CN2226095Y - Resonant-iris abatvoix - Google Patents

Abstract

The utility model relates to a novel resonant acoustic panel which is composed of honeycomb panels arranged between a punching panel and a back panel, and a resonant type sound absorption plastic film which is fully distributed with fine holes. The sound wave continuously penetrates through two layers of resonant type sound absorption films, and then penetrates through two layers of honeycomb panels having rectifying action. A stickiness function is generated at the edges of the fine holes arranged on the sound absorption plastic film by the sound wave, the sound pressure is decayed, and the sound absorption effect is provided. The utility model has high sound absorption coefficient, and simultaneously can be applied to the noise occasions with various different frequency ranges to exert the significant noise-absorbing effect through the change of the thickness ratio of the two layers of honeycomb panels arranged at the interior of the resonant acoustic panel. The pattern design of the stereo punching panel has an aesthetic sense and a utility function.

Description

The resonating membrane abatvoix

The utility model relates to a kind of abatvoix, is specifically related to a kind of made novel abatvoix of resonant sound-absorbing plastic film of the honeycomb plate being installed between punching panel and backplate and being covered with pore.

In the past, the structure of general abatvoix is made nothing more than porous materials such as using simple glass fiber, the fine rock wool in ore deposit, aluminium matter fiber, and it is as follows that existing three kinds of abatvoixs commonly used are at this point made a comparative descriptions:

1. glass fiber: though price is more cheap, but it can absorb airborne moisture content when wet environment uses, after long-term the use, water content in the fiber can make sound-absorbing effect reduce significantly, this fiber is easily become airborne floating dust by weathering embrittlement simultaneously, causes second environmental pollution.

2. the fine rock wool in ore deposit: generally adopt asbestos in the majority, but its moisture resistance of this fiber is poorer than glass fiber, after absorbing airborne moisture content, can reduce sound-absorbing effect by a larger margin, simultaneously the also easy-weathering embrittlement of this fiber.

3. aluminium matter fiber: though it can solve moisture content and floating dust problem, price is high, generally all uses at special occasions, can't be commonly used.

At the shortcoming of above-mentioned each abatvoix, the purpose of this utility model is to provide a kind of secondary pollution that do not have, and is cheap, can keep the abatvoix of high sound-absorbing, soundproof effect lastingly.

For achieving the above object, the utility model provides a kind of and the honeycomb plate is installed between punching panel and backplate and is covered with the novel abatvoix that the resonant sound-absorbing plastic film of pore is constituted.Its characteristics are to have used acoustics highly acoustical technology, with simple honeycomb plate and the combination of resonant absorptive membrane, the sound-absorbing structures that just can allow noise disappear in a large number.Not only have high acoustic absorptivity, more can borrow simultaneously the variation of thickness proportion between its inner two-layer honeycomb plate, under the noise occasion of various different frequencies, all can bring into play the most effective sound-absorbing effect, this specific character be traditional abatvoix inaccessible.

For architectural feature of the present utility model is had further understanding, in conjunction with the accompanying drawings it is described as follows.Wherein, accompanying drawing is:

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is the elevation of punched-plate of the present utility model;

Fig. 3 is the vertical view of punched-plate of the present utility model.

See also Fig. 1, Fig. 2, Fig. 3, abatvoix of the present utility model is mainly combined by four spare parts, the front reaches 15-40% punched-plate 10 for percent opening, punched-plate 10 inside then are two-layer honeycomb sound-absorbing structure 20, and the ratio of the certain and two-layer honeycomb thickness of its gross thickness can be the variation of combinations such as to seven or two to six or three to five.At punched-plate 10 and 20 of two-layer honeycomb sound-absorbing structures a resonant absorptive membrane 30 is housed all, on these absorptive membrane 30 surfaces, be furnished with pore, above-mentioned honeycomb sound-absorbing structure is a kind of hexagonal honeycomb core hole, below the about 13mm in aperture, stamen hole, material is unrestricted, can be materials such as papery, plastic cement, metal, and the stamen hole shape is also unrestricted, generally with approximate honeycomb shapes such as quadrangle, pentagon, hexagon all can, innermost layer is then by the backplate 40 that why protects inner sound-absorbing structure.

The utility model major advantage is:

1. special sound-absorbing structure:

The utility model is reached four zero level parts such as 15-40% punching panel, honeycomb boards, the resonant sound-absorbing plastic film that is covered with pore, backplate and is consisted of by percent opening, it is the special sound-absorbing structure of a kind of two-layer, it not only breaks through the nest mortar of traditional commercially available abatvoix design fully, and adopt very simple structure and inexpensive material, so more economical and practical.

2. transformable sound-absorbing structure:

The two-layer honeycomb plate that changes the proportionate relationship of its thickness is arranged in the sound-absorbing structure of the present utility model, absorb the noise of various different frequency ranges, one to seven honeycomb plate thickness combination, be applicable to the acoustic absorptivity that improves low frequency region, three to five honeycomb plate thickness combination, then be applicable to the acoustic absorptivity that improves the intermediate frequency zone, also have the honeycomb plate thickness ratio of other proper proportions can be for using alternately certainly, this specific character be that general abatvoix institute is inaccessible.

3. high acoustic absorptivity: (seeing attached list)

The utility model is to utilize to be covered with the resonant sound-absorbing vibration of membrane of pore and the rectified action of honeycomb plate, impel the increase sound absorption qualities, the utility model is tested according to CNSA3165 reverb chamber method acoustic absorptivity, when 125Hz-4000Hz frequency, acoustic absorptivity is the high abatvoix of an acoustic absorptivity on average up to more than 70 percent.

4. fine definition:

The utility model utilizes the honeycomb plate sound wave can be given rectification in sound-absorbing structure, can impel the definition of sound to improve, and can still keep quite high definition by enable voice after the transmission of long distance.

5. there is not the secondary pollution problem:

The material that adopts can never produce the fines dust fall in the utility model, the abatvoix that does not have materials such as the fine rock wool in similar picture glass fiber or ore deposit, peeling off through the long-term binder that uses the fiber in its tissue of back to combine with its institute, cause fiber to become airborne suspension and sucked health risk by human body.

6. punching panel pattern variation:

Punching panel of the present utility model can the person of being used hobby and habit, provide diversified selection for punching panel pattern, design two frame groove patterns especially, outward appearance is generous and succinct.

7. punching panel surfacing variation:

Punching panel of the present utility model can the person of being used hobby and habit, surfacing provides texture diversified selection for the punching panel, as plants processing such as hair, patch and make its outward appearance have the aesthetic feeling that color is active, texture is graceful.

8. specification standardization, easy construction:

The utility model specification can be suitable for the light steelframe of commercially available any standard specification, so can be set up in easily on the ceiling or wall of building, construction is very convenient.Subordinate list one the utility model is as follows according to CNSA3165 reverb chamber method acoustic absorptivity test result: 1. temperature: 27.1 ℃ of 2. humidity: the acoustic absorptivity of 60%3. each interval:

1/3 octave centre frequency (Hz)	125	160	200	250	315	400	500	630
									Acoustic absorptivity	0.27	0.36	0.29	0.54	0.68	0.77	1.10	1.13

1/3 octave centre frequency (Hz)	800	1K	1.25	1.6K	2K	2.5K	3.15	4K
									Acoustic absorptivity	1.06	0.97	0.88	0.82	0.81	0.92	0.76	0.66

Claims (3)

1. resonating membrane abatvoix, it comprises: the punching panel that the metal of surperficial percent opening 15-40% or plastic cement material are made; As the box-like backplate of protection sound-absorbing structure body, this backplate material also can be metal or plastic cement material at its back side; Two-layer honeycomb plate and the two-layer resonant sound-absorbing plastic film that is covered with pore that piles up alternately is installed between punching panel and backplate, it is characterized in that the adjustment that two-layer its thickness proportion of honeycomb plate can be done the thickness combination of one to seven, two to six, three to five different proportions changes.

2. resonating membrane abatvoix as claimed in claim 1 is characterized in that, its outward appearance type body of described punching panel adopts two frame groove structures.

3. resonating membrane abatvoix as claimed in claim 1, it is characterized in that, described honeycomb plate is formed by the stamen hole of the approximate honeycomb shape of quadrangle, pentagon, hexagon or hexagon, this aperture, honeycomb stamen hole is below 13mm, and the stamen hole uses material to can be papery, metal, plastic cement unlike material.

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