Floor cross member structure in a vehicle body

Abstract

The application discloses a floor cross beam structure of a vehicle body, which comprises a cross beam body (1), seven seat installation supports (2) are arranged in the cross beam body (1), five seat installation supports (3) are arranged on the cross beam body (1), and five safety belt installation supports (4) are arranged on the cross beam body (1). The cross beam body (1) is arranged in a U shape, the seven seat supports are arranged in the cross beam body (1) and are welded, seven seats can be directly installed, when the vehicle is suitable for five seats, the seven seat supports in the cross beam body (1) can provide strength support for five seat installation points, the effect of the common cross beam body (1) of five seats and seven seats is achieved, the installation of different seats is considered, the development of molds, clamps and other toolings is reduced, and the production efficiency of the modularization is improved.

Description

Technical Field

[0001] This invention belongs to the field of vehicle technology, specifically, it relates to a floor beam structure in a vehicle body. Background Technology

[0002] As competition intensifies in the automotive industry, the passenger vehicle market is increasingly demanding greater diversity in vehicle models and shorter development cycles. Automotive design and development typically use the lower body as a platform for expansion development, ensuring the commonality of the lower platform and minimizing the development and verification cycle to meet market demands.

[0003] A patent application with patent number 202210912853.7, published on October 4, 2022, discloses a rear floor assembly and an SUV vehicle adaptable to different seating configurations, relating to the field of automotive manufacturing technology. The rear floor assembly includes a five-seat SUV configuration and a seven-seat SUV configuration. When the rear floor assembly is in seven-seat SUV mode, several expansion mounting holes are provided on the crossbeams and longitudinal beams of the rear floor frame; these expansion mounting holes are used to install the third-row seats. The rear floor assembly also includes seat rails, with the upper surfaces of the first and second panels mounting the seat rails under the second-row seats. When the rear floor assembly is in five-seat SUV mode, it further includes a seat cushion frame, with the upper surface of the second panel of the rear floor assembly mounting the seat cushion frame under the second-row seats. The rear floor assembly and SUV vehicle of this application exhibit strong compatibility, capable of simultaneously adapting to the seating structures of both five-seat and seven-seat SUVs.

[0004] In the development of mid-size SUVs, the different seat installation structures for five-seat and seven-seat vehicles usually result in two different floor beam structures. Therefore, how to balance the two different seat installations in the vehicle body structure and reduce the development of tooling such as molds and fixtures is a challenge in this technical field. Summary of the Invention

[0005] The present invention aims to provide a floor beam structure in a vehicle body that can be installed in both five-seat and seven-seat configurations.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a floor crossbeam structure in a vehicle body, comprising a crossbeam body, a seven-seat seat mounting bracket on the crossbeam body, the crossbeam body having a U-shaped cross section, the seven-seat seat mounting bracket being disposed inside the crossbeam body, and a panel being provided on one side of the seven-seat seat mounting bracket, the panel being fitted to the inner wall of the crossbeam body, a side panel being provided on the other side of the seven-seat seat mounting bracket, the side panel being fitted to one side of the crossbeam body, a seven-seat seat mounting flange being provided at one end of the seven-seat seat mounting bracket, the seven-seat seat mounting flange being installed inside the crossbeam body, and a side flange being provided at the other end of the seven-seat seat mounting bracket, which is fitted to the inner wall of the crossbeam body, and a five-seat seat mounting bracket and a five-seat seat belt mounting bracket being provided on the crossbeam body.

[0007] The seven-seat mounting bracket has rows of mounting holes, and the seven-seat mounting bracket has a base. The base is truncated cone-shaped, and the mounting holes are located inside the base.

[0008] The five-seat mounting bracket has a U-shaped cross-section. One side of the five-seat mounting bracket is provided with a mounting plate, which is attached to the crossbeam body. The other side of the five-seat mounting bracket is provided with a connector.

[0009] The connector is divided into a connecting plate that is connected to the five-seat mounting bracket. The side of the connecting plate is provided with a support seat. The cross-section of the support seat is U-shaped. The side of the support seat is provided with a five-seat mounting flange.

[0010] The five seat belt mounting brackets are divided into straight plates. One end of the straight plate is provided with a horizontal plate that fits against one side surface of the crossbeam body. The other end of the straight plate is provided with a five-seat seat belt mounting flange. The two sides of the straight plate are provided with concave plates.

[0011] The concave plate is connected to the horizontal plate. The concave plate is divided into a flat plate, an inclined plate, and a vertical plate. The vertical plate is located on both sides of the horizontal plate. The inclined plate is located between the vertical plate and the horizontal plate. The flat plate is located between the inclined plate and the vertical plate.

[0012] The beam body has a main side plate and a secondary side plate on both sides. The main side plate is recessed in the center, the secondary side plate is provided with a groove, and the beam body has a protrusion protruding from the inner surface of the beam body in the center.

[0013] The technical advantages of this invention are as follows: By setting the crossbeam body in a U-shape and inserting the bracket for seven seats into the crossbeam body, the seven-seat seats can be directly installed. When applicable to five-seat vehicles, there is no need to remove the bracket for seven seats; only the bracket for five seats needs to be added to the crossbeam body. The bracket for seven seats that was originally inside the crossbeam body can play an auxiliary reinforcement role, achieving the effect of a common crossbeam body for both five-seat and seven-seat vehicles. This accommodates the installation of different seats, reduces the development of tooling such as molds and fixtures, and improves modular production efficiency. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of a floor beam structure in a vehicle body according to the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of a seven-seat mounting bracket for a floor crossbeam structure in a vehicle body.

[0017] Figure 3 for Figure 1 A schematic diagram of a five-seat mounting bracket for a floor crossbeam structure in a vehicle body.

[0018] Figure 4 for Figure 1 A schematic diagram of a floor beam support and side plate structure in a vehicle body.

[0019] The markings in the diagram are as follows: 1. Crossbeam body; 2. Seven-seat mounting bracket; 21. Panel; 22. Side panel; 23. Seven-seat mounting flange; 24. Side flange; 25. Base; 26. First mounting hole for seven-seat installation; 27. Second mounting hole for seven-seat installation; 28. Third mounting hole for seven-seat installation; 3. Five-seat mounting bracket; 31. Mounting plate; 32. Connecting plate; 33. Support seat; 34. Flanged edge for five-seat installation; 4. Five-seat seat belt mounting bracket; 41. Straight plate; 42. Horizontal plate; 43. Recessed plate; 5. Main side plate; 6. Secondary side plate. Detailed Implementation

[0020] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0021] Please see Figure 1-4 A floor crossbeam structure in a vehicle body includes a crossbeam body 1, a seven-seat seat mounting bracket 2 on the crossbeam body 1, a five-seat seat mounting bracket 3 and a five-seat seat belt mounting bracket 4 on the crossbeam body 1.

[0022] The bracket for the seven seats is inserted into the crossbeam body 1, allowing the seven-seat seats to be installed directly. When used in five-seat vehicles, the bracket for the seven seats does not need to be removed; only the bracket for the five seats needs to be added to the crossbeam body 1. The bracket for the seven seats that was originally inside the crossbeam body 1 can then serve as an auxiliary reinforcement, achieving the effect of using the same crossbeam body 1 for both five-seat and seven-seat vehicles. This accommodates the installation of different seats, reduces the development of tooling such as molds and fixtures, and improves the efficiency of modular production.

[0023] The cross-section of the beam body 1 is U-shaped, which reduces the overall footprint while increasing the area available for installation and overall strength. The beam body 1 has main side plates 5 and secondary side plates 6 on both sides. The seven-seat mounting bracket 2, five-seat mounting bracket 3, and five-seat seatbelt mounting bracket 4 are installed on the beam body 1 via the main side plates 5 and secondary side plates 6. The main side plates 5 and secondary side plates 6 are used to fix the three types of brackets, increasing the contact area and thus enhancing the reliability of the fixation. The center of the main side plate 5 is concave, and the side shape of the main side plate 5 is U-shaped, creating a height difference between the two sides of the beam body 1. This results in different thicknesses at the two ends of the cross-section of the five-seat mounting bracket 3 and the five-seat seatbelt mounting bracket 4 installed at the top of the beam, improving overall strength and reducing the risk of breakage. Simultaneously, the secondary side plate 6 has four rows of recessed grooves, which further increase its strength, reduce the risk of breakage during use, improve safety performance, and reduce the occurrence of accidents.

[0024] The seven-seat mounting bracket 2 is located inside the crossbeam body 1. Since the crossbeam body 1 has a U-shaped cross-section, after the seven-seat mounting bracket 2 is installed, it can be hidden inside the crossbeam body 1. This ensures the installation of seven seats without affecting the installation of the five-seat mounting bracket 3, thus achieving the function of a universal crossbeam for both five-seat and seven-seat vehicles. One side of the seven-seat mounting bracket 2 has a mounting plate 21, which adheres to the inner wall of the crossbeam body 1. The mounting plate 21 is spot-welded to the inner wall surface of the crossbeam body 1, thereby fixing the seven-seat mounting bracket 2 to the crossbeam body 1. The mounting plate 21 also has multiple reinforcing grooves to enhance its strength. The strength of the seven-seat mounting bracket 2 is increased to enhance its overall strength and reduce the occurrence of structural fractures between weld points. The other side of the seven-seat mounting bracket 2 is provided with two side plates 22, which are welded into the recess of the main side plate 5. The main side plate 5 is provided with a recessed groove that matches the side plate 22, so that the side plate 22 can fit more tightly with the crossbeam body 1. At the same time, the recessed groove serves as a positioning function, which facilitates the installation of the seven-seat mounting bracket 2. The two side plates 22 can separate the connection between the side plate 22 and the five-seat mounting bracket 3 and the crossbeam body 1, avoiding mutual interference with the installation. The seven-seat mounting bracket 2 is fixed in the crossbeam body 1 using the mounting plate 21 and the side plates 22.

[0025] The seven-seat mounting bracket 2 has a seven-seat mounting flange 23 at one end, and a boss 7 protruding from the inner surface of the crossbeam body 1 at the center. The seven-seat mounting flange 23 is welded to the boss 7. Since the main body of the seven-seat mounting bracket 2 is higher than the bottom of the crossbeam body 1, by punching a boss 7 upward from the bottom plate of the crossbeam body 1, the shape of the bottom plate of the crossbeam body 1 can be changed to increase strength, and the seven-seat mounting flange 23 can be welded to the boss 7 for easy installation. The other end of the bracket 2 is provided with a side flange 24 that fits against the inner wall of the crossbeam body 1. The side flange 24 is welded to the inner wall surface on both sides of the crossbeam body 1. The cross-sectional shape of the side flange 24 is U-shaped. The seven-seat mounting flange 23 and the side flange 24 are used together to fix both ends of the seven-seat mounting bracket 2 inside the crossbeam body 1. With the cooperation of the side plates 21 and side plates 22 on both sides of the seven-seat mounting bracket 2, the seven-seat mounting bracket 2 is firmly fixed inside the crossbeam body 1, making the seven-seat mounting bracket 2 more secure and reducing the risk of shaking.

[0026] The seven-seat mounting bracket 2 has three mounting holes arranged in a row. These three holes are designated as the first mounting hole 26, the second mounting hole 27, and the third mounting hole 28. The center of the first mounting hole 26 is 18.5mm away from the edge of the right panel 21 of the five-seat mounting bracket 3, and its center is obscured by the five-seat mounting bracket 3. The center of the second mounting hole 27 is 2mm away from the edge of the left panel 21 of the five-seat mounting bracket 3. The center of the second mounting hole 27 is not obstructed by the five-seat mounting bracket 3, and the third mounting hole 28 for the seven-seat mounting is not obstructed by the five-seat mounting bracket 3. This allows for easy sewing of the three mounting holes with butyl patches when installing the five-seat seats. At the same time, the seven-seat mounting bracket 2 provides strength support for the mounting points of the five-seat seats. The seven-seat mounting bracket 2 has a base 25, which is frustum-shaped. The mounting holes are located inside the base 25. The frustum-shaped base 25 can be thickened to prevent the plate from being crushed when tightening the screws.

[0027] The five-seat mounting bracket 3 has a U-shaped cross-section. It is installed on top of the crossbeam body 1, and the five seats are mounted on it. Since the seven-seat mounting bracket 2 is inside the crossbeam body 1, while the five-seat mounting bracket 3 is on top of the crossbeam body 1, they do not interfere with each other during installation. This allows for the installation of the five-seat mounting bracket 3 even if the seven-seat mounting bracket 2 is already installed on the crossbeam body 1. Simultaneously, the seven-seat mounting bracket 2 provides structural support for the mounting points of the five-seat mounting bracket 3. A mounting plate 31 is provided on one side of the five-seat mounting bracket 3, and the mounting plate 31 is welded to the auxiliary... On the side plate 6, a connector is welded to the other side of the five-seat mounting bracket 3. The connector is welded to the main side plate 5. The five-seat mounting bracket 3 is fixed to the crossbeam body 1 from both ends. At the same time, the whole is divided into two parts: the five-seat mounting bracket 3 and the connector. This reduces the difficulty of overall molding. Dividing it into two structures can also improve the structural strength of each structure, making the structure safer to use. In addition, three reinforcing grooves are provided on the top of the five-seat mounting bracket 3 to enhance the strength against transverse shear force and reduce the risk of breakage. The five-seat mounting bracket 3 has multiple mounting holes for installing seats.

[0028] The connector consists of a connecting plate 32 connected to the five-seat mounting bracket 3. The connecting plate 32 is arc-shaped and is fixed to the five-seat mounting bracket 3 by spot welding. The weld points are evenly distributed along the center line of the arc-shaped connecting plate 32, which can improve the overall connection strength and reduce the occurrence of separation. The side of the connecting plate 32 is provided with a support seat 33. The cross-section of the support seat 33 is U-shaped. Since the two side plates 22 on the side of the seven-seat mounting bracket 2 and the support seat 33 are all installed on the main side plate 5, the U-shaped support seat 33 improves the structural strength. At the same time, the connection point between the support seat 33 and the main side plate 5 can be staggered with the side plate 22 to avoid mutual crossing. At the same time, the side plate 22 has been welded to the main side plate 5, which can provide strength support for the welding of the support seat 33. The side of the support seat 33 is provided with a five-seat mounting flange 34. The five-seat mounting flange 34 is used to connect with other structures in the vehicle body to further improve the installation strength.

[0029] The five-seat seat belt mounting bracket 4 is divided into a straight plate 41. One end of the straight plate 41 is provided with a horizontal plate 42 that fits against one side surface of the crossbeam body 1. The straight plate 41 spans across the crossbeam body 1, and the seat belt seat is installed on the straight plate 41. The straight plate 41 is provided with mounting holes for fixing the seat belt seat. The horizontal plate 42 is welded to the auxiliary side plate 6. The other end of the straight plate 41 is provided with a five-seat seat belt mounting flange 44. The five-seat seat belt mounting flange 44 is used to connect with other structures in the vehicle body to further improve the strength of the safety hook. The two sides of the straight plate 41 are provided with concave plates 43, which are welded to the main side plate 5.

[0030] The concave plate 43 is connected to the horizontal plate 42. The concave plate 43 is divided into a flat plate, an inclined plate and a vertical plate. The vertical plate is set on both sides of the straight plate 41, the inclined plate is set between the vertical plate and the horizontal plate 42, and the flat plate is set between the inclined plate and the vertical plate. In addition to fixing the straight plate 41, the concave plate 43 can increase the fracture resistance of the straight plate 41 and effectively improve the overall safety performance of the structure.

[0031] The technical advantages of this invention are as follows: By setting the crossbeam body 1 in a U-shape, the bracket for seven seats is placed inside the crossbeam body 1, so that the seven-seat seats can be directly installed. When applicable to five-seat vehicles, there is no need to remove the bracket for seven seats. Only the bracket for five seats needs to be added to the crossbeam body 1. The bracket for seven seats that was originally inside the crossbeam body 1 can play an auxiliary reinforcement role, thus achieving the effect of using the same crossbeam body 1 for both five-seat and seven-seat vehicles. This takes into account the installation of different seats, reduces the development of tooling such as molds and fixtures, and improves the modular production efficiency.

[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A floor cross member structure in a vehicle body, characterized by: The utility model provides a kind of seven-seat installation support of crossbeam body (1), the crossbeam body (1) is equipped with seven-seat installation support (2) on it, the crossbeam body (1) is U-shaped in cross section, seven-seat installation support (2) is arranged inside the crossbeam body (1), and one side of seven-seat installation support (2) is equipped with sticking plate (21), and sticking plate (21) is attached with the inner wall of crossbeam body (1), the other side of seven-seat installation support (2) is equipped with side plate (22), and side plate (22) is attached on the side of crossbeam body (1), one end of seven-seat installation support (2) is equipped with seven-seat installation flanging (23), and seven-seat installation flanging (23) is installed in crossbeam body (1), the other end of seven-seat installation support (2) is equipped with side flanging (24) attached with the inner wall of crossbeam body (1), and the crossbeam body (1) is equipped with five-seat installation support (3) and five-seat safety belt installation support (4).

2. A floor cross member structure in a vehicle body according to claim 1, characterized by: Seven-seat installation support (2) is equipped with mounting hole in row, and seven-seat installation support (2) is equipped with base (25), and base (25) is circular platform type, and mounting hole is arranged in base (25).

3. The floor cross member structure of claim 1, wherein: Five-seat installation support (3) is U-shaped in cross section, and one side of five-seat installation support (3) is equipped with mounting plate (31), and mounting plate (31) is attached on crossbeam body (1), and the other side of five-seat installation support (3) is equipped with connecting piece.

4. The floor cross member structure of claim 3, wherein: Connecting piece is divided into connecting plate (32) connected with five-seat installation support (3), and the side of connecting plate (32) is equipped with support seat (33), and support seat (33) is concave in cross section, and the side of support seat (33) is equipped with five-seat installation flanging (34).

5. The floor cross member structure of claim 1, wherein: Five-seat safety belt installation support (4) is divided into straight plate (41), and one end of straight plate (41) is equipped with transverse plate (42) attached on the side surface of crossbeam body (1), and the other end of straight plate (41) is equipped with five-seat safety belt installation flanging, and both sides of straight plate (41) are equipped with recessed plate (43).

6. A floor cross member structure in a vehicle body according to claim 5, characterized by: Recessed plate (43) is connected with transverse plate (42), and recessed plate (43) is divided into flat plate, inclined plate and vertical plate, vertical plate is arranged on both sides of straight plate (41), inclined plate is arranged between vertical plate and transverse plate (42), and flat plate is arranged between inclined plate and vertical plate.

7. The floor cross member structure of claim 1, wherein: Both sides of crossbeam body (1) are equipped with main edge plate (5) and auxiliary edge plate (6), the center of main edge plate (5) is recessed, and auxiliary edge plate (6) is equipped with recess, and the center of crossbeam body (1) is equipped with boss (7) protruding the inner surface of crossbeam body (1).

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