Resonance damping sound insulation module for acoustic laboratory and acoustic laboratory

Abstract

The utility model discloses a resonance damping sound insulation module for acoustics laboratory and acoustics laboratory wherein the module comprises a first damping sound insulation board, a resistive fiber sound insulation block and a second damping sound insulation board which are arranged in order from inside to outside wherein the first damping sound insulation board and the second damping sound insulation board have different resonance frequencies; the resistive fiber sound insulation block is located between the two damping sound insulation plates, the gap is effectively filled, a multi-layer acoustic barrier is formed, and the overall sound insulation effect is improved. Meanwhile, sound wave energy can be absorbed through the sound absorption characteristic of the resistive fibers, internal reflection and propagation are reduced, and the damping effect is optimized. The stacked design enables the module to carry out fine adjustment on sound waves of different frequency bands, and ensures that a good acoustic effect is achieved in a wide frequency range. In addition, the connection strength between the two damping sound insulation plates is enhanced through the resistive fiber sound insulation blocks, looseness or deformation under the action of sound waves is prevented, the stability of the whole structure is improved, and the service life of the whole structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustics, and particularly relates to a resonance damping sound insulation module and an acoustic laboratory for an acoustic laboratory. Background Art

[0002] An acoustic laboratory is a dedicated environment for acoustic research and testing, aiming to control and isolate external noise interference so as to accurately measure and analyze phenomena such as the propagation, sound absorption, and reflection of sound waves. Acoustic laboratories are usually equipped with high-standard acoustic facilities, such as anechoic chambers, sound measurement equipment, and acoustic materials, to ensure the accuracy and reliability of test results, and are widely used in fields such as architectural acoustics, environmental acoustics, and audio equipment development.

[0003] Sound insulation walls play a crucial role in acoustic laboratories. They effectively block and reduce the impact of external noise on the experimental environment, thus providing a quiet and stable testing site. By using high-density materials and specially designed structures, sound insulation walls can not only prevent the propagation of sound waves but also reduce interference between different test areas inside the laboratory. The sound insulation ability of sound insulation walls is crucial for ensuring the accuracy and repeatability of acoustic measurements, and can help researchers obtain reliable data and in-depth analysis results.

[0004] The utility model patent with the authorization announcement number of CN220725462U discloses a caulking wall for sound insulation performance detection. As Figure 1 shown, it includes: a frame 100, a combined frame 200, and a sound insulation board 300. The frame 100 is connected at the opening of the test hole 110. Part of the combined frame 200 is directly connected to the side wall of the frame 100, and the other parts of the combined frame 200 are connected to each other to form a combined structure similar to a net, so that the installation area 120 in the middle of the frame 100 is divided into multiple partitions 130. Sound insulation boards 300 are arranged on the partitions 130. The sound insulation boards 300 are combined to form a caulking wall in the test hole 110, and a detection area 500 is also reserved on the installation area 120. A test piece 510 is arranged on the detection area 500. The overall structure formed between the test piece 510 and the sound insulation board 300 completely seals the hole.

[0005] The caulking wall for sound insulation performance detection disclosed in CN220725462U aims to make the sound insulation structure installation of the walls of the sound insulation laboratory convenient and reusable by setting a combined frame and modular sound insulation boards. However, the sound insulation boards used by it are composed of a panel, a first calcium silicate board, glass wool, a second calcium silicate board, and a backboard, and the calcium silicate board and glass wool have poor effects when dealing with low-frequency sound waves. It can be seen that the existing technology still needs to be improved and advanced. Summary of the Utility Model

[0006] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a resonance damping sound insulation module for an acoustic laboratory, aiming to solve the problem that the existing acoustic laboratory uses a sound insulation board composed of a panel, a first calcium silicate board, glass wool, a second calcium silicate board and a backboard, and has poor effect in dealing with low-frequency sound waves.

[0007] The technical solution of the present utility model is as follows:

[0008] A resonance damping sound insulation module for an acoustic laboratory, which is used for splicing multiple pieces to form a wall sound insulation structure of the acoustic laboratory, and includes: a first damping sound insulation board, a resistive fiber sound insulation block and a second damping sound insulation board arranged in sequence from inside to outside, and the resonance frequency of the first damping sound insulation board is different from that of the second damping sound insulation board.

[0009] The effect of the above solution is as follows: When sound waves hit the damping sound insulation board, it will cause the vibration of the sound insulation board substrate, and its vibration energy will be quickly transmitted to the closely arranged damping sound insulation materials inside, causing friction and vibration inside the materials, and converting the vibration of the damping sound insulation materials into heat energy and dissipating it. This is the damping characteristic of the damping sound insulation board, and this characteristic enables it to process low-frequency sound waves through a relatively thin thickness; therefore, the present utility model can effectively process both low-frequency sound waves and medium-high frequency sound waves by setting damping sound insulation boards and resistive fiber sound insulation blocks with different vibration frequencies. In addition, the present utility model arranges the resistive fiber sound insulation block between the two damping sound insulation boards. On the one hand, it effectively fills the gap between the two sound insulation boards, forms a multi-layer acoustic barrier, and improves the overall sound insulation effect; on the other hand, the good sound absorption characteristic of the resistive fiber material can absorb and dissipate sound wave energy, reduce the reflection and propagation of sound waves inside the structure, and optimize the damping effect (especially in the low-frequency band); on the third hand, by using the characteristic that the resistive fiber material is lighter in weight, the overall weight of the resonance damping sound insulation module is reduced, the requirements for the support structure are reduced, and the installation flexibility is improved; on the fourth hand, the laminated design enables the resonance damping sound insulation module to finely adjust different frequency bands of sound waves, ensuring good acoustic effects in a wide frequency range; finally, the resistive fiber sound insulation block also increases the connection strength between the two damping sound insulation boards, prevents loosening or deformation under the action of sound waves, and thus improves the stability and service life of the overall structure.

[0010] In a further preferred solution, a first resistive rubber-based damping strip is arranged between the first damping sound insulation board and the resistive fiber sound insulation block, and the first resistive rubber-based damping strip is used to form a first damping gap at the position between the first damping sound insulation board and the resistive fiber sound insulation block where the first resistive rubber-based damping strip is not provided.

[0011] The effects of the above solution are as follows: The setting of the resistive rubber-based damping strip forms a first damping gap between the first damping sound insulation board and the resistive fiber sound insulation block, effectively reducing the direct transmission of sound waves between the two and further improving the damping performance of the sound insulation module. Specifically, the first damping gap can absorb and dissipate the minute vibrations generated by the action of sound waves, reduce the propagation of vibration energy, and improve the overall acoustic performance. In addition, the resistive rubber-based material has excellent elasticity and vibration absorption characteristics, which can effectively weaken the influence of sound waves within a certain frequency range and optimize the processing effect of low-frequency sound waves. At the same time, the above setting can increase the flexibility of the system, enabling the sound insulation module to better adapt to the requirements of different acoustic environments, thereby achieving excellent sound insulation and damping effects within a wide frequency range. Therefore, by setting the resistive rubber-based damping strip, the present utility model not only improves the overall sound insulation effect but also enhances the stability and durability of the system and extends the service life.

[0012] In a further preferred solution, a second resistive rubber-based damping strip is provided between the second damping sound insulation board and the resistive fiber sound insulation block, and the second resistive rubber-based damping strip is used to form a second damping gap at the position between the second damping sound insulation board and the resistive fiber sound insulation block where the second resistive rubber-based damping strip is not provided.

[0013] The effects of the above solution are as follows: The second damping gap formed by the setting of the resistive rubber-based damping strip between the second damping sound insulation board and the resistive fiber sound insulation block further enhances the damping performance of the sound insulation module, especially in the area near the outside of the acoustic laboratory. Compared with the first damping gap (located in the inner direction of the acoustic laboratory), the existence of the second damping gap can effectively reduce the transmission of external noise to the inside, block external interference, and thus maintain the stability of the acoustic environment inside the laboratory. This design not only further absorbs the sound wave energy, reduces the reflection and propagation of sound waves, but also provides additional damping effects, which is beneficial to reducing the influence of low-frequency sound waves on the laboratory. Overall, by setting the first damping gap and the second damping gap, the present utility model not only improves the sound insulation performance of the acoustic laboratory but also enhances the resistance to external sound sources, ensures the accuracy and reliability of experimental data, and at the same time improves the stability and durability of the sound insulation module and extends its service life.

[0014] In a further preferred solution, a plurality of the first damping sound insulation boards are provided, and the plurality of first damping sound insulation boards are spliced together.

[0015] The effects of the above solution are as follows: The splicing design of multiple first damping sound insulation boards significantly improves the overall structure in terms of sound insulation performance and vibration damping effect. On the one hand, by connecting multiple sound insulation boards together, a more solid acoustic barrier is formed, which not only increases the effective blocking area but also, through mutual cooperation, enables more comprehensive processing of sound waves in different frequency bands. On the other hand, this structure can form resonance at different sound wave frequencies, optimizing the absorption and dissipation of sound waves, especially enhancing the processing ability for low-frequency sound waves. Moreover, the splicing method provides greater flexibility, facilitating adjustment and expansion according to actual needs to adapt to the space layout and sound insulation requirements of different acoustic laboratories, thereby improving the use efficiency and functionality of the laboratory.

[0016] In a further preferred solution, multiple of the first damping sound insulation boards are spliced to form a double-layer board structure, which includes a first layer board structure and a second layer board structure, and the first layer board structure and the second layer board structure are closely attached together.

[0017] The effects of the above solution are as follows: By splicing multiple first damping sound insulation boards to form a double-layer board structure and closely attaching the first layer board structure and the second layer board structure, the sound insulation and sound absorption performance are significantly enhanced. Among them, the close attachment design effectively reduces the propagation and reflection of sound waves between layers, improving the processing ability for low-frequency and medium-high-frequency sound waves and ensuring that the energy of sound waves in the structure is quickly converted into heat and dissipated. The double-layer structure increases the overall rigidity and stability, reducing the vibration and resonance caused by sound waves, thereby enhancing the service life and anti-interference ability. Therefore, the above setting not only provides better sound insulation effect for the acoustic laboratory but also optimizes the experimental environment, ensuring the accuracy and reliability of experimental data.

[0018] In a further preferred solution, the splicing seams of the first layer board structure are arranged in a staggered manner with the splicing seams of the second layer board structure.

[0019] The effects of the above solution are as follows: By arranging the splicing seams of the first layer board structure in a staggered manner with the splicing seams of the second layer board structure, the direct propagation of sound waves at the splicing seams can be effectively reduced, thus avoiding the sound leakage phenomenon caused by sound waves passing through the gaps. Moreover, the staggered design can increase the reflection and absorption of sound waves between layers, making the energy dissipation of sound waves inside the material more sufficient, and enhancing the comprehensive performance of sound insulation and sound absorption. In addition, the staggered arrangement also enhances the stability of the structure, reducing the resonance risk caused by vibration, further improving the overall performance and service life of the acoustic laboratory, and ensuring the high accuracy and reliability of experimental data.

[0020] In a further preferred embodiment, the second layer board structure is arranged between adjacent resistive fiber sound insulation blocks. A first resistive rubber-based damping strip is arranged between the first damping sound insulation board and the resistive fiber sound insulation blocks. The first resistive rubber-based damping strip is arranged on the side of the second layer board structure facing the resistive fiber sound insulation blocks, and both sides are respectively attached to the first damping sound insulation board and the resistive fiber sound insulation blocks.

[0021] The effects of the above solution are as follows: By arranging the second layer board structure near the resistive fiber sound insulation blocks and setting the first resistive rubber-based damping strip between the first damping sound insulation board and the resistive fiber sound insulation blocks, the vibration damping and sound insulation performance of the overall structure can be effectively enhanced. The setting of the first resistive rubber-based damping strip can form a vibration damping gap between the two, further reducing the propagation of sound waves at the connection, and at the same time optimizing the energy dissipation effect of the material. In addition, the design of the second layer board structure facing the resistive fiber sound insulation blocks enables sound waves to be repeatedly reflected and absorbed in the multi-layer structure before reaching the resistive fiber sound insulation blocks, thereby enhancing the attenuation effect of sound waves, not only improving the sound insulation effect, but also enhancing the stability and durability of the system, ensuring that the acoustic laboratory can achieve good acoustic performance within a wider frequency range.

[0022] In a further preferred embodiment, a plurality of second damping sound insulation boards are provided, and the structural configurations and position arrangements of the plurality of second damping sound insulation boards are the same as those of the plurality of first damping sound insulation boards.

[0023] The effects of the above solution are as follows: By providing a plurality of second damping sound insulation boards with the same structural configurations and position arrangements as the plurality of first damping sound insulation boards, the uniformity and symmetry of the overall sound insulation module are ensured, thereby optimizing the sound wave processing effect. This design not only enhances the overall strength and stability of the sound insulation board, but also makes the propagation path of sound waves inside the module more regular, reducing reflection and interference. In addition, the unified structural configuration makes the manufacturing and installation processes more convenient, improving production efficiency. At the same time, the setting of a plurality of second damping sound insulation boards also improves the overall sound insulation performance, especially when dealing with medium and high frequency sound waves, further enhancing the sound insulation effect of the acoustic laboratory and ensuring the quietness and stability of the experimental environment.

[0024] In a further preferred embodiment, a plurality of resistive fiber sound insulation blocks are provided, and the plurality of resistive fiber sound insulation blocks are horizontally spliced into a resistive fiber sound insulation structure, and adjacent resistive fiber sound insulation blocks are separated by resonance load-bearing keel strips.

[0025] The effects of the above solution are as follows: By setting multiple resistive fiber sound insulation blocks spliced horizontally to form a continuous resistive fiber sound insulation structure, the overall sound insulation performance and sound absorption effect can be effectively improved. The adjacent resistive fiber sound insulation blocks are separated by resonance load-bearing keel strips, which not only enhances the structural stability but also reduces the direct propagation of sound waves between different sound insulation blocks, thereby effectively reducing the reflection and resonance of sound waves. This design also optimizes the attenuation characteristics of sound waves, especially in the low-frequency band, ensuring better dissipation and conversion of sound waves during transmission. In addition, the setting of the keel strips also improves the installation flexibility and durability of the overall module, making the acoustic laboratory more reliable and long-lasting in practical applications.

[0026] The present utility model also provides an acoustic laboratory, which includes the resonance damping sound insulation module for acoustic laboratory as described above. Since the acoustic laboratory includes all the technical features of the above-mentioned resonance damping sound insulation module for acoustic laboratory, it also has all the technical effects of the above-mentioned resonance damping sound insulation module for acoustic laboratory, and will not be elaborated herein.

[0027] Compared with the prior art, the resonance damping sound insulation module for acoustic laboratory provided by the present utility model is composed of multiple pieces combined and spliced to form the wall sound insulation structure of the acoustic laboratory, including a first damping sound insulation board, a resistive fiber sound insulation block, and a second damping sound insulation board arranged in sequence from inside to outside, wherein the resonance frequencies of the first and second damping sound insulation boards are different; when sound waves strike the sound insulation board, the substrate vibrates and quickly transfers the energy to the internal damping material, causing friction and vibration between the materials, thereby converting the vibration into heat energy and dissipating it, realizing the damping characteristics, and further processing low-frequency sound waves through a relatively thin thickness. In addition, the resistive fiber sound insulation block is located between the two damping sound insulation boards, effectively filling the gap, forming a multi-layer acoustic barrier, and improving the overall sound insulation effect. At the same time, the sound absorption characteristics of the resistive fiber can absorb the energy of sound waves, reduce internal reflection and propagation, and optimize the damping effect. Its light weight reduces the overall weight of the module, reduces the requirements for the support structure, and improves the installation flexibility. The laminated design enables the module to finely adjust sound waves of different frequency bands, ensuring good acoustic effects within a wide frequency range. In addition, the resistive fiber sound insulation block enhances the connection strength between the two damping sound insulation boards, prevents loosening or deformation under the action of sound waves, and improves the stability and service life of the overall structure. Description of the Drawings

[0028] Figure 1 is the structural schematic diagram of the easily detachable sound absorption resonance structure disclosed in CN221298279U.

[0029] Figure 2 is the structural schematic diagram of the resonance damping sound insulation module for acoustic laboratory of the present utility model from perspective one.

[0030] Figure 3 This is a schematic structural diagram of the second perspective of the resonance damping sound insulation module for an acoustic laboratory of the present utility model. Detailed implementation manners

[0031] The present utility model provides a resonance damping sound insulation module and an acoustic laboratory for an acoustic laboratory. To make the objectives, technical solutions and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the attached drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] The present utility model provides a resonance damping sound insulation module for an acoustic laboratory. The module is designed to construct a sound insulation structure of multiple spliced walls; the module consists of three main parts (as Figure 2 shown): First is the first damping sound insulation board 100, which is designed to effectively absorb and convert sound energy when sound waves arrive; then is the resistive fiber sound insulation block 200, which has excellent sound absorption characteristics and can further reduce the reflection of sound waves; finally is the second damping sound insulation board 300, whose function complements that of the first damping sound insulation board 100 but has different resonance frequencies. This design enables the entire module to handle sound waves in a wide frequency range and gives full play to the advantages of each component.

[0033] The core effect of this solution is that when sound waves hit the module, they first cause the vibration of the first damping sound insulation board 100, and the vibration energy is quickly transmitted to the internal resistive fiber sound insulation block 200, exciting the friction and vibration inside the material, converting the energy of the sound waves into heat energy and dissipating it. In this way, even a relatively thin sound insulation board can effectively handle low-frequency sound waves. At the same time, by setting damping sound insulation boards and resistive fiber sound insulation blocks 200 with different vibration frequencies, the module can effectively handle both low-frequency and medium-high-frequency sound waves simultaneously. At the same time, the setting of the resistive fiber sound insulation block 200 not only fills the gap between the two sound insulation boards to form a multi-layer acoustic barrier, but also improves the overall sound insulation effect and structural stability. In addition, the lightweight design reduces the requirements for the support structure, enhances the installation flexibility, and makes the module more adaptable in practical applications.

[0034] For example, the resonance frequency of the first damping sound insulation board can be set at 50 Hz, which is suitable for dealing with low-frequency sound waves, while the resonance frequency of the second damping sound insulation board can be set at 200 Hz to effectively absorb medium and high-frequency sound waves. In this case, the function of the first damping sound insulation board is to mainly absorb low-frequency sound waves and convert them into heat energy, and the resistive fiber sound insulation block further reduces the reflection of sound waves to ensure that the sound waves do not reverberate inside the structure. The second damping sound insulation board is specifically designed to deal with medium and high-frequency sound waves, thus maximizing the overall sound insulation effect. Through this hierarchical design, each component can work together to significantly improve the sound insulation performance of the acoustic laboratory. It should be understood that the above content is only used to illustrate the technical effects of the present invention and is not used to limit the protection scope of the present invention. In actual applications, the specific resonance frequencies of the first damping sound insulation board and the second damping sound insulation board need to be flexibly configured according to the specific needs of the acoustic laboratory, and the present invention does not make specific limitations on this.

[0035] In a further preferred embodiment of the present invention, a first resistive rubber-based damping strip 410 (as shown in Figure 3 the figure) is provided between the first damping sound insulation board 100 and the resistive fiber sound insulation block 200, thereby forming a first damping gap. Specifically, this damping strip has the following functions: First, the first damping gap can effectively absorb and dissipate the minute vibrations caused by sound waves, significantly reducing the propagation of vibration energy between the two components, thereby enhancing the damping effect (the good elasticity and vibration absorption characteristics of the resistive rubber-based material enable it to effectively weaken the influence of sound waves within a specific frequency range, especially outstanding in dealing with low-frequency sound waves). In addition, this design improves the flexibility of the system, enabling the sound insulation module to better adapt to the needs of various acoustic environments, and thus achieving excellent sound insulation and damping effects within a wider frequency range. Finally, by introducing the resistive rubber-based damping strip, the overall sound insulation effect is enhanced, and the stability and durability of the system are also improved, extending the service life of the product.

[0036] Preferably, a second resistive rubber-based damping strip 420 (as shown in Figure 3As shown, it aims to form a second shock-absorbing gap between the two, thereby effectively reducing the transmission of sound waves and vibration effects. It can be understood that the alternative solutions for this embodiment include: 1) using traditional foam shock-absorbing materials to replace the resistive rubber-based shock-absorbing strip, which can effectively absorb and attenuate sound waves; 2) introducing an elastic rubber pad and utilizing its good elasticity and shock-absorbing performance to achieve the shock-absorbing effect; 3) using sound insulation cotton and directly filling it between the second damping sound insulation board 300 and the resistive fiber sound insulation block 200 to enhance the acoustic isolation performance; 4) using composite materials, such as the combination of polyurethane and sound insulation materials, to achieve better shock-absorbing and sound insulation effects. Through these alternative solutions, effective sound wave shock absorption and isolation effects can still be achieved.

[0037] The utility model provides a better shock-absorbing and sound insulation effect by setting a second resistive rubber-based shock-absorbing strip between the second damping sound insulation board 300 and the resistive fiber sound insulation block 200 to form a second shock-absorbing gap. Compared with the above alternative solutions, the resistive rubber-based material performs excellently in terms of elasticity and vibration absorption characteristics, and can effectively weaken the influence of sound waves in a wide frequency range, especially being more prominent in the low-frequency band. The specially designed shock-absorbing strip enables the sound insulation module to have stronger adaptability and flexibility when dealing with different acoustic environments.

[0038] It should be noted that the setting positions of the first shock-absorbing gap and the second shock-absorbing gap are different, and their functions are not completely the same. The first shock-absorbing gap is formed by the first resistive rubber-based shock-absorbing strip and is located on the inner side of the laboratory to reduce the transmission of sound waves into the laboratory and optimize the internal acoustic environment. The second shock-absorbing gap is formed by the second resistive rubber-based shock-absorbing strip and is located on the outer side of the laboratory. Its main function is to further reduce the intrusion of external noise and enhance the overall sound insulation effect. Through the internal and external double shock-absorbing structure, the sound insulation performance and stability of the overall system have been significantly improved, ensuring the ideal use conditions of the acoustic laboratory.

[0039] In specific implementation, a plurality of the first damping sound insulation boards 100 are provided, and the plurality of the first damping sound insulation boards 100 are spliced together. The splicing design of the plurality of the first damping sound insulation boards 100 significantly improves the sound insulation performance and shock-absorbing effect of the overall structure: on the one hand, by connecting a plurality of sound insulation boards together, a more solid acoustic barrier is formed, which not only increases the effective blocking area but also can, through mutual cooperation, achieve more comprehensive processing of sound waves in different frequency bands; on the other hand, this structure can form resonance at different sound wave frequencies, optimize the absorption and dissipation of sound waves, especially improving the processing ability of low-frequency sound waves; on the third hand, the splicing method provides greater flexibility, facilitating adjustment and expansion according to actual needs, adapting to the space layout and sound insulation requirements of different acoustic laboratories, and thus improving the use efficiency and functionality of the laboratory.

[0040] Preferably, a plurality of the first damping sound insulation boards 100 are spliced to form a double-layer board structure, which includes a first-layer board structure and a second-layer board structure, and the first-layer board structure and the second-layer board structure are closely attached together. By splicing a plurality of first damping sound insulation boards 100 to form a double-layer board structure and making the first-layer board structure and the second-layer board structure closely attached, the sound insulation and sound absorption performance are significantly enhanced; among them, the close attachment design effectively reduces the propagation and reflection of sound waves between layers, improves the processing ability of low-frequency and medium-high-frequency sound waves, and ensures that the energy of sound waves in the structure is quickly converted into heat energy and dissipated. The double-layer structure increases the overall rigidity and stability, reduces the vibration and resonance caused by sound waves, and thus improves the service life and anti-interference ability. Therefore, the above settings not only provide a better sound insulation effect for the acoustic laboratory, but also optimize the experimental environment and ensure the accuracy and reliability of experimental data.

[0041] Specifically, the splicing seams of the first-layer board structure are arranged in a staggered manner with the splicing seams of the second-layer board structure. By arranging the splicing seams of the first-layer board structure in a staggered manner with the splicing seams of the second-layer board structure, the direct propagation of sound waves at the splicing seams can be effectively reduced, thereby avoiding the sound leakage phenomenon formed by sound waves passing through the gaps. Moreover, the staggered design can increase the reflection and absorption of sound waves between layers, make the energy dissipation of sound waves inside the material more sufficient, and improve the comprehensive performance of sound insulation and sound absorption. In addition, the staggered arrangement also enhances the stability of the structure, reduces the resonance risk caused by vibration, further improves the overall performance and service life of the acoustic laboratory, and ensures the high accuracy and reliability of experimental data.

[0042] Furthermore, the second-layer board structure is arranged between the adjacent resistive fiber sound insulation blocks 200. A first resistive rubber-based damping strip 410 is arranged between the first damping sound insulation board 100 and the resistive fiber sound insulation block 200. The first resistive rubber-based damping strip 410 is arranged on the side of the second-layer board structure facing the resistive fiber sound insulation block 200, and both sides are respectively attached to the first damping sound insulation board 100 and the resistive fiber sound insulation block 200. By arranging the second-layer board structure close to the resistive fiber sound insulation blocks 200 and arranging a first resistive rubber-based damping strip 410 between the first damping sound insulation board 100 and the resistive fiber sound insulation block 200, the damping and sound insulation performance of the overall structure can be effectively enhanced. The setting of the first resistive rubber-based damping strip 410 can form a damping gap between the two, further reducing the propagation of sound waves at the connection, and at the same time optimizing the energy dissipation effect of the material. In addition, the design of the second-layer board structure facing the resistive fiber sound insulation block 200 enables sound waves to be repeatedly reflected and absorbed in the multi-layer structure before reaching the resistive fiber sound insulation block 200, thereby enhancing the attenuation effect of sound waves, not only improving the sound insulation effect, but also enhancing the stability and durability of the system, and ensuring that the acoustic laboratory can achieve good acoustic performance in a wider frequency range.

[0043] According to another aspect of the present utility model, a plurality of the second damping sound insulation boards 300 are provided, and the structural configurations and positional arrangements of the plurality of second damping sound insulation boards 300 are consistent with those of the plurality of first damping sound insulation boards 100. By providing the plurality of second damping sound insulation boards 300 with their structural configurations and positional arrangements consistent with those of the plurality of first damping sound insulation boards 100, the uniformity and symmetry of the overall sound insulation module are ensured, thereby optimizing the sound wave processing effect. This design not only enhances the overall strength and stability of the sound insulation board, but also makes the propagation path of sound waves inside the module more regular, reducing reflection and interference. In addition, the unified structural configuration makes the manufacturing and installation processes more convenient, improving production efficiency. At the same time, the provision of the plurality of second damping sound insulation boards 300 also improves the overall sound insulation performance, especially when dealing with medium and high frequency sound waves, further enhancing the sound insulation effect of the acoustic laboratory and ensuring the quietness and stability of the experimental environment.

[0044] In a further preferred embodiment of the present utility model, the resistive fiber sound insulation block 200 is composed of a plurality of units, and these units form an integral resistive fiber sound insulation structure in a transverse splicing manner. In this structure, adjacent resistive fiber sound insulation blocks 200 are isolated by resonance load-bearing keel strips to enhance their stability and vibration damping effect. Alternative solutions include: 1) other types of sound insulation materials, such as polyester fiber or foam materials, can be selected for splicing and isolation; 2) in addition to the resonance load-bearing keel strips, metal frames or plastic brackets can also be used to fix and separate the resistive fiber sound insulation blocks 200; 3) an interleaved splicing or staggered arrangement method can be adopted to increase the complexity of the structure and the effective sound insulation effect; 4) vibration damping materials, such as rubber gaskets or foam layers, can be added between adjacent sound insulation blocks to further improve the vibration damping performance.

[0045] The present utility model significantly enhances the sound insulation performance by laterally splicing a plurality of resistive fiber sound insulation blocks 200 and isolating them with resonance load-bearing keel strips. It performs excellently especially when dealing with low-frequency sound waves. The resonance load-bearing keel strips effectively disperse and absorb sound wave vibrations, reducing sound wave propagation, thereby enhancing the vibration damping effect. At the same time, this modular design enables it to flexibly adapt to the requirements of different acoustic environments, ensuring good acoustic effects. In addition, reasonable isolation and support enhance the connection strength between the resistive fiber sound insulation blocks 200, improving the stability and durability of the overall structure. The lightweight design makes installation more convenient, and later maintenance and replacement are also made easier.

[0046] In specific implementation, the thickness of the resistive fiber sound insulation block 200 is more than five times the thickness of the first damping sound insulation board 100 and the second damping sound insulation board 300. The larger thickness enables the resistive fiber sound insulation block 200 to effectively absorb and attenuate sound waves in a wider frequency range, especially outstanding in dealing with low-frequency sound waves. Due to the propagation characteristics of sound waves, materials with a larger thickness can provide stronger acoustic impedance, reduce the reflection and transmission of sound waves, and thus improve the sound insulation effect. In addition, the increase in thickness also enhances the structural strength of the material, enabling it to maintain stability during long-term use, reduce losses or deformations caused by vibrations, and thereby extend the service life. Generally speaking, this setting ensures that the sound insulation module can maintain excellent acoustic performance in different acoustic environments and improves the reliability and durability of the system.

[0047] The present utility model also provides an acoustic laboratory, which includes the resonance damping sound insulation module for an acoustic laboratory as described above. Since the acoustic laboratory includes all the technical features of the above-mentioned resonance damping sound insulation module for an acoustic laboratory, it also has all the technical effects of the above-mentioned resonance damping sound insulation module for an acoustic laboratory, and will not be elaborated here.

[0048] It should be understood that the application of the present utility model is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description. All such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A resonance damping sound insulation module for an acoustic laboratory, which is used for splicing multiple pieces to form a sound insulation structure of the wall of the acoustic laboratory, and is characterized in that, Comprising: A first damping sound insulation board, a resistive fiber sound insulation block, and a second damping sound insulation board arranged in sequence from inside to outside, wherein the resonance frequency of the first damping sound insulation board is different from that of the second damping sound insulation board.

2. The resonance damping and sound insulation module for an acoustic laboratory according to claim 1, wherein, A first resistive rubber-based damping strip is arranged between the first damping sound insulation board and the resistive fiber sound insulation block, and the first resistive rubber-based damping strip is used to form a first damping gap at the position where the first damping sound insulation board and the resistive fiber sound insulation block are not provided with the first resistive rubber-based damping strip.

3. The resonance damping and sound insulation module for an acoustic laboratory according to claim 1, characterized in that, A second resistive rubber-based damping strip is arranged between the second damping sound insulation board and the resistive fiber sound insulation block, and the second resistive rubber-based damping strip is used to form a second damping gap at the position where the second damping sound insulation board and the resistive fiber sound insulation block are not provided with the second resistive rubber-based damping strip.

4. The resonance damping and sound insulation module for an acoustic laboratory according to claim 1, characterized in that, A plurality of the first damping sound insulation boards are provided, and the plurality of first damping sound insulation boards are spliced together.

5. The resonance damping sound insulation module for an acoustic laboratory according to claim 4, characterized in that, The plurality of first damping sound insulation boards are spliced to form a double-layer board structure, the double-layer board structure includes a first layer board structure and a second layer board structure, and the first layer board structure and the second layer board structure are closely attached together.

6. The resonance damping sound insulation module for an acoustic laboratory according to claim 5, characterized in that, The splicing seams of the first layer board structure are arranged in a staggered manner with the splicing seams of the second layer board structure.

7. The resonance damping and sound insulation module for an acoustic laboratory according to claim 6, characterized in that The second layer board structure is arranged close to the resistive fiber sound insulation blocks. A first resistive rubber-based damping strip is arranged between the first damping sound insulation board and the resistive fiber sound insulation block. The first resistive rubber-based damping strip is arranged on the side of the second layer board structure facing the resistive fiber sound insulation block, and both sides are respectively attached to the first damping sound insulation board and the resistive fiber sound insulation block.

8. The resonance damping and sound insulation module for an acoustic laboratory according to any one of claims 4 to 7, characterized in that A plurality of the second damping sound insulation boards are provided, and the structural configuration and position arrangement of the plurality of second damping sound insulation boards are the same as those of the plurality of first damping sound insulation boards.

9. The resonance damping sound insulation module for an acoustic laboratory according to claim 1, characterized in that, A plurality of the resistive fiber sound insulation blocks are provided, and the plurality of resistive fiber sound insulation blocks are horizontally spliced into a resistive fiber sound insulation structure, and adjacent resistive fiber sound insulation blocks are separated by resonance load-bearing keel strips.

10. An acoustic laboratory, characterized in that, Comprising the resonance damping sound insulation module for an acoustic laboratory according to any one of claims 1 to 9.

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