Soundproofing and noise reduction aluminum plate
By introducing a multi-layered composite structure of diamond-shaped mesh plates, high-damping rubber materials, sound-absorbing plates, and inner aluminum plates into the aluminum plate, the problem of noise penetration of existing aluminum plates is solved, achieving a highly efficient sound insulation and noise reduction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINCHENG ALUMINUM CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
AI Technical Summary
Existing composite aluminum panels perform poorly in terms of noise penetration, making it difficult to meet the noise reduction and sound insulation standards required by the market.
The system uses a diamond-shaped grid plate filled with high-damping rubber material, combined with sound-absorbing panels, support rods, and an inner aluminum plate. Through multi-dimensional reflection, scattering, absorption, and blocking of sound waves, a reasonable propagation path is designed to maximize the noise reduction effect.
It achieves continuous loss of sound wave energy and effective sound insulation and noise reduction. Through multi-layer composite structure design, it significantly improves the sound insulation performance of aluminum plate.
Smart Images

Figure CN224351430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plate technology, specifically to a sound-insulating and noise-reducing aluminum plate. Background Technology
[0002] Aluminum sheets are widely used due to their advantages such as high strength, lightweight, good fire resistance, easy processing, and aesthetic appeal and environmental friendliness. In particular, composite aluminum sheets not only have high strength, pressure resistance, and impact resistance, but also maintain their lightweight characteristics. However, the internal structure of existing composite aluminum sheets is relatively simple, and they lack internal noise reduction and sound insulation materials, which makes it easy for noise to penetrate and fails to meet the market demand standards for noise reduction and sound insulation.
[0003] Therefore, there is an urgent need for a sound-insulating and noise-reducing aluminum plate to solve the above problems. Utility Model Content
[0004] To achieve the above objectives, this utility model provides the following technical solution: a sound-insulating and noise-reducing aluminum plate, comprising an aluminum plate frame and an aluminum single plate disposed on one side of the aluminum plate frame, and further comprising a diamond-shaped grid plate disposed on the bottom wall of the aluminum plate frame, wherein the diamond-shaped holes of the diamond-shaped grid plate are filled with a high-damping rubber material plate, and the filling rate is 85%-95%, and a sound-absorbing plate is provided on the side of the diamond-shaped grid plate near the aluminum single plate, the sound-absorbing plate having a pleated design, and multiple support rods are provided on the side of the sound-absorbing plate away from the diamond-shaped grid plate, the support rods being arranged in an alternating manner.
[0005] Each of the aforementioned support rods has an inner aluminum plate on the side away from the sound-absorbing panel.
[0006] The inner aluminum plate has multiple micro-perforations on its surface, and each micro-perforation is equidistant from the others.
[0007] The sound-absorbing panel is made of polyester fiber sound-absorbing cotton.
[0008] The aluminum panel is provided with a fixing component for fixing to the aluminum panel frame. The fixing component includes a plurality of countersunk holes that are equidistantly arranged on the side of the aluminum panel away from the aluminum panel frame. Each of the countersunk holes is provided with a bolt. The side of the aluminum panel frame that is close to the aluminum panel is provided with a plurality of threaded holes, and each of the threaded holes is matched with a bolt.
[0009] The aluminum panel is provided with a rubber clamping plate on the side near the aluminum frame.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] The sound-insulating and noise-reducing aluminum plate of this utility model maximizes the noise reduction efficiency by reflecting, scattering, absorbing and blocking sound waves in multiple dimensions and at multiple levels through a diamond-shaped grid plate, a sound-absorbing plate, a support rod and an inner aluminum plate. At the same time, through a multi-composite structure design and reasonable installation arrangement, the propagation path of sound waves inside the aluminum plate is cleverly guided, causing its energy to be continuously dissipated, thereby achieving the effect of sound insulation and noise reduction. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the fixing component structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the aluminum plate frame of this utility model;
[0015] Figure 4 This is a schematic diagram of the threaded hole structure of this utility model.
[0016] In the diagram: 101, aluminum frame; 102, aluminum single panel; 2, diamond grid panel; 3, high damping rubber material panel; 4, sound-absorbing panel; 5, support rod; 6, inner aluminum panel; 7, micro-perforation; 8, rubber clamping plate; 901, countersunk hole; 902, bolt; 903, threaded hole. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1
[0019] Please see Figures 1-4 The diagram shows a sound-insulating and noise-reducing aluminum plate, including an aluminum plate frame 101 and an aluminum single plate 102 disposed on one side of the aluminum plate frame 101. It also includes a diamond-shaped grid plate 2 disposed on the bottom wall of the aluminum plate frame 101. The diamond-shaped holes of the diamond-shaped grid plate 2 are filled with a high-damping rubber material plate 3, and the filling rate is 85%-95%. A sound-absorbing plate 4 is provided on the side of the diamond-shaped grid plate 2 close to the aluminum single plate 102. The sound-absorbing plate 4 has a pleated design. Multiple support rods 5 are provided on the side of the sound-absorbing plate 4 away from the diamond-shaped grid plate 2. The support rods 5 are arranged in an alternating manner.
[0020] It should be noted that the sound waves are reflected, scattered, absorbed, and blocked in multiple dimensions and at multiple levels through the diamond-shaped mesh plate 2, sound-absorbing plate 4, support rod 5, and inner aluminum plate 6, thereby maximizing the noise reduction effect. At the same time, through the design of multiple composite structures and reasonable installation, the propagation path of the sound waves inside the aluminum plate is cleverly guided, causing its energy to be continuously dissipated, thereby achieving the effect of sound insulation and noise reduction.
[0021] Please see Figure 3 In the diagram, each support rod 5 has an inner aluminum plate 6 on the side away from the sound-absorbing plate 4.
[0022] It should be noted that the inner aluminum plate 6 plays the crucial role of sound insulation, and its surface can be finely anodized as needed to effectively improve corrosion resistance and surface hardness.
[0023] Please see Figure 3 The inner aluminum plate 6 shown in the figure has multiple micro-perforations 7 on its surface, and each micro-perforation 7 is equidistant.
[0024] It should be noted that: multiple micro-perforations 7 are equidistantly arranged on the surface of the inner aluminum plate 6, which utilize the principle of resonance to accurately absorb sound waves of a specific frequency, reduce residual noise, and at the same time prevent sound waves from accumulating in the aluminum plate frame 101 and causing undesirable phenomena such as echoes.
[0025] Please see Figure 3 The sound-absorbing panel 4 in the diagram is made of polyester fiber sound-absorbing cotton.
[0026] It should be noted here that by making the sound-absorbing panel 4 from polyester fiber sound-absorbing cotton, the sound wave energy is efficiently captured and converted into heat energy and dissipated through internal friction, adhesion and other mechanisms.
[0027] Working principle: When using this composite aluminum plate, the diamond grid plate 2, sound-absorbing plate 4, support rod 5 and inner aluminum plate 6 are sequentially filled into the aluminum plate frame 101, and the fixing components are used to connect and fix the aluminum single plate 102 to the aluminum plate frame 101. Under the pressure of the rubber pressing plate 8, the various sound insulation and noise reduction material plates are pressed and fixed.
[0028] Then, the assembled composite aluminum plate is installed at the installation point as required. During use, when external noise is transmitted to the outer surface of the aluminum plate frame 101, the high reflectivity of the smooth surface is used to reflect most of the sound waves back, thereby reducing the sound wave energy entering the aluminum plate from the source. After some noise enters the aluminum plate frame 101, the diamond grid plate 2 structure is like a complex maze, causing the sound waves to be repeatedly refracted and scattered in many diamond units, dispersing the sound wave energy. At the same time, the high damping rubber material plate 3 uses its own adhesive properties to efficiently convert the sound wave vibration energy into heat energy and quietly consume it, thereby effectively suppressing the vibration of the aluminum plate.
[0029] The pleated sound-absorbing panel 4 located inside the diamond-shaped grid panel 2 is made of polyester fiber sound-absorbing cotton. The pleated design greatly increases the contact area between the sound-absorbing material and the sound waves. When the sound waves propagate to this point, the sound-absorbing material efficiently captures and converts the sound wave energy into heat energy through internal friction, adhesion and other mechanisms. Moreover, the pleated structure guides the sound waves to propagate in a roundabout way, extending their residence time and path in the sound-absorbing layer, further improving the sound absorption effect.
[0030] Further inward, the staggered sound insulation support rods 5 are composed of a crisscrossing aluminum alloy profile mesh structure. They are tightly fixed to the sound-absorbing panel 4 and have an air layer between them and the inner aluminum plate 6. On the one hand, the support rods 5 provide structural support for the sound-absorbing panel 4 to resist external forces. On the other hand, the air layer utilizes its low thermal conductivity and acoustic impedance characteristics to block some sound waves after they have struggled to pass through the sound-absorbing panel 4, preventing them from easily penetrating the inner aluminum plate 6 and enhancing the overall sound insulation effect. At the same time, micro-perforations 7 are evenly distributed on the inner aluminum plate 6, with precise control of the perforation rate. When a very small number of sound waves break through the previous multiple layers of defense and reach the inner aluminum plate 6, the micro-perforations 7 use the principle of resonance to precisely absorb sound waves of specific frequencies, reducing residual noise. This also prevents sound waves from accumulating in the aluminum plate frame 101 and causing echoes and other undesirable phenomena, thereby ultimately achieving effective sound insulation and noise reduction.
[0031] Example 2
[0032] Please see Figure 2 and Figure 4 This embodiment further illustrates Example 1. The aluminum panel 102 in the figure is provided with a fixing component for fixing to the aluminum frame 101. The fixing component includes a plurality of countersunk holes 901 that are equidistantly arranged on the side of the aluminum panel 102 away from the aluminum frame 101. Each countersunk hole 901 is provided with a bolt 902. The side of the aluminum frame 101 close to the aluminum panel 102 is provided with a plurality of threaded holes 903. Each threaded hole 903 is matched with the bolt 902.
[0033] It should be noted here that the fixing components are used to connect and fix the aluminum panel 102 and the aluminum frame 101.
[0034] Example 3
[0035] Please see Figure 3 This embodiment is a further explanation of other embodiments. In the figure, the aluminum single panel 102 is provided with a rubber abutment plate 8 on the side near the aluminum plate frame 101.
[0036] It should be noted that: by setting the rubber clamping plate 8, when the aluminum single panel 102 and the aluminum frame 101 are connected and fixed, the rubber clamping plate 8 can be used to clamp each sound insulation and noise reduction material panel, thereby ensuring the positional stability of each sound insulation and noise reduction material panel inside the aluminum frame 101. At the same time, when each sound insulation and noise reduction material panel is subjected to noise wave impact, the rubber clamping plate 8 can be used to provide a buffering effect for each sound insulation and noise reduction material panel.
[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A sound-insulating and noise-reducing aluminum plate, comprising: An aluminum frame (101) and an aluminum single panel (102) disposed on one side of the aluminum frame (101); characterized in that it further includes: A diamond-shaped mesh plate (2) is set on the bottom wall of the aluminum plate frame (101). The diamond-shaped holes of the diamond-shaped mesh plate (2) are filled with a high-damping rubber material plate (3) with a filling rate of 85%-95%. A sound-absorbing plate (4) is provided on the side of the diamond-shaped mesh plate (2) close to the aluminum single plate (102). The sound-absorbing plate (4) has a pleated design. Multiple support rods (5) are provided on the side of the sound-absorbing plate (4) away from the diamond-shaped mesh plate (2). The support rods (5) are arranged in an alternating manner. Each of the support rods (5) has an inner aluminum plate (6) on the side away from the sound-absorbing plate (4); The inner aluminum plate (6) has multiple micro-perforations (7) on its surface, and each micro-perforation (7) is equidistant.
2. The sound-insulating and noise-reducing aluminum plate according to claim 1, characterized in that: The sound-absorbing panel (4) is made of polyester fiber sound-absorbing cotton.
3. The sound-insulating and noise-reducing aluminum plate according to claim 2, characterized in that: The aluminum panel (102) is provided with a fixing component for fixing to the aluminum frame (101). The fixing component includes a plurality of countersunk holes (901) that are equidistantly arranged on the side of the aluminum panel (102) away from the aluminum frame (101). Each of the countersunk holes (901) is provided with a bolt (902). The aluminum frame (101) is provided with a plurality of threaded holes (903) on the side of the aluminum panel (102). Each of the threaded holes (903) is matched with the bolt (902).
4. The sound-insulating and noise-reducing aluminum plate according to claim 3, characterized in that: The aluminum panel (102) is provided with a rubber abutment plate (8) on the side near the aluminum frame (101).