CN206971439U - A kind of tangent sound absorber - Google Patents
A kind of tangent sound absorber Download PDFInfo
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- CN206971439U CN206971439U CN201720400455.1U CN201720400455U CN206971439U CN 206971439 U CN206971439 U CN 206971439U CN 201720400455 U CN201720400455 U CN 201720400455U CN 206971439 U CN206971439 U CN 206971439U
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- sound absorber
- acoustic board
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Abstract
The utility model belongs to noise reduction technology field, more particularly to a kind of tangent sound absorber.The utility model provides a kind of tangent sound absorber, and tangent sound absorber includes：Female groove, Micropunch Acoustic Board and high frequency absorbent treatment；Female groove is a uncovered hollow cavity, and Micropunch Acoustic Board is arranged at the missing lid of cavity, and high frequency absorbent treatment is arranged at the outer surface of Micropunch Acoustic Board and female groove.Through experimental tests can obtain, a kind of tangent sound absorber provided by the utility model, all increased in the sound absorbing capabilities of all frequency bands, the more aobvious raising of sound absorption particularly to high frequency, acoustic absorptivity is above 0.6 by 2kHz to 5kHz, the absorption to low frequency noise is not only improved, and the sound of medium-high frequency can be controlled in right amount.A kind of tangent sound absorber provided by the utility model, solve in the prior art, be directed to the suspended absorber of low-frequency sound only can carry out absorption processing to low-frequency sound, can not provide extra absorption to the sound of high frequency, application scenarios have limited technological deficiency.
Description
Technical field
The utility model belongs to noise reduction technology field, more particularly to a kind of tangent sound absorber.
Background technology
Suspended absorber is compared with the sound-absorbing material on chamber internal surface, and under same projected area, suspended absorber has
Higher sound absorption efficiency.This is due to that suspended absorber has bigger effective absorption area, includes the upper top of suspended absorber
Face, bottom surface and side；Further, since sound wave multiple reflections between upper top surface and the building top surface of sound absorber, so as to quilt
Repeatedly absorb, increase absorption, improve sound absorption efficiency.
The sound absorbing capabilities of suspended absorber are often represented with effective absorption of the single sound absorber of different frequency.Inhale in space
The sqouynd absorption lowering noise of sound body or reduce the reverberation time effect depend primarily on suspended absorber quantity, suspension spacing and material and
Structure, it is also relevant with the sound field conditions in space.As former chamber internal surface absorption is seldom, reflected sound is more, the reverberation time
Very long, then it is often 5~8 decibels to hang the noise reduction after suspended absorber, up to 10~12 decibels during highest；Such as former indoor table
Face absorption is larger, reverberation process unobvious, then need not hang suspended absorber.However, of the prior art be directed to low frequency
The suspended absorber of sound, can only absorption processing be carried out to low-frequency sound, can not provide extra absorption to the sound of high frequency,
Application scenarios have limitation.
Therefore, a kind of tangent sound absorber is developed, for the space sound absorption for solving in the prior art, to be directed to low-frequency sound
Body only can carry out absorption processing to low-frequency sound, can not provide extra absorption to the sound of high frequency, application scenarios have office
Sex-limited technological deficiency, become those skilled in the art's urgent problem to be solved.
Utility model content
In view of this, the utility model provides a kind of tangent sound absorber, for solving in the prior art, to be directed to low frequency
The suspended absorber of sound only can carry out absorption processing to low-frequency sound, can not provide extra absorption to the sound of high frequency,
Application scenarios have limited technological deficiency.
The utility model provides a kind of tangent sound absorber, and the tangent sound absorber includes：Female groove, Micropunch Acoustic Board and
High frequency absorbent treatment；
The female groove is a uncovered hollow cavity, and the Micropunch Acoustic Board is arranged at the missing lid of the cavity, institute
State the outer surface that high frequency absorbent treatment is arranged at the Micropunch Acoustic Board and female groove.
Preferably, the length of the cavity is more than 200mm.
Preferably, the thickness of the Micropunch Acoustic Board is 0.6mm.
Preferably, the quantity two of the Micropunch Acoustic Board；
Two Micropunch Acoustic Boards are arranged in parallel.
Preferably, the aperture of the Micropunch Acoustic Board is less than 1.0mm.
Preferably, the punching rate of the Micropunch Acoustic Board is less than 13%.
Preferably, the thickness of the female groove is 1.0mm.
Preferably, the Micropunch Acoustic Board is set fluted.
Preferably, the quantity of the groove is two.
Preferably, the outer surface of the female groove is provided with corrosion-resistant coating.
In summary, the utility model provides a kind of tangent sound absorber, and the tangent sound absorber includes：Female groove, micro- wear
Hole acoustic board and high frequency absorbent treatment；The female groove is a uncovered hollow cavity, and the Micropunch Acoustic Board is arranged at the cavity
Missing lid at, the high frequency absorbent treatment is arranged at the outer surface of the Micropunch Acoustic Board and female groove.Through experimental tests can obtain,
A kind of tangent sound absorber provided by the utility model, all increases in the sound absorbing capabilities of all frequency bands, particularly to high frequency
The more aobvious raising of sound absorption, acoustic absorptivity is above 0.6 by 2KHz to 5KHz, not only improves the absorption to low frequency noise, and
The sound of medium-high frequency, set sound absorption and diffusion principle can be controlled in right amount and improves the definition of sound, can be widely applied to drama
In the scene such as institute, between Multifunctional room or recording studio.A kind of tangent sound absorber provided by the utility model, solves prior art
In, be directed to the suspended absorber of low-frequency sound only can carry out absorption processing to low-frequency sound, and the sound of high frequency can not be carried
For extra absorption, application scenarios have limited technological deficiency.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of schematic cross-section for tangent sound absorber that the utility model embodiment provides；
Fig. 2 is a kind of unit sound absorber absorption area for tangent sound absorber that the utility model embodiment provides；
Fig. 3 is a kind of surface acoustic absorptivity for tangent sound absorber that the utility model embodiment provides；
Wherein, in Fig. 1, female groove 1, Micropunch Acoustic Board 2 and high frequency absorbent treatment 3.
Embodiment
The utility model embodiment provides a kind of tangent sound absorber, for solving in the prior art, to be directed to all-bottom sound
The suspended absorber of sound only can carry out absorption processing to low-frequency sound, can not provide extra absorption to the sound of high frequency, should
There is the technological deficiency of limitation with scene.
To enable the purpose of this utility model, feature and advantage more obvious and understandable, below in conjunction with this
Accompanying drawing in utility model embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, and shows
So, the embodiments described below are only the utility model part of the embodiment, and not all embodiment.Based on this practicality
Embodiment in new, all other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of the utility model protection.
Referring to Fig. 1, the utility model embodiment provides a kind of tangent sound absorber, tangent sound absorber includes：
Female groove 1, Micropunch Acoustic Board 2 and high frequency absorbent treatment 3；Female groove 1 is a uncovered hollow cavity, and Micropunch Acoustic Board 2 is arranged at chamber
At the missing lid of body, high frequency absorbent treatment 3 is arranged at the outer surface of Micropunch Acoustic Board 2 and female groove 1.The utility model embodiment carries
In the technical scheme of confession, the sound in environment enters inside cavity by Micropunch Acoustic Board 2 so that after cavity produces resonance,
Sound is decayed；Meanwhile before sound enters tangent sound absorber, can also via high frequency absorbent treatment 3, sound by with height
The friction of frequency absorbent treatment 3, energy exchange is produced, adds the treatment effect for high-frequency sound.Through experimental tests can obtain, this reality
A kind of tangent sound absorber provided with new embodiment, all increases in the sound absorbing capabilities of all frequency bands, particularly to height
The more aobvious raising of sound absorption of frequency, acoustic absorptivity are above 0.6 by 2KHz to 5KHz, not only improve the absorption to low frequency noise, and
And the sound of medium-high frequency can be controlled in right amount, gather sound absorption and diffusion principle and improve the definition of sound, can be widely applied to play
In the scene such as theater, between Multifunctional room or recording studio.The utility model provides a kind of tangent sound absorber of embodiment, solves
In the prior art, be directed to the suspended absorber of low-frequency sound only can carry out absorption processing to low-frequency sound, can not be to high frequency
Sound extra absorption is provided, application scenarios have limited technological deficiency.
On the basis of the good acoustically effective of tangent sound absorber is ensured, while take into account to reduce the body of tangent sound absorber
Product, further to reduce its weight, while being easily installed, does not affect the appearance.Due to the one of the utility model embodiment offer
Kind tangent sound absorber, primarily to the sound of processing low-frequency range is absorbed, because the wavelength of sound of low-frequency range is longer, therefore in mother
Need the route decayed also relatively long in groove 1, consider by testing and can be calculated, the utility model embodiment carries
In a kind of tangent sound absorber supplied, the length of cavity is more than 200mm.
Further optimisation technique scheme, consider the good acoustically effective of Micropunch Acoustic Board 2 and mitigate tangent
The angle of the weight of sound absorber, both Micropunch Acoustic Board 2 can be passed through in order to sound, can be inhaled again by Micropunch Acoustic Board 2
Receive a part of sound.In the technical scheme that the utility model embodiment provides, the thickness of Micropunch Acoustic Board 2 is 0.6mm.
Effectively to ensure the good acoustically effective of Micropunch Acoustic Board 2, further optimize the sound absorption effect of tangent sound absorber
Fruit, in a kind of tangent sound absorber that the utility model embodiment provides, the quantity of Micropunch Acoustic Board 2 two；Two micro- to wear
Arranged in parallel of hole acoustic board 2.Sound, still can be according to Helmholtz after first piece of Micropunch Acoustic Board 2 is passed sequentially through
The principle of acoustic resonator and perforated plate resonator, to the low-frequency sound not yet handled, strength disposal is increased again, further optimization
The acoustically effective of tangent sound absorber.
Drawn by determination of technical staff, the aperture of Micropunch Acoustic Board 2 and perforated area, without being bigger acoustically effective
Better, behind aperture and perforated area arrival a certain threshold value, acoustically effective is deteriorated, and is drawn through test of many times measure, to reach one
Individual relatively optimal acoustically effective, the utility model embodiment provide technical scheme in, the aperture of Micropunch Acoustic Board 2 is less than
1.0mm, the punching rate of Micropunch Acoustic Board 2 are less than 13%.
Further optimisation technique scheme, is easy to the installation of tangent sound absorber, while ensures that sound can be sent out in cavity
Decayed after raw effectively resonance, in the technical scheme that the utility model embodiment provides, the thickness of female groove 1 is 1.0mm.
To be effectively increased the hardness of Micropunch Acoustic Board 2 so that the surface of Micropunch Acoustic Board 2 more straight elevator, limited extension
Its service life, the utility model embodiment provide a kind of tangent sound absorber in, Micropunch Acoustic Board 2 sets fluted.
Further optimisation technique scheme, effectively improve the surface property of Micropunch Acoustic Board 2, the utility model embodiment
In the technical scheme of offer, the quantity of groove is two.
Effectively to extend the service life of tangent sound absorber, it is ensured that tangent sound absorber is prosperous after a long time use can so to be had
Have good sound absorbing capabilities, prevent female groove 1 corroded after acoustically effective be deteriorated, the utility model embodiment provide it is a kind of just
Cut in sound absorber, the outer surface of female groove 1 is provided with corrosion-resistant coating.
Tangent sound absorber is made according to the technical scheme of above-mentioned offer, determines the acoustics of prepared tangent sound absorber
Can, gained acoustical behavior can further regard to Fig. 2 and Fig. 3.It can be drawn from Fig. 2 and Fig. 3, what the utility model embodiment provided
Tangent sound absorber made from technical scheme, unit sound absorber absorption area and two acoustical behavior indexes of surface acoustic absorptivity are good
Good, corresponding data can be drawn from Fig. 2 and Fig. 3, will not be repeated here.
In summary, the utility model provides a kind of tangent sound absorber, and the tangent sound absorber includes：Female groove, micro- wear
Hole acoustic board and high frequency absorbent treatment；The female groove is a uncovered hollow cavity, and the Micropunch Acoustic Board is arranged at the cavity
Missing lid at, the high frequency absorbent treatment is arranged at the outer surface of the female groove.Through experimental tests can obtain, and the utility model provides
A kind of tangent sound absorber, all increased in the sound absorbing capabilities of all frequency bands, the particularly more aobvious raising of the sound absorption to high frequency,
Acoustic absorptivity is above 0.6 by 2KHz to 5KHz, not only improves the absorption to low frequency noise, and can control medium-high frequency in right amount
Sound, set sound absorption and diffusion principle and improve the definition of sound, can be widely applied to drama institute, between Multifunctional room or
In the scenes such as recording studio.A kind of tangent sound absorber provided by the utility model, solves in the prior art, is directed to low-frequency sound
Suspended absorber can only carry out absorption processing to low-frequency sound, extra absorption, application can not be provided the sound of high frequency
Scene has limited technological deficiency.
A kind of tangent sound absorber provided by the utility model is described in detail above, for the general of this area
Technical staff, according to the thought of the utility model embodiment, there will be changes in specific embodiments and applications,
In summary, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of tangent sound absorber, it is characterised in that the tangent sound absorber includes：Female groove, Micropunch Acoustic Board and high frequency are inhaled
Sound layer；
The female groove is a uncovered hollow cavity, and the Micropunch Acoustic Board is arranged at the missing lid of the cavity, the height
Frequency absorbent treatment is arranged at the outer surface of the Micropunch Acoustic Board and female groove.
2. tangent sound absorber according to claim 1, it is characterised in that the length of the cavity is more than 200mm.
3. tangent sound absorber according to claim 1, it is characterised in that the thickness of the Micropunch Acoustic Board is 0.6mm.
4. tangent sound absorber according to claim 1, it is characterised in that the quantity two of the Micropunch Acoustic Board；
Two Micropunch Acoustic Boards are arranged in parallel.
5. the tangent sound absorber according to Claims 1-4 any one, it is characterised in that the Micropunch Acoustic Board
Aperture is less than 1.0mm.
6. tangent sound absorber according to claim 1, it is characterised in that the punching rate of the Micropunch Acoustic Board is less than
13%.
7. tangent sound absorber according to claim 1, it is characterised in that the thickness of the female groove is 1.0mm.
8. tangent sound absorber according to claim 1, it is characterised in that the Micropunch Acoustic Board sets fluted.
9. tangent sound absorber according to claim 8, it is characterised in that the quantity of the groove is two.
10. tangent sound absorber according to claim 1, it is characterised in that the outer surface of the female groove is provided with anticorrosion
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400455.1U CN206971439U (en) | 2017-04-17 | 2017-04-17 | A kind of tangent sound absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400455.1U CN206971439U (en) | 2017-04-17 | 2017-04-17 | A kind of tangent sound absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206971439U true CN206971439U (en) | 2018-02-06 |
Family
ID=61415764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720400455.1U Active CN206971439U (en) | 2017-04-17 | 2017-04-17 | A kind of tangent sound absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206971439U (en) |
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2017
- 2017-04-17 CN CN201720400455.1U patent/CN206971439U/en active Active
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