A curved super-microporous sound-absorbing honeycomb aluminum plate unit

Abstract

The utility model discloses a kind of curved surface supermicro hole sound absorption honeycomb aluminum plate units, it is related to sound absorption aluminum plate field, including aluminum honeycomb core material, aluminum honeycomb core material is internally provided with filter aluminum honeycomb groove, aluminum honeycomb core material two sides are respectively fixedly connected with perforated aluminum plate non-woven fabric, one perforated aluminum plate non-woven fabric side is connected with perforated aluminum plate, another perforated aluminum plate non-woven fabric side is equipped with micro-perforated aluminum plate, the utility model makes improvement to prior art, by curved surface design, this structure can effectively gather sound.In addition, noise is first inhaled into aluminum honeycomb core material by perforated aluminum plate and circulates, and then further weaken the propagation and reflection of sound wave using micro-perforated aluminum plate.This design significantly enhances the absorption capacity of high-frequency noise of material, and greatly improves the overall sound absorption effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound absorption aluminum plate field, concretely relates to a curved surface supermicro hole sound absorption honeycomb aluminum plate unit. BACKGROUND

[0002] With the acceleration of urbanization process and the increase of building density, noise pollution problem is increasingly serious, and higher requirements are put forward to the acoustic performance of the building interior and the surrounding environment. The conventional honeycomb aluminum plate is usually a laminated composite structure formed by bonding two thin aluminum plates and light aluminum honeycomb core material by adhesive. This structure mainly relies on thickness and density for sound insulation, and has sound insulation performance to some extent, but the absorption effect of high frequency noise is not significant, and it is difficult to meet the high standard acoustic demand. Therefore, a honeycomb sound absorption and insulation aluminum plate with more excellent acoustic performance, higher structural stability and simple manufacturing process is urgently needed to meet the diversification demand of modern buildings on acoustic environment. SUMMARY

[0003] In view of the problems in the related art, the utility model provides a curved surface supermicro hole sound absorption honeycomb aluminum plate unit to overcome the above technical problems existing in the prior art.

[0004] Therefore, the utility model adopts the specific technical scheme as follows:

[0005] A curved surface supermicro hole sound absorption honeycomb aluminum plate unit, comprising an aluminum honeycomb core material, an aluminum honeycomb core material is internally provided with a filter aluminum honeycomb groove, and the two sides of the aluminum honeycomb core material are respectively fixedly connected with a perforated aluminum plate non-woven fabric, one side of one perforated aluminum plate non-woven fabric is connected with a perforated aluminum plate, and one side of the other perforated aluminum plate non-woven fabric is provided with a micro-perforated aluminum plate.

[0006] Further, the filter aluminum honeycomb groove is a regular hexagonal honeycomb hole with a side length of 8mm, a thickness of 0.08mm and a height of 18mm.

[0007] Further, the perforated aluminum plate non-woven fabric is 0.2mm thick.

[0008] Further, the perforated aluminum plate is internally provided with a through hole.

[0009] Further, the micro-perforated aluminum plate is internally provided with a micro-perforated groove.

[0010] Further, the micro-perforated aluminum plate 4 is 1mm thick, the micro-perforated groove is an isosceles right triangle hole, the hole oblique side is 0.4mm long, the hole center distance is 2.2mm, and the perforation rate is 0.65%.

[0011] The utility model has the advantages that:

[0012] (1), the utility model disc improve prior art, through the surface design, this structure can gather sound effectively in addition, noise is inhaled first through perforated aluminum plate and circulates and is accepted in aluminum honeycomb core material, then utilizes microperforated aluminum plate to further weaken the propagation and reflection of sound wave. This design significantly enhances the absorption capacity of the material to high-frequency noise, greatly improves the overall sound absorption effect.

[0013] (2), the aluminum plate adopts simple processing technology, greatly enhances the sound insulation and sound absorption effect, and its structure is not complicated, which is beneficial to large-scale production and application promotion. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed in the embodiments will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is a main structure schematic view of a curved surface ultramicro hole sound absorption honeycomb aluminum plate unit according to the utility model embodiment;

[0016] Figure 2 It is a front view of a curved surface ultramicro hole sound absorption honeycomb aluminum plate unit according to the utility model embodiment;

[0017] Figure 3 It is a structure schematic view of a perforated aluminum plate in a curved surface ultramicro hole sound absorption honeycomb aluminum plate unit according to the utility model embodiment;

[0018] Figure 4 It is a structure schematic view of a microperforated aluminum plate in a curved surface ultramicro hole sound absorption honeycomb aluminum plate unit according to the utility model embodiment.

[0019] In the drawings:

[0020] 1, aluminum honeycomb core material;101, filter aluminum honeycomb groove;2, perforated aluminum plate nonwoven fabric;3, perforated aluminum plate;4, microperforated aluminum plate;5, through hole;6, microperforated groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] According to the embodiment of the utility model, as shown in Figures 1-4 The utility model provides a kind of curved surface supermicro hole sound absorption honeycomb aluminum plate unit, including aluminum honeycomb core material 1, aluminum honeycomb core material 1 inside is equipped with filter aluminum honeycomb groove 101, aluminum honeycomb core material 1 both sides are fixedly connected with perforated aluminum plate nonwoven fabric 2, one of perforated aluminum plate nonwoven fabric 2 side is connected with perforated aluminum plate 3, another perforated aluminum plate nonwoven fabric 2 side is equipped with micro-perforated aluminum plate 4, perforated aluminum plate 3 inside is equipped with through hole 5, through hole 5 improves the sound absorption effect of material, micro-perforated aluminum plate 4 inside is equipped with micro-perforated groove 6, the overall shape of aluminum honeycomb core material 1, perforated aluminum plate nonwoven fabric 2, perforated aluminum plate 3, micro-perforated aluminum plate 4 is curved surface shape, it is favorable to the absorption of external sound.

[0023] The filter aluminum honeycomb groove 101 in the aluminum honeycomb core material 1 adopts a regular hexagon honeycomb hole structure, with a side length of 8 mm, a height of 18 mm and a thickness of 0.08 mm, to ensure the uniformity of the honeycomb core material in a two-dimensional plane and the balanced distribution of mechanical properties.

[0024] The perforated aluminum plate nonwoven fabric 2 has a thickness of 0.2 mm and is fixedly connected to the two sides of the aluminum honeycomb core material 1 by using a high-strength adhesive. The perforated aluminum plate nonwoven fabric 2 serves as a sound insulation layer to block the leakage of fine particles of the aluminum honeycomb core material 1 and protect the internal structure. At the same time, the perforated aluminum plate nonwoven fabric 2 cooperates with the perforated aluminum plate 3 and the micro-perforated aluminum plate 4 to enhance the overall sound absorption performance.

[0025] Referring to Figure 3 And 4 The micro-perforated aluminum plate 4 has a thickness of 1 mm, and the micro-perforated groove 6 adopts an isosceles right triangle hole design. Compared with the size of the through hole 5 of the perforated aluminum plate 3, the micro-perforated groove 6 has a smaller size and a higher density. The hole oblique side length is 0.4 mm, the hole center distance is 2.2 mm, and the perforation rate is 0.65%. This precise hole design not only improves the sound absorption effect of the material, but also enhances the sound insulation performance, ensuring good ventilation and aesthetics.

[0026] In order to facilitate the understanding of the above technical solutions of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0027] In summary, by means of the above technical solutions of the utility model, the structure can effectively gather sound through curved surface design. In addition, noise is first absorbed into the aluminum honeycomb core material 1 through the perforated aluminum plate 3 for circulation and absorption, and then the micro-perforated aluminum plate 4 is used to further weaken the propagation and reflection of sound waves. This design significantly enhances the material's ability to absorb high-frequency noise, greatly improving the overall sound absorption effect.

[0028] The aluminum plate adopts a simple and convenient processing technology, which greatly enhances the sound insulation and sound absorption effect without complicating the structure, facilitating large-scale production and application promotion.

[0029] The above merely preferred embodiments of the present application are not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A curved microporous sound-absorbing honeycomb aluminum panel unit, characterized in that, The material includes an aluminum honeycomb core (1), which has a filter aluminum honeycomb groove (101) inside. Perforated aluminum plate nonwoven fabric (2) is fixedly connected to both sides of the aluminum honeycomb core (1). One of the perforated aluminum plate nonwoven fabric (2) is connected to a perforated aluminum plate (3) on one side, and a micro-perforated aluminum plate (4) is installed on the other side of the perforated aluminum plate nonwoven fabric (2).

2. The curved microporous sound-absorbing honeycomb aluminum plate unit according to claim 1, characterized in that, The filter aluminum honeycomb groove (101) is a regular hexagonal honeycomb hole with a side length of 8mm, a thickness of 0.08mm, and a height of 18mm.

3. The curved microporous sound-absorbing honeycomb aluminum plate unit according to claim 2, characterized in that, The perforated aluminum plate nonwoven fabric (2) is 0.2 mm thick.

4. The curved microporous sound-absorbing honeycomb aluminum plate unit according to claim 3, characterized in that, The perforated aluminum plate (3) has a through hole (5) inside.

5. A curved microporous sound-absorbing honeycomb aluminum plate unit according to claim 4, characterized in that, The micro-perforated aluminum plate (4) has micro-perforated grooves (6) inside.

6. A curved microporous sound-absorbing honeycomb aluminum plate unit according to claim 5, characterized in that, The micro-perforated aluminum plate 4 has a thickness of 1 mm, and the micro-perforated groove (6) is an isosceles right-angled triangular hole with a hypotenuse length of 0.4 mm, a center distance of 2.2 mm, and a perforation rate of 0.65%.

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