CN203701317U - Micro-through-hole double-cavity sound-absorbing board - Google Patents

Micro-through-hole double-cavity sound-absorbing board Download PDF

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Publication number
CN203701317U
CN203701317U CN201320825592.1U CN201320825592U CN203701317U CN 203701317 U CN203701317 U CN 203701317U CN 201320825592 U CN201320825592 U CN 201320825592U CN 203701317 U CN203701317 U CN 203701317U
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CN
China
Prior art keywords
cavity
micro
board
sound
acoustical
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320825592.1U
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Chinese (zh)
Inventor
王少云
冯奕炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN KEDE ACOUSTIC TECHNOLOGY Co Ltd
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SHENZHEN KEDE ACOUSTIC TECHNOLOGY Co Ltd
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Priority to CN201320825592.1U priority Critical patent/CN203701317U/en
Application granted granted Critical
Publication of CN203701317U publication Critical patent/CN203701317U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a micro-through-hole double-cavity sound-absorbing board. The micro-through-hole double-cavity sound-absorbing board is characterized in that the sound-absorbing board is a hollow cavity body; the cavity body is divided into two layers; no filler is filled in the cavity body; a plurality of micro-through-holes are at least formed in the outer surface of the cavity body. Through the structure, the sound absorbing performance of the micro-through-hole double-cavity sound-absorbing board is stale; the sound absorbing board is prevented from generating dust; volatile organic pollutants are stopped; the using requirement of a clean environment is met; moreover, the micro-through-hole double-cavity sound-absorbing board does not age or reduce a sound absorbing effect along with time, does not generate dust, and is clean and safe.

Description

The two cavity acoustical boards of micropunch
Technical field
The utility model relates to a kind of acoustical board, particularly a kind of Micropunch Acoustic Board.
Background technology
Along with the development of urbanization process and the enhancing of resident's environmental consciousness, in society, more and more pay attention to resident's life sound environment quality.And country is for ensureing townsfolk's living environment quality, work out special national standard, its traditional Chinese medical hospital, school, office, house etc. are classified noise-sensitive structure as.Therefore, on the limit of the residential building of arterial highway process, be much all provided with acoustical board, in hospital, be also provided with special sound absorption material.
The conventional sound absorption product in market at present, the sound absorption construction generally adopting is the form of panel parcel sound absorption material.And conventional sound absorption material is as materials such as glass wool, rock wool, polyurethane, in material manufacturing process, conventionally add the organic material assist formations such as epoxy resin, material can volatilize the hazardous substancess such as benzene, formaldehyde, volatile organic matter, and the sound absorption materials such as glass wool easily occur that powder escapes phenomenon especially, air quality is affected.Take hospital as example, control laboratory wherein, ICU, operating room etc., in order to meet the requirement of experiment and health care, indoor environment will meet the requirement of sound environment quality and quality of air environment simultaneously.And the sound absorption material such as glass wool, high molecular polymer that conventional silencing equipment adopts, although there is good sound absorbing capabilities, easily cause dust pollution and, the pollution of VOC etc.
Be similar to hospital, a lot of food service industrys, meticulous process industry etc. need quiet acoustic environment, need again cleaning dustless, how to improve the structure and material of sound absorption product, meeting the noise reduction demand of special industry, is the problem that a worth noise abatement industry research and control are begged for.
Traditional acoustical board structure, can wrap up processing to sound absorption material, but the mode of sealed envelope and material ageing problem can directly cause powder to sew, thereby directly causes powder to pollute to environment.Traditional acoustical board is not suitable for the place that cleaning is had relatively high expectations.
Summary of the invention
Therefore, the technical problems to be solved in the utility model is to provide the two cavity acoustical boards of a kind of micropunch, the two cavity acoustical boards of this micropunch have good acoustic attenuation performance, effectively stop acoustical board and produce dust simultaneously, stop volatile organic matter and pollute, make its instructions for use that meets clean environment, guarantee IAQ (indoor air quality).
In order to obtain good indoor noise environment, be to provide the two cavity acoustical boards of a kind of micropunch another order of the present utility model, the two cavity acoustical boards of this micropunch are without sound absorption filler, dustless, non-volatility organic matter, its pair of cavity structure decayed to acoustic energy by resonant interaction, has good broadband sound absorbing capabilities, and sound absorbing capabilities is good.
Be to provide the two cavity acoustical boards of a kind of micropunch, the two cavity acoustical board quality of this micropunch are light another order of the present utility model, are easy to install, can install flexibly according to different installation sites, and the two cavity acoustical board long service life of this micropunch, be difficult for aging.
For achieving the above object, the technical solution of the utility model is as follows.
The two cavity acoustical boards of a kind of micropunch, it is characterized in that described acoustical board is hollow cavity, cavity divides two-layer, inside cavity non-filler, and at least on external surface, be provided with a plurality of micro-drill(ing)s on cavity, this structure makes sound absorbing capabilities of the present utility model stable, stops acoustical board and produces dust, stops volatile organic matter and pollutes, meet the instructions for use of clean environment, and can be not in time while using not aging or reduce acoustically effective, do not produce dust, sanitary safe.
Described acoustical board, can adopt the materials processings such as galvanized steel plain sheet, corrosion resistant plate, aluminium sheet to make, the processing such as product surface can spray paint, powder spray, and color-variable, has concurrently and eliminates the noise and decoration function.
Further, described acoustical board comprises panel, backboard and sounding board, between panel and sounding board, form two hollow cavities between sounding board and backboard, inner non-filler, form two cavitys, and a plurality of micro-drill(ing)s are all set on described panel and sounding board, connect resonance sound-absorbing principle by two cavitys and eliminate the noise.
Described acoustical board two cavity thickness equate, and the thickness of each hollow cavity is 25~100mm.
The aperture of the micro-drill(ing) of described acoustical board is between 0.1~0.5mm, and hole center to center distance is between 0.5~1.0, and micro-drill(ing) is equilateral triangle and arranges.
Pass through technique scheme, the utility model can be given full play to architectural characteristic and absorb sound to greatest extent, and that is effectively stopped acoustical board and produces powder and air pollution, the acoustic environment of creating high-quality guarantees the air quality of high-quality can provide optional high-quality noise elimination product for the mechanism such as medical treatment, health that cleaning is had relatively high expectations simultaneously.
Meanwhile, the two cavity acoustical board quality of micropunch that the utility model is realized are light, are easy to install, and can join and link up with flexibly according to different installation sites, and the two cavity acoustical board long service life of this micropunch, be difficult for aging.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
For innovative characteristics, technological means, technique effect that the utility model is realized should be readily appreciated that, below in conjunction with accompanying drawing, realization of the present utility model is further elaborated.
Referring to Fig. 1, realization of the present utility model be the two cavity acoustical boards of micropunch, the two cavity acoustical boards of this micropunch comprise three major parts: panel 1, backboard 4 and sounding board 3.Wherein, between panel 1 and sounding board 3, form two hollow cavities 2 between sounding board 3 and backboard 4, the inside non-filler of these two hollow cavities 2, form the structure of two cavitys, and a plurality of micropunch (in figure, tiny stain just represents micropunch) are all set on panel 1 and sounding board 3, connect resonance sound-absorbing principle by two cavitys and eliminate the noise.
In the time making, panel 1 adopts galvanized steel plain sheet Bending Processing, and surface has the micropunch in 0.1mm aperture; Sounding board 3 adopts galvanized steel plain sheet Bending Processing, and surface has the micropunch in 0.2mm aperture, and sounding board 3 has edge flange and panel 1 to adopt spot welding or the iron rivet connected mode of loosing core is fixed; Backboard 4 adopts galvanized steel plain sheet Bending Processing, does not bore a hole, and the edge flange of its bending and panel 1 adopt spot welding or the iron rivet connected mode of loosing core is fixed; Be assembled into two Resonance Structure, utilize cavity resonance to oppose and absorb sound, without packing material.
And the double-layer cavity structure that acoustical board forms is generally rectangular block structure, make like this good stability of acoustical board, can resistance to certain impact; The material adopting is zinc-plated sheet material, has the features such as antirust, corrosion-resistant, not aging.
The zinc-plated microperforated panel adopting on the panel of the utility model acoustical board, the aperture of micropunch is Ф 0.1, and pitch of holes is 0.95mm, and equilateral triangle is arranged, and perforated percentage is 1%; Sounding board in the middle of cavity is zinc-plated microperforated panel, and the aperture of micropunch is Ф 0.2mm, and pitch of holes is 1.35mm, and equilateral triangle is arranged, and perforated percentage is 2%.
By said structure, in plate of the present utility model, the double-deck resonating cativty of composition, does not fill any sound absorption material, thereby by the continuous resonance of double-layer cavity, acoustic energy is decayed; Double-deck resonant structure has good absorbent properties for intermediate frequency and high frequency sound wave.
And, the noise elimination mode of of the present utility model pair of cavity resonance, solve the problem of the aging dust of sound absorption material of conventional noise elimination product existence, the clean requirement of the product improving, also make acoustical behavior of the present utility model not be subject to the restriction of service time, do not produce sound absorption material aging phenomenon, stable performance.
In a word, the utility model acoustical behavior is good, simple in structure, easy for installation, can be installed on the interior space of medical treatment, health industry, can be installed on toilet's finishing later stage.
The above, the embodiment only enumerating for the utility model, what can not limit that the utility model implements with this comprises scope.All equalizations of doing according to the utility model claim change and modify, and all should belong in the utility model patent covering scope.

Claims (3)

1. the two cavity acoustical boards of micropunch, is characterized in that described acoustical board is hollow cavity, and cavity divides two-layer, inside cavity non-filler, and at least on external surface, be provided with a plurality of micro-drill(ing)s on cavity; Described acoustical board comprises panel, backboard and sounding board, and between panel and sounding board, form two hollow cavities between sounding board and backboard, inner non-filler, forms two cavitys, and a plurality of micro-drill(ing)s are all set on described panel and sounding board.
2. the two cavity acoustical boards of micropunch as claimed in claim 1, it is characterized in that described acoustical board two cavity thickness equate, and the thickness of each hollow cavity are 25 ~ 100mm.
3. the two cavity acoustical boards of micropunch as claimed in claim 1, is characterized in that the aperture of micro-drill(ing) of described acoustical board is between 0.1 ~ 0.5mm, and hole center to center distance is between 0.5 ~ 1.0 mm, and micro-drill(ing) is equilateral triangle and arranges.
CN201320825592.1U 2013-12-13 2013-12-13 Micro-through-hole double-cavity sound-absorbing board Expired - Fee Related CN203701317U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320825592.1U CN203701317U (en) 2013-12-13 2013-12-13 Micro-through-hole double-cavity sound-absorbing board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320825592.1U CN203701317U (en) 2013-12-13 2013-12-13 Micro-through-hole double-cavity sound-absorbing board

Publications (1)

Publication Number Publication Date
CN203701317U true CN203701317U (en) 2014-07-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106121073A (en) * 2016-08-26 2016-11-16 四川三元环境治理股份有限公司 Modular microfluidic perforated acoustic board
CN106205588A (en) * 2016-08-26 2016-12-07 四川三元环境治理股份有限公司 Multilamellar perforated microstructure noise elimination flow deflector
CN108867986A (en) * 2018-07-02 2018-11-23 长春理工大学 Combined frequency-change acoustic tile
CN110230276A (en) * 2019-07-17 2019-09-13 盈普声学(惠州)有限公司 A kind of transparent ventilating noise silencer
CN111622367A (en) * 2020-06-11 2020-09-04 河南理工大学 Noise reduction device for sound absorption of recording studio

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106121073A (en) * 2016-08-26 2016-11-16 四川三元环境治理股份有限公司 Modular microfluidic perforated acoustic board
CN106205588A (en) * 2016-08-26 2016-12-07 四川三元环境治理股份有限公司 Multilamellar perforated microstructure noise elimination flow deflector
CN106205588B (en) * 2016-08-26 2022-10-28 四川三元环境治理股份有限公司 Multilayer micro-perforated structure noise elimination flow deflector
CN108867986A (en) * 2018-07-02 2018-11-23 长春理工大学 Combined frequency-change acoustic tile
CN110230276A (en) * 2019-07-17 2019-09-13 盈普声学(惠州)有限公司 A kind of transparent ventilating noise silencer
CN111622367A (en) * 2020-06-11 2020-09-04 河南理工大学 Noise reduction device for sound absorption of recording studio
CN111622367B (en) * 2020-06-11 2021-09-07 河南理工大学 Noise reduction device for sound absorption of recording studio

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140709

Termination date: 20201213

CF01 Termination of patent right due to non-payment of annual fee