Body structure and vehicle

Abstract

This application provides a vehicle body structure and a vehicle. The vehicle body structure includes longitudinal beams and longitudinal beam outer struts, the latter connected to the end of the longitudinal beam facing the passenger compartment. A mounting assembly includes a first mounting seat and a second mounting seat, the first mounting seat connected to the longitudinal beam outer strut, and the second mounting seat connected to the side of the longitudinal beam away from the passenger compartment. The first and second mounting seats are used to connect a subframe. The first and second mounting seats provide mounting points for the subframe, ensuring the subframe's installation stability and improving the structural strength of the vehicle body structure.

Description

Technical Field

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

[0002] In the existing technology, the shock absorbers and springs of a vehicle occupy a large space in the structure, which takes up the installation space of the subframe, making it difficult to install the subframe on the longitudinal beam and reducing the stability of the subframe installation. Summary of the Invention

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

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

[0005] Longitudinal beam and longitudinal beam external strut, the longitudinal beam external strut being connected to the end of the longitudinal beam facing the vehicle passenger compartment;

[0006] The mounting assembly includes a first mounting base and a second mounting base, wherein the first mounting base is connected to the outer strut of the longitudinal beam;

[0007] In the vehicle width direction, the second mounting base is connected to the side of the longitudinal beam away from the passenger compartment;

[0008] The first mounting base and the second mounting base are used to connect the subframe.

[0009] Optionally, the first mounting base includes a mounting profile;

[0010] In the vehicle height direction, the top of the mounting profile is connected to the bottom of the longitudinal beam outer strut, and the mounting profile is provided with a first mounting cavity, which is adapted to the subframe connection.

[0011] It also includes a mounting component disposed within a first mounting cavity and connected to the mounting profile, the mounting component being adapted to connect to a subframe.

[0012] Optionally, it also includes mounting a sealing plate;

[0013] The mounting profile is provided with a plurality of through holes extending along the vehicle height direction, and the mounting cover plate is provided at the bottom of the mounting profile and covers the through holes.

[0014] Optionally, the top of the mounting profile has an outward flange and an inward flange arranged opposite to each other, and the longitudinal beam outer support is disposed between the outward flange and the inward flange, and is connected to the outward flange and the inward flange respectively.

[0015] Optionally, it also includes an internal strut in the longitudinal beam, the internal strut being connected to the end of the longitudinal beam facing the vehicle's passenger compartment;

[0016] Furthermore, the end of the outer support rod of the longitudinal beam that is away from the longitudinal beam is spaced apart from the end of the inner support rod of the longitudinal beam that is away from the longitudinal beam.

[0017] Optionally, in the vehicle width direction, the end of the outer strut of the longitudinal beam away from the longitudinal beam is spaced apart from the end of the inner strut of the longitudinal beam away from the longitudinal beam.

[0018] Optionally, in the vehicle width direction, the outer strut of the longitudinal beam is disposed outside the inner strut of the longitudinal beam.

[0019] Optionally, the length of the longitudinal beam outer strut in the vehicle height direction is greater than the length of the longitudinal beam outer strut in the vehicle width direction.

[0020] Optionally, the second mounting base includes a mounting bracket, and the second mounting base is provided with a second mounting cavity, which is adapted to be connected to the subframe.

[0021] Optionally, it further includes an installation sleeve disposed within the second mounting cavity and connected to the second mounting base.

[0022] Optionally, the second mounting base is provided with at least one through hole extending in the longitudinal direction of the vehicle.

[0023] Optionally, it also includes a frame beam, the longitudinal beam including a left longitudinal beam and a right longitudinal beam, the two ends of the frame beam being connected to the left longitudinal beam and the right longitudinal beam respectively;

[0024] The second mounting base includes a left mounting support and a right mounting support, and the two ends of the frame beam are respectively connected to the left mounting support and the right mounting support.

[0025] Optionally, it also includes a left crossbeam support beam and a right crossbeam support beam, the left crossbeam support beam being obliquely connected between the left longitudinal beam and the frame crossbeam, and the right longitudinal beam being obliquely connected between the right longitudinal beam and the frame crossbeam.

[0026] Optionally, in the vehicle height direction, the frame crossbeam is disposed below the longitudinal beam, and at least part of the second mounting seat is disposed below the frame crossbeam.

[0027] Optionally, the projection of the second mounting seat in the vehicle height direction at least partially overlaps with the projection of the frame beam in the vehicle height direction;

[0028] The projection of the second mounting base in the vehicle width direction at least partially overlaps with the projection of the frame beam in the vehicle width direction.

[0029] Optionally, the projection of the second mounting base in the vehicle height direction at least partially overlaps with the projection of the longitudinal beam in the vehicle height direction;

[0030] The projection of the second mounting base in the vehicle width direction at least partially overlaps with the projection of the longitudinal beam in the vehicle width direction.

[0031] Optionally, the longitudinal beam is connected to the passenger compartment connecting plate via the outer longitudinal beam support rod and the inner longitudinal beam support rod.

[0032] Optionally, it also includes an outer strut connecting plate and an inner strut connecting plate;

[0033] The outer strut of the longitudinal beam is connected to the passenger compartment via the outer strut connecting plate, and the inner strut of the longitudinal beam is connected to the passenger compartment connecting plate via the inner strut connecting plate.

[0034] According to a second aspect of the embodiments of this application, a vehicle is provided, including a subframe and the body structure described in the first aspect;

[0035] The subframe is connected to the first mounting base and the second mounting base.

[0036] One technical advantage of this application is:

[0037] This application provides a vehicle body structure including longitudinal beams and longitudinal beam outer struts. The longitudinal beam outer struts are obliquely connected to the end of the longitudinal beam facing the vehicle's passenger compartment. A mounting assembly includes a first mounting seat and a second mounting seat. The first mounting seat is connected to the longitudinal beam outer strut, and the second mounting seat is connected to the side of the longitudinal beam away from the passenger compartment. The first and second mounting seats are used to connect to a subframe. The first and second mounting seats provide mounting points for the subframe, ensuring the subframe's installation stability and improving the structural strength of the vehicle body structure.

[0038] 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

[0039] 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.

[0040] Figure 1 A partial schematic diagram of a vehicle body structure provided in this application embodiment. Figure 1 ;

[0041] Figure 2 This is a schematic diagram of a first mounting base for a vehicle body structure provided in an embodiment of this application;

[0042] Figure 3 This is a schematic diagram of an installation profile for a vehicle body structure provided in an embodiment of this application;

[0043] Figure 4 A cross-sectional view of a vehicle body structure mounting profile in the Z direction provided in an embodiment of this application;

[0044] Figure 5 A partial schematic diagram of a vehicle body structure provided in this application embodiment. Figure 2 ;

[0045] Figure 6 A schematic diagram illustrating the cooperation between the longitudinal beam outer strut and the first mounting base of a vehicle body structure, as provided in an embodiment of this application;

[0046] Figure 7 A schematic diagram of a vehicle body structure provided in an embodiment of this application;

[0047] Figure 8 A partial cross-sectional view of a vehicle body structure provided in an embodiment of this application;

[0048] Figure 9 An X-axis cross-sectional view of a vehicle body structure provided in an embodiment of this application;

[0049] Figure 10 A perspective view of a vehicle body structure provided in an embodiment of this application;

[0050] Figure 11 This application provides a schematic diagram of the stress on the mounting profile of a vehicle body structure.

[0051] Figure 12 A schematic diagram of the force distribution on the left mounting bracket of a vehicle body structure provided in this application embodiment;

[0052] Figure 13 A partial schematic diagram of a vehicle body structure provided in this application embodiment. Figure 3 .

[0053] in:

[0054] 20. Passenger compartment; 40. Rear frame; 411Y, Y-type frame structure; 411. Left longitudinal beam; 411'. Right longitudinal beam; 412. Connecting casting; 414. Longitudinal beam outer strut; 415z. First mounting seat; 415. Mounting profile; 415a. Mounting component; 415b. Outer flange; 415c. Inner flange; 416. Left mounting end plate; 416'. Right mounting end plate; 417. Outer strut connecting plate; 418. Longitudinal beam inner strut; 419. Inner strut connecting plate; 464. Frame crossbeam; 465. Left crossbeam support beam; 465'. Right crossbeam support beam; 466z. Second mounting seat; 466. Left mounting support; 466'. Right mounting support; 467. Mounting sleeve; 468. Sleeve fixing end plate; 50. Subframe; 501. Reinforcing beam assembly; Detailed Implementation

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] Reference Figure 1 This application provides a vehicle body structure, which includes:

[0062] The longitudinal beam and the longitudinal beam external support rod 414 are connected to the end of the longitudinal beam facing the vehicle passenger compartment 20, so as to realize the connection between the longitudinal beam and the passenger compartment through the longitudinal beam external support rod 414;

[0063] Specifically, the longitudinal beam can be either a rear longitudinal beam or a front longitudinal beam; correspondingly, the longitudinal beam external strut 414 can be either a rear longitudinal beam external strut or a front longitudinal beam external strut.

[0064] The mounting assembly includes a first mounting base 415z and a second mounting base 466z, wherein the first mounting base 415z is connected to the outer strut 414 of the longitudinal beam.

[0065] In the vehicle width direction, the second mounting bracket 466z is connected to the side of the longitudinal beam away from the passenger compartment;

[0066] The first mounting base 415z and the second mounting base 466z are used to connect the subframe.

[0067] Specifically, the vehicle body structure is used in vehicles with a length direction, a width direction, and a height direction. Specifically, the length direction of the vehicle can be the X direction in the figure, the width direction of the vehicle can be the Y direction in the figure, and the height direction of the vehicle can be the Z direction in the figure.

[0068] Both the first mounting base 415z and the second mounting base 466z may include aluminum extruded profile structural components, thereby simplifying the structural manufacturing process of the first mounting base 415z and the second mounting base 466z while improving the dimensional accuracy and performance reliability of the two mounting bases. Furthermore, the first mounting base 415z and the second mounting base 466z provide mounting points for the subframe, ensuring stable installation of the subframe.

[0069] In addition, the second mounting base 466z is connected to the longitudinal beam, and the second mounting base 466z is located outside the longitudinal beam to form a cantilever structure, which can ensure the installation stability of the subframe when the subframe is connected to the outside of the longitudinal beam and improve the structural strength of the vehicle body structure.

[0070] The vehicle body structure provided in this embodiment includes longitudinal beams and longitudinal beam outer struts 414, the longitudinal beam outer struts 414 being connected to the end of the longitudinal beam facing the vehicle passenger compartment 20; and a mounting assembly including a first mounting seat 415z and a second mounting seat 466z, the first mounting seat 415z being connected to the longitudinal beam outer struts 414, and the second mounting seat 466z being connected to the side of the longitudinal beam away from the passenger compartment; the first mounting seat 415z and the second mounting seat 466z are used to connect to a subframe. The first mounting seat 415z and the second mounting seat 466z provide mounting points for the subframe, ensuring the installation stability of the subframe and improving the structural strength of the vehicle body structure.

[0071] Optionally, see Figure 2 The first mounting base 415z includes a mounting profile 415.

[0072] In the vehicle height direction, the top of the mounting profile 415 is connected to the bottom of the longitudinal beam outer support rod 414. The mounting profile is provided with a first mounting cavity, which is suitable for the subframe connection. That is, the subframe can be directly installed in the first mounting cavity, simplifying the subframe connection structure.

[0073] Optionally, it also includes a mounting member 415a, which is disposed within the first mounting cavity and connected to the mounting profile, and the mounting member is adapted to be connected to the subframe.

[0074] Specifically, the mounting profile 415 is an aluminum extruded profile structural component with a mounting cavity. When the mounting sealing plate is connected to the mounting profile 415 via the mounting member 415a, the mounting member 415a can be exposed from the bottom of the mounting profile 415 to provide a mounting position for the subframe on the first mounting seat 415z. This achieves weight reduction of the vehicle body structure while ensuring the installation stability of the subframe.

[0075] Optionally, it also includes mounting a sealing plate;

[0076] The mounting profile is provided with a plurality of through holes extending along the vehicle height direction, and the mounting cover plate is provided at the bottom of the mounting profile 415 and covers the through holes.

[0077] Specifically, since the first mounting base 415z includes a mounting profile 415, a mounting component 415a and a mounting sealing plate, the mounting profile 415 is connected to the bottom of the longitudinal beam outer support rod 414, and the mounting sealing plate is connected to the mounting profile 415 through the mounting component 415a.

[0078] Specifically, the mounting profile 415 is an aluminum extrusion profile structural component with a cavity. When the mounting sealing plate is connected to the mounting profile 415 through the mounting member 415a, the mounting sealing plate can seal or block the cavity inside the mounting profile 415 (the cavity is not sealed) to prevent external impurities from entering the mounting cavity. At the same time, the mounting member 415a can be exposed from the bottom of the mounting sealing plate to provide a mounting position for the subframe on the first mounting seat 415z.

[0079] Optionally, see Figure 3 The top of the mounting profile 415 has an outer flange 415b and an inner flange 415c arranged opposite to each other. The longitudinal beam outer support rod 414 is disposed between the outer flange 415b and the inner flange 415c, and is connected to the outer flange 415b and the inner flange 415c respectively.

[0080] Specifically, when the first mounting base 415z is connected to the bottom of the longitudinal beam outer support rod 414, in order to avoid affecting the strength by opening holes in the first mounting base 415z and the longitudinal beam outer support rod 414, the longitudinal beam outer support rod 414 can be snapped or glued between the outer flange 415b and the inner flange 415c, and then the longitudinal beam outer support rod 414 is welded to the outer flange 415b and the inner flange 415c.

[0081] Furthermore, after the longitudinal beam outer support rod 414 is engaged between the outer flange 415b and the inner flange 415c, it can form gaps with the outer flange 415b and the inner flange 415c respectively. The width of the gap is in the range of 0.1-1mm, so as to ensure the welding strength between the longitudinal beam outer support rod 414 and the outer flange 415b and the inner flange 415c, based on the fact that the longitudinal beam outer support rod 414 is engaged between the outer flange 415b and the inner flange 415c.

[0082] In one embodiment, considering the snap-fit ​​accuracy and welding quality of the longitudinal beam outer strut 414, the gap width between the longitudinal beam outer strut 414 and the outer flange 415b and the inner flange 415c can both be 0.5mm.

[0083] Optionally, see Figure 4 The mounting profile 415 is extruded in the height direction of the vehicle, and the extruded section of the mounting profile 415 includes an outer ring, an inner ring, and a plurality of connecting ribs connecting the outer ring and the inner ring.

[0084] The mounting component 415a is inserted into the inner ring and is threaded into the inner ring.

[0085] Specifically, in Figure 4 In the Z-direction (perpendicular to the plane of the paper) shown, the outer ring around the extruded section of the mounting profile 415 is rectangular, and the inner ring in the center is circular. The mounting profile 415 includes six connecting ribs, which radiate from the central ring to the outer ring. The central ring is a sleeve structure in three-dimensional space. The mounting part 415a can be screwed into the sleeve structure clockwise to provide a front mounting point for the subframe. The depth to which the mounting part 415a is screwed into the sleeve structure must meet the chassis requirements for bolt engagement length.

[0086] The mounting profile 415 is formed by extrusion, which makes the mounting profile 415 simple in process, high in dimensional accuracy, low in mold cost and high in extrusion strength, thus ensuring the connection strength to the subframe.

[0087] Optionally, see Figure 5 The vehicle body structure also includes an inner strut 418 in the longitudinal beam, which is connected to the end of the longitudinal beam facing the passenger compartment.

[0088] Furthermore, the end of the outer support rod of the longitudinal beam that is away from the longitudinal beam is spaced apart from the end of the inner support rod of the longitudinal beam that is away from the longitudinal beam.

[0089] Specifically, the outer strut 414 of the longitudinal beam, the inner strut 418 of the longitudinal beam, and the longitudinal beam form a Y-shaped frame structure 411Y.

[0090] Specifically, the Y-shaped frame structure 411Y can be the root structure of the longitudinal beam of the rear frame 40, and the outer strut 414 and the inner strut 418 of the longitudinal beam can be connected to the longitudinal beam through the connecting casting 412; the Y-shaped frame structure 411Y is connected to the passenger compartment 20 by bolts and adhesive through the outer strut connecting plate 417 and the inner strut connecting plate 419. The combined connection process can ensure the connection strength and reliability of the joint in the vehicle body structure, and also helps to improve the torsional stiffness of the vehicle body structure.

[0091] Optionally, in the vehicle width direction, the end of the outer strut of the longitudinal beam away from the longitudinal beam is spaced apart from the end of the inner strut of the longitudinal beam away from the longitudinal beam.

[0092] Specifically, the ends of the outer and inner longitudinal beam struts away from the longitudinal beam are connected to the front or rear bulkhead of the vehicle. The front or rear bulkhead of the vehicle is provided with a crossbeam or cavity extending along the width direction of the vehicle. The ends of the outer and inner longitudinal beam struts away from the longitudinal beam are connected to the crossbeam or cavity. Therefore, the outer and inner longitudinal beam struts can form two force transmission paths in the width direction of the vehicle, which can increase the force transmission area in the width direction of the vehicle and enable the force of the longitudinal beam to be better transmitted to the crossbeam and cavity.

[0093] Optionally, in the vehicle width direction, the outer strut of the longitudinal beam is disposed outside the inner strut of the longitudinal beam.

[0094] Specifically, the outer strut of the longitudinal beam is located on the side of the inner strut of the longitudinal beam away from the passenger compartment; when the left and right longitudinal beams are close together, the outer strut of the longitudinal beam is located near the outer cantilever, which can increase the installation space of the subframe and facilitate the installation and disassembly of the subframe.

[0095] Optionally, see Figure 5 The length of the longitudinal beam outer support rod 414 in the vehicle height direction is greater than the length of the longitudinal beam outer support rod 414 in the vehicle width direction.

[0096] Specifically, the longitudinal beam outer strut 414 provides a mounting point for the subframe in the vehicle height direction. When the front mounting point of the subframe is offset from the longitudinal beam in the Z direction, the longitudinal beam outer strut 414 has a large cross section in the vehicle height direction, which can solve the problems of difficulty in providing mounting points on the vehicle body and low dynamic stiffness of the mounting points. On the other hand, after the longitudinal beam is connected to the passenger compartment 20 through the longitudinal beam outer strut 414, the higher Y-direction cross section of the longitudinal beam outer strut 414 increases the rollover resistance of the entire rear frame 40 in the Y direction and improves the Y-direction dynamic stiffness of the front mounting point of the subframe on the longitudinal beam outer strut 414.

[0097] Furthermore, since the length of the longitudinal beam outer strut 414 in the vehicle height direction is greater than the length of the longitudinal beam outer strut 414 in the vehicle width direction, the vertical force transmission area of ​​the vehicle body structure can be increased while achieving weight reduction of the vehicle body structure.

[0098] Specifically, the end of the outer strut of the longitudinal beam away from the longitudinal beam and the end of the inner strut of the longitudinal beam away from the longitudinal beam are spaced apart from each other on the left and right. Furthermore, the outer strut of the longitudinal beam 414 has a large length in the vehicle height direction, thereby forming a large force transmission area in both the vehicle width and height directions, which increases the force-bearing surface formed by the outer strut and the inner strut of the longitudinal beam.

[0099] Optionally, the second mounting base 466z includes a mounting support, which has a second mounting cavity. The second mounting cavity is adapted to be connected to the subframe, that is, the subframe can be directly installed in the second mounting cavity, simplifying the subframe connection structure.

[0100] Optionally, it also includes a mounting sleeve 467, which is disposed in the second mounting cavity and connected to the mounting support.

[0101] Specifically, see Figure 8 and Figure 9 The second mounting base 466z includes a mounting support, a mounting sleeve 467 and a sleeve fixing plate 468. The mounting support is provided with a second mounting cavity, and the sleeve fixing plate 468 is connected inside the second mounting cavity. The mounting sleeve 467 passes through the second mounting cavity and is fixed to the sleeve fixing plate 468.

[0102] Optionally, the second mounting base 466z is provided with at least one through hole extending in the front-rear direction of the vehicle.

[0103] Specifically, the mounting bracket is an aluminum alloy profile bracket extruded in the X direction, with one or more through holes extending along the front-rear direction of the vehicle provided in the second mounting seat 466z, so that the mounting bracket has the characteristics of simple process, high dimensional accuracy and high extrusion performance, and can meet the requirements of strength, durability and dynamic stiffness of the mounting point on the mounting bracket.

[0104] The threaded hole at the rear mounting point of the subframe is provided by a mounting sleeve 467, which is tapered and passes through the mounting bracket from bottom to top. The lower end of the mounting sleeve 467 is designed with an end face flange, which is welded to the mounting bracket at the edge of the flange face. A circular sleeve fixing plate 468 is added to the upper end of the mounting sleeve 467. The inner side of the sleeve fixing plate 468 is welded to the mounting sleeve 467, and the outer side is welded to the mounting bracket.

[0105] Specifically, the mounting sleeve 467 is formed using casting and machining processes. The inner diameter of the mounting sleeve 467 is tapped with thread 467A to match the rear mounting bolt of the subframe. The thread length of the mounting sleeve 467 should be greater than the thread length of the rear mounting bolt of the subframe to ensure the stability of the mounting sleeve 467 on the subframe. The characteristic of the mounting sleeve 467 being larger at the bottom and smaller at the top can prevent abnormal noise caused by the mounting sleeve 467 contacting the internal ribs of the mounting bracket.

[0106] Furthermore, because the rear mounting point of the subframe is offset from the longitudinal beam in the Y direction, the subframe forms a cantilever structure. To improve the stability of the mounting bracket, it is connected to the longitudinal beam using 466A bolts, and the edges of the contact surfaces between the mounting bracket and the longitudinal beam are designed with arc welding. Through dual fixation in the Z and Y directions, the mounting bracket and the longitudinal beam form an integral structure, allowing the longitudinal beam, with its higher cross-sectional force, to absorb more impact forces from the subframe.

[0107] It is worth noting that the aforementioned second mounting bracket 466z illustrates a left second mounting bracket on the left side of the vehicle body structure. Due to the left-right symmetry of the vehicle body structure, the right side of the vehicle body structure also has a right second mounting bracket symmetrical to the left second mounting bracket. Furthermore, based on the symmetry of the vehicle body structure illustrated in the accompanying drawings, components with left-right symmetrical structures, even if not distinguished by left or right in the specification, still fall within the scope of protection of this application.

[0108] Optionally, see Figure 7 The vehicle body structure also includes a frame crossbeam 464, and the longitudinal beams include a left longitudinal beam 411 and a right longitudinal beam 411'. The two ends of the frame crossbeam 464 are respectively between the left longitudinal beam 411 and the right longitudinal beam 411'.

[0109] The second mounting base 466z includes a left mounting support 466 and a right mounting support 466', and the two ends of the frame beam are respectively connected to the left mounting support and the right mounting support.

[0110] Specifically, the frame beam 464 is located between the left mounting support and longitudinal beam and the right mounting support and longitudinal beam. The left mounting support and longitudinal beam are connected in the Y direction by bolts 466A and threaded holes 411S1. The left frame beam 464 is connected to the left mounting support and longitudinal beam in the Z direction by bolts 466A and threaded holes 411S2. At the same time, the right frame beam 464 is connected to the right mounting support and longitudinal beam in the Z direction by bolts. The frame beam 464 is designed with a sleeve structure 464L at the bolt position. After the bolt passes through the sleeve structure, the strength and durability of the bolt connection can be improved, and the bolt torque attenuation and failure can be reduced.

[0111] Optionally, see Figure 9 The vehicle body structure also includes a left crossbeam support beam 465 and a right crossbeam support beam 465'. The left crossbeam support beam 465 is obliquely connected between the left longitudinal beam 411 and the frame crossbeam 464, and the right longitudinal beam 411' is obliquely connected between the right longitudinal beam 411' and the frame crossbeam 464.

[0112] In one embodiment, the left crossbeam support beam 465 and the right crossbeam support beam 465' are symmetrically arranged.

[0113] Specifically, when the left crossbeam support beam 465 and the right crossbeam support beam 465' are symmetrically arranged, the left crossbeam support beam 465, the right crossbeam support beam 465', and the frame crossbeam 464 form a K-shaped structure 464z. The lower parts of the left crossbeam support beam 465 and the right crossbeam support beam 465' are in contact with the frame crossbeam 464, and are reinforced by arc welding at the edges of the contact surfaces; the upper parts of the left crossbeam support beam 465 and the right crossbeam support beam 465' are in contact with the inner surfaces of the left longitudinal beam 411 and the right longitudinal beam 411', respectively, and are reinforced by arc welding at the contact points.

[0114] Furthermore, the aforementioned K-type structure 464z is connected to the mounting supports and longitudinal beams at both ends of the frame crossbeam 464 via bolts. This K-type structure 464z connects and fixes the left longitudinal beam 411, right longitudinal beam 411', left crossbeam support beam 465, and right crossbeam support beam 465' to form an integral structure. This further improves the dynamic stiffness of the subframe rear mounting point on the vehicle body structure; it also enhances the stability of the vehicle body structure and the torsional stiffness of the entire vehicle.

[0115] Optionally, in the vehicle height direction, the frame crossbeam 464 is disposed on the underside of the longitudinal beam, and at least part of the second mounting base 466z is disposed on the underside of the frame crossbeam.

[0116] Specifically, on the lower side of the longitudinal beam, the left frame crossbeam 464 is fitted with the left mounting bracket. That is, in the height direction of the vehicle, the longitudinal beam, at least part of the frame crossbeam, and at least part of the second mounting bracket are arranged sequentially from top to bottom. The longitudinal beam, the frame crossbeam, and the second mounting bracket are connected in the Z direction by a locking member. At the same time, the right frame crossbeam 464 is connected to the right mounting bracket and the longitudinal beam in the Z direction by a locking member, ensuring the stability of the connection between the frame crossbeam 464, the mounting bracket, and the longitudinal beam.

[0117] Optionally, the projection of the second mounting seat in the vehicle height direction at least partially overlaps with the projection of the frame beam 464 in the vehicle height direction;

[0118] The projection of the second mounting base in the vehicle width direction at least partially overlaps with the projection of the frame beam 464 in the vehicle width direction.

[0119] Specifically, the second mounting base cooperates with the frame crossbeam 464 in the vehicle height and width directions, so that the second mounting base 466z forms a semi-enclosed mounting structure for the longitudinal beam and the frame crossbeam 464, thereby forming a protective structure on the bottom surface of the side of the longitudinal beam and improving the overall strength of the vehicle body structure.

[0120] Optionally, the projection of the second mounting base in the vehicle height direction at least partially overlaps with the projection of the longitudinal beam in the vehicle height direction;

[0121] The projection of the second mounting base in the vehicle width direction at least partially overlaps with the projection of the longitudinal beam in the vehicle width direction.

[0122] Specifically, the second mounting base is connected to the bottom surface of the longitudinal beam and the side of the longitudinal beam away from the passenger compartment. The second mounting base cooperates with the longitudinal beam in the vehicle height and width directions, so that the second mounting base 466z forms a semi-enclosed mounting structure for the longitudinal beam, thereby forming a protective structure on the bottom surface of the side of the longitudinal beam and improving the overall strength of the vehicle body structure.

[0123] Optionally, see Figures 10 to 12 The mounting plate includes a left mounting plate 416 and a right mounting plate 416', and the mounting support includes a left mounting support 466 and a right mounting support 466'. The left mounting plate 416 and the right mounting plate 416' are respectively connected to the mounting profile 415 on the left side and the mounting profile 415 on the right side. The left mounting support 466 and the right mounting support 466' are respectively connected to the left longitudinal beam 411 and the right longitudinal beam 411', so that the left mounting plate 416, the right mounting plate 416', the left mounting support 466, and the right mounting support 466' form a four-point support, so as to facilitate a four-point connection to the subframe.

[0124] like Figure 10 As shown, the vehicle body structure bears four forces F1, F2, F3, and F4 from the chassis. These forces are transmitted to the vehicle body structure through the left mounting plate 416, the right mounting plate 416', the left mounting bracket 466, and the right mounting bracket 466' at the front and rear mounting points of the subframe. Through the planning of the force transmission path at the mounting points on the vehicle body structure, for example, when the force is transmitted from the left mounting plate 416 to the mounting profile 415, the impact force Fz experienced by the mounting profile 415 can be dispersed into F1, F2, F3, F4, F5, and F6 through the six connecting ribs between the outer and inner rings. Figure 11 As shown; the impact force Fz on the left mounting support 466 can be dispersed into F1 and F2 by two mutually perpendicular connecting walls, as follows. Figure 12 As shown, this is to improve the impact resistance of the vehicle body structure.

[0125] Optionally, the longitudinal beam is connected to the passenger compartment connecting plate via the outer longitudinal beam support rod 414 and the inner longitudinal beam support rod 418.

[0126] Specifically, the passenger compartment connecting plate can be the front or rear bulkhead of the vehicle body structure. The longitudinal beam outer strut 414, the longitudinal beam inner strut 418, and the longitudinal beam form a Y-shaped frame structure 411Y. The longitudinal beam is connected to the passenger compartment connecting plate through the longitudinal beam outer strut 414 and the longitudinal beam inner strut 418. Specifically, the Y-shaped frame structure 411Y can be connected to the passenger compartment connecting plate of the passenger compartment 20 through a combination of bolts and adhesives via the longitudinal beam outer strut 414 and the longitudinal beam inner strut 418. The combined connection process can ensure the connection strength and reliability of the joint parts in the vehicle body structure, and also helps to improve the torsional stiffness of the vehicle body structure.

[0127] Optionally, it also includes an outer strut connecting plate 417 and an inner strut connecting plate 419;

[0128] The outer strut of the longitudinal beam is connected to the passenger compartment via the outer strut connecting plate, and the inner strut of the longitudinal beam is connected to the passenger compartment connecting plate via the inner strut connecting plate.

[0129] Specifically, both the outer strut 414 and the inner strut 418 of the longitudinal beam can be connected to the longitudinal beam via the connecting casting 412; the outer strut and the inner strut of the longitudinal beam can be connected to the passenger compartment connecting plate of the passenger compartment 20 via the outer strut connecting plate 417 and the inner strut connecting plate 419 respectively to form a combination of bolts and adhesives. The combination connection process can ensure the connection strength and reliability of the joint parts in the vehicle body structure.

[0130] Optionally, see Figure 5 The outer strut connecting plate 417 is provided with two first reinforcing ribs spaced apart in the vehicle width direction, and the longitudinal beam outer strut is provided between the two first reinforcing ribs;

[0131] The inner strut connecting plate 419 is provided with two second reinforcing ribs spaced apart in the vehicle width direction, and the longitudinal beam inner strut is disposed between the two second reinforcing ribs.

[0132] Specifically, in the vehicle width direction, a first connection area is formed between two spaced-apart first reinforcing ribs on the outer strut connecting plate 417. The longitudinal beam outer strut is connected to the first connection area to realize the connection between the longitudinal beam and the passenger compartment through the longitudinal beam outer strut 414. The longitudinal beam outer strut is set between the two first reinforcing ribs, which means that the two first reinforcing ribs can limit the longitudinal beam outer strut, ensuring the accuracy of the installation position of the longitudinal beam outer strut and avoiding the positional deviation of the longitudinal beam outer strut.

[0133] Specifically, in the vehicle width direction, a second connection area is formed between two second reinforcing ribs spaced apart on the inner strut connecting plate 419. The longitudinal beam inner strut is connected to the second connection area to realize the connection between the longitudinal beam and the passenger compartment through the longitudinal beam inner strut. The longitudinal beam inner strut is set between the two second reinforcing ribs, that is, the two second reinforcing ribs can limit the longitudinal beam inner strut and ensure the accuracy of the installation position of the longitudinal beam inner strut.

[0134] Optionally, it also includes a wheel cover 501, which is connected to the longitudinal beam; specifically, the wheel cover includes a left wheel cover, a right wheel cover, and a wheel cover reinforcing beam 502, which are spaced apart on the left and right sides respectively. The two ends of the wheel cover reinforcing beam are connected to the left wheel cover and the right wheel cover respectively to improve the rigidity of the wheel cover.

[0135] Optionally, it also includes a first reinforcing beam 503 and a second reinforcing beam 504, with the two ends of the second reinforcing beam connected to the wheel cover and the longitudinal beam, respectively, thereby improving the rigidity and stability of the wheel cover.

[0136] The first reinforcing beam connects the wheel arch and the rear panel at both ends, respectively. While improving the rigidity of the wheel arch, it also forms a force transmission path together with the longitudinal beam, the first reinforcing beam, the wheel arch, and the second reinforcing beam, which can transmit the force borne by the longitudinal beam to the rear panel through this force transmission path.

[0137] Optionally, it also includes a reinforcing beam assembly 505, which connects the first reinforcing beam and the second reinforcing beam respectively, and the reinforcing beam assembly is X-shaped to improve the stability of the vehicle body structure.

[0138] Furthermore, the reinforcing beam assembly is also connected to the wheel cover to further enhance the rigidity of the wheel cover.

[0139] This application embodiment also provides a vehicle, the vehicle including a subframe 50 and the aforementioned body structure;

[0140] The subframe is connected to the first mounting base 415z and the second mounting base 466z.

[0141] Specifically, in the vehicle body structure, the body structure includes longitudinal beams and longitudinal beam outer struts 414, the longitudinal beam outer struts 414 being connected to the end of the longitudinal beam facing the vehicle passenger compartment 20; and a mounting assembly, the mounting assembly including a first mounting seat 415z and a second mounting seat 466z, the first mounting seat 415z being connected to the longitudinal beam outer struts 414, and the second mounting seat 466z being connected to the side of the longitudinal beam away from the passenger compartment; the first mounting seat 415z and the second mounting seat 466z are used to connect to the subframe. The first mounting seat 415z and the second mounting seat 466z provide mounting points for the subframe, ensuring the installation stability of the subframe 50, improving the structural strength of the body structure, and ensuring the safety of the vehicle's construction.

[0142] 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 body structure, characterized in that, include: The longitudinal beam and the longitudinal beam external strut (414) are connected to the end of the longitudinal beam facing the vehicle passenger compartment (20); The mounting assembly includes a first mounting base (415z) and a second mounting base (466z), wherein the first mounting base (415z) is connected to the outer strut (414) of the longitudinal beam; In the vehicle width direction, the second mounting bracket (466z) is connected to the side of the longitudinal beam away from the passenger compartment; The first mounting bracket (415z) and the second mounting bracket (466z) are used to connect the subframe; The first mounting base (415z) includes a mounting profile (415); In the vehicle height direction, the top of the mounting profile (415) is connected to the bottom of the longitudinal beam outer strut (414); This also includes installing a sealing plate; The mounting profile is provided with a plurality of through holes extending along the vehicle height direction, and the mounting cover plate is provided at the bottom of the mounting profile (415) and covers the through holes.

2. The vehicle body structure according to claim 1, characterized in that, The mounting profile is provided with a first mounting cavity, which is suitable for connection to the subframe.

3. The vehicle body structure according to claim 2, characterized in that, It also includes a mounting component (415a) disposed within the first mounting cavity and connected to the mounting profile, the mounting component being adapted to be connected to the subframe.

4. The vehicle body structure according to claim 1, characterized in that, The top of the mounting profile (415) has an outer flange (415b) and an inner flange (415c) arranged opposite to each other. The longitudinal beam outer support rod (414) is arranged between the outer flange (415b) and the inner flange (415c) and is connected to the outer flange (415b) and the inner flange (415c) respectively.

5. The vehicle body structure according to claim 1, characterized in that, It also includes an inner strut (418) in the longitudinal beam, which is connected to the end of the longitudinal beam facing the vehicle passenger compartment; Furthermore, the end of the outer support rod of the longitudinal beam that is away from the longitudinal beam is spaced apart from the end of the inner support rod of the longitudinal beam that is away from the longitudinal beam.

6. The vehicle body structure according to claim 5, characterized in that, In the vehicle width direction, the end of the outer strut of the longitudinal beam away from the longitudinal beam is spaced apart from the end of the inner strut of the longitudinal beam away from the longitudinal beam.

7. The vehicle body structure according to claim 5, characterized in that, In the vehicle width direction, the outer strut of the longitudinal beam is located outside the inner strut of the longitudinal beam.

8. The vehicle body structure according to claim 1, characterized in that, The length of the longitudinal beam outer strut (414) in the vehicle height direction is greater than the length of the longitudinal beam outer strut (414) in the vehicle width direction.

9. The vehicle body structure according to claim 1, characterized in that, The second mounting base (466z) includes a mounting bracket with a second mounting cavity adapted to be connected to the subframe.

10. The vehicle body structure according to claim 9, characterized in that, It also includes an installation sleeve (467), which is disposed in the second installation cavity and connected to the installation support.

11. The vehicle body structure according to claim 9, characterized in that, The second mounting base (466z) is provided with at least one through hole extending in the front-rear direction of the vehicle.

12. The vehicle body structure according to claim 1, characterized in that, It also includes a frame beam (464), the longitudinal beams including a left longitudinal beam (411) and a right longitudinal beam (411'), the two ends of the frame beam (464) being connected to the left longitudinal beam (411) and the right longitudinal beam (411') respectively; The second mounting base (466z) includes a left mounting support (466) and a right mounting support (466'), and the two ends of the frame beam are respectively connected to the left mounting support and the right mounting support.

13. The vehicle body structure according to claim 12, characterized in that, It also includes a left crossbeam support beam (465) and a right crossbeam support beam (465'), the left crossbeam support beam (465) being obliquely connected between the left longitudinal beam (411) and the frame crossbeam (464), and the right longitudinal beam (411') being obliquely connected between the right longitudinal beam (411') and the frame crossbeam (464).

14. The vehicle body structure according to claim 12, characterized in that, In the vehicle height direction, the frame crossbeam is disposed below the longitudinal beam, and at least part of the second mounting seat is disposed below the frame crossbeam.

15. The vehicle body structure according to claim 14, characterized in that, The projection of the second mounting seat in the vehicle height direction at least partially overlaps with the projection of the frame beam (464) in the vehicle height direction; The projection of the second mounting seat in the vehicle width direction at least partially overlaps with the projection of the frame beam (464) in the vehicle width direction.

16. The vehicle body structure according to claim 15, characterized in that, The projection of the second mounting base in the vehicle height direction at least partially overlaps with the projection of the longitudinal beam in the vehicle height direction; The projection of the second mounting base in the vehicle width direction at least partially overlaps with the projection of the longitudinal beam in the vehicle width direction.

17. The vehicle body structure according to claim 5, characterized in that, The longitudinal beam is connected to the crew compartment connecting plate via the outer longitudinal beam support rod (414) and the inner longitudinal beam support rod (418).

18. The vehicle body structure according to claim 17, characterized in that, It also includes an outer strut connecting plate (417) and an inner strut connecting plate (419); The outer strut of the longitudinal beam is connected to the passenger compartment via the outer strut connecting plate, and the inner strut of the longitudinal beam is connected to the passenger compartment connecting plate via the inner strut connecting plate.

19. A vehicle, characterized in that, Includes a subframe (50) and a vehicle body structure as described in any one of claims 1-18; The subframe is connected to the first mounting base (415z) and the second mounting base (466z).

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