KR20150142969A

KR20150142969A - Soundproof Panel for Noise barrier

Info

Publication number: KR20150142969A
Application number: KR1020140071776A
Authority: KR
Inventors: 김성겸
Original assignee: 제국산업(주)
Priority date: 2014-06-13
Filing date: 2014-06-13
Publication date: 2015-12-23

Abstract

The present invention provides a transparent soundproof panel used for a soundproof wall installed in one side of a road or a median strip, and a soundproof tunnel. The present invention relates to the soundproof panel with a diffracted sound reducing means capable of enhancing an effect of reducing not only a direct sound, but also diffracted sound by applying a sound absorbing function, and an interfering function to the transparent soundproof panel having a direct sound reflecting function only. Disclosed is the soundproof panel with a diffracted sound reducing means characterized by including single soundproof panel frames installed to vertically and horizontally be assembled; and the diffracted sound reducing means, as the transparent soundproof panel including a panel assembled between the soundproof panel frames, having one end inserted into one surface of the soundproof panel frame and an other end protruding forwards, cutting off sound transmitted upwards along the panel stage by stage.

Description

Soundproof Panel for Noise Barrier with Diffraction Noise Reduction

The present invention relates to a soundproof plate having diffracted noise reduction means, and more particularly, to a soundproof plate used for a soundproof wall and a soundproof tunnel installed on one side of a road or a center separator, To a soundproof plate having a diffraction noise reducing means for providing a structure having a sound absorption function and a noise interference function so as to increase not only direct noise but also reduction effect on diffraction noise. The present invention can be applied regardless of the material of the soundproof plate or the light transmittance. Hereinafter, the present invention will be described with reference to a transparent soundproof plate as a representative example. The scope of application of the present invention is not limited to a 'transparent sound insulation plate'.

Generally, a soundproof wall or a soundproof panel is a noise reduction countermeasure structure that reduces the noise distribution of the surrounding area to a certain level or less by blocking and absorbing noise during the noise transmission process. And is installed along the longitudinal direction of both sides of the railroad side to prevent the generated noise from being transmitted to the surroundings.

With the rapid industrial development of modern times, transportation has been diversified, and traffic volume is increasing exponentially. Accordingly, residents residing in the vicinity of the road, around the railroad, and around the airport are suffering from the noise generated from the transportation means, and soundproof panels are mainly used as a method for preventing such noise.

These kinds of soundproofing boards include sound absorption type (absorbing most of sound waves), reflection type (reflecting most of sound waves by soundproofing plate), interference type (attenuated by the incident sound waves and reflected sound waves), resonance type And the sound waves are attenuated by resonance due to the presence of holes in the interior and cavities in the interior.

These soundproofing panels are installed at a constant height along the edge of the road to prevent noise from being transmitted to adjacent buildings or houses.

In addition, in order to prevent noise from being transmitted to the high-rise floor, the upper end of the soundproofing plate may be bent to the noise generating zone.

That is, a general sound insulation board structure installed on the road is constructed along a basic structure made of concrete, and a vertical support is provided at an upper portion of the basic structure, and a transparent acrylic and sound insulation between the support and the support , insulation of sound) and sound absorbing (acoustic absorption) soundproof panel or soundproof panel.

So far, many kinds of soundproofing boards used for these soundproofing walls have been developed and used. Recently, however, the use of transparent soundproofing boards has been increasing due to security of view or trouble with sunshine. The present invention is not limited to the transparent soundproof panel, but the transparent soundproof panel will be mainly described below.

However, in the case of a transparent soundproof panel, only a direct reflection effect of noise can be expected. Therefore, there is a disadvantage that the sound effect can be seen only when the sound receiving area is located on either a road or a railway.

If a transparent sound barrier is installed in a situation where there is a mooring area on both sides of a road or a railway, direct noise reflected from both sides may cause a resonance effect to each other, resulting in an increase in noise level.

To date, various prior arts have developed a transparent soundproofing board having a sound absorbing function, an interference function, or both, and all of these techniques were techniques for reducing direct noise only.

In addition, in order to combine these functions, the safety of the closed structure of the soundproofing panel is abandoned. As a result, it is difficult to use the soundproofing wall where the length of the soundproofing wall is long, resulting in a reduction in the span length. In other words, there is a need for a structure that enables a long span by appropriately responding to a displacement or a wind load due to its own load, structurally, while realizing such a function.

In addition, although the soundproof wall provided with the transparent sound insulation plate blocks most of the direct noise and high frequency noise by its own height, in order to effectively reduce the low frequency noise considering the reduction of the additional noise or the noise frequency band which can be heard by humans, Although the main characteristic of the diffraction noise is to be reduced, such a technology is still insufficient.

Patent Registration No. B1 10-0823846 (Apr. 21, 2008)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a soundproof panel having a diffusing noise reducing unit that has a sound absorbing function and an interference function but has structural stability, .

Another object of the present invention is to provide a transparent sound insulation panel to which a structural device capable of more effectively responding to a diffraction sound is applied.

In order to achieve the above technical object, in order to achieve the structural stability of the frame, a plurality of I-shaped bars cut into a predetermined length in a vertical direction and a horizontal direction are inserted into a cut-off frame, To increase the resistance to vertical load according to lamination and to increase resistance to horizontal load according to wind load.

It is still another object of the present invention to provide a sound absorbing member inserted into a frame and having a groove in which a diffraction noise inducing slit capable of diffracting interference with a low frequency can be inserted on a surface of the frame coinciding with a direction of a noise source, The present invention is intended to provide a transparent sound insulation panel which can be formed into a final configuration by inserting a diffraction noise reduction means capable of being deformed into a roof or a right angle or various forms in order to maximize diffraction interference.

In addition, the present invention discloses a structure that not only efficiently responds to wind loads but also can secure a connection of a soundproof plate stacked in multiple stages, and can be easily installed in the field in consideration of displacement of a soundproof plate having a long length.

In order to achieve the above-mentioned object, the present invention provides a soundproof panel including a panel assembled between a soundproof panel frame and the soundproof panel frame, wherein one end is coupled to one side of the soundproof panel frame and the other end is protruded forward, And diffracted noise reducing means for blocking the diffracted noises rising along with the diffracted noise reducing means.

The present invention may further comprise a sound absorbing material installed inside the sound insulation panel frame.

Wherein the sound insulation panel frame comprises: a hollow frame body having an inner hollow portion formed with connecting end insertion grooves formed on both sides of one open end and a connecting inner insertion groove formed on the inner side of the hollow portion; A connection socket having a projection for inserting into a connection end insertion groove of the frame body at one side thereof, a protrusion insertion portion having a connection insertion groove at the other side thereof, and a panel assembly groove into which the panel is inserted and fixed; And a support plate formed at one end with a protruding engaging portion for engaging with the connection end insertion recess of the frame body and a protruding insertion portion formed at the other end with the protruding insertion portion for engaging with the connection insertion recess of the connection socket.

The frame body is formed with a rib groove horizontally protruding inwardly. A groove is formed at the upper and lower ends of the groove groove, and a diffraction noise inducing slit, which is a diffraction noise reducing means for reducing noise in the rib groove and the step groove, And may be installed so as to be assembled.

The rib grooves and the tread grooves are formed on the outer sides of the horizontal both sides of the frame body, and the diffraction noise inducing slits are coupled to the frame body in a pair.

The diffraction noise reducing means may include a diffraction noise inducing slit, which is a fitting portion for one end to be fitted into the soundproof plate frame, and the other end is formed in a roof shape to reduce the noise by guiding the noise direction. have.

The roof-type diffraction noise reduction portion may be formed of two or more pieces, and the upper portion may be extended to cover the lower portion.

The fitting portion may include a fitting rib that is fitted to the inside of the sound insulation panel frame to protrude and extend so as to have a rigidity reinforcing function and a coupling protrusion protruding from the upper and lower ends to fit into the sound insulation plate frame so as to prevent the fitting rib from falling out .

The diffraction noise reduction part may be formed at one side of the inner side to form a diffraction interference protrusion for changing the flow direction of the noise to interfere with the noise.

Wherein the frame body includes a rib groove formed to protrude inwardly and a step groove formed at one of upper and lower ends of the rib groove,

And a connection fixing member which is installed to be able to engage with the rib groove and the step groove and connects and fixes the frame body which is vertically stacked and assembled.

The connection fixing member may include a body which is bent and partly separated from the frame body; Upper and lower extension portions formed at both ends of the body and coupled to the rib groove and the step groove; And a binding portion extending from one side of the upper and lower extension portions 152 and 153 to be inserted into the frame body 110 and reinforcing the rigidity of the frame body.

Wherein the upper and lower extension portions are formed in a roof shape and further include a diffraction noise reduction portion for guiding and reducing the noise direction along the panel, the diffraction noise reduction portion being protruded on one side of the inner side to diffract the flow direction of the noise, More protrusions can be formed.

According to the present invention as described above, the sound absorbing plate frame has a sound absorbing function and an interference function, but has a structural stability, thereby achieving economic benefits.

Also, since the frame is assembled and the I-shaped reinforcing bar is inserted in the vertical direction and the horizontal direction, resistance to wind load is increased, and the length of the span of the transparent sound insulation panel can be lengthened. You can expect.

Further, there is also an effect of increasing the stiffness resistance against the wind load in the horizontal direction by using the corrugated shape of the rib groove formed on the outer circumferential surface of both side portions of the plate of the sound insulation plate frame.

In addition, the diffraction noise induction slit attached to the side of the frame and the sound absorbing material inserted therein can make the path of the low frequency diffraction sound longer, making noise energy loss more effective and maximizing the effect of reducing the noise.

Also disclosed is a structure for interconnecting soundproof plates of a laminated structure, which facilitates site construction while reinforcing rigidity.

1 to 5 show an embodiment of an soundproof plate having diffraction noise reduction means according to the present invention,
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a whole state diagram of a transparent soundproof panel according to the present invention,
2 is a side sectional view of a transparent sound insulation board according to the present invention,
3 is an exploded perspective view showing a main part of a transparent sound insulation board according to the present invention,
Fig. 4 is an assembled cross-sectional view of Fig. 3,
FIG. 5 is a plan view showing a part of the transparent soundproof panel according to the present invention.
6A is a perspective view illustrating a structure of a transparent sound insulation panel according to another embodiment of the present invention,
FIG. 6B is a view showing a state in which the structure of the transparent sound insulation panel according to another embodiment of the present invention is installed on a road center separator (FIGS. 6C and 6D are rendered drawings)
FIG. 7 is a sectional view showing an embodiment of a transparent sound insulation panel according to the present invention, in which a connection fixing member for fixing a plate assembled up and down is installed,
8 is a view showing the operation of the diffraction noise reducing means of the transparent sound insulation panel according to the present invention.

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

It will be understood by those of ordinary skill in the art that the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, .

1 to 6 show an embodiment of an soundproof plate having diffraction noise reduction means according to the present invention.

A soundproofing plate (10) having diffraction noise reduction means according to the present invention comprises: a soundproofing plate frame (100) installed to be assembled with each other; And a panel 200 installed to be assembled between the soundproofing plate frames 100. The upper and lower and side assemblies and the panel 200 are provided by the soundproofing plate frame 100 so as to be integrated with each other . The panel 200 is preferably a transparent panel, and various other types may be applied.

The present embodiment further includes a diffraction noise reducing means provided at one end to be inserted into the inside of the soundproofing plate frame 100 and the other end to be protruded to cancel and reduce diffracted noise rising along the soundproofing plate 10 do. If the present embodiment is repeatedly constructed up and down on one sound barrier wall, the noise may be stepped down.

In this embodiment, a sound absorbing material 300 is further inserted into the inside of the sound insulation panel 100 so as to catch noise diffracted by the panel 200. The sound absorbing panel 300 is opened in the direction of the panel 200. The sound absorbing material 300 provided inside the sound absorbing panel frame 100 is inserted into the open part of the panel 200, The noise is reduced through the sound absorption function. The construction of the soundproof frame 100 will be described in more detail.

1 to 4, the soundproofing plate frame 100 includes a hollow frame body 110 for enhancing ease of installation; A connection socket 120 assembled to the frame body 110; And a support plate 130 supported in the frame body 110. Since the soundproof panel frame can be easily assembled and constructed by the above-described configurations, particularly, the sound absorbing material can be easily installed, and the supporting plate 130 can be installed only as needed in the horizontal and vertical directions of the soundproof panel, Not only stability and easiness of construction can be secured at the same time, but an opening can be formed so that noise can be introduced into the sound absorbing material 300 in the frame body 110.

In addition, the frame body 110 has one open end and a connecting end insertion slot 111, 112 and a connection inner insertion slot 113 formed therein. This is for the combination of the above configurations.

In addition, the frame body 110 is formed with rib grooves 115 protruding inward (from the outer circumferential surface to the inner circumferential surface) at both side portions thereof, and a step groove 116 is formed at the upper and lower ends of one side of the rib grooves 115 And the diffraction noise inducing slit 140, which is a diffraction noise reducing means for canceling noise, can be fitted and assembled into the rib groove 115 and the step groove 116.

In addition, a plurality of the rib grooves 115 formed on the outer circumferential surface of both side portions of the frame body 110 of the soundproofing plate frame 100 may have a wrinkle shape in the horizontal direction, The stiffness resistance against the wind load in the horizontal direction is increased.

The connection socket 120 has a protrusion 121 formed at one side thereof for coupling with a connection end insertion groove of the frame body 110 and a protrusion 121 having connection insertion slots 122a and 123a at the other side thereof. Portions 122 and 123 are formed.

In addition, a panel assembly groove 124 for fitting the panel 200 is formed on the bottom of the connection socket 120.

The support plate 130 is formed at one end thereof with a protruding engaging portion 131 for engaging with the connection end insertion slots 112 and 113 of the frame body 110, A protrusion insertion portion 132 for coupling to the connection insertion recesses 122a and 123a is formed.

Preferably, the support plates 130 are vertically or horizontally coupled to the frame body 110 in a plurality of directions, and the width of the frame body 110 is adjusted so that the frame body 110 may have a partially open structure instead of a closed structure. It can be adjusted appropriately.

The diffraction noise reducing means is for canceling the diffraction noise rising along the soundproofing plate 10 step by step, and includes a fitting portion 141 for one end to be fitted into one side of the soundproofing plate frame; And a diffraction noise inducing slit 140 including a diffraction noise reducing part 142 extending in a roof shape at the other end connected to the fitting part 141. [

Here, the diffraction noise reduction unit 142 may have a shape of a round roof that gradually narrows inward to the inside and satisfactorily induce the noise to the inside, so that the shape is not necessarily limited, It is preferable that the shape of the curved surface is gradually narrowed from the outside to the inside. Further, the diffraction noise reduction unit 142 may be provided with a pair of upper and lower pairs of a long diffraction noise inducing slit 140 and a short diffraction noise inducing slit 140A. This can increase the step noise reduction effect on the diffraction noise, and in some cases, it is possible to use a stepwise staircase structure.

The fitting portion 141 may further include a fitting rib 141a and a fitting protrusion 141b protruding from one side and upper and lower ends to be assembled to the soundproof plate frame 100. [

In addition, the diffraction noise reduction unit 142 may further include a diffraction interference protrusion 142a protruding from one side of the inner side to break the flow direction of the noise.

Preferably, at least one or more diffraction interference projections 142a can be partitioned so that diffraction interference with respect to low frequencies can be maximized according to the type and number of the diffraction interference protrusions.

Meanwhile, the transparent sound insulation panel according to the present invention may be provided as follows in accordance with the form installed on the road median block.

FIG. 6A is a view showing a state in which a transparent sound insulation panel according to another embodiment of the present invention is installed in a road center separator, FIG. 6B is a view showing another structure of a transparent sound insulation panel according to the present invention, State diagram. The present embodiment is the same as the embodiment already described in the point that it comprises the sound insulation plate frame. Therefore, the same reference numerals are given to the same parts as those in the above-described embodiment, and a detailed description thereof will be omitted.

A pair of right and left diffraction noise inducing slits are respectively installed in rib grooves formed in the form of wrinkles on the outer circumferential surfaces of both side portions of the frame body 110.

Thus, the noise transmitted from the left and right sides of the road can be reduced through diffraction or interference in a transparent sound insulation panel installed on a structure such as a central separator of a road, thereby preventing noise from being passed to the opposite side of the road. (It is self-evident that it is possible to increase the effect by installing a sound absorbing material that performs a sound absorbing function.)

7 is a cross-sectional view illustrating a transparent fixing plate according to another embodiment of the present invention. The present embodiment is also the same as that in the above-described embodiment in that it includes the sound insulating plate frame, and thus the same portions are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The soundproof panel frame 100 includes a frame body 110 assembled to be vertically stackable. The frame body 110 includes a rib groove 115 protruding from an outer circumferential surface of both side surface portions to an inner circumferential surface, 115 are formed so as to have a step groove 116 at the upper and lower ends of one side thereof. In this embodiment, the depth of extension of the rib groove 115 to the inside of the sound insulation panel frame 100 is deep. This has the effect of increasing the stiffness against horizontal loads such as wind loads. The sound absorbing material inside can be arranged as required.

The present invention may further include a connection fixing member 150 that is coupled to the rib groove 115 and the step groove 116 so as to connect and fix the frame body 110, which is vertically stacked and assembled, do.

Further, the connection fixing member 150 includes a body 151 bent up and down; Upper and lower extension portions 152 and 153 extending from both sides of the body 151 to be coupled to the rib groove 115 and the step groove 116; And a coupling part 154 extending from one side of the upper and lower extension parts 152 and 153 to be inserted and fixed to the inside of the frame body 110. The connection fixing member has a vertically bent body 151 so as to be separated from the frame body 110 without being in close contact with the frame body 110. In this case, So that the connection fixing member 150 can be inserted into the upper and lower frame bodies 110. That is, the connection fixing member 150 can be fitted in accordance with the condition of the site while bending the bent portion.

The upper and lower extension portions 152 and 153 are formed to have a roof shape at one side to form a diffraction noise reduction portion for guiding the noise direction that hits the panel, The noise reduction part may be further formed on the inner side so as to further form a diffraction interference protrusion for breaking the flow direction of the noise.

Thus, the noise cancellation function that is leaked through the gap between the lamination parts by the connection fixing member 150 installed between the upper and lower frame bodies 110 stacked in the transparent sound insulation plate, and the thickness of the connection fixing member, The resistance of the transparent sound insulating plate can be increased.

In addition, the noise interference function can be effectively performed through the diffraction noise reduction unit formed integrally with the connection fixing member 150.

Hereinafter, the operation and effect of the soundproof plate having the diffraction noise reducing unit according to the present invention will be described.

8 is a view showing the operation of the diffraction noise reducing means of the transparent sound insulation panel according to the present invention.

The soundproof panel 10 according to the present invention is assembled to the upper, lower, and side surfaces by the soundproof panel 100, and the panels 200 assembled between the soundproof panel frames 100 are assembled together .

And one end of which is insertable on one side of the soundproof panel frame 100 and is provided so as to protrude forward from the other end so as to diffractively cancel the noise rising in the soundproofing plate 10 in stages, 140 can be assembled and provided.

8, the operation of the diffraction noise reducing means for canceling the noise transmitted to the soundproofing plate 10 in stages can be performed by the diffraction noise inducing slit 140. [

Here, the diffraction noise inducing slit 140 is a multi-layer structure for canceling the effective diffraction noise.

First, a low-frequency diffraction sound of a noise transmitted to the transparent sound-absorbing plate hits the panel and can rise to the upper side. Such diffraction noise increases the noise distribution in the surrounding area over the soundproof plate. Therefore, the energy of the noise to be lifted can be made longer by the diffraction noise inducing slit assembled in the stepwise multi-layer structure, and the noise energy can be canceled by passing the noise energy over the transparent soundproof plate through the function of reflection, interference, . On the other hand, the noise energy that can escape between the panels can be absorbed by the sound absorbing material provided in the sound insulating plate frame to cancel out.

In other words, the sound absorbing material built in the soundproof panel frame is used to cut off the noise that exits the sound barrier wall, and also to make the path of the low frequency diffracted sound according to the structure of the diffraction noise induction slit long, and to use interference Thereby more effectively canceling the noise energy loss, thereby maximizing the effect of reducing the diffraction noise.

As described above, the soundproof plate having the diffraction noise reducing means according to the present invention has the sound absorbing function of the frame and the diffraction noise reducing means, but has the structural stability, so that the economical advantage can be achieved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.

10: Sound insulation board
100: Soundproof plate frame
110: frame body
111: end insertion groove
112: end insertion groove
113: Inner insertion groove
115: rib groove
116: Short groove
120: connection socket
121: protrusion
122:
122a: Insertion groove for connection
123:
124: panel assembly groove
123a: Insertion groove for connection
130:
131:
132: protrusion insertion portion
140: Diffraction noise induction slit
141:
141a:
141b: engaging projection
142: Diffraction noise reduction part
142a: diffraction interference projection
150: connecting fixing member
151: Body
152: Upper and lower extension parts
153: upper and lower extension parts
154:
200: Panel

Claims

A sound insulation board frame 100;
A sound insulation board (10) comprising a panel (200) assembled between the sound insulation panel frames (100)
Further comprising a diffraction noise reducing unit coupled to one side of the soundproof panel frame 100 at one end thereof and the other end protruding forward to block diffraction noise rising along the panel 200
Soundproofing board with diffraction noise reduction means.

The method according to claim 1,
And a sound absorbing material (300) installed inside the sound insulation panel frame (100)
Soundproofing board with diffraction noise reduction means.

The method according to claim 1,
The sound insulation panel frame 100 includes:
A hollow frame body 110 having hollow interior formed with connecting end insertion grooves 111 and 112 formed on both sides of one open end and coupling inner insertion slots 113 formed inside the hollow type, ;
A protrusion 121 is formed at one side to be coupled to the connection end insertion groove of the frame body 110 and a protrusion insertion portion 122 and 123 having connection insertion slots 122a and 123a at the other side A connection socket 120 having a panel assembly groove 124 in which a panel is inserted and fixed;
A protruding engaging portion 131 is formed at one end to be engaged with the connecting end inserting groove 112 of the frame body 110 and a connecting insertion recess 122a of the connecting socket 120 is formed at the other end, And a support plate 130 on which a protrusion insertion portion 132 is formed to be engaged with the support plate 130. [
Soundproofing board with diffraction noise reduction means.

The method of claim 3,
The frame body 110 is formed with a rib groove 115 projecting inward horizontally and a step groove 116 is formed at the upper and lower ends of the rib groove 115,
And a diffraction noise inducing slit 140, which is a diffraction noise reducing means for reducing noise, is fitted to the rib groove 115 and the single groove groove 116
Soundproofing board with diffraction noise reduction means.

5. The method of claim 4,
The rib grooves 115 and the trough grooves 116 are formed on both outer sides of the frame body 110 on both sides of the frame body 110 and the diffraction noise inducing slits 140 are coupled to the frame body 110 in a pair Characterized by
Soundproofing board with diffraction noise reduction means.

6. The method according to claim 1 or 5,
The diffraction noise reducing means
A fitting portion 141 for one end to be fitted into the soundproof plate frame 100,
And a diffraction noise inducing slit (140), which is a diffraction noise reduction part (142) that extends in the form of a roof to induce a noise direction to block noise
Soundproofing board with diffraction noise reduction means.

The method according to claim 6,
The roof-shaped diffraction noise reduction part 142 is formed in two or more pieces, and the upper part of the diffraction-type noise reduction part 142 is extended to cover the lower part.
Soundproofing board with diffraction noise reduction means.

The method according to claim 6,
The fitting portion 141
A fitting rib 141a fitted to the inside of the soundproofing plate frame 100 to be extended and protruded under the rigid reinforcing function,
And an engaging protrusion 141b protruding from an upper end and a lower end to be fitted into the sound insulation panel 100 so as to prevent the insertion rib 141a from being disengaged
Soundproofing board with diffraction noise reduction means.

The method according to claim 6,
The diffraction noise reduction unit 142 may further include a diffraction interference protrusion 142a protruding from one side of the inner side to change a flow direction of the noise to interfere noise.
Soundproofing board with diffraction noise reduction means.

The method according to claim 1,
The sound insulating plate frame 100 is laminated,
And a frame body (110) stacked on top and bottom,
The frame body 110 is formed to have a rib groove 115 protruding inward and a step groove 116 formed at the upper and lower ends of one side of the rib groove 115,
And a connection fixing member 150 which is installed to be able to engage with the rib groove 115 and the step groove 116 and connects and fixes the frame body 110 which is vertically stacked and assembled.
Soundproofing board with diffraction noise reduction means.

11. The method of claim 10,
The connection fixing member 150
A body 151 folded and partly spaced apart from the frame body;
Upper and lower extension portions 152 and 153 formed at both ends of the body 151 to be engaged with the rib groove 115 and the step groove 116;
And a coupling unit 154 extending from one side of the upper and lower extension units 152 and 153 to be inserted into the frame body 110 and reinforcing the rigidity of the frame body.
Soundproofing board with diffraction noise reduction means.

12. The method of claim 11,
The upper and lower extension portions 152 and 153
And a diffraction noise reduction part formed in a roof shape to induce and reduce the noise direction along the panel,
Wherein the diffraction noise reducing part is further formed on an inner side of the diffraction noise reducing part so that a diffraction interference protrusion is formed to bend the flow direction of the noise
Soundproofing board with diffraction noise reduction means.