CN211669965U - Acoustic superstructure and sound baffle based on composite membrane - Google Patents
Acoustic superstructure and sound baffle based on composite membrane Download PDFInfo
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- CN211669965U CN211669965U CN202020026404.9U CN202020026404U CN211669965U CN 211669965 U CN211669965 U CN 211669965U CN 202020026404 U CN202020026404 U CN 202020026404U CN 211669965 U CN211669965 U CN 211669965U
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Abstract
The acoustic superstructure based on the composite membrane comprises a composite material membrane and an open grating framework which are arranged in a stacking mode, wherein the composite material membrane is formed by compounding at least a first material and a second material, the first material is a colloid material with a damping effect, the second material is a material used for adjusting the mechanical property of the composite material membrane, and the grating opening surface of the open grating framework is parallel to the surface of the composite material membrane. Compared with the prior art, the acoustic superstructure has a better noise reduction effect, is lighter and thinner in overall structure, is flexible and convenient to use, and can meet application requirements of different places by simply adjusting structural parameters according to actual use environment noise control requirements. The acoustic ultrastructure and the acoustic baffle have long service life and simple processing technology, and can be produced in batch.
Description
Technical Field
The utility model relates to an inhale sound insulation technical field, especially an acoustics superstructure and sound baffle based on complex film.
Background
Sound baffles (sound insulation screens) are used to block direct sound between the source and the receiver, and a means is inserted between the source and the receiver to provide a significant additional attenuation of the sound wave propagation, thereby attenuating the noise impact of the receiver. The sound baffle can be used outdoors as a sound insulation barrier and can also be used indoors as a sound insulation board. The sound baffles are classified into a reflection type sound baffle for pure sound insulation and a composite type sound baffle for combining sound absorption and sound insulation, which is a more effective sound insulation method. The sound baffle can be classified into the following types according to the material quality: metal plate (metal shutter, metal screen mesh), concrete plate (light concrete, high-strength concrete), PC plate, glass fiber reinforced plastic plate, steel plate, wood plate, PMMA/polycarbonate plate, plastic plate, gypsum plate, foamed aluminum plate and other structures. A sound baffle mainly comprises two parts, namely a steel structure upright post and a sound absorption and insulation screen board, wherein the upright post is a main stressed component of the sound baffle and is fixed on a road anti-collision wall or an embedded steel plate at the edge of a track through bolts or welding; the sound absorption and insulation board is a main sound insulation and absorption component and is fixed in the H-shaped upright post groove through a high-strength spring clip to form the sound baffle. In addition, the existing acoustic structure with a membrane structure needs to be provided with a membrane for maintaining tension to match with the mass block to realize low-frequency sound insulation, or to match a cavity and the mass block to realize low-frequency sound absorption.
With the increasing serious noise pollution and the higher requirements of people on noise reduction in living and working environments, higher requirements are put forward on the aspects of performance, cost, size, service life and the like of the sound baffle. How to improve the sound barrier structure and to noise frequency range sound absorption sound proof effect, enlarge suitable frequency range, realize the frivolousness of sound barrier structure, improve the life of sound barrier structure, make its processing technology simple to and make the construction quick convenient, be the problem that traditional sound barrier urgently needed to solve.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to overcome at least one of the above-mentioned defects of the prior art, and to provide an acoustic superstructure and an acoustic baffle based on a composite membrane.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an acoustics superstructure based on complex film, is including the combined material film and the open grid frame of range upon range of setting, the combined material film is formed by two kinds of materials complex of first and second material at least, wherein first material is the colloid material that has damping effect, the second material is for being used for adjusting the material of the mechanical properties of combined material film, the grid opening face of open grid frame with combined material film surface is parallel.
The material of the open grid framework comprises one or a combination of more of plastic, cement, resin, aluminum alloy, glass fiber composite material, glass fiber reinforced plastic and wood.
The shape of the grid openings of the open grid framework comprises one or a combination of a triangle, a quadrangle and a hexagon.
The composite film is fixed on the grid surface of the open grid frame, wherein gaps are formed on two sides of the composite film.
At least one of said composite films is applied to one or both end faces of the grills of said open grill frames, or said acoustic superstructure comprises at least two of said open grill frames, at least one of said composite films being sandwiched between two of said open grill frames.
The composite film is fixed in the grid opening of the open grid frame; wherein, both sides of the composite material film are provided with gaps.
The first material of the composite material film comprises one or more of vinyl silicone rubber, phenyl silicone rubber, fluorosilicone rubber, nitrile silicone rubber, room temperature vulcanized silicone rubber, ethylene propylene rubber, butyl rubber, isoprene rubber, polyurethane, polyvinyl chloride, modified epoxy resin and unsaturated polyester; the second material comprises one or more of aluminum, aluminum alloy, steel, PET, PEEK, PI, polypropylene, nylon, polyester, polyethylene, carbon fiber, aramid fiber, glass fiber, basalt fiber and non-woven fabric; the first material and the second material form the composite material film through interlayer compounding or in-layer compounding.
The composite material film vibration damper further comprises a mass block fixedly connected to the composite material film, and the mass block is used for adjusting the working frequency.
An acoustic baffle comprising said compound membrane based acoustic superstructure.
The sound baffle further comprises: the sound absorption and insulation structure layer or layers are stacked with the composite material film and the open grid framework together, the damping layer or layers are stacked with the composite material film and the open grid framework together, and/or the protective layer is arranged on one side or two sides of the sound barrier plate.
The utility model discloses following beneficial effect has:
the utility model provides an acoustics super structure body based on complex film, its combined material film and opening grid frame including range upon range of setting, the combined material film is formed by two kinds of materials of first and second material are compound at least, wherein the colloidal material of first material for having damping effect, the second material is for being used for adjusting the material of the mechanical properties of combined material film, the grid opening face of opening grid frame with combined material film surface parallel. The composite film can be set to maintain tension or have no tension, and low-frequency sound insulation can be realized without adding a mass block. Compare with the structure that traditional sound baffle adopted, the embodiment of the utility model provides an acoustic superstructure who constitutes with above-mentioned structure and material has better noise reduction to make overall structure frivolous more, simultaneously, can realize the noise regulation and control through artifical allotment to specific frequency noise very conveniently. When the sound baffle is constructed, the light and thin acoustic superstructure of the utility model can be used for realizing high-efficiency low-frequency noise control, and the structure can be installed in a modularized way, so that the construction is quick and convenient; according to the noise control requirement of the actual use environment, the application requirements of different places can be met by simply adjusting the structural parameters, and the use is flexible and convenient. The sound baffle based on the acoustic ultrastructure can be well applied to various places needing to shield or weaken noise, such as houses, hotels, factories, meeting rooms, and the outdoors. The utility model discloses a super structure of acoustics and sound baffle long service life, processing technology is simple, but mass production.
Drawings
Fig. 1 is a schematic structural diagram of an acoustic baffle including an acoustic superstructure according to an embodiment of the present invention.
FIG. 2 is a schematic structural view of a plurality of open grid frames having different grid opening shapes according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of an acoustic superstructure according to an embodiment of the present invention, wherein a composite film is positioned in a grid opening of an open grid frame, and a mass block is fixed on the film;
fig. 4 is a schematic perspective view of an acoustic superstructure according to an embodiment of the present invention, wherein a composite film is disposed on a grating surface of an open grating frame, and a mass block is fixed on the composite film;
fig. 5 is a partial cross-sectional view of an acoustic superstructure according to an embodiment of the present invention, wherein a predetermined distance is provided between the composite film and other material layers;
fig. 6 is a top view of an acoustic superstructure according to an embodiment of the present invention, wherein a mass is fixed to the composite membrane;
fig. 7 is a top view of an acoustic superstructure according to an embodiment of the present invention, without a mass on the composite membrane;
fig. 8 is a schematic structural diagram of several examples of the sound baffle of the embodiment of the present invention having a damping layer and a conventional sound absorption and insulation structure layer.
Detailed Description
The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the fastening may be for stable fixing (e.g., bonding, curing) or may be a detachable connection, such as magnetic attraction.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 8, an embodiment of the present invention provides an acoustic superstructure 2 based on a composite membrane, including a composite material membrane 21 and an open grid frame 22, which are stacked, wherein the composite material membrane 21 is formed by at least two materials, i.e., a first material and a second material, the first material is a colloidal material having a damping effect, and the second material is a material for adjusting mechanical properties of the composite material membrane. The second material and the open grid frame 22 have a grid opening surface parallel to the surface of the composite film 21.
Compare with the structure that traditional sound baffle adopted, the embodiment of the utility model provides an acoustic superstructure 2 that constitutes with above-mentioned structure and material has better noise reduction to make overall structure frivolous more, simultaneously, can realize the noise regulation and control through artifical allotment to specific frequency noise very conveniently. When the sound baffle is constructed, the light and thin acoustic superstructure 2 of the utility model can be used for realizing efficient low-frequency noise control, and the sound baffle can be installed in a modularized way, so that the construction is rapid and convenient; according to the noise control requirement of the actual use environment, the application requirements of different places can be met by simply adjusting the structural parameters, and the use is flexible and convenient. The sound baffle based on the acoustic ultrastructure can be well applied to various places needing to shield or weaken noise, such as houses, hotels, factories, meeting rooms, and the outdoors. The utility model discloses super structure of acoustics and adopt super structure of this acoustics's sound baffle long service life, processing technology is simple, but mass production.
Wherein the composite film 21 can be arranged to be either tension-retaining or tension-free and to achieve low-frequency sound insulation without the addition of a mass. In the preferred embodiment of the present invention, the acoustic superstructure 2 is disposed on the front and back surfaces of the composite film 21 to form a gap, which prevents the composite film 21 from contacting other layers of the sound baffle (such as the conventional sound absorption and insulation structure layer 3 shown in fig. 5) during operation, and the open grid frame 22 can be directly attached to other layers of the material.
In a preferred embodiment, the first material of the composite film 21 includes one or more of vinyl silicone rubber, phenyl silicone rubber, fluorosilicone rubber, nitrile silicone rubber, room temperature vulcanized silicone rubber, ethylene propylene rubber, butyl rubber, isoprene rubber, polyurethane, polyvinyl chloride, modified epoxy resin, unsaturated polyester; the second material comprises one or more of aluminum, aluminum alloy, steel, PET, PEEK, PI, polypropylene, nylon, polyester, polyethylene, carbon fiber, aramid fiber, glass fiber, basalt fiber and non-woven fabric; the first material and the second material form the composite material film through interlayer compounding or in-layer compounding.
In a preferred embodiment, the thickness of the composite material film 21 is 0.01-3 mm.
In a preferred embodiment, the material of the open grid framework 22 comprises one of plastic, cement, resin, aluminum alloy, glass, fiberglass composite, fiberglass reinforced plastic, wood, or a combination of several thereof, which may be a composite material.
Fig. 2 shows various open grid frame configurations having different grid opening shapes in an embodiment of the present invention. The shape of the grille opening of the opening grille framework can be adjusted according to frequency, and can be orderly arranged of openings with any shapes in principle, and the opening grille framework can be paved on a plane. Commonly used are combinations of one or more of triangles, quadrilaterals, hexagons.
In a preferred embodiment, the open grid framework 22 has a grid wall thickness of 0.1-10 mm.
In some embodiments, the composite film 21 is secured to the grid surface of the open grid framework 22; wherein, both sides of the composite material film 21 are provided with gaps, and the gaps enable the composite material film 21 not to contact with other layer materials of the sound baffle in work. Fig. 3 is a schematic perspective view of an acoustic superstructure 2 of an embodiment, wherein a composite material film 21 is positioned in a grid of an open grid frame 22, and a mass 23 is fixed on the film 21. Preferably, the composite film 21 is spaced from other material layers of the sound baffle by more than 1 mm. In one embodiment, at least one of the composite films 21 is applied to one or both end faces of the grid of the open grid framework 22. In another embodiment, the acoustic superstructure 2 comprises at least two of said open lattice frames 22, at least one of said composite films 21 being sandwiched between two of said open lattice frames 22. The solid black dots in fig. 3 indicate the mass blocks 23, and the number of the mass blocks 23 can be adjusted according to the frequency of the noise.
In a preferred embodiment, the composite film 21 is fixed within the grid of the open grid frame 22; wherein, both sides of the composite material film 21 are provided with gaps, and the gaps enable the composite material film 21 not to contact with other layer materials of the sound baffle in work. Fig. 4 is a schematic perspective view of an acoustic superstructure 2 of an embodiment, wherein a composite material film 21 is disposed on a grating surface of an open grating frame 22, and a mass 23 is fixed on the film 21. Preferably, the composite film 21 is spaced from other material layers of the sound baffle by more than 1 mm.
In a preferred embodiment, the operating frequency of the acoustic superstructure 2 is adjustable by affixing a mass 23 to said composite material membrane 21. The mass 23 may be fixed to the composite film 21 by various means such as adhesion, integral curing, or magnetic attraction.
Fig. 5 is a partial cross-sectional view of the acoustic superstructure 2 according to the preferred embodiment of the present invention, wherein the composite material film 21 is fixedly connected with the mass block 23, and meanwhile, a predetermined distance is provided between the composite material film 21 and other material layers (such as the conventional sound absorption and insulation structure layer 3), so that the composite material film 21 does not contact with the other material layers of the sound baffle during operation. Fig. 6 is a top view of an acoustic superstructure 2 according to an embodiment of the present invention, wherein a mass 23 (solid black dots indicate mass) is fixed on a composite material film 21.
The utility model discloses also can not take the quality piece on the combined material film 21 of the super structure of acoustics 2 of embodiment. Fig. 7 is a top view of an acoustic superstructure 2 according to an embodiment of the present invention, wherein the composite material film 21 has no mass (the representation without black dots in the figure has no mass). The utility model discloses in, the quality and the number for adjusting operating frequency's quality piece can increase and decrease as required, can not contain the quality piece even.
Referring to fig. 1 and 8, an acoustic baffle may include a compound membrane based acoustic superstructure 2 as described in any of the previous embodiments. In various embodiments, the acoustic baffle further comprises: one or more conventional sound absorption and insulation structure layers 3 stacked with the composite material film 21 and the open grid framework 22, and/or one or more damping layers 4 stacked with the composite material film 21 and the open grid framework 22, and/or a facing layer 1 arranged on one side or two sides of the sound barrier. Fig. 8 shows two exemplary structures of a sound baffle according to an embodiment of the present invention, including a damping layer 4 and a conventional sound absorption and insulation structure layer 3.
The number of layers of the damping layer, the conventional sound absorption and insulation structure layer and the acoustic superstructure can be adjusted according to requirements. For example, the acoustic super-structure body + the protective surface layer, the conventional sound absorption and insulation structure layer + the acoustic super-structure body + the damping layer, and the conventional sound absorption and insulation structure layer + the acoustic super-structure body + the conventional sound absorption and insulation structure layer.
Preferably, the damping layer is arranged on the surface of the conventional sound absorption and insulation structure layer.
The conventional sound absorption and insulation structure layer 3 can be a homogeneous sound insulation sheet, a composite laminated plate with or without a damping layer, a porous sound absorption material plate, a resonance sound absorption structure and other conventional sound absorption and insulation structure layers; wherein the protective layer 1 is a grating plate, a porous plate, a flat plate or a flexible packaging material, and can be made of wood, plastic, aluminum alloy, resin, glass fiber reinforced plastic, a flexible packaging material and the like; if the sound baffle is installed on the cement substrate, the protective layer 1 on the cement surface can be removed for use. The thickness of the protective layer 1 can be 0.1-1 mm.
According to the actual engineering requirements, the number of the related conventional sound absorption and insulation structure layers, the related composite membrane acoustic super-structure body and the related protective surface layer can be increased or reduced, and even the conventional sound absorption and insulation structure layers or the conventional protective surface layers can not be included.
The background section of the present invention may contain background information related to the problems or the environment of the present invention and is not necessarily descriptive of the prior art. Accordingly, the inclusion in the background section is not an admission of prior art by the applicant.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific/preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the invention, and these alternatives or modifications should be considered as belonging to the protection scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the claims.
Claims (10)
1. The utility model provides an acoustics superstructure based on complex film which characterized in that, includes the combined material film and the open grid frame of range upon range of setting, the combined material film is formed by two kinds of materials of first and second material complex at least, wherein first material is the colloid material that has damping effect, the second material is for being used for adjusting the material of the mechanical properties of combined material film, the grid opening face of open grid frame with combined material film surface is parallel.
2. The composite membrane based acoustic superstructure according to claim 1, wherein the material of said open grating frame comprises one or a combination of several of plastic, cement, resin, aluminium alloy, glass fibre composite, glass fibre reinforced plastic, wood.
3. The compound membrane based acoustic superstructure according to claim 1, characterized in that the shape of the grille openings of said open grille frame comprises a combination of one or more of triangular, quadrangular, hexagonal.
4. A composite membrane based acoustic superstructure according to any of the claims 1 to 3, wherein said composite membrane is fixed on the grating surface of said open grating frame, wherein said composite membrane has voids on both sides.
5. A composite membrane based acoustic superstructure according to claim 4, characterised in that at least one said composite membrane is applied over one or both end faces of a grille of said open grille frame, or in that said acoustic superstructure comprises at least two said open grille frames, at least one said composite membrane being sandwiched between two said open grille frames.
6. A compound membrane based acoustic superstructure according to any of the claims 1 to 3, wherein said composite film is fixed within the grille opening of said open grille frame; wherein, both sides of the composite material film are provided with gaps.
7. The composite membrane based acoustic superstructure according to any of the claims 1 to 3, wherein said first material of said composite membrane comprises a combination of one or more of vinyl silicone rubber, phenyl silicone rubber, fluorosilicone rubber, nitrile silicone rubber, room temperature vulcanized silicone rubber, ethylene propylene rubber, butyl rubber, isoprene rubber, polyurethane, polyvinyl chloride, modified epoxy, unsaturated polyester; the second material comprises one or more of aluminum, aluminum alloy, steel, PET, PEEK, PI, polypropylene, nylon, polyester, polyethylene, carbon fiber, aramid fiber, glass fiber, basalt fiber and non-woven fabric; the first material and the second material form the composite material film through interlayer compounding or in-layer compounding.
8. A compound membrane based acoustic superstructure according to any of the claims 1 to 3, further comprising a mass fixed to said composite membrane, said mass being adapted to adjust the operating frequency.
9. An acoustic baffle comprising a compound membrane based acoustic superstructure according to any of claims 1 to 8.
10. The acoustic baffle of claim 9 further comprising: the sound absorption and insulation structure layer or layers are stacked with the composite material film and the open grid framework, and/or the damping layer or layers are stacked with the composite material film and the open grid framework, and/or the protective layer is arranged on one side or two sides of the sound barrier plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020026404.9U CN211669965U (en) | 2020-01-07 | 2020-01-07 | Acoustic superstructure and sound baffle based on composite membrane |
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| CN202020026404.9U CN211669965U (en) | 2020-01-07 | 2020-01-07 | Acoustic superstructure and sound baffle based on composite membrane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111105773A (en) * | 2020-01-07 | 2020-05-05 | 深圳市航天新材科技有限公司 | Acoustic superstructure and sound baffle based on composite membrane |
| RU217696U1 (en) * | 2023-02-21 | 2023-04-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный архитектурно-строительный университет" | Soundproof enclosure with metamaterial cladding |
-
2020
- 2020-01-07 CN CN202020026404.9U patent/CN211669965U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111105773A (en) * | 2020-01-07 | 2020-05-05 | 深圳市航天新材科技有限公司 | Acoustic superstructure and sound baffle based on composite membrane |
| RU217696U1 (en) * | 2023-02-21 | 2023-04-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный архитектурно-строительный университет" | Soundproof enclosure with metamaterial cladding |
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