Floor structure, floor assembly and vehicle

Abstract

The utility model discloses a floor structure, a floor assembly and a vehicle. The floor structure comprises a floor board and a seat cross beam. The seat cross beam is arranged on the floor surface, and the seat cross beam comprises a hollow beam body and an air duct channel arranged on the hollow beam body. According to the floor structure, the air duct channel is arranged on the hollowed-out beam body of the seat cross beam, the air duct can penetrate through the air duct channel, so that the air duct does not need to be arranged on the seat cross beam in a crossing mode, distortion of the air duct is avoided, and the installation space is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to floor assembly technical field especially relates to a floor structure, floor assembly and vehicle. BACKGROUND

[0002] Floor structure is used to play the basic support function, is widely used in vehicle. In floor structure, usually set up the crossbeam protruding from the floor panel on the floor panel to enhance the support strength of floor structure.

[0003] But there are still some other components with other purposes near the floor structure, for example, air duct for ventilation, when the air duct is laid on the floor structure, the crossbeam on the floor panel will form an obstruction to it, the air duct needs to cross the crossbeam, resulting in the air duct itself existing distortion, so that the air duct installation occupies too much space, cannot satisfy the lightweight, integrated design demand. SUMMARY

[0004] The utility model embodiment provides a floor structure, floor assembly and vehicle to solve the crossbeam of the prior floor structure will form an obstruction to the air duct, resulting in the air duct distortion, too much space occupied problem.

[0005] The utility model embodiment provides a floor structure, comprising floor panel and seat crossbeam;

[0006] The seat crossbeam is arranged on the floor panel, and the seat crossbeam comprises hollow beam body and air duct channel arranged on the hollow beam body.

[0007] Preferably, the hollow beam body comprises crossbeam plate and crossbeam support plate, and two ends of the crossbeam support plate are respectively connected with the crossbeam plate and the floor panel.

[0008] The crossbeam plate, the floor panel and the crossbeam support plate enclose to form the air duct channel.

[0009] Preferably, the seat crossbeam further comprises reinforcing structure arranged in the hollow beam body.

[0010] The reinforcing structure comprises at least one first reinforcing plate, and two side edges of each first reinforcing plate are respectively connected with the crossbeam plate and the floor panel.

[0011] First reinforcing rib lattice is formed between adjacent two first reinforcing plates, and / or first reinforcing rib lattice is formed between the first reinforcing plate and the crossbeam support plate.

[0012] Preferably, the reinforcing structure comprises second reinforcing plate.

[0013] Two ends of the second reinforcing plate are respectively connected with two first reinforcing plates, and the second reinforcing plate, the two first reinforcing plates, the cross beam plate and the floor plate surface form the air duct channel.

[0014] Two ends of the second reinforcing plate are respectively connected with a first reinforcing plate and a cross beam support plate, and the first reinforcing plate, the cross beam support plate, the cross beam plate and the floor plate surface form the air duct channel.

[0015] Preferably, the floor structure further comprises a floor longitudinal beam integrally formed with the floor plate surface and the seat cross beam.

[0016] The floor longitudinal beam and the seat cross beam are respectively arranged on two sides of the floor plate surface, and the floor longitudinal beam is arranged opposite to the first reinforcing rib lattice.

[0017] Preferably, the floor longitudinal beam comprises two longitudinal beam support plates and a longitudinal beam plate.

[0018] Two side edges of the longitudinal beam plate are respectively connected with the floor plate surface through a longitudinal beam support plate.

[0019] Two longitudinal beam support plates are arranged opposite to two first reinforcing plates, and / or two longitudinal beam support plates are arranged opposite to a first reinforcing plate and a cross beam support plate.

[0020] Preferably, the first mounting hole is arranged on the cross beam plate corresponding to the first reinforcing rib lattice, and a mounting structure is arranged on the first mounting hole.

[0021] A second mounting hole is arranged on the longitudinal beam plate, and a mounting structure is arranged on the second mounting hole.

[0022] Preferably, the mounting structure comprises a press-in rivet nut.

[0023] One end of the press-in rivet nut is provided with a riveting flange, a first side surface of the riveting flange abuts against the cross beam plate or the longitudinal beam plate, a second side surface of the riveting flange is welded to the cross beam plate or the longitudinal beam plate, and the first side surface and the second side surface of the riveting flange are two adjacent side surfaces.

[0024] Preferably, the floor structure further comprises a rocker beam integrally formed with the floor plate surface and the seat cross beam.

[0025] The rocker beam is connected with one side edge of the floor plate surface and one end of the seat cross beam.

[0026] Preferably, the rocker beam comprises a rocker support plate, an outer side absorbing beam body and an inner side absorbing beam body arranged on two sides of the rocker support plate, and a cavity reinforcing plate arranged in the inner side absorbing beam body.

[0027] The first side of the inner absorbing beam body is connected with one side of the floor panel and one end of the seat cross beam, and the second side of the inner absorbing beam body is in the same plane as the cross beam panel, and the first side and the second side of the inner absorbing beam body are two adjacent sides;

[0028] The cavity inner reinforcing plate is in the same plane as the floor panel.

[0029] The utility model embodiment further provides a floor assembly comprising two floor structures according to any one of the preceding embodiments.

[0030] The side edges of the two floor panels are connected, and the ends of the two seat cross beams are connected.

[0031] The utility model embodiment further provides a vehicle comprising the floor assembly.

[0032] In the floor structure, floor assembly and vehicle, the floor structure is provided with an air duct channel on the hollow beam body of the seat cross beam, the air duct channel can accommodate the air duct to pass through, so that the air duct does not need to be arranged on the seat cross beam, the air duct is prevented from being distorted, and installation space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will briefly introduce the drawings needed to be used in the description of the utility model embodiment. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0034] Figure 1 is a structural schematic view of a floor structure in an embodiment of the utility model;

[0035] Figure 2 is another structural schematic view of the floor structure in the embodiment of the utility model;

[0036] Figure 3 is an installation structural schematic view of a rivet nut in the embodiment of the utility model;

[0037] Figure 4 is another structural schematic view of the floor structure in the embodiment of the utility model;

[0038] Figure 5 is a three-dimensional structural schematic view of a floor assembly in an embodiment of the utility model;

[0039] Figure 6 is a sectional schematic view of the floor assembly in the embodiment of the utility model.

[0040] In the diagram: 1. Floor panel; 2. Seat crossbeam; 21. Hollowed-out beam; 211. Crossbeam plate; 212. Crossbeam support plate; 22. Air duct; 23. Reinforcing structure; 231. First reinforcing plate; 232. Second reinforcing plate; 3. Floor longitudinal beam; 31. Longitudinal beam support plate; 32. Longitudinal beam plate; 4. First mounting hole; 5. Second mounting hole; 6. Press-fit nut; 61. Riveted flange; 62. Welded structure; 7. Threshold beam; 71. Threshold support plate; 72. Outer absorption beam; 73. Inner absorption beam; 74. Internal reinforcing plate; 8. Air duct. Detailed Implementation

[0041] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] This utility model embodiment provides a floor structure, such as Figure 1 As shown, it includes a floor panel 1 and a seat beam 2; the seat beam 2 is disposed on the floor panel 1, and the seat beam 2 includes a hollow beam body 21 with a hollowed-out design and an air duct channel 22 disposed on the hollow beam body 21.

[0045] As an example, the floor structure includes a floor panel 1 and a seat crossbeam 2 arranged on the floor panel 1, the seat crossbeam 2 including a hollow beam body 21 arranged in a hollow manner. The hollow beam body 21 can include two hollow surfaces arranged opposite to each other, the two hollow surfaces being arranged opposite to each other along a first direction, and the hollow beam body 21 itself being arranged in extension along a second direction, the first direction and the second direction being two directions perpendicular or close to perpendicular to each other. The seat crossbeam 2 further includes an air duct channel 22 arranged on the hollow beam body 21, the air duct channel 22 being arranged through the two hollow surfaces for accommodating the air duct 8, so that the air duct 8 can be arranged through the beam body of the seat crossbeam 2, without needing to be arranged above the seat crossbeam 2, avoiding distortion of the air duct 8, and saving installation space.

[0046] As another example, the floor panel 1 and the seat crossbeam 2 can be an extruded aluminum structure arranged in an integrated manner. During processing of the floor structure, the floor panel 1 and the seat crossbeam 2 can be integrally extruded in the first direction. During extrusion, the size of the floor panel 1 and the seat crossbeam 2 can be adjusted by means of machining edges, improving the expandability of the floor structure to match the installation size requirements of different seats. Moreover, at least two seat crossbeams 2 can be arranged according to the number of seat rows, the at least two seat crossbeams 2 being arranged in a spaced manner in the first direction to ensure the expandability of the floor structure. By arranging the floor panel 1 and the seat crossbeam 2 in an integrated manner, the number of assembly parts can be reduced, the production and assembly complexity of the floor structure can be reduced, different seat installation size requirements can be met, and production efficiency can be improved.

[0047] In the present example, the floor structure is provided with an air duct channel on the hollow beam body of the seat crossbeam, the air duct channel 22 being capable of accommodating the air duct 8, so that the air duct 8 can pass through the seat crossbeam 2, without needing to be arranged above the seat crossbeam 2, avoiding distortion of the air duct 8, and saving installation space.

[0048] In an embodiment, as shown in Figure 2 The hollow beam body 21 includes a crossbeam plate 211 and a crossbeam support plate 212, the two ends of the crossbeam support plate 212 being respectively connected to the crossbeam plate 211 and the floor panel 1, and the crossbeam plate 211, the floor panel 1 and the crossbeam support plate 212 enclosing the air duct channel 22.

[0049] As an example, the hollow beam body 21 includes a cross beam plate 211 and a cross beam support plate 212. The cross beam plate 211 is arranged at one side of the floor surface 1 at intervals in the third direction and is arranged parallel to the floor surface 1. The third direction is a direction perpendicular to the plane where the first direction and the second direction are located. The hollow beam body 21 may include two cross beam support plates 212. The two cross beam support plates 212 are arranged at both ends of the cross beam plate 211 at intervals in the second direction. Two side edges of each cross beam support plate 212 are respectively connected to one side edge of the cross beam plate 211 and one side edge of the floor surface 1, supporting the cross beam plate 211 to form a beam structure; alternatively, the hollow beam body 21 may include one cross beam support plate 212. Two side edges of the cross beam support plate 212 are respectively connected to one side edge of the cross beam plate 211 and one side edge of the floor surface 1. When two floor structures are assembled to form a floor assembly, the cross beam plates 211 in different floor structures are connected to each other at the side edges where no cross beam support plate 212 is provided, forming an integral body, so that the cross beam support plate 212 in one floor structure and the cross beam support plate 212 in another floor structure are arranged at intervals, supporting the two cross beam plates 211 to form a beam structure. The cross beam plate 211, the cross beam support plate 212 and the floor surface 1 can enclose to form a "mouth"-shaped frame structure, and an air duct passage 22 extending in the first direction is formed on the hollow beam body 21, so that the air duct 8 can directly penetrate through the seat cross beam 2 along the first direction, without straddling above the seat cross beam 2 and without twisting the air duct 8, saving the installation space.

[0050] In an embodiment, the seat cross beam 2 further includes a strengthening structure 23 arranged in the hollow beam body 21; the strengthening structure 23 includes at least one first strengthening plate 231. Two side edges of each first strengthening plate 231 are respectively connected to the cross beam plate 211 and the floor surface 1; a first strengthening rib grid is formed between two adjacent first strengthening plates 231, and / or a first strengthening rib grid is formed between the first strengthening plate 231 and the cross beam support plate 212.

[0051] As an example, to ensure the structural strength of the seat crossbeam 2, each seat crossbeam 2 also includes a reinforcing structure 23 disposed within the hollow beam body 21, which can enhance the strength of the seat crossbeam 2. The reinforcing structure 23 disposed within the hollow beam body 21 can enhance the structural strength of the seat crossbeam 2 without affecting the one-piece molding, meeting the installation strength requirements of the seat, eliminating the need for additional reinforcing parts to increase the strength of the floor structure, thus saving additional mold opening costs and improving production efficiency. The reinforcing structure 23 includes at least one first reinforcing plate 231, at least one first reinforcing plate 231 is spaced apart in the second direction, the two sides of each first reinforcing plate 231 are respectively connected to the crossbeam plate 211 and the floor plate 1, and the extension direction of each first reinforcing plate 231 is consistent with the first direction, so that a first reinforcing rib grid with a hollow surface is formed between two first reinforcing plates 231, and / or, a first reinforcing rib grid with a hollow surface is formed between one first reinforcing plate 231 and one crossbeam support plate 212. The cross section of the first reinforcing rib grid along the first direction is a "U" shaped cross section. The first reinforcing plate 231, which is connected to the crossbeam plate 211 and the floor slab 1, forms a first reinforcing grid in the hollow beam body 21, which can form a strong support between the crossbeam plate 211 and the floor slab 1, improve the structural strength of the floor structure in the third direction, and prevent the seat crossbeam 2 from collapsing.

[0052] In one embodiment, such as Figure 2 As shown, the reinforcing structure 23 includes a second reinforcing plate 232; both ends of the second reinforcing plate 232 are respectively connected to two first reinforcing plates 231, and the second reinforcing plate 232, the two first reinforcing plates 231, the crossbeam plate 211 and the floor surface 1 enclose to form an air duct channel 22; and / or, both ends of the second reinforcing plate 232 are respectively connected to a first reinforcing plate 231 and a crossbeam support plate 212, and the first reinforcing plate 231, the crossbeam support plate 212, the crossbeam plate 211 and the floor surface 1 enclose to form an air duct channel 22.

[0053] As an example, the reinforcing structure 23 further comprises a second reinforcing plate 232, two ends of the second reinforcing plate 232 along the second direction are respectively connected with two first reinforcing plates 231, the second reinforcing plate 232, the two first reinforcing plates 231, the beam plate 211 and the floor panel 1 enclose to form the air duct passage 22; and / or, two ends of the second reinforcing plate 232 along the second direction are respectively connected with a first reinforcing plate 231 and a beam support plate 212, the first reinforcing plate 231, the beam support plate 212, the beam plate 211 and the floor panel 1 enclose to form the air duct passage 22, so that the air duct 8 can be arranged along the first direction through the seat beam 2, and the arrangement space is saved. Further, the first reinforcing plate 231, the beam support plate 212, the beam plate 211 and the floor panel 1 can also enclose to form a wire harness passage, so that the wire harness can also be arranged along the first direction through the seat beam 2, and the arrangement space is saved. In the example, the second reinforcing plate 232 can be arranged in a first reinforcing rib lattice, connected with two side plates (such as two first reinforcing plates 231, or a first reinforcing plate 231 and a beam support plate 212) of the first reinforcing rib lattice, so that the cross section of the first reinforcing rib lattice along the first direction is in the shape of a "day" character, and the structural strength of the first reinforcing rib lattice is enhanced. Alternatively, the second reinforcing plate 232 can be arranged between two adjacent first reinforcing rib lattices, or between a first reinforcing rib lattice and the beam support plate 212 of the edge, to enhance the structural strength between the two.

[0054] In the example, by arranging the second reinforcing plate 232, the structural strength of the floor structure in the second direction can be improved, the impact force in the second direction can be decomposed along the first reinforcing plate 231 and the beam support plate 212, and the impact resistance of the floor structure is enhanced.

[0055] In an embodiment, as shown in Figure 1 and Figure 2 The floor structure further comprises a floor longitudinal beam 3 integrally formed with the floor panel 1 and the seat beam 2; the floor longitudinal beam 3 and the seat beam 2 are arranged on two sides of the floor panel 1 respectively, and the floor longitudinal beam 3 is arranged opposite to the first reinforcing rib lattice.

[0056] As an example, the floor structure further comprises a floor longitudinal beam 3, the floor longitudinal beam 3, the floor panel 1 and the seat beam 2 are integrally extruded, the floor longitudinal beam 3 is arranged along the first direction, the floor longitudinal beam 3 can be arranged below the floor panel 1, and the floor longitudinal beam 3 and the seat beam 2 are arranged on two different sides of the floor panel 1 respectively, the floor longitudinal beam 3 is arranged opposite to the first reinforcing rib lattice in the third direction, so that a through force transmission path can be formed when a battery pack is subsequently installed on the floor longitudinal beam 3 and a seat is installed on the first reinforcing rib lattice corresponding beam plate 211, and the structural strength is enhanced.

[0057] In an embodiment, as shown in Figure 2As shown, the floor longitudinal beam 3 comprises two longitudinal beam support plates 31 and a longitudinal beam plate 32; two side edges of the longitudinal beam plate 32 are respectively connected with the floor plate 1 through a longitudinal beam support plate 31; the two longitudinal beam support plates 31 are respectively arranged opposite to the two first reinforcing plates 231, and / or the two longitudinal beam support plates 31 are respectively arranged opposite to a first reinforcing plate 231 and a cross beam support plate 212.

[0058] As an example, the floor longitudinal beam 3 comprises two longitudinal beam support plates 31 arranged in the second direction, and a longitudinal beam plate 32 arranged below the floor plate 1, the extending direction of the longitudinal beam plate 32 is consistent with the first direction, and two side edges of the longitudinal beam plate 32 are respectively connected with the floor plate 1 through a longitudinal beam support plate 31. The two longitudinal beam support plates 31 are respectively arranged opposite to the two first reinforcing plates 231 in the third direction, so that one longitudinal beam support plate 31 and one first reinforcing plate 231 are located in the same plane, and / or the two longitudinal beam support plates 31 are respectively arranged opposite to a first reinforcing plate 231 and a cross beam support plate 212 in the third direction, so that one longitudinal beam support plate 31 and one first reinforcing plate 231 are located in the same plane, and the other longitudinal beam support plate 31 and one cross beam support plate 212 are located in the same plane, to form a force transmission path through in the third direction, and to enhance the structural strength.

[0059] In an embodiment, as shown, Figure 2 the first reinforcing rib grid corresponds to the cross beam plate 211 provided with a first mounting hole 4, and the first mounting hole 4 is provided with a mounting structure; the longitudinal beam plate 32 is provided with a second mounting hole 5, and the second mounting hole 5 is provided with a mounting structure.

[0060] As an example, the floor structure further comprises a plurality of first mounting holes 4 arranged in the second direction on the cross beam plate 211, and the first mounting hole 4 is provided with a mounting structure for assembling a seat; the floor structure further comprises a plurality of second mounting holes 5 arranged in the first direction on the longitudinal beam plate 32, and the second mounting hole 5 is also provided with a mounting structure for assembling a battery pack. One first mounting hole 4 is arranged corresponding to one first reinforcing rib grid. In particular, one second mounting hole 5 arranged on the longitudinal beam plate 32 and one first mounting hole 4 arranged at the first reinforcing rib grid can be arranged opposite to each other in the third direction, to form a resonance, so as to concentrate the mounting stress points of the battery pack at the first reinforcing rib grid as much as possible, and maximize the supporting effect of the first reinforcing rib grid in the third direction.

[0061] In an embodiment, the mounting structure comprises a press-in nut 6, one end of the press-in nut 6 is provided with a riveting flange 61, the first side of the riveting flange 61 abuts against the cross beam plate 211 or the longitudinal beam plate 32, the second side of the riveting flange 61 is welded to the cross beam plate 211 or the longitudinal beam plate 32, and the first side and the second side of the riveting flange 61 are two adjacent sides.

[0062] As an example, as shown in Figure 3 As an example, as shown in

[0063] As an example, as shown in Figure 4 In an embodiment, as shown in

[0064] As an example, as shown in

[0065] In an embodiment, the rocker beam 7 comprises a rocker support plate 71, outer side absorbing beam bodies 72 and inner side absorbing beam bodies 73 arranged on both sides of the rocker support plate 71, and a cavity-in-strengthening plate 74 arranged in the inner side absorbing beam bodies 73; the first side of the inner side absorbing beam bodies 73 is connected with one side of the floor panel 1 and one end of the seat cross beam 2, and the second side of the inner side absorbing beam bodies 73 is in the same plane as the cross beam support plate 212, and the first side and the second side of the inner side absorbing beam bodies 73 are adjacent sides; the cavity-in-strengthening plate 74 is in the same plane as the floor panel 1.

[0066] As an example, the threshold beam 7 includes a threshold support plate 71 arranged in a vertical direction, and the threshold support plate 71 is respectively provided with an outer side absorption beam body 72 and an inner side absorption beam body 73 arranged in a first direction in a hollow manner at two sides thereof, the first side of the inner side absorption beam body 73 is connected with one side of the floor plate 1 and one end of the seat cross beam 2, in the seat cross beam 2, the cross beam support plate 212 in the hollow beam body 21 can be integrally formed and arranged with the first side of the inner side absorption beam body 73, so that the cross beam plate 211 in the hollow beam body 21 is directly connected with the first side of the inner side absorption beam body 73, and the cross beam plate 211 and the second side of the inner side absorption beam body 73 are located in the same plane, wherein the first side and the second side of the inner side absorption beam body 73 are two adjacent sides. The inner side absorption beam body 73 is further provided with a cavity inner reinforcing plate 74, the cavity inner reinforcing plate 74 is located in the same plane as the floor plate 1, and the cavity inner reinforcing plate 74 and the upper side of the inner side absorption beam body 73 can form a complete force transmission structure from the threshold beam 7 to the seat cross beam 2, thereby improving the inner side support force of the threshold beam 7 and the impact resistance of the floor structure in the second direction.

[0067] The utility model embodiment further provides a floor assembly, comprising two floor structures in the above embodiments; the side edges of the two floor plates 1 are connected, and the end portions of the two seat cross beams 2 are connected.

[0068] As an example, the floor assembly comprises at least two floor structures in the above examples, and the floor structures are assembled by two-by-two butt welding; the floor plates 1 of the floor structures are located in the same plane, the two floor plates 1 are connected two by two on one side edge where no floor longitudinal beam 3 is arranged, the seat cross beams 2 in different floor structures are arranged in correspondence along the same straight line, and the end portions of the two seat cross beams 2 are connected by welding. In the example, the air duct channel 22 arranged on the hollow beam body 21 of the floor structure can accommodate the air duct 8 to pass through the seat cross beam 2, so that the air duct 8 does not need to be arranged above the seat cross beam 2, that is, the air duct 8 does not need to be twisted, and the installation space of the air duct 8 is saved.

[0069] The utility model embodiment further provides a vehicle comprising the floor assembly in the above embodiments.

[0070] As an example, the vehicle comprises the floor assembly in the above example. In the example, the hollow beam body of the floor assembly is provided with an air duct channel, and the air duct channel 22 can accommodate the air duct 8 to pass through the seat cross beam 2, so that the air duct 8 does not need to be arranged above the seat cross beam 2, that is, the air duct 8 does not need to be twisted, and the installation space of the air duct 8 is saved.

[0071] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A floor structure, characterized in that The floor panel and the seat cross beam are provided on the floor panel, and the seat cross beam comprises a hollow beam body and an air duct channel provided on the hollow beam body. The hollow beam body comprises a cross beam plate and a cross beam support plate, and the two ends of the cross beam support plate are respectively connected with the cross beam plate and the floor panel; the cross beam plate, the floor panel and the cross beam support plate enclose the air duct channel. The seat cross beam further comprises a reinforcing structure provided in the hollow beam body.

2. The floor structure according to claim 1, characterized in that The reinforcing structure comprises at least one first reinforcing plate, and the two sides of each first reinforcing plate are respectively connected with the cross beam plate and the floor panel. First reinforcing ribs are formed between adjacent two first reinforcing plates, and / or first reinforcing ribs are formed between the first reinforcing plate and the cross beam support plate. The reinforcing structure comprises a second reinforcing plate.

3. The floor structure according to claim 2, characterized in that The two ends of the second reinforcing plate are respectively connected with two first reinforcing plates, and the second reinforcing plate, the two first reinforcing plates, the cross beam plate and the floor panel enclose the air duct channel. The two ends of the second reinforcing plate are respectively connected with a first reinforcing plate and a cross beam support plate, and the first reinforcing plate, the cross beam support plate, the cross beam plate and the floor panel enclose the air duct channel. The floor structure further comprises a floor longitudinal beam integrally formed with the floor panel and the seat cross beam.

4. The floor structure according to claim 2, characterized in that The floor longitudinal beam and the seat cross beam are respectively provided on the two sides of the floor panel, and the floor longitudinal beam is provided opposite to the first reinforcing rib. The floor longitudinal beam comprises two longitudinal beam support plates and a longitudinal beam plate.

5. The floor structure according to claim 4, characterized in that The two sides of the longitudinal beam plate are respectively connected with the floor panel through a longitudinal beam support plate. The two longitudinal beam support plates are respectively provided opposite to two first reinforcing plates, and / or the two longitudinal beam support plates are respectively provided opposite to a first reinforcing plate and a cross beam support plate. A first mounting hole is provided on the cross beam plate corresponding to the first reinforcing rib, and a mounting structure is provided on the first mounting hole.

6. The floor structure according to claim 5, characterized in that A second mounting hole is provided on the longitudinal beam plate, and a mounting structure is provided on the second mounting hole. The mounting structure comprises a press-in rivet nut.

7. The floor structure according to claim 6, characterized in that One end of the press-in rivet nut is provided with a riveting flange, the first side of the riveting flange abuts against the cross beam plate or the longitudinal beam plate, the second side of the riveting flange is welded to the cross beam plate or the longitudinal beam plate, and the first side and the second side of the riveting flange are two adjacent sides. The floor structure further comprises a rocker beam integrally formed with the floor panel and the seat cross beam.

8. The floor structure according to claim 1, characterized in that The rocker beam is connected with one side of the floor panel and one end of the seat cross beam. The rocker beam comprises a rocker support plate, an outer side absorbing beam body and an inner side absorbing beam body provided on the two sides of the rocker support plate, and the inner side absorbing beam body is provided with a cavity reinforcing plate.

9. The floor structure according to claim 8, characterized in that The first side of the inner side absorbing beam body is connected with one side of the floor panel and one end of the seat cross beam, and the second side of the inner side absorbing beam body is in the same plane as the cross beam plate, and the first side and the second side of the inner side absorbing beam body are two adjacent sides. ​ The in-cavity reinforcing plate is in the same plane as the floor panel surface.

10. A floor assembly characterized by, A floor structure comprising two floor panels according to any one of claims 1-9; The side edges of the two floor panel surfaces meet, and the end portions of the two seat crossbeams meet.

11. A vehicle characterized by comprising: A floor assembly comprising a floor panel according to claim 10.

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