CN103669767B - Decorative composite sound absorption structure - Google Patents
Decorative composite sound absorption structure Download PDFInfo
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- CN103669767B CN103669767B CN201210556145.0A CN201210556145A CN103669767B CN 103669767 B CN103669767 B CN 103669767B CN 201210556145 A CN201210556145 A CN 201210556145A CN 103669767 B CN103669767 B CN 103669767B
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Abstract
The present invention discloses a kind of decorative composite sound absorption structure, is made up of resonance absorber, polyester fiber sound absorber, fastener for installing.The frame construction that described resonance absorber is made up of L-type steel profile, front arranges A steel plate, and the back side arranges B steel plate, and surrounding installs punched steel plate, pastes glass wool cloth, filling porous sound absorption material in frame construction in punched steel plate; Load the sound absorption of low unit weight polyester fiber in the three-dimensional pentagon moulding that described polyester fiber sound absorber is made up of polyester fiber sound absorption material cotton, four limits embed on L-type steel profile frame construction limit, are connected by glue crosslinking agent; L-type steel profile frame construction is installed by fastener for installing, and leaves cavity between architectural exterior-protecting construction.Not only there is the advantage that porous absorption material high frequency sound absorption coefficient is high, meanwhile, have good sound absorption characteristics to low frequency, the object of full-frequency sound absorption can be reached.And decorate properties, good environmental adaptability, save sound absorption material installation space, mounting process is easy.
Description
Technical field
The present invention relates to a kind of building acoustics technology, especially can reduce room noise or improve a kind of decorative composite sound absorption structure of indoor tone quality.
Background technology
Sound absorption is a kind of effective blocking-up and the measure reducing acoustic propagation.Use material or the structural ornament wall in machine room that can absorb acoustic energy, or hang suspended absorber in the interior space, part acoustic energy above can be mapped to by the noise that sends of absorption of noise source, reflected sound is weakened, the just direct sound that recipient at this time hears and the reverberation sound weakened, make OA overall noise level reduce.In building acoustics engineering and noise control engineering, sound absorption reduces the Main Means that reverberation reduces noise sound level simultaneously.
Different materials has different sound absorption coefficient α, all between 0 and 1, namely all can not reflect, 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 sound absorption material or sound absorption construction, generally the material of sound absorption coefficient α >=0.8, structure is referred to as 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.Specify according to sound absorption coefficient inspection criterion: test frequency scope octave is from 125 ~ 4000HZ, 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, can 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, the impact of people on low-frequency noise has had further understanding, 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 under the effect of sound wave itself produce vibration, during vibration plate distortion and with frame construction frictional dissipation, sound energy consumption.Resonate when the vibration frequency of frequency of sound wave and thin plate matches, sound energy consumption is maximum.And thin-slab structure formant is in low-frequency range, there are good sound absorption characteristics to low frequency.
Porous absorption material is set respectively, resonance sound-absorbing material can meet full range absorb requirement.But in Practical Project, the space that often can arrange sound absorption material is less, general sound absorption material ornamental poor, is difficult to meet design requirement.
Summary of the invention
The requirement of full range absorption can not be met in order to overcome existing sound absorption material, ornamental poor deficiency, the invention provides a kind of decorative composite sound absorption structure, this decorative composite sound absorption structure not only has the high advantage of porous absorption material high frequency sound absorption coefficient, meanwhile, there are good sound absorption characteristics to low frequency, and decorate properties, good environmental adaptability, save sound absorption material installation space, mounting process is easy.
The technical solution adopted for the present invention to solve the technical problems is: decorative composite sound absorption structure is made up of resonance absorber, polyester fiber sound absorber, fastener for installing.The frame construction that described resonance absorber is made up of L-type steel profile, front arranges A steel plate, and the back side arranges B steel plate, and surrounding installs 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 up of polyester fiber sound absorption material, the sound absorption of interior filling low unit weight polyester fiber is cotton, and low unit weight polyester fiber absorbs sound cotton high frequency acoustically effective well, and can not be scattered chip.Four limits embed on L-type steel profile frame construction limit, are connected by glue crosslinking agent; L-type steel profile frame construction is installed by fastener for installing, and leaves cavity between architectural exterior-protecting construction.Polyester fiber sound absorber 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 low-frequency sound wave front being 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 respective thickness is 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 is higher than B steel plate, and decorative composite sound absorption structure is formed and absorbed by the successive of high frequency tremendously low frequency, reaches the acoustically effective that full range absorbs.And leave cavity between architectural exterior-protecting construction and can ensure that the vibration deformation of B steel plate is unaffected.Resonance absorber surrounding installs punched steel plate, and interior filling, by the porous absorption material of glass wool cloth bag quilt, makes sound wave can enter porous layer from the side, plays the effect of another additional sound absorber.The three-dimensional pentagon moulding that described polyester fiber sound absorber uses die mould technique to make by polyester fiber sound absorption material, polyester fiber acoustical board front 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 can not produce fragment or fall, can curve curve form, meet the requirement of decorating with the high-grade hall after light weight, the destruction that is hit.The described three-dimensional pentagon moulding with various pattern that polyester fiber sound absorber is made up of 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 that not only there is the advantage that porous absorption material high frequency sound absorption coefficient is high, meanwhile, have good sound absorption characteristics to low frequency, the object of full-frequency sound absorption can be reached.And decorate properties, good environmental adaptability, save sound absorption material installation space, 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 decorative composite sound absorption structure embodiment.
Fig. 2 be decorative composite sound absorption structure embodiment face constructional drawing.
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, decorative composite sound absorption structure is made up of resonance absorber (1), polyester fiber sound absorber (2), fastener for installing (3).The frame construction that described resonance absorber (1) is made up of L-type steel profile (4), front arranges A steel plate (5), and the back side arranges B steel plate (6), and surrounding installs punched steel plate (7), glass wool cloth (8) is pasted, filling porous sound absorption material (9) in frame construction in punched steel plate (7); The three-dimensional pentagon moulding that described polyester fiber sound absorber (2) is made up of polyester fiber sound absorption material, the low unit weight polyester fiber sound absorption cotton (10) of interior filling, four limits embed on frame construction limit, are connected by glue crosslinking agent; 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 respective thickness is determined according to the frequency spectrum that will absorb.The three-dimensional pentagon moulding that described polyester fiber sound absorber (2) uses die mould technique to make by polyester fiber sound absorption material, polyester fiber sound absorber (2) front 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 pattern of being made up of 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 without departing from the scope of the present invention, multiple change can be made to above-described embodiment.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a decorative composite sound absorption structure, be made up of resonance absorber, polyester fiber sound absorber, fastener for installing, it is characterized in that: the frame construction that described resonance absorber is made up of L-type steel profile, front arranges A steel plate, the back side arranges B steel plate, surrounding installs 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 up of polyester fiber sound absorption material, the sound absorption of interior filling low unit weight polyester fiber is cotton, and four limits embed on L-type steel profile frame construction limit, are connected by glue crosslinking agent; L-type steel profile frame construction is installed by fastener for installing, and leaves cavity between architectural exterior-protecting construction.
2. decorative composite sound absorption structure 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 respective thickness is determined according to the frequency spectrum that will absorb.
3. decorative composite sound absorption structure according to claim 1, is characterized in that: described polyester fiber sound absorber is the three-dimensional pentagon moulding with various pattern of being made up of the polyester fiber acoustical board of multiple color and texture.
4. decorative composite sound absorption structure according to claim 1, is characterized in that: the three-dimensional pentagon moulding that described polyester fiber sound absorber uses die mould technique to make by polyester fiber sound absorption material, and front forms the form of structure of plane or various concavo-convex moulding.
5. decorative composite sound absorption structure 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 CN103669767A (en) | 2014-03-26 |
| CN103669767B true CN103669767B (en) | 2015-11-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| 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 |
| CN101533638A (en) * | 2008-05-04 | 2009-09-16 | 国网直流工程建设有限公司 | Sound absorber with resonator |
| DE202010010269U1 (en) * | 2010-07-05 | 2010-10-14 | Strähle, Paul | Absorber element with textile surface |
| 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 |
| 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 |
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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 |
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