CN208180429U - A kind of sound-absorbing honeycomb plate - Google Patents
A kind of sound-absorbing honeycomb plate Download PDFInfo
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- CN208180429U CN208180429U CN201721631742.XU CN201721631742U CN208180429U CN 208180429 U CN208180429 U CN 208180429U CN 201721631742 U CN201721631742 U CN 201721631742U CN 208180429 U CN208180429 U CN 208180429U
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- micropunch
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- absorbing honeycomb
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Abstract
The utility model relates to a kind of sound-absorbing honeycomb plate, it includes the cellular board (7) of middle layer, it is characterized in that the upper layer and lower layer of cellular board (7) are compounded with micropunch abatvoix (5), it is coated with the glass-fiber-plate (6) of glue between micropunch abatvoix (5) and the top surface up and down of cellular board (7) by one layer respectively, micropunch abatvoix (5) includes the plate body (1) of horizontal, it is characterized in that rearwardly side is provided with the recess (2) being evenly arranged in the front of the plate body (1), the recess (2) is provided with micropunch (4) to more sides of its horizontal direction, micropunch (4) is also formed the sound channel at this, and be recessed (2) bottom formed blocking portion (3).The advantages of the utility model micropunch abatvoix has without cooperating sound absorbing paper, and sound-absorbing effect is good, and plate body hardness itself is high, can be suitable for special pouring occasion, can be realized batch production.
Description
Technical field
The utility model relates to a kind of sound-absorbing honeycomb plates.
Background technique
Sound-absorbing honeycomb plate is that plate face is big, flatness is high, timber intensity is high, light-weight, sound absorption effect is good, is widely used in each
Kind needs the occasion of absorbing sound and lowering noise.
The Chinese patent of Patent No. 201220025895.0 discloses a kind of sound-absorbing honeycomb plate, by double-sided perforated aluminum bee
Nest plate, high-quality sound absorbing paper, polyester fiber acoustical cotton, not perforated aluminium alloy panel and aluminum alloy back plate constitute the box of one side opening
Son composition, the punching aluminium sheet that cellular board uses surface to be formed with pitch-row as 0.7mm, aperture 2.5mm, percent opening 23%.However this
The requirement of special occasions is still not achieved in the absorbing sound and lowering noise function of kind sound-absorbing honeycomb plate.
Such as bulk furred ceiling at the top of airport, the big plate of 1500*2000 can be stayed using the inadequate plate of single layer abatvoix furred ceiling intensity；Again
If subway, high-speed rail generate vibration under steam, top plate is easily deformed, is fallen off using single layer abatvoix.Therefore in this micropore sound-absorbing
Sound-absorbing honeycomb plate is developed on panel products, while with sound absorption function, increases product strength, is met installation under specific environment and is wanted
It asks.
The penetration hole diameter of common perforated plate is controlled to 1mm hereinafter, being formed microperforated panel.At this point, microperforated panel
Inherently there is enough acoustic resistances, while there is sufficiently low mass reactance, formed broadband sound absorber, without adding
Any porous material.With the development and raising of material and perforation processing technology and wideband, efficient, cleaning, environmentally friendly sound absorption
Feature, microperforated panel soundabsorbing construction are widely used in the metope in numerous places and top surface finishing.
Microperforated panel is considered as the parallel connection of a large amount of micro-pipes (micropunch), and each micropunch is a very thin short tube,
When pitch of holes is more much larger than aperture, it will be assumed that the characteristic in each hole is independent of each other, and the acoustic impedance of microperforated panel is simply equal to single hole
Acoustic impedance divided by hole quantity.When sound wave is propagated in pipe, the influence of viscosity is considered, particle is along axial vibration on tube wall
Dynamic speed is zero, and vibration velocity on center shaft is maximum, and along radial direction, there are velocity step ladders in pipe.On the other hand between hole
Away from it is more much smaller than wavelength when, plate face also can be ignored the reflection of sound wave between hole.
" the accurate theoretical and design of porous plate acoustic adsorption device " that Ma Dayou academician 1997 delivers in acoustic journal and
" potentiality of porous plate acoustic adsorption device " academic article delivered in Acoustical Society of America's magazine in 1998, it is indicated that by penetration hole diameter
It further decreases, can get the more wide sound absorber of sound sucting band.Its suction will be showed by bringing micropunch into the ultramicropore epoch
Receive the frightened human potential of performance.
Micropunch abatvoix currently on the market can only accomplish the aperture of 0.7mm, and hole is the straight hole perpendicular to plate face, directly
Hole effect during sound-absorbing is poor, and enclosing sound absorbing paper at the back side of this micropunch abatvoix can be only achieved preferable sound-absorbing effect
Fruit.
It includes plate body that the Chinese patent of Patent No. 201610754469.3, which discloses a kind of micropunch abatvoix, on plate body
It is provided with the micropunch being evenly arranged, micropunch is diagonally disposed, forms blocking portion, blocking portion and micropunch at the back side of micropunch
Between there are gap, gap combines to form sound channel with micropunch.However the aperture of the micropunch of this micropunch abatvoix
Form may be only available for plate body with a thickness of 0.8-1mm, the lesser aluminium alloy of hardness or galvanized steel, so that micropunch abatvoix
It is softer, the pouring of certain specific use environments is not achieved, therefore be badly in need of developing the suction of micropore made of harder metal plate
Sound plate.But harder metal plate material is hard, and it is lower using die life when red needle acanthopore technique, it needs often more
It changes, cannot achieve batch production.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide one kind without cooperating sound absorbing paper, and sound-absorbing effect is good, plate
Body hardness itself is high, can be suitable for special pouring occasion, can be realized the sound-absorbing honeycomb plate of batch production.
Purpose of the utility model is realized as follows:
A kind of sound-absorbing honeycomb plate, it includes the cellular board of middle layer, and the upper layer and lower layer of cellular board are compounded with micropunch sound-absorbing
It is coated with the glass-fiber-plate of glue, micropunch sound-absorbing between the top surface up and down of plate, micropunch abatvoix and cellular board by one layer respectively
Plate, glass-fiber-plate and cellular board are by hot pressing composite molding, and micropunch abatvoix includes the plate body of horizontal, it is characterised in that the plate
Rearwardly side is provided with the recess being evenly arranged in the front of body, and described be recessed is provided with micro- wear to more sides of its horizontal direction
Hole, micropunch is also formed sound channel, and blocking portion is formed on the bottom being recessed.
As a preference, the front projection shape of the recess is the polygon with even number of sides, during which is
The symmetrical shape of the heart, the long side and short side that polygon has length different, long side and short side arranged for interval.
As a preference, the vickers hardness hv 200-HV500 of plate body.
As a preference, the thickness 0.5-2mm of plate body.
As a preference, the aperture of micropunch is 0.02-1mm.
As a preference, the aperture of micropunch is 0.02-0.04mm.
As a preference, the horizontal and vertical spacing range of adjacent recess is 2-20mm.
As a preference, the punching rate range of micropunch is 0.02%-20%.
As a preference, the acoustic absorptivity range of micropunch abatvoix is NRC0.5-0.9.
Compared with prior art, the utility model has the beneficial effects that
The utility model passes through during sound wave is rearwardly propagated from plate body front due to the micropunch that recess is formed
The portion of being blocked is stopped before sound channel, reduces intensity, finally comes out from the sound channel that micropunch is formed, there is one
Point can also the portion of being blocked carry out absorption reflection, to preferably improve sound-absorbing effect.Additionally, due to recess be by mold for cross
The biggish polygonized structure in section has increase accordingly the intensity of mold, so that mold work under the premise of using same material
Service life, which improves, can be suitable for batch production.Therefore the utility model sound-absorbing honeycomb plate has without cooperating sound absorbing paper, sound-absorbing effect
The advantages of fruit is good, and plate body hardness itself is high, can be suitable for special pouring occasion, can be realized batch production.
Detailed description of the invention
Fig. 1 is the front view of the utility model micropunch abatvoix embodiment 1.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the B-B cross-sectional view of Fig. 1.
Fig. 4 is the recess front view of the utility model micropunch abatvoix embodiment 1.
Fig. 5 is the recess front view of the utility model micropunch abatvoix embodiment 2.
Fig. 6 is the recess schematic diagram of the utility model micropunch abatvoix embodiment 3.
Fig. 7 is the structural schematic diagram of sound-absorbing honeycomb plate.
Wherein:
Plate body 1, recess 2, blocking portion 3, micropunch 4, micropunch abatvoix 5, glass-fiber-plate 6, cellular board 7.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1-Fig. 7, the utility model relates to a kind of sound-absorbing honeycomb plate, it includes the cellular board 7 of middle layer, honeycomb
The upper layer and lower layer of plate 7 are compounded with micropunch abatvoix 5, pass through respectively between micropunch abatvoix 5 and the top surface up and down of cellular board 7
One layer of glass-fiber-plate 6 for being coated with glue, micropunch abatvoix 5, glass-fiber-plate 6 and cellular board 7 pass through hot pressing composite molding, cellular board 7
With a thickness of 5.8mm.
Due to being coated with the presence of the glass-fiber-plate 6 of glue, so that the micropunch 4 of micropunch abatvoix 5 will not be blocked by glue.
Glass-fiber-plate lies in 5 back side of micropunch abatvoix, and the uniform glue spraying of glue rifle is on glass-fiber-plate.Since glass fiber plate texture more slightly has
Gap, glue are impregnated on micropunch abatvoix 5 through gap, and the such gluing of micropunch abatvoix 5 water distribution is uniform, are solved
The problem of glue plug-hole and surface excessive glue, then it is compound by hot pressing, ultimately form sound-absorbing honeycomb plate.
Micropunch abatvoix 5 includes the plate body 1 of horizontal, and the plate body 1 is steel plate, the vickers hardness hv 200- of plate body 1
HV500, the thickness 0.5-2mm of plate body 1, rearwardly side is provided with the recess 2 being evenly arranged in the front of the plate body 1, described
Recess 2 is provided with micropunch 4 to more sides of its horizontal direction, the arrangement as a preference, multiple micropunch 4 are centrosymmetric,
Micropunch 4 is also formed sound channel, and blocking portion 3 is formed on the bottom of recess 2.The horizontal spacing of recess 2 is a, recess 2
Longitudinal pitch be b.
Due to the micropunch that recess is formed, during sound wave is rearwardly propagated from plate body front, before sound channel
The portion of being blocked is stopped, and intensity is reduced, and is finally come out from the sound channel that micropunch is formed, some can also be hindered
Stopper carries out absorption reflection, to preferably improve sound-absorbing effect.
The aperture of micropunch 4 is 0.02-1mm, as a preference, the aperture of micropunch 4 is 0.02-0.04mm, recess 2
Horizontal and vertical spacing range be 2-20mm.The punching rate range of micropunch 4 is 0.02%-20%.Micropunch abatvoix
Acoustic absorptivity range is NRC0.5-0.9.
The front projection shape of the recess is the polygon with even number of sides, symmetrical shape centered on the polygon,
The long side and short side that polygon has length different, long side and short side arranged for interval.Long side length 3-20mm, bond length 2-
15mm。
The recess 2 is to be molded to be formed by the mold of respective shapes, and mold includes the downwardly convex of mutually matched top
If dynamic model and lower section the cover half to lower recess, the working face projection of shape of the formed punch of dynamic model is with the polygon of even number of sides
Shape, symmetrical shape centered on the polygon, the long side and short side that polygon has length different, long side and short side interval cloth
It sets.In the bottom of recess 2 since molding forms blocking portion 3, horizontally disposed micropunch 4 is formed at the 2 corresponding short sides that are recessed,
Micropunch 2 also forms sound channel.
Embodiment 1,
Referring to fig. 4,2 shape of being recessed is quadrangle, that is, rectangle, and quadrangle includes two long sides and two short sides,
It is that cambered surface is excessive in the front of two long edge position plates 1 of rectangle to the front of recess 2, the front of plate 1 at two short sides of rectangle
Facade is formed to the blocking portion 3 of 2 bottom surfaces of recess, forms micropunch 4 at two below facade outward, the corresponding shape of recess 2 at one
At two micropunch 4, the cross sectional shape of micropunch 4 is the semicircle that the plate body back side is directed toward on convex surface.Plate 1 is long with a thickness of 0.7mm
Edge lengths are 3mm, and bond length 2mm, 4 width of micropunch is 0.04mm, and 4 height of micropunch is 0.02mm.Punching rate
0.52%, horizontal spacing is that a is 4mm, and longitudinal pitch is that b is 6mm.
Embodiment 2,
Referring to Fig. 5,2 shape of being recessed is hexagon, and hexagon includes three long sides and three short sides, at three, hexagon
The front of long edge position plate 1 to the front of recess 2 is that cambered surface is excessive, the front of plate 1 to 2 bottoms of recess at three short sides of hexagon
Facade is formed at the blocking portion 3 in face, forms micropunch 4 at three below facade outward, and recess 2 is correspondingly formed three and micro- wears at one
Hole 4, the cross sectional shape of micropunch 4 are the semicircle that the plate body back side is directed toward on convex surface.Plate thickness is 0.7mm, and long side length is
6mm, bond length 2mm, 4 width of micropunch are 0.04mm, and 4 height of micropunch is 0.02mm.Punching rate 0.35%, between transverse direction
Away from being 6mm for a, longitudinal pitch is that b is 9mm.
Embodiment 3,
Referring to Fig. 6,2 shape of being recessed is octagon, and octagon includes four long sides and four short sides, at octagon four
The front of long edge position plate plate 1 to the front of recess 2 is that cambered surface is excessive, and plate 1 is positive to recess 2 at four short sides of octagon
Form facade at the blocking portion 3 of bottom surface, form micropunch 4 below facade outward everywhere, at one recess 2 be correspondingly formed four it is micro-
Perforation 4, the cross sectional shape of micropunch 4 are the semicircle that the plate body back side is directed toward on convex surface.Plate 1 is with a thickness of 0.7mm, long side length
4mm, bond length 2mm, 4 width of micropunch are 0.04mm, and 4 height of micropunch is 0.02mm.Punching rate 0.25%, between transverse direction
Away from being 12mm for a, longitudinal pitch is that b is 12mm.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of sound-absorbing honeycomb plate, it includes the cellular board (7) of middle layer, it is characterised in that the upper layer and lower layer of cellular board (7) are multiple
Conjunction has micropunch abatvoix (5), is coated with respectively by one layer between micropunch abatvoix (5) and the top surface up and down of cellular board (7)
The glass-fiber-plate (6) of glue, micropunch abatvoix (5), glass-fiber-plate (6) and cellular board (7) pass through hot pressing composite molding, micropunch suction
Soundboard (5) includes the plate body (1) of horizontal, it is characterised in that the positive rearwardly side of the plate body (1), which is provided with, to be evenly arranged
Recess (2), the recess (2) is provided with micropunch (4) to more sides of its horizontal direction, and micropunch (4) is also formed sound
Sound channel, and be recessed (2) bottom formed blocking portion (3).
2. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the front projection shape of the recess is tool
There is the polygon of even number of sides, symmetrical shape centered on the polygon, the long side and short side that polygon has length different, long side
With short side arranged for interval.
3. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the vickers hardness hv 200-HV500 of plate body.
4. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the thickness 0.5-2mm of plate body.
5. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the aperture of micropunch is 0.02-1mm.
6. a kind of sound-absorbing honeycomb plate according to claim 5, it is characterised in that the aperture of micropunch is 0.02-0.04mm.
7. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the horizontal and vertical spacing of adjacent recess
Range is 2-20mm.
8. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the punching rate range of micropunch is 0.02%-
20%.
9. a kind of sound-absorbing honeycomb plate according to claim 1, it is characterised in that the acoustic absorptivity range of micropunch abatvoix
For NRC0.5-0.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721631742.XU CN208180429U (en) | 2017-11-30 | 2017-11-30 | A kind of sound-absorbing honeycomb plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721631742.XU CN208180429U (en) | 2017-11-30 | 2017-11-30 | A kind of sound-absorbing honeycomb plate |
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| CN208180429U true CN208180429U (en) | 2018-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825788A (en) * | 2017-11-30 | 2018-03-23 | 江苏标榜装饰新材料股份有限公司 | A kind of sound-absorbing honeycomb plate |
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- 2017-11-30 CN CN201721631742.XU patent/CN208180429U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825788A (en) * | 2017-11-30 | 2018-03-23 | 江苏标榜装饰新材料股份有限公司 | A kind of sound-absorbing honeycomb plate |
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