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KR100747744B1 - Sound-absorbing sound insulation board with interference slit - Google Patents
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KR100747744B1 - Sound-absorbing sound insulation board with interference slit - Google Patents

Sound-absorbing sound insulation board with interference slit Download PDF

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KR100747744B1
KR100747744B1 KR1020070042357A KR20070042357A KR100747744B1 KR 100747744 B1 KR100747744 B1 KR 100747744B1 KR 1020070042357 A KR1020070042357 A KR 1020070042357A KR 20070042357 A KR20070042357 A KR 20070042357A KR 100747744 B1 KR100747744 B1 KR 100747744B1
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interference
sound absorbing
slit
frame
absorbing material
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문태현
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태성이엔씨(주)
엔플랜 주식회사
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0029Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)

Abstract

본 발명은 소음을 차단 및 저감하기 위하여 도로변 및 철로변 등에 설치되는 방음벽의 패널부재중 하나인 흡음형 방음판의 구조에 관한 것이다. 구체적으로는 내부로 소음이 유입되는 전면부에 소음간섭기능을 수행하는 간섭슬릿을 부착함으로써 종래의 흡음형 방음판이 수행하는 소음에너지의 소산기능과 함께 간섭에 의한 소음저감기능까지 수행할 수 있도록 하여 방음판의 흡음성능을 크게 향상시킴과 동시에 다양한 소음원의 주파수별 영역에 대해서도 방음판의 대응력이 우수하게 유지될 수 있도록 하는 것이다.The present invention relates to a structure of a sound absorbing soundproof plate, which is one of the panel members of a soundproof wall installed on a roadside and a railroad side to block and reduce noise. Specifically, by attaching an interference slit for noise interference to the front surface where noise flows into the inside, it is possible to perform noise reduction function due to interference as well as dissipation of noise energy performed by a conventional sound absorbing soundproof panel. In addition, the sound absorbing performance of the soundproof board can be maintained to be excellent in the frequency-specific region of various noise sources.

Description

간섭슬릿이 구비된 흡음형 방음판{The Noise Absorbing Panel which has Sound Interference Slits}Noise absorbing panel with interference slit which has Sound Interference Slits

도 1은 본 발명의 결합 정면도, 배면도, 평면도 및 중앙부 단면도1 is a combined front view, rear view, top view and central section of the present invention.

도 2는 간섭슬릿의 단면도2 is a cross-sectional view of an interference slit

도 3은 흡음재 고정바가 결합된 간섭슬릿의 단면도Figure 3 is a cross-sectional view of the interference slit coupled to the sound absorbing material fixing bar

도 4는 상부 프레임 및 하부 프레임의 단면도4 is a cross-sectional view of the upper frame and the lower frame

도 5는 측면 프레임의 단면도5 is a cross-sectional view of the side frame

도 6은 간섭슬릿의 소음간섭 메커니즘을 설명하는 단면 모식도6 is a schematic cross-sectional view illustrating a noise interference mechanism of an interference slit.

도 7은 본 발명의 정면부 결합 사시도7 is a front perspective view of the combination of the present invention

도 8은 본 발명의 배면부 결합 사시도8 is a perspective view of the rear coupled portion of the present invention

도 9는 본 발명 방음판 4장을 적층한 모습을 표현한 정면부 사시도9 is a perspective view of a front part representing a state in which four sound insulation plates of the present invention are stacked

도 10은 본 발명 방음판 4장을 적층한 모습을 표현한 배면부 사시도10 is a perspective view of the rear part representing a state in which four sound insulation plates of the present invention are laminated;

도 11은 흡음재 고정바가 결합된 간섭슬릿의 사시도11 is a perspective view of the interference slit coupled to the sound absorbing material fixing bar

도 12는 종래의 일반적인 흡음형 방음판의 정면 구성도12 is a front configuration diagram of a conventional general sound-absorbing sound insulation board

도 13은 종래의 일반적인 흡음형 방음판의 사시도13 is a perspective view of a conventional general sound-absorbing sound insulation board

도 14는 종래의 일반적인 흡음형 방음판이 적용된 방음벽 설치 사시도14 is a perspective view of installing a soundproof wall to which a conventional sound-absorbing soundproof plate is applied

도 15는 종래의 간섭장치의 사례도 115 is a diagram illustrating a conventional interference device 1

도 16은 종래의 간섭장치의 사례도 216 is a diagram illustrating a conventional interference device 2

도 17은 종래의 간섭장치가 방음벽의 상단에 설치된 설치 사시도17 is a perspective view of a conventional interference device installed on the top of the soundproof wall

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1. 상부 프레임1. upper frame

1-1. 간섭슬릿 결합부1-1. Interference Slit Coupling

1-2. 배면패널 삽입부1-2. Back panel insert

2. 하부 프레임2. lower frame

2-1. 간섭슬릿 결합부2-1. Interference Slit Coupling

2-2. 배면패널 삽입부2-2. Back panel insert

3. 측면 프레임3. side frame

3-1. 간섭슬릿 결합부3-1. Interference Slit Coupling

3-2. 배면패널 삽입부3-2. Back panel insert

3-3. 지주고정부3-3. Landlord

4. 간섭슬릿4. Interference slit

4-1. 회절공극4-1. Diffraction gap

4-2. 리브4-2. live

4-3. 슬릿본체4-3. Slit Body

4-4. 고정부4-4. Fixture

4-5. 흡음재 고정바 삽입홈4-5. Sound absorbing material fixing bar insertion groove

4-6. 흡음재 고정바4-6. Sound-absorbing material fixing bar

5. 배면 패널5. back panel

6. 흡음재6. Sound absorbing material

본 발명은 소음을 차단 및 저감하기 위하여 도로변 및 철로변 등에 설치되는 방음벽의 패널부재중 하나인 흡음형 방음판의 구조에 관한 것이다.The present invention relates to a structure of a sound absorbing soundproof plate, which is one of the panel members of a soundproof wall installed on a roadside and a railroad side to block and reduce noise.

통상, 흡음형 방음판은 소음의 유입이 가능하도록 전면부에 타공 또는 슬릿가공에 의해 다수개의 통공을 형성하는 전면판 및 상기 전면판과 함께 내부에 공기층 및 흡음재를 감싸는 배면판을 구비하고 측면에 통공을 막아주는 측면판을 구비하는 구조로써, 전면판을 통해 유입된 소음에너지를 내부의 공기층 및 흡음재의 점성에 의해 열에너지로 소산하여 소음의 흡수기능을 수행하게 된다. 또한, 최근에는 방음판의 미관을 향상시키기 위하여 목재형 흡음방음판의 사용이 증가하고 있는데, 이는 전체적으로 창틀 형태의 목재 프레임을 구비하여 프레임의 전면에 소음의 유입이 가능하도록 소정의 간격마다 통공을 구비한 다수의 목재바를 부착하고 배면에는 소음의 누출이 불가능하도록 다수의 목재패널을 밀착시키며 전면 목재바와 배면 목재패널 사이에 공기층 및 흡음재를 삽입하여 소음에너지를 소산하는 기능을 수행하는 구조를 의미한다. In general, the sound absorbing soundproof plate has a front plate which forms a plurality of through holes by perforation or slit processing in the front part to enable the inflow of noise, and a back plate which surrounds the air layer and the sound absorbing material inside the front plate together with a through hole on the side thereof. As a structure having a side plate that prevents, the noise energy introduced through the front plate is dissipated as heat energy by the viscosity of the air layer and sound absorbing material inside to perform the sound absorption function. In addition, in recent years, the use of wooden sound-absorbing soundproof panels have been increasing to improve the aesthetics of soundproof panels, which are generally provided with a window frame-shaped wooden frame, which has a through hole at predetermined intervals to allow noise to flow into the front of the frame. It refers to a structure that attaches a plurality of wood bars and adheres a plurality of wood panels to the back so that noise cannot be leaked, and dissipates noise energy by inserting an air layer and sound absorbing material between the front wood bars and the back wood panels.

또한, 종래의 간섭장치는 방음벽의 상단에 설치되어 방음벽의 상단을 지나는 소음에너지를 간섭함으로써 추가적인 소음저감기능을 수행하는데에 널리 사용되어 왔다. In addition, the conventional interference device has been widely used to perform an additional noise reduction function by installing on the top of the sound barrier to interfere with the noise energy passing through the top of the sound barrier.

그러나, 본 발명과 같이 소음의 간섭기능이 흡음형 방음판에 적용되어 개별 방음판이 간섭저감기능과 에너지 소산기능을 동시에 수행하는 사례는 지금껏 없었다. 소음은 주파수에 따라 각각 다른 파장을 지니고 있으며 흡음재에 의해 소산되는 효율이 높은 주파수 영역도 있지만 또한 간섭에 의해 저감되는 효율이 높은 주파수 영역도 존재하기 마련이다. 특히, 갈수록 교통수단이 다양화되고 소음원의 주파수별 특성이 다양해지는 추세에는 흡음형 방음판이 단순히 에너지 소산에 의한 소음흡수기능만으로는 효율적인 소음저감을 제대로 실현하기는 무척 어려워지고 있다. However, there has never been a case where the interference function of the noise is applied to the sound absorbing soundproof panel as in the present invention so that the individual soundproof panels simultaneously perform the interference reduction function and the energy dissipation function. Noise has different wavelengths according to frequency, and there are high frequency ranges that are dissipated by sound absorbing materials, but also high frequency ranges that are reduced by interference. In particular, in the trend of more diversified means of transportation and varying frequency characteristics of noise sources, it is very difficult for sound-absorbing sound insulation boards to realize efficient noise reduction by simply absorbing energy by energy dissipation.

이에 본 발명은 방음판의 내부로 소음이 유입되는 전면부에 소음간섭기능을 수행하는 간섭슬릿을 부착함으로써 종래의 흡음형 방음판이 수행하는 소음에너지의 소산기능과 함께 간섭효과에 의한 소음저감기능까지 동시에 수행할 수 있도록 하여 방음판의 흡음성능을 크게 향상시킴과 동시에 다양한 소음원의 주파수별 영역에 대해서도 방음판의 대응력이 우수하게 유지될 수 있는 기술을 제공한다.Therefore, the present invention attaches an interference slit to perform noise interference function on the front surface where noise is introduced into the soundproof panel, thereby simultaneously dissipating the noise energy performed by the conventional sound absorbing soundproof panel together with the noise reduction function due to the interference effect. It is possible to greatly improve the sound absorbing performance of the sound insulation board, and at the same time provides a technology that can maintain the soundproof board excellent response to the frequency-specific region of various noise sources.

상기한 목적을 위한 본 발명 '간섭슬릿이 구비된 흡음형 방음판'의 구성을 도면과 함께 설명하자면, 길이방향으로 동일한 단면을 지니고 내부에 하나 이상의 공간이 형성되도록 폐합된 형상을 지님으로써 결과적으로 내부에 통공을 구비한 1개의 상부 프레임(1)과 1개의 하부 프레임(2) 및 2개의 측면 프레임(3)이 1조의 창틀을 구성하게 된다. 또한, 상기 1조의 창틀을 이루는 각각의 프레임의 내부 통공의 형상은 배면패널(5)과 흡음재(6), 간섭슬릿(4)의 순서로 창틀에 효과적으로 부착 및 지지될 수 있도록 'T'형상을 지니게 된다. 또한, 상기 1조의 창틀에서 소음이 유입되는 전면에는 다수의 간섭슬릿(4)이 상하 방향으로 소정의 간격을 두고 부착되며, 상기 창틀의 배면부에는 1개 내지는 다수 개로 분할된 배면 패널(5)이 창틀의 배면에 부착되거나 창틀의 내측면에 있는 삽입부(1-2,2-2,3-2)에 삽입되어 고정되도록 하며, 또한 상기 창틀과 간섭슬릿(4) 및 배면패널(5)에 의해 차폐되는 내부의 공간에는 흡음재(6)를 삽입하게 되는 구조를 제공한다.
구체적으로는, 상하 방향으로 경사면을 형성하는 슬릿본체(4-3)의 하향면을 따라 소정간격으로 다수의 회절공극(4-1)이 형성될 수 있도록 다수의 리브(4-2)를 구비하며 슬릿본체(4-3)의 끝단에는 창틀의 상부 프레임(1) 또는 하부 프레임 또는 측면 프레임(3)의 간섭슬릿 결합부(1-1,2-1,3-1)에 부착되어 고정되는 고정부(4-4)를 구비한 간섭슬릿(4)과; 상기 간섭슬릿(4)이 상하 방향으로 소정의 간격을 이루며 다수개가 부착될 수 있도록 하기 위하여 내부에 통공을 구비하고 통공의 형상이 전체적으로 'T'형상을 지닌 상부 프레임(1) , 하부 프레임(2) 및 측면 프레임(3)에 의해 형성되는 1조의 창틀과; 상기 창틀의 배면에 부착되거나 배면패널 삽입부(1-2,2-2,3-2)에 1개 내지는 소정의 간격으로 다수개가 밀착되어 삽입되는 배면 패널(5)과; 상기 창틀과 간섭슬릿(4) 및 배면 패널(5)에 의해 차폐되는 내부의 공간에 삽입되는 흡음재(6)를 제공한다.
Referring to the configuration of the present invention 'absorption soundproof soundproof plate provided with interference slit' for the above purpose with a drawing, having the same cross-section in the longitudinal direction and having a closed shape so that at least one space is formed therein as a result One upper frame 1, one lower frame 2, and two side frames 3 having through holes constitute a set of window frames. In addition, the shape of the inner through-hole of each frame constituting the set of the window frame has a 'T' shape so as to be effectively attached and supported to the window frame in the order of the rear panel 5, the sound absorbing material 6, the interference slit (4). Will be carried. In addition, a plurality of interference slits 4 are attached to the front surface at which noise is introduced from the set of window frames at predetermined intervals in the vertical direction, and the rear panel 5 divided into one or more pieces is formed on the rear portion of the window frame. It is attached to the rear surface of the window frame or is inserted into and fixed to the insertion parts (1-2, 2-2, 3-2) on the inner side of the window frame, and also to the window frame, the interference slit (4) and the rear panel (5). It provides a structure in which the sound absorbing material 6 is inserted into the interior space shielded by.
Specifically, a plurality of ribs 4-2 are provided to form a plurality of diffraction voids 4-1 at predetermined intervals along the downward surface of the slit body 4-3 forming the inclined surface in the vertical direction. At the end of the slit body (4-3) is fixed to the interference slit coupling portion (1-1,2-1,3-1) of the upper frame (1) or lower frame or side frame (3) of the window frame An interference slit 4 having a fixing portion 4-4; In order to allow the interference slit 4 to be attached at a predetermined interval in the vertical direction, the upper frame 1 and the lower frame 2 having a through-hole and having a 'T' shape as a whole. And a set of window frames formed by the side frame 3; A rear panel (5) attached to the rear surface of the window frame or inserted into a plurality of the rear panel inserts (1-2, 2-2, 3-2) in close contact with each other at predetermined intervals; A sound absorbing material 6 is inserted into an interior space shielded by the window frame, the interference slit 4 and the back panel 5.

구체적으로는, 상하 방향으로 경사면을 형성하는 슬릿본체(4-3)의 하향면을 따라 소정간격으로 다수의 회절공극(4-1)이 형성될 수 있도록 다수의 리브(4-2)를 구비하며 슬릿본체(4-3)의 끝단에는 창틀의 상부, 하부 및 측면 프레임(3)의 간섭 슬릿 결합부(1-1,2-1,3-1)에 부착되어 고정되는 고정부(4-4)를 구비한 간섭슬릿(4)과; 상기 간섭슬릿(4)이 상하 방향으로 소정의 간격을 이루며 다수개가 부착될 수 있도록 하기 위하여 내부에 통공을 구비하고 전체적으로 'T'형상을 지닌 상부 프레임(1), 하부 프레임(2) 및 측면 프레임(3)에 의해 형성되는 1조의 창틀과; 상기 창틀의 배면에 부착되거나 배면패널 삽입부(1-2,2-2,3-2)에 1개 내지는 소정의 간격으로 다수개가 밀착되어 삽입되는 배면 패널(5)과; 상기 창틀과 간섭슬릿(4) 및 배면 패널(5)에 의해 차폐되는 내부의 공간에 삽입되는 흡음재(6)를 제공한다.Specifically, a plurality of ribs 4-2 are provided to form a plurality of diffraction voids 4-1 at predetermined intervals along the downward surface of the slit body 4-3 forming the inclined surface in the vertical direction. And the end of the slit body (4-3) is fixed to the fixing part (4-, attached to the interference slit coupling portion (1-1,2-1,3-1) of the upper, lower and side frame 3 of the window frame An interference slit 4 having 4); In order to allow the interference slits 4 to be attached at a predetermined interval in the vertical direction, the upper frame 1, the lower frame 2, and the side frame are provided with a through-hole and have a 'T' shape as a whole. A set of window frames formed by (3); A rear panel (5) attached to the rear surface of the window frame or inserted into a plurality of the rear panel inserts (1-2, 2-2, 3-2) in close contact with each other at predetermined intervals; A sound absorbing material 6 is inserted into an interior space shielded by the window frame, the interference slit 4 and the back panel 5.

또한, 상기 간섭슬릿(4)의 고정부(4-4)의 중앙에 흡음재 고정바(4-6)를 슬라이딩끼움 방식으로 삽입할 수 있도록 'T'형상의 흡음재 고정바 삽입홈(4-5)을 구비하며, 상기 흡음재 고정바 삽입홈(4-5)에 슬라이딩끼움 방식으로 삽입되어 내부 흡음재(6)의 움직임을 방지하도록 'I'형상을 지닌 흡음재 고정바(4-6)를 제공할 수 있다.In addition, the sound absorbing material fixing bar insertion groove (4-5) of the 'T' shape to insert the sound absorbing material fixing bar (4-6) in the center of the fixing portion (4-4) of the interference slit (4) by sliding fitting method And a sound absorbing material fixing bar 4-6 having a 'I' shape to be inserted into the sound absorbing material fixing bar insertion groove 4-5 in a sliding fitting manner to prevent movement of the internal sound absorbing material 6. Can be.

본 발명은 방음판의 내부로 소음이 유입되는 전면부에 소음간섭기능을 수행하는 간섭슬릿을 부착함으로써 종래의 흡음형 방음판이 수행하는 소음에너지의 소산기능과 함께 간섭효과에 의한 소음저감기능까지 동시에 수행할 수 있도록 하여 방음판의 흡음성능을 크게 향상시킴과 동시에 다양한 소음원의 주파수별 영역에 대해서도 방음판의 대응력이 우수하게 유지될 수 있게 된다.The present invention attaches an interference slit that performs a noise interference function on the front surface of the noise inflowing sound panel, and simultaneously performs a noise reduction function due to the interference effect together with the dissipation function of the noise energy performed by the conventional sound absorbing soundproof panel. It is possible to greatly improve the sound absorbing performance of the sound insulation board, and at the same time it is possible to maintain a good response to the sound insulation board in the frequency-specific region of various noise sources.

특히, 본 발명은 간섭슬릿의 리브(4-2)의 길이 및 수량을 조절함으로써 특정 주파수영역에서의 소음을 집중적으로 간섭저감할 수 있으므로 주파수별 특성에 따 른 소음저감방식을 다양하게 설계할 수 있게 된다.In particular, the present invention can intensively reduce noise in a specific frequency region by adjusting the length and quantity of the ribs 4-2 of the interference slit, so that various noise reduction schemes according to the characteristics of each frequency can be designed. Will be.

또한, 본 발명은 간섭슬릿 및 창틀을 구성하는 프레임의 색상을 다양하게 함으로써 방음판의 경관을 향상시킬 수 있으며 돌출되는 간섭슬릿으로 인해 방음판의 입체적인 미관을 얻을 수도 있다. In addition, the present invention can improve the view of the soundproof panel by varying the color of the frame constituting the interference slit and the window frame, it is possible to obtain a three-dimensional aesthetic of the soundproof plate due to the protruding interference slit.

Claims (2)

상하 방향으로 경사면을 형성하는 슬릿본체(4-3)의 하향면을 따라 소정간격으로 다수의 회절공극(4-1)이 형성될 수 있도록 다수의 리브(4-2)를 구비하며 슬릿본체(4-3)의 끝단에는 창틀의 상부프레임 또는 하부프레임 또는 측면 프레임(3)의 간섭슬릿 결합부(1-1,2-1,3-1)에 부착되어 고정되는 고정부(4-4)를 구비한 간섭슬릿(4)과; 상기 간섭슬릿(4)이 상하 방향으로 소정의 간격을 이루며 다수개가 부착될 수 있도록 하기 위하여 내부에 통공을 구비하고 통공의 형상이 전체적으로 'T'형상을 지닌 상부 프레임(1), 하부 프레임(2) 및 측면 프레임(3)에 의해 형성되는 1조의 창틀과; 상기 창틀의 배면에 부착되거나 배면패널 삽입부(1-2,2-2,3-2)에 1개 내지는 소정의 간격으로 다수개가 밀착되어 삽입되는 배면 패널(5)과; 상기 창틀과 간섭슬릿(4) 및 배면 패널(5)에 의해 차폐되는 내부의 공간에 삽입되는 흡음재(6)를 포함하는 것을 특징으로 하는 '간섭슬릿이 구비된 흡음형 방음판'A plurality of ribs 4-2 are provided to form a plurality of diffraction voids 4-1 at predetermined intervals along a downward surface of the slit body 4-3, which forms an inclined surface in the vertical direction. 4-3) is fixed to the interference frame slit coupling portion (1-1,2-1,3-1) of the upper frame or lower frame or side frame (3) of the window frame fixed to the end (4-4) Interference slit 4 with; In order to allow the interference slit 4 to be attached at a predetermined interval in the vertical direction, the upper frame 1 and the lower frame 2 are provided with a through hole and the shape of the through hole has a 'T' shape as a whole. And a set of window frames formed by the side frame 3; A rear panel (5) attached to the rear surface of the window frame or inserted into a plurality of the rear panel inserts (1-2, 2-2, 3-2) in close contact with each other at predetermined intervals; 'Sound absorbing soundproof plate with interference slit' characterized in that it comprises a sound absorbing material (6) inserted into the interior space shielded by the window frame, the interference slit (4) and the back panel (5). 청구항 1에 있어서, 상기 간섭슬릿(4)의 고정부(4-4)의 중앙에 흡음재 고정바(4-6)를 슬라이딩끼움 방식으로 삽입할 수 있도록 'T'형상의 흡음재 고정바 삽입 홈(4-5)를 구비하며, 상기 흡음재 고정바 삽입홈(4-5)에 슬라이딩끼움 방식으로 삽입되어 내부 흡음재(6)의 움직임을 방지하도록 'I'형상을 지닌 흡음재 고정바(4-6)를 포함하는 것을 특징으로 하는 '간섭슬릿이 구비된 흡음형 방음판'The method according to claim 1, 'T' shaped sound absorbing material fixing bar insertion groove (to insert the sound absorbing material fixing bar 4-6 in the center of the fixing portion 4-4 of the interference slit 4 in a sliding fitting manner ( 4-5), the sound absorbing material fixing bar (4-6) having a 'I' shape is inserted into the sound absorbing material fixing bar insertion groove (4-5) to prevent movement of the internal sound absorbing material (6). Sound-absorbing soundproof board with interference slit, characterized in that it comprises a
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Publication number Priority date Publication date Assignee Title
KR101272068B1 (en) * 2010-07-14 2013-06-14 동원엔지니어링(주) Wing type remodeling device and method for soundproof wall
KR101272067B1 (en) * 2010-07-14 2013-06-14 동원엔지니어링(주) Wing type diffraction noise reduction device, soundproof panel and wall using it
KR200470229Y1 (en) 2012-02-17 2013-12-04 주식회사 신성유니텍 Frame Structure for Soundproof Panel
CN109837843A (en) * 2019-03-20 2019-06-04 济南大学 A kind of grating sign board and its manufacturing method
US20220081855A1 (en) * 2018-12-06 2022-03-17 Wavebreaker Ab Interference noise-control unit

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KR100358701B1 (en) * 1999-12-31 2002-11-04 주식회사 건양기술공사 건축사사무소 Sound arresting plate

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101272068B1 (en) * 2010-07-14 2013-06-14 동원엔지니어링(주) Wing type remodeling device and method for soundproof wall
KR101272067B1 (en) * 2010-07-14 2013-06-14 동원엔지니어링(주) Wing type diffraction noise reduction device, soundproof panel and wall using it
KR200470229Y1 (en) 2012-02-17 2013-12-04 주식회사 신성유니텍 Frame Structure for Soundproof Panel
US20220081855A1 (en) * 2018-12-06 2022-03-17 Wavebreaker Ab Interference noise-control unit
US12325966B2 (en) * 2018-12-06 2025-06-10 Wavebreaker Ab Interference noise-control unit
CN109837843A (en) * 2019-03-20 2019-06-04 济南大学 A kind of grating sign board and its manufacturing method
CN109837843B (en) * 2019-03-20 2021-04-09 济南大学 A grating sign and its manufacturing method

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