CN116172423B

CN116172423B - Food processor

Info

Publication number: CN116172423B
Application number: CN202211320481.5A
Authority: CN
Inventors: 谭旭; 唐路蒙
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2024-08-23
Anticipated expiration: 2042-10-26
Also published as: CN116172423A

Abstract

The application discloses a cooking machine. The cooking machine comprises a stirring cup assembly and a host machine assembly. The stirring cup assembly comprises a stirring cup and a stirring assembly. The stirring assembly includes a rotating assembly. The rotating assembly includes a driven magnet and a stirring member. The driven magnet is a permanent magnet. The main machine component comprises an electromagnetic driving device, the electromagnetic driving device generates a changing magnetic field under the condition of power on, the magnetic field and the driven magnet are magnetically attracted, so that at least the rotating component is adsorbed to the bottom of the stirring cup under the condition that the electromagnetic driving device is positioned below the stirring cup component, or at least the rotating component is adsorbed to the electromagnetic driving device under the condition that the electromagnetic driving device is positioned above the stirring cup component, and the rotating component rotates in the stirring cup under the action of the magnetic field; the electromagnetic driving device has the advantages that magnetic force between the electromagnetic driving device and the driven magnet disappears under the condition of power failure, and the stirring assembly and the stirring cup can be separated, so that the stirring cup assembly or the stirring cup assembly is convenient to take.

Description

Food processor

Technical Field

The application relates to the technical field of small household appliances, in particular to a cooking machine.

Background

The cooking machine comprises a stirring cup component and a host component. The stirring cup assembly comprises a stirring cup and a stirring assembly detachably assembled on the stirring cup. The host assembly includes a motor. The motor shaft of the motor is connected with a lower clutch. The stirring assembly is connected with an upper clutch. The upper clutch is connected with the lower clutch so that the motor is connected with the stirring assembly, and thus, the motor can rotate to drive the stirring piece of the stirring assembly to rotate, so that food in the stirring cup, such as soybean milk, minced meat and the like, is processed.

In the above-mentioned cooking machine, stirring subassembly is locked in the stirring cup by locking structure under operating condition, and under the condition that needs to wash, makes locking structure is in the unblock state, then dismantle stirring subassembly from the stirring cup and wash.

Therefore, need with locking structure locking in the above-mentioned cooking machine so that stirring subassembly equipment in the stirring cup, with locking structure unblock so that stirring subassembly is dismantled from the stirring cup, this kind of operating mode leads to stirring subassembly inconvenient of taking.

Disclosure of Invention

The application aims to provide a food processor. The stirring assembly of cooking machine is convenient to take.

The application provides a cooking machine. The cooking machine comprises a stirring cup assembly and a main machine assembly, wherein the stirring cup assembly comprises a stirring cup and a stirring assembly, the stirring assembly comprises a rotating assembly, the rotating assembly comprises a driven magnet and a stirring piece, and the driven magnet is a permanent magnet. The main machine assembly comprises an electromagnetic driving device, wherein the electromagnetic driving device generates a changed magnetic field under the condition of power on, the magnetic field and the driven magnet are magnetically attracted, so that at least the rotating assembly is adsorbed to the bottom of the stirring cup under the condition that the electromagnetic driving device is positioned below the stirring cup assembly, or at least the rotating assembly is adsorbed to the electromagnetic driving device under the condition that the electromagnetic driving device is positioned above the stirring cup assembly, and the rotating assembly rotates in the stirring cup under the action of the magnetic field; the electromagnetic driving device and the driven magnet have the magnetic force disappeared under the condition of power failure, and the stirring assembly and the stirring cup are separable.

As described above, since the electromagnetic driving device generates a magnetic field when energized, at least the rotating assembly (the stirring assembly is integrally adsorbed to the bottom of the cup or only the rotating assembly of the stirring assembly) is adsorbed to the bottom of the cup when the electromagnetic driving device is positioned below the stirring cup assembly under the action of the magnetic field, or at least the rotating assembly is adsorbed to the electromagnetic driving device when the electromagnetic driving device is positioned above the stirring cup assembly, and the magnetic field disappears when the electromagnetic driving device is not energized, and the stirring assembly is not subjected to any force and is separable from the stirring cup, thereby having at least the following advantages: 1) The stirring assembly is easy to take: after the magnetic field disappears due to power failure, the stirring assembly can be taken out from the stirring cup, so that the stirring assembly is convenient to take; 2) The stirring cup and the stirring assembly are easy to clean, and the stirring assembly is convenient to clean after being taken out of the stirring cup; for the stirring cup, after the stirring assembly is taken out, the stirring assembly (in a no-blade state if the stirring piece is a stirring blade) and the stirring cup assembly are not provided with charged components, so that the stirring cup is safe to clean and convenient to clean, for example, the charged components are not worried about potential safety hazards caused by water conduction, and the stirring cup can be cleaned by a dish washer; the cleaning safety caused by scratching the hands by the stirring knife is avoided; 3) The stirring cup component is easy to take: the stirring assembly can be adsorbed or separated from the cup bottom by controlling the disappearance of the magnetic field, and the stirring cup assembly can be taken away after the disappearance of the magnetic field, so that the stirring cup assembly is convenient to take; 4) Low noise: the magnetic force separates the empty transmission, and during operation, there is not the contact collision between driven magnet of stirring subassembly and the electromagnetic drive device of host computer subassembly, compares traditional mechanical contact's coupling (through the coupling between upper and lower clutch) transmission, and the noise obtains very big improvement and low noise.

In some embodiments, the driven magnets are annular in shape and the N and S poles alternate; the electromagnetic driving device comprises a plurality of A-phase windings, a plurality of B-phase windings and a plurality of C-phase windings, wherein the A-phase windings, the B-phase windings and the C-phase windings are sequentially circulated and enclosed into a ring shape. The A-phase winding, the B-phase winding and the C-phase winding all comprise iron cores and electromagnetic coils, the iron cores are located in the vertical direction and comprise first end parts located below the driven magnets, and the electromagnetic coils are spirally wound on the iron cores.

According to the arrangement, the driven magnet is combined with the A-phase windings, the B-phase windings and the C-phase windings, so that compared with a conventional wall breaking machine with a motor arranged on a host component, the wall breaking machine has the advantages that the host component does not comprise the motor, a large space is saved, and the height of the host component is greatly reduced; moreover, the structure of the main unit assembly is much simpler, and furthermore, because the main unit assembly does not comprise a motor, no noise is generated by the rotation of the motor (such as noise generated by the friction between the rotation of the motor and the air), and the noise of the main unit assembly is greatly improved. In addition, because the iron core is located vertical direction, solenoid spiral winding in the iron core, like this, electromagnetic drive device with magnetic force between the driven magnet is more stable to, stirring piece can more stable rotation, and stirring subassembly or rotating assembly can more firm adsorb in the bottom of the cup.

In some embodiments, the driven magnets are annular in shape and the N and S poles alternate; the electromagnetic driving device comprises a plurality of A-phase windings, a plurality of B-phase windings and a plurality of C-phase windings, wherein the A-phase windings, the B-phase windings and the C-phase windings circulate in sequence. The phase A winding, the phase B winding and the phase C winding comprise iron cores and electromagnetic coils wound on the iron cores; each iron core is arc-shaped or U-shaped and comprises a first end part positioned below the driven magnet and a second end part far away from the first end part, and all the second end parts are gathered.

As set forth above, this arrangement still allows the host assembly to not include a motor, which has the advantages of saving much space, greatly reducing the height of the host assembly, greatly simplifying the structure of the host assembly, and reducing noise; in addition, because each iron core is arc or U-shaped and the second tip gathers together, like this, the magnetic field utilization is high, and then, driven magnet rotates better, and the space that the winding takes up is little.

In some embodiments, the motion track of the driven magnet forms an annular magnet region, and orthographic projections of the A-phase winding, the B-phase winding and the C-phase winding on a horizontal plane are positioned in the circular winding region, and the winding region and the magnet region are concentric and at least partially overlapped.

As set forth above, the winding region and the magnet region are concentric and at least partially overlap. Therefore, the magnetic fields of the two magnets are better in interaction, and finally, the driven magnet can better drive the rotating assembly to rotate.

In some embodiments, the stirring cup comprises a cup body and a heating plate component serving as a cup bottom; the heating disc assembly comprises a heating piece, the radius of a large circle corresponding to the magnet area is R1, the radius of a circle corresponding to the area surrounded by the heating piece is R2, the radius of a circle corresponding to the winding area is R3, R3 is less than or equal to R1 and less than R2, and the first end and part of the electromagnetic coil extend into the area surrounded by the heating piece.

According to the arrangement, the second end stretches into the area surrounded by the heating piece, the relative positions among the components are limited by combining R3 and R1 and R2, the occupied space of the stirring cup assembly is smaller, the distance between the electromagnetic driving device and the driven magnet is smaller, the magnetic force is larger, the driven magnet can be driven to drive the stirring piece to rotate better, and the electromagnetic driving device and the heating piece are further separated by R3 and R1 and R2, so that demagnetization caused by heat of the heating piece is avoided.

In some embodiments, the blender cup assembly is placed on top of the host assembly such that the electromagnetic drive is located below the blender cup assembly, the rotating assembly includes a magnet housing and a blender shaft, and the driven magnet is secured inside the magnet housing. The stirring shaft is connected with the stirring piece. The stirring assembly includes a stirring bracket that is stationary relative to the stirring cup during rotation of the rotating assembly. The magnet housing is spaced from the cup bottom, the magnet housing is spaced from the stirring support, and the stirring shaft is spaced from the stirring support.

As the setting is above, in the working process of the food processor, the rotating assembly rotates in the stirring cup, the stirring support is static relative to the stirring cup, so that the rotating assembly almost does not have friction or friction rotation with the stirring support and the cup bottom, and therefore, the load and noise are reduced, and the transmission efficiency is improved.

In some embodiments, the rotating assembly includes a bearing; the stirring support comprises a support base and a connecting column, wherein the support base is adsorbed to the cup bottom by magnetic force between the driven magnet and the magnetic field so that the stirring assembly is integrally adsorbed to the cup bottom of the stirring cup. The stirring shaft and the magnet shell form an assembly body, one of the assembly body and the connecting column is fixedly assembled with the inner ring of the bearing, and the other one of the assembly body and the connecting column is fixedly assembled with the outer ring of the bearing so as to realize the interval between the stirring shaft and the stirring bracket.

According to the arrangement, the whole stirring assembly is adsorbed to the cup bottom through the support base, an assembly body is formed by the stirring shaft and the magnet housing, one of the assembly body and the connecting column is fixedly assembled with the inner ring of the bearing, the other assembly body is fixedly assembled with the outer ring of the bearing to realize the interval between the stirring shaft and the stirring support, and therefore the interval is formed between the magnet housing and the cup bottom and between the magnet housing and the stirring support through a simple structure, and the space occupied by the stirring assembly is small on the premise that the load and noise are reduced and the transmission efficiency is improved.

In some embodiments, the outer race of the bearing is assembled with the magnet housing, and the rotating assembly includes a spacer; the partition plate is fixed in the magnet housing and spans the outer ring of the bearing. The inner ring of the bearing and the connecting column are spaced with the partition plate and are positioned below the partition plate, and the stirring shaft and the magnet housing are fixedly assembled and positioned above the partition plate so as to realize the spacing between the stirring shaft and the stirring bracket.

According to the arrangement, the baffle is fixed in the magnet housing and spans the outer ring of the bearing, the bearing and the connecting column are located below the baffle, and the stirring shaft and the magnet housing are fixedly assembled and located above the baffle, so that the baffle separates the stirring shaft from the inner ring of the bearing and the connecting column, the stirring shaft and the stirring bracket are simple in structure, the baffle not only separates the stirring bracket from the stirring shaft, but also plays a role of a clamp spring because the baffle is fixed in the magnet housing to fix the bearing, and the structure of the stirring assembly can be simplified, and the bearing is enabled to rotate more stably.

In some embodiments, the bottom end of the stirring shaft is upstanding from the baffle, and so configured, the baffle can provide support for the stirring shaft, which is advantageous in ensuring concentricity of the stirring shaft to allow stable rotation of the stirring assembly.

In some embodiments, the stirring bracket comprises a cross beam, wherein two ends of the cross beam are provided with assembling parts positioned in the horizontal direction, and the cross beam is detachably assembled with the cup body of the stirring cup through the assembling parts so as to realize the rest; the driven magnet and the magnet housing are positioned below the cross beam to realize the separation of the magnet housing and the stirring bracket; the stirring shaft penetrates through the magnet shell, two ends of the stirring shaft are respectively in rotary connection with the cup bottom and the cross beam, so that only the rotary component in the stirring component is adsorbed to the cup bottom of the stirring cup, and the magnet shell is separated from the cup bottom.

According to the arrangement, the magnetic force generated by the electromagnetic driving device enables the rotating assembly to be adsorbed to the cup bottom and enables the rotating assembly to rotate in the stirring cup, the magnet housing and the driven magnet are located below the cross beam, the cross beam is detachably assembled with the cup body through the assembling part, the stirring shaft is rotationally connected with the cup bottom and the cross beam, only the rotating assembly is adsorbed to the cup bottom of the stirring cup, and the magnet housing and the cup bottom interval, the magnet housing and the stirring bracket interval and the stirring shaft and the stirring bracket interval are combined. In addition, adopting this kind of stirring support, under the condition of pouring food, stirring support also is in assembled state with the stirring cup, and stirring subassembly can not drop from the stirring cup and strengthen the security, and in the embodiment of adsorbing stirring subassembly whole in the bottom of the cup, need set up structure fixed stirring subassembly such as magnetism and inhale the piece in order to avoid pouring food under the condition, stirring subassembly deviate from the stirring cup.

In some embodiments, the cross beam includes a bearing mounting portion including a bearing mounting cavity and a through hole communicating an interior of the bearing mounting cavity and an exterior of the bearing mounting portion; the rotating assembly includes a bearing; the bearing is fastened in the bearing mounting cavity, the top end of the stirring shaft penetrates through the through hole and is fixed with the inner ring of the bearing, and the stirring shaft is spaced from the side wall of the through hole so as to realize the spacing between the stirring shaft and the stirring bracket.

According to the arrangement, the stirring support and the stirring cup are relatively fixed under the working state of the cooking machine due to the detachable assembly, the bearing is combined with the bearing mounting part of the cross beam of the stirring support, and the stirring shaft is separated from the side wall of the through hole so as to realize the separation of the stirring shaft and the stirring support, so that the rotation assembly is more stable in rotation.

In some embodiments, the outer surface of the bearing mount is a spherical cap surface.

As the outer surface is the spherical crown surface, the resistance is small, the stirring efficiency is higher and finer in the food stirring process of the rotating component, and the noise in the working process of the food processor can be reduced.

In some embodiments, the stirring stand comprises two support legs. Each supporting leg is connected to one end of the cross beam and located below the cross beam, and the supporting legs contact the cup bottom and are located between the cup body and the magnet housing.

According to the arrangement, the supporting feet are in contact with the cup bottom, so that the stability of the stirring bracket can be improved, particularly, the supporting feet are in contact with the cup bottom and then are combined with the assembly part of the cross beam and the cup body in a detachable mode (the detachable mode is fixed in the working state and can be detached from the cup body when the cup is not in work), the stability of the stirring bracket can be improved, in addition, the supporting feet are spaced from the cup body, the turbulence effect can be achieved, and food stirring is finer.

In some embodiments, the bottom end of the stirring shaft is connected with an abutting nut, the abutting nut comprises a contact part outer surface in a spherical crown shape, and the bottom end of the stirring shaft is rotationally connected with the cup bottom through the contact part outer surface.

According to the arrangement, the outer surface of the contact part in the spherical crown shape is rotationally connected with the cup bottom, the rolling mode is matched with the rotating assembly to be driven by the electromagnetic driving device, the rotating assembly rotates more smoothly, the transmission efficiency is higher, moreover, the contact of the outer surface of the contact part with the cup bottom is also beneficial to the separation of the magnet shell and the cup bottom, and the friction condition between the magnet shell and the cup bottom is improved.

Drawings

FIG. 1 is a schematic view of a related art mixing cup assembly;

fig. 2 is an exploded view of a first food processor shown according to an embodiment of the present application;

Fig. 3 is a cross-sectional view of the food processor shown in fig. 2 in an exploded state;

Fig. 4 is a cross-sectional view of the food processor shown in fig. 2 in an assembled state;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic diagram of the positional relationship between the first winding and the driven magnet;

Fig. 7 to 10 are schematic views of the rotation of the driven magnet, respectively;

fig. 11 is an exploded view of a second food processor according to an embodiment of the present application;

FIG. 12 is an enlarged view of portion B of FIG. 11;

FIG. 13 is a schematic view of a first stirring assembly according to an embodiment of the present application;

FIG. 14 is a cross-sectional view of the stirring assembly of FIG. 13 in an assembled state;

Fig. 15 is an enlarged view of a portion C in fig. 14;

FIG. 16 is an exploded view of a second stirring assembly according to an embodiment of the present application;

FIG. 17 is a schematic view of a second blender cup assembly including the second blender assembly shown in accordance with embodiments of the present application;

fig. 18 is an enlarged view of a portion D in fig. 17;

fig. 19 is a schematic view showing a positional relationship between a second type of winding and a driven magnet according to an embodiment of the present application;

FIG. 20 is a schematic diagram of a second type of winding shown in accordance with an embodiment of the present application;

Fig. 21 is a perspective view of a third food processor according to an embodiment of the present application;

FIG. 22 is a schematic view of the head of the main frame assembly of the food processor shown in FIG. 21 rotated to another position;

Fig. 23 is an exploded view of the food processor shown in fig. 21.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with aspects of the application as detailed in the accompanying claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

Referring to fig. 1, a mixing cup assembly 10 of the related art includes a mixing cup 1, a mixing assembly 2, a cup holder 8, and a locking member 9. The stirring assembly 2 includes a stirring member (such as a stirring blade). In this embodiment, the stirring cup 1 is in a penetrating shape, and the cup holder 8 is attached to the bottom of the stirring cup 1. The stirring assembly 2 is provided with the cup seat 8, and then is locked by the locking structure between the locking piece 9 and the cup seat 8 (for example, the locking structure is locked by rotating the locking piece 9 towards the first direction), and then the stirring assembly 2 is further locked by pressing the locking piece 9 through the pressing piece 7, so that the stirring piece of the stirring assembly 2 rotates in the stirring cup 1 under the action of the motor; in the case of disassembly, the pressing member 7 is turned in the vertical direction, the locking structure is then brought into the unlocked state (for example, the locking member 9 is rotated in a second direction opposite to the first direction so that the locking structure is brought into the unlocked state), and then the stirring assembly 2 is taken down to clean the stirring assembly 2. Therefore, the above structure causes inconvenience in taking the stirring assembly.

In order to solve the problem that the stirring assembly 2 is inconvenient to take, the embodiment of the application discloses a food processor. The related construction of the food processor is described in detail as follows.

Referring to fig. 2 in combination with fig. 3 and 4, a food processor includes a blender cup assembly 10 and a main machine assembly 20. The stirring cup assembly 10 comprises a stirring cup 1 and a stirring assembly 2. In some embodiments, the blender cup assembly 10 also includes a cup lid assembly 6. The stirring assembly 2 comprises a rotating assembly 21. The rotating assembly 21 includes a driven magnet 211 and a stirrer 212. The driven magnet 211 is a permanent magnet. The host assembly 20 includes an electromagnetic drive 201. The host assembly 20 further includes a base upper housing 209, a base cover 208, a winding support 207, a power strip 2061, and a power strip support 2062. The base upper case 209 and the base cover plate 208 are assembled to form a receiving chamber. The accommodation chamber accommodates the electromagnetic driving device 201, the winding bracket 207, the power supply board 2061, and the power supply board bracket 2062. The electromagnetic driving device 201 generates a variable magnetic field under the condition of electrifying, the magnetic field and the driven magnet 211 are magnetically attracted to enable the stirring assembly 2 to be adsorbed on the cup bottom 11 of the stirring cup 1, and under the action of the magnetic field, the driven magnet 211 drives the stirring piece 212 to synchronously rotate, namely the rotating assembly 21 rotates in the stirring cup 1. The electromagnetic driving device 201 and the driven magnet 211 have no magnetic force, and the stirring assembly 2 and the stirring cup 1 can be separated. Based on the above-mentioned action of the electromagnetic driving device 201, the structure of the electromagnetic driving device 201 is not limited, for example, the driving device 201 can be implemented by adopting a principle similar to a brushless motor, so that the stirring piece 212 of the stirring assembly 2 can be driven to rotate, and the stirring assembly 2 can be adsorbed on the cup bottom 11.

Referring to fig. 17 in conjunction with fig. 1, fig. 17 discloses a second blender cup assembly 10. This blender cup assembly 10 differs from the first blender cup assembly 10 in that: the second blender cup assembly 10 does not attach the blender assembly 2 as a whole to the cup bottom 11, but only attaches the rotator assembly 21 to the cup bottom 11 (as described in detail below). The technical proposal concept is as follows: in the first mixing cup assembly 10, the electromagnetic driving device 201 is configured to integrally adsorb the mixing assembly 2 to the cup bottom 11, and further enable the mixing member 212 of the mixing assembly 2 to rotate, thereby realizing the functions of mixing food materials, such as, for example, the functions of beating soybean milk, mincing meat, etc. That is, the electromagnetic driving means 201 has two functions, and thus, the inventors of the present application have conceived that it is also possible to adsorb only the rotation member 21 of the stirring member 2 to the cup bottom 11, and rotate the rotation member 21 under the action of the magnetic field, while the stirring member 212 belongs to the rotation member 21, so that the stirring member 212 also rotates. The structure of the electromagnetic driving device 201 is not limited to two structures as described later.

As set forth above, since the electromagnetic driving device 201 generates a magnetic field when energized, at least the rotating assembly (the stirring assembly 2 is integrally attached to the cup bottom 11 or only the rotating assembly 21 of the stirring assembly 2 is attached to the cup bottom 11) will be separated from the stirring cup 1 by the magnetic field, and the magnetic field will disappear when de-energized, so that the stirring assembly 2 will not bear any force and can be separated from the stirring cup 1, thereby having at least the following advantages: 1) The stirring assembly 2 is easy to take: after the magnetic field disappears due to power failure, the stirring assembly 2 can be taken out from the stirring cup 1, so that the stirring assembly 2 is convenient to take; 2) Both the stirring cup 1 and the stirring assembly 2 are easy to clean, and the stirring assembly 2 is convenient to clean after being taken out of the stirring cup 1; with respect to the stirring cup 1, after the stirring assembly 2 is taken out, no stirring assembly (no-knife state if the stirring piece 212 is a stirring knife) and no electrified part exist in the stirring cup 1, so that the stirring cup assembly 10 is safe to clean and convenient to clean, for example, no electrified part does not worry about potential safety hazards of water conduction and can be cleaned by a dish washer; the cleaning safety caused by scratching the hands by the stirring knife is avoided; 3) The stirring cup assembly 10 is easy to take: the stirring cup assembly 10 can be taken away after the magnetic field is disappeared, so that the stirring assembly 2 is adsorbed or can be separated from the cup bottom 11, and the taking is convenient; 4) Low noise: the magnetic force separates the transmission, and in operation, there is no contact collision between driven magnet 211 of stirring assembly 2 and electromagnetic drive 201 of main unit assembly 20, compares traditional mechanical contact type coupling (through coupling between upper and lower clutches) transmission, and the noise is improved and the noise is low.

Referring to fig. 6 in combination with fig. 7, 8, 9 and 10, the driven magnets 211 have a plurality of ring-shaped magnets, and the N-poles and the S-poles are alternately arranged. The electromagnetic driving device 201 includes a plurality of a-phase windings, a plurality of B-phase windings and a plurality of C-phase windings, and the a-phase windings, the B-phase windings and the C-phase windings all circle around in a circle in sequence, that is, the number of windings of the electromagnetic driving device 201 is a multiple of 3, and the circle in sequence means that the windings enclose the form of abcapcabc. Each winding includes a core 2011 and a solenoid 2012. Referring to fig. 7 to 10, the control modes of the windings and the electromagnetic driving device 201 and the driven magnet 211 may be the same as those of a brushless dc motor, and for easier understanding, the control modes of the present application are briefly described as follows, comparing fig. 8 and 7, under the control of a central processing unit (MCU), the a-phase winding and the B-phase winding are energized, and the magnetic poles of the electromagnetic coil 2012 rotate by 40 degrees; comparing fig. 9 and 8, the phase a winding and the phase C winding are electrically connected, the magnetic pole of the electromagnetic coil 2012 rotates by 80 °, comparing fig. 10 and 9, the phase b winding and the phase C winding are electrically connected, the magnetic pole of the electromagnetic coil 2012 rotates by 120 °, and the induced magnetic field of the electromagnetic coil 2012 is circulated in this way to generate different phase changes, thereby forming a set of constantly alternating rotating magnetic fields, and the driven magnet 211 adsorbs the stirring assembly 2 or the rotating assembly 21 to the cup bottom 11 under the action of the magnetic field, so that the driven magnet 211 can drive the stirring member 212 to rotate synchronously (of course, rotate together with the related components such as the magnet housing 213 in the embodiment of the application), thereby realizing high-speed whipping.

Referring to fig. 6 in combination with fig. 7 to 10 and fig. 12, the a-phase winding, the B-phase winding and the C-phase winding each include a core 2011 and an electromagnetic coil 2012, and the core 2011 is located in a vertical direction and includes a first end 20111 located below the driven magnet 211. The electromagnetic coil 2012 is spirally (e.g., bottom-up) wound around the core 2011.

As set forth above, the combination of the driven magnet 211 with the plurality of a-phase windings, the plurality of B-phase windings and the C-phase windings saves a large space and greatly reduces the height of the main unit assembly 20 as compared with the conventional wall breaking machine provided with the motor because the main unit assembly 20 does not include the motor; moreover, the structure of the host assembly 20 is also much simpler; since the size of the motor increases the height of the main assembly 20 in the case where the main assembly 20 includes the motor, and at the same time, it is necessary to provide a related structure for accommodating the motor, etc., the structure of the main assembly is relatively complicated and the height is high. Furthermore, because the host assembly does not include a motor, there is no noise caused by the rotation of the motor (e.g., noise caused by friction between the rotation of the motor and air), and the noise of the host assembly is greatly improved. In addition, since the iron core 2011 is located in the vertical direction, the electromagnetic coil 2012 is spirally wound around the iron core 2011, so that the magnetic force between the electromagnetic driving device 201 and the driven magnet 211 is more stable, and the stirring member 212 can rotate more stably, and the stirring assembly 2 or the rotating assembly 21 can be more firmly adsorbed on the cup bottom 11.

Referring to fig. 19 and 20, in the second winding, the driven magnet 211 is looped and has alternating N and S poles. The electromagnetic driving device 201 includes a plurality of a-phase windings, a plurality of B-phase windings, and a plurality of C-phase windings, which circulate in order. The a-phase winding, the B-phase winding, and the C-phase winding each include a core 2011 and an electromagnetic coil 2012 wound around the core 2011. Each of the cores 2011 is curved, such as the core 2011 is curved in a C shape, although in other embodiments, the core may be curved in a U shape. Each core 2011 includes a first end 20111 below the driven magnet 211 and a second end 20112 remote from the first end 20111. In the embodiment of the present application, the second end 20112 is gathered at the same point, and in other embodiments, the second end 20112 may be merely gathered, for example, the end faces of the second end 20112 are gathered and then located on the same plane.

As set forth above, this arrangement still allows the main assembly 20 to include no motor, with the advantages of significant space savings, much reduced height of the main assembly, much simpler structure of the main assembly, and low noise; in addition, since each core 2011 is arc-shaped or U-shaped and the second ends 20112 are gathered together, the magnetic field utilization rate is high, and thus, the driven magnet rotates better, and the space occupied by the windings is small, for example, the height in at least the vertical direction is lower than that of the windings in the vertical direction.

With continued reference to fig. 19, fig. 6, and fig. 5, and fig. 7 to fig. 10, in some embodiments, the motion track of the driven magnet 211 forms a circular magnet area, and the orthographic projections of the a-phase winding, the B-phase winding, and the C-phase winding on the horizontal plane are located in the circular winding area (for example, in the first embodiment, because the windings are located in the vertical direction, the orthographic projection of the windings corresponds to a dot located in the circle, and in the second embodiment, the orthographic projection of the windings corresponds to a radius located in the circle). The winding region and the magnet region are concentric and at least partially overlap, the at least partially overlapping condition being understood by reference to FIG. 5 and by R3R 1.

As set forth above, the winding region and the magnet region are concentric and at least partially overlap. So that the magnetic fields interact better, and finally, the driven magnet 211 can drive the rotating assembly 21 to rotate better.

With continued reference to fig. 5, in some embodiments, the blender cup 1 includes a cup body 12 and a heat generating dish assembly as a cup bottom 11. The hotplate assembly includes a heater 202. The radius of the large circle corresponding to the magnet area is R1. The radius corresponding to the area surrounded by the heating element 202 is R2. The radius of the circle corresponding to the winding area is R3, R3 is less than or equal to R1 and less than R2, and the first end 20111 and part of the electromagnetic coil 2012 extend into the area surrounded by the heating element 202. Although fig. 5 illustrates that the first end 20111 of the first winding and a portion of the electromagnetic coil 2012 extend into the area surrounded by the heating element 202, it will be understood by those skilled in the art that the first end 20111 of the second winding and a portion of the electromagnetic coil 2011 of the second winding may extend into the area surrounded by the heating element 202 as shown in fig. 19 and 20.

In this arrangement, the first end 20111 and a portion of the electromagnetic coil 2012 extend into the area surrounded by the heating element, and the relative positions between the components are defined in combination with R3R 1 < R2, so that the space occupied by the stirring cup assembly is smaller, the distance between the electromagnetic driving device 201 and the driven magnet 211 is closer, the magnetic force is larger, the driven magnet can be better driven to finally drive the stirring element to rotate, and the distance between the electromagnetic driving device 201 and the heating element 202 is further (for example, the distance between the electromagnetic driving device and the heating element 202 is at least twice the wall thickness, wherein the first wall is a side wall of a cavity for installing the heating element 202, and the second wall is a side wall of the cavity for accommodating the winding), so that demagnetization caused by heat of the heating element 202 by the electromagnetic driving device 201 is avoided.

Referring to fig. 3 in combination with fig. 4 and 5, the stirring cup 1 includes a cup body 12, the bottom 11 is a heat conducting plate, and the main unit assembly 20 includes a heating element 202 assembled with the cup body 12 or integrally formed therewith. The heating member 202 is in contact with the heat conductive plate to conduct heat. The heating element 202 is not limited in structure, and may perform a heating function, for example, a heating tube, or a heating plate (for example, a heating plate of an electric cooker), or the like. As for the assembly between the bottom 11 and the body 12, any structure such as screw threads may be adopted, and will not be described again.

As mentioned above, since the bottom 11 is a heat-conducting plate and the heating element 202 is disposed on the main unit assembly 20, the mixing cup assembly 10 is light, and the mixing cup assembly 10 can be easily taken out.

As a variation of the above embodiment, the food processor does not have a heating function, and the stirring cup assembly 10 is made lighter without providing a heating member. In this case, the stirring cup 1 includes a cup body 12, and the bottom 11 is assembled to the cup body 12 or is integrally formed with the cup body 12 without including a heating member.

Referring to fig. 11 and 12 in combination with fig. 17 and 18, as another variation of the above embodiment, the bottom 11 is a heat generating plate, and is assembled with the cup body 12. The cup bottom 11 and the cup body 12 can be assembled through screw threads and other structures, and the details are not repeated. As described above, the bottom 11 is a heat generating plate, so that the food in the stirring cup 1 can be directly heated, and the heating efficiency is high, but the stirring cup assembly 10 is heavier and inconvenient to take compared with the embodiment in which the bottom 11 is a heat conducting plate. In some embodiments, the surface of the hotplate is a non-magnetic or weakly magnetic, paramagnetic material with high thermal conductivity.

Since the stirring assembly 2 of the present application may be integrally attached to the bottom 11 of the stirring cup 1, or only the rotating assembly 21 may be attached to the bottom 11, the structure of the stirring assembly 2 will be described below with reference to the drawings when the stirring assembly 2 is integrally attached to the bottom 11.

In an embodiment of the present application, the rotating assembly 21 includes a magnet housing 213 and a stirring shaft 215, and the driven magnet 211 is fixed to the inside of the magnet housing 213. In some embodiments, the stirring assembly 2 includes a shaft seal 218 for sealing the bearing 214 and a fastening nut 219 for tightening. In fig. 14 and 15, a fastening nut 219 is connected to the stirring shaft 215. In fig. 17 and 18, the fastening nut 219 is connected to the bearing mounting portion 224. The driven magnet 211 is fixed in the magnet housing 213, and the fixed structure is not limited, and in the embodiment of the present application, the magnet housing 213 includes an upper cover 2131 and a lower cover 2132. The upper cap 2131 and the lower cap 2132 are screwed together, thereby forming respective receiving cavities for receiving the driven magnets 211, in which the driven magnets 211 are fixed. The stirring shaft 215 is connected to the stirring member 212 and rotates in synchronization with the magnet housing 213. The stirring assembly 2 comprises a stirring bracket 22 which is stationary relative to the stirring cup 1 during rotation of the rotation assembly 21. The magnet housing 213 is spaced from the cup bottom 11, the magnet housing 213 is spaced from the stirring holder 22, and the stirring shaft 215 is spaced from the stirring holder 22, and the spacing G1 between the magnet housing 213 and the stirring holder 22 and the spacing G2 between the magnet housing 213 and the cup bottom 11 are illustrated in fig. 5 and 12. For more clear visualization, fig. 15 illustrates a gap G1 between the magnet housing 213 and the agitation bracket 22. In the first type stirring assembly 2 shown in fig. 15, the interval G3 between the stirring shaft 215 and the stirring holder 22 is illustrated, and in the second type stirring assembly 2 shown in fig. 17 and 18, it is apparent that the stirring holder 22 is spaced from the magnet housing 213, and the interval between the stirring shaft 215 and the stirring holder 22 is described later, and therefore, only the interval G2 between the magnet housing 213 and the cup bottom 11 is denoted in the drawings. In short, how the intervals are not limited to the embodiments described later. In the embodiment of the present application, the space means that they do not contact each other and thus do not rotate due to friction or the like, and specifically, the magnet housing 213 does not rub against the cup bottom 11, the magnet housing 213 does not rub against the stirring holder 22, and the stirring shaft 215 does not rub against the stirring holder 22.

As set forth above, during operation of the food processor, the rotating assembly 21 rotates within the stirring cup 1 (e.g., about the axis of the stirring cup 1), the stirring bracket 22 is stationary relative to the stirring cup 1, and the gaps G1, G2, and G3 allow for substantially frictionless or frictionless rotation of the rotating assembly 21 with the stirring bracket 22 and the cup bottom 11, thereby reducing load and noise and improving transmission efficiency.

The structure of the stirring assembly 2 is described in detail below in connection with two more specific embodiments.

The structure of the stirring assembly 2 in fig. 3, 4, 5, 11 and 12 is the same as the stirring assembly 2 shown in fig. 13 and 14, and the stirring assembly 2 of the first type is schematically shown, and the whole stirring assembly 2 is adsorbed to the cup bottom 11. The details are as follows:

Referring to fig. 13, 14 and 15 in combination with fig. 5 and 12, the stirring assembly 2 includes a stirring bracket 22 in a state where the stirring assembly 2 is adsorbed to the cup bottom 11. The stirring bracket 22 includes a bracket base 221 and a connection post 222. The stirring holder 22 is attracted to the cup bottom 11 by the magnetic force between the driven magnet 211 and the magnetic field, so that the stirring assembly 2 is attracted to the cup bottom 11 as a whole, and in the embodiment of the present application, the holder base 221 is attracted to the cup bottom 11. During operation of the food processor, the stirring bracket 22 is static relative to the stirring cup 1 due to bearing magnetic force, and the rotating assembly 21 rotates in the stirring cup 1 and further comprises a bearing 214. The magnet housing 213, the bearing 214, the stirring shaft 215, and the driven magnet 211 are rotated in synchronization. The stirring shaft 215 and the magnet housing 213 constitute an assembly, one of the assembly and the connecting post 222 is fixedly assembled with the inner ring of the bearing 214, and the other is fixedly assembled with the outer ring of the bearing 214 to realize the separation of the magnet housing 213 and the stirring bracket 22. The stationary assembly includes: (1) The connecting post 222 and the bearing 214 are fixedly assembled all the time after leaving the factory, and are not detachable even in the case of maintenance and the like; (2) The connecting post 222 is fixedly assembled with the bearing 214 in the working state, and is detachable in other states (such as maintenance and the like). In an embodiment of the present application, for example, in fig. 15 and 14, the connecting post 222 is inserted into the inner ring of the bearing 214 and is restrained by the clip spring 217 to achieve a fixed assembly. In the case where the connection post 222 is fixedly assembled with the inner ring of the bearing 214, the stirring shaft 215 is assembled to the magnet housing 213, and the magnet housing 213 is fixedly assembled with the outer ring of the bearing 214, and in the case where the connection post 222 is connected with the inner ring of the bearing 214, the stirring shaft 215 is fixedly assembled with the outer ring of the bearing. In either connection, in the case where the magnet housing 213 and the stirring shaft 215 constitute an assembly, the stirring shaft 215 and the connecting column 222 may be spaced apart from each other by a rear partition 216, that is, the stirring shaft 215 and the stirring holder 22 may be spaced apart from each other (fig. 15 illustrates a space G3 between the stirring shaft 215 and the connecting column 222). Based on the concept of the present application, how the stirring shaft 215 is spaced from the stirring rack 22 may have various structures, so long as the stirring shaft 215 does not rub against the stirring rack 22 during rotation. Of course, in other embodiments, the assembly of the magnet housing 213 and the stirring shaft 215 may be fixedly assembled with the inner ring of the bearing 214, and the connecting post 222 may be fixedly assembled with the outer ring of the bearing 214 to space the magnet housing 213 from the stirring holder 22.

As described above, the whole stirring assembly 2 is adsorbed to the cup bottom 11 by the support base 221 being adsorbed to the cup bottom 11, and an assembly is formed by the stirring shaft 215 and the magnet housing 213, one of the assembly and the connecting column 222 is fixedly assembled with the inner ring of the bearing 214, and the other is fixedly assembled with the outer ring of the bearing 214 to realize the separation between the magnet housing 213 and the stirring support 22, so that the separation is formed by a simple structure between the magnet housing and the cup bottom and between the magnet housing and the stirring support, and the space occupied by the stirring assembly 2 is small on the premise of reducing the load and noise and improving the transmission efficiency.

The stirring shaft 215 and the connecting post 222 of the stirring bracket 22 have various structures, and as mentioned above, the stirring shaft 215 and the connecting post 222 can be separated from each other so that the rotating assembly 21 does not rub against the stirring bracket 22 during the rotation, and the structure adopted in the present application will be described with reference to the accompanying drawings.

With continued reference to fig. 15 in combination with fig. 14 and 13, the outer race 2141 of the bearing 214 is assembled with the magnet housing 213. The rotating assembly 21 includes a spacer 216. The spacer 216 is fixed within the magnet housing 213 and spans the outer race 2141 of the bearing 214. How the partition 216 is fixed to the magnet housing 213 is a plurality of structures, for example, after the upper cover 2131 and the lower cover 2132 are assembled, the partition 216 and the shaft seal 218 are clamped by the upper cover 2131 and the lower cover 2132 and fixed to the magnet housing 213, and the fixing of the partition 216 is simple. The inner race 2142 of the bearing 214 and the connecting post 222 are both spaced from and below the spacer 216, and the stirring shaft 215 is fixedly assembled with the magnet housing 213 and above the spacer 216 to achieve the spacing of the stirring shaft 215 from the connecting post 222 (i.e., the stirring bracket 22). The stirring shaft 215 is located above the partition 216 and includes: 1) The lower end of the stirring shaft 215 may abut against the baffle 216 as shown, which embodiment has the advantage that: the spacer 216 can provide support for the stirring shaft 215, which is advantageous in ensuring concentricity of the stirring shaft 215 to allow stable rotation of the stirring assembly 2. 2) The stirring shaft 215 is not abutted against the partition 216 but is located above the partition 216.

In the above arrangement, since the baffle plate 216 is fixed in the magnet housing 213 and spans the outer ring 2141 of the bearing 214, the bearing 214 and the connecting post 222 are located below the baffle plate 216, and the stirring shaft 215 is fixedly assembled with the magnet housing 213 and located above the baffle plate 216, the baffle plate 216 separates the stirring shaft 215 from the inner ring of the bearing 214 and the connecting post 222 to realize the separation of the stirring shaft 215 from the connecting post 222 (i.e. the stirring bracket 22) of the stirring bracket 22, so that the structure separating the stirring shaft 215 from the stirring bracket 22 is simple, and the baffle plate 216 not only plays a role of separating the stirring bracket 22 from the stirring shaft 215, but also plays a role of a snap spring because the baffle plate is fixed in the magnet housing 213, so that the structure of the stirring assembly 2 can be simplified, and the rotation of the bearing 214 is more stable.

Referring to fig. 16, 17 and 18, the second type stirring assembly 2 disclosed in fig. 16 to 18 is different from the first type stirring assembly 2 in that: instead of the entire stirring assembly 2 being attached to the bottom 11, only the rotating assembly 21 of the stirring assembly 2 is attached to the bottom 11 of the stirring cup 1. It should be noted that: 1) In this case, the stirring assembly 2 can still be removed with the magnetic force between the electromagnetic driving means and the driven magnet disappeared; 2) In this case, the rotating unit 21 is not limited to the components shown in the drawings, and the rotating unit 21 should be understood as an assembly of components capable of rotating together with the driven magnet 211, and of course, includes the driven magnet 211. The stirring assembly 2 comprises a stirring bracket 22 detachably assembled with the stirring cup 1. The agitation support 22 includes a cross member 223. Both ends of the cross member 223 are provided with assembling portions 2231 positioned in the horizontal direction. The cross member 223 may be detachably assembled with the cup body 12 of the stirring cup 1 through the assembling portion 2231 (the detachable assembly refers to that the cross member and the cup body are relatively fixed in the working state, and other states may be that the cross member and the cup body are detached from the cup body 12) so as to realize that the stirring bracket 22 is static relative to the stirring cup 1, and how the detachable assembly can have various structures, for example, the detachable assembly can be tightly abutted or realized through other structures, so long as the stirring bracket 22 and the cup body 12 (or the stirring cup 1) can not relatively rotate and can move in the vertical direction. The horizontal positioning of the assembly 2231 is not intended to be limited to extending only horizontally, but is named for distinguishing the contact of the support leg 225 with the bottom 11 in the vertical direction, for illustrating the detachable assembly only in the circumferential direction of the stirring cup 1, or by abutting in the circumferential and axial directions as shown. The driven magnet 211 and the magnet housing 213 are positioned below the cross member 223 to achieve a spacing of the magnet housing 213 from the stirring holder 22 (how the stirring holder 22 does not include a support leg 225 or the like as described later, in the case where the stirring holder 22 includes a support leg 225 as described later, the support leg 225 and the cross member 223 are spaced from the magnet housing 213 to achieve a spacing of the stirring holder 22 from the magnet housing 213), the stirring shaft 215 passes through the magnet housing 213, and both ends of the stirring shaft 215 are rotatably connected to the cup bottom 11 and the cross member 223, respectively, whereby only the rotating member 21 in the stirring member 2 is adsorbed to the cup bottom 11 of the stirring cup 1, and the spacing of the magnet housing 213 from the cup bottom 11 is achieved by the rotating connection.

As set forth above, the magnetic force generated by the electromagnetic driving device 201 causes the rotating assembly 21 to be adsorbed to the cup bottom 11 and the rotating assembly 21 to rotate in the stirring cup 1, the magnet housing 213 and the driven magnet 211 are located below the cross member 223, the cross member 223 is detachably assembled with the cup body 12 through the assembling portion 2231, and the stirring shaft 215 is rotatably connected with both the cup bottom 11 and the cross member 223, so that only the rotating assembly 21 in the stirring assembly 2 is adsorbed to the cup bottom 11 of the stirring cup 1, and the magnet housing 213 is spaced from the cup bottom 11, so that the rotating assembly 21 rotates more stably on the premise of ensuring the advantages. In addition, adopting this kind of stirring support, under the condition of pouring food, stirring support also is in assembled state with the stirring cup, and stirring subassembly can not drop from the stirring cup and strengthen the security, and in the embodiment of adsorbing stirring subassembly whole in the bottom of the cup, need set up structure fixed stirring subassembly such as magnetism and inhale the piece in order to avoid pouring food under the condition, stirring subassembly deviate from the stirring cup.

With continued reference to fig. 16, 17 and 18, the cross member 223 includes a bearing mounting portion 224. The bearing mounting part 224 includes a bearing mounting chamber 2241 and a through hole 2242 communicating the inside of the bearing mounting chamber 2241 and the outside of the bearing mounting part 224. The rotating assembly 21 includes a bearing 214. In addition, the rotating assembly 21 further comprises a shaft seal 218 and a snap spring 217. The bearing 214 is secured within the bearing mounting cavity 2241 with various structures, such as a securing nut 219 that is threadably coupled to the cavity wall of the bearing mounting cavity 2241 such that the bearing 214 is secured to the bearing mounting cavity 2241. The top end of the stirring shaft 215 is fixed to the inner ring of the bearing 214 through the through-hole 2242, and the stirring shaft 215 is spaced from the side wall of the through-hole 2242. Of course, the manner in which the bearing 214 is fixed to the bearing mounting portion 224 is not limited to the manner in which the bearing mounting chamber 2241 is provided.

In the above arrangement, the detachable assembly makes the stirring bracket 22 and the stirring cup 1 relatively fixed in the working state of the cooking machine, and the bearing 214 is combined with the bearing mounting portion 224 of the cross beam 223 of the stirring bracket 22, so that the rotation assembly 21 rotates more stably.

With continued reference to fig. 16 and 18 in combination with fig. 17, the outer surface 2243 of the bearing mounting portion 224 is a spherical cap surface.

As the outer surface 2243 is a spherical cap surface, the resistance is small, the stirring efficiency is higher, the stirring is finer and finer, and the noise in the working process of the food processor can be reduced in the food stirring process of the rotating assembly 21.

With continued reference to fig. 16, 17 and 18, the stirring bracket 22 includes two support legs 225 each spaced from the magnet housing. Each of the support legs is connected to one end portion of the cross member 223, and the support leg 225 contacts the bottom 11 and is spaced apart from the cup body 12. How to space various structures, for example, the assembling parts 2231 are arranged at two ends of the cross beam 223, the assembling parts 2231 protrude from the end parts of the cross beam 223 along the horizontal direction to form fastening lugs, the detachable assembly is realized by abutting the assembling parts 2231 against the cup body 12 (the working state is abutted, the abutting enables the stirring bracket 22 to be detached when the disassembly is needed), and the assembling parts 2231 abut against the cup body 12 to fix the stirring bracket 22 to the cup body 12.

As set forth above, the supporting leg 225 contacts the bottom 11, and by means of the supporting action of the supporting leg 225, the stirring support 22 is more easily static relative to the stirring cup 1, so as to improve the stability of the stirring support 22, in particular, the supporting leg 225 contacts the bottom 11 and then is combined with the cross beam 223 to be detachably assembled with the cup body 12, so that the stability of the stirring support 22 is improved, and in addition, the supporting leg 225 is spaced from the cup body 12, so that the stirring effect of the food is more fine and smooth.

With continued reference to fig. 16, 17 and 18, in some embodiments, the support leg 225 includes a connecting arm 2251 connected to the cross member 223 and an abutment arm 2252 in contact with the cup bottom 11, the abutment arm 2252 extending in a circumferential arc of the cup bottom 11.

As set forth above, the abutting arm 2252 contacts with the bottom 11 and extends along the circumferential direction of the bottom 11, and cooperates with the connecting arm 2251, so that the turbulence effect of the stirring bracket 22 is better, and the abutting arm 2252 contacts with the bottom 11 to further improve the stability of the stirring bracket 22.

Referring to fig. 16, 17 and 18, an abutment nut 2151 is connected to the bottom end of the stirring shaft 215, and the abutment nut 2151 includes a spherical-crown-shaped contact portion outer surface 2152. The bottom end of the stirring shaft 215 is rotatably connected with the cup bottom 11 through the contact part outer surface 2152.

As set forth above, the contact portion outer surface 2152 in the shape of a spherical crown is rotationally connected with the cup bottom 11, and this rolling manner cooperates with the rotating assembly 21 to be absorbed and driven by the electromagnetic driving device 201 through magnetic force, so that the rotation is smoother, the transmission efficiency is higher, and the contact of the contact portion outer surface 2152 against the nut 2151 with the cup bottom 11 is also beneficial to the separation between the magnet housing 213 and the cup bottom 11, and the friction between the magnet housing 213 and the cup bottom 11 is improved.

Referring to fig. 21, 22 and 23, in the food processor shown in fig. 2,3 and 4, the mixing cup assembly 10 is placed on top of the main machine assembly 20 such that the electromagnetic driving device 201 is located below the mixing cup assembly 10. In the embodiment shown in fig. 21 to 23, the electromagnetic driving device 201 is located above the stirring cup assembly 10, but at least the rotating assembly 21 is attracted to the electromagnetic driving device 201 under the action of a magnetic field, and only the components on which they are disposed will be described below with reference to fig. 13, 14 and 15.

Referring to fig. 21, 22 and 23, the main frame assembly 20 of the food processor includes a base 203, a support column 204 standing on the base 203, and a handpiece 205 connected to the support column 204 and located above the base 203. The handpiece 205 may be rotatable relative to the support column 204. The stirring cup assembly 10 is placed on the base 203 and comprises a stirring cup 1, a cup cover assembly 6 covered with the stirring cup 1 and a stirring assembly 2. The stirring assembly 2 is arranged on the cup cover assembly 6 and comprises a rotating assembly 21. In the above configuration, the electromagnetic driving device 201 is assembled to the handpiece 205. The driven magnet 211 is assembled to the rotating member 21.

In the above embodiment, in the state that the handpiece 205 rotates to fig. 21, the magnetic field attracts the rotating component 21 so that the rotating component 21 moves toward the handpiece 205 and is attracted to the electromagnetic driving device 201, and thus, the electromagnetic driving device 201 rotates to drive the driven magnet 211 to rotate, and further, drive the rotating component 21 to rotate, so as to process the food material.

Based on the teachings of fig. 21 to 23, particularly the teaching that the handpiece 205 is located above the mixing cup assembly 10, the structure of the food processor may also be a meat grinder, and the arrangement manner of the electromagnetic driving device 201 and the driven magnet 211 may be referred to in fig. 21 to 23, and will not be repeated.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.

Claims

1. A cooking machine is characterized by comprising a stirring cup assembly (10) and a host machine assembly (20), wherein,

The stirring cup assembly (10) comprises a stirring cup (1) and a stirring assembly (2), the stirring assembly (2) comprises a rotating assembly (21), the rotating assembly (21) comprises a driven magnet (211) and a stirring piece (212), and the driven magnet (211) is a permanent magnet;

the main machine assembly (20) comprises an electromagnetic driving device (201), wherein the electromagnetic driving device (201) generates a changing magnetic field under the condition of power on, the magnetic field is magnetically attracted with the driven magnet (211) so that at least the rotating assembly (21) is adsorbed to the cup bottom (11) of the stirring cup (1) under the condition that the electromagnetic driving device (201) is positioned below the stirring cup assembly (10), or at least the rotating assembly (21) is adsorbed to the electromagnetic driving device (201) under the condition that the electromagnetic driving device (201) is positioned above the stirring cup assembly (10);

the rotating assembly (21) rotates in the stirring cup (1) under the action of the magnetic field; the electromagnetic driving device (201) and the driven magnet (211) have no magnetic force when the power is off, and the stirring assembly (2) and the stirring cup (1) are separable;

The electromagnetic drive (201) comprises a plurality of a-phase windings, a plurality of B-phase windings and a plurality of C-phase windings; the motion track of the driven magnet (211) forms an annular magnet area, orthographic projections of the A phase winding, the B phase winding and the C phase winding on a horizontal plane are positioned in the annular winding area, and the winding area and the magnet area are concentric and at least partially overlapped.

2. The food processor according to claim 1, wherein the driven magnet (211) is annular and N-pole and S-pole are alternately arranged; the electromagnetic driving device (201) comprises a plurality of A-phase windings, a plurality of B-phase windings and a plurality of C-phase windings, wherein the A-phase windings, the B-phase windings and the C-phase windings are sequentially and circularly arranged at intervals to form a ring shape;

The A-phase winding, the B-phase winding and the C-phase winding comprise iron cores (2011) and electromagnetic coils (2012), the iron cores (2011) are located in the vertical direction and comprise first end portions (20111) located below the driven magnets (211), and the electromagnetic coils (2012) are spirally wound on the iron cores (2011).

3. The food processor according to claim 1, wherein the driven magnet (211) is annular and N-pole and S-pole are alternately arranged; the electromagnetic driving device (201) comprises a plurality of A-phase windings, a plurality of B-phase windings and a plurality of C-phase windings, wherein the A-phase windings, the B-phase windings and the C-phase windings circulate in sequence;

The A-phase winding, the B-phase winding and the C-phase winding comprise iron cores (2011) and electromagnetic coils (2012) wound on the iron cores (2011); each iron core (2011) is arc-shaped or U-shaped, and comprises a first end (20111) positioned below the driven magnet (211) and a second end (20112) far away from the first end (20111), wherein all the second ends (20112) are gathered.

4. A machine according to claim 2 or 3, characterized in that the stirring cup (1) comprises a cup body (12) and a heating plate assembly as a cup bottom (11); the heating plate assembly comprises a heating element (202), the radius of a large circle corresponding to the magnet area is R1, the radius of a circle corresponding to the area surrounded by the heating element (202) is R2, the radius of a circle corresponding to the winding area is R3, R3 is less than or equal to R1 and less than R2, and the first end part (20111) and part of the electromagnetic coil (2012) extend into the area surrounded by the heating element (202).

5. The food processor according to claim 1, wherein the stirring cup assembly (10) is placed on top of the main machine assembly (20) such that the electromagnetic driving device (201) is located below the stirring cup assembly (10), the rotating assembly (21) comprises a magnet housing (213) and a stirring shaft (215) connected with the stirring piece (212), and the driven magnet (211) is fixed inside the magnet housing (213);

The stirring assembly (2) comprises a stirring bracket (22) which is static relative to the stirring cup (1) during the rotation of the rotation assembly (21), the magnet housing (213) is spaced from the cup bottom (11), the magnet housing (213) is spaced from the stirring bracket (22), and the stirring shaft (215) is spaced from the stirring bracket (22).

6. The food processor according to claim 5, wherein the rotating assembly (21) comprises a bearing (214); the stirring bracket (22) comprises a bracket base (221) and a connecting column (222), wherein the bracket base (221) is adsorbed to the cup bottom (11) by the magnetic force between the driven magnet (211) and the magnetic field, so that the stirring assembly (2) is integrally adsorbed to the cup bottom of the stirring cup (1), and the magnet shell (213) is separated from the cup bottom (11) of the stirring cup (1);

The stirring shaft (215) and the magnet housing (213) form an assembly body, one of the assembly body and the connecting column (222) is fixedly assembled with the inner ring of the bearing (214), and the other is fixedly assembled with the outer ring of the bearing (214) so as to realize the interval between the magnet housing (213) and the stirring bracket (22).

7. The food processor according to claim 6, characterized in that an outer race (2141) of the bearing (214) is assembled with the magnet housing (213); the rotating assembly (21) comprises a baffle (216); the baffle plate (216) is fixed in the magnet housing (213) and spans the outer ring (2141) of the bearing (214);

The inner ring (2142) of the bearing (214) and the connecting column (222) are spaced from the partition plate (216) and are positioned below the partition plate (216), and the stirring shaft (215) is positioned above the partition plate (216) so as to realize the spacing between the stirring shaft (215) and the stirring bracket (22).

8. The food processor according to claim 7, wherein a bottom end of the stirring shaft (215) is erected on the partition plate (216).

9. The food processor according to claim 5, wherein the stirring bracket (22) comprises a cross beam (223), two ends of the cross beam (223) are provided with assembling parts (2231) positioned in the horizontal direction, and the cross beam (223) is detachably assembled with a cup body (12) of the stirring cup (1) through the assembling parts (2231) so as to realize the static state;

-the driven magnet (211) and the magnet housing (213) are located below the cross beam (223) to achieve a spacing of the magnet housing (213) from the stirring bracket (22);

the stirring shaft (215) penetrates through the magnet shell (213), and two ends of the stirring shaft (215) are respectively connected with the cup bottom (11) and the cross beam (223) in a rotating mode, so that only the rotating assembly (21) is adsorbed to the cup bottom (11) of the stirring cup (1).

10. The food processor according to claim 9, wherein the cross beam (223) comprises a bearing mounting portion (224), the bearing mounting portion (224) comprising a bearing mounting cavity (2241) and a through hole (2242) communicating the interior of the bearing mounting cavity (2241) with the exterior of the bearing mounting portion (224);

The rotating assembly (21) comprises a bearing (214); the bearing (214) is fastened in the bearing mounting cavity (2241), the top end of the stirring shaft (215) is fixed with the inner ring (2142) of the bearing (214) through the through hole (2242), and the stirring shaft (215) is spaced from the side wall of the through hole (2242) so as to realize the spacing of the stirring shaft (215) from the stirring bracket (22).

11. The food processor according to claim 10, wherein the outer surface (2243) of the bearing mounting part (224) is a spherical cap surface.

12. The machine according to any one of claims 9 to 11, wherein the stirring rack (22) comprises two support feet (225) each spaced from the magnet housing (213), each support foot (225) being connected to one end of the cross beam (223) and below the cross beam (223), the support feet (225) contacting the cup bottom (11) and being located between the cup body (12) and the magnet housing (213).

13. The food processor according to any one of claims 9 to 11, wherein a bottom end of the stirring shaft (215) is connected with an abutment nut (2151), the abutment nut (2151) comprises a spherical-crown-shaped contact portion outer surface (2152), and the bottom end of the stirring shaft (215) is rotatably connected with the cup bottom (11) through the contact portion outer surface (2152).