Vehicle body sound insulation structure and vehicle

Abstract

The utility model discloses a vehicle body sound insulation structure and a vehicle, and relates to the technical field of automobiles. The vehicle body sound insulation structure comprises a vehicle body plate body, a sound insulation pad and a buckle piece, wherein a mounting hole is formed in the vehicle body plate body; the sound insulation pad covers the vehicle body plate body; the sound insulation pad is provided with a mounting hole, the buckling piece is arranged corresponding to the mounting hole, the buckling piece comprises a clamping cap and a clamping head which are connected, the clamping cap is connected to the sound insulation pad in a bonding mode, and the clamping head penetrates through and is clamped in the mounting hole. According to the vehicle body sound insulation structure, the risk of noise leakage can be reduced, and meanwhile firmness and stability of the sound insulation pad in the installation process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a vehicle body sound insulation structure and a vehicle. Background Art

[0002] Typically, car sound insulation pads rely on a fixed structure to adhere to the body's sheet metal. Some existing fixing methods inevitably require drilling holes in the sound insulation pad, which can cause noise to leak through these holes.

[0003] Therefore, there is room for improvement in car sound insulation pads. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the present invention is to provide a vehicle body sound insulation structure that can reduce the risk of noise leakage while ensuring the firmness and stability of the sound insulation pad during installation.

[0005] A second aspect of the present invention aims to provide a vehicle.

[0006] According to an embodiment of the first aspect of the present invention, a vehicle body sound insulation structure comprises: a vehicle body panel, a sound insulation pad, and a fastener. The vehicle body panel is provided with a mounting hole; the sound insulation pad covers the vehicle body panel; the fastener is disposed corresponding to the mounting hole and comprises a connected cap and a clamping head, the cap being adhesively connected to the sound insulation pad, and the clamping head being inserted through and clamped into the mounting hole.

[0007] According to the vehicle body sound insulation structure of the first embodiment of the present invention, a clip is bonded to the sound insulation pad, thereby achieving a secure connection between the sound insulation pad and the vehicle body panel. The clip is formed by providing a clip head and a clip cap, with the clip cap being bonded to the sound insulation pad, allowing the sound insulation pad to be quickly secured to the vehicle body panel. Furthermore, since the clip cap does not penetrate the sound insulation pad, it effectively avoids noise leakage caused by drilling holes in traditional fixing methods.

[0008] According to the vehicle body sound insulation structure of some embodiments of the present invention, the sound insulation pad is provided with a groove on the side facing the vehicle body panel, the groove is arranged corresponding to the mounting hole, and the card cap is bonded and connected in the groove.

[0009] In some optional embodiments, the projected area of ​​the card cap on the sound insulation pad is smaller than the area of ​​the groove, and the projected area of ​​the mounting hole on the sound insulation pad is smaller than the projected area of ​​the card cap on the sound insulation pad; and a colloid is adhered between the edge of the card cap and the side wall of the groove.

[0010] According to the vehicle body sound insulation structure of some embodiments of the present invention, the clamping cap is adhered to the sound insulation pad by hot melt adhesive.

[0011] According to the vehicle body sound insulation structure of some embodiments of the present invention, the clamping head includes: a fixing strip and a leaf piece, the fixing strip is extended along the axial direction of the mounting hole, and one end of the fixing strip is connected to the clamping cap in the length direction; the leaf piece is connected to the fixing strip, and the leaf pieces are multiple and are arranged at intervals along the length direction of the fixing strip.

[0012] In some optional embodiments, an extending direction of the blade and a length direction of the fixing bar form an angle.

[0013] Optionally, there are four fixing bars, which are vertically connected in pairs, and a leaf piece is connected between every two adjacent fixing bars.

[0014] Optionally, the clamping head further comprises: a frustum, the frustum is connected to an end of the fixing bar away from the clamping cap, and the diameter of the frustum gradually increases in a direction toward the clamping cap.

[0015] The vehicle according to the embodiment of the second aspect of the present utility model includes the vehicle body sound insulation structure according to the embodiment of the first aspect of the present utility model.

[0016] In some optional embodiments, the vehicle body panel is an engine cover, and a plurality of the fasteners are provided on the sound insulation pad; some of the fasteners are arranged in a circumferential manner along the edge of the sound insulation pad, and some of the fasteners are arranged in the center of the sound insulation pad.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a cross-sectional view of the vehicle body sound insulation structure in some embodiments of the present invention;

[0020] Figure 2 Schematic diagram of the positions of the mounting holes in the vehicle body panel in some embodiments of the present invention;

[0021] Figure 3 This is a structural diagram of a fastener in some embodiments of the present utility model;

[0022] Figure 4Schematic diagram of the position of the fastener on the sound insulation pad in some embodiments of the present invention;

[0023] Figure 5 This is another structural schematic diagram of the fastener in some embodiments of the present invention.

[0024] Reference numerals:

[0025] The vehicle body sound insulation structure 100 , the vehicle body panel 10 , the mounting hole 11 , the sound insulation pad 20 , the groove 21 , the fastener 30 , the cap 31 , the clamping head 32 , the fixing strip 321 , the blade 322 , and the round platform 323 . DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "axial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation and be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] Reference below Figure 1-Figure 5 A vehicle body sound insulation structure 100 according to an embodiment of the first aspect of the present invention will be described.

[0030] The vehicle body sound insulation structure 100 according to the first embodiment of the present utility model includes: a vehicle body panel 10 and a sound insulation pad 20 .

[0031] The sound insulation pad 20 is configured to completely or partially cover the surface of the vehicle body panel 10 , so as to improve the sound insulation effect of the vehicle body panel 10 and reduce noise transmission.

[0032] The vehicle body panel 10 may be a front hood of a vehicle or a structural panel of other parts of the vehicle. By arranging the sound insulation pad 20 on these vehicle body panels 10, the sound insulation performance of the vehicle can be improved, thereby providing a quieter and more comfortable riding environment for passengers.

[0033] In some optional embodiments, the sound insulation pad 20 is a laminated structure of a non-woven fabric layer-a polyurethane layer-a non-woven fabric layer.

[0034] As the outer layer of the sound insulation mat 20, the non-woven fabric provides protection, reinforcement, and aesthetics. Its strength and wear resistance provide resistance to environmental damage, such as UV rays and moisture, thereby extending the lifespan of the sound insulation mat 20. Furthermore, its excellent breathability helps reduce moisture accumulation and maintains the dryness and stability of the sound insulation mat 20.

[0035] In some optional embodiments, the outer nonwoven fabric is a rigid nonwoven fabric. Compared to soft nonwoven fabrics, rigid nonwoven fabrics have a thicker feel and higher strength. This not only makes the sound insulation mat 20 appear thicker and more substantial, but also enhances its sound insulation effect. Rigid nonwoven fabrics can better block sound penetration and reduce noise transmission, thereby improving vehicle ride comfort.

[0036] The polyurethane layer is the middle layer of the sound insulation mat 20. It provides sound insulation, heat insulation, and shock absorption. It also has a certain elasticity, which can absorb and disperse vibration energy, further reducing the generation and spread of noise.

[0037] Optionally, the thickness and density of the polyurethane layer can be adjusted according to specific sound insulation requirements, which is not specifically limited in this application.

[0038] The inner nonwoven fabric layer serves to adhere to and secure the vehicle body panel 10. This is due to its flexibility, allowing it to form a good fit with the vehicle body panel 10, reducing gaps and noise leakage. Furthermore, the inner nonwoven fabric layer provides additional sound insulation, further enhancing the overall performance of the sound insulation mat 20.

[0039] Combine Figure 1 In order to fix the sound insulation pad 20 to the vehicle body panel 10 , the vehicle body sound insulation structure 100 of the embodiment of the present invention further includes: a fastener 30 .

[0040] like Figure 2As shown, the vehicle body panel 10 is provided with a mounting hole 11 for fixing the fastener 30 .

[0041] Therefore, the locking member 30 is disposed corresponding to the mounting hole 11 .

[0042] like Figure 1 As shown, the fastener 30 includes a connected cap 31 and a clamping head 32 . The cap 31 is bonded to the sound insulation pad 20 , and the clamping head 32 is passed through and clamped in the mounting hole 11 .

[0043] Optionally, the cap 31 may be tightly adhered to the sound insulation pad 20 by an adhesive layer or other bonding techniques.

[0044] Through the bonding connection method, a tight connection can be ensured between the snap fastener 30 and the sound insulation pad 20. At the same time, this connection method can resist vibration to a certain extent, maintain the stability of the connection, and thus extend the service life of the sound insulation pad 20.

[0045] Furthermore, the bonding connection avoids the complex operations such as drilling and screw fixing that may be required in traditional installation methods, making the installation process simpler and faster.

[0046] Moreover, the tight bonding connection also reduces the gap between the sound insulation pad 20 and the vehicle body panel 10 to a certain extent, thereby reducing sound leakage and improving the sound insulation effect.

[0047] Optionally, bonding methods include but are not limited to bonding through double-sided tape, structural adhesive, and hot melt adhesive.

[0048] The size and shape of the clamp 32 match the size and shape of the mounting hole 11 in the vehicle body panel 10. This allows the clamp 32 to pass smoothly through the mounting hole 11. The clamp 32 may include a barb, expansion structure, or other locking mechanism. This locking mechanism effectively prevents the clamp 32 from accidentally falling off, thereby forming a stable and reliable connection between the clamp 32 and the mounting hole 11, thereby enhancing the stability and safety of the sound insulation mat 20 and the vehicle body panel 10.

[0049] By bonding the fastener 30 to the sound insulation pad 20 , the traditional method of punching holes in the sound insulation pad 20 can be abandoned.

[0050] First, avoiding drilling holes in the sound insulation mat 20 minimizes structural damage, thereby maximizing its original sound insulation performance. Drilling holes not only weakens the sound insulation effect of the mat 20 but also creates a potential channel for sound leakage, compromising the overall sound insulation quality. Adhesive bonding, on the other hand, ensures the integrity of the mat 20, effectively preventing sound leakage and providing a quieter ride for passengers.

[0051] Secondly, the cap 31 is bonded to the sound insulation pad 20 to avoid possible leakage of fasteners (such as screws, rivets, etc.), thereby improving the consistency of the interior of the vehicle body.

[0052] The core purpose of this application is to optimize the shape of the cap 31 to fully utilize its surface area, thereby maximizing the bonding area between the clip 30 and the sound insulation pad 20. Therefore, in this application, the shape of the cap 31 is very flexible and can be circular, semicircular, trapezoidal, or other polygonal or irregular shapes, without specific limitation. For example, see Figure 3 , the card cap 31 can also be rectangular.

[0053] According to some embodiments of the present invention, the vehicle body sound insulation structure 100 is combined with Figure 1 and Figure 4 The sound insulation pad 20 is provided with a groove 21 on the side facing the vehicle body panel 10 . The groove 21 is provided corresponding to the mounting hole 11 , and the card cap 31 is bonded and connected in the groove 21 .

[0054] In the above technical solution, grooves 21 are provided on the side of the sound insulation pad 20 facing the vehicle body panel 10 . The positions of these grooves 21 correspond to the mounting holes 11 preset on the vehicle body panel 10 .

[0055] Specifically, the cap 31 of the fastener 30 is bonded to the groove 21 of the sound insulation pad 20. Since the groove 21 corresponds to the mounting hole 11, when the sound insulation pad 20 is placed on the vehicle body panel 10, these grooves 21 naturally carry the clamp head 32 of the fastener 30 to point and be ready to penetrate into the mounting hole 11 of the vehicle body panel 10.

[0056] Optionally, after the sound insulation pad 20 is fixed to the vehicle body panel 10 , the surface of the cap 31 of the fastener 30 adjacent to the sound insulation pad 20 and the surface of the area of ​​the sound insulation pad 20 where the groove 21 is not provided tend to be flat.

[0057] Through this nearly planar setting, the fastener 30 can be prevented from protruding from the surface of the sound insulation pad 20, thereby reducing the gap between the sound insulation pad 20 and the vehicle body panel 10, and further reducing the gap between the fastener 30 or the sound insulation pad 20 and the vehicle body sheet metal, ensuring the sound insulation effect.

[0058] These clips 30 can be installed using a clip positioning fixture. First, the clips 30 are placed on a positioning jig. Next, a layer of glue is applied to the groove 21 of the sound insulation pad 20. A clamping device then applies downward pressure to the clips 30, firmly adhering them to the sound insulation pad 20. This installation process ensures the accurate positioning of each clip 30 and its corresponding mounting hole 11, ensuring that the clips 30 are accurately inserted into the mounting holes 11 on the vehicle body panel 10, ensuring the secure installation of the sound insulation pad 20 and providing stable sound insulation.

[0059] In some optional embodiments, the projected area of ​​the cap 31 on the sound insulation pad 20 is smaller than the area of ​​the groove 21 , and the projected area of ​​the mounting hole 11 on the sound insulation pad 20 is smaller than the projected area of ​​the cap 31 on the sound insulation pad 20 .

[0060] In the above-described technical solution, the cap 31 of the fastener 30 incorporates optimized dimensional proportions to ensure its stability and connection reliability. Specifically, the projected area of ​​the cap 31 on the surface of the sound insulation mat 20 is configured to be smaller than the area of ​​the groove 21. This design ensures that the cap 31 is securely embedded in the groove 21 during installation, eliminating the risk of installation problems due to excessive size.

[0061] At the same time, the projected area of ​​the mounting hole 11 on the sound insulation pad 20 is constructed to be smaller than the projected area of ​​the cap 31. This layout ensures that when the fastener 30 is installed, the larger cap 31 can completely cover the mounting hole 11, effectively preventing it from accidentally falling off from the mounting hole 11, thereby enhancing the connection firmness between the fastener 30 and the vehicle body panel 10, and thereby enhancing the connection firmness between the sound insulation pad 20 and the vehicle body panel 10.

[0062] In addition, the larger area of ​​the cap 31 can achieve wider and closer contact with the groove 21 on the sound insulation pad 20. This sufficient contact area further improves the stability of the connection and ensures the reliability and durability of the sound insulation structure.

[0063] The dimensional relationship between these components not only ensures that the cap 31 provides a stable support on one side of the mounting hole 11, but also prevents the clip 30 from easily falling out even after the clip head 32 passes through the mounting hole 11, due to the secure connection between the cap 31 and the sound insulation pad 20 and the size of the cap 31 itself. This not only improves the ease of installation between the clip 30 and the sound insulation pad 20, making it easier for operators to complete the installation, but also ensures the reliability and durability of the connection between the sound insulation pad 20 and the vehicle body panel 10.

[0064] Glue is adhered between the edge of the cap 31 and the sidewall of the groove 21 .

[0065] Once the cap 31 is installed in the groove 21, the colloid begins to exert its adhesive properties, tightly fitting the edge of the cap 31 to the sidewalls of the groove 21. As the colloid gradually solidifies and hardens, a secure and durable connection is formed between the cap 31 and the groove 21. This connection is not only strong enough to support the axial weight and load of the fastener 30, but also effectively prevents axial rotation of the fastener 30, enhancing the stability of the connection between the cap 31 and the groove 21 and reducing friction between the fastener 30 and the edge of the mounting hole 11. This reduces wear on the fastener 30 caused by the mounting hole 11 and increases the service life of the fastener 30.

[0066] When the fastener 30 is installed on the vehicle body panel 10, the presence of the colloid can also fill the tiny gap that may exist between the mounting hole 11 and the sound insulation pad 20 to a certain extent, thereby ensuring that the sound insulation pad 20 can continuously and stably exert its sound insulation effect and provide continuous quiet protection for the vehicle interior.

[0067] According to the vehicle body sound insulation structure 100 of some embodiments of the present invention, the clamping cap 31 is glued to the sound insulation pad 20 by hot melt adhesive.

[0068] Hot melt adhesive is used as a connecting medium between the clamping cap 31 and the sound insulation pad 20 to achieve a firm connection between the two.

[0069] It is known that hot melt adhesive is an efficient and environmentally friendly adhesive with the characteristics of fast curing, high strength and good sealing.

[0070] During the manufacturing process, a layer of hot melt adhesive is evenly applied to the groove 21 of the sound insulation pad 20. Subsequently, a special clamping device is used to apply downward pressure to the clip 30 to ensure that the clip 30 can be tightly combined with the sound insulation pad 20. In this way, the clip cap 31 is not only accurately fixed to the sound insulation pad 20, but the connection between the two is also stable and durable.

[0071] Furthermore, the hot melt adhesive connection simplifies the installation process and reduces operational difficulty, thereby ensuring the reliability and long-term stability of the connection between the cap 31 and the sound insulation pad 20, thereby helping to improve the sound insulation performance of the entire vehicle body sound insulation structure 100.

[0072] According to some embodiments of the present invention, the vehicle body sound insulation structure 100 is combined with Figure 1 and Figure 5 The clamping head 32 includes a fixing bar 321 and blades 322. The fixing bar 321 extends axially along the mounting hole 11, and one end of the fixing bar 321 is connected to the clamping cap 31 in the longitudinal direction. The blades 322 are connected to the fixing bar 321. There are multiple blades 322 and they are spaced apart along the length of the fixing bar 321.

[0073] First, the fixing strip 321, as the main structure of the clamp 32, is configured to extend along the axial direction of the mounting hole 11. This means that the length direction of the fixing strip 321 is consistent with the axial direction of the mounting hole 11, thus ensuring that the clamp 32 can be accurately inserted and fixed in the mounting hole 11 during installation.

[0074] Secondly, the blades 322 are connected to the fixing bar 321 and are in multiple numbers. These blades 322 are arranged at intervals along the length direction of the fixing bar 321. Here, the length direction of the fixing bar 321 is the same as the axial direction of the mounting hole 11.

[0075] The shape and size of the blade 322 can be adjusted according to actual needs to adapt to the installation of different installation holes 11.

[0076] In some optional embodiments, an extending direction of the leaf piece 322 and a length direction of the fixing bar 321 form an angle.

[0077] See Figure 5 The blades 322 are arranged to extend in an inclined manner.

[0078] The inclined blades 322 allow the clamp 32 to slightly bend and adapt along the sidewalls of the mounting hole 11 when the clamp 32 enters the mounting hole 11, thereby more easily passing through the mounting hole 11. This design reduces installation difficulty, improves installation efficiency, and reduces potential damage to the mounting hole 11 during installation.

[0079] Once the clamp 32 successfully passes through the mounting hole 11 and reaches the predetermined position, the blade 322 returns to its original shape and tightly abuts against one side of the vehicle body panel 10. At this point, the blade 322 acts as a stop, preventing the clamp 32 from falling out of the mounting hole 11. This design not only enhances the stability of the clamp 32 but also ensures that the sound insulation mat 20 can continue to exert its sound insulation effect stably.

[0080] Optionally, combined Figure 5 There are four fixing bars 321 , which are vertically connected in pairs, and a leaf piece 322 is connected between every two adjacent fixing bars 321 .

[0081] In the above technical solution, the four fixing bars 321 are configured to intersect perpendicularly in pairs. This mutually perpendicular structure helps distribute and resist the various forces and pressures that may arise during installation and use. Whether it is the squeezing force from the mounting hole 11 or the torsional or tensile forces that may be encountered during use, this structure composed of four fixing bars 321 can effectively cope with them. By improving the axial stability of the fixing bars 321, the connection between the sound insulation pad 20 and the vehicle body panel 10 is enhanced.

[0082] Between each pair of adjacent fixing bars 321, blades 322 serve as a connecting and supporting structure. These blades 322 not only help strengthen the mutual support between adjacent fixing bars 321, but also provide a certain degree of stability for the fixing bars 321 themselves, preventing damage to the blades 322 to a certain extent. This collaborative design enhances the overall structural stability of the clamp 32, ensuring its robustness under various stress conditions.

[0083] Optionally, the clamping head 32 further includes a round platform 323 . The round platform 323 is connected to an end of the fixing bar 321 away from the clamping cap 31 , and the diameter of the round platform 323 gradually increases in a direction toward the clamping cap 31 .

[0084] Optionally, the frustum 323 forms a conical or stepped structure.

[0085] Then, when installing the clamping head 32, the small diameter end of the round platform 323 faces the mounting hole 11. Due to its gradually increasing diameter, the round platform 323 can easily guide the clamping head 32 into the mounting hole 11. This guiding effect can reduce the difficulty of installation and improve installation efficiency.

[0086] Secondly, the truncated cone 323 can also enhance the stability of the clamping head 32 . The large diameter portion of the truncated cone 323 is connected to and fixed on the fixing bar 321 , thereby improving the torsion resistance of the fixing bar 321 .

[0087] In some optional embodiments, the fastener 30 is made of a thermoplastic resin. First, thermoplastic resins have excellent thermoplasticity and processability. This means they can be softened and reshaped at high temperatures, making them easy to process into the desired shape and size of the fastener 30. Furthermore, thermoplastic resins are relatively simple to mold and can be efficiently produced through processes such as injection molding and extrusion, helping to improve production efficiency and reduce costs.

[0088] Secondly, thermoplastic resin materials have excellent mechanical properties and chemical resistance. Therefore, the clip 30 made of thermoplastic resin can withstand certain pressures and loads without deformation or cracking. Furthermore, thermoplastic resin materials also have a certain degree of corrosion resistance, which can maintain the stability of the clip 30 during use. This makes the clip 30 less susceptible to external environmental influences during use, ensuring its long-term stability and reliability.

[0089] The vehicle according to the embodiment of the second aspect of the present invention includes the vehicle body sound insulation structure 100 according to the embodiment of the first aspect of the present invention.

[0090] By integrating the vehicle body sound insulation structure 100 of the first embodiment of the present utility model, the sound insulation performance of the vehicle can be improved, providing passengers with a quieter riding experience.

[0091] It is worth noting that the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.

[0092] In some optional embodiments, the vehicle body panel 10 is an engine hood, and a plurality of fasteners 30 are provided on the sound insulation pad 20. Some of the fasteners 30 are arranged circumferentially and spaced apart along the edge of the sound insulation pad 20, and some of the fasteners 30 are arranged in the center of the sound insulation pad 20.

[0093] When the vehicle is a fuel vehicle, it has an engine. In this case, the vehicle body panel 10 serves as an engine cover. By arranging a sound insulation pad 20 on the engine cover, the noise emitted by the engine can be reduced.

[0094] The sound insulation pad 20 is provided with a plurality of fasteners 30 . Some of the fasteners 30 are arranged at intervals along the edge of the sound insulation pad 20 in a circumferential direction, and some of the fasteners 30 are arranged in the center of the sound insulation pad 20 .

[0095] First, some of the clips 30 are arranged circumferentially and spaced along the edge of the sound insulation mat 20. This arrangement ensures that the edge of the sound insulation mat 20 can fit snugly against the edge of the engine hood, forming a continuous sound barrier. The circumferential spacing of these edge clips 30 ensures stability and accuracy during installation of the sound insulation mat 20 while avoiding installation difficulties or material waste caused by overly dense clips 30. This layout also helps prevent noise from leaking through the gap between the sound insulation mat 20 and the engine hood, further enhancing the sound insulation effect.

[0096] In addition to the edge clips 30, a further portion of clips 30 are positioned in the center of the sound insulation mat 20. These central clips 30 strengthen the securing effect of the sound insulation mat 20 in the central area. Because the central area of ​​the engine hood is subject to certain vibrations and impacts, increasing the number and density of clips 30 in this area enhances the stability and durability of the sound insulation mat 20, ensuring that it does not fall off or shift.

[0097] Reference below Figure 1 - Figure 5 The vehicle body sound insulation structure 100 according to the embodiment of the present invention is described in detail with reference to a specific embodiment. It is worth noting that the following description is merely an illustrative illustration and does not specifically limit the present invention.

[0098] Reference Figure 1The vehicle body sound insulation structure 100 includes: a vehicle body panel 10 , a sound insulation pad 20 and a fastener 30 .

[0099] Reference Figure 2 The vehicle body panel 10 is provided with a mounting hole 11 .

[0100] The sound insulation pad 20 covers the vehicle body panel 10 .

[0101] The fastener 30 is disposed corresponding to the mounting hole 11 .

[0102] Reference Figure 3 The fastener 30 includes a connected cap 31 and a clamping head 32 . The cap 31 is bonded to the sound insulation pad 20 , and the clamping head 32 is passed through and clamped in the mounting hole 11 .

[0103] Reference Figure 4 The sound insulation pad 20 is provided with a groove 21 on the side facing the vehicle body panel 10 . The groove 21 is provided corresponding to the mounting hole 11 , and the card cap 31 is bonded and connected in the groove 21 .

[0104] The projected area of ​​the cap 31 on the sound insulation pad 20 is smaller than the area of ​​the groove 21 , and the projected area of ​​the mounting hole 11 on the sound insulation pad 20 is smaller than the projected area of ​​the cap 31 on the sound insulation pad 20 .

[0105] The cap 31 is glued to the sound insulation pad 20 by hot melt adhesive. Glue is glued between the edge of the cap 31 and the side wall of the groove 21.

[0106] Reference Figure 1 and Figure 5 The clamping head 32 includes a fixing bar 321 , a leaf piece 322 and a round table 323 .

[0107] The fixing bar 321 extends axially along the mounting hole 11 , and one end of the fixing bar 321 is connected to the cap 31 in the longitudinal direction. A plurality of leaf pieces 322 are connected to the fixing bar 321 and are spaced apart along the longitudinal direction of the fixing bar 321 .

[0108] An angle is formed between the extending direction of the leaf piece 322 and the length direction of the fixing bar 321 .

[0109] There are four fixing bars 321 , which are vertically connected in pairs. A leaf piece 322 is connected between every two adjacent fixing bars 321 .

[0110] The truncated cone 323 is connected to an end of the fixing bar 321 away from the locking cap 31 , and the diameter of the truncated cone 323 gradually increases in a direction toward the locking cap 31 .

[0111] Other components of the vehicle body sound insulation structure 100 according to the embodiment of the present invention, such as the vehicle and the operation thereof, are well known to those skilled in the art and will not be described in detail here.

[0112] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0113] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle body sound insulation structure, characterized in that: include: A vehicle body panel, wherein the vehicle body panel is provided with a mounting hole; a sound insulation pad, the sound insulation pad covering the vehicle body panel; A fastener is provided corresponding to the mounting hole, and the fastener comprises a connected cap and a clamping head, the cap is adhesively connected to the sound insulation pad, and the clamping head is passed through and clamped in the mounting hole.

2. The vehicle body sound insulation structure according to claim 1, characterized in that: The sound insulation pad is provided with a groove on a side facing the vehicle body panel, the groove is arranged corresponding to the mounting hole, and the card cap is bonded and connected in the groove.

3. The vehicle body sound insulation structure according to claim 2, characterized in that: The projected area of ​​the clamping cap on the sound insulation pad is smaller than the area of ​​the groove, and the projected area of ​​the mounting hole on the sound insulation pad is smaller than the projected area of ​​the clamping cap on the sound insulation pad; Colloid is adhered between the edge of the cap and the side wall of the groove.

4. The vehicle body sound insulation structure according to claim 1, characterized in that: The card cap is glued to the sound insulation pad by hot melt adhesive.

5. The vehicle body sound insulation structure according to claim 1, characterized in that: The clamping head comprises: A fixing bar extending along the axial direction of the mounting hole, wherein one end of the fixing bar is connected to the clamping cap in the longitudinal direction; The leaf pieces are connected to the fixing bar, and there are a plurality of leaf pieces arranged at intervals along the length direction of the fixing bar.

6. The vehicle body sound insulation structure according to claim 5, characterized in that: An angle is formed between the extending direction of the blade and the length direction of the fixing bar.

7. The vehicle body sound insulation structure according to claim 5, characterized in that: There are four fixing bars, which are vertically connected in pairs, and the leaf pieces are connected between every two adjacent fixing bars.

8. The vehicle body sound insulation structure according to claim 5, characterized in that: The clamping head further comprises a frustum connected to an end of the fixing bar away from the clamping cap, and the diameter of the frustum gradually increases in a direction toward the clamping cap.

9. A vehicle, characterized in that: The vehicle body sound insulation structure comprises the vehicle body sound insulation structure according to any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that The vehicle body panel is an engine cover, and the sound insulation pad is provided with a plurality of the fasteners; Some of the fasteners are arranged at intervals in a circumferential direction along the edge of the sound insulation pad, and some of the fasteners are arranged in the center of the sound insulation pad.

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