CN210049421U - Waterproof broadband composite aluminum alloy sound absorber - Google Patents
Waterproof broadband composite aluminum alloy sound absorber Download PDFInfo
- Publication number
- CN210049421U CN210049421U CN201920772986.2U CN201920772986U CN210049421U CN 210049421 U CN210049421 U CN 210049421U CN 201920772986 U CN201920772986 U CN 201920772986U CN 210049421 U CN210049421 U CN 210049421U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- panel
- aluminum alloy
- sound absorber
- back plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 31
- 239000006096 absorbing agent Substances 0.000 title claims description 33
- 238000010521 absorption reaction Methods 0.000 claims abstract description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 5
- 239000006098 acoustic absorber Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 230000009970 fire resistant effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 241000700647 Variola virus Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a compound aluminum alloy acoustic absorber of waterproof wide band, include: the six composite sound absorption plates are sequentially connected and surround to form a regular hexagon; each composite sound absorption plate comprises from outside to inside in sequence: the panel is opposite to the back plate, and a cavity is formed between the panel and the back plate; the panel is an aluminum plate, a plurality of first micro-perforations are arranged on the panel, and hydrophobic glass fiber cloth is arranged on the inner side of the panel; the back plate is an aluminum plate, and a plurality of second micro-perforations are arranged on the back plate; the aluminum film is arranged in the cavity and is positioned between the panel and the back plate. The utility model discloses the sound absorption is effectual, especially centering low frequency sound absorption performance preferred, and the quality is light moreover, and waterproof, fire-resistant grade are high, green.
Description
Technical Field
The utility model relates to a technical field of the sound absorber especially relates to a compound aluminum alloy sound absorber of waterproof wide band.
Background
In the field of sound construction, in order to reduce the reverberant sound in a humid environment and achieve the purpose of improving the sound quality, a sound absorber is often laid indoors. Especially has strict requirements on the sound absorption performance of sound absorbers in swimming pools, marine aquarium children water orchards and the like with higher sound quality requirements. The sound absorption body has the requirements of wide sound absorption frequency band, good low-frequency sound absorption performance and good waterproof performance on the acoustic performance of the sound absorption body.
The sound absorber in the prior art has poor sound absorption and waterproof effects, particularly has poor low-frequency sound absorption performance, is high in quality, is not waterproof and is not environment-friendly.
Disclosure of Invention
The waterproof broadband composite aluminum alloy sound absorber is poor in waterproof sound absorption effect, particularly poor in low-frequency sound absorption performance, large in mass and not environment-friendly, and aims to provide a waterproof broadband composite aluminum alloy sound absorber which is good in waterproof sound absorption effect, particularly good in middle-low frequency sound absorption performance, light in mass, high in fire resistance level and environment-friendly.
The specific technical scheme is as follows:
a waterproof broadband composite aluminum alloy sound absorber, comprising: the six composite sound absorption plates are sequentially connected and surround to form a regular hexagon;
each composite sound absorption plate comprises from outside to inside in sequence: the panel is opposite to the back plate, and a cavity is formed between the panel and the back plate;
the panel is an aluminum plate, a plurality of first micro-perforations are arranged on the panel, and hydrophobic glass fiber cloth is arranged on the inner side of the panel;
the back plate is an aluminum plate, and a plurality of second micro-perforations are arranged on the back plate;
the aluminum film is arranged in the cavity and is positioned between the panel and the back plate.
In the waterproof broadband composite aluminum alloy sound absorber, the two adjacent first micro-perforations are arranged at equal intervals, and the two adjacent second micro-perforations are arranged at equal intervals.
The waterproof broadband composite aluminum alloy sound absorber comprises six back plates, wherein the six back plates are connected in sequence, and the six back plates are arranged in a regular hexagon shape in a surrounding mode.
The waterproof broadband composite aluminum alloy sound absorber is characterized in that the perforation rate of the panel is 1%.
In the waterproof broadband composite aluminum alloy sound absorber, the perforation rate of the back plate is 2%.
The waterproof broadband composite aluminum alloy sound absorber is characterized in that the thickness of the panel is 0.8mm, and the aperture of each first micro-perforated hole is 0.8 mm.
In the waterproof broadband composite aluminum alloy sound absorber, the thickness of the back plate is 0.8mm, and the aperture of each second micro-perforated hole is 0.8 mm.
Above-mentioned waterproof broadband composite aluminum alloy sound absorber, wherein, the thickness of aluminium membrane is 0.35 mm.
The waterproof broadband composite aluminum alloy sound absorber is characterized in that the thickness of the cavity is 50 mm.
In the waterproof broadband composite aluminum alloy sound absorber, a gap is formed between two adjacent panels.
Compared with the prior art, the technical scheme has the positive effects that:
the utility model discloses a sound absorption effect is good, especially centering low frequency sound absorption performance preferred, and the quality is light moreover, and fire-resistant grade is high, green.
Drawings
Fig. 1 is a schematic view of the overall structure of a waterproof broadband composite aluminum alloy sound absorber of the present invention;
FIG. 2 is a perspective view of a waterproof broadband composite aluminum alloy sound absorber of the present invention;
in the drawings: 1. a composite acoustic panel; 2. a panel; 3. aluminum film; 4. a back plate; 5. a cavity; 6. a first microperforation; 7. a second microperforation.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is the utility model relates to an overall structure schematic diagram of waterproof wide band composite aluminum alloy sound absorber, fig. 2 is the utility model relates to a perspective view of waterproof wide band composite aluminum alloy sound absorber, as shown in fig. 1 and fig. 2, the waterproof wide band composite aluminum alloy sound absorber of a preferred embodiment is shown, include: the six composite sound-absorbing boards 1 are sequentially connected, and the six composite sound-absorbing boards 1 surround to form a regular hexagon.
Further, as a preferred embodiment, each composite sound absorption board comprises, from outside to inside: the panel 2, aluminium membrane 3 and backplate 4, panel 2 and backplate 4 are just right, form cavity 5 between panel 2 and the backplate 4.
Further, as a preferred embodiment, the panel 2 is an aluminum plate, the panel 2 is provided with a plurality of first micro-perforations 6, and the inner side of the panel 2 is provided with hydrophobic glass fiber cloth. Preferably, the hydrophobic glass fiber cloth has a perforation rate of 1%.
Further, as a preferred embodiment, the back plate 4 is an aluminum plate, and a plurality of second micro-perforations 7 are provided on the back plate 4.
Further, as a preferred embodiment, the aluminum film 3 is disposed in the cavity 5, and the aluminum film 3 is located between the panel 2 and the back plate 4.
Further, as a preferred embodiment, two adjacent first micro-holes 6 are disposed at equal intervals, and two adjacent second micro-holes 7 are disposed at equal intervals.
Further, as a preferred embodiment, the six back plates 4 are connected in sequence, and the six back plates 4 surround to form a regular hexagon.
The above is merely an example of the preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The utility model discloses still have following embodiment on above-mentioned basis:
in a further embodiment of the present invention, please continue to refer to fig. 1 and fig. 2, the perforation rate of the panel 2 is 1%.
In a further embodiment of the present invention, the perforation rate of the back plate 4 is 2%.
In a further embodiment of the present invention, the thickness of the panel 2 is 0.8mm, and the aperture of each first micro-perforated hole 6 is 0.8 mm.
In a further embodiment of the present invention, the thickness of the back plate 4 is 0.8mm, and the aperture of each second micro-perforated hole 7 is 0.8 mm.
In a further embodiment of the present invention, the thickness of the aluminum film 3 is 0.35 mm.
In a further embodiment of the present invention, the thickness of the cavity 4 is 50 mm.
In a further embodiment of the present invention, a gap is formed between two adjacent panels 2.
The utility model relates to a hexagonal honeycomb space acoustic absorber, its honeycomb space acoustic absorber material are the combined type sound absorption and constitute, and compound acoustic baffle is by the three-layer sound absorption structure.
The utility model discloses a sound absorption effect is good, especially centering low frequency sound absorption performance preferred, and the quality is light moreover, and waterproof, fire-resistant grade are high, and green is a fine sound absorbent on the smallpox in big space for the practicality.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. The utility model provides a compound aluminum alloy acoustic absorber of waterproof wide band which characterized in that includes: the six composite sound absorption plates are sequentially connected and surround to form a regular hexagon;
each composite sound absorption plate comprises from outside to inside in sequence: the panel is opposite to the back plate, and a cavity is formed between the panel and the back plate;
the panel is an aluminum plate, a plurality of first micro-perforations are arranged on the panel, and hydrophobic glass fiber cloth is arranged on the inner side of the panel;
the back plate is an aluminum plate, and a plurality of second micro-perforations are arranged on the back plate;
the aluminum film is arranged in the cavity and is positioned between the panel and the back plate.
2. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein two adjacent first micro-holes are equally spaced, and two adjacent second micro-holes are equally spaced.
3. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein six back plates are connected in sequence, and the six back plates are arranged in a regular hexagon around the periphery.
4. The waterproof broadband composite aluminum alloy sound absorber of claim 1, wherein the panel has a perforation rate of 1%.
5. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein the back sheet has a perforation rate of 2%.
6. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein the panel has a thickness of 0.8mm, and the first micro-perforated holes each have a hole diameter of 0.8 mm.
7. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein the thickness of the backing plate is 0.8mm, and the diameter of each second micro-perforated hole is 0.8 mm.
8. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein the thickness of the aluminum film is 0.35 mm.
9. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein the cavity has a thickness of 50 mm.
10. The waterproof broadband composite aluminum alloy sound absorber as claimed in claim 1, wherein a gap is formed between two adjacent panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920772986.2U CN210049421U (en) | 2019-05-27 | 2019-05-27 | Waterproof broadband composite aluminum alloy sound absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920772986.2U CN210049421U (en) | 2019-05-27 | 2019-05-27 | Waterproof broadband composite aluminum alloy sound absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210049421U true CN210049421U (en) | 2020-02-11 |
Family
ID=69395037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920772986.2U Expired - Fee Related CN210049421U (en) | 2019-05-27 | 2019-05-27 | Waterproof broadband composite aluminum alloy sound absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210049421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029746A (en) * | 2019-05-27 | 2019-07-19 | 上海申华声学装备有限公司 | Waterproof wideband Al-alloy sound absorber |
-
2019
- 2019-05-27 CN CN201920772986.2U patent/CN210049421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029746A (en) * | 2019-05-27 | 2019-07-19 | 上海申华声学装备有限公司 | Waterproof wideband Al-alloy sound absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 Termination date: 20210527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |