CN119453812A - Base, base assembly and food processor - Google Patents
Base, base assembly and food processor Download PDFInfo
- Publication number
- CN119453812A CN119453812A CN202311018991.1A CN202311018991A CN119453812A CN 119453812 A CN119453812 A CN 119453812A CN 202311018991 A CN202311018991 A CN 202311018991A CN 119453812 A CN119453812 A CN 119453812A
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- China
- Prior art keywords
- hole
- section
- cover plate
- spiral
- base
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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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
- A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
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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
- A47J43/08—Driving mechanisms
- A47J43/085—Driving mechanisms for machines with tools driven from the lower side
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to the technical field of household appliances and discloses a base, a base assembly and a cooking machine. The base comprises a shell, a second cover plate and a spiral air duct, wherein the shell is provided with a containing cavity, a first through hole and a vent hole, the second cover plate is connected with the shell, the second cover plate is provided with the spiral air duct, the spiral air duct is provided with an air inlet and an air outlet, the air inlet is communicated with the first through hole, the air outlet is communicated with the vent hole, the spiral air duct is provided with at least one contraction section and one expansion section in the extending direction from the air inlet to the air outlet, and the widths of the contraction section and the expansion section are different. Through setting up the spiral wind channel to including shrink section and expansion section for the sound wave is when through the spiral wind channel, can increase the reflection number of times of sound wave through the multiple collision of the wind channel wall of shrink section and expansion section, the wide band noise of more effectual reduction sound wave, noise reduction total value, and this structure also can not reduce noise reduction effect for a long time use, has promoted user experience greatly.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a base, a base assembly and a cooking machine.
Background
At present, the wall breaking machine, the soymilk machine, the juice extractor and other cooking machines are popular with users. Cooking machine is through the culinary art of blade whipping food realization to food, but blade whipping process can produce very big noise, and drives the motor that the blade whipped can be up to ten thousand revolutions in the operation in-process rotational speed, and the mechanical noise of motor is another main noise source of cooking machine. For a high-speed motor, the effect of optimizing the motor to reduce noise is limited, and the noise value of the whole machine cannot reach an acceptable limit value. And the motor is more in heat dissipation in high-speed operation, a high-speed fan is required to be used for heat dissipation of the motor, and the rotating noise caused by high-speed rotation of the fan is also another main noise source of the food processor.
The utility model discloses a cooking machine exhaust system structure in the prior art, through set up spiral surrounding baffle on the motor cover of motor, spiral surrounding baffle encloses into a spiral wind channel between the cover bottom plate of motor cover and the base shell end, is equipped with the soundproof cotton on the inner wall in spiral wind channel, and when the radiating air flow got into spiral wind channel like this, was inhaled sound by the soundproof cotton and falls the sound, was fallen the protruding muscle of making an uproar by making an uproar and stop, the speed reduction falls the noise in spiral wind channel then, finally reduces wind noise. However, the spiral air duct is additionally provided with the soundproof cotton for soundproof, so that the soundproof cotton is easy to be blocked by an ash layer after long-term use, the noise reduction effect is reduced, and if the soundproof cotton falls off after long-term use, the noise reduction effect is greatly reduced.
Disclosure of Invention
In view of the above, the invention provides a base, a base assembly and a food processor, which are used for solving the problem that a spiral air duct structure arranged on the base is poor in noise reduction effect after long-term use.
In a first aspect, the present invention provides a base comprising:
the shell is provided with an accommodating cavity, a first through hole and a vent hole, the accommodating cavity is suitable for accommodating the motor, the first through hole is communicated with the accommodating cavity, and the vent hole is communicated with the outside;
The second cover plate is connected with the shell, a spiral air duct is arranged on the second cover plate, an air inlet and an air outlet are arranged on the spiral air duct, the air inlet is communicated with the first through hole, and the air outlet is communicated with the vent hole;
The spiral air duct is provided with at least one shrinkage section and one expansion section in the extending direction from the air inlet to the air outlet, and the widths of the shrinkage section and the expansion section are different.
The novel air conditioner has the beneficial effects that the spiral air duct is arranged on the second cover plate of the base and comprises the contraction section and the expansion section in the extending direction from the air inlet to the air outlet, and the width of the contraction section is different from the width of the expansion section, so that sound waves can collide with the air duct wall of the contraction section and the expansion section for multiple times when passing through the spiral air duct, the reflection times of the sound waves are increased, the broadband noise of the sound waves is effectively reduced, the total noise value is reduced, the motor noise transmitted from the vent hole is smaller, the noise reduction effect is not reduced when the novel air conditioner is used for a long time, and the user experience is greatly improved.
In an alternative embodiment, the width of the convergent section is L 1, and the width of the divergent section is L 2, and 1<L 2/L1.ltoreq.3 is satisfied.
The beneficial effects are that the reflection of the sound wave can be well ensured and the noise reduction effect is improved by setting the width of the contraction section and the width of the expansion section to be 1<L 2/L1 -3.
In an alternative embodiment, the width of the constriction satisfies L 1 >5mm.
In an alternative embodiment, a plurality of said constriction sections are provided, and each of said constriction sections has a different width;
and/or the expansion sections are provided in plurality, and the width of each expansion section is different.
The beneficial effects are that through setting the shrink section and the expansion section to a plurality of, and the width of each shrink section is different, the width of each expansion section is different, can the furthest improve the reflection number of times of noise, increase the reflection consumption to the noise, reduce the noise total value.
In an alternative embodiment, the constriction section and the expansion section are arranged close to the air outlet;
And/or the contraction section and the expansion section are arranged in the middle of the spiral air duct.
The air conditioner has the beneficial effects that the contraction section and the expansion section are arranged at the position close to the air outlet or in the middle of the spiral air duct, so that sound waves can be ensured to stay in the spiral air duct after being reflected on the wall surface of the spiral air duct, so that the sound waves are reflected as much as possible and then are transmitted from the air outlet, the sound waves are prevented from entering from the air inlet and then being reflected and then are transmitted from the air inlet, and the noise reduction effect is ensured.
In an optional embodiment, the second cover plate includes a second cover body, the middle part of the second cover body is provided with the air inlet, the spiral air duct is spirally formed from the middle part of the second cover body to the edge, and the air outlet is formed in the outer edge of the second cover body.
The air inlet is formed in the middle of the second cover body, the air outlet is formed in the outer edge of the second cover body, noise is transmitted from the middle to the edge through the spiral air duct, the transmission path of the noise is increased, the noise can be fully reflected in the spiral air duct and transmitted, and the noise reduction effect is improved.
In an alternative embodiment, an included angle between the air inlet direction of the air inlet and the air outlet direction of the air outlet is gamma, and the included angle satisfies 0 ° < gamma is less than or equal to 180 °.
The beneficial effects are that through setting the air inlet direction of the air inlet and the air outlet direction of the air outlet to have an included angle which is more than 0 degrees and less than or equal to 180 degrees, the in-out propagation direction of sound waves can be changed, the noise is better reflected and consumed, and the noise reduction effect is improved.
In an alternative embodiment, the base includes:
The first cover plate is connected with the shell, is arranged between the second cover plate and the shell, and encloses a silencing cavity between the first cover plate and the second cover plate, and the silencing cavity is respectively communicated with the first through hole and the air inlet of the spiral air duct. The motor noise reduction device has the beneficial effects that the first cover plate and the second cover plate are arranged on the base, the first cover plate and the second cover plate enclose the noise reduction cavity, so that the noise of the motor can enter the noise reduction cavity through the first through hole, the noise reduction effect of the cavity type noise reduction structure on the noise source of a specific frequency band is obvious, and especially when the natural frequency of the cavity type noise reduction structure is consistent with the frequency of the noise source peak value of the motor, the noise reduction amplitude of the noise can reach the maximum, so that the motor noise entering the noise reduction cavity, especially the low-frequency noise peak value, can be better filtered, the unfiltered motor noise can enter the spiral air duct on the second cover plate, and the total noise value of the motor is reduced by increasing the reflection times of sound wave propagation through the spiral structure of the spiral air duct, so that the motor noise transmitted from the vent hole is smaller.
In an alternative embodiment, the first cover plate includes:
the first cover body is provided with a second through hole, and the second through hole is respectively communicated with the first through hole and the silencing cavity.
The first cover has the beneficial effects that through the arrangement of the second through hole on the first cover body, noise transmitted through the first through hole can firstly enter the second through hole and then enter the silencing cavity, so that the propagation path of sound waves is prolonged, and the noise reduction effect is improved.
In an alternative embodiment, the aperture of the second through hole is larger than the aperture of the first through hole;
and/or the radial dimension of the silencing cavity is larger than the aperture of the second through hole.
The low-frequency noise wave reflection device has the beneficial effects that the aperture of the second through hole is set to be larger than that of the first through hole, so that when sound waves are transmitted from the first through hole to the second through hole, the low-frequency noise wave can be reflected better through abrupt change of the section size, and the noise reduction effect is improved.
The aperture of the second through hole is set to be larger than the aperture of the first through hole, the radial size of the silencing cavity is larger than the aperture of the second through hole, noise passes through abrupt change of twice cross section sizes when passing through the second through hole and the silencing cavity, low-frequency noise waves are reflected continuously and converted into heat energy finally to be dissipated, and the noise reduction effect is improved. In a second aspect, the invention also provides a base assembly, which comprises the base and a motor, wherein the motor is arranged in a containing cavity of the base.
The base assembly has the advantages that the base assembly comprises the base, so that the base assembly has the same effects as the base, and the details are not repeated here.
In a third aspect, the invention also provides a food processor, which comprises the base assembly.
The food processor has the beneficial effects that the food processor comprises the base assembly, so that the food processor has the same effect as the base assembly, and the description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a base according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second cover plate of the base shown in FIG. 1;
FIG. 3 is a top view of a spiral duct of the base;
FIG. 4 is a cross-sectional view of the base;
FIG. 5 is a schematic view of the structure of the first cover plate of the base;
FIG. 6 is a schematic structural view of the upper shell of the base;
FIG. 7 is a top view of the bottom cover;
Fig. 8 is a top view of the second cover plate assembled with the bottom cover.
Reference numerals illustrate:
1-shell, 101-upper shell, 1011-first shell, 10111-containing cavity, 10112-first through hole, 10113-third through hole, 10114-bottom plate, 10115-side wall, 1012-second shell, 1013-hollow cavity, 102-bottom cover, 1021-air inlet hole and 1022-air outlet hole;
2-a first cover plate, 201-a first cover body, 2011-a second through hole, 202-a silencing cavity, 203-a first extension part and 204-a second extension part;
The air conditioner comprises a first cover plate, a second cover plate, a spiral air duct 301, a shrinkage section 3011, an expansion section 3012, a second cover body 302, an air inlet 303 and an air outlet 304.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiments of the present invention are described below with reference to fig. 1 to 8.
According to the embodiment of the invention, in one aspect, a base is provided, which comprises a shell 1, wherein a containing cavity 10111, a first through hole 10112 and a vent hole are formed in the shell 1, the containing cavity 10111 is suitable for containing a motor, the first through hole 10112 is communicated with the containing cavity 10111, the vent hole is communicated with the outside, a second cover plate 3 is connected with the shell 1, a spiral air duct 301 is arranged on the second cover plate 3, an air inlet 303 and an air outlet 304 are formed in the spiral air duct 301, the air inlet 303 is communicated with the first through hole 10112, the air outlet 304 is communicated with the vent hole, at least one shrinkage section 3011 and one expansion section 3012 are arranged in the extending direction of the spiral air duct 301 from the air inlet 303 to the air outlet 304, and the width of the shrinkage section 3011 and the width of the expansion section 3012 are different.
Through set up spiral wind channel 301 on the second apron 3 of base, and spiral wind channel 301 is in the extending direction from air intake 303 to air outlet 304, set up to including shrink section 3011 and expansion section 3012, and the width of shrink section 3011 is different with the width of expansion section 3012, make the sound wave when through spiral wind channel, can increase the reflection number of times of sound wave through the multiple collision of the wind channel wall of shrink section 3011 and expansion section 3012, more effectual broadband noise of reduction sound wave, the noise total value is reduced, make the motor noise that the follow ventilation hole was transferred less, and this structure also can not reduce the noise reduction effect for long-term use, user experience has been promoted greatly.
Specifically, the contraction section 3011 is provided in plurality, and the width of each contraction section 3011 is different, and the expansion section 3012 is provided in plurality, and the width of each expansion section 3012 is different. By setting the contraction section 3011 and the expansion section 3012 to be plural, and the width of each contraction section 3011 is different, the width of each expansion section 3012 is different, the number of reflection times of noise can be improved to the greatest extent, the reflection consumption of noise is increased, and the total noise value is reduced. As an alternative embodiment, one or two or more of the contraction section 3011 and the expansion section 3012 may be provided, respectively.
As shown in fig. 3, in order to better ensure reflection of sound waves and improve noise reduction effect, the width of the contracted section 3011 in the present embodiment is L 1, the width of the expanded section 3012 is L 2, and 1<L 2/L1 +.3 is satisfied. Specifically, the width of the shrink section 3011 is required to satisfy L 1 >5mm, preventing the shrink section 3011 from being too small to be manufactured. As an alternative embodiment, the width of the contracted section 3011 and the width of the expanded section 3012 may satisfy other dimensional relationships, without being limited thereto.
The specific placement of the contracted section 3011 and the expanded section 3012 should be as far as possible from the air inlet 303, and even if the sound waves are reflected by the walls of the contracted section 3011 and the expanded section 3012, they remain in the spiral duct 301. Specifically, the contracted section 3011 and the expanded section 3012 should be positioned as close as possible to the air outlet 304 so that the last reflection barrier is made before the sound waves exit the spiral duct 301. Of course, in order to prevent sound waves from directly coming out of the air outlet 304, a contraction section 3011 and an expansion section 3012 may also be provided in the middle of the spiral duct 301. As an alternative embodiment, the contraction section 3011 and the expansion section 3012 may be disposed at any position between the air inlet 303 and the air outlet 304 of the spiral duct 301, so long as the sound waves are prevented from directly transmitting from the air inlet 303 and the air outlet 304, and no limitation is made here.
As shown in fig. 2, the second cover plate 3 includes a second cover body 302, an air inlet 303 is formed in the middle of the second cover body 302, a spiral wind plate extends out of the second cover body 302, the spiral wind plate encloses a spiral air duct 301, the spiral air duct 301 is spirally formed from the middle of the second cover body 302 to the edge, and an air outlet 304 is formed in the outer edge of the second cover body 302. Through set up air intake 303 at the middle part of second lid body 302, the outward flange sets up air outlet 304, and the noise gets into spiral wind channel 301 by the middle part of second apron 3, and the edge of follow second apron 3 again after flowing through spiral wind channel 301 is transferred, has increased the propagation path of noise for the noise can fully reflect in spiral wind channel 301 and is transferred again, has improved the noise reduction effect. As an alternative embodiment, the air inlet 303 may be provided at one end of the second cover body 302, and the air outlet 304 may be provided at the other end of the second cover body 302.
As shown in fig. 3, an included angle between the air inlet direction of the air inlet 303 and the air outlet direction of the air outlet 304 is γ, and the included angle satisfies 0 ° < γ is less than or equal to 180 °. Through setting the air inlet direction of the air inlet 303 and the air outlet direction of the air outlet 304 to have an included angle, and the included angle is more than 0 and less than or equal to 180 degrees, the in-out propagation direction of sound waves can be changed, the noise is better reflected and consumed, and the noise reduction effect is improved.
The specific angle design of the included angle between the air inlet direction of the air inlet 303 and the air outlet direction of the air outlet 304 should be as long as possible, so that the spiral duct 301 is as long as possible, and theoretically, the smaller the γ is, the longer the spiral duct is.
In an embodiment, the base comprises a first cover plate 2 connected with the shell 1, wherein the first cover plate 2 is arranged between a second cover plate 3 and the shell 1, a silencing cavity 202 is defined between the first cover plate 2 and the second cover plate 3, and the silencing cavity 202 is communicated with a first through hole 10112 and an air inlet 303 of the spiral air duct 301.
Through setting up first apron 2 and second apron 3 on the base, enclose into amortization chamber 202 between first apron 2 and the second apron 3, make the noise of motor can get into amortization chamber 202 through first through-hole 10112, because cavity formula amortization structure is obvious to the noise reduction effect of the noise source of specific frequency channel, especially when the natural frequency of cavity formula amortization structure is unanimous with the frequency of the noise source peak value of motor, can make noise reduction amplitude reach the biggest, therefore can play better filter effect to the motor noise that gets into in the amortization chamber 202 especially low frequency noise peak value, and to the spiral wind channel 301 on the second apron 3 of motor noise that is not filtered, increase the reflection number of times that the sound wave propagates through the spiral structure of spiral wind channel 301 and reduce the noise total value of motor, thereby make the motor noise outgoing from the ventilation hole less, and this structure also can not reduce noise reduction effect for a long-term use, user experience has been promoted greatly. As shown in fig. 4 and 5, the first cover plate 2 includes a first cover body 201, and a second through hole 2011 is provided on the first cover body 201, and the second through hole 2011 is respectively communicated with the first through hole 10112 and the silencing cavity 202. By providing the second through hole 2011 on the first cover body 201, noise transmitted through the first through hole 10112 can first enter the second through hole 2011 and then enter the silencing cavity 202, so that the propagation path of sound waves is prolonged, and the noise reduction effect is improved.
Wherein, the aperture of the second through hole 2011 is larger than the aperture of the first through hole 10112. By setting the aperture of the second through hole 2011 to be larger than the aperture of the first through hole 10112, when the sound wave propagates from the first through hole 10112 to the second through hole 2011, the low-frequency noise wave can be reflected better through abrupt change of the section size, and the noise reduction effect is improved. As an alternative embodiment, the second through hole 2011 may have the same or smaller pore diameter as the first through hole 10112.
The radial dimension of the sound deadening chamber 202 in the present embodiment is larger than the aperture of the second through hole 2011. Here, the radial dimension of the muffler chamber 202 is the diameter of a circle when the cross section of the muffler chamber 202 is a circle, and the widest dimension of a non-circle when the cross section of the muffler chamber 202 is a non-circle, and the aperture of the second through hole 2011 is the aperture of a circular hole, and the largest dimension of the length and the width of the non-circular hole. By setting the aperture of the second through hole 2011 to be larger than the aperture of the first through hole 10112, the radial size of the silencing cavity 202 is larger than the aperture of the second through hole 2011, so that noise passes through abrupt change of the two cross-sectional sizes when passing through the second through hole 2011 and the silencing cavity 202, low-frequency noise waves are reflected continuously and converted into heat energy finally to be dissipated, and the noise reduction effect is improved.
As an alternative embodiment, the first cover body 201 may not be provided with the second through hole 2011, but the first cover body 201 and the second cover plate 3 directly enclose the silencing cavity 202, and the size of the silencing cavity 202 is larger than the aperture of the first through hole 10112, so that noise entering the silencing cavity 202 through the first through hole 10112 can be reduced through mutation of the primary cross section size.
As shown in fig. 5, the first cover plate 2 includes a first extension portion 203, wherein the first extension portion 203 extends from the first cover body 201 in a direction away from the second cover plate 3, the first extension portion 203 encloses a second through hole 2011, and a second extension portion 204, wherein the second extension portion 204 extends from the first cover body 201 in a direction close to the second cover plate 3, and the second extension portion 204 encloses a silencing cavity 202 with the second cover plate 3. That is, the first extending portion 203 is disposed inside the first cover body 201, the second extending portion 204 is disposed outside the second cover plate 3, and the silencing cavity 202 is a cavity that is widened outwards from the second extending portion 204 with respect to the first extending portion 203. By providing the first cover plate 2 in the form of including the first extension 203 and the second extension 204, the second through hole 2011 and the muffler chamber 202 are facilitated to be formed, and the structure is relatively simple. As an alternative embodiment, the first cover plate 2 may include only the second extension 204, and the second through hole 2011 may be provided in the first cover body 201.
For ease of manufacturing, the first cover body 201, the first extension 203, and the second extension 204 may be integrally formed. As an alternative embodiment, the first cover body 201, the first extension 203, and the second extension 204 may be provided separately.
In one embodiment, the housing 1 includes an upper case 101 connected to a side of the first cover plate 2 remote from the second cover plate 3, and the upper case 101 is provided with a first through hole 10112.
As shown in fig. 6, the upper case 101 includes a first case 1011, a housing chamber 10111 and a first through hole 10112 are provided on the first case 1011, and a second case 1012 connected to the outside of the first case 1011, and a hollow chamber 1013 is provided between the first case 1011 and the second case 1012. Since the noise sound wave generated by the motor is propagated in all directions, in addition to being propagated to the sound deadening chamber 202 through the first through hole 10112, the noise sound wave can be propagated in other directions, such as radial propagation, by arranging the upper case 101 to include the first case 1011 and the second case 1012, the hollow chamber 1013 is formed between the first case 1011 and the second case 1012, so that the motor noise can be propagated in the housing chamber 10111 through the case wall of the first case 1011 into the hollow chamber 1013 between the first case 1011 and the second case 1012, the hollow chamber 1013 can effectively block the radial diffusion of the noise sound wave, which is advantageous for improving the sound quality and reducing the total noise value.
Wherein the first housing 1011 and the second housing 1012 are integrally formed. By integrally providing the first housing 1011 and the second housing 1012, the structure of the upper housing 101 is made relatively simple. As an alternative embodiment, the first housing 1011 and the second housing 1012 may be provided separately.
As shown in fig. 6, the first housing 1011 is provided with third through holes 10113, the third through holes 10113 are provided at intervals outside the first through holes 10112, and the third through holes 10113 communicate with the hollow 1013. Through set up the third through-hole 10113 on first shell 1011, and third through-hole 10113 and cavity 1013 intercommunication, the noise of motor in the holding chamber 10111 can propagate to cavity 1013 through third through-hole 10113 in addition to can propagate through the shell wall of first shell 1011, better reduction motor's noise, simultaneously, because motor high-speed operation can produce a large amount of heats, through setting up third through-hole 10113, also be convenient for dispel the heat to the motor in the holding chamber 10111.
The first shell 1011 includes a bottom plate 10114, a first through hole 10112 and a third through hole 10113 are provided on the bottom plate 10114, and a side wall 10115 is formed by extending the bottom plate 10114 upwards, wherein the bottom plate 10114 and the side wall 10115 enclose a containing cavity 10111. By providing the first housing 1011 in the form including the bottom plate 10114 and the side wall 10115, the first through hole 10112 and the housing cavity 10111 housing the motor can be provided on the first housing 1011 more conveniently, so that the structure of the housing 1 is more compact.
Due to the arrangement of the first extending portion 203 and the second extending portion 204, the second extending portion 204 expands outwards relative to the first extending portion 203, so that a gap exists between the bottom plate 10114 of the first shell 1011 and the first cover body 201, motor noise is transmitted to the gap through the third through hole 10113, and then is transmitted to the hollow cavity 1013 between the first shell 1011 and the second shell 1012 through the gap, and noise of the motor can be reduced well.
In one embodiment, the housing 1 includes a bottom cover 102, the bottom cover 102 is connected to the upper case 101 and is connected to a side of the second cover plate 3 away from the first cover plate 2, and a vent hole is provided in the bottom cover 102.
Wherein, the ventilation holes are arranged in a plurality of ways and are arranged on the bottom cover 102 at intervals. Through setting up a plurality of ventilation hole intervals, conveniently spread noise outside, can also regard as the louvre to use with the ventilation hole, conveniently dispel the heat to the motor.
As shown in fig. 7, a set of ventilation holes communicating with the air outlet 304 of the spiral duct 301 may be provided as an air inlet 1021, two sets of ventilation holes communicating with the hollow cavity 1013 between the first case 1011 and the second case 1012 may be provided as an air outlet 1022, and the spiral wind plate may be provided such that the air inlet 1021 is not communicated with the air outlet 1022. Under the negative pressure generated by the heat dissipation fan blade of the motor, external air enters the spiral air channel 301 and the silencing cavity 202 through the air inlet 1021, then passes through the first through hole 10112, is blown to the motor through the heat dissipation fan blade, and hot air absorbing heat of the motor enters the hollow cavity 1013 between the first shell 1011 and the second shell 1012 through the third through hole 10113, and finally is discharged into the external environment through the air outlet 1022. As an alternative embodiment, the air intake 1021 and the air outlet 1022 may be provided according to actual needs, and the present invention is not limited thereto.
The connection manner between the structures on the base in this embodiment is shown in fig. 4, that is, a first cover plate 2 is connected below an upper case 101 of the housing 1, a second cover plate 3 is connected below the first cover plate 2, and a bottom cover 102 of the housing 1 is connected below the second cover plate 3. Specifically, screw columns can be arranged on the bottom cover 102, matched screw holes are arranged on the bottom plate 10114 of the upper shell 101, the first cover plate 2 and the second cover plate 3, and one screw can penetrate through the screw columns to fasten the upper shell 101, the first cover plate 2, the second cover plate 3 and the bottom cover 102 together, so that the assembly efficiency is greatly improved.
According to another aspect of the present invention, there is further provided a base assembly, including the base and a motor, wherein the motor is disposed in a housing cavity 10111 of the base.
The base assembly comprises the base, so that the base assembly has the same effects as the base, and is not described herein.
The noise reduction principle of the noise reduction cavity 202 is as follows, the upper shell 101 of the base covers the whole motor in the accommodating cavity 10111, noise generated by the motor enters the second through hole 2011 through the first through hole 10112 and then reaches the noise reduction cavity 202 through the second through hole 2011, as the sectional dimensions of the first through hole 10112 to the second through hole 2011 and the second through hole 2011 to the noise reduction cavity 202 are suddenly changed, part of low-frequency noise waves are continuously reflected in the noise reduction cavity 202 and converted into heat energy to be dissipated, and the noise reduction frequency f of the noise reduction cavity 202 can be estimated by the following formula:
Wherein, c 0 is the sound velocity in the air, m/S, S is the sectional area of an inlet and an outlet, m 2, the chamber volume of the V-silencing chamber, m 3, and the chamber depth or height of the h-silencing chamber, m. Wherein, when the sectional areas of the inlet and the outlet are the same, S is the inlet sectional area, when the sectional areas of the inlet and the outlet are different, S is the average value of the inlet and the outlet sectional areas, the inlet of the silencing cavity 202 in the embodiment is the second through hole 2011, and the outlet is the air inlet 303, and the sectional areas of the two are the same.
Noise sound waves with partial low-frequency noise peaks are filtered out from the silencing cavity 202 and enter the spiral air duct 301 below, motor noise is transmitted from inside to outside in the spiral air duct 301, for the sound wave transmission direction, sound waves enter from the air inlet 303 in the middle, are reflected and consumed by the multi-section shrinkage air duct and the expansion air duct in the cavity of the spiral air duct 301, pass through the air outlet 304 at the outer edge and enter the external environment after passing through the air outlet 1022 on the bottom cover 102, and the spiral air duct 301 can effectively reduce broadband noise of a motor noise source and reduce the total noise value through the reflection and consumption of the sound waves.
The noise sound wave generated by the motor is transmitted in all directions, besides the noise sound wave entering the inner cavity of the base, part of the noise sound wave can also be transmitted in the radial direction, and the hollow cavity 1013 between the first shell 1011 and the second shell 1012 can effectively block the radial diffusion of the noise sound wave, thereby being beneficial to improving the tone quality and reducing the total noise value.
According to an embodiment of the invention, on the other hand, there is also provided a food processor, including the base assembly described above.
Because the food processor comprises the base component, the food processor has the same effect as the base component, and the details are not repeated here.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311018991.1A CN119453812A (en) | 2023-08-11 | 2023-08-11 | Base, base assembly and food processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311018991.1A CN119453812A (en) | 2023-08-11 | 2023-08-11 | Base, base assembly and food processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119453812A true CN119453812A (en) | 2025-02-18 |
Family
ID=94584419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311018991.1A Pending CN119453812A (en) | 2023-08-11 | 2023-08-11 | Base, base assembly and food processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119453812A (en) |
-
2023
- 2023-08-11 CN CN202311018991.1A patent/CN119453812A/en active Pending
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