A soundproof board for a vehicle, a front engine compartment, a vehicle body structure, and a vehicle

Abstract

The utility model discloses vehicle technical field especially relates to a sound insulation board for vehicle, front engine compartment, car body structure and vehicle. Sound insulation board for vehicle includes baffle and connecting piece, and the circumferential outer edge of baffle is used for connecting with the inner wall of triangular window cavity of the front engine compartment of vehicle. Connecting piece is connected with baffle and sets up in the front engine compartment. The front engine compartment, car body structure and vehicle include above-mentioned sound insulation board for vehicle, and baffle sets up in triangular window cavity to cut off the transmission path of noise in triangular window cavity, improves sound insulation and noise reduction effect. Baffle is installed in triangular window cavity through connecting piece, and the installation difficulty of sound insulation board for vehicle is reduced, and installation efficiency and installation stability are improved, and simultaneously avoid sound insulation board for vehicle or its installation accessories to expose on the outside of front end cover plate.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a sound insulation panel for vehicles, a front engine compartment, a body structure, and a vehicle. Background Technology

[0002] In the front engine compartment of the vehicle, the rear section of the engine compartment side beam, the front cover of the side panel of the vehicle body, and the front side of the outer panel of the side panel of the vehicle body form a sheet metal cavity (i.e., a triangular window cavity). The triangular window cavities on the left and right sides of the front engine compartment are located above the two front wheels, which makes the tire hollow noise in the triangular window cavity relatively large, resulting in poor uniformity of sound insulation in the front row of the vehicle.

[0003] Currently, sound insulation panels are typically installed within the triangular window cavity using a snap-fit ​​structure to block noise transmission and achieve sound insulation and noise reduction. However, because the joint between the front cover and the side panel is a multi-layered board structure, misalignment of the openings can easily occur, increasing the difficulty of installing the snap-fit ​​structure on the sound insulation panel. Furthermore, the snap-fit ​​structure of the sound insulation panel is exposed on the outside of the front cover, affecting subsequent assembly operations in the forward engine compartment. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle sound insulation panel, a front engine compartment, a body structure, and a vehicle, so as to reduce the installation difficulty of the vehicle sound insulation panel, improve the installation efficiency, and at the same time avoid the vehicle sound insulation panel being exposed on the outside of the front cover.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A sound insulation panel for vehicles, the sound insulation panel for vehicles comprising:

[0007] A baffle, the outer circumferential edge of which is used to connect with the inner wall of the triangular window cavity of the front engine compartment of the vehicle;

[0008] A connecting piece, which is connected to the baffle and disposed in the front engine compartment.

[0009] As an optional solution for vehicle sound insulation panels, the baffle includes:

[0010] A skeleton, wherein the connecting piece is disposed on the skeleton, and the outer periphery of the skeleton is spaced apart from the inner wall of the triangular window cavity;

[0011] A foamed layer is provided on the circumferential edge of the skeleton, and the foamed layer can be sealed to the inner wall of the triangular window cavity after foaming.

[0012] As an optional solution for vehicle sound insulation panels, the connecting piece includes a connecting part and a welding part. One end of the connecting part is connected to the welding part in an L-shape, and the other end of the connecting part is integrally injection molded with the frame. The welding part is attached to and welded to the inner wall of the triangular window cavity.

[0013] As an optional solution for vehicle sound insulation panels, welding positioning holes are provided at the diagonal positions of the frame.

[0014] As an optional solution for vehicle sound insulation panels, the frame is provided with a receiving groove, the welding positioning hole is located in the receiving groove, and part of the foam layer is filled in the receiving groove.

[0015] As an optional solution for vehicle sound insulation panels, the baffle is provided with at least two connecting pieces spaced apart along the height direction of the vehicle.

[0016] The front engine compartment includes the aforementioned vehicle sound insulation panel, which is disposed within the front engine compartment.

[0017] As an optional solution for the front engine compartment, the connecting piece of the vehicle sound insulation panel is welded to the inner wall of the triangular window cavity of the front engine compartment, and the circumferential outer edge of the vehicle sound insulation panel is sealed to the inner wall of the triangular window cavity. The vehicle sound insulation panel divides the triangular window cavity into two cavities arranged along the length of the vehicle.

[0018] The vehicle body structure includes the aforementioned front engine compartment.

[0019] Vehicles, including the aforementioned body structure.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides a vehicle sound insulation panel, a front engine compartment, a body structure, and a vehicle. By installing a baffle inside the triangular window cavity, with the outer edge of the baffle connected to the inner wall of the triangular window cavity, the transmission path of noise within the triangular window cavity is isolated, improving sound insulation and noise reduction. The baffle is installed inside the triangular window cavity via a connecting piece, eliminating the need for drilling holes at the joint between the front cover and the side panel, reducing the installation difficulty of the vehicle sound insulation panel, improving installation efficiency and stability, and preventing the vehicle sound insulation panel or its installation accessories (such as snap-fit ​​structures) from being exposed on the outside of the front cover, thus solving the problem of the vehicle sound insulation panel being visible on the front cover. Attached Figure Description

[0022] Figure 1 This is a partial structural diagram of the exterior of the forward engine compartment provided in an embodiment of the present invention;

[0023] Figure 2This is a partial structural diagram of the interior of the forward engine compartment provided in an embodiment of the present invention;

[0024] Figure 3 This is a partial structural diagram of a vehicle sound insulation panel installed on a front cover plate according to an embodiment of the present invention.

[0025] In the picture:

[0026] 10. Triangular window cavity; 1. Cabin side beam; 2. Front end cover plate; 3. Side outer panel; 4. Lower support plate; 5. Vehicle sound insulation panel; 51. Baffle; 511. Frame; 5111. Welding positioning hole; 5112. Receiving groove; 5113. Liquid passage hole; 512. Foam layer; 52. Connecting piece. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] like Figure 1 and Figure 2 As shown, this embodiment proposes a front engine compartment, which is the front engine compartment of the vehicle body structure. The rear section of the engine compartment side beam 1, the front cover plate 2, the side outer panel 3, and the lower support plate 4 in the A-pillar reinforcement plate together form a triangular window cavity 10. The triangular window cavities 10 on the left and right sides of the front engine compartment are located above the two front wheels, resulting in a large amount of hollow sound in the triangular window cavity 10 area, which leads to poor uniformity of sound insulation in the front row of the vehicle.

[0032] Currently, sound insulation panels are typically installed within the triangular window cavity using a snap-fit ​​structure to block noise transmission and achieve sound insulation and noise reduction. However, because the joint between the front cover and the side panel is a multi-layered board structure, misalignment of the openings can easily occur, increasing the difficulty of installing the snap-fit ​​structure on the sound insulation panel. Furthermore, the snap-fit ​​structure of the sound insulation panel is exposed on the outside of the front cover, affecting subsequent assembly operations in the forward engine compartment.

[0033] To solve the above problems, such as Figure 2 and Figure 3 As shown, this embodiment also proposes a vehicle sound insulation panel 5, which includes a baffle 51 and a connecting piece 52. The outer circumferential edge of the baffle 51 is used to connect with the inner wall of the triangular window cavity 10. The connecting piece 52 is connected to the baffle 51 and is disposed in the front engine compartment. The outer circumferential edge of the baffle 51 is connected with the inner wall of the triangular window cavity 10 to isolate the transmission path of noise in the triangular window cavity 10 and improve the sound insulation and noise reduction effect. The baffle 51 is installed in the triangular window cavity 10 through the connecting piece 52, eliminating the need to drill holes at the joint between the front cover 2 and the side outer panel 3, reducing the installation difficulty of the vehicle sound insulation panel 5, improving installation efficiency and stability, and preventing the vehicle sound insulation panel 5 or its installation accessories (such as snap-fit ​​structures) from being exposed on the outside of the front cover 2, thus solving the problem of the vehicle sound insulation panel 5 being visible on the front cover 2.

[0034] Specifically, the vehicle sound insulation panel 5 is welded to the inner wall of the triangular window cavity 10 via a connecting piece 52. The outer circumferential edge of the vehicle sound insulation panel 5 is sealed to the inner wall of the triangular window cavity 10, dividing the triangular window cavity 10 into two cavities arranged along the length of the vehicle (front-rear direction in the figure), thereby isolating the transmission path of noise within the triangular window cavity 10 and improving the sound insulation and noise reduction effect. The connecting piece 52 is welded to the inner side of the front cover plate 2, so that the vehicle sound insulation panel 5 and the front cover plate 2 are welded together as one unit, so as to realize the synchronous installation of the front cover plate 2 and the vehicle sound insulation panel 5, improving the installation efficiency of the front engine compartment.

[0035] Specifically, the baffle 51 is provided with at least two connecting pieces 52 spaced apart along the height direction of the vehicle (vertical direction in the figure), so that there are at least two weld points between the vehicle sound insulation panel 5 and the front cover plate 2, thereby improving the welding strength of the vehicle sound insulation panel 5. In other embodiments, the number and welding position of the connecting pieces 52 can be flexibly adjusted according to the assembly requirements of the front engine compartment.

[0036] like Figure 3 As shown, the baffle 51 includes a frame 511 and a foam layer 512. A connecting piece 52 is disposed on the frame 511, and the outer periphery of the frame 511 is spaced apart from the inner wall of the triangular window cavity 10. A foam layer 512 is disposed on the circumferential edge of the frame 511, and the foam layer 512, after foaming, can be sealed to the inner wall of the triangular window cavity 10. By setting the frame 511 to support the foam layer 512, the structural strength and installation stability of the vehicle sound insulation panel 5 are improved. The foam layer 512 expands after being baked at high temperature, allowing it to expand and deform according to the contour of the inner wall of the triangular window cavity 10. This ensures that the expanded foam layer 512 is completely attached and bonded to the inner wall of the triangular window cavity 10, filling the gap between the outer periphery of the frame 511 and the inner wall of the triangular window cavity 10, thereby improving the installation stability and sound insulation effect of the vehicle sound insulation panel 5.

[0037] It should be noted that the skeleton 511 is preferably polyhexamethylene adipamide, commonly known as nylon-66, a thermoplastic resin with advantages such as high mechanical strength, high hardness, and high rigidity. The foam layer 512 is preferably ethylene-vinyl acetate copolymer (EVA). The foam layer 512 formed after EVA foaming has a closed-cell structure, which gives the foam layer 512 good sound insulation effect. In other embodiments, the skeleton 511 and the foam layer 512 can also be made of other materials, as long as they can achieve the sound insulation and noise reduction effect, and no specific limitation is made here.

[0038] Specifically, such as Figure 2 and Figure 3As shown, the connecting piece 52 includes a connecting portion and a welding portion. One end of the connecting portion is connected to the welding portion in an L-shape, and the other end of the connecting portion is integrally injection molded to the frame 511. The welding portion is attached to and welded to the inner wall of the triangular window cavity 10. The connecting piece 52 is a metal sheet, such as a copper sheet or a thin stainless steel sheet, to facilitate welding and bending. By setting the connecting piece 52 to an L-shaped structure, one end of the connecting portion is integrally connected to the frame 511 through injection molding, improving the connection strength between the frame 511 and the connecting piece 52, thereby improving the structural strength of the vehicle sound insulation panel 5. At the same time, the welding portion is attached to the inner side of the front cover plate 2, facilitating spot welding of the welding portion to the inner side of the front cover plate 2 and improving welding efficiency.

[0039] like Figure 3 As shown, welding positioning holes 5111 are provided at diagonal positions of the frame 511. These holes position the frame 511, ensuring a stable welding position during welding of the front cover plate 2 and preventing positional displacement, thus improving welding quality. In this embodiment, the frame 511 is roughly rectangular, with two welding positioning holes 5111 along its diagonal direction for joint welding positioning. In other embodiments, the number and arrangement of the welding positioning holes 5111 can be flexibly adjusted according to the welding conditions.

[0040] like Figure 3 As shown, the frame 511 also has liquid passage holes 5113, so that the solution in the electrophoresis pool can pass through the frame 511 through the liquid passage holes 5113 during the electrophoresis process in the painting workshop, thus ensuring the electrophoresis effect of the frame 511. It should be noted that after the foam layer 512 is baked at high temperature, it will fill and seal the liquid passage holes 5113 and the welding positioning holes 5111 to ensure the sound insulation effect of the vehicle sound insulation panel 5.

[0041] Furthermore, such as Figure 3 As shown, a receiving groove 5112 is formed on the frame 511, and a welding positioning hole 5111 is located in the receiving groove 5111. Part of the foam layer 512 is filled in the receiving groove 5112. By forming the receiving groove 5112 on the frame 511, part of the foam layer 512 expands and fills the receiving groove 5112, thereby improving the connection strength between the foam layer 512 and the frame 511, and increasing the thickness of the foam layer 512, further improving the sound insulation and noise reduction effect.

[0042] This embodiment also proposes a vehicle body structure, which includes the aforementioned front engine compartment. By welding the vehicle sound insulation panel 5 into the triangular window cavity 10, the transmission path of noise within the triangular window cavity 10 is isolated, thereby improving the sound insulation and noise reduction effect. Simultaneously, it eliminates the need for drilling holes at the joint between the front cover 2 and the side outer panel 3, reducing the installation difficulty of the vehicle sound insulation panel 5, improving installation efficiency, and resolving the issue of the vehicle sound insulation panel 5 or its installation accessories (such as clip structures) being visible on the front cover 2.

[0043] This embodiment also proposes a vehicle including the aforementioned body structure. By welding the vehicle sound insulation panel 5 into the triangular window cavity 10, the transmission path of noise within the triangular window cavity 10 is isolated, thereby improving the sound insulation and noise reduction effect. Simultaneously, it eliminates the need for drilling holes at the joint between the front cover 2 and the side outer panel 3, reducing the installation difficulty of the vehicle sound insulation panel 5, improving installation efficiency, and solving the problem of the vehicle sound insulation panel 5 or its installation accessories (such as snap-fit ​​structures) being visible on the front cover 2.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sound insulation panel for vehicles, characterized in that, The vehicle sound insulation panel (5) includes: A baffle (51), the outer edge of which is used to connect with the inner wall of the triangular window cavity (10) of the front engine compartment of the vehicle; A connecting piece (52) is connected to the baffle (51) and disposed in the front engine compartment.

2. The vehicle sound insulation panel according to claim 1, characterized in that, The baffle (51) includes: A skeleton (511) is provided, and the connecting piece (52) is disposed on the skeleton (511). The outer periphery of the skeleton (511) is spaced apart from the inner wall of the triangular window cavity (10). A foam layer (512) is provided on the circumferential edge of the skeleton (511), and the foam layer (512) can be sealed to the inner wall of the triangular window cavity (10) after foaming.

3. The vehicle sound insulation panel according to claim 2, characterized in that, The connecting piece (52) includes a connecting part and a welding part. One end of the connecting part is connected to the welding part in an L-shape. The other end of the connecting part is integrally injection molded with the skeleton (511). The welding part is attached to and welded to the inner wall of the triangular window cavity (10).

4. The vehicle sound insulation panel according to claim 2, characterized in that, The frame (511) has welding positioning holes (5111) at diagonal positions.

5. The vehicle sound insulation panel according to claim 4, characterized in that, The skeleton (511) has a receiving groove (5112), the welding positioning hole (5111) is located in the receiving groove (5111), and part of the foam layer (512) is filled in the receiving groove (5112).

6. The vehicle sound insulation panel according to any one of claims 1 to 5, characterized in that, The baffle (51) is provided with at least two connecting pieces (52) at intervals along the height direction of the vehicle.

7. The forward engine compartment, characterized in that, The front engine compartment includes a vehicle sound insulation panel (5) as described in any one of claims 1 to 6.

8. The forward engine compartment according to claim 7, characterized in that, The connecting piece (52) of the vehicle sound insulation plate (5) is welded to the inner wall of the triangular window cavity (10) of the front engine compartment, and the outer edge of the vehicle sound insulation plate (5) is sealed to the inner wall of the triangular window cavity (10). The vehicle sound insulation plate (5) divides the triangular window cavity (10) into two cavities arranged along the length of the vehicle.

9. The vehicle body structure, characterized in that, Includes the forward engine compartment as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the vehicle body structure as described in claim 9.

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