinal wall of the frame 2, and the movable support 54 pivots relative to the base 55. Alternatively, the movable support 54 pivots directly relative to the longitudinal wall of the frame 2.

[0090] The base 55 carries a pivot axis D which is parallel to the longitudinal axis X (and to that of the output shaft of the electric motor 43). The movable support 54 comprises, for example, a body 56 which extends along an axis parallel to the longitudinal axis X and at least one lug 57 which extends transversely from the body 56. In this example, the body 56 is cylindrical and hollow so as to house the electric motor 43 and two lugs 57 extend radially outwards. Each ear 57 has a bore in which a pivot pin 58 is received, which is fixed to the base 55. The pivot pin 58 can be carried by the movable support 54 and the bore formed in the base 55. Each pivot pin 58 forms the pivot axis D. Alternatively, a single pivot shaft, forming the pivot axis D, is fixed to the base and each ear 57 is pivotally mounted on the pivot shaft.The elastic preload means 53 are mounted, for example, around the pivot axis D. Here, a torsion spring is advantageously mounted on each pivot pin 58. The torsion spring includes, for example, an end which is fixed to the base 55 or to the lug 57.

[0091] We will now describe a process 100 for dispensing a beverage from a powdered food product and an aqueous liquid. The steps of process 100 are illustrated in [Fig. 10].

[0092] The process 100 includes a step 110 of introducing a powdered food product into the mixing chamber 17. Preferably, the food product is introduced via the opening 20 of the mixing chamber 17. Advantageously, a predetermined mass of food product is introduced into the mixing chamber 17. For this purpose, the apparatus 1 includes a weighing system (not shown) which is optionally arranged above the mixing chamber 17 along the longitudinal axis X.

[0093] Prior to step 110, the process 100 advantageously includes a food product supply step 101. During this step 101, the food product is placed in the storage tank 3, preferably located above the weighing system along the longitudinal axis X. The food product is discharged from the storage tank 3 to the weighing system. Advantageously, the unit electronic control 60 is electronically linked to tank closure means which can occupy positions allowing the food product to be discharged or retained in the storage tank 3.

[0094] The process 100 advantageously includes a weighing step 102 of a predetermined mass of food product. The weighing system includes a receiving surface (not shown) on which the weighing is performed. Optionally, a load cell can be mounted, at least partially, on this receiving surface to determine the mass. Alternatively, the receiving surface is connected to a delivery device (not shown) for the food product to the dispensing module. The delivery device is preferably connected to the electronic control unit 60. Advantageously, the delivery device dispenses the food product when the predetermined mass is reached. In other words, once the predetermined mass is reached, the food product is poured into the mixing chamber 17.

[0095] The process 100 advantageously includes a step 120 of introducing an aqueous liquid into the mixing chamber 17. The aqueous liquid is advantageously introduced in a direction different from that of the food product. Preferably, the aqueous liquid (represented by arrow L in [Fig. 11]) is introduced via the inlet orifice 24, which is separate from the opening 20 for introducing the food product (represented by arrow P in [Fig. 11]). The aqueous liquid is preferably injected at a predetermined temperature to promote mixing of the food product and the aqueous liquid (here, milk powder and water). Alternatively, the aqueous liquid is injected at ambient temperature. The aqueous liquid can also be injected under pressure.

[0096] The process 100 advantageously includes a mixing step 130 of the food product and the aqueous liquid in the mixing chamber 17. Advantageously, the mixing step is carried out by means of the mixing element 36, which is installed in the mixing chamber 17. This step 130 is shown, for example, in [Fig. 11]. For this purpose, advantageously, the electronic control unit 60 sends a control signal to the electric motor 30 to drive the rotation of the toothed wheel 42, which in turn drives the rotation of the mixing element 36 via the ring gear 40. The rods 38, connected to the ring gear 40, then mix the mixture to obtain the beverage. According to an advantageous feature, the mixing is carried out for a predetermined duration of between 1 and 15 seconds, and preferably between 1 and 5 seconds.During mixing, the speed of the electric motor 30 increases to a predetermined value to obtain a homogeneous mixture (without seeking particle separation). The predetermined speed value can vary depending on the volume contained in the mixing chamber 17 and possibly the size of the preparation required.

[0097] The process 100 advantageously includes a retention step 140 for the mixture inside the mixing chamber 17. The stirred mixture is subjected to a centrifugal force, generated by the stirring element 36 driven at a predetermined speed, which projects it onto the internal surface 25 of the mixing chamber 17 and at a distance from the central axis C of the mixing chamber 17 and from the outlet orifice 22. This allows, on the one hand, the mixture to be kept inside the mixing chamber 17 and, on the other hand, the mixing time and its effectiveness to be extended. The base 51 also further prevents the mixture from flowing out of the outlet orifice 22 during the rotation of the stirring element 36.

[0098] Advantageously, the process 100 includes a step 150 for preventing the stirring element 36 from rotating. For this purpose, the electronic control unit 60 sends a command to the electric motor 43 to stop it, thereby preventing the gear 42 from rotating. This also prevents the ring 40 from rotating. The stopping step 150 brings the stirring step 130 to a halt.

[0099] The process 100 advantageously includes a distribution step 160 of the stirred mixture through the outlet 22 of the mixing chamber 17. The distribution 140 is carried out automatically after the stirring step 130 (and the immobilization step 150 of the stirring element 36). In particular, at the end of the rotation of the stirring element 36, i.e., at the end of step 150, the outlet 22 being free, the mixture flows naturally by gravity towards the outlet 22.

[0100] According to an embodiment of the distribution process 100, during the introduction step 120, a first volume of aqueous liquid is introduced into the mixing chamber 17. The first predetermined volume corresponds, for example, to half the total volume of beverage to be prepared. Of course, the first volume may correspond to a different proportion.

[0101] By way of example, the electronic unit 60 controls the pump of the feed circuit to extract the first predetermined volume. Advantageously, this first predetermined volume is calculated by the electronic control unit 60 based on the total volume to be prepared. This first volume of aqueous liquid is mixed with the entire predetermined mass of food product to obtain a concentrated beverage with a first concentration. Indeed, only a portion of the aqueous liquid volume is mixed with the entire mass of powdered food product. For the purposes of this invention, the term "concentration" refers to the quantity of powdered product per given volume of aqueous liquid. A concentrated beverage comprises a ratio of the mass of powdered product to a given first volume that is greater than a ratio of the mass of powdered product over a second given volume (greater than the first volume). The concentrated beverage is brewed according to brewing step 130 and then distributed according to distribution step 160 after the brewing unit has been immobilized (step 150).

[0102] The process 100 advantageously includes a rinsing step 170 of the mixing chamber 17 so as to detach at least the powdery food residues from the internal surface 25 of the mixing chamber 17. The rinsing step 170 includes a substep 171 of supplying a second predetermined volume of aqueous liquid into the mixing chamber 17. This second volume of liquid corresponds to the remainder of the total volume of aqueous liquid intended to prepare the beverage. Advantageously, the electronic unit 60 controls the pump of the supply circuit to extract the second predetermined volume. In this case, the second volume corresponds to half of the total volume of aqueous liquid for preparing the beverage. The second volume, injected through the inlet port 24, is guided by the guiding surface 26 and flows over the internal surface 25, particularly in the upper part of the mixing chamber 17.This allows for the recovery of any powder residue that may have been attached near the free edge 21 of the mixing chamber 17. Optionally, the second volume of aqueous liquid is injected after the distribution step and after a duration of between 1 and 2 seconds.

[0103] The rinsing step 170 also advantageously includes a substep 172 of stirring the second predetermined volume of aqueous liquid by means of the stirring element 36. During stirring (step 172), the second volume sweeps across all surfaces of the rods 38 and the entire internal surface 25 of the mixing chamber 17 to recover all powder residues and obtain a rinsing beverage. Advantageously, the rinsing beverage comprises a second concentration whose concentration ratio is lower than that of the first concentration.

[0104] The rinsing step 170 advantageously includes a sub-step for retaining the rinsing beverage in the mixing chamber 17. For this purpose, the stirring element 36 is driven at a predetermined speed generating a centrifugal force applied to the second volume of aqueous liquid which is projected onto the internal surface 25 and at a distance from the central axis A and the outlet orifice 22.

[0105] The process 100 advantageously includes a step of immobilizing 180 the mixing element 36. As before, the electronic control unit 60 sends a control order to the electric motor 43 so that it ceases to operate and immobilizes the toothed wheel 42 and the ring 40 from rotating.

[0106] Advantageously, the process 100 includes a step 190 of distributing the rinsing beverage through the outlet 22 to complete the concentrated beverage The beverage is pre-distributed to obtain the desired total volume of aqueous liquid. The distribution is advantageously automated; the rinsing beverage flows by gravity as soon as the mixing unit 36 ​​comes to a stop. The second volume flows over a period of time, for example, between 4 and 6 seconds. The concentrated beverage is diluted. Advantageously, the beverage includes a third concentration whose concentration ratio is lower than that of the first concentration. Preferably, the concentration ratio of the third concentration is higher than that of the second concentration.

Claims

Demands

1. Beverage dispensing module (15) for an apparatus (1) for preparing the beverage from a mixture of a powdered food product and an aqueous liquid, the module comprising a mixing chamber (17) with a central axis (A), including an opening (20) through which the powdered food product is introduced and an outlet (22) through which the mixture is dispensed, the outlet (22) being disposed opposite the opening (20) along the central axis (A), characterized in that the dispensing module (15) comprises a stirring element (36) equipped with a drive element configured to be driven in rotation and stirring elements (37) extending inside the mixing chamber (17) and connected to the drive element for stirring the mixture and retaining the mixture within the mixing chamber (17) during the rotation of the stirring element. brewing (36).

2. Distribution module (15) according to claim 1, characterized in that the mixing element (36) comprises a ring (40) centered on an axis of revolution (C) of the mixing element (36) and provided with teeth (41) projecting radially outwards with respect to the axis of revolution (C), the teeth (41) meshing with a toothed wheel (42) connected to an electric motor (43) of the apparatus (1).

3. Distribution module (15) according to claim 2, characterized in that the mixing member (36) comprises several rods (38) being on the one hand, each connected to the ring (40) at a first end (39a), and on the other hand connected to a base (51), at a second end (39b), the base (51) being in the form of a disc disposed opposite the outlet orifice (22) of the mixing chamber (17) and at a distance from it so that the mixture flows through the outlet orifice (22) when the mixing member (36) is stationary in rotation.

4. Distribution module (15) according to claim 3, characterized in that the mixing member (36) includes an obstruction element for the outlet orifice (22) during its rotation in the mixing chamber (17), the base (51) forming the obstruction element during the rotation of the mixing member (36).

5. Distribution module (15) according to any one of the preceding claims, characterized in that the mixing chamber (17) comprises a side wall (18) centered on the axis of revolution and an inlet orifice (24) for the volume of aqueous liquid formed in the side wall (18).

6. Distribution module (15) according to claim 5, characterized in that the mixing chamber (17) comprises a guiding surface (26) for the aqueous liquid exiting the inlet orifice (24) which is carried by at least part of an internal surface (25) of the side wall (18) around the axis of revolution (A).

7. Apparatus (1) for preparing a beverage based on a food product characterized in that it comprises a frame (2) receiving the beverage distribution module (15) according to any one of the preceding claims and an electric motor (43) capable of rotating the stirring element (36) via the ring (40), the electric motor (43) comprising an output shaft on which is mounted the toothed wheel (42) meshing with the ring (40) of the stirring element (36).

8. Apparatus (1) according to claim 7, characterized in that it comprises elastic preload means (53) intended to maintain teeth of the gear wheel (42) engaged with the teeth (41) of the ring (40).

9. Apparatus (1) according to the preceding claim, characterized in that it comprises a movable support (54) which is mounted pivotally relative to the frame (2) around a pivot axis (D) and on which the electric motor (43) is mounted, the elastic preload means (53) being mounted around the pivot axis (D).

10. A method (100) for dispensing a beverage from a powdered food product and an aqueous liquid by means of a dispensing module (15) according to any one of claims 1 to 6 or an apparatus according to any one of claims 7 to 9, the method (100) comprising the following steps of: - introducing (110) a powdered food product through the opening (20) of the mixing chamber (17), - introducing (120) the volume of aqueous liquid into the mixing chamber (17), - stirring (130) the mixture comprising the food product and the aqueous liquid by means of the stirring element (36), - retention (140) of the mixture in the mixing chamber (17) during the rotation of the mixing element (36), - immobilization (150) of the mixing unit (36), and - distribution (150) of the mixture through the outlet orifice (22) of the mixing chamber (17) at the end of the immobilization step (150).

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