body frame

Abstract

The present invention discloses a vehicle body frame, which includes a front cabin assembly, which includes a front lower frame and a front upper frame, the front lower frame including a front anti-collision beam assembly, a left front longitudinal beam, a right front longitudinal beam, and a front cabin cross beam, the front end of the left front longitudinal beam is fixedly connected to the front anti-collision beam assembly, and the rear end is fixedly connected to the front cabin cross beam, the front upper frame is fixedly connected to the upper side of the front lower frame, and the front upper frame includes a front tower seat cross beam, a front cabin cover lock mounting bracket, a water tank upper cross beam, a left engine room upper side beam, and a right engine room upper side beam. According to the vehicle body frame of the present invention, by locating the front cabin cover lock mounting bracket between the left engine room upper side beam and the right engine room upper side beam, and fixing the front and rear ends to the water tank upper cross beam and the front tower seat cross beam respectively, the safety of the occupants in the vehicle can be better protected, the driving safety of the vehicle can be improved, and the structure is regular, and the bending and torsional rigidity of the vehicle body and the deformation resistance to collision are improved.

Description

Technical Field

[0001] The present invention relates to the field of automobile bodies, and in particular to a vehicle body frame. Background Art

[0002] With the increasing popularity of automobiles, people are paying more and more attention to vehicle safety, and ever-increasing collision regulations are placing increasingly stringent demands on vehicle bodies. Improving the energy absorbed by the vehicle body during a collision, reducing cab displacement and acceleration, and minimizing occupant injuries significantly contribute to the overall vehicle's performance in a collision.

[0003] Currently, the most common body-cab structure is: the front longitudinal frame structure is composed of the front bumper beam, front cabin longitudinal beam, front floor longitudinal beam, outer door sills, and body A-pillars. Due to the small number of longitudinal beams that bear impact loads in this structure, and the lack of a through-connection structure between the front and rear longitudinal beams, it can easily lead to insufficient impact energy transmission channels and unreasonable energy dispersion during a frontal collision. This can lead to insufficient front deformation and energy absorption, large front fender intrusion, and significant deformation of the floor and center tunnel, ultimately causing significant harm to the occupants. Moreover, the body frame structure is not arranged based on the energy absorption and dispersion transfer during the collision, nor the characteristics of key areas, which can easily cause unnecessary damage to the body frame and injury to the occupants. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a vehicle body frame that can better ensure the integrity and stability of the vehicle body structure, better protect the safety of the driver and passengers in the vehicle, and enhance the safety of the vehicle.

[0005] According to an embodiment of the present invention, the vehicle body frame includes a front cabin assembly, which includes a front lower frame and a front upper frame. The front lower frame includes a front anti-collision beam assembly, a left front longitudinal beam, a right front longitudinal beam, and a front cabin cross beam. The front end of the left front longitudinal beam is fixedly connected to the front anti-collision beam assembly, and the rear end is fixedly connected to the front cabin cross beam. The front end of the right front longitudinal beam is fixedly connected to the front anti-collision beam assembly, and the rear end is fixedly connected to the front cabin cross beam. The front upper frame is fixedly connected to the upper side of the front lower frame. The front upper frame includes a front tower seat. The crossbeam, the front hood lock mounting bracket, the water tank upper crossbeam, the left cabin upper side beam, and the right cabin upper side beam. The water tank upper crossbeam is located at the front end of the front tower base crossbeam, and the two ends of the water tank upper crossbeam are respectively fixedly connected to the left cabin upper side beam and the right cabin upper side beam. The two ends of the front tower base crossbeam are respectively fixedly connected to the left cabin upper side beam and the right cabin upper side beam. The front hood lock mounting bracket is located between the left cabin upper side beam and the right cabin upper side beam, and the front and rear ends are respectively fixedly connected to the water tank upper crossbeam and the front turret base crossbeam.

[0006] According to the body frame of an embodiment of the present invention, by fixedly connecting the front end of the left front longitudinal beam to the front anti-collision beam assembly and the rear end to the front cabin cross beam, and fixedly connecting the front end of the right front longitudinal beam to the front anti-collision beam assembly and the rear end to the front cabin cross beam, a stable "mouth" - shaped frame structure is formed for the front upper frame, which can effectively improve the overall structural rigidity and stability of the vehicle body. Moreover, as the front support of the vehicle body, the front anti-collision beam assembly can effectively absorb collision energy and transfer the impact force received through the left front longitudinal beam and the right front longitudinal beam; by fixedly connecting the two ends of the upper radiator cross beam to the left upper engine compartment side beam and the right upper engine compartment side beam respectively, and fixedly connecting the two ends of the front tower cross beam to the left upper engine compartment side beam and the right upper engine compartment side beam respectively, with the front hood lock mounting bracket located between the left upper engine compartment side beam and the right upper engine compartment side beam and fixedly connected to the upper radiator cross beam and the front tower cross beam at the front and rear ends respectively, a "eye" - shaped frame structure is formed for the front upper frame, which can better enhance the stability and rigidity of the vehicle body. The upper radiator cross beam is located at the front end of the front tower cross beam, and the two front hood lock mounting brackets add two force - transmission paths to the upper radiator cross beam. When the upper radiator cross beam is collided, it can better transfer the collision force through the front hood lock mounting bracket, the left upper engine compartment side beam and the right upper engine compartment side beam, better protect the structural integrity of the front upper frame, better protect the safety of the vehicle occupants inside the vehicle, improve the driving safety of the vehicle, and have a regular structure, which is beneficial to cost and weight control and is beneficial to improving the bending and torsion stiffness of the vehicle body and the whole vehicle and resisting the deformation during collision.

[0007] In addition, according to the body frame of the present invention, it may further have the following additional technical features:

[0008] In some embodiments of the present invention, the front lower frame further includes: a front panel reinforcement plate and engine compartment reinforcement beams. The engine compartment reinforcement beams include a left engine compartment reinforcement beam and a right engine compartment reinforcement beam. One end of the left engine compartment reinforcement beam is fixedly connected to the front panel reinforcement plate, and the other end is fixedly connected to the left front longitudinal beam. One end of the right engine compartment reinforcement beam is fixedly connected to the front panel reinforcement plate, and the other end is fixedly connected to the right front longitudinal beam.

[0009] In some embodiments of the present invention, the left front longitudinal beam includes a left front longitudinal beam front section, a left front longitudinal beam middle section, and a left front longitudinal beam rear section connected in sequence from front to rear. The right front longitudinal beam includes a right front longitudinal beam front section, a right front longitudinal beam middle section, and a right front longitudinal beam rear section connected in sequence from front to rear. The front end of the left engine compartment reinforcement beam is fixedly connected to the left front longitudinal beam middle section, and the rear end is inclined towards the right to be fixedly connected to the front panel reinforcement plate. The front end of the right engine compartment reinforcement beam is fixedly connected to the right front longitudinal beam middle section, and the rear end is inclined towards the left to be fixedly connected to the front panel reinforcement plate.

[0010] In some embodiments of the present invention, the front hood lock mounting bracket includes a left support plate, a right support plate and a connecting plate, the left support plate and the right support plate are spaced apart left and right, the connecting plate is connected between the left support plate and the right support plate, the front and rear ends of the left support plate are respectively fixedly connected to the water tank upper cross beam and the front tower seat cross beam, and the front and rear ends of the right support plate are respectively fixedly connected to the water tank upper cross beam and the front tower seat cross beam.

[0011] In some embodiments of the present invention, the front cabin assembly also includes: a left A-pillar, a right A-pillar, a left water tank column, a right water tank column, a left front cabin upper side beam connecting plate, a right front cabin upper side beam connecting plate, a left front tower seat and a right front tower seat, the rear end of the left front longitudinal beam is fixedly connected to the left A-pillar, the upper end of the left water tank column is fixedly connected to the water tank upper cross beam, and the lower end is fixedly connected to the left front longitudinal beam, the upper end of the left front tower seat is fixedly connected to the left nacelle upper side beam, and the lower side is fixedly connected to the left front longitudinal beam. The left front cabin upper side beam is fixedly connected, the left front cabin upper side beam connecting plate is connected between the left cabin upper side beam and the left A-pillar, the rear end of the right front longitudinal beam is fixedly connected to the right A-pillar, the upper end of the right water tank column is fixedly connected to the water tank upper cross beam, and the lower end is fixedly connected to the right front longitudinal beam, the upper end of the right front tower seat is fixedly connected to the right cabin upper side beam, and the lower side is fixedly connected to the right front longitudinal beam, and the right front cabin upper side beam connecting plate is connected between the right cabin upper side beam and the right A-pillar.

[0012] In some embodiments of the present invention, the vehicle body frame further includes a front floor assembly, which is connected to the rear end of the front cabin assembly. The front floor assembly includes a left sill beam, a right sill beam, a front cabin cross beam, a front floor cross beam, a front seat front cross beam, and a front seat rear cross beam. The front cabin cross beam, the front floor cross beam, the front seat front cross beam, and the front seat rear cross beam are sequentially spaced apart in the front-to-back direction. The upper side surface of the left sill beam is fixedly connected to the left A-pillar, and the right side surface of the left sill beam is fixedly connected to the rear end of the left front longitudinal beam. The upper side surface of the right side sill beam is fixedly connected to the right A-pillar, the left side surface of the right side sill beam is fixedly connected to the rear end of the right front longitudinal beam, the left and right sides of the front cabin cross beam are respectively fixedly connected to the left front longitudinal beam and the right front longitudinal beam, the two ends of the front floor cross beam are respectively fixedly connected to the left side sill beam and the right side sill beam, the two ends of the front seat front cross beam are respectively fixedly connected to the left side sill beam and the right side sill beam, and the two ends of the front seat rear cross beam are respectively fixedly connected to the left side sill beam and the right side sill beam.

[0013] In some embodiments of the present invention, the front floor assembly also includes a middle channel, the front end of the middle channel is fixedly connected to the front panel, and the rear end is fixedly connected to the rear panel, the front cabin cross beam includes a left front cabin cross beam and a right front cabin cross beam connected on the left and right sides of the middle channel, the front floor cross beam includes a left front floor cross beam and a right front floor cross beam connected on the left and right sides of the middle channel, the front seat front cross beam includes a left front seat front cross beam and a right front seat front cross beam connected on the left and right sides of the middle channel, and the front seat rear cross beam includes a left front seat rear cross beam and a right front seat rear cross beam connected on the left and right sides of the middle channel.

[0014] In some embodiments of the present invention, the cross-section of the central channel is a U-shaped structure opening downward, and the front floor assembly further includes a central channel reinforcement plate installed at the opening of the central channel.

[0015] In some embodiments of the present invention, the vehicle body frame also includes: a rear enclosure assembly, which is connected to the rear end of the front floor assembly, and the rear enclosure assembly includes: a left B-pillar, a right B-pillar, a rear enclosure lower cross beam, a rear enclosure middle cross beam and a rear enclosure upper cross beam, the left sill beam has a left connecting section, the left end of the front seat rear cross beam is connected to the right side of the left connecting section, the lower end of the left B-pillar is connected to the upper side of the left connecting section, the right sill beam has a right connecting section, the right end of the front seat rear cross beam is connected to the left side of the right connecting section, the lower end of the right B-pillar is connected to the upper side of the right connecting section, the rear enclosure lower cross beam, the rear enclosure middle cross beam and the rear enclosure upper cross beam are spaced apart in sequence from bottom to top, and are all connected between the left B-pillar and the right B-pillar.

[0016] In some embodiments of the present invention, the vehicle body frame also includes: a rear floor assembly, which is connected to the rear end of the rear enclosure assembly, and the rear floor assembly includes a rear lower frame, and the rear lower frame includes: a left rear longitudinal beam, a right rear longitudinal beam, a rear anti-collision beam, a trunk cross beam, a rear tower seat lower cross beam and a rear floor middle cross beam, the front end of the left rear longitudinal beam is fixedly connected to the rear end of the left sill beam, and the rear end is fixedly connected to the left side of the rear anti-collision beam, the front end of the right rear longitudinal beam is fixedly connected to the rear end of the right sill beam, and the rear end is fixedly connected to the right side of the rear anti-collision beam, the trunk cross beam, the rear tower seat lower cross beam and the rear floor middle cross beam are spaced apart in sequence from back to front, and are all connected between the left rear longitudinal beam and the right rear longitudinal beam.

[0017] In some embodiments of the present invention, the rear floor assembly also includes a rear upper frame, which is fixedly connected to the upper side of the rear lower frame, and the rear upper frame includes: a left rear floor upper longitudinal beam, a left rear tower seat, a left rear floor rear longitudinal beam, a right rear floor upper longitudinal beam, a right rear tower seat, a right rear floor rear longitudinal beam, a rear tower seat upper cross beam and a rear tail wing reinforcement plate, the front end of the left rear floor upper longitudinal beam is fixedly connected to the left B-pillar, the rear end is fixedly connected to the upper end of the left rear tower seat, the lower end of the left rear tower seat is fixedly connected to the left rear longitudinal beam, and the left The front end of the rear longitudinal beam of the side rear floor is fixedly connected to the upper end of the left rear tower seat, and the rear end is fixedly connected to the left end of the rear wing reinforcement plate. The front end of the upper longitudinal beam of the right rear floor is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the upper end of the right rear tower seat. The lower end of the right rear tower seat is fixedly connected to the right rear longitudinal beam. The front end of the rear longitudinal beam of the right rear floor is fixedly connected to the upper end of the right rear tower seat, and the rear end is fixedly connected to the right end of the rear wing reinforcement plate. The two ends of the rear tower seat upper cross beam are respectively fixedly connected to the left rear tower seat and the right rear tower seat.

[0018] In some embodiments of the present invention, the rear floor assembly further includes a connecting plate connected between the rear wing reinforcement plate and the rear anti-collision beam.

[0019] In some embodiments of the present invention, the rear floor assembly further includes: a left rear floor middle longitudinal beam, a right rear floor middle longitudinal beam, a left rear longitudinal beam pillar and a right rear longitudinal beam pillar, the left rear floor middle longitudinal beam is located at the lower end of the left rear floor upper longitudinal beam, the front end of the left rear floor middle longitudinal beam is fixedly connected to the left B-pillar, and the rear end is fixedly connected to the left rear longitudinal beam, the right rear floor middle longitudinal beam is located at the lower end of the right rear floor upper longitudinal beam, the front end of the right rear floor middle longitudinal beam is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the right rear longitudinal beam, the upper end of the left rear longitudinal beam pillar is fixedly connected to the left rear floor rear longitudinal beam, and the lower end is fixedly connected to the left rear longitudinal beam, the upper end of the right rear longitudinal beam pillar is fixedly connected to the right rear floor rear longitudinal beam, and the lower end is fixedly connected to the right rear longitudinal beam.

[0020] In some embodiments of the present invention, the vehicle body frame also includes: a roof cover assembly, which includes: a left side upper side beam, a right side upper side beam, a roof cover front cross beam, and a roof cover rear cross beam. The front end of the left side upper side beam is fixedly connected to the left A-pillar, and the rear end is fixedly connected to the left B-pillar. The front end of the right side upper side beam is fixedly connected to the right A-pillar, and the rear end is fixedly connected to the right B-pillar. The roof cover front cross beam is located in front of the roof cover rear cross beam. The two ends of the roof cover front cross beam are respectively fixedly connected to the left side upper side beam and the right side upper side beam. The two ends of the roof cover rear cross beam are respectively fixedly connected to the left side upper side beam and the right side upper side beam.

[0021] In some embodiments of the present invention, the roof assembly further includes: a roof reinforcement longitudinal beam, wherein the roof reinforcement longitudinal beam is connected between the roof front cross beam and the roof rear cross beam.

[0022] In some embodiments of the present invention, the top cover assembly also includes: a left side rear side beam and a right side rear side beam, the front end of the left side rear side beam is fixedly connected to the left B-pillar, and the rear end is fixedly connected to the left rear tower seat, the front end of the right side rear side beam is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the right rear tower seat.

[0023] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0025] Figure 1 2 is a schematic structural diagram of a vehicle body frame according to an embodiment of the present invention.

[0026] Figure 2 FIG. 4 is a bottom view of a vehicle body frame according to an embodiment of the present invention.

[0027] Figure 3 FIG. 1 is a top view of a vehicle body frame according to an embodiment of the present invention.

[0028] Figure 4 FIG. 1 is a left side view of a vehicle body frame according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] body frame 100,

[0031] Front anti-collision beam assembly 11, left front longitudinal beam 12, left front longitudinal beam front section 121, left front longitudinal beam middle section 122, left front longitudinal beam rear section 123,

[0032] right front longitudinal beam 13, right front longitudinal beam front section 131, right front longitudinal beam middle section 132, right front longitudinal beam rear section 133,

[0033] Left front cabin crossbeam 141, right front cabin crossbeam 142,

[0034] The dash panel reinforcement plate 15, the left cabin reinforcement beam 161, the right cabin reinforcement beam 162,

[0035] Front tower base crossbeam 21, front hatch lock mounting bracket 22, left support plate 221, right support plate 222, first connecting plate 223,

[0036] Water tank upper cross beam 23, left cabin upper side beam 24, right cabin upper side beam 25,

[0037] Left A-pillar 31, right A-pillar 32, left water tank column 33, right water tank column 34, left front cabin upper side beam connecting plate 35, right front cabin upper side beam connecting plate 36, left front tower base 37, right front tower base 38,

[0038] The left side door sill beam 41 and the right side door sill beam 42,

[0039] Left front floor cross member 441, right front floor cross member 442,

[0040] Left front seat front crossbeam 451, right front seat front crossbeam 452,

[0041] Left front seat rear crossbeam 461, right front seat rear crossbeam 462,

[0042] Middle channel 47, middle channel reinforcement plate 48,

[0043] Left B-pillar 51, rear lower cross member 53, rear middle cross member 54, rear upper cross member 55,

[0044] Left rear longitudinal beam 61, right rear longitudinal beam 62, rear anti-collision beam 63, trunk cross beam 64, rear tower seat lower cross beam 65, rear floor middle cross beam 66,

[0045] Left rear floor upper longitudinal beam 71, left rear tower base 72, left rear floor rear longitudinal beam 73, right rear floor upper longitudinal beam 74, right rear tower base 75, right rear floor rear longitudinal beam 76, rear tower base upper cross beam 77, rear tail reinforcement plate 78, second connecting plate 79,

[0046] Left rear floor middle longitudinal beam 81, left rear longitudinal beam column 83,

[0047] The left side upper side beam 91, the right side upper side beam 92, the roof front cross beam 93, the roof rear cross beam 94, the roof reinforcement longitudinal beam 95, the left side rear side beam 96, and the right side rear side beam 97. DETAILED DESCRIPTION

[0048] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0049] Reference below Figures 1-4 A vehicle body frame 100 according to an embodiment of the present invention will be described.

[0050] refer to Figures 1-4 As shown, the vehicle body frame 100 includes a front cabin assembly, which includes a front lower frame and a front upper frame. The front lower frame includes a front anti-collision beam assembly 11, a left front longitudinal beam 12, a right front longitudinal beam 13, and a front cabin cross beam. The front end of the left front longitudinal beam 12 is fixedly connected to the anti-collision beam assembly, and the rear end is fixedly connected to the front cabin cross beam. The front end of the right front longitudinal beam 13 is fixedly connected to the anti-collision beam assembly, and the rear end is fixedly connected to the front cabin cross beam, so that these components form a stable "mouth"-shaped frame structure, which can effectively improve the overall structural rigidity and stability of the vehicle body, and the front anti-collision beam assembly 11 serves as the front end support of the vehicle body, which can effectively absorb collision energy and transmit the impact force through the left front longitudinal beam 12 and the right front longitudinal beam 13, thereby protecting the safety of the people in the vehicle and improving the driving safety of the vehicle.

[0051] The front upper frame is fixedly connected to the upper side of the front lower frame, and the front upper frame includes a front tower crossbeam 21, a front hood lock mounting bracket 22, a water tank upper crossbeam 23, a left cabin upper side beam 24, and a right cabin upper side beam 25. The water tank upper crossbeam 23 is located at the front end of the front tower crossbeam 21, and the two ends of the water tank upper crossbeam 23 are respectively fixedly connected to the left cabin upper side beam 24 and the right cabin upper side beam 25. The two ends of the front tower crossbeam 21 are respectively fixedly connected to the left cabin upper side beam 24 and the right cabin upper side beam 25. The front hood lock mounting bracket 22 is located at the left cabin upper side beam 24 and the right cabin upper side beam 25. The front and rear ends are respectively fixedly connected to the water tank upper cross beam 23 and the front tower seat cross beam 21, so that the front upper skeleton forms a frame structure, which better improves the stability and rigidity of the vehicle body. The water tank upper cross beam 23 is located at the front end of the front tower seat cross beam 21, and the front hood lock mounting bracket 22 increases the force transmission path for the water tank upper cross beam 23, so that when the water tank upper cross beam 23 is collided, the collision force can be better transmitted through the front hood lock mounting bracket 22 and the left cabin upper side beam 24 and the right cabin upper side beam 25, thereby better protecting the structural integrity of the front upper skeleton and better protecting the safety of the occupants in the vehicle.

[0052] The structure of the traditional vehicle body frame 100 is relatively loose, and the force transmission path is discontinuous. When a collision occurs, the collision force cannot be transmitted to the vehicle body well, but will be directly transmitted to the vehicle occupants inside the vehicle, causing serious harm to the vehicle occupants inside the vehicle. Compared with the traditional vehicle body frame 100, for the vehicle body frame 100 of the present application, by fixedly connecting the front end of the left front longitudinal beam 12 to the front anti-collision beam assembly 11 and the rear end to the front cabin cross beam, and fixedly connecting the front end of the right front longitudinal beam 13 to the front anti-collision beam assembly 11 and the rear end to the front cabin cross beam, these components form a stable "mouth" - shaped frame structure, which can effectively improve the overall structural rigidity and stability of the vehicle body. Moreover, as the front support of the vehicle body, the front anti-collision beam assembly 11 can effectively absorb collision energy and transmit the received impact force through the left front longitudinal beam 12 and the right front longitudinal beam 13. By fixedly connecting the two ends of the radiator upper cross beam 23 to the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25 respectively, and fixedly connecting the two ends of the front tower cross beam 21 to the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25 respectively, and the front hood lock mounting bracket 22 is located between the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25, and its front and rear ends are fixedly connected to the radiator upper cross beam 23 and the front tower cross beam 21 respectively, the front upper skeleton forms an "eye" - shaped frame structure, which can preferably improve the stability and stiffness of the vehicle body. The radiator upper cross beam 23 is located at the front end of the front tower cross beam 21. The two front hood lock mounting brackets 22 add two longitudinal force transmission paths to the radiator upper cross beam 23, so that when the radiator upper cross beam 23 is collided, the collision force can be better transmitted through the front hood lock mounting bracket 22 and the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25, preferably protecting the structural integrity of the front upper skeleton and better protecting the safety of the vehicle occupants inside the vehicle, and improving the safety of the vehicle.

[0053] Thus, for the vehicle body frame 100 according to the embodiments of the present invention, by fixedly connecting the front end of the left front longitudinal beam 12 to the front anti-collision beam assembly 11 and the rear end to the front cabin cross beam, and fixedly connecting the front end of the right front longitudinal beam 13 to the front anti-collision beam assembly 11 and the rear end to the front cabin cross beam, these components form a stable "square" frame structure, which can effectively improve the overall structural rigidity and stability of the vehicle body. Moreover, as the front-end support of the vehicle body, the front anti-collision beam assembly 11 can effectively absorb collision energy and transfer the impact force received through the left front longitudinal beam 12 and the right front longitudinal beam 13. By fixedly connecting both ends of the radiator upper cross beam 23 to the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25 respectively, and fixedly connecting both ends of the front tower cross beam 21 to the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25 respectively, and the front hood lock mounting bracket 22 is located between the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25, and its front and rear ends are fixedly connected to the radiator upper cross beam 23 and the front tower cross beam 21 respectively, the front upper skeleton forms an "eye" - shaped frame structure, which can preferably enhance the stability and stiffness of the vehicle body. The radiator upper cross beam 23 is located at the front end of the front tower cross beam 21, and the two front hood lock mounting brackets 22 add two longitudinal force - transmission paths to the radiator upper cross beam 23. When the radiator upper cross beam 23 is impacted, the collision force can be better transmitted through the front hood lock mounting bracket 22, the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25, preferably protecting the structural integrity of the front upper skeleton, better protecting the safety of the vehicle occupants inside the vehicle, enhancing the safety of the vehicle, and having a regular structure, which is beneficial to cost and weight control, and is beneficial to enhancing the bending and torsion stiffness of the vehicle body and the whole vehicle and the deformation resistance during collision.

[0054] In some embodiments of the present invention, referring to Figures 1-4 as shown, the front lower skeleton further includes a front wall reinforcement plate 15 and engine compartment reinforcement beams. The engine compartment reinforcement beams include a left engine compartment reinforcement beam 161 and a right engine compartment reinforcement beam 162. One end of the left engine compartment reinforcement beam 161 is fixedly connected to the front wall reinforcement plate 15, and the other end is fixedly connected to the left front longitudinal beam 12. One end of the right engine compartment reinforcement beam 162 is fixedly connected to the front wall reinforcement plate 15, and the other end is fixedly connected to the right front longitudinal beam 13. Thus, the front wall reinforcement plate 15, the left engine compartment reinforcement beam 161 and the left front longitudinal beam 12 form an enclosed triangular structure, and the front wall reinforcement plate 15, the right engine compartment reinforcement beam 162 and the right front longitudinal beam 13 form an enclosed triangular structure. Since a triangle has strong stability, it can preferably enhance the stiffness of the front lower skeleton, endowing it with strong anti - impact ability. When the vehicle body is collided or makes a sharp turn, it can preferably maintain the structural integrity and stability, improving the handling stability and safety of the vehicle.

[0055] In some embodiments of the present invention, referring to [[ID=…]] Figures 1-4As shown in the figure, the left front longitudinal beam 12 includes a front section 121, a middle section 122, and a rear section 123 of the left front longitudinal beam that are connected in sequence from front to back. The right front longitudinal beam 13 includes a front section 131, a middle section 132, and a rear section 133 of the right front longitudinal beam that are connected in sequence from front to back. The front end of the left engine compartment reinforcing beam 161 is fixedly connected to the middle section 122 of the left front longitudinal beam, and the rear end is inclined towards the right to be fixedly connected to the front bulkhead reinforcing plate 15, so that the front bulkhead reinforcing plate 15, the left engine compartment reinforcing beam 161, and the middle section 122 of the left front longitudinal beam form an enclosed triangular structure, which better strengthens the structural strength of the left part of the front lower skeleton. The front end of the right engine compartment reinforcing beam 162 is fixedly connected to the middle section 132 of the right front longitudinal beam, and the rear end is inclined towards the left to be fixedly connected to the front bulkhead reinforcing plate 15, so that the front bulkhead reinforcing plate 15, the right engine compartment reinforcing beam 162, and the middle section 132 of the right front longitudinal beam form an enclosed triangular structure, which better strengthens the structural strength of the right part of the front lower skeleton. This makes the front lower skeleton have strong impact resistance. When the vehicle body is collided or makes a sharp turn, it can better maintain the integrity and stability of the structure, improving the handling stability and safety of the vehicle.

[0056] In some embodiments of the present invention, referring to Figures 1-4 As shown in the figure, the hood lock mounting bracket 22 includes a left support plate 221, a right support plate 222, and a first connecting plate 223. The left support plate 221 and the right support plate 222 are spaced apart left and right. The first connecting plate 223 is connected between the left support plate 221 and the right support plate 222, further strengthening the structural strength of the left support plate 221 and the right support plate 222. The front and rear ends of the left support plate 221 are respectively fixedly connected to the upper radiator crossmember 23 and the front tower crossmember 21. The front and rear ends of the right support plate 222 are respectively fixedly connected to the upper radiator crossmember 23 and the front tower crossmember 21. The hood lock mounting bracket 22 is located between the left engine compartment upper side beam 24 and the right engine compartment upper side beam 25, and its front and rear ends are respectively fixedly connected to the upper radiator crossmember 23 and the front tower crossmember 21, making the front upper skeleton form an "eye" - shaped frame structure, which better improves the stability and stiffness of the vehicle body. The upper radiator crossmember 23 is located at the front end of the front tower crossmember 21. The left support plate 221 and the right support plate 222 add two longitudinal force - transmission paths to the upper radiator crossmember 23, so that when the upper radiator crossmember 23 is collided, it can better transmit the collision force through the hood lock mounting bracket 22, the left engine compartment upper side beam 24, and the right engine compartment upper side beam 25, better protecting the structural integrity of the front upper skeleton and better protecting the safety of the vehicle occupants inside the vehicle.

[0057] In some embodiments of the present invention, referring to Figures 1-4As shown in the figure, the front cabin assembly further includes the left A-pillar 31, the right A-pillar 32, the left radiator support 33, the right radiator support 34, the left front cabin upper side beam connecting plate 35, the right front cabin upper side beam connecting plate 36, the left front tower base 37 and the right front tower base 38. The rear end of the left front longitudinal beam 12 is fixedly connected to the left A-pillar 31. The upper end of the left radiator support 33 is fixedly connected to the radiator upper cross beam 23, and the lower end is fixedly connected to the left front longitudinal beam 12. The upper end of the left front tower base 37 is fixedly connected to the left engine compartment upper side beam 24, and the lower side is fixedly connected to the left front longitudinal beam 12. The left front cabin upper side beam connecting plate 35 is connected between the left engine compartment upper side beam 24 and the left A-pillar 31, so that a "mu" shaped structure is formed at the left position of the front cabin assembly, which has strong structural strength, can better improve the structural strength of the left side of the vehicle. When the left side of the vehicle is collided, the structural integrity of the left side of the front cabin assembly of the vehicle can be better maintained. And through this "mu" shaped structure, the front upper skeleton and the front lower skeleton can be relatively stably connected, providing a firm support between the front upper skeleton and the front lower skeleton. And through the mutual force transmission of the left A-pillar 31, the left radiator support 33 and the left front tower base 37, the collision force received by the front upper skeleton and the front lower skeleton can be better alleviated, the structural strength of the vehicle can be improved, and the safety of the passengers in the vehicle can be better protected.

[0058] The rear end of the right front longitudinal beam 13 is fixedly connected to the right A-pillar 32. The upper end of the right radiator support 34 is fixedly connected to the radiator upper cross beam 23, and the lower end is fixedly connected to the right front longitudinal beam 13. The upper end of the right front tower base 38 is fixedly connected to the right engine compartment upper side beam 25, and the lower side is fixedly connected to the right front longitudinal beam 13. The right front cabin upper side beam connecting plate 36 is connected between the right engine compartment upper side beam 25 and the right A-pillar 32, so that a "mu" shaped structure is formed at the right position of the front cabin assembly, which has strong structural strength, can better improve the structural strength of the right side of the vehicle. When the right side of the vehicle is collided, the structural integrity of the right side of the front cabin assembly of the vehicle can be better maintained. And through this "mu" shaped structure, the front upper skeleton and the front lower skeleton can be relatively stably connected, providing a firm support between the front upper skeleton and the front lower skeleton. And through the mutual force transmission of the right A-pillar 32, the right radiator support 34 and the right front tower base 38, the collision force received by the front upper skeleton and the front lower skeleton can be better alleviated, the structural strength of the vehicle can be improved, and the safety of the passengers in the vehicle can be better protected.

[0059] In some embodiments of the present invention, refer to Figures 1-4As shown, the vehicle body frame 100 further includes a front floor assembly, which is connected to the rear end of the front cabin assembly and provides support for the front seat position of the vehicle. The front floor assembly includes a left sill beam 41, a right sill beam 42, a front floor cross beam, a front seat front cross beam, and a front seat rear cross beam. The front cabin cross beam, the front floor cross beam, the front seat front cross beam, and the front seat rear cross beam are spaced apart in sequence from front to back. In addition, the settings of the front seat front cross beam and the front seat rear cross beam can improve the rigidity and stability of the front seats, thereby enhancing the riding comfort and driving safety. The upper side surface of the left sill beam 41 is fixedly connected to the left A-pillar 31, and the right side surface of the left sill beam 41 is fixedly connected to the rear end of the left front longitudinal beam 12. The upper side surface of the right sill beam 42 is fixedly connected to the right A-pillar 32, and the left side surface of the right sill beam 42 is fixedly connected to the rear end of the right front longitudinal beam 13. The left and right sides of the front cabin cross beam are respectively fixedly connected to the left front longitudinal beam 12 and the right front longitudinal beam 13, forming a force transmission channel between the left front longitudinal beam 12 and the right front longitudinal beam 13. The two ends of the front floor cross beam are respectively fixedly connected to the left sill beam 41 and the right sill beam 42, forming a force transmission channel between the left front longitudinal beam 12 and the right front longitudinal beam 13. The two ends of the front seat front cross beam are respectively fixedly connected to the left sill beam 41 and the right sill beam 42, forming a force transmission channel between the left front longitudinal beam 12 and the right front longitudinal beam 13. The two ends of the front seat rear cross beam are respectively fixedly connected to the left sill beam 41 and the right sill beam 42, forming a force transmission channel between the left front longitudinal beam 12 and the right front longitudinal beam 13. In this way, the front floor assembly forms a "mu" - shaped frame structure, enhancing the torsional stiffness of the floor assembly and at the same time providing an effective force transmission path for side collisions, thus better enhancing the safety during vehicle driving.

[0060] In some embodiments of the present invention, referring to Figures 1-4As shown, the front floor assembly further includes a middle channel 47. The front end of the middle channel 47 is fixedly connected to the front bulkhead, and the rear end is fixedly connected to the rear bulkhead. The front cabin crossbeam includes a left front cabin crossbeam 141 and a right front cabin crossbeam 142 connected to the left and right sides of the middle channel 47 respectively. The front floor crossbeam includes a left front floor crossbeam 441 and a right front floor crossbeam 442 connected to the left and right sides of the middle channel 47 respectively. The front seat front crossbeam includes a left front seat front crossbeam 451 and a right front seat front crossbeam 452 connected to the left and right sides of the middle channel 47 respectively. The front seat rear crossbeam includes a left front seat rear crossbeam 461 and a right front seat rear crossbeam 462 connected to the left and right sides of the middle channel 47 respectively. In a specific embodiment, the middle channel 47 is located at the center of the front floor assembly, making the front floor assembly form a double "eye" - shaped structure. The middle channel 47 plays a role in bearing and force transmission in the vehicle body frame 100. The front end of the middle channel 47 is connected to the front bulkhead, and the collision force of the front part of the vehicle body can be transmitted to the middle channel 47 through the front bulkhead, and the middle channel 47 can bear it. The rear end of the middle channel 47 is connected to the rear bulkhead, and the collision force of the rear part of the vehicle body can be transmitted to the middle channel 47 through the rear bulkhead, and the middle channel 47 can bear it. In addition, the middle channel 47 also transmits the collision force of the vehicle body structure to these components through the front floor crossbeams, front seat front crossbeams and front seat rear crossbeams connected to its left and right sides, making the overall vehicle body frame 100 more stable and stronger, improving the vehicle's handling performance and driving stability.

[0061] In some embodiments of the present invention, referring to Figures 1-4 As shown, the cross - section of the middle channel 47 is a U - shaped structure with an opening downward. On the premise of ensuring the structural strength of the middle channel 47, the weight of the middle channel 47 is reduced, enabling the vehicle to exhibit stronger performance and reducing production costs. The front floor assembly further includes a middle channel reinforcement plate 48. The middle channel reinforcement plate 48 is installed at the opening of the middle channel 47, which can increase the overall stiffness of the middle channel 47, improve the vehicle's handling performance and driving stability. During the vehicle's driving process, the middle channel reinforcement plate 48 can reduce the probability of the vehicle body being distorted and deformed, thus ensuring the comfort and safety of the passengers inside the vehicle.

[0062] In some embodiments of the present invention, referring to Figures 1-4As shown in the figure, the vehicle body frame 100 further includes a rear enclosure assembly. The rear enclosure assembly is connected to the rear end of the front floor assembly. The rear enclosure assembly includes a left B pillar 51, a right B pillar, a rear enclosure lower cross member 53, a rear enclosure middle cross member 54, and a rear enclosure upper cross member 55. The left sill beam 41 has a left connecting section. The left end of the rear cross beam of the front seat is connected to the right side surface of the left connecting section. The lower end of the left B pillar 51 is connected to the upper side surface of the left connecting section. The right sill beam 42 has a right connecting section. The right end of the rear cross beam of the front seat is connected to the left side surface of the right connecting section. The lower end of the right B pillar is connected to the upper side surface of the right connecting section. The rear enclosure lower cross member 53, the rear enclosure middle cross member 54, and the rear enclosure upper cross member 55 are spaced apart from each other in sequence from bottom to top, and are all connected between the left B pillar 51 and the right B pillar. That is to say, there are three transverse force transmission channels, namely the rear enclosure lower cross member 53, the rear enclosure middle cross member 54, and the rear enclosure upper cross member 55, between the left B pillar 51 and the right B pillar, so that the rear enclosure assembly forms a "day" - shaped frame structure. Through the connection of the left sill beam 41 and the right sill beam 42, and the connection of the rear cross beam of the front seat, the stiffness of the vehicle body can be improved, the vibration and noise generated during vehicle operation can be reduced, and the riding comfort can be improved. The rear enclosure lower cross member 53, the rear enclosure middle cross member �4, and the rear enclosure upper cross member 55 are all connected between the left B pillar 51 and the right B pillar, which can evenly distribute the loads on the vehicle body, avoid single - point concentrated loads, and prevent the vehicle body from excessive deformation in a collision accident, thereby better protecting the safety of passengers.

[0063] In some embodiments of the present invention, referring to Figures 1-4 As shown in the figure, the vehicle body frame 100 further includes a rear floor assembly. The rear floor assembly is connected to the rear end of the rear enclosure assembly. The rear floor assembly includes a rear lower - layer frame. The rear lower - layer frame includes a left rear longitudinal beam 61, a right rear longitudinal beam 62, a rear anti - collision beam 63, a trunk cross beam 64, a rear tower base lower cross beam 65, and a rear floor middle cross beam 66. The front end of the left rear longitudinal beam 61 is fixedly connected to the rear end of the left sill beam 41, and the rear end is fixedly connected to the left side of the rear anti - collision beam 63. The front end of the right rear longitudinal beam 62 is fixedly connected to the rear end of the right sill beam 42, and the rear end is fixedly connected to the right side of the rear anti - collision beam 63. The trunk cross beam 64, the rear tower base lower cross beam 65, and the rear floor middle cross beam 66 are spaced apart from each other in sequence from rear to front, and are all connected between the left rear longitudinal beam 61 and the right rear longitudinal beam 62, so that the rear lower - layer frame forms an "eye" - shaped frame structure. Specifically, the left rear longitudinal beam 61 and the right rear longitudinal beam 62 are respectively located on the left and right sides of the vehicle, bearing torsional force and bending force. The trunk cross beam 64, the rear tower base lower cross beam 65, and the rear floor middle cross beam 66 serve as transverse strengthening structures, increasing the overall stiffness of the rear lower - layer frame and improving the stability and handling performance of the vehicle body. In addition, the rear anti - collision beam 63 bears the impact force generated when the vehicle is impacted from the rear and disperses it to the rear longitudinal beams on both sides, thereby protecting the safety of the vehicle occupants.

[0064] In some embodiments of the present invention, referring to Figures 1-4 as shown, the rear floor assembly further includes an upper rear frame, the upper rear frame is fixedly connected to the upper side of the lower rear frame, the upper rear frame includes a left rear floor upper longitudinal beam 71, a left rear tower base 72, a left rear floor rear longitudinal beam 73, a right rear floor upper longitudinal beam 74, a right rear tower base 75, a right rear floor rear longitudinal beam 76, a rear tower base upper cross beam 77 and a rear wing reinforcement plate 78. The front end of the left rear floor upper longitudinal beam 71 is fixedly connected to the left B pillar 51, and the rear end is fixedly connected to the upper end of the left rear tower base 72. The lower end of the left rear tower base 72 is fixedly connected to the left rear longitudinal beam 61. The front end of the left rear floor rear longitudinal beam 73 is fixedly connected to the upper end of the left rear tower base 72, and the rear end is fixedly connected to the left end of the rear wing reinforcement plate 78. The front end of the right rear floor upper longitudinal beam 74 is fixedly connected to the right B pillar, and the rear end is fixedly connected to the upper end of the right rear tower base 75. The lower end of the right rear tower base 75 is fixedly connected to the right rear longitudinal beam 62. The front end of the right rear floor rear longitudinal beam 76 is fixedly connected to the upper end of the right rear tower base 75, and the rear end is fixedly connected to the right end of the rear wing reinforcement plate 78. Both ends of the rear tower base upper cross beam 77 are respectively fixedly connected to the left rear tower base 72 and the right rear tower base 75, so that the upper rear frame forms a "mu" - shaped frame structure. Specifically, the left rear floor upper longitudinal beam 71 and the right rear floor upper longitudinal beam 74 are respectively located on the left and right sides of the vehicle, bearing torsional force and bending force. The rear tower base upper cross beam 77 and the rear wing reinforcement plate 78 serve as transverse reinforcement structures, increasing the overall stiffness of the upper rear frame, improving the stability and handling performance of the vehicle body. The left rear tower base 72 and the right rear tower base 75 have strong structural strength, better strengthening the connection strength between the left rear floor upper longitudinal beam 71, the left rear floor rear longitudinal beam 73, the left rear longitudinal beam 61 and the left rear tower base 72, and better strengthening the connection strength between the right rear floor upper longitudinal beam 74, the right rear floor rear longitudinal beam 76 and the right rear longitudinal beam 62 and the right rear tower base 75. In addition, when the rear wing reinforcement plate 78 receives the impact force generated by a rear impact of the vehicle, the impact force can be dispersed and transmitted to the left rear floor upper longitudinal beam 71, the left rear floor rear longitudinal beam 73, the right rear floor upper longitudinal beam 74 and the right rear floor rear longitudinal beam 76 on both sides, thereby enhancing the structural strength of the vehicle body frame 100 and protecting the safety of the vehicle occupants.

[0065] In some embodiments of the present invention, referring to Figures 1-4 as shown, the rear floor assembly further includes a second connecting plate 79, the second connecting plate 79 is connected between the rear wing reinforcement plate 78 and the rear anti - collision beam 63. In a specific embodiment, the second connecting plate 79 is a cuboid, having strong structural strength, enhancing the relative stability between the rear wing reinforcement plate 78 and the rear anti - collision beam 63, so that when the rear anti - collision beam 63 is impacted, the collision force can be stably transmitted to the rear wing reinforcement plate 78, better strengthening the structural strength of the rear floor assembly.

[0066] In some embodiments of the present invention, reference Figures 1-4 As shown, the rear floor assembly also includes a left rear floor middle longitudinal beam 81, a right rear floor middle longitudinal beam, a left rear longitudinal beam pillar 83 and a right rear longitudinal beam pillar. The left rear floor middle longitudinal beam 81 is located at the lower end of the left rear floor upper longitudinal beam 71. The front end of the left rear floor middle longitudinal beam 81 is fixedly connected to the left B-pillar 51, and the rear end is fixedly connected to the left rear longitudinal beam 61, forming a triangular frame structure with strong structural stability. When the rear floor assembly is subjected to a collision force, it can better disperse and transmit the collision force, maintain the structural integrity and stability of the rear floor assembly, and improve the safety of the vehicle. The right rear floor middle longitudinal beam is located at the lower end of the right rear floor upper longitudinal beam 74, the front end of the right rear floor middle longitudinal beam is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the right rear longitudinal beam 62, forming a triangular frame structure with strong structural stability. When the rear floor assembly is subjected to a collision force, it can better disperse and transmit the collision force, maintain the structural integrity and stability of the rear floor assembly, and improve the safety of the vehicle.

[0067] The upper end of the left rear longitudinal beam column 83 is fixedly connected to the left rear floor rear longitudinal beam 73, and the lower end is fixedly connected to the left rear longitudinal beam 61, so that a "mouth"-shaped frame structure is formed among the left rear longitudinal beam column 83, the left rear floor rear longitudinal beam 73, the left rear longitudinal beam 61 and the left rear tower seat 72, thereby effectively improving the structural strength and stability of the rear floor assembly. The upper end of the right rear longitudinal beam column is fixedly connected to the right rear floor rear longitudinal beam 76, and the lower end is fixedly connected to the right rear longitudinal beam 62, so that a "mouth"-shaped frame structure is formed among the right rear longitudinal beam column, the right rear floor rear longitudinal beam 76, the right rear longitudinal beam 62 and the right rear tower seat 75, thereby effectively improving the structural strength and stability of the rear floor assembly, thereby improving the safety of the vehicle.

[0068] In some embodiments of the present invention, reference Figures 1-4 As shown, the vehicle body frame 100 also includes a roof assembly, which includes a left side upper beam 91, a right side upper beam 92, a roof front cross beam 93, and a roof rear cross beam 94. The front end of the left side upper beam 91 is fixedly connected to the left A-pillar 31, and the rear end is fixedly connected to the left B-pillar 51. The front end of the right side upper beam 92 is fixedly connected to the right A-pillar 32, and the rear end is fixedly connected to the right B-pillar. The roof front cross beam 93 is located in front of the roof rear cross beam 94. The two ends of the roof front cross beam 93 are respectively fixedly connected to the left side upper beam 91 and the right side upper beam 92. The two ends of the roof rear cross beam 94 are respectively fixedly connected to the left side upper beam 91 and the right side upper beam 92, so that the roof assembly forms a frame structure that can effectively withstand loads and impact forces from all directions, thereby improving the overall strength and rigidity of the vehicle body frame 100, thereby improving the safety of the vehicle.

[0069] In some embodiments of the present invention, reference Figures 1-4 As shown, the roof cover assembly also includes a roof cover reinforcement longitudinal beam 95, which is connected between the roof cover front cross beam 93 and the roof cover rear cross beam 94, so that the roof cover assembly forms a "sun" shape structure, further strengthening the structural strength and stability of the roof cover assembly, improving the overall strength and rigidity of the vehicle body frame 100, and thus improving the safety of the vehicle.

[0070] In some embodiments of the present invention, reference Figures 1-4 As shown, the roof assembly also includes a left side rear side beam 96 and a right side rear side beam 97. The front end of the left side rear side beam 96 is fixedly connected to the left B-pillar 51, and the rear end is fixedly connected to the left rear tower seat 72, and forms a triangular structure with the left rear floor longitudinal beam 71, which has strong structural stability. The front end of the right side rear side beam 97 is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the right rear tower seat 75, and forms a triangular structure with the right rear floor longitudinal beam 74, which has strong structural stability, thereby improving the structural strength of the roof assembly, thereby improving the structural strength of the vehicle body frame 100, and better improving the safety of the vehicle.

[0071] Other structures and operations of the battery cover according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0072] Throughout this specification, references to terms such as "some embodiments," "optionally," "further," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0073] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A vehicle body frame, characterized in that: include: The front cabin assembly comprises: A front lower layer skeleton, the front lower layer skeleton comprising a front anti-collision beam assembly (11), a left front longitudinal beam (12), a right front longitudinal beam (13), and a front cabin cross beam, the front end of the left front longitudinal beam (12) being fixedly connected to the front anti-collision beam assembly (11), and the rear end being fixedly connected to the front cabin cross beam, the front end of the right front longitudinal beam (13) being fixedly connected to the front anti-collision beam assembly (11), and the rear end being fixedly connected to the front cabin cross beam; A front upper frame, wherein the front upper frame is fixedly connected to the upper side of the front lower frame, and the front upper frame comprises a front tower base cross beam (21), a front hood lock mounting bracket (22), a water tank upper cross beam (23), a left cabin upper side beam (24), and a right cabin upper side beam (25); the water tank upper cross beam (23) is located at the front end of the front tower base cross beam (21); two ends of the water tank upper cross beam (23) are respectively fixedly connected to the left cabin upper side beam (24) and the right cabin upper side beam (25); two ends of the front tower base cross beam (21) are respectively fixedly connected to the left cabin upper side beam (24) and the right cabin upper side beam (25); the front hood lock mounting bracket (22) is located between the left cabin upper side beam (24) and the right cabin upper side beam (25), and the front and rear ends are respectively fixedly connected to the water tank upper cross beam (23) and the front tower base cross beam (21).

2. The vehicle body frame (100) according to claim 1, characterized in that The front lower layer skeleton further comprises: a front panel reinforcement plate (15) and a cabin reinforcement beam, wherein the cabin reinforcement beam comprises a left cabin reinforcement beam (161) and a right cabin reinforcement beam (162), wherein one end of the left cabin reinforcement beam (161) is fixedly connected to the front panel reinforcement plate (15), and the other end is fixedly connected to the left front longitudinal beam (12), and one end of the right cabin reinforcement beam (162) is fixedly connected to the front panel reinforcement plate (15), and the other end is fixedly connected to the right front longitudinal beam (13).

3. The vehicle body frame (100) according to claim 2, characterized in that The left front longitudinal beam (12) includes a left front longitudinal beam front section (121), a left front longitudinal beam middle section (122), and a left front longitudinal beam rear section (123) which are sequentially connected from front to rear; the right front longitudinal beam (13) includes a right front longitudinal beam front section (131), a right front longitudinal beam middle section (132), and a right front longitudinal beam rear section (133) which are sequentially connected from front to rear. The front end of the left cabin reinforcement beam (161) is fixedly connected to the middle section (122) of the left front longitudinal beam, and the rear end is inclined toward the right side to be fixedly connected to the front panel reinforcement plate (15); The front end of the right cabin reinforcement beam (162) is fixedly connected to the middle section (132) of the right front longitudinal beam, and the rear end is inclined toward the left side to be fixedly connected to the front panel reinforcement plate (15).

4. The vehicle body frame (100) according to claim 1, characterized in that The front hatch lock mounting bracket (22) includes a left side support plate (221), a right side support plate (222) and a first connecting plate (223), wherein the left side support plate (221) and the right side support plate (222) are spaced apart from each other, and the first connecting plate (223) is connected between the left side support plate (221) and the right side support plate (222), and the front and rear ends of the left side support plate (221) are respectively fixedly connected to the water tank upper cross beam (23) and the front tower base cross beam (21), and the front and rear ends of the right side support plate (222) are respectively fixedly connected to the water tank upper cross beam (23) and the front tower base cross beam (21).

5. The vehicle body frame (100) according to claim 1, characterized in that The front cabin assembly further comprises: a left A-pillar (31), a right A-pillar (32), a left water tank column (33), a right water tank column (34), a left front cabin upper side beam connecting plate (35), a right front cabin upper side beam connecting plate (36), a left front tower base (37) and a right front tower base (38), The rear end of the left front longitudinal beam (12) is fixedly connected to the left A-pillar (31); the upper end of the left water tank column (33) is fixedly connected to the water tank upper cross beam (23), and the lower end is fixedly connected to the left front longitudinal beam (12); the upper end of the left front tower seat (37) is fixedly connected to the left cabin upper side beam (24), and the lower side is fixedly connected to the left front longitudinal beam (12); the left front cabin upper side beam connecting plate (35) is connected between the left cabin upper side beam (24) and the left A-pillar (31); The rear end of the right front longitudinal beam (13) is fixedly connected to the right A-pillar (32); the upper end of the right water tank column (34) is fixedly connected to the water tank upper cross beam (23), and the lower end is fixedly connected to the right front longitudinal beam (13); the upper end of the right front tower seat (38) is fixedly connected to the right cabin upper side beam (25), and the lower side is fixedly connected to the right front longitudinal beam (13); the right front cabin upper side beam connecting plate (36) is connected between the right cabin upper side beam (25) and the right A-pillar (32).

6. The vehicle body frame (100) according to claim 5, characterized in that The vehicle also includes a front floor assembly connected to the rear end of the front cabin assembly. The front floor assembly includes a left sill beam (41), a right sill beam (42), a front floor crossbeam, a front seat front crossbeam, and a front seat rear crossbeam. The front cabin crossbeam, the front floor crossbeam, the front seat front crossbeam, and the front seat rear crossbeam are sequentially spaced apart in the front-to-back direction. The upper side surface of the left side sill beam (41) is fixedly connected to the left A-pillar (31), and the right side surface of the left side sill beam (41) is fixedly connected to the rear end of the left front longitudinal beam (12); The upper side surface of the right side sill beam (42) is fixedly connected to the right A-pillar (32), and the left side surface of the right side sill beam (42) is fixedly connected to the rear end of the right front longitudinal beam (13); The left and right sides of the front cabin cross beam are respectively fixedly connected to the left front longitudinal beam (12) and the right front longitudinal beam (13); The two ends of the front floor crossbeam are respectively fixedly connected to the left side door sill beam (41) and the right side door sill beam (42); The two ends of the front cross beam of the front seat are respectively fixedly connected to the left side door sill beam (41) and the right side door sill beam (42); The two ends of the front seat rear cross beam are respectively fixedly connected to the left side door sill beam (41) and the right side door sill beam (42).

7. The vehicle body frame (100) according to claim 6, characterized in that The front floor assembly further comprises a middle channel (47), the front end of the middle channel (47) being fixedly connected to the front panel, and the rear end being fixedly connected to the rear panel. The front cabin cross beam comprises a left front cabin cross beam (141) and a right front cabin cross beam (142) connected to the left and right sides of the middle channel (47); The front floor crossbeam includes a left front floor crossbeam (441) and a right front floor crossbeam (442) connected to the left and right sides of the middle channel (47); The front seat front cross beam comprises a left front seat front cross beam (451) and a right front seat front cross beam (452) connected to the left and right sides of the middle channel (47); The front seat rear cross beam comprises a left front seat rear cross beam (461) and a right front seat rear cross beam (462) connected to the left and right sides of the central channel (47).

8. The vehicle body frame (100) according to claim 7, characterized in that The cross section of the middle channel (47) is a U-shaped structure with an opening facing downward. The front floor assembly further comprises a middle channel reinforcement plate (48), and the middle channel reinforcement plate (48) is installed at the opening of the middle channel (47).

9. The vehicle body frame (100) according to claim 6, characterized in that: Also includes: A rear enclosure assembly is connected to the rear end of the front floor assembly, and comprises: a left B-pillar (51), a right B-pillar, a rear enclosure lower crossbeam (53), a rear enclosure middle crossbeam (54), and a rear enclosure upper crossbeam (55). The left side sill beam (41) has a left side connecting section, the left end of the front seat rear cross beam is connected to the right side of the left side connecting section, and the lower end of the left side B pillar (51) is connected to the upper side of the left side connecting section; The right side sill beam (42) has a right side connecting section, the right end of the front seat rear cross beam is connected to the left side of the right side connecting section, and the lower end of the right side B pillar is connected to the upper side of the right side connecting section; The rear enclosure lower cross beam (53), the rear enclosure middle cross beam (54) and the rear enclosure upper cross beam (55) are sequentially spaced from bottom to top and are all connected between the left B-pillar (51) and the right B-pillar.

10. The vehicle body frame (100) according to claim 9, characterized in that Also includes: A rear floor assembly connected to the rear end of the rear enclosure assembly, comprising: The rear lower frame comprises: a left rear longitudinal beam (61), a right rear longitudinal beam (62), a rear anti-collision beam (63), a luggage compartment cross beam (64), a rear tower seat lower cross beam (65) and a rear floor middle cross beam (66), The front end of the left rear longitudinal beam (61) is fixedly connected to the rear end of the left sill beam (41), and the rear end is fixedly connected to the left side of the rear anti-collision beam (63); The front end of the right rear longitudinal beam (62) is fixedly connected to the rear end of the right sill beam (42), and the rear end is fixedly connected to the right side of the rear anti-collision beam (63); The luggage box cross beam (64), the rear tower seat lower cross beam (65) and the rear floor middle cross beam (66) are sequentially spaced from the rear to the front and are all connected between the left rear longitudinal beam (61) and the right rear longitudinal beam (62).

11. The vehicle body frame (100) according to claim 10, characterized in that The rear floor assembly further includes a rear upper frame, which is fixedly connected to the upper side of the rear lower frame. The rear upper frame includes: Left rear floor upper longitudinal beam (71), left rear tower base (72), left rear floor rear longitudinal beam (73), right rear floor upper longitudinal beam (74), right rear tower base (75), right rear floor rear longitudinal beam (76), rear tower base upper cross beam (77) and rear tail reinforcement plate (78); The front end of the left rear floor upper longitudinal beam (71) is fixedly connected to the left B-pillar (51), and the rear end is fixedly connected to the upper end of the left rear tower seat (72); the lower end of the left rear tower seat (72) is fixedly connected to the left rear longitudinal beam (61); the front end of the left rear floor rear longitudinal beam (73) is fixedly connected to the upper end of the left rear tower seat (72), and the rear end is fixedly connected to the left end of the rear tail reinforcement plate (78); The front end of the right rear floor upper longitudinal beam (74) is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the upper end of the right rear tower seat (75); the lower end of the right rear tower seat (75) is fixedly connected to the right rear longitudinal beam (62); the front end of the right rear floor rear longitudinal beam (76) is fixedly connected to the upper end of the right rear tower seat (75), and the rear end is fixedly connected to the right end of the rear tail reinforcement plate (78); The two ends of the rear tower seat upper cross beam (77) are respectively fixedly connected to the left rear tower seat (72) and the right rear tower seat (75).

12. The vehicle body frame (100) according to claim 11, characterized in that The rear floor assembly further comprises a second connecting plate (79), wherein the second connecting plate (79) is connected between the rear wing reinforcement plate (78) and the rear anti-collision beam (63).

13. The vehicle body frame (100) according to claim 11, characterized in that The rear floor assembly further comprises: a left rear floor middle longitudinal beam (81), a right rear floor middle longitudinal beam, a left rear longitudinal beam upright post (83) and a right rear longitudinal beam upright post. The left rear floor middle longitudinal beam (81) is located at the lower end of the left rear floor upper longitudinal beam (71), the front end of the left rear floor middle longitudinal beam (81) is fixedly connected to the left B-pillar (51), and the rear end is fixedly connected to the left rear longitudinal beam (61); The right rear floor middle longitudinal beam is located at the lower end of the right rear floor upper longitudinal beam (74), the front end of the right rear floor middle longitudinal beam is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the right rear longitudinal beam (62); The upper end of the left rear longitudinal beam column (83) is fixedly connected to the left rear floor longitudinal beam (73), and the lower end is fixedly connected to the left rear longitudinal beam (61); The upper end of the right side rear longitudinal beam column is fixedly connected to the right side rear floor rear longitudinal beam (76), and the lower end is fixedly connected to the right side rear longitudinal beam (62).

14. The vehicle body frame (100) according to claim 11, characterized in that It also includes: a roof assembly, the roof assembly including: a left side upper side beam (91), a right side upper side beam (92), a roof front cross beam (93), and a roof rear cross beam (94). The front end of the left side upper side beam (91) is fixedly connected to the left A-pillar (31), and the rear end is fixedly connected to the left B-pillar (51); The front end of the right side upper side beam (92) is fixedly connected to the right A-pillar (32), and the rear end is fixedly connected to the right B-pillar; The front cross beam (93) of the roof cover is located in front of the rear cross beam (94) of the roof cover, and the two ends of the front cross beam (93) of the roof cover are respectively fixedly connected to the left side upper beam (91) and the right side upper beam (92), and the two ends of the rear cross beam (94) of the roof cover are respectively fixedly connected to the left side upper beam (91) and the right side upper beam (92).

15. The vehicle body frame (100) according to claim 14, characterized in that The roof assembly further comprises a roof reinforcement longitudinal beam (95), wherein the roof reinforcement longitudinal beam (95) is connected between the roof front cross beam (93) and the roof rear cross beam (94).

16. The vehicle body frame (100) according to claim 14, characterized in that The roof assembly further comprises: a left side rear side beam (96) and a right side rear side beam (97), wherein the front end of the left side rear side beam (96) is fixedly connected to the left B-pillar (51), and the rear end is fixedly connected to the left rear tower seat (72); the front end of the right side rear side beam (97) is fixedly connected to the right B-pillar, and the rear end is fixedly connected to the right rear tower seat (75).

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