CN206267335U - High frequency sound absorber - Google Patents
High frequency sound absorber Download PDFInfo
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- CN206267335U CN206267335U CN201621167005.4U CN201621167005U CN206267335U CN 206267335 U CN206267335 U CN 206267335U CN 201621167005 U CN201621167005 U CN 201621167005U CN 206267335 U CN206267335 U CN 206267335U
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- groove
- backboard
- support plate
- sound absorption
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Abstract
The utility model is related to a kind of high frequency sound absorber, including base plate, top board, backboard and sound absorption post, the rear end of the base plate is connected with the bottom of the backboard, the top board rear end is connected with the top of the backboard, the sound absorption post is embedded in the caulking groove surrounded in the base plate, backboard and top board, the front interval of the sound absorption post offers the first groove, the second groove and the 3rd groove, the depth of first groove is more than the depth of second groove, the depth of the depth more than the 3rd groove of second groove.The sound wave of different frequency range is absorbed by the groove of different depth, and is not intended to absorbed low-frequency sound wave, directly through sound absorption post and backboard, high frequency noise is effectively absorbed so as to reach, reduce the effect of room reverberation echo.
Description
Technical field
The utility model is related to architectural acoustics field, more particularly to a kind of high frequency sound absorber.
Background technology
Standing wave is the formidable enemy of acoustic surrounding, especially particularly evident in the influence of small space standing internal wave, the original that standing wave is produced
Because being sound roundtrip between metope, back wave is touched together, and produces enhancing or the effect for weakening, last wow flutter
Become vibration in situ, the ripple that will not be moved, cause room reverberation echo, so, it is necessary to using for height in architectural acoustics
The sound absorption product of frequency noise.
The content of the invention
Based on this, it is necessary to for the defect of prior art, there is provided a kind of high frequency sound absorber, can effectively absorb high frequency and make an uproar
Sound, reduces room reverberation echo.
Its technical scheme is as follows：
A kind of high frequency sound absorber, including base plate, top board, backboard and sound absorption post, the rear end of the base plate and the backboard
Bottom is connected, and the top board rear end is connected with the top of the backboard, and the sound absorption post is embedded in the base plate, backboard and top board
In the caulking groove for surrounding, the front interval of the sound absorption post offers the first groove, the second groove and the 3rd groove, and described first is recessed
The depth of groove is more than the depth of second groove, the depth of the depth more than the 3rd groove of second groove.
Its further technical scheme is as follows：
The front of the backboard is provided with the first support plate, the second support plate towards sound absorption post protrusion, and the back side of the sound absorption post sets
There are the first draw-in groove, the second draw-in groove for being matched with first support plate, the second support plate respectively, first support plate is embedded described
In one draw-in groove, second support plate is embedded in second draw-in groove.
The backboard, the first support plate and the second support plate are formed in one structure.
The front of the sound absorption post offers two first grooves, two second grooves and two the described 3rd
Groove, two the 3rd grooves are separately positioned on the positive both sides of sound absorption post, and two the second grooves are separately positioned on sound absorption post
Positive middle part, two the first grooves are separately positioned between different second grooves and different 3rd grooves, first groove,
Second groove and the 3rd groove extend to its bottom by the top of sound absorption post.
The depth of first groove is 20mm-400mm, and the depth of second groove is 10mm-200mm, described the
The depth of three grooves is 5mm-100mm.
The width of first groove is 30mm-600mm, and the width of second groove is 30mm-600mm, described the
The width of three grooves is 30mm-600mm.
The base plate, top board, backboard and the first support plate, the second support plate are EPS plate of material, and the base plate and top board are distinguished
With backboard and the first support plate, the second support plate hot-melt adhesive paste.
The outer surface of the backboard is all covered with GRG sprayed coatings.
The sound absorption post is Polyurethane sound absorption cotton post, and the sound absorption post is rectangle column, and its front both sides is provided with chamfering.
The advantage or principle to preceding solution are illustrated below：
Above-mentioned high frequency sound absorber, sound absorption post is embedded in the caulking groove surrounded in the base plate, backboard and top board, and directly existed
The absorb sound front interval of post opens up the first groove, the second groove and the 3rd groove, and simple structure is easy to process, and described the
The depth of one groove is more than the depth of second groove, and the depth of second groove is more than the depth of the 3rd groove,
The sound wave of different frequency range is absorbed by the groove of different depth, and is not intended to absorbed low-frequency sound wave, directly through sound absorption post
And backboard, high frequency noise is effectively absorbed so as to reach, reduce the effect of room reverberation echo.
Brief description of the drawings
Fig. 1 is the structural representation of high frequency sound absorber described in the utility model embodiment；
Fig. 2 is the transverse sectional view of Fig. 1；
Fig. 3 is the perspective diagram of high frequency sound absorber described in the utility model embodiment；
The schematic diagram of high frequency sound absorber when Fig. 4 is unassembled sound absorption post.
Description of reference numerals：
10th, base plate, 20, top board, 30, sound absorption post, the 310, first groove, the 320, second groove, the 330, the 3rd groove, 40,
Backboard, the 410, first support plate, the 420, second support plate.
Specific embodiment
As Figure 1-4, a kind of high frequency sound absorber, including base plate 10, top board 20, backboard 40 and sound absorption post 30, the bottom
The rear end of plate 10 is connected with the bottom of the backboard 40, and the rear end of the top board 20 is connected with the top of the backboard 40, the suction
Sound column 30 is embedded in the caulking groove surrounded in the base plate 10, backboard 40 and top board 20, and the front interval of the sound absorption post 30 opens up
The depth for having the first groove 310, the second groove 320 and the 3rd groove 330, first groove 310 is more than second groove
320 depth, the depth of the depth more than the 3rd groove 330 of second groove 320.
Sound absorption post 30 is embedded in the caulking groove surrounded in the base plate 10, backboard 40 and top board 20, and directly in sound absorption post
30 front interval opens up the first groove 310, the second groove 320 and the 3rd groove 330, and simple structure is easy to process, Er Qiesuo
State the depth of the depth of the first groove 310 more than second groove 320, the depth of second groove 320 is more than described the
The depth of three grooves 330, the sound wave of different frequency range is absorbed by the groove of different depth, and is not intended to absorbed all-bottom sound
Ripple, directly through sound absorption post 30 and backboard 40, high frequency noise is effectively absorbed so as to reach, and reduces the effect of room reverberation echo.
The high frequency sound absorber is mainly used in private movie theatre, qin room, parlor etc..
The front of the backboard 40 is provided with the first support plate 410, the second support plate 420, the sound absorption towards the sound absorption protrusion of post 30
The back side of post 30 is provided with the first draw-in groove, the second draw-in groove for being matched with first support plate 410, the second support plate 420 respectively, described
One support plate 410 is embedded in first draw-in groove, and second support plate 420 is embedded in second draw-in groove.The is set simultaneously
One support plate 410, the second support plate 420 can strengthen the supporting role to the post 30 that absorbs sound, and sound absorption post 30 is firmly stood on described
In caulking groove, it is to avoid sound absorption post 30 is collapsed.The backboard 40, the first support plate 410 and the second support plate 420 are formed in one structure, plus
Work is simple, compensate for the defect that the shaping of tradition wood board splicing has leak.When the front refers to high frequency sound absorber and uses
In face of the side of sound source, otherwise it is then reverse side.
The front of the sound absorption post 30 offers two first grooves, 310, two second grooves 320 and two
3rd groove 330, two the 3rd grooves 330 are separately positioned on the positive both sides of sound absorption post 30, two the second grooves 320
Be separately positioned on the positive middle part of sound absorption post 30, two the first grooves 310 be separately positioned on different second grooves 320 from it is different
Between 3rd groove 330, first groove 310, the second groove 320 and the 3rd groove 330 prolong by the top of sound absorption post 30
Extend its bottom.So setting can preferably absorb the sound wave of different frequency range, make the high-frequency energy of the altitude range of sound absorption post 30 more preferable
Ground is absorbed, and first groove 310, the second groove 320 and the 3rd groove 330 interval are evenly arranged, and is arranged so as to sound absorption effect
Fruit more preferably, and meets Product Process design requirement, increases the intensity and aesthetics of sound absorption post 30.
The depth of first groove 310 is 20mm-400mm, and the depth of second groove 320 is 10mm-200mm,
The depth of the 3rd groove 330 is 5mm-100mm.According to the difference of sound dispersion wavelength, using the groove pair of different depth
The sound wave of different frequency range is absorbed sound, and so as to realize the absorption of the sound wave to more wide-band, is preferably reduced room reverberation and is made an uproar
Sound.
The width of first groove 310 is 30mm-600mm, and the width of second groove 320 is 30mm-600mm,
The width of the 3rd groove 330 is 30mm-600mm.The a width of 1200mm*300mm of * high of sound absorption post 30 described in the present embodiment,
The high frequency sound absorber is can be used alone in small space, in large space, can be used multiple high frequency sound absorbers
It is stitched together and uses, room is bigger, can spell more multiple, reaches more preferable acoustically effective.
The base plate 10, top board 20, the support plate 410 of backboard 40 and first, the second support plate 420 are EPS plate of material, the bottom
Plate 10 and top board 20 respectively with the support plate 410 of backboard 40 and first, the hot-melt adhesive paste of the second support plate 420.The outer surface covering of backboard 40
There are GRG sprayed coatings.The sound absorption post 30 is Polyurethane sound absorption cotton post, and the sound absorption post 30 is rectangle column, and its front both sides sets
There is chamfering.The high frequency sound absorber absorbs sound cotton as base material with high density EPS and Polyurethane, and the base material has a light weight, easy processing into
The characteristics of shape, simulated by acoustic software and calculate required figure, backboard 40, top board is processed using numerical control machine cutting technique
20th, base plate 10 and sound absorption post 30, be bonded together for backboard 40, top board 20 and base plate 10 by the molten technology of reusable heat, finally to backboard
40 surfaces carry out covering high intensity GRG spraying it is dry after, sound absorption post 30 is embedded in backboard 40.GRG sprayed coatings make the high frequency sound absorber
With high intensity, high rigidity and good pliability, cracky, deformation and do not ftracture.The high frequency sound absorber fire protecting performance is good, weight
Amount only has 1/3rd of wood-based product, and Form aldehyde release is low, can meet various environment for building sound.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that common for this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of high frequency sound absorber, it is characterised in that including base plate, top board, backboard and sound absorption post, the rear end of the base plate and institute
The bottom connection of backboard is stated, the top board rear end is connected with the top of the backboard, the sound absorption post is embedded in the base plate, the back of the body
In the caulking groove that plate and top board are surrounded, the front interval of the sound absorption post offers the first groove, the second groove and the 3rd groove, institute
State the depth of the depth more than second groove of the first groove, the depth of the depth more than the 3rd groove of second groove
Degree.
2. high frequency sound absorber as claimed in claim 1, it is characterised in that the front of the backboard is provided with towards sound absorption post protrusion
First support plate, the second support plate, the back side of the sound absorption post are provided with the first card for being matched with first support plate, the second support plate respectively
Groove, the second draw-in groove, first support plate are embedded in first draw-in groove, and second support plate is embedded in second draw-in groove
It is interior.
3. high frequency sound absorber as claimed in claim 2, it is characterised in that the backboard, the first support plate and the second support plate are
Forming structure.
4. the high frequency sound absorber as described in claim any one of 1-3, it is characterised in that the front of the sound absorption post offers two
Individual first groove, two second grooves and two the 3rd grooves, two the 3rd grooves are separately positioned on sound absorption
The positive both sides of post, two the second grooves are separately positioned on the positive middle part of sound absorption post, and two the first grooves are respectively provided with
Between different second grooves and different 3rd grooves, first groove, the second groove and the 3rd groove are by sound absorption post
Top extends to its bottom.
5. high frequency sound absorber as claimed in claim 4, it is characterised in that the depth of first groove is 20mm-400mm,
The depth of second groove is 10mm-200mm, and the depth of the 3rd groove is 5mm-100mm.
6. high frequency sound absorber as claimed in claim 5, it is characterised in that the width of first groove is 30mm-600mm,
The width of second groove is 30mm-600mm, and the width of the 3rd groove is 30mm-600mm.
7. high frequency sound absorber as claimed in claim 2 or claim 3, it is characterised in that the base plate, top board, backboard and the first support plate,
Second support plate is EPS plate of material, the base plate and top board respectively with backboard and the first support plate, the second support plate hot-melt adhesive paste.
8. high frequency sound absorber as claimed in claim 2 or claim 3, it is characterised in that the outer surface of the backboard is all covered with GRG sprays
Coating.
9. high frequency sound absorber as claimed in claim 2 or claim 3, it is characterised in that the sound absorption post is that Polyurethane absorbs sound cotton post, institute
It is rectangle column to state sound absorption post, and its front both sides is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167005.4U CN206267335U (en) | 2016-11-01 | 2016-11-01 | High frequency sound absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621167005.4U CN206267335U (en) | 2016-11-01 | 2016-11-01 | High frequency sound absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206267335U true CN206267335U (en) | 2017-06-20 |
Family
ID=59039165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621167005.4U Active CN206267335U (en) | 2016-11-01 | 2016-11-01 | High frequency sound absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206267335U (en) |
-
2016
- 2016-11-01 CN CN201621167005.4U patent/CN206267335U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 511450 No. 12 Huashan Road, Shi Lou Town, Panyu District, Guangzhou, Guangdong. Patentee after: Guangzhou sound doctor acoustic technique Co., Ltd Address before: 511450 Mount Huangshan Road, Dalong industrial area, Dalong street, Guangzhou, Guangdong, 4, No. 4 Patentee before: Guangzhou sound doctor acoustic technique Co., Ltd |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High frequency acoustic absorber Effective date of registration: 20190724 Granted publication date: 20170620 Pledgee: China Co truction Bank Corp Guangzhou Yuexiu branch Pledgor: Guangzhou sound doctor acoustic technique Co., Ltd Registration number: 2019440000271 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220526 Granted publication date: 20170620 Pledgee: China Co. truction Bank Corp Guangzhou Yuexiu branch Pledgor: GUANGZHOU SOUNDBOX ACOUSTIC TECH CO.,LTD. Registration number: 2019440000271 |