CN2256933Y - Silencer casing - Google Patents
Silencer casing Download PDFInfo
- Publication number
- CN2256933Y CN2256933Y CN 95205957 CN95205957U CN2256933Y CN 2256933 Y CN2256933 Y CN 2256933Y CN 95205957 CN95205957 CN 95205957 CN 95205957 U CN95205957 U CN 95205957U CN 2256933 Y CN2256933 Y CN 2256933Y
- Authority
- CN
- China
- Prior art keywords
- utility
- casing
- model
- layers
- silencing apparatus
- 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
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Abstract
The utility model relates to a silencer casing, particularly the silencer casing for a blower. The utility model comprises a casing (1), an internal wall which is bonded by a sound absorbing material layer (2) and a micro porous plate (5), etc. A hollow chamber (4) is arranged between the casing (1) and the internal wall; the internal wall is both layers, and the internal part of the both layers is provided with the hollow chamber (4). The utility model has good silencing effect and can reduce noise more than 20 db, and the silencer casing is favorable for eliminating environmental noise and is beneficial to good health of people.
Description
The utility model relates to a kind of housing of silencing apparatus, particularly a kind of housing that is used for the silencing apparatus of blower fan.
The housing of traditional silencing apparatus is a single layer structure, and no cavity can only be eliminated 6～10 decibels of noises, though thereby through the noise elimination of silencing apparatus, noise is still bigger, and is still unfavorable to people's health.
The purpose of this utility model is to adopt electromagnetic oscillations principle and cavity structure, provides a kind of and abates the noise effectively, more is of value to the housing of the healthy a kind of silencing apparatus of people.
The purpose of this utility model realizes by following technological scheme.Get shell ready, a cavity is arranged between shell and inwall, promptly constitute the housing of silencing apparatus.Inwall is pasted mutually with microwell plate by sound-absorbing material layer and forms; Inwall is two layers, cavity is arranged in two layers.The one side of the microwell plate of inwall is near noise source.
The utility model adopts electromagnetic oscillations principle and cavity structure, because noise vibrates in cavity, makes the big high attenuation of its noise, thereby has reduced noise significantly, can reduce noise more than 20 decibels, more help eliminating ambient noise and be of value to the healthy of people.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the utility model structural representation.
Fig. 2 cooperates blower fan utilization structure schematic representation for the utility model.
With reference to Fig. 1, get shell 1 ready, a cavity 4 is arranged between shell 1 and the inwall, promptly constitute the housing of silencing apparatus.Inwall is pasted mutually with microwell plate 5 by sound-absorbing material layer 2 and constitutes, and inwall is two layers, cavity 4 is arranged in two layers.The one side of the microwell plate 5 of inwall is near noise source.
Shell 1 usefulness steel plate is made; Materials such as sound-absorbing material layer 2 usefulness glass cloth, rock wool, foam, antinoise paint, super glass wool are made; Microwell plate 5 usefulness sheet metals are made;
Fig. 2 is the structural representation that the housing of this silencing apparatus is used for blower fan, and in Fig. 2,6 is blower fan, and the shell construction of this kind silencing apparatus is used for blower fan, has eliminated the noise of blower fan greatly, can reduce noise more than 20 decibels.
Claims (3)
1. the housing of a silencing apparatus comprises shell [1], and it is characterized in that has a cavity [4] between shell [1] and the inwall.
2. by the housing of the described silencing apparatus of claim 1, it is characterized in that inwall pastes formation by sound-absorbing material layer [2] mutually with microwell plate [5].
3. by the housing of the described silencing apparatus of claim 1, it is characterized in that inwall is two layers, cavity [4] is arranged in two layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95205957 CN2256933Y (en) | 1995-03-23 | 1995-03-23 | Silencer casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95205957 CN2256933Y (en) | 1995-03-23 | 1995-03-23 | Silencer casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256933Y true CN2256933Y (en) | 1997-06-25 |
Family
ID=33858033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95205957 Expired - Fee Related CN2256933Y (en) | 1995-03-23 | 1995-03-23 | Silencer casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256933Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971057B (en) * | 2005-11-23 | 2010-09-08 | 大宇造船海洋株式会社 | Jet fan for airflow movement |
| CN101163866B (en) * | 2005-04-11 | 2012-05-02 | 开利公司 | Compressor muffler |
| WO2018157337A1 (en) * | 2017-03-01 | 2018-09-07 | 美的集团股份有限公司 | Fan head and bladeless fan |
| CN109882336A (en) * | 2019-03-11 | 2019-06-14 | 西华大学 | A kind of impulse turbine |
-
1995
- 1995-03-23 CN CN 95205957 patent/CN2256933Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101163866B (en) * | 2005-04-11 | 2012-05-02 | 开利公司 | Compressor muffler |
| CN1971057B (en) * | 2005-11-23 | 2010-09-08 | 大宇造船海洋株式会社 | Jet fan for airflow movement |
| WO2018157337A1 (en) * | 2017-03-01 | 2018-09-07 | 美的集团股份有限公司 | Fan head and bladeless fan |
| CN109882336A (en) * | 2019-03-11 | 2019-06-14 | 西华大学 | A kind of impulse turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |