Automobile sound insulation pad with moisture-proof function

By designing an interlocking structure for the frame and side frame on the car sound insulation pad, combined with positioning holes and fastening screws for fixation, and setting a moisture-proof and breathable layer and a sound-absorbing layer on the inner side, the problems of weak adhesion and moisture absorption of the sound insulation pad are solved, achieving stable installation and good sound insulation performance.

CN223791433UActive Publication Date: 2026-01-13JIANGSU SAILUDA AUTOMOTIVE INSULATION MATERIALS CO LTD
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Patent Information

Application Number
CN202520195912.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-13
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Existing car sound insulation mats are prone to not being firmly attached during installation, and after prolonged use, they are susceptible to moisture and mold, affecting the sound insulation effect and producing odors.

Method used

The sound insulation pad structure with a frame and side frame is designed. It is connected by hooks and slots, and fixed by positioning holes and fastening screws. A moisture-proof and breathable layer, a sound-absorbing layer and a bottom layer are set on the inside of the frame. It is made of plastic woven material and glass fiber material.

Benefits of technology

It improves the installation stability and durability of the sound insulation pad, prevents loosening and displacement, keeps the sound insulation pad dry and stable in performance, and enhances the sound insulation effect and structural strength.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223791433U_ABST
Patent Text Reader

Abstract

The utility model discloses an automobile sound insulation pad with a moisture-proof function, which relates to the technical field of automobile sound insulation and comprises a frame and first positioning holes, the first positioning holes are arranged on the side surface of the frame, clamping hooks are fixed on the outer side of the frame and are uniformly distributed along four corners of the frame, and a side frame is arranged on one side of the frame. According to the automobile sound insulation pad with the damp-proof function, the clamping hooks are additionally arranged on the outer sides of the frames, the frames are connected with the clamping grooves in the inner sides of the side frames in a clamped mode through the clamping hooks, the frames and the side frames can be fixed, and the sound insulation pad can be effectively prevented from loosening or displacing in the using process; the installation stability of the sound insulation pad can be effectively guaranteed in the installation process, positioning holes are formed in the frames and the side frames, stable installation and accurate positioning can be achieved, the use effect is improved, installation convenience is improved, the stable effect is increased for installation of the sound insulation pad, and the service life of the sound insulation pad is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of automotive sound insulation technology, specifically to an automotive sound insulation mat with moisture-proof function. Background Technology

[0002] During the driving process, tires and wind resistance generate a certain amount of noise. Therefore, sound insulation pads are installed inside the car door panels to reduce wind noise and tire noise, ensuring that the driver is not affected in the driver's seat, thereby preventing traffic accidents and improving driving comfort. It is one of the essential accessories in automobile production.

[0003] However, existing car sound insulation mats still have some problems during use:

[0004] In the current process of installing car sound insulation pads, the sound insulation material is usually directly glued to the car using adhesive. However, after long-term use, the sound insulation pad will not adhere firmly. Moreover, since cars are mostly parked outdoors, the sound insulation pad is easily affected by the environment, which can lead to moisture and mold growth. This not only affects the sound insulation effect but also produces odors, which has a negative impact on the driving and riding environment.

[0005] Therefore, we propose a car sound insulation mat with moisture-proof function to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a car sound insulation mat with moisture-proof function, in order to solve the problem mentioned in the background art that, during the installation process of car sound insulation mats, the sound insulation material is usually directly glued to the car with adhesive. If used for a long time, the sound insulation mat will not be firmly attached. Moreover, since cars are mostly parked outdoors, the sound insulation mat is easily affected by the environment, resulting in moisture and mold. This not only affects the sound insulation effect, but also produces odors, which has an adverse impact on the driving and riding environment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a car sound insulation pad with moisture-proof function, comprising a frame and a first positioning hole:

[0008] The side surface of the frame is provided with a first positioning hole, the outer side of the frame is fixed with a hook, and the hooks are evenly distributed along the four corners of the frame. A side frame is provided on one side of the frame, and two sets of side frames are symmetrically arranged along the frame. A slot is provided on the inner side of the side frame, and the hooks form an engaging structure with the side frame through the slot. A second positioning hole is provided on the outer surface of the side frame.

[0009] By adopting the above technical solution, a frame is added to the outside of the sound insulation pad. The frame can play a role in positioning or fixing the sound insulation pad during installation. Side frames are added to both ends of the frame. The frame and the side frames are connected by hooks and slots, which can facilitate the assembly and disassembly of the frame with the sound insulation pad installed, thereby ensuring stable installation and durability in humid environments.

[0010] Preferably, a base plate is provided below the frame, and a first positioning post is fixed on the upper surface of the base plate, and the first positioning post is adapted to the first positioning hole.

[0011] By adopting the above technical solution, by adding a base plate at the bottom of the frame, and the base plate being connected to the first positioning hole on the surface of the frame through the first positioning post, it can be ensured that the base plate and the frame can be firmly and tightly connected together, providing precise positioning and installation for the sound insulation pad.

[0012] Preferably, the first positioning post has a first threaded groove in the middle, the first positioning hole has a first fastening screw passing through the middle, and the frame is fastened to the base plate through the first fastening screw.

[0013] By adopting the above technical solution, after the first positioning post is embedded in the middle of the first positioning hole, the frame and the first positioning post are fastened together by the first fastening screw, which can enhance the structural strength and maintain the stability of the sound insulation pad connection.

[0014] Preferably, the base plate is fixed with second positioning posts at its four corners, and the second positioning posts are adapted to the second positioning holes.

[0015] By adopting the above technical solution, and by designing the second positioning post to correspond to the second positioning hole of the side frame, it is possible to ensure the precise positioning and stable connection between the base plate and the side frame, thereby improving the accuracy and efficiency of installation.

[0016] Preferably, the second positioning post has a second threaded groove in the middle, the second positioning hole has a second fastening screw passing through the middle, and the side frame is fastened to the base plate through the second fastening screw. The bottom of the base plate is adhered with a high-adhesion adhesive sheet.

[0017] By adopting the above technical solution, after the base plate and the side frame are interlocked, the two are fastened together by the second fastening screw. This not only makes the installation easy, but also ensures a firm and reliable connection that is not easily affected by external forces and will not fall off or move. This not only improves the installation stability of the sound insulation pad, but also provides a reliable guarantee for its long-term use.

[0018] Preferably, a surface layer is fixed to the inner side of the frame, and the surface layer is made of plastic woven material. A moisture-proof and breathable layer is fixed to the bottom of the surface layer, and the moisture-proof and breathable layer is composed of silica gel desiccant. A sound-absorbing layer is fixed to the bottom of the moisture-proof and breathable layer, and the sound-absorbing layer is made of sound-absorbing cotton material. A bottom layer is fixed to the bottom of the sound-absorbing layer, and the bottom layer is made of glass fiber.

[0019] By adopting the above technical solution, a sound insulation pad structure composed of a surface layer, a moisture-proof and breathable layer, a sound-absorbing layer and a bottom layer is designed on the inner side of the frame. This not only meets the sound insulation requirements, but also effectively absorbs moisture, preventing further penetration and affecting the normal use of the sound insulation pad, thus enhancing its durability.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Hooks are added to the outer side of the frame, and the frame is connected to the slots on the inner side of the side frame by the hooks. This can fix the frame to the side frame and effectively prevent the sound insulation pad from loosening or shifting during use. This ensures the stability of the sound insulation pad during installation. Positioning holes are opened on both the frame and the side frame to achieve stable installation and precise positioning, improve the use effect, increase the convenience of installation, increase the stability of the sound insulation pad, and extend the service life of the sound insulation pad.

[0022] 2. The sound insulation pad structure, composed of a surface layer, a moisture-proof and breathable layer, a sound-absorbing layer, and a bottom layer, is designed on the inner side of the frame. The surface layer is made of woven plastic, which has good wear resistance, tear resistance, and water resistance, effectively protecting the internal structure of the sound insulation pad while providing an aesthetically pleasing appearance. The moisture-proof and breathable layer is composed of silica gel desiccant, which has excellent moisture absorption properties, absorbing and locking in moisture to prevent it from penetrating into the sound insulation pad, thus keeping the pad dry and stable. The sound-absorbing layer is made of sound-absorbing cotton, a highly efficient sound-absorbing material that absorbs and reduces sound transmission, improving sound insulation. The bottom layer is made of fiberglass, which has high strength, wear resistance, and corrosion resistance, enhancing the structural strength and stability of the sound insulation pad. The sound insulation pad not only has excellent sound insulation but also offers multiple advantages such as moisture resistance, breathability, wear resistance, and corrosion resistance, meeting the needs of various usage scenarios. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model from both front and top views;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of this utility model;

[0025] Figure 3This is a schematic diagram of the connection structure between the side frame and the base plate of this utility model;

[0026] Figure 4 This is a schematic diagram of the connection structure between the frame and the base plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the frame and the side frame of this utility model;

[0028] Figure 6 This is a schematic diagram of the composition of the sound insulation pad of this utility model.

[0029] In the diagram: 1. Frame; 2. First positioning hole; 3. Hook; 4. Side frame; 5. Slot; 6. Second positioning hole; 7. Base plate; 8. First positioning post; 9. First threaded groove; 10. First fastening screw; 11. Second positioning post; 12. Second threaded groove; 13. Second fastening screw; 14. High-adhesion adhesive sheet; 15. Surface layer; 16. Moisture-proof and breathable layer; 17. Sound-absorbing layer; 18. Bottom layer. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] To address the issue that existing technologies often result in sound insulation pads becoming damp and moldy due to the outdoor environment, affecting sound insulation performance and producing odors, the following solution is disclosed. Please refer to [link / reference]. Figures 1-6 This utility model provides a technical solution: a car sound insulation pad with moisture-proof function, including a frame 1 and a first positioning hole 2: the side surface of the frame 1 is provided with a first positioning hole 2, the outer side of the frame 1 is fixed with a hook 3, and the hook 3 is evenly distributed along the four corners of the frame 1, a side frame 4 is provided on one side of the frame 1, and two sets of side frames 4 are symmetrically arranged along the frame 1, a slot 5 is provided on the inner side of the side frame 4, and the hook 3 forms an engaging structure with the side frame 4 through the slot 5, and a second positioning hole 6 is provided on the outer surface of the side frame 4. A hook 3 is added to the outer side of the frame 1. The frame 1 is connected to the slot 5 on the inner side of the side frame 4 by the hook 3, which can fix the frame 1 and the side frame 4. This can effectively prevent the sound insulation pad from loosening or shifting during use, and ensure the stability of the sound insulation pad during installation. Positioning holes are opened on both the frame 1 and the side frame 4 to achieve stable installation and precise positioning, improve the use effect, increase the convenience of installation, increase the stability of the sound insulation pad, and extend the service life of the sound insulation pad.

[0032] A base plate 7 is provided below the frame 1. A first positioning post 8 is fixed on the upper end of the base plate 7, and the first positioning post 8 is adapted to the first positioning hole 2. A first threaded groove 9 is provided in the middle of the first positioning post 8, and a first fastening screw 10 passes through the middle of the first positioning hole 2. The frame 1 is fastened to the base plate 7 through the first fastening screw 10. A second positioning post 11 is fixed at the four corners of the base plate 7, and the second positioning post 11 is adapted to the second positioning hole 6. A second threaded groove 12 is provided in the middle of the second positioning post 11, and a second fastening screw 13 passes through the middle of the second positioning hole 6. The side frame 4 is fastened to the base plate 7 through the second fastening screw 13. A high-adhesion adhesive plate 14 is adhered to the bottom of the base plate 7. By designing a base plate 7 at the bottom of the frame 1, and installing a first positioning post 8 on the base plate 7, the first positioning post 8 engages with the first positioning hole 2 on the outer side of the frame 1, allowing the frame 1 to be accurately installed on the base plate 7, avoiding installation deviations, and engaging the side frame 4 with the frame 1. A second positioning post 11 on the other side of the base plate 7 is inserted into the second positioning hole 6 on the outer surface of the side frame 4 and fixed by a fastening screw, thus achieving a secure connection between the side frame 4 and the base plate 7, and between the frame 1 and the base plate 7. A high-adhesion adhesive sheet 14 is attached to the bottom of the base plate 7, adhering to the mounting surface and ensuring that the base plate 7 will not detach or move due to external forces. This not only improves the installation stability of the sound insulation pad but also provides a reliable guarantee for its long-term use.

[0033] A surface layer 15 is fixed to the inner side of the frame 1, and the surface layer 15 is made of plastic woven material. A moisture-proof and breathable layer 16 is fixed to the bottom of the surface layer 15, and the moisture-proof and breathable layer 16 is composed of silica gel desiccant. A sound-absorbing layer 17 is fixed to the bottom of the moisture-proof and breathable layer 16, and the sound-absorbing layer 17 is made of sound-absorbing cotton material. A bottom layer 18 is fixed to the bottom of the sound-absorbing layer 17, and the bottom layer 18 is made of glass fiber. A sound-insulating pad structure composed of a surface layer 15, a moisture-proof and breathable layer 16, a sound-absorbing layer 17, and a bottom layer 18 is designed on the inner side of the frame 1. The surface layer 15 is made of woven plastic, which has good wear resistance, tear resistance, and water resistance, effectively protecting the internal structure of the sound-insulating pad while providing an aesthetically pleasing appearance. The moisture-proof and breathable layer 16 is composed of silica gel desiccant, which has excellent moisture absorption properties, absorbing and locking in moisture to prevent it from penetrating the interior of the sound-insulating pad, thus keeping it dry and maintaining stable performance. The sound-absorbing layer 17 is made of sound-absorbing cotton, a highly efficient sound-absorbing material that absorbs and reduces sound transmission, improving sound insulation. The bottom layer 18 is made of fiberglass, which has high strength, wear resistance, and corrosion resistance, enhancing the structural strength and stability of the sound-insulating pad. The sound-insulating pad not only has excellent sound insulation but also possesses multiple advantages such as moisture resistance, breathability, wear resistance, and corrosion resistance, meeting the needs of various application scenarios.

[0034] Working Principle: For this type of car sound insulation pad with moisture-proof function, a sound insulation pad structure composed of a surface layer 15, a moisture-proof and breathable layer 16, a sound-absorbing layer 17, and a bottom layer 18 is designed on the inner side of the frame 1. The surface layer 15 is made of plastic woven material, which has good wear resistance, tear resistance, and water resistance, effectively protecting the internal structure of the sound insulation pad while providing an aesthetically pleasing appearance. The moisture-proof and breathable layer 16 is composed of silica gel desiccant, which has excellent moisture absorption properties, absorbing and locking in moisture to prevent it from penetrating into the interior of the sound insulation pad, thus keeping the sound insulation pad dry and stable in performance. The sound-absorbing layer 17 is made of sound-absorbing cotton, a highly efficient sound-absorbing material that can absorb and reduce sound transmission, improving the sound insulation effect. The bottom layer 18 is made of glass fiber, which has high strength, wear resistance, and corrosion resistance, enhancing the structural strength and stability of the sound insulation pad. The sound insulation pad not only has a good sound insulation effect but also has multiple advantages such as moisture-proof, breathable, wear-resistant, and corrosion-resistant properties, meeting the needs of different usage scenarios.

[0035] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car sound insulation pad with moisture-proof function, comprising a frame (1) and a first positioning hole (2), characterized in that: The side surface of the frame (1) is provided with a first positioning hole (2), the outer side of the frame (1) is fixed with a hook (3), and the hook (3) is evenly distributed along the four corners of the frame (1). A side frame (4) is provided on one side of the frame (1), and two sets of side frames (4) are symmetrically arranged along the frame (1). A slot (5) is provided on the inner side of the side frame (4), and the hook (3) forms a locking structure with the side frame (4) through the slot (5). A second positioning hole (6) is provided on the outer surface of the side frame (4).

2. The car sound insulation mat with moisture-proof function according to claim 1, characterized in that: A base plate (7) is provided below the frame (1), and a first positioning post (8) is fixed on the upper surface of the base plate (7), and the first positioning post (8) is adapted to the first positioning hole (2).

3. The car sound insulation mat with moisture-proof function according to claim 2, characterized in that: The first positioning post (8) has a first threaded groove (9) in the middle, the first positioning hole (2) has a first fastening screw (10) passing through the middle, and the frame (1) is fastened to the base plate (7) through the first fastening screw (10).

4. The car sound insulation mat with moisture-proof function according to claim 3, characterized in that: The base plate (7) is fixed with second positioning posts (11) at its four corners, and the second positioning posts (11) are adapted to the second positioning holes (6).

5. A car sound insulation mat with moisture-proof function according to claim 4, characterized in that: The second positioning post (11) has a second threaded groove (12) in the middle, and the second positioning hole (6) has a second fastening screw (13) passing through the middle. The side frame (4) is fastened to the bottom plate (7) through the second fastening screw (13). The bottom of the bottom plate (7) is adhered with a high-viscosity adhesive plate (14).

6. The car sound insulation mat with moisture-proof function according to claim 5, characterized in that: The inner side of the frame (1) is fixed with a surface layer (15), which is made of plastic woven material. The bottom of the surface layer (15) is fixed with a moisture-proof and breathable layer (16), which is composed of silica gel desiccant. The bottom of the moisture-proof and breathable layer (16) is fixed with a sound-absorbing layer (17), which is made of sound-absorbing cotton material. The bottom of the sound-absorbing layer (17) is fixed with a bottom layer (18), which is made of glass fiber.