A sound-absorbing interior structure for automobiles

Abstract

This utility model relates to the field of automotive interior technology, specifically to a sound-absorbing interior structure for automobiles, including a protective panel assembly and a sound-absorbing component installed within the protective panel assembly. The protective panel assembly includes an interior protective panel, the back of which has a filling groove, and a back plate is snapped into the port of the filling groove. The sound-absorbing component includes a foamed inner pad adhered to the inner wall of the filling groove, and a perforated plate adhered to the inner side of the back plate. By adhering the foamed inner pad to the filling groove of the interior protective panel, and cooperating with the back plate and perforated plate, a pressurized air cushion layer is assembled in the gap between the perforated plate and the foamed inner pad. By inflating the inside of the pressurized air cushion layer, the inflated pressurized air cushion layer can effectively compress the foamed inner pad and the perforated plate, thereby preventing the sound-absorbing material from affecting the sound absorption effect of the interior protective panel due to factors such as high-temperature aging.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior technology, specifically to an automotive sound-absorbing interior structure. Background Technology

[0002] The interior of a car is an indispensable part of the car body, encompassing various mechanisms and devices required for driving, as well as various facilities used in interior decoration. The interior section not only directly affects the physical and mental experience of drivers and passengers, but also places strict requirements on tactile, tactile, comfort, and aesthetic aspects.

[0003] The interior trim of a car includes the door panels, which are closest to the passengers. Therefore, the sound absorption effect of the door panels directly affects the passengers' experience. Existing car door panels have certain drawbacks in actual use. The sound-absorbing cotton filled in the traditional door panel sandwich layer will shrink due to factors such as high temperature radiation and weathering after long-term use, which will affect the sound absorption effect of the door panel.

[0004] In view of this, a sound-absorbing interior structure for automobiles was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A sound-absorbing interior structure for automobiles includes a protective panel assembly and a sound-absorbing component installed within the protective panel assembly. The protective panel assembly includes an interior protective panel, the back of which has a filling groove, and a back panel is snapped into the port of the filling groove. The sound-absorbing component includes a foam pad adhered to the inner wall of the filling groove, a perforated plate adhered to the inner side of the back panel, a pressurized air cushion layer disposed in the gap between the perforated plate and the foam pad, and multiple evenly distributed anti-slip strips adhered to both sides of the perforated plate and the foam pad facing the pressurized air cushion layer.

[0008] In a preferred embodiment, the present invention can be further configured such that the inner end of the automotive interior panel has a pre-installation hole communicating with the filling groove.

[0009] In a preferred embodiment, the present invention can be further configured such that: a flow guiding layer is provided inside the pressurizing air cushion layer, and an air injection cavity is opened inside the pressurizing air cushion layer, wherein the flow guiding layer is connected to two adjacent air injection cavities;

[0010] A sealing layer is provided on the pressurized air cushion layer.

[0011] In a preferred embodiment, the present invention can be further configured as follows: an air tube is fixedly installed inside the pre-installed hole, a mesh cover is fixedly installed inside the air tube, a guide rod is movably installed inside the mesh cover, a reinforcing spring is provided outside the guide rod, and a plug is installed at the inner end of the guide rod.

[0012] In a preferred embodiment, the present invention can be further configured such that one end of the reinforcing spring is fixedly mounted on the mesh cover, and the other end of the reinforcing spring is adapted to bear pressure on the end of the guide rod.

[0013] In a preferred embodiment, the present invention can be further configured such that the mesh cover has a fan-shaped slot inside.

[0014] In a preferred embodiment, the present invention can be further configured such that the plug consists of a column head and two sealing rings.

[0015] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0016] 1. This utility model involves bonding a foamed inner pad to the filling groove of the automotive inner panel, and then using a back plate and a perforated plate to install a pressurized air cushion layer in the gap between the perforated plate and the foamed inner pad. By inflating the inside of the pressurized air cushion layer, the inflated pressurized air cushion layer can effectively compress the foamed inner pad and the perforated plate, thereby preventing the sound-absorbing material from affecting the sound absorption effect of the inner panel due to factors such as high-temperature aging.

[0017] 2. This utility model uses multiple sets of anti-slip strips evenly distributed on both sides of the pressurized air cushion layer to provide anti-slip protection for the foamed inner pad and the perforated plate. The expanded pressurized air cushion layer can enhance the firmness of the perforated plate and the foamed inner pad filling the scale, and avoid the problem of abnormal noise in the gap of the internal plate caused by the bumps of the car. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0019] Figure 2 This is an exploded view of the protective plate assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the sound-absorbing component of this utility model;

[0021] Figure 4 This utility model Figure 3 A partial schematic diagram;

[0022] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0023] Figure label:

[0024] 100. Interior panel assembly; 110. Interior automotive panel; 1101. Pre-installation hole; 120. Backing plate; 130. Filling slot;

[0025] 200. Sound-absorbing component; 210. Perforated plate; 220. Foamed inner pad; 230. Pressurized air cushion layer; 2301. Air injection chamber; 2302. Flow guide layer; 2303. Sealing layer; 240. Air tube; 2401. Mesh cover; 2402. Guide rod; 2403. Plug; 2404. Reinforcing spring; 250. Anti-slip strip. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0028] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a sound-absorbing interior structure for automobiles.

[0029] Example 1:

[0030] Combination Figures 1 to 5 As shown, the present invention provides a car sound-absorbing interior structure, including a protective panel assembly 100 and a sound-absorbing component 200 installed in the protective panel assembly 100.

[0031] The skid plate assembly 100 includes an interior skid plate 110, the back of which has a filling groove 130, and a back plate 120 is snapped into the port of the filling groove 130.

[0032] The inner end of the car interior trim panel 110 is provided with a pre-installation hole 1101 that communicates with the filling groove 130;

[0033] The sound-absorbing component 200 includes a foamed inner pad 220 adhered to the inner wall of the filling groove 130, a perforated plate 210 adhered to the inner side of the back plate 120, a pressurized air cushion layer 230 disposed in the gap between the perforated plate 210 and the foamed inner pad 220, and a plurality of evenly distributed anti-slip strips 250 adhered to both sides of the perforated plate 210 and the foamed inner pad 220 facing the pressurized air cushion layer 230.

[0034] The pressurized air cushion layer 230 is provided with a flow guide layer 2302, and the pressurized air cushion layer 230 has an air injection chamber 2301 inside. The flow guide layer 2302 is connected to two adjacent air injection chambers 2301.

[0035] A sealing layer 2303 is provided on the pressurized air cushion layer 230.

[0036] Adhesive is applied to the inner wall of the filling groove 130 and the inner side of the back plate 120 using a brush. Then, the foamed inner pad 220 and the perforated plate 210 are respectively bonded to the inner side of the filling groove 130 and the inner side of the back plate 120. The perforated plate 210 is pre-filled with rock wool to enhance the sound insulation effect.

[0037] Multiple sets of anti-slip strips 250 are used to enhance the anti-slip effect of the pressurized air cushion layer 230 in the gap between the perforated plate 210 and the foamed inner pad 220. When the pressurized air cushion layer 230 expands, the multiple sets of anti-slip strips 250 can further enhance the squeezing force on the perforated plate 210 and the foamed inner pad 220 until the cavity between the car interior trim panel 110 and the back panel 120 is perfectly filled, avoiding the problem of reduced sound absorption caused by the unprecedented gap between the car interior trim panel 110 and the back panel 120.

[0038] Example 2:

[0039] Combination Figure 4 and Figure 5 As shown, based on Embodiment 1, an air pipe 240 is fixedly installed inside the pre-installed hole 1101, a mesh cover 2401 is fixedly installed inside the air pipe 240, a guide rod 2402 is movably installed inside the mesh cover 2401, a reinforcing spring 2404 is provided on the outside of the guide rod 2402, and a plug 2403 is installed on the inner end of the guide rod 2402.

[0040] One end of the reinforcing spring 2404 is fixedly installed on the mesh cover 2401, and the other end of the reinforcing spring 2404 is adapted to bear pressure on the end of the guide rod 2402.

[0041] The mesh cover 2401 has a fan-shaped slot inside;

[0042] The plug 2403 consists of a stub and two sealing rings.

[0043] Preferably, two adjacent anti-slip strips 250 are bonded to both sides of the flow guiding layer 2302 to provide centered protection for the expanded pressurized air cushion layer 230;

[0044] When the external inflation device is inserted into the air tube 240, the compressed guide rod 2402 pushes the plug 2403 out of the air tube 240. As the inflation device continues to pump nitrogen into the air injection chamber 2301, the nitrogen is transferred through the guide layer 2302 until the multiple pressurized air cushion layers 230 are fully expanded. This can ultimately enhance the tightness of the gap between the car interior panel 110 and the back panel 120, avoiding the problem of reduced sound absorption caused by gaps.

[0045] The working principle and usage process of this utility model are as follows: First, apply adhesive to the inner wall of the filling groove 130 with a brush. Then, stick the foamed inner pad 220 along the adhesive on the inner wall of the filling groove 130. Next, stick and fix multiple sets of anti-slip strips 250 evenly distributed along the grooves of multiple guide layers 2302. Then, stick the pressurized air cushion layer 230 and multiple sets of anti-slip strips 250 to the other side of the foamed inner pad 220. Then, use adhesive to fix the perforated plate 210 to the inner side of the back plate 120 and fix the back plate 120 to the port of the filling groove 130. At this time, the perforated plate 210 will press the air tube 240 and multiple sets of anti-slip strips 250 to the outside of the foamed inner pad 220.

[0046] Next, the inflation device is inserted into the air tube 240. When the outer end of the guide rod 2402 is pressed, it pushes the plug 2403 into an air injection chamber 2301. As the inflation device continues to supply air into the air injection chamber 2301, the air tube 240 is fully expanded. The expanded air tube 240 will effectively compress the foam inner pad 220 and the perforated plate 210. At this time, the inner space of the filling groove 130 will be completely filled.

[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An automotive sound absorbing interior structure comprising a fender assembly (100), characterized in that, It also includes a sound-absorbing component (200) installed within the protective panel assembly (100); The protective panel assembly (100) includes an interior protective panel (110), and a filling groove (130) is provided on the back of the interior protective panel (110), and a back plate (120) is snapped into the port of the filling groove (130). The sound-absorbing component (200) includes a foamed inner pad (220) adhered to the inner wall of the filling groove (130), a perforated plate (210) adhered to the inner side of the back plate (120), a pressurized air cushion layer (230) provided in the gap between the perforated plate (210) and the foamed inner pad (220), and a plurality of evenly distributed anti-slip strips (250) adhered to both sides of the perforated plate (210) and the foamed inner pad (220) facing the pressurized air cushion layer (230).

2. The automotive sound absorbing interior structure according to claim 1, wherein The inner end of the vehicle interior panel (110) is provided with a pre-installation hole (1101) that communicates with the filling groove (130).

3. The automotive sound absorbing interior structure according to claim 1, wherein The pressurized air cushion layer (230) is provided with a flow guide layer (2302), and an air injection chamber (2301) is opened inside the pressurized air cushion layer (230). The flow guide layer (2302) is connected to two adjacent air injection chambers (2301). A sealing layer (2303) is provided on the pressurized air cushion layer (230).

4. The automotive sound absorbing interior structure according to claim 2, wherein An air tube (240) is fixedly installed inside the pre-installed hole (1101). A mesh cover (2401) is fixedly installed inside the air tube (240). A guide rod (2402) is movably installed inside the mesh cover (2401). A reinforcing spring (2404) is provided on the outside of the guide rod (2402). A plug (2403) is installed at the inner end of the guide rod (2402).

5. The automotive sound absorbing interior structure according to claim 4, wherein One end of the reinforcing spring (2404) is fixedly mounted on the mesh cover (2401), and the other end of the reinforcing spring (2404) is adapted to bear pressure on the end of the guide rod (2402).

6. The automotive sound absorbing interior structure according to claim 4, wherein The mesh cover (2401) has a fan-shaped slot inside.

7. The automotive sound absorbing interior structure according to claim 4, wherein The plug (2403) consists of a spool and two sealing rings.

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