Vehicle body frame structure and vehicle

Abstract

The embodiment of the present application provides a vehicle body frame structure and a vehicle, the vehicle body frame structure comprises a longitudinal beam main body part; a longitudinal beam connecting part, the longitudinal beam main body part is connected with the longitudinal beam connecting part; in the vehicle width direction, the second end of the longitudinal beam outer connecting part is spaced apart from the second end of the longitudinal beam inner connecting part, so that the longitudinal beam outer connecting part, the longitudinal beam inner connecting part and the longitudinal beam main body part form a Y-shaped structure, the longitudinal beam outer connecting part and the longitudinal beam inner connecting part can disperse the stress of the longitudinal beam main body part, and the collision strength of the vehicle body frame structure is improved.

Description

Technical Field

[0001] This application belongs to the field of vehicle body structure technology, specifically, this application relates to a vehicle body frame structure and a vehicle. Background Technology

[0002] In existing technologies, the force transmission structures on the front and rear sides of the vehicle's passenger compartment are relatively weak, which makes it difficult to effectively transmit force to the passenger compartment, reducing the collision strength of the vehicle body structure and affecting the vehicle's driving safety. Summary of the Invention

[0003] One objective of this application is to provide a new technical solution for a vehicle body frame structure and a vehicle.

[0004] According to a first aspect of the embodiments of this application, a vehicle frame structure is provided, comprising:

[0005] Longitudinal beam main body;

[0006] The longitudinal beam connecting part is connected to the main body of the longitudinal beam.

[0007] The longitudinal beam connecting part includes an outer longitudinal beam connecting part and an inner longitudinal beam connecting part, and the first end of the outer longitudinal beam connecting part and the first end of the inner longitudinal beam connecting part are both connected to the first end of the main body of the longitudinal beam.

[0008] In the vehicle width direction, the second end of the outer connecting part of the longitudinal beam is spaced apart from the second end of the inner connecting part of the longitudinal beam, so that the outer connecting part of the longitudinal beam, the inner connecting part of the longitudinal beam, and the main body of the longitudinal beam form a Y-shaped structure.

[0009] Optionally, it also includes a longitudinal beam front connector, wherein the first end of the outer connecting part of the longitudinal beam and the first end of the inner connecting part of the longitudinal beam are both connected to the first end of the main body of the longitudinal beam through the longitudinal beam front connector.

[0010] Optionally, the longitudinal beam front connector includes a main connector portion, an outer connector portion, and an inner connector portion. The main connector portion is adapted to connect to a first end of the main body portion of the longitudinal beam, the outer connector portion is adapted to connect to a first end of the outer connecting portion of the longitudinal beam, and the inner connector portion is adapted to connect to a first end of the inner connecting portion of the longitudinal beam.

[0011] Optionally, it also includes a front mounting base and a rear mounting base, wherein the front mounting base is connected to the outer connecting part of the longitudinal beam and the rear mounting base is connected to the main body of the longitudinal beam;

[0012] The front mounting bracket and the rear mounting bracket are used to connect the subframe.

[0013] Optionally, the rear mounting seat has a first connecting surface and a second connecting surface. In the vehicle width direction, the first connecting surface is connected to the side of the longitudinal beam body away from the passenger compartment, and in the vehicle height direction, the second connecting surface is connected to the bottom surface of the longitudinal beam body.

[0014] Optionally, it also includes a mounting sleeve adapted to connect to a subframe, wherein the rear mounting base has a mounting hole, and the mounting sleeve is disposed in the mounting hole and fixed in the rear mounting base.

[0015] Optionally, in the vehicle width direction, the mounting sleeve is disposed on the side of the longitudinal beam body away from the passenger compartment.

[0016] Optionally, it also includes a first crossbeam of the frame, the main body of the longitudinal beam including a left longitudinal beam and a right longitudinal beam spaced apart in the vehicle width direction, and the rear mounting seat including a left rear mounting seat and a right rear mounting seat;

[0017] The two ends of the first crossbeam of the frame are respectively connected to the left longitudinal beam and the right longitudinal beam, and the two ends of the first crossbeam of the frame are respectively connected to the left rear mounting seat and the right rear mounting seat.

[0018] Optionally, it also includes a second crossbeam of the frame, wherein the front joint of the longitudinal beam includes a left front joint and a right front joint, and the two ends of the second crossbeam of the frame are respectively connected to the left front joint and the right front joint of the longitudinal beam;

[0019] The longitudinal beam body includes a left longitudinal beam body and a right longitudinal beam body. The left front joint of the longitudinal beam is connected to the first end of the left longitudinal beam body, and the right front joint of the longitudinal beam is connected to the first end of the right longitudinal beam body.

[0020] Optionally, it also includes a passenger compartment connecting plate, which has a cavity inside, and the passenger compartment connecting plate is connected to the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam;

[0021] Furthermore, the projection of the cavity in the vehicle's longitudinal direction at least partially overlaps with the projection of the second end of the outer connecting part of the longitudinal beam in the vehicle's longitudinal direction, and the projection of the cavity in the vehicle's longitudinal direction at least partially overlaps with the projection of the second end of the inner connecting part of the longitudinal beam in the vehicle's longitudinal direction.

[0022] Optionally, a reinforcing member is provided in the cavity, and the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam are both connected to the reinforcing member.

[0023] Optionally, it also includes a longitudinal beam outer connection mounting plate, wherein the longitudinal beam outer connection is connected to the passenger compartment connection plate through the longitudinal beam outer connection mounting plate;

[0024] and / or;

[0025] It also includes a longitudinal beam inner connection mounting plate, which is connected to the passenger compartment connection plate via the longitudinal beam inner connection mounting plate.

[0026] Optionally, in the vehicle width direction, two first reinforcing ribs are spaced apart on the mounting plate of the longitudinal beam outer connection part, and the longitudinal beam outer connection part is disposed between the two first reinforcing ribs;

[0027] and / or;

[0028] The longitudinal beam inner connecting part mounting plate is provided with two second reinforcing ribs at intervals, and the longitudinal beam inner connecting part is located between the two second reinforcing ribs.

[0029] Optionally, the cavity is further provided with an external connecting block, and the external connecting part of the longitudinal beam is connected to the external connecting block through the mounting plate of the external connecting part of the longitudinal beam;

[0030] and / or;

[0031] The cavity is also provided with a middle connecting block, and the inner connecting part of the longitudinal beam is connected to the middle connecting block through the mounting plate of the inner connecting part of the longitudinal beam.

[0032] Optionally, it also includes a sill beam and a sill connecting block, the sill connecting block being fixed to the sill beam;

[0033] The external connecting block is connected to the threshold connecting block.

[0034] Optionally, in the vehicle width direction, the sill connecting block is located on the side of the outer connecting block away from the middle connecting block.

[0035] Optionally, the passenger compartment connecting plate has a connecting plate main body and a side plate connected to each other, and the external connecting block is connected to the connecting plate main body and the side plate respectively.

[0036] Optionally, the outer connecting part of the longitudinal beam, the inner connecting part of the longitudinal beam, and the front joint of the longitudinal beam are integrally formed.

[0037] Optionally, the front mounting base, the outer connecting part of the longitudinal beam, the inner connecting part of the longitudinal beam, and the front connector of the longitudinal beam are integrally formed.

[0038] Optionally, it also includes a crash beam assembly, which includes a crash beam and an energy-absorbing box;

[0039] The energy-absorbing box is disposed between the anti-collision beam and the main body of the longitudinal beam, with the first end of the energy-absorbing box connected to the anti-collision beam and the second end of the energy-absorbing box connected to the second end of the main body of the longitudinal beam.

[0040] Optionally, it also includes an energy-absorbing box connecting part, the energy-absorbing box connecting part being provided with an installation cavity, the second end of the longitudinal beam main body being disposed in the installation cavity and connected to the energy-absorbing box connecting part, and the second end of the energy-absorbing box being disposed in the installation cavity and connected to the energy-absorbing box connecting part.

[0041] Optionally, the outer connecting portion and the inner connecting portion of the longitudinal beam are spaced apart in the vehicle width direction.

[0042] Optionally, the main body of the longitudinal beam is a rear longitudinal beam, and the passenger compartment connecting plate is a rear bulkhead.

[0043] According to a second aspect of the embodiments of this application, a vehicle is provided, the vehicle including the body frame structure described in the first aspect.

[0044] One technical advantage of this application is:

[0045] This application provides a vehicle body frame structure, which includes a longitudinal beam main body and a longitudinal beam connecting part, wherein the longitudinal beam main body and the longitudinal beam connecting part are connected; in the vehicle width direction, the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam are spaced apart, so that the outer connecting part of the longitudinal beam, the inner connecting part of the longitudinal beam and the longitudinal beam main body form a Y-shaped structure. The outer connecting part of the longitudinal beam and the inner connecting part of the longitudinal beam can disperse the force on the longitudinal beam main body, thereby improving the collision strength of the vehicle body frame structure.

[0046] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0047] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0048] Figure 1 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 1 ;

[0049] Figure 2 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 2 ;

[0050] Figure 3 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 3 ;

[0051] Figure 4 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 4 ;

[0052] Figure 5 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 5 ;

[0053] Figure 6 A schematic diagram illustrating the fit between the longitudinal beam outer connection portion and the front mounting seat of a vehicle frame structure provided in an embodiment of this application;

[0054] Figure 7 A partial cross-section of a vehicle frame structure provided in an embodiment of this application. Figure 1 ;

[0055] Figure 8 A partial cross-section of a vehicle frame structure provided in an embodiment of this application. Figure 2 ;

[0056] Figure 9 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 6 ;

[0057] Figure 10 A force transmission diagram of a vehicle frame structure provided in this application embodiment. Figure 1 ;

[0058] Figure 11 A force transmission diagram of a vehicle frame structure provided in this application embodiment. Figure 2 ;

[0059] Figure 12 A partial cross-section of a vehicle frame structure provided in an embodiment of this application. Figure 3 ;

[0060] Figure 13 A partial cross-section of a vehicle frame structure provided in an embodiment of this application. Figure 4 ;

[0061] Figure 14 A force transmission diagram of a vehicle frame structure provided in this application embodiment. Figure 3 ;

[0062] Figure 15 A partial schematic diagram of a vehicle frame structure provided in this application embodiment. Figure 7 .

[0063] in:

[0064] 211. Floor; 230. Rear bulkhead assembly; 231. Passenger compartment connecting plate; 232. Reinforcing member; 233. External connecting block; 233a. First bolt hole; 233b. Second bolt hole; 234. Middle connecting block; 234a. Third bolt hole; 244. Sill beam; 249. Sill connecting block; 249a. Connecting bolt; 400. V-shaped frame structure; 411. Main body of longitudinal beam; 412. Front joint of longitudinal beam; 413. Energy-absorbing box connecting part; 413a. Bolt sleeve; 414. External connecting part of longitudinal beam; 415. Front mounting base; 415a 416. Wire thread insert; 417. Longitudinal beam outer connection mounting plate; 418. Fourth connection surface; 419. Third bolt; 420. Longitudinal beam inner connection; 421. Longitudinal beam inner connection mounting plate; 422. First bolt; 43. Anti-collision beam assembly; 44. Anti-collision beam; 45. Energy absorption box; 466. Second crossbeam of frame; 467. First crossbeam of frame; 468. Rear mounting seat; 469. Mounting sleeve; 460. First connection surface; 461. Second connection surface; 461. Second bolt. Detailed Implementation

[0065] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0066] The embodiments of this application will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0067] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0068] In the description of this application, 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", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0071] Reference Figure 1 and Figure 2 This application provides a vehicle body frame structure, which includes:

[0072] The main body of the longitudinal beam 411 can be a rear longitudinal beam or a front longitudinal beam;

[0073] In one embodiment, the system further includes a crash beam assembly 420, wherein the main body of the longitudinal beam 411 is a rear longitudinal beam, and the crash beam assembly 420 is connected to the rear end of the main body of the longitudinal beam 411. When the crash beam assembly 420 is impacted by the rear of the vehicle, it can transfer the impact energy to the main body of the longitudinal beam 411 to facilitate the transmission of impact force of the vehicle body frame structure.

[0074] The longitudinal beam connecting part is connected to the longitudinal beam main body 411; in one embodiment, the longitudinal beam main body 411 is a rear longitudinal beam, and the longitudinal beam connecting part is located on the front side of the longitudinal beam main body in the vehicle longitudinal direction.

[0075] The longitudinal beam connecting part includes an outer longitudinal beam connecting part 414 and an inner longitudinal beam connecting part 417. The first end of the outer longitudinal beam connecting part and the first end of the inner longitudinal beam connecting part are both connected to the first end of the main body of the longitudinal beam. Specifically, the first end of the outer longitudinal beam connecting part is connected to the first end of the main body of the longitudinal beam, and the first end of the inner longitudinal beam connecting part is connected to the first end of the main body of the longitudinal beam. The connection between the first end of the outer longitudinal beam connecting part, the first end of the inner longitudinal beam connecting part and the first end of the main body of the longitudinal beam can be a direct connection or an indirect connection achieved through a connector.

[0076] Specifically, the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam can be obliquely connected to the front end of the main body part 411 of the longitudinal beam and form an included angle.

[0077] The second end of the outer connecting part of the longitudinal beam is spaced apart from the second end of the inner connecting part of the longitudinal beam, so that the outer connecting part 414, the inner connecting part 417, and the main body part 411 of the longitudinal beam form a Y-shaped structure.

[0078] Specifically, the vehicle body frame structure is used in vehicles with length, width, and height directions. Specifically, the length direction of the vehicle can be the X direction in the figure, which is the front-to-back direction of the vehicle; the width direction of the vehicle can be the Y direction in the figure, which is the left-to-right direction of the vehicle; and the height direction of the vehicle can be the Z direction in the figure, which is the up-to-down direction of the vehicle.

[0079] Specifically, when the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam are obliquely connected to the front end of the main body part 411 of the longitudinal beam and form an included angle, the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam can disperse the force on the main body part 411 of the longitudinal beam; and since the main body part 411 of the longitudinal beam is connected to the passenger compartment through the longitudinal beam connecting part, the V-shaped strut structure of the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam can reduce the local force on the passenger compartment, thereby preventing the passenger compartment from deforming.

[0080] See Figure 1 When the anti-collision beam assembly 420 is subjected to an impact force F from the rear of the vehicle, the force transmission path of the impact force F is as follows: Figure 1 As indicated by the middle arrow, two force transmission paths are generated. One path transmits the force to the vehicle's door sill through the main body 411 of the longitudinal beam and the outer connecting part 414 of the longitudinal beam. The other path transmits the force to the rear crossbeam cavity through the main body 411 of the longitudinal beam and the inner connecting part 417 of the longitudinal beam. This reduces the local stress on the passenger compartment and prevents the passenger compartment from undergoing large deformation. This ensures that the installation function requirements of the vehicle body frame structure are met while also satisfying the energy absorption and force transmission performance during a rear-end collision.

[0081] Furthermore, based on the characteristics of electric sports cars using the aforementioned vehicle frame structure, this application improves the force transmission path during a rear-end collision because there are no chassis components or luggage compartment limitations. Specifically, force is transmitted to the sill through the outer connecting part 414 of the longitudinal beam, and simultaneously to the rear crossbeam cavity of the driver's compartment through the inner connecting part 417 of the longitudinal beam. This reduces the maximum force on the passenger compartment sill, thereby preventing large deformation of the passenger compartment, protecting the structure of the passenger compartment, and ensuring the vehicle's driving safety.

[0082] This application provides a vehicle body frame structure, which includes a longitudinal beam main body 411 and a longitudinal beam connecting part, the longitudinal beam connecting part including an outer longitudinal beam connecting part 414 and an inner longitudinal beam connecting part 417. The outer longitudinal beam connecting part 414 and the inner longitudinal beam connecting part 417 are connected to the longitudinal beam main body 411 so that the outer longitudinal beam connecting part 414, the inner longitudinal beam connecting part 417 and the longitudinal beam main body 411 form a Y-shaped structure. The outer longitudinal beam connecting part 414 and the inner longitudinal beam connecting part 417 can disperse the force on the longitudinal beam main body 411 to reduce the local force on the passenger compartment and improve the collision strength of the vehicle body frame structure.

[0083] Optionally, see Figure 1 and Figure 2 The vehicle frame structure also includes a longitudinal beam front connector 412, and the first end of the longitudinal beam outer connecting part 414 and the first end of the longitudinal beam inner connecting part 417 are both connected to the first end of the longitudinal beam main body part 411 through the longitudinal beam front connector 412.

[0084] Specifically, a Y-shaped bracket of a longitudinal beam front connector 412 can be installed at the front end of the longitudinal beam main body 411. The longitudinal beam front connector 412 can connect the longitudinal beam main body 411, the longitudinal beam outer connecting part 414 and the longitudinal beam inner connecting part 417 into an integral Y-shaped structure by multiple bolts. In the vehicle frame structure, the two Y-shaped structures on both sides are connected by the anti-collision beam assembly 420 to form a closed frame, so as to facilitate the installation points of structures such as the rear suspension and the rear subframe on the closed frame.

[0085] Aluminum alloy profiles offer advantages such as simple forming molds and low cost, and the length of the parts can be adjusted as needed, providing excellent dimensional flexibility and improving the structural flexibility of the longitudinal beam outer connection 414, the longitudinal beam inner connection 417, and the longitudinal beam main body 411. Meanwhile, aluminum castings offer the advantage of high forming freedom, allowing for the molding of complex parts. Therefore, using aluminum castings for the connection between the longitudinal beam main body 411 and the longitudinal beam connection simplifies the number of parts in the vehicle body frame structure and increases the integration of the vehicle body frame structure.

[0086] In addition, by combining aluminum alloy profiles and aluminum castings, the vehicle frame structure can achieve the characteristics of light weight, low cost and simple structure. Compared with stamped sheet metal parts, it has the advantages of easy forming, light weight and high strength, thus achieving a balance between the performance, cost and reliability of the vehicle frame structure.

[0087] Optionally, see Figure 1 and Figure 2 The longitudinal beam front connector 412 includes a main connector portion, an outer connector portion, and an inner connector portion. The main connector portion is adapted to connect to the first end of the longitudinal beam main body portion 411, the outer connector portion is adapted to connect to the first end of the longitudinal beam outer connecting portion 414, and the inner connector portion is adapted to connect to the first end of the longitudinal beam inner connecting portion 417.

[0088] Specifically, the longitudinal beam front connector 412 can be formed into a Y-shaped connector structure in one step. The rear end of the Y-shaped connector structure forms the main connector part, and the front end of the Y-shaped connector structure forks to form an outer connector part and an inner connector part. This allows the first end of the longitudinal beam outer connector part 414 and the first end of the longitudinal beam inner connector part 417 to be connected to the first end of the longitudinal beam main body part 411 through the longitudinal beam front connector 412, thereby improving the stability of the connection between the longitudinal beam outer connector part 414 and the longitudinal beam inner connector part 417 and the longitudinal beam main body part 411.

[0089] Optionally, see Figures 4 to 6 The vehicle frame structure also includes a front mounting seat 415 and a rear mounting seat 466. The front mounting seat 415 is connected to the outer connecting part 414 of the longitudinal beam, and the rear mounting seat 466 is connected to the main body of the longitudinal beam.

[0090] The front mounting bracket 415 and the rear mounting bracket 466 are used to connect the subframe.

[0091] In one embodiment, see Figure 6 The front mounting seat 415 is connected to the bottom of the outer connecting part 414 of the longitudinal beam. The front mounting plate (not shown in the figure) is connected to the bottom of the front mounting seat 415 through a wire thread sleeve 415a, so as to position the subframe when it is connected to the front mounting seat 415. The rear mounting seat 466 is arranged below the middle section of the main body of the longitudinal beam 411 to facilitate the connection of the subframe. The front mounting seat 415 and the rear mounting seat 466 can be arranged symmetrically in the body frame structure. The body frame structure forms a four-point mounting of the subframe through two subframe mounting seats on each of the left and right sides, ensuring the stability of the body frame structure.

[0092] Optionally, see Figure 13 and Figure 14The rear mounting seat 466 has a first connecting surface 466b and a second connecting surface 466c. In the vehicle width direction, the first connecting surface is connected to the side of the longitudinal beam main body 411 away from the passenger compartment, and in the vehicle height direction, the second connecting surface is connected to the bottom surface of the longitudinal beam main body 411.

[0093] Specifically, the rear mounting bracket 466 is welded to different surfaces of the longitudinal beam main body 411 via a first connecting surface 466b and a second connecting surface 466c, respectively. It is also connected to the longitudinal beam main body 411 in the Y-direction via a second bolt 466d, and in the Z-direction via a second bolt 466d. This combination of welding and bolting reduces the vibration frequency of a portion of the rear suspension of the vehicle frame structure, thus improving the connection strength and dynamic stiffness of the subframe mounting points on the vehicle frame structure.

[0094] Optionally, the vehicle frame structure further includes a first frame crossbeam 464, the main body of the longitudinal beam 411 includes a left longitudinal beam and a right longitudinal beam, and the rear mounting seat includes a left rear mounting seat and a right rear mounting seat;

[0095] The two ends of the first crossbeam 464 of the frame are respectively connected to the left longitudinal beam and the right longitudinal beam, and the two ends of the first crossbeam 464 of the frame are respectively connected to the left rear mounting seat and the right rear mounting seat.

[0096] Specifically, the rear mounting bracket 466 is welded to the main body of the longitudinal beam 411 and the first crossbeam of the frame 464 via a first connecting surface 466b and a second connecting surface 466c, respectively. It is connected to the main body of the longitudinal beam 411 in the Y-direction via a second bolt 466d, and in the Z-direction via a second bolt 466d passing through the first crossbeam of the frame 464 and connecting to the main body of the longitudinal beam 411. This combination of welding and bolting reduces the vibration frequency of a portion of the rear suspension of the vehicle frame structure, helping to improve the connection strength and dynamic stiffness of the subframe mounting points on the vehicle frame structure.

[0097] Optionally, it also includes a mounting sleeve 466a, which is adapted to be connected to the subframe. The rear mounting base 466 is provided with a mounting hole, and the mounting sleeve 466a is disposed in the mounting hole and fixed in the rear mounting base 466.

[0098] Specifically, the mounting sleeve 466a is tapered and has a flange at its lower end, the edge of which is welded to the rear mounting seat 466. A circular sleeve fixing plate is added to the upper end of the mounting sleeve 466a; the inner side of the fixing plate is welded to the mounting sleeve 466a, and the outer side is welded to the rear mounting seat 466. The mounting sleeve 466a is formed by casting and machining. The inner diameter of the mounting sleeve 466a is threaded to match the rear subframe mounting bolts to ensure the installation stability of the subframe.

[0099] Optionally, in the vehicle width direction, the mounting sleeve 466a is disposed on the side of the longitudinal beam body 411 away from the passenger compartment.

[0100] Specifically, the mounting sleeve 466a is located outside the main body of the longitudinal beam 411 to form a cantilever structure, which can ensure the installation stability of the subframe and improve the structural strength of the vehicle frame structure when the subframe is connected to the outside of the main body of the longitudinal beam 411.

[0101] Optionally, see Figure 10 and Figure 14 It also includes a second crossbeam 462 of the frame, and the front joint of the longitudinal beam includes a left front joint and a right front joint of the longitudinal beam. The two ends of the second crossbeam of the frame are respectively connected to the left front joint and the right front joint of the longitudinal beam.

[0102] The longitudinal beam main body 411 includes a left longitudinal beam main body and a right longitudinal beam main body. The left front joint of the longitudinal beam is connected to the first end of the left longitudinal beam main body, and the right front joint of the longitudinal beam is connected to the first end of the right longitudinal beam main body.

[0103] Specifically, when the two ends of the second crossbeam 462 of the frame are connected to the left front joint of the longitudinal beam and the right front joint of the longitudinal beam respectively, since the two ends of the first crossbeam 464 of the frame are connected to the left longitudinal beam and the right longitudinal beam respectively, the second crossbeam 462 of the frame, the first crossbeam 464 of the frame, the left longitudinal beam and the right longitudinal beam form a ring frame structure, which improves the stability of the vehicle frame structure.

[0104] In addition, the cavity formed by the second crossbeam 462 of the frame, the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam on the left, the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam on the right, and the passenger compartment connecting plate 231 together form a frame structure, which improves the stability and force transmission effect of the vehicle frame structure.

[0105] Optionally, see Figure 7 and Figure 8It also includes a passenger compartment connecting plate 231, which has a cavity inside and is connected to the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam.

[0106] Furthermore, the projection of the cavity in the vehicle's longitudinal direction at least partially overlaps with the projection of the second end of the outer connecting part of the longitudinal beam in the vehicle's longitudinal direction, and the projection of the cavity in the vehicle's longitudinal direction at least partially overlaps with the projection of the second end of the inner connecting part of the longitudinal beam in the vehicle's longitudinal direction.

[0107] Specifically, in the longitudinal direction of the vehicle, the cavity and the outer connection of the longitudinal beam can form a continuous force transmission and buffering structure. At the same time, the cavity and the inner connection of the longitudinal beam can also form a continuous force transmission and buffering structure. When the cavity deforms, it can buffer the impact force transmitted by the outer connection of the longitudinal beam and the inner connection of the longitudinal beam, thereby improving the impact resistance of the vehicle frame structure.

[0108] Optionally, a reinforcing member 232 is provided in the cavity, and the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam are both connected to the reinforcing member.

[0109] Specifically, the cooperation between the reinforcing member 232 and the passenger compartment connecting plate 231 can increase the deformation resistance of the vehicle frame structure, thereby enhancing the rear rigidity of the vehicle frame structure.

[0110] In one embodiment, the vehicle frame structure further includes a passenger compartment connecting plate 231 and a floor 211, with the passenger compartment connecting plate 231 and the floor 211 forming a cavity, the cavity being filled with a reinforcing member 232.

[0111] Specifically, the floor 211 and the passenger compartment connecting plate 231 can be welded or bonded to form a cavity, and a reinforcing member 232 with a certain rigidity is filled inside the cavity. The reinforcing member 232 can be a foam or an elastic member. The foam or elastic member can fill the entire cavity to absorb external impact force when the passenger compartment connecting plate 231 and the floor 211 are deformed by force, thereby preventing the passenger compartment from deforming.

[0112] Specifically, the passenger compartment connecting plate 231 may include at least one of a front bulkhead and a rear bulkhead to buffer the impacts on the front and rear of the vehicle through the reinforcement 232.

[0113] Optionally, the vehicle frame structure further includes a longitudinal beam outer connection mounting plate 416, the longitudinal beam outer connection being connected to the passenger compartment connecting plate via the longitudinal beam outer connection mounting plate;

[0114] and / or;

[0115] It also includes a longitudinal beam inner connection mounting plate 418, the longitudinal beam inner connection being connected to the passenger compartment connection plate via the longitudinal beam inner connection mounting plate.

[0116] Specifically, both the outer connecting part 414 and the inner connecting part 417 of the longitudinal beam can be connected to the main body of the longitudinal beam through the front joint 412 of the longitudinal beam; the outer connecting part and the inner connecting part of the longitudinal beam can be connected to the passenger compartment connecting plate through the outer connecting part mounting plate 416 and the inner connecting part mounting plate 418 of the longitudinal beam, respectively, to ensure the connection strength and reliability of the joint parts in the vehicle body structure.

[0117] Optionally, in the vehicle width direction, two first reinforcing ribs are spaced apart on the mounting plate of the longitudinal beam outer connection part, and the longitudinal beam outer connection part is disposed between the two first reinforcing ribs;

[0118] and / or;

[0119] The longitudinal beam inner connecting part mounting plate is provided with two second reinforcing ribs at intervals, and the longitudinal beam inner connecting part is located between the two second reinforcing ribs.

[0120] Specifically, in the vehicle width direction, a first connection area is formed between two spaced-apart first reinforcing ribs on the longitudinal beam outer connection mounting plate 416. The longitudinal beam outer connection is connected to the first connection area to realize the connection between the main body of the longitudinal beam and the passenger compartment through the longitudinal beam outer connection 414. The longitudinal beam outer connection is located between the two first reinforcing ribs, which means that the two first reinforcing ribs can limit the longitudinal beam outer connection, ensuring the accuracy of the installation position of the longitudinal beam outer connection and avoiding the positional deviation of the longitudinal beam outer connection.

[0121] Specifically, in the vehicle width direction, a second connection area is formed between two second reinforcing ribs spaced apart on the mounting plate 418 of the longitudinal beam inner connection part. The longitudinal beam inner connection part is connected to the second connection area to realize the connection between the main body of the longitudinal beam and the passenger compartment through the longitudinal beam inner connection part. The longitudinal beam inner connection part is located between the two second reinforcing ribs, which means that the two second reinforcing ribs can limit the longitudinal beam inner connection part and ensure the accuracy of the installation position of the longitudinal beam inner connection part.

[0122] Optionally, see Figure 10 The cavity is also provided with an external connecting block 233, and the longitudinal beam external connecting part 414 is connected to the external connecting block 233 through the longitudinal beam external connecting part mounting plate;

[0123] and / or;

[0124] The cavity is also provided with a middle connecting block 234, and the longitudinal beam inner connecting part 417 is connected to the middle connecting block 234 through the longitudinal beam inner connecting part mounting plate.

[0125] In one embodiment, the outer connecting part 414 of the longitudinal beam is connected to the outer connecting block 233 through the outer connecting part mounting plate 416 of the longitudinal beam, and the inner connecting part 417 of the longitudinal beam is connected to the middle connecting block 234 through the inner connecting part mounting plate 418 of the longitudinal beam.

[0126] Specifically, the width of the middle connecting block 234 and the outer connecting block 233 can be designed to be consistent with the width of the cavity. Both the middle connecting block 234 and the outer connecting block 233 are connected to the reinforcing member so that after the reinforcing member 232 is filled in the cavity, the middle connecting block 234 and the outer connecting block 233 can be completely fixed inside the cavity, which facilitates the formation of a force transmission support structure through the middle connecting block 234 and the outer connecting block 233.

[0127] Specifically, see Figure 12 The longitudinal beam inner connecting part 417 is welded to the two third connecting surfaces 418a of the longitudinal beam inner connecting part mounting plate 418 to form an integral whole, and then connected to the third bolt hole 234a of the middle connecting block 234 using the first bolt 418b to form the inner force transmission path of the vehicle frame structure, which facilitates the force transmission in the vehicle frame structure.

[0128] Optionally, see Figure 7 and Figure 10 The vehicle frame structure also includes a sill beam 244 and a sill connecting block 249, wherein the sill connecting block 249 is fixed to the sill beam 244;

[0129] The external connecting block 233 is connected to the threshold connecting block 249.

[0130] Specifically, the sill beam 244 can be an aluminum sill beam, and the sill connecting block 249 is welded to the sill beam 244; see also Figure 7 The two fourth connecting surfaces 416a of the longitudinal beam outer connecting part 414 and the longitudinal beam outer connecting part mounting plate 416 are welded together as a whole, and the outer connecting block 233 is connected to the longitudinal beam outer connecting part mounting plate 416 by passing the third bolt 416b through the first bolt hole 233a, and is connected to the sill connecting block 249 by passing the bolt through the second bolt hole 233b, so as to form the outer force transmission path of the vehicle frame structure, which facilitates the force transmission in the vehicle frame structure.

[0131] Optionally, in the vehicle width direction, the sill connecting block 249 is disposed on the side of the outer connecting block 233 away from the middle connecting block 234.

[0132] Specifically, the sill connecting block 249 is connected to the outer connecting block 233 on the side away from the middle connecting block 234 via connecting bolts 249a. In the vehicle's height direction, the width of the sill connecting block 249 gradually increases from top to bottom, forming a trapezoidal structure. This trapezoidal shape utilizes the material of the sill connecting block 249 itself to increase the force transmission angle, thereby reducing stress concentration at the sill connecting block 249 and ensuring the connection stability of the sill connecting block 249.

[0133] Optionally, see Figure 7 The passenger compartment connecting plate 231 has a connecting plate main body 2311 and a side plate 2312 connected to each other, and the external connecting block 233 is connected to the connecting plate main body and the side plate respectively.

[0134] In one embodiment, the outer connecting block 233 has a triangular structure and is disposed at the connection between the main body of the connecting plate and the side plate; the two short sides of the triangular outer connecting block 233 are respectively connected to the main body of the connecting plate 2311 and the side plate 2312.

[0135] The main body of the connecting plate is located between the outer connecting part 414 of the longitudinal beam and the outer connecting block 233, and the side plate is located between the threshold connecting block 249 and the outer connecting block 233;

[0136] The included angle between the main body of the connecting plate and the side plate is greater than or equal to 90°.

[0137] Specifically, the crew compartment connecting plate 231, the reinforcing member 232, the outer connecting block 233 and the middle connecting block 234 form the rear enclosure assembly 230. The outer connecting block 233 is designed as a multi-cavity triangular structure to improve the structural stability of the outer connecting block 233 and ensure uniform force transmission of the outer connecting block 233.

[0138] Furthermore, the included angle between the main body of the connecting plate at the surface where the first bolt hole 233a is located and the side plate at the surface where the second bolt hole 233b is located is greater than or equal to 90°, which makes the angle between the sill connecting block 249 and the main body of the connecting plate greater than or equal to 90°, so that the force transmission in the vehicle frame structure is smoother and stress concentration is prevented.

[0139] In one embodiment, the side plate is parallel to the outer connection portion 414 of the longitudinal beam, so that the force on the outer connection portion 414 of the longitudinal beam can be linearly transmitted to the side plate, ensuring the effectiveness of force transmission in the vehicle frame structure.

[0140] like Figure 14The diagram shows the force transmission structure of the vehicle frame structure. When the rear of the vehicle frame structure is subjected to an impact force F, in addition to the two middle crossbeams participating in the force distribution, the force can also be transmitted through the Y-shaped structure and the inserts in the rear crossbeam cavity of the driver's compartment. This allows the vehicle frame structure to be constructed as a closed rear frame U-shaped force transmission structure and a parallel sill force transmission structure, effectively dispersing the force concentration during a rear collision of the vehicle frame structure. This makes it easier for the vehicle frame structure to be applied to models with short wheelbases and large impacts on the driver's compartment sill.

[0141] In one embodiment, the outer connecting block 233 is provided with a weight reduction hole, which is a through hole extending along the vehicle height direction, so as to achieve the lightweighting of the vehicle frame structure while ensuring the connection strength of the vehicle frame structure.

[0142] In another embodiment, the outer connecting block 233 and the longitudinal beam outer connecting part mounting plate 416 can be connected by bolts to facilitate the connection and disassembly between the outer connecting block 233 and the longitudinal beam outer connecting part mounting plate 416, thereby improving the strength of the vehicle frame structure connection.

[0143] In one embodiment, the middle connecting block 234 is disposed within the cavity of the passenger compartment connecting plate 231, and both sides of the middle connecting block 234 are connected to the sidewalls of the cavity in the vehicle's longitudinal direction. The middle connecting block 234 is provided with weight-reduction holes, which are through holes extending along the vehicle's height direction, in order to achieve lightweighting of the vehicle frame structure while ensuring the connection strength of the vehicle frame structure. Furthermore, the middle connecting block 234 is bolted to the mounting plate 418 of the inner connecting part of the longitudinal beam to improve the connection strength of the vehicle frame structure.

[0144] Optionally, see Figure 15 The longitudinal beam outer connecting part 414, the longitudinal beam inner connecting part 417, and the longitudinal beam front connector 412 are integrally formed.

[0145] Specifically, the outer connecting part 414 of the longitudinal beam, the inner connecting part 417 of the longitudinal beam, and the front joint 412 of the longitudinal beam form an integrated V-shaped frame structure 400.

[0146] Specifically, the longitudinal beam outer connecting part 414, the longitudinal beam outer connecting part mounting plate 416, the longitudinal beam inner connecting part 417, the longitudinal beam inner connecting part mounting plate 418, and the front mounting seat 415 of the rear subframe are integrally cast to form an integrated V-shaped frame structure 400, which improves the integration of the vehicle body frame structure and reduces the workload of the vehicle body frame structure production process.

[0147] Optionally, the front mounting base, the outer connecting part 414 of the longitudinal beam, the inner connecting part 417 of the longitudinal beam, and the front connector 412 of the longitudinal beam are integrally formed.

[0148] Specifically, when the front mounting base 415 is connected to the bottom of the longitudinal beam outer connecting part 414, the front mounting base, the longitudinal beam outer connecting part 414, the longitudinal beam inner connecting part 417, and the longitudinal beam front connector 412 are integrally formed, which can ensure the positional accuracy and connection strength of the front mounting base 415 connected to the longitudinal beam outer connecting part 414, and ensure the installation stability of the front mounting base 415 on the subframe.

[0149] Optionally, see Figure 3 It also includes a crash beam assembly, wherein the crash beam assembly 420 includes a crash beam 421 and an energy-absorbing box 422;

[0150] The energy-absorbing box 422 is disposed between the anti-collision beam and the main body of the longitudinal beam 411, and the first end of the energy-absorbing box 422 is connected to the anti-collision beam 421, and the second end of the energy-absorbing box is connected to the second end of the main body of the longitudinal beam.

[0151] Specifically, the anti-collision beam assembly 420 is bolted to the longitudinal beam body 411. Compared with welding, this simplifies the production process while ensuring the performance of the vehicle frame structure, and facilitates the maintenance and disassembly of the vehicle frame structure, thereby reducing maintenance costs. When the rear of the vehicle is subjected to a large collision and deforms, the anti-collision beam 421 and the energy-absorbing box 422 absorb energy and deform. After the anti-collision beam 421 and the energy-absorbing box 422 absorb most of the energy, the deformation of the rear frame in the vehicle frame structure can be avoided, thereby improving the impact resistance of the vehicle frame structure.

[0152] Optionally, it also includes an energy-absorbing box connecting part 413, which is provided with an installation cavity. The second end of the longitudinal beam main body is disposed in the installation cavity and connected to the energy-absorbing box connecting part, and the second end of the energy-absorbing box is disposed in the installation cavity and connected to the energy-absorbing box connecting part.

[0153] Specifically, the installation cavity inside the energy-absorbing box connecting part facilitates the insertion and engagement of the second end of the longitudinal beam main body and the second end of the energy-absorbing box with the energy-absorbing box connecting part, thereby improving the positional accuracy of the connection between the second end of the energy-absorbing box and the second end of the longitudinal beam main body.

[0154] In one embodiment, in the vehicle's longitudinal direction, the energy-absorbing box 422 is connected to the front side of the anti-collision beam 421, and the energy-absorbing box 422 is connected to the rear part of the longitudinal beam main body 411 through the energy-absorbing box connecting part 413. The energy-absorbing box connecting part 413 and the longitudinal beam main body 411 can be welded into a whole. The anti-collision beam 421 and the energy-absorbing box 422 in the anti-collision beam assembly 420 are welded into a whole. An aluminum alloy bolt sleeve 413a is welded inside the energy-absorbing box 422. The bolt torque attenuation is reduced by the cooperation between the bolt and the bolt sleeve 413a, thereby increasing the connection strength of the energy-absorbing box connecting part 413.

[0155] Optionally, the outer connecting portion 414 and the inner connecting portion 417 of the longitudinal beam are spaced apart in the vehicle width direction.

[0156] When the anti-collision beam assembly 420 is subjected to the impact force of a vehicle, the impact force will generate two force transmission paths in the vehicle width direction. One path is transmitted to the vehicle sill through the main body of the longitudinal beam 411 and the outer connecting part of the longitudinal beam 414, and the other path is transmitted to the rear crossbeam cavity through the main body of the longitudinal beam 411 and the inner connecting part of the longitudinal beam 417. This reduces the local stress on the passenger compartment and prevents the passenger compartment from undergoing large deformation. This ensures that the installation function requirements of the vehicle body frame structure are met, while also satisfying the energy absorption and force transmission performance during a rear-end collision.

[0157] Optionally, the main body of the longitudinal beam 411 is a rear longitudinal beam, and the passenger compartment connecting plate is a rear bulkhead.

[0158] Specifically, the rear longitudinal beam can be connected to the rear bulkhead through the outer connecting part and the inner connecting part of the longitudinal beam, which can increase the deformation resistance of the rear frame structure of the vehicle body and thus enhance the rear bulkhead stiffness of the rear frame structure of the vehicle body.

[0159] This application also provides a vehicle, which includes the aforementioned vehicle body frame structure.

[0160] Specifically, in the vehicle body frame structure, the body frame structure includes a longitudinal beam main body 411; a longitudinal beam connecting part, the longitudinal beam connecting part including an outer longitudinal beam connecting part 414 and an inner longitudinal beam connecting part 417, the outer longitudinal beam connecting part 414 and the inner longitudinal beam connecting part 417 are connected to the longitudinal beam main body 411 so that the outer longitudinal beam connecting part 414, the inner longitudinal beam connecting part 417 and the longitudinal beam main body 411 form a Y-shaped structure. The outer longitudinal beam connecting part 414 and the inner longitudinal beam connecting part 417 can disperse the force on the longitudinal beam main body 411, thereby reducing the local force on the passenger compartment, improving the collision strength of the body frame structure, and ensuring the driving safety of the vehicle.

[0161] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A vehicle frame structure, characterized in that, include: Longitudinal beam main body (411); The longitudinal beam connecting part is connected to the longitudinal beam main body (411); The longitudinal beam connecting part includes an outer longitudinal beam connecting part (414) and an inner longitudinal beam connecting part (417), and the first end of the outer longitudinal beam connecting part and the first end of the inner longitudinal beam connecting part are both connected to the first end of the main body of the longitudinal beam. The second end of the outer connecting part of the longitudinal beam is spaced apart from the second end of the inner connecting part of the longitudinal beam, so that the outer connecting part (414), the inner connecting part (417) of the longitudinal beam and the main body part (411) of the longitudinal beam form a Y-shaped structure; It also includes a sill beam (244), a sill connecting block (249), and a passenger compartment connecting plate (231), wherein the sill connecting block (249) is fixed to the sill beam (244); The outer connecting block (233) inside the crew compartment connecting plate (231) is connected to the threshold connecting block (249).

2. The vehicle frame structure according to claim 1, characterized in that, It also includes a longitudinal beam front connector (412), the first end of the longitudinal beam outer connection part (414) and the first end of the longitudinal beam inner connection part (417) are both connected to the first end of the longitudinal beam main body part (411) through the longitudinal beam front connector (412).

3. The vehicle frame structure according to claim 2, characterized in that, The longitudinal beam front connector (412) includes a main connector, an outer connector and an inner connector. The main connector is adapted to be connected to the first end of the longitudinal beam main body (411), the outer connector is adapted to be connected to the first end of the longitudinal beam outer connecting part (414), and the inner connector is adapted to be connected to the first end of the longitudinal beam inner connecting part (417).

4. The vehicle frame structure according to claim 2, characterized in that, It also includes a front mounting base (415) and a rear mounting base (466), the front mounting base (415) being connected to the outer connecting part (414) of the longitudinal beam, and the rear mounting base (466) being connected to the main body of the longitudinal beam; The front mounting bracket (415) and the rear mounting bracket (466) are used to connect the subframe.

5. The vehicle frame structure according to claim 4, characterized in that, The rear mounting base (466) has a first connecting surface (466b) and a second connecting surface (466c). In the vehicle width direction, the first connecting surface is connected to the side of the longitudinal beam body (411) away from the passenger compartment, and in the vehicle height direction, the second connecting surface is connected to the bottom surface of the longitudinal beam body (411).

6. The vehicle frame structure according to claim 4, characterized in that, It also includes a mounting sleeve (466a) adapted to be connected to a subframe, and the rear mounting base (466) is provided with a mounting hole, and the mounting sleeve (466a) is disposed in the mounting hole and fixed in the rear mounting base (466).

7. The vehicle frame structure according to claim 6, characterized in that, In the vehicle width direction, the mounting sleeve (466a) is located on the side of the longitudinal beam body (411) away from the passenger compartment.

8. The vehicle frame structure according to claim 4, characterized in that, It also includes a first crossbeam (464) of the frame, the main body of the longitudinal beam (411) includes a left longitudinal beam and a right longitudinal beam spaced apart in the vehicle width direction, and the rear mounting seat includes a left rear mounting seat and a right rear mounting seat; The two ends of the first crossbeam (464) of the frame are respectively connected to the left longitudinal beam and the right longitudinal beam, and the two ends of the first crossbeam (464) of the frame are respectively connected to the left rear mounting seat and the right rear mounting seat.

9. The vehicle frame structure according to claim 2, characterized in that, It also includes a second crossbeam (462) of the frame, the front joint of the longitudinal beam includes a left front joint of the longitudinal beam and a right front joint of the longitudinal beam, and the two ends of the second crossbeam of the frame are respectively connected to the left front joint of the longitudinal beam and the right front joint of the longitudinal beam; The longitudinal beam body (411) includes a left longitudinal beam body and a right longitudinal beam body. The left front joint of the longitudinal beam is connected to the first end of the left longitudinal beam body, and the right front joint of the longitudinal beam is connected to the first end of the right longitudinal beam body.

10. The vehicle frame structure according to claim 1, characterized in that, The passenger compartment connecting plate (231) is provided with a cavity, and the passenger compartment connecting plate is connected to the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam; Furthermore, the projection of the cavity in the vehicle's longitudinal direction at least partially overlaps with the projection of the second end of the outer connecting part of the longitudinal beam in the vehicle's longitudinal direction, and the projection of the cavity in the vehicle's longitudinal direction at least partially overlaps with the projection of the second end of the inner connecting part of the longitudinal beam in the vehicle's longitudinal direction.

11. The vehicle frame structure according to claim 10, characterized in that, A reinforcing member (232) is provided in the cavity, and the second end of the outer connecting part of the longitudinal beam and the second end of the inner connecting part of the longitudinal beam are both connected to the reinforcing member.

12. The vehicle frame structure according to claim 11, characterized in that, It also includes a longitudinal beam outer connection mounting plate (416), the longitudinal beam outer connection part being connected to the passenger compartment connection plate through the longitudinal beam outer connection mounting plate; and / or; It also includes a longitudinal beam inner connection mounting plate (418), the longitudinal beam inner connection being connected to the crew compartment connection plate via the longitudinal beam inner connection mounting plate.

13. The vehicle frame structure according to claim 12, characterized in that, In the vehicle width direction, two first reinforcing ribs are spaced apart on the mounting plate of the longitudinal beam outer connection part, and the longitudinal beam outer connection part is located between the two first reinforcing ribs; and / or; The longitudinal beam inner connecting part mounting plate is provided with two second reinforcing ribs at intervals, and the longitudinal beam inner connecting part is located between the two second reinforcing ribs.

14. The vehicle frame structure according to claim 13, characterized in that, The cavity is also provided with an external connecting block (233), and the longitudinal beam external connecting part (414) is connected to the external connecting block (233) through the longitudinal beam external connecting part mounting plate; and / or; The cavity is also provided with a middle connecting block (234), and the longitudinal beam inner connecting part (417) is connected to the middle connecting block (234) through the longitudinal beam inner connecting part mounting plate.

15. The vehicle frame structure according to claim 14, characterized in that, In the vehicle width direction, the sill connecting block is located on the side of the outer connecting block away from the middle connecting block.

16. The vehicle frame structure according to claim 1, characterized in that, The crew compartment connecting plate (231) has a connecting plate main body (2311) and a side plate (2312) connected to each other, and the external connecting block (233) is connected to the connecting plate main body and the side plate respectively.

17. The vehicle frame structure according to claim 4, characterized in that, The outer connecting part (414), the inner connecting part (417), and the front joint (412) of the longitudinal beam are integrally formed.

18. The vehicle frame structure according to claim 17, characterized in that, The front mounting base, the outer connecting part (414) of the longitudinal beam, the inner connecting part (417) of the longitudinal beam, and the front connector (412) of the longitudinal beam are integrally formed.

19. The vehicle frame structure according to claim 1, characterized in that, It also includes a crash beam assembly, which includes a crash beam (421) and an energy-absorbing box (422). The energy-absorbing box (422) is disposed between the anti-collision beam and the main body of the longitudinal beam (411), and the first end of the energy-absorbing box (422) is connected to the anti-collision beam (421), and the second end of the energy-absorbing box is connected to the second end of the main body of the longitudinal beam.

20. The vehicle frame structure according to claim 19, characterized in that, It also includes an energy-absorbing box connecting part (413), the energy-absorbing box connecting part is provided with an installation cavity, the second end of the longitudinal beam main body is disposed in the installation cavity and connected to the energy-absorbing box connecting part, and the second end of the energy-absorbing box is disposed in the installation cavity and connected to the energy-absorbing box connecting part.

21. The vehicle frame structure according to claim 1, characterized in that, The outer connecting part (414) and the inner connecting part (417) of the longitudinal beam are spaced apart in the vehicle width direction.

22. The vehicle frame structure according to claim 10, characterized in that, The main body of the longitudinal beam (411) is the rear longitudinal beam, and the passenger compartment connecting plate is the rear bulkhead.

23. A vehicle, characterized in that, Includes the vehicle frame structure as described in any one of claims 1-22.

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