CN103469909A - Sound-absorbing wedge - Google Patents
Sound-absorbing wedge Download PDFInfo
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- CN103469909A CN103469909A CN2013103527712A CN201310352771A CN103469909A CN 103469909 A CN103469909 A CN 103469909A CN 2013103527712 A CN2013103527712 A CN 2013103527712A CN 201310352771 A CN201310352771 A CN 201310352771A CN 103469909 A CN103469909 A CN 103469909A
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- absorbing wedge
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- wedge
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Abstract
The invention provides a sound-absorbing wedge, which comprises a base part and a pointed part connected with the base part, wherein a plurality of sound-absorbing holes are uniformly distributed in the surface of the pointed part to improve the sound-absorbing effect of the sound-absorbing wedge. The surface gap of the sound-absorbing wedge is enlarged, more sound waves are reflected inside the sound-absorbing wedge, the sound-absorbing rate can be increased by 30 percent in maximum, and a manufacturing process is simple.
Description
Technical field
The present invention relates to a kind of sound-absorbing wedge.
Background technology
Traditional sound-absorbing wedge mainly contains two kinds.The first is that the skeleton of sound-absorbing wedge is to adopt round steel to be welded, damping material is centrifugally glass-wool or other damping materials, after tamping at outer bread one deck glass fabric of acoustical cotton, the contaminated environment in case acoustical cotton leaks outside, the outside of glass fabric adopts sound-absorbing step parcel.Be characterized in multifilament and multiple-void structure due to its internal glass fibers cotton, sound is easy to reflect between its micropore, thereby makes acoustic energy be converted to heat energy, improves sound-absorbing effect.But this type of sound-absorbing wedge manufacture craft is extremely complicated.The second is to adopt the direct excision forming of polyurethanes, and manufacture craft is simple.But due to its properties of materials, its micropore is very little, and sound is difficult to penetrate, thereby its sound-absorbing effect is not good.
Summary of the invention
The object of the invention is to, for above-mentioned defect of the prior art, provides a kind of manufacture craft simple, and the obvious modified sound-absorbing wedge strengthened of sound-absorbing effect.
For achieving the above object, the present invention has adopted following technical scheme: a kind of sound-absorbing wedge, comprise base portion and the tip be connected with base portion, it is characterized in that: the surface of described tip be provided be evenly distributed a plurality of sound-absorption hole to improve the sound-absorbing effect of described sound-absorbing wedge.
In addition, the present invention also provides following attached technical scheme:
The pore diameter range of described sound-absorption hole is between 3 millimeters to 10 millimeters.
The pitch-row scope of described a plurality of sound-absorption hole is between 3 millimeters to 10 millimeters.
Described sound-absorbing wedge is made by polyurethane material.
Than prior art, advantage of the present invention is: the surface of the tip of this sound-absorbing wedge be provided be arrayed a plurality of sound-absorption hole to improve the sound-absorbing effect of described sound-absorbing wedge, so, increased the surface void of this sound-absorbing wedge, allow sound wave more within it section reflected, make its acoustic absorptivity the highest increase by 30% and manufacture craft simple.
The accompanying drawing explanation
Fig. 1 is the stereogram corresponding to the sound-absorbing wedge of preferred embodiment of the present invention.
The specific embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solution of the present invention is further non-limitingly described in detail.
Shown in Fig. 1, corresponding to the sound-absorbing wedge of preferred embodiment of the present invention, it is the essential sound absorption construction in anechoic chamber, and its integral body is made by polyurethane material.This sound-absorbing wedge comprises base portion 3 and the tip 4 be connected with base portion 3, and wherein base portion 3 is formed in one with tip 4.In addition, be provided with on the external surface of tip 4 and be a plurality of sound-absorption hole 6 of evenly arranging, sound-absorption hole 6, for increasing this sound-absorbing wedge surface void, makes the acoustic reflection scope increase, and improves the sound-absorbing effect of this sound-absorbing wedge.Wherein, the pore size scope of sound-absorption hole 6 is between 3 millimeters to 10 millimeters, and the pitch-row scope is between 3 millimeters to 10 millimeters.Known through actual test, when the aperture of sound-absorption hole 6 is 3 millimeters, when pitch-row is 3 millimeters, acoustic absorptivity can increase by 20%; And when the aperture that attracts hole 6 be 10 millimeters, pitch-row is 10 millimeters and is, acoustic absorptivity can increase by 30%.
It is pointed out that above-mentioned preferred embodiment is only explanation technical conceive of the present invention and characteristics, its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. a sound-absorbing wedge, comprise base portion and the tip be connected with base portion, it is characterized in that: the surface of described tip be provided be evenly distributed a plurality of sound-absorption hole to improve the sound-absorbing effect of described sound-absorbing wedge.
2. sound-absorbing wedge according to claim 1, it is characterized in that: the pore diameter range of described sound-absorption hole is between 3 millimeters to 10 millimeters.
3. sound-absorbing wedge according to claim 1, it is characterized in that: the pitch-row scope of described a plurality of sound-absorption hole is between 3 millimeters to 10 millimeters.
4. sound-absorbing wedge according to claim 1, it is characterized in that: described sound-absorbing wedge is made by polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103527712A CN103469909A (en) | 2013-08-14 | 2013-08-14 | Sound-absorbing wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103527712A CN103469909A (en) | 2013-08-14 | 2013-08-14 | Sound-absorbing wedge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103469909A true CN103469909A (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103527712A Pending CN103469909A (en) | 2013-08-14 | 2013-08-14 | Sound-absorbing wedge |
Country Status (1)
| Country | Link |
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| CN (1) | CN103469909A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155704A (en) * | 2015-06-19 | 2015-12-16 | 江苏英思达科技有限公司 | Double-layer metal wedge and manufacturing method thereof |
| CN105484385A (en) * | 2016-01-13 | 2016-04-13 | 刘彩声 | Combined type acoustical wall |
| CN107119811A (en) * | 2017-06-09 | 2017-09-01 | 苏州岸肯电子科技有限公司 | High acoustic absorptivity sound absorption wedge |
| CN107514858A (en) * | 2017-07-12 | 2017-12-26 | 青岛海尔股份有限公司 | A kind of compressor bin for refrigerator and there is its refrigerator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6352134B1 (en) * | 2000-07-10 | 2002-03-05 | Chao Hsiang Wang | Acoustic board |
| CN2680754Y (en) * | 2004-03-02 | 2005-02-23 | 北京声望声电技术有限公司 | Wedge absorber |
| US20050098379A1 (en) * | 2003-10-09 | 2005-05-12 | Takahiko Sato | Noise absorbing structure and noise absorbing/insulating structure |
| CN101967858A (en) * | 2010-08-30 | 2011-02-09 | 北京科奥克声学技术有限公司 | Wedge absorber of metal orifice plate |
| US8006802B2 (en) * | 2008-09-02 | 2011-08-30 | Yamaha Corporation | Acoustic structure and acoustic room |
-
2013
- 2013-08-14 CN CN2013103527712A patent/CN103469909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6352134B1 (en) * | 2000-07-10 | 2002-03-05 | Chao Hsiang Wang | Acoustic board |
| US20050098379A1 (en) * | 2003-10-09 | 2005-05-12 | Takahiko Sato | Noise absorbing structure and noise absorbing/insulating structure |
| CN2680754Y (en) * | 2004-03-02 | 2005-02-23 | 北京声望声电技术有限公司 | Wedge absorber |
| US8006802B2 (en) * | 2008-09-02 | 2011-08-30 | Yamaha Corporation | Acoustic structure and acoustic room |
| CN101967858A (en) * | 2010-08-30 | 2011-02-09 | 北京科奥克声学技术有限公司 | Wedge absorber of metal orifice plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155704A (en) * | 2015-06-19 | 2015-12-16 | 江苏英思达科技有限公司 | Double-layer metal wedge and manufacturing method thereof |
| CN105155704B (en) * | 2015-06-19 | 2018-05-29 | 江苏英思达科技有限公司 | A kind of double-level-metal wedge and preparation method thereof |
| CN105484385A (en) * | 2016-01-13 | 2016-04-13 | 刘彩声 | Combined type acoustical wall |
| CN107119811A (en) * | 2017-06-09 | 2017-09-01 | 苏州岸肯电子科技有限公司 | High acoustic absorptivity sound absorption wedge |
| CN107514858A (en) * | 2017-07-12 | 2017-12-26 | 青岛海尔股份有限公司 | A kind of compressor bin for refrigerator and there is its refrigerator |
| CN107514858B (en) * | 2017-07-12 | 2020-04-21 | 青岛海尔股份有限公司 | Compressor bin for refrigerator and refrigerator with same |
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Application publication date: 20131225 |