CN202301217U - Sound absorption structure of soundproof housing - Google Patents
Sound absorption structure of soundproof housing Download PDFInfo
- Publication number
- CN202301217U CN202301217U CN2011203576433U CN201120357643U CN202301217U CN 202301217 U CN202301217 U CN 202301217U CN 2011203576433 U CN2011203576433 U CN 2011203576433U CN 201120357643 U CN201120357643 U CN 201120357643U CN 202301217 U CN202301217 U CN 202301217U
- Authority
- CN
- China
- Prior art keywords
- sound
- sound absorption
- perforated plate
- absorption structure
- galvanized sheet
- 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 - Lifetime
Links
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The utility model relates to a sound absorption structure of a soundproof housing, which comprises a shell galvanized sheet, an inner wall perforated plate, glass fiber cloth and a sound absorption material, wherein the sound absorption material is arranged between the shell galvanized sheet and the inner wall perforated plate, and a layer of glass fiber cloth is covered on the surface of the sound absorption material. The distance between the shell galvanized sheet and the inner wall perforated plate is not smaller than 50 mm. A plurality of punch holes are arranged on the inner wall perforated plate, and the perforated percentage is not smaller than 20%. The sound absorption structure of the utility model has the advantages of having a compact and reasonable structure, capable of reducing the reverberation in the soundproof housing and perfecting the sound absorption frequency band of the perforated plate; a layer of glass fiber cloth is covered on the surface of the sound absorption material to prevent the chips or fibers from dispersing from the perforated plate; besides, the sound absorption structure is capable of improving the sound absorption coefficient of the inner wall and improving the noise reduction capability, and the sound absorption structure has good sound isolation and sound absorption effects, etc.
Description
Technical field
The utility model relates to the sound absorption structure of high-speed centrifugal fan sound-insulating cover, and specifically a kind of follow-on structure of sound-insulating cover belongs to the mechanical structure technical field.
Background technique
In existing technology, can produce bigger noise during the high-speed centrifugal fan operation, environment is polluted, and general blower fan sound-insulating cover inwall does not adopt sound absorption structure, the inwall acoustic absorptivity is little, and noise reduction is poor.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, thereby a kind of improvement structure of sound-insulating cover is provided, and its sqouynd absorption lowering noise effect is obvious, and compact structure is reasonable.
The technological scheme that provides according to the utility model; The sound-insulating cover sound absorption structure comprises shell galvanized sheet, inwall perforated plate, glass fiber cloth, sound-absorbing material; Be provided with sound-absorbing material between said shell galvanized sheet and the inwall perforated plate, layer of glass cloth is covered on the sound-absorbing material surface.
As further improvement of the present invention, the distance between said shell galvanized sheet and the inwall perforated plate is not less than 50mm.
As further improvement of the present invention, said inwall perforated plate is provided with some perforation, and said punching rate is not less than 20%.
As further improvement of the present invention, said sound-absorbing material adopts different materials under different situations, like super glass wool or mineral wool etc.
Compared with present technology the utility model has the following advantages:
The utility model compact structure, reasonable; Can effectively reduce the reverberation in the sound-insulating cover, improve the sound sucting band of perforated plate; Layer of glass cloth is covered on the sound-absorbing material surface, in order to avoid fines or fiber are by shedding in the perforated plate; Can improve the acoustic absorptivity of inwall, improve noise reduction capability; And have characteristics such as sound insulation, acoustically effective is good.
Description of drawings
Fig. 1 is the structural representation of sound-insulating cover.
Fig. 2 is the A place enlarged view of Fig. 1.
Embodiment
Following the utility model will combine the embodiment in the accompanying drawing to further describe:
Like Fig. 1～shown in Figure 2: comprise parts such as shell galvanized sheet 1, inwall perforated plate 2, sound-absorbing material 3, glass fiber cloth 4, air intake venetian blind 5, radiation fan 6.
Said sound-insulating cover comprises sound-insulating cover body 7, air intake venetian blind 5, radiation fan 6 etc., and said sound-insulating cover body 7 is provided with parts such as air intake venetian blind 5, radiation fan 6, and sound-insulating cover body 7 inwalls are provided with the sound-insulating cover sound absorption structure.
The utility model sound-insulating cover sound absorption structure comprises component such as shell galvanized sheet 1, inwall perforated plate 2, sound-absorbing material 3, glass fiber cloth 4.
Said inwall perforated plate 2 is provided with some perforation, and said punching rate is not less than 20%.Inwall perforated plate 2 promptly constitutes perforation board resonance sound absorption structure and improves sound absorbing capabilities.Be provided with sound-absorbing material 3 between shell galvanized sheet 1 and the inwall perforated plate 2, said sound-absorbing material 3 (under different situations, adopting different materials, like super glass wool or mineral wool etc.) can effectively reduce the reverberation in the sound-insulating cover, improves the sound sucting band of perforated plate.Distance X between shell galvanized sheet 1 and the inwall perforated plate 2 is not less than 50mm.Layer of glass cloth 4 is covered on the sound-absorbing material surface, in order to avoid fines or fiber are by shedding in the perforated plate.This sound-insulating cover is owing to having improved the acoustic absorptivity of inwall, so improved its noise reduction capability.
Claims (4)
1. sound-insulating cover sound absorption structure; It is characterized in that: comprise shell galvanized sheet (1), inwall perforated plate (2), sound-absorbing material (3), glass fiber cloth (4); Be provided with sound-absorbing material (3) between said shell galvanized sheet (1) and the inwall perforated plate (2), layer of glass cloth (4) is covered on sound-absorbing material (3) surface.
2. sound-insulating cover sound absorption structure as claimed in claim 1 is characterized in that: the distance between said shell galvanized sheet (1) and the inwall perforated plate (2) is not less than 50mm.
3. sound-insulating cover sound absorption structure as claimed in claim 1 is characterized in that: said inwall perforated plate (2) is provided with some perforation, and said punching rate is not less than 20%.
4. sound-insulating cover sound absorption structure as claimed in claim 1 is characterized in that: said sound-absorbing material (3) adopts super glass wool or mineral wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203576433U CN202301217U (en) | 2011-09-22 | 2011-09-22 | Sound absorption structure of soundproof housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203576433U CN202301217U (en) | 2011-09-22 | 2011-09-22 | Sound absorption structure of soundproof housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301217U true CN202301217U (en) | 2012-07-04 |
Family
ID=46370126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203576433U Expired - Lifetime CN202301217U (en) | 2011-09-22 | 2011-09-22 | Sound absorption structure of soundproof housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925248A (en) * | 2014-05-04 | 2014-07-16 | 苏州喜福瑞农业科技有限公司 | Siphon type straight air exhaust sound receiving box |
| CN105178644A (en) * | 2015-08-20 | 2015-12-23 | 成都济柴动力设备有限公司 | Torque converter noise reduction room |
-
2011
- 2011-09-22 CN CN2011203576433U patent/CN202301217U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925248A (en) * | 2014-05-04 | 2014-07-16 | 苏州喜福瑞农业科技有限公司 | Siphon type straight air exhaust sound receiving box |
| CN105178644A (en) * | 2015-08-20 | 2015-12-23 | 成都济柴动力设备有限公司 | Torque converter noise reduction room |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102522079B (en) | Impedance compound right-angled muffler | |
| CN105803965B (en) | A kind of broadband sound absorption cell board | |
| CN202578056U (en) | Purification sound-proof chamber | |
| CN204783543U (en) | A sound proof box and compressor unit spare for compressor | |
| CN203454299U (en) | Air conditioner outdoor unit with noise reduction device | |
| CN2356165Y (en) | Noise eliminating fan | |
| CN104805920A (en) | Noise elimination device for generator room | |
| CN201496128U (en) | Wedge staggered silencer | |
| CN202835736U (en) | Plate type silencer with different thickness sound absorbing plates arranged at intervals | |
| CN202301217U (en) | Sound absorption structure of soundproof housing | |
| CN103711338B (en) | A kind of super-silent diesel generating set machine room noise control method | |
| CN206917933U (en) | A kind of cement plant muffler | |
| CN106653286B (en) | A kind of American Unit Substation noise-reduction case | |
| CN102287404A (en) | Sound absorption structure of soundproof shield | |
| CN202254168U (en) | Silencing blind | |
| CN201679416U (en) | Sound-absorbing and ventilating window | |
| CN203258770U (en) | Sound insulation cotton for air conditioner compressor and air conditioner | |
| CN203701886U (en) | Micro-through-hole double-cavity silencing louvers | |
| CN202451012U (en) | Air exhaust silencing shutters | |
| CN203716542U (en) | Diesel generating set machine room | |
| CN205207280U (en) | Spinning workshop noise killer | |
| CN209743255U (en) | Range hood wind cabinet and range hood | |
| CN203440934U (en) | Suspended absorber | |
| CN202900798U (en) | Noise reducing reforming device for fan in spinning workshop | |
| CN206054098U (en) | A kind of ventilating and noise decreasing device of diesel-driven generator cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214101 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: JIANGSU GL-TURBO CORPORATION Address before: 214192 Jiangsu Province, Wuxi city Xishan District of Xishan Economic Development Zone in three Furong Road No. 99 building six room 507 zuiun Patentee before: Wuxi Jieer Compressor Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |