Lining of sound insulation cellular board

Abstract

The utility model discloses a soundproof honeycomb panel lining, which relates to the technical field of honeycomb panels, and is characterized in that the soundproof honeycomb panel lining comprises a honeycomb core material, soundproof cotton layers, fixing plates and panels are sequentially arranged on the end faces of the two sides of the honeycomb core material, a plurality of clamping columns are fixedly connected onto the fixing plates, and the clamping columns are fixedly connected onto the fixing plates. Clamping pieces are fixedly connected to the end faces, away from the fixing plate, of the clamping columns, a plurality of fixing holes are formed in the panel, the multiple clamping columns stretch into the fixing holes, the multiple clamping pieces stretch out of the fixing holes and float on the surface of the panel, and the honeycomb core material is fixedly connected with the sound insulation cotton layer. The sound insulation cotton layer is fixedly connected with the fixing plate. According to the sound insulation honeycomb plate lining, through the arrangement of the structure, the sealing effect of the edge of the honeycomb plate is improved, and the sound insulation honeycomb plate lining has the good sound insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of honeycomb panel technology, and more specifically, to the inner lining of sound-insulating honeycomb panels. Background Technology

[0002] Sound insulation honeycomb panel lining is a sound insulation material composed of three parts: a face panel, a honeycomb core material, and a back panel. The face panel and back panel are usually made of high-strength aluminum or stainless steel plates, while the honeycomb core material is composed of multiple hexagonal honeycomb or cylindrical units and is the core part of the sound insulation honeycomb panel. This unique structural design gives the sound insulation honeycomb panel lining excellent sound insulation effect.

[0003] Honeycomb panels are used in various parts of automobile manufacturing, such as engine compartments, doors, floor panels, and roofs. Their main function is to reduce the impact of noise on the vehicle interior. After manufacturing, the sound insulation honeycomb panel is a single long plate. When used in automobile manufacturing, the honeycomb panel needs to be cut. The honeycomb core material is composed of several hexagonal honeycomb or cylindrical units. After cutting, the sealing of the honeycomb panel edges is poor, and the sound insulation effect at the edges of the honeycomb panel decreases.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sound-insulating honeycomb panel lining.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: the sound-insulating honeycomb panel lining includes a honeycomb core material, and a sound-insulating cotton layer, a fixing plate, and a panel are sequentially arranged on both end faces of the honeycomb core material. A plurality of snap-fit ​​posts are fixedly connected to the fixing plate, and snap-fit ​​pieces are fixedly connected to the end faces of the snap-fit ​​posts away from the fixing plate. A plurality of fixing holes are opened on the panel, and a plurality of the snap-fit ​​posts extend into the fixing holes, and a plurality of the snap-fit ​​pieces extend out of the fixing holes and float on the surface of the panel. The honeycomb core material is fixedly connected to the sound-insulating cotton layer, and the sound-insulating cotton layer is fixedly connected to the fixing plate.

[0007] The present invention is further configured such that: the height of the snap-fit ​​post is 1-2mm, the thickness of the snap-fit ​​piece is 0.5-1mm, and a plurality of the snap-fit ​​posts and a plurality of snap-fit ​​pieces are integrally formed with the fixing plate.

[0008] The present invention is further configured such that: the snap-fit ​​posts are arranged in a matrix array on the fixing plate and the column spacing is the same as the row spacing; and the plurality of fixing holes are arranged in a matrix array on the panel and the array parameters are the same as the array parameters of the snap-fit ​​posts.

[0009] The present invention is further configured such that: the structure of the snap-fit ​​piece is cylindrical, and the axis of the snap-fit ​​piece is coaxial with the axis of the snap-fit ​​column.

[0010] The present invention is further configured such that the horizontal cross-sectional area of ​​the snap-fit ​​piece is greater than the horizontal cross-sectional area of ​​the snap-fit ​​post.

[0011] The present invention is further configured such that: the honeycomb core material is made of polyurethane material, and the fixing plate, several snap-fit ​​posts and several snap-fit ​​pieces are made of polypropylene material.

[0012] In summary, this utility model has the following beneficial effects: Through the cooperation of the snap-fit ​​posts, snap-fit ​​pieces, and fixing holes, the fixing plate and the panel are fixedly connected. After cutting the snap-fit ​​posts and snap-fit ​​pieces with a knife, part of the fixing plate is separated from the panel. At this time, the panel can be bent and the honeycomb core material underneath can be cut off. The excess panel can be used for edge sealing, that is, bending the excess panel against the honeycomb core material to complete the sealing of the honeycomb panel edge, reducing the problem of reduced sound insulation effect. At the same time, due to the use of snap-fit ​​structure, the assembly process is simpler and faster, improving production efficiency. The lightweight and high-strength polyurethane material as the honeycomb core material and the durable polypropylene material as the panel, fixing layer, snap-fit ​​posts, and snap-fit ​​pieces further improve the performance and service life of the entire structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an exploded view of the present invention;

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] In the diagram: 1. Honeycomb core material; 2. Sound insulation cotton layer; 3. Fixing plate; 301. Clip-on post; 302. Clip-on piece; 4. Panel; 401. Fixing hole. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Soundproof honeycomb panel lining, such as Figure 1 , Figure 2 and Figure 3As shown, the panel includes a honeycomb core material 1. Sound insulation cotton layer 2, a fixing plate 3, and a panel 4 are sequentially arranged on both end faces of the honeycomb core material 1. Several locking posts 301 are fixedly connected to the fixing plate 3, and locking pieces 302 are fixedly connected to the end faces of the locking posts 301 away from the fixing plate 3. Several fixing holes 401 are opened on the panel 4. Several locking posts 301 extend into the fixing holes 401, and several locking pieces 302 extend out of the fixing holes 401 and float on the surface of the panel 4. The honeycomb core material 1 is fixedly connected to the sound insulation cotton layer 2, and the sound insulation cotton layer 2 is fixedly connected to the fixing plate 3. When cutting the honeycomb panel, the cutting pattern is first determined. When cutting the excess part, a cutting tool is used to separate the locking posts 301 and locking pieces 302. Part of the fixing plate 3 falls off the panel 4. Then, the lower fixing plate 3, sound insulation cotton layer 2, and honeycomb core material 1 are cut off. Panel 4 protrudes from the honeycomb core material 1, the sound insulation cotton layer 2, and the fixing plate 3. The bent portion of panel 4 fits against the edge of the cut honeycomb core material 1, and is fixed to the edge of the honeycomb core material 1 by adhesive, thus achieving the edge sealing operation of the honeycomb panel. This structure is easy to operate and can complete the edge sealing operation without additional edge sealing materials, ensuring that the edge of the honeycomb panel still has a good sound insulation effect. The sound insulation cotton layer 2 set between the fixing plate 3 and the honeycomb core material 1 has a porous fiber structure, which achieves the noise reduction effect by converting sound wave energy into heat energy. When sound travels through the air, the sound waves will interact with the multi-fiber structure in the sound insulation cotton layer 2. The reflection, collision, and friction between the fibers cause the sound wave energy to gradually convert into heat energy, thereby weakening the sound wave intensity and ultimately achieving the effect of sound insulation and noise reduction.

[0019] like Figure 1 and Figure 2 As shown, the honeycomb core material 1 is made of polyurethane, which has good sound insulation properties. The dimensions of the honeycomb core material 1 are determined according to design requirements, such as length, width, and thickness. For automotive manufacturing applications, the length of the honeycomb core material 1 can be customized according to the approximate dimensions of the automotive parts. For example, for honeycomb panel linings used in the engine compartment of an automobile, the length of the honeycomb core material 1 can be set to about 1-2 meters. The panel 4, fixing layer, snap-fit ​​posts 301, and snap-fit ​​pieces 302 are made of polypropylene. The thickness of the panel 4 is determined according to the appearance and strength requirements of the automotive parts, generally between 1-3 mm. For the fixing layer, the shape and size are designed according to the layout of the snap-fit ​​posts 301 and snap-fit ​​pieces 302. The height of the snap-fit ​​posts 301 is set to 1-2 mm, and the snap-fit ​​posts 301 and the fixing layer are integrally formed by a mold. The snap-fit ​​pieces 302 on the snap-fit ​​posts 301 are formed by subsequent hot pressing. The snap-fit ​​posts 301 are arranged in a matrix array on the fixing layer, with the column spacing being the same as the row spacing. For example, the spacing can be set to 5- 10mm, the number of rows and columns of the matrix is ​​determined based on the dimensions of the honeycomb core material 1 and the panel 4.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, a matrix array of fixing holes 401 with the same array parameters as the snap-fit ​​posts 301 is formed on panel 4. This design allows for quick and accurate alignment of the snap-fit ​​posts 301 with the fixing holes 401 during assembly, improving assembly efficiency. The snap-fit ​​posts 301 are then inserted into the corresponding fixing holes 401, extending out of the holes. Finally, the snap-fit ​​posts 301 extending out of the holes are heat-pressed to form a snap-fit ​​connection. The thickness of the snap-fit ​​piece 302 is 0.5-1mm. The snap-fit ​​piece 302, snap-fit ​​post 301 and fixing hole 401 realize the fixed connection between the panel 4 and the fixing plate 3. The horizontal cross-sectional area of ​​the snap-fit ​​piece 302 is larger than the horizontal cross-sectional area of ​​the snap-fit ​​post 301. The structure of the snap-fit ​​piece 302 is columnar and its axis is coaxial with the axis of the snap-fit ​​post 301, which ensures good structural stability. The fixing hole 401 and the snap-fit ​​post 301 with the same matrix array parameters ensure the uniformity of the overall structure of the honeycomb panel.

[0021] During assembly, the sound insulation cotton layer 2 is first placed on both sides of the honeycomb core material 1. The honeycomb core material 1 and the sound insulation cotton layer 2 can be bonded together with glue. Then, the fixed plate 3 and the panel 4 that have been fixedly connected are bonded to the sound insulation cotton layer 2 with glue. After the glue cools down, the processing and manufacturing of the sound insulation honeycomb panel is completed.

[0022] When the finished sound insulation honeycomb panel liner is used in automobile manufacturing, the entire sound insulation honeycomb panel is cut according to the specific shape and size of the automobile parts. When manufacturing the car door liner, it is cut according to the outline of the door. After cutting, due to the structural design of the snap-fit ​​post 301 and snap-fit ​​piece 302, the fixing plate 3 can be separated from the panel 4 by cutting part of the snap-fit ​​post 301, and the panel 4 is bent to remove the honeycomb core material 1, sound insulation cotton layer 2, and fixing plate 3 underneath. The excess panel 4 can be used for edge sealing, which can ensure the sealing of the honeycomb panel edge to a certain extent. Finally, the cut sound insulation honeycomb panel liner is installed in the corresponding parts of the automobile, such as the engine compartment, door, floor or roof.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sound-insulating honeycomb panel lining, comprising a honeycomb core material (1), characterized in that: The honeycomb core material (1) is provided with a sound insulation cotton layer (2), a fixing plate (3) and a panel (4) on both sides of the end face. A number of snap-fit ​​posts (301) are fixedly connected to the fixing plate (3). A snap-fit ​​piece (302) is fixedly connected to the end face of the snap-fit ​​post (301) away from the fixing plate (3). A number of fixing holes (401) are opened on the panel (4). A number of snap-fit ​​posts (301) extend into the fixing holes (401), and a number of snap-fit ​​pieces (302) extend out of the fixing holes (401) and float on the surface of the panel (4). The honeycomb core material (1) is fixedly connected to the sound insulation cotton layer (2), and the sound insulation cotton layer (2) is fixedly connected to the fixing plate (3).

2. The sound-insulating honeycomb panel lining according to claim 1, characterized in that: The height of the snap-fit ​​post (301) is 2-3mm, and the thickness of the snap-fit ​​piece (302) is 0.5-1mm. Several snap-fit ​​posts (301) and several snap-fit ​​pieces (302) are integrally formed with the fixing plate (3).

3. The sound-insulating honeycomb panel lining according to claim 2, characterized in that: The snap-fit ​​posts (301) are arranged in a matrix array on the fixing plate (3) with the same column spacing and row spacing. A number of fixing holes (401) are arranged in a matrix array on the panel (4) with the same array parameters as the snap-fit ​​posts (301).

4. The sound-insulating honeycomb panel lining according to claim 1, characterized in that: The snap-fit ​​piece (302) has a columnar structure, and the axis of the snap-fit ​​piece (302) is coaxial with the axis of the snap-fit ​​post (301).

5. The sound-insulating honeycomb panel lining according to claim 4, characterized in that: The horizontal cross-sectional area of ​​the snap-fit ​​piece (302) is greater than the horizontal cross-sectional area of ​​the snap-fit ​​post (301).

6. The sound-insulating honeycomb panel lining according to claim 1, characterized in that: The honeycomb core material (1) is made of polyurethane material, and the fixing plate (3), several snap-fit ​​posts (301) and several snap-fit ​​pieces (302) are made of polypropylene material.

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