CN110211560A - Resonance sound-absorbing structure and air-conditioning draught fan component - Google Patents
Resonance sound-absorbing structure and air-conditioning draught fan component Download PDFInfo
- Publication number
- CN110211560A CN110211560A CN201910475770.4A CN201910475770A CN110211560A CN 110211560 A CN110211560 A CN 110211560A CN 201910475770 A CN201910475770 A CN 201910475770A CN 110211560 A CN110211560 A CN 110211560A
- Authority
- CN
- China
- Prior art keywords
- air
- ducting ring
- absorbing structure
- resonance sound
- outer layer
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/245—Means for preventing or suppressing noise using resonance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of resonance sound-absorbing structure and air-conditioning draught fan component, wherein the resonance sound-absorbing structure is used for counter-rotating fan, and the resonance sound-absorbing structure includes air-ducting ring, and the air-ducting ring is equipped with multiple slits through the air-ducting ring；The air-ducting ring outer cover is equipped with outer layer, and the outer layer is equipped with multiple demarcation plates towards a side surface of the air-ducting ring；The axial ends of the air-ducting ring is respectively equipped with weatherseal；The weatherseal, the outer layer, the air-ducting ring and the adjacent demarcation plate are enclosed sound absorption chamber, and the counter-rotating fan is set in the resonance sound-absorbing structure, and the air-flow of the counter-rotating fan is intracavitary into the sound absorption by the slit.The present invention forms sound absorption chamber by using air-ducting ring, demarcation plate, outer layer, air-flow by slit enter sound absorption it is intracavitary, air-flow generates vibration friction by air-ducting ring, while air-flow generates sound energy loss in sound absorption chamber, realizes the effect that noise reduction is carried out to the low frequency rotating noise of counter-rotating fan.
Description
Technical field
The present invention relates to air-conditioning equipment field, in particular to a kind of resonance sound-absorbing structure and air-conditioning draught fan component.
Background technique
Since contra-rotating axial fan has many advantages, such as that Wind Volume, air supplying distance are remote, therefore it can will be applied to field of air conditioning, but
Contra-rotating axial fan has the shortcomings that high noise simultaneously, if being installed in user's family, can make under high speed conditions
At the effect that greatly disturbs residents.Counter rotating axial flow Fan is under overlength distance air supply pattern at present, due to needing biggish wind velocity out,
It generally requires and revolving speed is transferred to very high revolving speed.In addition, after air-flow enters blower, under the action of one stage impeller, pressure rise,
Sencond stage impeller continues to do work to it on the basis of this, so that stream pressure further increases.And equally distributed leaf on running wheel
Gas medium around piece strike causes the periodic pressure fluctuation of ambient gas, and then forms huge rotational noise.This
The general sound of kind of Rotation Noise and its droning, can allow people extremely irritated.
Summary of the invention
The main object of the present invention is to propose a kind of resonance sound-absorbing structure and air-conditioning draught fan component, it is intended to which it is existing right to improve
Existing for cyclone cluster the problem of low frequency abnormal sound.
To achieve the above object, a kind of resonance sound-absorbing structure proposed by the present invention is used for counter-rotating fan, the resonance sound-absorbing
Structure includes air-ducting ring, and the air-ducting ring is equipped with multiple slits through the air-ducting ring；
The air-ducting ring outer cover is equipped with outer layer, and the outer layer is equipped with more towards a side surface of the air-ducting ring
A demarcation plate；
The axial ends of the air-ducting ring is respectively equipped with weatherseal；The weatherseal, the outer layer, the air-ducting ring with
And the adjacent demarcation plate is enclosed sound absorption chamber, the counter-rotating fan is set in the resonance sound-absorbing structure, described to whirlwind
The air-flow of machine is intracavitary into the sound absorption by the slit.
Optionally, axial one end of the outer layer is equipped with gear edge, and the gear is along set on the outer layer and the wind-guiding
Between circle, so that gear edge is configured to one of them described weatherseal.
Optionally, along including several connecting plates, each connecting plate is connected with the outer layer gear respectively, so that
Several connecting plates are enclosed annular structure；
The end of the connecting plate is equipped with fixed plate, and the end of the adjacent connecting plate is connected with each other by fixed plate.
Optionally, the air-ducting ring is equipped with positioning plate；
The fixed plate of the adjacent connecting plate is located by connecting by the positioning plate.
Optionally, the slit is that several microwell arrays are formed.
Optionally, the slit is rectangle through hole.
Optionally, the length direction of the slit is to circumferentially extend along the air-ducting ring.
Optionally, the wind-guiding ring outer wall is equipped with rib；
The sound absorption chamber is separated to form adjacent cavity by the rib.
Optionally, the length direction of the demarcation plate is parallel to the outer layer axial direction, and the adjacent demarcation plate is described in
Outer layer is circumferentially uniformly distributed.
Optionally, the rib and the air-ducting ring are coaxially disposed, and the length direction of the rib is outside the air-ducting ring
Wall circumferentially extending.
The present invention on the basis of above-mentioned resonance sound-absorbing structure, propose a kind of air-conditioning draught fan component, including panel, motor with
And resonance sound-absorbing structure described above；
The counter-rotating fan includes the level-one wind wheel and second level wind wheel that axle center coincides；
The motor includes the first motor for driving the level-one wind wheel and for driving the second level wind wheel
Two motors；
The first motor is set on the resonance sound-absorbing structure, and second motor is set on the panel.
Technical solution of the present invention forms sound absorption chamber by using air-ducting ring, demarcation plate, outer layer, and air-flow is entered by slit
It absorbs sound intracavitary, air-flow generates vibration friction, while air-flow generation sound energy loss when entering sound absorption chamber by slit by air-ducting ring
Consumption realizes the effect that noise reduction is carried out to the low frequency rotating noise of counter-rotating fan.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is resonance sound-absorbing structure schematic diagram in one embodiment of the invention；
Fig. 2 is Fig. 1 main view；
Fig. 3 is Fig. 2A-A to cross-sectional view；
Fig. 4 is air-ducting ring narrow slit structure schematic diagram in one embodiment of the invention；
Fig. 5 is the position A partial enlarged view in Fig. 4；
Fig. 6 is the air guide ring structure schematic diagram of micropore shape slit in one embodiment of the invention；
Fig. 7 is B portion structure schematic diagram in Fig. 6；
Fig. 8 is Fig. 6 main view；
Fig. 9 is B-B direction cross-sectional view in Fig. 8；
Figure 10 is the position C partial enlarged view in Fig. 9；
Figure 11 is gear edge and outer ring schematic diagram of a layer structure in one embodiment of the invention；
Figure 12 is Figure 11 main view；
Figure 13 is the position D partial enlarged view in Figure 11；
Figure 14 is air-conditioning blower fan structure schematic diagram in one embodiment of the invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Panel | 11 | First motor |
| 12 | Second motor | 13 | Level-one wind wheel |
| 14 | Second level wind wheel | 20 | Air-ducting ring |
| 21 | Slit | 22 | Rib |
| 23 | Positioning plate | 30 | Outer layer |
| 31 | Demarcation plate | 40 | Keep off edge |
| 41 | Fixed plate | 42 | Weatherseal |
| 50 | Absorb sound chamber |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object 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, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, Fig. 1 is resonance sound-absorbing structure schematic diagram in one embodiment of the invention, and Fig. 2 is Fig. 1 master
View, Fig. 3 are Fig. 2A-A to cross-sectional view, and the present invention proposes a kind of resonance sound-absorbing structure, are used for counter-rotating fan (not shown),
The resonance sound-absorbing structure includes air-ducting ring 20, and the air-ducting ring 20 is equipped with multiple slits 21 through the air-ducting ring 20；
20 outer cover of air-ducting ring is equipped with outer layer 30, and the outer layer 30 is equipped with more towards a side surface of the air-ducting ring 20
A demarcation plate 31；The axial ends of the air-ducting ring 20 is respectively equipped with weatherseal 42；The weatherseal 42, the outer layer 30,
The air-ducting ring 20 and the adjacent demarcation plate 31 are enclosed sound absorption chamber 50, and the counter-rotating fan is set to the resonance sound-absorbing
In structure, the air-flow of the counter-rotating fan is entered in the sound absorption chamber 50 by the slit 21.The outer layer 30 with it is described
Cavity is formed between air-ducting ring 20, the weatherseal 42 is for being sealed the axial ends of the cavity.
In counter-rotating fan operation, under the action of counter-rotating fan, air-flow can the oriented air-ducting ring 20 shock
Active force, air-flow enter the sound absorption chamber when contacting the air-ducting ring 20, through the slit 21 in the air-ducting ring 20
50, under the action of the air-ducting ring 20, the slit 21 and sound absorption chamber 50, realize the noise for reducing counter-rotating fan.
When due to counter-rotating fan operation, air-flow is acted on by centrifugal force, is had under the action of the counter-rotating fan
The trend moved to 20 direction of air-ducting ring, for air-flow when contacting the air-ducting ring 20, air-flow hits the air-ducting ring 20, institute
Itself vibration for stating air-ducting ring 20 can bring certain viscous consumption, since the air-ducting ring 20 is equipped with the slit 21, gas
The frictional dissipation when interacting with the air-ducting ring 20, between air-flow and the air-ducting ring 20 is flowed, can be played certain
Noise reduction effect.Since sound wave is a kind of mechanical wave, when sound wave passes through the slit 21, can cause air in the slit 21 and
The fiber fines of material generate vibration, and friction and viscosity resistance is caused to cause so that sound can be converted into thermal energy and be absorbed
Sound wave is gradually attenuated, and then further increases the noise reduction effect of the air-ducting ring 20.
Fig. 4 and Fig. 5 are please referred to, Fig. 4 is air-ducting ring narrow slit structure schematic diagram in one embodiment of the invention, and Fig. 5 is A in Fig. 4
Position partial enlarged view, after air-flow enters the sound absorption chamber 50 by the slit 21 in the air-ducting ring 20, the gear
Wind part 42, the air-ducting ring 20, the outer layer 30 and the adjacent demarcation plate 31 form the sound absorption chamber of relative closure
50, which forms a resonator, when sound wave incidence wave frequency close to the intrinsic of resonator described in this
When frequency, the air of the slit 21 can generate strong vibration, in vibration processes, disappear due to needing to overcome frictional resistance
Consumption sound energy, and then play noise elimination effect.The low frequency rotating under counter-rotating fan rotation is significantly reduced by the resonance sound-absorbing structure to make an uproar
Sound, while fan noise can be reduced, user's sense of hearing is greatly promoted, user experience is promoted.Especially in overlength distance air supply pattern
Under, bass can significantly reduce.
In one embodiment of the invention, the slit 21 can be rectangle through hole.The resonance sound-absorbing structure
Resonant frequency calculates formula are as follows:
In above-mentioned formula one, c is the velocity of sound, and S is punching rate, and L is air layer thickness, and t is plate thickness, and l is that the end of plate thickness is repaired
Just.
Wherein:
In above-mentioned formula two, b is 21 width of slit, and B is 21 spacing of slit.
Wherein: the preferred scope of S is 10%-25%；
The preferred scope of b is 0.2-5mm；
The preferred scope of B is 5-45mm；
The preferred scope of t is 1-10mm；
The preferred scope of L is 5-50mm.
It is placed on microphone immediately ahead of cabinet-type air conditioner for (one meter of height, a meter Yuan), to the low frequency abnormal sound of the counter-rotating fan
It is detected:
Table 1
By above-mentioned 1 test data of table it is found that in the case of outside wind wheel is all 700 revolutions per minute inside, using the slit 21
Resonance sound-absorbing structure, so that the peak value of 106 hertz of the low frequency of the counter-rotating fan drops to 34.6 decibels by 37.8 decibels, decline
Nearly 3.2 decibels, while noise total value reduces 0.6 decibel.
Fig. 6, Fig. 7 and Fig. 8 are please referred to, Fig. 6 is the air guide ring structure schematic diagram of micropore shape slit in one embodiment of the invention,
Fig. 7 is B portion structure schematic diagram in Fig. 6, and Fig. 8 is Fig. 6 main view, in another embodiment of the present invention, the slit 21
It is formed for several microwell arrays.The micropore presses certain path array in the air-ducting ring 20, so that 20 shape of the air-ducting ring
At porous structure, for the micropore maximum gauge between 0.3 to 5 millimeter, the punching rate of the micropore is 1% to 65%.Institute
The permeable structures of other shapes can also be used by stating slit 21.
Fig. 9 and Figure 10 are please referred to, Fig. 9 is B-B direction cross-sectional view in Fig. 8, and Figure 10 is the position C partial enlarged view in Fig. 9, described
The length direction of slit 21 can be to circumferentially extend along the air-ducting ring 20, and the length direction of the air-ducting ring 20 can also be parallel
In the axial direction of the air-ducting ring 20.Optionally, multiple slits 21 are circumferentially distributed along the air-ducting ring 20 by the present invention.It is described to lead
Solar or lunar halo 20 can be to be evenly arranged in the air-ducting ring 20, so that the slit 21 is uniformly connected to the suction in the air-ducting ring 20
The operatic tunes 50.
The weatherseal 42 can be formed for the 20 axial ends warpage of air-ducting ring, lead the weatherseal 42 described
20 both ends of solar or lunar halo form borderline structure, when the outer layer 30 is set in 20 outside of air-ducting ring, the weatherseal 42 with
30 axial ends of outer layer matches, so that the axial ends of the air-ducting ring 20 and the outer layer 30 realizes closing.
The weatherseal 42 also can be set in 30 axial ends of outer layer, structure and setting in the air-ducting ring 20 axial two
End is mutually equivalent.
In one embodiment of the invention, axial one end of the air-ducting ring 20 is provided with the weatherseal 42,
Gear is provided in the outer layer 30 of the axial other end of the air-ducting ring 20 along 40, which can be used as described along 40
Weatherseal 42 uses, and the gear is respectively used to close the air-ducting ring 20 and 30 shape of outer layer with the weatherseal 42 along 40
At cavity axial ends position so that the weatherseal 42 and the gear are along 40 pairs of described opposite two ends of sound absorption chambers 50
Face is sealed.
Figure 11, Figure 12 and Figure 13 please be participate in, Figure 11 is gear edge and outer ring schematic diagram of a layer structure, figure in one embodiment of the invention
12 be Figure 11 main view, and Figure 13 is the position D partial enlarged view in Figure 11, in order to improve the resonance sound-absorbing structure to low frequency abnormal sound
Sound absorption efficiency, in one embodiment of the invention, 20 outer wall of air-ducting ring be equipped with rib 22；The rib 22 is by institute
It states sound absorption chamber 50 and is separated to form adjacent cavity.The volume of the sound absorption chamber 50 is reduced by the rib 22, air-flow passes through institute
It states slit 21 and enters the cavity inside, under the action of sound wave, air vibrates friction, benefit in the generation of 21 wall surface of slit
With viscous damping and conductive force, increase sound energy loss.
The demarcation plate 31 can be uniformly distributed in the outer layer 30, can be with uneven distribution；The demarcation plate 31
It can be parallel to the axial distribution of the outer layer 30, it can also be axial not parallel with the outer layer 30.
Optionally, the length direction of the demarcation plate 31 is parallel to the outer layer 30 axially to the present invention, and adjacent described point
Partition 31 is circumferential uniformly distributed along the outer layer 30.The sound absorption chamber 50 formed between the adjacent outer layer 30 is that size is impartial
Structure, the viscosity resistance that is subject to is equal when air-flow enters the sound absorption chamber 50 by the slit 21, the sound energy loss of generation
It is identical, and then avoid air-flow unevenly caused noise.
Optionally, the rib 22 is coaxially disposed the present invention with the air-ducting ring 20, the length direction edge of the rib 22
20 outer wall of the air-ducting ring circumferentially extending.The rib 22, the air-ducting ring 20, the outer layer 30 and the demarcation plate 31
Between formed at equal intervals the sound absorption chamber 50.
When the adjacent demarcation plate 31 is circumferentially distributed along the outer layer 30, can be set on the demarcation plate 31
It is placed in the corresponding groove in 22 position of rib, after the outer layer 30 is set in the air-ducting ring 20, the rib
Item 22 is embedded in the groove on the demarcation plate 31, realizes the positioning of the outer layer 30, meanwhile, it can be to avoid described
The relatively described air-ducting ring 20 of outer layer 30 moves axially, and then the stability of the outer layer 30 can be improved, and makes the sound absorption
Chamber 50 keeps constant state, to guarantee its reliable sqouynd absorption lowering noise effect.
In one embodiment of the invention, it is equipped with sound-absorbing material in the sound absorption chamber 50, institute is improved by sound-absorbing material
State the noise reduction effect of sound absorption chamber 50.The sound-absorbing material can be porous material, and such as elastic porous material can compress it
In the air-ducting ring 20.
For the gear along 40 installation, optionally, the gear includes several connecting plates along 40 to the present invention, each described for convenience
Connecting plate is connected with the outer layer 30 respectively, so that several connecting plates are enclosed annular structure；The connection
The end of plate is equipped with fixed plate 41, and the end of the adjacent connecting plate is connected with each other by fixed plate 41.The connecting plate can be with
It is integrally formed with the fixed plate 41, the connecting plate end is made to form the fixed plate 41 to external warpage.
During installation, the adjacent connecting plate is mutually spliced, it will be described solid on the adjacent connecting plate by screw
Fixed board 41 is connected with each other, and the mutual assembling of the connecting plate can be realized.
The connecting plate can be integrally formed with the outer layer 30, and described 30 one end of outer layer is bent to form to outside
The gear is along 40, to improve leakproofness of the gear between 40 and the outer layer 30, avoid the outer layer 30 with it is described
Gear, which gap occurs between 40, leads to noise.
The gear is along 40 installation for convenience, and in one embodiment of the present of invention, the air-ducting ring 20 is equipped with positioning
Plate 23；The fixed plate 41 of the adjacent connecting plate is located by connecting by the positioning plate 23.The positioning plate 23 can be set
It sets on the outer wall of the air-ducting ring 20, the air-ducting ring 20 is corresponding with 41 position of fixed plate, it is described outer when determining
After the position of ring layer 30, the outer layer 30 is set in the air-ducting ring 20, it is described solid on the adjacent connecting plate
Fixed board 41 is located at 23 two sides of positioning plate, at this time the fixed plate 41 by screw on the adjacent connecting plate with
And the positioning plate 23 realizes the installation kept off along 40 so that the positioning plate 23 and the fixed plate 41 are connected with each other.
When the gear is integrally formed along 40 with the outer layer 30, the connecting plate is being fixed on the air-ducting ring 20
After upper, the position of the outer layer 30 also determines relatively, facilitates the quick positioning of the outer layer 30.
The present invention proposes a kind of embodiment of air-conditioning draught fan component on the basis of above-mentioned resonance sound-absorbing structure.
Figure 14 is please referred to, Figure 14 is air-conditioning blower fan structure schematic diagram in one embodiment of the invention, the air-conditioning draught fan component
Including panel 10, motor and resonance sound-absorbing structure described above；The counter-rotating fan includes the force one wind that axle center coincides
Wheel 13 and second level wind wheel 14；The motor includes first motor 11 for driving the level-one wind wheel 13 and described for driving
Second motor 12 of second level wind wheel 14；The first motor 11 is set on the resonance sound-absorbing structure, and second motor 12 is set
In on the panel 10.
The counter-rotating fan is arranged on the air duct of the air-conditioning draught fan, and the resonance sound-absorbing structure is arranged in the air-conditioning
The import of blower.
The counter-rotating fan includes the level-one wind wheel 13 and second level wind wheel 14 being oppositely arranged.It is aobvious by the resonance sound-absorbing structure
The low frequency rotating noise reduced under the counter-rotating fan rotation is write, while the noise of air-conditioning draught fan can be reduced.
This programme can be used on the indoor unit of air-conditioning draught fan, compares outdoor machine of air-conditioner, does not have compressor on air conditioner indoor unit,
The counter-rotating fan run when can generate low frequency noise, through the invention described in resonance sound-absorbing structure, can be to low frequency rotating
Noise plays good sqouynd absorption lowering noise effect, is able to ascend user's sense of hearing, promotes user experience, especially blows in overlength distance
Under mode, bass be can significantly reduce.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (11)
1. a kind of resonance sound-absorbing structure is used for counter-rotating fan, which is characterized in that the resonance sound-absorbing structure includes air-ducting ring, institute
Air-ducting ring is stated equipped with multiple slits through the air-ducting ring；
The air-ducting ring outer cover is equipped with outer layer, and the outer layer is equipped with multiple points towards a side surface of the air-ducting ring
Partition；
The axial ends of the air-ducting ring is respectively equipped with weatherseal；The weatherseal, the outer layer, the air-ducting ring and phase
The adjacent demarcation plate is enclosed sound absorption chamber, and the counter-rotating fan is set in the resonance sound-absorbing structure, the counter-rotating fan
Air-flow is intracavitary into the sound absorption by the slit.
2. resonance sound-absorbing structure as described in claim 1, which is characterized in that axial one end of the outer layer is equipped with gear edge,
The gear is along being set between the outer layer and the air-ducting ring, so that gear edge is configured to keep out the wind described in one of them
Part.
3. resonance sound-absorbing structure as claimed in claim 2, which is characterized in that the gear edge includes several connecting plates, each described
Connecting plate is connected with the outer layer respectively, so that several connecting plates are enclosed annular structure；
The end of the connecting plate is equipped with fixed plate, and the end of the adjacent connecting plate is connected with each other by fixed plate.
4. resonance sound-absorbing structure as claimed in claim 3, which is characterized in that the air-ducting ring is equipped with positioning plate；
The fixed plate of the adjacent connecting plate is located by connecting by the positioning plate.
5. resonance sound-absorbing structure as described in claim 1, which is characterized in that the slit is that several microwell arrays are formed.
6. resonance sound-absorbing structure as described in claim 1, which is characterized in that the slit is rectangle through hole.
7. resonance sound-absorbing structure as described in claim 1, which is characterized in that the length direction of the slit is along the wind-guiding
Circle circumferentially extending.
8. resonance sound-absorbing structure as described in claim 1, which is characterized in that the wind-guiding ring outer wall is equipped with rib；
The sound absorption chamber is separated to form adjacent cavity by the rib.
9. resonance sound-absorbing structure as claimed in claim 8, which is characterized in that the length direction of the demarcation plate is parallel to described
Outer layer is axial, and the adjacent demarcation plate is circumferentially uniformly distributed along the outer layer.
10. resonance sound-absorbing structure as claimed in claim 9, which is characterized in that the rib and the air-ducting ring are coaxially disposed,
The length direction of the rib is circumferentially extended along the wind-guiding ring outer wall.
11. a kind of air-conditioning draught fan component, which is characterized in that including panel, motor and as described in claim any one of 1-10
Resonance sound-absorbing structure；
The counter-rotating fan includes the level-one wind wheel and second level wind wheel that axle center coincides；
The motor includes the first motor for driving the level-one wind wheel and the second electricity for driving the second level wind wheel
Machine；
The first motor is set on the resonance sound-absorbing structure, and second motor is set on the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475770.4A CN110211560B (en) | 2019-05-31 | 2019-05-31 | Resonance sound absorption structure and air conditioner fan subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475770.4A CN110211560B (en) | 2019-05-31 | 2019-05-31 | Resonance sound absorption structure and air conditioner fan subassembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110211560A true CN110211560A (en) | 2019-09-06 |
| CN110211560B CN110211560B (en) | 2022-02-08 |
Family
ID=67790457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910475770.4A Active CN110211560B (en) | 2019-05-31 | 2019-05-31 | Resonance sound absorption structure and air conditioner fan subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110211560B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454412A (en) * | 2019-09-10 | 2019-11-15 | 代元军 | A kind of local mine axial flow formula ventilation blower installing resonator muffler additional |
| EP3945219A1 (en) * | 2020-07-27 | 2022-02-02 | Carrier Corporation | Noise reduction device for outlet side of fan and heat exchange system including the same |
| CN116045414A (en) * | 2022-12-15 | 2023-05-02 | 南京林业大学 | Continuous frequency-adjustable ventilation sound insulation structure based on Fano resonance and frequency modulation method |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1321725A1 (en) * | 2001-12-21 | 2003-06-25 | Liebert Hiross S.p.A. | Device particularly for reducing the noise emitted by air conditioners |
| JP2006189000A (en) * | 2005-01-07 | 2006-07-20 | Hitachi Ltd | Air-conditioning outdoor unit |
| CN101061354A (en) * | 2005-01-24 | 2007-10-24 | Lg电子株式会社 | Air-conditioner |
| CN101776095A (en) * | 2009-12-19 | 2010-07-14 | 广东美的电器股份有限公司 | Method for improving noise of double wind wheel resonance |
| DE102011016380A1 (en) * | 2011-04-07 | 2012-10-11 | Al-Ko Kober Ag | Exhaust gate for ventilation apparatus for use in heating, ventilation, and air conditioning (HVAC) system, has resonance plate that is provided on the insulating element and is supported by frame |
| CN103062137A (en) * | 2012-07-08 | 2013-04-24 | 刘凡岩 | ZKDG-series resistance-expanding multi-cavity resonance type ventilator silencer |
| US20130164697A1 (en) * | 2011-12-27 | 2013-06-27 | Rinnai Corporation | Combustion Apparatus |
| WO2014006650A1 (en) * | 2012-07-03 | 2014-01-09 | 三菱電機株式会社 | Indoor unit for air conditioner, and air conditioner with indoor unit |
| CN203454371U (en) * | 2013-08-29 | 2014-02-26 | 广东美的制冷设备有限公司 | Low-noise air conditioner indoor cabinet unit |
| CN203867986U (en) * | 2014-04-25 | 2014-10-08 | 广东美的制冷设备有限公司 | Shell assembly used for centrifugal fan, centrifugal fan and refrigeration equipment |
| CN106338140A (en) * | 2016-11-22 | 2017-01-18 | 广东美的暖通设备有限公司 | The Air guide ring, air conditioner outdoor unit and air conditioner |
| CN106403221A (en) * | 2016-11-22 | 2017-02-15 | 广东美的暖通设备有限公司 | Perforating air guide ring, outdoor unit of air conditioner and air conditioner |
| CN206207692U (en) * | 2016-11-22 | 2017-05-31 | 广东美的暖通设备有限公司 | Perforation air-ducting ring, air-conditioner outdoor unit and air-conditioner |
| CN206207706U (en) * | 2016-11-22 | 2017-05-31 | 广东美的暖通设备有限公司 | Air-ducting ring, air-conditioner outdoor unit and air-conditioner |
| US20170243574A1 (en) * | 2016-02-19 | 2017-08-24 | Coretronic Corporation | Method and system for reducing fan noise and electronic device using the same |
| CN206563002U (en) * | 2017-02-21 | 2017-10-17 | 美的集团股份有限公司 | Spiral case, centrifugal blower and range hood for centrifugal blower |
| CN207262574U (en) * | 2017-10-11 | 2018-04-20 | 珠海格力电器股份有限公司 | Air-conditioning internal machine and air conditioner |
| CN208671181U (en) * | 2018-08-31 | 2019-03-29 | 美的集团武汉制冷设备有限公司 | Assembling bracket, fan assembly and air conditioner |
| CN208765234U (en) * | 2018-08-31 | 2019-04-19 | 美的集团武汉制冷设备有限公司 | Assembling bracket, fan assembly and air conditioner |
-
2019
- 2019-05-31 CN CN201910475770.4A patent/CN110211560B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1321725A1 (en) * | 2001-12-21 | 2003-06-25 | Liebert Hiross S.p.A. | Device particularly for reducing the noise emitted by air conditioners |
| JP2006189000A (en) * | 2005-01-07 | 2006-07-20 | Hitachi Ltd | Air-conditioning outdoor unit |
| CN101061354A (en) * | 2005-01-24 | 2007-10-24 | Lg电子株式会社 | Air-conditioner |
| CN101776095A (en) * | 2009-12-19 | 2010-07-14 | 广东美的电器股份有限公司 | Method for improving noise of double wind wheel resonance |
| DE102011016380A1 (en) * | 2011-04-07 | 2012-10-11 | Al-Ko Kober Ag | Exhaust gate for ventilation apparatus for use in heating, ventilation, and air conditioning (HVAC) system, has resonance plate that is provided on the insulating element and is supported by frame |
| US20130164697A1 (en) * | 2011-12-27 | 2013-06-27 | Rinnai Corporation | Combustion Apparatus |
| WO2014006650A1 (en) * | 2012-07-03 | 2014-01-09 | 三菱電機株式会社 | Indoor unit for air conditioner, and air conditioner with indoor unit |
| CN103062137A (en) * | 2012-07-08 | 2013-04-24 | 刘凡岩 | ZKDG-series resistance-expanding multi-cavity resonance type ventilator silencer |
| CN203454371U (en) * | 2013-08-29 | 2014-02-26 | 广东美的制冷设备有限公司 | Low-noise air conditioner indoor cabinet unit |
| CN203867986U (en) * | 2014-04-25 | 2014-10-08 | 广东美的制冷设备有限公司 | Shell assembly used for centrifugal fan, centrifugal fan and refrigeration equipment |
| US20170243574A1 (en) * | 2016-02-19 | 2017-08-24 | Coretronic Corporation | Method and system for reducing fan noise and electronic device using the same |
| CN106338140A (en) * | 2016-11-22 | 2017-01-18 | 广东美的暖通设备有限公司 | The Air guide ring, air conditioner outdoor unit and air conditioner |
| CN106403221A (en) * | 2016-11-22 | 2017-02-15 | 广东美的暖通设备有限公司 | Perforating air guide ring, outdoor unit of air conditioner and air conditioner |
| CN206207692U (en) * | 2016-11-22 | 2017-05-31 | 广东美的暖通设备有限公司 | Perforation air-ducting ring, air-conditioner outdoor unit and air-conditioner |
| CN206207706U (en) * | 2016-11-22 | 2017-05-31 | 广东美的暖通设备有限公司 | Air-ducting ring, air-conditioner outdoor unit and air-conditioner |
| CN206563002U (en) * | 2017-02-21 | 2017-10-17 | 美的集团股份有限公司 | Spiral case, centrifugal blower and range hood for centrifugal blower |
| CN207262574U (en) * | 2017-10-11 | 2018-04-20 | 珠海格力电器股份有限公司 | Air-conditioning internal machine and air conditioner |
| CN208671181U (en) * | 2018-08-31 | 2019-03-29 | 美的集团武汉制冷设备有限公司 | Assembling bracket, fan assembly and air conditioner |
| CN208765234U (en) * | 2018-08-31 | 2019-04-19 | 美的集团武汉制冷设备有限公司 | Assembling bracket, fan assembly and air conditioner |
Non-Patent Citations (2)
| Title |
|---|
| JIANG CAI-LING ET AL: "Experimental and numerical study on aeroacoustic sound of axial flow fan in room air conditioner", 《APPLIED ACOUSTICS》 * |
| 张启顺: "外置单电机对旋风机噪声与振动特性研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454412A (en) * | 2019-09-10 | 2019-11-15 | 代元军 | A kind of local mine axial flow formula ventilation blower installing resonator muffler additional |
| EP3945219A1 (en) * | 2020-07-27 | 2022-02-02 | Carrier Corporation | Noise reduction device for outlet side of fan and heat exchange system including the same |
| US11668328B2 (en) | 2020-07-27 | 2023-06-06 | Carrier Corporation | Noise reduction device for outlet side of fan and heat exchange system including the same |
| CN116045414A (en) * | 2022-12-15 | 2023-05-02 | 南京林业大学 | Continuous frequency-adjustable ventilation sound insulation structure based on Fano resonance and frequency modulation method |
| CN116045414B (en) * | 2022-12-15 | 2023-06-20 | 南京林业大学 | Continuous frequency-adjustable ventilation sound insulation structure based on Fano resonance and frequency modulation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110211560B (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110211560A (en) | Resonance sound-absorbing structure and air-conditioning draught fan component | |
| CN102135298B (en) | Ventilating device (blowing device) and outdoor unit having the same | |
| CN204757185U (en) | Soundproof cotton and have this kind of soundproof cotton's air conditioner off -premises station | |
| CN103629128B (en) | A kind of Silent fan | |
| CN205191870U (en) | Cabinet air conditioner's shell subassembly and cabinet air conditioner | |
| CN204787003U (en) | Air humidifier | |
| CN106403221A (en) | Perforating air guide ring, outdoor unit of air conditioner and air conditioner | |
| JP2002371998A (en) | Blower | |
| CN115234498B (en) | Bispin formula air exhaust equipment of making an uproar that falls | |
| KR20130109515A (en) | Axial fan of outdoor unit of air conditioner | |
| CN207945738U (en) | Cabinet air-conditioner and air conditioner | |
| CN212777691U (en) | Rotating wheel mechanism of rotating wheel dehumidifier | |
| JP2017172845A (en) | Air channel housing and air conditioner | |
| CN209800352U (en) | Cylindrical cabinet machine and anti-condensation cross-flow fan blade thereof | |
| CN209687810U (en) | A kind of fan for cooling transformer with noise reduction function | |
| CN207393507U (en) | low-noise centrifugal fan | |
| CN207246128U (en) | A kind of flabellum, wind turbine and air-conditioning | |
| CN206207692U (en) | Perforation air-ducting ring, air-conditioner outdoor unit and air-conditioner | |
| CN206207706U (en) | Air-ducting ring, air-conditioner outdoor unit and air-conditioner | |
| JP2011202507A (en) | Multiblade blower | |
| JPH10176861A (en) | Air-conditioner | |
| CN220870995U (en) | Fresh air module and air conditioner | |
| CN208059070U (en) | Cabinet air-conditioner and air conditioner | |
| CN204787004U (en) | Air humidifying clarifier | |
| CN218467933U (en) | Noise-proof axial fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |