Composite sound insulation aluminum plate

Abstract

The utility model discloses a composite sound insulation aluminum plate which comprises a decorative plate, one end of the decorative plate is sequentially connected with a first aluminum plate, a second aluminum plate, a buffer plate and a bottom plate, and a plurality of through holes penetrating through the two end faces of the decorative plate are formed in the decorative plate. And dense sound absorption holes are formed in the end face of the first aluminum plate in a matrix mode. The first aluminum plate and the second aluminum plate are arranged in the composite sound insulation aluminum plate, the sound absorption holes penetrating through the two end faces of the first aluminum plate are formed in the first aluminum plate, the supporting columns are arranged on the second aluminum plate, one ends of the supporting columns can penetrate through the sound absorption holes and then abut against the back end face of the decorative plate, and therefore the decorative plate at the front end of the composite sound insulation aluminum plate is supported. The sound absorption cavities are formed between the supporting columns and the sound absorption holes, sound waves penetrate through the decorative plate to enter the sound absorption cavities, multiple times of refraction and reflection are generated between the sound waves and the inner walls of the sound absorption cavities, the sound absorption cavities gradually absorb and reduce energy of the sound waves, and finally the purpose of sound insulation is achieved.

Description

Technical Field

[0001] This application relates to the field of composite aluminum plate technology, and more specifically, to a composite sound-insulating aluminum plate. Background Technology

[0002] In the construction industry, the demand for sound insulation materials is increasing. Composite sound insulation aluminum panels are a type of building material that achieves efficient sound insulation through a multi-layer composite structure. They are lightweight and corrosion-resistant.

[0003] Existing composite sound-insulating aluminum panels achieve sound insulation by setting up sound-absorbing cavities inside and filling them with sound-absorbing media. However, their structure is relatively simple and lacks impact resistance. When the panel of the composite sound-insulating aluminum panel is subjected to physical impact, the panel itself is easily damaged, causing the panel to deform and collapse inward, thus squeezing the sound-absorbing cavity. This results in a reduction in the volume of the sound-absorbing cavity inside the composite sound-insulating aluminum panel, and the sound-absorbing media is compressed, thereby reducing the sound insulation effect.

[0004] Therefore, we propose a composite sound-insulating aluminum plate to solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a composite sound-insulating aluminum plate to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite sound-insulating aluminum plate, comprising:

[0007] A decorative panel, wherein a first aluminum plate, a second aluminum plate, a buffer plate and a base plate are sequentially connected to one end of the decorative panel, and the decorative panel is provided with a plurality of through holes penetrating both ends of the decorative panel;

[0008] The first aluminum plate has dense sound-absorbing holes arranged in a matrix on its end face;

[0009] The second aluminum plate has support columns arranged in a matrix on one end face of the side where it connects to the first aluminum plate. The support columns pass through the sound-absorbing holes and abut against the end face of the decorative panel. The gap between the side wall of the support column and the inner wall of the sound-absorbing hole forms an annular sound-absorbing cavity. The through hole communicates with the sound-absorbing cavity.

[0010] Preferably, the sound-absorbing hole extends obliquely from one end face of the first aluminum plate to the other end face.

[0011] Preferably, the support column extends outward at an angle along the end face of the second aluminum plate, and the slope of the support column is the same as the slope of the sound-absorbing hole.

[0012] Preferably, the sound-absorbing holes and the cross-sectional shape of the support column are both regular polygons.

[0013] Preferably, the decorative panel and the base plate are aluminum plates.

[0014] Preferably, the decorative panel, the first aluminum plate, the second aluminum plate, the buffer plate, and the base plate are integrally connected by an adhesive.

[0015] Preferably, the decorative panel, the first aluminum plate, the second aluminum plate, the buffer plate, and the base plate are integrally connected by an outer frame.

[0016] Preferably, the outer frame has a snap-fit ​​groove inside, one end of which abuts against the front end face of the decorative panel away from the first aluminum plate, and the other end of which abuts against the rear end face of the bottom plate away from the buffer plate.

[0017] The composite sound-insulating aluminum plate provided by this utility model has the following advantages compared with the prior art: This utility model provides a first aluminum plate and a second aluminum plate inside the composite sound-insulating aluminum plate. The first aluminum plate has sound-absorbing holes penetrating both ends, and the second aluminum plate has a support column. One end of the support column can pass through the sound-absorbing hole and abut against the back end face of the decorative panel, thereby supporting the decorative panel at the front end of the composite sound-insulating aluminum plate and enhancing its impact resistance. A sound-absorbing cavity is formed between the support column and the sound-absorbing hole. Sound waves pass through the decorative panel and enter the sound-absorbing cavity, undergoing multiple refractions and reflections with the inner wall of the sound-absorbing cavity, gradually absorbing and reducing the energy of the sound waves, ultimately achieving the purpose of sound insulation. Attached Figure Description

[0018] Figure 1 This is an exploded three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial cross-sectional view of the integral connection state of the composite sound-insulating aluminum plate in Embodiment 1 of this utility model;

[0020] Figure 3 This is a side view cross-sectional diagram of the connected structure in Embodiment 1 of this utility model;

[0021] Figure 4 This is a partial cross-sectional view of the three-dimensional structure of the first aluminum plate of this utility model;

[0022] Figure 5 This is a partial cross-sectional view of the three-dimensional structure of the second aluminum plate of this utility model;

[0023] Figure 6 For the present utility model Figure 2 Enlarged view of a portion of the structure at point A;

[0024] Figure 7 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point B in the middle;

[0025] Figure 8 This is a three-dimensional structural diagram of the integrated connection between the outer frame and the composite sound-insulating aluminum plate in Embodiment 2 of this utility model.

[0026] Figure 9 This is a side view sectional diagram of the structure in the second connection state of this utility model;

[0027] Figure 10 This is a three-dimensional structural diagram of the outer frame in Embodiment 2 of this utility model.

[0028] In the diagram: 1. Decorative panel; 11. Through hole; 2. First aluminum plate; 21. Sound absorption hole; 3. Second aluminum plate; 31. Support column; 4. Buffer layer; 5. Base plate; 6. Sound absorption cavity; 7. Outer frame; 71. Snap-fit ​​groove. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] In addition, the term "multiple" should mean two or more.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0035] like Figures 1 to 7 As shown, a composite sound-insulating aluminum plate includes a decorative plate 1. One end of the decorative plate 1 is sequentially connected to a first aluminum plate 2, a second aluminum plate 3, a buffer plate 4, and a bottom plate 5. The decorative plate 1 is provided with a plurality of through holes 11 penetrating both ends of the decorative plate 1. In use, the through holes 11 are used to allow sound waves to enter the interior of the composite sound-insulating aluminum plate through the through holes 11.

[0036] The first aluminum plate 2 has a matrix of dense sound-absorbing holes 21 on its end face, which are used to reflect the sound waves after passing through the through hole 11 in the sound-absorbing holes 21.

[0037] The second aluminum plate 3 has support columns 31 arranged in a matrix on one end face of the second aluminum plate 3 connected to the first aluminum plate 2, corresponding one-to-one with the sound-absorbing holes 21. The support columns 31 pass through the sound-absorbing holes 21 and abut against the end face of the decorative panel 1. The gap between the side wall of the support column 31 and the inner wall of the sound-absorbing hole 21 forms an annular sound-absorbing cavity 6. The through hole 11 communicates with the sound-absorbing cavity 6. The sound-absorbing hole 21 is used for sound absorption. One end of the root of the support column 31 is connected to the second aluminum plate 3, and the other end passes through the sound-absorbing hole 21 and abuts against the back end face of the decorative panel 1 to support the decorative panel 1, so that the decorative panel 1 has a certain impact resistance and avoids the decorative panel 1 from collapsing and collapsing after being hit, which would reduce the volume of the cavity 6 and thus reduce the sound insulation performance of the composite sound insulation aluminum plate. During the propagation process, the sound waves pass through the through hole 11 of the decorative panel 1 and enter the annular sound-absorbing cavity 6, collide with the inner wall of the sound-absorbing cavity 6 and be refracted, thereby using the sound-absorbing cavity 6 to absorb the sound wave energy and achieve the purpose of sound insulation.

[0038] Furthermore, the sound-absorbing hole 21 extends obliquely from one end face of the first aluminum plate 2 to the other end face, which is used to change the incident angle between the sound wave and the inner wall of the sound-absorbing cavity 6, so that the incident angle is less than 90°. This causes the sound wave to collide with the inner wall of the sound-absorbing cavity 6 multiple times during its propagation in the sound-absorbing cavity 6. After the collision, the sound wave is refracted by the inner wall of the sound-absorbing cavity 6, thereby gradually weakening and absorbing the energy of the sound wave, and finally achieving the purpose of sound insulation.

[0039] Furthermore, the support column 31 extends outward at an angle along the end face of the second aluminum plate 3, and the slope of the support column 31 is the same as the slope of the sound-absorbing hole 21, so that the sound-absorbing cavity 6 formed between the support column 31 and the sound-absorbing hole 21 also extends at an angle. Since the slopes of the opposite side walls in the inner wall of the sound-absorbing cavity 6 are the same, they are parallel to each other, which facilitates the smooth transmission of sound waves, and then they come into contact with the side walls of the sound-absorbing cavity 6 and are refracted.

[0040] Furthermore, the sound-absorbing hole 21 and the support column 31 are both regular polygons in cross-sectional shape, which are used to improve the structural strength of the first aluminum plate 2 and the second aluminum plate 3.

[0041] Furthermore, the decorative panel 1 and the base plate 5 are aluminum plates, which are used to achieve corrosion prevention and oxidation resistance on one side of the composite sound insulation aluminum plate.

[0042] Furthermore, the decorative panel 1, the first aluminum plate 2, the second aluminum plate 3, the buffer plate 4, and the base plate 5 are integrally connected by adhesive.

[0043] The specific working principle of Embodiment 1 of this utility model is as follows: The composite sound-insulating aluminum plate is integrally connected by an adhesive through a decorative plate 1, a first aluminum plate 2, a second aluminum plate 3, a buffer plate 4, and a base plate 5 connected in sequence. The decorative plate 1 is provided with a through hole 11, and the first aluminum plate 2 at the rear end of the decorative plate 1 is provided with a sound-absorbing hole 21 penetrating both ends of the first aluminum plate 2. The second aluminum plate 3 is provided with a support column 31, the cross-sectional area of ​​which is smaller than the cross-sectional area of ​​the sound-absorbing hole 21, so that one end of the support column 31 can pass through the sound-absorbing hole 21. The support column 31 abuts against the back end face of the decorative panel 1, thereby supporting the decorative panel 1 and enhancing the impact resistance of the composite sound insulation aluminum plate. An annular sound absorption cavity 6 is formed between the support column 31 and the sound absorption hole 21. The sound absorption cavity 6 extends at an angle to the horizontal end face. After the sound wave passes through the through hole 11 on the decorative panel 1, it enters the sound absorption cavity 6 formed between the sound absorption hole 21 and the support column 31. Multiple refractions and reflections occur between the sound absorption cavity 6 and the inner wall of the sound absorption cavity 6, thereby absorbing and reducing the energy of the sound wave, and finally achieving the purpose of sound insulation.

[0044] Example 2: Figure 8 , Figure 9 and Figure 10 As shown, the difference from Embodiment 1 is that a composite sound-insulating aluminum plate, decorative plate 1, first aluminum plate 2, second aluminum plate 3, buffer plate 4 and base plate 5 are integrally connected by an outer frame 7.

[0045] Furthermore, the outer frame 7 is provided with a snap-fit ​​groove 71 inside. One end of the snap-fit ​​groove 71 abuts against the front end face of the decorative panel 1 away from the first aluminum plate 2, and the other end of the snap-fit ​​groove 71 abuts against the rear end face of the bottom plate 5 away from the buffer plate 4.

[0046] Specifically, the decorative panel 1, the first aluminum plate 2, the second aluminum plate 3, the buffer plate 4, and the base plate 5 are integrally connected by the outer frame 7. The two ends of the snap-fit ​​groove 71 inside the outer frame 7 abut against the front end of the decorative panel 1 and the rear end of the base plate 5, respectively, so as to connect the decorative panel 1, the first aluminum plate 2, the second aluminum plate 3, the buffer plate 4, and the base plate 5 into a tight composite structure, and securely snap-fit ​​them in the outer frame 7 to achieve a stable connection.

[0047] The specific working principle of Embodiment 2 of this utility model is as follows: It provides another connection method for composite sound insulation aluminum plates besides Embodiment 1, which enhances the stability, impact resistance and durability of the overall composite structure of the composite sound insulation aluminum plate, and ensures that different connection methods can be flexibly selected under different installation environments and usage conditions. The decorative panel 1, the first aluminum plate 2, the second aluminum plate 3, the buffer plate 4 and the base plate 5 of the composite sound insulation aluminum plate are tightly connected to ensure a good sound insulation effect.

[0048] The above-described specific embodiments are merely preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A composite sound-insulating aluminum plate, characterized in that, include: Decorative panel (1), one end of which is connected in sequence to a first aluminum plate (2), a second aluminum plate (3), a buffer plate (4) and a base plate (5), and the decorative panel (1) is provided with several through holes (11) penetrating both ends of the decorative panel (1); The first aluminum plate (2) has dense sound-absorbing holes (21) arranged in a matrix on the end face of the first aluminum plate (2). The second aluminum plate (3) has a matrix of support columns (31) on one side end face connected to the first aluminum plate (2) that correspond one-to-one with the sound-absorbing holes (21). The support columns (31) pass through the sound-absorbing holes (21) and abut against the end face of the decorative panel (1). The gap between the side wall of the support column (31) and the inner wall of the sound-absorbing hole (21) forms an annular sound-absorbing cavity (6). The through hole (11) is connected to the sound-absorbing cavity (6).

2. The composite sound-insulating aluminum plate according to claim 1, characterized in that: The sound-absorbing hole (21) extends obliquely from one end face of the first aluminum plate (2) to the other end face.

3. The composite sound-insulating aluminum plate according to claim 2, characterized in that: The support column (31) extends outward at an angle along the end face of the second aluminum plate (3), and the slope of the support column (31) is the same as the slope of the sound-absorbing hole (21).

4. The composite sound-insulating aluminum plate according to claim 3, characterized in that: The sound-absorbing hole (21) and the support column (31) both have regular polygonal cross-sectional shapes.

5. The composite soundproofing aluminum panel according to claim 4, wherein: The decorative panel (1) and the base plate (5) are made of aluminum plates.

6. The composite soundproofing aluminum panel according to claim 5, wherein: The decorative panel (1), the first aluminum plate (2), the second aluminum plate (3), the buffer plate (4), and the base plate (5) are integrally connected by adhesive.

7. The composite sound-insulating aluminum plate according to claim 5, characterized in that: The decorative panel (1), the first aluminum plate (2), the second aluminum plate (3), the buffer plate (4), and the base plate (5) are integrally connected by an outer frame (7).

8. The composite sound-insulating aluminum plate according to claim 7, characterized in that: The outer frame (7) has a snap-fit ​​groove (71) inside. One end of the snap-fit ​​groove (71) abuts against the front end face of the decorative panel (1) away from the first aluminum plate (2), and the other end of the snap-fit ​​groove (71) abuts against the rear end face of the bottom plate (5) away from the buffer plate (4).

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