CN215914266U

CN215914266U - Cooking machine and noise reduction air duct structure thereof

Info

Publication number: CN215914266U
Application number: CN202121437137.5U
Authority: CN
Inventors: 侯康
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-03-01
Anticipated expiration: 2031-06-25

Abstract

The application provides cooking machine's wind channel structure and cooking machine of making an uproar falls. The noise reduction air duct structure comprises a base and an air baffle. The base includes edge portion upper isolation portion and the downward convex lower isolation portion of follow mid portion, the edge portion with be equipped with the exhaust airway down between the isolation portion, the isolation portion is equipped with down with the intercommunication mouth of exhaust airway intercommunication. Go up the isolation portion deep bead and include the air exit, the exhaust airway intercommunication the air intake with the air exit, just the air exit with the intercommunication mouth is followed the circumference of through-hole separates. In the scheme, when the air flow enters the air exhaust duct from the communicating port, the direction needs to be changed, and the air flow flows to the air exhaust port along the air exhaust duct, so that the flowing speed of the air flow is reduced, the kinetic energy is weakened, and the noise is reduced.

Description

Cooking machine and noise reduction air duct structure thereof

Technical Field

The application relates to the technical field of small household appliances, in particular to a noise reduction air channel structure of a food processor and the food processor.

Background

The high-speed rotation of motor in the cooking machine can produce a large amount of heats, consequently, the inside of cooking machine is equipped with the heat dissipation wind channel usually to realize the heat dissipation of motor. At present, a heat dissipation air duct utilizes heat dissipation fan blades on a motor to guide air, the heat dissipation fan blades rotate at a high speed along with the motor, the higher the rotating speed of the motor is, the larger the air volume is, the larger the noise is, and the larger the heat dissipation airflow noise causes poor user experience.

SUMMERY OF THE UTILITY MODEL

The application provides an air channel structure and cooking machine of making an uproar falls of cooking machine can realize the motor heat dissipation and reduce the noise.

The utility model provides a wind channel structure of making an uproar falls of cooking machine, includes:

the base comprises a base body part and a lower isolation part connected with the base body part, the base body part comprises a middle part and an edge part which are connected, the edge part is provided with an air inlet, the middle part is provided with a through hole which is communicated up and down, the lower isolation part of the upper isolation part protrudes downwards from the middle part and surrounds the through hole, an air exhaust channel is arranged between the lower isolation part of the lower isolation part and the edge part, and the lower isolation part is provided with a communication port communicated with the air exhaust channel; and

the deep bead, assemble in the downside of middle part, with the isolation part encloses jointly down becomes the exhaust airway, the deep bead includes the air exit, the air exit with the exhaust airway intercommunication, just the air exit with the intercommunication mouth is followed the circumference of through-hole separates. When the heat dissipation fan blade rotates, external low-temperature airflow enters from the air inlet, flows through the heat dissipation air duct and is discharged from the air outlet, and therefore circulating heat dissipation of the motor is achieved. And the communicating port is circumferentially separated from the air outlet, when the air flow enters the air outlet from the communicating port, the direction of the air flow needs to be changed, and the air flow flows to the air outlet along the air outlet.

Optionally, the air outlet and the communication port are spaced by 180 degrees along the circumferential direction of the through hole. So, the intercommunication mouth is the farthest with the air exit interval distance, and the air current flow path is long, and the kinetic energy of air current is further weakened, and noise reduction effect is better.

Optionally, a concave portion is disposed at a position of the edge portion facing the communication port, and the concave portion is concave from a surface of the edge portion facing the communication port to a side away from the communication port. When the air current gets into the exhaust airway from the intercommunication mouth, can get into the depressed part at first, the volume of depressed part department is great, can regard as buffer structure, reduces the flow velocity and the pressure of air current to reduce kinetic energy.

Optionally, the edge portion further includes a protruding portion disposed on at least one side of the recessed portion, the protruding portion protrudes into the air exhaust duct and is located between the communication port and the air exhaust port. The air current flows to the in-process of air exit from the intercommunication mouth, can collide with the bulge, changes the flow direction of air current, plays the effect that weakens air current kinetic energy to play the effect of making an uproar.

Optionally, a noise reduction rib is arranged on the surface of one side, facing the lower isolation portion, of the edge portion, and the noise reduction rib protrudes towards the side close to the lower isolation portion. The noise reduction ribs are used for reducing the flow velocity of the air flow, weakening the kinetic energy of the air flow and playing a role in noise reduction.

Optionally, the noise reduction air duct structure further comprises a connecting structure arranged in the exhaust duct, and the wind shield is connected to the connecting structure. The connecting structure is used for connecting the wind shield and the base on one hand, and can also be used as a noise reduction structure for weakening the kinetic energy of air flow on the other hand.

Optionally, the wind deflector includes the base plate and follows the edge of base plate upwards extends the extension board, the edge part is equipped with the opening, the extension board set up in opening department, the extension board includes the air exit. The wind shield has simple structure and convenient processing and manufacturing.

Optionally, the base further comprises an upper isolation part, the upper isolation part protrudes upwards from the middle part and surrounds the through hole, a space surrounded by the upper isolation part is a motor accommodating space, and the motor accommodating space is communicated with the air inlet. The motor is accommodated in the motor accommodating space, and when airflow flows through the motor accommodating space, the full exchange of the motor and low-temperature airflow can be realized, and the motor is ensured to be in a normal working state.

A food processer comprises a host, wherein the host comprises a motor, a heat dissipation fan blade connected with a rotating shaft of the motor and a noise reduction air channel structure as described in any one of the above, the heat dissipation fan blade is assembled in a space surrounded by a lower isolation part, and the range value of the minimum distance between the radial outermost end of the heat dissipation fan blade and the inner wall of the lower isolation part is 3-10 mm; the range value of the minimum distance between the bottommost end of the heat dissipation fan blade and the inner side bottom surface of the wind shield is 3-10 mm. Within the size range, the gap between the heat dissipation fan blade and the lower isolation part is not too small, and when the heat dissipation fan blade rotates, the air flow can be ensured not to generate vortex at the position, so that the noise is reduced.

The technical scheme provided by the application can at least achieve the following beneficial effects:

the application provides an air channel structure and cooking machine of making an uproar falls of cooking machine, wherein, forms the exhaust airway between the edge part of base and the lower isolation part, and lower isolation part is equipped with the intercommunication mouth that supplies the air current to get into the exhaust airway, and the deep bead includes the air exit, and the intercommunication mouth separates along the circumference of through-hole with the air exit. When the air flow enters the air exhaust duct from the communicating port, the direction of the air flow needs to be changed, and the air flow flows to the air exhaust port along the air exhaust duct, so that the flowing speed of the air flow is reduced, the kinetic energy is weakened, and the noise is reduced.

Drawings

Fig. 1 is a schematic view of a food processor according to an exemplary embodiment of the present application;

fig. 2 is a cross-sectional view of the food processor shown in fig. 1;

fig. 3 is an exploded view of the food processor shown in fig. 1;

FIG. 4 is a schematic view of the base shown in FIG. 3 inverted;

FIG. 5 is an exploded view of the base and windshield;

FIG. 6 is an enlarged view of portion A of FIG. 2;

fig. 7 is still another cross-sectional view of the food processor shown in fig. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with aspects of the present application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and if only "a" or "an" is denoted individually. "plurality" or "a number" means two or more. Unless otherwise specified, "front", "back", "lower" and/or "upper", "top", "bottom", and the like are for ease of description only and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a food processor 100 according to an exemplary embodiment of the present application. Fig. 2 is a sectional view of the food processor 100 shown in fig. 1.

The food processor 100 provided by the embodiment of the present application includes a main unit 10 and a cup assembly 20 detachably assembled to the main unit 10. The main machine 10 comprises a motor 11, the cup assembly 20 comprises a stirring blade 21, the upper end of a rotating shaft 110 of the motor 11 is in transmission connection with the stirring blade 21, and the stirring blade 21 is driven to rotate so as to stir and crush food materials.

The host 10 further includes a heat dissipating fan 12 and a noise reduction duct structure 13, wherein the heat dissipating fan 12 is connected to a lower end of a rotating shaft 110 of the motor 11 and rotates together with the rotating shaft 110. The noise reduction air duct structure 13 includes a heat dissipation air duct 130, and the heat dissipation fan blade 12 is disposed in the heat dissipation air duct 130. In the process of rotation of the heat dissipation fan blade 12, external low-temperature airflow enters the heat dissipation air duct 130, flows along a predetermined direction, exchanges heat with the motor 11, and discharges high-temperature airflow after heat exchange, thereby achieving heat dissipation of the motor 11. Also, the noise reduction duct structure 13 can reduce noise generated when the air flow passes through the heat dissipation duct 130, which will be described in detail below.

Referring to fig. 3 and 4, fig. 3 is an exploded view of the food processor 100 shown in fig. 1. Fig. 4 is a schematic view showing the base 131 shown in fig. 3 upside down.

The noise reduction duct structure 13 includes a base 131, a large body 132, and a wind shield 133. The base 131 includes a base portion 1310, and upper and

lower partitions

1311 and 1312 connected to the base portion 1310. The base portion 1310 includes a middle portion 13100 and an edge portion 13101 connected to each other, the edge portion 13101 is provided with air inlets 13101a, and the number of the air inlets 13101a is not limited and may be one or more. In this embodiment, two air inlets 13101a are provided, and the two air inlets 13101a are disposed at an interval of 180 °. The specific structure of the air inlet 13101a is not limited, and may be a plurality of strip-shaped holes arranged in parallel.

The middle part 13100 is provided with a through hole 13100a penetrating up and down, the upper isolation part 1311 protrudes upwards from the middle part 13100 and is arranged around the periphery of the through hole 13100a, a space surrounded by the upper isolation part 1311 is a motor accommodating space 13110 (refer to fig. 2), the motor accommodating space 13110 is used for accommodating the motor 11, and the motor 11 is supported and assembled in the upper isolation part 1311. The lower isolation part 1312 protrudes downwards from the middle part 13100 and is arranged around the periphery of the through hole 13100a, and a space surrounded by the lower isolation part 1312 is used for accommodating the heat dissipation fan blade 12. That is, the lower end of the rotating shaft 110 of the motor 11 passes through the through hole 13100a and is connected to the heat dissipation fan blade 12. The edge portion 13101 is disposed around the lower partition 1312 with a gap formed as an exhaust duct 1301, with the lower partition 1312 being provided with a communication port 13120 communicating with the exhaust duct 1301.

The big body 132 is assembled on the edge part 13101, and covers the outer side of the upper isolation part 1311, a gap is left between the big body 132 and the upper isolation part 1311, the gap forms an air inlet duct 1302 (refer to fig. 2), the air inlet 13101a is communicated with the air inlet duct 1302, and the air inlet duct 1302 is communicated with the air exhaust duct 1301 through the through hole 13100a and the communication port 13120.

The wind guard 133 is assembled to a lower side of the middle portion 13100, is engaged with the lower partition 1312 and the edge portion 13101, and blocks the through hole 13100a and the exhaust duct 1301, and the wind guard 133 includes an exhaust opening 1330 which communicates with the exhaust duct 1301 and is spaced apart from the communication opening 13120 in a circumferential direction of the through hole 13100 a.

The heat dissipation air duct 130 includes an air inlet duct 1302, a motor accommodating space 13110, a through hole 13100a, a communication port 13120, and an air outlet duct 1301 that are sequentially communicated, wherein the air inlet 13101a forms an inlet through which low-temperature air flows into the heat dissipation air duct 130, and the air outlet 1330 forms an outlet through which high-temperature air flows out of the heat dissipation air duct 130. When the heat dissipating fan 12 rotates, the external low-temperature air flow enters from the air inlet 13101a, flows through the heat dissipating air duct 130, and is discharged from the air outlet 1330, so that the circulating heat dissipation of the motor 11 is realized. Moreover, the communication port 13120 and the air outlet 1330 are circumferentially spaced, and when the airflow enters the air outlet passage 1301 from the communication port 13120, the airflow needs to change direction and flows to the air outlet 1330 along the air outlet passage 1301, the flowing speed of the airflow is reduced in the flowing process, kinetic energy is weakened, and noise is reduced. Wherein, the motor 11 is accommodated in the motor accommodating space 13110, when the airflow flows through the motor accommodating space 13110, the sufficient exchange between the motor 11 and the low-temperature airflow can be realized, so that the motor 11 is in a normal working state.

Referring to fig. 5, fig. 5 is an exploded view of the base 131 and the wind deflector 133.

In one embodiment, the wind deflector 133 includes a base plate 1331 and an extension plate 1332 extending upward from an edge of the base plate 1331, the edge portion 13101 is provided with a notch 13101b, the extension plate 1332 is disposed at the notch 13101b and blocks the notch 13101b, and the extension plate 1332 includes the air outlet 1330. In this embodiment, the wind shield 133 has a simple structure and is convenient to manufacture. In the embodiment shown in fig. 5, the substrate 1331 is a flat plate, the extension plate 1332 is a strip-shaped plate, and the exhaust opening 1330 includes a plurality of strip-shaped holes uniformly arranged.

The communication port 13120 is circumferentially spaced from the exhaust port 1330 by an angle that is not limited. In one embodiment, the air discharge opening 1330 is spaced 180 degrees from the communication opening 13120 in the circumferential direction of the through hole 13100 a. Thus, the communication port 13120 is spaced the farthest from the air outlet 1330, the airflow path is long, the kinetic energy of the airflow is further weakened, and the noise reduction effect is better.

Referring again to fig. 4, in one embodiment, a recessed portion 13101c is provided at a portion of the edge portion 13101 facing the communication port 13120, and the recessed portion is recessed from a surface of a side of the edge portion 13101 facing the communication port 13120 to a side away from the communication port 13120. When the airflow enters the exhaust duct 1301 from the communication port 13120, the airflow may first enter the recess 13101c, and the volume of the recess 13101c is large, so that the airflow may serve as a buffer structure to reduce the flow speed and pressure of the airflow, thereby reducing the kinetic energy.

In one embodiment, as shown in fig. 4, the edge portion 13101 further includes a protrusion 13101d disposed on at least one side of the recess 13101c, the protrusion 13101d protrudes from a surface of one side of the edge portion 13101 facing the lower partition 1312 into the exhaust duct 1301, and the protrusion 13101d is located between the communication port 13120 and the exhaust port 1330. In the process that the airflow flows from the communication port 13120 to the air outlet 1330, the airflow can collide with the protruding portion 13101d, the flowing direction of the airflow is changed, the kinetic energy of the airflow is weakened, and therefore the noise reduction effect is achieved. The outer surface of the protrusion 13101d may be provided as an arc surface or a plurality of planes that are sequentially connected, which is not limited in the present application. In the embodiment shown in fig. 4, both sides of the recess 13101c are provided with protrusions 13101d, respectively.

In one embodiment, as shown in fig. 4, a surface of the edge portion 13101 on a side facing the lower barrier 1312 is provided with a noise reduction rib 13101e, and the noise reduction rib 13101e protrudes toward a side close to the lower barrier 1312. The noise reduction ribs 13101e are used for reducing the flow velocity of the airflow, weakening the kinetic energy of the airflow and playing a role in noise reduction. The noise reduction ribs 13101e may be provided in a flat plate-like structure without limitation. On the other hand, the noise reducing ribs 13101e may connect the edge portions 13101 and the middle portions 13100, and further may function as reinforcing ribs to secure the connection strength of the edge portions 13101 and the middle portions 13100.

In one embodiment, as shown in fig. 5, the noise reduction duct structure 13 further includes a connecting structure 135 disposed in the exhaust duct 1301, and the wind shielding plate 133 is connected to the connecting structure 135. Specifically, the base plate 1331 of the wind deflector 133 is provided with a connecting hole 13310, and the connecting hole 13310 is used for a screw to pass through and be locked to the connecting structure 135. The connecting structure 135 serves to connect the base 1331 of the wind deflector 133 to the base 131 on the one hand and also serves as a noise reducing structure for attenuating the kinetic energy of the air flow on the other hand. The connection structure 135 may be provided in plurality, and the plurality of connection structures 135 surround the periphery provided at the lower isolation portion 1312.

Referring to fig. 6, fig. 6 is an enlarged view of a portion a shown in fig. 2.

As is known in the above, the heat dissipation fan blade 12 is assembled in the space surrounded by the lower isolation portion 1312, and the minimum distance a between the radial outermost end of the heat dissipation fan blade 12 and the inner wall of the lower isolation portion 1312 is in a range of 3-10 mm. The range value of the minimum distance B between the bottommost end of the heat dissipation fan blade 12 and the inner side bottom surface of the wind shield 133 is 3-10 mm. In this size range, too small gap between the heat dissipation fan blade 12 and the lower isolation portion 1312 is not caused, and when the heat dissipation fan blade 12 rotates, it is ensured that the airflow does not generate vortex at this position, thereby reducing noise.

Referring to fig. 2 and 7, fig. 7 is a further sectional view of the food processor 100 shown in fig. 1.

When the food processor 100 works, the motor 11 is started, the heat dissipation fan blade 12 rotates under the driving force of the motor 11, low-temperature gas enters the air inlet duct 1302 from the air inlet 13101a, enters the space where the motor 11 is located from the upper end of the upper isolation portion 1311, and exchanges heat with the motor 11, at this time, the low-temperature gas absorbs heat to form high-temperature gas, and the high-temperature gas enters the air outlet duct 1301 through the communication port 13120 and is then discharged through the air outlet 1330. The arrows in the drawing indicate the flow direction of the air flow.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. The utility model provides a wind channel structure of making an uproar falls of cooking machine which characterized in that includes:

the base (131) comprises a base body (1310) and a lower isolation part (1312) connected to the base body (1310), the base body (1310) comprises a middle part (13100) and an edge part (13101) which are connected, the edge part (13101) is provided with an air inlet (13101a), the middle part (13100) is provided with a through hole (13100a) which penetrates up and down, the lower isolation part (1312) protrudes downwards from the middle part (13100) and surrounds the through hole (13100a), an air exhaust duct (1301) is arranged between the lower isolation part (1312) and the edge part (13101), and the lower isolation part (1312) is provided with a communication port (13120) communicated with the air exhaust duct (1301); and

the wind shield (133) is assembled on the lower side of the middle portion (13100) and encloses the air exhaust duct (1301) together with the lower isolation portion (1312), the wind shield (133) comprises an air exhaust opening (1330), the air exhaust opening (1330) is communicated with the air exhaust duct (1301), the air exhaust opening (1330) and the communication opening (13120) are separated along the circumferential direction of the through hole (13100a), and the air exhaust duct (1301) is communicated with the air inlet (13101a) and the air exhaust opening (1330).

2. The noise reduction duct structure according to claim 1, wherein the air discharge opening (1330) is spaced 180 degrees from the communication opening (13120) in a circumferential direction of the through hole (13100 a).

3. A noise-reducing wind tunnel structure according to claim 1, characterized in that a recess (13101c) is provided at a portion of the edge portion (13101) facing the communication port (13120), the recess (13101c) being recessed from a side surface of the edge portion (13101) facing the communication port (13120) to a side away from the communication port (13120).

4. A noise-reducing wind tunnel structure according to claim 3, characterized in that the edge portion (13101) further comprises a protruding portion (13101d) provided at least one side of the recess (13101c), the protruding portion (13101d) protruding into the wind exhaust duct (1301) between the communication port (13120) and the wind exhaust port (1330).

5. A noise reduction duct structure according to claim 1, wherein a surface of a side of the edge portion (13101) facing the lower partition (1312) is provided with a noise reduction rib (13101e), and the noise reduction rib (13101e) protrudes to a side close to the lower partition (1312).

6. The noise reducing air duct structure according to claim 1, wherein the noise reducing air duct structure (13) further comprises a connection structure (135) disposed in the exhaust air duct (1301), and the air deflector (133) is connected to the connection structure (135).

7. The noise reduction duct structure according to claim 1, wherein the wind guard plate (133) includes a base plate (1331) and an extension plate (1332) extending upward from an edge of the base plate (1331), the edge portion (13101) is provided with a notch (13101b), the extension plate (1332) is provided at the notch (13101b), and the extension plate (1332) includes the air outlet (1330).

8. The noise reduction duct structure according to claim 1, wherein the base (131) further comprises an upper partition (1311), the upper partition (1311) protrudes upward from the middle portion (13100) and surrounds the through hole (13100a), a space surrounded by the upper partition (1311) is a motor accommodating space (13110), and the motor accommodating space (13110) is communicated with the air inlet (13101 a).

9. A food processor, comprising a main machine (10), wherein the main machine (10) comprises a motor (11), a heat dissipation fan blade (12) connected to a rotating shaft (110) of the motor (11), and a noise reduction air duct structure (13) according to any one of claims 1 to 8, wherein the heat dissipation fan blade (12) is disposed in a space surrounded by the lower isolation portion (1312).

10. The food processor of claim 9, wherein the minimum distance between the radial outermost end of the heat-dissipating fan blade (12) and the inner wall of the lower partition (1312) is 3-10 mm; and/or the range value of the minimum distance between the bottommost end of the heat dissipation fan blade (12) and the inner side bottom surface of the wind shield (133) is 3-10 mm.