Food processor

Abstract

The application provides a food processor. The food processor comprises a stirring cup assembly including a stirring cup and a bottom plate arranged at the bottom of the stirring cup; and a shaftless motor assembly arranged in the stirring cup, the shaftless motor assembly comprising a ring-shaped motor stator, a ring-shaped motor rotor and a stirring blade, the motor stator has an inner side and an outer side opposite to the inner side, the motor rotor is rotatably arranged at the inner side, the outer side is connected with the bottom plate or the inner wall of the stirring cup, and the stirring blade is fixed to the inner side of the motor rotor. When the shaftless motor assembly is started, the motor rotor drives the stirring blade to rotate at a high speed to generate vortex, so that the food material can pass through the inner side of the motor rotor, and then the stirring blade can beat and crush the food material, and the problem that noise is large due to cavitation caused by high-speed rotation of the stirring blade during work of a conventional food processor can be avoided, and the food processor provided by the application has smaller noise during work.

Description

Technical Field

[0001] This application relates to the field of food processing, and more particularly to a food processor. Background Technology

[0002] With the continuous improvement of people's living standards, many different types of food processors have appeared on the market. The functions of food processors mainly include, but are not limited to, making soy milk, juicing, rice paste, mincing meat, shaved ice, making coffee, and / or preparing face masks. Food processors can include soy milk makers, blenders, or high-speed blenders—machines that pulverize and mix food. However, existing food processors, when operating, create cavities due to the high-speed rotation of the blades, resulting in excessive noise. Utility Model Content

[0003] This application provides a food processor that operates with low noise.

[0004] This application provides a food processor. The food processor includes: a blending cup assembly, comprising a blending cup and a base disposed at the bottom of the blending cup; and a shaftless motor assembly disposed within the blending cup. The shaftless motor assembly includes an annular motor stator, an annular motor rotor, and a mixing blade. The motor stator has an inner side and an outer side opposite to the inner side. The motor rotor is rotatably disposed on the inner side, and the outer side is connected to the base or the inner wall of the blending cup. The mixing blade is fixed to the inner side of the motor rotor. When the shaftless motor assembly is started, the motor rotor drives the mixing blade to rotate at high speed, generating eddies that allow food to pass through the inner side of the motor rotor. This allows the mixing blade to pulverize and grind the food, avoiding the problem of excessive noise caused by cavitation during high-speed rotation of the mixing blade in conventional food processors. The food processor of this application operates with significantly less noise.

[0005] Furthermore, the shaftless motor assembly is disposed on the chassis, and the shaftless motor assembly has a radial side, the angle between the radial side and the chassis ranging from 45 degrees to 90 degrees. In this way, the mixing blade can efficiently agitate and pulverize food ingredients.

[0006] Furthermore, the shaftless motor assembly is disposed on the inner wall of the stirring cup, and the shaftless motor assembly has a radial side, the angle between the radial side and the inner wall of the stirring cup being between 45 degrees and 90 degrees.

[0007] Furthermore, the motor stator includes a stator support and a coil assembly disposed on the stator support, and the motor rotor includes a rotor support and magnetic poles disposed on the rotor support, the magnetic poles corresponding to the coil assembly. When the shaftless motor assembly is started, the coil assembly is energized, and the magnetic force between the coil assembly and the magnetic poles causes the motor rotor to rotate at high speed relative to the motor stator. The motor rotor drives the stirring blade to rotate at high speed, causing the food in the mixing cup to form eddies inside and outside the shaftless motor assembly, so that the stirring blade can agitate and pulverize the food with low noise.

[0008] Furthermore, the stator support is provided with a receiving cavity, and the coil assembly is encapsulated within the receiving cavity. In this way, by encapsulating the coil assembly within the receiving cavity, contact between the food slurry and the coil assembly is prevented.

[0009] Furthermore, the rotor support is provided with a groove, and the magnetic pole is disposed within the groove. In this way, the magnetic pole and the rotor support are assembled into one unit, thereby forming the motor rotor.

[0010] Furthermore, the food processor includes a base, which includes a housing, a control circuit board, and a lower coupler. The lower coupler is electrically connected to the control circuit board. The mixing cup assembly includes an upper coupler electrically connected to the coil assembly, and the upper coupler is connected to the lower coupler. This achieves electrical connection between the shaftless motor assembly and the control circuit board.

[0011] Furthermore, the coil assembly and the upper coupler are electrically connected via wires. The stator support has a connecting portion protruding from the outer side, which is fixed to the inner wall of the base or the mixing cup. The connecting portion also has a through hole through which the wire passes. This achieves an electrical connection between the coil assembly and the upper coupler, and passing the wire through the through hole effectively prevents contact between the wire and the food slurry.

[0012] Furthermore, the chassis or the inner wall of the mixing cup is provided with mounting holes, and the connecting part passes through the mounting holes and is screwed onto the fastener. Thus, by screwing the connecting part onto the fastener, the shaftless motor assembly is fixed to the inner wall of the chassis or the mixing cup.

[0013] Furthermore, a first bearing and a second bearing are provided between the stator support and the rotor support, and the first bearing and the second bearing are spaced apart in the vertical direction. This allows the motor rotor to be rotatably mounted inside the motor stator, while maintaining a stable and reliable structure. Attached Figure Description

[0014] Figure 1 The image shown is a cross-sectional view of the food processor of this application; Figure 2 As shown Figure 1Another cross-sectional view of the food processor shown; Figure 3 As shown Figure 1 An exploded 3D view of the food processor shown. Figure 4 As shown Figure 1 The cross-sectional view of the shaftless motor assembly assembled on the chassis is shown. Figure 5 As shown Figure 1 A three-dimensional schematic diagram of the shaftless motor assembly and chassis shown; Figure 6 As shown Figure 1 An exploded 3D view of the shaftless motor assembly shown. Figure 7 The image shown is a cross-sectional view of another embodiment of the food processor of this application; Figure 8 The image shown is a cross-sectional view of yet another embodiment of the food processor of this application. Detailed Implementation

[0015] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0016] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. The words “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0017] This application provides a food processor 100, which can be a soy milk maker, a high-speed blender, a juicer, etc., and is not limited thereto. The food processor 100 includes a blending cup assembly 40 and a shaftless motor assembly 50.

[0018] Please see Figures 1 to 6 The mixing cup assembly 40 includes a mixing cup 10, a base 20 disposed at the bottom of the mixing cup 10, and a lid 26 covering the mixing cup 10. The mixing cup 10 is used to hold food ingredients. In the illustrated embodiment, the base 20 may be equipped with a heating element 25, a temperature sensor, a thermostat, and a fuse, etc. The heating element 25 is used to heat the food ingredients inside the mixing cup 10. In other embodiments, the base 20 may not be equipped with a heating element.

[0019] In the illustrated embodiment, the stirring cup 10 includes a cup body 11, a locking seat 15, and a cup base 12. The locking seat 15 is locked to the cup body 11 by a snap fastener structure, and the base 20 is clamped between the cup body 11 and the locking seat 15. A sealing ring 13 is provided between the cup body 11 and the base 20.

[0020] A shaftless motor assembly 50 is disposed within the stirring cup 10. The shaftless motor assembly 50 includes an annular motor stator 51, an annular motor rotor 52, and stirring blades 53. The motor stator 51 has an inner side 511 and an outer side 512 opposite to the inner side 511. The motor rotor 52 is rotatably disposed on the inner side 511, and the outer side 512 is connected to the base 20 or the inner wall of the stirring cup 10. The stirring blades 53 are fixed to the inner side of the motor rotor 52. The number of stirring blades 53 can be one, two, or more. In the illustrated embodiment, there are multiple stirring blades 53, and they are evenly arranged along the circumference of the inner side 511.

[0021] When the shaftless motor assembly 50 is started, the motor rotor 52 drives the mixing blade 53 to rotate at high speed to generate eddies, which allows the food to pass through the inside of the motor rotor 52, thereby enabling the mixing blade 53 to beat and crush the food. This avoids the problem of loud noise caused by the high speed of the mixing blade during the operation of conventional food processors. The food processor 100 of this application is quieter when it is working.

[0022] Furthermore, in conventional food processors, the ingredients are pressed against the mixing blades during operation. The motor requires significant torque to start, but less torque is needed after startup. Therefore, to ensure smooth motor startup, the motor needs high power, increasing its cost. In contrast, the food processor of this application has a motor rotor 52 rotatably mounted on the inner side 511 of the motor stator 51, with the mixing blades 53 located inside the motor rotor 52. The ingredients cannot press against the mixing blades 53, thus the shaftless motor assembly 50 does not require greater power to start, thereby reducing costs.

[0023] Furthermore, conventional food processors have baffles on the inner wall of the blending jar to disrupt the movement of ingredients and improve pulverization efficiency. However, these baffles are difficult to clean, and the presence of baffles in the blending jar leads to a high manufacturing defect rate. In contrast, the shaftless motor assembly 50 of this application uses the motor rotor 52 to drive the blending blade 53 to rotate at high speed, generating vortices that efficiently pulverize ingredients. This eliminates the need for baffles on the inner wall of the blending jar 10, making cleaning easier and increasing the manufacturing yield of the blending jar.

[0024] In some embodiments, the shaftless motor assembly 50 is disposed on the chassis 20, and the shaftless motor assembly 50 has a radial side 501, the included angle A between the radial side 501 and the chassis 20 being between 45 degrees and 90 degrees. Thus, the stirring blade 53 can efficiently agitate and pulverize food ingredients.

[0025] In some embodiments, the included angle A between the radial side 501 and the chassis 20 can be 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees, or any value between any two adjacent values ​​mentioned above. See also... Figure 1 The angle between the radial side surface 501 and the chassis 20 is 90 degrees, meaning the radial side surface 501 is perpendicular to the chassis 20. (See also...) Figure 7 The angle between the radial side 501 and the chassis 20 is an acute angle or an obtuse angle.

[0026] Please see Figure 8 The shaftless motor assembly 50 is disposed on the inner wall of the stirring cup 10. The shaftless motor assembly 50 has a radial side 501, and the angle between the radial side 501 and the inner wall of the stirring cup 10 is between 45 degrees and 90 degrees.

[0027] The motor stator 51 includes a stator support 519 and a coil assembly 518 disposed on the stator support 519. The motor rotor 52 includes a rotor support 521 and magnetic poles 522 disposed on the rotor support 521, with the magnetic poles 522 corresponding to the coil assembly 518. When the shaftless motor assembly 50 is started, the coil assembly 518 is energized. The magnetic force between the coil assembly 518 and the magnetic poles 522 causes the motor rotor 52 to rotate at high speed relative to the motor stator 51. The motor rotor 52 drives the stirring blade 53 to rotate at high speed, causing the food in the stirring cup 10 to form eddy currents inside and outside the shaftless motor assembly 50, so that the stirring blade 53 can stir and crush the food with low noise. In the illustrated embodiment, the magnetic poles 522 are permanent magnets. In other embodiments, the magnetic poles 522 can be made of magnetizable materials such as metallic iron or soft magnetic steel.

[0028] The stator support 519 has a receiving cavity 5191, and the coil assembly 518 is encapsulated within the receiving cavity 5191. Thus, by encapsulating the coil assembly 518 within the receiving cavity 5191, contact between the food slurry and the coil assembly 518 is prevented. The stator support 519 can be made of plastic, but is not limited to this.

[0029] The rotor support 521 has a groove 5211, and the magnetic pole 522 is disposed in the groove 5211. This allows the magnetic pole 522 and the rotor support 521 to be assembled as a single unit, thereby forming the motor rotor 20. The stirring blade 53 is fixed to the rotor support 521; specifically, the stirring blade 53 can be fixed to the rotor support 521 by welding, fasteners, or other methods.

[0030] In the illustrated embodiment, the food processor 100 includes a base 60, which includes a housing 61, a control circuit board (not shown), and a lower coupler 62. The lower coupler 62 is electrically connected to the control circuit board. The blending cup assembly 40 includes an upper coupler 44 electrically connected to the coil assembly 518, and the upper coupler 44 is mated with the lower coupler 62. This achieves electrical connection between the shaftless motor assembly 50 and the control circuit board. In another embodiment, the food processor 100 does not include a base, and the control circuit board is directly mounted on the blending cup assembly 40.

[0031] The coil assembly 518 and the upper coupler 44 are electrically connected via a wire 45. The stator support 519 has a connecting portion 514 protruding from the outer side 512. The connecting portion 514 is fixed to the inner wall of the base 20 or the stirring cup 10, and the connecting portion 514 has a through hole 5141 through which the wire 45 passes. This achieves an electrical connection between the coil assembly 518 and the upper coupler 44. Passing the wire through the through hole 5141 effectively prevents the wire 45 from contacting the food slurry. The through hole 5141 communicates with the receiving cavity 5191 of the stator support 519.

[0032] In the illustrated embodiment, the inner wall of the chassis 20 or the mixing cup 10 is provided with a mounting hole 21, and the connecting part 514 passes through the mounting hole 21 and is screwed to the fastener 515. Thus, by screwing the connecting part 514 to the fastener 515, the shaftless motor assembly 50 is fixed to the inner wall of the chassis 20 or the mixing cup 10. In other embodiments, the shaftless motor assembly 50 may also be fixed to the inner wall of the chassis 20 or the mixing cup 10 in other ways, which are not limited here.

[0033] A first bearing 529 and a second bearing 528 are provided between the stator support 519 and the rotor support 521, and the first bearing 529 and the second bearing 528 are spaced apart in the vertical direction. In this way, the motor rotor 52 is rotatably mounted inside the motor stator 51, and the structure is stable and reliable.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A food processor, characterized in that, It includes: The mixing cup assembly (40) includes a mixing cup (10) and a base (20) disposed at the bottom of the mixing cup (10). and A shaftless motor assembly (50) is disposed inside the stirring cup (10). The shaftless motor assembly (50) includes an annular motor stator (51), an annular motor rotor (52), and a stirring blade (53). The motor stator (51) has an inner side (511) and an outer side (512) opposite to the inner side (511). The motor rotor (52) is rotatably disposed on the inner side (511). The outer side (512) is connected to the chassis (20) or the inner wall of the stirring cup (10). The stirring blade (53) is fixed to the inner side of the motor rotor (52).

2. The food processor as described in claim 1, characterized in that: The shaftless motor assembly (50) is disposed on the chassis (20), and the shaftless motor assembly (50) has a radial side (501), the angle between the radial side (501) and the chassis (20) being between 45 degrees and 90 degrees.

3. The food processor as described in claim 1, characterized in that: The shaftless motor assembly (50) is disposed on the inner wall of the stirring cup (10), and the shaftless motor assembly (50) has a radial side (501), the angle between the radial side (501) and the inner wall of the stirring cup (10) is between 45 degrees and 90 degrees.

4. The food processor as described in any one of claims 1 to 3, characterized in that: The motor stator (51) includes a stator support (519) and a coil assembly (518) disposed on the stator support (519). The motor rotor (52) includes a rotor support (521) and magnetic poles (522) disposed on the rotor support (521). The magnetic poles (522) correspond to the coil assembly (518).

5. The food processor as described in claim 4, characterized in that: The stator support (519) is provided with a receiving cavity (5191), and the coil assembly (518) is encapsulated in the receiving cavity (5191).

6. The food processor as described in claim 4, characterized in that: The rotor support (521) is provided with a groove (5211), and the magnetic pole (522) is disposed in the groove (5211).

7. The food processor as described in claim 4, characterized in that: The food processor includes a base (60), which includes a housing (61), a control circuit board, and a lower coupler (62). The lower coupler (62) is electrically connected to the control circuit board. The mixing cup assembly (40) includes an upper coupler (44) electrically connected to the coil assembly (518). The upper coupler (44) is connected to the lower coupler (62).

8. The food processor as described in claim 7, characterized in that: The coil assembly (518) and the upper coupler (44) are electrically connected by a wire (45). The stator support (519) is provided with a connecting part (514) protruding from the outer side (512). The connecting part (514) is fixed to the inner wall of the chassis (20) or the stirring cup (10). The connecting part (514) is provided with a through hole (5141). The wire (45) passes through the through hole (5141).

9. The food processor as described in claim 8, characterized in that: The inner wall of the chassis (20) or the stirring cup (10) is provided with a mounting hole (21), and the connecting part (514) passes through the mounting hole (21) and is screwed to the fastener (515).

10. The food processor as described in claim 4, characterized in that: A first bearing (529) and a second bearing (528) are provided between the stator support (519) and the rotor support (521), and the first bearing (529) and the second bearing (528) are spaced apart in the vertical direction.

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