CN218547976U - Assembled acoustic metamaterial sound insulation module - Google Patents
Assembled acoustic metamaterial sound insulation module Download PDFInfo
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- CN218547976U CN218547976U CN202222159524.8U CN202222159524U CN218547976U CN 218547976 U CN218547976 U CN 218547976U CN 202222159524 U CN202222159524 U CN 202222159524U CN 218547976 U CN218547976 U CN 218547976U
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Abstract
The utility model discloses an assembled acoustics metamaterial sound insulation module, which belongs to the technical field of sound insulation modules, and is characterized in that a plurality of sound insulation module unit cells are configured, so that the utility model can be used independently, and can be provided with a clamping groove and a connecting piece through two sides of the unit cell according to the existing structure, and a plurality of unit cells are combined by inserting the connecting piece into the clamping groove; and the size of the unit cell, the thickness of the film and the size of the mass block can be parameterized according to the sound insulation quantity of a target frequency band.
Description
Technical Field
The utility model relates to a sound insulation module technical field especially relates to an assembled acoustics metamaterial sound insulation module.
Background
Composite sound absorption and insulation plates are widely used in the market at present, and the transmission of sound waves is reduced by using the sound absorption performance of sound absorption materials and the reflection of the sound waves under different impedance conditions. The method is realized by compounding a damping felt, a sound absorption material, a perforated plate and a uniform plate (metal and nonmetal) in a multi-layer manner. The sound insulation effect is better at medium and high frequencies and is poorer at low frequency band due to the following quality law. In order to improve the low-frequency sound insulation effect, the thickness and the number of layers of the composite material are increased to improve the surface density, so that the composite material is heavy and is limited to be used in many occasions.
In order to improve the low-frequency sound insulation quantity in the prior art, the sound insulation component is heavy, the strength of the fixed keel needs to be improved, the installation procedure is more complex, and construction is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an assembled acoustics metamaterial sound insulation module is proposed, through setting up draw-in groove and connecting piece, be convenient for aggregate erection between the sound insulation module.
To achieve the purpose, the utility model adopts the following technical proposal:
an assembled acoustic metamaterial sound insulation module comprises a plurality of unit cells, wherein each unit cell comprises a first frame, a second frame and a thin film, and the thin film is located between the first frame and the second frame; two sides of the first frame are provided with first clamping grooves, two sides of the second frame are provided with second clamping grooves, and notch parts of the first clamping grooves and the second clamping grooves are arranged oppositely; the connecting piece is inserted into the first clamping groove and the second clamping groove, so that the plurality of unit cells are combined together through the connecting piece.
The utility model discloses technical scheme lies in, first draw-in groove with opening width between the second draw-in groove is the same.
The utility model discloses technical scheme lies in, first draw-in groove and the all parallel arrangement of second draw-in groove has outer hem and interior hem, the length of outer hem is less than the length of interior hem, first draw-in groove and the second draw-in groove interior hem respectively with first frame and the laminating of second frame.
The utility model discloses technical scheme lies in, the connecting piece configuration is "H" type, the both sides long limit of connecting piece is located two adjacent respectively first draw-in groove with in the second draw-in groove, through horizontal pole in the middle of the connecting piece makes two adjacent the unit cell links to each other.
The utility model discloses technical scheme lies in, the outside cladding of connecting piece has vibration isolation rubber.
The technical proposal of the utility model is that the part which is connected and laminated by the connecting piece is not provided with a rubber strip between the unit cells.
The technical proposal of the utility model is that the unit cell is provided with a mass block, and the mass block is positioned on the film.
The utility model discloses technical scheme lies in, first frame with the second frame adopts the grid formula to set up.
The utility model discloses technical scheme lies in, first frame with the grid thickness of second frame is not less than 5 mm, and the width is not less than 5 mm.
The utility model discloses technical scheme lies in, the thickness of vibration isolation rubber is not less than 1 mm.
The beneficial effects of the utility model are that:
the utility model provides an assembled acoustics metamaterial sound insulation module, through disposing a plurality of sound insulation module unit cells, make the utility model discloses can the exclusive use, also can be according to current structure, be provided with draw-in groove and connecting piece through the both sides of unit cell, insert through the connecting piece and establish in the draw-in groove, make up a plurality of unit cells, this kind of configuration can realize the design of assembled, avoid tailorring, the on-the-spot installation is convenient, rapid; and the size of the unit cell, the thickness of the film and the size of the mass block can be parameterized according to the sound insulation quantity of a target frequency band.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a fabricated acoustic metamaterial sound insulation module unit cell provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of an overall explosion structure of a fabricated acoustic metamaterial sound insulation module unit cell provided in an embodiment of the present invention;
FIG. 3 is a top view of an overall structure of a fabricated acoustical metamaterial sound insulation module unit cell provided in an embodiment of the present invention;
FIG. 4 is a front view of an overall structure of a fabricated acoustic metamaterial sound insulation module assembly provided in an embodiment of the present invention;
fig. 5 is a schematic view of an AA viewing angle in fig. 4 of a fabricated acoustic metamaterial sound insulation module assembly provided in an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of the structure 1-1 in FIG. 6 of a fabricated acoustical metamaterial sound insulation module provided in an embodiment of the present invention;
FIG. 7 is a schematic diagram of an assembled acoustic metamaterial sound insulation module according to an embodiment of the present invention after being assembled;
FIG. 8 is a front view of an assembled acoustic metamaterial sound insulation module according to an embodiment of the present invention;
fig. 9 is an AA schematic diagram in fig. 8 of an overall structure diagram of a fabricated acoustic metamaterial sound insulation module according to an embodiment of the present invention;
fig. 10 is a schematic view of BB in fig. 8 of an overall structure of a fabricated acoustic metamaterial sound insulation module according to an embodiment of the present invention;
fig. 11 is an overall schematic view of an assembled acoustic metamaterial sound insulation module example 1 provided in an embodiment of the present invention;
fig. 12 is an overall schematic view of an assembled acoustic metamaterial sound insulation module in example 1 according to an embodiment of the present invention.
In the figure:
1. unit cell; 11. a first frame; 111. a first card slot; 12. a second frame; 121. a second card slot; 13. a film; 14. folding the edges outwards; 15. folding the edges inwards; 16. a mass block; 2. a connecting member; 21. a long side; 22. a cross bar; 23. vibration isolation rubber; 3. a rubber strip.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in figures 1-10, the utility model provides a fabricated acoustic ultrasonic deviceThe material sound insulation module comprises a plurality of unit cells 1, wherein each unit cell 1 comprises a first frame 11, a second frame 12 and a film 13, and the film 13 is positioned between the first frame 11 and the second frame 12; first card slots 111 are arranged on two sides of the first frame 11, second card slots 121 are arranged on two sides of the second frame 12, and the notch parts of the first card slots 111 and the second card slots 121 are arranged oppositely; the connecting piece 2 is inserted into the first clamping groove 111 and the second clamping groove 121, so that the plurality of unit cells 1 are combined together through the connecting piece 2, and the film 13 is firmly adhered to the first frame 11 and the second frame 12 to form a peripheral fixed constraint condition. The density of the film 13 is preferably 1000kg/m 3 The Young modulus is not lower than 2e8Pa, the thickness is preferably 0.1-1 mm, the type of the film 13 is reasonably selected according to the used acid-base environment, high temperature resistance and fireproof performance, and the size and thickness of the film 13 are designed according to the sound insulation quantity of a target frequency band after the type of the film 13 is determined. The first frame 11 and the second frame 12 are preferably made of light materials with high rigidity, such as aluminum alloy and the like; the first and second engaging grooves 111 and 121 are preferably made of the same material as the first and second frames 11 and 12, and may be fixed to the first and second frames 11 and 12 by riveting or bolting, or integrally formed by laser cutting the first and second frames 11 and 12 and the first and second engaging grooves 111 and 121.
The opening width between the first card slot 111 and the second card slot 121 is the same.
The first and second engaging grooves 111 and 121 are both provided with an outer folded edge 14 and an inner folded edge 15 in parallel, the length of the outer folded edge 14 is smaller than that of the inner folded edge 15, and the inner folded edges 15 of the first and second engaging grooves 111 and 121 are respectively attached to the first and second frames 11 and 12.
The connecting piece 2 is configured to be H-shaped, the long edges 21 on the two sides of the connecting piece 2 are respectively located in the first clamping grooves 111 and the second clamping grooves 121 which are adjacent to each other, the cross rods 22 in the middle of the connecting piece 2 enable the two adjacent unit cells 1 to be connected with each other, the size of the H-shaped connecting piece inside the H-shaped mounting piece is designed according to the thickness of the clamping grooves and the thickness of the module, the material of the H-shaped mounting piece can be stainless steel and a material with high aluminum alloy rigidity, and the H-shaped mounting piece can be cut randomly according to requirements.
As shown in figure 6, the outside of the connecting piece 2 is coated with vibration isolation rubber 23, the outside of the H-shaped connecting piece is coated with natural rubber with the thickness of 1mm, so that the modules are ensured to be tightly connected, and simultaneously, the structure-borne sound generated by the structural vibration is reduced.
The rubber strip 3 is arranged at the part, which is not connected and attached through the connecting piece 2, between the unit cells 1, the rubber strip 3 is arranged at the other side of the first clamping groove 111 and the second clamping groove 121 and used for reducing the structure borne noise caused by the structural vibration, and the material is preferably natural rubber.
The unit cell 1 is provided with a mass block 16, the mass block 16 is positioned on the membrane 13, the mass block 16 can be made of stainless steel, and the size and the thickness of the mass block are designed according to the selection of the membrane 13.
The first frame 11 and the second frame 12 can also be arranged in a grid manner, the thickness of the grids of the first frame 11 and the second frame 12 is not less than 5 mm, the width of the grids is not less than 5 mm, and the rigidity of the grids and the installation clamping grooves is ensured.
The assembly of the acoustic metamaterial module is shown in fig. 7, which takes the assembly of a 3 × 3 single-layer acoustic metamaterial module as an example.
Example 1
In practical use, the unit cells 1 can be combined through the connecting pieces, so that the unit cells 1 can be arrayed into a module, and a plurality of layers are overlapped in the thickness direction to improve the low-frequency sound insulation performance. As shown in fig. 11-12, when meeting the sound insulation of round or rectangular objects, the sound insulation can be solved by adopting a plurality of unit cells assembled and combined mode, and when meeting the sound insulation of other irregular objects, the sound insulation can be solved according to the assembled arrangement mode.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides a fabricated acoustic metamaterial sound insulation module which characterized in that:
the device comprises a plurality of unit cells (1), wherein each unit cell (1) comprises a first frame (11), a second frame (12) and a film (13), and the film (13) is positioned between the first frame (11) and the second frame (12);
two sides of the first frame (11) are provided with first clamping grooves (111), two sides of the second frame (12) are provided with second clamping grooves (121), and notch parts of the first clamping grooves (111) and the second clamping grooves (121) are arranged oppositely;
the single cell structure is characterized by further comprising a connecting piece (2), wherein the connecting piece (2) is inserted into the first clamping groove (111) and the second clamping groove (121), so that the plurality of single cells (1) are combined together through the connecting piece (2).
2. The fabricated acoustic metamaterial sound isolation module of claim 1 wherein:
the opening width between the first card slot (111) and the second card slot (121) is the same.
3. The fabricated acoustic metamaterial sound isolation module of claim 1 wherein:
the first clamping groove (111) and the second clamping groove (121) are both provided with an outer folded edge (14) and an inner folded edge (15) in parallel, the length of the outer folded edge (14) is smaller than that of the inner folded edge (15), and the inner folded edges (15) of the first clamping groove (111) and the second clamping groove (121) are respectively attached to the first frame (11) and the second frame (12).
4. The fabricated acoustic metamaterial sound insulation module of claim 1, wherein:
the connecting piece (2) is configured to be H-shaped, long sides (21) on two sides of the connecting piece (2) are respectively located in the first clamping groove (111) and the second clamping groove (121) which are adjacent to each other, and the two adjacent unit cells (1) are connected through a cross rod (22) in the middle of the connecting piece (2).
5. The fabricated acoustic metamaterial sound isolation module of claim 1 wherein:
the outer side of the connecting piece (2) is coated with vibration isolation rubber (23).
6. The fabricated acoustic metamaterial sound insulation module of claim 1, wherein:
and rubber strips (3) are arranged at the parts, which are not connected and attached through the connecting pieces (2), between the unit cells (1).
7. The fabricated acoustic metamaterial sound isolation module of claim 1 wherein:
a mass block (16) is arranged on the unit cell (1), and the mass block (16) is located on the membrane (13).
8. The fabricated acoustic metamaterial sound isolation module of claim 1 wherein:
the first frame (11) and the second frame (12) are arranged in a grid mode.
9. The fabricated acoustic metamaterial sound insulation module of claim 8, wherein:
the first frame (11) and the second frame (12) have a grid thickness of not less than 5 mm and a width of not less than 5 mm.
10. The fabricated acoustic metamaterial sound insulation module of claim 5, wherein:
the thickness of the vibration isolation rubber is not less than 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159524.8U CN218547976U (en) | 2022-08-15 | 2022-08-15 | Assembled acoustic metamaterial sound insulation module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222159524.8U CN218547976U (en) | 2022-08-15 | 2022-08-15 | Assembled acoustic metamaterial sound insulation module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218547976U true CN218547976U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222159524.8U Active CN218547976U (en) | 2022-08-15 | 2022-08-15 | Assembled acoustic metamaterial sound insulation module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218547976U (en) |
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2022
- 2022-08-15 CN CN202222159524.8U patent/CN218547976U/en active Active
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