CN219825677U - Sound insulation board - Google Patents
Sound insulation board Download PDFInfo
- Publication number
- CN219825677U CN219825677U CN202321155108.9U CN202321155108U CN219825677U CN 219825677 U CN219825677 U CN 219825677U CN 202321155108 U CN202321155108 U CN 202321155108U CN 219825677 U CN219825677 U CN 219825677U
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- China
- Prior art keywords
- sound
- blocking plate
- baffle
- plate
- sound insulation
- Prior art date
- 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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- 238000009413 insulation Methods 0.000 title claims abstract description 61
- 230000000903 blocking effect Effects 0.000 claims abstract description 133
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 7
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 5
- 239000011496 polyurethane foam Substances 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002984 plastic foam Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 20
- 230000003993 interaction Effects 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model relates to the field of buildings, and particularly provides a sound insulation board. The face includes face and lower face, goes up face and the plane that lower face is located and is parallel to each other. The first sound blocking plate, the second sound blocking plate and the third sound blocking plate are sequentially arranged from the upper plate surface direction to the lower plate surface direction. The first sound blocking plate, the second sound blocking plate and the third sound blocking plate are not contacted, and are not contacted with the upper plate surface and the lower plate surface. The upper plate surface and the first sound-blocking plate, the first sound-blocking plate and the second sound-blocking plate, the second sound-blocking plate and the third sound-blocking plate, and the third sound-blocking plate and the lower plate surface are all filled with sound absorption parts, and the sound absorption parts are made of porous materials. The first sound blocking plate and the third sound blocking plate are provided with micropores. The opening of the micropore on the first sound blocking plate, which is close to one end of the upper plate surface, is larger than the opening of the micropore, which is far away from one end of the upper plate surface; the opening of the micropore on the third sound blocking plate, which is close to one end of the lower plate surface, is larger than the opening of one end far away from the lower plate surface.
Description
Technical Field
The utility model relates to the field of buildings, in particular to a sound insulation board.
Background
There are many noises in the work and life, such as noise generated by decoration, footsteps on stairs, sound of moving the table and chair, etc., and also such as in KTV. Typical sound insulating components are sound insulating wallpaper, sound insulating floor tiles, sound insulating doors, sound insulating panels, etc., which are similar in principle and structure. The sound waves are absorbed by porous materials such as foam materials, so that the sound insulation effect is achieved.
The name "a sound insulation wallpaper", the authorized bulletin number is: the utility model patent of CN 202298361U discloses sound insulation wallpaper, which utilizes sound absorption cotton coated around a metal net to absorb sound waves; the name "soundproof floor tile" and the authorized bulletin number is: the utility model patent of CN 201486094U discloses a sound insulation floor tile, which utilizes flame-retardant foam plastic to absorb sound waves; the name is 'sound insulation wallpaper', and the application publication number is: the patent application of CN 107842161A discloses a sound-proof wallpaper, which comprises a wallpaper base layer, a soft cushion layer, a metal screen layer, a sound-absorbing cotton layer, a metal film layer and a reflecting layer from inside to outside, wherein the sound-absorbing cotton layer is an asbestos layer, and the soft cushion layer is made of foam materials. The sound absorption of the sound wave is carried out by the porous material when the sound wave passes through the porous material; however, the interaction time of the acoustic wave with the porous material is short, and the energy attenuation effect on the acoustic wave is not obvious. Accordingly, the sound insulation effect of the existing sound insulation member, such as a sound insulation panel, is to be further improved.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the sound insulation plate which utilizes multiple reflections to enable sound waves to be reflected in a cavity for multiple times, so that the sound waves repeatedly interact with a sound absorption part, the times of the actions are enhanced, and the sound insulation effect is improved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a sound insulation board, which comprises a board surface, a sound absorption part, a first sound insulation board, a second sound insulation board and a third sound insulation board. The face includes face and lower face. The planes of the upper plate surface and the lower plate surface are parallel to each other, and a first sound blocking plate, a second sound blocking plate and a third sound blocking plate are sequentially arranged from the upper plate surface direction to the lower plate surface direction. The first sound blocking plate, the second sound blocking plate and the third sound blocking plate are not contacted with each other and are not contacted with the upper plate surface and the lower plate surface; this facilitates filling of the sound absorbing portion. And sound absorption parts are filled among the upper plate surface, the first sound blocking plate, the second sound blocking plate, the third sound blocking plate and the lower plate surface.
The first sound blocking plate and the third sound blocking plate are provided with micropores, the opening of the micropores on the first sound blocking plate, which is close to one end of the upper plate, is larger than the opening of the micropores on the third sound blocking plate, which is close to one end of the lower plate, is larger than the opening of the micropores on the third sound blocking plate, which is far away from one end of the lower plate; like this, the sound wave gets into between first sound blocking board and the third sound blocking board easily, and is difficult to by first sound blocking board and the third sound blocking board between spread, the sound wave is multiple reflection between first sound blocking board and the third sound blocking board for the sound wave is absorbed by multiple times, promotes the sound insulation effect. Preferably, the size of the openings of the micropores is 10 μm to 300 μm; the shape of the micropores is a gathering shape; therefore, sound waves can be reflected into micropores when contacting with larger openings on the first sound blocking plate and the third sound blocking plate, and are reflected for multiple times on the inner walls of the micropores and absorbed, so that the sound insulation effect is achieved.
Preferably, the thicknesses of the first sound blocking plate and the third sound blocking plate are both larger than the thickness of the second sound blocking plate; in this way, sound waves can be locally reflected between the first sound blocking plate and the third sound blocking plate for multiple times, and therefore the sound waves are absorbed by the sound absorbing part.
Preferably, the sum of the thicknesses of the first sound blocking plate, the second sound blocking plate and the third sound blocking plate is 20% -30% of the distance between the upper plate surface and the lower plate surface; this can ensure that the space in which the sound absorbing portion is provided is sufficiently large.
More preferably, the distance between the first sound blocking plate and the upper plate surface is equal to the distance between the third sound blocking plate and the lower plate surface, and the distance between the second sound blocking plate and the first sound blocking plate is equal to the distance between the second sound blocking plate and the third sound blocking plate; thus, the sound insulation effect of the two sides of the sound insulation plate is the same.
More preferably, the planes of the first sound blocking plate, the second sound blocking plate, the third sound blocking plate, the upper plate surface and the lower plate surface are parallel to each other, so that the reflection times of the sound wave are the greatest.
More preferably, the sound absorbing portion is a porous material in which sound waves are absorbed, and plays a role of sound insulation. Specifically, the sound absorbing part is made of polyurethane foam material; the first sound-blocking plate, the second sound-blocking plate and the third sound-blocking plate are one of vinyl plate, polyethylene plate, plastic foam plate and asbestos; the upper plate surface and the lower plate surface are made of wood or paperboard.
Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a sound insulation board. The sound wave easily enters between the first sound blocking plate and the third sound blocking plate and is not easily transmitted between the first sound blocking plate and the third sound blocking plate; namely, the sound wave is reflected between the first sound blocking plate and the third sound blocking plate for multiple interactions between the sound wave and the sound absorbing part, namely, the sound wave is absorbed through the sound absorbing part for multiple times, and the interaction time of the sound wave and the sound absorbing part is longer. Therefore, the sound insulation panel of the present utility model has a good sound insulation effect.
Drawings
Fig. 1 is a schematic view of a sound insulation board according to the present utility model.
Icon: 1-panel surface; 2-an acoustic absorption part; 3-a first sound blocking plate; 4-a second sound blocking plate; and 5-a third sound blocking plate.
Detailed Description
In order to make the implementation of the present utility model more clear, the following detailed description will be given with reference to the accompanying drawings.
The utility model provides a sound insulation board, which comprises a board surface 1, a sound absorption part 2, a first sound insulation board 3, a second sound insulation board 4 and a third sound insulation board 5, as shown in figure 1. The board surface 1 comprises an upper board surface and a lower board surface, the planes of the upper board surface and the lower board surface are parallel to each other, and the upper board surface and the lower board surface are wood boards or paperboards. The first sound blocking plate 3, the second sound blocking plate 4 and the third sound blocking plate 5 are sequentially arranged from the upper plate surface direction to the lower plate surface direction. The first sound blocking plate 3, the second sound blocking plate 4 and the third sound blocking plate 5 are not contacted with each other and are not contacted with the upper plate surface and the lower plate surface; in this way, spaces exist among the first sound blocking plate 3, the second sound blocking plate 4, the third sound blocking plate 5, the upper plate surface and the lower plate surface, and can be used for filling the sound absorbing part 2. The sound absorption part 2 is filled between the upper plate surface and the first sound blocking plate 3, between the first sound blocking plate 3 and the second sound blocking plate 4, between the second sound blocking plate 4 and the third sound blocking plate 5, and between the third sound blocking plate 5 and the lower plate surface. The sound absorbing part 2 is made of porous material, specifically, the material of the sound absorbing part 2 can be polyurethane foam material, the intermolecular interaction of the polyurethane foam material is weak, the sound wave has a low propagation speed in the polyurethane foam material, namely the sound wave is large, so that more local areas of the sound wave are reflected on the hole wall for multiple times in the sound absorbing part 2, and finally the energy of the sound wave is reduced, so that the sound-insulating effect is achieved.
The first sound-blocking plate 3, the second sound-blocking plate 4 and the third sound-blocking plate 5 are one of vinyl plates, polyethylene plates, plastic foam plates and asbestos; the materials of the first sound blocking plate 3, the second sound blocking plate 4 and the third sound blocking plate 5 can be the same or different. Preferably, the thicknesses of the first sound blocking plate 3 and the third sound blocking plate 5 are both greater than the thickness of the second sound blocking plate 4; thus, on one hand, micropores are conveniently formed in the first sound blocking plate 3 and the third sound blocking plate 5, and on the other hand, sound waves can be locally reflected between the first sound blocking plate 3 and the third sound blocking plate 5 for multiple times, so that multiple interactions with the sound absorption part 2 are performed, and the sound insulation effect is improved. Preferably, the sum of the thicknesses of the first sound blocking plate 3, the second sound blocking plate 4 and the third sound blocking plate 5 is 20% -30% of the distance between the upper plate surface and the lower plate surface; therefore, the space for arranging the sound absorbing part 2 can be ensured to be large enough, so that more sound absorbing parts 2 can be arranged, and the sound insulation effect can be improved. More preferably, the distance between the first sound blocking plate 3 and the upper plate surface is equal to the distance between the third sound blocking plate 5 and the lower plate surface, and the distance between the second sound blocking plate 4 and the first sound blocking plate 3 and the third sound blocking plate 5 are equal; thus, the sound insulation effects on the two sides of the sound insulation plate are the same, and the use is convenient. More preferably, the planes of the first sound blocking plate 3, the second sound blocking plate 4, the third sound blocking plate 5, the upper plate surface and the lower plate surface are parallel to each other; the incidence angles of the sound waves at different positions are the same, and the reflection times between the first sound baffle 3 and the third sound baffle 5 are the largest; specifically, a reflective cavity is formed between the first sound blocking plate 3 and the second sound blocking plate 4, a reflective cavity is formed between the second sound blocking plate 4 and the third sound blocking plate 5, the two reflective cavities are connected in series, a transmission sound wave of one reflective cavity at the second sound blocking plate 4 is an incident sound wave of the other reflective cavity, namely, the two-stage multiple reflection is performed, so that the sound wave fully interacts with the sound absorbing part 2, the interaction time of the sound wave and the sound absorbing part 2 is increased, and finally the sound insulation effect is improved. More preferably, the shape and the area of the first sound blocking plate 3, the second sound blocking plate 4 and the third sound blocking plate 5 are the same as those of the upper plate surface, so that a closed reflecting cavity can be formed, the reflecting times of sound waves in the reflecting cavity are more, and the sound insulation effect is improved.
The first sound blocking plate 3 and the third sound blocking plate 4 are provided with micropores, the opening of the micropores on the first sound blocking plate 3, which is close to one end of the upper plate surface, is larger than the opening of the micropores on the third sound blocking plate 5, which is close to one end of the lower plate surface, is larger than the opening of the micropores on the third sound blocking plate 5, which is far from one end of the lower plate surface; thus, the sound wave easily enters the reflecting cavity between the first sound blocking plate 3 and the second sound blocking plate 4 from the upper plate surface direction, is not easily propagated from one side of the reflecting cavity to the upper plate surface direction, and also easily enters the reflecting cavity between the second sound blocking plate 4 and the third sound blocking plate 5 from the lower plate surface direction, and is not easily propagated from one side of the reflecting cavity to the lower plate surface direction. In this way, the sound wave can be locally reflected in the reflecting cavity between the first sound blocking plate 3 and the third sound blocking plate 5, so that the interaction time between the sound wave and the sound absorption part 2 is longer, the sound absorption part 2 absorbs the sound wave more fully, and the sound insulation effect is improved. More preferably, the size of the openings of the micropores is 10 μm to 300 μm; in this way, enough micropores can be arranged on the first sound blocking plate 3 and the third sound blocking plate 5, and meanwhile, the difference between the natural frequency of the structure with the size and the frequency band of noise is large, so that resonance is not easy to generate, and the enhancement of sound waves is avoided. More preferably, the shape of the micropores is convergent, i.e. the curvature of the larger side of the opening is not smaller than the curvature of the smaller side of the opening, and the bending direction is the same, i.e. the curvature is equal or greater from the smaller end of the opening to the larger end of the opening. Therefore, on one hand, sound waves are transmitted to one end of the larger opening of the micropore and can be reflected into the inner wall of the micropore, and the sound waves are not easy to be emitted out of the micropore, so that the purposes of absorbing sound wave energy and transmitting the sound waves into the reflecting cavity are achieved; on the other hand, sound waves in the reflecting cavity are transmitted to one end of the small opening, most of the sound waves can be reflected into the reflecting cavity, and the sound waves cannot propagate from one end of the small opening of the micropore to one end of the large opening. In summary, the micro-holes enable the sound waves to easily enter between the first sound-blocking plate 3 and the third sound-blocking plate 5, and not easily be emitted between the first sound-blocking plate 3 and the third sound-blocking plate 5, i.e. the sound waves are locally between the first sound-blocking plate 3 and the third sound-blocking plate 5, so that the sound waves are reflected for multiple times, fully interact with the sound absorbing part 2, and the sound-insulating effect is improved.
When the sound wave absorber is applied, taking the example that sound waves are injected from the upper plate surface, the sound waves penetrate the upper plate surface to reach the sound absorption part 2, and reach the first sound blocking plate 3 after being absorbed for the first time by the sound absorption part 2, the first sound blocking plate 3 absorbs a part of energy, meanwhile, the micropores on the first sound blocking plate 3 absorb a part of sound wave energy through the reflection of the inner wall, and the special gathering shape of the micropores enables the sound waves to enter the reflecting cavity between the first sound blocking plate 3 and the second sound blocking plate 4, so that the sound waves are difficult to inject. Due to the difference in acoustic resistance, the acoustic wave is reflected at the first and second sound-blocking plates 3 and 4, so that the acoustic wave is reflected multiple times in the reflection cavity, and thus interacts again with the sound absorbing portion 2 in the reflection cavity, so that the acoustic wave energy is further reduced. While the second sound blocking plate 4 reflects sound waves, part of the sound waves penetrate through the second sound blocking plate 4 and enter a reflecting cavity formed between the second sound blocking plate 4 and the third sound blocking plate 5, and as the third sound blocking plate 5 is also provided with a micropore structure, the sound waves are difficult to penetrate through the third sound blocking plate 5, and the sound waves are locally reflected for multiple times in the reflecting cavity formed between the second sound blocking plate 4 and the third sound blocking plate 5, namely, the sound waves interact with the sound absorbing part 2 again, and the energy of the sound waves is further reduced. Finally, a very small portion of the sound wave transmitted through the third sound-blocking plate 5 is absorbed by the sound absorbing portion 2 between the third sound-blocking plate 5 and the lower plate surface, the sound wave energy is reduced again, and finally the sound wave energy transmitted through the lower plate surface is very small. Therefore, the sound insulation board has better sound insulation effect. The process of incidence of sound waves from the lower plate surface is similar to the above process. According to the utility model, the action time of sound waves and the sound absorption part 2 is prolonged through multiple reflections in the reflection cavity, so that a good sound insulation effect is achieved. And a two-stage reflecting cavity is formed through the second sound blocking plate 4, so that the sound wave transmitted through the second sound blocking plate 4 is subjected to oscillation reflection, and the energy of the sound wave is further reduced. In conclusion, the sound insulation effect of the sound insulation plate is good, so that the sound insulation effect of the existing sound insulation plate is improved.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The utility model provides a sound insulation board, its characterized in that, the sound insulation board includes face, sound absorption portion, first sound insulation board, second sound insulation board, third sound insulation board, the face includes face and lower face, go up the face with the face place plane is parallel to each other down, by go up the face direction to down the face direction has set gradually first sound insulation board the second sound insulation board the third sound insulation board, first sound insulation board the second sound insulation board the third sound insulation board between all contactless, and all do not with go up the face with the face contact down, go up the face with first sound insulation board with the second sound insulation board with third sound insulation board the third sound insulation board with all fill between the face down has sound absorption portion.
2. The acoustic baffle plate according to claim 1, wherein the first acoustic baffle plate and the third acoustic baffle plate are provided with micro-holes, the opening of the micro-holes on the first acoustic baffle plate near one end of the upper plate surface is larger than the opening far from one end of the upper plate surface, the opening of the micro-holes on the third acoustic baffle plate near one end of the lower plate surface is larger than the opening far from one end of the lower plate surface, and the size of the opening of the micro-holes at one end of the lower plate surface is 10 μm-300 μm.
3. The baffle of claim 2 wherein the micropores are gathered in shape.
4. The baffle of claim 3 wherein the thickness of both the first baffle and the third baffle are greater than the thickness of the second baffle.
5. The baffle of claim 4 wherein the sum of the thicknesses of the first baffle, the second baffle, and the third baffle is 20% -30% of the spacing between the upper and lower panels.
6. The baffle of claim 5 wherein the first baffle and the upper plate have a pitch equal to the pitch of the third baffle and the lower plate.
7. The baffle of claim 6 wherein the second baffle is equidistant from the first baffle and the third baffle.
8. The baffle of any one of claims 1-6 wherein the planes of the first baffle, the second baffle, the third baffle, the upper plate and the lower plate are parallel to one another.
9. The sound insulation panel according to any one of claims 1 to 6, wherein the sound absorbing portion is a polyurethane foam material; the first sound blocking plate, the second sound blocking plate and the third sound blocking plate are one of vinyl plate, polyethylene plate, plastic foam plate and asbestos; the upper plate surface and the lower plate surface are made of wood plates or paper plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321155108.9U CN219825677U (en) | 2023-05-15 | 2023-05-15 | Sound insulation board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321155108.9U CN219825677U (en) | 2023-05-15 | 2023-05-15 | Sound insulation board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219825677U true CN219825677U (en) | 2023-10-13 |
Family
ID=88246106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321155108.9U Active CN219825677U (en) | 2023-05-15 | 2023-05-15 | Sound insulation board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219825677U (en) |
-
2023
- 2023-05-15 CN CN202321155108.9U patent/CN219825677U/en active Active
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