Vehicle body frame and vehicle

Abstract

The application discloses a vehicle body framework and a vehicle, and relates to the technical field of vehicle body frameworks, in particular to a vehicle body framework and a vehicle. The vehicle body framework comprises a front engine compartment module, a front floor module and a rear floor module which are sequentially connected in the front-rear direction, the front engine compartment module comprises engine compartment lower longitudinal beams arranged on both sides and a front wall lower cross beam arranged at the end of the engine compartment lower longitudinal beams, the front floor module comprises a front floor front cross beam arranged at the front end of a front floor template and rocker beams arranged at the ends of the front floor front cross beam, the rear floor module comprises rear floor longitudinal beams arranged at the rear end of the front floor module and wheel cover framework assemblies arranged on the rear floor longitudinal beams, a force transmission beam is arranged between the front wall lower cross beam and the front floor front cross beam, and a connecting piece is arranged between the rocker beam and the corresponding rear floor longitudinal beam. According to the vehicle body framework, the structural strength of the vehicle body framework can be improved, the force transmission effect after the vehicle body framework is impacted can be improved, and the overall performance of the vehicle can be improved.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more particularly to a vehicle body frame and a vehicle. Background Technology

[0002] In related technologies, the longitudinal beams of the vehicle body frame extend from the front to the rear of the vehicle, and other components of the vehicle body frame are gradually installed onto the longitudinal beams, resulting in poor force transmission between the front engine compartment module and the front floor module. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a vehicle body frame that can improve the structural strength of the vehicle body frame, enhance the force transmission effect after a collision, and improve the overall performance of the vehicle.

[0004] The present invention also proposes a vehicle having the above-described vehicle body frame.

[0005] According to a first aspect of the present invention, a vehicle body frame includes: a front engine compartment module, the front engine compartment module including lower engine compartment longitudinal beams disposed on both sides and a front bulkhead lower crossbeam disposed at the end of the lower engine compartment longitudinal beams; a front floor module, the front floor module including a front floor front crossbeam disposed at the front end of the front floor module and sill beams disposed at both ends of the front floor front crossbeam; and a rear floor module, the rear floor module including a rear floor longitudinal beam disposed at the rear end of the front floor module and a wheel arch frame assembly disposed on the rear floor longitudinal beam; wherein, along the longitudinal direction of the vehicle body, the front engine compartment module is disposed in front of the front floor module, the front bulkhead lower crossbeam and the front floor front crossbeam are disposed vertically spaced apart, and a force transmission beam is disposed between the front bulkhead lower crossbeam and the front floor front crossbeam; and the rear floor module is disposed behind the front floor module, and a connecting member is disposed between the sill beams on both sides and the rear floor longitudinal beam.

[0006] According to the vehicle body frame of the present invention, by providing a force transmission beam for connecting the lower crossbeam of the front bulkhead and the front crossbeam of the front floor, and a connector for connecting the sill beam and the longitudinal beam of the rear floor, the structural strength of the vehicle body frame can be improved, the force transmission effect of the vehicle body frame after a collision can be improved, and the overall performance of the vehicle can be improved.

[0007] According to some embodiments of the present invention, in the front-to-back direction, the lower front crossbeam is located in front of the front floor crossbeam, and the angle between the central axis of the force transmission beam and the horizontal plane is not less than 35° and not greater than 45°.

[0008] According to some embodiments of the present invention, the force transmission beam has a mating groove at one end near the lower front crossbeam, the mating groove opening toward the lower front crossbeam along the central axis of the force transmission beam, and the lower front crossbeam being engaged in the mating groove and abutting against the side wall of the mating groove.

[0009] According to some embodiments of the present invention, the connector includes a front side plate, a middle plate, and a rear side plate. The front side plate is connected to the front side of the middle plate and has a first connection position for connecting with a sill beam. The rear side plate is connected to the rear side of the middle plate and has a second connection position for connecting with a rear floor longitudinal beam.

[0010] According to some embodiments of the present invention, the front panel includes a front vertical sub-panel and a front horizontal sub-panel. The front vertical sub-panel and the front horizontal sub-panel together with the middle panel define a first connecting space. The sill beam passes through the first connecting space and abuts against the inner wall of the first connecting space. The front vertical sub-panel and / or the front horizontal sub-panel are provided with the first connecting position.

[0011] According to some embodiments of the present invention, the rear panel includes a rear vertical sub-panel and a rear horizontal sub-panel. The rear vertical sub-panel and the rear horizontal sub-panel together with the intermediate panel define a second connecting space. The rear floor longitudinal beam passes through the second connecting space and abuts against the inner wall of the second connecting space. The rear vertical sub-panel and / or the rear horizontal sub-panel are provided with the second connecting position.

[0012] According to some embodiments of the present invention, the front floor module further includes: a support beam, the support beam extending in the front-rear direction, the support beam being two in number and respectively connected to the left and right ends of the front crossbeam of the front floor, the support beam being used to support the corresponding lower longitudinal beam of the cabin.

[0013] According to some embodiments of the present invention, the front floor module further includes: a first reinforcing beam, the first reinforcing beam being inclined in the front-rear direction, one end of the first reinforcing beam being connected to the front part of the support beam, and the other end of the first reinforcing beam being connected to the front part of the sill beam.

[0014] In some embodiments of the present invention, the cabin frame assembly further includes: A-pillars and a front upper crossbeam, wherein there are two A-pillars and each is connected to the sill beam, the front upper crossbeam is connected between the two A-pillars and spaced apart from the sill beam, and the front upper crossbeam is connected between the two A-pillars through an adapter and is located at the top of the A-pillars.

[0015] In some embodiments of the present invention, the adapter has a first mounting surface and a second mounting surface, the first mounting surface being fitted and connected to the upper end of the A-pillar, and the second mounting surface being fitted and connected to one end of the front upper crossbeam along its length.

[0016] In some embodiments of the present invention, the vehicle body frame further includes a front windshield side beam, which is disposed at the left and right ends of the windshield of the vehicle and is used to support the windshield. The front windshield side beam is connected to the A-pillar through the adapter, the adapter having a mounting groove, and the front end of the front windshield side beam is located in the mounting groove.

[0017] In some embodiments of the present invention, the nacelle frame assembly further includes: an upper longitudinal beam, a front column, and a vibration damping tower. The front column is connected to the front part of the lower longitudinal beam, and the upper longitudinal beam is connected between the front column and the A-pillar. The vibration damping tower is connected between the upper and lower longitudinal beams, and has a first connecting surface. The upper longitudinal beam has a second connecting surface, the first connecting surface and the second connecting surface are opposite to and connected, and the first connecting surface is set at an angle to the vertical direction.

[0018] According to some embodiments of the present invention, the upper longitudinal beam of the cabin includes an upper longitudinal beam body and a support member, the support member being connected to the side of the upper longitudinal beam body facing the vibration damping tower, the support member being connected to the vibration damping tower, and the support member and the upper longitudinal beam body jointly defining a support cavity; or, the support member defining a support cavity.

[0019] According to some embodiments of the present invention, the vibration damping tower includes a vibration damping tower body and a connecting plate. The vibration damping tower body is connected to the upper longitudinal beam of the nacelle, and the connecting plate is connected to the bottom of the vibration damping tower body and to the side of the lower longitudinal beam of the nacelle away from the upper longitudinal beam of the nacelle.

[0020] According to some embodiments of the present invention, a portion of the vibration damping tower body protrudes toward the upper longitudinal beam of the nacelle to form a bulge, and the bulge abuts against the surface of the lower longitudinal beam of the nacelle in the vertical direction.

[0021] According to some embodiments of the present invention, the cabin frame module further includes force-sharing beams, each of the cabin lower longitudinal beams corresponds to two force-sharing beams, the two force-sharing beams are respectively disposed on the left and right sides of the corresponding cabin lower longitudinal beam, and each force-sharing beam is inclined from front to back and connected between the corresponding cabin lower longitudinal beam and the front lower crossbeam.

[0022] According to some optional embodiments of the present invention, the rear floor module further includes a plurality of rear floor crossbeams, two rear floor longitudinal beams extending in the front-rear direction, the two rear floor longitudinal beams being spaced apart in the left-right direction, and the plurality of rear floor crossbeams being spaced apart in the front-rear direction and connected between the two rear floor longitudinal beams.

[0023] In some embodiments of the present invention, the wheel arch frame assembly includes an upper wheel arch beam and a plurality of wheel arch support beams. The upper wheel arch beam is located above the rear floor longitudinal beam and is spaced apart from the rear floor longitudinal beam in the left-right direction. The wheel arch support beams connect the upper wheel arch beam and the rear floor longitudinal beam, and the plurality of wheel arch support beams are arranged at intervals in the front-rear direction.

[0024] In some embodiments of the present invention, the plurality of wheel arch support beams include a backup support beam, one end of which is connected to the rear part of the upper side beam of the wheel arch, and the other end of which is connected to the rear part of the rear floor longitudinal beam. A rear upper crossbeam is connected between the two backup support beams.

[0025] A vehicle according to a second aspect of the present invention includes: a vehicle body frame according to the first aspect of the present invention described above.

[0026] According to the present invention, the vehicle's collision performance and overall performance can be improved through the aforementioned body frame.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a schematic diagram of a vehicle body frame according to some embodiments of the present invention;

[0030] Figure 2 yes Figure 1 A partial structural diagram of the vehicle's frame;

[0031] Figure 3 yes Figure 2 A schematic diagram of a portion of the car body frame structure from another perspective;

[0032] Figure 4 yes Figure 1 A schematic diagram of the front floor module in the middle;

[0033] Figure 5 yes Figure 1 A schematic diagram of another part of the vehicle body frame structure;

[0034] Figure 6 yes Figure 1 A schematic diagram of another part of the body frame structure;

[0035] Figure 7 yes Figure 4 A three-dimensional view of the connectors in the diagram;

[0036] Figure 8 yes Figure 4 A three-dimensional view of the connector from another perspective;

[0037] Figure 9 yes Figure 1 Enlarged view at point E in the middle;

[0038] Figure 10 A partial schematic diagram of the cabin module;

[0039] Figure 11 yes Figure 9 A schematic diagram of a partial structure of the cabin module;

[0040] Figure 12 yes Figure 9 A schematic diagram of a partial structure of the cabin module from another perspective.

[0041] Figure label:

[0042] 100. Vehicle body frame;

[0043] 10. Forward nacelle module;

[0044] 11. Lower longitudinal beam of the nacelle; 111. First beam; 112. Second beam; 12. Lower transverse beam of the front bulkhead; 121. First mating surface; 122. Second mating surface; 13. A-pillar; 14. Upper transverse beam of the front bulkhead; 15. Upper longitudinal beam of the nacelle; 151. Upper longitudinal beam body; 152. Support component; 153. Support cavity; 16. Forward upright of the nacelle; 17. Forward transverse beam of the nacelle; 18. Front bumper beam;

[0045] 21. Second reinforcing beam; 22. Component beam; 23. Transmission beam; 231. Mating groove; 24. Adapter; 241. First mounting surface; 242. Second mounting surface; 243. Mounting groove; 25. Vibration damping tower; 251. Vibration damping tower body; 2511. Protrusion; 252. Connecting plate; 253. Connecting skirt; 26. First tie rod; 27. Second tie rod; 28. Third tie rod; 29. ​​Upper crossbeam of the nacelle;

[0046] 30. Front floor module;

[0047] 31. Threshold beam; 32. Connector; 321. Front side panel; 3211. Front vertical sub-panel; 3212. Front horizontal sub-panel; 3213. First reinforcing rib; 3214. First vertical reinforcing rib; 3215. First arc-shaped reinforcing rib;

[0048] 322. Middle plate section;

[0049] 323. Rear side panel; 3231. Rear vertical sub-panel; 3232. Rear horizontal sub-panel; 3233. Second reinforcing rib; 3234. Second vertical reinforcing rib; 3235. Second arc-shaped reinforcing rib;

[0050] 41. Front floor crossbeam; 411. Clearance gap; 42. Front seat mounting beam; 43. Rear seat front mounting beam; 44. Front floor reinforcement crossbeam;

[0051] 51. Support beam; 52. First reinforcing beam;

[0052] 61. First front longitudinal beam; 62. Second front longitudinal beam; 63. Third front longitudinal beam;

[0053] 70. Rear floor module;

[0054] 71. Rear floor longitudinal beam; 72. Rear floor transverse beam; 73. Rear bumper beam; 74. Rear bumper upper transverse beam;

[0055] 80. Wheel arch frame assembly;

[0056] 81. Upper side beam of wheel arch; 82. Front support beam; 83. Rear backup support beam; 84. Wheel arch panel connecting beam. Detailed Implementation

[0057] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0058] The vehicle body frame 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0059] Reference Figures 1-5 According to a first aspect of the present invention, the vehicle body frame 100 includes: a front engine compartment module 10, a front floor module 30 and a rear floor module 70. The front engine compartment module 10 includes a lower engine compartment longitudinal beam 11 and a lower front bulkhead crossbeam 12. There are two lower engine compartment longitudinal beams 11, which are spaced apart in the left and right direction. The lower front bulkhead crossbeam 12 is connected to the ends of the two lower engine compartment longitudinal beams 11.

[0060] The front floor module 30 includes a front floor front crossbeam 41 and a sill beam 31. There are two sill beams 31, which are spaced apart in the left and right direction. The front floor front crossbeam 41 is located at the front end of the front floor module 30 and is connected between the two sill beams 31. The rear floor module 70 includes a rear floor longitudinal beam 71 and a wheel arch frame assembly 80. There are two rear floor longitudinal beams 71, which are spaced apart in the left and right direction. Each sill beam 31 has a corresponding rear floor longitudinal beam 71 at its rear end. There are two wheel arch frame assemblies 80, which are respectively located on the corresponding rear floor longitudinal beams 71.

[0061] In the longitudinal direction of the vehicle body, the front engine compartment module 10 is located in front of the front floor module 30, the lower crossbeam 12 of the front bulkhead and the front crossbeam 41 of the front floor are spaced vertically apart, and a force transmission beam 23 is provided between the lower crossbeam 12 of the front bulkhead and the front crossbeam 41 of the front floor; the rear floor module 70 is located behind the front floor module 30, and a connector 32 is provided between the sill beams 31 on both sides and the longitudinal beams 71 of the rear floor.

[0062] When a vehicle is subjected to a frontal collision, the lower longitudinal beam 11 of the engine compartment can transfer the collision force to the lower crossbeam 12 of the front bulkhead. The lower crossbeam 12 of the front bulkhead can transfer part of the collision force to the front crossbeam 41 of the front floor through the force transmission beam 23. The front crossbeam 41 of the front floor can transfer the collision force to the rear longitudinal beam 71 through the sill beam 31 and the connector 32. This allows the front engine compartment module 10, the front floor module 30 and the rear floor module 70 to absorb part of the collision energy, improve the force transmission performance of the vehicle frame 100, reduce the crumple amount of the front engine compartment module 10, reduce the intrusion of the vehicle frame 100 toward the passenger compartment, and improve the collision performance of the vehicle.

[0063] For example, refer to Figures 1-3 According to some embodiments of the present invention, there are multiple force transmission beams 23, which are arranged at intervals in the left-right direction. For example, the number of force transmission beams 23 can be two, three, or four. By setting multiple force transmission beams 23, the impact force on each force transmission beam 23 can be reduced, thereby improving the load-bearing capacity of the vehicle frame 100. At the same time, the multiple force transmission beams 23 can form multiple force transmission cycles with the front floor front crossbeam 41 and the front bulkhead lower crossbeam 12, thereby improving the energy absorption effect of the vehicle frame 100, reducing the intrusion of the vehicle frame 100 toward the cab, and improving the overall performance of the vehicle frame 100.

[0064] Furthermore, by setting multiple force transmission beams 23 to connect the front floor front crossbeam 41 and the front bulkhead lower crossbeam 12, the connection between the front floor front crossbeam 41, the force transmission beams 23 and the front bulkhead lower crossbeam 12 can be made more reliable, thereby improving the structural strength of the front floor front crossbeam 41, the force transmission beams 23 and the front bulkhead lower crossbeam 12, improving the torsional performance of the vehicle and improving the overall performance of the vehicle.

[0065] By connecting the sill beam 31 and the rear floor longitudinal beam 71 with the connector 32, the sill beam 31, the rear floor longitudinal beam 71 and the connector 32 can be connected as a whole, increasing the connection strength between the sill beam 31 and the rear floor longitudinal beam 71, so that the front floor module 30 and the rear floor module 70 can transmit force more smoothly and reliably, improving the structural strength of the body frame 100 and improving the force transmission effect of the body frame 100 after a collision.

[0066] Compared to directly connecting the lower longitudinal beam 11 of the engine compartment to the sill beam 31, connecting the lower longitudinal beam 11 of the engine compartment to the front floor crossbeam 41 eliminates the need to bend the lower longitudinal beam 11 to avoid front wheel movement space. This allows the extension direction of the lower longitudinal beam 11 to be roughly parallel to the front-rear direction, resulting in fewer structural features in the lower longitudinal beam 11. This reduces the manufacturing difficulty of forming the lower longitudinal beam 11, increases production efficiency, lowers production cost, and improves the overall performance of the vehicle.

[0067] Meanwhile, the extension direction of the lower longitudinal beam 11 of the engine compartment is set to be roughly parallel to the front and rear directions. This allows the lower longitudinal beam 11 of the engine compartment to quickly transfer the impact force to the front floor crossbeam 41, and the front engine compartment module 10 to quickly transfer the impact force to the front floor module 30, thereby improving the force transmission performance of the body frame 100 and improving the overall performance of the body frame 100.

[0068] For example, connector 32 can be a cast aluminum part, meaning it is formed by casting. Cast aluminum parts can be made into complex and varied shapes. Through complex and varied appearances and ribs, connector 32 can be firmly connected to sill beam 31 and rear floor longitudinal beam 71, resulting in good force transmission, higher relative welding strength, and a simpler connection process. Therefore, by using the cast aluminum process, the number of parts is reduced, the welding process is simplified, development costs are reduced, safety performance is improved, vehicle weight is reduced, and driving range is increased.

[0069] For example, the front engine compartment module 10, the front floor module 30, and the rear floor module 70 are formed independently. That is, the production of one of the front engine compartment module 10, the front floor module 30, and the rear floor module 70 is not affected by the other modules. In this way, the front engine compartment module 10, the front floor module 30, and the rear floor module 70 can be formed on multiple separate production lines, and then assembled together on the main production line. This improves the production efficiency of the body frame 100 and reduces the production cost of the body frame 100.

[0070] By setting the body frame 100 as multiple frame modules, each frame module includes fewer parts, which makes each frame module smaller in size and lighter in weight. This makes it easier to flip and transfer each frame module, reducing the production difficulty of each frame module and the process difficulty of producing the body frame 100. It also makes it easier to splice multiple frame modules together and improves the production efficiency of the body frame 100.

[0071] Specifically, the front engine compartment module 10, the front floor module 30, and the rear floor module 70 can all be made of extruded aluminum profiles. The body frame 100 is formed by assembling and connecting the front engine compartment module 10, the front floor module 30, and the rear floor module 70. This can reduce the number of parts in the body frame 100 that need to be molded, thereby reducing the R&D cost of the body frame 100. Moreover, the cost of extruded profiles is relatively low, which reduces the production cost of the body frame 100 and improves the overall performance of the body frame 100.

[0072] According to the present invention, the vehicle body frame 100 is provided with a force transmission beam 23 for connecting the lower front crossbeam 12 and the front floor crossbeam 41, and a connector 32 for connecting the sill beam 31 and the rear floor longitudinal beam 71, which can improve the structural strength of the vehicle body frame 100, improve the force transmission effect of the vehicle body frame 100 after a collision, and improve the overall performance of the vehicle.

[0073] Reference Figure 1 , Figure 2 and Figure 6 In some embodiments of the present invention, in the front-to-back direction, the lower front crossbeam 12 is located in front of the front floor crossbeam 41, and the angle between the central axis of the force transmission beam 23 and the horizontal plane is not less than 35° and not greater than 45°. For example, the angle β between the central axis of the force transmission beam 236 and the horizontal plane can be 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, or 45°.

[0074] The force transmitted from the force transmission beam 23 to the front floor crossbeam 41 is generally parallel to the central axis of the force transmission beam 23. Since the angle β between the central axis of the force transmission beam 23 and the horizontal plane is no greater than 45°, the horizontal component of the force transmitted from the force transmission beam 23 to the front floor crossbeam 41 is smaller, thereby reducing the tendency of the front floor crossbeam 41 to twist, improving the torsional performance of the vehicle frame 100, and improving the overall performance of the vehicle frame 100.

[0075] At the same time, this allows the front floor crossbeam 41 and the front lower crossbeam 12 to be closer in the front-rear direction, making the overall structure of the body frame 100 more compact, the length of the force transmission beam 23 shorter, reducing the production cost of the body frame 100, improving the overall performance of the body frame 100, and improving the overall performance of the vehicle.

[0076] Reference Figure 1 , Figure 2 and Figure 6 In some embodiments of the present invention, the force transmission beam 23 has a mating groove 231 at one end near the lower front crossbeam 12. The mating groove 231 opens toward the lower front crossbeam 12 along the central axis of the force transmission beam 23. The lower front crossbeam 12 is engaged in the mating groove 231 and abuts against the side wall of the mating groove 231.

[0077] This allows the sidewall of the mating groove 231 to limit the movement of the lower front crossbeam 12, effectively preventing the lower front crossbeam 12 from shifting relative to the force transmission beam 23. This ensures that the lower front crossbeam 12 can reliably transmit the impact force from the lower engine compartment longitudinal beam 11 to the force transmission beam 23, thereby enabling the lower front crossbeam 12 to reliably transmit the impact force from the lower engine compartment longitudinal beam 11 to the front floor module 30. This improves the reliability of force transmission in the body frame 100 and enhances the overall performance of the body frame 100.

[0078] For example, refer to Figure 1 , Figure 2 and Figure 6 In some specific embodiments of the present invention, the lower front crossbeam 12 has a first mating surface 121 and a second mating surface 122 connected together. The first mating surface 121 is parallel to the horizontal plane, the second mating surface 122 is parallel to the vertical plane, and the second mating surface 122 is perpendicular to the front-rear direction. The mating groove 231 is generally V-shaped, and the first mating surface 121 and the second mating surface 122 respectively abut against the side wall of the mating groove 231.

[0079] When the lower front beam 12 is subjected to a force parallel to and horizontally, the lower front beam 12 can transmit the horizontal force to the side wall of the corresponding mating groove 231 through the second mating surface 122, so that the lower front beam 12 can reliably transmit the horizontal force to the force transmission beam 23; when the lower front beam 12 is subjected to a force parallel to and vertically, the lower front beam 12 can transmit the vertical force to the side wall of the corresponding mating groove 231 through the first mating surface 121, so that the lower front beam 12 can reliably transmit the vertical force to the force transmission beam 23.

[0080] Compared to setting the force transmission beam 23 and the lower front crossbeam 12 to abut only in the vertical direction (or setting the force transmission beam 23 and the lower front crossbeam 12 to abut only in the vertical direction), when the lower front crossbeam 12 is subjected to a force in the vertical direction (or a force in the horizontal direction), this can effectively reduce the shear force at the connection between the force transmission beam 23 and the lower front crossbeam 12, making the connection between the force transmission beam 23 and the lower front crossbeam 12 more reliable, extending the service life of the body frame 100, and improving the reliability of the body frame 100.

[0081] Meanwhile, by opening a slot on the end face of the force transmission beam 23 that connects to the lower front crossbeam 12, and by abutting the first mating surface 121 and the second mating surface 122 against the side wall of the mating slot 231 respectively, when the lower front crossbeam 12 and the force transmission beam 23 are welded together, the welding length between the lower front crossbeam 12 and the force transmission beam 23 can be extended, thereby increasing the connection strength between the lower front crossbeam 12 and the force transmission beam 23, making the lower front crossbeam 12 and the force transmission beam 23 more reliably connected, and improving the overall structural reliability of the body frame 100.

[0082] Reference Figures 1-3 In some embodiments of the present invention, in the longitudinal direction, each lower longitudinal beam 11 of the cabin corresponds to a force transmission beam 23. The lower longitudinal beam 11 of the cabin includes a first beam body 111 and a second beam body 112. The rear end of the first beam body 111 abuts against the lower crossbeam 12 of the front bulkhead. The second beam body 112 is connected to the bottom of the first beam body 111. The second beam body 112 abuts against the force transmission beam 23. For example, the second beam body 112 is supported on a support frame and connected to the support frame. The second beam body 112 abuts against the surface of the force transmission beam 23.

[0083] When a vehicle collision occurs, a portion of the collision force transmitted to the lower longitudinal beam 11 of the engine compartment can be transmitted through the first beam 111 to the lower crossbeam 12 of the front bulkhead, and then from the lower crossbeam 12 to the force transmission beam 23, and then from the force transmission beam 23 to the front floor crossbeam 41; a portion of the collision force transmitted to the lower longitudinal beam 11 of the engine compartment can be transmitted through the second beam 112 to the force transmission beam 23, and then from the force transmission beam 23 to the front floor crossbeam 41.

[0084] By setting the first beam 111 and the second beam 112 to connect the lower front crossbeam 12 and the force transmission beam 23, the force transmission path between the engine compartment frame assembly and the front floor frame assembly can be increased, so that the engine compartment frame assembly can reliably and smoothly transmit the collision force to the floor frame assembly; the collision force of the lower front crossbeam 12 can be reduced, the tendency of the lower front crossbeam 12 to twist relative to the force transmission beam 23 can be reduced, the torsional performance of the body frame 100 can be improved, and the overall performance of the body frame 100 can be improved.

[0085] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8In some embodiments of the present invention, the connector 32 includes a front side plate 321, a middle plate 322, and a rear side plate 323. The front side plate 321 is connected to the front side of the middle plate 322. The front side plate 321 is provided with a first connection position for connecting with the sill beam 31. For example, the front side plate 321 can abut against the surface of the sill beam 31 in both the vertical and horizontal directions. This ensures that the sill beam 31 can be smoothly and securely connected to the connector 32, so that the sill beam 31 can be reliably fixed relative to the connector 32, thereby improving the reliability of the vehicle frame 100.

[0086] The rear side panel 323 is connected to the rear side of the middle panel 322. The rear side panel 323 is provided with a second connection position for connecting with the rear floor longitudinal beam 71. For example, the rear side panel 323 can abut against the rear floor longitudinal beam 71 in the vertical and horizontal directions. This ensures that the rear floor longitudinal beam 71 can be smoothly and securely connected to the connecting member 32, so that the rear floor longitudinal beam 71 can be reliably fixed relative to the connecting member 32, thereby improving the reliability of the vehicle frame 100.

[0087] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 In some embodiments of the present invention, the front panel 321 includes a front vertical sub-plate 3211 and a front horizontal sub-plate 3212. The front vertical sub-plate 3211 and the front horizontal sub-plate 3212, together with the middle panel 322, define a first connecting space. The sill beam 31 passes through the first connecting space and abuts against the inner wall of the first connecting space. The front vertical sub-plate 3211 and / or the front horizontal sub-plate 3212 are provided with a first connecting position. This provides installation space for the sill beam 31, ensuring that the sill beam 31 can be smoothly and securely connected to the connector 32.

[0088] For example, the front side panel 321 may also include a first reinforcing rib 3213, a first vertical reinforcing rib 3214, and a first arc-shaped reinforcing rib 3215. The top of the front vertical sub-plate 3211 is constructed as an arc-shaped structure along the front-rear direction. Multiple first reinforcing ribs 3213 are provided, and the multiple first reinforcing ribs 3213 are distributed at intervals along the front-rear direction on the upper side of the first connecting space. Each first reinforcing rib 3213 is connected to the front vertical sub-plate 3211 and the front horizontal sub-plate 3212. This can improve the structural strength of the front side panel 321, make the connection between the connector 32 and the sill beam 31 more solid, and improve the structural strength of the body frame 100 assembly.

[0089] The first reinforcing rib 3213 is constructed as an approximately right-angled trapezoid, with its two right-angled sides connected to the front horizontal sub-plate 3212 and the front vertical sub-plate 3211, respectively. The inclined surface extends from the left and right ends of the front horizontal sub-plate 3212 to the top of the front vertical sub-plate 3211. This ensures a stronger connection between the first reinforcing rib 3213 and the front plate 321, thereby guaranteeing the installation effect of the first reinforcing rib 3213. At the same time, the inclined side can guide the impact force, thus facilitating the transmission of the impact force.

[0090] Multiple first vertical reinforcing ribs 3214 and first arc-shaped reinforcing ribs 3215 are provided and connected to the side of the front vertical sub-plate 3211 opposite to the front horizontal sub-plate 3212. The first vertical reinforcing rib 3214 extends from the top end to the bottom end of the front vertical sub-plate 3211, and the first arc-shaped reinforcing rib 3215 extends obliquely downward from one end of the front vertical sub-plate 3211 near the middle plate portion 322 to the other end of the front vertical sub-plate 3211. The first vertical reinforcing ribs 3214 and first arc-shaped reinforcing ribs 3215 are intersected and define a concave cavity structure. This can further improve the structural strength and stress effect between the front plate portion 321 and the middle plate portion 322, and improve the impact resistance and force guidance ability of the connector 32.

[0091] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 In some embodiments of the present invention, the rear panel 323 includes a rear vertical sub-plate 3231 and a rear horizontal sub-plate 3232. The rear vertical sub-plate 3231 and the rear horizontal sub-plate 3232, together with the intermediate panel 322, define a second connecting space. The rear floor longitudinal beam 71 passes through the second connecting space and abuts against the inner wall of the second connecting space. The rear vertical sub-plate 3231 and / or the rear horizontal sub-plate 3232 are provided with second connecting positions. This provides installation space for the rear floor longitudinal beam 71, ensuring that the rear floor longitudinal beam 71 can be smoothly and securely connected to the connector 32.

[0092] For example, the rear side panel 323 may also include a second reinforcing rib 3233, a second vertical reinforcing rib 3234, and a second arc-shaped reinforcing rib 3235. The rear horizontal sub-plate 3232 is located inside the rear vertical sub-plate 3231, and the rear horizontal sub-plate 3232 is vertically connected to the rear vertical sub-plate 3231. The second reinforcing rib 3233 is located on the lower side of the rear horizontal sub-plate 3232 and is connected to the rear vertical sub-plate 3231. This can improve the structural strength of the rear side panel 323, make the connection between the connector 32 and the rear floor longitudinal beam 71 more solid, and improve the structural strength of the vehicle frame 100 assembly.

[0093] The second reinforcing rib 3233 is constructed as a right-angled triangle, with its two right-angled sides connected to the rear horizontal sub-plate 3232 and the rear vertical sub-plate 3231, respectively. The hypotenuse extends obliquely from the bottom end of the rear vertical sub-plate 3231 to the end face of the rear horizontal sub-plate 3232. This design ensures higher connection strength for the rear plate portion 323, and the guiding effect of the hypotenuse facilitates the transmission of impact force.

[0094] Multiple second vertical reinforcing ribs 3234 and second arc-shaped reinforcing ribs 3235 are provided and connected between the rear vertical sub-plate 3231 and the middle plate 322. The second vertical reinforcing ribs 3234 extend from the top end of the rear vertical sub-plate 3231 to the bottom end, and the second arc-shaped reinforcing ribs 3235 extend horizontally and obliquely from the end of the rear vertical sub-plate 3231 away from the middle plate 322 to the middle plate 322. They are intersected and define a concave cavity structure. This can further improve the structural strength and stress effect between the rear plate 323 and the middle plate 322, and improve the impact resistance and force guidance ability of the connector 32.

[0095] Reference Figure 3 and Figure 4 According to some embodiments of the present invention, the front floor module 30 further includes: a support beam 51, which extends in the front-rear direction. There are two support beams 51, and the two support beams 51 are respectively connected to the left and right ends of the front crossbeam 41 of the front floor. The support beams 51 are used to support the corresponding lower longitudinal beams 11 of the cabin.

[0096] By setting the support beam 51 to connect the lower longitudinal beam 11 of the cabin, the front floor crossbeam 41 can be set further away from the front end of the sill beam 31, which improves the torsional stiffness of the front floor module 30, reduces the number of front floor crossbeams in the front floor module 30, and improves the overall performance of the front floor module 30.

[0097] Reference Figure 3 and Figure 4 According to some embodiments of the present invention, the front floor module 30 further includes: a first reinforcing beam 52, the first reinforcing beam 52 being inclined in the front-rear direction, one end of the first reinforcing beam 52 being connected to the front part of the support beam 51, and the other end of the first reinforcing beam 52 being connected to the front part of the sill beam 31.

[0098] When the vehicle is subjected to a frontal collision, the lower longitudinal beam 11 of the engine compartment can transfer the collision force to the support beam 51. The support beam 51 can transfer part of the collision force to the sill beam 31 through the first reinforcing beam 52. This can reduce the collision force transmitted to the front floor crossbeam 41, thereby reducing the crumple of the front engine compartment module 10 and improving the vehicle's frontal collision performance.

[0099] By setting the first reinforcing beam 52, multiple force transmission paths can be formed between the front engine compartment module 10 and the front floor module 30, so that the front engine compartment module 10 can smoothly and reliably transfer the collision force to the front floor module 30, improve the force transmission performance of the vehicle frame 100, reduce the crumple amount of the front engine compartment module 10, and improve the frontal collision performance of the vehicle.

[0100] The first reinforcing beam 52, the support beam 51, the front floor crossbeam 41, and the sill beam 31 can form a force transmission loop, thereby improving the energy absorption effect of the vehicle frame 100, reducing the intrusion of the vehicle frame 100 toward the cab, and improving the overall performance of the vehicle frame 100.

[0101] For example, refer to Figures 1-3 In some specific embodiments of the present invention, the front cabin module 10 further includes: force-sharing beams 22, each cabin lower longitudinal beam 11 corresponds to two force-sharing beams 22, the two force-sharing beams 22 are respectively disposed on the left and right sides of the corresponding cabin lower longitudinal beam 11, each force-sharing beam 22 is inclined from front to back, and each force-sharing beam 22 is connected between the corresponding cabin lower longitudinal beam 11 and the front lower crossbeam 12.

[0102] One end of the force-sharing beam 22 is connected to the lower longitudinal beam 11 of the cabin, and one end of the force-sharing beam 22 is spaced apart from the lower transverse beam 12 of the front bulkhead in the longitudinal direction. The other end of the force-sharing beam 22 is connected to the lower transverse beam 12 of the front bulkhead, and one end of the force-sharing beam 22 is spaced apart from the lower longitudinal beam 11 of the cabin in the longitudinal direction.

[0103] When a vehicle collides, a portion of the collision force transmitted to the lower longitudinal beam 11 of the engine compartment can be transferred to the lower crossbeam 12 of the front bulkhead through the force-sharing beam 22. Since the connection point between the lower longitudinal beam 11 of the engine compartment and the lower crossbeam 12 of the front bulkhead is spaced apart from the connection point between the force-sharing beam 22 and the lower crossbeam 12 of the front bulkhead in the left and right directions, the force transmitted from the lower longitudinal beam 11 of the engine compartment to the lower crossbeam 12 of the front bulkhead can be avoided from being concentrated at the connection point of the lower longitudinal beam 11 of the engine compartment and the lower crossbeam 12 of the front bulkhead. This can effectively reduce the deformation of the lower crossbeam 12 of the front bulkhead, improve the load-bearing performance of the front engine compartment module 10, reduce the intrusion of the body frame 100 toward the cab, improve the collision performance of the vehicle, and improve the safety of the vehicle.

[0104] By setting force-sharing beams 22 on the left and right sides of the lower longitudinal beam 11 of the engine compartment, when the vehicle collides, a portion of the collision force transmitted to the lower longitudinal beam 11 of the engine compartment can be transmitted to the lower crossbeam 12 of the front bulkhead through the force-sharing beam 22 located on the inner side, and a portion of the collision force transmitted to the lower longitudinal beam 11 of the engine compartment can be transmitted to the lower crossbeam 12 of the front bulkhead through the force-sharing beam 22 located on the outer side.

[0105] This effectively distributes the impact force on the lower longitudinal beam 11 of the engine compartment to various parts of the lower crossbeam 12 of the front bulkhead, allowing the lower crossbeam 12 of the front bulkhead to bear the force more evenly. This can more effectively reduce the deformation of the lower crossbeam 12 of the front bulkhead, improve the load-bearing performance of the front engine compartment module 10, reduce the intrusion of the body frame 100 toward the cab, improve the vehicle's collision performance, and improve the vehicle's safety.

[0106] The force-sharing beam 22, the lower longitudinal beam 11 of the engine compartment, and the lower crossbeam 12 of the front bulkhead can form a roughly triangular force transmission cycle. This can improve the connection strength of the force-sharing beam 22, the lower longitudinal beam 11 of the engine compartment, and the lower crossbeam 12 of the front bulkhead, improve the structural strength of the front engine compartment module 10, and make the overall structure of the front engine compartment module 10 more stable. When the front engine compartment module 10 is involved in a collision, it reduces the degree of deformation of the front engine compartment module 10, reduces the amount of crumple of the front engine compartment module 10, improves the collision performance of the vehicle, and improves the safety of the vehicle.

[0107] Reference Figures 1-3 In some embodiments of the present invention, the front cabin module 10 further includes: A-pillars 13 and a front upper crossbeam 14. There are two A-pillars 13, and the two A-pillars 13 are respectively connected to the sill beam 31. The front upper crossbeam 14 is connected between the two A-pillars 13, and the front upper crossbeam 14 is spaced apart from the sill beam 31. The front upper crossbeam 14 is connected between the two A-pillars 13 through a connector 24, and the front upper crossbeam 14 is located at the top of the A-pillars 13.

[0108] The upper front crossbeam 14, the lower front crossbeam 12, and the two A-pillars 13 can form a roughly rectangular force transmission loop. When the vehicle is subjected to a side collision, the A-pillar 13 on the collision side can transfer the collision force to the A-pillar 13 on the other side through the upper front crossbeam 14 and the lower front crossbeam 12, thereby effectively dissipating the collision force on the body frame 100, improving the energy absorption effect of the body frame 100, and improving the overall performance of the vehicle.

[0109] For example, refer to Figures 1-3 In some specific embodiments of the present invention, the left and right ends of the front floor front crossbeam 41 are respectively opposite to the corresponding A-pillars 13, and the front lower crossbeam 12 is spaced apart from the front floor front crossbeam 41 in the vertical direction. This allows the front floor front crossbeam 41, the front upper crossbeam 14, the front lower crossbeam 12 and the two A-pillars 13 to form multiple generally rectangular force transmission cycles, thereby improving the torsional performance of the vehicle frame 100, improving the energy absorption effect of the vehicle frame 100, and improving the overall performance of the vehicle.

[0110] Reference Figures 1-3 , Figure 9In some embodiments of the present invention, the adapter 24 has a first mounting surface 241 and a second mounting surface 242. The first mounting surface 241 is fitted and connected to the upper end of the A-pillar 13, and the second mounting surface 242 is fitted and connected to one end of the front upper crossbeam 14 in the length direction.

[0111] The first mounting surface 241 is attached to the upper end of the A-pillar 13 to ensure the connection strength between the two, and the second mounting surface 242 is attached to one end of the front upper crossbeam 14 in the length direction to ensure the connection strength between the two, thereby ensuring the connection strength between the A-pillar 13 and the front upper crossbeam 14 and improving the overall structural strength of the body frame 100.

[0112] Reference Figures 1-3 , Figure 9 In some embodiments of the present invention, the vehicle body frame 100 further includes a front windshield side beam, which is disposed at the left and right ends of the vehicle's windshield and is used to support the windshield. The front windshield side beam is connected to the A-pillar 13 via a connector 24. The connector 24 has a mounting groove 243, and the front end of the front windshield side beam is located in the mounting groove 243. The mounting groove 243 is located between the first mounting surface 241 and the second mounting surface 242.

[0113] The mounting slot 243 facilitates the connection between the front windshield side beam and the adapter 24, thereby ensuring the connection strength between the front windshield side beam, A-pillar 13 and front upper crossbeam 14, and thus improving the reliability of the body frame 100.

[0114] Reference Figures 1-3 In some embodiments of the present invention, the front engine compartment module 10 further includes: an upper engine compartment longitudinal beam 15 and a front engine compartment pillar 16, the front engine compartment pillar 16 being connected to the front part of the lower engine compartment longitudinal beam 11, and the upper engine compartment longitudinal beam 15 being connected between the front engine compartment pillar 16 and the A-pillar 13. For example, the vehicle's front bumper beam 18 is connected to the front ends of the two lower engine compartment longitudinal beams 11.

[0115] The upper longitudinal beam 15, lower longitudinal beam 11, front pillar 16, and A-pillar 13 of the engine compartment can form a roughly rectangular force transmission loop. When the vehicle is subjected to a frontal collision, the front bumper beam 18 can transfer the collision force to the lower longitudinal beam 11 of the engine compartment. The lower longitudinal beam 11 of the engine compartment can transfer part of the collision force to the A-pillar 13 through the lower crossbeam 12 of the front bulkhead. The lower longitudinal beam 11 of the engine compartment can transfer part of the collision force to the A-pillar 13 through the upper longitudinal beam 15 of the engine compartment, thereby effectively dissipating the collision force on the body frame 100, improving the energy absorption effect of the body frame 100, and improving the overall performance of the vehicle.

[0116] Reference Figures 1-3 , Figures 10-12In some embodiments of the present invention, the forward nacelle module 10 further includes a vibration damping tower 25, which is connected between the upper longitudinal beam 15 and the lower longitudinal beam 11 of the nacelle. The vibration damping tower 25 has a first connecting surface, and the upper longitudinal beam 15 of the nacelle has a second connecting surface. The first connecting surface and the second connecting surface are opposite to and connected to each other, and the first connecting surface is set at an angle to the vertical direction.

[0117] When the vibration damping tower 25 is subjected to an upward force, the vibration damping tower 25 can transmit the upward force to the upper longitudinal beam 15 of the nacelle through the first connecting surface; when the upper longitudinal beam 15 of the nacelle is subjected to a downward force, the upper longitudinal beam 15 of the nacelle can transmit the downward force to the vibration damping tower 25 through the second connecting surface.

[0118] Compared to setting the connection surface between the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle parallel to the vertical direction, setting the first connection surface at an angle to the vertical plane results in a smaller force decomposition in the direction parallel to the first connection surface when the upward force is transmitted from the first connection surface to the second connection surface. This allows the upward force to be reliably transmitted from the first connection surface to the second connection surface, improving the force transmission effect between the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle, and enabling the upper longitudinal beam 15 of the nacelle to reliably support the vibration damping tower 25.

[0119] When the downward force is transmitted from the second connecting surface to the first connecting surface, the force decomposed in the direction parallel to the first connecting surface is smaller, so that the downward force can be reliably transmitted from the second connecting surface to the first connecting surface, thereby improving the force transmission effect between the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle, and enabling the vibration damping tower 25 to play a better supporting role for the upper longitudinal beam 15 of the nacelle.

[0120] By setting the first connecting surface at an angle to the vertical direction, the force decomposed in the direction parallel to the first connecting surface is smaller, making the connection between the vibration damping tower 25 and the upper longitudinal beam 15 of the engine compartment more reliable, improving the stability of the vibration damping tower 25, improving the reliability of the front engine compartment module 10, improving the overall performance of the front engine compartment module 10, and improving the overall performance of the vehicle.

[0121] For example, the angle between the first connecting surface and the vertical direction can be 30°-60°. Specifically, the angle between the first connecting surface and the vertical direction can be 30°, 35°, 40°, 45°, 50°, 55°, or 60°. This allows the first connecting surface and the second connecting surface to reliably transmit forces in the left-right direction and in the vertical direction, further improving the force transmission effect of the forward cabin module 10.

[0122] For example, refer to Figures 1-3 , Figures 10-12According to some specific embodiments of the present invention, the vibration damping tower 25 is connected to the upper longitudinal beam 15 of the nacelle by fasteners, which pass through the first connecting surface and the second connecting surface. For example, the fasteners can be bolts; specifically, the fasteners can be thermoplastic self-tapping screws.

[0123] By using fasteners to connect the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle, the connection process between the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle can be simplified, making it easier to connect the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle, improving the connection efficiency between the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle, and reducing the cost of the front nacelle module 10.

[0124] Since the first connecting surface is set at an angle to the vertical direction, when the force is transmitted between the first connecting surface and the second connecting surface, the force is decomposed into smaller forces in the direction parallel to the first connecting surface. This reduces the shear force on the fastener, thereby extending the service life of the fastener, improving the connection reliability between the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle, improving the reliability of the forward nacelle module 10, and improving the overall performance of the forward nacelle module 10.

[0125] Since the first connecting surface is set at an angle to the vertical direction, when installing the fastener, the fastener needs to be tilted in the vertical direction and then inserted into the first and second connecting surfaces. This makes the space requirement in the left and right directions of the fastener smaller during installation, reduces the interference of the vibration damping tower 25 on the installation of the fastener, and facilitates the installation of the fastener to connect the vibration damping tower 25 and the upper longitudinal beam 15 of the nacelle.

[0126] Reference Figure 1 , Figures 10-12 In some embodiments of the present invention, the upper longitudinal beam 15 of the cabin includes an upper longitudinal beam body 151 and a support member 152. The support member 152 is connected to the side of the upper longitudinal beam body 151 facing the vibration damping tower 25, and the support member 152 is connected to the vibration damping tower 25. The support member 152 and the upper longitudinal beam body 151 together define a support cavity 153; or, the support member 152 defines the support cavity 153. For example, the support member 152 has a second connecting surface; the support member 152 and the upper longitudinal beam body 151 together define the support cavity 153; or, the support member 152 defines the support cavity 153. For example, the support cavity 153 can be generally triangular, which can improve the structural strength of the support cavity 153.

[0127] By setting up a cavity structure, the structural strength of the support member 152 can be increased, enabling the support member 152 to reliably support the vibration damping tower 25, reduce the vibration transmitted from the vibration damping tower 25 to the upper longitudinal beam body 151, improve the stability of the front engine compartment module 10, reduce the vibration transmitted from the front engine compartment module 10 to the cab, reduce the noise in the cab, and improve the overall performance of the vehicle.

[0128] Reference Figure 1 , Figures 10-12 According to some embodiments of the present invention, the upper longitudinal beam body 151 and the support member 152 are integral parts. For example, the upper longitudinal beam body 151 can be welded together with the support member 152, or the upper longitudinal beam body 151 and the support member 152 can be integrally formed. This can result in a higher connection strength between the upper longitudinal beam body 151 and the support member 152, resulting in higher structural strength of the upper longitudinal beam 15 in the engine room and extending the service life of the upper longitudinal beam 15 in the engine room.

[0129] Reference Figure 1 , Figures 10-12 According to some embodiments of the present invention, the vibration damping tower 25 includes a vibration damping tower body 251 and a connecting plate 252. The vibration damping tower body 251 is connected to the upper longitudinal beam 15 of the nacelle, and the connecting plate 252 is connected to the bottom of the vibration damping tower body 251 and to the side of the lower longitudinal beam 11 of the nacelle away from the upper longitudinal beam 15. For example, the vibration damping tower body 251 has a first connecting surface, the connecting plate 252 is connected to the bottom of the vibration damping tower body 251, and the connecting plate 252 is connected to the side of the lower longitudinal beam 11 of the nacelle away from the upper longitudinal beam 15. For example, the connecting plate 252 can be welded to the lower longitudinal beam 11 of the nacelle, or the connecting plate 252 can be connected to the lower longitudinal beam 11 of the nacelle by fasteners. By providing the connecting plate 252 to connect to the lower longitudinal beam 11 of the nacelle, it is convenient to connect the vibration damping tower 25 to the lower longitudinal beam 11 of the nacelle, which can improve the connection efficiency between the vibration damping tower 25 and the lower longitudinal beam 11 of the nacelle and reduce the production cost of the forward nacelle module 10.

[0130] Reference Figure 1 , Figures 10-12 According to some embodiments of the present invention, a portion of the vibration damping tower body 251 protrudes towards the upper longitudinal beam 15 of the nacelle to form a protrusion 2511. The protrusion 2511 abuts against the surface of the lower longitudinal beam 11 of the nacelle in the vertical direction. For example, the protrusion 2511 may be generally triangular. When the vibration damping tower 25 is subjected to a downward force, the vibration damping tower 25 can transmit the downward force to the lower longitudinal beam 11 of the nacelle through the protrusion 2511; when the lower longitudinal beam 11 of the nacelle is subjected to an upward force, the lower longitudinal beam 11 of the nacelle can transmit the upward force to the vibration damping tower 25 through the protrusion 2511.

[0131] Since the bulge 2511 is formed by a portion of the damping tower body 251 protruding towards the upper longitudinal beam 15 of the nacelle, the bulge 2511 has a cavity structure, which can improve the structural strength of the bulge 2511 and the structural strength of the damping tower body 251, effectively prevent the damping tower 25 from deforming under stress and improve the stability of the damping tower 25.

[0132] The protrusion 2511 contacts the lower longitudinal beam 11 of the nacelle, allowing the protrusion 2511 to reliably abut against the lower longitudinal beam 11 of the nacelle. This enables the protrusion 2511 to reliably transmit the downward force on the vibration damping tower 25 to the lower longitudinal beam 11 of the nacelle, and the lower longitudinal beam 11 of the nacelle to transmit the upward force to the vibration damping tower 25 through the protrusion 2511, thereby improving the force transmission effect of the forward nacelle module 10.

[0133] For example, when the connecting plate 252 is connected to the nacelle frame by fasteners, by setting the protrusion 2511 to abut against the lower longitudinal beam 11 of the nacelle in the vertical direction, the shear force on the fasteners can be effectively reduced, the service life of the fasteners can be extended, and the overall performance of the forward nacelle module 10 can be improved.

[0134] For example, refer to Figures 10-12 According to some specific embodiments of the present invention, the vibration damping tower 25 may further include a connecting skirt 253. There are two connecting skirts 253, which are respectively connected to the front and rear sides of the vibration damping tower body 251. One end of the connecting skirt 253 is connected to the connecting plate 252. The part of the connecting skirt 253 near the connecting plate 252 abuts against the lower longitudinal beam 11 of the cabin in the vertical direction. The other end of the connecting skirt 253 is connected to the first connecting surface.

[0135] By connecting the vibration damping tower body 251 and the connecting plate 252 with the connecting skirt 253, the structural strength of the vibration damping tower 25 can be improved, the stability of the vibration damping tower 25 can be improved, and the service life of the vibration damping tower 25 can be extended. By abutting part of the connecting skirt 253 against the lower longitudinal beam 11 of the nacelle, the contact area between the vibration damping tower 25 and the lower longitudinal beam 11 of the nacelle in the vertical direction can be increased, the force transmission effect between the vibration damping tower 25 and the lower longitudinal beam 11 of the nacelle can be improved, and the overall performance of the forward nacelle module 10 can be improved.

[0136] Reference Figure 1 , Figures 10-12 According to some embodiments of the present invention, the forward nacelle module 10 further includes: a first tie rod 26, one end of which is connected to the vibration damping tower 25 and is vertically spaced from the lower longitudinal beam 11 of the nacelle; the other end of which is connected to the lower longitudinal beam 11 of the nacelle and is longitudinally spaced from the vibration damping tower 25. That is, the first tie rod 26 is inclined upward.

[0137] This allows the first tie rod 26 to act as a limit in the front-rear and vertical directions, effectively reducing the vibration of the damping tower 25 in the front-rear and vertical directions, improving the stability of the damping tower 25, reducing the vibration transmitted from the damping tower 25 to the upper longitudinal beam 15 of the engine compartment, reducing the vibration transmitted from the damping tower 25 to the lower longitudinal beam 11 of the engine compartment, improving the stability of the front engine compartment module 10, reducing the vibration transmitted from the front engine compartment module 10 to the cab, and improving the overall performance of the vehicle.

[0138] Reference Figure 1 , Figures 10-12 According to some embodiments of the present invention, the front nacelle module 10 further includes: a nacelle upper crossbeam 29 and a second tie rod 27. The nacelle upper crossbeam 29 is connected to two nacelle upper longitudinal beams 15, and the nacelle upper crossbeam 29 is spaced apart from the front bulkhead upper crossbeam 14. The nacelle upper crossbeam 29 is spaced apart from the front nacelle crossbeam 17. The second tie rod 27 extends in the front-rear direction. One end of the second tie rod 27 is connected to the vibration damping tower 25, and the other end of the second tie rod 27 is connected to the nacelle upper crossbeam 29.

[0139] This allows the second tie rod 27 to act as a limit in the front-rear direction, effectively reducing the vibration of the damping tower 25 in the front-rear direction, improving the stability of the damping tower 25, reducing the vibration transmitted from the damping tower 25 to the upper longitudinal beam 15 of the engine compartment, reducing the vibration transmitted from the damping tower 25 to the lower longitudinal beam 11 of the engine compartment, and improving the overall performance of the vehicle.

[0140] Reference Figure 1 , Figures 10-12 According to some embodiments of the present invention, the front engine compartment module 10 further includes a third tie rod 28, which is connected between the two damping towers 25. This allows the third tie rod 28 to act as a limit in the lateral direction, effectively reducing the vibration of the damping towers 25 in the longitudinal direction, improving the stability of the damping towers 25, reducing the vibration transmitted from the damping towers 25 to the upper longitudinal beam 15 of the engine compartment, reducing the vibration transmitted from the damping towers 25 to the lower longitudinal beam 11 of the engine compartment, and improving the overall performance of the vehicle.

[0141] Reference Figures 1-3 In some embodiments of the present invention, the forward cabin module 10 further includes: a second reinforcing beam 21, one end of which is connected to the upper longitudinal beam 15 of the cabin and the second reinforcing beam 21 is spaced apart from the A-pillar 13, and the other end of which is connected to the A-pillar 13 and the second reinforcing beam 21 is spaced apart from the upper longitudinal beam 15 of the cabin.

[0142] The second reinforcing beam 21, the upper longitudinal beam 15 of the nacelle, and the A-pillar 13 can form a roughly triangular force transmission loop, which makes the connection between the second reinforcing beam 21, the upper longitudinal beam 15 of the nacelle, and the A-pillar 13 more reliable, improves the stability and reliability of the forward nacelle module 10, improves the load-bearing capacity and energy absorption effect of the forward nacelle module 10, and improves the overall performance of the forward nacelle module 10.

[0143] Reference Figures 1-3In some embodiments of the present invention, the front engine compartment module 10 further includes a front engine compartment crossbeam 17, which is connected between two front engine compartment pillars 16 and is located above the front engine compartment pillars 16. The front engine compartment crossbeam 17, the front bumper beam 18, and the two front engine compartment pillars 16 can form a generally rectangular force transmission loop. When the vehicle is subjected to a side collision, the front engine compartment pillar 16 on the collision side can transfer the collision force to the front engine compartment pillar 16 on the other side through the front engine compartment crossbeam 17 and the front bumper beam 18, thereby effectively dissipating the collision force on the vehicle body frame 100, improving the energy absorption effect of the vehicle body frame 100, and improving the side collision performance of the vehicle.

[0144] The front crossbeam 17, the upper crossbeam 14, and the two upper longitudinal beams 15 of the engine compartment can form a roughly rectangular force transmission loop. When the vehicle is subjected to a frontal collision, the front crossbeam 17 can transfer the collision force to the upper crossbeam 14 of the front bulkhead through the two upper longitudinal beams 15 of the engine compartment, thereby effectively dissipating the collision force on the body frame 100, improving the energy absorption effect of the body frame 100, and improving the frontal collision performance of the vehicle.

[0145] Reference Figure 4 According to some embodiments of the present invention, the front floor module 30 includes a plurality of front floor beams, which are spaced apart in the front-rear direction, and the seat beams extend in the left-right direction and are connected between two door sill beams 31.

[0146] This allows the sill beam 31 and multiple front floor crossbeams to form multiple rectangular force transmission cycles, which can effectively improve the structural strength of the front floor module 30, effectively improve the torsional performance of the front floor module 30, improve the load-bearing performance and energy absorption effect of the front floor module 30, improve the overall performance of the vehicle frame 100, and improve the frontal and side impact performance of the vehicle.

[0147] Reference Figure 4 According to some embodiments of the present invention, the plurality of front floor crossbeams include two front seat mounting beams 42 and a rear seat front mounting beam 43. The two front seat mounting beams 42 are located behind the front floor front crossbeam 41 and provide mounting points for the front seats. The rear seat front mounting beam 43 is located behind the front seat mounting beams 42 and provides mounting points for the rear seats. For example, the front floor crossbeams may also include the front floor front crossbeam 41.

[0148] By setting multiple front floor crossbeams as seat crossbeams that provide mounting points for the seats, the number of front floor crossbeams can be reduced, thereby reducing the production cost of the front floor module 30, reducing the production cost of the vehicle frame 100, and improving the overall performance of the vehicle.

[0149] Reference Figure 4 According to some embodiments of the present invention, the front floor module 30 further includes two first front longitudinal beams 61, which are connected between the front floor front crossbeam 41 and the front seat mounting beam 42, and the two first front longitudinal beams 61 are spaced apart in the left-right direction, and each first front longitudinal beam 61 is spaced apart from the corresponding sill beam 31.

[0150] When the vehicle is involved in a frontal collision or an offset collision, the front floor crossbeam 41 can transfer the collision force to the front seat mounting beam 42 located on the front side through the first front longitudinal beam 61. This allows the front seat mounting beam 42 located on the front side to absorb a portion of the collision energy, enabling the front floor module 30 to reliably absorb the collision energy transferred from the front engine compartment frame, thereby improving the vehicle's frontal collision performance and offset collision performance.

[0151] By setting the first front longitudinal beam 61 to connect the front floor front crossbeam 41 and the front seat mounting beam 42, the front seat mounting beam 42, the sill beam 31 and the first front longitudinal beam 61 can form multiple rectangular force transmission cycles, which can improve the structural strength of the front floor module 30, improve the torsional stiffness of the front floor module 30, improve the load-bearing performance and energy absorption effect of the front floor module 30, and improve the safety performance of the vehicle.

[0152] Reference Figure 4 According to some embodiments of the present invention, the front floor module 30 further includes two second front longitudinal beams 62, which are connected between two front seat mounting beams 42 and are spaced apart in the left-right direction. Each second front longitudinal beam 62 is spaced apart from the corresponding sill beam 31.

[0153] When a vehicle is involved in a frontal collision or an offset collision, the front floor crossbeam 41 can transfer the collision force to the front seat mounting beam 42 located on the front side through the first front longitudinal beam 61, and the front seat mounting beam 42 located on the front side can transfer the collision force to the front seat mounting beam 42 located on the rear side through the second front longitudinal beam 62.

[0154] By setting the first front longitudinal beam 61 and the second front longitudinal beam 62, when the vehicle is subjected to a frontal collision, the collision force on the front engine compartment module 10 can be transferred from front to rear in stages to the front floor front crossbeam 41 and the front seat mounting beam 42. This allows the front floor front crossbeam 41, the front seat mounting beam 42, the sill beam 31, the first front longitudinal beam 61 and the second front longitudinal beam 62 to absorb the collision energy of the vehicle in stages, thereby improving the energy absorption effect of the front floor module 30 and improving the vehicle's frontal collision performance and offset collision performance.

[0155] Meanwhile, by setting the first front longitudinal beam 61 and the second front longitudinal beam 62, the front seat mounting beam 42, the sill beam 31, the first front longitudinal beam 61 and the second front longitudinal beam 62 can form multiple rectangular force transmission cycles, which can improve the structural strength of the front floor module 30, improve the torsional stiffness of the front floor module 30, improve the load-bearing performance and energy absorption effect of the front floor module 30, and improve the safety performance of the vehicle.

[0156] Reference Figure 4 According to some embodiments of the present invention, the front floor module 30 further includes a front floor reinforcing crossbeam 44, which connects the front seat mounting beam 42 and the rear seat front mounting beam 43. This allows for a smaller gap between the front floor reinforcing crossbeam 44 and the front seat mounting beam 42, and a smaller gap between the front floor reinforcing crossbeam 44 and the rear seat front mounting beam 43, resulting in higher structural strength and better torsional stiffness of the front floor module 30. This, in turn, improves the load-bearing capacity and energy absorption effect of the front floor module 30, thereby enhancing vehicle safety performance.

[0157] Reference Figure 4 According to some embodiments of the present invention, the front floor module 30 further includes two third front longitudinal beams 63, which are connected between the front floor reinforcing beam 44 and the rear seat front mounting beam 43, and the two third front longitudinal beams 63 are spaced apart in the left and right direction, and each third front longitudinal beam 63 is spaced apart from the corresponding sill beam 31.

[0158] When a rear-end collision occurs, the rear floor module 70 can transfer the collision force to the rear seat front mounting beam 43. The rear seat front mounting beam 43 then transfers the collision force to the front floor reinforcing beam 44 via the third front longitudinal beam 63. This allows the front floor reinforcing beam 44 to absorb a portion of the collision energy, enabling the front floor module 30 to reliably absorb the collision energy transferred from the rear floor module 70 and improve the vehicle's rear-end collision performance.

[0159] By setting a third front longitudinal beam 63 to connect the front floor reinforcing beam 44 and the rear seat front mounting beam 43, the front floor reinforcing beam 44, the sill beam 31 and the third front longitudinal beam 63 can form multiple rectangular force transmission cycles, which can improve the structural strength of the front floor module 30, improve the torsional stiffness of the front floor module 30, improve the load-bearing performance and energy absorption effect of the front floor module 30, and improve the safety performance of the vehicle.

[0160] Reference Figure 1 , Figure 4 and Figure 5According to some optional embodiments of the present invention, the rear floor module 70 includes a rear floor longitudinal beam 71 and a plurality of rear floor transverse beams 72. There are two rear floor longitudinal beams 71, which extend in the front-rear direction and are arranged at intervals in the left-right direction. The plurality of rear floor transverse beams 72 are arranged at intervals in the front-rear direction and are connected between the two rear floor longitudinal beams 71.

[0161] By setting multiple rear floor crossbeams 72 between the rear floor longitudinal beams 71, the rear floor longitudinal beams 71 and the multiple rear floor crossbeams 72 can form multiple rectangular force transmission cycles. This can effectively improve the structural strength of the rear floor module 70, effectively improve the torsional performance of the rear floor module 30, improve the load-bearing performance and energy absorption effect of the rear floor module 70, improve the overall performance of the vehicle frame 100, and improve the frontal and side impact performance of the vehicle.

[0162] Reference Figure 4 In some optional embodiments of the present invention, each front floor crossbeam extends continuously in the left-right direction. For example, the front floor module 30 may also include a central channel plate located between two sill beams 31 and extending in the front-rear direction. The central channel plate has a wiring groove for providing wiring space for the vehicle's wiring harness. The front floor crossbeam has a clearance notch 411 that opens downward and extends through the front floor crossbeam in the front-rear direction. The central channel plate is fitted into the clearance notch 411.

[0163] By continuously setting the front floor crossbeams, when the vehicle is subjected to a side collision, the front floor crossbeams can reliably and smoothly transfer the force on the sill beam 31 on the collision side to the sill beam 31 on the other side. This allows the sill beam 31 on the other side to absorb some of the collision energy, and enables the sill beam 31 on one side to quickly transfer the force to the sill beam 31 on the other side. This can improve the force transmission performance of the front floor module 30, improve the energy absorption effect of the front floor module 30, and improve the overall performance of the vehicle body frame 100.

[0164] Reference Figure 4 and Figure 5 In some embodiments of the present invention, the wheel arch frame assembly 80 includes a wheel arch upper side beam 81 and a plurality of wheel arch support beams. The wheel arch upper side beam 81 is located above the rear floor longitudinal beam 71 and is spaced apart from the rear floor longitudinal beam 71 in the left-right direction. The wheel arch support beams connect the wheel arch upper side beam 81 and the rear floor longitudinal beam 71. The plurality of wheel arch support beams are arranged at intervals in the front-rear direction.

[0165] By arranging multiple wheel arch support beams at intervals along the front-rear direction, multiple force transmission cycles can be formed between the upper wheel arch beam 81, the rear floor longitudinal beam 71, and the multiple wheel arch support beams, thereby improving the structural reliability of the wheel arch frame assembly 80, the structural reliability of the body frame 100, and the load-bearing performance and energy absorption effect of the body frame 100.

[0166] Reference Figure 5 In some embodiments of the present invention, the plurality of wheel arch support beams include a backup support beam 83, one end of which is connected to the rear of the upper wheel arch beam 81, and the other end of which is connected to the rear of the rear floor longitudinal beam 71. A rear upper crossbeam 74 is connected between the two backup support beams 83.

[0167] The upper crossbeam 74 of the rear bulkhead can limit the two backup support beams 83 in the left and right directions, so that the wheel arch frame assembly 80 is reliably fixed relative to the floor frame assembly, improving the stability and reliability of the vehicle body frame 100. When the vehicle is subjected to a side collision, the backup support beam 83 on the collision side can transfer the collision force to the backup support beam 83 on the other side through the upper crossbeam 74 of the rear bulkhead, thereby effectively dissipating the collision force on the vehicle body frame 100, improving the energy absorption effect of the vehicle body frame 100, and improving the side collision performance of the vehicle.

[0168] For example, refer to Figure 5 In some specific embodiments of the present invention, the rear bumper beam 73 is connected to the rear part of the rear floor longitudinal beam 71, and the rear bumper beam 73 and the rear upper crossbeam 74 are spaced apart in the vertical direction. This allows the rear bumper beam 73, the rear upper crossbeam 74, and the two backup support beams 83 to form a generally rectangular force transmission loop, which can improve the structural strength of the vehicle frame 100 and improve the energy absorption effect of the vehicle frame 100.

[0169] For example, refer to Figure 5 In some specific embodiments of the present invention, the wheel arch support beam includes a front support beam 82. One end of the front support beam 82 is connected to the front part of the upper beam 81 of the wheel arch, and the other end of the front support beam 82 is connected to the sill beam 31. The other end of the front support beam 82 is positioned vertically opposite to the connecting member 32. For example, the connecting member 32 can be a casting. The structural strength at the junction of the sill beam 31 and the connecting member 32 is high. Setting the other end of the front support beam 82 vertically opposite to the connecting member 32 can improve the structural strength of the vehicle frame 100 and enhance the overall structural reliability of the vehicle frame 100.

[0170] The front support beam 82 is connected to the sill beam 31. When a rear-end collision occurs, the rear support beam 83 can transfer the impact to the front support beam 82 through the upper side beam 81 of the wheel arch. The front support beam 82 can then transfer the force to the sill beam 31. In conjunction with the rear floor longitudinal beam 71, the rear floor module 70 can transfer the impact force to the front floor module 30 through multiple force transmission paths. This allows the rear floor module 70 to reliably transfer the force to the front floor module 30, effectively dissipating some of the force transferred from the rear floor module 70, improving the energy absorption effect of the vehicle frame 100, and enhancing the overall performance of the vehicle.

[0171] For example, refer to Figure 5 In some specific embodiments of the present invention, the wheel arch support beam further includes multiple wheel arch panel connecting beams 84, which are spaced apart, and the multiple wheel arch panels are used to connect the rear wheel arch panels of the vehicle. This allows for a larger contact area between the rear wheel arch panels and the wheel arch frame assembly 80, enabling the rear wheel arch panels to be reliably connected to the wheel arch frame assembly 80. This effectively reduces abnormal noise caused by the wobbling of the rear wheel arch panels relative to the wheel arch frame assembly 80, thereby improving the overall performance of the vehicle.

[0172] A vehicle according to a second aspect embodiment of the present invention includes: a vehicle body frame 100 according to the first aspect embodiment described above. For example, the vehicle may be an automobile.

[0173] According to the present invention, the vehicle's collision performance and overall performance can be improved through the aforementioned body frame 100.

[0174] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0175] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0176] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle body frame, characterized in that, include: The forward nacelle module includes lower longitudinal beams on both sides of the nacelle and a lower transverse beam at the end of the lower longitudinal beams of the nacelle. A front floor module, the front floor module including a front floor front crossbeam disposed at the front end of the front floor module and sill beams disposed at both ends of the front floor front crossbeam; The rear floor module includes a rear floor longitudinal beam that is positioned at the rear end of the front floor module and a wheel arch frame assembly mounted on the rear floor longitudinal beam. In the longitudinal direction of the vehicle body, the front engine compartment module is located in front of the front floor module, the lower crossbeam of the front bulkhead and the front crossbeam of the front floor are spaced apart vertically, and a force transmission beam is provided between the lower crossbeam of the front bulkhead and the front crossbeam of the front floor. The rear floor module is located behind the front floor module, and a connector is provided between the sill beams on both sides and the longitudinal beams of the rear floor. In the front-rear direction, the lower front crossbeam is located in front of the front floor crossbeam. The end of the force transmission beam near the lower front crossbeam has a mating groove. The mating groove opens toward the lower front crossbeam along the central axis of the force transmission beam. The lower front crossbeam is engaged in the mating groove and abuts against the side wall of the mating groove.

2. The vehicle frame according to claim 1, characterized in that, The angle between the central axis of the force transmission beam and the horizontal plane is not less than 35° and not greater than 45°.

3. The vehicle frame according to claim 1, characterized in that, The connector includes a front side panel, a middle panel, and a rear side panel. The front side panel is connected to the front side of the middle panel and has a first connection position for connecting with the sill beam. The rear side panel is connected to the rear side of the middle panel and has a second connection position for connecting with the rear floor longitudinal beam.

4. The vehicle frame according to claim 3, characterized in that, The front panel includes a front vertical sub-panel and a front horizontal sub-panel. The front vertical sub-panel and the front horizontal sub-panel, together with the middle panel, define a first connecting space. The sill beam passes through the first connecting space and abuts against the inner wall of the first connecting space. The front vertical sub-panel and / or the front horizontal sub-panel are provided with the first connecting position.

5. The vehicle frame according to claim 3, characterized in that, The rear panel includes a rear vertical sub-panel and a rear horizontal sub-panel. The rear vertical sub-panel and the rear horizontal sub-panel, together with the middle panel, define a second connecting space. The rear floor longitudinal beam passes through the second connecting space and abuts against the inner wall of the second connecting space. The rear vertical sub-panel and / or the rear horizontal sub-panel are provided with the second connecting position.

6. The vehicle frame according to claim 1, characterized in that, The front floor module further includes: two support beams, which are respectively connected to the left and right ends of the front crossbeam of the front floor. The support beams extend in the front-rear direction and are used to support the corresponding lower longitudinal beams of the cabin.

7. The vehicle frame according to claim 6, characterized in that, The front floor module further includes: a first reinforcing beam, which is inclined in the front-rear direction, one end of which is connected to the front of the support beam, and the other end of which is connected to the front of the sill beam.

8. The vehicle frame according to claim 1, characterized in that, The cabin module also includes: A-pillars and a front upper crossbeam. There are two A-pillars, each connected to the sill beam. The front upper crossbeam is connected between the two A-pillars and spaced apart from the sill beam. The front upper crossbeam is connected between the two A-pillars via an adapter and is located at the top of the A-pillars.

9. The vehicle frame according to claim 8, characterized in that, The adapter has a first mounting surface and a second mounting surface. The first mounting surface is fitted and connected to the upper end of the A-pillar, and the second mounting surface is fitted and connected to one end of the front upper crossbeam along its length.

10. The vehicle frame according to claim 9, characterized in that, The vehicle body frame also includes a front windshield side beam, which is located at the left and right ends of the vehicle's windshield and is used to support the windshield. The front windshield side beam is connected to the A-pillar through the adapter, which has a mounting groove. The front end of the front windshield side beam is located in the mounting groove, which is located between the first mounting surface and the second mounting surface.

11. The vehicle frame according to claim 8, characterized in that, The nacelle module also includes: an upper longitudinal beam, a front column, and a vibration damping tower. The front column is connected to the front of the lower longitudinal beam, and the upper longitudinal beam is connected between the front column and the A-pillar. The vibration damping tower is connected between the upper longitudinal beam and the lower longitudinal beam of the nacelle. The vibration damping tower has a first connecting surface, and the upper longitudinal beam of the nacelle has a second connecting surface. The first connecting surface and the second connecting surface are opposite to and connected to each other. The first connecting surface is set at an angle to the vertical direction.

12. The vehicle frame according to claim 11, characterized in that, The upper longitudinal beam of the cabin includes an upper longitudinal beam body and a support member. The support member is connected to the side of the upper longitudinal beam body facing the vibration damping tower. The support member is connected to the vibration damping tower. The support member and the upper longitudinal beam body together define a support cavity. Or the support member defines a support cavity.

13. The vehicle frame according to claim 11, characterized in that, The vibration damping tower includes a vibration damping tower body and a connecting plate. The vibration damping tower body is connected to the upper longitudinal beam of the nacelle, and the connecting plate is connected to the bottom of the vibration damping tower body and to the side of the lower longitudinal beam of the nacelle away from the upper longitudinal beam of the nacelle.

14. The vehicle frame according to claim 13, characterized in that, A portion of the vibration damping tower body protrudes towards the upper longitudinal beam of the nacelle to form a bulge, and the bulge abuts against the surface of the lower longitudinal beam of the nacelle in the vertical direction.

15. The vehicle frame according to claim 1, characterized in that, The forward nacelle module also includes force-sharing beams. Each lower longitudinal beam of the nacelle corresponds to two force-sharing beams. The two force-sharing beams are respectively located on the left and right sides of the corresponding lower longitudinal beam of the nacelle. Each force-sharing beam is inclined from front to back and connected between the corresponding lower longitudinal beam of the nacelle and the lower crossbeam of the front bulkhead.

16. The vehicle frame according to claim 1, characterized in that, The rear floor module also includes multiple rear floor crossbeams, two rear floor longitudinal beams that extend in the front-to-back direction, two rear floor longitudinal beams that are spaced apart in the left-to-right direction, and multiple rear floor crossbeams that are spaced apart in the front-to-back direction and connected between the two rear floor longitudinal beams.

17. The vehicle frame according to claim 1, wherein the wheel arch frame assembly includes an upper wheel arch beam and a plurality of wheel arch support beams, the upper wheel arch beam being located above the rear floor longitudinal beam and spaced apart from the rear floor longitudinal beam in the left-right direction, the wheel arch support beams connecting the upper wheel arch beam and the rear floor longitudinal beam, and the plurality of wheel arch support beams being arranged at intervals in the front-rear direction.

18. The vehicle frame according to claim 17, characterized in that, The plurality of wheel arch support beams include a backup support beam, one end of which is connected to the rear of the upper beam of the wheel arch, and the other end of which is connected to the rear of the longitudinal beam of the rear floor. A rear upper crossbeam is connected between two of the backup support beams.

19. A vehicle, characterized in that, include: The vehicle frame according to any one of claims 1-18.

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