CN108926266B - Amortization lid, bowl cover subassembly and food processor - Google Patents
Amortization lid, bowl cover subassembly and food processor Download PDFInfo
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- CN108926266B CN108926266B CN201710401941.XA CN201710401941A CN108926266B CN 108926266 B CN108926266 B CN 108926266B CN 201710401941 A CN201710401941 A CN 201710401941A CN 108926266 B CN108926266 B CN 108926266B
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- rib
- cover
- passing hole
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- air passing
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
Abstract
The invention discloses a silencing cover, a cup cover assembly and a food processor, wherein the silencing cover is applied to the food processor, is of a plastic structure and is provided with a silencing cavity, and the silencing cover is also provided with an air outlet and an air inlet which are communicated with the silencing cavity; at least one resonant cavity is arranged in the silencing cavity, and the resonant cavity is provided with a through hole communicated with the silencing cavity. According to the technical scheme, the resonant cavity is arranged in the silencing cover, so that the silencing cavity can inhibit noise with specific frequency generated in the working process of the food processor, can also remove gas and water vapor formed in the working process of the food processor, can further dissipate heat of food materials in the food processor, and improves the service performance of the food processor.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a silencing cover, a cup cover assembly applying the silencing cover and a food processor applying the cup cover assembly.
Background
Stirring cup subassembly and frame are split type design among the current food processor, and its motor needs high-speed rotatory to cut the material in order to drive the arbor, and the high-speed rotation of motor makes food processor produce vibrations, and the junction of stirring cup subassembly and frame is easily taken place revealing of sound, makes food processor noise great in the course of the work, often reaches more than 90dB, leads to the fact great influence to the human body sense organ. The conventional food processor does not suppress the noise, and the noise of the conventional food processor is large.
Disclosure of Invention
The invention mainly aims to provide a silencing cover, aiming at reducing the noise in the running process of the existing food processor.
In order to achieve the purpose, the invention provides a silencing cover which is applied to a food processor, wherein the silencing cover is of a plastic structure and is provided with a silencing cavity, and the silencing cover is also provided with an air outlet and an air inlet which are communicated with the silencing cavity;
at least one resonant cavity is arranged in the silencing cavity, and the resonant cavity is provided with a through hole communicated with the silencing cavity.
Preferably, be equipped with annular first fender muscle in the amortization intracavity, the lateral wall of first fender muscle with the inside wall in amortization chamber encloses to close and forms first cavity, the air inlet is located first fender muscle encloses regionally, the gas vent is located in first cavity, first fender muscle is equipped with the intercommunication the air inlet with the first gas pocket of crossing of gas vent, just first gas pocket is just right the gas vent sets up.
Preferably, the upper end surface and the lower end surface of the first blocking rib respectively abut against the top wall and the bottom wall of the sound attenuation cavity.
Preferably, still be equipped with annular second in the first fender muscle encloses the region and keep off the muscle, the second keeps off the muscle and encloses with first fender muscle and close and form the second cavity, the air inlet is located the second keeps off the muscle and encloses the region, the second keeps off the muscle and is equipped with the intercommunication the air inlet with the second of first air passing hole crosses the gas pocket.
Preferably, the upper end surface and the lower end surface of the second blocking rib are respectively abutted to the top wall and the bottom wall of the silencing cavity, and the second air passing hole is arranged right opposite to the first air passing hole.
Preferably, a first baffle is connected between the first blocking rib and the second blocking rib, and the first air passing hole and the second air passing hole are respectively located on two sides of the first baffle.
Preferably, the second keeps off and still is equipped with annular third fender muscle in the muscle encloses the region, the third keeps off the muscle with the second keeps off the muscle and encloses and close and form the third chamber, the air inlet is located the third keeps off the muscle and encloses the region, the third keeps off the muscle and is equipped with the intercommunication the air inlet with the third of gas pocket is crossed to the second crosses the gas pocket.
Preferably, the upper end face and the lower end face of the third baffle rib are respectively abutted to the top wall and the bottom wall of the sound attenuation cavity, and the third air passing hole is arranged right opposite to the second air passing hole.
Preferably, a second baffle is connected between the second blocking rib and the third blocking rib, and the second air passing hole and the third air passing hole are respectively located on two sides of the second baffle.
Preferably, the silencing cover comprises an upper cover and a lower cover, the upper cover and the lower cover to form the silencing cavity, and the air outlet and the air inlet are respectively formed in the upper cover and the lower cover.
Preferably, the first blocking rib, the second blocking rib and the third blocking rib are circular rings or square rings.
The invention also provides a cup lid assembly, which comprises a lid body and the silencing lid, wherein the lid body is provided with feeding holes penetrating through the inner side surface and the outer side surface of the lid body, and at least part of the silencing lid is accommodated in the feeding holes and is connected with the hole walls of the feeding holes in a sealing manner.
The invention further provides a food processor, which comprises a stirring cup assembly and the cup cover assembly, wherein the stirring cup assembly is provided with an accommodating cavity, the cup cover assembly is connected to the stirring cup assembly and covers the accommodating cavity, and the air inlet is communicated with the accommodating cavity.
The silencing cover is applied to the food processor, the stirring cup assembly of the food processor is provided with the containing cavity, the cup cover assembly is connected to the stirring cup assembly and covers the containing cavity, in the working process of the food processor, food materials in the containing cavity generate noise due to beating, and the noise enters the silencing cavity from the air inlet of the silencing cover and is transmitted to the outside from the air outlet. In the process, part of the noise generates resonance in the resonance cavity communicated with the silencing cavity, the resonance cavity has natural frequency, when the noise with various frequencies enters the air inlet, only the noise with the frequency close to the natural frequency of the resonance cavity can be transmitted out from the air outlet, and the noise with the same frequency as the natural frequency of the resonance cavity is restrained and blocked by the resonance cavity, so that the resonance cavity has the noise reduction function, and the noise generated in the use process of the food processor is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a food processor according to an embodiment of the present invention;
FIG. 2 is a bottom, front and top view of the lid assembly of FIG. 1;
FIG. 3 is a cross-sectional view taken along A-A of the top view of FIG. 2;
FIG. 4 is an exploded view of the lid assembly of FIG. 1;
FIG. 5 is an exploded view of the sound attenuating cap of FIG. 1;
FIG. 6 is a top view of the lower cover of FIG. 5;
FIG. 7 is an exploded view of another embodiment of the sound attenuating cover of FIG. 1;
FIG. 8 is a top view of the lower cover of FIG. 7;
FIG. 9 is an exploded view of yet another embodiment of the sound attenuating cover of FIG. 1;
fig. 10 is a top view of the lower cover of fig. 9.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 10, the present invention provides a silencing cover 10 applied to a food processor, wherein the silencing cover 10 is of a plastic structure and is provided with a silencing cavity 15, and the silencing cover 10 is further provided with an air outlet 111 and an air inlet 113 which are communicated with the silencing cavity 15;
at least one resonant cavity 151 is arranged in the silencing cavity 15, and the resonant cavity 151 is provided with a through hole 1510 communicated with the silencing cavity 15.
The silencing cover 10 is applied to a food processor, the stirring cup assembly 300 of the food processor is provided with an accommodating cavity, the cup cover assembly 100 is connected to the stirring cup assembly 300 and covers the accommodating cavity, food materials in the accommodating cavity generate noise due to beating in the working process of the food processor, and the noise enters the silencing cavity 15 through the air inlet 113 of the silencing cover 10 and is then transmitted to the outside through the air outlet 111. In this process, part of the noise resonates in the resonant cavity 151 communicating with the sound-deadening chamber 15, the resonant cavity 151 having a natural frequency, the natural frequency of the resonant cavity 151 being at least one, and in the case of one, fr. When noise of various frequencies enters the air inlet 113, only noise of certain frequencies near the natural frequency of the resonant cavity 151 can be emitted from the air outlet 111, while noise of the same frequency as the natural frequency of the resonant cavity 151 is suppressed, and when f is fr, the part of the noise with the frequency f is blocked by the resonant cavity 151, and the resonant cavity 151 performs a filtering function, and the transmission coefficient of the sound wave with the frequency is 0. Make the food processor who uses this amortization lid 10 can restrain the noise of specific frequency to reduce the noise that the food processor produced in the use.
The water vapor and other gases and heat generated in the containing cavity of the food processor can also enter the silencing cavity 15 inside the silencing cover 10 through the air inlet 113 and then be discharged to the outside through the air outlet 111. Make this bowl cover subassembly 100 not only can be used for falling the noise of food processor, can also be used for discharging the vapor and other gas that the food processor held the intracavity, also can be used to dispel the heat holding intracavity portion, reach the multi-purpose effect of a thing.
The cup cover assembly of the food processor is usually of a plastic structure, and the cup cover assembly and the stirring cup inevitably vibrate in the working process of the food processor, so that the plastic structure has a certain noise reduction effect relative to a metal structure, and similarly, in the embodiment of the invention, the silencing cover 10 is made of plastic, so that the connection between the silencing cover 10 and the cover body 30 can be damped to a certain extent, and the noise generated by vibration between the silencing cover 10 and the cover body is relatively small.
In an embodiment of the present invention, an annular first rib 16 is disposed in the sound-deadening chamber 15, an outer side wall of the first rib 16 and an inner side wall 152 of the sound-deadening chamber 15 enclose to form a first chamber 1511, the air inlet 113 is located in an area enclosed by the first rib 16, the air outlet 111 is located in the first chamber 1511, the first rib 16 is disposed with a first air passing hole 161 for communicating the air inlet 113 and the air outlet 111, and the first air passing hole 161 is disposed opposite to the air outlet 111.
Noise enters the sound-deadening cavity 15 from the air inlet 113 and is concentrated in the area surrounded by the first rib 16, and because the first air passing hole 161 is opposite to the air outlet 111, the noise then enters the air outlet 111 from the first air passing hole 161, in the process, the sound wave part of the noise is lost in the processes of reflection, refraction, diffraction and the like with the first rib 16, the energy loss of the noise is reduced, and therefore the noise transmitted out from the air outlet 111 is reduced.
In one embodiment, the sound-deadening chamber 15 has oppositely disposed bottom and top walls, and an annularly disposed inner side wall 152, the inner side wall 152 and the bottom and top walls together enclosing the sound-deadening chamber 15. The first rib 16 is an annular cylinder formed by connecting flat plates end to end, is located between the bottom wall and the top wall, and has an upper end surface facing the top wall and a lower end surface facing the bottom wall.
Referring to fig. 4, 5 and 6, the upper end surface and the lower end surface of the first rib 16 abut against the top wall and the bottom wall of the sound-deadening chamber 15, respectively, so that the first chamber 1511 forms a sealed chamber, communicating only through the first air passing hole 161 and the air outlet 111. The first venting hole 161 and the first chamber 1511 together form a resonant cavity 151. The noise entering the silencing chamber 15 from the air inlet 113 resonates in the resonant cavity 151 formed by the first chamber 1511 and the first air passing hole 161, so as to suppress the noise with the same frequency as the natural frequency of the resonant cavity 151, thereby reducing the noise during the operation of the food processor.
In an embodiment of the present invention, an annular second rib 17 is further disposed in an area surrounded by the first rib 16, the second rib 17 and the first rib 16 surround to form a second chamber 1512, the air inlet 113 is located in the area surrounded by the second rib 17, and the second rib 17 is provided with a second air passing hole 171 communicating the air inlet 113 and the first air passing hole 161.
Referring to fig. 6, the noise enters the sound-deadening chamber 15 through the air inlet 113 and is concentrated in the area surrounded by the second rib 17, and then the noise enters the first air passing hole 161 through the second air passing hole 171, in the process, the sound wave of the noise is partially lost in the process of reflection, refraction, diffraction and the like with the second rib 17, the energy of the noise is lost, and further, the energy of the noise is further lost in the process of the noise entering the air outlet 111 through the first air passing hole 161, so that the noise transmitted from the air outlet 111 is further reduced.
In one embodiment, the second rib 17 is also an annular cylinder formed by connecting flat plates end to end, and is located between the bottom wall and the top wall of the sound-deadening chamber 15, and has an upper end surface facing the top wall and a lower end surface facing the bottom wall.
In an embodiment of the present invention, the upper end surface and the lower end surface of the second rib 17 respectively abut against the top wall and the bottom wall of the sound-deadening cavity 15, and the second air passing hole 171 is disposed opposite to the first air passing hole 161, so that the second chamber 1512 forms a sealed chamber and is communicated only through the first air passing hole 161 and the second air passing hole 171. The second venting holes 171 and the second chamber 1512 together form a resonant cavity 151.
Since the second air passing hole 171 faces the first air passing hole 161, the noise enters the first air passing hole 161 from the second air passing hole 171, and during the process, the noise resonates in the resonant cavity 151 formed by the second chamber 1512 and the second air passing hole 171, and then the noise enters the exhaust port 111 from the first air passing hole 161, and during the process, the noise resonates in the resonant cavity 151 formed by the first chamber 1511 and the first air passing hole 161.
In this embodiment, the noise is transmitted from the air inlet 113 to the air outlet 111 and resonates with the two resonant cavities 151, so that the noise reduction cover 10 can suppress the noise with the same frequency as the natural frequency of the two resonant cavities 151, and the food processor using the noise reduction cover 10 can suppress the noise with one or two frequencies, thereby further reducing the noise during the operation of the food processor.
Referring to fig. 7 and 8, in an embodiment of the present invention, a first baffle 12 is connected between the first rib 16 and the second rib 17, and the first air passing hole 161 and the second air passing hole 171 are respectively located at two sides of the first baffle 12. Preferably, the first air passing holes 161 and the second air passing holes 171 are both disposed adjacent to the first baffle 12.
Because the first baffle 12 is connected between the first rib 16 and the second rib 17, the sound wave of the noise cannot be directly transmitted to the first air passing hole 161 through the second air passing hole 171, but passes through the second air passing hole 171, then passes through the second chamber 1512, and then reaches the first air passing hole 161. At this time, the second chamber 1512 is not necessarily a sealed chamber, that is, it is not necessary that the upper end surface and the lower end surface of the second stopper rib 17 abut against the top wall and the bottom wall of the sound-deadening chamber 15, respectively. Of course, the second chamber 1512 can also be a sealed chamber. Since the second air passing hole 171 has a narrow space relative to the second chamber 1512, at this time, the second chamber 1512 is formed as an expanding cavity, and noise is transmitted to the first air passing hole 161 through the second air passing hole 171, the volume is compressed and then expanded, the cross section in the noise propagation path changes suddenly, and part of energy is lost in the processes of reflection, refraction, diffraction and scattering of sound waves and obstacles, wherein the reflected sound waves and the original sound waves generate mutual interference and offset under the conditions that the amplitudes are equal and the phases are different by 180 °, so that the noise energy transmitted to the first air passing hole 161 is reduced, and the noise is reduced in the operation process of the food processor applying the noise reduction cover 10.
Further, the noise reaching the first air passing hole 161 also acts on the resonance cavity 151 formed by the first chamber 1511 and the first air passing hole 161 to generate resonance, so as to further suppress the noise, and thus the noise is less during the operation of the food material processing machine using the noise reduction cover 10.
In this embodiment, the noise reduction cover 10 combines the expansion cavity and the resonance cavity 151 to suppress noise together, so that the food processor using the noise reduction cover 10 can reduce noise better during operation.
In an embodiment of the present invention, an annular third rib 18 is further disposed in the area surrounded by the second rib 17, the third rib 18 and the second rib 17 surround to form a third chamber 1513, the air inlet 113 is located in the area surrounded by the third rib 18, and the third rib 18 is provided with a third air passing hole 181 communicating the air inlet 113 and the second air passing hole 171.
Noise enters the sound-deadening cavity 15 from the air inlet 113 and is concentrated in the area surrounded by the third rib 18, then the noise enters the second air passing hole 171 from the third air passing hole 181, in the process, the sound wave part of the noise is lost in the processes of reflection, refraction, diffraction and the like with the third rib 18, the energy of the noise is lost, further, the noise enters the first air passing hole 161 from the second air passing hole 171, and the energy is further lost in the process of entering the air outlet 111 from the first air passing hole 161, so that the noise transmitted from the air outlet 111 is further reduced.
In one embodiment, the third rib 18 is also an annular cylinder formed by connecting flat plates end to end, and is located between the bottom wall and the top wall of the sound-deadening chamber 15, and has an upper end surface facing the top wall and a lower end surface facing the bottom wall.
In an embodiment of the present invention, the upper end surface and the lower end surface of the third rib 18 respectively abut against the top wall and the bottom wall of the sound-deadening cavity 15, and the third air passing hole 181 is disposed opposite to the second air passing hole 171, so that the third chamber 1513 forms a sealed chamber and is communicated with the third air passing hole 181 through the second air passing hole 171. The third venting hole 181 and the third chamber 1513 together form a resonant chamber 151.
Since the third air passing hole 181 faces the second air passing hole 171, the noise enters the second air passing hole 171 through the third air passing hole 181, and in the process, the noise resonates in the resonant cavity 151 formed by the third chamber 1513 and the third air passing hole 181, and then enters the first air passing hole 161 through the second air passing hole 171, in the process, the noise resonates in the resonant cavity 151 formed by the second chamber 1512 and the second air passing hole 171, and then enters the exhaust port 111 through the first air passing hole 161, and in the process, the noise resonates in the resonant cavity 151 formed by the first chamber 1511 and the first air passing hole 161.
In this embodiment, the noise is transmitted from the air inlet 113 to the air outlet 111 to generate resonance in the three resonant cavities 151, so that the noise reduction cover 10 can suppress the noise with the same natural frequency as the three resonant cavities 151, and the food processor using the noise reduction cover 10 can suppress the noise with one, two or three frequencies, thereby further reducing the noise during the operation of the food processor.
Referring to fig. 9 and 10, in an embodiment of the present invention, the second baffle 14 is connected between the second rib 17 and the third rib 18, and the second air passing hole 171 and the third air passing hole 181 are respectively located at two sides of the second baffle 14. Preferably, the second air passing holes 171 and the third air passing holes 181 are disposed adjacent to the second baffle 14.
Because the second baffle 14 is connected between the third rib 18 and the second rib 17, the sound wave of the noise cannot be directly transmitted to the second air passing hole 171 through the third air passing hole 181, but passes through the third air passing hole 181, passes through the third chamber 1513, and then reaches the second air passing hole 171. At this time, the third chamber 1513 is not necessarily a sealed chamber, that is, the upper end surface and the lower end surface of the third barrier rib 18 are not required to abut against the top wall and the bottom wall of the sound-deadening chamber 15, respectively. Of course, the third chamber 1513 may be a sealed chamber. Because the third air passing hole 181 has a narrow space relative to the third chamber 1513, at this time, the third chamber 1513 is formed as an expansion chamber, and the noise is compressed and then expanded in the process of being transmitted to the second air passing hole 171 through the third air passing hole 181, and the cross section in the noise propagation path changes suddenly, and part of the energy is lost in the processes of reflection, refraction, diffraction and scattering of the sound wave and the obstacle, wherein the reflected sound wave and the original sound wave interfere with each other and cancel each other when the amplitude is equal and the phase is different by 180 °, so that the noise energy transmitted to the second air passing hole 171 is reduced, and the noise is reduced in the operation process of the food processor applying the noise reduction cover 10.
Further, the noise passing through the second air passing hole 171 then enters the first air passing hole 161, and in the process, the noise resonates in the resonant cavity 151 formed by the second chamber 1512 and the second air passing hole 171, and the noise enters the exhaust port 111 from the first air passing hole 161, and in the process, the noise resonates in the resonant cavity 151 formed by the first chamber 1511 and the first air passing hole 161. The noise is transmitted to the two resonant cavities 151 by the second air passing hole 171 to generate resonance in the process of the air outlet 111, so that the noise reduction cover 10 can suppress the noise with the same natural frequency as the two resonant cavities 151, and the food processor using the noise reduction cover 10 can suppress the noise with one or two frequencies, thereby further reducing the noise in the operation process of the food processor.
In this embodiment, the silencing cover 10 combines the expansion cavity and the resonant cavity to suppress noise together, so that the food processor using the silencing cover 10 can reduce noise better during operation.
Referring to fig. 7 and 8, in an embodiment of the present invention, a first baffle 12 is connected between the first rib 16 and the second rib 17, the first air passing hole 161 and the second air passing hole 171 are respectively located at two sides of the first baffle 12, a second baffle 14 is connected between the second rib 17 and the third rib 18, and the second air passing hole 171 and the third air passing hole 181 are respectively located at two sides of the second baffle 14. Preferably, the first air passing holes 161 and the second air passing holes 171 are adjacent to the first baffle 12, and the second air passing holes 171 and the third air passing holes 181 are adjacent to the second baffle 14.
In this embodiment, the second chamber 1512 and the third chamber 1513 are both formed as expansion chambers, the first chamber 1511 and the first venting hole 161 form the resonant cavity 151, and in this embodiment, after a certain loss of noise entering from the air inlet 113 occurs in the resonant cavity 151, the noise reduction cover 10 can suppress noise with the same natural frequency as the resonant cavity 151, so that the food processor applying the noise reduction cover 10 can reduce noise better during operation.
Referring to fig. 5, 7 and 9, in the embodiment of the present invention, the silencing cover 10 includes an upper cover 11 and a lower cover 13, the upper cover 11 and the lower cover 13 cover to form the silencing chamber 15, and the air outlet 111 and the air inlet 113 are respectively opened in the upper cover 11 and the lower cover 13. Preferably, the upper cover 11 covers the lower cover 13 to form a sealed sound-deadening chamber 15, that is, the outer edge of the upper cover 11 is connected with the outer edge of the lower cover 13 in a sealing manner along the circumferential direction, and the sound-deadening chamber 15 is communicated with the outside through the air outlet 111 and the air inlet 113. Set up amortization lid 10 to the structure that upper cover and lower cover lid closed mutually, the convenient production and the processing of this amortization lid 10 have simplified the overall structure of the food processor who uses this amortization lid 10.
Fig. 5, 7 and 9, the lower end surface of the first rib 16 is fixed to the lower cover 13, and the upper end surface of the first rib 16 abuts against the upper cover 11 (the abutting structure may be that the upper end surface of the first rib 16 directly abuts against the lower cover 13, or that the upper end surface of the first rib 16 abuts against the lower cover 13 through a gasket), so that the upper end surface and the lower end surface of the first rib 16 and the top wall and the bottom wall of the sound-deadening chamber 15 enclose and form a sealed first chamber 1511. It is understood that the first rib 16 may also be fixed to the upper cover 11, and a lower end surface of the first rib 16 abuts against the lower cover 13 to form the sealed first chamber 1511, so that the first air passing hole 161 and the sealed first chamber 1511 together form a resonant cavity 151.
Referring to fig. 5 and 9, the lower end surface of the second blocking rib 17 is fixed to the lower cover 13, and the upper end surface of the second blocking rib 17 abuts against the upper cover 11 (the abutting structure may be that the upper end surface of the second blocking rib 17 directly abuts against the lower cover 13, or may be that the upper end surface of the second blocking rib 17 abuts against the lower cover 13 through a gasket), so that the upper end surface and the lower end surface of the second blocking rib 17 and the top wall and the bottom wall of the sound attenuation cavity 15 enclose to form a sealed second cavity 1512. It is understood that the second rib 17 may also be fixed to the upper cover 11, and a lower end surface of the second rib 17 abuts against the lower cover 13 to form the sealed second chamber 1512, so that the second air passing hole 171 and the sealed second chamber 1512 together form a resonant cavity 151.
Referring to fig. 5, the lower end surface of the third rib 18 is fixed to the lower cover 13, and the upper end surface of the third rib 18 abuts against the upper cover 11 (the abutting structure may be that the upper end surface of the third rib 18 directly abuts against the lower cover 13, or may be that the upper end surface of the third rib 18 abuts against the lower cover 13 through a gasket), so that the upper end surface and the lower end surface of the third rib 18 and the top wall and the bottom wall of the sound-deadening cavity 15 enclose and form a sealed third cavity 1513. It can be understood that the third blocking rib 18 can also be fixed to the upper cover 11, and the lower end surface of the third blocking rib 18 abuts against the lower cover 13 to form a sealed third chamber 1513, so that the third blocking rib 18 and the sealed third chamber 1513 together form a resonant cavity 151.
Referring to fig. 7, when the second chamber 1512 forms the expansion chamber 1514, the second rib 17 is fixed to the lower cover 13, and a gap or abutment is provided between an upper end surface of the second rib 17 and the upper cover 11. It is understood that the second rib 17 may be fixed to the upper cover 11, and a lower end surface of the second rib 17 may have a gap or abut against the lower cover 13.
Referring to fig. 7 and 9, when the third chamber 1513 forms the expansion chamber 1514, the third rib 18 is fixed to the lower cover 13, and a gap or abutment is provided between the upper end surface of the third rib 18 and the upper cover 11. It is understood that the third rib 18 may be fixed to the upper cover 11, and a lower end surface of the third rib 18 may have a gap or an abutment with the lower cover 13.
In the above embodiment, the first blocking rib 16, the second blocking rib 17 and the third blocking rib 18 are all integrated with the upper cover 11, or the first blocking rib 16, the second blocking rib 17 and the third blocking rib 18 are all integrated with the lower cover 13. The connection between the upper cover 11 and the lower cover 13 may be a threaded connection or a snap connection, which is commonly used by those skilled in the art.
Referring to fig. 4, 5 and 6, in an embodiment of the present invention, the sound-deadening cap 10 has three resonance chambers 151. It is understood that the resonant cavities 151 are not limited to three, and may be fewer or more, each resonant cavity 151 includes a sealed chamber and a through hole communicating the chamber and the sound-deadening chamber 15, and it is within the scope of the present invention to provide more resonant cavities 151 to suppress noise of more frequencies.
The resonant cavity 151 of the present invention is mainly a helmholtz resonant cavity, and the natural frequency fr of the resonant cavity 151 is related to the shape and volume of the sealed chamber and the shape and size of the through hole 1510, so that the required shape and size of the resonant cavity 151 can be obtained through simulation and multiple tests in practical design to suppress noise of a specific frequency.
The base 500 of the food processor is internally provided with a motor (not shown), when the motor runs at a certain rotating speed, the frequency of noise emitted by the motor is a fundamental frequency, the frequency of double frequency is twice of the fundamental frequency, and the frequency of quadruple is four times of the fundamental frequency, in combination with fig. 4, 5 and 6, in an embodiment of the invention, the silencing cover 10 applied to the food processor is provided with three resonant cavities 151, the noise of double frequency and quadruple frequency can be inhibited by utilizing the resonance effect of sound, the double frequency is 422Hz/74.47dB (SPL), and the quadruple frequency is 844Hz/80.36dB (SPL), and the food processor can well inhibit the two noises, so that the noise emitted in the working process of the food processor is reduced.
The resonant cavity 151 adopted in the technical solution of the present invention utilizes the helmholtz resonant cavity principle to attenuate the noise, so that various structural modifications utilizing the helmholtz resonant cavity principle are applicable to the technical solution of the present invention and are within the protection scope of the present invention.
Referring to fig. 7 and 8, in one embodiment of the present invention, the muffler cover 10 combines two expansion chambers into a resonant chamber. Referring to fig. 9 and 10, in an embodiment of the present invention, the sound-damping cover 10 is an expansion chamber combining two resonance chambers 151.
The properties of the dilatation lumen are: the smaller the transmission coefficient of the noise in the process of propagating in the silencing cavity 15, the more the noise can be inhibited, and the transmission coefficient is inversely proportional to the volume change rate of the sound wave in the process of compressing and expanding, therefore, the larger the volume change rate of the sound wave of the noise in the process of compressing and expanding, the better the noise inhibiting effect is. The first chamber 1512 and the second chamber 1512 are both formed as annularly arranged expansion chambers, and the annularly arranged expansion chambers can effectively utilize the space of the silencing cover 10 as much as possible, so that the volumes of the first chamber 1512 and the second chamber 1512 are maximum, and the noise suppression effect is better. Therefore, the noise reduction cover 10 of the technical scheme of the invention can reduce the noise of the food material processing machine in the working process to the maximum extent.
In the embodiment of the present invention, the first rib 16, the second rib 17, and the third rib 18 may be circular rings or square rings. Set first fender muscle 16, second fender muscle 17 and third fender muscle 18 to ring shape or square ring shape, can match food processor's appearance, and reduce its required space of installation. Referring to fig. 4 to 10, in the illustrated embodiment, the first rib 16, the second rib 17, and the third rib 18 are all enclosed to form a circular ring, referring to fig. 3, the air inlet 113 is located at the center of the lower cover 13, and the first rib 16, the second rib 17, and the third rib 18 are all concentrically disposed. Of course, the air inlet 113 may also be located at a non-central position of the lower cover 13, and the first rib 16, the second rib 17, and the third rib 18 may also be arranged non-concentrically, which is selected according to the actual application.
Referring to fig. 3, in the embodiment of the present invention, a side of the lower cap 13 facing away from the upper cap 11 is provided with a spill prevention portion 131 in a protruding manner, and the air inlet 113 penetrates through the spill prevention portion 131.
The anti-overflow portion 131 is for locating the boss that lower cover 13 deviates from upper cover 11 one side, and cavity and amortization chamber 15 are held in the 113 intercommunication of air inlet, and protruding anti-overflow portion 131 of locating lower cover 13 and deviating from upper cover 11 one side can prevent to hold the material of intracavity and spill over in food material reason machine course of operation.
Referring to fig. 2, fig. 3 and fig. 4, the present invention further provides a cup lid assembly 100, where the cup lid assembly 100 includes a lid body 30 and a silencing lid 10, and the specific structure of the silencing lid 10 refers to the above embodiments, and since the silencing lid 10 adopts all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is provided herein. The cover body 30 is provided with a feeding hole 31 penetrating through the inner side surface and the outer side surface thereof, and the silencing cover 10 is at least partially accommodated in the feeding hole 31 and is hermetically connected to the hole wall of the feeding hole 31.
The air inlet 113 and the air outlet 111 communicate with both sides of the cover 30.
Referring to fig. 1, the present invention further provides a food processor, which includes a stirring cup assembly 300 and a cup lid assembly 100, and the specific structure of the cup lid assembly 100 refers to the above embodiments, and since the cup lid assembly 100 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not repeated herein. The stirring cup assembly 300 has a receiving cavity (not shown), the cap assembly 100 is connected to the stirring cup assembly 300 and covers the receiving cavity, and the air inlet 113 is communicated with the receiving cavity.
Food processor still includes frame 500, and stirring cup subassembly 300 is connected in the one end of frame 500, is equipped with the motor in the frame 500, and in the food processor working process, the motor rotates the stirring sword rotation that drives in the stirring cup subassembly 300 to carry out breakage and stirring to the edible material that holds the intracavity. Noise that the motor produced and the noise and the gas that hold the intracavity in the food processor working process all can get into amortization chamber 15 by air inlet 113, and the noise through amortization lid 10 can be weakened, and amortization lid 10 can also be to holding the edible material of intracavity exhaust and dispel the heat. Make food processor not only noise reduction effect good, and exhaust and radiating effect good.
Referring to fig. 3, a sealing ring 20 is arranged between the outer edge of the lower cover 13 of the silencing cover 10 and the wall of the dispensing hole 31, and the lower cover 13 and the cover body 30 are sealed by the sealing ring 20. The sealing ring 20 can have the effects of absorbing shock and reducing noise at the joint of the silencing cover 10 and the cover body 30.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A silencing cover is applied to a food processor and is characterized in that the silencing cover is of a plastic structure and is provided with a silencing cavity, and the silencing cover is also provided with an air outlet and an air inlet which are communicated with the silencing cavity;
at least one resonant cavity is arranged in the silencing cavity, the resonant cavity is provided with a through hole communicated with the silencing cavity, and the resonant cavity has a natural frequency;
an annular first blocking rib is arranged in the silencing cavity, the outer side wall of the first blocking rib and the inner side wall of the silencing cavity are enclosed to form a first cavity, the air inlet is located in the area enclosed by the first blocking rib, the air outlet is located in the first cavity, the first blocking rib is provided with a first air passing hole communicated with the air inlet and the air outlet, and the first air passing hole is arranged right opposite to the air outlet;
the upper end surface and the lower end surface of the first blocking rib are respectively abutted to the top wall and the bottom wall of the silencing cavity, and the first air passing hole and the first cavity form the resonant cavity together.
2. The sound attenuation cover according to claim 1, wherein a second rib is further disposed in the region surrounded by the first rib, the second rib and the first rib enclose a second chamber, the air inlet is disposed in the region surrounded by the second rib, and the second rib is provided with a second air passing hole communicating the air inlet and the first air passing hole.
3. The sound-deadening cap as set forth in claim 2, wherein the upper end surface and the lower end surface of said second rib abut against the top wall and the bottom wall of said sound-deadening chamber, respectively, and said second air passing hole is disposed to face said first air passing hole.
4. The sound attenuation cover according to claim 2, wherein a first baffle is connected between the first rib and the second rib, and the first air passing hole and the second air passing hole are respectively located at two sides of the first baffle.
5. The sound attenuation cover according to claim 2, wherein an annular third rib is further disposed in the region surrounded by the second rib, the third rib and the second rib enclose a third chamber, the air inlet is located in the region surrounded by the third rib, and the third rib is provided with a third air passing hole communicating the air inlet and the second air passing hole.
6. The sound-deadening cap as set forth in claim 5, wherein the upper end surface and the lower end surface of said third rib abut against the top wall and the bottom wall of said sound-deadening chamber, respectively, and said third air passing hole is disposed to face said second air passing hole.
7. The sound-absorbing cap as claimed in claim 5, wherein a second baffle is connected between the second rib and the third rib, and the second air passing hole and the third air passing hole are respectively located at two sides of the second baffle.
8. The sound-muffling cover according to any one of claims 1 to 7, wherein the sound-muffling cover comprises an upper cover and a lower cover, the upper cover and the lower cover are closed to form the sound-muffling chamber, and the air outlet and the air inlet are respectively provided in the upper cover and the lower cover.
9. The sound-deadening cap as claimed in any one of claims 5 to 7, wherein the first rib, the second rib and the third rib have a circular or square ring shape.
10. A lid assembly comprising a lid body provided with a dispensing opening extending through an inner side and an outer side thereof, and a sound attenuating cover as claimed in any one of claims 1 to 9, the sound attenuating cover being at least partially received in the dispensing opening and being sealingly connected to the wall of the dispensing opening.
11. A food processor comprising a blending cup assembly and a cup cover assembly as claimed in claim 10, the blending cup assembly having a receiving cavity, the cup cover assembly being connected to the blending cup assembly and covering the receiving cavity, and the air inlet being in communication with the receiving cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401941.XA CN108926266B (en) | 2017-05-27 | 2017-05-27 | Amortization lid, bowl cover subassembly and food processor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710401941.XA CN108926266B (en) | 2017-05-27 | 2017-05-27 | Amortization lid, bowl cover subassembly and food processor |
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| CN108926266A CN108926266A (en) | 2018-12-04 |
| CN108926266B true CN108926266B (en) | 2021-10-26 |
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| CN201710401941.XA Active CN108926266B (en) | 2017-05-27 | 2017-05-27 | Amortization lid, bowl cover subassembly and food processor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111820779B (en) * | 2019-04-15 | 2023-06-06 | 九阳股份有限公司 | Low-noise food processor |
| CN113243782A (en) * | 2020-03-26 | 2021-08-13 | 九阳股份有限公司 | Food preparation machine with good noise reduction effect |
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| EP0243559A1 (en) * | 1986-04-30 | 1987-11-04 | S.A: André Boet Société Anonyme dite: | Gas flow silencer |
| CN2713138Y (en) * | 2004-06-25 | 2005-07-27 | 王本准 | Engine muffler |
| CN101057763A (en) * | 2007-04-28 | 2007-10-24 | 金日清洁设备(苏州)有限公司 | Vacuum cleaner |
| CN201585875U (en) * | 2010-02-09 | 2010-09-22 | 珠海格力电器股份有限公司 | Steam valve |
| CN203041839U (en) * | 2012-11-26 | 2013-07-10 | 九阳股份有限公司 | Safety pressure cooker |
| CN204813374U (en) * | 2015-07-28 | 2015-12-02 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking utensil |
| CN205072733U (en) * | 2015-10-08 | 2016-03-09 | 袁琪 | Air -out structure of food processor |
| CN205625692U (en) * | 2016-03-07 | 2016-10-12 | 广东美的生活电器制造有限公司 | Electronic cooking machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0243559A1 (en) * | 1986-04-30 | 1987-11-04 | S.A: André Boet Société Anonyme dite: | Gas flow silencer |
| CN2713138Y (en) * | 2004-06-25 | 2005-07-27 | 王本准 | Engine muffler |
| CN101057763A (en) * | 2007-04-28 | 2007-10-24 | 金日清洁设备(苏州)有限公司 | Vacuum cleaner |
| CN201585875U (en) * | 2010-02-09 | 2010-09-22 | 珠海格力电器股份有限公司 | Steam valve |
| CN203041839U (en) * | 2012-11-26 | 2013-07-10 | 九阳股份有限公司 | Safety pressure cooker |
| CN204813374U (en) * | 2015-07-28 | 2015-12-02 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking utensil |
| CN205072733U (en) * | 2015-10-08 | 2016-03-09 | 袁琪 | Air -out structure of food processor |
| CN205625692U (en) * | 2016-03-07 | 2016-10-12 | 广东美的生活电器制造有限公司 | Electronic cooking machine |
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|---|---|
| CN108926266A (en) | 2018-12-04 |
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