Food processor

Abstract

The present application provides a food processor. The food processor includes: a mixing cup assembly, including a mixing cup, a chassis and a knife assembly, wherein the chassis is fixed to the bottom of the mixing cup, and the knife assembly includes a knife shaft passing through the chassis and a blade arranged on the knife shaft; and a main machine, including a housing and a motor, wherein the motor includes a rotor assembly and a stator assembly arranged relatively, wherein the rotor assembly is fixed to the knife shaft, and the stator assembly is assembled in the housing; wherein the main machine also includes a displacement mechanism cooperating with the stator assembly, and by operating the displacement mechanism, the stator assembly can be caused to be displaced relative to the rotor assembly. In this way, the noise and vibration generated when the food processor is working are effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and in particular to a food processor. Background Art

[0002] As people's living standards continue to improve, many different types of food processors have appeared on the market. The functions of a food processor may mainly include, but are not limited to, making soy milk, squeezing juice, mincing meat, shaved ice, making coffee and / or preparing facial masks. Food processors may include machines for crushing ingredients such as soy milk machines, blenders or wall-breaking food processors. Food processors generally have problems with high vibration and noise when working. In order to reduce vibration and noise, an existing solution is to fix the rotor assembly of the motor to the knife shaft, and drive the rotor assembly to rotate through the magnetic force between the rotor assembly and the stator assembly, thereby driving the knife assembly to rotate in the blender cup. However, a food processor with this structure has the problem that the blender cup assembly is difficult to separate from the main unit. Summary of the invention

[0003] The purpose of the present application is to provide a food processor with low vibration and noise, and the mixing cup assembly can be easily removed from the main machine.

[0004] The present application provides a food processor. The food processor includes: a mixing cup assembly, including a mixing cup, a chassis and a knife assembly, wherein the chassis is fixed to the bottom of the mixing cup, and the knife assembly includes a knife shaft passing through the chassis and a blade arranged on the knife shaft; and a main machine, including a housing and a motor, wherein the motor includes a rotor assembly and a stator assembly arranged relatively, wherein the rotor assembly is fixed to the knife shaft, and the stator assembly is assembled in the housing; wherein the main machine also includes a displacement mechanism cooperating with the stator assembly, and by operating the displacement mechanism, the stator assembly can be caused to be displaced relative to the rotor assembly. Since the rotor assembly of the motor is fixed to the knife shaft, and the stator assembly is assembled in the housing, the rotor assembly is driven to rotate by the magnetic force between the stator assembly and the rotor assembly, thereby driving the knife assembly to rotate, so as to achieve the whipping and crushing of the food in the mixing cup. That is to say, the motor of the present application does not need to drive the knife assembly to rotate through the cooperation of the upper clutch and the lower clutch, thereby effectively reducing the noise and vibration generated when the food processor is working; and the main unit also includes a shifting mechanism that cooperates with the stator assembly. By operating the shifting mechanism, the stator assembly can be displaced relative to the rotor assembly, thereby reducing the magnetic force between the stator assembly and the rotor assembly. In this way, the user can easily and labor-savingly remove the blender cup assembly from the main unit, providing a good user experience.

[0005] Furthermore, the shift mechanism includes a pressure rod and a button that cooperates with the pressure rod, the stator assembly is assembled on the pressure rod, and the button pushes the pressure rod to rotate or move, so that the stator assembly can be switched from the working position to the non-working position. In this way, the user only needs to operate the button to make the pressure rod drive the stator assembly to move, thereby switching from the working position to the non-working position, which is easy to operate and simple in structure.

[0006] Furthermore, the main machine includes a first stator bracket, the stator assembly is fixed to the first stator bracket, and the first stator bracket is assembled to the pressure rod through a limiting rod. In this way, the stator assembly can be more conveniently assembled to the pressure rod through the limiting rod.

[0007] Furthermore, the host includes a second stator bracket, the second stator bracket is fixed to the housing, and the second stator bracket is provided with a guide column extending downward, and the first stator bracket is provided with a guide hole axially slidingly matched with the guide column. Through the cooperation of the guide hole and the guide column, the first stator bracket and the stator assembly can move up and down together along the guide column, which plays a role in limiting the first stator bracket and the stator assembly, so that the stator assembly can always be opposite to the rotor assembly without offset.

[0008] Furthermore, the gap between the rotor assembly and the second stator bracket is between 0.5 mm and 1.5 mm. In this way, the rotor assembly is prevented from contacting with the second stator bracket and generating friction when rotating. The magnetic attraction distance between the rotor assembly and the stator assembly is between 1 mm and 4 mm. In this way, magnetic leakage can be reduced and magnetic density can be increased. When the food processor is working, the magnetic force between the rotor assembly and the stator assembly is sufficient to drive the rotor assembly to rotate.

[0009] Furthermore, the guide column sleeve is provided with a first elastic member, and the first elastic member applies an upward elastic force to the first stator bracket. By providing the first elastic member, on the one hand, the first stator bracket can be more stably and reliably fitted with the second stator bracket, and on the other hand, it can play a role of shock absorption.

[0010] Furthermore, the movable gap of the button along the axial direction is larger than the magnetic attraction distance between the rotor assembly and the stator assembly. Thus, by pressing the button, the stator assembly can be caused to have a large displacement, thereby significantly reducing the magnetic force between the rotor assembly and the stator assembly, and the user can remove the blender cup assembly from the main unit with less effort.

[0011] Furthermore, one end of the pressure rod is rotatably connected to the housing via a rotating shaft, and the other end of the pressure rod cooperates with the button. By pressing the button, the pressure rod can rotate downward around the rotating shaft, thereby driving the stator assembly to move downward, thereby reducing the magnetic force between the stator assembly and the rotor assembly.

[0012] Furthermore, the displacement mechanism includes a second elastic member, the second elastic member applies an upward elastic force to the pressure rod, and the second elastic member is located between the rotating shaft and the button. By providing the second elastic member, the pressure rod can be reset upward, and the stator assembly can be moved upward to the working position accordingly; in addition, since the second elastic member is located between the rotating shaft and the button, that is, the distance between the button and the rotating shaft is greater than the distance between the second elastic member and the rotating shaft, when the user presses the button, the downward force applied to the button is smaller than the upward elastic force of the second elastic member on the pressure rod, thereby achieving a labor-saving effect.

[0013] Furthermore, the button comprises a main body and an extension, wherein the main body presses downward against the pressure rod, and the extension passes through the pressure rod. In this way, the button can be stably and reliably matched with the pressure rod, and the structure is simple.

[0014] Furthermore, the shell includes a shell body, a shell bottom cover and a fixed bracket, the fixed bracket is fixed to the shell body or the shell bottom cover, and the pressure rod is rotatably assembled to the fixed bracket through a rotating shaft. In this way, the structure is simple and the assembly is convenient. The rotor assembly includes a frame, a magnetic sheet and a magnetic conductive sheet, the frame includes a plurality of mounting grooves arranged in a radial direction, and the magnetic sheet is arranged in the mounting groove. By arranging the magnetic sheet in the mounting groove, the magnetic sheet can be prevented from falling off during the rotation of the rotor assembly.

[0015] Furthermore, when the displacement mechanism causes the stator assembly to produce a horizontal displacement relative to the rotor assembly, the horizontal displacement produced by the stator assembly is greater than the radius of the rotor assembly. In this way, the magnetic force between the stator assembly and the rotor assembly can be effectively reduced, and the user can easily and labor-savingly remove the blender cup assembly from the main machine, which provides a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows a cross-sectional view of the whole food processor of one embodiment of the present application;

[0017] Figure 2 Shown Figure 1 The enlarged view of point A is shown;

[0018] Figure 3 Shown Figure 1 An exploded perspective view of a food processor shown;

[0019] Figure 4 Shown Figure 3 A perspective exploded view of the main unit shown;

[0020] Figure 5 and Figure 6 Shown Figure 3 The cross-sectional view of the main engine shown in different working states;

[0021] Figure 7 Shown Figure 3 A three-dimensional schematic diagram of a stator assembly, a first stator bracket and a second stator bracket shown;

[0022] Figure 8 Shown Figure 3 An exploded perspective view of the rotor assembly shown;

[0023] Fig. 9 Shown Figure 8 A three-dimensional schematic diagram of the frame shown;

[0024] Fig.10 and Fig.11 Shown are three-dimensional schematic diagrams of the rotor assembly and stator assembly of the present application in different working states. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0026] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which the present invention belongs. The similar words such as "one" or "one" used in this application specification and claims do not indicate a quantitative limitation, but indicate that there is at least one. The similar words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" cover the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. The similar words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "said" and "the" used in this application specification and the attached claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0027] See also Figures 1 to 9The food processor 100 may be a soymilk machine, a juicer, a wall-breaking machine, etc. The food processor 100 includes a blending cup assembly 10 , a main unit 20 , and a cup cover assembly 30 . The blending cup assembly 10 is detachably assembled to the main unit 20 , and the cup cover assembly 30 is covered on the blending cup assembly 10 .

[0028] The mixing cup assembly 10 includes a mixing cup 11, a chassis 12 and a knife assembly 13, wherein the chassis 12 is fixed to the bottom of the mixing cup 11, and the knife assembly 13 includes a knife shaft 131 passing through the chassis 12 and a blade 132 disposed on the knife shaft 131. The mixing cup 11 is used to contain food materials, and the mixing cup 11 includes a cup body 111 and a cup base 112. The knife assembly 13 is used to whip and crush the food materials in the mixing cup 11. In one embodiment, the chassis 12 is provided with a heating element (not shown) for heating the food materials in the mixing cup 11.

[0029] The host 20 includes a housing 21 and a motor 22, wherein the motor 22 includes a rotor assembly 221 and a stator assembly 222 which are arranged opposite to each other, wherein the rotor assembly 221 is fixed to the knife shaft 131, and the stator assembly 222 is assembled in the housing 21. The fixing method between the rotor assembly 221 and the knife shaft 131 includes fasteners such as screws, a turn-lock structure, etc., but is not limited thereto. The rotor assembly 221 is driven to rotate by the magnetic force between the stator assembly 222 and the rotor assembly 221, thereby driving the knife assembly 13 to rotate, so as to achieve whipping and crushing of the food.

[0030] The host 20 further includes a displacement mechanism 23 cooperating with the stator assembly 222. By operating the displacement mechanism 23, the stator assembly 222 can be displaced relative to the rotor assembly 221. The displacement of the stator assembly 222 relative to the rotor assembly 221 includes displacement in the up-down direction, and also includes displacement in the horizontal direction or in the inclined direction.

[0031] Since the rotor assembly 221 of the motor 22 is fixed to the knife shaft 131, and the stator assembly 222 is assembled in the housing 21, the rotor assembly 221 is driven to rotate by the magnetic force between the stator assembly 222 and the rotor assembly 221, and then the knife assembly 13 is driven to rotate, so as to achieve the whipping and crushing of the food in the mixing cup 11. In other words, the motor 22 of the present application does not need to drive the knife assembly to rotate through the cooperation of the upper clutch and the lower clutch, thereby effectively reducing the noise and vibration generated when the food processor 100 is working; and the host 20 also includes a shifting mechanism 23 that cooperates with the stator assembly 222. By operating the shifting mechanism 23, the stator assembly 222 can be displaced relative to the rotor assembly 221, so that the magnetic force between the stator assembly 222 and the rotor assembly 221 becomes smaller, so that the user can easily and labor-savingly remove the mixing cup assembly 10 from the host 20, and the user experience is good.

[0032] In the illustrated embodiment, the shift mechanism 23 includes a pressure rod 231 and a button 232 that cooperates with the pressure rod 231. The stator assembly 222 is assembled on the pressure rod 231. The button 232 pushes the pressure rod 231 to rotate or move, which can cause the stator assembly 222 to switch from the working position to the non-working position. In this way, the user only needs to operate the button 232 to make the pressure rod 231 drive the stator assembly 222 to move, thereby switching from the working position to the non-working position, which is easy to operate and has a simple structure. The "working position" here refers to the position of the designated subassembly 222 when the food processor 100 is working, at which time the magnetic force between the stator assembly 222 and the rotor assembly 221 is sufficient to drive the rotor assembly 221 to rotate. The "non-working position" here refers to the position of the designated subassembly 222 after the food processor 100 stops working and is displaced relative to the rotor assembly 221 under the action of the shift mechanism 23. At this time, the magnetic force between the stator assembly 222 and the rotor assembly 221 becomes smaller or disappears.

[0033] The host 20 includes a first stator bracket 24, the stator assembly 222 is fixed to the first stator bracket 24, and the first stator bracket 24 is assembled to the pressure rod 231 through a limit rod 240. In this way, the stator assembly 222 can be more conveniently assembled to the pressure rod 231 through the limit rod 240. In the illustrated embodiment, the stator assembly 222 and the first stator bracket 24 are assembled together through a screw-on structure, but are not limited thereto. The first stator bracket 24 includes two mounting ears 244, and the two ends of the limit rod 240 are respectively fixed in the mounting holes 245 of the two mounting ears 244.

[0034] The host 20 includes a second stator bracket 25, which is fixed to the housing 21, and is provided with a guide column 251 extending downward, and the first stator bracket 24 is provided with a guide hole 241 axially slidingly matched with the guide column 251. Through the cooperation between the guide hole 241 and the guide column 251, the first stator bracket 24 and the stator assembly 222 can move up and down along the guide column 251 together, which plays a role in limiting the first stator bracket 24 and the stator assembly 222, so that the stator assembly 222 can always be opposite to the rotor assembly 221 without offset.

[0035] The magnetic attraction distance D1 between the rotor assembly 221 and the stator assembly 222 is between 1 mm and 4 mm. The "magnetic attraction distance between the rotor assembly 221 and the stator assembly 222" mentioned here refers to the distance between the rotor assembly 221 and the stator assembly 222 when the food processor 100 is working. In this way, magnetic leakage can be reduced and magnetic density can be improved. When the food processor 100 is working, the magnetic force between the rotor assembly 221 and the stator assembly 222 is sufficient to drive the rotor assembly 221 to rotate. In some embodiments, the magnetic attraction distance D1 between the rotor assembly 221 and the stator assembly 222 can be 1 mm, 2 mm, 3 mm, 4 mm or a value between any two adjacent ones of the above. Preferably, the magnetic attraction distance D1 between the rotor assembly 221 and the stator assembly 222 is between 2 mm and 3 mm.

[0036] The gap D2 between the rotor assembly 221 and the second stator bracket 25 is between 0.5 mm and 1.5 mm. In this way, the rotor assembly 221 is prevented from contacting and generating friction with the second stator bracket 25 when rotating. In some embodiments, the gap D2 between the rotor assembly 221 and the second stator bracket 25 can be 0.5 mm, 1 mm, 1.5 mm, or a value between any two adjacent values ​​above.

[0037] The guide pillar 251 is sleeved with a first elastic member 253, and the first elastic member 253 applies an upward elastic force to the first stator bracket 24. By providing the first elastic member 253, on the one hand, the first stator bracket 24 is more stably and reliably fitted with the second stator bracket 25, and on the other hand, it can play a shock-absorbing role. The first elastic member 253 can be a spring or an elastic rubber member, but is not limited thereto. In the illustrated embodiment, the second stator bracket 25 includes three guide pillars 251, and the three guide pillars 251 are respectively sleeved with the first elastic member 253. In other embodiments, the second stator bracket 25 includes two guide pillars or four guide pillars, but is not limited thereto.

[0038] The movable gap G of the button 232 along the axial direction is greater than the magnetic attraction distance between the rotor assembly 221 and the stator assembly 222. The "movable gap G of the button 232 along the axial direction" mentioned here refers to the gap between the button 232 and the bottom wall of the housing 21. In this way, by pressing the button 232, the stator assembly 222 can be caused to produce a large displacement, thereby significantly reducing the magnetic force between the rotor assembly 221 and the stator assembly 222, and the user can remove the blender cup assembly 10 from the main unit 20 with less effort. Preferably, the movable gap of the button 232 along the axial direction is greater than 8 mm.

[0039] One end of the pressure rod 231 is rotatably connected to the housing 21 via a rotating shaft 233, and the other end of the pressure rod 231 cooperates with the button 232. By pressing the button 232, the pressure rod 231 can rotate downward around the rotating shaft 233, thereby driving the stator assembly 222 to move downward, thereby reducing the magnetic force between the stator assembly 222 and the rotor assembly 221.

[0040] The shift mechanism 23 includes a second elastic member 26, which applies an upward elastic force to the pressure rod 231, and the second elastic member 26 is located between the rotating shaft 233 and the button 232. By providing the second elastic member 26, the pressure rod 231 can be reset upward, and the stator assembly 222 can be moved upward to the working position accordingly; in addition, since the second elastic member 26 is located between the rotating shaft 233 and the button 232, that is, the distance between the button 232 and the rotating shaft 233 is greater than the distance between the second elastic member 26 and the rotating shaft 233, when the user presses the button 232, the downward force applied to the button 232 is smaller than the upward elastic force of the second elastic member 26 on the pressure rod 231, thereby achieving a labor-saving effect.

[0041] The button 232 includes a main body 2321 and an extension 2322. The main body 2321 presses downward on the pressing rod 231, and the extension 2322 penetrates the pressing rod 231. In this way, the button 232 can be stably and reliably matched with the pressing rod 231, and the structure is simple.

[0042] The housing 21 includes a housing body 211, a housing bottom cover 212 and a fixing bracket 213. The fixing bracket 213 is fixed to the housing body 211 or the housing bottom cover 212. The pressure rod 231 is rotatably assembled to the fixing bracket 213 through a rotating shaft 233. During assembly, the stator assembly 222 and the pressure rod 231 are first assembled to the housing body 211, and then the fixing bracket 213 is assembled into the housing body 211, and then the housing bottom cover 212 is fixed to the bottom end of the housing body 211. In this way, the structure is simple and the assembly is convenient. In the illustrated embodiment, the first elastic member 253 and the second elastic member 26 are pressed downward against the fixing bracket 213.

[0043] The rotor assembly 221 includes a frame 2211, a magnetic sheet 2212 and a magnetic conductive sheet 2213. The frame 2211 includes a plurality of mounting grooves 2215 arranged in a radial direction, and the magnetic sheet 2212 is disposed in the mounting grooves 2215. By disposing the magnetic sheet 2212 in the mounting grooves 2215, the magnetic sheet 2212 can be prevented from falling off during the rotation of the rotor assembly 221.

[0044] See also Fig.10 and Fig.11 , Fig.11 Schematic diagram of the stator assembly 222 after horizontal displacement relative to the rotor assembly 221. When the displacement mechanism 23 causes the stator assembly 222 to horizontally displace relative to the rotor assembly 221, the horizontal displacement D generated by the stator assembly 222 is greater than the radius of the rotor assembly 221. In this way, the magnetic force between the stator assembly 222 and the rotor assembly 221 can be effectively reduced, and the user can easily and labor-savingly remove the blender cup assembly 10 from the host 20, with a good user experience. The horizontal displacement generated by the stator assembly 222 can be a linear displacement or an arc displacement.

[0045] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A food processor, characterized in that: It includes: A blending cup assembly (10), comprising a blending cup (11), a bottom plate (12) and a knife assembly (13), wherein the bottom plate (12) is fixed to the bottom of the blending cup (11), and the knife assembly (13) comprises a knife shaft (131) passing through the bottom plate (12) and a blade (132) arranged on the knife shaft (131); and A host (20), comprising a housing (21); A motor (22), the motor (22) comprising a rotor assembly (221) and a stator assembly (222) arranged opposite to each other, the rotor assembly (221) being fixed to the knife shaft (131), and the stator assembly (222) being assembled in the housing (21); The main machine (20) further comprises a displacement mechanism (23) cooperating with the stator assembly (222); by operating the displacement mechanism (23), the stator assembly (222) can be caused to be displaced relative to the rotor assembly (221).

2. The food processor according to claim 1, wherein: The shift mechanism (23) comprises a pressure rod (231) and a button (232) cooperating with the pressure rod (231); the stator assembly (222) is assembled on the pressure rod (231); the button (232) pushes the pressure rod (231) to rotate or move, thereby enabling the stator assembly (222) to switch from a working position to a non-working position.

3. The food processor according to claim 2, wherein: The main machine (20) comprises a first stator bracket (24), the stator assembly (222) is fixed to the first stator bracket (24), and the first stator bracket (24) is assembled to the pressure rod (231) via a limiting rod (240).

4. The food processor according to claim 3, characterized in that: The main machine (20) comprises a second stator bracket (25), the second stator bracket (25) is fixed to the housing (21), and the second stator bracket (25) is provided with a guide column (251) extending downward, and the first stator bracket (24) is provided with a guide hole (241) axially slidingly matched with the guide column (251).

5. The food processor according to claim 4, characterized in that: The magnetic attraction distance between the rotor assembly (221) and the stator assembly (222) is between 1 mm and 4 mm; and / or the gap between the rotor assembly (221) and the second stator bracket (25) is between 0.5 mm and 1.5 mm.

6. The food processor according to claim 4, characterized in that: The guide column (251) is sleeved with a first elastic member (253), and the first elastic member (253) applies an upward elastic force to the first stator bracket (24).

7. The food processor according to claim 2, wherein: The movable gap of the button (232) along the axial direction is greater than the magnetic attraction distance between the rotor component (221) and the stator component (222).

8. The food processor according to claim 2, wherein: One end of the pressure rod (231) is rotatably connected to the housing (21) via a rotating shaft (233), and the other end of the pressure rod (231) cooperates with the button (232).

9. The food processor according to claim 8, characterized in that: The shifting mechanism (23) comprises a second elastic member (26), the second elastic member (26) exerts an upward elastic force on the pressing rod (231), and the second elastic member (26) is located between the rotating shaft (233) and the button (232).

10. The food processor according to claim 2, wherein: The button (232) comprises a main body (2321) and an extension part (2322); the main body (2321) presses downward against the pressure rod (231); and the extension part (2322) passes through the pressure rod (231).

11. The food processor according to claim 2, wherein: The housing (21) comprises a housing body (211), a housing bottom cover (212) and a fixing bracket (213), wherein the fixing bracket (213) is fixed to the housing body (211) or the housing bottom cover (212), and the pressure rod (231) is rotatably assembled to the fixing bracket (213) via a rotating shaft (233); and / or, The rotor assembly (221) comprises a frame (2211), a magnetic sheet (2212) and a magnetic conductive sheet (2213); the frame (2211) comprises a plurality of installation grooves (2215) arranged along a radial direction; the magnetic sheet (2212) is arranged in the installation grooves (2215).

12. The food processor according to claim 1, wherein: When the displacement mechanism (23) causes the stator assembly (222) to generate a horizontal displacement relative to the rotor assembly (221), the horizontal displacement generated by the stator assembly (222) is greater than the radius of the rotor assembly (221).

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