CN206844366U - A kind of Helmholtz formula compound sound barrier - Google Patents
A kind of Helmholtz formula compound sound barrier Download PDFInfo
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- CN206844366U CN206844366U CN201720739979.3U CN201720739979U CN206844366U CN 206844366 U CN206844366 U CN 206844366U CN 201720739979 U CN201720739979 U CN 201720739979U CN 206844366 U CN206844366 U CN 206844366U
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Abstract
The utility model discloses a kind of Helmholtz formula compound sound barrier, including helmholtz resonance device and sound panel；The helmholtz resonance device is made up of acoustic board and air chamber；The air chamber of certain intervals is provided between the acoustic board and sound panel, the acoustic board is separately mounted to the rear and front end of framework with sound panel.The Helmholtz formula compound sound barrier sound insulation and noise reduction positive effect；Significantly mitigate weight while proof strength, installation facility, reduce without large lifting equipment, while compared to existing soundproof wall system cost more than 50%；Flameproof effect is good；Foamed aluminum sound absorbing plate can 100% recycle, pollution-free, more energy-conserving and environment-protective；3D cement boards are added, effect heat-insulated very well is played while sound insulation；Weatherability, corrosion-resistant, anti-aging, service life length.
Description
Technical field
A kind of sound barrier is the utility model is related to, specifically a kind of Helmholtz formula compound sound barrier.
Background technology
Sound barrier, a facility is inserted between sound source and recipient, Acoustic Wave Propagation is had a significant additional attenuation,
So as to weaken the influence of noise in the certain area where recipient, such facility is known as sound barrier.It is divided into traffic sound insulation
Barrier, equipment sound attenuation noise barrier, industrial factory's circle noise barrier.
Existing sound barrier typically adds galvanized steel plain sheet, Open-cell Aluminum Foam or multiple using perforation type abatvoix, punching foamed aluminium
Close pin hole aluminium conjunction abatvoix to be made, it has the disadvantages that：First, material is heavy, should not install；2nd, cost is high；3rd, can not return
Receive；4th, sound-absorbing effect is bad；5th, field of employment is limited to；6th, weatherability is poor.
Wherein, absorption coefficient refers to the acoustic energy of material absorption with inciding the ratio between total acoustic energy on material.Noise reduction coefficient is
Refer to sound-absorbing material centre frequency be 250,500,1000, the average value of 2000Hz four octave band absorption coefficients.Noninflammability
Refer under prescribed test conditions, the incombustible characteristic of material.Weatherability refers to material resistance because by sunlight, temperature
The influence of the external conditions such as change, wind and weather, and the colour fading of appearance, efflorescence, the ability of intensity decline.Salt fog resistance is
Refer to material resistance and cause the ability for destroying or going bad, changing colour in the presence of atmospheric environment.
Therefore, the utility model provides a kind of new Helmholtz formula compound sound barrier.
Utility model content
The purpose of this utility model is to provide a kind of Helmholtz formula compound sound barrier, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical scheme：
A kind of Helmholtz formula compound sound barrier, including helmholtz resonance device and sound panel；The helmholtz resonance
Device is made up of acoustic board and air chamber；Between the acoustic board and sound panel be provided with certain intervals air chamber, the acoustic board with every
Soundboard is separately mounted to the rear and front end of framework.
As further program of the utility model：The acoustic board be arranged in parallel with sound panel.
As further program of the utility model：The acoustic board is Foamed aluminum sound absorbing plate, and Foamed aluminum sound absorbing plate is to beat
Hole foamed aluminium, punching foamed aluminium thickness is 10mm, punches the diameter 2.5mm in hole on foamed aluminium, punches the spacing in hole on foamed aluminium
20mm。
As further program of the utility model：The sound panel is 3D cement foam boards, and the thickness of sound panel is
30mm。
As further program of the utility model：The air chamber is the cavity that thickness is 60mm.
As further program of the utility model：Sound-absorbing material is filled in the air chamber.
As further program of the utility model：The acoustic board is spliced by some acoustic board main bodys.
As further program of the utility model：The acoustic board main body is stuck on framework, and framework, which is provided with to coordinate, to be blocked
Enter the neck of acoustic board main body, and acoustic board main body is fixedly connected on framework.
Compared with prior art, the beneficial effects of the utility model are：
1) sound insulation and noise reduction positive effect；
2) weight, installation facility, without large lifting equipment, while compared to existing are significantly mitigated while proof strength
Soundproof wall system cost reduce more than 50%；
3) flameproof effect is good；
4) Foamed aluminum sound absorbing plate can 100% recycle, pollution-free, more energy-conserving and environment-protective；
5) 3D cement boards are added, effect heat-insulated very well is played while sound insulation；
6) weatherability, corrosion-resistant, anti-aging, service life length；
7) modular combines, quick and easy for installation.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of Helmholtz formula compound sound barrier.
Fig. 2 is the overall structure diagram of Helmholtz formula compound sound barrier.
Fig. 3 is the assembly structure diagram of acoustic board and framework in Helmholtz formula compound sound barrier.
Fig. 4 is the Foamed aluminum sound absorbing plate measurement result figure for setting thick 60mm air chambers behind.
Fig. 5 is absorption coefficient figure of the punching foamed aluminium under different-thickness air chamber.
Wherein：1- acoustic boards；2- air chambers；3- sound panels；4- frameworks；5- acoustic board main bodys.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Refer to Fig. 1-5, a kind of Helmholtz formula compound sound barrier, including helmholtz resonance device and sound panel 3；It is described
Helmholtz resonance device is made up of acoustic board 1 and air chamber 2；The air chamber of certain intervals is provided between the acoustic board 1 and sound panel 3
2, the acoustic board 1 is separately mounted to the rear and front end of framework 4 with sound panel 3, and acoustic board 1 be arranged in parallel with sound panel 3；It is described
Acoustic board 1 is Foamed aluminum sound absorbing plate, and Foamed aluminum sound absorbing plate is punching foamed aluminium, and punching foamed aluminium thickness is 10mm, punches foam
The diameter 2.5mm in hole on aluminium, punch the spacing 20mm in hole on foamed aluminium；The sound panel 3 is 3D cement foam boards, sound panel 3
Thickness be 30mm, reduce noise level using intrinsic helmholtz resonance device, punching foamed aluminium+cavity+3D is cement foamed
Plate collectively constitutes the compound sound barrier that complete sound absorption is combined with sound insulation, around the air and foamed aluminium hole of entrance
Air in air chamber because constantly rebound, so as to capture most air input energy；The air chamber 2 is the sky that thickness is 60mm
Chamber；Preferably, the acoustic board 1 can also use crushing foamed aluminium powder-stuck plate, compound porous aluminium alloy plate or compound
Mesh aluminium alloy plate；Preferably, can be according to sound-absorbing materials such as specific effect filling glass cottons in the air chamber 2；The sound panel 3
Other expanded materials, such as eps foam cement plate, PVC cystosepiments or PU foaming battenboards can also be used；Preferably, the suction
Sound plate 1 is spliced by some acoustic board main bodys 5, and the acoustic board main body 5 is stuck on framework 4, and framework 4 is caught in provided with cooperation
The neck of acoustic board main body 5, and acoustic board main body 5 is fixedly connected on framework 4 by screw fixation method.
Fig. 3 is the Foamed aluminum sound absorbing plate measurement result figure for setting thick 60mm air chambers behind；It can be seen that
Fig. 4 is absorption coefficient figure of the punching foamed aluminium under different-thickness air chamber；It can be seen that
Sound insulation measurement and vibration damping measurement are carried out to 3D cement foam boards (20mm is thick), the results are shown in Table 1 and table 2
The 3D cement foam board sound insulation measurement results of table 1
| Audio | 100Hz | 315Hz | 630Hz | 1000Hz | 2000Hz | 3000Hz | 4000Hz |
| Oise insulation factor | 18.0 | 26.7 | 30.2 | 30.3 | 38.7 | 42.6 | 42.3 |
The 3D cement foam board vibration damping measurement results of table 2
| Audio | 63.75Hz | 71.25Hz | 97.5Hz | 362.5Hz |
| Vibration damping amount, % | 3.34 | 5.43 | 5.45 | 4.51 |
Operation principle of the present utility model is：Noise level is reduced using intrinsic helmholtz resonance device, punches foam
Aluminium+cavity+3D cement foam boards collectively constitute the compound sound barrier that complete sound absorption is combined with sound insulation, the air of entrance with
And the air around foamed aluminium hole is in air chamber because constantly rebound, so as to capture most air input energy.
The Helmholtz formula compound sound barrier has advantages below：
1) sound insulation and noise reduction positive effect；
2) weight, installation facility, without large lifting equipment, while compared to existing are significantly mitigated while proof strength
Soundproof wall system cost reduce more than 50%；
3) flameproof effect is good, has 100% fire prevention (A levels) effect；
4) Foamed aluminum sound absorbing plate can 100% recycle, pollution-free, more energy-conserving and environment-protective；
5) 3D cement boards are added, effect heat-insulated very well is played while sound insulation；
6) weatherability, corrosion-resistant, anti-aging, service life length；
7) modular combines, quick and easy for installation.
, it is necessary to which explanation, unless otherwise clear and definite regulation and is limited in the description of this Helmholtz formula compound sound barrier
Fixed, term " setting ", " connected " and " connection " should be interpreted broadly, for example, it may be being fixedly connected or detachably connecting
Connect, or be integrally connected；Can be joined directly together, can also be indirectly connected by intermediary, can be two element internals
Connection.For the ordinary skill in the art, it can understand above-mentioned term in the utility model with concrete condition
Concrete meaning.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (8)
1. a kind of Helmholtz formula compound sound barrier, it is characterised in that including helmholtz resonance device and sound panel (3)；It is described
Helmholtz resonance device is made up of acoustic board (1) and air chamber (2)；Between being provided with necessarily between the acoustic board (1) and sound panel (3)
Every air chamber (2), the acoustic board (1) and sound panel (3) are separately mounted to the rear and front end of framework (4).
2. Helmholtz formula compound sound barrier according to claim 1, it is characterised in that the acoustic board (1) and sound insulation
Plate (3) be arranged in parallel.
3. Helmholtz formula compound sound barrier according to claim 1, it is characterised in that the acoustic board (1) is foam
Aluminium acoustic board, Foamed aluminum sound absorbing plate are punching foamed aluminium, and punching foamed aluminium thickness is 10mm, punches the diameter in hole on foamed aluminium
2.5mm, punch the spacing 20mm in hole on foamed aluminium.
4. Helmholtz formula compound sound barrier according to claim 1, it is characterised in that the sound panel (3) is 3D water
Mud foamed board, the thickness of sound panel (3) is 30mm.
5. Helmholtz formula compound sound barrier according to claim 1, it is characterised in that the air chamber (2) is for thickness
60mm cavity.
6. Helmholtz formula compound sound barrier according to claim 1, it is characterised in that filling is inhaled in the air chamber (2)
Sound material.
7. Helmholtz formula compound sound barrier according to claim 1, it is characterised in that the acoustic board (1) is by some
Acoustic board main body (5) is spliced.
8. Helmholtz formula compound sound barrier according to claim 7, it is characterised in that acoustic board main body (5) card
On framework (4), framework (4) is provided with the neck that cooperation is caught in acoustic board main body (5), and acoustic board main body (5) is fixedly connected
On framework (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720739979.3U CN206844366U (en) | 2017-06-23 | 2017-06-23 | A kind of Helmholtz formula compound sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720739979.3U CN206844366U (en) | 2017-06-23 | 2017-06-23 | A kind of Helmholtz formula compound sound barrier |
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| Publication Number | Publication Date |
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| CN206844366U true CN206844366U (en) | 2018-01-05 |
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| CN201720739979.3U Active CN206844366U (en) | 2017-06-23 | 2017-06-23 | A kind of Helmholtz formula compound sound barrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125799A1 (en) * | 2018-12-21 | 2020-06-25 | The Hong Kong University Of Science And Technology | Soft acoustic boundary plate |
-
2017
- 2017-06-23 CN CN201720739979.3U patent/CN206844366U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125799A1 (en) * | 2018-12-21 | 2020-06-25 | The Hong Kong University Of Science And Technology | Soft acoustic boundary plate |
| US11905703B2 (en) | 2018-12-21 | 2024-02-20 | The Hong Kong University Of Science And Technology | Soft acoustic boundary plate |
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