KR200377466Y1 - A visible type sound-absorbing panel with the sound-absorb hole - Google Patents
A visible type sound-absorbing panel with the sound-absorb hole Download PDFInfo
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- KR200377466Y1 KR200377466Y1 KR20-2004-0033931U KR20040033931U KR200377466Y1 KR 200377466 Y1 KR200377466 Y1 KR 200377466Y1 KR 20040033931 U KR20040033931 U KR 20040033931U KR 200377466 Y1 KR200377466 Y1 KR 200377466Y1
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- sound
- sound absorbing
- plate
- noise
- thin plate
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- 238000009413 insulation Methods 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 238000004049 embossing Methods 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
- E04B2001/8438—Slot shaped holes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8442—Tray type elements
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
본 고안은 흡음 패널에 관한 것으로 특히, 다수의 흡음공을 형성하여 소음원으로부터 발생된 소음이 흡수되고, 흡수된 소음을 이중으로 설치된 차음 박판에 의해 차단시킴으로서 소음이 전달되는 것을 차단할 수 있는 투시형 흡음 패널에 관한 것이다. The present invention relates to a sound absorbing panel, in particular, to form a plurality of sound absorbing holes to absorb the noise generated from the noise source, and to block the transmitted noise by blocking the absorbed noise by the double-installed sound-shielding plate is a perspective-type sound absorption It is about the panel.
이러한 본 고안에 따른 흡음 패널은 다수의 흡음공이 형성된 흡음판과 ; 상기 흡음판의 배면에 밀착된 제1 차음 박판과 ; 상기 제1 차음 박판과 소정거리 이격되게 설치된 제2 차음 박판 및 ; 상기 각각의 판의 테두리를 감싸도록 설치된 프레임을 포함하여 구성된다. The sound absorbing panel according to the present invention is a sound absorbing plate formed with a plurality of sound absorbing holes; A first sound insulating thin plate in close contact with the rear surface of the sound absorbing plate; A second sound insulation thin plate installed to be spaced apart from the first sound insulation thin plate by a predetermined distance; It is configured to include a frame installed to surround the border of each plate.
Description
본 고안은 흡음 패널에 관한 것으로 보다 상세하게는 다수의 흡음공이 형성된 흡음판의 배면에 이중으로 차음 박판을 설치하여 흡음공을 통해 유입된 소음이 차음 박판에 의해 차단되게 함으로서 소음이 입력되는 방향의 소음도 양호하게 흡음할 수 있으며, 소원의 반대측으로 소음이 전달되는 것을 효과적으로 차단할 수 있는 투시형 흡음 패널에 관한 것이다. The present invention relates to a sound absorbing panel, and more particularly, by installing a double sound insulating plate on a rear surface of a sound absorbing plate in which a plurality of sound absorbing holes are formed, so that noise introduced through the sound absorbing hole is blocked by the sound insulating thin plate, thereby preventing noise in the direction in which the noise is input. The present invention relates to a see-through sound-absorbing panel that can absorb sound well and can effectively block the transmission of noise to the opposite side of the wish.
소음의 발생이 많은 공간이나 차도 등에는 소음원이 설치되거나 차량이 이동하는 공간에서 발생된 소음이 외부로 전달되는 것을 방지하기 위한 수단으로 흡음 패널이 설치된다. In a space or a roadway where noise is generated a lot, a sound absorbing panel is installed as a means for preventing a noise generated from a noise source or a space in which the vehicle moves to the outside.
이러한 흡음 패널은 통상적으로 소리의 흡수성이 우수한 다공질의 판체가 많이 사용되고 있으나, 이러한 흡음 패널은 소음원이 존재하는 공간과 그 바깥쪽을 시각적으로도 차폐시킴으로서 빛이 유입되지 않아 소음원이 존재하는 공간이 어둡거나 주위 경관이 답답하게 하는 문제가 있었다. Such a sound absorbing panel is generally used a porous plate having excellent sound absorption, but such a sound absorbing panel is a screen that shields the outside of the noise source and the outside visually, so that the light is not in the space where the noise source is dark Or there was a problem that the surrounding landscape is stuffy.
이러한 단점을 보완하기 위해 투명한 반사형 패널이 사용되고 있으나, 이러한 반사판 형태의 패널은 소음원에서 발생된 소음을 반사시켜 소음원측으로 되돌리는 방법으로 소음이 외부로 전달되는 것을 방지하도록 한 것으로 이러한 반사 패널은 소음이 전달되는 것은 막아 줄 수 있으나 소리를 흡수하지 못하므로 소음원 측의 소음이 더욱 심해지는 문제가 있었다. In order to make up for this drawback, transparent reflective panels are used, but these reflector-type panels reflect noise generated from the noise source and prevent it from being transmitted to the outside by returning the noise to the noise source. This can prevent the transmission, but because it can not absorb the sound, there was a problem that the noise on the noise source is more severe.
본 고안은 상기와 같은 문제점을 해소하기 위해 안출된 것으로 흡음 효과를 그대로 유지하면서 외부를 투시할 수 있는 투시형 흡음 패널을 제공함을 목적으로 한다. The object of the present invention is to provide a see-through sound-absorbing panel that can be viewed from the outside while maintaining the sound-absorbing effect as it was devised to solve the above problems.
더욱이 본 고안은 빛과 소음이 통과할 수 있는 다수의 흡음공을 형성하여 소음원으로부터 발생된 소음이 흡수되고, 흡수된 소음을 이중으로 설치된 차음 박판에 의해 차단시킴으로서 소음이 전달되는 것을 차단할 수 있는 투시형 흡음 패널을 제공함을 목적으로 한다. Furthermore, the present invention forms a plurality of sound absorbing holes through which light and noise can pass, absorbs the noise generated from the noise source, and blocks the transmission of noise by blocking the absorbed noise by double-installed sound insulation sheet. It is an object to provide a type sound absorbing panel.
또한, 흡음공이 형성된 부분을 소음원을 향해 돌출시켜 완충 엠보싱부를 형성함으로서 돌출된 엠보싱부의 내부에 완충공간이 형성되게 하여 소음원으로부터 발생된 소음이 이 완충 공간에 의해 완충됨으로서 소음원 측의 소음도 흡수할 수 있는 투시형 흡음 패널을 제공함을 목적으로 한다. In addition, the sound absorbing hole is formed to protrude toward the noise source to form a buffer embossing portion so that a buffer space is formed inside the protruding embossing portion so that the noise generated from the noise source is buffered by the buffer space, thereby absorbing the noise on the noise source side. It is an object to provide a see-through sound absorbing panel.
상기한 바와 같은 본 고안의 목적은 소음이 많은 장소에 설치되어 소음을 차폐하는 흡음 패널에 있어서, 다수의 흡음공이 형성된 흡음판과 ; 상기 흡음판의 배면에 밀착된 제1 차음박판과 ; 상기 제1 차음 박판과 소정거리 이격되게 설치된 제2 차음박판 및 ; 상기 각각의 판의 테두리를 감싸도록 설치된 프레임을 포함하여 구성됨을 특징으로 하는 흡음공을 갖는 투시형 흡음 패널에 의해 이루어진다.An object of the present invention as described above is a sound absorbing panel installed in a place with a lot of noise to shield the noise, the sound absorbing plate formed with a plurality of sound absorbing holes; A first sound insulating thin plate in close contact with the rear surface of the sound absorbing plate; A second sound insulation thin plate installed to be spaced apart from the first sound insulation thin plate by a predetermined distance; It is made by a see-through sound-absorbing panel having a sound-absorbing hole, characterized in that it comprises a frame installed to surround the edge of each plate.
이하, 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일 실시예를 첨부된 도면에 의거 상세하게 설명한다. Hereinafter, an embodiment of a see-through sound absorbing panel having a sound absorbing hole according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일예를 도시한 부분 단면 사시도이고, 도 2는 도 1에 도시된 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일부를 도시한 단면도이고, 도 3은 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 다른 일예를 도시한 부분 단면 사시도이고, 도 4는 도 3에 도시된 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일부를 도시한 단면도이다.1 is a partial cross-sectional perspective view showing an example of a see-through sound absorbing panel having a sound-absorbing hole according to the present invention, Figure 2 shows a part of a see-through sound absorbing panel having a sound absorbing hole according to the present invention shown in FIG. 3 is a partial cross-sectional perspective view showing another example of a see-through sound absorbing panel with sound absorbing holes according to the present invention, and FIG. 4 is a see-through sound absorbing panel with sound absorbing holes according to the present invention shown in FIG. It is sectional drawing which shows a part.
도시한 바와 같이 본 고안에 따른 흡음 패널은 다수의 흡음공(21)이 형성된 흡음판(20)과 하나 이상의 차음 박판(30, 40)을 포함하여 구성된다. As shown, the sound absorbing panel according to the present invention includes a sound absorbing plate 20 having a plurality of sound absorbing holes 21 and one or more sound insulating thin plates 30 and 40.
상기 흡음판(20)은 도 1에 도시한 바와 같이 다수의 흡음공(21)이 관통하여 형성되어 있으며, 그 배면 즉, 소음원의 반대측을 향한 면에는 제1 차음박판(30)이 부착되어 있다. As shown in FIG. 1, the sound absorbing plate 20 is formed by penetrating a plurality of sound absorbing holes 21. The first sound insulating thin plate 30 is attached to the rear surface thereof, that is, the surface facing the opposite side of the noise source.
상기 제1 차음박판(30)과 소정의 거리로 이격된 부분에는 제2 차음 박판(40)이 더 설치되어 있다. A second sound insulation thin plate 40 is further installed at a portion spaced apart from the first sound insulation thin plate 30 by a predetermined distance.
상기 각각의 차음박판(30, 40)은 투명한 합성수지 등으로 만들어져 소원음 측으로부터 조사되는 빛이 반대측으로 투과되거나 또는 반대측으로부터 조사되는 빛이 소음원 측으로 투과할 수 있게 하였다. Each of the sound insulation thin plates 30 and 40 is made of a transparent synthetic resin or the like so that the light irradiated from the sound source side can be transmitted to the opposite side or the light irradiated from the opposite side can be transmitted to the noise source side.
상기 흡음판(20)과 각각의 차음판들(30, 40)은 도 1내지 도 4에 도시한 바와 같이 프레임(10)의 내부에 설치되어 그 외형이 유지된다. The sound absorbing plate 20 and the respective sound insulating plates 30 and 40 are installed inside the frame 10 as shown in FIGS. 1 to 4 to maintain their appearance.
즉, 얇은 필름 형상을 갖는 제1 및 제2 차음 박판(30, 40)은 판이 얇아 그 형상을 유지할 수 없으며, 이러한 박판이 형성을 유지할 수 있게 하기 위한 수단으로 상기 프레임(10)이 사용된다. That is, the first and second sound insulating thin plates 30 and 40 having a thin film shape are thin and cannot maintain their shape, and the frame 10 is used as a means for maintaining the thin plate shape.
즉, 프레임(10)를 그 단면이 ""형상으로 형성하고 전면을 향한 부분에 흡음판(20)을 고정시키고 그 배면에 제1 차음 박판(30)을 부착시키고 배면을 향한 부분의 굽혀진 부분에 제2 차음 박판(40)을 고정시켜 구성함으로서 각각의 차음 박판(30, 40)이 일그러지지 않고 프레임(10)의 형상과 같은 형상을 유지할 수 있게 한다.That is, the cross section of the frame 10 is " "Formed in the shape and fixed to the sound absorbing plate 20 to the front facing portion, the first sound insulating thin plate 30 attached to the back and the second sound insulating thin plate 40 to the bent portion of the rear facing configuration By doing so, each of the sound insulation thin plates 30 and 40 can be maintained without being distorted and having the same shape as that of the frame 10.
상기 프레임(10)은 무게가 가볍게 하기 위해 알루미늄 등의 경량 금속 또는 합성수지 등으로 제작될 수 있다. The frame 10 may be made of a lightweight metal such as aluminum or a synthetic resin for lighter weight.
상기 흡음판(20)은 도 3 및 도 4에 도시한 바와 같이, 소음원을 향해 돌출된 완충 엠보싱부(22)를 더 형성할 수 있다. As shown in FIGS. 3 and 4, the sound absorbing plate 20 may further form a buffer embossing part 22 protruding toward the noise source.
상기 완충 엠보싱부(22)는 도시한 바와 같이 각 흡음공(21)이 형성된 부분에 형성되며, 평평한 평판 형상의 흡음판(20)을 어느 일측으로부터 가압하여 원형으로 엠보싱부를 만든 후 돌출된 부분을 일괄 적으로 잘라냄에 의해 흡음공(21)이 형성되게 한다. The buffer embossing portion 22 is formed in a portion where each sound absorbing hole 21 is formed as shown, by pressing the flat plate-shaped sound absorbing plate 20 from any one side to form an embossed portion in a circular shape and then collectively projecting the portion As a result, the sound absorbing hole 21 is formed by cutting.
상기 완충 엠보싱부(22)에 흡음공(21)이 형성된 흡음판(20)은 소음원으로부터 흡음공(21)으로 유입된 소음은 제1 차음 박판(30)에 부딛혀 반사되어 완충 엠보싱부(22)의 내벽에 부딛혀 난 반사되고 난 반사된 소음은 다시 제1 차음 박판(30)에 부딪히며 박판에 흡수되어 소음이 점차 줄어든다. The sound absorbing plate 20 in which the sound absorbing hole 21 is formed in the shock absorbing embossing unit 22 is reflected from the noise source into the sound absorbing hole 21 against the first sound insulating thin plate 30 to absorb the shock absorbing embossing unit 22. Reflected noise hit by the inner wall of the hit back to the first sound insulating thin plate 30 is absorbed by the thin plate is gradually reduced noise.
이때 제1 차음 박판(30)은 흡음공(21)을 제외한 부분이 흡음판(20)에 밀착되어 있으므로 움직이지 않게 되며, 제1 차음 박판(30)의 흡음공(21) 부분에 부딛혀 통과되는 소음은 다시 제2 차음 박판(40)에 의해 흡수되어 소음을 제2 차음 박판(40)을 통과하지 못하고 흡수되어 소음이 본 고안의 흡음 패널을 통과하지 못하게 된다. In this case, the first sound insulation thin plate 30 is not moved because the portion except the sound absorbing hole 21 is in close contact with the sound absorbing plate 20, and passes through the sound absorbing hole 21 portion of the first sound insulating thin plate 30. The noise is again absorbed by the second sound insulation thin plate 40, so that the noise does not pass through the second sound insulation thin plate 40, and the noise does not pass through the sound absorbing panel of the present invention.
위에서와 같이 차음판(20)에 완충 엠보싱부(22)를 형성하고 여기에 흡음공(21)을 형성함으로서 소음원으로부터 흡음 패널에 전달된 소음은 다시 반사되어 소음원 측으로 되돌아가지 않게 되며, 이에 따라 본 고안의 투시형 흡음 패널은 소음원의 소음이 외부로 전달되는 것을 방지할 뿐만 아니라 소음원 측의 소음도 흡수하여 소음이 줄어들게 하거나 울리는 것을 방지 할 수 있다. By forming the buffer embossing portion 22 in the sound insulating plate 20 and forming the sound absorbing holes 21 therein, the noise transmitted from the noise source to the sound absorbing panel is not reflected back to the noise source side. Inventive see-through sound-absorbing panel not only prevents the noise of the noise source from being transmitted to the outside, but also absorbs the noise of the noise source to prevent the noise from being reduced or ringing.
상기와 같이 구성된 본 고안에 따른 투시형 흡음 패널은 흡음공으로 유입된 소음이 제1 및 제2 차음 박판에 의해 차단되고 흡수되어 소음원의 소음이 외부로 전달되는 것을 방자할 수 있는 효과가 있다. Perspective sound-absorbing panel according to the present invention configured as described above has the effect that the noise introduced into the sound-absorbing hole is blocked and absorbed by the first and second sound insulating thin plate to prevent the noise of the noise source is transmitted to the outside.
또한, 흡음판의 흡음공이 형성된 부분을 소음원 측으로 돌출시켜 그 내부에 완충공간을 형성함으로서 소음원으로부터 흡음공으로 유입된 소음이 제1 차음 박판에 의해 반사되어 소음원 측으로 전달되는 것을 방지하여 소음원 측 공간의 소음도 감소시킬 수 있는 효과가 있다. In addition, by protruding the portion of the sound absorbing plate formed in the sound absorbing plate toward the noise source side to form a buffer space therein, the noise introduced into the sound absorbing hole from the noise source is prevented from being reflected by the first sound insulating sheet to be transferred to the sound source side, thereby reducing the noise of the space of the sound source side. It can be effected.
본 고안은 상기에서 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 실용신안등록청구의 범위에 의해 마련되는 본 고안의 정신이나 분야를 벗어나지 않는 한도 내에서 본 고안이 다양하게 개조 및 변화될 수 있다는 것을 본 고안이 속하는 분야에서 통상의 지식을 가진 자는 용이하게 알 수 있음을 밝혀두고자 한다. Although the present invention has been illustrated and described with reference to the specific embodiments above, the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following utility model registration claims. It will be apparent to those skilled in the art that the present invention belongs.
도 1은 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일예를 도시한 부분 단면 사시도이고, 1 is a partial cross-sectional perspective view showing an example of a see-through sound absorbing panel having a sound absorbing hole according to the present invention,
도 2는 도 1에 도시된 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일부를 도시한 단면도이고,2 is a cross-sectional view showing a part of a see-through sound absorbing panel having a sound absorbing hole according to the present invention shown in FIG.
도 3은 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 다른 일예를 도시한 부분 단면 사시도이고, 3 is a partial cross-sectional perspective view showing another example of a see-through sound absorbing panel having a sound absorbing hole according to the present invention,
도 4는 도 3에 도시된 본 고안에 따른 흡음공을 갖는 투시형 흡음 패널의 일부를 도시한 단면도이다.4 is a cross-sectional view showing a part of a see-through sound absorbing panel having a sound absorbing hole according to the present invention shown in FIG.
*도면의 주요 부분에 대한 부호 설명** Description of symbols on the main parts of the drawings *
10 : 프레임 20 : 흡음판 10 frame 20 sound absorption plate
21 : 흡음공 22 : 완충 엠보싱부21: sound absorbing hole 22: cushioning embossed portion
30 : 제1 차음박판 40 : 제2 차음박판30: first sound insulating sheet 40: second sound insulating sheet
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0033931U KR200377466Y1 (en) | 2004-11-30 | 2004-11-30 | A visible type sound-absorbing panel with the sound-absorb hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2004-0033931U KR200377466Y1 (en) | 2004-11-30 | 2004-11-30 | A visible type sound-absorbing panel with the sound-absorb hole |
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| Publication Number | Publication Date |
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| KR200377466Y1 true KR200377466Y1 (en) | 2005-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR20-2004-0033931U KR200377466Y1 (en) | 2004-11-30 | 2004-11-30 | A visible type sound-absorbing panel with the sound-absorb hole |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101174411B1 (en) | 2010-02-09 | 2012-08-16 | 주식회사 거광유브이씨 | Ceiling panel |
| KR20150141459A (en) * | 2014-06-10 | 2015-12-18 | 박신자 | Room acoustic panel sound-absorbing material using sand |
| WO2017146310A1 (en) * | 2016-02-26 | 2017-08-31 | 주식회사 씨앤월드 | Silencer including sound absorbing perforated plate and sound absorbing module |
| CN109927844A (en) * | 2019-04-29 | 2019-06-25 | 江龙船艇科技股份有限公司 | Passenger boat and yacht sound insulation and noise reduction structure |
| KR102015466B1 (en) * | 2019-07-22 | 2019-08-28 | (주)알파앤오메가 | Transformer for electric power that prevents deterioration of insulation oil performance by improving heat dissipation performance |
-
2004
- 2004-11-30 KR KR20-2004-0033931U patent/KR200377466Y1/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101174411B1 (en) | 2010-02-09 | 2012-08-16 | 주식회사 거광유브이씨 | Ceiling panel |
| KR20150141459A (en) * | 2014-06-10 | 2015-12-18 | 박신자 | Room acoustic panel sound-absorbing material using sand |
| KR101631262B1 (en) * | 2014-06-10 | 2016-06-16 | 박신자 | Room acoustic panel sound-absorbing material using sand |
| WO2017146310A1 (en) * | 2016-02-26 | 2017-08-31 | 주식회사 씨앤월드 | Silencer including sound absorbing perforated plate and sound absorbing module |
| CN109927844A (en) * | 2019-04-29 | 2019-06-25 | 江龙船艇科技股份有限公司 | Passenger boat and yacht sound insulation and noise reduction structure |
| KR102015466B1 (en) * | 2019-07-22 | 2019-08-28 | (주)알파앤오메가 | Transformer for electric power that prevents deterioration of insulation oil performance by improving heat dissipation performance |
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