CN206844365U - Spatial extent high efficiency composition sound insulating structure - Google Patents
Spatial extent high efficiency composition sound insulating structure Download PDFInfo
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- CN206844365U CN206844365U CN201720351459.5U CN201720351459U CN206844365U CN 206844365 U CN206844365 U CN 206844365U CN 201720351459 U CN201720351459 U CN 201720351459U CN 206844365 U CN206844365 U CN 206844365U
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- acoustic wave
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Abstract
It the utility model is related to a kind of spatial extent high efficiency composition sound insulating structure, including the basic unit that insulates against sound, basic unit insulate against sound as the conventional compound sound insulating structure of plate cavity plate, the side of sound insulation basic unit is compounded with low frequency absorption body, low frequency absorption body is hollow structure, low frequency absorption body is internally formed the channel of acoustic wave of continuous bending, channel of acoustic wave and sound insulation basic unit back to side be provided with acoustic wave inlet.The utility model extends Acoustic Wave Propagation approach by the channel of acoustic wave structure design of continuous bend inside low frequency absorption body, improve acoustic reactance, there is good defening effect for low-frequency noise, by adjusting the length of each channel of acoustic wave, different sound wave frequency band ranges can be directed to.
Description
Technical field
The utility model belong to sound insulating structure material technical field, more particularly to a kind of spatial extent high efficiency composition
Sound insulating structure.
Background technology
In daily life, we can see all kinds of sound insulating structures everywhere, for example, door, window, wall, screen, sound barrier, every
Acoustic shell etc., to tackle various irritating noises.Research shows that sound insulation can substantially defer to mass law, that is, want to have
Defening effect, it is desirable to the sound insulating structure of larger surface density, want the sound insulation room effect obtained, it is necessary to relatively thicker
Sound insulating structure.Certainly, we can carry out " surmounting " mass law by some composite constructions.
Common at present is that multi-layer sheet adds cavity (or sound absorption damping layer) to reach the sound insulating structure of optimization, nevertheless,
When in face of low-frequency noise, still positive effect is bad.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of spatial extent high efficiency composition sound insulating structure, for low
Frequency noise has good defening effect.
The utility model solve technical scheme used by its technical problem be to provide a kind of spatial extent high efficiency composition every
Acoustic form, including sound insulation basic unit, the sound insulation basic unit are conventional plate-compound sound insulating structure of cavity-plate, the sound insulation basic unit
Side is compounded with low frequency absorption body, and the low frequency absorption body is hollow structure, and the low frequency absorption body is internally formed continuous, curved
Bent channel of acoustic wave, the channel of acoustic wave and sound insulation basic unit back to side be provided with acoustic wave inlet.
As a kind of preferable technical scheme of the utility model, by between vertical alternatively up and down inside the low frequency absorption body
Vertical S type channel of acoustic wave is formed every the dividing plate of setting.
As another preferable technical scheme of the utility model, pass through helical baffle plates shape inside the low frequency absorption body
The annular channel of acoustic wave of curl.
As another preferable technical scheme of the utility model, the sound insulation basic unit can also be plate-porous sound absorption material
The compound sound insulating structure of material-plate.
As another preferable technical scheme of the utility model, the acoustic wave inlet fills sound-absorbing porous material, institute
State acoustic wave inlet outer surface and PVF films or perforated plate are compound.
As another preferable technical scheme of the utility model, the low frequency absorption body is answered back to the side of sound insulation basic unit
Close cavity thin plate or perforated plate.
As another preferable technical scheme of the utility model, sound-absorbing porous material is filled inside the channel of acoustic wave.
As the further improvement to above-mentioned embodiment, the sound-absorbing porous material be rock wool, melamine foamed cotton,
Mineral wool, compacting cotton or melamine cotton.
Beneficial effect
In the utility model, by the sound insulation basic unit of routine and low frequency absorption bluk recombination, low frequency absorption intracoelomic cavity is designed to
The channel of acoustic wave structure of continuous bend, extends acoustic wave propagation path, and low-frequency sound wave enters low frequency absorption by acoustic wave inlet
Absorbed in vivo, by adjusting the length of channel of acoustic wave, different sound wave frequency band ranges can be directed to.Therefore, the utility model
There is good defening effect for low-frequency noise.
Brief description of the drawings
Fig. 1 is cross section structure diagram of the present utility model.
Fig. 2 is S type channel of acoustic wave structural representations inside the utility model low frequency absorption body.
Fig. 3 is the cross section structure diagram of the utility model Composite Hollow thin plate.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
A kind of spatial extent high efficiency composition sound insulating structure as Figure 1-3, including sound insulation basic unit 1, sound insulation basic unit 1 is normal
The plate of the rule-compound sound insulating structure of cavity-plate, sound insulation basic unit 1 can also be the compound sound insulating structure of plate-sound-absorbing porous material-plate,
The side of sound insulation basic unit 1 is compounded with low frequency absorption body 2.
Low frequency absorption body 2 is hollow structure, and inside is formed vertical by vertical spaced dividing plate 201 alternatively up and down
S types channel of acoustic wave 202, the inside of channel of acoustic wave 202 filling porous sound-absorbing porous material, such as melamine cotton, mineral wool, is advantageous to
Improve the absorption to low-frequency range sound wave.It can also be formed inside low frequency absorption body 2 by the dividing plate 201 of neighboring vertical spiral helicine
Annular channel of acoustic wave 202.Channel of acoustic wave 202 and sound insulation basic unit 1 back to side be provided with acoustic wave inlet 203, at acoustic wave inlet 203
It can fill melamine cotton sound-absorbing porous material, the outer surface of acoustic wave inlet 203 is using PVF films or perforated plate is compound is blocked,
In some applications, side Composite Hollow thin plate 3 or perforated plate that can also be in low frequency absorption body 2 back to sound insulation basic unit 1, one
Aspect blocks acoustic wave inlet 203, on the other hand by reasonably designing, can improve overall defening effect.
The spatial extent high efficiency composition sound insulating structure is designed to the knot of S types channel of acoustic wave 202 by the inner chamber of low frequency absorption body 2
Structure, sound travel is extended, improve acoustic reactance, low-frequency sound wave is entered in low frequency absorption body 2 by acoustic wave inlet 203 to be absorbed, and is led to
The length of adjustment channel of acoustic wave 202 is crossed, different sound wave frequency band ranges can be directed to.
Claims (8)
1. a kind of spatial extent high efficiency composition sound insulating structure, including sound insulation basic unit (1), the sound insulation basic unit (1) for conventional plate-
The compound sound insulating structure of cavity-plate, it is characterised in that：The side of the sound insulation basic unit (1) is compounded with low frequency absorption body (2), described
Low frequency absorption body (2) is hollow structure, and the low frequency absorption body (2) is internally formed the channel of acoustic wave (202) of continuous bending,
The channel of acoustic wave (202) with sound insulation basic unit (1) back to side be provided with acoustic wave inlet (203).
A kind of 2. spatial extent high efficiency composition sound insulating structure according to claim 1, it is characterised in that：The low frequency absorption
Body (2) is internal to form vertical S types channel of acoustic wave (202) by vertical spaced dividing plate (201) alternatively up and down.
A kind of 3. spatial extent high efficiency composition sound insulating structure according to claim 1, it is characterised in that：The low frequency absorption
Body (2) is internal to form spiral helicine annular channel of acoustic wave (202) by helical baffle plates (201).
A kind of 4. spatial extent high efficiency composition sound insulating structure according to claim 1, it is characterised in that：The sound insulation basic unit
(1) it can also be plate-compound sound insulating structure of sound-absorbing porous material-plate.
A kind of 5. spatial extent high efficiency composition sound insulating structure according to claim 1, it is characterised in that：The acoustic wave inlet
(203) place's filling sound-absorbing porous material, acoustic wave inlet (203) outer surface and PVF films or perforated plate are compound.
A kind of 6. spatial extent high efficiency composition sound insulating structure according to claim 1, it is characterised in that：The low frequency absorption
Side Composite Hollow thin plate (3) or perforated plate of the body (2) back to sound insulation basic unit (1).
A kind of 7. spatial extent high efficiency composition sound insulating structure according to claim 1, it is characterised in that：The channel of acoustic wave
(202) internal filling sound-absorbing porous material.
A kind of 8. spatial extent high efficiency composition sound insulating structure according to claim 5 or 7, it is characterised in that：It is described porous
Sound-absorbing material is rock wool, melamine foamed cotton, mineral wool, compacting cotton or melamine cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351459.5U CN206844365U (en) | 2017-04-06 | 2017-04-06 | Spatial extent high efficiency composition sound insulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351459.5U CN206844365U (en) | 2017-04-06 | 2017-04-06 | Spatial extent high efficiency composition sound insulating structure |
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| Publication Number | Publication Date |
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| CN206844365U true CN206844365U (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720351459.5U Active CN206844365U (en) | 2017-04-06 | 2017-04-06 | Spatial extent high efficiency composition sound insulating structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165297A (en) * | 2017-04-06 | 2017-09-15 | 上海声望声学科技股份有限公司 | Spatial extent high efficiency composition sound insulating structure |
| CN111270791A (en) * | 2020-01-18 | 2020-06-12 | 温州职业技术学院 | High-strength light construction wallboard |
-
2017
- 2017-04-06 CN CN201720351459.5U patent/CN206844365U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165297A (en) * | 2017-04-06 | 2017-09-15 | 上海声望声学科技股份有限公司 | Spatial extent high efficiency composition sound insulating structure |
| CN111270791A (en) * | 2020-01-18 | 2020-06-12 | 温州职业技术学院 | High-strength light construction wallboard |
| CN111270791B (en) * | 2020-01-18 | 2021-03-12 | 温州职业技术学院 | High-strength light construction wallboard |
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