Floor assembly and vehicle

Abstract

The application relates to the technical field of vehicle body arrangement, in particular to a floor assembly and a vehicle. The floor assembly comprises a first longitudinal beam, a second longitudinal beam, a first cross beam, a second cross beam, a first reinforcing cross beam, a first reinforcing longitudinal beam, a second reinforcing longitudinal beam, a first floor and a second floor. The first longitudinal beam and the second longitudinal beam are arranged side by side along a first direction. The second cross beam, the first reinforcing cross beam and the second reinforcing cross beam are connected to the first longitudinal beam and the second longitudinal beam. The first cross beam, the first longitudinal beam, the second cross beam and the second longitudinal beam form a first cavity, the first floor covers the first cavity, the second cross beam, the first longitudinal beam and the second longitudinal beam form a second cavity, and the second floor covers the second cavity. One end of the first reinforcing longitudinal beam and one end of the second reinforcing longitudinal beam are connected to the first reinforcing cross beam, and the other end of the first reinforcing longitudinal beam and the other end of the second reinforcing longitudinal beam extend to the side of the second floor away from the first cross beam. The floor assembly can improve the deformation resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body arrangement, in particular to a floor assembly and a vehicle. BACKGROUND

[0002] A vehicle is a tool for carrying goods and passengers, which accommodates goods and passengers through a passenger cabin.

[0003] The passenger cabin is generally enclosed by a roof, a floor, side walls, doors, a front wall and a rear wall, and the cabin can accommodate goods and arrange seats for passengers to sit on.

[0004] In the related art, the floor is the main impact-bearing part when a collision occurs, and thus is prone to deformation, which may cause injury to passengers. SUMMARY

[0005] In view of this, the present application provides a floor assembly and a vehicle to improve the ability to resist deformation.

[0006] Specifically, the technical scheme includes the following:

[0007] A first aspect of the present application provides a floor assembly, which comprises a first longitudinal beam, a second longitudinal beam, a first cross beam, a second cross beam, a first reinforcing cross beam, a first reinforcing longitudinal beam, a second reinforcing longitudinal beam, a first floor and a second floor, wherein,

[0008] The first longitudinal beam and the second longitudinal beam are arranged side by side along a first direction;

[0009] The second cross beam, the first reinforcing cross beam and the first cross beam are connected to the first longitudinal beam and the second longitudinal beam;

[0010] The first cross beam, the first longitudinal beam, the second cross beam and the second longitudinal beam form a first cavity, the first floor covers the first cavity, the second cross beam, the first longitudinal beam and the second longitudinal beam form a second cavity, and the second floor covers the second cavity;

[0011] One end of the first reinforcing longitudinal beam and one end of the second reinforcing longitudinal beam are connected to the first reinforcing cross beam, and the other end of the first reinforcing longitudinal beam and the other end of the second reinforcing longitudinal beam extend to a side of the second floor away from the first cross beam.

[0012] Optionally, the same side of the first reinforcing cross beam, the first reinforcing longitudinal beam and the second reinforcing longitudinal beam is attached to and connected to the second floor.

[0013] Optionally, the floor assembly comprises a second reinforcing cross beam, which is located between the first reinforcing longitudinal beam and the second reinforcing longitudinal beam and connected to the first reinforcing longitudinal beam and the second reinforcing longitudinal beam.

[0014] Optionally, the first reinforcing longitudinal beam and the second reinforcing longitudinal beam intersect with a horizontal plane.

[0015] Optionally, the first longitudinal beam comprises a first body, an extension section and a connecting section, the first body and the extension section are connected and extend along the first direction, the connecting section is located on one side of the first body and connects the first floor and the first body and the second floor and the first body.

[0016] Optionally, the floor assembly comprises a plurality of third reinforcing longitudinal beams, the first ends of the plurality of third reinforcing longitudinal beams are connected with the first cross beam, the plurality of third reinforcing longitudinal beams are arranged at intervals along the first direction, and the second ends of the plurality of third reinforcing longitudinal beams extend away from the first floor.

[0017] Optionally, the floor assembly comprises a third cross beam and a fourth cross beam, the third cross beam and the fourth cross beam are located in the first cavity, the third cross beam and the fourth cross beam are attached to the first floor on the same side, and the third cross beam and the fourth cross beam connect the first longitudinal beam and the second longitudinal beam.

[0018] Optionally, one side of the second cross beam is attached to the second floor, and the second cross beam and the first reinforcing cross beam are located on opposite sides of the second floor, respectively.

[0019] Optionally, the floor assembly comprises a first threshold, the first threshold is attached to the first longitudinal beam and connected with the first longitudinal beam.

[0020] The second aspect of the application provides an automobile, which comprises the floor assembly according to the above technical solution.

[0021] The technical solution provided by the embodiments of the application has at least the following beneficial effects: the first longitudinal beam, the second longitudinal beam and the first cross beam can withstand impact from the corresponding direction, wherein the impact on the first longitudinal beam and the second longitudinal beam can be transmitted to each other through the first cross beam and the second cross beam to maintain the shape of the first cavity and the second cavity, which is conducive to reducing the deformation of the first floor covering the first cavity and the second floor covering the second cavity due to the impact, thereby reducing the situation caused by the deformation of the passenger's hands. The first longitudinal beam and the second longitudinal beam can improve the ability of the second floor to resist deformation due to impact, thereby reducing the deformation of the second floor directly caused by impact. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] Figure 1 A bottom view of a floor assembly provided by an embodiment of the present application;

[0024] Figure 2 A top view of a floor assembly provided by an embodiment of the present application;

[0025] Figure 3 A structural schematic view of a first longitudinal beam provided by an embodiment of the present application;

[0026] Figure 4 A structural schematic view of a first threshold provided by an embodiment of the present application;

[0027] Figure 5 A structural schematic view of a first floor provided by an embodiment of the present application;

[0028] Figure 6 A structural schematic view of a second floor provided by an embodiment of the present application;

[0029] Figure 7 A structural schematic view of a first cross beam provided by an embodiment of the present application;

[0030] Figure 8 A structural schematic view of a second cross beam provided by an embodiment of the present application;

[0031] Figure 9 A full sectional schematic view of a second cross beam provided by an embodiment of the present application.

[0032] The reference signs in the drawings represent respectively:

[0033] 10, first longitudinal beam; 11, first body; 111, first reinforcing rib; 112, first mounting structure; 113, first flange surface; 116, second flange surface; 12, extension section; 13, connecting section;

[0034] 20, second longitudinal beam;

[0035] 30, first threshold; 312, threshold end; 313, fourth flange surface;

[0036] 40, second threshold;

[0037] 50, first floor; 51, seat cross beam; 511, third reinforcing rib; 512, third flange face; 52, middle passage extension plate; 53, first sub-floor; 531, fourth flange face; 54, second sub-floor; 55, third sub-floor; 551, fifth reinforcing rib; 553, fuel tank window; 56, third cross beam; 57, fourth cross beam; 58, connecting reinforcing plate;

[0038] 60, second floor; 611, sixth reinforcing rib; 62, third connecting plate; 64, first reinforcing cross beam; 65, first reinforcing longitudinal beam; 66, second reinforcing cross beam; 67, second reinforcing longitudinal beam;

[0039] 70, first cross beam; 711, second reinforcing rib; 712, first flange face; 713, second flange face; 72, third reinforcing longitudinal beam; 73, second connecting plate;

[0040] 80, second cross beam; 81, first connecting plate; 811, third flange face; 813, weight-reducing hole.

[0041] The specific embodiments of the present application have been shown and described in the above drawings, and will be described in more detail hereinafter. The drawings and the written description are not intended to restrict the scope of the present application in any way, but are merely intended to illustrate the concept of the present application to those skilled in the art by reference to a particular embodiment. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of the present application.

[0043] The positional nouns such as "upper", "lower", "lateral" and the like involved in the embodiments of the present application are generally based on the relative relationship of the positions shown in the drawings, and these positional nouns are merely used to more clearly describe the structure and the relationship between the structures, and are not intended to describe absolute positions. When the product is placed in different attitudes, the positions may change, for example, "upper" and "lower" may be interchanged. Figure 1

[0044] Unless otherwise defined, all the technical terms used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art.

[0045] In order to make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0046] ​A first aspect of the present application provides a floor assembly, as shown in Figure 1 and Figure 2 The floor assembly comprises a first longitudinal beam 10, a second longitudinal beam 20, a first cross beam 70, a second cross beam 80, a first reinforcing cross beam 64, a first reinforcing longitudinal beam 65, a second reinforcing longitudinal beam 67, a first floor 50 and a second floor 60, wherein,

[0047] The first longitudinal beam 10 and the second longitudinal beam 20 are arranged side by side along a first direction;

[0048] The second cross beam 80, the first reinforcing cross beam 64 and the first cross beam 70 are connected to the first longitudinal beam 10 and the second longitudinal beam 20;

[0049] The first cross beam 70, the first longitudinal beam 10, the second cross beam 80 and the second longitudinal beam 20 form a first cavity, and the first floor 50 covers the first cavity; the second cross beam 80, the first longitudinal beam 10 and the second longitudinal beam 20 form a second cavity, and the second floor 60 covers the second cavity;

[0050] One end of the first reinforcing longitudinal beam 65 and one end of the second reinforcing longitudinal beam 67 are connected to the first reinforcing cross beam 64, and the other end of the first reinforcing longitudinal beam 65 and the other end of the second reinforcing longitudinal beam 67 extend to a side of the second floor 60 away from the first cross beam 70.

[0051] It can be understood that the first longitudinal beam 10, the second longitudinal beam 20 and the first cross beam 70 can withstand impact from the corresponding direction, and the impact on the first longitudinal beam 10 and the second longitudinal beam 20 can be transmitted to each other through the second cross beam 80 to maintain the shape of the first cavity and the second cavity. This is conducive to reducing the deformation of the first floor 50 covering the first cavity and the second floor 60 covering the second cavity due to the impact, thereby reducing the situation caused by the deformation of the passenger's hands. The first longitudinal beam 10 and the second longitudinal beam 20 can improve the ability of the second floor 60 to resist deformation due to impact, thereby reducing the deformation of the second floor 60 directly subjected to impact.

[0052] In the embodiment of the present application, the first direction can be the length direction of the automobile.

[0053] In the embodiment of the present application, the first cross beam 70 and the first floor 50, the second cross beam 80 and the first longitudinal beam 10, and the second cross beam 80 and the second longitudinal beam 20 can be connected by welding.

[0054] In the embodiment of the present application, the shape of the part of the longitudinal section of the first longitudinal beam 10 can be substantially in the shape of a U, which is conducive to improving the bending deformation resistance of the first longitudinal beam 10. The shape of each longitudinal section of the first longitudinal beam 10 can be the same or different.

[0055] In the embodiment of the present application, the partial longitudinal section shape of the second longitudinal beam 20 can be substantially in the shape of a U, which is beneficial to improve the bending deformation resistance of the second longitudinal beam 20. The shape of each longitudinal section of the second longitudinal beam 20 can be the same or different.

[0056] In the embodiment of the present application, as shown in Figure 3 The first reinforcing rib 111 can be arranged on the inner side of the first longitudinal beam 10, and can protrude to the inner side of the U shape or to the outer side of the U shape. The second longitudinal beam 20 can be arranged with the reinforcing structure of the first longitudinal beam 10, and has the same effect, which will not be described here.

[0057] In the embodiment of the present application, the bottom of the first longitudinal beam 10 can be arranged with the first mounting structure 112, which can be used to connect with the rear suspension. The first mounting structure 112 can be a hole. The second longitudinal beam 20 can be arranged with the mounting structure of the first longitudinal beam 10, and has the same effect, which will not be described here.

[0058] In the embodiment of the present application, the side of the second longitudinal beam 20 can directly bear the impact and be deformed to recess to the first cavity. The second transverse beam 80 can transmit the impact from the second longitudinal beam 20 to the first longitudinal beam 10. In this way, by dispersing the impact, the deformation of the first longitudinal beam 10 can be reduced.

[0059] In the embodiment of the present application, the second transverse beam 80 can be arranged with the weight-reducing hole 813.

[0060] In the embodiment of the present application, as shown in Figure 7 The second reinforcing rib 711 can be arranged on the first transverse beam 70, and the number of the second reinforcing rib 711 can be multiple. The multiple second reinforcing ribs 711 can be arranged in sequence along the length direction of the first transverse beam 70. The first reinforcing rib 111 can be a concave or convex structure, which is integrally formed with the first transverse beam 70. The first transverse beam 70 can be arranged with the first flange surface 712 and the second flange surface 713 on both sides, and the first flange surface 712 and the second flange surface 713 can be respectively welded to the first floor 50.

[0061] In the embodiment of the present application, as shown in Figure 8 and Figure 9As shown, two ends of the second cross beam 80 are respectively arranged with a first connecting plate 81, the first connecting plate 81 is welded with the second floor 60 through third flange surfaces 811 on two sides thereof to realize connection with the second floor 60, which is beneficial to covering the second floor 60 on the second cavity. In the embodiment of the present application, the first connecting plate 81 can have a U-shaped cross section. In the embodiment of the present application, the first connecting plate 81 can be connected with the end of the second cross beam 80 by welding. In the embodiment of the present application, the first connecting plate 81 can also be used for welding with the side wall assembly, so that the vehicle body forms a cavity.

[0062] In the embodiment of the present application, the first floor 50 comprises a seat cross beam 51, the seat cross beam 51 is fitted and welded with the outer side of the first cross beam 70, and the seat cross beam 51 connects the first longitudinal beam 10 and the second longitudinal beam 20. The seat cross beam 51 is welded with the vehicle body component in front through a third flange surface 512. The seat cross beam 51 is arranged with a plurality of third reinforcing ribs 511, which can be protrusions or recesses.

[0063] In the embodiment of the present application, the first floor 50 comprises a center tunnel extension plate 52, which is located between the two seat cross beams 51 and connected with the two seat cross beams 51. The center tunnel extension plate 52 is arranged with fourth reinforcing ribs, which can improve the rigidity of the center tunnel extension plate 52, and the fourth reinforcing ribs can be protrusions or recesses.

[0064] In the embodiment of the present application, the opposite sides of the second floor 60 are arranged with third connecting plates 62, which can be welded with the second floor 60.

[0065] In the embodiment of the present application, the second floor 60 is arranged with sixth reinforcing ribs 611.

[0066] In some embodiments of the present application, as shown in Figure 1 The same side of the first reinforcing cross beam 64, the first reinforcing longitudinal beam 65 and the second reinforcing longitudinal beam 67 is fitted and connected with the second floor 60.

[0067] It can be understood that, since the boundary of the second cavity is an open figure, at the open position, i.e. the opening formed by the end of the first longitudinal beam 10 and the end of the second longitudinal beam 20, the resistance to impact is relatively weak. By fitting and connecting the same side of the first reinforcing cross beam 64, the first reinforcing longitudinal beam 65 and the second reinforcing longitudinal beam 67 with the second floor 60, the ability of the second floor 60 to resist deformation is improved, and the deformation of the second floor 60 is reduced.

[0068] In some embodiments of the present application, as shown in Figure 6As shown, the floor assembly includes a second reinforcing cross member 66 , which is located between the first reinforcing longitudinal member 65 and the second reinforcing longitudinal member 67 and connects the first reinforcing longitudinal member 65 and the second reinforcing longitudinal member 67 .

[0069] It can be understood that the second reinforcing cross beam 66 connects the first reinforcing longitudinal beam 65 and the second reinforcing longitudinal beam 67, which is conducive to forming a cavity with a closed-shaped boundary with the first reinforcing cross beam 64, the first reinforcing longitudinal beam 65 and the second reinforcing longitudinal beam 67. In this way, the four can transmit impact to each other, thereby improving the ability of the second floor 60 to resist deformation.

[0070] In the embodiment of the present application, the longitudinal cross-sections of the first reinforcing cross-beam 64 , the second reinforcing cross-beam 66 , the first reinforcing longitudinal beam 65 and the second reinforcing longitudinal beam 67 are all in the shape of a "X" (Chinese character for "Four-character"). The openings of the three are facing the second floor 60 and are connected to the second floor 60 by welding.

[0071] In some of the embodiments of this application, Figure 6 As shown, the first reinforcement longitudinal beam 65 and the second reinforcement longitudinal beam 67 intersect the horizontal plane.

[0072] As you can understand, this arrangement allows for a certain amount of space in the height direction between the first and second reinforcing longitudinal beams 65 and 67 for the spare tire. The spare tire can be installed between the first and second reinforcing longitudinal beams 65 and 67, minimizing contact with the ground. This provides the passenger compartment with ample storage and seating space, while also reducing tire odor inside the cabin, improving overall vehicle comfort.

[0073] In the embodiment of the present application, the first reinforcing longitudinal beam 65 has the position where it intersects with the first reinforcing cross beam 64 as the vertex, the side connected to the vertex on the horizontal plane as the starting side, and the first reinforcing longitudinal beam 65 as the ending side to form an angle, and the angle is less than 90°.

[0074] In the embodiment of the present application, the second reinforcing longitudinal beam 67 has the position where it intersects with the first reinforcing transverse beam 64 as the vertex, the side connected to the vertex on the horizontal plane as the starting side, and the second reinforcing longitudinal beam 67 as the ending side to form an angle, and the angle is less than 90°.

[0075] In some of the embodiments of this application, Figure 3 As shown, the first longitudinal beam 10 includes a first body 11, an extension section 12 and a connecting section 13. The first body 11 and the extension section 12 are connected and extend along a first direction. The connecting section 13 is located on one side of the first body 11 and connects the first floor 50 and the first body 11 as well as the second floor 60 and the first body 11.

[0076] It can be understood that the first body 11 and the extension section 12 can function to bear impact. The connection section 13 is used to connect the first floor 50 and the second floor 60. The extension section 12 can be adjusted in length according to actual requirements involved, so that the length of the floor assembly is matched with design requirements. Exemplarily, by increasing the length of the extension section 12, the overall length of the first longitudinal beam 10 is extended, and vice versa. In this way, it is beneficial to improve the universality of the floor assembly on automobiles of different sizes and reduce the development cost of molds. In addition, by adjusting the thickness and material strength of the extension section 12, it is also beneficial to adapt the floor assembly to different design requirements of automobiles.

[0077] In the embodiment of the present application, the number of the connection sections 13 can be multiple, and each connection section 13 is connected to the first floor 50 or the second floor 60 by welding, wherein the longitudinal sectional shape of the connection section 13 can be a U shape, so as to improve the connection performance with the first floor 50 or the second floor 60.

[0078] In the embodiment of the present application, the longitudinal sectional shape of the first body 11 and the extension section 12 is a U shape.

[0079] In the embodiment of the present application, the structure of the second longitudinal beam 20 can be symmetrical to the structure of the first longitudinal beam 10, so that the floor assembly has similar performance in the stress direction of the first longitudinal beam 10 and the stress direction of the second longitudinal beam 20.

[0080] In some embodiments of the present application, as shown in Figure 7 The floor assembly comprises a plurality of third reinforcing longitudinal beams 72, the first ends of the plurality of third reinforcing longitudinal beams 72 are connected to the first cross beam 70, the plurality of third reinforcing longitudinal beams 72 are arranged in the first direction at intervals, and the second ends of the plurality of third reinforcing longitudinal beams 72 extend away from the first floor 50.

[0081] It can be understood that the third reinforcing longitudinal beams 72 can be used to be connected to components located in front, such as a front floor cross beam framework, and the plurality of third reinforcing longitudinal beams 72 can disperse impact from the front to the first cross beam 70. The dispersed impact can reduce the deformation of the first cross beam 70, so as to improve the ability of the floor assembly to resist deformation.

[0082] In the embodiment of the present application, the longitudinal cross-section of the third reinforcing longitudinal beam 72 can be in the shape of a cross, with its opening facing the first cross-beam 70 and overlapping and connected to the first cross-beam 70. A second connecting plate 73 is also disposed at the end of the third reinforcing longitudinal beam 72 near the first cross-beam 70, and the second connecting plate 73 overlaps and connects to the first cross-beam 70. In the event of a collision, the impact from the front can be transmitted through each third reinforcing longitudinal beam 72 to the first cross-beam 70, and then through the first cross-beam 70 to the first longitudinal beam 10 and the second longitudinal beam 20. This can significantly reduce the collision force, enhance the structural integrity of the entire floor assembly, and protect the passenger compartment and passengers.

[0083] In some of the embodiments of this application, Figure 5 and Figure 6 As shown, the floor assembly includes a third cross beam 56 and a fourth cross beam 57. The third cross beam 56 and the fourth cross beam 57 are both located in the first cavity. The third cross beam 56 and the fourth cross beam 57 are both attached to the first floor 50 on the same side. The third cross beam 56 and the fourth cross beam 57 are both connected to the first longitudinal beam 10 and the second longitudinal beam 20.

[0084] It is understood that the third crossbeam 56 and the fourth crossbeam 57 both play a role in transmitting impact and are also conducive to improving the shape stability of the first cavity. The third crossbeam 56 and the fourth crossbeam 57 are both in contact with the first floor 50 and can help support the first floor 50.

[0085] In the embodiment of the present application, the longitudinal cross-sections of the third cross-beam 56 and the fourth cross-beam 57 are both in the shape of a "F" (S). The openings of the third cross-beam 56 and the fourth cross-beam 57 face the first floor panel 50 and are welded to the first floor panel 50. This can increase the lateral stiffness of the floor assembly, thereby improving the deformation resistance of the vehicle in side collisions.

[0086] In the embodiment of the present application, the third cross beam 56 and the fourth cross beam 57 are connected by a connecting reinforcement plate 58 to improve the stability of both.

[0087] In some of the embodiments of this application, Figure 1 and Figure 2 As shown, one side of the second cross beam 80 is attached to the second floor panel 60 , and the second cross beam 80 and the first reinforcing cross beam 64 are respectively located on two opposite sides of the second floor panel 60 .

[0088] It is understandable that the first reinforcing crossbeam 64 mainly supports the second floor 60 and transmits impact, while the second crossbeam 80 can support the weight of the cargo and seats from the vehicle body with the assistance of the second floor 60, which is conducive to improving the supporting effect.

[0089] In some of the embodiments of this application, Figure 1As shown, the floor assembly comprises a first threshold 30, which is attached to and connected with the first longitudinal beam 10.

[0090] It can be understood that the first threshold 30 is beneficial to further alleviate the impact and transmit the impact to the first longitudinal beam 10, while being wrapped outside the first longitudinal beam 10, which can provide protection for the first longitudinal beam 10.

[0091] In the embodiment of the present application, as shown in Figure 4 the longitudinal section of the first threshold 30 can be in the shape of a U, the opening of which faces the first longitudinal beam 10 and is attached to the first longitudinal beam 10, and the two sides of the longitudinal section are respectively connected with the first floor 50 and other components of the vehicle body, thereby achieving the installation of the floor assembly, and the bottom of the longitudinal section is attached to and welded with the first flange surface 113 of the first longitudinal beam 10. One end of the first threshold 30 has a threshold end 312, which can be welded with components located in front to achieve the installation of the floor assembly, and the fourth flange surface of the first threshold 30 is attached to and welded with the second flange surface 116 of the first longitudinal beam 10. When the first longitudinal beam 10 is impacted, the impact can be transmitted to the first floor 50 through the first threshold 30 and to other components of the vehicle body through the two sides.

[0092] In the embodiment of the present application, the floor assembly can further comprise a second threshold, which is symmetrically arranged on the opposite sides of the first longitudinal beam 10 with the first threshold 30.

[0093] In the embodiment of the present application, the structure of the second threshold is symmetrical to that of the first threshold 30.

[0094] In the embodiment of the present application, the first floor 50 comprises a first sub-floor 53, a second sub-floor 54 and a third sub-floor 55, the side edges of the first sub-floor 53 and the second sub-floor 54 are connected with the side edges of the third sub-floor 55, and the third transverse beam 56 and the fourth transverse beam 57 are both located on the third sub-floor 55.

[0095] In the embodiment of the present application, one side of the first sub-floor 53 is connected with the first threshold 30 through the fourth flange surface 531, and the second sub-floor 54 is connected with the second threshold through the fifth flange surface.

[0096] In the embodiment of the present application, the first sub-floor 53 can be further welded and connected with the first longitudinal beam 10 through the sixth flange surface, and the second sub-floor 54 is welded and connected with the second longitudinal beam 20 through the seventh flange surface.

[0097] In the embodiment of the present application, the third sub-floor 55 is arranged with a fifth reinforcing rib 551, which can improve the structural rigidity and modal of the third sub-floor 55.

[0098] In the embodiment of the present application, the third sub-floor 55 is arranged with an oil tank window 553.

[0099] The second aspect of the present application provides an automobile, comprising the floor assembly as described above.

[0100] It can be understood that, due to the adoption of the floor assembly of the above embodiment, the automobile of the present application has the same technical effects as the above embodiment, which will not be described here.

[0101] In the embodiment of the present application, the automobile can be an electric vehicle, a fuel vehicle or a hybrid vehicle.

[0102] In the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise explicitly limited.

[0103] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of this application following the general principles of the application and including known or customary technical means in the art not disclosed in the present application. The specification and examples are only considered as exemplary.

[0104] It should be understood that the present application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present application is only limited by the appended claims.

Claims

1. A floor assembly characterized by, The floor assembly comprises a first longitudinal beam (10), a second longitudinal beam (20), a first cross beam (70), a second cross beam (80), a first reinforcing cross beam (64), a first reinforcing longitudinal beam (65), a second reinforcing cross beam (66), a second reinforcing longitudinal beam (67), a first floor (50) and a second floor (60), wherein, The first longitudinal beam (10) and the second longitudinal beam (20) are arranged side by side along a first direction; The second cross beam (80), the first reinforcing cross beam (64) and the first cross beam (70) are connected to the first longitudinal beam (10) and the second longitudinal beam (20); The first cross beam (70), the first longitudinal beam (10), the second cross beam (80) and the second longitudinal beam (20) form a first cavity, the first floor (50) covers the first cavity, the second cross beam (80), the first longitudinal beam (10) and the second longitudinal beam (20) form a second cavity, and the second floor (60) covers the second cavity; One end of the first reinforcing longitudinal beam (65) and one end of the second reinforcing longitudinal beam (67) are connected to the first reinforcing cross beam (64), and the other end of the first reinforcing longitudinal beam (65) and the other end of the second reinforcing longitudinal beam (67) extend to a side of the second floor (60) away from the first cross beam (70); The second reinforcing cross beam (66) is located between the first reinforcing longitudinal beam (65) and the second reinforcing longitudinal beam (67) and is connected to the first reinforcing longitudinal beam (65) and the second reinforcing longitudinal beam (67).

2. The floor assembly of claim 1, wherein, The same side of the first reinforcing cross beam (64), the first reinforcing longitudinal beam (65) and the second reinforcing longitudinal beam (67) is attached to and connected to the second floor (60).

3. The floor assembly of claim 1, wherein, The first reinforcing longitudinal beam (65) and the second reinforcing longitudinal beam (67) intersect with a horizontal plane.

4. The floor assembly of claim 1, wherein, The first longitudinal beam (10) comprises a first body (11), an extension section (12) and a connecting section (13), the first body (11) and the extension section (12) are connected and extend along the first direction, and the connecting section (13) is located on one side of the first body (11) and connects the first floor (50) and the first body (11) and connects the second floor (60) and the first body (11).

5. The floor assembly of claim 1, wherein, The floor assembly comprises a plurality of third reinforcing longitudinal beams (72), the first ends of the plurality of third reinforcing longitudinal beams (72) are connected to the first cross beam (70), the plurality of third reinforcing longitudinal beams (72) are arranged at intervals along the first direction, and the second ends of the plurality of third reinforcing longitudinal beams (72) extend away from the first floor (50).

6. The floor assembly of claim 1, wherein, The floor assembly comprises a third cross beam (56) and a fourth cross beam (57), the third cross beam (56) and the fourth cross beam (57) are located in the first cavity, the same side of the third cross beam (56) and the fourth cross beam (57) is attached to the first floor (50), and the third cross beam (56) and the fourth cross beam (57) are connected to the first longitudinal beam (10) and the second longitudinal beam (20).

7. The floor assembly of claim 1, wherein, One side of the second cross beam (80) is attached to the second floor (60), and the second cross beam (80) and the first reinforcing cross beam (64) are respectively located on opposite sides of the second floor (60).

8. The floor assembly of claim 1, wherein, The floor assembly comprises a first threshold (30), which is attached to the first longitudinal beam (10) and connected with the first longitudinal beam (10).

9. An automobile characterized by comprising: The automobile comprises the floor assembly according to any one of claims 1 to 8.

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