Vehicle body structure and vehicle

Abstract

The embodiment of the application provides a vehicle body structure and a vehicle, and relates to the technical field of vehicles. The vehicle body structure comprises a force transmission assembly, at least two front longitudinal beams and at least two floor longitudinal beams. The front longitudinal beams are connected to the floor longitudinal beams in a one-to-one correspondence. The force transmission assembly comprises at least one force transmission piece, at least two first longitudinal beams and at least two second longitudinal beams. The first longitudinal beams are connected to the front longitudinal beams in a one-to-one correspondence. The second longitudinal beams correspond to the first longitudinal beams in a one-to-one correspondence. The force transmission piece is arranged between the corresponding first longitudinal beam and the second longitudinal beam, and the force transmission piece is detachably connected to each first longitudinal beam and each second longitudinal beam. The vehicle body structure of the vehicle of the embodiment of the application can simultaneously transmit and disperse the collision force borne by the front longitudinal beams through the floor longitudinal beams and the force transmission assembly, so that the effective dispersion of the collision force can be realized.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle body structure and a vehicle. Background Technology

[0002] When a vehicle collides, the front longitudinal beam is prone to deformation under the impact force.

[0003] In related technologies, a vehicle includes a front longitudinal beam, a floor, and a floor longitudinal beam. The floor longitudinal beam is connected to the lower part of the floor, and the front longitudinal beam is connected to the floor longitudinal beam and located on one side of the floor. Thus, the floor longitudinal beam can transmit and disperse the impact force on the front longitudinal beam.

[0004] However, when the structural strength of the floor longitudinal beams is low, the floor longitudinal beams are unable to effectively disperse the impact force. Utility Model Content

[0005] This application provides a vehicle body structure and vehicle. When the structural strength of the floor longitudinal beam is low, the collision force borne by the front longitudinal beam can be transmitted and dispersed simultaneously through the floor longitudinal beam and the force transmission component, thereby achieving effective dispersion of the collision force.

[0006] In a first aspect, embodiments of this application provide a vehicle body structure, including a force transmission assembly, at least two front longitudinal beams, and at least two floor longitudinal beams. The front longitudinal beams and floor longitudinal beams are connected in a one-to-one correspondence. The force transmission assembly includes at least one force transmission element, at least two first longitudinal beams, and at least two second longitudinal beams. The first longitudinal beams are connected in a one-to-one correspondence with the front longitudinal beams. The second longitudinal beams are connected in a one-to-one correspondence with the first longitudinal beams. The force transmission element is disposed between the corresponding first and second longitudinal beams, and is detachably connected to each first and second longitudinal beam, wherein the force transmission element is a longitudinal beam assembly or a battery pack.

[0007] In some possible implementations, the force transmission component further includes at least two first detachable connectors and at least two second detachable connectors. One end of the force transmission component is connected to a first longitudinal beam via a first detachable connector, and the other end of the force transmission component is connected to a second longitudinal beam via a second detachable connector.

[0008] In some possible implementations, the first longitudinal beam has a first connecting hole, the second longitudinal beam has a second connecting hole, and the force transmission component has at least two third connecting holes corresponding to the first connecting holes and at least two fourth connecting holes corresponding to the second connecting holes. Both the first and second detachable connectors are threaded connectors. The first detachable connector is sequentially inserted into the corresponding first and third connecting holes to detachably connect the first longitudinal beam and the force transmission component. The second detachable connector is sequentially inserted into the corresponding second and fourth connecting holes to detachably connect the second longitudinal beam and the force transmission component.

[0009] In some possible implementations, the force transmission element is a longitudinal beam assembly, or the force transmission element is formed through the housing of the battery pack.

[0010] In some possible implementations, the vehicle body structure also includes a floor, with floor longitudinal beams, a first longitudinal beam, and a second longitudinal beam all connected to the bottom of the floor, and a front longitudinal beam located on one side of the floor. The floor has recesses along the direction opposite to the force transmission components. These recesses are used to accommodate a portion of the battery pack.

[0011] In some possible implementations, the groove is located between two adjacent floor beams.

[0012] In some possible implementations, when the force transmission component is a longitudinal beam assembly, the force transmission assembly also includes at least two third detachable connectors, and the floor has at least two fifth connection holes. The longitudinal beam assembly includes at least two third longitudinal beams, and the third longitudinal beam, the second longitudinal beam, and the first longitudinal beam correspond one-to-one.

[0013] The third longitudinal beam includes a main section and an extension section. The main section is detachably connected to the corresponding first and second longitudinal beams. The extension section is connected to the main section and extends along the direction of the main section toward the groove. The extension section has at least one sixth connecting hole, which corresponds one-to-one with the fifth connecting hole. A third detachable connector is sequentially inserted into the corresponding sixth and fifth connecting holes to detachably connect the extension section to the floor.

[0014] In some possible implementations, the vehicle body structure also includes at least one seat crossbeam, with the seat crossbeam and force transmission assembly located on opposite sides of the floor. The seat crossbeam has at least two seventh connecting holes corresponding one-to-one with the fifth connecting holes. A third detachable connector is sequentially inserted into the corresponding sixth, fifth, and seventh connecting holes to allow the extension section to be detachably connected to the floor and the seat crossbeam, respectively.

[0015] In some possible implementations, there are at least two seat crossbeams, spaced apart from each other. There are at least four third detachable connectors, at least four fifth connecting holes, and at least two sixth connecting holes on each extension segment. The third detachable connectors are sequentially inserted into the corresponding sixth, fifth, and seventh connecting holes to allow the extension segments to be detachably connected to the floor and at least two seat crossbeams, respectively.

[0016] Secondly, embodiments of this application provide a vehicle, including a vehicle body and a body structure of any of the vehicles provided in the first aspect connected to the vehicle body.

[0017] The vehicle body structure and vehicle provided in this application embodiment, wherein the vehicle body structure is provided with floor longitudinal beams and force transmission components, with the front longitudinal beams connected one-to-one with the floor longitudinal beams, and the force transmission components connected to the front longitudinal beams through the first longitudinal beam. When the vehicle collides, the collision force borne by the front longitudinal beams can be transmitted and dispersed simultaneously through the floor longitudinal beams and the force transmission components. In this way, even when the structural strength of the floor longitudinal beams is relatively low, the force transmission components can undertake part of the collision force transmission task. The floor longitudinal beams and the force transmission components work together to improve the effect and reliability of collision force dispersion, thereby achieving effective transmission and dispersion of collision force and improving the collision safety performance of the vehicle. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of this application;

[0020] Figure 2 A schematic diagram illustrating the connection between the vehicle body structure and the battery pack provided in an embodiment of this application;

[0021] Figure 3 A schematic diagram of a vehicle body structure provided in an embodiment of this application;

[0022] Figure 4 for Figure 3 An explosion diagram;

[0023] Figure 5 This is another structural schematic diagram of the vehicle body structure provided in the embodiments of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Vehicle body structure; 20. Vehicle body; 21. Wheels; 22. Front compartment structure; 23. Passenger compartment structure; 24. Rear compartment structure; 25. Battery pack; 251. Housing; 252. Battery cell module;

[0026] 100. Front longitudinal beam;

[0027] 200. Floor longitudinal beams;

[0028] 300. Force transmission component; 310. Force transmission element; 311. Third connecting hole; 312. Fourth connecting hole; 320. First longitudinal beam; 321. First connecting hole; 330. Second longitudinal beam; 331. Second connecting hole; 340. First detachable connector; 350. Second detachable connector; 360. Third longitudinal beam; 361. Main body section; 362. Extension section; 363. Sixth connecting hole; 370. Third detachable connector;

[0029] 400, Floor; 410, Groove; 420, Fifth connecting hole;

[0030] 500, Seat crossbeam; 510, Seventh connecting hole.

[0031] To facilitate understanding of the embodiments of this application, the spline curves and arrows used in the reference numerals in the accompanying drawings are explained below: the components indicated by spline curves without arrows can be solid components, that is, components with solid structures; the components indicated by spline curves with arrows can be virtual components, that is, components without solid structures; in some cases, the components indicated by spline curves with arrows can also be assemblies with solid structures or virtual structures.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the embodiments of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships (if present), are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Where there is no conflict, embodiments of this application and the various features thereof can be combined with each other, all of which are within the scope of protection of this application.

[0035] Figure 1 This is a schematic diagram of the structure of a vehicle provided in an embodiment of this application.

[0036] like Figure 1 As shown, this application embodiment provides a vehicle, including a vehicle body 20 and a body structure 10 connected to the vehicle body 20.

[0037] The vehicle body 20 can support the vehicle body structure 10 and also allow the vehicle body structure 10 to move. When a collision occurs, the vehicle body structure 10 can bear and transmit the collision force, preventing the collision force from acting directly on the vehicle body 20, thereby protecting the safety of the occupants.

[0038] It should be noted that the embodiments of this application do not limit the type of vehicle. For example, in terms of purpose, the vehicle can be a passenger car, such as a sedan, sport utility vehicle (SUV), multi-purpose vehicle (MPV, sports car, pickup truck, or bus, etc.), or a commercial vehicle, such as a truck or special vehicle (e.g., fire truck, ambulance, etc.). In terms of power type, the vehicle can be a gasoline vehicle, an electric vehicle (e.g., pure electric vehicle, plug-in hybrid electric vehicle, hybrid electric vehicle, or range-extended electric vehicle, etc.), a fuel cell vehicle, etc.

[0039] In some embodiments, the vehicle body 20 can be connected to the vehicle body structure 10 by welding, screwing, riveting, or other methods. Alternatively, a combination of the above connection methods can be used to ensure the reliability and stability of the connection.

[0040] In some embodiments, the vehicle body 20 may include a suspension structure and wheels 21. The suspension structure is connected between the vehicle body structure 10 and the wheels 21 to buffer road impacts and provide good driving comfort.

[0041] In some embodiments, the vehicle body 20 may also include components such as a front compartment structure 22 and an engine. The front compartment structure 22 may be connected to the vehicle body structure 10, and the engine may be located in the front compartment.

[0042] In some embodiments, the vehicle body 20 may further include a passenger compartment structure 23, which may be connected to the vehicle body structure 10. The passenger compartment structure 23 may contain interior components such as seats, dashboards, and door panels.

[0043] In some embodiments, the vehicle body 20 may further include a rear compartment structure 24, which is connected to the vehicle body structure 10 and can provide storage space.

[0044] Figure 2 This is a schematic diagram of a structure for connecting the vehicle body structure 10 and the battery pack 25 according to an embodiment of this application.

[0045] In some possible implementations, such as Figure 2 As shown, the vehicle body 20 may also include a battery pack 25, which may include a housing 251 and battery cell modules 252. The housing 251 is connected to the vehicle body structure 10. The battery cell modules 252 are disposed within the housing 251.

[0046] The housing 251 provides space for the cell module 252 and protects it from external impacts, vibrations and other adverse factors, ensuring the safety and stability of the cell module 252 and thus extending the service life of the battery pack 25.

[0047] In some embodiments, the housing 251 may be a metal component, such as an aluminum alloy component or a steel component, so that the housing 251 has high structural strength and collision safety performance.

[0048] In some embodiments, the cell module 252 may be a lithium-ion battery module, a lithium iron phosphate battery module, or a solid-state battery module, etc., and this application embodiment does not limit this.

[0049] In some embodiments, a plurality of battery cell modules 252 may be disposed within the housing 251 to meet the requirements of different power and driving range.

[0050] In some embodiments, the battery pack 25 may also include a battery management component (not shown in the figure), which is disposed within the housing 251 and can monitor and manage the operating status of the cell module 252.

[0051] In some embodiments, the battery pack 25 may further include a battery heat dissipation assembly (not shown), which is disposed within the housing 251 and can dissipate heat from the cell module 252. Exemplarily, the battery heat dissipation assembly may include heat sinks or heat dissipation channels.

[0052] Vehicles inevitably encounter collisions during operation. When a collision occurs, the front longitudinal beam, as the main load-bearing structure at the front of the vehicle, will bear the impact force first. Because the impact force is often instantaneous and has a large impact force, the front longitudinal beam is prone to severe deformation such as bending, breaking, or crushing under such strong external force, which will affect the structural integrity of the vehicle and may also endanger the lives of the occupants.

[0053] To address this technical problem, one related technology includes a vehicle comprising a front longitudinal beam, a floor, and a floor longitudinal beam. The floor longitudinal beam is connected to the lower part of the floor, and the front longitudinal beam is connected to the floor longitudinal beam and located on one side of the floor. When the front longitudinal beam bears a collision force, the collision force can be transferred to the floor longitudinal beam, which then further distributes these forces to other components of the vehicle. This prevents the front longitudinal beam from bearing the entire collision force alone, thereby improving the vehicle's collision safety performance.

[0054] However, in some scenarios, such as when floor longitudinal beams with lower structural strength are chosen for cost reasons, their lower structural strength (e.g., lower material strength, section modulus, or overall stiffness) makes them prone to deformation or damage after being subjected to collision forces transmitted from the front longitudinal beams. This makes it difficult to effectively transfer and disperse the collision force to other parts of the vehicle. Consequently, the collision force remains concentrated on the front and floor longitudinal beams, hindering effective force dispersion and resulting in lower vehicle collision safety performance.

[0055] Figure 3 This is a schematic diagram of a vehicle body structure 10 provided in an embodiment of this application.

[0056] In view of this, such as Figure 3 As shown, this application embodiment provides a vehicle body structure 10, including a force transmission assembly 300, at least two front longitudinal beams 100, and at least two floor longitudinal beams 200. The front longitudinal beams 100 and floor longitudinal beams 200 are connected in a one-to-one correspondence. The force transmission assembly 300 includes at least one force transmission element 310, at least two first longitudinal beams 320, and at least two second longitudinal beams 330. The first longitudinal beams 320 are connected in a one-to-one correspondence with the front longitudinal beams 100. The second longitudinal beams 330 are connected in a one-to-one correspondence with the first longitudinal beams 320. The force transmission element 310 is disposed between the corresponding first longitudinal beam 320 and second longitudinal beam 330, and the force transmission element 310 is detachably connected to each first longitudinal beam 320 and each second longitudinal beam 330.

[0057] The vehicle body structure 10 includes at least two front longitudinal beams 100 and at least two floor longitudinal beams 200, with the front longitudinal beams 100 and floor longitudinal beams 200 connected in a one-to-one correspondence to maintain the basic force transmission path in related technologies. Furthermore, by providing a force transmission component 300 connected to the front longitudinal beams 100 via a first longitudinal beam 320, the force transmission component 300 can also serve as a force transmission path.

[0058] Based on this, when a vehicle collision occurs, the impact force borne by the front longitudinal beam 100 can be simultaneously transmitted and dispersed through the floor longitudinal beam 200 and the force transmission component 300. Specifically, the impact force can be transmitted from the front longitudinal beam 100 to the floor longitudinal beam 200, and then dispersed by the floor longitudinal beam 200 to other parts of the vehicle; the impact force can also be transmitted from the front longitudinal beam 100 to the first longitudinal beam 320, and then transmitted through the force transmission component 310 to the second longitudinal beam 330, and then dispersed to other parts of the vehicle. In this way, even with the relatively low structural strength of the floor longitudinal beam 200, the force transmission component 300 can undertake part of the impact force transmission task. The floor longitudinal beam 200 and the force transmission component 300 work together to improve the effect and reliability of impact force dispersion, thereby achieving effective transmission and dispersion of impact force and improving the vehicle's collision safety performance.

[0059] In addition, since the connection between the force transmission component 310 and the first longitudinal beam 320 and the second longitudinal beam 330 is detachable, the force transmission component 310 can be replaced or maintained according to specific needs.

[0060] The number of front longitudinal beams 100 can be two or more. Correspondingly, the number of floor longitudinal beams 200, first longitudinal beams 320 and second longitudinal beams 330 are also adjusted to maintain a one-to-one connection. This configuration can adapt to vehicles with different widths and load-bearing requirements.

[0061] It should be noted that the front longitudinal beam 100, the floor longitudinal beam 200, the first longitudinal beam 320, and the second longitudinal beam 330 can all extend along or approximately along the length of the vehicle.

[0062] In some possible implementations, the force transmission member 310 has at least four snap-fit ​​protrusions (not shown in the figure), and the first longitudinal beam 320 and the second longitudinal beam 330 both have snap-fit ​​holes (not shown in the figure). The snap-fit ​​protrusions and snap-fit ​​holes are snapped together one by one, so that the force transmission member 310 can be detachably connected to the first longitudinal beam 320 and the second longitudinal beam 330 at the same time.

[0063] Alternatively, in some possible implementations, the force transmission member 310 has at least four snap-fit ​​holes (not shown in the figure), and both the first longitudinal beam 320 and the second longitudinal beam 330 have snap-fit ​​protrusions (not shown in the figure). The snap-fit ​​protrusions and snap-fit ​​holes are matched one-to-one, which can also make the force transmission member 310 detachably connected to the first longitudinal beam 320 and the second longitudinal beam 330 at the same time.

[0064] In some possible implementations, such as Figure 3 As shown, the force transmission assembly 300 may further include at least two first detachable connectors 340 and at least two second detachable connectors 350. One end of the force transmission member 310 is connected to the first longitudinal beam 320 in a one-to-one correspondence through the first detachable connector 340, and the other end of the force transmission member 310 is connected to the second longitudinal beam 330 in a one-to-one correspondence through the second detachable connectors 350.

[0065] Since the first detachable connector 340 and the second detachable connector 350 are both structurally independent connectors, the force transmission component 310 is connected to the first longitudinal beam 320 through the first detachable connector 340 and to the second longitudinal beam 330 through the second detachable connector 350. Compared with directly connecting the force transmission component 310 to the first longitudinal beam 320 and the second longitudinal beam 330 through detachable structures, it can avoid the situation where the force transmission component 310 needs to be repaired or replaced as a whole due to the deterioration or failure of the connection performance of the detachable structure.

[0066] In some embodiments, the number of the first detachable connector 340 and the number of the second detachable connector 350 can both be two or more. When the number is three or more, the stability of the force transmission member 310 connection can be improved.

[0067] It should be noted that the number of the first detachable connector 340 and the second detachable connector 350 may be the same or different.

[0068] Figure 4 for Figure 3 An explosion diagram.

[0069] In some embodiments, the first detachable connector 340 and the second detachable connector 350 can be pin connectors, with the pin connected to the pin hole, which can realize the detachable connection between the force transmission member 310 and the first longitudinal beam 320 and the second longitudinal beam 330 respectively.

[0070] Alternatively, in some embodiments, both the first detachable connector 340 and the second detachable connector 350 can be wedge-shaped connectors, and connection and separation can be achieved by wedging in and pulling out the wedge structure.

[0071] Alternatively, in some embodiments, such as Figure 4 As shown, the first longitudinal beam 320 has a first connecting hole 321, the second longitudinal beam 330 has a second connecting hole 331, and the force transmission member 310 has at least two third connecting holes 311 corresponding to the first connecting holes 321 and at least two fourth connecting holes 312 corresponding to the second connecting holes 331. The first detachable connector 340 and the second detachable connector 350 are both threaded connectors. The first detachable connector 340 is sequentially inserted into the corresponding first connecting hole 321 and third connecting hole 311 to detachably connect the first longitudinal beam 320 and the force transmission member 310. The second detachable connector 350 is sequentially inserted into the corresponding second connecting hole 331 and fourth connecting hole 312 to detachably connect the second longitudinal beam 330 and the force transmission member 310.

[0072] Since threaded connectors are mature and standardized connecting elements in existing technology, by setting both the first detachable connector 340 and the second detachable connector 350 as threaded connectors, the structure of the first detachable connector 340 and the second detachable connector 350 is simple and the manufacturing cost is low. Furthermore, the one-to-one correspondence between the first connecting hole 321 and the third connecting hole 311, and the one-to-one correspondence between the second connecting hole 331 and the fourth connecting hole 312, ensures precise positioning and uniform force distribution at each connection point, avoiding stress concentration caused by mismatched connection points, thereby improving the reliability of the force transmission component 300.

[0073] It should be noted that the first detachable connector 340 and the second detachable connector 350 can be of the same type, which simplifies component management and maintenance. Alternatively, the first detachable connector 340 and the second detachable connector 350 can be of different types, which can meet the different connection requirements at both ends of the force transmission component 310.

[0074] In some examples, the diameters of the first connecting hole 321 and the second connecting hole 331 may be the same or different. When the diameters are different, the first connecting hole 321 and the second connecting hole 331 can respectively accommodate threaded fasteners of different sizes, thereby meeting the connection requirements of different load levels.

[0075] In some examples, the first connecting hole 321 and the second connecting hole 331 can both be threaded holes, so that the threaded connector can mate with the threaded hole to make the force transmission member 310 threadedly connected to the first longitudinal beam 320 and the second longitudinal beam 330 respectively.

[0076] In some examples, reinforcing ribs (not shown in the figure) can be provided on both the first longitudinal beam 320 and the second longitudinal beam 330. Some reinforcing ribs are provided on the periphery of the first connecting hole 321 and some reinforcing ribs are provided on the periphery of the second connecting hole 331. This can improve the local strength and stiffness of the connection between the force transmission member 310 and the first longitudinal beam 320, and between the force transmission member 310 and the second longitudinal beam 330, and ensure that the hole wall will not deform or tear when subjected to a large impact force.

[0077] In some examples, both the first detachable connector 340 and the second detachable connector 350 can be socket head cap screws, headstock bolts, or Phillips head bolts, etc.

[0078] In some examples, the force transmission assembly 300 may also include multiple anti-loosening elements (not shown in the figure), with the first detachable connector 340 and the second detachable connector 350 both connected via anti-loosening elements to prevent loosening due to vibration during vehicle operation. Exemplarily, the anti-loosening elements may be spring washers, lock nuts, etc.

[0079] In some possible implementations, such as Figure 3 As shown, the force transmission component 310 is a longitudinal beam assembly, or, as... Figure 2 As shown, the force transmission element 310 is formed through the housing 251 of the battery pack 25.

[0080] This configuration allows the force transmission component 310 to be either a selectable longitudinal beam assembly or the housing 251 of the battery pack 25, making the vehicle body structure 10 versatile. Specifically, when the force transmission component 310 is the housing 251, the vehicle body structure 10 can be used for new energy vehicles. In this case, the housing 251 can accommodate the battery cell module 252, and it can also serve as a structural component to participate in the transmission of collision forces, achieving functional integration. When the force transmission component 310 is the longitudinal beam assembly, the vehicle body structure 10 can be used for traditional fuel vehicles, and the longitudinal beam assembly can be specifically used to transmit collision forces. Since the connection between the force transmission component 310 and the first longitudinal beam 320 and the second longitudinal beam 330 is detachable, during vehicle production, the housing 251 or the longitudinal beam assembly can be flexibly selected according to the needs of different vehicle models without modifying the vehicle body structure 10. This reduces production costs and development cycles, and also improves the flexibility and efficiency of the production line.

[0081] In some possible implementations, such as Figure 2 As shown, the vehicle body structure 10 also includes a floor 400, with floor longitudinal beams 200, a first longitudinal beam 320, and a second longitudinal beam 330 all connected to the bottom of the floor 400. The front longitudinal beam 100 is located on one side of the floor 400. The floor 400 has a recess 410 recessed in a direction opposite to the force transmission member 310. The recess 410 is used to accommodate part of the battery pack 25.

[0082] The floor longitudinal beam 200, the first longitudinal beam 320, and the second longitudinal beam 330 are all connected to the bottom of the floor 400, and all of them can enhance the structural strength of the floor 400. Furthermore, the floor longitudinal beams 200, 320, and 330 can disperse the impact force to the floor 400, allowing the floor 400 to bear part of the impact force, thereby improving the vehicle's collision safety performance. At the same time, since the front longitudinal beam 100 is located on one side of the floor 400, it ensures that the impact force can be effectively transferred and dispersed to the floor 400 through the front longitudinal beam 100.

[0083] Furthermore, the groove 410 provided on the floor 400 is recessed in the direction away from the force transmission member 310. When the force transmission member 310 is the housing 251 of the battery pack 25, the groove 410 can accommodate a portion of the battery pack 25. In this case, part of the battery pack 25 is embedded inside the floor 400, thus achieving embedded installation of the battery pack 25. Since the groove 410 provides a dedicated space for the battery pack 25, the battery pack 25 can be more tightly integrated with the floor 400. This reduces the impact of the overall height of the battery pack 25 on the vehicle's ground clearance, making the body structure 10 more compact and improving the space utilization efficiency of the body structure 10.

[0084] In some embodiments, the floor beam 200 can be connected to the bottom of the floor 400 by means of welding, screwing or riveting.

[0085] In some embodiments, both the first longitudinal beam 320 and the second longitudinal beam 330 can be connected to the bottom of the floor 400 by means of welding, screwing, or riveting. Alternatively, the first longitudinal beam 320 and the second longitudinal beam 330 can also adopt different connection methods, for example, the first longitudinal beam 320 can be welded while the second longitudinal beam 330 can be screwed.

[0086] In some embodiments, the groove 410 can be a regular shape such as a rectangle, circle, or ellipse, or it can be an irregular shape.

[0087] In some embodiments, the recess 410 may be provided in the central region, front region or rear region of the floor 400 to accommodate different battery pack 25 arrangement schemes and vehicle center of gravity distribution requirements.

[0088] In some embodiments, the groove 410 is located between two adjacent floor beams 200.

[0089] Since the recess 410 is located between two adjacent floor longitudinal beams 200, and the battery pack 25 within the recess 410 is also located between two adjacent floor longitudinal beams 200, the two adjacent floor longitudinal beams 200 can physically protect the battery pack 25 from both sides. When the vehicle is subjected to external impact or collision, the floor longitudinal beams 200 first absorb the impact force, effectively preventing damage to the battery pack 25 from external impact. Simultaneously, because the battery pack 25 is surrounded and protected by the floor longitudinal beams 200, the overall appearance of the vehicle chassis is more regular and unified. The continuous structure of the floor longitudinal beams 200 conceals the exposed portion of the battery pack 25, avoiding visual disharmony caused by the protruding battery pack 25 in the body structure 10, thereby improving the aesthetics of the body structure 10. Furthermore, this arrangement can fully utilize the space between the floor longitudinal beams 200, making the installation of the battery pack 25 more compact and reasonable, thus improving the space utilization rate of the body structure 10.

[0090] The number of grooves 410 can be one or more. When there are multiple grooves 410, the multiple grooves 410 can accommodate different parts of the battery pack 25.

[0091] In some possible implementations, such as Figure 3As shown, when the force transmission component 310 is a longitudinal beam group, the longitudinal beam group may include at least two third longitudinal beams 360, and the third longitudinal beam 360, the second longitudinal beam 330, and the first longitudinal beam 320 correspond one-to-one. In this way, the corresponding third longitudinal beam 360, second longitudinal beam 330, and first longitudinal beam 320 can form multiple force transmission paths of at least two, which can further improve the dispersion effect of the vehicle body structure 10 on the collision force, thereby further improving the collision safety performance of the vehicle.

[0092] In some possible implementations, such as Figure 3 As shown, when the force transmission component 310 is a longitudinal beam assembly, the force transmission assembly 300 also includes at least two third detachable connectors 370, such as... Figure 4 As shown, the floor 400 has at least two fifth connection holes 420.

[0093] Among them, such as Figure 4 As shown, the third longitudinal beam 360 may include a main section 361 and an extension section 362. The main section 361 is detachably connected to the corresponding first longitudinal beam 320 and second longitudinal beam 330, respectively. The extension section 362 is connected to the main section 361 and extends along the main section 361 toward the groove 410. The extension section 362 has at least one sixth connecting hole 363, which corresponds one-to-one with the fifth connecting hole 420. A third detachable connector 370 is sequentially inserted into the corresponding sixth connecting hole 363 and fifth connecting hole 420 to detachably connect the extension section 362 to the floor 400.

[0094] The main body segment 361 is detachably connected to the corresponding first longitudinal beam 320 and second longitudinal beam 330. The extension segment 362 extends along the main body segment 361 toward the groove 410 and is connected to the floor 400 through the third detachable connector 370. Compared with the two-point connection through the main body segment 361 alone, this three-point connection structure can form a more stable triangular support structure, thereby improving the stability of the third longitudinal beam 360 connection. This allows the longitudinal beam assembly to better withstand and transmit the collision force during a vehicle collision, avoiding force transmission failure due to unstable connection.

[0095] Furthermore, by directly connecting the extension section 362 to the floor 400, the collision force can be transferred from the front longitudinal beam 100 through the main body section 361 of the first longitudinal beam 320 and the third longitudinal beam 360, and then directly to the floor 400 through the extension section 362. This adds an extra force transmission path, making the collision force more fully and effectively dispersed, thereby further improving the collision safety performance of the vehicle body structure 10.

[0096] Furthermore, since the connection between the extension section 362 and the floor 400 is detachable, the stability of the third longitudinal beam 360 connection can be improved and an additional force transmission path can be added without affecting the universality of the vehicle body structure 10.

[0097] In some embodiments, the shape of the extension 362 can be a regular shape such as an L-shape or a triangle, or it can be an irregular shape.

[0098] In some embodiments, the extension 362 may be perpendicular to the main body 361. Alternatively, the extension 362 may be inclined relative to the main body 361.

[0099] In some embodiments, the third detachable connector 370 may be a threaded connector, a snap-fit ​​connector, or a riveted connector, etc.

[0100] In some embodiments, either the fifth connecting hole 420 or the sixth connecting hole 363 can be a threaded hole. Alternatively, the sixth connecting hole 363 can be a through hole, and the fifth connecting hole 420 can be a threaded hole.

[0101] In some embodiments, the number of sixth connection holes 363 on the extension 362 may be one or more, and correspondingly, a corresponding number of fifth connection holes 420 are provided on the floor 400.

[0102] In some embodiments, the main body segment 361 and the extension segment 362 can be integrally formed or separately formed. When the main body segment 361 and the extension segment 362 are separately formed, the main body segment 361 can be connected to the extension segment 362 by welding, screwing, or other means.

[0103] Figure 5 This is another structural schematic diagram of the vehicle body structure 10 provided in the embodiments of this application.

[0104] In some possible implementations, such as Figure 5 As shown, the vehicle body structure 10 also includes at least one seat crossbeam 500, with the seat crossbeam 500 and the force transmission assembly 300 located on opposite sides of the floor 400. The seat crossbeam 500 has at least two seventh connecting holes 510 corresponding one-to-one with the fifth connecting hole 420. A third detachable connector 370 is sequentially inserted into the corresponding sixth connecting hole 363, fifth connecting hole 420, and seventh connecting hole 510, so that the extension 362 is detachably connected to the floor 400 and the seat crossbeam 500, respectively.

[0105] Specifically, by setting seat crossbeams 500 and force transmission components 300 on opposite sides of the floor 400, and using the third detachable connector 370 to sequentially insert the extension section 362 into the sixth connecting hole 363, the fifth connecting hole 420, and the seventh connecting hole 510, the extension section 362 can be detachably connected to both the floor 400 and the seat crossbeam 500. This allows the floor 400 to support the extension section 362, and also allows the seat crossbeam 500 to provide additional support for the extension section 362, thereby enhancing the connection stability of the third longitudinal beam 360.

[0106] Furthermore, when a collision occurs, the collision force can be transmitted to the seat crossbeam 500 through the extension 362 of the third longitudinal beam 360. The seat crossbeam 500, as an additional force transmission path, can further disperse and absorb the collision force, thereby further improving the collision force dispersion effect of the vehicle body structure 10 and thus enhancing the vehicle's collision safety performance.

[0107] It should be noted that the seat crossbeam 500 can extend along or approximately along the width of the vehicle.

[0108] In some embodiments, the number of seventh connection holes 510 may be one or more.

[0109] In some embodiments, the seventh connecting hole 510 is a threaded hole, while the fifth connecting hole 420 can be a threaded hole or a through hole, and the sixth connecting hole 363 can be a threaded hole or a through hole.

[0110] In some embodiments, the seat crossbeam 500 may be perpendicular to the third longitudinal beam 360, or the seat crossbeam 500 may be inclined relative to the third longitudinal beam 360.

[0111] In some possible implementations, there are at least two seat crossbeams 500, spaced apart from each other. There are at least four third detachable connectors 370, at least four fifth connecting holes 420, and at least two sixth connecting holes 363 on each extension segment 362. The third detachable connectors 370 are sequentially inserted into the corresponding sixth connecting holes 363, fifth connecting holes 420, and seventh connecting holes 510, so that the extension segments 362 are detachably connected to the floor 400 and at least two seat crossbeams 500, respectively.

[0112] With this configuration, the extension section 362 can be connected to the floor 400 and at least two seat crossbeams 500 simultaneously via multiple third detachable connectors 370. Compared to connecting to only a single seat crossbeam 500, the increased number of connection points allows the connection structure to form a more stable multi-point support, thereby further improving the stability of the third longitudinal beam 360 connection.

[0113] Furthermore, when a vehicle collides, since the extension section 362 establishes a force transmission path with at least two seat crossbeams 500, the collision force can be simultaneously transmitted to multiple seat crossbeams 500 through the extension section 362. This allows the collision force to be distributed and transmitted over a wider range. Compared to a single force transmission path, multi-path force transmission can more effectively reduce the collision load borne by a single structural component, thereby improving the vehicle's collision safety performance.

[0114] The number of seat crossbeams 500 can be two or more.

[0115] It should be understood that the embodiments of this application are not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A vehicle body structure, characterized in that, include: At least two front longitudinal beams (100); At least two floor longitudinal beams (200), with the front longitudinal beam (100) and the floor longitudinal beam (200) connected in a one-to-one correspondence; The force transmission assembly (300) includes at least one force transmission element (310), at least two first longitudinal beams (320) and at least two second longitudinal beams (330). The first longitudinal beams (320) are connected to the front longitudinal beams (100) in a one-to-one correspondence. The second longitudinal beams (330) are connected to the first longitudinal beams (320) in a one-to-one correspondence. The force transmission element (310) is disposed between the corresponding first longitudinal beams (320) and second longitudinal beams (330). The force transmission element (310) is detachably connected to each of the first longitudinal beams (320) and each of the second longitudinal beams (330).

2. The vehicle body structure according to claim 1, characterized in that, The force transmission component (300) further includes at least two first detachable connectors (340) and at least two second detachable connectors (350). One end of the force transmission component (310) is connected to the first longitudinal beam (320) through the first detachable connector (340), and the other end of the force transmission component (310) is connected to the second longitudinal beam (330) through the second detachable connector (350).

3. The vehicle body structure according to claim 2, characterized in that, The first longitudinal beam (320) has a first connecting hole (321), the second longitudinal beam (330) has a second connecting hole (331), and the force transmission member (310) has at least two third connecting holes (311) corresponding to the first connecting hole (321) and at least two fourth connecting holes (312) corresponding to the second connecting hole (331). The first detachable connector (340) and the second detachable connector (350) are both threaded connectors. The first detachable connector (340) is inserted into the corresponding first connecting hole (321) and the third connecting hole (311) in sequence to detachably connect the first longitudinal beam (320) and the force transmission member (310). The second detachable connector (350) is inserted into the corresponding second connecting hole (331) and the fourth connecting hole (312) in sequence to detachably connect the second longitudinal beam (330) and the force transmission member (310).

4. The vehicle body structure according to any one of claims 1-3, characterized in that, The force transmission element (310) is a longitudinal beam assembly, or the force transmission element (310) is formed through the housing (251) of the battery pack (25).

5. The vehicle body structure according to claim 4, characterized in that, It also includes a floor (400), the floor longitudinal beam (200), the first longitudinal beam (320) and the second longitudinal beam (330) are all connected to the bottom of the floor (400), the front longitudinal beam (100) is located on one side of the floor (400), and the floor (400) has a groove (410) recessed in a direction away from the force transmission member (310). The groove (410) is used to accommodate part of the battery pack (25).

6. The vehicle body structure according to claim 5, characterized in that, The groove (410) is located between two adjacent floor beams (200).

7. The vehicle body structure according to claim 6, characterized in that, When the force transmission component (310) is a longitudinal beam assembly, the force transmission component (300) further includes at least two third detachable connectors (370), the floor (400) has at least two fifth connecting holes (420), the longitudinal beam assembly includes at least two third longitudinal beams (360), the third longitudinal beam (360), the second longitudinal beam (330) and the first longitudinal beam (320) correspond one-to-one, and the third longitudinal beam (360) includes: The main body segment (361) is detachably connected to the corresponding first longitudinal beam (320) and second longitudinal beam (330); An extension segment (362) is connected to the main body segment (361). The extension segment (362) extends along the main body segment (361) toward the groove (410). The extension segment (362) has at least one sixth connecting hole (363). The sixth connecting hole (363) corresponds one-to-one with the fifth connecting hole (420). The third detachable connector (370) is sequentially inserted into the corresponding sixth connecting hole (363) and the fifth connecting hole (420) to detachably connect the extension segment (362) to the floor (400).

8. The vehicle body structure according to claim 7, characterized in that, It also includes at least one seat crossbeam (500), the seat crossbeam (500) and the force transmission assembly (300) are respectively located on opposite sides of the floor (400), the seat crossbeam (500) has at least two seventh connecting holes (510) corresponding one-to-one with the fifth connecting hole (420), the third detachable connector (370) is sequentially inserted into the corresponding sixth connecting hole (363), the fifth connecting hole (420) and the seventh connecting hole (510) so that the extension (362) is detachably connected to the floor (400) and the seat crossbeam (500) respectively.

9. The vehicle body structure according to claim 8, characterized in that, The number of seat crossbeams (500) is at least two, and each seat crossbeam (500) is spaced apart; The number of the third detachable connectors (370) is at least four, the number of the fifth connecting holes (420) is at least four, and the number of the sixth connecting holes (363) on each of the extension segments (362) is at least two. The third detachable connectors (370) are sequentially inserted into the corresponding sixth connecting holes (363), the fifth connecting holes (420) and the seventh connecting holes (510) so that the extension segments (362) are detachably connected to the floor (400) and at least two of the seat crossbeams (500).

10. A vehicle, characterized in that, Includes a vehicle body (20) and a vehicle body structure (10) of any one of claims 1-9 connected to the vehicle body (20).

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