Sound absorption and decoration integrated plate

Abstract

The invention relates to the technical field of building boards, in particular to a sound absorption and decoration integrated board. The sound transmission surface layer, the sound absorption layer and the resonance noise reduction layer are sequentially bonded from outside to inside, the sound transmission surface layer is a microporous aluminum plate, and the resonance noise reduction layer is a honeycomb core material. The multi-stage composite sound absorption device is reasonable in structural design, adopts a mode of combining sound transmission, sound absorption and resonance to form a multi-stage composite sound absorption system so as to effectively destroy noise propagation, can use noise with different wavelengths, effectively avoids noise such as wind noise, mechanical noise, traffic noise and high-altitude noise, guarantees indoor quietness, and is suitable for popularization and application. The noise eliminating effect is really achieved, and the problems existing in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building board, in particular to a sound-absorbing and decorative integrated board. BACKGROUND

[0002] At present, the sound insulation effect of the board used in building is not good, which has become a very common and disturbing problem. The noise generated by the building is various, including wind noise, mechanical noise, traffic noise, high altitude noise and other noises, and these noises are transmitted into the room through the board, which has a certain influence on people's production and life. The reason is that the sound-absorbing material used in the existing board is mostly porous material (such as glass wool or mineral wool with a large number of small gaps) and cloth material (such as polyester fiber cloth or centrifugal glass wool, and the surface is covered with sound-absorbing cotton), which only has the function of transmitting sound, and its noise reduction effect is limited, and it cannot completely act on different wavelengths of noise, and it does not have the function of sound absorption, which is the direct cause of the diffusion of noise. SUMMARY

[0003] In order to make up for the shortcomings of the prior art, the present application provides a sound-absorbing and decorative integrated board, which has a reasonable structure and adopts a combination of sound transmission, sound absorption and resonance to form a multi-stage composite sound absorption system, thereby effectively destroying the propagation of noise, and can be used with different wavelengths of noise to effectively avoid wind noise, mechanical noise, traffic noise, high altitude noise and other noises, ensure the quietness of the room, and truly play a role in eliminating noise, solving the problems existing in the prior art.

[0004] The technical scheme adopted by the present application to solve the above technical problems is:

[0005] A sound-absorbing and decorative integrated board, comprising a sound-transmitting surface layer, a sound-absorbing layer and a resonance noise-reducing layer which are sequentially bonded from outside to inside, the sound-transmitting surface layer is a microporous aluminum plate, and the resonance noise-reducing layer is a honeycomb core material.

[0006] Optionally, the sound-absorbing layer is any one of glass fiber cloth, polyester fiber cloth and chemical fiber fabric.

[0007] Optionally, it further comprises a sealing layer arranged outside the resonance noise-reducing layer, and the sealing layer is a sealing aluminum plate.

[0008] Optionally, a fireproof and moisture-proof layer is arranged between the resonance noise-reducing layer and the sealing layer, and the fireproof and moisture-proof layer is a fireproof inorganic core material.

[0009] Optionally, a vibration reduction layer is arranged between the resonance noise-reducing layer and the fireproof and moisture-proof layer, and the vibration reduction layer is a vibration reduction aluminum plate.

[0010] Optionally, the perforation density of the microporous aluminum plate is 200,000 to 400,000 per square meter.

[0011] The sound-absorbing and decorating integrated board comprises a sound-transmitting surface layer, a resonance noise-reducing layer and a sound-absorbing layer which are sequentially adhered from outside to inside, the sound-transmitting surface layer is a microporous aluminum plate, and the resonance noise-reducing layer is a honeycomb core material.

[0012] Optionally, the sound-absorbing layer is any one of a glass fiber cloth, a polyester fiber cloth and a chemical fabric.

[0013] Optionally, the sound-absorbing layer is any one of a glass fiber cloth, a polyester fiber cloth and a chemical fabric.

[0014] Optionally, a fireproof and moisture-proof layer is arranged between the resonance noise-reducing layer and the closed layer, and the fireproof and moisture-proof layer is a fireproof inorganic core material.

[0015] The application has the advantages of reasonable structure design, combination of sound transmission, sound absorption and resonance, formation of a multi-stage composite sound-absorbing system, effective destruction of noise propagation, use with different wavelengths of noise, effective avoidance of wind noise, mechanical noise, traffic noise, high-altitude noise and other noises, guarantee of indoor quietness and true elimination of noise. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 Fig. 1 is a schematic diagram of a three-dimensional structure of an embodiment of the application;

[0017] Fig. 2 Fig. 2 is a schematic diagram of a three-dimensional structure of another embodiment of the application;

[0018] In the figure, 1 is a sound-transmitting surface layer, 2 is a sound-absorbing layer, 3 is a resonance noise-reducing layer, 4 is a closed layer, 5 is a fireproof and moisture-proof layer, and 6 is a damping layer. DETAILED DESCRIPTION

[0019] To clearly illustrate the technical features of the present application, the application will be described in detail below with reference to the specific embodiments and the accompanying drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, and therefore, the scope of protection of the application is not limited by the specific embodiments disclosed below.

[0020] In addition, in the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0021] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0022] As shown in Figs. 1-2 ,

[0023] Embodiment one:

[0024] An acoustic absorption and decoration integrated plate comprises, from outside to inside, a sound transmission surface layer 1, an acoustic absorption layer 2 and a resonance noise reduction layer 3 which are bonded in sequence, the sound transmission surface layer 1 is a microporous aluminum plate, and the resonance noise reduction layer 3 is a honeycomb core material.

[0025] Optionally, the acoustic absorption layer 2 is any one of glass fiber cloth, polyester fiber cloth and chemical fiber fabric.

[0026] Optionally, a sealing layer 4 is arranged outside the resonance noise reduction layer 3, and the sealing layer 4 is a sealing aluminum plate. The main function of the sealing layer 4 is to improve the overall structural rigidity of the plate, which can preliminarily suppress the vibration generated by the resonance noise reduction layer. It also has a sound insulation effect, effectively blocking the tail sound after sound transmission, sound absorption and resonance noise reduction, and further improving the overall sound absorption effect of the plate.

[0027] Optionally, a fireproof and moisture-proof layer 5 is arranged between the resonance noise reduction layer 3 and the sealing layer 4, and the fireproof and moisture-proof layer 5 is a fireproof inorganic core material. The fireproof inorganic core material used in the fireproof and moisture-proof layer 5 cooperates with the sealing layer 4 to further improve the overall structural rigidity of the plate and has a sound insulation effect. The fireproof inorganic core material made of fireproof inorganic material has the effect of blocking sound bridge and improving low-frequency sound insulation. At the same time, the fireproof inorganic core material has the effect of resisting high temperature, and can resist high temperature of 1200°C for 2 hours without burning through, and has the effect of fireproof and flame retardant.

[0028] Optionally, a damping layer 6 is arranged between the resonance noise reduction layer 3 and the fireproof and moisture-proof layer 5, and the damping layer 6 is a damping aluminum plate. The main function of the damping layer 6 is to further reduce and block the conduction of sound waves, and to buffer the vibration generated by the resonance noise reduction layer 3, thereby playing a damping role.

[0029] Optionally, the perforation density of the micro-perforated aluminum plate is 200,000 to 400,000 per square meter. Compared with conventional large-hole perforated plates (such as Φ3-6mm), the micro-holes on the micro-perforated aluminum plate are almost invisible to the naked eye, which not only maintains the overall flatness and beauty of the panel, but also significantly improves the sound transmission efficiency.

[0030] The sound in nature exists in the form of sound waves. The main function of the sound transmission surface layer 1 is a. allowing sound waves to enter, the micro-holes on the micro-perforated aluminum plate can act as "acoustic channels" to allow sound to penetrate the sound transmission panel 1 and enter the next layer (sound absorption layer). b. The micro-holes on the micro-perforated aluminum plate can effectively block dust and water droplets from entering, and have the effect of dustproof, waterproof and breathable.

[0031] The main function of the sound absorption layer 2 is a. sound absorption and friction energy dissipation: when the sound wave passes through the micro-holes on the micro-perforated aluminum plate, it first contacts the sound absorption cloth, and generates viscous resistance in the fiber gap, converting part of the sound energy into heat energy. b. Adjusting the acoustic impedance matching: cooperates with the micro-perforated aluminum plate to optimize the sound wave guide-in efficiency and improve the overall sound absorption coefficient of the plate. c. Enhancing the integrity of the structure: the sound absorption layer also plays a role in adhesion and transition, improving the bonding force between the layers. d. Protecting the honeycomb core material: preventing dust and particulate matter from entering the honeycomb channels during construction or use, thereby preventing blockage.

[0032] The main functions of the resonance noise reduction layer 3 are: a. Resonance sound absorption: each honeycomb unit of the honeycomb core forms multiple closed / semi-closed resonance cavities, each honeycomb unit corresponds to a micro Helmholtz resonator, which has the function of absorbing sound energy at a specific frequency. b. Air column vibration energy consumption: when sound waves propagate in the honeycomb units of the honeycomb core, air friction with the hole wall consumes sound wave energy, especially for medium and high frequencies. c. Light weight and high strength support: provides excellent specific stiffness and bending resistance, achieving lightweight design. d. Heat and vibration insulation: has the functions of thermal insulation and vibration reduction.

[0033] The sound transmission surface layer 1, the sound absorption layer 2 and the resonance noise reduction layer 3 together form a "micro-perforated plate sound absorption structure" (MPP), which is particularly suitable for absorbing medium and low frequency noise (500-2000Hz).

[0034] The working principle of the sound absorption decorative integrated board is as follows: ① Sound waves are incident on the sound transmission surface layer 1, most of the sound energy passes through the micro holes on the micro-perforated aluminum plate into the interior, and a small amount is reflected. ② The sound wave passes through the sound absorption layer 2, friction loss occurs in the fiber network, achieving the first stage of energy dissipation, and making it evenly diffuse to the resonance noise reduction layer 3. ③ The sound wave enters the honeycomb unit of the honeycomb core, exciting air column vibration and friction with the hole wall, and at the same time, each honeycomb unit resonates to absorb sound energy at a specific frequency. It has a reasonable structure design, adopts a combination of sound transmission, sound absorption and resonance, forms a multi-stage composite sound absorption system, effectively destroys the propagation of noise, and can use different wavelengths of noise, effectively avoids wind noise, mechanical noise, traffic noise, high-altitude noise and other noises, ensures the quietness of the room, and truly plays a role in eliminating noise, solving the problems existing in the prior art.

[0035] Embodiment two:

[0036] A sound absorption and decoration integrated board comprises, from the outside to the inside, a sound transmission surface layer 1, a resonance noise reduction layer 3 and a sound absorption layer 2 which are bonded in sequence, the sound transmission surface layer 1 is a micro-perforated aluminum plate, and the resonance noise reduction layer 3 is a honeycomb core.

[0037] Optionally, the sound absorption layer 2 is any one of a glass fiber cloth, a polyester fiber cloth and a chemical fiber fabric.

[0038] Optionally, the sound absorption and decoration integrated board further comprises a sealing layer 4 arranged on the outer side of the resonance noise reduction layer 3, and the sealing layer 4 is a sealing aluminum plate. The main function of the sealing layer 4 is to improve the overall structural stiffness of the board, which can preliminarily suppress the vibration generated by the resonance noise reduction layer. It also has the function of sound insulation, effectively blocking the tail sound after sound transmission, sound absorption and resonance noise reduction, and further improving the overall sound absorption effect of the board.

[0039] Optionally, a fireproof moisture-proof layer 5 is arranged between the resonance noise reduction layer 3 and the sealing layer 4, and the fireproof moisture-proof layer 5 is a fireproof inorganic core material. The fireproof inorganic core material used in the fireproof moisture-proof layer 5 cooperates with the sealing layer 4 to further improve the overall structural rigidity of the plate and play a sound insulation role. The fireproof inorganic core material made of fireproof inorganic material has the effect of blocking sound bridge and improving low-frequency sound insulation. At the same time, the fireproof inorganic core material has the effect of resisting high temperature, and can resist high temperature of 1200℃ for 2 hours without burning through, and has the effect of fireproof and flame retardant.

[0040] The sound in nature exists in the form of sound waves. The main role of the sound transmission surface layer 1 is that a. the micro-holes on the micro-holes aluminum plate can be used as "acoustic channels" to allow sound to penetrate the sound transmission panel 1 and enter the next layer (sound absorbing layer). b. The micro-holes on the micro-holes aluminum plate can effectively block dust and water droplets from entering, and have the effect of dustproof, waterproof and breathable.

[0041] The main role of the resonance noise reduction layer 3 is that a. auxiliary sound absorption: although the honeycomb unit of the honeycomb core material does not directly participate in sound absorption (without sound absorbing layer 2), its rigid structure can be used as a backboard reflection surface to cooperate with the back cavity to improve the overall sound absorption efficiency. b. Resonant sound absorption: each honeycomb unit of the honeycomb core material forms a plurality of closed / semi-closed resonance cavities, and each honeycomb unit is equivalent to a micro-sized Helmholtz resonator, which has the effect of absorbing sound energy at a specific frequency. c. Air column vibration energy consumption: when sound waves propagate in the honeycomb unit of the honeycomb core material, air friction with the hole wall occurs, thereby consuming sound wave energy, especially for medium and high frequencies. d. Light weight and high strength support: provides excellent specific stiffness and bending resistance, achieving lightweight design. d. Heat insulation and vibration reduction: has the functions of thermal insulation and vibration reduction.

[0042] The main role of the sound absorbing layer 2 is that the sound absorbing layer 2 here only serves as an auxiliary sound absorption role and can be used as a "sound transmission protection layer" to allow sound to pass through and be absorbed by the rear material. At this time, the sound absorbing layer 2 is not the main sound absorption body and does not directly contact the sound wave, so its "sound absorption" function is indirect, and it serves the integrity of the entire sound absorption system.

[0043] The sound transmission surface layer 1, the sound absorbing layer 2 and the resonance noise reduction layer 3 together constitute a "micro-perforated plate sound absorption structure" (MPP), which is particularly suitable for absorbing medium and low frequency noise (500-2000Hz).

[0044] The working principle of cooperation is: ① sound waves are incident to the sound transmission surface layer 1, most of the sound energy is transmitted through the micropores on the microporous aluminum plate into the interior, and a small amount is reflected. ② The sound waves enter the honeycomb cells of the honeycomb core material, and at the same time of resonance noise reduction, also assist in sound absorption, effectively reducing the energy of the sound waves. ③ The sound waves enter the sound absorption layer 2 and occur friction loss in the fiber network to decompose the tail sound. It has a reasonable structure design, adopts the combination of sound transmission, sound absorption and resonance, forms a multi-stage composite sound absorption system, thereby effectively destroying the propagation of noise, and can use different wavelengths of noise, effectively avoiding wind noise, mechanical noise, traffic noise, high-altitude noise and other noises, ensuring the quietness of the indoor, and truly playing a role in eliminating noise, solving the problems existing in the prior art.

[0045] In addition, the traditional plate with sound absorption function cannot be made into a large plate, and small plates are used. The increase of plate joints will inevitably affect the overall noise reduction effect. If produced according to the large plate specification, the overall strength of the plate will be seriously affected, and the integrated plate has the functions of large plate and sound absorption and noise reduction, which is not possessed by the existing plate.

[0046] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application; any alternative improvement or change made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0047] The details of the present application not described are well known to those skilled in the art.

Claims

1. A sound-absorbing and decorative integrated panel, characterized in that, It includes a sound-permeable surface layer, a sound-absorbing layer, and a resonance noise reduction layer, which are bonded together sequentially from the outside to the inside. The sound-permeable surface layer is a microporous aluminum plate, and the resonance noise reduction layer is a honeycomb core material.

2. The sound-absorbing and decorative integrated panel according to claim 1, characterized in that, The sound-absorbing layer is any one of glass fiber cloth, polyester fiber cloth, or chemical fiber fabric.

3. A sound-absorbing and decorative integrated panel according to claim 1 or 2, characterized in that, It also includes a sealing layer disposed on the outside of the resonance noise reduction layer, wherein the sealing layer is a sealed aluminum plate.

4. The sound-absorbing and decorative integrated panel according to claim 3, characterized in that, A fire-resistant and moisture-proof layer is provided between the resonance noise reduction layer and the sealing layer, and the fire-resistant and moisture-proof layer is a fire-resistant inorganic core material.

5. The sound-absorbing and decorative integrated panel according to claim 4, characterized in that, A vibration damping layer is provided between the resonance noise reduction layer and the fire-resistant and moisture-proof layer, and the vibration damping layer is a vibration damping aluminum plate.

6. The sound-absorbing and decorative integrated panel according to claim 1, characterized in that, The perforation density of the microporous aluminum plate is 200,000 to 400,000 per square meter.

7. A sound-absorbing and decorative integrated panel, characterized in that, It includes a sound-permeable surface layer, a resonance noise reduction layer, and a sound-absorbing layer, which are bonded together sequentially from the outside to the inside. The sound-permeable surface layer is a microporous aluminum plate, and the resonance noise reduction layer is a honeycomb core material.

8. The sound-absorbing and decorative integrated panel according to claim 7, characterized in that, The sound-absorbing layer is any one of glass fiber cloth, polyester fiber cloth, or chemical fiber fabric.

9. A sound-absorbing and decorative integrated panel according to claim 7 or 8, characterized in that, It also includes a sealing layer disposed on the outside of the resonance noise reduction layer, wherein the sealing layer is a sealed aluminum plate.

10. A sound-absorbing and decorative integrated panel according to claim 9, characterized in that, A fire-resistant and moisture-proof layer is provided between the resonance noise reduction layer and the sealing layer, and the fire-resistant and moisture-proof layer is a fire-resistant inorganic core material.

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