CN103669767A - Decorative composite sound absorption structure - Google Patents
Decorative composite sound absorption structure Download PDFInfo
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- CN103669767A CN103669767A CN201210556145.0A CN201210556145A CN103669767A CN 103669767 A CN103669767 A CN 103669767A CN 201210556145 A CN201210556145 A CN 201210556145A CN 103669767 A CN103669767 A CN 103669767A
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- sound absorption
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Abstract
The invention discloses a decorative composite sound absorption structure which is formed by a resonance sound absorption body, a polyester fiber sound absorption body and installing fasteners. The resonance sound absorption body is of a framework structure made of L-shaped steel section bars, the obverse side of the resonance sound absorption body is provided with a steel plate A, the reverse side of the resonance sound absorption body is provided with a steel plate B, punched steel plates are installed on the periphery of the resonance sound absorption body, glass wool cloth is attached to the interiors of the punched steel plates, and the framework structure is filled with porous sound absorption materials; the polyester fiber sound absorption body is in a three-dimensional pentagonal shape, made of polyester fiber sound absorption materials and filled with low-volume-weight polyester fiber sound absorption cotton, the four edges of the polyester fiber sound absorption body are embedded in the edges of the framework structure made of the L-shaped steel section bars, and the polyester fiber sound absorption body is connected with the framework structure through crosslinking agents; the framework structure made of the L-shaped steel section bars is installed through the installing fasteners, and cavities are reserved between the framework structure and a building envelope. The decorative composite sound absorption structure has the advantage of a high high-frequency sound absorption coefficient of the porous sound absorption materials, and has better sound adsorption properties for low frequency, and the purpose of full-frequency sound absorption can be achieved; the decorative composite sound absorption structure is good in decorative performance and environmental suitability and capable of saving the sound absorption material arrangement space, and the installation process is simple and convenient.
Description
Technical field
The present invention relates to a kind of building acoustics technology, especially can reduce room noise or improve a kind of decoration compound sound-absorption structural of indoor tone quality.
Background technology
Sound absorption is a kind of effective blocking-up and the measure that reduces acoustic propagation.Use can absorb material or the wall of structural ornament in machine room of acoustic energy, or hang suspended absorber in the interior space, the noise can absorption of noise source sending is mapped to part acoustic energy above, reflected sound is weakened, the just direct sound that recipient at this time hears and the reverberation sound having weakened, reduce OA overall noise level.In building acoustics engineering and noise control engineering, sound absorption is to reduce the Main Means that reverberation reduces noise sound level simultaneously.
Different materials has different sound absorption coefficient α, and all, between 0 and 1, namely all reflections, also can not all absorb.Any material all has certain sound absorbing capabilities, generally the material of sound absorption coefficient α >=0.2, structure is referred to as to sound absorption material or sound absorption construction, generally the material of sound absorption coefficient α >=0.8, structure is referred to as to strong sound absorption material or strong sound absorption construction.
Sound absorption coefficient is a physical quantity relevant with frequency, and any sound absorption material all can not absorb by full range, and sound absorption material all has different sound absorbing capabilities to the absorption of the different frequency range of sound wave.According to sound absorption coefficient, detect regulation and stipulation: test frequency scope octave is from 125～4000HZ, and the test sound absorption coefficient of totally 6 frequency bands, comprises 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz.Said sound absorption coefficient α means the arithmetic mean of instantaneous value of each octave sound absorption coefficient of this sound absorption material above.Although porous absorption material has very high sound absorption coefficient.But, because the wavelength of low-frequency sound wave is longer, penetrate thing easily, therefore porous absorption material to the assimilation ratio of low frequency incident acoustic wave far below the assimilation ratio to high band incident acoustic wave.Along with the development of acoustic technique, people have had further understanding to the impact of low-frequency noise, the absorptance high-frequency absorption of low-frequency noise to improving indoor tone quality, reduce noise and have more importance.In general, resonance sound-absorbing material use thin-slab structure itself produces vibration under the effect of sound wave, during vibration plate distortion and with frame construction frictional dissipation, sound energy consumption.When the vibration frequency of frequency of sound wave and thin plate matches, resonate, sound energy consumption is maximum.And thin-slab structure formant is in low-frequency range, low frequency is had to good sound absorption characteristics.
Porous absorption material, resonance sound-absorbing material are set respectively and can meet the requirement that full range absorbs.But in Practical Project, the space that sound absorption material often can be set is less, generally sound absorption material is ornamental poor, is difficult to meet design requirement.
Summary of the invention
In order to overcome existing sound absorption material, can not meet the requirement that full range absorbs, ornamental poor deficiency, the invention provides a kind of decoration compound sound-absorption structural, this decoration compound sound-absorption structural not only has advantages of that porous absorption material high frequency sound absorption coefficient is high, meanwhile, low frequency is had to good sound absorption characteristics, and decorate properties, good environmental adaptability, save sound absorption material space is set, mounting process is easy.
The technical solution adopted for the present invention to solve the technical problems is: decorate compound sound-absorption structural and be comprised of resonance absorber, polyester fiber sound absorber, fastener for installing.The frame construction that described resonance absorber is made by L-type steel profile, front arranges A steel plate, and the back side arranges B steel plate, and surrounding is installed punched steel plate, pastes glass wool cloth, filling porous sound absorption material in frame construction in punched steel plate.The three-dimensional pentagon moulding that described polyester fiber sound absorber is made by polyester fiber sound absorption material, the sound absorption of the low unit weight polyester fiber of interior filling is cotton, and the low unit weight polyester fiber cotton high frequency acoustically effective that absorbs sound is good, and chip can not be scattered.Four limits embed on L-type steel profile frame construction limit, by glue crosslinking agent, connect; L-type steel profile frame construction is installed by fastener for installing, and leaves cavity between architectural exterior-protecting construction.Polyester fiber sound absorber is as architectural surface, good decorating effect.Polyester fiber acoustical board has the sound absorption characteristics of porous material, and sound absorption coefficient increases with the raising of frequency.Resonance absorber, in the inside of polyester fiber sound absorber, neither affects the sound absorption of high frequency, and the low-frequency sound wave that front is passed through to polyester fiber sound absorber can absorb again effectively.The thickness of the A steel plate of described resonance absorber is less than the thickness of B steel plate, and their thickness is separately determined according to the frequency spectrum that will absorb.The frequency of the thinner formant of steel plate thickness of resonance absorber is higher, therefore the frequency that the A steel plate of resonance absorber absorbs higher than B steel plate, is decorated the successive that compound sound-absorption structural forms by high frequency tremendously low frequency, absorbs, and reaches the acoustically effective that full range absorbs.And between architectural exterior-protecting construction, leave cavity and can guarantee that the vibration deformation of B steel plate is unaffected.Resonance absorber surrounding is installed punched steel plate, and the porous absorption material that interior filling is coated with by glass wool cloth, makes sound wave enter from the side porous layer, plays the effect of another additional sound absorber.The three-dimensional pentagon moulding that described polyester fiber sound absorber is used die mould technique to make by polyester fiber sound absorption material, polyester fiber acoustical board is positive forms the form of structure of plane or various concavo-convex moulding.Polyester fiber acoustical board has good physical and mechanical property, and release and the fireproof performance of hazardous substances all comply with the national standard requirements, and after light weight, the destruction that is hit, can not produce fragment or fall, and can curve curve form, meets the requirement of decorating with the high-grade hall.The described three-dimensional pentagon moulding with various patterns that polyester fiber sound absorber is made by the polyester fiber acoustical board of multiple color and texture.Described fastener for installing is directly installed or is arranged on architectural exterior-protecting construction by lightgage steel joist.
The invention has the beneficial effects as follows not only have advantages of that porous absorption material high frequency sound absorption coefficient is high, meanwhile, low frequency is had to good sound absorption characteristics, can reach the object of full-frequency sound absorption.And decorate properties, good environmental adaptability, to save sound absorption material space is set, mounting process is easy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the vertical section constructional drawing of decorating compound sound-absorption structural embodiment.
Fig. 2 is the constructional drawing of facing of decorating compound sound-absorption structural embodiment.
1. resonance absorbers in figure, 2. polyester fiber sound absorber, 3. fastener for installing, 4.L shaped steel section bar, 5.A steel plate, 6.B steel plate, 7. punched steel plate, 8. glass wool cloth, 9. porous absorption material, 10. polyester fiber sound absorption is cotton, 11. polyester fiber acoustical boards, 12. lightgage steel joists, 13. architectural exterior-protecting constructions.
In Fig. 1,2 illustrated embodiments, decorate compound sound-absorption structural and formed by resonance absorber (1), polyester fiber sound absorber (2), fastener for installing (3).The frame construction that described resonance absorber (1) is made by L-type steel profile (4), front arranges A steel plate (5), and the back side arranges B steel plate (6), and surrounding is installed punched steel plate (7), in punched steel plate (7), paste glass wool cloth (8), filling porous sound absorption material (9) in frame construction; The three-dimensional pentagon moulding that described polyester fiber sound absorber (2) is made by polyester fiber sound absorption material, the low unit weight polyester fiber sound absorption of interior filling cotton (10), four limits embed on frame construction limit, by glue crosslinking agent, connect; L-type steel profile frame construction (4) is installed by fastener for installing (3).The thickness of the A steel plate (5) of described resonance absorber (1) is less than the thickness of B steel plate (6), and their thickness is separately determined according to the frequency spectrum that will absorb.The three-dimensional pentagon moulding that described polyester fiber sound absorber (2) is used die mould technique to make by polyester fiber sound absorption material, polyester fiber sound absorber (2) is positive forms the form of structure of plane or various concavo-convex moulding.Described polyester fiber sound absorber (2) is the three-dimensional pentagon moulding with various patterns of being made by the polyester fiber acoustical board (11) of multiple color and texture.Described fastener for installing (3) is directly installed or is arranged on architectural exterior-protecting construction (13) by lightgage steel joist (12).
Should be appreciated that in not departing from the scope of the present invention, can make multiple change to above-described embodiment.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a decoration compound sound-absorption structural is comprised of resonance absorber, polyester fiber sound absorber, fastener for installing, it is characterized in that: the frame construction that described resonance absorber is made by L-type steel profile, front arranges A steel plate, the back side arranges B steel plate, surrounding is installed punched steel plate, in punched steel plate, paste glass wool cloth, filling porous sound absorption material in frame construction; The three-dimensional pentagon moulding that described polyester fiber sound absorber is made by polyester fiber sound absorption material, the low unit weight polyester fiber sound absorption of interior filling is cotton, and four limits embed on L-type steel profile frame construction limit, by glue crosslinking agent, connect; L-type steel profile frame construction is installed by fastener for installing, and leaves cavity between architectural exterior-protecting construction.
2. decoration compound sound-absorption structural according to claim 1, is characterized in that: the thickness of the A steel plate of described resonance absorber is less than the thickness of B steel plate, and their thickness is separately determined according to the frequency spectrum that will absorb.
3. decoration compound sound-absorption structural according to claim 1, is characterized in that: described polyester fiber sound absorber is the three-dimensional pentagon moulding with various patterns of being made by the polyester fiber acoustical board of multiple color and texture.
4. decoration compound sound-absorption structural according to claim 1, is characterized in that: the three-dimensional pentagon moulding that described polyester fiber sound absorber is used die mould technique to make by polyester fiber sound absorption material, the positive form of structure that forms plane or various concavo-convex moulding.
5. decoration compound sound-absorption structural according to claim 1, is characterized in that: described fastener for installing is directly installed or is arranged on architectural exterior-protecting construction by lightgage steel joist.
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| CN201210556145.0A CN103669767B (en) | 2012-12-20 | 2012-12-20 | Decorative composite sound absorption structure |
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| CN201210556145.0A CN103669767B (en) | 2012-12-20 | 2012-12-20 | Decorative composite sound absorption structure |
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| CN103669767A true CN103669767A (en) | 2014-03-26 |
| CN103669767B CN103669767B (en) | 2015-11-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485096A (en) * | 2014-12-09 | 2015-04-01 | 国家电网公司 | Noise reduction sound absorption layer |
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| JP2001265357A (en) * | 2000-03-23 | 2001-09-28 | Kam:Kk | Sound absorbing member |
| CN201229772Y (en) * | 2008-07-25 | 2009-04-29 | 恩沛音响设备(上海)有限公司 | Sound effect board for thin film resonance |
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| CN201780778U (en) * | 2010-08-27 | 2011-03-30 | 张宇 | Multi-module resistance composite sound insulating board |
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| CN202492941U (en) * | 2012-03-16 | 2012-10-17 | 厦门嘉达声学技术工程有限公司 | Suspended absorber |
| CN203049995U (en) * | 2012-12-20 | 2013-07-10 | 厦门嘉达声学技术工程有限公司 | Decorative compound sound absorption structure |
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2012
- 2012-12-20 CN CN201210556145.0A patent/CN103669767B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001265357A (en) * | 2000-03-23 | 2001-09-28 | Kam:Kk | Sound absorbing member |
| CN101533638A (en) * | 2008-05-04 | 2009-09-16 | 国网直流工程建设有限公司 | Sound absorber with resonator |
| CN201229772Y (en) * | 2008-07-25 | 2009-04-29 | 恩沛音响设备(上海)有限公司 | Sound effect board for thin film resonance |
| CN201665927U (en) * | 2009-04-02 | 2010-12-08 | 厦门嘉达环保建造工程有限公司 | Low frequency damping and sound insulation structure |
| DE202010010269U1 (en) * | 2010-07-05 | 2010-10-14 | Strähle, Paul | Absorber element with textile surface |
| CN101944357A (en) * | 2010-08-27 | 2011-01-12 | 张宇 | Multi-module impedance compound sound insulation plate and manufacturing method thereof |
| CN201780778U (en) * | 2010-08-27 | 2011-03-30 | 张宇 | Multi-module resistance composite sound insulating board |
| CN102298925A (en) * | 2011-09-08 | 2011-12-28 | 周国柱 | Composite sound-absorbing structure |
| CN202492941U (en) * | 2012-03-16 | 2012-10-17 | 厦门嘉达声学技术工程有限公司 | Suspended absorber |
| CN203049995U (en) * | 2012-12-20 | 2013-07-10 | 厦门嘉达声学技术工程有限公司 | Decorative compound sound absorption structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485096A (en) * | 2014-12-09 | 2015-04-01 | 国家电网公司 | Noise reduction sound absorption layer |
| CN104485096B (en) * | 2014-12-09 | 2018-03-30 | 国网浙江省电力公司 | A kind of noise reduction absorbent treatment |
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| CN103669767B (en) | 2015-11-04 |
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