CN105040940A - Unit acoustic panel absorber device based on sound absorption and production self-balancing principle - Google Patents
Unit acoustic panel absorber device based on sound absorption and production self-balancing principle Download PDFInfo
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- CN105040940A CN105040940A CN201510374021.4A CN201510374021A CN105040940A CN 105040940 A CN105040940 A CN 105040940A CN 201510374021 A CN201510374021 A CN 201510374021A CN 105040940 A CN105040940 A CN 105040940A
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Abstract
The invention relates to a unit acoustic panel absorber device based on a sound absorption and production self-balancing principle. The unit acoustic panel absorber device based on the sound absorption and production self-balancing principle comprises an ultra-micropore sound absorption panel, side plates and a sound absorption back plate. Edges of the ultra-micropore sound absorption panel are connected with the sound absorption back plate through the side plates so as to form a sound absorption resonant cavity. The unit acoustic panel absorber device is characterized in that the ultra-micropore sound absorption panel is respectively provided with a sound sensor and a loudspeaker with a spectral analysis function; and the sound sensor is in signal connection with the loudspeaker with the spectral analysis function. Comprehensive methods such as a sound wave positive and negative phase superposition cancellation technology are adopted. The unit acoustic panel absorber device has the advantages of wide sound absorption bandwidth, good noise reduction effect, simple structure and easiness, convenience and reliability in technological manufacturing, assembling and use. The unit acoustic panel absorber device is suitable for places in need of ceiling and wall surface decoration in various buildings, and is particularly suitable for places in need of strong sound absorption and noise reduction.
Description
Technical field
The present invention relates to a kind of sound absorption reduction equipment, particularly relate to a kind of unit acoustical board device based on suction sounding self-balancing principle needing to eliminate reverberant field for Indoor environment.
Background technology
In Modernized City Construction, more and more higher to the requirement of the indoor noise environment of big-and-middle-sized public building, particularly to the house decorative material of big-and-middle-sized public building, both needed to possess graceful decoration functions, more need to possess excellent acoustic function.And the house decorative material of traditional big-and-middle-sized public building generally to use with aperture be the ceiling and shingle nail etc. of the square or aluminium lacing film shape of the aluminum strip shape of Φ 1 ~ 3mm aperture, aluminium, although these house decorative materials have certain sound absorbing capabilities, but its actual acoustically effective is very poor, the designing requirement of modern big-and-middle-sized public building indoor noise environment index cannot be met at all.In order to overcome the defect of traditional ceiling and shingle nail existence, some follow-on ceilings and shingle nail product are there is in the market, though its sound absorbing capabilities is improved but can not reaches satisfied acoustically effective.
Chinese patent application 201120333488.1 discloses " a kind of ultra-microporous sound absorber ", and this sound absorber comprises the panel being provided with ultramicropore, and this panel surrounds cuboid; In cuboid, be provided with the sound absorption inclined tab of band ultramicropore, be provided with seal cover board at cuboid two ends.Sound absorption inclined tab can be V-type sound absorption wedge.Seal cover board can be with ultramicropore as required, also can not be with ultramicropore.Although this ultra-microporous sound absorber is conducive to improving sound absorbing capabilities, but also have the following disadvantages: although change the structure of internal cavities by sound absorption inclined tab or V-type sound absorption wedge, the oblique gradual change type cavity formed is wider from the width being sound sucting band to a great extent, but because total absorption area of each frequency band reduces, there is the trend of entire lowering in each frequency band sound absorption coefficient produced, therefore, average sound absorption coefficient is not high.
Chinese patent application 201320835639.2 discloses " a kind of metal ultramicropore sound absorption tab ", and this sound absorption lappet comprises side panel and roof supporting, is provided with ultramicropore on the side panels, and side panel and roof supporting form internal cavities; Dividing plate is provided with in the inside of internal cavities; Be provided with edge on the side panels, be provided with seal cover board at the two ends of internal cavities.The outer shape in the cross section of sound absorption lappet can be rectangle, semicircular arc or wedge shape.Difform dividing plate is set as required in the inside of cavity, is provided with seal cover board at sound absorption lappet two ends.Although this sound absorption lappet has good acoustical behavior, also have the following disadvantages: one is the impact by product size, has good acoustically effective at medium, high frequency, but relatively poor at low-frequency range acoustically effective; Two is that sound absorbing capabilities can only have good acoustically effective in this specific scope, and other frequency band acoustically effectives are poor, frequency bandwidth relative narrower.
Chinese patent 201410322266.8 discloses " a kind of acoustical board ", this acoustical board comprises sound absorption panel, closed type cavity sound absorption backboard and side, sound absorption panel is provided with one group of ultramicropore, and closed type cavity sound absorption backboard is connected with sound absorption panel and forms closed type cavity; The side being used to provide installation is arranged on the edge of sound absorption panel.Although this acoustical board can utilize closed type cavity sound absorption backboard thin plate resonance sound-absorbing, when not adding any fibrous material, good acoustically effective can be obtained, but also have the following disadvantages: one is the peculiar drawback that still there is individual layer acoustical board sound sucting band relative narrower, can not all reach good acoustically effective by each frequency band in wider frequency band range; Although two is the thin plate resonance sound-absorbings that make use of hermetic type sound absorption backboard, but contrast thin plate resonance sound-absorbing principle to analyze discovery from integral installation structure, closed cavity size is behind relatively large, the effect of acoustic pressure energy is difficult to the resonance causing thin plate, and the resonance sound-absorbing effect of thin plate will be relatively limited.
In sum, how to overcome the deficiencies in the prior art and become one of emphasis difficult problem urgently to be resolved hurrily in sound absorption reduction technical field.
Summary of the invention
The object of the invention is to provide a kind of unit acoustical board device based on inhaling sounding self-balancing principle for overcoming the deficiencies in the prior art, the present invention uses the comprehensive means such as the positive and negative Phase Stacking cancellation techniques of sound wave, not only there is the advantage of acoustic frequency bandwidth and excellent noise reduction effect, and have that structure is simple, manufacture technics and assembling reliable advantage easy to use.
According to a kind of unit acoustical board device based on inhaling sounding self-balancing principle that the present invention proposes, it comprise be provided with ultramicropore sound absorption panel, side board and sound absorption backboard, the edge of described ultramicropore sound absorption panel is connected by side board with sound absorption backboard and forms the resonant cavity that absorbs sound thus, it is characterized in that, described ultramicropore sound absorption panel is respectively equipped with the loudspeaker of sonic transducer and band spectrum analysis function, described sonic transducer is connected with the loudspeaker signal of band spectrum analysis function.
Sound absorption principle of the present invention is: according to Mr. Ma Dayou " microperforated panel resonance sound-absorbing theoretical " and thin plate resonance sound-absorbing theoretical, one is that the present invention is utilized the ultramicropore sound absorption panel of band Nano microsphere and to be connected with the backboard that absorbs sound by side board and forms the resonant cavity that absorbs sound thus and obtain good acoustically effective; Two is that the present invention utilizes the sound absorption metallic film arranging sound absorption metallic film or band Nano microsphere in sound absorption resonant cavity to eliminate the sound spectrum entered in sound absorption resonant cavity well; Three is that the present invention incorporates ultramicropore Nano microsphere in ultramicropore sound absorption panel with the material of sound absorption metallic film, show through electron-microscope scanning: the diameter of this ultramicropore Nano microsphere is distributed as hundreds of to several thousand nanometers, microballoon matrix is loose structure, have that porosity is high, good dispersion and the large distinguishing feature of specific area, therefore, it is possible to solve the problem that sound absorbing capabilities that existing sound absorption panel causes because of ultramicropore process technology bottleneck is difficult to improve further well, the sound absorbing capabilities of the carrier that makes to absorb sound increases significantly; Four is that the present invention also uses the positive and negative Phase Stacking of sound wave to offset principle, the acoustical board of block construction is transformed into the device having and inhale sounding self-balancing, is beneficial to improve acoustically effective further by the mode of the positive and negative phase cancellation of sound wave.
The present invention compared with prior art its remarkable advantage is:
First, the present invention's utilization incorporates the synergy that the ultramicropore sound absorption panel of band Nano microsphere, the metallic film that absorbs sound, sound absorption resonant cavity and suction sounding self balancing device " quaternity " produce, fundamentally solve the deficiency of existing acoustical board technical scheme, therefore there is excellent sound absorbing capabilities, achieve good acoustically effective.
Second, ultramicropore Nano microsphere of the present invention has good dispersion, porosity is high and specific area is large uniqueness, after incorporating ultramicropore sound absorption panel or sound absorption metallic film, the sound absorbing capabilities of sound absorption carrier is significantly improved, for the substantial improvements of the acoustical board material of this area has made significant contribution.
3rd, the present invention utilizes on the basis of the ultramicropore sound absorption panel incorporating band Nano microsphere, also use the positive and negative Phase Stacking principle of sound wave, the acoustical board of block construction is transformed into the device having and inhale sounding self-balancing, is beneficial to improve acoustically effective further by the mode of the positive and negative phase cancellation of sound wave
4th, the ultramicropore acoustical board of band Nano microsphere of the present invention not only has the advantage of acoustic frequency bandwidth and excellent noise reduction effect, and have that structure is simple, manufacture technics and assembling reliable advantage easy to use.
5th, unit acoustical board device of the present invention be applicable to all kinds of fire protection requirement high, purification require high place.
6th, unit acoustical board device of the present invention is suitable for the occasion needing furred ceiling and wall decoration in all kinds of building, is specially adapted to the occasion needing strong sound absorption reduction.
In sum, the present invention gives full play to the synergy between each building block of unit acoustical board, and the panel that particularly absorbs sound has composite sound absorbing function, therefore has initiative significantly.
Accompanying drawing explanation
Fig. 1 comprises Fig. 1-1 and comprises Fig. 1-2, for the structural representation of a kind of unit acoustical board device based on suction sounding self-balancing principle that the present invention proposes, wherein: the structural representation that the structural representation that Fig. 1-1 is the unit acoustical board device of employing triangular keel, Fig. 1-2 are the unit acoustical board device adopting clip fastening keel.
Fig. 2 is the structural representation of the ultramicropore sound absorption panel of the band Nano microsphere that the present invention proposes.
Fig. 3 is that the positive and negative Phase Stacking of sound wave of a kind of unit acoustical board device based on inhaling sounding self-balancing principle that the present invention proposes offsets principle schematic.
Fig. 4 is the structural representation of the sound absorption metallic film of the band Nano microsphere that the present invention proposes.
Fig. 5 is four combining structure schematic diagrames of the unit acoustical board device of the employing triangular keel that the present invention proposes.
Fig. 6 comprises Fig. 6-1 and Fig. 6-2, for six combining structure schematic diagrames of the unit acoustical board device of the employing clip fastening keel of the present invention's proposition, wherein: Fig. 6-1 is the schematic diagram adopting interval six composite assembly structure, and Fig. 6-2 is the schematic diagram adopting close spelling six composite assembly structure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
Composition graphs 1, a kind of unit acoustical board device based on inhaling sounding self-balancing principle that the present invention proposes, it comprise be provided with ultramicropore sound absorption panel (1), side board (2) and sound absorption backboard (3), the edge of described ultramicropore sound absorption panel (1) is connected by side board (2) with the backboard (3) that absorbs sound and forms the resonant cavity (4) that absorbs sound thus, wherein: the loudspeaker (8) described ultramicropore sound absorption panel (1) being respectively equipped with sonic transducer (7) and band spectrum analysis function, described sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function.
Composition graphs 1-6, the further preferred version of a kind of unit acoustical board device based on inhaling sounding self-balancing principle that the present invention proposes is:
It is contrary that the sound wave that the loudspeaker (8) of described band spectrum analysis function sends and external environment condition are delivered to the absorb sound phase place of the sound wave on panel (1) of ultramicropore, and positive and negative anti-phase acoustic wave is offseted in opposite directions.
Described sonic transducer (7) is SMD acoustic wave piezoelectric sensor, and acoustic pressure is converted into the signal of telecommunication and is transferred to the loudspeaker (8) of band spectrum analysis function by this sonic transducer (7).
The loudspeaker (8) of described band spectrum analysis function is patch type piezoelectric loudspeaker, and the loudspeaker (8) of this band spectrum analysis function passes through to analyze external environment condition sound wave spectrum and the sound wave spectrum sending antiphase with it.
The material of described ultramicropore sound absorption panel (1) is the metal material of band Nano microsphere (5).
The inside of described sound absorption resonant cavity (4) is provided with the sound absorption metallic film (6) of sound absorption metallic film (6) in parallel or band Nano microsphere (5).
The ultramicropore of described ultramicropore sound absorption panel (1) is 0.05 ~ 0.3mm.
The aperture of the Nano microsphere (5) that the sound absorption metallic film (6) of described band Nano microsphere (5) or ultramicropore absorb sound in panel (1) is 100 ~ 1000nm.
The Nano microsphere (5) that the ultramicropore of described band Nano microsphere (5) absorbs sound in the sound absorption metallic film (6) of panel (1) or band Nano microsphere (5) is uniformly distributed in irregular.
The material of the sound absorption metallic film (6) of described sound absorption metallic film (6) or band Nano microsphere (5) is aluminium foil or Copper Foil, and its thickness is 0.01 ~ 0.3mm.
The sectional area of the sound absorption metallic film (6) of described sound absorption metallic film (6) or band Nano microsphere (5) is equal with the sectional area of sound absorption resonant cavity (4).
The shape of described ultramicropore sound absorption panel (1) is square, rectangle, strip, waveform, circle or rhombus.
The material of described ultramicropore sound absorption panel (1), side board (2) or the backboard (3) that absorbs sound is aluminium alloy plate, galvanized sheet or corrosion resistant plate, and ultramicropore absorbs sound, the thickness of panel (1), side board (2) and backboard (3) three that absorbs sound is equal, and its thickness is 0.5 ~ 1.2mm.
Described side board (2) adopts absorb sound with the ultramicropore respectively edge of panel (1) and the backboard (3) that absorbs sound of triangular keel, clip fastening keel or corner brace to be connected.
According to the unit acoustical board device based on inhaling sounding self-balancing principle of the present invention of above-mentioned design, be applicable to high ferro, airport, stadiums, hospital, cinema, recording room, recording studio, broadcasting studio, audition room, business office place, TV station, radio station, multi function hall, conference room, studio hall, concert hall, hall, large-scale entertainment city, hotel, KTV, senior villa, purification workshop, railway terminal etc. to sound absorption reduction and all higher place of finishing requirements.
The specific embodiment of the acoustical board of a kind of block construction based on suction sounding self-balancing principle that the present invention proposes further illustrates as follows.
Embodiment 1: the unit acoustical board application of installation based on suction sounding self-balancing principle proposed for the present invention is in business office place, and composition graphs 1-6 is specifically described.As shown in Figure 1, its material panel is of a size of 600 × 600mm to the cross sectional shape of unit acoustical board device of the present invention, and sectional dimension is 600 × 90mm, is highly 90mm; Wherein: the material of described ultramicropore sound absorption panel (1) is the aluminium alloys of the ultramicropore of band Nano microsphere (5), and the thickness of ultramicropore sound absorption panel (1) is 0.5mm, and the aperture of Nano microsphere (5) is 100nm; Ultramicropore aperture in ultramicropore sound absorption panel (1) is 0.05mm; According to user's needs, can suppress the figure for increasing structural strength and acoustically effective at the face of part ultramicropore sound absorption panel (1), this figure is star-shaped or flower-shape; What absorb sound that panel (1) is connected with described ultramicropore is can for the side board (2) installed, the side height of this side board (2) is 30mm, side board (2) is provided with and can installs fixing sags and crests for triangular keel; Described sound absorption backboard (3) is not bored a hole, and its material is aluminium alloys, thickness is 0.5mm; Described sound absorption resonant cavity (4) is of a size of 580 × 580mm, be highly 90mm, the inside of this sound absorption resonant cavity (4) is provided with the sound absorption metallic film (6) of band Nano microsphere (5) in parallel, and the material of this sound absorption metallic film (6) is aluminium foil, its thickness is 0.01mm, sectional area aperture that is equal with the sectional area of sound absorption resonant cavity (4), Nano microsphere (5) is 100nm; Ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function; The integral installation mode of the acoustical board of the block construction based on suction sounding self-balancing principle that the present invention proposes adopts existing known triangular keel mode.
Embodiment 2: what propose for the present invention purifies in the sound absorption of electronics factory based on the unit acoustical board application of installation inhaling sounding self-balancing principle, and composition graphs 1-6 is specifically described.As shown in Figure 1, its material panel is of a size of 600 × 600mm to the cross sectional shape of unit acoustical board device of the present invention, and sectional dimension is 600 × 50mm, is highly 50mm; Wherein: the material of described ultramicropore sound absorption panel (1) is the aluminium alloys of the ultramicropore of band Nano microsphere (5), and the thickness of ultramicropore sound absorption panel (1) is 1.2mm, the aperture of Nano microsphere (5) is 500nm; Ultramicropore aperture in ultramicropore sound absorption panel (1) is 0.1mm; What absorb sound that panel (1) is connected with described ultramicropore is can for the side board (2) installed, the side height of this side board (2) is 25mm, described sound absorption backboard (3) is not bored a hole, and its material is aluminium alloys, thickness is 1.2mm; Described sound absorption resonant cavity (4) is of a size of 580 × 580mm, be highly 50mm, the inside of this sound absorption resonant cavity (4) is provided with sound absorption metallic film (6) in parallel, and the material of this sound absorption metallic film (6) is Copper Foil, its thickness is 0.2mm, sectional area is equal with the sectional area of sound absorption resonant cavity (4); Ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function; The integral installation mode of the acoustical board of the block construction based on suction sounding self-balancing principle that the present invention proposes adopts existing known triangular keel mode.
Embodiment 3: for the present invention propose based on inhaling the acoustical board application of installation of block construction of sounding self-balancing principle in the absorbing wall of station platform and end face, composition graphs 1-6 is described.As shown in Figure 1, its material panel is of a size of 500 × 500mm to the cross sectional shape of unit acoustical board device of the present invention, and sectional dimension is 500 × 60mm, is highly 60mm, wherein: the material of described ultramicropore sound absorption panel (1) is stainless steel, and the thickness of ultramicropore sound absorption panel (1) is 0.75mm, ultramicropore aperture in ultramicropore sound absorption panel (1) is 0.2mm, what absorb sound that panel (1) is connected with ultramicropore is can for the side board (2) installed, and the height of this side board (2) is 20mm, described sound absorption backboard (3) is not bored a hole, and its material is stainless steel, thickness is 0.75mm, described sound absorption resonant cavity (4) is of a size of 480 × 480mm, be highly 60mm, the inside of this sound absorption resonant cavity (4) is provided with the sound absorption metallic film (6) of band Nano microsphere (5) in parallel, the material of this sound absorption metallic film (6) is aluminium foil, its thickness is 0.3mm, sectional area is equal with the sectional area of sound absorption resonant cavity (4), the aperture of Nano microsphere (5) is 1000nm, ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function, the integral installation mode of the acoustical board of the block construction based on suction sounding self-balancing principle that the present invention proposes adopts existing known triangular keel mode.
Embodiment 4, the acoustical board application of installation of the block construction based on suction sounding self-balancing principle proposed for the present invention is in industrial premises sound absorption face, and composition graphs 1-6 is described.As shown in Figure 1, its material panel is of a size of 400 × 400mm to the cross sectional shape of unit acoustical board device of the present invention, and sectional dimension is 400 × 70mm, is highly 70mm; Wherein: the material of described ultramicropore sound absorption panel (1) is galvanized sheet, and the thickness of ultramicropore sound absorption panel (1) is 1.0mm; Ultramicropore aperture in ultramicropore sound absorption panel (1) is 0.3mm; What absorb sound that panel (1) is connected with ultramicropore is can for the side board (2) installed, and the height of this side board (2) is 20mm, its side board (2) is provided with and can installs for triangular keel the sags and crests fixed; Described sound absorption backboard (3) is not bored a hole, and its material is galvanized sheet, thickness is 1.0mm; Described sound absorption resonant cavity (4) is of a size of 380 × 380mm, highly for 70mm, the inside of this sound absorption resonant cavity (4) is provided with sound absorption metallic film (6) in parallel, and the material of this sound absorption metallic film (6) is Copper Foil, its thickness is 0.08mm, sectional area is equal with the sectional area of sound absorption resonant cavity (4); Ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function; The integral installation mode of the acoustical board of the block construction that the present invention proposes adopts existing known triangular keel mode.
Embodiment 5: the acoustical board of the block construction proposed for the present invention is applied to the sound absorption purification of electronics factory, and composition graphs 1-6 is specifically described.As shown in Figure 1, its sectional dimension is 300 × 60mm to the cross sectional shape of the acoustical board of block construction of the present invention, length dimension is 4000mm; Wherein: the material of described sound absorption panel (1) is the aluminium alloys of band Nano microsphere (5), the thickness of ultramicropore sound absorption panel (1) is 1.2mm, the aperture of Nano microsphere (5) is 500nm; Ultramicropore aperture in ultramicropore sound absorption panel (1) is 0.1mm; What absorb sound that panel (1) is connected with described ultramicropore is can for the side board (2) installed, the height of this side board (2) is 60mm, its side board (2) is provided with and can installs fixing flanging for clip fastening keel, the width of this flanging is 8mm; Described sound absorption backboard (3) is not bored a hole, and its material is aluminium alloys, thickness is 1.2mm; Described sound absorption resonant cavity (4) is of a size of 298 × 3998mm, highly for 60mm, the inside of this sound absorption resonant cavity (4) is provided with sound absorption metallic film (6) in parallel, and the material of this sound absorption metallic film (6) is Copper Foil, its thickness is 0.2mm, sectional area is equal with the sectional area of sound absorption resonant cavity (4); Ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function; The integral installation mode of the acoustical board of the block construction that the present invention proposes adopts existing known clip fastening keel mode; When the acoustical board of block construction is carried out composite assembly, the acoustical board of two module unit structures adopts close spelling mode.
Embodiment 6: the acoustical board of the block construction proposed for the present invention is applied to absorbing wall and the end face of station platform, and composition graphs 1-6 is described.As shown in Figure 1, its sectional dimension is 300 × 70mm to the cross sectional shape of the acoustical board of block construction of the present invention, length dimension is 5000mm; Wherein: the material of described sound absorption panel (1) is stainless steel, the thickness of ultramicropore sound absorption panel (1) is 0.75mm; Ultramicropore aperture in ultramicropore sound absorption panel (1) is 0.2mm; What absorb sound that panel (1) is connected with ultramicropore is can for the side board (2) installed, the height of this side board (2) is 70mm, its side board (2) is provided with and for clip fastening keel, fixing flanging can be installed, the width 8mm of this flanging; Described sound absorption backboard (3) is not bored a hole, and its material is aluminium alloys, thickness is 0.75mm; Described sound absorption resonant cavity (4) is of a size of 298 × 4998mm, highly for 70mm, the inside of this sound absorption resonant cavity (4) is provided with the sound absorption metallic film (6) of band Nano microsphere (5) in parallel, and the material of this sound absorption metallic film (6) is aluminium foil, its thickness is 0.3mm, sectional area aperture that is equal with the sectional area of sound absorption resonant cavity (4), Nano microsphere (5) is 1000nm; Ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function; The integral installation mode of the acoustical board of the block construction that the present invention proposes adopts existing known clip fastening keel mode, and the acoustical board interval of described block construction is installed, and the spacing between the acoustical board of two module unit structures is 150mm.
In the specific embodiment of the present invention, all explanations do not related to belong to the known technology of this area, can be implemented with reference to known technology.
The present invention, through validation trial, achieves satisfied trial effect.
Above detailed description of the invention and embodiment are the concrete supports to a kind of unit acoustical board device technique thought based on suction sounding self-balancing principle that the present invention proposes; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention; any equivalent variations that the technical program basis is done or the change of equivalence, all still belong to the scope of technical solution of the present invention protection.
Claims (14)
1. the unit acoustical board device based on suction sounding self-balancing principle, it comprise be provided with ultramicropore sound absorption panel (1), side board (2) and sound absorption backboard (3), the edge of described ultramicropore sound absorption panel (1) is connected by side board (2) with the backboard (3) that absorbs sound and forms the resonant cavity (4) that absorbs sound thus, it is characterized in that, described ultramicropore sound absorption panel (1) is respectively equipped with the loudspeaker (8) of sonic transducer (7) and band spectrum analysis function, described sonic transducer (7) is connected with loudspeaker (8) signal of band spectrum analysis function.
2. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 1, it is characterized in that, it is contrary that the sound wave that the loudspeaker (8) of described band spectrum analysis function sends and external environment condition are delivered to the absorb sound phase place of the sound wave on panel (1) of ultramicropore, and the positive antiphase of sound wave is offseted in opposite directions.
3. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 2, it is characterized in that, described sonic transducer (7) is SMD acoustic wave piezoelectric sensor, and acoustic pressure is converted into the signal of telecommunication and is transferred to the loudspeaker (8) of band spectrum analysis function by this sonic transducer (7).
4. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 3, it is characterized in that, the loudspeaker (8) of described band spectrum analysis function is patch type piezoelectric loudspeaker, and the loudspeaker (8) of this band spectrum analysis function passes through to analyze external environment condition sound wave spectrum and the sound wave spectrum sending antiphase with it.
5. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 4, is characterized in that, the material of described ultramicropore sound absorption panel (1) is the metal material of band Nano microsphere (5).
6. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 5, it is characterized in that, the inside of described sound absorption resonant cavity (4) is provided with the sound absorption metallic film (6) of sound absorption metallic film (6) in parallel or band Nano microsphere (5).
7. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 5 or 6, is characterized in that, the ultramicropore of described ultramicropore sound absorption panel (1) is 0.05 ~ 0.3mm.
8. the acoustical board of a kind of block construction according to claim 5 or 6, the aperture of the Nano microsphere (5) of its feature in the sound absorption metallic film (6) or ultramicropore sound absorption panel (1) of described band Nano microsphere (5) is 100 ~ 1000nm.
9. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 5 or 6, it is characterized in that, the Nano microsphere (5) that the ultramicropore of described band Nano microsphere (5) absorbs sound in the sound absorption metallic film (6) of panel (1) or band Nano microsphere (5) is uniformly distributed in irregular.
10. a kind of unit acoustical board device based on inhaling sounding self-balancing principle according to claim 6, it is characterized in that, the material of the sound absorption metallic film (6) of described sound absorption metallic film (6) or band Nano microsphere (5) is aluminium foil or Copper Foil, and its thickness is 0.01 ~ 0.3mm.
11. a kind of unit acoustical board devices based on inhaling sounding self-balancing principle according to claim 10, it is characterized in that, the sectional area of the sound absorption metallic film (6) of described sound absorption metallic film (6) or band Nano microsphere (5) is equal with the sectional area of sound absorption resonant cavity (4).
12. a kind of unit acoustical board devices based on inhaling sounding self-balancing principle according to any one of claim 1-6, it is characterized in that, the shape of described ultramicropore sound absorption panel (1) is square, rectangle, strip, waveform, circle or rhombus.
13. a kind of unit acoustical board devices based on inhaling sounding self-balancing principle according to any one of claim 1-6, it is characterized in that, the material of described ultramicropore sound absorption panel (1), side board (2) or the backboard (3) that absorbs sound is aluminium alloy plate, galvanized sheet or corrosion resistant plate, and ultramicropore absorbs sound, the thickness of panel (1), side board (2) and backboard (3) three that absorbs sound is equal, and its thickness is 0.5 ~ 1.2mm.
14. a kind of unit acoustical board devices based on inhaling sounding self-balancing principle according to any one of claim 1-6, it is characterized in that, described side board (2) adopts absorb sound with the ultramicropore respectively edge of panel (1) and the backboard (3) that absorbs sound of triangular keel, clip fastening keel or corner brace to be connected.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510374021.4A CN105040940B (en) | 2015-06-30 | 2015-06-30 | A kind of unit sound absorption panel assembly based on suction sounding self-balancing principle |
| EP15896982.4A EP3296479B1 (en) | 2015-06-30 | 2015-11-04 | Sound absorption plate with unit structure |
| US15/576,702 US10026390B2 (en) | 2015-06-30 | 2015-11-04 | Sound absorption plate with unit structure |
| PCT/CN2015/093811 WO2017000454A1 (en) | 2015-06-30 | 2015-11-04 | Sound absorption plate with unit structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510374021.4A CN105040940B (en) | 2015-06-30 | 2015-06-30 | A kind of unit sound absorption panel assembly based on suction sounding self-balancing principle |
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| CN105040940A true CN105040940A (en) | 2015-11-11 |
| CN105040940B CN105040940B (en) | 2017-07-28 |
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| CN201510374021.4A Active CN105040940B (en) | 2015-06-30 | 2015-06-30 | A kind of unit sound absorption panel assembly based on suction sounding self-balancing principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176222A (en) * | 2019-05-29 | 2019-08-27 | 云谷（固安）科技有限公司 | A kind of display sounding panel and terminal device |
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| CN105040940B (en) | 2017-07-28 |
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