CN103437441B - A kind of suspended absorber - Google Patents
A kind of suspended absorber Download PDFInfo
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- CN103437441B CN103437441B CN201310371552.9A CN201310371552A CN103437441B CN 103437441 B CN103437441 B CN 103437441B CN 201310371552 A CN201310371552 A CN 201310371552A CN 103437441 B CN103437441 B CN 103437441B
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Abstract
The invention belongs to noise elimination technique field, be specially a kind of suspended absorber, it comprises the convex sound absorption chamber surrounded by thin plate, the bottom in described sound absorption chamber is communicated with acoustic resonance chamber, bottom, separated by porose dividing plate between sound absorption chamber and acoustic resonance chamber, bottom, the top in sound absorption chamber arranges the cover plate with through hole; Thin plate inwall front between described sound absorption chamber inner cover plate and dividing plate arranges some layers of microwell plate, and gap between adjacent cells plate forms acoustic resonance chamber, and the gap between the nearest one deck microwell plate of thin plate inwall and its front forms acoustic resonance chamber.The present invention breaches the architectural feature of traditional sound absorber, sound absorption wall, and noise reduction is more outstanding, function is more stable, longer service life to adopt the noise reduction mode of microwell plate to make.
Description
Technical field
The invention belongs to noise elimination technique field, be specially a kind of suspended absorber.
Background technology
A kind of dispersion hangs on architectural space top, in order to reduce room noise or to improve the sound absorbing member of indoor tone quality.Suspended absorber is compared with the sound absorption material on chamber internal surface, and under same projected area, suspended absorber has higher sound absorption efficiency.This is because suspended absorber has larger effective absorption area (comprising the upper end face of suspended absorber, bottom surface and side); In addition, due to sound wave multiple reflections between the upper end face and building end face of sound absorber, thus by re-absorption effect, absorption is increased, improves sound absorption efficiency.Usually the most remarkable with the raising of middle and high frequency range sound absorption efficiency.Suspended absorber has that materials are few, lightweight, reduced investment, sound absorption efficiency are high, flexible arrangement, easy construction feature.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of suspended absorber, it breaches the architectural feature of traditional sound absorber, sound absorption wall, and noise reduction is more outstanding, function is more stable, longer service life to adopt the noise reduction mode of microwell plate to make.
For realizing above-mentioned technical purpose, scheme provided by the invention is: a kind of suspended absorber, comprise the convex sound absorption chamber surrounded by thin plate, the bottom in described sound absorption chamber is communicated with acoustic resonance chamber, bottom, separated by porose dividing plate between sound absorption chamber and acoustic resonance chamber, bottom, the top in sound absorption chamber arranges the cover plate with through hole; Thin plate inwall front between described cover plate and dividing plate arranges some layers of microwell plate, and gap between adjacent cells plate forms acoustic resonance chamber, and the gap between the nearest one deck microwell plate of thin plate inwall and its front forms acoustic resonance chamber.
And the microwell plate two ends in described sound absorption chamber contact the hole week of cover plate through hole and partition board hole respectively
And described microwell plate is that inverted trapezoidal is arranged along the vertical section of sound absorber.
And the thin plate outer wall front outside described sound absorption chamber arranges perforated plate.
And, filling sucting sound material between described thin plate outer wall and perforated plate.
And multiple described suspended absorber forms a sound absorption unit, and the gap location between each sound absorber in this sound absorption unit arranges board-like sound absorber.
And, described board-like sound absorber comprises thin plate, the front, two sides of this thin plate arranges some layers of microwell plate, and gap between adjacent cells plate forms acoustic resonance chamber, and the gap of the two sides of thin plate respectively and between the nearest one deck microwell plate in its front forms acoustic resonance chamber.
Acoustic frequency bandwidth of the present invention, sound transmission coefficient is low, and sound absorption coefficient and noise reduction coefficient temporarily surpass the advanced world level, and noise reduction is outstanding especially.Need for various different sound field spectra feature and noise reduction, its structure can be regulated, the sound absorption coefficient required for this sound field spectra.Unabsorbed sound wave can be made to form scattering, thus eliminate the reverberation in house.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the enlarged drawing of board-like sound absorber in Fig. 2.
Fig. 4 is the structural representation of embodiment two.
Fig. 5 is the structural representation of embodiment three.
Wherein, 1, thin plate, 2, sound absorption chamber, 3, acoustic resonance chamber, bottom, 4, dividing plate, 5, partition board hole, 6, cover plate, 7, cover plate through hole, 8, microwell plate, 9, acoustic resonance chamber, 10, perforated plate, 11, sound absorption material, 12, board-like sound absorber.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
The present embodiment provides a kind of suspended absorber, as shown in Figure 1, comprise the convex sound absorption chamber 2 surrounded by thin plate 1, the bottom in described sound absorption chamber 2 is communicated with acoustic resonance chamber 3, bottom, separated by porose dividing plate 4 between sound absorption chamber 2 and acoustic resonance chamber, bottom 3, the top in sound absorption chamber 2 arranges the cover plate 6 with through hole; Thin plate 1 inwall front between described cover plate 6 and dividing plate 4 arranges some layers of microwell plate 8, and gap between adjacent cells plate 8 forms acoustic resonance chamber 9, and the gap between the nearest one deck microwell plate 8 of thin plate 1 inwall and its front forms acoustic resonance chamber 9.
Further, microwell plate 8 two ends in above-mentioned sound absorption chamber 2 contact the hole week of cover plate through hole 7 and partition board hole 5 respectively.
Further, above-mentioned microwell plate 8 is that inverted trapezoidal is arranged along the vertical section of sound absorber.
Further, the thin plate 1 outer wall front outside above-mentioned sound absorption chamber 2 arranges perforated plate 10.
Further, filling sucting sound material 11 between above-mentioned thin plate 1 outer wall and perforated plate 10.
Further, as shown in Figure 2, multiple above-mentioned suspended absorber forms a sound absorption unit, and the gap location between each sound absorber in this sound absorption unit arranges board-like sound absorber 12.
Further, as shown in Figure 3, above-mentioned board-like sound absorber 12 comprises thin plate 1, the front, two sides of this thin plate 1 arranges some layers of microwell plate 8, gap between adjacent cells plate 8 forms acoustic resonance chamber 9, and the gap of the two sides of thin plate 1 respectively and between the nearest one deck microwell plate 8 in its front forms acoustic resonance chamber 9.
As shown in Figure 4 and Figure 5, it is square, trapezoidal etc. that sound absorber provided by the invention can also make cross section, meets actual needs.
The present invention is according to sounding board noise reduction principle, and the air carrying noise enters sound absorber by cover plate 6, and microwell plate is resonated, and changes the noise energy entrained by air into heat energy and scatters and disappears, reaching the object of noise elimination noise reduction.Acoustic resonance chamber, bottom 3 bottom sound absorber and the filling sucting sound material 11 of sound absorber outside can optimize sound absorption further except the effect of making an uproar.Board-like sound absorber 12 between each sound absorber is also utilize sounding board noise reduction principle to optimize acoustically effective further.
The major parameter of sound absorber:
1, average sound absorption coefficient--->=1.47;
2, average noise reduction coefficient--->=1.67;
3, sound sucting band---31.5 ~ 8000HZ;
4, indoor soundproof effect---reduce noise 10 ~ 12 decibels;
5, sound insulation factor--->=30 decibels;
6, application life---be more than ten times of traditional sound absorber;
7, material type---metal mold, plastic type, cardboard type;
8, installation form---lift, mount or shelve.
Noise reduction of the present invention is outstanding, function-stable, long service life, and price and traditional sound absorber, the wall that absorbs sound are similar, have high cost performance, have wide domestic and international market and development prospect.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvement or distortion, these improve or distortion also should be considered as protection scope of the present invention.
Claims (7)
1. a suspended absorber, comprise the convex sound absorption chamber surrounded by thin plate, it is characterized in that: the bottom in described sound absorption chamber is communicated with acoustic resonance chamber, bottom, is separated between sound absorption chamber and acoustic resonance chamber, bottom by porose dividing plate, and the top in sound absorption chamber arranges the cover plate with through hole; Thin plate inwall front between described cover plate and dividing plate arranges some layers of microwell plate, and gap between adjacent cells plate forms acoustic resonance chamber, and the gap between the nearest one deck microwell plate of thin plate inwall and its front forms acoustic resonance chamber.
2. a kind of suspended absorber according to claim 1, is characterized in that: the microwell plate two ends in described sound absorption chamber contact the hole week of cover plate through hole and partition board hole respectively.
3. a kind of suspended absorber according to claim 2, is characterized in that: described microwell plate is that inverted trapezoidal is arranged along the vertical section of sound absorber.
4. a kind of suspended absorber according to claim 1, is characterized in that: the thin plate outer wall front outside described sound absorption chamber arranges perforated plate.
5. a kind of suspended absorber according to claim 4, is characterized in that: filling sucting sound material between described thin plate outer wall and perforated plate.
6. according to any one suspended absorber described in claim 1 ~ 5, it is characterized in that: multiple described suspended absorber forms a sound absorption unit, and the gap location between each sound absorber in this sound absorption unit arranges board-like sound absorber.
7. a kind of suspended absorber according to claim 6, it is characterized in that: described board-like sound absorber comprises thin plate, the front, two sides of this thin plate arranges some layers of microwell plate, gap between adjacent cells plate forms acoustic resonance chamber, and the gap of the two sides of thin plate respectively and between the nearest one deck microwell plate in its front forms acoustic resonance chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371552.9A CN103437441B (en) | 2013-08-23 | 2013-08-23 | A kind of suspended absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310371552.9A CN103437441B (en) | 2013-08-23 | 2013-08-23 | A kind of suspended absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437441A CN103437441A (en) | 2013-12-11 |
| CN103437441B true CN103437441B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310371552.9A Expired - Fee Related CN103437441B (en) | 2013-08-23 | 2013-08-23 | A kind of suspended absorber |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106448647A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Steam or gas special effect silencer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1689548A1 (en) * | 1988-06-22 | 1991-11-07 | Le Elektrotekh Inst | Acoustic panel |
| CN2123564U (en) * | 1991-09-13 | 1992-12-02 | 王法源 | High-damped wide frequeney band sound absorption wall |
| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| CN202248342U (en) * | 2011-09-07 | 2012-05-30 | 南京常荣噪声控制环保工程有限公司 | Ultra-microporous sound absorber |
| CN203440934U (en) * | 2013-08-23 | 2014-02-19 | 王法源 | Suspended absorber |
-
2013
- 2013-08-23 CN CN201310371552.9A patent/CN103437441B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1689548A1 (en) * | 1988-06-22 | 1991-11-07 | Le Elektrotekh Inst | Acoustic panel |
| CN2123564U (en) * | 1991-09-13 | 1992-12-02 | 王法源 | High-damped wide frequeney band sound absorption wall |
| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| CN202248342U (en) * | 2011-09-07 | 2012-05-30 | 南京常荣噪声控制环保工程有限公司 | Ultra-microporous sound absorber |
| CN203440934U (en) * | 2013-08-23 | 2014-02-19 | 王法源 | Suspended absorber |
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| CN103437441A (en) | 2013-12-11 |
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