Rear floor assembly for vehicle and vehicle

Abstract

The utility model relates to the technical field of automobiles, and discloses a rear floor assembly for a vehicle and the vehicle, the rear floor assembly comprises a left rear longitudinal beam and a right rear longitudinal beam, in the front-back direction of the vehicle, the left rear longitudinal beam comprises a first section, a second section and a third section which are connected in sequence; the right rear longitudinal beam is arranged on the right side of the left rear longitudinal beam, the right rear longitudinal beam and the left rear longitudinal beam are arranged in a spaced mode, the right rear longitudinal beam comprises a fourth section, a fifth section and a sixth section which are sequentially connected in the front-back direction of the vehicle, and in the left-right direction of the vehicle, the fourth section and the first section are oppositely arranged, the fifth section and the second section are oppositely arranged, and the sixth section and the third section are oppositely arranged; in the left-right direction of the vehicle, the distance between the first section and the fourth section is larger than the distance between the second section and the fifth section, the distance between the third section and the sixth section is larger than the distance between the second section and the fifth section, the first section, the second section and the third section are integrally formed parts, and the fourth section, the fifth section and the sixth section are integrally formed parts. According to the vehicle, the available space of the trunk is enlarged.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to a rear floor assembly for a vehicle and the vehicle itself. Background Technology

[0002] The rear floor of a car refers to the structure at the rear of the vehicle body. It is an important component of the car body and, together with the front floor, constitutes the floor structure of the car. The rear floor generally includes the rear floor frame assembly, the rear floor panel assembly, and the rear bulkhead assembly. As the load-bearing structure that supports the rear seats, trunk, subframe, rear shock absorbers, and other structures, the rear floor frame assembly has very high requirements for torsional stiffness, strength, and durability. At the same time, it transmits structural forces during a rear collision through a rear longitudinal beam structure on each side. In the event of a rear collision, the structural strength of the rear longitudinal beams plays a crucial role in protecting the battery, fuel tank, and occupants from injury.

[0003] The traditional rear longitudinal beam structure limits the trunk space and reduces its utilization rate. Therefore, how to improve the usable space of the trunk is a technical problem that urgently needs to be solved. Utility Model Content

[0004] This application provides a rear floor assembly for a vehicle and the vehicle thereof, which expands the usable space of the trunk.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide a rear floor assembly for a vehicle, including a left rear longitudinal beam and a right rear longitudinal beam: along the front-rear direction of the vehicle, the left rear longitudinal beam includes a first segment, a second segment, and a third segment connected in sequence; along the left-right direction of the vehicle, the right rear longitudinal beam is disposed to the right of the left rear longitudinal beam and spaced apart from the left rear longitudinal beam, along the front-rear direction of the vehicle, the right rear longitudinal beam includes a fourth segment, a fifth segment, and a sixth segment connected in sequence, along the left-right direction of the vehicle, the fourth segment and the first segment are arranged opposite to each other, the fifth segment and the second segment are arranged opposite to each other, and the sixth segment and the third segment are arranged opposite to each other;

[0007] Along the left and right direction of the vehicle, the distance between the first and fourth segments is greater than the distance between the second and fifth segments, and the distance between the third and sixth segments is greater than the distance between the second and fifth segments. The first, second, and third segments are integrally formed parts, and the fourth, fifth, and sixth segments are integrally formed parts.

[0008] The rear floor assembly proposed in this application has a greater distance between the third and sixth sections than between the second and fifth sections along the left-right direction of the vehicle. This causes the rear half of the rear longitudinal beam to protrude outward, widening the outer rear of the vehicle and thus expanding the usable space of the vehicle's trunk. The left and right rear longitudinal beams are both integrally molded. This reduces the number of parts in the rear longitudinal beams, thereby reducing the manufacturing, assembly, and welding processes of multiple components, shortening the production cycle, and improving production efficiency. Furthermore, the overall structure has better rigidity and strength, and better force transmission, reducing the occurrence of stress concentration problems that may occur at welding or other connection points. The integrally molded longitudinal beams have stronger fatigue resistance during long-term use, can withstand repeated loads, reduce the risk of structural damage due to fatigue crack propagation, and extend the service life of the vehicle.

[0009] Optionally, along the left-to-right direction, the second segment protrudes beyond the first and third segments, and along the right-to-left direction, the fifth segment protrudes beyond the fourth and sixth segments.

[0010] In the above scheme, the second segment protrudes from the first and third segments along the left-to-right direction, and the fifth segment protrudes from the fourth and sixth segments along the right-to-left direction, forming a structure that contracts towards the center. This allows the second and fifth segments to have more deformation space during a collision. These parts can absorb collision energy through their own deformation, playing a buffering role, thereby effectively reducing the impact force of the collision on the vehicle and passengers and improving the passive safety performance of the vehicle.

[0011] Optionally, along the longitudinal direction of the vehicle, the projection of the first segment at least partially overlaps with the projection of the third segment, and the projection of the fourth segment at least partially overlaps with the projection of the sixth segment.

[0012] In the above scheme, the projections of the first segment and the third segment overlap at least partially, and the projections of the fourth segment and the sixth segment overlap at least partially. This helps the left and right rear longitudinal beams to more evenly bear and transmit the inertial forces in the front-rear direction, as well as the complex stresses generated when driving on uneven road surfaces. This avoids excessive local stress, ensures the mechanical balance of the overall vehicle structure, and improves the stability of the vehicle.

[0013] Optionally, the rear floor assembly also includes a rear floor body, with its two ends connected to the left and right rear longitudinal beams, respectively, along the left-right direction of the vehicle.

[0014] In the above solution, the rear floor body is connected to the left and right rear longitudinal beams, which can form a stable frame structure at the rear of the vehicle, improve the strength and stability of the overall vehicle structure, and make the vehicle more reliable in complex road conditions. At the same time, the rear floor body can provide a flat floor surface for the vehicle interior, which is conducive to the rational use of interior space. For example, a flat floor can facilitate the installation and arrangement of interior seats, interior parts and other components, thereby improving the efficiency of interior space utilization.

[0015] Optionally, the rear floor body includes a front rear floor body and a rear rear floor body, with the front rear floor body located on the front side of the rear rear floor body.

[0016] Along the left-right direction of the vehicle, the two ends of the front body of the rear floor are connected to the first and fourth sections respectively, one end of the rear body of the rear floor is connected to the second and third sections, the other end of the rear body of the rear floor is connected to the fifth and sixth sections, and at least a portion of the rear body of the rear floor protrudes downward relative to the front body of the rear floor.

[0017] In the above solution, at least a portion of the rear body of the rear floor protrudes downward relative to the front body of the rear floor, further increasing the usable space of the trunk and thus improving the user experience.

[0018] Optionally, the rear floor assembly also includes a first rear floor cover and a second rear floor cover. Along the left-right direction of the vehicle, the first rear floor cover is disposed between the rear body of the rear floor and the left rear longitudinal beam, and the second rear floor cover is disposed between the rear body of the rear floor and the right rear longitudinal beam.

[0019] In the above scheme, the first and second rear floor cover plates can increase the strength of the connection between the rear floor assembly and the left and right rear longitudinal beams, making the whole structure a more stable whole. When the vehicle is subjected to external forces, these cover plates can evenly distribute the force to the rear body of the rear floor and the left and right rear longitudinal beams, avoiding stress concentration in local areas, reducing the possibility of structural deformation, improving the overall structural reliability, and thus improving the reliability and durability of the vehicle.

[0020] Optionally, the first rear floor cover plate includes a first horizontal plate and a first vertical plate connected to each other. The first horizontal plate is connected to the upper end of the left rear longitudinal beam, and the first vertical plate is disposed between the rear body of the rear floor and the left rear longitudinal beam.

[0021] The second rear floor cover plate includes a second horizontal plate and a second vertical plate connected to each other. The second horizontal plate is connected to the upper end of the right rear longitudinal beam, and the second vertical plate is disposed between the rear body of the rear floor and the right rear longitudinal beam.

[0022] In the above scheme, the first horizontal plate is connected to the upper end of the left rear longitudinal beam, and the second horizontal plate is connected to the upper end of the right rear longitudinal beam. This enables the rear floor to form a more stable connection structure with the left and right rear longitudinal beams. During vehicle operation, this structure can effectively transmit and disperse forces from different directions, such as forces generated during acceleration, deceleration, and turning, as well as impact forces caused by uneven road surfaces. This reduces stress concentration at the connection points of various components and enhances the reliability of the overall vehicle structure.

[0023] Optionally, the left rear longitudinal beam includes a third horizontal plate and a third vertical plate connected to each other. Along the left-right direction of the vehicle, the third vertical plate is opposite to and spaced apart from the first vertical plate. Along the up-down direction of the vehicle, the third horizontal plate is opposite to and spaced apart from the first horizontal plate. The upper ends of the first horizontal plate and the third vertical plate are connected. The first vertical plate is disposed between the third horizontal plate and the rear body of the rear floor.

[0024] The right rear longitudinal beam includes a fourth horizontal plate and a fourth vertical plate connected to each other. Along the left-right direction of the vehicle, the fourth vertical plate is opposite to and spaced apart from the second vertical plate. Along the up-down direction of the vehicle, the fourth horizontal plate is opposite to and spaced apart from the second horizontal plate. The upper ends of the second horizontal plate and the fourth vertical plate are connected. The second vertical plate is located between the fourth horizontal plate and the rear body of the rear floor.

[0025] In the above scheme, the combined structure of the third horizontal plate and the third vertical plate, and the fourth horizontal plate and the fourth vertical plate increases the bending and torsional strength of the left and right rear longitudinal beams. The horizontal plates can better bear the loads in the vertical direction of the vehicle, such as the weight of the vehicle itself and the weight of passengers and cargo, while the vertical plates play an important role in resisting the lateral and torsional forces generated during vehicle operation, so that the vehicle can maintain structural stability under various driving conditions.

[0026] Optionally, the rear floor assembly also includes a first reinforcing plate and a second reinforcing plate. Along the vertical direction of the vehicle, the first reinforcing plate is disposed at the lower end of the left rear longitudinal beam, and the second reinforcing plate is disposed at the lower end of the right rear longitudinal beam. The projection of the first reinforcing plate at least partially coincides with the projection of the first rear floor cover plate, and the projection of the second reinforcing plate at least partially coincides with the projection of the second rear floor cover plate.

[0027] In the above scheme, the first reinforcing plate is set at the lower end of the left rear longitudinal beam and the second reinforcing plate is set at the lower end of the right rear longitudinal beam. This can directly enhance the connection stability between the longitudinal beam and other structures at the bottom of the vehicle body. During vehicle operation, the longitudinal beam bears forces from all directions. The reinforcing plate can effectively disperse these forces, reduce local stress concentration in the longitudinal beam, prevent deformation or damage to the longitudinal beam, extend the service life of the longitudinal beam, and ensure the reliability of the overall vehicle structure.

[0028] Secondly, embodiments of this application provide a vehicle including a rear floor assembly as described in any of the above embodiments.

[0029] The vehicle proposed in this application embodiment, having the rear floor assembly described in any of the above embodiments, expands the space of the vehicle's trunk and reduces the number of weld points. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of some embodiments of this application;

[0032] Figure 2 This is a partial structural schematic diagram of some other embodiments of this application;

[0033] Figure 3 This is a bottom view structural diagram of some other embodiments of this application.

[0034] [Explanation of Labels in the Attached Image]

[0035] 100: Left rear longitudinal beam; 110: First section; 120: Second section; 130: Third section; 131: Third horizontal plate; 132: Third vertical plate;

[0036] 200: Right rear longitudinal beam; 210: Fourth segment; 220: Fifth segment; 230: Sixth segment; 231: Fourth horizontal plate; 232: Fourth vertical plate;

[0037] 300: Rear floor body; 310: Front part of the rear floor body; 320: Rear part of the rear floor body;

[0038] 410: First rear floor cover plate; 411: First horizontal plate; 412: First vertical plate;

[0039] 420: Second rear floor cover plate; 421: Second horizontal plate; 422: Second vertical plate;

[0040] 510: First reinforcing plate; 520: Second reinforcing plate;

[0041] X: Left and right direction; Y: Front and back direction. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0044] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0047] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0048] The rear floor of a car refers to the structure at the rear of the vehicle body. It is an important component of the car body and, together with the front floor, constitutes the floor structure of the car. The rear floor generally includes the rear floor frame assembly, the rear floor panel assembly, and the rear bulkhead assembly. As the load-bearing structure that supports the rear seats, trunk, subframe, rear shock absorbers, and other structures, the rear floor frame assembly has very high requirements for torsional stiffness, strength, and durability. At the same time, it transmits structural forces during a rear collision through a rear longitudinal beam structure on each side. In the event of a rear collision, the structural strength of the rear longitudinal beams plays a crucial role in protecting the battery, fuel tank, and occupants from injury.

[0049] In traditional structures, the front half of the rear longitudinal beam protrudes outward relative to the middle section, while the rear half is designed to be flat, resulting in limited trunk space. Therefore, how to improve the usable trunk space is a pressing technical problem that needs to be solved. In addition, to increase the trunk space in traditional structures, the rear longitudinal beam / rear floor is divided into front and rear sections, and upper and lower sections, totaling 12 parts. The rear longitudinal beam / floor parts are numerous, scattered, heavy, and have many welding points.

[0050] Therefore, in order to expand the usable space of the trunk, this application discloses a rear floor assembly for a vehicle, please refer to... Figure 1 and Figure 2 It includes the left rear longitudinal beam 100 and the right rear longitudinal beam 200.

[0051] Along the longitudinal direction Y of the vehicle, the left rear longitudinal beam 100 includes a first segment 110, a second segment 120, and a third segment 130 connected in sequence. It can be understood that the multi-segment left rear longitudinal beam 100 can make the force on the rear of the vehicle more balanced. When the vehicle is under load or subjected to external forces, it can reasonably guide the collision energy to be transmitted along a predetermined path, avoiding the energy concentration in a certain part and causing excessive damage. For example, during a collision, each segment of the longitudinal beam can disperse the energy to other structural components of the vehicle, such as crossbeams and body floor, so that the entire body shares the collision energy and reduces the stress on local structures.

[0052] Along the left-right direction X of the vehicle, the right rear longitudinal beam 200 is set to the right of the left rear longitudinal beam 100 and spaced apart from it. It can be understood that the spaced left rear longitudinal beam 100 and right rear longitudinal beam 200 can provide reasonable installation space for other components at the rear of the vehicle, such as the fuel tank, exhaust pipe, and suspension system, making the overall layout of the vehicle more compact and reasonable and improving space utilization.

[0053] Along the front-rear direction Y of the vehicle, the right rear longitudinal beam 200 includes a fourth segment 210, a fifth segment 220 and a sixth segment 230 connected in sequence. Along the left-right direction X of the vehicle, the fourth segment 210 and the first segment 110 are arranged opposite each other, the fifth segment 220 and the second segment 120 are arranged opposite each other, and the sixth segment 230 and the third segment 130 are arranged opposite each other.

[0054] Understandably, the relatively balanced arrangement of the longitudinal beams allows for a more even distribution of forces at the rear of the vehicle. When the vehicle is under load or subjected to external forces, the left rear longitudinal beam 100 and the right rear longitudinal beam 200 can work together to distribute the force evenly across the entire bottom of the vehicle body, preventing excessive localized stress and thus improving the overall strength of the vehicle body.

[0055] Along the left-right direction X of the vehicle, the distance between the first segment 110 and the fourth segment 210 is greater than the distance between the second segment 120 and the fifth segment 220, and the distance between the third segment 130 and the sixth segment 230 is greater than the distance between the second segment 120 and the fifth segment 220.

[0056] Understandably, the distance between the third segment 130 and the sixth segment 230 is greater than the distance between the second segment 120 and the fifth segment 220, causing the rear half of the rear longitudinal beam to protrude outward, thus widening the outer rear of the vehicle and expanding the usable space of the vehicle's trunk.

[0057] The first segment 110, the second segment 120, and the third segment 130 are integrally molded parts, as are the fourth segment 210, the fifth segment 220, and the sixth segment 230.

[0058] Understandably, both the left rear longitudinal beam 100 and the right rear longitudinal beam 200 are integrally molded parts. This reduces the number of parts in the rear longitudinal beams, thereby reducing the manufacturing, assembly, and welding processes of multiple components, shortening the production cycle, and improving production efficiency. On the other hand, the overall structure has better rigidity and strength, better force transmission, and reduces the occurrence of stress concentration problems that may occur at welding or other connection points. The integrally molded longitudinal beams have stronger fatigue resistance during long-term use, can withstand repeated loads, reduce the risk of structural damage caused by fatigue crack propagation, and extend the service life of the vehicle.

[0059] Furthermore, in the event of a collision, the one-piece molded longitudinal beams can deform as a whole according to the designed deformation pattern, more effectively absorbing and dissipating collision energy. For example, in a frontal collision, the longitudinal beams can evenly transfer the collision force to other parts of the vehicle body, avoiding excessive local deformation and providing more reliable safety protection for the occupants.

[0060] In other embodiments, please refer to Figure 2 and Figure 3Along the direction from left to right, the second segment 120 protrudes from the first segment 110 and the third segment 130; along the direction from right to left, the fifth segment 220 protrudes from the fourth segment 210 and the sixth segment 230.

[0061] Understandably, along the left-to-right direction, the second segment 120 protrudes from the first segment 110 and the third segment 130, and along the right-to-left direction, the fifth segment 220 protrudes from the fourth segment 210 and the sixth segment 230, forming a structure that contracts towards the center. This allows the second segment 120 and the fifth segment 220 to have more deformation space during a collision. These parts can absorb collision energy through their own deformation, playing a buffering role, thereby effectively reducing the impact force of the collision on the vehicle and passengers and improving the vehicle's passive safety performance.

[0062] In other embodiments, please refer to Figure 3 Along the front-rear direction Y of the vehicle, the projection of the first segment 110 at least partially overlaps with the projection of the third segment 130, and the projection of the fourth segment 210 at least partially overlaps with the projection of the sixth segment 230.

[0063] In other words, the first segment 110 is positioned opposite to the third segment 130, and the fourth segment 210 is positioned opposite to the sixth segment 230. This arrangement helps the left rear longitudinal beam 100 and the right rear longitudinal beam 200 to more evenly bear and transmit the inertial force in the front-rear direction Y, as well as the complex stress generated when driving on uneven road surfaces, avoiding excessive local stress, ensuring the mechanical balance of the overall vehicle structure, and improving the stability of the vehicle.

[0064] In other embodiments, please refer to Figure 1 The rear floor assembly also includes a rear floor body 300, which is connected at both ends to the left rear longitudinal beam 100 and the right rear longitudinal beam 200 along the left-right direction X of the vehicle.

[0065] Understandably, the connection between the rear floor body 300 and the left rear longitudinal beam 100 and the right rear longitudinal beam 200 forms a stable frame structure at the rear of the vehicle, improving the overall strength and stability of the vehicle structure and making the vehicle more reliable when driving in complex road conditions. At the same time, the rear floor body 300 can provide a flat floor surface for the vehicle interior, which is conducive to the rational use of interior space. For example, a flat floor can facilitate the installation and arrangement of interior seats, interior trim and other components, thereby improving the efficiency of interior space utilization.

[0066] In other embodiments, please refer to Figure 1 and Figure 3 The rear floor body 300 includes a rear floor front body 310 and a rear floor rear body 320, with the rear floor front body 310 located on the front side of the rear floor rear body 320.

[0067] Along the left-right direction X of the vehicle, the two ends of the front body 310 of the rear floor are connected to the first segment 110 and the fourth segment 210 respectively, one end of the rear body 320 of the rear floor is connected to the second segment 120 and the third segment 130, and the other end of the rear body 320 of the rear floor is connected to the fifth segment 220 and the sixth segment 230. At least a portion of the rear body 320 of the rear floor protrudes downward relative to the front body 310 of the rear floor.

[0068] Understandably, at least a portion of the rear floor rear body 320 protrudes downward relative to the front floor front body 310, further increasing the usable space in the trunk and thus improving the user experience.

[0069] In other embodiments, please refer to Figure 1 The rear floor assembly also includes a first rear floor cover plate 410 and a second rear floor cover plate 420. Along the left-right direction X of the vehicle, the first rear floor cover plate 410 is disposed between the rear body 320 of the rear floor and the left rear longitudinal beam 100, and the second rear floor cover plate 420 is disposed between the rear body 320 of the rear floor and the right rear longitudinal beam 200.

[0070] Understandably, the first rear floor cover plate 410 and the second rear floor cover plate 420 can increase the strength of the connection between the rear floor assembly and the left rear longitudinal beam 100 and the right rear longitudinal beam 200, making the whole structure a more stable whole. When the vehicle is subjected to external forces, these cover plates can evenly distribute the force to the rear body 320 of the rear floor and the left rear longitudinal beam 100 and the right rear longitudinal beam 200, avoiding stress concentration in local areas, reducing the possibility of structural deformation, improving the overall structural reliability, and thus improving the reliability and durability of the vehicle.

[0071] In other embodiments, please refer to Figure 1 The first rear floor cover plate 410 includes a first horizontal plate 411 and a first vertical plate 412 connected to each other. The first horizontal plate 411 is connected to the upper end of the left rear longitudinal beam 100, and the first vertical plate 412 is disposed between the rear body 320 of the rear floor and the left rear longitudinal beam 100.

[0072] The second rear floor cover plate 420 includes a second horizontal plate 421 and a second vertical plate 422 connected to each other. The second horizontal plate 421 is connected to the upper end of the right rear longitudinal beam 200, and the second vertical plate 422 is disposed between the rear body 320 of the rear floor and the right rear longitudinal beam 200.

[0073] Understandably, the connection between the first horizontal plate 411 and the upper end of the left rear longitudinal beam 100, and the connection between the second horizontal plate 421 and the upper end of the right rear longitudinal beam 200, enables the rear floor to form a more stable connection structure with the left and right rear longitudinal beams 200. During vehicle operation, this structure can effectively transmit and disperse forces from different directions, such as forces generated during acceleration, deceleration, and turning, as well as impact forces caused by uneven road surfaces. This reduces stress concentration at the connection points of various components and enhances the reliability of the overall vehicle structure.

[0074] In addition, the first vertical plate 412 and the second vertical plate 422 are respectively disposed between the rear body 320 of the rear floor and the left and right rear longitudinal beams 200, which is equivalent to forming a reinforcing rib structure between the three components, increasing the complexity and redundancy of the structure. This can significantly improve the overall strength and rigidity of the rear floor assembly, making the vehicle less prone to deformation when subjected to large loads or encountering complex road conditions, thus ensuring the stability and integrity of the vehicle body.

[0075] In other embodiments, please refer to Figure 1 and Figure 2 The left rear longitudinal beam 100 includes a third horizontal plate 131 and a third vertical plate 132 connected to each other. Along the left-right direction X of the vehicle, the third vertical plate 132 is opposite to and spaced apart from the first vertical plate 412. Along the up-down direction of the vehicle, the third horizontal plate 131 is opposite to and spaced apart from the first horizontal plate 411. The upper end of the first horizontal plate 411 is connected to the third vertical plate 132. The first vertical plate 412 is located between the third horizontal plate 131 and the rear floor rear body 320.

[0076] The right rear longitudinal beam 200 includes a fourth horizontal plate 231 and a fourth vertical plate 232 connected to each other. Along the left-right direction X of the vehicle, the fourth vertical plate 232 is opposite to and spaced apart from the second vertical plate 422. Along the up-down direction of the vehicle, the fourth horizontal plate 231 is opposite to and spaced apart from the second horizontal plate 421. The upper end of the second horizontal plate 421 is connected to the fourth vertical plate 232. The second vertical plate 422 is located between the fourth horizontal plate 231 and the rear body 320 of the rear floor.

[0077] Understandably, the combined structure of the third horizontal plate 131 and the third vertical plate 132, and the fourth horizontal plate 231 and the fourth vertical plate 232 increases the bending and torsional strength of the left rear longitudinal beam 100 and the right rear longitudinal beam 200. The horizontal plates can better withstand the loads in the vertical direction of the vehicle, such as the weight of the vehicle itself and the weight of passengers and cargo, while the vertical plates play an important role in resisting the lateral and torsional forces generated during vehicle operation, so that the vehicle can maintain structural stability under various driving conditions.

[0078] In addition, the horizontal and vertical plates that are arranged opposite each other and spaced apart, and their cooperation with the rear body 320 of the rear floor, form a frame-like structure with high stability and resistance to deformation. When the vehicle is subjected to a collision or other external forces, it can effectively resist deformation, maintain the overall shape of the vehicle, and provide better protection for the occupants and important components.

[0079] In other embodiments, please refer to Figure 3 The rear floor assembly also includes a first reinforcing plate 510 and a second reinforcing plate 520. Along the vertical direction of the vehicle, the first reinforcing plate 510 is disposed at the lower end of the left rear longitudinal beam 100, and the second reinforcing plate 520 is disposed at the lower end of the right rear longitudinal beam 200. The projection of the first reinforcing plate 510 at least partially overlaps with the projection of the first rear floor cover plate 410, and the projection of the second reinforcing plate 520 at least partially overlaps with the projection of the second rear floor cover plate 420.

[0080] Understandably, the first reinforcing plate 510 is located at the lower end of the left rear longitudinal beam 100, and the second reinforcing plate 520 is located at the lower end of the right rear longitudinal beam 200. This can directly enhance the connection stability between the longitudinal beam and other structures at the bottom of the vehicle body. During vehicle operation, the longitudinal beam bears forces from all directions. The reinforcing plates can effectively disperse these forces, reduce local stress concentration in the longitudinal beam, prevent deformation or damage to the longitudinal beam, extend the service life of the longitudinal beam, and ensure the reliability of the overall vehicle structure.

[0081] In addition, the overlapping portion of the reinforcement plate and the upper cover plate allows the force to be transferred and distributed between the two, making the force on the rear floor assembly more balanced in the front-rear Y direction and improving the fatigue resistance of the vehicle body.

[0082] In a specific embodiment, a plurality of crossbeams are provided between the left rear longitudinal beam 100 and the right rear longitudinal beam 200, with the two ends of the plurality of crossbeams connected to the left rear longitudinal beam 100 and the right rear longitudinal beam 200 respectively.

[0083] Secondly, embodiments of this application provide a vehicle including a rear floor assembly as described in any of the above embodiments.

[0084] The vehicle proposed in this application embodiment, having the rear floor assembly described in any of the above embodiments, expands the usable space of the vehicle's trunk and reduces the number of weld points.

[0085] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0086] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0087] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0088] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A rear floor assembly for a vehicle, characterized in that, include: The left rear longitudinal beam, along the front-rear direction of the vehicle, comprises a first section, a second section, and a third section connected in sequence; The right rear longitudinal beam, along the left-right direction of the vehicle, is located to the right of the left rear longitudinal beam and spaced apart from it. Along the front-rear direction of the vehicle, the right rear longitudinal beam includes a fourth segment, a fifth segment, and a sixth segment connected in sequence. Along the left-right direction of the vehicle, the fourth segment and the first segment are opposite to each other, the fifth segment and the second segment are opposite to each other, and the sixth segment and the third segment are opposite to each other. Wherein, along the left-right direction of the vehicle, the distance between the first segment and the fourth segment is greater than the distance between the second segment and the fifth segment, and the distance between the third segment and the sixth segment is greater than the distance between the second segment and the fifth segment. The first segment, the second segment, and the third segment are integrally formed parts, and the fourth segment, the fifth segment, and the sixth segment are integrally formed parts.

2. The rear floor assembly according to claim 1, characterized in that, Along the left-to-right direction, the second segment protrudes beyond the first and third segments, and along the right-to-left direction, the fifth segment protrudes beyond the fourth and sixth segments.

3. The rear floor assembly according to claim 1 or 2, characterized in that, Along the longitudinal direction of the vehicle, the projection of the first segment at least partially overlaps with the projection of the third segment, and the projection of the fourth segment at least partially overlaps with the projection of the sixth segment.

4. The rear floor assembly according to claim 1, characterized in that, The rear floor assembly also includes a rear floor body, with both ends of the rear floor body connected to the left and right rear longitudinal beams, respectively, along the left-right direction of the vehicle.

5. The rear floor assembly according to claim 4, characterized in that, The rear floor body includes a front rear floor body and a rear rear floor body, wherein the front rear floor body is located on the front side of the rear rear floor body; Along the left-right direction of the vehicle, the two ends of the front body of the rear floor are connected to the first segment and the fourth segment respectively, one end of the rear body of the rear floor is connected to the second segment and the third segment, the other end of the rear body of the rear floor is connected to the fifth segment and the sixth segment, and at least a portion of the rear body of the rear floor protrudes downward relative to the front body of the rear floor.

6. The rear floor assembly according to claim 5, characterized in that, The rear floor assembly also includes a first rear floor cover plate and a second rear floor cover plate. Along the left-right direction of the vehicle, the first rear floor cover plate is disposed between the rear body of the rear floor and the left rear longitudinal beam, and the second rear floor cover plate is disposed between the rear body of the rear floor and the right rear longitudinal beam.

7. The rear floor assembly according to claim 6, characterized in that, The first rear floor cover plate includes a first horizontal plate and a first vertical plate connected to each other. The first horizontal plate is connected to the upper end of the left rear longitudinal beam, and the first vertical plate is disposed between the rear body of the rear floor and the left rear longitudinal beam. The second rear floor cover plate includes a second horizontal plate and a second vertical plate connected to each other. The second horizontal plate is connected to the upper end of the right rear longitudinal beam, and the second vertical plate is disposed between the rear body of the rear floor and the right rear longitudinal beam.

8. The rear floor assembly according to claim 7, characterized in that, The left rear longitudinal beam includes a third horizontal plate and a third vertical plate connected to each other. Along the left-right direction of the vehicle, the third vertical plate is opposite to and spaced apart from the first vertical plate. Along the up-down direction of the vehicle, the third horizontal plate is opposite to and spaced apart from the first horizontal plate. The upper end of the first horizontal plate is connected to the third vertical plate. The first vertical plate is disposed between the third horizontal plate and the rear body of the rear floor. The right rear longitudinal beam includes a fourth horizontal plate and a fourth vertical plate connected to each other. Along the left-right direction of the vehicle, the fourth vertical plate is opposite to and spaced apart from the second vertical plate. Along the up-down direction of the vehicle, the fourth horizontal plate is opposite to and spaced apart from the second horizontal plate. The upper end of the second horizontal plate is connected to the fourth vertical plate. The second vertical plate is disposed between the fourth horizontal plate and the rear body of the rear floor.

9. The rear floor assembly according to claim 6, characterized in that, The rear floor assembly also includes a first reinforcing plate and a second reinforcing plate. Along the vertical direction of the vehicle, the first reinforcing plate is disposed at the lower end of the left rear longitudinal beam, and the second reinforcing plate is disposed at the lower end of the right rear longitudinal beam. The projection of the first reinforcing plate at least partially overlaps with the projection of the first rear floor cover plate, and the projection of the second reinforcing plate at least partially overlaps with the projection of the second rear floor cover plate.

10. A vehicle, characterized in that, Includes the rear floor assembly as described in any one of claims 1 to 9.

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