CN103730107A - Interference silencer - Google Patents
Interference silencer Download PDFInfo
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- CN103730107A CN103730107A CN201210410227.4A CN201210410227A CN103730107A CN 103730107 A CN103730107 A CN 103730107A CN 201210410227 A CN201210410227 A CN 201210410227A CN 103730107 A CN103730107 A CN 103730107A
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- sound
- sound wave
- chamber
- leading
- noise elimination
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The embodiment of the invention discloses an interference silencer which comprises a sound leading-in pipe, a silencing cavity and a sound leading-out pipe. One end of the sound leading-in pipe and one end of the sound leading-out pipe are located in two ends of the silencing cavity respectively and are matched with a sealing disc and a sealing ring to divide the silencing cavity into a first sound wave superposition chamber, a second sound wave superposition chamber and a sound absorption chamber. A plurality of sound wave leading-in holes are formed in the walls of the leading-in pipe and one end of the sound leading-out pipe located in the first sound wave superposition chamber and the second sound wave superposition chamber and the outer edge of the sealing disc respectively. The interference silencer is simple in structure, low in cost, convenient to use, good in practicability, and capable of being widely applied to occasions needing eliminating noise.
Description
Technical field
The present invention relates to a kind of interference exhaust box, relate in particular to a kind of exhaust box with sound wave stack chamber and anechoic room.
Background technology
City noise pollution is serious at present, and automobile quantity is fast-developing, and automobile enforcement amount increases, plant produced noiselessness is processed, therefore automobile, factory noise etc. is carried out on noise reduction being still of great importance, and acoustic wave filter structure is complicated at present, cost high being unfavorable for is widely used.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, provides a kind of simple in structure, the interference exhaust box that cost is low.Can be widely used in noise reduction occasion.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of interference exhaust box, comprise sound ingress pipe, noise elimination cavity, sound delivery line, described sound ingress pipe and described sound delivery line one end are placed in respectively in described noise elimination cavity two ends, and coordinate airtight dish and airtight annulus that described noise elimination cavity is separated into respectively to first, second sound wave stack chamber and anechoic room; Be placed in described first, second sound wave stack described sound ingress pipe of chamber and the tube wall of described sound delivery line and described airtight dish outer rim and be provided with several acoustic waveguide hand-holes.
Further, described first, second sound wave stack chamber and anechoic room are all filled acoustical material.
Further, described sound ingress pipe and described sound delivery line are placed in the integral multiple that the degree of depth of described noise elimination cavity is half wavelength of sound.
Implement the embodiment of the present invention, can obtain simple in structurely, the interference exhaust box that cost is low, easy to use, has good practicality, can be widely used in the various occasions that abate the noise.
Accompanying drawing explanation
Fig. 1 one-piece construction schematic diagram of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail.
With reference to the structural representation shown in Fig. 1.
In the present embodiment, the present invention includes sound ingress pipe 10, noise elimination cavity 20, sound delivery line 30, one end 101 of sound ingress pipe 10 and one end 301 of sound delivery line 30 are placed in respectively in the two ends of noise elimination cavity 20, the two ends of noise elimination cavity 20 seal with airtight annulus 201,202 respectively, and be placed in one end 101 of the sound ingress pipe 10 in noise elimination cavity 20 and one end 301 of sound delivery line 30 airtight dish 203,204 is set respectively, noise elimination cavity is separated into first wave stack chamber 40, the second sound wave stack chamber 50 and anechoic room 60.
Its tube wall of part that first wave stack chamber 40 is placed in noise elimination cavity 20 arranges several acoustic waveguide hand-holes 401, and similarly, its tube wall of part that the second sound wave stack chamber 50 is placed in noise elimination cavity 20 arranges several acoustic waveguide hand-holes 501.
The outward flange that airtight dish 203,204 is positioned at first wave stack chamber 40 and the second sound wave stack chamber 50 arranges respectively several acoustic waveguide hand-holes 601,602.
The first wave stack chamber 40, the second sound wave stack chamber 50 and the anechoic room 60 that between sound ingress pipe 10, sound delivery line 20, airtight dish 203, airtight dish 20, noise elimination cavity 20, form are all filled acoustical material.
What need to describe is, sound ingress pipe 10, sound delivery line 20 are placed in the integral multiple that the degree of depth of described noise elimination cavity 20 is half wavelength of sound, sound wave is entered by producing frequency, amplitude and sound wave equidirectional is contrary originally reflective sound wave 203 reflections of airtight dish from sound ingress pipe 10, and disappear mutually with original sound wave generation stack, again by acoustic waveguide hand-hole 601 enter first wave stack chamber 40, anechoic room 60 is eliminated the noise, then by acoustic waveguide hand-hole 602 enter the second sound wave stack chamber 50 further strengthening eliminate the noise.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (3)
1. an interference exhaust box, it is characterized in that, comprise sound ingress pipe, noise elimination cavity, sound delivery line, described sound ingress pipe and described sound delivery line one end are placed in respectively in described noise elimination cavity two ends, and coordinate airtight dish and airtight annulus that described noise elimination cavity is separated into respectively to first, second sound wave stack chamber and anechoic room; Be placed in described first, second sound wave stack described sound ingress pipe of chamber and the tube wall of described sound delivery line and described airtight dish outer rim and be provided with several acoustic waveguide hand-holes.
2. interference exhaust box according to claim 1, is characterized in that, described first, second sound wave stack chamber and anechoic room are all filled acoustical material.
3. interference exhaust box according to claim 1 and 2, is characterized in that, described sound ingress pipe and described sound delivery line are placed in the integral multiple that the degree of depth of described noise elimination cavity is half wavelength of sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410227.4A CN103730107A (en) | 2012-10-16 | 2012-10-16 | Interference silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410227.4A CN103730107A (en) | 2012-10-16 | 2012-10-16 | Interference silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103730107A true CN103730107A (en) | 2014-04-16 |
Family
ID=50454155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210410227.4A Pending CN103730107A (en) | 2012-10-16 | 2012-10-16 | Interference silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103730107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448646A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Adsorption-type wave absorber |
-
2012
- 2012-10-16 CN CN201210410227.4A patent/CN103730107A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448646A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Adsorption-type wave absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 511442 Guangdong Province, Guangzhou City Southern towns Panyu District Hungnam Avenue No. 398 Guangzhou agile foot of the mountain 4-603 Applicant after: Wu Quanru Address before: 511442 Guangdong Province, Guangzhou City Southern towns Panyu District Hungnam Avenue 398, Guangzhou Garden Music Garden foot of the mountain 4-603 Applicant before: Wu Quanru |
|
| DD01 | Delivery of document by public notice |
Addressee: Wu Quanru Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 511442 Guangdong Province, Guangzhou City Southern towns Panyu District Hungnam Avenue No. 398 Guangzhou agile as good as water 2-701 Applicant after: Wu Quanru Address before: 511442 Guangdong Province, Guangzhou City Southern towns Panyu District Hungnam Avenue No. 398 Guangzhou agile foot of the mountain 4-603 Applicant before: Wu Quanru |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |