Connecting structure and vehicle

Abstract

The utility model relates to the technical field of vehicles, aims to solve the problem of how to improve the crashworthiness of vehicles, and provides a connecting structure and a vehicle. The connecting structure is used for being connected between a vehicle body longitudinal beam and an auxiliary frame, and the connecting structure comprises a longitudinal beam connecting assembly and a mounting sleeve. The side, close to the automobile body longitudinal beam, of the longitudinal beam connecting assembly is used for being connected with the automobile body longitudinal beam, the side, close to the auxiliary frame, of the longitudinal beam connecting assembly is provided with a box-shaped structure, and a via hole is formed in the side, facing the auxiliary frame, of the box-shaped structure. The installation sleeve is arranged in the box-shaped structure, corresponds to the via hole and is used for being connected to the auxiliary frame. The connecting structure has the beneficial effects that the connecting structure is connected between the vehicle body longitudinal beam and the auxiliary frame, and the side, close to the auxiliary frame, of the longitudinal beam connecting assembly is provided with the box-shaped structure, so that the connecting strength of the connecting position of the vehicle body longitudinal beam and the auxiliary frame is improved, the force transmission and deformation stability during vehicle collision is improved, and then the structural collision resistance of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and more particularly, to a connection structure and a vehicle. Background Art

[0002] In the related art, a vehicle is provided. A subframe is provided below the vehicle body longitudinal beam. However, the crashworthiness of the vehicle in the related art is poor. Summary of the Utility Model

[0003] This application provides a connection structure and a vehicle to solve the problem of how to improve the crashworthiness of the vehicle.

[0004] According to one aspect of this application, a connection structure is provided. The connection structure is used to connect between the vehicle body longitudinal beam and the subframe. The connection structure includes a longitudinal beam connection assembly and a mounting sleeve. The side of the longitudinal beam connection assembly close to the vehicle body longitudinal beam is used to connect with the vehicle body longitudinal beam. The side of the longitudinal beam connection assembly close to the subframe has a box-shaped structure. A through hole is provided on the side of the box-shaped structure facing the subframe. The mounting sleeve is arranged in the box-shaped structure and corresponds to the through hole for connecting to the subframe.

[0005] The above connection structure is connected between the vehicle body longitudinal beam and the subframe. And because the side of the longitudinal beam connection assembly close to the subframe has a box-shaped structure, the connection strength at the joint of the vehicle body longitudinal beam and the subframe is improved, thereby improving the force transmission and deformation stability during vehicle collision, and further improving the structural crashworthiness of the vehicle.

[0006] In one embodiment, the vehicle body longitudinal beam includes an end cover and a longitudinal beam body. The end cover includes an end plate and a frame body. The frame body is connected to the end plate. The longitudinal beam body is connected to the frame body and is located on one side of the frame body. The longitudinal beam connection assembly is sleeved outside the frame body and is connected at the intersection of the end plate and the longitudinal beam body.

[0007] In one embodiment, the frame body includes a first part and a second part distributed along the Y-axis direction of the vehicle. The longitudinal beam body is sleeved outside the first part. The side of the longitudinal beam connection assembly close to the longitudinal beam body is sleeved outside the second part and is connected between the end plate and the longitudinal beam body. The box-shaped structure is connected between the side of the second part close to the subframe and the end plate.

[0008] In one embodiment, the longitudinal beam connection assembly includes a first bracket and a second bracket. The first bracket includes a first side plate and a first bottom plate. The first side plate is sleeved outside the second part on the side close to the longitudinal beam body, and is connected between the end plate and the longitudinal beam body. The first bottom plate is bent and connected to the end of the first side plate on the side close to the subframe, and extends towards the longitudinal beam body in the Y-axis direction of the vehicle. One end of the first bottom plate close to the end cover in the X-axis direction of the vehicle is connected to the end plate, and a through hole is provided on the first bottom plate. The second bracket includes a second side plate and a first top plate. The second side plate is arranged opposite to the first side plate on the side close to the subframe in the Y-axis direction of the vehicle. One end of the second side plate close to the subframe is connected to one end of the first bottom plate far from the first side plate. One end of the second side plate close to the end cover in the X-axis direction of the vehicle is connected to the end plate. The other end of the second side plate is connected to one end of the first side plate far from the end plate. The first top plate is bent and connected to one end of the second side plate close to the longitudinal beam body, and extends towards the first side plate in the Y-axis direction of the vehicle and is connected to the first side plate. One end of the first top plate close to the end cover in the X-axis direction of the vehicle is connected to the end plate. The first side plate on the side close to the subframe, the first bottom plate, the first top plate and the second side plate form a box-shaped structure.

[0009] In one embodiment, the first side plate includes a first plate and a second plate, and the first plate and the second plate are distributed in the X-axis direction of the vehicle. One end of the first plate far from the second plate in the X-axis direction of the vehicle is connected to the end plate, and the side of the first plate close to the longitudinal beam body is sleeved outside the second part. The second plate is inclined relative to the first plate and extends towards the side close to the longitudinal beam body. One end of the second plate far from the first plate in the X-axis direction of the vehicle is respectively connected to the longitudinal beam body and the second side plate.

[0010] In one embodiment, the first bracket has a stepped surface; and / or

[0011] Reinforcing ribs are provided on the second bracket.

[0012] In one embodiment, a connecting edge is provided on the side of the longitudinal beam body close to the subframe, and the connecting edge extends towards the subframe. One side of the box-shaped structure close to the first part in the Y-axis direction of the vehicle is connected to the connecting edge.

[0013] In one embodiment, the longitudinal beam connection assembly further includes a third bracket, and the third bracket is arranged inside the box-shaped structure and is respectively connected to the outer side of the mounting sleeve, the inner wall of the box-shaped structure and the end plate.

[0014] In one embodiment, the third bracket includes a third side plate, a second top plate, and a second bottom plate. The third side plate is connected to the outer peripheral side of the mounting sleeve and is connected between the inner walls on both sides of the box-shaped structure along the Y-axis direction of the vehicle. The second top plate is bent and connected to one end of the third side plate close to the frame body. The second top plate extends along the X-axis direction of the vehicle. One end of the second top plate away from the third side plate is connected to the end plate. The second top plate is connected between the inner walls on both sides of the box-shaped structure along the Y-axis direction of the vehicle. The second bottom plate is bent and connected to one end of the third side plate close to the subframe. The second bottom plate is connected to the inner wall of the box-shaped structure on the side close to the subframe.

[0015] According to another aspect of the present application, there is provided a vehicle, including:

[0016] A vehicle longitudinal beam;

[0017] A subframe;

[0018] The connection structure as described in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a top view of the vehicle 1 in an embodiment of the present application.

[0021] Figure 2 It is Figure 1 A schematic assembly state diagram of the connection structure, the vehicle longitudinal beam, and the subframe in the shown embodiment.

[0022] Figure 3 It is Figure 1 A partial structural schematic diagram of the connection structure, the vehicle longitudinal beam, and the subframe in the shown embodiment.

[0023] Figure 4 It is Figure 1 A sectional view of the connection structure, the vehicle longitudinal beam, and the subframe in a cross-section perpendicular to the X-axis direction of the vehicle in the shown embodiment.

[0024] Figure 5 It is Figure 1 A perspective view of the connection structure in the shown embodiment.

[0025] Figure 6 It is Figure 1 An exploded view of the connection structure in the shown embodiment.

[0026] Figure 7For Figure 1 Partial structural schematic diagram of the connection structure and the vehicle longitudinal beam in the embodiment shown.

[0027] Figure 8 For Figure 1 Partial structural schematic diagram of the second bracket, the mounting sleeve and the vehicle longitudinal beam in the embodiment shown from another perspective.

[0028] Figure 9 For Figure 1 Partial structural schematic diagram of the connection structure, the vehicle longitudinal beam and the subframe in the embodiment shown from another perspective.

[0029] Figure 10 For Figure 1 Schematic diagram of the assembled state of the third bracket, the mounting sleeve and the first bracket in the embodiment shown.

[0030] Figure 11 For Figure 1 Schematic diagram of the assembled state of the third bracket and the mounting sleeve in the embodiment shown.

[0031] Figure 12 For Figure 1 Schematic diagram of the structure of the third bracket in the embodiment shown.

[0032] Description of main element symbols:

[0033] Vehicle 1

[0034] Connection structure 100

[0035] Longitudinal beam connection assembly 10

[0036] Box-shaped structure 10a

[0037] First bracket 11

[0038] First side plate 111

[0039] First plate 1111

[0040] Second plate 1112

[0041] First bottom plate 112

[0042] Through hole 112a

[0043] Second bracket 12

[0044] Second side plate 121

[0045] First top plate 122

[0046] First flanging 1221

[0047] Reinforcing rib 123

[0048] The third bracket 13

[0049] The third side plate 131

[0050] The second top plate 132

[0051] The second bottom plate 133

[0052] The mounting sleeve 20

[0053] The vehicle body longitudinal beam 200

[0054] The end cap 210

[0055] The end plate 211

[0056] The frame body 212

[0057] The first part 2121

[0058] The second part 2122

[0059] The longitudinal beam body 220

[0060] The connecting edge 221

[0061] The subframe 300

[0062] The subframe longitudinal beam 301

[0063] The subframe anti-collision beam 302

[0064] The first cross beam 303

[0065] The second cross beam 304

[0066] The third cross beam 305

[0067] The front anti-collision beam 400 Specific embodiments

[0068] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0069] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be a central element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0071] Some embodiments of this application will be described in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0072] Embodiment

[0073] Figure 1 is a top view of vehicle 1 in an embodiment of this application; Figure 2 is Figure 1 a schematic diagram of the assembled state of the connection structure 100, the vehicle longitudinal beam 200 and the subframe 300 in the shown embodiment; Figure 3 is Figure 1 a partial structural schematic diagram of the connection structure 100, the vehicle longitudinal beam 200 and the subframe 300 in the shown embodiment.

[0074] Referring to Figure 1 and Figure 2 , this embodiment provides a vehicle 1, including a vehicle longitudinal beam 200, a subframe 300 and a connection structure 100.

[0075] The subframe 300 and the vehicle longitudinal beam 200 are important structures for collision force transmission and energy absorption and play an important role when the vehicle 1 collides. By connecting the connection structure 100 between the vehicle longitudinal beam 200 and the subframe 300, when the vehicle 1 collides, the collision energy can be more effectively transmitted and absorbed, so as to improve the force transmission and deformation stability of the vehicle 1, and further improve the crashworthiness of the vehicle 1.

[0076] The subframe 300 includes subframe longitudinal beams 301. The vehicle longitudinal beam 200 and the subframe longitudinal beams 301 are spaced apart from each other in the Z-axis direction of the vehicle 1 (i.e., the height direction of the vehicle 1). The connection structure 100 is connected between the subframe longitudinal beams 301 and the vehicle longitudinal beam 200. The subframe 300 further includes a subframe anti-collision beam 302. The subframe anti-collision beam 302 is connected to one end of the subframe longitudinal beam 301 close to the vehicle head in the X-axis direction of the vehicle 1 (i.e., the length direction of the vehicle 1). The vehicle 1 further includes a front anti-collision beam 400. The front anti-collision beam 400 is connected to one end of the vehicle longitudinal beam 200 close to the vehicle head in the X-axis direction of the vehicle 1.

[0077] When a frontal collision occurs in vehicle 1, the collision force can be transmitted through the upper force transmission path, that is, from the front anti-collision beam 400 to the side away from the vehicle head to the vehicle longitudinal beam 200. The collision force can also be transmitted through the lower force transmission path, that is, from the subframe anti-collision beam 302 to the side away from the vehicle head to the subframe longitudinal beam 301. By providing the connection structure 100, it is ensured that the collision force can be transmitted along the upper and lower force transmission paths respectively, and the swing of the vehicle longitudinal beam 200 in the X-axis direction or Z-axis direction of vehicle 1 is reduced. Therefore, the force transmission stability of vehicle 1 during a collision is improved. And because the rear part of the vehicle longitudinal beam 200 can be bent after bearing a large amount of collision energy, so as to absorb the collision energy through the deformation of the vehicle longitudinal beam 200. Therefore, through the connection structure 100, the collision force is more effectively transmitted to the rear part of the vehicle longitudinal beam 200, thereby improving the energy absorption effect of the vehicle longitudinal beam 200. Among them, the rear part of the vehicle longitudinal beam 200 refers to the part of the vehicle longitudinal beam 200 away from the vehicle head along the X-axis direction of vehicle 1.

[0078] In some embodiments, as Figure 2 shown, the subframe 300 further includes a subframe longitudinal beam 301 and a first cross beam 303. The first cross beam 303 is connected to one end of the subframe longitudinal beam 301 close to the vehicle head along the X-axis direction of vehicle 1. The connection structure 100 is arranged close to the first cross beam 303 to improve the lateral force transmission effect when a offset collision occurs in vehicle 1. Lateral force transmission means that in the lower force transmission path, the collision force is transmitted from the subframe anti-collision beam 302 to the first cross beam 303. Therefore, when an offset collision occurs in vehicle 1, the subframe anti-collision beam 302 transmits the collision force to the first cross beam 303 and the subframe longitudinal beam 301 respectively, and through the connection structure 100, the force transmission and deformation stability during a collision are improved.

[0079] In some embodiments, as Figure 2 shown, the subframe 300 further includes a second cross beam 304 and a third cross beam 305. The second cross beam 304 is arranged between the first cross beam 303 and the third cross beam 305 at intervals along the X-axis direction of vehicle 1. Along the Z-axis direction of vehicle 1 (i.e., the height direction of vehicle 1), the distances between the first cross beam 303, the second cross beam 304 and the third cross beam 305 and the vehicle bottom gradually decrease, so as to utilize the position differences of the first cross beam 303, the second cross beam 304 and the third cross beam 305 in the Z-axis direction of vehicle 1 to play a multiple blocking role on obstacles at different heights, thereby reducing the scraping of the battery pack of vehicle 1 and reducing the risk caused by vehicle 1 scraping the bottom.

[0080] Figure 4 is Figure 1 a sectional view of the connection structure 100, the vehicle longitudinal beam 200 and the subframe 300 in a cross-section perpendicular to the X-axis direction of vehicle 1 in the shown embodiment; Figure 5 is Figure 1 a three-dimensional view of the connection structure 100 in the shown embodiment;Figure 6 For Figure 1 the exploded view of the connection structure 100 in the illustrated embodiment.

[0081] Refer to Figures 4 to 6 , in this embodiment, a connection structure 100 is provided. The connection structure 100 includes a longitudinal beam connection assembly 10 and a mounting sleeve 20. The side of the longitudinal beam connection assembly 10 close to the vehicle body longitudinal beam 200 is used to connect with the vehicle body longitudinal beam 200. The side of the longitudinal beam connection assembly 10 close to the subframe 300 has a box-shaped structure 10a, and a through hole 112a is provided on the side of the box-shaped structure 10a facing the subframe 300. The mounting sleeve 20 is arranged in the box-shaped structure 10a and corresponds to the through hole 112a for connecting to the subframe 300.

[0082] The above connection structure 100 is connected between the vehicle body longitudinal beam 200 and the subframe 300. And because the side of the longitudinal beam connection assembly 10 close to the subframe 300 has a box-shaped structure 10a, the connection strength at the joint of the vehicle body longitudinal beam 200 and the subframe 300 is improved, thereby improving the force transmission stability of the collision force when the vehicle 1 collides, that is, reducing the swing of the vehicle body longitudinal beam 200 in the X-axis direction and Z-axis direction of the vehicle 1, and ensuring that the collision force is stably transmitted to the rear of the subframe 300 and the rear of the vehicle body longitudinal beam 200 respectively. And by improving the connection strength at the joint of the vehicle body longitudinal beam 200 and the subframe 300, the deformation of this joint is also smaller when the vehicle 1 collides, thereby improving the deformation stability of this joint during the collision. Therefore, the connection structure 100 improves the force transmission and deformation stability when the vehicle 1 collides, and further improves the structural crashworthiness of the vehicle 1.

[0083] Optionally, the subframe 300 is fixed relative to the mounting sleeve 20 by a fastener (not shown in the figure) passing through the through hole 112a and extending into the mounting sleeve 20.

[0084] Figure 7 For Figure 1 the partial structural schematic diagram of the connection structure 100 and the vehicle body longitudinal beam 200 in the illustrated embodiment; Figure 8 For Figure 1 the partial structural schematic diagram of the second bracket 12, the mounting sleeve 20 and the vehicle body longitudinal beam 200 in another perspective in the illustrated embodiment.

[0085] In some embodiments, such as Figure 7 and Figure 8As shown, the vehicle longitudinal beam 200 includes an end cover 210 and a longitudinal beam body 220. The end cover 210 includes an end plate 211 and a frame body 212, and the frame body 212 is connected to the end plate 211. The longitudinal beam body 220 is connected to the frame body 212 and is located on one side of the frame body 212. The longitudinal beam connection assembly 10 is sleeved outside the frame body 212 and is connected to the intersection of the end plate 211 and the longitudinal beam body 220, so as to improve the connection strength between the longitudinal beam connection assembly 10 and the vehicle longitudinal beam 200, and improve the force transmission stability from the end cover 210 to the longitudinal beam body 220 when the vehicle 1 collides, as well as the deformation stability at the position of the connection structure 100.

[0086] Figure 9 As Figure 1 A partial structural schematic diagram of the connection structure 100, the vehicle longitudinal beam 200, and the subframe 300 in the shown embodiment from another perspective.

[0087] In some embodiments, in combination with Figures 7 to 9 As shown, the frame body 212 includes a first part 2121 and a second part 2122 distributed along the Y-axis direction of the vehicle 1. The longitudinal beam body 220 is sleeved outside the first part 2121. The longitudinal beam connection assembly 10 is sleeved outside the second part 2122 near the longitudinal beam body 220 and is connected between the end plate 211 and the longitudinal beam body 220. The box-shaped structure 10a is connected between the second part 2122 near the subframe 300 and the end plate 211. In this way, both sides of the longitudinal beam connection assembly 10 are connected to the end plate 211 and the longitudinal beam body 220 respectively, and both sides of the box-shaped structure 10a are connected to the end plate 211 and the frame body 212 respectively, so as to further improve the connection strength between the longitudinal beam connection assembly 10 and the vehicle longitudinal beam 200.

[0088] In some embodiments, in combination with Figures 6 to 8 As shown, the longitudinal beam connection assembly 10 includes a first bracket 11 and a second bracket 12. The first bracket 11 includes a first side plate 111 and a first bottom plate 112. The first side plate 111 is sleeved outside the second part 2122 near the longitudinal beam body 220 and is connected between the end plate 211 and the longitudinal beam body 220. The first bottom plate 112 is bent and connected to the end of the first side plate 111 near the subframe 300 (see Figure 4 ) on one side and extends towards the longitudinal beam body 220 along the Y-axis direction of the vehicle 1. One end of the first bottom plate 112 close to the end cover 210 along the X-axis direction of the vehicle 1 is connected to the end plate 211, and the through hole 112a is provided on the first bottom plate 112.

[0089] The second bracket 12 includes a second side plate 121 and a first top plate 122. The second side plate 121 is disposed opposite to the first side plate 111 along the Y-axis direction of the vehicle 1 on the side close to the subframe 300, and one end of the second side plate 121 close to the subframe 300 is connected to one end of the first bottom plate 112 away from the first side plate 111. As Figure 9 shown, one end of the second side plate 121 close to the end cover 210 along the X-axis direction of the vehicle 1 is connected to the end plate 211, and the other end of the second side plate 121 is connected to one end of the first side plate 111 away from the end plate 211. The first top plate 122 is bent and connected to one end of the second side plate 121 close to the longitudinal beam body 220. The first top plate 122 extends towards the first side plate 111 along the Y-axis direction of the vehicle 1 and is connected to the first side plate 111. One end of the first top plate 122 close to the end cover 210 along the X-axis direction of the vehicle 1 is connected to the end plate 211. The side of the first side plate 111 close to the subframe 300, the first bottom plate 112, the first top plate 122, and the second side plate 121 form the box-shaped structure 10a.

[0090] In this way, the first top plate 122 of the second bracket 12 forms a surface contact with the frame body 212, improving the connection stability between the second bracket 12 and the frame body 212. The first side plate 111, the first bottom plate 112, the second side plate 121, and the first top plate 122 are respectively connected to the end plate 211, improving the connection strength between the longitudinal beam connection assembly 10 and the end plate 211. The first top plate 122 is connected to the first side plate 111, and the second side plate 121 is respectively connected to the first side plate 111 and the first bottom plate 112, improving the connection strength between the first bracket 11 and the second bracket 12.

[0091] Optionally, the first bracket 11 and the second bracket 12 are respectively provided with a plurality of flanges. The connection between the first bracket 11 and the second bracket 12 is connected by flange welding, and the first bracket 11 and the second bracket 12 are respectively welded to the vehicle body longitudinal beam 200 through the flanges.

[0092] In some embodiments, as Figure 8 shown, a first flange 1221 is provided on the side of the first top plate 122 close to the vehicle body longitudinal beam 200. The first flange 1221 extends towards the frame body 212 along the Z-axis direction of the vehicle 1. Combining Figure 6 and Figure 7 shown, the first flange 1221 is located between the first side plate 111 and the frame body 212 and is respectively connected to the first side plate 111 and the frame body 212 to further improve the connection strength between the first bracket 11 and the second bracket 12 and the frame body 212.

[0093] In some embodiments, the first side plate 111 and the frame 212 are also connected by fasteners to further improve the connection stability between the first side plate 111 and the frame 212.

[0094] In some embodiments, as Figures 5 to 7 shown, the first side plate 111 includes a first plate 1111 and a second plate 1112, and the first plate 1111 and the second plate 1112 are distributed along the X-axis direction of the vehicle 1. One end of the first plate 1111 away from the second plate 1112 along the X-axis direction of the vehicle 1 is connected to the end plate 211, and one side of the first plate 1111 close to the longitudinal beam body 220 is sleeved outside the second part 2122. The second plate 1112 is inclined relative to the first plate 1111 and extends toward the side close to the longitudinal beam body 220. One end of the second plate 1112 away from the first plate 1111 along the X-axis direction of the vehicle 1 is respectively connected to the longitudinal beam body 220 and the second side plate 121. In this way, a space for avoiding the second part 2122 is formed between the upper parts of the first plate 1111 and the second plate 1112, and the lower part of the first plate 1111 forms a side wall of the box-shaped structure 10a opposite to the second side plate 121, and the lower part of the second plate 1112 forms a side wall of the box-shaped structure 10a opposite to the end plate 211.

[0095] In some embodiments, as Figure 6 shown, the first bracket 11 has a stepped surface to improve the structural strength of the first bracket 11, thereby further improving the connection strength at the joint of the vehicle body longitudinal beam 200 and the subframe 300. Optionally, as Figure 7 shown, the first plate 1111 and the second plate 1112 respectively have a plurality of stepped surfaces. The plurality of stepped surfaces of the first plate 1111 are distributed along the Z-axis direction of the vehicle 1, and the plurality of stepped surfaces of the second plate 1112 are distributed along the Z-axis direction of the vehicle 1.

[0096] In some embodiments, as Figure 5 shown, the second bracket 12 is provided with a reinforcing rib 123 to improve the structural strength of the second bracket 12.

[0097] In some embodiments, as Figure 9 shown, a connecting edge 221 is provided on one side of the longitudinal beam body 220 close to the subframe 300. The connecting edge 221 extends toward the subframe 300. One side of the box-shaped structure 10a close to the first part 2121 along the Y-axis direction of the vehicle 1 is connected to the connecting edge 221 to improve the connection strength between the box-shaped structure 10a and the longitudinal beam body 220. Optionally, the second side plate 121 is connected to the connecting edge 221.

[0098] In some embodiments, as Figure 8As shown, the longitudinal beam connection assembly 10 further includes a third bracket 13. The third bracket 13 is disposed within the box-shaped structure 10a and is respectively connected to the outer side of the mounting sleeve 20, the inner wall of the box-shaped structure 10a, and the end plate 211 to improve the structural strength of the third bracket 13, and thus improve the structural strength of the box-shaped structure 10a.

[0099] Figure 10 For Figure 1 the schematic diagram of the assembled state of the third bracket 13, the mounting sleeve 20, and the first bracket 11 in the embodiment shown; Figure 11 For Figure 1 the schematic diagram of the assembled state of the third bracket 13 and the mounting sleeve 20 in the embodiment shown; Figure 12 For Figure 1 the schematic diagram of the structure of the third bracket 13 in the embodiment shown.

[0100] In some embodiments, as Figures 10 to 12 shown, the third bracket 13 includes a third side plate 131, a second top plate 132, and a second bottom plate 133. The third side plate 131 is connected to the outer peripheral side of the mounting sleeve 20 and is connected between the inner walls on both sides of the box-shaped structure 10a along the Y-axis direction of the vehicle 1. The second top plate 132 is bent and connected to one end of the third side plate 131 close to the frame body 212 (see Figure 8 ), the second top plate 132 extends along the X-axis direction of the vehicle 1, and one end of the second top plate 132 away from the third side plate 131 is connected to the end plate 211. The second top plate 132 is connected between the inner walls on both sides of the box-shaped structure 10a along the Y-axis direction of the vehicle 1. The second bottom plate 133 is bent and connected to one end of the third side plate 131 close to the subframe 300 (see Figure 9 ), and the second bottom plate 133 is connected to the inner wall of the box-shaped structure 10a on the side close to the subframe 300. In this way, the second bottom plate 133 forms a surface contact with the bottom wall of the box-shaped structure 10a to improve the connection stability between the third bracket 13 and the box-shaped structure 10a. And the third bracket 13 is connected to the end plate 211 through the second top plate 132 to improve the connection strength between the third bracket 13 and the end plate 211. Both the third side plate 131 and the second top plate 132 are connected to both sides of the box-shaped structure 10a along the Y-axis direction of the vehicle 1 to improve the connection strength between the third bracket 13 and the box-shaped structure 10a.

[0101] Optionally, both sides of the third side plate 131 along the Y-axis direction of the vehicle 1 are respectively welded to the first side plate 111 and the second side plate 121, both sides of the second top plate 132 along the Y-axis direction of the vehicle 1 are respectively welded to the first side plate 111 and the second side plate 121, and the second bottom plate 133 is welded to the first bottom plate 112 to respectively improve the connection strength between the third bracket 13 and the first bracket 11 and the second bracket 12, thereby improving the stiffness of the longitudinal beam connection structure 100.

[0102] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A connection structure, characterized in that: The connecting structure is used to connect between the vehicle body longitudinal beam and the subframe, and the connecting structure includes: A longitudinal beam connection assembly, wherein the longitudinal beam connection assembly is used to connect with the longitudinal beam of the vehicle body on a side close to the longitudinal beam of the vehicle body, and the longitudinal beam connection assembly has a box-shaped structure on a side close to the subframe, and a through hole is provided on a side of the box-shaped structure facing the subframe; and The mounting sleeve is arranged in the box-shaped structure and corresponds to the through hole, and is used for connecting to the sub-frame.

2. The connection structure according to claim 1, characterized in that: The vehicle body longitudinal beam comprises an end cover and a longitudinal beam body, the end cover comprises an end plate and a frame, and the frame is connected to the end plate; The longitudinal beam body is connected to the frame body and is located on one side of the frame body; The longitudinal beam connection assembly is sleeved outside the frame and connected to the intersection of the end plate and the longitudinal beam body.

3. The connection structure according to claim 2, characterized in that: The frame includes a first part and a second part distributed along the Y-axis direction of the vehicle, and the longitudinal beam body is sleeved outside the first part; The longitudinal beam connecting assembly is sleeved outside the second part at a side close to the longitudinal beam body and connected between the end plate and the longitudinal beam body. The box-like structure is connected between the second part at a side close to the subframe and the end plate.

4. The connection structure according to claim 3, characterized in that: The longitudinal beam connection assembly includes a first bracket and a second bracket; The first bracket includes a first side plate and a first bottom plate, the first side plate is sleeved outside the second part at a side close to the longitudinal beam body and connected between the end plate and the longitudinal beam body, the first bottom plate is bent and connected to an end of the first side plate close to the sub-frame and extends toward the longitudinal beam body along the Y-axis direction of the vehicle, the first bottom plate is connected to the end plate at one end close to the end cover along the X-axis direction of the vehicle, and the first bottom plate is provided with the through hole; The second bracket includes a second side plate and a first top plate, the second side plate and the first side plate are arranged opposite to each other along the Y-axis direction of the vehicle near the side of the sub-frame, the second side plate is connected to an end of the first bottom plate away from the first side plate at one end near the sub-frame, the second side plate is connected to the end plate at one end near the end cover along the X-axis direction of the vehicle, the other end of the second side plate is connected to an end of the first side plate away from the end plate, the first top plate is bent and connected to an end of the second side plate near the longitudinal beam body, the first top plate extends toward the first side plate along the Y-axis direction of the vehicle and is connected to the first side plate, and the first top plate is connected to the end plate at one end near the end cover along the X-axis direction of the vehicle; The first side plate close to the side of the sub-frame, the first bottom plate, the first top plate and the second side plate form the box-shaped structure.

5. The connection structure according to claim 4, characterized in that: The first side plate includes a first plate and a second plate, and the first plate and the second plate are distributed along the X-axis direction of the vehicle; The first plate is connected to the end plate at one end away from the second plate along the X-axis direction of the vehicle, and the first plate is sleeved outside the second portion at one side close to the longitudinal beam body; The second plate is inclined relative to the first plate and extends toward the side close to the longitudinal beam body. The second plate is connected to the longitudinal beam body and the second side plate at one end away from the first plate along the X-axis direction of the vehicle.

6. The connection structure according to claim 4, characterized in that: The first bracket has a stepped surface; and / or The second bracket is provided with reinforcing ribs.

7. The connection structure according to claim 3, characterized in that: The longitudinal beam body is provided with a connecting edge on one side close to the sub-frame, and the connecting edge extends toward the sub-frame; The box-shaped structure is connected to the connecting edge at one side close to the first part along the Y-axis direction of the vehicle.

8. The connection structure according to claim 3, characterized in that: The longitudinal beam connection assembly also includes a third bracket, which is arranged in the box-shaped structure and is respectively connected to the outer side of the mounting sleeve, the inner wall of the box-shaped structure and the end plate.

9. The connection structure according to claim 8, characterized in that: The third bracket includes a third side plate, a second top plate and a second bottom plate; The third side plate is connected to the outer peripheral side of the mounting sleeve and is connected between the inner walls on both sides of the box-like structure along the Y-axis direction of the vehicle; The second top plate is bent and connected to one end of the third side plate close to the frame body, the second top plate extends along the X-axis direction of the vehicle, the second top plate is connected to the end plate at one end away from the third side plate, and the second top plate is connected between the inner walls on both sides of the box-like structure along the Y-axis direction of the vehicle; The second bottom plate is bent and connected to one end of the third side plate close to the sub-frame, and the second bottom plate is connected to the inner wall of the box-shaped structure close to the sub-frame.

10. A vehicle, characterized in that: include: body longitudinal beams; Subframe; A connection structure as claimed in any one of claims 1 to 9.

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