Vehicle body reinforcing structure and convertible
By installing a reinforced frame and reinforced mesh under the convertible's body floor, the structural strength and rigidity of the body floor are enhanced, solving the problem of insufficient torsional and bending rigidity of the body-in-white floor and reducing deformation and abnormal noises during vehicle operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA FAW CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-24
AI Technical Summary
The convertible's body-in-white floor has low torsional and bending stiffness, which causes the vehicle to deform significantly during driving, resulting in abnormal noises.
A reinforcing frame is installed under the vehicle floor, and a reinforcing mesh is installed inside it. The connection between the reinforcing frame and the reinforcing mesh enhances the overall structural strength and rigidity of the vehicle floor.
It improves the torsional and bending stiffness of the vehicle floor, reduces vehicle deformation during driving, and eliminates abnormal noise problems.
Smart Images

Figure CN224159332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle body reinforcement structure and a convertible. Background Technology
[0002] Currently, convertible models are limited by their folding roof structure, preventing the installation of side door openings and roof crossbeams in the body-in-white, thus failing to form a closed body-in-white structure. Consequently, the torsional and bending stiffness of the body-in-white floor is relatively low, leading to relatively large deformation during vehicle operation and resulting in problems such as abnormal noises. Utility Model Content
[0003] The purpose of this utility model is to provide a body reinforcement structure and a convertible to solve the problem that the floor of the body-in-white has low torsional stiffness and bending stiffness in the prior art, which leads to relatively large deformation of the vehicle during driving and thus abnormal noise.
[0004] On one hand, this utility model provides a vehicle body reinforcement structure for connection to the vehicle body floor. The vehicle body floor includes a rear floor, a front floor, a middle floor, and two middle floor longitudinal beams. The middle floor is connected to the two middle floor longitudinal beams. The rear floor is connected to the front floor through the middle floor. The middle floor longitudinal beams are sequentially connected to the front floor, the middle floor, and the rear floor. The vehicle body reinforcement structure includes: a reinforcement frame located below the vehicle body floor, with the rear floor, the front floor, and the two middle floor longitudinal beams all connected to the reinforcement frame; and a reinforcement mesh disposed within the reinforcement frame, with the inner wall of the reinforcement frame and the middle floor all connected to the reinforcement mesh.
[0005] As an optional technical solution for the vehicle body reinforcement structure, the reinforcement mesh includes multiple intersecting reinforcement members, all of which are connected to the inner wall of the reinforcement frame and the middle floor.
[0006] As an optional technical solution for the vehicle body reinforcement structure, reinforcing wings are provided between the multiple intersecting reinforcing members and at the connection between each reinforcing member and the reinforcing frame.
[0007] As an optional technical solution for the vehicle body reinforcement structure, the plurality of reinforcement members include a first reinforcement rod and a second reinforcement rod that are cross-connected. The connection between the first reinforcement rod and the second reinforcement rod is connected to the middle floor. The two ends of the first reinforcement rod are respectively connected to the two longitudinal beams of the middle floor, and the two ends of the second reinforcement rod are respectively connected to the two longitudinal beams of the middle floor.
[0008] As an optional technical solution for vehicle body reinforcement structure, the reinforcement component is a hollow tubular structure.
[0009] As an optional technical solution for vehicle body reinforcement structure, both the reinforcing frame and the reinforcing mesh are made of steel, carbon fiber, or aluminum alloy.
[0010] As an optional technical solution for the vehicle body reinforcement structure, the vehicle body floor has a line of symmetry, which divides the vehicle body floor into two symmetrical parts, and also divides the reinforcement frame and the reinforcement mesh into two symmetrical parts.
[0011] As an optional technical solution for the vehicle body reinforcement structure, the reinforcement frame includes a first frame, a second frame, a third frame and a fourth frame connected end to end in sequence. The rear floor and the two middle floor longitudinal beams are connected to the first frame. The front floor and one middle floor longitudinal beam are connected to the second frame. The front floor and the third frame are connected. The front floor and the other middle floor longitudinal beam are connected to the fourth frame.
[0012] As an optional technical solution for vehicle body reinforcement structure, the reinforcing frame and the reinforcing mesh are integrally formed structures.
[0013] On the other hand, this utility model provides a convertible vehicle, including the body reinforcement structure of any of the above-mentioned solutions.
[0014] The beneficial effects of this utility model are as follows:
[0015] This utility model provides a vehicle body reinforcement structure, which includes a reinforcement frame and a reinforcement mesh. Using this vehicle body reinforcement structure, the reinforcement mesh is placed within the reinforcement frame, and the inner wall and middle floor of the reinforcement frame are connected to the reinforcement mesh. This arrangement allows the mesh structure to comprehensively increase the overall structural strength and rigidity of the reinforcement frame. Simultaneously, the rear floor, front floor, and two middle floor longitudinal beams are all connected to the reinforcement frame, further enhancing the overall structural strength and rigidity of the vehicle body floor. This compensates for the insufficient rigidity of the vehicle body floor in existing technologies, effectively solving the problem of low torsional and bending rigidity of the floor in existing body-in-white technologies, which leads to relatively large deformation during vehicle operation and consequently, abnormal noises. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the vehicle body reinforcement structure in an embodiment of this utility model;
[0017] Figure 2 This is a schematic diagram of the vehicle body reinforcement structure installed on the vehicle body floor in an embodiment of this utility model.
[0018] In the picture:
[0019] 1. Strengthen the framework; 11. First frame; 12. Second frame; 13. Third frame; 14. Fourth frame;
[0020] 2. Reinforcing mesh; 21. Reinforcing component; 211. First reinforcing rod; 212. Second reinforcing rod;
[0021] 3. Reinforced wings;
[0022] 4. Vehicle floor; 41. Rear floor; 42. Front floor; 43. Middle floor longitudinal beam; 44. Middle floor; 45. Line of symmetry. Detailed Implementation
[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of 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.
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] like Figures 1 to 2 As shown, this embodiment provides a vehicle body reinforcement structure for connection to the vehicle body floor 4. The vehicle body floor 4 includes a rear floor 41, a front floor 42, a middle floor 44, and two middle floor longitudinal beams 43. The middle floor 44 is connected to the two middle floor longitudinal beams 43. The rear floor 41 is connected to the front floor 42 through the middle floor 44. The middle floor longitudinal beams 43 are sequentially connected to the front floor 42, the middle floor 44, and the rear floor 41. The vehicle body reinforcement structure includes: a reinforcement frame 1 located below the vehicle body floor 4, with the rear floor 41, the front floor 42, and the two middle floor longitudinal beams 43 all connected to the reinforcement frame 1; and a reinforcement mesh 2 disposed within the reinforcement frame 1, with the inner wall of the reinforcement frame 1 and the middle floor 44 connected to the reinforcement mesh 2.
[0028] The vehicle body reinforcement structure provided by this utility model incorporates a reinforcing mesh 2 within a reinforcing frame 1, with the inner wall 1 and middle floor 44 of the reinforcing frame connected to the reinforcing mesh 2. This mesh structure comprehensively increases the overall structural strength and rigidity of the reinforcing frame 1. Simultaneously, the rear floor 41, front floor 42, and two middle floor longitudinal beams 43 are all connected to the reinforcing frame 1, further enhancing the overall structural strength and rigidity of the vehicle body floor 4. This addresses the deficiency in rigidity of the vehicle body floor 4 in existing technologies, effectively solving the problem of low torsional and bending rigidity of the floor in existing body-in-white systems, which leads to relatively large deformation during vehicle operation and consequently, abnormal noise.
[0029] The rear floor 41, front floor 42 and the two middle floor longitudinal beams 43 are connected to the reinforcing frame 1 by bolts.
[0030] In some embodiments, the reinforcing mesh 2 includes a plurality of intersecting reinforcing members 21. Each of the reinforcing members 21 is connected to the inner wall and the middle floor 44 of the reinforcing frame 1. This arrangement allows for a comprehensive improvement in the overall structural strength and rigidity of the reinforcing frame 1 through the multiple reinforcing members 21; it also enhances the structural strength between the reinforcing frame 1 and the vehicle body floor 4. Specifically, the number of reinforcing members 21 can be selected according to actual needs.
[0031] The multiple intersecting reinforcing members 21 are connected by welding, and are connected to the inner wall of the reinforcing frame 1 by bolts.
[0032] Specifically, in order to enhance the structural strength between the multiple reinforcing members 21 and between the reinforcing members 21 and the reinforcing frame 1, in this scheme, reinforcing wings 3 are provided between the multiple reinforcing members 21 that are interconnected and at the connection points between each reinforcing member 21 and the reinforcing frame 1. The provision of reinforcing wings 3 can effectively increase the connection area between the multiple reinforcing members 21 and between the reinforcing members 21 and the reinforcing frame 1, thereby improving the connection strength.
[0033] In this embodiment, the multiple reinforcing members 21 include cross-connected first reinforcing rods 211 and second reinforcing rods 212. The connection point of the first reinforcing rods 211 and second reinforcing rods 212 is connected to the middle floor 44. This further improves the connection strength between the reinforcing mesh 2 and the vehicle body floor 4, ensuring the overall structural strength and rigidity between the reinforcing frame 1 and the vehicle body floor 4. Specifically, the two ends of the first reinforcing rod 211 are connected to two middle floor longitudinal beams 43, and the two ends of the second reinforcing rod 212 are also connected to two middle floor longitudinal beams 43. This arrangement further enhances the connection strength between the reinforcing mesh 2 and the reinforcing frame 1.
[0034] Furthermore, the reinforcing member 21 may include, but is not limited to, a hollow tubular structure. This design reduces the weight of the reinforcing member 21 while ensuring its structural strength, and also reduces the overall weight of the vehicle.
[0035] Specifically, both the reinforcing frame 1 and the reinforcing mesh 2 are made of steel, carbon fiber, or aluminum alloy. Similarly, while ensuring the structural strength of the reinforcing frame 1 and the reinforcing mesh 2, the overall weight of the vehicle is reduced.
[0036] In this embodiment, as Figure 2 As shown, the vehicle body floor 4 has a symmetry line 45, which divides the vehicle body floor 4 into two symmetrical parts, and also divides the reinforcing frame 1 and the reinforcing mesh 2 into two symmetrical parts. This arrangement ensures that the reinforcing frame 1 and the reinforcing mesh 2 are evenly distributed on both sides of the vehicle body floor 4, guaranteeing the balance of the vehicle body floor 4.
[0037] In this embodiment, the reinforcing frame 1 includes a first frame 11, a second frame 12, a third frame 13, and a fourth frame 14 connected end-to-end. The rear floor 41 and two middle floor longitudinal beams 43 are connected to the first frame 11; the front floor 42 and one middle floor longitudinal beam 43 are connected to the second frame 12; the front floor 42 is connected to the third frame 13; and the front floor 42 and the other middle floor longitudinal beam 43 are connected to the fourth frame 14. This arrangement allows the reinforcing frame 1 to connect the rear floor 41, the front floor 42, and the two middle floor longitudinal beams 43 of the vehicle body floor 4, ensuring the overall structural strength of the vehicle body floor 4.
[0038] In some embodiments, the reinforcing frame 1 and the reinforcing mesh 2 are integrally formed. This facilitates processing and reduces production costs.
[0039] This embodiment also provides a convertible vehicle, including the body reinforcement structure described above. Using the convertible vehicle provided by this invention, the reinforcing mesh 2 is placed within the reinforcing frame 1, and the inner wall 1 and the middle floor 44 of the reinforcing frame are all connected to the reinforcing mesh 2. This mesh structure can comprehensively increase the overall structural strength and rigidity of the reinforcing frame 1. Simultaneously, the rear floor 41, front floor 42, and two middle floor longitudinal beams 43 are all connected to the reinforcing frame 1, allowing the reinforcing frame 1 to further enhance the overall structural strength and rigidity of the vehicle body floor 4. This compensates for the insufficient rigidity of the vehicle body floor 4 in the prior art, effectively solving the problem of low torsional and bending rigidity of the floor in the prior art, which leads to relatively large deformation during vehicle operation and thus abnormal noise.
[0040] 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 other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations 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 vehicle body reinforcement structure for connection to a vehicle body floor (4), the vehicle body floor (4) comprising a rear floor (41), a front floor (42), a middle floor (44), and two middle floor longitudinal beams (43), the middle floor (44) being connected to the two middle floor longitudinal beams (43), the rear floor (41) being connected to the front floor (42) via the middle floor (44), and the middle floor longitudinal beams (43) being sequentially connected through the front floor (42), the middle floor (44), and the rear floor (41), characterized in that, The vehicle body reinforcement structure includes: A reinforcing frame (1) is located below the vehicle floor (4), and the rear floor (41), the front floor (42) and the two middle floor longitudinal beams (43) are all connected to the reinforcing frame (1); A reinforcing mesh (2) is installed inside the reinforcing frame (1), and the inner wall of the reinforcing frame (1) and the middle floor (44) are connected to the reinforcing mesh (2).
2. The vehicle body reinforcement structure according to claim 1, characterized in that, The reinforcing mesh (2) includes multiple reinforcing members (21) that are interconnected with each other, and all of the reinforcing members (21) are connected to the inner wall of the reinforcing frame (1) and the middle floor (44).
3. The vehicle body reinforcement structure according to claim 2, characterized in that, A reinforcing wing (3) is provided between the multiple reinforcing members (21) that are intersected and at the connection between each reinforcing member (21) and the reinforcing frame (1).
4. The vehicle body reinforcement structure according to claim 2, characterized in that, The plurality of reinforcing members (21) include a first reinforcing rod (211) and a second reinforcing rod (212) that are cross-connected. The connection between the first reinforcing rod (211) and the second reinforcing rod (212) is connected to the middle floor (44). The two ends of the first reinforcing rod (211) are respectively connected to two middle floor longitudinal beams (43), and the two ends of the second reinforcing rod (212) are respectively connected to two middle floor longitudinal beams (43).
5. The vehicle body reinforcement structure according to claim 2, characterized in that, The reinforcing member (21) is a hollow tubular structure.
6. The vehicle body reinforcement structure according to claim 1, characterized in that, The reinforcing frame (1) and the reinforcing mesh (2) are both made of steel, carbon fiber, or aluminum alloy.
7. The vehicle body reinforcement structure according to claim 1, characterized in that, The vehicle floor (4) has a symmetry line (45) that divides the vehicle floor (4) into two symmetrical parts and also divides the reinforcing frame (1) and the reinforcing mesh (2) into two symmetrical parts.
8. The vehicle body reinforcement structure according to claim 1, characterized in that, The reinforcing frame (1) includes a first frame (11), a second frame (12), a third frame (13), and a fourth frame (14) connected end to end in sequence. The rear floor (41) and the two middle floor longitudinal beams (43) are connected to the first frame (11). The front floor (42) and one middle floor longitudinal beam (43) are connected to the second frame (12). The front floor (42) and the third frame (13) are connected. The front floor (42) and the other middle floor longitudinal beam (43) are connected to the fourth frame (14).
9. The vehicle body reinforcement structure according to any one of claims 1-8, characterized in that, The reinforcing frame (1) and the reinforcing mesh (2) are integrally formed structures.
10. A convertible, characterized in that, Includes the vehicle body reinforcement structure as described in any one of claims 1-9.