A kind of vice anticollision beam assembly and car

Abstract

The application relates to a front anti-collision beam structure of an automobile, in particular to a sub anti-collision beam assembly and an automobile, which comprises a sub anti-collision beam and an energy absorption box arranged in the groove surface of the two ends of the sub anti-collision beam, the energy absorption box comprises an upper plate and a lower plate, the cross section of the upper plate and the lower plate is U-shaped, a plurality of concave-convex ribs are arranged on the upper plate and the lower plate, the height of one end of the upper plate and the lower plate is lower than the height of the other end, the higher end of the upper plate is connected with the lower end of the lower plate, so that a square hollow tube with a plurality of ring structures is formed, the end of the energy absorption box away from the sub anti-collision beam is connected with an energy absorption box mounting plate, and convex welding studs are arranged on the energy absorption box mounting plate, so that the sub anti-collision beam assembly and a front sub frame assembly can be pre-positioned when assembled through the convex welding studs. The sub anti-collision beam assembly is firm in connection, high in energy absorption effect, convenient in assembly and low in cost.

Description

Technical Field

[0001] This invention relates to the structure of a front bumper beam for automobiles, and more specifically to a sub-bumper beam assembly and an automobile. Background Technology

[0002] Currently, vehicle safety is receiving increasing attention, with higher and higher requirements for collision safety. Two-vehicle collisions are frequent in traffic accidents, and when two vehicles collide during travel, significant intrusion occurs, seriously affecting the safety of occupants. Automakers are currently seeking ways to improve vehicle collision safety to mitigate the safety issues caused by collision intrusion. One solution is to add a secondary anti-collision beam assembly below the front bumper beam, connecting it to the vehicle body or front subframe assembly. The arrangement of the upper and lower anti-collision beams effectively increases the collision contact area, minimizing collision intrusion and thus effectively protecting occupant safety.

[0003] In existing technologies, the crossbeams of the sub-collision beam assemblies are generally arc-shaped plate structures or arc-shaped hollow tube structures. Arc-shaped plate structures have low structural strength and are easily damaged during vehicle collisions, making it difficult to achieve good energy absorption. Arc-shaped hollow tube structures are limited by molding processes, making them difficult to manufacture. Furthermore, the energy-absorbing boxes on the sub-collision beam assembly only have crumple zones, resulting in poor crumple zone energy absorption. Additionally, assembling the sub-collision beam assembly with the front subframe assembly is difficult. Summary of the Invention

[0004] One objective of this invention is to provide a sub-collision beam assembly to solve the problems of the existing sub-collision beam structure being limited by the molding process, having poor energy absorption effect due to the collapse of the energy absorption box, and lacking a pre-positioning function and having low assembly efficiency during assembly; the second objective is to provide an automobile.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A secondary anti-collision beam assembly includes a secondary anti-collision crossbeam and energy-absorbing boxes disposed in the grooves at both ends of the secondary anti-collision crossbeam. Each energy-absorbing box includes an upper energy-absorbing box plate and a lower energy-absorbing box plate. The cross-section of the upper energy-absorbing box plate and the lower energy-absorbing box plate is U-shaped. The upper energy-absorbing box plate and the lower energy-absorbing box plate are respectively provided with a plurality of concave and convex ribs. One end of the upper energy-absorbing box plate and the lower energy-absorbing box plate are lower than the other end. The higher end of the upper energy-absorbing box plate and the lower end of the lower energy-absorbing box plate are connected by the plurality of concave and convex ribs, so as to form a square hollow tube with a multi-ring structure of concave and convex ribs. The end of the energy-absorbing box away from the secondary anti-collision crossbeam is connected to an energy-absorbing box mounting plate. The energy-absorbing box mounting plate is provided with projection weld studs, so as to form a pre-position when the secondary anti-collision beam assembly is assembled with the front subframe assembly.

[0007] According to the above technical means, the upper and lower plates of the energy-absorbing box of the present invention are provided with a plurality of concave and convex ribs. After the upper and lower plates are connected, an energy-absorbing box with a square hollow tube structure having multiple concave and convex ribs surrounding the outer circumference of the energy-absorbing box is formed. Based on the concave and convex ribs that can surround the four sides of the energy-absorbing box, a good collapse energy absorption effect can be achieved. The two ends of the upper and lower plates of the energy-absorbing box are at different heights, so that the weld between the upper and lower plates forms an angle with the central axis of the energy-absorbing box in the length direction, which can effectively disperse the force of the collision, thereby reducing the force transmitted to the longitudinal beam of the vehicle. In addition, the energy-absorbing box is installed in the grooved surfaces at both ends of the sub-anti-collision crossbeam, which can effectively avoid the risk of weld detachment during the collision, ensure the unobstructed force transmission path, facilitate welding, and make it look aesthetically pleasing. By setting projection weld studs on the energy-absorbing box mounting plate, it is convenient to connect the projection weld studs to the positioning holes of the front subframe assembly when installing the sub-bumper beam assembly, so as to pre-position the sub-bumper beam assembly and the front subframe assembly, thus reducing the installation difficulty.

[0008] Furthermore, the outer circumferential surface of the energy-absorbing box is provided with concave ribs on the upper and lower surfaces near the mounting plate of the energy-absorbing box, and convex ribs on both sides. The upper and lower surfaces near the secondary anti-collision beam are provided with convex ribs, and concave ribs on both sides, and the corners are all formed with transition rounded corners.

[0009] Based on the above technical means, the position of the concave and convex ribs on the energy-absorbing box is defined. The concave and convex ribs can guide the direction of force transmission, enhance the collapse and energy absorption effect of the energy-absorbing box, and assist in the positioning and connection of the upper and lower plates of the energy-absorbing box, ensuring the accuracy of the connection.

[0010] Furthermore, the top surface of the upper plate of the energy-absorbing box is provided with multiple positioning holes, and the bottom surface of the lower plate of the energy-absorbing box is provided with multiple positioning holes.

[0011] Based on the above-mentioned technical means, the upper and lower plates of the energy-absorbing box can be welded with the aid of positioning holes, thereby ensuring the accuracy and stability of the welding and reducing the labor intensity of workers.

[0012] Furthermore, the upper plate of the energy-absorbing box is wider than the lower plate of the energy-absorbing box, so that the upper plate of the energy-absorbing box can be engaged with both sides of the lower plate of the energy-absorbing box in the width direction by means of the ribs.

[0013] Based on the above technical means, the upper plate and lower plate of the energy-absorbing box can be pre-positioned and connected by concave and convex ribs, which restricts the front-back and left-right displacement of the upper plate and lower plate of the energy-absorbing box, thereby facilitating subsequent welding work.

[0014] Furthermore, the secondary anti-collision beam is integrally stamped, and its cross-section is U-shaped with its middle part protruding forward.

[0015] Based on the above-mentioned technical means, it is possible to reduce the number of connecting parts of the secondary anti-collision beam while ensuring the structural strength of the secondary anti-collision beam, thereby simplifying the molding process and reducing the weight of the secondary anti-collision beam.

[0016] Furthermore, the secondary anti-collision crossbeam has an elongated oval recess in the middle, and crossbeam process holes are provided on both sides of the elongated oval recess.

[0017] Based on the above technical means, the rigidity and strength of the secondary anti-collision beam can be enhanced, and the process holes of the beam can be used for positioning when welding the secondary anti-collision beam and the energy-absorbing box welding assembly, thereby effectively improving the welding accuracy of the assembly.

[0018] Furthermore, the energy-absorbing box mounting plate is formed into a square plate structure with rounded corners, and a through hole with an inwardly concave arc corner is opened in the middle of the energy-absorbing box mounting plate.

[0019] Based on the above technical means, the structural form of the energy-absorbing box mounting plate is defined. The through hole with a concave arc corner in the middle allows the energy-absorbing box mounting plate to be shallowly embedded in the square hole of the energy-absorbing box, thereby facilitating subsequent welding work.

[0020] Furthermore, the energy-absorbing box mounting plate has projection welded studs at the outer corner of the upper end and mounting holes at the two corners of the lower end.

[0021] Based on the above technical means, the installation position of the projection weld stud on the energy absorption box mounting plate is defined. The projection weld stud can form a pre-position during the assembly of the sub-collision beam assembly and the front subframe assembly, thereby improving the assembly accuracy. It also plays a pre-attachment role, assisting assembly workers and improving assembly efficiency.

[0022] Furthermore, a trapezoidal mounting plate is hinged to the outer edge of the energy-absorbing box mounting plate located on the right side, and the trapezoidal mounting plate is provided with an oblong mounting hole.

[0023] Based on the above-mentioned technical means, it is possible to integrate the wiring harness and water pipes during automobile assembly, thereby making the wiring harness of the front vehicle neat and aesthetically pleasing.

[0024] Another object of the present invention is to provide an automobile comprising the sub-collision beam assembly described in any of the above technical solutions.

[0025] The vehicle equipped with the aforementioned sub-collision beam assembly described in this invention can prevent pedestrians from being dragged under the vehicle during a collision, and can also improve the crumple zone energy absorption capacity of the entire vehicle's front collision beam assembly, thereby improving the overall vehicle safety.

[0026] Through the above technical solution, the present invention has the following beneficial effects:

[0027] (1) The present invention includes an energy-absorbing box, which includes an upper plate and a lower plate. The upper and lower plates are provided with corresponding concave and convex ribs. The upper and lower plates are positioned by the corresponding concave and convex ribs, which reduces the difficulty of the forming process of the energy-absorbing box. The opening ends of the upper and lower plates are designed as bevels, that is, the opening ends of the upper and lower plates are designed to be one end higher and the other end lower. The higher end of the upper plate and the lower end of the lower plate are connected by a number of corresponding concave and convex ribs. The weld formed along the edge of the opening end of the upper plate forms an angle with the central axis of the length direction of the energy-absorbing box, which can effectively disperse the force and guide the force in multiple directions, effectively enhancing the collapse energy absorption capacity of the energy-absorbing box. The connection structure with different heights of the energy-absorbing box can effectively disperse the force generated on the energy-absorbing box during the collision, thereby reducing the magnitude of the force transmitted to the longitudinal beam of the car.

[0028] (2) By setting projection weld studs on the outer side of the upper end of the energy-absorbing box mounting plate, the present invention can ensure that the sub-collision beam assembly and the front subframe assembly are pre-positioned during assembly, thereby improving the assembly accuracy. At the same time, it can also play a pre-hanging role, assisting assembly workers and improving assembly efficiency.

[0029] (3) The secondary anti-collision beam of the present invention is integrally stamped and formed into a U-shape. The middle area of ​​the secondary anti-collision beam protrudes forward in the length direction and has an elongated oval recess in the middle. The process holes of the beam are provided on both sides of the elongated oval recess. This design can simplify the forming process of the secondary anti-collision beam, reduce the production difficulty, enhance the structural strength of the secondary anti-collision beam, and effectively improve the welding accuracy of the secondary anti-collision beam and the energy absorption box welding assembly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the sub-collision beam assembly provided in an embodiment of the present invention;

[0031] Figure 2This is a schematic diagram of the welding assembly of the secondary anti-collision energy-absorbing box provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the cross-sectional position of the sub-collision beam assembly provided in an embodiment of the present invention;

[0033] Figure 4 This is a schematic cross-sectional view of the sub-collision beam assembly provided in an embodiment of the present invention;

[0034] Figure 5 This is an assembly diagram of the sub-collision beam assembly and the front subframe assembly provided in an embodiment of the present invention.

[0035] Among them: 1-Secondary anti-collision crossbeam; 2-Upper plate of energy-absorbing box; 3-Lower plate of energy-absorbing box; 4-Mounting plate of energy-absorbing box; 5-Concave and convex ribs; 6-Screw bracing; 7-Positioning hole; 8-Trapezoidal mounting plate; 9-Front subframe assembly mounting beam; 10-Assembly nut; 11-Assembly bolt Detailed Implementation

[0036] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In the description of this invention, some directional terms used to clearly illustrate the technical solutions of this invention, such as "up," "down," "left," and "right," are all analogous to the normal directions referred to during the use of a car. The directional term "front" refers to the rear of the car pointing towards the front of the car, and "rear" refers to the front of the car pointing towards the rear of the car. The directional terms are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0040] See Figure 1 This embodiment proposes a secondary anti-collision beam assembly, including a secondary anti-collision beam 1 and energy-absorbing boxes disposed in the grooves at both ends of the secondary anti-collision beam 1. Each energy-absorbing box includes an upper energy-absorbing box plate 2 and a lower energy-absorbing box plate 3. The cross-sections of the upper energy-absorbing box plate 2 and the lower energy-absorbing box plate 3 are both U-shaped. The upper energy-absorbing box plate 2 and the lower energy-absorbing box plate 3 are respectively provided with a plurality of concave and convex ribs 5. The height of one end of the upper energy-absorbing box plate 2 and the lower energy-absorbing box plate 3 is lower than the height of the other end. The higher end of the upper plate 2 of the energy-absorbing box is connected to the lower end of the lower plate 3 of the energy-absorbing box by a plurality of correspondingly provided concave and convex ribs 5, so as to form a square hollow tube with multiple surrounding concave and convex ribs 5. The end of the energy-absorbing box away from the sub-anti-collision beam 1 is connected to an energy-absorbing box mounting plate 4. The energy-absorbing box mounting plate 4 is provided with projection weld studs 6, so that the sub-anti-collision beam assembly and the front subframe assembly can be pre-positioned by the projection weld studs 6.

[0041] Specifically, in this embodiment of the invention, the energy-absorbing box is welded together from an upper plate 2 and a lower plate 3. Both the upper plate 2 and the lower plate 3 have U-shaped cross-sections, and the two flanges of the upper plate 2 are trapezoidal structures that are wider at the front and narrower at the back. Similarly, the two flanges of the lower plate 3 are trapezoidal structures that are narrower at the front and wider at the back. Both the upper plate 2 and the lower plate 3 are provided with multiple concave and convex ribs 5. The upper plate 2 and the lower plate 3 are positioned by these corresponding concave and convex ribs 5, eliminating the need for additional positioning structures or fixtures. This prevents displacement in the front-back and left-right directions after the initial connection of the upper plate 2 and the lower plate 3, ensuring the welding accuracy of the upper plate 2 and the lower plate 3. Furthermore, the upper plate 2 and the lower plate 3 of this structure are simple to form, not limited by existing forming processes, easy to manufacture, and cost-effective. The energy-absorbing box, which is formed by welding the upper plate 2 and the lower plate 3 of the energy-absorbing box, has multiple concave and convex ribs 5 forming a ring structure on its outer circumference. The concave and convex ribs 5 are set perpendicular to the direction of vehicle movement, which can greatly improve the energy absorption capacity of the energy-absorbing box. In addition, the energy-absorbing box is a structure formed by welding the upper plate 2 and the lower plate 3 of the energy-absorbing box with different front and rear heights. The weld between the upper plate 2 and the lower plate 3 of the energy-absorbing box has an angle with the central axis of the energy-absorbing box in the length direction. According to the principle of mechanics, it can effectively disperse the force acting on the energy-absorbing box when the vehicle collides in the direction of vehicle movement and reduce the force transmitted to the longitudinal beam of the vehicle.

[0042] Specifically, projection weld studs 6 are welded to the outer corner of the upper end of the energy-absorbing box mounting plate 4. The energy-absorbing box mounting plate 4 with the projection weld studs 6 is then welded to the energy-absorbing box to form an energy-absorbing box welding assembly. This assembly is then embedded and welded to the secondary anti-collision beam 1, ultimately forming the secondary anti-collision beam assembly. The end of the energy-absorbing box welded to the secondary anti-collision beam 1 is enclosed within the U-shaped section of the secondary anti-collision beam 1. This reduces the risk of weld detachment when the secondary anti-collision beam 1 is impacted, ensuring a smooth force transmission path and facilitating welding while maintaining an aesthetically pleasing appearance. The secondary anti-collision beam assembly is matched with the mounting holes on the front subframe assembly mounting beam 9 via the projection weld studs 6, and then pre-tightened with mounting nuts 10. This completes the positioning of the secondary anti-collision beam assembly and the front subframe assembly during assembly, improving assembly accuracy and serving as a pre-attachment mechanism. This assists assembly workers, increases assembly efficiency, and reduces labor intensity.

[0043] See Figure 2 In this embodiment, the outer peripheral surface of the energy-absorbing box is provided with concave ribs on the upper and lower surfaces near the energy-absorbing box mounting plate 4, and convex ribs are provided on both sides. The upper and lower surfaces near the secondary anti-collision beam 1 are provided with convex ribs, and concave ribs are provided on both sides. All of these have transition rounded corners.

[0044] Specifically, the concave and convex ribs 5 on the outer periphery of the energy-absorbing box are distributed near the sub-anti-collision crossbeam 1 and near the energy-absorbing box mounting plate 4, respectively. This design ensures that the energy-absorbing area of ​​the energy-absorbing box is evenly distributed, thereby guaranteeing that it can crumple and deform in the intended direction during a vehicle collision, effectively absorbing the energy generated by the collision on the vehicle's longitudinal beam. The energy-absorbing box has opposite concave and convex ribs 5 on its top and bottom surfaces and both sides. This allows the concave ribs to deform inwards and the convex ribs to deform outwards when the energy-absorbing box is subjected to the impact force, thus dispersing the impact force to the inside and outside of the energy-absorbing box respectively, thereby enhancing the crumple capacity of the energy-absorbing box. Furthermore, crumple holes can also be provided on the energy-absorbing box to further improve its crumple energy absorption effect.

[0045] In this embodiment, the top surface of the upper plate 2 of the energy-absorbing box is provided with a plurality of positioning holes 7, and the bottom surface of the lower plate 3 of the energy-absorbing box is provided with a plurality of positioning holes 7.

[0046] Specifically, in this embodiment of the invention, positioning holes 7 are provided in the middle of the upper plate 2 and the lower plate 3 of the energy-absorbing box and near the mounting plate 4 of the energy-absorbing box. The upper plate 2 and the lower plate 3 of the energy-absorbing box are connected to the energy-absorbing box welding device through the positioning holes 7, which can ensure the accuracy and stability of the welding, thereby making the welded energy-absorbing box firm and reliable.

[0047] In this embodiment, the upper plate 2 of the energy-absorbing box is wider than the lower plate of the energy-absorbing box, so that the upper plate 2 of the energy-absorbing box can be snapped onto both sides of the lower plate 3 of the energy-absorbing box in the width direction by the concave and convex ribs 5.

[0048] According to the above technical means, the upper plate 2 and the lower plate 3 of the energy-absorbing box can be pre-positioned by the concave and convex ribs 5, which restricts the front-back and left-right displacement of the upper plate 2 and the lower plate 3 of the energy-absorbing box, thereby facilitating subsequent welding work.

[0049] See Figure 3 and Figure 4 In this embodiment, the energy-absorbing box has a downward tilted structure. Specifically, the end of the energy-absorbing box away from the sub-anti-collision beam 1 gradually tilts downward. This structure can raise the position of the sub-anti-collision beam 1 in front of the car, thereby cooperating with the front anti-collision beam to improve the anti-collision performance of the front of the car. In addition, the downward tilted energy-absorbing box can decompose the force generated during the frontal impact, dispersing a small part of the force to the rear and the other part of the force to the tilted position of the energy-absorbing box, thereby reducing the transmission of force to the front subframe assembly mounting beam 9 and further protecting the internal structure of the vehicle body.

[0050] In this embodiment, the secondary anti-collision beam 1 is integrally stamped, and the cross-section of the secondary anti-collision beam 1 is U-shaped with its middle part protruding forward.

[0051] Specifically, the secondary anti-collision beam 1 has a U-shaped cross-section, which improves its structural strength. The middle part of the secondary anti-collision beam 1, located between the two energy-absorbing boxes, protrudes forward along the front of the vehicle body, forming an overall "U"-shaped structure with a narrower central section and wider sides. This structure enhances the structural strength of the secondary anti-collision beam 1 and helps transfer the force generated by a collision to the energy-absorbing boxes on both sides, thereby improving its impact resistance. The secondary anti-collision beam 1 is simple to form, as it can be integrally stamped, simplifying the forming process and reducing production costs. Furthermore, the secondary anti-collision beam 1 has elongated oval through holes on both sides, especially on the outer side where the energy-absorbing boxes are installed. These through holes can be used by a trailer or other device to support the secondary anti-collision beam 1 for assembly.

[0052] In this embodiment, the secondary anti-collision crossbeam 1 has an elongated oval recess in the middle, and crossbeam process holes are provided on both sides of the elongated oval recess.

[0053] Specifically, in this embodiment of the invention, the secondary anti-collision beam 1 has an elongated oval recess in its middle. This oval recess protrudes forward from the secondary anti-collision beam 1, serving as a central reinforcing rib and effectively improving its structural strength. The process holes on both sides of the oval recess can be used for welding positioning of the secondary anti-collision beam 1 and the energy-absorbing box welding assembly, thereby effectively improving welding accuracy.

[0054] In this embodiment, the energy-absorbing box mounting plate 4 is formed as a square plate structure with rounded corners, and a through hole with an inwardly concave arc corner is opened in the middle of the energy-absorbing box mounting plate 4.

[0055] Specifically, in this embodiment of the invention, the middle part of the energy-absorbing box mounting plate 4 is a through hole with an inwardly concave arc corner, which allows the energy-absorbing box mounting plate 4 to be shallowly embedded at one end of the energy-absorbing box, thereby limiting the displacement of the energy-absorbing box mounting plate 4 in all directions except the axial direction of the energy-absorbing box, and improving the accuracy and reliability of welding the energy-absorbing box mounting plate 4 to the energy-absorbing box.

[0056] In this embodiment, the energy-absorbing box mounting plate 4 is provided with a projection weld stud 6 at the outer corner of the upper end, and mounting holes are provided at the two corners of the lower end.

[0057] Specifically, in this embodiment, the projection weld stud 6 is welded to the outer corner of the upper end of the energy-absorbing box mounting plate 4, and is adapted to correspond one-to-one with the assembly holes on the front subframe assembly mounting beam 9. The projection weld stud 6 enables pre-positioning of the sub-bumper beam assembly and the front subframe assembly during assembly, thereby improving assembly efficiency and accuracy. The mounting holes on the energy-absorbing box mounting plate 4 also correspond one-to-one with the assembly holes on the front subframe assembly mounting beam 9, so that the assembly of the sub-bumper beam assembly and the front subframe assembly is achieved by the assembly bolts 11 and the assembly nuts 10.

[0058] In this embodiment, a trapezoidal mounting plate 8 is hinged to the outer edge of the energy-absorbing box mounting plate 4 located on the right side, and the trapezoidal mounting plate 8 is provided with an oblong mounting hole.

[0059] Based on the above-mentioned technical means, it is possible to integrate the wiring harness and water pipes during automobile assembly, thereby making the wiring harness of the front vehicle neat and aesthetically pleasing.

[0060] See Figure 5 This is a schematic diagram of the assembly of the sub-collision beam assembly and the front subframe assembly in this embodiment. The sub-collision beam assembly is positioned by the projection weld stud 6 and the mounting hole of the front subframe assembly mounting beam 9. It is then pre-tightened by the mounting nut 10. The mounting bolt 11 is then passed through the mounting hole of the energy absorption box mounting plate 4 and the mounting hole of the front subframe assembly mounting beam 9 in sequence and tightened by the mounting nut 10. The pre-tightened projection weld stud 6 and the mounting nut 10 are then tightened, and the assembly of the sub-collision beam assembly and the front subframe assembly is completed. Based on this, the assembled sub-collision beam assembly, the front collision beam body, the engine compartment longitudinal beam and the side beam form a force transmission path, which improves the safety of the vehicle collision.

[0061] This embodiment also relates to a vehicle equipped with the sub-collision beam assembly described in the above embodiment.

[0062] Specifically, by incorporating the sub-collision beam assembly described in the above embodiment, the automobile in this embodiment can prevent pedestrians from being dragged under the vehicle during a collision, and can also improve the crumple zone energy absorption capacity of the entire vehicle's front collision beam assembly, thereby enhancing the overall vehicle collision safety.

[0063] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

[0064] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A sub-impact beam assembly, characterized by, The application relates to a sub-anti-collision beam assembly, which comprises a sub-anti-collision beam (1) and energy-absorbing boxes arranged in the groove faces of the two ends of the sub-anti-collision beam (1), wherein each energy-absorbing box comprises an upper energy-absorbing box plate (2) and a lower energy-absorbing box plate (3), the cross sections of the upper energy-absorbing box plate (2) and the lower energy-absorbing box plate (3) are U-shaped, the two side flanges of the upper energy-absorbing box plate (2) are trapezoidal structures with the front being wide and the rear being narrow, the two side flanges of the lower energy-absorbing box plate (3) are trapezoidal structures with the front being narrow and the rear being wide, the welding seam between the upper energy-absorbing box plate (2) and the lower energy-absorbing box plate (3) has an included angle with the central axis of the energy-absorbing box in the length direction, a plurality of concave-convex ribs (5) are arranged on the upper energy-absorbing box plate (2) and the lower energy-absorbing box plate (3), the upper and lower faces of the outer circumferential surface of the energy-absorbing box and close to the energy-absorbing box mounting plate (4) are provided with concave ribs, the two side faces are provided with convex ribs, the upper and lower faces close to the sub-anti-collision beam (1) are provided with convex ribs, the two side faces are provided with concave ribs, and transition round corners are formed at the edges and corners, the height of one end of the upper energy-absorbing box plate (2) and the lower energy-absorbing box plate (3) is lower than that of the other end, the higher end of the upper energy-absorbing box plate (2) is connected with the lower end of the lower energy-absorbing box plate (3) through the corresponding plurality of concave-convex ribs (5) to form a square hollow tube with a plurality of surrounding structures, one end of the energy-absorbing box away from the sub-anti-collision beam (1) is connected with the energy-absorbing box mounting plate (4), the energy-absorbing box mounting plate (4) is provided with a projection welding stud (6), so that the sub-anti-collision beam assembly and the front sub-frame assembly can be positioned when assembled through the projection welding stud (6).

2. The counter impact beam assembly of claim 1, wherein, A plurality of positioning holes (7) are arranged on the top surface of the upper energy-absorbing box plate (2), and a plurality of positioning holes (7) are arranged on the bottom surface of the lower energy-absorbing box plate (3).

3. The counter impact beam assembly of claim 2, wherein, The width of the upper energy-absorbing box plate (2) is wider than that of the lower energy-absorbing box plate (3), so that the upper energy-absorbing box plate (2) can be clamped on the two sides of the width direction of the lower energy-absorbing box plate (3) through the concave-convex ribs (5).

4. The counter impact beam assembly of claim 1, wherein, The sub-anti-collision beam (1) is integrally formed through stamping, the cross section of the sub-anti-collision beam (1) is formed in a U shape, and the middle part of the sub-anti-collision beam (1) protrudes forward.

5. The counter impact beam assembly of claim 4, wherein, The middle part of the sub-anti-collision beam (1) is provided with a long circular recess, and the two sides of the long circular recess are provided with beam process holes.

6. The counter impact beam assembly of claim 1, wherein, The energy-absorbing box mounting plate (4) is formed in a square plate structure with round corners, and a through hole with an inner concave circular arc corner is arranged in the middle part of the energy-absorbing box mounting plate.

7. The counter impact beam assembly of claim 6, wherein, The projection welding stud (6) is arranged at the edge corner of the outer side of the upper end of the energy-absorbing box mounting plate (4), and mounting holes are arranged at the two corners of the lower end.

8. The counter impact beam assembly of claim 7, wherein, The outer side of the energy-absorbing box mounting plate (4) on the right side is hingedly connected with a trapezoidal mounting plate (8), and a long circular mounting hole is arranged on the trapezoidal mounting plate (8).

9. An automobile characterized by comprising: The application further relates to a vehicle front sub-frame assembly comprising the sub-anti-collision beam assembly.

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