Portable modular sound insulation device with adjustable sound insulation index and sound insulation index adjusting method

Abstract

The invention belongs to the field of sound insulation materials and structural acoustic performance design, and provides a portable modularized sound insulation device with adjustable sound insulation index, which can realize the adjustability of quality and sound insulation performance, and can realize rapid transportation and installation through a modularized light sound insulation device according to different application scenes under the condition of limited thickness. Different kinds of media such as liquid and gas are utilized to ingeniously achieve on-site adjustment of the quality of the sound insulation unit, and the requirements for the surface density of heavy and light sound insulation devices in different application scenes are met; and the temperature control unit is used for controlling the temperature of the sound insulation medium, so that the sound insulation device has the temperature adjusting capability.

Description

Technical Field

[0001] The invention belongs to the field of sound insulation material and structural acoustic performance design, and in particular relates to a portable modular sound insulation device with adjustable sound insulation, which is used for quickly constructing a sound insulation environment within a full frequency band. Background Art

[0002] Sound insulation control is the main technical means to control the noise propagation path, and it is also a hot topic in traditional research. In the 19th century, the physicist Rayleigh's masterpiece "Theory of Sound" first derived the mass law formula for thin wall sound insulation. Later, Cremer found that the projection wavelength of the sound wave and the bending wavelength of the plate have a coincidence effect, further improving the mass law, and conducting research on the sound insulation performance of double-layer and multi-layer lightweight composite structures. The low-frequency sound insulation performance can be improved by stiffness and damping control within a certain frequency range, but it is still impossible to get rid of the mass law within the full frequency range. At present, traditional sound insulation technology can effectively achieve mid- and high-frequency noise control, but low-frequency noise has a long wavelength and strong penetration, and the sound insulation is controlled by stiffness and mass. For lightweight wall structures, it is difficult to achieve low-frequency high sound insulation.

[0003] For sound insulation materials and structures, in the medium and low frequency range below 500Hz, since their performance is controlled by the law of stiffness and mass, high sound insulation means a larger surface density and higher structural stiffness. On the one hand, generally lightweight sound insulation walls have a large area, and their stiffness and surface density are not high, and their sound insulation capacity is limited; on the other hand, the stiffness and surface density of heavy structures are greatly increased, but the transportation and installation links are extremely inconvenient. Therefore, in actual use, it is time-consuming and labor-intensive; for certain materials and structures, under limited thickness conditions, it is impossible to improve their low-frequency sound insulation performance by adjusting the mass surface density on site, and the design flexibility is insufficient.

[0004] Sound insulation materials are often used together with sound absorbing and heat preservation materials to further improve their sound absorption and heat preservation capabilities, but they cannot adjust the indoor ambient temperature and need to rely on the indoor air conditioning system to control the ambient temperature. In addition, existing sound insulation equipment cannot achieve electromagnetic shielding, which limits the application environment of existing sound insulation equipment. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a portable modular sound insulation device with adjustable sound insulation, which can achieve adjustable quality and sound insulation performance. According to different application scenarios, under limited thickness conditions, modular lightweight sound insulation devices can be used to achieve rapid transportation and installation; different types of media such as liquids and gases are used to cleverly achieve on-site adjustment of the sound insulation unit quality, and meet the requirements for the surface density of heavy and lightweight sound insulation devices in different application scenarios; the temperature of the sound insulation medium is controlled by a temperature control unit, so that the sound insulation device also has a certain range of temperature adjustment capabilities, and no longer relies on the indoor air conditioning system for ambient temperature control.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A portable modular sound insulation device with adjustable sound insulation, characterized in that it mainly comprises an installation module, a sound insulation module 5 and a temperature control module; a plurality of installation modules 1 are quickly spliced ​​together by a locking device, the installation module 1 is a lightweight square frame, comprising two front and rear installation surfaces, and the sound insulation module 5 is installed on the installation surface of the installation module; the sound insulation module 5 is a box-shaped structure integrally formed of a polymer material, and its outer dimensions are the same as those of the installation module 1, a reinforcing rib 6 is arranged inside the sound insulation module 5, a medium inlet and a medium outlet are arranged on the sound insulation module, the medium inlets of the plurality of modules are connected to form an inlet pipeline through a hose, and the medium outlets of the plurality of modules are connected to form an outlet pipeline through a hose; the sound insulation unit 5 is connected to form an outlet pipeline through a hose; The inlet pipeline is connected to the medium source to fill the sound insulation medium, and the sound insulation medium is discharged through the outlet pipeline; the sound insulation medium is gas or liquid, and the sound insulation amount is adjusted by changing the material of the sound insulation medium; the temperature control module includes a temperature control device and a circulation pump. When the temperature of the sound insulation medium needs to be controlled, the outlet pipeline is connected to the inlet of the temperature control module, the inlet pipeline is connected to the outlet of the temperature control module, and the circulation pump is turned on to circulate the sound insulation medium temperature-regulated by the temperature control device into the temperature control module to achieve temperature control of the sound insulation medium; the temperature of the sound insulation module changes with the sound insulation medium, thereby adjusting the sound insulation amount of the sound insulation module; the temperature control module can achieve constant temperature of the sound insulation medium at multiple temperature points and provide a stable temperature environment.

[0008] Furthermore, a conductive material may be added to the fluid sound insulation medium to achieve electromagnetic shielding; the conductive material is a metal or a salt.

[0009] Furthermore, valves are provided on the medium inlet and the medium outlet to control the flow rate and on-off of the fluid medium; the inlet pipeline includes multiple three-way joints and multiple sections of polymer hoses slightly larger than the distance between the medium inlets of the two sound insulation modules, so as to realize the rapid installation of the inlet pipeline; the outlet pipeline includes multiple three-way joints and multiple sections of polymer hoses slightly larger than the distance between the medium outlets of the two sound insulation modules, so as to realize the rapid installation of the outlet pipeline; sealing strips are also pasted around the sound insulation module to prevent sound leakage, and the sealing strips are made of damping material.

[0010] Furthermore, the edge of the sound insulation module is a mortise and tenon structure, and adjacent sound insulation modules are spliced ​​together through the mortise and tenon structure, thereby reducing sound leakage at the joints of adjacent sound insulation modules.

[0011] Furthermore, the locking device includes a locking spring 4, a locking buckle 2 and an insert locking knob 3; both sides of the installation module are installation surfaces, and the sound insulation module is installed on one or two installation surfaces according to different sound insulation and load-bearing requirements.

[0012] Furthermore, the gas medium is used for high-frequency sound insulation, and the characteristic impedance is less than 200N·S / m3, and the gas medium is helium or hydrogen.

[0013] The liquid medium is used for medium and low frequency sound insulation, and its characteristic impedance is greater than 1×106N·S / m3. The liquid medium is water or silicone oil.

[0014] The surface density of the installation module 1 does not exceed 15 kg / m2, and can be spliced ​​into structural load-bearing frames of different sizes according to actual scenarios.

[0015] The sound insulation module 5 is made of a polymer material with a Young's modulus of not less than 1 GPa and a density of not more than 1300 kg / m3.

[0016] Furthermore, screw holes are provided at corresponding positions of the mounting surface of the mounting module and the sound insulation module for fixing the sound insulation module by screws.

[0017] Furthermore, an integrally formed protrusion structure is provided on the mounting surface of the mounting module, and a corresponding position of the sound insulation module is a groove. The sound insulation module is fixed to the mounting module by plugging, and there is no relative slip between the two after fixation.

[0018] Furthermore, the sound insulation device also includes an exhaust device, which is used to exhaust the pipe system when the sound insulation medium is liquid, so as to ensure that the sound insulation module is filled with liquid.

[0019] Based on the above-mentioned sound insulation device, the present application also provides a method for achieving adjustable sound insulation, the specific steps are:

[0020] In the first step, a sound insulation environment is constructed using a sound insulation module, a mounting module and a temperature control module according to the application site. The sound insulation module is installed on one side or both sides of the mounting module according to the sound insulation amount.

[0021] The second step is to select a sound insulation medium according to the required sound insulation frequency. The gas medium is used for high-frequency sound insulation and has a characteristic impedance of less than 200 N·S / m3.

[0022] The liquid medium is used for medium and low frequency sound insulation, and its characteristic impedance is greater than 1.0×106N·S / m3.

[0023] The third step is to add metal materials or salts to the liquid medium to achieve electromagnetic shielding when magnetic shielding is required according to the magnetic shielding requirements of the sound insulation environment.

[0024] The fourth step is to turn on the temperature control module according to the sound insulation environment requirements, adjust the temperature of the sound insulation environment, and change the sound insulation performance of the sound insulation module through the temperature of the sound insulation medium. Specifically: when the temperature decreases, the modulus of the sound insulation module increases, the structural stiffness increases, and the low-frequency sound insulation performance controlled by stiffness can be improved; when the temperature of the sound insulation module increases, the modulus decreases, the structural stiffness decreases, and the resonance frequency decreases. When the resonance frequency is lower than the lowest excitation frequency of the sound source, the influence of resonance on the sound insulation performance can be reduced.

[0025] Beneficial Effects

[0026] 1. The sound insulation device of the present invention is a lightweight structure and is easy to transport;

[0027] Second, the modular design can realize the rapid assembly of the overall sound insulation device;

[0028] 3. According to the actual application scenario, the sound insulation module can be installed on one or two mounting surfaces of the mounting module by filling different liquids and gaseous media to achieve a flexible effect of adjustable quality and sound insulation;

[0029] 4. It is equipped with a temperature control module, which can achieve stable temperature control while adjusting the sound insulation. By utilizing the property that the modulus of polymer materials changes with temperature, the modulus of polymer materials is controlled by adjusting the temperature to adjust its sound insulation. The indoor temperature of the sound insulation environment can be adjusted to play the role of air conditioning.

[0030] 5. The box-shaped sound insulation unit can be located on the front and rear sides of the installation module to form a double-layer sound insulation device. Compared with the homogeneous structure with the same surface density, the impedance mismatch of the interlayer air layer can be used to further improve its sound insulation. To a certain extent, it breaks through the limitation of the mass law. A double-layer lightweight structure with a lower surface density can be used to achieve the sound insulation effect of a single-layer uniform heavy structure, further realizing lightweighting.

[0031] 6. Sound insulation and magnetic shielding can be achieved simultaneously by adding magnetic shielding materials to the liquid sound insulation medium.

[0032] The above-mentioned performance of achieving overall structural quality and adjustable sound insulation function by controlling the filling medium has greatly enriched the use functions of traditional sound insulation devices and can meet the use requirements of various application scenarios through simple combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the installation module of the present invention;

[0034] Figure 2 It is a schematic diagram of splicing two installation modules of the present invention;

[0035] Figure 3 This is a schematic diagram of the sound insulation module of the present invention:

[0036] Figure 4 Schematic diagram of the sound insulation module of the present invention installed on the mounting module

[0037] Figure 5 It is a front view schematic diagram of a sound insulation curtain wall formed by splicing 16 box-shaped sound insulation modules and installation modules of the present invention;

[0038] Figure 6 It is a schematic diagram of the back side of the sound insulation curtain wall formed by splicing 16 box-shaped sound insulation modules and the installation module of the present invention.

[0039] In the figure: 1. Installation module; 2. Locking buckle; 3. Locking knob; 4. Locking spring; 5. Sound insulation unit module; 6. Sound insulation module reinforcement rib; 7. Positioning screw hole; 8. Sealing strip or mortise and tenon structure; 9. Installation module positioning pin (hole). DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described below through specific embodiments in conjunction with the accompanying drawings.

[0041] Embodiment 1:

[0042] like Figure 1-6 As shown, the mounting module, the sound insulation module 5 and the temperature control module; the multiple mounting modules 1 are quickly spliced ​​by a locking device, the mounting module 1 is a lightweight square frame with a certain thickness, and the sound insulation module 5 is installed on a mounting surface on one side of the mounting module; the sound insulation module 5 is a box-shaped structure integrally formed of a polymer material, and its outer dimensions are the same as those of the mounting module 1, and a reinforcing rib 6 is arranged inside the sound insulation module 5. The sound insulation module is provided with a medium inlet and a medium outlet, and the medium inlets of the multiple modules are connected to the inlet pipeline through a hose, and the medium outlets of the multiple modules are connected to the outlet pipeline through a hose; the sound insulation unit 5 is connected to the medium source filling insulation through the inlet pipeline The sound insulation medium is discharged through the outlet pipe; the sound insulation medium is gas or liquid, and the sound insulation amount is adjusted by changing the material of the sound insulation medium; the temperature control module includes a temperature control device and a circulation pump. When the temperature of the sound insulation medium needs to be controlled, the outlet pipe is connected to the inlet of the temperature control module, the inlet pipe is connected to the outlet of the temperature control module, and the circulation pump is turned on to circulate the sound insulation medium whose temperature is adjusted by the temperature control device into the temperature control module to realize the temperature control of the sound insulation medium; the temperature of the sound insulation module changes with the sound insulation medium, thereby adjusting the sound insulation amount of the sound insulation module; the temperature control module can realize the constant temperature of the sound insulation medium at multiple temperature points, and provide a stable temperature environment.

[0043] Conductive materials such as metals or salts can be added to the fluid sound insulation medium to achieve electromagnetic shielding.

[0044] Valves are provided on both the medium inlet and the medium outlet to control the flow rate and on-off of the fluid medium; the inlet pipeline includes multiple three-way joints and multiple sections of polymer hoses slightly larger than the distance between the medium inlets of the two sound insulation modules, so as to realize the rapid installation of the inlet pipeline. The outlet pipeline includes multiple three-way joints and multiple sections of polymer hoses slightly larger than the distance between the medium outlets of the two sound insulation modules, so as to realize the rapid installation of the outlet pipeline.

[0045] The selection of sound insulation medium is calculated in the main frequency range of actual sound insulation. When used for high-frequency sound insulation, a gas medium with a characteristic impedance less than 200N·S / m3 is used, such as helium, hydrogen, etc., but considering safety, helium is recommended; when used for medium and low frequency sound insulation, a liquid medium with a characteristic impedance greater than 1×106N·S / m3 is used, such as water, silicone oil, etc. Water is recommended because it is convenient and economical.

[0046] The installation module 1 uses a surface density not exceeding 15kg / m2, such as a lightweight alloy material, and is spliced ​​into structural load-bearing frames of different sizes according to actual scenarios.

[0047] The sound insulation module 5 is made of polymer materials such as PP and PE with a Young's modulus of not less than 1GPa and a density of not more than 1300kg / m3. Both sides of the installation module are installation surfaces. According to different sound insulation and load-bearing requirements, the sound insulation module can be installed on one or two installation surfaces.

[0048] Embodiment 2, based on embodiment 1, sealing strips are further pasted around the sound insulation module to prevent sound leakage, and the sealing strips are made of damping material.

[0049] Embodiment 3, based on embodiment 1, the edge of the sound insulation module can be a mortise and tenon structure, and adjacent sound insulation modules 5 are spliced ​​together through the mortise and tenon structure to reduce sound leakage at the joints of adjacent sound insulation modules.

[0050] Embodiment 4, as Figure 1-2 As shown, on the basis of the first embodiment or the second embodiment or the third embodiment, screw holes 7 are provided at the corresponding positions of the mounting surface of the mounting module and the sound insulation module for fixing the sound insulation module by screws.

[0051] Embodiment 5: Figure 2 , 4 As shown, on the basis of Example 1 or Example 2 or Example 3, an integrally formed raised positioning pin structure is provided on the mounting surface of the mounting module, and the corresponding position of the mounting module is a positioning hole groove. The mounting module is fixed to another mounting module in a plug-in manner through the positioning pin (hole) 9 thereon, and there is no relative slip between the two after fixation.

[0052] Embodiment 6, on the basis of embodiment 4 or embodiment 5, an exhaust valve is provided on the outlet pipeline, or the outlet pipeline is connected to a vacuum pump to form an exhaust device, which is used to evacuate the gas in the sound insulation module to ensure that the sound insulation module is filled with liquid. The operation steps are: before starting to inject the liquid sound insulation medium, close the medium inlet valve, open the medium outlet valve, open the exhaust valve on the outlet pipeline or connect the outlet pipeline to a vacuum pump, turn on the vacuum pump, and extract the air or other gas in the sound insulation module.

[0053] Embodiment 7: Based on the above-mentioned sound insulation device, the present application further provides a method for achieving adjustable sound insulation, the specific steps are as follows:

[0054] The first step is to build a sound insulation environment using sound insulation modules, installation modules and temperature control modules according to the application site.

[0055] Overall design indicators:

[0056] 1. The building structure is a rectangular room with an adjustable area of ​​6-60 square meters and a height of not less than 2 meters;

[0057] 2. After the building structure is completed, its sound insulation can be adjusted within the range of 30-45dB; and the size and shape of any part of the building cannot be changed;

[0058] 3. The load-bearing capacity per unit area of ​​the ground is ≤100kg, and the sound insulation is ≥30dB; the load-bearing capacity per unit area of ​​the ground is ≤200kg, and the sound insulation is ≥45dB.

[0059] According to the above design indicators, the frame surface density is used as the design variable. Under the design constraints such as shape, size, and installation method of sound insulation modules, the finite element topology optimization technology is used to optimize the lightweight and high-strength structure of the lightweight alloy frame unit. The mold is processed according to the design results, and the lightweight alloy frame unit is made by the die casting process.

[0060] After the processing of the light alloy frame unit is completed, the spring locks are processed according to the drawing on the frame between adjacent units using a machining center, which are used to seal and lock the structural load-bearing frame. There are no less than 2 connecting locks between adjacent frames; bolt holes or plug-in plates are processed at corresponding positions on both sides inside and outside the thickness direction of the light alloy frame unit according to the drawing to fix the box-shaped sound insulation unit of the sound insulation module.

[0061] According to the actual application scenario, the lightweight alloy frame units of the structural load-bearing frame are spliced ​​into the corresponding configuration according to the drawing using spring locks to provide overall structural strength and support the entire sound insulation device.

[0062] Design and processing method of sound insulation module:

[0063] The sound insulation module is composed of polymer box-shaped sound insulation units. The sound insulation module is first tested for weighted sound insulation according to the sound insulation test method specified in the standard "GBT 19889.3-2005 Acoustic Building and Building Component Sound Insulation Measurement Part 3: Laboratory Measurement of Airborne Sound Insulation of Building Components" to achieve the design goal: the sound insulation is adjustable within the range of 30-45dB, and then the box-shaped sound insulation module is determined in terms of external dimensions and internal structure, and the sealed box installation structure in embodiments 2 to 5 is adopted. According to the design results, mold processing is performed, and the polymer box-shaped sound insulation unit is made by a compression molding process.

[0064] The second step is to select a sound insulation medium according to the required sound insulation frequency. In this embodiment, water is selected as the sound insulation medium.

[0065] The third step is to add metal materials or salts to the liquid medium to achieve electromagnetic shielding according to the magnetic shielding requirements of the sound insulation environment, when magnetic shielding is required. Since magnetic shielding is not required in this embodiment, it is not necessary to add magnetic shielding materials to the sound insulation medium.

[0066] Step 4: Assemble and control temperature

[0067] 4.1 Assemble the processed installation structure into an integrated installation structure frame according to the drawing;

[0068] 4.2 Close the medium inlet valve, open the medium outlet valve, and fix the processed sound insulation module on the installation structure frame according to the drawing;

[0069] 4.3 Assemble the inlet and outlet pipes according to the drawings and connect them to the medium inlet and outlet at the corresponding positions respectively;

[0070] 4.4 After exhausting each sound insulation module through the outlet pipeline, close the medium outlet valve;

[0071] 4.5 Open the medium inlet of each sound insulation module and inject water through the inlet pipe;

[0072] 4.6 After the injection of the sound insulation medium is completed, connect the inlet and outlet pipes to the temperature control module, open the medium outlet valve, and realize the temperature control of the sound insulation device through the temperature control module.

[0073] With the sound insulation device designed in the present application, when the sound insulation unit is not filled with water, the load per unit area of ​​the ground is ≤100kg, and the sound insulation is ≥30dB; when the sound insulation unit is filled with water, the load per unit area of ​​the ground is ≤200kg, and the sound insulation is ≥45dB, thereby achieving adjustable sound insulation.

[0074] The above embodiments are only used to illustrate the present invention, wherein the structure, location and connection mode of each component may be changed. Any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A portable modular sound insulation device with adjustable sound insulation, characterized in that: It includes an installation module, a sound insulation module (5) and a temperature control module; A plurality of installation modules (1) are spliced ​​together by means of a locking device, wherein the installation module (1) is a light square frame comprising two installation surfaces, and the sound insulation module (5) is installed on the installation surface of the installation module; The sound insulation module (5) is a box-shaped structure integrally formed of a polymer material, and its external dimensions are the same as those of the installation module (1). A reinforcing rib (6) is provided inside the sound insulation module (5). A medium inlet and a medium outlet are provided on the sound insulation module. The medium inlets of a plurality of sound insulation modules (5) are connected to form an inlet pipeline through a hose, and the medium outlets of a plurality of sound insulation modules are connected to form an outlet pipeline through a hose. The sound insulation module (5) is connected to a medium source through the inlet pipeline, and the sound insulation medium is discharged through the outlet pipeline. The sound insulation medium is gas or liquid. The temperature control module includes a temperature control device and a circulation pump. The outlet pipeline is connected to the inlet of the temperature control module, the inlet pipeline is connected to the outlet of the temperature control module, the temperature control device is connected to the circulation pump, and the sound insulation medium whose temperature has been adjusted by the temperature control device is circulated to the temperature control module through the circulation pump.

2. The portable modular sound insulation device with adjustable sound insulation according to claim 1, characterized in that: The fluid sound insulation medium includes a conductive material; the conductive material is a metal or a salt.

3. The portable modular sound insulation device with adjustable sound insulation according to claim 1, characterized in that: Valves are provided on the medium inlet and the medium outlet to control the flow rate and on-off of the fluid medium; the inlet pipeline includes a plurality of three-way joints and a plurality of sections of polymer hoses slightly larger than the distance between the medium inlets of the two sound insulation modules, so as to realize the rapid installation of the inlet pipeline; the outlet pipeline includes a plurality of three-way joints and a plurality of sections of polymer hoses slightly larger than the distance between the medium outlets of the two sound insulation modules, so as to realize the rapid installation of the outlet pipeline; sealing strips are also pasted around the sound insulation module to prevent sound leakage, and the sealing strips are made of damping material.

4. According to claim 1, the portable modular sound insulation device with adjustable sound insulation, the edge of the sound insulation module is a mortise and tenon structure, and adjacent sound insulation modules are spliced ​​together through the mortise and tenon structure to reduce sound leakage at the joints of adjacent sound insulation modules.

5. The portable modular sound insulation device with adjustable sound insulation according to claim 1, characterized in that: The locking device includes a locking spring 4, a locking buckle 2 and an insert locking knob 3; both sides of the installation module are installation surfaces, and the sound insulation module is installed on one or two installation surfaces according to different sound insulation and load-bearing requirements.

6. The portable modular sound insulation device with adjustable sound insulation according to any one of claims 1 to 5, characterized in that: The gas medium is used for high-frequency sound insulation, and the characteristic impedance is less than 200N·S / m3, and the gas medium is helium or hydrogen; The liquid medium is used for medium and low frequency sound insulation, and its characteristic impedance is greater than 1×106N·S / m3. The liquid medium is water or silicone oil; The surface density of the installation module (1) does not exceed 15 kg / m2, and can be spliced ​​into structural load-bearing frames of different sizes according to actual scenarios; The sound insulation module (5) is made of a polymer material with a Young's modulus of not less than 1 GPa and a density of not more than 1300 kg / m3.

7. The portable modular sound insulation device with adjustable sound insulation according to claim 6, characterized in that: Screw holes are provided at the mounting surface of the mounting module and at corresponding positions of the sound insulation module for fixing the sound insulation module by screws.

8. According to claim 6, the mounting surface of the mounting module is provided with an integrally formed protrusion structure, and the corresponding position of the sound insulation module is a groove, and the sound insulation module is fixed to the mounting module by plugging, and there is no relative slip between the two after fixation.

9. The portable modular sound insulation device with adjustable sound insulation according to claim 6, characterized in that: It also includes an exhaust device for exhausting the pipeline system when the sound insulation medium is liquid, so as to ensure that the sound insulation module is filled with liquid.

10. A method for adjusting the sound insulation of a portable sound insulation module, using the portable modular sound insulation device according to any one of claims 7 to 9, characterized in that The steps include: The first step is to build a sound insulation environment using a sound insulation module, a mounting module and a temperature control module according to the application site. The sound insulation module is installed on one side or both sides of the mounting module according to the sound insulation amount; The second step is to select a sound insulation medium according to the required sound insulation frequency, wherein the gas medium is used for high-frequency sound insulation and has a characteristic impedance of less than 200 N·S / m3; The liquid medium is used for medium and low frequency sound insulation, and the characteristic impedance is greater than 1.0×106N·S / m3; The third step is to add metal materials or salts to the liquid medium to achieve electromagnetic shielding according to the magnetic shielding requirements of the sound insulation environment when magnetic shielding is required; The fourth step is to turn on the temperature control module according to the sound insulation environment requirements, adjust the temperature of the sound insulation environment, and change the sound insulation performance of the sound insulation module through the temperature of the sound insulation medium. Specifically: when the temperature decreases, the modulus of the sound insulation module increases, the structural stiffness increases, and the low-frequency sound insulation performance controlled by stiffness can be improved; when the temperature of the sound insulation module increases, the modulus decreases, the structural stiffness decreases, and the resonance frequency decreases. When the resonance frequency is lower than the lowest excitation frequency of the sound source, the influence of resonance on the sound insulation performance can be reduced.

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