Sound insulation structure, curtain wall system and curtain wall sound insulation method

Abstract

The invention relates to a sound insulation structure, a curtain wall system and a curtain wall sound insulation method, the sound insulation structure is used between a building structure and a curtain wall structure, and the sound insulation structure comprises a sound insulation plate layer, a damping layer, a vibration reduction layer and a metal sound insulation plate; the sound insulation board layer, the damping layer and the vibration reduction layer are combined and stacked to form a sound insulation assembly. The metal sound insulation plate is used for being fixedly arranged between a building structure and a curtain wall structure, and the outer side end face of the metal sound insulation plate is connected with the sound insulation assembly. The air cavity is formed between the damping layer and the sound insulation board layer adjacent to the damping layer or between the damping layer and the vibration reduction layer adjacent to the damping layer, and the sound insulation board has the advantage that the sound insulation effect is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of curtain wall structure sound insulation, in particular to a sound insulation structure, a curtain wall system and a curtain wall sound insulation method. Background Art

[0002] With the development of high-rise buildings, the number of residential buildings with curtain wall structures is increasing. However, the gap formed by the supporting connection between the curtain wall structure and the building structure has caused serious sound leakage problems, reducing the sound insulation performance of adjacent rooms and affecting the work and life of residents. Especially when there is no decorative surface layer between the curtain wall structure and the building, the sound can be transmitted unimpeded. Even after a certain degree of decoration, the sound insulation is still less than 30 decibels, which is difficult to meet the relevant standard requirements.

[0003] In order to enhance the sound insulation effect, the existing scheme for sound insulation of curtain wall structure and building gap is mainly to fill rock wool inside the structure to absorb and reduce the propagation of sound; at the same time, galvanized steel plate is used as fireproof and sound insulation layer, which can block the penetration of sound while playing a fireproof effect. In addition, aluminum plate and gypsum board are used as outer decorative panels, which can play a certain role in sound insulation while playing a decorative effect. That is, in the existing sound insulation system, the main sound insulation effect is the rock wool filled inside the structure, and the galvanized steel plate used as the fireproof and sound insulation layer. In addition, the outer device board plays a certain role in sound insulation.

[0004] However, studies have shown that the sound insulation effect of the above-mentioned sound insulation system is obviously insufficient when it comes to high-intensity noise sources, especially between adjacent residential units, where noise interference may still exist. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a sound insulation structure, a curtain wall system and a curtain wall sound insulation method.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A sound insulation structure, used between a building structure and a curtain wall structure, comprises a sound insulation board layer, a damping layer, a vibration reduction layer and a metal sound insulation board;

[0008] The sound insulation board layer, the damping layer and the vibration reduction layer are stacked together to form a sound insulation assembly;

[0009] The metal sound insulation board is used to be fixed between the building structure and the curtain wall structure, and the outer end surface of the metal sound insulation board is connected to the sound insulation component;

[0010] It also includes an air cavity, which is formed between the damping layer and the adjacent sound insulation board layer or between the damping layer and the adjacent vibration reduction layer.

[0011] Preferably, one end surface of the damping layer has a plurality of recessed areas, and a raised rib is formed between two adjacent recessed areas;

[0012] From the opening position of the recessed area to the thickness direction of the damping layer, the cross-sectional area of ​​the recessed area gradually decreases;

[0013] The raised ribs are against or connected to the sound insulation board layer or the vibration reduction layer.

[0014] Preferably, foaming holes are formed inside the vibration-damping layer;

[0015] and / or,

[0016] A concavo-convex texture structure is formed on the surface of the vibration-damping layer.

[0017] Preferably, the diameter of the foaming pores is less than 80 μm, and the density of the foaming pores is between 80 and 1000 pores / cm 3 ;

[0018] and / or,

[0019] Along the thickness direction of the vibration damping layer, the foamed holes are distributed in at least two layers.

[0020] Preferably, it also includes a sealing connection structure;

[0021] The metal sound insulation board is connected to the damping layer or the vibration reduction layer through the sealing connection structure;

[0022] The outer side of the entire sound insulation structure is arranged as the sound insulation board layer.

[0023] Preferably, the sealing connection structure comprises at least a first sealing strip, a second sealing strip and a third sealing strip;

[0024] The first sealing strip is bonded to the peripheral side of the metal sound insulation board;

[0025] The second sealing strip is connected to the peripheral sides of the damping layer and the vibration reduction layer, and is bonded to the metal sound insulation board.

[0026] Preferably, the damping layer includes a plurality of damping units, and the sealing connection structure further includes a third sealing strip, and the third sealing strip is connected between adjacent damping units;

[0027] and / or,

[0028] The vibration-damping layer includes a plurality of vibration-damping units, and the sealing connection structure also includes a third sealing strip, wherein the third sealing strip is connected between adjacent vibration-damping units.

[0029] Preferably, the sealing connection structure further comprises an auxiliary sealant which fills and cures between the irregular joints of the sound insulation structure.

[0030] A curtain wall system comprises a building structure and a curtain wall structure, and also comprises the above-mentioned sound insulation structure; the sound insulation structure is connected between the building structure and the curtain wall structure.

[0031] A curtain wall sound insulation method based on a curtain wall system comprises the following steps:

[0032] Fixing metal sound insulation panels between the building structure and the curtain wall structure;

[0033] The sound insulation board layer, the damping layer and the vibration reduction layer are stacked together outside the metal sound insulation board to form a sound insulation assembly, and an air cavity is formed at least between the damping layer and its adjacent sound insulation board layer or between the damping layer and its adjacent vibration reduction layer.

[0034] Preferably, stacking the sound insulation board layer, the damping layer and the vibration reduction layer on the outer side of the metal sound insulation board specifically comprises the following steps:

[0035] At least one vibration reduction layer is connected to the outer end surface of the metal sound insulation board;

[0036] At least one damping layer is connected to the end surface of the vibration reduction layer away from the metal sound insulation board;

[0037] At least one sound insulation board layer is connected to an end surface of the damping layer on one side away from the vibration reduction layer, and an end surface of the damping layer on one side with a concave area faces the sound insulation board layer.

[0038] Preferably, the method further comprises the following steps:

[0039] Using a first sealing strip of the sealing connection structure to seal the peripheral side of the metal sound insulation board;

[0040] The second sealing strip of the sealing connection structure is used to seal the peripheral side of the damping layer, the peripheral side of the vibration reduction layer, between the damping layer and the metal sound insulation board, and between the vibration reduction layer and the metal sound insulation board;

[0041] The plurality of damping units forming the damping layer are sealed and connected by using the third sealing strip of the sealing connection structure, and / or the plurality of damping units forming the damping layer are sealed and connected by using the third sealing strip of the sealing connection structure.

[0042] Preferably, the method further comprises the following steps: using auxiliary sealant to fill and solidify between irregular joints of the sound insulation structure.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows: the sound insulation structure provided by the above scheme cooperates with the sound insulation board layer, the damping layer, the vibration reduction layer and the metal partition layer, wherein the sound insulation board layer and the metal sound insulation board can play a supporting role to ensure the installation stability between the various layer structures while absorbing and blocking the residual low-frequency sound waves; the damping layer can introduce a certain resistance in the entire system based on energy dissipation and resistance, thereby consuming energy and slowing down the propagation of vibration, suppressing the overall resonance amplitude, and enhancing the effect of isolating the remaining full-frequency sound waves, and the air cavity formed between the damping layer and the adjacent sound insulation board layer, or the damping layer and the adjacent vibration reduction layer, can further increase the effect of vibration absorption and sound insulation; the vibration reduction layer can effectively suppress the resonance effect and avoid the generation of noise between structures. At the same time, due to the certain force generated during its elastic reset process, it can achieve noise reduction by consuming sound energy. Correspondingly, the curtain wall system provided by the above scheme has a good sound insulation effect. Correspondingly, the curtain wall sound insulation method provided by the even-number scheme can also achieve a good sound insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0046] Figure 2 for Figure 1 Schematic diagram of the structure of the middle damping layer.

[0047] Figure 3 for Figure 2 A magnified schematic diagram of the D1 position in the figure.

[0048] Figure 4 for Figure 1 Schematic diagram of the enlarged D2 position.

[0049] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0050] Figure 6 This is a schematic diagram of the structure of the third embodiment of the present invention.

[0051] Figure 7 This is a structural diagram of embodiment 4 of the present invention.

[0052] Figure 8 This is a structural diagram of Embodiment 5 of the present invention.

[0053] Fig. 9 This is a structural diagram of embodiment 6 of the present invention.

[0054] Fig.10 This is a structural diagram of Embodiment 7 of the present invention.

[0055] Fig.11 This is a structural diagram of Embodiment 8 of the present invention.

[0056] Fig.12 This is a schematic diagram of the structure of Embodiment 9 of the present invention.

[0057] Fig.13 It is a schematic diagram of the structure of the tenth embodiment of the present invention.

[0058] Fig.14 This is a schematic diagram of the structure of the eleventh embodiment of the present invention.

[0059] Fig.15 It is a structural diagram of the twelfth embodiment of the present invention.

[0060] Fig.16 for Fig.15 Explosion diagram.

[0061] Description of reference numerals:

[0062] 100. Building structure; 200. Curtain wall structure; 1. Sound insulation board layer; 2. Damping layer; 21. Recessed area; 22. Raised ribs; 23. Damping unit; 3. Vibration reduction layer; 31. Foaming holes; 32. Vibration reduction unit; 4. Metal sound insulation board; 5. Sealing connection structure; 51. First sealing strip; 52. Second sealing strip; 53. Third sealing strip. DETAILED DESCRIPTION

[0063] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0065] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] Embodiment 1

[0067] See also Figures 1 to 4 The embodiment of the present invention provides a sound insulation structure, which is used between a building structure and a curtain wall structure, specifically, a sound insulation board layer 1, a damping layer 2, a vibration reduction layer 3 and a metal sound insulation board 4. The sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are stacked together to form a sound insulation assembly; the metal sound insulation board 4 is used to be fixed between the building structure 100 and the curtain wall structure 200, and the outer end surface of the metal sound insulation board 4 is connected to the sound insulation assembly to form a whole sound insulation structure. It also includes an air cavity, which is formed between the damping layer 2 and the adjacent sound insulation board layer 1 or the damping layer 2 and the adjacent vibration reduction layer 3.

[0068] In the above scheme, the sound insulation board layer 1, the damping layer 2, the vibration reduction layer 3 and the metal partition layer 4 cooperate with each other, wherein the sound insulation board layer 1 and the metal sound insulation board 4 can play a supporting effect to ensure the installation stability between each layer structure, while absorbing and blocking the residual low-frequency sound waves; the damping layer 2 can introduce a certain resistance in the whole system based on the energy dissipation and resistance effect, thereby consuming energy and slowing down the propagation of vibration, suppressing the overall resonance amplitude, and enhancing the effect of isolating the remaining full-frequency sound waves, and the air cavity formed between the damping layer 2 and the adjacent sound insulation board layer 1, or the damping layer 2 and the adjacent vibration reduction layer 3, can further increase the effect of vibration absorption and sound insulation; the vibration reduction layer 3 can effectively suppress the resonance effect and avoid the generation of noise between structures. At the same time, since a certain force is generated during its elastic reset process, noise reduction can be achieved by consuming sound energy.

[0069] There are many ways to stack the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3. For the convenience of explanation, the direction away from the building structure is "outside" and the direction close to the curtain wall structure is "inside" (see Figure 1 ), in this embodiment, the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are each provided with only one layer, and from the outside to the inside, the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are stacked and connected in sequence.

[0070] Specifically, the sound insulation board layer 1 is set to be a non-metallic sound insulation material, such as a medium-high density calcium silicate board or a cement board. The density of the sound insulation board layer 1 can be set to 1g / cm 3 , 1.4g / cm 3 , 1.7g / cm 3 or 2g / cm 3 The density of the sound insulation board layer 1 is 1.0-2.0g / cm 3 Within the range.

[0071] Specifically, the damping layer 2 has a plurality of concave areas 21 on one end surface, and a convex rib 22 is formed between two adjacent concave areas 21; the cross-sectional area of ​​the concave area 21 gradually decreases from the opening position of the concave area 21 to the thickness direction of the damping layer 2; the convex rib 22 abuts against or is connected to the sound insulation board layer 1 or the vibration reduction layer 3. It can be understood that the area between the concave area 21 and the sound insulation board layer 1 corresponds to the area where the air cavity is formed.

[0072] Furthermore, the recessed area 21 is set to be pyramid-shaped (the cross-section is a rectangle with a gradually decreasing area), and the recessed area 21 can be regularly distributed on the end surface of the damping layer 2. Specifically, a grid pattern damping process is adopted to achieve different viscous damping characteristics in a limited damping layer thickness through a variable cross-section method.

[0073] Furthermore, the thickness of the damping layer 2 can be set to 0.5 mm, 1 mm, 1.5 mm, 2 mm, 3 mm, 4 mm or 5 mm. It is understandable that the thickness of the damping layer 2 can be 0.5 mm-5 mm.

[0074] It is worth noting that viscous damping is mainly generated by friction inside the material. When the damping structure is subjected to external excitation, the molecules inside the material will move relative to each other, thereby generating friction and consuming sound energy. The grid texture of the damping layer 2 (i.e., the recessed area 21) is bonded with the sound insulation board layer 1 to form a variable cross-section air cavity structure, which can play a role in vibration absorption and sound insulation, thereby enhancing the damping effect for all frequencies. When the whole is excited by external sound energy, in addition to the energy consumption of the material itself from the damping layer 2, the air cavity can also play a role in sound wave energy consumption to achieve a good sound insulation effect. In addition, the damping layer 2 is compounded with the sound insulation board layer 1 to form a high-quality damping structure. When consuming or absorbing vibration energy, it carries the high-density sound insulation board to generate energy dissipation. According to the law of conservation of energy, the damping layer 2 compounded with the high-density sound insulation board layer 1 can greatly increase the vibration absorption and vibration elimination, and increase the beneficial effect of full-frequency sound insulation.

[0075] In addition, it is worth noting that the variable cross-section air cavity structure formed between the recessed area 21 and the sound insulation board layer 1 can break the direct propagation path of the sound wave, causing the sound wave to be reflected and scattered multiple times in the cavity, thereby increasing the propagation distance and energy consumption of the sound wave. This structure can also form a resonance cavity for sound waves of different frequencies, effectively absorbing sound waves of a specific frequency, and further improving the noise reduction effect.

[0076] See also Figure 2 and Figure 3 In this embodiment, the sharp edges and corners of the raised ribs 22 enable the raised ribs 22 to more effectively disperse and withstand pressure when subjected to external forces, thereby better resisting external impact and deformation. It should be understood that the recessed area 21 is set in a pyramid shape, the raised ribs 22 have better support effect and anti-deformation energy, the entire structure has a longer service life, and can maintain a good sound insulation effect for a long time.

[0077] Of course, in other embodiments, the recessed area 21 may also be configured to be in an arc shape, a cone shape, a hemispherical shape, etc. The recessed areas 21 may also be irregularly distributed on the damping layer 2 .

[0078] See also Figure 1 and Figure 4 , foaming holes 31 are formed inside the vibration-damping layer 3. Specifically, the vibration-damping layer 3 can be made of polyurethane microporous foam material, which is used to reduce the secondary vibration energy generated by the sound wave bombarding the surface layer, reduce the transmission and transmission of the secondary vibration, and suppress the resonance of the sound insulation material. The foaming holes 31 are formed inside the vibration-damping layer 3 and are a closed hole structure.

[0079] Furthermore, the foaming holes 31 are set to regular shapes such as circular hole structures, rectangular holes, polygonal holes, etc., and then utilize their uniform geometric characteristics to more effectively disperse and reflect sound waves, reduce the direct transmission of sound waves, and thus improve the sound insulation effect. Of course, in other embodiments, the foaming holes 31 can also be set to irregular shaped cavities, which can induce scattering and diffraction of sound waves, further increase the propagation path of sound waves in the material, and thus consume more sound energy. It can be understood that regular shapes are also convenient for design and manufacturing, ensuring the consistency and predictability of materials.

[0080] Specifically, the diameter of the foaming pores 31 is less than 80 μm, and the density of the foaming pores 31 is between 80 and 1000 pores / cm 3 .

[0081] Furthermore, along the thickness direction of the vibration-damping layer 3, the foaming holes 31 are distributed in at least two layers, and each layer of foaming holes 31 is evenly distributed in the vibration-damping layer 3.

[0082] It is worth noting that the size of the foaming hole 31 directly affects the resonance frequency and amplitude of the sound waves inside it. A larger air cavity may allow a lower frequency sound wave to resonate, while a smaller air cavity may have a better absorption effect on high-frequency sound waves. The size and distribution of the foaming hole 31 can be set according to actual needs, for example, multiple layers are set, and foaming holes 31 of different diameters are distributed in different layers.

[0083] Of course, in other embodiments, the surface of the vibration-damping layer 3 may also be formed with a concave-convex texture structure, and the corresponding air cavity structure may be formed by laminating the vibration-damping layer 3 with its adjacent layer structure.

[0084] It should be understood that after the structure of this embodiment is applied, when the sound wave hits the sound insulation board layer 1, the partition board layer 1 begins to vibrate. At this time, the damping layer 2 and the vibration reduction layer 3 are continuously subjected to stress, effectively converting the mechanical energy of the sound wave into heat energy, reducing the propagation energy of the sound wave, and thus achieving the purpose of sound insulation. In particular, due to the characteristics of the non-uniform and non-connected bubbles inside the vibration reduction layer 3, the damping layer 2 and the vibration reduction layer 3 can selectively absorb sound waves in some frequency bands, especially in the language frequency range (170-4000Hz). This selective absorption effect is particularly significant, so that the overall design of the structure of the present invention not only improves the sound insulation, but also realizes the differentiated isolation of sound waves in different frequency bands, ensuring the voice privacy between adjacent rooms, helping to protect personal privacy and prevent the leakage of sensitive information. Moreover, the damping layer 2 and the vibration reduction layer 3 themselves or the air cavity structure formed by stacking can cause multiple reflections and scattering of sound waves during propagation, thereby reducing the clarity of the voice. This makes it difficult to clearly identify and understand even if the sound can penetrate the sound insulation structure, thereby enhancing the protection of voice privacy.

[0085] Embodiment 2

[0086] See also Figure 5 Based on the above embodiment 1, the difference of this embodiment is that: the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are each provided with only one layer, and from the outside to the inside, the sound insulation board layer 1, the vibration reduction layer 3 and the damping layer 2 are stacked and connected in sequence.

[0087] Embodiment 3

[0088] See also Figure 6 Based on the above embodiment 1, the difference of this embodiment is that the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are all provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the damping layer 2, the vibration reduction layer 3, the sound insulation board layer 1, the damping layer 2, the vibration reduction layer 3 are stacked and connected in sequence.

[0089] Embodiment 4

[0090] See also Figure 7Based on the above embodiment 1, the difference of this embodiment is that the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are all provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the vibration reduction layer 3 and the damping layer 2, the sound insulation board layer 1, the vibration reduction layer 3 and the damping layer 2 are stacked and connected in sequence.

[0091] Embodiment 5

[0092] See also Figure 8 Based on the above embodiment 1, the difference of this embodiment is that the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are each provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the damping layer 2, the vibration reduction layer 3, the sound insulation board layer 1, the vibration reduction layer 3 and the damping layer 2 are stacked and connected in sequence.

[0093] Embodiment 6

[0094] See also Fig. 9 Based on the above embodiment 1, the difference of this embodiment is that the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are each provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the vibration reduction layer 3, the damping layer 2, the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are stacked and connected in sequence.

[0095] Embodiment 7

[0096] See also Fig.10 Based on the above embodiment 1, the difference of this embodiment is that: the vibration reduction layer 3 is provided with only one layer, the sound insulation board layer 1 and the damping layer 2 are provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the damping layer 2, the sound insulation board layer 1, the damping layer 2, and the vibration reduction layer 3 are stacked and connected in sequence.

[0097] Embodiment 8

[0098] See also Fig.11 Based on the above embodiment 1, the difference of this embodiment is that: the vibration reduction layer 3 is only provided with one layer, the sound insulation board layer 1 and the damping layer 2 are both provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the damping layer 2, the sound insulation board layer 1, the vibration reduction layer 3, and the damping layer 2 are stacked and connected in sequence.

[0099] Embodiment 9

[0100] See also Fig.12 Based on the above embodiment 1, the difference of this embodiment is that: the vibration reduction layer 3 and the damping layer 2 are each provided with only one layer, and the sound insulation board layer 1 is provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the sound insulation board layer 1, the damping layer 2, and the vibration reduction layer 3 are stacked and connected in sequence.

[0101] Embodiment 10

[0102] See also Fig.13Based on the above embodiment 1, the difference of this embodiment is that: the vibration reduction layer 3 and the damping layer 2 are each provided with only one layer, and the sound insulation board layer 1 is provided with two layers, and from the outside to the inside, the sound insulation board layer 1, the sound insulation board layer 1, the vibration reduction layer 3, and the damping layer 2 are stacked and connected in sequence.

[0103] Embodiment 11

[0104] See also Fig.14 Based on the above embodiment 1, the difference of this embodiment is that: since the entire sound insulation structure is formed by stacking, in order to avoid the gaps between the structures from reducing the sound insulation effect, in this embodiment, it also includes a sealing connection structure 5; the metal sound insulation board 4 is connected to the damping layer 2 or the vibration reduction layer 3 through the sealing connection structure 5; the outer side of the entire sound insulation structure is set as a sound insulation board layer 1.

[0105] The sealing connection structure 5 can be directly set as a high-density phononic crystal sealing strip, or can be set to be formed by curing a high-density phononic crystal sealant. It is understandable that the regular gaps between the structures can be formed by using a high-density phononic crystal sealing strip, and the irregular non-standard joint positions can be formed by curing a high-density phononic crystal sealant.

[0106] Specifically, the sealing connection structure 5 at least includes a first sealing strip 51, a second sealing strip 52 and a third sealing strip 53; the first sealing strip 51 is bonded to the peripheral side of the metal sound insulation board 4; the second sealing strip 52 is connected to the peripheral sides of the damping layer 2 and the vibration reduction layer 3, and is bonded to the metal sound insulation board 4. The first sealing strip 51 can be set as a strip-shaped or frame-shaped high-density phononic crystal sealing strip, and the second sealing strip 52 can be set as an L-shaped high-density phononic crystal sealing strip.

[0107] Further, in order to facilitate installation and production, the damping layer 2 includes a plurality of damping units 23, and the sealing connection structure 5 further includes a third sealing strip 53, which is connected between adjacent damping units 23; similarly, the vibration reduction layer 3 includes a plurality of vibration reduction units 32, and the sealing connection structure 5 further includes a third sealing strip 53, which is connected between adjacent vibration reduction units 32. Specifically, the third sealing strip 53 can be set as a T-shaped high-density phononic crystal sound insulation sealing strip.

[0108] Furthermore, the sealing connection structure 5 also includes an auxiliary sealant that fills and solidifies between the irregular joints of the sound insulation structure, and the auxiliary sealant is a high-density phononic crystal sealant.

[0109] Embodiment 12

[0110] See also Fig.15 and Fig.16Based on the above-mentioned embodiments 1 to 11, this embodiment further provides a curtain wall system, including a building structure 100 and a curtain wall structure 200, and also including the above-mentioned sound insulation structure, which is connected between the building structure 100 and the curtain wall structure 200.

[0111] Specifically, both sides of the building structure 100 are provided with sound insulation structures, which can be symmetrically distributed or set to different structures. One end of the metal sound insulation board 4 is connected to the building structure 100, and the other end is connected to the curtain wall structure 200. Filling material 300 is filled between two adjacent metal sound insulation boards 4. The curtain wall structure 200 includes a curtain wall profile 201 and a curtain wall glass 202.

[0112] Furthermore, it also includes an outer decoration layer 400 and an outer decoration filling layer 500, and from the outside to the inside, the outer decoration layer 400, the outer decoration filling layer 500 and the sound insulation structure are arranged in sequence.

[0113] In order to verify the effect of the sound insulation structure in this application, several curtain wall systems (application examples) and conventional curtain wall systems (comparative examples) using the above sound insulation structure were selected for experimental verification, as follows:

[0114] Application Example 1

[0115] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5. Specifically, the sound insulation structure on one side is arranged from the inside to the outside in sequence as follows: a layer of 1.5mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2mm thick vibration reduction layer 3 (microporous foaming process vibration reduction), a layer of 2mm thick damping layer 2 (grid pattern process damping), a layer of 10mm thick and sealed with a density of 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1); the sound insulation structure on the other side is set from the inside to the outside: a layer of 1.5mm thick galvanized steel plate (metal sound insulation board 4), a layer of 2mm thick damping layer 2 (grid pattern damping), a layer of 2mm thick vibration reduction layer 3 (microporous foaming process vibration reduction), a layer of 10mm thick density 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1). A cavity is formed between the two metal sound insulation boards 4, and the width of the cavity can be 100 mm, 130 mm or 160 mm. The filling material 300 in the cavity is sound-absorbing cotton.

[0116] In this application, the sound insulation can reach 46 decibels, the curtain wall system has good full-frequency noise reduction effect, and has good resistance to external impact and vibration.

[0117] Application Example 2

[0118] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5. Specifically, the sound insulation structure on one side is arranged from the inside to the outside in sequence as follows: a layer of 1.5 mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2 mm thick vibration reduction layer (microporous foaming process vibration reduction), a layer of 2 mm thick damping layer (grid pattern process damping), a layer of 10 mm thick and 1.4 g / cm 3 Calcium silicate board (sound insulation board layer 1), a 2mm thick vibration reduction layer (microporous foaming process vibration reduction), a 2mm thick damping layer (grid pattern damping), a 10mm thick layer with a density of 1.7g / cm 3 The sound insulation structure on the other side is set from the inside to the outside in the following order: a 1.5mm thick galvanized steel plate (metal sound insulation board 4), a 2mm thick damping layer (grid pattern damping), a 2mm thick vibration reduction layer (microporous foaming vibration reduction), a 10mm thick layer with a density of 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1), a 2mm thick damping layer (grid pattern damping), a 2mm thick vibration reduction layer (microporous foaming vibration reduction), a 10mm thick layer with a density of 1.7g / cm 3 Calcium silicate board (sound insulation board layer 1).

[0119] In this application, the sound insulation can reach 58 decibels, the curtain wall system has good noise reduction effect at all frequencies, and has good resistance to external impact and vibration. The curtain wall system has good noise reduction effect at all frequencies, and has good resistance to external impact and vibration.

[0120] Application Example 3

[0121] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5. Specifically, the sound insulation structure on one side is arranged from the inside to the outside in sequence as follows: a layer of 1.5 mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2 mm thick vibration reduction layer (microporous foaming process vibration reduction), a layer of 2 mm thick damping layer (grid pattern process damping), a layer of 10 mm thick and 1.4 g / cm 3 Calcium silicate board (sound insulation board layer 1), a 2mm thick damping layer (grid pattern damping), a 10mm thick layer with a density of 1.7g / cm 3 The sound insulation structure on the other side is set from the inside to the outside in the following order: a 1.5mm thick galvanized steel plate (metal sound insulation board 4), a 2mm thick damping layer (grid pattern damping), a 2mm thick vibration reduction layer (microporous foaming vibration reduction), a 10mm thick layer with a density of 1.4g / cm 3Calcium silicate board (sound insulation board layer 1), a 2mm thick damping layer (grid pattern damping), a 10mm thick layer with a density of 1.7g / cm 3 Calcium silicate board (sound insulation board layer 1).

[0122] In this application, the sound insulation can reach 54 decibels, the curtain wall system has good noise reduction effect at all frequencies, and has good resistance to external impact and vibration. The curtain wall system has good noise reduction effect at all frequencies, and has good resistance to external impact and vibration.

[0123] Application Example 4

[0124] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5. Specifically, the sound insulation structure on one side is arranged from the inside to the outside in sequence as follows: a layer of 1.5 mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2 mm thick vibration reduction layer (microporous foaming process vibration reduction), a layer of 2 mm thick damping layer (grid pattern process damping), a layer of 10 mm thick and 1.4 g / cm 3 Calcium silicate board (sound insulation board layer 1), one layer with a thickness of 10mm and a density of 1.7g / cm 3 The sound insulation structure on the other side is set from the inside to the outside in the following order: a 1.5mm thick galvanized steel plate (metal sound insulation board 4), a 2mm thick damping layer (grid pattern damping), a 2mm thick vibration reduction layer (microporous foaming vibration reduction), a 10mm thick layer with a density of 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1), one layer with a thickness of 10mm and a density of 1.7g / cm 3 Calcium silicate board (sound insulation board layer 1).

[0125] In this application, the sound insulation can reach 48 decibels, the curtain wall system has good full-frequency noise reduction effect, and good resistance to external impact and vibration. The curtain wall system has relatively good full-frequency noise reduction effect, and relatively good resistance to external impact and vibration.

[0126] Comparative application example 1

[0127] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5, but the sound insulation structures on both sides are arranged in different ways. Specifically, the sound insulation structure on one side is arranged from the inside to the outside in sequence as follows: a layer of 1.5mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2mm thick damping layer 2, a layer of 10mm and sealed with a density of 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1); the sound insulation structure on the other side is set from the inside to the outside: a layer of 1.5mm thick galvanized steel plate (metal sound insulation board 4), a layer of 2mm thick damping layer 2, a layer of 10mm thick with a density of 1.4g / cm3 Calcium silicate board (sound insulation board layer 1). A cavity is formed between the two metal sound insulation boards 4, and the width of the cavity can be 100mm, 130mm or 160mm. The filling material 300 in the cavity is sound-absorbing cotton.

[0128] In this scheme, the experimental sound insulation value is 42 decibels, the curtain wall system has poor vibration noise attenuation and poor ability to resist external impact and vibration.

[0129] Comparative Application Example 2

[0130] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5, but the sound insulation structures on both sides are arranged in different ways. Specifically, the sound insulation structure on one side is arranged from the inside to the outside in sequence as follows: a layer of 1.5mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2mm thick vibration reduction layer 3, a layer of 10mm and sealed with a density of 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1); the sound insulation structure on the other side is set from the inside to the outside: a layer of 1.5mm thick galvanized steel plate (metal sound insulation board 4), a layer of 2mm thick vibration reduction layer 3, a layer of 10mm thick density 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1). A cavity is formed between the two metal sound insulation boards 4, and the width of the cavity can be 100mm, 130mm or 160mm. The filling material 300 in the cavity is sound-absorbing cotton.

[0131] In this scheme, the experimental sound insulation value is 43 decibels. The noise attenuation caused by occasional self-vibration of the curtain wall system is poor, and its ability to resist external impact and vibration is poor.

[0132] Comparative Application Example 3

[0133] Both sides of the building structure 100 are provided with sound insulation structures, and the sound insulation structures on both sides are soundproofed and sealed by a sealing connection structure 5, but the sound insulation structures on both sides are arranged in different ways. The sound insulation structure on one side is arranged from the inside to the outside in sequence: a layer of 1.5mm thick galvanized steel plate (metal sound insulation board 4), a layer of 2mm thick damping layer, a layer of 10mm thick and 1.4g / cm 3 Calcium silicate board (sound insulation board layer 1), a 2mm thick damping layer (grid pattern damping), a 10mm thick layer with a density of 1.7g / cm 3 The sound insulation structure on the other side is set from the inside to the outside in the following order: a 1.5mm thick galvanized steel plate (metal sound insulation board 4), a 2mm thick damping layer (grid pattern damping), a 10mm thick and 1.4g / cm 3Calcium silicate board (sound insulation board layer 1), a 2mm thick damping layer (grid pattern damping), a 10mm thick layer with a density of 1.7g / cm 3 Calcium silicate board (sound insulation board layer 1).

[0134] In this scheme, the experimental sound insulation value is 45 decibels, the vibration noise attenuation of the curtain wall system is relatively poor, and the ability to resist external impact and vibration is relatively poor.

[0135] Comparative Application Example 4

[0136] The two sides of the building structure 100 are arranged in sequence from the inside to the outside: a layer of 1.5mm thick galvanized steel plate (metal sound insulation plate 4), a layer of 2.5mm thick aluminum plate (external decorative layer 400), the cavity between the galvanized steel plate and the aluminum plate is filled with sound-absorbing cotton, and sound insulation sealing is used between the galvanized steel plate and the aluminum plate.

[0137] In this scheme, the experimental sound insulation is 39 decibels, the mid- and low-frequency sound insulation is small, and resonance is easily generated between structures.

[0138] Comparative Application Example 5

[0139] The two sides of the building structure 100 are arranged in sequence from the inside to the outside: a layer of 1.5 mm thick galvanized steel plate (metal sound insulation board 4), two layers of gypsum board (sound insulation board layer 1), and sound insulation sealing is used between the galvanized steel plate and the gypsum board.

[0140] In this scheme, the experimental sound insulation is 35 decibels, and the sound insulation in mid- and low-frequency is small.

[0141] Comparative Application Example 6

[0142] The two sides of the building structure 100 are arranged in sequence from the inside to the outside: a layer of 1.5 mm thick galvanized steel plate (metal sound insulation board 4), a layer of gypsum board (sound insulation board layer 1), and sound insulation sealing is used between the galvanized steel plate and the gypsum board.

[0143] In this scheme, the experimental sound insulation is 28 decibels, and the sound insulation in mid- and low-frequency is small.

[0144] Combining the above application examples and comparative application examples (considering the sound insulation structures on both sides, wherein the structures such as the cavity and the filling material 300 filled in the cavity are considered to be the same and are not considered), a general summary is as follows:

[0145]

[0146]

[0147] Based on the above-mentioned Application Example 1, Comparative Application Example 1 and Comparative Application Example 2, it can be known that compared with setting a single-layer damping layer 2 or a single-layer vibration reduction layer 3, the way in which the damping layer 2 and the vibration reduction layer 3 cooperate with each other makes the full-frequency noise reduction effect good, the ability to resist external impact and vibration is good, and the sound insulation is higher.

[0148] Based on the above application example 1 and comparative application example 3, it can be known that, compared with the double-layer damping layer 2 and sound insulation layer board 1, the single-layer sound insulation board layer 1, the damping layer 2, and the shock-absorbing layer 3 cooperate with each other, and a better sound insulation effect can be obtained with a smaller thickness and fewer layers of the entire curtain wall structure.

[0149] Based on the above application examples 1 to 4, compared with comparative application examples 1 to 6, it can be seen that when the damping layer 2 and the vibration reduction layer 3 of the present structure are not provided, even when the outer decorative layer 400 and the outer decorative filling layer 500 are provided, there is resonance and sound leakage, and the sound insulation of different combinations is 28 decibels to 39 decibels within the test frequency range, which is lower than 40 decibels. When a single layer of damping layer 2 or vibration reduction layer 3 is provided, the sound insulation is 42 decibels to 45 decibels within the test frequency range. Although there is a certain improvement, it still cannot meet the sound insulation requirement higher than 45 decibels.

[0150] In summary, compared with the conventional combination, this solution improves the sound insulation by 4 decibels to 13 decibels (46-42=4dB, 58-45=13dB), and can achieve better sound insulation effect within a reasonable thickness range, with better economy.

[0151] It is worth noting that in the process of the above-mentioned different application examples, the test environment, test method and test equipment must be kept consistent to ensure the accuracy and reliability of the comparison results. The comparison method adopts the standard sound insulation test method, and the sound insulation of the comparison sample and the sample of the present invention is measured respectively under the same sound source and receiving point arrangement. The sound insulation is expressed in decibels (dB), which indicates the sample's ability to block sound waves.

[0152] This embodiment also discloses a curtain wall sound insulation method of a curtain wall system, comprising the following steps:

[0153] A metal sound insulation board 4 is fixed between the building structure 100 and the curtain wall structure 200;

[0154] The sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are stacked together on the outside of the metal sound insulation board 4 to form a sound insulation assembly, and an air cavity is formed at least between the damping layer 2 and the adjacent sound insulation board layer 1 or between the damping layer 2 and the adjacent vibration reduction layer 3.

[0155] Specifically, the sound insulation board layer 1, the damping layer 2 and the vibration reduction layer 3 are stacked on the outside of the metal sound insulation board 4, which specifically includes the following steps:

[0156] At least one vibration reduction layer 3 is connected to the outer end surface of the metal sound insulation board 4;

[0157] At least one damping layer 2 is connected to the end surface of the vibration reduction layer 3 away from the metal sound insulation board 4;

[0158] At least one sound insulation board layer 1 is connected to the end surface of the damping layer 2 away from the vibration reduction layer 3 , and the end surface of the damping layer 2 having the concave area 21 faces the sound insulation board layer 1 .

[0159] Specifically, the curtain wall sound insulation method of this embodiment also includes the following steps:

[0160] The first sealing strip 51 of the sealing connection structure 5 is used to seal the peripheral side of the metal sound insulation board 4;

[0161] The second sealing strip 52 of the sealing connection structure 5 is used to seal the peripheral side of the damping layer 2, the peripheral side of the vibration reduction layer 3, and between the damping layer 2 and the metal sound insulation board 4, and between the vibration reduction layer 3 and the metal sound insulation board 4;

[0162] The plurality of damping units 23 forming the damping layer 2 are sealed and connected by the third sealing strip 53 of the sealing connection structure 5 , and / or the plurality of damping units 32 forming the damping layer 3 are sealed and connected by the third sealing strip 53 of the sealing connection structure 5 .

[0163] Specifically, the curtain wall sound insulation method of this embodiment also includes the following steps:

[0164] Auxiliary sealant is used to fill and cure between irregular joints of the sound insulation structure.

[0165] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A sound insulation structure, used between a building structure (100) and a curtain wall structure (200), characterized in that: It comprises a sound insulation board layer (1), a damping layer (2), a vibration reduction layer (3) and a metal sound insulation board (4); The sound insulation board layer (1), the damping layer (2) and the vibration reduction layer (3) are stacked together to form a sound insulation component; The metal sound insulation board (4) is used to be fixedly installed between the building structure (100) and the curtain wall structure (200), and the outer end surface of the metal sound insulation board (4) is connected to the sound insulation component; It also comprises an air cavity, wherein the air cavity is formed between the damping layer (2) and the adjacent sound insulation board layer (1) or between the damping layer (2) and the adjacent vibration reduction layer (3).

2. A sound insulation structure according to claim 1, characterized in that: The damping layer (2) has a plurality of recessed areas (21) on one end surface thereof, and a raised rib (22) is formed between two adjacent recessed areas (21); From the opening position of the recessed area (21) toward the thickness direction of the damping layer (2), the cross-sectional area of ​​the recessed area (21) gradually decreases; The raised ribs (22) abut against or are connected to the sound insulation board layer (1) or the vibration reduction layer (3).

3. A sound insulation structure according to claim 1, characterized in that: The vibration-damping layer (3) has foaming holes (31) formed inside; and / or, The surface of the vibration-damping layer (3) is formed with a concave-convex texture structure.

4. A sound insulation structure according to claim 3, characterized in that: The diameter of the foaming pores is less than 80 μm, and the density of the foaming pores (31) is between 80 and 1000 / cm3; and / or, Along the thickness direction of the vibration-damping layer (3), the foaming holes (31) are distributed in at least two layers.

5. A sound insulation structure according to any one of claims 1 to 4, characterized in that: It also includes a sealing connection structure (5); The metal sound insulation board (4) is connected to the damping layer (2) or the vibration reduction layer (3) via the sealing connection structure (5); The outer side of the entire sound insulation structure is provided with the sound insulation board layer (1).

6. A sound insulation structure according to claim 5, characterized in that: The sealing connection structure (5) comprises at least a first sealing strip (51), a second sealing strip (52) and a third sealing strip (53); The first sealing strip (51) is bonded to the peripheral side of the metal sound insulation board (4); The second sealing strip (52) is connected to the peripheral sides of the damping layer (2) and the vibration reduction layer (3), and is bonded to the metal sound insulation board (4).

7. A sound insulation structure according to claim 5, characterized in that: The damping layer (2) comprises a plurality of damping units (23), and the sealing connection structure (5) further comprises a third sealing strip (53), wherein the third sealing strip (53) is connected between adjacent damping units (23); and / or, The vibration-damping layer (3) comprises a plurality of vibration-damping units (32), and the sealing connection structure (5) further comprises a third sealing strip (53), wherein the third sealing strip (53) is connected between adjacent vibration-damping units (32).

8. A sound insulation structure according to claim 5, characterized in that: The sealing connection structure (5) also includes an auxiliary sealant that fills and solidifies between the irregular joints of the sound insulation structure.

9. A curtain wall system, comprising a building structure (100) and a curtain wall structure (200), characterized in that: It also comprises the sound insulation structure as described in any one of claims 1 to 8; the sound insulation structure is connected between the building structure (100) and the curtain wall structure (200).

10. A curtain wall sound insulation method based on the curtain wall system according to claim 9, characterized in that: The following steps are involved: A metal sound insulation board (4) is fixed between the building structure (100) and the curtain wall structure (200); The sound insulation board layer (1), the damping layer (2) and the vibration reduction layer (3) are stacked together on the outside of the metal sound insulation board (4) to form a sound insulation assembly, and an air cavity is formed at least between the damping layer (2) and the adjacent sound insulation board layer (1) or between the damping layer (2) and the adjacent vibration reduction layer (3).

11. The curtain wall sound insulation method according to claim 10, characterized in that: The sound insulation board layer (1), the damping layer (2) and the vibration reduction layer (3) are stacked together on the outside of the metal sound insulation board (4), specifically comprising the following steps: At least one layer of the vibration reduction layer (3) is connected to the outer end surface of the metal sound insulation board (4); At least one damping layer (2) is connected to the end surface of the vibration reduction layer (3) away from the metal sound insulation board (4); At least one layer of the sound insulation board layer (1) is connected to the end surface of the damping layer (2) on one side away from the vibration reduction layer (3), and the end surface of the damping layer (2) on one side having the recessed area (21) faces the sound insulation board layer (1).

12. The curtain wall sound insulation method according to claim 10, characterized in that: The following steps are also included: Using a first sealing strip (51) of the sealing connection structure (5) to seal the circumference of the metal sound insulation board (4); The second sealing strip (52) of the sealing connection structure (5) is used to seal the peripheral side of the damping layer (2), the peripheral side of the vibration reduction layer (3), between the damping layer (2) and the metal sound insulation board (4), and between the vibration reduction layer (3) and the metal sound insulation board (4); The third sealing strip (53) of the sealing connection structure (5) is used to seal and connect a plurality of damping units (23) forming the damping layer (2), and / or the third sealing strip (53) of the sealing connection structure (5) is used to seal and connect a plurality of damping units (32) forming the damping layer (3).

13. The curtain wall sound insulation method according to claim 10, characterized in that: The following steps are also included: Auxiliary sealant is used to fill and cure between irregular joints of the sound insulation structure.

Images