阅读说明：本技术 一种降噪效果好的食品加工机 (Food preparation machine with good noise reduction effect ) 是由 朱泽春 曹峰 陶琳 刘远 于 2019-09-10 设计创作，主要内容包括：本发明涉及一种降噪效果好的食品加工机,包括机座、杯体与杯盖,机座内设有电机,杯体设于机座上,杯体内底部设有由所述电机驱动的粉碎刀,杯体的内侧壁设有至少两条与杯体一体成型的导流筋,杯盖盖合在杯体的口部,所述杯体包括第一同心圆组成的上部,由第二同心圆组成的下部,以及连接在上部和下部之间的偏心过渡部,所述第一同心圆的最小直径大于第二同心圆的最大直径,且第一同心圆和第二同心圆不在同一轴线上。采用本技术方案使得设备工作时上部和下部液流的回转中心不在同一轴上,两股液流的作用使得旋涡发生一定扭曲,粉碎刀作用区域的下部液流产生的噪声会在扭曲的旋涡中发生反射和折射损失一部分能量,从而降低了噪声的强度。(The invention relates to a food processing machine with good noise reduction effect, which comprises a machine base, a cup body and a cup cover, wherein a motor is arranged in the machine base, the cup body is arranged on the machine base, a crushing knife driven by the motor is arranged at the bottom in the cup body, at least two flow guide ribs integrally formed with the cup body are arranged on the inner side wall of the cup body, the cup cover covers the opening of the cup body, the cup body comprises an upper part consisting of first concentric circles, a lower part consisting of second concentric circles and an eccentric transition part connected between the upper part and the lower part, the minimum diameter of the first concentric circles is larger than the maximum diameter of the second concentric circles, and the first concentric circles and the second concentric circles are not on the same axis. By adopting the technical scheme, when the equipment works, the rotation centers of the upper liquid flow and the lower liquid flow are not on the same shaft, the vortex is twisted to a certain extent under the action of the two liquid flows, and noise generated by the lower liquid flow in the action area of the crushing knife can be reflected and refracted in the twisted vortex to lose part of energy, so that the intensity of the noise is reduced.)

1. The utility model provides a food preparation machine that noise reduction effect is good, includes frame, cup and bowl cover, is equipped with the motor in the frame, and on the frame was located to the cup, the bottom was equipped with by motor drive's crushing sword, the inside wall of cup were equipped with two at least water conservancy diversion muscle with cup integrated into one piece, and the bowl cover lid closes the oral area at the cup, its characterized in that, the cup includes the upper portion that first concentric circles is constituteed, the lower part of constituteing by the second concentric circles to and connect the eccentric transition portion between upper portion and lower part, the minimum diameter of first concentric circles is greater than the maximum diameter of second concentric circles, and first concentric circles and second concentric circles are not on same axis.

2. The food processor as claimed in claim 1, wherein the at least two ribs have different heights at their lower ends.

3. The food processor as claimed in claim 2, wherein the height of the lower end of the guide rib is reduced as the radial distance between the guide rib and the central axis of the lower portion of the cup body is reduced.

4. A food processor as defined in claim 1, wherein a handle is provided on the outer side wall of the cup body, the upper end of the handle being connected to the upper portion of the cup body, and the lower end of the handle being at least partially connected to the eccentric transition portion.

5. A food processor as claimed in any one of claims 1 to 4, wherein the flow-guiding ribs comprise flow-deflecting ribs, an eccentric plane defined by a central axis of the upper portion and a central axis of the lower portion of the cup body extends through the flow-deflecting ribs, and the radial width of the flow-deflecting ribs is greater than the radial width of the other flow-guiding ribs.

6. The food processor as claimed in claim 5, wherein the flow guide rib is disposed symmetrically about an eccentric plane defined by a central axis of the upper portion and a central axis of the lower portion of the cup body.

7. The food processor with good noise reduction effect as claimed in claim 5, wherein the eccentric distance between the central axis of the upper part and the central axis of the lower part of the cup body is d, the radial width of the deflecting rib is S1, the ratio of S1 to d is in the range of 2-6, d is 3 mm-15 mm, and S1 is in the range of 15 mm-40 mm.

8. The food processor of claim 7, wherein the flow deflecting rib has a flow-facing surface and a flow-back surface that form an included angle of 30 ° to 120 °.

9. The food processor of claim 5, wherein the flow deflecting rib has a concave Archimedes spiral surface on a flow-facing surface.

10. A food processor as claimed in any one of claims 1 to 4, wherein the chopping knife comprises a blade assembly comprising a pair of upwardly extending upper blade arms and a pair of downwardly extending lower blade arms extending radially from the upper blade arms.

Technical Field

The invention relates to the field of household appliances, in particular to a food processor with a good noise reduction effect.

Background

With the continuous improvement of living standard, food processors, especially cooking devices with ultra-high rotating speed, are gradually applied to life to meet different food processing requirements. However, due to the increase of the rotation speed of the motor, the stirring tool driven by the motor can contact with food and crush the food in a very short time, which causes higher noise, and the middle position of the food processor during working is a hollow vortex formed by the rotating blade, and the hollow vortex is in a horn shape towards the cup mouth, which causes the noise to be more concentrated and spread towards the cup mouth, so that the noise on the sense of the user is increased.

Disclosure of Invention

The invention aims to at least partially solve the technical problems and provides a cooking appliance with stable and reliable material conveying, in particular a cooking appliance with a screw conveying structure capable of reducing material clamping.

The technical scheme adopted by the invention is as follows:

the utility model provides a food preparation machine that noise reduction effect is good, includes frame, cup and bowl cover, is equipped with the motor in the frame, and on the frame was located to the cup, the bottom was equipped with by in the cup motor drive's crushing sword, the inside wall of cup be equipped with at least two with cup integrated into one piece's water conservancy diversion muscle, the bowl cover lid closes the oral area at the cup, the cup includes the upper portion that first concentric circles is constituteed, the lower part of constituteing by the second concentric circles to and connect the eccentric transition portion between upper portion and lower part, the minimum diameter of first concentric circles is greater than the maximum diameter of second concentric circles, and first concentric circles and second concentric circles are not on same axis.

Furthermore, the heights of the lower ends of at least two flow guide ribs are different.

Furthermore, the height of the lower end of the flow guide rib is reduced along with the reduction of the radial distance between the flow guide rib and the central shaft at the lower part of the cup body.

Furthermore, a handle is arranged on the outer side wall of the cup body, the upper end of the handle is connected with the upper portion of the cup body, and at least part of the lower end of the handle is connected with the eccentric transition portion.

Furthermore, the water conservancy diversion muscle includes the drift muscle, the eccentric plane that the center axis on cup upper portion and the central axis of lower part confirmed runs through the drift muscle, just the radial width of drift muscle is greater than the radial width of other water conservancy diversion muscle.

Furthermore, the diversion ribs are symmetrically arranged around an eccentric plane determined by a central axis of the upper part of the cup body and a central axis of the lower part of the cup body.

Furthermore, the eccentricity between the central axis of the upper part of the cup body and the central axis of the lower part of the cup body is d, the radial width of the bias flow rib is S1, the ratio range of S1 to d is 2-6, the value of d is 3-15 mm, and the value of S1 is 15-40 mm.

Furthermore, the included angle between the incident flow surface and the back flow surface of the bias flow rib ranges from 30 degrees to 120 degrees.

Furthermore, the flow-facing surface of the flow deflecting rib is an inward-concave Archimedes spiral surface.

Further, the shredding knife includes a blade assembly including a pair of upper blade arms extending upwardly and a pair of lower blade arms extending downwardly and then radially.

Adopt above-mentioned technical scheme's beneficial effect to include:

1) through with cup upper portion and lower part skew certain distance, can make the centre of gyration of upper portion and lower part liquid stream not be on same axle under the effect of cup wall, the effect of two strands of liquid streams makes the vortex take place certain distortion, and the noise that the lower part liquid stream in crushing sword effect region produced can take place reflection and refraction loss partly energy in the vortex of distortion to the intensity of noise has been reduced. In addition, the upper part and the lower part of the cup body deviate, so that the liquid in the cup body rolls when being crushed, the contact probability of the food materials and the blades can be improved to a certain extent, and the food material crushing rate is improved.

2) The heights of the lower ends of the flow guiding ribs are set to be different, so that the flow velocity of liquid flow at the bottom of the cup body is divided into a plurality of layers when the crushing knife rotates to drive the liquid flow to move. Specifically, the fastest laminar flow is positioned at the bottom close to the side of the blade, and is directly driven by the blade without receiving the speed reduction effect of the flow guide rib, so that the speed is fastest; the flow velocity gradually slows down as the increasing of the height is influenced by the flow guide ribs, and laminar vortices are formed among the layers due to the fact that the velocities of the layers are different and the layers are in mutual contact, so that the vortices are helpful for food materials to roll up and down, and the food material crushing rate is improved.

3) Because the crushing is positioned at the center of the bottom of the cup body, the liquid near the blade has higher flow velocity under the driving of the blade, but the speed difference between the liquid flow and the crushing blade is smaller, in order to improve the crushing efficiency of the crushing blade, the height of the lower end of the flow guide rib needs to be reduced to reduce the liquid flow velocity, and the speed difference between the blade and the liquid needs to be increased.

4) Through will the lower extreme of handle is partial at least to be located eccentric transition portion, especially the position that the lower extreme of handle is connected with the cup is the inclined plane transition for the higher frit of temperature can flow through from the handle section as fast as possible in order to be full of the cavity of handle position, improves the yields of cup. In addition, the center of the cup body can be integrally moved downwards, and the stability of the cup body is improved.

5) Through setting up the drift muscle, can carry out the vortex of reinforceing to the thick liquid of rotation, destroy the regular rotary motion that original thick liquid hugs closely the inside wall, the flow direction of thick liquid takes place to turn to and forms the eccentric liquid stream that centre of gyration is not in the stirring center. At the moment, the cup body is internally provided with a conventional liquid flow taking the stirring center as the center and an eccentric liquid flow not taking the stirring center as the center, the two liquid flows are interacted, so that the turbulence inside the cup body is increased, the sound color and frequency of noise are continuously changed, the resonance effect of the highest noise is disturbed, the noise reduction effect is realized, meanwhile, the area of the central hollow vortex can be reduced, and the noise diffusion effect is reduced. In addition, the eccentric surface determined by the central axis of the upper part of the cup body and the central axis of the lower part of the cup body penetrates through the bias flow rib, so that the distance between the bias flow rib and the central axis of the lower part of the cup body is maximized, and the bias flow effect is improved. In order to further improve the bias flow effect, the flow guide ribs are symmetrically arranged on an eccentric plane determined by the central axis of the upper part and the central axis of the lower part of the cup body.

6) The ratio range of S1 to d is limited to 2-6, d is 3-15 mm, and S1 is 15-40 mm, so that the stability of equipment can be kept, and a good noise reduction effect can be achieved. If the ratio range of the S1 to d is less than 2, the bias effect of the bias rib is weakened, and the noise reduction effect is affected; if the ratio of S1 to d is greater than 6, the impact force of the liquid flow impacting the cup body is increased to generate vibration during operation, which may cause instability of the machine equipment.

7) By limiting the angle to 30 ° -120 °, the noise reduction effect can be further enhanced. If the angle is larger than 120 degrees, the flow guide surface is gentle after the angle is combined with the cup body, water flow moves along the flow guide ribs, the centripetal movement effect of the water flow is not obvious, vortex deviation cannot be effectively driven, the shape of the vortex is changed, and therefore the noise reduction effect is not obvious; if the angle is too little, then rivers impact the vortex muscle and can form great splash, and the cup is inside can form splash noise, leads to the noise increase.

8) The flow-deflecting rib is arranged on the cup wall, and the flow-deflecting rib is arranged on the cup wall.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

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

FIG. 2 is a schematic view of a sectional structure of a cup body during a crushing process according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 2;

FIG. 4 is a schematic view of the structure in the direction B-B in FIG. 2;

FIG. 5 is a schematic cross-sectional view of a cup according to a first embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a cup according to a second embodiment of the present invention;

FIG. 7 is a schematic view of the structure in the direction C-C of FIG. 6;

FIG. 8 is a schematic view of the structure of FIG. 6 in the direction D-D;

FIG. 9 is a schematic view showing the movement state of the liquid flow during pulverization in the second embodiment of the present invention;

FIG. 10 is a schematic view of a partial cross-sectional structure of a cup according to a third embodiment of the present invention;

fig. 11 is a schematic structural view of a crushing blade in the fourth embodiment of the present invention.

Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 to 11 is:

100 machine base, 200 cup body, 300 cup cover, 400 cutter head component, 110 motor, 210 cup wall, 220 handle, 221 first extension part, 222 holding hand part, 223 second extension part, 230 water nozzle, 240 diversion rib, 241 deflection rib, 241a incident flow surface, 241b back flow surface, 242 first diversion rib, 243 second diversion rib, 260 first concentric circle, outer contour line 262, inner contour line 261, 411 upper blade arm, 412 lower blade arm and 413 cutter shaft.

Detailed Description

The technical solutions in the embodiments of the present application will be described below in detail and completely with reference to the accompanying drawings in the embodiments of the present application.

It is to be understood that the described embodiments are merely some embodiments and not all embodiments of the present application, and that the following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application and its applications.