CN220293522U - Driving device and cooking machine - Google Patents

Abstract

The utility model is suitable for the technical field of household appliances, and provides a driving device and a cooking machine. The food processor comprises any one of the driving devices. The noise generated when the rotating fan blade rotates is blocked through the inner wall of the first buffer cavity, and part of noise is reduced and transmitted out of the main shell. Secondly, after the air flow is cut into scattered and soft air flows through the air flow cutting piece, the strength of the air flow is further reduced through the buffer of the first buffer cavity, so that noise generated by the too strong air flow is reduced to a certain extent, the noise of the whole machine is reduced, the structure is simple, the installation is convenient, and the use experience is improved.

Description

Driving device and cooking machine

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a driving device and a cooking machine.

Background

At present, along with the improvement of the living standard of modern people, the demands of people on food cooking are also higher and higher, so the food processing machine is deeply favored by consumers as a multifunctional kitchen appliance. The cooking machine is characterized in that the rotating speed of the power unit is high in the using process, a large amount of heat can be generated in the working process of the power unit, and therefore the heat dissipation of the power unit can be ensured by arranging the heat dissipation fan. In order to ensure that the heat dissipation rate of the power unit is sufficiently high, it is necessary that the heat dissipation fan generates an air flow of sufficient strength at a high rotational speed. But the high strength air current that radiator fan produced when high-speed rotation can produce very big noise in the inside cooking machine, influences customer's use experience.

Disclosure of Invention

The utility model aims to provide a driving device and a food processor, and aims to solve the technical problem that noise generated by a cooling fan in the use process of the existing food processor greatly influences customer experience.

The utility model is realized in a first aspect, and provides a driving device, which comprises a main shell, wherein a first buffer cavity is arranged in the main shell, an air inlet and at least one first air outlet are arranged on the first buffer cavity, the first buffer cavity is used for discharging a radiating air flow out of the main shell after passing through, an air flow cutting member is arranged in the first buffer cavity, and the air flow cutting member is positioned on an air flow path between the air inlet and the first air outlet and is used for cutting air flow passing through the first buffer cavity.

In an optional embodiment, the number of the first air outlet holes is multiple, and the multiple first air outlet holes are arranged at intervals along the circumferential direction of the first buffer cavity.

In an optional embodiment, a second buffer cavity is further arranged in the main casing, the first buffer cavity is communicated with the second buffer cavity through the first air outlet hole, and the second buffer cavity is provided with a second air outlet hole which is staggered with the first air outlet hole.

In an optional embodiment, the number of the first air outlet holes is multiple, the multiple first air outlet holes are arranged at intervals along the circumferential direction of the first buffer cavity, the second buffer cavity is wound around the circumference of the first buffer cavity, and the second air outlet holes are located at the bottom of the second buffer cavity.

In an alternative embodiment, a first box body and a ventilation cylinder body are arranged in the main shell body, the ventilation cylinder body is arranged in the first box body, the inner wall of the ventilation cylinder body is enclosed to form a first buffer cavity, and the outer wall of the ventilation cylinder body and the inner wall of the first box body are enclosed to form a second buffer cavity.

In an alternative embodiment, an extension boss is further arranged on the inner wall of the main casing, the extension boss is located in the first box body and below the ventilation cylinder, and the top of the extension boss is in sealing connection with the bottom of the ventilation cylinder.

In an alternative embodiment, the airflow cutting member includes a main board body, and a plurality of through holes disposed on the main board body and penetrating the main board body.

In an alternative embodiment, a plurality of through holes Kong Wei are arranged into a plurality of concentric annular heat dissipation structures, and the annular heat dissipation structures are sequentially arranged at intervals from inside to outside along the radial direction and sequentially increase in diameter.

In an optional embodiment, the main board body is further provided with a plurality of first ribs and second ribs which are mutually intersected, the surfaces of the main board body are divided into a plurality of ventilation areas by the first ribs and the second ribs, and the through holes are formed in the ventilation areas.

In a second aspect, a food processor is provided, comprising a drive device as described in any one of the above.

Compared with the prior art, the utility model has the technical effects that: the driving device provided in the first aspect is provided with a first buffer cavity with an air inlet and at least one first air outlet in the main shell, and an air flow cutting piece is further arranged in the first buffer cavity. An air flow cutting piece is arranged on an air flow path between the air inlet and the first air outlet, and strong air flow generated by the rotating fan blade is divided into dispersed and soft air flow through the air flow cutting piece. The air flow can accumulate in the end area of the first buffer cavity far away from the rotating fan blade after being cut, then flows out of the first buffer cavity from the first air outlet, and the strength of the air flow can be further reduced through buffering of the air flow. Compared with the mode of increasing the number of sound insulation components or reducing the noise of the rotating speed of the cooling fan, the air flow is cut into scattered and soft air flow through the air flow cutting piece, the strength of the air flow is further reduced through the buffer memory of the first buffer cavity, the noise generated by the too strong air flow is reduced to a certain extent, the noise of the whole machine is reduced, the structure is simple, the installation is convenient, and the use experience is improved.

It will be appreciated that the advantages of the second aspect may be found in the relevant description of the first aspect, and will not be described in detail herein.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the embodiments of the present utility model or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a driving apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a driving apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2;

FIG. 4 is a schematic view of an air flow cutter used in an embodiment of the present utility model;

FIG. 5 is a schematic view of a first case and a ventilation cylinder according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the internal airflow direction of a driving device according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a main housing; 2. a power unit; 3. rotating the fan blades; 4. a first buffer chamber; 5. a second buffer chamber; 6. an air flow cutting member; 601. a main board body; 602. a through hole; 603. the first convex rib; 604. the second convex rib; 7. a first air outlet hole; 8. a second air outlet hole; 9. a first case; 10. a ventilation cylinder; 11. an extension boss; 12. and a second case.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The food processor generally comprises a cup body, a crushing cutter and a driving device, wherein the cup body is placed on the driving device when in use, then the crushing cutter is connected with an output shaft on the driving device, and the crushing cutter is driven to rotate by a power unit 2 in the driving device to process food in the cup body. The problem that the noise is too large when the handheld food processor is used at present is that a great part of noise is generated when the driving device works, and therefore the embodiment of the utility model provides the driving device for solving the problem that the noise is too large.

Referring to fig. 1 to 5, in an embodiment of the present utility model, a driving device is provided for driving a crushing cutter to rotate. The driving device comprises a main shell 1 and a first buffer cavity 4 arranged in the main shell 1, wherein the first buffer cavity 4 is used for discharging the heat-radiating air out of the main shell 1 after flowing, and an air inlet and at least one first air outlet 7 are arranged on the first buffer cavity 4. The airflow cutting member 6 is located in the airflow path between the air inlet and the first air outlet 7, and the airflow cutting member 6 is used for cutting the airflow passing through the first buffer chamber 4.

In order to facilitate the rotation of the crushing cutter in the cup body, a power output mechanism is arranged in the main shell 1, and the power output mechanism can comprise a power unit 2 and rotating fan blades 3. The power unit 2 is a device arranged in the main casing 1 and used for outputting rotation torque, and is generally driven by electric energy, and the power unit 2 can be any one of an electric motor, a motor or other torque output devices. The rotating fan blade 3 is generally an axial flow fan, the installation mode is that two ends of an output shaft of the power unit 2 are protruded out of a body of the power unit 2, one end of the output shaft is used for being connected with a crushing cutter to output rotating torque, the rotating fan blade 3 is installed on the other end of the output shaft, and the rotating fan blade 3 can be driven in other modes. The rotating fan blade 3 and the peripheral body driving the rotating fan blade 3 to rotate extend into the first buffer cavity 4 through the air inlet. The inner wall of the first buffer cavity 4 can be arranged around the periphery of the rotary fan blade 3, so that noise generated by fan blade shake during rotation of the rotary fan blade 3 can be blocked, and part of noise is reduced and transmitted to the outside of the main shell 1.

The main shell 1 is a thin-wall component with a cavity inside, the main shell 1 is also provided with an air inlet and an air outlet, the air inlet of the first buffer cavity is communicated with the outer space of the driving device through the air inlet on the main shell, and the first air outlet of the first buffer cavity is communicated with the outer space of the driving device through the air outlet on the main shell. The power unit 2 and the rotating fan blades 3 are arranged in the main shell 1. A structure for mounting the cup body is provided at the outside of the main casing 1 and a crushing blade is also rotatably provided inside the cup body. The output end of the power unit 2 extends out of the main shell 1, and after the cup body is mounted on the top of the main shell, the output end of the power unit is connected with the crushing cutter in the cup body so as to drive the crushing cutter to rotate.

The first buffer cavity 4 is a hollow cavity surrounded by thin-wall components and can be formed by the components of the main shell 1; and the device can also be formed by additionally arranging other components for surrounding. The rotating fan blade 3 stretches into the first buffer cavity 4 through the air inlet, and when the rotating fan blade 3 rotates, air flow is driven to enter the first buffer cavity 4 from the air inlet. The air inlet and the first air outlet 7 are openings arranged on the first buffer cavity 4.

The airflow cutting member 6 refers to a member that divides the whole airflow into a plurality of streams, and the airflow cutting member 6 may be in the form of a plurality of ventilation holes provided in a plate body; or a plurality of columnar members or strip-shaped members with certain lengths are mutually intersected to form the member, so that the function of cutting the air flow when the air flow enters is achieved. The airflow cutting member 6 may be integrally formed with the inner wall of the first buffer chamber 4; the connection with the inner wall of the first buffer cavity 4 can be detached, and the connection can be selected according to the actual condition of production.

According to the driving device provided by the embodiment of the utility model, the first buffer cavity 4 with the air inlet and at least one first air outlet hole 7 is arranged in the main shell 1, and the air flow cutting piece 6 is also arranged in the first buffer cavity 4. The airflow cutting member 6 is arranged on the airflow passing path, and the strong airflow generated by the rotating fan blade 3 is divided into dispersed and soft airflows after passing through the airflow cutting member 6. And the air flow is accumulated in the end area of the first buffer chamber 4 after cutting and then flows out of the first buffer chamber 4 from the first air outlet hole 7. Compared with the mode of increasing the number of sound insulation components or reducing the noise of the rotating speed of the cooling fan in the prior art, after the air flow is cut into scattered and soft air flow through the air flow cutting piece 6, the strength of the air flow is further reduced through the buffer memory of the first buffer cavity 4, so that the noise generated by the too strong air flow is reduced to a certain extent, the noise of the whole machine is reduced, the structure is simple, the installation is convenient, and the use experience is improved.

In one embodiment, as shown in fig. 2, the number of the first air outlet holes 7 is plural, and the plural first air outlet holes 7 are arranged at intervals along the circumferential direction of the first buffer chamber 4. Specifically, the air intake sets up the top department at first buffer chamber 4, first apopore 7 sets up on the week of first buffer chamber 4, the bottom of first buffer chamber 4 is seal structure, after the air current gets into first buffer chamber 4 from the air intake under the effect of rotating flabellum 3 like this, it just can flow out first buffer chamber 4 from first apopore 7 after the blocking of first buffer chamber 4 bottom, the time that the air current left in first buffer chamber 4 has been increased, thereby can consume the energy that air current self carried, make first buffer chamber 4 play the effect of buffering air current. Meanwhile, the number of the first air outlet holes 7 is multiple, so that air flows entering the first buffer cavity 4 can be separated and discharged. The plurality of first air outlet holes 7 are arranged at intervals along the circumferential direction of the first buffer cavity 4, so that the air flow in each direction of the first buffer cavity 4 is discharged more uniformly, and the air flow speed is high due to the fact that local air flow is concentrated is avoided to a certain extent.

In one embodiment, as shown in fig. 2 and 3, the driving device further includes a second buffer chamber 5 disposed in the main housing 1, the first buffer chamber 4 is communicated with the second buffer chamber 5 through a first air outlet 7, and a second air outlet 8 staggered with the first air outlet 7 is disposed on the second buffer chamber 5. Specifically, the second buffer cavity 5 is also a hollow cavity surrounded by thin-wall components, and can be formed by the components of the main housing 1; and the device can also be formed by additionally arranging other components for surrounding. The staggered arrangement of the second air outlet hole 8 and the first air outlet hole 7 means that the second air outlet hole 8 is not opposite to the first air outlet hole 7, and the air flow entering the second buffer cavity 5 from the first air outlet hole cannot be directly blown out from the second air outlet hole 8. The second buffer chamber 5 may further buffer the air flow blown out by the rotating fan blade 3 through the second buffer chamber 5 after buffering by the first buffer chamber 4. And the second air outlet hole 8 and the first air outlet hole 7 are arranged in a staggered manner, so that air flow can be prevented from being directly discharged through the second air outlet hole 8 after entering the second buffer cavity 5 through the first air outlet hole 7, the air flow can be discharged from the second air outlet hole 8 after flowing in the second buffer cavity 5 for a certain time, the second buffer cavity 5 plays a role in buffering the air flow, and the overlarge wind noise caused by strong air flow can be avoided to a certain extent.

In one embodiment, as shown in fig. 1 and 2, the number of the first air outlet holes 7 is plural. The first air outlet holes 7 are formed in the first buffer cavity 4 at intervals in the circumferential direction, the second buffer cavity 5 is wound on the first buffer cavity 4 in the circumferential direction, and the second air outlet holes 8 are formed in the bottom of the second buffer cavity 5. Specifically, in order to make the shape of the first buffer chamber 4 and the shape of the rotary fan blade 3 more adapt, the overall shape of the first buffer chamber 4 can be cylindrical, the top end of the first buffer chamber 4 is provided with an air inlet, the lower end of the air inlet is of a sealing structure, and the rotary fan blade 3 is arranged at the top end of the first buffer chamber 4. The circumferential direction of the first damper chamber 4 may be a direction around the axis of the first damper chamber 4 or a direction around the direction of the air flow. The first air outlet holes 7 are formed in the circumferential direction of the first buffer cavity 4 at intervals, so that the air outlet of the whole first buffer cavity 4 in all directions is more uniform, meanwhile, the second buffer cavity 5 is wound on the circumferential ring of the first buffer cavity 4, the contact area between the second buffer cavity 5 and the first buffer cavity 4 can be increased, the first air outlet holes 7 are formed in the condition that the buffer effect of the first buffer cavity 4 is guaranteed as much as possible, and the occurrence of the problem that the air circulation is not smooth between the second buffer cavity 5 and the first buffer cavity 4 is avoided to a certain extent. In addition, the second buffer cavity 5 is wound around the first buffer cavity 4, so that the air flow can enter the second buffer cavity 5 more uniformly, the air inlet flow in each part of the second buffer cavity 5 is kept consistent, and the problem of local air flow concentration in the second buffer cavity 5 can be avoided to a certain extent.

Meanwhile, the bottom of the second buffer cavity 5 is far away from one side of the rotating fan blade 3, the second air outlet holes 8 are located at the bottom of the second buffer cavity 5, the second air outlet holes 8 and the first air outlet holes 7 are arranged in a staggered mode, a plurality of second air outlet holes 8 are arranged around the first buffer cavity 4 at intervals, air flow entering the second buffer cavity 5 from the first air outlet holes 7 cannot be directly blown out from the second air outlet holes 8, and therefore the air flow can be blown out from the second air outlet holes 8 only after the second buffer cavity 5 is full, and the buffer effect of the whole second buffer cavity 5 is better. Meanwhile, the bottom of the second buffer cavity 5 is usually the bottom of the whole main shell 1, and when the food processor is used, the second air outlet hole 8 is arranged towards a tabletop or other supporting surfaces, and noise can be blocked to a certain extent through the tabletop or other supporting surfaces.

In an alternative embodiment, as shown in fig. 2, a plurality of second air outlet holes are arranged around the axis of the first buffer chamber 4 and are spaced from each other, so that the air flow in each portion of the second buffer chamber 5 is more uniformly discharged.

In another alternative embodiment, as shown in fig. 2 and 3, the height dimension of the first buffer chamber 4 is smaller than the height dimension of the second buffer chamber 5. The first air outlet 7 is located in a region of the first buffer chamber 4 near the bottom in the height direction, but is located in a region of the second buffer chamber 5 near the middle in the height direction, and specifically, the height directions of the first buffer chamber 4 and the second buffer chamber 5 both refer to the dimension along the air outlet direction of the rotating fan blade 3. The first air outlet hole 7 is located in the area of the first buffer cavity 4, which is close to the bottom in the height direction, so that the first air outlet hole 7 is far away from the airflow cutting piece 6 and the rotating fan blade 3 as far as possible, and the first buffer cavity 4 has more buffer space below the airflow cutting piece 6, thereby improving the buffer effect of the first buffer cavity 4. Meanwhile, the first air outlet 7 is positioned in the area, close to the middle part, of the second buffer cavity 5 in the height direction, so that air flow entering the second buffer cavity 5 forms a cyclone in the second buffer cavity 5, the second buffer cavity 5 can be conveniently discharged from the second air outlet 8 after being filled, and the buffer effect is improved.

In a specific embodiment, as shown in fig. 2, 4 and 5, a first box body 9 and a ventilation cylinder body 10 are disposed in the main casing 1, at least a part of the ventilation cylinder body 10 is disposed in the first box body 9, the inner wall of the ventilation cylinder body 10 encloses a first buffer cavity 4, and the outer wall of the ventilation cylinder body 10 encloses a second buffer cavity 5 with the inner wall of the first box body 9. The first box 9 is a thin-walled member having a certain internal space, and an opening may be provided on the first box 9 for convenience in processing and manufacturing, and the opening on the first box 9 is abutted against the inner wall of the main casing 1 so as to maintain sealing. The ventilation cylinder 10 is a member surrounded by a plate shape having a thin thickness dimension, wherein one end of the ventilation cylinder 10 is provided with an opening, the other end is a sealing structure, and the sealing structure at the other end of the ventilation cylinder 10 can be sealed by providing an additional baffle plate at the end of the ventilation cylinder 10; the end of the ventilation cylinder 10 may be abutted against the inner wall of the main casing 1, and the ventilation cylinder 10 may be sealed by a part of the inner wall of the main casing 1. And ventilation barrel 10 sets up in first box body 9, and ventilation barrel 10 be provided with open-ended one end and the outside intercommunication of first box body 9, and ventilation barrel 10 inner channel is first cushion chamber 4 this moment, and ventilation barrel 10 tip department's opening is the air intake of first cushion chamber 4 promptly, and ventilation barrel 10 encloses with first box body 9 and establishes into second cushion chamber 5, can make whole main casing 1 inner structure simpler.

In addition, the first air outlet hole 7 can be formed in the side wall of the ventilation cylinder 10, and the second air outlet hole 8 can be formed in the main casing 1 in a region where the first box body 9 is buckled with the main casing 1, so that the internal structure of the main casing 1 is more reasonable.

In an alternative embodiment, as shown in fig. 4 and 5, the first case 9 is detachably connected to the inner wall of the main casing 1. Specifically, the first box body 9 and the inner wall of the main shell 1 can be fixed by a fastener, a fixing lug is arranged on the side surface of the first box body 9, and the fastener passes through the fixing lug and is fixed on the main shell 1; a snap-fit structure may be provided on the inner arm of the main casing 1 to press-fix the first cartridge 9 to the inner wall of the main casing 1.

In another alternative embodiment, as shown in fig. 2 to 5, the ventilation cylinder 10 and the first box 9 are integrally formed, and the first box 9 and the ventilation cylinder 10 are located on the air outlet side of the rotary fan blade 3. When the driving device is installed, the first box body 9 is only required to be connected with the side wall of the main shell 1, so that the whole driving device is more convenient to assemble.

In order to facilitate the communication between the first buffer cavity 4 and the second buffer cavity 5, as shown in fig. 1, an extension boss 11 is further provided on the inner wall of the main housing 1, the extension boss 11 is located in the first box body 9 and below the ventilation cylinder 10, and the top of the extension boss 11 is in sealing connection with the bottom of the ventilation cylinder 10. Specifically, the extension boss 11 is a member with a certain height protruding on the inner wall of the main casing 1, and the extension boss 11 may be formed by stretching a portion of the side wall of the main casing 1 to the inside, so that the whole main casing 1 is lighter; or a block body is directly arranged on the inner wall of the main shell 1; a flat surface may be provided at the top of the extension boss 11, and the end of the ventilation cylinder 10 is abutted against the flat surface at the top of the extension boss 11 by sealing the end of the extension boss 11 at the ventilation cylinder 10. The arrangement of the extension boss 11 can make it more convenient to keep the end of the ventilation cylinder 10 sealed.

In an alternative embodiment, as shown in fig. 3 and 5, a plurality of relief notches may be provided on the end surface of the ventilation cylinder 10, and when the end of the ventilation cylinder 10 abuts against the extension boss 11 or other areas of the inner wall of the main casing 1, the first air outlet 7 may be formed in the area near the lower end on the side wall of the ventilation cylinder 10.

On the basis of the above characteristics of the first case 9 and the ventilation cylinder 10, as shown in fig. 1 and 6, a second case 12 for accommodating the power unit 2 is further provided in the main casing 1, an air inlet channel is provided on the second case 12, and a communication opening for communicating the second case 12 with the ventilation cylinder 10 is provided at the bottom of the second case 12. Specifically, the second case 12 also refers to a thin-walled member having a certain internal space. An air inlet is arranged at the top of the second box body 12, and the power unit 2 is arranged in the second box body 12. When the rotary fan blades 3 rotate, air flow can enter the main shell from the air inlet at the bottom of the main shell 1 and then flow upwards, then flow into the second box body 12 from the air inlet at the top of the second box body 12, and after flowing through the power unit 2, the air flow enters the ventilation cylinder body 10 from the communication opening. The air flow through the power unit 2 can be isolated from the air flow entering the main housing 1 by the second casing 12. The air flow flowing through the power unit 2 is prevented from being disturbed to influence the strength to a certain extent, and the heat dissipation effect at the power unit 2 is improved.

In one embodiment, as shown in fig. 4, the airflow cutting member 6 includes a main board body 601, and a plurality of through holes 602 disposed on the main board body 601 and penetrating the main board body 601. Specifically, the main board body 601 is located at the air outlet side of the rotating fan blade 3, and when the air flow passes through the air flow cutting member 6, the air flow can only pass through the through holes 602 on the main board body 601, and the strong air flow can be separated into soft air flow through the air flow cutting member 6, so that the excessive noise caused by the strong air flow is avoided to a certain extent. And the total area of the through holes 602 on the main board body 601 is larger than the areas of other parts of the main board body 601, so that the air flow cutting member 6 can be prevented from influencing the air flow to a certain extent, and the air can be ensured to pass smoothly.

In an alternative embodiment, the plurality of through holes 602 are surrounded by a plurality of concentric annular heat dissipation structures, and the plurality of annular heat dissipation structures are sequentially spaced from inside to outside along the radial direction and sequentially increase in diameter. Specifically, the center of the circle of the annular heat dissipation structure is generally disposed on the rotation axis of the rotating fan blade 3, where the through hole 602 may be a oblong hole or a circular hole, and the through hole 602 is arranged to conform to the rule of gas flow, so that the gas flow cutting member 6 can divide the gas flow more conveniently.

In one embodiment, as shown in fig. 4, the main board body 601 is further provided with a plurality of first ribs 603 and second ribs 604 that intersect with each other, the first ribs 603 and the second ribs 604 divide the surface of the main board body 601 into a plurality of ventilation areas, and the through holes 602 are respectively disposed in the ventilation areas. Specifically, the first ribs 603 and the second ribs 604 are strip-shaped members disposed on the surface of the main board body 601, and the first ribs 603 and the second ribs 604 are arranged to divide the surface of the main board body 601 into a plurality of ventilation areas, so that when the air flow contacts with the surface of the main board body 601, the air flow can be blocked along the side direction of the main board body 601, the air flow can be prevented from flowing along the side direction of the main board body 601 to a certain extent, more air flows can enter the through holes 602, and the air flow can pass through the air flow cutting member 6 more smoothly.

In an alternative embodiment, as shown in fig. 4, the first ribs 603 are radially distributed with a base point as a starting point, and the second ribs 604 are concentrically arranged in a ring shape, and the center of the second ribs 604 coincides with the base point. The base point is located on the rotational axis of the rotary blade 3. The first convex rib 603 and the second convex rib 604 form a web-shaped grid structure, so that the wind shielding separation effect of the first convex rib 603 and the second convex rib 604 is better.

In a second aspect, a food processor is further provided, where the food processor includes any one of the above driving devices, and in addition, the food processor generally further includes a cup body and a crushing cutter, the cup body is disposed above the driving device and has an opening facing upwards, the crushing cutter is rotatably disposed in the cup body, and a driving shaft of the power unit in the driving device penetrates through the bottom of the cup body and is connected with the crushing cutter. Specifically, the cup top is provided with the opening that is used for food to put into the cup, and the cup is placed on drive arrangement when using, and the drive shaft of smashing the sword in the cup runs through the bottom of cup and links to each other with the output shaft of the last power pack of drive arrangement. And the rotation of the crushing cutter can be controlled by a control module of the driving device.

It will be appreciated that the advantages of the second aspect are the same as those of the first aspect, and specific reference may be made to the description of the first aspect, which is not repeated here.

The foregoing description of the preferred embodiments of the utility model has been presented only to illustrate the principles of the utility model and not to limit its scope in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model, and other embodiments of the present utility model as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present utility model.

Claims (10)

1. The driving device is characterized by comprising a main shell, a first buffer cavity is arranged in the main shell, an air inlet and at least one first air outlet are arranged on the first buffer cavity, the first buffer cavity is used for discharging the air from the main shell after the air-dispersing air flows through the main shell, an air flow cutting piece is arranged in the first buffer cavity and is positioned on an air flow path between the air inlet and the first air outlet, and the air flow cutting piece is used for cutting air flow passing through the first buffer cavity.

2. The driving device according to claim 1, wherein the number of the first air outlet holes is plural, and the plural first air outlet holes are arranged at intervals along the circumferential direction of the first buffer chamber.

3. The driving device according to claim 1, wherein a second buffer cavity is further provided in the main housing, the first buffer cavity is communicated with the second buffer cavity through the first air outlet, and the second buffer cavity is provided with a second air outlet which is staggered with the first air outlet.

4. The driving device as recited in claim 3 wherein said plurality of first air outlet holes are provided in a plurality of spaced apart relation along the circumference of said first buffer chamber, said second buffer chamber being disposed around said first buffer chamber, said second air outlet holes being disposed at the bottom of said second buffer chamber.

5. The driving device according to claim 4, wherein a first box body and a ventilation cylinder body are arranged in the main shell, the ventilation cylinder body is arranged in the first box body, the inner wall of the ventilation cylinder body is enclosed to form the first buffer cavity, and the outer wall of the ventilation cylinder body and the inner wall of the first box body are enclosed to form the second buffer cavity.

6. The driving device according to claim 5, wherein an extension boss is further provided on an inner wall of the main housing, the extension boss is located in the first box body and below the ventilation cylinder, and a top of the extension boss is in sealing connection with a bottom of the ventilation cylinder.

7. The driving device as claimed in any one of claims 1 to 6, wherein the air flow cutting member comprises a main plate body, and a plurality of through holes provided on the main plate body and penetrating the main plate body.

8. The driving device as recited in claim 7 wherein a plurality of said through-holes Kong Wei are provided as a plurality of concentrically arranged annular heat dissipating structures, said plurality of annular heat dissipating structures being sequentially spaced radially from inside to outside.

9. The driving device as recited in claim 7 wherein said main plate body is further provided with a plurality of first ribs and second ribs intersecting each other, said first ribs and said second ribs dividing the surface of said main plate body into a plurality of ventilation areas, each of said ventilation areas being provided with said through holes.

10. A food processor comprising a drive arrangement as claimed in any one of claims 1 to 9.