Anti-collision beam assembly, body and vehicle

Abstract

This application relates to a crash beam assembly, a vehicle body, and a vehicle, specifically in the field of vehicle technology. The crash beam assembly includes a crash beam body, a first energy-absorbing box, and a first reinforcing member. The first energy-absorbing box is connected to the crash beam body. The first reinforcing member includes a connecting portion and a reinforcing portion connected to the connecting portion. The connecting portion is connected to the side of the first energy-absorbing box away from the crash beam body and is adapted to connect to a longitudinal beam of the vehicle. The reinforcing portion is located on the periphery of the first energy-absorbing box and connected to it. The crash beam assembly of this application addresses the problem of how to improve the crashworthiness of the crash beam body.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to anti-collision beam assemblies, vehicle bodies, and vehicles. Background Technology

[0002] In the vehicle safety design system, the anti-collision beam assembly, as the core load-bearing structure for vehicle collision load transfer and energy absorption, determines the vehicle's safety protection effectiveness in collision accidents and is a key barrier to protect the lives of drivers and passengers.

[0003] In the prior art, a front bumper beam assembly suitable for electric vehicles is provided, comprising a bumper beam body, an energy-absorbing box connected to the bumper beam body, and a bumper beam mounting plate connected to the energy-absorbing box. Two energy-absorbing boxes are disposed on the bumper beam body, arranged along the length direction of the bumper beam body, and each energy-absorbing box is located at one end of the bumper beam body. One end of each energy-absorbing box is welded to the bumper beam body, and the other end is welded to the bumper beam mounting plate. The two energy-absorbing tubes of each energy-absorbing box are arranged along the width direction of the bumper beam body. The width direction of the bumper beam body is parallel to the Z-direction, the length direction of the bumper beam body is parallel to the Y-direction, and the length direction of the energy-absorbing tubes is parallel to the X-direction.

[0004] In small offset crash tests of heavy vehicles, the collision load is concentrated on one side of the vehicle, and the anti-collision beam assembly bears asymmetrical high-intensity impact load. In existing anti-collision beam assemblies, the connection method between the energy-absorbing box and the anti-collision beam mounting plate results in poor connection strength between the energy-absorbing box and the vehicle's longitudinal beam. During a collision, the energy-absorbing box is prone to detach from the vehicle's longitudinal beam, which prevents the energy-absorbing box from effectively deforming and absorbing energy, resulting in poor anti-collision performance of the anti-collision beam itself. Utility Model Content

[0005] One objective of this application is to provide a crash beam assembly to solve the problem of how to improve the crash protection effect of the crash beam itself. A second objective of this application is to provide a vehicle body. A third objective of this application is to provide a vehicle.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] In a first aspect, embodiments of this application provide a crash beam assembly for a vehicle. The crash beam assembly includes a crash beam body, a first energy-absorbing box, and a first reinforcing member. The first energy-absorbing box is connected to the crash beam body. The first reinforcing member includes a connecting portion and a reinforcing portion connected to the connecting portion. The connecting portion is connected to the side of the first energy-absorbing box away from the crash beam body and is adapted to connect to the longitudinal beam of the vehicle. The reinforcing portion is located on the periphery of the first energy-absorbing box and is connected to the energy-absorbing box.

[0008] According to the above technical means, one end of the connecting part is connected to the first energy-absorbing box, and the other end of the connecting part is connected to the longitudinal beam of the vehicle. That is, the connecting part is located between the first energy-absorbing box and the longitudinal beam of the vehicle. The connecting part can distribute the force on the connection between the first energy-absorbing box and the longitudinal beam of the vehicle. Furthermore, the reinforcing part is connected to the periphery of the first energy-absorbing box. The force on the first energy-absorbing box can be transferred to the reinforcing part, and then transferred to the longitudinal beam of the vehicle through the connecting part, forming a multi-level force transmission path. This avoids the connection between the first energy-absorbing box and the longitudinal beam of the vehicle from breaking due to excessive force at a single connection point. When the vehicle collides, it can avoid the energy-absorbing box from detaching from the longitudinal beam and being unable to deform and absorb energy, thereby improving the anti-collision effect of the anti-collision beam body, reducing the risk of deformation of the vehicle longitudinal beam, and reducing the degree of damage to the vehicle body.

[0009] In some embodiments, the reinforcing portion includes a first reinforcing portion, a second reinforcing portion, and a third reinforcing portion. Along the height direction of the vehicle, the first reinforcing portion is connected to one side of the first energy-absorbing box, and the second reinforcing portion is connected to the other side of the first energy-absorbing box; along the width direction of the vehicle, the third reinforcing portion is connected to one side of the first energy-absorbing box.

[0010] According to the above-mentioned technical means, the first and second reinforcing parts, which are arranged along the height direction of the vehicle, are respectively connected to both sides of the first energy-absorbing box. They can provide support and constraint for the first energy-absorbing box when the vehicle collides, prevent the first energy-absorbing box from deviating in direction during the collision, and ensure that the first energy-absorbing box can collapse and absorb energy in a preset direction, thereby improving the energy absorption efficiency of the first energy-absorbing box. The third reinforcing part is connected to one side of the first energy-absorbing box along the width direction of the vehicle. The third reinforcing part, together with the first and second reinforcing parts, forms a stable frame structure, which can better cope with collision forces from different directions. When a collision occurs, it can effectively transfer the collision force from the first energy-absorbing box to the longitudinal beam of the vehicle, so that the collision force can be more evenly distributed and transmitted in the entire anti-collision beam assembly, thereby improving the structural strength of the entire anti-collision beam assembly and increasing the service life of the anti-collision beam assembly.

[0011] In some embodiments, the reinforcing part and the first energy-absorbing box are detachably connected.

[0012] Based on the aforementioned technical methods, after a vehicle collision, the damage to the anti-collision beam assembly is usually concentrated in the first energy-absorbing box, and the reinforcement and the first energy-absorbing box are detachably connected. If only the first energy-absorbing box collapses, only the first energy-absorbing box needs to be replaced; if the reinforcement is deformed and damaged, only the reinforcement needs to be replaced. In this way, parts waste can be reduced, maintenance costs can be lowered, maintenance time can be shortened, and disassembly and assembly can be made more convenient.

[0013] In some embodiments, the reinforcing part is provided with a first connecting hole, the first energy-absorbing box is provided with a second connecting hole, and the anti-collision beam assembly further includes a first fastener, which passes through the first connecting hole and the second connecting hole.

[0014] According to the aforementioned technical means, by connecting the first connecting hole and the second connecting hole with a first fastener, the first energy-absorbing box and the reinforcing part are connected. This prevents the first fastener from loosening due to vibrations during long-term vehicle operation, ensuring the reliability of the connection under daily use and collisions. Furthermore, disassembly only requires unscrewing the first fastener to separate the reinforcing part and the first energy-absorbing box, and assembly only requires aligning the first connecting hole and the second connecting hole, inserting the first fastener, and tightening it, reducing the difficulty of operation. Moreover, the first energy-absorbing box and the reinforcing part will not be damaged during the disassembly and assembly of the first fastener. If temporary disassembly and inspection are required during maintenance, the first fastener can be reassembled after inspection, reducing the waste of parts.

[0015] In some embodiments, the system further includes a second energy-absorbing box and a second reinforcing member. The anti-collision beam body also includes a mounting portion. The second energy-absorbing box is connected to the mounting portion on the side facing the first energy-absorbing box. The second energy-absorbing box is located on the outside of the first energy-absorbing box in the vehicle width direction. The second reinforcing member is connected to the mounting portion.

[0016] According to the aforementioned technical means, the first energy-absorbing box is located in the core area along the vehicle's width, and the second energy-absorbing box is located outside the first energy-absorbing box. This extends the energy-absorbing area along the vehicle's width, covering areas that the first energy-absorbing box cannot reach. When a side collision occurs, the impact force will first act on the outer second energy-absorbing box, avoiding structural damage to the vehicle due to blind spots. The first and second energy-absorbing boxes form a multi-stage energy absorption mechanism. When the impact force acts on the outer front of the vehicle, it will preferentially trigger the collapse of the second energy-absorbing box. The remaining energy will be transferred to the inner first energy-absorbing box, where it will further collapse and absorb the energy, thus more fully dissipating the impact energy and reducing the risk of occupant injury. Furthermore, the second reinforcing member, connected to the mounting part, enhances the local stiffness and tensile strength of the mounting part, ensuring that the second energy-absorbing box remains stably connected to the anti-collision beam body during collapse, preventing detachment or displacement. The second reinforcing member distributes the force on the mounting section to a wider area of ​​the anti-collision beam body, preventing the anti-collision beam body from breaking due to excessive local stress and increasing the reliability of the connection between the second energy-absorbing box and the anti-collision beam body.

[0017] In some embodiments, the mounting portion has a receiving space, and the second reinforcing member is disposed within the receiving space.

[0018] According to the aforementioned technical means, the inner wall of the accommodating space can be tightly fitted to the outer periphery of the second reinforcing member. In the event of a vehicle collision, the impact force transmitted from the second energy-absorbing box to the mounting part will be transferred to the second reinforcing member through the inner wall of the accommodating space. This means that the reinforcing member and the mounting part jointly bear the impact force, rather than the reinforcing member bearing the external force alone. This cooperative force-bearing further enhances the overall rigidity of the mounting part, preventing tearing or deformation due to unilateral force, and increasing reliability during a vehicle collision.

[0019] In some embodiments, the second energy-absorbing box is provided with a third connecting hole, the second reinforcing member is provided with a fourth connecting hole, the mounting part is provided with a fifth connecting hole, and the anti-collision beam assembly further includes a second fastener, which passes through the third connecting hole, the fourth connecting hole and the fifth connecting hole.

[0020] According to the above-mentioned technical means, the second energy-absorbing box, the second reinforcing member and the mounting part are connected by the second fastener. The three are fixed at the same fixed point. When a vehicle collision occurs, the second energy-absorbing box, the second reinforcing member and the mounting part can simultaneously bear the collision force, avoiding the loss or misalignment of the collision force at the connection link, and further improving the collision resistance.

[0021] During assembly, simply align the three holes of the second energy-absorbing box (third connecting hole), the second reinforcing member (fourth connecting hole), and the mounting part (fifth connecting hole), insert the second fastener, and tighten it, thus improving assembly efficiency. During maintenance, simply unscrew the second fastener to separate the second energy-absorbing box, the second reinforcing member, and the mounting part. If only the second energy-absorbing box is damaged, it can be directly removed and replaced; if only the second reinforcing member is deformed, it can be disassembled and replaced separately. When reassembling after maintenance, simply align the third, fourth, and fifth connecting holes and insert the new second fastener. The second energy-absorbing box, the second reinforcing member, and the mounting part will maintain their original positioning accuracy and connection strength, preventing structural weakening due to repeated disassembly and reassembly.

[0022] In some embodiments, a trailer component and a third reinforcement are also included, the third reinforcement being connected to the side of the anti-collision beam body facing away from the first energy-absorbing box, and the trailer component being connected to the third reinforcement.

[0023] According to the above technical means, the trailer component transmits the pulling force during towing (such as vehicle breakdown rescue, towing heavy objects). During towing, the pulling force of the trailer component acts first on the trailer component, and then is transmitted to the third reinforcement component through the trailer component. Since the third reinforcement component is connected to the outside of the anti-collision beam body, it can disperse the towing force from a local concentration point to a larger area of ​​the anti-collision beam body, avoiding tearing or deformation of the anti-collision beam body due to excessive local stress, and ensuring the stability of the front structure of the vehicle body during towing.

[0024] If the trailer component is damaged due to collision or long-term use, it can be disassembled and replaced separately through the connection of the third reinforcement to the anti-collision beam. This eliminates the need to repair or replace the entire anti-collision beam assembly, reducing maintenance costs. Only the small trailer component needs to be replaced, shortening maintenance time.

[0025] Secondly, embodiments of this application also provide a vehicle body that includes the anti-collision beam assembly of the first aspect.

[0026] Since the vehicle body structure provided in this application includes the anti-collision beam assembly in the first aspect, it can solve the same technical problems as the above-mentioned anti-collision beam assembly and achieve the same technical effects, it will not be described again here.

[0027] Thirdly, embodiments of this application also provide a vehicle that includes the body described in the second aspect above.

[0028] Since the vehicle provided in this application embodiment includes the body in the second aspect, it can solve the same technical problems as the above-mentioned body and achieve the same technical effects, so it will not be described again here. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0030] Figure 1 This is a structural schematic diagram of the anti-collision beam assembly provided in the embodiments of this application;

[0031] Figure 2 Examples of this application Figure 1 A schematic diagram of the connection between the first reinforcing member and the first energy-absorbing box in the anti-collision beam assembly shown;

[0032] Figure 3 Examples of this application Figure 1 A schematic diagram of the structure of the first energy-absorbing box in the anti-collision beam assembly shown;

[0033] Figure 4 Examples of this application Figure 1 The diagram shows the structure of the first reinforcing member in the anti-collision beam assembly.

[0034] Figure 5 Examples of this application Figure 1 A schematic diagram of the connection between the second energy-absorbing box and the second reinforcing member in the anti-collision beam assembly shown in the figure;

[0035] Figure 6 Examples of this application Figure 1 A schematic diagram of the mounting section in the anti-collision beam assembly shown;

[0036] Figure 7 Examples of this application Figure 1 The diagram shows the structure of the second energy-absorbing box in the anti-collision beam assembly.

[0037] Figure label:

[0038] 100 - Anti-collision beam assembly; 110 - Anti-collision beam body; 111 - Mounting part; 1111 - Accommodation space; 120 - First energy-absorbing box; 130 - First reinforcing member; 131 - Connecting part; 132 - Reinforcing part; 1321 - First reinforcing part; 1322 - Second reinforcing part; 1323 - Third reinforcing part; 140 - Second energy-absorbing box; 150 - Second reinforcing member; 160 - Trailer component; 170 - Third reinforcing member. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0043] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0044] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0045] Please see Figures 1 to 7 This application provides a vehicle. The vehicle can be a pure electric vehicle, a range-extended electric vehicle, a hybrid electric vehicle, a fuel cell electric vehicle, or a hydrogen engine vehicle, etc.

[0046] In some embodiments, the vehicle includes a body, which may include a frame and a crash beam assembly 100. The frame supports body panels, interior trim, and other components of the vehicle body. The crash beam assembly 100 is connected to the frame and is used to absorb collision energy in the event of a collision to mitigate damage to the vehicle.

[0047] In some examples, the frame may include longitudinal beams connecting the anti-collision beam assembly 100 and the front bulkhead of the vehicle body to form a supporting frame for the front engine compartment; that is, the longitudinal beams are front longitudinal beams. For example, there may be two longitudinal beams arranged along the width of the vehicle, both connecting the anti-collision beam assembly 100 and the front bulkhead.

[0048] In some embodiments, the anti-collision beam assembly 100 includes an anti-collision beam body 110, a first energy-absorbing box 120, and a first reinforcing member 130. The first energy-absorbing box 120 is connected to the anti-collision beam body 110. The first reinforcing member 130 includes a connecting portion 131 and a reinforcing portion 132 connected to the connecting portion 131. The connecting portion 131 is connected to the side of the first energy-absorbing box 120 away from the anti-collision beam body 110 and is adapted to connect to the longitudinal beam of the vehicle. The reinforcing portion 132 is located on the periphery of the first energy-absorbing box 120 and is connected to the energy-absorbing box.

[0049] One end of the connecting part 131 is connected to the first energy-absorbing box 120, and the other end of the connecting part 131 is connected to the longitudinal beam of the vehicle. That is, the connecting part 131 is located between the first energy-absorbing box 120 and the longitudinal beam of the vehicle. The connecting part 131 can distribute the force between the first energy-absorbing box 120 and the longitudinal beam of the vehicle.

[0050] Furthermore, by setting the reinforcing part 132 to be connected to the periphery of the first energy-absorbing box 120, the force of the first energy-absorbing box 120 is transferred to the reinforcing part 132, and then transferred to the longitudinal beam of the vehicle through the connecting part 131, forming a multi-level force transmission path. This avoids the first energy-absorbing box 120 from breaking due to excessive force at a single connection point. In the event of a vehicle collision, the first energy-absorbing box 120 can be prevented from detaching from the longitudinal beam and thus failing to deform and absorb energy, thereby improving the anti-collision effect of the anti-collision beam body 110, reducing the risk of deformation of the vehicle longitudinal beam, and reducing the degree of damage to the vehicle body.

[0051] In some examples, there are two first energy-absorbing boxes 120 and two first reinforcing members 130. Two first energy-absorbing boxes 120 are connected to both ends of the anti-collision beam body 110 in the width direction of the vehicle. One first energy-absorbing box 120 is connected between a first reinforcing member 130 and the anti-collision beam body 110, and one first reinforcing member 130 is connected between a first energy-absorbing box 120 and a longitudinal beam. The first energy-absorbing box 120 serves as an intermediate component connecting the anti-collision beam body 110 and the vehicle body longitudinal beam. In the event of a collision, the first energy-absorbing box 120 absorbs collision energy, reducing the impact force transmitted to the vehicle body longitudinal beam.

[0052] In some examples, one end of the reinforcement 132 is connected to the periphery of the first energy-absorbing box 120 away from the anti-collision beam body 110 by welding or detachment, and the other end of the first energy-absorbing box 120 is connected to the front end of the vehicle longitudinal beam.

[0053] In some examples, the connecting part 131 can be a plate-like structure, and the thickness direction of the connecting part 131 can be consistent with the length direction of the vehicle. In this way, the connecting part 131 can disperse the concentrated force transmitted by the first energy-absorbing box 120 into a surface load, effectively reducing the stress peak at the connection point between the first energy-absorbing box 120 and the longitudinal beam, and avoiding loosening or cracking due to stress concentration. In other examples, the connecting part 131 can also be a block-like structure, etc., and this application does not specifically limit it in this way.

[0054] In some examples, the first energy-absorbing box 120 is made of high-strength steel, such as Q460 steel, Q420B steel, Q550D steel, etc. Using high-strength steel for the first energy-absorbing box 120 ensures its strength, allowing it to better absorb collision energy when deformed.

[0055] In other examples, the first energy-absorbing box 120 may also be made of low-carbon steel.

[0056] In some examples, the cross-section of the anti-collision beam body 110 is H-shaped, which can maximize the contact area while ensuring its own rigidity, and evenly distribute the local impact load during the collision to the first energy-absorbing boxes 120 on both sides, avoiding premature breakage of the anti-collision beam body 110 due to excessive force at a single point.

[0057] In other examples, the surface of the first energy-absorbing box 120 can be corrugated, honeycomb, or trapezoidal groove structure, as long as it can enhance the absorption capacity of the first energy-absorbing box 120, which will not be elaborated here.

[0058] In some embodiments, the reinforcing portion 132 includes a first reinforcing portion 1321, a second reinforcing portion 1322, and a third reinforcing portion 1323. Along the height direction of the vehicle, the first reinforcing portion 1321 is connected to one side of the first energy-absorbing box 120, and the second reinforcing portion 1322 is connected to the other side of the first energy-absorbing box 120. Along the width direction of the vehicle, the third reinforcing portion 1323 is connected to one side of the first energy-absorbing box 120. In some examples, the third reinforcing portion 1323 is located on the outer side of the first energy-absorbing box 120 in the width direction of the vehicle.

[0059] Specifically, by providing a first reinforcing part 1321 and a second reinforcing part 1322 arranged along the vehicle height direction, and connecting the first reinforcing part 1321 and the second reinforcing part 1322 to both sides of the first energy-absorbing box 120 respectively, the first energy-absorbing box 120 can provide support and constraint to both sides along the vehicle height direction when the vehicle collides, preventing the first energy-absorbing box 120 from shifting in the vehicle height direction during the collision, ensuring that the first energy-absorbing box 120 can collapse and absorb energy in a preset direction, thereby improving the energy absorption efficiency of the first energy-absorbing box 120. A third reinforcing part 1323 is connected to one side of the first energy-absorbing box 120 along the vehicle width direction, and can support and constrain one side of the first energy-absorbing box 120 in the vehicle width direction, thereby further improving the energy absorption efficiency of the first energy-absorbing box 120.

[0060] The third reinforcing part 1323, together with the first reinforcing part 1321 and the second reinforcing part 1322, forms a stable frame structure that can better cope with collision forces from different directions. When a collision occurs, it can effectively transfer the collision force from the first energy-absorbing box 120 to the vehicle's longitudinal beam, so that the collision force can be more evenly distributed and transferred throughout the entire anti-collision beam assembly 100, thereby improving the structural strength of the entire anti-collision beam assembly 100 and enhancing its anti-collision effect.

[0061] In some examples, the first reinforcing part 1321, the second reinforcing part 1322, and the third reinforcing part 1323 are all plate-like structures. The first reinforcing part 1321, the second reinforcing part 1322, and the third reinforcing part 1323 define a mounting groove. The first energy-absorbing box 120 is located in the mounting groove. When the vehicle hits the obstacle, the first reinforcing part 1321 and the second reinforcing part 1322 constrain the vertical displacement and torsion of the first energy-absorbing box 120, and the third reinforcing part 1323 resists the lateral force. The frame structure formed by the three can convert the multidimensional collision force into a dispersed force along the frame, avoid a single component bearing an excessive load, make the stress distribution of the entire anti-collision beam assembly 100 more uniform, and improve the structural strength.

[0062] In other examples, the first reinforcing part 1321, the second reinforcing part 1322 and the third reinforcing part 1323 can also be a frame structure or a column structure, which will not be described in detail here.

[0063] In some other embodiments, the reinforcing part may include only one or two of the first reinforcing part 1321, the second reinforcing part 1322 and the third reinforcing part 1323, which can also improve the energy absorption efficiency of the first energy absorption box 120.

[0064] In some embodiments, the reinforcing part 132 and the first energy-absorbing box 120 are detachably connected. After a collision, the damage to the anti-collision beam assembly 100 is usually concentrated in the first energy-absorbing box 120. The detachable connection between the reinforcing part 132 and the first energy-absorbing box 120 facilitates the removal and installation of the first energy-absorbing box 120. If only the first energy-absorbing box 120 collapses, only the first energy-absorbing box 120 needs to be replaced; this reduces parts waste, lowers maintenance costs, shortens maintenance time, and makes disassembly and assembly more convenient.

[0065] In some examples, both the reinforcing part 132 and the first energy-absorbing box 120 can be provided with flange structures so that the flange structure of the reinforcing part 132 and the flange structure of the first energy-absorbing box 120 can be connected, so that the two flange structures fit tightly and improve the connection effect between the reinforcing part 132 and the first energy-absorbing box 120.

[0066] In some examples, a buffer pad can be installed between the reinforcing part 132 and the first energy-absorbing box 120. The buffer pad can fill the gap between the reinforcing part 132 and the first energy-absorbing box 120, reducing metal impact noise when the vehicle is in motion. At the same time, in the initial stage of the collision, the elastic deformation of the pad can slow down the transmission speed of the impact force, avoid excessive instantaneous stress peak, and protect the connection structure.

[0067] In some embodiments, the reinforcing part 132 is provided with a first connecting hole, the first energy-absorbing box 120 is provided with a second connecting hole, and the anti-collision beam assembly 100 further includes a first fastener, which passes through the first connecting hole and the second connecting hole. By connecting the first connecting hole and the second connecting hole with the provided first fastener, the first energy-absorbing box 120 and the reinforcing part 132 are connected, which can prevent the first fastener from loosening due to vibration during long-term vehicle operation and ensure the reliability of the connection under daily use and collision.

[0068] Furthermore, disassembly only requires unscrewing the first fastener to separate the reinforcing part 132 and the first energy-absorbing box 120. Assembly simply involves aligning the first and second connecting holes, inserting the first fastener, and tightening it, reducing operational difficulty. Moreover, the disassembly and assembly of the first fastener will not damage the first energy-absorbing box 120 or the reinforcing part 132. If temporary disassembly and inspection are required during maintenance, the first fastener can be reassembled after inspection, reducing waste of parts.

[0069] In some examples, the first fastener may be a bolt, a pin, etc., which will not be described in detail here.

[0070] In some examples, the number of first connecting holes can be one or more. In some examples, the first reinforcing part 1321, the second reinforcing part 1322, and the third reinforcing part 1323 are all provided with first connecting holes.

[0071] In some other embodiments, the reinforcing part 132 and the first energy-absorbing box 120 can also be connected by a detachable connection method such as snap-fit.

[0072] In some other embodiments, the reinforcing part 132 and the first energy-absorbing box 120 may also be non-detachably connected, for example, by welding.

[0073] In some embodiments, the anti-collision beam body 110 further includes a second energy-absorbing box 140 and a second reinforcing member 150. The anti-collision beam body 110 also includes a mounting portion 111. For example, the anti-collision beam body 110 may include a main body section and two inclined sections. The two inclined sections are respectively connected to the two ends of the main body section in the vehicle width direction, and two first energy-absorbing boxes 120 are connected to the main body section. The inclined sections form the aforementioned mounting portion 111. The inclined sections extend towards the rear of the vehicle at a gradually inclined angle relative to the main body section, along the direction from the main body section to the inclined sections.

[0074] The second energy-absorbing box 140 is connected to the mounting portion 111 on the side facing the first energy-absorbing box 120. The second energy-absorbing box 140 is located outside the first energy-absorbing box 120 in the vehicle width direction. In some examples, there may be two second energy-absorbing boxes 140, with one second energy-absorbing box 140 connected to one mounting portion 111. Furthermore, the two first energy-absorbing boxes 120 are located between the two second energy-absorbing boxes 140.

[0075] The first energy-absorbing box 120 is located between the two second energy-absorbing boxes 140. The first energy-absorbing box 120 is positioned in the core area along the width of the vehicle, while the second energy-absorbing boxes 140 are positioned outside the first energy-absorbing box 120. This extends the energy-absorbing area along the width of the vehicle, covering areas that the first energy-absorbing box 120 cannot reach. When a side collision occurs, the impact force will first act on the outer second energy-absorbing box 140, avoiding structural damage to the vehicle due to blind spots. The first energy-absorbing box 120 and the second energy-absorbing box 140 form a multi-stage energy absorption system. When the impact force acts on the outer front of the vehicle, it will preferentially trigger the collapse of the second energy-absorbing box 140. The remaining energy will be transferred to the inner first energy-absorbing box 120, where it will be further absorbed by the collapse, thus more fully dissipating the impact energy and reducing the risk of occupant injury.

[0076] The second reinforcing member 150 is connected to the mounting portion 111. By connecting to the mounting portion 111, the second reinforcing member 150 enhances the local stiffness and tensile strength of the mounting portion 111, ensuring that the second energy-absorbing box 140 remains stably connected to the anti-collision beam body 110 during collapse, preventing detachment or displacement. The second reinforcing member 150 distributes the force on the mounting portion 111 to a wider area of ​​the anti-collision beam body 110, preventing the anti-collision beam body 110 from breaking due to excessive local stress, and increasing the reliability of the connection between the second energy-absorbing box 140 and the anti-collision beam body 110.

[0077] In some embodiments, the mounting portion 111 has a receiving space 1111, and the second reinforcing member 150 is disposed within the receiving space 1111. For example, the second reinforcing member 150 can be a plate-like structure, a square cylindrical structure, etc., and this application does not specifically limit this. The inner wall of the receiving space 1111 can be tightly fitted to the outer periphery of the second reinforcing member 150. When a vehicle collision occurs, the collision force transmitted from the second energy-absorbing box 140 to the mounting portion 111 will be transmitted to the second reinforcing member 150 through the inner wall of the receiving space 1111. This is equivalent to the reinforcing member and the mounting portion 111 jointly bearing the collision force, rather than the reinforcing member bearing the external force alone. This cooperative force-bearing can further improve the overall rigidity of the mounting portion 111, preventing the mounting portion 111 from tearing or deforming due to unilateral force, and increasing the reliability during a vehicle collision.

[0078] In some other embodiments, the second reinforcing member 150 may also be disposed on the outside of the mounting portion 111. The second reinforcing member 150 may be a U-shaped structure that covers the outer peripheral surface of the mounting portion 111. When the vehicle is involved in an offset collision, the second energy-absorbing box 140 is prone to displacement to the side. At this time, the outer second reinforcing member 150 can form a lateral support through a rigid connection with the anti-collision beam body 110, thereby preventing the mounting portion 111 from undergoing outward deformation due to unilateral force and ensuring that the second energy-absorbing box 140 always maintains coaxiality with the anti-collision beam body 110 during the collapse process, thus improving the energy absorption efficiency.

[0079] In some examples, the second reinforcing member 150 may also be a sheet-like structure that covers the outer side of the mounting part 111 and connects to the second energy-absorbing box 140 to increase the connection strength, which will not be described in detail here.

[0080] In some embodiments, the second energy-absorbing box 140 is provided with a third connecting hole, the second reinforcing member 150 is provided with a fourth connecting hole, and the mounting part 111 is provided with a fifth connecting hole. The anti-collision beam assembly 100 also includes a second fastener, which passes through the third, fourth, and fifth connecting holes. The second fastener connects the second energy-absorbing box 140, the second reinforcing member 150, and the mounting part 111. The three are fixed together by the same second fastener, which allows the second energy-absorbing box 140, the second reinforcing member 150, and the mounting part 111 to simultaneously bear the impact force when a vehicle collision occurs, avoiding loss or misalignment of the impact force at the connection points, and further improving the anti-collision capability.

[0081] When assembling the second energy-absorbing box 140 with the mounting part 111 of the anti-collision beam body 110, simply align the three holes of the second energy-absorbing box 140 (third connecting hole), the second reinforcing member 150 (fourth connecting hole), and the mounting part 111 (fifth connecting hole), insert the second fastener, and tighten it. This improves assembly efficiency. During maintenance, simply unscrew the second fastener to separate the second energy-absorbing box 140, the second reinforcing member 150, and the mounting part 111. If only the second energy-absorbing box 140 is damaged, it can be directly removed and replaced; if only the second reinforcing member 150 is deformed, it can be disassembled and replaced separately. When reassembling after maintenance, simply align the third, fourth, and fifth connecting holes and insert the new second fastener. The second energy-absorbing box 140, the second reinforcing member 150, and the mounting part 111 can still maintain their original positioning accuracy and connection strength, avoiding structural weakening due to repeated disassembly and reassembly.

[0082] In some examples, the second fastener may have the same structure as the first fastener, which will not be described in detail here.

[0083] In some embodiments, the anti-collision beam body 110 further includes a trailer hitch 160 and a third reinforcing member 170. The third reinforcing member 170 is connected to the side of the anti-collision beam body 110 facing away from the first energy-absorbing box 120, and the trailer hitch 160 is connected to the third reinforcing member 170. The trailer hitch 160 is used to tow other vehicles. The trailer hitch 160 transmits the pulling force during towing (such as vehicle breakdown rescue or towing heavy objects). During towing, the pulling force of the trailer hitch 160 is first applied to the trailer hitch 160 and then transmitted to the third reinforcing member 170. Since the third reinforcing member 170 is connected to the outside of the anti-collision beam body 110, it prevents the anti-collision beam body 110 from tearing or deforming due to excessive local stress, ensuring the stability of the front structure of the vehicle body during towing.

[0084] If the trailer component 160 is damaged due to collision or long-term use, it can be disassembled and replaced separately through the connection of the third reinforcement 170 to the anti-collision beam. This eliminates the need to repair or replace the entire anti-collision beam assembly 100, reducing maintenance costs. Only the small trailer component 160 needs to be replaced, which also shortens maintenance time.

[0085] In some examples, trailer part 160 may be a trailer hook, or trailer part 160 may include a trailer bar and a trailer ring attached to the trailer bar.

[0086] In some examples, the third reinforcement 170 can be a plate-like structure, a block-like structure, etc.

[0087] In some examples, the third reinforcement 170 is made of 6082 aluminum alloy through extrusion and machining. The trailer component 160, the third reinforcement 170, and the anti-collision beam body 110 are connected by double-layer CO2 shielded welding. When towing, vehicle bumps can cause the bolted connections to vibrate and loosen, while the welded joint is a permanent connection with no gaps or possibility of loosening, avoiding the safety hazard of the trailer component 160 falling off due to joint breakage.

[0088] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0089] The application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the application to the described embodiments. Furthermore, those skilled in the art will understand that the application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application.

Claims

1. A crash beam assembly, characterized in that, For use in vehicles, the anti-collision beam assembly (100) includes: The main body of the anti-collision beam (110); The first energy-absorbing box (120) is connected to the anti-collision beam body (110); The first reinforcing member (130) includes a connecting portion (131) and a reinforcing portion (132) connected to the connecting portion (131). The connecting portion (131) is connected to the side of the first energy-absorbing box (120) away from the anti-collision beam body (110) and is adapted to connect to the longitudinal beam of the vehicle. The reinforcing part (132) is located on the periphery of the first energy-absorbing box (120) and is connected to the energy-absorbing box.

2. The anti-collision beam assembly according to claim 1, characterized in that, The reinforcing part (132) includes a first reinforcing part (1321), a second reinforcing part (1322), and a third reinforcing part (1323). Along the height direction of the vehicle, the first reinforcing part (1321) is connected to one side of the first energy-absorbing box (120), and the second reinforcing part (1322) is connected to the other side of the first energy-absorbing box (120). Along the width direction of the vehicle, the third reinforcing part (1323) is connected to one side of the first energy-absorbing box (120).

3. The anti-collision beam assembly according to claim 1, characterized in that, The reinforcing part (132) and the first energy-absorbing box (120) are detachably connected.

4. The anti-collision beam assembly according to claim 1, characterized in that, The reinforcing part (132) is provided with a first connecting hole, the first energy-absorbing box (120) is provided with a second connecting hole, and the anti-collision beam assembly (100) further includes a first fastener, which passes through the first connecting hole and the second connecting hole.

5. The anti-collision beam assembly according to any one of claims 1-4, characterized in that, It also includes a second energy-absorbing box (140) and a second reinforcing member (150). The anti-collision beam body (110) also includes a mounting part (111). The second energy-absorbing box (140) is connected to the mounting part (111) on the side facing the first energy-absorbing box (120). The second energy-absorbing box (140) is located outside the first energy-absorbing box (120) in the vehicle width direction. The second reinforcing member (150) is connected to the mounting part (111).

6. The anti-collision beam assembly according to claim 5, characterized in that, The mounting part (111) is provided with a receiving space (1111), and the second reinforcing member (150) is disposed in the receiving space (1111).

7. The anti-collision beam assembly according to claim 5, characterized in that, The second energy-absorbing box (140) is provided with a third connecting hole, the second reinforcing member (150) is provided with a fourth connecting hole, the mounting part (111) is provided with a fifth connecting hole, and the anti-collision beam assembly (100) also includes a second fastener, which passes through the third connecting hole, the fourth connecting hole and the fifth connecting hole.

8. The anti-collision beam assembly according to any one of claims 1-4, characterized in that, It also includes a trailer part (160) and a third reinforcement (170), the third reinforcement (170) being connected to the side of the anti-collision beam body (110) facing away from the first energy-absorbing box (120), and the trailer part (160) being connected to the third reinforcement (170).

9. A vehicle body, characterized in that, The anti-collision beam assembly (100) includes any one of claims 1-8.

10. A vehicle, characterized in that, Includes the vehicle body as described in claim 9.

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