Soundproofing structure, floor and vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-01
- Publication Date
- 2026-07-14
Smart Images
Figure CN122379435A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sound insulation technology, and in particular to a sound insulation structure, floor, and vehicle. Background Technology
[0002] In related technologies, hollow core panels are commonly used as sound insulation structures in the field of sound insulation. However, hollow core panels in these technologies cannot simultaneously achieve lightweight, wide bandwidth, and high sound insulation performance, especially with poor sound insulation in the low-frequency range. Therefore, improvements are needed. Summary of the Invention
[0003] This application provides a sound insulation structure that can improve the sound insulation effect of the sound insulation structure in the low frequency band, and can take into account lightweight, wide bandwidth and high sound insulation performance.
[0004] This application also proposes a floor having the above-mentioned sound insulation structure.
[0005] This application also proposes a vehicle having the aforementioned floor.
[0006] A sound insulation structure according to a first aspect of this application includes: a sound insulation board having a plurality of spaced-apart sound insulation cavities formed therein, the sound insulation board including a first surface and a second surface disposed opposite to each other along the thickness direction of the sound insulation board; and a reinforcing bracket fixed to the first surface and / or the second surface.
[0007] According to the sound insulation structure of this application embodiment, by setting a reinforcing bracket on the sound insulation board with a sound insulation cavity, the bending stiffness of the sound insulation structure can be improved, the vibration mode of the sound insulation structure can be reconstructed, and a portion of the vibration mode can be suppressed, thereby suppressing low-frequency sound radiation from the source, solving the sound insulation trough caused by modal vibration in traditional sound insulation structures, improving the sound insulation effect in the low-frequency band, and while maintaining the overall weight advantage, it also has good structural rigidity and wide-band sound insulation stability, realizing the synergistic optimization of structural vibration reduction and sound insulation performance, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0008] According to some embodiments of this application, there are multiple reinforcing brackets, and at least some of the reinforcing brackets are spaced apart circumferentially along the sound insulation plate.
[0009] In the above technical solution, by setting multiple reinforcing supports and arranging them circumferentially along the sound insulation board, the bending stiffness of the sound insulation structure can be improved, the harmful vibration modes of large-size sound insulation structures can be suppressed, and the low-frequency sound radiation path can be blocked. By optimizing the arrangement of multiple reinforcing supports, the sound insulation effect in the low-frequency band can be improved while maintaining the sound insulation effect in the mid-to-high frequency band. It can also maintain the overall weight advantage, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0010] According to some embodiments of this application, a plurality of the reinforcing brackets are fixed to the first surface, the reinforcing brackets having a connecting surface facing and connected to the first surface, and the distance between the center of the connecting surface and the center of the first surface is greater than the minimum distance between the center of the connecting surface and the outer edge of the first surface.
[0011] In the above technical solution, by fixing multiple reinforcing brackets to the first surface and ensuring that the distance between the center of the connecting surface and the center of the first surface is greater than the minimum distance between the center of the connecting surface and the outer edge of the first surface, the reinforcing brackets can be positioned closer to the outer edge of the sound insulation board relative to the center of the sound insulation board. This improves the bending stiffness of the sound insulation structure when the number of reinforcing brackets is fixed, effectively suppressing harmful vibration modes of large-size sound insulation structures and blocking their low-frequency sound radiation paths. Furthermore, by optimizing the arrangement of multiple reinforcing brackets, the sound insulation effect in the low-frequency band can be improved while maintaining the sound insulation effect in the mid-to-high frequency band. It also maintains the overall weight advantage, achieving a balance between lightweight, wide bandwidth, and high sound insulation performance.
[0012] According to some embodiments of this application, the sound insulation board is a regular polygon with a side length of L, the distance between the center of the connecting surface and the center of the first surface is R, and the ratio of R to L ranges from 0.25 to 0.5.
[0013] In the above technical solution, by setting the distance R between the center of the connecting surface and the center of the first surface to 0.25L to 0.5L, precise control of sound insulation performance and structural stability can be achieved.
[0014] According to some embodiments of this application, the absolute value of the difference between the center of the connecting surface of any two of the reinforcing brackets and the center of the first surface is less than 10 mm.
[0015] In the above technical solution, by making the absolute value of the difference between the center of the connecting surface of any two reinforcing brackets and the center of the first surface less than 10mm, the distance between the multiple reinforcing brackets and the center of the sound insulation board can be made close. This can effectively suppress the harmful vibration modes of large-size sound insulation structures and block their low-frequency sound radiation paths. At the same time, by optimizing the arrangement of multiple reinforcing brackets, the sound insulation effect in the low-frequency band can be improved while maintaining the sound insulation effect in the mid-to-high frequency band. It can also maintain the overall weight advantage, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0016] According to some embodiments of this application, each of the reinforcing brackets includes a plurality of reinforcing plates, with adjacent reinforcing plates arranged at an angle, and one of the reinforcing plates having a connecting surface facing the sound insulation plate and connected to the sound insulation plate.
[0017] In the above technical solution, by setting the reinforcing bracket to include multiple reinforcing plates with adjacent reinforcing plates arranged at an angle, the reinforcing bracket can improve the bending stiffness of the sound insulation board while also making the overall weight of the reinforcing bracket lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0018] According to some embodiments of this application, each of the reinforcing brackets includes a first reinforcing plate and a second reinforcing plate, one side surface of the first reinforcing plate in the thickness direction forms a connecting surface, and the second reinforcing plate is connected to the outer edge of the first reinforcing plate and extends away from the sound insulation plate in the thickness direction of the sound insulation plate.
[0019] In the above technical solution, by making one side surface of the first reinforcing plate in the thickness direction form a connecting surface, a larger connection area can be made between the reinforcing bracket and the sound insulation board, thereby more effectively improving the bending stiffness of the sound insulation structure. Furthermore, by setting the reinforcing bracket to include the first reinforcing plate and the second reinforcing plate, while the reinforcing bracket improves the bending stiffness of the sound insulation board, the overall weight of the reinforcing bracket can also be made lighter. This way, while improving the sound insulation effect, the overall weight advantage can be well maintained.
[0020] According to some embodiments of this application, each of the reinforcing brackets includes two second reinforcing plates, which are connected to opposite sides of the first reinforcing plate.
[0021] In the above technical solution, by making the reinforcing bracket include two opposing second reinforcing plates, the reinforcing bracket can improve the bending stiffness of the sound insulation board while also making the overall weight of the reinforcing bracket lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0022] According to some embodiments of this application, each of the plurality of reinforcing plates in the reinforcing bracket further includes a third reinforcing plate, the third reinforcing plate being connected to the side of the second reinforcing plate away from the first reinforcing plate and spaced apart from the sound insulation plate, one end of the third reinforcing plate being connected to the second reinforcing plate, and the other end of the third reinforcing plate extending toward the center away from the first reinforcing plate.
[0023] In the above technical solution, by including the third reinforcing plate in the reinforcing bracket, the bending stiffness of the sound insulation board can be further improved, and the overall weight of the reinforcing bracket can be made lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0024] According to some embodiments of this application, the thickness of the reinforcing plate ranges from 1 mm to 2.3 mm.
[0025] In the above technical solution, by setting the thickness of the reinforcing plate to 1 mm to 2.3 mm, the reinforcing bracket can effectively improve the bending rigidity of the sound insulation structure, and the overall weight of the reinforcing bracket can be made lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0026] According to some embodiments of this application, the area of the connecting surface ranges from 300 mm. 2 ~600mm 2 .
[0027] In the above technical solution, the area of the connection surface between the reinforcing bracket and the sound insulation panel is set at 300 mm. 2 ~600mm 2 This allows for a larger connection area between the reinforcing bracket and the sound insulation panel, improving the stability of the connection between the reinforcing bracket and the sound insulation panel, and also enhancing the bending stiffness of the sound insulation structure.
[0028] According to some embodiments of this application, the height dimension of the reinforcing bracket in the thickness direction of the sound insulation plate is greater than the thickness dimension of the sound insulation plate.
[0029] In the above technical solution, by making the height dimension of the reinforcing bracket in the thickness direction of the sound insulation board greater than the thickness dimension of the sound insulation board, the bending stiffness of the sound insulation structure can be improved.
[0030] According to some embodiments of this application, the height of the reinforcing bracket in the thickness direction of the sound insulation plate is 10 mm to 20 mm.
[0031] In the above technical solution, by making the height of the reinforcing bracket in the thickness direction of the sound insulation board 10mm to 20mm, the bending stiffness of the sound insulation structure can be improved.
[0032] According to some embodiments of this application, the projection of the sound insulation panel onto the reference plane is a first projection, the reference plane is perpendicular to the thickness direction of the sound insulation panel, and the projection of the reinforcing bracket onto the reference plane is a second projection; wherein, the second projection is located within the first projection.
[0033] In the above technical solution, by making the projection of the reinforcing bracket along the thickness direction of the sound insulation board located inside the sound insulation board, it is possible to avoid the reinforcing bracket extending outside the plane of the sound insulation board, reduce the interference of reinforcing brackets on adjacent sound insulation boards when splicing multiple sound insulation structures, and facilitate the splicing of multiple sound insulation structures.
[0034] According to some embodiments of this application, the projection of the sound insulation panel onto the reference plane is a first projection, the reference plane is perpendicular to the thickness direction of the sound insulation panel, and the projection of the reinforcing bracket onto the reference plane is a second projection; wherein, the area of the first projection is 250,000 mm². 2 ~490000mm 2 .
[0035] In the above technical solution, the projected area of the sound insulation panel along its thickness direction is 250,000 mm². 2 ~490000mm 2 This allows for larger sound insulation panels, which, when reinforced with bracing, effectively improve bending stiffness. Furthermore, it makes the processing and shaping of individual sound insulation panels easier. Additionally, when splicing multiple sound insulation panels together, the splicing process can be reduced given a fixed splicing area.
[0036] According to some embodiments of this application, the projection of the sound insulation panel onto the reference surface is a first projection, the reference surface is perpendicular to the thickness direction of the sound insulation panel, and the projection of the reinforcing bracket onto the reference surface is a second projection; wherein, the second projection is rectangular, the length of the second projection ranges from 58 mm to 70 mm, and the width of the second projection ranges from 18 mm to 26 mm.
[0037] In the above technical solution, by making the projection of the reinforcing bracket along the thickness direction of the sound insulation board rectangular, and setting the length of the rectangle to 58 mm to 70 mm and the width to 18 mm to 26 mm, the bending rigidity of the sound insulation structure can be effectively improved.
[0038] According to some embodiments of this application, the projection of a single sound-insulating cavity onto a reference plane is a third projection, and the third projection is hexagonal.
[0039] In the above technical solution, by setting the sound insulation board as a regular polygon, the sound insulation board can have good rigidity when the size of the sound insulation board is fixed, and it is convenient to splice multiple sound insulation boards in the future.
[0040] According to some embodiments of this application, the thickness of the sound insulation board ranges from 3 mm to 7 mm.
[0041] In the above technical solution, by setting the thickness of the sound insulation board to 3 mm to 7 mm, the thickness of the sound insulation board can be thinner, the weight of the sound insulation board can be lighter, and the structural strength and rigidity of the sound insulation board can be maintained.
[0042] According to some embodiments of this application, the sound insulation cavity is hexagonal.
[0043] In the above technical solution, by making the sound insulation cavity hexagonal, the structural stability of the sound insulation board can be improved, and the sound insulation effect can be improved.
[0044] According to some embodiments of this application, the projection of a single sound-insulating cavity onto the reference plane is a third projection, and the area of the third projection is 65 mm². 2 ~260mm 2 .
[0045] In the above technical solution, the projected area of a single sound insulation cavity along the thickness direction of the sound insulation board is 65mm². 2 ~260mm 2 This allows the sound insulation board to have a better sound insulation effect, and also makes the sound insulation board lighter in weight, as well as the overall rigidity and strength of the sound insulation structure higher.
[0046] According to some embodiments of this application, the sound insulation panel includes a honeycomb structure and cover plates located on both sides of the honeycomb structure. The two cover plates and the honeycomb structure together define a plurality of sound insulation cavities. One of the two cover plates has a first surface, and the other of the two cover plates has a second surface. The thickness of the cover plate is 0.05 to 0.3 mm.
[0047] In the above technical solution, by setting the sound insulation panel to include a honeycomb structure and cover plates located on both sides of the honeycomb structure, the sound insulation panel can have a better sound insulation effect, and the overall rigidity and strength of the sound insulation structure can be increased. In addition, by making the thickness of the cover plates 0.05 to 0.3 mm, the weight of the sound insulation panel can be reduced.
[0048] According to some embodiments of this application, the sound insulation panel includes a honeycomb structure and cover plates located on both sides of the honeycomb structure. The two cover plates and the honeycomb structure together define a plurality of sound insulation cavities. One of the two cover plates has the first surface, and the other of the two cover plates has the second surface. The sidewall thickness of the sound insulation cavity is 0.5 mm to 1 mm.
[0049] In the above technical solution, by setting the sound insulation panel to include a honeycomb structure and cover plates located on both sides of the honeycomb structure, the sound insulation panel can have a better sound insulation effect, and the overall rigidity and strength of the sound insulation structure can be increased. In addition, by making the sidewall thickness of the sound insulation cavity 0.5mm to 1mm, the weight of the sound insulation panel can be reduced.
[0050] According to some embodiments of this application, the reinforcing bracket is a one-piece molded part.
[0051] In the above technical solution, by making the reinforcing bracket a one-piece molded part, the assembly process of the reinforcing bracket can be reduced, and the integrity and structural strength of the reinforcing bracket can be improved.
[0052] According to some embodiments of this application, the reinforcing bracket is an aluminum alloy component or an aluminum component.
[0053] In the above technical solution, by setting the reinforcing bracket as an aluminum alloy part or an aluminum part, the reinforcing bracket can improve the bending stiffness of the sound insulation board while making the weight of the reinforcing bracket lighter, thus improving the sound insulation effect while taking into account the weight reduction.
[0054] According to some embodiments of this application, the stiffness of the reinforcing bracket is greater than the stiffness of the sound insulation board.
[0055] In the above technical solution, by making the stiffness of the reinforcing bracket greater than that of the sound insulation board, the reinforcing bracket can effectively improve the bending stiffness of the sound insulation board and enhance the sound insulation effect.
[0056] According to some embodiments of this application, the sound insulation panel is a plastic part, an aluminum alloy part, or an aluminum part.
[0057] In the above technical solution, by using plastic, aluminum alloy, or aluminum components as the sound insulation panel, the weight of the sound insulation panel can be reduced, thereby enabling the sound insulation structure to have a high sound insulation effect while maintaining a light overall weight.
[0058] According to some embodiments of this application, the reinforcing bracket and the sound insulation plate are both independently molded parts, and the reinforcing bracket and the sound insulation plate are connected by fasteners or adhesive layers.
[0059] In the above technical solution, by making the reinforcing bracket and the sound insulation board both independently molded parts, the reinforcing bracket can be made of a different material than the sound insulation board, making the material selection and structural design of the reinforcing bracket more flexible. By connecting the reinforcing bracket and the sound insulation board with fasteners or adhesive layers, the stability of the connection between the reinforcing bracket and the sound insulation board can be improved, so that the reinforcing bracket and the sound insulation board can be connected into a stable whole, thereby effectively improving the bending rigidity of the sound insulation structure and improving the sound insulation effect of the sound insulation structure.
[0060] The floor according to a second aspect embodiment of the present application includes: the sound insulation structure according to the first aspect embodiment of the present application described above.
[0061] According to the floor of the embodiment of this application, by including the above-described sound insulation structure, the noise transmitted from under the vehicle body to the interior of the vehicle body can be reduced, thereby achieving vehicle body lightweighting while enabling the vehicle body to have a better sound insulation effect.
[0062] According to some embodiments of this application, the floor further includes a supporting base plate and a decorative layer, the sound insulation structure is disposed on the upper side of the supporting base plate and sandwiched between the supporting base plate and the decorative layer, and the reinforcing bracket is located on the lower side of the sound insulation board and between the sound insulation board and the supporting base plate.
[0063] In the above technical solution, by setting the floor to include a supporting base plate, a decorative layer and the aforementioned sound insulation structure, noise transmitted from under the vehicle body to the interior of the vehicle body is reduced, while the sound insulation structure is stably supported by the supporting base plate, resulting in a higher overall structural strength of the floor.
[0064] The vehicle according to a third aspect of this application includes: the floor according to the second aspect of this application described above.
[0065] According to the vehicle embodiment of this application, by setting the aforementioned floor, noise transmitted from under the vehicle body to the interior of the vehicle body can be reduced, achieving vehicle body lightweighting while providing better sound insulation.
[0066] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0067] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a sound insulation structure provided in an embodiment of this application; Figure 2This is a schematic diagram of a sound insulation panel of a sound insulation structure provided in an embodiment of this application; Figure 3 This is a schematic diagram showing the distribution of multiple fixing points for fixing multiple reinforcing brackets on a sound insulation panel according to an embodiment of this application; Figure 4 This is a schematic diagram of a reinforcing bracket for a sound insulation structure provided in one embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of the sound insulation panel provided in one embodiment of this application; Figure 6 This is a cross-sectional schematic diagram of the sound insulation cavity of a sound insulation structure provided in an embodiment of this application; Figure 7 This is a comparison diagram of the sound insulation effect of the sound insulation structure provided in an embodiment of this application and the sound insulation structure in related technologies in the low-frequency band.
[0068] Figure label: 100. Sound insulation structure; 10. Sound insulation panel; 11. Cover plate; 111. First surface; 12. Honeycomb structure; 13. Sound insulation cavity; 20. Reinforcing bracket; 21. First reinforcing plate; 211. Connecting surface; 22. Second reinforcing plate; 23. Third reinforcing plate. Detailed Implementation
[0069] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0070] The following is for reference. Figures 1-6 A sound insulation structure 100 according to an embodiment of this application is described. The sound insulation structure 100 can be used in situations requiring sound insulation, such as in vehicles, walls, and other situations requiring sound insulation.
[0071] refer to Figure 1 and Figure 2 The present application provides a sound insulation structure 100, which includes a sound insulation board 10 and a reinforcing bracket 20.
[0072] The sound insulation panel 10 has multiple spaced-apart sound insulation cavities 13 formed within it. These cavities 13 can be arranged along the plane of the sound insulation panel 10; for example, the cavities 13 can be polygonal or circular. The sound insulation panel 10 includes a first surface 111 and a second surface that are disposed opposite to each other along the thickness direction of the sound insulation panel 10. Both the first surface 111 and the second surface can be planar. By providing multiple spaced-apart sound insulation cavities 13 within itself, the sound insulation panel 10 can achieve a good sound insulation effect.
[0073] The reinforcing bracket 20 is fixed to the first surface 111 and / or the second surface. For example, the reinforcing bracket 20 may be fixed to the first surface 111, or the reinforcing bracket 20 may be fixed to the second surface, or the reinforcing bracket 20 may be fixed to both the first surface 111 and the second surface. There may be one or more reinforcing brackets 20.
[0074] The reinforcing bracket 20 and the sound insulation panel 10 can be independently molded parts, and then assembled after being molded independently. The materials of the reinforcing bracket 20 and the sound insulation panel 10 can be different; for example, the reinforcing bracket 20 can be a metal part, and the sound insulation panel 10 can be a plastic part.
[0075] By providing a reinforcing bracket 20 on at least one side surface of the sound insulation panel 10 in the thickness direction, the bending stiffness of the sound insulation structure 100 can be improved. The reinforcing bracket 20 is connected to the sound insulation panel 10 as a whole, which can reconstruct the vibration mode of the sound insulation structure 100 and suppress a part of the vibration mode, thereby suppressing low-frequency sound radiation from the source and solving the sound insulation trough caused by modal vibration in the traditional sound insulation structure 100.
[0076] For example, refer to Figure 7 , Figure 7 This is a comparison diagram of the sound insulation effect of the sound insulation structure 100 provided in an embodiment of this application and the sound insulation structure 100 in the related art in the low frequency band. The sound insulation structure 100 of the embodiment of this application improves the sound insulation effect in the low frequency band (100Hz-800Hz) compared with the sound insulation structure 100 in the related art.
[0077] Compared to traditional sound insulation structures 100, the sound insulation structure 100 of this application improves low-frequency sound insulation and effective sound insulation bandwidth; moreover, while maintaining an overall weight advantage, it also possesses good structural rigidity and wide-band sound insulation stability, and its sound insulation performance consistency is significantly enhanced in large-size applications. While achieving the goal of lightweighting, it can suppress harmful vibration modes of large-size sound insulation materials and block their low-frequency sound radiation paths, while avoiding the degradation of mid-to-high frequency performance caused by traditional reinforcement schemes, thus realizing a lightweight, wide-bandwidth, and high-sound-insulation integrated high-performance sound insulation structure 100.
[0078] According to the embodiments of this application, the sound insulation structure 100 can improve the bending stiffness of the sound insulation structure 100 by setting a reinforcing bracket 20 on the sound insulation plate 10 with a sound insulation cavity 13, and can reconstruct the vibration mode of the sound insulation structure 100. It can suppress a part of the vibration mode, thereby suppressing low-frequency sound radiation from the source, solving the sound insulation trough caused by modal vibration in the traditional sound insulation structure 100, improving the sound insulation effect in the low-frequency band, and while maintaining the overall weight advantage, it also has good structural rigidity and wide-band sound insulation stability, realizing the synergistic optimization of structural vibration reduction and sound insulation performance, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0079] According to some embodiments of this application, refer to Figures 1-3 There are multiple reinforcing brackets 20, and at least some of the reinforcing brackets 20 are spaced apart along the circumference of the sound insulation plate 10.
[0080] For example, all reinforcing brackets 20 are spaced apart circumferentially along the sound insulation panel 10.
[0081] For example, all reinforcing brackets 20 are disposed on the first surface 111 of the sound insulation panel 10.
[0082] For example, refer to Figures 1-3 There are eight reinforcing brackets 20, all of which are located on the first surface 111 of the sound insulation panel 10 and are spaced apart along the circumference of the sound insulation panel 10. Figure 3 The distribution of the eight fixing points E of the eight reinforcing brackets 20 is shown.
[0083] For example, multiple reinforcing supports 20 can be arranged in an optimized manner based on algorithms, and a genetic algorithm-driven regular arrangement design can be performed on the array arrangement of multiple reinforcing supports 20.
[0084] In the above technical solution, by setting multiple reinforcing supports 20 and arranging them circumferentially along the sound insulation board 10, the bending stiffness of the sound insulation structure 100 can be improved, the harmful vibration modes of the large-size sound insulation structure 100 can be suppressed, and its low-frequency sound radiation path can be blocked. By optimizing the arrangement of multiple reinforcing supports 20, the sound insulation effect in the low-frequency band can be improved while maintaining the sound insulation effect in the mid-to-high frequency band. It can also maintain the overall weight advantage, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0085] According to some embodiments of this application, refer to Figures 1-3 Multiple reinforcing brackets 20 are fixed to the first surface 111. Each reinforcing bracket 20 has a connecting surface 211, which faces the first surface 111 and is connected to it. The distance between the center of the connecting surface 211 and the center of the first surface 111 is greater than the minimum distance between the center of the connecting surface 211 and the outer edge of the first surface 111.
[0086] For example, refer to Figure 3 Point E is the fixing point between the reinforcing bracket 20 and the sound insulation plate 10. The fixing point between the reinforcing bracket 20 and the sound insulation plate 10 coincides with the center of the connecting surface 211. Point O is the center of the first surface 111. The distance between the center of the connecting surface 211 and the center of the first surface 111 is d. The minimum distance between the center of the connecting surface 211 and the outer edge of the first surface 111 is R, where d > R.
[0087] In the above technical solution, by fixing multiple reinforcing brackets 20 to the first surface 111, and making the distance between the center of the connecting surface 211 and the center of the first surface 111 greater than the minimum distance between the center of the connecting surface 211 and the outer edge of the first surface 111, the reinforcing brackets 20 can be closer to the outer edge of the sound insulation board 10 relative to the center of the sound insulation board 10. In this way, with a fixed number of reinforcing brackets 20, the bending stiffness of the sound insulation structure 100 can be improved, the harmful vibration modes of the large-size sound insulation structure 100 can be suppressed, and its low-frequency sound radiation path can be blocked. At the same time, by optimizing the arrangement of multiple reinforcing brackets 20, while improving the sound insulation effect in the low-frequency band, the sound insulation effect in the mid-to-high frequency band can be maintained without decreasing, and the overall weight advantage can be maintained, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0088] According to some embodiments of this application, refer to Figures 1-3 The sound insulation board 10 is a regular polygon with a side length of L. The distance between the center of the connecting surface 211 and the center of the first surface 111 is R, and the ratio of R to L is in the range of 0.25 to 0.5.
[0089] For example, the ratio of R to L is 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, etc.
[0090] In the above technical solution, by setting the distance R between the center of the connecting surface 211 and the center of the first surface 111 to 0.25L to 0.5L, the sound insulation performance and structural stability can be precisely controlled.
[0091] According to some embodiments of this application, refer to Figures 1-3 The absolute value of the difference between the center of the connecting surface 211 of any two reinforcing brackets 20 and the center of the first surface 111 is less than 10mm.
[0092] For example, the absolute value of the difference between the center of the connecting surface 211 of any two reinforcing brackets 20 and the center of the first surface 111 is 9 mm, 8 mm, 7 mm, 6 mm, 5 mm, 4 mm, 3 mm, 2 mm, 1 mm, 0, etc.
[0093] For example, the centers of the connecting surfaces 211 of multiple reinforcing brackets 20 are located on the same reference circle, with the center of the first connecting surface 211 as the center. In this case, the absolute value of the difference between the center of the connecting surfaces 211 of any two reinforcing brackets 20 and the center of the first surface 111 is 0.
[0094] In the above technical solution, by making the absolute value of the difference between the center of the connection surface 211 of any two reinforcing brackets 20 and the center of the first surface 111 less than 10mm, the distance between the multiple reinforcing brackets 20 and the center of the sound insulation board 10 can be made close. This can effectively suppress the harmful vibration modes of the large-size sound insulation structure 100 and block its low-frequency sound radiation path. At the same time, by optimizing the arrangement of the multiple reinforcing brackets 20, the sound insulation effect in the low-frequency band can be improved while maintaining the sound insulation effect in the mid-to-high frequency band. It can also maintain the overall weight advantage, taking into account lightweight, wide bandwidth and high sound insulation performance.
[0095] According to some embodiments of this application, refer to Figure 1 and Figure 4 Each reinforcing bracket 20 includes multiple reinforcing plates, with adjacent reinforcing plates arranged at an angle, for example, adjacent reinforcing plate brackets are arranged perpendicularly. One of the reinforcing plates has a connecting surface 211, which faces the sound insulation plate 10 and is connected to the sound insulation plate 10.
[0096] In the above technical solution, by setting the reinforcing bracket 20 to include multiple reinforcing plates with an included angle between two adjacent reinforcing plates, the reinforcing bracket 20 can improve the bending stiffness of the sound insulation board 10 while also making the overall weight of the reinforcing bracket 20 lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0097] According to some embodiments of this application, refer to Figure 1 and Figure 4 Each reinforcing bracket 20 includes multiple reinforcing plates, including a first reinforcing plate 21 and a second reinforcing plate 22. One side surface of the first reinforcing plate 21 in the thickness direction forms a connecting surface 211. The second reinforcing plate 22 is connected to the outer edge of the first reinforcing plate 21 and extends away from the sound insulation plate 10 along the thickness direction of the sound insulation plate 10. The size of the first reinforcing plate 21 may be larger than the size of the second reinforcing plate 22.
[0098] In the above technical solution, by making one side surface of the first reinforcing plate 21 in the thickness direction form a connecting surface 211, the reinforcing bracket 20 and the sound insulation plate 10 can have a large connecting surface area 211, thereby more effectively improving the bending stiffness of the sound insulation structure 100. Furthermore, by setting the reinforcing bracket 20 to include the first reinforcing plate 21 and the second reinforcing plate 22, while the reinforcing bracket 20 improves the bending stiffness of the sound insulation plate 10, the overall weight of the reinforcing bracket 20 can also be made lighter. This way, while improving the sound insulation effect, the overall weight advantage can be well maintained.
[0099] According to some embodiments of this application, refer to Figure 1 and Figure 4 Each reinforcing bracket 20 includes two second reinforcing plates 22, which are connected to opposite sides of the first reinforcing plate 21.
[0100] In the above technical solution, by making the reinforcing bracket 20 include two opposing second reinforcing plates 22, the reinforcing bracket 20 can improve the bending stiffness of the sound insulation board 10, while also making the overall weight of the reinforcing bracket 20 lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0101] According to some embodiments of this application, refer to Figure 1 and Figure 4 Each reinforcing bracket 20 includes multiple reinforcing plates, each of which also includes a third reinforcing plate 23. The third reinforcing plate 23 is connected to the side of the second reinforcing plate 22 away from the first reinforcing plate 21 and is spaced apart from the sound insulation plate 10. One end of the third reinforcing plate 23 is connected to the second reinforcing plate 22, and the other end of the third reinforcing plate 23 extends toward the center away from the first reinforcing plate 21. The size of the first reinforcing plate 21 may be larger than the size of the third reinforcing plate 23.
[0102] For example, in Figure 4In the example, the reinforcing bracket 20 includes five reinforcing plates: a first reinforcing plate 21, two second reinforcing plates 22, and two third reinforcing plates 23. The first reinforcing plate 21 is attached to and connected to the sound insulation panel 10, and can be arranged parallel to the sound insulation panel 10. The two second reinforcing plates 22 are located on opposite sides of the first reinforcing plate 21, with their larger facing surfaces pointing towards each other. Both second reinforcing plates 22 are located on the side of the first reinforcing plate 21 away from the sound insulation panel 10. The two third reinforcing plates 23 are respectively located at the ends of the two second reinforcing plates 22 away from each other, and extend in a direction away from each other. The third reinforcing plates 23 can be arranged parallel to and spaced apart from the sound insulation panel 10. This allows the reinforcing bracket 20 to have an overall "U" shape, thereby improving the bending stiffness of the sound insulation panel 10 while keeping the overall weight of the reinforcing bracket 20 relatively light, thus achieving both sound insulation effect and lightweight design.
[0103] In the above technical solution, by including the third reinforcing plate 23 in the reinforcing bracket 20, the bending stiffness of the sound insulation board 10 can be further improved, and the overall weight of the reinforcing bracket 20 can be made lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0104] According to some embodiments of this application, refer to Figure 4 The thickness of the reinforcing plate ranges from 1 mm to 2.3 mm.
[0105] For example, refer to Figure 4 The thickness of the reinforcing plate is t, and the value of t can be 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, 2.3 mm, etc.
[0106] In the above technical solution, by setting the thickness of the reinforcing plate to 1 mm to 2.3 mm, the reinforcing bracket 20 can effectively improve the bending rigidity of the sound insulation structure 100, and the overall weight of the reinforcing bracket 20 can be made lighter. This can improve the sound insulation effect while maintaining the overall weight advantage.
[0107] According to some embodiments of this application, refer to Figure 4 The area of the connecting surface 211 is 300 mm. 2 ~600mm 2 .
[0108] For example, the area of the connecting surface 211 can be 300 mm. 2 350 mm 2 400 mm 2 450 mm 2 500 mm2 550mm 2 600 mm 2 wait.
[0109] For example, the connecting surface 211 can be rectangular, the length of the connecting surface 211 can be in the range of 20mm to 24mm, and the width of the connecting surface 211 can be in the range of 18mm to 22mm.
[0110] In the above technical solution, the area of the connection surface 211 connecting the reinforcing bracket 20 and the sound insulation plate 10 is set at 300mm². 2 ~600mm 2 This allows the reinforcing bracket 20 and the sound insulation board 10 to have a larger connection area 211, which can improve the stability of the connection between the reinforcing bracket 20 and the sound insulation board 10, and can also improve the bending stiffness of the sound insulation structure 100.
[0111] According to some embodiments of this application, the height dimension of the reinforcing bracket 20 in the thickness direction of the sound insulation plate 10 is greater than the thickness dimension of the sound insulation plate 10.
[0112] For example, refer to Figure 2 and Figure 4 The height dimension of the reinforcing bracket 20 in the thickness direction of the sound insulation board 10 is h, and the thickness dimension of the sound insulation board 10 is g, where h > g.
[0113] In the above technical solution, by making the height dimension of the reinforcing bracket 20 in the thickness direction of the sound insulation plate 10 greater than the thickness dimension of the sound insulation plate 10, the bending stiffness of the sound insulation structure 100 can be improved.
[0114] According to some embodiments of this application, the height dimension of the reinforcing bracket 20 in the thickness direction of the sound insulation plate 10 is 10mm to 20mm.
[0115] For example, refer to Figure 4 The height dimension of the reinforcing bracket 20 in the thickness direction of the sound insulation board 10 is h, and the value of h can be 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, etc.
[0116] In the above technical solution, by making the height dimension of the reinforcing bracket 20 in the thickness direction of the sound insulation board 10 10 mm to 20 mm, the bending stiffness of the sound insulation structure 100 can be improved.
[0117] According to some embodiments of this application, the projection of the sound insulation plate 10 onto the reference plane is a first projection, the reference plane is perpendicular to the thickness direction of the sound insulation plate 10, and the projection of the reinforcing bracket 20 onto the reference plane is a second projection; wherein, the second projection is located within the first projection.
[0118] In the above technical solution, by making the projection of the reinforcing bracket 20 along the thickness direction of the sound insulation plate 10 located inside the sound insulation plate 10, the reinforcing bracket 20 can be prevented from extending outside the plane of the sound insulation plate 10, reducing interference between the reinforcing brackets 20 on adjacent sound insulation plates 10 when splicing multiple sound insulation structures 100, and facilitating the splicing of multiple sound insulation structures 100.
[0119] According to some embodiments of this application, the projection of the sound insulation panel 10 onto the reference plane is a first projection, the reference plane being perpendicular to the thickness direction of the sound insulation panel 10, and the projection of the reinforcing bracket 20 onto the reference plane is a second projection; wherein, the area of the first projection is 250,000 mm². 2 ~490000 mm 2 .
[0120] For example, the area of the first projection can be 250,000 mm². 2 270,000 mm 2 300,000 mm 2 330,000 mm 2 360,000 mm 2 380,000 mm 2 400,000 mm 2 450,000 mm 2 490,000 mm 2 wait.
[0121] For example, the first projection can be a regular polygon, such as a square, and the side length of the first projection can be in the range of 500mm to 700mm, such as 500mm, 550mm, 600mm, 650mm, 700mm, etc.
[0122] In the above technical solution, the projected area of the sound insulation panel 10 along its thickness direction is 250,000 mm². 2 ~490000 mm 2 This allows for a larger size of the sound insulation panel 10. By setting a reinforcing bracket 20 on the larger sound insulation panel 10, the bending stiffness can be effectively improved. Furthermore, it makes the processing and shaping of a single sound insulation panel 10 more convenient. In addition, when splicing multiple sound insulation panels 10 of the sound insulation structure 100, the splicing process can be reduced when the splicing area is fixed.
[0123] According to some embodiments of this application, the projection of the sound insulation plate 10 onto the reference surface is a first projection, the reference surface is perpendicular to the thickness direction of the sound insulation plate 10, and the projection of the reinforcing bracket 20 onto the reference surface is a second projection; wherein, the second projection is rectangular, the length of the second projection ranges from 58 mm to 70 mm, and the width of the second projection ranges from 18 mm to 26 mm.
[0124] For example, the length of the second projection can be 58 mm, 60 mm, 62 mm, 64 mm, 66 mm, 68 mm, 70 mm, etc., and the width of the second projection can be 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, etc.
[0125] In the above technical solution, by making the projection of the reinforcing bracket 20 along the thickness direction of the sound insulation board 10 into a rectangle, and setting the length of the rectangle to 58 mm to 70 mm and the width to 18 mm to 26 mm, the bending rigidity of the sound insulation structure 100 can be effectively improved.
[0126] According to some embodiments of this application, refer to Figures 1-3 The sound insulation panel 10 is a regular polygon. For example, the sound insulation panel 10 can be a square.
[0127] In the above technical solution, by setting the sound insulation panel 10 as a regular polygon, the sound insulation panel 10 can have good rigidity when the size of the sound insulation panel 10 is fixed, and it is convenient to splice multiple sound insulation panels 10 in the future.
[0128] According to some embodiments of this application, refer to Figures 1-3 The thickness of the sound insulation board 10 ranges from 3 mm to 7 mm.
[0129] For example, refer to Figure 2 The thickness of the sound insulation board 10 is g, and the value of g can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, etc.
[0130] In the above technical solution, by setting the thickness of the sound insulation board 10 to 3 mm to 7 mm, the thickness of the sound insulation board 10 can be thinner, the weight of the sound insulation board 10 can be lighter, and the structural strength and rigidity of the sound insulation board 10 can also be maintained.
[0131] According to some embodiments of this application, the projection of a single sound-insulating cavity 13 onto a reference plane is a third projection, which is hexagonal. For example, the third projection is a regular hexagon. For example, the interior of the sound insulation panel 10 can have a honeycomb structure.
[0132] In the above technical solution, by making the sound insulation cavity 13 hexagonal, the sound insulation panel 10 can have better structural stability and sound insulation effect.
[0133] According to some embodiments of this application, the projection of a single soundproof cavity 13 onto the reference plane is a third projection, and the area of the third projection ranges from 65 mm. 2 ~260 mm 2 .
[0134] For example, the area of the third projection can be 65 mm. 2 105 mm 2 155 mm 2 205 mm 2 260 mm 2 wait.
[0135] For example, the third projection is a regular hexagon, and the side length of the third projection can range from 5mm to 10mm. For example, the side length of the third projection can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.
[0136] In the above technical solution, the projected area of a single sound insulation cavity 13 along the thickness direction of the sound insulation panel 10 is 65mm². 2 ~260 mm 2 This allows the sound insulation panel 10 to have a better sound insulation effect, and also makes the sound insulation panel 10 lighter in weight, and also makes the overall rigidity and strength of the sound insulation structure 100 higher.
[0137] According to some embodiments of this application, refer to Figure 2 , Figure 5 as well as Figure 6 The sound insulation panel 10 includes a honeycomb structure 12 and cover plates 11 located on both sides of the honeycomb structure 12. The two cover plates 11 and the honeycomb structure 12 together define a plurality of sound insulation cavities 13. One of the two cover plates 11 has a first surface 111, and the other of the two cover plates 11 has a second surface. The thickness of the cover plate 11 is 0.05 to 0.3 mm.
[0138] In the above technical solution, by configuring the sound insulation panel 10 to include a honeycomb structure 12 and cover plates 11 located on both sides of the honeycomb structure 12, the sound insulation panel 10 can have a better sound insulation effect, and the overall rigidity and strength of the sound insulation structure 100 can be higher. In addition, by making the thickness of the cover plate 11 0.05 to 0.3 mm, the weight of the sound insulation panel 10 can be reduced.
[0139] According to some embodiments of this application, refer to Figure 2 , Figure 5 as well as Figure 6The sound insulation panel 10 includes a honeycomb structure 12 and cover plates 11 located on both sides of the honeycomb structure 12. The two cover plates 11 and the honeycomb structure 12 together define a plurality of sound insulation cavities 13. One of the two cover plates 11 has a first surface 111, and the other of the two cover plates 11 has a second surface. The sidewall thickness of the sound insulation cavity 13 is 0.5 mm to 1 mm.
[0140] The sidewall of the sound insulation cavity 13 refers to the solid structure located in the two adjacent sound insulation cavities 13 of the honeycomb structure 12.
[0141] For example, refer to Figure 6 The sidewall thickness of the sound insulation cavity 13 is i, and the value of i can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc.
[0142] In the above technical solution, by configuring the sound insulation panel 10 to include a honeycomb structure 12 and cover plates 11 located on both sides of the honeycomb structure 12, the sound insulation panel 10 can have a better sound insulation effect, and the overall rigidity and strength of the sound insulation structure 100 can be higher. In addition, by making the sidewall thickness of the sound insulation cavity 13 0.5mm to 1mm, the weight of the sound insulation panel 10 can be reduced.
[0143] According to some embodiments of this application, the reinforcing bracket 20 is a one-piece molded part.
[0144] In the above technical solution, by making the reinforcing bracket 20 a one-piece molded part, the assembly process of the reinforcing bracket 20 can be reduced, and the integrity and structural strength of the reinforcing bracket 20 can be improved.
[0145] According to some embodiments of this application, the reinforcing bracket 20 is an aluminum alloy part or an aluminum part.
[0146] In the above technical solution, by setting the reinforcing bracket 20 as an aluminum alloy part or an aluminum part, the reinforcing bracket 20 can improve the bending stiffness of the sound insulation board 10 while making the weight of the reinforcing bracket 20 lighter, thus improving the sound insulation effect while taking into account the weight reduction.
[0147] According to some embodiments of this application, the stiffness of the reinforcing bracket 20 is greater than the stiffness of the sound insulation plate 10.
[0148] In the above technical solution, by making the hardness of the reinforcing bracket 20 greater than that of the sound insulation board 10, the reinforcing bracket 20 can effectively improve the bending stiffness of the sound insulation board 10 and enhance the sound insulation effect.
[0149] According to some embodiments of this application, the sound insulation panel 10 is a plastic part, an aluminum alloy part, or an aluminum part. For example, the sound insulation panel 10 can be a PP plastic part. For example, the sound insulation panel 10 can be a one-piece injection molded part.
[0150] In the above technical solution, by making the sound insulation panel 10 a plastic part, an aluminum alloy part, or an aluminum part, the sound insulation panel 10 can be made lighter, thereby making the sound insulation structure 100 have a high sound insulation effect while being lighter in overall weight.
[0151] According to some embodiments of this application, the reinforcing bracket 20 and the sound insulation plate 10 are both independently molded parts, and the reinforcing bracket 20 and the sound insulation plate 10 are connected by fasteners or adhesive layers. For example, the fasteners can be screws.
[0152] In the above technical solution, by making the reinforcing bracket 20 and the sound insulation panel 10 independently molded parts, the reinforcing bracket 20 can be made of a different material than the sound insulation panel 10, making the material selection and structural design of the reinforcing bracket 20 more flexible. By connecting the reinforcing bracket 20 and the sound insulation panel 10 with fasteners or adhesive layers, the stability of the connection between the reinforcing bracket 20 and the sound insulation panel 10 can be improved, so that the reinforcing bracket 20 and the sound insulation panel 10 can be connected into a stable whole, thereby effectively improving the bending rigidity of the sound insulation structure 100 and improving the sound insulation effect of the sound insulation structure 100.
[0153] The floor according to a second aspect of this application includes: a sound insulation structure 100 according to the first aspect of this application described above.
[0154] According to the floor of the embodiment of this application, by including the sound insulation structure 100 described above, noise transmitted from under the vehicle body to the interior of the vehicle body can be reduced, thereby achieving vehicle body lightweighting while giving the vehicle body a better sound insulation effect.
[0155] According to some embodiments of this application, the floor also includes a supporting base plate and a decorative layer, a sound insulation structure 100 is disposed on the upper side of the supporting base plate, the sound insulation structure 100 is sandwiched between the supporting base plate and the decorative layer, and a reinforcing bracket 20 is located on the lower side of the sound insulation board 10 and between the sound insulation board 10 and the supporting base plate.
[0156] The supporting base plate can be a sheet metal part, and the decorative layer includes a foam layer, such as an EVA foam layer.
[0157] In the above technical solution, by setting the floor to include a supporting base plate, a decorative layer and the aforementioned sound insulation structure 100, noise transmitted from under the vehicle body to the interior of the vehicle body is reduced, while the sound insulation structure 100 is stably supported by the supporting base plate, resulting in higher overall structural strength of the floor.
[0158] The vehicle according to a third aspect of this application includes: the floor according to the second aspect of this application described above.
[0159] According to the vehicle embodiment of this application, by setting the aforementioned floor, noise transmitted from under the vehicle body to the interior of the vehicle body can be reduced, achieving vehicle body lightweighting while providing better sound insulation.
[0160] In this application, "multiple" refers to two or more.
[0161] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0162] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0163] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0164] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if a method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if a method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.
[0165] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A sound insulation structure, characterized in that, include: A sound insulation board, wherein a plurality of spaced sound insulation cavities are formed within the sound insulation board, and the sound insulation board includes a first surface and a second surface disposed opposite to each other along the thickness direction of the sound insulation board; A reinforcing bracket is fixed to the first surface and / or the second surface.
2. The sound insulation structure according to claim 1, characterized in that, There are multiple reinforcing brackets, and at least some of the reinforcing brackets are spaced apart along the circumference of the sound insulation plate.
3. The sound insulation structure according to claim 2, characterized in that, Multiple reinforcing brackets are fixed to the first surface. Each reinforcing bracket has a connecting surface that faces and is connected to the first surface. The distance between the center of the connecting surface and the center of the first surface is greater than the minimum distance between the center of the connecting surface (211) and the outer edge of the first surface.
4. The sound insulation structure according to claim 3, characterized in that, The sound insulation board is a regular polygon with a side length of L. The distance between the center of the connecting surface and the center of the first surface is R, and the ratio of R to L ranges from 0.25 to 0.
5.
5. The sound insulation structure according to claim 3, characterized in that, The absolute value of the difference between the center of the connecting surface of any two of the reinforcing brackets and the center of the first surface is less than 10 mm.
6. The sound insulation structure according to claim 2, characterized in that, Each of the reinforcing brackets includes multiple reinforcing plates, with adjacent reinforcing plates arranged at an angle, and one of the reinforcing plates having a connecting surface facing and connected to the sound insulation plate.
7. The sound insulation structure according to claim 6, characterized in that, Each of the reinforcing brackets comprises a first reinforcing plate and a second reinforcing plate, wherein one side surface of the first reinforcing plate in the thickness direction forms a connecting surface, and the second reinforcing plate is connected to the outer edge of the first reinforcing plate and extends away from the sound insulation plate in the thickness direction of the sound insulation plate.
8. The sound insulation structure according to claim 7, characterized in that, Each of the reinforcing brackets includes two second reinforcing plates, which are connected to opposite sides of the first reinforcing plate; And / or, each of the plurality of reinforcing plates in the reinforcing bracket further includes a third reinforcing plate, the third reinforcing plate being connected to the side of the second reinforcing plate away from the first reinforcing plate and spaced apart from the sound insulation plate, one end of the third reinforcing plate being connected to the second reinforcing plate, and the other end of the third reinforcing plate extending toward the center away from the first reinforcing plate.
9. The sound insulation structure according to claim 6, characterized in that, The thickness of the reinforcing plate ranges from 1 mm to 2.3 mm; And / or, the area of the connecting surface is in the range of 300 mm. 2 ~600mm 2 .
10. The sound insulation structure according to claim 1, characterized in that, The height of the reinforcing bracket in the thickness direction of the sound insulation board is greater than the thickness of the sound insulation board. And / or, the height dimension of the reinforcing bracket in the thickness direction of the sound insulation board is 10 mm to 20 mm.
11. The sound insulation structure according to any one of claims 1-10, characterized in that, The projection of the sound insulation panel onto the reference plane is the first projection, and the reference plane is perpendicular to the thickness direction of the sound insulation panel. The projection of the reinforcing bracket onto the reference plane is the second projection. Wherein, the second projection is located within the first projection, and / or, the area of the first projection is 250000 mm². 2 ~490000mm 2 And / or, the second projection is rectangular, the length of the second projection ranges from 58 mm to 70 mm, and the width of the second projection ranges from 18 mm to 26 mm.
12. The sound insulation structure according to any one of claims 1-10, characterized in that, The sound insulation panel is a regular polygon; And / or, the thickness of the sound insulation board ranges from 3 mm to 7 mm; And / or, the projection of a single sound-insulating cavity onto the reference plane is a third projection, and the third projection is hexagonal; And / or, the projection of a single sound-insulating cavity onto the reference plane is a third projection, the area of which is 65 mm². 2 ~260mm 2 .
13. The sound insulation structure according to any one of claims 1-10, characterized in that, The sound insulation panel includes a honeycomb structure and cover plates located on both sides of the honeycomb structure. The two cover plates and the honeycomb structure together define a plurality of sound insulation cavities. One of the two cover plates has the first surface, and the other of the two cover plates has the second surface. The thickness of the cover plate is 0.05 to 0.3 mm, and / or the thickness of the sidewall of the sound insulation cavity is 0.5 mm to 1 mm.
14. The sound insulation structure according to any one of claims 1-10, characterized in that, The reinforcing bracket is a one-piece molded component; And / or, the reinforcing bracket is an aluminum alloy component or an aluminum component; And / or, the stiffness of the reinforcing bracket is greater than the stiffness of the sound insulation board; And / or, the sound insulation panel is made of plastic, aluminum alloy, or aluminum.
15. The sound insulation structure according to any one of claims 1-10, characterized in that, Both the reinforcing bracket and the sound insulation board are independently molded parts, and the reinforcing bracket and the sound insulation board are connected by fasteners or adhesive layers.
16. A type of flooring, characterized in that, include: The sound insulation structure according to any one of claims 1-15.
17. The flooring according to claim 16, characterized in that, The floor also includes a supporting base plate and a decorative layer. The sound insulation structure is located on the upper side of the supporting base plate and sandwiched between the supporting base plate and the decorative layer. The reinforcing bracket is located on the lower side of the sound insulation board and between the sound insulation board and the supporting base plate.
18. A vehicle, characterized in that, include: The flooring as claimed in claim 16 or 17.