Food preparation appliance equipped with a hot air cooking system and a stirring paddle

Abstract

The food preparation appliance (1) includes a housing (3); a cooking chamber (5) configured to receive food to be cooked; a lid (6); a control unit (2) configured to control the operation of the food preparation appliance (1) in a hot air cooking mode and a stirring mode; a hot air cooking system (7) including a fan (7.1) configured to generate an airflow and a heating device (7.2) configured to heat an airflow generated by the fan (7.1); a stirring paddle (8) configured to stir food received in the cooking chamber (5); and a drive system (9) including a drive motor (10) and a drive mechanism (11) connected to the drive motor (10), the drive mechanism (11) being configured to rotate the stirring paddle (8) in the stirring mode and to rotate the fan (7).1) in hot air cooking mode. Figure 1.

Description

Title of the invention: Food preparation apparatus equipped with a hot air cooking system and a stirring paddle. Technical field

[0001] The present invention relates generally to a food preparation device for cooking food according to at least one hot air cooking method, such as an electric pressure cooker. State of the art

[0002] In a known manner, a food preparation appliance comprises:

[0003] - a housing comprising a receiving compartment,

[0004] - a cooking vessel disposed in the receiving housing and configured for to receive food to cook,

[0005] - a cover configured to occupy a closed position in which the The lid prevents access to the cooking vessel and has an open position in which the lid allows access to the cooking vessel.

[0006] - a stirring paddle disposed in the cooking vessel and configured to stir food received in the cooking vessel, and

[0007] - a rotational drive device configured to rotate the blade mixing around a blade rotation axis.

[0008] Such a food preparation device makes it possible to ensure that the food received in the cooking tank is stirred before and during cooking.

[0009] However, the number of cooking types, and therefore the number of recipes, that can be made with such a food preparation device is limited. Summary of the invention

[0010] The technical problem underlying the invention therefore consists of providing a food preparation device that is compact and multifunctional, while allowing food to be cooked according to different types of cooking and allowing an increased number of recipes to be made.

[0011] To this end, the present invention relates to a food preparation apparatus comprising:

[0012] - a housing comprising a receiving compartment,

[0013] - a cooking vessel configured to be placed in the receiving housing and to receive food to be cooked,

[0014] - a cover configured to occupy a closed position in which the The lid prevents access to the cooking vessel and has an open position in which the lid allows access to the cooking vessel.

[0015] - a hot air cooking system disposed at least partially in the lid and configured to generate a flow of hot air over food received in the cooking vessel, the hot air cooking system includes a fan configured to generate an airflow and a heating device configured to heat the airflow generated by the fan,

[0016] - a stirring paddle configured to be arranged in the cooking vessel and to stir the food received in the cooking vessel,

[0017] - a control unit configured to control the operation of the food preparation appliance according to at least one hot air cooking mode in which the hot air cooking system is active and one stirring mode in which the stirring paddle is active,

[0018] - a drive system configured to rotate the mixing blade around a blade rotation axis at least when the food preparation appliance is in stirring mode and to drive the fan in rotation around a fan rotation axis at least when the food preparation appliance is in hot air cooking mode, the drive system comprising a drive motor and a drive mechanism rotationally coupled to the drive motor,

[0019] The control unit is configured to control the rotation of the drive motor in a first direction of rotation when the food preparation appliance is in stirring mode and in a second direction of rotation, which is opposite to the first direction of rotation, when the food preparation appliance is in hot air cooking mode, and

[0020] The drive mechanism includes at least one freewheel coupling disposed between the fan and the stirring blade and configured to occupy a coupled state in which the freewheel coupling is able to transmit a rotational motion to the stirring blade and an uncoupled state in which the freewheel coupling is unable to transmit a rotational motion to the stirring blade, the drive system being configured such that the freewheel coupling is in the coupled state when the drive motor is driven in rotation in the first direction of rotation, i.e. when the food preparation appliance is in the stirring mode, and such that the freewheel coupling is in the uncoupled state when the drive motor is driven in rotation in the second direction of rotation, i.e. when the food preparation appliance is in the hot air cooking mode.

[0021] In other words, the freewheel coupling is configured to rotationally couple the stirring blade to the drive motor when the freewheel coupling is in the coupled state, and to rotationally uncouple the stirring blade from the drive motor when the freewheel coupling is in the disengaged state.

[0022] By freewheel coupling is meant a mechanical system capable of momentarily interrupting the rotational drive of a driven element which can nevertheless continue to rotate freely.

[0023] Such a configuration of the food preparation appliance allows several elements, in this case the stirring paddle and the fan, to be rotated by a single drive motor. Thus, the food preparation appliance according to the present invention allows food to be cooked according to a greater number of recipes while remaining compact and of simple design.

[0024] Advantageously, such a configuration of the food preparation appliance allows for one or more hot air cooking phases and one or more stirring phases to be carried out during the same recipe, without needing to open the lid to add or remove the stirring paddle, for example. Thus, the food preparation appliance according to the present invention offers improved ergonomics and prevents the user from interfering with the food being cooked when switching from hot air cooking to stirring mode.

[0025] The food preparation appliance may also have one or more of the following characteristics, which may be taken alone or in combination.

[0026] According to one embodiment of the invention, the drive mechanism is configured to transmit a rotational movement to the fan at least when the drive motor is driven in rotation in the second direction of rotation.

[0027] According to one embodiment of the invention, the freewheel coupling comprises an inner ring fixed in rotation with the drive mechanism, an outer ring fixed in rotation with the stirring blade, and a locking mechanism interposed between the inner ring and the outer ring, the locking mechanism being configured to make the inner ring and the outer ring fixed in rotation when the drive motor is driven in rotation in the first direction of rotation, and to allow a relative rotation of the inner ring with respect to the outer ring when the drive motor is driven in rotation in the second direction of rotation.

[0028] According to one embodiment of the invention, the outer ring is configured to extend at least partially around the inner ring.

[0029] According to one embodiment of the invention, the fan is configured to extend substantially opposite the cooking tank.

[0030] According to one embodiment of the invention, the heating device is an electric heating resistance.

[0031] According to one embodiment of the invention, the heating device is arranged substantially opposite the cooking vessel when the lid is in the position of closing.

[0032] According to one embodiment of the invention, the heating device is attached to the lid.

[0033] According to one embodiment of the invention, the electric cooking appliance includes a heating element configured to heat the cooking tank.

[0034] According to one embodiment of the invention, the control unit is configured to control the heating element and the stirring paddle when the electric cooking appliance is in pressure cooking mode.

[0035] According to one embodiment of the invention, the control unit is configured to operate the drive motor at a first rotational speed when the food preparation appliance is in stirring mode, and to operate the drive motor at a second rotational speed when the food preparation appliance is in hot air cooking mode, the second rotational speed being higher than the first rotational speed. Thus, the drive system is configured such that, when the food preparation appliance is in stirring mode, the blade is driven to rotate at a blade rotational speed, and such that, when the food preparation appliance is in hot air cooking mode, the fan is driven to rotate at a fan rotational speed that is higher than the blade rotational speed.

[0036] According to one embodiment of the invention, the drive motor is a permanent magnet synchronous motor, also known as a brushless DC motor.

[0037] According to one embodiment of the invention, the fan rotation axis coincides with the blade rotation axis when the cover is in the closed position.

[0038] According to one embodiment of the invention, the drive motor is housed at least partly under the cooking tank.

[0039] According to one embodiment of the invention, the drive motor is housed at least partly inside the cover.

[0040] According to one embodiment of the invention, the drive mechanism further comprises a drive shaft which includes a first drive portion configured to be coupled in rotation to the mixing blade and a second drive portion configured to be coupled in rotation to the fan.

[0041] According to one embodiment of the invention, the drive shaft is configured to extend substantially vertically when the food preparation appliance rests on a horizontal surface.

[0042] According to one embodiment of the invention, the drive shaft is configured to extend substantially along a shaft rotation axis which coincides with the fan rotation axis and the blade rotation axis when the cover is in the closed position.

[0043] According to one embodiment of the invention, the food preparation device includes a passage opening into an underside of the lid, the drive shaft extending through the passage opening and protruding from the underside of the lid.

[0044] According to one embodiment of the invention, the drive mechanism extends at least partly into the housing and at least partly into the cover.

[0045] According to one embodiment of the invention, the drive shaft comprises a first drive portion connected to a first right-angle drive device, which is itself connected to a second drive shaft connected to the mixing blade; and a second drive portion connected to a second right-angle drive device, which is itself connected to a third drive shaft connected to the fan. Advantageously, the first right-angle drive device comprises at least one ball joint, and the second right-angle drive device comprises at least one ball joint.

[0046] According to one embodiment of the invention, the drive shaft comprises a lower coupling portion provided on the first drive portion and configured to be located in the cooking vessel, and an upper coupling portion provided on the second drive portion and configured to be located, for example, in the lid. The upper and lower coupling portions are configured to be coupled to each other, and thus to be rotationally fixed, when the lid is in the closed position, and to be rotationally independent when the lid is in the open position.

[0047] According to another embodiment of the invention, the drive mechanism comprises a flexible drive device configured to extend at least into the housing and into the cover.

[0048] According to one embodiment of the invention, the flexible drive device comprises a drive cable extending at least partially inside a flexible sheath, the flexible sheath being configured to allow free rotation of the drive cable. Advantageously, the flexible drive device allows the transmission of rotational motion to the mixing blade and the fan respectively without requiring prior decoupling of the flexible drive device to allow movement of the cover between the closed and open positions.

[0049] According to one embodiment of the invention, the mixing blade is removable.

[0050] According to one embodiment of the invention, the stirring blade comprises a central hub and at least one blade arm configured to stir food received in the cooking tank.

[0051] According to one embodiment of the invention, the central hub houses the freewheel coupling.

[0052] According to one embodiment of the invention, the cooking tank is removable. Such a configuration of the invention allows, for example, the cooking tank to be cleaned outside the housing.

[0053] According to one embodiment of the invention, the opening position of the lid is stable, and the food preparation appliance is configured such that, when the lid occupies the stable opening position, the center of gravity of the food preparation appliance is located in the housing.

[0054] According to one embodiment of the invention, the food preparation device is configured such that, when the cooking bowl is removed from the receiving housing and the lid is in the stable open position, the center of gravity of the food preparation device is located inside the housing.

[0055] According to one embodiment of the invention, the cover is pivotally mounted on the housing around a pivot axis which is substantially horizontal when the housing rests on a horizontal surface.

[0056] According to one embodiment of the invention, the drive mechanism is further configured to transmit a rotational movement to the fan when the drive motor is driven in rotation in the first direction of rotation.

[0057] According to one embodiment of the invention, the drive mechanism further comprises an additional freewheel coupling configured to occupy a coupled state in which the additional freewheel coupling is capable of transmitting a rotational motion to the fan and an uncoupled state in which the additional freewheel coupling is incapable of transmitting a rotational motion to the fan; the drive system being configured such that the additional freewheel coupling is in the coupled state when the drive motor is driven in rotation in the second direction of rotation, and such that the additional freewheel coupling is in the uncoupled state when the drive motor is driven in rotation in the first direction of rotation.The combination of the freewheel coupling and the additional freewheel coupling allows only the stirring blade to rotate when the food preparation appliance is in stirring mode, and only the fan to rotate when the food preparation appliance is in hot air cooking mode.

[0058] Unless otherwise stipulated, the term "substantially" means, in the present document, "exactly or to within 10% or to within 10°". Brief description of the figures

[0059] The present invention will be better understood with the aid of the following description with reference to the accompanying figures, in which identical reference signs correspond to structurally and / or functionally identical or similar elements.

[0060] [Fig-1] is a schematic cross-sectional view of a food preparation device according to a first embodiment of the invention, showing a lid of the food preparation appliance in a closed position;

[0061] [Fig.2] is a schematic cross-sectional view of the food preparation apparatus of [Fig.1] showing the lid in an open position;

[0062] [Fig.3] is a schematic cross-sectional view of a food preparation device according to a second embodiment of the invention;

[0063] [Fig.4] is a schematic cross-sectional view of a food preparation device according to a third embodiment of the invention;

[0064] [Fig.5] is a schematic cross-sectional view of a food preparation device according to a fourth embodiment of the invention. Detailed description

[0065] Figures 1 and 2 represent a food preparation appliance 1, such as an electric hot air cooker or an electric multi-cooker, according to a first embodiment of the invention. The food preparation appliance 1 is configured for cooking food, such as meat, fish, vegetables, or other foods, and includes a control unit 2 configured to control the operation of the food preparation appliance 1 according to at least one hot air cooking mode and one stirring mode, the operation of which will be detailed below.

[0066] The food preparation appliance 1 comprises a housing 3 including a receiving compartment 4, and a cooking tank 5 removably arranged in the receiving compartment 4 and configured to receive food to be cooked.

[0067] The food preparation appliance 1 further comprises a lid 6 configured to occupy a closed position (see Fig. 1) in which the lid 6 prevents access to the cooking vessel 5 and an open position (see Fig. 2) in which the lid 6 allows access to the cooking vessel 5. According to the embodiment of the invention shown in Figures 1 and 2, the lid 6 is pivotally mounted relative to the housing 3 about a pivot axis that is substantially horizontal when the housing 3 rests on a horizontal surface. Fig. 1 shows the food preparation appliance 1 in which the lid 6 occupies a stable open position.

[0068] The food preparation device 1 is more particularly configured such that, when the lid 6 is in the stable open position, the center of gravity of the food preparation device 1 is located in the housing 3. Such a configuration of the invention makes it possible not to equip the housing 3 with at least one stabilizing foot, and therefore to substantially reduce the size of the food preparation device 1 and more particularly its "footprint".

[0069] The food preparation appliance 1 also includes a hot air cooking system 7 disposed at least partially within the lid 6 and configured to generate a flow of hot air over the food received in the cooking chamber 5 when the food preparation appliance 1 is in hot air cooking mode. The hot air cooking system 7 comprises a fan 7.1 configured to generate an airflow and a heating device 7.2 configured to heat the airflow generated by the fan 7.1. According to the embodiment of the invention shown in Figures 1 and 2, the heating device 7.2 is an electric heating element. In order to achieve efficient cooking of the food in the cooking chamber 5, the heating device 7.2 and the fan 7.1 are respectively positioned substantially opposite the cooking chamber 5 when the lid 6 is in the closed position.

[0070] The food preparation appliance 1 further comprises a stirring paddle 8 configured to be disposed in the cooking vessel 5 and to stir food received in the cooking vessel 5 when the food preparation appliance 1 is in stirring mode. Advantageously, the stirring paddle 8 is removable and comprises a central hub 8.1 and at least one paddle arm 8.2 configured to stir food received in the cooking vessel 5.

[0071] The food preparation appliance 1 further includes a drive system 9 comprising a drive motor 10, such as a permanent magnet synchronous motor also known as a brushless DC motor, and a drive mechanism 11 rotationally coupled to the drive motor 10 and configured to rotate the stirring blade 8 around a blade rotation axis A1 and the fan 7.1 around a fan rotation axis A2 which advantageously coincides with the blade rotation axis A1 when the cover 6 is in the closed position.

[0072] Advantageously, the drive mechanism 11 includes a freewheel coupling 12 configured to occupy a coupled state in which the freewheel coupling 12 is capable of transmitting a rotational motion to the stirring paddle 8 (in the stirring mode) and an uncoupled state in which the freewheel coupling 12 is incapable of transmitting a rotational motion to the stirring paddle 8 (in the hot air cooking mode). A freewheel coupling is understood to be a mechanical system capable of momentarily interrupting the rotational drive of a driven organ which can nevertheless continue to rotate freely.

[0073] More specifically, the control unit 2 is configured to control the rotation of the drive motor 10 in a first direction of rotation when the food preparation appliance 1 is in stirring mode and in a second direction of rotation, which is opposite to the first direction of rotation, when the food preparation appliance 1 is in hot air cooking mode. Furthermore, the control unit 2 is configured to control the operation of the drive motor 10 at a first speed when the food preparation appliance 1 is in stirring mode, and to control the operation of the drive motor 10 at a second speed when the food preparation appliance 1 is in hot air cooking mode, the second speed being higher than the first speed.Such a configuration of the food preparation appliance 1 allows several elements, namely the stirring blade 8 and the fan 7.1, to be driven by a single drive motor 10. Thus, the food preparation appliance 1 according to the present invention allows for the cooking of food according to an increased number of recipes while remaining compact and of simple design. Advantageously, the presence of the freewheel coupling 12 allows the rotation of the fan 7.1 and the rotation of the stirring blade 8 to be separated in certain operating modes of the food preparation appliance 1, particularly during hot air cooking.

[0074] In the schematic views shown in Figures 1 and 2, the freewheel coupling 12 comprises an inner ring 12.1 fixed in rotation with the drive mechanism 11, an outer ring 12.2 fixed in rotation with the stirring blade 8, and a locking mechanism 12.3 interposed between the inner ring 12.1 and the outer ring 12.2. The outer ring 12.2 is configured to extend at least partially around the inner ring 12.1, while the interface between the outer ring 12.2 and the inner ring 12.1 is achieved by the locking mechanism 12.3, the function of which is to allow a relative rotation of the inner ring 12.1 with respect to the outer ring 12.2 when the drive motor 10 is driven in rotation in the second direction of rotation and to make the inner ring 12.1 and the outer ring 12.2 rotationally fixed when the drive motor 10 is driven in rotation in the first direction of rotation.

[0075] According to the first embodiment of the invention visible in figures 1 and 2, the drive motor 10 is housed inside the cover 6 (and above the fan 7.1) and the drive mechanism 11 further comprises a drive shaft 13 configured to connect the fan 7.1 and the stirring blade 8.

[0076] More specifically, the drive shaft 13 comprises a first portion A drive portion 13.1 is configured to be rotationally coupled to the inner ring 12.1 of the stirring blade 8, and a second drive portion 13.2 is configured to be rotationally coupled to the fan 7.1. The drive shaft 13 is configured to extend substantially vertically when the food preparation unit 1 rests on a horizontal surface and has a shaft rotation axis A3 that coincides with the fan rotation axis A2 and the blade rotation axis A1. Furthermore, the food preparation unit 1 has a through-hole 6.1 that opens into an underside of the cover 6, such that the drive shaft 13 extends through the through-hole 6.1 and protrudes from the underside of the cover 6.

[0077] In order to allow movement of the lid 6 from the closed position to the open position, the drive shaft 13 has a lower coupling portion 14.1 provided on the first drive portion 13.1 and configured to be located in the cooking vessel 5 and an upper coupling portion 14.2 provided on the second drive portion 13.2 and configured to be located, for example, in the lid 6 or in the cooking vessel 5. The lower coupling portion 14.1 and the upper coupling portion 14.2 are configured to be coupled to each other, and therefore to be rotationally fixed, when the lid 6 is in the closed position and to be rotationally independent when the lid 6 is in the open position.

[0078] Figure 3 represents a food preparation device 1 according to a second embodiment of the invention which differs from the first embodiment essentially in that the drive motor 10 is housed under the cooking tank 5, and more particularly substantially with regard to the freewheel coupling 12. Such a configuration of the invention allows, among other things, modification of the distribution of masses inside the food preparation device 1.

[0079] Figure 4 represents a food preparation appliance 1 according to a third embodiment of the invention, which differs from the first embodiment essentially in that the drive mechanism 11 extends at least partially into the housing 3 and at least partially into the cover 6. More specifically, the drive shaft 13 comprises a first drive portion 13.1 connected to a first right-angle drive 15.1, itself connected to a second drive shaft 13.3 connected to the stirring blade 8; and a second drive portion 13.2 connected to a second right-angle drive 15.2, itself connected to a third drive shaft 13.4 connected to the fan 7.1. Advantageously, the first right-angle drive 15.1 comprises at least one ball joint, and the second right-angle drive 15.2 comprises at least one ball joint.

[0080] Such a configuration of the invention allows the transmission of a rotary motion between the drive motor 10 and respectively the stirring blade 8 and the fan 7.1 without the drive mechanism 11 passing through the cooking tank 5.

[0081] Figure 5 represents a food preparation device 1 according to a fourth mode embodiment of the invention which differs from the third embodiment of [Fig.4] essentially in that the drive motor 10 is provided under the cooking tank 5.

[0082] According to an embodiment of the invention not shown in the figures, the drive mechanism 11 comprises a flexible drive device, which is configured to extend at least partially into the housing 3 and at least partially into the cover 6. The flexible drive device may, for example, comprise a drive cable extending at least partially inside a flexible sheath. The flexible sheath is configured to allow free rotation of the drive cable. Advantageously, the flexible drive device allows the rotational motion to be transmitted respectively to the mixing blade 8 and the fan 7.1 without prior decoupling of the flexible drive device when the cover 6 moves from the closed position to the open position.

[0083] According to another embodiment of the invention not shown in the figures, the drive mechanism 11 further comprises an additional freewheel coupling configured to occupy a coupled state in which the additional freewheel coupling is able to transmit a rotational motion to the fan 7.1 and an uncoupled state in which the additional freewheel coupling is unable to transmit a rotational motion to the fan 7.1.In this configuration of the food preparation appliance 1, the drive system 9 is configured such that the additional freewheel coupling is engaged when the drive motor 10 is rotated in the second direction of rotation, i.e., when the food preparation appliance 1 is in hot air cooking mode, and such that the additional freewheel coupling is disengaged when the drive motor 10 is rotated in the first direction of rotation, i.e., when the food preparation appliance 1 is in stirring mode. The combination of the freewheel coupling 12 and the additional freewheel coupling allows only the stirring blade 8 to rotate when the food preparation appliance 1 is in stirring mode, and only the fan 7 to rotate.1 when the food preparation appliance 1 is in hot air cooking mode.

[0084] Of course, the present invention is in no way limited to the embodiments described and illustrated, which have been given only by way of example. Modifications remain possible, particularly with regard to the construction of the various elements or by substitution of technical equivalents, without departing from the scope of protection. of the invention.

Claims

Demands

1. Food preparation apparatus (1) comprising: - a housing (3) comprising a receiving compartment (4), - a cooking vessel (5) configured to be placed in the receiving compartment (4) and to receive food to be cooked, - a lid (6) configured to occupy a closed position in which the lid (6) prevents access to the cooking vessel (5) and an open position in which the lid (6) allows access to the cooking vessel (5), - a hot air cooking system (7) disposed at least partly in the lid (6) and configured to generate a flow of hot air over food received in the cooking vessel (5), the hot air cooking system (7) comprising a fan (7.1) configured to generate an airflow and a heating device (7.2) configured to heat the airflow generated by the fan (7.1), - a stirring paddle (8) configured to be disposed in the cooking vessel (5) and to stir food received in the cooking vessel (5), - a control unit (2) configured to control the operation of the food preparation appliance (1) according to at least one hot air cooking mode in which the hot air cooking system (7) is active and one stirring mode in which the stirring paddle (8) is active, and - a drive system (9) configured to rotate the stirring blade (8) around a blade rotation axis (A1) at least when the food preparation appliance (1) is in stirring mode and to rotate the fan (7.1) around a fan rotation axis (A2) at least when the food preparation appliance (1) is in hot air cooking mode, the drive system (9) comprising a drive motor (10) and a drive mechanism (11) rotationally coupled to the drive motor (10), the control unit (2) configured to control a rotational drive of the drive motor (10) in a first direction of rotation when the food preparation appliance (1) is in stirring mode and in a second direction of rotation, which is opposite to the first direction of rotation, when the food preparation appliance (1) is in hot air cooking mode (1) is in hot air cooking mode, and the drive mechanism (11) includes a freewheel coupling (12) disposed between the fan (7.1) and the stirring blade (8) and configured to occupy a coupled state in which the freewheel coupling (12) is able to transmit a rotational motion to the stirring blade (8) and an uncoupled state in which the freewheel coupling (12) is unable to transmit a rotational motion to the stirring blade (8), the drive system (9) being configured such that the freewheel coupling (12) is in the coupled state when the drive motor (10) is driven in rotation in the first direction of rotation, and such that the freewheel coupling (12) is in the uncoupled state when the drive motor (10) is driven in rotation in the second direction of rotation.

2. Food preparation apparatus (1) according to claim 1, wherein the freewheel coupling (12) has an inner ring (12.1) rotationally fixed with the drive mechanism (11), an outer ring (12.2) rotationally fixed with the stirring paddle (8), and a locking mechanism (12.3) interposed between the inner ring (12.1) and the outer ring (12.2), the locking mechanism (12.3) being configured to make the inner ring (12.1) and the outer ring (12.2) rotationally fixed when the drive motor (10) is driven in rotation in the first direction of rotation, and to permit relative rotation of the inner ring (12.1) with respect to the outer ring (12.2) when the drive motor (10) is driven in rotation in the second direction of rotation.

3. Food preparation appliance (1) according to claim 1 or 2, wherein the control unit (2) is configured to control the operation of the drive motor (10) at a first speed of rotation when the food preparation appliance (1) is in the stirring mode, and to control the operation of the drive motor (10) at a second speed of rotation when the food preparation appliance (1) is in the hot air cooking mode, the second speed of rotation being greater than the first speed of rotation.

4. Food preparation apparatus (1) according to any one of claims 1 to 3, wherein the drive motor (10) is a permanent magnet synchronous motor.

5. Food preparation apparatus (1) according to any one of the claims indications 1 to 4, in which the fan rotation axis (A2) coincides with the blade rotation axis (Al).

6. Food preparation apparatus (1) according to any one of claims 1 to 5, wherein the drive motor (10) is housed at least partly under the cooking vessel (5).

7. Food preparation apparatus (1) according to any one of claims 1 to 5, wherein the drive motor (10) is housed at least partly inside the cover (6).

8. Food preparation apparatus (1) according to claim 6 or claim 7, wherein the drive mechanism (11) further comprises a drive shaft (13) which comprises a first drive portion (13.1) configured to be rotationally coupled to the stirring blade (8) and a second drive portion (13.2) configured to be rotationally coupled to the fan (7.1).

9. Food preparation apparatus (1) according to claim 8, wherein the drive shaft (13) is configured to extend substantially along a shaft rotation axis (A3) which coincides with the fan rotation axis (A2) and the blade rotation axis (A1) when the cover (6) is in the closed position.

10. Food preparation apparatus (1) according to any one of claims 1 to 7, wherein the drive mechanism (11) extends at least partly into the housing (3) and at least partly into the cover (6).

11. Food preparation apparatus (1) according to claim 10, wherein the drive mechanism (11) further comprises a drive shaft (13) which comprises a first drive portion (13.1) connected to a first angle gearbox (15.1) itself connected to a second drive shaft (13.3) connected to the stirring blade (8); and a second drive portion (13.2) connected to a second angle gearbox (15.2) itself connected to a third drive shaft (13.4) connected to the fan (7.1).

12. Food preparation apparatus (1) according to claim 13, wherein the opening position of the lid (6) is stable, and wherein the food preparation apparatus (1) is configured such that, when the lid (6) is in the stable opening position, the center of gravity of the food preparation apparatus (1) is located in the housing (3).

13. Food preparation apparatus (1) according to any one of the claims preceding indications, in which the drive mechanism (11) further comprises an additional freewheel coupling configured to occupy a coupled state in which the additional freewheel coupling is capable of transmitting a rotational motion to the fan (7.1) and an uncoupled state in which the additional freewheel coupling is incapable of transmitting a rotational motion to the fan (7.1), the drive system (9) being configured such that the additional freewheel coupling is in the coupled state when the drive motor (10) is driven in rotation in the second direction of rotation, and such that the additional freewheel coupling is in the uncoupled state when the drive motor (10) is driven in rotation in the first direction of rotation.

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