Car body and vehicle

Abstract

A vehicle body (400) and a vehicle (1000), wherein the vehicle body (400) comprises a floor (1), two first longitudinal beams (2), a first cross beam (3) and a reinforcing plate (4), wherein the two first longitudinal beams (2) are arranged at intervals along a first direction and connected to the floor (1), the first cross beam (3) extends along the first direction, is connected to the floor (1), and is located between the two first longitudinal beams (2), the first cross beam (3) is used for installing a seat, and the reinforcing plate (4) is at least partially located between the first cross beam (3) and the floor (1), and is used to connect the first longitudinal beam (2) and the first cross beam (3). By providing the reinforcing plate (4), on the one hand, the connection between the first longitudinal beam (2) and the first cross beam (3) has a double-layer structure, thereby significantly enhancing the mechanical strength of the connection between the first longitudinal beam (2) and the first cross beam (3), and reducing the risk of the first longitudinal beam (2) and the first cross beam (3) bending and failing at the connection when a collision occurs; on the other hand, the first longitudinal beam (2) and the first cross beam (3) are connected by the reinforcing plate (4), which can also reduce the connection structure provided on the first cross beam (3), effectively reducing the structural complexity of the first cross beam (3), and facilitating the molding of the first cross beam (3).

Description

Body and vehicle Technical Field

[0001] The present application belongs to the technical field of vehicle structures, and in particular relates to a vehicle body and a vehicle. Background Art

[0002] With the development of battery technology, the use of electric vehicles is becoming increasingly popular. At present, in the field of electric vehicles, in order to improve the endurance of electric vehicles, it is necessary to expand the volume of the battery structure on the vehicle body. However, the larger battery structure has a greater impact on the overall layout of the vehicle body, which can easily lead to a decrease in the mechanical strength of the vehicle body and seriously affect the safety of electric vehicle use.

[0003] Application Contents

[0004] Embodiments of the present application provide a vehicle body and a vehicle, which can improve the mechanical strength of the vehicle.

[0005] According to a first aspect of an embodiment of the present application, a vehicle body is provided, comprising a floor, two first longitudinal beams, a first cross beam and a reinforcement plate, wherein the two first longitudinal beams are spaced apart along a first direction and connected to the floor, the first cross beam extends along the first direction, is connected to the floor, and is located between the two first longitudinal beams, the first cross beam is used for installing a seat, and the reinforcement plate is at least partially located between the first cross beam and the floor, and is used to connect the first longitudinal beam and the first cross beam.

[0006] With the above structure, on the one hand, by providing a reinforcing plate, the connection between the first longitudinal beam and the first cross beam has a double-layer structure, thereby significantly enhancing the mechanical strength of the connection between the first longitudinal beam and the first cross beam, and reducing the risk of the first longitudinal beam and the first cross beam bending and failing at the connection when a collision occurs. On the other hand, the first longitudinal beam and the first cross beam are connected by the reinforcing plate, which can also reduce the connection structure provided on the first cross beam, effectively reducing the structural complexity of the first cross beam, and facilitating the forming of the first cross beam.

[0007] In some optional embodiments of the present application, the reinforcement plates include two, and the two ends of the first cross beam along the first direction are connected to the two first longitudinal beams through the two reinforcement plates respectively.

[0008] With the above structure, by providing two reinforcing plates, the two ends of the first cross beam along the first direction are connected to the two first longitudinal beams respectively through the two reinforcing plates, which can reduce the setting size of the reinforcing plates and make the vehicle body structure more compact.

[0009] In some optional embodiments of the present application, the reinforcement plate includes a reinforcement body and a flange portion. The reinforcement body is located between the floor and the first crossbeam. The flange portion protrudes from the end of the first crossbeam close to the first longitudinal beam and is folded relative to the reinforcement body. The flange portion is connected to the first longitudinal beam.

[0010] With the above structure, by providing the flange portion, the reinforcing plate can be easily abutted against the first longitudinal beam, thereby expanding the contact area between the reinforcing plate and the first longitudinal beam and facilitating the transmission of force from the first longitudinal beam to the reinforcing plate.

[0011] In some optional embodiments of the present application, a plurality of flange portions are arranged at intervals along the contour of the end portion of the reinforcing body facing the first longitudinal beam.

[0012] According to the above structure, the difficulty of forming the burring portion can be reduced by providing a plurality of burring portions at intervals along the contour of the end portion of the upper surface of the reinforcement body facing the first longitudinal beam.

[0013] In some optional embodiments of the present application, the reinforcing body is stacked with the first crossbeam and is attached to the first crossbeam.

[0014] By adopting the above structure, by stacking the reinforcing body and the first beam and fitting them to the first beam, the general trend of the reinforcing body can be made the same as that of the first beam, reducing the gap between the reinforcing body and the first beam, making it easier for the reinforcing plate to transmit force to the first beam after bearing the force.

[0015] In some optional embodiments of the present application, a side of the reinforcing plate away from the flange portion further includes an inclined portion, and the inclined portion is inclined from the first cross beam toward the floor.

[0016] By adopting the above structure and setting the inclined portion, the side of the reinforcing plate away from the flange portion can have a larger avoidance space. After the side of the reinforcing plate away from the flange portion is warped under load, it does not directly abut against the first beam, which is convenient for stress dispersion and reduces the risk of bending failure of the first beam.

[0017] In some optional embodiments of the present application, the vehicle body further includes a connecting plate connecting the reinforcing plate and the first longitudinal beam.

[0018] By adopting the above structure and setting a connecting plate, the connection strength between the first longitudinal beam and the reinforcing plate can be further strengthened. When a collision occurs, the load can be evenly transferred to the first cross beam through the connecting plate, reducing the risk of the first longitudinal beam and the first cross beam collapsing at the connection.

[0019] In some optional embodiments of the present application, the first longitudinal beam has an upper surface protruding from the floor, the connecting plate includes a first connecting portion, a bending portion and a second connecting portion, the first connecting portion is connected to the upper surface, the second connecting portion is connected to the floor, the bending portion connects the first connecting portion and the second connecting portion, and the reinforcing plate is connected to the bending portion.

[0020] With the above structure, on the one hand, by providing the first connecting portion and the bending portion, it is convenient to overlap the connecting plate with the first longitudinal beam, and the portion on the connecting plate is wrapped around the first longitudinal beam, thereby improving the connection strength between the connecting plate and the first longitudinal beam. On the other hand, by providing the second connecting portion and the bending portion, it is convenient to fit the portion on the connecting plate to the floor, thereby strengthening the connection stability between the connecting piece and the floor.

[0021] In some optional embodiments of the present application, the first cross beam has a protrusion protruding toward a side away from the floor, and the protrusion is used to install the seat.

[0022] By adopting the above structure and providing the raised portion, on the one hand, the structural three-dimensionality of the first beam can be enhanced and the load-bearing capacity of the first beam can be improved. On the other hand, an additional cavity structure is formed on the first beam to facilitate the installation of the seat.

[0023] In some optional embodiments of the present application, a plurality of raised portions are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction and the raised direction of the raised portions.

[0024] With the above structure, by arranging a plurality of protrusions at intervals along the second direction, the first beam can be provided with a plurality of ridges along the first direction, thereby effectively improving the axial rigidity of the first beam.

[0025] In some optional embodiments of the present application, the vehicle body includes an upper vehicle body and a lower vehicle body, the lower vehicle body includes a floor, a first longitudinal beam, a first cross beam and a reinforcing plate, the first longitudinal beam is connected to the upper vehicle body, and the upper vehicle body and the lower vehicle body are detachably connected.

[0026] In some optional embodiments of the present application, a support platform is further provided on the first longitudinal beam, the support platforms on the two first longitudinal beams correspond to each other, and at least a portion of the floor is laid on the support platform.

[0027] With the above structure, by providing a support platform, it is convenient to lay the floor on the first longitudinal beam, thereby improving the connection strength between the floor and the first longitudinal beam.

[0028] According to a second aspect of the embodiments of the present application, a vehicle is provided, comprising the vehicle body described above.

[0029] In some optional embodiments of the present application, the vehicle further includes a battery, which is mounted on the floor of the vehicle body.

[0030] Compared with the related art, in the vehicle body and vehicle of the embodiment of the present application, on the one hand, by providing a reinforcing plate, the connection between the first longitudinal beam and the first cross beam has a double-layer structure, thereby significantly enhancing the mechanical strength of the connection between the first longitudinal beam and the first cross beam, and reducing the risk of the first longitudinal beam and the first cross beam bending and failing at the connection in the event of a collision. On the other hand, the first longitudinal beam and the first cross beam are connected by the reinforcing plate, which can also reduce the connection structure provided on the first cross beam, effectively reducing the structural complexity of the first cross beam, and facilitating the forming of the first cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0032] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application.

[0033] FIG2 is a schematic structural diagram of a vehicle body provided in some embodiments of the present application.

[0034] FIG3 is a schematic diagram of the local structure of the reinforcement plate provided in some embodiments of the present application.

[0035] FIG4 is a schematic cross-sectional view along the AA direction in FIG3 .

[0036] FIG5 is a schematic cross-sectional view along the BB direction in FIG3 .

[0037] FIG6 is a schematic structural diagram of a reinforcement plate provided in some embodiments of the present application.

[0038] In the attached figure:

[0039] 1000. Vehicle; 100. Battery; 200. Controller; 300. Motor; 400. Vehicle body; 10. Upper vehicle body; 20. Lower vehicle body; 1. Floor; 2. First longitudinal beam; 21. Support platform; 3. First transverse beam; 31. Seat receiving surface; 32. Seat mounting hole; 33. Raised portion; 4. Reinforcement plate; 41. Reinforced body; 42. Flanged portion; 43. Inclined portion; 44. Avoidance gap; 5. Connecting plate; 51. First connecting portion; 52. Bending portion; 53. Second connecting portion.

[0040] In the accompanying drawings, the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION

[0041] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, i.e., the present application is not limited to the described embodiments.

[0042] In the description of this application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly perpendicular, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0043] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0044] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] Currently, electric vehicles are widely used in the market. However, as electric vehicles continue to develop, the market is placing higher demands on their range. Improving the range of electric vehicles requires increasing the battery structure's proportion within the vehicle body, which inevitably reduces the vehicle's structural strength. Therefore, improving the range of electric vehicles while maintaining the vehicle's structural strength is a current research priority.

[0046] In related technologies, the CTC (Cell to Chassis) process, which further integrates the vehicle body and battery structure, can effectively streamline the vehicle body structure and reduce the space required for the two components to fit together. This not only increases the battery capacity but also reduces the vehicle's weight, thereby improving the electric vehicle's range. However, the inventors noted that this streamlined vehicle body structure significantly reduces the force transmission path and crushing space within the vehicle. In the event of a collision, the vehicle body structure struggles to effectively transmit force, potentially compressing internal structures such as the battery, potentially impairing functionality and even causing safety accidents.

[0047] In order to solve the problem of poor vehicle body structural strength, the applicant has discovered that there are many weak points in the vehicle body structure. When the vehicle body collides, the weak points are prone to collapse, causing pressure on the internal structure of the vehicle body. Therefore, targeted reinforcement of the weak points on the vehicle body can effectively improve the problem of vehicle body collapse, thereby improving the strength of the vehicle body structure.

[0048] Based on the above considerations, the inventors of the present application have designed a vehicle body and a vehicle after in-depth research.

[0049] FIG1 is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. As shown in FIG1 , the vehicle 1000 may be a pure electric vehicle, a hybrid electric vehicle, an extended-range vehicle, or the like. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head, or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000. For example, the battery 100 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300. The motor 300 is used to provide driving force for the movement of the vehicle 1000, for example, for the starting, navigation, and operating power requirements of the vehicle 1000 during driving.

[0050] In some embodiments of the present application, the vehicle 1000 further includes a body, and the battery 100 , the controller 200 , and the motor 300 are disposed inside the body.

[0051] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0052] In the embodiments of the present application, the battery mentioned herein refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned herein may include a battery module or a battery pack.

[0053] Figure 2 is a structural schematic diagram of the vehicle body provided in some embodiments of the present application, Figure 3 is a local structural schematic diagram of the reinforcement plate 4 provided in some embodiments of the present application, Figure 4 is a cross-sectional schematic diagram along the AA direction in Figure 3, and Figure 5 is a cross-sectional schematic diagram along the BB direction in Figure 3.

[0054] As shown in Figures 2 to 5, in some optional embodiments of the present application, a vehicle body 400 is provided, including a floor 1, two first longitudinal beams 2, a first cross beam 3 and a reinforcement plate 4. The two first longitudinal beams 2 are spaced apart along the first direction x and connected to the floor 1. The first cross beam 3 extends along the first direction x, is connected to the floor 1, and is located between the two first longitudinal beams 2. The first cross beam 3 is used to install seats. The reinforcement plate 4 is at least partially located between the first cross beam 3 and the floor 1, and is used to connect the first longitudinal beam 2 and the first cross beam 3.

[0055] The floor 1 refers to a component provided at the bottom of the vehicle body 400 for providing a supporting foundation for the internal structure of the vehicle body 400 . For example, the floor 1 can be laid on the first longitudinal beams 2 on both sides.

[0056] The first longitudinal beams 2 refer to two supporting beams arranged along the width direction of the vehicle body 400 . For example, the first longitudinal beams 2 may be door sill beams on the vehicle body 400 .

[0057] The first cross member 3 refers to a support beam extending across the floor 1 along the width direction of the vehicle body 400 . For example, the first cross member 3 may be a seat cross member.

[0058] The reinforcing plate 4 refers to a plate body used to strengthen the structural strength of the connection between the first crossbeam 3 and the first longitudinal beam 2. The reinforcing plate 4 can be a plate body that covers or fills the gap at the connection between the first crossbeam 3 and the first longitudinal beam 2, or it can be a connecting joint arranged on the end of the first crossbeam 3 facing the first longitudinal beam 2, so as to facilitate the connection of the first crossbeam 3 to the first longitudinal beam 2, and the reinforcing plate 4 can be wrapped around the end of the first crossbeam 3 facing the first longitudinal beam 2, or lined inside the end of the first crossbeam 3 facing the first longitudinal beam 2 to strengthen the mechanical strength of the first crossbeam 3.

[0059] By providing the reinforcing plate 4, on the one hand, the connection between the first longitudinal beam 2 and the first cross beam 3 has a double-layer structure, thereby significantly enhancing the mechanical strength of the connection between the first longitudinal beam 2 and the first cross beam 3, and reducing the risk of the first longitudinal beam 2 and the first cross beam 3 bending and failing at the connection when a collision occurs. On the other hand, the first longitudinal beam 2 and the first cross beam 3 are connected by the reinforcing plate 4, which can also reduce the connection structure provided on the first cross beam 3, effectively reducing the structural complexity of the first cross beam 3, and facilitating the molding of the first cross beam 3.

[0060] Optionally, a support platform 21 is further provided on each of the first longitudinal beams 2. The support platforms 21 on the two first longitudinal beams 2 correspond to each other, and at least a portion of the floor 1 is laid on the support platform 21. Exemplarily, the support platform 21 is a plate-like structure that is raised in a first direction on a surface of a first longitudinal beam 2 facing the other first longitudinal beam 2. The floor 1 can be laid on the upper surface of the support platform 21 along the raised direction z.

[0061] Optionally, a seat receiving surface 31 may be provided on the side of the first crossbeam 3 away from the floor 1, and the seat receiving surface 31 is used to install a seat. For example, the seat receiving surface 31 may be provided with a mounting structure, such as a seat mounting hole 32, a mounting groove, etc., for installing the seat.

[0062] Optionally, the reinforcing plate 4 may be fixedly connected to the first crossbeam 3 , such as by welding, gluing, etc. Optionally, the reinforcing plate 4 may be detachably connected to the first crossbeam 3 , such as by bolting, clamping, etc.

[0063] Optionally, the reinforcing plate 4 may be arranged in contact with the surface of the first cross beam 3 close to the floor 1 .

[0064] Optionally, along the first direction, one end of the reinforcing plate 4 protrudes from one end of the first crossbeam 3 , and the other end of the reinforcing plate 4 protrudes from the other end of the first crossbeam 3 .

[0065] In some optional embodiments of the present application, the reinforcement plates 4 include two, and the two ends of the first cross beam 3 along the first direction are connected to the two first longitudinal beams 2 through the two reinforcement plates 4 respectively.

[0066] By providing two reinforcing plates 4 , the two ends of the first cross beam 3 along the first direction are connected to the two first longitudinal beams 2 through the two reinforcing plates 4 , respectively. This can reduce the size of the reinforcing plates 4 and make the vehicle body 400 more compact.

[0067] Optionally, the two reinforcing plates 4 may be arranged symmetrically with the center line of the first crossbeam 3 being an axis.

[0068] FIG6 is a schematic structural diagram of a reinforcing plate 4 provided in some embodiments of the present application.

[0069] As shown in Figures 3, 5 and 6, in some optional embodiments of the present application, the reinforcing plate 4 includes a reinforcing body 41 and a flange portion 42. The reinforcing body 41 is located between the floor 1 and the first crossbeam 3. The flange portion 42 protrudes from the end of the first crossbeam 3 close to the first longitudinal beam 2 and is folded relative to the reinforcing body 41. The flange portion 42 is used to connect to the first longitudinal beam 2.

[0070] The flange portion 42 is provided to facilitate the contact between the reinforcing plate 4 and the first longitudinal beam 2 , thereby increasing the contact area between the reinforcing plate 4 and the first longitudinal beam 2 and facilitating the transmission of force from the first longitudinal beam 2 to the reinforcing plate 4 .

[0071] Optionally, the reinforcement body 41 and the flange portion 42 may be integrally formed or separately formed. When they are separately formed, the reinforcement body 41 and the flange portion 42 may be connected by welding, gluing, or the like.

[0072] Optionally, multiple flanged portions 42 may be provided at intervals along the contour of the end portion of the reinforcement body 41 facing the first longitudinal beam 2. For example, each of the flanged portions 42 has an abutment surface on the side facing the first longitudinal beam 2. These abutment surfaces of the flanged portions 42 are located in the same plane, and the flanged portions 42 abut against the first longitudinal beam 2 via the abutment surfaces. For example, the abutment surfaces may be provided with wear-resistant grooves, or the flanged portions 42 may be made of an extrusion-resistant material.

[0073] As shown in FIG. 3 to FIG. 5 , in some optional embodiments of the present application, the reinforcing body 41 is stacked with the first crossbeam 3 and is attached to the first crossbeam 3 .

[0074] By stacking the reinforcing body 41 and the first beam 3 and fitting them to the first beam 3, the general trend of the reinforcing body 41 can be made the same as that of the first beam 3, reducing the gap between the reinforcing body 41 and the first beam 3, making it easier for the reinforcing plate 4 to transmit force to the first beam 3 after bearing the force.

[0075] As shown in FIG. 3 to FIG. 6 , in some optional embodiments of the present application, the side of the reinforcing plate 4 away from the flange portion 42 further includes an inclined portion 43 , and the inclined portion 43 is inclined from the first cross beam 3 toward the floor 1 .

[0076] The inclined portion 43 refers to a structure in which the end surface of the reinforcing plate 4 away from the flange portion 42 is inclined from the first cross beam 3 toward the beam body of the floor 1. For example, the angle of the inclined portion 43 on the side close to the floor 1 is an acute angle.

[0077] By providing the inclined portion 43, a larger avoidance space can be provided on the side of the reinforcing plate 4 away from the flange portion 42. After the side of the reinforcing plate 4 away from the flange portion 42 is warped under load, it does not directly abut against the first beam 3, which facilitates stress dispersion and reduces the risk of bending failure of the first beam 3.

[0078] Optionally, an avoidance gap 44 is formed on the side of the inclined portion 43 away from the floor 1 to facilitate accommodating the inclined portion 43 when the reinforcing plate 4 is bent under load.

[0079] As shown in FIG. 3 to FIG. 5 , in some optional embodiments of the present application, the vehicle body 400 further includes a connecting plate 5 , which connects the reinforcing plate 4 and the first longitudinal beam 2 .

[0080] The connecting plate 5 refers to a plate body located between the first longitudinal beam 2 and the reinforcing plate 4 . For example, one side of the connecting plate 5 abuts against the first longitudinal beam 2 , and the other side abuts against the reinforcing plate 4 .

[0081] By providing the connecting plate 5, the connection strength between the first longitudinal beam 2 and the reinforcing plate 4 can be further strengthened. In the event of a collision, the load can be evenly transferred to the first cross beam 3 through the connecting plate 5, reducing the risk of the first longitudinal beam 2 and the first cross beam 3 collapsing at the connection.

[0082] As shown in Figures 3 to 5, in some optional embodiments of the present application, the first longitudinal beam 2 has an upper surface protruding from the floor 1, the connecting plate 5 includes a first connecting portion 51, a bending portion 52 and a second connecting portion 53, the first connecting portion 51 is connected to the upper surface, the second connecting portion 53 is connected to the floor 1, the bending portion 52 connects the first connecting portion 51 and the second connecting portion 53, and the reinforcing plate 4 is connected to the bending portion 52.

[0083] By providing the first connecting portion 51 and the bending portion 52, it is convenient to overlap the connecting plate 5 with the first longitudinal beam 2, and the part on the connecting plate 5 is wrapped around the first longitudinal beam 2, thereby improving the connection strength between the connecting plate 5 and the first longitudinal beam 2. By providing the second connecting portion 53 and the bending portion 52, it is convenient to fit the part on the connecting plate 5 to the floor 1, thereby strengthening the connection stability between the connecting piece and the floor 1.

[0084] Optionally, the first connecting portion 51 , the bending portion 52 and the second connecting portion 53 may be integrally formed or separately formed. When separately formed, the first connecting portion 51 , the bending portion 52 and the second connecting portion 53 may be connected by welding, gluing, etc.

[0085] Optionally, the second connection portion 53 is disposed between the floor panel 1 and the reinforcement plate 4 .

[0086] As shown in FIG. 3 to FIG. 5 , in some optional embodiments of the present application, the first cross beam 3 has a protrusion 33 protruding toward a side away from the floor 1 , and the protrusion 33 is used for installing a seat.

[0087] By providing the protrusion 33 , on the one hand, the structural three-dimensionality of the first crossbeam 3 can be enhanced and the load-bearing capacity of the first crossbeam 3 can be improved. On the other hand, an additional cavity structure is formed on the first crossbeam 3 to facilitate the installation of the seat.

[0088] Optionally, one side of the raised portion 33 located on the floor 1 may be a hollow structure to facilitate wiring on the vehicle body 400 .

[0089] As shown in Figures 3 to 5, in some optional embodiments of the present application, a plurality of raised portions 33 are provided at intervals along the second direction y, which is perpendicular to the first direction x and the protruding direction z of the raised portions 33. By providing a plurality of raised portions 33 at intervals along the second direction y, the first crossbeam 3 can be provided with multiple ridges along the first direction x, effectively improving the axial stiffness of the first crossbeam 3.

[0090] Optionally, two protrusions 33 are arranged at intervals along the second direction y. Exemplarily, the cross section of the first beam 3 in the first direction is “M”-shaped.

[0091] As shown in Figure 2, in some optional embodiments of the present application, the vehicle body 400 includes an upper vehicle body 10 and a lower vehicle body 20, the lower vehicle body 20 includes a floor 1, a first longitudinal beam 2, a first cross beam 3 and a reinforcing plate 4, the first longitudinal beam 2 is connected to the upper vehicle body 10, and the upper vehicle body 10 and the lower vehicle body 20 are detachably connected.

[0092] Optionally, one of the upper body 10 and the lower body 20 is provided with a through hole, and the other is provided with a nut, and the bolt passes through the through hole and is threadedly connected to the nut.

[0093] Optionally, the vehicle body 400 further includes a sealing component, which is sandwiched between the upper vehicle body 10 and the lower vehicle body 20 and surrounds the passenger compartment of the vehicle.

[0094] In some optional embodiments of the present application, a vehicle is provided, which includes the above-mentioned vehicle body 400.

[0095] In some optional embodiments of the present application, the vehicle further includes a battery, which is installed on the floor 1 of the vehicle body 400 .

[0096] In some optional embodiments of the present application, a vehicle body 400 is provided, including a floor 1, two first longitudinal beams 2, a first cross beam 3 and a reinforcement plate 4, the two first longitudinal beams 2 are arranged at intervals along a first direction and connected to the floor 1, the first cross beam 3 is connected to the floor 1 and is located between the two first longitudinal beams 2, the first cross beam 3 is used to install a seat, and the reinforcement plate 4 is at least partially located between the first cross beam 3 and the floor 1, and is used to connect the first longitudinal beam 2 and the first cross beam 3. The two reinforcing plates 4 are connected to the two first longitudinal beams 2 at both ends of the first crossbeam 3 along the first direction via two reinforcing plates 4. The reinforcing plates 4 include a reinforcing body 41 and a flange portion 42. The reinforcing body 41 is located between the floor 1 and the first crossbeam 3. The flange portion 42 protrudes from the end of the first crossbeam 3 near the first longitudinal beam 2 and is folded relative to the reinforcing body 41. The flange portion 42 is used to connect to the first longitudinal beam 2. The reinforcing body 41 is stacked with the first crossbeam 3 and adheres to the first crossbeam 3. The side of the reinforcing plate 4 away from the flange portion 42 also includes an inclined portion 43, which is inclined from the first crossbeam 3 toward the floor 1. The vehicle body 400 also includes a connecting plate 5, which connects the reinforcing plate 4 and the first longitudinal beam 2. The first longitudinal beam 2 has an upper surface protruding from the floor 1. The connecting plate 5 includes a first connecting portion 51, a bent portion 52, and a second connecting portion 53. The first connecting portion 51 is connected to the upper surface, the second connecting portion 53 is connected to the floor 1, the bent portion 52 connects the first connecting portion 51 and the second connecting portion 53, and the reinforcing plate 4 is connected to the bent portion 52. The first transverse beam 3 has a raised portion 33 protruding away from the floor 1. The raised portion 33 is used to mount a seat. Multiple raised portions 33 are arranged at intervals along a second direction, which is perpendicular to the first direction and the protruding direction of the raised portions 33.

[0097] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

Claims

1. A vehicle body, comprising: floor; Two first longitudinal beams are spaced apart along a first direction and connected to the floor; A first cross beam extending along a first direction, connected to the floor, and located between the two first longitudinal beams, wherein the first cross beam is used for installing a seat; as well as The reinforcing plate is at least partially located between the first cross beam and the floor panel and is used to connect the first longitudinal beam and the first cross beam.

2. The vehicle body according to claim 1, wherein: The reinforcing plates include two, and two ends of the first cross beam along the first direction are connected to the two first longitudinal beams through the two reinforcing plates respectively.

3. The vehicle body according to claim 1 or 2, wherein: The reinforcing plate comprises a reinforcing body and a flange portion, wherein the reinforcing body is located between the floor and the first cross beam, and the flange portion protrudes from an end portion of the first cross beam close to the first longitudinal beam and is folded relative to the reinforcing body; The flange portion is connected to the first longitudinal beam.

4. The vehicle body according to claim 3, wherein: A plurality of flange portions are provided at intervals along a contour of an end portion of the reinforcing body facing the first longitudinal beam.

5. The vehicle body according to claim 3, wherein: The reinforcing body is stacked with the first crossbeam and is attached to the first crossbeam.

6. The vehicle body according to any one of claims 3 to 5, wherein: The reinforcing plate further includes an inclined portion on a side away from the flange portion, and the inclined portion is inclined from the first cross beam toward the floor.

7. The vehicle body according to any one of claims 1 to 6, wherein: The vehicle body further includes a connecting plate connecting the reinforcing plate and the first longitudinal beam.

8. The vehicle body according to claim 7, wherein: The first longitudinal beam has an upper surface protruding from the floor; The connecting plate includes a first connecting portion, a bending portion, and a second connecting portion, wherein the first connecting portion is connected to the upper surface, the second connecting portion is connected to the floor, and the bending portion connects the first connecting portion and the second connecting portion; The reinforcing plate is connected to the bending portion.

9. The vehicle body according to any one of claims 1 to 8, wherein: The first cross beam has a protruding portion protruding toward a side away from the floor, and the protruding portion is used for installing a seat.

10. The vehicle body according to claim 9, wherein: A plurality of the protrusions are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction and the protruding directions of the protrusions.

11. The vehicle body according to any one of claims 1 to 10, wherein: The vehicle body includes an upper vehicle body and a lower vehicle body, the lower vehicle body includes the floor, the first longitudinal beam, the first cross beam and the reinforcing plate, the first longitudinal beam is connected to the upper vehicle body, and the upper vehicle body is detachably connected to the lower vehicle body.

12. The vehicle body according to any one of claims 1 to 11, wherein: A support platform is also provided on the first longitudinal beam, and the support platforms on the two first longitudinal beams correspond to each other, and at least a part of the floor is laid on the support platform.

13. A vehicle comprising the vehicle body according to any one of claims 1 to 12.

14. The vehicle according to claim 13, wherein: The vehicle further includes a battery mounted on a floor of the vehicle body.

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