Anti-collision beam, anti-collision beam assembly and vehicle

Abstract

The invention discloses an anti-collision beam, an anti-collision beam assembly and a vehicle, and belongs to the technical field of vehicle engineering. The anti-collision beam comprises a plurality of energy absorption modules arranged on a base in an array mode, and the adjacent energy absorption modules are connected. The energy absorption module comprises two side plates symmetrically and vertically arranged on the base, and each side plate comprises a first plate body and a second plate body which are arranged at an included angle and incline towards the inner side of the energy absorption module. The cover plate is connected to the tops of the two side plates, a hollow box-shaped structure is defined by the cover plate, the two side plates and the base, and the cover plate comprises a third plate body and a fourth plate body which are arranged at an included angle and incline towards the outer side of the box-shaped structure. According to the anti-collision beam, the anti-collision beam assembly, the vehicle anti-collision beam, the anti-collision beam assembly and the vehicle, the collision collapse reliability and stability can be improved, and the collision protection performance of the vehicle is improved.

Description

Technical Field

[0001] This application belongs to the field of vehicle engineering technology, and in particular relates to a crash beam, a crash beam assembly, and a vehicle. Background Technology

[0002] The front bumper beam is a key barrier in a vehicle's passive safety system, used to absorb forward side impacts and disperse and weaken some of the impact energy to protect the vehicle's equipment and occupants. Especially for new energy vehicles, where electrical equipment such as motors are typically located on the front side of the vehicle, the space available for installing the bumper beam is limited, and higher requirements are placed on the energy absorption performance and reliability of the bumper beam.

[0003] Currently, most mainstream front bumper beam designs employ a closed-section structure (such as rectangular or bow-shaped) formed from hot-formed steel sheets in one piece or roll-formed. While this type of closed-section bumper beam has a simple structure and requires little space for assembly, its energy absorption capacity is limited, and its specific energy absorption (energy absorbed per unit mass) is not high. When the collision energy is high, it may not be able to fully dissipate the energy, resulting in excessive transfer of collision force to the passenger compartment. On the other hand, closed-section bumper beams have poor crush stability. During a collision, they may experience instantaneous instability or abrupt collapse (such as Euler buckling or local tearing). This can lead to drastic fluctuations in the collision reaction curve (excessively high peak value or sudden drop), a phenomenon known as "sudden drop in energy absorption." This not only reduces the overall energy absorption efficiency but also makes the subsequent matching design of energy absorption boxes and longitudinal beams more difficult, hindering systematic collision energy management.

[0004] Therefore, there is an urgent need for a new type of front bumper beam structure that can significantly improve energy absorption capacity and ensure stable force values ​​and controllable crushing modes during the collision process within the same compact layout space. Summary of the Invention

[0005] This application provides a front bumper beam, a front bumper beam assembly, and a vehicle, aiming to at least partially solve the technical problems of limited energy absorption capacity and poor crush stability of front bumper beams in vehicles with compact layouts. Therefore,

[0006] In one aspect of this application, a crash beam is provided, comprising a plurality of energy-absorbing modules arranged in an array on a base, wherein adjacent energy-absorbing modules are connected. The energy absorption module includes: Two side plates are arranged opposite each other on the base; A cover plate is connected to the top of the two side plates, and the cover plate, the two side plates, and the base form a hollow box-shaped structure; The side plate includes a first plate and a second plate that are angled together and inclined toward the inside of the box-shaped structure; The cover plate includes a third plate and a fourth plate that are angled together and inclined to the outside of the box-shaped structure. The two sides of the third plate are respectively connected to the top of the first plate of the two side plates, and the two sides of the fourth plate are respectively connected to the top of the second plate of the two side plates.

[0007] In some embodiments, the first plate and the second plate in the side panel are integrally bent into shape.

[0008] In some embodiments, the third plate and the fourth plate in the cover plate are integrally bent into shape.

[0009] In some embodiments, the angle between the first plate and the second plate is an obtuse angle, and the angle between the third plate and the fourth plate is an obtuse angle.

[0010] In some embodiments, the width direction of the energy-absorbing module is parallel to the relative direction of the two side plates, the height direction of the energy-absorbing module is parallel to the relative direction of the cover plate and the base, and the length direction is perpendicular to the height and width directions. The plurality of energy-absorbing modules are arranged along the length direction and the width direction.

[0011] In some embodiments, in the length direction, the two ends of the side plate are provided with welding portions, and the opposite side plates in adjacent energy-absorbing modules are fixedly connected by the welding portions.

[0012] In some embodiments, reinforcing plates are also provided on both sides of the anti-collision beam in the width direction.

[0013] In some embodiments, the reinforcing plate and the adjacent side plate are symmetrically disposed on the base.

[0014] In some embodiments, the two side plates and the cover plate of the energy-absorbing module are integrally formed; In some embodiments, the plurality of energy-absorbing modules are integrally formed.

[0015] In some embodiments, the first connecting line between the first plate and the second plate, and the second connecting line between the third plate and the fourth plate are located in the same plane.

[0016] In some embodiments, the first connecting line and the second connecting line are perpendicular.

[0017] Another aspect of this application embodiment also provides a crash beam assembly, including the aforementioned crash beam, energy-absorbing box, and mounting base; The base is connected to the mounting base via the energy-absorbing box.

[0018] In another aspect of this application, a vehicle is also provided, including the aforementioned anti-collision beam assembly.

[0019] The embodiments of this application have at least the following beneficial effects: The anti-collision beam, anti-collision beam assembly, and vehicle provided in this application embodiment construct a distributed load and coordinated deformation system by arranging multiple interconnected energy-absorbing modules in an array on the base. This effectively avoids local concentration of impact loads and overall structural instability and fracture, ensuring the continuity and reliability of the energy transfer path. Each energy-absorbing module adopts a specific box-shaped structure enclosed by an inner inclined side plate and an outer inclined cover plate. This structure decomposes the positive impact force into controllable components that induce the side plate to retract inward and the cover plate to arch, thereby converting the impact energy into ordered structural deformation energy. At the same time, the specific shape of the cover plate and the side plate, as well as the connection relationship at specific edges, ensure that when the anti-collision beam is subjected to overall bending force, the shape of the cover plate with fixed ends and outward protrusion in the middle can guide the energy-absorbing module to fold and compress upward, while the ends are fixedly connected to the ends of adjacent cover plates. Thus, the top surface of the anti-collision beam can only be compressed upward and cannot be crushed. This effect generates vertical tension in the side panels (middle section), which maintains the cross-sectional height of the crash beam to achieve a continuous large reaction force response. This ensures the crash beam's structure can undergo continuous and gradual deformation, guaranteeing the stability and reliability of its crashworthiness. The combination of the overall structural layout and the local structure of the energy-absorbing modules enables the crash beam to be controlled throughout the entire process, from collision contact and stable energy absorption to efficient rearward energy transfer. This fundamentally overcomes the shortcomings of traditional beams, such as destructive collapse and interruption of force flow, improving the reliability and stability of its impact resistance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the anti-collision beam in an embodiment of this application is shown; Figure 2 It shows Figure 1 A schematic diagram of the array arrangement of energy-absorbing modules in the anti-collision beam; Figure 3 It shows Figure 2 Main view of the energy absorption module in the middle; Figure 4 It shows Figure 2 A top view of the deployed energy-absorbing module in the middle; Figure 5 It shows Figure 2 A schematic diagram of the deformation energy absorption principle of the energy absorption module in the diagram; Figure 6 It shows Figure 1 A schematic diagram of the folding process of the energy-absorbing module of the anti-collision beam in the middle; Figure 7 A schematic diagram of the anti-collision beam assembly in an embodiment of this application is shown.

[0022] Figure label: 1-Bumper beam, 11-Base, 12-Energy absorption module, 12a-Panel blank, 121-Side plate, 121a-Welding part, 1211-First plate, 1212-Second plate, 1213-First connecting fold line, 1221-Third plate, 1222-Fourth plate, 1223-Second connecting fold line, 13-Reinforcing plate; 2-Energy Absorbing Box; 3-Mounting base. Detailed Implementation

[0023] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0025] This application is described below with reference to the accompanying drawings and specific embodiments: Most mainstream front bumper beam designs employ a closed-section structure (such as rectangular or bow-shaped) formed from hot-formed steel sheets in one piece or roll-formed. These closed-section bumper beams have limited energy absorption capacity; when collision energy is high, they may not be able to fully dissipate energy, posing a risk of protective failure. Furthermore, closed-section bumper beams have poor crush stability; during a collision, they may experience instantaneous instability or abrupt collapse, resulting in a "sudden drop in energy absorption." This not only reduces overall energy absorption efficiency but also makes the subsequent matching design of energy-absorbing boxes and longitudinal beams more difficult, hindering systematic collision energy management.

[0026] Therefore, this application provides a front bumper beam, a front bumper beam assembly, and a vehicle, aiming to address the technical problem of limited energy absorption capacity and poor crush stability of the front bumper beam within a limited space, thereby improving the energy absorption reliability of the front bumper beam in a confined space.

[0027] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the anti-collision beam 1 is part of the vehicle's anti-collision beam assembly and is used to directly withstand external impacts. The anti-collision beam 1 is connected to the vehicle's beam structure via an energy-absorbing box 2 and a mounting base 3 to transmit impact energy. During a collision, the anti-collision beam 1 should be able to maintain the stability of the force transmission structure and path, ensuring that impact energy is stably and continuously transmitted to the energy-absorbing box 2. Therefore, the anti-collision beam 1 should possess a certain degree of resistance to crumple zone damage and energy dispersion capability to efficiently disperse energy when subjected to instantaneous high-energy impacts, thereby preventing excessive energy concentration and localized violent damage to the beam structure.

[0028] The anti-collision beam 1 is a beam structure with a certain length, height, and thickness. Its length direction is approximately consistent with the width direction of the vehicle, its height direction is approximately consistent with the height direction of the vehicle, and its thickness direction is approximately consistent with the length direction of the vehicle. When the anti-collision beam 1 is subjected to a collision impact, the deformation of the anti-collision beam 1 is mainly manifested as bending along the thickness direction of the beam, and an unavoidable deformation of a certain magnitude along the height direction.

[0029] The anti-collision beam 1 includes a base 11 and multiple energy-absorbing modules 12. The multiple energy-absorbing modules 12 are arranged in an array on the base 11, and adjacent energy-absorbing modules 12 are closely connected. Generally, the horizontal and vertical directions of the array arrangement of the energy-absorbing modules 12 are approximately equal to the length and width directions of the base 11. That is, in the length direction of the base 11, multiple energy-absorbing modules 12 can be arranged adjacently in a row; in the width direction of the base 11, multiple energy-absorbing modules 12 can be arranged adjacently in a column. Of course, the arrangement direction of the multiple energy-absorbing modules 12 may not be in accordance with the length and width directions of the base 11, and this application does not impose specific restrictions; for ease of explanation, this application uses the arrangement direction of the multiple energy-absorbing modules 12 as the length and width directions of the base 11 as an example for illustration.

[0030] The anti-collision beam 1 is fixed to the plurality of energy-absorbing modules 12 by the base 11, and adjacent energy-absorbing modules 12 are closely connected. Thus, in the event of a collision, the collision energy can be transferred and dispersed from the collision point through the connection between the energy-absorbing modules 12 and the base 11, preventing the collision energy from concentrating in a localized area and causing destructive instantaneous deformation. This maintains the gradual and stable deformation of the anti-collision beam 1 as a whole, thereby stably dispersing and transmitting collision energy and maintaining the stability of the force transmission structure. Simultaneously, relying on the base 11, the plurality of energy-absorbing modules 12 can maintain stable position and connection posture, thus stably absorbing impact energy and smoothly dispersing it to achieve continuous stable deformation, improving the anti-collision stability and reliability of the anti-collision beam.

[0031] The energy-absorbing module 12 can form a box-shaped structure with a closed cross section based on the base 11. That is, the energy-absorbing module 12 can include two side plates 121 and a cover plate 122. The two side plates 121 have the same structural shape and are arranged opposite to each other on the base 11. The cover plate 122 is connected to the top of the two side plates 121. Thus, the two side plates 121, the base 11 and the cover plate 122 form a box-shaped structure with a closed cross section, which has a stable pressure-bearing structure during collision, reduces the collapse and disintegration speed to a certain extent and avoids the risk of instantaneous damage.

[0032] To further improve the energy absorption and crumple resistance of the energy-absorbing module, both the side plate 121 and the cover plate 122 can be configured as bent plates; and the side plate 121 is recessed inward towards the box-shaped structure, while the cover plate 122 protrudes outward towards the box-shaped structure, so as to guide the orderly crumple deformation of the energy-absorbing module 12 through the connecting fold lines of the bent plates, thereby avoiding disorderly damage under impact.

[0033] Specifically, the side plate 121 includes a first plate 1211 and a second plate 1212, which are arranged at an angle. The first plate 1211 and the second plate 1212 are both placed on the base 11, so that the contact edge between the side plate 121 and the base 11 forms a triangle-like shape, thereby achieving a stable placement. When subjected to positive impact pressure, the side plate 121 can maintain a stable vertical support state, which helps to maintain structural stability and resistance to deformation.

[0034] The cover plate 122 includes a third plate 1221 and a fourth plate 1222, which are arranged at an angle to form an arch shape away from the base 11. The two sides of the third plate 1221 are connected to the top of the first plate 1211 of the two side plates 121, and the two sides of the fourth plate 1222 are connected to the top of the second plate 1212 of the two side plates 121.

[0035] When the anti-collision beam 1 is impacted, the base 11 restricts the movement of the energy-absorbing module 12, thereby generating continuous and gradual mutual compression between the energy-absorbing modules 12. This allows for orderly energy-absorbing deformation through the relatively close folding process of the third plate 1221 and the fourth plate 1222, as well as the relatively close folding process of the first plate 1211 and the second plate 1212, thus maintaining the stability and reliability of the load-bearing performance of the anti-collision beam 1. The box-shaped structure with bent sidewalls and top cover can decompose the positive impact force into controllable components that induce the side panels to shrink inward and the cover to arch, thereby converting the impact energy into ordered structural deformation energy. At the same time, the specific shape of the cover and side panels and their connection relationship at specific edges ensure that when the anti-collision beam is subjected to overall bending force, the fixed end of the cover and the outward protrusion of the middle can guide the energy-absorbing module to fold and compress upward, while the end is fixedly connected to the end of the adjacent cover. Thus, the top surface of the anti-collision beam can only be compressed upward and cannot be crushed, which helps to maintain the stability of the load-bearing performance of the anti-collision beam 1 and maintain the reliability of impact energy dispersion and transmission.

[0036] In some embodiments, in order to improve the structural reliability of the side plate 121 under load, the side plate 121 can be formed by bending, that is, the first plate 1211 and the second plate 1212 are integrally formed, so that the stress distribution is more uniform when subjected to static pressure or cyclic pressure, and the risk of failure from the connection point is avoided.

[0037] In some embodiments, in order to improve the structural reliability of the cover plate 122 under load, the cover plate 122 can be formed by bending, that is, the third plate 1221 and the fourth plate 1222 are integrally formed, so that the stress distribution is more uniform when subjected to static pressure or cyclic pressure, and the risk of failure from the connection point is avoided.

[0038] In some embodiments, in order to obtain greater energy absorption performance while taking into account axial stiffness, the included angle between the first plate 1211 and the second plate 1212 can be set to an obtuse angle, and the included angle between the third plate 1221 and the fourth plate 1222 can also be set to an obtuse angle.

[0039] Generally, the included angle between the first plate 1211 and the second plate 1212 can be set between 90 degrees and 150 degrees.

[0040] In some embodiments, considering that the energy-absorbing modules 12 are arrayed on the base 11, and that the anti-collision beam 1 mainly exhibits concave deformation when impacted, thus converging and compressing inward in the length and width directions, the first plate 1211 and the second plate 1212 can be arranged along the length direction of the anti-collision beam 1. This allows the side plate 121 to naturally bend along the connecting fold line of the first plate 1211 and the second plate 1212 and contract into the box-shaped structure when the anti-collision beam 1 undergoes overall concave deformation, thereby absorbing impact energy and maintaining the main body shape of the side plate 121 to a certain extent. This helps maintain the overall structural shape of the energy-absorbing module 12 and reduces the risk of structural collapse.

[0041] Similarly, the third plate 1221 and the fourth plate 1222 in the cover plate 122 can also be arranged approximately along the length of the anti-collision beam 1. Thus, when the anti-collision beam 1 undergoes an overall concave deformation, the cover plate 122 can naturally bend along the connecting fold line of the third plate 1221 and the fourth plate 1222 and arch outwards towards the box-shaped structure, thereby absorbing impact energy and maintaining the main body shape of the cover plate 122 to a certain extent. This helps to maintain the overall structural shape of the energy-absorbing module 12 and reduces the risk of structural collapse.

[0042] In some embodiments, the first plate 1211 and the second plate 1212 have the same shape and specifications, and the third plate 1221 and the fourth plate 1222 have the same shape and specifications, thereby achieving uniform deformation of the side plate 121 and the cover plate 122.

[0043] Accordingly, the third plate 1221 and the fourth plate 1222 are isosceles bodies, and the second connecting fold line 1223 is the short side.

[0044] In some embodiments, the energy-absorbing module 12 is generally block-shaped, the width direction of the energy-absorbing module 12 is parallel to the relative direction of the two side plates 121, the height direction of the energy-absorbing module 12 is parallel to the relative direction of the cover plate and the base, and the length direction of the energy-absorbing module 12 is perpendicular to the width and height directions of the energy-absorbing module 12.

[0045] To fully utilize the bending energy absorption performance of the side plates 121 and the cover plate 122 of the energy-absorbing module 12, the plurality of energy-absorbing modules 12 can be arranged adjacently in an array along the length and width directions of the energy-absorbing module 12. When the anti-collision beam 1 is subjected to a collision impact, it can compress the plurality of energy-absorbing modules 12 along the length direction of the energy-absorbing module array, thereby compressing the cover plate 122 and the side plates 121, achieving stable and orderly deformation, fully utilizing the energy absorption and shape retention capabilities of the energy-absorbing modules 12, ensuring the stability of the mechanical structure of the anti-collision beam, and thus fully absorbing energy and transferring the impact energy to the energy-absorbing box 2.

[0046] In other words, the length direction of the energy-absorbing module 12 can be roughly consistent with the length direction of the base 11 of the anti-collision beam 1, that is, the length direction of the energy-absorbing module 12, the length direction of the array of energy-absorbing modules 12 and the length direction of the base 11 of the anti-collision beam 1 are roughly consistent.

[0047] The height h of the energy-absorbing module 12 of the anti-collision beam 1 is [not specified]. b The height d of the side plate 121 is the sum of the height of the cover plate 122. The length of the first connecting fold line 1213 is also d. The bottom edge lengths of the first plate 1211 and the second plate 1212 are both a, and the corresponding waist lengths of the third plate 1221 and the fourth plate 1222 are also a. The short side lengths of the third plate 1221 and the fourth plate 1222 and the length of the second connecting fold line are both b1, and the long side lengths of the third plate 1221 and the fourth plate 1222 are b. The included angle between two adjacent first plates 1211 is 2α, and the maximum distance between two adjacent side plates 121 of two adjacent energy-absorbing modules 12 (the distance between the two first connecting fold lines 1213) is g. The included angle θ between the third plate 1221 and the fourth plate 1222 and the base plane of the base 11. The width c of the welded part 121a.

[0048] Where θ = arcsin(tanα), , g=2asinα, b1=bg.

[0049] The length of the energy-absorbing module 12 is 2acosαcosθ+c; the width of the energy-absorbing module 12 is b.

[0050] In some embodiments, in order to establish a reliable connection between the plurality of energy-absorbing modules 12, adjacent energy-absorbing modules 12 may be connected by partial welding.

[0051] Considering that the central areas of the side plate 121 and the cover plate 122 need to undergo significant deformation, in order to reduce the impact on the orderly deformation of the side plate 121 and the cover plate 122, the connecting part of the side plate 121 and the cover plate 122 can be set in the edge area of ​​the cover plate 122.

[0052] Generally, the connection portions of the cover plate 122 and the side plate 121 are respectively their edge regions. The connection region between the side plate 121 and the base 11 is also located on the edge of the side plate 121. The connection region of the adjacent cover plate 122 is also located on the edge of the cover plate 122; the connection region of the adjacent side plate 121 is also located on the edge of the side plate 121.

[0053] In some embodiments, in order to weld and fix adjacent energy-absorbing modules 12, the ends of the opposite side plates 121 of adjacent energy-absorbing modules 12 are provided with welding portions 121a for fixing adjacent energy-absorbing modules 12.

[0054] In other words, in the length direction of the energy-absorbing module 12, the two ends of the side plate 121 serve as the welding parts 121a of the adjacent energy-absorbing modules 12; at the same time, in the width direction of the energy-absorbing module 12, the outer side of the end of the side plate 121 can also serve as the welding parts 121a of the adjacent energy-absorbing modules 12.

[0055] In the length direction of the energy-absorbing module 12, the ends of the side plates 121 can be joined by splicing welding. In the width direction of the energy-absorbing module 12, the ends of the side plates 121 of two adjacent energy-absorbing modules can be fixed by resistance welding or other methods.

[0056] In some embodiments, to improve the connection reliability and load-bearing performance between the cover plate 122 and the side plates 121 of the energy-absorbing module 12, the cover plate 122 and the two side plates 121 can be integrally formed. The energy-absorbing module 12 can be formed from a single sheet material through processes such as stamping and bending along a predetermined fold line or boundary to create a specific shaped sheet, which is then appropriately bent and shaped to ultimately form the three-dimensional energy-absorbing module 12.

[0057] In some embodiments, the plurality of energy-absorbing modules 12 may also be manufactured entirely from a single sheet blank 12a through an integral molding process, wherein the qualitative properties of each energy-absorbing module 12 are achieved through stamping and bending measures.

[0058] For example, the energy-absorbing module 12 can be bent along the width direction to form the side plate 121 and the cover plate 122, and the bent portions of the side plate 121 and the cover plate 122 can be stamped or bent into shape. Then, the side plate 121 and the cover plate 122 can be bent as a whole to form the energy-absorbing module 12 in the width direction. Then, the side plates 121 of adjacent energy-absorbing modules 12 in the width direction can be welded and fixed to complete the array of multiple energy-absorbing modules in the width direction.

[0059] In the length direction, since the side plate 121 and the cover plate 122 are formed in segments, no additional welding or fixing is required.

[0060] In some embodiments, in order to enhance the load-bearing stability of the energy-absorbing modules 12 on both sides of the energy-absorbing module 12 array, a reinforcing plate 13 can be added to the outer side in the width direction to provide a balancing resistance element in the width direction and prevent excessive collapse deformation of the side plate 121 into the box-shaped structure.

[0061] In other words, due to the array arrangement of the energy-absorbing modules 12, in the width direction of the array, except for the outermost energy-absorbing module 12, the other energy-absorbing modules 12 are balanced by other energy-absorbing modules 12 on both sides in the width direction, preventing excessive collapse of the side plate 121 of any one energy-absorbing module 12. However, the outermost side plate 121 of the outermost energy-absorbing module 12 does not have a balancing structure. To reduce excessive collapse of the outermost side plate 121, it can be balanced by the reinforcing plate 13.

[0062] In some embodiments, the reinforcing plate 13 may have the same shape and structure as the side plate 121, but with the opposite bending shape. That is, the reinforcing plate 13 protrudes outward from the box-shaped structure, so that the reinforcing plate 13 and the side plate 121 form a symmetrical rhombus, thereby maintaining balanced force when pressure is applied.

[0063] In some embodiments, considering that the cover plate 122 and the side plate 121 will further deform and absorb energy along the bending trend when subjected to pressure, thereby maintaining the stability of the shape; therefore, the bending shape of the side plate 121 and the cover plate 122 can be matched, and the deformation pace and amplitude of the side plate 121 and the cover plate 122 are adapted to avoid excessive mutual traction leading to structural deterioration of the energy absorption module 12.

[0064] Generally, by configuring the first connecting fold line 1213 between the first plate 1211 and the second plate 1212, and the second connecting fold line 1223 between the third plate 1221 and the fourth plate 1222 to be located in the same plane, the amplitude and pace of the side plate 121 and the cover plate 122 can be matched when they are folded. This is mainly manifested in the synchronous upward lifting of the side plate 121, with little traction deformation in other directions.

[0065] In some embodiments, considering that the cover plate 122 is located on top of the side plate 121 and the two side plates 121 are located on both sides of the cover plate 122, in order to maintain the balance of force applied to the two side plates 121, the second connecting fold line 1223 is perpendicular to the first connecting fold line 1213.

[0066] In some embodiments, the base 11 of the anti-collision beam 1 is arc-shaped, and the plurality of energy-absorbing modules 12 are located on one side of the convex arc surface of the base 11 as a side to cope with collisions.

[0067] This application embodiment also provides a crash beam assembly, including the aforementioned crash beam 1, energy-absorbing box 2, and mounting base 3, wherein the crash beam 1 is connected to the mounting base 3 through the energy-absorbing box 2.

[0068] The mounting base 3 is fixed to the longitudinal beam of the vehicle to stably support the anti-collision beam 1 and the energy-absorbing box 2, and to maintain their stable cooperation state to achieve stable energy absorption.

[0069] Generally, multiple energy-absorbing boxes 2 can be set up and evenly distributed between the anti-collision beam 1 and the vehicle.

[0070] This application also provides a vehicle that uses the above-described anti-collision beam assembly.

[0071] In some embodiments, the vehicle may be a new energy vehicle.

[0072] The embodiments of this application have at least the following beneficial effects: The anti-collision beam, anti-collision beam assembly, and vehicle provided in this application embodiment construct a distributed load and coordinated deformation system by arranging multiple interconnected energy-absorbing modules in an array on the base. This effectively avoids local concentration of impact loads and overall structural instability and fracture, ensuring the continuity and reliability of the energy transfer path. Each energy-absorbing module adopts a specific box-shaped structure enclosed by an inner inclined side plate and an outer inclined cover plate. This structure decomposes the positive impact force into controllable components that induce the side plate to retract inward and the cover plate to arch, thereby converting the impact energy into ordered structural deformation energy. At the same time, the specific shape of the cover plate and the side plate, as well as the connection relationship at specific edges, ensure that when the anti-collision beam is subjected to overall bending force, the shape of the cover plate with fixed ends and outward protrusion in the middle can guide the energy-absorbing module to fold and compress upward, while the ends are fixedly connected to the ends of adjacent cover plates. Thus, the top surface of the anti-collision beam can only be compressed upward and cannot be crushed. This effect generates vertical tension in the side panels (middle section), which maintains the cross-sectional height of the crash beam to achieve a continuous large reaction force response. This ensures the crash beam's structure can undergo continuous and gradual deformation, guaranteeing the stability and reliability of its crashworthiness. The combination of the overall structural layout and the local structure of the energy-absorbing modules enables the crash beam to be controlled throughout the entire process, from collision contact and stable energy absorption to efficient rearward energy transfer. This fundamentally overcomes the shortcomings of traditional beams, such as destructive collapse and interruption of force flow, improving the reliability and stability of its impact resistance.

[0073] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0074] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0075] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this application, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of this application, "multiple" means two or more, unless otherwise explicitly and specifically limited.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0077] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0078] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A crash beam, characterized in that, It includes multiple energy-absorbing modules arranged in an array on a base, with adjacent energy-absorbing modules connected together; The energy absorption module includes: Two side plates are arranged opposite each other on the base; A cover plate is connected to the top of the two side plates, and the cover plate, the two side plates, and the base form a hollow box-shaped structure; The side plate includes a first plate and a second plate that are angled together and inclined toward the inside of the box-shaped structure; The cover plate includes a third plate and a fourth plate that are angled together and inclined to the outside of the box-shaped structure. The two sides of the third plate are respectively connected to the top of the first plate of the two side plates, and the two sides of the fourth plate are respectively connected to the top of the second plate of the two side plates.

2. The anti-collision beam as described in claim 1, characterized in that, The first plate and the second plate in the side panel are integrally bent into shape.

3. The anti-collision beam as described in claim 1, characterized in that, The third and fourth plates in the cover plate are integrally bent into shape.

4. The anti-collision beam as described in claim 1, characterized in that, The angle between the first plate and the second plate is an obtuse angle, and the angle between the third plate and the fourth plate is an obtuse angle.

5. The anti-collision beam as described in claim 1, characterized in that, The width direction of the energy-absorbing module is parallel to the relative direction of the two side plates, the height direction of the energy-absorbing module is parallel to the relative direction of the cover plate and the base, and the length direction of the energy-absorbing module is perpendicular to the height and width directions. The plurality of energy-absorbing modules are arranged along the length direction and the width direction.

6. The anti-collision beam as described in claim 5, characterized in that, Along the length direction, the two ends of the side plate are provided with welding parts, and the opposite side plates in adjacent energy-absorbing modules are fixedly connected through the welding parts.

7. The anti-collision beam as described in claim 5, characterized in that, In the width direction, the anti-collision beam is also provided with reinforcing plates on both sides.

8. The anti-collision beam as described in claim 7, characterized in that, The reinforcing plate and the adjacent side plate are symmetrically arranged on the base.

9. The anti-collision beam as described in claim 1, characterized in that, The two side plates and the cover plate of the energy absorption module are integrally formed.

10. The anti-collision beam as described in claim 1, characterized in that, The multiple energy-absorbing modules are integrally formed.

11. The anti-collision beam as described in any one of claims 1 to 10, characterized in that, The first connecting line between the first plate and the second plate, and the second connecting line between the third plate and the fourth plate are located in the same plane.

12. The anti-collision beam as described in claim 11, characterized in that, The first connecting line and the second connecting line are perpendicular.

13. A crash beam assembly, characterized in that, Includes the anti-collision beam, energy-absorbing box, and mounting base as described in any one of claims 1 to 12; The base is connected to the mounting base via the energy-absorbing box.

14. A vehicle, characterized in that, Includes the anti-collision beam assembly as described in claim 13.

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