CN115956819A

CN115956819A - Noise reduction device, base and food processor

Info

Publication number: CN115956819A
Application number: CN202111193682.9A
Authority: CN
Inventors: 刘华; 刘苗; 梅长云; 梁建辉; 邱锐杰
Original assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2023-04-14

Abstract

The invention provides a noise reduction device, a base and a food processor. Wherein, the device of making an uproar falls for cooking machine includes: the casing sets up a plurality of chambeies of making an uproar of falling in the casing, and the casing still is provided with first wind channel, sets up a plurality ofly on the lateral wall in first wind channel and has the intercommunication, and every falls the chamber of making an uproar and at least one intercommunication. According to the invention, through reasonably setting the structure of the noise reduction device, the noise reduction device comprises a plurality of noise reduction cavities, and sound waves in the noise reduction cavities rub against the inner walls of the noise reduction cavities to convert mechanical energy into heat energy, so that sound energy is consumed, the effects of sound absorption and noise reduction can be effectively achieved, and the purpose of eliminating specific target noise reduction frequency can be achieved. The running noise of the food processor can be reduced in a targeted manner, and the noise reduction effect is good.

Description

Noise reduction device, base and food processor

Technical Field

The invention relates to the technical field of food processors, in particular to a noise reduction device, a base and a food processor.

Background

Among the correlation technique, the cooking machine includes cup body assembly, and cooking machine during operation, cup body assembly's crushing sword rotates to eat the material with stirring garrulous, and the internal face of eating material striking cup body assembly can produce the noise. And cup body assembly's motor and cup body assembly's flabellum are connected, and motor work also can produce great noise, and user experience is poor.

Disclosure of Invention

The present invention has been made to solve at least one of the problems occurring in the prior art or the related art.

To this end, a first aspect of the invention proposes a noise reducing device.

A second aspect of the invention proposes a base.

A third aspect of the present invention provides a food processor.

In view of the above, one aspect of the present invention provides a noise reduction device for a food processor, including: the casing sets up a plurality of chambeies of making an uproar of falling in the casing, and the casing still is provided with first wind channel, sets up a plurality ofly on the lateral wall in first wind channel and has the intercommunication, and every falls the chamber of making an uproar and at least one intercommunication.

The invention provides a noise reduction device which comprises a shell, wherein a plurality of noise reduction cavities are arranged in the shell, the shell is also provided with a first air channel, a plurality of communicating parts are arranged on the side wall of the first air channel, and each noise reduction cavity is communicated with at least one communicating part. Produced sound wave of cooking machine during operation propagates to a plurality of intercommunication portions through first wind channel, gets into a plurality of chambeies of making an uproar of falling, and then spreads the device of making an uproar of falling by a plurality of chambeies of making an uproar of falling again. That is, for the noise reduction chamber, the inlet and the outlet of the noise reduction chamber are the same structure (i.e., the communicating portion), and the sound wave is transmitted into the noise reduction chamber from the communicating portion and then transmitted out from the communicating portion.

Through the structure of the reasonable noise reduction device that sets up for noise reduction device is including a plurality of chambeies of making an uproar, and the sound wave of making an uproar intracavity and the inner wall friction of making an uproar chamber of making an uproar fall turn into heat energy with mechanical energy, thereby consume the acoustic energy, can effectively reach the effect of making an uproar of absorbing sound and falling.

It can be understood that, when the food processor works, the characteristic of the target noise reduction frequency is kept unchanged, and the noise reduction device has relevance with the target noise reduction frequency of the food processor, so that the purpose of eliminating the specific target noise reduction frequency can be achieved. The running noise of the food processer can be reduced in a targeted manner, and the noise reduction effect is good.

Furthermore, the number of the noise reduction cavities is multiple, so that a plurality of noise reduction cavities can be set in a targeted manner according to the target noise reduction frequency, for example, noise reduction cavities of multiple specifications are set for multiple different frequencies, and for example, noise reduction cavities of the same specification are set for the same frequency, so that broadband sound absorption and noise reduction are facilitated, diversified use requirements of users can be met, and use performance and market competitiveness of products are facilitated to be improved.

According to the noise reduction device of the present invention, the following additional features may be provided:

in the above technical solution, further, the plurality of noise reduction cavities are located on the peripheral side of the first air duct.

In this technical scheme, through the cooperation structure that rationally sets up a plurality of chambeies of making an uproar and first wind channel of making an uproar for a plurality of chambeies of making an uproar lie in first wind channel week side, like this, can the structure in the first wind channel of rational utilization, guarantee that a plurality of intercommunication portions and a plurality of cooperation size of making an uproar chambeies provide effective and reliable structural support.

In any of the above technical solutions, further, the plurality of noise reduction cavities include a first noise reduction cavity, the first noise reduction cavity includes a resonance pipe and a resonance chamber, and the resonance pipe communicates the resonance chamber and the communicating portion; the flow cross-sectional area of the resonance pipeline is smaller than that of the resonance cavity.

In the technical scheme, the noise reduction cavities comprise a first noise reduction cavity by reasonably arranging the noise reduction cavities, the first noise reduction cavity comprises a resonance pipeline and a resonance chamber, and the resonance pipeline is communicated with the resonance chamber and the communication part. Specifically, when the food processer works, partial sound waves in the food processer are transmitted to the resonance cavity through the resonance pipeline, then transmitted to the resonance pipeline through the resonance cavity and transmitted to the first air channel. That is to say, the inlet and the outlet of the first noise reduction cavity are of the same structure, and the sound wave is transmitted into the resonant cavity chamber through the resonant pipeline and then is transmitted out through the resonant pipeline.

Through the cooperation structure of reasonable setting resonance pipeline and resonance chamber for the cross sectional area that overflows of resonance pipeline is less than the cross sectional area that overflows of resonance chamber, that is, resonance pipeline and resonance chamber construct the resonant cavity structure jointly, when the sound wave reaches resonance chamber, the part that is close with resonance cavity structure's natural frequency in the sound wave arouses the resonance of resonant cavity structure, in the vibration process, the sound wave in the resonant cavity structure rubs with the inner wall of resonance pipeline and resonance chamber, turn into mechanical energy heat energy, thereby consume the acoustic energy, can effectively reach the effect of making an uproar that absorbs sound.

Furthermore, the overflowing cross-sectional area of the resonant pipeline is smaller than that of the resonant cavity, namely, the structure of the first noise reduction cavity is reasonably arranged, so that the sound wave and the first noise reduction cavity are coupled, and the noise reduction effect of the noise reduction device can be ensured.

In any one of the above technical solutions, further, the flow cross-sectional area S1 of the resonance pipeline, the volume V1 of the resonance chamber, the length L1 of the resonance pipeline, the sound velocity c1, and the target noise reduction frequency f1 of the food processor satisfy:

L1≥2mm。

in this technical scheme, when the cooking machine is worked, the target noise reduction frequency characteristic is kept unchangeable, and the overflowing cross-sectional area S1 of the resonance pipeline, the volume V1 of the resonance cavity, the length L1 of the resonance pipeline and the sound velocity c1 all have relevance with the target noise reduction frequency f1 of the cooking machine. That is to say, when guaranteeing the noise reduction effect of the device of making an uproar, effectively adapt to the inner space overall arrangement of cooking machine, be favorable to reducing the occupancy of the device of making an uproar to cooking machine inner space, and then be favorable to realizing the miniaturization of cooking machine.

Specifically, the length L1 of the resonant duct includes 3mm, 4mm, 5mm, 6mm, and the like, which are not exemplified here.

In any of the above technical solutions, further, the plurality of noise reduction cavities include a second noise reduction cavity, the second noise reduction cavity is a wavelength tube, and the wavelength tube is communicated with the communicating portion.

In this technical scheme, through the structure that rationally sets up a plurality of chambeies of making an uproar that fall for a plurality of chambeies of making an uproar fall including the second and fall the chamber of making an uproar, wherein, the chamber of making an uproar is the wavelength pipe for the second, and makes wavelength pipe and intercommunication portion intercommunication. The size of the wave length pipe has relevance with the target noise reduction frequency of the food processor. When the food processor works, the sound waves in the first air channel are transmitted into the wavelength tube through the communicating part and then transmitted out through the communicating part. That is, the wavelength tube has only one opening, and the sound wave is transmitted into the wavelength tube from the communicating portion, and a part of the sound wave is absorbed and a part of the sound wave is transmitted out from the same communicating portion.

When the food processer works, the noise frequency characteristic is kept unchanged, and the size of the wave tube is associated with the target noise reduction frequency of the food processer, so that the purpose of eliminating the noise corresponding to the target noise reduction frequency can be achieved. Through setting up the wavelength pipe that corresponds with the target noise reduction frequency, can have corresponding ground to reduce the operation noise of cooking machine, and the noise reduction effect is good.

Specifically, the sound wave enters the waveguide through the communicating part, reaches the bottom of the waveguide and is reflected, the reflected wave and the incident wave are overlapped to form a standing wave, the node of the standing wave is located at the bottom of the waveguide, when the antinode of the standing wave is located at the communicating part, resonance is generated, the particle amplitude is the largest at this moment, the consumed sound energy is the largest, and therefore the sound absorption effect is remarkable at the resonance frequency.

That is to say, the wavelength tube of this application can carry out noise reduction to specific frequency channel noise, and noise reduction effect is good.

In any one of the above technical solutions, further, the sound velocity c2, the length L2 of the wavelength tube, and the target noise reduction frequency f2 of the food processor satisfy:

in this technical scheme, the cooking machine during operation, the frequency characteristic of making an uproar falls in the target and remains unchanged, and the sound velocity c2, the length L2 of wavelength pipe and the frequency f2 of making an uproar falls in the target of cooking machine satisfies:

that is, the sound velocity c2 and the length L2 of the wave tube have a correlation with the target noise reduction frequency f2 of the food processor. The length of the wavelength tube is inversely related to the target noise reduction frequency. The longer the length of the wave length tube is, the lower the target noise reduction frequency is; the shorter the length of the wave length tube, the higher the target noise reduction frequency.

Specifically, the flow cross-sectional area of the waveguide tube is positively correlated with the amount of sound attenuation. The larger the flow cross-sectional area of the corrugated pipe is, the larger the sound deadening quantity is; the smaller the flow cross-sectional area of the wave tube is, the smaller the amount of sound absorption is.

In any of the above technical solutions, further, the target noise reduction frequencies corresponding to any two of the plurality of noise reduction cavities are different.

In the technical scheme, the structures of the plurality of noise reduction cavities are reasonably arranged, so that the target noise reduction frequencies corresponding to any two noise reduction cavities in the plurality of noise reduction cavities are different, the noise corresponding to the plurality of target noise reduction frequencies can be subjected to noise reduction treatment by the aid of the plurality of noise reduction cavities, and effective and reliable structural support is provided for broadband sound absorption.

Specifically, the target noise reduction frequencies corresponding to any two of the plurality of noise reduction cavities are different, and the size of the noise reduction cavity is related to the target noise reduction frequency, so that the size of any two of the plurality of noise reduction cavities can be understood as different.

In any of the above technical solutions, further, the housing includes a multi-layer housing body, the first air duct includes a plurality of sub-air ducts, and each layer of the housing body is provided with one sub-air duct; a plurality of noise reduction cavities are enclosed between any two adjacent layers of shell bodies.

In this technical scheme, through the structure of reasonable setting casing for the casing includes multilayer shell body, and surrounds out a plurality of chambeies of making an uproar of falling between arbitrary adjacent two-layer shell body. That is to say, the casing is inside to have the multilayer region, and every in situ is provided with a plurality of chambeies of making an uproar that fall, should set up the inner space of rationally arranging the device of making an uproar, has increased the quantity of making an uproar the chamber of making an uproar, is favorable to according to the in-service use demand, has pertinence to set up the structure in a plurality of chambeies of making an uproar that fall, falls the noise that the frequency corresponds and fall for a plurality of targets and makes an uproar and provide effectual structural support.

Further, the first air duct comprises a plurality of sub-air ducts, and each layer of shell body is provided with one sub-air duct. After the multilayer shell body is assembled together, any two adjacent sub-air channels in the plurality of sub-air channels are correspondingly connected, namely, the plurality of sub-air channels enclose the first air channel.

In any of the above technical solutions, further, the case body includes: the partition plate is provided with a through hole, and the sub-air ducts are positioned on the periphery of the through hole; and the coamings are arranged on the partition plate, in any two adjacent layers of shell bodies, the coamings of one shell body are abutted against the partition plate of the other shell body, and a plurality of noise reduction cavities are encircled between the partition plate and the coamings.

In this technical scheme, the shell body includes baffle and bounding wall. The partition board is provided with through holes, the sub air ducts are located on the periphery of the through holes, and the through holes can ensure that any two adjacent sub air ducts in the plurality of sub air ducts are communicated.

In addition, the coaming is arranged on the partition board, and in any two adjacent layers of shell bodies, the coaming of one shell body is propped against the partition board of the other shell body. That is, the bounding wall and the baffle of arbitrary adjacent two-layer shell body cooperate, when satisfying the user demand that forms a plurality of chambeies of making an uproar that fall, reduce to enclose to close and fall the material ground input in the chamber of making an uproar, are favorable to reducing the manufacturing cost of product. Simultaneously, this setting is when guaranteeing a plurality of chambeies of making an uproar of falling, is favorable to reducing the whole overall dimension who falls the device of making an uproar, and then is favorable to reducing the occupancy of falling the device of making an uproar to cooking machine inner space, the rational overall arrangement of other constitution devices of the cooking machine of being convenient for.

It can be understood that in any two adjacent layers of shell bodies, the enclosing plate of one shell body is abutted against the partition plate of the other shell body. Namely, the coaming of one shell body is connected with the clapboard of the other shell body so as to ensure the airtight requirement of the noise reduction cavity.

In any one of the above technical solutions, further, in any two adjacent layers of shell bodies, the coamings of one shell body and the coamings of the other shell body are arranged in a staggered manner.

In this technical scheme, through the arrangement position of the bounding wall of the reasonable two adjacent layers of shell body that sets up, make in arbitrary two adjacent layers of shell body, the bounding wall of a shell body, with the bounding wall staggered arrangement of another shell body, when satisfying the user demand that forms a plurality of chambeies of making an uproar of falling, be favorable to increasing the interval between two adjacent baffles in every shell body, like this, can reduce the processing degree of difficulty of production shell body, be favorable to reducing production cost, and be favorable to prolonging the life of the mould of production shell body.

In any of the above technical solutions, further, the noise reduction device further includes a sealing member, and the sealing member is used for sealing a joint of any two adjacent layers of shell bodies.

In this technical scheme, the device of making an uproar still includes the sealing member, the sealing member is located the junction of arbitrary adjacent two-layer shell body, namely, utilize the junction of sealing member sealed arbitrary adjacent two-layer shell body, therefore, can avoid the air current to leak by the junction of arbitrary adjacent two-layer shell body, guarantee the good leakproofness of the junction of adjacent two-layer shell body, prescribe a limit to the flow path of air current with this, and then can guarantee to fall the effective contact of the chamber of making an uproar and sound wave, the noise reduction effect for promoting the device of making an uproar provides effective and reliable structural support.

In addition, the sealing member is located the junction of arbitrary adjacent two-layer shell body, can play the effect of damping, like this, the cooking machine during operation can avoid the hard contact between the adjacent two-layer shell body, is favorable to reducing the noise reduction effect that further promotes the device of making an uproar that falls.

Specifically, the sealing element is a sealing ring. Further, the sealing member is a rubber member.

In any of the above technical solutions, further, the two outermost shell bodies in the multi-layer shell body are denoted as a first shell body and a second shell body, at least one of the first shell body and the second shell body is provided with a guide post, the shell body located between the first shell body and the second shell body is provided with a guide hole, and the guide post can be inserted into the guide hole.

In this technical scheme, through the cooperation structure of reasonable setting multilayer shell body for outermost two-layer shell body in the multilayer shell body marks first shell body and second shell body, and makes first shell body be provided with the guide post, or makes second shell body be provided with the guide post, or makes first shell body and second shell body all be provided with the guide post. In addition, the case body located between the first case body and the second case body is provided with a guide hole. Thus, when the multi-layered housing body is assembled, the guide post can be inserted into the guide hole to complete the assembly of the multi-layered housing body. The guide post is connected with the guide hole in a matched mode to limit the relative displacement of the adjacent two layers of shell bodies, the matching size between the adjacent two layers of shell bodies can be guaranteed, and the overall dimension of the noise reduction device can be guaranteed.

Furtherly, guide post and guiding hole cooperate in order to guide the assembly of adjacent both sides shell body, have reduced the cooperation degree of difficulty of adjacent both sides shell body, are favorable to promoting the dismouting efficiency of multilayer shell body.

Specifically, at least one guide post is arranged at each corner of the first shell body; or at least one guide post is arranged at each corner of the second shell body; or at least one guide post is arranged at each corner of the first shell body and each corner of the second shell body. This arrangement can ensure the fitting dimension of the multilayer case body.

In any of the above technical solutions, further, the partition board is provided with an insertion slot, and in any two adjacent layers of shell bodies, the coaming of one shell body is inserted into the insertion slot of the other shell body.

In this technical scheme, through the cooperation structure of the bounding wall and the baffle of reasonable two adjacent layers of shell body that sets up for in arbitrary two adjacent layers of shell body, the bounding wall of a shell body inserts in the slot of another shell body. The slot can wrap the end part of the enclosing plate inserted into the slot, so that the airtightness of the joint of the enclosing plate and the partition plate is improved, and effective and reliable structural support is provided for limiting the flow path of the airflow.

That is, the bounding wall and the baffle of arbitrary adjacent two-layer shell body cooperate, when satisfying the user demand that forms a plurality of chambeies of making an uproar that fall, reduce to enclose to close and fall the material ground input in the chamber of making an uproar, are favorable to reducing the manufacturing cost of product. Simultaneously, this setting is when guaranteeing a plurality of volumes of falling the chamber of making an uproar, is favorable to reducing the whole overall dimension who falls the device of making an uproar, and then is favorable to reducing the occupancy of falling the device of making an uproar to cooking machine inner space, the rational layout of other component devices of the cooking machine of being convenient for.

In any of the above technical solutions, further, a water receiving tank and a water leakage hole are provided on the outer surface of the housing, the water receiving tank being communicated with the water leakage hole; wherein, the noise reduction cavity is positioned at one side of the water leakage hole.

In this technical scheme, through the structure of reasonable setting casing for the surface of casing is provided with water receiving tank and the hole that leaks, and the water receiving tank is linked together with the hole that leaks, also promptly, when the comdenstion water drips to the casing on, the comdenstion water can flow to the hole department that leaks along the water receiving tank, and then the device of making an uproar falls in the discharge, has reduced the comdenstion water seepage to the emergence probability that will fall the chamber of making an uproar, can guarantee the noise reduction effect of the device of making an uproar. This setting has richened the service function of making an uproar device of falling, has promoted the performance and the market competition of making an uproar device of falling.

Furthermore, the noise reduction cavity is positioned on one side of the water leakage hole, and the water flow discharged from the water leakage hole is positioned on one side of the noise reduction cavity, so that the condensed water can be effectively prevented from flowing to the noise reduction cavity.

In any one of the above technical solutions, further, an air guide groove is disposed on one side of the casing away from the water receiving groove.

In the technical scheme, one side of the shell, which is far away from the water receiving groove, is provided with the air guide groove, so that the noise reduction device has the function of guiding air flow, and the flow path of the air flow is limited. This setting has richened the service function of making an uproar device of falling, has promoted the performance and the market competition of making an uproar device of falling.

A second aspect of the present invention provides a base for a food processor, the base comprising: the noise reduction apparatus according to any of the first aspect.

The base provided by the invention comprises the noise reduction device according to any one of the technical solutions of the first aspect, so that all the beneficial effects of the noise reduction device are achieved, and no description is made herein.

Specifically, the number of noise reducing devices is at least one.

In the above technical solution, further, the base further includes: the seat body is provided with a second air duct in the seat body, the seat body is further provided with an air inlet and an air outlet, the second air duct is communicated with the air inlet and the air outlet, and the noise reduction device is located in the second air duct.

In this technical scheme, the base still includes: the seat body, this internal second wind channel that is provided with of seat, second wind channel and air intake intercommunication, and second wind channel and air outlet intercommunication, that is, second wind channel intercommunication air intake and air outlet. The noise reduction device is positioned in the second air channel so as to ensure effective contact of the noise reduction device and sound waves and provide effective structural support for noise reduction treatment of the noise reduction device.

In any of the above technical solutions, further, the base further includes: and the sound absorption cotton is positioned in the second air channel and is positioned on the peripheral side of the noise reduction device.

In this technical scheme, the base is still including inhaling the sound cotton, inhales the sound cotton and is located the second wind channel, inhales the sound cotton and can play the effect of making an uproar, also promptly, inhales the sound cotton and falls the device of making an uproar and cooperate to the realization carries out multistage noise reduction to the sound wave and handles, is favorable to promoting the noise reduction of cooking machine.

Specifically, the cooking machine includes cup body assembly, and cup body assembly includes the pedestal, is provided with motor and flabellum in the pedestal, and motor drive flabellum rotates, pedestal and second wind channel intercommunication. During operation, the motor drive flabellum rotates to breathe in from the air intake of base, the air current is through inhaling behind sound cotton, motor and the flabellum, the device of making an uproar falls in the flow direction, then by the air outlet discharge cooking machine. That is to say, after the air intake enters the second air duct, the noise is reduced through the sound-absorbing cotton, and then the noise is reduced through the noise reducing device, so that the multistage noise reduction treatment is realized. The sound-absorbing cotton is positioned on the periphery of the noise reduction device, and effective structural support is provided for multistage noise reduction treatment.

In any of the above technical solutions, further, a first opening is provided at the top of the seat body, the first opening is communicated with the second air duct, and the first opening is used for being communicated with the cup body assembly of the food processor; an air inlet and an air outlet are arranged at the bottom of the seat body, at least one part of the air inlet is arranged corresponding to the sound-absorbing cotton, and at least one part of the air outlet is arranged corresponding to the first air channel.

In this technical scheme, through the structure that sets up the seat body rationally for the seat body is provided with first opening, air intake and air outlet. Specifically, the top of the seat body is provided with a first opening, and the bottom of the seat body is provided with an air inlet and an air outlet.

The cup body assembly of the food processor is detachably arranged at the top of the base, the first opening is arranged at the top of the base body, and therefore the air flow entering the second air channel from the air inlet can flow to the motor of the cup body assembly through the first opening, namely, the smoothness of an air flow path is guaranteed.

In addition, the bottom of seat body is provided with air intake and air outlet, when guaranteeing the smooth and easy nature that the air current flows, has the effect of hiding air intake and air outlet, avoids air intake and air outlet to expose, is favorable to promoting the aesthetic property of product appearance.

Further, at least a part of air intake with inhale the cotton corresponding setting of sound for the air current that gets into through the air intake need flow through inhale the sound cotton, with the effective contact of guaranteeing to inhale sound cotton and air current, and then guarantee to inhale the cotton noise reduction of sound effect.

Furthermore, at least one part of the air outlet is arranged corresponding to the first air channel, so that the air flow can be ensured to flow to the air outlet after the noise reduction treatment of the noise reduction device, and the noise reduction effect of the noise reduction device is ensured.

A third aspect of the present invention provides a food processor, including: the base according to any of the second aspect.

The food processor provided by the invention comprises the base according to any one of the technical schemes in the second aspect, so that all the beneficial effects of the base are achieved, and the description is omitted.

In above-mentioned technical scheme, further, the cooking machine still includes: cup body component, cup body component and base detachable connections.

In this technical scheme, the cooking machine still includes cup body assembly, cup body assembly and base detachable connections, cup body assembly are used for the take up to eat the material to the function (if, smash the edible material, the heating is eaten material etc.) of cooking the material is eaten to the utensil. Cup body assembly and base detachable connections, the base has the effect of supporting and fixed cup body assembly, cup body assembly can assemble together with the base, cup body assembly also can separate with the base.

In any of the above technical solutions, further, the cup body assembly includes: a cup body; the crushing knife is positioned in the cup body; the seat body is connected with the cup body and is provided with a second opening; the motor is positioned in the seat body and comprises a driving shaft, and the first end of the driving shaft extends into the cup body and is connected with the crushing cutter; the fan blade is positioned in the seat body, and the second end of the driving shaft is connected with the fan blade; wherein the first opening and the second opening of the base are communicated.

In this technical scheme, cup subassembly includes cup, crushing sword, pedestal, motor and flabellum. The seat body is provided with a second opening which is communicated with the first opening, namely, the seat body is communicated with the second air duct of the base.

Specifically, cup subassembly includes the pedestal, is provided with motor and flabellum in the pedestal, and the motor drive smashes sword pivoted and drive the flabellum and rotate simultaneously. During operation, the motor drive flabellum rotates to breathe in from the air intake of base, the air current is cotton through inhaling the sound, by first opening flow direction second opening, the air current is behind motor and flabellum, again by the first opening of second opening flow direction to, and to falling the device of making an uproar, then by air outlet discharge cooking machine. This setting can guarantee the effective contact of air current and motor and flabellum to utilize external cold air to the motor and the fan heat dissipation, can guarantee the operating temperature of motor, provide structural support for the life of extension motor.

It can be understood that the motor rotates at a high speed to generate rotary power, and the motor can generate heat when working, so that a driving shaft of the motor is connected with the fan blades, and the fan blades are used for dissipating heat of the motor. When the motor works and drives the fan blades to rotate, vibration noise and wind resistance turbulence noise can be generated, namely, the main noise source of the food processor comprises the motor and the fan blades. Therefore, the noise reduction treatment is carried out by using the sound absorption cotton and the noise reduction device.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic configuration of a first viewing angle of a noise reducing device according to a first embodiment of the present invention;

fig. 2 is a schematic structural view showing a second view angle of the noise reducing device according to the first embodiment of the present invention;

fig. 3 is a schematic structural view showing a third viewing angle of the noise reducing device according to the first embodiment of the present invention;

fig. 4 is a schematic view showing a first-view structure of a noise reducing device according to a second embodiment of the present invention;

fig. 5 shows a schematic structural view from a second perspective of a noise reducing device according to a second embodiment of the present invention;

fig. 6 is a schematic diagram showing a third perspective structure of a noise reducer according to a second embodiment of the present invention;

fig. 7 shows a schematic structural diagram of a fourth viewing angle of a noise reduction apparatus according to a second embodiment of the present invention;

fig. 8 is a schematic structural view showing a fifth viewing angle of the noise reducing device according to the second embodiment of the present invention;

fig. 9 is a schematic structural view showing a sixth viewing angle of the noise reducing device according to the second embodiment of the present invention;

fig. 10 is a partial schematic view showing a first view angle of a noise reducing device according to a second embodiment of the present invention;

fig. 11 is a partial structural view showing a second viewing angle of a noise reducing device according to a second embodiment of the present invention;

fig. 12 is a partial schematic structural view showing a third viewing angle of a noise reducing device according to a second embodiment of the present invention;

fig. 13 is a partial schematic structural view showing a fourth perspective of the noise reducing device according to the second embodiment of the present invention;

fig. 14 is a partial structural view showing a fifth perspective of the noise reducing device of the second embodiment of the present invention;

fig. 15 is a partial schematic structural view showing a sixth viewing angle of a noise reducing device according to a second embodiment of the present invention;

fig. 16 shows an exploded view from a first perspective of a noise reducer of a second embodiment of the present invention;

FIG. 17 illustrates an exploded view from a second perspective of a noise reducer of a second embodiment of the present invention;

FIG. 18 illustrates an exploded view from a third perspective of a noise reducer assembly according to a second embodiment of the present invention;

FIG. 19 illustrates an exploded view from a fourth perspective of a noise reducer assembly according to a second embodiment of the present invention;

fig. 20 shows a schematic structural view of a case body of a second embodiment of the present invention;

fig. 21 is a partial schematic structural view of a first viewing angle of the food processor according to an embodiment of the invention;

fig. 22 is a partial schematic structural view of a second viewing angle of the food processor according to the embodiment of the invention;

fig. 23 is an enlarged view of a portion a of the food processor shown in fig. 22;

fig. 24 is a partial schematic structural view of a food processor according to an embodiment of the present invention;

fig. 25 is a schematic structural diagram of a first view angle of the food processor according to the embodiment of the present invention;

fig. 26 is a schematic structural diagram of a second view angle of the food processor according to the embodiment of the invention;

fig. 27 is a schematic structural diagram of a third viewing angle of the food processor according to the embodiment of the present invention;

FIG. 28 shows a partial structural view of a base of an embodiment of the invention;

FIG. 29 is a partial schematic view of a first subgrouping of an embodiment of the invention;

FIG. 30 shows an exploded view of a first sub-lid of an embodiment of the invention;

FIG. 31 is a partial schematic structural view of a second sub-cover according to an embodiment of the present invention;

fig. 32 is a data graph showing the amount of sound deadening of the food processor of the present invention and the related art food processor.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to fig. 31 is:

100 food processor, 110 base, 112 base body, 116 first opening, 118 air inlet, 119 air outlet, 120 cover body component, 122 outer cover, 130 containing cavity, 140 cup body component, 142 cup body, 144 crushing knife, 146 base body, 148 motor, 150 driving shaft, 152 fan blade, 170 noise reduction device, 172 shell, 174 first air duct, 176 communicating part, 178 first noise reduction cavity, 180 resonance pipeline, 182 resonance cavity, 184 second noise reduction cavity, 186 shell body, 188 partition board, 192 enclosing plate, 194 slot, 196 guide column, 200 water receiving groove, 202 water leakage hole, 204 air guide groove, 210 sound absorption cotton, 220 first sub cover, 222 channel, 224 first cavity, 226 first air inlet, 228 air outlet, 230 communicating structure, 232 first sub shell, 234 second sub shell, 236 cover plate, 238 first enclosing edge, 240 second sub cover, 242 second air inlet, 244

second cavity

246, 250 second sealing part, 250 third sealing part, 270 first sealing part.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.

The noise reduction device 170, the base 110 and the food processor 100 according to some embodiments of the invention are described below with reference to fig. 1 to 32.

Example 1:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, and fig. 9, an embodiment of the first aspect of the present invention provides a noise reduction device 170 for a food processor 100, including: the casing 172 is provided with a plurality of noise reduction cavities in the casing 172, the casing 172 is further provided with a first air duct 174, a plurality of communicating parts 176 are arranged on the side wall of the first air duct 174, and each noise reduction cavity is communicated with at least one communicating part 176.

In detail, the noise reduction device 170 includes a housing 172, a plurality of noise reduction cavities are disposed in the housing 172, the housing 172 is further provided with a first air duct 174, and a plurality of communicating portions 176 are disposed on a side wall of the first air duct 174, wherein each noise reduction cavity is communicated with at least one communicating portion 176. The sound waves generated by the food processor 100 during operation are transmitted to the plurality of communicating portions 176 through the first air duct 174, enter the plurality of noise reduction cavities, and then are transmitted out of the noise reduction device 170 through the plurality of noise reduction cavities. That is, the noise reduction chamber has the same structure (i.e., the communicating portion 176) as the inlet and the outlet of the noise reduction chamber, and the acoustic wave is transmitted into the noise reduction chamber from the communicating portion 176 and then is transmitted out from the communicating portion 176.

Through the reasonable structure that sets up the device 170 of making an uproar that falls for the device 170 of making an uproar includes a plurality of chambeies of making an uproar that fall, falls the sound wave in the intracavity and falls the inner wall friction in chamber of making an uproar, turns into heat energy with mechanical energy, thereby consumes sound energy, can effectively reach the effect of making an uproar of absorbing sound.

It can be understood that, when the food processor 100 operates, the characteristic of the target noise reduction frequency is kept unchanged, and the noise reduction device 170 has a correlation with the target noise reduction frequency of the food processor 100, so as to achieve the purpose of eliminating the specific target noise reduction frequency. The operating noise of the food processor 100 can be reduced in a targeted manner, and the noise reduction effect is good.

In the present embodiment, each noise reduction chamber communicates with one communication portion 176.

In other embodiments, each noise reduction cavity is in communication with a plurality of communication portions 176.

Further, a plurality of noise reduction chambers are located on the peripheral side of the first air duct 174.

Wherein, in this technical scheme, through the cooperation structure that rationally sets up a plurality of chambeies of making an uproar and first wind channel 174 of making an uproar for a plurality of chambeies of making an uproar are located first wind channel 174 and are week side, like this, can the structure of first wind channel 174 of rational utilization, provide effective and reliable structural support guaranteeing the cooperation size in a plurality of intercommunications 176 and a plurality of chambeies of making an uproar.

Example 2:

as shown in fig. 1 to 9, on the basis of embodiment 1, embodiment 2 provides a noise reduction device 170 for a food processor 100, including: the casing 172 is provided with a plurality of noise reduction cavities in the casing 172, the casing 172 is further provided with a first air duct 174, a plurality of communicating parts 176 are arranged on the side wall of the first air duct 174, and each noise reduction cavity is communicated with at least one communicating part 176.

Further, as shown in fig. 10, 11, 12 and 13, the plurality of noise reduction cavities includes a first noise reduction cavity 178, the first noise reduction cavity 178 includes a resonance conduit 180 and a resonance chamber 182, and the resonance conduit 180 communicates the resonance chamber 182 with the communicating portion 176; wherein the flow cross-sectional area of the resonant duct 180 is smaller than the flow cross-sectional area of the resonant chamber 182.

In detail, the noise reduction cavities include a first noise reduction cavity 178, the first noise reduction cavity 178 includes a resonance pipe 180 and a resonance chamber 182, and the resonance pipe 180 communicates the resonance chamber 182 and the communicating portion 176 by reasonably arranging the structure of the noise reduction cavities. Specifically, when the food processor 100 is in operation, a part of the sound waves in the food processor 100 is transmitted to the resonant cavity 182 through the resonant duct 180, and then transmitted to the resonant duct 180 from the resonant cavity 182, and then transmitted to the first air duct 174. That is, the inlet and the outlet of the first noise reduction cavity 178 are of the same structure, and the sound wave is transmitted into the resonance cavity 182 from the resonance pipe 180 and then transmitted out from the resonance pipe 180.

Through reasonable arrangement of the matching structure of the resonance pipeline 180 and the resonance chamber 182, the flow cross-sectional area of the resonance pipeline 180 is smaller than that of the resonance chamber 182, that is, the resonance pipeline 180 and the resonance chamber 182 jointly form a resonance cavity structure, when sound waves are transmitted to the resonance chamber 182, the part of the sound waves close to the natural frequency of the resonance cavity structure causes resonance of the resonance cavity structure, and in the vibration process, the sound waves in the resonance cavity structure rub against the inner walls of the resonance pipeline 180 and the resonance chamber 182 to convert mechanical energy into heat energy, so that sound energy is consumed, and the effects of sound absorption and noise reduction can be effectively achieved.

In addition, the flow cross-sectional area of the resonant pipe 180 is smaller than that of the resonant cavity 182, that is, the structure of the first noise reduction cavity 178 is reasonably arranged, so that the coupling between sound waves and the first noise reduction cavity 178 is facilitated, and the noise reduction effect of the noise reduction device 170 can be ensured.

Further, the flow cross-sectional area S1 of the resonant duct 180, the volume V1 of the resonant cavity 182, the length L1 of the resonant duct 180, the sound velocity c1, and the target noise reduction frequency f1 of the food processor 100 satisfy:

L1≥2mm。

when the food processor 100 is in operation, the target noise reduction frequency characteristic is kept unchanged, and the flow cross-sectional area S1 of the resonant duct 180, the volume V1 of the resonant cavity 182, the length L1 of the resonant duct 180, and the sound velocity c1 all have a correlation with the target noise reduction frequency f1 of the food processor 100. That is to say, while guaranteeing the noise reduction effect of the noise reduction device 170, effectively adapt to the internal space layout of the food processer 100, be favorable to reducing the occupancy rate of the noise reduction device 170 to the internal space of the food processer 100, and then be favorable to realizing the miniaturization of the food processer 100.

Specifically, the length L1 of the resonant duct 180 includes 3mm, 4mm, 5mm, 6mm, and the like, which are not exemplified herein.

Example 3:

as shown in fig. 1 to 9, on the basis of embodiment 1 or embodiment 2, embodiment 3 provides a noise reduction device 170 for a food processor 100, including: the casing 172 is provided with a plurality of noise reduction cavities in the casing 172, the casing 172 is further provided with a first air duct 174, a plurality of communicating parts 176 are arranged on the side wall of the first air duct 174, and each noise reduction cavity is communicated with at least one communicating part 176.

Further, as shown in fig. 12 and 13, the plurality of noise reduction chambers includes a second noise reduction chamber 184, and the second noise reduction chamber 184 is a wavelength tube that communicates with the communicating portion 176.

In detail, by reasonably setting the structure of the plurality of noise reduction cavities, the plurality of noise reduction cavities include the second noise reduction cavity 184, wherein the second noise reduction cavity 184 is a wavelength tube, and the wavelength tube is communicated with the communicating portion 176. The size of the wave tube has a correlation with the target noise reduction frequency of the food processor 100. When the food processor 100 operates, the sound waves in the first air duct 174 are transmitted into the wavelength tube through the communication portion 176 and then transmitted out through the communication portion 176. That is, the wavelength tube has only one opening, and the sound wave is transmitted into the wavelength tube from the communicating portion 176, and a part of the sound wave is absorbed and a part of the sound wave is transmitted out from the same communicating portion 176.

When the food processer 100 works, the noise frequency characteristic is kept unchanged, and the size of the wave pipe has relevance to the target noise reduction frequency of the food processer 100, so that the purpose of eliminating the noise corresponding to the target noise reduction frequency can be achieved. Through setting up the wavelength pipe that corresponds with the target noise reduction frequency, can make a pertinence to reduce cooking machine 100's operating noise, and the noise reduction effect is good.

Specifically, the sound wave is transmitted into the wave tube through the communicating portion 176, reaches the bottom of the wave tube, and is reflected, the reflected wave and the incident wave are superposed to form a standing wave, the node of the standing wave is located at the bottom of the wave tube, and when the antinode of the standing wave is located at the communicating portion 176, resonance is generated, the particle amplitude is the largest, the consumed sound energy is the largest, and therefore, the sound absorption effect is remarkable at the resonance frequency.

Specifically, the plurality of noise reduction cavities includes at least one first noise reduction cavity 178 and at least one second noise reduction cavity 184; or the plurality of noise reduction cavities includes a plurality of first noise reduction cavities 178; alternatively, the plurality of noise reduction cavities may include a plurality of second noise reduction cavities 184, with one second noise reduction cavity 184 being used to remove a band of noise and one first noise reduction cavity 178 being used to remove a band of frequency noise. That is, the number of the first noise reduction cavity 178 and the second noise reduction cavity 184 can be set according to actual use requirements, so as to achieve the purpose of noise at the target frequency.

For example, the broadband sound absorption is realized by utilizing the matching relationship between the first noise reduction cavities 178 with different specifications and the second noise reduction cavities 184 with different specifications.

Specifically, the first noise reduction cavity 178 includes a resonant duct 180 and a resonant cavity 182. The first noise reduction cavity 178 belongs to a narrow band muffler. The muffling frequency of the second muffling cavity 184 (i.e., the wavelength tube) is related to the length of the wavelength tube, and the longer the wavelength tube is, the lower the muffling frequency is, so that the first muffling cavity 178 and the second muffling cavity 184 cooperate with each other to increase the muffling bandwidth and reduce the noise in a wide frequency range.

Further, the sound velocity c2, the length L2 of the wavelength tube, and the target noise reduction frequency f2 of the food processor 100 satisfy:

wherein, the during operation of cooking machine 100, the frequency characteristic of making an uproar falls in the target and remains unchanged, and the sound velocity c2, the length L2 of wavelength pipe and the frequency f2 of making an uproar falls in the target of cooking machine 100 satisfies:

that is, the sound velocity c2 and the length L2 of the wave tube have a correlation with the target noise reduction frequency f2 of the food processor 100. The length of the wavelength tube is inversely related to the target noise reduction frequency. The longer the length of the wave length tube is, the lower the target noise reduction frequency is; the shorter the length of the wave length tube, the higher the target noise reduction frequency.

Specifically, the flow cross-sectional area of the waveguide tube is positively correlated with the amount of noise reduction. The larger the flow cross-sectional area of the wave tube is, the larger the noise elimination quantity is; the smaller the flow cross-sectional area of the wave tube is, the smaller the noise elimination amount is.

Example 4:

as shown in fig. 1 to 9, on the basis of any one of the above embodiments, embodiment 4 provides a noise reduction device 170 for a food processor 100, including: the noise reduction device comprises a shell 172, wherein a plurality of noise reduction cavities are arranged in the shell 172, the shell 172 is further provided with a first air duct 174, a plurality of communicating parts 176 are arranged on the side wall of the first air duct 174, and each noise reduction cavity is communicated with at least one communicating part 176.

Furthermore, the target noise reduction frequencies corresponding to any two noise reduction cavities in the plurality of noise reduction cavities are different.

In detail, through the structure that rationally sets up a plurality of chambeies of making an uproar for the target that the chamber corresponds is made an uproar to fall in two arbitrary chambers of making an uproar of making a plurality of target and falls the frequency of making an uproar different, like this, the noise that the chamber corresponds is made an uproar to a plurality of targets of making an uproar of usable a plurality of falls and is fallen the noise processing, provides effective and reliable structural support for realizing the wide band sound absorption.

In other embodiments, the target noise reduction frequencies for some of the plurality of noise reduction cavities are the same.

Example 5:

as shown in fig. 1 to 9, on the basis of any one of the above embodiments, embodiment 5 provides a noise reduction device 170 for a food processor 100, including: the casing 172 is provided with a plurality of noise reduction cavities in the casing 172, the casing 172 is further provided with a first air duct 174, a plurality of communicating parts 176 are arranged on the side wall of the first air duct 174, and each noise reduction cavity is communicated with at least one communicating part 176.

Further, as shown in fig. 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20, the housing 172 includes a multi-layer housing body 186, the first air duct 174 includes a plurality of sub-air ducts, and each layer of the housing body 186 is provided with one sub-air duct; a plurality of noise reduction cavities are enclosed between any two adjacent layers of shell bodies 186.

In detail, through the structure of the shell 172 which is reasonably arranged, the shell 172 includes a plurality of shell bodies 186, and a plurality of noise reduction cavities are enclosed between any two adjacent shell bodies 186. That is to say, the shell 172 has multiple layers of regions therein, and each layer of region is provided with multiple noise reduction cavities, so that the internal space of the noise reduction device 170 is reasonably arranged, the number of the noise reduction cavities is increased, and the targeted setting of the structures of the multiple noise reduction cavities according to actual use requirements is facilitated, thereby providing effective structural support for noise reduction corresponding to multiple target noise reduction frequencies.

In addition, the first air duct 174 includes a plurality of sub-air ducts, and each layer of the housing body 186 is provided with one sub-air duct. After the multi-layer shell body 186 is assembled together, any two adjacent sub-air ducts of the plurality of sub-air ducts are correspondingly connected, that is, the plurality of sub-air ducts enclose the first air duct 174.

Further, as shown in fig. 10 to 20, the case body 186 includes: the partition plate 188 is provided with a through hole, and the sub air ducts are positioned on the periphery of the through hole; and the enclosing plates 192 are arranged on the partition plates 188, in any two adjacent layers of shell bodies 186, the enclosing plate 192 of one shell body 186 is abutted against the partition plate 188 of the other shell body 186, and a plurality of noise reduction cavities are enclosed between the partition plates 188 and the enclosing plates 192.

In detail, the housing body 186 includes a bulkhead 188 and a shroud 192. The partition 188 is provided with through holes, and the sub-air ducts are located on the peripheral sides of the through holes, and the through holes can ensure that any two adjacent sub-air ducts in the plurality of sub-air ducts are communicated.

The shroud 192 is provided on the partition 188, and in any two adjacent housing bodies 186, the shroud 192 of one housing body 186 abuts against the partition 188 of the other housing body 186. That is, the enclosing plates 192 and the partition plates 188 of any two adjacent layers of the shell bodies 186 are matched, so that the use requirements of forming a plurality of noise reduction cavities are met, the investment of materials for enclosing the noise reduction cavities is reduced, and the production cost of products is reduced. Simultaneously, this setting is when guaranteeing the volume in a plurality of chambeies of making an uproar of falling, is favorable to reducing the whole overall dimension who falls the device 170 of making an uproar, and then is favorable to reducing the occupancy of the device 170 of making an uproar to cooking machine 100 inner space, is convenient for cooking machine 100's other reasonable layout of constituteing the device.

It will be appreciated that in any two adjacent layers of the housing bodies 186, the shroud 192 of one housing body 186 abuts the partition 188 of the other housing body 186. That is, the shroud 192 of one housing body 186 is coupled to the bulkhead 188 of the other housing body 186 to ensure the containment requirements of the noise reduction chamber.

Further, the shroud 192 of one housing body 186 is staggered with the shroud 192 of the other housing body 186 in any two adjacent housing bodies 186.

Wherein, through the arrangement position of the bounding wall 192 of the two adjacent layers of shell body 186 of reasonable setting, make in the two adjacent layers of shell body 186 of arbitrary, the bounding wall 192 of a shell body 186, with the crisscross arrangement of the bounding wall 192 of another shell body 186, when satisfying the user demand who forms a plurality of noise reduction chambers, be favorable to increasing the interval between two adjacent baffles in every shell body 186, like this, can reduce the processing degree of difficulty of producing shell body 186, be favorable to reducing production cost, and be favorable to prolonging the life of the mould of producing shell body 186.

Further, the noise reducer 170 further includes a sealing member for sealing a joint of any two adjacent layers of the shell body 186.

Wherein, the noise reduction device 170 further comprises a sealing element, the sealing element is located at the joint of any adjacent two-layer shell body 186, that is, the joint of any adjacent two-layer shell body 186 is sealed by the sealing element, thus, the air flow can be prevented from leaking from the joint of any adjacent two-layer shell body 186, the good sealing performance of the joint of the adjacent two-layer shell body 186 is ensured, thereby defining the flow path of the air flow, further ensuring the effective contact of the noise reduction cavity and the sound wave, and providing effective and reliable structural support for improving the noise reduction effect of the noise reduction device 170.

In addition, the sealing member is located the junction of any two adjacent layers of shell bodies 186, and can play a role in damping, so that the food processor 100 can avoid hard contact between two adjacent layers of shell bodies 186 during operation, and the noise reduction effect of the noise reduction device 170 can be favorably reduced.

Further, as shown in fig. 16 to 19, the outermost two-layer case body 186 of the multi-layer case body 186 is referred to as a first case body 186 and a second case body 186, at least one of the first case body 186 and the second case body 186 is provided with a guide post 196, the case body 186 located between the first case body 186 and the second case body 186 is provided with a guide hole into which the guide post 196 can be inserted.

Wherein, through the cooperation structure of reasonable setting multilayer shell body 186 for outermost two-layer shell body 186 in multilayer shell body 186 marks first shell body and second shell body, and makes first shell body be provided with guide post 196, or makes the second shell body be provided with guide post 196, or makes first shell body and second shell body all be provided with guide post 196. In addition, the case body 186 between the first case body and the second case body is provided with a guide hole. Thus, when the multi-layered case body 186 is assembled, the guide posts 196 can be inserted into the guide holes to complete the assembly of the multi-layered case body 186. The guide posts 196 are engaged with the guide holes to limit the relative displacement of the adjacent two-layer housing bodies 186, so as to ensure the engagement dimension between the adjacent two-layer housing bodies 186, and further ensure the overall dimension of the noise reducer 170.

In addition, the guide posts 196 and the guide holes are matched to guide the assembly of the shell bodies 186 on two adjacent sides, so that the matching difficulty of the shell bodies 186 on two adjacent sides is reduced, and the assembly and disassembly efficiency of the shell bodies 186 on two adjacent sides is improved.

Specifically, at least one guide post 196 is provided at each corner of the first housing body; or at least one guide post 196 is provided at each corner of the second housing body; or at least one guide post 196 may be provided at each corner of the first housing body and at each corner of the second housing body. This arrangement ensures the fitting dimension of the multi-layered case body 186.

Further, as shown in fig. 14, the partition 188 is provided with an insertion groove 194, and in any two adjacent layers of the case bodies 186, the shroud 192 of one case body 186 is inserted into the insertion groove 194 of the other case body 186.

In the above structure, the matching structure of the baffle 192 and the partition 188 of any two adjacent layers of shell bodies 186 is reasonably arranged, so that the baffle 192 of one shell body 186 in any two adjacent layers of shell bodies 186 is inserted into the slot 194 of the other shell body 186. The slots 194 are capable of wrapping around the ends of the shroud 192 inserted therein to facilitate improved sealing at the junction of the shroud 192 and the baffle 188, providing effective and reliable structural support for defining the flow path of the airflow.

That is, the enclosing plates 192 and the partition plates 188 of any two adjacent layers of the shell bodies 186 are matched, so that the use requirements of forming a plurality of noise reduction cavities are met, the investment of materials for enclosing the noise reduction cavities is reduced, and the production cost of products is reduced. Simultaneously, this setting is when guaranteeing a plurality of volumes of falling the chamber of making an uproar, is favorable to reducing the whole overall dimension who falls the device 170 of making an uproar, and then is favorable to reducing the occupancy of falling the device 170 of making an uproar to cooking machine 100 inner space, is convenient for the rational overall arrangement of other constitution devices of cooking machine 100.

Further, as shown in fig. 7, 9, 15 and 19, a water receiving groove 200 and a water leakage hole 202 are formed in the outer surface of the housing 172, and the water receiving groove 200 is communicated with the water leakage hole 202; wherein, the noise reduction cavity is positioned at one side of the water leakage hole 202.

Wherein, through the structure of reasonable setting casing 172 for the surface of casing 172 is provided with water receiving tank 200 and hole 202 that leaks, and water receiving tank 200 is linked together with hole 202 that leaks, promptly, when the comdenstion water drips to casing 172, the comdenstion water can flow to hole 202 department that leaks along water receiving tank 200, and then the device 170 of making an uproar falls in the discharge, has reduced the comdenstion water seepage to the emergence probability that will fall the chamber of making an uproar, can guarantee the noise reduction effect of the device 170 of making an uproar that falls. This setting has richened noise reducer 170's service function, has promoted noise reducer 170's performance and market competition.

In addition, the noise reduction cavity is positioned on one side of the water leakage hole 202, and the water flow discharged from the water leakage hole 202 is positioned on one side of the noise reduction cavity, so that the condensed water can be effectively prevented from flowing to the noise reduction cavity.

In this embodiment, each layer of shell body 186 is provided with a water leakage hole 202, and the water leakage holes 202 of any two adjacent layers of shell bodies 186 are correspondingly arranged.

In other embodiments, the outer surface of the housing 172 is provided with the water leakage holes 202, and the housing bodies 186, which are not provided with the water leakage holes 202, of the multi-layered housing body 186 are located on one side of the water leakage holes 202.

Further, as shown in fig. 6, 17 and 18, a wind guide groove 204 is provided on a side of the housing 172 facing away from the water receiving groove 200.

Wherein, a side of the housing 172 facing away from the water receiving tank 200 is provided with a wind guiding groove 204, so that the noise reduction device 170 has a function of guiding the airflow to define a flow path of the airflow. This setting has richened noise reducer 170's service function, has promoted noise reducer 170's performance and market competition.

Example 6:

as shown in fig. 21, fig. 22, fig. 24, fig. 25, fig. 26 and fig. 28, an embodiment of the second aspect of the present invention provides a base 110 for a food processor 100, where the base 110 includes: the noise reducer 170 of any embodiment of the first aspect.

The base 110 provided by the present invention includes the noise reducer 170 according to any of the embodiments of the first aspect, so that the noise reducer 170 has all the advantages of the above noise reducer 170, which is not described herein.

Specifically, the number of noise reducers 170 is at least one.

Further, as shown in fig. 21, 22, 24 and 28, the base 110 further includes: the seat body 112 is provided with a second air duct inside the seat body 112, the seat body 112 is further provided with an air inlet 118 and an air outlet 119, the second air duct is communicated with the air inlet 118 and the air outlet 119, and the noise reduction device 170 is located inside the second air duct.

Wherein, base 110 further includes: the seat body 112 is provided with a second air duct inside the seat body 112, the second air duct is communicated with the air inlet 118 and the air outlet 119, that is, the second air duct is communicated with the air inlet 118 and the air outlet 119. The noise reducer 170 is located in the second air duct to ensure effective contact between the noise reducer 170 and the sound waves, and provide effective structural support for noise reduction processing of the noise reducer 170.

Further, as shown in fig. 21, 22, 24 and 28, the base 110 further includes: and the sound absorption cotton 210 is positioned in the second air duct, and the sound absorption cotton 210 is positioned on the peripheral side of the noise reduction device 170.

Wherein, base 110 is still including inhaling the sound cotton 210, inhales the sound cotton 210 and is located the second wind channel, inhales the sound cotton 210 and can play the effect of making an uproar, also promptly, inhales the sound cotton 210 and falls the device 170 of making an uproar and cooperate to the realization carries out multistage noise reduction to the sound wave, is favorable to promoting cooking machine 100's noise reduction.

Specifically, the food processor 100 includes the cup assembly 140, the cup assembly 140 includes the seat 146, the motor 148 and the fan 152 are disposed in the seat 146, the motor 148 drives the fan 152 to rotate, and the seat 146 is communicated with the second air duct. In operation, the motor 148 drives the fan blades 152 to rotate, so as to suck air from the air inlet 118 of the base 110, and the air flow flows to the noise reduction device 170 after passing through the sound absorption cotton 210, the motor 148 and the fan blades 152, and then is discharged out of the food processor 100 through the air outlet 119. That is to say, after the air inlet 118 enters the second air duct, the noise is reduced by the sound absorbing cotton 210, and then the noise is reduced by the noise reducing device 170, so that the multi-stage noise reduction is realized. The sound absorbing cotton 210 is located on the peripheral side of the noise reducer 170, providing effective structural support for the multi-stage noise reduction process.

Further, as shown in fig. 28, a first opening 116 is provided at the top of the seat body 112, the first opening 116 is communicated with the second air duct, and the first opening 116 is used for communicating with the cup body assembly 140 of the food processor 100; an air inlet 118 and an air outlet 119 are arranged at the bottom of the seat body 112, at least a part of the air inlet 118 is arranged corresponding to the sound-absorbing cotton 210, and at least a part of the air outlet 119 is arranged corresponding to the first air duct 174.

Wherein, through the structure of rationally setting up seat body 112 for seat body 112 is provided with first opening 116, air intake 118 and air outlet 119. Specifically, the top of the seat body 112 is provided with a first opening 116, and the bottom of the seat body 112 is provided with an air inlet 118 and an air outlet 119.

The cup assembly 140 of the food processor 100 is detachably disposed on the top of the base 110, and the first opening 116 is disposed on the top of the seat body 112, so that the air flow entering the second air duct from the air inlet 118 can be ensured to flow from the first opening 116 to the motor 148 of the cup assembly 140, that is, the smoothness of the air flow path is ensured.

In addition, the bottom of the seat body 112 is provided with the air inlet 118 and the air outlet 119, so that the smoothness of air flow is ensured, the air inlet 118 and the air outlet 119 are hidden, the air inlet 118 and the air outlet 119 are prevented from being exposed, and the appearance of the product is improved.

In addition, at least one part of the air inlet 118 is arranged corresponding to the sound absorption cotton 210, so that the air flow entering through the air inlet 118 needs to flow through the sound absorption cotton 210, effective contact between the sound absorption cotton 210 and the air flow is ensured, and the noise reduction effect of the sound absorption cotton 210 is further ensured.

In addition, at least a portion of the air outlet 119 is disposed corresponding to the first air duct 174, so as to ensure that the air flow flows to the air outlet 119 after being subjected to noise reduction processing by the noise reduction device 170, thereby ensuring noise reduction effect of the noise reduction device 170.

Example 7:

as shown in fig. 21 to 27, the third aspect of the present invention provides a food processor 100, including: such as the base 110 of the second aspect embodiment.

The food processor 100 provided by the present invention includes the base 110 according to the embodiment of the second aspect, so that all the advantages of the base 110 are provided, which is not described herein.

As shown in fig. 21, 22 and 24, the food processor 100 further includes: the cup body assembly 140, the cup body assembly 140 and the base 110 are detachably connected.

Wherein, cooking machine 100 still includes cup body assembly 140, cup body assembly 140 and base 110 detachable connections, cup body assembly 140 is used for holding the food material to the function of cooking the food material (for example, smash the food material, heat the food material etc.). The cup assembly 140 is detachably connected to the base 110, the base 110 has a function of supporting and fixing the cup assembly 140, the cup assembly 140 can be assembled with the base 110, and the cup assembly 140 can be separated from the base 110.

Further, as shown in fig. 21, 22 and 24, the cup assembly 140 includes: a cup body 142; a crushing cutter 144 located inside the cup body 142; seat 146 connected to cup 142, seat 146 having a second opening; a motor 148 positioned in the seat 146, the motor 148 including a driving shaft 150, a first end of the driving shaft 150 extending into the cup 142 and connected to the crushing cutter 144; fan blades 152 located in the seat body 146, and the second end of the driving shaft 150 is connected to the fan blades 152; wherein the first opening 116 of the base 110 is communicated with the second opening.

The cup assembly 140 includes a cup 142, a crushing blade 144, a seat 146, a motor 148, and a fan 152. The seat 146 is provided with a second opening, and the second opening is communicated with the first opening 116, that is, the seat 146 is communicated with the second air duct of the base 110.

Specifically, the cup assembly 140 includes a seat 146, a motor 148 and a fan 152 are disposed in the seat 146, and the motor 148 drives the crushing blade 144 to rotate and simultaneously drives the fan 152 to rotate. During operation, the motor 148 drives the fan blades 152 to rotate, so as to suck air from the air inlet 118 of the base 110, the air flow passes through the sound-absorbing cotton 210 and flows from the first opening 116 to the second opening, and after passing through the motor 148 and the fan blades 152, the air flow flows from the second opening to the first opening 116 and flows to the noise reduction device 170, and then is discharged out of the food processor 100 through the air outlet 119. The arrangement can ensure effective contact between the airflow and the motor 148 and the fan blades 152, so as to utilize outside cold air to dissipate heat of the motor 148 and the fan, ensure the working temperature of the motor 148 and provide structural support for prolonging the service life of the motor 148.

It can be understood that the motor 148 rotates at a high speed to generate a rotational power, and the motor 148 generates heat when operating, such that the driving shaft 150 of the motor 148 is connected to the fan 152, and the fan 152 is utilized to dissipate heat from the motor 148. When the motor 148 works and drives the fan blades 152 to rotate, vibration noise and wind resistance turbulent noise are generated, that is, the main noise sources of the food processor 100 include the motor 148 and the fan blades 152. Therefore, the sound absorbing cotton 210 and the noise reducer 170 are used for noise reduction.

Example 8:

as shown in fig. 21 to 27, embodiment 8 provides, on the basis of embodiment 7, a food processor 100 including: such as the base 110 of the second aspect embodiment.

Further, as shown in fig. 21 to fig. 27, the food processor 100 further includes a cover assembly 120, the cover assembly 120 is detachably connected to the base 110, an accommodating cavity 130 is defined between the base 110 and the cover assembly 120, the cup assembly 140 is located in the accommodating cavity 130, and the cup assembly 140 is detachably connected to the base 110.

Wherein, by enclosing the containing cavity 130 between the base 110 and the cover assembly 120, the cup assembly 140 is located in the containing cavity 130, and the base 110 and the cover assembly 120 wrap the cup assembly 140. That is, the base 110 and the lid assembly 120 cooperate to isolate the cup assembly 140 from the environment. Like this, can effectively reduce the outside transmission amount of the produced noise of cooking machine 100 during operation, be favorable to promoting the effect of making an uproar is fallen to the product. In addition, base 110 and cover body assembly 120 still have the effect of preserving heat and insulating heat to the edible material of cup body assembly 140 inside, avoid taking place to scald the condition of user and take place, are favorable to promoting the safety in utilization and the reliability of product.

Specifically, the base 110 is removably connected to the cap assembly 120, and the cup assembly 140 is removably connected to the base 110.

When the food processor 100 is assembled, the cup body assembly 140 is placed on the base 110, and then the cover body assembly 120 covers the outer side of the cup body assembly 140 and is assembled with the base 110.

When the food processor 100 is disassembled, the cover assembly 120 is removed from the base 110, and then the cup body assembly 140 can be separated from the base 110.

Further, there is a gap between the cup assembly 140 and the wall of the receiving chamber 130.

Wherein, through the cooperation structure of reasonable setting cup subassembly 140 with hold chamber 130 for there is the clearance between cup subassembly 140 and the chamber wall that holds chamber 130, also is cup subassembly 140 and the chamber wall phase separation that holds chamber 130. This setting can reduce cooking machine 100 during operation, the outside transmission quantity of the produced noise of cup body component 140 is favorable to promoting the effect of making an uproar of product falling. In addition, the clearance between the cup body assembly 140 and the cavity wall of the containing cavity 130 also has the functions of heat preservation and heat insulation for food materials in the cup body assembly 140, so that the condition that a user is scalded is avoided, and the use safety and the reliability of a product are improved.

Further, as shown in fig. 21, 22 and 24, the cap assembly 120 includes: a cover 122 detachably connected to the base 110, the cover 122 having an opening; and a first sub-cover 220 detachably connected to the outer cover 122, the first sub-cover 220 opening or closing the opening.

Further, as shown in fig. 27, 29 and 30, the first sub-cover 220 is provided with a passage 222 and a first chamber 224, the first sub-cover 220 is further provided with a first air inlet 226 and an air outlet 228, and the passage 222 communicates the first air inlet 226 and the air outlet 228; a communication structure 230 is arranged on the wall surface of the channel 222, and the first chamber 224 is communicated with the communication structure 230; wherein the flow cross-sectional area of the channel 222 is smaller than the flow cross-sectional area of the first chamber 224.

Wherein the first sub-cover 220 is provided with a passage 222 and a first chamber 224, the first sub-cover 220 is further provided with a first air inlet 226 and an air outlet 228, the passage 222 is communicated with the first air inlet 226, and the passage 222 is communicated with the air outlet 228, that is, the passage 222 is communicated with the first air inlet 226 and the air outlet 228. The hot air generated during the operation of the cup assembly 140 can be exhausted out of the first sub-cover 220 through the channel 222, thereby providing structural support for the safety and reliability of the operation of the food processor 100.

In addition, a communication structure 230 is provided on the wall surface of the passage 222, and the first chamber 224 communicates with the communication structure 230. Through reasonable arrangement of the matching structures of the channel 222 and the first chamber 224, the flow cross-sectional area of the channel 222 is smaller than that of the first chamber 224, that is, the channel 222 and the first chamber 224 together form a resonant cavity structure, when sound waves are transmitted to the resonant chamber 182, a part of the sound waves close to the natural frequency of the resonant cavity structure causes resonance of the resonant cavity structure, and in the vibration process, the sound waves in the resonant cavity structure rub against the inner walls of the channel 222 and the first chamber 224 to convert mechanical energy into heat energy, so that sound energy is consumed, and the sound absorption and noise reduction effects can be effectively achieved.

In addition, the flow cross-sectional area of the channel 222 is smaller than that of the first cavity 224, that is, the matching structure of the channel 222 and the first cavity 224 is reasonably arranged, so that the sound wave can be coupled with the channel 222 and the first cavity 224, and the noise reduction effect of the cover body can be ensured.

It can be understood that the sound wave generated by the food processor 100 during operation propagates to the communicating structure 230 through the channel 222, then propagates from the communicating structure 230 to the first cavity 224, enters the first cavity 224, and then propagates to the channel 222 through the communicating structure 230. That is, for the first chamber 224, the inlet and the outlet of the first chamber 224 are the same structure (i.e., the communicating structure 230), and the sound wave is transmitted into the first chamber 224 from the communicating structure 230 and then transmitted out from the communicating structure 230.

This setting makes the lid neither can block the discharge of steam, can reduce the outside transmission volume of the produced noise of cooking machine 100 during operation again, is favorable to promoting cooking machine 100's noise reduction effect, has richened the service function of lid, has promoted the performance and the market competition of product.

Further, the flow cross-sectional area S3 of the communicating structure 230, the volume V3 of the first chamber 224, the length L3 of the channel 222, the sound velocity c3, and the target noise reduction frequency f3 of the food processor 100 satisfy:

when the food processor 100 is in operation, the target noise reduction frequency characteristic is kept unchanged, and the flow cross-sectional area S3 of the communicating structure 230, the volume V3 of the first chamber 224, the length L3 of the passage 222, and the sound velocity c3 all have a correlation with the target noise reduction frequency f3 of the food processor 100. That is, the size of the first sub-cover 220 is adapted to the size of the outer cover 122 and the cup assembly 140 while ensuring the noise reduction effect of the first sub-cover 220.

Further, the number of the first chambers 224 is plural, and the plural first chambers 224 are arranged at intervals along the circumference of the passage 222.

The number of the first chambers 224 is multiple, so that the structure of the multiple first chambers 224 can be set in a targeted noise reduction manner according to the target noise reduction frequency, for example, the first chambers 224 of multiple specifications are set for multiple different frequencies, and for example, the multiple first chambers 224 of the same specification are set for the same frequency, so that broadband sound absorption and noise reduction are facilitated, diversified use requirements of users can be met, and use performance and market competitiveness of products are facilitated to be improved.

In addition, a plurality of first chambers 224 are spaced circumferentially of the channel 222. In this way, the configuration of the channel 222 may be leveraged to provide effective and reliable structural support for the cooperative sizing of the communication structure 230 and the plurality of first chambers 224.

Specifically, any two first chambers 224 of the plurality of first chambers 224 are of different dimensions.

Specifically, the number of the communication structures 230 is plural, and each of the first chambers 224 communicates with at least one of the communication structures 230.

Specifically, the number of passages 222 is plural, and each first chamber 224 is in communication with the communication structure 230 of at least one passage 222.

Further, as shown in fig. 21, 22, 24 and 31, the food processor 100 further includes: a second sub-cap 240 detachably connected to the first sub-cap 220, the second sub-cap 240 being used to open or close the open end of the cup body assembly 140; the second sub-cover 240 is provided with a second air inlet 242, and a second chamber 244 is enclosed between the first sub-cover 220 and the second sub-cover 240; wherein the flow cross-sectional area of the first inlet port 226 and the flow cross-sectional area of the second inlet port 242 are both smaller than the flow cross-sectional area of the second chamber 244.

Wherein, cooking machine 100 still includes: and the second sub-cover 240 is detachably connected with the first sub-cover 220, a second chamber 244 is enclosed between the first sub-cover 220 and the second sub-cover 240, and the second chamber 244 is communicated with the first air inlet 226 and the second air inlet 242. The hot air generated by the operation of the food processor 100 enters the second chamber 244 through the second air inlet 242, flows to the channel 222 through the first air inlet 226, and is exhausted from the channel 222. That is, the hot air flows through the second chamber 244 and then to the channel 222, which provides structural support for the safety and reliability of the operation of the food processor 100.

In addition, by reasonably setting the matching structure of the first air inlet 226, the second air inlet 242 and the second chamber 244, the flow cross-sectional area of the first air inlet 226 and the flow cross-sectional area of the second air inlet 242 are both smaller than the flow cross-sectional area of the second chamber 244, which is equivalent to that sound waves enter the second chamber 244 with a larger volume from an area with a smaller volume (e.g., an area surrounded by the mouth wall of the second air inlet 242), and then are discharged from an area with a smaller volume (e.g., an area surrounded by the mouth wall of the first air inlet 226), so as to realize the adaptation of acoustic impedance, and the sound waves are reflected and interfered at the mouth wall of the first air inlet 226, the cavity wall of the second chamber 244 and the mouth wall of the second air inlet 242, so that sound energy can be consumed, and the sound absorption and noise reduction effects can be effectively achieved.

The second inlet 242, the second chamber 244 and the first inlet 226 cooperate to achieve a first noise reduction of the sound waves, and the channel 222, the communicating structure 230 and the first chamber 224 cooperate to achieve a second noise reduction of the sound waves. That is to say, the sound waves flow through the second sub-cover 240 and the first sub-cover 220, and the second sub-cover 240 and the first sub-cover 220 can perform multi-stage noise reduction on the sound waves, which is beneficial to improving the noise reduction effect of the food processor 100.

Specifically, the distance L4 between the first sub-cover 220 and the second sub-cover 240, the sound velocity c4, and the target noise reduction frequency f4 of the food processor 100 satisfy:

n is a natural number.

When the food processor 100 is in operation, the target noise reduction frequency characteristic is kept unchanged, and the distance L4 and the sound velocity c4 between the first sub-cover 220 and the second sub-cover 240 have a correlation with the target noise reduction frequency f4 of the food processor 100. That is, the sizes of the first sub-cover 220 and the second sub-cover 240 are adapted to the sizes of the outer cover 122 and the cup body assembly 140 of the food processor 100 while the noise reduction effect of the first sub-cover 220 and the second sub-cover 240 is ensured.

Specifically, n includes 0, 1, 2, 3, 4, 5, etc., which are not enumerated herein.

Further, as shown in fig. 29, the first sub-cover 220 includes: a first sub-housing 232, the first sub-housing 232 being provided with a first air inlet 226; the second sub-shell 234 is detachably connected with the first sub-shell 232, the second sub-shell 234 is provided with an air outlet 228, and the first sub-shell 232 and the second sub-shell 234 surround the first cavity 224; wherein one of the first and

second sub-housings

232 and 234 is provided with a channel 222. That is, the first sub-shell 232 and the second sub-shell 234 cooperate to meet the use requirement of forming the first cavity 224, and reduce the investment of the material surrounding the first cavity 224, which is beneficial to reducing the production cost of the product. Since the first sub-shell 232 and the second sub-shell 234 are detachably connected, the interior of the first sub-cover 220 can be easily cleaned, and the sanitation and safety of the cover can be ensured.

Wherein one of the first sub-housing 232 and the second sub-housing 234 is provided with the channel 222, that is, one of the first sub-housing 232 and the second sub-housing 234 is used for supporting and fixing the channel 222, so as to ensure the matching structure of the channel 222 and the first chamber 224, and further ensure the effectiveness and feasibility of the communication structure 230 and the first chamber 224.

Specifically, the communication structure 230 includes at least one of a communication hole and a communication groove.

Specifically, at least a portion of the first air inlet 226 is disposed in correspondence with the air outlet 228.

Further, as shown in fig. 30, the first sub-cover 220 further includes a cover plate 236, the cover plate 236 is located on a side of the first sub-shell 232 facing away from the second sub-shell 234, the cover plate 236 is provided with an avoidance empty space, and the air outlet 228 is disposed corresponding to the avoidance empty space. The cover plate 236 has a decorative function to ensure the aesthetic appearance and smoothness of the cover.

In addition, the cover plate 236 is provided with an avoidance vacancy, the air outlet 228 is arranged corresponding to the avoidance vacancy, and the avoidance vacancy plays a role of avoiding the air outlet 228, so that hot air at the air outlet 228 can be smoothly discharged out of the cover body through the avoidance vacancy.

It is to be understood that avoiding the void includes at least one of avoiding a hole and avoiding a notch.

Further, as shown in fig. 29, a first peripheral edge 238 is provided in the other of the first sub-shell 232 and the second sub-shell 234, and an end of the passage 222 extends into the first peripheral edge 238. When the first sub-shell 232 and the second sub-shell 234 are engaged, the end of the channel 222 extends into the first peripheral edge 238, and the first peripheral edge 238 can limit the movement of the channel 222 to ensure the engagement structure of the first sub-shell 232, the second sub-shell 234 and the channel 222, thereby ensuring the effective engagement of the channel 222 and the first cavity 224. In addition, because the end of the channel 222 extends into the first peripheral edge 238, the sealing performance at the connection between the channel 222 and the peripheral plate 192 can be ensured to limit the flowing path of the air flow, and an effective and reliable structural support is provided for the noise reduction function of the cover body.

Specifically, a first peripheral edge 238 is disposed in the first sub-shell 232, the first peripheral edge 238 is located on the periphery of the first air inlet 226, and the second sub-shell 234 is provided with the channel 222, and the free end of the channel 222 can extend into the first peripheral edge 238.

Specifically, a first peripheral edge 238 is disposed in the second sub-shell 234, the first peripheral edge 238 is located on the peripheral side of the air outlet 228, the first sub-shell 232 is provided with the channel 222, and the free end of the channel 222 can extend into the first peripheral edge 238.

Further, as shown in fig. 29, the food processor 100 further includes a first sealing portion 270 for sealing the connection between the first sub-shell 232 and the second sub-shell 234.

Further, as shown in fig. 31, the outer surface of the second sub-cover 240 is provided with a second peripheral edge 246, the second peripheral edge 246 is located on the peripheral side of the second air inlet 242, a portion of the first sub-cover 220 extends into the second peripheral edge 246, and a portion of the first sub-cover 220 located in the second peripheral edge 246 is provided with the first air inlet 226. This arrangement increases the fitting area and the fitting angle of the joint of the first sub-cover 220 and the second sub-cover 240, and is advantageous to ensure the sealing property of the joint of the first sub-cover 220 and the second sub-cover 240 to define the flowing path of the air flow.

In addition, the portion of the first sub-cover 220 located inside the second peripheral edge 246 is provided with the first air inlet 226, so that the first air inlet 226 and the second air inlet 242 are effectively supported while the sealing performance of the joint of the first sub-cover 220 and the second sub-cover 240 is ensured.

Further, as shown in fig. 22 and 23, the food processor 100 further includes a second sealing portion 250, and the second sealing portion 250 is used for sealing a connection portion of the first sub-cover 220 and the second peripheral edge 246. The arrangement can avoid the situation that the air flow leaks from the joint of the first sub-cover 220 and the second surrounding edge 246, and ensure good sealing performance of the joint of the first sub-cover 220 and the second surrounding edge 246, so as to limit the flow path of the air flow, further ensure effective contact between the second chamber 244 and the first chamber 224 and sound waves, and be beneficial to improving the noise reduction effect. In addition, the second sealing portion 250 can also avoid hard contact between the first sub-cover 220 and the second surrounding edge 246, which is beneficial to reducing the noise reduction effect of the casing 172.

Wherein the second sealing portion 250 includes a sealing ring. A sealing ring is arranged at the joint of the first sub-cover 220 and the second surrounding edge 246. Furthermore, the sealing ring is a rubber piece.

Further, as shown in fig. 22 and 23, the food processor 100 further includes: and a third sealing part 260, wherein the third sealing part 260 is used for sealing the joint of the outer cover 122 and the first and second sub covers 220 and 240.

The food processor 100 further includes a third sealing portion 260, and the third sealing portion 260 is located at the connection position of the outer cover 122 and the first and

second sub-covers

220 and 240 by setting, so that the connection position of the outer cover 122 and the first and

second sub-covers

220 and 240 is sealed by the third sealing portion 260.

This setting can avoid the air current to take place by the condition that the junction of dustcoat 122 and first sub-lid 220 and second sub-lid 240 leaks, guarantees the good leakproofness of the junction of dustcoat 122 and first sub-lid 220 and second sub-lid 240 to this flow path who limits the air current is favorable to promoting cooking machine 100's noise reduction effect.

In addition, the third sealing portion 260 is located at the joint of the outer cover 122 and the first sub-cover 220 and the second sub-cover 240, and can play a role in vibration reduction, so that the outer cover 122 can be prevented from being in hard contact with the first sub-cover 220 and the second sub-cover 240 during the operation of the food processor 100, and the noise reduction effect of the food processor 100 can be further improved.

Specifically, the third sealing portion 260 is a gasket. The joint of the outer cover 122 and the first sub-cover 220 and the second sub-cover 240 is provided with a sealing ring. Furthermore, the sealing ring is a rubber piece.

Specifically, the food processor 100 includes a wall breaking machine, a soymilk maker, a juice extractor, and the like, which are not illustrated herein.

Example 9:

as shown in fig. 21, 22 and 24, the food processor 100 includes a first sub-cover 220, a second sub-cover 240, a housing 122, a cup assembly 140 and a base 110. Wherein the cup assembly 140 is positioned within the outer cover 122. Wherein the first sub-cover 220, the outer cover 122 and the base 110 are integrally formed to enclose the cup assembly 140 generating the sound source.

The outer cover 122 is used for isolating the internal sound source from directly radiating to the outside, and because the sealing cannot be performed when the air is exhausted, the beating noise and the noise in the cup body 142 are reduced while the first sub-cover 220 is added for exhausting the air.

As shown in fig. 21, 22 and 24, a noise reducer 170 is provided in the base 110. The upper portion of noise reducer 170 is in communication with the second opening of body 146 of cup assembly 140. The noise reducer 170 is provided with a first air duct 174, so that sound waves in the motor 148, the fan blades 152 and the outer cover 122 enter the noise reducer 170 through the first air duct 174 as much as possible, and noise is eliminated.

As shown in fig. 1-19, the noise reducer 170 includes a first air duct 174 and a plurality of noise reduction chambers of different sizes.

The plurality of noise reduction cavities includes at least one first noise reduction cavity 178, the first noise reduction cavity 178 including a resonant duct 180 and a resonant cavity 182, and noise at a specific frequency is cancelled using the resonant duct 180 and the resonant cavity 182.

As shown in fig. 11, which is a schematic cross-sectional view of the upper layer of the noise reducer 170; FIG. 12 is a schematic cross-sectional view of an intermediate layer of a noise reducer 170; as shown in fig. 13, the noise reducer 170 is shown in cross-section in the bottom layer. The middle layer cross-sectional view, similar to the upper and lower layer structures, includes a first noise reduction cavity 178.

In addition, the middle layer and the bottom layer also comprise a second noise reduction cavity 184, namely a wavelength tube, the wavelength tubes with different lengths eliminate noise with different frequencies, and the longer the length of the wavelength tube is, the lower the noise elimination frequency is, the larger the cross-sectional area of the wavelength tube is, and the larger the noise elimination quantity is.

The structure design and matching are carried out by utilizing the principle that one wave length tube eliminates one frequency band noise and one resonant cavity eliminates one section of frequency noise.

Specifically, a noise reducer 170 and a sound-absorbing cotton 210 are provided in the base 110. Wherein, sound-absorbing cotton 210 thickness is greater than 10mm.

Specifically, the spacing between the first casing 172 and the second casing 172 of the first sub-cover 220 is greater than or equal to 8mm, such as 9mm, 10mm, 11mm, 12mm, and so on, not to mention here.

Specifically, the flow cross-sectional area of the channel 222 is gradually changed or varied in a direction from the first air inlet 226 to the air outlet 228.

Specifically, the flow cross-sectional shape of the communication structure 230 includes any one of or a combination of: oval, polygonal, and irregular. Wherein, the irregular shape refers to a pattern with irregular shape.

Specifically, the maximum value of the line connecting any two points on the wall of the outlet 228 is 20mm or less, such as 18mm, 16mm, 15mm, 14mm, 13mm, etc., which are not limited herein.

Specifically, the bulk density of the outer cover 122 is greater than 1000 kilograms per cubic meter and the thickness of the outer cover 122 is greater than 3mm. That is, the areal density of the outer cover 122 is required to be greater than 3 kilograms per square meter.

The cup 142 and the components in contact with each other are vibration dampened, as are the components of the housing 122 in contact with each other.

An annular vibration reduction soft rubber (referred to as a first sealing piece) is arranged between the outer cover 122 and the base 110, and the section is L-shaped, so that sealing and vibration reduction can be realized.

The bottom of the cup assembly 140 may be provided with a damping member and/or a large damping member may be provided on the base 110 to provide a damping engagement between the cup 142 and the base 110.

The bottom of the base 110 is provided with an air inlet 118, and the air inlet 118 ensures the outside cold air to enter, so as to realize good heat dissipation. Meanwhile, the air inlet 118 facilitates the sound waves to enter the sound absorption cotton 210 at the bottom and the noise reduction device 170 through the base 110, so as to achieve more effective noise reduction.

Specifically, as shown in fig. 32, as can be seen from the data curve graph of the amount of noise reduction of the food processer (the base of the food processer is not provided with the noise reduction structure) in the related art and the food processer 100 (the base 110 of the food processer 100 is provided with the noise reduction device 170) in the present application, the noise reduction device 170 in the present application has a good noise reduction effect in a wide frequency range, so that the noise reduction effect of the whole machine is improved, and broadband sound absorption and noise reduction are realized.

Specifically, the height of the wave pipe is greater than or equal to 3mm along the height direction of the food processor 100, such as 4mm, 5mm, 6mm, 8mm, etc., which are not listed here.

Specifically, the height of the wave tube is greater than or equal to 3mm along the height direction of the noise reducer 170, such as 4mm, 5mm, 6mm, 8mm, etc., which are not listed here.

Specifically, the height of the resonant cavity 182 along the height direction of the noise reducer 170 is equal to or greater than 3mm, such as 4mm, 5mm, 6mm, 8mm, etc., which are not listed here.

Specifically, the length of the resonant duct 180 is equal to or greater than 2mm, such as 3mm, 4mm, 5mm, 6mm, 8mm, and the like, which are not enumerated herein.

Specifically, the number of the housing bodies 186 is M, N layers of spaces are provided inside the noise reducer 170, and each layer of space includes a plurality of noise reduction cavities, where N = M-1.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present specification, the description of "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a device of making an uproar falls for cooking machine, its characterized in that includes:

the casing, set up a plurality of chambeies of making an uproar that fall in the casing, just the casing still is provided with first wind channel, it has a plurality of intercommunication portions, every to set up on the lateral wall in first wind channel fall the chamber of making an uproar and at least one the intercommunication portion intercommunication.

2. The noise reduction device of claim 1,

the plurality of noise reduction cavities are located on the peripheral side of the first air duct.

3. The noise reduction device according to claim 1 or 2,

the plurality of noise reduction cavities comprise a first noise reduction cavity, the first noise reduction cavity comprises a resonance pipeline and a resonance cavity, and the resonance pipeline is communicated with the resonance cavity and the communication part;

wherein the flow cross-sectional area of the resonance pipeline is smaller than that of the resonance chamber.

4. The noise reduction device of claim 3,

the flow cross-sectional area S1 of the resonance pipeline, the resonance chamberThe volume V1, the length L1 of the resonance pipeline, the sound velocity c1 and the target noise reduction frequency f1 of the food processor satisfy the following conditions:

5. the noise reduction device according to claim 1 or 2,

the noise reduction cavities comprise a second noise reduction cavity which is a wavelength tube, and the wavelength tube is communicated with the communicating part.

6. The noise reduction device of claim 5,

the sound velocity c2, the length L2 of the wave tube and the target noise reduction frequency f2 of the food processor meet the following requirements:

7. the noise reduction device according to claim 1 or 2,

the target noise reduction frequencies corresponding to any two noise reduction cavities in the plurality of noise reduction cavities are different.

8. The noise reduction device according to claim 1 or 2,

the shell comprises a multi-layer shell body, the first air channel comprises a plurality of sub air channels, and each layer of shell body is provided with one sub air channel;

and a plurality of noise reduction cavities are enclosed between any two adjacent layers of the shell bodies.

9. The noise reduction device of claim 8, wherein the housing body comprises:

the partition plate is provided with a through hole, and the sub-air ducts are positioned on the periphery side of the through hole;

the coamings are arranged on the clapboards, in any two adjacent layers of the shell bodies, the coamings of one shell body are abutted against the clapboards of the other shell body, and the clapboards and the coamings surround the noise reduction cavities.

10. The noise reduction device of claim 9,

in any two adjacent layers of the shell bodies, the coaming of one shell body is arranged in a staggered manner with the coaming of the other shell body; and/or

The noise reduction device further comprises a sealing piece, and the sealing piece is used for sealing the joint of any two adjacent layers of shell bodies.

11. The noise reduction device of claim 9,

the partition board is provided with slots, and in any two adjacent layers of the shell bodies, the coaming of one shell body is inserted into the slot of the other shell body.

12. The noise reduction device of claim 8,

two outermost shell bodies in the multilayer shell body are marked as a first shell body and a second shell body, at least one of the first shell body and the second shell body is provided with a guide post, the shell body positioned between the first shell body and the second shell body is provided with a guide hole, and the guide post can be inserted into the guide hole.

13. The noise reduction device according to claim 1 or 2,

the outer surface of the shell is provided with a water receiving groove and a water leakage hole, and the water receiving groove is communicated with the water leakage hole;

wherein, the noise reduction cavity is positioned on one side of the water leakage hole.

14. The noise reduction device of claim 13,

and one side of the shell, which is deviated from the water receiving groove, is provided with a wind guide groove.

15. The utility model provides a base for cooking machine, its characterized in that includes:

a noise reducing device as defined in any one of claims 1 to 14.

16. The base of claim 15, further comprising:

the seat body, this internal second wind channel that is provided with of seat, the seat body still is provided with air intake and air outlet, the second wind channel intercommunication the air intake with the air outlet, the device of making an uproar falls to be located in the second wind channel.

17. The base of claim 16, further comprising:

inhale the sound cotton, be located in the second wind channel, just inhale the sound cotton and be located the week side of making an uproar device falls.

18. The base of claim 17,

a first opening is formed in the top of the seat body, the first opening is communicated with the second air duct, and the first opening is used for being communicated with a cup body assembly of the food processor;

the air inlet and the air outlet are arranged at the bottom of the seat body, at least one part of the air inlet corresponds to the sound-absorbing cotton, and at least one part of the air outlet corresponds to the first air channel.

19. A food processor, comprising:

a base as claimed in any one of claims 15 to 18.

20. The food processor of claim 19, further comprising:

the cup body assembly is detachably connected with the base.

21. The food processor of claim 20, wherein the cup assembly comprises:

a cup body;

the crushing knife is positioned in the cup body;

the seat body is connected with the cup body and is provided with a second opening;

the motor is positioned in the seat body and comprises a driving shaft, and the first end of the driving shaft extends into the cup body and is connected with the crushing knife;

the fan blade is positioned in the seat body, and the second end of the driving shaft is connected with the fan blade;

wherein the first opening of the base communicates with the second opening.