Sound insulation foam board

By introducing components such as honeycomb panels, hollow columns, sound insulation cotton, and damping materials into the sound insulation foam board, the problem of poor high-frequency noise blocking effect in existing sound insulation foam boards has been solved, achieving more efficient noise control and material savings.

CN223922434UActive Publication Date: 2026-02-17DONGGUAN ZHAOYING BUILDING MATERIALS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520514479.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-17
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing sound insulation foam boards have a simple structure, poor blocking effect on mid-to-high frequency noise, and lack effective sound insulation components, making it difficult to cope with diverse noise environments.

Method used

It adopts a composite structure consisting of foam board body, protective structure, honeycomb board, hollow column, sound insulation cotton and damping material. The hollow column has a hexagonal variable cross section design and is filled with damping material. Combined with protective layer, waterproof layer and flame retardant layer, two sets of foam boards are connected by a connecting structure to enhance the sound insulation effect.

Benefits of technology

It improves the absorption capacity of mid-to-high frequency noise, enhances the overall strength and fire resistance of foamed boards, reduces noise transmission, and improves construction efficiency and material utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223922434U_ABST
    Figure CN223922434U_ABST
Patent Text Reader

Abstract

The utility model discloses a sound insulation foaming board, which relates to the technical field of foaming board devices and comprises a foaming board main body consisting of a first foaming board and a second foaming board. According to the sound insulation foam board, the two sets of foam board bodies are connected through the connecting structure, the connected combination board can cover a larger area, and therefore under the condition that the same use requirement is met, part of foam board materials can be saved, meanwhile, the foam board bodies are convenient to transport, and the sound insulation assemblies and the protection assemblies are arranged at the foam board bodies; the foam board can achieve a certain sound insulation effect while the use performance of the foam board is guaranteed, meanwhile, sound insulation cotton is installed in the hollow column, the hollow column is arranged to be in a variable cross-section shape, the reflection angle of sound can be continuously changed in the transmission process, the collision frequency of the sound and the column wall is increased, the sound energy loss efficiency is improved, and the sound insulation effect is improved. Sound transmission is further prevented, and the overall sound insulation capacity of the foam board is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of foam board devices, specifically to a sound-insulating foam board. Background Technology

[0002] In many fields such as construction, industrial noise reduction, and indoor acoustic environment optimization, sound insulation foam boards have become a crucial sound insulation material due to their lightweight and sound insulation properties. Sound insulation foam boards usually adopt a hollow column structure. The presence of hollow columns can not only increase the strength of the board, but also further improve the sound insulation performance.

[0003] Existing ordinary sound insulation foam boards have a simple internal structure, with most hollow columns having a conventional uniform cross-sectional shape. Sound is reflected at a single angle during propagation, resulting in a limited number of collisions with the column walls and low sound energy loss efficiency. Furthermore, some products are not equipped with effective sound insulation components or rely solely on the sound insulation material of the foam board itself, making it difficult to cope with diverse noise environments, especially with poor blocking effect on mid-to-high frequency noise. In response to the shortcomings of existing technologies, we propose a sound insulation foam board to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a sound-insulating foam board, comprising a foam board body, wherein the foam board body is composed of a first foam board and a second foam board, wherein a connecting structure is provided between the first foam board and the second foam board, and the first foam board and the second foam board are composed of the same components;

[0005] The first foam board and the second foam board are respectively composed of a foam board body and a protective structure. The protective structure is installed on the top of the foam board body and protects the foam board body. The foam board body has a sound insulation structure inside, which is composed of honeycomb panels, hollow columns, sound insulation cotton and damping materials.

[0006] Preferably, the honeycomb panel is fixedly installed inside the foam board body, and the honeycomb panel is composed of multiple sets of hollow columns, which are tightly connected.

[0007] Preferably, the hollow column is hexagonal and has a variable cross-section.

[0008] Preferably, the sound insulation cotton is fixedly installed inside the hollow column, and the damping material is filled between the foam board body and the hollow column.

[0009] Preferably, the protective structure includes a protective layer, a waterproof layer, and a flame-retardant layer, which are sequentially disposed on the top of the foam board body.

[0010] Preferably, the connection structure includes a positioning plate, a positioning protrusion, and a connecting frame. The positioning plate is fixedly installed on one outer wall of the first foam board and the second foam board, and the positioning protrusion and the connecting frame are respectively fixedly installed on the other outer wall of one outer wall of the first foam board and the second foam board.

[0011] Preferably, the positioning plate is arranged opposite to the positioning protrusion and the connecting frame, the positioning protrusion is slidably connected inside the positioning plate, and the connecting frame is slidably sleeved on the outer peripheral wall of the positioning plate.

[0012] This utility model discloses a sound-insulating foam board, which has the following beneficial effects: By connecting two sets of foam boards through a connecting structure, the combined board can cover a larger area, potentially saving some foam board material while meeting the same usage requirements. It also facilitates the transportation of the foam board. Sound insulation and protective components are installed at the foam board locations, ensuring its performance while providing a certain level of sound insulation. Furthermore, by installing sound-insulating cotton inside the hollow columns and setting the hollow columns to a variable cross-section shape, the reflection angle of sound continuously changes during propagation, increasing the number of collisions between sound and the column wall, improving sound energy loss efficiency, enhancing the sound insulation effect, further preventing sound propagation, and improving the overall sound insulation capability of the foam board. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of one side of the main body of the foamed board of this utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of the two sets of foamed boards of this utility model;

[0017] Figure 4 This is a schematic diagram of the explosion structure of the sound insulation cotton and honeycomb panel of this utility model;

[0018] Figure 5 This is an internal sectional view of the foamed board body of this utility model;

[0019] Figure 6 This utility model Figure 2 Enlarged view of section A in the middle.

[0020] In the diagram: 1. Foam board body; 2. First foam board; 201. Foam board body; 202. Protective structure; 2021. Protective layer; 2022. Waterproof layer; 2023. Flame retardant layer; 3. Second foam board; 4. Connecting structure; 401. Positioning plate; 402. Positioning protrusion; 403. Connecting frame; 5. Sound insulation structure; 501. Honeycomb panel; 502. Hollow column; 503. Sound insulation cotton; 504. Damping material. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] This utility model discloses a sound-insulating foam board.

[0024] According to the appendix Figure 1-6 As shown, the system includes a foam board body 1, which is composed of a first foam board 2 and a second foam board 3. A connecting structure 4 is provided between the first foam board 2 and the second foam board 3. The first foam board 2 and the second foam board 3 are composed of the same components. In use, the two sets of foam boards are connected sequentially through the connecting structure 4 to form the foam board body 1. Compared with installing individual small foam boards, connecting them into a larger combined board is more convenient during installation, reducing the number of splicing steps and workload, improving construction efficiency, and reducing installation errors that may occur due to multiple splicing steps. Connecting the two sets of foam boards through the connecting structure 4 can reduce the amount of material used to a certain extent, because compared with using multiple individual foam boards, the combined board can cover a larger area. Thus, while meeting the same usage requirements, it may save some foam board material, and it also facilitates the transportation of the foam boards.

[0025] The first foamed board 2 and the second foamed board 3 are respectively composed of a foamed board body 201 and a protective structure 202. The protective structure 202 is installed on the top of the foamed board body 201 and protects the foamed board body 201. A sound insulation structure 5 is provided inside the foamed board body 201. The sound insulation structure 5 is composed of a honeycomb panel 501, hollow columns 502, sound insulation cotton 503, and damping material 504. The damping material 504 is selected from butyl rubber and acrylic damping adhesive. The damping material 504 is evenly pasted and filled between the hollow columns 502 and the inner peripheral wall of the foamed board to ensure good adhesion between the damping material 504 and both, thus ensuring damping effect. The damping material 504 can convert mechanical energy into heat energy to improve the stability of the foam board. When the foam board is excited by sound waves and vibrates, the damping material 504 can suppress the propagation of vibration and reduce the sound radiation caused by vibration. The damping material 504 is set between the hexagonal hollow column 502 and the inner peripheral wall of the foam board, which can effectively reduce the vibration of the foam board and thus improve its sound insulation performance. When the foam board body 1 is in use, it can block the propagation of sound through the internal sound insulation structure 5, absorb and reflect sound waves, effectively reduce the transmission of noise, and significantly improve the sound insulation effect between indoor and outdoor spaces or different spaces, so that the foam board can be used in places with high sound insulation requirements.

[0026] The honeycomb panel 501 is fixedly installed inside the foam board body 201. The honeycomb panel 501 is composed of multiple sets of hollow columns 502, which are tightly connected. The hollow columns 502 are hexagonal and have a variable cross-section. By setting the hollow columns 502 as reinforcing ribs and splicing them together to form the honeycomb panel 501, not only is the sound insulation improved, but the foam board is also supported, increasing its overall strength. It should be noted that the hollow columns 502 have a variable cross-section, gradually thickening from the bottom to the top. See the attached diagram for details. Figure 5 With appendix Figure 4 This design allows the sound to continuously change its reflection angle during propagation, increasing the number of collisions between the sound and the column wall, improving sound energy loss efficiency, and enhancing sound insulation.

[0027] Sound insulation cotton 503 is fixedly installed inside the hollow column 502. Damping material 504 is filled between the foam board body 201 and the hollow column 502. The sound insulation cotton 503 is adhered to the inside of the hollow column 502, ensuring that the inside of the hollow column 502 is completely filled. When sound enters the hollow column 502 and comes into contact with the sound insulation cotton 503, the sound waves will be continuously reflected and refracted between these pores and fibers. In this process, sound energy is converted into heat energy and consumed. In particular, the absorption effect of mid-to-high frequency sound is significant, which can effectively reduce the reverberation time of indoor noise, reduce echoes, and improve the acoustic environment of the space. Afterwards, the sound is not only reflected by the hollow column 502 wall, but also partially absorbed by the sound insulation cotton 503, further blocking the sound transmission and improving the overall sound insulation capability of the foam board. The protective structure 202 includes a protective layer 2021, a waterproof layer 2022, and a flame-retardant layer 2023. The protective layer 2021, waterproof layer 2022, and flame-retardant layer 2023 are sequentially arranged on the top of the foam board body 201. The flame-retardant layer 2023 can be an inorganic fire-retardant coating, whose main component is inorganic minerals, which has good flame-retardant properties and can form a dense fireproof and heat-insulating layer at high temperatures, or a flame-retardant foam board can be used to give it a certain fireproof and heat-insulating effect. The self-extinguishing property of the foam board improves its fire resistance, reduces the burning speed and spread of fire during a fire, buys time for evacuation and fire rescue, and reduces losses caused by fire. The 2022 waterproof layer uses SBS modified bitumen waterproof membrane, which has good water resistance, flexibility, and aging resistance. Alternatively, waterproof coatings are also a good choice, such as polyurethane waterproof coatings, which can form a continuous, seamless waterproof membrane on the surface of the foam board, providing excellent waterproofing and adapting to a certain degree of substrate deformation, preventing moisture from penetrating into the foam board and avoiding a decrease in insulation, heat insulation, and strength due to water absorption. This design not only enhances performance but also prevents mold and rot caused by moisture accumulation, extending the service life of the foam board. The protective layer in 2021 uses aluminum sheet, which is lightweight, high-strength, corrosion-resistant, and easy to process, effectively protecting the foam board. Alternatively, fiber cement board can be used, which has good compressive and flexural strength, as well as certain fire and moisture-proof properties, providing reliable protection for the foam board. This protects the foam board from damage by external environmental factors, enhances its overall strength and stability, improves its impact resistance, and allows the foam board to better adapt to different usage environments.

[0028] The connecting structure 4 includes a positioning plate 401, a positioning protrusion 402, and a connecting frame 403. The positioning plate 401 is fixedly installed on one outer wall of the first foam board 2 and the second foam board 3. The positioning protrusion 402 and the connecting frame 403 are respectively fixedly installed on the other outer wall of one side of the first foam board 2 and the second foam board 3. When splicing the two sets of foam boards, first pick up the second foam board 3, align the positioning protrusion 402 on one side of the second foam board 3 with the bottom of the positioning plate 401 of the first foam board 2, and insert it inside. Then push the second foam board 3, causing the positioning protrusion 402 to slide and connect inside the positioning plate 401, thereby realizing the splicing of the two sets of foam boards.

[0029] The positioning plate 401 is positioned opposite to the positioning protrusion 402 and the connecting frame 403. The positioning protrusion 402 is slidably connected inside the positioning plate 401, and the connecting frame 403 is slidably sleeved on the outer peripheral wall of the positioning plate 401.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A soundproofing foamed panel comprising a foamed panel body (1) consisting of a first foamed panel (2) and a second foamed panel (3), characterized in that: The first foamed plate (2) and the second foamed plate (3) are provided with a connecting structure (4), and the first foamed plate (2) and the second foamed plate (3) have the same components; The first foamed plate (2) and the second foamed plate (3) are respectively composed of a foamed plate body (201) and a protection structure (202), the protection structure (202) is installed on the top of the foamed plate body (201), the protection structure (202) protects the foamed plate body (201), the inside of the foamed plate body (201) is provided with a sound insulation structure (5), and the sound insulation structure (5) is composed of a honeycomb plate (501), a hollow column (502), sound insulation cotton (503) and damping material (504).

2. A soundproofing foam panel according to claim 1, wherein: The honeycomb plate (501) is fixedly installed in the foamed plate body (201), the honeycomb plate (501) is composed of a plurality of hollow columns (502), and the plurality of hollow columns (502) are tightly connected.

3. A soundproofing foam panel according to claim 2, wherein: The hollow column (502) is hexagonal and has a variable cross-section shape.

4. A soundproofing foam panel according to claim 3, wherein: The sound insulation cotton (503) is fixedly installed in the hollow column (502), and the damping material (504) is filled between the foamed plate body (201) and the hollow column (502).

5. The soundproofing foam panel of claim 1, wherein: The protection structure (202) includes a protection layer (2021), a waterproof layer (2022) and a flame-retardant layer (2023), and the protection layer (2021), the waterproof layer (2022) and the flame-retardant layer (2023) are sequentially arranged on the top of the foamed plate body (201).

6. The soundproofing foam panel of claim 1, wherein: The connecting structure (4) includes a positioning plate (401), a positioning protrusion (402) and a connecting frame (403), the positioning plate (401) is fixedly installed on one side of the outer wall of the first foamed plate (2) and the second foamed plate (3), and the positioning protrusion (402) and the connecting frame (403) are fixedly installed on the other side of the outer wall of the first foamed plate (2) and the second foamed plate (3).

7. A soundproofing foam panel according to claim 6, wherein: The positioning plate (401) and the positioning protrusion (402) and the connecting frame (403) are oppositely arranged, the positioning protrusion (402) is slidably connected in the positioning plate (401), and the connecting frame (403) is slidably connected to the outer peripheral wall of the positioning plate (401).