Vehicle body and vehicle

Abstract

The utility model discloses a vehicle body and a vehicle, and relates to the technical field of vehicles. The vehicle body comprises a threshold assembly and a lifting reinforcing plate. The doorsill assembly extends in the front-back direction and comprises a doorsill bottom wall and a doorsill energy absorption cavity located above the doorsill bottom wall. At least part of the lifting reinforcing plate is a lifting main plate, the lifting main plate is installed on the bottom face of the doorsill bottom wall, and the yield strength of the lifting reinforcing plate is at least 300 MPA. According to the automobile body provided by the embodiment of the utility model, on the premise of ensuring the structural strength and safety during the automobile lifting operation, the production cost can be successfully reduced by avoiding the additional structural change of parts such as the doorsill beam and the like.

Description

Technical Field

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

[0002] With the development of the automotive industry, the demand for after-sales maintenance and final assembly is growing. To meet these demands, the design of vehicle bodies often requires the placement of lifting points. The traditional approach is to utilize the existing body structure to achieve vehicle lifting, but this approach has certain limitations. For example, the lifting points of most models are based on the existing body structure, which limits the placement of lifting locations. Furthermore, to meet the performance requirements of the lifting points, additional reinforcements are often required around the lifting points, which not only increases the cost of the parts but also complicates the welding process. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, a first aspect of the present invention is to provide a vehicle body that, while ensuring structural strength and safety during vehicle lifting operations, successfully reduces production costs by avoiding additional structural modifications to components such as the door sill beam.

[0004] A second aspect of the present invention aims to provide a vehicle.

[0005] According to an embodiment of the first aspect of the present invention, a vehicle body includes a rocker assembly and a lift reinforcement plate. The rocker assembly extends in a front-to-rear direction and includes a rocker bottom wall and a rocker energy-absorbing cavity located above the rocker bottom wall. At least a portion of the lift reinforcement plate comprises a lift main plate, which is mounted on the bottom surface of the rocker bottom wall. The lift reinforcement plate has a yield strength of at least 300 MPa.

[0006] In the vehicle body of the present invention, a lift reinforcement plate is installed on the bottom wall of the sill below the sill assembly, providing support during vehicle body lifting. The installation of a main lift plate on the lift reinforcement plate ensures uniform force distribution during lifting, preventing damage to the vehicle body structure caused by stress concentration. Furthermore, by ensuring the lift reinforcement plate material has a yield strength of at least 300 MPa, the support strength and stability of the lift reinforcement plate are enhanced, ensuring safe lifting operations.

[0007] To summarize, according to the vehicle body of some embodiments of the present invention, the threshold assembly further includes: threshold side walls and a lower flange connected to the lateral sides of the threshold bottom wall, the threshold side walls and the lower flange extending upward and downward relative to the threshold bottom wall respectively; the lifting reinforcement plate includes a reinforcement flange provided on at least one side of the lifting main plate, the reinforcement flange extending along the front and rear direction of the vehicle body, and the reinforcement flange connected to at least one of the threshold side walls and the lower flange.

[0008] In some optional embodiments, the reinforcing flanges are formed on both lateral sides of the lifting main plate, and the reinforcing flanges on both sides are formed integrally with the lifting reinforcing plate by stamping.

[0009] In some optional embodiments, the reinforcing flange is provided with reinforcing ribs.

[0010] Optionally, the reinforcing rib is formed on the reinforcing flange by integral stamping, and there are multiple reinforcing ribs, which are spaced apart along the front-to-rear direction of the vehicle body.

[0011] According to the vehicle body of some embodiments of the present invention, the lifting reinforcement plate is connected to the door sill assembly by screwing or welding.

[0012] In some optional embodiments, a first connecting hole is provided on the lifting main board, and a corresponding second connecting hole is provided on the bottom wall of the threshold, for respectively passing bolts; and an upwardly protruding sinking platform is formed on the lifting main board at the portion surrounding the first connecting hole.

[0013] Optionally, the first connection hole is provided adjacent to one lateral side of the lifting main board, and the lifting main board is further provided with a positioning hole adjacent to the other side; the bottom wall of the door sill is provided with a positioning protrusion that fits in the positioning hole.

[0014] According to the vehicle body of some embodiments of the present invention, the lifting main board is arranged parallel to the horizontal plane, or the lifting main board is arranged to extend upwardly and tilted away from the lower flange, and the angle between the lifting main board and the horizontal plane is less than or equal to 10 degrees.

[0015] The vehicle according to the embodiment of the second aspect of the present invention includes the vehicle body according to the embodiment of the first aspect of the present invention.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 A schematic structural diagram of a vehicle body according to some embodiments of the present invention;

[0019] Figure 2 Schematic diagram of the installation of the lifting reinforcement plate and the door sill assembly in some embodiments of the present invention;

[0020] Figure 3 This is another structural schematic diagram of the vehicle body of some embodiments of the present utility model.

[0021] Reference numerals:

[0022] Body 100,

[0023] Door sill assembly 10, door sill bottom wall 11, second connecting hole 111, door sill energy absorbing cavity 13, door sill side wall 14, lower flange 15,

[0024] Lifting reinforcement plate 30 , lifting main plate 32 , first connection hole 321 , positioning hole 322 , sinking platform 323 , and reinforcing flange 34 . DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation and be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and 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.

[0028] Reference below Figure 1 - Figure 3 A vehicle body 100 according to an embodiment of the first aspect of the present invention will be described.

[0029] like Figure 1 As shown, a vehicle body 100 according to an embodiment of the present invention includes a rocker assembly 10 and a lifting reinforcement plate 30 .

[0030] The rocker assembly 10 supports the vehicle body 100 , while the lifting reinforcement plate 30 serves as a structural auxiliary component of the rocker assembly 10 , and its main function is to provide additional support for the rocker assembly 10 .

[0031] Especially when a vehicle needs to be lifted, it is worth noting that when a vehicle requires repair, maintenance, or other chassis work, it is often necessary to lift the vehicle body 100 with the aid of a lifting tool such as a jack. When using a jack or other lifting tool to lift a vehicle, these lifting tools generally require a strong and stable support point. Without the lifting reinforcement plate 30, directly acting on the door sill assembly 10 may result in uneven pressure distribution on the structure. Prolonged or improper lifting operations may even damage the original structure of the door sill, affecting the overall rigidity and safety of the vehicle.

[0032] Therefore, the vehicle body 100 of this embodiment of the present invention, by providing the lift reinforcement plate 30, provides a support surface specifically designed for lifting operations. This support surface not only withstands the pressure applied by the lifting tool but also effectively distributes the pressure over a wider area of ​​the rocker assembly 10, thereby reducing the risk of single-point stress. This effectively protects the structural integrity of the rocker assembly 10 even during operations requiring frequent vehicle lifting, such as loading and unloading heavy objects, chassis repairs, or tire changes.

[0033] Combine Figure 1 - Figure 3 The sill assembly 10 extends in the front-to-rear direction and includes a sill bottom wall 11 and a sill energy-absorbing cavity 13 located above the sill bottom wall 11. At least a portion of the lift reinforcement plate 30 comprises a lift main plate 32, which is mounted on the bottom surface of the sill bottom wall 11. The lift reinforcement plate 30 has a yield strength of at least 300 MPa.

[0034] Specifically, the threshold bottom wall 11 is a part of the structure of the threshold assembly 10 . It is located at the bottom of the threshold assembly 10 and plays a major role in bearing the load.

[0035] The door sill energy absorbing cavity 13 is located above the door sill bottom wall 11 and is a cavity structure. This cavity structure can absorb a large amount of collision energy when the vehicle collides, thereby protecting the safety of passengers.

[0036] The lifting reinforcement plate 30 is used to enhance the strength and rigidity of the vehicle body 100 during the lifting process.

[0037] At least a portion of the lift reinforcement plate 30 is a lift main plate 32, which is the main load-bearing portion of the lift reinforcement plate 30. The lift main plate 32 is mounted on the bottom surface of the sill bottom wall 11. When a jack or other lifting tool is needed to lift the vehicle, the lifting tool can directly abut against the lift main plate 32 below the sill bottom wall 11.

[0038] First, by setting a lifting main plate 32 under the threshold bottom wall 11, the lifting support point can be transferred from under the threshold bottom wall 11 to the lifting main plate 32, avoiding direct pressure on the threshold assembly 10, thereby protecting the original structure and function of the threshold assembly 10.

[0039] Secondly, the lift main plate 32 and the threshold bottom wall 11 are connected in a surface-contact manner. This surface-contact method provides a large contact area, thus better distributing pressure and preventing structural damage caused by excessive localized pressure. Furthermore, surface contact improves the stability of the connection between the lift main plate 32 and the threshold bottom wall 11.

[0040] Furthermore, the lifting main board 32 is a plate-type structure, which does not occupy a large volume and has little effect on the appearance of the vehicle body 100. At the same time, there is no need to make a separate mold for the door sill assembly 10, saving mold making costs.

[0041] The lifting reinforcement plate 30 is made of a high-strength material with a yield strength of at least 300 MPA.

[0042] It should be noted that yield strength refers to the stress at which a material begins to deform plastically when subjected to an external force. The higher the yield strength, the less likely a material will permanently deform when subjected to external forces.

[0043] The lift reinforcement plate 30 has a yield strength of at least 300 MPa, meaning it maintains excellent dimensional stability and load-bearing capacity even when subjected to pressures exceeding 300 MPa. This high strength allows the lift reinforcement plate 30 to effectively distribute and withstand the pressure from the lifting tool during the lifting process, thereby reducing concentrated stress on the rocker bottom wall 11.

[0044] Furthermore, the use of a high-strength lifting reinforcement plate 30 with a yield strength of at least 300 MPa not only significantly enhances the load capacity and stability of the lifting point, but also effectively reduces the need for additional structural reinforcement of the sill bottom wall 11 and its surrounding areas, and in some cases, can even completely eliminate such reinforcement measures. Therefore, while ensuring structural strength and safety during vehicle lifting operations, the present invention reduces production costs and simplifies the production process by avoiding additional structural modifications to components such as the sill beam.

[0045] According to some embodiments of the present invention, the vehicle body 100 is combined with Figure 2 The threshold assembly 10 further includes: threshold side walls 14 and lower flanges 15 connected to the lateral sides of the threshold bottom wall 11. The threshold side walls 14 and lower flanges 15 are respectively extended upward and downward relative to the threshold bottom wall 11.

[0046] The sill sidewalls 14 are vertical or nearly vertical walls connected to the sill bottom wall 11 on both sides. They extend upward relative to the sill bottom wall 11 and form the two side boundaries of the sill assembly 10. The sill sidewalls 14 not only enhance the overall structural strength of the sill assembly 10 but also provide additional support surfaces, making the sill assembly 10 more stable when bearing the pressure of a vehicle being lifted.

[0047] The lower flange 15 is a part that is connected to the lower edge of the door sill bottom wall 11 and extends downward (relative to the ground). The lower flange 15 can further enhance the torsional strength and rigidity of the door sill assembly 10 and prevent deformation due to uneven force during the lifting process. At the same time, the lower flange 15 also increases the connection area between the door sill assembly 10 and other parts of the vehicle. By increasing the connection area, the lower flange 15 can more effectively disperse the force from the lifting reinforcement plate 30, thereby reducing the stress concentration of the door sill assembly 10 when it is under force. This structure helps to maintain the structural integrity of the door sill assembly 10 and prevent deformation or damage caused by excessive local force. At the same time, a larger connection area also means stronger connection stability and higher connection efficiency, which helps to improve the overall performance and safety of the entire vehicle body 100 structure.

[0048] Combine Figure 2 The lifting reinforcement plate 30 includes a reinforcement flange 34 provided on at least one side of the lifting main plate 32 . The reinforcement flange 34 extends along the front-rear direction of the vehicle body 100 . The reinforcement flange 34 is connected to at least one of the rocker side wall 14 and the lower flange 15 .

[0049] In the above technical solution, the reinforcing flange 34 extends along the front-rear direction of the vehicle body 100 , which helps to maximize the structural characteristics of the vehicle body 100 and provide a more balanced and stable supporting force for the lifting reinforcement plate 30 .

[0050] The reinforcement flanges 34 further enhance the connection strength and area between the lift reinforcement plate 30 and the rocker assembly 10, making the entire lift support structure more stable and reliable. When the vehicle is lifted, these reinforcement flanges 34 effectively disperse and absorb the forces generated during the lift, thereby preventing structural damage caused by localized excessive forces.

[0051] In some optional embodiments, reinforcement flanges 34 are formed on both lateral sides of the lifting main plate 32 , and the reinforcement flanges 34 on both sides are formed integrally with the lifting reinforcement plate 30 by stamping.

[0052] Specifically, the reinforcing flange 34 is a portion folded outward along the lateral edge of the lift main plate 32. It is tightly connected to the main plate through a stamping process, forming an integrated structure. This integrated connection simplifies the manufacturing process and reduces assembly steps. Furthermore, no additional welding or bolting is required between the reinforcing flange 34 and the lift main plate 32, achieving seamless integration of the overall structure. This helps to strengthen the bond between the reinforcing flange 34 and the main plate, reducing safety hazards caused by fractures at the connection points or seams.

[0053] In some optional embodiments, reinforcing ribs are provided on the reinforcing flange 34. The provision of the reinforcing ribs helps to improve the bending and torsion resistance of the reinforcing flange 34, thereby improving the load-bearing capacity and stability of the lifting reinforcement plate 30.

[0054] Optionally, the reinforcing ribs may be in the form of raised or recessed strips or a grid structure.

[0055] When the reinforcing ribs are strip-shaped, the reinforcing ribs of the strip-shaped structure can be arranged along the length or width direction of the reinforcing flange 34. Such raised or recessed strip-shaped reinforcing ribs can enhance the overall torsional resistance of the structure by changing the stress state of the material.

[0056] When the reinforcement ribs are a grid structure, the grid-shaped reinforcement ribs can evenly distribute stress, thereby helping to improve the bending and torsional resistance of the lifting reinforcement plate 30 .

[0057] According to some embodiments of the present invention, the reinforcing ribs are formed on the reinforcing flange 34 by integral stamping. There are multiple reinforcing ribs, and the multiple reinforcing ribs are spaced apart along the front-to-back direction of the vehicle body 100 .

[0058] In the above technical solution, the reinforcement ribs are formed directly on the reinforcement flange 34 through an integrated stamping process. This integrated design not only ensures a firm connection between the reinforcement ribs and the reinforcement flange 34, but also improves the overall structural strength and durability of the lifting reinforcement plate 30.

[0059] Specifically, the number of reinforcing ribs is not a single number, but rather a plurality of ribs. These ribs are spaced apart along the front-to-back direction of the vehicle body 100, forming a series of solid support lines, thereby helping to disperse and resist stress and loads from multiple directions, and effectively improving the load-bearing capacity and stability of the lift reinforcement plate 30 during the lifting process of the vehicle body 100.

[0060] Optionally, the lifting reinforcement plate 30 is connected to the door sill assembly 10 by screwing or welding.

[0061] This means that the reinforcement rib and the reinforcement flange 34 are manufactured as two separate parts during the initial processing stage.

[0062] The reinforcement ribs can be made of high-strength materials to provide the required rigidity and load-bearing capacity. The shape and size of these reinforcement ribs can be adjusted according to specific needs and are not limited here.

[0063] After the reinforcing ribs and the reinforcing flanges 34 have been processed separately, they are connected together by welding, screwing or other reliable connection methods. Among them, welding, as a more commonly used connection technology, can provide strong connection strength and lasting durability.

[0064] When the connection method is welding, the connection between the reinforcing ribs and the reinforcing flanges 34 can be ensured to be both firm and stable by controlling the welding process, thereby effectively improving the overall performance of the entire lifting reinforcement plate 30.

[0065] When the connection method is screw connection, the reinforcement ribs and the reinforcement flange 34 are fastened together by screw holes and matching bolts. This connection method can ensure a stable connection between the reinforcement ribs and the reinforcement flange 34, and can also improve the maintainability and flexibility of the structure of the lifting reinforcement plate 30.

[0066] In some optional embodiments, see Figure 1 The lifting main plate 32 is provided with a first connection hole 321, and the threshold bottom wall 11 is provided with a corresponding second connection hole 111 for respectively passing bolts. The lifting main plate 32 is formed with an upwardly protruding sink 323 at the portion surrounding the first connection hole 321.

[0067] In the above technical solution, the provision of sink 323 ensures that, after the bolt is inserted and tightened, the bolt head is at least partially or completely sunken into sink 323. This prevents the bolt head from being exposed and affecting the overall consistency. More importantly, it effectively prevents damage caused by accidental collision or friction during use. Sink 323 provides a safe environment for the bolt head, making the entire connection structure more robust and durable.

[0068] The structure of the sink 323 also ensures ease and accuracy of assembly. During assembly, workers can easily align the bolts with the first and second connection holes 321 and 111, smoothly push the bolt heads into the sink 323, and then tighten them. This simplifies the assembly process, improves work efficiency, and, to a certain extent, reduces the risk of quality problems caused by improper assembly.

[0069] In some Figure 3 In the illustrated embodiment, the first connection hole 321 is disposed adjacent to one lateral side of the lift main plate 32. A positioning hole 322 is also disposed adjacent to the other side of the lift main plate 32. A positioning protrusion (not shown) is disposed on the sill bottom wall 11 and engages with the positioning hole 322.

[0070] In the above technical solution, the first connection hole 321 is located near one lateral side of the lift main plate 32. This configuration not only ensures alignment with the corresponding second connection hole 111 on the threshold bottom wall 11 for bolt insertion, but also ensures stability and uniform force distribution after the bolt connection. Furthermore, to further enhance the precision and stability of the connection, the lift main plate 32 is also provided with positioning holes 322 near the other side. The shape, size, and position of these positioning holes 322 match the positioning protrusions on the threshold bottom wall 11.

[0071] The shape and size of these positioning protrusions match the positioning holes 322, ensuring accurate insertion during assembly. When the lift main plate 32 is assembled with the threshold bottom wall 11, the positioning protrusions are first inserted into the positioning holes 322, providing a pre-positioning mechanism. This simplifies the assembly process, reduces difficulty, and ensures a precise and secure connection between the lift main plate 32 and the threshold bottom wall 11.

[0072] Furthermore, the cooperation between the positioning protrusions and the positioning holes 322 allows the lifting main plate 32 to maintain its correct position and posture during assembly, avoiding problems such as loose connections or uneven force due to assembly errors. This design also improves the reliability and durability of the entire lifting support structure.

[0073] According to the vehicle body 100 of some embodiments of the present invention, the lifting main plate 32 is arranged parallel to the horizontal plane, or the lifting main plate 32 is arranged to extend upward in a direction away from the lower flange 15, and the angle between the lifting main plate 32 and the horizontal plane is less than or equal to 10 degrees.

[0074] When the lifting main plate 32 is arranged parallel to the horizontal plane, it ensures uniform force distribution during lifting, reduces stress concentration during lifting, and protects the vehicle body 100 from damage. Furthermore, this parallel arrangement simplifies the design of the lifting equipment, making it easier to match the lifting support structure of the vehicle body 100, and improving the stability and safety of the lifting operation.

[0075] In some specific scenarios, in order to meet the structures or lifting requirements of different vehicle models, the lifting main board 32 can also extend upward at a slight tilt angle in the direction away from the lower flange 15. This tilted design can increase the height of the lifting point to a certain extent, making the lifting operation smoother. At the same time, by controlling the angle between the lifting main board 32 and the horizontal plane to within 10 degrees, it not only ensures the stability and safety of the lifting process, but also avoids excessive pressure on the structure of the vehicle body 100 or causing deformation. It is worth noting that this tilted design can also generate a component force toward the lower flange 15 when the jack is working. With the obstruction of the lower flange 15, the jack will not slide off the lifting main board 32, thereby improving the safety of use.

[0076] The vehicle according to the second embodiment of the present invention includes the vehicle body 100 according to the first embodiment of the present invention.

[0077] It is worth noting that the specific type of vehicle referred to in this application is not limited. For example, the vehicle can be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, a fuel cell electric vehicle, an extended-range vehicle, a solar electric vehicle, a gas-powered vehicle (e.g., a hydrogen engine vehicle), or a biofuel vehicle (e.g., a vehicle powered by ethanol, biodiesel, etc.). The vehicle of the embodiment of the present invention utilizes the independently designed lifting support structure in the vehicle body 100 to achieve flexible layout of the lifting points, no longer constrained by the existing structure of the vehicle body 100, thereby improving the vehicle's lifting flexibility.

[0078] Reference below Figure 1 - Figure 3 The vehicle body 100 according to the embodiment of the present invention is described in detail with reference to a specific embodiment. It is worth noting that the following description is merely an illustrative description and does not specifically limit the present invention.

[0079] Reference Figure 1 The vehicle body 100 includes a rocker assembly 10 and a lifting reinforcement plate 30 .

[0080] The lifting reinforcement plate 30 is connected to the door sill assembly 10 by screwing.

[0081] The threshold assembly 10 extends in the front-to-rear direction and includes a threshold bottom wall 11 , a threshold energy absorbing cavity 13 above the threshold bottom wall 11 , threshold side walls 14 connected to both lateral sides of the threshold bottom wall 11 , and a lower flange 15 .

[0082] The threshold side wall 14 extends upward relative to the threshold bottom wall 11 , and the lower flange 15 extends downward relative to the threshold bottom wall 11 .

[0083] Reference Figure 2 The lifting reinforcement plate 30 includes: a lifting main plate 32 and a reinforcement flange 34 formed by integral stamping.

[0084] The lifting main plate 32 is mounted on the bottom surface of the door sill bottom wall 11 , and the yield strength of the lifting reinforcement plate 30 is at least 300 MPa.

[0085] Reference Figure 3 A first connecting hole 321 and a positioning hole 322 are provided on the lifting main board 32 .

[0086] The threshold bottom wall 11 is provided with: a second connecting hole 111 and a positioning protrusion (not shown). The first connecting hole 321 corresponds to the second connecting hole 111 to respectively pass a bolt.

[0087] The positioning protrusion is cooperatively disposed in the positioning hole 322 .

[0088] The lifting main plate 32 forms an upwardly protruding depression 323 at a portion surrounding the first connection hole 321 .

[0089] There are two reinforcing flanges 34, which are respectively provided on both sides of the lifting main plate 32 and extend along the front-rear direction of the vehicle body 100. The two reinforcing flanges 34 are respectively connected to the rocker side wall 14 and the lower flange 15.

[0090] The reinforcing flange 34 is provided with a plurality of reinforcing ribs, which are spaced apart along the front-to-back direction of the vehicle body 100 .

[0091] Other components of the vehicle body 100 according to the embodiment of the present invention, such as the vehicle body and the operation thereof, are well known to those skilled in the art and will not be described in detail here.

[0092] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0093] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle body, characterized in that: include: A threshold assembly, the threshold assembly extending in the front-to-rear direction, the threshold assembly comprising a threshold bottom wall and a threshold energy-absorbing cavity located above the threshold bottom wall; A lifting reinforcement plate, at least a portion of which is a lifting main plate, the lifting main plate being mounted on the bottom surface of the door sill bottom wall, and the yield strength of the lifting reinforcement plate being at least 300 MPA.

2. The vehicle body according to claim 1, characterized in that The door sill assembly further includes: Threshold side walls and lower flanges connected to the lateral sides of the threshold bottom wall, the threshold side walls and the lower flanges respectively extending upward and downward relative to the threshold bottom wall; The lifting reinforcement plate includes a reinforcement flange provided on at least one side of the lifting main plate, the reinforcement flange extending along the front-rear direction of the vehicle body, and the reinforcement flange connected to at least one of the rocker side wall and the lower flange.

3. The vehicle body according to claim 2, characterized in that The reinforcing flanges are formed on both lateral sides of the lifting main plate, and the reinforcing flanges on both sides are formed integrally with the lifting reinforcing plate by stamping.

4. The vehicle body according to claim 2, characterized in that The reinforcing flange is provided with reinforcing ribs.

5. The vehicle body according to claim 4, characterized in that The reinforcing ribs are formed on the reinforcing flanges by integral stamping. There are a plurality of reinforcing ribs, and the plurality of reinforcing ribs are distributed at intervals along the front-rear direction of the vehicle body.

6. The vehicle body according to any one of claims 1 to 5, characterized in that: The lifting reinforcement plate is connected to the door sill assembly by screwing or welding.

7. The vehicle body according to claim 6, characterized in that The lifting main plate is provided with a first connecting hole, and the bottom wall of the door sill is provided with a corresponding second connecting hole for respectively passing bolts; The lifting main plate forms an upwardly protruding sink at a portion surrounding the first connecting hole.

8. The vehicle body according to claim 7, characterized in that The first connection hole is provided adjacent to one lateral side of the lifting main plate, and the lifting main plate is further provided with a positioning hole adjacent to the other side; The bottom wall of the door sill is provided with a positioning protrusion which fits into the positioning hole.

9. The vehicle body according to any one of claims 2 to 5, characterized in that: The lifting main plate is arranged parallel to the horizontal plane, or the lifting main plate is arranged to extend upwardly in a direction away from the lower flange, and the angle between the lifting main plate and the horizontal plane is less than or equal to 10 degrees.

10. A vehicle, characterized in that: Comprising a vehicle body according to any one of claims 1-9.

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