Electric base for food preparation appliance

Abstract

The invention relates to an electric base (2) for a food preparation appliance (1), comprising a housing (10), a drive device (20) accommodated in the housing (10), a magnetic coupling part (30) of the base, which engages with a drive motor (21) and can be moved between a rest position and a coupled position, a guide device, a magnetic coupling part (30) for guiding the base, and a clutch device, a magnetic coupling portion (30) for moving the base between a rest position and a coupled position. According to the invention, the clutch device comprises at least one control member (41) which is arranged at least partially around a magnetic coupling portion (30) of the base.

Description

Technical Field

[0001] The present invention generally relates to food preparation appliances for preparing and / or processing and / or cooking food. Such food preparation appliances generally include a motorized base with a drive motor and a food preparation bowl reversibly coupled to the motorized base and including a working tool. Background Art

[0002] Document EP 2548636 A1 is known from the prior art of food preparation appliances, which discloses a food preparation appliance comprising a motorized base equipped with a drive motor and a food preparation bowl reversibly coupled to the motorized base, the food preparation bowl including a working tool and a magnetic coupling device between the motorized base and the food preparation bowl. On the other hand, such systems are generally complex, particularly in that the motorized base has many moving parts, including the drive motor. This leads to an increase in the internal volume of the motorized base (due to the travel distance that must be taken into account), as well as the complexity and cost required to ensure the correct displacement and / or guidance of all these internal components. Summary of the Invention

[0003] An object of the present invention is to overcome the above-mentioned disadvantages of the prior art and, in particular, to first propose a food preparation appliance having a motorized base equipped with a drive motor and a food preparation bowl reversibly coupled to the motorized base, the food preparation appliance being intended to be compact and / or having less complex internal components and / or having simpler and / or fewer internal guide devices.

[0004] To this end, a first aspect of the present invention relates to a motorized base for a food preparation appliance,

[0005] The food preparation appliance comprises a motorized base and at least one food preparation bowl, the food preparation bowl being coupled to the motorized base and comprising a rotating member arranged to be rotated by the motorized base.

[0006] The motorized base includes:

[0007] case,

[0008] A drive device with a drive motor, the drive device being accommodated in a housing,

[0009] a magnetic coupling portion of the base that engages with the drive motor to be driven in rotation and is movable relative to the housing and the drive motor between a rest position and a coupled position, in which the magnetic coupling portion of the base is configured to reversibly couple with a magnetic coupling portion of the bowl connected to the rotating member,

[0010] a guiding device configured to guide the magnetic coupling portion of the base when the magnetic coupling portion of the base moves relative to the drive motor;

[0011] a clutch arrangement arranged to move the magnetically coupled portion of the base between a rest position and a coupled position,

[0012] The clutch device includes at least one control component for the magnetic coupling portion of the base, the control component being arranged at least partially around the magnetic coupling portion of the base. According to the above embodiment, the control component at least partially surrounds the magnetic coupling portion of the base, thereby reducing the overall height of the device and improving its compactness. Furthermore, the magnetic coupling portion of the base is configured to move relative to the housing, particularly relative to the drive motor, thereby allowing the drive motor to be stationary relative to the housing. This simplifies the internal structure and eliminates large movable components, further contributing to the compactness of the food preparation appliance.

[0013] According to one embodiment, the control member may be arranged to apply a displacement force parallel to the direction of movement of the magnetic coupling portion of the base between the coupling position and the rest position. The control member applies a displacement force parallel to the displacement direction to the magnetic coupling portion of the base: the kinematic chain is simple.

[0014] In one embodiment, the control component may be translationally movable relative to the housing.

[0015] According to one embodiment, the clutch device may include at least one guide post fixed to the housing, and the control component may be slidably mounted on the at least one guide post. This provides stable and reliable guidance. Furthermore, the guide post may be mounted at the same height as the total displacement, ensuring good compactness. According to one embodiment, the guide post may extend through the control component.

[0016] According to one embodiment, the clutch device may comprise an electric motor member meshing with the control member in a screw connection. This type of connection allows for efficient conversion of the rotational movement of the clutch motor into a translational movement.

[0017] According to one embodiment, the motorized component may at least partially surround the control component and may preferably form a motorized crown. Just as the control component may at least partially surround the magnetic coupling portion of the base, the motorized component may at least partially surround the control component (and thus the magnetic coupling portion of the base), thereby reducing the overall height of the device, which improves compactness.

[0018] According to one embodiment, the electric component can be mounted on the housing in a pivotally connected manner.

[0019] According to one embodiment, the clutching device may include a clutch actuator, such as a clutch motor, arranged to cause movement of the control component to move the magnetic coupling portion of the base between the rest position and the coupled position. The movement of the magnetic coupling portion of the base between the rest position and the coupled position can be automated and controlled according to the needs and usage of the food preparation appliance.

[0020] According to one embodiment, the clutch actuator may comprise at least one power pinion meshing with the motorized component.The reduction ratio may be adjusted to suit the forces acting during operation of the food preparation appliance.

[0021] According to one embodiment, the clutch device may comprise at least one end-of-travel sensor which controls the stopping of the clutch actuator once the magnetic coupling part of the base has reached the rest position or the coupled position.

[0022] According to one embodiment, the at least one end-of-travel sensor can be fixed to the motorized component. In particular, a sensor part (e.g., a detection target) mounted on the motorized component and another sensor part (e.g., a detection body) integral with or mounted on the housing can be provided.

[0023] According to one embodiment, the control member may be arranged to move the magnetic coupling portion of the base from the coupled position to the rest position, preferably, the control member may be arranged to move only the magnetic coupling portion of the base from the coupled position to the rest position. According to one preferred embodiment, the control member may be arranged to move only the magnetic coupling portion of the base from the coupled position to the rest position, thereby being a single-acting movement, which allows simplifying the structure and assembly.

[0024] According to one embodiment, the clutch device may comprise elastic return means arranged to apply an elastic force to the magnetic coupling portion of the base to return it to the coupled position.

[0025] According to one embodiment, the magnetic coupling portion of the base may include at least one first coupling magnet arranged at the periphery of the magnetic coupling portion of the base. The first coupling magnet arranged at the periphery of the magnetic coupling portion of the base provides a coupling that can transmit high transmission torque.

[0026] According to one embodiment, the magnetic coupling portion of the base may include at least one first crown made of magnetic material, which is configured to guide the coupling magnetic flux of the magnetic coupling portion of the base. Such a crown allows the magnetic flux lines to be concentrated, which makes it possible to better utilize the magnetic material and more easily obtain a coupling capable of transmitting a high transmission torque.

[0027] According to one embodiment, the guiding means may be formed by a sliding connection arranged between a magnetic coupling portion of the base and the drive motor.

[0028] According to one embodiment, the guiding means may comprise:

[0029] The output shaft of the driving motor or the output sleeve integral with the output shaft, including the keyway end,

[0030] A grooved hub that couples to the keyed end of the output shaft or sleeve and is integral with the magnetic coupling portion of the base. This arrangement generally has a good guidance ratio.

[0031] According to one embodiment, the housing may include a receiving interface arranged to receive at least one type of food preparation bowl, the receiving interface being exclusive of and / or devoid of:

[0032] Any opening to movable drive parts, and / or

[0033] Any movable drive parts, and / or

[0034] Any movable drive projection. In other words, the receiving interface can be a flat and / or smooth surface, which is easy to clean and provides an aesthetically pleasing visual appearance.

[0035] Alternatively, according to one embodiment, the housing may comprise a receiving interface with a centering device for the food preparation bowl on the motorized base. In particular, the centering device may comprise a centering boss and / or a centering mark and / or a center protrusion, and the food preparation bowl may comprise a female counterpart for centering on the centering boss and / or the centering mark and / or the center protrusion. Centering bosses and / or centering marks and / or center protrusions having an asymmetric (rotational, i.e. non-circular) shape may be provided to provide a rotational stop and / or angular indexing. A plurality of centering bosses and / or centering marks and / or protrusions may be provided to achieve a rotational stop. It may also be provided that all or part of the male counterparts are provided on the food preparation bowl instead of on the motorized base.

[0036] According to one embodiment, the motorized base may include a stop device arranged between the housing and the magnetic coupling portion of the base when the magnetic coupling portion of the base is in the coupled position, the stop device preferably comprising at least one ball stop or a pin stop. The stop device allows limiting frictional forces, which contributes to providing efficient coupling.

[0037] According to one embodiment, the clutch device can be arranged to generate a gap between the control component and the magnetic coupling portion of the base when the magnetic coupling portion of the base is in the coupled position, preferably an axial gap relative to the displacement direction of the magnetic coupling portion of the base. This axial gap allows the frictional forces to be limited, which helps to provide a highly efficient coupling.

[0038] According to one embodiment, the motorized base may include a detection and / or identification device configured to detect and / or identify a food preparation bowl and / or a type of food preparation bowl coupled to the motorized base. Provision may be made for the operation of the food preparation appliance to be adjusted based on a signal emitted by the detection and / or identification device. WO2020011574A1 discloses such a detection device.

[0039] According to one embodiment, the drive motor may be a brushless and / or permanent magnet type motor.

[0040] According to one embodiment, the clutch motor may be a universal motor including a rotor and a stator connected in series.

[0041] According to one embodiment, the clutch motor may be a reduction motor.

[0042] According to one embodiment, the clutch motor may be mounted on the periphery of the electric component.

[0043] According to one embodiment, the electric component may be arranged between the clutch motor and the magnetic coupling portion of the bowl.

[0044] According to one embodiment, when the magnetic coupling portion of the base is in the rest position, the control component can be arranged to form an obstacle to the movement of the magnetic coupling portion of the base towards the coupled position. According to this embodiment, the control component can include a flange or a lug or a shoulder that forms an obstacle, a stop or an obstruction to the displacement of the magnetic coupling portion of the base, in particular towards the coupled position.

[0045] In other words, the present invention may relate to a motorized base for a food preparation appliance, the food preparation appliance comprising a motorized base and at least one food preparation bowl coupled to the motorized base, the food preparation bowl comprising a rotating member arranged to be driven in rotation by the motorized base,

[0046] The motorized base includes:

[0047] case,

[0048] A drive device with a drive motor, which is accommodated in a housing,

[0049] a magnetic coupling portion of the base that engages with the drive motor to be driven in rotation and is movable relative to the housing and the drive motor between a rest position and a coupled position, in which the magnetic coupling portion of the base is configured to reversibly couple with a magnetic coupling portion of the bowl connected to the rotating member,

[0050] a guiding device configured to guide the magnetic coupling portion of the base when the magnetic coupling portion of the base moves relative to the drive motor;

[0051] a clutch device configured to move the magnetic coupling portion of the base between an idle position and a coupled position,

[0052] Wherein, when the magnetic coupling portion of the base is in the idle position, the control component is arranged to form an obstacle to the movement of the magnetic coupling portion of the base towards the coupling position.

[0053] According to one embodiment, the magnetic coupling portion of the base can be arranged to generate magnetic flux lines parallel to the displacement direction of the magnetic coupling portion of the base at least between the magnetic coupling portion of the base and the magnetic coupling portion of the bowl. Such an arrangement provides a small radial bulk and allows the coupling interface to have a flat surface.

[0054] In other words, the present invention may relate to a motorized base for a food preparation appliance, the food preparation appliance comprising a motorized base and at least one food preparation bowl, the food preparation bowl being coupled to the motorized base and comprising a rotating member arranged to be driven in rotation by the motorized base,

[0055] The motorized base includes:

[0056] case,

[0057] A drive device with a drive motor, the drive device being accommodated in a housing,

[0058] a magnetic coupling portion of the base that engages with the drive motor to be driven in rotation and is movable relative to the housing and the drive motor between a rest position and a coupled position, in which the magnetic coupling portion of the base is configured to reversibly couple with a magnetic coupling portion of the bowl connected to the rotating member,

[0059] a guiding device configured to guide the magnetic coupling portion of the base when the magnetic coupling portion of the base moves relative to the drive motor;

[0060] a clutch arrangement arranged to move the magnetically coupled portion of the base between a rest position and a coupled position,

[0061] Therein, the magnetic coupling portion of the base is arranged to generate magnetic flux lines parallel to the displacement direction of the magnetic coupling portion of the base at least between the magnetic coupling portion of the base and the magnetic coupling portion of the bowl.

[0062] A second aspect of the present invention may be directed to a food preparation bowl for coupling with a motorized base according to the first aspect of the present invention, the food preparation bowl comprising at least:

[0063] a base plate and / or lower plate coupled to the housing of the motorized mount,

[0064] Job container,

[0065] Rotating components,

[0066] The magnetic coupling portion of the bowl is connected to the rotating member.

[0067] According to one embodiment, the base plate or lower shell and the working container may be one and the same component and / or may be formed integrally.

[0068] According to one embodiment, the bottom plate and / or lower shell and / or working container may not have through holes. In other words, the magnetic coupling of the food preparation bowl does not need to completely pass through the axis of the bottom plate and / or lower shell and / or working container.

[0069] According to one embodiment, the rotating member may form a drive arranged to removably receive a working tool.

[0070] According to one embodiment, the rotating member may form a work tool.

[0071] According to one embodiment, the rotating member may be permanently mounted on the working vessel.

[0072] According to one embodiment, the rotating member may be detachably mounted on the working container.

[0073] According to one embodiment, the food preparation bowl may include onboard detection and / or identification means arranged to allow detection and / or identification of a food preparation bowl and / or type of food preparation bowl coupled to the motorised base according to the first aspect of the invention.

[0074] A third aspect of the present invention may relate to a food preparation appliance comprising a motorized base according to the first aspect of the present invention and a food preparation bowl according to the second aspect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Other features and advantages of the present invention will become more apparent on reading the following detailed description of an embodiment of the invention, given by way of example and in no way limiting, and illustrated by the accompanying drawings, in which:

[0076] Figure 1 shows a general front view of a food preparation appliance including a motorized base and a food preparation bowl for mounting on a receiving interface of the motorized base;

[0077] Figure 2 express Figure 1 A cross-sectional view of the motorized base of the food preparation appliance, with the magnetic coupling portion of the base in an idle position;

[0078] Figure 3 express Figure 2 A cross-sectional view of the electric base, with the magnetic coupling portion of the base in the coupled position;

[0079] Figure 4 express Figure 1 A cross-sectional view of a food preparation appliance comprising a Figure 3 Electric base. DETAILED DESCRIPTION

[0080] Figure 1 A front view of a food preparation appliance 1 is shown, comprising a motorized base 2 and a food preparation bowl 3 , which is configured to be reversibly coupled to a receiving interface 4 of the motorized base 2 .

[0081] The motorized base 2 comprises a housing 10 with feet 14 and a human-machine interface 16, in the example shown, with a display and control buttons. The receiving interface 4 is formed in this example by the upper surface of the motorized base 2, in this example in the form of a flat surface.

[0082] The food preparation bowl 3 is configured to receive food to be prepared and / or cooked. To this end, the food preparation bowl 3 typically includes a work tool (removable or non-removable), a lid (e.g., with a feed chute), a gripping device (handle), etc. The work tool typically may include a knife or a stirring blade, or a mixing blade, or a kneading blade for cutting, chopping, stirring, mixing, pressing, or kneading the food to be prepared received in the food preparation bowl 3. Optionally, it may also be provided that the food preparation bowl 3 may be heat-resistant for cooking the food to be prepared. A cooking device (resistance heating or induction heating) may be provided in the food preparation bowl 3 and / or in the electric base 2.

[0083] like Figure 1 As shown, the food preparation bowl 3 is configured to be reversibly coupled to the electric base 2 and drive the working tool of the food preparation bowl 3 to move. The food preparation appliance 1 provides a magnetic coupling device between the driving motor 21 of the electric base 2 and the working tool of the food preparation bowl 3.

[0084] like Figure 2 As shown, the electric base 2 includes in particular:

[0085] Housing 10,

[0086] A drive device 20 with a drive motor 21 is housed in the housing 10.

[0087] The magnetic coupling portion 30 of the base is engaged with the drive motor 21 so as to be driven to rotate and can be in an idle position (see FIG. Figure 2 ) and connection position (see Figure 3 ), in which the magnetic coupling portion 30 of the base is arranged to reversibly couple with the magnetic coupling portion 60 of the bowl connected to the rotating member 70,

[0088] a guide device arranged to guide the magnetic coupling portion of the base when the magnetic coupling portion 30 of the base moves relative to the drive motor 21,

[0089] A clutch device 40 is arranged to move the magnetic coupling portion 30 of the base between a rest position and a coupled position.

[0090] In detail, the housing 10 comprises a housing body 12 covered by a housing upper wall 11 and internal ribs 13. The housing 10 is usually made of plastic, but metal parts (cover, metal inserts) may also be provided, and even the housing body 12 may be made of metal.

[0091] The drive device 20 includes a drive motor 21 with an output shaft 22, which supports an output sleeve 23 integral with the output shaft 22 via, for example, a keyway, in particular a pin 25. The drive motor 21 is typically a permanent magnet motor, also known as a brushless motor. Such a drive motor 21 is compact and has high performance in terms of torque and speed.

[0092] The magnetic coupling part 30 of the base meshes with the drive motor 21 via the output sleeve 23 and comprises in particular a mobile support 32 carrying a plurality of first coupling magnets 31 and a first crown 33 made of magnetic material, which is arranged to guide the magnetic flux from the first coupling magnets 31. It can be noted that the first coupling magnets 31 are arranged on the periphery of the mobile support 32 in order to be able to transmit a high transmission torque.

[0093] The guide means are arranged to guide the magnetic coupling portion 30 of the base when it moves relative to the drive motor 21. To this end, it can be noted that the mobile bracket 32 ​​has a groove on its hub, which meshes with a keyway provided on the outer diameter of the shaft formed by the output sleeve 23, and the hub is therefore grooved so that the mobile bracket 32 ​​can slide vertically relative to the output sleeve 23 (and therefore also relative to the drive motor 21 and the housing 10) while being driven in rotation by the drive motor 21. The magnetic coupling portion 30 of the base also includes a stop means, in this example a needle stop 34, which is used to limit the magnetic coupling portion 30 of the base in the upper wall 11 of the housing by bearing on it. Figure 2 or Figure 3 Upward movement.

[0094] The clutch device 40 for moving the magnetic coupling portion 30 of the base between the rest position and the coupled position comprises at least:

[0095] A control component 41 for controlling the movement of the magnetic coupling portion 30 of the base, in particular comprising a flange covering the first crown 33,

[0096] The guide column 48 is fixed to the housing 10 and is installed in sliding connection with the control component 41.

[0097] The electric component 42 is pivotally mounted on the housing 10 (via the rib 13 and the stopper 15 screwed onto the housing 10) and engages with the control component 41 via a screw connection.

[0098] The clutch motor 43 includes a power pinion 44 meshing with the electric component 42, for causing the movement of the control component 41, thereby moving the magnetic coupling portion 30 of the base between the idle position and the coupling position,

[0099] The elastic reset device is formed by a compression spring 45, which is arranged between the output sleeve 23 and the movable bracket 32 ​​and is configured to apply a reset force to the magnetic coupling part 30 of the base towards the coupling position.

[0100] A stroke end sensor 46 is installed between the housing 10 (on the rib 13) and the electric component 42, and is configured to cooperate with a detection member 47 carried by the electric component 42. The stroke end sensor 46 is arranged to control the stop of the clutch motor 43 once the magnetic coupling part 30 of the base reaches the idle position or the coupling position.

[0101] As mentioned above, the magnetic coupling portion 30 of the base can occupy an idle position (e.g. Figure 2 as shown) and the connection position (as shown) Figure 3 shown).

[0102] In fact, from Figure 2 Starting from the idle position of the clutch motor 43, the clutch motor 43 can be started to drive the electric component 42 to rotate. In this way, due to the spiral connection between the electric component 42 and the control component 41, and due to the sliding connection between the guide column 48 and the control component 41, the control component will move vertically upward to reach Figure 3 At the same time, the compression spring 45 pushes the mobile bracket 32, which slides on the output sleeve 23 and follows the movement of the control member 41 to position the magnetic coupling part 30 of the base in the Figure 3 The connection position is shown.

[0103] In the opposite direction, from Figure 3 Starting from the coupled position shown, the clutch motor 43 can be started to drive the electric component 42 to rotate in the opposite direction to the previous direction. In this way, due to the screw connection between the electric component 42 and the control component 41, and due to the sliding connection between the guide column 48 and the control component 41, the control component will move vertically downward to reach Figure 2During this movement, although the compression spring 45 pushes the mobile bracket 32 ​​upward, the control component 41 together with its flange covering the first crown 33 acts on the mobile bracket 32, and the mobile bracket can only slide on the output sleeve 23 to follow the downward movement of the control component 41, so as to position the magnetic coupling part 30 of the base as shown in FIG. Figure 2 idle position.

[0104] refer to Figure 1 , it can be noted that:

[0105] When the magnetic coupling portion 30 of the base occupies the idle position, the food preparation bowl 3 can be freely placed on or removed from the receiving interface 4 of the electric base 2.

[0106] When the magnetic coupling portion 30 of the base occupies the coupling position, the food preparation bowl 3 cannot be freely removed from the receiving interface 4 of the electric base 2 .

[0107] Figure 4 express Figure 1 A cross-sectional view of a food preparation appliance 1 comprising a food preparation bowl 3 coupled to the food preparation bowl 3 Figure 3 Electric base 2.

[0108] In particular, the food preparation bowl 3 comprises at least:

[0109] The bowl body 50 includes a working container 51, a bottom plate 52 supporting the working container 51, and a lower plate 53 connected to the receiving interface 4 of the electric base 2.

[0110] The rotating member 70 is composed of a bimetallic blade 72 carried by a rotating shaft 71 in the illustrated example.

[0111] The bowl's magnetic coupling portion 60 is connected to the rotating member 70 and comprises, in particular, a rotating support 62 embedded in a rotating shaft 71, an onboard second coupling magnet 61, an onboard needle stopper 63, and a second crown 64 made of a magnetic material, which is configured to guide the magnetic flux from the onboard second coupling magnet 61. It should be noted that the onboard second coupling magnet 61 is arranged around the periphery of the rotating support 62 in order to be able to transmit a high transmission torque.

[0112] The bowl's magnetic coupling portion 60 and the rotating member 70 are mounted in a pivotally connected manner relative to the working container 51 , and the rotating bracket 62 is axially abutted against the lower plate 53 by means of an onboard pin stopper 63 .

[0113] like Figure 4 As shown, the magnetic coupling portion 30 of the base occupies the coupling position and is arranged opposite the magnetic coupling portion 60 of the bowl of the food preparation bowl 3 placed on the receiving interface 4 of the electric base 2. Figure 4 In the illustrated configuration, the magnetic coupling portion 30 of the base is coupled to the magnetic coupling portion 60 of the bowl, and the drive motor 21 can reliably and securely drive the rotating member 70 to rotate. It should be noted that there is a gap between the flange of the control component 41 and the first crown 33 to avoid any undue wear or friction.

[0114] It can also be noted that the base's magnetic coupling portion 30, coupled to the bowl's magnetic coupling portion 60, facilitates autonomous and adequate positioning of the food preparation bowl 3 on the motorized base 2, eliminating the need for a centering device or raised indexing device. Consequently, the receiving interface 4 can be a flat surface devoid of any raised elements. Of course, the provision of such raised elements is not excluded, for example, to stop the rotation, provide a positioning aid for the user, or the like.

[0115] As mentioned above, in Figure 4 In the configuration, to remove the food preparation bowl 3 from the electric base 2, it is only necessary to control the clutch motor 43 to rotate the electric component 42 and force the control component 41, and then force the magnetic coupling part 30 of the base to Figure 2 Just move it to the idle position.

[0116] The magnetic coupling portion 30 of the base can be controlled to be in an idle position ( Figure 2 ) and the join position ( Figure 3 or Figure 4 ) to limit the friction between the control component 41 and the first crown 33. However, it is also possible to make the magnetic coupling portion 30 of the base in the idle position ( Figure 2 ) and the join position ( Figure 3 or Figure 4 ) or a contact is provided between the control part 41 and the first crown 33 that is resistant to friction therebetween (a material with a low coefficient of friction, or even a needle stopper for example).

[0117] Industrial Applications

[0118] The food preparation appliance according to the present invention and its manufacture can be used in industrial applications.

[0119] It will be understood that various modifications and / or improvements apparent to those skilled in the art may be made to the various embodiments of the invention described in this specification without departing from the scope of the invention.

Claims

1. An electric base (2) for a food preparation appliance (1), The food preparation appliance (1) comprises the motorized base (2) and at least one food preparation bowl (3), the food preparation bowl being coupled to the motorized base (2) and comprising a rotating member (70) arranged to be driven in rotation by the motorized base (2), The electric base (2) comprises: A housing (10), a drive device (20) having a drive motor (21), the drive device being accommodated in the housing (10), a magnetic coupling portion (30) of the base, the magnetic coupling portion being engaged with the drive motor (21) to be driven in rotation and being movable relative to the housing (10) and the drive motor (21) between an idle position and a coupling position, in which the magnetic coupling portion (30) of the base is arranged to be reversibly coupled to a magnetic coupling portion (60) of the bowl connected to the rotating member (70), A guiding device, wherein the guiding device is configured to guide the magnetic coupling part (30) of the base when the magnetic coupling part (30) of the base moves relative to the driving motor (21), a clutch device (40) arranged to move the magnetic coupling portion (30) of the base between an idle position and a coupled position, It is characterized in that the clutch device (40) comprises at least one control component (41) of the magnetic coupling part (30) of the base, and the control component is at least partially arranged around the magnetic coupling part (30) of the base.

2. The electric base (2) according to claim 1, wherein the control component (41) is capable of translational movement relative to the housing (10).

3. The electric base (2) according to claim 1, wherein the control component (41) is arranged to apply a displacement force parallel to the movement direction of the magnetic coupling part (30) of the base between the coupling position and the idle position.

4. The electric base (2) according to claim 3, wherein the control component (41) is capable of translational movement relative to the housing (10).

5. The electric base (2) according to any one of claims 1 to 4, wherein the clutch device (40) comprises at least one guide column (48) fixed to the housing (10), and wherein the control component (41) is mounted on the at least one guide column (48) in a sliding connection.

6. The electric base (2) according to any one of claims 1 to 4, wherein the clutch device (40) comprises an electric component (42) engaged with the control component (41) according to a screw connection.

7. The motorized base (2) according to claim 6, wherein the motorized component (42) at least partially surrounds the control component (41) and preferably forms an electric crown.

8. The electric base (2) according to claim 6, wherein the electric component (42) is pivotally mounted on the housing (10).

9. A motorised base (2) according to any one of claims 1 to 4, wherein the clutch device (40) comprises a clutch actuator, such as a clutch motor (43), arranged to cause movement of the control component (41) to move the magnetic coupling part (30) of the base between an idle position and a coupled position.

10. The electric base (2) according to claim 9, wherein the clutch device (40) includes an electric component (42) meshed with the control component (41) according to a spiral connection, and the clutch actuator includes a power pinion (44) meshed with the electric component (42).

11. The motorized base (2) according to claim 9, wherein the clutch device (40) comprises at least one end-of-travel sensor (46) which controls the stopping of the clutch actuator once the magnetic coupling part (30) of the base reaches the rest position or the coupled position.

12. The electric base (2) according to any one of claims 1 to 4, wherein the control component (41) is arranged to move the magnetic coupling part (30) of the base from the coupling position to the idle position, preferably, the control component (41) is arranged to only move the magnetic coupling part (30) of the base from the coupling position to the idle position.

13. The electric base (2) according to any one of claims 1 to 4, wherein the clutch device (40) comprises an elastic reset device (45), which is arranged to apply an elastic force to the magnetic coupling part (30) of the base to reset it to the coupling position.

14. The electric base (2) according to any one of claims 1 to 4, wherein the magnetic coupling part (30) of the base comprises at least one first coupling magnet (31), which is arranged at the periphery of the magnetic coupling part (30) of the base.

15. The electric base (2) according to any one of claims 1 to 4, wherein the magnetic coupling part (30) of the base comprises at least one first crown (33) made of magnetic material, the first crown being arranged to guide the coupling magnetic flux of the magnetic coupling part (30) of the base.

16. The motorized base (2) according to any one of claims 1 to 4, wherein the guiding means is formed by a sliding connection arranged between a magnetic coupling part (30) of the base and the drive motor (21).

17. The electric base (2) according to any one of claims 1 to 4, wherein the guiding device comprises: The output shaft (22) of the driving motor (21) or the output sleeve (23) integral with the output shaft (22) comprises a keyway end, A groove hub is coupled to the keyway end of the output shaft (22) or the output sleeve (23) and is integral with the magnetic coupling portion (30) of the base.

18. The power base (2) according to any one of claims 1 to 4, wherein the housing (10) comprises a receiving interface (4) arranged for receiving at least one type of food preparation bowl (3), and wherein the receiving interface (4) excludes and / or is devoid of: Any opening to movable drive parts, and / or Any movable drive parts, and / or Any movable drive projection.

19. The electric base (2) according to any one of claims 1 to 4, comprising a stop device arranged between the housing (10) and the magnetic coupling part (30) of the base when the magnetic coupling part (30) of the base is in the coupled position, and wherein the stop device preferably comprises at least one ball stop or needle stop (34).

20. An electric base (2) according to any one of claims 1 to 4, wherein the clutch device (40) is arranged to generate a gap between the control component (41) and the magnetic coupling part (30) of the base when the magnetic coupling part (30) of the base is in the coupled position, preferably an axial gap relative to the displacement direction of the magnetic coupling part (30) of the base.

21. A food preparation bowl (3) for connection with a motorized base (2) according to any one of claims 1 to 4, said food preparation bowl (3) comprising at least: a base plate (52) and / or a lower plate (53) coupled to the housing (10) of the motorized base (2), Working container (51), a rotating member (70), A magnetic coupling portion (60) of the bowl is connected to the rotating member (70).

22. Food preparation appliance (1) comprising a motorized base (2) according to any one of claims 1 to 4 and a food preparation bowl (3) according to claim 21.

Images