CN102385857B - Noise reduction and sound absorption device, application method of noise reduction and sound absorption device and paver - Google Patents
Noise reduction and sound absorption device, application method of noise reduction and sound absorption device and paver Download PDFInfo
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- CN102385857B CN102385857B CN 201110310370 CN201110310370A CN102385857B CN 102385857 B CN102385857 B CN 102385857B CN 201110310370 CN201110310370 CN 201110310370 CN 201110310370 A CN201110310370 A CN 201110310370A CN 102385857 B CN102385857 B CN 102385857B
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- 238000000034 method Methods 0.000 title claims description 15
- 238000010521 absorption reaction Methods 0.000 title abstract 5
- 238000005452 bending Methods 0.000 claims abstract description 5
- 230000001788 irregular Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The invention discloses a noise reduction and sound absorption device, which comprises the following steps: at least two perforated flat plates and at least one perforated flexural plate disposed between each two adjacent perforated flat plates; a plurality of through holes are formed in the porous flat plate; the porous bending plate is provided with a plurality of through holes, and the surface of the porous bending plate is in a regular or irregular curved surface shape. The noise absorption effect is good, and the noise absorption effect is not limited by application conditions and environments.
Description
Technical field
The present invention relates to the noise control technique field, espespecially a kind of noise reduction sound arrester, noise reduction sound arrester using method and paver.
Background technology
In the modern industry environment, often produce noise, a lot of occasions all need noise is controlled, with the harmful effect of noise decrease.At present, the method for noise reduction when noise produces, can also take the measure of noise reduction sound-absorbing to come noise decrease in the noise conductive process except the noise that the noise reduction source produces as much as possible.
Such as: in the noise conductive process, take the method for noise reduction sound-absorbing measure to install sound suppressor additional, paste sound-absorbing sponge etc.Installing sound suppressor additional is the essential mode of some specific occasion noise reduction, but this mode will have the corresponding interface to install sound suppressor additional, can take larger space, and application conditions is special, can not generally be applicable to the various occasions that need the noise reduction sound-absorbing.Paste the sound-absorbing sponge and be a kind ofly be widely used, noise reduction sound-absorbing means simply and easily, the method is simple and convenient, but the sound-absorbing sponge can not well play the effect of noise reduction sound-absorbing in high temperature or moist environment, its application can be subject to the restriction of environmental baseline.
Summary of the invention
The embodiment of the invention provides a kind of noise reduction sound arrester, noise reduction sound arrester using method and paver, and is poor in order to solve in the prior art noise reduction sound-absorbing mode versatility, is subjected to the problem of environment and application conditions restriction.
A kind of noise reduction sound arrester comprises: at least two porous flat plates and be arranged at least one porous bent plate between per two adjacent porous flat plates;
Some through holes are set on the described porous flat plate;
On the described porous bent plate some through holes are set, its surface is rule or irregular curve form.
A kind of noise reduction sound arrester using method is installed in above-mentioned noise reduction sound arrester on the installation carrier on the noise channel.
A kind of paver is installed above-mentioned noise reduction sound arrester on the noise channel of described paver.
Beneficial effect of the present invention is as follows:
The noise reduction sound arrester that the embodiment of the invention provides, noise reduction sound arrester using method and paver, between per two adjacent porous flat plates, at least one porous bent plate is set, some through holes all are set on porous bent plate and the porous flat plate, by the through hole that arranges noise is entered in the space between the porous flat plate, and change the path of noise transmission by the porous bent plate, make in the space of noise between porous flat plate through repeatedly refraction interference, energy is decayed gradually, thereby realizes the purpose of noise reduction sound-absorbing.This noise reduction sound arrester can not take larger space, can cut out use according to space size, and can adopt metal or other materials preparation, is not subjected to the restriction of applied environment, applicable to the noise reduction sound-absorbing of various environmental baselines, highly versatile.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the front view of noise reduction sound arrester in the embodiment of the invention;
Fig. 2 is the left view of noise reduction sound arrester shown in Figure 1 in the embodiment of the invention;
Fig. 3 is the front view of a kind of optional structure of noise reduction sound arrester in the embodiment of the invention;
Fig. 4 is the left view of noise reduction sound arrester shown in Figure 3 in the embodiment of the invention;
Fig. 5 is the front view of the another kind of optional structure of noise reduction sound arrester in the embodiment of the invention;
Fig. 6 is the left view of noise reduction sound arrester shown in Figure 5 in the embodiment of the invention.
Fig. 7 is the front view of the another kind of optional structure of noise reduction sound arrester in the embodiment of the invention;
Fig. 8 is the left view of noise reduction sound arrester shown in Figure 7 in the embodiment of the invention;
Fig. 9 is the structural representation that the paver of noise reduction sound arrester is installed in the embodiment of the invention.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The noise reduction sound arrester that the embodiment of the invention provides, its structure wherein Figure 1 shows that the front view of this noise reduction sound arrester as depicted in figs. 1 and 2, and Fig. 2 is the left view of Fig. 1.This noise reduction sound arrester comprises: at least two porous flat plates 2 and be arranged at least one porous bent plate 1 between per two adjacent porous flat plates 2.Wherein, on the porous flat plate 2 some through holes are set; Some through holes also are set on the porous bent plate 1, and its surface is rule or irregular curve form.As shown in Figure 1, porous bent plate 1 is clipped between two porous flat plates 2.
In the front view of noise reduction sound arrester as shown in Figure 1 above, the some through holes that arrange on the porous flat plate 2; In the left view of noise reduction sound arrester as shown in Figure 2 above, the cross section undulate of porous bent plate 1, its surface is the curve form of rule; Porous bent plate 1 bending part be fillet or wedge angle all can, wherein Figure 2 shows that fillet, the processing of being more convenient for.To comprise two porous flat plates 2 in the above-mentioned noise reduction sound arrester illustrated in figures 1 and 2, porous bent plate 1 is set between porous flat plate 2 to be illustrated for example, in actual design, a plurality of porous flat plates 2 can be set, between per two adjacent porous flat plates 2 one or several porous bent plate 1 be set.
Optionally, noise reduction sound arrester as depicted in figs. 1 and 2 also comprises the support coaming plate 3 of at least one side that is installed in porous flat plate 2.As depicted in figs. 1 and 2, up and down four sides of porous flat plate 2 all are provided with and support coaming plate 3.Porous bent plate 1 is clipped between two porous flat plates 2, and porous bent plate 1 and porous flat plate 2 are connected and fixed on and support in the middle of the coaming plate 3, and the sound wave that consists of porous disturbs the noise reduction sound arrester.
Be depicted as a kind of optional structure of the noise reduction sound arrester that the embodiment of the invention provides such as Fig. 3 and 4, wherein Fig. 3 is the front view of this noise reduction sound arrester, and Fig. 4 is the left view of Fig. 3.The structure of Fig. 3, its porous bent plate 1 of noise reduction sound arrester shown in Figure 4 is different from the porous bent plate 1 shown in Fig. 1, Fig. 2, its cross section is undulate also, the surface is the curve form of rule, but different among the curvature of waveform curved surface and Fig. 1, the effect that different curve forms and different curvature of curved surface can play elimination noise in various degree is set.
The another kind of optional structure of the noise reduction sound arrester that provides for the embodiment of the invention as shown in Figure 5 and Figure 6, wherein Fig. 5 is the front view of this noise reduction sound arrester, Fig. 6 is the left view of Fig. 5.Noise reduction sound arrester difference shown in this noise reduction sound arrester and Fig. 1, Fig. 2 and Fig. 3, Fig. 4 is also to comprise at least one supporting clapboard 4, between two adjacent porous flat plates 2, be used for two adjacent porous bent plates 1 between two the adjacent porous flat plates 2 in interval.
As shown in Figure 5 and Figure 6, between two adjacent porous flat plates 2 of noise reduction sound arrester a plurality of porous bent plates 1 are set, be provided with supporting clapboard 4 between per two adjacent porous bent plates 1, form some grid area by supporting clapboard 4, a porous bent plate 1 is set in each grid area.Same, Fig. 5 and porous flat plate 2 shown in Figure 6 also are not limited to two, can be a plurality of, between per two adjacent porous flat plates 2 a plurality of porous bent plates 1 can be set all.
As shown in Figure 7 and Figure 8, the noise reduction sound arrester comprises plural porous flat plate 2, as shown in FIG. be 3 porous flat plates 2, between per two adjacent porous flat plates 2 a porous bent plate 1 is set, four sides of porous flat plate 2 arrange supports coaming plate 3.As shown in Figure 8, the curved shape of two porous bent plates 1 is consistent, and both are arranged in parallel, and the position of projection and groove all is corresponding, certainly, also two porous bent plates 1 can be staggeredly arranged, make protruding 101 and the position of groove 102 mutually stagger.In addition, can also arrange two inconsistent porous bent plates of curved shape.That is to say, when at least three porous flat plates were set, the groove and the projection that are arranged on the porous bent plate curve form between two different adjacent porous flat plates staggered mutually.When three porous flat plates are set among Fig. 8, two porous bent plates are set, each porous bent plate is arranged between two adjacent porous flat plates, and groove and the projection of two porous bent plate curve forms stagger mutually.
The noise reduction sound arrester that the embodiment of the invention provides, after its porous bent plate 1 bending, the surface can the undulate shape, honeycomb shape, sine surface shape, cosine curve form or other suitable various curve forms, and is not limited to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and wave-like shown in Figure 8.This noise reduction sound arrester can be made into different shape and size specifications as required, or after completing, the shape and size specification wanted of the program of cutting out as required, the different installation such as with bolts, weldering, riveting, edge is placed on the noise channel.
Wherein, the thickness of porous flat plate 2 is not more than 1mm, and/or the thickness of porous bent plate 1 is not more than 1mm.More excellent, the thickness of porous flat plate 2 is not more than 0.5mm, and/or the thickness of porous bent plate 1 is not more than 0.5mm.
Wherein, the through hole radius on the porous flat plate 2 is not more than 1mm, and/or the through hole radius on the porous bent plate 1 is not more than 1mm.More excellent, the through hole radius on the porous flat plate 2 is not more than 0.5mm, and/or the through hole radius on the porous bent plate 1 is not more than 0.5mm.Use less through hole radius, can obtain the effect of better elimination noise.
As shown in Figure 9, above-mentioned noise reduction sound arrester can be installed on the noise channel of paver.For example: on paver outer casing inner wall shown in Figure 9, comprise above-mentioned noise reduction sound arrester 20 is installed on the noise channels such as medial surface of ceiling 10 and sidewall 11, can each sidewall 11 and ceiling 10 on arrange, also can be worth therein on one or several sidewall or the ceiling and arrange.
The embodiment of the invention also provides a kind of using method of above-mentioned noise reduction sound arrester, in use, above-mentioned noise reduction sound arrester is installed on the installation carrier on the noise channel.Concrete, can adopt one of following connected mode or combination that above-mentioned noise reduction sound arrester is installed on the installation carrier on the noise channel: to be threaded, to weld, to rivet, to inlay.
This noise reduction sound arrester utilizes sound wave repeatedly to reflect and disturbs and reaches the noise reduction sound-absorbing effect, the aperture that the noise sound wave that noise source produces passes porous flat plate 2 enters space, porous bent plate 1 place, sound wave enters the cavity body of porous bent plate 1 and porous flat plate 2 formation, aperture produces eddy current changes audio frequency, consumes simultaneously acoustic wave energy; Sound wave is repeatedly refraction between porous bent plate 1 and porous flat plate 2, the phase mutual interference, and frequency, amplitude, the direction of propagation etc. change, and the sound wave of component frequency changes into high frequency or low-frequency sound wave, and amplitude reduces gradually, and energy is progressively decayed, and realizes the noise reduction sound-absorbing.
When environmental baseline allowed, this noise reduction sound arrester can be used in combination to add the effect that very noisy is eliminated with sound-absorbing sponge etc.
The noise reduction sound arrester that example of the present invention provides, between per two adjacent porous flat plates, at least one porous bent plate is set, some through holes all are set on porous bent plate and the porous flat plate, by the through hole that arranges noise is entered in the space between the porous flat plate, and change the path of noise transmission by the porous bent plate, make in the space of noise between porous flat plate and cause sound wave to disturb through repeatedly reflecting, acoustic wave energy is decayed gradually, thereby realize the effect of noise reduction sound-absorbing; The noise reduction sound arrester can adopt the multihole lamina of porous metal plate or other material, in unit area more aperture is set, and the little thickness of slab in aperture is thinner, can be good at playing the effect of noise reduction sound-absorbing.
This noise reduction sound arrester can not take larger space, can cut out use according to space size, and can adopt metal or other materials preparation, is not subjected to the restriction of applied environment, applicable to the noise reduction sound-absorbing of various environmental baselines, highly versatile.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection domain of the appended claim of the present invention.
Claims (12)
1. a noise reduction sound arrester is characterized in that, comprising: at least two porous flat plates and be arranged on a plurality of porous bent plates between per two adjacent porous flat plates;
Some through holes are set on the described porous flat plate;
On the described porous bent plate some through holes are set, its surface is rule or irregular curve form;
At least one supporting clapboard between two adjacent porous flat plates, is used for two adjacent porous bent plates between two the adjacent porous flat plates in interval, wherein, forms some grid area by supporting clapboard, and a porous bent plate is set in each grid area.
2. noise reduction sound arrester as claimed in claim 1 is characterized in that, the thickness of described porous flat plate is not more than 1mm; And/or the thickness of described porous bent plate is not more than 1mm.
3. noise reduction sound arrester as claimed in claim 1 is characterized in that, the through hole radius on the described porous flat plate is not more than 1mm; And/or the through hole radius on the described porous bent plate is not more than 1mm.
4. noise reduction sound arrester as claimed in claim 1 is characterized in that, the thickness of described porous flat plate is not more than 0.5mm; And/or the thickness of described porous bent plate is not more than 0.5mm.
5. noise reduction sound arrester as claimed in claim 1 is characterized in that, the through hole radius on the described porous flat plate is not more than 0.5mm; And/or the through hole radius on the described porous bent plate is not more than 0.5mm.
6. noise reduction sound arrester as claimed in claim 1 is characterized in that, after the bending of described porous bent plate, and surperficial undulate shape, honeycomb shape, sine surface shape or cosine curve form.
7. noise reduction sound arrester as claimed in claim 1 is characterized in that, when three porous flat plates are set, two porous bent plates is set, and each porous bent plate is arranged between two adjacent porous flat plates.
8. noise reduction sound arrester as claimed in claim 7 is characterized in that, groove and the projection of described two porous bent plate curve forms stagger mutually.
9. such as the arbitrary described noise reduction sound arrester of claim 1-8, it is characterized in that, also comprise: the support coaming plate that is installed at least one side of described porous flat plate.
10. a noise reduction sound arrester using method is characterized in that, will be installed on the installation carrier on the noise channel such as the arbitrary described noise reduction sound arrester of claim 1-10.
11. noise reduction sound arrester using method as claimed in claim 10 is characterized in that, adopts one of following connected mode or combination that described noise reduction sound arrester is installed on the installation carrier on the noise channel: to be threaded, to weld, to rivet, to inlay.
12. a paver is characterized in that, installs such as the arbitrary described noise reduction sound arrester of claim 1-9 on the noise channel of described paver.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110310370 CN102385857B (en) | 2011-10-13 | 2011-10-13 | Noise reduction and sound absorption device, application method of noise reduction and sound absorption device and paver |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110310370 CN102385857B (en) | 2011-10-13 | 2011-10-13 | Noise reduction and sound absorption device, application method of noise reduction and sound absorption device and paver |
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| CN102385857A CN102385857A (en) | 2012-03-21 |
| CN102385857B true CN102385857B (en) | 2013-01-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9520121B2 (en) * | 2013-06-25 | 2016-12-13 | The Hong Kong University Of Science And Technology | Acoustic and vibrational energy absorption metamaterials |
| CN105484844A (en) * | 2016-01-30 | 2016-04-13 | 吉林大学 | Bionic exhaust tail pipe of tractor |
| US10626799B2 (en) * | 2017-07-19 | 2020-04-21 | Hexcel Corporation | Flexible acoustic honeycomb |
| CN112700760B (en) * | 2020-12-23 | 2022-05-24 | 新沂市承翔电子有限公司 | Noise-reduction strong-sound electronic buzzer and control system and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278336A (en) * | 2005-10-05 | 2008-10-01 | 株式会社神户制钢所 | Soundproof panel |
| EP2026325A2 (en) * | 2007-08-15 | 2009-02-18 | Rohr, Inc. | Linear acoustic liner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210912U (en) * | 1975-07-12 | 1977-01-26 | ||
| JPS533409U (en) * | 1976-06-29 | 1978-01-13 | ||
| JPH11200528A (en) * | 1998-01-13 | 1999-07-27 | Tekkosha Buru:Kk | Sound absorption panel |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278336A (en) * | 2005-10-05 | 2008-10-01 | 株式会社神户制钢所 | Soundproof panel |
| EP2026325A2 (en) * | 2007-08-15 | 2009-02-18 | Rohr, Inc. | Linear acoustic liner |
Non-Patent Citations (2)
| Title |
|---|
| JP实开昭52-10912U 1977.01.26 |
| JP特开平11-200528A 1999.07.27 |
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