CN1949363A - Silencer - Google Patents
Silencer Download PDFInfo
- Publication number
- CN1949363A CN1949363A CN 200510044909 CN200510044909A CN1949363A CN 1949363 A CN1949363 A CN 1949363A CN 200510044909 CN200510044909 CN 200510044909 CN 200510044909 A CN200510044909 A CN 200510044909A CN 1949363 A CN1949363 A CN 1949363A
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- layer
- noise reduction
- reduction layer
- wooden
- coat
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to a muffling device that includes box. The feature is that: muffling inner layer and reinforced outer layer are included in box. And the muffling layer is compounded by several muffling layer. Wood material is set at the middle of several muffling layers. And the reinforced layer is formed by wood material. The invention could sharply decrease the cost of material, lighten weight of box and improve muffling effect.
Description
Technical field
The present invention relates to a kind of quieter that is used for various sound sources are carried out noise reduction.
Background technology
The cover wall of existing a kind of noise reduction acoustic hood as shown in Figure 1, be to constitute by the sound-absorbing material layer 5 of internal layer, middle pitch glass mat 6 and outermost steel plate 7, this noise reduction acoustic hood can only pass through a consumption of 5 pairs of built-in sound generating of sound-absorbing material layer, and pitch glass mat 6 and outermost steel plate 7 just play the effect of strengthening resistance to bending, reducing resonance, any effect is not played in noise reduction, thereby passing the cover wall, to be transmitted to outside sound still very strong, and its erasure effect is good inadequately.
Summary of the invention
The object of the present invention is to provide a kind of quieter, this installs good muffling effect.
The present invention constitutes like this, comprise casing, it is characterized in that: described casing is made of the noise reduction layer and the outer field back-up coat of internal layer, and described noise reduction layer is composited by several layers noise reduction layer, is provided with the wooden noise reduction layer that is made of wood materials at the middle part of several layers noise reduction layer; Described back-up coat is made of wood materials.
During use, the various sound sources of noise reduction that need can be put into casing, when the sound wave that sends when sound source arrives each layer noise reduction layer, at first progressively weakened at each layer noise reduction layer, when particularly passing through wooden noise reduction layer,, sound is weakened greatly because wood fibre is staggered; Then when weakened sound wave arrives back-up coat, because back-up coat also adopts wood materials to constitute, thereby can make full use of that wood materials internal fiber tissue is staggered, the hole distributes innumerable and disordered characteristic, last sound wave by its conduction is played good obstruct weakening effect, thereby the effect of further noise reduction is played in the effect that both played and reinforced casing, reduces resonance again.
Than prior art, the present invention has replaced to the shell that is made of wood materials with the metal shell that quieter adopted in the past, not only greatly reduce material cost, alleviated the weight of casing, and the most important thing is that its erasure effect has obtained obvious improvement.
Description of drawings
Fig. 1 is the section partial sectional view of existing a kind of quieter.
Fig. 2 is the casing section partial sectional view of quieter of the present invention.
Embodiment
The specific embodiment of the invention comprises casing, it is characterized in that: described casing is made of the noise reduction layer 1 and the outer field back-up coat 2 of internal layer, described noise reduction layer is composited by several layers noise reduction layer, is provided with the wooden noise reduction layer 12 that is made of wood materials at the middle part of several layers noise reduction layer; Described back-up coat is made of wood materials.
In order to improve erasure effect, the wood materials that constitutes wooden noise reduction layer and back-up coat mixes compacting by wood chip and forms with glue, make that the internal fiber institutional framework of wooden noise reduction layer and back-up coat is staggered more mixed and disorderly, so not only erasure effect significantly improves, and, the intensity of wooden noise reduction layer and back-up coat also can be guaranteed because wood chip mixes compressed togetherly with glue.
Wherein, each layer structure and the noise reduction principle that constitute the noise reduction layer are described as follows: the noise reduction damping layer 11 of the noise reduction layer of (1) innermost layer for being made of microcellular foam, and be densely covered with some taper toy trumpets duct 3 on it, the opening in described taper toy trumpet duct dwindles from the inside to the outside successively.As shown in Figure 2, when the sound source sonic propagation arrived this layer, a part of medial surface at this layer is absorbed subdued reflection (shown in 1.), and another part enters taper toy trumpet duct, is absorbed, subdues, reflects and cancel out each other (shown in 2.) on the tapering wall.
(2) outside of noise reduction damping layer is provided with the wooden noise reduction layer 12 that is made of wood materials; For the wavelength that changes sound wave to reach erasure effect, specifically adding man-hour, also can on above-mentioned wooden noise reduction layer, be densely covered with and the corresponding aperture 4 in taper toy trumpet duct.Part is directly passed sound wave that taper toy trumpet duct arrives this wooden noise reduction layer and is changed wavelength, becomes more irregular sound wave and be transmitted to down one deck by aperture; And another part is absorbed at the medial surface of noise reduction damping layer and subdues the remaining acoustic wave segment in reflection back and enter wooden noise reduction layer because of the principle of solid conduction, is absorbed at this layer and also is transmitted to following one deck after subduing.
(3) be provided with air layer 13 and fine-celled foam damping layer 14 successively between above-mentioned wooden noise reduction layer and the back-up coat, the medial surface that described fine-celled foam damping layer is adjacent with air layer is rough surface.The sound wave that is transmitted to air layer from last layer does not have solid conductivity because of air layer, thereby can reduce the resonance that sound wave causes greatly, and pass the sound wave that air layer arrives the fine-celled foam damping layer, between the lateral surface of rough medial surface of fine-celled foam damping layer and wooden noise reduction layer, reflect mutually, cancel each other and subdue (shown in 3.) greatly.
Already very faint by the sound wave of all noise reduction layers arrival outermost layer back-up coats at last, under the further sound deadening of the back-up coat that is made of wood materials, nearly all sound wave all has been eliminated again.
Quieter of the present invention not only cost is low, in light weight, and good muffling effect, and it is applied and will effectively solve the noise reduction problem of various sound sources.
Claims (6)
1. quieter, comprise casing, it is characterized in that: described casing is made of the noise reduction layer and the outer field back-up coat of internal layer, and described noise reduction layer is composited by several layers noise reduction layer, is provided with the wooden noise reduction layer that is made of wood materials at the middle part of several layers noise reduction layer; Described back-up coat is made of wood materials.
2. quieter according to claim 1 is characterized in that: the wood materials that constitutes wooden noise reduction layer and back-up coat mixes compacting by wood chip and forms with glue.
3. quieter according to claim 1 and 2, it is characterized in that: the noise reduction damping layer of the noise reduction layer of innermost layer for constituting by microcellular foam, and be densely covered with some taper toy trumpets duct on it, the opening in described taper toy trumpet duct dwindles from the inside to the outside successively.
4. quieter according to claim 3 is characterized in that: the outside of noise reduction damping layer is provided with the wooden noise reduction layer that is made of wood materials.
5. quieter according to claim 4 is characterized in that: be densely covered with on the described wooden noise reduction layer and the corresponding aperture in taper toy trumpet duct.
6. quieter according to claim 5 is characterized in that: be provided with air layer and fine-celled foam damping layer successively between described wooden noise reduction layer and the back-up coat, the medial surface that described fine-celled foam damping layer is adjacent with air layer is rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510044909 CN1949363A (en) | 2005-10-15 | 2005-10-15 | Silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510044909 CN1949363A (en) | 2005-10-15 | 2005-10-15 | Silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1949363A true CN1949363A (en) | 2007-04-18 |
Family
ID=38018854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510044909 Pending CN1949363A (en) | 2005-10-15 | 2005-10-15 | Silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1949363A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251990A (en) * | 2011-07-15 | 2011-11-23 | 韩真五 | Air pump muffler |
| US8948411B1 (en) | 2014-02-18 | 2015-02-03 | Scott A. Moser | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US9253299B2 (en) | 2014-02-18 | 2016-02-02 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US9386135B2 (en) | 2014-05-16 | 2016-07-05 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US9525765B2 (en) | 2014-02-18 | 2016-12-20 | Quiet, Inc. | Ergonomic anechoic anti-noise canceling chamber for use with a communication device and related methods |
| CN106320548A (en) * | 2016-11-02 | 2017-01-11 | 山西尚风抑风墙科技有限公司 | Manufacturing process of sound shielding device |
| WO2017024987A1 (en) * | 2015-08-07 | 2017-02-16 | Sound Solutions International Co., Ltd. | Loudspeaker device having foam insert to improve gas distribution in sound adsorber material |
| US9576567B2 (en) | 2014-02-18 | 2017-02-21 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US9614945B1 (en) | 2014-02-18 | 2017-04-04 | Quiet, Inc. | Anti-noise canceling headset and related methods |
| CN108582899A (en) * | 2018-04-04 | 2018-09-28 | 佛山京联科技信息咨询有限公司 | A kind of composite sound-absorbing Oxford cloth |
| CN109985800A (en) * | 2019-04-15 | 2019-07-09 | 安徽工程大学 | A kind of integrated apparatus of mechanical engineering protection type sandstone automatic sorting and collection |
-
2005
- 2005-10-15 CN CN 200510044909 patent/CN1949363A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251990A (en) * | 2011-07-15 | 2011-11-23 | 韩真五 | Air pump muffler |
| US9576567B2 (en) | 2014-02-18 | 2017-02-21 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US8948411B1 (en) | 2014-02-18 | 2015-02-03 | Scott A. Moser | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US9253299B2 (en) | 2014-02-18 | 2016-02-02 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| US9525765B2 (en) | 2014-02-18 | 2016-12-20 | Quiet, Inc. | Ergonomic anechoic anti-noise canceling chamber for use with a communication device and related methods |
| US9614945B1 (en) | 2014-02-18 | 2017-04-04 | Quiet, Inc. | Anti-noise canceling headset and related methods |
| US9386135B2 (en) | 2014-05-16 | 2016-07-05 | Quiet, Inc. | Ergonomic tubular anechoic chambers for use with a communication device and related methods |
| WO2017024987A1 (en) * | 2015-08-07 | 2017-02-16 | Sound Solutions International Co., Ltd. | Loudspeaker device having foam insert to improve gas distribution in sound adsorber material |
| CN106320548A (en) * | 2016-11-02 | 2017-01-11 | 山西尚风抑风墙科技有限公司 | Manufacturing process of sound shielding device |
| CN106320548B (en) * | 2016-11-02 | 2019-05-21 | 山西尚风抑风墙科技有限公司 | Sound screening arrangement manufacturing process |
| CN108582899A (en) * | 2018-04-04 | 2018-09-28 | 佛山京联科技信息咨询有限公司 | A kind of composite sound-absorbing Oxford cloth |
| CN109985800A (en) * | 2019-04-15 | 2019-07-09 | 安徽工程大学 | A kind of integrated apparatus of mechanical engineering protection type sandstone automatic sorting and collection |
| CN109985800B (en) * | 2019-04-15 | 2024-02-20 | 安徽工程大学 | Integrated device for automatically sorting and collecting protective sand and stones for mechanical engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |