WO2018235974A1

WO2018235974A1 - Air-passing soundproof panel and air-passing soundproof wall using the same

Info

Publication number: WO2018235974A1
Application number: PCT/KR2017/006614
Authority: WO
Inventors: Yeoung Cheol Cho; In Seok Bang; Yong Soo Ji; Chan Young Lee; Joon Ho Baek; Jae Hyun Lim
Original assignee: Ketech Co., Ltd.
Priority date: 2017-06-22
Filing date: 2017-06-22
Publication date: 2018-12-27

Abstract

A soundproof panel is disclosed, which provides wind passage without boring holes on front and rear plates, obtains a opening ratio sufficient for reducing wind pressure, and is excellent in discharging water. The soundproof panel includes an exterior frame enclosing side surfaces, a front plate installed on a front portion of the exterior frame and formed with a plurality of entrances and exits of wind passages, a rear plate installed on a rear portion of the exterior frame and formed with entrances and exits of the wind passages, and a partition frame installed between the front plate and the rear plate for providing a space for forming the wind passages between the front plate and the rear plate, dividing an internal space between the front plate and the rear plate to top and bottom and right and left, and forming a resonance chamber neighboring the wind passages.

Description

AIR-PASSING SOUNDPROOF PANEL AND AIR-PASSING SOUNDPROOF WALL USING THE SAME

The invention relates to improvements of air-passing soundproof panel and soundproof wall for reducing wind pressure, and more specifically to Air-passing soundproof panel and Air-passing soundproof wall using the same providing wind passages for passing air or wind.

In general, a soundproof wall is installed along a road or a railroad, which is for reducing transferring noise generated from the road or railroad to its neighboring area. Conventional soundproof walls were made in a form through which wind could not pass considering blocking of noise only. Such conventional soundproof walls block flowing of air as well as noise, causing ecological disconnection and affecting badly the protection of nature and environment. And since the entire area of the soundproof wall receives the resistance against the wind, the scale of the foundation of soundproof wall became too massive at the time of construction of the soundproof wall with the maximum wind speed at the site considered, so that the cost per unit length for building of the soundproof wall gets too high.

In order to solve the problems of conventional soundproof walls, the soundproof walls with a reduced wind resistance have been developed and used.

The prior arts regarding soundproof wall with reduced wind resistance is disclosed in the publication of the registered Korean patent number 10-1422113 (Inventor: Sang-hoon Kim, referred below as "previously-registered invention"). The previously-registered invention discloses a soundproof wall made by the process of making air-passing passage through a window or wall, installing a resonance chamber around the air-passing passage, and dividing the air-passing passage and the resonance chamber with porous sound-absorbing material, so that in the process of passing through the air-passing passage, the sound is absorbed in and blocked by the resonance chamber but the air pass through.

The above previously-registered invention provides various positive effects such as achieving both air-passing and soundproof, reducing wind pressure, solving environmental problems due to biological blocking, etc., but since holes on front plate and rear plate for forming wind passages, it is hard to manufacture and wastes material a lot.

Also, since a resonance chamber with one resonance room must be made in the previously-registered inventions, it takes a lot of time and manpower for manufacturing them, and when constructing a soundproof wall, the members forming the outside of the resonance room are made of double and resonance rooms must be piled one by one to form the soundproof wall, it takes long time to build the soundproof wall.

Also, the previously-registered invention provides various positive effects such as achieving both air-passing and soundproof, reducing wind pressure, solving environmental problems due to biological blocking, etc., but there is a limit to the reduction of wind pressure. In order to reduce wind pressure a lot, the diameter of the air-passing passage must be formed relatively large, but if the diameter of the air-passing passage gets too large the strength of soundproof wall is decreased and the effect of noise blocking is also decreased, and if the diameter of air-passing passage gets small the soundproof performance is improved, but a problem of increased wind pressure occurs.

Various types of soundproof panels with reduced wind pressure had been developed before the previously-registered invention, and other soundproof panels with reduced wind pressure have been developed afterwards, but those soundproof panels also have the same problems as in the previously-registered invention.

Also, since in the conventional air-passing soundproof panels holes must be bored on the front plate, the rear plate, and the inner plate installed between the two, it is hard to manufacture and the loss of material is serious.

Also, in the conventional air-passing soundproof panels there are problems that water introduced into the inside through the wind passages won't be emitted and the moisture is hard to be dried.

An object of the invention is to provide a soundproof panel forming wind passages without boring holes on the front plate and the rear plate, and a soundproof wall using the same.

Another object of the invention is to provide a soundproof panel, which has a simple structure so that it is easy to make and can achieve a good rate of opening for reducing wind pressure, and a soundproof wall using the same.

Still another object of the invention is to provide a soundproof panel that can be designed and manufactured by easily adjusting the size of wind passage for the reduction of wind pressure, the volume of resonance chamber, and the size of resonance hole, and a soundproof wall using the same.

Still another object of the invention is to provide a soundproof panel, in which emitting of water can be obtained for itself and the moisture in the wind passage and on the floor of the resonance chamber can be dried quickly, and a soundproof wall using the same.

An air-passing soundproof panel is provided, which comprises: an exterior frame enclosing side surfaces; a front plate installed on a front portion of the exterior frame and formed with a plurality of entrances or exits of wind passages; a rear plate installed on a rear portion of the exterior frame and formed with entrances or exits of the wind passages; and a partition frame installed between the front plate and the rear plate for providing a space for forming the wind passages between the front plate and the rear plate, dividing an internal space between the front plate and the rear plate to top and bottom and right and left, and forming a resonance chamber neighboring the wind passages.

Preferably, the front plate may be formed by disposing with intervals front pieces separated for forming the wind passage, the rear plate may be formed by disposing with intervals rear pieces separated for forming the wind passage so as to correspond to the front plate.

Preferably, the front pieces and the rear pieces may form a shape of rectangle, and the wind passage along a same line is disposed consecutively top to bottom or left to right except for a thickness portion of the partition frame, so that the wind passage contacts a surface of the forming a floor thereof.

Preferably, in the wind passage may be formed a resonance hole connected to the resonance chamber disposed at a neighborhood of the wind passage.

Preferably, the resonance hole may be formed with slit-type resonance holes by separation plates installed with intervals in the partition frame.

Preferably, the front pieces and the rear pieces may be formed with a shape of rectangle, wherein the wind passage is formed with slit-type wind passage, and the wind passage along a same line may be disposed consecutively top to bottom or left to right except for a thickness portion of the partition frame, so that the wind passage contacts a surface of the partition frame forming a floor thereof.

Preferably, at least one of the front plate and the rear plate may comprise a convex portion formed bulging outwards from both sides of the wind passage, so as to reduce a resistance or a drag force against wind blowing in a direction facing the front plate or the rear plate.

Preferably, at least one of the front pieces and the rear pieces may comprise a convex portion formed bulging outwards.

Preferably, the partition frame may comprise two or more divided partition frames divided into at least two pieces and disposed in a front and in a rear, and wherein the air-passing soundproof panel includes an inner plate divided and disposed with an interval correspondingly to the front plate so as to form the wind passage between the neighboring divided partition frames and forming two or more divided resonance chambers disposed in a front and in a rear by dividing an inner space between the front plate and the rear plate.

Preferably, the air-passing soundproof panel may further comprise a separating plate, which is installed in the partition frame and divides from right to left at least one of the divided resonance chambers disposed in the front and rear.

Preferably, the front plate and/or the rear plate may be transparent.

A soundproof wall comprises the air-passing soundproof panel according to the present invention.

According to the present invention, since the soundproof panel can be made without boring holes at the front and rear plates, it is easy to make the soundproof panel, making the productivity excellent.

According to the present invention, since the structure of soundproof panel is not complicated, it is easy to make, to obtain a sufficient opening ratio for reducing the wind pressure, to make it in various structures according to the goal frequency to block.

According to the present invention, the opening ratio can be adjusted by installing and adjusting the intervals between the divided plates of the front and the rear plate, and it is easy to make by adjusting the sizes of chambers and the resonance holes.

According to the present invention, since each of wind passages is formed so as to contact the surface of the partition frame forming the floor thereof, the discharging of rain water introduced into the floor of the wind passage is achieved for itself, and since the floor of the wind passage is exposed to outside without any step portions, the moisture remaining on the floor of the wind passage can be dried rapidly due to speeding up of the wind as passing the wind passage.

Also, according to the present invention, since the floor of the wind passage and the floor of the resonance chamber are connected without a step portion, the discharging of rain water introduced into the resonance chamber is achieved for itself, and since the air pressure in the wind passage is decreased by the wind speeding up while passing through the wind passage, the water in the resonance chamber is discharged to outside via the wind passage, the discharging of water in the resonance chamber is achieved automatically and the moisture remaining on the floor of the resonance chamber can be dried rapidly.

The soundproof panel and soundproof wall according to the invention having convex portions on the surface provide a soundproof panel having excellent wind pressure reduction considering the fact of having planar surfaces.

According to the present invention, a soundproof panel and a soundproof wall using the same can be provided, which has wind pressure reduction and soundproof effect according to required situations by adjusting the degree of protruding of the convex portions and the size of the wind passage so as to make it easy to design.

According to the present invention, since the wind blown toward the convex portions is guided to the wind passage, the wind pressure can be reduced a lot, and since the speed of wind passing through the wind passage gets faster than that in the case of not having the convex portion, the moisture is dried quickly, and debris introduced into the wind passage and the resonance chamber is also discharged well.

According to the present invention, it provides a soundproof panel and a soundproof wall using the same, which are excellent in reducing of wind pressure and blocking of noise through resonance.

Fig. 1 is a perspective view showing an example of air-passing soundproof panel according to the invention,

Fig. 2 is a perspective view showing an air-passing soundproof panel with front plate disassembled according to the invention,

Fig. 3 is a perspective view showing an air-passing soundproof panel with exterior frame disassembled according to the invention,

Fig. 4 is an exploded perspective view showing a soundproof panel according to the invention,

Fig. 5 is a perspective view showing a case of using transparent material for a front plate, a rear plate, and an exterior frame in the soundproof panel of Fig. 1,

Fig. 6 shows another example of an air-passing soundproof panel according to the invention, (a) a plan cross-sectional view, and (b) a cross-sectional view along I-I in Fig. 6(a),

Fig. 7 is a plan cross-sectional view of variation of the air-passing soundproof panel of Fig. 6 with the size the resonance chamber increased,

Fig. 8 shows still another example of an air-passing soundproof panel according to the invention, (a) a plan cross-sectional view, and (b) a cross-sectional view along J-J in Fig. 8(a),

Fig. 9 is a perspective view showing still another example of a soundproof panel according to the invention,

Fig. 10 is a perspective view showing a soundproof panel having convex portions on surfaces according to another embodiment of the invention,

Fig. 11 is an exploded perspective view showing a soundproof panel according to the invention,

Figs. 12 and 13 are a partially cut-out perspective view showing soundproof panels with convex portions on surfaces according to still another embodiments of the invention.

Below, preferable embodiments of the invention are going to be described in detail referring to the attached drawings. Fig. 1 is a perspective view showing an example of air-passing soundproof panel according to the invention, Fig. 2 is a perspective view showing an air-passing soundproof panel with front plate disassembled according to the invention, Fig. 3 is a perspective view showing an air-passing soundproof panel with exterior frame disassembled according to the invention, Fig. 4 is an exploded perspective view showing a soundproof panel according to the invention, and Fig. 5 is a perspective view showing a case of using transparent material for a front plate, a rear plate, and an exterior frame in the soundproof panel of Fig. 1.

As shown in Figs. 1 to 5, the soundproof panel 100 according to the invention provides an exterior frame 110. The exterior frame 110 encloses a side surface of the soundproof panel 100 according to the invention and has a rectangular shape. For such exterior frame 110, as shown in Fig. 1, an opaque one made of metal can be used. Sometimes as shown in Fig. 5, the exterior frame 110 made of transparent plastic material can be used, and an opaque plastic can be used, too.

The soundproof panel 100 according to the invention provides a front plate 120, which is installed at a front portion of the exterior frame 110 and faces forwards. For the front plate 120 of the embodiment, one divided into the right and left pieces are used for forming entrance or exits of a wind passage 130, and the divided front pieces 121 are disposed apart from each other. In this embodiment, the width of the front pieces 121 is wider than the front pieces 121 on both sides. The front plate 120 is shown to be installed on an inner surface at a front portion of the exterior frame 110, but it can be installed on surfaces directed forwards.

The soundproof panel 100 according to the invention provides a rear plate 140, which is installed at a rear portion of the exterior frame 110 and faces rearwards. For the rear plate 140, one divided correspondingly to the front plate 120 is used for forming an entrance or an exit, and the rear pieces 141 are separated from right to left to be disposed. The width of the rear pieces 141 is wider than the rear pieces 141 on both sides. The rear plate 140 is shown to be installed on an inner surface at a rear portion of the exterior frame 110, but it can be installed on surfaces directed rearwards.

In the case of forming the front plate 120 and the rear plate 140 with divided pieces as in the above, holes do not have to be bored for forming entrance or exit for the wind passage, and therefore it is easy to manufacture the soundproof panel and the productivity is increased. Thus, preferably in the invention, the wind passage 130 is formed in the shape of slit.

Also, since the structure of the soundproof panel 100 is not complicated, it is easy to make and a sufficient opening ratio can be obtained for reducing wind pressure, and it can be manufactured in various types according to the goal frequency for blocking.

Sometimes, the parts corresponding to edges of the front plate 120 or the rear plate 140 can be connected integrally. The same applies to the portions of the front plate 120 or the rear plate 140 corresponding to the thickness of the vertical plates or the horizontal plates of the partition frame 150. In the case of forming the front plate 120 and the rear plate 140 integrally by molding or pressing, one with such a form can be used. However, it is preferable to make using the front pieces 121 and the rear pieces 141 in the form of the embodiment shown in Figs. 1 to 5.

For the front plate 120 and the rear plate 140, as shown in Figs. 1 to 4, an opaque one can be used, but sometimes as shown in Fig. 5, a transparent one can be used.

A partition frame 150 is installed between the front plate 120 and the rear plate 140 as in the above. The partition frame 150 provides a space for forming the wind passage 130 between the front plate 120 and the rear plate 140, and divides the inner space between the front plate 120 and the rear plate 140 from top to bottom and from right to left for forming the resonance chamber (RC) neighboring the wind passage 130, and supports the front plate 120 and the rear plate 140 so as to withstand the wind pressure. For such a partition frame 150, it is preferable to use a mesh type, in which horizontal plates and vertical plates meet each other and form internal space having rectangular shape.

The wind passage 130 of the soundproof panel 100 according to the invention as in the above is formed as wind passages having a shape of slit, and ones in a same line are disposed consecutively to one another except the thickness portions of the horizontal plates or the vertical plates of the partition frame 150(See Fig. 1 or 9).

A resonance hole (RH) connected with the resonance chamber (RC) disposed in the neighbor of the wind passage 130 is formed in the wind passage 130 of the soundproof panel 100. The resonance hole (RH) is preferably formed as a resonance hole (RH) having a shape of slit by the separating plate 152 installed in the partition frame 150 with intervals. The separating plate 152 are disposed with large surfaces facing each other with an interval from right to left and with thickness surfaces facing each other from front to rear, forming the resonance hole (RH) having a rectangular shape. Such separating plates 152 perform as walls defining the wind passage 130 and the resonance chamber (RC) except for the resonance hole (RH).

Each one divided from top to bottom of the separating plate 152 can be attached to a corresponding location of the partition frame 150, but sometimes an inserting groove may be formed in the one that is not divided, and another inserting groove can be formed at the corresponding location of the partition frame 150, to be assembled. Sometimes, in the case of making of the partition frame 150 with plastic, each of the separating plate 152 can be formed integrally.

The installation state of the partition frame 150 and the separating plate 152 is shown in Fig. 2, and the state with the exterior frame 110 only disassembled is shown in Fig. 3.

In the soundproof panel 100 shown in Figs. 1 to 5, since each of the wind passage 130 is formed so as to contact a surface of the partition frame 150 forming the floor thereof, the discharging of rain water and the like that are introduced into the wind passage 130 is achieved automatically, and since the floor of the wind passage 130 is exposed to outside without any step portions, the moisture remaining on the floor can be dried up swiftly by wind speeding up while passing through the wind passage 130.

Also, in the soundproof panel 100 shown in Figs. 1 to 5, since the floor of the wind passage 130 and the floor of the resonance chamber (RC) are connected to each other without any step portions, rain water and the like that are introduced into the resonance chamber RC can be discharged easily, and since water in the resonance chamber RC is discharged to outside through the wind passage 130 as the air pressure of the wind passage 130 is decreased by the speeding wind while passing through the wind passage 130, the discharging of water in the resonance chamber RC is achieved by itself, providing an air-passing soundproof panel with outstanding performance.

According to the invention, it is easy to clean debris introduced into the wind passage 130 and the resonance chamber RC.

Fig. 6 shows another example of an air-passing soundproof panel according to the invention, (a) a plan cross-sectional view, and (b) a cross-sectional view along I-I in Fig. 6(a), and Fig. 7 is a plan cross-sectional view of variation of the air-passing soundproof panel of Fig. 5 with the size the resonance chamber increased.

As shown in Figs. 6(a), 6(b), and 7, the soundproof panel 100 according to the invention may be made to include two resonance chambers (RC) in the front and the rear. For that, the partition frame 150 can be divided into two and can be disposed from front to rear.

In order to form the wind passage 130 between the neighboring two divided partition frames (150a, 150b), divided inner plates 160 are provided correspondingly to the front plate 120 or the rear plate 140. These divided inner plates 160 are disposed with intervals along with divided ones, two divided resonance chambers (RC) disposed from front to rear can be formed by dividing the internal space between the front plate 120 and the rear plate 140. Referring to Fig. 6(b), in each divided resonance chamber RC is formed a resonance hole RH of slit type that is connected to the wind passage 130.

The soundproof panel 100 shown in Fig. 6(a) includes divided separating plates 154, which are installed in the partition frame 150 and divide the rear divided resonance chamber RC from right to left. By the divided separating plates 154, the more resonance chambers RC are disposed in the rear rather than in the front. The volume of the resonance chambers inside is larger than that of the resonance chambers RC neighboring the wind passage 130, and the volumes of the front and rear resonance chambers RC are also different. In each of the divided separating plates 154 may be formed the resonance holes if necessary or not. And the divided separating plates 154 may be formed integrally in the partition frame 150.

Sometimes, according to the goal frequency to block, as shown in Fig. 7, the volume of each of the resonance chambers may be formed larger than that shown in Fig. 6, and the ratio of volumes between the front and rear resonance chambers RC may be varied, so as to realize the soundproof panel 100 according to the invention. The volume of each of the resonance chambers RC may be formed smaller than the one shown in Fig. 6, and the volume ratio between the front and rear resonance chambers RC may be varied, so as to realize the soundproof panel 100 according to the invention.

The rest is same as described in Figs. 1 to 5.

Fig. 8 shows still another example of an air-passing soundproof panel according to the invention, (a) a plan cross-sectional view, and (b) a cross-sectional view along J-J in Fig. 8(a).

Sometimes, as shown in Figs. 8(a) and 8(b), the soundproof panel 100 according to the invention can be realized so as to have three resonance chambers RC in the front and rear. In order to do that way, the partition frame 150 may be divided into three pieces and disposed in the front and rear.

In order to form the wind passage 130 among the neighboring divided

partition frames

150a, 150b, 150c, two divided inner plates 160 are provided correspondingly to the front plate 120 or the rear plate 140. The divided inner plates 160 are also disposed with divided one with interval, and it is enabled to form three divided resonance chambers RC disposed in the front and rear by dividing the inner space between the front plate 120 and the rear plate 140. Referring to Fig. 8(b), in each of the divided resonance chambers RC is formed a slit-shaped resonance hole RH connected to the wind passage 130.

Referring to Fig. 8(a), the volume of the resonance chamber RC in the middle between the front and rear that is disposed in the right side may be formed larger than that of the resonance chamber RC in the middle between the front and rear that is disposed in the left side. That is, according to the invention, since the size of a resonance chambers RC and the size of a resonance chambers RC disposed in the front and rear or in the right and left thereof can be made to be adjusted easily by adjusting the partition frame 150 or the installation position of the divided separating plate 154 installed in the partition frame 150, it is enabled to design and manufacture easily the air-passing soundproof panel according to the goal frequency to block in a specific situation.

The rest is same as described through Figs. 1 to 8.

Fig. 9 is a perspective view showing still another example of a soundproof panel according to the invention.

Sometimes, the front plate 120 may be formed by disposing the front pieces 121 with intervals from top to bottom and disposing the rear plate, inner plates, etc. correspondingly so that the wind passage 130 can be configured to be long in the left and right direction.

This is same as what is obtained by rotating the embodiments described in the above by 90 degrees sideways, and the height and the width from right to left may be adjusted if necessary.

Fig. 10 is a perspective view showing a soundproof panel having convex portions on surfaces according to another embodiment of the invention, and Fig. 11 is an exploded perspective view showing a soundproof panel according to the invention.

The soundproof panel 100 shown in Figs. 10 and 11 comprises the exterior frame 110, the front plate 120 and the rear plate 140 divided from right to left and disposed with interval, the partition frame 150 dividing the internal space, and the separating plate 152 that are combined to the partition frame 150, forming the slit type wind passage 130 and the resonance chambers RC, and forming the slit type resonance holes RH connecting the wind passage 130 and the resonance chambers RC.

In order to form the wind passage 130, the resonance chambers RC and the slit type resonance holes RH for connecting the wind passage 130 and the resonance chambers RC, the separating plates 152 are combined so as to face each other with right-to-left interval and with front-to-rear interval in the front and rear of the partition frame 150. Such separating plate 152 may be installed by attaching the ones divided multiply from top to bottom to the partition frame 150 respectively, but it is possible to form the combining groove in one that is not divided from top to bottom and to insert the corresponding portions of the partition frame 150 in the combining groove, so as to be fixed respectively. In the case of making of plastic, the separating plate 152 may be made integrally with the partition frame 150.

In this embodiment, the wind passage 130 is formed in the entire concave portion CCP except for the thickness portion of the partition frame 150, and the resonance chambers RC may be formed in the convex portion CVP.

In this embodiment, the convex portion CVP is shown as an example to protrude small with a large curvature, but may be made to protrude outwards as much as the curvature radius or more by reducing the curvature in consideration of the size of the wind passage 130, the wind pressure and the strength of the soundproof wall to be installed.

Also, according to the invention, since each of the wind passage 130 is formed to contact the surface of the partition frame 150 forming the floor, the discharging of rain water introduced into the wind passage 130 is achieved for itself, and also since the floor of the wind passage 130 is exposed outside without any step portion, the moisture remaining on the floor of the wind passage 130 is dried swiftly due to the wind speeding up while passing through the wind passage 130.

Also, according to the invention, since the floor of the wind passage 130 and the floor of the resonance chamber RC are connected to each other without step portions, the discharging of rain water introduced into the resonance chamber RC is achieved easily, and also since the air pressure in the wind passage 130 drops due to the wind speeding up while passing through the wind passage 130, the water inside the resonance chamber RC flows out through the wind passage 130, therefore the discharging of water in the resonance chamber RC is achieved for itself, and the moisture remaining on the floor of the resonance chamber RC is dried swiftly due to the wind speeding up while passing through the wind passage 130.

In this embodiment, the front plate 120 and the rear plate 140 are formed with plates curved outwards, and each of the curved plates is disposed with an interval from right to left to form slit type wind passage 130.

Figs. 10 and 11 show that the slit type wind passages 130 are disposed with interval from right to left, but the slit type wind passages 130 may be disposed with interval from top to bottom. This can be seen by rotating the soundproof panel 100 in Fig. 10 from right to left by 90 degrees.

Figs. 12 and 13 are a partially cut-out perspective view showing each of soundproof panels with convex portions on surfaces according to still another embodiments of the invention.

Sometimes, two or three partition frame 150 are disposed from front to rear between the front plate 120 and the rear plate 140 and the separating plate 152 are installed with intervals in each of partition frame 150, so as to install the divided inner plates 160 between the two neighboring partition frame 150 and to form the slit type resonance holes RH between the slit type wind passage 130 and the resonance chamber RC, making the soundproof panel 100 with the resonance chamber RC of two layers or three layers from front to rear.

The rest is same as described in the above with Figs. 10 and 11.

The inventor performed various experiments with various models about soundproof effect for designing and manufacturing the air-passing soundproof panel according to the goal frequency for blocking in a specific situation, which includes the slit type wind passage according to the invention as described in the above, and has obtained the following results.

- Confirmed that the moving of sound range having soundproof according to the change of volume of resonance chamber. Therefore, in designing the sample by adjusting the volume of the resonance chamber, it has been confirmed that the soundproof performance can be adjusted and designed according to the goal frequency to block.

- In the case of fixing the width of inlet(slit type resonance hole), the volume of resonance chamber, and the number of resonance chamber and increasing the opening width of the front surface portion(wind passage), the frequency at which the maximum passing-loss sound pressure is same, and the passing-loss sound pressure tends to decrease more or less due to the difference of the opening ratio.

- When the experiment is performed while fixing parameters except for the width of opening of the resonance hole, as the width of opening of the resonance hole increases, the sound range where maximum passing-loss sound pressure moved.

- As the width of opening of the resonance hole increases, the slope of graph of the passing-loss sound pressure with respect to the frequency changed abruptly from a slow curve.

- When an experiment in which a soundproof panel (opening ratio 25%) forming a slit type wind passage vertically is changed to a soundproof panel (opening ratio 25%) forming wind passage horizontally, the passing-loss sound pressure was decreased more or less with the vertically-formed soundproof panel than with the horizontally-formed soundproof panel.

- The passing-loss sound pressure of metal material was shown to be more excellent by about 2.8dB ~ 3.4dB, rather than acrylic.

- When the position of the resonance hole moves away from the center and to be lopsided, the sound range for blocking moves to the low frequency, and when the position of resonance hole is at the center, it was better for sound-blocking performance.

- The passing-loss increases as the opening ratio of wind passage decreases, and as the width of opening of wind passage decreases the sound range for blocking moves to the lower frequency.

- As the internal space of resonance chamber is divided, the sound range for blocking moves gradually to the high frequency.

With the results from the various experiment, the soundproof panel can be designed, which is adapted to the place where the soundproof wall is going to be installed.

The invention may be applied to manufacturing of an air-passing soundproof panel and soundproof wall using the same.

[Reference Numerals]

100: air-passing soundproof panel 110: exterior frame

120: front plate 121: front pieces

130: wind passage 140: rear plate

141: rear pieces 150: partition frame

152: separating plate 154: divided separating plates

Claims

An air-passing soundproof panel comprising:

an exterior frame enclosing side surfaces;

a front plate installed on a front portion of the exterior frame and formed with a plurality of entrances or exits of wind passages;

a rear plate installed on a rear portion of the exterior frame and formed with entrances or exits of the wind passages; and

a partition frame installed between the front plate and the rear plate for providing a space for forming the wind passages between the front plate and the rear plate, dividing an internal space between the front plate and the rear plate to top and bottom and right and left, and forming a resonance chamber neighboring the wind passages.
The air-passing soundproof panel of Claim 1, wherein the front plate is formed by disposing with intervals front pieces separated for forming the wind passage,

wherein the rear plate is formed by disposing with intervals rear pieces separated for forming the wind passage so as to correspond to the front plate.
The air-passing soundproof panel of Claim 2, wherein the front pieces and the rear pieces form a shape of rectangle, wherein the wind passage along a same line is disposed consecutively top to bottom or left to right except for a thickness portion of the partition frame, so that the wind passage contacts a surface of the partition frame forming a floor thereof.
The air-passing soundproof panel of Claim 1, wherein in the wind passage is formed a resonance hole connected to the resonance chamber disposed at a neighborhood of the wind passage.
The air-passing soundproof panel of Claim 4, wherein the resonance hole is formed with slit-type resonance holes by separation plates installed with intervals in the partition frame.
The air-passing soundproof panel of Claim 2, wherein the front pieces and the rear pieces are formed with a shape of rectangle, wherein the wind passage is formed with slit-type wind passage, wherein the wind passage along a same line is disposed consecutively top to bottom or left to right except for a thickness portion of the partition frame, so that the wind passage contacts a surface of the partition frame forming a floor thereof.
The air-passing soundproof panel of Claim 1, wherein at least one of the front plate and the rear plate comprises a convex portion formed bulging outwards from both sides of the wind passage, so as to reduce a resistance or a drag force against wind blowing in a direction facing the front plate or the rear plate.
The air-passing soundproof panel of Claim 2, wherein at least one of the front pieces and the rear pieces comprises a convex portion formed bulging outwards.
The air-passing soundproof panel of any one of Claims 1 to 8, wherein the partition frame comprises two or more divided partition frames divided into at least two pieces and disposed in a front and in a rear,

and wherein the air-passing soundproof panel includes an inner plate divided and disposed with an interval correspondingly to the front plate so as to form the wind passage between the neighboring divided partition frames and forming two or more divided resonance chambers disposed in a front and in a rear by dividing an inner space between the front plate and the rear plate.
The air-passing soundproof panel of Claim 9, further comprising separating plates which is installed in the partition frame and divides from right to left at least one of the divided resonance chambers disposed in the front and rear.
The air-passing soundproof panel of any one of Claims 1 to 8, wherein the front plate and/or the rear plate are transparent.
A soundproof wall comprising the air-passing soundproof panel according to any one of Claims 1 to 8.