Vehicle structure and automobile

Abstract

The invention provides a vehicle structure and an automobile, and relates to the field of automobile design and manufacturing. A vehicle structure of the present invention includes: a front floor assembly including a front floor panel; and a rear floor assembly including: a rear floor panel connected to the front floor panel in the X direction; the two rear floor longitudinal beam assemblies are arranged in a spaced mode in the Y direction and connected with the rear floor panel in the Z direction; the height of the two rear floor longitudinal beam assemblies in the Z direction is the same and is lower than that of the front floor panel so as to be used for being connected with a rear suspension assembly, and the height of the rear floor panel and the height of the front floor panel in the Z direction are allowed to be the same. By means of the vehicle structure, the height difference between the front floor panel and the rear floor panel is effectively eliminated, goods loading and unloading are facilitated, meanwhile, the passenger space in the vehicle is promoted to be increased, and special tools of disabled people such as wheelchairs can enter and exit more conveniently.

Description

Technical Field

[0001] The present invention relates to the field of automobile design and manufacturing, and in particular to a vehicle structure and an automobile. Background Art

[0002] With the rapid development of the automobile industry and the increasing diversification of consumer demands, vehicle design is gradually tending towards being more humane, more space-efficient and more functionally diverse.

[0003] In the traditional vehicle design, the two rear longitudinal beams of the rear floor frame are arranged symmetrically along the X0 axis of the vehicle, and there is a height difference between the front and rear ends of the two rear longitudinal beams along the X direction to provide space for the layout of the rear subframe, so that the rear suspension assembly can be installed and fixed with the help of the rear subframe; however, this design will result in a height difference of 170mm between the rear floor panel and the front floor panel after the rear floor panel is connected to the rear longitudinal beam in the Z direction (such as Figure 1 As shown in the figure, the height of the rear floor panel from the ground is often higher than 500mm, and its flatness with the front floor panel is poor. The higher height of the rear floor panel not only increases the difficulty of loading and unloading goods, but also reduces the passenger space in the vehicle. Especially for special groups such as the disabled, the higher floor height greatly increases the difficulty of getting on and off the vehicle, which is not conducive to the realization of barrier-free travel.

[0004] In view of the above, the present invention is proposed. Summary of the invention

[0005] The present invention provides a vehicle structure and a car, aiming to solve or at least alleviate the problem in the prior art that the rear floor panel is too high from the ground and has poor flatness with the front floor panel.

[0006] A first aspect of the present invention provides a vehicle structure, comprising: a front floor assembly, including a front floor panel; and a rear floor assembly, including: a rear floor panel connected to the front floor panel along the X direction; and two rear floor longitudinal beam assemblies, the two rear floor longitudinal beam assemblies are arranged at intervals along the Y direction and connected to the rear floor panel along the Z direction; wherein the two rear floor longitudinal beam assemblies have the same height in the Z direction and are lower than the front floor panel, so as to be used for connecting the rear suspension assembly and allow the rear floor panel to have the same height as the front floor panel in the Z direction.

[0007] In some embodiments, the rear floor assembly further includes a rear cross beam for a rear seat and a middle cross beam for the rear floor; the rear cross beam for the rear seat is connected to one end of the two rear floor longitudinal beam assemblies facing the front floor panel along the X-direction; the middle cross beam for the rear floor is arranged at intervals along the X-direction at the end of the rear cross beam for the rear seat away from the front floor panel, and is connected between the two rear floor longitudinal beam assemblies along the Y-direction; the rear cross beam for the rear seat and the middle cross beam for the rear floor are both connected to the rear floor panel along the Z-direction, and the Y-direction spacing between the two rear floor longitudinal beam assemblies from the rear cross beam for the rear seat along the X-direction to the part between the middle cross beam for the rear floor gradually decreases.

[0008] In some embodiments, the two rear floor longitudinal beam assemblies each include an inner longitudinal beam, an outer longitudinal beam and at least one reinforcing cross beam; the inner longitudinal beam and the outer longitudinal beam of each rear floor longitudinal beam assembly are arranged at intervals along the Y direction, and one end along the X direction facing the front floor assembly is connected to the rear cross beam of the rear seat; the two ends of the rear floor middle cross beam along the Y direction are connected between the two inner longitudinal beams; the outer longitudinal beam of each rear floor longitudinal beam assembly is connected to the inner longitudinal beam along the X direction, and at least partially arranged at intervals with the inner longitudinal beam along the Y direction, the reinforcing cross beam is arranged between the outer longitudinal beam and the inner longitudinal beam, and connects the outer longitudinal beam and the inner longitudinal beam along the Y direction; the inner longitudinal beam and the outer longitudinal beam are used to install the rear suspension assembly in the Z direction.

[0009] In some embodiments, the inner longitudinal beam includes an avoidance section and an extension section; the avoidance section is connected to the extension section along the X direction, one end of the avoidance section away from the extension section is connected to the rear cross beam of the rear seat along the X direction, and the two ends of the cross beam in the rear floor in the Y direction are respectively connected to the extension sections of the two inner longitudinal beams; the spacing between the avoidance sections of the two inner longitudinal beams gradually decreases toward the extension section along the Y direction; the outer longitudinal beam is connected to the avoidance section along the X direction and is spaced from the extension section along the Y direction.

[0010] In some embodiments, the rear floor assembly also includes a front cross beam for a rear seat and a rear panel; the front cross beam for the rear seat and the middle cross beam for the rear floor are arranged at intervals along the X direction, and are connected to the side of the rear floor panel away from the rear cross beam for the rear seat along the Z direction, and the rear cross beam 23 for the rear seat is arranged between the front cross beam for the rear seat and the middle cross beam for the rear floor along the X direction; the rear panel is connected to one end of the rear floor panel away from the front floor panel along the X direction, and is connected to the two rear floor longitudinal beam assemblies along the X direction.

[0011] In some embodiments, the vehicle structure also includes a battery pack assembly; the rear cross beam of the rear seat, the rear floor panel and the front floor panel form a receiving space; the battery pack assembly is arranged in the receiving space and is connected to the front floor panel and the front cross beam of the rear seat along the Z direction and to the rear cross beam of the rear seat along the X direction.

[0012] In some embodiments, the front floor assembly also includes a front cross beam for a front seat, a rear cross beam for a front seat and two door sill beams; the two door sill beams are arranged at intervals along the Y direction, and the front floor panel is arranged between the two door sill beams and are respectively connected to the two door sill beams in the Y direction; the front cross beam for the front seat and the rear cross beam for the front seat are arranged at intervals along the X direction and are connected to the side of the front floor panel away from the battery pack assembly along the Z direction; the two door sill beams are both connected to the battery pack assembly in the Y direction and to the rear cross beam for the rear seat in the Y direction; the front cross beam for the front seat and the rear cross beam for the front seat are both connected to the battery pack assembly in the Z direction.

[0013] In some embodiments, the vehicle structure also includes two rear side panels, which are arranged at intervals along the Y direction; the rear floor panel is arranged between the two rear side panels, and is connected to the two rear side panels along the Z direction on one side facing away from the rear floor longitudinal beam assembly; each rear side panel is connected to the rear panel and the corresponding door sill beam at both ends along the X direction, and the rear side panel is provided with a rear suspension assembly mounting point facing the Z direction, so as to cooperate with the rear floor longitudinal beam assembly to install the rear suspension assembly.

[0014] In some embodiments, the height of the rear floor panel from the ground is 340-380 mm.

[0015] A second aspect of the present invention provides an automobile, comprising the vehicle structure as described above, and further comprising a rear suspension assembly, wherein the rear suspension assembly is connected to the rear floor longitudinal beam assembly.

[0016] Compared with the prior art, the vehicle structure and automobile provided by the present invention have at least the following beneficial effects:

[0017] Through the optimized design of the vehicle structure, the vehicle structure includes a front floor assembly and a rear floor assembly, wherein the front floor panel of the front floor assembly is connected to the rear floor panel of the rear floor assembly in the X direction, the two rear floor longitudinal beam assemblies of the rear floor assembly are arranged at intervals in the Y direction and connected to the rear floor panel in the Z direction, the two rear floor longitudinal beam assemblies have the same height in the Z direction, and the height in the Z direction is lower than the front floor panel, so that after the rear floor panel is connected to the two rear floor longitudinal beams in the Z direction, the Z-direction heights of the rear floor panel and the front floor panel can be kept the same, the rear floor panel and the front floor panel can jointly form a flat surface parallel to the XY plane, thereby improving the flatness of the rear floor panel and the front floor panel, and the two rear floor longitudinal beam assemblies can be directly used for the installation of the rear suspension assembly, without the need to design a rear subframe at the bottom of the rear floor panel, so that the height of the rear floor panel from the ground can be significantly reduced.

[0018] Therefore, the floor surface formed by the front floor panel and the rear floor panel of the vehicle structure provided by the present invention has an ultra-low height from the ground, and the height of the rear floor panel from the ground is significantly reduced, effectively eliminating the height difference between the front floor panel and the rear floor panel, thereby greatly improving the flatness of the front floor panel and the rear floor panel, which is beneficial to cargo loading and unloading, while expanding the passenger space in the vehicle, making it more convenient for disabled people to enter and exit with special tools such as wheelchairs.

[0019] Other features and advantages of the vehicle structure and automobile provided by the present invention will be further described in the subsequent specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the height difference between the rear floor panel and the front floor panel of a vehicle structure in the prior art;

[0022] Figure 2 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0023] Figure 3 A bottom view of a vehicle structure provided in an embodiment of the present application;

[0024] Figure 4 A bottom view schematic diagram of a partial structure of a vehicle structure provided in an embodiment of the present application;

[0025] Figure 5 An AA cross-sectional view of a vehicle structure provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram of a partial structure of a vehicle structure provided in an embodiment of the present application;

[0027] Figure 7 A BB cross-sectional view of a vehicle structure provided in an embodiment of the present application;

[0028] Figure 8 A schematic diagram of a module of a car provided in an embodiment of the present application.

[0029] The reference numerals are as follows:

[0030] 100. Vehicle structure; H, ground clearance; D, ground;

[0031] 10. Front floor assembly; 11. Front floor panel; 12. Front seat front cross beam; 13. Front seat rear cross beam; 14. Door sill beam;

[0032] 20. Rear floor assembly; 21. Rear floor panel; 22. Rear floor longitudinal beam assembly; 221. Inner longitudinal beam; 221A. Avoidance section; 221B. Extension section; 222. Outer longitudinal beam; 223. Strengthening cross beam; 23. Rear cross beam of rear seat; 24. Middle cross beam of rear floor; 25. Front cross beam of rear seat; 26. Rear panel;

[0033] 30. Battery pack assembly;

[0034] 40. Rear side panels;

[0035] 50. Front cabin assembly;

[0036] 1000. Automobile. DETAILED DESCRIPTION

[0037] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear to indicate the orientation or position relationship, unless otherwise specified, they are understood to be based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, if there is a feature defined as "first" or "second", it is only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly include at least one of the defined features. If there is a description of "plurality", the general meaning is to include at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and so on should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0041] It should be noted that the coordinate descriptions such as "X direction, Y direction, Z direction" mentioned in the description of the present invention are interpreted with reference to the coordinate system of the entire vehicle, that is, the straight line where the direction of the front of the vehicle is located is the X direction, the axial direction of the front wheels is the Y direction, and the direction perpendicular to the ground D is the Z direction.

[0042] Based on the foregoing, the general inventive concept of the embodiment of the present application is to provide a vehicle structure 100. By optimizing the structural design of the vehicle structure 100, two rear floor longitudinal beam assemblies 22 that can be used to install the rear suspension assembly are used to connect the rear floor panel 21 in the Z direction. Therefore, there is no need to design an installation space for arranging the rear subframe at the bottom of the rear floor panel 21, thereby effectively reducing the height H of the rear floor panel 21 from the ground. The rear floor panel 21 can form a floor surface with a high degree of flatness together with the front floor panel 11, thereby reducing the height H of the rear floor panel 21 from the ground while expanding the passenger space in the vehicle, facilitating the loading and unloading of goods and the entry and exit of special tools for disabled people such as wheelchairs.

[0043] Based on the above general inventive concept, Figure 2 to Figure 8 As shown, an embodiment of the present invention provides a vehicle structure 100, including: a front floor assembly 10, including a front floor panel 11; and a rear floor assembly 20, including: a rear floor panel 21, connected to the front floor panel 11 along the X direction; and two rear floor longitudinal beam assemblies 22, the two rear floor longitudinal beam assemblies 22 are arranged at intervals along the Y direction and connected to the rear floor panel 21 along the Z direction; wherein the two rear floor longitudinal beam assemblies 22 have the same height along the Z direction and are lower than the front floor panel 11, so as to be used for connecting the rear suspension assembly and allow the rear floor panel 21 to have the same height as the front floor panel 11 in the Z direction.

[0044] In the embodiment of the present application, the vehicle structure 100 includes a front floor assembly 10 and a rear floor assembly 20, wherein the front floor assembly 10 includes a front floor panel 11, and the front floor panel 11 can be a flat plate structure parallel to the XY plane. The rear floor panel 21 in the rear floor assembly 20 is similar in design to the front floor panel 11, and can also be a flat plate structure parallel to the XY plane. The two rear floor longitudinal beam assemblies 22 in the rear floor assembly 20 can be designed along the top to be a flat surface adapted to the rear floor panel 21, so that after the rear floor panel 21 is connected to the top of the two rear floor longitudinal beam assemblies 22 in the Z direction, it can be aligned and connected with the front floor panel 11 in the X direction, so that the floor surface jointly formed by the front floor panel 11 and the rear floor panel 21 has an extremely high flatness.

[0045] The two rear floor longitudinal beam assemblies 22 are arranged at intervals along the Y direction, and can be connected to the rear suspension assembly (not shown) adapted to the two rear wheels at the rear end of the automobile 1000. The rear suspension assembly no longer needs to be installed with the aid of a rear subframe. After the rear subframe design is cancelled, the rear floor panel 21 can be lowered in the Z direction to a height H from the ground to the same level as the front floor panel 11, so as to facilitate the expansion of the passenger space in the vehicle, and facilitate the loading and unloading of cargo and the entry and exit of special tools such as wheelchairs for the disabled.

[0046] The vehicle structure 100 provided in the embodiment of the present application has an ultra-low ground clearance H and a completely flat floor surface. There is no height difference between the front floor panel 11 and the rear floor panel 21, so as to maximize the passenger space in the vehicle. When passengers travel, it is more convenient to lay down the seats on the floor surface into beds for rest, and it can also provide entertainment expansion such as dinner parties and card games to enhance the user experience.

[0047] To improve the structural stability of the rear floor assembly 20, in some embodiments, reference Figure 3 The rear floor assembly 20 also includes a rear seat rear cross beam 23 and a rear floor middle cross beam 24; the rear seat rear cross beam 23 is connected to one end of the two rear floor longitudinal beam assemblies 22 facing the front floor panel 11 along the X direction; the rear floor middle cross beam 24 is arranged at intervals along the X direction at the end of the rear seat rear cross beam 23 away from the front floor panel 11, and is connected between the two rear floor longitudinal beam assemblies 22 along the Y direction; the rear seat rear cross beam 23 and the rear floor middle cross beam 24 are both connected to the rear floor panel 21 along the Z direction, and the Y-direction spacing between the two rear floor longitudinal beam assemblies 22 from the rear seat rear cross beam 23 to the rear floor middle cross beam 24 along the X direction gradually decreases.

[0048] In the embodiment of the present application, the rear cross beam 23 of the rear seat and the middle cross beam 24 of the rear floor are both designed at the bottom of the rear floor panel 21 along the Z direction, the end of the rear cross beam 23 of the rear seat away from the front floor panel 11 is connected to the two rear floor longitudinal beam assemblies 22 in the X direction, and the rear cross beam 23 of the rear seat is connected to the rear floor panel 21 in the Z direction, the middle cross beam 24 of the rear floor and the rear cross beam 23 of the rear seat are arranged at intervals along the X direction, and are arranged between the two rear floor longitudinal beam assemblies 22, the top of the middle cross beam 24 of the rear floor is connected to the rear floor panel 21 in the Z direction, and the two ends of the middle cross beam 24 of the rear floor along the Y direction are connected to the corresponding rear floor longitudinal beam assemblies 22 in the Y direction, thereby, the rear cross beam 23 of the rear seat, the middle cross beam 24 of the rear floor and the two rear floor longitudinal beam assemblies 22 together constitute the rear floor beam frame assembly, so that the structural stability of the rear floor assembly 20 is significantly improved.

[0049] Moreover, the Y-direction spacing between the two rear floor longitudinal beam assemblies 22 and the portion between the rear cross beam 23 of the rear seat and the rear floor middle cross beam 24 along the X-direction gradually decreases, and the size of the rear cross beam 23 of the rear seat along the Y-direction is larger than the rear floor middle cross beam 24, which is beneficial for avoiding the arrangement space of the rear suspension assembly or other mounting structures for the rear suspension assembly in the directions in which the two rear floor longitudinal beam assemblies 22 diverge from each other, so as to facilitate the stable connection of the rear suspension assembly in the vehicle structure 100.

[0050] To achieve the connection of the rear suspension assembly without a rear subframe design, in some embodiments, reference is made to Figure 4 The two rear floor longitudinal beam assemblies 22 each include an inner longitudinal beam 221, an outer longitudinal beam 222 and at least one reinforcing cross beam 223; the inner longitudinal beam 221 and the outer longitudinal beam 222 of each rear floor longitudinal beam assembly 22 are arranged at intervals along the Y direction, and one end along the X direction facing the front floor assembly 10 is connected to the rear cross beam 23 of the rear seat; the two ends of the rear floor middle cross beam 24 along the Y direction are connected between the two inner longitudinal beams 221; the outer longitudinal beam 222 of each rear floor longitudinal beam assembly 22 is connected to the inner longitudinal beam 221 along the X direction, and at least part of it is arranged at intervals with the inner longitudinal beam 221 along the Y direction, and the reinforcing cross beam 223 is arranged between the outer longitudinal beam 222 and the inner longitudinal beam 221, and connects the outer longitudinal beam 222 and the inner longitudinal beam 221 along the Y direction; the inner longitudinal beam 221 and the outer longitudinal beam 222 are used for installing the rear suspension assembly in the Z direction.

[0051] In the embodiment of the present application, the inner longitudinal beam 221 and the outer longitudinal beam 222 of each rear floor longitudinal beam assembly 22 are in an inverted "Y" shape when viewed from an upward angle, and the two inner longitudinal beams 221 are gradually tapered toward the middle cross beam 24 of the rear floor based on the rear cross beam 23 of the rear seat to provide a layout space for the outer longitudinal beam 222; in each rear floor longitudinal beam assembly 22, one end of the outer longitudinal beam 222 is connected to the tapered transition part of the inner longitudinal beam 221 along the X direction, and extends away from the rear cross beam 23 of the rear seat based on the outer longitudinal beam 222. Except for the connection position, the inner longitudinal beam 221 and the outer longitudinal beam 222 are spaced apart along the Y direction, and a number of mounting holes or mounting cavities can be designed on the inner longitudinal beam 221 and the outer longitudinal beam 222 to provide installation and fixing points for the transverse arm and the longitudinal arm of the rear suspension assembly.

[0052] Since the inner longitudinal beam 221 and the outer longitudinal beam 222 provide fixed support for the rear suspension assembly, a higher structural strength is required. Therefore, at least one reinforcing cross beam 223 is designed in the interval between the inner longitudinal beam 221 and the outer longitudinal beam 222. The two ends of the reinforcing cross beam 223 along the Y direction are respectively connected to the inner longitudinal beam 221 and the outer longitudinal beam 222 to improve the structural stability of the rear floor longitudinal beam assembly 22, so that the function of the rear suspension assembly can be effectively exerted.

[0053] The reinforcing cross beam 223 in the embodiment of the present application can be designed as one, or two can be designed with intervals along the X direction (such as Figure 4As shown) or more than two, it can be adaptively designed according to different structural strength requirements.

[0054] In some embodiments, reference Figure 4 The inner longitudinal beam 221 includes an avoidance section 221A and an extension section 221B; the avoidance section 221A is connected to the extension section 221B along the X direction, and one end of the avoidance section 221A away from the extension section 221B is connected to the rear cross beam 23 of the rear seat along the X direction, and the two ends of the rear floor middle cross beam 24 in the Y direction are respectively connected to the extension sections 221B of the two inner longitudinal beams 221; the spacing between the avoidance sections 221A of the two inner longitudinal beams 221 gradually decreases toward the extension section 221B along the Y direction; the outer longitudinal beam 222 is connected to the avoidance section 221A along the X direction and is spaced from the extension section 221B along the Y direction.

[0055] In the embodiment of the present application, the inner longitudinal beam 221 includes an avoidance section 221A and an extension section 221B. The avoidance section 221A is located between the rear cross beam 23 of the rear seat and the extension section 221B along the X direction. The avoidance sections 221A of the two inner longitudinal beams 221 gradually shrink toward each other in the direction away from the rear cross beam 23 of the rear seat, so as to free up space in the Y direction for the arrangement of the outer longitudinal beam 222; the outer longitudinal beam 222 is connected to the middle part of the avoidance section 221A in the X direction, and is arranged at intervals with the extension section 221B to accommodate the connection of the longitudinal arm or the transverse arm of the rear suspension assembly; the extension section 221B is connected to the rear floor middle cross beam 24 in the Y direction at one end close to the avoidance section 221A, so as to facilitate the improvement of the structural strength of the rear floor assembly 20.

[0056] It should be understood that if Figure 5 As shown, the Z-direction heights of the top surfaces of the inner longitudinal beam 221 and the outer longitudinal beam 222 in the embodiment of the present application are the same, so as to ensure the flatness of the rear floor panel 21. The Z-direction heights of the bottom surfaces of the inner longitudinal beam 221 and the outer longitudinal beam 222 can be the same or different, and can be specifically adaptively designed according to the installation requirements of the rear suspension assembly. For example, the Z-direction height of the bottom surface of the outer longitudinal beam 222 can be higher than that of the inner longitudinal beam 221.

[0057] refer to Figure 4 and Figure 6 As shown, in some embodiments, the rear floor assembly 20 also includes a rear seat front cross beam 25 and a rear panel 26; the rear seat front cross beam 25 and the rear floor middle cross beam 24 are arranged at intervals along the X direction, and are connected to the side of the rear floor panel 21 away from the rear seat rear cross beam 23 along the Z direction, and the rear seat rear cross beam 23 is arranged between the rear seat front cross beam 25 and the rear floor middle cross beam 24 along the X direction; the rear panel 26 is connected to the end of the rear floor panel 21 away from the front floor panel 11 along the X direction, and is connected to the two rear floor longitudinal beam assemblies along the X direction.

[0058] In the embodiment of the present application, the rear seat front cross beam 25 is connected to the top surface of the rear floor panel 21 in the Z direction, toward the rear of the vehicle, and the rear seat front cross beam 25, the rear seat rear cross beam 23 and the rear floor middle cross beam 24 are arranged in sequence and spaced apart. The rear seat front cross beam 25 can cooperate with the rear seat rear cross beam 23 to be used to connect the rear seat together along the Z direction; the rear panel 26 has a thicker Z-direction dimension to simultaneously connect the rear floor panel 21 and the two inner longitudinal beams 221 and the two outer longitudinal beams 222 along the X direction.

[0059] In some embodiments, reference Figure 7 The vehicle structure 100 also includes a battery pack assembly 30; the rear cross beam 23 of the rear seat, the rear floor panel 21 and the front floor panel 11 form a receiving space; the battery pack assembly 30 is arranged in the receiving space, and is connected to the front floor panel 11 and the front cross beam 25 of the rear seat along the Z direction, and is connected to the rear cross beam 23 of the rear seat along the X direction.

[0060] In the embodiment of the present application, the rear cross beam 23 of the rear seat, the rear floor panel 21 and the front floor panel 11 form a receiving space with an opening downward, and the battery pack assembly 30 is arranged in the receiving space. The battery pack assembly 30 is connected to the rear cross beam 23 of the rear seat in the X direction, and is connected to the front floor panel 11 and the front cross beam 25 of the rear seat in the Z direction. The battery pack assembly 30 is directly fixed by structures such as the front floor panel 11, the rear cross beam 23 of the rear seat and the front cross beam 25 of the rear seat, and there is no need to design a complicated installation structure, so as to facilitate the reduction of the ground clearance of the flat floor surface jointly formed by the rear floor panel 21 and the front floor panel 11.

[0061] To further improve the connection stability of the battery pack assembly 30, in some embodiments, reference Figure 6 and Figure 7 The front floor assembly 10 also includes a front seat front cross beam 12, a front seat rear cross beam 13 and two door sill beams 14; the two door sill beams 14 are arranged at intervals along the Y direction, and the front floor panel 11 is arranged between the two door sill beams 14 and connected to the two door sill beams 14 in the Y direction; the front seat front cross beam 12 and the front seat rear cross beam 13 are arranged at intervals along the X direction and connected to the side of the front floor panel 11 away from the battery pack assembly 30 along the Z direction; the two door sill beams 14 are both connected to the battery pack assembly 30 in the Y direction and to the rear seat rear cross beam 23 in the Y direction; the front seat front cross beam 12 and the front seat rear cross beam 13 are both connected to the battery pack assembly 30 in the Z direction.

[0062] In the embodiment of the present application, two threshold beams 14 are arranged at intervals along the Y direction and are connected to the rear cross beam 23 of the rear seat along the Y direction to form a frame structure together with the rear cross beam 23 of the rear seat. The battery pack assembly 30 is installed in this frame structure. The two ends of the battery pack assembly 30 along the Y direction are further connected to the inner sides of the two threshold beams 14; the front floor panel 11 is arranged between the two threshold beams 14 and is respectively connected to the two threshold beams 14 in the Y direction. The front seat rear cross beam 13 is located between the front seat front cross beam 12 and the rear seat front cross beam 2 in the X direction. 5, the front seat front cross beam 12 and the front seat rear cross beam 13 are arranged at intervals along the X direction on the top of the front floor panel 11, and are connected to the battery pack assembly 30 in the Z direction through the front floor panel 11; therefore, the battery pack assembly 30 is directly fixed with the help of the door sill beams and the seat cross beams, which greatly simplifies the installation structure design of the battery pack assembly 30, so as to improve the connection stability of the battery pack assembly 30 and further reduce the height H of the flat floor surface jointly formed by the rear floor panel 21 and the front floor panel 11 from the ground.

[0063] In addition, the front seat front cross beam 12 and the front seat rear cross beam 13 in the embodiment of the present application can also be used for the installation and fixation of the front seat to simplify the vehicle structure design and improve the space utilization rate in the vehicle.

[0064] To achieve the installation of the shock absorber of the rear suspension assembly, in some embodiments, reference is made to Figure 2 and Figure 5 The vehicle structure 100 further includes two rear side panels 40, which are arranged at intervals along the Y direction; the rear floor panel 21 is arranged between the two rear side panels 40, and is connected to the two rear side panels 40 along the Z direction on one side facing away from the rear floor longitudinal beam assembly 22; each rear side panel 40 is connected to the rear panel 26 and the corresponding door sill beam 14 at both ends along the X direction, and the rear side panel 40 is provided with a rear suspension assembly mounting point facing the Z direction, so as to cooperate with the rear floor longitudinal beam assembly 22 to install the rear suspension assembly.

[0065] In the embodiment of the present application, the two rear side panels 40 are arranged at intervals along the Y direction, the outer longitudinal beam 222 is opposite to the rear side panel 40 on the same side in the Z direction, the rear floor panel 21 is arranged between the two rear side panels 40, and the side away from the rear floor longitudinal beam assembly 22 is connected to the two rear side panels 40 along the Z direction, and the front and rear ends of each rear side panel 40 along the X direction are respectively connected to the rear panel 26 and the corresponding door sill beam 14, and a rear suspension assembly mounting point (unnumbered) is designed on the top of the rear side panel 40. The rear suspension assembly mounting point is specifically a shock absorber mounting turret to realize the installation and fixation of the shock absorber in the rear suspension assembly, so as to cooperate with the rear floor longitudinal beam assembly 22 to realize the stable connection of the rear suspension assembly, thereby significantly reducing the ground clearance H of the rear floor panel 21.

[0066] In some embodiments, such as Figure 6As shown, the height H of the rear floor panel 21 from the ground is 340-380 mm. Compared with the prior art in which the height H of the rear floor panel 21 from the ground is higher than 500 mm, the height H of the rear floor panel 21 from the ground in this embodiment is significantly reduced, so as to facilitate the expansion of vehicle leisure, entertainment and other scenes, and to facilitate cargo loading and unloading and the getting on and off of special tools such as wheelchairs.

[0067] In some embodiments, Figure 2 As shown, the vehicle structure 100 further includes a front cabin assembly 50 , which is connected to an end of the front floor assembly 10 away from the rear floor assembly 20 in the X direction.

[0068] refer to Figure 8 Another embodiment of the present invention further provides a car 1000 , comprising the vehicle structure 100 as described above, and further comprising a rear suspension assembly, wherein the rear suspension assembly is connected to the rear floor longitudinal beam assembly 22 .

[0069] In summary, the vehicle structure 100 and the automobile 1000 provided by the embodiments of the present invention have an optimized design of the vehicle structure 100, and the floor surface formed by the front floor panel and the rear floor panel of the vehicle structure has an ultra-low ground clearance H, and the ground clearance H of the rear floor panel is significantly reduced, which effectively eliminates the height difference between the front floor panel and the rear floor panel, and greatly improves the flatness of the front floor panel and the rear floor panel, which is beneficial to the loading and unloading of goods, and at the same time promotes the improvement of the passenger space in the vehicle, making it more convenient for the disabled to enter and exit with special tools such as wheelchairs.

[0070] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vehicle structure (100), characterized in that: include: A front floor assembly (10), comprising a front floor panel (11); as well as The rear floor assembly (20) includes: a rear floor panel (21) connected to the front floor panel (11) along the X direction; and Two rear floor longitudinal beam assemblies (22), the two rear floor longitudinal beam assemblies (22) are arranged at intervals along the Y direction and connected to the rear floor panel (21) along the Z direction; The two rear floor longitudinal beam assemblies (22) have the same height in the Z direction and are lower than the front floor panel (11), so as to be used for connecting the rear suspension assembly and allowing the rear floor panel (21) to have the same height in the Z direction as the front floor panel (11).

2. The vehicle structure (100) according to claim 1, characterized in that: The rear floor assembly (20) further includes a rear seat rear cross beam (23) and a rear floor middle cross beam (24); The rear seat rear cross beam (23) is connected to one end of the two rear floor longitudinal beam assemblies (22) toward the front floor panel (11) along the X direction; The rear floor middle cross beam (24) is arranged at intervals along the X direction at one end of the rear seat rear cross beam (23) away from the front floor panel (11), and is connected between the two rear floor longitudinal beam assemblies (22) along the Y direction; The rear cross beam (23) of the rear seat and the middle cross beam (24) of the rear floor are both connected to the rear floor panel (21) along the Z direction, and the Y direction spacing of the two rear floor longitudinal beam assemblies (22) from the rear cross beam (23) of the rear seat to the middle cross beam (24) of the rear floor gradually decreases along the X direction.

3. The vehicle structure (100) according to claim 2, characterized in that: The two rear floor longitudinal beam assemblies (22) each include an inner longitudinal beam (221), an outer longitudinal beam (222) and at least one reinforcing cross beam (223); The inner longitudinal beam (221) and the outer longitudinal beam (222) of each rear floor longitudinal beam assembly (22) are arranged at intervals along the Y direction, and one end along the X direction facing the front floor assembly (10) is connected to the rear cross beam (23) of the rear seat; The two ends of the rear floor middle cross beam (24) along the Y direction are connected between the two inner longitudinal beams (221); The outer longitudinal beam (222) of each rear floor longitudinal beam assembly (22) is connected to the inner longitudinal beam (221) along the X direction, and is at least partially arranged with the inner longitudinal beam (221) in a spaced relationship along the Y direction; the reinforcing cross beam (223) is arranged between the outer longitudinal beam (222) and the inner longitudinal beam (221), and is connected to the outer longitudinal beam (222) and the inner longitudinal beam (221) along the Y direction; The inner longitudinal beam (221) and the outer longitudinal beam (222) are used for installing the rear suspension assembly in the Z direction.

4. The vehicle structure (100) according to claim 3, characterized in that: The inner longitudinal beam (221) comprises an avoidance section (221A) and an extension section (221B); The avoidance section (221A) is connected to the extension section (221B) along the X direction, one end of the avoidance section (221A) away from the extension section (221B) is connected to the rear cross beam (23) of the rear seat along the X direction, and both ends of the cross beam (24) in the rear floor in the Y direction are respectively connected to the extension sections (221B) of the two inner longitudinal beams (221); The avoidance sections (221A) of the two inner longitudinal beams (221) gradually decrease in spacing along the Y direction toward the extension section (221B); The outer longitudinal beam (222) is connected to the avoidance section (221A) along the X direction, and is spaced apart from the extension section (221B) along the Y direction.

5. The vehicle structure (100) according to claim 2, characterized in that: The rear floor assembly (20) further includes a rear seat front cross beam (25) and a rear panel (26); The rear seat front cross beam (25) and the rear floor middle cross beam (24) are arranged at intervals along the X direction and connected to a side of the rear floor panel (21) away from the rear seat rear cross beam (23) along the Z direction. The rear seat rear cross beam (23) is arranged between the rear seat front cross beam (25) and the rear floor middle cross beam (24) along the X direction. The rear panel (26) is connected to an end of the rear floor panel (21) away from the front floor panel (11) along the X direction, and is also connected to the two rear floor longitudinal beam assemblies along the X direction.

6. The vehicle structure (100) according to claim 5, characterized in that: The vehicle structure (100) further includes a battery pack assembly (30); The rear cross beam (23) of the rear seat, the rear floor panel (21) and the front floor panel (11) enclose a receiving space; The battery pack assembly (30) is arranged in the accommodating space and is connected to the front floor panel (11) and the rear seat front cross beam (25) along the Z direction and is connected to the rear seat rear cross beam (23) along the X direction.

7. The vehicle structure (100) according to claim 6, characterized in that: The front floor assembly (10) further comprises a front seat front cross beam (12), a front seat rear cross beam (13) and two door sill beams (14); The two threshold beams (14) are arranged at intervals along the Y direction, and the front floor panel (11) is arranged between the two threshold beams (14) and is respectively connected to the two threshold beams (14) in the Y direction; The front seat front cross beam (12) and the front seat rear cross beam (13) are arranged at intervals along the X direction and connected to a side of the front floor panel (11) away from the battery pack assembly (30) along the Z direction; The two door sill beams (14) are both connected to the battery pack assembly (30) in the Y direction and to the rear cross beam (23) of the rear seat in the Y direction; The front seat front cross beam (12) and the front seat rear cross beam (13) are both connected to the battery pack assembly (30) in the Z direction.

8. The vehicle structure (100) according to claim 7, characterized in that: The vehicle structure (100) further comprises two rear side panels (40), wherein the two rear side panels (40) are arranged at intervals along the Y direction; The rear floor panel (21) is arranged between the two rear side panels (40), and is connected to the two rear side panels (40) along the Z direction on a side facing away from the rear floor longitudinal beam assembly (22); Each of the rear side panels (40) is respectively connected to the rear panel (26) and the corresponding door sill beam (14) at two ends along the X direction, and the rear side panel (40) is provided with a rear suspension assembly mounting point facing the Z direction, so as to cooperate with the rear floor longitudinal beam assembly (22) to mount the rear suspension assembly.

9. The vehicle structure (100) according to any one of claims 1 to 8, characterized in that: The height (H) of the rear floor panel (21) from the ground is 340-380 mm.

10. An automobile (1000), characterized in that: The vehicle structure (100) comprises the vehicle structure (100) as claimed in any one of claims 1 to 9, and further comprises a rear suspension assembly, wherein the rear suspension assembly is connected to the rear floor longitudinal beam assembly (22).

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