Transparent sound absorption and insulation screen with sound absorption function

Abstract

The invention discloses a transparent sound absorption and insulation screen with a sound absorption function, and relates to the technical field of noise treatment, the transparent sound absorption and insulation screen comprises an aluminum alloy frame, and clamping grooves in the periphery of the aluminum alloy frame are fixedly connected with a transparent back plate, a transparent panel and a microporous copolyester sound absorption plate in an embedded mode through sealing rubber strips; a cavity is formed between the transparent back plate and the transparent face plate, a micropore copolymerized polyester sound absorption plate is arranged in the cavity, the transparent sound absorption and insulation screen is of a full-transparent structure, no shading area exists except an aluminum alloy frame, and the double functions of sound absorption and sound insulation are achieved while light transmission is guaranteed. The copolymerized polyester micropore sound absorption plates are adopted in the screen body, optimization can be carried out according to different frequency band noise environments by adjusting parameters such as the thickness of cavities between the plates, the number of layers, the plate thickness, the hole diameter and the hole punching rate, and good adaptability and pertinence are achieved; the panel of the screen body is provided with the acoustic resistance hole channel which faces the sound source and inclines downwards, noise can be effectively absorbed, rainwater can be prevented from invading, and long-term stability and functionality of the screen body are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of noise processing, and particularly to a transparent sound absorption and insulation screen with sound absorption function. Background Art

[0002] With the acceleration of the urbanization process in China, traffic noise pollution has become a prominent environmental problem that plagues the quality of urban residents' lives. Metal sound barriers, with their good sound absorption and insulation effects and mature technologies, have become the mainstream choice for current traffic noise control. However, they will block the line of sight, affect lighting and the landscape. Against the background that urban infrastructure increasingly assumes the function of a "cultural business card", the landscape coordination and humanized design requirements of such facilities are becoming increasingly prominent. Taking the common 3-5-meter-high vertical metal sound absorption and insulation screen body as an example, it is easy to form a continuous and closed "visual barrier" in long-distance road applications, which not only cuts off the aesthetic feeling of the urban space, but also causes visual fatigue and psychological depression for drivers due to the lack of natural light penetration.

[0003] To alleviate the above contradictions, the industry generally attempts to embed transparent materials such as glass, polycarbonate (PC), or acrylic in the middle section of the metal barrier to make a transparent screen to improve its light transmittance. However, conventional transparent materials are limited by their acoustic properties - the smooth surface of glass, PC boards, or acrylic air boards has a high sound reflectivity, and coupled with the significant diffraction effect of low-frequency sound waves, it often causes a decrease in the overall noise reduction amount of the barrier. This functional compromise exposes the realistic dilemma that it is difficult to have both "noise reduction efficiency" and "human experience" in the current sound barrier design.

[0004] The present invention aims to provide a fully transparent sound absorption and insulation screen based on a micro-perforated structure to solve the above problems existing in the prior art. The present invention realizes the sound absorption and noise reduction function of the fully transparent sound absorption and insulation screen by adopting a transparent base plate and a micro-perforated structure, expands the noise reduction frequency band width, and improves the noise reduction effect in the low-frequency band. With the core advantage of "invisible noise reduction", this patent performs outstandingly in enhancing environmental friendliness and safety, and is particularly suitable for noise reduction projects with strict visual and ecological requirements. It is an ideal choice to achieve "noise reduction without sacrificing quality". Summary of the Invention

[0005] Therefore, to solve the above deficiencies, the present invention hereby provides a transparent sound absorption and insulation screen with sound absorption function.

[0006] The present invention is implemented as follows: A transparent sound-absorbing and sound-insulating screen with a sound-absorbing function is constructed. The device includes an aluminum alloy frame. The slots inside the four sides of the two groups of aluminum alloy frames are respectively embedded and fixed with a transparent back panel, a transparent front panel, and a microcellular copolyester sound-absorbing board through sealing rubber strips; a cavity is formed between the transparent back panel and the transparent front panel, and a microcellular copolyester sound-absorbing board is provided in this cavity; the copolyester micro-perforated board is arranged in a single layer or a double layer according to the requirements of different frequency band ambient noise control and the overall thickness of the sound-insulating screen. Micro-perforations with different perforation rates and pore diameters are respectively provided on each layer of copolyester thin board to form a sound-absorbing channel, and "single-layer or multi-layer thin cavity resonance broadband sound-absorbing technology" is used for sound absorption and noise elimination. When arranged in a single layer, the copolyester micro-perforated board is spaced about 40 mm - 60 mm from the transparent back panel; when arranged in a double layer, the interval between the copolyester micro-perforated boards is about 20 mm - 30 mm, and the interval from the transparent back panel is about 50 mm - 80 mm.

[0007] Preferably, the overall thickness of the fully transparent sound-absorbing and sound-insulating screen is about 80 mm - 150 mm.

[0008] Preferably, the aluminum alloy frame is made of aluminum profiles with a thickness of 1.6 - 2.0 mm.

[0009] Preferably, the thickness of the transparent front panel is 4 - 8 mm.

[0010] Preferably, the thickness of the transparent back panel is 4 - 8 mm.

[0011] Preferably, the transparent front panel and the transparent back panel are made of high-transparency materials.

[0012] Preferably, the high-transparency material is specifically one or a combination of two of tempered glass, polycarbonate board, or acrylic board.

[0013] Preferably, the surface of the transparent front panel is provided with pore channels with a pore diameter of Φ3 mm ≤ pore diameter ≤ Φ8 mm, a perforation rate of 15 - 25%, and the pore channels are inclined downward facing the sound source to facilitate sound collection and prevent rainwater intrusion.

[0014] Preferably, the surface of the copolyester micro-perforated board is provided with sound-absorbing pore channels with a pore diameter of Φ0.5 mm ≤ pore diameter ≤ Φ1.2 mm, a perforation rate of 1 - 2%, and the board thickness is between 0.8 - 1.5 mm to have a good sound-absorbing effect on broadband noise.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. Adopting a fully transparent structure, there is no light-shielding area except for the frame. While ensuring light transmittance, the dual functions of sound absorption and sound insulation are achieved; the screen body uses a copolyester microcellular sound-absorbing board. By adjusting parameters such as the thickness of the cavity between the boards, the number of layers, the board thickness, the pore diameter, and the perforation rate, it can be optimized for different frequency band noise environments and has good adaptability and pertinence;

[0017] 2. The screen panel is provided with sound resistance holes that slope downward towards the sound source, which can not only effectively absorb noise but also prevent rainwater from intruding, ensuring the long-term stability and functionality of the screen. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Among them: aluminum alloy frame - 1, transparent panel - 2, transparent back panel - 3, micro-hole copolyester sound-absorbing panel - 4, sealing strip - 5. Detailed Description of the Embodiment

[0020] The following will combine the attached Figure 1 The present invention will be described in detail. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Embodiment 1:

[0024] Please refer to Figure 1 , a transparent sound-absorbing and sound-insulating screen with a sound-absorbing function of the present invention, includes an aluminum alloy frame 1. The card slots provided around the inner sides of the two groups of aluminum alloy frames 1 are respectively connected and fixed to the upper and lower ends of the transparent back panel 3, the transparent panel 2, and the micro-hole copolyester sound-absorbing panel 4 through sealing strips; a cavity is formed between the transparent back panel 3 and the transparent panel 2, and a micro-hole copolyester sound-absorbing panel 4 is provided in this cavity.

[0025] The copolymerized polyester microporous panel 4 is provided in a single layer or a double layer according to the requirements of environmental noise control in different frequency bands and the overall thickness of the sound absorption and insulation screen. Micro-perforations with different pore diameters and perforation rates are respectively provided on each layer of the copolymerized polyester thin plate to form a sound-absorbing channel, and the "multi-layer thin cavity resonance broadband sound absorption technology" is used for sound absorption and noise elimination. When arranged in a single layer, the copolymerized polyester microporous panel is spaced about 40 mm - 60 mm from the transparent back panel; when arranged in a double layer, the spacing between the copolymerized polyester microporous panels is about 20 mm - 30 mm, and the spacing from the transparent back panel is about 50 mm - 80 mm.

[0026] Specifically, the overall thickness of the fully transparent sound absorption and insulation screen is about 80 mm - 150 mm.

[0027] Specifically, the aluminum alloy frame 1 is made of aluminum profiles with a thickness of 1.6 - 2.0 mm.

[0028] Specifically, the thickness of the transparent panel 2 is 4 - 8 mm (different thicknesses are selected according to different transparent materials).

[0029] Specifically, the materials of the transparent panel 2 and the transparent back panel 3 can be high-transparency materials.

[0030] Specifically, the high-transparency material is specifically one of tempered glass, polycarbonate board or acrylic board, or a combination of two.

[0031] Specifically, the surface of the transparent panel 2 is provided with pore channels with a pore diameter of Φ3 mm ≤ pore diameter ≤ Φ8 mm, a perforation rate of 15 - 25%, and the pore channel direction is inclined downward facing the sound source to facilitate sound collection and prevent rainwater intrusion.

[0032] Specifically, the surface of the copolymerized polyester microporous panel is provided with sound absorption pore channels with a pore diameter of Φ0.5 mm ≤ pore diameter ≤ Φ1.2 mm, a perforation rate of 1 - 2%, and the plate thickness is between 0.8 - 1.5 mm, so as to have a good sound absorption effect on broadband noise.

[0033] Specifically, the thickness of the transparent back panel 3 is 4 - 8 mm (different thicknesses are selected according to different transparent materials), and the material can be a high-transparency material, specifically one of tempered glass, polycarbonate board or acrylic board; for the convenience of installation and fixation, the perforated board adopts a edge-wrapping process, and the installation method with the aluminum alloy frame is by using a pressure strip and sealant to ensure that the film is flat and firmly installed.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part all adopt the mature conventional means in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art, and will not be elaborated here.

[0035] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transparent sound-absorbing and sound-insulating screen with sound-absorbing function, characterized in that; It includes an aluminum alloy frame, and the card slots around the aluminum alloy frame are respectively embedded and fixed with the transparent back plate, the transparent panel, and the microporous copolymer polyester sound-absorbing board through sealing strips; A cavity is formed between the transparent back plate and the transparent front plate, and a microporous copolyester sound absorbing plate is arranged in the cavity; The copolyester micro-perforated sheet is set as a single layer or double layer according to the requirements of environmental noise control in different frequency bands and the overall thickness of the sound-absorbing and sound-insulating screen. Micro-perforations with different perforation rates and apertures are set on each layer of the copolyester sheet to form a sound-absorbing channel, and the "single-layer or multi-layer thin cavity resonance broadband sound-absorbing technology" is used for sound absorption and sound elimination. When set as a single layer, the copolyester micro-perforated sheet is 40mm-60mm away from the transparent back plate; when set as a double layer, the copolyester micro-perforated sheet is 20mm-30mm apart and 50mm-80mm away from the transparent back plate.

2. According to claim 1, a transparent sound-absorbing and sound-insulating screen with sound-absorbing function is characterized by: The overall thickness of the fully transparent sound-absorbing and sound-insulating screen is about 80mm-150mm.

3. According to claim 1, a transparent sound-absorbing and sound-insulating screen with sound-absorbing function is characterized by: The aluminum alloy frame uses 1.6 to 2.0 mm thick aluminum profiles.

4. According to claim 1, the transparent sound-absorbing and sound-insulating screen with sound-absorbing function is characterized by: The thickness of the transparent panel is 4-8mm, and the thickness of the transparent back panel is 4-8mm.

5. According to claim 1, the transparent sound-absorbing and sound-insulating screen with sound-absorbing function is characterized by: The transparent panel and the transparent back panel are made of highly transparent materials.

6. The transparent sound-absorbing and sound-insulating screen with sound-absorbing function according to claim 1 is characterized in that: The highly transparent material is specifically one or a combination of tempered glass, polycarbonate plate or acrylic plate.

7. The transparent sound-absorbing and sound-insulating screen with sound-absorbing function according to claim 1 is characterized in that: For traffic noise reduction, the surface of the transparent panel is provided with holes with an aperture of Φ3mm≤≤Φ8mm, a perforation rate of 15-25%, and the hole faces downwardly and tilts toward the sound source.

8. The transparent sound-absorbing and sound-insulating screen with sound-absorbing function according to claim 1, characterized in that: For traffic noise reduction, the surface of the copolyester micro-perforated plate is provided with sound-absorbing micro-holes with a hole diameter of Φ0.5mm≤≤Φ1.2mm, a perforation rate of 1-2%, and a plate thickness of 0.8-1.5mm.

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