CN201406773Y

CN201406773Y - Sound-absorbing board

Info

Publication number: CN201406773Y
Application number: CN2009201379490U
Authority: CN
Inventors: 吴平
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-24
Filing date: 2009-04-24
Publication date: 2010-02-17
Anticipated expiration: 2019-04-24

Abstract

The utility model relates to a construction and decoration material, in particular to a sound-absorbing board. The sound-absorbing board comprises a baseplate; a plurality of slots are formed on one side of the baseplate; a plurality of sound-absorbing holes opposite to the slots are formed on the other side of the baseplate; the sound-absorbing holes are communicated with the slots; and the sound-absorbing holes, the slots and the baseplate are integrally molded. When the sound-absorbing board is used, the side on which the slots are formed is arranged on the outer side while the side on which the sound-absorbing holes are formed is arranged on the inner side; sound enters the sound-absorbing holes form the slots; and the sound-absorbing effect is excellent. Moreover, as the slots are formed on the outer side, the utility model has good decorative effect and provides the sound-absorbing board with good sound absorption and decoration effects; and foremost, the slots, the sound-absorbing holes and the baseplate are integrally molded, so that the production technology is simpler, and the manufacturing cost is lower.

Description

A kind of abatvoix

Technical field

The utility model relates to a kind of building and ornament materials, is meant a kind of abatvoix especially.

Background technology

In the prior art, in the demanding place of acoustics, such as occasions such as cinema, KTV, traditional way is to carry out sound-absorbing or sound insulation with the glass wool goods, and its shortcoming is that sound-absorbing is not ideal enough, and decorative effect is also relatively poor.

For this reason, people have proposed multiple solution.

CN2713035Y discloses a kind of " abatvoix with hole slot ", is a rectangle sheet material, and its front longitudinally is provided with a plurality of grooves and a plurality of fins, the alternate setting of groove and fin; The back side of rectangle sheet material longitudinally is provided with a plurality of shrinkage pools.The bottom of rectangle sheet material front longitudinal fluting offers vertical slit, and the bottom of slit is communicated with the shrinkage pool at the rectangle sheet material back side.Groove width and flute profile and the back side that changes rectangle sheet material longitudinally diameter and the degree of depth of shrinkage pool of this patent by changing positive a plurality of grooves of rectangle sheet material, can change sound-absorbing effect to a certain extent to different frequency bands, but it is very big to the sound-absorbing effect difference of different frequency bands with a kind of sheet material, and is also impracticable in actual the use.

CN2746023Y discloses a kind of abatvoix, formed by surface of steel plate layer and damping material inner cord bonding, the punching steel plate dashes equally distributed sound-absorbing aperture, and the sound absorber flitch can be the face glass that is wrapped with the glass cotton, its back side has aluminium foil again, and each layer is bonded to one successively.Though this patent has certain sound-absorbing effect, its sound-absorbing effect is unsatisfactory, and adopts surface of steel plate layer cost also higher.

CN2878557Y discloses a kind of " decoration acoustic panel ", and it comprises a substrate, in substrate front side guide groove is set, this guide groove bottom surface is wavy relief, this relief is provided with a plurality of perforation, and perforation communicates with the groove of substrate back, and the guide groove width is greater than groove width.This decoration acoustic panel manufacturing is comparatively complicated, and manufacturing cost is higher, and its decoration function is greater than sound absorption, and sound-absorbing effect is not good.

The utility model content

Main purpose of the present utility model is to overcome the shortcoming of prior art, and all abatvoixs preferably of a kind of sound-absorbing, decorative effect are provided.

The utility model adopts following technical scheme:

A kind of abatvoix, it comprises a substrate, and a side of this substrate forms many rule seams, forms a plurality of sound-absorption hole over against this opposite side that is sewn on this substrate, and this sound-absorption hole is connected with this seam.

According to a better embodiment of the present utility model, described seam, described sound-absorption hole and described substrate are one-body molded.

According to a better embodiment of the present utility model, described substrate is pasted with one deck baffle blanket in the side that it is provided with sound-absorption hole.

According to a better embodiment of the present utility model, described substrate is a glass magnesium plate.

According to a better embodiment of the present utility model, an end of described substrate is provided with the projection of pegging graft, and the other end is provided with the depression of pegging graft.

A kind of abatvoix of the present utility model in use, its side that is provided with the bar seam is positioned at the outside, a side that is provided with sound-absorption hole is positioned at the inboard, and sound enters the sound-absorption hole excellent sound absorbing from the bar seam, and the outside is provided with the bar seam, have good decoration effect again, be a kind of sound-absorbing, decorate all good abatvoixs, the most important thing is that bar seam, sound-absorption hole and substrate are one-body molded, production technology is comparatively simple, and cost of production is lower.

Description of drawings

Fig. 1 is the perspective view one of the utility model specific embodiment one;

Fig. 2 is the perspective view two of the utility model specific embodiment one;

Fig. 3 is the sectional structure schematic diagram of the utility model specific embodiment one;

Fig. 4 is the sectional structure schematic diagram of the utility model specific embodiment two.

The specific embodiment

Below the utility model will be further described by the specific embodiment.

The specific embodiment one

With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of abatvoix of the present utility model, it comprises a substrate 10, a side of this substrate 10 forms many rule seams 11, form a plurality of sound-absorption hole 12 over against these seam 11 opposite sides at this substrate 10, this sound-absorption hole 12 is connected with this seam 11.

In the utility model, bar seam 11, sound-absorption hole 12 and substrate 10 are one-body molded.Substrate 10 can be glass magnesium plate.

One end of substrate 10 is provided with the projection 13 of pegging graft, and the other end is provided with the depression 14 of pegging graft, and the installation of convenient abatvoix of the present utility model makes mounting process become very simple.

A kind of abatvoix of the present utility model in use, its side that is provided with bar seam 11 is positioned at the outside, a side that is provided with sound-absorption hole 12 is positioned at the inboard, sound enters the sound-absorption hole 12 from bar seam 11, excellent sound absorbing, and the outside is provided with bar seam 11, has good decoration effect again, is all good abatvoixs of a kind of sound-absorbing, decoration.

The abatvoix that the utility model is made is delivered to South China Science ﹠ Engineering University's architecture acoustical laboratory reverberation room and is carried out acoustical testing, and the reverberation room volume is 200m ³, 20 ℃ of room temperatures, relative humidity 70%, test test result such as table one according to GB " Reverberation room method is measured material sound absorption coefficient (GBJ47-83) ":

Table one

Frequency Hz	Sound absorption coefficient α
Frequency Hz	Sound absorption coefficient α	100	0.21
125	0.34	100	0.21
125	0.34	160	0.38
200	0.58	160	0.38
200	0.58	250	0.88
315	1.04	250	0.88
315	1.04	400	0.96
500	0.97	400	0.96
500	0.97	630	0.92
800	0.86	630	0.92
800	0.86	1K	0.80
1.25K	0.76	1K	0.80
1.25K	0.76	1.6K	0.71
2K	0.70	1.6K	0.71
2K	0.70	2.5K	0.64
3.15K	0.59	2.5K	0.64
3.15K	0.59	4K	0.65

5K

0.74

As can be seen from the above table, abatvoix excellent sound absorbing of the present utility model.

The specific embodiment two

With reference to Fig. 4, a kind of abatvoix of the present utility model, it comprises a substrate 10, and a side of this substrate 10 forms many rule seams 11, forms a plurality of sound-absorption hole 12 over against these seam 11 opposite sides at this substrate 10, and this sound-absorption hole 12 is connected with this seam 11.

Substrate 10 is pasted with one deck baffle blanket 20 in the side that it is provided with sound-absorption hole 12.

The abatvoix that the utility model is made is delivered to South China Science ﹠ Engineering University's architecture acoustical laboratory reverberation room and is carried out acoustical testing, and the reverberation room volume is 200m ³, 20 ℃ of room temperatures, relative humidity 70%, test test result such as table two according to GB " Reverberation room method is measured material sound absorption coefficient (GBJ47-83) ":

Table two

Frequency Hz	Sound absorption coefficient α
Frequency Hz	Sound absorption coefficient α	100	0.22
125	0.35	100	0.22
125	0.35	160	0.42
200	0.65	160	0.42
200	0.65	250	0.89
315	1.03	250	0.89
315	1.03	400	0.99
500	0.98	400	0.99
500	0.98	630	0.92
800	0.89	630	0.92

1K	0.85
1K	0.85	1.25K	0.81
1.6K	0.78	1.25K	0.81
1.6K	0.78	2K	0.75
2.5K	0.70	2K	0.75
2.5K	0.70	3.15K	0.64
4K	0.70	3.15K	0.64
4K	0.70	5K	0.77

Above-mentioned only is two specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims

1, a kind of abatvoix, it comprises a substrate, it is characterized in that: a side of this substrate forms many rule seams, forms a plurality of sound-absorption hole over against this opposite side that is sewn on this substrate, and this sound-absorption hole is connected with this seam.

2, a kind of abatvoix as claimed in claim 1 is characterized in that: described seam, described sound-absorption hole and described substrate are one-body molded.

3, a kind of abatvoix as claimed in claim 1 is characterized in that: described substrate is pasted with one deck baffle blanket in the side that it is provided with sound-absorption hole.

4, a kind of abatvoix as claimed in claim 1 is characterized in that: described substrate is a glass magnesium plate.

5, a kind of abatvoix as claimed in claim 1 is characterized in that: an end of described substrate is provided with the projection of pegging graft, and the other end is provided with the depression of pegging graft.