CN205751515U - A kind of sound absorption structure - Google Patents
A kind of sound absorption structure Download PDFInfo
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- CN205751515U CN205751515U CN201620382274.6U CN201620382274U CN205751515U CN 205751515 U CN205751515 U CN 205751515U CN 201620382274 U CN201620382274 U CN 201620382274U CN 205751515 U CN205751515 U CN 205751515U
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- sound
- porous material
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- absorbing porous
- sound absorption
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Abstract
The utility model discloses a kind of sound absorption structure, including armour layer, thin layer and sound-absorbing porous material layer, described sound-absorbing porous material layer is made up of porous sound absorption fiber and acoustic foam, described sound-absorbing porous material layer and thin layer fit tightly and and sealing fully wrapped around by thin layer, and described armour layer is by fully wrapped around for thin layer fixing.The sound absorption structure that this utility model provides maintains the characteristic of the broadband high acoustic absorption coefficient that sound-absorbing porous material has and improves low frequency absorption characteristic.And sound-absorbing porous material self is easy to assemble dust and breed bacteria.This thin film is attached on sound-absorbing porous material, it is therefore prevented that the diffusion of sound-absorbing porous material fiber, it is simple to clean.Prevent sound-absorbing porous material from assembling dust and breed bacteria simultaneously.The mask being installed with hole i.e. solves the shortcoming that porous material should not collide, and maintains again the sound absorbing capabilities of sound-absorbing porous material simultaneously.
Description
Technical field
This utility model belongs to acoustics and environmental technology field, is specifically related to a kind of sound absorption structure.
Background technology
The development in how many years passed through, many acousticians and research staff do in terms of acoustical material
Substantial amounts of research and development and exploration, also develop acoustical material and the structure of many, but these materials and knot
Structure all exists in terms of sound absorption that different defects, such as acoustic absorptivity be low or structure is complicated etc..Traditional
Sound-absorbing porous material (such as centrifugally glass-wool) is still first-selection.But these materials are due to health or intensity
Serious restriction is received in the use of food service industry and pharmaceuticals industry etc. defect.
This utility model is exactly at the much higher hole sound absorbing material of acoustic absorptivity (such as centrifugally glass-wool and three
Poly cyanamid) surface wrap up one layer of thin film meeting food service industry and pharmaceuticals industry hygienic requirements, i.e. protect
The sound absorption characteristics holding sound-absorbing porous material meet again the hygienic requirements of food service industry and pharmaceuticals industry, solve
The difficulty that puzzlement people food and medicine productive noise for many years is administered, has filled up domestic blank.
Utility model content
The purpose of this utility model is to provide a kind of sound absorption structure, has the suction of wider frequency
Sound scope, simultaneously sanitation and hygiene, to meet the hygienic requirements of food service industry and pharmaceuticals industry
And requirement of strength.
To this end, this utility model offer techniques below scheme:
A kind of sound absorption structure, including armour layer, thin layer and sound-absorbing porous material layer, described porous
Sound-absorbing material layer is made up of porous sound absorption fiber, and described sound-absorbing porous material layer fits tightly with thin layer
And and sealing fully wrapped around by thin layer, described armour layer is by fully wrapped around for thin layer fixing.
Described armour layer is made up of galvanized steel plain sheet, corrosion resistant plate, aluminium sheet, plasterboard or plywood, thick
Degree is 0.1mm-20mm, and armour layer is provided with the hole at the arbitrary shape of 1mm-20mm, the aperture, wears
Porosity is 1%-50%.
Described thin layer is PVF (polyvinyl formal) or macromolecule membrane is made, and thickness is
0.01mm-0.4mm。
Described sound-absorbing porous material is tripolycyanamide (being commonly called as melamine) and centrifugally glass-wool is made.
The sound absorption structure that this utility model provides maintains the wideband that sound-absorbing porous material has
Characteristic with high acoustic absorption coefficient and improve the sound absorbing capabilities of low frequency.Thin film is attached to porous and inhales
On sound material, it is therefore prevented that the diffusion of sound-absorbing porous material fiber.The mask being installed with hole i.e. solves
The shortcoming that porous material of having determined should not collide, maintains again the suction of sound-absorbing porous material simultaneously
Acoustic performance, is a kind of sound absorption structure with superperformance.
Accompanying drawing explanation
The schematic diagram of Fig. 1 this utility model sound absorption structure, in figure, 10 is armour layer, and 20 is thin layer,
30 is sound-absorbing porous material layer.
Detailed description of the invention
Provide this utility model preferred embodiment below in conjunction with the accompanying drawings, of the present utility model to describe in detail
Technical scheme.
Such as Fig. 1, sound absorption structure of the present utility model, including by galvanized steel plain sheet, corrosion resistant plate, aluminium sheet,
Armour layer 10, PVF (polyvinyl formal) or the macromolecule membrane that plasterboard or plywood are made
The thin layer 20 made and the sound-absorbing porous material layer 30 being made up of sound-absorbing porous material, porous sound absorption material
The sound-absorbing porous material that the bed of material 30 is made up of tripolycyanamide and centrifugally glass-wool is made, and its density is according to ring
The noise band in border selects, and sound-absorbing porous material layer 30 and thin layer 20 fit tightly and by thin film
Layer is fully wrapped around and seals, and armour layer 10 is by fully wrapped around for thin layer 20 fixing.
Armour layer 10 is provided with the aperture hole (not shown) at 1mm-20mm, and punching rate is
1%-50%, as required or aesthetic, hole can be designed as arbitrary shape.
In order to realize best parcel and sealing effectiveness, the thickness of thin layer 20 is designed as
0.01mm-0.4mm。
The material of armour layer 10 has multiple choices, can select voluntarily according to requirement of strength during use.
Armour layer 10 by bending, weld, the technique such as riveting is attached to the outside of thin layer 20.
The product with sound absorption structure of the present utility model can be fixed on needs by modes such as hooks
Local.The implementation of hook has a lot, and this utility model differs and one lists.
Of the present utility model ultimate principle, principal character and of the present utility model have more than been shown and described
Advantage.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments,
Principle of the present utility model is simply described, without departing from this reality described in above-described embodiment and description
Various changes and modifications are also had, these changes with this utility model on the premise of novel spirit and scope
In the range of both falling within claimed this utility model with improvement.
Claims (4)
1. a sound absorption structure, it is characterised in that include armour layer, thin layer and sound-absorbing porous material
Layer, described sound-absorbing porous material layer is made up of porous sound absorption fiber and acoustic foam, described porous sound absorption
Material layer and thin layer fit tightly and and sealing fully wrapped around by thin layer, and described armour layer is by thin film
Layer is fully wrapped around fixing.
Sound absorption structure the most according to claim 1, it is characterised in that described armour layer is by galvanized steel
Plate, corrosion resistant plate, aluminium sheet, plasterboard or plywood are made, and thickness is 0.5mm-20mm, mask
Layer is provided with the hole at the arbitrary shape of 1mm-20mm, the aperture, and punching rate is 1%-50%.
Sound absorption structure the most according to claim 1, it is characterised in that described thin layer is PVF
Or macromolecule membrane makes, thickness is 0.01mm-0.4mm.
Sound absorption structure the most according to claim 1, it is characterised in that described sound-absorbing porous material is
Tripolycyanamide and centrifugally glass-wool are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620382274.6U CN205751515U (en) | 2016-04-29 | 2016-04-29 | A kind of sound absorption structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620382274.6U CN205751515U (en) | 2016-04-29 | 2016-04-29 | A kind of sound absorption structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205751515U true CN205751515U (en) | 2016-11-30 |
Family
ID=57371916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620382274.6U Active CN205751515U (en) | 2016-04-29 | 2016-04-29 | A kind of sound absorption structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205751515U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102791A (en) * | 2018-09-27 | 2018-12-28 | 武汉天马微电子有限公司 | Flexible circuit board and preparation method thereof |
| CN110619865A (en) * | 2019-10-09 | 2019-12-27 | 西北工业大学 | Film multi-cavity material with excellent sound absorption performance |
| CN112669800A (en) * | 2020-12-26 | 2021-04-16 | 西北工业大学 | Film-porous material composite structure with high-efficient sound absorption performance |
-
2016
- 2016-04-29 CN CN201620382274.6U patent/CN205751515U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102791A (en) * | 2018-09-27 | 2018-12-28 | 武汉天马微电子有限公司 | Flexible circuit board and preparation method thereof |
| CN110619865A (en) * | 2019-10-09 | 2019-12-27 | 西北工业大学 | Film multi-cavity material with excellent sound absorption performance |
| CN110619865B (en) * | 2019-10-09 | 2023-08-15 | 西北工业大学 | Film multi-cavity material with excellent sound absorption performance |
| CN112669800A (en) * | 2020-12-26 | 2021-04-16 | 西北工业大学 | Film-porous material composite structure with high-efficient sound absorption performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |