KR101052719B1 - Transparent sound absorption and sound insulation with elastic force - Google Patents

Abstract

The present invention relates to a transparent sound absorbing and soundproofing body having an elastic force that reduces noise and at the same time blocks the noise. The present invention relates to a transparent acrylic synthetic resin board, but has a cobweb-shaped sound inflow passage, a long hole sound inflow passage, and a circular sound inflow passage. Soundproof plate to block / sound-proof sound energy with a plate, a transparent acrylic synthetic resin plate, and a square frame installed to form a sound-absorbing space inside the space between the sound-absorbing plate and the sound-proof plate at regular intervals and each wall of the rectangular frame It is composed of a sound absorbing material provided to the inside of the sound absorbing and extinguished sound energy, the outside noise is elastically absorbed while being introduced into the sound-absorbing space portion through the noise inlet passage formed in the sound absorbing plate, part of the sound insulation by the soundproof plate Pleasantly reducing noise pollution It relates to a transparent sound-absorbing and noise insulating member having an elastic force to allow the composition to bow environment.

Sound-absorbing body, soundproofing body, soundproof wall, transparent soundproof wall

Description

Sound Absorbing and Soundproofing Walls with Flexibility

The present invention relates to a transparent sound absorbing and soundproofing body having an elastic force that reduces noise and at the same time blocks the noise. Particularly, the sound absorbing body and the soundproofing body are made of transparent plates, so that they are spaced apart at regular intervals to form a sound absorbing space and a cobweb shape on the sound absorbing body. It is equipped with a noise inflow path, so that external noise flows into the sound absorption space through the noise inflow path formed in the sound absorbing body and is elastically absorbed. It relates to a transparent sound absorbing and soundproofing body having an elastic force to enable.

In general, sound absorption refers to absorbing sound generated from a sound source and reducing its size, and soundproofing / soundproofing simply blocks the sound generated from the sound source to change the flow of sound, thereby reducing the transmission of sound to the rear of the soundproofing body. Say that.

Conventionally, a sound absorbing body or a sound absorbing body is installed selectively or in parallel in a place where various musical instruments or songs are handled, or where damage is expected due to high speed / roadsides or other noises around a residential area. As the material of the sieve / soundproof body, the sound absorbing and soundproofing were mainly performed by using glass fiber, rock wool or the like, or using a plate or a thin film.

As such a sound absorbing body, a "sound absorbing body" (hereinafter, referred to as "prior art") of Korean Utility Model Registration No. 20-0292648 published by the present applicant is widely known. 112 has a frame 100 having an air layer 111 therein, a central plate 121 formed on the front surface of the air plate 111 and recessed by the air layer 111, and a circumference of the center plate 121 and a periphery thereof Is formed between each of the sound absorbing portion 122 and the curved plate 221 consisting of a plurality of curved plate 221 to form a combination of the radially connected to each other radially through the sound wave to be introduced into the air layer 111. In the sound absorbing body composed of a diaphragm 102 consisting of an opening portion 123 formed so as to be mounted, and a rear sound absorbing plate 103 mounted to the rear of the frame 100 to absorb sound waves passing through the air layer 111,

The inner side surface of the side wall 112, which is an inner circumference of the air layer 111, is provided with a side sound absorbing plate 104 having a porous portion, and at least one absorbing through hole 105 is disposed at an outer front circumference of the curved plate 221. Formed,

In addition, the side wall 112 has a through hole 106 formed therein so as to obtain a sound absorbing effect through the side sound absorbing plate 104 provided inside the other sound absorbing body, and the sound wave inside each corner in front of the sound absorbing body. An inflow through-hole 107 is formed to inflow,

In addition, the length of the support plate 108 is relatively shorter than the width of the side wall is mounted at the center of the rear sound absorbing plate 103 so that the center plate 121 constituting the diaphragm is fixed to the end of the support bar 108, By expanding the volume of the air layer 111 to amplify the spring vibration phenomenon to extinguish the sound waves, and the rear and side sound absorbing plates (103, 104) is composed of a sponge or glass fiber or rock wool to absorb sound waves through the porous portion. .

In the prior art as described above, the sound wave introduced into the diaphragm 102 first causes a vortex phenomenon along the curved plate 221 to increase the sound absorbing area to obtain a sound absorbing effect, and the incoming sound wave shakes finely through the curved plate. As a result of the spring vibration phenomenon in the air layer is made of a structure that consumes the energy of the sound wave to absorb the sound.

In the prior art as described above, the sound-absorbing portion that absorbs sound energy is composed of most non-transparent materials such as sponge, glass fiber, or rock wool, which obstructs the view around the sound absorbing body, making it very frustrating. As the area of the air layer becomes smaller toward the inside, there is a problem that the sound energy introduced into the interior also decreases, so that the sound absorbing and soundproofing effects are somewhat reduced.

In general, sound absorption means to absorb and dissipate sound energy, and there are various types of sound absorbing plates depending on the material and method, but there are no transparent sound absorbing plates having good visibility of the front and rear sides. The transparent plate used in the present invention has only a soundproofing / soundproofing plate that reflects and blocks sound waves, and the conventional transparent sound absorbing plate is also used as a sound absorbing plate by drilling a fine hole in a transparent resin sheet. However, this also has a weak sound absorbing effect is not a sound absorbing plate is expensive and the situation is used only in special places.

     In addition, a transparent sound absorbing plate for the road is attached to a sound absorbing material having a certain width on the inner rim of the transparent plate so that the impact sound waves generated from the front hit the transparent plate, and only a part of the sound absorbing material attached to the inner rim of the frame is absorbed. A sound absorbing plate is used, but this also has a very low sound absorbing effect.

       Therefore, as a method of enhancing the sound absorbing effect, the sound absorbing effect is increased as the area of the side of the sound absorbing material is increased, but there is no practical value as a transparent sound absorbing plate, and the method of increasing the sound absorbing effect to the minimum area is not known yet. to be.

 Accordingly, the present invention has been made to solve the above problems, the sound-absorbing plate and the sound-absorbing plate made of a transparent material such as acrylic plate of synthetic resin spaced at a predetermined interval through the sound-absorbing frame to form a sound-absorbing space portion and the sound into the sound-absorbing space portion It is an object of the present invention to provide a transparent sound absorbing / sound absorbing body which can secure energy so that the sound absorbing and soundproofing can be made by introducing energy, and the front and rear surfaces of the sound absorbing / soundproofing body can be easily seen.

Transparent sound-absorbing and sound-proofing body having an elastic force of the present invention for achieving the above object is made of a transparent acrylic synthetic resin plate but the cobweb-shaped sound inflow passage 11 and the long hole-shaped sound inflow passage 12 and the circular sound inflow passage ( 13) is provided with a sound-absorbing plate 14, a transparent acrylic synthetic resin plate to block the sound energy / sound insulation plate 15, and the sound-absorbing plate 14 and the sound-proof plate 15 at a predetermined interval It is composed of a rectangular frame 17 installed to form a sound absorbing space portion 16 inside the bran and a sound absorbing material 18 provided to the inside of each wall of the rectangular frame 17 to absorb and dissipate sound energy. To be characterized.

As described above, the transparent sound absorbing and soundproofing body having elastic force according to the present invention can maximize the utility by making the sound absorbing and soundproofing parts transparent and made of acrylic plate of synthetic resin so that the sound absorbing / soundproofing body can be easily seen. The sound absorbing efficiency is increased, and sound absorption efficiency is increased by increasing the sound energy inflow area as the cobweb shape is diverted from the center to the outside. By absorbing the sound absorbing plate through the sound energy and elastically vibrating, some sound energy is converted into the vibration energy to obtain the effect of further improving the sound absorption efficiency.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a transparent sound absorbing and sound insulating body having an elastic force according to the present invention, Figure 2 is an exploded perspective view of a transparent sound absorbing and sound insulating body having an elastic force according to the present invention, Figure 3 has an elastic force according to the present invention 4 is an enlarged view of the sound absorbing plate of the transparent sound absorbing and soundproofing body, and FIG. 4 is a rear view of the sound absorbing plate of FIG. 3, and FIG. 5 is a state diagram showing the path of sound energy being introduced into and disappeared into the transparent sound absorbing and soundproofing body having elastic force according to the present invention. 6 is a state diagram showing another embodiment of the sound absorbing plate according to the present invention, FIG. 7 is a perspective view showing a state in which a plurality of transparent sound absorbing and sound absorbing bodies having elastic force according to the present invention are installed in a plurality or multiple layers, and FIG. 8 is a perspective view and a sectional view of a conventional sound absorbing body.

As shown in FIGS. 1 and 2, the transparent sound absorbing and sound absorbing body 10 having elastic force according to the present invention,

Sound absorbing plate (14) which is made of a transparent acrylic synthetic resin board and is provided with a cobweb-shaped sound inflow passage (11), a long hole-shaped sound inflow passage (12), and a circular sound inflow passage (13),

Soundproof plate 15 which is made of a transparent acrylic synthetic resin board to block / sound-proof sound energy,

Square frame 17 is installed so that the sound-absorbing space portion 16 is formed inside the sound-absorbing plate 14 and the sound-proof plate 15 at regular intervals, and

It is composed of a sound absorbing material 18 provided on the inside of each wall of the square frame 17 to absorb and dissipate sound energy.

The sound inflow passage 11 is formed in a cobweb shape, but is formed in a diverging form that gradually opens from the center to the outside, and the start point and the end point are provided with through holes 19 and 20, respectively, and the sound absorption plate 14 has an external impact. The sound inflow passage 12 is formed of a long hole (hole), but a plurality of in series is formed at the edge of the sound-absorbing plate 14 in a line to all the sound energy introduced into the square frame (17) is absorbed by the sound absorbing material 18 provided on the inside to be extinguished, and the sound inflow passage 13 is made of a circular hole, each formed at the corner of the sound absorbing plate 14, all the incoming sound energy The sound absorbing material 18 provided inside the square frame 17 is absorbed and extinguished.

Here, the sound inflow passage 11 formed in the form of a cobweb may have a structure in which one or more dogs are provided, and it is preferable to operate a pair of four dogs. In addition, the long hole-type sound inflow passage 12 and the circular sound inflow passage 13 is not limited to its long hole type or circular shape, respectively.

In addition, the back surface of the sound absorbing plate 14 is provided with a reinforcing support 21 for reinforcing the elastic force of the sound absorbing plate 14 in the cross-sectional center portion in the shape of a cross, and on the outside of the back surface of the sound absorbing plate 14 A sound absorbing material support 22 is provided to support the sound absorbing material 18 so as not to be separated.

In addition, the sound absorbing material support 22 for supporting the sound absorbing material 18 so as not to be separated from the inner surface outer portion of the soundproof plate 12 is provided.

In addition, water discharge grooves 23 are formed in the longitudinal direction in each wall of the rectangular frame 17 so that rain water may flow without stagnation, and the water provided in the bottom wall of the rectangular frame 17. The discharge groove 23 has a structure in which at least one water discharge hole 24 is formed. Therefore, the water flowing along the water discharge groove 23 is discharged and flows out from the outside of the square frame 17 and the water, which is accumulated due to moisture, is discharged to the outside along the water discharge hole 24. It is supposed to be.

And the sound inlet passage 11 of the cobweb shape provided in the sound absorbing plate 14 is made of a shape in which a plurality of single passages (11a) diverging at a predetermined interval, as shown in FIG. Single passage (11a) is formed as a graph line shape as connected to the bending node, but the angle of each node is formed in an obtuse angle formed of a gradually diverging shape, the bending node formed in the single passage (11a) is the innermost It is configured to form linearly (between the lines AB in Fig. 3) gradually increasing from the folding node of to the outermost folding node. It is also a structure that meets all at the center of the cobweb shape by drawing a virtual straight line connecting each of the through hole 19 and the end point of the through hole 20 which are the starting point of each of the single passage (11a) It is. That is, the single passages (11a) have a structure that each diverges at a predetermined interval based on the center of the cobweb shape. Therefore, it is firmly supported by external strong sound energy or wind power, so that durability can be further improved.

However, the single passage 11a is not limited to the shape formed by the obtuse angle, but forms a divergent form while diverging at a right angle (FIG. 6B) or diverges while forming a circular shape without the oblique angle (FIG. 6C). It can be configured to achieve a) and can be configured in a diverging shape to be made in a variety of other shapes other than that.

In addition, reference numeral 25 denotes a bracket fastened at each corner to form the square frame 17.

Transparent sound-absorbing and sound-absorbing body 10 having the elastic force of the present invention configured as described above is configured to fasten the square frame 17 by using the bending portion 25 and then the sound absorbing material on each inner wall of the square frame 17. (18) Fit. Subsequently, when the sound insulation plate 15 is mounted on the rear surface and the sound absorption plate 14 is mounted on the front surface, the sound absorbing material 18 is formed by the sound absorbing material support 22 provided on the rear surface of each plate 14, 15. ) Is firmly supported and completed, and this assembly order can be done first.

As shown in FIG. 7, the transparent sound absorbing and sound insulating body 10 having the elastic force may be connected to a plurality of lines in a line (FIG. 7A) or stacked in a plurality of layers (FIG. 7B) to form a transparent soundproof wall. Do.

Therefore, by installing the transparent sound-absorbing and sound-proof body 10 having the elastic force of the present invention as described above in the general / highway road, the loud sound energy generated from the vehicle is reduced and transmitted when delivered to the apartment or residential area located nearby 5, the loud sound energy in the road or the like enters the sound absorbing space portion 16 through the sound inflow passage 11 formed in the sound absorbing plate 14 from the 'going' direction. do. At this time, when the sound energy passes through the sound inflow passage 11, the sound absorption plate 14 vibrates back and forth elastically, which refers to a phenomenon in which part of the sound energy disappears as the sound energy is converted into vibration energy.

The sound energy introduced into the sound absorbing space 16 is soundproofed by being reflected from the soundproof plate 15, and then the reflected sound energy is transmitted to the respective sound absorbing materials 18 after being hit by the sound absorbing plate 14. As the size is reduced, the reduced sound energy is transmitted in the 'I' direction where the apartment is located.

At this time, the sound energy introduced into the long hole-type sound inflow passage 12 and the circular sound inflow passage 13 is absorbed by the sound absorbing material 18 and reduced.

Sound energy generated from the sound source is absorbed and soundproofed through the sound energy transfer procedure as described above.

In general, the sound absorbing body or sound absorbing body has been tested by an accredited certification body and is utilized by receiving a blocking performance (damping rate) or sound absorbing performance (absorption rate). The transparent sound absorbing and soundproofing body having elasticity according to the present invention (10, hereinafter 'the main body') Technology ') and the present application filed by the present applicant to the Korean Institute of Construction Technology.

① Attenuation rate (damping coefficient, dB) of original technology

Frequency (Hz) Attenuation Coefficient (dB) Frequency (Hz) Attenuation Coefficient (dB) 100 18.1 800 35.3 125 19.2 1000 37.8 160 14.9 1250 39.6 200 17.2 1600 40.0 250 22.4 2000 40.5 315 25.4 2500 41.8 400 27.3 3150 41.0 500 30.1 4000 38.1 630 33.2 5000 40.0

② Sound absorption rate of original technology

Frequency (Hz) Sound absorption coefficient Frequency (Hz) Sound absorption coefficient 100 0.18 800 0.66 125 0.19 1000 0.55 160 0.32 1250 0.48 200 0.46 1600 0.45 250 0.89 2000 0.48 315 0.85 2500 0.40 400 0.88 3150 0.32 500 0.90 4000 0.21 630 0.74 5000 0.04

③ Attenuation rate (damping factor, dB) of the prior art

Frequency (Hz) Attenuation Coefficient (dB) Frequency (Hz) Attenuation Coefficient (dB) 100 22.9 800 35.0 125 23.1 1000 37.1 160 19.5 1250 34.0 200 21.0 1600 42.2 250 25.1 2000 46.2 315 26.5 2500 39.1 400 29.0 3150 40.5 500 32.3 4000 41.1 630 33.8 5000 41.6

④ Sound absorption rate of the prior art

Frequency (Hz) Sound absorption coefficient Frequency (Hz) Sound absorption coefficient 100 - 800 0.62 125 0.17 1000 0.46 160 0.20 1250 0.48 200 0.28 1600 0.58 250 0.35 2000 0.71 315 0.47 2500 0.61 400 0.63 3150 0.58 500 0.64 4000 0.56 630 0.59 5000 -

According to the test report of the accredited certification body, the average attenuation rate of the main frequency (250, 500, 1000, 2000) of the present technology and the prior art is 32.7 dB of the present technology and 35.2 dB of the prior art, both exceeding 30 dB. It can be seen that it shows a good attenuation rate.

However, the average sound absorption rate of the main technology (250, 500, 1000, 2000) of the present technology and the prior art is 70.5% of the present technology and 54% of the prior art, and it can be seen that the sound absorption effect of the present technology is markedly high. .

Therefore, the present technology, although the sound insulation effect does not show much difference from the prior art, it can be seen that the sound absorption effect is superior to the prior art bar, which is the sound absorption efficiency of the present invention is remarkable compared to the prior art It is excellent so that you can get the effect of dramatically reducing the sound energy.

1 is a perspective view of a transparent sound absorbing and sound insulating body having elastic force according to the present invention,

2 is an exploded perspective view of the transparent sound absorbing and sound insulating body having an elastic force according to the present invention;

3 is an enlarged view of the sound absorbing plate of the transparent sound absorbing and sound insulating body having elastic force according to the present invention;

4 is a rear view of the sound absorption plate of FIG.

5 is a state diagram showing a path in which sound energy enters and disappears into the transparent sound absorbing and soundproofing body having elastic force according to the present invention;

Figure 6 is a state diagram showing another embodiment of the sound absorption plate according to the present invention,

7 is a perspective view showing a state in which a plurality of transparent sound absorbing and soundproofing bodies having elastic force according to the present invention are installed and applied in multiple layers,

8 is a perspective view and a cross-sectional view of a conventional sound absorbing body.

<Code Description of Main Parts of Drawing>

10: Transparent sound absorption and soundproofing body 11: Sound flow path of spider house shape

12: Long sound inflow path 13: Round sound inflow path 14: Absorption plate

15: Soundproof plate 16: Sound absorption section 17: Square frame 18: Sound absorbing material

19, 20: through hole 21: reinforcement support 22: sound absorbing material support 23: water discharge groove

24: water discharge hole 25: bending

DESCRIPTION OF SYMBOLS 100 Frame 102 Vibration plate 103 Rear sound absorbing plate 104 Side sound absorbing plate 105 Absorption through hole

106: through-hole 107: inlet through hole 108: length support rod 111: air layer

112: side wall 121: center plate 122: sound absorbing portion 123: open portion 221: bending plate

Claims (6)

delete In the sound-absorbing and sound-absorbing body composed of a single body by separating the sound-absorbing plate to absorb sound energy and the soundproof plate to block the sound energy at a predetermined interval to form an air layer, Sound absorption plate 14 is provided with a cobweb-shaped sound inflow passage 11, the long hole-shaped sound inflow passage 12 and the circular sound inflow passage 13, Soundproof plate 15 for blocking / sound insulation of sound energy, Square frame 17 is installed so that the sound-absorbing space portion 16 is formed inside the sound-absorbing plate 14 and the sound-proof plate 15 at regular intervals, and A sound absorbing material 18 provided inside each wall of the square frame 17 to absorb and dissipate sound energy; The sound inflow passage 11 is in the form of a cobweb, but the sound energy is introduced into the sound-absorbing space portion 16 while being formed in a diverging type that gradually increases from the center to the outside and through holes 19 and 19 respectively. 20) is provided, the sound inlet passage 12 is made of a long hole, but the sound absorbing plate 14 to be absorbed by the sound absorbing material 18 provided in the inside of the square frame 17 to be extinguished Is provided at the edge of the, the sound absorbing plate 14 is provided with a reinforcing support portion 21 in the center of the rear surface to reinforce its support force and the sound absorbing material support 22 is provided to support the sound absorbing material 18 in the outer portion Transparent sound absorption and sound insulation having an elastic force, characterized in that. delete 3. The sound absorbing and sound absorbing body having elasticity according to claim 2, wherein the sound inflow passages (11) formed in the sound absorbing plate (14) are provided in pairs. delete delete

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