Lightweight fire-resistant sound-insulating cabin wall panel and manufacturing method

Abstract

The present invention provides a lightweight fire-resistant soundproof cabin wall panel and a manufacturing method thereof, wherein the wall panel comprises an acoustic metasurface component, both sides of the acoustic metasurface component are sequentially provided with a fire-resistant sound-absorbing layer and a fire-resistant surface plate, the acoustic metasurface component comprises N frames and N+1 acoustic metasurface panels, N is an arbitrary positive integer, a frame is provided between any two adjacent acoustic metasurface panels, a cavity is formed between the acoustic metasurface panel and the frame, a frequency-modulated mass block is provided in the cavity, and the frequency-modulated mass block is connected to the acoustic metasurface panel; the present invention embeds the acoustic metasurface component inside the traditional "double-layer sound insulation + sound absorption" structure, thereby ensuring that the wall panel has good lightweight and fire-resistant performance, and can also effectively improve the sound insulation performance of the wall panel; at the same time, by respectively providing the acoustic metasurface panels on both sides of the frame, at least two sound insulation frequency bands are covered, thereby effectively widening the sound insulation range.

Description

Technical Field

[0001] The invention relates to the field of marine vibration reduction and noise reduction of ships, and in particular to a lightweight fire-resistant sound insulation cabin wall panel and a manufacturing method thereof. Background Art

[0002] There are many types of noise sources with strong radiation capacity distributed inside the ship, such as decks, hull plates, electromechanical equipment, etc. As the mechanical equipment in the field of shipbuilding and marine engineering develops towards high speed and automation, high-power machinery continues to increase, and the vibration and noise problems caused by it are becoming increasingly serious, seriously affecting the comfort and physical and mental health of crew members and passengers, especially on high-end residential ships represented by luxury cruise ships, where the noise control level of the cabin is the most direct factor in the passenger experience. At the same time, the International Maritime Organization has implemented the noise evaluation of ship cabin wall panels as a mandatory standard, and has increased the sound insulation level requirements for wall panels in some areas.

[0003] In addition, since ships are special enclosed spaces, once a fire breaks out and spreads, it will lead to serious consequences. Therefore, the fireproof requirements of ship cabin wall panels and other structures are relatively high. Moreover, with the development of the shipbuilding industry, there are also higher new requirements for the lightweight of ship components.

[0004] In the prior art, the sound insulation performance of the structure is directly subject to its surface density. The larger the surface density, the better the sound insulation effect. However, the increase in surface density will cause the cabin wall panel structure to be unable to meet the lightweight requirements. The requirements for fire resistance of the ship cabin wall panel structure determine that the range of material selection is limited to inorganic materials or composite materials with high fire resistance, and organic materials with light weight and good sound absorption / sound insulation effects cannot be selected.

[0005] The wall panels used in ships are often in the form of a "metal layer + fire-resistant cotton core material + metal layer" structure, which belongs to the conventional "double-layer sound insulation (i.e. double-layer metal layer) + sound-absorbing material" structure in terms of acoustics. Although this structure can meet certain requirements for light weight and fire resistance, its sound insulation is generally 30-33dB, which cannot meet the new requirements of the International Maritime Organization for ship noise (the maximum requirement is sound insulation of more than 45dB). For this reason, existing ship wall panels often find it difficult to simultaneously meet the three requirements of light weight (light weight), high fire resistance, and high sound insulation. Summary of the invention

[0006] In view of this, the present invention aims to provide a lightweight fire-resistant soundproof cabin wall panel and a manufacturing method to solve the problems of low lightweight and poor sound insulation effect of the wall panels used in ships in the prior art.

[0007] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] A lightweight fire-resistant soundproof cabin wall panel comprises an acoustic metasurface component, wherein a fire-resistant sound-absorbing layer and a fire-resistant surface plate are sequentially arranged on both sides of the acoustic metasurface component, wherein the acoustic metasurface component comprises N frames and N+1 acoustic metasurface panels, wherein N is an arbitrary positive integer, wherein a frame is arranged between any two adjacent acoustic metasurface panels, wherein a cavity is formed between the acoustic metasurface panel and the frame, wherein a frequency-modulated mass block is arranged in the cavity, and wherein the frequency-modulated mass block is connected to the acoustic metasurface panel.

[0009] Furthermore, the frame is a grid-like structure having a plurality of grid holes; for any grid hole, both ends of the grid hole are connected to the acoustic metasurface plate to form a cavity.

[0010] Furthermore, a frequency-modulated mass block is arranged on one side of the acoustic metasurface plate close to the cavity, one side of the frequency-modulated mass block is connected to the acoustic metasurface plate, and the other side extends into the cavity.

[0011] Furthermore, a first damping layer is arranged between the fire-resistant surface plate and the fire-resistant sound-absorbing layer, and / or a second damping layer is arranged between the fire-resistant sound-absorbing layer and the acoustic super surface plate.

[0012] Furthermore, the frequency-modulated mass block is connected to the acoustic metasurface plate by bonding or welding, or the frequency-modulated mass block and the acoustic metasurface plate are prefabricated into an integrated structure by molding.

[0013] Furthermore, the thickness of the acoustic metasurface plate is 0.02 mm to 4 mm.

[0014] Furthermore, the frame is connected to the acoustic metasurface plate by bonding or welding, or the frame and the acoustic metasurface plate are prefabricated as an integrated structure by molding, or the frame, the acoustic metasurface plate and the frequency-modulated mass block are prefabricated as an integrated structure by molding.

[0015] Furthermore, the cavity is filled with aerogel or sound-absorbing material, and the sound-absorbing material includes at least one of rock wool, ceramic fiber wool / felt, ultrafine glass wool / felt, aerogel felt, vermiculite, polyurethane foam, phenolic foam, perlite particles / blocks, foamed ceramics, and foamed glass.

[0016] Furthermore, the fire-resistant surface plate and the fire-resistant sound-absorbing layer are connected as a whole by hot-pressing bonding or cold-bonding, and the fire-resistant sound-absorbing layer and the acoustic super surface plate are connected as a whole by hot-pressing bonding or cold-bonding.

[0017] A method for manufacturing a lightweight fire-resistant soundproof cabin wall panel, which is used to produce the lightweight fire-resistant soundproof cabin wall panel; the manufacturing method comprises: S1, coating an adhesive on one side of a frequency-modulated mass block, and bonding the frequency-modulated mass block to the surface of an acoustic metasurface panel; S2, coating an adhesive on one side of a frame, and bonding the frame to the acoustic metasurface panel bonded with the frequency-modulated mass block; S3, filling aerogel powder in each grille hole of the frame; S4, coating an adhesive on the other side of the frame, and bonding the frame to another acoustic metasurface panel bonded with the frequency-modulated mass block; S5, coating a fire-resistant structural adhesive on one side of a fire-resistant surface panel, and bonding the fire-resistant surface panel to a fire-resistant sound-absorbing layer; S6, coating a fire-resistant structural adhesive on the side of the fire-resistant sound-absorbing layer away from the fire-resistant surface panel, and bonding the fire-resistant sound-absorbing layer to the side of the acoustic metasurface panel away from the frame.

[0018] Compared with the prior art, the lightweight fire-resistant and sound-insulating cabin wall panel and manufacturing method described in the present invention have the following advantages:

[0019] The lightweight fire-resistant and soundproof cabin wall panel and the manufacturing method described in the present invention embed an acoustic metasurface component inside the traditional "double-layer sound insulation (i.e., double-layer metal layer) + sound absorption" structure, thereby ensuring that the wall panel has good lightness and fire resistance and effectively improving the sound insulation performance of the wall panel; at the same time, by arranging acoustic metasurface panels on both sides of the frame to form an acoustic metasurface component, it is possible to form coverage of at least two sound insulation frequency bands, which can effectively widen the sound insulation range.

[0020] The present application can adjust the number of frames according to actual application requirements, that is, the frame can be 1 layer, 2 layers, 3 layers or multiple layers, and correspondingly, the acoustic metasurface plate is also increased to 2 layers, 3 layers, 4 layers or multiple layers, so as to cover more sound insulation frequency bands according to actual application requirements.

[0021] The present application can also adjust the thickness of each acoustic metasurface plate separately, adjust the structure and size of each frame separately, and adjust the size, mass, and shape of each frequency-modulated mass block separately, so as to adjust the sound insulation frequency band of the wall panel and cover different sound insulation frequency bands to achieve the effect of widening the sound insulation frequency band, and provide a sound insulation effect that meets the application requirements according to the actual application environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic structural diagram of a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0024] Figure 2 This is a structural diagram of a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0025] Figure 3 Another structural diagram of a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0026] Figure 4 Another structural schematic diagram of a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic structural diagram of a frame in a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0028] Figure 6 A top view of a frame in a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0029] Figure 7 A top view of another frame in a lightweight fire-resistant and sound-insulating cabin wall panel according to an embodiment of the present invention;

[0030] Figure 8 For the embodiment of the present invention Figure 5 Schematic diagram of the assembly structure of the acoustic metasurface plate, frame, and frequency-tuned mass block based on the middle frame;

[0031] Fig. 9 For the embodiment of the present invention Figure 5 Schematic diagram of acoustic metasurface plate, frame, and FM mass block based on the middle frame;

[0032] Fig.10 For the embodiment of the present invention Figure 5 Another schematic diagram of the acoustic metasurface panel, frame, and FM mass block based on the middle frame.

[0033] Description of reference numerals:

[0034] 1. Fire-resistant surface board; 2. Fire-resistant sound-absorbing layer; 3. Acoustic super surface board; 4. Frame; 41. Grille hole; 5. Cavity; 6. FM mass block; 7. First damping layer; 8. Second damping layer. DETAILED DESCRIPTION

[0035] The inventive concepts of the present disclosure will be described below using terms commonly used by those skilled in the art to convey the essence of their work to other persons skilled in the art. However, these inventive concepts can be embodied in many different forms and should not be considered limited to the embodiments described herein.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] In the prior art, the sound insulation performance of the structure is directly subject to its surface density. The larger the surface density, the better the sound insulation effect. However, the increase in surface density will cause the cabin wall structure to fail to meet the requirements of lightweight. The requirements for fire resistance of the ship cabin wall structure determine that the range of material selection is limited to inorganic materials or composite materials with high fire resistance, and organic materials with light weight and good sound absorption / sound insulation effect cannot be selected. Existing ship wall panels are often in the form of "metal layer + fire-resistant cotton core material + metal layer", which belongs to the conventional "double-layer sound insulation (i.e. double-layer metal layer) + sound absorbing material" structure in acoustics. Although this structural form can meet certain lightweight and fire resistance requirements, its sound insulation is generally 30-33dB, which cannot meet the new requirements of the International Maritime Organization for ship noise (the maximum requirement is sound insulation of more than 45dB). For this reason, existing ship wall panels are often difficult to meet the three requirements of lightweight (lightweight), high fire resistance and high sound insulation at the same time.

[0039] In order to solve the problems of low lightness and poor sound insulation of the wall panels used in ships in the prior art, this embodiment proposes a lightweight fire-resistant sound insulation cabin wall panel, as shown in the attached Figure 1-10 As shown, the wall panel includes an acoustic metasurface component, and a fire-resistant sound-absorbing layer 2 and a fire-resistant surface plate 1 are sequentially arranged on both sides of the acoustic metasurface component. The acoustic metasurface component includes N frames 4 and N+1 acoustic metasurface panels 3, N is an arbitrary positive integer, and the frame 4 is a grid-like structure. A frame 4 is arranged between any two adjacent acoustic metasurface panels 3, and a cavity 5 is formed between the acoustic metasurface panel 3 and the frame 4. A frequency-modulated mass block 6 is arranged in the cavity 5, and the frequency-modulated mass block 6 is connected to the acoustic metasurface panel 3.

[0040] Since the frame 4 is in a grid shape, multiple cavities 5 can be enclosed between the frame 4 and the acoustic metasurface plates 3 on both sides thereof. For any cavity 5, a frequency-modulated mass block 6 is arranged on one side of the acoustic metasurface plate 3 close to the cavity 5, and one side of the frequency-modulated mass block 6 is connected to the acoustic metasurface plate 3, and the other side extends into the cavity 5.

[0041] For the acoustic metasurface plate 3, it has an acoustic metasurface, which is an ultra-thin planar structure composed of artificial micro-units, and uses the local anti-resonance effect of the thin film structure in a specific frequency band to improve the sound insulation ability. It has physical properties such as plane and ultra-thin, and can directly adopt the conventional acoustic metasurface structure in the prior art, or it can be processed and produced according to the conventional design and manufacturing methods of the acoustic metasurface structure in the prior art, which will not be described in detail. Among them, the frame 4 can also be set as an acoustic metasurface to form an acoustic metasurface frame, so that the frame 4 and the acoustic metasurface plate 3 are combined to form an acoustic metasurface structure.

[0042] Therefore, the present application embeds an acoustic metasurface component inside the traditional "double-layer sound insulation (i.e., double-layer metal layer) + sound absorption" structure, thereby ensuring that the wall panel has good lightness and fire resistance, and can also effectively improve the sound insulation performance of the wall panel; at the same time, by arranging acoustic metasurface panels 3 on both sides of the frame 4, an acoustic metasurface component is formed, which can form coverage of at least two sound insulation frequency bands and effectively widen the sound insulation range.

[0043] For the acoustic metasurface component, the number of frames 4 can be adjusted, that is, the frames can be 1 layer, 2 layers, 3 layers or multiple layers, and correspondingly, the acoustic metasurface panel 3 is also increased to 2 layers. 3 layers, 4 layers or more layers, the acoustic metasurface component is constructed by arranging the acoustic metasurface panel 3 and the frames 4 layer by layer, so that the two side panels of the acoustic metasurface component are both acoustic metasurface panels 3, and a frame 4 is arranged between any two adjacent layers of acoustic metasurface panels 3 in the acoustic metasurface component; thereby, more sound insulation frequency bands can be covered according to actual application requirements. For example: in the attached Figure 1 In the embodiment, there is one frame 4, there are two acoustic metasurface panels 3, and the frame 4 is arranged between the two acoustic metasurface panels 3; Figure 4 In the embodiment, three frames 4 and four acoustic metasurface panels 3 are provided. The acoustic metasurface panels 3 and frames 4 are stacked layer by layer in sequence, and a frame 4 is provided between any two adjacent layers of acoustic metasurface panels 3. Of course, based on the arrangement of the acoustic metasurface assembly, the present application is not limited to the attached Figure 1 , Attachment Figure 4 The number of components in can also be 2 layers of frames 4 corresponding to 3 layers of acoustic metasurface panels 3, or N layers of frames 4 corresponding to N+1 layers of acoustic metasurface panels 3, where N is any positive integer.

[0044] The present application can also adjust the thickness of each acoustic metasurface plate 3, the structure and size of each frame 4, and the size, mass, and shape of each frequency-modulated mass block 6, so as to adjust the sound insulation frequency band of the wall panel and cover different sound insulation frequency bands to achieve the effect of widening the sound insulation frequency band, and provide a sound insulation effect that meets the application requirements according to the actual application environment.

[0045] In addition, with regard to the setting of the frequency-modulated mass block 6, if only one side of the acoustic metasurface plate 3 constitutes a cavity 5, the frequency-modulated mass block 6 is set in the cavity 5; if both sides of the acoustic metasurface plate 3 constitute a cavity 5, the frequency-modulated mass block 6 can be set in any one of the cavities 5 on both sides of the acoustic metasurface plate 3, or the frequency-modulated mass blocks 6 can be set in the cavities 5 on both sides of the acoustic metasurface plate 3.

[0046] Although the acoustic metasurface can play a certain role in sound insulation, in order to reduce the modulus of the film material and obtain a low-frequency sound insulation effect, the existing acoustic metasurface sound insulation components almost all use organic elastic materials such as silicone as the core material of the metasurface. These materials obviously cannot meet the requirements of the ship cabin wall panels for fire resistance (generally requiring a temperature resistance of at least 700°C). Moreover, the acoustic metasurface structure can generally only produce a good sound insulation effect for a single frequency band, and the sound insulation band is relatively narrow, making it difficult to effectively isolate broadband air noise. For this reason, the present application sets a frequency modulation mass block 6 on the acoustic metasurface panel 3 to adjust the super sound insulation frequency. According to actual application requirements, frequency modulation mass blocks of different weights can be used to achieve the effect of adjusting the super surface sound insulation frequency band, so that the acoustic metasurface panel 3 and the wall panels have different sound insulation effects. For example, using a lighter frequency-tuned mass block can make the acoustic metasurface panel 3 have a high sound insulation capability at 100 to 600 Hz, while using a larger and heavier frequency-tuned mass block can make the acoustic metasurface panel 3 have a higher sound insulation capability at 600 to 1000 Hz.

[0047] In addition, for the two acoustic metasurface plates 3 on both sides of any layer of frame 4, the thickness of the plate body can be the same or different. When the thickness of the two plates is different, different high-performance sound insulation frequency bands can be formed; preferably, the thickness of the acoustic metasurface plate 3 is 0.02mm to 4mm. The acoustic metasurface plate 3 is iron sheet, thin steel plate, stainless steel plate, high-temperature resistant composite material plate, aluminum alloy plate or other material plate, thereby avoiding the use of traditional low modulus organic materials (such as silica gel) as acoustic metasurface materials, and improving the fire resistance and high temperature resistance of the acoustic metasurface plate 3.

[0048] The material of the frequency modulation mass block 6 can be metal materials such as iron, steel, aluminum, etc., or can be composite materials, plastic, nylon, etc., or any other material that has a certain rigidity and can provide a certain weight.

[0049] For the two acoustic metasurface panels 3 on both sides of any frame 4, both may be provided with a frequency-modulated mass block 6, or both may not be provided with a frequency-modulated mass block 6, or one acoustic metasurface panel 3 may be provided with a frequency-modulated mass block 6, and the other may not be provided with a frequency-modulated mass block 6. Preferably, both acoustic metasurface panels 3 are provided with a frequency-modulated mass block 6, and the size, weight, and shape of the frequency-modulated mass blocks 6 are inconsistent, so that the two acoustic metasurface panels 3 have high sound insulation performance in different frequency bands, which is conducive to widening the frequency band range of high sound insulation performance.

[0050] For the frequency modulation mass block 6, please refer to the attached Figure 8-10 The frequency modulation mass block 6 can be circular, rectangular, polygonal, annular, etc. The size and location of the frequency modulation mass block 6 can be determined by calculation or experiment. The frequency modulation mass block 6 can be manufactured by cutting, casting, molding, injection molding, etc. The frequency modulation mass block 6 is connected to the acoustic metasurface plate 3 as a whole by bonding, welding, etc., and can also be prefabricated as an integrated structure with the acoustic metasurface plate 3 by molding, etc.

[0051] The frame 4 is made of iron, steel, aluminum alloy, composite material, etc. The frame 4 is a grid-like structure with a certain topological structure and a plurality of grid holes 41. On the basis of the structure that the acoustic metasurface plates 3 are arranged on both sides of the frame 4, for any grid hole 41, the acoustic metasurface plates 3 block both ends of the grid hole 41, thereby enclosing a cavity 5.

[0052] Reference Figure 5-7 As shown, the shape of the grille holes 41 can be square, rectangular, circular, triangular, hexagonal or other special-shaped holes, and the size and shape of any two grille holes 41 can be the same or different. Figure 6 ), the acoustic metasurface structure formed by the frame 4 and the acoustic metasurface panel 3 can form different high sound insulation frequency bands, which is beneficial to improving the sound insulation performance of the wall panel.

[0053] The frame 4 and the acoustic metasurface plate 3 are connected as a whole by bonding, welding or the like, or the frame 4 and the acoustic metasurface plate 3 can be prefabricated as an integrated structure by molding or the like, or the frame 4, the acoustic metasurface plate 3, and the frequency-modulated mass block 6 can be prefabricated as an integrated structure by molding or the like.

[0054] As for the cavity 5, it is the cavity space enclosed by the frame 4, the acoustic metasurface plate 3, and the frequency modulation mass block 6 on the basis of assembly, which can remain hollow, that is, filled with air. In order to further improve the sound insulation and fire resistance of the wallboard, the present application preferably fills the cavity 5 with aerogel and sound-absorbing materials, and the aerogel can be aerogel particles or aerogel powder, which has excellent sound absorption and heat resistance; the sound-absorbing material includes at least one of rock wool, ceramic fiber wool / felt, ultra-fine glass wool / felt, aerogel felt, vermiculite, polyurethane foam, phenolic foam, perlite particles / blocks, foamed ceramics, foamed glass and the like.

[0055] The fire-resistant surface plate 1 is made of iron sheet, thin steel plate, high temperature resistant composite material plate, etc., and its surface density is 1-8 kg / m 2 , which can enhance the isolation effect of high-frequency noise and fully ensure the fire-resistant and lightweight performance of the wallboard. At the same time. When the fire-resistant surface plate 1 is a high-temperature resistant composite material, the high-temperature resistant composite material includes 100 parts (mass parts, the same below) of phenolic resin, 10 to 30 parts of porcelain filler, 15 to 60 parts of magnetizable material, 3 to 10 parts of curing agent, 3 to 10 parts of promoter, and 150 to 450 parts of fiber reinforcement material; the high-temperature resistant composite material is prepared by hot pressing process, and the fire-resistant temperature reaches 600 to 1000 ° C.

[0056] The fire-resistant sound-absorbing layer 2 includes at least one of rock wool, ceramic fiber wool / felt, aerogel felt, ultra-fine glass wool, etc., which not only has high heat resistance and high heat insulation performance, but also has good sound absorption performance. In other words, the corresponding material is filled between the fire-resistant surface plate 1 and the acoustic super surface plate 3 to form the fire-resistant sound-absorbing layer 2.

[0057] The fire-resistant surface plate 1 and the fire-resistant sound-absorbing layer 2 are connected as a whole by hot pressing bonding or cold bonding. The fire-resistant sound-absorbing layer 2 and the acoustic super surface plate 3 are connected as a whole by hot pressing bonding or cold bonding. Specifically, "between the fire-resistant sound-absorbing layer 2 and the acoustic super surface plate 3" refers to between the fire-resistant sound-absorbing layer 2 and the acoustic super surface plate 3 adjacent to the fire-resistant sound-absorbing layer 2. This is the case in this application and will not be repeated.

[0058] In order to further improve the sound insulation performance of the wallboard, a first damping layer 7 is arranged between the fire-resistant surface board 1 and the fire-resistant sound-absorbing layer 2, and / or a second damping layer 8 is arranged between the fire-resistant sound-absorbing layer 2 and the acoustic super surface board 3; preferably, the first damping layer 7 and the second damping layer 8 are damping materials or coatings, the first damping layer 7 is connected to the side of the fire-resistant surface board 1 facing the fire-resistant sound-absorbing layer 2 by bonding or coating, and the second damping layer 8 is connected to the side of the acoustic super surface board 3 facing the fire-resistant sound-absorbing layer 2 by bonding or coating. Among them, the first damping layer 7 is an inorganic damping material to ensure good fire resistance near the surface of the wallboard, and the acoustic super surface board 3 is located near the inner layer of the wallboard, and the temperature it withstands is relatively low. The second damping layer 8 can use either inorganic damping material or organic damping material.

[0059] Based on the lightweight fire-resistant and sound-insulating cabin wall panel, the present application proposes a method for manufacturing the lightweight fire-resistant and sound-insulating cabin wall panel, comprising the following steps:

[0060] S1, cutting and processing the iron block into a frequency modulation mass block 6, cutting and processing the iron sheet into a fire-resistant surface plate 1, cutting the aluminum alloy rod into aluminum alloy rod segments, welding the aluminum alloy rod segments into a square frame 4, cutting the stainless steel plate into an acoustic super surface plate 3, and cutting the rock wool as a fire-resistant sound-absorbing layer 2;

[0061] Among them, refer to the attached Figure 5 The frame 4 in step S1 is square and has a grid-like structure, which is obtained by welding rod segments. In addition, step S1 can be regarded as a prefabrication process of each component, or the corresponding structural parts can be directly customized from other companies, so that step S1 can be skipped and the manufacturing of the lightweight fire-resistant and sound-insulating cabin wall panel can be started directly from step S2.

[0062] S2, marking the surface of the acoustic metasurface plate 3, applying adhesive on one side of the frequency-modulated mass block 6, and bonding the frequency-modulated mass block 6 to the marked area on the surface of the acoustic metasurface plate 3, and waiting for the adhesive to solidify;

[0063] In step S2, two acoustic metasurface plates 3 bonded with frequency-modulated mass blocks 6 need to be manufactured to facilitate subsequent processing and production processes.

[0064] S3, applying adhesive on one side of the frame 4, and bonding the frame 4 to the acoustic metasurface plate 3 bonded with the frequency-modulated mass block 6, and waiting for the adhesive to solidify;

[0065] S4, filling aerogel powder in each grid hole 41 of the frame 4;

[0066] S5, applying adhesive on the other side of the frame 4, and bonding the frame 4 to another acoustic metasurface plate 3 bonded with the frequency-modulated mass block 6, and waiting for the adhesive to solidify;

[0067] S6, coating a fire-resistant structural adhesive on one side of the fire-resistant surface plate 1, and bonding the fire-resistant surface plate 1 to the fire-resistant sound-absorbing layer 2;

[0068] S7 . In step S6 , a fire-resistant structural adhesive is applied to the side of the fire-resistant sound-absorbing layer 2 away from the fire-resistant surface plate 1 , and the fire-resistant sound-absorbing layer 2 is bonded to the side of the acoustic super-surface plate 3 away from the frame 4 .

[0069] If the wall panel has only one layer of frame 4, the acoustic metasurface assembly can be obtained by executing steps S1-S5; if multiple layers of frame 4 are required in the wall panel, after executing steps S1-S5, refer to the related bonding operations of steps S1-S5, and continue to bond the frame 4 and the acoustic metasurface plate 3 in sequence on the surface to be bonded of the acoustic metasurface plate 3 (i.e., the side of the acoustic metasurface plate 3 that has not been bonded), and ensure that aerogel powder is filled in each grid hole 41 of the frame 4, until the number of layers of the frame 4 and the acoustic metasurface plate 3 meets the requirements, and the acoustic metasurface assembly under the multi-layer frame 4 structure is obtained. After the acoustic metasurface assembly is obtained, continue to execute steps S6 and S7.

[0070] In addition, according to the operation of steps S6 and S7, the fire-resistant surface board 1 and the fire-resistant sound-absorbing layer 2 on the other side of the wallboard are bonded. Since the operation is completely the same, it is not repeated. In steps S2, S3, and S5, the adhesive is epoxy structural adhesive; similarly, the fire-resistant structural adhesive can also be epoxy structural adhesive.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight fire-resistant and sound-insulating cabin wall panel, characterized in that: The wall panel comprises an acoustic metasurface component, and a fire-resistant sound-absorbing layer (2) and a fire-resistant surface plate (1) are sequentially arranged on both sides of the acoustic metasurface component. The acoustic metasurface component comprises N frames (4) and N+1 acoustic metasurface panels (3), wherein N is an arbitrary positive integer, and a frame (4) is arranged between any two adjacent acoustic metasurface panels (3). The frame (4) is a grid-like structure having a plurality of grid holes (41). A plurality of cavities (5) are formed between the acoustic metasurface panels (3) and the frames (4), and a frequency-modulated mass block (6) is arranged in the cavity (5), and the frequency-modulated mass block (6) is connected to the acoustic metasurface panel (3). The acoustic metasurface plate (3) has an acoustic metasurface, which is an ultra-thin planar structure composed of artificial micro-units.

2. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: For any grille hole (41), both ends of the grille hole (41) are connected to the acoustic metasurface plate (3) to form a cavity (5).

3. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: A frequency-modulated mass block (6) is arranged on one side of the acoustic metasurface plate (3) close to the cavity (5); one side of the frequency-modulated mass block (6) is connected to the acoustic metasurface plate (3), and the other side extends into the cavity (5).

4. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: A first damping layer (7) is arranged between the fire-resistant surface plate (1) and the fire-resistant sound-absorbing layer (2), and / or a second damping layer (8) is arranged between the fire-resistant sound-absorbing layer (2) and the acoustic super surface plate (3).

5. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: The frequency-modulated mass block (6) is connected to the acoustic metasurface plate (3) by bonding or welding, or the frequency-modulated mass block (6) and the acoustic metasurface plate (3) are prefabricated into an integrated structure by molding.

6. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: The thickness of the acoustic metasurface plate (3) is 0.02 mm to 4 mm.

7. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: The frame (4) is connected to the acoustic metasurface plate (3) by bonding or welding, or the frame (4) and the acoustic metasurface plate (3) are prefabricated into an integrated structure by molding, or the frame (4), the acoustic metasurface plate (3) and the frequency-modulated mass block (6) are prefabricated into an integrated structure by molding.

8. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: The cavity (5) is filled with air or aerogel or sound-absorbing material, wherein the sound-absorbing material comprises at least one of rock wool, ceramic fiber wool / felt, ultrafine glass wool / felt, aerogel felt, vermiculite, polyurethane foam, phenolic foam, perlite particles / blocks, foamed ceramics, and foamed glass.

9. A lightweight fire-resistant and sound-insulating cabin wall panel according to claim 1, characterized in that: The fire-resistant surface plate (1) and the fire-resistant sound-absorbing layer (2) are connected as a whole by hot-pressing bonding or cold-bonding, and the fire-resistant sound-absorbing layer (2) and the acoustic super-surface plate (3) are connected as a whole by hot-pressing bonding or cold-bonding.

10. A method for manufacturing a lightweight fire-resistant and sound-insulating cabin wall panel, characterized in that: The manufacturing method is used to produce the lightweight fire-resistant and sound-insulating cabin wall panel according to any one of claims 1 to 9; the manufacturing method comprises: S1, coating an adhesive on one side of the frequency modulation mass block (6), and bonding the frequency modulation mass block (6) to the surface of the acoustic metasurface plate (3); S2, applying adhesive on one side of the frame (4), and bonding the frame (4) to the acoustic metasurface plate (3) bonded with the frequency-modulated mass block (6); S3, filling aerogel powder into each grid hole (41) of the frame (4); S4, applying adhesive on the other side of the frame (4), and bonding the frame (4) to another acoustic metasurface plate (3) bonded with a frequency-modulated mass block (6); S5, coating a fire-resistant structural adhesive on one side of the fire-resistant surface plate (1), and bonding the fire-resistant surface plate (1) to the fire-resistant sound-absorbing layer (2); S6. Coat a fire-resistant structural adhesive on the side of the fire-resistant sound-absorbing layer (2) away from the fire-resistant surface plate (1), and bond the fire-resistant sound-absorbing layer (2) to the side of the acoustic super surface plate (3) away from the frame (4).

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