CN215305243U

CN215305243U - Food processing machine

Info

Publication number: CN215305243U
Application number: CN202121601456.5U
Authority: CN
Inventors: 朱泽春; 孙臣见
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-12-28
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a food processing machine, which belongs to the field of domestic electric appliances, solves the problem of poor air outlet effect, and mainly adopts the technical scheme that the food processing machine comprises a host machine and a crushing assembly, wherein the crushing assembly comprises a crushing cup, a crushing knife arranged in the crushing cup and a motor used for driving the crushing knife, the motor is arranged in the host machine, the host machine comprises a heat dissipation cavity used for dissipating heat, fan blades are arranged in the heat dissipation cavity, the host machine comprises a peripheral wall used for limiting the heat dissipation cavity, the peripheral wall limits an air outlet, the peripheral wall comprises a first flow guide wall positioned at the rear end along the rotation direction of the fan blades, and an included angle alpha between the first flow guide wall and a vertical plane is an acute angle, wherein the vertical plane passes through the front side edge of the first flow guide wall and the rotation axis of the fan blades. The application provides a food preparation machine, when the heat dissipation chamber was derived to the air current, received the pressure of first water conservancy diversion wall, let the air current velocity of flow who derives the heat dissipation chamber increase, has promoted the radiating efficiency, has optimized the radiating effect.

Description

Food processing machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to a food processing machine.

Background

Wall breaking machines are common food processing machines. The broken wall machine is including the crushing unit who is located the top and the host computer that is located the below. The host machine of the wall breaking machine is provided with an annular heat dissipation cavity, and the peripheral wall positioned outside the heat dissipation cavity defines an air outlet. The wall surface of the existing peripheral wall at the air outlet is tangent to the inner arc-shaped wall surface, so that the air outlet effect is not ideal enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a food processor which can optimize the air outlet effect.

In order to achieve the above object, the present invention provides a food processor, which comprises a main machine and a pulverizing assembly, wherein the pulverizing assembly comprises a pulverizing cup, a pulverizing knife arranged in the pulverizing cup and a motor for driving the pulverizing knife, the motor is arranged in the main machine, the main machine comprises a heat dissipation chamber for dissipating heat, fan blades are arranged in the heat dissipation chamber, the main machine comprises a peripheral wall for limiting the heat dissipation chamber, the peripheral wall defines an air outlet, the peripheral wall comprises a first flow guide wall positioned at the rear end along the rotation direction of the fan blades, an included angle α between the first flow guide wall and a vertical plane is an acute angle, and the vertical plane passes through the front side edge of the first flow guide wall and the rotation axis of the fan blades.

In a further embodiment of the present application, α ≦ 84 ≦ 88.

In the above scheme, if the included angle alpha is larger, the local pressure at the air outlet is small, and the air outlet is easily influenced by turbulence. If the included angle is too small, kinetic energy loss is easily caused. The experimental result shows that when the alpha is more than or equal to 84 degrees and less than or equal to 88 degrees, the air outlet effect is optimal. Preferably, α is 86 ° most preferred.

In a further embodiment of the application, the peripheral wall further comprises a second flow guiding wall at the front end, the second flow guiding wall having an acute angle β with the vertical plane.

In the above-mentioned scheme, compared with the scheme that the right angle is formed between the second flow guide wall and the vertical plane in the prior art, the included angle β between the second flow guide wall and the vertical plane is an acute angle, which is more convenient for helping the air flow to be smoothly discharged out of the volute.

In a further embodiment of the present application, 72 ≦ β ≦ 84.

In the scheme, the large included angle beta hinders the air flow from being discharged, and the small included angle beta easily generates low-pressure turbulence. The experimental result shows that when the beta is more than or equal to 72 degrees and less than or equal to 84 degrees, the air outlet effect is optimal.

In a further embodiment of the present application, the peripheral wall further comprises an intermediate wall, one end of the intermediate wall is connected to the first flow guide wall, and the other end is connected to the second flow guide wall;

and a fillet is arranged at the joint of the second flow guide wall and the middle wall.

In the above scheme, the fillet plays a role in dividing the airflow, and the blade blows out the airflow for cutting, so that the airflow is prevented from generating an internal circulation effect.

In a further embodiment of the present application, the radius R of the rounded corner satisfies 2 mm ≦ R ≦ 8 mm.

In the above scheme, the fillet is sharp and can disturb the air flow to generate large noise, the fillet is large and cannot be cut effectively, the invalid circulation is caused to influence the air quantity, the reasonable fillet can reduce the noise and can also block the internal circulation air flow, and therefore the radius R of the selected fillet satisfies 2 mm and is not less than R and not more than 8 mm.

In a further embodiment of the application, a sound-insulating chamber is provided outside the circumferential wall, said sound-insulating chamber being arranged around said circumferential wall.

In the scheme, the sound insulation cavity can absorb noise generated by impacting the peripheral wall, so that the purpose of reducing noise is achieved.

In a further embodiment of the application, the width dimensions a of the sound-insulating cavities each satisfy 8 mm ≦ a ≦ 16 mm in a direction perpendicular to the rotational axis.

In the scheme, when the value a is too large, the volume of the main machine is too large. When the value a is too small, a better sound insulation effect cannot be achieved, and therefore, in this embodiment, when the value a is greater than or equal to 8 mm and less than or equal to 16 mm, the sound insulation cavity can have a better sound insulation and noise reduction effect, and the volume of the host machine cannot be excessively increased.

In the further embodiment of this application, still be provided with the water conservancy diversion muscle in the heat dissipation intracavity, the water conservancy diversion muscle extends to the air outlet along the air-out direction, and the water conservancy diversion muscle is used for guiding the air current that is close to the perisporium in the heat dissipation intracavity inwards.

In the scheme, the airflow in the high-pressure state outside the annular air channel is guided towards the inner side by the guide ribs, so that the air pressure at each position in the air channel is better balanced along the radial direction of the annular air channel, the fan flow is favorably improved, and the heat radiation performance of the whole food processor is improved.

In the further embodiment of this application, the second wind channel that the water conservancy diversion muscle separated into the first wind channel that is close to the perisporium and deviates from the perisporium with the heat dissipation chamber, along the air-out direction, the cross sectional area of first wind channel perpendicular to air-out direction all is less than the cross sectional area of second wind channel perpendicular to air-out direction.

In the above scheme, after the air current is guided to the position close to the inboard by the water conservancy diversion muscle, the air current close to inboard department can have bigger space, and the piling up of the air current that prevents has promoted the radiating effect.

The application provides a food preparation machine, the contained angle alpha through making the first water conservancy diversion wall vertical plane of perisporium is the acute angle for when the air current derives the heat dissipation chamber, receive certain pressure, let the air current velocity of flow who derives the heat dissipation chamber increase, make the air current of heat dissipation intracavity derive the heat dissipation chamber more easily, promoted the radiating efficiency, optimized the radiating effect.

In addition, in a further embodiment of the application, a fillet is arranged at the joint of the second flow guide wall and the middle wall, the fillet plays a role in dividing air flow, the fan blade is blown out of the air flow for cutting, and the air flow is prevented from generating an internal circulation effect.

Furthermore, in the present application, an included angle β between the second flow guide wall and the vertical plane is also an acute angle, which is more convenient to help the airflow to smoothly discharge out of the volute compared to the scheme in the prior art in which the included angle β between the second flow guide wall and the vertical plane is a right angle.

Drawings

The utility model will be further described with reference to the accompanying drawings in which:

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

FIG. 2 is a schematic diagram of a mainframe according to an embodiment of the present invention;

FIG. 3 is a perspective view of a backplane in a host according to an embodiment of the present invention;

FIG. 4 is a bottom view of a bottom plate of a host according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an air duct structure of a host according to an embodiment of the present invention;

fig. 6 is a schematic view of an air duct structure of a host according to another embodiment of the present invention.

Detailed Description

Wall breaking machines are common food processing machines. The broken wall machine is including the crushing unit who is located the top and the host computer that is located the below. The host machine of the wall breaking machine is provided with an annular heat dissipation cavity, and the peripheral wall positioned outside the heat dissipation cavity defines an air outlet. The wall surface of the existing peripheral wall at the air outlet is tangent to the inner arc-shaped wall surface, and at the moment, when the airflow in the heat dissipation cavity is led out from the wall surface at the air outlet, the pressure is gradually reduced, so that on one hand, the airflow speed is reduced, the airflow is easy to accumulate in the heat dissipation cavity, and the leading-out efficiency of the airflow is low. On the other hand, the air flow at the air outlet is suddenly reduced in pressure, so that turbulence is easily generated at the air outlet, airflow blockage is caused, and the air outlet efficiency is influenced.

In view of this, referring to fig. 1 to 6, the present application provides a food processor 10 having an advantage of better air-out effect. It should be noted that the food processor 10 is illustrated as a wall breaking machine for convenience of description, and the food processor 10 is not limited to a wall breaking machine.

The wall breaking machine in this embodiment includes a main machine 200 and a crushing assembly. The crushing assembly comprises a crushing cup 100, a crushing knife arranged in the crushing cup 100 and a motor used for driving the crushing knife, wherein the motor is arranged in the host 200. The motor in the main body 200 rotates the grinding blade in the grinding cup 100 by driving the grinding blade, thereby processing the food in the grinding cup 100.

The host 200 includes a heat dissipation chamber 210 for dissipating heat, a fan blade 220 is disposed in the heat dissipation chamber 210, the host 200 includes a peripheral wall 230 for defining the heat dissipation chamber 210, the peripheral wall 230 defines an air outlet 250, along a rotation direction of the fan blade 220, the peripheral wall 230 includes a first flow guiding wall 231 located at a rear end, an included angle α between the first flow guiding wall 231 and a vertical plane 270 is an acute angle, wherein the vertical plane 270 includes a front side edge of the first flow guiding wall 231 and a rotation axis of the fan blade 220. An included angle between the first flow guide wall and the vertical plane 270 in the prior art is a right angle, that is, the first flow guide wall is tangent to the arc-shaped wall surface connected with the first flow guide wall.

The utility model provides a food processor 10, the contained angle alpha through making the first water conservancy diversion wall 231 vertical plane 270 of perisporium 230 be the acute angle for when the air current derives heat dissipation chamber 210, receive certain pressure, let the air current velocity of flow who derives heat dissipation chamber 210 increase, make the air current in the heat dissipation chamber 210 derive heat dissipation chamber 210 more easily, promoted the radiating efficiency, optimized the radiating effect.

A large number of experiments prove that when the included angle alpha is larger, the local pressure at the air outlet 250 is small, and turbulent flow is easy to generate to influence air outlet. If the included angle is too small, kinetic energy loss is easily caused. The experimental result shows that when the alpha is larger than or equal to 84 degrees and smaller than or equal to 88 degrees (namely the alpha can be 84 degrees, 85 degrees, 86 degrees, 87 degrees, 88 degrees and the like), the air outlet effect is optimal. Preferably, α is 86 ° most preferred.

Referring to fig. 4 to 5, the peripheral wall 230 further includes a second guide wall 233 at the front end, and an included angle β between the second guide wall 233 and the vertical plane 270 is an acute angle (in the present application, the angle β is an angle in a direction close to the motor). Compared with the scheme that the second guide wall and the vertical plane 270 are at right angles in the prior art, the flow guide wall is more convenient to facilitate smooth air flow to be discharged out of the volute.

Through a large number of experimental demonstration, the large included angle beta hinders the air flow to be discharged, and the small included angle beta easily generates low-pressure turbulence. The experimental result shows that when the beta is more than or equal to 72 degrees and less than or equal to 84 degrees (namely the beta can be 72 degrees, 75 degrees, 78 degrees, 81 degrees, 84 degrees and the like), the air outlet effect is optimal. Preferably, β is 78 °.

In a further embodiment of the present application, the circumferential wall 230 further comprises an intermediate wall 232 having an arc shape, one end of the intermediate wall 232 being connected to the first guide wall 231 and the other end being connected to the second guide wall 233. The junction of the second guide wall 233 and the middle wall 232 is provided with a rounded corner. The fillet plays the effect of cutting apart the air current, blows out the air current with the fan blade and cuts, avoids the air current to produce internal circulation's effect. Further, the round angle is sharp, the air flow can be disturbed to generate larger noise, the round angle is large, effective cutting cannot be performed, the invalid circulation is caused to influence the air quantity, the round angle is reasonable, the noise can be reduced, and the internal circulation air flow can be blocked, so that the radius R of the selected round angle is more than or equal to 2 mm and less than or equal to 8 mm (namely, the R can be more than or equal to 2 mm, 4 mm, 6 mm, 8 mm and the like). Preferably, the optimal value of R is 3.5 mm.

The air flow in the heat dissipation chamber 210 collides with the peripheral wall 230 while flowing, thereby generating a certain noise. Referring to fig. 3 to 5, in order to reduce noise, in one embodiment, a sound-proof chamber 240 is provided outside the peripheral wall 230, and the sound-proof chamber 240 is disposed around the outside of the peripheral wall 230. The sound-insulating chamber 240 can absorb noise generated by the impact of the peripheral wall 230, so as to reduce noise. Further, along the direction perpendicular to the rotation axis, the width dimension a of the sound-insulating cavity 240 satisfies a range of 8 mm ≦ a ≦ 16 mm (i.e., a may be 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, etc.). Preferably, a is 12 mm.

Referring to fig. 6, in another embodiment, a flow guiding rib 260 is further disposed in the heat dissipation cavity 210, the flow guiding rib 260 extends to the air outlet 250 along the air outlet direction, and the flow guiding rib 260 is used for guiding the airflow in the heat dissipation cavity 210 close to the peripheral wall 230 inward. It should be noted that, because the airflow in the heat dissipation chamber 210 is conducted in an annular shape, the specific direction of the "air-out direction" in the present application is not fixed, and is different according to the air-out position. The definition of "the flow guiding rib 260 is disposed in the heat dissipating cavity 210 and extends along the air outlet direction" indicates that the flow guiding rib 260 extends along the flow direction of the air flow in the air duct.

The specific shape of the flow guiding rib 260 may depend on the actual requirement, and only needs to be able to guide the airflow close to the outer circumferential wall 230 inwards. Specifically, the air guiding rib 260 may extend along an arc line or a straight line or a broken line, in this embodiment, the air guiding rib 260 extends along an arc line, further, the air guiding rib 260 extends along an archimedes spiral line, and the spiral center is the center of the heat dissipation cavity 210. When the heat dissipation cavity 210 is a circular channel, the spiral center of the flow guiding rib 260 is the center of the heat dissipation cavity 210.

The number of the flow guiding ribs 260 may be one or more, and when the number of the flow guiding ribs 260 is more than one, each flow guiding rib 260 is used for guiding the airflow of the heat dissipation cavity 210 close to the outer circumferential wall 230 inwards to balance the air pressure inside and outside the heat dissipation cavity 210. And when the quantity of water conservancy diversion muscle 260 is a plurality of, the shape of each water conservancy diversion muscle 260 can be the same also can not be the same, and the shape of each water conservancy diversion muscle 260 is decided according to specific demand.

The heat dissipation chamber 210 further includes first and second annular walls at upper and lower ends of the peripheral wall 230. The first annular wall is disposed opposite to the second annular wall, and the first annular wall, the second annular wall and the peripheral wall 230 together define the aforementioned heat dissipation chamber 210. Specifically, the flow guiding rib 260 is connected to only one of the first annular wall and the second annular wall, or may be connected to both the first annular wall and the second annular wall. In this embodiment, the flow guiding ribs 260 are connected to the first annular wall and the second annular wall at the same time. When the number of the flow guiding ribs 260 is plural, a part of the flow guiding ribs 260 may be connected to one of the first annular wall and the second annular wall, and the other part of the flow guiding ribs 260 may be connected to the first annular wall and the second annular wall at the same time, or all of the flow guiding ribs 260 may be connected to the first annular wall and the second annular wall respectively.

When the flow guiding ribs 260 are connected to both the first annular wall and the second annular wall, the flow guiding ribs 260 may be perpendicular to the first annular wall and the second annular wall, or may be disposed obliquely to the first annular wall and the second annular wall. In this embodiment, the flow guiding ribs 260 are disposed obliquely to the first annular wall and the second annular wall.

When the heat dissipation chamber 210 is annular, the air pressure of the air flow near the peripheral wall 230 in the heat dissipation chamber 210 is greater than the air pressure of the air flow near the inner peripheral wall 230, so that the heat dissipation effect of the air flow near the peripheral wall 230 is poor, the heat dissipation effect of the air flow near the inner peripheral wall 230 is relatively better, and the overall heat dissipation effect is not ideal. Through set up water conservancy diversion muscle 260 in annular wind channel to utilize water conservancy diversion muscle 260 to lead the air current of annular wind channel outside high pressure state towards the inboard, make along the radial of annular wind channel, the atmospheric pressure of each department is better balanced in the wind channel, helps improving fan 220 flow, thereby promotes food preparation machine 10 holistic heat dispersion. Furthermore, because the pressure at each position in the air duct is more balanced, the wind noise is lower, and the air outlet effect is better.

The air guiding ribs 260 divide the heat dissipation chamber 210 into a first air passage 211 close to the peripheral wall 230 and a second air passage 212 away from the peripheral wall 230. In one embodiment, along the air outlet direction, the cross-sectional area of the first air duct 211 perpendicular to the air outlet direction is smaller than the cross-sectional area of the second air duct 212 perpendicular to the air outlet direction. When adopting above-mentioned structure, water conservancy diversion muscle 260 guides the air current to the position back that is close to the inboard, and the air current that is close to inboard department can have bigger space, the piling up of air current that prevents, has promoted the radiating effect.

In order to achieve the purpose that the cross-sectional area of the first air duct 211 perpendicular to the air outlet direction is smaller than the cross-sectional area of the second air duct 212 perpendicular to the air outlet direction, in one scheme, the distance from the air guiding rib 260 to the inner side can be larger than the distance from the air guiding rib 260 to the peripheral wall 230 along the air outlet direction. In another scheme, the distance between part of the first annular wall and the second annular wall of the first air duct 211 may be greater than the distance between part of the first annular wall and the second annular wall of the second air duct 212 in the air outlet direction. In this embodiment, the first annular wall and the second annular wall are parallel to each other, and the distance from the flow guiding rib 260 to the inner side along the air outlet direction is greater than the distance from the flow guiding rib 260 to the peripheral wall 230.

In the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims

1. The utility model provides a food preparation machine, includes host computer and crushing unit, crushing unit is including smashing the cup, locating the crushing sword in smashing the cup and being used for driving the motor of smashing the sword, the motor is located in the host computer, the host computer is including being used for radiating heat dissipation chamber, the heat dissipation intracavity is equipped with the flabellum, a serial communication port, the host computer is including being used for injecing the perisporium in heat dissipation chamber, the air outlet is injecing to the perisporium, follow the direction of rotation of flabellum, the perisporium is including the first water conservancy diversion wall that is located the rear end, first water conservancy diversion wall is the acute angle with vertical plane's contained angle alpha, wherein, vertical plane crosses the preceding side of first water conservancy diversion wall and the axis of rotation of flabellum.

2. The food processor of claim 1, wherein α is 84 ° or more and 88 ° or less.

3. The food processor of claim 1, wherein the peripheral wall further comprises a second deflector wall at the forward end, the second deflector wall being at an acute angle β to the vertical plane.

4. The food processor of claim 3, wherein β is 72 ° or more and 84 ° or less.

5. The food processor of claim 3, wherein the peripheral wall further comprises an intermediate wall, one end of the intermediate wall being connected to the first deflector wall and the other end being connected to the second deflector wall; and a fillet is arranged at the joint of the second flow guide wall and the middle wall.

6. The food processor of claim 5, wherein the radius R of the rounded corner satisfies 2 mm ≦ R ≦ 8 mm.

7. The food processor of claim 1, wherein a sound insulating cavity is provided outside the peripheral wall, the sound insulating cavity being disposed around the outside of the peripheral wall.

8. The food processor of claim 7, wherein the width dimensions a of the acoustical isolation chamber, in a direction perpendicular to the rotational axis, each satisfy a range of 8 mm ≦ a ≦ 16 mm.

9. The food processor as defined in claim 1, wherein a flow guiding rib is further disposed in the heat dissipation chamber, the flow guiding rib extends to the air outlet along an air outlet direction, and the flow guiding rib is used for guiding the air flow in the heat dissipation chamber close to the peripheral wall inwards.

10. The food processor as defined in claim 9, wherein the flow guiding rib divides the heat dissipation chamber into a first air duct near the peripheral wall and a second air duct away from the peripheral wall, and a cross-sectional area of the first air duct perpendicular to the air-out direction is smaller than a cross-sectional area of the second air duct perpendicular to the air-out direction along the air-out direction.