WO2011111890A1 - Matériau absorbant et isolant acoustique élastique transparent - Google Patents

Matériau absorbant et isolant acoustique élastique transparent Download PDF

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Publication number
WO2011111890A1
WO2011111890A1 PCT/KR2010/001547 KR2010001547W WO2011111890A1 WO 2011111890 A1 WO2011111890 A1 WO 2011111890A1 KR 2010001547 W KR2010001547 W KR 2010001547W WO 2011111890 A1 WO2011111890 A1 WO 2011111890A1
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WO
WIPO (PCT)
Prior art keywords
sound
absorbing
plate
sound absorbing
transparent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/001547
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English (en)
Korean (ko)
Inventor
권유미
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/KR2010/001547 priority Critical patent/WO2011111890A1/fr
Publication of WO2011111890A1 publication Critical patent/WO2011111890A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0064—Perforated plate or mesh, e.g. as wall facing
    • E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
    • 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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • 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
    • E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members

Definitions

  • the present invention relates to a transparent sound absorbing and soundproofing body having an elastic force that reduces noise and at the same time blocks the noise.
  • the sound absorbing body and the soundproofing body are made of transparent plates, so that they are spaced apart at regular intervals to form a sound absorbing space and a cobweb shape on the sound absorbing body. It is equipped with a noise inflow path, so that outside noise flows into the sound absorbing space through the noise inflow path formed in the sound absorbing body, and is absorbed elastically, and part of the sound is absorbed by the soundproofing body to dramatically reduce noise pollution, thereby creating a pleasant living environment. It relates to a transparent sound absorbing and soundproofing body having an elastic force to enable.
  • sound absorption refers to absorbing sound generated from a sound source and reducing its size
  • soundproofing / soundproofing simply blocks the sound generated from the sound source to change the flow of sound, thereby reducing the transmission of sound to the rear of the soundproofing body.
  • a sound absorbing body or a sound absorbing body is selectively installed in a place where various musical instruments or songs are handled, or where damage is expected due to high speed / roadsides or other noise around a residential area.
  • the sound absorbing and soundproofing were mainly performed by using glass fiber, rock wool or the like, or using a plate or a thin film.
  • a "sound absorbing body” (hereinafter, referred to as "prior art") of Korean Utility Model Registration No. 20-0292648 published by the present applicant is widely known.
  • 112 has a frame 100 having an air layer 111 therein, a central plate 121 formed on the front surface of the air plate 111 and recessed by the air layer 111, and a circumference of the center plate 121 and a circumference of the periphery thereof.
  • the sound absorbing body composed of a diaphragm 102 consisting of an opening portion 123 formed so as to be mounted, and a rear sound absorbing plate 103 mounted to the rear of the frame 100 to absorb sound waves passing through the air layer 111,
  • the inner side surface of the side wall 112, which is an inner circumference of the air layer 111, is provided with a side sound absorbing plate 104 having a porous portion, and at least one absorbing through hole 105 is disposed at an outer front circumference of the curved plate 221. Formed,
  • the side wall 112 has a through hole 106 formed therein so as to obtain a sound absorbing effect through the side sound absorbing plate 104 provided inside the other sound absorbing body, and the sound wave inside each corner in front of the sound absorbing body.
  • An inflow through-hole 107 is formed to inflow,
  • the center of the rear sound absorbing plate 103 is relatively shorter than the width of the side wall length of the support rod 108 is mounted so that the central plate 121 constituting the diaphragm is fixed to the end of the support rod 108 to be relatively,
  • the volume of the air layer 111 is expanded to amplify the spring vibration phenomenon to extinguish the sound waves, and the rear and side sound absorbing plates 103 and 104 are made of a sponge or glass fiber or rock wool that absorbs sound waves through the porous part.
  • the sound wave introduced into the diaphragm 102 first causes a vortex phenomenon along the curved plate 221 to increase the sound absorbing area to obtain a sound absorbing effect, and the incoming sound wave shakes finely through the curved plate.
  • the spring vibration phenomenon in the air layer is made of a structure that consumes the energy of the sound wave to absorb the sound.
  • the sound-absorbing portion that absorbs sound energy is composed of most non-transparent materials such as sponge, glass fiber, or rock wool, which obstructs the view around the sound absorbing body, making it very frustrating.
  • the area of the air layer becomes smaller toward the inside, there is a problem that the sound energy introduced into the interior also decreases, so that the sound absorbing and soundproofing effects are somewhat reduced.
  • sound absorption means to absorb and dissipate sound energy
  • various types of sound absorbing plates depending on the material and method, but there are no transparent sound absorbing plates having good visibility of the front and rear sides.
  • the transparent plate used in the present invention has only a soundproofing / soundproofing plate that reflects and blocks sound waves, and the conventional transparent sound absorbing plate is also used as a sound absorbing plate by drilling a fine hole in a transparent resin sheet.
  • this also has a weak sound absorbing effect is not a sound absorbing plate is expensive and the situation is used only in special places.
  • a transparent sound absorbing plate for the road is attached to a sound absorbing material having a certain width on the inner rim of the transparent plate so that the impact sound waves generated from the front hit the transparent plate, and only a part of the sound absorbing material attached to the inner rim of the frame is absorbed.
  • a sound absorbing plate is used, but this also has a very low sound absorbing effect.
  • the sound absorbing effect is increased as the area of the side of the sound absorbing material is increased, but there is no practical value as a transparent sound absorbing plate, and the method of increasing the sound absorbing effect to the minimum area is not known yet. to be.
  • the present invention has been made to solve the above problems, the sound-absorbing plate and the sound-absorbing plate made of a transparent material such as acrylic plate of synthetic resin spaced at a predetermined interval through the sound-absorbing frame to form a sound-absorbing space portion and the sound into the sound-absorbing space portion It is an object of the present invention to provide a transparent sound absorbing / sound absorbing body which can secure energy so that the sound absorbing and soundproofing can be made by introducing energy, and the front and rear surfaces of the sound absorbing / soundproofing body can be easily seen.
  • a transparent sound absorbing / sound absorbing body which can secure energy so that the sound absorbing and soundproofing can be made by introducing energy, and the front and rear surfaces of the sound absorbing / soundproofing body can be easily seen.
  • Transparent sound-absorbing and sound-proofing body having an elastic force of the present invention for achieving the above object is made of a transparent acrylic synthetic resin plate but the cobweb-shaped sound inflow passage 11 and the long hole-shaped sound inflow passage 12 and the circular sound inflow passage ( 13) is provided with a sound-absorbing plate 14, a transparent acrylic synthetic resin plate to block the sound energy / sound insulation plate 15, and the sound-absorbing plate 14 and the sound-proof plate 15 at a predetermined interval It is composed of a rectangular frame 17 installed to form a sound absorbing space portion 16 inside the bran and a sound absorbing material 18 provided to the inside of each wall of the rectangular frame 17 to absorb and dissipate sound energy. To be characterized.
  • the transparent sound absorbing and soundproofing body having elastic force can maximize the utility by making the sound absorbing and soundproofing parts transparent and made of acrylic plate of synthetic resin so that the sound absorbing / soundproofing body can be easily seen.
  • the sound absorbing efficiency is increased, and sound absorption efficiency is increased by increasing the sound energy inflow area as the cobweb shape is diverted from the center to the outside.
  • By absorbing the sound absorbing plate through the sound energy and elastically vibrating some sound energy is converted into the vibration energy to obtain the effect of further improving the sound absorption efficiency.
  • FIG. 1 is a perspective view of a transparent sound absorbing and sound insulating body having elastic force according to the present invention
  • FIG. 2 is an exploded perspective view of the transparent sound absorbing and sound insulating body having an elastic force according to the present invention
  • FIG. 3 is an enlarged view of the sound absorbing plate of the transparent sound absorbing and sound insulating body having elastic force according to the present invention
  • FIG. 4 is a rear view of the sound absorption plate of FIG.
  • FIG. 5 is a state diagram showing a path in which sound energy enters and disappears into the transparent sound absorbing and soundproofing body having elastic force according to the present invention
  • FIG. 6 is a state diagram showing another embodiment of the sound absorption plate according to the present invention.
  • FIG. 7 is a perspective view showing a state in which a plurality of transparent sound absorbing and soundproofing bodies having elastic force according to the present invention are installed and applied in multiple layers,
  • FIG. 8 is a sectional view 8a and a perspective view 8b of a conventional sound absorbing body.
  • FIG. 1 is a perspective view of a transparent sound absorbing and sound insulating body having an elastic force according to the present invention
  • Figure 2 is an exploded perspective view of a transparent sound absorbing and sound insulating body having an elastic force according to the present invention
  • Figure 3 has an elastic force according to the present invention 4 is an enlarged view of the sound absorbing plate of the transparent sound absorbing and soundproofing body
  • FIG. 4 is a rear view of the sound absorbing plate of FIG. 3
  • FIG. 5 is a state diagram showing the path of sound energy being introduced into and disappeared into the transparent sound absorbing and soundproofing body having elastic force according to the present invention
  • 6 is a state diagram showing another embodiment of the sound absorbing plate according to the present invention
  • FIG. 1 is a perspective view of a transparent sound absorbing and sound insulating body having an elastic force according to the present invention
  • FIG. 4
  • FIG. 7 is a perspective view showing a state in which a plurality of transparent sound absorbing and sound absorbing bodies having elastic force according to the present invention are installed in a plurality or multiple layers
  • FIG. 8 is a perspective view and a sectional view of a conventional sound absorbing body.
  • the transparent sound absorbing and sound absorbing body 10 having elastic force according to the present invention As shown in FIGS. 1 and 2, the transparent sound absorbing and sound absorbing body 10 having elastic force according to the present invention,
  • Sound absorbing plate (14) which is made of a transparent acrylic synthetic resin board and is provided with a cobweb-shaped sound inflow passage (11), a long hole-shaped sound inflow passage (12), and a circular sound inflow passage (13),
  • Soundproof plate 15 which is made of a transparent acrylic synthetic resin board to block / sound-proof sound energy
  • Square frame 17 is installed so that the sound-absorbing space portion 16 is formed inside the sound-absorbing plate 14 and the sound-proof plate 15 at regular intervals, and
  • It is composed of a sound absorbing material 18 provided on the inside of each wall of the square frame 17 to absorb and dissipate sound energy.
  • the sound inflow passage 11 is formed in a cobweb shape, but is formed in a diverging form that gradually opens from the center to the outside, and the start point and the end point are provided with through holes 19 and 20, respectively, and the sound absorption plate 14 has an external impact.
  • the sound inflow passage 12 is formed of a long hole (hole), but a plurality of in series is formed at the edge of the sound-absorbing plate 14 in a line to all the sound energy introduced into the square frame (17) is absorbed by the sound absorbing material 18 provided on the inside to be extinguished, and the sound inflow passage 13 is made of a circular hole, each formed at the corner of the sound absorbing plate 14, all the incoming sound energy The sound absorbing material 18 provided inside the square frame 17 is absorbed and extinguished.
  • the sound inflow passage 11 formed in the form of a cobweb may have a structure in which one or more places are provided, and it is preferable to operate a pair of four.
  • the long hole-type sound inflow passage 12 and the circular sound inflow passage 13 is not limited to its long hole type or circular shape, respectively.
  • the back surface of the sound absorbing plate 14 is provided with a reinforcing support 21 for reinforcing the elastic force of the sound absorbing plate 14 in the cross-sectional center portion in the shape of a cross, and on the outside of the back surface of the sound absorbing plate 14 A sound absorbing material support 22 is provided to support the sound absorbing material 18 so as not to be separated.
  • the sound absorbing material support 22 for supporting the sound absorbing material 18 so as not to be separated from the inner surface outer portion of the soundproof plate 12 is provided.
  • water discharge grooves 23 are formed in the longitudinal direction in each wall of the rectangular frame 17 so that rain water may flow without stagnation, and the water provided in the bottom wall of the rectangular frame 17.
  • the discharge groove 23 has a structure in which at least one water discharge hole 24 is formed. Therefore, the water flowing along the water discharge groove 23 is discharged and flows out from the outside of the square frame 17 and the water, which is accumulated due to moisture, is discharged to the outside along the water discharge hole 24. It is supposed to be.
  • the sound inlet passage 11 of the cobweb shape provided in the sound absorbing plate 14 is made of a shape in which a plurality of single passages (11a) diverging at a predetermined interval, as shown in FIG.
  • Single passage (11a) is formed as a line graph while being connected by a bending node, but the angle of each node is formed as an obtuse angle is made of a gradually diverging shape, the bending node formed in the single passage (11a) is the innermost It is configured to form linearly (between the lines AB in Fig. 3) gradually increasing from the folding node to the outermost folding node.
  • the single passages (11a) have a structure that each diverges at a predetermined interval based on the center of the cobweb shape. Therefore, it is firmly supported by external strong sound energy or wind power, so that durability can be further improved.
  • the single passage 11a is not limited to the shape formed by the obtuse angle, but forms a divergent form while diverging at a right angle (FIG. 6B) or diverges while forming a circular shape without the oblique angle (FIG. 6C). It can be configured to achieve a) and can be configured in a diverging shape to be made in a variety of other shapes other than that.
  • reference numeral 25 denotes a bracket fastened at each corner to form the square frame 17.
  • Transparent sound-absorbing and sound-absorbing body 10 having the elastic force of the present invention configured as described above is configured to fasten the square frame 17 by using the bending portion 25 and then the sound absorbing material on each inner wall of the square frame 17. (18) Fit. Subsequently, when the sound insulation plate 15 is mounted on the rear surface and the sound absorption plate 14 is mounted on the front surface, the sound absorbing material 18 is formed by the sound absorbing material support 22 provided on the rear surface of each plate 14, 15. ) Is firmly supported and completed, and this assembly order can be done first.
  • the transparent sound absorbing and sound insulating body 10 having the elastic force may be connected to a plurality of lines in a line (FIG. 7A) or stacked in a plurality of layers (FIG. 7B) to form a transparent soundproof wall.
  • a line FIG. 7A
  • stacked in a plurality of layers FIG. 7B
  • the transparent sound-absorbing and sound-proof body 10 having the elastic force of the present invention as described above in the general / highway road, the loud sound energy generated from the vehicle is reduced and transmitted when delivered to the apartment or residential area located nearby 5, the loud sound energy in the road or the like enters the sound absorbing space portion 16 through the sound inflow passage 11 formed in the sound absorbing plate 14 from the 'going' direction. do.
  • the sound absorption plate 14 vibrates back and forth elastically, which refers to a phenomenon in which part of the sound energy disappears as the sound energy is converted into vibration energy.
  • the sound energy introduced into the sound absorbing space 16 is soundproofed by being reflected from the soundproof plate 15, and then the reflected sound energy is transmitted to the respective sound absorbing materials 18 after being hit by the sound absorbing plate 14. As the size is reduced, the reduced sound energy is transmitted in the 'I' direction where the apartment is located.
  • the sound energy introduced into the long hole-type sound inflow passage 12 and the circular sound inflow passage 13 is absorbed by the sound absorbing material 18 and reduced.
  • Sound energy generated from the sound source is absorbed and soundproofed through the sound energy transfer procedure as described above.
  • the sound absorbing body or sound absorbing body has been tested by an accredited certification body and is utilized by receiving a blocking performance (damping rate) or sound absorbing performance (absorption rate).
  • the transparent sound absorbing and soundproofing body having elasticity according to the present invention (10, hereinafter 'the main body') Technology ') and the present application filed by the present applicant to the Korean Institute of Construction Technology.
  • the average attenuation rate of main frequency (250,500,1000,2000) of the present technology and the present technology and the prior art is 32.7dB of the present technology and 35.2dB of the prior art, which are both It is found that it is over 30dB and shows a good attenuation rate.
  • the average sound absorption rate of the main technology (250, 500, 1000, 2000) of the present technology and the prior art is 70.5% of the present technology and 54% of the prior art, and it can be seen that the sound absorption effect of the present technology is markedly high. .
  • the present technology although the sound insulation effect does not show much difference from the prior art, it can be seen that the sound absorption effect is superior to the prior art bar, which is the sound absorption efficiency of the present invention is remarkable compared to the prior art It is excellent so that the effect of dramatically reducing the sound energy can be obtained.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

L'invention porte sur un matériau absorbant et isolant acoustique élastique transparent configuré pour réduire et bloquer le bruit. Le matériau absorbant et isolant acoustique de la présente invention comprend : une plaque d'absorption acoustique constituée d'une plaque en résine synthétique acrylique transparente et comprenant un passage d'entrée de son en forme de toile d'araignée, un passage d'entrée de son en forme de trou profond, et un passage d'entrée de son circulaire ; une plaque d'isolation acoustique constituée d'une plaque en résine synthétique acrylique transparente pour le blocage/l'isolation contre une énergie acoustique ; un cadre rectangulaire installé de façon à former un espace d'absorption acoustique par positionnement de la plaque d'absorption acoustique et de la plaque d'isolation acoustique à une distance prédéterminée l'une de l'autre ; et un matériau d'absorption acoustique disposé à l'intérieur de chaque paroi du cadre rectangulaire pour absorber et dissiper l'énergie acoustique. Le bruit externe est absorbé élastiquement et une partie du bruit externe est bloquée par la plaque d'isolation acoustique lorsque le bruit externe circule dans l'espace d'absorption acoustique à travers les passages d'entrée de son de la plaque d'absorption acoustique. De la manière mentionnée ci-dessus, la pollution acoustique peut être significativement réduite afin de fournir un cadre de vie confortable.
PCT/KR2010/001547 2010-03-12 2010-03-12 Matériau absorbant et isolant acoustique élastique transparent Ceased WO2011111890A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2010/001547 WO2011111890A1 (fr) 2010-03-12 2010-03-12 Matériau absorbant et isolant acoustique élastique transparent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2010/001547 WO2011111890A1 (fr) 2010-03-12 2010-03-12 Matériau absorbant et isolant acoustique élastique transparent

Publications (1)

Publication Number Publication Date
WO2011111890A1 true WO2011111890A1 (fr) 2011-09-15

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PCT/KR2010/001547 Ceased WO2011111890A1 (fr) 2010-03-12 2010-03-12 Matériau absorbant et isolant acoustique élastique transparent

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111705688A (zh) * 2020-07-16 2020-09-25 深圳市双禹王声屏障工程技术有限公司 一种l型半封闭隔音屏
CN112482276A (zh) * 2020-11-16 2021-03-12 赵龙龙 一种市政公路隔离带
CN112728751A (zh) * 2021-01-18 2021-04-30 宁夏重立机械制造有限公司 一种具有响度监测可分级处理的消声设备
CN112922254A (zh) * 2021-04-06 2021-06-08 佛山欧远声学建材有限公司 可变弧形穿孔吸音板

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200292648Y1 (ko) * 2002-07-03 2002-10-25 권유미 흡음체
KR20030045228A (ko) * 2001-12-01 2003-06-11 권유미 흡음체와 그 제조방법
KR200349709Y1 (ko) * 2003-12-03 2004-05-10 배국순 금속판 재 및 합성수지판 재, 천 류를 사용한 흡음판 재
KR20050117182A (ko) * 2004-06-10 2005-12-14 에이텍 산업 주식회사 흡음 투명 방음판

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030045228A (ko) * 2001-12-01 2003-06-11 권유미 흡음체와 그 제조방법
KR200292648Y1 (ko) * 2002-07-03 2002-10-25 권유미 흡음체
KR200349709Y1 (ko) * 2003-12-03 2004-05-10 배국순 금속판 재 및 합성수지판 재, 천 류를 사용한 흡음판 재
KR20050117182A (ko) * 2004-06-10 2005-12-14 에이텍 산업 주식회사 흡음 투명 방음판

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111705688A (zh) * 2020-07-16 2020-09-25 深圳市双禹王声屏障工程技术有限公司 一种l型半封闭隔音屏
CN112482276A (zh) * 2020-11-16 2021-03-12 赵龙龙 一种市政公路隔离带
CN112728751A (zh) * 2021-01-18 2021-04-30 宁夏重立机械制造有限公司 一种具有响度监测可分级处理的消声设备
CN112922254A (zh) * 2021-04-06 2021-06-08 佛山欧远声学建材有限公司 可变弧形穿孔吸音板

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