Automobile anti-collision beam

Abstract

This invention provides an automotive anti-collision beam, comprising an anti-collision beam body, two energy-absorbing boxes, and two mounting plates. One end of the rear side of the anti-collision beam body is connected to one of the mounting plates via one of the energy-absorbing boxes, and the other end of the rear side of the anti-collision beam body is connected to the other mounting plate via the other energy-absorbing box. Each energy-absorbing box includes an upper U-shaped plate and a lower U-shaped plate, with the openings of the upper U-shaped plate and the lower U-shaped plate facing each other. The inner wall surface of the side plate of the upper U-shaped plate is designed to fit against the outer wall surface of the side plate of the lower U-shaped plate. The vertical distance between the bottom plates of the upper and lower U-shaped plates is adjustable. This automotive anti-collision beam has good versatility and can effectively reduce the development cost of vehicle bodies.

Description

Technical Field

[0001] This invention belongs to the field of automotive body technology, specifically relating to an automotive anti-collision beam. Background Technology

[0002] With the continuous development of the automotive industry, the market demands higher and higher requirements for the collision safety performance of automobiles. As a safety performance component, the anti-collision beam directly affects the collision safety performance of the vehicle body. At the same time, as consumers in the market have increasingly refined, customized and personalized demands for vehicle models, the same model needs to meet the different collision safety performance requirements of different consumers, which puts forward higher requirements for automotive anti-collision beams.

[0003] Anti-collision beams play a decisive role in low-speed automotive collisions and are also crucial for energy absorption and force transmission in high-speed collisions. They protect the vehicle's lighting, doors, fuel, cooling, transmission, suspension, steering, and braking systems, ensuring their proper functioning and thus protecting occupants. Current anti-collision beams generally consist of a beam body, an energy-absorbing box, and a mounting plate. The energy-absorbing box is a one-piece structure, with its two ends welded to the beam body and mounting plate, respectively. This design lacks versatility and cannot meet the diverse collision safety performance requirements of different vehicles. Only by developing energy-absorbing boxes of different sizes can vehicles with varying collision safety performance needs be accommodated. However, this requires the development of numerous molds and tooling, leading to high vehicle body development costs. Therefore, designing an automotive anti-collision beam with better versatility, capable of meeting diverse collision safety performance requirements while reducing vehicle body development costs, has become a pressing technical problem for those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive anti-collision beam to solve the aforementioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A car anti-collision beam includes an anti-collision beam body, two energy-absorbing boxes, and two mounting plates. One end of the rear side of the anti-collision beam body is connected to one of the mounting plates via one of the energy-absorbing boxes, and the other end of the rear side of the anti-collision beam body is connected to the other mounting plate via the other energy-absorbing box. Each energy-absorbing box includes an upper U-shaped plate and a lower U-shaped plate. The openings of the upper U-shaped plate and the lower U-shaped plate are opposite to each other. The inner wall of the side plate of the upper U-shaped plate is used to fit against the outer wall of the side plate of the lower U-shaped plate. The vertical distance between the bottom plate of the upper U-shaped plate and the bottom plate of the lower U-shaped plate is adjustable.

[0007] Preferably, the bottom plate of the upper U-shaped plate has a first connecting lug at its front end, and the upper part of the anti-collision beam body has at least two first connecting grooves for cooperating with the first connecting lug, each of the first connecting grooves being distributed in the vertical direction of the upper part of the anti-collision beam body; the bottom plate of the upper U-shaped plate has a second connecting lug at its rear end, and the mounting plate has at least two second connecting grooves for cooperating with the second connecting lug, each of the second connecting grooves being distributed in the vertical direction of the upper part of the mounting plate; the bottom plate of the lower U-shaped plate has a first mounting lug at its front end, and the anti-collision beam body has at least two first mounting grooves for cooperating with the first mounting lug, each of the first mounting grooves being distributed in the vertical direction of the lower part of the anti-collision beam body; the bottom plate of the lower U-shaped plate has a second mounting lug at its rear end, and the mounting plate has at least two second mounting grooves for cooperating with the second mounting lug, each of the second mounting grooves being distributed in the vertical direction of the lower part of the mounting plate.

[0008] Preferably, the first connecting lug and the second connecting lug are symmetrically arranged at the front end and rear end of the bottom plate of the upper U-shaped plate.

[0009] Preferably, the first connecting ear is located at the middle of the front end of the bottom plate of the upper U-shaped plate, and the second connecting ear is located at the middle of the rear end of the bottom plate of the upper U-shaped plate.

[0010] Preferably, the first mounting lug and the second mounting lug are symmetrically arranged at the front and rear ends of the bottom plate of the lower U-shaped plate.

[0011] Preferably, the first mounting ear is located at the middle of the front end of the bottom plate of the lower U-shaped plate, and the second mounting ear is located at the middle of the rear end of the bottom plate of the lower U-shaped plate.

[0012] Preferably, the first connecting ear is opposite to the first mounting ear, and the second connecting ear is opposite to the second mounting ear.

[0013] Preferably, the anti-collision beam body includes an arc-shaped plate, a first U-shaped beam, and a second U-shaped beam. The first U-shaped beam is disposed on the upper part of the rear side of the arc-shaped plate, and the second U-shaped beam is disposed on the lower part of the rear side of the arc-shaped plate. The openings of the first U-shaped beam and the second U-shaped beam face the arc-shaped plate, and the extension directions of the first U-shaped beam and the second U-shaped beam are the same as the extension direction of the arc-shaped plate. The lower end of the first U-shaped beam and the upper end of the second U-shaped beam are connected by a connecting plate, and the connecting plate is connected to the middle part of the rear side of the arc-shaped plate.

[0014] Preferably, the front end of the energy-absorbing box is welded to the rear side of the anti-collision beam body, and the rear end of the energy-absorbing box is welded to the mounting plate.

[0015] Preferably, the mounting plate has connection holes at both the upper and lower parts.

[0016] The beneficial effects of this invention are as follows:

[0017] The automotive anti-collision beam of the present invention has an energy-absorbing box comprising an upper U-shaped plate and a lower U-shaped plate. The openings of the upper U-shaped plate and the lower U-shaped plate are opposite to each other. The inner wall surface of the side plate of the upper U-shaped plate is in contact with the outer wall surface of the side plate of the lower U-shaped plate, that is, the upper end of the lower U-shaped plate is located in the middle of the lower end of the upper U-shaped plate. At the same time, the vertical distance between the bottom plate of the upper U-shaped plate and the bottom plate of the lower U-shaped plate is adjustable. Thus, in use, only the vertical distance between the bottom plates of the upper U-shaped plate and the bottom plate of the lower U-shaped plate needs to be adjusted to adjust the size of the energy-absorbing box. This makes the automotive anti-collision beam more versatile and can meet the collision safety performance requirements of different vehicles. In addition, it eliminates the need to develop a large number of molds and tooling, effectively reducing the development cost of the vehicle body. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0019] Figure 1 A schematic diagram of an automotive anti-collision beam provided in an embodiment of the present invention;

[0020] Figure 2 An exploded view of a car crash beam provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of an energy-absorbing box provided in an embodiment of the present invention;

[0022] Figure 4 This is a front view of the energy-absorbing box provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the upper U-shaped plate provided in an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the lower U-shaped plate provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of one end of the rear side of the anti-collision beam body provided in an embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the mounting plate provided in an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of energy-absorbing boxes of different sizes provided in embodiments of the present invention.

[0028] Marked in the attached diagram:

[0029] 11. Anti-collision beam body; 12. Curved plate; 13. First U-shaped beam; 14. Second U-shaped beam.

[0030] 15. Connecting plate; 16. First connecting groove; 17. First mounting groove;

[0031] 21. Energy-absorbing box; 22. Upper U-shaped plate; 221. Base plate of the upper U-shaped plate.

[0032] 222. Side panel of the upper U-shaped plate; 223. First connecting lug; 224. Second connecting lug.

[0033] 23. Lower U-shaped panel; 231. Base plate of the lower U-shaped panel; 232. Side plate of the lower U-shaped panel.

[0034] 233. First, install the mounting ear; 234. Second, install the mounting ear;

[0035] 31. Mounting plate; 32. Second connecting groove; 33. Second mounting groove; 34. Connecting hole. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of the present invention, the present solution will be further described in detail below with reference to specific embodiments.

[0037] like Figures 1 to 8 As shown, this embodiment of the invention provides an automotive anti-collision beam, which includes an anti-collision beam body 11, two energy-absorbing boxes 21, and two mounting plates 31. One end of the rear side of the anti-collision beam body 11 is connected to one of the mounting plates through one of the energy-absorbing boxes, and the other end of the rear side of the anti-collision beam body 11 is connected to another mounting plate through another energy-absorbing box. The energy-absorbing box includes an upper U-shaped plate 22 and a lower U-shaped plate 23. The opening of the upper U-shaped plate is opposite to the opening of the lower U-shaped plate. The inner wall surface of the side plate 222 of the upper U-shaped plate is used to fit against the outer wall surface of the side plate 232 of the lower U-shaped plate. The vertical distance between the bottom plate 221 of the upper U-shaped plate and the bottom plate 231 of the lower U-shaped plate is adjustable.

[0038] The automotive anti-collision beam provided in this embodiment of the invention includes an energy-absorbing box comprising an upper U-shaped plate 22 and a lower U-shaped plate 23. The openings of the upper U-shaped plate and the lower U-shaped plate are opposite each other. The inner wall surface of the side plate of the upper U-shaped plate is in contact with the outer wall surface of the side plate of the lower U-shaped plate, that is, the upper end of the lower U-shaped plate is located in the lower end of the upper U-shaped plate. At the same time, the vertical distance between the bottom plate of the upper U-shaped plate and the bottom plate of the lower U-shaped plate is adjustable. Thus, in use, only the vertical distance between the bottom plate 221 of the upper U-shaped plate and the bottom plate 231 of the lower U-shaped plate needs to be adjusted to adjust the size of the energy-absorbing box. This makes the automotive anti-collision beam more versatile and able to meet the collision safety performance requirements of different vehicles. In this way, there is no need to develop a large number of molds and tooling, effectively reducing the development cost of the vehicle body.

[0039] Furthermore, the front end of the bottom plate 221 of the upper U-shaped plate is provided with a first connecting lug 223, and the upper part of the anti-collision beam body is provided with at least two first connecting grooves 16 for cooperating with the first connecting lugs, each of the first connecting grooves being distributed in the vertical direction of the upper part of the anti-collision beam body; the rear end of the bottom plate of the upper U-shaped plate is provided with a second connecting lug 224, and the mounting plate is provided with at least two second connecting grooves 32 for cooperating with the second connecting lugs, each of the second connecting grooves being distributed in the vertical direction of the upper part of the mounting plate; the front end of the bottom plate 231 of the lower U-shaped plate is provided with a first mounting lug 233, and the anti-collision beam body is provided with at least two first mounting grooves 17 for cooperating with the first mounting lugs, each of the first mounting grooves being distributed in the vertical direction of the lower part of the anti-collision beam body; the rear end of the bottom plate of the lower U-shaped plate is provided with a second mounting lug 234, and the mounting plate is provided with at least two second mounting grooves 33 for cooperating with the second mounting lugs, each of the second mounting grooves being distributed in the vertical direction of the lower part of the mounting plate. This design allows for easy adjustment of the vertical distance between the bottom plates of the upper and lower U-shaped panels. In use, simply aligning the first connecting lug with different first connecting slots, or aligning the first mounting lug with different first mounting slots, adjusts the vertical distance between the bottom plates of the upper and lower U-shaped panels. This allows the bottom plates to move closer or further apart, thus adjusting the cross-sectional and longitudinal dimensions of the energy-absorbing box formed by the upper and lower U-shaped panels, resulting in different collision performance characteristics for the anti-collision beam. It is understood that when the first connecting lug aligns with different first connecting slots, the vertical position of the second connecting lug also changes to align with the corresponding second connecting slot; similarly, when the first mounting lug aligns with different first mounting slots, the vertical position of the second mounting lug also changes to align with the corresponding second mounting slot.

[0040] Specifically, the first connecting lug 223 and the second connecting lug 224 are symmetrically arranged at the front end and rear end of the bottom plate of the upper U-shaped plate.

[0041] Preferably, the first connecting lug 223 is located at the middle of the front end of the bottom plate of the upper U-shaped plate, and the second connecting lug 224 is located at the middle of the rear end of the bottom plate of the upper U-shaped plate. It can be understood that the second connecting groove can be located at the middle of the upper part of the mounting plate.

[0042] Specifically, the first mounting ear 233 and the second mounting ear 234 are symmetrically arranged at the front end and rear end of the bottom plate of the lower U-shaped plate.

[0043] Preferably, the first mounting ear 233 is located at the middle of the front end of the bottom plate of the lower U-shaped plate, and the second mounting ear 234 is located at the middle of the rear end of the bottom plate of the lower U-shaped plate. It can be understood that the second mounting groove can be located at the middle of the lower part of the mounting plate.

[0044] Specifically, the first connecting lug 223 is opposite to the first mounting lug 233, and the second connecting lug 224 is opposite to the second mounting lug 234, thereby enabling better positioning of the energy-absorbing box and the anti-collision beam body and mounting plate.

[0045] Understandably, once the vertical distance between the bottom plate 221 of the upper U-shaped plate and the bottom plate 231 of the lower U-shaped plate is determined, the side plates of the upper U-shaped plate and the side plates of the lower U-shaped plate can be welded together, thereby making the energy-absorbing box formed by the upper U-shaped plate and the lower U-shaped plate have better overall strength and better impact resistance.

[0046] Furthermore, the anti-collision beam body 11 includes an arc-shaped plate 12, a first U-shaped beam 13, and a second U-shaped beam 14. The first U-shaped beam is disposed on the upper part of the rear side of the arc-shaped plate, and the second U-shaped beam is disposed on the lower part of the rear side of the arc-shaped plate. The openings of the first U-shaped beam and the second U-shaped beam face the arc-shaped plate, and their extension directions are the same as the extension direction of the arc-shaped plate. The lower end of the first U-shaped beam and the upper end of the second U-shaped beam are connected by a connecting plate 15, which is connected to the middle of the rear side of the arc-shaped plate. With this design, the first U-shaped beam and the arc-shaped plate can each form a box-shaped structure, giving the anti-collision beam body two box-shaped structures. The two box-shaped structures are connected together by the connecting plate, thereby increasing the strength of the anti-collision beam body 11.

[0047] Preferably, each of the first connecting grooves 16 can be evenly distributed in the vertical direction of the first U-shaped beam, and each of the first mounting grooves 17 can be evenly distributed in the vertical direction of the second U-shaped beam; the arc plate, the first U-shaped beam, the second U-shaped beam and the connecting plate are an integral structure, thereby further improving the strength of the anti-collision beam body.

[0048] Furthermore, the front end of the energy-absorbing box 21 is welded to the rear side of the anti-collision beam body 11, and the rear end of the energy-absorbing box 21 is welded to the mounting plate 31, thereby making the connection between the energy-absorbing box, the anti-collision beam body, and the mounting plate more secure and reliable, thus effectively improving the strength of the car anti-collision beam.

[0049] Specifically, the mounting plate 31 is provided with connecting holes 34 at both its upper and lower parts, thereby facilitating the connection between the mounting plate and the vehicle body longitudinal beam. Preferably, the mounting plate has two connecting holes at both its upper and lower parts, which effectively improves the reliability of the connection between the mounting plate and the vehicle body.

[0050] Preferably, the front and rear ends of the energy-absorbing box 21 are perpendicularly connected to the rear side of the anti-collision beam body 11 and the mounting plate 31, respectively.

[0051] In use, this invention allows for the insertion of the first connecting lug 223 into different first connecting slots 16 and / or the insertion of the first mounting lug 233 into different first mounting slots 17, depending on the collision safety performance requirements of different vehicles. This adjusts the vertical distance between the bottom plates of the upper and lower U-shaped plates, thereby adjusting the cross-sectional and longitudinal dimensions of the energy-absorbing box formed by the upper and lower U-shaped plates. Consequently, the collision resistance of the energy-absorbing box is adjusted, ensuring that the collision safety performance of the automotive anti-collision beam meets the requirements. Furthermore, the side plates of the upper and lower U-shaped plates are welded together, and the front ends of the upper and lower U-shaped plates are welded to the anti-collision beam body, while the rear ends of the upper and lower U-shaped plates are welded to the mounting plate, thus fabricating an automotive anti-collision beam.

[0052] In one specific embodiment, the number of the first connecting slot and the second connecting slot 32, the first mounting slot and the second mounting slot 33 can both be three. This is achieved by having the first connecting lug mate with different first connecting slots, and / or having the first mounting lug mate with different first mounting slots, such as... Figure 9 As shown, nine different energy-absorbing boxes can be combined, allowing the automotive crash beams composed of different energy-absorbing boxes to well meet the needs of vehicles with different collision safety performance requirements.

[0053] The automotive anti-collision beam of the present invention only requires the development of one anti-collision beam body, mounting plate, upper U-shaped plate and lower U-shaped plate, which can be combined to form different energy-absorbing boxes to match the needs of vehicles with different collision safety performance requirements. This achieves better generalization of automotive anti-collision beams and greatly reduces development costs.

[0054] The above are merely preferred embodiments of the present invention. It should be noted that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Moreover, after reading the contents of the present invention, those skilled in the art can make various modifications or alterations to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A car anti-collision beam, characterized in that, It includes a crash beam body, two energy-absorbing boxes, and two mounting plates. One end of the rear side of the crash beam body is connected to one of the mounting plates via one of the energy-absorbing boxes, and the other end of the rear side of the crash beam body is connected to the other mounting plate via the other energy-absorbing box. Each energy-absorbing box includes an upper U-shaped plate and a lower U-shaped plate. The openings of the upper U-shaped plate and the lower U-shaped plate are opposite to each other. The inner wall of the side plate of the upper U-shaped plate is used to fit against the outer wall of the side plate of the lower U-shaped plate. The vertical distance between the bottom plate of the upper U-shaped plate and the bottom plate of the lower U-shaped plate is adjustable. The upper U-shaped plate has a first connecting lug at its front end and at least two first connecting slots on its upper part for engaging with the first connecting lug, each first connecting slot being distributed vertically on the upper part of the anti-collision beam body. The lower U-shaped plate has a first mounting lug at its front end and at least two first mounting slots on its anti-collision beam body for engaging with the first mounting lug, each second mounting slot being distributed vertically on the upper part of the mounting plate. The lower U-shaped plate has a second mounting lug at its rear end and at least two second mounting slots on its mounting plate for engaging with the second mounting lug, each second mounting slot being distributed vertically on the lower part of the anti-collision beam body. The first connecting lug and the second connecting lug are symmetrically arranged at the front and rear ends of the bottom plate of the upper U-shaped plate; The first connecting lug is located at the middle of the front end of the bottom plate of the upper U-shaped plate, and the second connecting lug is located at the middle of the rear end of the bottom plate of the upper U-shaped plate. The first mounting lug and the second mounting lug are symmetrically arranged at the front and rear ends of the bottom plate of the lower U-shaped plate; The first mounting ear is located at the middle of the front end of the bottom plate of the lower U-shaped plate, and the second mounting ear is located at the middle of the rear end of the bottom plate of the lower U-shaped plate.

2. The automotive anti-collision beam according to claim 1, characterized in that, The first connecting ear is opposite to the first mounting ear, and the second connecting ear is opposite to the second mounting ear.

3. The automotive anti-collision beam according to claim 1, characterized in that, The anti-collision beam body includes an arc-shaped plate, a first U-shaped beam, and a second U-shaped beam. The first U-shaped beam is disposed on the upper part of the rear side of the arc-shaped plate, and the second U-shaped beam is disposed on the lower part of the rear side of the arc-shaped plate. The openings of the first U-shaped beam and the second U-shaped beam face the arc-shaped plate, and the extension directions of the first U-shaped beam and the second U-shaped beam are the same as the extension direction of the arc-shaped plate. The lower end of the first U-shaped beam and the upper end of the second U-shaped beam are connected by a connecting plate, and the connecting plate is connected to the middle part of the rear side of the arc-shaped plate.

4. The automotive anti-collision beam according to claim 1, characterized in that, The front end of the energy-absorbing box is welded to the rear side of the anti-collision beam body, and the rear end of the energy-absorbing box is welded to the mounting plate.

5. The automotive anti-collision beam according to claim 1, characterized in that, The mounting plate has connection holes at both the top and bottom.

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