Sound insulation tempered glass laminated structure

Abstract

The utility model relates to the technical field of toughened glass, and discloses a sound insulation toughened glass laminated structure which comprises two layers of protective frames, a bearing connecting frame, two layers of toughened glass, two laminated layers, two layers of vibration isolators, a vacuum sealing frame, a silver nanowire flexible circuit, a piezoelectric ceramic transducer and a V-shaped wave guide groove, the problem of hidden danger of a heat source in the prior art is mainly solved, starting and stopping of a piezoelectric ceramic transducer are controlled through a silver nanowire flexible circuit, when a layer of water mist is condensed on the surface of inner-layer tempered glass, the piezoelectric ceramic transducer is started to emit ultrasonic waves, and the ultrasonic waves are focused and transmitted to the surface of the inner-layer tempered glass through a V-shaped wave guide groove; and the water mist attachment state is destroyed to realize demisting.

Description

Technical Field

[0001] This utility model relates to the field of tempered glass technology, and in particular to a soundproof tempered glass laminated structure. Background Technology

[0002] Currently, most soundproof tempered glass uses a single-layer PVB / EVA laminated structure, utilizing the viscoelastic interlayer to absorb sound wave vibrations and combining with tempered glass to improve impact resistance. However, traditional structures suffer from problems such as weak low-frequency sound insulation, limited interlayer thickness leading to difficulty in blocking sound energy transmission, increased weight and cost due to increased layers or thickness, and complex manufacturing processes and susceptibility to air leakage in composite hollow structures. Furthermore, conventional interlayer materials have low damping loss factors, making it difficult to balance broadband sound insulation and light transmittance. Therefore, there is an urgent need to optimize the acoustic performance and practicality balance through innovative laminated structures.

[0003] Existing technology publication number CN218876522U discloses a laminated structure for soundproof tempered glass, including a protective component, two laminated components, and a supporting component. Tempered glass component one and tempered glass component two are internally snapped into the protective component. The two laminated components are located inside tempered glass component one and tempered glass component two, respectively. Each laminated component includes a film and a heating wire, with the heating wire located inside the film and one end connected to a conductive wire. The supporting component includes a support frame and a support plate, with the support plate mounted on the support frame. A buffer pad is provided on one side of the support plate. A vacuum component is positioned between tempered glass component one and tempered glass component two. This invention can seal the vacuum chamber while providing support, and also has a certain buffering structure, providing good support for the tempered glass on both sides. It also has a heating function to prevent frost formation on the tempered glass in winter.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist:

[0005] 1. Existing technology has potential heat source hazards: The heating wire is directly embedded in the film, and long-term use may lead to leakage due to the aging of the adhesive layer. At the same time, heating the entire tempered glass through the heating wire has the problem of excessive energy consumption.

[0006] 2. Existing technology will affect light transmittance: The tempered mesh and heating wire will cause a loss of light transmittance, which will seriously affect the light transmittance of tempered glass. Utility Model Content

[0007] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of potential heat source hazards. To this end, we propose a soundproof tempered glass laminated structure.

[0008] To achieve the above objectives, this application adopts the following technical solution: a soundproof tempered glass laminated structure, comprising an outer protective frame, a load-bearing connecting frame installed on one side of the outer protective frame, an inner protective frame installed on the side of the load-bearing connecting frame away from the protective frame, an outer layer of tempered glass installed on the inner side of the outer protective frame, a vacuum sealing frame installed in the middle of the inner side of the load-bearing connecting frame, an inner layer of tempered glass installed on the inner side of the inner protective frame, and a [missing information - likely a type of seal] installed between the outer tempered glass and the vacuum sealing frame on the side closer to the outer tempered glass. The sound-insulating laminated layer consists of an outer vibration damping pad installed between the outer tempered glass and the vacuum-sealed frame, and an inner vibration damping pad installed between the inner tempered glass and the vacuum-sealed frame, also near the vacuum-sealed frame. A functional laminated layer is installed between the inner tempered glass and the vacuum-sealed frame, near the inner tempered glass. A silver nanowire flexible circuit is installed on the inner side of the functional laminated layer, and a piezoelectric ceramic transducer is installed on the silver nanowire flexible circuit. A V-shaped waveguide groove is formed on the contact surface between the functional laminated layer and the inner tempered glass.

[0009] Preferably, the sidewall of the outer protective frame has an insert groove along the width direction, and the opening end of the insert groove of the outer protective frame extends into the inner depth of the outer protective frame to a depth of five-sixths of the total width of the frame to form a stepped mechanical limiting structure.

[0010] Preferably, a vacuum pump channel is reserved in the middle of the radial outer periphery of the load-bearing connecting frame, and an electrical circuit channel is reserved at the bottom of the load-bearing connecting frame.

[0011] Preferably, the sidewall of the inner protective frame has an insert groove along the width direction, and the opening end of the insert groove of the inner protective frame extends into the inner protective frame to a depth of five-sixths of the total width of the frame to form a stepped mechanical limiting structure.

[0012] Preferably, the web region of the vacuum-sealed frame has equally spaced air extraction channels, and the air extraction channels of the vacuum-sealed frame are connected to the vacuum pump pipeline of the load-bearing connecting frame.

[0013] Preferably, the silver nanowire flexible circuit extends outward along the preset circuit channel of the load-bearing connecting frame and connects to the external control terminal.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] In this invention, the piezoelectric ceramic transducer is started and stopped by a flexible silver nanowire circuit. When a layer of water mist condenses on the surface of the inner tempered glass, the piezoelectric ceramic transducer is activated to emit ultrasonic waves, which are focused and transmitted to the surface of the inner tempered glass through a V-shaped waveguide groove, thereby breaking the water mist adhesion state and achieving cleaning. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a partial planar structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0020] Figure 4 This is a partial exploded structural diagram of the present invention;

[0021] Figure 5 This is an enlarged structural diagram of point A in this utility model;

[0022] Legend:

[0023] 1. Outer protective frame; 2. Load-bearing connecting frame; 3. Inner protective frame; 4. Outer tempered glass; 5. Sound insulation laminated layer; 6. Outer vibration isolation pad; 7. Vacuum sealing frame; 8. Inner vibration isolation pad; 9. Functional laminated layer; 10. Inner tempered glass; 11. Silver nanowire flexible circuit; 12. Piezoelectric ceramic transducer; 13. V-shaped waveguide groove. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figures 1-5As shown, this utility model provides a technical solution: a soundproof tempered glass laminated structure, including an outer protective frame 1, a load-bearing connecting frame 2 installed on one side of the outer protective frame 1, an inner protective frame 3 installed on the side of the load-bearing connecting frame 2 away from the outer protective frame 1, an outer tempered glass 4 installed on the inner side of the outer protective frame 1, a vacuum sealing frame 7 installed in the middle of the inner side of the load-bearing connecting frame 2, an inner tempered glass 10 installed on the inner side of the inner protective frame 3, and a soundproof laminated layer 5 installed between the outer tempered glass 4 and the vacuum sealing frame 7 on the side closer to the outer tempered glass 4. An outer vibration isolation pad 6 is installed between the inner tempered glass 4 and the vacuum sealing frame 7 on the side near the vacuum sealing frame 7. An inner vibration isolation pad 8 is installed between the inner tempered glass 10 and the vacuum sealing frame 7 on the side near the vacuum sealing frame 7. A functional laminated layer 9 is installed between the inner tempered glass 10 and the vacuum sealing frame 7 on the side near the inner tempered glass 10. A silver nanowire flexible circuit 11 is installed on the inner side of the functional laminated layer 9. A piezoelectric ceramic transducer 12 is installed on the silver nanowire flexible circuit 11. A V-shaped waveguide groove 13 is formed on the contact surface between the functional laminated layer 9 and the inner tempered glass 10.

[0026] Reference Figures 1-3 As shown in this implementation scheme: the outer protective frame 1 is a hollow rectangular cross-section profile and adopts a segmented modular design. Each segment of the outer protective frame 1 is connected by corner brackets to form a closed frame. The side wall of the outer protective frame 1 has an insert groove along the width direction. The opening end of the insert groove extends into the outer protective frame 1 to a depth of five-sixths of the total width of the frame, forming a stepped mechanical limiting structure. The outer protective frame 1 is preferably made of high-strength aluminum alloy material, and the surface is anodized to improve corrosion resistance.

[0027] Reference Figures 1-3 As shown in this embodiment: the load-bearing connecting frame 2 is fixed to the outer edge base surface of the mounting groove of the outer protective frame 1 by a circumferential continuous fillet weld. The inner sidewall of the load-bearing connecting frame 2 and the inner sidewall of the mounting groove form an interference fit. The circumferential continuous fillet weld extends along the outer edge base surface of the mounting groove to form a closed loop structure. The load-bearing connecting frame 2 is preferably made of hot-rolled low-carbon steel and coated with Dacromet coating to extend fatigue life. A vacuum pump channel is reserved in the middle of the radial outer periphery of the load-bearing connecting frame 2, and an circuit channel is reserved at the bottom of the load-bearing connecting frame 2.

[0028] Reference Figures 1-3As shown in this implementation scheme: the inner protective frame 3 is also a hollow rectangular cross-section profile and adopts a segmented modular design. Each segment of the inner protective frame 3 is connected by corner brackets to form a closed frame. The side wall of the inner protective frame 3 has an insert groove along the width direction. The opening end of the insert groove extends into the inner protective frame 3 to a depth of five-sixths of the total width of the frame, forming a stepped mechanical limiting structure. The inner protective frame 3 is preferably made of high-strength aluminum alloy material, and the surface is anodized to improve corrosion resistance.

[0029] Reference Figures 1-4 As shown in this embodiment: the outer tempered glass 4 is a flat composite structure and is strengthened by physical tempering process. The edges of the outer tempered glass 4 can be optimized by fine grinding and chamfering. The sidewalls of the outer tempered glass 4 are interference bonded to the mounting groove of the outer protective frame 1 by silicone structural adhesive. The surface of the outer tempered glass 4 is coated, with the coated surface facing outward to reduce the thermal conductivity coefficient. The outer tempered glass 4 preferably uses ultra-white float glass substrate to meet the safety performance requirements under typhoon wind pressure load.

[0030] Reference Figures 1-4 As shown in this embodiment: the sound insulation laminated layer 5 is a multi-layer damping composite structure and adopts a high viscoelasticity film lamination process. The sound insulation laminated layer 5 is composed of three layers of SGP high damping film and two layers of polyvinyl butyral alternately stacked. Its edges are laser-cut and it is seamlessly bonded to the outer tempered glass 4 and the outer vibration damping pad 6 by hot pressing. Nano barium sulfate particles can also be added to the sound insulation laminated layer 5 to suppress the propagation of low frequency noise.

[0031] Reference Figures 1-4 As shown, in this embodiment: the outer vibration isolation pad 6 is located between the sound insulation interlayer 5 and the vacuum sealing frame 7. The outer vibration isolation pad 6 has a continuous closed ring structure. The surface of the outer vibration isolation pad 6 is a wave-shaped elastomer structure and is formed by high-temperature vulcanization molding process. The outer vibration isolation pad 6 is molded by two-component addition-curing liquid silicone and a hydroxyl active layer is formed on the surface by plasma treatment to improve the adhesion and peel strength between the outer vibration isolation pad 6 and the sound insulation interlayer 5 and the vacuum sealing frame 7. The outer vibration isolation pad 6 can also be doped with boron nitride nanosheets or have a micron-sized honeycomb pit array designed on the surface to block the transmission of mid-to-high frequency vibrations.

[0032] Reference Figures 1-5 As shown in this embodiment: the vacuum sealing frame 7 is welded to the center of the radial inner circumference of the load-bearing connecting frame 2. The cross-section of the vacuum sealing frame 7 is a rectangular hollow structure, and the four corners are rounded to reduce the stress concentration factor. Equally spaced air extraction channels can be opened in the web area of ​​the frame. The air extraction channels are connected to the vacuum pump pipeline of the load-bearing connecting frame 2 through the flange interface.

[0033] Reference Figures 1-5As shown in this embodiment: the inner vibration isolation pad 8 is located between the functional interlayer 9 and the vacuum sealing frame 7. The inner vibration isolation pad 8 has a continuous closed ring structure. The surface of the inner vibration isolation pad 8 is a wave-shaped elastomer structure and is formed by high-temperature vulcanization molding process. The inner vibration isolation pad 8 is molded by two-component addition-curing liquid silicone and a hydroxyl active layer is formed on the surface by plasma treatment to improve the adhesion and peel strength between the inner vibration isolation pad 8 and the functional interlayer 9 and the vacuum sealing frame 7. The inner vibration isolation pad 8 can also be doped with boron nitride nanosheets or have a micron-sized honeycomb pit array designed on the surface to block the transmission of mid-to-high frequency vibrations.

[0034] Reference Figures 1-5 As shown in this embodiment: piezoelectric ceramic transducers 12 are embedded at the four corners of the functional laminated layer 9. The piezoelectric ceramic transducers 12 are connected in series through silver nanowire flexible circuits 11. The silver nanowire flexible circuits 11 extend outward along the embedded circuit channels preset in the load-bearing connecting frame 2 and connect to the external control terminal. V-shaped waveguide grooves 13 are processed on the bonding interface between the functional laminated layer 9 and the inner tempered glass 10. The V-shaped waveguide grooves 13 extend in a multi-level radial pattern towards the inner tempered glass 10, with the piezoelectric ceramic transducers 12 at the four corners as the wave source centers. This forms a directional ultrasonic wave transmission path, and the distribution of sound wave energy is constrained by the geometric structure. When the ultrasonic wave emitted by the piezoelectric ceramic transducer 12 is focused and transmitted to the surface of the inner tempered glass 10 through the V-shaped waveguide groove 13, it breaks the water mist adhesion and achieves self-cleaning. At the same time, the external control terminal connected to the silver nanowire flexible circuit 11 can be optimized to install a humidity sensor. After the sensor detects the humidity on the surface of the inner tempered glass 10, it starts and stops the piezoelectric ceramic transducer 12 through the silver nanowire flexible circuit 11, forming a closed-loop control of "excitation-conduction-regulation".

[0035] Reference Figures 1-5 As shown in this embodiment: the inner tempered glass 10 is a flat composite structure and is strengthened by physical tempering process. The edges of the inner tempered glass 10 can be optimized by fine grinding and chamfering. The sidewalls of the inner tempered glass 10 are interference bonded to the mounting groove of the inner protective frame 3 by silicone structural adhesive. The surface of the inner tempered glass 10 is coated, with the coated surface facing outward to reduce the thermal conductivity coefficient.

[0036] Working principle: The piezoelectric ceramic transducer 12 is started and stopped by the silver nanowire flexible circuit 11. When a layer of water mist condenses on the surface of the inner tempered glass 10, the piezoelectric ceramic transducer 12 is activated to emit ultrasonic waves, which are focused and conducted to the surface of the inner tempered glass 10 through the V-shaped waveguide groove 13, thereby breaking the water mist adhesion state to achieve cleaning.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A soundproof tempered glass laminated structure, characterized in that, The device includes an outer protective frame, a load-bearing connecting frame installed on one side of the outer protective frame, an inner protective frame installed on the side of the load-bearing connecting frame away from the protective frame, an outer tempered glass installed on the inner side of the outer protective frame, a vacuum sealing frame installed in the middle of the inner side of the load-bearing connecting frame, an inner tempered glass installed on the inner side of the inner protective frame, a sound-insulating laminated layer installed between the outer tempered glass and the vacuum sealing frame near the outer tempered glass, an outer vibration damping pad installed between the outer tempered glass and the vacuum sealing frame near the vacuum sealing frame, an inner vibration damping pad installed between the inner tempered glass and the vacuum sealing frame near the inner tempered glass, a functional laminated layer installed between the inner tempered glass and the vacuum sealing frame near the inner tempered glass, a silver nanowire flexible circuit installed on the inner side of the functional laminated layer, a piezoelectric ceramic transducer installed on the silver nanowire flexible circuit, and a V-shaped waveguide groove formed on the contact surface between the functional laminated layer and the inner tempered glass.

2. The soundproof tempered glass laminated structure according to claim 1, characterized in that, The sidewall of the outer protective frame has an insert groove along its width direction. The opening end of the insert groove of the outer protective frame extends into the inner depth of the outer protective frame to a depth of five-sixths of the total width of the frame to form a stepped mechanical limiting structure.

3. The soundproof tempered glass laminated structure according to claim 1, characterized in that, A vacuum pump channel is reserved in the middle of the radial outer periphery of the load-bearing connecting frame, and an electrical circuit channel is reserved at the bottom of the load-bearing connecting frame.

4. The soundproof tempered glass laminated structure according to claim 1, characterized in that, The sidewall of the inner protective frame has an insert groove along its width direction. The opening end of the insert groove of the inner protective frame extends into the inner protective frame to a depth of five-sixths of the total width of the frame to form a stepped mechanical limiting structure.

5. The soundproof tempered glass laminated structure according to claim 1, characterized in that, The web area of ​​the vacuum-sealed frame has equally spaced air extraction channels, and the air extraction channels of the vacuum-sealed frame are connected to the vacuum pump pipeline of the load-bearing connecting frame.

6. The soundproof tempered glass laminated structure according to claim 1, characterized in that, The silver nanowire flexible circuit extends outward along the preset circuit channel of the load-bearing connecting frame and connects to the external control terminal.

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