Crash beam and vehicle

Abstract

The application discloses a kind of anti-collision beam and vehicle, anti-collision beam includes: anti-collision beam body, with multiple independent cavities, the extension direction of cavity is identical with the extension direction of anti-collision beam body, reinforcing rib is arranged in cavity, reinforcing rib is bent and extends in the extension direction of anti-collision beam;Energy-absorbing box is arranged in one side of anti-collision beam body and is installed on anti-collision beam body, and energy-absorbing box is provided with energy-absorbing cavity.This application is by being arranged in multiple independent cavities in anti-collision beam body and being arranged in reinforcing rib in cavity, ensure the structural strength of anti-collision beam while lightening overall weight, can effectively reduce the risk that local buckling or overall deformation of anti-collision beam occurs when being stressed, the setting of energy-absorbing box and its internal energy-absorbing cavity can further absorb impact kinetic energy, to improve the structural stability and durability of anti-collision beam.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a crash beam and a vehicle. Background Technology

[0002] In existing technologies, a vehicle's anti-collision beam structure is a device used to absorb collision energy when a vehicle is involved in a collision. Currently, existing anti-collision beams and energy-absorbing boxes generally have low energy absorption efficiency, are prone to cracking during a collision and cannot fully absorb energy, or have relatively complex structures, heavy overall weight, and high production costs, which is not conducive to achieving lightweight vehicles. Utility Model Content

[0003] The main technical problem addressed by this application is to provide a crash beam and vehicle that can improve energy absorption efficiency while ensuring deformation stability.

[0004] To solve the above-mentioned technical problems, this application adopts a technical solution: providing a crash beam, the crash beam comprising: a crash beam body having a plurality of independent cavities, the extending direction of the cavities being the same as the extending direction of the crash beam body, the cavities having reinforcing ribs that bend and extend in the extending direction of the crash beam; and an energy-absorbing box disposed on one side of the crash beam body and mounted on the crash beam body, the energy-absorbing box having an energy-absorbing cavity.

[0005] The anti-collision beam body includes: a first side plate; a second side plate and a first support plate, located on the first side of the first side plate, the second side plate being disposed opposite to the first side plate, the first support plate connecting the first side plate and the second side plate to form a first cavity; a third side plate and a second support plate, located on the first side of the first side plate and on the side of the first support plate away from the second side plate, the second support plate being spaced apart from the first support plate to form a second cavity, the third side plate being disposed opposite to the first side plate, the second support plate connecting the third side plate and the first side plate to form a third cavity.

[0006] The first cavity is provided with a first reinforcing rib, the second cavity is provided with a second reinforcing rib, and the third cavity is provided with a third reinforcing rib. The first reinforcing rib, the second reinforcing rib, and the third reinforcing rib all extend in the extension direction of the anti-collision beam body.

[0007] The first reinforcing rib comprises a plurality of first reinforcing plates arranged sequentially in the extending direction of the anti-collision beam body. The sidewall of the first reinforcing plate is connected to the first support plate, and both ends of the first reinforcing plate are respectively connected to the first side plate and the second side plate. One end of two adjacent first reinforcing plates is connected, and the other end is spaced apart. The third reinforcing rib comprises a plurality of third reinforcing plates arranged sequentially in the extending direction of the anti-collision beam body. The sidewall of the third reinforcing plate is connected to the second support plate, and both ends of the third reinforcing plate are respectively connected to the first side plate and the third side plate. One end of two adjacent third reinforcing plates is connected, and the other end is spaced apart. The second reinforcing rib comprises a plurality of second reinforcing plates arranged sequentially in the extending direction of the anti-collision beam body. The sidewall of the second reinforcing plate is connected to the first side plate, and both ends of the second reinforcing plate are respectively connected to the first support plate and the second support plate. One end of two adjacent second reinforcing plates is connected, and the other end is spaced apart.

[0008] The energy-absorbing box includes a top plate, a bottom plate, two fourth side plates, and at least one first reinforcing plate. The top plate and the bottom plate are arranged opposite each other along a first direction. The two fourth side plates are spaced apart between the top plate and the bottom plate along a second direction to form the energy-absorbing cavity. The first reinforcing plate is disposed in the energy-absorbing cavity to divide the energy-absorbing cavity into at least two sub-energy-absorbing cavities. The first direction and the second direction are intersecting. The top plate includes a first mounting portion protruding from the ends of the two fourth side plates, and the bottom plate includes a second mounting portion protruding from the ends of the two fourth side plates. Both the first mounting portion and the second mounting portion are connected to the anti-collision beam body and are respectively disposed on opposite sides of the anti-collision beam body in the first direction.

[0009] The anti-collision beam further includes: a first locking bolt, one end of which passes through the anti-collision beam body and the first mounting part and the second mounting part of the energy-absorbing box and is screwed to a first nut to lock the anti-collision beam body and the energy-absorbing box; and a first sleeve, located inside the anti-collision beam body and sleeved on the first locking bolt.

[0010] The anti-collision beam further includes: a second reinforcing plate connected between the first mounting part and the anti-collision beam body; and a third reinforcing plate connected between the second mounting part and the anti-collision beam body; wherein the first locking bolt passes through the first mounting part, the second reinforcing plate, the first sleeve, the third reinforcing plate and the second mounting part in sequence and is locked with the first nut.

[0011] Wherein, at least one first shrinkage hole is provided at the connection between the top plate and the fourth side plate, and / or at least one second shrinkage hole is provided at the connection between the bottom plate and the fourth side plate.

[0012] The anti-collision beam also includes a reinforcing block, which is connected between the side wall of the anti-collision beam body facing the energy-absorbing box and the side wall of the energy-absorbing box.

[0013] To solve the above-mentioned technical problems, this application adopts a technical solution: providing a vehicle including the aforementioned anti-collision beam.

[0014] Beneficial effects: By setting multiple independent cavities in the body of the anti-collision beam and setting reinforcing ribs in the cavities, this application ensures the structural strength of the anti-collision beam while reducing the overall weight. It can effectively reduce the risk of local buckling or overall deformation of the anti-collision beam under stress. The setting of the energy-absorbing box and its internal energy-absorbing cavity can further absorb the impact kinetic energy, thereby improving the structural stability and durability of the anti-collision beam. Attached Figure Description

[0015] 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 drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0016] Figure 1 This is a schematic diagram of the structure of a crash beam provided in one embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the structure of the anti-collision beam body provided in one embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of an energy-absorbing box provided in an embodiment of this application;

[0019] Figure 4 This is a top view of the anti-collision beam provided in one embodiment of this application;

[0020] Figure 5 for Figure 4 A schematic diagram of the cross section along section line AA;

[0021] Figure 6 This is a structural block diagram of a vehicle provided in one embodiment of this application. Detailed Implementation

[0022] 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.

[0023] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] Please see Figure 1 This application provides a crash beam 100, which is used in a vehicle 200 (see reference). Figure 6 A device for absorbing collision energy upon impact. When vehicle 200 is involved in a collision, the anti-collision beam 100 effectively reduces the damage to the longitudinal beams of the vehicle body caused by the collision force. The anti-collision beam 100 includes an anti-collision beam body 10 and an energy-absorbing box 20 connected to one side of the anti-collision beam body 10. The anti-collision beam body 10, as the main structure of the anti-collision beam 100, effectively reduces the risk of local buckling or overall deformation of the anti-collision beam 100 under stress. The energy-absorbing box 20, as an additional energy absorption unit, can rapidly undergo controllable plastic deformation in the initial stage of a collision, absorbing a large amount of impact kinetic energy, playing a good buffering role, effectively reducing the impact force transmitted to the main structure of the vehicle body, and protecting the safety of the occupants.

[0026] Specifically, the anti-collision beam body 10 is provided with multiple independent cavities 11. The extension direction of the cavity 11 is the same as the extension direction of the anti-collision beam body 10. A reinforcing rib 12 is provided in the cavity 11. The reinforcing rib 12 bends and extends in the extension direction of the anti-collision beam 100.

[0027] The multiple cavities 11 within the anti-collision beam body 10 can reduce the overall weight of the anti-collision beam 100 without affecting structural strength, which is beneficial for the lightweight design of the anti-collision beam 100. Simultaneously, the bent-extension reinforcing ribs 12 provided in the extension direction of the anti-collision beam 100 can effectively improve the local stiffness and bending resistance of the anti-collision beam body 10. In the event of a collision, the bent-extension reinforcing ribs 12 can guide and absorb impact energy, gradually dissipating energy through their own deformation, thereby improving the overall impact resistance and energy absorption efficiency of the anti-collision beam 100. In one embodiment, the bending extension method of the reinforcing ribs 12 includes any one or more of wavy, Z-shaped, or serpentine shapes, specifically set according to requirements, and is not limited here.

[0028] An energy-absorbing box 20 is disposed on one side of the anti-collision beam body 10 and installed on the anti-collision beam body 10. The energy-absorbing box 20 is provided with an energy-absorbing cavity 21. The energy-absorbing cavity 21 of the energy-absorbing box 20 can absorb and buffer the impact force. When the anti-collision beam body 10 is impacted, most of the force can be transferred to the energy-absorbing box 20. The energy-absorbing cavity 21 inside the energy-absorbing box 20 absorbs and buffers the impact force, thereby significantly reducing the impact force received by the anti-collision beam 100. In one embodiment, the energy-absorbing box 20 and the anti-collision beam body 10 are detachably connected. When the anti-collision beam 100 is impacted, when the anti-collision beam 100 is replaced or repaired, either the anti-collision beam body 10 or the energy-absorbing box 20 can be replaced or repaired separately, thereby improving the economic efficiency of the anti-collision beam 100.

[0029] In the aforementioned anti-collision beam 100, by setting multiple independent cavities 11 within the anti-collision beam body 10 and setting reinforcing ribs 12 within the cavities 11, the structural strength of the anti-collision beam 100 is ensured while the overall weight is reduced. This effectively reduces the risk of local buckling or overall deformation of the anti-collision beam 100 under stress. The energy-absorbing box 20 and its internal energy-absorbing cavity 21 can further absorb impact kinetic energy, thereby improving the structural stability and durability of the anti-collision beam 100.

[0030] Please continue reading. Figure 1 In one embodiment, the anti-collision beam body 10 is an arched structure with positive bending rigidity, which can provide strong support. After the anti-collision beam body 10 absorbs energy for the first time, the impact force absorbed by it can be effectively transferred to the energy absorption box 20.

[0031] Please continue reading. Figure 1 In one embodiment, there are two energy-absorbing boxes 20, which are symmetrically arranged at both ends of the anti-collision beam body 10 along its length. For example, when the anti-collision beam 100 collides, the two energy-absorbing boxes 20 can absorb as much impact force as possible and crush and deform, transferring energy to the longitudinal beam and other structures.

[0032] Please continue reading. Figure 1 In one embodiment, the anti-collision beam 100 further includes a reinforcing block 30, which is connected between the side wall of the anti-collision beam body 10 facing the energy-absorbing box 20 and the side wall of the energy-absorbing box 20.

[0033] Specifically, the reinforcing block 30 can further enhance the connection strength between the energy-absorbing box 20 and the anti-collision beam body 10, reducing the risk of the connection cracking during a collision, resulting in insufficient energy absorption. In this embodiment, the reinforcing block 30 is only provided on the outer side of the energy-absorbing box 20, reducing the probability of the anti-collision beam body 10 collapsing inward. In other embodiments, the reinforcing block 30 can also be provided on both the inner and outer sides of the energy-absorbing box 20.

[0034] Please refer to the following: Figure 1 and Figure 2 In one embodiment, the anti-collision beam body 10 includes a first side plate 13, a second side plate 14, a first support plate 15, a third side plate 16, and a second support plate 17. The second side plate 14 and the first support plate 15 are located on the first side of the first side plate 13, and the second side plate 14 is disposed opposite to the first side plate 13. The first support plate 15 connects the first side plate 13 and the second side plate 14 to form a first cavity 141. The third side plate 16 and the second support plate 17 are located on the first side of the first side plate 13 and on the side of the first support plate 15 away from the second side plate 14. The second support plate 17 is spaced apart from the first support plate 15 to form a second cavity 161. The third side plate 16 is disposed opposite to the first side plate 13, and the second support plate 17 connects the third side plate 16 and the first side plate 13 to form a third cavity 171.

[0035] Specifically, in combination Figure 2 As can be seen, the first side plate 13 is the base plate of the entire anti-collision beam 100 cross section, and usually serves as the main load-bearing surface facing the front of the vehicle. The second side plate 14 is parallel to and opposite to the first side plate 13, forming a vertical wall. The first support plate 15 acts as a bridge to connect the first side plate 13 and the second side plate 14 to form the first cavity 141. The first support plate 15, the second support plate 17, and the first side plate 13 form a second cavity 161. The third side plate 16 is also opposite to the first side plate 13, forming another vertical wall, and together with the second support plate 17 and the first side plate 13, it forms another cavity 11, namely the third cavity 171. By arranging the positions between multiple side plates and support plates, multiple independent cavity structures 11 are constructed within the anti-collision beam body 10, which improves the impact resistance of the anti-collision beam 100 while ensuring its lightweight design, thereby improving the product reliability of the anti-collision beam 100.

[0036] Please continue reading. Figure 1 and Figure 2, in one embodiment, the first cavity 141 and the third cavity 171 are symmetric structures centered on the second cavity 161, that is, the combination of the second side plate 14 and the first support plate 15 has the same structure as the combination of the third side plate 16 and the second support plate 17. In other embodiments, the first cavity 141 and the third cavity 171 may also have different structures, which are specifically set according to requirements and are not limited herein.

[0037] Please continue to refer to Figure 1 and Figure 2 , in one embodiment, the first cavity 141, the second cavity 161, and the third cavity 171 are all chamber structures with openings. Combining Figure 2 it can be seen that the cross-section of the anti-collision beam body 10 is a "pán" shaped cross-section. In other embodiments, the first cavity 141, the second cavity 161, and the third cavity 171 may also be closed structures, which are specifically set according to requirements and are not limited herein.

[0038] In one embodiment, the first side plate 13, the second side plate 14, the third side plate 16, the first support plate 15, and the second support plate 17 are integrally formed structures, thereby improving the structural strength of the anti-collision beam body 10.

[0039] Please continue to refer to Figure 1 and Figure 2 , in one embodiment, a first reinforcing rib 121 is provided in the first cavity 141, a second reinforcing rib 122 is provided in the second cavity 161, and a third reinforcing rib 123 is provided in the third cavity 171. The first reinforcing rib 121, the second reinforcing rib 122, and the third reinforcing rib 123 are all bent and extended in the extending direction of the anti-collision beam body 10.

[0040] Specifically, by providing the first reinforcing rib 121 in the first cavity 141 and the third reinforcing rib 123 in the third cavity 171, the local stability in the first cavity 141 and the third cavity 171 can be enhanced, and the buckling of the cavity walls of the first cavity 141 and the third cavity 171 can be reduced, thereby improving the compressive resistance of the first cavity 141 and the third cavity 171. By providing the second reinforcing rib 122 in the second cavity 161, the stiffness of the intermediate region between the first cavity 141 and the third cavity 171 can be enhanced, and at the same time, the second reinforcing rib 122 participates in energy absorption during a collision, further improving the energy absorption efficiency of the anti-collision beam 100.

[0041] Understandably, the first reinforcing rib 121, the second reinforcing rib 122, and the third reinforcing rib 123 are equivalent to the internal skeleton of the corresponding chamber, thereby dividing the corresponding chamber into multiple smaller chambers and significantly improving the critical buckling load of each smaller chamber. Simultaneously, the first reinforcing rib 121, the second reinforcing rib 122, and the third reinforcing rib 123 extend in a bent direction along the anti-collision beam 100, indicating that they are not straight lines but rather wavy, Z-shaped, serpentine, or other bent shapes. This bent structure enhances the stability and energy absorption efficiency of the anti-collision beam 100 under axial compression.

[0042] Please continue reading. Figure 1 and Figure 2 In one embodiment, the first reinforcing rib 121, the second reinforcing rib 122, and the third reinforcing rib 123 can be configured with the same bending structure, thereby simplifying the manufacturing process. For example, the structures of the first reinforcing rib 121, the second reinforcing rib 122, and the third reinforcing rib 123 can all be wavy, Z-shaped, or serpentine bending structures. In other embodiments, the structures of the first reinforcing rib 121, the second reinforcing rib 122, and the third reinforcing rib 123 can also be configured with different bending structures. For example, the first reinforcing rib 121 can be wavy, the second reinforcing rib 122 can be Z-shaped, and the third reinforcing rib 123 can be serpentine. The specific configuration depends on the requirements and is not limited here.

[0043] Please continue reading. Figure 1 and Figure 2 In one embodiment, the first reinforcing rib 121 includes a plurality of first reinforcing plates 1211 arranged sequentially in the extending direction of the anti-collision beam body 10. The sidewall of the first reinforcing plate 1211 is connected to the first support plate 15. The two ends of the first reinforcing plate 1211 are respectively connected to the first side plate 13 and the second side plate 14, and one end of two adjacent first reinforcing plates 1211 is connected, while the other end is spaced apart. The third reinforcing rib 123 includes a plurality of third reinforcing plates 1221 arranged sequentially in the extending direction of the anti-collision beam body 10. The sidewall of the third reinforcing plate 1221 is connected to the second support plate 17. The two ends of the third reinforcing plate 1221 are respectively connected to the first side plate 13 and the third side plate 16, and one end of two adjacent third reinforcing plates 1221 is connected, while the other end is spaced apart. The second reinforcing rib 122 includes a plurality of second reinforcing plates 1231 arranged sequentially in the extension direction of the anti-collision beam body 10. The sidewall of the second reinforcing plate 1231 is connected to the first side plate 13. The two ends of the second reinforcing plate 1231 are respectively connected to the first support plate 15 and the second support plate 17, and one end of two adjacent second reinforcing plates 1231 is connected, while the other end is spaced apart.

[0044] Specifically, the sidewalls of the multiple first reinforcing plates 1211 within the first reinforcing rib 121 are all fixedly connected to the first support plate 15, which can improve the longitudinal stability of the first cavity 141. The sidewalls of the multiple third reinforcing plates 1221 within the third reinforcing rib 123 are all fixedly connected to the second support plate 17, which can improve the longitudinal stability of the second cavity 161. The multiple second reinforcing plates 1231 within the second reinforcing rib 122 serve to bridge the first support plate 15 and the second support plate 17, thereby improving the lateral stiffness and torsional resistance of the overall structure.

[0045] Meanwhile, the two adjacent first reinforcing plates 1211, the two adjacent second reinforcing plates 1231, and the two adjacent third reinforcing plates 1221 are all connected end to end to form a continuous bending reinforcement structure, thereby forming a wave-shaped force transmission path. In the process of being crushed by a collision, the overall synchronous failure can be avoided, thereby improving the energy absorption stability of the anti-collision beam 100.

[0046] In one embodiment, each of the first reinforcing piece 1211 and the third reinforcing piece 1221 is an arc-shaped plate structure, and the second reinforcing piece 1231 is a flat plate structure, so as to improve the structural strength within the limited space of their respective first cavity 141, second cavity 161 and third cavity 171.

[0047] Please refer to the following: Figure 1 and Figure 3 In one embodiment, the energy-absorbing box 20 includes a top plate 22, a bottom plate 23, two fourth side plates 24, and at least one first reinforcing plate 25. The top plate 22 and the bottom plate 23 are arranged opposite each other along the first direction Z. The two fourth side plates 24 are spaced apart between the top plate 22 and the bottom plate 23 along the second direction X to form an energy-absorbing cavity 21. The first reinforcing plate 25 is disposed in the energy-absorbing cavity 21 to divide the energy-absorbing cavity 21 into at least two sub-energy-absorbing cavities 211. The first direction Z and the second direction X are arranged intersectingly.

[0048] Specifically, an energy-absorbing cavity 21 is formed between the top plate 22, the bottom plate 23, and the two fourth side plates 24. The cross-section of the energy-absorbing cavity 21 is rectangular. The first reinforcing plate 25 is disposed inside the energy-absorbing cavity 21, dividing the originally single energy-absorbing cavity 21 into several sub-energy-absorbing cavities 211, thereby improving structural stability and energy absorption efficiency.

[0049] In one embodiment, the first direction Z and the second direction X are perpendicular to each other.

[0050] In one embodiment, the number of the first reinforcing plates 25 is set to two. The two first reinforcing plates 25 can be arranged in parallel or crosswise, and are specifically set according to requirements, which is not limited herein. For example, the energy absorption box 20 includes two first reinforcing plates 25 that are cross-shaped. The two first reinforcing plates 25 divide the energy absorption cavity 21 into four sub-energy absorption cavities 21 with the same cross-section (that is, the cross-section of the energy absorption cavity 21 is in a "field" shape structure). In other embodiments, the two first reinforcing plates 25 can also divide the energy absorption cavity 21 into two cavities with different cross-sectional areas, and the present application does not make specific limitations.

[0051] Please continue to refer to Figure 1 and Figure 3 In one embodiment, the thickness of the two fourth side plates 24 is greater than that of the first reinforcing plate 25. The fourth side plates 24 serve as the outer plates of the energy absorption box 20, providing sufficient lateral stiffness to bear most of the compression load and prevent the overall instability of the energy absorption box 20. The first reinforcing plate 25 does not directly bear external impacts and mainly functions as an internal framework. The first reinforcing plate 25 yields preferentially during the crushing process to form a plastic hinge to guide the folding position. The thickness settings of the fourth side plates 24 and the first reinforcing plate 25 can achieve a balance among structural strength, energy absorption efficiency, and lightweight, thereby improving the product reliability of the anti-collision beam 100.

[0052] Please refer to Figure 4 and Figure 5 together, where Figure 5 is Figure 4 a cross-sectional view along the section line A-A in

[0053] In one embodiment, the anti-collision beam 100 further includes a second locking bolt (not shown in the figure) and a second sleeve 40. The second sleeve 40 is provided at one end of the energy absorption box 20 away from the anti-collision beam body 10, and the second sleeve 40 is located in the energy absorption cavity 21 of the energy absorption box 20 and is嵌合连接 with the first reinforcing plate 25. The second locking bolt passes through the second sleeve 40 and the two fourth side plates 24 and is fixedly connected to an external longitudinal beam (not shown in the figure) through a second nut (not shown in the figure), thereby improving the connection strength between the energy absorption box 20 and the longitudinal beam.

[0054] In one embodiment, the second sleeve 40 has an eight-shaped sleeve structure. In other embodiments, the structure of the second sleeve 40 can be specifically set according to requirements, which is not limited herein.

[0055] Please refer to Figure 3 、 Figure 4 and Figure 5 需要注意的是,原文中“嵌合连接”可能表述有误,你可根据实际情况进行修正。若还有其他疑问,欢迎继续向我提问。In one embodiment, the top plate 22 includes a first mounting portion 221 protruding from the ends of the two fourth side plates 24, and the bottom plate 23 includes a second mounting portion 231 protruding from the ends of the two fourth side plates 24. The first mounting portion 221 and the second mounting portion 231 are both connected to the anti-collision beam body 10 and are respectively disposed on opposite sides of the anti-collision beam body 10 in the first direction Z.

[0056] Specifically, in combination Figure 2 and Figure 5 As can be seen, the first mounting part 221 connects to the anti-collision beam body 10 from above (e.g., via bolts or welding), and the second mounting part 231 connects to the anti-collision beam body 10 from below (e.g., via bolts or welding). The anti-collision beam body 10 is sandwiched between the first mounting part 221 and the second mounting part 231, forming a U-shaped wrapping connection structure. The first mounting part 221 and the second mounting part 231 achieve bidirectional fixation from top to bottom, improving the connection rigidity and bending resistance between the anti-collision beam body 10 and the energy-absorbing box 20.

[0057] In one embodiment, the top plate 22, the bottom plate 23, and the two side plates are integrally formed, thereby improving the structural strength of the energy-absorbing box 20.

[0058] Please continue reading. Figure 2 , Figure 4 and Figure 5 In one embodiment, the anti-collision beam 100 further includes a first locking bolt 50 and a first sleeve 60. One end of the first locking bolt 50 passes through the first mounting portion 221 and the second mounting portion 231 of the anti-collision beam body 10 and the energy-absorbing box 20 and is screwed to the first nut 51 to lock the anti-collision beam body 10 and the energy-absorbing box 20. The first sleeve 60 is located inside the anti-collision beam body 10 and is sleeved on the first locking bolt 50.

[0059] Specifically, the energy-absorbing box 20 and the anti-collision beam body 10 are connected by a detachable bolted structure via a first locking bolt 50. The first locking bolt 50 is inserted from one side, passing sequentially through the anti-collision beam body 10 (e.g., the first support plate 15 and the second support plate 17 inside the anti-collision beam body 10), the first mounting part 221 of the energy-absorbing box 20, and the second mounting part 231, and finally screwed into the first nut 51 to complete the locking, achieving rigid fixation between the two and ensuring reliable force transmission during a collision. The first sleeve 60 is usually a hollow cylinder. The first sleeve 60 is installed inside the anti-collision beam body 10 and fitted outside the first locking bolt 50. It can enhance the local strength at the location where the energy-absorbing box 20 is connected inside the anti-collision beam body 10, and also play a role in accurately positioning the first locking bolt 50, while protecting the first locking bolt 50 to reduce wear.

[0060] In one embodiment, an energy-absorbing box 20 is fixedly connected to the anti-collision beam body 10 by a combination of two sets of first locking bolts 50 and first sleeves 60, which further improves the connection strength between the energy-absorbing box 20 and the anti-collision beam body 10.

[0061] Please continue reading. Figure 2 , Figure 4 and Figure 5 In one embodiment, the anti-collision beam 100 further includes a second reinforcing plate 70 and a third reinforcing plate 80. The second reinforcing plate 70 is connected between the first mounting portion 221 and the anti-collision beam body 10, and the third reinforcing plate 80 is connected between the second mounting portion 231 and the anti-collision beam body 10. A first locking bolt 50 passes sequentially through the first mounting portion 221, the second reinforcing plate 70, the first sleeve 60, the third reinforcing plate 80, and the second mounting portion 231, and is locked to a first nut 51.

[0062] Specifically, the second reinforcing plate 70 and the third reinforcing plate 80 increase the bearing area, thereby strengthening the first mounting part 221 and the second mounting part 231 of the energy-absorbing box 20 respectively, thereby further improving the tear resistance between the energy-absorbing box 20 and the anti-collision beam body 10.

[0063] In one embodiment, the second reinforcing plate 70 and the third reinforcing plate 80 are fixedly connected to the first mounting part 221 and the second mounting part 231 respectively by welding, thereby further improving the connection strength between the energy-absorbing box 20 and the anti-collision beam body 10.

[0064] Please see Figure 3 In one embodiment, at least one first contraction hole 241 is provided at the connection between the top plate 22 and the fourth side plate 24, and at least one second contraction hole 251 is provided at the connection between the bottom plate 23 and the fourth side plate 24. It is understood that without contraction holes, the energy-absorbing box 20 may buckle randomly under pressure, leading to uneven deformation or localized tearing. With contraction holes provided on the energy-absorbing box 20, the area with the contraction holes yields first due to stress concentration, becoming the starting point for wrinkling. By providing the first contraction hole 241 at the connection between the top plate 22 and the fourth side plate 24, and the second contraction hole 251 at the connection between the bottom plate 23 and the fourth side plate 24, stable deformation of the energy-absorbing box 20 can be induced, thereby improving energy absorption efficiency.

[0065] Please continue reading. Figure 3 In one embodiment, two first collapse holes 241 are provided at the connection between the top plate 22 and the fourth side plate 24, and two second collapse holes 251 are provided at the connection between the bottom plate 23 and the fourth side plate 24, thereby further inducing the energy-absorbing box 20 to deform stably and improve the energy absorption efficiency. In other embodiments, the number of first collapse holes 241 and second collapse holes 251 can also be other values, depending on the requirements, and is not limited here.

[0066] In one embodiment, the shape / size of the first collapse hole 241 and the shape / size of the second collapse hole 251 can be the same, thereby simplifying the manufacturing process. In other processes, the shape / size of the first collapse hole 241 and the shape / size of the second collapse hole 251 can also be different, depending on the requirements, and is not limited here.

[0067] Please refer to the following: Figure 1 and Figure 6 This application also provides a vehicle 200, including the aforementioned anti-collision beam 100. The anti-collision beam 100 includes an anti-collision beam body 10 and an energy-absorbing box 20. The anti-collision beam body 10 has multiple independent cavities 11, the extending direction of which is the same as the extending direction of the anti-collision beam body 10. Reinforcing ribs 12 are provided within the cavities 11, and the reinforcing ribs 12 bend and extend in the extending direction of the anti-collision beam 100. The energy-absorbing box 20 is disposed on one side of the anti-collision beam body 10 and mounted on the anti-collision beam body 10. The energy-absorbing box 20 has energy-absorbing cavities 21.

[0068] In the aforementioned vehicle 200, by setting multiple independent cavities 11 within the anti-collision beam body 10 and setting reinforcing ribs 12 within the cavities 11, the structural strength of the anti-collision beam 100 is ensured while the overall weight is reduced. This effectively reduces the risk of local buckling or overall deformation of the anti-collision beam 100 under stress. The energy-absorbing box 20 and its internal energy-absorbing cavity 21 can further absorb impact kinetic energy, thereby improving the structural stability and durability of the anti-collision beam 100 in the vehicle 200.

[0069] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A crash beam, characterized in that, The anti-collision beam includes: The anti-collision beam body has multiple independent cavities. The extending direction of the cavities is the same as the extending direction of the anti-collision beam body. Reinforcing ribs are provided in the cavities, and the reinforcing ribs are bent and extended in the extending direction of the anti-collision beam. An energy-absorbing box is disposed on one side of the anti-collision beam body and installed on the anti-collision beam body, and the energy-absorbing box is provided with an energy-absorbing cavity.

2. The anti-collision beam according to claim 1, characterized in that, The anti-collision beam body includes: First side panel; The second side plate and the first support plate are located on the first side of the first side plate. The second side plate is disposed opposite to the first side plate. The first support plate connects the first side plate and the second side plate to form a first cavity. The third side plate and the second support plate are located on the first side of the first side plate and on the side of the first support plate away from the second side plate. The second support plate and the first support plate are spaced apart to form a second cavity. The third side plate is disposed opposite to the first side plate. The second support plate connects the third side plate and the first side plate to enclose and form the third cavity.

3. The anti-collision beam according to claim 2, characterized in that, A first reinforcing rib is provided in the first cavity, a second reinforcing rib is provided in the second cavity, and a third reinforcing rib is provided in the third cavity. The first reinforcing rib, the second reinforcing rib, and the third reinforcing rib all extend in the extension direction of the anti-collision beam body.

4. The anti-collision beam according to claim 3, characterized in that, The first reinforcing rib includes a plurality of first reinforcing plates arranged sequentially in the extending direction of the anti-collision beam body. The sidewall of the first reinforcing plate is connected to the first support plate. Both ends of the first reinforcing plate are respectively connected to the first side plate and the second side plate. One end of two adjacent first reinforcing plates is connected, and the other end is spaced apart. The third reinforcing rib includes a plurality of third reinforcing plates arranged sequentially in the extending direction of the anti-collision beam body. The sidewall of the third reinforcing plate is connected to the second support plate. Both ends of the third reinforcing plate are respectively connected to the first side plate and the third side plate. One end of two adjacent third reinforcing plates is connected, and the other end is spaced apart. The second reinforcing rib includes a plurality of second reinforcing plates arranged sequentially in the extending direction of the anti-collision beam body. The sidewall of the second reinforcing plate is connected to the first side plate. Both ends of the second reinforcing plate are respectively connected to the first support plate and the second support plate. One end of two adjacent second reinforcing plates is connected, and the other end is spaced apart.

5. The anti-collision beam according to claim 1, characterized in that, The energy-absorbing box includes a top plate, a bottom plate, two fourth side plates, and at least one first reinforcing plate. The top plate and the bottom plate are arranged opposite each other along a first direction. The two fourth side plates are spaced apart between the top plate and the bottom plate along a second direction to form the energy-absorbing cavity. The first reinforcing plate is disposed in the energy-absorbing cavity to divide the energy-absorbing cavity into at least two sub-energy-absorbing cavities. The first direction and the second direction are arranged intersecting. The top plate includes a first mounting portion protruding from the ends of the two fourth side plates, and the bottom plate includes a second mounting portion protruding from the ends of the two fourth side plates. Both the first mounting portion and the second mounting portion are connected to the anti-collision beam body and are respectively disposed on opposite sides of the anti-collision beam body in the first direction.

6. The anti-collision beam according to claim 5, characterized in that, The anti-collision beam also includes: The first locking bolt has one end passing through the first mounting part and the second mounting part of the anti-collision beam body and the energy absorption box and being screwed to the first nut to lock the anti-collision beam body and the energy absorption box. The first sleeve is located inside the anti-collision beam body and is fitted onto the first locking bolt.

7. The anti-collision beam according to claim 6, characterized in that, The anti-collision beam also includes: The second reinforcing plate is connected between the first mounting part and the anti-collision beam body; The third reinforcing plate is connected between the second mounting part and the anti-collision beam body; The first locking bolt passes sequentially through the first mounting part, the second reinforcing plate, the first sleeve, the third reinforcing plate, and the second mounting part, and is locked to the first nut.

8. The anti-collision beam according to claim 6, characterized in that, At least one first shrinkage hole is provided at the connection between the top plate and the fourth side plate, and / or at least one second shrinkage hole is provided at the connection between the bottom plate and the fourth side plate.

9. The anti-collision beam according to claim 1, characterized in that, The anti-collision beam also includes a reinforcing block, which is connected between the side wall of the anti-collision beam body facing the energy-absorbing box and the side wall of the energy-absorbing box.

10. A vehicle, characterized in that, The anti-collision beam includes any one of claims 1-9 above.

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