CN111622367B - Noise reduction device for sound absorption of recording studio - Google Patents

Noise reduction device for sound absorption of recording studio Download PDF

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Publication number
CN111622367B
CN111622367B CN202010528613.8A CN202010528613A CN111622367B CN 111622367 B CN111622367 B CN 111622367B CN 202010528613 A CN202010528613 A CN 202010528613A CN 111622367 B CN111622367 B CN 111622367B
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China
Prior art keywords
resonance
sound
noise reduction
board
noise
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Expired - Fee Related
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CN202010528613.8A
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Chinese (zh)
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CN111622367A (en
Inventor
刘燕
韩雪
刘婷
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Henan University of Technology
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Henan University of Technology
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Publication of CN111622367A publication Critical patent/CN111622367A/en
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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
    • 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
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • 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
    • 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
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E04B2001/8471—Solid slabs or blocks layered with non-planar interior transition surfaces between layers, e.g. faceted, corrugated

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The invention provides a noise reduction device for sound absorption of a recording studio, which solves the problem that a good silence construction scheme is greatly influenced by the room pattern in the traditional silence engineering construction, and comprises a grid frame detachably and fixedly connected with a wall surface and/or the ground, wherein the noise reduction device comprises a shell, the side surface of the shell and the inner side surface of a hole or a hole formed by the grid frame are provided with detachable fixing devices which are matched with each other to form a detachable fixing structure of the noise reduction device, the shell forms a cavity for fixedly mounting noise reduction units, microporous noise reduction plates which are arranged at intervals in an array and are arranged in a suspended way are fixedly mounted in the cavity, the microporous noise reduction plates arranged in the array form array noise reduction plate units, and further comprises a resonance plate made of a sheet material, the array noise reduction plate units are positioned at the two side surfaces of the resonance plate, and each microporous noise reduction plate is fixedly connected with the resonance plate through rigid fixing pins, the resonance plate is fixedly arranged and fixedly connected with the inner wall of the cavity.

Description

Noise reduction device for sound absorption of recording studio
Technical Field
The invention relates to a sound absorption and noise reduction device, in particular to a sound absorption and noise reduction device for a recording studio.
Background
Recording studios generally require a relatively quiet environment in order to reduce noise and ensure recording quality. The sound-absorbing wedge is a special sound absorber, which requires almost all the sound waves incident on the surface of the sound-absorbing wedge to be absorbed and structurally consists of a base part and a wedge part, wherein the base part is a part with a constant bottom section, and the wedge part is a part with a section gradually increasing from a tip. The length ratio of the base part of the wedge to the length of the wedge part of the wedge is usually controlled to be about 1:4, and the length ratio is not suitable for being too large or too small.
Often use the wedge that absorbs sound to accomplish in recording studio sound insulation engineering and give sound insulation, but because the wedge volume of eliminating noise is great, it is higher to the space requirement in original room, behind the less room installation amortization wedge, its space dwindles greatly, and its functional reduction is serious.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention firstly provides a noise reduction device for sound absorption of a sound recording studio, so as to solve the problem that in the traditional mute engineering, the good mute construction scheme is greatly influenced by the room pattern in the traditional mute engineering construction.
The technical scheme is that the noise reduction device comprises a grid frame which is used for being detachably and fixedly connected with a wall surface and/or a ground, wherein the grid frame forms an even latticed hole or hole-shaped structure, and further comprises a noise reduction device matched with the grid frame in hole or hole shape and size, the noise reduction device comprises a shell, the lateral surface of the shell and the inner lateral surface of the grid frame in hole or hole are provided with detachable fixing devices matched with each other to form a detachable fixing structure of the noise reduction device, the shell forms a cavity for fixedly mounting a noise reduction unit, microporous noise reduction plates which are arranged at intervals in an array and are suspended are fixedly mounted in the cavity, the microporous noise reduction plates arranged in the array form an array noise reduction plate unit, and further comprises a resonance plate made of a sheet material, the array noise reduction plate unit is located at the position of the resonance plate, and two lateral surfaces of each microporous noise reduction plate are fixedly connected with the resonance plate through rigid fixing needles, the resonance plate is fixedly arranged and fixedly connected with the inner wall of the cavity.
In one embodiment, the micropore acoustical panel is a bowl-shaped structure with the edge protruding and the center being concave, the micropore acoustical panel faces the inner wall of the cavity and is provided with a gap with the inner wall, and the resonance panel is located at the center of the cavity to form a structure with uniform gaps between the resonance panel and the inner wall of the shell.
In the above or some embodiments, the surface of the resonance plate is provided with reinforcing ribs which are arranged in an intersecting manner and protrude out of the surface of the resonance plate, each reinforcing rib comprises a transverse rib and a vertical rib, the transverse ribs and the vertical ribs are arranged in an intersecting manner to form a structure which divides the resonance plate into a plurality of resonance units, and each resonance plate unit corresponds to the microporous sound absorption plate and forms a gap therebetween to form a resonance structure of the resonance plate.
In the above or some embodiments, the resonance plate includes two resonance thin plates arranged in parallel and spaced apart from each other, and the transverse ribs and the vertical ribs are located at outer side surfaces of the resonance thin plates.
In the above or some embodiments, the cross rib or the vertical rib is fixedly installed on the surface of the resonator plate by welding.
In the above or some embodiments, the microporous sound-absorbing plate is made of a sheet-like structure with a thickness of 0.5-1.2mm, the pore diameter of the microporous sound-absorbing plate is set in a range of 0.2-1mm, and the perforation rate is 1% -10%.
In the above or some embodiments, the resonator plate is made of a 0.3-0.5mm sheet metal plate.
In the above or some embodiments, the casing includes two pairs of front and back plates of a plate-like structure that are fixedly disposed in parallel at intervals, the front and back plates form the cavity therebetween, and the casing further includes a damping frame made of an elastic material and fixed along edges of the front and back plates, the damping frame is at least partially located between the front and back plates and is fixedly connected with the front and back plates, and the damping frame at least partially protrudes from the edges of the front and back plates to form a structure in which inner side surfaces of holes or cavities formed by the grid frames are in close contact.
In the above or some embodiments, the front and back plates are made of one of glass, acrylic plate, polyurethane plate, and resin plate.
In the above or some embodiments, the grid frame includes cross-fixed horizontal rods and vertical rods, the horizontal rods and the vertical rods are provided with clamping grooves distributed at equal intervals, the clamping grooves keep the horizontal rods and the vertical rods in the same plane after being clamped, through holes for fixing bolts for fixedly connecting with a wall or the ground are arranged at the intersecting positions of the clamping grooves, and bushings made of rigid materials are fixedly sleeved in the through holes.
In the above or some embodiments, the grille frame further comprises a silencing felt, the silencing felt is wrapped and fixed on the surfaces of the cross rods and the vertical rods of the grille frame, and the damping frame and the silencing felt are tightly abutted to form close contact and are fixed.
According to the technical scheme, the noise reduction device main body is arranged independently, a preset wall-shaped mute project can be formed by splicing with the grid frame, and the noise reduction device is not limited by the wall shape; on the other hand, the prefabricated noise reduction device can be directly spliced and constructed according to a wall surface or a preset space cutting scheme, and rapid construction can be carried out only by filling a bonding agent in the groove in the construction process, so that the construction is rapid and convenient; meanwhile, the shell is made of materials with higher surface density, such as glass, acrylic plates, polyurethane plates, resin plates and the like, so that the loss of sound in the transmission process is enhanced, and the sound insulation effect is better in time; the shell forms a cavity for fixedly installing the silencing units, microporous silencing plates which are arranged in an array at intervals and are arranged in a suspended mode are fixedly installed in the cavity, the microporous silencing plates arranged in the array form an array silencing plate unit, the microporous silencing plates of the array form a microporous silencing structure through micropores on the surface, and another layer can be formed by arranging the microporous sound-absorbing plate into a sheet-like structure of 0.5-1.2mm, the aperture of the micropore silencing plate is set to be 0.2-1mm, the perforation rate is 1% -10%, the structure combines a micro-perforation sound absorption structure and a thin plate resonance sound absorption structure, the micro-perforation structure can achieve certain sound absorption requirements by utilizing the micro-perforation sound resistance of the micro-perforation structure, the structure does not need to add other sound-resistance materials behind the micropore sound-absorbing plate, is not afraid of water and moisture, and has the technical effects of fire prevention and flame retardance; the sheet-type micropore sound-absorbing plate and the closed cavity form a sheet resonance sound-absorbing structure, when sound is incident on the sheet, on one hand, sound absorption is realized through the micropore structure, on the other hand, the micropore sound-absorbing plate of the sheet is excited to vibrate, so that the micropore sound-absorbing plate is bent and deformed, and due to friction between the micropore sound-absorbing plate and air and a fixed fulcrum and internal damping of the plate, part of sound energy is converted into heat energy loss; above-mentioned scheme is simple swift at the embodiment, has fine amortization to high frequency and low frequency sound moreover, and the amortization effect is good.
Drawings
Fig. 1 is a schematic view showing the structure of a grid frame according to the present invention.
Fig. 2 is a schematic structural view of a cross bar or a vertical bar in the present invention.
Fig. 3 is a schematic cross-sectional view of a-a in fig. 2.
Fig. 4 is a schematic structural diagram of the noise reduction device in the present invention.
Fig. 5 is a schematic view of the structure of a resonator plate according to the present invention.
Fig. 6 is a schematic structural view of the microporous sound-absorbing plate of the present invention.
Detailed Description
The following detailed description is made with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Those of ordinary skill in the art will recognize that the directional terms "upper," "lower," "outer," "inner," etc., are used in a descriptive sense with respect to the figures and are not intended to limit the scope of the claims.
The grid frame 100 comprises cross-fixed cross bars 102 and vertical bars made of light steel materials, in the embodiment shown in fig. 1, the cross bars 102 and the vertical bars are perpendicularly arranged in an intersecting manner, clamping grooves 103 which are distributed at equal intervals are formed in the cross bars 102 and the vertical bars, the depth of each clamping groove 103 is half of the thickness of each cross bar 102 or each vertical bar, so that the cross bars 102 and the vertical bars are kept in the same plane after being clamped, through holes 104 for fixing bolts are formed in the intersecting positions of the clamping grooves 103 and fixedly connected with a wall or the ground, a bushing 105 made of a rigid material is fixedly sleeved in each through hole 104, the bushing 105 is fixedly embedded in each through hole 104, and the pre-fixing of the cross bars 102 and the vertical bars is realized through the action of a middle piece of the bushing 105, so that the grid frame 100 is conveniently fixed on the wall or the ground. Of course, the intersecting manner of the grid frames 100 is not limited to vertical, and may also be set according to the specific shape of the wall surface, including but not limited to a diamond shape, a quadrilateral shape, etc. After the grid frame 100 is arranged, the silent felt 101 is wrapped and fixed on the surfaces of the cross rods 102 and the vertical rods of the grid frame 100, the damping frame 209 is abutted against the silent felt 101 to form a tight contact and is fixed, the silent felt 101 is fixed on the surface of the grid frame 100 through structural glue, of course, the silent felt 101 is only one of the selectable materials, and the silent felt 101 can also be made of flexible rubber with larger surface density, including but not limited to thermoplastic rubber.
In the above or some embodiments, the grid frame 100 forms a uniform grid-shaped hole or hole structure, wherein the noise reduction device 200 is matched with the shape and size of the hole or hole of the grid frame 100, and the noise reduction device 200 is embedded and fixed with the hole or hole structure, in order to ensure the above technical effect, the housing 201 of the noise reduction device 200 comprises two pairs of front back plates 207 and back plates 208 which are fixedly arranged in parallel and spaced apart, a cavity 202 is formed between the front back plates 207 and the back plates 208, and a damping frame 209 made of elastic material is fixed along the edges of the front back plates 208 and at least partially positioned between the front back plates 208 and fixedly connected with the front back plates 208, the damping frame 209 at least partially protrudes from the edges of the front back plates 208 to form a structure in close contact with the inner side surfaces of the hole or hole formed by the grid frame, the damping frame 209 is made of elastic rubber or other elastic materials, and the front and back plates 208 are made of one of glass, acrylic plate, polyurethane plate, and resin plate.
In the above or some embodiments, the sound-absorbing unit is fixed in the cavity 202 of the housing 201, the micro-porous sound-absorbing boards 203 arranged in an array and at intervals and suspended in the air are fixedly installed in the cavity 202, the micro-porous sound-absorbing boards 203 arranged in an array form an array sound-absorbing board unit, the sound-absorbing board unit further comprises a sound-absorbing board 204 made of a thin sheet material, the array sound-absorbing board unit is located at two side positions of the sound-absorbing board 204, each micro-porous sound-absorbing board 203 is fixedly connected with the sound-absorbing board 204 through a rigid fixing pin 205, the sound-absorbing board 204 is fixedly installed and fixedly connected with the inner wall of the cavity 202, the micro-porous sound-absorbing board 203 is fixed in the air by the fixing pin 205 in the air, on one hand, the implementation structure of micro-porous sound-absorbing is maintained through the setting range of 0.2-1mm and the perforation ratio of 1% -10%, on the other hand, the micro-porous sound-absorbing board 203 is formed by a sheet structure of 0.5-1.2mm and the interval is arranged between the sound-absorbing board 204, the spacing forms a resonant cavity that further combines with the dampening effect achieved by the vibration of the microporous acoustical panel 203.
In the above or some embodiments, the micro-porous sound absorbing plate 203 is a bowl-shaped structure with a convex edge and a concave center, which is more favorable for sound absorption, the micro-porous sound absorbing plate 203 faces the inner wall of the cavity 202 and has a gap with the inner wall, the sound absorbing plate 204 is located at the center of the cavity 202 to form a structure with a uniform gap between the sound absorbing plate 204 and the inner wall of the housing 201, the surface of the sound absorbing plate 204 is provided with reinforcing ribs 206 which are arranged in an intersecting manner and protrude from the surface of the sound absorbing plate 204, the reinforcing ribs 206 include transverse ribs and vertical ribs, the transverse ribs and the vertical ribs are arranged in an intersecting manner to form a structure which divides the sound absorbing plate 204 into a plurality of resonance units, each resonance plate 204 unit corresponds to and has a gap with the micro-porous sound absorbing plate 203 to form a resonance structure of the sound absorbing plate 204, and the micro-porous sound absorbing plates 203 connected at the intersecting positions of the transverse ribs and the vertical ribs form a structure which shields the resonance units, when sound waves contact the micropore silencing plate 203, silencing is carried out through micropores, and then the multiple resonance silencing effect is achieved through the micropore silencing plate 203 and the resonance plate 204; in the above or some embodiments, the resonance plate 204 comprises two resonance thin plates arranged in parallel and at intervals, and the transverse ribs and the vertical ribs are located at the outer side surfaces of the resonance thin plates; the cross or vertical ribs are fixedly attached to the surface of the resonator plate 204 by welding, and in the above or some embodiments, the resonator plate 204 is made of a 0.3-0.5mm sheet metal.
In the technical scheme of the patent, the main body of the noise reduction device 200 is arranged independently, and can be spliced with the grid frame 100 to form a preset wall-shaped mute project without being limited by the shape of the wall; on the other hand, the prefabricated noise reduction device 200 can be spliced and constructed directly according to a wall surface or a preset space cutting scheme, and can be constructed quickly and conveniently only by filling a bonding agent in the groove in the construction process; meanwhile, the shell 201 is made of materials with high surface density, such as glass, acrylic plates, polyurethane plates and resin plates, of the front back plate 208 and the back plate 208, so that the loss of sound in the transmission process is enhanced, and the sound insulation effect is good in time; the shell 201 forms a cavity 202 for fixedly mounting the silencing unit, microporous silencing plates 203 which are arranged at intervals in an array and are arranged in a suspended mode are fixedly mounted in the cavity 202, the microporous silencing plates 203 which are arranged in the array form an array silencing plate unit, the microporous silencing plates 203 of the array form a microporous silencing structure through micropores on the surface, and another layer can be formed by arranging the microporous sound-absorbing plate into a sheet-like structure of 0.5-1.2mm, the aperture of the micropore silencing plate is set to be 0.2-1mm, the perforation rate is 1% -10%, the structure combines a micro-perforation sound absorption structure and a thin plate resonance sound absorption structure, the micro-perforation structure can achieve certain sound absorption requirements by utilizing the micro-perforation sound resistance of the micro-perforation structure, the structure does not need to add other sound-resistance materials behind the micropore sound-absorbing plate, is not afraid of water and moisture, and has the technical effects of fire prevention and flame retardance; the sheet-type microporous sound-absorbing plate and the closed cavity 202 form a sheet resonance sound-absorbing structure, when sound is incident on the sheet, on one hand, sound absorption is realized through the microporous structure, on the other hand, the vibration of the sheet-type microporous sound-absorbing plate is excited, so that the microporous sound-absorbing plate is bent and deformed, and due to the friction between the microporous sound-absorbing plate and air and a fixed pivot and the internal damping of the plate, part of sound energy is converted into heat energy loss; above-mentioned scheme is simple swift at the embodiment, has fine amortization to high frequency and low frequency sound moreover, and the amortization effect is good.

Claims (6)

1. The sound-absorbing noise-reducing device for the recording studio comprises a grid frame (100) which is used for being detachably and fixedly connected with a wall surface and/or a ground, and is characterized in that the grid frame (100) forms an even latticed hole or a hole-shaped structure, and further comprises a noise-reducing device (200) which is matched with the grid frame (100) in hole or hole shape and size, wherein the noise-reducing device (200) comprises a shell (201), the side surface of the shell (201) and the inner side surface of the grid frame forming hole or hole are provided with detachable fixing devices which are matched with each other to form a detachable fixing structure of the noise-reducing device (200), the shell (201) forms a cavity (202) for fixedly mounting a noise-reducing unit, micropore noise-reducing boards (203) which are arranged at intervals in an array are fixedly mounted in the cavity (202) and are arranged in a suspension manner, and the micropore noise-reducing boards (203) which are arranged in the array form an array noise-reducing board unit, the cellular acoustic board is characterized by further comprising a resonance board (204) made of a sheet material, the array acoustic board units are located on two side faces of the resonance board (204), each microporous acoustic board (203) is fixedly connected with the resonance board (204) through a rigid fixing pin (205), the resonance board (204) is fixedly installed and fixedly connected with the inner wall of the cavity (202), the shell (201) comprises a front back plate (207) and a back plate (208) which are of plate-shaped structures and are fixedly arranged in parallel at intervals, the cavity (202) is formed between the front back plate (207) and the back plate (208), the cellular acoustic board further comprises a damping frame (209) which is fixed along the edges of the front back plate (208) and made of elastic materials, at least part of the damping frame (209) is located between the front back plate (208) and fixedly connected with the front back plate (208), and at least part of the damping frame (209) protrudes out of the front back plate (208), The border of backplate (208) forms the structure of the medial surface in close contact with in hole or the hole that the grid frame formed, the surface department of resonance board (204) is equipped with intersects just to arrange and projects the stiffening rib (206) on resonance board (204) surface, stiffening rib (206) include horizontal rib and vertical rib, horizontal rib and vertical rib intersect to arrange and form with resonance board (204) are cut apart the structure that forms a plurality of resonance units, each resonance board (204) unit with micropore acoustical panel (203) correspond and between form the interval, form the resonance structure of resonance board (204), micropore acoustical panel (203) is the bowl-shaped structure of border department's salient center department indent, micropore acoustical panel (203) towards the inner wall of cavity (202) and with be equipped with the interval between the inner wall, resonance board (204) are located the central point department of cavity (202), form and be equipped with evenly spaced structure between resonance board (204) and casing (201) inner wall, the resonance plate (204) comprises two resonance thin plates which are arranged in parallel at intervals, and the transverse ribs and the vertical ribs are positioned on the outer side surfaces of the resonance thin plates.
2. The noise reducer for sound absorption of sound recording studio according to claim 1, wherein the horizontal or vertical ribs are fixedly attached to the surface of the sound board (204) by welding.
3. The device for reducing the noise in sound absorption of a recording studio according to any one of claims 1 and 2, wherein the micro-porous sound absorbing sheet (203) has a sheet-like structure of 0.5-1.2mm, and has a pore diameter of 0.2-1mm and a perforation rate of 1-10%.
4. The sound absorbing and noise reducing mechanism of sound recording studio of claim 3, wherein said sound board (204) is made of sheet metal of 0.3-0.5 mm.
5. The noise reduction device for sound absorption of a recording studio according to claim 1, wherein the grid frame (100) comprises cross-fixed cross bars (102) and vertical bars, the cross bars (102) and the vertical bars are provided with clamping grooves (103) distributed at equal intervals, the clamping grooves (103) keep the cross bars (102) and the vertical bars in the same plane after being clamped, the intersection positions of the clamping grooves (103) are provided with through holes (104) for fixing bolts for fixedly connecting with a wall or the ground, and bushings (105) made of rigid materials are fixedly sleeved in the through holes (104).
6. The noise reduction device for sound absorption of the recording studio according to claim 5, further comprising a mute felt (101), wherein the mute felt (101) is wrapped and fixed on the surfaces of the cross bar (102) and the vertical bar of the grid frame (100), and the damping frame (209) is tightly abutted with the mute felt (101) to form a tight contact and is fixed.
CN202010528613.8A 2020-06-11 2020-06-11 Noise reduction device for sound absorption of recording studio Expired - Fee Related CN111622367B (en)

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Application Number Priority Date Filing Date Title
CN202010528613.8A CN111622367B (en) 2020-06-11 2020-06-11 Noise reduction device for sound absorption of recording studio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010528613.8A CN111622367B (en) 2020-06-11 2020-06-11 Noise reduction device for sound absorption of recording studio

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000099034A (en) * 1998-09-21 2000-04-07 Ritsumeikan Resonator type sound absorbing device
JP2001152572A (en) * 1999-11-30 2001-06-05 Itoki Crebio Corp Soundproof panel device
CN203701317U (en) * 2013-12-13 2014-07-09 深圳市科德声学技术有限公司 Micro-through-hole double-cavity sound-absorbing board
CN206308821U (en) * 2016-08-23 2017-07-07 昆明理工大学 A kind of building floor sound insulation damping power consumption bed course
CN209670108U (en) * 2019-01-18 2019-11-22 重庆平祥建筑工程有限公司 A kind of structural insulating board that soundproof effect is good

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000099034A (en) * 1998-09-21 2000-04-07 Ritsumeikan Resonator type sound absorbing device
JP2001152572A (en) * 1999-11-30 2001-06-05 Itoki Crebio Corp Soundproof panel device
CN203701317U (en) * 2013-12-13 2014-07-09 深圳市科德声学技术有限公司 Micro-through-hole double-cavity sound-absorbing board
CN206308821U (en) * 2016-08-23 2017-07-07 昆明理工大学 A kind of building floor sound insulation damping power consumption bed course
CN209670108U (en) * 2019-01-18 2019-11-22 重庆平祥建筑工程有限公司 A kind of structural insulating board that soundproof effect is good

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