Abstract
Disclosed is a sound absorption plate with a unit structure. The sound absorption plate comprises an ultramicropore sound absorption front plate (1), a side plate (2) and a sound absorption back plate (3). Edge parts of the ultramicropore sound absorption front plate (1) are connected to the sound absorption back plate (3) through the side plate (2), thereby forming a sound absorption resonant cavity (4). The material of the ultramicropore sound absorption front plate (1) is a metal material carrying nano microspheres (5). A sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). A pore size of the nano microspheres in the ultramicropore sound absorption front plate (1) and the sound absorption metal thin film (6) is 100-1000 nm. The sound absorption plate has a simple structure, simple and convenient manufacture and assembly, a wide sound absorption frequency band and a good noise reduction effect, and is suitable for ceiling and wall decoration of buildings.
Claims
1. A sound absorption plate with a unit structure, wherein the unit structure comprises: an ultramicropore sound absorption panel, wherein the ultramicropore sound absorption panel is a metal plate carrying first nano microspheres and a pore size of the nano microspheres is 100-1000 nm; a sound absorption back plate; and a side plate, wherein edge parts of the ultramicropore sound absorption panel are connected to the sound absorption back plate through the side plate to form a sound absorption resonant cavity.
2. The sound absorption plate of claim 1, wherein a pore size of the first nano ultramicropores of the ultramicropore sound absorption panel is 0.05-0.3 mm.
3. The sound absorption plate of claim 1, wherein the ultramicropore sound absorption panel and the sound absorption back plate independently are an aluminum alloy plate, a galvanized plate or a stainless steel plate, and the ultramicropore sound absorption panel and the sound absorption back plate have the same thicknesses of 0.5-1.2 mm.
4. The sound absorption plate of claim 1, wherein the unit structure further comprises: a sound absorption metal thin film carrying second nano microspheres, wherein the sound absorption metal thin film is disposed in the sound absorption resonant cavity to be parallel to the ultramicropore sound absorption panel, and a pore size of the second nano microspheres is 100-1000 nm.
5. The sound absorption plate of claim 4, wherein the first and second nano microspheres are in an irregular dense arrangement.
6. The sound absorption plate of claim 4, wherein the sound absorption metal thin film is an aluminum foil or a copper foil, having a thickness of 0.01-0.3 mm.
7. The sound absorption plate of claim 4, wherein a cross-sectional area of the sound absorption metal thin film is equal to that of the sound absorption resonant cavity.
8. The sound absorption plate of claim 4, wherein the unit structure further comprises: a sound sensor disposed on the ultramicropore sound absorption panel, wherein the sound sensor senses environmental sound waves and produces a corresponding detection signal; and a speaker, with a spectral analysis function, disposed on the ultramicropore sound absorption panel, wherein the speaker receives the detection signal and emits sound waves having an opposite phases and amplitudes to those of the environmental sound waves and thus the environmental sound waves can be cancelled out.
9. The sound absorption plate of claim 8, wherein the sound sensor is a SMD sound wave piezoelectric sensor, which converts sound wave pressure into an electrical signal transferred to the speaker.
10. The sound absorption plate of claim 9, wherein the speaker is a SMD piezoelectric speaker, which receives the electrical signal and analyses a spectrum of the environmental sound waves to emit the sound waves having opposite phases to those of the environmental sound waves.
11. The sound absorption plate of claim 8, wherein the speaker is a SMD piezoelectric speaker, which receives the detection signal and analyses a spectrum of the environmental sound waves to emit the sound waves having opposite phases to those of the environmental sound waves.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 is a schematic view of a technical solution A of a sound absorption plate with a unit structure installed by using triangular keels.
(2) FIG. 2-1 is a schematic view of the technical solution B of a sound absorption plate with a unit structure installed by using triangular keels, and FIG. 2-2 is a schematic view of the technical solution B of a sound absorption plate with a unit structure installed by using snap keels.
(3) FIG. 3 is a schematic view of a structure of an ultramicropore sound absorption front plate in the technical solution A or B of a sound absorption plate with a unit structure, according to the present invention.
(4) FIG. 4 is a schematic view of a structure of a sound absorption metal thin film carrying nano microspheres according to the present invention.
(5) FIG. 5-1 is a schematic view of the technical solution C of a sound absorption plate with a unit structure using triangular keels, and FIG. 5-2 is a schematic view of the technical solution C of a sound absorption plate with a unit structure installed by using snap keels.
(6) FIG. 6 is a schematic view of a structure of an ultramicropore sound absorption front plate in the technical solution C of a sound absorption plate with a unit structure, according to the present invention.
(7) FIG. 7 is a schematic view of the superposition and cancellation principle of positive and negative phases of sound wave of the technical solution C of a sound absorption plate with a unit structure, according to the present invention.
(8) FIG. 8 is a schematic view of a structure of a sound absorption plate with a unit structure by combining seamless splicing installation and installation with triangular keels.
(9) FIG. 9 is a schematic view of a structure of a sound absorption plate with a unit structure by combining seamless splicing installation and installation with snap keels.
(10) FIG. 10 is a schematic view of a structure of a sound absorption plate with a unit structure by combining interval installation and installation with snap keels.
DESCRIPTION OF THE EMBODIMENTS
(11) A detailed description of the present invention will be further given below in detail with reference to the accompanying drawings and embodiments.
(12) With reference to FIGS. 1, 2 and 5, a technical solution A of a sound absorption plate with a unit structure of the present invention includes an ultramicropore sound absorption front plate (1), a side plate (2) and a sound absorption back plate (3). Edge parts of the ultramicropore sound absorption front plate (1) are connected to the sound absorption back plate (3) through the side plate (2), thereby forming a sound absorption resonant cavity (4). The material of the ultramicropore sound absorption front plate (1) is a metal material carrying nano microspheres (5). A pore size of the nano microspheres (5) in the ultramicropore sound absorption front plate (1) is 100-1000 nm. A technical solution B of a sound absorption plate with a unit structure of the present invention further includes, based on the technical solution A, a sound absorption metal thin film (6) carrying nano microspheres (5), which are disposed to be parallel to the ultramicropore sound absorption front plate and inside the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) in the sound absorption metal thin film (6) is 100-1000 nm. A technical solution C of a sound absorption plate with a unit structure of the present invention further includes, based on the technical solution B, a sound sensor (7) and a speaker (8) with a spectral analysis function disposed on the ultramicropore sound absorption front plate (1) respectively. The sound sensor (7) is in signal connection with the speaker (8) with a spectral analysis function. The speaker (8) with a spectral analysis function emits, according to a detection signal of the sound sensor (7), a sound wave having a phase to opposite to a phase of a sound wave transmitted to the ultramicropore sound absorption front plate (1) from an external environment, such that positive and negative phases of the sound waves suffer from mutual cancellation.
(13) Further preferred solutions of the technical solutions A, B and C of a sound absorption plate with a unit structure of the present invention as described above are that:
(14) A pore size of ultramicropores in the ultramicropore sound absorption front plate (1) is 0.05-0.3 mm.
(15) The nano microspheres (5) in the sound absorption metal thin film (6) or the ultramicropore sound absorption front plate (1) are in an irregular dense arrangement.
(16) The material of the sound absorption metal thin film (6) carrying the nano microspheres (5) is aluminum foil or copper foil, with a thickness of 0.01-0.3 mm.
(17) A cross-sectional area of the sound absorption metal thin film (6) carrying the nano microspheres (5) is equal to that of the sound absorption resonant cavity (4).
(18) The material of either the ultramicropore sound absorption front plate (1) or the sound absorption back plate (3) is an aluminum alloy plate, a galvanized plate or a stainless steel plate, and the ultramicropore sound absorption front plate (1) and the sound absorption back plate (3) have the same thicknesses of 0.5-1.2 mm.
(19) The sound sensor (7) is a SMD (surface mounted device) sound wave piezoelectric sensor, and converts sound wave pressure into an electrical signal and transfers the electrical signal to the speaker (8) with a spectral analysis function.
(20) The speaker (8) with a spectral analysis function is a SMD piezoelectric speaker, and analyses a sound wave spectrum of an external environment to emit a sound wave spectrum having an opposite phase thereto.
(21) In addition to the above solutions, the shape of the ultramicropore sound absorption front plate (1) may be a square shape, a rectangular shape, a long strip shape, a wave shape, a circular shape, or a diamond shape. The side plate (2) adopts triangular keels, snap keels or corner braces to be connected to edge parts of the ultramicropore sound absorption front plate (1) and the sound absorption back plate (3) respectively. A surface layer of the ultramicropore sound absorption front plate (1) is pressed with patterns for increasing the structural strength or the sound absorption effect.
(22) The technical solutions A, B and C of a sound absorption plate with a unit structure of the present invention all apply to places having high requirements for sound absorption and noise reduction and decoration, such as high-speed rails, airports, sports venues, hospitals, theaters, recording studios, recording rooms, broadcasting studios, audition rooms, business office spaces, television stations, radio stations, multi-function halls, conference rooms, studios, music halls, auditoriums, large-scale entertainment centers, hotels, KTV, superior villas, cleaning plants, railway stations.
(23) Specific embodiments of a sound absorption plate with a unit structure of the present invention are further described as follows.
(24) Embodiment 1: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied to a business office space, and specific description is made with reference to FIGS. 1, 3 and 8. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a front plate dimension of 600600 mm, a sectional dimension of 60090 mm, and a height of 90 mm. The material of the ultramicropore sound absorption front plate (1) is aluminium alloy carrying nano microspheres (5), a thickness of the ultramicropore sound absorption front plate (1) is 0.5 mm, and a pore size of the nano microspheres (5) is 100 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.05 mm According to user's requirements, a part of the surface of the ultramicropore sound absorption front plate (1) may be pressed with patterns for increasing the structural strength and the sound absorption effect, and the patterns are star patterns or flower patterns. The side plate (2) available for installation is connected to the ultramicropore sound absorption front plate (1), a side height of the side plate (2) is 30 mm, and concave points and convex points available for installation and fixation of triangular keels are disposed on the side plate (2). The sound absorption back plate (3) is not perforated, and has a material of aluminium alloy and a thickness of 0.5 mm. The sound absorption resonant cavity (4) has a dimension of 580580 mm and a height of 90 mm. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with triangular keels.
(25) Embodiment 2: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied to a business office space, and specific description is made with reference to FIGS. 4, 5-1, 6, 7 and 8. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a material plate dimension of 600600 mm, a sectional dimension of 60090 mm, and a height of 90 mm. The material of the ultramicropore sound absorption front plate (1) is aluminium alloy carrying nano microspheres (5), a thickness of the ultramicropore sound absorption front plate (1) is 0.5 mm, and a pore size of the nano microspheres (5) is 100 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.05 mm. According to user's requirements, a part of the surface of the ultramicropore sound absorption front plate (1) may be pressed with patterns for increasing the structural strength and the sound absorption effect, and the patterns are star patterns or flower patterns. The side plate (2) available for installation is connected to the ultramicropore sound absorption front plate (1), a side height of the side plate (2) is 30 mm, and concave points and convex points available for installation and fixation of triangular keels are disposed on the side plate (2). The sound absorption back plate (3) is not perforated, and has a material of aluminium alloy and a thickness of 0.5 mm. The sound absorption resonant cavity (4) has a dimension of 580580 mm and a height of 90 mm, and the sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). The sound absorption metal thin film (6) has a material of aluminum foil, a thickness of 0.01 mm, and a sectional area equal to that of the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) is 100 nm. The sound sensor (7) and the speaker (8) with a spectral analysis function are disposed on the ultramicropore sound absorption front plate (1) respectively. The sound sensor (7) is in signal connection with the speaker (8) with a spectral analysis function. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with triangular keels.
(26) Embodiment 3: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied for sound absorption and cleaning of an electronic production plant, and specific description is made with reference to FIGS. 2-2, 3, 4 and 9. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a sectional dimension of 30060 mm, and a length dimension of 4000 mm. The material of the ultramicropore sound absorption front plate (1) is aluminium alloy carrying nano microspheres (5), a thickness of the ultramicropore sound absorption front plate (1) is 1.2 mm, and a pore size of the nano microspheres (5) is 500 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.1 mm. The side plate (2) available for installation is connected to the ultramicropore sound absorption front plate (1), a side height of the side plate (2) is 60 mm, and folding edges available for installation and fixation of snap keels are disposed on the side plate (2), a width of the folding edge being 8 mm. The sound absorption back plate (3) is not perforated, and has a material of aluminium alloy and a thickness of 1.2 mm. The sound absorption resonant cavity (4) has a dimension of 2983998 mm and a height of 60 mm, and the sound absorption metal thin film (6) with nano microspheres, parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). The sound absorption metal thin film (6) has a material of copper foil, a thickness of 0.2 mm, and a sectional area equal to that of the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) is 500 nm. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with snap keels. When sound absorption plates with a unit structure are combined and assembled, two adjacent sound absorption plates with a unit structure adopt seamless splicing.
(27) Embodiment 4: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied to sound absorption wall surfaces and top surfaces of a station platform, and specific description is made with reference to FIGS. 2-2, 3, 4 and 10. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a sectional dimension of 30070 mm, and a length dimension of 5000 mm. The material of the ultramicropore sound absorption front plate (1) is stainless steel, a thickness of the ultramicropore sound absorption front plate (1) is 0.75 mm, and a pore size of the nano microspheres (5) is 1000 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.2 mm. The side plate (2) available for installation is connected to the ultramicropore sound absorption front plate (1), a height of the side plate (2) is 70 mm, and folding edges available for installation and fixation of snap keels are disposed on the side plate (2), a width of the folding edge being 8 mm. The sound absorption back plate (3) is not perforated, and has a material of stainless steel and a thickness of 0.75 mm. The sound absorption resonant cavity (4) has a dimension of 2984998 mm and a height of 70 mm, and the sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). The sound absorption metal thin film (6) has a material of aluminum foil, a thickness of 0.3 mm, and a sectional area equal to that of the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) is 1000 nm. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with snap keels, the sound absorption plates with a unit structure are installed at intervals, and an interval between two adjacent sound absorption plates with a unit structure is 150 mm.
(28) Embodiment 5: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied to sound absorption surfaces of an industrial plant, and specific description is made with reference to FIGS. 4, 5-1, 6, 7 and 8. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a material plate dimension of 600600 mm, a sectional dimension of 60070 mm, and a height of 70 mm. The material of the ultramicropore sound absorption front plate (1) is a galvanized plate, a thickness of the ultramicropore sound absorption front plate (1) is 1.0 mm, and a pore size of the nano microspheres (5) is 1000 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.3 mm. The side plate (2) available for installation is connected to the ultramicropore sound absorption front plate (1), a height of the side plate (2) is 30 mm, and concave points and convex points available for installation and fixation of the triangular keels are disposed on the side plate (2). The sound absorption back plate (3) is not perforated, and has a material of galvanized plate and a thickness of 1.0 mm. The sound absorption resonant cavity (4) has a dimension of 580580 mm and a height of 70 mm, and the sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). The sound absorption metal thin film (6) has a material of copper foil, a thickness of 0.08 mm, and a sectional area equal to that of the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) is 1000 nm. The sound sensor (7) and the speaker (8) with a spectral analysis function are disposed on the ultramicropore sound absorption front plate (1) respectively. The sound sensor (7) is in signal connection with the speaker (8) with a spectral analysis function. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with triangular keels.
(29) Embodiment 6: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied for sound absorption cleaning of an electronic production plant, and specific description is made with reference to FIGS. 4, 5-2, 6, 7 and 9. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a sectional dimension of 30060 mm, and a length dimension of 4000 mm. The material of the ultramicropore sound absorption front plate (1) is aluminium alloy carrying nano microspheres (5), a thickness of the ultramicropore sound absorption front plate (1) is 1.2 mm, and a pore size of the nano microspheres (5) is 500 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.1 mm. The side plate (2) available for installation is connected to the ultramicropore sound absorption front plate (1), a height of the side plate (2) is 60 mm, and folding edges available for installation and fixation of snap keels are disposed on the side plate (2), a width of the folding edge being 8 mm. The sound absorption back plate (3) is not perforated, and has a material of aluminium alloy and a thickness of 1.2 mm. The sound absorption resonant cavity (4) has a dimension of 2983998 mm and a height of 60 mm, and the sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). The sound absorption metal thin film (6) has a material of copper foil, a thickness of 0.2 mm, and a sectional area equal to that of the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) is 500 nm. The sound sensor (7) and the speaker (8) with a spectral analysis function are disposed on the ultramicropore sound absorption front plate (1) respectively. The sound sensor (7) is in signal connection with the speaker (8) with a spectral analysis function. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with snap keels. When sound absorption plates with a unit structure are combined and assembled, two adjacent sound absorption plates with a unit structure adopt seamless splicing.
(30) Embodiment 7: in this embodiment, the sound absorption plate with a unit structure of the present invention is applied to sound absorption wall surfaces and top surfaces of a station platform, and specific description is made with reference to FIGS. 4, 5-2, 6, 7 and 10. A cross-sectional shape of the sound absorption plate with a unit structure of the present invention is as shown in FIG. 1, having a sectional dimension thereof of 30070 mm, and a length dimension of 5000 mm. The material of the ultramicropore sound absorption front plate (1) is stainless steel, a thickness of the ultramicropore sound absorption front plate is 0.75 mm, and a pore size of the nano microspheres (5) is 1000 nm. A pore size of the ultramicropores in the ultramicropore sound absorption front plate (1) is 0.2 mm. The side plate available for installation is connected to the ultramicropore sound absorption front plate (1), a height of the side plate (2) is 70 mm, and folding edges available for installation and fixation of snap keels are disposed on the side plate (2), a width of the folding edge being 8 mm. The sound absorption back plate (3) is not perforated, and has a material of aluminium alloy and a thickness of 0.75 mm. The sound absorption resonant cavity (4) has a dimension of 2984998 mm and a height of 70 mm, and the sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption front plate, is disposed inside the sound absorption resonant cavity (4). The sound absorption metal thin film (6) has a material of aluminum foil, a thickness of 0.3 mm, and a sectional area equal to that of the sound absorption resonant cavity (4). A pore size of the nano microspheres (5) is 1000 nm. The sound sensor (7) and the speaker (8) with a spectral analysis function are disposed on the ultramicropore sound absorption front plate (1) respectively. The sound sensor (7) is in signal connection with the speaker (8) with a spectral analysis function. The overall installation way of the sound absorption plate with a unit structure of the present invention adopts an existing well-known installation with snap keels, the sound absorption plates with a unit structure are installed at intervals, and an interval between two adjacent sound absorption plates with a unit structure is 150 mm.
(31) The contents not specifically described in the detailed description of the present invention are known in the art and may be implemented with reference to known techniques.
(32) The present invention has been verified via repeated tests, and satisfactory test results are achieved.
(33) The specific embodiments and examples above are provided to support the technical concepts of a sound absorption plate with a unit structure of the present invention, and are not intended to limit the scope of protection of the present invention. Any equivalent modification or variations made based on the present technical solution following the technical concepts of the present invention, all fall within the scope of protection of the present invention.
