Floor structure of vehicle body and vehicle with floor structure

Abstract

The utility model relates to a floor structure of a vehicle body and a vehicle with the floor structure. The floor structure comprises a floor body; the central channel extends in the X direction of the vehicle body and is fixed in the middle of the floor main body; the first cross beam extends in the Y direction of the vehicle body and is fixedly connected with the floor main body and the central channel, and the first cross beam is provided with a connecting area which is in lap joint with the central channel; and the reinforcing plate is fixedly connected with the central channel, and at least part of the reinforcing plate and the connecting area coincide with each other relative to the vertical projection of the floor body. According to the floor structure, the complexity of the floor structure can be simplified, the cost of parts is reduced, the overall dead weight of the floor structure is reduced, the endurance mileage of a whole vehicle is increased, and the service life of the whole vehicle is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a floor structure of a vehicle body and a vehicle having the same. Background Art

[0002] Electric vehicles are vehicles that use electric motors as their power source, with energy provided by batteries or other electrical storage devices to drive the wheels. They are environmentally friendly, energy-efficient, and highly efficient, making them a future trend in the automotive industry and an ideal choice for consumers.

[0003] Currently, electric vehicle floor structures typically take two forms: a traditional steel plate stamping and welding structure or a steel-aluminum hybrid structure partially incorporating aluminum alloys. The other is an all-aluminum floor structure, primarily constructed from aluminum extrusions, aluminum stampings, and aluminum die-castings. The floor assembly is formed through processes such as SPR, FDS, MIG, bonding, and bolting. All-aluminum floor structures can significantly reduce weight, increasing the product's lightweighting and thus improving the range and service life of electric vehicles. However, all-aluminum floor structures suffer from weak mechanical strength and insufficient bending resistance.

[0004] To improve the mechanical performance of an all-aluminum floor structure, existing technologies typically enhance the mechanical strength and bending resistance of the entire floor structure by increasing the number of crossbeams and adding connection points to the battery pack. However, these methods increase the complexity and component cost of the floor structure, increase the overall weight of the floor structure, and affect the vehicle's range and service life.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Utility Model Content

[0006] To address or, to a certain extent, improve the technical problem of poor mechanical strength of existing floor structures, the present invention provides a vehicle body floor structure. The floor structure comprises: a floor body; a central tunnel extending along the X-axis of the vehicle body and fixed to the middle portion of the floor body; a first cross member extending along the Y-axis of the vehicle body and fixedly connected to the floor body and the central tunnel, respectively; and a reinforcement plate fixedly connected to the central tunnel, wherein at least a portion of the reinforcement plate and the connection region overlap with each other in a vertical projection relative to the floor body.

[0007] As those skilled in the art will appreciate, the floor structure of the vehicle body of the present invention includes a floor main body, a central tunnel, a first crossbeam, and a reinforcement plate. The floor main body provides suitable mounting areas for the central tunnel, first crossbeam, and reinforcement plate, resulting in a stable overall floor structure. The central tunnel extends generally along the X-direction (i.e., the front-to-back direction) of the vehicle body and is fixed to the center of the floor main body. The first crossbeam extends generally along the Y-direction (i.e., the left-to-right direction) of the vehicle body and is fixedly connected to the central tunnel and the floor main body, respectively. The first crossbeam has a connection area that overlaps the central tunnel. The reinforcement plate is fixedly connected to the central tunnel. In the assembled state, at least a portion of the reinforcement plate's vertical projection relative to the floor main body and the connection area's vertical projection relative to the floor main body overlap. By placing the reinforcement plate in specific locations within the floor structure, the mechanical strength and bending resistance of the connection area are enhanced, thereby improving the mechanical performance of the entire floor structure. Accordingly, the floor structure of the vehicle body of the present invention eliminates the need for excessive crossbeams and additional connection points, simplifying the complexity of the floor structure, reducing component costs, and reducing the overall weight of the floor structure, thereby improving the vehicle's range and service life.

[0008] In the preferred technical solution of the vehicle body floor structure, the reinforcement plate is fixedly connected only to the central tunnel; or the reinforcement plate is fixedly connected to both the central tunnel and the main floor panel; or the reinforcement plate is fixedly connected to the central tunnel, the main floor panel, and the first cross member. With these arrangements, the connection relationship between the reinforcement plate, the central tunnel, the main floor panel, and the first cross member can be flexibly selected, allowing the connection method to be adjusted according to actual needs.

[0009] In a preferred embodiment of the vehicle body floor structure, the reinforcement plate comprises a first plate extending along the X-direction and having a first end and a second end facing each other along the X-direction; and a second plate formed on the second end and extending along the Y-direction. At least a portion of the first plate and the connection region overlap when perpendicularly projected relative to the floor body, and the second plate and the connection region are spaced apart when perpendicularly projected relative to the floor body. This arrangement allows the reinforcement plate to assume a generally T-shaped or "convex" configuration, effectively improving the mechanical performance of the connection region.

[0010] In the preferred technical solution for the vehicle body floor structure described above, the floor structure further includes a second crossbeam extending along the Y-direction and fixedly connected to the floor body and the central tunnel, respectively. The second plate is positioned between the second crossbeam and the first crossbeam. The provision of the second crossbeam further enhances the mechanical strength and bending resistance of the entire floor structure. Furthermore, positioning the second plate between the second and first crossbeams enhances the structural strength of the region between the first and second crossbeams, thereby reducing the existing crossbeam between the two while maintaining the overall strength of the floor structure.

[0011] In the preferred technical solution for the vehicle body floor structure, fixing lugs extending along the Y direction are provided on the two lateral edges of the first plate extending along the X direction, and each fixing lug is provided with a first mounting hole for connecting the first plate to the central channel. The provision of the fixing lugs facilitates a secure and fixed connection between the first plate and the central channel.

[0012] In a preferred technical solution for the vehicle body floor structure, the second plate body is provided with fixed flanges extending in the X-direction on each of its two lateral edges extending in the X-direction, and each of the fixed flanges is provided with a second mounting hole for connecting the second plate body to the central channel. The provision of the fixed flanges allows the second plate body to be conveniently and securely fixed to the central channel.

[0013] In the preferred technical solution of the vehicle body floor structure, a third mounting hole is further provided in the main body of the first plate and / or the second plate. This arrangement further improves the reliability of the connection between the reinforcement plate and the central channel, thereby enhancing the mechanical performance of the entire floor structure.

[0014] In a preferred technical solution of the floor structure of the vehicle body, reinforcing ribs are provided on the main body of the first plate body and / or the second plate body to enhance the rigidity and mechanical strength of the reinforcing plate itself.

[0015] In the preferred technical solution of the floor structure of the vehicle body, the reinforcing ribs extend along the Y direction so as to bear and disperse the Y-direction load caused by the connection of the central channel with the first crossbeam.

[0016] In the preferred technical solution of the vehicle body floor structure, the reinforcement plate is made of press-hardened steel and / or has a yield strength greater than or equal to 2000 MPa. This arrangement ensures that the reinforcement plate itself has good mechanical properties.

[0017] In a preferred embodiment of the vehicle body floor structure, the floor structure further comprises a first cover plate, located on a side of the first cross member away from the central tunnel and fixedly connected to the first cross member, wherein at least a portion of the connection region and a vertical projection of the first cover plate relative to the floor body overlap. The provision of the first cover plate further enhances the stability and firmness of the connection between the first cross member and the central tunnel panel.

[0018] To address or, to a certain extent, improve the technical problem of poor mechanical strength of existing floor structures, the present invention provides a vehicle. The vehicle includes a vehicle body floor structure as described in any of the above. By employing any of the above vehicle body floor structures, the present vehicle ensures the mechanical strength and bending resistance of the floor structure without requiring excessive crossbeams or additional connection points. This simplifies the complexity of the floor structure, reduces component costs, reduces the overall weight of the floor structure, and improves the vehicle's range and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a front structural diagram of an embodiment of the floor structure of a vehicle body of the present invention;

[0021] Figure 2 This is a schematic diagram of the back structure of an embodiment of the floor structure of a vehicle body of the present invention;

[0022] Figure 3 It is a structural schematic diagram of an embodiment of a central channel of a floor structure of a vehicle body of the present invention;

[0023] Figure 4 It is a structural schematic diagram of an embodiment of a first crossbeam, a first cover plate and a first lap plate of a floor structure of a vehicle body of the present invention;

[0024] Figure 5 It is a structural schematic diagram of an embodiment of a reinforcing plate of a floor structure of a vehicle body according to the present invention.

[0025] List of reference numerals:

[0026] 100. Floor structure; 110. Floor body; 110a. Top surface; 110b. Bottom surface; 120. Central channel; 121. First through hole; 122. Second through hole; 123. Third through hole; 130. First crossbeam; 140. Reinforcement plate; 141. First plate body; 141a. First end portion; 141b. Second end portion; 1411. Fixing lug; 1412. First mounting hole; 142. Second plate body; 1421. Fixing flange; 1422. Second mounting hole; 1423. Third mounting hole; 1424. Reinforcement rib; 150. First cover plate; 160. First lap plate; 170. Second crossbeam; 180. Second cover plate; 190. Second lap plate. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "set," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] To address or, to a certain extent, improve the technical problem of poor mechanical strength of conventional floor structures, the present invention provides a vehicle body floor structure 100. Floor structure 100 includes: a floor body 110; a central duct 120 extending along the X-axis of the vehicle body and fixed to the center of floor body 110; a first cross member 130 extending along the Y-axis of the vehicle body and fixedly connected to floor body 110 and central duct 120, respectively; and a reinforcement plate 140 fixedly connected to central duct 120. At least a portion of reinforcement plate 140 and connection region A overlap with each other in their vertical projection relative to floor body 110.

[0031] Figure 1 This is a front structural diagram of an embodiment of the floor structure of a vehicle body of the present invention; Figure 2 1 is a schematic diagram of the back structure of an embodiment of the floor structure of the vehicle body of the present invention. Figure 1 and Figure 2 As shown, in one or more embodiments, the floor structure 100 of a vehicle body of the present invention includes components such as a floor body 110, a center tunnel 120, a first cross member 130, and a reinforcement plate 140. The floor body 110 provides a suitable mounting area for components such as the center tunnel 120, the first cross member 130, and the reinforcement plate 140, thereby ensuring a stable structure for the entire floor structure 100. The floor body 110 can be the front, center, or rear floor of the vehicle body. As the main component of the floor structure 100, the floor body 110 supports the weight of the passenger compartment and provides a comfortable riding environment for passengers. The floor body 110 can be integrally formed from an aluminum alloy through a stamping process, resulting in a lightweight, excellent mechanical properties, and low manufacturing costs. In the event of a vehicle collision, the floor body 110 can withstand a certain amount of impact force and distribute it to other vehicle body components. Through appropriate structural design and material selection, the floor body 110 can effectively absorb and disperse collision energy, thereby protecting the safety of passengers.

[0032] based on Figure 1 and Figure 2 In the orientation shown, the X direction of the vehicle body is the front-to-back direction, the Y direction of the vehicle body is the left-to-right direction, and the Z direction of the vehicle body is the up-down direction (i.e., the direction perpendicular to the paper). The floor body 110 has a top surface 110a and a bottom surface 110b that are opposite to each other along the Z direction of the vehicle body. In the assembled state, the top surface 110a of the floor body 110 (as shown in FIG. Figure 1 ) is directed upward, and the bottom surface 110b of the floor main body 110 (as shown Figure 2 shown) facing downward.

[0033] like Figure 1 and Figure 2As shown, the central duct 120 extends generally along the X-axis of the vehicle body and is fixed to the center of the floor panel 110. In one or more embodiments, a through-hole (not shown) is provided in the center of the floor panel 110 to allow the main body of the central duct 120 to pass therethrough. The flanges on either side of the central duct 120 abut against and are fixed to the bottom surface 110b of the floor panel 110. Alternatively, the flanges of the central duct 120 may abut against and be fixed directly to the top surface 110a of the floor panel 110. The fixing method between the central duct 120 and the floor panel 110 may include, but is not limited to, SPR (self-piercing riveting), FDS (flow drill screw), MIG (metal inert gas welding), bonding, bolting, etc. The central duct 120 may be made of steel or other suitable metal materials. The center tunnel 120 is located roughly in the center of the floor structure 100. It connects the front and rear sections of the vehicle and provides additional structural support. It also houses components such as seats, seatbelts, and wiring harnesses. In a collision, the center tunnel 120 absorbs and disperses lateral impact forces, minimizing deformation and collapse of the passenger compartment. It also serves as a path for transferring collision energy, directing the impact force to other parts of the vehicle body for dissipation.

[0034] Figure 3 Schematic diagram of the structure of the central channel of the floor structure of the vehicle body of the present invention. Figure 3As shown, in one or more embodiments, a plurality of first through holes 121, second through holes 122, and third through holes 123 are provided at the rear portion of the central channel 120, spaced apart from one another, to form a fixed connection with the reinforcement plate 140. Specifically, the four first through holes 121 are arranged approximately symmetrically on the left and right sides of the central channel 120. That is, two first through holes 121 are arranged on the left side of the central channel 120, while the other two first through holes 121 are symmetrically arranged on the right side of the central channel 120. In the assembled state, each first through hole 121 can be aligned with a corresponding first mounting hole 1412 on the reinforcement plate 140, making it convenient to form a fixed connection between the reinforcement plate 140 and the central channel 120 using suitable mounting members (e.g., bolts). Furthermore, the four second through holes 122 are also arranged approximately symmetrically on the left and right sides of the central channel 120. That is, two second through holes 122 are arranged on the left side of the central channel 120, while the other two second through holes 122 are symmetrically arranged on the right side of the central channel 120. In addition, these four second through holes 122 are all located in front of the first through hole 121. In the assembled state, each second through hole 122 can be aligned with a corresponding second mounting hole 1422 on the reinforcing plate 140, so that the reinforcing plate 140 and the central channel 120 can be easily fixedly connected by a suitable mounting member (such as a bolt). Furthermore, two third through holes 123 are arranged in the middle of the central channel 120 and are spaced apart from each other in the front-to-back direction. In the assembled state, each third through hole 123 can be aligned with a corresponding third mounting hole 1423 on the reinforcing plate 140, so that the reinforcing plate 140 and the central channel 120 can be easily fixedly connected by a suitable mounting member (such as a bolt). It should be noted that the number and arrangement positions of the first through holes 121 , the second through holes 122 and the third through holes 123 may also be adjusted according to actual needs, as long as the reinforcing plate 140 can be firmly and stably fixed on the central channel 120 .

[0035] Figure 4 Schematic diagram of the structure of the first crossbeam, first cover plate and first lap plate of the floor structure of the vehicle body of the present invention. Figure 1 、 Figure 2 and Figure 4 As shown, the first cross member 130 extends substantially in the Y direction of the vehicle body and is fixedly connected to the central tunnel 120 and the floor main body 110. In the assembled state, the first cross member 130 is located at the rear of the central tunnel 120 and on the side of the central tunnel 120 away from the floor main body 110 (i.e., on the upper side of the central tunnel 120). The first cross member 130 has a connection area A that overlaps with the central tunnel 120, i.e. Figure 1 、 Figure 2 and Figure 4The position is indicated by the red dashed line. The first cross member 130 can be made of steel or other suitable metal materials. The first cross member 130, the center tunnel 120, and the floor panel 110 can be secured using, but not limited to, SPR, FDS, MIG, bonding, or bolting. As a key load-bearing component of the floor panel 100, the first cross member 130 distributes the load of the floor panel 110 to both sides of the vehicle body, improving the overall rigidity of the floor panel 100 and enhancing the vehicle's roll resistance.

[0036] like Figure 1 and Figure 4 As shown, in one or more embodiments, the floor structure 100 of the present invention further includes a first cover plate 150 located on a side of the first beam 130 away from the central channel 120 (i.e., located on the upper side of the first beam 130) and fixedly connected to the first beam 130. In the assembled state, at least part of the connection area A and the vertical projection of the first cover plate 150 relative to the floor body 110 overlap with each other. The provision of the first cover plate 150 can ensure the stability and firmness of the connection between the first beam 130 and the central channel 120. The first cover plate 150 can be made of steel or other suitable metal materials. The fixing method between the first cover plate 150 and the first beam 130 can be, but is not limited to, SPR, FDS, MIG, bonding, bolt connection, etc.

[0037] like Figure 1 and Figure 4 As shown, in one or more embodiments, the floor structure 100 of the present invention further includes first lap plates 160 located on the left and right sides of the first crossbeam 130, respectively. The first lap plates 160 can be made of steel or other suitable metal materials. The fixing method between the first lap plates 160 and the first crossbeam 130 can be, but is not limited to, SPR, FDS, MIG, bonding, bolt connection, etc. In the assembled state, the first lap plates 160 can be connected to the floor body 110 and the vehicle's rocker structure, respectively, to provide additional support and fixing points. In addition, the first lap plates 160 can also be used to install components such as door hinges and door locks. When the vehicle collides, the first lap plates 160 can absorb and disperse the impact force from the side, protecting the rocker structure and the floor body 110 from damage. At the same time, it can also serve as one of the paths for transmitting collision energy, guiding the impact force to other parts of the vehicle body for dispersion.

[0038] like Figure 2As shown, in one or more embodiments, the reinforcement plate 140 abuts against and is fixed to the flanges on both sides of the central channel 120. Alternatively, the reinforcement plate 140 is simultaneously fixedly connected to the central channel 120 and the floor panel 110. Alternatively, the reinforcement plate 140 is simultaneously fixedly connected to the central channel 120, the floor panel 110, and the first cross member 130. In one or more embodiments, the reinforcement plate 140 is made of press-hardened steel, which has excellent mechanical properties. In one or more embodiments, the yield strength of the reinforcement plate 140 is greater than or equal to 2000 MPa to improve the bending resistance of the entire floor structure 100. The specific dimensions of the reinforcement plate 140 can be adjusted according to actual needs. For example, the thickness of the reinforcement plate 140 can be 2 mm. In the assembled state, at least a portion of the reinforcement plate 140 perpendicularly projected relative to the floor panel 110 overlaps with the perpendicular projection of the connection area A between the first cross member 130 and the central channel 120 relative to the floor panel 110. By installing reinforcement plates 140 in specific areas of the floor structure 100, the mechanical strength and bending resistance of the connection area A can be enhanced, thereby improving the mechanical performance of the entire floor structure 100. This eliminates the need for excessive crossbeams and additional connection points, simplifying the complexity of the floor structure 100, reducing component costs, and reducing the overall weight of the floor structure 100, thereby increasing the vehicle's range and service life.

[0039] Figure 5 Schematic diagram of the structure of the embodiment of the reinforcing plate of the floor structure of the vehicle body of the present invention. Figure 5 As shown, in one or more embodiments, the reinforcing plate 140 includes a first plate body 141 and a second plate body 142 connected to each other. The first plate body 141 extends approximately along the X direction, while the second plate body 142 extends approximately along the Y direction. Specifically, the first plate body 141 has a substantially rectangular shape and extends in the front-to-back direction; the second plate body 142 also has a substantially rectangular shape and extends in the left-to-right direction. The first plate body 141 has a first end 141a and a second end 141b that are opposite to each other along the X direction. Based on Figure 1 and Figure 2In the illustrated orientation, in the assembled state, the first end 141a is the rear portion, while the second end 141b is the front portion. The second plate 142 is formed on the second end 141b of the first plate 141. This arrangement gives the entire reinforcement plate 140 a roughly T-shaped or "convex" structure, effectively improving the mechanical performance of the connection area A. In the assembled state, at least a portion of the first plate 141's vertical projection relative to the floor structure 110 overlaps with the vertical projection of the connection area A relative to the floor structure 110, while the second plate 142's vertical projection relative to the floor structure 110 is spaced apart from the vertical projection of the connection area A relative to the floor structure 110. This not only enhances the mechanical strength and bending resistance of the connection area A through the first plate 141, but also further strengthens the mechanical performance of the entire floor structure 110 through the second plate 141.

[0040] Continue to see Figure 5 In one or more embodiments, two fixing lugs 1411 extending along the Y direction are respectively provided on the two lateral edges of the first plate 141 extending along the X direction. That is, two fixing lugs 1411 extending to the left are provided on the left edge of the first plate 141, and these two fixing lugs 1411 are spaced apart from each other in the front-to-back direction. Correspondingly, two fixing lugs 1411 extending to the right are provided on the right edge of the first plate 141, and these two fixing lugs 1411 are also spaced apart from each other in the front-to-back direction. Preferably, the two fixing lugs 1411 on the left edge of the first plate 141 and the two fixing lugs 1411 on the right edge are arranged bilaterally symmetrically. Each fixing lug 1411 is provided with a first mounting hole 1412. In the assembled state, each first mounting hole 1412 can be aligned with a corresponding first through hole 121 on the central channel 120, so that the first plate 141 and the central channel 120 can be conveniently fixedly connected by suitable mounting parts (such as bolts).

[0041] Continue to see Figure 5 In one or more embodiments, a fixed flange 1421 extending along the X-direction is provided on each of the two lateral edges of the second plate 142 extending along the X-direction. That is, a fixed flange 1421 extending along the front-to-back direction is provided on the left edge of the second plate 142. Correspondingly, a fixed flange 1421 extending along the front-to-back direction is provided on the right edge of the second plate 142. Two second mounting holes 1422 extending along the front-to-back direction are provided on each fixed flange 1421. In the assembled state, each second mounting hole 1422 can be aligned with a corresponding second through hole 122 on the central channel 120, so that the second plate 142 and the central channel 120 can be conveniently fixedly connected by suitable mounting parts (such as bolts).

[0042] Continue to see Figure 5 In one or more embodiments, a third mounting hole 1423 is provided on the main body of the first plate 141. Specifically, the third mounting hole 1423 is located between the left and right fixing lugs 1411 near the second end 141b. In the assembled state, the third mounting hole 1423 can align with a corresponding third through-hole 123 in the central channel 120, thereby improving the securement and stability of the connection between the first plate 141 and the central channel 120 through the use of suitable mounting members (e.g., bolts).

[0043] Continue to see Figure 5 In one or more embodiments, a third mounting hole 1423 is provided on the main body of the second plate 142. Specifically, the third mounting hole 1423 is located between the left and right second mounting holes 1422, which are located away from the first plate 141. In the assembled state, the third mounting hole 1423 can be aligned with a corresponding third through-hole 123 in the central channel 120, thereby improving the securement and stability of the connection between the second plate 142 and the central channel 120 through the use of suitable mounting members (e.g., bolts).

[0044] It should be pointed out that the number and arrangement positions of the first mounting holes 1412 , the second mounting holes 1422 and the third mounting holes 1423 can also be adjusted according to actual needs, as long as the reinforcement plate 140 can be stably and firmly fixed on the central channel 120 .

[0045] Continue to see Figure 5 In one or more embodiments, the main bodies of the first and second plates 141, 142 are further provided with a plurality of spaced-apart reinforcing ribs 1424. The provision of the reinforcing ribs 1424 enhances the rigidity and mechanical strength of the reinforcing plate 140. Specifically, two spaced-apart ribs 1424 are provided on the main body of the first plate 141; or three spaced-apart ribs 1424 are provided on the main body of the first plate 141. Alternatively, the number and placement of the reinforcing ribs 1424 can be adjusted according to actual needs. For example, the reinforcing ribs 1424 may be provided only on the first plate 141, or only on the second plate 142. Alternatively, the number of reinforcing ribs 1424 may be greater or less than two, such as one or three, on the first plate 141; or the number of reinforcing ribs 1424 may be greater or less than three, such as two or four, on the second plate 142. In one or more embodiments, each reinforcing rib 1424 extends generally along the Y-direction. That is, each reinforcing rib 1424 extends generally along the left-right direction, enabling the reinforcing plate 140 to effectively withstand and distribute lateral loads. Alternatively, the orientation of the reinforcing ribs 1424 may be adjusted based on actual needs.

[0046] Continue to see Figure 1 In one or more embodiments, the floor structure 100 of the present invention further includes a second crossbeam 170 extending generally along the Y-direction of the vehicle body and located in front of the first crossbeam 130. That is, the first end 141a of the first plate 141 is away from the second crossbeam 130, while the second end 141b is close to the second crossbeam 130. In the assembled state, the second plate 142 of the reinforcement plate 140 is located between the first crossbeam 150 and the second crossbeam 170. The second crossbeam 170 can be made of steel or other suitable metal materials. The second crossbeam 170 is fixedly connected to the central channel 120 and the floor body 110 respectively. The fixing method can be, but is not limited to, SPR, FDS, MIG, bonding, bolt connection, etc. The provision of the second crossbeam 170 can further improve the overall rigidity of the floor structure 100 and enhance the vehicle's anti-roll capability.

[0047] Continue to see Figure 1 In one or more embodiments, the floor structure 100 of the present invention further includes a second cover plate 180 located on a side of the second crossbeam 170 away from the central channel 120 (i.e., located above the second crossbeam 170) and fixedly connected to the second crossbeam 170. The provision of the second cover plate 180 ensures the stability and firmness of the connection between the second crossbeam 170 and the central channel 120. The second cover plate 180 can be made of steel or other suitable metal materials. The fixing method between the second cover plate 180 and the second crossbeam 170 can be, but is not limited to, SPR, FDS, MIG, bonding, bolting, etc.

[0048] Continue to see Figure 1 and Figure 2 In one or more embodiments, the floor structure 100 of the present invention further includes a second lap plate 190 located on the left and right sides of the second cross beam 170. The second lap plate 190 can be made of steel or other suitable metal materials. The fixing method between the second lap plate 190 and the second cross beam 170 can be, but is not limited to, SPR, FDS, MIG, bonding, bolt connection, etc. In the assembled state, the second lap plate 190 can be connected to the floor body 110 and the vehicle's rocker structure respectively to provide additional support and fixing points. In addition, the second lap plate 190 can also be used to install components such as door hinges and door locks. When the vehicle collides, the second lap plate 190 can absorb and disperse the impact force from the side, protecting the rocker structure and the floor body 110 from damage. At the same time, it can also serve as one of the paths for transmitting collision energy, guiding the impact force to other parts of the vehicle body for dispersion.

[0049] In one or more embodiments, the present invention further provides a vehicle (not shown in the figures), which includes the vehicle body floor structure 100 described in any one of the above embodiments.

[0050] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A floor structure of a vehicle body, characterized in that: The floor structure comprises: Floor body; a central channel extending along the X-direction of the vehicle body and fixed to the middle portion of the floor main body; a first cross member extending along the Y direction of the vehicle body and fixedly connected to the floor main body and the central channel, respectively, and having a connection area overlapping the central channel; and A reinforcing plate is fixedly connected to the central channel, wherein at least a portion of the reinforcing plate and the connecting area are overlapped in vertical projection relative to the floor main body.

2. The floor structure of a vehicle body according to claim 1, characterized in that: The reinforcing plate is only fixedly connected to the central channel; or The reinforcing plate is fixedly connected to the central channel and the floor main body at the same time; or The reinforcement plate is fixedly connected to the central channel, the floor main body and the first crossbeam at the same time.

3. The vehicle body floor structure according to claim 1 or 2, characterized in that: The reinforcing plate comprises: a first plate extending along the X-direction and having a first end and a second end opposite to each other along the X-direction; and a second plate formed on the second end portion and extending along the Y direction, Wherein, at least a portion of the first plate and the connecting area overlap with each other in a vertical projection relative to the main floor body, and the second plate and the connecting area are spaced apart from each other in a vertical projection relative to the main floor body.

4. The vehicle body floor structure according to claim 3, wherein: Two lateral edges of the first plate extending along the X direction are respectively provided with fixing lugs extending along the Y direction, and each of the fixing lugs is provided with a first mounting hole for connecting the first plate to the central channel; and / or Fixed flanges extending along the X direction are respectively provided on the two lateral edges of the second plate body extending along the X direction, and a second mounting hole for connecting the second plate body with the central channel is opened on each of the fixed flanges.

5. The floor structure of a vehicle body according to claim 3, characterized in that: The floor structure further comprises: A second crossbeam, the second crossbeam extending along the Y direction and being fixedly connected to the floor body and the central channel respectively; Wherein, the second plate is located between the second crossbeam and the first crossbeam.

6. The vehicle body floor structure according to claim 3, wherein: A third mounting hole is further provided on the main body of the first plate and / or the second plate; and / or Reinforcing ribs are provided on the main body of the first plate body and / or the second plate body.

7. The vehicle body floor structure according to claim 6, wherein: The reinforcing ribs extend along the Y direction.

8. The floor structure of a vehicle body according to claim 1, wherein: The reinforcing plate is made of press-hardened steel; and / or The yield strength of the reinforcing plate is greater than or equal to 2000 MPa.

9. The floor structure of a vehicle body according to claim 1, wherein: The floor structure further comprises: A first cover plate is located on a side of the first crossbeam away from the central channel and is fixedly connected to the first crossbeam, wherein at least a portion of the connection area and a vertical projection of the first cover plate relative to the floor body coincide with each other.

10. A vehicle, characterized in that: The vehicle comprises the floor structure of the vehicle body according to any one of claims 1-9.

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