Chassis structure and vehicle

Abstract

The utility model discloses a chassis structure and a vehicle, the chassis structure comprises a seat cross beam, the seat cross beam is used for installing a seat and comprises two first cross beams which are arranged at intervals in a first direction, and the first direction is the front-back direction of the chassis structure; the threshold beam extends in the first direction, is arranged on one side, in the second direction, of the seat cross beam and is connected with the two first cross beams, and the second direction is the left-right direction of the chassis structure; the first reinforcing plate is connected between the threshold beam and the two first cross beams, according to the chassis structure, the first reinforcing plate, the two first cross beams and the threshold beam are arranged to form a complete force transmission structure, the probability that the chassis structure is directly deformed and damaged can be reduced, and the service life of the chassis structure is prolonged. Therefore, the strength of the chassis structure can be effectively improved, meanwhile, the reliability of the chassis structure is improved, and a passenger compartment and a battery pack are effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a chassis structure and a vehicle. Background Technology

[0002] With the rapid development of vehicles, consumers have increasingly higher demands for vehicle reliability. In side-impact collisions, the passenger compartment is more susceptible to greater damage due to the limited Y-axis support space.

[0003] In related technologies, chassis structures, in order to improve the collision capability of the chassis structure, only consider meeting the conventional side collision requirements of regulations. Therefore, the chassis structure is simply reinforced. When the vehicle faces an impact force that exceeds the conventional side collision force, the chassis structure cannot effectively resist the impact force, thus failing to improve the reliability of the chassis structure, and consequently failing to protect the passenger compartment and battery pack. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a chassis structure that can effectively protect the passenger compartment and battery pack.

[0005] This utility model also proposes a vehicle having the above-mentioned chassis structure.

[0006] According to the first aspect of the present invention, the chassis structure includes: a seat crossbeam, which is used to install a seat and includes two first crossbeams spaced apart in a first direction, the first direction being the front-rear direction of the chassis structure; a sill beam, which extends along the first direction and is arranged on one side of the seat crossbeam in a second direction, and is connected to both first crossbeams, the second direction being the left-right direction of the chassis structure; and a first reinforcing plate, which is connected between the sill beam and the two first crossbeams.

[0007] According to the chassis structure of this utility model, by setting a first reinforcing plate, the first reinforcing plate, two first crossbeams and sill beams form a complete force transmission structure, which can reduce the probability of direct deformation damage to the chassis structure, thereby effectively improving the strength of the chassis structure. At the same time, it is also conducive to improving the reliability of the chassis structure and effectively protecting the passenger compartment and battery pack.

[0008] In some embodiments of this utility model, the chassis structure includes: a longitudinal beam, which extends along a first direction and is spaced apart from the sill beam in a second direction, and the two ends of the longitudinal beam are respectively connected to two first crossbeams.

[0009] In this embodiment, the longitudinal beam is connected to the two first crossbeams. When the vehicle is impacted and the impact force is transmitted to the two first crossbeams, the impact force will be transmitted from the two first crossbeams to the longitudinal beam. After passing through the longitudinal beam, the impact force will be redistributed. In this way, by dispersing the concentrated impact force to a larger area or more support points, the fracture or deformation caused by stress concentration in key parts is reduced, thereby reducing the damage of the impact force to the chassis structure to a certain extent, and thus improving the reliability of the chassis structure.

[0010] In some embodiments of this utility model, the first reinforcing plate is connected to the longitudinal beam.

[0011] In this embodiment, the first reinforcing plate can be screwed or welded to the longitudinal beam. When the vehicle is hit, the impact force can be transmitted to the longitudinal beam in sequence through the sill beam, the first reinforcing plate and the two first crossbeams. The impact force can also be transmitted to the longitudinal beam in sequence through the sill beam and the first reinforcing plate. This can effectively optimize the transmission path of the impact force when the vehicle is hit, thereby improving the reliability of the vehicle.

[0012] In some embodiments of this utility model, the first reinforcing plate has a first overlapping edge and a second overlapping edge formed on both sides of the second direction, the first overlapping edge being connected to the sill beam and the second overlapping edge being connected to the longitudinal beam.

[0013] In this embodiment, the first reinforcing plate is provided with a first overlapping edge and a second overlapping edge, which facilitates the overlapping connection between the first reinforcing plate and the sill beam and the longitudinal beam, thereby improving the connection efficiency between the first reinforcing plate and the sill beam and the longitudinal beam. At the same time, the first overlapping edge and the second overlapping edge can expand the operating surface, thereby facilitating the connection work between the first reinforcing plate and the sill beam and the longitudinal beam and reducing the connection difficulty.

[0014] In some embodiments of this utility model, the first overlapping edge is welded and / or screwed to the sill beam, and the second overlapping edge is welded and / or screwed to the longitudinal beam.

[0015] In this embodiment, the connection strength between the first reinforcing plate and the sill beam and longitudinal beam can be effectively improved, and the probability of fracture at the connection between the first reinforcing plate and the sill beam and longitudinal beam can be effectively reduced to a certain extent, thereby effectively improving the structural strength of the chassis structure.

[0016] In some embodiments of this utility model, the first reinforcing plate further includes: a first segment, which extends along the vertical direction of the vehicle and whose upper end is connected to a first overlapping edge; and a second segment, which has one end connected to the lower end of the first segment and the other end extending horizontally toward the longitudinal beam and connected to a second overlapping edge.

[0017] In this embodiment, a first segment and a second segment are provided to connect the first overlapping edge and the second overlapping edge, so that the first reinforcing plate forms a complete connection structure. This can improve the structural strength of the first reinforcing plate itself, and also improve the connection reliability between the first reinforcing plate and the longitudinal beam, the sill beam and the seat crossbeam.

[0018] In some embodiments of this utility model, the second segment is provided with a plurality of reinforcing ribs, which extend along the second direction and are arranged at intervals in the first direction.

[0019] In this embodiment, the reinforcing rib can enhance the structural strength of the second section. At the same time, the reinforcing rib extends in the left and right directions. When the vehicle is hit in the left and right directions, the reinforcing rib can bear the impact force transmitted from the first overlapping edge, thereby effectively increasing the force-bearing area of ​​the first reinforcing plate in the second section. This allows the impact force to be effectively dispersed, thus improving the structural strength of the chassis structure.

[0020] In some embodiments of this utility model, the second segment has third overlapping edges connected to both sides of the first direction, and the two third overlapping edges are respectively connected to the two first crossbeams.

[0021] In this embodiment, the third overlapping edge facilitates the connection between the second segment and the first crossbeam, thereby improving the connection efficiency between the first reinforcing plate and the first crossbeam. Simultaneously, the third overlapping edge expands the connection operation surface, facilitating the connection. Furthermore, the first reinforcing plate is connected to the corresponding first crossbeam via two third overlapping edges, thereby increasing the connection strength between the first reinforcing plate and the seat crossbeam, and thus effectively improving the side impact capability of the chassis structure.

[0022] In some embodiments of this utility model, the third overlapping edge is provided on the upper surface of the first crossbeam; and / or, the third overlapping edge is welded to and / or screwed to the first crossbeam.

[0023] In this embodiment, the upper surface of the first crossbeam has sufficient operating surface, such as the operator's hand can directly connect the third overlapping edge to the first crossbeam, which can further facilitate the assembly of the third overlapping edge and the first crossbeam, thereby effectively improving the connection efficiency. At the same time, it can effectively improve the connection strength between the third overlapping edge and the first crossbeam. In addition, both welding and screw connections are relatively simple, thus effectively improving the connection efficiency.

[0024] In some embodiments of this utility model, in the second direction, the overlap length between the second overlapping edge and the longitudinal beam is in the range of 20mm-30mm.

[0025] In this embodiment, the second lap edge can have sufficient connection length with the longitudinal beam, thereby meeting the strength requirements of the welded connection and the bolt connection length requirements of the threaded connection.

[0026] In some embodiments of this utility model, a raised support boss is provided on the side of the sill beam facing the seat crossbeam, and the chassis structure further includes: a cover plate, the cover plate is connected to the lower side of the two first crossbeams, and the edge of the cover plate facing the sill beam is supported on the support boss and fixedly connected to the support boss.

[0027] In this embodiment, the support boss not only provides stable support for the cover plate, but also improves the connection reliability between the cover plate and the sill beam. Furthermore, the connection between the cover plate, the sill beam, and the seat crossbeam further strengthens the overall chassis structure, thereby enhancing its reliability once again.

[0028] In some embodiments of this utility model, the chassis structure includes: a second reinforcing plate, which is connected between the sill beam, two first crossbeams and the cover plate.

[0029] In this embodiment, the second reinforcing plate can further strengthen the connection between the sill beam, the two first crossbeams and the cover plate, thereby effectively improving the structural strength of the chassis structure. At the same time, the first and second reinforcing plates work together to reasonably distribute the impact force transmitted from the sill beam to the interior of the chassis structure, thereby effectively improving the impact resistance of the chassis structure.

[0030] In some embodiments of this utility model, in the vertical direction of the chassis structure, the second reinforcing plate is disposed between the first reinforcing plate and the cover plate.

[0031] In this embodiment, the second reinforcing plate is positioned reasonably, which allows the first and second reinforcing plates to be arranged reasonably on the chassis structure, and also ensures that the first and second reinforcing plates do not interfere with each other in the vertical direction, thereby improving the rationality of the chassis structure.

[0032] In some embodiments of this utility model, the second reinforcing plate has a fourth overlapping edge and a fifth overlapping edge formed on both sides of the second direction, the fourth overlapping edge is connected to the sill beam, and the fifth overlapping edge is connected to the cover plate and the two first crossbeams.

[0033] In this embodiment, an operating surface for connecting the second reinforcing plate to the sill beam and the first crossbeam can be increased, thereby facilitating the connection between the second reinforcing plate and the sill beam and the first crossbeam, and thus improving the connection efficiency. At the same time, there is no need to set other components to connect the second reinforcing plate to the sill beam and the first crossbeam, thereby reducing the use of components and effectively reducing the cost of use.

[0034] In some embodiments of this utility model, the fourth overlapping edge is welded and / or screwed to the sill beam, and the fifth overlapping edge is welded and / or screwed to the cover plate and the first crossbeam.

[0035] In this embodiment, the connection strength between the second reinforcing plate and the sill beam can be effectively improved, and the probability of fracture at the connection between the second reinforcing plate and the sill beam can be effectively reduced to a certain extent, thereby effectively improving the structural strength of the chassis structure. At the same time, the connection strength between the second reinforcing plate and the cover plate and the first crossbeam can be effectively improved, and the probability of fracture at the connection between the second reinforcing plate and the cover plate and the first crossbeam can be effectively reduced to a certain extent, thereby effectively improving the structural strength of the chassis structure.

[0036] In some embodiments of this utility model, in the vertical direction of the chassis structure, the fifth overlapping edge is located between the cover plate and the seat crossbeam; and / or, in the second direction, the overlap length between the fifth overlapping edge and the cover plate and the first crossbeam is in the range of 40mm-50mm.

[0037] In this embodiment, the overlapping position of the fifth overlapping edge is reasonable, which can not only ensure that the fifth overlapping edge can be properly connected with the cover plate and the seat crossbeam, but also ensure that the fifth overlapping edge does not interfere with the second overlapping edge in the vertical direction, thereby improving the rationality of the second reinforcing plate setting. At the same time, it can ensure that the fifth overlapping edge has sufficient connection length with the cover plate and the first crossbeam, thereby meeting the strength requirements of welded connection and the bolt connection length requirements of bolted connection.

[0038] In some embodiments of this utility model, the second reinforcing plate includes: a middle section, which extends along the vertical direction of the chassis structure, with the upper end of the middle section connected to the fourth overlapping edge and the lower end of the middle section connected to the fifth overlapping edge.

[0039] In this embodiment, by setting an intermediate section, the fourth overlapping edge and the fifth overlapping edge can be connected into a whole, thereby forming a complete load-bearing structure for the second reinforcing plate, which can improve the structural strength of the second reinforcing plate.

[0040] The vehicle according to the second aspect of the present invention includes the chassis structure according to the first aspect of the present invention.

[0041] According to the present invention, by setting the chassis structure of the first aspect, and by setting the first reinforcing plate, the first reinforcing plate, the two first crossbeams and the sill beam form a complete force transmission structure, which can reduce the probability of direct deformation damage to the chassis structure, thereby effectively improving the strength of the chassis structure. At the same time, it is also conducive to improving the reliability of the chassis structure and effectively protecting the passenger compartment and battery pack.

[0042] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a vehicle according to an embodiment of the present utility model;

[0044] Figure 2 This is a schematic diagram of the chassis structure according to an embodiment of the present utility model from one angle;

[0045] Figure 3 This is an exploded view of the chassis structure according to an embodiment of the present utility model;

[0046] Figure 4 This is a schematic diagram of the chassis structure according to another angle of an embodiment of the present utility model;

[0047] Figure 5 It is along Figure 4 Sectional view of line AA in the middle;

[0048] Figure 6 It is along Figure 4 A cross-sectional view along the BB line.

[0049] Figure label:

[0050] 1000, vehicles;

[0051] 100. Chassis structure;

[0052] 10. Seat crossbeam; 11. First crossbeam;

[0053] 20. Threshold beam; 21. Support boss;

[0054] 30. First reinforcing plate; 31. First lap edge; 32. Second lap edge; 33. First section; 34. Second section; 341. Reinforcing rib; 342. Third lap edge;

[0055] 40. Longitudinal beam;

[0056] 50. Cover plate;

[0057] 60. Second reinforcing plate; 61. Fourth overlapping edge; 62. Fifth overlapping edge; 63. Middle section. Detailed Implementation

[0058] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the invention, are intended to cover non-exclusive inclusion.

[0060] In the description of the embodiments of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly defined.

[0061] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0062] In the description of this utility model embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0063] In the description of the embodiments of this utility model, the term "multiple" refers to two or more (including two).

[0064] In the description of the embodiments of this utility model, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0065] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0066] With the rapid development of vehicles, consumers have increasingly higher demands for vehicle reliability. In side-impact collisions, the passenger compartment is more susceptible to greater damage due to the limited Y-axis support space.

[0067] In related technologies, chassis structures, in order to improve the collision capability of the chassis structure, only consider meeting the conventional side collision requirements of regulations. Therefore, the chassis structure is simply reinforced. When the vehicle faces an impact force that exceeds the conventional side collision force, the chassis structure cannot effectively resist the impact force, thus failing to improve the reliability of the chassis structure, and consequently failing to protect the passenger compartment and battery pack.

[0068] Based on the above considerations, in order to improve the reliability and stability of the chassis structure, this utility model designs a chassis structure that connects the first reinforcing plate of the chassis structure with the two first crossbeams and the sill beam in the seat crossbeam. The first reinforcing plate, the two first crossbeams, and the sill beam form a complete force transmission structure. When the chassis structure suffers a side impact, the impact force is redistributed through the sill beam, the first reinforcing plate, and the two first crossbeams, which minimizes the impact force borne by a certain stress point of the chassis structure. This reduces the probability of direct deformation damage to the chassis structure, thereby effectively improving the strength of the chassis structure. At the same time, it also reduces the probability of problems such as the chassis structure denting directly into the vehicle interior due to weak chassis structure strength, thus improving the reliability of the chassis structure and effectively protecting the passenger compartment and battery pack.

[0069] The following is for reference. Figures 1-6 The chassis structure 100 according to a first aspect embodiment of the present invention is described. Figure 1 This is a schematic diagram of a vehicle 1000 according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the chassis structure 100 according to an embodiment of the present utility model at one angle; Figure 3 This is an exploded view of the chassis structure 100 according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the chassis structure 100 according to another angle of an embodiment of the present utility model; Figure 5 It is along Figure 4 Sectional view of line AA in the middle; Figure 6 It is along Figure 4 A cross-sectional view along the BB line.

[0070] like Figures 1-6 As shown, the chassis structure 100 according to a first aspect embodiment of the present invention includes: a seat crossbeam 10, a sill beam 20, and a first reinforcing plate 30. The seat crossbeam 10 is used to mount the seat and includes a first direction (e.g., Figure 4 Two first crossbeams 11 are spaced apart in the X direction (as shown), the first direction being the front-rear direction of the chassis structure 100; the sill beam 20 extends along the first direction and is arranged on the seat crossbeam 10 in the second direction (as shown). Figure 4 One side of the Y direction (as shown) Figure 4 The left and / or right sides of the seat crossbeam 10 shown are connected to both first crossbeams 11, and the second direction is the left and right direction of the chassis structure 100; the first reinforcing plate 30 is connected between the sill beam 20 and the two first crossbeams 11.

[0071] The seat crossbeam 10 includes two first crossbeams 11 spaced apart in the front-rear direction. The first crossbeams 11 extend in the left-right direction. The front first crossbeam 11 is the front seat crossbeam, and the rear first crossbeam 11 is the rear seat crossbeam. The two first crossbeams 11 are used to fix a row of seats in the vehicle 1000. The seat crossbeams 10 directly support the seat assembly and the weight of the occupants, ensuring that the seats are stable and do not loosen during driving. At the same time, the seat crossbeams 10, by connecting the left and right body frames (such as the sill beams 20), help to improve the overall torsional rigidity of the body and reduce bending deformation.

[0072] For example, such as Figure 4 As shown, the sill beam 20 extends in the front-to-back direction. The sill beam 20 can be connected to the left end of the seat crossbeam 10, or it can be connected to the right end of the seat crossbeam 10. There can be two sill beams 20, connected to the left and right ends of the seat crossbeam 10 respectively. In a side collision, the sill beam 20 acts as the primary energy-absorbing structure, absorbing impact energy through its own deformation, thereby preventing the chassis structure 100 from deforming and intruding into the passenger compartment.

[0073] In this embodiment, the first reinforcing plate 30 is connected to the seat crossbeam 10 and the sill beam 20, so that the first reinforcing plate 30, the two first crossbeams 11 and the sill beam 20 form a complete force transmission structure. When the chassis structure 100 suffers a side impact, the impact force is redistributed through the sill beam 20, the first reinforcing plate 30 and the two first crossbeams 11, which will minimize the impact force borne by a certain stress point of the chassis structure 100, thereby reducing the probability of direct deformation damage to the chassis structure 100, and thus effectively improving the strength of the chassis structure 100. At the same time, it can also reduce the probability of problems such as the chassis structure 100 directly denting into the vehicle 1000, thereby improving the reliability of the chassis structure 100 and effectively protecting the passenger compartment and battery pack.

[0074] Furthermore, the chassis structure 100 of this utility model can not only meet the conventional side collision requirements, but also, when the vehicle 1000 is running at high or ultra-high speed, the first reinforcing plate 30, the two first crossbeams 11 and the sill beam 20 are subjected to the force together, and can still meet the side impact resistance of the chassis structure 100, thereby effectively improving the reliability of the vehicle 1000.

[0075] According to the chassis structure 100 of this utility model embodiment, by setting a first reinforcing plate 30, the first reinforcing plate 30, two first crossbeams 11 and sill beam 20 form a complete force transmission structure, which can reduce the probability of direct deformation damage to the chassis structure 100, thereby effectively improving the strength of the chassis structure 100. At the same time, it is also conducive to improving the reliability of the chassis structure 100 and effectively protecting the passenger compartment and battery pack.

[0076] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the chassis structure 100 includes: a longitudinal beam 40, the longitudinal beam 40 being along a first direction (e.g., Figure 4 Extending in the X direction (as shown) and connecting with the sill beam 20 in the second direction (as shown) Figure 4 The longitudinal beams 40 are arranged at intervals along the Y direction (as shown), with the two ends of the longitudinal beams 40 connected to the two first transverse beams 11 respectively.

[0077] For example, such as Figure 3 and Figure 4 As shown, the longitudinal beam 40 extends in the front-to-back direction. The front end of the longitudinal beam 40 is connected to the first crossbeam 11 on the front side, and the rear end of the longitudinal beam 40 is connected to the first crossbeam 11 on the rear side. The longitudinal beam 40 and the sill beam 20 are arranged at intervals in the left-to-right direction, and the longitudinal beam 40 is located on the side of the sill beam 20 that is closer to the interior of the vehicle 1000.

[0078] In this embodiment, the longitudinal beam 40 is connected to the two first cross beams 11. When the vehicle 1000 is impacted and the impact force is transmitted to the two first cross beams 11, the impact force will be transmitted from the two first cross beams 11 to the longitudinal beam 40. After passing through the longitudinal beam 40, the impact force will be redistributed. In this way, by dispersing the concentrated impact force to a larger area or more support points, the fracture or deformation caused by stress concentration in key parts is reduced, thereby reducing the damage of the impact force to the chassis structure 100 to a certain extent, and thus improving the reliability of the chassis structure 100.

[0079] In some embodiments of this utility model, such as Figure 3 and Figure 4 As shown, the first reinforcing plate 30 is connected to the longitudinal beam 40.

[0080] For example, such as Figure 3 and Figure 5 As shown, the first reinforcing plate 30 can be screwed or welded to the longitudinal beam 40. When the vehicle 1000 is impacted, the impact force can be transmitted to the longitudinal beam 40 in sequence through the sill beam 20, the first reinforcing plate 30 and the two first crossbeams 11. The impact force can also be transmitted to the longitudinal beam 40 in sequence through the sill beam 20 and the first reinforcing plate 30.

[0081] When the vehicle 1000 is subjected to an impact, the chassis structure 100 of this embodiment can effectively optimize the transmission path of the impact force, thereby improving the reliability of the vehicle 1000.

[0082] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the first reinforcing plate 30 is in the second direction (e.g.) Figure 3 The two sides of the Y-direction shown have a first overlapping edge 31 and a second overlapping edge 32 respectively. The first overlapping edge 31 is connected to the threshold beam 20, and the second overlapping edge 32 is connected to the longitudinal beam 40.

[0083] For example, such as Figure 3 and Figure 5 As shown, a first overlapping edge 31 is formed on the left side edge of the first reinforcing plate 30. The first overlapping edge 31 extends horizontally in the left-right direction and overlaps with the upper surface of the sill beam 20. A second overlapping edge 32 is formed on the right side edge of the first reinforcing plate 30. The second overlapping edge 32 extends horizontally in the left-right direction and overlaps with the upper surface of the sill beam 20.

[0084] In this embodiment, the first reinforcing plate 30 is provided with a first overlapping edge 31 and a second overlapping edge 32, which facilitates the overlapping connection between the first reinforcing plate 30 and the sill beam 20 and the longitudinal beam 40, thereby improving the connection efficiency between the first reinforcing plate 30 and the sill beam 20 and the longitudinal beam 40. At the same time, the first overlapping edge 31 and the second overlapping edge 32 can expand the operating surface, thereby facilitating the connection work between the first reinforcing plate 30 and the sill beam 20 and the longitudinal beam 40 and reducing the connection difficulty.

[0085] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the first lap edge 31 is welded and / or bolted to the sill beam 20, and the second lap edge 32 is welded and / or bolted to the longitudinal beam 40.

[0086] For example, the first lap edge 31 can be welded to the sill beam 20, or the first lap edge 31 can be screwed to the sill beam 20. The first lap edge 31 can also be welded to the sill beam 20 and screwed to it. The second lap edge 32 can be welded to the longitudinal beam 40, or the second lap edge 32 can also be screwed to the longitudinal beam 40. The second lap edge 32 can also be welded to the longitudinal beam 40 and screwed to it.

[0087] This embodiment can effectively improve the connection strength between the first reinforcing plate 30 and the sill beam 20 and the longitudinal beam 40, and can effectively reduce the probability of fracture at the connection between the first reinforcing plate 30 and the sill beam 20 and the longitudinal beam 40 to a certain extent, thereby effectively improving the structural strength of the chassis structure 100.

[0088] It is understandable that welding connections can adopt various welding methods such as arc welding, gas welding, laser welding, resistance welding, and friction welding, while screw connections can adopt various screw connection methods such as bolt connection, screw connection, stud connection, and set screw connection.

[0089] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the first reinforcing plate 30 also includes: a first segment 33 and a second segment 34. Specifically, the first segment 33 extends along the vertical direction of the vehicle 1000 (e.g., ...). Figure 5 Extending in the Z direction (as shown), the upper end of the first segment 33 (as shown) Figure 5 The upper end of the first segment 33 shown is connected to the first overlapping edge 31; one end of the second segment 34 (as shown) Figure 5 The left end of the second segment 34 shown) and the lower end of the first segment 33 (as shown) Figure 5 The lower end of the first segment 33 shown is connected, and the other end of the second segment 34 (as shown) is connected. Figure 5 The right end of the second segment 34 shown extends horizontally toward the longitudinal beam 40, and the second segment 34 is connected to the second overlapping edge 32.

[0090] For example, such as Figure 3 and Figure 5 As shown, the first segment 33 extends vertically, and the upper end of the first segment 33 is connected to the right end of the first overlapping edge 31. The second segment 34 extends horizontally horizontally in the left-right direction, and the left end of the second segment 34 is connected to the lower end of the first segment 33. The right end of the second segment 34 is connected to the left end of the second overlapping edge 32. The first overlapping edge 31, the first segment 33, the second segment 34, and the second overlapping edge 32 form a Z-shaped connection structure.

[0091] In this embodiment, by setting the first segment 33 and the second segment 34 to connect the first overlapping edge 31 and the second overlapping edge 32, the first reinforcing plate 30 forms a complete connection structure, which can improve the structural strength of the first reinforcing plate 30 itself, and also improve the connection reliability of the first reinforcing plate 30 with the longitudinal beam 40, the sill beam 20 and the seat crossbeam 10.

[0092] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the second segment 34 is provided with multiple reinforcing ribs 341, that is, the second segment 34 can be provided with two, three, four or more reinforcing ribs 341, and the multiple reinforcing ribs 341 are arranged along the second direction (e.g., Figure 3 Extending in the Y direction (as shown) and in the first direction (such as...) Figure 3 (as shown in the X direction) arranged at intervals.

[0093] For example, such as Figure 3 and Figure 5 As shown, the second segment 34 has multiple reinforcing ribs 341 at the middle position in the front-to-back direction. The reinforcing ribs 341 extend in the left-to-right direction, and the multiple reinforcing ribs 341 are arranged at intervals in the front-to-back direction. It can be understood that the reinforcing ribs 341 can be extruded on the second segment 34, or the reinforcing ribs 341 can be individual reinforcing members connected to the second segment 34.

[0094] The reinforcing rib 341 in this embodiment can enhance the structural strength of the second section 34. At the same time, the reinforcing rib 341 extends in the left and right direction. When the vehicle 1000 is subjected to a left and right impact, the reinforcing rib 341 can bear the impact force transmitted from the first overlapping edge 31. This can effectively increase the force-bearing area of ​​the first reinforcing plate 30 on the second section 34, thereby effectively dispersing the impact force. Therefore, it is beneficial to improve the structural strength of the chassis structure 100.

[0095] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the second segment 34 is in the first direction (such as...) Figure 3Both sides of the X-direction shown are connected to a third overlapping edge 342, and the two third overlapping edges 342 are respectively connected to the two first crossbeams 11.

[0096] For example, such as Figure 3 and Figure 5 As shown, the front and rear edges of the second segment 34 are provided with a third overlapping edge 342. The third overlapping edge 342 extends horizontally. The front third overlapping edge 342 overlaps and connects with the front first crossbeam 11, and the rear third overlapping edge 342 overlaps and connects with the rear first crossbeam 11.

[0097] In this embodiment, the third overlapping edge 342 facilitates the connection between the second segment 34 and the first crossbeam 11, thereby improving the connection efficiency between the first reinforcing plate 30 and the first crossbeam 11. Simultaneously, the third overlapping edge 342 expands the connection operation surface, facilitating the connection. Furthermore, the first reinforcing plate 30 is connected to the corresponding first crossbeam 11 via two third overlapping edges 342, thereby increasing the connection strength between the first reinforcing plate 30 and the seat crossbeam 10, and thus effectively improving the side impact capability of the chassis structure 100.

[0098] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the third overlapping edge 342 is located on the upper surface of the first crossbeam 11 (e.g., Figure 3 The upper surface of the first crossbeam 11 shown.

[0099] For example, such as Figure 3 and Figure 5 As shown, the lower surface of the front third overlapping edge 342 overlaps the upper surface of the front first crossbeam 11, and the lower surface of the rear third overlapping edge 342 overlaps the upper surface of the rear first crossbeam 11.

[0100] The upper surface of the first crossbeam 11 in this embodiment has sufficient operating surface. For example, the operator's hand can directly connect the third overlapping edge 342 to the first crossbeam 11, which can further facilitate the assembly of the third overlapping edge 342 and the first crossbeam 11, thereby effectively improving the connection efficiency.

[0101] Furthermore, such as Figure 3 and Figure 5As shown, the third lap edge 342 is welded and / or screwed to the first crossbeam 11. That is, the third lap edge 342 can be welded to the first crossbeam 11, screwed to the first crossbeam 11, or a combination of both. This effectively improves the connection strength between the third lap edge 342 and the first crossbeam 11. Furthermore, both welding and screwing connections are relatively simple, thus effectively improving connection efficiency.

[0102] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, in the second direction (e.g.) Figure 5 In the Y direction shown, the overlap length between the second overlapping edge 32 and the longitudinal beam 40 is in the range of 20mm-30mm.

[0103] For example, such as Figure 3 and Figure 5 As shown, the overlap length between the second overlapping edge 32 and the longitudinal beam 40 can be 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm or 30mm.

[0104] This embodiment limits the lap length between the second lap edge 32 and the longitudinal beam 40, so that the second lap edge 32 and the longitudinal beam 40 have sufficient connection length, thereby meeting the strength requirements of welded connections and the bolt connection length requirements of bolted connections.

[0105] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the sill beam 20 has a raised support boss 21 on the side facing the seat crossbeam 10. The chassis structure 100 also includes a cover plate 50, which is connected to the lower side of the two first crossbeams 11 (e.g., Figure 5 The lower side of the first crossbeam 11 shown), and the side edge of the cover plate 50 facing the threshold beam 20 is supported on the support boss 21 and fixedly connected to the support boss 21.

[0106] For example, with Figure 5 Taking the sill beam 20 shown as an example, the right side of the sill beam 20 is provided with a support boss 21 that protrudes to the right. The cover plate 50 is connected to the lower side of the two first crossbeams 11. The cover plate 50 can be a separate vehicle floor 1000 or the top plate of the battery pack box. The left edge of the cover plate 50 is supported on the upper side of the support boss 21.

[0107] Understandably, a threshold beam 20 is also provided on the right side of the cover plate 50. A support boss 21 protruding to the left is provided on the left side of the right threshold beam 20. The right edge of the cover plate 50 is supported on the support boss 21, so that the entire cover plate 50 can be stably supported on the two support bosses 21.

[0108] In this embodiment, the cover plate 50 is connected to the support boss 21. The support boss 21 can not only provide stable support for the cover plate 50, but also improve the connection reliability between the cover plate 50 and the sill beam 20. At the same time, the cover plate 50 is connected to the sill beam 20 and the seat crossbeam 10, which can further strengthen the strength of the entire chassis structure 100, thereby further improving the reliability of the chassis structure 100.

[0109] It should be noted that, as Figure 5 As shown, the longitudinal beam 40 is located on the upper side of the cover plate 50, and the lower end of the longitudinal beam 40 is also connected to the cover plate 50. In this way, the longitudinal beam 40, the cover plate 50, the seat crossbeam 10 and the sill beam 20 form a whole, thereby maximizing the structural strength of the chassis structure 100.

[0110] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the chassis structure 100 includes a second reinforcing plate 60, which is connected between the sill beam 20, the two first crossbeams 11 and the cover plate 50.

[0111] For example, such as Figure 3 and Figure 5 As shown, the left edge of the second reinforcing plate 60 is connected to the sill beam 20, the right edge of the second reinforcing plate 60 is connected to the cover plate 50, and the front and rear edges of the second reinforcing plate 60 are respectively connected to the corresponding first crossbeam 11.

[0112] The second reinforcing plate 60 in this embodiment can further strengthen the connection between the sill beam 20, the two first crossbeams 11 and the cover plate 50, thereby effectively improving the structural strength of the chassis structure 100. At the same time, the first reinforcing plate 30 and the second reinforcing plate 60 work together to reasonably distribute the impact force transmitted from the sill beam 20 to the interior of the chassis structure 100, thereby effectively improving the impact resistance of the chassis structure 100.

[0113] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, in the vertical direction of the chassis structure 100 (e.g.) Figure 5 In the Z direction shown, the second reinforcing plate 60 is located between the first reinforcing plate 30 and the cover plate 50.

[0114] For example, such as Figure 3 and Figure 5As shown, the second reinforcing plate 60 is located on the upper side of the cover plate 50, and the left end of the second reinforcing plate 60 is located between the sill beam 20 and the first reinforcing plate 30. Therefore, the entire second reinforcing plate 60 is located between the first reinforcing plate 30 and the cover plate 50.

[0115] The second reinforcing plate 60 in this embodiment is positioned reasonably, which can improve the reasonable arrangement of the first reinforcing plate 30 and the second reinforcing plate 60 on the chassis structure 100, and also prevent the first reinforcing plate 30 and the second reinforcing plate 60 from interfering with each other in the vertical direction, thereby improving the rationality of the chassis structure 100.

[0116] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the second reinforcing plate 60 is in the second direction (e.g.) Figure 5 The two sides of the Y-direction shown have a fourth overlapping edge 61 and a fifth overlapping edge 62 respectively. The fourth overlapping edge 61 is connected to the threshold beam 20, and the fifth overlapping edge 62 is connected to the cover plate 50 and the two first crossbeams 11.

[0117] For example, such as Figure 3 and Figure 5 As shown, a fourth overlapping edge 61 is formed on the left side edge of the second reinforcing plate 60. The fourth overlapping edge 61 extends horizontally and is located between the upper surface of the supporting boss 21 and the first overlapping edge 31. A fifth overlapping edge 62 is formed on the right side edge of the second reinforcing plate 60. The fifth overlapping edge 62 extends horizontally and overlaps with the cover plate 50. The front edge of the fifth overlapping edge 62 overlaps with the front first crossbeam 11, and the rear edge of the fifth overlapping edge 62 overlaps with the rear first crossbeam 11.

[0118] The fourth overlapping edge 61 and the fifth overlapping edge 62 on the second reinforcing plate 60 in this embodiment can increase the operating surface for connecting the second reinforcing plate 60 with the sill beam 20 and the first crossbeam 11, thereby facilitating the connection between the second reinforcing plate 60 and the sill beam 20 and the first crossbeam 11, and thus improving the connection efficiency. At the same time, there is no need to set other components to connect the second reinforcing plate 60 with the sill beam 20 and the first crossbeam 11, thereby reducing the use of components and effectively reducing the cost of use.

[0119] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the fourth overlapping edge 61 is welded and / or screwed to the sill beam 20, and the fifth overlapping edge 62 is welded and / or screwed to the cover plate 50 and the first crossbeam 11.

[0120] For example, the fourth overlapping edge 61 can be welded to the sill beam 20, or the fourth overlapping edge 61 can be screwed to the sill beam 20, or the fourth overlapping edge 61 can be both welded and screwed to the sill beam 20. Similarly, the fifth overlapping edge 62 can be welded to the cover plate 50 and the first crossbeam 11, or the fifth overlapping edge 62 can be screwed to the cover plate 50 and the first crossbeam 11, or the fifth overlapping edge 62 can be both welded and screwed to the cover plate 50 and the first crossbeam 11.

[0121] The embodiments of this utility model can effectively improve the connection strength between the second reinforcing plate 60 and the sill beam 20, and can effectively reduce the probability of fracture at the connection between the second reinforcing plate 60 and the sill beam 20 to a certain extent, thereby effectively improving the structural strength of the chassis structure 100. At the same time, it can effectively improve the connection strength between the second reinforcing plate 60 and the cover plate 50 and the first crossbeam 11, and can effectively reduce the probability of fracture at the connection between the second reinforcing plate 60 and the cover plate 50 and the first crossbeam 11 to a certain extent, thereby effectively improving the structural strength of the chassis structure 100.

[0122] It is understandable that welding connections can adopt various welding methods such as arc welding, gas welding, laser welding, resistance welding, and friction welding, while screw connections can adopt various screw connection methods such as bolt connection, screw connection, stud connection, and set screw connection.

[0123] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, in the vertical direction of the chassis structure 100 (e.g.) Figure 5 In the Z direction shown, the fifth overlapping edge 62 is located between the cover plate 50 and the seat crossbeam 10.

[0124] For example, such as Figure 3 and Figure 5 As shown, the fifth overlapping edge 62 is located between the cover plate 50 and the seat crossbeam 10. When connecting the fifth overlapping edge 62 with the cover plate 50 and the seat crossbeam 10, the front edge of the fifth overlapping edge 62 is connected to the front first crossbeam 11 and the cover plate 50, and the rear edge of the fifth overlapping edge 62 is connected to the rear first crossbeam 11 and the cover plate 50.

[0125] The overlapping position of the fifth overlapping edge 62 in this embodiment is reasonable. It can not only connect the fifth overlapping edge 62 with the cover plate 50 and the seat crossbeam 10 normally, but also prevent the fifth overlapping edge 62 from interfering with the second overlapping edge 32 in the vertical direction, thereby improving the rationality of the second reinforcing plate 60 setting.

[0126] Furthermore, such as Figure 3 and Figure 5 As shown, in the second direction (e.g.) Figure 5In the Y direction (as shown), the overlap length between the fifth overlapping edge 62 and the cover plate 50 and the first crossbeam 11 is within the range of 40mm-50mm. This ensures that the fifth overlapping edge 62 has sufficient connection length with the cover plate 50 and the first crossbeam 11, thereby meeting the strength requirements of welded connections and the bolt connection length requirements of threaded connections.

[0127] For example, such as Figure 3 and Figure 5 As shown, the overlap length between the fifth overlapping edge 62 and the cover plate 50 and the first crossbeam 11 can be: 40mm, 41mm, 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm or 50mm.

[0128] In some embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the second reinforcing plate 60 includes: a middle section 63, the middle section 63 being along the vertical direction of the chassis structure 100 (e.g., Figure 5 Extending in the Z direction (as shown), the upper end of the middle segment 63 (as shown) Figure 5 The upper end of the middle section 63 shown is connected to the fourth overlapping edge 61, and the lower end of the middle section 63 (as shown) is connected to the fourth overlapping edge 61. Figure 5 The lower end of the middle section 63 shown is connected to the fifth overlapping edge 62.

[0129] For example, such as Figure 3 and Figure 5 As shown, the middle section 63 extends in the vertical direction. The upper end of the middle section 63 is connected to the fourth overlapping edge 61, and the lower end of the middle section 63 is connected to the fifth overlapping edge 62. The middle section 63, the fourth overlapping edge 61, and the fifth overlapping edge 62 form a Z-shaped structure.

[0130] In this embodiment, the second reinforcing plate 60 can connect the fourth overlapping edge 61 and the fifth overlapping edge 62 into a whole by setting the middle section 63, thereby forming a complete load-bearing structure and improving the structural strength of the second reinforcing plate 60.

[0131] The following is for reference. Figures 2-6 A vehicle 1000 according to a second aspect embodiment of the present utility model is described.

[0132] The vehicle 1000 according to an embodiment of the present invention includes a chassis structure 100 according to a first aspect embodiment of the present invention.

[0133] Other configurations and operations of the vehicle 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0134] According to the vehicle 1000 of this utility model embodiment, by setting the chassis structure 100 of the first aspect embodiment above, and by setting the first reinforcing plate 30, the first reinforcing plate 30, the two first crossbeams 11 and the sill beam 20 form a complete force transmission structure, the probability of direct deformation damage to the chassis structure 100 can be reduced, thereby effectively improving the strength of the chassis structure 100. At the same time, it is also conducive to improving the reliability of the chassis structure 100 and effectively protecting the passenger compartment and battery pack.

[0135] The following will refer to Figures 1-6 This invention describes a vehicle 1000 according to a specific embodiment of the present invention.

[0136] like Figures 1-6 As shown, the vehicle 1000 includes a chassis structure 100. The chassis structure 100 includes: a seat crossbeam 10, a sill beam 20, a first reinforcing plate 30, a longitudinal beam 40, a cover plate 50, and a second reinforcing plate 60. The seat crossbeam 10 is used to mount the seat. The seat includes two first crossbeams 11 extending in the left-right direction and spaced apart in the front-back direction. There are two sill beams 20, extending in the front-back direction and spaced apart in the left-right direction. The left sill beam 20 is connected to the left end of the seat crossbeam 10, and the right sill beam 20 is connected to the right end of the seat crossbeam 10. The left sill beam 20 has a rightward-protruding support boss 21 on its right side, and the right sill beam 20 has a leftward-protruding support boss 21 on its left side.

[0137] by Figure 5 As shown, the first reinforcing plate 30 includes: a first overlapping edge 31, a second overlapping edge 32, a first segment 33, and a second segment 34. The first segment 33 extends vertically, and its upper end is connected to the first overlapping edge 31. The first overlapping edge 31 extends horizontally and is connected to the upper surface of the sill beam 20. The left end of the second segment 34 is connected to the lower end of the first segment 33, and its right end extends horizontally toward the longitudinal beam 40. The second segment 34 is connected to the second overlapping edge 32, which extends horizontally and overlaps the upper surface of the longitudinal beam 40.

[0138] The second section 34 is provided with multiple reinforcing ribs 341. The multiple reinforcing ribs 341 extend in the left and right directions and are arranged at intervals in the front and back directions. The second section 34 has a third overlapping edge 342 connected to both sides in the front and back directions. The third overlapping edge 342 on the front side overlaps and is connected to the first crossbeam 11 on the front side, and the fourth overlapping edge 61 on the rear side overlaps and is connected to the first crossbeam 11 on the rear side.

[0139] The longitudinal beam 40 extends in the front-to-back direction and is spaced apart from the sill beam 20 in the left-to-right direction. The longitudinal beam 40 is located on the side of the sill beam 20 that is closer to the interior of the vehicle 1000. The front end of the longitudinal beam 40 is connected to the first crossbeam 11 on the front side, and the rear end of the longitudinal beam 40 is connected to the first crossbeam 11 on the rear side.

[0140] The cover plate 50 is connected to the lower side of the two first crossbeams 11, and the left edge of the cover plate 50 is supported on the support boss 21 of the left sill beam 20, and the right edge of the cover plate 50 is supported on the support boss 21 of the right sill beam 20. The edge of the cover plate 50 is fixedly connected to the support boss 21.

[0141] The second reinforcing plate 60 is connected between the sill beam 20, the two first crossbeams 11, and the cover plate 50, and is located between the first reinforcing plate 30 and the cover plate 50. The second reinforcing plate 60 includes a fourth overlapping edge 61, a fifth overlapping edge 62, and a middle section 63. The middle section 63 extends vertically in the up-down direction, and its upper end is connected to the fourth overlapping edge 61. The fourth overlapping edge 61 extends horizontally and is located between the first overlapping edge 31 and the upper surface of the sill beam 20. The lower end of the middle section 63 is connected to the fifth overlapping edge 62, and the fifth overlapping edge 62 is connected between the lower surface of the first crossbeam 11 and the cover plate 50.

[0142] When assembling the chassis structure 100, first weld the cover plate 50 to the support boss 21 of the sill beam 20, then weld the longitudinal beam 40 to the upper surface of the cover plate 50. Next, weld the fourth overlapping edge 61 of the second reinforcing plate 60 to the upper surface of the sill beam 20, then weld the fifth overlapping edge 62 to the upper surface of the cover plate 50. Finally, weld the two first crossbeams 11 to the cover plate 50, ensuring that the first crossbeams 11 are located on the upper surface of the fifth overlapping edge 62 and are welded to it. The first overlapping edge 31 is placed on the upper surface of the fourth overlapping edge 61. The first overlapping edge 31 and the fourth overlapping edge 61 are welded together, and the first overlapping edge 31, the fourth overlapping edge 61 and the sill beam 20 are screwed together. Then, the second overlapping edge 32 is placed on the upper surface of the longitudinal beam 40 and screwed together with the longitudinal beam 40. Then, the two third overlapping edges 342 are placed on the upper surface of the first crossbeam 11 and screwed together with the corresponding first crossbeam 11. At this time, the chassis structure 100 is assembled.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A chassis structure (100), characterized in that, include: A seat crossbeam (10) for mounting a seat and including two first crossbeams (11) spaced apart in a first direction, the first direction being the front-rear direction of the chassis structure (100); A sill beam (20) extends along the first direction and is arranged on one side of the seat crossbeam (10) in the second direction, and is connected to both of the first crossbeams (11), the second direction being the left-right direction of the chassis structure (100). A first reinforcing plate (30) is connected between the threshold beam (20) and the two first crossbeams (11).

2. The chassis structure (100) according to claim 1, characterized in that, include: The longitudinal beam (40) extends along the first direction and is spaced apart from the threshold beam (20) in the second direction. The two ends of the longitudinal beam (40) are respectively connected to the two first crossbeams (11).

3. The chassis structure (100) according to claim 2, characterized in that, The first reinforcing plate (30) is connected to the longitudinal beam (40).

4. The chassis structure (100) according to claim 3, characterized in that, The first reinforcing plate (30) has a first overlapping edge (31) and a second overlapping edge (32) on both sides in the second direction. The first overlapping edge (31) is connected to the threshold beam (20) and the second overlapping edge (32) is connected to the longitudinal beam (40).

5. The chassis structure (100) according to claim 4, characterized in that, The first overlapping edge (31) is welded and / or screwed to the threshold beam (20), and the second overlapping edge (32) is welded and / or screwed to the longitudinal beam (40).

6. The chassis structure (100) according to claim 4, characterized in that, The first reinforcing plate (30) also includes: The first segment (33) extends along the vertical direction of the vehicle, and the upper end of the first segment (33) is connected to the first overlapping edge (31). The second segment (34) has one end connected to the lower end of the first segment (33), and the other end of the second segment (34) extends horizontally toward the longitudinal beam (40). The second segment (34) is connected to the second overlapping edge (32).

7. The chassis structure (100) according to claim 6, characterized in that, The second segment (34) is provided with a plurality of reinforcing ribs (341), which extend along the second direction and are arranged at intervals in the first direction.

8. The chassis structure (100) according to claim 6, characterized in that, The second segment (34) has a third overlapping edge (342) on both sides of the first direction, and the two third overlapping edges (342) are respectively connected to the two first crossbeams (11).

9. The chassis structure (100) according to claim 8, characterized in that, The third overlapping edge (342) is provided on the upper surface of the first crossbeam (11); and / or, The third overlapping edge (342) is welded and / or screwed to the first crossbeam (11).

10. The chassis structure (100) according to claim 5, characterized in that, In the second direction, the overlap length between the second overlapping edge (32) and the longitudinal beam (40) is in the range of 20mm-30mm.

11. The chassis structure (100) according to claim 1, characterized in that, The sill beam (20) has a raised support boss (21) on the side facing the seat crossbeam (10). The chassis structure (100) further includes a cover plate (50), which is connected to the lower side of the two first crossbeams (11), and the side edge of the cover plate (50) facing the threshold beam (20) is supported on the support boss (21) and fixedly connected to the support boss (21).

12. The chassis structure (100) according to claim 11, characterized in that, include: The second reinforcing plate (60) is connected between the threshold beam (20), the two first crossbeams (11) and the cover plate (50).

13. The chassis structure (100) according to claim 12, characterized in that, In the vertical direction of the chassis structure (100), the second reinforcing plate (60) is disposed between the first reinforcing plate (30) and the cover plate (50).

14. The chassis structure (100) according to claim 12, characterized in that, The second reinforcing plate (60) has a fourth overlapping edge (61) and a fifth overlapping edge (62) on both sides in the second direction. The fourth overlapping edge (61) is connected to the threshold beam (20), and the fifth overlapping edge (62) is connected to the cover plate (50) and the two first crossbeams (11).

15. The chassis structure (100) according to claim 14, characterized in that, The fourth overlapping edge (61) is welded and / or screwed to the threshold beam (20), and the fifth overlapping edge (62) is welded and / or screwed to the cover plate (50) and the first crossbeam (11).

16. The chassis structure (100) according to claim 14, characterized in that, In the vertical direction of the chassis structure (100), the fifth overlapping edge (62) is located between the cover plate (50) and the seat crossbeam (10); and / or, In the second direction, the overlap length of the fifth overlapping edge (62) with the cover plate (50) and the first crossbeam (11) is in the range of 40mm-50mm.

17. The chassis structure (100) according to claim 14, characterized in that, The second reinforcing plate (60) includes: a middle section (63) that extends along the vertical direction of the chassis structure (100), the upper end of the middle section (63) being connected to the fourth overlapping edge (61), and the lower end of the middle section (63) being connected to the fifth overlapping edge (62).

18. A vehicle (1000), characterized in that, The chassis structure (100) includes any one of claims 1-17.

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