Vehicle body floor assembly and vehicle

Abstract

The application discloses a vehicle body floor assembly and a vehicle, and relates to the technical field of vehicles, wherein the vehicle body floor assembly comprises a vehicle body floor and a mounting support, the mounting support comprises a first support, a second support and a third support, the second support and the third support are arranged at intervals along the Y direction of the vehicle and are both connected to the first support, and the second support and the third support are both connected to the vehicle body floor and are adapted to provide support installation for the rear-row seats of the vehicle. The technical scheme provided by the application can improve the support strength of the vehicle body floor on the seats.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a vehicle body floor assembly and a vehicle. Background Technology

[0002] As car seats continue to upgrade in configuration and performance, their overall weight also increases accordingly. Simultaneously, the requirements for seat safety performance are also rising. During a vehicle collision, the structural safety of the seat is directly related to the personal safety of the occupants.

[0003] In the event of a collision, to ensure occupant safety, the seats must be reliably secured to the vehicle floor and their displacement effectively limited to prevent occupants from sliding out. The increased weight of the seats further necessitates stronger support from the vehicle floor to ensure that the seats do not loosen or shift under extreme conditions, thus maintaining their intended safety protection function. Summary of the Invention

[0004] The main objective of this invention is to provide a vehicle body floor assembly and vehicle that enhances the support strength of the vehicle body floor for seats.

[0005] To achieve the above objectives, the present invention provides a vehicle floor assembly comprising: Vehicle body floor; and The mounting bracket includes a first bracket, a second bracket, and a third bracket. The second bracket and the third bracket are spaced apart along the Y direction of the vehicle and are both connected to the first bracket. The second bracket and the third bracket are both connected to the vehicle floor and are adapted to provide support for the installation of the rear seats of the vehicle.

[0006] In one embodiment, the second bracket includes a first support rod and a second support rod extending along the X direction of the vehicle, and the third bracket includes a third support rod and a fourth support rod extending along the X direction of the vehicle. The second support rod is disposed close to the third support rod. The first support rod and the second support rod are adapted to support two base frames extending along the X direction of the vehicle for mounting the left seat of the rear seat, and the third support rod and the fourth support rod are adapted to support two base frames extending along the X direction of the vehicle for mounting the right seat of the rear seat.

[0007] In one embodiment, the first support rod and the second support rod are each provided with a plurality of first connection points distributed along the X direction. The first connection points are used to connect with the two base frames of the left seat extending along the X direction of the vehicle. The third support rod and the fourth support rod are each provided with a plurality of second connection points distributed along the X direction. The second connection points are used to connect with the two base frames of the right seat extending along the X direction of the vehicle.

[0008] In one embodiment, the bottom surface of the vehicle floor is provided with a first longitudinal beam and a second longitudinal beam, the second support rod is connected to the first bracket, the first support rod is spaced apart from the first bracket, the first support rod is connected to the first longitudinal beam, the third support rod is connected to the first bracket, the fourth support rod is spaced apart from the first bracket, and the fourth support rod is connected to the second longitudinal beam.

[0009] In one embodiment, the second bracket further includes a plurality of first bridging rods connecting the first support rod and the second support rod, and the third bracket further includes a plurality of second bridging rods connecting the third support rod and the fourth support rod.

[0010] In one embodiment, the second support rod is provided with a first mounting portion, and the third support rod is provided with a second mounting portion. The first mounting portion and the second mounting portion are used for mounting the middle seat of the rear seats.

[0011] In one embodiment, the vehicle floor includes a rear floor and a middle floor. The first support rod and the fourth support rod are connected to the rear floor. The second support rod and the third support rod are connected to the rear floor at one end near the first bracket, and to the middle floor at the other end away from the first bracket.

[0012] In one embodiment, the rear floor includes a first segment, a second segment, and a third segment that are sequentially bent and connected in the X direction of the vehicle. The second segment extends in the Z direction, and the first segment and the third segment extend in the X direction. The first bracket has a first reinforcement, a second reinforcement, and a third reinforcement that are sequentially bent and connected. The second bracket and the third bracket are connected to the first reinforcement, the first reinforcement is connected to the first segment, and the third reinforcement is connected to the third segment.

[0013] In one embodiment, the second reinforcement part includes a plurality of reinforcement segments spaced apart in the Y direction of the vehicle, and the third reinforcement part includes reinforcement lugs corresponding to each of the reinforcement segments, with the plurality of reinforcement lugs connected to the third segment.

[0014] In one embodiment, the floor is provided with a first crossbeam and a second crossbeam, and the vehicle floor assembly further includes at least two connecting brackets, the connecting brackets connecting the first crossbeam and the second crossbeam, the second support rod being connected to one of the connecting brackets, and the third support rod being connected to the other connecting bracket.

[0015] In one embodiment, the rear floor is die-cast.

[0016] The present invention also proposes a vehicle including the above-described vehicle body floor assembly.

[0017] In one embodiment, the vehicle further includes a rear seat and a rear seatbelt structure, the rear seat being disposed on the mounting bracket and the rear seatbelt structure being disposed on the rear seat.

[0018] The technical solution of this invention connects the second and third supports into a single unit using a first bracket. In this way, the first bracket can transfer and redistribute load between the second and third supports. When there is a significant difference in force between the second and third supports, the first bracket can transfer a portion of the force from the support with the greater force to the support with the lesser force, resulting in a more even distribution of force on the vehicle floor. For example, when someone is sitting on one side of the rear seat and no one is sitting on the other, or when there is a significant difference in weight between the passengers on both sides of the rear seat, the first bracket transfers a portion of the force from the support with the greater force to the support with the lesser force, making the force distribution on the vehicle floor more even. Particularly in vehicle collision conditions, this structure can also achieve lateral transfer and dispersion of impact energy through the first bracket, effectively mitigating the instantaneous impact of the rear seats on the vehicle floor, reducing the risk of localized tearing or deformation of the vehicle floor, improving the overall passive safety performance of the vehicle body, and thus enhancing the support strength of the vehicle floor components for the seats. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A first-view structural schematic diagram of an embodiment of the vehicle floor assembly provided by the present invention; Figure 2 A second-view structural schematic diagram of an embodiment of the vehicle floor assembly provided by the present invention; Figure 3 A first exploded structural diagram of the vehicle floor assembly provided by the present invention; Figure 4 A second exploded structural diagram of the vehicle floor assembly provided by the present invention; Figure 5 A schematic diagram of the mounting bracket for the vehicle floor assembly provided by the present invention; Figure 6 A schematic diagram of the structure of the middle floor of the vehicle floor assembly provided by the present invention; Figure 7 This is a schematic diagram of a portion of the vehicle structure provided by the present invention.

[0021] Explanation of icon numbers: 10. Vehicle floor assembly; 20. Rear seats; 21. Left seat; 22. Right seat; 23. Middle seat; 30. Rear seatbelt structure; 100. Vehicle floor; 110. First longitudinal beam; 120. Second longitudinal beam; 130. Rear floor; 131. First section; 132. Second section; 133. Third section; 134. Third crossbeam; 140. Middle floor; 141. First crossbeam; 142. Second crossbeam; 150. Assembly area; 200. Mounting bracket; 210. First bracket; 21 1. First reinforcement part; 212. Second reinforcement part; 212a. Reinforcement section; 213. Third reinforcement part; 213a. Reinforcement lug; 220. Second bracket; 221. First support rod; 222. Second support rod; 223. First connection point; 224. First bridging rod; 225. First mounting part; 230. Third bracket; 231. Third support rod; 232. Fourth support rod; 233. Second connection point; 234. Second bridging rod; 235. Second mounting part; 300. Connecting bracket.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes a vehicle body floor 100 component 10.

[0027] Please see Figure 1 , Figure 4 and Figure 7 In one embodiment of the present invention, the vehicle floor 100 assembly 10 includes a vehicle floor 100 and a mounting bracket 200. The mounting bracket 200 includes a first bracket 210, a second bracket 220 and a third bracket 230. The second bracket 220 and the third bracket 230 are spaced apart along the Y direction of the vehicle and are both connected to the first bracket 210. The second bracket 220 and the third bracket 230 are both connected to the vehicle floor 100 and are adapted to provide support for the installation of the rear seats 20 of the vehicle.

[0028] The technical solution of the present invention utilizes a first bracket 210 to connect the second bracket 220 and the third bracket 230 into a single unit. Thus, the first bracket 210 can play a role in load transfer and redistribution between the second bracket 220 and the third bracket 230. When the forces on the second bracket 220 and the third bracket 230 differ significantly, the first bracket 210 can transfer a portion of the force on the larger force-bearing component to the smaller force-bearing component, resulting in a more uniform force distribution on the vehicle floor 100. For example, when someone is sitting on one side of the rear seat 20 while the other side is empty, or when there is a significant weight difference between the occupants on both sides of the rear seat 20, the first bracket 210 can transfer a portion of the force on the larger force-bearing component to the smaller force-bearing component, further enhancing the uniform force distribution on the vehicle floor 100. Especially in vehicle collision conditions, this structure can also achieve lateral transmission and dispersion of impact energy through the first bracket 210, effectively reducing the instantaneous impact of the rear seat 20 on the vehicle floor 100, reducing the risk of local tearing or deformation of the vehicle floor 100, improving the overall passive safety performance of the vehicle body, and thus improving the support strength of the vehicle floor 100 for the seats.

[0029] When assembling the rear seats 20, the seat frame of the rear seats 20 is first connected to the mounting bracket 200, and the mounting bracket 200 is then connected to the vehicle floor 100. This sequence divides the assembly process into two distinct stages: first, in the sub-assembly stage, the seat frame of the rear seats 20 is pre-assembled with the mounting bracket 200 to form a seat module; then, in the final assembly stage, the module is installed as a whole onto the vehicle floor 100. Modular assembly facilitates division of labor and parallel operations on the production line, improves assembly accuracy, shortens main line operation time, and facilitates individual inspection and adjustment during the sub-assembly stage.

[0030] It should be noted that in this scheme, the X direction refers to the vehicle's front-to-back direction, the Y direction refers to the vehicle's left-to-right direction, and the Z direction refers to the vehicle's up-to-down direction.

[0031] Optionally, the second bracket 220 includes a first support rod 221 and a second support rod 222 extending along the X direction of the vehicle, and the third bracket 230 includes a third support rod 231 and a fourth support rod 232 extending along the X direction of the vehicle. The second support rod 222 is disposed close to the third support rod 231. The first support rod 221 and the second support rod 222 are adapted to support the two base frames extending along the X direction of the vehicle for the left seat 21 of the rear seat 20, respectively. The third support rod 231 and the fourth support rod 232 are adapted to support the two base frames extending along the X direction of the vehicle for the right seat 22 of the rear seat 20, respectively. It can be understood that the first support rod 221 and the second support rod 222 together constitute the support unit of the left seat 21, and the third support rod 231 and the fourth support rod 232 together constitute the support unit of the right seat 22, thereby providing independent and stable two-point support for both the left seat 21 and the right seat 22. This design ensures that the force is transmitted directly along the seat base frame to the first support rod 221, the second support rod 222, the third support rod 231 and the fourth support rod 232, and then to the vehicle floor 100, thereby dispersing the impact energy of the collision, reducing the local impact on the vehicle floor 100 and effectively reducing the risk of floor tearing.

[0032] In addition, the first support rod 221 and the second support rod 222 extending along the X direction of the vehicle are used to support the two base frames of the left seat 21 extending along the X direction of the vehicle, and the third support rod 231 and the fourth support rod 232 extending along the X direction of the vehicle are used to support the two base frames of the right seat 22 extending along the X direction of the vehicle. This ensures that the force bearing direction is consistent throughout the entire force transmission process, avoiding bending and torsional instability caused by different force transmission directions.

[0033] Furthermore, the first support rod 221 and the second support rod 222 are each provided with a plurality of first connection points 223 distributed along the X direction. The first connection points 223 are used to connect with the two base frames of the left seat 21 extending along the vehicle X direction. The third support rod 231 and the fourth support rod 232 are each provided with a plurality of second connection points 233 distributed along the X direction. The second connection points 233 are used to connect with the two base frames of the right seat 22 extending along the vehicle X direction. It can be understood that since the plurality of first connection points 223 and second connection points 233 are all distributed along the X direction, and the seat base frames also extend along the X direction, this arrangement ensures that the orientation of the connection points is consistent with the load-bearing direction of the seat frame. This alignment design enables the load to be transmitted more directly and smoothly along the seat frame to the corresponding support rod, avoiding bending and torsional instability caused by different force transmission directions, while reducing the turning and local concentration during the force transmission process, thereby significantly improving the force transmission efficiency and reliability of the connection points, and also providing support for the overall structure to maintain a stable connection under dynamic loads.

[0034] Secondly, this solution sets multiple first connection points 223 and second connection points 233 distributed along the X direction to form a balanced connection support between the front and rear, so that the mounting bracket 200 is subjected to uniform force, avoiding local excessive force and the problem of local tearing and bending of the second bracket 220 and the third bracket 230.

[0035] In one embodiment, the bottom surface of the vehicle floor 100 is provided with a first longitudinal beam 110 and a second longitudinal beam 120. The second support rod 222 is connected to the first bracket 210, the first support rod 221 is spaced apart from the first bracket 210, the first support rod 221 is connected to the first longitudinal beam 110, the third support rod 231 is connected to the first bracket 210, and the fourth support rod 232 is spaced apart from the first bracket 210 and connected to the second longitudinal beam 120. This connection design forms a differentiated force transmission path: the second support rod 222 and the third support rod 231 transmit the seat load to the first bracket 210, and the first bracket 210 achieves lateral balance and dispersion of the force on the left and right sides; at the same time, the first support rod 221 and the fourth support rod 232 respectively directly guide the load to the first longitudinal beam 110 and the second longitudinal beam 120, and bear the load with the help of the vehicle body main longitudinal beam structure, dispersing the force on the second bracket 220 and the third bracket 230. This arrangement avoids the force of all support rods of the second bracket 220 and the third bracket 230 being concentrated on the first bracket 210, thereby reducing the risk of local stress concentration, realizing the multi-path distribution of load to the vehicle frame, and enhancing the stability of the overall structure under dynamic and impact loads.

[0036] It should be understood that the above is only a preferred embodiment, and the present invention is not limited thereto. In other embodiments, the following configuration may also be adopted: the second support rod 222 and the first support rod 221 are both connected to the first bracket 210, and the first support rod 221 is also connected to the first longitudinal beam 110; the third support rod 231 and the fourth support rod 232 are both connected to the first bracket 210, and the fourth support rod 232 is also connected to the second longitudinal beam 120. This configuration, while ensuring that the first bracket 210 plays a role in lateral force equalization, further provides an auxiliary force transmission path through the longitudinal beam, and can be selected and adjusted according to specific vehicle body structure and performance requirements.

[0037] Optionally, the second bracket 220 further includes a plurality of first bridging rods 224 connecting the first support rod 221 and the second support rod 222, and the third bracket 230 further includes a plurality of second bridging rods 234 connecting the third support rod 231 and the fourth support rod 232. It can be understood that this structure forms a stable lateral connection within the support units of the second bracket 220 and the third bracket 230, thereby significantly enhancing the overall rigidity and torsional resistance of the support rod system. When subjected to asymmetrical loads or collision impacts, the bridging rods can effectively constrain the relative deformation of the support rods, promoting uniform load transfer between adjacent support rods and avoiding local stress concentration. Simultaneously, this design further improves the integrity and reliability of the connection interface between the seat and the vehicle floor 100, helping to maintain structural stability and the continuity of the force transmission path under dynamic operating conditions. It should be understood that the above is only a preferred embodiment, and the present invention is not limited thereto. In other embodiments, the following configuration may also be adopted: the second bracket 220 may not be provided with the first bridging rods 224, and the third bracket 230 may not be provided with the second bridging rods 234.

[0038] Reference Figure 4 Optionally, the second support rod 222 is provided with a first mounting portion 225, and the third support rod 231 is provided with a second mounting portion 235. The first mounting portion 225 and the second mounting portion 235 are used for mounting the middle seat 23 of the rear seat 20. It can be understood that this design allows the load of the middle seat 23 to be directly transferred to the second support rod 222 and the third support rod 231 through the first mounting portion 225 and the second mounting portion 235, and then introduced into the structure of the vehicle floor 100. This force transmission path is clear and direct, which helps to effectively distribute the force on the middle seat 23 to the existing reinforced support system on both sides, improving the uniformity and reliability of local load bearing.

[0039] Furthermore, by pre-setting the first mounting portion 225 and the second mounting portion 235 on the second support rod 222 and the third support rod 231 respectively, the middle seat 23 can be selectively installed or not installed according to the vehicle configuration requirements. This design significantly enhances the platform adaptability of the vehicle floor 100 component 10, enabling it to flexibly adapt to vehicles with different seating layouts such as four-seat and five-seat configurations, thereby improving the commonality of parts and the flexibility of vehicle development.

[0040] Furthermore, both the first mounting portion 225 and the second mounting portion 235 are laterally protruding mounting posts. This facilitates the installation of the middle seat 23 and also enhances the support strength of the first mounting portion 225 and the second mounting portion 235. Of course, this solution is not limited to this. In other embodiments, the first mounting portion 225 and the second mounting portion 235 may also be respectively disposed on the bodies of the second support rod 222 and the third support rod 231, with the middle seat 23 having laterally protruding mounting lugs corresponding to the first mounting portion 225 and the second mounting portion 235.

[0041] Furthermore, the middle seat 23 is provided with a first mounting part and a second mounting part along the X direction. The first mounting part is used to connect with the first mounting part 225 and the second mounting part 235, and the second mounting part is used to connect with the vehicle floor 100. This can distribute the force on the middle seat 23, thereby effectively avoiding stress concentration at a single connection point and reducing the risk of local deformation or damage to the vehicle floor 100 under dynamic or impact loads. At the same time, the dual connection point layout also enhances the installation rigidity and overall stability of the middle seat 23, further improving the safety performance and structural durability of the rear seat 20 assembly.

[0042] Optionally, the vehicle floor 100 includes a rear floor 130 and a middle floor 140. The first support rod 221 and the fourth support rod 232 are connected to the rear floor 130. The second support rod 222 and the third support rod 231 are connected to the rear floor 130 at one end near the first bracket 210, and the other end, away from the first bracket 210, spans the splicing area 150 between the rear floor 130 and the middle floor 140 and is connected to the middle floor 140. It can be understood that this design, by connecting one end of the second support rod 221 and the third support rod 231 to the rear floor 130 and the other end, spans the splicing area 150 and is connected to the middle floor 140, physically avoids the splicing area 150 between the rear floor 130 and the middle floor 140, which is a weak part with a sudden change in structural stiffness and is prone to bending. This allows the load from the rear seat 20, especially the impact force, to be directly and continuously transferred to the front floor 140 area, which has greater rigidity, via the support rods, avoiding the aggravation of structural deformation caused by the concentration of load in the splicing area 150. Secondly, under collision conditions, the huge inertial force will cause the rear seat 20 to tend to move forward. If the support rods are only connected to the rear floor 130, the bending deformation of the splicing area 150 will cause the seat support points to shift accordingly. This solution, through a "cross-over" connection, directly guides the forward load of the rear seat 20 to the floor 140, and utilizes the structural stability of the floor 140 to provide additional constraint anchor points for the seat in the fore-and-aft direction, thereby effectively limiting the longitudinal displacement of the seat in a collision and ensuring the effective operating space of the occupant restraint system. In addition, the crossing of the splicing area 150 by the second support rod 221 and the third support rod 231 essentially forms a "structural bridge" above this area, which enhances the local rigidity and overall bending resistance of the vehicle floor 100 in the seat mounting area. This not only reduces the risk of the floor tearing or crushing under impact, but also improves the integrity of the passenger compartment during a collision through more stable seat mounting points, thus making a positive contribution to the overall passive safety performance of the vehicle. Of course, this solution is not limited to this. In other embodiments, the vehicle floor 100 can also be an integral structure, with the first support rod 221, the second support rod 222, the third support rod 231, and the fourth support rod 232 connected to the vehicle floor 100.

[0043] Furthermore, the first support rod 221 and the fourth support rod are only connected to the rear floor 130, which can avoid interference between the first support rod 221 and the fourth support rod and components such as the upper speed limiter of the rear floor 130 of the vehicle.

[0044] The overlapping areas of the middle floor 140 and the rear floor 130 are both flat panel designs.

[0045] Furthermore, a third crossbeam 134 is provided on the bottom surface of the rear floor 130. The third crossbeam 134 is located close to the splicing area 150, which helps to improve the strength of the rear floor 130.

[0046] Optionally, the first bracket 210 is connected to the rear floor 130. The first bracket 210 is located behind the rear seat 20. This arrangement can enhance the connection strength between the rear of the mounting bracket 200 and the vehicle floor 100, optimize the load transfer path from the seat to the rear floor 130, and thus improve the load-bearing capacity of the rear area of ​​the rear floor 130. This achieves force balance in the fore-and-aft direction of the seat, effectively suppresses the deformation of the vehicle floor 100 under dynamic or collision conditions, and controls the displacement of the seat during impact, ensuring occupant safety and the integrity of the vehicle body structure.

[0047] Reference Figure 5 Optionally, the rear floor 130 includes a first segment 131, a second segment 132, and a third segment 133 that are sequentially bent and connected in the X direction of the vehicle. The second segment 132 extends in the Z direction, and the first segment 131 and the third segment 133 extend in the X direction. The first bracket 210 has a first reinforcing part 211, a second reinforcing part 212, and a third reinforcing part 213 that are sequentially bent and connected. The second bracket 220 and the third bracket 230 are connected to the first reinforcing part 211. The first reinforcing part 211 is connected to the first segment 131, and the third reinforcing part 213 is connected to the third segment 133. It can be understood that the first reinforcing part 211 of the first bracket 210 is connected to the first segment 131 of the rear floor 130, and the third reinforcing part 213 is connected to the third segment 133, thereby realizing the geometric and mechanical coupling between the mounting bracket 200 and the vehicle floor 100. This not only improves the connection strength and integrity between the bracket and the floor, but also allows the load from the rear seat 20 to be more smoothly transferred to different sections of the rear floor 130 through the first bracket 210, thereby improving the local stress distribution, avoiding stress concentration in the bending transition area, and thus enhancing the load-bearing stability and durability of the rear floor 130 under complex loads. It is understood that the above embodiments are merely examples and not the only limitation of this solution. In other embodiments, if the rear floor 130 has a flat plate structure (including inclined, horizontal, or plate-like structures with a certain curvature), the first bracket 210 can also be configured as a planar bracket structure adapted to the surface of the rear floor 130.

[0048] Furthermore, this solution designs a first support rod 221, a second support rod 222, a third support rod 231, and a fourth support rod 232 extending along the X direction; a first bridging rod 224 connecting the first support rod 221 and the second support rod 222; a second bridging rod 234 connecting the third support rod 231 and the fourth support rod 232; a first reinforcing section 212a extending along the Y direction; and multiple reinforcing sections 212a and reinforcing lugs 213a spaced apart along the Y direction of the vehicle, thereby forming a multi-layered, grid-like force transmission frame. This structure can effectively suppress the deformation of the rear floor 130 while providing efficient and stable connection support for the rear of the rear seat 20, and distributing the uneven load transmitted by the seat to both sides of the rear floor 130, thereby significantly improving the overall strength and load-bearing coordination of the rear floor 130.

[0049] Furthermore, in this embodiment, the second reinforcement part 212 includes a plurality of reinforcement segments 212a spaced apart in the Y direction of the vehicle, and the third reinforcement part 213 includes reinforcement lugs 213a corresponding to each of the reinforcement segments 212a. The plurality of reinforcement lugs 213a are connected to the third segment 133. It can be understood that the plurality of reinforcement segments 212a are distributed at intervals along the Y direction and connected to the third segment 133 of the rear floor 130 through the corresponding reinforcement lugs 213a, which significantly increases the number of connection points between the first bracket 210 and the rear floor 130. This arrangement can avoid stress concentration in a single part when under load, and make the load more evenly transmitted to the third segment 133 in the Y direction, effectively improving the overall rigidity and stability of the connection area. Secondly, the spaced-apart reinforcing sections 212a and reinforcing lugs 213a form a set of longitudinally arranged connecting units between the first support 210 and the floor. This provides better constraint when subjected to lateral (Y-direction) or torsional loads, reduces the deformation of the support relative to the floor, and thus enhances the torsional and bending resistance of the local structure, which is particularly beneficial for dealing with complex stress states under extreme conditions such as collisions. Of course, this solution is not limited to this. In other embodiments, the second reinforcing part 212 may also be a reinforcing rib extending along the Y-direction, and the third reinforcing part 213 may be configured as an installation rib extending along the Y-direction that matches the reinforcing rib, or as a plurality of reinforcing lugs 213a spaced apart along the Y-direction.

[0050] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7In one embodiment, the middle floor 140 is provided with a first crossbeam 141 and a second crossbeam 142. The vehicle floor 100 assembly 10 also includes at least two connecting brackets 300. The connecting brackets 300 connect the first crossbeam 141 and the second crossbeam 142. The second support rod 222 is connected to one of the connecting brackets 300, and the third support rod 231 is connected to the other connecting bracket 300. The connecting brackets 300 act as reinforcing beams or bridging plates between the crossbeams, improving the bending and torsional stiffness of this area in the Z and Y directions. Under collision or bump conditions, this structure can significantly suppress local deformation of the middle floor 140 near the support point, thereby providing a more stable installation base for the rear seats 20 and ensuring the stability of the occupant's seating posture and safe space. The second support rod 222 and the third support rod 231 are respectively connected to different connecting brackets 300, so that the load of the left and right seats can be transferred to the crossbeam system through independent connecting brackets 300. This "one rod, one bracket" connection method helps reduce the volume of the connecting bracket 300, thereby improving the bending and torsional stiffness of this area in the Z and Y directions while minimizing the encroachment of the connecting bracket 300 on the vehicle body space. Furthermore, by connecting the first crossbeam 141 and the second crossbeam 142 with the connecting bracket 300, a stable lateral frame is essentially constructed in the mid-floor 140 area. The support rods (second support rod 222, third support rod 231) are connected to different connecting brackets 300, allowing the load of the rear seat 20 to be efficiently transferred to the main body frame structure via the path of support rod → connecting bracket 300 → crossbeam. This design improves the mechanical coupling between the seat mounting point and the main body structure, enhancing the overall integrity of the local assembly under dynamic and impact loads.

[0051] In this embodiment, the first crossbeam 141 is located on the top surface of the intermediate floor 140, and the second crossbeam 142 is located on the bottom surface of the intermediate floor 140. The second crossbeam 142 is positioned close to the splicing area 150 to avoid interference between the second crossbeam 142 and the second support rod 222 and the third support rod 231. Furthermore, the design of the first crossbeam 141 and the second crossbeam 142 helps to improve the strength of the intermediate floor 140.

[0052] Optionally, the rear floor 130 is die-cast. It is understood that the die-casting process allows floor components with complex curved surfaces, reinforcing ribs, local bosses, or irregular connection structures to be formed in one piece, thus integrating an assembly that would otherwise require welding multiple stamped parts into a single integral part. This effectively reduces the number of welds and connection points, avoids deformation, residual stress, and potential defects caused by welding, and significantly improves the overall rigidity and dimensional stability of the rear floor 130. Through die-casting mold design, locally thickened, internally reinforcing ribs, or integral boss structures can be directly formed at key stress-bearing locations such as seat mounting points, longitudinal beam connection areas, and bending transition sections. This gives the rear floor 130 better stress distribution and resistance to deformation when subjected to seat loads and impacts, especially beneficial for improving the strength and durability of the mounting bracket 200 connection area.

[0053] Reference Figure 7 The present invention also proposes a vehicle including a body floor 100 assembly 10. The specific structure of the body floor 100 assembly 10 is as described in the above embodiments. Since the vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0054] In one embodiment, the vehicle further includes a rear seat 20 and a rear seatbelt structure 30. The rear seat 20 is mounted on the mounting bracket 200, and the rear seatbelt structure 30 is mounted on the rear seat 20. It is understood that mounting the rear seatbelt structure 30 on the rear seat 20 allows the seatbelt to move with the seat as a whole, thereby avoiding "neck choking" or constriction discomfort caused by changes in the relative position of the seatbelt fixing point and the seat during vehicle dynamics or seat adjustments, thus improving passenger comfort and safety.

[0055] Furthermore, this arrangement optimizes the force transmission path during a collision: the load borne by the seatbelt is first transferred to the rear seat 20, and then distributed to the vehicle floor 100 structure via the mounting bracket 200. This path can more directly and evenly guide the impact force into the main load-bearing frame of the vehicle body, avoiding the concentration of load on local floor areas, thereby reducing the risk of tearing or deformation of the rear floor 130 under extreme conditions, which is beneficial to improving the integrity of the overall vehicle structure and passive safety performance.

[0056] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A vehicle floor assembly, characterized in that, include: Vehicle body floor; and The mounting bracket includes a first bracket, a second bracket, and a third bracket. The second bracket and the third bracket are spaced apart along the Y direction of the vehicle and are both connected to the first bracket. The second bracket and the third bracket are both connected to the vehicle floor and are adapted to provide support for the installation of the rear seats of the vehicle.

2. The vehicle floor assembly as claimed in claim 1, characterized in that, The second bracket includes a first support rod and a second support rod extending along the X direction of the vehicle, and the third bracket includes a third support rod and a fourth support rod extending along the X direction of the vehicle. The second support rod is disposed close to the third support rod. The first support rod and the second support rod are adapted to support two base frames extending along the X direction of the vehicle for mounting the left seat of the rear seat, and the third support rod and the fourth support rod are adapted to support two base frames extending along the X direction of the vehicle for mounting the right seat of the rear seat.

3. The vehicle floor assembly as described in claim 2, characterized in that, The first support rod and the second support rod are each provided with a plurality of first connection points distributed along the X direction. The first connection points are used to connect with the two base frames of the left seat extending along the X direction of the vehicle. The third support rod and the fourth support rod are each provided with a plurality of second connection points distributed along the X direction. The second connection points are used to connect with the two base frames of the right seat extending along the X direction of the vehicle.

4. The vehicle floor assembly as claimed in claim 2, characterized in that, The bottom surface of the vehicle floor is provided with a first longitudinal beam and a second longitudinal beam. The second support rod is connected to the first bracket. The first support rod is spaced apart from the first bracket. The first support rod is connected to the first longitudinal beam. The third support rod is connected to the first bracket. The fourth support rod is spaced apart from the first bracket. The fourth support rod is connected to the second longitudinal beam.

5. The vehicle floor assembly as claimed in claim 4, characterized in that, The second bracket further includes a plurality of first bridging rods connecting the first support rod and the second support rod, and the third bracket further includes a plurality of second bridging rods connecting the third support rod and the fourth support rod.

6. The vehicle floor assembly as claimed in claim 2, characterized in that, The second support rod is provided with a first mounting part, and the third support rod is provided with a second mounting part. The first mounting part and the second mounting part are used for mounting the middle seat of the rear seats.

7. The vehicle floor assembly as claimed in claim 2, characterized in that, The vehicle floor includes a rear floor and a middle floor. The first support rod and the fourth support rod are connected to the rear floor. The second support rod and the third support rod are connected to the rear floor at one end near the first bracket, and the other end away from the first bracket spans the splicing area of ​​the rear floor and the middle floor and is connected to the middle floor.

8. The vehicle floor assembly as claimed in claim 7, characterized in that, The rear floor includes a first segment, a second segment, and a third segment that are sequentially bent and connected in the X direction of the vehicle. The second segment extends in the Z direction, and the first segment and the third segment extend in the X direction. The first bracket has a first reinforcement part, a second reinforcement part, and a third reinforcement part that are sequentially bent and connected. The second bracket and the third bracket are connected to the first reinforcement part. The first reinforcement part is connected to the first segment, and the third reinforcement part is connected to the third segment.

9. The vehicle floor assembly as claimed in claim 8, characterized in that, The second reinforcement part includes a plurality of reinforcement segments spaced apart in the Y direction of the vehicle, and the third reinforcement part includes reinforcement lugs corresponding to each of the reinforcement segments, and the plurality of reinforcement lugs are connected to the third segment.

10. The vehicle floor assembly as claimed in claim 7, characterized in that, The floor is provided with a first crossbeam and a second crossbeam. The vehicle floor assembly also includes at least two connecting brackets. The connecting brackets connect the first crossbeam and the second crossbeam. The second support rod is connected to one of the connecting brackets, and the third support rod is connected to the other connecting bracket.

11. The vehicle floor assembly as claimed in claim 7, characterized in that, The rear floor is die-cast.

12. A vehicle, characterized in that, Includes the vehicle floor assembly as described in any one of claims 1 to 11.

13. The vehicle as claimed in claim 12, characterized in that, The vehicle also includes a rear seat and a rear seat belt structure, the rear seat being mounted on the mounting bracket and the rear seat belt structure being mounted on the rear seat.

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