CN202008830U - Composite sound absorption board - Google Patents
Composite sound absorption board Download PDFInfo
- Publication number
- CN202008830U CN202008830U CN201120058778XU CN201120058778U CN202008830U CN 202008830 U CN202008830 U CN 202008830U CN 201120058778X U CN201120058778X U CN 201120058778XU CN 201120058778 U CN201120058778 U CN 201120058778U CN 202008830 U CN202008830 U CN 202008830U
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- Prior art keywords
- sound absorption
- layer board
- board
- laminate
- layer
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- 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
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a composite sound absorption board, relating to soundproofing devices. The composite sound absorption board comprises an upper-layer board, a lower-layer board and a soundproofing material; wherein the soundproofing material is arranged between the upper-layer board and the lower-layer board, the upper layer board and the lower-layer board are perforated boards and are connected with each other by a keel, the soundproofing material is filled in a cavity formed by the upper-layer board, the lower-layer board and the keel; and the soundproofing material is a porous fiber material layer, and the porous fiber material layer is wrapped by glass fiber cloth. The composite sound absorption board has simple structure, good suitability, strong durability, good sound absorption performance and sound absorption coefficient larger than 0.98, can play a leading role in large, medium and small soundproofing devices according to size requirements, also can largely reduce medium and high frequency noises due to indoor installation and is convenient to manufacture, convey, assemble and combine and install onsite.
Description
Technical field
The utility model relates to a kind of noise elimination equipment, particularly sound-absorbing composite board.
Background technology
Present sound absorption disposal route is with acoustic absorbant stickup, embedding etc., for indoor noise reduction or the silencer element in the silencing equipment etc., need assemble installation with different assembly methods, and also not have a kind of tabular sound absorber that can make assembling in enormous quantities, install and use with common material in the market.
The utility model content
At above-mentioned the deficiencies in the prior art part, the utility model provides a kind of sound-absorbing composite board, has solved the problem that above-mentioned prior art exists effectively.
To achieve these goals, the technical solution adopted in the utility model is: a kind of sound-absorbing composite board, comprise laminate and the deadener between the laminate up and down up and down, described laminate up and down all is a perforated plate, connecting by keel between the laminate up and down, in the cavity that laminate and keel formed about described deadener was filled in, this deadener is the porous fibrous material layer, and this porous fibrous material layer coats by glass cloth.
As preferably: the periphery of described laminate up and down and porous fibrous material layer seals by frame.
As preferably: described perforation thickness of slab 0.5-3mm, percentage of perforation is 10%-30%.
As preferably: described porous fibrous material bed thickness 50-220mm.
Compared with prior art, the beneficial effect of this utility model: the utility model is simple in structure, both can in large, medium and small type silencing equipment, play a major role according to size requirements, also can be installed in the indoor effect that reduces middle and high frequency noise significantly of playing, suitability is good, and durability is strong, sound absorbing capabilities is good, acoustical absorption coefficient is convenient to manufacturing, transportation and assembly greater than 0.98, and is on-the-spot easy for installation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the plan structure synoptic diagram of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Embodiment:
Referring to Fig. 1 and Fig. 2, this sound-absorbing composite board comprises laminate 1 and the deadener 3 between the laminate 1 up and down up and down, described laminate 1 up and down all is a perforated plate, this perforation thickness of slab is 0.5-3mm, percentage of perforation is 10%-30%, connecting by keel 4 between the laminate 1 up and down, in the cavity that laminate 1 and keel 4 formed about described deadener 3 was filled in, this deadener 3 is the porous fibrous material layer, this porous fibrous material bed thickness 50-220mm, this porous fibrous material layer coats by high density glass cloth 2, prevents that fibrous material is sucked out.The periphery of described laminate 1 up and down and porous fibrous material layer is closed by frame 5 sealings, and this frame 5 connects fastening by screw, rivet etc.
The utility model assembles silencer element by thickness, density, length and the width requirement that designs as required with perforated plate, glass cloth, fibrous material, has good sound absorption for middle and high frequency acoustic energy, can be used as the element in the sound suppressor, also can install and use the effect that obtains sqouynd absorption lowering noise separately, this acoustic board is convenient to manufacturing, transportation and assembly, size is made on demand, suitability is good, durability is strong, sound absorbing capabilities is good, acoustical absorption coefficient also is convenient to on-the-spot the installation greater than 0.98.
The above only is the detailed description of the utility model preferred embodiment and graphic, is not to be used for limiting the utility model, and the embodiment or the approximate construction of all similar variations of doing according to creation spirit of the present utility model all should be contained among the utility model.
Claims (4)
1. sound-absorbing composite board, comprise laminate and the deadener between the laminate up and down up and down, it is characterized in that: described laminate up and down all is a perforated plate, connecting by keel between the laminate up and down, in the cavity that laminate and keel formed about described deadener was filled in, this deadener is the porous fibrous material layer, and this porous fibrous material layer coats by glass cloth.
2. sound-absorbing composite board according to claim 1 is characterized in that: the periphery of described laminate up and down and porous fibrous material layer seals by frame.
3. sound-absorbing composite board according to claim 1 is characterized in that: described perforation thickness of slab 0.5-3mm, percentage of perforation is 10%-30%.
4. sound-absorbing composite board according to claim 1 is characterized in that: described porous fibrous material bed thickness 50-220mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120058778XU CN202008830U (en) | 2011-03-08 | 2011-03-08 | Composite sound absorption board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120058778XU CN202008830U (en) | 2011-03-08 | 2011-03-08 | Composite sound absorption board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202008830U true CN202008830U (en) | 2011-10-12 |
Family
ID=44750490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120058778XU Expired - Fee Related CN202008830U (en) | 2011-03-08 | 2011-03-08 | Composite sound absorption board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202008830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106899A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院声学研究所 | Multi-functional layered composite materials for high-speed train |
| CN108962212A (en) * | 2018-09-26 | 2018-12-07 | 中国船舶重工集团公司第七0三研究所 | Big section resistive muffler during a kind of segmentation is closed |
-
2011
- 2011-03-08 CN CN201120058778XU patent/CN202008830U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103106899A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院声学研究所 | Multi-functional layered composite materials for high-speed train |
| CN108962212A (en) * | 2018-09-26 | 2018-12-07 | 中国船舶重工集团公司第七0三研究所 | Big section resistive muffler during a kind of segmentation is closed |
| CN108962212B (en) * | 2018-09-26 | 2023-09-08 | 中国船舶重工集团公司第七0三研究所 | Sectional closed middle-large section resistive muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20130308 |