CN202093814U - Broadband sound absorber - Google Patents
Broadband sound absorber Download PDFInfo
- Publication number
- CN202093814U CN202093814U CN2011201371547U CN201120137154U CN202093814U CN 202093814 U CN202093814 U CN 202093814U CN 2011201371547 U CN2011201371547 U CN 2011201371547U CN 201120137154 U CN201120137154 U CN 201120137154U CN 202093814 U CN202093814 U CN 202093814U
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- China
- Prior art keywords
- sound
- frame
- broad band
- cavity
- absorption body
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Abstract
The utility model belongs to the field of sound processing equipment, and discloses a broadband sound absorber. The sound absorber comprises a frame, wherein a porous sound absorbing material is filled in the frame; the filling thickness of the porous sound absorbing material is smaller than the thickness of the frame; a cavity is formed in the frame and below the porous sound absorbing material; and a mounting pendant is arranged in the cavity. The utility model aims to provide the broadband sound absorber which has broad sound absorption band, high debugging performance and convenience in installation.
Description
Technical field
The utility model relates to the sound processing apparatus field, relates in particular to a kind of broad band sound absorption body.
Background technology
Architectural acoustics is decorated for example sound-absorbing Soft Roll of the widely used poriness acoustical material in field at present, wood wool abatvoix etc., and the sound-absorbing frequency band is narrow, only absorbs medium-high frequency, and it is poor to absorb low-frequency effect, and complexity is installed, and long construction period all needs keel to install.Simultaneously because acoustic simulation in early stage design of architectural acoustics field and actual acoustic situation have the characteristics of error, the dissatisfied situation of rectification that needs of acoustic efficiency was also a lot of after engineering was finished, and the fund manpower that the redesign construction of the dismounting of traditional poriness absorptive product and engineering decorative outward appearance need expend is also very huge.
The utility model content
But the purpose of this utility model is to provide a kind of sound-absorbing bandwidth debug performance high broad band sound absorption body.
Complete skill scheme of the present utility model is, a kind of broad band sound absorption body comprises a frame, and described frame inside is filled with the poriness acoustical material; The filling thickness of described poriness acoustical material is less than the thickness of described frame; The below of described frame inside, poriness acoustical material is provided with a cavity.
Preferably, be provided with one in the described cavity suspension member is installed.
Optionally, described installation suspension member is that wedge shape is installed suspension member.
Optionally, described sound absorber is coated with one deck fabric.
Optionally, described sound absorber is coated with one deck leather class facing.
Therefore a kind of broad band sound absorption body of the utility model has following beneficial effect:
The utility model comprises a frame, be provided with certain thickness poriness acoustical material in the frame, in the frame, be provided with a cavity below the poriness acoustical material, when sound incides on the sound absorber, the poriness acoustical material can be with big portion meeting acoustic absorption, unnecessary not absorption, can pass acoustic absorbant and enter cavity, sound is after being subjected to the stopping of wall, meeting is the reflected back acoustic absorbant again, in cavity, come back reflective like this,, be implemented in the sound absorption qualities maximization of this device under the certain thickness constantly by the porous sound absorbing absorbed.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
Fig. 1 is 1 one kinds of broad band sound absorption bodies of embodiment structure synoptic diagram;
Fig. 2 is 1 one kinds of broad band sound absorption body side surfaces of embodiment structural representation;
Fig. 3 does not transmit synoptic diagram for embodiment 1 has installing broad-band sound absorber sound wave;
Fig. 4 is that embodiment 1 installing broad-band sound absorber sound wave transmits synoptic diagram.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Embodiment 1:
A kind of broad band sound absorption body of present embodiment comprises a hard frame 1, and frame 1 is coated with one deck fabric or leather class facing 2; Frame 1 inside is filled with poriness acoustical material 3, and the thickness of poriness acoustical material 3 is less than the thickness of frame 1; The below of frame 1 inside, porous star acoustical material 3 is provided with a cavity 4; Be provided with the installation suspension member 5 of a wedge shape in the cavity 4, on wall with in the cavity 4, suspension member 5 corresponding positions are installed are provided with another and mutual interlock of suspension member 6, two installations suspension member are installed with wedge shape.During installation with the broad band sound absorption body along wall to lower slider, two wedge shapes that make are installed the mutual interlock of suspension member; When sound wave incides on the broad band sound absorption body, big portion can be absorbed by poriness acoustical material 3 by sound wave, only remaining a part of sound wave can pass poriness acoustical material 3 and arrive in the cavity 4 at rear portion, sound wave is subjected to stopping of wall very much in cavity 4, reflect, and comes back reflective in cavity 4 like this, constantly absorbed by porous sound absorbing material 3, open back side design, the cavity that utilizes wall to form has been realized the sound absorption qualities maximization of this device under the certain thickness.But the debug performance of broad band sound absorption body is also very obvious, and height person can constantly change the position and the quantity of broad band sound absorption body according to the sense of hearing or the test at scene, reaches optimum efficiency.
As shown in Figure 3, at a typical space that does not pass through acoustic treatment, audio amplifier 7 begins sounding as sound source, front wall wall reflection sound wave 8, and side wall wall reflection sound 10 is equally matched with audio amplifier direct sound wave 9 volumes, can upset direct sound wave 9, allow people's ear produce auditory fatigue, simultaneously because reflective sound wave 8 process primary events are more late to the time of intelligent's ear than direct sound wave 9, similarly reflected sound can cause the reverberation last or end syllable, the enable voice muddiness; As shown in Figure 4, same space is an acoustic reflection point installing broad-band sound absorber at key position only still, and reflective sound wave 8,10 all is absorbed, and has only the audio amplifier direct sound wave directly to arrive intelligent's ear, and sound can be very clear.Simultaneously, the broadband of broad band sound absorption body absorbs, and makes the whole minimizing of sound wave frequency range, avoids only sponging a certain frequency range as far as possible, and as high frequency, and remaining medium and low frequency and direct sound wave mix, and the sound that people's ear is heard has bigger difference with original sound source.The debugging property of broad band sound absorption body is also very obvious here, and sound person can constantly change the position and the quantity of broad band sound absorption body according to the sense of hearing or the test at scene, reaches optimum efficiency.
Therefore, a kind of broad band sound absorption body of the utility model, the utility model comprises a frame, be provided with certain thickness poriness acoustical material in the frame, in the frame, be provided with a cavity below the poriness acoustical material, when sound incides on the sound absorber, the poriness acoustical material can be with big portion meeting acoustic absorption, unnecessaryly not do not absorb, can pass acoustic absorbant and enter cavity, sound is after being subjected to the stopping of wall, meeting is the reflected back acoustic absorbant again, in cavity, come back reflective like this,, be implemented in the sound absorption qualities maximization of this device under the certain thickness constantly by the porous sound absorbing absorbed.But the debug performance of broad band sound absorption body is also very obvious, and height person can constantly change the position and the quantity of broad band sound absorption body according to the sense of hearing or the test at scene, reaches optimum efficiency; The back of broad band sound absorption body is provided with the installation suspension member, can not increase the thickness of broad band sound absorption body, installs very convenient simultaneously.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a broad band sound absorption body is characterized in that, comprises a frame, and described frame inside is filled with the poriness acoustical material; The filling thickness of described poriness acoustical material is less than the thickness of described frame; The below of described frame inside, poriness acoustical material is provided with a cavity.
2. a kind of broad band sound absorption body according to claim 1 is characterized in that, is provided with one in the described cavity suspension member is installed.
3. a kind of broad band sound absorption body according to claim 2 is characterized in that, described installation suspension member is that wedge shape is installed suspension member.
4. a kind of broad band sound absorption body according to claim 1 is characterized in that, described sound absorber is coated with one deck fabric or leather class facing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201371547U CN202093814U (en) | 2011-05-04 | 2011-05-04 | Broadband sound absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201371547U CN202093814U (en) | 2011-05-04 | 2011-05-04 | Broadband sound absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202093814U true CN202093814U (en) | 2011-12-28 |
Family
ID=45368867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201371547U Expired - Fee Related CN202093814U (en) | 2011-05-04 | 2011-05-04 | Broadband sound absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202093814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299781A (en) * | 2017-07-24 | 2017-10-27 | 苏州岸肯电子科技有限公司 | A kind of adjustable listening room of acoustic efficiency |
-
2011
- 2011-05-04 CN CN2011201371547U patent/CN202093814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299781A (en) * | 2017-07-24 | 2017-10-27 | 苏州岸肯电子科技有限公司 | A kind of adjustable listening room of acoustic efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20160504 |