CN108309091B

CN108309091B - Food processor

Info

Publication number: CN108309091B
Application number: CN201710041699.XA
Authority: CN
Inventors: 梅长云; 常见虎; 潘典国; 伍世润
Original assignee: Midea Group Co Ltd; Guangdong Midea Life Electric Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Life Electric Manufacturing Co Ltd
Priority date: 2017-01-18
Filing date: 2017-01-18
Publication date: 2021-04-27
Anticipated expiration: 2037-01-18
Also published as: CN108309091A

Abstract

The invention discloses a food processor, which comprises a base, wherein the base comprises a shell, a motor, an inner shell and a fan, wherein the motor, the inner shell and the fan are accommodated in the shell; the shell is provided with an air outlet; the motor comprises a rotor and a stator sleeved outside the rotor, and a gap is formed between the inner wall of the stator and the outer wall of the rotor; a cavity channel is formed in the inner shell, one end of the inner shell is connected with the stator in a sealing mode, the other end of the inner shell abuts against the machine shell and covers the outer side of the air outlet, a gap between the stator and the rotor is communicated with the cavity channel of the inner shell to form an air outlet channel, and the air outlet channel is communicated with the air outlet; the fan is accommodated in the cavity of the inner shell and arranged close to the air outlet. The food processor has the advantages of high air volume utilization rate, good heat dissipation effect and low noise in the heat dissipation process.

Description

Food processor

Technical Field

The invention relates to the technical field of household appliances, in particular to a food processor.

Background

The food processor comprises a plurality of machines which drive the stirring knife to crush and extrude food through a motor. Taking the wall breaking food processor as an example, the rotating speed of the motor can reach more than 25000 r/min, so that the stirring cutter driven by the motor can instantaneously break the cell walls of the vegetables and fruits, can effectively extract phytochemicals, and is a preferred household appliance product for modern home health care and health preservation.

Food processor is at its motor drive stirring sword high-speed rotatory in-process, and food processor can produce more heat, and the design of the heat dissipation wind channel in the current food processor is relatively poor for blast volume utilization ratio is low among the cooking machine heat dissipation process, and it is not good to lead to the radiating effect of key parts such as motor.

Disclosure of Invention

The invention mainly aims to provide a food processor, aiming at improving the utilization rate of air volume in a heat dissipation air duct of the food processor and improving the heat dissipation effect of the food processor.

In order to achieve the purpose, the food processor provided by the invention comprises a base, wherein the base comprises a shell, a motor, an inner shell and a fan, wherein the motor, the inner shell and the fan are accommodated in the shell; the shell is provided with an air outlet; the motor comprises a rotor and a stator sleeved outside the rotor, and a gap is formed between the inner wall of the stator and the outer wall of the rotor; a cavity channel is formed in the inner shell, one end of the inner shell is connected to the stator in a sealing mode, the other end of the inner shell abuts against the machine shell and covers the outer side of the air outlet, a gap between the stator and the rotor is communicated with the cavity channel of the inner shell to form an air outlet channel, and the air outlet channel is communicated with the air outlet; the fan is accommodated in the cavity of the inner shell and arranged close to the air outlet.

Preferably, the casing is further provided with an air inlet, an air inlet channel is formed in a gap between the outer walls of the inner casing and the stator and the inner wall of the casing, and the air inlet channel is communicated with the air outlet channel and the air inlet.

Preferably, the fan is an axial flow fan, and the fan is connected with an output shaft at the lower end of the rotor.

Preferably, one end of the inner shell, which is close to the air outlet, is matched with the machine shell to form a silencing cavity, the silencing cavity is communicated with the air outlet channel and the air outlet, and the fan is located in the silencing cavity.

Preferably, the central axes of the air outlet channel, the motor, the fan, the air outlet and the sound attenuation cavity are coincident.

Preferably, the inner shell comprises an air duct and a volute which are communicated, one end of the air duct is sleeved at one end of the volute, the other end of the air duct is fixedly connected with the stator, and the other end of the volute is abutted to the casing.

Preferably, the volute comprises a connecting cylinder and a silencing cover which are communicated, the connecting cylinder partially extends into the air guide cylinder, the lower end of the silencing cover is covered on the outer side of the air outlet, and the diameter of an inner cavity of the silencing cover is larger than that of the inner cavity of the connecting cylinder.

Preferably, the fan blades of the fan are located within the height range of the connecting cylinder.

Preferably, the inner wall of the silencing cover is provided with a noise reduction material layer.

Preferably, the casing includes a casing and a bottom cover covering the lower end of the casing, the volute and the bottom cover enclose the muffling cavity, the central area of the bottom cover is provided with a plurality of air outlets, the edge of the bottom cover is provided with the air inlet, the plurality of air outlets are annularly arranged and spaced, and the annular center of circle is located on the rotation axis of the fan.

Preferably, an annular protrusion is convexly arranged on the surface of the bottom cover facing the volute, the annular protrusion is surrounded to form a sound reflection groove, and the annular protrusion is located on the inner side of the plurality of annularly arranged air outlets and below the fan.

Preferably, the bottom cover is provided with a plurality of air outlets, the surface of the bottom cover facing the volute is also convexly provided with a clamping ring, the clamping ring is positioned at the outer sides of the plurality of air outlets and is partially positioned between the air inlet and the air outlet, and the lower end of the silencing cover is sleeved at the outer sides of the clamping ring.

Preferably, the food processor further comprises a stirring cup assembly arranged at the upper end of the base, the stirring cup assembly comprises a stirring cup, a heating device is arranged at the bottom of the stirring cup, and the heating device comprises a heat conduction plate arranged at the bottom of the stirring cup and an electric heating tube or an electric heating film arranged at the bottom of the heat conduction plate; or the heating device comprises a magnetic conduction disc and a coil disc which are arranged at the bottom of the stirring cup, and the coil disc is positioned below the magnetic conduction disc and is opposite to the magnetic conduction disc.

Preferably, the stirring cup assembly further comprises a stirring knife assembly partially located in the stirring cup, the stirring knife assembly comprises a knife holder fixed on the heat conducting disc or the heat conducting disc and a stirring knife mounted on the knife holder, and a knife shaft of the stirring knife is connected with an output shaft at the upper end of the rotor.

Preferably, the food processor includes broken wall cooking machine, juice extractor, soybean milk machine and mixer.

The technical proposal of the invention is that the inner shell is connected with the stator of the motor in the food processor, the cavity channel inside the inner shell is communicated with the gap between the stator and the rotor in the motor to form the air outlet channel, and the fan is accommodated in the cavity channel of the inner shell and is arranged close to the air outlet, so that when the food processor is driven by the fan and radiating air flows through the air outlet channel and is discharged from the air outlet, a large amount of air passes through the inner surface of the stator of the motor and the outer surface of the rotor of the motor to rapidly discharge a large amount of heat generated by the motor out of the machine base, because the food processor takes the gap between the stator and the rotor in the motor as a part of the air outlet channel, the area of the air channel is reduced, the utilization rate of air volume is improved, the radiating efficiency of the food processor is also improved, and simultaneously, because the utilization rate of air volume in the, the power of the fan for driving the air to flow can be correspondingly reduced, the diameter of the fan can also be reduced, the cost of the food processor can be reduced, and the wind noise generated in the running process of the fan can also be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a food processor according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the food processor of FIG. 1;

FIG. 3 is a schematic view of the bottom cover of the food processor of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the base of the food processor of FIG. 1;

fig. 5 is an enlarged schematic view of a portion a of fig. 4.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a food processor 100.

Referring to fig. 1 to 3, the food processor 100 of the present embodiment is composed of a base 10 disposed below and a stirring cup assembly 30 disposed above the base 10, wherein the stirring cup assembly 30 includes a stirring cup 31, a heating device disposed at a lower end of the stirring cup 31, and a stirring blade assembly (not labeled) mounted on the heating device and partially disposed in the stirring cup 31, wherein an output shaft motor 15 at an upper end of a motor 15 in the base 10 drives a stirring blade 37 to rotate at a high speed, so as to break cell walls of fruit and vegetable food materials and obtain fine fluid food materials.

The base 10 includes a housing 11, a motor 15 accommodated in the housing 11, an inner casing 13, and a fan 17, wherein the housing 11 is provided with an air outlet 14, the motor 15 includes a rotor 151 and a stator 153 sleeved outside the rotor 151, a gap is formed between an inner wall of the stator 153 and an outer wall of the rotor 151, a cavity (not labeled) is formed in the inner casing 13, one end of the inner casing 13 is hermetically connected to the stator 153, the other end of the inner casing 13 abuts against the housing 11 and covers the outer side of the air outlet 14, the gap between the stator 153 and the rotor 151 is communicated with the cavity of the inner casing 13 to form an air outlet channel 18 communicated with the air outlet 14, and the fan 17 is accommodated in the inner casing 13 and disposed near the air.

In this embodiment, the motor 15 and the inner housing 13 are arranged up and down in the base 10, the upper end of the inner housing 13 and the lower end of the stator 153 are fixedly connected in a sleeved manner, welding, gluing and other manners, the cavity in the motor 15 and the cavity channel of the inner housing 13 are communicated to form an air outlet channel 18 communicated with the air outlet 14, in the operation process of the food processor 100, air entering the casing 11 is discharged from the upper end of the motor 15, namely, the upper end of the gap formed between the stator 153 and the rotor 151 enters, and the air outlet 14 runs from top to bottom to discharge a large amount of heat generated in the operation process of the motor 15. In the technical scheme of the invention, the inner shell 13 is connected with the stator 153 of the motor 15 in the food processor 100, the cavity channel of the inner shell 13 is communicated with the gap between the stator 153 and the rotor 151 in the motor 15 to form the air outlet channel 18, and the fan 17 is accommodated in the inner shell 13 and is arranged close to the air outlet 14, so that when the food processor 100 is driven by the fan 17 and radiating air is exhausted from the air outlet 14 through the air outlet channel 18, a large amount of air passes through the inner surface of the stator 153 and the outer surface of the rotor 151 of the motor 15, and a large amount of heat generated by the motor 15 is rapidly exhausted out of the machine base 10, because the gap between the stator 153 and the rotor 151 in the motor 15 is used as a part of the radiating air channel by the food processor 100, the area of the air channel is reduced, the air volume utilization rate is improved, the radiating efficiency of the food processor 100 is also improved, and simultaneously because the air volume utilization rate in the radiating process, the power of the fan 17 driving the air flow can be reduced correspondingly, the diameter of the fan 17 can be reduced, the cost of the food processor 100 can be reduced, and on the other hand, the wind noise generated during the operation of the fan 17 can be reduced.

In this embodiment, the casing 11 is provided with an air inlet 12, an air inlet channel 16 is formed in a gap between outer walls of the inner casing 13 and the stator 153 and an inner wall of the casing 11, and the air inlet channel 16 communicates the air outlet channel 18 and the air inlet 12.

It can be understood that, the base 10 of the food processor 100 further includes electronic control boards such as a main control unit and a control panel electrically connected to the motor 15, and these electronic control boards can be disposed in the air inlet channel 16 or the air outlet channel 18, and in this embodiment, the electronic control boards are preferably disposed in the air inlet channel 16, so as to reasonably utilize the space in the base 10. Because food processor 100 operation in-process, automatically controlled plate will also produce the heat, outside air has air intake 12 to get into and rise in going into wind passageway 16, gets into air-out passageway 18 at the top of motor 15, discharges by air outlet 14 at last, at the circulation flow process of air, the air flow direction is the mode of directly going up and directly going down, and the route in wind channel sets up rationally, and the windage that produces is less, and the radiating effect is better, and the noise that produces of air flow in-process is also less simultaneously.

Further, the fan 17 employed in the present embodiment is an axial flow fan 17, and the fan 17 is connected to an output shaft at the lower end of the rotor 151 of the motor 15. In the operation process of the food processor 100, the fan 17 is driven by the motor 15, so that an additional driving device is not needed, and the cost of the food processor 100 can be reduced. As can be seen from the above, the air outlet channel 18 extends vertically downward, the air flow direction driven by the axial flow fan 17 is also the axial direction of the fan 17, the extending direction of the rotating shaft of the rotor 151 of the fan 17 of this embodiment is vertically downward, and thus the extending direction of the air outlet channel 18 matches the air driving direction of the fan 17, so that the wind resistance is further reduced, the air flow is smoother, the wind resistance is reduced, and the wind noise is also reduced.

The inner shell 13 includes an air duct 131 and a volute 133 which are communicated, one end of the air duct 131 is sleeved with one end of the volute 133, the other end of the air duct 131 is fixedly connected with the stator 153, and the other end of the volute 133 is abutted to the housing 11.

The air duct 131 and the volute 133 can be made of plastic and are produced in an integral injection molding mode. It is understood that the volute 133 and the duct 131 may be a unitary structure in other embodiments.

Specifically, the volute 133 includes a connecting cylinder 133a and a silencing cover 133b which are communicated with each other, the connecting cylinder 133a partially extends into the air guide cylinder 131, the lower end of the silencing cover 133b covers the outer side of the air outlet 14, and the diameter of the inner cavity of the silencing cover 133b is larger than that of the connecting cylinder 133 a.

In this embodiment, the volute 133 and the air duct 131 are connected in a sleeved manner, so that the installation process is convenient. Meanwhile, the diameter of the inner cavity of the silencing cover 133b is larger than that of the inner cavity of the connecting cylinder 133a, so that the wind speed is reduced after the wind in the wind outlet channel 18 enters the inner cavity of the silencing cover 133b in the flowing process, and the wind noise is further reduced.

Referring to fig. 5, the rotation plane of the fan blades of the fan 17 of the present embodiment is located within the height range of the connecting cylinder 133 a. As can be seen from the above, the connecting cylinder 133a extends into the air guiding cylinder 131, so that the diameter of the inner cavity of the connecting cylinder 133a is smaller than that of the inner cavity of the air guiding cylinder 131, during the rotation of the fan 17, a suction effect on the air in the air guiding cylinder 131 can be formed, and the air in the air inlet channel 16 and the air guiding cylinder 131 can be rapidly discharged into the volute 133, thereby accelerating the air flow in the base 10 and improving the heat dissipation effect.

Further, the central axes of the air outlet channel 18, the motor 15, the fan 17, the air outlet 14 and the sound-deadening chamber 182 coincide. The air duct of the food processor 100 is designed simply, a straight-down air outflow path is formed, and the noise reduction and heat dissipation effects of the food processor 100 are better.

In order to further reduce noise and wind noise generated during the operation of the motor 15 and the fan 17 in the housing 10, a noise reduction material layer (not shown) is attached to the inner wall of the noise reduction cover 133 b. The layer of noise reducing material may preferably be a porous structure of sound absorbing cotton.

Referring to fig. 2 and fig. 3, the casing 11 of the present embodiment includes a casing 111 and a bottom cover 113 covering a lower end of the casing 111, the volute 133 and the bottom cover 113 enclose the sound-deadening chamber 182, a plurality of the air inlets 12 are disposed in a central area of the bottom cover 113, the air outlets 14 are disposed at an edge of the bottom cover 113, the plurality of the air outlets 14 are annularly arranged at intervals, and a circle center of an annulus enclosed by the plurality of the air outlets 14 is located on a rotation axis of the fan 17.

Because the axial flow fan 17 is selected to drive the air to flow in the embodiment, in the operation process of the fan 17, the wind power right below the fan 17 is small, and the wind power below the edge of the fan blade of the fan 17 is large, the plurality of air inlets 12 are uniformly arranged in a circular ring shape at intervals, the air driven by the fan 17 can be just discharged from the air outlet 14 below, the air circulation path is smooth, and the generated wind noise is further reduced.

Further, referring to fig. 4 and 5, in the embodiment, an annular protrusion 115 is protruded from a surface of the bottom cover 113 facing the volute 133, a sound reflection groove 117 is defined by the annular protrusion 115, and the annular protrusion 115 is located inside the air outlet 14 and right below the fan 17.

When the noise generated during the operation and rotation of the motor 15 and the fan 17 is transmitted to the air outlet 14 through the air outlet channel 18 during the operation of the food processor 100, a part of the noise is attenuated by the convolution interference of the sound reflection groove 117, and the other part of the noise is reflected into the air outlet channel 18 through the sound reflection groove 117 and interferes with the noise transmitted to the air outlet 14 direction in the air outlet channel 18, so that the noise generated by the food processor 100 is further attenuated.

In this embodiment, a snap ring 119 is further protruded from a surface of the bottom cover 113 facing the volute 133, the snap ring 119 is located outside an annular shape formed by the plurality of air outlets 14 and is partially located between the air inlet 12 and the air outlet 14, and a lower end of the sound-deadening cap 133b is sleeved outside the snap ring 119. The volute 133 and the bottom cover 113 are connected in a sleeving manner, which is convenient in the assembling process of the stand 10.

Referring to fig. 1 and fig. 2 again, the food processor 100 of the present embodiment further includes a stirring cup assembly 30 mounted on the upper end of the base 10, the stirring cup assembly 30 includes a stirring cup 31, a heating device (not labeled) is disposed at the bottom of the stirring cup 31, the heating device includes a heat conducting plate 33 disposed at the bottom of the stirring cup 31 and an electric heating tube 35 or an electric heating film disposed at the bottom of the heat conducting plate 33; or the heating device comprises a magnetic conductive disk (not shown) and a coil disk (not shown) which are arranged at the bottom of the stirring cup 31, wherein the coil disk is positioned below the magnetic conductive disk and is opposite to the magnetic conductive disk.

The food processor 100 of this embodiment can adopt a resistive heating or electromagnetic heating mode, and in the electromagnetic heating mode, the magnetic conductive disk can be a magnetic conductive material such as cast iron. In the resistance heating mode, the overall structure of the food processor 100 is simpler, the cost is lower, and in the electromagnetic heating mode, the heating effect is better.

The stirring cup assembly 30 further comprises a stirring knife assembly partially positioned in the stirring cup 31, the stirring knife assembly comprises a knife holder 39 fixed on the heat conducting disc 33 or the heat conducting disc, and a stirring knife 37 mounted on the knife holder 39, and a knife shaft of the stirring knife 37 is connected with an output shaft at the upper end of the rotor 151.

The motor 15 of the present embodiment simultaneously drives the stirring blade 37 to rotate and the fan 17 to rotate, so that different power devices are not required, and the cost and the installation space of the food processor 100 can be further saved.

This food processor 100 includes broken wall cooking machine, juice extractor, soybean milk machine and mixer. Wherein, broken wall cooking machine can assemble product functions such as juice extractor, soybean milk machine, ice cream machine, cooking machine, mill, can hit the food cell wall in the twinkling of an eye, releases phytobiochemical.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A food processor is characterized by comprising a base, wherein the base comprises a shell, a motor, an inner shell and a fan, wherein the motor, the inner shell and the fan are accommodated in the shell;

the shell is provided with an air outlet;

the motor comprises a rotor and a stator sleeved outside the rotor, and a gap is formed between the stator and the rotor;

a cavity channel is formed in the inner shell, one end of the inner shell is connected to the stator in a sealing mode, the other end of the inner shell abuts against the machine shell and covers the outer side of the air outlet, a gap between the stator and the rotor is communicated with the cavity channel of the inner shell to form an air outlet channel, and the air outlet channel is communicated with the air outlet;

one end of the inner shell, which is close to the air outlet, is matched with the shell to form a silencing cavity, the silencing cavity is communicated with the air outlet channel and the air outlet, and the fan is positioned in the silencing cavity;

the inner shell comprises an air guide cylinder and a volute which are communicated, one end of the air guide cylinder is sleeved at one end of the volute, the other end of the air guide cylinder is fixedly connected with the stator, the other end of the volute is abutted to the casing, the volute comprises a connecting cylinder and a silencing cover which are communicated, the connecting cylinder partially extends into the air guide cylinder, the lower end of the silencing cover is covered on the outer side of the air outlet, and the diameter of an inner cavity of the silencing cover is larger than that of the inner cavity of the connecting cylinder.

2. The food processor as claimed in claim 1, wherein the housing further defines an air inlet, and an air inlet channel is formed between the outer walls of the inner housing and the stator and the inner wall of the housing, and the air inlet channel communicates the air outlet channel and the air inlet.

3. The food processor of claim 1, wherein the fan is an axial fan connected to an output shaft at a lower end of the rotor.

4. The food processor of claim 1, wherein the central axes of the air outlet channel, the motor, the fan, the air outlet and the sound-deadening chamber coincide.

5. The food processor of claim 2, wherein the fan blades are located within the height of the connector barrel.

6. The food processor of claim 5, wherein the inner wall of the noise reduction cover is provided with a layer of noise reduction material.

7. The food processor as claimed in claim 5 or 6, wherein the casing comprises a casing and a bottom cover covering the lower end of the casing, the volute and the bottom cover enclose the silencing chamber, the central region of the bottom cover is provided with a plurality of air outlets, the edge of the bottom cover is provided with the air inlet, the air outlets are annularly arranged and spaced, and the center of the ring is located on the rotation axis of the fan.

8. The food processor of claim 7, wherein the surface of the bottom cover facing the volute is convexly provided with an annular protrusion, the annular protrusion enclosing a sound reflection groove, the annular protrusion being located inside the plurality of annularly arranged air outlets and below the fan.

9. The food processor as claimed in claim 8, wherein a snap ring is further protruded from a surface of the bottom cover facing the spiral casing, the snap ring is located outside the plurality of air outlets and partially located between the air inlet and the air outlet, and a lower end of the noise reduction cover is sleeved outside the snap ring.

10. The food processor as claimed in claim 1, further comprising a stirring cup assembly mounted at the upper end of the base, wherein the stirring cup assembly comprises a stirring cup, a heating device is arranged at the bottom of the stirring cup, and the heating device comprises a heat conducting disc arranged at the bottom of the stirring cup and an electric heating tube or an electric heating film arranged at the bottom of the heat conducting disc; or the heating device comprises a magnetic conduction disc and a coil disc which are arranged at the bottom of the stirring cup, and the coil disc is positioned below the magnetic conduction disc and is opposite to the magnetic conduction disc.

11. The food processor of claim 10, wherein the stirring cup assembly further comprises a stirring knife assembly partially located in the stirring cup, the stirring knife assembly comprises a knife holder fixed on the heat conducting disc or the magnetic conducting disc, and a stirring knife mounted on the knife holder, and an arbor of the stirring knife is connected with an output shaft at the upper end of the rotor.