CN208311145U - Silencer, fan assembly and cooker - Google Patents
Silencer, fan assembly and cooker Download PDFInfo
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- CN208311145U CN208311145U CN201820926714.9U CN201820926714U CN208311145U CN 208311145 U CN208311145 U CN 208311145U CN 201820926714 U CN201820926714 U CN 201820926714U CN 208311145 U CN208311145 U CN 208311145U
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- wavelength tube
- noise elimination
- silencer
- wavelength
- shell
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Abstract
The utility model discloses a kind of silencer, fan assembly and cooker, wherein, silencer includes: shell, is formed with air cavity in the shell, the shell, which is additionally provided with, is connected to the inlet and outlet for crossing air cavity, and gas channel was formed between the import and the outlet；And an at least wavelength tube, the wavelength tube is crossed in air cavity set on described, and forms wavelength tube, and a wavelength tube is additionally provided with an opening being connected to the wavelength tube, and the opening is connected to the gas channel of crossing.Technical solutions of the utility model can be improved the noise elimination effect of muffler, reduce the volume and windage of silencer.
Description
Technical field
The utility model relates to field of home appliance technology, in particular to a kind of silencer, fan assembly and cooker.
Background technique
Cooker when in use, generally requires blower rotation blowing to radiate, and generates wind by blower briefing
Machine noise.
Existing fan noise is usually high-frequency noise, and peak value is more, this proposes the noise reduction of noise in a fan duct
Huge challenge.Silencer is to reduce a kind of structure commonly used by noise in a fan duct, however existing silencer such as expansion chambers disappear
The problems such as that there are noise elimination effects is poor for sound device and RESONANT CAVITY MUFFLER etc., and muffler volume is excessive, and windage is big, seriously limits and disappears
Application of the sound device in engineering in practice.
Utility model content
The main purpose of the utility model is to provide a kind of silencer, it is intended to improve the noise elimination effect of muffler, reduction disappears
The volume and windage of sound device.
To achieve the above object, the utility model proposes silencer, comprising:
Shell was formed with air cavity in the shell, and the shell, which is additionally provided with, is connected to the inlet and outlet for crossing air cavity,
Gas channel was formed between the import and the outlet；And
An at least wavelength tube, the wavelength tube are to be provided only with the non-of an opening to gang up pipeline, the opening and the mistake
Gas channel is connected；
The wavelength for defining the target sound waves that one enters wavelength tube is λ, and the duct length of the wavelength tube is L, meet L=λ/
4。
Optionally, defining the width for crossing gas channel is D, and the amendment length of the wavelength tube is La, meets La=L-
4D/3π。
Optionally, the wavelength tube is two or more, and at least there is the wavelength tube of two kinds of length.
Optionally, the two sides for crossing gas channel are equipped with the wavelength tube.
Optionally, the wavelength tube includes an at least rib, the inner wall enclosing of at least one rib and the shell
The wavelength tube is formed, one end of the wavelength tube offers the opening.
Optionally, the wavelength tube is cabinet, which supports the inner wall for being installed on the shell, is formed in the cabinet
For the wavelength tube, one end of the wavelength tube offers the opening.
Optionally, the shell includes noise elimination main body and lid, and the cover cap encloses together in the noise elimination main body and sets shape
Air cavity is crossed at described,
The import is opened in the noise elimination main body and/or lid,
The outlet is opened in the noise elimination main body and/or lid,
The wavelength tube is set to the noise elimination main body and/or lid.
Optionally, the noise elimination main body is detachably connected with the lid；
Alternatively, the noise elimination main body is structure as a whole with the lid.
Optionally, the lid is additionally provided at least one auxiliary noise elimination portion away from a surface of the noise elimination main body, described auxiliary
It helps noise elimination portion to be connected to the gas channel excessively by via hole, is additionally provided with the wavelength tube, the wavelength in the auxiliary noise elimination portion
The opening of pipe is connected to the via hole.
Optionally, the development length of the wavelength tube of the noise elimination main body is greater than the wavelength of the wavelength tube in the auxiliary noise elimination portion
The development length of pipe.
Optionally, multiple wavelength tubes, multiple split rings of multiple wavelength tubes are equipped in the auxiliary noise elimination portion
It arranges around the via hole.
Optionally, the quantity in the auxiliary noise elimination portion is multiple, and multiple auxiliary noise elimination portion stacking arrangements close on described
The auxiliary noise elimination portion of noise elimination main body is connected to the gas channel of crossing, the two adjacent auxiliary noise elimination portion connections.
Optionally, the wavelength tube quantity is multiple, is distributed in the noise elimination main body and the auxiliary noise elimination portion,
The wherein at least value range of the development length of a wavelength tube are as follows: 6mm to 6.5mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 14.9mm to 15.2mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 16.3mm to 17mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 35.4mm to 42.5mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 53.1mm to 60.7mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 77.2mm to 85mm.
The utility model also provides a kind of fan assembly, including blower and silencer, the air outlet of the blower with it is described
The inlet communication of silencer, the silencer, comprising:
Shell was formed with air cavity in the shell, and the shell, which is additionally provided with, is connected to the inlet and outlet for crossing air cavity,
Gas channel was formed between the import and the outlet；And
An at least wavelength tube, the wavelength tube are to be provided only with the non-of an opening to gang up pipeline, the opening and the mistake
Gas channel is connected；
The wavelength for defining the target sound waves that one enters wavelength tube is λ, and the duct length of the wavelength tube is L, meet L=λ/
4。
The utility model also provides a kind of cooker, including fan assembly, and the fan assembly includes blower and noise elimination
Device, the inlet communication of the air outlet of the blower and the silencer, the silencer, comprising:
Shell was formed with air cavity in the shell, and the shell, which is additionally provided with, is connected to the inlet and outlet for crossing air cavity,
Gas channel was formed between the import and the outlet；And
An at least wavelength tube, the wavelength tube are to be provided only with the non-of an opening to gang up pipeline, the opening and the mistake
Gas channel is connected；
The wavelength for defining the target sound waves that one enters wavelength tube is λ, and the duct length of the wavelength tube is L, meet L=λ/
4。
Optionally, the cooker be electric cooker, the electric cooker include shell, set on the shell rice bin and
And cooking pot, the fan assembly are located in shell, and a meter shuttle is additionally provided in the shell, the rice shuttle is located under the rice bin
Side, one end of the rice shuttle is connected to the rice bin, and the other end is connected to blower, at the air intake vent of the blower and the noise elimination
Device connection.
In technical solutions of the utility model, using silencer, air cavity was formed in the shell of the silencer, gas mixing
Noise is entered by the import for crossing air cavity, crosses when crossing gas channel of air cavity by this, noise a part is opened by wavelength tube
Mouth enters in wavelength tube.The wavelength of target sound waves is λ, and the development length of wavelength tube is L, meets λ/4 L=, that is, utilizing four
Arrangement wavelength tube is arranged in the principle of/mono- wavelength tube in suppressor case, achievees the purpose that eliminate specific frequency noise.Wave
Long tube be it is semi-enclosed it is non-gang up pipeline, when sound wave from cross gas channel via opening enter wavelength tube when, sound wave is by wavelength tube
Closed end reflexes to opening and was re-introduced into gas channel, the sound wave of certain frequencies and the sound for crossing same frequency in gas channel
Wave is offset due to opposite in phase, and then reduces the noise noise of the frequency range.The silencer of such setting, noise elimination effect are good.And
And because between import and export cross the not set barriers in gas channel so that the windage of silencer reduces.Compared to expansion
The muffler volume of room silencer, the utility model is also obviously reduced.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model silencer；
Fig. 2 is the decomposition texture schematic diagram of silencer in Fig. 1；
Fig. 3 is the sectional view of an embodiment of silencer in Fig. 1；
Fig. 4 is the structural schematic diagram of the another embodiment of the utility model silencer；
Fig. 5 is the decomposition texture schematic diagram of silencer in Fig. 4；
Fig. 6 is the sectional view of an embodiment of Fig. 4 silencer；
Fig. 7 is the structural schematic diagram of one embodiment of the utility model cooker.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction of institute is only used for explaining under a certain particular pose respectively in the utility model embodiment
Relative positional relationship, motion conditions between component etc., if the particular pose changes, directionality indicates also phase
It changes correspondingly with answering.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution
It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model
It is required that protection scope within.
The utility model proposes a kind of silencers 100.
In the utility model embodiment, which includes:
Shell 10, air cavity 11 was formed in the shell 10, and the shell 10 is additionally provided with the connection wavelength tube 30
Import 111 and outlet 115 formed gas channel 113 between the import 111 and the outlet 115；
Plastics or metal material can be used in the material of the shell 10, and import 111 and outlet 115 can connect with exterior line
It is logical, specifically it can be connected through a screw thread, snap connection or weld.It is additionally provided with sealing device with the junction of exterior line, it is such as close
Seal sponge strip or sealing rubber ring etc..Gas channel 113 of crossing between import 111 and outlet 115 is not provided with barriers.
An at least wavelength tube 30, the wavelength tube 30 are to be provided only with the non-of an opening 33 to gang up pipeline, the opening 33
It is connected with the gas channel 113 of crossing；
The wavelength for defining the target sound waves that one enters wavelength tube 30 is λ, and the development length of the wavelength tube 30 is L, meets L
=λ/4.
The wavelength tube 30 can be structure as a whole with shell 10, concretely integrated injection molding, or be separate structure, such as
The two is connected using connectors such as buckle, bolts.It is, of course, understood that in order to enhance erasure effect, table in shell 10
Face can also coat noise reduction layer, the noise reduction layer, can be damping material, such as silica gel or rubber grain.
In technical solutions of the utility model, using silencer 100, air cavity 11 was formed in the shell 10 of the silencer 100,
Gas mixing noise by this cross air cavity 11 import 111 enter, by this cross air cavity 11 cross gas channel 113 when, noise
A part is entered in wavelength tube 30 by the opening 33 of wavelength tube 30.The wavelength of target sound waves is λ, the development length of wavelength tube
For L, meet λ/4 L=, that is, wavelength tube is arranged in the shell 10 of silencer 100 in the principle using quarter-wave long tube
30, achieve the purpose that eliminate specific frequency noise.Wavelength tube 30 be it is semi-enclosed it is non-gang up pipeline, when sound wave from cross gas channel
113 via opening 33 enter wavelength tube 30 when, sound wave by the closed end of wavelength tube 30 reflex to opening 33 and be re-introduced into
In gas channel 113, the sound wave of certain frequencies is offset with the sound wave for crossing same frequency in gas channel 113 due to opposite in phase, into
And reduce the noise noise of the frequency range.The silencer 100 of such setting, noise elimination effect are good.Also, because in import 111 and going out
The not set barriers in gas channel 113 are crossed between mouth 115, so that the windage of silencer 100 reduces.It eliminates the noise compared to expansion chambers
100 volume of silencer of device, the utility model is also obviously reduced.
Optionally, the cross sectional shape of the wavelength tube 30 is rectangle or square or circle or polygon.
Namely wavelength tube 30 can be rectangular tube, can also be round tube or other irregular pipelines；The arrangement form of wavelength tube 30 can
To be arranged horizontally, the forms such as turning arrangement or screw arrangement.
Referring to figs. 1 to Fig. 3, in the embodiment of the application, the two sides for crossing gas channel 113 are equipped with the wavelength tube
30.By being respectively provided with wavelength tube 30 in the two sides for crossing gas channel 113, so that noise is when crossing gas channel 113 by this, it can be by
Preferably carry out noise reduction process.
Defining the width for crossing gas channel 113 is D, and the amendment length of the wavelength tube 30 is La, meets La=L-4D/
3π。
By above-mentioned formula, the length of wavelength tube can be corrected, so that the length of wavelength tube is arranged and crosses the width in gas channel
Adaptation further promotes the sound-deadening and noise-reducing ability of wavelength tube.
Further, the wavelength tube 30 is two or more, and at least there is the wavelength tube of two kinds of length
30.That is, the development length at least in the presence of the development length of a wavelength tube 30 and another wavelength tube 30
It is different.
By the theory of quarter-wave long tube it is found that when the length of wavelength tube is equal to the wavelength of a quarter, transmitting damage
Mistake reaches maximum value, so this noise elimination structure is called quarter-wave long tube, resonant frequency f=c/4L, wherein c is sound
Speed, L are 30 length of wavelength tube.Development length it can be seen from formula when wavelength tube 30 is bigger, i.e., when L is bigger, resonant frequency
It is lower, low-frequency noise can be eliminated, on the contrary work as wavelength tube more in short-term, it can be used for eliminating high-frequency noise.
Therefore, the development length of wavelength tube 30 is set as different, can reduce the noise of different frequency.The wavelength tube of the application
30 quantity depends on the band number of required control, according to the band limits of required control or the number of peak value adjustment wavelength tube 30
The development length of amount and wavelength tube 30 realizes flexible configuration.
For example, the quantity positioned at the wavelength tube 30 for crossing 113 side of gas channel is extremely in conjunction with referring to fig. 2 and Fig. 3
Three few, the opening 33 of three wavelength tubes 30 is intervally arranged along the gas channel 113 of crossing,
Wherein, the opening 33 of a wavelength tube 30 is closed on the import 111 and is arranged, the opening 33 of a wavelength tube 30
115 setting of outlet is closed on, the opening 33 of a wavelength tube 30 is located at the middle part for crossing gas channel 113.
The wavelength tube 30 so arranged at import 111, is able to achieve noise elimination processing, enhancing at middle part and outlet 115
The noise elimination noise reduction ability of wavelength tube 30.Quantity may be configured as three, five, seven ... etc..
It can also be arranged in the other side for crossing gas channel 113 are as follows: positioned at the wavelength for crossing 113 other side of gas channel
The quantity of pipe 30 is at least two,
Wherein, the opening 33 of a wavelength tube 30 is closed on the import 111 and is arranged, the opening 33 of a wavelength tube 30
Close on 115 setting of outlet.
Further, the quantity positioned at the wavelength tube 30 for crossing 113 other side of gas channel is even number, and described is opened
The arrangement of mouth 33 is symmetrical set.
Even number arrangement, also for the promotion of the comprehensive Noise Reduction ability of cooperation import 111 and outlet 115, such as setting two
A, four, six ... etc..
Referring to Fig. 2 and Fig. 3, when wavelength tube 30 is arranged, wavelength tube can be enclosed by the inner wall of rib and shell 10
30, that is, in one embodiment, the wavelength tube 30 includes an at least rib, at least one rib and the shell 10
Inner wall is enclosed the wavelength tube 30, and one end of the wavelength tube 30 offers the opening 33.
The wavelength tube 30 being enclosed by rib, structure is relatively simple, and integrated molding work can be used in process
Skill.
Certainly, wavelength tube 30 may be arranged as: the wavelength tube 30 is cabinet, which, which supports, is installed on the shell
10 inner wall, the cabinet form the wavelength tube 30, and one end of the wavelength tube 30 offers the opening 33.
That is, wavelength tube 30 itself is a body structure, removable and assembled mode can be used during reprocessing
It is processed.
It is, of course, understood that above are only two kinds of embodiments of the application, other forms can also be used, such as
Using tubular structure or coaming plate structure.
Referring to Fig.1, Fig. 2, Fig. 4 or Fig. 5, in the embodiment of the application, the shell 10 includes 13 He of noise elimination main body
Lid 15, the lid 15 are covered on the noise elimination main body 13, and enclose and set to form the air cavity 11 excessively,
The import 111 is opened in the noise elimination main body 13 and/or lid 15,
The outlet 115 is opened in the noise elimination main body 13 and/or lid 15,
The wavelength tube 30 is set to the noise elimination main body 13 and/or lid 15.
By the setting of noise elimination main body 13 and lid 15, processing silencer 100 can be facilitated.Import 111 is opened in described disappear
Sound main body 13 and/or lid 15 can also individually be opened in lid that is, the import 111 can individually be opened in noise elimination main body 13
15, certainly, a part can also be set in noise elimination main body 13, lid 15 is also provided with a part, and the two, which is enclosed, to be set to form import 111.Together
Sample, outlet 115 is opened in the noise elimination main body 13 and/or lid 15, that is, the outlet 115 can individually be opened in noise elimination master
Body 13 can also individually be opened in lid 15, certainly, a part can also be arranged in noise elimination main body 13, and lid 15 is also provided with a part,
The two, which is enclosed, to be set to form outlet 115.Wavelength tube 30 is set to the noise elimination main body 13 and/or lid 15, that is, the wavelength tube 30 can be single
It solely is connected to noise elimination main body 13, lid 15 can also be connected separately to, certainly, a part, lid can also be set in noise elimination main body 13
15 are also provided with a part, and the two docks to form wavelength tube 30.
Further, the noise elimination main body 13 is detachably connected with the lid 15；The noise elimination main body 13 being detachably connected
With lid 15, it can facilitate and dismounting maintenance and cleaning are carried out to the silencer 100.
Alternatively, the noise elimination main body 13 is structure as a whole with the lid 15.The noise elimination main body 13 and lid of integral structure
15, the processing of the two can be facilitated.It is, of course, understood that when the noise elimination main body 13 and lid 15 are structure as a whole, equally
, wavelength tube 30 is also structure as a whole with the two, facilitates processing.
Referring to fig. 4 to Fig. 6, in the embodiment of the application, the lid 15 deviates from a table of the noise elimination main body 13
Face is additionally provided at least one auxiliary noise elimination portion 50, and the auxiliary noise elimination portion 50 is connected to the gas channel 113 excessively by via hole 51, institute
It states in auxiliary noise elimination portion 50 and is additionally provided with the wavelength tube 30, the opening 33 of the wavelength tube 30 is connected to the via hole 51.
By the setting in the auxiliary noise elimination portion 50, sound wave is transferred to auxiliary noise elimination portion 50 by via hole 51 in noise elimination main body 13
30 position of wavelength tube, utilize wavelength tube 30 closed end sound wave reflection and noise elimination main body 13 in cross gas channel 113 sound
Wave cancels out each other to realize the noise elimination effect of double-layer sound eliminator 100.
Further, the development length of the wavelength tube 30 of the noise elimination main body 13 is greater than the wavelength in the auxiliary noise elimination portion 50
The development length of pipe 30.
Wherein the length of the wavelength tube 30 of the noise elimination main body 13 in double-layer sound eliminator is longer, makes an uproar for low frequency in eliminating the noise
Sound, and assist the length of the wavelength tube 30 of 50 position of noise elimination portion shorter, for eliminating the noise of medium-high frequency, therefore, bilayer is eliminated the noise
The noise reduction effect of more broadband may be implemented in device 100 compared with single layer silencer 100.
Further, multiple wavelength tubes 30 are equipped in the auxiliary noise elimination portion 50, multiple wavelength tubes 30
Multiple openings 33 are arranged around the via hole 51.By the setting of multiple wavelength tubes 30, auxiliary noise elimination portion can be further promoted
50 noise elimination effect further promotes the noise elimination effect of entire silencer 100.
It is, of course, also possible to be arranged are as follows: the quantity in the auxiliary noise elimination portion 50 is multiple, multiple 50 layers of auxiliary noise elimination portions
Folded arrangement, the auxiliary noise elimination portion 50 for closing on the noise elimination main body 13 are connected to the gas channel 113 of crossing, and the two adjacent auxiliary disappear
Part 50 is connected to.
That is, setting multilayer assists noise elimination portion 50, multiple auxiliary noise elimination portions 50 further promote noise reduction sound-deadening effect.
The auxiliary noise elimination portion 50 may include main part 53 and ceiling plate portion 55, and main part 53 can be by detachable with ceiling plate portion 55
Connection.Main part 53 is connected to gas channel 113 is crossed, and the wavelength tube 30 is equipped in main part 53.
In one embodiment, 30 quantity of wavelength tube is multiple, is distributed in the noise elimination main body 13 and the auxiliary disappears
Part 50,
The wherein at least value range of the development length of a wavelength tube are as follows: 6mm to 6.5mm；
The corresponding frequency of noise elimination range of the wavelength tube of the length range are as follows: 13000Hz to 14000Hz.
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 14.9mm to 15.2mm；
The corresponding frequency of noise elimination range of the wavelength tube of the length range are as follows: 5600Hz to 5700Hz.
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 16.3mm to 17mm；
The corresponding frequency of noise elimination range of the wavelength tube of the length range are as follows: 5000Hz to 5200Hz.
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 35.4mm to 42.5mm；
The corresponding frequency of noise elimination range of the wavelength tube of the length range are as follows: 2000Hz to 2400Hz.
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 53.1mm to 60.7mm；
The corresponding frequency of noise elimination range of the wavelength tube of the length range are as follows: 1400Hz to 1600Hz.
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 77.2mm to 85mm.
The corresponding frequency of noise elimination range of the wavelength tube of the length range are as follows: 1000Hz to 1100Hz.
By the setting and combination of the wavelength tube 30 of above-mentioned length range, can effectively eliminate exhausted big in existing noise
The noise of most frequencies, and then promote the whole noise dampening efficiency of silencer 100.
In conjunction with referring to Fig. 7, the utility model also provides a kind of fan assembly, which includes blower 240 and eliminate the noise
Device 100, the specific structure of the silencer 100 is referring to above-described embodiment, since this fan assembly uses above-mentioned all embodiments
Whole technical solutions, therefore at least with above-described embodiment technical solution brought by all beneficial effects, herein no longer
It repeats one by one.Wherein, the blower is connected to the silencer 100.In this way, the silencer 100 is connected to the pipeline of blower 240
In, and then reduce noise.
The utility model also proposes a kind of cooker, which includes fan assembly, and fan assembly includes eliminating the noise
Device 100, the specific structure of the silencer 100 is referring to above-described embodiment, since this fan assembly uses above-mentioned all embodiments
Whole technical solutions, therefore at least with above-described embodiment technical solution brought by all beneficial effects, herein no longer
It repeats one by one.
The cooker can be electric cooker, cooking machine, soy bean milk making machine, blender, wall-breaking machine etc..
Referring to Fig. 7, in one embodiment, the cooker 200 is electric cooker, and the electric cooker includes shell 210, sets
With on the shell 210 rice bin 220 and with cooking pot 230, the fan assembly is located in shell 210, in the shell 210
It is additionally provided with a meter shuttle, the rice shuttle is located at the lower section of the rice bin 220, and one end of the rice shuttle is connected to the rice bin 220, another
End is connected to blower 240, is connected at the air intake vent of the blower 240 with the silencer 100.
When in use, shell 210 forms air port 250, and outside air enters after eliminating the noise from air port 250 via silencer 100
Into blower 240, blower 240 blows for the rice fallen into meter shuttle in rice bin 220 to be delivered in cooking pot 230 and cook.Such as
This can effectively reduce the operation noise for reducing electric cooker by the setting of silencer 100.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (16)
1. a kind of silencer characterized by comprising
Shell was formed with air cavity in the shell, and the shell, which is additionally provided with, is connected to the inlet and outlet for crossing air cavity, described
Gas channel was formed between import and the outlet；And
An at least wavelength tube, the wavelength tube are to be provided only with the non-of an opening to gang up pipeline, and the opening is led to the gas of crossing
Road is connected；
The wavelength for defining the target sound waves that one enters wavelength tube is λ, and the development length of the wavelength tube is L, meets λ/4 L=.
2. silencer as described in claim 1, which is characterized in that defining the width for crossing gas channel is D, the wavelength tube
Amendment length be La, meet La=L-4D/3 π.
3. silencer as described in claim 1, which is characterized in that the wavelength tube is two or more, and is at least deposited
In the wavelength tube of two kinds of length.
4. silencer as described in claim 1, which is characterized in that the two sides for crossing gas channel are equipped with the wavelength tube.
5. silencer as described in claim 1, which is characterized in that the wavelength tube includes an at least rib, at least described in one
The inner wall of rib and the shell is enclosed the wavelength tube, and one end of the wavelength tube offers the opening.
6. silencer as described in claim 1, which is characterized in that the wavelength tube is cabinet, which, which supports, is installed on institute
The inner wall of shell is stated, which is formed as the wavelength tube, and one end of the wavelength tube offers the opening.
7. the silencer as described in any one of claim 1 to 6, which is characterized in that the shell include noise elimination main body and
Lid, the cover cap enclose together in the noise elimination main body and set to form the air cavity excessively,
The import is opened in the noise elimination main body and/or lid,
The outlet is opened in the noise elimination main body and/or lid,
The wavelength tube is set to the noise elimination main body and/or lid.
8. silencer as claimed in claim 7, which is characterized in that the noise elimination main body is detachably connected with the lid；
Alternatively, the noise elimination main body is structure as a whole with the lid.
9. silencer as claimed in claim 7, which is characterized in that the lid is also set away from a surface of the noise elimination main body
There is at least one auxiliary noise elimination portion, the auxiliary noise elimination portion is connected to the gas channel excessively by via hole, in the auxiliary noise elimination portion
It is additionally provided with the wavelength tube, the opening of the wavelength tube is connected to the via hole.
10. silencer as claimed in claim 9, which is characterized in that the development length of the wavelength tube of the noise elimination main body is greater than
The development length of the wavelength tube in the auxiliary noise elimination portion.
11. silencer as claimed in claim 9, which is characterized in that multiple wavelength tubes are equipped in the auxiliary noise elimination portion,
Multiple split rings of multiple wavelength tubes are arranged around the via hole.
12. silencer as claimed in claim 9, which is characterized in that the quantity in the auxiliary noise elimination portion be it is multiple, it is multiple described
The stacking arrangement of noise elimination portion is assisted, the auxiliary noise elimination portion for closing on the noise elimination main body is connected to the gas channel of crossing, and two is adjacent described
Assist the connection of noise elimination portion.
13. silencer as claimed in claim 9, which is characterized in that the wavelength tube quantity be it is multiple, be distributed in the noise elimination
Main body and the auxiliary noise elimination portion,
The wherein at least value range of the development length of a wavelength tube are as follows: 6mm to 6.5mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 14.9mm to 15.2mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 16.3mm to 17mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 35.4mm to 42.5mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 53.1mm to 60.7mm；
And/or the value range of the development length of a wherein at least wavelength tube are as follows: 77.2mm to 85mm.
14. a kind of fan assembly, which is characterized in that the silencer including blower and as described in claim 1 to 13, the blower
It is connected to the silencer.
15. a kind of cooker, which is characterized in that including fan assembly as claimed in claim 14.
16. cooker as claimed in claim 15, which is characterized in that the cooker is electric cooker, the electric cooker
Including shell, the rice bin on the shell and cooking pot, the fan assembly is located in shell, is additionally provided in the shell
Rice shuttle, the rice shuttle are located at the lower section of the rice bin, and one end of the rice shuttle is connected to the rice bin, and the other end is connected to wind
Machine is connected at the air intake vent of the blower with the silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926714.9U CN208311145U (en) | 2018-06-13 | 2018-06-13 | Silencer, fan assembly and cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926714.9U CN208311145U (en) | 2018-06-13 | 2018-06-13 | Silencer, fan assembly and cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311145U true CN208311145U (en) | 2019-01-01 |
Family
ID=64707457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820926714.9U Active CN208311145U (en) | 2018-06-13 | 2018-06-13 | Silencer, fan assembly and cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311145U (en) |
-
2018
- 2018-06-13 CN CN201820926714.9U patent/CN208311145U/en active Active
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