Automobile body frame structure and automobile
By designing a detachable and connected body frame structure, the problem of low sharing of frame parts between fuel models and hybrid models is solved, and the maximum sharing of parts and the adaptation of space requirements of different models is achieved, saving manufacturing costs.
Patent Information
- Application Number
- CN202420399197.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-01
AI Technical Summary
There are differences in the sharing of the frame parts of the lower body of fuel models and hybrid models, making it difficult to maximize sharing.
A body frame structure is designed, by breaking the connection between the front floor longitudinal beam and the front longitudinal beam, the front floor longitudinal beam and the torque box form a detachable connection, and adjusting the connection point between the front floor longitudinal beam and the torque box to meet the space needs of different models.
It improves the sharing of body frame parts of fuel models and hybrid models, saves manufacturing costs, and can adapt to the installation needs of exhaust pipes and battery packs in different models.
Smart Images
Figure CN222572384U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle body frame structure and a vehicle. Background Art
[0002] In order to meet consumers' diverse and differentiated product demands, it is usually necessary to develop fuel vehicles and hybrid vehicles at the same time during the vehicle research and development and design process.
[0003] First, since hybrid models have added components such as hybrid systems and power batteries compared to fuel models, their curb weight is heavier. In order to achieve the vehicle collision performance requirements of both fuel and hybrid models, higher requirements are usually placed on the lower body frame design of hybrid models. There are significant differences in the vehicle collision performance requirements between hybrid models and fuel models. Secondly, compared with fuel models, hybrid models retain the original fuel vehicle engine in terms of layout while increasing the space requirements for power batteries. There are also significant differences in the lower body frame between hybrid models and fuel models.
[0004] Therefore, how to ensure maximum sharing of lower body frame parts between fuel vehicles and hybrid vehicles on the basis of meeting the performance optimization design has become an urgent problem to be solved in this field. Utility Model Content
[0005] The embodiments of the utility model provide a vehicle body frame structure and a vehicle to solve the problem that the frame parts of a fuel vehicle model and a hybrid vehicle model cannot be shared to the maximum extent.
[0006] The embodiment of the utility model provides a vehicle body frame structure, comprising a torsion box assembly arranged along the width direction of the vehicle body, a front longitudinal beam assembly and a front floor longitudinal beam arranged along the length direction of the vehicle body;
[0007] The rear end of the front longitudinal beam assembly is connected to the torsion box assembly;
[0008] The front end of the front floor longitudinal beam is detachably connected to the torsion box assembly, so that the connection point between the front end of the front floor longitudinal beam and the torsion box assembly is adjustable along the width direction of the vehicle body.
[0009] Preferably, the vehicle body frame structure further comprises a first connecting member, and the first connecting member is arranged on the front floor longitudinal beam;
[0010] The front end of the first connecting member is detachably connected to the torsion box assembly, so that the connection point between the front end of the front floor longitudinal beam and the torsion box assembly is adjustable along the width direction of the vehicle body.
[0011] Preferably, the torque box assembly comprises two torque boxes spaced apart in the width direction of the vehicle body;
[0012] Each of the torsion boxes is connected to the rear end of a front longitudinal beam assembly, and each of the torsion boxes is detachably connected to the front end of the front floor longitudinal beam.
[0013] Preferably, the torque box assembly further comprises a second connecting member arranged along the width direction of the vehicle body, and two ends of the second connecting member are respectively connected to the two torque boxes through a mounting bracket.
[0014] Preferably, the front longitudinal beam assembly includes a front longitudinal beam arranged along the length direction of the vehicle body;
[0015] The rear end of the front longitudinal beam is connected to the torsion box assembly through a reinforcement structure.
[0016] Preferably, the vehicle body frame structure further includes a door sill assembly;
[0017] The door sill assembly is arranged along the length direction of the vehicle body, and the front end of the door sill assembly is connected to one end of the torque box assembly.
[0018] Preferably, the door sill assembly comprises an inner door sill arranged along the length direction of the vehicle body, and the front end of the inner door sill is connected to one end of the torque box assembly;
[0019] Alternatively, the door sill assembly includes an inner door sill and a first reinforcement member arranged along the length direction of the vehicle body, the front end of the inner door sill is connected to one end of the torque box assembly, and the first reinforcement member is connected to the inner door sill.
[0020] Preferably, a first groove opening outward is formed on the inner door sill, and the first reinforcement member is arranged in the first groove;
[0021] The first reinforcement member includes a first reinforcement body and a first reinforcement rib disposed in the first reinforcement body, wherein the first reinforcement rib divides the first reinforcement body to form at least two first reinforcement cavities.
[0022] Preferably, the vehicle body frame structure further comprises a front floor panel and a front seat crossbeam;
[0023] Two side edges of the front floor panel are connected to the door sill assembly;
[0024] The front row seat cross beam is arranged at a side surface of the front floor panel along the width direction of the vehicle body, and both ends of the front row seat cross beam are connected to the door sill assembly.
[0025] Preferably, a second groove opening downward is formed on the front seat cross beam;
[0026] The vehicle body frame structure further includes a second reinforcement member disposed in the second groove, wherein the second reinforcement member is connected to two side walls of the front seat cross beam.
[0027] An embodiment of the utility model further provides an automobile, comprising any one of the above-mentioned vehicle body frame structures.
[0028] The vehicle body frame structure and automobile provided by the embodiment of the utility model interrupt the connection between the front floor longitudinal beam and the front longitudinal beam, so that the front floor longitudinal beam and the torsion box form a detachable connection, so that the front floor longitudinal beam is only used as a mounting structure for parts such as battery packs, and not as a force transmission path for the front longitudinal beam. According to the different requirements of fuel vehicles and hybrid vehicles for the lower body space layout, the connection point between the front floor longitudinal beam and the torsion box can be adjusted along the width direction of the vehicle body, so that the accommodation space between the two front floor longitudinal beams on the left and right sides of the vehicle body is also adjusted with the adjustment of the connection point between the front floor longitudinal beam and the torsion box, so that the accommodation space can not only meet the exhaust pipe layout requirements in fuel vehicles, but also meet the installation requirements of battery packs of different sizes in pure electric or hybrid vehicles, thereby improving the commonality rate of lower body frame parts between fuel vehicles and hybrid vehicles and saving manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0030] Figure 1 is a bottom view of a vehicle body frame structure in one embodiment of the utility model;
[0031] Figure 2 It is a structural schematic diagram of the front floor longitudinal beam in one embodiment of the utility model;
[0032] Figure 3 It is a structural schematic diagram of a torque box assembly in one embodiment of the utility model;
[0033] Figure 4 It is another structural schematic diagram of a torque box assembly in one embodiment of the utility model;
[0034] Figure 5 It is a structural schematic diagram of a front longitudinal beam assembly in one embodiment of the utility model;
[0035] Figure 6 It is a schematic cross-sectional structural diagram of an inner door sill in one embodiment of the utility model;
[0036] Figure 7 It is a schematic cross-sectional view of the front seat cross beam in one embodiment of the utility model.
[0037] In the figure: 1. Torque box assembly; 11. Torque box; 12. Second connecting member; 13. Mounting bracket; 2. Front longitudinal beam assembly; 21. Front longitudinal beam; 22. Reinforcement structure; 3. Front floor longitudinal beam; 4. First connecting member; 5. Door sill assembly; 51. Inner door sill; 511. First reinforcement; 6. Front floor panel; 7. Front seat cross beam; 71. Second reinforcement. DETAILED DESCRIPTION
[0038] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0041] The utility model embodiment provides a vehicle body frame structure, such as Figure 1 As shown, the vehicle body frame structure includes a torsion box assembly 1 arranged along the width direction of the vehicle body, a front longitudinal beam assembly 2 and a front floor longitudinal beam 3 arranged along the length direction of the vehicle body; the rear end of the front longitudinal beam assembly 2 is connected to the torsion box assembly 1; the front end of the front floor longitudinal beam 3 is detachably connected to the torsion box assembly 1, so that the connection point between the front end of the front floor longitudinal beam 3 and the torsion box assembly 1 is adjustable along the width direction of the vehicle body.
[0042] As an example, the vehicle body frame structure includes a torsion box assembly 1 arranged along the width direction of the vehicle body, a front longitudinal beam assembly 2 arranged along the length direction of the vehicle body, and two front floor longitudinal beams 3 arranged along the length direction of the vehicle body, and the two front floor longitudinal beams 3 are arranged at intervals in the width direction of the vehicle body. Figure 1 As shown, the torsion box assembly 1 includes two torsion boxes 11 arranged along the width direction of the vehicle body, and the front longitudinal beam assembly 2 includes two front longitudinal beams 21 arranged along the length direction of the vehicle body, and the two front longitudinal beams 21 are arranged at intervals in the width direction of the vehicle body. Taking the right side of the vehicle body as an example, the rear end of the front longitudinal beam 21 is welded to a torsion box 11, and the front end of the front floor longitudinal beam 3 is detachably connected to the torsion box 11 through bolts, so that the connection point between the front floor longitudinal beam 3 on the right side of the vehicle body and the torsion box 11 can be adjusted along the width direction of the vehicle body; similarly, the connection point between the front floor longitudinal beam 3 on the left side of the vehicle body and the torsion box 11 can be adjusted along the width direction of the vehicle body.
[0043] In this example, the connection between the front floor longitudinal beam 3 and the front longitudinal beam 21 is interrupted, so that the front floor longitudinal beam 3 and the torsion box 11 form a detachable connection, so that the front floor longitudinal beam 3 is only used as a mounting structure for parts such as battery packs, and not as a force transmission path for the front longitudinal beam 21. According to the different requirements of fuel-powered vehicles and hybrid vehicles for the lower body space layout, the connection point between the front floor longitudinal beam 3 and the torsion box 11 can be adjusted along the width direction of the vehicle body, so that the accommodation space between the two front floor longitudinal beams 3 is also adjusted with the adjustment of the connection point between the front floor longitudinal beam 3 and the torsion box 11, so that the accommodation space can meet the exhaust pipe layout requirements of fuel-powered vehicles and the installation requirements of battery packs of different sizes in pure electric or hybrid vehicles, thereby improving the commonality rate of lower body frame parts between fuel-powered vehicles and hybrid vehicles and saving manufacturing costs.
[0044] In one embodiment, if Figure 2 As shown, the vehicle body frame structure also includes a first connecting member 4, which is arranged on the front floor longitudinal beam 3; the front end of the first connecting member 4 is detachably connected to the torsion box assembly 1, so that the connection point between the front end of the front floor longitudinal beam 3 and the torsion box assembly 1 is adjustable along the width direction of the vehicle body.
[0045] As an example, the vehicle body frame structure further includes two first connecting members 4 along the length direction of the vehicle body, and the rear end of each first connecting member 4 is arranged on the front floor longitudinal beam 3, and can be specifically welded to the front floor longitudinal beam 3. Taking the right side of the vehicle body as an example, the first connecting member 4 is arranged at the front end of the front floor longitudinal beam 3, and the front end of the first connecting member 4 can be detachably connected with different screw openings on the torque box 11 according to the space requirements of different vehicle models, so that the connection point between the front end of the front floor longitudinal beam 3 and the torque box assembly 1 can be adjusted along the width direction of the vehicle body. Similarly, the first connecting member 4 can also make the connection point between the front floor longitudinal beam 3 and the torque box 11 on the left side of the vehicle body adjustable along the width direction of the vehicle body.
[0046] In one embodiment, if Figure 3 As shown, the torque box assembly 1 includes two torque boxes 11 spaced apart in the width direction of the vehicle body; each torque box 11 is connected to the rear end of a front longitudinal beam assembly 2, and each torque box 11 is detachably connected to the front end of the front floor longitudinal beam 3.
[0047] As an example, in some models with low requirements for collision performance, such as fuel-powered models, the torque box assembly 1 may only include two torque boxes 11 spaced apart in the width direction of the vehicle body. Each torque box 11 is connected to the rear end of a front longitudinal beam assembly 2, and each torque box 11 is detachably connected to the front end of the front floor longitudinal beam 3.
[0048] In another embodiment, if Figure 4 As shown, the torque box assembly 1 further includes a second connecting member 12 arranged along the width direction of the vehicle body, and both ends of the second connecting member 12 are connected to the two torque boxes 11 through a mounting bracket 13 respectively.
[0049] As an example, in some models with higher requirements on collision performance, such as hybrid models, the torque box assembly 1 includes a second connecting member 12 and two torque boxes 11 spaced apart in the width direction of the vehicle body. Each torque box 11 is connected to the rear end of a front longitudinal beam assembly 2, and each torque box 11 is detachably connected to the front end of the front floor longitudinal beam 3. The second connecting member 12 is arranged along the width direction of the vehicle body, and the first end of the second connecting member 12 is screwed to a torque box 11 through a mounting bracket 13, and the second end of the second connecting member 12 is screwed to another torque box 11 through another mounting bracket 13. In different vehicle models, second connecting members 12 of different lengths can be used to detachably connect the two torque boxes 11, or the second connecting member 12 can be connected to different screwing positions on the torque box 11, so that the spacing distance between the two torque boxes 11 is different, and the spacing distance between the two front floor longitudinal beams 3 is also different, so that the accommodation space between the two front floor longitudinal beams 3 can not only meet the exhaust pipe layout requirements in fuel vehicles, but also meet the installation requirements of battery packs of different sizes in pure electric or hybrid vehicles. In this example, by adding the second connecting member 12 between the two torque boxes 11, a through design can be formed between the two torque boxes 11, which meets the hybrid vehicle model and other models with higher collision performance requirements, and the load requirements of the vehicle body frame structure under frontal and side collision conditions.
[0050] In one embodiment, the front longitudinal beam assembly 2 includes a front longitudinal beam 21 arranged along the length direction of the vehicle body; the rear end of the front longitudinal beam 21 is connected to the torque box assembly 1 through a reinforcement structure 22 .
[0051] As an example, Figure 5As shown, the front longitudinal beam assembly 2 includes two front longitudinal beams 21 arranged along the length direction of the vehicle body, and the two front longitudinal beams 21 are arranged at intervals in the width direction of the vehicle body. In some vehicle models with higher requirements for collision performance, such as hybrid vehicle models, a reinforcing structure 22 is provided at the connection between the rear end of each front longitudinal beam 21 and the torsion box 11. The reinforcing structure 22 can be a reinforcing rib arranged at the rear end of the front longitudinal beam 21, or a reinforcing plate arranged in the front longitudinal beam 21, or a reinforcing material arranged at the rear end of the front longitudinal beam 21 and different from the front end of the front longitudinal beam 21. By arranging the reinforcing structure 22 at the rear end of the front longitudinal beam 21, the mechanical strength of the connection between the front longitudinal beam 21 and the torsion box 11 can be increased, and the load capacity of the vehicle body frame structure under frontal collision conditions can be enhanced.
[0052] In one embodiment, if Figure 1 As shown, the vehicle body frame structure further includes a door sill assembly 5 arranged along the length direction of the vehicle body; the front end of the door sill assembly 5 is connected to one end of the torque box assembly 1 .
[0053] As an example, the vehicle body frame structure further includes a threshold assembly 5 arranged along the length direction of the vehicle body, and the front end of the threshold assembly 5 is welded to one end of the torque box assembly 1. The rear end of the front longitudinal beam assembly 2 is welded to the torque box assembly 1, and the front end of the threshold assembly 5 is welded to the torque box assembly 1, together forming a collision force transmission structure under a frontal collision condition, and the load during a frontal collision is transmitted in sequence through the front longitudinal beam assembly 2, the torque box assembly 1 and the threshold assembly 5, and the front floor longitudinal beam 3 is decoupled from the force transmission structure and is only used as a mounting structure for parts such as a battery pack, so as to meet the installation requirements of different vehicle models.
[0054] In one embodiment, if Figure 6 As shown, the threshold assembly 5 includes an inner threshold 51 arranged along the length direction of the vehicle body, and the front end of the inner threshold 51 is connected to one end of the torque box assembly 1; or, the threshold assembly 5 includes an inner threshold 51 and a first reinforcement 511 arranged along the length direction of the vehicle body, the front end of the inner threshold 51 is connected to one end of the torque box assembly 1, and the first reinforcement 511 is connected to the inner threshold 51.
[0055] As an example, the threshold assembly 5 includes two inner thresholds 51 arranged along the length direction of the vehicle body, the two inner thresholds 51 are arranged at intervals in the width direction of the vehicle body, and the front ends of the inner thresholds 51 are connected to one end of the torque box 11. The inner thresholds 51 are used to improve the load-bearing and impact resistance of the threshold assembly 5.
[0056] As another example, in some vehicle models with higher requirements for collision performance, such as hybrid vehicle models, the sill assembly 5 includes two inner sills 51 arranged along the vehicle body length direction and a first reinforcing member 511 connected to the inner sill 51. The first reinforcing member 511 is welded inside the inner sill 51 to enhance the mechanical strength of the inner sill 51, further improving the load-bearing and impact resistance capabilities of the sill assembly 5 to meet the side collision performance requirements of hybrid vehicle models and the like.
[0057] In one embodiment, as Figure 6 shown, a first groove with an outward opening is formed on the inner sill 51, and the first reinforcing member 511 is arranged in the first groove; the first reinforcing member 511 includes a first reinforcing main body and first reinforcing ribs arranged inside the first reinforcing main body. The first reinforcing ribs divide the first reinforcing main body to form at least two first reinforcing cavities.
[0058] As an example, the inner sill 51 is bent to form a first groove with an outward opening. When the first reinforcing member 511 is provided on the inner sill 51, the first reinforcing member 511 is connected to the groove bottom surface of the first groove. The first reinforcing member 511 includes a first reinforcing main body and several first reinforcing ribs arranged inside the first reinforcing main body. The first reinforcing main body is a cavity structure arranged along the vehicle body length direction. The first reinforcing ribs divide the first reinforcing main body so that the cross-section of the first reinforcing main body in the vehicle body width direction is in the shape of a Chinese character 'Ri' or 'Tian' or a combination of 'Ri' and 'Tian', forming at least two first reinforcing cavities. By arranging the first reinforcing cavities inside the first reinforcing member 511, it can better meet the design requirements for the collision load performance of vehicle models with a larger weight, such as hybrid vehicle models, and improve the load energy absorption capacity of the sill assembly 5 during a collision.
[0059] In one embodiment, as Figure 1 shown, the vehicle body frame structure further includes a front floor panel 6 and a front row seat crossbeam 7; two side edges of the front floor panel 6 are connected to the sill assembly 5; the front row seat crossbeam 7 is arranged on one side surface of the front floor panel 6 along the vehicle body width direction; both ends of the front row seat crossbeam 7 are connected to the sill assembly 5.
[0060] As an example, the vehicle body frame structure also includes a front floor panel 6, the front end of the front floor panel 6 is used for welding with the front cabin assembly formed by the front longitudinal beam assembly 2 and the torsion box assembly 1, and the rear end of the front floor panel 6 is used for welding with the rear floor panel assembly, and the left and right sides of the front floor panel 6 are connected to the threshold assembly 5. The front floor panel 6 is arranged above the front floor longitudinal beam 3, and is used to cooperate with the front floor longitudinal beam 3 and other parts, carry the front seats, and connect the front cabin and the rear floor panel assembly. The vehicle body frame structure also includes two front seat cross beams 7. Each front seat cross beam 7 is arranged on the upper side of the front floor panel 6 along the width direction of the vehicle body, and the two ends of each front seat cross beam 7 are respectively connected to the inner thresholds 51 on the left and right sides of the vehicle body. The front seat cross beam 7 serves as the plate reinforcement structure 22 of the front floor panel 6, which can improve the mechanical strength of the front floor panel 6 and enhance the load capacity of the vehicle body frame structure under side collision conditions.
[0061] In one embodiment, if Figure 7 As shown, a second groove opening downward is formed on the front seat cross beam 7; the vehicle body frame structure also includes a second reinforcement member 71 arranged in the second groove, and the second reinforcement member 71 is connected to the two side walls of the front seat cross beam 7.
[0062] As an example, each front seat crossbeam 7 is bent to form a second groove opening downward, which is used to improve the mechanical strength of the front seat crossbeam 7, thereby improving the load-bearing capacity of the front floor panel 6 and enhancing the load capacity of the vehicle body frame structure under side collision conditions. In some vehicle models with higher requirements for collision performance, such as hybrid vehicle models, a second reinforcement member 71 is also provided in the front seat crossbeam 7, and the second reinforcement member 71 is welded to the second groove. Specifically, the second reinforcement member 71 can be a reinforcement plate connecting the left and right inner walls of the second groove, and cooperates with the groove bottom of the second groove to form a cavity structure. By arranging the second reinforcement member 71 in the second groove, it is possible to meet the design requirements of collision load performance for vehicles with heavier weights, such as hybrid vehicles, and further improve the load energy absorption capacity of the threshold assembly 5 when a side collision occurs.
[0063] An embodiment of the utility model provides a car, comprising the vehicle body frame structure in any one of the above embodiments.
[0064] As an example, the automobile includes the body frame structure in any of the above examples. The body frame structure interrupts the connection between the front floor longitudinal beam 3 and the front longitudinal beam 21, so that the front floor longitudinal beam 3 and the torsion box 11 form a detachable connection, so that the front floor longitudinal beam 3 is only used as a mounting structure for parts such as a battery pack, and not as a force transmission path for the front longitudinal beam 21. According to the different requirements of fuel vehicles and hybrid vehicles for the lower body space layout, the connection point between the front floor longitudinal beam 3 and the torsion box 11 can be adjusted along the width direction of the vehicle body, so that the accommodation space between the two front floor longitudinal beams 3 on the left and right sides of the vehicle body is also adjusted with the adjustment of the connection point between the front floor longitudinal beam 3 and the torsion box 11, so that the accommodation space can not only meet the exhaust pipe layout requirements in fuel vehicles, but also meet the installation requirements of battery packs of different sizes in pure electric or hybrid vehicles, thereby improving the commonality rate of lower body frame parts between fuel vehicles and hybrid vehicles and saving manufacturing costs.
[0065] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.
Claims
1. A vehicle body frame structure, characterized in that: It includes a torsion box assembly arranged along the width direction of the vehicle body, a front longitudinal beam assembly and a front floor longitudinal beam arranged along the length direction of the vehicle body; The rear end of the front longitudinal beam assembly is connected to the torsion box assembly; The front end of the front floor longitudinal beam is detachably connected to the torsion box assembly, so that the connection point between the front end of the front floor longitudinal beam and the torsion box assembly is adjustable along the width direction of the vehicle body.
2. The vehicle body frame structure according to claim 1, characterized in that: The vehicle body frame structure further includes a first connecting member, which is disposed on the front floor longitudinal beam; The front end of the first connecting member is detachably connected to the torsion box assembly, so that the connection point between the front end of the front floor longitudinal beam and the torsion box assembly is adjustable along the width direction of the vehicle body.
3. The vehicle body frame structure according to claim 1, characterized in that: The torque box assembly includes two torque boxes spaced apart in the width direction of the vehicle body; Each of the torsion boxes is connected to the rear end of a front longitudinal beam assembly, and each of the torsion boxes is detachably connected to the front end of the front floor longitudinal beam.
4. The vehicle body frame structure according to claim 3, characterized in that: The torque box assembly also includes a second connecting member arranged along the width direction of the vehicle body, and two ends of the second connecting member are respectively connected to the two torque boxes through a mounting bracket.
5. The vehicle body frame structure according to claim 1, characterized in that: The front longitudinal beam assembly includes a front longitudinal beam arranged along the length direction of the vehicle body; The rear end of the front longitudinal beam is connected to the torsion box assembly through a reinforcement structure.
6. The vehicle body frame structure according to claim 1, characterized in that: The vehicle body frame structure also includes a door sill assembly; The door sill assembly is arranged along the length direction of the vehicle body, and the front end of the door sill assembly is connected to one end of the torque box assembly.
7. The vehicle body frame structure according to claim 6, characterized in that: The door sill assembly includes an inner door sill arranged along the length direction of the vehicle body, and the front end of the inner door sill is connected to one end of the torque box assembly; Alternatively, the door sill assembly includes an inner door sill and a first reinforcement member arranged along the length direction of the vehicle body, the front end of the inner door sill is connected to one end of the torque box assembly, and the first reinforcement member is connected to the inner door sill.
8. The vehicle body frame structure according to claim 7, characterized in that: A first groove opening outward is formed on the inner door sill, and the first reinforcement member is arranged in the first groove; The first reinforcement member includes a first reinforcement body and a first reinforcement rib disposed in the first reinforcement body, wherein the first reinforcement rib divides the first reinforcement body to form at least two first reinforcement cavities.
9. The vehicle body frame structure according to claim 6, characterized in that: The vehicle body frame structure also includes a front floor panel and a front seat crossbeam; Two side edges of the front floor panel are connected to the door sill assembly; The front row seat cross beam is arranged at a side surface of the front floor panel along the width direction of the vehicle body, and both ends of the front row seat cross beam are connected to the door sill assembly.
10. The vehicle body frame structure according to claim 9, characterized in that: A second groove opening downward is formed on the front seat crossbeam; The vehicle body frame structure further includes a second reinforcement member disposed in the second groove, wherein the second reinforcement member is connected to two side walls of the front seat cross beam.
11. A car, characterized in that: The vehicle body frame structure comprises the vehicle body frame structure as described in any one of claims 1-10.