Hollow glass and curtain wall
By incorporating a combination of sound-absorbing structures, damping layers, and resonant structures into insulated glass, the problem of insufficient sound insulation performance in the low-to-mid frequency range of insulated glass is solved, achieving a highly efficient sound insulation effect in the low-to-mid frequency range, while reducing glass weight and installation complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 信义节能玻璃(江门)有限公司
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-29
AI Technical Summary
Insulating glass has poor sound insulation performance in the low and mid-frequency range, making it difficult to effectively attenuate noise. Furthermore, existing improvement solutions are costly, increase weight, and are complex to install.
The design employs a combination of sound-absorbing structure, damping layer, and resonant structure. The sound-absorbing structure absorbs mid-to-high frequency sound waves and attenuates some mid-to-low frequency sound waves. The damping layer suppresses glass vibration, and the resonant structure is designed for the mid-to-low frequency range, absorbing or canceling sound wave energy through local resonance.
Significantly improves sound insulation performance in the mid-to-low frequency range, reduces the weight of insulated glass by 15%-20%, simplifies the installation process, and increases sound insulation in the mid-to-low frequency range by 20dB-25dB.
Smart Images
Figure CN224300709U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of glass manufacturing technology, and more specifically, to an insulated glass unit and curtain wall. Background Technology
[0002] Insulating glass is a building material consisting of two or more panes of glass separated by a sealed air or gas layer. Due to its excellent thermal insulation and sound insulation properties, it is widely used in modern buildings, including doors, windows, and curtain walls. Its sound insulation principle mainly relies on the combination of glass and air layer; through the obstruction of the air layer and the reflection of the glass, the transmission of sound waves is weakened, achieving a basic sound insulation effect. However, the sound insulation performance of insulating glass is poor in the low-to-mid frequency range, and it cannot effectively attenuate such noise, making it difficult to meet the stringent requirements of some buildings for a quiet environment.
[0003] While improvements such as filling with inert gases (like argon or krypton), increasing the number of glass layers, or using laminated glass can enhance sound insulation in specific frequency bands to some extent, they present significant problems: First, production costs increase significantly, as the processes for using inert gases and multi-layered glass are complex and the materials are expensive. Second, the increased weight of the glass places higher demands on the building's structural load-bearing capacity and design. Furthermore, installation becomes more difficult, especially in high-rise buildings, where transportation and construction become significantly more complex. Additionally, these solutions struggle to attenuate noise at different frequencies, resulting in insufficient overall sound insulation efficiency and an inability to cope with diverse noise environments.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this application is to provide an insulated glass and curtain wall, which aims to solve the technical problem that the sound insulation performance of insulated glass is poor in the low and mid-frequency range in related technologies.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0007] This application provides an insulated glass unit, comprising: a first glass layer, a second glass layer and a third glass layer, a sound-absorbing structure, a resonant structure and a damping layer;
[0008] The first glass layer and the second glass layer are spaced apart;
[0009] The second glass layer and the third glass layer are spaced apart;
[0010] The second glass layer is located between the first glass layer and the third glass layer;
[0011] The sound-absorbing structure is disposed between the first glass layer and the second glass layer. The second glass layer has two opposing inner surfaces, and the damping layer is disposed on the inner surface. The resonant structure is disposed between the second glass layer and the third glass layer.
[0012] In some implementations, the density of the sound-absorbing structure gradually increases from the first glass layer to the second glass layer; the material of the sound-absorbing structure is sound-absorbing cotton.
[0013] In some implementations, the sound-absorbing structure includes a first sound-absorbing layer and a second sound-absorbing layer stacked together, with the second sound-absorbing layer located between the second glass layer and the first sound-absorbing layer;
[0014] The density of the first sound-absorbing layer is less than the density of the second sound-absorbing layer.
[0015] In some implementations, the first sound-absorbing layer is made of glass wool; the second sound-absorbing layer is made of polyester fiber cotton.
[0016] In some implementations, the damping layer includes a first sub-layer and a second sub-layer, which are stacked together; the damping coefficient of the first sub-layer is smaller than that of the second sub-layer; and the second sub-layer is located between the first sub-layer and the inner surface.
[0017] In some implementations, the first sublayer is made of silicone rubber, and the second sublayer is made of acrylic resin.
[0018] In some implementations, the insulating glass further includes a spacer strip, which is disposed between the first glass layer and the second glass layer. The spacer strip, the first glass layer, and the second glass layer together form a first inner cavity, and the sound-absorbing structure fills the first inner cavity.
[0019] The spacer strip is provided between the second glass layer and the third glass layer. The spacer strip, the second glass layer and the third glass layer form a second inner cavity, and the resonant structure is provided in the second inner cavity.
[0020] In some implementations, the resonant structure includes a first resonator group and a second resonator group.
[0021] The first resonator group includes a plurality of Helmholtz resonators, and the plurality of Helmholtz resonators in the first resonator group are arranged circumferentially along the second inner cavity;
[0022] The second resonator group includes a plurality of Helmholtz resonators, which are spaced apart along a predetermined direction of the insulating glass, the predetermined direction being perpendicular to the thickness direction of the insulating glass.
[0023] In some implementations, the insulating glass unit further includes a first sealant layer and a second sealing layer.
[0024] The spacer strip disposed between the first glass layer and the second glass layer is sealed to the first glass layer and the second glass layer respectively by the first sealant layer;
[0025] The spacer strip disposed between the second glass layer and the third glass layer is sealed to the second glass layer and the third glass layer respectively by the first sealant layer;
[0026] The second sealing layer is disposed around the outer side of the spacer strip.
[0027] This application provides a curtain wall, including: a frame structure and insulated glass in any of the above-described embodiments, wherein the insulated glass is fixedly connected to the frame structure.
[0028] The beneficial effects of the insulated glass and curtain wall provided in this application are mainly as follows:
[0029] The insulated glass unit provided in this application incorporates a sound-absorbing structure between the first and second glass layers. This structure absorbs mid-to-high frequency sound waves and attenuates some mid-to-low frequency sound waves. The sound-absorbing structure converts sound wave energy into heat energy, reducing the reflection and propagation of sound waves between the first and second glass layers, thereby reducing the penetration ability of mid-to-low frequency sound waves. A damping layer on the inner surface of the second glass layer suppresses glass layer vibration. Since glass vibration caused by sound waves is one of the main pathways for mid-to-low frequency noise transmission, the damping layer dissipates vibration energy, reducing the propagation of sound waves through the glass layer. The resonant structure is designed for the mid-to-low frequency range, absorbing or canceling sound wave energy through local resonance. Combined with multiple glass layers, this forces sound waves to undergo more reflection and refraction, further attenuating energy and improving the sound insulation performance of the insulated glass unit in the mid-to-low frequency range. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1 This is a cross-sectional structural diagram of the insulating glass provided in the embodiments of this application;
[0032] Figure 2 This is another cross-sectional structural diagram of the insulating glass provided in the embodiments of this application;
[0033] Figure 3 This is another cross-sectional structural diagram of the insulating glass provided in the embodiments of this application;
[0034] Figure 4 This is another cross-sectional structural diagram of the insulating glass provided in the embodiments of this application;
[0035] Figure 5 This is a schematic diagram of the resonant structure provided in the embodiments of this application;
[0036] Figure 6 This is another schematic diagram of the resonance structure provided in the embodiments of this application.
[0037] Explanation of key figure labels:
[0038] 100. First glass layer; 101. Second glass layer; 103. Third glass layer; 104. Sound-absorbing structure; 105. Resonance structure; 106. Damping layer; 107. Spacer strip; 108. First sealant layer; 109. Second sealant layer; 110. First sound-absorbing layer; 111. Second sound-absorbing layer; 112. First sub-layer; 113. Second sub-layer; 114. First resonator group; 115. Helmholtz resonator; 116. Second resonator group; 117. First sub-group; 118. Second sub-group; 119. Second inner cavity. Detailed Implementation
[0039] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0040] In related technologies, insulated glass is a building material composed of two or more panes of glass separated by a sealed air or gas layer. Due to its excellent thermal insulation and sound insulation properties, it is widely used in modern buildings, including doors, windows, and curtain walls. Its sound insulation principle mainly relies on the combination of glass and air layer; through the obstruction of the air layer and the reflection of the glass, the transmission of sound waves is weakened, achieving a basic sound insulation effect. However, the sound insulation performance of insulated glass is poor in the low-to-mid frequency range, failing to effectively attenuate such noise and making it difficult to meet the stringent requirements of some buildings for a quiet environment.
[0041] Therefore, this application provides an insulated glass unit and a curtain wall to solve the problems in the related technology. The insulated glass unit and curtain wall provided in this application will be described in detail below with reference to the accompanying drawings.
[0042] See Figure 1 As shown, this application provides an insulated glass unit, comprising: a first glass layer 100, a second glass layer 101 and a third glass layer 103, a sound-absorbing structure 104, a resonant structure 105 and a damping layer 106; the first glass layer 100 and the second glass layer 101 are spaced apart; the second glass layer 101 and the third glass layer 103 are spaced apart; the second glass layer 101 is located between the first glass layer 100 and the third glass layer 103; the sound-absorbing structure 104 is disposed between the first glass layer 100 and the second glass layer 101, the second glass layer 101 has two opposing inner surfaces, the inner surfaces are provided with a damping layer 106, and the resonant structure 105 is disposed between the second glass layer 101 and the third glass layer 103.
[0043] For ease of description of the embodiments below, the height direction of the insulating glass is defined to be parallel to the Z-axis direction, the width direction of the insulating glass is defined to be parallel to the X-axis direction, and the thickness direction of the insulating glass is defined to be parallel to the Y-axis direction.
[0044] The insulating glass unit provided in this application has a sound-absorbing structure 104 disposed between the first glass layer 100 and the second glass layer 101. This structure can absorb mid-to-high frequency sound waves and attenuate some mid-to-low frequency sound waves. The sound-absorbing structure 104 converts sound wave energy into heat energy, reducing the reflection and propagation of sound waves between the first glass layer 100 and the second glass layer 101, thereby reducing the penetration of mid-to-low frequency sound waves. The damping layer 106 disposed on the inner surface of the second glass layer 101 can suppress the vibration of the glass layer. Since glass vibration caused by sound waves is one of the main pathways for the transmission of mid-to-low frequency noise, the damping layer 106 reduces the propagation of sound waves through the glass layer by dissipating vibration energy. The resonant structure 105 is designed for the mid-to-low frequency range, absorbing or canceling sound wave energy through local resonance. By cooperating with multiple glass layers, the sound waves need to undergo more reflection and refraction, further attenuating the energy, thereby improving the sound insulation performance of the insulating glass unit in the mid-to-low frequency range.
[0045] In some embodiments, the first glass layer 100, the second glass layer 101, and the third glass layer 103 are arranged sequentially along the thickness direction of the insulating glass unit. The distance between the first glass layer 100 and the second glass layer 101 is 15mm-25mm, which facilitates increasing the spacing and also makes it easier to fill the sound-absorbing structure 104. For example, the distance between the first glass layer 100 and the second glass layer 101 can be the distance between the opposing surfaces of the two glass layers, and the distance can be 15mm, 20mm, or 25mm. The distance between the second glass layer 101 and the third glass layer 103 is 8mm-12mm; for example, it can be 8mm, 10mm, 11mm, or 12mm. This spacing design can optimize low- and mid-frequency noise and effectively excite the resonance effect within the second inner cavity. The first glass layer 100 is the outer layer of the insulating glass unit; while the third glass layer 103 is the inner layer of the insulating glass unit.
[0046] It should be noted that the insulated glass provided in this application embodiment is mainly used for walls or other facilities that require sound insulation, therefore the insulated glass does not need to be light-transmitting.
[0047] See Figure 1 As shown, in some embodiments, the insulated glass also includes a spacer 107. A spacer 107 is disposed between the first glass layer 100 and the second glass layer 101. The spacer 107, the first glass layer 100, and the second glass layer 101 together form a first inner cavity, in which the sound-absorbing structure 104 is filled. A spacer 107 is also disposed between the second glass layer 101 and the third glass layer 103. The spacer 107, the second glass layer 101, and the third glass layer 103 together form a second inner cavity, in which the resonant structure 105 is disposed. The spacer 107 ensures a stable interval between the first glass layer 100, the second glass layer 101, and the third glass layer 103, forming a closed first and second inner cavity. The closed inner cavity helps prevent sound wave leakage and enhances the sound insulation effect of the sound-absorbing structure 104 and the resonant structure 105. The sound-absorbing structure 104 in the first inner cavity and the resonant structure 105 in the second inner cavity form a double-layer sound insulation mechanism, avoiding the resonance amplification problem of a single air layer at a specific frequency, and significantly improving the sound insulation performance in the mid-to-low frequency range. For example, the spacer strip 107 can also be called a warm edge strip; the spacer strip 107 can be made of a rigid material, such as aluminum alloy, stainless steel, polypropylene (PP), polycarbonate (PC), or glass fiber reinforced plastic (FRP). The sound-absorbing structure 104 can completely fill the entire first inner cavity, thereby enhancing the sound insulation effect.
[0048] See Figure 1As shown, in some embodiments, the insulated glass unit further includes a first sealant layer 108 and a second sealing layer. A spacer 107 disposed between the first glass layer 100 and the second glass layer 101 is sealed to the first glass layer 100 and the second glass layer 101 respectively by the first sealant layer 108. A spacer 107 disposed between the second glass layer 101 and the third glass layer 103 is sealed to the second glass layer 101 and the third glass layer 103 respectively by the first sealant layer 108. The second sealing layer is disposed around the outer side of the spacer 107. The first sealant layer 108 is mainly responsible for sealing the inner side to prevent gas or moisture penetration. The second sealing layer is disposed around the outer side of the spacer 107 to form an outer protective layer, which covers the outer side of the first sealant layer 108 and the spacer 107, providing additional sealing and structural protection. For example, the spacer 107 has a first sealant layer 108 on each of the two opposite sides in the thickness direction of the insulated glass unit, thereby achieving a sealed connection between the spacer 107 and the corresponding glass layer on each of the two opposite sides in the thickness direction of the insulated glass unit. The second sealant layer 109 also covers the outer side of the first sealant layer 108. The first sealant layer 108 can be made of butyl rubber; while the second sealant layer 109 can be made of silicone sealant. Butyl rubber has excellent airtightness and moisture barrier properties, providing a basic seal for the insulated glass, effectively preventing external moisture from entering the insulating layer and avoiding performance degradation due to moisture condensation. Silicone sealant has excellent structural stability and anti-aging properties, enhancing the sealing strength of the glass edges and ensuring the reliability of the insulated glass during long-term use.
[0049] See Figure 1 As shown, in some embodiments, the density of the sound-absorbing structure 104 gradually increases from the first glass layer 100 to the second glass layer 101; the material of the sound-absorbing structure 104 is sound-absorbing cotton. Using sound-absorbing cotton as the material of the sound-absorbing structure 104 helps to improve the sound insulation performance in the mid-to-low frequency range while ensuring the lightweight of the insulating glass; from the outside to the inside of the insulating glass, the density of the sound-absorbing structure 104 forms a continuous acoustic impedance gradient from low to high, which can optimize the layer-by-layer attenuation of sound waves in the sound-absorbing structure 104 and avoid the limitations of single-density sound-absorbing cotton in the mid-to-low frequency range. For example, the sound-absorbing cotton is made of polyester fiber cotton, glass fiber cotton, or rock wool.
[0050] See Figure 2As shown, in some embodiments, the sound-absorbing structure 104 includes a first sound-absorbing layer 110 and a second sound-absorbing layer 111 stacked together, with the second sound-absorbing layer 111 located between the second glass layer 101 and the first sound-absorbing layer 110; the density of the first sound-absorbing layer 110 is less than the density of the second sound-absorbing layer 111; using two sound-absorbing layers facilitates manufacturing to create a gradient change in acoustic impedance. For example, the first sound-absorbing layer 110 is made of glass wool; the second sound-absorbing layer 111 is made of polyester fiber cotton.
[0051] It should be noted that in some other possible embodiments, the sound-absorbing structure 104 may also include a third sound-absorbing layer and a fourth sound-absorbing layer; the first sound-absorbing layer, the second sound-absorbing layer, the third sound-absorbing layer and the fourth sound-absorbing layer are stacked sequentially from the first glass layer to the second glass layer, and the density of the first sound-absorbing layer, the second sound-absorbing layer, the third sound-absorbing layer and the fourth sound-absorbing layer increases sequentially from the first glass layer to the second glass layer. This is because multiple sound-absorbing layers help to create a gradient change in density, thereby reducing sound wave energy, attenuating mid-low frequencies, and avoiding the limitations of a single sound-absorbing material in the mid-low frequency range.
[0052] See Figure 1 As shown, in some embodiments, the number of damping layers 106 on each inner surface of the second glass layer 101 can be one or more. Exemplarily, the damping layer 106 can achieve a gradual change in damping coefficient from high to low by repeatedly spraying different materials onto the inner surface of the second glass layer 101. The damping coefficient of the damping layer 106 located in the first inner cavity gradually decreases from the inner surface towards the first glass layer 100; the damping coefficient of the damping layer 106 located in the second inner cavity gradually decreases from the inner surface towards the third glass layer 103. The different materials used for each spraying can be polyurethane or acrylic resin. For example, it can be sprayed twice, the first time with a material with a higher damping coefficient, and the second time with a material with a lower damping coefficient. It is understood that it can also be sprayed three, four, or five times, each time using a material with a different damping coefficient.
[0053] It should be noted that in some other possible implementations, the damping coefficient of the damping layer 106 may also be fixed, that is, the damping coefficient of the damping layer 106 located in the first inner cavity remains constant from the inner surface toward the first glass layer 100; the damping coefficient of the damping layer 106 located in the second inner cavity remains constant from the inner surface toward the third glass layer 103.
[0054] See Figure 2As shown, in some embodiments, the damping layer 106 includes a first sub-layer 112 and a second sub-layer 113, which are stacked together. The damping coefficient of the first sub-layer 112 in the damping layer 106 is smaller than that of the second sub-layer 113. The second sub-layer 113 in the damping layer 106 is located between the first sub-layer 112 and the inner surface. Thus, the second sub-layer 113 is in contact with the inner surface and has a higher damping coefficient, while the first sub-layer 112 is far from the inner surface and has a lower damping coefficient. When fabricating the damping layer 106, the second sub-layer 113 can be fabricated first, followed by the first sub-layer 112. The first sublayer 112 is made of silicone rubber with a damping coefficient of 0.1-0.3. When manufacturing the first sublayer 112, silicone rubber and vinyl silicone oil can be physically blended and then coated onto the second glass layer 101. The vinyl silicone oil accounts for 20% of the mass fraction of the blended mixture. This helps reduce splitting between the first sublayer 112 and the second sublayer 113. The second sublayer 113 can be made of acrylic resin with a damping coefficient of 0.6-0.8.
[0055] See Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the resonant structure 105 includes a first resonator group 114, which includes a plurality of Helmholtz resonators 115 arranged circumferentially along the second inner cavity. The plurality of Helmholtz resonators 115 in the first resonator group 114 are arranged circumferentially along the second inner cavity, thus distributing the plurality of Helmholtz resonators 115 around the periphery of the insulating glass unit. The openings of the slits of the Helmholtz resonators 115 face towards the center of the insulating glass unit, i.e., the openings are perpendicular to the thickness direction of the insulating glass unit. The Helmholtz resonators 115 can absorb lateral sound waves propagating along the surface of the glass layer, such as indoor echoes or standing waves from glass vibrations. Exemplarily, the material of the Helmholtz resonators 115 can be polyvinyl chloride (PVC), and the height of the Helmholtz resonators 115 can be less than or equal to 5 mm. The Helmholtz resonator 115 is elongated, and the length direction of the slit is parallel to the length direction of the Helmholtz resonator 115; multiple Helmholtz resonators 115 in the first resonator group 114 form a rectangle. The multiple Helmholtz resonators 115 in the first resonator group 114 can be fixedly connected to the second glass layer 101 and the third glass layer 103 respectively by adhesive bonding.
[0056] See Figure 3 , Figure 4 and Figure 5As shown, in some embodiments, the resonant structure 105 further includes a second resonator group 116; the second resonator group 116 also includes a plurality of Helmholtz resonators 115, which are spaced apart along a predetermined direction of the insulating glass, the predetermined direction being perpendicular to the thickness direction of the insulating glass. Because the second resonator group 116 is distributed along the predetermined direction, the openings of the slits of the Helmholtz resonators 115 face towards or away from the first glass layer 100, thereby allowing the Helmholtz resonators 115 to absorb vertically incident sound waves. The first resonator group 114 and the second resonator group 116 work together to cover both lateral and vertically incident sound waves, forming a multi-dimensional sound absorption system. For example, multiple Helmholtz resonators 115 in the second resonator group 116 can be arranged sequentially at intervals along the height direction of the insulating glass, wherein the length direction of the Helmholtz resonators 115 is perpendicular to the height direction of the insulating glass; thus, the resonant structure 105 can cover the mid-low frequency noise reduction band of 100Hz-500Hz. The multiple Helmholtz resonators 115 in the second resonator group 116 can be fixedly connected to the second glass layer 101 and the third glass layer 103 respectively by adhesive or snap-fit. See [link to relevant documentation] Figure 3 As shown, the slit opening of the Helmholtz resonator 115 in the second resonator group faces away from the first glass layer 100; see also Figure 4 As shown, the slit opening of the Helmholtz resonator 115 in the second resonator group faces the first glass layer 100. It should be noted that... Figure 3 and Figure 4 The Helmholtz resonator 115 in the second resonator group 116 is only used to illustrate the orientation of its opening, but is not used to define the spacing between the Helmholtz resonator 115 in the second resonator group 116 and the Helmholtz resonator 115 in the first resonator group 114.
[0057] See Figure 6As shown, in some other embodiments, the plurality of Helmholtz resonators 115 in the second resonator group 116 can be divided into a first subgroup 117 and a second subgroup 118. The plurality of Helmholtz resonators 115 in the first subgroup 117 are arranged at intervals along the height direction of the insulating glass, wherein the length direction of the Helmholtz resonators 115 is perpendicular to the height direction of the insulating glass. The plurality of Helmholtz resonators 115 in the second subgroup 118 are arranged at intervals along the width direction of the insulating glass, wherein the length direction of the Helmholtz resonators 115 is parallel to the height direction of the insulating glass. The opening orientation of the Helmholtz resonators 115 in the first subgroup 117 is opposite to the opening orientation of the Helmholtz resonators 115 in the second subgroup 118. The multiple Helmholtz resonators 115 in the first subgroup 117 can be fixedly connected to the second glass layer 101 and the third glass layer 103 respectively by adhesive or snap-fit. The spacing between two adjacent Helmholtz resonators 115 can be 30cm-70cm, for example, 30cm, 50cm, or 70cm; the specific design can be based on the wavelength of different frequencies. The multiple Helmholtz resonators 115 in the second subgroup 118 can be fixedly connected to the second glass layer 101 and the third glass layer 103 respectively by adhesive or snap-fit. The spacing between two adjacent Helmholtz resonators 115 can be 30cm-70cm, for example, 30cm, 50cm, or 70cm; the specific design can be based on the wavelength of different frequencies. The multiple Helmholtz resonators 115 in the first subgroup 117 can be arranged at equal intervals or with arithmetic progressions. The multiple Helmholtz resonators 115 in the second subgroup 118 can be arranged at equal intervals or with arithmetic progressions. It should be noted that for... Figure 5 and Figure 6 Only the resonant structure 105, i.e., its distribution in the insulated glass, is shown.
[0058] This application also provides a curtain wall, including: a frame structure and insulated glass in any embodiment, wherein the insulated glass is fixedly connected to the frame structure, thereby improving the sound insulation performance of the curtain wall in the mid-to-low frequency range. The frame structure can be made of aluminum alloy or stainless steel into a square frame structure or other forms of structure.
[0059] In summary, the insulated glass and curtain wall provided in this application, through the combination of sound-absorbing structure, damping layer 106 and resonant structure 105, can achieve efficient noise blocking over a wide frequency range, especially significantly improving the attenuation effect of mid- and low-frequency noise, while taking into account structural lightweighting and ease of installation. It can increase the average sound insulation of insulated glass by 20dB-25dB in the 100Hz-2000Hz frequency range, especially achieving a breakthrough noise reduction effect in the mid- and low-frequency range. Compared with related technologies, the weight of the insulated glass in this application embodiment can be reduced by 15%-20%, which is beneficial to reducing the load-bearing pressure of buildings.
[0060] It should be understood that, in the embodiments of this application, unless otherwise expressly specified and limited, the terms "connection," "fixed connection," "contact," etc., should be interpreted broadly. Those skilled in the art can understand the specific meanings of the various terms in the embodiments of this application according to the specific circumstances.
[0061] For example, the "connection" can be a fixed connection, a rotating connection, a flexible connection, a sliding connection, a one-piece molding, an electrical connection, a contact connection, or other connection methods; it can be a direct connection, or an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components.
[0062] For example, a "fixed connection" can be a component that can be directly or indirectly fixedly connected to another component; a fixed connection can include mechanical connection, welding, bonding or integral molding, etc., wherein mechanical connection can include riveting, bolting, threaded connection, keying, snap-fit connection, locking connection, plugging, etc., and bonding can include adhesive bonding and solvent bonding, etc.
[0063] It should also be understood that the “parallel” or “perpendicular” described in the embodiments of this application can be understood as “approximately parallel” or “approximately perpendicular”.
[0064] It should also be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features specified as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0065] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0066] It should also be understood that the terms “length,” “width,” “up,” “down,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship (if any) based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0067] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims. In conclusion, the above description is merely a preferred embodiment of the technical solution of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. A type of insulating glass, characterized in that, include: First glass layer, second glass layer and third glass layer, sound-absorbing structure, resonant structure and damping layer; The first glass layer and the second glass layer are spaced apart; The second glass layer and the third glass layer are spaced apart; The second glass layer is located between the first glass layer and the third glass layer; The sound-absorbing structure is disposed between the first glass layer and the second glass layer. The second glass layer has two opposing inner surfaces, and the damping layer is disposed on the inner surface. The resonant structure is disposed between the second glass layer and the third glass layer.
2. The insulating glass as described in claim 1, characterized in that, The density of the sound-absorbing structure gradually increases from the first glass layer to the second glass layer; the material of the sound-absorbing structure is sound-absorbing cotton.
3. The insulating glass as described in claim 1, characterized in that, The sound-absorbing structure includes a first sound-absorbing layer and a second sound-absorbing layer stacked together, with the second sound-absorbing layer located between the second glass layer and the first sound-absorbing layer; The density of the first sound-absorbing layer is less than the density of the second sound-absorbing layer.
4. The insulating glass as described in claim 3, characterized in that, The first sound-absorbing layer is made of glass wool; the second sound-absorbing layer is made of polyester fiber cotton.
5. The insulating glass as described in any one of claims 1-4, characterized in that, The damping layer includes a first sub-layer and a second sub-layer, which are stacked together; the damping coefficient of the first sub-layer is smaller than that of the second sub-layer; the second sub-layer is located between the first sub-layer and the inner surface.
6. The insulating glass as described in claim 5, characterized in that, The first sublayer is made of silicone rubber, and the second sublayer is made of acrylic resin.
7. The insulating glass as described in any one of claims 1-4, characterized in that, The insulated glass also includes a spacer strip, which is provided between the first glass layer and the second glass layer. The spacer strip, the first glass layer and the second glass layer together form a first inner cavity, and the sound-absorbing structure is filled in the first inner cavity. The spacer strip is provided between the second glass layer and the third glass layer. The spacer strip, the second glass layer and the third glass layer form a second inner cavity, and the resonant structure is provided in the second inner cavity.
8. The insulating glass as described in claim 7, characterized in that, The resonant structure includes a first resonator group and a second resonator group. The first resonator group includes a plurality of Helmholtz resonators, and the plurality of Helmholtz resonators in the first resonator group are arranged circumferentially along the second inner cavity; The second resonator group includes a plurality of Helmholtz resonators, which are spaced apart along a predetermined direction of the insulating glass, the predetermined direction being perpendicular to the thickness direction of the insulating glass.
9. The insulating glass as described in claim 8, characterized in that, It also includes a first sealant layer and a second sealing layer. The spacer strip disposed between the first glass layer and the second glass layer is sealed to the first glass layer and the second glass layer respectively by the first sealant layer; The spacer strip disposed between the second glass layer and the third glass layer is sealed to the second glass layer and the third glass layer respectively by the first sealant layer; The second sealing layer is disposed around the outer side of the spacer strip.
10. A curtain wall, characterized in that, include: A frame structure, and an insulating glass unit as described in any one of claims 1-9, wherein the insulating glass unit is fixedly connected to the frame structure.