Anti-collision beam assembly and vehicle

Abstract

The utility model provides an anti-collision beam assembly and a vehicle. The anti-collision beam assembly comprises an anti-collision beam and an energy absorption box connected with the anti-collision beam. The energy absorption box comprises a lower cavity and an upper cavity, and the strength of the lower cavity is larger than that of the upper cavity. An energy absorption box upper plate capable of shielding part of the upper cavity is arranged at the front end of the energy absorption box. The energy absorption box is connected with the anti-collision beam, the strength of the lower cavity of the energy absorption box is larger than that of the upper cavity of the energy absorption box, the upper cavity is reinforced through the energy absorption box upper plate, the crumple stability of the energy absorption box is guaranteed, and the crumple success rate is increased.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to an anti-collision beam assembly and a vehicle. Background Art

[0002] As living standards improve, consumers are demanding higher levels of vehicle safety. As the primary load-bearing component in a collision, the vehicle body structure is attracting increasing attention. The front anti-collision beam assembly is a key factor in determining vehicle safety performance during a collision and a crucial component of the overall vehicle body structure. Its efficient and superior structure not only improves collision safety but also reduces after-sales repair costs and labor.

[0003] To meet collision and layout requirements, the energy absorption boxes of the traditional front bumper beam assembly structure are generally designed with large U-shaped cavities and complex crush structures on both sides. However, much of the crush space is wasted, the energy and force transmission efficiency is low, the manufacturing process is complex and costly, and the X- and Y-direction crush performance is poor. The bumper beam body and the energy absorption box are welded, resulting in high repair costs and labor hours after low-speed collisions. There are no safety hammers on either side of the bumper beam and the energy absorption box, and collision stability under small offset conditions cannot be guaranteed.

[0004] Therefore, it is necessary to provide an improved anti-collision beam assembly and a vehicle to solve the above problems. Utility Model Content

[0005] The present application provides an anti-collision beam assembly and a vehicle with high crush stability.

[0006] An embodiment of the present application provides an anti-collision beam assembly, including an anti-collision beam and an energy absorption box connected to the anti-collision beam; the energy absorption box includes a lower cavity and an upper cavity, the strength of the lower cavity is greater than the strength of the upper cavity; the front end of the energy absorption box is provided with an energy absorption box upper plate that can cover part of the upper cavity.

[0007] Furthermore, the side wall thickness of the lower cavity is greater than the side wall thickness of the upper cavity; the upper cavity includes a first cavity and a second cavity that are stacked; and the upper plate of the energy absorption box shields the first cavity.

[0008] Furthermore, the bottom wall and side wall of the lower cavity have the same thickness; the top wall and side wall of the upper cavity have the same thickness; a first transverse wall is provided between the upper cavity and the lower cavity, and a second transverse wall is provided between the first cavity and the second cavity; the first transverse wall and the second transverse wall have the same thickness and are located between the side wall thickness of the lower cavity and the side wall thickness of the upper cavity.

[0009] Furthermore, the front end of the energy absorption box has a slot matching the shape of the anti-collision beam, and the anti-collision beam is embedded in the slot; the upper plate of the energy absorption box is arranged flush with the front side of the anti-collision beam; the upper plate of the energy absorption box includes a main body that partially covers the upper cavity and an extension portion that extends beyond the upper cavity.

[0010] Furthermore, both ends of the anti-collision beam are tilted toward the rear side of the anti-collision beam, the ends of the anti-collision beam form an acute angle with the energy absorption box, and the ends of the anti-collision beam are provided with a safety hammer, which includes a fixing portion connected to the end of the anti-collision beam and an impact portion protruding from the anti-collision beam and arranged toward the rear of the energy absorption box.

[0011] Furthermore, the fixing part includes a clamping part and a base, the clamping part is provided with a cutout that can accommodate the rear wall of the anti-collision beam, and the clamping part and the rear wall of the anti-collision beam are fixed by bolts; the base is installed inside the anti-collision beam, and two through cavities are formed on the base; and the impact part is provided with a through cavity.

[0012] Furthermore, the rear of the energy absorption box is assembled with an energy absorption box bottom plate, which includes a main body portion that closes the upper cavity and the lower cavity, and an upper mounting block and a lower mounting block that extend from the main body into the upper cavity and the lower cavity respectively.

[0013] Furthermore, there are longitudinal beam mounting holes on the side walls of the lower cavity and the side walls of the upper cavity, and longitudinal beam fixing holes corresponding to the longitudinal beam mounting holes are provided on the upper mounting block and the lower mounting block; a safety hammer striking area is formed between the longitudinal beam mounting holes.

[0014] Furthermore, an upper connecting plate and a lower connecting plate are respectively provided on both sides of the energy absorption box, and the upper connecting plate and the lower connecting plate are respectively abutted against the outer sides of the top wall and the bottom wall of the anti-collision beam; the upper connecting plate and the lower connecting plate are fixed to the anti-collision beam by bolts.

[0015] Furthermore, bolt holes are provided on the upper connecting plate and the lower connecting plate; a sleeve for the bolt to pass through is provided in the anti-collision beam, and the upper and lower diameters of the sleeve are the same; the top wall and the middle part of the anti-collision beam are formed with a receiving hole for accommodating the sleeve, and the bottom wall of the anti-collision beam is formed with a through hole for the bolt to pass through, the diameter of the receiving hole is larger than the outer diameter of the sleeve, and the diameter of the through hole is smaller than the outer diameter of the sleeve; the diameter of the bolt hole is smaller than the outer diameter of the sleeve.

[0016] Furthermore, the energy absorption box is formed by extrusion of aluminum alloy, and the safety hammer is formed by extrusion of aluminum alloy.

[0017] An embodiment of the present application also provides a vehicle comprising the above-mentioned anti-collision beam assembly.

[0018] The energy absorption box of this application is connected to the anti-collision beam, effectively transmitting the impact force exerted on the anti-collision beam to the energy absorption box, causing the energy absorption box to collapse stably. Furthermore, the energy absorption box is provided with a lower cavity and an upper cavity. The lower cavity is stronger than the upper cavity, and the upper cavity is reinforced by the energy absorption box upper plate, which effectively transmits the impact force to the bottom of the energy absorption box, improving the collapse success rate and enhancing the anti-crushing ability of the anti-collision beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of an anti-collision beam assembly according to an exemplary embodiment of the present application.

[0020] Figure 2 yes Figure 1 A partial perspective view of the anti-collision beam assembly assembled to the vehicle body is shown.

[0021] Figure 3 yes Figure 2 A perspective view of the crash box is shown.

[0022] Figure 4 yes Figure 3 The three-dimensional view of the assembled energy absorption box and the upper plate of the energy absorption box is shown.

[0023] Figure 5 yes Figure 3 A three-dimensional view of the crash box bottom plate of the crash box shown.

[0024] Figure 6 yes Figure 1 A perspective view of the crash box is shown.

[0025] Figure 7 yes Figure 1 Side view of the impact beam assembly shown.

[0026] Figure 8 yes Figure 1 A partial top view of the anti-collision beam assembly is shown.

[0027] Figure 9 yes Figure 3 A cross-sectional view of the sleeve after assembly with the energy absorption box and anti-collision beam is shown.

[0028] Description of Figure Numbers:

[0029] 10. Anti-collision beam; 11. End; 111. Top wall; 112. Bottom wall; 113. Accommodation hole; 114. Perforation; 115. Incision; 116. Rear wall; 12. End; 13. Sleeve; 20. Energy absorption box; 201. First cavity; 202. Second cavity; 203. Notch; 204. Longitudinal beam mounting hole; 205. Safety hammer striking area; 21. Lower cavity; 211. Side wall; 212. Bottom wall; 213. First transverse wall; 22. Upper cavity; 221. Side wall; 222. Top wall; 223. Second transverse wall; 23. Energy absorption box upper plate; 231. Main body 232, extension portion; 233, mounting hole; 234, positioning hole; 24, energy absorption box bottom plate; 241, main body; 242, upper mounting block; 2421, longitudinal beam fixing hole; 243, lower mounting block; 2431, longitudinal beam fixing hole; 25, upper connecting plate; 251, bolt hole; 26, lower connecting plate; 261, bolt hole; 27, bolt; 28, nut; 30, front longitudinal beam; 40, safety hammer; 401, cavity; 402, cavity; 41, fixing portion; 411, clamping portion; 412, base; 413, cutout; 42, impact portion; 43, bolt. DETAILED DESCRIPTION

[0030] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0031] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0032] This application provides a vehicle including an anti-collision beam assembly. The primary function of the anti-collision beam assembly is to absorb and disperse impact energy during a collision, minimizing damage to the passenger compartment and other critical vehicle components. The anti-collision beam strengthens the vehicle's leading and trailing edges, enhancing overall rigidity and preventing deformation and damage during a collision. In the event of a collision, the anti-collision beam assembly helps maintain vehicle stability and prevent loss of control.

[0033] See also Figures 1 to 2As shown, the anti-collision beam assembly includes an anti-collision beam 10 and two energy absorption boxes 20 connected to the anti-collision beam 10. The rear portion of the energy absorption box 20 is connected to the front longitudinal beam 30. A safety hammer 40 is provided at the end of the anti-collision beam 10.

[0034] The anti-collision beam 10 is connected to two energy-absorbing boxes 20. In the event of a collision, the energy-absorbing boxes 20 can effectively absorb and transform the impact energy, thereby protecting the vehicle body and occupants. The rear of the energy-absorbing boxes 20 is connected to the front longitudinal beam 30, forming a more stable force transmission structure.

[0035] Please also see Figure 8 As shown, the anti-collision beam 10 includes an end portion 11 and an end portion 12, and the end portions 11 and 12 are arranged to be inclined toward the rear side of the anti-collision beam 10. That is, the anti-collision beam 10 is arc-shaped, the middle portion of the anti-collision beam 10 protrudes forward, and the end portions 11 and 12 are bent toward the rear side of the anti-collision beam 10. The end portions 11 and 12 of the anti-collision beam 10 form an acute angle with the energy absorption box 20.

[0036] The anti-collision beam 10 includes a top wall 111 and a bottom wall 112 disposed opposite each other. A receiving hole 113 is formed in the top wall 111 and the middle portion of the anti-collision beam 10. A through-hole 114 is provided in the bottom wall 112 of the anti-collision beam 10. A sleeve 13 is positioned within each of the receiving hole 113 and the through-hole 114. The sleeve 13 has the same diameter at the top and bottom. The diameter of the receiving hole 113 is larger than the outer diameter of the sleeve 13 to allow the sleeve 13 to extend into the receiving hole 113. The end portions 11 and 12 of the anti-collision beam 10 have inclined cutouts 115.

[0037] The anti-collision beam 10 is generally arc-shaped, with the middle portion of the anti-collision beam 10 protruding toward the direction of travel of the vehicle and the ends being retracted inward. In some embodiments, the anti-collision beam 10 can be made of a light metal alloy such as high-strength steel, fiberglass, or a high-strength composite material.

[0038] In the embodiment of the present application, the diameter of the receiving hole 113 is 20 mm, the outer diameter of the sleeve 13 is 19 mm, and the diameter of the through hole 114 is 14 mm. The diameter of the through hole 114 is smaller than the outer diameter of the sleeve 13, and the bottom wall 112 can provide support for the sleeve 13.

[0039] See also Figure 3 and Figure 4 As shown, the energy absorption box 20 includes a lower cavity 21 and an upper cavity 22. The strength of the lower cavity 21 is greater than that of the upper cavity 22. The upper cavity 22 includes a first cavity 201 and a second cavity 202 arranged in a stacked manner. The upper plate 23 of the energy absorption box shields the first cavity 201.

[0040] Crash box 20 is extruded from aluminum alloy. The present invention's structure is simple to manufacture. Compared to similar structures, it requires only one extrusion die, eliminating the multiple stamping and welding steps, resulting in lower costs. Aluminum alloy offers excellent lightweighting, reducing weight by 20% compared to traditional crash boxes, while also reducing mold development costs.

[0041] The sidewall 211 of the lower cavity 21 is thicker than the sidewall 221 of the upper cavity 22. The bottom wall 212 of the lower cavity 21 is the same thickness as the sidewall 211. The top wall 222 of the upper cavity 22 is the same thickness as the sidewall 221.

[0042] A first transverse wall 213 is disposed between the upper cavity 22 and the lower cavity 21, and a second transverse wall 223 is disposed between the first cavity 201 and the second cavity 202. The first transverse wall 213 and the second transverse wall 223 have the same thickness and are located between the thickness of the sidewall 211 of the lower cavity 21 and the sidewall 221 of the upper cavity 22.

[0043] According to one embodiment of the present application, the thickness of the side wall 211 and the bottom wall 212 may be 2.7 mm, the thickness of the side wall 221 and the top wall 222 may be 1.7 mm, and the thickness of the first transverse wall 213 and the second transverse wall 223 may be 25 mm.

[0044] The front end of the crash box 20 features a notch 203 shaped to match the shape of the anti-collision beam 10, into which the anti-collision beam 10 fits. A top plate 23 shields the upper cavity 22 at the front end of the crash box 20. This top plate 23 reinforces the upper cavity 22, ensuring the stability of the crash box 20 upon contact with the barrier and improving its collapse success rate. Furthermore, the crash box 20 boasts a simple and efficient structure, effectively converting collision forces into a collapse path, resulting in evenly distributed forces and high collapse stability.

[0045] Side rail mounting holes 204 are formed on the sidewalls 211 of the lower cavity 21 and the sidewalls 221 of the upper cavity 22. A safety hammer strike zone 205 is formed between the side rail mounting holes 204. During a vehicle collision, the front force exerted on the anti-collision beam 10 compresses the energy box 20 in the X-direction. After the energy box 20 collapses 10 to 20 mm in the X-direction, the safety hammer 40 strikes the safety hammer strike zone 205 of the energy box 20, causing it to partially collapse in the Y-direction.

[0046] The upper plate 23 of the crash box is flush with the front side of the anti-collision beam 10, forming an acute angle with the crash box 20. The upper plate 23 includes a main portion 231 that partially shields the upper cavity 22 and an extension 232 that extends beyond the upper cavity 22. The main portion 231 is rectangular and is provided with a pair of mounting holes 233 and a pair of positioning holes 234.

[0047] See also Figure 5 and Figure 9 As shown, a crash box base plate 24 is assembled at the rear of the crash box 20. The crash box base plate 24 includes a main body 241 that encloses the upper cavity 22 and the lower cavity 21, and an upper mounting block 242 and a lower mounting block 243 that extend from the main body 241 into the upper cavity 22 and the lower cavity 21, respectively. The upper mounting block 242 and the lower mounting block 243 are provided with longitudinal beam fixing holes 2421 and 2431 corresponding to the longitudinal beam mounting holes 204.

[0048] Both upper and lower mounting blocks 242 and 243 extend into their respective cavities, allowing for easy docking of the longitudinal beam's fixing holes 2421 and 2431, simplifying installation and enhancing maintenance convenience. The design of the crash box base plate 24 enhances the energy absorption capacity of the crash box 20, effectively directing and dispersing impact forces and reducing the impact on other vehicle body components.

[0049] The energy box 20 is flanked by an upper connecting plate 25 and a lower connecting plate 26, which rest against the outer sides of the top wall 111 and bottom wall 112 of the anti-collision beam 10, respectively. The upper and lower connecting plates 25, 26 are secured to the anti-collision beam 10 via bolts 27. The energy box 20 is bolted to the anti-collision beam 10, rather than welded, reducing after-sales repair costs and labor. The connection between the anti-collision beam and the energy box is simple in design, requiring only a single sleeve for assembly and meeting the Z-axis crush test requirements of the anti-collision beam.

[0050] The upper connecting plate 25 and the lower connecting plate 26 are provided with bolt holes 251 and bolt holes 261. The bolt 27 extends into the sleeve 13 in the receiving hole 113 and passes through the through hole 114. The bolt 27 extends from the through hole 114, and the lower end of the bolt 27 is locked by a nut 28.

[0051] See also Figures 6 to 8 As shown, the safety hammer 40 includes a fixing portion 41 connected to the two ends 11 and 12 of the anti-collision beam 10, and an impact portion 42 protruding from the anti-collision beam 10 and arranged toward the rear of the crash box 20. The fixing portion 41 includes a clamping portion 411 and a base portion 412. The clamping portion 411 is provided with a cutout 413 that can accommodate the rear wall 116 of the anti-collision beam 10. The clamping portion 411 and the rear wall 116 of the anti-collision beam 10 are fixed by bolts 43.

[0052] The base 412 is mounted within the anti-collision beam 10. Two vertically extending cavities 401 are formed on the base 412. The impact portion 42 also has a vertically extending cavity 402. Alternatively, the impact portion 42 may have multiple through-cavities 402. In this application, the safety hammer 40 collapses along the Y-direction, compressing cavities 401 and 402 to ensure stability during collision conditions. The guiding action of the safety hammer 40 effectively improves collision efficiency and prevents damage to occupants in the passenger compartment.

[0053] In the embodiment of the present application, the safety hammer 40 is formed by extrusion of aluminum alloy, and the aluminum alloy material has a good lightweight effect.

[0054] The energy absorption box 20 of the present application is connected to the anti-collision beam 10, effectively transmitting the collision force exerted on the anti-collision beam 10 to the energy absorption box 20, causing the energy absorption box 20 to collapse stably. Furthermore, the energy absorption box 20 is provided with a lower cavity 21 and an upper cavity 22. The lower cavity 21 is stronger than the upper cavity 22, and the upper cavity 22 is reinforced by the energy absorption box upper plate 23. This effectively transmits the collision force to the bottom of the energy absorption box, improves the collapse success rate, and enhances the anti-crushing capability of the anti-collision beam 10.

[0055] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. An anti-collision beam assembly, characterized in that: It includes an anti-collision beam and an energy absorption box connected to the anti-collision beam; the energy absorption box includes a lower cavity and an upper cavity, the strength of the lower cavity is greater than the strength of the upper cavity; the front end of the energy absorption box is provided with an energy absorption box upper plate that can cover part of the upper cavity.

2. The anti-collision beam assembly according to claim 1, characterized in that: The side wall thickness of the lower cavity is greater than the side wall thickness of the upper cavity; the upper cavity includes a first cavity and a second cavity that are stacked; and the upper plate of the energy absorption box shields the first cavity.

3. The anti-collision beam assembly according to claim 2, characterized in that: The bottom wall and side wall of the lower cavity have the same thickness; the top wall and side wall of the upper cavity have the same thickness; a first transverse wall is provided between the upper cavity and the lower cavity, and a second transverse wall is provided between the first cavity and the second cavity; the first transverse wall and the second transverse wall have the same thickness and are located between the thickness of the side wall of the lower cavity and the thickness of the side wall of the upper cavity.

4. The anti-collision beam assembly according to claim 1, characterized in that: The front end of the energy absorption box has a slot that matches the shape of the anti-collision beam, and the anti-collision beam is embedded in the slot; the upper plate of the energy absorption box is arranged flush with the front side of the anti-collision beam; the upper plate of the energy absorption box includes a main body that partially covers the upper cavity and an extension that extends beyond the upper cavity.

5. The anti-collision beam assembly according to claim 1, characterized in that: The two ends of the anti-collision beam are inclined toward the rear side of the anti-collision beam, and the ends of the anti-collision beam form an acute angle with the energy absorption box; a safety hammer is provided at the end of the anti-collision beam, and the safety hammer includes a fixing part connected to the end of the anti-collision beam and an impact part protruding from the anti-collision beam and arranged toward the rear of the energy absorption box.

6. The anti-collision beam assembly according to claim 5, characterized in that: The fixing part includes a clamping part and a base, the clamping part is provided with a cutout that can accommodate the rear wall of the anti-collision beam, and the clamping part and the rear wall of the anti-collision beam are fixed by bolts; the base is installed inside the anti-collision beam, and two through cavities are formed on the base; the impact part is provided with a through cavity.

7. The anti-collision beam assembly according to claim 5, characterized in that: The rear part of the energy absorption box is assembled with an energy absorption box bottom plate, which includes a main body portion closing the upper cavity and the lower cavity, and an upper mounting block and a lower mounting block extending from the main body into the upper cavity and the lower cavity respectively.

8. The anti-collision beam assembly according to claim 7, characterized in that: The side walls of the lower cavity and the upper cavity are both provided with longitudinal beam mounting holes, and the upper mounting block and the lower mounting block are provided with longitudinal beam fixing holes corresponding to the longitudinal beam mounting holes; a safety hammer striking area is formed between the longitudinal beam mounting holes.

9. The anti-collision beam assembly according to claim 1, characterized in that: An upper connecting plate and a lower connecting plate are respectively provided on both sides of the energy absorption box, and the upper connecting plate and the lower connecting plate are respectively abutted against the outer sides of the top wall and the bottom wall of the anti-collision beam; the upper connecting plate and the lower connecting plate are fixed to the anti-collision beam by bolts.

10. The anti-collision beam assembly according to claim 9, characterized in that: Bolt holes are provided on the upper connecting plate and the lower connecting plate; a sleeve for the bolt to pass through is provided in the anti-collision beam, and the upper and lower diameters of the sleeve are the same; the top wall and the middle part of the anti-collision beam are formed with a receiving hole for accommodating the sleeve, and the bottom wall of the anti-collision beam is formed with a through hole for the bolt to pass through, the diameter of the receiving hole is larger than the outer diameter of the sleeve, and the diameter of the through hole is smaller than the outer diameter of the sleeve; the diameter of the bolt hole is smaller than the outer diameter of the sleeve.

11. The anti-collision beam assembly according to claim 5, characterized in that: The energy absorption box is formed by extrusion of aluminum alloy, and the safety hammer is formed by extrusion of aluminum alloy.

12. A vehicle, characterized in that: It comprises the anti-collision beam assembly according to any one of claims 1 to 11.

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