Anti-bending electric appliance sound insulation cotton

Abstract

The utility model discloses anti-bending electric appliance sound insulation cotton, and belongs to the technical field of sound insulation cotton. Comprising a supporting shell, a plurality of sound insulation cotton layers arranged in the supporting shell and anti-bending protection plates arranged between every two adjacent sound insulation cotton layers. The sound insulation cotton layers and the anti-bending protection plates are alternately arranged to form multiple sound wave barriers, sound waves are weakened layer by layer through repeated refraction, friction and heat energy conversion, the anti-bending protection plates are formed by splicing a plurality of magnetic rubber reflection plates end to end to form a flexible grid framework, and the anti-bending protection plates can be freely bent to adapt to shell deformation and can provide transverse supporting force; silica gel moisture-proof balls are filled between the adjacent reflecting plates, moisture is absorbed, the sound-proof cotton layer is prevented from being damped and hardened, the flexibility of the material is kept, and the sound-proof reflecting plate can still resist bending after being used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of sound insulation cotton technology, specifically to an electrical appliance sound insulation cotton that is resistant to bending. Background Technology

[0002] Noise pollution is a significant issue affecting human living environment and health. Long-term exposure to high-noise environments can lead to hearing loss, cardiovascular disease, and nervous system disorders. It can also accelerate the aging of buildings and industrial equipment, and reduce the accuracy and lifespan of instruments and equipment. As people's requirements for noise control continue to increase, various sound insulation and noise reduction technologies and materials have been widely applied.

[0003] In the field of electrical equipment, sound insulation cotton is a commonly used noise reduction material. It absorbs sound wave energy through its porous structure, converting sound energy into heat energy, thereby achieving a sound insulation effect. Currently, materials such as rock wool are often used as sound insulation layers in electrical installation boxes. However, these materials have the following problems:

[0004] Traditional sound insulation materials are prone to deformation or even breakage during the installation or transportation of electrical equipment due to compression and bending. Poor bending resistance leads to a decrease in sound insulation performance. In humid environments, sound insulation cotton is prone to absorbing water and hardening, which not only reduces the sound insulation effect but also makes the material brittle and further deteriorates its bending resistance. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses an electrical appliance sound insulation cotton that is resistant to bending.

[0006] The technical solution of this utility model is: a bending-resistant electrical sound insulation cotton, comprising a supporting shell, a plurality of sound insulation cotton layers disposed within the supporting shell, and a bending-resistant protective plate disposed between two adjacent sound insulation cotton layers;

[0007] The inner wall of the supporting shell is provided with snap-fit ​​grooves corresponding to each sound insulation cotton layer, and each snap-fit ​​groove is provided with an elastic buffer pad; each side wall of the sound insulation cotton layer snaps into the corresponding snap-fit ​​groove.

[0008] The bending-resistant protective plate is made up of several reflective plates spliced ​​together end to end, and the left and right ends of each reflective plate are respectively connected to the sound insulation cotton layers located at the upper and lower ends. The area between two adjacent reflective plates is filled with moisture-proof balls.

[0009] Furthermore, the surface of the sound insulation cotton layer is provided with corrugated protrusions, the height of which is 1-2 mm and the spacing between adjacent protrusions is 8-10 mm.

[0010] Explanation: The corrugated structure can disrupt the sound wave propagation path, causing the sound waves to reflect multiple times between the protrusions, increasing sound energy dissipation, and improving the absorption efficiency of mid-to-high frequency noise. By limiting the height of the protrusions and the spacing between adjacent protrusions, acoustic performance and structural strength can be balanced to ensure the sound wave scattering effect of the sound insulation cotton layer.

[0011] Furthermore, the moisture-proof ball includes a filler inner ball and a breathable non-woven fabric layer covering the outside of the filler inner ball. The raw material of the filler inner ball is silica gel desiccant particles, and the particle size of the moisture-proof ball is 2-5 mm.

[0012] Note: The inner balls of the filling material use silica gel desiccant granules that can circulate and absorb moisture, preventing the sound insulation cotton layer from becoming clumped or the foam from aging due to moisture, thus maintaining its sound absorption performance over a long period. The breathable non-woven fabric layer on the outside of the moisture-proof balls ensures that the acoustic function of the sound insulation cotton layer is not affected. By limiting the particle size of the moisture-proof balls, the moisture-proof area is maximized.

[0013] Furthermore, the elastic cushioning pad is made of foamed silicone or polyurethane foam material, and the reflector is a magnetic rubber plate.

[0014] Explanation: Both silicone foam and polyurethane foam materials have good elasticity. Inside the supporting shell, when subjected to external pressure or vibration, the elastic cushioning pad can effectively buffer and protect the sound insulation cotton layer from excessive compression or impact, maintaining the structural integrity of the sound insulation cotton layer, thereby ensuring that its sound insulation performance is not damaged. As a reflector, the magnetic rubber plate can effectively reflect sound waves. Between two adjacent sound insulation cotton layers, it can reflect sound waves back into the sound insulation cotton layer, allowing the sound waves to be reflected and absorbed multiple times within the sound insulation cotton layer, thereby improving the efficiency of the sound insulation cotton layer in processing sound waves and enhancing the sound insulation effect.

[0015] Furthermore, the left and right ends of the reflector are connected to the sound insulation cotton layer by a hot melt adhesive layer.

[0016] Note: Connecting the reflector to the sound insulation layer with a hot melt adhesive layer ensures that the reflector is firmly fixed to the sound insulation layer during use, preventing the reflector from shifting or loosening and ensuring overall reliability.

[0017] The beneficial effects of this utility model are:

[0018] This utility model of electrical appliance sound insulation cotton utilizes an alternating arrangement of sound insulation cotton layers and anti-bending protective plates to form multiple sound wave barriers. Through repeated refraction, friction, and heat conversion, sound waves are gradually weakened layer by layer. The anti-bending protective plate is composed of several magnetic rubber reflectors spliced ​​end-to-end, forming a flexible mesh skeleton. This skeleton can bend freely to adapt to shell deformation while providing lateral support to prevent the sound insulation cotton layers from collapsing under pressure. Silicone moisture-proof balls are filled between adjacent reflectors to absorb moisture and prevent the sound insulation cotton layers from hardening due to dampness, maintaining the material's flexibility and ensuring resistance to bending even after long-term use. In summary, this utility model of electrical appliance sound insulation cotton, through its triple design of reflector mesh support, elastic buffering, and moisture protection, significantly improves sound insulation and bending resistance compared to traditional sound insulation materials. It is particularly suitable for electrical equipment that experiences frequent vibration or pressure, combining high sound insulation, structural stability, and long lifespan. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the external structure of the sound insulation cotton layer of this utility model;

[0021] Figure 3 This is a cross-sectional view of the moisture-proof ball of this utility model.

[0022] Among them, 1-support shell, 10-snap groove, 11-elastic buffer pad, 2-sound insulation cotton layer, 20-protrusion, 3-bending protective plate, 30-reflective plate, 31-moisture-proof ball, 310-filler inner ball, 311-breathable non-woven fabric layer, 32-hot melt adhesive layer. Detailed Implementation

[0023] Example 1: As Figure 1 As shown, an electrical appliance sound insulation cotton with bending resistance includes a supporting shell 1, four sound insulation cotton layers 2 disposed inside the supporting shell 1, and a bending-resistant protective plate 3 disposed between two adjacent sound insulation cotton layers 2.

[0024] The inner wall of the supporting shell 1 is provided with snap-fit ​​grooves 10 corresponding to each sound insulation cotton layer 2, and elastic buffer pads 11 are provided in the snap-fit ​​grooves 10; each side wall of the sound insulation cotton layer 2 is snapped into the corresponding snap-fit ​​groove 10.

[0025] The bending-resistant protective plate 3 is made up of 14 reflectors 30 spliced ​​together end to end, and the left and right ends of each reflector 30 are connected to the sound insulation cotton layers 2 located at the upper and lower ends respectively. The area between two adjacent reflectors 30 is filled with moisture-proof balls 31.

[0026] like Figure 2As shown, the surface of the sound insulation cotton layer 2 is provided with corrugated protrusions 20. The height of the protrusions 20 is 1mm and the spacing between adjacent protrusions 20 is 8mm. The corrugated structure can disrupt the sound wave propagation path, causing the sound waves to reflect multiple times between the protrusions 20, increasing sound energy dissipation, and improving the absorption efficiency of mid-to-high frequency noise. By limiting the height of the protrusions 20 and the spacing between adjacent protrusions 20, the acoustic performance and structural strength can be balanced, ensuring the sound wave scattering effect of the sound insulation cotton layer 2.

[0027] like Figure 3 As shown, the moisture-proof ball 31 includes an inner ball 310 filled with silica gel desiccant particles and a breathable non-woven fabric layer 311 covering the outer surface of the inner ball 310. The inner ball 310 is made of silica gel desiccant particles, and the particle size of the moisture-proof ball 31 is 2 mm. The silica gel desiccant particles used in the inner ball 310 can be recycled after absorbing moisture and heating, thus preventing the sound insulation cotton layer 2 from fiber caking or foam aging due to moisture, and maintaining sound absorption performance for a long time. The breathability of the breathable non-woven fabric layer 311 outside the moisture-proof ball 31 ensures that it does not affect the acoustic function of the sound insulation cotton layer 2. By limiting the particle size of the moisture-proof ball 31, the moisture-proof area is maximized.

[0028] The elastic buffer pad 11 is made of foamed silicone or polyurethane foam, and the reflector 30 is made of magnetic rubber. Both foamed silicone and polyurethane foam have good elasticity. Inside the supporting shell 1, when subjected to external pressure or vibration, the elastic buffer pad 11 can effectively buffer and protect the sound insulation cotton layer 2 from excessive compression or collision, maintain the structural integrity of the sound insulation cotton layer 2, and thus ensure that its sound insulation performance is not damaged. As a reflector 30, the magnetic rubber plate can effectively reflect sound waves. Between two adjacent sound insulation cotton layers 2, it can reflect sound waves back into the sound insulation cotton layer 2, so that the sound waves are reflected and absorbed multiple times in the sound insulation cotton layer 2, thereby improving the sound insulation cotton layer 2's efficiency in processing sound waves and enhancing the sound insulation effect.

[0029] The left and right ends of the reflector 30 are connected to the sound insulation cotton layer 2 by a hot melt adhesive layer 32. The hot melt adhesive layer 32 connects the reflector 30 to the sound insulation cotton layer 2, which can ensure that the reflector 30 is firmly fixed to the sound insulation cotton layer 2 during use, prevent the reflector 30 from shifting or loosening, and ensure the overall reliability.

[0030] The working principle of the bend-resistant electrical sound insulation cotton in this embodiment is as follows:

[0031] As the core sound-absorbing material, the sound insulation cotton layer 2 adopts a porous or fiber structure. After sound waves enter, they will be repeatedly refracted and rubbed in its internal pores, converting sound energy into heat energy (through the viscous resistance between air molecules and materials), thereby reducing noise intensity. At the same time, the corrugated protrusions 20 on the surface of the sound insulation cotton layer 2 disrupt the sound wave propagation path, causing the sound waves to be reflected and scattered multiple times between the protrusions. Since there are several sound insulation cotton layers 2 distributed from top to bottom inside the supporting shell 1, it is equivalent to a multi-layer sound-absorbing barrier. When the sound waves penetrate each layer of sound insulation cotton layer 2, they will undergo the process of converting sound energy into heat energy, weakening layer by layer, so that the noise intensity after penetrating all the sound insulation cotton layers 2 is greatly reduced.

[0032] The anti-bending protective plate 3 can effectively reflect sound waves. Between two adjacent sound insulation cotton layers, it can reflect sound waves back into the sound insulation cotton layer, so that the sound waves undergo multiple reflections and absorptions in the sound insulation cotton layer 2, further reducing the energy of the sound waves. At the same time, the anti-bending protective plate 3 supports the two adjacent sound insulation cotton layers 2, increasing the overall strength and stability of the sound insulation cotton layer 2.

[0033] In the environment where the soundproof structure is used, moisture in the air may enter the supporting shell 1. The moisture-proof ball 31 has the ability to absorb moisture from the surrounding environment.

[0034] Example 2: This example differs from Example 1 in that:

[0035] The surface of the sound insulation cotton layer 2 is provided with corrugated protrusions 20, the height of the protrusions 20 is 2mm, and the spacing between adjacent protrusions 20 is 10mm;

[0036] The particle size of the moisture-proof ball 31 is 5mm.

Claims

1. A bending-resistant soundproofing cotton for electrical appliances, characterized by comprising: It includes a supporting shell (1), a plurality of sound insulation cotton layers (2) disposed within the supporting shell (1), and a bending-resistant protective plate (3) disposed between two adjacent sound insulation cotton layers (2); The inner wall of the supporting shell (1) is provided with a snap-fit ​​groove (10) corresponding to each sound insulation cotton layer (2), and an elastic buffer pad (11) is provided in the snap-fit ​​groove (10); each side wall of the sound insulation cotton layer (2) is snapped into the corresponding snap-fit ​​groove (10); The bending-resistant protective plate (3) is made up of several reflective plates (30) spliced ​​together end to end, and the left and right ends of each reflective plate (30) are respectively connected to the sound insulation cotton layers (2) located at the upper and lower ends. The area between two adjacent reflective plates (30) is filled with moisture-proof balls (31).

2. The electrical appliance sound insulation cotton according to claim 1, characterized in that, The surface of the sound insulation cotton layer (2) is provided with corrugated protrusions (20), the height of the protrusions (20) is 1-2 mm, and the distance between adjacent protrusions (20) is 8-10 mm.

3. The electrical appliance sound insulation cotton according to claim 1, characterized in that, The moisture-proof ball (31) includes a filler inner ball (310) and a breathable non-woven fabric layer (311) covering the outside of the filler inner ball (310). The raw material of the filler inner ball (310) is silica gel desiccant particles, and the particle size of the moisture-proof ball (31) is 2-5 mm.

4. The anti-bending acoustic cotton for electric appliances according to claim 1, wherein The elastic buffer pad (11) is made of foamed silicone or polyurethane foam material, and the reflector (30) is a magnetic rubber plate.

5. The electrical appliance sound insulation cotton according to claim 1, characterized in that, The left and right ends of the reflector (30) are connected to the sound insulation cotton layer (2) by a hot melt adhesive layer (32).

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