CN207558413U - A kind of wedge absorber of special construction - Google Patents
A kind of wedge absorber of special construction Download PDFInfo
- Publication number
- CN207558413U CN207558413U CN201721518546.1U CN201721518546U CN207558413U CN 207558413 U CN207558413 U CN 207558413U CN 201721518546 U CN201721518546 U CN 201721518546U CN 207558413 U CN207558413 U CN 207558413U
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- China
- Prior art keywords
- sound
- layer
- absorbing
- special construction
- tip
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- 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.)
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Abstract
The utility model discloses a kind of wedge absorber of special construction, the base portion (2) being connected including tip (1) and with the tip (1), the tip (1) includes multiple layer sound suction layer (3,4,5,6), the unit weight of the sound-absorbing material of the sound absorbing layer (3,4,5,6) is different, and the unit weight ecto-entad of the sound-absorbing material of the sound absorbing layer (3,4,5,6) gradually increases weight.The wedge absorber of the special construction of the utility model causes anechoic room wedge absorber in the case where not increasing volume, has better effect in middle low-frequency range sound-absorbing.
Description
Technical field
The utility model is related to a kind of wedge absorbers of special construction.
Background technology
In anechoic chamber dss^gn, sound absorption requirement is mainly reached by wedge absorber, wedge absorber is commonly divided into tip
With base portion two parts.There are air layers between sharp wall and wall surface during installation.From the tip of wedge to base portion, acoustic impedance is from sky
The characteristic impedance of gas is gradually transitioned into the impedance of porous material, it is thus achieved that good impedance matching, obtains incident acoustic energy
It is absorbed to efficient.Its structure of current wedge is that the skeleton of definite shape and size is made of the steel wire of diameter 3.2-3.5mm,
Outside puts on the covering materials such as glass-fiber-fabric, plastic window screening, and the inside is filled with porous material.However, existing wedge packing material is all
It is unique one kind, such as mineral wool so that anechoic chamber's erasure effect is single, and existing wedge absorber cannot absorb well
The sound of middle low-frequency range to have better effect in middle low-frequency range sound-absorbing, needs to increase the volume of wedge absorber.
Utility model content
The purpose of this utility model is that for drawbacks described above of the prior art, a kind of sound absorption point of special construction is provided
It splits, has better effect in middle low-frequency range sound-absorbing.
To realize above-mentioned purpose of utility model, the utility model employs following technical solution：A kind of suction of special construction
Sound wedge, the base portion being connected including tip and with the tip, the tip include multiple layer sound suction layer, the suction of the sound absorbing layer
The unit weight of sound material is different, and the unit weight ecto-entad of the sound-absorbing material of the sound absorbing layer gradually increases weight.
In addition, the utility model also proposes following attached technical scheme：
The base portion includes multiple layer sound suction layer, and the unit weight of the sound-absorbing material of the sound absorbing layer is different, and the sound absorbing layer
The unit weight ecto-entad of sound-absorbing material gradually increases weight.
The sound-absorbing material includes acoustical cotton.
Compared with the prior art, the utility model has the advantage of：The wedge absorber of the special construction of the utility model by
The acoustical cotton composition of multilayer difference unit weight, outer layer successively increase the appearance of sound-absorbing material using the lighter acoustical cotton of unit weight, internal layer
Weight can increase the sound-absorbing of wedge centering low frequency so that anechoic room wedge is not in the case where increasing volume, in middle low frequency in this way
Section sound-absorbing has better effect.
Description of the drawings
Fig. 1 is the front view of the wedge absorber of the utility model special construction.
Fig. 2 is the front view of the embodiment of the wedge absorber of the utility model special construction.
Specific embodiment
Technical solutions of the utility model are made below in conjunction with preferred embodiment and its attached drawing further unrestricted detailed
Explanation.
As shown in Figure 1, the wedge absorber of special construction described in the utility model is fixed including tip 1, one end and tip 1
The base portion 2 of connection, tip 1 and base portion 2 include multiple layer sound suction layer, and the unit weight of the sound-absorbing material of sound absorbing layer is different, and outer layer
The unit weight weight of the volume to weight ratio internal layer sound absorbing layer of sound absorbing layer, during installation, the other end of base portion 2 is connect with wall surface (not shown), and is inhaled
There are air layers, sound between sound wedge and wall surface (not shown) successively to be absorbed from the tip of wedge absorber 1 to base portion 2.
Fig. 2 is one of preferred embodiment of the wedge absorber of the utility model special construction, as shown in Fig. 2, tip 1
Including the first sound absorbing layer 3, the second sound absorbing layer 4,5 and the 4th sound absorbing layer 6 of third sound absorbing layer, base portion 2 includes the 5th sound absorbing layer 7, the
Six sound absorbing layers 8 and the 7th sound absorbing layer 9, since sound is successively absorbed from the tip of wedge absorber 1 to base portion 2, herein
Definition is from 3 to the 7th sound absorbing layer 9 of the first sound absorbing layer for from outside to inside, the wedge absorber of the utility model special construction is producing
When, outer layer (including the first sound absorbing layer 3, the second sound absorbing layer 4 and third sound absorbing layer 5) using the lighter acoustical cotton of unit weight, such as
Mineral wool, internal layer successively increase sound-absorbing (including the 4th sound absorbing layer 6, the 5th sound absorbing layer 7, the 6th sound absorbing layer 8 and the 7th sound absorbing layer 9)
The unit weight of material can increase the sound-absorbing of wedge absorber centering low frequency in this way.
The wedge absorber of the utility model special construction is made of the acoustical cotton of multilayer difference unit weight, and outer layer uses volume to weight ratio
Lighter acoustical cotton, internal layer successively increase the unit weight of sound-absorbing material, can increase the sound-absorbing of wedge centering low frequency in this way so that disappear
Sound chamber's wedge has better effect in the case where not increasing volume, in middle low-frequency range sound-absorbing.
It should be pointed out that above-mentioned preferred embodiment is only to illustrate the technical concepts and features of the utility model, purpose
It is the content for allowing person skilled in the art that can understand the utility model and implements according to this, can not this reality be limited with this
With novel protection domain.All equivalent change or modifications substantially made according to the spirit of the present invention, should all cover in this reality
Within novel protection domain.
Claims (3)
1. a kind of wedge absorber of special construction, the base portion (2) being connected including tip (1) and with the tip (1), feature
It is：The tip (1) includes multiple layer sound suction layer (3,4,5,6), and the unit weight of the sound-absorbing material of the sound absorbing layer (3,4,5,6) is not
Together, and the unit weight ecto-entad of the sound-absorbing material of the sound absorbing layer (3,4,5,6) gradually increases weight.
2. the wedge absorber of special construction according to claim 1, it is characterised in that：The base portion (2) is inhaled including multilayer
Sound-absorbing layer (7,8,9), the unit weight of the sound-absorbing material of the sound absorbing layer (7,8,9) is different, and the sound absorber of the sound absorbing layer (7,8,9)
The unit weight ecto-entad of matter gradually increases weight.
3. the wedge absorber of special construction according to claim 1, it is characterised in that：The sound-absorbing material includes sound-absorbing
Cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721518546.1U CN207558413U (en) | 2017-11-15 | 2017-11-15 | A kind of wedge absorber of special construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721518546.1U CN207558413U (en) | 2017-11-15 | 2017-11-15 | A kind of wedge absorber of special construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207558413U true CN207558413U (en) | 2018-06-29 |
Family
ID=62681359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721518546.1U Expired - Fee Related CN207558413U (en) | 2017-11-15 | 2017-11-15 | A kind of wedge absorber of special construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207558413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107657946A (en) * | 2017-11-15 | 2018-02-02 | 苏州岸肯电子科技有限公司 | A kind of wedge absorber of special construction |
-
2017
- 2017-11-15 CN CN201721518546.1U patent/CN207558413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107657946A (en) * | 2017-11-15 | 2018-02-02 | 苏州岸肯电子科技有限公司 | A kind of wedge absorber of special construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20181115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |