CN108869407A - A kind of air exhaust muffler device and household appliance - Google Patents
A kind of air exhaust muffler device and household appliance Download PDFInfo
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- CN108869407A CN108869407A CN201810636211.2A CN201810636211A CN108869407A CN 108869407 A CN108869407 A CN 108869407A CN 201810636211 A CN201810636211 A CN 201810636211A CN 108869407 A CN108869407 A CN 108869407A
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- spiral case
- air exhaust
- exhaust muffler
- inlet pressure
- muffler device
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- 238000009434 installation Methods 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 6
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- 230000003584 silencer Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 235000010469 Glycine max Nutrition 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 229920000742 Cotton Polymers 0.000 abstract description 10
- 230000009467 reduction Effects 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000003670 easy-to-clean Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
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- 230000037237 body shape Effects 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The embodiment of the invention discloses a kind of air exhaust muffler device and household appliance, the air exhaust muffler device is applied in the household appliance with blower, including spiral case main body and spiral case lid.Wherein, the spiral case main body includes the wherein end plates of one end and the spiral case inlet pressure with the end plates vertical connection, circular open is provided on the end plates as volute air-inlet mouth, the spiral case inlet pressure surrounds a notch and is set as spiral case exhaust outlet, the end plates are provided with deflector in the position of the spiral case exhaust outlet, are both provided with micropunch on the spiral case inlet pressure and the deflector.Spiral case lid is located at the other end and spiral case inlet pressure vertical connection of spiral case main body, and the spiral case lid and spiral case main body constitute flow-guiding structure.The air exhaust muffler device of the embodiment of the present invention is avoided using problem of temperature rise and security risk brought by the structure for pasting acoustical cotton inside spiral case inlet pressure, has good noise reduction effect and heat dissipation effect, and have compact-sized, easy to clean feature.
Description
Technical field
The present invention relates to a kind of living electric apparatus technical field more particularly to a kind of air exhaust muffler device and household appliances.
Background technique
Exhaust apparatus in the household appliance of the prior art generallys use exhaust volute and radiates, due to household appliance
Quickly, the noise for causing its exhaust apparatus is big for motor speed.In order to reduce the noise of exhaust apparatus, relatively conventional mode is
Acoustical cotton is pasted on the inside of spiral case inlet pressure.Since acoustical cotton is a kind of combustible material, and built-in acoustical cotton blocks in spiral case
The thermally conductive air-flow of blower discharge, therefore this structure will cause the problem of temperature rise of household electrical appliances, have some potential safety problems.
Summary of the invention
In order to solve the above technical problems, an embodiment of the present invention is intended to provide a kind of air exhaust muffler device and household appliance, tool
There are good noise reduction effect and heat dissipation effect, and has compact-sized, easy to clean feature.
What the technical solution of the embodiment of the present invention was realized in：
It is applied in the household appliance with blower in a first aspect, the embodiment of the present invention provides a kind of air exhaust muffler device,
The air exhaust muffler device includes：Spiral case main body and spiral case lid；Wherein, the spiral case main body include wherein the end plates of one end and
With the spiral case inlet pressure of the end plates vertical connection；Circular open is provided on the end plates as volute air-inlet mouth；It is described
Spiral case inlet pressure surrounds a notch and is set as spiral case exhaust outlet；The end plates are provided in the position of the spiral case exhaust outlet and lead
Flowing plate；Micropunch is both provided on the spiral case inlet pressure and the deflector.The spiral case lid is located at the another of the spiral case main body
One end and the spiral case inlet pressure vertical connection, the spiral case lid and the spiral case main body constitute flow-guiding structure.
Optionally, the aperture of the micropunch and punching rate are selected according to noise frequency.
Optionally, the aperture of the micropunch is 0.1mm~1mm, punching rate 5%.
Optionally, be additionally provided with installation groove body on the outside of the spiral case main body on the spiral case end plates, the spiral case into
Port is located at the bottom of the installation groove body.
Optionally, the quantity of the deflector is three, form and position distribution by the flow-guiding structure flow-like
Condition determines.
Optionally, the joint surface of the spiral case lid and the spiral case inlet pressure is provided with and the consistent L-type of the spiral case inlet pressure
Groove body.
Optionally, the spiral case inlet pressure is combined with the spiral case lid by the L-type groove body.
Optionally, the spiral case, which is covered, is provided with slope in the spiral case exhaust outlet.
Second aspect, the embodiment of the invention provides a kind of household appliance with blower, the household appliance includes electricity
Machine, fan, fixed frame, buckle and support base and the described in any item air exhaust muffler devices of first aspect；Wherein, when the wind
When fan reaches the fixation position of the fan, the installation groove body in the fixed frame and the air exhaust muffler device constitutes fan
Fixed structure.
Optionally, the fixation position of the fan is that the fan with spiral case exhaust outlet described in first aspect is maintained at same
Horizontal plane.
Optionally, the fixed structure of the fan is the fixed frame and the installation groove body phase in the exhausting silencer structure
It hands over and fixes, the fixed frame and motor are connected by buckle, and the motor, which is provided with the support base and is embedded in described be vented, to disappear
In the installation groove body of acoustic form.
Optionally, the household appliance includes：Wall-breaking machine, blender, juice extractor or soy bean milk making machine.
The embodiment of the invention provides a kind of air exhaust muffler device and household appliances, by using in air exhaust muffler device
The design of microperforated panel noise-cancelling theory effectively reduces noise, and the flow-guiding structure of spiral case is optimized, and improves blower
The efficiency for exporting hot-fluid places the scheme of acoustical cotton due to avoiding traditional technology on the inside of spiral case, thus brings household electrical appliances and set
The promotion of standby security performance.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of air exhaust muffler device provided in an embodiment of the present invention；
Fig. 2 is a kind of inversion schematic diagram of spiral case main body provided in an embodiment of the present invention；
Fig. 3 is a kind of blower fan system CFD simulation analysis figure provided in an embodiment of the present invention；
Fig. 4 is a kind of spiral case lid schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of sectional view of the spiral case inlet pressure provided in an embodiment of the present invention in conjunction with L-type groove body；
Fig. 6 is a kind of sectional view of the spiral case inlet pressure provided in an embodiment of the present invention in conjunction with U-type groove body；
Fig. 7 is a kind of blower fan system schematic diagram provided in an embodiment of the present invention；
Fig. 8 is a kind of blower fan system cross-sectional view provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment one
The present embodiment provides a kind of air exhaust muffler device, Fig. 1 is a kind of air exhaust muffler device provided in an embodiment of the present invention
Schematic diagram, as shown in Figure 1, the air exhaust muffler device includes spiral case main body 10 and spiral case lid 20.Wherein, spiral case main body 10 is wrapped
Include the end plates 11 of wherein one end and the spiral case inlet pressure 12 with the end plates vertical connection.A circle is provided on end plates 11
Opening is used as volute air-inlet mouth 13.
Blower fan is passed through specifically, the diameter of volute air-inlet mouth 13 is greater than blower fan diameter.
The internal structure of the spiral case main body for ease of description, Fig. 2 are that the embodiment of the invention provides a kind of spiral case masters
The inversion schematic diagram of body.As shown in Fig. 2, spiral case inlet pressure 12, which surrounds a notch, is set as spiral case exhaust outlet 14, it is therefore an objective to be discharged
The air-flow that fan generates.It can be seen that end plates 11 are provided with deflector 15 in the position of spiral case exhaust outlet 14, spiral case is improved
The water conservancy diversion efficiency of exhaust outlet 14.
The present embodiment is both provided with micropunch 16 on spiral case inlet pressure 12 and deflector 15, makes spiral case inlet pressure 12 and deflector
15 become microperforated panel silencer, and reduction flows through spiral case inlet pressure and the wind of deflector is made an uproar.
In the present embodiment, spiral case lid 20 is located at the other end and 12 vertical connection of spiral case inlet pressure of spiral case main body 10, spiral case
Lid 20 and spiral case main body 10 constitute flow-guiding structure.
As can be seen that the air exhaust muffler device of the present embodiment has following characteristics compared with traditional volute structure：One, snail
Shell mould line 12 only has one layer as the siding of spiral case, and the structure compared to traditional spiral case bilayer siding can be in exhaust apparatus body
Product possesses bigger cavity space in the case where remaining unchanged.Two, spiral case lid 20 and spiral case main body 10 constitute flow-guiding structure, institute
The end face that spiral case lid 20 is stated as spiral case does not have aperture, constitutes the flow-guiding structure and there was only volute air-inlet mouth and spiral case exhaust outlet
Single-input single-output flow-guiding structure, and conventional volute is both ends pass-through type structure.It can be seen that the exhausting silencer of the present embodiment fills
The flow-guiding structure set is big compared with the wind pressure that conventional volute its fan generates, and flow conductivity is strong.
It is made an uproar in one possible implementation in order to effectively eliminate based on the aforementioned air exhaust muffler device for Fig. 1
The aperture of micropunch 16 and punching rate are selected according to noise frequency on sound, spiral case inlet pressure 12 and deflector 15.
In this implementation, the micropunch 16 is designed according to microperforated panel noise-cancelling theory.The microperforated panel
Noise-cancelling theory is when sound wave injects microperforated panel, and air rubs in aperture and produces acoustic resistance, and sound energy consumption disappears to reach
The purpose of sound.Since microperforated panel structure is resonance absorber, sound absorption effect reaches maximum value when reaching resonant frequency, so
The size of micropunch, percent opening, distribution form regard specific frequency of noise elimination section and determine.
Preferably due to which this implementation is applied in the small household appliances with blower, motor speed generally exists
Between 10000r/min~40000r/min, be computed, in this implementation, micropunch aperture select 0.1mm~1mm for
It is good.
Furthermore it is preferred that in this implementation, since the size of household electrical appliances defines spiral case main body 10 in this implementation
Size, it is contemplated that manufacture the difficulty of processing, punching rate in this implementation selection 5% is preferred.
After tested, it can reduce fan noise 1 by using the design of the micropunch noise-cancelling theory in this implementation
~2dB has preferable noise reduction effect, and its erasure effect is negatively correlated in wind speed, i.e., noise reduction effect can become larger with wind speed
And it is deteriorated.
It should be noted that in this implementation perforated microstructure absorb be carry on the back chamber in distinguished and admirable noise, and by
The first back chamber that spiral case inlet pressure 12 and end plates and spiral case lid 20 are constituted is far longer than second constituted between each deflector 15
Chamber is carried on the back, it follows that the micropunch noise elimination structure of spiral case inlet pressure 12 plays main noise elimination, deflector 15 in this implementation
Guide functions are mainly played in this implementation, only need to have certain noise elimination effect.
It, can be in spiral case inlet pressure 12 in other implementations in order to further enhance air exhaust muffler device noise reduction effect
The frequency range eliminated the noise of outside arrangement acoustical cotton etc. sound-absorbing materials increase.And because acoustical cotton is arranged in outside,
Air duct water conservancy diversion and heat dissipation will not be impacted.It can be seen that avoid will be in spiral case for the air exhaust muffler device of this implementation
The scheme of disposed inboard acoustical cotton, and noise can be effectively reduced, it is good heat dissipation effect, highly-safe.
Since microperforated panel is the sound absorbing element of high acoustic resistance, quality in a low voice, metal material design is usually selected, and this realization
The technical field of mode is for small household appliances, so the material of spiral case inlet pressure 12 and deflector 15 is selected in this implementation
Stainless steel is selected to be preferred.
Optionally, in other implementations, spiral case inlet pressure 12 and 15 material of deflector are also an option that steel and alloy etc.
Other metals.
It can be seen that because it is all gold that the spiral case body interior structure in this implementation, which includes spiral case inlet pressure and deflector,
Belong to material, so having the characteristics that resistant to high temperature.And because this implementation is in spiral case inlet pressure disposed inboard acoustical cotton, because
This also has the characteristics that easy to clean.
Based on the aforementioned air exhaust muffler device for Fig. 1 embodiment, in another implementation, on the outside of spiral case main body
Installation groove body 17 is additionally provided on the spiral case end plates, the installation groove body is for the exhausting silencer in the embodiment of the present invention
Fixed installation between device and the blower fan system of household appliance.
Based on the aforementioned air exhaust muffler device for Fig. 1 embodiment, in another implementation, the quantity of deflector is
Three, form and position distribution are determined by the fluid situation of the flow-guiding structure.In order to determine the morphologic localization of deflector, need
Obtain the fluid state in spiral case back chamber.Fig. 3 is a kind of blower fan system CFD provided in an embodiment of the present invention
(Computational Fluid Dynamics, computational fluid dynamics) simulation analysis figure, in this implementation, Ke Yitong
Cross CFD simulation analysis figure as shown in Figure 3 obtain the velocity field of air-flow in original spiral case back chamber, temperature field, pressure field and other
The visualization animation process of parameter on computers, the position distribution and shape of deflector are determined according to CFD analysis of simulation result.
It should be noted that the Pressure in Fig. 3 refers to pressure herein, original spiral case herein refers to based in this implementation
Spiral case without containing deflector.In this implementation, the deflector 15 being arranged through CFD simulation analysis, which can play, is effectively led
Stream effect, and existing vortex at fan outlet is eliminated, to reduce turbulence noise.
Due to this implementation be applied to such as broken wall cooking machine small household appliances blower have the characteristics that it is high-revolving, so
Stronger wind pressure can be generated in spiral case main body 10 and spiral case lid 20, in order to guarantee leakproofness of the spiral case main body in conjunction with spiral case lid and
Stability, spiral case lid 20 in this implementation with have on the faying face of spiral case inlet pressure 12 and the consistent L of spiral case inlet pressure 12
Type groove body 21.Fig. 4 is a kind of spiral case lid schematic diagram provided in an embodiment of the present invention.Fig. 5 is one kind provided in an embodiment of the present invention
Sectional view of the spiral case inlet pressure in conjunction with L-type groove body, wherein A is spiral case inlet pressure, and B is L-type groove body.
In another implementation, L-type groove body is replaced in order to which U-type groove body agrees with spiral case inlet pressure, and Fig. 6 is the realization
Sectional view of the spiral case inlet pressure in conjunction with U-type groove body in mode, wherein A is spiral case inlet pressure, and C is U-type groove body.As it can be seen that the spiral case
The groove body shape of lid be it is variable, be preferred with sufficiently agreeing with spiral case inlet pressure 12.
In view of assembly and required precision, can select different types of locking part to spiral case main body 10 and spiral case lid 20 into
Row is fixed, it is preferable that the air exhaust muffler device of the present embodiment makes the mode being screwed.Therefore, it is located at spiral case in end plates
The position in the outside of molded line 12 is provided with 4 screw positioning columns 18, and also there are four corresponding with positioning column 18 fixed for tool on spiral case lid 20
Position hole 22, the positioning column 18 are identical as the aperture of the location hole 22.
Optionally, in other implementations, position, quantity and the pore size of the positioning column 18 can be adjusted
It is whole.
Optionally, in other implementations, spiral case main body 10 and spiral case lid 20 are using buckle or other fixed forms
In conjunction with.
Based on the aforementioned air exhaust muffler device for Fig. 1 embodiment, in order to expand spiral case exhaust port area, spiral case lid 20 exists
The position of corresponding spiral case exhaust outlet 14 is become being obliquely installed a ramp structure 23 from level.The tilt angle on this slope 23
It is not recommended that otherwise influencing whether the bottom placement and beauty of the air exhaust muffler device of the present embodiment more than 45 °.Preferably, at this
In embodiment, this inclination angle is 30 °.
Optionally, in other implementations, the shape of spiral case exhaust outlet can also be changed to trumpet type or it is trapezoidal with
Achieve the purpose that equally to expand spiral case exhaust port area.
As can be seen that the air exhaust muffler device of the embodiment of the present invention is using the volute structure and one of single layer siding into a row's
Flow-guiding structure, and by CFD emulation be provided with positioned at spiral case exhaust ports deflector, have it is compact-sized, space accounting is small,
The advantages that good heat dissipation effect.In the case where meeting the basic function demand of spiral case, exist by using microperforated panel noise-cancelling theory
Micropunch is set on spiral case inlet pressure and deflector, can reduce 1~2dB of fan noise in testing, reaches preferable noise reduction effect
Fruit, while also having evaded because placing temperature rise and safety problem caused by acoustical cotton inside spiral case.
Embodiment two
Present embodiments providing a kind of household appliance with blower, the household appliance includes motor 30, fan 40, Gu
Determine frame 50, any air exhaust muffler device described in buckle 60 and support base 70 and embodiment one；Wherein, when the fan 40
When reaching the fixation position of the fan 40, the fixed frame 50 and the installation groove body 17 in the air exhaust muffler device together structure
At the fixed structure of fan 40.Since the household appliance in the embodiment uses whole technical solutions of embodiment one,
At least all beneficial effects brought by the technical solution with embodiment one, this is no longer going to repeat them.
Fig. 7 is a kind of blower fan system schematic diagram provided in an embodiment of the present invention, and Fig. 8 is the sectional view of Fig. 7, such as Fig. 7 and Fig. 8
Shown, in the present embodiment, fan 40 is placed in by volute air-inlet mouth 13.When work, fan 40 is rotated, the heat that motor 30 is generated
Amount is imported from volute air-inlet mouth 13, then is discharged from spiral case exhaust outlet 14, realizes the heat sinking function of household appliance.Due to spiral case lid 20
There is no aperture, fan 40 cannot interference with spiral case lid 20, so needing the position of fan attachment 40.
Preferably, in a kind of implementation of the present embodiment, the position of the fan 40 is fan 40 and spiral case exhaust outlet
14 are maintained at same level, and under this position, radiating airflow derived from fan can be horizontally discharged from spiral case exhaust outlet, can be with
Effectively reduce water conservancy diversion windage.
Since fan 40 is difficult to fix inside spiral case, so the method for fixed motor 30 can be passed through in the present embodiment
Come fan attachment position.In view of assembly difficulty and device precision, a kind of implementation of the present embodiment uses fixed frame 50,
Buckle 60, support base 70 and installation groove body 17 cooperate the position of fan attachment.Wherein, the installation groove body 17 in this implementation is
Round groove body.50 length of fixed frame is greater than the diameter of installation groove body 17, when fan 40 reaches the fixation position of the fan,
When i.e. fan 40 is with 14 same level of spiral case exhaust outlet, fixed frame 50 intersects fixation with the end face of installation groove body 17.Described
There is card slot on fixed frame 50, is combined by cooperating the buckle 60 of the card slot that fixed frame 50 may be implemented with motor 30.In electricity
There are four the support frame 70 for being embedded in installation groove body 17, the vertical edges of support frame as described above to be connected with groove body inner wall for the shell of machine 30
It connects, the horizontal sides of support frame as described above are placed on the end plates of installation groove body 17, this structure is constituted motor 30 and installation groove body
17 combine.
It can be seen that the fixed structure in the implementation is to be incorporated in fixed frame 50, motor 30 and installation groove body 17
Structure together has determined the position of fan 40 by the fixed structure, has made fan 40 will not be because of the generation that runs at high speed
It vibrates and deviates from air exhaust muffler device described in embodiment one, therefore improve the safety of household appliance.
Optionally, in other implementations, buckle 60 can be replaced with to the other modes such as screw by fixed frame and electricity
Machine combines.
Optionally, in other implementations, the shape for installing groove body 17 can be ellipse, square or other shapes
Shape.
Optionally, in other implementations, the household appliance includes：Wall-breaking machine, blender, juice extractor or soya-bean milk
The household appliances such as machine.
It should be noted that：Between technical solution documented by the embodiment of the present invention, in the absence of conflict, Ke Yiren
Meaning combination.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of air exhaust muffler device, which is characterized in that the air exhaust muffler device is applied in the household appliance with blower,
The air exhaust muffler device includes：Spiral case main body and spiral case lid；
Wherein, the spiral case main body includes the wherein end plates of one end and the spiral case inlet pressure with the end plates vertical connection；Institute
It states and is provided with circular open on end plates as volute air-inlet mouth；The spiral case inlet pressure surrounds a notch and is set as spiral case exhaust
Mouthful；The end plates are provided with deflector in the position of the spiral case exhaust outlet；On the spiral case inlet pressure and the deflector all
It is provided with micropunch；
The spiral case lid be located at the spiral case main body the other end and the spiral case inlet pressure vertical connection, the spiral case lid with it is described
Spiral case main body constitutes flow-guiding structure.
2. air exhaust muffler device according to claim 1, which is characterized in that the aperture of the micropunch and punching rate according to
Noise frequency determines.
3. air exhaust muffler device according to claim 2, which is characterized in that the aperture of the micropunch be 0.1mm~
1mm, punching rate 5%.
4. air exhaust muffler device according to claim 1 to 3, which is characterized in that in the spiral case on the outside of the spiral case main body
Installation groove body is additionally provided on end plates, the volute air-inlet mouth is located at the bottom of the installation groove body.
5. air exhaust muffler device described in -4 according to claim 1, which is characterized in that the quantity of the deflector is three,
Form and position distribution are determined by the fluid situation of the flow-guiding structure.
6. air exhaust muffler device described in -5 according to claim 1, which is characterized in that the spiral case lid and the spiral case inlet pressure
Joint surface is provided with and the consistent L-type groove body of the spiral case inlet pressure.
7. air exhaust muffler device described in -6 according to claim 1, which is characterized in that the spiral case inlet pressure and the spiral case lid are logical
The L-type groove body is crossed to combine.
8. air exhaust muffler device described in -7 according to claim 1, which is characterized in that the spiral case is covered in the spiral case exhaust outlet
It is provided with slope.
9. a kind of household appliance with blower, which is characterized in that the household appliance includes motor, fan, fixed frame, buckle
With support base and the described in any item air exhaust muffler devices of claim 1-8；Wherein, when the fan reaches the fan
When fixed position, the installation groove body in the fixed frame and the air exhaust muffler device constitutes the fixed structure of fan.
10. household appliance according to claim 9, which is characterized in that the fixation position of the fan be the fan with
Spiral case exhaust outlet in the described in any item air exhaust muffler devices of claim 1-8 is maintained at same level.
11. according to household appliance described in claim 9-10, which is characterized in that the fixed structure of the fan is the fixation
Frame intersects fixation with the installation groove body in the exhausting silencer structure, and the fixed frame is connected with motor by buckle, the electricity
Machine is provided with support base and is embedded in the installation groove body of the exhausting silencer structure.
12. according to household appliance described in claim 9-11, which is characterized in that the household appliance includes：Wall-breaking machine, stirring
Machine, juice extractor or soy bean milk making machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636211.2A CN108869407A (en) | 2018-06-20 | 2018-06-20 | A kind of air exhaust muffler device and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810636211.2A CN108869407A (en) | 2018-06-20 | 2018-06-20 | A kind of air exhaust muffler device and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869407A true CN108869407A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810636211.2A Pending CN108869407A (en) | 2018-06-20 | 2018-06-20 | A kind of air exhaust muffler device and household appliance |
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| CN (1) | CN108869407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196802A (en) * | 2020-09-10 | 2021-01-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencing cover, compressor and air conditioner |
| CN112253542A (en) * | 2020-09-25 | 2021-01-22 | 宁波方太厨具有限公司 | Volute, centrifugal fan applying volute, range hood and control method of range hood |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196802A (en) * | 2020-09-10 | 2021-01-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencing cover, compressor and air conditioner |
| CN112253542A (en) * | 2020-09-25 | 2021-01-22 | 宁波方太厨具有限公司 | Volute, centrifugal fan applying volute, range hood and control method of range hood |
| CN112253542B (en) * | 2020-09-25 | 2022-03-18 | 宁波方太厨具有限公司 | Control method of range hood |
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