Collision reinforcing structure, anti-collision beam assembly and vehicle

Abstract

The embodiment of the invention provides a collision reinforcing structure, an anti-collision beam assembly and a vehicle, and relates to the technical field of vehicles. The collision reinforcing structure comprises a plurality of enclosure pieces, the enclosure pieces define a reinforcing structure with a cavity, at least part of the enclosure pieces are connected to a longitudinal beam in the anti-collision beam assembly, the reinforcing structure is provided with a first end and a second end, and the first end and the second end both extend out of the longitudinal beam. According to the embodiment of the invention, the vehicle can be driven to slide reliably, so that the success rate of sideslip of the vehicle is increased, and the safety of the vehicle is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a collision strengthening structure, a crash beam assembly and a vehicle. BACKGROUND

[0002] When a vehicle encounters a small offset collision (usually referred to as a 25% offset collision), the contact area between the vehicle and the collision object is small and the collision is not a frontal collision, which results in greater pressure and more concentrated force on the vehicle. The impact force formed by the collision can cause significant deformation of the front of the vehicle, thereby posing a great threat to the safety of the passengers.

[0003] In related technologies, in order to improve the safety performance of the vehicle, a strengthening structure is usually configured on the crash beam assembly at the front of the vehicle. In the event of a small offset collision, the strengthening structure can drive the vehicle to slide sideways through force transmission to attenuate the harm caused by the collision. At present, the strengthening structure is not reasonably designed, which results in a low success rate of the vehicle sliding sideways, and the vehicle has deficiencies in safety performance. SUMMARY

[0004] The present application provides a collision strengthening structure, a crash beam assembly and a vehicle, which can reliably drive the vehicle to slide, thereby improving the success rate of the vehicle sliding sideways and improving the safety of the vehicle.

[0005] The first aspect of the present application provides a collision strengthening structure, comprising a plurality of enclosing members, the plurality of enclosing members enclosing to form a strengthening structure with a cavity, at least part of the enclosing members being connected to a longitudinal beam in a crash beam assembly, the strengthening structure having a first end and a second end, the first end and the second end both extending out of the longitudinal beam

[0006] According to the collision strengthening structure of the first aspect of the present application, when the vehicle encounters a small offset collision, the collision strengthening structure can absorb more impact force and quickly transmit the impact force to the entire crash beam assembly, thereby reliably driving the vehicle to slide, improving the success rate of the vehicle sliding sideways, and improving the safety of the vehicle.

[0007] In one possible implementation, the enclosing members include a first enclosing member, a second enclosing member and a third enclosing member, the first enclosing member, the second enclosing member and the third enclosing member enclosing to form a cavity, at least one of the first enclosing member, the second enclosing member and the third enclosing member being connected to the longitudinal beam.

[0008] In one possible implementation, at least part of the first enclosing member and at least part of the second enclosing member are connected to the longitudinal beam, the first enclosing member is close to the longitudinal beam, the second enclosing member is away from the longitudinal beam, and the third enclosing member is connected between the first enclosing member and the second enclosing member.

[0009] In a possible implementation, the first enclosing member comprises a first body, a first flange located at one side of the first body, and a second flange located at the other side of the first body, the second enclosing member comprises a second body, a third flange located at one side of the second body, and a second flange located at the other side of the second body, the third enclosing member comprises a third body, a fifth flange located at one side of the third body, and a sixth flange located at the other side of the third body, the first flange is connected with the third flange, the second flange is connected with the fifth flange, and the fourth flange is connected with the sixth flange.

[0010] The first body is connected with the longitudinal beam, and a notch is formed in the first flange, the third flange passes through the notch and is connected with the longitudinal beam.

[0011] The second aspect of the present application provides a crash beam assembly, comprising:

[0012] A longitudinal beam;

[0013] A crash strengthening structure according to the first aspect, and at least part of the enclosing members in the crash strengthening structure are connected with the longitudinal beam.

[0014] According to the crash beam assembly of the second aspect of the present application, when the vehicle encounters a small offset collision, the crash strengthening structure can absorb more impact force and quickly transmit the impact force to the entire crash beam assembly, thereby driving the vehicle to reliably slide, thereby improving the success rate of the vehicle to slide and improving the safety of the vehicle.

[0015] In a possible implementation, the longitudinal beam comprises a first plate body and a second plate body connected with each other, the first plate body and the second plate body are oppositely arranged, and at least part of the enclosing members in the crash strengthening structure are connected with the second plate body.

[0016] In a possible implementation, the crash beam assembly further comprises a force transmission assembly, the force transmission assembly comprises a force transmission structure located in the cavity and a force transmission connecting assembly for connecting the force transmission structure to the second plate body.

[0017] In a possible implementation, a first opening is arranged on the first plate body, the second plate body comprises a second opening arranged corresponding to the first opening, the force transmission connecting assembly comprises a threaded pipe with internal threads and a connecting column for passing through the force transmission structure and being connected to the threaded pipe, and the threaded pipe is arranged in the first opening and the second opening.

[0018] In a possible implementation, one end of the threaded pipe extends out of the second plate body, and the end of the threaded pipe extending out of the second plate body is bent to form a limiting portion, the limiting portion is attached to the surface of the second plate body, and the force transmission structure is limited on the limiting portion by the connecting column.

[0019] In a possible implementation, the force transmission structure is arranged at a middle position in the height direction of the second plate body, and a gap is left between the force transmission structure and each of the enclosing members.

[0020] In a possible implementation, the force transmission structure includes an outer layer structure having an inner cavity and a partition plate arranged in the inner cavity, the outer layer structure is provided with a first through hole, the partition plate includes a second through hole arranged corresponding to the first through hole, and the force transmission connecting assembly passes through the first through hole and the second through hole.

[0021] The third aspect of the present application provides a vehicle including the anti-collision beam assembly of the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0023] Figure 1 A schematic diagram of a transmission path of an impact force according to an embodiment of the present application is shown;

[0024] Figure 2 A schematic diagram of an anti-collision beam assembly according to an embodiment of the present application is shown;

[0025] Figure 3 A schematic diagram of an anti-collision beam assembly according to an embodiment of the present application is shown, with the second enclosing member removed;

[0026] Figure 4 A sectional view of an anti-collision beam assembly according to an embodiment of the present application along a first section is shown;

[0027] Figure 5 A sectional view of an anti-collision beam assembly according to an embodiment of the present application along a second section is shown;

[0028] Figure 6 A sectional view of a collision strengthening structure according to an embodiment of the present application is shown.

[0029] REFERENCE SIGNS:

[0030] 100 - first enclosing member; 110 - first main body; 120 - first flange; 130 - second flange;

[0031] 200 - second enclosure; 210 - second body; 220 - third flange; 230 - fourth flange;

[0032] 300 - third enclosure; 310 - third body; 320 - fifth flange; 330 - sixth flange;

[0033] 10 - impact object;

[0034] 20 - impact reinforcement structure; 21 - enclosure; 21a - cavity; 21b - reinforcement structure; 21b1 - first end; 21b2 - second end;

[0035] 30 - longitudinal beam; 31 - first plate body; 32 - second plate body; 30a - longitudinal beam cavity; 30b - connecting site; 31a - first plate body flange; 31b - first reinforcement beam; 31c - first opening; 32a - second plate body flange; 32b - second opening;

[0036] 40 - subframe;

[0037] 50 - engine;

[0038] 60 - force transmission assembly; 61 - force transmission structure; 62 - force transmission connecting assembly; 61a - outer structure; 61b - spacer plate; 62a - threaded pipe; 62b - connecting column; 61a1 - first through hole; 61a2 - outer side wall; 61a3 - inner side wall; 61b1 - second through hole; 62a1 - limiting part.

[0039] The specific embodiments of the present application have been shown in the above-described drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative work are within the scope of protection of the present application.

[0041] Small offset collision is a very challenging project in vehicle safety test, the core of which is to evaluate the protection ability of the vehicle to the occupants when the vehicle collides with a rigid impact object at a speed of 64km / h with a 25% overlap rate. The performance of the vehicle in the small offset collision also becomes an important indicator to measure the quality of the vehicle.

[0042] The front part of the vehicle is provided with a front collision beam assembly. When the vehicle collides, the front collision beam assembly can absorb part of the impact force, thereby protecting the vehicle and the personnel in the vehicle. It can be understood that when the vehicle collides 100% frontally, the front collision beam assembly can play its role of absorbing impact force. When the vehicle collides with a small offset, the contact area between the vehicle and the collision object is small and is not frontal collision, resulting in greater pressure and more concentrated force on the vehicle. The impact force formed by the collision is difficult to transmit to the front collision beam assembly, and most of the impact force can pass through the front collision beam assembly and act on the chassis, tires, A-pillar and rocker of the vehicle, causing the A-pillar and rocker to deform greatly. The impact force formed by the collision can cause the front part of the vehicle to deform significantly, thereby posing a great threat to the safety of the passengers.

[0043] To increase the safety of the vehicle when it collides with a small offset, the safety airbag can be increased, the material with better structural strength can be used, or the structural size of some parts of the front collision beam assembly can be increased. These ways do not obviously improve the safety, and cause the increase of the manufacturing cost of the front collision beam assembly and the vehicle.

[0044] Therefore, in the related art, a way of attenuating or absorbing impact force by driving the vehicle to slide sideways is provided. When the vehicle slides sideways during the collision process, the harm caused by the collision to the vehicle or the passengers can be greatly reduced.

[0045] Specifically, a reinforcing structure can be arranged on the front collision beam assembly. When a small offset collision occurs, the reinforcing structure can absorb the impact force and complete the transmission of the impact force. The reinforcing structure drives the vehicle to slide sideways to attenuate the harm caused by the collision by the way of force transmission. At present, the reinforcing structure is not reasonably designed. The main problems are that the transmission path of the impact force is not reasonably designed, the structure of the reinforcing structure itself is not reasonably designed, and the connection mode between the reinforcing structure and the front collision beam assembly is not reasonably designed, resulting in low success rate of the vehicle sliding sideways and insufficient safety performance of the vehicle.

[0046] Based on the above status and problems, the embodiments of the present application provide a collision reinforcing structure. The collision reinforcing structure can be part of the front collision beam assembly. The collision reinforcing structure can contact the collision object and absorb and transmit the impact force formed by the collision when the vehicle collides with a small offset, and the impact force can be transmitted to other parts of the front collision beam assembly in a shorter path, so that the entire front collision beam assembly can absorb the impact force and drive the vehicle to reliably slide, thereby improving the success rate of the vehicle sliding sideways and improving the safety of the vehicle.

[0047] To this end, in a first aspect, the crash reinforcement structure in the embodiments of the present application needs to cover other parts of the crash beam assembly in size, so that the crash reinforcement structure can first contact the impact object when a small offset collision occurs. In a second aspect, the crash reinforcement structure in the embodiments of the present application adopts a hollow design on the basis of ensuring its structural strength, thereby being capable of improving the impact force absorption capacity of the crash reinforcement structure. In a third aspect, the crash reinforcement structure in the embodiments of the present application needs to be directly connected to other parts of the crash beam assembly, so that the impact force can be quickly transmitted to the entire crash beam assembly.

[0048] The embodiments of the present application also provide a crash beam assembly, and only the parts associated with the crash reinforcement structure in the crash beam assembly are introduced in the embodiments of the present application. Other detailed structures of the crash beam assembly can be understood with reference to related technologies.

[0049] In the embodiments of the present application, the structure associated with the crash reinforcement structure in the crash beam assembly is a longitudinal beam, and specifically, the longitudinal beam can be an upper longitudinal beam. In other words, the crash reinforcement structure can be connected to the longitudinal beam, and when a small offset collision occurs, the impact force can be transmitted along the crash reinforcement structure, the longitudinal beam, the subframe and the engine. The transmission direction of the impact force is substantially perpendicular to the direction of the vehicle body, so that the vehicle is more prone to side sliding.

[0050] Figure 1 An impact force transmission path diagram is shown according to the embodiments of the present application.

[0051] Please refer to Figure 1 When a small offset collision occurs in the vehicle, the impact object 10 acts on the vehicle from the corner of the front part of the vehicle. At this time, based on the above three aspects of the design of the crash reinforcement structure 20, the impact force can be transmitted along the direction of the crash reinforcement structure 20, the longitudinal beam 30, the subframe 40 and the engine 50. The transmission path can be referred to as S in Figure 1 Under the transmission path, the vehicle is more prone to side sliding, thereby improving the safety performance of the vehicle.

[0052] Figure 2 A structural diagram of a crash beam assembly is shown according to the embodiments of the present application. Figure 3 A structural diagram of a crash beam assembly without the second enclosing member 200 is shown according to the embodiments of the present application. Figure 4 A sectional view of a crash beam assembly along a first section plane is shown according to the embodiments of the present application. Figure 5 A sectional view of a crash beam assembly along a second section plane is shown according to the embodiments of the present application. The first section plane is parallel to the horizontal plane, and the second section plane is parallel to the vertical plane.

[0053] In the embodiments of the present application, please refer to Figures 2 to 5The anti-collision beam assembly comprises longitudinal beams 30 and a collision reinforcement structure 20.

[0054] Reference can be made to the accompanying drawings Figures 1 to 3 The longitudinal beams 30 are arranged on both sides of the front part of the vehicle in the width direction, so that the longitudinal beams 30 can absorb the impact suffered by the left or right side of the vehicle. The specific structure of the longitudinal beams 30 is not limited in the embodiments of the present application, and the longitudinal beams 30 can be arranged according to related technologies.

[0055] The collision reinforcement structure 20 is formed by a plurality of enclosing members 21, has a cavity 21a, and has both ends extending out of the longitudinal beams 30, and at least part of the enclosing members 21 in the collision reinforcement structure 20 are connected to the longitudinal beams 30.

[0056] It can be understood that the collision reinforcement structure 20 described above can meet the three design requirements set for the collision reinforcement structure 20 in the foregoing, so that the collision reinforcement structure 20 has sufficient structural strength and rigidity, can absorb more impact force, and can also make the collision reinforcement structure 20 first contact the impact object 10 when the vehicle suffers a small offset collision, in addition, can also shorten the force transmission path between the collision reinforcement structure 20 and the longitudinal beams 30.

[0057] Therefore, for the anti-collision beam assembly in the embodiments of the present application, when the vehicle encounters a small offset collision, the collision reinforcement structure 20 can absorb more impact force and quickly transmit the impact force to the entire anti-collision beam assembly, thereby driving the vehicle to reliably slide, thereby improving the success rate of the vehicle to slide sideways, thereby improving the safety of the vehicle.

[0058] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 5 The longitudinal beams 30 comprise a first plate body 31 and a second plate body 32 connected to each other, the first plate body 31 and the second plate body 32 are arranged oppositely, and at least part of the enclosing members 21 in the collision reinforcement structure 20 are connected to the second plate body 32.

[0059] It can be understood that the first plate body 31 is located on the inner side of the vehicle, and the second plate body 32 is located on the outer side of the vehicle body, and the impact force can first act on the second plate body 32, so that the collision reinforcement structure 20 can be connected to the second plate body 32, and specifically, part of the enclosing members 21 can be connected to the second plate body 32 to realize the connection between the collision reinforcement structure 20 and the longitudinal beams 30.

[0060] In some embodiments, please refer to Figure 3, the first plate body 31 and the second plate body 32 are formed with a longitudinal beam cavity 30a, and the longitudinal beam 30 can play a good role in absorbing impact force based on the arrangement of the longitudinal beam cavity 30a. Specifically, when the impact force is transmitted to the longitudinal beam 30 via the impact strengthening structure 20, the longitudinal beam cavity 30a can provide more deformation space for the longitudinal beam 30, so that the impact force can be absorbed by the deformation of the longitudinal beam 30.

[0061] In some embodiments, please refer to Figure 3 and Figure 5 , two connecting positions 30b are formed between the first plate body 31 and the second plate body 32, and the two connecting positions 30b are in the vertical direction.

[0062] It can be understood that for the longitudinal beam 30, the connecting position 30b is a weak link in the longitudinal beam 30, and the connecting position 30b is arranged in the vertical direction to improve the structural strength of the longitudinal beam 30. In combination with the transmission path of the impact force described above, the impact force can act on the longitudinal beam 30 in the transverse direction, and the vertically arranged connecting position 30b can avoid forming a cross force on the longitudinal beam 30, so that the longitudinal beam 30 can be deformed as much as possible in the direction of the impact force, thereby improving the structural strength of the longitudinal beam 30.

[0063] In some specific embodiments, please refer to Figure 5 , the first plate body 31 is provided with two first plate body flanges 31a extending in opposite directions, the second plate body 32 is provided with two second plate body flanges 32a extending in opposite directions, and the first plate body flange 31a and the second plate body flange 32a are connected correspondingly and form the connecting position 30b.

[0064] The connecting design between the first flange 120 and the second flange 130 can improve the contact area of the connecting position 30b, thereby improving the connection reliability between the first plate body 31 and the second plate body 32.

[0065] In some embodiments, please refer to Figure 5 , the first plate body 31 is further provided with a first reinforcing beam 31b away from the second plate body 32, which can improve the structural strength of the first plate body 31.

[0066] The first reinforcing beam 31b can be arranged near the threaded pipe 62a in the following embodiments. The number and position of the first reinforcing beam 31b can be arranged according to actual needs, for example, please refer to Figure 5 , in the following embodiments, two threaded pipes 62a are arranged on the longitudinal beam 30, and therefore one first reinforcing beam 31b can be arranged on the first plate body 31 corresponding to the two threaded pipes 62a.

[0067] Of course, in other embodiments, a second reinforcing beam (not shown in the figure) can also be provided on the second plate body 32, and the number and position of the second reinforcing beam can be set according to requirements.

[0068] In some embodiments, please refer to Figures 3 to 5 , the anti-collision beam assembly further comprises a force transmission assembly 60 connected between the longitudinal beam 30 and the collision reinforcement structure 20.

[0069] The overall role of the force transmission assembly 60 is to form a better connection between the collision reinforcement structure 20 and the longitudinal beam 30 and form a better force transmission path, so that when the vehicle encounters a small offset collision, the impact force can be relatively concentrated from the collision reinforcement structure 20 to the longitudinal beam 30.

[0070] The specific structure of the force transmission assembly 60 is not limited in the embodiments of the present application, for example, the force transmission assembly 60 can be a force transmission guide rod penetrating through the longitudinal beam 30 and the collision reinforcement structure 20, the cross section of the force transmission guide rod can be circular, and the number of the force transmission guide rod can be set according to actual requirements.

[0071] In some embodiments, because the collision reinforcement structure 20 is provided with the cavity 21a, the collision reinforcement structure 20 can absorb greater impact force, and after absorbing the impact force, the collision reinforcement structure 20 will deform, for example, the entire collision reinforcement structure 20 will contract along the direction of the impact force. On this basis, the deformation of the collision reinforcement structure 20 can be used to complete the continuous transmission of the impact force, for example, a part of the force transmission assembly 60 can be arranged in the cavity 21a, so that after the collision reinforcement structure 20 deforms, the impact force can continue to act on the force transmission assembly 60, thereby realizing the continuous transmission of the impact force.

[0072] Based on this, in some embodiments, please refer to Figure 5 , the force transmission assembly 60 comprises a force transmission structural member 61 located in the cavity 21a and a force transmission connecting assembly 62 for connecting the force transmission structural member 61 to the second plate body 32.

[0073] It can be understood that when the collision reinforcement structure 20 is subjected to the impact force and deforms, the impact force can continue to act on the force transmission structural member 61, and then be transmitted to the longitudinal beam 30 through the action of the force transmission connecting assembly 62, thereby realizing the rapid transmission of the impact force between the collision reinforcement structure 20 and the longitudinal beam 30.

[0074] The force transmission structural member 61 has certain requirements for structural strength and rigidity, therefore, the force transmission structural member 61 can be made of aluminum alloy or the like. In order to improve the impact absorbing capacity of the force transmission structural member 61, the force transmission structural member 61 can adopt a hollow structure, and the force transmission connecting assembly 62 can be connected to one side of the force transmission structural member 61.

[0075] Of course, in order to improve the stability of the impact force transmission, the force transmission connecting assembly 62 can be penetrated into the force transmission structure 61.

[0076] For example, in some embodiments, referring to Figures 3 to 5 , the force transmission structure 61 includes an outer layer structure 61a with an inner cavity and a partition plate 61b arranged in the inner cavity, the outer layer structure 61a is provided with a first through hole 61a1, the partition plate 61b includes a second through hole 61b1 arranged corresponding to the first through hole 61a1, and the force transmission connecting assembly 62 penetrates through the first through hole 61a1 and the second through hole 61b1.

[0077] The outer layer structure 61a can meet the hollow structure requirement of the force transmission structure 61, and the partition plate 61b can enhance the structural strength of the outer layer structure 61a, thereby improving the overall structural strength of the force transmission structure 61. The first through hole 61a1 and the second through hole 61b1 are arranged correspondingly, which can meet the requirement of the force transmission connecting assembly 62 penetratingly connecting to the force transmission structure 61.

[0078] In some embodiments, referring to Figure 3 and Figure 5 , the number of the first through hole 61a1 and the second through hole 61b1 is two, which can be the same as the number of the force transmission connecting assembly 62.

[0079] In some embodiments, referring to Figure 3 and Figure 4 , the outer layer structure 61a includes an outer side wall 61a2 and an inner side wall 61a3, and the first through hole 61a1 penetrates through the outer side wall 61a2 and the inner side wall 61a3.

[0080] It should be noted that the outer side wall 61a2 is arranged away from the longitudinal beam 30, and the inner side wall 61a3 is arranged close to the longitudinal beam 30. In order to improve the force transmission reliability or connection reliability between the force transmission structure 61 and the longitudinal beam 30, the area of the inner side wall 61a3 can be greater than the area of the outer side wall 61a2.

[0081] In some embodiments, referring to Figure 3 , the force transmission structure 61 is arranged at the middle position of the height direction of the second plate body 32, so that the impact force can be transmitted from the middle position to the longitudinal beam 30.

[0082] In some embodiments, referring to Figure 4 , a gap is left between the force transmission structure 61 and each enclosure 21, so that abnormal noise generated by extrusion and friction between the force transmission structure 61 and the enclosure 21 during the driving of the vehicle can be prevented.

[0083] The force transmission connecting assembly 62 can not only penetrate the force transmission structure 61, but also penetrate the longitudinal beam 30, thereby improving the stability of the impact force transmission process.

[0084] In some embodiments, referring to Figures 3 to 5 , the first plate body 31 is provided with a first opening 31c, the second plate body 32 includes a second opening 32b corresponding to the first opening 31c, the force transmission connecting assembly 62 includes a threaded pipe 62a with internal threads and a connecting column 62b for penetrating the force transmission structure and connecting to the threaded pipe 62a, and the threaded pipe 62a is arranged in the first opening 31c and the second opening 32b.

[0085] In combination with the foregoing, in order to ensure the lateral transmission of the impact force, the first opening 31c and the second opening 32b should be arranged at the same horizontal height, so that after the threaded pipe 62a is arranged in the first opening 31c and the second opening 32b, the threaded pipe 62a is arranged in the horizontal direction, the threaded pipe 62a can be penetrated in the longitudinal beam 30, and the internal threads are left towards the connecting column 62b. The threaded column is used to connect the force transmission structure 61 to the longitudinal beam 30, specifically, by penetrating the threaded column through the first perforation 61a1 and the second perforation 61b1 and locking into the internal threads, the connection between the force transmission structure 61 and the longitudinal beam 30 can be achieved.

[0086] In the above structure and connection mode, the impact force transmitted to the force transmission structure 61 can continue to be transmitted to the longitudinal beam 30 along the connecting column 62b and the threaded pipe 62a. Based on the horizontal arrangement of the threaded pipe 62a and the connecting column 62b, the impact force can be transmitted laterally, and the success rate of the vehicle sliding can be improved.

[0087] In some specific embodiments, the threaded rod can be connected to the first plate body 31 and the second plate body 32 by protective welding.

[0088] In some embodiments, referring to Figure 4 and Figure 5 , one end of the threaded pipe 62a protrudes from the second plate body 32, the end of the threaded pipe 62a protruding from the second plate body 32 is bent to form a limiting portion 62a1, the limiting portion 62a1 is attached to the surface of the second plate body 32, and the force transmission structure 61 is limited on the limiting portion 62a1 by the connecting column 62b.

[0089] The limiting portion 62a1 can prevent the threaded pipe 62a from being separated from the longitudinal beam 30, and on the other hand, the force transmission structure 61 can be connected to the limiting portion 62a1, thereby enabling the impact force to be more concentratedly transmitted to the longitudinal beam 30.

[0090] In some embodiments, referring to Figures 3 to 5Two threaded pipes 62a are arranged on the longitudinal beam 30, and the two threaded pipes 62a are arranged in parallel. Correspondingly, the number of the first openings 31c on the first plate body 31 is also two, the number of the second openings 32b on the second plate body 32 is also two, and the number of the connecting columns 62b is also two. The number of the first perforations 61a1 and the second perforations 61b1 is also two. Therefore, two force transmission channels can be formed between the force transmission structure 61 and the longitudinal beam 30, the local force of the longitudinal beam 30 can be prevented from being too large to cause significant deformation, and the safety performance of the vehicle can be improved to a certain extent.

[0091] Of course, in some embodiments, the number of the threaded pipes 62a, the connecting columns 62b, the first openings 31c, the second openings 32b, the first perforations 61a1 and the second perforations 61b1 can be three, four or the like. In addition, the number of the force transmission structures 61 can also be more.

[0092] In the embodiments of the present application, please refer to Figure 2 and Figure 3 The crash reinforcement structure 20 includes a plurality of enclosing members 21, the plurality of enclosing members 21 enclose to form a reinforcement structure 21b with a cavity 21a, and at least part of the enclosing members 21 are connected to the longitudinal beam 30 in the crash beam assembly. The reinforcement structure 21b has a first end 21b1 and a second end 21b2, and both the first end 21b1 and the second end 21b2 extend out of the longitudinal beam 30.

[0093] It can be understood that the crash reinforcement structure 20 described above can meet the three design requirements set for the crash reinforcement structure 20 in the foregoing, so that the crash reinforcement structure 20 has sufficient structural strength and rigidity, can absorb more impact force, and also makes the crash reinforcement structure 20 first contact the impact object 10 when the vehicle has a small offset collision. In addition, the force transmission path between the crash reinforcement structure 20 and the longitudinal beam 30 can be shortened.

[0094] It should be noted that the first end 21b1 and the second end 21b2 of the reinforcement structure 21b are two ends of the reinforcement structure 21b in the height direction of the vehicle. By arranging the first end 21b1 and the second end 21b2 to extend out of the longitudinal beam 30, the crash reinforcement structure 20 can cover the longitudinal beam 30 in size.

[0095] In addition, in combination with the collision position of the small offset collision, the crash reinforcement structure 20 can be arranged at the front end of the longitudinal beam 30.

[0096] In the case of a small offset collision, assuming the collision position is at or near the first end 21b1, the impact force received by the first end 21b1 can be transmitted to the second end 21b2, so that the impact force spreads over the entire collision reinforcement structure 20, based on the cavity 21a arrangement of the collision reinforcement structure 20, most of the impact force can be absorbed, and then based on the connection arrangement between the enclosing member 21 and the longitudinal beam 30, the impact force can continue to be transmitted to the longitudinal beam 30. Assuming the collision position is at or near the second end 21b2, the absorption and transmission of the impact force are similar to the first end 21b1, which will not be described again. Of course, when the collision position is at a position between the first end 21b1 and the second end 21b2, the collision reinforcement structure 20 can still achieve the absorption and transmission of the impact force.

[0097] Therefore, for the collision reinforcement structure 20 in the embodiments of the present application, in the case of a small offset collision of the vehicle, the collision reinforcement structure 20 can absorb more impact force and quickly transmit the impact force to the entire crash beam assembly, thereby driving the vehicle to reliably slide, thereby improving the success rate of the vehicle to slide and improving the safety of the vehicle.

[0098] Figure 6 A cross-sectional view of a collision reinforcement structure 20 according to an embodiment of the present application is shown.

[0099] In some embodiments, referring to Figure 2 , Figure 3 and Figure 6 , the enclosing member 21 includes a first enclosing member 100, a second enclosing member 200, and a third enclosing member 300, the first enclosing member 100, the second enclosing member 200, and the third enclosing member 300 enclose the cavity 21a, and at least one of the first enclosing member 100, the second enclosing member 200, and the third enclosing member 300 is connected to the longitudinal beam 30.

[0100] It can be understood that by setting three enclosing members 21 and connecting them into a reinforcement structure 21b, the structural strength of the reinforcement structure 21b can be improved, and the reinforcement structure 21b has good structural strength.

[0101] The connection of at least one of the first enclosing member 100, the second enclosing member 200, and the third enclosing member 300 to the longitudinal beam 30 can enable the impact force to be quickly transmitted to the longitudinal beam 30.

[0102] In other embodiments, the number of enclosing members 21 can be changed, for example, the total number of enclosing members 21 can be 4, 5, etc.

[0103] In some embodiments, referring to Figure 2 , Figure 3 and Figure 6At least part of the first enclosing member 100 and at least part of the second enclosing member 200 are connected to the longitudinal beam 30, the first enclosing member 100 is close to the longitudinal beam 30, the second enclosing member 200 is away from the longitudinal beam 30, and the third enclosing member 300 is connected between the first enclosing member 100 and the second enclosing member 200.

[0104] Therefore, the first enclosing member 100 and the second enclosing member 200 can be connected to the longitudinal beam 30, so that the impact force is more easily transmitted to the longitudinal beam 30. Since the first enclosing member 100 is close to the longitudinal beam 30 and the second enclosing member 200 is away from the longitudinal beam 30, and the third enclosing member 300 is connected between the first enclosing member 100 and the second enclosing member 200, the combined effect of the first enclosing member 100, the second enclosing member 200 and the third enclosing member 300 can optimize the transmission of impact force while ensuring the structural strength of the crash reinforcement structure 20. Specifically, the first enclosing member 100 and the second enclosing member 200 are arranged inside and outside, so that the impact force can be fully absorbed by the first enclosing member 100 and the second enclosing member 200, and then based on the connection relationship between the two and the longitudinal beam 30, the impact force can be quickly transmitted to the longitudinal beam 30. The third enclosing member 300 arranged between the first enclosing member 100 and the second enclosing member 200 serves to reinforce the structural strength of the first enclosing member 100 and the second enclosing member 200. Based on the connecting effect of the third enclosing member 300, the impact force can spread to the entire crash reinforcement structure 20.

[0105] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 6 The first enclosing member 100 includes a first body 110, a first flange 120 located on one side of the first body 110, and a second flange 130 located on the other side of the first body 110. The second enclosing member 200 includes a second body 210, a third flange 220 located on one side of the second body 210, and a second flange 130 located on the other side of the second body 210. The third enclosing member 300 includes a third body 310, a fifth flange 320 located on one side of the third body 310, and a sixth flange 330 located on the other side of the third body 310. The first flange 120 is connected to the third flange 220, the second flange 130 is connected to the fifth flange 320, and the fourth flange 230 is connected to the sixth flange 330.

[0106] For the first enclosure 100 and the second enclosure 200, the connection between the two is achieved through the first flange 120 and the third flange 220, which can improve the connection strength between the two. For the third enclosure 300, the connection between the fifth flange 320 and the second flange 130 and the connection between the sixth flange 330 and the fourth flange 230 can enable the third enclosure 300 to be stably connected between the first enclosure 100 and the second enclosure 200, thereby improving the overall structural strength of the crash reinforcement structure 20.

[0107] In some embodiments, the first body 110 is connected to the longitudinal beam 30, and the first flange 120 is formed with a gap, and the third flange 220 passes through the gap and is connected to the longitudinal beam 30.

[0108] The gap in the first flange 120 is designed to avoid interference, which facilitates the connection of the second enclosure 200 to the longitudinal beam 30.

[0109] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0110] In the description of the present application, it should be understood that the terms "include" and "have" and any variations thereof used in the embodiments of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or apparatus that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to the process, method, product or apparatus.

[0111] Unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect", "fix", and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be connected or interacted between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0112] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A collision reinforcement structure (20), characterized in that, The device includes multiple enclosures (21) that enclose each other to form a reinforcing structure (21b) with a cavity (21a). At least a portion of the enclosures (21) are connected to a longitudinal beam (30) in the anti-collision beam assembly. The reinforcing structure (21b) has a first end (21b1) and a second end (21b2) that both extend out of the longitudinal beam (30).

2. The collision reinforcement structure (20) according to claim 1, characterized in that, The enclosure (21) includes a first enclosure (100), a second enclosure (200), and a third enclosure (300). The first enclosure (100), the second enclosure (200), and the third enclosure (300) enclose a cavity (21a). At least one of the first enclosure (100), the second enclosure (200), and the third enclosure (300) is connected to the longitudinal beam (30).

3. The collision reinforcement structure (20) according to claim 2, characterized in that, At least a portion of the first enclosure (100) and at least a portion of the second enclosure (200) are connected to the longitudinal beam (30), the first enclosure (100) being close to the longitudinal beam (30) and the second enclosure (200) being away from the longitudinal beam (30), and the third enclosure (300) being connected between the first enclosure (100) and the second enclosure (200).

4. The collision reinforcement structure (20) according to claim 3, characterized in that, The first enclosure (100) includes a first body (110), a first flange (120) located on one side of the first body (110), and a second flange (130) located on the other side of the first body (110). The second enclosure (200) includes a second body (210), a third flange (220) located on one side of the second body (210), and a second flange (130) located on the other side of the second body (210). The third enclosure (300) includes a third body (310), a fifth flange (320) located on one side of the third body (310), and a sixth flange (330) located on the other side of the third body (310). The first flange (120) is connected to the third flange (220), the second flange (130) is connected to the fifth flange (320), and the fourth flange (230) is connected to the sixth flange (330). The first body (110) is connected to the longitudinal beam (30), and a notch is formed on the first flange (120). The third flange (220) passes through the notch and is connected to the longitudinal beam (30).

5. A crash beam assembly, characterized in that, include: Longitudinal beam (30); And the collision reinforcement structure (20) according to any one of claims 1 to 4, wherein at least a portion of the enclosure (21) in the collision reinforcement structure (20) is connected to the longitudinal beam (30).

6. The anti-collision beam assembly according to claim 5, characterized in that, The longitudinal beam (30) includes a first plate (31) and a second plate (32) connected to each other, the first plate (31) and the second plate (32) being arranged opposite to each other, and at least part of the enclosure (21) in the collision reinforcement structure (20) being connected to the second plate (32).

7. The anti-collision beam assembly according to claim 6, characterized in that, The anti-collision beam assembly also includes a force transmission component (60), which includes a force transmission structure (61) located in the cavity (21a) and a force transmission connection component (62) for connecting the force transmission structure (61) to the second plate (32).

8. The anti-collision beam assembly according to claim 7, characterized in that, The first plate (31) is provided with a first opening (31c), and the second plate (32) includes a second opening (32b) corresponding to the first opening (31c). The force transmission connection assembly (62) includes a threaded tube (62a) with internal threads and a connecting post (62b) for passing through the force transmission structure (61) and connecting to the threaded tube (62a). The threaded tube (62a) is disposed in the first opening (31c) and the second opening (32b).

9. The anti-collision beam assembly according to claim 8, characterized in that, One end of the threaded tube (62a) extends out of the second plate (32), and the end of the threaded tube (62a) extending out of the second plate (32) is bent to form a limiting part (62a1). The limiting part (62a1) is attached to the surface of the second plate (32), and the force transmission structure (61) is restricted on the limiting part (62a1) by the connecting post (62b).

10. The anti-collision beam assembly according to any one of claims 7 to 9, characterized in that, The force transmission structure (61) is positioned at the middle of the height direction of the second plate (32), and a gap is left between the force transmission structure (61) and each of the enclosure members (21).

11. The anti-collision beam assembly according to any one of claims 7 to 9, characterized in that, The force transmission structure (61) includes an outer layer structure (61a) with an inner cavity and a spacer plate (61b) disposed in the inner cavity. The outer layer structure (61a) is provided with a first through hole (61a1), and the spacer plate (61b) includes a second through hole (61b1) corresponding to the first through hole (61a1). The force transmission connection assembly (62) passes through the first through hole (61a1) and the second through hole (61b1).

12. A vehicle, characterized in that, The anti-collision beam assembly includes any one of claims 5 to 11.

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