CN219270735U

CN219270735U - Noise reduction base and food processor comprising same

Info

Publication number: CN219270735U
Application number: CN202320177074.7U
Authority: CN
Inventors: 李一峰; 朱作华
Original assignee: Foshan Bear Kitchen Electric Appliance Co Ltd
Current assignee: Bear Electrical Appliance Co Ltd; Foshan Bear Kitchen Electric Appliance Co Ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-06-30
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a noise reduction base and a food processor comprising the noise reduction base. The noise reduction base includes: a housing provided with a mounting cavity for accommodating a motor assembly of the food processor; the first fan housing is arranged in the shell to divide the shell into a sound insulation cavity and a first fan cavity from top to bottom; the sound insulation cavity is surrounded by the mounting cavity; the first air cavity is provided with a first air inlet and a first air outlet which are communicated with the outside; the mounting cavity is provided with a second air inlet and a second air outlet; the second air inlet is communicated with the sound insulation cavity, and the second air outlet is communicated with the first air outlet; the first fan housing is equipped with the ventilation hole, and ventilation hole intercommunication first air intake and sound insulation chamber to make first air intake, ventilation hole, sound insulation chamber, installation cavity and first air outlet communicate into the snakelike wind channel in proper order. Therefore, the noise transmitted to the sound insulation cavity can be blocked by the first fan cover and cannot be directly discharged from the first air inlet, and the noise needs to be reflected for multiple times in the snake-shaped air duct and is attenuated gradually so as to be discharged from the first air outlet.

Description

Noise reduction base and food processor comprising same

Technical Field

The utility model relates to the technical field of household appliances, in particular to a noise reduction base and a food processor comprising the noise reduction base.

Background

In the using process of the food processors such as the wall breaking machine, the soybean milk machine, the food processor and the pulverizer, the motor of the motor assembly rotates at high speed, the load is large, the vibration is large, the noise is high, and the using experience of a user is directly affected; on the other hand, along with the growth of food processor live time, motor element is in the high load course of working, and calorific capacity is big, and electronic components produces the trouble easily to lead to product performance unstable, and lead to product life not long, consequently, need dispel the heat to motor element, current most food processor utilizes the air current to take away motor element's heat, and in this in-process, the noise can be directly from air intake and air outlet discharge external world, makes user's use experience not good.

Disclosure of Invention

In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present utility model provides a noise reduction base and a food processor including the noise reduction base, which aims to solve the problem that the noise of the food processor dissipating heat by airflow in the prior art is directly exhausted from an air inlet and an air outlet.

The utility model adopts the technical proposal for solving the problems that:

a noise reduction mount, comprising: a housing provided with a mounting cavity for accommodating a motor assembly of a food processor; the first fan cover is arranged in the shell to divide the interior of the shell into a sound insulation cavity and a first fan cavity from top to bottom; the sound insulation cavity is surrounded by the installation cavity; the first air cavity is provided with a first air inlet and a first air outlet which are communicated with the outside; the mounting cavity is provided with a second air inlet and a second air outlet; the second air inlet is communicated with the sound insulation cavity, and the second air outlet is communicated with the first air outlet; the first fan cover is provided with a ventilation hole, and the ventilation hole is communicated with the first air inlet and the sound insulation cavity; the first air inlet, the vent hole, the sound insulation cavity, the installation cavity and the first air outlet are sequentially communicated to form a snake-shaped air channel.

According to the noise reduction base provided by the utility model, on one hand, the installation cavity, the sound insulation cavity and the first wind cavity can realize multiple barriers to noise, wherein the noise transmitted to the sound insulation cavity can be blocked by the first wind cover and can not be directly discharged from the first air inlet of the first wind cavity, so that the noise reduction effect is greatly improved; on the other hand, the air current is through the snakelike wind channel in order to take away the heat that motor element produced, and the snakelike wind channel is because of being the bending arrangement for the air current flow path extension can fully take away the heat that motor element moved and produce, and the noise that motor element produced and the noise that the air current flowed and produced reflect in the snakelike wind channel many times and attenuate gradually, just can follow the first air outlet of first wind chamber and discharge after the noise attenuation gradually promptly, so, avoid the noise not to cut down and directly follow first air intake and first air outlet and discharge, and improved radiating effect and noise reduction simultaneously.

According to some embodiments of the utility model, a first sound deadening member is provided in the sound deadening chamber.

According to some embodiments of the utility model, the silencer is disposed around an outer peripheral wall of the mounting cavity.

According to some embodiments of the utility model, the mounting cavity and the first fan housing are arranged at an upper-lower interval such that the first fan cavity is located below the mounting cavity.

According to some embodiments of the utility model, the serpentine air duct comprises a first serpentine segment, the installation cavity comprises a bottom wall, the bottom wall and the vent holes are arranged at intervals up and down, the second air inlet is arranged on the bottom wall, the vent holes and the second air inlet are staggered, and the bottom wall is used for changing the flow direction of air flow so that the first air inlet, the vent holes, the sound insulation cavity and the second air inlet are sequentially communicated to form the first serpentine segment.

According to some embodiments of the utility model, the second air inlet and the plurality of air holes are arranged at intervals up and down, and the plurality of air holes are arranged around the second air inlet.

According to some embodiments of the utility model, the air conditioner further comprises an air outlet channel, wherein the air outlet channel is arranged between the second air outlet and the first air outlet so as to be communicated with the second air outlet and the first air outlet, and the air outlet channel is in a volute shape.

According to some embodiments of the utility model, wind power cutting ribs are arranged in the air outlet duct.

According to some embodiments of the utility model, the fan is arranged in the air outlet duct to send the air flow to the first air outlet, and a second silencing piece is arranged between the air outlet duct and the fan.

In addition, the utility model also provides a food processor, which comprises the noise reduction base and a motor assembly, wherein the motor assembly is accommodated in the mounting cavity; the motor assembly comprises a second fan housing and a motor, wherein the second fan housing is arranged in the installation cavity, the second fan housing is provided with a rotation cavity, and the motor is arranged in the rotation cavity.

According to some embodiments of the utility model, the serpentine channel comprises a second serpentine segment; a first air duct is formed between the second fan cover and the mounting cavity; the second fan cover is provided with a second air channel, an air inlet of the second air channel is communicated with the first air channel, and an air outlet of the second air channel is communicated with the rotating cavity; the first air channel is communicated with the second air inlet, and the rotating cavity is communicated with the second air outlet; the second air inlet, the first air duct, the second air duct, the rotating cavity and the second air outlet are sequentially communicated to form the second snake-shaped section.

According to some embodiments of the utility model, a spoiler is disposed between the first air duct and the rotating chamber for changing the direction of the air flow.

According to some embodiments of the utility model, the sound insulation housing is arranged between the mounting cavity and the second fan housing, the sound insulation housing is provided with a third air inlet and a third air outlet, the third air inlet is opposite to the second air inlet, and the third air outlet is opposite to the second air outlet.

According to some embodiments of the utility model, the cup further comprises a cup seat, a first connecting hole is formed in the outer periphery of the second fan cover in a concave mode, the cup seat is provided with a connecting column, and the connecting column is inserted into the first connecting hole to fix the cup seat and the second fan cover.

Drawings

Fig. 1 is a schematic perspective view of a noise reduction base according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of a noise reduction base according to an embodiment of the present utility model;

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

FIG. 4 is a schematic view of a noise reduction base (first air chamber and first air cover are not shown) according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a noise reduction base (first air chamber is not shown) according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of a noise reduction base (not shown in the installation cavity and the soundproof cavity) according to an embodiment of the present utility model;

FIG. 7 is a schematic view of an exploded view of a stirring cup according to an embodiment of the present utility model;

fig. 8 is a schematic cross-sectional view of a food processor according to an embodiment of the utility model.

Wherein the reference numerals have the following meanings:

10-shell, 101-installation cavity, 1011-bottom wall, 1012-second air inlet, 1013-second air outlet, 102-sound insulation cavity, 103-first air cavity, 1031-first air inlet, 1032-first air outlet, 11-first fan housing, 111-vent, 12-first silencing piece, 13-air outlet air duct, 131-wind power cutting rib, 132-second silencing piece, 14-motor component, 141-motor, 142-second fan housing, 1421-rotation cavity, 1422-second air duct, 1423-first connecting hole, 1424-upper fan housing, 1425-lower fan housing, 1426-first turbulence structure, 15-first air duct, 16-air inlet gap, 17-sound insulation housing, 171-third air inlet, 172-third air outlet, 173-second connecting hole, 18-cup holder, 181-connecting post, 182-second structure, 19-cup, 20-knife component, 201-knife blade, 202-blade, 21-sealing ring, 22-fan housing.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

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

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 3, the present utility model discloses a noise reduction base, which includes: a housing 10 provided with a mounting cavity 101, the mounting cavity 101 being adapted to receive a motor assembly 14 of a food processor; a first fan housing 11 provided in the housing 10 to divide the interior of the housing 10 into a sound insulation chamber 102 and a first fan chamber 103 from top to bottom; the sound insulation cavity 102 is surrounded by the mounting cavity 101; the first air cavity 103 is provided with a first air inlet 1031 and a first air outlet 1032 which are communicated with the outside; the mounting cavity 101 is provided with a second air inlet 1012 and a second air outlet 1013; the second air inlet 1012 is communicated with the sound insulation cavity 102, and the second air outlet 1013 is communicated with the first air outlet 1032; the first fan housing 11 is provided with a ventilation hole 111, and the ventilation hole 111 is communicated with the first air inlet 1031 and the sound insulation cavity 102; the first air inlet 1031, the air vent 111, the sound insulation chamber 102, the installation chamber 101 and the first air outlet 1032 are sequentially communicated into a serpentine air channel.

In particular, the food processor may be, but is not limited to, a wall breaking machine or a soymilk machine or a cooking machine or a pulverizer, etc.; the first air inlet 1031 is used for absorbing air of the external environment, and the first air outlet 1032 is used for exhausting the internal air flow to the external environment.

By adopting the above scheme, on one hand, the installation cavity 101, the sound insulation cavity 102 and the first air cavity 103 can realize multiple barriers to noise, wherein the noise transmitted to the sound insulation cavity 102 can be blocked by the first air cover 11 and can not be directly discharged from the first air inlet 1031 of the first air cavity 103, so that the noise reduction effect is greatly improved; on the other hand, the air current is through the snakelike wind channel in order to take away the heat that motor element 14 produced, and the snakelike wind channel is because of being the bending arrangement for the air current flow path extension can fully take away the heat that motor element 14 moved and produce, and the noise that motor element 14 produced and the air current flow produce is at snakelike wind channel internal reflection many times and attenuate gradually, just can follow the first air outlet 1032 of first wind chamber 103 and discharge after the noise attenuates gradually promptly, so, avoid the noise not cut down and directly follow first air inlet 1031 and first air outlet 1032 discharge, and improve radiating effect and noise reduction effect simultaneously.

Further, in the present embodiment, as shown in fig. 3 and 4, a first muffler 12 is provided in the sound deadening chamber 102 to block and absorb the medium-high frequency noise penetrating from the motor assembly 14.

Preferably, the first silencing members 12 are disposed around the outer peripheral wall of the mounting cavity 101, and the first silencing members 12 may be annular, or may be long and coiled into an annular shape, or may be a plurality of first silencing members 12 distributed annularly. Preferably, in the present embodiment, the first silencing member 12 is entirely wrapped around the outer peripheral wall of the installation cavity 101 to reduce noise transmission. Indeed, in some other embodiments, the first silencing member 12 may also be partially wrapped around the outer peripheral wall of the installation cavity 101, which is selected according to the actual production requirement and the actual use requirement, and is not limited herein.

Further, in this embodiment, as shown in fig. 3, the installation cavity 101 and the first fan housing 11 are disposed at an upper-lower interval, so that the first fan cavity 103 is located below the installation cavity 101, and thus, a space is formed between the installation cavity 101 and the first fan cavity 103, and noise in the installation cavity 101 is blocked and absorbed by the sound insulation cavity 102 and the first fan housing 11, and cannot be directly transmitted to the first fan cavity 103, and cannot be directly discharged from the first air inlet 1031 and the first air outlet 1032.

As shown in fig. 3, 5 and 6, further, in this embodiment, the serpentine air duct includes a first serpentine segment, the installation cavity 101 has a bottom wall 1011, the bottom wall 1011 and the ventilation hole 111 are disposed at an upper-lower interval, the second air inlet 1012 is disposed at the bottom wall 1011, and the ventilation hole 111 and the second air inlet 1012 are dislocated, the bottom wall 1011 is used for changing the flow direction of the air flow, so that the first serpentine segment is formed by sequentially communicating the first air inlet 1031, the ventilation hole 111, the sound insulation cavity 102 and the second air inlet 1012. So, get into the air current of sound insulation chamber 102 from ventilation hole 111, change the flow direction after being disturbed by diapire 1011, just can flow into second air intake 1012, prolonged the air current runner route, the noise can take place multiple reflection and decay gradually at this first snakelike section, the performance of making an uproar has been improved, and, utilize the diapire 1011 disturbance air current of installation chamber 101 to change the air current flow direction, need not to set up other spoilers at diapire 1011, spare part quantity has been reduced, moreover, the steam generator is simple in structure, manufacturing cost has been reduced, also can avoid long-time use after, the spoilers ageing and drop and the potential safety hazard that arouses.

Specifically, the second air outlet 1013 is also disposed on the bottom wall 1011, and the second air inlet 1012 surrounds the second air outlet 1013.

Preferably, the plurality of ventilation holes 111 are arranged, the second air inlet 1012 and the plurality of ventilation holes 111 are arranged at intervals up and down, and the plurality of ventilation holes 111 are arranged around the second air inlet 1012. The air flow can flow into the second air inlet 1012 of the installation cavity 101 after being disturbed by the bottom wall 1011 of the installation cavity 101, thus, the air flow path between the vent hole 111 and the second air inlet 1012 is prolonged, the noise reduction effect is improved, and the plurality of vent holes 111 may have micro-perforation noise reduction effect to further reduce noise, specifically, the vent holes 111 may be, but not limited to, small round holes or small waist holes or small elliptical holes, etc.

Referring to fig. 3, 5 and 6, in this embodiment, the air conditioner further includes an air outlet duct 13 and a fan 22, wherein the air outlet duct 13 is disposed between the second air outlet 1013 and the first air outlet 1032 to communicate the second air outlet 1013 and the first air outlet 1032, the fan 22 is disposed in the air outlet duct 13 to send air to the first air outlet 1032, a second silencing member 132 is disposed between the air outlet duct 13 and the fan 22, and the second silencing member 132 can effectively absorb noise transmitted to the air outlet duct 13 and noise generated by the fan 22, thereby reducing noise exhausted to the outside through the second air outlet 1013.

Preferably, in the present embodiment, the air outlet duct 13 is in a volute shape, and the volute-shaped air outlet duct 13 can ensure the air outlet amount of the noise reduction base, and can also meet the requirement of downsizing, and importantly, can also reduce noise generated by rotation of the fan 22, noise of airflow flowing and noise transmitted to the air outlet duct 13; in addition, the volute-shaped air outlet duct 13 effectively prolongs the contact length with the second silencing piece 132, namely the second silencing piece 132 with longer length can be used, so that the silencing and noise reducing effects are improved.

Preferably, wind power cutting ribs 131 are arranged in the air outlet duct 13. The wind power cutting ribs 131 can cut off the air flow in the air outlet duct 13 so as to reduce the whistle sound generated by air flow friction, and further improve the noise reduction effect when the air flow is discharged

Specifically, the air outlet duct 13 is connected to the first hood 11.

Specifically, the first and second

sound attenuating members

12 and 132 may be, but are not limited to, sound insulating films or cottons or panels, or felt, etc.

It should be noted that, in some other embodiments, a silencer or a spoiler may be disposed in the serpentine air channel.

As shown in fig. 3, 7 and 8, the present utility model further provides a food processor, which includes the noise reduction base as described above, and further includes a motor assembly 14, a knife assembly 20, a cup stand 18 and a cup 19, wherein the motor assembly 14 is accommodated in the installation cavity 101, the cup stand 18 is embedded in the installation cavity 101 and is used for connecting the cup 19, and the cup 19 and the cup stand 18 are in threaded connection. One end of the knife assembly 20 is positioned in the cup 19, and the knife assembly 20 cuts and stirs food materials placed in the cup 19 under the drive of the motor assembly 14; the food processor has excellent noise reduction performance and heat dissipation performance, and improves the use experience of users. Specifically, the motor assembly 14 includes a second fan housing 142 and a motor 141, the second fan housing 142 is disposed in the installation cavity 101, the second fan housing 142 is provided with a rotation cavity 1421, the motor 141 is disposed in the rotation cavity 1421, and the second fan housing 142 and the rotation cavity 1421 are disposed so as to form a serpentine air channel.

Further, in this embodiment, the serpentine channel comprises a second serpentine segment; a first air duct 15 is formed between the second air cover 142 and the installation cavity 101; the second air cover 142 is provided with a second air duct 1422, an air inlet of the second air duct 1422 is communicated with the first air duct 15, and an air outlet of the second air duct 1422 is communicated with the rotating cavity 1421; the first air duct 15 is communicated with the second air inlet 1012, and the rotating cavity 1421 is communicated with the second air outlet 1013; the second air inlet 1012, the first air duct 15, the second air duct 1422, the rotating chamber 1421, and the second air outlet 1013 are sequentially connected to form a second serpentine segment. Similarly, the noise generated by the motor 141 and the noise generated by the airflow flow can be reflected for multiple times and gradually attenuated in the second serpentine section, so that the noise reduction performance is improved, and the second serpentine section is bent and arranged, so that a streamline airflow form can appear in the second serpentine section, the flow is smoother, the occurrence of the condition of loud noise caused by wind whistle generated by the airflow directly blowing motor 141 is avoided, and the noise reduction is realized.

Referring to fig. 7 and 8, further, in this embodiment, the sound insulation housing 17 is further included, the sound insulation housing 17 is disposed between the installation cavity 101 and the second fan housing 142, specifically, the sound insulation housing 17 is embedded in the installation cavity 101, the second fan housing 142 is disposed in the sound insulation housing 17, the sound insulation housing 17 is provided with a third air inlet 171 and a third air outlet 172, the third air inlet 171 is opposite to and communicated with the second air inlet 1012, and the third air outlet 172 is opposite to and communicated with the second air outlet 1013, so that the sound insulation housing 17 forms a surrounding connection with the installation cavity 101, and the sound insulation housing 17 is utilized to strengthen the blocking of the noise transmitted by the installation cavity 101.

Further, in the present embodiment, a spoiler for changing the airflow direction is provided between the first air duct 15 and the rotating chamber 1421, so that the airflow path is more tortuous, the length of the airflow path is increased, and a higher noise reduction effect is achieved.

As shown in fig. 8, the spoiler preferably includes a first spoiler structure 1426 and a second spoiler structure 182; the first turbulence structure 1426 is disposed on one side of the air inlet of the second air duct 1422 and opposite to the third air inlet 171, an air inlet gap 16 is formed between the second turbulence structure 182 and the air inlet of the second air duct 1422, and the first turbulence structure 1426 turbulence the air flow flowing out of the third air inlet 171, so that the air flow flows into the air inlet gap 16 and the air inlet of the second air duct 1422 in turn; the second turbulence structure 182 is disposed between the air outlet of the second air duct 1422 and the rotating cavity 1421, so that an air flow path between the air outlet of the second air duct 1422 and the rotating cavity 1421 is more tortuous.

As shown in fig. 7, in particular, the second housing 142 includes an upper housing 1424 and a lower housing 1425 connected to the upper housing 1424, and the upper housing 1424 and the lower housing 1425 may be, but not limited to, a snap-fit connection, a threaded connection, an integral molding, or the like, without limitation.

Referring to fig. 7 and 8, specifically, the first turbulence structure 1426 is a conical surface structure disposed on the lower fan housing 1425, and the cross-sectional area of the conical surface structure gradually decreases along the direction close to the third air inlet 171, so that the airflow flows along the conical surface structure disposed along the direction, and the airflow is turned gently and not jerkily, and the flow direction is more streamline, so that the wind noise is reduced.

Referring to fig. 7 and 8, specifically, the second turbulence structure 182 is an annular protrusion disposed on the upper air casing 1424, when the air flow passes through the air outlet of the second air duct 1422, the air flow encounters turbulence of the annular protrusion to change the direction of the air flow, and the air flow is reflected to attenuate noise and then enters the rotating cavity 1421 to take away the heat generated by the motor 141.

Specifically, the annular protrusion is integrally formed with the cup holder 18, and the cup holder 18 is embedded in the second fan housing 142 through the annular protrusion, so that a gap between the second fan housing 142 and the cup holder 18 is reduced, and noise leaking from the gap to the external environment can be reduced.

It should be noted that, the first spoiler structure 1426 and the second spoiler structure 182 may be, but not limited to, fin structures, inclined structures, spoiler structures, and the like, and the flow direction of the air flow may be changed, which is not limited herein.

It should be noted that, in some other embodiments, the sound insulation shell 17 may not be provided, and the first spoiler 1426 is opposite to the second air inlet 1012.

Further, in the present embodiment, as shown in fig. 7, the cup stand 18 is provided with the connecting post 181, the outer periphery of the second fan housing 142 is concavely formed with the first connecting hole 1423, and the connecting post 181 is inserted into the first connecting hole 1423 to fix the cup stand 18 and the second fan housing 142, so that compared with the first connecting hole 1423 arranged in the middle of the second fan housing 142, the internal gap of the second fan housing 142 is reduced, and as such, noise leaking from the gap to the external environment can be reduced.

More specifically, the soundproof case 17 is provided with a second connection hole 173, and the connection post 181 is inserted in the first connection hole 1423 and the second connection hole 173 in order to fix the cup 18, the second air cover 142, and the soundproof case 17.

Specifically, in the present embodiment, the cutter assembly 20 includes a cutter 201 and a blade 202, the cutter 201 is covered at the opening of the installation cavity 101 to prevent noise from leaking from the opening of the installation cavity 101, the cutter 201 is in transmission connection with the motor 141, the cutter 201 rotates under the drive of the motor 141, and the blade 202 is connected to the cutter 201 and rotates synchronously with the cutter 201 to cut and stir the food material in the cup 19.

Preferably, a sealing ring 21 is provided at the connection between the cutter 201 and the motor 141, and as such, the sealing ring 21 prevents noise from leaking from the connection gap between the cutter 201 and the motor 141.

In this way, the sound insulation shell 17, the motor assembly 14, the cup holder 18, the cup 19 and the knife assembly 20 are integrated into a stirring cup, and the motor 141 is surrounded by the sound insulation shell, so that gaps capable of directly discharging noise are reduced, and the noise generated by the motor 141 is difficult to propagate.

In summary, the noise reduction base and the food processor comprising the noise reduction base disclosed by the utility model have the following beneficial technical effects:

1) The installation cavity 101, the sound insulation cavity 102 and the first air cavity 103 can realize multiple barriers to noise, wherein the noise transmitted to the sound insulation cavity 102 can be blocked by the first air cover 11 and can not be directly discharged from the first air inlet 1031, so that the noise reduction effect is greatly improved;

2) Noise generated by the motor assembly 14 and noise generated by airflow flow are reflected in the serpentine air channel for multiple times and gradually attenuated, i.e. the noise can be discharged from the first air outlet 1032 after being gradually attenuated;

3) The first muffler 12 may block and absorb medium and high frequency noise penetrating from the motor assembly 14;

4) The bottom wall 1011 of the installation cavity 101 is utilized to disturb the air flow so as to change the air flow direction, other turbulence pieces are not required to be arranged on the bottom wall 1011, the number of parts is reduced, the structure is simple, the production cost is reduced, and potential safety hazards caused by aging and falling of the turbulence pieces after long-time use can be avoided;

5) The plurality of ventilation holes 111 may have a microperforation silencing effect to further reduce noise;

6) The motor 141 is surrounded, and a gap capable of directly discharging noise is reduced, so that noise generated by the motor 141 is difficult to propagate.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. Noise reduction base, its characterized in that includes:

a housing (10) provided with a mounting cavity (101), the mounting cavity (101) being for accommodating a motor assembly (14) of a food processor;

a first fan housing (11) arranged in the shell (10) to divide the interior of the shell (10) into a sound insulation cavity (102) and a first fan cavity (103) from top to bottom; the sound insulation cavity (102) is surrounded by the mounting cavity (101); the first air cavity (103) is provided with a first air inlet (1031) and a first air outlet (1032) which are communicated with the outside;

the mounting cavity (101) is provided with a second air inlet (1012) and a second air outlet (1013); the second air inlet (1012) is communicated with the sound insulation cavity (102), and the second air outlet (1013) is communicated with the first air outlet (1032);

the first fan cover (11) is provided with a ventilation hole (111), and the ventilation hole (111) is communicated with the first air inlet (1031) and the sound insulation cavity (102); the first air inlet (1031), the ventilation hole (111), the sound insulation cavity (102), the mounting cavity (101) and the first air outlet (1032) are sequentially communicated to form a snake-shaped air channel.

2. The noise reduction mount according to claim 1, wherein the sound isolation chamber (102) is provided with a first sound attenuating element (12).

3. The noise reducing mount according to claim 2, wherein the first sound attenuating member (12) is provided around an outer peripheral wall of the mounting chamber (101).

4. The noise reduction base according to claim 1, characterized in that the installation cavity (101) and the first fan housing (11) are arranged at an up-down interval so that the first fan cavity (103) is located below the installation cavity (101).

5. The noise reduction base according to claim 4, wherein the serpentine air duct comprises a first serpentine section, the mounting cavity (101) comprises a bottom wall (1011), the bottom wall (1011) and the ventilation hole (111) are arranged at an upper-lower interval, and the second air inlet (1012) is arranged at the bottom wall (1011); the ventilation hole (111) and the second air inlet (1012) are staggered, and the bottom wall (1011) is used for changing the flow direction of air flow, so that the first air inlet (1031), the ventilation hole (111), the sound insulation cavity (102) and the second air inlet (1012) are sequentially communicated to form the first snake-shaped section.

6. The noise reduction base according to claim 5, wherein a plurality of ventilation holes (111) are provided, the second air inlet (1012) and a plurality of ventilation holes (111) are arranged at intervals up and down, and a plurality of ventilation holes (111) are surrounded on the second air inlet (1012).

7. The noise reduction base according to any one of claims 1-6, further comprising an air outlet duct (13), the air outlet duct (13) communicating the second air outlet (1013) and the first air outlet (1032), and the air outlet duct (13) being volute-shaped.

8. The noise reduction base according to claim 7, characterized in that a wind power cutting rib (131) is arranged in the air outlet duct (13).

9. The noise reduction base according to claim 7, further comprising a fan (22), wherein the fan (22) is disposed in the air outlet duct (13) to send an air flow to the first air outlet (1032), and a second silencing member (132) is disposed between the air outlet duct (13) and the fan (22).

10. Food processor, comprising a noise reducing base according to claims 1-9, further comprising a motor assembly (14), said motor assembly (14) being housed in said mounting cavity (101); the motor assembly (14) comprises a second fan housing (142) and a motor (141), the second fan housing (142) is arranged in the installation cavity (101), the second fan housing (142) is provided with a rotation cavity (1421), and the motor (141) is arranged in the rotation cavity (1421).

11. The food processor of claim 10, wherein the serpentine channel comprises a second serpentine segment;

a first air duct (15) is formed between the second air cover (142) and the mounting cavity (101);

the second fan cover (142) is provided with a second air duct (1422), an air inlet of the second air duct (1422) is communicated with the first air duct (15), and an air outlet of the second air duct (1422) is communicated with the rotating cavity (1421);

the first air duct (15) is communicated with the second air inlet (1012), and the rotating cavity (1421) is communicated with the second air outlet (1013);

the second air inlet (1012), the first air duct (15), the second air duct (1422), the rotating cavity (1421) and the second air outlet (1013) are sequentially communicated to form the second serpentine section.

12. The food processor of claim 11, wherein a spoiler (16) for changing the direction of the air flow is provided between the first air duct (15) and the rotating chamber (1421).

13. The food processor of any one of claims 10-12, further comprising an acoustic enclosure (17), the acoustic enclosure (17) being disposed between the mounting cavity (101) and the second enclosure (142), the acoustic enclosure (17) being provided with a third air inlet (171) and a third air outlet (172), the third air inlet (171) being opposite the second air inlet (1012), the third air outlet (172) being opposite the second air outlet (1013).

14. The food processor of any one of claims 10-12, further comprising a cup (18), wherein a first connecting hole (1423) is concavely formed in an outer periphery of the second fan housing (142), the cup (18) is provided with a connecting post (181), and the connecting post (181) is inserted into the first connecting hole (1423) to fix the cup (18) and the second fan housing (142).