CN205487329U - Pad pasting of making an uproar falls - Google Patents
Pad pasting of making an uproar falls Download PDFInfo
- Publication number
- CN205487329U CN205487329U CN201620229114.8U CN201620229114U CN205487329U CN 205487329 U CN205487329 U CN 205487329U CN 201620229114 U CN201620229114 U CN 201620229114U CN 205487329 U CN205487329 U CN 205487329U
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- China
- Prior art keywords
- noise reduction
- layer
- pad pasting
- venthole
- air inlet
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Abstract
The utility model discloses a pad pasting of making an uproar falls includes adhesion layer, substrate, insulating layer and noise reduction layer from bottom to top in proper order, and it has the conical step of inlet port and protuberate to gather in noise reduction layer surface, and conical step top is equipped with the venthole, the inside cavity of conical step and with advance the pore forming locally connected air cavity, the air that receives the oppression admits air, goes out from the step venthole gaseously from the inlet port. Compared with the prior art, the difficulty (needing thick sound absorbent usually) of making an uproar is fallen to present bass reflex to this patent on the basis that utilizes porous material to fall to make an uproar, designed the thin noise reduction layer of thickness, becomes to have circular cone shape's reflection gas column promptly through the thin miniature air chamber bodily form, and higher circular cone gas column can absorb corresponding wavelength's sound wave energy, has realized the filmization of falling the membrane of making an uproar, and this is the special innovation part of this patent.
Description
Technical field
This utility model relates to a kind of noise reduction pad pasting.
Background technology
Raising amenity required along with people, increasingly stricter to noise requirements of various countries, improves the noise level in environment, is national governments and people's questions of common interest.The preferable material of general sound absorbing capabilities reduces noise.Sound absorption measure mainly has: porous sound-absorbing material, such as glass fibre, polyurethane foam, cotton fiber, polyester fiber, flaxen fiber etc.；Thin plate sound-absorbing material, such as plywood, hardboard, stereotype, cardboard etc.；Resonance sound-absorbing structure for sheet；Sound absorbent perforated structure etc..But it is all at present that to present a feature material cost the highest on the market with the sound-absorbing material in existing patent, document, the soundproof wall that will install more than 3m near the highway both sides of residential block additional could effectively stop sound, for the sound wave band (frequency is between 1000-3000Hz) that human ear is most sensitive, the deadener finding low cost has become as, with device, the emphasis direction that current people study.
Utility model content
The purpose of this utility model is to provide a kind of low cost, can be attached to body surface and play the noise reduction pad pasting of noise reduction.
The technical solution adopted in the utility model is: a kind of noise reduction pad pasting, include adhesive layer, base material, thermal insulation layer and noise reduction layer the most successively, noise reduction layer surface is densely covered with the conical step on air inlet and prominent surface, cone step top is provided with venthole, cone step inner hollow also forms locally-connected air cavity with air inlet, and the air oppressed is from air inlet air inlet, go out gas from step venthole.
Further, the cone height of described conical step is 0.025～0.075m.
Further, described thermal insulation layer is expanded pearlite rock stratum.
Further, described noise reduction layer uses hard polyurethane foam material.
Further, described adhesive layer is double faced adhesive tape.
The concrete effect of the noise reduction layer in this patent is as follows: 1) surface is collectively forming a conical sound absorber with the venthole of cone with the air-flow of ejection, the ultimate principle of sound absorption is incident acoustic wave and reflect cancelling out each other of sound wave, the height of circular cone determines the wavelength band (i.e. having notable absorption to the sound wave that wavelength is below 4 times of cone height) of sound absorption, and the height of circular cone platform is significantly less than cone height, thus the thinner thickness of whole noise reduction layer film, advantageously reduce material cost；2) hard polyurethane foam itself by noise energy is converted into interior energy, can reduce noise energy as damping material；3) noise reduction layer is by after acoustic pressure, and the different throttle effect (Joule-Thomson Joule-Thomson effect) caused of gas pressure intensity outside the air cavity of the partial closure that noise reduction layer is formed from the hollow intraconnection of cone platform and conical venthole can say that noise immune changes into heat energy.
The concrete effect of the thermal insulation layer in this patent is as follows: 1) feature of expanded perlite is wear-resisting, porous, thermal insulation, plays insulation heat insulating function；2) loose structure is permissible, changes sonic propagation direction, is scattered in whole space by the noise of single direction；3) loose structure has throttle effect equally, can reduce the energy of noise further.
Substrate layer in this patent specifically acts on as follows: 1) utilize the porous of nano silicon and polyester, changes the direction of propagation of noise, shot noise；2) make mixed with silicon dioxide that silastic material itself is wear-resisting, wear-resistant；3) protection thermal insulation layer and noise reduction layer.
Compared with prior art, this patent is on the basis of utilizing porous material noise reduction, difficulty (typically requiring thicker sound-absorbing material) for current bass reflex noise reduction, devise the noise reduction layer of thinner thickness, the reflection gas column with cone shape is i.e. formed by relatively thin miniature air cavity, higher circular cone gas column can absorb the acoustic wave energy of corresponding wavelength, it is achieved that the filming of noise reduction film, and this is the special innovation of this patent.Additionally, reduce acoustic wave energy by damping, reflect, convert various ways；Sonic propagation direction is changed by forms such as porous, air chamber, scatterings；Contribute to sound wave mixed with the multiple structure of the silicone rubber polyurethane foam expanded perlite of nano material and form multiple reflections at multiple solutions, be more conducive to de-noising.Above-mentioned multiple noise reduction mechanisms complements each other with noise-reduction method, and common effect reduces noise, and this noise reduction pad pasting has low cost, wear-resisting, corrosion-resistant, waterproof rain-proof concurrently, is incubated, facilitates the plurality of advantages such as use simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of noise reduction pad pasting of the present utility model.
Fig. 2 is the top view of noise reduction pad pasting of the present utility model.
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
Detailed description of the invention
Embodiment 1
Automobile noise reduction pad pasting structure from bottom to top is: adhesive layer 1, base material 2, thermal insulation layer 3, noise reduction layer 4.Wherein, noise reduction Rotating fields is the conical step 6 that surface is furnished with air inlet 5 and prominent surface, venthole 7 is arranged at cone step top, cone step inner hollow also forms locally-connected air cavity with air inlet, the air oppressed from air inlet 5 air inlet, go out gas (air inlet area is much larger than venthole) from step venthole 7.The cone height of described noise reduction layer 4 conical lower section step 6 is 0.025m, and the height of step is 0.005m；Described noise reduction layer 4 is hard polyurethane foam, and thickness is 0.001m；Described thermal insulation layer 3 is expanded pearlite rock stratum, and thickness is 0.5mm.Described base material 2 is the silastic-layer mixed with nano silicon, and thickness is 0.5mm；Described adhesive layer 1 is the biggest double faced adhesive tape.
Embodiment 2:
Noise reduction pad pasting structure from bottom to top in performance hall is: adhesive layer 1, base material 2, thermal insulation layer 3, noise reduction layer 4.Wherein, noise reduction Rotating fields is the conical step 6 that surface is furnished with air inlet 5 and prominent surface, venthole 7 is arranged at cone step top, cone step inner hollow also forms locally-connected air cavity with air inlet, the air oppressed from air inlet air inlet, go out gas (air inlet area is much larger than venthole) from step venthole.The cone height of described noise reduction layer 4 conical lower section step is 0.075m, and the height of step is 0.015m；Described noise reduction layer 4 is hard polyurethane foam, and thickness is 0.005m；Described thermal insulation layer 3 is expanded pearlite rock stratum, and thickness is 0.5mm.Described base material 2 is the silastic-layer mixed with nano silicon, and thickness is 0.5mm；Described adhesive layer 1 is the biggest double faced adhesive tape.
Embodiment 3:
Factory's noise reduction pad pasting structure from bottom to top is: adhesive layer 1, base material 2, thermal insulation layer 3, noise reduction layer 4.Wherein, noise reduction Rotating fields is the conical step 6 that surface is furnished with air inlet 5 and prominent surface, venthole 7 is arranged at cone step top, cone step inner hollow also forms locally-connected air cavity with air inlet, the air oppressed from air inlet air inlet, go out gas (air inlet area is much larger than venthole) from step venthole.The cone height of described noise reduction layer 4 conical lower section step is 0.05m, and the height of step is 0.013m；Described noise reduction layer 4 is hard polyurethane foam, and thickness is 0.002m；Described thermal insulation layer 3 is expanded pearlite rock stratum, and thickness is 0.5mm.Described base material 2 is the silastic-layer mixed with nano silicon, and thickness is 0.5mm；Described adhesive layer 1 is the biggest double faced adhesive tape.
Claims (5)
1. a noise reduction pad pasting, includes adhesive layer, base material, thermal insulation layer and noise reduction layer the most successively, gathers in noise reduction layer surface
The conical step on air inlet and prominent surface, cone step top is had to be provided with venthole, cone step inner hollow
And forming locally-connected air cavity with air inlet, the air oppressed is from air inlet air inlet, go out gas from step venthole.
Noise reduction pad pasting the most according to claim 1, it is characterised in that: the cone height of described conical step is
0.025～0.075m.
Noise reduction pad pasting the most according to claim 2, it is characterised in that: described thermal insulation layer is expanded pearlite rock stratum.
Noise reduction pad pasting the most according to claim 3, it is characterised in that: described noise reduction layer uses hard polyurethane foam material
Material.
Noise reduction pad pasting the most according to claim 4, it is characterised in that: described adhesive layer is double faced adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229114.8U CN205487329U (en) | 2016-03-22 | 2016-03-22 | Pad pasting of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229114.8U CN205487329U (en) | 2016-03-22 | 2016-03-22 | Pad pasting of making an uproar falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205487329U true CN205487329U (en) | 2016-08-17 |
Family
ID=56651452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620229114.8U Expired - Fee Related CN205487329U (en) | 2016-03-22 | 2016-03-22 | Pad pasting of making an uproar falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205487329U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079692A (en) * | 2016-06-17 | 2016-11-09 | 河海大学 | A kind of automobile noise reduction pad pasting and preparation method thereof |
| CN106223501A (en) * | 2016-08-30 | 2016-12-14 | 河北正翰建筑材料有限公司 | Coating type heat insulation sound absorbent cotton |
| CN108612569A (en) * | 2018-04-28 | 2018-10-02 | 江苏华强新能源科技有限公司 | A kind of low-noise high-efficiency gas turbine exhaust system |
-
2016
- 2016-03-22 CN CN201620229114.8U patent/CN205487329U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079692A (en) * | 2016-06-17 | 2016-11-09 | 河海大学 | A kind of automobile noise reduction pad pasting and preparation method thereof |
| CN106223501A (en) * | 2016-08-30 | 2016-12-14 | 河北正翰建筑材料有限公司 | Coating type heat insulation sound absorbent cotton |
| CN108612569A (en) * | 2018-04-28 | 2018-10-02 | 江苏华强新能源科技有限公司 | A kind of low-noise high-efficiency gas turbine exhaust system |
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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 |
Granted publication date: 20160817 Termination date: 20180322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |