EPP damping protection plate with good sound insulation effect

By designing sandwich panels, sound insulation channels, and corrugated structures within the EPP protective panel, combined with the foam structure of the EPP material, the problem of poor sound insulation performance of existing EPP protective panels has been solved, achieving improved sound insulation and noise reduction performance without increasing thickness.

CN223648401UActive Publication Date: 2025-12-09NANJING HAISHIDA PRECISION PACKING CO LTD
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Patent Information

Application Number
CN202520179519.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-12-09
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

The existing EPP protective panels have limited sound insulation performance, and the thickness needs to be increased to improve the noise reduction effect, but this would exceed the assembly requirements.

Method used

An EPP shock-absorbing shield was designed, comprising a shield section, a pad section, a sound insulation channel, and a clamping plate. By setting a clamping layer and a sound insulation channel inside the shield section, a continuous wave-like structure is formed by straight and curved plates, and convex and concave plates are set on the pad section. Combined with the foam structure of EPP material, multiple sound waves are absorbed and collided.

Benefits of technology

It achieves a significant improvement in sound insulation without increasing thickness, reducing noise transmission through multiple sound wave collisions and absorptions, reducing the number of repairs required, and enhancing noise reduction performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an EPP shock absorption guard board with good sound insulation effect, which comprises a guard board section and base board sections, the base board sections are respectively arranged on two sides of the guard board section, an interlayer is arranged in the guard board section, sound insulation channels and clamping boards are arranged in the interlayer, the sound insulation channels and the clamping boards are arranged alternately, each sound insulation channel comprises a straight board and a bent board, and the straight boards and the bent boards are arranged in parallel. Relates to the technical field of EPP protective plates. Due to the fact that the convex plates and the concave plates are arranged alternately, the cutting grooves are formed in one sides of the convex plates, and the concave plates are embedded in the cutting grooves, the base plate section can be cut through the tightly-arranged cutting grooves in the cutting process, the whole cut plate is close to the required length, the follow-up finishing frequency is reduced, and the cutting efficiency is improved. And the plurality of groups of straight plates and bent plates are fixedly connected to form a continuous wavy structure, so that after a part of sound waves are absorbed by the guard plate section, the sound waves with weakened residual energy can be collided and absorbed for multiple times in the straight plates and the bent plates, and a good noise reduction effect is realized.
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Description

Technical Field

[0001] This utility model relates to the field of EPP protective plate technology, specifically an EPP shock-absorbing protective plate with good sound insulation effect. Background Technology

[0002] EPP panels are protective panels made of expanded polypropylene (EPP) material. EPP has an extremely low thermal conductivity, making it a highly efficient thermal insulation material that significantly reduces heat transfer, suitable for various applications requiring thermal insulation.

[0003] Although existing EPP protective plates have fine pores on their surface for noise absorption, they can only absorb noise in a single layer at a time. To enhance the noise reduction effect, the thickness of the EPP protective plate needs to be increased, which would exceed the assembly requirements, leaving room for improvement. Utility Model Content

[0004] The purpose of this invention is to provide an EPP shock-absorbing protective plate with good sound insulation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an EPP shock-absorbing protective plate with good sound insulation effect, comprising a protective plate segment and a pad segment, wherein the pad segment is disposed on both sides of the protective plate segment, and a sandwich layer is provided inside the protective plate segment, wherein a sound insulation channel and a clamping plate are provided inside the sandwich layer, and the sound insulation channel and the clamping plate are arranged alternately.

[0006] As a further solution of this utility model: an EPP shock-absorbing protective plate with good sound insulation effect, wherein the sound insulation channel includes straight plates and curved plates, and several groups of straight plates and curved plates are fixedly connected to form a continuous wave-shaped structure.

[0007] As a further embodiment of this utility model: an EPP shock-absorbing protective plate with good sound insulation effect, wherein the pad section includes a convex plate and a concave plate, and the convex plate and the concave plate are arranged alternately.

[0008] As a further improvement of this utility model: an EPP shock-absorbing protective plate with good sound insulation effect, wherein a cutting groove is provided on one side of the convex plate and the concave plate is embedded in the cutting groove.

[0009] As a further improvement of this utility model: an EPP shock-absorbing protective plate with good sound insulation effect, wherein the protective plate section, pad section, sound insulation channel and clamping plate are all made of EPP material.

[0010] As a further improvement of this utility model: an EPP shock-absorbing protective plate with good sound insulation effect, wherein the protective plate section, pad plate section, sound insulation channel and clamping plate are all provided with fine structural holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Because the convex and concave plates are arranged alternately, and a cutting groove is opened on one side of the convex plate and the concave plate is embedded in the cutting groove, the pad plate section can be cut through the closely arranged cutting grooves during the cutting process, so that the length of the cut plate is close to the required length as a whole, reducing the number of subsequent trimmings.

[0013] 2. Since several sets of straight and curved plates are fixedly connected and form a continuous wave-like structure, after the sound waves are partially absorbed by the protective plate section, the remaining weakened sound waves will collide and be absorbed multiple times in the straight and curved plates, achieving a good noise reduction effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an EPP shock-absorbing protective plate with good sound insulation effect according to this utility model;

[0015] Figure 2 This is a schematic diagram of the sound insulation channel in an EPP shock-absorbing protective plate with good sound insulation effect according to this utility model;

[0016] Figure 3 This is a schematic diagram of the pad section in an EPP shock-absorbing protective plate with good sound insulation effect according to this utility model;

[0017] Figure 4 This is a schematic diagram of the sound wave path in an EPP shock-absorbing protective plate with good sound insulation effect according to this utility model.

[0018] In the diagram: 1. Protective plate section; 2. Pad plate section; 21. Convex plate; 22. Concave plate; 23. Cutting groove; 3. Sound insulation channel; 31. Straight plate; 32. Curved plate; 4. Clamping plate; 5. Interlayer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0021] In this embodiment of the utility model, please refer to Figure 1 and Figure 3 An EPP vibration damping guard plate with good sound insulation effect includes a guard plate section 1 and a pad plate section 2. The pad plate section 2 is placed on both sides of the guard plate section 1. The pad plate section 2 includes a convex plate 21 and a concave plate 22, which are arranged alternately. A cutting groove 23 is opened on one side of the convex plate 21, and the concave plate 22 is embedded in the cutting groove 23. Therefore, during the cutting process, the pad plate section 2 can be cut by the closely arranged cutting groove 23 so that the length of the cut plate is close to the required length, reducing the number of subsequent trimmings.

[0022] Other embodiments of this utility model: Please refer to Figure 1 , Figure 2 and Figure 4 The protective plate section 1 has an internal interlayer 5, and the internal interlayer 5 is provided with a sound insulation channel 3 and a clamping plate 4. The sound insulation channel 3 and the clamping plate 4 are arranged alternately. The sound insulation channel 3 includes a straight plate 31 and a curved plate 32. Several sets of straight plates 31 and curved plates 32 are fixedly connected to form a continuous wave-like structure. Therefore, after the sound wave is partially absorbed by the protective plate section 1, the remaining weakened sound wave will collide and be absorbed multiple times in the straight plate 31 and the curved plate 32, achieving a good noise reduction effect.

[0023] As a further improvement of this utility model: an EPP vibration damping plate with good sound insulation effect, wherein the plate segment 1, pad segment 2, sound insulation channel 3, and clamping plate 4 are all made of EPP material, and the plate segment 1, pad segment 2, sound insulation channel 3, and clamping plate 4 are all provided with fine structural pores. The reason why EPP foamed polypropylene can absorb sound and reduce noise through the fine pores on its surface is mainly due to its unique cell structure and the resulting good sound absorption performance. Specifically, EPP has a unique cell structure, which causes the air inside the cell pores of the material to vibrate when sound waves propagate to the surface of the EPP material. This vibration further converts sound energy into heat energy and dissipates it, thereby achieving a sound absorption effect. This sound absorption mechanism is not only effective for sound waves of a specific frequency, but can widely absorb sound waves of various frequencies, thereby reducing the propagation and reflection of noise. Specifically, when sound waves enter the EPP material, they will be reflected and scattered multiple times in its cell structure. In this process, the energy of the sound waves is gradually consumed, thereby reducing the intensity of sound propagation. In addition, the pore structure of EPP material has a certain degree of elasticity. When sound waves act on it, they will cause slight deformation of the pores, which also helps to dissipate sound energy.

[0024] The working principle of this utility model is as follows: when noise is generated, the noise will be consumed one by one through the stacked protective plate segments 1. Since several sets of straight plates 31 and curved plates 32 are fixedly connected and form a continuous wave-like structure, after the sound wave is partially absorbed by the protective plate segments 1, the remaining weakened sound wave will collide and be absorbed multiple times in the straight plates 31 and curved plates 32, thus achieving a good noise reduction effect.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An EPP shock-absorbing protective panel with good sound insulation effect, characterized in that, It includes a protective plate section (1) and a pad section (2). The pad section (2) is placed on both sides of the protective plate section (1). The protective plate section (1) has an internal interlayer (5). The internal interlayer (5) is provided with a sound insulation channel (3) and a clamping plate (4). The sound insulation channel (3) and the clamping plate (4) are arranged alternately.

2. The EPP shock-absorbing protective plate with good sound insulation effect according to claim 1, characterized in that, The soundproof channel (3) includes a straight plate (31) and a curved plate (32), and several sets of the straight plates (31) and curved plates (32) are fixedly connected to form a continuous wave-like structure.

3. The EPP shock-absorbing protective plate with good sound insulation effect according to claim 2, characterized in that, The pad section (2) includes a convex plate (21) and a concave plate (22), which are arranged alternately.

4. The EPP shock-absorbing protective plate with good sound insulation effect according to claim 3, characterized in that, A cutting groove (23) is provided on one side of the convex plate (21), and the concave plate (22) is embedded inside the cutting groove (23).

5. The EPP shock-absorbing protective plate with good sound insulation effect according to claim 4, characterized in that, The entire protective plate section (1), pad section (2), sound insulation channel (3) and clamping plate (4) are made of EPP material.

6. The EPP shock-absorbing protective plate with good sound insulation effect according to claim 5, characterized in that, The entire protective plate section (1), pad section (2), sound insulation channel (3) and clamping plate (4) are provided with fine structural holes.