Vehicle body structure and vehicle

Abstract

The embodiment of the invention provides a vehicle body structure and a vehicle, the vehicle body structure comprises a longitudinal beam and a longitudinal beam outer supporting rod, and the longitudinal beam outer supporting rod is connected to the end, facing a vehicle passenger compartment, of the longitudinal beam; the installation assembly comprises a first installation base and a second installation base, the first installation base is connected to the longitudinal beam outer supporting rod, and the second installation base is connected to the side, away from a passenger compartment, of the longitudinal beam; the first mounting base and the second mounting base are used for being connected with an auxiliary frame. The first mounting seat and the second mounting seat provide mounting points for the auxiliary frame, so that the mounting stability of the auxiliary frame is ensured, and the structural strength of the vehicle body structure is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle body structures, and specifically, relates to a vehicle body structure and a vehicle. Background Art

[0002] In the prior art, the shock absorber and spring of the vehicle occupy a large space in the structure, occupying 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] An object of embodiments of the present application is to provide a new technical solution for a vehicle body structure and a vehicle.

[0004] According to a first aspect of an embodiment of the present application, a vehicle body structure is provided, comprising:

[0005] A longitudinal beam and a longitudinal beam outer brace, wherein the longitudinal beam outer brace is connected to an end of the longitudinal beam facing the vehicle passenger compartment;

[0006] A mounting assembly, the mounting assembly comprising a first mounting seat and a second mounting seat, the first mounting seat being connected to the longitudinal beam outer support rod;

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

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

[0009] Optionally, the first mounting seat comprises 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 support rod, and the mounting profile is provided with a first mounting cavity, which is suitable for the sub-frame connection.

[0011] It also includes a mounting member, which is arranged in the first mounting cavity and connected to the mounting profile, and is suitable for being connected to the sub-frame.

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

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

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

[0015] Optionally, it further comprises a longitudinal beam inner brace, wherein the longitudinal beam inner brace is connected to one end of the longitudinal beam facing the vehicle passenger compartment;

[0016] And one end of the longitudinal beam outer support rod away from the longitudinal beam is spaced apart from one end of the longitudinal beam inner support rod away from the longitudinal beam.

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

[0018] Optionally, in the vehicle width direction, the longitudinal beam outer brace is arranged on the outer side of the longitudinal beam inner brace.

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

[0020] Optionally, the second mounting seat includes a mounting support, and a second mounting cavity is provided on the second mounting seat, and the second mounting cavity is suitable for connection to the sub-frame.

[0021] Optionally, a mounting sleeve is further included, wherein the mounting sleeve is disposed in the second mounting cavity and connected to the second mounting seat.

[0022] Optionally, the second mounting seat is provided with at least one through hole extending along the front-rear direction of the vehicle.

[0023] Optionally, a frame crossbeam is further included, the longitudinal beam includes a left longitudinal beam and a right longitudinal beam, and two ends of the frame crossbeam are respectively connected to the left longitudinal beam and the right longitudinal beam;

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

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

[0026] Optionally, in the vehicle height direction, the frame cross beam is arranged on the lower side of the longitudinal beam, and at least part of the second mounting seat is arranged on the lower side of the frame cross beam.

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

[0028] A projection of the second mounting seat in the vehicle width direction at least partially overlaps with a projection of the frame cross member in the vehicle width direction.

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

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

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

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

[0033] The longitudinal beam outer support rod is connected to the passenger compartment through the outer support rod connecting plate, and the longitudinal beam inner support rod is connected to the passenger compartment connecting plate through the inner support rod connecting plate.

[0034] According to a second aspect of an embodiment of the present application, a vehicle is provided, comprising a subframe and the vehicle body structure according to the first aspect;

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

[0036] A technical effect of this application is:

[0037] The embodiment of the present application provides a vehicle body structure, the vehicle body structure includes a longitudinal beam and a longitudinal beam outer support rod, the longitudinal beam outer support rod is obliquely connected to the end of the longitudinal beam facing the vehicle passenger compartment; a mounting assembly, the mounting assembly includes a first mounting seat and a second mounting seat, the first mounting seat is connected to the longitudinal beam outer support rod, and the second mounting seat is connected to the side of the longitudinal beam away from the passenger compartment; the first mounting seat and the second mounting seat are used to connect the subframe. The first mounting seat and the second mounting seat provide mounting points for the subframe, ensure the installation stability of the subframe, and improve the structural strength of the vehicle body structure.

[0038] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0040] Figure 1 A partial schematic diagram of a vehicle body structure provided in an embodiment of the present application Figure 1 ;

[0041] Figure 2 A schematic diagram of a first mounting seat of a vehicle body structure provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of a mounting profile of a vehicle body structure provided in an embodiment of the present application;

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

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

[0045] Figure 6 A schematic diagram of the cooperation between a longitudinal beam outer support rod and a first mounting seat of a vehicle body structure provided in an embodiment of the present application;

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

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

[0048] Fig. 9 An X-direction cross-sectional view of a vehicle body structure provided in an embodiment of the present application;

[0049] Fig.10 A three-dimensional diagram of a vehicle body structure provided in an embodiment of the present application;

[0050] Fig.11 A schematic diagram of the force of a mounting profile of a vehicle body structure provided in an embodiment of the present application;

[0051] Fig.12 A schematic diagram of the force on the left mounting support of a vehicle body structure provided in an embodiment of the present application;

[0052] Fig.13 A partial schematic diagram of a vehicle body structure provided in an embodiment of the present application 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 support rod; 415z, first mounting seat; 415, mounting profile; 415a, mounting part; 415b, outer flange; 415c, inner flange; 416, left mounting cover plate; 416', right mounting cover plate; 417, outer support rod connecting plate; 418, longitudinal beam inner support rod; 419, inner support rod connecting plate; 464, frame cross beam; 465, left cross beam supporting beam; 465', right cross beam supporting beam; 466z, second mounting seat; 466, left mounting support; 466', right mounting support; 467, mounting sleeve; 468, sleeve fixing cover plate; 50, subframe; 501, reinforcement beam group;. DETAILED DESCRIPTION

[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 of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0056] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0057] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0061] Reference Figure 1 , an embodiment of the present application provides a vehicle body structure, the vehicle body structure comprising:

[0062] A longitudinal beam and a longitudinal beam outer brace 414, wherein the longitudinal beam outer brace 414 is connected to one 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 outer brace 414;

[0063] Specifically, the longitudinal beam may be a rear longitudinal beam or a front longitudinal beam; correspondingly, the longitudinal beam outer support rod 414 may be a rear longitudinal beam outer support rod or a front longitudinal beam outer support rod.

[0064] A mounting assembly, the mounting assembly comprising a first mounting seat 415z and a second mounting seat 466z, the first mounting seat 415z being connected to the longitudinal beam outer support rod 414;

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

[0066] The first mounting seat 415z and the second mounting seat 466z are used to connect to the sub-frame.

[0067] Specifically, the vehicle to which the body structure is applied has a length direction, a width direction and a height direction. Specifically, the length direction of the vehicle may be the X direction in the figure, the width direction of the vehicle may be the Y direction in the figure, and the height direction of the vehicle may be the Z direction in the figure.

[0068] The first mounting seat 415z and the second mounting seat 466z may both include aluminum extruded profiles to improve the dimensional accuracy and performance reliability of the first mounting seat 415z and the second mounting seat 466z on the basis of simplifying the structural process of the first mounting seat 415z and the second mounting seat 466z. In addition, the first mounting seat 415z and the second mounting seat 466z provide mounting points for the sub-frame, ensuring stable installation of the sub-frame.

[0069] In addition, the second mounting seat 466z is connected to the longitudinal beam, and the second mounting seat 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 the embodiment of the present application includes a longitudinal beam and a longitudinal beam outer support rod 414, wherein the longitudinal beam outer support rod 414 is connected to one end of the longitudinal beam facing the vehicle passenger compartment 20; a mounting assembly, wherein the mounting assembly includes a first mounting seat 415z and a second mounting seat 466z, wherein the first mounting seat 415z is connected to the longitudinal beam outer support rod 414, and the second mounting seat 466z is 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 the subframe. The first mounting seat 415z and the second mounting seat 466z provide mounting points for the subframe, ensure the installation stability of the subframe, and improve the structural strength of the vehicle body structure.

[0071] Alternatively, see Figure 2 , the first mounting seat 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, and the mounting profile is provided with a first mounting cavity, which is suitable for the sub-frame connection, that is, the sub-frame can be directly installed in the first mounting cavity, thereby simplifying the structure of the sub-frame connection.

[0073] Optionally, a mounting member 415a is further included, wherein the mounting member is disposed in the first mounting cavity and connected to the mounting profile, and the mounting member is suitable for being connected to the sub-frame.

[0074] Specifically, the mounting profile 415 is an aluminum extruded profile structure with a mounting cavity. When the mounting cover plate is connected to the mounting profile 415 through 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, thereby ensuring the installation stability of the subframe while achieving weight reduction of the vehicle body structure.

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

[0076] The mounting profile is provided with a plurality of through holes extending in 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 seat 415z includes a mounting profile 415, a mounting member 415a and a mounting cover plate, the mounting profile 415 is connected to the bottom of the longitudinal beam outer support rod 414, and the mounting cover plate is connected to the mounting profile 415 through the mounting member 415a.

[0078] Specifically, the mounting profile 415 is an aluminum extruded profile structure having a cavity. When the mounting sealing plate is connected to the mounting profile 415 through the mounting member 415a, the cavity inside the mounting profile 415 can be sealed or shielded (the cavity is not sealed) by the mounting sealing plate to prevent external impurities from entering the mounting cavity; and the mounting member 415a can also 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] Alternatively, see Figure 3 The top of the mounting profile 415 has an outer flange 415b and an inner flange 415c that are arranged opposite to each other, and 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.

[0080] Specifically, when the first mounting seat 415z is connected to the bottom of the longitudinal beam outer support rod 414, in order to avoid opening holes on the first mounting seat 415z and the longitudinal beam outer support rod 414 to affect the strength, the longitudinal beam outer support rod 414 can be clamped or bonded 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 clamped between the outer flange 415b and the inner flange 415c, a gap can be formed between the outer flange 415b and the inner flange 415c respectively, and the width range of the gap is 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 on the basis of the longitudinal beam outer support rod 414 being clamped between the outer flange 415b and the inner flange 415c.

[0082] In one embodiment, considering the clamping accuracy and welding quality of the longitudinal beam outer support rod 414, the width of the gap formed between the longitudinal beam outer support rod 414 and the outer flange 415b and the inner flange 415c can be 0.5 mm.

[0083] Alternatively, 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 member 415a is inserted into the inner ring and is threadably engaged with the inner ring.

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

[0086] The mounting profile 415 is formed by an extrusion process, so that the mounting profile 415 has the characteristics of simple process, high dimensional accuracy, low mold cost and high extrusion strength, and can ensure the connection strength to the subframe.

[0087] Alternatively, see Figure 5 , the vehicle body structure further comprises a longitudinal beam inner brace 418, the longitudinal beam inner brace 418 is connected to one end of the longitudinal beam facing the vehicle passenger compartment;

[0088] And one end of the longitudinal beam outer support rod away from the longitudinal beam is spaced apart from one end of the longitudinal beam inner support rod away from the longitudinal beam.

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

[0090] Specifically, the Y-type frame structure 411Y can be the root structure of the longitudinal beam of the rear frame 40, and the longitudinal beam outer support rod 414 and the longitudinal beam inner support rod 418 can be connected to the longitudinal beam through the connecting casting 412; the Y-type frame structure 411Y forms a combination connection of bolts and adhesives with the passenger compartment 20 through the outer support rod connecting plate 417 and the inner support rod connecting plate 419. The combined connection process can ensure the connection strength and reliability of the joint parts in the vehicle body structure, and is also beneficial to the improvement of the torsional stiffness of the vehicle body structure.

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

[0092] Specifically, the ends of the longitudinal beam outer support rod and the longitudinal beam inner support rod away from the longitudinal beam are connected to the front panel or the rear panel of the vehicle, and the front panel or the rear panel of the vehicle is provided with a crossbeam or a cavity extending along the width direction of the vehicle; the ends of the longitudinal beam outer support rod and the longitudinal beam inner support rod away from the longitudinal beam are connected to the crossbeam or the cavity, so that in the width direction of the vehicle, the longitudinal beam outer support rod and the longitudinal beam inner support rod 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 make the force of the longitudinal beam better transmitted to the crossbeam and the cavity.

[0093] Optionally, in the vehicle width direction, the longitudinal beam outer brace is arranged on the outer side of the longitudinal beam inner brace.

[0094] Specifically, the longitudinal beam outer support rod is arranged on the side of the longitudinal beam inner support rod away from the passenger compartment; when the left and right longitudinal beams are closely spaced, the longitudinal beam outer support rod is arranged close to the outer cantilever, which can increase the installation space of the subframe and facilitate the installation and disassembly of the subframe.

[0095] Alternatively, 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 support rod 414 provides a mounting point for the subframe in the vehicle height direction, and when the front mounting point of the subframe deviates from the longitudinal beam in the Z direction, the longitudinal beam outer support rod 414 has a larger cross-section in the vehicle height direction, which can solve the problem that it is difficult to provide a mounting point for the vehicle body and the dynamic stiffness of the mounting point is low; on the other hand, after the longitudinal beam is connected to the passenger compartment 20 through the longitudinal beam outer support rod 414, the higher Y-direction cross-section of the longitudinal beam outer support rod 414 increases the Y-direction rollover resistance of the entire rear frame 40, thereby improving the Y-direction dynamic stiffness of the front mounting point of the subframe on the longitudinal beam outer support rod 414.

[0097] Furthermore, since 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, the force transmission area of ​​the vehicle body structure in the vertical direction can be increased while reducing the weight of the vehicle body structure.

[0098] Specifically, the end of the longitudinal beam outer support rod away from the longitudinal beam and the end of the longitudinal beam inner support rod away from the longitudinal beam are arranged at a left-right interval, and the longitudinal beam outer support rod 414 is longer in the vehicle height direction, thereby forming a larger force transmission area in both the vehicle width direction and the height direction, thereby increasing the force surface formed by the longitudinal beam outer support rod and the longitudinal beam inner support rod.

[0099] Optionally, the second mounting seat 466z includes a mounting support, and a second mounting cavity is provided on the mounting support. The second mounting cavity is suitable for connecting with the sub-frame, that is, the sub-frame can be directly installed in the second mounting cavity, simplifying the structure of the sub-frame connection.

[0100] Optionally, a mounting sleeve 467 is further included, wherein the mounting sleeve 467 is disposed in the second mounting cavity and connected to the mounting support.

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

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

[0103] Specifically, the mounting bracket is an X-direction extruded aluminum alloy profile bracket, and one or more through holes extending along the front-rear direction of the vehicle are provided on the second mounting bracket 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 mounting point strength, durability and dynamic stiffness on the mounting bracket.

[0104] The threaded hole of the rear mounting point of the sub-frame is provided by the mounting sleeve 467, which is conical and passes through the mounting support from bottom to top. The lower end of the mounting sleeve 467 is designed with an end face flange, which is welded and fixed to the mounting support at the edge of the flange surface; a circular sleeve fixing sealing plate 468 is added to the upper end of the mounting sleeve 467, and the inner side of the sleeve fixing sealing plate 468 is welded and fixed to the mounting sleeve 467, and the outer side is welded and fixed to the mounting support.

[0105] Specifically, the mounting sleeve 467 is formed by casting and machining, the tapped thread 467A on the inner diameter of the mounting sleeve 467 matches the mounting bolt at the rear point of the sub-frame, and the thread length of the mounting sleeve 467 should be greater than the thread length of the mounting bolt at the rear point of the sub-frame to ensure the stability of the mounting sleeve 467 on the sub-frame. The feature of the mounting sleeve 467 being larger at the bottom and smaller at the top can avoid abnormal noise caused by the mounting sleeve 467 contacting the internal ribs of the mounting support.

[0106] In addition, since the rear mounting point of the subframe deviates from the longitudinal beam in the Y direction, the subframe forms a cantilever structure. In order to improve the stability of the mounting bracket, the mounting bracket is connected to the longitudinal beam through bolt 466A, and the edges of the mounting bracket and the longitudinal beam contact surface are designed to be connected by arc welding. Through dual fixation in the Z and Y directions, the mounting bracket and the longitudinal beam form an integral structure, so that the longitudinal beam with a higher cross-sectional force can share more impact force from the subframe.

[0107] It is worth noting that the second mounting seat 466z above illustrates a left second mounting seat on the left side of the vehicle body structure, and 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 seat symmetrical to the left second mounting seat. Moreover, based on the symmetry of the vehicle body structure illustrated in the drawings of this application, components that are not distinguished between left and right in the specification but have a left-right symmetrical structure still fall within the scope of protection of this application.

[0108] Alternatively, see Figure 7 The vehicle body structure further includes a frame crossbeam 464, the longitudinal beams include a left longitudinal beam 411 and a right longitudinal beam 411', and 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 both ends of the frame crossbeam are connected to the left mounting support and the right mounting support respectively.

[0110] Specifically, the frame crossbeam 464 is located between the mounting support and longitudinal beam on the left side and the mounting support and longitudinal beam on the right side, and the mounting support and longitudinal beam on the left side are connected in the Y direction by means of bolts 466A and threaded holes 411S1, and the frame crossbeam 464 on the left side is connected to the mounting support and longitudinal beam on the left side in the Z direction by means of bolts 466A and threaded holes 411S2, and at the same time, the frame crossbeam 464 on the right side is connected to the mounting support and longitudinal beam on the right side in the Z direction by bolts, and a sleeve structure 464L is designed at the bolt position of the frame crossbeam 464, and after the bolts pass 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] Alternatively, see Fig. 9 The vehicle body structure further includes a left cross beam support beam 465 and a right cross beam support beam 465'. The left cross beam support beam 465 is obliquely connected between the left longitudinal beam 411 and the frame cross beam 464, and the right longitudinal beam 411' is obliquely connected between the right longitudinal beam 411' and the frame cross beam 464.

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

[0113] Specifically, the left cross beam support beam 465 and the right cross beam support beam 465' are symmetrically arranged, so that the left cross beam support beam 465, the right cross beam support beam 465' and the frame cross beam 464 form a K-shaped structure 464z. The lower parts of the left cross beam support beam 465 and the right cross beam support beam 465' are in contact with the frame cross beam 464, and the connection is enhanced by arc welding at the edge of the contact surface; the upper parts of the left cross beam support beam 465 and the right cross beam support beam 465' are in contact with the inner side surface of the left longitudinal beam 411 and the inner side surface of the right longitudinal beam 411', respectively, and the connection is enhanced by arc welding at the contact position.

[0114] In addition, the K-shaped structure 464z is connected to the mounting bracket and the longitudinal beam at both ends of the frame cross beam 464 by bolts. The K-shaped structure 464z connects and fixes the left longitudinal beam 411, the right longitudinal beam 411', the left cross beam support beam 465 and the right cross beam support beam 465' to form an integral structure. On the one hand, it can further improve the dynamic stiffness of the rear mounting point of the subframe on the body structure; on the other hand, it can improve the stability of the body structure and the torsional stiffness of the whole vehicle.

[0115] Optionally, in the vehicle height direction, the frame cross beam 464 is disposed on the lower side of the longitudinal beam, and at least a portion of the second mounting seat 466z is disposed on the lower side of the frame cross beam.

[0116] Specifically, on the lower side of the longitudinal beam, the left frame beam 464 is fitted with the left mounting support, that is, in the height direction of the vehicle, the longitudinal beam, at least part of the frame beam and at least part of the second mounting support are arranged in sequence from top to bottom, and the longitudinal beam, the frame beam and the second mounting support are connected in the Z direction by locking members, while the right frame beam 464 is connected to the right mounting support and the longitudinal beam in the Z direction by locking members, thereby ensuring the stability of the connection between the frame beam 464, the mounting support 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 crossbeam 464 in the vehicle height direction;

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

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

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

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

[0122] Specifically, the second mounting seat 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 seat cooperates with the longitudinal beam in the height direction and the width direction of the vehicle, so that the second mounting seat 466z forms a semi-enclosed mounting structure for the longitudinal beam to form a protective structure on the bottom surface of the side of the longitudinal beam, thereby improving the overall strength of the vehicle body structure.

[0123] Alternatively, see Figures 10 to 12 The mounting cover plate includes a left mounting cover plate 416 and a right mounting cover plate 416', the mounting support includes a left mounting support 466 and a right mounting support 466', the left mounting cover plate 416 and the right mounting cover 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 cover plate 416, the right mounting cover plate 416', the left mounting support 466 and the right mounting support 466' form a four-point support, so as to form a four-point connection for the subframe.

[0124] like Fig.10 As shown, the vehicle body structure is subjected to four forces F1, F2, F3 and F4 from the chassis, and these forces are transmitted to the vehicle body structure through the left mounting cover plate 416, the right mounting cover plate 416', the left mounting support 466 and the right mounting support 466' at the front and rear mounting points of the subframe. By planning the force transmission path of the mounting points on the vehicle body structure, for example, when the left mounting cover plate 416 transmits force to the mounting profile 415, the impact force Fz received by the mounting profile 415 can be dispersed into F1, F2, F3, F4, F5 and F6 through the six connecting ribs between the outer ring and the inner ring, as shown in FIG. Fig.11 The impact force Fz on the left mounting support 466 can be dispersed into F1 and F2 through two mutually perpendicular connecting walls, such as Fig.12 As shown, the impact resistance of the vehicle body structure is improved.

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

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

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

[0128] The longitudinal beam outer support rod is connected to the passenger compartment through the outer support rod connecting plate, and the longitudinal beam inner support rod is connected to the passenger compartment connecting plate through the inner support rod connecting plate.

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

[0130] Alternatively, see Figure 5 , the outer support rod connecting plate 417 is provided with two first reinforcing ribs at intervals in the vehicle width direction, and the longitudinal beam outer support rod is provided between the two first reinforcing ribs;

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

[0132] Specifically, in the vehicle width direction, a first connection area is formed between two first reinforcement ribs spaced apart on the outer support rod connecting plate 417, and the longitudinal beam outer support rod is connected to the first connection area to realize the connection between the longitudinal beam and the passenger compartment through the longitudinal beam outer support rod 414, and the longitudinal beam outer support rod is arranged between the two first reinforcement ribs, that is, the longitudinal beam outer support rod can be limited by the two first reinforcement ribs to ensure the accuracy of the installation position of the longitudinal beam outer support rod and avoid the position deviation of the longitudinal beam outer support rod.

[0133] Specifically, in the width direction of the vehicle, a second connection area is formed between two second reinforcement ribs spaced apart on the inner support rod connecting plate 419, and the longitudinal beam inner support rod is connected to the second connection area to realize the connection between the longitudinal beam and the passenger compartment through the longitudinal beam inner support rod, and the longitudinal beam inner support rod is arranged between the two second reinforcement ribs, that is, the longitudinal beam inner support rod can be limited by the two second reinforcement ribs to ensure the accuracy of the installation position of the longitudinal beam inner support rod.

[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 reinforcement beam 502 that are spaced apart from each other, and the two ends of the wheel cover reinforcement beam are respectively connected to the left wheel cover and the right wheel cover to improve the stiffness of the wheel cover.

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

[0136] Among them, the two ends of the first reinforcing beam are respectively connected to the wheel arch and the rear panel. While improving the stiffness of the wheel arch, a force transmission path is formed through 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, a reinforcing beam group 505 is further included, which connects the first reinforcing beam and the second reinforcing beam respectively, and is X-shaped to improve the stability of the vehicle body structure.

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

[0139] The embodiment of the present application also provides a modified vehicle, the vehicle comprising a subframe 50 and the vehicle body structure;

[0140] The sub-frame is connected to the first mounting seat 415z and the second mounting seat 466z.

[0141] Specifically, in the vehicle body structure, the vehicle body structure includes a longitudinal beam and a longitudinal beam outer support rod 414, wherein the longitudinal beam outer support rod 414 is connected to one end of the longitudinal beam facing the vehicle passenger compartment 20; a mounting assembly, wherein the mounting assembly includes a first mounting seat 415z and a second mounting seat 466z, wherein the first mounting seat 415z is connected to the longitudinal beam outer support rod 414, and the second mounting seat 466z is 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 the subframe. The first mounting seat 415z and the second mounting seat 466z provide mounting points for the subframe, ensure the installation stability of the subframe 50, improve the structural strength of the vehicle body structure, and ensure the safety of the vehicle.

[0142] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A vehicle body structure, characterized in that: include: A longitudinal beam and a longitudinal beam outer brace (414), wherein the longitudinal beam outer brace (414) is connected to one end of the longitudinal beam facing the vehicle passenger compartment (20); A mounting assembly, the mounting assembly comprising a first mounting seat (415z) and a second mounting seat (466z), the first mounting seat (415z) being connected to the longitudinal beam outer support rod (414); In the vehicle width direction, the second mounting seat (466z) is connected to a 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 the sub-frame.

2. The vehicle body structure according to claim 1, characterized in that: The first mounting seat (415z) comprises 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 support rod (414), and the mounting profile is provided with a first mounting cavity, which is suitable for the sub-frame connection.

3. The vehicle body structure according to claim 2, characterized in that: It also includes a mounting member (415a), which is arranged in the first mounting cavity and connected to the mounting profile, and is suitable for being connected to the sub-frame.

4. The vehicle body structure according to claim 2, characterized in that: Also includes installing a cover plate; The mounting profile is provided with a plurality of through holes extending in the vehicle height direction, and the mounting cover plate is arranged at the bottom of the mounting profile (415) and covers the through holes.

5. The vehicle body structure according to claim 2, characterized in that: The top of the installation profile (415) has an outer flange (415b) and an inner flange (415c) arranged opposite to each other, and the longitudinal beam outer support rod (414) is arranged between the outer flange (415b) and the inner flange (415c), and is respectively connected to the outer flange (415b) and the inner flange (415c).

6. The vehicle body structure according to claim 1, characterized in that: Also included is a longitudinal beam inner brace (418), wherein the longitudinal beam inner brace (418) is connected to an end of the longitudinal beam facing the vehicle passenger compartment; And one end of the longitudinal beam outer support rod away from the longitudinal beam is spaced apart from one end of the longitudinal beam inner support rod away from the longitudinal beam.

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

8. The vehicle body structure according to claim 6, characterized in that: The side member outer brace is disposed on an outer side of the side member inner brace in a vehicle width direction.

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

10. The vehicle body structure according to claim 1, characterized in that: The second mounting seat (466z) comprises a mounting support, on which a second mounting cavity is arranged, and the second mounting cavity is suitable for being connected to the sub-frame.

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

12. The vehicle body structure according to claim 10, characterized in that: The second mounting seat (466z) is provided with at least one through hole extending along the front-rear direction of the vehicle.

13. The vehicle body structure according to claim 2, characterized in that: It also includes a frame crossbeam (464), wherein the longitudinal beams include a left longitudinal beam (411) and a right longitudinal beam (411'), and two ends of the frame crossbeam (464) are respectively connected to the left longitudinal beam (411) and the right longitudinal beam (411'); The second mounting seat (466z) includes a left mounting support (466) and a right mounting support (466'), and two ends of the frame crossbeam are respectively connected to the left mounting support and the right mounting support.

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

15. The vehicle body structure according to claim 13, characterized in that: In the vehicle height direction, the frame cross beam is disposed on the lower side of the longitudinal beam, and at least a portion of the second mounting seat is disposed on the lower side of the frame cross beam.

16. The vehicle body structure according to claim 15, 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 crossbeam (464) in the vehicle height direction; A projection of the second mounting seat in the vehicle width direction at least partially overlaps with a projection of the frame cross member (464) in the vehicle width direction.

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

18. The vehicle body structure according to claim 6, characterized in that: The longitudinal beam is connected to the passenger compartment connecting plate via the longitudinal beam outer support rod (414) and the longitudinal beam inner support rod (418).

19. The vehicle body structure according to claim 18, characterized in that: It also includes an outer support rod connecting plate (417) and an inner support rod connecting plate (419); The longitudinal beam outer support rod is connected to the passenger compartment through the outer support rod connecting plate, and the longitudinal beam inner support rod is connected to the passenger compartment connecting plate through the inner support rod connecting plate.

20. A vehicle, characterized in that: It comprises a subframe (50) and a vehicle body structure as claimed in any one of claims 1 to 19; The sub-frame is connected to the first mounting seat (415z) and the second mounting seat (466z).

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