Energy absorption box structure, front anti-collision beam assembly and vehicle

Abstract

The utility model discloses an energy absorption box structure, front anti -collision beam assembly and vehicle relates to vehicle manufacturing technical field, and energy absorption box structure includes: energy absorption box main part, forms energy absorption cavity in energy absorption box main part, support plate, support plate is located in energy absorption cavity, support plate is connected and supports between the inner top wall and the inner bottom wall of energy absorption cavity, and will energy absorption cavity divide into the inner energy absorption cavity and the outer energy absorption cavity along the inside and outside direction distribution. According to the energy absorption box structure of the utility model, is stable, satisfies the bias collision working condition demand, can effectively promote energy absorption effect and load efficiency, reduce the deformation of passenger cabin, improve the protection effect to passenger cabin.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to an energy-absorbing box structure, a front bumper beam assembly having the energy-absorbing box structure, and a vehicle having the front bumper beam assembly or the energy-absorbing box structure. Background Technology

[0002] In the existing technology, the energy absorption effect is improved by setting up dual energy absorption boxes. However, the dual energy absorption box structure requires higher precision installation, which is difficult to manufacture. In addition, the use of collapse rib design results in low energy absorption effect and load efficiency, and there is a problem of insufficient energy absorption. Furthermore, it does not take into account the requirements of offset collision conditions and cannot effectively cope with offset collision conditions. There is still room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an energy-absorbing box structure. The energy-absorbing box structure is stable, meets the requirements of offset collision conditions, can effectively improve energy absorption and load efficiency, reduce the deformation of the passenger compartment, and improve the protection effect of the passenger compartment.

[0004] The energy-absorbing box structure according to an embodiment of the present utility model includes: an energy-absorbing box body, wherein an energy-absorbing cavity is formed inside the energy-absorbing box body; and a support plate, wherein the support plate is located inside the energy-absorbing cavity, the support plate is connected and supported between the inner top wall and the inner bottom wall of the energy-absorbing cavity, and divides the energy-absorbing cavity into an inner energy-absorbing cavity and an outer energy-absorbing cavity distributed in the inward and outward directions.

[0005] According to the energy-absorbing box structure of this utility model embodiment, by setting a support plate, the support plate is connected and supported between the inner top wall and the inner bottom wall of the energy-absorbing cavity, and divides the energy-absorbing cavity into an inner energy-absorbing cavity and an outer energy-absorbing cavity distributed in the inner and outer directions, which improves the lateral stability of the energy-absorbing box structure, reduces the instability of the energy-absorbing box structure during the crushing process, thereby improving the stability and energy absorption effect of the energy-absorbing box structure during the collision deformation process, and the energy-absorbing box structure can disperse the collision energy to the two energy-absorbing cavities, avoid local stress concentration, improve the energy absorption effect and load efficiency. Thus, this energy-absorbing box structure meets the requirements of offset collision conditions, can reduce the deformation of the occupant compartment, and improve the protection effect of the occupant compartment.

[0006] According to some embodiments of the present invention, the energy-absorbing box structure includes a front section and a rear section of the energy-absorbing box connected longitudinally; wherein, the front end of the front section of the energy-absorbing box has a beveled structure, and the beveled structure is connected to the anti-collision beam; and / or, the front section of the energy-absorbing box is provided with at least one first crumple zone; and / or, the rear section of the energy-absorbing box is provided with at least one second crumple zone.

[0007] According to some embodiments of the present invention, the energy-absorbing box structure includes an overlapping extension plate, at least a portion of which overlaps the surface of the anti-collision beam; and / or, the first crumple zone is constructed as a crumple rib; and / or, the second crumple zone is constructed as a crumple crease.

[0008] According to some embodiments of the present invention, the energy-absorbing box structure includes an inner shell and an outer shell. The inner shell and the outer shell are connected laterally and together define the energy-absorbing cavity. The support plate is connected to the connection between the inner shell and the outer shell.

[0009] According to some embodiments of the energy-absorbing box structure of this utility model, the inner shell includes an inner top plate, an inner side plate, and an inner bottom plate. The inner top plate and the inner bottom plate are spaced apart and opposite to each other. The inner side plate is connected between the inner top plate and the inner bottom plate. The outer shell includes an outer top plate, an outer side plate, and an outer bottom plate. The outer top plate and the outer bottom plate are spaced apart and opposite to each other. The outer side plate is connected between the outer top plate and the outer bottom plate. The inner side plate and the outer side plate are opposite to each other. The inner top plate and the outer top plate overlap and are connected together. The inner bottom plate and the outer bottom plate overlap and are connected together.

[0010] According to some embodiments of the present invention, the energy-absorbing box structure further includes a connecting end plate, which is connected to the rear end of the energy-absorbing box body and is used to be detachably connected to the front end of the longitudinal beam; and / or, the energy-absorbing box body has at least two mounting and fixing surfaces, which are used to be connected to the front end module of the vehicle respectively.

[0011] This utility model also proposes a front anti-collision beam assembly.

[0012] The front bumper beam assembly according to an embodiment of the present invention includes a longitudinal beam, a bumper beam, and an energy-absorbing box structure as described in any of the above embodiments, wherein the energy-absorbing box structure is connected between the bumper beam and the longitudinal beam.

[0013] According to some embodiments of the present invention, in the front anti-collision beam assembly, the lateral width of the energy-absorbing box body is greater than the lateral width of the longitudinal beam; and / or, the longitudinal beam includes an outer longitudinal beam plate and an inner longitudinal beam plate, the outer longitudinal beam plate and the inner longitudinal beam plate are connected laterally, and the support plate extends longitudinally and is disposed directly opposite to the outer longitudinal beam plate in the longitudinal direction.

[0014] This utility model also proposes a vehicle.

[0015] The vehicle according to the embodiments of the present invention includes the energy-absorbing box structure or the front anti-collision beam assembly described in any of the above embodiments.

[0016] The advantages of the aforementioned front bumper beam assembly, the vehicle, and the energy-absorbing box structure compared to the prior art are the same and will not be repeated here.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of the front anti-collision beam assembly according to an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the front bumper beam assembly according to an embodiment of the present utility model; Figure 3 This is a structural schematic diagram of the energy-absorbing box structure according to an embodiment of the present utility model; Figure 4 This is a structural schematic diagram of the front section and the rear section of the energy-absorbing box according to an embodiment of the present utility model; Figure 5 This is a structural schematic diagram of the front-end module, energy-absorbing box structure, and anti-collision beam according to an embodiment of the present utility model.

[0019] Figure label: Front bumper beam assembly 1000, Energy-absorbing box structure 100, Energy-absorbing box body 1, front section 11 of energy-absorbing box, oblique cut structure 111, overlapping extension plate 1111, rear section 12 of energy-absorbing box, energy-absorbing cavity 13, inner energy-absorbing cavity 131, outer energy-absorbing cavity 132, inner shell 14, inner top plate 141, inner side plate 142, inner bottom plate 143, outer shell 15, outer top plate 151, outer side plate 152, outer bottom plate 153, mounting and fixing surface 16, mounting hole 161, boss 162, support plate 2, connector 9, first collapsible part 31, second collapsible part 32, connecting end plate 4. Longitudinal beam 200, longitudinal beam outer plate 201, longitudinal beam inner plate 202, longitudinal beam connecting plate 203. Anti-collision beam 300, front-end module 400, overlapping structure 500. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is for reference. Figures 1-5 The energy-absorbing box structure 100 according to an embodiment of the present utility model is described. The energy-absorbing box structure 100 is stable and meets the requirements of offset collision conditions. It can effectively improve the energy absorption effect and load efficiency, reduce the deformation of the passenger compartment, and improve the protection effect of the passenger compartment.

[0023] like Figures 1-5 As shown, an energy-absorbing box structure 100 according to an embodiment of the present invention includes: an energy-absorbing box body 1 and a support plate 2.

[0024] The energy-absorbing box structure 100 of this utility model can be applied between the front anti-collision beam 300 and the longitudinal beam 200, or between other structures. The energy-absorbing box structure 100 is mainly used to absorb collision energy, transmit force, and protect the passenger compartment. When applied between the front anti-collision beam 300 and the longitudinal beam 200, the energy-absorbing box structure 100 has a special role in a 25% offset collision. In a 25% offset collision, the main energy-absorbing structure may be completely avoided, and the impact force is directly applied to the tires, the upper longitudinal beam, and the A-pillar area, resulting in severe deformation of the passenger compartment. In 100% or 40% offset collisions, the longitudinal beam 200 and the subframe can absorb energy through bending deformation. However, with a 25% overlap, the longitudinal beam 200 only participates in energy absorption to a small extent, and the anti-collision beam 300 may fail due to insufficient length. The tires and the upper longitudinal beam become the main stress points, which can easily lead to intrusion into the passenger compartment. The energy-absorbing box structure 100 can serve as the first energy-absorbing barrier. In a 25% offset collision, it can serve as the first line of defense for energy absorption, absorbing impact energy. This allows the energy-absorbing box structure 100 to participate in crumple deformation in advance to guide the dispersion of impact force and reduce injury to occupants. After the energy-absorbing box structure 100 and the anti-collision beam 300 absorb the initial collision energy, the remaining energy can be dispersed through the longitudinal beam 200, the subframe, and the body structure.

[0025] The main body 1 of the energy-absorbing box is the main structure of the energy-absorbing box structure 100. An energy-absorbing cavity 13 is formed inside the main body 1 of the energy-absorbing box. That is, the inside of the main body 1 of the energy-absorbing box is a cavity to form an energy-absorbing cavity 13. When a collision occurs, the energy-absorbing cavity 13 can undergo plastic deformation to absorb the collision energy.

[0026] Furthermore, the support plate 2 is located inside the energy absorption cavity 13. The support plate 2 is connected and supported between the inner top wall and the inner bottom wall of the energy absorption cavity 13, and divides the energy absorption cavity 13 into an inner energy absorption cavity 131 and an outer energy absorption cavity 132 distributed in the inward and outward directions.

[0027] Specifically, the support plate 2 serves as a support and reinforcement structure for the energy-absorbing box structure 100, as shown in the attached diagram. Figure 3 As shown, the support plate 2 is connected and supported between the inner top wall and the inner bottom wall of the energy absorption cavity 13. That is, one end of the support plate 2 can be connected to the inner top wall of the energy absorption cavity 13, and the other end of the support plate 2 can be connected to the inner bottom wall of the energy absorption cavity 13, so as to effectively support the energy absorption cavity 13 in the vertical and / or horizontal directions, improve the lateral stability of the energy absorption box body 1, reduce the instability of the energy absorption box structure 100 during the crushing process, and thus improve the stability and energy absorption effect of the energy absorption box structure 100 during the collision deformation process.

[0028] The support plate 2 divides the energy-absorbing cavity 13 into an inner energy-absorbing cavity 131 and an outer energy-absorbing cavity 132 distributed in the inward and outward directions. That is, the support plate 2 can be extended longitudinally and supported vertically to divide the energy-absorbing cavity 13 into an inner energy-absorbing cavity 131 and an outer energy-absorbing cavity 132 distributed in the inward and outward directions of the vehicle. The inner energy-absorbing cavity 131 is located on the inner side of the support plate 2, and the outer energy-absorbing cavity 132 is located on the outer side of the support plate 2. Both the inner energy-absorbing cavity 131 and the outer energy-absorbing cavity 132 can absorb collision energy. When the vehicle collides, both the inner energy-absorbing cavity 131 and the outer energy-absorbing cavity 132 can undergo plastic deformation to absorb collision energy, thereby dispersing the collision energy to the two energy-absorbing cavities 13, avoiding local stress concentration, improving the energy absorption effect and load efficiency, thereby reducing the deformation of the passenger compartment and improving the protection effect of the passenger compartment.

[0029] In practice, when a vehicle is involved in a frontal collision, offset collision, or side collision, the inner energy-absorbing cavity 131 and the outer energy-absorbing cavity 132 can undergo plastic deformation in sequence to absorb collision energy in an orderly manner, thereby achieving the absorption of collision energy and improving the energy absorption rate.

[0030] According to the embodiment of the present invention, the energy-absorbing box structure 100, by setting a support plate 2, which is connected and supported between the inner top wall and the inner bottom wall of the energy-absorbing cavity 13, and dividing the energy-absorbing cavity 13 into an inner energy-absorbing cavity 131 and an outer energy-absorbing cavity 132 distributed in the inner and outer directions, improves the lateral stability of the energy-absorbing box structure 100, reduces the instability of the energy-absorbing box structure 100 during the crushing process, thereby improving the stability and energy absorption effect of the energy-absorbing box structure 100 during the collision deformation process, and the energy-absorbing box structure 100 can disperse the collision energy to the two energy-absorbing cavities 13, avoid local stress concentration, improve the energy absorption effect and load efficiency, so the energy-absorbing box structure 100 meets the requirements of offset collision conditions, can reduce the deformation of the occupant compartment, and improve the protection effect of the occupant compartment.

[0031] In some embodiments, the energy-absorbing box body 1 includes a front section 11 and a rear section 12 of the energy-absorbing box connected longitudinally.

[0032] In other words, the energy-absorbing box body 1 includes a front section 11 and a rear section 12. The front section 11 and the rear section 12 are connected longitudinally, i.e., in the longitudinal direction of the vehicle. That is, the front section 11 is located at the front of the energy-absorbing box body 1, and the rear section 12 is located at the rear of the energy-absorbing box body 1. When the vehicle is involved in a frontal collision or an offset collision, the front section 11 can deform to absorb the collision energy, and the rear section 12 can deform to further absorb the collision energy.

[0033] Furthermore, such as Figure 4 As shown, the front end of the energy-absorbing box 11 has a beveled structure 111, which is connected to the anti-collision beam 300.

[0034] In other words, the front end of the energy-absorbing box 11 has a bevel or bevel. Since the anti-collision beam 300 is a curved shape that bends backward, the beveled structure 111 matches the shape of the anti-collision beam 300 and is connected to the anti-collision beam 300, thus realizing the connection between the energy-absorbing box body 1 and the anti-collision beam 300. This ensures that the effective energy-absorbing space within the vehicle's shape boundary is fully utilized, thereby improving the vehicle's collision safety.

[0035] The oblique cut structure 111 at the front end of the energy-absorbing box 11, as a pre-designed geometric defect, can effectively reduce the peak force required for the crushing deformation of the front end of the energy-absorbing box structure 100, improve the crushing effect of the energy-absorbing box structure 100, and reduce the risk of damage to the longitudinal beam 200.

[0036] In actual design, the oblique cut structure 111 can be lapped or welded to the anti-collision beam 300, etc., which can be flexibly selected.

[0037] In other embodiments, the front section 11 of the energy-absorbing box is provided with at least one first collapse portion 31.

[0038] Specifically, the front section 11 of the energy-absorbing box can be provided with one, two, three or more first crumple zones 31. When the vehicle is involved in a frontal or offset collision, the first crumple zone 31 will crumple first to undergo plastic deformation, converting the impact force into deformation energy and absorbing the collision energy. The remaining impact force can then be transferred to the rear section 12 of the energy-absorbing box and other structures such as the longitudinal beam 200. Furthermore, the crumple deformation of the first crumple zone 31 can effectively reduce the peak force required for the front section 11 of the energy-absorbing box to crush and deform, thereby improving the crushing effect of the energy-absorbing box structure 100.

[0039] In other embodiments, the rear section 12 of the energy-absorbing box is provided with at least one second collapse portion 32.

[0040] Specifically, the rear section 12 of the energy-absorbing box can be equipped with one, two, three, or more second crumple zones 32. During a frontal or offset collision, the remaining impact energy absorbed by the front section 11 of the energy-absorbing box is transferred rearward to the rear section 12. The second crumple zones 32 then crumple to undergo plastic deformation, converting the impact force into deformation energy, further absorbing the impact energy. The remaining impact force after being absorbed by the second crumple zones 32 can then be transferred to other structures such as the longitudinal beam 200, further effectively dispersing the impact force. Furthermore, the crumple deformation of the second crumple zones 32 can effectively reduce the peak force required for the crushing deformation of the rear section 12 of the energy-absorbing box, further improving the crushing effect of the energy-absorbing box structure 100.

[0041] Therefore, by achieving secondary collapse through the first collapse portion 31 and the second collapse portion 32, the peak force value during the collision can be effectively reduced, the overall crushing effect of the energy-absorbing box structure 100 can be improved, the peak load required for the crushing of the energy-absorbing box structure 100 can be reduced, the average load during the deformation process can be increased, and the load efficiency and energy absorption ratio of the energy-absorbing box structure 100 during the collision process can be improved, thus improving the energy absorption effect and reducing the risk of damage to the rear structure of the energy-absorbing box structure 100.

[0042] In some embodiments, there are multiple first collapse portions 31, and the multiple first collapse portions 31 are distributed at intervals along the lateral and / or longitudinal directions in the front section 11 of the energy absorption box.

[0043] In other words, the first collapse portion 31 can be set to two, three, four or even more. Multiple first collapse portions 31 can be distributed in the front section 11 of the energy absorption box in the horizontal direction, i.e., left and right direction, or multiple first collapse portions 31 can be distributed in the front section 11 of the energy absorption box in the longitudinal direction, i.e. front and back direction.

[0044] By setting multiple first collapse portions 31 in the front section 11 of the energy-absorbing box, the collision energy can be absorbed by the deformation of the multiple first collapse portions 31, thereby effectively improving the energy absorption effect of the front section 11 of the energy-absorbing box, effectively improving the crushing effect of the energy-absorbing box structure 100, and reducing the collision energy transmitted backward.

[0045] In other embodiments, there are multiple second collapse portions 32, and the multiple second collapse portions 32 are distributed longitudinally at intervals in the rear section 12 of the energy absorption box.

[0046] In other words, the second collapse section 32 can be set to two, three, four or even more, and multiple second collapse sections 32 can be distributed in the rear section 12 of the energy absorption box at intervals along the longitudinal direction, i.e., the front-to-back direction.

[0047] By providing multiple second collapse sections 32 in the rear section 12 of the energy-absorbing box, the collision energy can be absorbed through the deformation of the multiple second collapse sections 32, thereby effectively improving the energy absorption effect of the rear section 12 of the energy-absorbing box, effectively improving the crushing effect of the energy-absorbing box structure 100, and reducing the collision energy transmitted backward.

[0048] In some embodiments, the beveled structure 111 includes an overlapping extension plate 1111, at least a portion of which overlaps the surface of the crash beam 300.

[0049] Specifically, part or all of the overlapping extension plate 1111 can overlap the surface of the anti-collision beam 300, that is, the overlapping extension plate 1111 can press against and adhere to the surface of the anti-collision beam 300 to increase the connection area between the front end of the energy-absorbing box 11 and the anti-collision beam 300, making the connection between the energy-absorbing box 11 and the anti-collision beam 300 more stable and reliable, and then welding can be performed to further improve the connection stability and reliability between the energy-absorbing box 11 and the anti-collision beam 300, and prevent the connection between the energy-absorbing box 11 and the anti-collision beam 300 from breaking and separating.

[0050] like Figure 3 and Figure 4 As shown, the oblique cut structure 111 includes an overlapping extension plate 1111. The overlapping extension plate 1111 is configured to extend forward relative to the front end of the energy-absorbing box front section 11, so that at least a portion of the overlapping extension plate 1111 can overlap the surface of the anti-collision beam 300, thereby achieving an overlapping connection between the energy-absorbing box front section 11 and the anti-collision beam 300. The overlapping extension plate 1111 includes an upper overlapping extension plate and a lower overlapping extension plate. The upper overlapping extension plate is located on the upper side of the energy-absorbing box structure 100, and the lower overlapping extension plate is located on the lower side of the energy-absorbing box structure 100. Thus, the upper overlapping extension plate can overlap the upper surface of the anti-collision beam 300, and the lower overlapping extension plate can overlap the lower surface of the anti-collision beam 300, thereby achieving an overlapping connection with the anti-collision beam 300 in the vertical direction, improving the connection stability and reliability between the energy-absorbing box structure 100 and the anti-collision beam 300. Of course, the overlapping extension plate 1111 may also include an inner overlapping extension plate and an outer overlapping extension plate. The inner overlapping extension plate may overlap the inner side of the rear surface of the anti-collision beam 300, and the outer overlapping extension plate may overlap the outer side of the rear surface of the anti-collision beam 300. The inner overlapping extension plate and the outer overlapping extension plate may be constructed as overlapping flanges so that the inner overlapping extension plate and the outer overlapping extension plate can overlap and connect with the anti-collision beam 300 in the front-back direction, thereby further improving the connection stability and reliability of the energy-absorbing box structure 100 and the anti-collision beam 300.

[0051] In other embodiments, the first contraction portion 31 is configured as a contraction rib.

[0052] Specifically, the collapse ribs can be constructed as grooves of a certain size and shape to guide the material to fold and deform in a specific direction, thereby achieving energy absorption and dispersing the peak impact force, thus preventing the front section 11 of the energy absorption box from breaking, reducing the peak force required for the front end of the energy absorption box structure 100 to crush and deform, improving the crushing effect of the energy absorption box structure 100, and reducing the risk of damage to the longitudinal beam 200.

[0053] Among them, the shrinkage ribs can be constructed as V-shaped grooves, U-shaped grooves, wavy grooves or other regular or irregular shapes of grooves to achieve controllable deformation of the energy absorption box structure 100, absorb collision energy, and reduce the peak impact force.

[0054] For example, such as Figure 3 and Figure 4 As shown, the first crumple section 31 is constructed as a crumple rib extending vertically, and the crumple rib is constructed as a U-shaped groove protruding towards the energy absorption cavity 13, so as to reduce the peak value of the impact force through the deformation of the U-shaped groove.

[0055] In other embodiments, the second crumple portion 32 is configured as a crumple crease.

[0056] Specifically, the crumple crease can be considered as a pre-set, continuous, and periodic crumple rib. The crumple crease has a high and low undulation effect, which can effectively guide the rear end of the energy-absorbing box structure 100 to crumple and deform in a certain direction. That is, when a vehicle collision occurs, firstly, the crumple crease can ensure that the rear section 12 of the energy-absorbing box is guided along the crease direction to produce equidistant or unequal interval deformation, thereby effectively increasing the area of ​​plastic deformation of the energy-absorbing box structure 100 during the collision, and thus increasing the final energy absorption of the energy-absorbing box structure 100 and improving the energy absorption effect. Secondly, the crumple crease can be regarded as a geometric defect of the energy-absorbing box structure 100, which can reduce the peak force value during the collision.

[0057] Therefore, by setting crumple creases, the energy absorption effect of the energy absorption box structure 100 can be improved, and the peak force value during collision can also be reduced.

[0058] It should be noted that the combination of the crumple ribs, crumple creases, and oblique cut structure 111 can significantly reduce the peak load required for the energy-absorbing box structure 100 to crush, increase the average load during the deformation process, and thus improve the load efficiency and energy absorption ratio of the energy-absorbing box structure 100 during the collision process, resulting in better energy absorption and crushing effects.

[0059] In some embodiments, the energy-absorbing box body 1 includes an inner shell 14 and an outer shell 15, which are connected laterally and together define an energy-absorbing cavity 13. A support plate 2 is connected to the connection between the inner shell 14 and the outer shell 15.

[0060] Specifically, such as Figure 2 As shown, the energy-absorbing box body 1 includes an inner shell 14 and an outer shell 15, that is, the energy-absorbing box body 1 is constructed as a split structure, which can improve the crushing effect of the energy-absorbing box structure 100. The inner shell 14 is located on the inner side, and the outer shell 15 is located on the outer side. The inner shell 14 and the outer shell 15 are connected in the transverse direction, that is, in the left-right direction of the vehicle, that is, in the inward and outward direction, to jointly form an energy-absorbing cavity 13. In other words, the inner shell 14 is open to the outside of the vehicle, and the outer shell 15 is open to the inside of the vehicle. The ends of the inner shell 14 and the outer shell 15 are connected to form an energy-absorbing cavity 13 that is open to the front and rear, which is conducive to the effective energy absorption of the energy-absorbing cavity 13.

[0061] The support plate 2 is connected to the connection between the inner shell 14 and the outer shell 15 to support and strengthen the connection between the inner shell 14 and the outer shell 15, ensuring the stability of the energy-absorbing box structure 100 and the energy-absorbing cavity 13. This avoids lateral instability of the energy-absorbing box structure 100 during the collision, thereby reducing the risk of instability due to deformation of the energy-absorbing box structure 100 during the crushing process. It also facilitates the energy-absorbing box structure 100 to collapse and deform along the preset deformation direction, ensuring the energy absorption effect.

[0062] like Figure 2 and Figure 3 As shown, the support plate 2 can be placed vertically and extended longitudinally. The upper end of the support plate 2 can be provided with a connecting flange to connect the upper side of the inner shell 14 and the outer shell 15. The lower end of the support plate 2 can be provided with a connecting flange to connect the lower side of the inner shell 14 and the outer shell 15, thereby realizing the connection of the support plate 2 to the connection of the inner shell 14 and the outer shell 15.

[0063] In some embodiments, the inner shell 14 includes an inner top plate 141, an inner side plate 142, and an inner bottom plate 143, with the inner top plate 141 and the inner bottom plate 143 spaced apart and opposite to each other, and the inner side plate 142 connected between the inner top plate 141 and the inner bottom plate 143. The outer shell 15 includes an outer top plate 151, an outer side plate 152, and an outer bottom plate 153, with the outer top plate 151 and the outer bottom plate 153 spaced apart and opposite to each other, and the outer side plate 152 connected between the outer top plate 151 and the outer bottom plate 153.

[0064] Specifically, such as Figure 3 As shown, the inner shell 14 includes an inner top plate 141, an inner side plate 142, and an inner bottom plate 143. One end of the inner side plate 142 is connected to the inner top plate 141, and the other end of the inner side plate 142 is connected to the inner bottom plate 143. Thus, the inner side plate 142 is connected between the inner top plate 141 and the inner bottom plate 143. The inner top plate 141 and the inner bottom plate 143 are spaced apart and distributed opposite each other. They can be spaced apart and distributed opposite each other in the vertical direction to facilitate the connection between the energy-absorbing box structure 100 and other structures, and to ensure structural stability. The outer shell 15 includes an outer top plate 151, an outer side plate 152, and an outer bottom plate 153. One end of the outer side plate 152 is connected to the outer top plate 151, and the other end of the outer side plate 152 is connected to the outer bottom plate 153. Thus, the outer side plate 152 is connected between the outer top plate 151 and the outer bottom plate 153. The outer top plate 151 and the outer bottom plate 153 are spaced apart and distributed opposite each other. They can be spaced apart and distributed opposite each other in the vertical direction to facilitate the connection between the energy-absorbing box structure 100 and other structures, and to ensure structural stability.

[0065] In actual design, the inner top plate 141, inner side plate 142 and inner bottom plate 143 can be integrally formed, and the outer top plate 151, outer side plate 152 and outer bottom plate 153 can be integrally formed to form the inner shell 14 and the outer shell 15, which is convenient to manufacture.

[0066] Furthermore, the inner side plate 142 and the outer side plate 152 are distributed opposite to each other, the inner top plate 141 and the outer top plate 151 are connected by overlapping, and the inner bottom plate 143 and the outer bottom plate 153 are connected by overlapping.

[0067] Specifically, such as Figure 3 As shown, the inner side plate 142 and the outer side plate 152 can be distributed relative to each other along the inward and outward directions of the vehicle to ensure the overall stability of the energy-absorbing box structure 100. The inner top plate 141 and the outer top plate 151 can be connected by overlapping in the vertical or inward and outward directions, and the inner bottom plate 143 and the outer bottom plate 153 can be connected by overlapping in the vertical or inward and outward directions, thereby forming an integral energy-absorbing box body 1 structure.

[0068] In some embodiments, the energy-absorbing box structure 100 further includes a connecting end plate 4, which is connected to the rear end of the energy-absorbing box body 1 and is used to be detachably connected to the front end of the longitudinal beam 200.

[0069] In other words, the connecting end plate 4 can be set to extend laterally along the vehicle. One side surface of the connecting end plate 4 can be connected to the rear end of the energy-absorbing box body 1, and the other side surface of the connecting end plate 4 can be connected to the front end of the longitudinal beam 200. Thus, the connection between the energy-absorbing box body 1 and the longitudinal beam 200 is realized through the connecting end plate 4. So, when the vehicle collides, the remaining energy after the energy-absorbing box structure 100 absorbs energy can continue to be transmitted to the longitudinal beam 200, forming a force transmission path and effectively dispersing the impact force.

[0070] The connecting end plate 4 can be detachably connected to the front end of the longitudinal beam 200. That is, the connecting end plate 4 can be detachably connected to the front end of the longitudinal beam 200 by bolt connection, screw connection, plug connection, snap connection or other detachable connection methods, so that the energy absorption box structure 100 can be easily and conveniently disassembled and separated from the longitudinal beam 200, which is convenient for maintenance and replacement of the energy absorption box structure 100, and is flexible and convenient.

[0071] In a specific embodiment, such as Figure 2 , Figure 5As shown, the front end of the longitudinal beam 200 includes an overlapping structure 500, which is used to connect with multiple connecting structures, such as the front shock absorber mount and A-pillar structure, to facilitate the formation of multiple force transmission channels. The overlapping structure 500 is connected to the outer side of the front part of the longitudinal beam 200, that is, the overlapping structure 500 is integrated into the longitudinal beam 200. The front end of the longitudinal beam 200 includes a longitudinal beam connecting plate 203, and the connecting end plate 4 is bolted to the longitudinal beam connecting plate 203 by multiple bolts. At the same time, the overlapping structure 500 is also connected to the longitudinal beam connecting plate 203. Thus, two force transmission channels can be formed. The collision energy can be transferred to the longitudinal beam connecting plate 203 through the energy-absorbing box structure 100, and then to the longitudinal beam 200. The collision energy can also be transferred to the overlapping structure 500 through the energy-absorbing box structure 100 and the longitudinal beam connecting plate 203, and then to other structures, thus achieving effective dispersion of collision energy.

[0072] In other embodiments, the energy-absorbing box body 1 has at least two mounting surfaces 16 for connecting to the front-end module 400 of the vehicle, respectively.

[0073] In other words, the energy-absorbing box body 1 can have two, three, four, or more mounting surfaces 16, and one, two, or three mounting surfaces 16 can be connected to the front-end module 400 of the vehicle, such as... Figure 5 As shown, the two mounting surfaces 16 are connected to the front-end module 400 of the vehicle to connect the energy-absorbing box structure 100 with the front-end module 400, thereby improving the installation stability of the front-end module 400 and the energy-absorbing box structure 100.

[0074] It should be noted that the front-end module 400 is a system component integrating multiple key components of the vehicle's front end. It integrates multiple components in the front of the engine compartment into a single assembly system using a specialized frame. In existing technologies, some energy-absorbing boxes have excessive creases to ensure crumple zones, resulting in pre-fabricated creases on every edge of the entire energy-absorbing box. This prevents it from serving as a flat mounting surface, requiring manual installation, increasing production costs and reducing efficiency. For the energy-absorbing box structure 100 used in vehicles, providing a mounting surface for bracket openings is a crucial requirement for ensuring production precision and efficiency. Some designs use dual energy-absorbing boxes to improve energy absorption, but the dual-energy-absorbing box structure 100 requires even higher precision installation, making the process more challenging.

[0075] like Figure 5As shown, the energy-absorbing box structure 100 of this application is provided with at least two mounting and fixing surfaces 16, and the area of ​​the mounting and fixing surfaces 16 can be set to be large and can be set to be flat. Holes can be directly drilled on the mounting and fixing surfaces 16 to connect with the front-end module 400, without having to complete the corresponding installation manually. This facilitates installation, improves installation accuracy, thereby reducing production costs and improving production efficiency.

[0076] In practical design, for example, such as Figure 5 As shown, the energy-absorbing box body 1 can have two mounting surfaces 16. The first mounting surface 16 is the surface of the inner top plate 141, and the second mounting surface 16 is the surface of the inner side plate 142, as shown. Figure 3 As shown, mounting holes 161 can be made on the mounting surface 16 so that the connector 9 can pass through the front-end module 400 and the mounting surface 16 to achieve a fixed connection between the energy-absorbing box body 1 and the front-end module 400. Figure 5 The connecting component 9 shown is a bolt. The mounting hole 161 on the second mounting surface 16 ensures the lateral dynamic stiffness of this mounting point.

[0077] And such as Figure 3 As shown, a boss 162 can also be provided on the mounting surface 16, and the mounting hole 161 can be opened on the boss 162, thereby improving the connection strength between the front-end module 400 and the energy-absorbing box body 1, making the connection between the two more stable and reliable, and preventing the connection between the front-end module 400 and the energy-absorbing box body 1 from breaking and separating.

[0078] Therefore, the energy-absorbing box structure 100 of this application not only meets the engineering installation requirements and is easy to install, but also improves the impact resistance of the energy-absorbing box structure 100.

[0079] This utility model also proposes a front anti-collision beam assembly 1000.

[0080] The front anti-collision beam assembly 1000 according to an embodiment of the present utility model includes a longitudinal beam 200, an anti-collision beam 300, and an energy-absorbing box structure 100 of any of the above embodiments, wherein the energy-absorbing box structure 100 is connected between the anti-collision beam 300 and the longitudinal beam 200.

[0081] Specifically, such as Figure 1As shown, the front bumper beam assembly 1000 includes a front longitudinal beam 200, a bumper beam 300, and an energy-absorbing box structure 100. The energy-absorbing box structure 100 is connected between the bumper beam 300 and the longitudinal beam 200. That is, the front end of the energy-absorbing box structure 100 is connected to the bumper beam 300, and the rear end of the energy-absorbing box structure 100 is connected to the longitudinal beam 200, thus forming a longitudinal force transmission path. That is, the collision energy can be transferred from the front bumper beam 300 to the energy-absorbing box structure 100, and then transferred to the longitudinal beam 200 through the energy-absorbing box structure 100, so that the collision energy is transferred from front to rear, which meets the force transmission requirements of frontal collision.

[0082] In some embodiments, such as Figure 2 As shown, the transverse width of the energy-absorbing box body 1 is greater than the transverse width of the longitudinal beam 200.

[0083] Specifically, by setting a larger lateral width for the energy-absorbing box body 1, the energy-absorbing box structure 100 can be widened outward to connect with the overlapping structure 500 through the longitudinal beam connecting plate 203 and the connecting end plate 4. This allows the overlapping structure 500 to effectively support the rear end of the energy-absorbing box structure 100, making the energy-absorbing box structure 100 more stable and reliable as a whole. This creates a more stable force transmission path, allowing collision energy to be stably and effectively transmitted to the longitudinal beam 200 and the overlapping structure 500.

[0084] It should be noted that the 25% small offset crash test requires a vehicle to impact a fixed rigid barrier head-on at a speed of 64.4 km / h ± 1 km / h and an overlap of 25% ± 1% (driver's side). In the 25% offset crash, the energy-absorbing box structure 100 serves as the first line of energy absorption, absorbing the initial impact energy through its deformation.

[0085] Therefore, by setting the lateral width of the energy-absorbing box body 1 to be greater than the lateral width of the longitudinal beam 200, the overlap between the energy-absorbing box structure 100 and the collision barrier under the 25% offset collision condition can be effectively increased, thereby effectively improving the energy absorption of the energy-absorbing box structure 100 under the offset collision condition and ensuring the energy absorption and crushing effect of the energy-absorbing box structure 100.

[0086] In practical design, the ratio between the horizontal width of the energy-absorbing box body 1 and the vertical height of the energy-absorbing box body 1 can be set to greater than 1.5, so as to effectively increase the overlap between the energy-absorbing box structure 100 and the collision barrier, and ensure the crushing effect and the collision energy absorption effect.

[0087] In other embodiments, the longitudinal beam 200 includes an outer longitudinal beam plate 201 and an inner longitudinal beam plate 202, which are connected laterally, and the support plate 2 extends longitudinally and is disposed opposite to the outer longitudinal beam plate 201 in the longitudinal direction.

[0088] Specifically, such as Figure 2 As shown, the longitudinal beam 200 includes an outer longitudinal beam plate 201 and an inner longitudinal beam plate 202. The outer longitudinal beam plate 201 is located on the outer side, and the inner longitudinal beam plate 202 is located on the inner side. The inner longitudinal beam plate 202 and the outer longitudinal beam plate 201 are connected in the transverse direction, i.e., in the left-right direction and inward-outward direction, to form a longitudinally extending longitudinal beam structure. The support plate 2 extends longitudinally and is positioned directly opposite the outer longitudinal beam plate 201 in the longitudinal direction. That is, in the projection along the vehicle's front-rear direction, the projections of the support plate 2 and the outer longitudinal beam plate 201 at least partially overlap, thus forming a straight transmission path. This allows collision energy to be effectively transferred to the longitudinal beam 200. Simultaneously, the outer longitudinal beam plate 201 effectively supports the support plate 2 in the longitudinal direction, enabling the support plate 2 to more stably support the energy-absorbing box body 1, further improving the stability of the energy-absorbing box structure 100 during collision deformation.

[0089] Therefore, by setting the aforementioned energy-absorbing box structure 100 in the front bumper beam assembly 1000, the overall structure of the front bumper beam assembly 1000 can be made more stable, effectively disperse and absorb collision energy, prevent the longitudinal beam 200 from undergoing excessive deformation and being damaged, and reduce the collision energy transmitted to the rear.

[0090] This utility model also proposes a vehicle.

[0091] The vehicle according to the present invention includes the energy-absorbing box structure 100 of any of the above embodiments or the front anti-collision beam assembly 1000 of any of the above embodiments.

[0092] According to the embodiments of the present invention, the vehicle can meet the needs of the vehicle under various collision conditions through the above-mentioned energy-absorbing box structure 100 or front anti-collision beam assembly 1000, achieve the optimal energy absorption effect, thereby improving the safety of the vehicle and reducing the risk of damage to the vehicle.

[0093] By setting a support plate 2, which connects and supports the inner top wall and inner bottom wall of the energy absorption cavity 13, and divides the energy absorption cavity 13 into an inner energy absorption cavity 131 and an outer energy absorption cavity 132 distributed in the inner and outer directions, the lateral stability of the energy absorption box structure 100 is improved, the instability of the energy absorption box structure 100 during the crushing process is reduced, thereby improving the stability and energy absorption effect of the energy absorption box structure 100 during the collision deformation process. In addition, the energy absorption box structure 100 can disperse the collision energy to the two energy absorption cavities 13, avoid local stress concentration, improve the energy absorption effect and load efficiency, meet the requirements of offset collision conditions, thereby reducing the deformation of the occupant compartment and improving the protection effect of the occupant compartment.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy-absorbing box structure, characterized in that, include: Energy-absorbing box body (1), an energy-absorbing cavity (13) is formed inside the energy-absorbing box body (1); Support plate (2) is located inside the energy absorption cavity (13). The support plate (2) is connected and supported between the inner top wall and the inner bottom wall of the energy absorption cavity (13), and divides the energy absorption cavity (13) into an inner energy absorption cavity (131) and an outer energy absorption cavity (132) distributed in the inner and outer directions.

2. The energy-absorbing box structure according to claim 1, characterized in that, The energy-absorbing box body (1) includes a front section (11) and a rear section (12) of the energy-absorbing box connected in the longitudinal direction. The front end of the energy-absorbing box (11) has a beveled structure (111), which is connected to the anti-collision beam (300). And / or, the front section (11) of the energy-absorbing box is provided with at least one first collapse portion (31). And / or, the rear section (12) of the energy-absorbing box is provided with at least one second collapse portion (32).

3. The energy-absorbing box structure according to claim 2, characterized in that, The oblique structure (111) includes an overlapping extension plate (1111), at least a portion of which overlaps the surface of the anti-collision beam (300); And / or, the first contractile portion (31) is constructed as a contractile rib; And / or, the second crumple (32) is constructed as a crumple crease.

4. The energy-absorbing box structure according to claim 2, characterized in that, There are multiple first collapse portions (31), and the multiple first collapse portions (31) are distributed at intervals along the transverse and / or longitudinal directions in the front section (11) of the energy-absorbing box. And / or, there are multiple second collapse portions (32), and the multiple second collapse portions (32) are distributed longitudinally at intervals in the rear section (12) of the energy-absorbing box.

5. The energy-absorbing box structure according to claim 1, characterized in that, The energy-absorbing box body (1) includes an inner shell (14) and an outer shell (15). The inner shell (14) and the outer shell (15) are connected laterally and together define the energy-absorbing cavity (13). The support plate (2) is connected to the connection between the inner shell (14) and the outer shell (15).

6. The energy-absorbing box structure according to claim 5, characterized in that, The inner shell (14) includes an inner top plate (141), an inner side plate (142) and an inner bottom plate (143). The inner top plate (141) and the inner bottom plate (143) are spaced apart and opposite to each other. The inner side plate (142) is connected between the inner top plate (141) and the inner bottom plate (143). The outer shell (15) includes an outer top plate (151), an outer side plate (152) and an outer bottom plate (153). The outer top plate (151) and the outer bottom plate (153) are spaced apart and opposite to each other. The outer side plate (152) is connected between the outer top plate (151) and the outer bottom plate (153). The inner side plate (142) and the outer side plate (152) are distributed opposite to each other, the inner top plate (141) and the outer top plate (151) are connected by overlapping, and the inner bottom plate (143) and the outer bottom plate (153) are connected by overlapping.

7. The energy-absorbing box structure according to claim 1, characterized in that, It also includes a connecting end plate (4), which is connected to the rear end of the energy-absorbing box body (1), and the connecting end plate (4) is used to be detachably connected to the front end of the longitudinal beam (200); And / or, the energy-absorbing box body (1) has at least two mounting surfaces (16) for connecting to the front-end module (400) of the vehicle respectively.

8. A front bumper beam assembly, characterized in that, The device includes a longitudinal beam (200), a crash beam (300), and an energy-absorbing box structure as described in any one of claims 1-7, wherein the energy-absorbing box structure is connected between the crash beam (300) and the longitudinal beam (200).

9. The front bumper beam assembly according to claim 8, characterized in that, The transverse width of the energy-absorbing box body (1) is greater than the transverse width of the longitudinal beam (200); And / or, the longitudinal beam (200) includes an outer longitudinal beam plate (201) and an inner longitudinal beam plate (202), the outer longitudinal beam plate (201) and the inner longitudinal beam plate (202) are connected in the transverse direction, and the support plate (2) extends in the longitudinal direction and is arranged opposite to the outer longitudinal beam plate (201) in the longitudinal direction.

10. A vehicle, characterized in that, Includes the energy-absorbing box structure according to any one of claims 1-7 or the front bumper beam assembly according to any one of claims 8-9.

Images