Suspended ceiling acoustic panel

Abstract

The utility model relates to a suspended ceiling acoustical board which comprises an acoustical board body, a first square groove is formed in the surface of the acoustical board body, a second square groove is formed in one end of the interior of the first square groove, a third square groove is formed in one end of the interior of the second square groove, and acoustical components are installed at the tops of the first square groove, the second square groove and the third square groove. According to the utility model, sound waves in the multi-stage groove structure encounter the steps to change directions, partially enter the deeper grooves and partially reflect back to the preceding-stage grooves to form multiple reflections, so that the length and the times of the reflection propagation path of the sound waves in the groove structure are increased, and the sound waves are repeatedly reflected, refracted and diffracted on the inner walls (especially the complex surfaces of the steps) of the grooves and are more frequently and violently rubbed with the wall surfaces; more sound energy is converted into heat energy to be consumed, and the sound absorption effect can be improved without stacking sound absorption materials.

Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing panels, specifically ceiling sound-absorbing panels. Background Technology

[0002] A suspended ceiling refers to a type of decoration on the top of a living space. Simply put, it refers to the decoration of the ceiling and is an important part of interior decoration. Currently available suspended ceiling panels are easy to install and have good sound absorption effects.

[0003] According to the published patent 202321863258.5, a sound-absorbing ceiling panel includes a sound-absorbing frame. A moisture-proof layer is bonded to the inside of the sound-absorbing frame. Dry particles are filled between the bottom of the moisture-proof layer and the sound-absorbing frame. A first heat-insulating layer is provided on top of the moisture-proof layer, and a second heat-insulating layer is bonded to the top of the first heat-insulating layer. A sound-absorbing cover is installed on top of the sound-absorbing frame. This design achieves good heat insulation, ensuring indoor comfort, while also providing good moisture resistance, preventing the ceiling panel from warping and aging due to moisture penetration. It is highly practical.

[0004] However, in practice, traditional ceiling acoustic panels typically rely on the sound-absorbing structure on their surface to achieve sound absorption. This effect is achieved by stacking multiple layers of sound-absorbing material. However, to improve the sound absorption effect, even more layers of sound-absorbing material are often needed, which increases the overall thickness of the acoustic panel. Conversely, using thinner sound-absorbing material makes it difficult to guarantee a good sound absorption effect. Therefore, new technical solutions are needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a ceiling sound-absorbing panel to solve the problem that current traditional ceiling sound-absorbing panels usually rely on the sound-absorbing structure set on their surface to achieve the sound absorption function. This sound absorption effect is achieved by stacking multiple layers of sound-absorbing materials together. However, if the sound absorption effect is to be improved, more layers of sound-absorbing materials are often needed, which will increase the overall thickness of the sound-absorbing panel. Conversely, if thinner sound-absorbing materials are used, it is difficult to guarantee a good sound absorption effect.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a ceiling sound-absorbing panel is designed, including a sound-absorbing panel body. A first square groove is opened on the surface of the sound-absorbing panel body. A second square groove is opened at one end of the first square groove. A third square groove is opened at one end of the second square groove. Sound-absorbing components are installed on the top of the first square groove, the second square groove and the third square groove.

[0007] Preferably, the sound-absorbing component includes a frame-shaped housing, and the top of the frame-shaped housing has multiple sets of sound-absorbing grooves, each set having two sound-absorbing grooves, one deep and one shallow.

[0008] Preferably, the inner wall of the frame-shaped housing is provided with a frame-shaped groove, and a honeycomb sound-absorbing frame plate is fixed at the opening of the frame-shaped groove.

[0009] Preferably, one end of the honeycomb sound-absorbing frame is fixed with sound-insulating cotton, which extends into the frame groove and is fixed to the inner wall of the frame groove.

[0010] Preferably, the first square groove, the second square groove, and the third square groove are connected by a height difference to form a stepped shape.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model combines multiple square grooves. After the sound wave enters the first-level groove, it encounters the steps of the second-level groove before reaching the bottom. The steps force the sound wave to change direction, with some entering the deeper second-level groove and some being reflected back to the first-level groove. Simultaneously, the sound wave repeats the above reflection upon entering the third-level groove. This increases the path length and number of times the sound wave reflects and propagates within the groove structure. The sound wave repeatedly reflects, refracts, and diffracts on the inner wall of the groove (especially the complex surface formed by the steps), resulting in more frequent and intense friction with the wall surface, converting more sound energy into heat energy and thus improving the sound absorption effect. It eliminates the need for stacking sound-absorbing materials, solving the technical problem of traditional ceiling sound-absorbing panels, which typically rely on the sound-absorbing structure on their surface to achieve sound absorption. This sound absorption effect is achieved by stacking multiple layers of sound-absorbing materials. However, to improve the sound absorption effect, more layers of sound-absorbing materials are often needed, which increases the overall thickness of the sound-absorbing panel. Conversely, using thinner sound-absorbing materials makes it difficult to guarantee a good sound absorption effect.

[0013] 2. This utility model combines a frame-shaped shell and sound-absorbing grooves. The frame-shaped shells are set on the steps of multiple square grooves. The multiple sets of sound-absorbing grooves set on the surface of the frame-shaped shells, since each set of sound-absorbing grooves has a different depth, can absorb high-frequency sound waves in the shallow area and low-frequency sound waves resonate in the deep pit, thereby improving the sound absorption effect.

[0014] 3. This utility model uses a honeycomb sound-absorbing frame and sound-insulating cotton. When the sound is inserted into the multiple square grooves, the honeycomb sound-absorbing frame will absorb and reduce noise at different positions. Moreover, after the sound passes through the honeycomb sound-absorbing plate and enters the frame groove, it will be further absorbed by the sound-insulating cotton in the frame groove, thus improving the sound absorption effect. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0017] Figure 3 This is a schematic diagram of the frame-type groove structure of this utility model.

[0018] In the diagram: 1. Sound-absorbing panel; 101. First square groove; 102. Second square groove; 103. Third square groove; 2. Frame-shaped shell; 201. Sound-absorbing groove; 202. Honeycomb sound-absorbing frame panel; 203. Frame-shaped groove; 3. Sound insulation cotton. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Example 1: Ceiling sound-absorbing panel, see Figures 1 to 3 The system includes a sound-absorbing panel 1. A first square groove 101 is formed on the surface of the sound-absorbing panel 1. A second square groove 102 is formed at one end of the first square groove 101. A third square groove 103 is formed at one end of the second square groove 102. Sound-absorbing components are installed on the tops of the first square groove 101, the second square groove 102, and the third square groove 103. When a sound wave enters the first square groove 101, it encounters a step in the second square groove 102 before reaching the bottom of the groove. The step changes the original direction of sound wave propagation. At this time, some sound waves follow the guidance of the step and enter the second, deeper groove to continue their propagation journey; while other sound waves are reflected back to the first square groove 101 by the step, forming the first reflection. When the sound wave continues to travel and enters the third square groove 103, the above reflection process is repeated. The sound wave continuously shuttles within the groove structure, increasing the path length of its back-and-forth reflection and propagation, thus increasing the reflection... The frequency of sound waves also increases significantly. During the contact between the sound waves and the inner wall of the groove, especially the complex surface formed by the steps, reflection, refraction, and diffraction phenomena occur repeatedly. Each contact with the wall causes more frequent and intense friction between the sound waves and the wall. This friction converts more of the sound energy carried by the sound waves into heat energy, which is ultimately consumed as heat energy. In this way, the sound absorption effect is effectively improved without relying on the stacking of sound-absorbing materials, achieving efficient sound absorption and noise reduction. This solves the technical problem that traditional ceiling sound-absorbing panels usually rely on the sound-absorbing structure set on their surface to achieve the sound absorption function. This sound absorption effect is achieved by stacking multiple layers of sound-absorbing materials together. However, to improve the sound absorption effect, it is often necessary to stack more layers of sound-absorbing materials, which will increase the overall thickness of the sound-absorbing panel. Conversely, if thinner sound-absorbing materials are used, it is difficult to guarantee a good sound absorption effect.

[0021] For details, see Figure 1 and Figure 2The sound-absorbing component includes a frame-shaped housing 2. Multiple sets of sound-absorbing grooves 201 are formed on the top of the frame-shaped housing 2. Each set of grooves 201 consists of two grooves, one deep and one shallow. Multiple sets of sound-absorbing grooves 201 are also formed on the surface of the frame-shaped housing 2. The depths of the grooves 201 vary. When sound waves enter this structure, sound waves of different frequencies will interact differently with the sound-absorbing grooves 201 according to their own characteristics. High-frequency sound waves have the characteristics of short wavelengths and concentrated energy. The size of the shallow sound-absorbing grooves 201 matches the wavelength of the high-frequency sound waves. When the high-frequency sound waves reach the shallow grooves... When the sound-absorbing groove 201 is in the deep zone, the groove wall will generate strong scattering and friction on the sound waves, quickly absorbing the energy of the high-frequency sound waves and converting it into heat energy. This makes the high-frequency sound waves effectively absorbed in the shallow zone. The low-frequency sound waves have a longer wavelength and their energy is relatively dispersed. When the low-frequency sound waves enter the deep zone sound-absorbing groove 201, they will induce a resonance phenomenon in the groove. During the resonance process, there is a violent energy exchange between the sound waves, the air in the groove, and the groove wall. The energy of the sound waves is continuously absorbed and dissipated by the groove structure and converted into heat energy and other forms of energy, thereby achieving efficient absorption of low-frequency sound waves.

[0022] Further, see Figure 1 The inner wall of the frame-shaped housing 2 is provided with a frame-shaped groove 203, and a honeycomb sound-absorbing frame plate 202 is fixed at the opening of the frame-shaped groove 203.

[0023] It is worth noting that, see Figure 3 One end of the honeycomb sound-absorbing frame panel 202 is fixed with sound-insulating cotton 3, which extends into the frame-shaped groove 203 and is fixed to the inner wall of the frame-shaped groove 203. When sound penetrates into the multiple square grooves, it first encounters the honeycomb sound-absorbing frame panel 202. The honeycomb sound-absorbing frame panel 202 has a honeycomb structure composed of numerous hexagonal holes. After sound absorption by the honeycomb sound-absorbing frame panel 202, some sound will pass through the honeycomb sound-absorbing frame panel 202 and enter the frame-shaped groove 203. At this time, the sound-insulating cotton 3 in the frame-shaped groove 203 will play a further sound-absorbing role.

[0024] It is worth noting that, see Figure 1 The first square groove 101, the second square groove 102 and the third square groove 103 form a stepped shape through the height difference.

[0025] When using ceiling-mounted sound-absorbing panels, when sound waves enter the first square groove 101, they encounter the steps of the second square groove 102 before reaching the bottom. These steps alter the original propagation direction of the sound waves. At this point, some sound waves follow the guidance of the steps and enter the deeper second-level groove to continue their propagation journey; while other sound waves are reflected back to the first square groove 101, forming the first reflection. As the sound waves continue their journey and enter the third square groove 103, the above reflection process repeats. The sound waves continuously shuttle within the groove structure, increasing the path length for back-and-forth reflection and propagation, and significantly increasing the number of reflections. During the contact between the sound waves and the inner wall of the groove, especially the complex surface formed by the steps, repeated reflection, refraction, and diffraction occur. Each contact with the wall causes more frequent and intense friction between the sound waves and the wall. This friction converts more of the sound energy carried by the sound waves into heat energy, which is ultimately dissipated as heat. In this way, without relying on the stacking of sound-absorbing materials, the sound absorption effect is effectively improved, achieving high efficiency. For sound absorption and noise reduction, multiple sets of sound-absorbing grooves 201 are formed on the surface of the frame-shaped shell 2. The depth of the sound-absorbing grooves 201 varies. When sound waves enter this structure, sound waves of different frequencies will interact with the sound-absorbing grooves 201 differently according to their own characteristics. High-frequency sound waves have the characteristics of short wavelength and concentrated energy. The size of the shallow sound-absorbing grooves 201 is matched with the wavelength of high-frequency sound waves. When high-frequency sound waves reach the shallow sound-absorbing grooves 201, the groove walls will generate strong scattering and friction on the sound waves, quickly absorbing the energy of the high-frequency sound waves. The sound is converted into heat energy, allowing high-frequency sound waves to be effectively absorbed in the shallow zone. Low-frequency sound waves, with their longer wavelengths and relatively dispersed energy, resonate within the deep sound-absorbing groove 201. During resonance, a vigorous energy exchange occurs between the sound waves, the air inside the groove, and the groove walls. The energy of the sound waves is continuously absorbed and dissipated by the groove structure, converting into heat and other forms of energy, thus achieving efficient absorption of low-frequency sound waves. When sound penetrates into the multiple square grooves, it first encounters the honeycomb sound-absorbing frame plate 202. The honeycomb sound-absorbing frame plate 202 has a honeycomb structure composed of numerous hexagonal holes. After sound absorption by the honeycomb sound-absorbing frame plate 202, some sound passes through it and enters the frame-shaped groove 203. At this point, the sound-absorbing cotton 3 inside the frame-shaped groove 203 further absorbs the sound.

[0026] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A ceiling sound-absorbing panel, comprising a sound-absorbing panel body (1), characterized in that, The sound-absorbing panel (1) has a first square groove (101) on its surface, a second square groove (102) is provided at one end of the first square groove (101), a third square groove (103) is provided at one end of the second square groove (102), and sound-absorbing components are installed on the top of the first square groove (101), the second square groove (102) and the third square groove (103).

2. The ceiling sound-absorbing panel as described in claim 1, characterized in that, The sound-absorbing component includes a frame-shaped housing (2), and the top of the frame-shaped housing (2) has multiple sets of sound-absorbing grooves (201), each set of sound-absorbing grooves (201) consists of two grooves, one deep and one shallow.

3. The ceiling sound-absorbing panel as described in claim 2, characterized in that, The inner wall of the frame-shaped housing (2) is provided with a frame-shaped groove (203), and a honeycomb sound-absorbing frame plate (202) is fixed at the opening of the frame-shaped groove (203).

4. The ceiling sound-absorbing panel as described in claim 3, characterized in that, One end of the honeycomb sound-absorbing frame plate (202) is fixed with sound-insulating cotton (3), which extends into the frame groove (203) and is fixed to the inner wall of the frame groove (203).

5. The ceiling sound-absorbing panel as described in claim 1, characterized in that, The first square groove (101), the second square groove (102), and the third square groove (103) form a stepped shape through the height difference.

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