Multifunctional noise-reducing butyl damping rubber sheet

Abstract

The utility model discloses a multifunctional noise reduction butyl damping rubber sheet, which belongs to the technical field of damping rubber sheets and comprises a rubber sheet body, a noise reduction structure is arranged on one side of the rubber sheet body, an auxiliary structure is arranged in the rubber sheet, the noise reduction structure comprises a noise reduction hole, a sound inlet hole and a sound scattering groove, the noise reduction hole is formed in the rubber sheet body, and the sound scattering groove is formed in the rubber sheet body. The sound inlet hole penetrates to one side of the noise reduction hole, through the arrangement of the noise reduction structure, a path for transmitting and dispersing noise in the film is provided for the noise in the process, the strength and the transmission range of the noise are further reduced, the noise reduction efficiency of the film is improved, through the arrangement of the auxiliary structure, the structural stability of the film body is improved in the process, and the noise reduction efficiency is improved. The film is not easy to deform or damage in the installation and use process, not only assists noise in entering, but also provides an auxiliary function of installation and positioning, so that the film can be quickly and accurately positioned to a position needing noise reduction during installation, and the auxiliary noise reduction efficiency of the film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of damping films, in particular to a multifunctional noise-reducing butyl damping film. Background Art

[0002] Damping film is a hot-melt composite sheet that is blended and pressed with multiple components. It can be made into different shapes and thicknesses as needed and laid on the car body. The existing car body is laid with asphalt-based damping film, which is mainly asphalt. Asphalt is brittle in winter and sticky in summer. The damping film is stacked for a long time without isolation. When the temperature rises in summer, the damping film is easy to stick to each other, and a coating film is required for isolation. The film covering the damping film is currently PE film. Due to the process adjustment of the main engine factory, the original process was to bake first and then paint, but now it is changed to paint first and then bake. During this process, the PE film has not melted yet, and the car body laid with the damping film needs to be painted.

[0003] During the existing use, when spraying paint, the paint mist will fall on the PE film to form a thin paint film. In the subsequent drying process, the paint film on the surface is easily brittle and broken due to the heat (the brittleness of the paint film is because the PE film has not melted, and the paint film cannot be adsorbed on the product, which is equivalent to a layer of film between the product and the paint film. The paint film is very brittle after being heated and baked and will break at a touch). Since it is not adsorbed on the product, it is easy to fall off. In the subsequent blowing process, the paint film will fly around and cause pollution to the car body, affecting the visual effect of the surface of the visible parts;

[0004] The existing patent (Announcement No.: CN210390353U) is a damping film for automobiles, including an asphalt-based damping film. The surface of the damping film is provided with an anti-adhesion layer, and the anti-adhesion layer is made of fiber paper material. The fiber paper is bonded to the damping film by hot pressing. The anti-adhesion layer on the surface of the damping film for automobiles of the utility model replaces the PE film with fiber paper, which can prevent the damping films from being overlapped for too long and causing hardening and adhesion. At the same time, the performance of the fiber paper does not change after the car body is baked at high temperature, and will not affect the cleanliness of the car interior and the visual effect of the surface.

[0005] In view of the above problems, the existing patent provides a solution. The existing film has only one connecting layer, but it does not have the effect of noise reduction, so that noise is generated when the car is running.

[0006] Therefore, a multifunctional noise-reducing butyl damping film is proposed. Utility Model Content

[0007] The utility model aims to provide a multifunctional noise-reducing butyl damping film, which can solve the problem that the existing multifunctional noise-reducing butyl damping film has only one connecting layer, but does not have the noise reduction effect, so that noise is generated when the car is running.

[0008] To achieve the above object, the utility model provides the following technical solution: a multifunctional noise-reducing butyl damping film, comprising a film body, a noise reduction structure is arranged on one side of the film body, and an auxiliary structure is arranged inside the film;

[0009] The noise reduction structure includes a noise reduction hole, a sound inlet hole and a sound dispersion groove. The noise reduction hole is opened inside the film body, the sound inlet hole penetrates to one side of the noise reduction hole, the sound dispersion groove is opened on the top of the film body, the noise reduction hole, the sound inlet hole and the sound dispersion groove are connected, and the side shape of the noise reduction hole is a diamond shape.

[0010] Preferably, the auxiliary structure includes an annular groove and an entrance groove, the annular groove is opened inside the film body, the entrance groove is opened at the bottom of the film body, the annular groove is connected to the inside of the noise reduction hole, and the entrance groove is connected to the inside of the noise reduction hole.

[0011] Preferably, an anti-slip portion is provided on the top of the film body, and the anti-slip portion is in the shape of a long strip.

[0012] Preferably, a reinforcement layer is provided below the film body, and the reinforcement layer is made of high-strength fiber material.

[0013] Preferably, an adhesive layer is provided between the reinforcing layer and the film body.

[0014] Preferably, anti-slip grooves are provided on both sides of the film body.

[0015] Preferably, a plurality of reinforcement plates are arranged inside the noise reduction hole.

[0016] Preferably, a connecting rod for connecting the multiple reinforcement plates is provided on one side of the multiple reinforcement plates.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The present application is provided with a noise reduction structure, which provides a path for the noise to propagate and disperse inside the film, further reducing the intensity and propagation range of the noise and improving the efficiency of film noise reduction.

[0019] 2. The present application is provided with an auxiliary structure, which increases the structural stability of the film body, making it less likely to deform or be damaged during installation and use. It not only assists in preventing noise from entering, but also provides auxiliary functions for installation and positioning, so that the film can be quickly and accurately positioned at the location where noise reduction is required during installation, thereby improving the efficiency of the film in assisting noise reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is the overall structural view of the utility model;

[0022] Figure 2 It is a left-side stereoscopic cross-sectional view of the utility model;

[0023] Figure 3 It is a right side view of the utility model;

[0024] Figure 4 It is a top view of the utility model;

[0025] Figure 5 It is a bottom view of the utility model.

[0026] Description of reference numerals:

[0027] 1. Film body; 2. Noise reduction structure; 3. Auxiliary structure; 4. Anti-slip part; 5. Reinforcement layer; 6. Adhesive layer; 7. Anti-slip pattern; 8. Reinforcement plate; 9. Connecting rod; 201. Noise reduction hole; 202. Sound inlet hole; 203. Sound diffusion groove; 301. Annular groove; 302. Entry groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 5 , the utility model provides a technical solution:

[0030] A multifunctional noise-reducing butyl damping film comprises a film body 1, a noise reduction structure 2 is arranged on one side of the film body 1, and an auxiliary structure 3 is arranged inside the film;

[0031] The noise reduction structure 2 includes a noise reduction hole 201, a sound inlet hole 202 and a sound dispersion groove 203. The noise reduction hole 201 is opened inside the film body 1, the sound inlet hole 202 passes through one side of the noise reduction hole 201, and the sound dispersion groove 203 is opened on the top of the film body 1. The noise reduction hole 201, the sound inlet hole 202 and the sound dispersion groove 203 are connected, and the side shape of the noise reduction hole 201 is a diamond.

[0032] Specifically, Figure 2 As shown, the auxiliary structure 3 includes an annular groove 301 and an entry groove 302. The annular groove 301 is opened inside the film body 1, and the entry groove 302 is opened at the bottom of the film body 1. The annular groove 301 is connected to the interior of the noise reduction hole 201, and the entry groove 302 is connected to the interior of the noise reduction hole 201.

[0033] Specifically, Figure 1 As shown, an anti-skid portion 4 is provided on the top of the film body 1, and the anti-skid portion 4 is in the shape of a long strip.

[0034] Specifically, Figure 1 As shown, a reinforcement layer 5 is arranged below the film body 1, and the reinforcement layer 5 is made of high-strength fiber material.

[0035] Specifically, Figure 1 As shown, an adhesive layer 6 is provided between the reinforcing layer 5 and the film body 1 .

[0036] Specifically, Figure 3 As shown, anti-slip grooves 7 are provided on both sides of the film body 1 .

[0037] When noise propagates to the multifunctional noise-reducing butyl damping film, the noise first enters the noise reduction hole 201 through the sound inlet hole 202. The unique diamond-shaped side shape of the noise reduction hole 201 helps to disperse the fluctuation of noise and reduce the propagation of noise in a specific direction. Subsequently, the noise propagates inside the noise reduction hole 201 and is further dispersed through the sound dispersion groove 203, thereby reducing the intensity and propagation range of the noise. The annular groove 301 in the auxiliary structure 3 enhances the structural stability of the film body 1, ensuring that the film is not easily deformed or damaged during use. The entry groove 302 not only assists the entry of noise, but also provides auxiliary functions for installation and positioning, so that the film can be quickly and accurately positioned to the position where noise reduction is required during installation. In addition, the anti-slip portion 4 on the top of the film body 1 and the anti-slip grooves 7 on both sides increase the stability of the film during installation and use, preventing it from sliding or shifting. The reinforcement layer 5 below is made of high-strength fiber material, which improves the overall strength and durability of the film, ensuring that the film maintains stable performance during long-term use.

[0038] Specifically, Figure 1 As shown, a plurality of reinforcing plates 8 are arranged inside the noise reduction hole 201 .

[0039] Specifically, Figure 2 As shown, a connecting rod 9 for connecting the multiple reinforcement plates 8 is provided on one side of the multiple reinforcement plates 8 .

[0040] The reinforcement plate 8 and the connecting rod 9 together form a stable structural network, which enhances the overall strength of the noise reduction hole 201. Even under high-intensity noise impact, the noise reduction hole 201 can maintain its shape and function. When noise waves propagate inside the noise reduction hole 201, they will collide and reflect with the reinforcement plate 8. This collision and reflection will disperse the noise energy to different directions and frequencies, thereby reducing the intensity and concentration of the noise. The reinforcement plate 8 and the connecting rod 9 will produce tiny vibrations and deformations under the action of noise waves. These vibrations and deformations will convert part of the noise energy into heat energy or other forms of energy, thereby reducing the noise output.

[0041] By adopting the above technical solution, the problem that the existing film has only one connecting layer but does not have the noise reduction effect and causes noise when the car is running is solved.

[0042] Working principle: When the present application is in use, first, when the noise propagates to the multifunctional noise-reducing butyl damping film, the noise first enters the noise reduction hole 201 through the sound inlet hole 202. The unique diamond-shaped side shape of the noise reduction hole 201 helps to disperse the fluctuation of the noise and reduce the propagation of the noise in a specific direction. Subsequently, the noise propagates inside the noise reduction hole 201 and is further dispersed through the sound dispersion groove 203, thereby reducing the intensity and propagation range of the noise. The annular groove 301 in the auxiliary structure 3 enhances the structural stability of the film body 1, ensuring that the film is not easily deformed or damaged during use. The entry groove 302 not only assists the entry of noise, but also provides auxiliary functions of installation and positioning, so that the film can be quickly and accurately positioned to the position where noise reduction is required during installation. In addition, the anti-slip portion 4 on the top of the film body 1 and the anti-slip grooves 7 on both sides increase the safety of the film during installation and use. The stability during the process is prevented from sliding or shifting. The reinforcement layer 5 below is made of high-strength fiber material, which improves the overall strength and durability of the film and ensures that the film maintains stable performance during long-term use. The reinforcement plate 8 and the connecting rod 9 together constitute a stable structural network, which enhances the overall strength of the noise reduction hole 201. Even under high-intensity noise impact, the noise reduction hole 201 can maintain its shape and function. When noise waves propagate inside the noise reduction hole 201, they will collide and reflect with the reinforcement plate 8. This collision and reflection will disperse the noise energy in different directions and frequencies, thereby reducing the intensity and concentration of the noise. The reinforcement plate 8 and the connecting rod 9 will produce tiny vibrations and deformations under the action of noise waves. These vibrations and deformations will convert part of the noise energy into heat energy or other forms of energy, thereby reducing the noise output.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A multifunctional noise-reducing butyl damping film, comprising a film body (1), characterized in that: A noise reduction structure (2) is provided on one side of the film body (1), and an auxiliary structure (3) is provided inside the film; The noise reduction structure (2) comprises a noise reduction hole (201), a sound inlet hole (202) and a sound dispersion groove (203); the noise reduction hole (201) is arranged inside the film body (1); the sound inlet hole (202) penetrates to one side of the noise reduction hole (201); the sound dispersion groove (203) is arranged at the top of the film body (1); the noise reduction hole (201), the sound inlet hole (202) and the sound dispersion groove (203) are connected; and the side surface shape of the noise reduction hole (201) is a rhombus.

2. The multifunctional noise reduction butyl damping film according to claim 1 is characterized in that: The auxiliary structure (3) comprises an annular groove (301) and an entry groove (302); the annular groove (301) is opened inside the film body (1); the entry groove (302) is opened at the bottom of the film body (1); the annular groove (301) is connected to the inside of the noise reduction hole (201); and the entry groove (302) is connected to the inside of the noise reduction hole (201).

3. The multifunctional noise reduction butyl damping film according to claim 1 is characterized in that: The top of the film body (1) is provided with an anti-slip portion (4), and the anti-slip portion (4) is in the shape of a long strip.

4. The multifunctional noise reduction butyl damping film according to claim 1, characterized in that: A reinforcement layer (5) is provided below the film body (1), and the reinforcement layer (5) is made of a high-strength fiber material.

5. The multifunctional noise-reducing butyl damping film according to claim 4 is characterized in that: An adhesive layer (6) is provided between the reinforcing layer (5) and the film body (1).

6. The multifunctional noise reduction butyl damping film according to claim 1, characterized in that: Anti-slip grooves (7) are provided on both sides of the film body (1).

7. The multifunctional noise reduction butyl damping film according to claim 1, characterized in that: A plurality of reinforcement plates (8) are arranged inside the noise reduction hole (201).

8. The multifunctional noise reduction butyl damping film according to claim 7, characterized in that: A connecting rod (9) for connecting the multiple reinforcement plates (8) is provided on one side of the multiple reinforcement plates (8).

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